CN217589000U

CN217589000U - Membrane electrode frame laminating instrument

Info

Publication number: CN217589000U
Application number: CN202220718968.8U
Authority: CN
Inventors: 王新磊; 张显
Original assignee: Shanghai Shengshui New Energy Technology Co ltd
Current assignee: Shanghai Shengshui New Energy Technology Co ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-10-14
Anticipated expiration: 2032-03-30

Abstract

The utility model provides a membrane electrode frame laminating instrument, include: upper cover plate and lower apron, the upper cover plate sets up the top of apron down, the upper cover plate is connected through rotatory hinge and lower apron, the intermediate position of apron is opened down has well fretwork, the upper surface of apron is provided with back frame and preceding table frame down, compares with prior art, the utility model discloses following beneficial effect has: the tool can solve the problems of low laminating precision, low efficiency, high failure rate and the like of the traditional membrane electrode frame, and has simple and portable structure and lower cost. The frame attaching mode is not only suitable for the PEMFC, but also can be applied to membrane electrodes with other sandwich structures.

Description

Membrane electrode frame laminating instrument

Technical Field

The utility model belongs to the technical field of fuel cell, in particular to membrane electrode frame laminating instrument.

Background

A hydrogen fuel cell is a power generation device that directly converts chemical energy of hydrogen and oxygen into electrical energy. The method is not limited by the Carnot cycle thermal efficiency of the traditional engine, the conversion efficiency of the hydrogen fuel cell can easily reach more than 60%, and the product after reaction is pollution-free water, so the method is once considered to be one of the important development directions of new energy automobiles in the future.

The membrane electrode is one of the core components of the fuel cell, and the sealing performance and sealing stability of the frame of the membrane electrode are related to the safety and service life of the fuel cell. At present, a certain sealing effect is maintained mainly by a form of attaching sealing frames to two sides of a proton membrane, and meanwhile, the proton membrane can be maintained in a certain unfolded state, so that subsequent assembly and preparation of a membrane electrode are facilitated.

At present, the membrane electrode bonding modes mainly comprise two modes: one method comprises the steps of obtaining CCM by taking a proton membrane as a coil stock and then performing frame lamination on two sides; and the other method is to prepare the frame and the CCM into sheets and then laminate the sheets layer by layer. The laminating of the coil stock involves the high cost of the equipment cost, the technical requirement is higher, can be used for preparing in large scale; the preparation of the sheet material membrane electrode is not only suitable for efficient research and development, but also suitable for small-batch production and manufacture of enterprises, and is concerned once. However, the main attaching mode of the sheet material membrane electrode is the manual attaching mode, and the manual attaching mode is adopted, so that bubbles are easily generated at the attaching part of the frame, and certain potential safety hazards are caused to the sealing performance of the membrane electrode. And along with the narrowing of the frame of the membrane electrode and the diversification of the hollow shape of the frame, the difficulty of manual lamination is increased, the deviation of the upper frame and the lower frame is increased, so that the laminating efficiency is low, and the defective rate is high. For example, patent CN111009668a provides a method and an apparatus for bonding a membrane electrode frame. In order to overcome the problem that bubbles are generated in the laminating process, the frame and the proton membrane in the laminating station are vacuumized, and finally the frame of the membrane electrode is vertically laminated under the specified vacuum degree. Patent CN210296518U provides a fuel cell membrane electrode frame bonding device, which aims to reduce the defects caused by air bubbles during the bonding process. It is through frame and CCM under the laminating of ultraviolet curing resin layer, then directly utilize hot melt adhesive layer to carry out the perpendicular laminating with last frame under vacuum atmosphere on the frame down. The patents mentioned above all prevent the generation of bubbles by a certain strategy, but both methods adopt a vertical positive pressure mode, and the bonding process of the membrane electrode is complicated and takes a long time.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a membrane electrode frame laminating instrument solves the problem of proposing in the above-mentioned background art.

The utility model discloses a following technical scheme realizes: a membrane electrode frame bonding tool, comprising: the upper cover plate is arranged above the lower cover plate and connected with the lower cover plate through a rotating hinge, a middle hollow part is arranged in the middle of the lower cover plate, and a rear frame and a front meter frame are arranged on the upper surface of the lower cover plate.

In a preferred embodiment, two rotation hinges are provided, and the two rotation hinges are symmetrically arranged between the upper cover plate and the lower cover plate.

As a preferred embodiment, the rear frame and the front bezel are a concave structure with a hollow center and convex peripheries.

In a preferred embodiment, the rear frame and the front bezel are formed by a plurality of concave structures with different shapes, hollow in the middle and protruding in the periphery.

In a preferred embodiment, the upper cover plate has air holes on its surface.

As a preferred embodiment, the plurality of air holes are arranged, the structures of the plurality of air holes are the same, and the plurality of air holes are arranged on the surface of the upper cover plate in a penetrating manner at equal intervals.

In a preferred embodiment, the upper cover plate is a rotating mechanism, and the rotating angle of the upper cover plate is between 0 and 180 °.

After the technical scheme is adopted, the beneficial effects of the utility model are that: the tool can solve the problems of low laminating precision, low efficiency, high failure rate and the like of the traditional membrane electrode frame, and has simple and portable structure and lower cost. The frame attaching mode is not only suitable for the PEMFC, but also can be applied to membrane electrodes with other sandwich structures.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic view of the overall structure of the membrane electrode frame attaching tool of the present invention.

Fig. 2 is a side view of the membrane electrode frame attaching tool of the present invention.

