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.

Description

FIELD OF THE INVENTION

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

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.

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.

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.

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

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.

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

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:

FIGS. 1A and 1B are schematic perspective views illustrating a slim-type gas transporting device of prior art;

FIG. 2A is a schematic perspective view illustrating the slim-type gas transporting device of the present disclosure;

FIG. 2B is an exploded view illustrating the slim-type gas transporting device of the present disclosure;

FIG. 2C is a bottom view illustrating the slim-type gas transporting device of the present disclosure;

FIG. 2D is a schematic perspective view illustrating the base plate of the present disclosure;

FIG. 3A is an exploded view illustrating the gas pump of the present disclosure;

FIG. 3B is another exploded view illustrating the gas pump of the present disclosure from a different perspective;

FIG. 4A is a schematic cross-sectional view illustrating the gas pump of the present disclosure;

FIGS. 4B to 4D schematically illustrate the operation steps of the gas pump of the present disclosure;

FIG. 5A is a schematic perspective view illustrating the circular truncated cone plug of the present disclosure;

FIG. 5B is a side view illustrating the circular truncated cone plug of the present disclosure;

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 illustrating the structure circled in FIG. 6A;

FIG. 6C schematically illustrates the inhaling path of the slim-type gas transporting device of the present disclosure;

FIG. 6D is a partial enlarged view illustrating the structure circled in FIG. 6C;

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

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.