U.S. patent application number 11/502529 was filed with the patent office on 2008-02-14 for off-load reduced input power energy saving low noise air vacuum cleaner.
Invention is credited to Tai-Her Yang.
Application Number | 20080034532 11/502529 |
Document ID | / |
Family ID | 45789195 |
Filed Date | 2008-02-14 |
United States Patent
Application |
20080034532 |
Kind Code |
A1 |
Yang; Tai-Her |
February 14, 2008 |
Off-load reduced input power energy saving low noise air vacuum
cleaner
Abstract
An off-load reduced input power energy saving low noise air
vacuum cleaner by detecting the operation status of the cleaner to
control the size of the electricity inputted to an air pump drive
motor, or exercise the control of power delivery or power cut off;
normal rated voltage being inputted when the cleaner is in normal
working status; or the power outputted to the air pump drive motor
being reduced or cut off when the cleaning tool of the cleaner
clears away from its working area to render the cleaner in full
load operation status as were a blower to increase both noise level
and power consumption for reduced noise level and energy
saving.
Inventors: |
Yang; Tai-Her; (Si-Hu Town,
TW) |
Correspondence
Address: |
BACON & THOMAS
625 Slaters Lane-4th Floor
Alexandria
VA
22314-1176
US
|
Family ID: |
45789195 |
Appl. No.: |
11/502529 |
Filed: |
August 11, 2006 |
Current U.S.
Class: |
15/319 |
Current CPC
Class: |
A47L 9/2831 20130101;
Y02B 40/00 20130101; A47L 9/2842 20130101; A47L 9/2878 20130101;
Y02B 40/82 20130101; A47L 9/2805 20130101 |
Class at
Publication: |
15/319 |
International
Class: |
A47L 5/00 20060101
A47L005/00 |
Claims
1. An off-load reduced input power energy saving low noise air
vacuum cleaner by detecting the operation status of the cleaner to
control the size of the electricity inputted to an air pump drive
motor, or exercise the control of power delivery or power cut off;
accordingly, normal rated voltage is inputted when the cleaner is
in normal working status; or the power outputted to the air pump
drive motor is reduced or cut off when the cleaning tool of the
cleaner clears away from its working area to render the cleaner in
full load operation status as were a blower to increase both noise
level and power consumption for achieving low noise level and
energy saving purposes; the off-load reduced input power energy
saving low noise air vacuum cleaner of the present invention may
rely upon AC city power, or DC power, or a source unit of
rechargeable batter for its input source; and the off-load reduced
input power energy saving low noise air vacuum cleaner of the
present invention while being provided with the power cord,
rechargeable battery source unit, operation switch, and fluid pump
for vacuum cleaning, dust collection bag and other mechanism,
casing and associate units and equipment related to the vacuuming
operation is adapted with an electric controlled unit corresponding
to the operation status of the air vacuum cleaner.
2. The off-load reduced input power energy saving low noise air
vacuum cleaner as claimed in claim 1, wherein the modes of
interacting control between the electric controlled unit and the
source end include an active electric controlled unit comprised of
having an impedance unit is connected in series with a power source
and an air pump drive motor for executing active control of the
power transported to the air pump drive motor of the air vacuum
cleaner, and is essentially comprised of: an air pump drive motor
102 of the air vacuum cleaner: depending on the source available,
an AC or DC series excitation motor, shunt excitation motor,
compound excitation motor, or ring header type of brush motors
including shunt excitation motor with magnetic field of permanent
magnet; or brushless motor of permanent magnet, magnetic resistance
motor, cage rotor induction motor, slip ring induction motor that
is capable of synchronous or asynchronous operation to drive the
air pump of the air vacuum cleaner; and an impedance Unit 101:
connected in series with the source and the air pump drive motor
102 of the air vacuum cleaner, essentially comprised of a capacitor
impedance unit for executing active control; alternatively, the
impedance unit 101 for active control unit may be comprised of a
resistance device or a positive coefficient resistance device
(PTC), or inductive device; or the impedance unit 101 is comprised
of any one or multiple of the same or different devices described
herein connected in series, parallel, or series-parallel; the input
end of the impedance unit 101 may be related to AC or DC power from
city power socket, or to a DC power supplied from a rechargeable
battery type of source installation as required so to cause the
impedance unit 101 to rise voltage drop between two ends to
actively drop the end voltage of the air pump drive motor of the
air vacuum motor for reducing the electric power when the load of
the air pump drive motor 102 increases and the amperage also
increase while the cleaning tool of the air vacuum cleaner clears
away from its work area to indicate off-load status.
