U.S. patent application number 15/391529 was filed with the patent office on 2017-10-05 for electric air pump.
The applicant listed for this patent is BESTWAY INFLATABLES & MATERIAL CORP.. Invention is credited to Feng LIU.
Application Number | 20170280884 15/391529 |
Document ID | / |
Family ID | 57414303 |
Filed Date | 2017-10-05 |
United States Patent
Application |
20170280884 |
Kind Code |
A1 |
LIU; Feng |
October 5, 2017 |
ELECTRIC AIR PUMP
Abstract
The present disclosure provides an electric air pump which
includes: a first housing including a cavity; a first air pump
arranged inside the cavity, the first air pump being provided with
a fan blade cover that divides the cavity into a fan blade cavity
and a driving cavity; a switch driving device arranged inside the
driving cavity, connected to the first air pump, and adapted to
drive a switching between air passages; an air pressure sensor
arranged inside the driving cavity for detecting an internal
pressure value of an inflatable body; a central control unit
arranged inside the driving cavity and electrically connected to
the first air pump, the switch driving device, and the air pressure
sensor; and at least one panel covering the cavity opening of the
cavity. The electric air pump can precisely control an inflation
pressure, and automatically and silently supplement air via an air
supplement pump.
Inventors: |
LIU; Feng; (Shanghai,
CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
BESTWAY INFLATABLES & MATERIAL CORP. |
Shanghai |
|
CN |
|
|
Family ID: |
57414303 |
Appl. No.: |
15/391529 |
Filed: |
December 27, 2016 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
F04D 27/00 20130101;
F04D 25/084 20130101; F04D 25/08 20130101; F04D 25/068 20130101;
A47C 27/082 20130101; A47C 27/083 20130101; F04D 27/005
20130101 |
International
Class: |
A47C 27/08 20060101
A47C027/08; F04D 27/00 20060101 F04D027/00; F04D 25/06 20060101
F04D025/06; F04D 25/08 20060101 F04D025/08 |
Foreign Application Data
Date |
Code |
Application Number |
Apr 5, 2016 |
CN |
201620276106.9 |
Claims
1. An electric air pump comprising: a first housing comprising a
cavity with a cavity opening, said cavity defining a space; a first
air pump arranged inside said cavity for charging air into an
inflatable body or discharging air from said inflatable body, said
first air pump being provided with a fan blade cover, said fan
blade cover dividing said cavity into a fan blade cavity and a
driving cavity, and said driving cavity being in communication with
an external space; a switch driving device arranged inside said
driving cavity, connected to said first air pump, and adapted to
drive a switching between two or more air passages; an air pressure
sensor arranged inside said driving cavity and in communication
with said inflatable body for detecting an internal pressure value
of said inflatable body; a central control unit arranged inside
said driving cavity and electrically connected to said first air
pump, said switching driving device, and said air pressure sensor;
and at least one panel covering the cavity opening of said
cavity.
2. The electric air pump of claim 1, wherein a first vent hole is
arranged on said panel, and a vent pipe in communication with said
first vent hole is arranged at said first vent hole.
3. The electric air pump of claim 2 further comprising: a first
input unit connected to said central control unit, wherein said
first input unit is provided with at lest one of an inflating
signal input device for sending an inflating signal to the central
control unit, a deflating signal input device for sending a
deflating signal to the central control unit, and a stop signal
input device for sending a stop signal to the central control
unit.
4. The electric air pump of claim 3, wherein said first input unit
comprises a first inflating signal input device, a second inflating
signal input device, and a third inflating signal input device
corresponding to three different predetermined inflation pressure
values respectively.
5. The electric air pump of claim 3, wherein said first input unit
comprises an inflation pressure input device for manually setting
an inflation pressure value, said inflation pressure input device
is provided with at least one pressure setting button and a switch
button.
6. The electric air pump of claim 3, wherein said first input unit
is a first touch screen.
7. The electric air pump of claim 3, wherein said first input unit
is arranged on said panel.
8. The electric air pump of claim 1 further comprising: a first
display unit arranged on said panel, connected to said central
control unit, and receiving a display signal generated by said
central control unit.
9. The electric air pump of claim 8, wherein said first display
unit is an electronic display screen, a display lamp, or a second
touch screen.
10. The electric air pump of claim 1, wherein said first air pump
comprises: said fan blade cover having a first air inlet and a
first air outlet; an impeller arranged inside said fan blade
cavity; and a motor arranged inside said driving cavity and
arranged on said fan blade cover, said motor being connected to
said central control unit, a rotary shaft of said motor passing
through said first air inlet and being connected to said impeller,
and said switch driving device being connected to said first air
outlet.
11. The electric air pump of claim 1, wherein a probe of said air
pressure sensor is arranged inside said driving cavity and in
communication with a pressure measuring hole on said first housing,
said pressure measuring hole is in communication with the
inflatable body.
12. The electric air pump of claim 11, wherein the probe of said
air pressure sensor is positioned at said pressure measuring
hole.
13. The electric air pump of claim 11, wherein the probe of said
air pressure sensor is in communication with the inflatable body
via a pressure-measuring air tube which has two ends respectively
connected to said probe and said pressure measuring hole.
14. The electric air pump of claim 1, wherein said first housing
comprises a second vent hole in communication with the inflatable
body, with a one-way valve arranged at said second vent hole.
15. The electric air pump of claim 1, wherein said switch driving
device comprises: a motor drive unit connected to said central
control unit, said central control unit being adapted to send a
starting signal to activate said motor, and an air passage switch
device connected to a first air outlet of said first air pump and
in communication with a first vent hole of said panel and said
second vent hole of said first housing, wherein said two or more
air passages are selected from an inflation air passage, a
deflating air passage, and a closed air passage.
16. The electric air pump of claim 15, wherein said switch driving
device further comprises: at least one position signal generating
device arranged inside said driving cavity and connected to said
central control unit.
17. The electric air pump of claim 1, wherein said central control
unit comprises: a main control unit arranged inside said driving
cavity and connected to said first air pump, said switch driving
device, and said air pressure sensor, and an input control unit
connected to said main control unit and said first input unit.
18. The electric air pump of claim 16, wherein said position signal
generating device comprises: a first position signal generating
device, wherein said first position signal generating device is
configured to be triggered by said air passage switch device, when
the air passage switch device is switched to the inflation air
passage, to generate a first position signal and send the same to
said central control unit; a second position signal generating
device, wherein said second position signal generating device is
configured to be triggered by said air passage switch device, when
the air passage switch device is switched to the deflating air
passage, to generate a second position signal and send the same to
said central control unit; and a third position signal generating
device, wherein said third position signal generating device is
configured to be triggered by said air passage switch device, when
the air passage switch device is switched to the closed air
passage, to generate a third position signal and send the same to
said central control unit.
