A membrane electrode preparation device

Abstract

The utility model relates to the field of electrode preparation device discloses a membrane electrode preparation device, including workstation, mobile seat, heat conduction bearing plate, cooling bin and hot -pressing mechanism, install electric slide rail on the workstation, and the workstation is sequentially provided with starting station, hot -pressing station and cooling station along the extension direction of electric slide rail, mobile seat is slidably installed on electric slide rail, heat conduction bearing plate is installed on mobile seat, cooling bin is installed in cooling station, hot -pressing mechanism includes mounting bracket, first hot -pressing plate, second hot -pressing plate and hot -pressing drive part, and mounting bracket and first hot -pressing plate are installed in hot -pressing station, and first hot -pressing plate is located heat conduction bearing plate downside, and can contact with heat conduction bearing plate, and second hot -pressing plate is movably installed on mounting bracket along vertical direction, and is located first hot -pressing plate upside, and hot -pressing drive part is used for driving second hot -pressing plate to remove. The utility model can improve the automation degree of membrane electrode production, and can improve the production efficiency of membrane electrode.

Description

Technical Field

[0001] This utility model relates to the field of electrode preparation device technology, and in particular to a membrane electrode preparation device. Background Technology

[0002] A membrane electrode assembly (MEA) is a functional integrated component that combines a catalyst, a proton exchange membrane, and a gas diffusion layer. It plays a core role in proton exchange membrane fuel cells (PEMFC) and proton exchange membrane electrolysis for hydrogen production (PEMWE).

[0003] The assembly process of the membrane electrode is as follows: First, the anode gas diffusion layer and the cathode gas diffusion layer coated with the catalyst layer are placed on both sides of the proton exchange membrane; then, the three are combined together by hot pressing to form the membrane electrode; then, the membrane electrode after hot pressing is cooled to make the structure and performance of the membrane electrode more stable.

[0004] Currently, the hot pressing and cooling processes for membrane electrodes are usually handled by two separate devices, and the transfer of products between processes relies on manual labor, which not only reduces the automation level of membrane electrode production but also reduces the production efficiency of membrane electrodes. Summary of the Invention

[0005] In view of this, the purpose of this utility model is to provide a membrane electrode preparation device to solve the problem mentioned in the background art, where hot pressing and cooling of membrane electrodes are usually done by two separate devices, and the transfer of products between processes depends on manual labor, which not only reduces the automation level of membrane electrode production, but also reduces the production efficiency of membrane electrodes.

[0006] This utility model solves the above-mentioned technical problems through the following technical means:

[0007] A membrane electrode fabrication apparatus, comprising:

[0008] A workbench is provided, on which an electric slide rail is installed. Along the extension direction of the electric slide rail, the workbench is provided with a starting station, a hot pressing station and a cooling station in sequence.

[0009] A movable seat, which is slidably mounted on the electric slide rail;

[0010] A heat-conducting support plate is mounted on the movable base;

[0011] Cooling chamber, the cooling chamber being installed at the cooling station; and

[0012] A hot pressing mechanism includes a mounting frame, a first hot pressing plate, a second hot pressing plate, and a hot pressing drive component. The mounting frame and the first hot pressing plate are mounted on the hot pressing station. The first hot pressing plate is located below the heat-conducting support plate and can contact the heat-conducting support plate. The second hot pressing plate is movably mounted on the mounting frame in the vertical direction and is located above the first hot pressing plate. The hot pressing drive component is used to drive the second hot pressing plate to move.

[0013] In one possible implementation, the heat-conducting support plate is movably mounted on the movable base in a vertical direction, and an elastic element is installed between the heat-conducting support plate and the movable base.

[0014] In one possible implementation, a plurality of guide posts extending vertically are mounted on the bottom side of the heat-conducting support plate, and the movable seat is provided with guide holes adapted to the guide posts. At least a portion of the structure of the guide posts extends into the guide holes and is capable of moving axially within the guide holes.

[0015] In one possible implementation, the elastic element is a helical spring, which is sleeved on the guide post, with one end of the spring abutting against the heat-conducting bearing plate and the other end abutting against the movable seat.

[0016] In one possible implementation, the cooling chamber has an inlet / outlet on the side facing the hot pressing mechanism, and the cooling chamber is equipped with a door at the inlet / outlet.

[0017] In one possible implementation, the door is movably installed vertically at the inlet and outlet of the cooling chamber, and the cooling chamber is equipped with a door opening and closing drive for driving the door to move.

