Flow stabilizing plate and high-performance gas conveying device

Abstract

The utility model relates to the technical field of piezoelectric pumps, in particular to a steady flow plate and a high-performance gas conveying device, the steady flow plate is matched with the gas conveying device to be arranged at a gas hole of the gas conveying device, and the steady flow plate disperses a stream of gas flow into a plurality of streams through the design of a plurality of channels, so that the stability of gas flow at the gas hole of the gas conveying device is improved; the flow stabilizing plate is used for stabilizing and optimizing gas flowing, and disturbance of the vibration assembly to gas flow at the gas holes of the gas conveying device is reduced; furthermore, the resistance of reverse flowing of the gas is increased through a plurality of thin and small gas flow channels, and the flow stabilizing plate is matched with a one-way valve at the gas hole of the gas conveying device for use, so that one-way flowing of the gas at the gas hole is further ensured, backflow disturbance is avoided, the stability of one-way flowing is improved, and the gas conveying performance of the gas conveying device can be improved. Due to the design of the multiple flow channels, the gas inlet pressure is effectively dispersed, the possibility that a single channel is blocked is reduced, and even if a certain flow channel is blocked, the continuity of gas conveying can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid transportation, in particular to a flow stabilizing plate and a high-performance gas transportation device. Background Art

[0002] Piezoelectric pumps are widely used in medical equipment, electronic equipment cooling, pneumatic tools and other fields. Currently, some piezoelectric pump designs adopt a dual-pump chamber structure, which uses its internal vibration component to brake and separate two interconnected chambers for gas intake and exhaust, respectively, to achieve continuous gas transmission.

[0003] At present, in the actual application of piezoelectric pumps, users frequently mention the noise problem. After further analysis, it is found that the noise of piezoelectric pumps is not caused by a single factor. First, the direct disturbance of the gas inlet and outlet by the vibration component during the vibration process not only destroys the smoothness of the airflow delivery, but also causes irregular turbulence at the inlet and outlet, thereby causing noise. At the same time, this disturbance also increases the resistance of the gas flow process, thereby affecting the efficiency of the pumping gas.

[0004] In addition, the instability of the inlet and outlet airflow and the sudden change of air pressure are also important factors that lead to noise and reduced pumping efficiency. During the operation of the piezoelectric pump, due to the periodic vibration of the vibration component, the airflow velocity and pressure at the inlet and outlet will change periodically. If the high-frequency drive of the piezoelectric vibrator causes the airflow to change too drastically or irregularly, it will lead to unstable airflow and sudden changes in air pressure, which will cause additional energy loss and reduce the overall performance of the piezoelectric pump.

[0005] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present disclosure and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this utility model is to provide a flow stabilizing plate and a high-performance gas delivery device to address the defects in the prior art;

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is:

[0008] A flow stabilizing plate comprises a plate body and a plurality of flow channels arranged thereon, wherein each of the flow channels is independently extended in the plane direction of the plate body;

[0009] A confluence portion is provided on the first surface of the plate body, one end of the flow channel extends to the confluence portion, and the other end extends to the surface of the plate body to form an independent vent, and the flow channel is connected to the air hole of the gas conveying device through the confluence portion.

[0010] Furthermore, the first plate surface is in contact with the outer wall surface where the air hole is opened, and the flow channel includes a first groove provided on the first plate surface, and the flow channel is formed by the first groove and the outer wall surface.

[0011] Furthermore, the confluence portion includes a second groove provided on the first plate surface, and the second groove is connected to one end of the first groove.

[0012] Furthermore, one end of the first groove away from the second groove extends to the edge of the first plate surface and cooperates with the outer wall surface to form the vent.

[0013] Furthermore, the vent is opened on the second plate surface of the plate body facing away from the first plate surface.

[0014] Furthermore, the confluence portion is arranged at the geometric center of the first plate surface, and the plurality of flow channels are evenly distributed along the circumferential direction on the outer circle of the confluence portion.

