Coating device for fuel cell membrane electrode

Abstract

The utility model discloses a coating device for a fuel cell membrane electrode, which relates to the technical field of fuel cells and comprises a base, a conveyor belt mounted on the upper portion of the base, a support frame fixedly mounted on one side of the top end of the base, and two symmetrically distributed box bodies fixedly mounted at the top end of the support frame. A shell is arranged on the lower portion of the supporting frame, a first double-thread screw is rotationally installed in the middle of the shell, a driving assembly is arranged on one side of the first double-thread screw, a second sliding block is fixedly installed in the middle of the shell, and a plurality of symmetrically-distributed first sliding blocks are arranged in the middle of the shell. According to the device, the space between the nozzles can be dynamically adjusted under the control of the first motor, so that the spraying coverage area can be flexibly enlarged or reduced, the spraying requirements of battery membrane electrodes with different widths can be easily met, the practicability of the device is remarkably improved, the production efficiency is effectively improved, and the production cost is reduced. And the material waste is reduced.

Description

Technical Field

[0001] This utility model relates to the field of fuel cell technology, specifically to a coating device for a fuel cell membrane electrode. Background Technology

[0002] The membrane electrode assembly (MEA) is the core component of a fuel cell. It is an assembly that integrates a proton exchange membrane, a catalyst layer, and a diffusion layer. The MEA provides a reaction site for the reactants in the fuel cell, converting chemical energy into electrical energy. It is the site for multiple mass transport and electrochemical reactions. The level of its preparation directly restricts the performance of the fuel cell and affects the industrialization process of fuel cells.

[0003] However, the traditional method of spraying battery film electrodes is quite troublesome because the size of the battery film electrodes varies. Some spraying devices are set to be too small, which requires multiple spraying cycles when dealing with larger battery film electrode materials, resulting in low efficiency. On the other hand, if the spraying device is set to be too large, it will lead to a lot of material waste when dealing with smaller battery film electrode materials, which does not conform to the principle of economy. Utility Model Content

[0004] To address the issue that the coating device cannot be adjusted according to the size of the battery membrane electrode material during spraying to avoid material waste without affecting efficiency, the present invention aims to provide a coating device for fuel cell membrane electrodes.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: a coating device for a fuel cell membrane electrode assembly, comprising a base, a conveyor belt mounted on the upper part of the base, a support frame fixedly mounted on one side of the top of the base, two symmetrically distributed housings fixedly mounted on the top of the support frame, a housing provided at the lower part of the support frame, a first double-ended screw rotatably mounted in the middle of the housing, a drive assembly provided on one side of the first double-ended screw, a second sliding block fixedly mounted in the middle of the housing, and a plurality of symmetrically distributed first sliding blocks provided in the middle of the housing, wherein the middle of two of the first sliding blocks is threadedly mounted on the middle of the first double-ended screw, and the middle of the other two first sliding blocks is slidably engaged with the first double-ended screw. On the outer surface of the housing, two symmetrically distributed first connecting rods are rotatably mounted on one side of the middle of each of the two first sliding blocks. Two symmetrically distributed second connecting rods are rotatably mounted on the middle of one side of each of the other two first and second sliding blocks, and the second connecting rods are rotatably mounted to each other. One side of the first connecting rod is rotatably mounted on one end of the second connecting rod. A nozzle is fixedly mounted on the middle of the bottom end of each of the first and second sliding blocks. A guide tube is fixedly mounted on one side of the lower part of the housing. The middle of each of the multiple nozzles is fixedly mounted on the upper part of the guide tube, and the nozzles and the guide tube are interconnected. Both ends of the guide tube are fixedly mounted on the bottom end of the housing. A cylinder is fixedly mounted on the middle of the top end of the support frame, and the top middle of the housing is fixedly mounted on the driving end of the cylinder.

[0006] Preferably, a second double-ended screw is rotatably mounted on the lower part of the base, and two symmetrically distributed limiting plates are threaded onto the upper part of the second double-ended screw, with the lower parts of the two limiting plates in contact with the upper surface of the conveyor belt.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] 1. This application can dynamically adjust the nozzle spacing under the control of the first motor, thereby flexibly expanding or reducing the spray coverage area, and thus easily meeting the spraying needs of battery film electrodes of different widths. This not only significantly enhances the practicality of the equipment, but also effectively improves production efficiency and reduces material waste.

[0009] 2. This application can limit the two sides of the battery film electrode by using a limiting plate, ensuring the stability of the battery film electrode during transportation, thereby ensuring the quality of the spraying operation and improving the overall quality of the product. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic cross-sectional view of the support frame of this utility model.

[0013] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0014] Figure 4 This is a schematic diagram of the cross-sectional structure of the base of this utility model.