19. The electric air pump of claim 18, wherein said first, said
second, or said third position signal generating device is a
microswitch, a photoelectric switch, or a reed switch.
20. The electric air pump of claim 18, wherein said air passage
switch device comprises: an outer pipe in communication with said
second vent hole of said first housing and connected to an air
outlet of said fan blade cover; and an inner pipe, wherein said
inner pipe is partially arranged inside said outer pipe, wherein
said inner pipe is adapted to move axially and fitted rotatably in
said outer pipe, wherein a first end of said inner pipe is in
communication with a first vent hole of said panel.
21. The electric air pump of claim 20, wherein said outer pipe
comprises: a first opening positioned at a first end of the outer
pipe, said inner pipe being arranged inside said outer pipe via
said first opening; a second opening positioned at a second end of
the outer pipe and connected to said second vent hole; a third
opening positioned on the pipe wall of the outer pipe and in
communication with said driving cavity; a fourth opening positioned
on the pipe wall of the outer pipe and align axially to said third
opening, said fourth opening being in communication with said
driving cavity; and an air inlet passage connected to a first air
outlet of said fan blade cover.
22. The electric air pump of claim 20, wherein said inner pipe
comprises: a fifth opening positioned at the first end of the inner
pipe, said inner pipe being partially and movably sheathed on the
outer side of said vent pipe via said fifth opening; a sixth
opening positioned at a second end of the inner pipe and in
communication with said second vent hole; a seventh opening
positioned on the pipe wall of the inner pipe; an eighth opening
located on the pipe wall of the inner pipe opposite to said seventh
opening; and a spacer arranged inside the inner pipe and dividing
the interior of the inner pipe into an upper room and a lower room
isolated from each other, said seventh opening and eighth opening
being respectively arranged on two sides of said spacer.
23. The electric air pump of claim 21, wherein, said outer pipe
further comprises a slideway arranged on the pipe wall of the outer
pipe and has an arc shape which is high in the middle and low at
both ends; and said inner pipe further comprises a sliding block
which is arranged on the outer surface of the inner pipe and which
is arranged to slide within said slideway so that said inner pipe
rotates while axially moves.
24. The electric air pump of claim 14, wherein said one-way valve
comprises: a valve plate for covering said second vent hole, said
valve plate being provided with a seal ring; a valve rod connected
to said valve plate and provided at an end with a position limiting
element; a support frame arranged inside the second vent hole, said
valve rod passing through said support frame and being adapted to
move axially; and a spring sheathed on the outer side of the valve
rod between said position limiting element and support frame, so
that said valve plate closes said second vent hole.
25. The electric air pump of claim 24, wherein said first housing
further comprises a protection cover covering said second vent hole
to protect said one-way valve.
26. The electric air pump of claim 22, wherein said inner pipe
further comprises: a first transmission gear arranged on the
outside of said first end of said inner pipe; a first bump arranged
on the outside of said first end of said inner pipe for triggering
said third position signal generating device; and a second bump
arranged on the outside of said first end of said inner pipe and at
a position opposite to said first bump for triggering said first
position signal generating device or a second position signal
generating device.
27. The electric air pump of claim 15, wherein said motor drive
unit further comprises: a driving motor; a second transmission gear
connected to a rotary shaft of said driving motor and fitted with
said first transmission gear, and a motor stand connected to said
outer pipe, said driving motor being mounted on said motor stand,
wherein said driving motor driving the first transmission gear via
the second transmission gear, so that said inner pipe rotates
within said outer pipe.
28. The electric air pump of claim 1 further comprising: a first
wireless communication module in communication connection with said
central control unit; and a mobile terminal provided with a second
input unit and a second wireless communication module in
communication connection with said first wireless communication
module, said second input unit being in communication connection
with said central control unit via said second wireless
communication module and said first wireless communication module,
said second input unit provided with at least one of an inflating
signal input device for sending an inflating signal to the central
control unit, a deflating signal input device for sending a
deflating signal to the central control unit, and a stop signal
input device for sending a stop signal to the central control
unit.
29. The electric air pump of claim 28, wherein said second input
unit further comprises a first inflating signal input device, a
second inflating signal input device and a third inflating signal
input device corresponding to three different predetermined
inflation pressure values respectively.
30. The electric air pump of claim 29, wherein said second input
unit further comprises an inflation pressure input device for
manually setting an inflation pressure value through said mobile
terminal and sending the inflation pressure value to said central
control unit.
31. The electric air pump of claim 28, wherein said mobile terminal
further comprises a second display unit in communication connection
with the central control unit via said second wireless
communication module and said first wireless communication module,
wherein said display unit receives a display signal generated by
said central control unit.
32. The electric air pump of claim 28, wherein said first wireless
communication module and said second wireless communication module
are WIFI modules, Bluetooth modules, infrared modules,
second-generation mobile communication modules, third-generation
mobile communication modules, or fourth-generation mobile
communication modules.
33. The electric air pump of claim 28 further comprising: a
functional unit connected to said central control unit and
receiving a control signal from said central control unit, wherein
said first input unit further comprises a signal input device for
the functional unit, wherein said first input unit sends a control
signal for said functional unit to said central control unit via
said signal input device for the functional unit.
34. The electric air pump of claim 33, wherein said second input
unit further comprises a signal input device for the functional
unit.
35. The electric air pump of claim 33, wherein said functional unit
comprises: a temperature controller and a heating unit adapted to
be mounted on said inflatable body, an external audio unit, an
external lighting unit, and/or an external interface.
36. The electric air pump of claim 10, wherein said motor is a
variable speed motor.
37. The electric air pump of claim 10 further comprising: a second
air pump connected to said central control unit for supplementing
air for said inflatable body, wherein said second air pump further
comprises: a second air inlet for allowing air from the external
space to enter said second air pump, and a second air outlet in
communication with said inflatable body.
38. The electric air pump of claim 37 further comprising: a shock
absorber, at least a first end of said shock absorber being
connected to said second air pump.
39. The electric air pump of claim 38 further comprising: a first
mounting frame connected to said first housing, a second end of
said shock absorber being connected to said first mounting
frame.
40. The electric air pump of claim 37, wherein said second air pump
is arranged inside said driving cavity, said second air outlet is
in communication with the inflatable body via an air supplement
pipe, one end of said air supplement pipe is connected to said
second air outlet, and the other end is connected to an air
supplement port positioned on the first housing.
41. The electric air pump of claim 40, wherein said second air pump
comprises a one-way valve connected to said air supplement pipe for
blocking the air in said inflatable body flowing to the external
space after said second air pump stops.
42. The electric air pump of claim 37 further comprising: a second
housing comprising a box-shaped cavity provided with a cavity
opening, and a second air outlet, wherein said second air pump is
arranged inside said second housing, and a second panel covering
the cavity opening of said second housing, said second panel being
provided with a second air inlet.
