Hot-pressing packaging device

During the hot-pressing packaging process of the proton exchange membrane fuel cell, regional hot pressing of the membrane electrodes was solved by using a hot press and a heating plate assembly to perform regional hot pressing on the membrane electrodes, which solved the problems of proton membrane failure, decomposition and volatility of toxic substances in the acid membrane, and the membrane electrode size deviation, and achieved improvement in the stability and performance of the membrane electrodes.

CN222735011UActive Publication Date: 2025-04-08ANHUI RUIHE POWER TECH CO LTD
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Patent Information

Application Number
CN202421261051.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-04
Publication Date
2025-04-08
Estimated Expiration
2034-06-04

AI Technical Summary

Technical Problem

During the production process of proton exchange membrane fuel cells, hot-pressure encapsulation leads to failure of proton membranes, decomposition and volatilization of toxic substances in the acid membrane, and the membrane electrodes tend to shrink at high temperatures, affecting dimensional deviations.

Method used

A hot press packaging device including a hot press and a heating plate assembly is adopted. The heating plate assembly is composed of an upper heating plate and a lower heating plate. The upper heating plate and the lower heating plate are respectively arranged on both sides of the membrane electrode, and the upper frame of the membrane electrode is heat-pressed and encapsulated through the first heating plate and the second heating plate. At the same time, the effective reaction area of ​​the membrane electrode is protected by the first constant temperature plate and the second constant temperature plate to avoid heating of the proton membrane or CCM.

Benefits of technology

It effectively avoids proton membrane failure, decomposition and volatility of toxic substances in the acid membrane, and reduces the size deviation of the membrane electrode, ensuring the stability and performance of the membrane electrode.

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Abstract

The hot-pressing packaging device comprises a hot press and a heating plate assembly, the heating plate assembly comprises an upper heating plate and a lower heating plate, the upper heating plate and the lower heating plate are arranged on the two sides of a membrane electrode respectively, the upper heating plate comprises a first heating plate and a first constant-temperature plate, and the lower heating plate comprises a second heating plate and a second constant-temperature plate. The first heating plate and the second heating plate can perform hot-pressing packaging on the upper frame position of the membrane electrode, the first constant-temperature plate and the second constant-temperature plate can protect a proton exchange membrane or a CCM in an effective area of the membrane electrode, and the temperature is kept constant during hot-pressing packaging of the frame, so that regional hot pressing is performed on the membrane electrode, the failure of the proton membrane is avoided, and the service life of the membrane electrode is prolonged. According to the hot-pressing packaging device, the membrane electrode can be packaged in a hot-pressing mode, the proton membrane can be prevented from losing efficacy, the toxic substances in the acid membrane can be prevented from being decomposed and volatilized, and the size deviation of the membrane electrode can be reduced. The hot-pressing packaging device can conduct hot-pressing packaging on the membrane electrode, can prevent the proton membrane from losing efficacy, and can prevent the toxic substances in the acid membrane from being decomposed and volatilized.
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Description

Technical Field

[0001] The utility model belongs to the technical field of hydrogen fuel cells, and specifically relates to a hot pressing packaging device. Background Art

[0002] Proton exchange membrane fuel cells can directly convert hydrogen into electrical energy and are one of the most promising new energy technologies in the future. During the production process of proton exchange membrane fuel cells, the membrane electrode needs to be hot-pressed and packaged to ensure the bonding stability between the proton membrane and the frame. The frame is hot-pressed at a temperature of 100°C to 160°C, which can easily lead to failure of the proton membrane at normal operating temperature, and decomposition and volatilization of toxic substances in the acid membrane. The membrane electrode is prone to shrinkage under high temperature conditions, affecting dimensional deviation.

