Membrane electrode hot pressing mold

Abstract

The utility model discloses a membrane electrode hot-pressing die, which relates to the technical field of membrane electrode production and comprises a hot-pressing die bottom plate, a limit groove is arranged on one side of the hot-pressing die bottom plate, a groove protrusion is fixedly connected inside the limit groove, a silica gel pad is mounted inside the limit groove, and the silica gel pad is fixedly connected with the groove protrusion. According to the utility model, through the arrangement of the groove bulge, the edge-sealed five-in-one part is placed on the hot-pressing mold bottom plate by using the positioning rod, and the groove bulge is just at the three-in-one joint part, so that the contact pressure between the groove bulge and a hot press can be increased by the slight bulge; the hot melt adhesive at the sealing position is more attached, air can be effectively prevented from entering the hot melt adhesive, bubbles generated through heating are extruded, and the bubbles are prevented from being generated.

Description

Technical Field

[0001] The utility model relates to the technical field of membrane electrode production, in particular to a mold for hot pressing of membrane electrodes. Background Art

[0002] The definition of a membrane electrode is an electrode equipped with a membrane assembly in its structure. The membrane electrode is a component with a three-in-one structure, which consists of a diffusion layer, a catalytic layer, and an ion exchange membrane. The diffusion layer provides a mass transfer channel for the reaction gas and also functions as a current collector, usually made of graphitized carbon paper or carbon cloth.

[0003] In the prior art, during the encapsulation process of the membrane electrode, a hot press is required to perform pressure holding encapsulation on the five-in-one CCM. The hot press pressurizes and holds the pressure on the five-in-one CCM through a set temperature. The anode and cathode frames are sealed under high temperature and pressure, but bubbles still form during the hot pressing process, thus affecting the performance of the membrane electrode. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that in the prior art, during the encapsulation process of the membrane electrode, a hot press is required to perform pressure holding encapsulation on the five-in-one CCM. The hot press pressurizes and holds the pressure on the five-in-one CCM through a set temperature. The anode and cathode frames are sealed under high temperature and pressure, but bubbles still form during the hot pressing process, thus affecting the performance of the membrane electrode, and to propose a mold for hot pressing of membrane electrodes.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A mold for hot pressing of membrane electrodes, including a hot pressing mold bottom plate. A limiting groove is opened on one side of the hot pressing mold bottom plate. A groove protrusion is fixedly connected inside the limiting groove. A silica gel pad is installed inside the limiting groove. Connecting holes are opened at two diagonal corners of the hot pressing mold bottom plate.

[0006] Preferably, extension sleeves are fixedly connected to two corners on the other side of the hot pressing mold bottom plate, and the two extension sleeves are respectively communicated with the two connecting holes.

[0007] Preferably, an end limiting sleeve is arranged on the other side of the hot pressing mold bottom plate. Four corner parts of the end limiting sleeve are provided with fastening bolts. Threaded holes are opened on the other side of the hot pressing mold bottom plate, and the threaded holes are threadedly connected with the fastening bolts.

[0008] Preferably, side supporting blocks are fixedly connected to both sides of the middle part on one side of the end limiting sleeve, and a supporting groove is opened in the middle of the side supporting blocks.

[0009] Preferably, sliding grooves are formed in the middle of both sides of the end limit sleeve, and limiting sliders are slidably connected to the interiors of the two sliding grooves. A spring is fixedly connected between the interior of the limiting slider and the sliding groove.

[0010] Preferably, a pressing plate is fixedly connected to the upper end of the limiting slider. One side of the lower end of the pressing plate is designed to be inclined, and the upper end surface of the pressing plate coincides with the upper end surface of the end limit sleeve. In this way, there will be a gap between the upper part of the heat dissipation component and the upper end of the end limit sleeve, which can prevent the heat dissipation component from being squeezed by an object and prevent damage to the heat dissipation component. Moreover, the inclined surface below the pressing plate can facilitate the limitation of the heat dissipation component and is convenient for use.