[0015] In the diagram: 1. Base; 101. Conveyor belt; 2. Support frame; 201. Housing; 202. First motor; 203. First double-ended screw; 204. Slider; 205. Slide groove; 206. First sliding block; 2061. Second sliding block; 207. First connecting rod; 208. Second connecting rod; 209. Nozzle; 210. Conduit; 211. First limiting rod; 212. Limiting block; 213. Box body; 214. Cylinder; 3. Limiting plate; 301. Second double-ended screw; 302. Handle; 303. Second limiting rod; 4. Ventilation device. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example: Figure 1-4As shown, this utility model provides a coating device for a fuel cell membrane electrode assembly, including a base 1, a conveyor belt 101 mounted on the upper part of the base 1, a support frame 2 fixedly mounted on one side of the top of the base 1, two symmetrically distributed housings 213 fixedly mounted on the top of the support frame 2, a housing 201 provided at the lower part of the support frame 2, a first double-ended screw 203 rotatably mounted in the middle of the housing 201, a drive assembly provided on one side of the first double-ended screw 203, a second sliding block 2061 fixedly mounted in the middle of the housing 201, and a plurality of symmetrically distributed first sliding blocks 206 in the middle of the housing 201, wherein the middle of two first sliding blocks 206 is threadedly mounted on the middle of the first double-ended screw 203, and the middle of the other two first sliding blocks 206 is slidably engaged on the outer surface of the first double-ended screw 203. Two symmetrically distributed first connecting rods 207 are rotatably mounted on one side of the housing 201. Two symmetrically distributed second connecting rods 208 are rotatably mounted on the middle of one side of the other two first sliding blocks 206 and second sliding blocks 2061, and the second connecting rods 208 are rotatably mounted to each other. One side of the first connecting rod 207 is rotatably mounted on one end of the second connecting rod 208. Spray nozzles 209 are fixedly mounted on the middle of the bottom end of the first sliding block 206 and the second sliding block 2061. A conduit 210 is fixedly mounted on one side of the lower part of the housing 201. The middle of the multiple spray nozzles 209 is fixedly mounted on the upper part of the conduit 210, and the spray nozzles 209 and the conduit 210 are interconnected. Both ends of the conduit 210 are fixedly mounted on the bottom end of the housing 213. A cylinder 214 is fixedly mounted on the middle of the top end of the support frame 2, and the driving end of the cylinder 214 is fixedly mounted on the middle of the top end of the housing 201.

[0018] A second double-ended screw 301 is rotatably mounted on the lower part of the base 1. Two symmetrically distributed limiting plates 3 are threaded on the upper part of the second double-ended screw 301. The lower parts of the two limiting plates 3 are in contact with the upper surface of the conveyor belt 101.

[0019] The drive assembly includes a first motor 202, which is fixedly installed inside one side of the housing 201. One end of the first double-ended screw 203 is fixedly installed on the drive end of the first motor 202. By setting the first motor 202, the first double-ended screw 203 can be driven to rotate under the drive of the first motor 202.

[0020] Slider 204 is fixedly installed on both sides of the housing 201. Slide grooves 205 are opened on the opposite sides of the lower part of the support frame 2. The two sliders 204 are slidably locked inside the slide grooves 205. By setting the slide grooves 205 and sliders 204, when facing battery film electrodes of different shapes and materials, the housing 201 can be moved up and down under the drive of the cylinder 214 to adjust the height of its nozzle 209. The slide grooves 205 limit the sliders 204, thereby limiting the housing 201 and ensuring that the housing 201 is more stable when moving up and down.

[0021] A first limiting rod 211 is fixedly installed on the upper part of the housing 201. Limiting blocks 212 are fixedly installed on the top of the first sliding block 206 and the second sliding block 2061. Multiple limiting blocks 212 are slidably locked on the outer surface of the first limiting rod 211. By setting the first limiting rod 211, multiple first sliding blocks 206 can be limited, ensuring that the movement of the first sliding blocks 206 is more stable.

[0022] A ventilation device 4 is fixedly installed on one side of the top of the base 1. By setting the ventilation device 4, the material on the upper part of the battery film electrode after spraying can be dried.

[0023] The lower part of the base 1 is fixed to two symmetrically distributed second limiting rods 303. The lower parts of the two limiting plates 3 are slidably locked onto the outer surface of the second limiting rods 303. By setting the second limiting rods 303, the limiting plates 3 can be supported and limited, ensuring the stability of the limiting plates 3 when moving.

[0024] The second double-ended screw 301 is fixedly installed with a handle 302 through one side of the base 1. By setting the handle 302, rotating the handle 302 can drive the second double-ended screw 301 to rotate, that is, drive the two limit plates 3 to move relative to each other or away from each other.

