U.S. patent application number 17/399407 was filed with the patent office on 2022-04-21 for slim-type gas transporting device.
This patent application is currently assigned to Microjet Technology Co., Ltd.. The applicant listed for this patent is Microjet Technology Co., Ltd.. Invention is credited to Shih-Chang Chen, Yung-Lung Han, Yu-Sheng Hsu, Chi-Feng Huang, Chung-Wei Kao, Yang Ku, Wang-Ping Liao, Tsung-I Lin, Hao-Jan Mou.
Application Number | 20220120267 17/399407 |
Document ID | / |
Family ID | |
Filed Date | 2022-04-21 |
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United States Patent
Application |
20220120267 |
Kind Code |
A1 |
Mou; Hao-Jan ; et
al. |
April 21, 2022 |
SLIM-TYPE GAS TRANSPORTING DEVICE
Abstract
A slim-type gas transporting device is provided and includes a
base plate, a gas pump and a top covering. The base plate includes
a first surface, a second surface, an accommodation groove, an
outlet groove, a positioning portion, a ventilating hole, a
circular truncated cone plug, an inlet tube and an outlet tube. The
outlet groove includes an outlet channel in fluid communication
with the outlet tube. The positioning portion surrounds the
accommodation groove. The ventilating hole having a cone profile is
located on the positioning portion and includes an inlet end in
communication with the inlet tube and a ventilating end in
communication with the accommodation groove. The circular truncated
cone plug is accommodated in the ventilating hole. The gas pump is
disposed on the accommodation groove and covers the outlet groove.
The top covering is disposed on the positioning portion and covers
the accommodation groove.
Inventors: |
Mou; Hao-Jan; (Hsinchu,
TW) ; Kao; Chung-Wei; (Hsinchu, TW) ; Chen;
Shih-Chang; (Hsinchu, TW) ; Liao; Wang-Ping;
(Hsinchu, TW) ; Hsu; Yu-Sheng; (Hsinchu, TW)
; Huang; Chi-Feng; (Hsinchu, TW) ; Han;
Yung-Lung; (Hsinchu, TW) ; Lin; Tsung-I;
(Hsinchu, TW) ; Ku; Yang; (Hsinchu, TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Microjet Technology Co., Ltd. |
Hsinchu |
|
TW |
|
|
Assignee: |
Microjet Technology Co.,
Ltd.
Hsinchu
TW
|
Appl. No.: |
17/399407 |
Filed: |
August 11, 2021 |
International
Class: |
F04B 43/04 20060101
F04B043/04 |
Foreign Application Data
Date |
Code |
Application Number |
Oct 16, 2020 |
TW |
109136003 |
Claims
1. A slim-type gas transporting device comprising: a base plate
comprising: a first surface; a second surface opposite to the first
surface; an accommodation groove recessed from the first surface
and comprising an accommodation surface; an outlet groove recessed
from the accommodation surface and comprising an outlet channel; a
positioning portion protruded from the first surface and
surrounding the accommodation groove; a ventilating hole located on
the positioning portion and comprising an inlet end and a
ventilating end, wherein the ventilating end is in fluid
communication with the accommodation groove, and the ventilating
hole is tapered from the ventilating end to the inlet end; a
circular truncated cone plug accommodated in the ventilating hole
and fitted with the ventilating hole; an inlet tube in fluid
communication with the inlet end of the ventilating hole; and an
outlet tube in fluid communication with the outlet channel of the
outlet groove; a gas pump disposed on the accommodation surface of
the accommodation groove and covering the outlet groove; and a top
covering disposed on the positioning portion and covering the
accommodation groove.
2. The slim-type gas transporting device according to claim 1,
wherein the circular truncated cone plug comprises a first sealing
end and a second sealing end, wherein the first sealing end is
corresponding to the ventilating end of the ventilating hole, and
the second sealing end is corresponding to the inlet end of the
ventilating hole.