[0003] To solve the above problems, patent document 116779928A discloses a single-cell hot-pressed packaged metal plate fuel cell stack. The battery stack is mainly composed of a number of single cells stacked in sequence from top to bottom, two metal plates are symmetrically arranged at the upper and lower ends of the membrane electrode layer, and the metal plates are divided into a sealing frame structure area and a gas-liquid reaction area. The metal plate is provided with a circle of plate outer frames around the periphery, and a circle of water-side sealing frame grooves is provided along the inner side of the plate outer frame. The sealing frame structure area is provided with gas inlets and outlets and stack cooling water inlets and outlets, and a convex structure is provided on the gas-liquid distribution area. The reaction active area is mainly composed of the first wave corrugation convexity. The gas-liquid reaction area takes into account the distribution uniformity of hydrogen, oxygen and water. The interior of the single cell is pasted with thermosetting adhesive, but the above problems cannot be solved. Utility Model Content

[0004] The utility model is designed to solve the above problems, and aims to provide a hot-pressing packaging device that can perform hot-pressing packaging on membrane electrodes, can avoid proton membrane failure, can avoid decomposition and volatilization of toxic substances in acid membranes, and can reduce the size deviation of membrane electrodes. In order to achieve the above purposes, the technical solutions adopted by the utility model are:

[0005] The utility model provides a hot pressing packaging device, which has the following characteristics: it includes a hot press and a heating plate assembly, the heating plate assembly includes an upper heating plate and a lower heating plate, the upper heating plate and the lower heating plate are respectively arranged on both sides of the membrane electrode, the upper heating plate includes a first heating plate and a first constant temperature plate, and the lower heating plate includes a second heating plate and a second constant temperature plate.

[0006] The hot pressing packaging device provided by the utility model may also have such a feature that the first heating plate corresponds to the position of the hot pressing packaging area of ​​the upper frame of the membrane electrode, and the second heating plate corresponds to the position of the hot pressing packaging area of ​​the upper frame of the membrane electrode.

[0007] The hot pressing packaging device provided by the present invention may also have the following characteristics: the first constant temperature plate corresponds to the position of the effective reaction area on the membrane electrode, and the second constant temperature plate corresponds to the position of the effective reaction area on the membrane electrode.

[0008] The hot pressing packaging device provided by the utility model may also have such a feature that a first positioning groove is provided on the first heating plate, and a second positioning groove is provided on the second heating plate.

[0009] The hot pressing packaging device provided by the utility model may also have such a feature that the hot press includes a driving cylinder, a pressing block and a supporting plate, the output end of the driving cylinder is connected to the pressing block, the upper heating plate is arranged on the pressing block, the lower heating plate is arranged on the supporting plate, and the pressing block is located above the supporting plate.

[0010] The hot pressing packaging device provided by the utility model may also have such a feature that the hot pressing machine also includes a frame, and a foot support is provided at the bottom of the frame.

[0011] The hot pressing packaging device provided by the utility model may also have such a feature that an operation screen is provided on the frame.

[0012] The technical effect of the utility model is as follows: the hot pressing packaging device provided by the utility model includes a hot press and a heating plate assembly, the heating plate assembly includes an upper heating plate and a lower heating plate, the upper heating plate and the lower heating plate are respectively arranged on both sides of the membrane electrode, the upper heating plate includes a first heating plate and a first constant temperature plate, the lower heating plate includes a second heating plate and a second constant temperature plate, the first heating plate and the second heating plate can perform hot pressing packaging on the upper frame position of the membrane electrode, the first constant temperature plate and the second constant temperature plate can protect the effective reaction area proton membrane or CCM of the membrane electrode, thereby performing regional hot pressing on the membrane electrode, avoiding failure of the proton membrane, avoiding decomposition and volatilization of toxic substances in the acid membrane, and reducing the size deviation of the membrane electrode.

[0013] Therefore, the hot-pressing packaging device provided by the utility model can perform hot-pressing packaging on the membrane electrode, can avoid proton membrane failure, can avoid decomposition and volatilization of toxic substances in the acid membrane, and can reduce the dimensional deviation of the membrane electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] This specification includes the following drawings, which show the following contents:

[0015] Figure 1 It is a structural schematic diagram of a hot pressing packaging device in an embodiment of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the upper heating plate in the embodiment of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the lower heating plate in an embodiment of the utility model.

[0018] Marked in the figure: 10-hot press, 11-frame, 12-foot support, 13-driving cylinder, 14-pressing block, 15-supporting plate, 16-operating screen, 20-heating plate assembly, 21-upper heating plate, 211-first heating plate, 212-first constant temperature plate, 213-first positioning groove, 22-lower heating plate, 221-second heating plate, 222-second constant temperature plate, 223-second positioning groove. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the specific implementation methods of the utility model by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the utility model concept and technical solution of the utility model and facilitating its implementation.

[0020] Figure 1 It is a structural schematic diagram of a hot pressing packaging device in an embodiment of the utility model.

