Fluid drive device

Abstract

The utility model belongs to the technical field of electronic equipment, especially electronic equipment heat dissipation, the utility model provides a kind of fluid driving device, comprising: upper shell, its surface is provided with air inlet hole;Base, it is formed with the receiving space with upper shell buckle, the bottom of base is provided with air outlet hole;Resonator structure, it is arranged in receiving space, and adjacent surface with upper shell and base all leave air passage gap;The resonator structure includes: elastomer, piezoelectric ceramic piece on elastomer, circuit board is provided on piezoelectric ceramic piece;The utility model is formed with integrated receiving space by upper shell and base buckle, resonator structure integrated FPCB circuit board, alternating voltage is provided by external driving circuit to make piezoelectric ceramic piece vibrate, to realize the driving gas flow effect, reduce additional wiring requirement, significantly reduce overall volume, reduce assembly complexity.

Description

Technical Field

[0001] This utility model belongs to the field of electronic equipment technology, specifically relating to heat dissipation of electronic equipment, and more particularly to fluid drive devices. Background Technology

[0002] With the rapid development of smart electronic devices (such as mobile phones, tablets, and smart wearable devices), more and more functions are integrated, the overall power consumption is increasing, and the requirements for heat dissipation are becoming more and more stringent.

[0003] In existing technologies, smart electronic devices typically use centrifugal fans for heat dissipation. However, existing centrifugal fans are relatively large, with the fan module occupying nearly 20% of the battery compartment space, resulting in a reduction of approximately one hour of battery life. This also requires a large amount of installation space to be reserved during the assembly of electronic devices, which contradicts the development trend of miniaturization and long battery life in smart electronic devices.

[0004] Therefore, the need to reserve a large amount of space in the design of the heat dissipation system directly affects the device's battery life, and this contradiction has become a technical problem that urgently needs to be solved in this field.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0006] This disclosure provides at least one fluid drive device to solve the technical problem that reserving too much space in the heat dissipation device would affect battery life.

[0007] In a first aspect, embodiments of this disclosure provide a fluid drive device, comprising: an upper shell having an air inlet on its surface; a base that is fastened to the upper shell to form a storage space, the bottom of the base having an air outlet; and a resonator structure disposed within the storage space, with air duct gaps provided between the resonator structure and the adjacent surfaces of the upper shell and the base; the resonator structure comprising: an elastic body with a piezoelectric ceramic sheet on it, and a circuit board disposed on the piezoelectric ceramic sheet; wherein the piezoelectric ceramic sheet is configured to deform the elastic body by high-frequency vibration, so that airflow is drawn in through the air inlet and discharged through the air outlet gap.

[0008] In one optional embodiment, the upper shell is provided with an upper boss facing the elastomer, and the base is provided with a lower boss facing the elastomer. The upper boss and the lower boss are adapted to compress and fix the elastomer.

[0009] In one optional embodiment, the base is provided with a pair of limiting posts facing the elastic body, the upper shell is provided with limiting holes adapted to the limiting posts, and the elastic body is provided with clearance holes adapted to the limiting posts; and the limiting holes are inverted trapezoidal cross sections; wherein the limiting posts are configured to pass through the clearance holes and the limiting holes in sequence to limit the elastic body.

[0010] In one alternative embodiment, one end of the elastomer is provided with a fixed end, which is connected to the base and the upper shell respectively.

[0011] In one alternative embodiment, raised platforms are evenly distributed on the side of the base away from the elastomer.

[0012] In one alternative embodiment, the elastomer is provided with an anti-backflow structure on the side facing the base.

[0013] In one alternative embodiment, the anti-backflow structure includes a first rectangular groove formed on the side of the elastomer facing the base.

[0014] In one alternative embodiment, the anti-backflow structure includes a metal sheet disposed on the side of the elastomer facing the base, and a second rectangular groove is formed on the surface of the metal sheet.

[0015] In one alternative embodiment, the anti-backflow structure includes a bending portion disposed on both sides of the elastomer and bent toward the base.

[0016] Secondly, this disclosure also provides a fluid drive device, including: an upper shell with an air inlet on its surface; a base that is fastened to the upper shell to form a storage space, and an air outlet at the bottom of the base; and a resonator structure disposed within the storage space, with air duct gaps between the resonator structure and the adjacent surfaces of the upper shell and the base; the resonator structure includes: an elastic body with a piezoelectric ceramic sheet on it, and a circuit board disposed on the piezoelectric ceramic sheet; a first rectangular groove is formed on the side of the elastic body facing the base, which is suitable for preventing gas backflow; wherein the piezoelectric ceramic sheet is configured to deform the elastic body by high-frequency vibration, so that airflow is drawn in from the air inlet and discharged from the air outlet through the air duct gap.