3. The slim-type gas transporting device according to claim 2,
wherein the circular truncated cone plug comprises a dome structure
disposed on the first sealing end.
4. The slim-type gas transporting device according to claim 3,
wherein the dome structure abuts the top covering.
5. The slim-type gas transporting device according to claim 3,
wherein the thickness of the dome structure is 0.15 mm.
6. The slim-type gas transporting device according to claim 2,
wherein the diameter of the first sealing end is in a range between
1 mm and 1.4 mm.
7. The slim-type gas transporting device according to claim 6,
wherein the diameter of the first sealing end is 1.2 mm.
8. The slim-type gas transporting device according to claim 6,
wherein the diameter of the second sealing end is in a range
between 0.8 mm and 0.9 mm.
9. The slim-type gas transporting device according to claim 8,
wherein the diameter of the second sealing end is 0.85 mm.
10. The slim-type gas transporting device according to claim 1,
wherein the positioning portion comprises at least one fixing hole,
and the top covering comprises at least one fixing column passing
through the at least one fixing hole.
11. The slim-type gas transporting device according to claim 1,
wherein the gas pump comprises: a gas inlet plate having at least
one gas inlet aperture, at least one convergence channel and a
convergence chamber, wherein the at least one gas inlet aperture is
disposed to inhale the gas, the at least one gas inlet aperture
correspondingly penetrates through the gas inlet plate and in fluid
communication with the at least one convergence channel, and the at
least one convergence channel is converged into the convergence
chamber, so that the gas inhaled through the at least one gas inlet
aperture is converged into the convergence chamber; a resonance
plate disposed on the gas inlet plate and having a central
aperture, a movable part and a fixed part, wherein the central
aperture is disposed at a center of the resonance plate and is
corresponding to the center of the convergence chamber of the gas
inlet plate, the movable part surrounds the central aperture and is
corresponding to the convergence chamber, and the fixed part
surrounds the movable part and is fixedly attached on the gas inlet
plate; and a piezoelectric actuator correspondingly disposed on the
resonance plate; wherein a chamber space is formed between the
resonance plate and the piezoelectric actuator, so that when the
piezoelectric actuator is driven, the gas introduced from the at
least one gas inlet aperture of the gas inlet plate is converged to
the convergence chamber through the at least one convergence
channel, and flows through the central aperture of the resonance
plate so as to produce a resonance effect with the movable part of
the resonance plate and the piezoelectric actuator to transport the
gas.
12. The slim-type gas transporting device according to claim 11,
wherein the piezoelectric actuator comprises: a suspension plate in
square-shape permitted to undergo a bending vibration; an outer
frame surrounding the suspension plate; at least one bracket
connected between the suspension plate and the outer frame to
provide an elastic support for the suspension plate; and a
piezoelectric element having a side, wherein a length of the side
of the piezoelectric element is less than or equal to that of the
suspension plate, and the piezoelectric element is attached on a
surface of the suspension plate, wherein when a voltage is applied
to the piezoelectric element, the suspension plate is driven to
undergo the bending vibration.
13. The slim-type gas transporting device according to claim 12,
wherein the gas pump further comprises a first insulation plate, a
conducting plate and a second insulation plate, and the gas inlet
plate, the resonance plate, the piezoelectric actuator, the first
insulation plate, the conducting plate and the second insulation
plate are stacked and assembled sequentially.
14. The slim-type gas transporting device according to claim 1,
wherein the circular truncated cone plug is made of an elastic
material.
15. The slim-type gas transporting device according to claim 14,
wherein the elastic material is a silicone material.
16. The slim-type gas transporting device according to claim 14,
wherein the elastic material is a rubber material.
Description
FIELD OF THE INVENTION
[0001] The present disclosure relates to a slim-type gas
transporting device, and more particularly to a slim-type gas
transporting device capable of avoiding the gas reflowing.
