Membrane electrode assembling jig

Abstract

The utility model discloses a membrane electrode assembling jig which comprises a bottom layer assembly and a middle layer assembly connected with the bottom layer assembly in a rotating mode, the middle layer assembly comprises a frame body capable of containing a membrane electrode and a positioning assembly arranged on the frame body, and an upper layer assembly capable of being inserted into the frame body is arranged above the middle layer assembly. The bottom layer assembly comprises a bottom shell and a partition plate arranged above the bottom shell, a cavity used for containing a lamp is formed in the bottom shell, concave parts are further arranged on the side edges of the frame body, first protrusions capable of being matched with the concave parts are arranged on the side faces of the bottom shell, and the positioning assembly is arranged on the frame body, so that the assembly precision can be guaranteed; according to the membrane electrode assembly device, the negative electrode surface and the positive electrode surface of the membrane electrode are prevented from being placed reversely or placed reversely, the partition plate made of a transparent material component is arranged above the bottom shell, so that the light transmission degree and the coating condition of the five layers of membrane electrodes can be checked in time before the membrane electrodes are attached, and the subsequent assembly efficiency can be guaranteed, and the membrane electrode assembly device belongs to the field of membrane electrode assembly.

Description

Technical Field

[0001] This utility model belongs to the field of membrane electrode assembly, and more specifically relates to a membrane electrode assembly fixture. Background Technology

[0002] The common practice for membrane electrode assembly is manual assembly by operators or semi-automatic assembly with the assistance of equipment. The proton exchange membrane itself is very thin and easily absorbs moisture from the air. Misalignment is likely to occur when manually attaching the gas diffusion layer (GDL) of the sheet and the five-layer membrane electrode. Moreover, before attaching the gas diffusion layer (GDL) to the five-layer membrane electrode, it is not possible to observe in time whether there are perforations or coating peeling in the CCM, which may lead to the scrapping of subsequent processes and seriously affect the assembly efficiency. Utility Model Content

[0003] The main objective of this invention is to provide a membrane electrode assembly fixture that can solve the above-mentioned problems.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A membrane electrode assembly fixture includes a bottom layer assembly and a middle layer assembly rotatably connected to the bottom layer assembly. The middle layer assembly is located above the bottom layer assembly. The middle layer assembly includes a frame for placing the membrane electrode and a positioning component disposed on the frame. An upper layer assembly is disposed above the middle layer assembly and can be inserted into the frame. The bottom layer assembly includes a bottom shell and a partition made of transparent material disposed above the bottom shell. The bottom shell has a cavity for placing a lamp. A recess is also provided on the side of the frame. A first protrusion is provided on the side of the bottom shell that can cooperate with the recess.

[0006] According to a first aspect of the present invention, the positioning component includes three first positioning pins spaced apart and at least one second positioning pin, wherein the diameter of the second positioning pin is larger than the diameter of the first positioning pin.

[0007] According to a first aspect of the present invention, the first positioning pin and the second positioning pin are respectively disposed at the four corners of the frame.

[0008] According to a first aspect of the present invention, the bottom component further includes a pivot for connecting the bottom shell and the frame, and the opening of the cavity is provided with a mounting groove for accommodating the partition.

[0009] According to a first aspect of the present invention, the size of the frame is larger than the size of the bottom shell, and the size of the partition is smaller than the size of the frame.

[0010] According to a first aspect of the present invention, a U-shaped groove is provided on the side of the bottom shell near the rotating shaft, and the length of the U-shaped groove is the same as the width of the bottom shell.

[0011] According to a first aspect of the present invention, the middle layer component further includes a rectangular plate disposed between the frame and the upper layer component, the rectangular plate having a plurality of positioning holes corresponding to the positioning component.

[0012] According to a first aspect of the present invention, the frame is provided with grooves on both sides for easy handling of the rectangular plate and the membrane electrode.

[0013] According to a first aspect of the present invention, the lower end face of the upper component is provided with a second protrusion that can be inserted into the frame, and the upper end face of the upper component is provided with at least two weight-reducing holes in parallel.

[0014] According to a first aspect of the present invention, the upper component has convex surfaces at both ends for easy handling.

