CN112223878B

CN112223878B - CCM laminating device

Info

Publication number: CN112223878B
Application number: CN202010934133.1A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Jiangsu Hydrogen Guide Intelligent Equipment Co ltd
Current assignee: Jiangsu Hydrogen Guide Intelligent Equipment Co ltd
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2023-07-14
Anticipated expiration: 2040-09-08
Also published as: CN112223878A

Abstract

The invention relates to a CCM laminating device, which can firstly place a CCM component on an adsorption platform when an MEA membrane electrode is prepared. The CCM component can be unfolded smoothly on the adsorption platform and is adsorbed and positioned. With the transfer mechanism, the bezel can be placed on the CCM assembly. The bezel may then be compressed against the CCM component. In the process of attaching the CCM component and the frame, the CCM component is kept still on the adsorption platform all the time, so that the CCM component can be prevented from being wrinkled or deformed. Moreover, the pre-pressing surface can be abutted with the adsorption platform before the compression roller, so that the pre-pressing piece can play a role in pre-shaping a CCM component and a frame on the adsorption platform, and therefore displacement in the rolling process is prevented. Meanwhile, the frame and the CCM component are bonded together after being compressed, and the frame has certain rigidity and can provide support for the CCM component, so that the stability of the shape and the size of the CCM component in the subsequent processing process is facilitated, and the superposition precision of the MEA is improved. In addition, the invention also provides an MEA lamination method.

Description

CCM laminating device

Technical Field

The invention relates to the technical field of fuel cell processing, in particular to a CCM laminating device.

Background

The CCM (Catalyst Coated Membrane) three-in-one component is a core product prepared by MEA (Membrane Electrode Assemblies) membrane electrodes and is a core component of a hydrogen fuel cell. The finished MEA product is typically formed by stacking CCMs, gas diffusion layers, and a frame. When stacking, certain overlapping precision is required to be met among all film layers, so that the final performance of a finished product can be ensured.

At present, a single CCM sheet material is transferred by adopting a vacuum suction plate, and the vacuum suction plate drives the CCM to move to the upper part of the frame and then to be lowered, so that the CCM sheet material is attached to the frame. However, CCMs are prone to wrinkling during CCM removal and placement using a vacuum suction plate. Moreover, when the CCM is placed on the frame, the CCM is deformed due to its own stress and the surface relief of the frame. It can be seen that the flatness of the CCM during lamination is difficult to ensure, thereby affecting the lamination accuracy of the MEA.

Disclosure of Invention

Accordingly, it is necessary to provide a CCM bonding apparatus capable of improving the MEA lamination accuracy, in order to solve the problem that the MEA lamination accuracy is not high.

A CCM fitting device comprising:

a base;

the adsorption platform is used for bearing and adsorbing the CCM component;

the transfer mechanism is arranged on the base and used for placing the frame on the surface of the CCM component positioned on the adsorption platform; a kind of electronic device with high-pressure air-conditioning system

The rolling mechanism is arranged on the base and comprises an execution component used for executing rolling operation so as to compress the frame on the adsorption platform and the CCM component, wherein the execution component comprises a pre-compression piece and a compression roller, the pre-compression piece is provided with a pre-compression surface, and when the execution component executes the rolling operation, the pre-compression surface is in advance of the compression roller and is in surface butt joint with the adsorption platform.

In one embodiment, the adsorption platforms are multiple, the adsorption platforms can be alternately switched between a feeding station and a stacking station, the transfer mechanism is used for placing the frame on the adsorption platform located at the stacking station, and the execution assembly is used for executing rolling operation on the adsorption platform located at the stacking station.

In one embodiment, the CCM assembly further comprises a frame cartridge disposed on the base and configured to stack the frame, and the transfer mechanism is configured to transfer the frame from the frame cartridge to a surface of the CCM assembly.

