A fixture for fuel cell compression molding plate impregnation

Abstract

The utility model belongs to fuel cell technical field, concretely is a kind of fuel cell mould pressing plate impregnation use fixed clamp, including clamping plate, two the clamping plate cooperation is carried out to mould pressing plate and is clamped, fixed component for being used to being connected with adjacent clamping plate is equipped on the clamping plate, the fixed component includes the insertion slot in the upper end surface of clamping plate and the plug block in the lower end surface of clamping plate with the insertion slot corresponding, the clamping plate is also equipped with the support rod for supporting mould pressing plate, the utility model two clamping plate cooperation is fixed to mould pressing plate and is clamped, on the one hand, mould pressing plate can be fixed, prevent mould pressing plate when carrying out impregnation process, lack fixed component and make mould pressing plate produce knock, influence the quality of product, and through fixed clamp can be fixed to multiple mould pressing plate simultaneously, so that it carries out impregnation work simultaneously, effectively improved the efficiency of impregnation, and through fixed clamp is favorable to mould pressing plate impregnation uniform, further improve the quality of product.

Description

Technical Field

[0001] This utility model relates to the field of fuel cell technology, specifically to a fixing fixture for impregnating fuel cell molded plates. Background Technology

[0002] With the development of modern clean energy, proton exchange membrane fuel cells have become an important part of the national new energy strategy due to their characteristics of being pollution-free, having high energy conversion efficiency, fast start-up, and high specific power. They have very broad application prospects and are of great significance to environmental protection and sustainable development.

[0003] Bipolar plates are one of the core components of proton exchange membrane fuel cells (PEMFCs). Their main functions include transporting gas through the flow field on their surface, collecting and conducting the current, heat, and water generated in the reaction, and providing mechanical support for the membrane electrode assembly. They account for approximately 60%-80% of the weight of a PEMFC stack and about 30% of its cost. Based on the functional requirements of bipolar plates, and considering the acidic electrochemical reaction environment of PEMFCs, high requirements are placed on bipolar plates for conductivity, airtightness, mechanical properties, and corrosion resistance.

[0004] For metal bipolar plates, graphite bipolar plates have better electrical conductivity, thermal conductivity, stability, and corrosion resistance. Currently, the production process of molded graphite plates requires impregnation. The molded plates are repeatedly impregnated and carbonized to produce non-porous bipolar plates with good airtightness. In the existing impregnation process, the molded plates are generally placed in an impregnation basket and then placed in the impregnation liquid. On the one hand, the impregnation basket lacks a fixing mechanism, which may cause the molded plates to bump and knock during the impregnation process, and there is also the problem of uneven impregnation. Utility Model Content

[0005] In order to overcome the above-mentioned defects in the prior art, the present invention provides a fixing fixture for impregnating fuel cell molded plates.

[0006] A fixing fixture for impregnating fuel cell molded plates includes clamping plates. Two clamping plates cooperate to clamp the molded plates. The clamping plates are provided with fixing components for connecting with adjacent clamping plates. The fixing components include slots located on the upper surface of the clamping plates and inserts located on the lower surface of the clamping plates corresponding to the slots. The clamping plates are also provided with support rods for supporting the molded plates.

[0007] Furthermore, the clamping plate is a rectangular frame structure enclosed by two supporting long sides and supporting short sides, and the supporting rods are evenly distributed along the length direction of the molding plate according to the size of the molding plate.

[0008] Furthermore, the upper end face of the clamping plate is provided with a first abutting protrusion, and the lower end face of the clamping plate is provided with a second abutting protrusion. The first abutting protrusion and the second abutting protrusion are staggered in the horizontal direction, and the side wall of the first abutting protrusion abuts against the side wall of the second abutting protrusion on the adjacent clamping plate.

[0009] Furthermore, the clamp is provided with flow guide holes.

[0010] The surface of the support rod is covered with an elastic buffer layer.

[0011] Due to the adoption of the above technical solutions, the beneficial technical effects of this utility model are as follows: The two clamping plates of this utility model cooperate to fix and hold the molding plate. On the one hand, it can fix the molding plate and prevent it from being bumped and damaged during the impregnation process due to the lack of fixing components, which would affect the quality of the product. On the other hand, the fixing clamps can fix multiple molding plates at the same time, thereby impregnating multiple molding plates simultaneously, which effectively improves the impregnation efficiency. Furthermore, the fixing clamps are conducive to the uniform impregnation of the molding plates, further improving the quality of the product. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a fixing fixture for impregnating a fuel cell molded plate according to the present invention;

[0013] Figure 2 This is a front view of a fixing fixture for impregnating a fuel cell molded plate according to the present invention;

[0014] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0015] Figure 4 This utility model Figure 1 Enlarged view of region B in the middle;

[0016] Figure 5 This utility model Figure 3 A magnified view of region C in the middle.

