Glue spinning structure for sealing bipolar plate body of fuel cell

Abstract

The utility model provides a spinning structure for sealing a bipolar plate body of a fuel cell, which relates to the field of spinning structures and comprises a bottom plate, a cleaning unit is arranged on the right side of the rear end of the top of the bottom plate, a transmission component is arranged at the front end of the top of the bottom plate, and a gluing unit is arranged on one side of the rear end of the top of the bottom plate; the output shaft of the motor can drive the screw rod to rotate, the screw rod drives the sleeve block and the fixing plate to move, the fixing plate drives the suction hopper and the brush to move to the bipolar plate, impurities on the surface of the bipolar plate are cleaned and brushed through the brush, and meanwhile the centrifugal fan operates to enable the suction hopper to generate suction force to suck and transmit the cleaned and brushed impurities to an inner cavity of the spring pipe. Impurities are conveyed to an inner cavity of a collecting box through a spring pipe to be collected, then cleaning before gluing of the bipolar plate is achieved, the surface cleanliness of the bipolar plate is ensured, the situation that the sealing performance is affected due to the fact that gluing is prone to falling off in the later period is prevented, glue can be sprayed to the surface of the bipolar plate through a gluing unit, and then sealing of the bipolar plate is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of adhesive spinning structure, specifically an adhesive spinning structure for sealing the bipolar plate body of a fuel cell. Background Technology

[0002] In the design and manufacturing of fuel cells, bipolar plates are one of the most critical components. Their main functions are to provide electrical connections, gas flow channels, thermal management, and structural support for the battery cells. Body sealing is an important link to ensure that gas does not leak and the system operates stably. In order to ensure the sealing of the gas flow channels during the operation of the fuel cell, a spin-coating structure is used to seal the surface of the battery bipolar plates.

[0003] In the use of the spin coating structure, the battery bipolar plates are first placed on the support plate, and then the adhesive is sprayed directly onto the sealing surface of the bipolar plates through the nozzle of the spin coating structure, forming a uniform sealing layer. This sealing layer can effectively isolate the gas flow path in the fuel cell unit, prevent gas leakage, and allow relative movement or deformation of the bipolar plates and other components. However, in the existing spin coating equipment, the dust and impurities on the surface of the bipolar plates are not cleaned in advance when the adhesive is sprayed onto the bipolar plates. As a result, the adhesive adheres to the dust or impurities and is very easy to fall off, which will affect the sealing performance of the battery bipolar plates in the later stage.

[0004] In summary, this utility model provides a spunbond structure for sealing the bipolar plate body of a fuel cell to solve the above-mentioned problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A sealing structure for a fuel cell bipolar plate includes a base plate, a cleaning unit located on the right side of the top rear end of the base plate, a transmission assembly located at the front end of the top of the base plate, and an adhesive application unit located on one side of the top rear end of the base plate. The cleaning unit includes a collection box, and a bottom box is fixedly connected to the bottom of the collection box. A centrifugal fan is installed inside the bottom box, and the air inlet of the centrifugal fan is connected to the collection box. A spring tube is connected to the top of the collection box, and a suction cup is connected to the other end of the spring tube. A brush is installed on one side of the suction cup. The transmission assembly includes a fixed base, which is fixedly connected to the base plate. A motor is fixedly connected to one side of the fixed base, and a screw is drivenly connected to the output shaft of the motor. A sleeve is fixedly connected to the front of the screw, and the backs of the suction cup and the brush are both fixedly connected to the fixed plate.

[0007] Furthermore, in this utility model, the adhesive application unit includes a bracket, and a storage tank is fixedly connected to the top of the bracket. A cylinder is provided on the top of the storage tank, and a push plate is fixedly connected to the output end of the cylinder. A transmission pipe is connected to the bottom of the storage tank, and a nozzle is connected to the other end of the transmission pipe. An electric push rod is fixedly connected to the front of the sleeve block, and the output end of the electric push rod is fixedly connected to the nozzle through a connecting plate.

[0008] Furthermore, in this invention, a support frame is fixedly connected to the bottom of the cylinder, and the bottom of the support frame is fixedly connected to the bracket.

[0009] Furthermore, in this utility model, support plates are fixedly connected to both sides of the top of the base plate, and a support rod is fixedly connected between the two support plates. The spring tube and the transmission tube are located on the surface of the support rod and are movably connected to the surface of the support rod.