[0018] In one possible implementation, a first hot press base is mounted on the bottom side of the first hot press plate, and the first hot press plate is mounted on the workbench via the first hot press base.

[0019] In one possible implementation, a second hot press base is mounted on the upper side of the second hot press plate, and the second hot press plate is mounted on the mounting frame via the second hot press base.

[0020] The beneficial effects of this utility model are:

[0021] According to the technical solution of this application, in the hot pressing and cooling process of preparing membrane electrodes, the moving seat first starts at the starting position of the worktable, and then places the assembled membrane electrode onto the heat-conducting support plate. Then, the moving seat is driven by an electric slide rail to move to the hot pressing position, so that the upper side of the first hot pressing plate can contact the lower side of the heat-conducting support plate, transferring heat to the heat-conducting support plate. Next, the hot pressing drive unit drives the second hot pressing plate downwards to perform hot pressing on the membrane electrode on the heat-conducting support plate. After the hot pressing is completed, the hot pressing drive unit drives the second hot pressing plate to reset, and then the moving seat is driven by an electric slide rail to move to the cooling position to cool the membrane electrode on the heat-conducting support plate. After the cooling is completed, the moving seat is finally driven by an electric slide rail to move back to the starting position, thus successfully completing the hot pressing and cooling process of the membrane electrode. This setup integrates the hot pressing and cooling processes of the membrane electrode into one device, making the transfer of the membrane electrode between the hot pressing and cooling processes independent of manual labor. This improves both the automation level and production efficiency of membrane electrode production. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a membrane electrode fabrication device according to an embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the structure of the movable seat and the heat-conducting bearing plate in the embodiments of this application;

[0025] Figure 3 This is a partial cross-sectional view of the movable seat located at the hot pressing station in an embodiment of this application;

[0026] Figure 4 This is a partial cross-sectional view of the cooling chamber in an embodiment of this application;

[0027] Explanation of reference numerals: 100, workbench; 110, electric slide rail; 120, starting station; 130, hot pressing station; 140, cooling station; 200, moving seat; 300, heat-conducting bearing plate; 310, elastic element; 320, guide column; 400, cooling chamber; 410, cold source generating equipment; 420, chamber door; 421, connecting bracket; 430, door opening / closing drive component; 510, mounting bracket; 520, first hot pressing plate; 521, first hot pressing seat; 530, second hot pressing plate; 531, second hot pressing seat; 540, hot pressing drive component. Detailed Implementation

[0028] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and represent schematic diagrams, not actual pictures. They should not be construed as limiting the utility model. To better illustrate the embodiments of this utility model, some components in the figures may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the figures for those skilled in the art.

[0029] In the figures of this utility model embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure, 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 component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe the positional relationship in the figure are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0030] like Figures 1-4 As shown in the figure, this application provides a membrane electrode fabrication apparatus, including a worktable 100, a movable seat 200, a thermally conductive support plate 300, a cooling chamber 400, and a hot pressing mechanism. The worktable 100 is equipped with two sets of parallel-arranged electric slide rails 110. The electric slide rails 110 are existing technology and include structures such as tracks, screws, and motors, which will not be described in detail here. The worktable 100 has a starting station 120, a hot pressing station 130, and a cooling station 140 arranged sequentially along the extension direction of the electric slide rails 110. The movable seat 200 is slidably mounted on the electric slide rails 110 and can move between the starting station 120, the hot pressing station 130, and the cooling station 140. Specifically, the movable seat 200 consists of two bases, each corresponding to one of the two sets of electric slide rails 110. A slider is provided on the lower side of each base and is slidably mounted on its corresponding electric slide rail 110.

[0031] A thermally conductive support plate 300 is mounted on the movable base 200. The thermally conductive support plate 300 is made of a material with good thermal conductivity and high hardness, such as a composite metal material. The thermally conductive support plate 300 is used to support the membrane electrode, allowing the membrane electrode to move on the electric slide rail 110. A cooling chamber 400 is installed on the cooling station 140. A cold source generating device 410, such as a forced convection refrigeration fan, a scroll tube cooler, or a semiconductor refrigeration device, is installed on the cooling chamber 400 to supply a cold source to the cooling chamber 400.