In one embodiment, the transfer mechanism comprises:

the transverse moving assembly is arranged on the base;

the first lifting assembly is arranged at the driving end of the traversing assembly, and the traversing assembly can drive the first lifting assembly to move between the adsorption platform and the frame material box;

the suction plate is arranged at the driving end of the first lifting assembly, the first lifting assembly can drive the suction plate to lift along the direction vertical to the surface of the adsorption platform, and the suction plate can suck and release the frame.

In one embodiment, the rolling mechanism further comprises a second lifting assembly mounted on the base, the executing assembly is in transmission connection with the driving end of the second lifting assembly, and the second lifting assembly can drive the executing assembly to lift in a direction perpendicular to the surface of the adsorption platform.

In one embodiment, the executing assembly further comprises a supporting frame, the pressing roller and the pre-pressing piece are both installed on the supporting frame, and the pressing roller is located on one side, facing away from the pre-pressing surface, of the pre-pressing piece.

In one embodiment, the executing assembly further comprises a first driving piece, and the first driving piece is in transmission connection with the pressing roller so as to drive the pressing roller to lift along a direction perpendicular to the surface of the adsorption platform until the pressing roller is in abutting connection with the pre-pressing piece.

In one embodiment, the executing assembly further comprises a translation assembly and a movable plate mounted at the driving end of the translation assembly, the translation assembly can drive the movable plate to move along a direction parallel to the surface of the adsorption platform, the first driving piece is mounted on the movable plate, and the press roller is mounted at the driving end of the first driving piece.

In one embodiment, the executing assembly further comprises a cylinder mounting plate opposite to the movable plate and fixedly arranged relative to the movable plate, and a compression roller mounting plate arranged at the driving end of the first driving piece, the first driving piece is arranged on the cylinder mounting plate, a linear bearing is arranged on the cylinder mounting plate, the compression roller is rotatably arranged on the compression roller mounting plate, and a guide post penetrating through the linear bearing is arranged on the compression roller mounting plate.

In one embodiment, the rolling mechanism further comprises:

the support plate is fixed on the base and is provided with a lifting guide rail extending along the direction vertical to the surface of the adsorption platform;

the lifting plate is slidably arranged on the lifting guide rail and is in transmission connection with the driving end of the second lifting assembly, and the executing assembly is arranged on the lifting plate

In the CCM laminating device, when the MEA membrane electrode is prepared, the CCM component can be firstly placed on the adsorption platform. The CCM component can be unfolded smoothly on the adsorption platform and is adsorbed and positioned. With the transfer mechanism, the bezel can be placed on the CCM assembly. Then, the execution component of the rolling mechanism executes rolling operation, so that the frame and the CCM component can be pressed tightly. In the process of attaching the CCM component and the frame, the CCM component is kept still on the adsorption platform all the time, so that the CCM component can be prevented from being wrinkled or deformed. Moreover, the pre-pressing surface can be abutted with the adsorption platform before the compression roller, so that the pre-pressing piece can play a role in pre-shaping a CCM component and a frame on the adsorption platform, and therefore displacement in the rolling process is prevented. Meanwhile, the frame and the CCM component are bonded together after being compressed, and the frame has certain rigidity and can provide support for the CCM component, so that the stability of the shape and the size of the CCM component in the subsequent processing process is facilitated, and the superposition precision of the MEA is improved.

In addition, the invention also provides an MEA lamination method, which comprises the following steps:

placing a CCM component on the surface of an adsorption platform, and expanding the CCM component on the surface of the adsorption platform;

placing a frame on the surface of the CCM component and aligning the frame with a preset position on the surface of the CCM component;

rolling the frame until the CCM component is bonded with the frame to obtain an intermediate component;

and arranging gas diffusion layers on two sides of the middle assembly in sequence to obtain the MEA membrane electrode.

In one embodiment, the step of rolling the frame until the CCM component is bonded to the frame to obtain the intermediate component includes:

firstly, pressing and holding the gauze on the surface of the frame;

and then rolling the side of the gauze back to the frame by using a press roller, and rolling the frame.