BACKGROUND OF THE INVENTION
[0002] With the rapid advancement of science and technology, the
application of gas transportation device tends to be more and more
diversified in industrial applications, biomedical applications,
healthcare, electronic cooling and so on, even in the wearable
devices that become popular recently. It is obviously that the
conventional pumps have gradually tended to miniaturize the
structure and maximize the flow rate thereof.
[0003] After the inflating process of the airbag is completed by a
conventional slim-type gas transporting device, gas reflowing
frequently occurs when the slim-type gas transporting device is
disabled. As a result, the gas pressure inside the airbag might be
insufficient. Therefore, there is a need of providing a solution to
avoid the gas reflowing when the slim-type gas transporting device
is disabled, so as to obviate the drawbacks encountered from the
prior arts.
[0004] Please refer to FIGS. 1A and 1B. FIGS. 1A and 1B are
schematic perspective views illustrating a slim-type gas
transporting device 200 of prior art. The slim-type gas
transporting device 200 includes a lower plate 201, a gas pump 202
and a top covering 203. The lower plate 201 includes an
accommodation area 2011, a ventilating hole 2012, a steel ball
2013, an inlet end 2014 and an outlet end 2015. The gas pump 202 is
disposed in the accommodation area 2011. The steel ball 2013 is
disposed in the ventilating hole 2012. The top covering 203 covers
the accommodation area 2011. When the gas pump 202 is enabled, the
gas in the accommodation area 2011 is transported toward the outlet
end 2015. Meanwhile, a negative pressure is generated in the
accommodation area 2011. As a result, the gas enters the
ventilating hole 2012 through the inlet end 2014 and pushes the
steel ball 2013 in the ventilating hole 2012 upwardly, so that the
gas can be transported constantly. When the gas pump 202 is
disabled, the gas in the accommodation area 2011 pushes the steel
ball 2013 into the ventilating hole 2012 so as to seal the
ventilating hole 2012.
[0005] In the prior art, the steel ball 2013 is utilized to avoid
the gas reflowing. However, when the steel ball 2013 moves inside
the ventilating hole 2012, contacts between the steel ball 2013 and
the ventilating hole 2012 led to friction and generate noise during
the movement of the steel ball 2013. Moreover, pre-processing
procedure is required for improving the air tightness between the
steel ball 2013 and the ventilating hole 2012 to achieve the
desired air-tight effect. Because of the miniaturization of the
slim-type gas transporting device, the pre-processing the
ventilating hole 2012 consumes much time and works. Furthermore,
the steel ball 2013 may fail to return to the original position due
to the situation such as the gas pressure, the gas flowing
direction or the tilt of the slim-type gas transporting device 200
and results in the gas reflowing. Therefore, there is still a need
of providing another solution to avoid the gas reflowing.
SUMMARY OF THE INVENTION
[0006] It is an object of the present disclosure to provide a
slim-type gas transporting device. By disposing a circular
truncated cone plug in the cone shaped ventilating hole tightly,
the effect of avoiding the gas reflowing can be achieved.
[0007] In accordance with an aspect of the present disclosure,
there is provided a slim-type gas transporting device. The
slim-type gas transporting device includes a base plate, a gas pump
and a top covering. The base plate includes a first surface, a
second surface, an accommodation groove, an outlet groove, a
positioning portion, a ventilating hole, a circular truncated cone
plug, an inlet tube and an outlet tube. The second surface is
opposite to the first surface. The accommodation groove is recessed
from the first surface and includes an accommodation surface. The
outlet groove is recessed from the accommodation surface and
includes an outlet channel. The positioning portion is protruded
from the first surface and surrounds the accommodation groove. The
ventilating hole is located on the positioning portion and includes
an inlet end and a ventilating end. The ventilating end is in fluid
communication with the accommodation groove, and the ventilating
hole is gradually shrunk from the ventilating end to the inlet end.
