CN218004934U - Seven unification membrane electrode package tools - Google Patents
Seven unification membrane electrode package tools Download PDFInfo
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- CN218004934U CN218004934U CN202221734472.6U CN202221734472U CN218004934U CN 218004934 U CN218004934 U CN 218004934U CN 202221734472 U CN202221734472 U CN 202221734472U CN 218004934 U CN218004934 U CN 218004934U
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Abstract
The utility model aims at providing a seven-in-one membrane electrode packaging jig, can carry out vacuum adsorption, positioning accuracy height, improvement productivity and finished product qualification rate to seven-in-one membrane electrode, including the upper cover plate that is equipped with upper vacuum adsorption runner, upper groove, the lower cover plate that is equipped with lower vacuum adsorption runner, lower groove, upper groove and lower groove position correspond and form the holding chamber that is used for placing seven-in-one membrane electrode jointly when buckling each other, upper vacuum adsorption runner, lower vacuum adsorption runner are during operation through the low pressure with seven-in-one membrane electrode evacuation; an upper positioning frame and a lower positioning frame are arranged between the upper cover plate and the lower cover plate, the upper positioning frame is provided with an upper positioning opening matched with the shape and the size of the upper groove, and the lower positioning frame is provided with a lower positioning opening matched with the shape and the size of the lower groove; the upper cover plate or/and the lower cover plate is/are provided with a positioning structure which is used for forming positioning connection with the upper positioning frame and the lower positioning frame; the area of the upper positioning frame is larger than that of the lower positioning frame, and the upper positioning frame can completely cover the lower positioning frame.
Description
Technical Field
The utility model relates to a in the hydrogen energy field, more specifically say, relate to a seven unification membrane electrode package tools.
Background
The membrane electrode assembly is the most core part of the proton exchange membrane fuel cell and mainly comprises three key materials of a proton exchange membrane, a catalyst and a gas diffusion layer and a frame. The membrane electrode assembly is a seven-layer membrane electrode assembly and comprises a proton exchange membrane, an anode catalyst layer, a cathode catalyst layer, an anode diffusion layer, a cathode diffusion layer and a sealing gasket for sealing and fixing. The catalytic layer is composed mainly of catalyst and proton exchange ionomer, where the electrochemical reaction proceeds. The gas diffusion layer serves as a supporting layer to play a role in fixing the catalyst layer and the proton exchange membrane, and meanwhile, the porous structure of the gas diffusion layer plays a role in gas conduction, so that gas is uniformly diffused to the catalyst layer, and meanwhile, a water management function is played.
In order to facilitate taking and improve the working efficiency, the conventional hydrogen fuel cell membrane electrode plate pair needs to be packaged twice by five-in-one and seven-in-one. The five-in-one production packaging process comprises the following steps: firstly, the lower frame glue surface is paved on a workbench in an upward mode, then the three-layer structure ccm is paved on the lower frame in an aligning mode, the fact that the overlapping portion of the ccm and the frame is even is guaranteed, then the upper frame glue surface is downward, the upper frame glue surface and the lower frame glue surface are aligned, and hot pressing treatment is conducted on the upper frame glue surface and the lower frame glue surface through an oil press. The seven-in-one production packaging processing process comprises the following steps: the five-in-one structure that will encapsulate and accomplish is laminated with gas diffusion layer GDL, uses the point gum machine to come out the gluey line that slightly is greater than ccm on GDL at first, laminates gas diffusion layer and five-in-one structure again, guarantees that gluey line is on the frame and counterpoint the accuracy.
The utility model patent of application number 202111234052.1 discloses a fuel cell membrane electrode frame vacuum laminating method and device, what adopt is the encapsulation of five unification frames, adopts the evacuation mode to counterpoint each sheet during the encapsulation of five unification frames, goes up the vacuum adsorption board generally great, heavier, and the operation is difficult relatively, and simultaneously, there is the accurate problem of counterpointing of being difficult to upper plate and hypoplastron. The subsequent mode that still need carry out seven unification hot pressing laminating GDL, the whole operation procedure is complicated, and many times of hot pressing processing time is longer.