3. The off-load reduced input power energy saving low noise air
vacuum cleaner as claimed in claim 1, wherein the modes of
interacting control between the electric controlled unit and the
source end include a passive electric controlled unit disposed
between the input source end and the air pump drive motor of the
air vacuum cleaner to function as a passive electric controlled
unit; and feedback detector is provided to control the electric
controlled unit to execute passive control of the power transported
to the air pump drive motor of the air vacuum cleaner; the air pump
drive motor of the air vacuum cleaner is controlled by the electric
controlled unit in the following modes: controling the current
transported to the air pump drive motor to maintain as a rated or
limit current output; or controling the voltage transported to the
air pump drive motor of the air vacuum cleaner; or controling the
source to supply or cut off the power to the air pump drive motor
of the air vacuum cleaner; or controling to switch the tapping of
the magnetic filed winding of the series excitation ring header
type of motor if the air pump drive motor of the air vacuum cleaner
relates to a series excitation ring header type of motor so to
change the rpm of the air pump drive motor of the air vacuum
cleaner; a feedback detection unit may be further provided to the
off-load reduced input power energy saving low noise air vacuum
cleaner of the present invention to detect the operation status of
the air vacuum cleaner, thus to control the electric controlled
unit functioning as a passive control unit for further control of
the operation of the air pump drive motor 102 of the air vacuum
cleaner; and said air vacuum cleaner is essentially comprised of:
the air pump drive motor 102: a series excitation motor, shunt
excitation motor, compound excitation motor, or ring header type of
brush motors including shunt excitation motor with magnetic field
of permanent magnet driven by AC or DC source; or brushless motor
of permanent magnet, magnetic resistance motor, cage rotor
induction motor, slip ring induction motor that is capable of
synchronous or asynchronous operation may be selected to drive the
air pump of the air vacuum cleaner; and an electric controlled unit
103: comprised of a electro-mechanical device or solid state
electronic device of the prior art to be disposed at where between
the source and the air pump drive motor 102 of the air vacuum
cleaner for subject to the control by a feedback detection unit
104; accordingly, when the air vacuum cleaner is in its normal work
status, the normal rated voltage is inputted; and during the
off-load status when the cleaning tool of the air vacuum cleaner
clears away from its work area, the power supply to the air pump
drive motor 102 is either reduced or cut off for noise reduction
and power saving purposes; the input end of the electric controlled
unit 103 may be related to AC or DC power from city power socket or
a DC source from a rechargeable type of source unit as required;
and the output end of the electric controlled unit 103 may be
related to AC or DC power to control its output voltage and
amperage subject to the specification of the air pump drive motor
102 adapted, and further to control its voltage, amperage and
frequency if an AC or DC brushless motor is elected for the air
pump driver motor 102 of the air vacuum; and a feedback detection
unit 104: comprised of a motor load amperage detector 1041, or a
motor speed detector 1042, or a fluid pressure detector 1043, or a
fluid speed detector 1044 to produce detection signals related to
the operation status of the air vacuum cleaner, the detection
signal may be related to ON-OFF switch signal, analog signal,
digital signal or encoding signal to be transmitted to the electric
controlled unit 103 where the signal is compared with the settings
of the electric controlled unit 103; when the air vacuum is in its
normal work status, a normal rated voltage is inputted into the air
pump drive motor 102 of the air vacuum cleaner; and when the air
vacuum cleaner is in off-load status as the cleaning tool clears
away from its work area so to reduce the power supplied to the air
pump drive motor 102 of the air vacuum cleaner, thus to reduce the
speed of the air pump drive motor 102 of the air vacuum cleaner for
achieving reduced noise level and power-saving purposes; the
electric controlled unit 103 may provide the setup time difference
when adapted with a deferred response function to set the response
time of the electric controlled unit 103 for the duration of the
receiving of feedback signal until the execution of the control of
the power supplied to the air pump drive motor 102 of the air
vacuum cleaner; the deferred response function relates to an
optional function may be provided or not.
4. The off-load reduced input power energy saving low noise air
vacuum cleaner as claimed in claim 3, wherein a feedback detection
unit 104 is comprised of the motor load amperage detector 1041; the
load amperage feedback signals are provided for the control of the
power transported from the electric controlled unit 103 to the air
pump drive motor 102 of the air vacuum cleaner; when the air vacuum
is in its normal work status, a normal rated voltage is inputted;
and when the air vacuum cleaner is in off-load status as the
cleaning tool clears away from its work area so to reduce or cut
off the power supplied to the air pump drive motor 102 of the air
vacuum cleaner, thus to reduce the noise level and save power.
5. The off-load reduced input power energy saving low noise air
vacuum cleaner as claimed in claim 3, wherein a feedback detection
unit 104 is comprised of a motor speed detector 1042; the motor
speed feedback signals are provided for the control of the power
transported from the electric controlled unit 103 to the air pump
drive motor 102 of the air vacuum cleaner; when the air vacuum is
in its normal work status, a normal rated voltage is inputted; and
when the air vacuum cleaner is in off-load status as the cleaning
tool clears away from its work area so to reduce or cut off the
power supplied to the air pump drive motor 102 of the air vacuum
cleaner, thus to reduce the noise level and save power.
6. The off-load reduced input power energy saving low noise air
vacuum cleaner as claimed in claim 5, wherein the air pump drive
motor 102 of the air vacuum cleaner relates to a series excitation
ring header type of motor, and the air pump drive series excitation
ring header type of motor 1021 of the air vacuum cleaner is adapted
with the feedback detection unit 104 comprised of the motor speed
detector 1042 to directly switch the control of the tapping of the
magnetic filed winding from the air pump drive series excitation
ring header type of motor 1021 of the air vacuum cleaner or through
the control of the electric controlled unit 103 by the motor speed
detector 1042; when the air vacuum cleaner is at its normal work
status, the power is supplied to a higher speed tapping 411 of the
winding of magnetic field of the air pump drive series excitation
ring header type of motor of the air vacuum cleaner; and when the
air vacuum cleaner is in its off-load status with its cleaning tool
clears away from the work area, the power is supplied to a lower
speed tapping 412 of the winding of magnetic field of the air pump
drive series excitation ring header type of motor of the air vacuum
cleaner so to reduce the power transported to the air pump series
excitation ring head type of motor 1021 or the power transported
thereto is cut off.