[0011] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0012] 1. In the present utility model, through the arrangement of the groove protrusions, the five-in-one positioning rod after edge sealing is placed on the bottom plate of the hot pressing die. The groove protrusions are just the connection parts of the three-in-one. The slight protrusions can increase the pressure of its contact with the hot press, make the hot melt adhesive at the sealing part more fitting, effectively prevent air from entering, and squeeze the bubbles generated by heating to prevent the generation of bubbles.

[0013] 2. In the present utility model, through the arrangement of the extension sleeve, it is used to increase the stability during connection. Through the arrangement of the end limit sleeve, it is used to connect the heat dissipation component. Cooperating with the limiting slider and the pressing plate, the heat dissipation component can be quickly limited, which is convenient for installation. Moreover, this method ensures that there is no object squeezing the upper end of the heat dissipation component and guarantees the normal use of the heat dissipation component. Description of the Drawings

[0014] Figure 1 is a schematic three-dimensional structure diagram of a die for membrane electrode hot pressing proposed by the present utility model Figure 1 ;

[0015] Figure 2 is a schematic three-dimensional structure diagram of a die for membrane electrode hot pressing proposed by the present utility model Figure 2 ;

[0016] Figure 3 is a schematic three-dimensional structure diagram of the bottom plate of the hot pressing die in a die for membrane electrode hot pressing proposed by the present utility model Figure 1 ;

[0017] Figure 4 is a schematic three-dimensional structure diagram of the bottom plate of the hot pressing die in a die for membrane electrode hot pressing proposed by the present utility model Figure 2 ;

[0018] Figure 5 is a schematic three-dimensional structure diagram of the silica gel pad in a die for membrane electrode hot pressing proposed by the present utility model;

[0019] Figure 6 The present utility model provides an exploded view of the connection state between the end limit sleeve and the limiting slider in the middle of a mold for hot pressing a membrane electrode.

[0020] Legend: 1. Hot pressing mold bottom plate; 2. Silicone pad; 3. Connection hole; 4. Extension sleeve; 5. End limit sleeve; 6. Side support block; 7. Support groove; 8. Pressing plate; 9. Limiting slider; 10. Fastening bolt; 11. Threaded hole; 12. Limiting groove; 13. Groove protrusion; 14. Slide groove; 15. Spring. Specific implementation mode

[0021] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0022] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited to the limitations of the specific embodiments disclosed in the following specification.

[0023] Embodiment 1: As Figure 1 - Figure 5 shown, the present utility model provides a mold for hot pressing a membrane electrode, including a hot pressing mold bottom plate 1. A limiting groove 12 is opened on one side of the hot pressing mold bottom plate 1. A groove protrusion 13 is fixedly connected inside the limiting groove 12. A silicone pad 2 is installed inside the limiting groove 12. Connection holes 3 are opened at two diagonal corners of the hot pressing mold bottom plate 1.

[0024] The following specifically describes the specific settings and functions of this embodiment. Through the setting of the groove protrusion 13, the five-in-one positioning rod after edge sealing is placed on the hot pressing mold bottom plate 1. The groove protrusion 13 is just the three-in-one connection part. The slight protrusion can increase the pressure of its contact with the hot press, make the hot melt adhesive at the sealing part more fitting, effectively prevent air from entering, and squeeze the bubbles generated by heating to prevent the generation of bubbles.

[0025] Embodiment 2: As Figure 1 - Figure 6As shown in the figure, extension sleeves 4 are fixedly connected to both corners on the other side of the hot pressing die bottom plate 1. The two extension sleeves 4 are respectively communicated with the two connecting holes 3. A terminal limit sleeve 5 is arranged on the other side of the hot pressing die bottom plate 1. Fixing bolts 10 are arranged at all four corners of the terminal limit sleeve 5. Threaded holes 11 are formed in the other side of the hot pressing die bottom plate 1. The threaded holes 11 are in threaded connection with the fixing bolts 10. Side supporting blocks 6 are fixedly connected to both sides of the middle part on one side of the terminal limit sleeve 5. A supporting groove 7 is formed in the middle of the side supporting block 6. Sliding grooves 14 are formed in the middle of both sides of the terminal limit sleeve 5. Limiting sliders 9 are slidably connected to the interiors of the two sliding grooves 14. A spring 15 is fixedly connected between the interior of the limiting slider 9 and the sliding groove 14. The upper end of the limiting slider 9 is fixedly connected to a pressing plate 8. One side of the lower end of the pressing plate 8 is of an inclined design, and the upper end surface of the pressing plate 8 coincides with the upper end surface of the terminal limit sleeve 5. In this way, there will be a gap between the upper part of the heat dissipation component and the upper end of the terminal limit sleeve 5, which can prevent the heat dissipation component from being squeezed by an object and prevent the heat dissipation component from being damaged. Moreover, the inclined surface below the pressing plate 8 can facilitate the limitation of the heat dissipation component and is convenient to use.