The five-in-one membrane electrode and the seven-in-one membrane electrode have the technical problems of poor alignment precision, poor flatness, uneven thickness, high defective rate, complex working procedure, high operation difficulty, difficult discharge of bubbles, easy wrinkling and the like during packaging and pressing, so the seven-in-one membrane electrode packaging jig is researched and designed in the application.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a seven unification membrane electrode package tools have and to carry out accurate location processing to seven unification membrane electrodes, carry out vacuum adsorption fast, high-efficient, accomplish once only seven unification processing, carry high yield.
A seven-in-one membrane electrode packaging jig comprises an upper cover plate and a lower cover plate, wherein the upper cover plate is provided with an upper vacuum adsorption flow channel and an upper groove, the lower cover plate is provided with a lower vacuum adsorption flow channel and a lower groove, the upper groove and the lower groove correspond to each other in position and form an accommodating cavity for placing a seven-in-one membrane electrode together when being buckled with each other, and the upper vacuum adsorption flow channel and the lower vacuum adsorption flow channel can vacuumize the seven-in-one membrane electrode through low pressure when working;
an upper positioning frame and a lower positioning frame are arranged between the upper cover plate and the lower cover plate, the upper positioning frame is provided with an upper positioning opening matched with the shape and the size of the upper groove, and the lower positioning frame is provided with a lower positioning opening matched with the shape and the size of the lower groove;
the upper cover plate or/and the lower cover plate is/are provided with a positioning structure which is used for forming positioning connection with the upper positioning frame and the lower positioning frame;
the area of the upper positioning frame is larger than that of the lower positioning frame, and the upper positioning frame can completely cover the lower positioning frame.
The utility model discloses further set up to, location structure is including being located the upper cover plate or lapping down the locating pin on, goes up the locating frame and all is equipped with the locating hole with the mutual gomphosis of locating pin with locating frame down, and the thickness sum of locating frame and lower locating frame is gone up to the height-equivalent of locating pin.
The utility model is further arranged in such a way that the upper vacuum adsorption flow channel comprises a plurality of upper independent flow channels arranged in the upper cover plate from inside to outside, each upper independent flow channel is connected with an upper vacuumizing port in a conduction way, one side of the upper cover plate facing the lower cover plate is provided with a plurality of adsorption holes, and the adsorption holes are communicated with the flow channels;
the lower vacuum adsorption flow channel comprises a plurality of lower independent flow channels arranged from inside to outside in the lower cover plate, each lower independent flow channel is connected with a lower vacuumizing port in a conduction mode, one side, facing the upper cover plate, of the lower cover plate is provided with a plurality of adsorption holes, and the adsorption holes are communicated with the flow channels.
The utility model is further arranged that the upper groove corresponds to at least one upper independent runner, and the upper independent runner in the corresponding area is not communicated with the upper independent runner in the area corresponding to the non-upper groove; the lower groove corresponds to at least one lower independent flow channel, and the lower independent flow channel in the corresponding area is not communicated with the lower independent flow channel in the area corresponding to the non-lower groove.
The utility model is further arranged that the shapes and sizes of the upper groove and the lower groove are consistent with the shapes and sizes of the gas diffusion layers in the seven-in-one membrane electrode, and the depths of the upper groove and the lower groove are consistent with the thicknesses of the gas diffusion layers in the seven-in-one membrane electrode; the shapes of the upper positioning opening and the lower positioning opening are consistent with the shape of the membrane electrode CCM in the seven-in-one membrane electrode, and the areas of the upper positioning opening and the lower positioning opening are smaller than the area of the membrane electrode CCM in the seven-in-one membrane electrode.