7. The off-load reduced input power energy saving low noise air
vacuum cleaner as claimed in claim 3, wherein a feedback detection
unit 104 is comprised of a fluid pressure detector 1043 disposed at
the inlet or outlet of the fluid to produce feedback signals for
the control of power transported to the air pump drive motor 102 of
the air vacuum cleaner from the electric controlled unit 103; when
the air vacuum cleaner is at its normal work status, normal rated
voltage is inputted; and when the air vacuum cleaner is in its
off-load status with the cleaning tool clears away from the work
area, the power supplied to the air pump driver motor 102 of the
air vacuum cleaner is reduced or cut off for achieving the purposes
of reduced noise level and energy saving.
8. The off-load reduced input power energy saving low noise air
vacuum cleaner as claimed in claim 7, wherein the air pump drive
motor 102 of the air vacuum cleaner relates to a series excitation
ring header type of motor, and the air pump drive series excitation
ring header type of motor 1021 of the air vacuum cleaner is adapted
with the feedback detection unit 104 comprised of the fluid
pressure detector 1043 at the inlet or outlet of the fluid to
directly switch the control of the tapping of the magnetic filed
winding from the air pump drive series excitation ring header type
of motor 1021 of the air vacuum cleaner or through the control of
the electric controlled unit 103 by the fluid pressure detector
1043; when the air vacuum cleaner is at its normal work status, the
power is supplied to a higher speed tapping 411 of the winding of
magnetic field of the air pump drive series excitation ring header
type of motor of the air vacuum cleaner; and when the air vacuum
cleaner is in its off-load status with its cleaning tool clears
away from the work area, the power is supplied to a lower speed
tapping 412 of the winding of magnetic field of the air pump drive
series excitation ring header type of motor of the air vacuum
cleaner so to reduce the power transported to the air pump series
excitation ring head type of motor 1021 or the power transported
thereto is cut off.
9. The off-load reduced input power energy saving low noise air
vacuum cleaner as claimed in claim 3, wherein a feedback detection
unit 104 is comprised of the fluid speed detector 1044 to produce
feedback signals for the control of the power transported to the
air pump drive motor 102 of the air vacuum cleaner from the
electric controlled unit 103; when the air vacuum is in its normal
work status, a normal rated voltage is inputted; and when the air
vacuum cleaner is in off-load status as the cleaning tool clears
away from its work area so to reduce or cut off the power supplied
to the air pump drive motor 102 of the air vacuum cleaner, thus to
reduce the noise level and save power.
10. The off-load reduced input power energy saving low noise air
vacuum cleaner as claimed in claim 9, wherein the air pump drive
motor 102 of the air vacuum cleaner relates to a series excitation
ring header type of motor, and the air pump drive series excitation
ring header type of motor 1021 of the air vacuum cleaner is adapted
with the feedback detection unit 104 comprised of the fluid speed
detector 1044 at the inlet or outlet of the fluid to directly
switch the control of the tapping of the magnetic filed winding
from the air pump drive series excitation ring header type of motor
1021 of the air vacuum cleaner or through the control of the
electric controlled unit 103 by the fluid speed detector 1044; when
the air vacuum cleaner is at its normal work status, the power is
supplied to a higher speed tapping 411 of the winding of magnetic
field of the air pump drive series excitation ring header type of
motor of the air vacuum cleaner; and when the air vacuum cleaner is
in its off-load status with its cleaning tool clears away from the
work area, the power is supplied to a lower speed tapping 412 of
the winding of magnetic field of the air pump drive series
excitation ring header type of motor of the air vacuum cleaner so
to reduce the power transported to the air pump series excitation
ring head type of motor 1021 or the power transported thereto is
cut off.
11. The off-load reduced input power energy saving low noise air
vacuum cleaner as claimed in claim 1, wherein a work status
detection switch e.g. a contact dynamo-electric switch 1045 or a
non-contact approximate switch 1046 is further disposed at where
between the fluid suction inlet of the air vacuum cleaner and its
work area, the off-load reduced input power energy saving low noise
air vacuum cleaner of the present invention to control the voltage
transported to the air pump driver motor 102 from the electric
controlled unit 103; when the air vacuum cleaner is in its normal
work status, the normal rated voltage is inputted to drive the air
pump drive motor 102 of the air vacuum cleaner; and when the air
vacuum cleaner is in its off-load status with the cleaning tool
clears away from the work area, the power transported to the air
pump drive motor 102 of the air vacuum cleaner is reduced or cut
off for reducing noise level and for energy-saving purposes; or the
direct switch is executed by the work status detection switch to
lower the speed of the air pump drive motor 102 of the air vacuum
cleaner, or to cut off the power transported to the air pump drive
motor 102 of the air vacuum cleaner; or the switch is executed by
the electric controlled unit 103 to lower the speed of the air pump
drive motor 102 of the air vacuum cleaner, or to cut off the power
transported to the air pump drive motor 102 of the air vacuum
cleaner.
12. The off-load reduced input power energy saving low noise air
vacuum cleaner as claimed in claim 11, wherein a contact
dynamo-electric switch 1045 is disposed at where between the fluid
suction inlet of the air vacuum cleaner and its work area; and when
the air vacuum is in its normal work status, a normal rated voltage
is inputted; and when the air vacuum cleaner is in off-load status
as the cleaning tool clears away from its work area so to reduce or
cut off the power supplied to the air pump drive motor 102 of the
air vacuum cleaner, thus to reduce the noise level and save
power.