43. The electric air pump of claim 42, further comprising: at least
one shock absorber, a first end of said at least one shock absorber
being connected to said second air pump.
44. The electric air pump of claim 43 further comprising: a second
mounting frame connected to said second housing, a second end of
said shock absorber being connected to said second mounting
frame.
45. The electric air pump of claim 37, wherein said second air pump
is a silent diaphragm pump.
46. The electric air pump of claim 3 further comprising: a
controller, wherein said controller is provided with said first
input unit.
Description
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] The present application claims priority to Chinese patent
application No. 201620276106.9, filed on Apr. 5, 2016, and entitled
"INTELLIGENT ELECTRIC AIR PUMP", and the entire disclosure of which
is incorporated herein by reference.
TECHNICAL FIELD
[0002] The present disclosure generally relates to air pump control
technology, and more particularly, to an electric air pump suitable
for an airbed and for charging air into or discharging air from an
airbed.
BACKGROUND
[0003] Airbed is becoming more and more popular and is suitable for
camping and serving as a household spare mattress for a guest's
temporary use, given its advantages such as small in volume, easy
to carry and store, etc. The airbed at least includes one
inflatable air cavity. Usually, a conventional air-charging device,
such as a manually operated air pump or a hand-held electric air
pump, is used to charge air into the airbed and supplement air for
the airbed when internal pressure of the airbed attenuates. There
is another type of conventional electric air pump, which is a
built-in electric air pump mounted on a side wall of the airbed, to
charge air into or discharge air from the airbed. Commonly, the
built-in electric air pump includes a first housing and a motor, a
fan blade, a blade cover and a manually operated air passage switch
device arranged inside the first housing, the first housing is
provided with a one-way valve thereon, and the motor rotates in
high speed after being powered on and drives the impeller to
rotate, so as to charge air into or discharge air from the
airbed.
[0004] Conventional air-charging devices have many disadvantages.
For example, since the air cavity of the airbed has a relatively
large volume, it is a time-consuming and laborious work to charge
the airbed using the manually operated air pump and the hand-held
electric air pump. In addition, the user can not precisely control
an inflation pressure value. As a result, the airbed is easy to be
damaged if the inflation pressure value is too high or needs to be
supplemented with air frequently if the inflation pressure value is
insufficient, which both will cause many operational inconveniences
to the user. Even though the conventional built-in air pump
possesses air charging and air discharging functions, manual
operation is also needed to switch air passages for the air
charging, discharging and pump closing processes. Similar to the
manually operated air pump and the hand-held electric air pump, the
conventional built-in electric air pump can not precisely control
the inflation pressure value, and may cause damage of the airbed
and affect service life of the product.
SUMMARY
[0005] With respect to disadvantages and deficiencies of above
described existing technology, the present disclosure provides a
brand new electric air pump which is directed to determine a
following operating mode according to an internal pressure value of
an inflatable body, so as to avoid problems of over-charging or
under-charging. Moreover, an air supplement pump is further
arranged outside a main air pump for specially supplementing air,
so as to maintain a relatively stable internal pressure value and
further to reduce power consumption.
[0006] According to one aspect of the present disclosure, an
electric air pump is provided, which includes: a first housing
including a cavity with a cavity opening, the cavity defining a
space; a first air pump arranged inside the cavity for charging air
into an inflatable body or discharging air from the inflatable
body, the first air pump being provided with a fan blade cover, the
fan blade cover dividing the cavity into a fan blade cavity and a
driving cavity, and the driving cavity being in communication with
an external space; a switch driving device arranged inside the
driving cavity, connected to the first air pump, and adapted to
drive a switching between two or more air passages; an air pressure
sensor arranged inside the driving cavity and in communication with
the inflatable body for detecting an internal pressure value of the
inflatable body; a central control unit arranged inside the driving
cavity and electrically connected to the first air pump, the switch
driving device, and the air pressure sensor; and at least one panel
covering the cavity opening of the cavity.
[0007] Optionally, in the above described electric air pump, a
first vent hole is arranged on the panel, and a vent pipe in
communication with the first vent hole is arranged at the first
vent hole.
[0008] Optionally, the above described electric air pump further
includes a first input unit connected to the central control unit,
wherein the first input unit is provided with at least one of an
inflating signal input device for sending an inflating signal to
the central control unit, a deflating signal input device for
sending a deflating signal to the central control unit, and a stop
sign input device for sending a stop signal to the central control
unit.
[0009] Optionally, in the above described electric air pump, the
first input unit includes a first inflating signal input device, a
second inflating signal input device, and a third inflating signal
input device corresponding to three different predetermined
inflation pressure values respectively.
[0010] Optionally, in the above described electric air pump, the
first input unit includes an inflation pressure input device for
manually setting an inflation pressure value, the inflation
pressure input device being provided with at least one pressure
setting button and a switch button.
[0011] Optionally, in the above described electric air pump, the
first input unit is a first touch screen.
[0012] Optionally, the first input unit is arranged on the
panel.
[0013] Optionally, the above described electric air pump further
includes: a first display unit arranged on the panel, connected to
the central control unit, and receiving a display signal generated
by the central control unit.
[0014] Optionally, in the above described electric air pump, the
first display unit is an electronic display screen, a display lamp,
or a second touch screen. In some embodiments, the second touch
screen and the first touch screen may be a common component.
[0015] Optionally, in the above described electric air pump, the
first air pump includes: the fan blade cover having a first air
inlet and a first air outlet; an impeller arranged inside the fan
blade cavity; and a motor arranged inside the driving cavity and
arranged on the fan blade cover, the motor being connected to the
central control unit, a rotary shaft of the motor passing through
the first air inlet and being connected to the impeller, and the
switch driving device being connected to the first air outlet.
[0016] Optionally, in the above described electric air pump, a
probe of the air pressure sensor is arranged inside the driving
cavity and in communication with a pressure measuring hole on the
first housing, the pressure measuring hole being in communication
with the inflatable body.
[0017] Optionally, in the above described electric air pump, the
probe of the air pressure sensor is positioned in the pressure
measuring hole.
[0018] Optionally, in the above described electric air pump, the
probe of the air pressure sensor is in communication with the
inflatable body via a pressure-measuring air tube which has two
ends respectively connected to the probe and the pressure measuring
hole.
[0019] Optionally, in the above described electric air pump, the
first housing includes a second vent hole in communication with the
inflatable body, with a one-way valve arranged at the second vent
hole.
[0020] Optionally, in the above described electric air pump, the
switch driving device includes: a motor drive unit connected to the
central control unit, the central control unit being adapted to
send a starting signal to activate the motor, and an air passage
switch device connected to a first air outlet of the first air pump
and in communication with a first vent hole of the panel and the
second vent hole of the first housing, wherein the air passages
includes an inflation air passage, a deflating air passage and a
closed air passage.