[0017] The beneficial effects of this utility model are as follows: This utility model provides a fluid driving device, which forms an integrated storage space by fastening the upper shell and the base. The resonator structure integrates an FPCB circuit board, and combined with the built-in layout of the resonator structure, the FPCB circuit board is connected to the positive and negative poles of the piezoelectric ceramic sheet respectively. An alternating voltage is provided by an external driving circuit to make the piezoelectric ceramic sheet vibrate, thereby driving the gas flow effect. This reduces the need for additional wiring, significantly reduces the overall size, and reduces assembly complexity. In addition, the noise generated by the vibration of the piezoelectric ceramic sheet is lower than the noise generated by the rotation of a centrifugal fan. The resonant frequency of the piezoelectric ceramic sheet can be programmably adjusted to automatically adapt to changes in air pressure, and the energy consumption is low.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A perspective view of the fluid drive device provided in the embodiments of this disclosure, in its unfolded state.

[0022] Figure 2 A perspective view of the fluid drive device provided in the embodiments of this disclosure, in its unfolded state.

[0023] Figure 3 A cross-sectional view of a fluid drive device provided in an embodiment of this disclosure;

[0024] Figure 4 This is a perspective view of the resonator structure provided in Embodiment 1 of this disclosure;

[0025] Figure 5 This is a perspective view of the resonator structure provided in Embodiment 2 of this disclosure;

[0026] Figure 6 This is a perspective view of the resonator structure provided in Embodiment 3 of this disclosure.

[0027] In the picture:

[0028] 1. Base; 11. Vent; 12. Lower boss; 13. Limiting post; 14. Raising platform;

[0029] 2. Resonator structure; 21. Elastomer; 22. Piezoelectric ceramic sheet; 23. FPCB circuit board; 24. Clearance hole; 25. Fixed end; 26. Anti-backflow structure; 261a. First rectangular groove; 261b. Metal sheet; 262b. Second rectangular groove; 261c. Bending part;

[0030] 3. Upper shell; 31. Air inlet; 32. Upper boss; 33. Limiting hole. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0033] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0034] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0035] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0036] Research has revealed the following drawbacks of existing technologies: In related technologies, smart electronic devices typically use centrifugal fans for heat dissipation. However, existing centrifugal fans are relatively large in size, with the fan module occupying nearly 20% of the battery compartment space, resulting in a reduction of approximately one hour of battery life. Furthermore, a large installation space needs to be reserved during the assembly of electronic devices, which contradicts the development trend of miniaturization and long battery life in smart electronic devices.

[0037] Therefore, how to solve the problem that leaving too much space in the heat dissipation equipment will affect the battery life is a technical problem that urgently needs to be solved in this field.

[0038] The shortcomings of the above solutions are the result of the utility model inventor's practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as contributions made by the utility model inventor to this disclosure.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0040] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0041] like Figures 1 to 6 As shown:

[0042] Example 1: This example provides a fluid drive device, including: an upper shell 3 with an air inlet 31 on its surface; a base 1 that is fastened to the upper shell 3 to form a storage space, an air outlet 11 at the bottom of the base 1, and raised platforms 14 evenly distributed on the side of the base 1 away from the elastic body 21, the raised platforms 14 allowing a certain gap between the air outlet 11 and the adjacent heat source to facilitate exhaust.

[0043] The resonator structure 2 is housed within the storage space and has air duct gaps on its adjacent surfaces to the upper shell 3 and the base 1. The resonator structure 2 includes an elastic body 21 with a pair of piezoelectric ceramic sheets 22 on the side facing the upper shell 3. An FPCB circuit board 23 is mounted on the piezoelectric ceramic sheets 22. The piezoelectric ceramic sheets 22 are configured such that the elastic body 21 deforms due to high-frequency vibration, causing airflow to be drawn in through the air inlet 31 and discharged through the air duct gaps from the air outlet 11. Specifically, the upper shell 3 and the base 1 are fastened together to form an integrated storage space. The resonator structure 2 integrates the FPCB circuit board 23, and the FPCB circuit board 23 is connected to the positive and negative poles of the piezoelectric ceramic sheets 22 through the built-in layout of the resonator structure 2. An alternating voltage is provided by an external driving circuit to cause the piezoelectric ceramic sheets 22 to vibrate, thereby driving the gas flow effect. This reduces the need for additional wiring, significantly reduces the overall volume, and lowers the assembly complexity.