The circular truncated cone plug is accommodated in the ventilating
hole and is in fit with the ventilating hole. The inlet tube is in
fluid communication with the inlet end of the ventilating hole. The
outlet tube is in fluid communication with the outlet channel of
the outlet groove. The gas pump is disposed on the accommodation
surface of the accommodation groove and covers the outlet groove.
The top covering is disposed on the positioning portion and covers
the accommodation groove.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] The above contents of the present invention will become more
readily apparent to those ordinarily skilled in the art after
reviewing the following detailed description and accompanying
drawings, in which:
[0009] FIGS. 1A and 1B are schematic perspective views illustrating
a slim-type gas transporting device of prior art;
[0010] FIG. 2A is a schematic perspective view illustrating the
slim-type gas transporting device of the present disclosure;
[0011] FIG. 2B is an exploded view illustrating the slim-type gas
transporting device of the present disclosure;
[0012] FIG. 2C is a bottom view illustrating the slim-type gas
transporting device of the present disclosure;
[0013] FIG. 2D is a schematic perspective view illustrating the
base plate of the present disclosure;
[0014] FIG. 3A is an exploded view illustrating the gas pump of the
present disclosure;
[0015] FIG. 3B is another exploded view illustrating the gas pump
of the present disclosure from a different perspective;
[0016] FIG. 4A is a schematic cross-sectional view illustrating the
gas pump of the present disclosure;
[0017] FIGS. 4B to 4D schematically illustrate the operation steps
of the gas pump of the present disclosure;
[0018] FIG. 5A is a schematic perspective view illustrating the
circular truncated cone plug of the present disclosure;
[0019] FIG. 5B is a side view illustrating the circular truncated
cone plug of the present disclosure;
[0020] FIG. 6A is a schematic cross-sectional view illustrating the
slim-type gas transporting device taken along a section line A-A'
of FIG. 2C;
[0021] FIG. 6B is a partial enlarged view illustrating the
structure circled in FIG. 6A;
[0022] FIG. 6C schematically illustrates the inhaling path of the
slim-type gas transporting device of the present disclosure;
[0023] FIG. 6D is a partial enlarged view illustrating the
structure circled in FIG. 6C;
[0024] FIG. 6E is a schematic cross-sectional view illustrating the
slim-type gas transporting device taken along a section line B-B'
of FIG. 2C; and
[0025] FIG. 6F schematically illustrates the structure of the
slim-type gas transporting device of the present disclosure which
avoids the gas reflowing.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0026] The present invention will now be described more
specifically with reference to the following embodiments. It is to
be noted that the following descriptions of preferred embodiments
of this invention are presented herein for purpose of illustration
and description only. It is not intended to be exhaustive or to be
limited to the precise form disclosed.
[0027] Please refer to FIGS. 2A and 2B. A slim-type gas
transporting device 100 is provided and includes a base plate 1, a
gas pump 2 and a top covering 3. The gas pump 2 is accommodated in
the base plate 1, and then the top covering 3 is fixed on the base
plate 1.
[0028] Please refer to FIGS. 2C and 2D. The base plate 1 includes a
first surface 11, a second surface 12, an accommodation groove 13,
an outlet groove 14, a positioning portion 15, a ventilating hole
16, a circular truncated cone plug 17, an inlet tube 18, an outlet
tube 19, a first sidewall 1a, a second sidewall 1b, a third
sidewall 1c and a fourth sidewall 1d. The first surface 11 and the
second surface 12 are two surfaces opposite to each other. The
accommodation groove 13 is recessed from the first surface 11 and
includes an accommodation surface 131. The outlet groove 14 is
recessed from the accommodation surface 131 and includes a lateral
wall 141 and an outlet channel 142. The outlet channel 142 is
located on the lateral wall 141. The positioning portion 15 in
square shape is protruded from the first surface 11 and surrounds
the accommodation groove 13. The ventilating hole 16 is located on
the positioning portion 15 for the circular truncated cone plug 17
to accommodate therein, and includes an inlet end 161 and a
ventilating end 162. The ventilating end 162 is in fluid
communication with the accommodation groove 13. The inlet tube 18
is extended outwardly from the first sidewall 1a and is in fluid
communication with the inlet end 161 of the ventilating hole 16.