13. The off-load reduced input power energy saving low noise air
vacuum cleaner as claimed in claim 12, wherein the air pump drive
motor 102 of the air vacuum cleaner relates to a series excitation
ring header type of motor, and the air pump drive series excitation
ring header type of motor 1021 of the air vacuum cleaner operates
in conjunction with the feedback detection unit 104 comprised of
the contact dynamo-electric switch 1045 at where between the fluid
suction inlet of the air vacuum cleaner and its work area to
directly switch the control of the tapping of the magnetic filed
winding from the air pump drive series excitation ring header type
of motor 1021 of the air vacuum cleaner or through the control of
the electric controlled unit 103 by the contact dynamo-electric
switch 1045; when the air vacuum cleaner is at its normal work
status, the power is supplied to a higher speed tapping 411 of the
winding of magnetic field of the air pump drive series excitation
ring header type of motor of the air vacuum cleaner; and when the
air vacuum cleaner is in its off-load status with its cleaning tool
clears away from the work area, the power is supplied to a lower
speed tapping 412 of the winding of magnetic field of the air pump
drive series excitation ring header type of motor of the air vacuum
cleaner so to reduce the power transported to the air pump series
excitation ring head type of motor 1021 or the power transported
thereto is cut off.
14. The off-load reduced input power energy saving low noise air
vacuum cleaner as claimed in claim 11, wherein an optical, static,
or ultrasonic non-contact approximately switch 1046 is disposed at
where between the fluid suction inlet of the air vacuum cleaner and
its work area; when the air vacuum is in its normal work status, a
normal rated voltage is inputted; and when the air vacuum cleaner
is in off-load status as the cleaning tool clears away from its
work area so to reduce or cut off the power supplied to the air
pump drive motor 102 of the air vacuum cleaner, thus to reduce the
noise level and save power.
15. The off-load reduced input power energy saving low noise air
vacuum cleaner as claimed in claim 14, wherein the air pump drive
motor 102 of the air vacuum cleaner relates to a series excitation
ring header type of motor, and the air pump drive series excitation
ring header type of motor 1021 of the air vacuum cleaner is adapted
with the feedback detection unit 104 comprised of the non-contact
approximate switch 1046 at where between the fluid suction inlet of
the air vacuum cleaner and its work area to directly switch the
control of the tapping of the magnetic filed winding from the air
pump drive series excitation ring header type of motor 1021 of the
air vacuum cleaner or through the control of the electric
controlled unit 103 by the non-contact approximate switch 1046;
when the air vacuum cleaner is at its normal work status, the power
is supplied to a higher speed tapping 411 of the winding of
magnetic field of the air pump drive series excitation ring header
type of motor of the air vacuum cleaner; and when the air vacuum
cleaner is in its off-load status with its cleaning tool clears
away from the work area, the power is supplied to a lower speed
tapping 412 of the winding of magnetic field of the air pump drive
series excitation ring header type of motor of the air vacuum
cleaner so to reduce the power transported to the air pump series
excitation ring head type of motor 1021 or the power transported
thereto is cut off.
Description
BACKGROUND OF THE INVENTION
[0001] (a) Field of the Invention
[0002] The present invention is related to an air vacuum cleaner,
and more particularly to an off-load reduced input power energy
saving low noise air vacuum cleaner, having disposed an electric
controlled unit between input source and air pump drive motor of
the cleaner to input normal rated voltage when the cleaner is in
normal working status; and to either reduce the power outputted to
the air pump drive motor or cut off the power source to reduce
noise level and save energy when the cleaning tool clears away from
the its working area during off-load status.
[0003] (b) Description of the Prior Art
[0004] The conventional air vacuum cleaner usually idles when the
cleaning tool of the cleaner stays away from its working area, that
is, the cleaner turns into a full load operation status as it were
a blower to result in increased load and the power of the
electricity outputted to an air pump drive motor is also increased
to produce higher noise level and waste electricity.
SUMMARY OF THE INVENTION
[0005] The primary purpose of the present invention is to provide
an off-load reduced input power energy saving low noise air vacuum
cleaner by detecting the operation status of the cleaner to control
the size of the electricity inputted to an air pump drive motor, or
exercise the control of power delivery or power cut off;
accordingly, normal rated voltage is inputted when the cleaner is
in normal working status; or the power outputted to the air pump
drive motor is reduced or cut off when the cleaning tool of the
cleaner clears away from its working area to render the cleaner in
full load operation status as were a blower to increase both noise
level and power consumption for achieving low noise level and
energy saving purposes.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] FIG. 1 is a circuit block chart of a preferred embodiment of
the present invention, wherein an impedance unit connected in
series with a power source and an air pump drive motor is provided
to control the air pump drive motor.
[0007] FIG. 2 is a circuit block chart of another preferred
embodiment yet of the present invention, wherein a feedback
detector is provided to control the air pump driving motor.
[0008] FIG. 3 is the first circuit block chart of the present
invention showing that a feedback detector is provided to control
an electric controlled unit.
[0009] FIG. 4 is the second circuit block chart showing that a
feedback detector is provided to control the electric controlled
unit.
[0010] FIG. 5 is a circuit block chart showing another preferred
embodiment yet of the present invention, wherein detection signals
from a motor rpm detector are operated to switch the variable
windings of the air pump drive motor of the air vacuum cleaner.