[0021] like Figure 1 As shown, the hot pressing packaging device provided by the utility model includes a hot press 10 and a heating plate assembly 20, the heating plate assembly 20 includes an upper heating plate 21 and a lower heating plate 22, the upper heating plate 21 and the lower heating plate 22 are respectively arranged on both sides of the membrane electrode, the upper heating plate 21 includes a first heating plate 211 and a first constant temperature plate 212, the lower heating plate 22 includes a second heating plate 221 and a second constant temperature plate 222, the first heating plate 211 and the second heating plate 221 can perform hot pressing packaging on the upper frame position of the membrane electrode, the first constant temperature plate 212 and the second constant temperature plate 222 can protect the proton membrane or CCM in the effective reaction area of ​​the membrane electrode, thereby performing regional hot pressing on the membrane electrode, avoiding failure of the proton membrane, avoiding decomposition and volatilization of toxic substances in the acid membrane, and reducing the size deviation of the membrane electrode.

[0022] Figure 2 It is a structural schematic diagram of the upper heating plate in the embodiment of the utility model; Figure 3 It is a structural schematic diagram of the lower heating plate in an embodiment of the utility model.

[0023] like Figure 2 and Figure 3As shown, the first heating plate 211 corresponds to the position of the hot-pressing packaging area of ​​the upper frame of the membrane electrode, and the second heating plate 221 corresponds to the position of the hot-pressing packaging area of ​​the upper frame of the membrane electrode. The first heating plate 211 and the second heating plate 221 both correspond to the frame position on the membrane electrode that needs to be hot-pressed and packaged, thereby avoiding heating the proton membrane or CCM in the effective area of ​​the membrane electrode, effectively avoiding failure of the proton membrane, avoiding decomposition and volatilization of toxic substances in the acid membrane, and reducing the size deviation of the membrane electrode. The first heating plate 211 and the second heating plate 221 are both made of high-strength stainless steel plate with chrome plating on the surface, or other thermally conductive materials.

[0024] like Figure 2 and Figure 3 As shown, the first thermostatic plate 212 corresponds to the position of the effective reaction zone on the membrane electrode, and the second thermostatic plate 222 corresponds to the position of the effective reaction zone on the membrane electrode. The first thermostatic plate 212 and the second thermostatic plate 222 both protect the proton membrane or CCM in the effective reaction zone on the membrane electrode to avoid heating the effective reaction zone on the membrane electrode during the hot pressing packaging process, which may cause the proton membrane to fail. At the same time, it can further avoid the decomposition and volatilization of toxic substances in the acid membrane, and can reduce the size deviation of the membrane electrode. The first thermostatic plate 212 and the second thermostatic plate 222 are made of high-temperature resistant and non-heat-conductive ceramic materials, or other high-temperature resistant and non-heat-conductive non-metallic materials, and can avoid

[0025] like Figure 2 and Figure 3 As shown, the first heating plate 211 is in a square frame shape, and a groove matching the first constant temperature plate 212 is provided on the first heating plate 211, and the first constant temperature plate 212 is embedded in the first heating plate 211, thereby improving the structural reliability of the upper heating plate 21; the second heating plate 221 is in a square frame shape, and a groove matching the second constant temperature plate 222 is provided on the second heating plate 221, and the second constant temperature plate 222 is embedded in the second heating plate 221, thereby improving the structural reliability of the heating plate 22.

[0026] like Figure 2 and Figure 3 As shown, the first heating plate 211 is provided with a first positioning groove 213, and the two first positioning grooves 213 are respectively arranged on the left side of the top of the first heating plate 211 and the right side of the bottom of the second heating plate 211; the second heating plate 221 is provided with a second positioning groove 223, and the two second positioning grooves 223 are respectively arranged on the right side of the top of the second heating plate 221 and the left side of the bottom of the second heating plate. The first positioning groove 213 and the second positioning groove 223 can limit the position of the membrane electrode, thereby further preventing the first heating plate 211 and the second heating plate 221 from heating the proton membrane or CCM in the effective reaction area on the membrane electrode 1, thereby further improving the accuracy of the hot pressing packaging process, further preventing the decomposition and volatilization of toxic substances in the acid membrane, and reducing the size deviation of the membrane electrode.