[0044] The resonator structure 2 is pressed between the upper shell 3 and the base 1 by a fixing structure. Specifically, the fixing structure includes an upper boss 32 and a lower boss 12. The upper shell 3 is provided with an upper boss 32 facing the elastic body 21, and the base 1 is provided with a lower boss 12 facing the elastic body 21. The upper boss 32 and the lower boss 12 are suitable for pressing and fixing the elastic body 21. One end of the elastic body 21 is provided with a fixing end 25, which is connected to the base 1 and the upper shell 3 respectively.

[0045] The resonator structure 2 is positioned between the upper shell 3 and the base 1 by a limiting structure. Specifically, the limiting structure includes a limiting post 13, a limiting hole 33, and a clearance hole 24. The base 1 is provided with a pair of limiting posts 13 facing the elastic body 21. The upper shell 3 is provided with a limiting hole 33 that matches the limiting post 13. The elastic body 21 is provided with a clearance hole 24 that matches the limiting post 13. The limiting hole 33 has an inverted trapezoidal cross section. The limiting post 13 is configured to pass through the clearance hole 24 and the limiting hole 33 in sequence to limit the elastic body 21.

[0046] An anti-backflow structure 26 is provided on the side of the elastomer 21 facing the base 1. The anti-backflow structure 26 includes a first rectangular groove 261a, which is opened on the side of the elastomer 21 facing the base 1. The first rectangular groove 261a is opened directly above the vent 11 and its coverage area is larger than that of the vent 11. Its main purpose is to allow air to be discharged from the vent 11 when the elastomer 21 is in contact with the bottom surface of the base 1, and to prevent the airflow from moving laterally around the vent 11. The periphery of the first rectangular groove 261a has the effect of blocking the airflow from moving towards the upper shell 3.

[0047] Example 2: This example provides a fluid drive device, including: an upper shell 3 with an air inlet 31 on its surface; a base 1 that is fastened to the upper shell 3 to form a storage space, an air outlet 11 at the bottom of the base 1, and raised platforms 14 evenly distributed on the side of the base 1 away from the elastic body 21, the raised platforms 14 allowing a certain gap between the air outlet 11 and the adjacent heat source to facilitate exhaust.

[0048] The resonator structure 2 is housed within the storage space and has air duct gaps on its adjacent surfaces to the upper shell 3 and the base 1. The resonator structure 2 includes an elastic body 21 with a pair of piezoelectric ceramic sheets 22 on the side facing the upper shell 3. An FPCB circuit board 23 is mounted on the piezoelectric ceramic sheets 22. The piezoelectric ceramic sheets 22 are configured such that the elastic body 21 deforms due to high-frequency vibration, causing airflow to be drawn in through the air inlet 31 and discharged through the air duct gaps from the air outlet 11. Specifically, the upper shell 3 and the base 1 are fastened together to form an integrated storage space. The resonator structure 2 integrates the FPCB circuit board 23, and the FPCB circuit board 23 is connected to the positive and negative poles of the piezoelectric ceramic sheets 22 through the built-in layout of the resonator structure 2. An alternating voltage is provided by an external driving circuit to cause the piezoelectric ceramic sheets 22 to vibrate, thereby driving the gas flow effect. This reduces the need for additional wiring, significantly reduces the overall volume, and lowers the assembly complexity.

[0049] The resonator structure 2 is pressed between the upper shell 3 and the base 1 by a fixing structure. Specifically, the fixing structure includes an upper boss 32 and a lower boss 12. The upper shell 3 is provided with an upper boss 32 facing the elastic body 21, and the base 1 is provided with a lower boss 12 facing the elastic body 21. The upper boss 32 and the lower boss 12 are suitable for pressing and fixing the elastic body 21. One end of the elastic body 21 is provided with a fixing end 25, which is connected to the base 1 and the upper shell 3 respectively.

[0050] The resonator structure 2 is positioned between the upper shell 3 and the base 1 by a limiting structure. Specifically, the limiting structure includes a limiting post 13, a limiting hole 33, and a clearance hole 24. The base 1 is provided with a pair of limiting posts 13 facing the elastic body 21. The upper shell 3 is provided with a limiting hole 33 that matches the limiting post 13. The elastic body 21 is provided with a clearance hole 24 that matches the limiting post 13. The limiting hole 33 has an inverted trapezoidal cross section. The limiting post 13 is configured to pass through the clearance hole 24 and the limiting hole 33 in sequence to limit the elastic body 21.