The outlet tube 19 is extended outwardly from the third sidewall 1c
opposite to the first sidewall 1a and is in fluid communication
with the outlet channel 142 of the outlet groove 14. The inlet tube
18 and the outlet tube 19 are spatially misaligned with each other.
Notably, the inlet tube 18 and the outlet tube 19 can be disposed
on the second sidewall 1b or the fourth sidewall 1d, but not
limited thereto.
[0029] As shown in FIG. 2B, in this embodiment, the gas pump 2 is
disposed on the accommodation surface 131 of the accommodation
groove 13 and covers the outlet groove 14. Please refer to FIGS. 3A
and 3B. In this embodiment, the gas pump 2 includes a gas inlet
plate 21, a resonance plate 22, a piezoelectric actuator 23, a
first insulation plate 24, a conducting plate 25 and a second
insulation plate 26, which are stacked on each other sequentially.
In this embodiment, the gas inlet plate 21 includes at least one
inlet aperture 21a, at least one convergence channel 21b and a
convergence chamber 21c. The at least one gas inlet aperture 21a is
disposed to inhale the gas. The at least one gas inlet aperture 21a
correspondingly penetrates through the gas inlet plate 21 into the
at least one convergence channel 21b, and the at least one
convergence channel 21b is converged into the convergence chamber
21c. Therefore, the gas inhaled through the at least one gas inlet
aperture 21a is converged into the convergence chamber 21c. The
number of the gas inlet apertures 21a is the same as the number of
the convergence channels 21b. In this embodiment, the numbers of
the gas inlet apertures 21a and the convergence channels 21b are
exemplified by four, respectively, but not limited thereto. The
four gas inlet apertures 21a penetrate through the gas inlet plate
21 into the four convergence channels 21b respectively, and the
four convergence channels 21b converge to the convergence chamber
21c.
[0030] Please refer to FIGS. 3A, 3B and 4A. The resonance plate 22
is attached to the gas inlet plate 21. The resonance plate 22 has a
central aperture 22a, a movable part 22b and a fixed part 22c. The
central aperture 22a is located at a center of the resonance plate
22 and is corresponding to the convergence chamber 21c of the gas
inlet plate 21. The movable part 22b surrounds the central aperture
22a and is corresponding to the convergence chamber 21c. The fixed
part 22c is disposed around the periphery of the resonance plate 22
and securely attached on the gas inlet plate 21.
[0031] Please refer to FIGS. 3A, 3B and 4A, again. The
piezoelectric actuator 23 is attached to the resonance plate 22 and
is corresponding in position to the resonance plate 22. The
piezoelectric actuator 23 includes a suspension plate 23a, an outer
frame 23b, at least one bracket 23c, a piezoelectric element 23d,
at least one clearance 23e and a bulge 23f. The suspension plate
23a is square-shaped because the square suspension plate 23a is
more power-saving than the circular suspension plate. Generally,
the consumed power of the capacitive load operated under the
resonance frequency would induce as the resonance frequency raised.
Since the resonance frequency of the square suspension plate 23a is
obviously lower than that of the circular square suspension plate,
the consumed power of the square suspension plate 23a would be
lesser. Therefore, the square suspension plate 23a utilized in the
present disclosure has the advantage of power-saving. In this
embodiment, the outer frame 23b is disposed around the periphery of
the suspension plate 23a, and at least one bracket 23c is connected
between the suspension plate 23a and the outer frame 23b for
elastically supporting the suspension plate 23a. The piezoelectric
element 23d has a side, and the length of the side of the
piezoelectric element 23d is less than or equal to that of the
suspension plate 23a. The piezoelectric element 23d is attached to
a surface of the suspension plate 23a. When a voltage is applied to
the piezoelectric element 23d, the suspension plate 23a is driven
to undergo the bending vibration. The at least one clearance 23e is
formed between the suspension plate 23a, the outer frame 23b and
the at least one bracket 23c for allowing the gas to flow through.