[0021] Optionally, in the above described electric air pump, the
switch driving device further includes: at least one position
signal generating device arranged inside the driving cavity and
connected to the central control unit.
[0022] Optionally, in the above described electric air pump, the
central control unit includes: a main control unit arranged inside
the driving cavity and connected to the first air pump, the switch
driving device, and the air pressure sensor, and an input control
unit connected to the main control unit and the first input
unit.
[0023] Optionally, in the above described electric air pump, the
position signal generating device includes: a first position signal
generating device, wherein the first position signal generating
device is configured to be triggered by the air passage switch
device, when the air passage switch device is switched to the
inflation air passage, to generate a first position signal and send
the same to the central control unit; a second position signal
generating device, wherein the second position signal generating
device is configured to be triggered by the air passage switch
device, when the air passage switch device is switched to the
deflating air passage, to generate a second position signal and
send the same to the central control unit; and a third position
signal generating device, wherein the third position signal
generating device is configured to be triggered by the air passage
switch device, when the air passage switch device is switched to
the closed air passage, to generate a third position signal and
send the same to the central control unit.
[0024] Optionally, in the above described electric air pump, the
first, the second, or the third position signal generating device
is a microswitch, a photoelectric switch, or a reed switch.
[0025] Optionally, in the above described electric air pump, the
air passage switch device includes: an outer pipe in communication
with the second vent hole of the first housing and connected to an
air outlet of the fan blade cover; and an inner pipe, wherein the
inner pipe is partially arranged inside the outer pipe, wherein the
inner pipe is adapted to move axially and fitted rotatably in the
outer pipe, wherein a first end of the inner pipe is in
communication with a first vent hole of the panel.
[0026] Optionally, in the above described electric air pump, the
outer pipe includes: a first opening positioned at a first end of
the outer pipe, the inner pipe being arranged inside the outer pipe
via the first opening; a second opening positioned at a second end
of the outer pipe and connected to the second vent hole; a third
opening positioned on the pipe wall of the outer pipe and in
communication with the driving cavity; a fourth opening positioned
on the pipe wall of the outer pipe and align axially to the third
opening, the four opening being in communication with the driving
cavity; and an air inlet passage connected to a first air outlet of
the fan blade cover.
[0027] Optionally, in the above described electric air pump, the
inner pipe includes: a fifth opening positioned at the first end of
the inner pipe, the inner pipe being partially and movably sheathed
on the outer side of the vent pipe via the fifth opening; a sixth
opening positioned at a second end of the inner pipe and in
communication with the second vent hole; a seventh opening
positioned on the pipe wall of the inner pipe; an eighth opening
positioned on the pipe wall of the inner pipe opposite to the
seventh opening; and a spacer arranged inside the inner pipe and
dividing the interior of the inner pipe into an upper room and a
lower room isolated from each other, the seventh opening and eighth
opening being respectively arranged on two sides of the spacer.
[0028] Optionally, in the above described electric air pump, the
outer pipe further includes a slideway arranged on the pipe wall of
the outer pipe and has an arc shape which is high in the middle and
low at both ends; and the inner pipe further includes a sliding
block which is arranged on the outer surface of the inner pipe and
which is arranged to slide within the slideway so that the inner
pipe rotates while axially moves.
[0029] Optionally, in the above described electric air pump, the
one-way valve includes: a valve plate for covering said second vent
hole, said valve plate being provided with a seal ring; a valve rod
connected to the valve plate and provided at an end with a position
limiting element; a support frame arranged inside the second vent
hole, the valve rod passing through the support frame and being
adapted to move axially; and a spring sheathed on the outer side of
the valve rod between the position limiting element and support
frame, so that the valve plate closes the second vent hole.
[0030] Optionally, in the above described electric air pump, the
first housing further includes a protection cover covering the
second vent hole to protect the one-way valve.
[0031] Optionally, in the above described electric air pump, the
inner pipe further includes: a first transmission gear arranged on
the outside of the first end of the inner pipe; a first bump
arranged on the outside of the first end of the inner pipe for
triggering the third position signal generating device; and a
second bump arranged on the outside of the first end of the inner
pipe and at a position opposite to the first bump for triggering
the first position signal generating device or the second position
signal generating device.
[0032] Optionally, in the above described electric air pump, the
motor drive unit further includes: a driving motor; a second
transmission gear connected to a rotary shaft of the driving motor
and fitted with the first transmission gear, and a motor stand
connected to the outer pipe, the driving motor being mounted on the
motor stand, the driving motor driving the first transmission gear
via the second transmission gear so that the inner pipe rotates
within the outer pipe.
[0033] Optionally, the above described electric air pump further
includes: a first wireless communication module in communication
connection with the central control unit; and a mobile terminal
provided with a second input unit and a second wireless
communication module in communication connection with the first
wireless communication module, the second input unit being in
communication connection with the central control unit via the
second wireless communication module and the first wireless
communication module, the second input unit being provided with at
least one of an inflating signal input device for sending an
inflating signal to the central control unit, a deflating signal
input device for sending a deflating signal to the central control
unit, and a stop signal input device for sending a stop signal to
the central control unit.
[0034] Optionally, in the above described electric air pump, the
second input unit further includes a first inflating signal input
device, a second inflating signal input device and a third
inflating signal input device corresponding to three different
predetermined inflation pressure values respectively.
[0035] Optionally, in the above described electric air pump, the
second input unit further comprises an inflation pressure input
device for manually setting an inflation pressure value through the
mobile terminal and sending the inflation pressure value to the
central control unit.
[0036] Optionally, in the above described electric air pump, the
mobile terminal further includes a second display unit in
communication connection with the central control unit via the
second wireless communication module and the first wireless
communication module, wherein the display unit receives a display
signal generated by the central control unit.
[0037] Optionally, in the above described electric air pump, the
first wireless communication module and the second wireless
communication module are WIFI modules, Bluetooth modules, infrared
modules, second-generation mobile communication modules,
third-generation mobile communication modules, or fourth-generation
mobile communication modules.
[0038] Optionally, the above described electric air pump further
includes: a functional unit connected to the central control unit
and receiving a control signal from the central control unit,
wherein the first input unit further includes a signal input device
for the functional unit, wherein the first input unit sends a
control signal for the functional unit to the central control unit
via the signal input device for the functional unit.
[0039] Optionally, in the above described electric air pump, the
second input unit further includes a signal input device for the
functional unit.
[0040] Optionally, in the above described electric air pump, the
functional unit includes: a temperature controller and a heating
unit adapted to be mounted on the inflatable body, an external
audio unit, an external lighting unit, and/or an external
interface.
[0041] Optionally, in the above described electric air pump, the
motor is a variable speed motor.