[0025] Working principle: In actual use, when spraying battery film electrodes of different widths, the first double-headed screw 203 is driven by the first motor 202 to rotate, causing the first sliding blocks 206 at both ends to expand or contract towards the sides of the second sliding block 2061. Through the cooperation of the first connecting rod 207 and the second connecting rod 208, the two first sliding blocks 206 in the middle close to the second sliding block 2061 move, so that the multiple first sliding blocks 206 move at equal intervals, thereby driving the spray head 209 to move and adjusting the spacing between the spray heads 209, thereby expanding or shrinking the spraying area. While expanding or shrinking the spraying area, the amount of paint sprayed through the spray head 209 is controlled by the housing 213, thereby achieving the spraying of battery film electrodes of different widths.

[0026] By placing the battery film electrode material on the conveyor belt 101, the conveyor belt 101 is driven to rotate under the drive of the servo motor, thereby conveying the battery film electrode material placed on the upper part. By turning the handle 302, the second double-headed screw 301 is driven to rotate, so that the two limiting plates 3 move relative to each other and move closer to the sides of the battery film electrode material to limit it and prevent it from deviating. The paint is sprayed out through the nozzle 209 to spray the battery film electrode material. The sprayed battery film electrode material is conveyed by the conveyor belt 101 to the lower part of the ventilation device 4. The ventilation device 4 is activated to dry the material on the upper part of the sprayed battery film electrode material.

[0027] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An applicator for a fuel cell membrane electrode comprising a base (1), characterised in that: The upper part of the base (1) is provided with a conveyor belt (101), the top end of the base (1) is fixedly provided with a support frame (2), the top end of the support frame (2) is fixedly provided with two symmetrically distributed box bodies (213), the lower part of the support frame (2) is provided with a shell (201), the middle part of the shell (201) is rotatably provided with a first double-headed screw (203), one side of the first double-headed screw (203) is provided with a driving assembly, the middle part of the shell (201) is fixedly provided with a second sliding block (2061), the middle part of the shell (201) is provided with a plurality of symmetrically distributed first sliding blocks (206), the middle part of two of the first sliding blocks (206) is threadedly installed on the middle part of the first double-headed screw (203), the middle part of the other two first sliding blocks (206) is slidably clamped on the outer surface of the first double-headed screw (203), the middle part of two of the first sliding blocks (206) is rotatably provided with two symmetrically distributed first connecting rods (207), the middle part of the other two first sliding blocks (206) and the second sliding block (2061) is rotatably provided with two symmetrically distributed second connecting rods (208), the second connecting rods (208) are rotatably installed between each other, one side of the first connecting rod (207) is rotatably installed on one end of the second connecting rod (208), the bottom end of the first sliding block (206) and the second sliding block (2061) is fixedly provided with a spray head (209), one side of the bottom end of the shell (201) is fixedly provided with a conduit (210), the middle part of a plurality of the spray heads (209) is fixedly installed on the upper part of the conduit (210), and the spray head (209) and the conduit (210) are mutually penetrated, both ends of the conduit (210) are fixedly installed on the bottom end of the box body (213), the top end of the support frame (2) is fixedly provided with an air cylinder (214), and the top end of the shell (201) is fixedly installed on the driving end of the air cylinder (214).

2. The coating apparatus for a fuel cell membrane electrode according to claim 1, wherein The lower part of the base (1) is rotatably provided with a second double-headed screw (301), and the upper part of the second double-headed screw (301) is threadedly provided with two symmetrically distributed limiting plates (3).

3. The coating apparatus for a fuel cell membrane electrode as claimed in claim 1, wherein The driving assembly comprises a first motor (202), the first motor (202) is fixedly installed on one side of the inside of the shell (201), and one end of the first double-headed screw (203) is fixedly installed on the driving end of the first motor (202).

4. The coating apparatus for a fuel cell membrane electrode as claimed in claim 1, wherein Both sides of the shell (201) are fixedly provided with sliding blocks (204), and the lower parts of the opposite sides of the support frame (2) are provided with sliding grooves (205), and both of the sliding blocks (204) are slidably clamped in the inside of the sliding groove (205).

5. The coating apparatus for a fuel cell membrane electrode as claimed in claim 1, wherein The upper part of the shell (201) is fixedly provided with a first limiting rod (211), the top of the first sliding block (206) and the second sliding block (2061) is fixedly provided with a limiting block (212), and the plurality of limiting blocks (212) are slidably clamped on the outer surface of the first limiting rod (211).

6. The coating apparatus for a fuel cell membrane electrode as claimed in claim 1, wherein The top side of the base (1) is fixedly provided with a ventilation device (4).

7. The coating apparatus for a fuel cell membrane electrode as claimed in claim 2, wherein The lower part of the base (1) is fixedly provided with two symmetrically distributed second limiting rods (303), and the lower part of the two limiting plates (3) is slidably clamped on the outer surface of the second limiting rod (303).

8. The coating apparatus for a fuel cell membrane electrode as claimed in claim 2, wherein The second double-head screw rod (301) is fixedly provided with a handle (302) penetrating through one side of the base (1).

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