[0026] The overall effect achieved by the entire embodiment is that through the setting of the extension sleeve 4, it is used to increase the stability during connection. Through the setting of the terminal limit sleeve 5, it is used to connect the heat dissipation component. Cooperating with the limiting slider 9 and the pressing plate 8, the heat dissipation component can be quickly limited, which is convenient for installation. And this method ensures that there is no object pressing on the upper end of the heat dissipation component, guaranteeing the normal use of the heat dissipation component. The side supporting block 6 and the supporting groove 7 are used to support the connecting pipeline of the heat dissipation component.

[0027] The usage method and working principle of this device: When in use, install this device on the membrane electrode hot press, and install the heat dissipation component therein in the terminal limit sleeve 5. During installation, pull the limiting slider 9 to make one side of the pressing plate 8 coincide with the inner wall of the terminal limit sleeve 5, then place the heat dissipation component into the terminal limit sleeve 5, and then release the limiting slider 9 to make the pressing plate 8 move to limit the upper part of the heat dissipation component. Subsequently, connect the extension sleeve 4 to the corresponding installation component. When encapsulating the membrane electrode, place the five-in-one with the edge sealed and using the positioning rod on the hot pressing die bottom plate 1. The groove protrusion 13 is just the three-in-one connection part. The slight protrusion can increase the pressure of its contact with the hot press, making the hot melt adhesive at the sealing part more fitting, which can effectively prevent air from entering and squeeze the bubbles generated by heating to prevent the generation of bubbles.

[0028] The above is only the preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical content of the technical solution of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A membrane electrode hot pressing mold, comprising a hot pressing mold bottom plate (1), characterized in that: A limiting groove (12) is provided on one side of the hot pressing mold base plate (1), a groove protrusion (13) is fixedly connected to the interior of the limiting groove (12), a silicone pad (2) is installed inside the limiting groove (12), and two diagonal corners of the hot pressing mold base plate (1) are provided with connection holes (3).

2. A membrane electrode hot pressing mold according to claim 1, characterized in that: The two corners on the other side of the hot pressing mold bottom plate (1) are both fixedly connected with extension sleeves (4), and the two extension sleeves (4) are respectively connected to the two connection holes (3).

3. The membrane electrode hot pressing mold according to claim 1, characterized in that: An end limit sleeve (5) is arranged on the other side of the hot pressing mold bottom plate (1), and fastening bolts (10) are arranged at four corners of the end limit sleeve (5). A threaded hole (11) is opened on the other side of the hot pressing mold bottom plate (1), and the threaded hole (11) is threadedly connected to the fastening bolt (10).

4. A membrane electrode hot pressing mold according to claim 3, characterized in that: Side support blocks (6) are fixedly connected to both sides of the middle of one side of the end limit sleeve (5), and a bracket groove (7) is provided in the middle of the side support block (6).

5. A membrane electrode hot pressing mold according to claim 4, characterized in that: A slide groove (14) is provided in the middle of both sides of the end limit sleeve (5), and a limiting slider (9) is slidably connected inside the two slide grooves (14), and a spring (15) is fixedly connected between the inside of the limiting slider (9) and the slide groove (14).

6. A membrane electrode hot pressing mold according to claim 5, characterized in that: The upper end of the limiting slider (9) is fixedly connected to a pressing plate (8), one side of the lower end of the pressing plate (8) is designed to be inclined, and the upper end surface of the pressing plate (8) coincides with the upper end surface of the end limit sleeve (5).

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