[0015] A high-performance gas delivery device includes a pump chamber and a vibration component arranged therein. The pump chamber is driven by the vibration component and cooperates with an air hole to continuously pump in and out gas. The above-mentioned flow stabilizing plate is arranged at the air hole.

[0016] Furthermore, the pump cavity is enclosed by a first pump seat and a second pump seat, and the vibration assembly is arranged between the first pump seat and the second pump seat, and separates the pump cavity into a first cavity and a second cavity that are interconnected;

[0017] The air hole includes an air inlet and an air outlet, and is respectively arranged on the first pump seat and the second pump seat. A first one-way valve and a second one-way valve are respectively arranged on the side of the air inlet and the air outlet close to the pump chamber. The flow stabilizer is arranged on the side of the air inlet and / or the air outlet facing away from the pump chamber.

[0018] The beneficial effects of the utility model are:

[0019] In the present application, the flow stabilizer disperses a stream of gas into multiple streams through a multi-channel design, thereby improving the smoothness of the gas flow at the air holes of the gas conveying device; the flow stabilizer optimizes the smooth flow of gas and reduces the disturbance of the vibration component on the air flow at the air holes of the gas conveying device; further, the resistance to the reverse flow of gas is increased through multiple thin and small gas flow channels. The coordinated use of the flow stabilizer and the one-way valve further ensures the unidirectional flow of gas at the air holes, avoids the backflow disturbance of gas, improves the stability of the unidirectional flow, and thus greatly improves the gas delivery performance of the gas conveying device.

[0020] The multiple flow channel design effectively disperses the inlet pressure, reduces the possibility of a single channel being blocked, and ensures the continuity of gas delivery. Even if a flow channel is blocked, the other flow channels can still operate normally, improving the reliability of the entire gas delivery system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic structural diagram of the flow stabilizing plate in the utility model;

[0023] Figure 2 This is a schematic diagram of the installation of the flow stabilizing plate and the gas transmission device in the utility model;

[0024] Figure 3 This is a schematic diagram of an explosion of the high-performance gas delivery device of the present invention;

[0025] Figure 4 This is a cross-sectional view of the high-performance gas delivery device of the present invention;

[0026] Figure 5 It is a cross-sectional view of the high-performance gas delivery device in the present utility model.

[0027] Figure markings: 1. Plate body; 11. First plate surface; 12. Second plate surface; 2. Flow channel; 21. First groove; 3. Confluence; 31. Second groove; 4. Vent; 5. Gas conveying device; 51. Air hole; 511. Air inlet; 512. Air outlet; 52. Outer wall; 53. First pump seat; 54. Second pump seat; 55. Pump chamber; 551. First cavity; 552. Second cavity; 56. Vibration assembly; 57. Flow stabilizer; 58. First one-way valve; 59. Second one-way valve. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] This application proposes a flow stabilizer design and a specific implementation method of applying it to a gas delivery device 5 to improve working performance. Through multiple independent flow channels 2 on the flow stabilizer 57, a gas flow is dispersed into multiple streams, aiming to improve the smoothness of the gas flow and enhance the pumping performance of the gas.

[0032] In this embodiment, if Figure 1 The structure of the flow stabilizing plate 57 shown includes a plate body 1 and multiple flow channels 2 arranged thereon, and each flow channel 2 is independently extended in the plane direction of the plate body 1; a confluence portion 3 is provided on the first plate surface 11 of the plate body 1, one end of the flow channel 2 extends to the confluence portion 3, and the other end extends to the surface of the plate body 1 to form an independent vent 4, and the flow channel 2 is connected to the air hole 51 of the gas conveying device 5 through the confluence portion 3.

[0033] During the setting process of the flow channel 2 structure in the flow stabilizing plate 57, multiple flow channels 2 can disperse a concentrated airflow into multiple small airflows. These small airflows are independent of each other during the flow process, avoiding interference and collision with each other, and ensuring the stability of the multiple airflows during transportation.