According to the MEA lamination method, in the process of attaching the CCM component and the frame, the CCM component is kept still and unfolded on the adsorption platform all the time, so that the CCM component can be prevented from being wrinkled or deformed. Meanwhile, after the frame and the CCM component are bonded to obtain the middle component, the frame has certain rigidity, so that the support can be provided for the CCM component. When the gas diffusion layer is arranged, the CCM component can keep stable shape and size due to the supporting effect of the frame. Therefore, the MEA lamination method can improve the lamination accuracy of the MEA.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of a CCM fitting device according to a preferred embodiment of the present invention;

FIG. 2 is a side view of the CCM fitting device shown in FIG. 1;

FIG. 3 is a front view of a transfer mechanism in the CCM fitting device shown in FIG. 1;

FIG. 4 is a top view of the transfer mechanism of FIG. 3;

FIG. 5 is a front view of a roll-in mechanism in the CCM fitting device of FIG. 1;

FIG. 6 is a side view of the roll-in mechanism of FIG. 5;

FIG. 7 is a flow chart of the MEA lamination method in the preferred embodiment of the invention;

fig. 8 is a schematic flow chart of step S203 in the MEA stacking method shown in fig. 7.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The invention provides a CCM laminating device and an MEA laminating method. The CCM attaching device is used for attaching the CCM (Catalyst Coated Membrane) component to the frame to obtain an intermediate component for preparing the MEA (Membrane Electrode Assemblies) membrane electrode.

The CCM component, namely the proton membrane with two sides coated with the catalyst, is softer and has no rigidity, and is of a three-in-one structure. The surface of the proton membrane is not fully coated with catalyst, and the areas without catalyst are provided with a certain viscosity. The frame may be a plastic material having a greater rigidity than the CCM component. The frame is attached to the catalyst-uncoated area of the CCM assembly, so that the middle assembly with the four-in-one structure is obtained. On the basis of obtaining the middle component, the MEA membrane electrode can be obtained by attaching a frame to the other surface and forming gas diffusion layers on two sides of the CCM component.

Referring to fig. 1 and 2, a CCM bonding apparatus 10 according to a preferred embodiment of the present invention includes a base 100, an adsorption platform 200, a transfer mechanism 300, and a rolling mechanism 400.

The base 100 is primarily a supporting structure, typically a frame structure formed of a metallic material. To enhance the stability of the support, the bottom of the base 100 may be provided with widened feet. For lifting mobility, rollers may be provided at the bottom of the base 100.

The adsorption platform 200 is used to carry and adsorb CCM components. The adsorption stage 200 may be a stainless steel, ceramic or marble stage with high surface flatness. The adsorption platform 200 is generally a vacuum adsorption platform, and the surface of the adsorption platform is provided with small holes communicated with a vacuum cavity. When the CCM assembly is placed on the adsorption platform 200, the CCM assembly may be first spread flat on the surface of the adsorption platform 200. Then, the vacuum chamber is started to form negative pressure on the surface of the adsorption platform 200, so that the CCM component is adsorbed on the surface of the adsorption platform 200.

As shown in fig. 1, the adsorption platform 200 in the present embodiment is disposed at a preset position below or at two sides of the base 100 by means of a guide rail, a support frame, etc., and is not directly connected to the base 100. It should be appreciated that in other embodiments, a platform, mesa, or other structure may be provided on the base 100, and the suction platform 200 may be provided on the platform or mesa.

The transfer mechanism 300 is mounted to the base 100 and is used to perform a transfer operation to the adsorption platform 200. The transfer operation refers to placing the rim on the surface of the CCM assembly located on the adsorption platform 200. The transfer mechanism 300 may be a mechanism capable of carrying a frame, such as a robot arm or a robot arm having a suction cup at the end. The transfer mechanism 300 can pick up the frame and drive the frame to move towards the adsorption platform 200 and release the frame after moving into place, thereby overlapping the frame with the CCM assembly.

When the transfer mechanism 300 places the frame, it is necessary to align the frame with a predetermined location of the CCM assembly, i.e., the area not coated with catalyst.