[0032] The hot pressing mechanism includes a mounting frame 510, a first hot pressing plate 520, a second hot pressing plate 530, and a hot pressing drive component 540. The mounting frame 510 is a U-shaped frame, and both the first and second hot pressing plates 520 and 530 are electrically heated plates. The mounting frame 510 and the first hot pressing plate 520 are mounted on the hot pressing station 130. The first hot pressing plate 520 is located vertically below the heat-conducting support plate 300, and when the heat-conducting support plate 300 arrives at the hot pressing station 130 with the moving seat 200, the upper surface of the first hot pressing plate 520 can contact the lower surface of the heat-conducting support plate 300, thereby transferring heat to the heat-conducting support plate 300. The second hot pressing plate 530 is movably mounted vertically on the mounting frame 510 and is located above the first hot pressing plate 520. The hot press drive 540 is used to drive the second hot press plate 530 to move. The hot press drive 540 is selected from drive components with large force, such as cylinders or hydraulic cylinders.

[0033] Through the above technical solution, in the hot pressing and cooling process of preparing the membrane electrode, the moving seat 200 first moves to the starting position 120 of the worktable 100, and then places the assembled membrane electrode onto the heat-conducting support plate 300; then, the moving seat 200 is driven by the electric slide rail 110 to move to the hot pressing position 130, so that the upper side of the first hot pressing plate 520 can contact the lower side of the heat-conducting support plate 300, transferring heat to the heat-conducting support plate 300; then, the second hot pressing plate 530 is driven downward by the hot pressing drive component 540 to perform hot pressing on the membrane electrode on the heat-conducting support plate 300; after the hot pressing is completed, the second hot pressing plate 530 is driven to reset by the hot pressing drive component 540, and then the moving seat 200 is driven by the electric slide rail 110 to move to the cooling position 140 to cool the membrane electrode on the heat-conducting support plate; after the cooling is completed, the moving seat 200 is driven by the electric slide rail 110 to move back to the starting position 120, and the hot pressing and cooling process of the membrane electrode is successfully completed. By integrating the hot pressing and cooling processes of the membrane electrode into one device, the transfer of the membrane electrode between the two processes does not rely on manual labor. This not only improves the automation level of membrane electrode production but also increases its production efficiency.

[0034] It should be noted that in this embodiment, the control of each electrical device in the membrane electrode fabrication apparatus is controlled by the main controller on the membrane electrode production line. The main controller contains the control logic for each electrical device, referring to the workflow described above. Operators can also design process parameters according to actual conditions.

[0035] In one possible embodiment, the heat-conducting support plate 300 is movably mounted on the movable seat 200 in a vertical direction, and an elastic element 310 is installed between the heat-conducting support plate 300 and the movable seat 200. When the movable seat 200 moves to the hot pressing station 130, the second hot pressing plate 530 moves downward, pressing the heat-conducting support plate 300 downward a certain distance, so that the heat-conducting support plate 300 can make close contact with the first hot pressing plate 520. With this arrangement, on the one hand, the heat-conducting support plate 300 can make close contact with the first hot pressing plate 520, so that the heat of the first hot pressing plate 520 can be smoothly transferred to the heat-conducting support plate 300; on the other hand, the first hot pressing plate 520 can provide a bearing force for the heat-conducting support plate 300, preventing the movable seat 200 or the electric slide rail 110 under the heat-conducting support plate 300 from being damaged due to excessive pressure from the second hot pressing plate 530.

[0036] Specifically, in this embodiment, a plurality of guide posts 320 extending vertically are installed on the bottom side of the heat-conducting support plate 300, with at least four guide posts 320 provided. The movable base 200 has guide holes adapted to the guide posts 320, and at least a portion of the structure of the guide post 320 extends into the guide hole and is capable of axial movement within the guide hole. Through the mutual cooperation of the guide holes of the guide posts 320, the movable base 200 can be movably mounted on the movable base 200 in the vertical direction. Of course, in another embodiment, the guide posts 320 can also be provided on the movable base 200, and the guide holes can be opened on the heat-conducting support plate 300, both achieving the above-mentioned functions.

[0037] Specifically, in this embodiment, the elastic element 310 is a helical spring, which is sleeved on the guide post 320, with one end of the spring abutting against the heat-conducting support plate 300 and the other end abutting against the movable seat 200. Of course, in other embodiments, the elastic element 310 can also be a compression spring, air spring, or other elastic element 310, as long as it can realize the reset function of the heat-conducting support plate 300.