[0034] In the specific application process, such as Figure 2 As shown, by dispersing the airflow, the direct disturbance of the piezoelectric vibrator vibration in the gas delivery device 5 on the airflow at the air hole 51 is reduced, reducing the noise generated by the irregular movement of the airflow and improving the user experience of the product. The design of the converging portion 3 on the flow stabilizing plate 57 allows multiple airflows to converge in an orderly manner at the air hole 51, avoiding confusion during the convergence process or confusion before the flow is divided, further improving the smoothness of the airflow.

[0035] The flow stabilizer 57 brings together multiple airflows through the confluence portion 3 and inputs them into the gas conveying device 5, or disperses an airflow pumped out from the gas conveying device 5 into multiple airflows through the confluence portion 3 and guides them to the outside; the setting of the confluence portion 3 reduces the direct impact of the vibration of the piezoelectric vibrator on the airflow at the pore 51. Regardless of the pumping in or out of the airflow, dispersing a concentrated airflow into multiple small airflows can reduce the turbulence and disturbance of the airflow when passing through the pore 51, improve the stability of the airflow at the inlet and outlet of the gas conveying device 5, and improve the gas pumping efficiency while reducing the generation of noise.

[0036] In this embodiment, if Figure 2 and Figure 3 As shown, the first plate surface 11 is in contact with the outer wall surface 52 where the air hole 51 is opened, and the flow channel 2 includes a first groove 21 provided on the first plate surface 11 . The flow channel 2 is formed by the first groove 21 and the outer wall surface 52 .

[0037] As a preferred method of forming the flow channel 2, a first groove 21 is opened on the first plate surface 11 of the flow stabilizing plate 57. When the flow stabilizing plate 57 is assembled to the gas conveying device 5, the first groove 21 fits tightly against the outer wall surface 52 of the gas conveying device 5, and together they enclose the flow channel 2 for gas conveying.

[0038] Compared to the method of forming the flow channel 2 inside the plate body 1, this solution forms the flow channel 2 by forming a groove on the outer surface, which significantly reduces the thickness requirement of the plate body 1. This makes the flow stabilizer 57 lighter, thinner, and more compact, which helps save space and improve the overall performance of the product.

[0039] Compared to machining the flow channel 2 internally, the grooves formed on the outer surface of the plate 1 make the manufacturing process simpler and more straightforward. This not only reduces processing difficulty and cost, but also helps improve production efficiency and product quality. The simple and easy-to-machine structure of the flow channel 2 significantly reduces production costs, which is of great significance for mass production and widespread application.

[0040] Furthermore, in this embodiment, the confluence portion 3 includes a second groove 31 provided on the first plate surface 11 , and the second groove 31 is connected to one end of the first groove 21 .

[0041] The confluence portion 3, through the design of the second groove 31, is easily processed to achieve communication with the multiple first grooves 21. The second groove 31, as the confluence portion 3, can serve as the confluence point for multiple airflows in the multiple flow channels 2. This ensures the smooth and orderly delivery of airflow and avoids confusion during the flow between the air holes 51 and the flow stabilizer 57.

[0042] Another feasible design of the confluence part 3 is to set the confluence part 3 to be convex, that is, to bulge and extend into the air hole 51; this design can not only realize the convergence and guidance of the air flow, but also play the role of installation and positioning of the flow stabilizer 57; the convex part can fit tightly with the inner wall of the air hole 51, ensuring the accurate positioning of the flow stabilizer 57 during the assembly process.

[0043] In this embodiment, the first groove 21 extends to the edge of the first plate surface 11 at one end away from the second groove 31 and cooperates with the outer wall surface 52 to form a vent 4, see Figure 4 shown.

[0044] Alternatively, another design of the vent 4 is adopted, that is, the vent 4 is opened on the second plate surface 12 of the plate body 1 facing away from the first plate surface 11, see Figure 5 shown.

[0045] The two design methods of the vent 4 provided in the above embodiments are both within the protection scope of the patent scheme. The first method is to use the first groove 21 to extend to the edge of the plate surface, and cooperate with the outer wall surface 52 to naturally form the vent 4; the second method is to open a through hole on the second plate surface 12 corresponding to the position of the flow channel 2 to form a vent 51.