In this embodiment, the CCM attaching device 10 further includes a frame box 500, where the frame box 500 is disposed on the base 100 and is used for stacking frames, and the transferring mechanism 300 is used for transferring the frames from the frame box 500 to the surface of the CCM component. Before the lamination, a plurality of frames may be sequentially stacked in the frame material box 500. The transfer mechanism 300 may perform the transfer operations sequentially and take one frame at a time from within the frame magazine 500. Since the frame magazine 500 is fixed to the base 100, the transfer mechanism 300 is convenient to take materials.

It should be noted that in other embodiments, the transfer mechanism 300 may take material from a cartridge placed adjacent to the CCM conforming device 10.

Further, referring to fig. 3 and fig. 4 together, in the present embodiment, the transfer mechanism 300 includes a traversing assembly 310, a first lifting assembly 320, and a suction plate 330. Wherein:

traversing assembly 310 is mounted to base 100. The first lifting assembly 320 is mounted on the driving end of the traversing assembly 310, and the traversing assembly 310 can drive the first lifting assembly 320 to move between the adsorption platform 200 and the frame material box 500. The suction plate 330 is mounted on the driving end of the first lifting assembly 320, the first lifting assembly 320 can drive the suction plate 330 to lift along the direction perpendicular to the surface of the suction platform 200, and the suction plate 330 can suck and release the frame.

Traversing assembly 310 generally includes traversing rail 311 and traversing drive 312. The traverse guide 311 is fixed to the base 100 and extends from the adsorption platform 200 to the frame magazine 500, and the traverse drive 312 may be a motor. The first lift assembly 320 is slidably disposed on the traversing rail 311. Specifically, the first lift assembly 320 includes a transition mounting plate 321 slidably disposed on the traversing rail 311, a transfer lift drive 322, and a transfer lift plate 323. The transition mounting plate 321 is provided with a guide rail (not shown) extending in a direction perpendicular to the surface of the adsorption platform 200, and the transfer lifter plate 323 is slidably provided on the guide rail and driven by the transfer lifter driving member 322. Suction plate 330 may be a vacuum suction plate that sucks the frame by creating a negative pressure on the surface.

In performing the transfer operation, the traversing assembly 310 first advances the first lifting assembly 320 to above the frame magazine 500. Next, the first elevating assembly 320 drives the suction plate 330 to descend until contacting the frame in the frame magazine 500 and sucking the frame. Then, the first lifting assembly 320 drives the suction plate 330 to lift, and the traversing assembly 310 drives the first lifting assembly 320 to retract until reaching the upper side of the adsorption platform 200. Finally, the first lifting assembly 320 drives the suction plate 330 to descend again until the suction plate 330 releases the frame when the frame sucked on the suction plate 330 contacts or is about to contact with the CCM assembly on the surface of the suction plane 200.

The rolling mechanism 400 is mounted to the base 100. Wherein the rolling mechanism 400 includes an executing component 420 that executes the rolling operation. The rolling operation may compress the frame and CCM components located on the adsorption platform 200. The transfer mechanism 300 aligns the frame with the catalyst-uncoated areas of the CCM assembly while performing the transfer operation, which areas are tacky. Thus, after compaction by the roller press mechanism 400, the frame will bond with the CCM assembly.

When the CCM assembly is placed on the adsorption platform 200, the CCM assembly can be unfolded smoothly and adsorbed and positioned. When the transfer mechanism 300 and the rolling mechanism 400 perform the frame transfer operation and the rolling operation, the CCM assembly can be kept still on the adsorption platform 200 all the time, so that the CCM assembly can be prevented from being wrinkled or deformed. Meanwhile, the middle assembly is obtained after the frame is bonded with the CCM assembly, and the frame with certain rigidity can provide support for the CCM assembly. In the subsequent processing process, the protection effect of the frame can also avoid the deformation or the wrinkling of the CCM component, so that the stability of the shape and the size of the CCM component is always maintained.

Further, referring to fig. 5 and 6, the execution assembly 420 includes a pre-pressing member 422 and a pressing roller 423. The pre-pressing member 422 has a pre-pressing surface (not shown), and when the execution unit 420 executes the rolling operation, the pre-pressing surface abuts against the surface of the adsorption platform 200 prior to the pressing roller 423.