By adopting the technical scheme, the utility model has the advantages of as follows:
1. the seven-in-one membrane electrode can be subjected to vacuum adsorption through the upper vacuum adsorption flow channel, the lower vacuum adsorption flow channel and the positioning structure, and the positioning structure can be used for positioning, the upper cover plate, the upper positioning frame, the lower positioning frame and the lower cover plate, so that the positioning effect is effectively realized, the positioning accuracy is improved, and the positioning and fixing capabilities are strong;
2. the upper vacuum adsorption flow passage and the lower vacuum adsorption flow passage are structurally arranged, so that bubbles in the frame are eliminated, the time of twice hot pressing is saved, and the productivity and the qualified rate of finished products are improved.
Drawings
FIG. 1 is a first schematic view of a seven-in-one membrane electrode package fixture of the present invention;
FIG. 2 is a second schematic structural view of the seven-in-one membrane electrode package fixture of the present invention;
1. an upper cover plate; 11. an upper vacuum pumping port; 2. an upper positioning frame; 21. an upper positioning opening; 22. positioning holes; 3. a lower positioning frame; 31. a lower positioning opening; 32. positioning holes; 4. a lower cover plate; 41. a lower vacuum pumping port; 42. a lower groove; 43. a lower independent runner; 44. positioning pins; 91. a gas diffusion layer; 92. and a membrane electrode CCM.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The present invention will be further described with reference to fig. 1-2.
The utility model provides a seven unification membrane electrode package tools, includes upper cover plate 1, last locating frame 2, lower locating frame 3, apron 4 down in proper order from top to bottom, wherein:
the upper cover plate 1 is provided with an upper vacuum adsorption flow channel and an upper groove, the upper vacuum adsorption flow channel comprises a plurality of upper independent flow channels arranged inside the upper cover plate 1 from inside to outside, each upper independent flow channel is connected with an upper vacuumizing port 11 in a conduction mode, one side, facing the lower cover plate 4, of the upper cover plate 1 is provided with a plurality of upper adsorption holes, the upper adsorption holes are communicated with the upper independent flow channels, and the upper adsorption holes positioned at the upper groove are communicated with the upper groove;
the lower cover plate 4 is provided with a lower vacuum adsorption flow channel and a lower groove 42, the lower vacuum adsorption flow channel comprises a plurality of lower independent flow channels 43 arranged inside the lower cover plate 4 from inside to outside, each lower independent flow channel 43 is connected with a lower vacuumizing port 41 in a conduction mode, one side, facing the upper cover plate 1, of the lower cover plate 4 is provided with a plurality of lower adsorption holes, the lower adsorption holes are communicated with the lower independent flow channels 43, and the lower adsorption holes located at the lower groove 42 are communicated with the lower groove 42;
the upper groove corresponds to at least one upper independent flow channel, and the upper independent flow channel in the corresponding area is not communicated with the upper independent flow channel in the area corresponding to the non-upper groove; the lower groove 42 corresponds to at least one lower independent flow channel 43, and the lower independent flow channel 43 in the corresponding area is not communicated with the lower independent flow channel 43 in the area corresponding to the non-lower groove 42;
the upper cover plate 1 and the lower cover plate 4 are identical in structure, size and shape;
the upper positioning frame 2 is provided with an upper positioning opening 21 matched with the shape and the size of the upper groove, and the lower positioning frame 3 is provided with a lower positioning opening 31 matched with the shape and the size of the lower groove 42; one side of each of the upper positioning frame 2 and the lower positioning frame 3 is a glue surface with self-adhesive; the upper groove and the lower groove 42 correspond to each other in position and form an accommodating cavity for placing the seven-in-one membrane electrode together when being buckled with each other, and the upper vacuum adsorption flow passage and the lower vacuum adsorption flow passage respectively pass through the vacuumizing port when working, so that the seven-in-one membrane electrode can be vacuumized through low pressure;
the upper positioning opening 21 and the lower positioning opening 31 are located between the upper groove and the lower groove 42, the shapes and the sizes of the upper groove and the lower groove 42 are all consistent with the shapes and the sizes of the gas diffusion layer 91 in the seven-in-one membrane electrode, the depths of the upper groove and the lower groove 42 are all consistent with the thickness of the gas diffusion layer 91 in the seven-in-one membrane electrode, and the shapes of the gas diffusion layer 91, the membrane electrode CCM92, the upper positioning opening 21 and the lower positioning opening 31 are the same; the area of the gas diffusion layer 91 is the largest, the area of the membrane electrode CCM92 is the second largest, and the upper positioning opening 21 and the lower positioning opening 31 have the same shape and are slightly smaller than the area of the membrane electrode CCM 92;