[0046] The first vent 4 design eliminates the need for additional through-holes on the second plate surface 12, simplifying the structure of the flow stabilizer 57 and reducing manufacturing difficulty and cost. The second vent 4 design, while requiring through-holes, offers greater flexibility, allowing the position of the vent 4 to be adjusted as needed.

[0047] In summary, no matter which method is adopted, the design of the vent 4 ensures that the airflow can pass through the flow stabilizing plate 57 steadily and smoothly and enter or exit the gas delivery device 5 .

[0048] In this embodiment, the confluence portion 3 is disposed at the geometric center of the first plate surface 11 , and the plurality of flow channels 2 are evenly distributed on the outer circle of the confluence portion 3 along the circumferential direction.

[0049] As a preferred layout for the flow channels 2, the confluence 3 is placed at the center of the panel, with the flow channels 2 evenly distributed around the confluence 3, forming a symmetrical and balanced layout. This ensures that the path length and resistance between the vents 4 of each flow channel 2 and the confluence 3 are similar, ensuring uniform airflow within each flow channel 2.

[0050] The present application further discloses a high-performance gas delivery device 5, including a pump chamber 55 and a vibration component 56 arranged therein. The pump chamber 55 is driven by the vibration component 56 and cooperates with the air hole 51 to continuously pump in and out gas. The above-mentioned flow stabilizing plate 57 is provided at the air hole 51.

[0051] The pump chamber 55 is enclosed by the first pump seat 53 and the second pump seat 54. The vibration assembly 56 is arranged between the first pump seat 53 and the second pump seat 54, and separates the pump chamber 55 into a first cavity 551 and a second cavity 552 that are interconnected. The air hole 51 includes an air inlet 511 and an air outlet 512, and are respectively arranged on the first pump seat 53 and the second pump seat 54. A first one-way valve 58 and a second one-way valve 59 are respectively arranged on the side of the air inlet 511 and the air outlet 512 close to the pump chamber 55, and the flow stabilizer 57 is arranged on the side thereof facing away from the pump chamber 55 corresponding to the air inlet 511 and / or the air outlet 512.

[0052] The pump seat in the gas delivery device adopts a rotationally symmetrical structure. The outer wall surface 52 of the pump seat facing the flow stabilizer 57 can be flexibly set to a variety of shapes such as square, circular, rectangular, elliptical, or even triangular according to specific usage requirements. In order to perfectly match the outer wall surface 52 of the pump seat, the shape of the flow stabilizer 57 has also been adjusted accordingly. Regardless of the shape of the outer wall surface 52 of the pump seat, the flow stabilizer 57 can be tightly fitted with it through the corresponding shape design, ensuring smooth and efficient gas flow. The high-performance gas delivery device 5 disclosed in this embodiment has a similar working principle to that of a piezoelectric pump. The vibration component 56 is driven within the pump chamber 55 and cooperates with the air hole 51 to achieve continuous pumping in and out of gas. The first pump seat 53 and the second pump seat 54 cooperate closely to form a sealed pump chamber 55, ensuring efficient gas delivery. The air inlet 511 and the air outlet 512 are responsible for the intake and exhaust of gas, respectively, and cooperate with the one-way valve to ensure the unidirectional flow of gas. The flow stabilizer 57 is set at the air inlet 511 or the air outlet 512 according to actual needs to optimize the gas flow characteristics.

[0053] In the specific implementation process, taking the flow stabilizer 57 set at the air inlet 511 as an example, the gas is inhaled through the multi-path flow channel 2, which disperses the pressure of the gas flow, makes the air pump work more smoothly, reduces the turbulence and eddy current in the gas flow, and improves the stability of gas delivery.

[0054] Furthermore, the design of multiple flow channels 2 on the flow stabilizer 57 increases the number of air inlet channels, reducing the possibility of a single channel being blocked. Even if a flow channel 2 is blocked, the other flow channels 2 can continue to work, ensuring the continuity of gas delivery.

[0055] The flow stabilizer 57 is arranged at the air inlet 511, and increases the resistance to the reverse outflow of gas through multiple thin and small gas flow channels 2. In conjunction with the first one-way valve 58, it further ensures the one-way suction of gas at the air inlet 511, avoiding gas backflow and disturbance.