In the figure, 1-an upper cover plate, 2-a lower cover plate, 3-a middle hollow part, 4-a rear frame, 5-a front frame and 6-a rotary hinge.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 2, the present invention provides a technical solution: a membrane electrode frame bonding tool, comprising: upper cover plate 1 and lower apron 2, upper cover plate 1 sets up the top of lapping 2 under, and upper cover plate 1 is connected with lapping 2 down through rotatory hinge 6, and lower apron 2 intermediate position is opened has well fretwork 3, and the upper surface of lapping 2 down is provided with back frame 4 and preceding table frame 5.

As an embodiment of the present invention, the rotating hinges 6 are provided with two rotating hinges 6, and the two rotating hinges 6 are symmetrically arranged between the upper cover plate 1 and the lower cover plate 2.

The upper cover plate 1 is a rotating mechanism, and the rotating angle of the upper cover plate 1 is 0-180 degrees.

The rear frame 4 and the front bezel 5 are concave structures with hollow middle parts and protruding peripheries, and the structures are convenient for positioning the frame film.

As an embodiment of the utility model, back frame 4 and preceding table frame 5 comprise the bellied concave structure all around of middle fretwork that a plurality of shapes differ, and this structure is convenient to be fixed a position the frame membrane.

As an embodiment of the present invention, the surface of the upper cover plate 1 is provided with air holes.

The plurality of air holes are arranged, the structure of the plurality of air holes is the same, the plurality of air holes are arranged on the surface of the upper cover plate 1 in an equidistant penetrating manner, and the air between the upper cover plate 1 and the lower cover plate 2 is conveniently discharged through the air holes.

As an embodiment of the present invention, in practical use, the following operation steps can be referred to.

Positioning the frame film: in order to improve the accuracy of film application, a positioning step is indispensable. The frame membrane that will laminate adsorbs under 2 on apron promptly earlier, then pastes the leftover bits that the frame was cut out in the part of pasting at back frame 4 and preceding table frame 5 fretwork for with frame membrane location. Then the double faced adhesive tape is pasted on the frame film or the protective film of the frame film is directly torn. Turn over through 1 upset of upper cover plate and close with lower cover plate 2, then 4 membranes of frame are glued on upper cover plate 1, paste the leftover bits of location through above-mentioned same locate mode at 1 upper frame both ends fretwork part of upper cover plate, require to stagger with the setpoint on 2 lower cover plates, take off the frame membrane at last, accomplish the frame location promptly. Each membrane electrode only needs to be positioned once, and repeated positioning is not needed.

Placing a frame film: and adsorbing the frame film in the positioning areas of the upper cover plate 1 and the lower cover plate 2, and tearing off the protective film.

Proton membrane or CCM placement: and adsorbing the proton membrane or CCM on the hollow-out 3 in the middle of the lower frame membrane, and uncovering the support protective membrane.

Attaching: the upper cover plate 1 and the lower cover plate 2 are rotatably attached around a rotating hinge 6. Thus finishing the lamination of the frame membrane of the membrane electrode.

In the implementation method, the frame film pre-pasting and positioning mode is adopted, so that the actual pasting precision of the subsequent membrane electrode frame is greatly improved, especially for the membrane electrode frame with complex figures; adopt rotatory laminating mode, compare in perpendicular malleation laminating mode, can effectually avoid membrane electrode frame laminating in-process local area to produce the bubble, its principle lies in the in-process that upper cover plate 1 and lower cover plate 2 closed, and a side frame membrane that is close to rotatory hinge 6 contacts earlier, then continues the in-process of closing and is really the process of catching up with the gas while laminating on the limit, and then can be with the gas outgoing between upper and lower frame, and the effectual bubble of having avoided between the frame membrane is remained.

Meanwhile, the laminating efficiency of the frame of the membrane electrode is greatly improved by adopting the laminating mode. The provided bonding tool is simple and portable in structure and low in cost, and can be used as a tool integrating frame bonding of the membrane electrode and spraying of the membrane electrode by modifying the bonding tool to a certain extent, so that the preparation efficiency of the membrane electrode can be further improved greatly.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A membrane electrode frame bonding tool, comprising: upper cover plate and lower apron, the upper cover plate sets up the top of apron under, the upper cover plate is connected through rotatory hinge and lower apron, its characterized in that, the intermediate position of apron is opened down has well fretwork, the upper surface of apron is provided with back frame and preceding table frame down.

2. The film electrode frame attaching tool according to claim 1, wherein: the rotary hinges are arranged in two numbers, and the two rotary hinges are symmetrically arranged between the upper cover plate and the lower cover plate.

3. The membrane electrode frame attachment tool of claim 2, wherein: the rear frame and the front frame are concave structures with hollow middle parts and convex peripheries.

4. The film electrode frame attaching tool according to claim 2, wherein: the back frame and the front frame are composed of a plurality of concave structures with different shapes, hollowed middle parts and raised peripheries.

5. The film electrode frame attaching tool according to claim 1, wherein: the surface of the upper cover plate is provided with air holes.

6. The film electrode frame attaching tool according to claim 5, wherein: the bleeder vent is equipped with a plurality ofly, and a plurality of bleeder vent structures are the same, and the surface at the upper cover plate is seted up to the equidistant formula of penetrating of a plurality of bleeder vents.

7. The film electrode frame attaching tool according to claim 2, wherein: the upper cover plate is a rotating mechanism, and the rotating angle of the upper cover plate is 0-180 degrees.