the area of the upper positioning frame 2 is larger than that of the lower positioning frame 3, the upper positioning frame 2 can completely cover the lower positioning frame 3, and the lower cover plate 4 is provided with four positioning pins 44 (the number of the positioning pins is not necessarily 4, and four positioning pins are preferably arranged to enable four corners of the jig to be well positioned and distributed at 4 corners of the lower cover plate 4); the positions of the upper positioning frame 2 and the lower positioning frame 3 corresponding to the four positioning pins 44 are respectively provided with positioning holes matched with the positioning pins 44;
as another structural modification, the positioning pins 44 may be provided on the upper cover plate 1; or the positioning pin 44 is arranged on the upper positioning frame 2 or the lower positioning frame 3, and the upper cover plate 1 or the lower cover plate 4 is provided with a positioning hole;
as a preferred embodiment, the height of the positioning pins 44 is equal to the sum of the thicknesses of the upper positioning frame 2 and the lower positioning frame 3.
The seven-in-one membrane electrode packaging method comprises the following steps:
the first step is as follows: embedding the gas diffusion layer 91 into the lower groove 42, opening the lower vacuum adsorption flow channel in the lower groove 42 to perform vacuum pumping, and at the moment, applying glue matched with the lower positioning frame 3 (non-lower positioning opening 31) on the peripheral points of the gas diffusion layer 91;
the second step: then the rubber surface of the lower positioning frame 3 is upwards fixed at the positioning pin 44, and then the membrane electrode CCM92 is placed in the lower positioning opening 31;
the third step: the upper positioning frame 2 is fixed at the positioning pin 44 in turn with the adhesive surface facing downwards, the upper positioning frame 2 completely covers the lower positioning frame 3 and clamps the membrane electrode CCM92, the lower vacuum adsorption flow channel is opened for vacuum pumping, and air between the gaps of the upper and lower positioning frames 3 is pumped away;
the fourth step: dispensing is carried out on one surface of the upper positioning frame 2 far away from the lower cover plate 4, dispensing tracks are located at the non-upper positioning port 21, and the dispensing tracks are consistent with the dispensing tracks on the gas diffusion layer 91 in the upper groove;
the fifth step: embedding the other gas diffusion layer 91 with the dispensing track into the upper groove, enabling the dispensing track to face one side of the upper positioning frame 2, opening the upper vacuum adsorption flow channel for vacuumizing, then fastening the upper cover plate 1 and the lower cover plate 4 up and down, then opening the lower vacuum adsorption flow channel, simultaneously vacuumizing the upper vacuum adsorption flow channel and the lower vacuum adsorption flow channel, and then closing the vacuum of the upper groove area to enable the gas diffusion layer 91 in the upper groove to fall to be attached to the upper positioning frame 2;
and a sixth step: and (3) closing all the vacuumized areas, taking out the seven-in-one membrane electrode semi-finished product, placing the seven-in-one membrane electrode semi-finished product on a separately manufactured Teflon jig (the Teflon jig is provided with a containing cavity which is completely matched with the seven-in-one membrane electrode semi-finished product in shape and size), and placing the seven-in-one membrane electrode semi-finished product on a hot press for hot pressing treatment to obtain the complete seven-in-one membrane electrode finished product.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (5)
1. The utility model provides a seven unification membrane electrode package tools, includes upper cover plate and lower apron, its characterized in that: the upper cover plate is provided with an upper vacuum adsorption flow channel and an upper groove, the lower cover plate is provided with a lower vacuum adsorption flow channel and a lower groove, the upper groove and the lower groove correspond to each other in position and form an accommodating cavity for placing the seven-in-one membrane electrode together when being buckled with each other, and the seven-in-one membrane electrode can be vacuumized through low pressure when the upper vacuum adsorption flow channel and the lower vacuum adsorption flow channel work;
an upper positioning frame and a lower positioning frame are arranged between the upper cover plate and the lower cover plate, the upper positioning frame is provided with an upper positioning opening matched with the shape and the size of the upper groove, and the lower positioning frame is provided with a lower positioning opening matched with the shape and the size of the lower groove; the upper cover plate or/and the lower cover plate is/are provided with a positioning structure which is used for forming positioning connection with the upper positioning frame and the lower positioning frame;
the area of the upper positioning frame is larger than that of the lower positioning frame, and the upper positioning frame can completely cover the lower positioning frame.