[0056] Furthermore, the addition of the flow stabilizer 57 stabilizes gas flow, reducing disturbances caused by the vibration of the piezoelectric vibrator. This smooth gas flow reduces noise generated by vibration and improves the overall performance of the gas delivery device 5. The design of the flow stabilizer 57 can be flexibly adjusted based on the application scenario and usage requirements of the gas delivery device 5. Whether at the air inlet 511 or the air outlet 512, the flow stabilizer 57 can optimize gas flow and improve delivery efficiency.

[0057] Taking the internal heat dissipation of electronic products as an example, the high-performance gas delivery device 5 in this embodiment is applied to this scenario. Taking into account the limitations of the internal space of electronic products and the requirements for heat dissipation efficiency, the flow stabilizer 57 is cleverly set on the first pump seat 53, corresponding to the air inlet 511. This design not only improves the smoothness and stability of the air pump's intake of gas, but also reduces the risk of the intake channel being blocked through the multi-channel flow channel 2. At the same time, the use of the flow stabilizer 57 in conjunction with the first one-way valve 58 further ensures the one-way intake of gas at the air inlet 511, providing an efficient and stable heat dissipation solution for electronic products.

[0058] Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and the specification are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A flow stabilizer, characterized in that: It comprises a plate body (1) and a plurality of flow channels (2) arranged thereon, wherein each of the flow channels (2) is independently extended in the plane direction of the plate body (1); A confluence portion (3) is provided on the first plate surface (11) of the plate body (1); one end of the flow channel (2) extends to the confluence portion (3), and the other end extends to the surface of the plate body (1) to form an independent vent (4); the flow channel (2) is connected to the air hole (51) of the gas conveying device (5) through the confluence portion (3).

2. The flow stabilizer according to claim 1, characterized in that: The first plate surface (11) is in contact with the outer wall surface (52) where the air hole (51) is opened, and the flow channel (2) includes a first groove (21) provided on the first plate surface (11). The flow channel (2) is formed by the first groove (21) and the outer wall surface (52).

3. The flow stabilizer according to claim 2, characterized in that: The confluence portion (3) comprises a second groove (31) provided on the first plate surface (11), and the second groove (31) is connected to one end of the first groove (21).

4. The flow stabilizer according to claim 3, characterized in that: One end of the first groove (21) away from the second groove (31) extends to the edge of the first plate surface (11) and cooperates with the outer wall surface (52) to form the vent (4).

5. The flow stabilizer according to claim 2, characterized in that: The vent (4) is opened on the second plate surface (12) of the plate body (1) facing away from the first plate surface (11).

6. The flow stabilizer according to claim 1, characterized in that: The confluence portion (3) is arranged at the geometric center of the first plate surface (11), and the plurality of flow channels (2) are evenly distributed along the circumferential direction on the outer circle of the confluence portion (3).

7. A high performance gas delivery device, characterized in that: The invention comprises a pump chamber (55) and a vibration component (56) arranged therein, wherein the pump chamber (55) cooperates with the air hole (51) to continuously pump in and out gas under the drive of the vibration component (56), and a flow stabilizing plate (57) according to any one of claims 1 to 6 is arranged at the air hole (51).

8. The high-performance gas delivery device according to claim 7, characterized in that: The pump chamber (55) is enclosed by a first pump seat (53) and a second pump seat (54); the vibration assembly (56) is arranged between the first pump seat (53) and the second pump seat (54), and separates the pump chamber (55) into a first cavity (551) and a second cavity (552) that are interconnected; The air hole (51) comprises an air inlet (511) and an air outlet (512), and is respectively arranged on the first pump seat (53) and the second pump seat (54); a first one-way valve (58) and a second one-way valve (59) are respectively arranged on the side of the air inlet (511) and the air outlet (512) close to the pump chamber (55); and the flow stabilizing plate (57) is arranged on the side thereof facing away from the pump chamber (55) in correspondence with the air inlet (511) and / or the air outlet (512).

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