[0011] FIG. 6 is the third circuit block chart showing that a
feedback detector is provided to control the electric controlled
unit.
[0012] FIG. 7 is a circuit block chart showing another preferred
embodiment yet of the present invention, wherein detection signals
from a fluid pressure detector of air inlet or air outlet are
operated to switch an air pump drive series excitation ring header
type motor variable windings of the air vacuum cleaner.
[0013] FIG. 8 is the fourth circuit block chart showing that a
feedback detector is provided to control the electric controlled
unit.
[0014] FIG. 9 is a circuit block chart showing another preferred
embodiment yet of the present invention, wherein detection signals
from a fluid speed detector of air inlet or air outlet are operated
to switch an air pump drive series excitation ring header type
motor variable windings of the air vacuum cleaner.
[0015] FIG. 10 is the first circuit block chart of the present
invention showing that a work status detection switch is provided
to control the operation of the air pump drive motor of the air
vacuum cleaner.
[0016] FIG. 11 is a circuit block chart of another preferred
embodiment yet of the present invention, wherein a trigger-off
dynamo-electric switch is provided to switch the air pump drive
series excitation ring header type more variable windings of the
air vacuum cleaner.
[0017] FIG. 12 is the second circuit block chart of the present
invention showing that a work status detection switch is provided
to control the operation of the air pump drive motor of the air
vacuum cleaner.
[0018] FIG. 13 is a circuit block chart of another preferred
embodiment yet of the present invention, wherein a non-contact
approximate switch detection switch is provided to switch the air
pump drive series excitation ring header type more variable
windings of the air vacuum cleaner.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0019] The off-load reduced input power energy saving low noise air
vacuum cleaner of the present invention may rely upon AC city
power, or DC power, or a source unit of rechargeable batter for its
input source; the off-load reduced input power energy saving low
noise air vacuum cleaner of the present invention while being
provided with the power cord, rechargeable battery source unit,
operation switch, and fluid pump for vacuum cleaning, dust
collection bag and other mechanism, casing and associate units and
equipment related to the vacuuming operation is adapted with an
electric controlled unit corresponding to the operation status of
the air vacuum cleaner; the modes of interacting control between
the electric controlled unit and the source end include:
[0020] (1) Active electric controlled unit: an electric controlled
unit is comprised of having an impedance unit is connected in
series with a power source and an air pump drive motor for
executing active control of the power transported to the air pump
drive motor of the air vacuum cleaner; and
[0021] (2) Passive electric controlled unit: an electric controlled
unit is disposed between the input source end and the air pump
drive motor of the air vacuum cleaner to function as a passive
electric controlled unit; and feedback detector is provided to
control the electric controlled unit to execute passive, control of
the power transported to the air pump drive motor of the air vacuum
cleaner; the air pump drive motor of the air vacuum cleaner is
controlled by the electric controlled unit in the following modes:
[0022] Controlling the current transported to the air pump drive
motor to maintain as a rated or limit current output; or [0023]
Controlling the voltage transported to the air pump drive motor of
the air vacuum cleaner; or [0024] Controlling the source to supply
or cut off the power to the air pump drive motor of the air vacuum
cleaner; or [0025] Controlling to switch the tapping of the
magnetic filed winding of the series excitation ring header type of
motor if the air pump drive motor of the air vacuum cleaner relates
to a series excitation ring header type of motor so to change the
rpm of the air pump drive motor of the air vacuum cleaner.
[0026] FIG. 1 is a circuit block chart of a preferred embodiment of
the present invention, wherein an impedance unit connected in
series with a power source and an air pump drive motor is provided
to control the air pump drive motor; the preferred embodiment
illustrated in FIG. 1 is essentially comprised of: [0027] An air
pump drive motor 102 of the air vacuum cleaner: depending on the
source available, an AC or DC series excitation motor, shunt
excitation motor, compound excitation motor, or ring header type of
brush motors including shunt excitation motor with magnetic field
of permanent magnet; or brushless motor of permanent magnet,
magnetic resistance motor, cage rotor induction motor, slip ring
induction motor that is capable of synchronous or asynchronous
operation to drive the air pump of the air vacuum cleaner; and
[0028] An impedance Unit 101: connected in series with the source
and the air pump drive motor 102 of the air vacuum cleaner,
essentially comprised of a capacitor impedance unit for executing
active control; alternatively, the impedance unit 101 for active
control unit may be comprised of a resistance device or a positive
coefficient resistance device (PTC), or inductive device; or the
impedance unit 101 is comprised of any one or multiple of the same
or different devices described herein connected in series,
parallel, or series-parallel; siad input end of the impedance unit
101 may be related to AC or DC power from city power socket, or to
a DC power supplied from a rechargeable battery type of source
installation as required so to cause the impedance unit 101 to rise
voltage drop between two ends to actively drop the end voltage of
the air pump drive motor of the air vacuum motor for reducing the
electric power when the load of the air pump drive motor 102
increases and the amperage also increase while the cleaning tool of
the air vacuum cleaner clears away from its work area to indicate
off-load status.
[0029] A feedback detection unit may be further provided to the
off-load reduced input power energy saving low noise air vacuum
cleaner of the present invention to detect the operation status of
the air vacuum cleaner, thus to control the electric controlled
unit functioning as a passive control unit for further control of
the operation of the air pump drive motor 102 of the air vacuum
cleaner; FIG. 2 is a circuit block chart of another preferred
embodiment yet of the present invention, wherein a feedback
detector is provided to control the air pump driving motor.