[0015] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0016] This invention facilitates operation by rotatably connecting the bottom and middle components. The positioning components on the frame ensure assembly accuracy and prevent the cathode and anode surfaces of the membrane electrode from being reversed or facing in the wrong direction. Furthermore, by setting a partition made of transparent material above the bottom shell, the light transmittance and coating condition of the five membrane electrodes can be checked in time before bonding, ensuring subsequent assembly efficiency. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Appendix Figure 1 This is an overall structural diagram of one embodiment of the present utility model;

[0019] Appendix Figure 2 This is an exploded view of one embodiment of the present invention;

[0020] Appendix Figure 3 This is a side view of one embodiment of the present invention;

[0021] Appendix Figure 4 This is a top view of one embodiment of the present invention;

[0022] Appendix Figure 5 This is a bottom shell structure diagram of one embodiment of the present invention;

[0023] Appendix Figure 6 This is a top view of the frame of one embodiment of the present utility model. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include one or more features.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection or a connection that can communicate with each other; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements, an indirect connection, or an interaction between two elements.

[0029] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0030] Refer to the attached Figure 1 To be continued Figure 6 As shown, a membrane electrode assembly fixture includes a bottom component 1, a middle component 2 rotatably connected to the bottom component 1, and an upper component 3 disposed above the middle component 2, wherein the middle component 2 is located above the bottom component 1.

[0031] In one embodiment of this utility model, the middle layer component 2 includes a frame 21 for placing membrane electrodes, a positioning component disposed on the frame 21, and a rectangular plate 24 disposed between the frame 21 and the upper layer component 3. The positioning component includes three first positioning pins 22 and one second positioning pin 23 disposed at intervals. The first positioning pins 22 and the second positioning pins 23 are respectively disposed at the four corners of the frame 21, and the diameter of the second positioning pin 23 is larger than the diameter of the first positioning pin 22, thereby being used for material positioning and ensuring the correct installation of the anode and cathode surfaces.

[0032] In one embodiment of the present invention, four positioning holes 241 are provided on the rectangular plate 24 at the four corners of the rectangular plate 24, and the positions of the four positioning holes 241 correspond to the three first positioning pins 22 and the one second positioning pin 23 respectively. The inner contour of the rectangular plate 24 is consistent with the size of the gas diffusion layer (GDL).

[0033] In one embodiment of this utility model, the upper component 3 can be inserted into the frame 21 and pressed downward. The frame 21 has grooves 5 on both sides for easy access to the rectangular plate 24 and the membrane electrode. The two grooves 5 are arranged on opposite sides, and the inner contour dimension of the frame 21 corresponds to the outer contour of the cavity of the lower bottom shell 11.

[0034] In one embodiment of this utility model, the bottom component 1 includes a bottom shell 11, a partition 12 disposed above the bottom shell 11, and a pivot 13 for connecting the bottom shell 11 and the frame 21. A cavity for placing a lamp is provided inside the bottom shell 11, and an installation groove for accommodating the partition 12 is provided at the opening of the cavity. The partition 12 is a transparent material component, preferably acrylic or high borosilicate glass, and the distance from the partition 12 to the opening of the cavity is exactly the thickness of the gas diffusion layer. The inner contour of the opening of the cavity is the size of the gas diffusion layer. Thus, the light transmittance and coating condition of the five-layer film electrode can be checked in time before bonding, ensuring the efficiency of subsequent assembly.

[0035] In one embodiment of the present invention, a recess 211 is provided on the side of the frame 21, and a first protrusion 111 that can cooperate with the recess 211 is provided on the side of the bottom shell 11, so that the frame 21 can be fixed with the bottom component 1 after it is flipped.

[0036] In one embodiment of this utility model, the size of the frame 21 is larger than the size of the bottom shell 11, and the size of the partition 12 is smaller than the size of the frame 21. A U-shaped groove 4 is provided on the side of the bottom shell 11 near the rotating shaft 13. The length of the U-shaped groove 4 is the same as the width of the bottom shell 11, so as to effectively control the overall weight of the membrane electrode assembly fixture while ensuring the overall strength.

[0037] In one embodiment of the present invention, the lower end face of the upper component 3 is provided with a second protrusion 31 that can be inserted into the frame 21, and the upper end face of the upper component 3 is provided with two weight-reducing holes 32 in parallel. The weight-reducing holes 32 are arranged along the width direction of the upper component 3, and the two ends of the upper component 3 are respectively provided with convex surfaces 33 for easy picking.