The pre-load surface is generally matched to the surface of the adsorption platform 200 and may cover the surface of the adsorption platform 200. The pressing roller 423 may be a metal roller or a resin roller. Specifically, the compression roller 423 compresses the CCM assembly and the frame by rolling in a direction parallel to the surface of the adsorption platform 200.

When the rolling operation is performed, the pre-pressing surface will contact the frame and CCM components on the surface of the adsorption platform 200 before the pressing roller 423. The surface area of the pre-pressing surface is large, and the frame and the CCM component can be pressed in a whole surface, so that the pre-shaping effect on the frame and the CCM component is achieved before the rolling operation is performed. Thus, when the compression roller 423 rolls, the frame and the CCM component can be prevented from following, and deformation and wrinkling of the CCM component are avoided. In addition, due to the pre-shaping function of the pre-pressing piece 422, dislocation between the frame and the CCM component during rolling can be prevented, and therefore the attaching precision is further improved.

In performing the rolling operation, the force of the pressure roller 423 is transferred to the frame and CCM assembly through the pre-press 422. Thus, the preform 422 should be relatively soft but also have a certain rigidity. In particular, in this embodiment, the pre-press 422 may be a metal mesh or a gauze of plastic material. Of course, the preform 422 may also be of sheet construction.

Referring to fig. 1 again, in the present embodiment, the number of the suction stages 200 is plural, and the suction stages 200 can be alternately switched between the loading station and the stacking station, and the transferring mechanism 300 and the rolling mechanism 400 are respectively used for performing the transferring operation and the rolling operation on the suction stages 200 located at the stacking station. That is, the transfer mechanism 300 is used to place CCM components to the suction stage 200 located at the stacking station, and the execution component 420 is used to execute a rolling operation to the suction stage 200 located at the stacking station.

The adsorption platform 200 can realize position switching through guide rails, driving parts and the like, so that the adsorption platform can be transferred between a feeding station and a stacking station. As shown in fig. 2, the adsorption platform 200 may be moved in a horizontal direction, thereby achieving switching of stations. And at the feeding station, the CCM component can be placed on the adsorption platform 200, and the middle component obtained after the CCM component is adhered to the frame can be taken out from the adsorption platform 200. Of course, a blanking station may be additionally provided, and the adsorbing platform 200 may be moved to the blanking station and take out the intermediate assembly at the blanking station.

Alternatively, when one suction stage 200 is located at the stacking station, any one of the remaining suction stages 200 is located at the loading station. As shown in fig. 2, there are two adsorption platforms 200, and when one adsorption platform 200 is located at the stacking station, the other adsorption platform 200 is located at the feeding station. That is, when the transfer mechanism 300 and the rolling mechanism 400 perform the transfer operation and the rolling operation, the feeding operation of the CCM component and the discharging operation of the intermediate component can be performed simultaneously, so that the production efficiency can be significantly improved.

Referring to fig. 5 and 6 again, in the present embodiment, the rolling mechanism 400 further includes a second lifting assembly 410 mounted on the base 100. Wherein:

the actuating assembly 420 is in driving connection with the driving end of the second lifting assembly 410, and the second lifting assembly 410 can drive the actuating assembly 420 to lift along the direction perpendicular to the surface of the adsorption platform 200.

The second lifting assembly 410 may be a power assembly such as a motor or a cylinder, and in this embodiment, the second lifting assembly 410 is a motor and a ball screw pair structure matched with the motor. When the transfer mechanism 300 performs a transfer operation, the second lifting assembly 410 can drive the executing assembly 420 to lift, so as to avoid the transfer mechanism 300. After the transfer operation is completed, the second lifting assembly 410 may drive the executing assembly 420 to descend until the executing assembly 420 descends to a proper height, and the rolling operation is completed by the executing assembly 420. Therefore, the rolling operation and the transferring operation can be made not to interfere with each other.