The bulge 23f is formed on a surface of the suspension plate 23a
opposite to the surface of the suspension plate 23a attached to the
piezoelectric element 23d. In this embodiment, the bulge 23f is
formed by an etching process on the suspension plate 23a.
Accordingly, the bulge 23f of the suspension plate 23a is
integrally formed and protrudes from the surface opposite to the
one that the piezoelectric element 23d is attached thereon, and
formed a convex structure.
[0032] Please refer to FIGS. 3A, 3B and 4A. In this embodiment, the
gas inlet plate 21, the resonance plate 22, the piezoelectric
actuator 23, the first insulation plate 24, the conducting plate 25
and the second insulation plate 26 are stacked and assembled
sequentially. A chamber space 27 is formed between the suspension
plate 23a and the resonance plate 22, and the chamber space 27 is
formed by filling a gap between the resonance plate 22 and the
outer frame 23b of the piezoelectric actuator 23 with a material,
such as a conductive adhesive, but not limited thereto. Therefore,
a specific depth between the resonance plate 22 and the suspension
plate 23a is maintained and formed as the chamber space 27, so as
to guide the gas to pass rapidly. In addition, since the resonance
plate 22 and the suspension plate 23a are maintained at a suitable
distance, the contact interference therebetween can be reduced,
thereby largely reducing the noise. In other embodiments, the
thickness of the conductive adhesive filled into the gap between
the resonance plate 22 and the outer frame 23b of the piezoelectric
actuator 23 can be reduced by increasing the height of the outer
frame 23b of the piezoelectric actuator 23. Therefore, the entire
assembling structure of gas pump 2 would not be indirectly
influenced by the hot-pressing temperature and the cooling
temperature, and avoiding the actual distance between the
suspension plate 23a and the resonance plate 22 of the chamber
space 27 being affected by the thermal expansion and contraction of
the filling material of the conductive adhesive, but is not limited
thereto. In addition, since the transportation effect of the gas
pump 2 is affected by the chamber space 27, it is very important to
maintain a constant chamber space 27, so as to provide a stable
transportation efficiency of the gas pump 2.
[0033] In order to understand the actuation steps of the gas pump
2, please refer to FIGS. 4B to 4D. Referring to FIG. 4B first, when
the piezoelectric element 23d of the piezoelectric actuator 23 is
deformed in response to an applied voltage, the suspension plate
23a is driven to displace in the direction away from the resonance
plate 22. In that, the volume of the chamber space 27 is increased,
a negative pressure is generated in the chamber space 27, and the
gas in the convergence chamber 21c is introduced into the chamber
space 27. At the same time, the resonance plate 22 is displaced
synchronously under the influence resonance effect, and thereby,
the volume of the convergence chamber 21c is increased.
Furthermore, a negative pressure state is generated in the
convergence chamber 21c since the gas in the convergence chamber
21c is introduced into the chamber space 27, and the gas is inhaled
into the convergence chamber 21c through the gas inlet apertures
21a and the convergence channels 21b. Then, as shown in FIG. 4C,
the piezoelectric element 23d drives the suspension plate 23a to
displace upwardly toward the resonance plate 22 to compress the
chamber space 27. Similarly, the resonance plate 22 is actuated and
displaced upwardly away from the suspension plate 23a under the
resonance effect of the suspension plate 23a, and compress the air
in the chamber space 27. Thus, the gas in the chamber space 27 is
further transmitted downwardly to pass through the clearances 23e
and achieves the effect of gas transportation. Finally, as shown in
FIG. 4D, when the suspension plate 23a resiliently moves back to an
initial state, the resonance plate 22 displaces downwardly toward
the suspension plate 23a due to its inertia momentum, and pushes
the gas in the chamber space 27 toward the clearances 23e.