[0010] Furthermore, in this utility model, an intercepting net is fixedly connected to the inner cavity of the air inlet end of the centrifugal fan, the air outlet end of the centrifugal fan passes through the bottom box and extends to the outside of the bottom box, and a sealing door is movably connected to one side of the collection box. A sealing strip is provided on the surface of the sealing door, and the sealing strip contacts the inner wall of the collection box.

[0011] Furthermore, in this utility model, a limiting block is fixedly connected to the bottom of the sleeve block, a limiting groove is formed at the bottom of the inner cavity of the fixing seat, and the bottom of the limiting block extends into the inner cavity of the limiting groove and is slidably connected with the inner cavity of the limiting groove.

[0012] Beneficial effects: This utility model has the following beneficial effects:

[0013] This invention allows for the placement of bipolar plates via a base plate. The output shaft of a motor drives a screw to rotate, causing the screw to move the sleeve and fixing plate to one side. This causes the fixing plate to move the suction cup and brush to the bipolar plates. The brush cleans impurities from the bipolar plate surface, while a centrifugal fan generates suction, drawing the cleaned impurities into the inner cavity of a spring tube. The spring tube then transfers the impurities to the inner cavity of a collection box for collection. This process cleans the bipolar plates before applying adhesive, ensuring surface cleanliness and preventing adhesive from easily peeling off and affecting sealing. The adhesive application unit then sprays adhesive onto the bipolar plate surface, achieving a seal. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure of the cylinder, push plate and storage tank of this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure of the fixing plate, suction cup and electric push rod of this utility model;

[0017] Figure 4 This is a cross-sectional structural diagram of the collection box and bottom box of this utility model;

[0018] Figure 5 This is a utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0019] In the picture:

[0020] 1. Base plate; 11. Support plate; 12. Support rod; 2. Glue application unit; 21. Bracket; 22. Storage tank; 23. Cylinder; 231. Support frame; 24. Push plate; 25. Transfer pipe; 26. Nozzle; 27. Electric push rod; 3. Cleaning unit; 31. Collection box; 311. Sealing door; 32. Base box; 33. Centrifugal fan; 331. Interception net; 34. Bourdon tube; 35. Suction bucket; 36. Brush; 4. Transmission assembly; 41. Fixed seat; 411. Limiting groove; 42. Motor; 43. Screw; 44. Sleeve block; 45. Fixed plate; 441. Limiting block. Detailed Implementation

[0021] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0022] Example 1

[0023] like Figure 1-5As shown, this is the first embodiment of the present invention. This embodiment provides a glue-spinning structure for sealing the bipolar plate body of a fuel cell, including a base plate 1. A cleaning unit 3 is provided on the right side of the top rear end of the base plate 1, a transmission assembly 4 is provided on the front end of the top of the base plate 1, and a glue-applying unit 2 is provided on one side of the top rear end of the base plate 1. The cleaning unit 3 includes a collection box 31, and a bottom box 32 is fixedly connected to the bottom of the collection box 31. A centrifugal fan 33 is provided in the inner cavity of the bottom box 32, and the air inlet of the centrifugal fan 33 is connected to... The collection box 31 is connected, and the top of the collection box 31 is connected to the spring tube 34. The other end of the spring tube 34 is connected to the suction cup 35. A brush 36 is provided on one side of the suction cup 35. The transmission assembly 4 includes a fixed base 41, and the fixed base 41 is fixedly connected to the base plate 1. A motor 42 is fixedly connected to one side of the fixed base 41, and the output shaft of the motor 42 is drivenly connected to the screw 43. A sleeve block 44 is fixedly connected to the front of the screw 43, and the backs of the suction cup 35 and the brush 36 are both fixedly connected to the fixed plate 45.

[0024] like Figure 1-5 As shown, the bipolar plate can be placed on the base plate 1. The output shaft of the motor 42 drives the screw 43 to rotate, causing the screw 43 to move the sleeve block 44 and the fixing plate 45 to one side. The fixing plate 45 then moves the suction bucket 35 and the brush 36 to the bipolar plate. The brush 36 contacts the bipolar plate, thus cleaning the impurities on the surface of the bipolar plate. At the same time, the centrifugal fan 33 operates, causing the suction bucket 35 to generate suction. The suction bucket 35 then sucks up the cleaned impurities and transfers them to the inner cavity of the spring tube 34. The spring tube 34 then transfers the impurities to the inner cavity of the collection box 31 for collection. This cleaning of the bipolar plate before applying adhesive ensures its surface cleanliness and prevents the adhesive from easily falling off later, affecting the sealing performance. Finally, the adhesive is sprayed onto the surface of the bipolar plate through the adhesive application unit 2, thus sealing the surface of the bipolar plate.