[0030] The preferred embodiment illustrated in FIG. 2 is
essentially comprised of: [0031] The air pump drive motor 102: a
series excitation motor, shunt excitation motor, compound
excitation motor, or ring header type of brush motors including
shunt excitation motor with magnetic field of permanent magnet
driven by AC or DC source; or brushless motor of permanent magnet,
magnetic resistance motor, cage rotor induction motor, slip ring
induction motor that is capable of synchronous or asynchronous
operation may be selected to drive the air pump of the air vacuum
cleaner; and [0032] An electric controlled unit 103: comprised of a
electro-mechanical device or solid state electronic device of the
prior art to be disposed at where between the source and the air
pump drive motor 102 of the air vacuum cleaner for subject to the
control by a feedback detection unit 104; accordingly, when the air
vacuum cleaner is in its normal work status, the normal rated
voltage is inputted; and during the off-load status when the
cleaning tool of the air vacuum cleaner clears away from its work
area, the power supply to the air pump drive motor 102 is either
reduced or cut off for noise reduction and power saving purposes;
the input end of the electric controlled unit 103 may be related to
AC or DC power from city power socket or a DC source from a
rechargeable type of source unit as required; and the output end of
the electric controlled unit 103 may be related to AC or DC power
to control its output voltage and amperage subject to the
specification of the air pump drive motor 102 adapted, and further
to control its voltage, amperage and frequency if an AC or DC
brushless motor is elected for the air pump driver motor 102 of the
air vacuum; and [0033] A feedback detection unit 104: comprised of
a motor load amperage detector 1041 (as illustrated in FIG. 3), or
a motor speed detector 1042 (as illustrated in FIGS. 4 and 5), or a
fluid pressure detector 1043 (as illustrated in FIGS. 6 and 7), or
a fluid speed detector 1044 (as illustrated in FIGS. 8 and 9) to
produce detection signals related to the operation status of the
air vacuum cleaner, the detection signal may be related to ON-OFF
switch signal, analog signal, digital signal or encoding signal to
be transmitted to the electric controlled unit 103 where the signal
is compared with the settings of the electric controlled unit 103;
when the air vacuum is in its normal work status, a normal rated
voltage is inputted into the air pump drive motor 102 of the air
vacuum cleaner; and when the air vacuum cleaner is in off-load
status as the cleaning tool clears away from its work area so to
reduce the power supplied to the air pump drive motor 102 of the
air vacuum cleaner, thus to reduce the speed of the air pump drive
motor 102 of the air vacuum cleaner for achieving reduced noise
level and power-saving purposes; said electric controlled unit 103
may provide the setup time difference when adapted with a deferred
response function to set the response time of the electric
controlled unit 103 for the duration of the receiving of feedback
signal until the execution of the control of the power supplied to
the air pump drive motor 102 of the air vacuum cleaner; the
deferred response function relates to an optional function may be
provided or not.
[0034] The control by the feedback detection unit 104 for the air
pump drive motor 102 of the air vacuum cleaner is described
below:
[0035] FIG. 3 is the first circuit block chart of the present
invention showing that a feedback detector is provided to control
an electric controlled unit.
[0036] In the preferred embodiment of the present invention
illustrated in FIG. 3, the feedback detection unit 104 is comprised
of the motor load amperage detector 1041 and the load amperage
feedback signals are provided for the control of the power
transported from the electric controlled unit 103 to the air pump
drive motor 102 of the air vacuum cleaner; when the air vacuum is
in its normal work status, a normal rated voltage is inputted; and
when the air vacuum cleaner is in off-load status as the cleaning
tool clears away from its work area so to reduce or cut off the
power supplied to the air pump drive motor 102 of the air vacuum
cleaner, thus to reduce the noise level and save power.
[0037] FIG. 4 is the second circuit block chart showing that a
feedback detector is provided to control the electric controlled
unit.
[0038] The preferred embodiment of the present invention
illustrated in FIG. 4, the feedback detection unit 104 is comprised
of the motor speed detector 1042 and motor speed feedback signals
are produced for the control of the power transported from the
electric controlled unit 103 to the air pump drive motor 102 of the
air vacuum cleaner; when the air vacuum is in its normal work
status, a normal rated voltage is inputted; and when the air vacuum
cleaner is in off-load status as the cleaning tool clears away from
its work area so to reduce or cut off the power supplied to the air
pump drive motor 102 of the air vacuum cleaner, thus to reduce the
noise level and save power.
[0039] If the air pump drive motor 102 of the air vacuum cleaner
relates to a series excitation ring header type of motor, and the
air pump drive series excitation ring header type of motor 1021 of
the air vacuum cleaner is adapted with the feedback detection unit
104 comprised of the motor speed detector 1042; then as illustrated
in FIG. 5, the motor speed detector 1042 directly switches the
control of the tapping of the magnetic filed winding from the air
pump drive series excitation ring header type of motor 1021 of the
air vacuum cleaner or through the control of the electric
controlled unit 103 by the motor speed detector 1042; when the air
vacuum cleaner is at its normal work status, the power is supplied
to a higher speed tapping 411 of the winding of magnetic field of
the air pump drive series excitation ring header type of motor of
the air vacuum cleaner; and when the air vacuum cleaner is in its
off-load status with its cleaning tool clears away from the work
area, the power is supplied to a lower speed tapping 412 of the
winding of magnetic field of the air pump drive series excitation
ring header type of motor of the air vacuum cleaner so to reduce
the power transported to the air pump series excitation ring head
type of motor 1021 or the power transported thereto is cut off.