[0038] The steps for using this membrane electrode assembly fixture are as follows:

[0039] First, place five layers of membrane electrodes on the frame 21. The positioning holes on the membrane electrodes correspond to the first positioning pin 22 and the second positioning pin 23 on the frame 21. Since the diameter of the second positioning pin 23 is larger than the diameter of the first positioning pin 22, if the front or back or the direction of the membrane electrode is wrong, it cannot be placed on the frame 21.

[0040] Second, turn on the power supply of the lamp in the bottom shell 11 cavity. By shining the light through the lamp, the light transmittance of the five-layer film electrode CCM can be checked, and the surface coating of the five-layer film electrode CCM can be evaluated.

[0041] Third, flip the frame 21, place the lower gas diffusion layer GDL on the partition 12, and then flip the frame 21 back and put it on the bottom shell 11.

[0042] Fourth, place a rectangular plate 24 on the frame 21, with the positioning hole 241 on the rectangular plate 24 corresponding to the first positioning pin 22 and the second positioning pin 23 on the frame 21.

[0043] Fifth, place the upper gas diffusion layer GDL into the inner contour of the rectangular plate 24;

[0044] Sixth, place the upper component 3 and apply downward pressure through the upper component 3. Under the action of pressure, the adhesive will make the gas diffusion layer GDL adhere to the five-layer membrane electrode.

[0045] Seventh, take out the upper component 3, the rectangular plate 24 and the completed seven-layer membrane electrode in sequence.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A membrane electrode assembly fixture, characterized in that, The assembly includes a bottom component (1) and a middle component (2) rotatably connected to the bottom component (1). The middle component (2) is located above the bottom component (1). The middle component (2) includes a frame (21) for placing a membrane electrode and a positioning component disposed on the frame (21). An upper component (3) is disposed above the middle component (2) and can be inserted into the frame (21). The bottom component (1) includes a bottom shell (11) and a partition (12) of a transparent material component disposed above the bottom shell (11). The bottom shell (11) has a cavity for placing a lamp. A recess (211) is also provided on the side of the frame (21). A first protrusion (111) is provided on the side of the bottom shell (11) that can cooperate with the recess (211).

2. The membrane electrode assembly fixture according to claim 1, characterized in that: The positioning component includes three first positioning pins (22) spaced apart and at least one second positioning pin (23), wherein the diameter of the second positioning pin (23) is larger than the diameter of the first positioning pin (22).

3. The membrane electrode assembly fixture according to claim 2, characterized in that: The first positioning pin (22) and the second positioning pin (23) are respectively located at the four corners of the frame (21).

4. The membrane electrode assembly fixture according to claim 1, characterized in that: The bottom component (1) also includes a pivot (13) for connecting the bottom shell (11) and the frame (21), and the opening of the cavity is provided with a mounting groove for accommodating the partition (12).

5. The membrane electrode assembly fixture according to claim 4, characterized in that: The size of the frame (21) is larger than the size of the bottom shell (11), and the size of the partition (12) is smaller than the size of the frame (21).

6. The membrane electrode assembly fixture according to claim 4, characterized in that: The bottom shell (11) has a U-shaped groove (4) on the side near the rotating shaft (13), and the length of the U-shaped groove (4) is the same as the width of the bottom shell (11).

7. The membrane electrode assembly fixture according to claim 1, characterized in that: The middle layer component (2) also includes a rectangular plate (24) disposed between the frame (21) and the upper layer component (3), and the rectangular plate (24) is provided with a plurality of positioning holes (241) corresponding to the positioning component.

8. The membrane electrode assembly fixture according to claim 7, characterized in that: The frame (21) has grooves (5) on both sides for easy access to the rectangular plate (24) and the membrane electrode.

9. The membrane electrode assembly fixture according to claim 1, characterized in that: The lower end face of the upper component (3) is provided with a second protrusion (31) that can be inserted into the frame (21), and the upper end face of the upper component (3) is provided with at least two weight reduction holes (32) in parallel.

10. The membrane electrode assembly fixture according to claim 9, characterized in that: The upper component (3) has convex surfaces (33) at both ends for easy handling.

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