Meanwhile, the volume of the convergence chamber 21c is increased.
Thus, the gas outside is continuously inhaled and passed through
the gas inlet apertures 21a and the convergence channels 21b, and
converged into the convergence chamber 21c. By repeating the
actuation steps illustrated in FIGS. 4B to 4D continuously, the gas
pump 2 can continuously transport the gas at high speed. The gas
enters the gas inlet apertures 21a, flows through a flow path
formed by the gas inlet plate 21 and the resonance plate 22 and
result in a pressure gradient, and then transported through the
clearances 23e, so as to achieve the operation of gas transporting
of the gas pump 2.
[0034] Please refer to FIGS. 5A and 5B. The circular truncated cone
plug 17 includes a sealing portion 171 and a dome structure 172.
The sealing portion 171 is in a circular truncated cone shape and
is in fit with the ventilating hole 16. The sealing portion 171
includes a first sealing end 171a and a second sealing end 171b.
The profile of the sealing portion 171 is gradually tapered from
the first sealing end 171a to the second sealing end 171b. The dome
structure 172 is disposed on the first sealing end 171a. In this
embodiment, the diameter of the first sealing end 171a is in a
range between 1 mm and 1.4 mm. The diameter of the second sealing
end 171b is in a range between 0.8 mm and 0.9 mm. In an embodiment,
the diameter of the first sealing end 171a is 1.2 mm, and the
diameter of the second sealing end 171b is 0.85 mm. In addition,
the circular truncated cone plug 17 is made of an elastic material,
such as a silicone material or a rubber material, but not limited
thereto.
[0035] Please refer to FIGS. 6A and 6B. FIG. 6A is a schematic
cross-sectional view illustrating the slim-type gas transporting
device taken along a section line A-A' of FIG. 2C. FIG. 6B is a
partial enlarged view of FIG. 6A illustrating the structures around
the ventilating hole 16. The gas pump 2 is accommodated in the
accommodation groove 13, and the top covering 3 covers the
accommodation groove 13. Thereby, a gas chamber 32 is formed
between the top covering 3 and the gas pump 2. The gas chamber 32
is in fluid communication with the ventilating hole 16. The sealing
portion 171 of the circular truncated cone plug 17 is accommodated
in the ventilating hole 16. The first sealing end 171a is
corresponding to and seals the ventilating end 162. The second
sealing end 171b is corresponding to the inlet end 161 and seals
the ventilating hole 16. The dome structure 172 abuts the top
covering 3 in an initial state and stays in an initial position. In
this embodiment, the thickness of the dome structure 172 is 0.15
mm, but not limited thereto.
[0036] Please refer to FIGS. 6C and 6D. FIG. 6C schematically
illustrates the inhaling path of the base plate 1 of the slim-type
gas transporting device 100. FIG. 6D is a partial enlarged view of
FIG. 6C illustrating the structures around the ventilating hole 16.
When the gas pump 2 is enabled, the gas inside the accommodation
groove 13 is drawn and transported downwardly to the outlet groove
14. As a result, a negative pressure state is generated in the
space of the accommodation groove 13. Thereafter, the gas outside
the slim-type gas transporting device 100 enters the slim-type gas
transporting device 100 through the inlet tube 18 of the base plate
1 and pushes the circular truncated cone plug 17 inside the
ventilating hole 16 upwardly. The dome structure 172 pushed by the
gas is abutting the top covering 3 and is compressed and deformed
(as shown in FIG. 6D). Thereby, the first sealing end 171a of the
circular truncated cone plug 17 is detached from the ventilating
end 162 of the ventilating hole 16, and the second sealing end 171b
is detached from the ventilating hole 16. Meanwhile, the gas flows
from the inlet tube 18 and the ventilating hole 16 into the inlet
end 161, flows into the ventilating end 162 through the gap 163
between the ventilating hole 16 and circular truncated cone plug
17, and then is transported into the accommodation groove 13.