[0040] FIG. 5 is a circuit block chart showing another preferred
embodiment yet of the present invention, wherein detection signals
from a motor rpm detector are operated to switch the variable
windings of the air pump drive motor of the air vacuum cleaner.
[0041] FIG. 6 is the third circuit block chart showing that a
feedback detector is provided to control the electric controlled
unit.
[0042] In the preferred embodiment of the present invention
illustrated in FIG. 6, the feedback detection unit 104 is comprised
of a fluid pressure detector 1043 disposed at the inlet or outlet
of the fluid to produce feedback signals for the control of power
transported to the air pump drive motor 102 of the air vacuum
cleaner from the electric controlled unit 103; when the air vacuum
cleaner is at its normal work status, normal rated voltage is
inputted; and when the air vacuum cleaner is in its off-load status
with the cleaning tool clears away from the work area, the power
supplied to the air pump driver motor 102 of the air vacuum cleaner
is reduced or cut off for achieving the purposes of reduced noise
level and energy saving.
[0043] If the air pump drive motor 102 of the air vacuum cleaner
relates to a series excitation ring header type of motor, and the
air pump drive series excitation ring header type of motor 1021 of
the air vacuum cleaner is adapted with the feedback detection unit
104 comprised of the fluid pressure detector 1043 at the inlet or
outlet of the fluid; then as illustrated in FIG. 7, the fluid
pressure detector 1043 directly switches the control of the tapping
of the magnetic filed winding from the air pump drive series
excitation ring header type of motor 1021 of the air vacuum cleaner
or through the control of the electric controlled unit 103 by the
fluid pressure detector 1043; when the air vacuum cleaner is at its
normal work status, the power is supplied to a higher speed tapping
411 of the winding of magnetic field of the air pump drive series
excitation ring header type of motor of the air vacuum cleaner; and
when the air vacuum cleaner is in its off-load status with its
cleaning tool clears away from the work area, the power is supplied
to a lower speed tapping 412 of the winding of magnetic field of
the air pump drive series excitation ring header type of motor of
the air vacuum cleaner so to reduce the power transported to the
air pump series excitation ring head type of motor 1021 or the
power transported thereto is cut off.
[0044] FIG. 7 is a circuit block chart showing another preferred
embodiment yet of the present invention, wherein detection signals
from a fluid pressure detector of air inlet or air outlet are
operated to switch an air pump drive series excitation ring header
type motor variable windings of the air vacuum cleaner.
[0045] FIG. 8 is the fourth circuit block chart yet showing that a
feedback detector is provided to control the electric controlled
unit.
[0046] In the preferred embodiment of the present invention as
illustrated in FIG. 8, the feedback detection unit 104 is comprised
of the fluid speed detector 1044 to produce feedback signals for
the control of the power transported to the air pump drive motor
102 of the air vacuum cleaner from the electric controlled unit
103; when the air vacuum is in its normal work status, a normal
rated voltage is inputted; and when the air vacuum cleaner is in
off-load status as the cleaning tool clears away from its work area
so to reduce or cut off the power supplied to the air pump drive
motor 102 of the air vacuum cleaner, thus to reduce the noise level
and save power.
[0047] If the air pump drive motor 102 of the air vacuum cleaner
relates to a series excitation ring header type of motor, and the
air pump drive series excitation ring header type of motor 1021 of
the air vacuum cleaner is adapted with the feedback detection unit
104 comprised of the fluid speed detector 1044 at the inlet or
outlet of the fluid; then as illustrated in FIG. 9, the fluid speed
detector 1044 directly switches the control of the tapping of the
magnetic filed winding from the air pump drive series excitation
ring header type of motor 1021 of the air vacuum cleaner or through
the control of the electric controlled unit 103 by the fluid speed
detector 1044; when the air vacuum cleaner is at its normal work
status, the power is supplied to a higher speed tapping 411 of the
winding of magnetic field of the air pump drive series excitation
ring header type of motor of the air vacuum cleaner; and when the
air vacuum cleaner is in its off-load status with its cleaning tool
clears away from the work area, the power is supplied to a lower
speed tapping 412 of the winding of magnetic field of the air pump
drive series excitation ring header type of motor of the air vacuum
cleaner so to reduce the power transported to the air pump series
excitation ring head type of motor 1021 or the power transported
thereto is cut off.
[0048] FIG. 9 is a circuit block chart showing another preferred
embodiment yet of the present invention, wherein detection signals
from a fluid speed detector of air inlet or air outlet are operated
to switch an air pump drive series excitation ring header type
motor variable windings of the air vacuum cleaner.
[0049] A work status detection switch, e.g., a contact
dynamo-electric switch 1045 or a non-contact approximate switch
1046 is further disposed at where between the fluid suction inlet
of the air vacuum cleaner and its work area, the off-load reduced
input power energy saving low noise air vacuum cleaner of the
present invention to control the voltage transported to the air
pump driver motor 102 from the electric controlled unit 103; when
the air vacuum cleaner is in its normal work status, the normal
rated voltage is inputted to drive the air pump drive motor 102 of
the air vacuum cleaner; and when the air vacuum cleaner is in its
off-load status with the cleaning tool clears away from the work
area, the power transported to the air pump drive motor 102 of the
air vacuum cleaner is reduced or cut off for reducing noise level
and for energy-saving purposes; or the direct switch is executed by
the work status detection switch to lower the speed of the air pump
drive motor 102 of the air vacuum cleaner, or to cut off the power
transported to the air pump drive motor 102 of the air vacuum
cleaner; or the switch is executed by the electric controlled unit
103 to lower the speed of the air pump drive motor 102 of the air
vacuum cleaner, or to cut off the power transported to the air pump
drive motor 102 of the air vacuum cleaner.