[0042] Optionally, the above described electric air pump further
includes: a second air pump connected to the central control unit
for supplementing air for the inflatable body, wherein the second
air pump further includes: a second air inlet for allowing air from
the external space to enter the second air pump, and a second air
outlet in communication with the inflatable body.
[0043] Optionally, the above described electric air pump further
includes: a shock absorber, at least a first end of the shock
absorber being connected to the second air pump.
[0044] Optionally, the above described electric air pump further
includes: a first mounting frame connected to the first housing, a
second end of the shock absorber being connected to the first
mounting frame.
[0045] Optionally, in the above described electric air pump, the
second air pump is arranged inside the driving cavity, the second
air outlet is in communication with the inflatable body via an air
supplement pipe, one end of the air supplement pipe is connected to
the second air outlet, and the other end is connected to an air
supplement port positioned on the first housing.
[0046] Optionally, in the above described electric air pump, the
second air pump includes a one-way valve connected to the air
supplement pipe for blocking the air in the inflatable body flowing
to the external space after the second air pump stops.
[0047] Optionally, in the above described electric air pump further
includes: a second housing including a box-shaped cavity provided
with a cavity opening, and a second air outlet, wherein the second
air pump is arranged inside the second housing, and a second panel
covering the cavity opening of the second housing, the second panel
being provided with a second air inlet.
[0048] Optionally, in the above described electric air pump further
includes: at least one shock absorber, a first end of the at least
one shock absorber being connected to the second air pump.
[0049] Optionally, in the above described electric air pump further
includes: a second mounting frame connected to the second housing,
a second end of the shock absorber being connected to the second
mounting frame.
[0050] Optionally, in the above described electric air pump, the
second air pump is a silent diaphragm pump.
[0051] Optionally, in the above described electric air pump further
includes: a controller, wherein the controller is provided with the
first input unit.
[0052] The electric air pump provided by the present disclosure
possesses at least the following technical features:
[0053] 1. inflation pressure can be precisely controlled,
therefore, airbed damage caused by a too high inflation pressure or
a problem of a too low inflation pressure can be avoided;
[0054] 2. various predetermined inflation pressure values can be
selected in the inflating process, therefore, the product has a
high comfort level;
[0055] 3. simple and convenient to operate, the air pump
automatically stops after the inflating process realizes the
predetermined pressure value or after a deflating process is
finished, there is no need to manually turn off the power and
switch the air passage switch device; and
[0056] 4. in usage, if the internal pressure of the airbed is lower
than the predetermined pressure value, the air pump can
automatically and silently supplement air, and automatically stop
the supplementing process when the internal pressure reaches the
predetermined pressure value, the user does not need to operate
manually.
[0057] It should be understood that, the above general description
and the following detailed description are just for giving an
example and for illustrating, and are directed to provide further
explanation for technical solutions as recited in the claims.
BRIEF DESCRIPTION OF THE DRAWINGS
[0058] The drawings are used for providing further illustrations to
the present disclosure, which are recorded as a part of the present
application. The drawings show embodiments of the present
disclosure, and play a role of explaining principles of the present
disclosure along with the present detailed description. In the
drawings:
[0059] FIG. 1 schematically illustrates a front view of an electric
air pump according one embodiment of the present disclosure.
[0060] FIG. 2 schematically illustrates a rear view of the electric
air pump shown in FIG. 1.
[0061] FIG. 3 schematically illustrates an exploded view of the
electric air pump shown in FIG. 1 from a first perspective.
[0062] FIG. 4 schematically illustrates an exploded view of the
electric air pump shown in FIG. 1 from a second perspective.
[0063] FIGS. 5 to 7 schematically illustrate three-dimension views
of a first air pump and a drive switch device from different
angles.
[0064] FIG. 8 schematically illustrates an air passage switch
device which is switched to an inflation air pressure.
[0065] FIG. 9 schematically illustrates an air passage switch
device which is switched to a deflating air passage.
[0066] FIG. 10 schematically illustrates an air passage switch
device which is switched to a closed air passage.
[0067] FIG. 11 schematically illustrates an exploded view of a
one-way valve according to one embodiment.
[0068] FIG. 12 schematically illustrates one embodiment with a
second air pump independently disposed.
[0069] FIG. 13 schematically illustrates a line-controlled electric
air pump.
[0070] FIGS. 14 and 15 schematically illustrate exploded views of a
first air pump and a drive switch device.
DETAILED DESCRIPTION
[0071] Embodiments of the present disclosure will be described in
detail in conjunction with the accompanying drawings. The
disclosure will be described with reference to certain embodiments
which are exemplarily shown in the drawings. Under any possible
circumstances, all the drawings will use a same label to represent
a same or a similar part. In addition, even though terms used in
the present disclosure are selected from terminologies publicly and
commonly used, some of the terms mentioned in the detailed
description of the present disclosure may be selected by the
applicant according to his or her judgement, and meanings of these
terms will be illustrated in corresponding parts of the
description. Furthermore, the present disclosure should not be
understood only through the terms used, but also through meanings
of each term.
[0072] Firstly, as shown in FIGS. 1 to 4, an electric air pump
according to one embodiment of the present disclosure is
illustrated. The electric air pump 100 shown in FIGS. 1 to 4 mainly
includes: a first air pump 101, a switch driving device 102, an air
pressure sensor 149, a central control unit 103 and a first housing
104.
[0073] The first air pump 101 is configured to charge air into or
discharge air from an inflatable body (e.g., an airbed).
[0074] The switch driving device 102 is connected to the first air
pump 101 and is adapted to drive a switching between two or more
air passages.
[0075] The air pressure sensor 149 is in communication with the
inflatable body for detecting an internal pressure value of the
inflatable body.
[0076] The central control unit 103 is connected with the first air
pump 101, the switch driving device 102 and the air pressure sensor
149. The central control unit 103 is adapted to send a driving
signal to drive the switch driving device 102 to activate the
switching between the air passages, and send a starting signal or a
stop signal to the first air pump 101 according to the internal
pressure value of the inflatable body detected by the air pressure
sensor 149 and a predetermined inflation pressure value for
activating or stopping the first air pump 101.
[0077] The first air pump 101, the air pressure sensor 149 and the
central control unit 103 are arranged inside the first housing 104.
As shown in FIG. 1, the first housing 104 is arranged with a panel
105 thereon, wherein the panel 105 covers one side of the first
housing 104. The panel 105 is arranged with a first vent hole 106
thereon.
[0078] In addition, the panel 105 further includes a first input
unit. The first input unit is connected to the central control unit
103. The first input unit may be provided with at least one of an
inflating signal input device, a deflating signal input device and
a stop signal input device. In particular, the inflating signal
input device is used for sending an inflating signal to the central
control unit 103; the deflating signal input device is used for
sending deflating signal to the central control unit 103; and the
stop signal input device is used for sending a stop signal to the
central control unit 103.