[0025] Example 2

[0026] Reference Figure 1-3 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0027] In this embodiment, the glue application unit 2 includes a bracket 21, and a storage tank 22 is fixedly connected to the top of the bracket 21. A cylinder 23 is provided on the top of the storage tank 22, and a push plate 24 is fixedly connected to the output end of the cylinder 23. A transmission pipe 25 is connected to the bottom of the storage tank 22, and a nozzle 26 is connected to the other end of the transmission pipe 25. An electric push rod 27 is fixedly connected to the front of the sleeve block 44, and the output end of the electric push rod 27 is fixedly connected to the nozzle 26 through a connecting plate.

[0028] A support frame 231 is fixedly connected to the bottom of the cylinder 23, and the bottom of the support frame 231 is fixedly connected to the bracket 21.

[0029] Support plates 11 are fixedly connected to both sides of the top of the base plate 1, and a support rod 12 is fixedly connected between the two support plates 11. The spring tube 34 and the transmission tube 25 are located on the surface of the support rod 12 and are movably connected to the surface of the support rod 12.

[0030] like Figure 1-3 As shown, the transmission pipe 25 and spring pipe 34 can be supported by the support plate 11 and the support rod 12. The cylinder 23 can be stably supported by the support frame 231, ensuring the stability of the cylinder 23 during operation. The output end of the electric push rod 27 drives the nozzle 26 to move downward to the bipolar plate. Then, the output end of the cylinder 23 drives the push plate 24 to move downward, causing pressure to be generated inside the storage tank 22. The pressure drives the adhesive to move into the inner cavity of the transmission pipe 25. The transmission pipe 25 transmits the adhesive to the inside of the nozzle 26. Finally, the nozzle 26 sprays the adhesive onto the surface of the bipolar plate, thereby achieving a seal on the surface of the bipolar plate.

[0031] Example 3

[0032] Reference Figure 1 , 4 5 and 6 are the third embodiment of this utility model, which is based on the first two embodiments.

[0033] In this embodiment, an intercepting net 331 is fixedly connected to the inner cavity of the air inlet end of the centrifugal fan 33, the air outlet end of the centrifugal fan 33 passes through the bottom box 32 and extends to the outside of the bottom box 32, and a sealing door 311 is movably connected to one side of the collection box 31. A sealing strip is provided on the surface of the sealing door 311, and the sealing strip is in contact with the inner wall of the collection box 31.

[0034] The bottom of the sleeve 44 is fixedly connected to the limiting block 441. The bottom of the inner cavity of the fixed seat 41 is provided with a limiting groove 411. The bottom of the limiting block 441 extends into the inner cavity of the limiting groove 411 and is slidably connected to the inner cavity of the limiting groove 411.

[0035] like Figure 1 , 4 As shown in Figure 5, the interception net 331 can intercept the impurities during the impurity absorption process, preventing them from entering the inner cavity of the centrifugal fan 33. The impurities extend to the outside through the outlet of the centrifugal fan 33, facilitating the discharge of excess gas. The collection box 31 can be sealed by the sealing door 311 in conjunction with the sealing strip to prevent impurity leakage. At the same time, the collection box 31 can be opened by pulling open the sealing door 311, facilitating the unified removal and processing of impurities. When the sleeve block 44 moves, it will drive the limiting block 441 to slide along the inner cavity of the limiting groove 411, thereby limiting the movement trajectory of the sleeve block 44 and ensuring the stability of the sleeve block 44 during movement.