[0051] An anti-backflow structure 26 is provided on the side of the elastomer 21 facing the base 1. The anti-backflow structure 26 includes a metal sheet 261b, which is provided on the side of the elastomer 21 facing the base 1. A second rectangular groove 262b is formed on the surface of the metal sheet 261b. The second rectangular groove 262b is formed directly above the vent 11 and its coverage area is larger than that of the vent 11. The main purpose is to allow air to be discharged from the vent 11 when the metal sheet 261b abuts against the bottom surface of the base 1, and to prevent the airflow from moving laterally around the vent 11. The periphery of the first rectangular groove 261a has the effect of blocking the airflow from moving towards the upper shell 3.

[0052] Example 3: This example provides a fluid drive device, including: an upper shell 3 with an air inlet 31 on its surface; a base 1 that is fastened to the upper shell 3 to form a storage space, an air outlet 11 at the bottom of the base 1, and raised platforms 14 evenly distributed on the side of the base 1 away from the elastic body 21, the raised platforms 14 allowing a certain gap between the air outlet 11 and the adjacent heat source to facilitate exhaust.

[0053] The resonator structure 2 is housed within the storage space and has air duct gaps on its adjacent surfaces to the upper shell 3 and the base 1. The resonator structure 2 includes an elastic body 21 with a pair of piezoelectric ceramic sheets 22 on the side facing the upper shell 3. An FPCB circuit board 23 is mounted on the piezoelectric ceramic sheets 22. The piezoelectric ceramic sheets 22 are configured such that the elastic body 21 deforms due to high-frequency vibration, causing airflow to be drawn in through the air inlet 31 and discharged through the air duct gaps from the air outlet 11. Specifically, the upper shell 3 and the base 1 are fastened together to form an integrated storage space. The resonator structure 2 integrates the FPCB circuit board 23, and the FPCB circuit board 23 is connected to the positive and negative poles of the piezoelectric ceramic sheets 22 through the built-in layout of the resonator structure 2. An alternating voltage is provided by an external driving circuit to cause the piezoelectric ceramic sheets 22 to vibrate, thereby driving the gas flow effect. This reduces the need for additional wiring, significantly reduces the overall volume, and lowers the assembly complexity.

[0054] The resonator structure 2 is pressed between the upper shell 3 and the base 1 by a fixing structure. Specifically, the fixing structure includes an upper boss 32 and a lower boss 12. The upper shell 3 is provided with an upper boss 32 facing the elastic body 21, and the base 1 is provided with a lower boss 12 facing the elastic body 21. The upper boss 32 and the lower boss 12 are suitable for pressing and fixing the elastic body 21. One end of the elastic body 21 is provided with a fixing end 25, which is connected to the base 1 and the upper shell 3 respectively.

[0055] The resonator structure 2 is positioned between the upper shell 3 and the base 1 by a limiting structure. Specifically, the limiting structure includes a limiting post 13, a limiting hole 33, and a clearance hole 24. The base 1 is provided with a pair of limiting posts 13 facing the elastic body 21. The upper shell 3 is provided with a limiting hole 33 that matches the limiting post 13. The elastic body 21 is provided with a clearance hole 24 that matches the limiting post 13. The limiting hole 33 has an inverted trapezoidal cross section. The limiting post 13 is configured to pass through the clearance hole 24 and the limiting hole 33 in sequence to limit the elastic body 21.

[0056] An anti-backflow structure 26 is provided on the side of the elastomer 21 facing the base 1. The anti-backflow structure 26 includes a bending portion 261c, which is provided on both sides of the elastomer 21 and bends towards the base 1. The bending portion 261c is provided on one side of the air outlet 11 to block the airflow from moving above the elastomer 21, thereby achieving the anti-backflow effect.

[0057] Example 4: This example provides a fluid drive device, including: an upper shell 3 with an air inlet 31 on its surface; a base 1 that is fastened to the upper shell 3 to form a storage space, with an air outlet 11 at the bottom of the base 1; and a resonator structure 2 disposed within the storage space, with air duct gaps between the resonator structure 2 and the adjacent surfaces of the upper shell 3 and the base 1. The resonator structure 2 includes: an elastic body 21 with a pair of piezoelectric ceramic sheets 22 disposed on the side facing the upper shell 3, and an FPCB circuit board 23 disposed on the piezoelectric ceramic sheets 22; a first rectangular groove 261a is formed on the side of the elastic body 21 facing the base 1, which is suitable for preventing gas backflow; wherein, the piezoelectric ceramic sheets 22 are configured such that the elastic body 21 is deformed by high-frequency vibration, so that airflow is drawn in from the air inlet 31 and discharged from the air outlet 11 through the air duct gap.