[0079] For example, in the embodiment as shown in FIGS. 1 and 3,
the first input unit includes a first inflating signal input
device: 107-1, a second inflating signal input device 107-2, a
third inflating signal input device 107-3, which respectively
correspond to different predetermined inflation pressure values,
and a deflating signal input device 107-4. As an example, when any
one of the four input devices is pressed for the first time, a
corresponding inflating signal or a deflating signal will be sent
to the central control unit 103, and when the input device is
pressed once again, a corresponding stop signal is generated. Of
course, an additional stop signal input device is also appropriate
for the present disclosure.
[0080] In addition, even not shown in the drawings, the electric
air pump in the present disclosure may include an inflator pressure
input device for manually setting an inflation pressure value. The
inflation pressure input device is provided with at least one
pressure setting button and a switch button. Wherein, the at least
one pressure setting button may be a keypad with numbers from 0 to
9 thereon for inputting the predetermined pressure value, or may be
a keypad with plus and minus thereon for respectively indicating
increasing or decreasing a pressure value.
[0081] Even in the embodiment as shown in FIGS. 1 and 3, the first
input unit is realized by way of multiple buttons, other
embodiments of the present disclosure may use a first touch screen
to realize the first input unit. That is to say, an input interface
and an input keypad may be displayed on the first input unit for
facilitating users operation.
[0082] In some embodiments, the central control unit 103 may
further include a main control unit 103-1 and an input control unit
103-2. The main control unit 103-1 is arranged inside a driving
cavity and is connected to the first air pump 101, the switch
driving device 102 and the air pressure sensor 149. The input
control unit 103-2 is connected to the main control unit 103-1 and
the first input unit.
[0083] The electric air pump 100 may further include a first
display unit arranged on the panel 105. The first display unit is
connected to the central control unit 103 and is adapted to receive
a display signal generated by the central control unit 103. For
example, in the embodiment as shown in FIGS. 1 and 3, the first
display unit may be a display lamp 134 arranged behind the first
inflating signal input device 107-1, the second inflating signal
input device 107-2, the third inflating signal input device 107-3
and the deflating signal input device 107-4 which are transparent
or semitransparent, as shown in FIG. 3. Or, the first display unit
may be realized by way of an electronic display screen or a second
touch screen. It should be noted that, in some embodiments of the
present disclosure, the second touch screen and the first touch
screen may be a common component.
[0084] Now switching to FIGS. 5 to 7, detailed structures of the
first air pump and the switch driving device are illustrated.
[0085] In one aspect, according to the embodiment as shown in FIGS.
5 to 7, the first air pump 101 further includes: a fan blade cover
108, an impeller 109 (referring to FIG. 8) and a motor 110.
[0086] The fan blade cover 108 is connected to the first housing
104 and separates the cavity of the first housing 104 into a fan
blade cavity and a driving cavity which is in communicate with
external space. The fan blade cover 108 is arranged with a first
air inlet 111 and a first air outlet 143. The impeller 109 is
arranged inside the fan blade cavity. The motor 110 is arranged
inside the driving cavity and is arranged on the fan blade cover
108, and the motor 110 is connected to the central control unit
103. A rotary shaft of the motor 110 passes through the first air
inlet 111 and is connected to the impeller 109. The switch driving
device 102 is connected to the first air outlet 143. Preferably,
the motor 110 may be a variable speed motor which can implement a
normal inflating process in high speed and implement an air
supplementing process in low speed, like the way as will be
illustrated below.
[0087] As one example, the air pressure sensor 149 is arranged
inside the driving cavity and is in communicate with the inflatable
body via a pressure-measuring air tube 112 (referring to FIGS. 2 to
4). In this example, the pressure-measuring air tube 112 has one
end connected to the air pressure sensor 149, and another end
connected to a pressure measuring hole 142 arranged on the first
housing 104, wherein the pressure measuring hole 142 is in
communication with the inflatable body.
[0088] As another example, the air pressure sensor 149 may be
arranged inside the driving cavity. A probe 150 of the air pressure
sensor 149 is arranged inside the driving cavity and is in
communication with the pressure measuring hole 142 positioned on
the first housing 104, wherein the pressure measuring hole 142 is
in communication with the inflatable body. Or, the probe 150 of the
air pressure sensor 149 is positioned at the pressure measuring
hole 142, or is in communication with the inflatable body via the
pressure-measuring tube 112 whose two ends are respectively
connected to the probe 150 and the pressure measuring hole 142.
[0089] In addition, the first housing 104 is further arranged with
a second vent hole 123 (referring to FIG. 11) which is in
communication with the inflatable body, wherein a one-way valve 118
is arranged at the second vent hole 123. Functions of the second
vent hole 123 will be illustrated in detail hereinafter in
combination with FIGS. 8 to 10.
[0090] In another aspect, according to the embodiment as shown in
FIGS. 5 to 7, 14 and 15, the switch driving device 102 is arranged
inside the driving cavity, and the switch driving device 102 may
include a motor drive unit 102-1 and an air passage switch device
102-2.
[0091] Wherein, the motor drive unit 102-1 is connected to the
central control unit 103, so that the central control unit 103 is
adapted to send a starting signal to activate the motor 128. The
air passage switch device 102-2 is connected to a first air outlet
143 of the first air pump 101 and is in communication with a first
vent hole 106 of the panel 105 and the second vent hole 123 of the
first housing 104. The motor drive unit 102-1 drives the air
passage switch device 102-2 to activate the switching between the
air passages, wherein the air passages include an inflation air
passage, a deflating air passage and a closed air passage.
[0092] Preferably, the switch driving device 102 may further
include at least one position signal generating device 113. The
position signal generating device 113 is arranged inside the
driving cavity and is connected to the central control unit 103,
and the position signal generating device 113 is configured to be
triggered by the air passage switch device 102-2 to send a position
signal to the central control unit 103.
[0093] In the embodiment as shown in FIGS. 5 to 7, 14 and 15, the
position signal generating device 113 may include a first position
signal generating device 113-1, a second position signal generating
device 113-2 and a third position signal generating device 113-3.
The first position signal generating device 113-1 is configured to
be triggered by the air passage switch device 102-2, when the air
passage switch device 102-2 is switched to the inflation air
passage, to generate a first position signal and send the same to
the central control unit 103. The second position signal generating
device 113-2 is configured to be triggered by the air passage
switch device 102-2, when the air passage switch device 102-2 is
switched to the deflating air passage, to generate a second
position signal and send the same to the central control unit 103.
The third position signal generating device 113-3 is configured to
be triggered by the air passage switch device 102-2, when the air
passage switch device 102-2 is switched to the closed air passage,
to generate a third position signal and send the same to the
central control unit 103. The first, the second or the third
position signal generating device 113-1 to 113-3 as described above
is a microswitch (in the present embodiment). Certainly, the first,
the second or the third position signal generating device may be a
photoelectric switch, or a reed switch, etc.