Further, in this embodiment, the rolling mechanism 400 further includes a supporting plate 430 and a lifting plate 440. Wherein, the support plate 430 is fixed to the base 100, and the support plate 430 is provided with a lifting rail 431 extending in a direction perpendicular to the surface of the adsorption platform 200. The lifting plate 440 is slidably disposed on the lifting rail 431, and the lifting plate 440 is in driving connection with the driving end of the second lifting assembly 410, and the executing assembly 420 is disposed on the lifting plate 440.

The support plate 430 may have a metal plate structure, have high rigidity, and may be fixed to the base 100 by welding, or may be integrally formed with a profile constituting the base 100. The lifting guide rails 431 are arranged in parallel at intervals. Thus, the lifting plate 440 has better stability during sliding. The second lifting assembly 410 drives the actuating assembly 420 to lift by driving the lifting plate 440 to slide. Thus, stability of the lifting process of the execution assembly 420 may be improved.

In this embodiment, the execution assembly 420 includes a support frame 421. The pressing roller 423 and the pre-pressing member 422 are both mounted on the supporting frame 421, and the pressing roller 423 is located at a side of the pre-pressing member 422 opposite to the pre-pressing surface.

The supporting frame 421 may be a frame structure formed by splicing a plurality of parallel columns arranged at intervals through transverse connecting rods. In this embodiment, the supporting frame 421 is fixed on the lifting plate 440, so as to be in driving connection with the driving end of the second lifting assembly 410. The supporting frame 421 can drive the executing assembly 420 to lift up and down under the driving of the second lifting assembly 410.

Further, in the present embodiment, the executing assembly 420 further includes a first driving member 424, where the first driving member 424 is in driving connection with the pressing roller 423 to drive the pressing roller 423 to lift along a direction perpendicular to the surface of the adsorption platform 200 until the pressing roller 423 abuts against the pre-pressing member 422.

The position between the pressing roller 423 and the pre-pressing piece 422 is adjustable, and the pressing roller 423 and the pre-pressing piece 422 can be fully contacted through the first driving piece 424, so that the pressure of the pressing roller 423 can be smoothly conducted to the surface of the frame on the adsorption platform 200.

It is apparent that in other embodiments, the relative position of the roller 423 and the pre-press 422 may be maintained, and that the roller 423 is placed in contact with the pre-press 422 in the initial state.

Specifically, in this embodiment, the first driving member 424 is a cylinder, and a flow control valve (not shown) is disposed on an air inlet pipe of the cylinder. The cylinder is extended to press the pressing roller 423 against the pre-pressing piece 422. Also, the air pressure of the air cylinder may be adjusted by the flow control valve, thereby changing the pressure of the pressing roller 423. So, can be according to the CCM subassembly of waiting the roll-in and the parameter of frame, adjust the pressure of compression roller 423 roll-in to make the roll-in effect better.

Still further, in the present embodiment, the executing assembly 420 further includes a translation assembly 425 and a movable plate 426 mounted on the driving end of the translation assembly 425, the translation assembly 425 can drive the movable plate 426 to move along a direction parallel to the surface of the adsorption platform 200, the first driving member 424 is mounted on the movable plate 426, and the pressing roller 423 is mounted on the driving end of the first driving member 424.

The translation assembly 425 generally includes a traversing rail (not shown) and a traversing drive (not shown). The actuator assembly 420 further includes a cylinder mounting plate 427 disposed opposite the movable plate 426 and fixedly disposed relative to the movable plate 426, and the first driver 424 is disposed on the cylinder mounting plate 427. The translation assembly 425 can drive the movable plate 426 to move, so as to drive the first driving member 424 to move, and further drive the pressing roller 423 to roll along a direction parallel to the surface of the adsorption platform 200, thereby realizing rolling.

In particular, in this embodiment, the actuator assembly 420 further includes a cylinder mounting plate 427 disposed opposite the movable plate 426 and fixedly disposed relative to the movable plate 426, and the first driver 424 is disposed on the cylinder mounting plate 427. In addition, the actuator assembly 420 includes a pressure roller mounting plate 428, and a pressure roller 423 rotatably mounted to the pressure roller mounting plate 428.