[0017] In the diagram: 1. Clamping plate; 2. Slot; 3. Insert block; 4. Support rod; 5. Supporting long side; 6. Supporting short side; 7. First abutting protrusion; 8. Second abutting protrusion; 9. Guide hole. Detailed Implementation

[0018] To more clearly illustrate the technical solution of this utility model, the following description is made in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings and embodiments without creative effort, and all of them fall within the protection scope of this utility model.

[0019] according to Figure 1-5 As shown, a fixing fixture for impregnating a fuel cell molded plate includes clamping plates 1. Two clamping plates 1 cooperate to clamp the molded plate. The clamping plates 1 are provided with fixing components for connecting with adjacent clamping plates 1. The fixing components include slots 2 located on the upper end face of the clamping plates 1 and inserts 3 located on the lower end face of the clamping plates 1 corresponding to the slots 2. The clamping plates 1 are also provided with support rods 4 for supporting the molded plate.

[0020] In the above-mentioned specific technical solution, the two clamping plates 1 work together to fix and hold the molding plate. On the one hand, the molding plate can be fixed to prevent it from being bumped and damaged during the impregnation process due to the lack of fixing components, which would affect the quality of the product. On the other hand, the fixing clamps can fix multiple molding plates at the same time, thereby performing impregnation work on multiple molding plates simultaneously, which effectively improves the impregnation efficiency. Furthermore, the fixing clamps are conducive to uniform impregnation of the molding plates, further improving the quality of the product.

[0021] Specifically, when impregnating the molding plate, several molding plates are first arranged on the upper surface of the clamping plate 1, and then another clamping plate 1 is placed on the molding plate, and the slot 2 on the clamping plate 1 is inserted into the insert block 3 of the adjacent clamping plate 1, thereby fixing the molding plate.

[0022] The clamping plate 1 is a rectangular frame structure enclosed by two supporting long sides 5 and supporting short sides 6, and the supporting rods 4 are distributed at equal intervals along the length direction of the molding plate according to the size of the molding plate.

[0023] In the above specific technical solution, when producing the fixing fixture, the workers can arrange the distance of the support rods 4 according to the size of the molding plate, so that the support rods 4 can effectively support the molding plate, and the fixing fixture has strong applicability.

[0024] The upper surface of the clamping plate 1 is provided with a first abutting protrusion 7, and the lower surface of the clamping plate 1 is provided with a second abutting protrusion 8. The first abutting protrusion 7 and the second abutting protrusion 8 are staggered in the horizontal direction, and the sidewalls of the first abutting protrusion 7 and the second abutting protrusion 8 on the adjacent clamping plate 1 abut against each other. When the insert block 3 and the slot 2 of the two adjacent clamping plates 1 are in the insertion state, the sidewalls of the first abutting protrusion 7 and the second abutting protrusion 8 of the two adjacent clamping plates 1 abut against each other. This further enhances the stability of the connection between the two clamping plates 1.

[0025] The clamping plate 1 is provided with guide holes 9. During the impregnation process, excess impregnation liquid can be smoothly discharged through these guide holes 9, ensuring that the impregnation liquid is evenly distributed on the surface of the molding plate and avoiding local over- or under-impregnation.

[0026] The surface of the support rod 4 is covered with an elastic buffer layer to prevent damage to the surface of the molding plate.

[0027] The above embodiments are merely exemplary embodiments of the present utility model and are not intended to limit the present utility model. The scope of protection of the present utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present utility model.

Claims

1. A fixed jig for use in impregnation of a fuel cell pressboard, comprising a clamp plate (1), characterized in that, The two clamping plates (1) cooperate to clamp the molding plate. The clamping plate (1) is provided with a fixing component for connecting with the adjacent clamping plate (1). The fixing component includes a slot (2) located on the upper end face of the clamping plate (1) and a plug (3) located on the lower end face of the clamping plate (1) corresponding to the slot (2). The clamping plate (1) is also provided with a support rod (4) for supporting the molding plate.

2. The fixing fixture for impregnating fuel cell molded plates according to claim 1, characterized in that, The clamping plate (1) is a rectangular frame structure enclosed by two supporting long sides (5) and supporting short sides (6), and the supporting rods (4) are equidistantly distributed along the length direction of the molding plate according to the size of the molding plate.

3. A fixing fixture for impregnating fuel cell molded plates according to claim 2, characterized in that, The upper end face of the clamp (1) is provided with a first abutting protrusion (7), and the lower end face of the clamp (1) is provided with a second abutting protrusion (8). The first abutting protrusion (7) and the second abutting protrusion (8) are staggered in the horizontal direction, and the side wall of the first abutting protrusion (7) and the second abutting protrusion (8) on the adjacent clamp (1) abuts.

4. A fixing fixture for impregnating fuel cell molded plates according to claim 3, characterized in that, The clamp (1) is provided with a flow guide hole (9).

5. A fixing fixture for impregnating fuel cell molded plates according to claim 1, characterized in that, The surface of the support rod (4) is covered with an elastic buffer layer.

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