[0094] In addition, as shown in FIGS. 5 to 7, 14 and 15, the air
passage switch device 102-2 may include an outer pipe 114 and an
inner pipe 115. The outer pipe 114 is in communication with the
second vent hole 123 of the first housing 104 and is connected to
an air outlet 143 of the fan blade cover 108. The inner pipe 115 is
adapted to move axially and fitted rotatably in the outer pipe 114.
A first end of the inner pipe 115 is in communication with the
first vent hole 106 of the panel 105. The motor drive unit 102-1
activates the switching between the air passages through driving
the inner pipe 115.
[0095] Specifically, in the embodiment as shown in FIGS. 8 to 10,
the outer pipe 114 may further include: a first opening 201
positioned at a first end of the outer pipe 114 (the inner pipe 115
is arranged inside the outer pipe 114 via the first opening 201), a
second opening 202 positioned at a second end of the outer pipe 114
(the second opening 202 is connected to the second vent hole 123),
a third opening 203 arranged on a pipe wall of the outer pipe 114
(the third opening 203 is in communication with the driving
cavity), a fourth opening 204 positioned on the pipe wall of the
outer pipe 114 (the fourth opening 204 aligns axially to the third
opening 203 and is in communication with the driving cavity), and
an air inlet passage 200 connected to the first air outlet 143 of
the fan blade cover 108.
[0096] The inner pipe 115 may further include: a fifth opening 205
positioned at the first end of the inner pipe 115, a sixth opening
206 positioned at a second end of the inner pipe 115 and in
communication with the second vent hole, a seventh opening 207
positioned on the pipe wall of the inner piper 115, an eighth
opening 208 located on the pipe wall of the inner pipe 115 opposite
to the seventh opening 207, and a spacer 151 arranged inside the
inner pipe 115. Wherein, the inner pipe 115 is partially and
movably sheathed on an outer side of a vent pipe 148 via the fifth
opening 105. The spacer 151 is arranged inside the inner pipe 115
and divides the interior of the inner pipe 115 into an upper room
and a lower room isolated from each other. The seventh opening 207
and the eighth opening 208 are respectively arranged on two sides
of the spacer 151. When the third opening 203 corresponds to the
seventh opening 207 and the eighth opening 208 corresponds to the
air inlet passage 200, the air passage switch device 102-2 switches
to the inflation air passage. When the fourth opening 204
corresponds to the eighth opening 208 and the seventh opening 207
corresponds to the air inlet passage 200, the air passage switch
device 102-2 switches to the deflating air passage. When the
seventh opening 207 does not correspond to the third opening 203
and the air inlet passage 200, and the eighth opening 208 does not
correspond to the fourth opening 204 and the air inlet passage 200,
the air passage switch device 102-2 switches to the closed air
passage.
[0097] Back to FIGS. 5 to 7, 14 and 15, in the preferable
embodiment as shown, the inner pipe 115 may further include a first
transmission gear 125, a first bump 126 and a second bump 127. The
first transmission gear 125 is arranged on an outside of the first
end of the inner pipe 115. The first bump 126 is arranged on the
outside of the first end of the inner pipe 115 for triggering the
third position signal generating device 113-3 when the inner pipe
115 rotates. The second bump 127 is arranged on the outside of the
first end of the inner pipe 115 and at a position opposite to the
first bump 126 for triggering the first position signal generating
device 113-1 or the second position signal generating device 113-2
when the inner pipe 115 rotates.
[0098] In the preferable embodiment as shown in FIGS. 5 to 7, 14
and 15, the motor drive unit 102-1 may further include: a driving
motor 128, a second transmission gear 129 and a motor stand
130.
[0099] The second transmission gear 129 is connected to a rotary
shaft of the driving motor 128 and fitted with the first
transmission gear 125. The motor stand 130 is connected to the
outer pipe 114, and the driving motor 128 is mounted on the motor
stand 130. The driving motor 128 drives the first transmission gear
125 via the second transmission gear 129 so that the inner pipe 115
rotates within the outer pipe 114.
[0100] In addition, the outer pipe 114 may include a slideway 116,
and the inner pipe may correspondingly include a sliding block 117,
as shown in FIG. 7. The slideway 116 is arranged on the pipe wall
of the outer pipe 114 and has an arc shape which is high in the
middle and low at both ends. The sliding block 117 is arranged on
the outer surface of the inner pipe 115. The sliding block 117 is
arranged to slide within the slideway 116 so that the inner pipe
115 rotates while axially moves.
[0101] When rotates the inner pipe 115 to make the sliding block
117 move to a first end of the slideway 116, the inner pipe 115
axially moves along a direction towards the second vent hole 123,
the third opening 203 corresponds to the seventh opening 207 and
the eighth opening 208 corresponds to the inlet air passage 200,
the air passage switch device 102-2 switches to the inflation air
passage, and the spacer 151 opens the one-way valve 118 at the same
time, as shown in FIG. 8.
[0102] When rotates the inner pipe 115 to make the sliding block
117 move to a second end of the slideway 116, the inner pipe 115
axially moves along the direction towards the second vent hole 123,
the fourth opening 204 corresponds to the eighth opening 208 and
the seventh opening 207 corresponds to the air inlet passage 200,
the air passage switch device 102-2 switches to the deflating air
passage, and the inner pipe 115 opens the one-way valve 118, as
shown in FIG. 9.
[0103] When the sliding block 117 moves to the arc shaped bottom of
the slideway 116, the inner pipe 115 axially moves along a
direction away from the second vent hole 123, the inner pipe 115
releases the force imposed onto the one-way valve 118, the air
passage switch device 102-2 switches to the closed air passage, and
the one-way valve 118 is closed for blocking air flowing between
the inflatable body and the outer space, as shown in FIG. 10.
[0104] Now switching to FIG. 11, an exploded diagram of the one-way
valve according to one embodiment is illustrated. Wherein, the
one-way valve 118 may include a valve plate 119, a valve rod 120, a
support frame 121 and a spring 122. The valve plate 119 is used for
covering the cover the second vent hole 123. The valve plate 119 is
provided with a seal ring. The valve rod 120 is connected to the
valve plate 119, and the valve rod 120 is provided at an end with a
position limiting element 155. The support frame 121 is arranged
inside the second vent hole 123, and the valve rod 120 passes
through a hole of the support frame 121 and is adapted to move
axially. The spring 122 is sheathed on the outer side of the valve
rod 120 between the position limiting element 155 and the support
frame 121, so that the valve plate 119 closes the second vent hole
123.