[0036] In use, first place the bipolar plate on top of the base plate 1, which supports the bipolar plate. Then, turn on the motor 42. The output shaft of the motor 42 drives the screw 43 to rotate. Since the screw 43 and the sleeve block 44 are threadedly connected, the rotation of the screw 43 drives the sleeve block 44 and the fixing plate 45 to one side. The fixing plate 45 is fixed to the electric push rod 27, the suction bucket 35, and the brush 36 respectively. The fixing plate 45 will drive the electric push rod 27, the suction bucket 35, and the brush 36 to move synchronously. At this time, the brush 36 will move to the bipolar plate first. By contacting the bipolar plate, the brush 36 can clean the impurities on the surface of the bipolar plate. At the same time, the centrifugal fan 33 operates to generate suction force in the suction bucket 35, which will then suck up the cleaned impurities and transfer them to the spring tube 3. The inner cavity of the 4 is used to transfer impurities to the inner cavity of the collection box 31 via the spring tube 34 for collection, thereby cleaning the bipolar plate before applying adhesive, ensuring its surface cleanliness, and preventing the adhesive from falling off easily and affecting the sealing performance. After cleaning, the fixed plate 45 drives the electric push rod 27 to move, which in turn drives the nozzle 26 to move above the bipolar plate. Then, the output end of the electric push rod 27 drives the nozzle 26 to move downward to the bipolar plate. Then, the output end of the cylinder 23 drives the push plate 24 to move downward, creating pressure inside the storage tank 22. The pressure drives the adhesive to move to the inner cavity of the transmission pipe 25. The transmission pipe 25 transfers the adhesive to the inside of the nozzle 26, and finally, the nozzle 26 sprays the adhesive onto the surface of the bipolar plate, thereby achieving a seal on the surface of the bipolar plate.

[0037] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0038] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A spunbond structure for sealing the bipolar plate body of a fuel cell, comprising a base plate (1), characterized in that: A cleaning unit (3) is provided on the right side of the top rear end of the base plate (1), a transmission assembly (4) is provided at the front end of the top of the base plate (1), and an adhesive application unit (2) is provided on one side of the top rear end of the base plate (1). The cleaning unit (3) includes a collection box (31), and a bottom box (32) is fixedly connected to the bottom of the collection box (31). A centrifugal fan (33) is provided in the inner cavity of the bottom box (32), and the air inlet of the centrifugal fan (33) is connected to the collection box (31). A spring tube (34) is connected to the top of the collection box (31). The other end of the spring tube (34) is connected to a suction cup (35). A brush (36) is provided on one side of the suction cup (35). The transmission assembly (4) includes a fixed base (41) and the fixed base (41) is fixedly connected to the base plate (1). A motor (42) is fixedly connected to one side of the fixed base (41), and the output shaft of the motor (42) is drivenly connected to a screw (43). A sleeve block (44) is fixedly connected to the front of the screw (43), and the back of the suction cup (35) and the brush (36) are both fixedly connected to the fixed plate (45).

2. The spunbond structure for sealing the bipolar plate body of a fuel cell as described in claim 1, characterized in that: The adhesive application unit (2) includes a bracket (21), and a storage tank (22) is fixedly connected to the top of the bracket (21). A cylinder (23) is provided on the top of the storage tank (22), and a push plate (24) is fixedly connected to the output end of the cylinder (23). A transmission pipe (25) is connected to the bottom of the storage tank (22), and a nozzle (26) is connected to the other end of the transmission pipe (25). An electric push rod (27) is fixedly connected to the front of the sleeve block (44), and the output end of the electric push rod (27) is fixedly connected to the nozzle (26) through a connecting plate.

3. The spunbond structure for sealing the bipolar plate body of a fuel cell as described in claim 2, characterized in that: The bottom of the cylinder (23) is fixedly connected to a support (231), and the bottom of the support (231) is fixedly connected to the bracket (21).

4. The spunbond structure for sealing the bipolar plate body of a fuel cell as described in claim 2, characterized in that: The bottom plate (1) has two fixed support plates (11) on both sides of its top, and a support rod (12) is fixedly connected between the two support plates (11). The spring tube (34) and the transmission tube (25) are located on the surface of the support rod (12) and are movably connected to the surface of the support rod (12).

5. The spunbond structure for sealing the bipolar plate body of a fuel cell as described in claim 1, characterized in that: An intercepting net (331) is fixedly connected to the inner cavity of the air inlet end of the centrifugal fan (33). The air outlet end of the centrifugal fan (33) passes through the bottom box (32) and extends to the outside of the bottom box (32). A sealing door (311) is movably connected to one side of the collection box (31). A sealing strip is provided on the surface of the sealing door (311), and the sealing strip contacts the inner wall of the collection box (31).

6. The spunbond structure for sealing the bipolar plate body of a fuel cell as described in claim 1, characterized in that: The bottom of the sleeve (44) is fixedly connected to a limiting block (441), and a limiting groove (411) is opened at the bottom of the inner cavity of the fixed seat (41). The bottom of the limiting block (441) extends into the inner cavity of the limiting groove (411) and is slidably connected to the inner cavity of the limiting groove (411).

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