[0050] The mode of the control of the operation of the air pump
drive motor of the air vacuum cleaner by the work status detection
switch is described hereinafter:
[0051] FIG. 10 is the first circuit block chart of the present
invention showing that a work status detection switch is provided
to control the operation of the air pump drive motor of the air
vacuum cleaner.
[0052] The preferred embodiment of the present invention
illustrated in FIG. 10 has a contact dynamo-electric switch 1045 at
where between the fluid suction inlet of the air vacuum cleaner and
its work area; when the air vacuum is in its normal work status, a
normal rated voltage is inputted; and when the air vacuum cleaner
is in off-load status as the cleaning tool clears away from its
work area so to reduce or cut off the power supplied to the air
pump drive motor 102 of the air vacuum cleaner, thus to reduce the
noise level and save power.
[0053] If the air pump drive motor 102 of the air vacuum cleaner
relates to a series excitation ring header type of motor, and the
air pump drive series excitation ring header type of motor 1021 of
the air vacuum cleaner operates in conjunction with the feedback
detection unit 104 comprised of the contact dynamo-electric switch
1045 at where between the fluid suction inlet of the air vacuum
cleaner and its work area; then as illustrated in FIG. 11, the
contact dynamo-electric switch 1045 directly switches the control
of the tapping of the magnetic filed winding from the air pump
drive series excitation ring header type of motor 1021 of the air
vacuum cleaner or through the control of the electric controlled
unit 103 by the contact dynamo-electric switch 1045; when the air
vacuum cleaner is at its normal work status, the power is supplied
to a higher speed tapping 411 of the winding of magnetic field of
the air pump drive series excitation ring header type of motor of
the air vacuum cleaner; and when the air vacuum cleaner is in its
off-load status with its cleaning tool clears away from the work
area, the power is supplied to a lower speed tapping 412 of the
winding of magnetic field of the air pump drive series excitation
ring header type of motor of the air vacuum cleaner so to reduce
the power transported to the air pump series excitation ring head
type of motor 1021 or the power transported thereto is cut off.
[0054] FIG. 11 is a circuit block chart of another preferred
embodiment yet of the present invention, wherein a contact
dynamo-electric switch is provided to switch the air pump drive
series excitation ring header type more variable windings of the
air vacuum cleaner.
[0055] FIG. 12 is the second circuit block chart of the present
invention showing that a work status detection switch is provided
to control the operation of the air pump drive motor of the air
vacuum cleaner.
[0056] The preferred embodiment of the present invention as
illustrated in FIG. 12 has disposed an optical, static, or
ultrasonic non-contact approximately switch 1046 at where between
the fluid suction inlet of the air vacuum cleaner and its work
area; when the air vacuum is in its normal work status, a normal
rated voltage is inputted; and when the air vacuum cleaner is in
off-load status as the cleaning tool clears away from its work area
so to reduce or cut off the power supplied to the air pump drive
motor 102 of the air vacuum cleaner, thus to reduce the noise level
and save power.
[0057] If the air pump drive motor 102 of the air vacuum cleaner
relates to a series excitation ring header type of motor, and the
air pump drive series excitation ring header type of motor 1021 of
the air vacuum cleaner is adapted with the feedback detection unit
104 comprised of the non-contact approximate switch 1046 at where
between the fluid suction inlet of the air vacuum cleaner and its
work area; then as illustrated in FIG. 13, the non-contact
approximate switch 1046 directly switches the control of the
tapping of the magnetic filed winding from the air pump drive
series excitation ring header type of motor 1021 of the air vacuum
cleaner or through the control of the electric controlled unit 103
by the non-contact approximate switch 1046; when the air vacuum
cleaner is at its normal work status, the power is supplied to a
higher speed tapping 411 of the winding of magnetic field of the
air pump drive series excitation ring header type of motor of the
air vacuum cleaner; and when the air vacuum cleaner is in its
off-load status with its cleaning tool clears away from the work
area, the power is supplied to a lower speed tapping 412 of the
winding of magnetic field of the air pump drive series excitation
ring header type of motor of the air vacuum cleaner so to reduce
the power transported to the air pump series excitation ring head
type of motor 1021 or the power transported thereto is cut off.
[0058] FIG. 13 is a circuit block chart of another preferred
embodiment yet of the present invention, wherein a non-contact
approximate switch detection switch is provided to switch the air
pump drive series excitation ring header type more variable
windings of the air vacuum cleaner.
[0059] To sum up, an off-load reduced input power energy saving low
noise air vacuum cleaner of the present invention achieves reduced
noise level and energy saving purposes by reducing the power
transported to the air pump driver motor of the air vacuum cleaner
when it is in a off-load status and its cleaning tool clears away
from its work area by providing an active control unit, a passive
control unit and a feedback detection unit at where between the
input source and the air pump drive motor of the air vacuum
cleaner.
* * * * *