[0058] In summary, the external electrical signal is connected to the piezoelectric ceramic sheet 22 through the FPCB circuit board 23. When the piezoelectric ceramic sheet 22 is excited by the electrical signal, it will generate a corresponding vibration mode. The vibration will then drive the elastic body 21 to deform, and finally complete the process of drawing in outside air from the air inlet 31 and expelling it from the air outlet 11. In addition, the noise generated by the vibration of the piezoelectric ceramic sheet 22 is lower than the noise generated by the rotation of the centrifugal fan. The piezoelectric ceramic sheet 22 has a programmable adjustable resonant frequency, automatically adapts to changes in air pressure, and has low energy consumption.

[0059] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0060] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0061] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A fluid drive device, characterized in that, include: The upper shell (3) has an air inlet (31) on its surface. The base (1) is fastened to the upper shell (3) to form a storage space. The bottom of the base (1) is provided with an air vent (11). The resonator structure (2) is set in the storage space and has air duct gaps on the adjacent surfaces of the upper shell (3) and the base (1); The resonator structure (2) includes: An elastomer (21) is provided with a piezoelectric ceramic sheet (22), and an FPCB circuit board (23) is provided on the piezoelectric ceramic sheet (22). The piezoelectric ceramic sheet (22) is configured to deform the elastomer (21) by high-frequency vibration so that airflow is drawn in from the air inlet (31) and discharged from the air outlet (11) through the air duct gap.

2. The fluid drive device as described in claim 1, characterized in that, The upper shell (3) is provided with an upper boss (32) facing the elastic body (21), and the base (1) is provided with a lower boss (12) facing the elastic body (21). The upper boss (32) and the lower boss (12) are adapted to compress and fix the elastic body (21).

3. The fluid drive device as described in claim 2, characterized in that, The base (1) is provided with a pair of limiting posts (13) facing the elastic body (21), the upper shell (3) is provided with limiting holes (33) adapted to the limiting posts (13), and the elastic body (21) is provided with clearance holes (24) adapted to the limiting posts (13). Furthermore, the limiting hole (33) has an inverted trapezoidal cross-section; The limiting post (13) is configured to pass through the clearance hole (24) and the limiting hole (33) in sequence to limit the elastic body (21).

4. The fluid drive device as described in claim 3, characterized in that, One end of the elastomer (21) is provided with a fixed end (25), which is connected to the base (1) and the upper shell (3) respectively.

5. The fluid drive device as described in claim 4, characterized in that, Elevation platforms (14) are evenly distributed on the side of the base (1) away from the elastic body (21).

6. The fluid drive device according to any one of claims 1-5, characterized in that, The elastomer (21) is provided with an anti-backflow structure (26) on the side facing the base (1).

7. The fluid drive device as claimed in claim 6, characterized in that, The anti-backflow structure (26) includes a first rectangular groove (261a) which is formed on the side of the elastomer (21) facing the base (1).

8. The fluid drive device as claimed in claim 6, characterized in that, The anti-backflow structure (26) includes a metal sheet (261b) disposed on the side of the elastic body (21) facing the base (1), and a second rectangular groove (262b) is formed on the surface of the metal sheet (261b).

9. The fluid drive device as claimed in claim 6, characterized in that, The anti-backflow structure (26) includes a bending portion (261c), which is disposed on both sides of the elastic body (21) and bends toward the base (1).

10. A fluid drive device, characterized in that, include: The upper shell (3) has an air inlet (31) on its surface. The base (1) is fastened to the upper shell (3) to form a storage space. The bottom of the base (1) is provided with an air vent (11). The resonator structure (2) is set in the storage space and has air duct gaps on the adjacent surfaces of the upper shell (3) and the base (1); The resonator structure (2) includes: An elastomer (21) is provided with a piezoelectric ceramic sheet (22) and an FPCB circuit board (23) is provided on the piezoelectric ceramic sheet (22). The elastic body (21) has a first rectangular groove (261a) on the side facing the base (1), which is suitable for preventing gas backflow; The piezoelectric ceramic sheet (22) is configured to deform the elastomer (21) by high-frequency vibration so that airflow is drawn in from the air inlet (31) and discharged from the air outlet (11) through the air duct gap.

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