The cylinder mounting plate 427 is provided with a linear bearing 4271, and the platen mounting plate 428 is provided with a guide post 4281 passing through the linear bearing 4271. The guide posts 4281 and the linear bearings 4271 are matched with each other, so that the press roller 423 can be guided in the lifting process, and the press roller 423 can move more stably.

In the CCM laminating apparatus 10, when the MEA membrane electrode is manufactured, the CCM assembly may be first placed on the adsorption platform 200. The CCM assembly may be deployed flat on the suction platform 200 and suctioned into place. With the transfer mechanism 300, the bezel may be placed on the CCM assembly. Next, the rolling mechanism 400 performs a rolling operation, so as to compress the frame and CCM components. In the process of attaching the CCM component to the frame, the CCM component is always kept stationary on the adsorption platform 200, so that the CCM component can be prevented from being creased or deformed. Moreover, the pre-pressing surface can be abutted against the adsorption platform 200 before the pressing roller 423, so that the pre-pressing piece 422 can perform a pre-shaping function on the CCM component and the frame on the adsorption platform 200, thereby preventing displacement in the rolling process. Meanwhile, the frame and the CCM component are bonded together after being compressed, and the frame has certain rigidity and can provide support for the CCM component, so that the stability of the shape and the size of the CCM component in the subsequent processing process is facilitated, and the superposition precision of the MEA is improved.

Referring to fig. 7, the MEA stacking method in the preferred embodiment of the present invention includes steps S201 to S204:

in step S201, the CCM component is placed on the surface of the adsorption platform, and the CCM component is unfolded on the surface of the adsorption platform.

The adsorption platform can be a stainless steel, ceramic or marble platform and has higher surface flatness. The adsorption platform can be a vacuum adsorption platform, and the surface of the adsorption platform is provided with small holes communicated with the vacuum cavity. When the CCM assembly is placed on the adsorption platform, the CCM assembly can be firstly unfolded flatly on the surface of the adsorption platform. Then, the vacuum cavity is started to form negative pressure on the surface of the adsorption platform, so that the CCM component is adsorbed on the surface of the adsorption platform. The adsorption platform may be the adsorption platform 200 shown in fig. 1 to 7.

In step S202, the frame is placed on the surface of the CCM component and aligned with a predetermined position on the surface of the CCM.

Specifically, the frame can be transferred by means of a manipulator, a sucker and the like. The predetermined locations of the CCM surface refer to areas of the surface of the CCM component that are not coated with catalyst. When the frame is placed, it is necessary to align the frame with the area where the catalyst is not coated.

And step S203, rolling the frame until the CCM component is adhered to the frame to obtain an intermediate component.

Specifically, a pressing roller may be used to roll along the surface of the frame. Because the catalyst-uncoated areas of the CCM assembly have some tackiness. Thus, after rolling, the frame will bond with the CCM assembly, resulting in an intermediate assembly. The middle component is of a four-in-one structure, and the frame can be used as a support. Therefore, in the process of attaching the CCM component and the frame, the CCM component is kept still and unfolded on the adsorption platform all the time, so that the CCM component can be effectively prevented from being wrinkled or deformed.

And step S204, arranging gas diffusion layers on two sides of the middle assembly in sequence to obtain the MEA membrane electrode.

Specifically, after the intermediate assembly is obtained, a gas diffusion layer can be continuously arranged on the surface of the frame. For the preparation of the MEA membrane electrode with a single frame, the middle component provided with one gas diffusion layer is turned over, and the other gas diffusion layer is arranged on the other side. For the preparation of the MEA membrane electrode with the double-frame structure, a second frame is arranged after the turnover.

The frame has certain rigidity, so the support can be provided for the CCM assembly. When the gas diffusion layer or the second layer of frame is arranged, the CCM component can keep stable shape and size due to the supporting function of the frame, so that the superposition accuracy of the MEA is improved.

Referring to fig. 8, in the present embodiment, the step S203 includes steps S2031 to S2032:

in step S2031, the pre-pressing member is pressed against the surface of the frame.