[0027] The hot press machine 10 further comprises a frame 11 , and a foot support 12 is provided at the bottom of the frame 11 . The foot support 12 can reduce vibration, thereby reducing the shaking of the frame 11 and improving the quality of hot pressing packaging.

[0028] The hot press 10 includes a driving cylinder 13, a pressing block 14 and a supporting plate 15. The driving cylinder 13 is arranged on the frame 11, and the output end of the driving cylinder 13 is connected to the pressing block 14. The upper heating plate 21 is arranged on the pressing block 14, and the supporting plate 15 is arranged on the frame 11. The pressing block 14 is located above the supporting plate 15, and the lower heating plate 22 is arranged on the supporting plate 15, so that the upper heating plate 21 is located above the lower heating plate 22. The driving cylinder 13 can drive the upper heating plate 21 to move in a direction close to the lower heating plate 22 through the pressing block 14, thereby clamping the upper heating plate 21 and the lower heating plate 22 to perform hot pressing packaging on the membrane electrode.

[0029] An operating screen 16 is disposed on the frame 11 , and the operating screen 16 can facilitate an operator to operate the hot pressing machine 10 , and facilitate the operator to perform the hot pressing packaging process.

[0030] Functions and Effects of the Embodiments

[0031] The hot pressing packaging device provided by the utility model includes a hot press machine 10 and a heating plate assembly 20, the heating plate assembly 20 includes an upper heating plate 21 and a lower heating plate 22, the upper heating plate 21 and the lower heating plate 22 are respectively arranged on both sides of the membrane electrode, the upper heating plate 21 includes a first heating plate 211 and a first constant temperature plate 212, the lower heating plate 22 includes a second heating plate 221 and a second constant temperature plate 222, the first heating plate 211 and the second heating plate 221 can perform hot pressing packaging on the upper frame position of the membrane electrode, the first constant temperature plate 212 and the second constant temperature plate 222 can protect the proton membrane or CCM in the effective reaction area of ​​the membrane electrode, maintain low temperature or constant temperature, thereby performing regional hot pressing on the membrane electrode, avoiding failure of the proton membrane, avoiding decomposition and volatilization of toxic substances in the acid membrane, and reducing the size deviation of the membrane electrode. The hot pressing packaging device provided by the utility model can perform hot pressing packaging on the membrane electrode, avoiding failure of the proton membrane, avoiding decomposition and volatilization of toxic substances in the acid membrane, and reducing the size deviation of the membrane electrode.

[0032] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A hot pressing packaging device, characterized in that: The invention comprises a hot press (10) and a heating plate assembly (20), wherein the heating plate assembly (20) comprises an upper heating plate (21) and a lower heating plate (22), wherein the upper heating plate (21) and the lower heating plate (22) are respectively arranged on both sides of a membrane electrode, wherein the upper heating plate (21) comprises a first heating plate (211) and a first constant temperature plate (212), and the lower heating plate (22) comprises a second heating plate (221) and a second constant temperature plate (222).

2. The hot pressing packaging device according to claim 1, characterized in that: The first heating plate (211) corresponds to the position of the hot pressing packaging area of ​​the upper frame of the membrane electrode, and the second heating plate (221) corresponds to the position of the hot pressing packaging area of ​​the upper frame of the membrane electrode.

3. The hot pressing packaging device according to claim 2, characterized in that: The first constant temperature plate (212) corresponds to the position of the effective reaction area on the membrane electrode, and the second constant temperature plate (222) corresponds to the position of the effective reaction area on the membrane electrode.

4. The hot pressing packaging device according to claim 3, characterized in that: The first heating plate (211) is provided with a first positioning groove (213), and the second heating plate (221) is provided with a second positioning groove (223).

5. The hot pressing packaging device according to claim 4, characterized in that: The hot press (10) comprises a driving cylinder (13), a pressing block (14) and a supporting plate (15); the output end of the driving cylinder (13) is connected to the pressing block (14); the upper heating plate (21) is arranged on the pressing block (14); the lower heating plate (22) is arranged on the supporting plate (15); and the pressing block (14) is located above the supporting plate (15).

6. The hot pressing packaging device according to claim 5, characterized in that: The hot press (10) further comprises a frame (11), and a foot support (12) is provided at the bottom of the frame (11).

7. The hot pressing packaging device according to claim 6, characterized in that: An operating screen (16) is provided on the frame (11).