2. The seven-in-one membrane electrode packaging jig of claim 1, wherein: the positioning structure comprises positioning pins positioned on the upper cover plate or the lower cover plate, the upper positioning frame and the lower positioning frame are respectively provided with positioning holes embedded with the positioning pins, and the height of each positioning pin is equal to the sum of the thicknesses of the upper positioning frame and the lower positioning frame.
3. The jig for encapsulating a membrane electrode assembly according to claim 1 or 2, wherein: the upper vacuum adsorption flow channel comprises a plurality of upper independent flow channels arranged in the upper cover plate from inside to outside, each upper independent flow channel is connected with an upper vacuumizing port in a conduction mode, one side, facing the lower cover plate, of the upper cover plate is provided with a plurality of adsorption holes, and the adsorption holes are communicated with the flow channels;
the lower vacuum adsorption flow channel comprises a plurality of lower independent flow channels arranged from inside to outside in the lower cover plate, each lower independent flow channel is connected with a lower vacuumizing port in a conduction mode, one side, facing the upper cover plate, of the lower cover plate is provided with a plurality of adsorption holes, and the adsorption holes are communicated with the flow channels.
4. The jig for encapsulating a membrane electrode assembly according to claim 1 or 2, wherein: the upper groove corresponds to at least one upper independent flow channel, and the upper independent flow channel in the corresponding area is not communicated with the upper independent flow channel in the area corresponding to the non-upper groove; the lower groove corresponds to at least one lower independent flow channel, and the lower independent flow channel in the corresponding area is not communicated with the lower independent flow channel in the area corresponding to the non-lower groove.
5. The jig for encapsulating a membrane electrode assembly according to claim 1 or 2, wherein: the shapes and sizes of the upper groove and the lower groove are consistent with those of the gas diffusion layer in the seven-in-one membrane electrode, and the depths of the upper groove and the lower groove are consistent with those of the gas diffusion layer in the seven-in-one membrane electrode; the shapes of the upper positioning opening and the lower positioning opening are consistent with the shape of the membrane electrode CCM in the seven-in-one membrane electrode, and the areas of the upper positioning opening and the lower positioning opening are smaller than the area of the membrane electrode CCM in the seven-in-one membrane electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221734472.6U CN218004934U (en) | 2022-07-05 | 2022-07-05 | Seven unification membrane electrode package tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221734472.6U CN218004934U (en) | 2022-07-05 | 2022-07-05 | Seven unification membrane electrode package tools |
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| Publication Number | Publication Date |
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| CN218004934U true CN218004934U (en) | 2022-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221734472.6U Active CN218004934U (en) | 2022-07-05 | 2022-07-05 | Seven unification membrane electrode package tools |
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| CN (1) | CN218004934U (en) |
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- 2022-07-05 CN CN202221734472.6U patent/CN218004934U/en active Active
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