[0105] When the inner pipe 115 axially moves along the direction
towards the second vent hole 123, the spacer 151 of the inner pipe
115 pushes the valve rod 120 to make the valve plate 119 move
axially, so that the second vent hole 123 is opened.
[0106] In addition, when the inner pipe 115 axially moves along the
direction away from the second vent hole 123, the spacer 151 of the
inner pipe 115 releases the force imposed onto the one-way valve
118, the valve plate 119 covers the second vent hole 123 due to an
elastic force of the spring 122.
[0107] Preferably, in the embodiment as shown in FIG. 11, in order
to protect the one-way valve 118, the first housing 103 may further
include a protection cover 124 covering the second vent hole
123.
[0108] As another aspect of the present embodiment, the electric
air pump 100 may implement control through a mobile terminal. In
this embodiment, the electric air pump 100 may include a first
wireless communication module (not shown) in communication
connection with the central control unit 103 and a mobile terminal
(not shown) adapted to implement remote control.
[0109] The mobile terminal may be provided with a second input unit
and a second wireless communication module in communication
connection with the first wireless communication module. The second
input unit may be in communication connection with the central
control unit 103 via the second wireless communication module and
the first wireless communication module. The first wireless
communication module and the second wireless communication module
may be a WIFI module, a Bluetooth module, an infrared module, a
second generation mobile communication module, a third generation
mobile communication module or a fourth generation mobile
communication module.
[0110] Similar to the first input unit as discussed above, the
second input unit may at least be provided with at least one of an
inflating signal input device, a deflating signal input device and
a stop signal input device. The inflating signal input device is
used for sending an inflating signal to the central control unit
103; the deflating signal input device is used for sending a
deflating signal to the central control unit 103; and the stop
signal input device is used for sending a stop signal to the
central control unit 103. For example, the second input unit may
further include a first inflating signal input device, a second
inflating signal input device and a third inflating signal input
device respectively corresponding to three different pressure
values, and a manually operated inflation pressure input device
adapted to manually set a pressure value via the mobile terminal
and send the same to the central control unit.
[0111] In addition, the mobile terminal may further include a
second display unit. The second display unit is in communication
connection with the central control unit 103 via the second
wireless communication module and the first wireless communication
module, and is adapted to receive a display signal generated by the
central control unit 103.
[0112] As such, the user can implement control to the electric air
pump 100 via the second input unit of the mobile terminal.
[0113] As another aspect of the present embodiment, the electric
air pump 100 may further include multiple auxiliary functional
units. For example, the functional units may include, but not
limited to, a temperature controller and a heating unit adapted to
be mounted on the inflatable body, an external audio unit, an
external lighting unit, and/or an external interface, etc. In this
embodiment, the functional unit is adapted to be connected to the
central control unit 103 and receive a control signal from the
central control unit 103. The first input unit further includes a
functional unit signal input device, wherein the first input unit
sends a control signal for the functional unit to the central
control unit 103 via the functional unit signal input device.
Similarly, in the embodiment with the additional mobile terminal,
the second input unit of the mobile terminal may also have a
functional unit signal input device.
[0114] As another aspect of the present disclosure, the electric
air pump 100 may further include a second air pump 131 for
supplementing air for the inflatable body, as shown in FIGS. 3 and
12.
[0115] The second air pump 131 is connected to the central control
unit 103, and further includes: a second air inlet (not shown) and
a second air outlet 152. The second air inlet is adapted to allow
air from the external space to enter the second air pump 131, and
the second air outlet 152 is in communication with the inflatable
body.
[0116] At least a first end of a shock absorber 144 is connected to
the second air pump 131. A first mounting frame 147 is connected to
the first housing, and a second end of the shock absorber 144 is
connected to the first mounting frame 147.
[0117] After the internal pressure value of the inflatable body
reaches a predetermined pressure value, the central control unit
103 sends an activating signal to the second air pump 131 if the
air pressure sensor 149 detects that the internal pressure of the
inflatable body reaches a predetermined air supplement pressure
value. When the air pressure sensor 149 detects that the internal
pressure of the inflatable body reaches the predetermined inflation
pressure value once again, a stop signal will be sent to the second
air pump 131. The predetermined air supplement pressure value is
smaller than or equal to the predetermined inflation pressure
value.
[0118] As an example, as shown in FIG. 3, the second air pump 131
is arranged inside the first housing 104, for example inside the
driving cavity of the first housing 104. The second air pump 131
and the first air pump 101 are isolated by a bracket 136. The
second air outlet 152 is in communication with the inflatable body
via an air supplement pipe 146. The air supplement pipe 146 has one
end connected to the second air outlet 152, and another end
connected to an air supplement port 141 positioned on the first
housing 104. In this embodiment, the second air pump 131 is further
arranged with the one-way valve 118, for blocking air in the
inflatable body flowing to the external space after the second air
pump 131 stops. The one-way valve 118 is connected to the air
supplement pipe 146.
[0119] As another example, as shown in FIG. 12, the second air pump
131 may be arranged independent from the first housing 104. In this
example, a second housing 132 may be further disposed. The second
housing 132 is a box-shaped cavity provided with a cavity opening.
The second air pump 131 is arranged inside the second housing 132.
In addition, the cavity opening on the second housing 132 may be
covered by a second panel 133. Preferably, the second air pump 131
is a silent diaphragm pump, so as to reduce noise of the second air
pump 131 during work.
[0120] In addition, at least one shock absorber 144 connected to
the second air pump 131 may be further disposed. The shock absorber
144 may be arranged between the second air pump 131 and the first
housing 104, and with at least the first end being connected to the
second air pump 131. In addition, a second mounting frame is
connected to the second housing 132, and a second end of the shock
absorber 144 is connected to the second mounting frame.
[0121] Switching to FIG. 13, a line-controlled electric air pump is
illustrated. In this embodiment, a controller 153 is further
configured. The controller 153 is configured with a first input
unit, the first input unit has a first inflating signal input
device 107-1, a second inflating signal input device 107-2, a third
inflating signal input device 107-3 and a deflating signal input
device 107-4. As an example, when any one of the four input devices
is pressed for the first time, a corresponding inflating signal or
deflating signal will be respectively sent to the central control
unit 103, and when the input device is pressed once again, then a
corresponding stop signal will be generated. Certainly, in the
present disclosure, a stop signal input device may be independently
disposed. The controller 153 may include an input control unit
connected to the central control unit 103 via wire 156. In some
embodiment, the input control unit may be arranged inside a housing
of the controller 153.
[0122] Although the present disclosure has been disclosed above
with reference to preferred embodiments thereof, it should be
understood by those skilled in the art that various changes and
modifications may be made without departing from the spirit or
scope of the disclosure. Accordingly, the present disclosure covers
changes and modifications made to the present disclosure that fall
into scopes defined by the claims and equivalent technical
solutions thereof.
* * * * *