[0037] Please refer to FIG. 6E. FIG. 6E is a schematic
cross-sectional view illustrating the slim-type gas transporting
device 100 taken along a section line B-B' of FIG. 2C. The gas is
continuously transported to the outlet groove 14 by the gas pump 2.
When the gas is transported to the outlet groove 14, the gas is
then transported to the outlet tube 19 through the outlet channel
142 and is discharged from the outlet tube 19, so as to complete
the gas transportation process.
[0038] Please refer to FIG. 6F. FIG. 6F schematically illustrates
the structure of the slim-type gas transporting device 100 of the
present disclosure which avoids the gas reflowing. While the gas
pump 2 is disabled, the gas pressure in the accommodation groove 13
is higher than the gas pressure outside the slim-type gas
transporting device 100, and the gas stop entering the slim-type
gas transporting device 100 through the inlet tube 18. Since the
gas stop entering the slim-type gas transporting device 100, the
force pushing on the circular truncated cone plug 17 by the gas is
vanished, and the dome structure 172 compressed and deformed
previously due to the gas pressure returns to the initial state
owing to the elasticity of circular truncated cone plug 17 per se,
and pushes the top covering 3 to back to its initial position.
Consequently, the sealing portion 171 of the circular truncated
cone plug 17 is pushed to the ventilating hole 16, the first
sealing end 171a seals the ventilating end 162, and the second
sealing end 171b seals the inlet end 161, thereby, the sealing
portion 171 is tightly attached to the ventilating hole 16 (as
shown in FIG. 6B). As a result, the gas is prevented from passing
through the ventilating hole 16 and reflowing into the inlet tube
18, so as to achieve the effect of avoiding the gas reflowing.
[0039] Furthermore, in this embodiment, the ventilating hole 16 is
tapered from the ventilating end 162 to the inlet end 161, so that
the profile of the ventilating hole 16 is a cone shape, namely a
funnel shape, for accommodating the circular truncated cone plug 17
therein. The slope angle of the cone shaped ventilating hole 16 is
in a range between 10 degrees and 14 degrees. In an embodiment, the
slope angle is 12 degrees. The diameter of the inlet end 161 is
0.68 mm and the diameter of the ventilating end 162 is 1.2 mm.
[0040] Please refer to FIGS. 1B and 6C. The positioning portion 15
of the base plate 1 includes at least one fixing hole 151. In this
embodiment, the number of fixing holes 151 is exemplified by three,
but not limited thereto. The top covering 3 includes at least one
fixing column 31. The number and the position of the fixing column
31 are corresponding to those of the fixing hole 151. The fixing
columns 31 pass through the corresponding fixing holes 151
respectively for positioning and fixing.
[0041] From the above descriptions, the present disclosure provides
a slim-type gas transporting device. Through disposing the circular
truncated cone plug in the funnel-shaped ventilating hole fit with
the circular truncated cone plug, the gas can pass through the gap
formed between the circular truncated cone plug and the ventilating
hole when the circular truncated cone plug is pushed to detach from
the ventilating hole by the gas pressure difference as the gas pump
is enabled, and enter the slim-type gas transporting device. When
the gas pump is disabled, the circular truncated cone plug returns
to the initial position and is tightly attached to the ventilating
hole due to the elasticity of the circular truncated cone plug per
se, thereby effectively avoiding the gas reflowing. The circular
truncated cone plug of the present invention can be replaced
through the elasticity of the dome structure, and quickly seal the
ventilating hole as the sealing portion of the circular truncated
cone plug is fit with the ventilating hole when the gas pump is
disabled, so as to prevent the problem of failing to return the
circular truncated cone plug.
[0042] While the disclosure has been described in terms of what is
presently considered to be the most practical and preferred
embodiments, it is to be understood that the disclosure needs not
be limited to the disclosed embodiment.
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