The pre-compression element may be a metal or plastic mesh structure, and is relatively flexible but also rigid. Therefore, the pressing device has a good pressing effect and can better conduct the pressure of the pressing roller. The surface area of the pre-compression element is relatively large, and the frame and the CCM assembly can be pressed in a whole surface mode.

Step S2032, rolling the side of the pre-pressed piece, which is opposite to the frame, by using a pressing roller, and rolling the frame.

The press roll may be a metal roll or a resin roll. The pre-press plays a role in pre-shaping the frame and CCM components before the rolling operation is performed. Thus, when the compression roller rolls, the frame and the CCM component can be prevented from following, and deformation and wrinkling of the CCM component are avoided. In addition, due to the pre-shaping function of the pre-pressing piece, dislocation between the frame and the CCM component during rolling can be prevented, and therefore the superposition accuracy of the MEA is further improved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. A CCM bonding device, comprising:

a base;

the adsorption platform is used for bearing and adsorbing the CCM component;

The rolling mechanism is arranged on the base and comprises an execution component used for executing rolling operation so as to compress the frame and the CCM component on the adsorption platform, the execution component comprises a pre-compression piece and a compression roller, the pre-compression piece is provided with a pre-compression surface, and when the execution component executes the rolling operation, the pre-compression surface is abutted against the surface of the adsorption platform before the compression roller; the pre-pressing surface can cover the surface of the adsorption platform, and the acting force of the pressing roller is transmitted to the frame and the CCM component through the pre-pressing piece.

2. The CCM bonding device according to claim 1, wherein the plurality of suction stages are provided, and the plurality of suction stages are alternately switched between a loading station and a stacking station, the transfer mechanism is configured to place the frame on the suction stage at the stacking station, and the execution assembly is configured to execute a rolling operation on the suction stage at the stacking station.

3. The CCM fitting of claim 1, further comprising a rim cartridge disposed on the base and configured to stack the rim, the transfer mechanism being configured to transfer the rim from the rim cartridge to a surface of the CCM assembly.

4. The CCM fitting device of claim 3, wherein the transfer mechanism comprises:

the transverse moving assembly is arranged on the base;

5. The CCM fitting device of claim 1, wherein the roller press mechanism further comprises a second lifting assembly mounted to the base, the actuating assembly is in driving connection with the driving end of the second lifting assembly, and the second lifting assembly can drive the actuating assembly to lift in a direction perpendicular to the surface of the adsorption platform.

6. The CCM fitting device of claim 1, wherein the actuating assembly further comprises a support frame, the pressure roller and the pre-compression member are both mounted to the support frame, and the pressure roller is located on a side of the pre-compression member facing away from the pre-compression surface.

7. The CCM fitting device of claim 6, wherein the actuating assembly further comprises a first drive member drivingly coupled to the compression roller to drive the compression roller up and down in a direction perpendicular to the surface of the suction platform until abutting the pre-compression member.

8. The CCM fitting device of claim 7, wherein the actuating assembly further comprises a translation assembly and a movable plate mounted to the driving end of the translation assembly, the translation assembly being configured to drive the movable plate to move in a direction parallel to the surface of the suction platform, the first driving member being mounted to the movable plate, the pressure roller being mounted to the driving end of the first driving member.

9. The CCM bonding device according to claim 8, wherein the executing assembly further comprises a cylinder mounting plate opposite to the movable plate and fixedly arranged relative to the movable plate, and a press roller mounting plate arranged at the driving end of the first driving member, the first driving member is arranged on the cylinder mounting plate, a linear bearing is arranged on the cylinder mounting plate, the press roller is rotatably arranged on the press roller mounting plate, and a guide post penetrating through the linear bearing is arranged on the press roller mounting plate.

10. The CCM fitting device of claim 5, wherein the roll-in mechanism further comprises:

the lifting plate is slidably arranged on the lifting guide rail, the lifting plate is in transmission connection with the driving end of the second lifting assembly, and the executing assembly is arranged on the lifting plate.