[0038] In one possible embodiment, the cooling chamber 400 has an inlet and outlet on the side facing the hot pressing mechanism, and a door 420 is installed at the inlet and outlet of the cooling chamber 400. By setting the door 420, the door 420 can be closed after the moving seat 200, the thermally conductive bearing plate 300 and the membrane electrode enter the cooling chamber 400, so that the cooling effect of the cooling chamber 400 is better.

[0039] Specifically, in this embodiment, the door 420 is vertically movably installed at the inlet and outlet of the cooling chamber 400. The cooling chamber 400 has sliding grooves on both sides of the inlet and outlet, and the door 420 is slidably installed in the grooves on the same side. A door-opening / closing drive unit 430 is installed on the cooling chamber 400 to drive the door 420. The door-opening / closing drive unit 430 can be a cylinder, electric cylinder, etc. A connecting bracket 421 is provided at the upper end of the door 420, and the output shaft of the door-opening / closing drive unit 430 is fixed to the connecting bracket 421. Through the cooperation of the door-opening / closing drive unit 430 and the connecting bracket 421, the door 420 is driven to move upwards or downwards.

[0040] In one possible embodiment, a first hot press base 521 is mounted on the bottom side of the first hot press plate 520, and the first hot press plate 520 is mounted on the workbench 100 via the first hot press base 521; a second hot press base 531 is mounted on the upper side of the second hot press plate 530, and the second hot press plate 530 is mounted on the mounting bracket 510 via the second hot press base 531. By providing the first hot press base 521 and the second hot press base 531, the installation of the first hot press plate 520 and the second hot press base 531 is facilitated.

[0041] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model. Technologies, shapes, and structural parts not described in detail in this utility model are all known technologies.

Claims

1. A membrane electrode preparation apparatus, characterized by, include: A workbench (100) is provided with an electric slide rail (110) installed on the workbench (100). The workbench (100) is provided with a starting station (120), a hot pressing station (130) and a cooling station (140) in sequence along the extension direction of the electric slide rail (110). A movable seat (200) is slidably mounted on the electric slide rail (110); A heat-conducting support plate (300) is mounted on the movable base (200); A cooling chamber (400) is installed at the cooling station (140); as well as The hot pressing mechanism includes a mounting frame (510), a first hot pressing plate (520), a second hot pressing plate (530), and a hot pressing drive (540). The mounting frame (510) and the first hot pressing plate (520) are mounted on the hot pressing station (130). The first hot pressing plate (520) is located below the heat-conducting support plate (300) and can contact the heat-conducting support plate (300). The second hot pressing plate (530) is movably mounted on the mounting frame (510) in the vertical direction and is located above the first hot pressing plate (520). The hot pressing drive (540) is used to drive the second hot pressing plate (530) to move.

2. The membrane electrode preparation apparatus according to claim 1, wherein The heat-conducting support plate (300) is movably mounted on the movable seat (200) in the vertical direction, and an elastic element (310) is installed between the heat-conducting support plate (300) and the movable seat (200).

3. A membrane electrode preparation apparatus according to claim 2, wherein The bottom side of the heat-conducting bearing plate (300) is equipped with a plurality of guide posts (320) extending in the vertical direction. The movable seat (200) is provided with guide holes adapted to the guide posts (320). At least a part of the structure of the guide post (320) extends into the guide hole and can move axially within the guide hole.

4. The membrane electrode preparation apparatus according to claim 3, wherein The elastic element (310) is a helical spring, which is sleeved on the guide post (320), with one end of the spring abutting against the heat-conducting bearing plate (300) and the other end abutting against the movable seat (200).

5. The membrane electrode preparation apparatus according to claim 1, wherein The cooling chamber (400) has an inlet and outlet on the side facing the hot pressing mechanism, and the cooling chamber (400) is equipped with a door (420) at the inlet and outlet.

6. A membrane electrode preparation apparatus according to claim 5, wherein The door (420) is movably installed in the vertical direction at the inlet and outlet of the cooling chamber (400), and the cooling chamber (400) is equipped with a door opening and closing drive unit (430) for driving the door (420) to move.

7. The apparatus for preparing a membrane electrode according to claim 1, wherein A first hot press base (521) is installed on the bottom side of the first hot press plate (520), and the first hot press plate (520) is installed on the workbench (100) through the first hot press base (521).

8. The membrane electrode preparation apparatus according to claim 1, wherein A second hot press base (531) is installed on the upper side of the second hot press plate (530), and the second hot press plate (530) is mounted on the mounting bracket (510) through the second hot press base (531).

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