CN218241892U

CN218241892U - Bipolar plate bonding tool

Info

Publication number: CN218241892U
Application number: CN202221810167.0U
Authority: CN
Inventors: 王钦普; 刘勇志; 巩建坡; 孙言涛; 季广宜; 冯大海
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2023-01-06
Anticipated expiration: 2032-07-13

Abstract

The utility model discloses a bipolar plate bonding tool, which comprises a plurality of bipolar plates stacked in sequence and an electric heating structure, wherein the electric heating structure comprises a power supply and an electric heating plate, and an electric heating plate is arranged between any two or more adjacent bipolar plates; the electric heating plate comprises a heating plate body and a heating wire arranged in the heating plate body, a power supply is electrically connected with the heating wire, and the heating plate body is made of non-conductive materials. Through the adhesive between the anode plate and the cathode plate of the high-efficiency curing bipolar plate of the heating structure, the curing efficiency of the adhesive is effectively improved, the phenomenon that the adhesive of the bipolar plate located in the middle position in the prior art cannot be heated can be effectively avoided, and the bipolar plate bonding tool is simple in structure and convenient to assemble.

Description

Bipolar plate bonding tool

Technical Field

The utility model relates to a fuel cell technical field especially relates to a bipolar plate bonding frock.

Background

The proton exchange membrane fuel cell is a fuel cell formed by stacking bipolar plates, membrane electrodes and other components. The bipolar plate is one of the main composition structures of the proton exchange membrane fuel cell and is formed by bonding an anode plate and a cathode plate. Among other things, the flatness of the anode and cathode plates can affect the gas distribution uniformity and membrane electrode pressure uniformity of the formed stack.

At present, an anode plate and a cathode plate of a bipolar plate are generally bonded and cured by using an adhesive, in order to accelerate the rapid curing of the adhesive between the anode plate and the cathode plate of the bipolar plate, a conventional bipolar plate bonding tool is provided with heating plates on a cover plate and a bottom plate of a pressing device, the bipolar plate bonding tool is only suitable for curing the adhesive of a small number of stacked bipolar plates, and for the bipolar plates with a large number of stacked bipolar plates, the adhesive of the bipolar plate in the middle position cannot be heated, so that the curing efficiency of the adhesive of the bipolar plate is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bipolar plate bonding frock to solve bipolar plate bonding frock among the prior art to piling up a large amount of bipolar plates, the phenomenon that can not be heated exists in the adhesive of the bipolar plate that is located the intermediate position, leads to the problem of the solidification inefficiency of bipolar plate's adhesive.

To achieve the purpose, the utility model adopts the following technical proposal:

a bipolar plate bonding tool comprises:

a plurality of bipolar plates stacked in sequence;

the electric heating structure comprises a power supply and an electric heating plate, and one electric heating plate is arranged between any two or more adjacent bipolar plates; the electric heating plate includes the hot plate body with set up in this internal heater strip of hot plate, the power with the heater strip electricity is connected, just the hot plate body is made by non-conductive material.

Preferably, the heating wires are annularly distributed on the heating plate body.

Preferably, the heater wire and the heater plate body are integrally formed.

Preferably, the heating wire is located at a middle position of the heating plate body in a thickness direction of the heating plate body.

Preferably, the plate surface area of the heating plate body is larger than the plate surface area of the bipolar plate.

Preferably, the bipolar plate bonding tool further comprises a bottom plate and a limiting assembly arranged on the bottom plate, the plurality of bipolar plates and the electric heating plates are stacked on the bottom plate, and the limiting assembly is used for limiting the positions of the bipolar plates and the electric heating plates.

Preferably, the limiting assembly comprises a first limiting assembly, the first limiting assembly comprises two first limiting members arranged at intervals along a first direction, and the bipolar plates and the electric heating plate are located between the two first limiting members.

Preferably, the limiting assembly further comprises two second limiting assemblies arranged at intervals along a second direction, the bipolar plates and the electric heating plate are located between the two second limiting assemblies, and the first direction and the second direction are perpendicular to each other and parallel to the surface of the base plate.

Preferably, the second limiting component comprises a plurality of second limiting members distributed at intervals along the first direction.

Preferably, the bottom plate is integrally formed with one of the first stopper and the second stopper.

The utility model has the advantages that:

an object of the utility model is to provide a bipolar plate bonding frock, this bipolar plate bonding frock include a plurality of bipolar plates that pile up in proper order, still include electric heating structure. After the negative plate and the anode plate of bipolar plate pass through the preliminary bonding of adhesive, pile up a plurality of bipolar plates, and through all being equipped with an electric heating plate between arbitrary adjacent two or a plurality of bipolar plates, after the heater strip and the power electricity with electric heating plate are connected, the heater strip can generate heat and with heat conduction to the hot plate body, the hot plate body is again with heat conduction to rather than adjacent bipolar plate, if set up an electric heating plate between arbitrary adjacent a plurality of bipolar plates, can be conducted to other several bipolar plates with heat by the bipolar plate that is adjacent with the hot plate body, thereby can high efficiency solidification bipolar plate's the adhesive between the anode plate and the negative plate through this heating structure, the solidification efficiency of adhesive has effectively been improved, can effectively avoid the adhesive that lies in the bipolar plate of intermediate position among the prior art to have the phenomenon that can not be heated, and this bipolar plate bonding frock simple structure, be convenient for assembly.

Drawings

Fig. 1 is a schematic structural diagram of a bipolar plate bonding tool according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an electrical heating plate of a bipolar plate bonding tool according to an embodiment of the present invention.

In the figure:

100. a bipolar plate;

1. an electrical heating plate; 11. a heating plate body; 12. heating wires;

21. a base plate; 22. a first limit piece; 23. a second limiting member.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention, and the technical effects achieved by the present invention clearer, the following detailed description will be made with reference to the accompanying drawings for further describing the technical solutions of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The utility model provides a bipolar plate bonding frock, as shown in figure 1 and figure 2, this bipolar plate bonding frock includes a plurality of bipolar plates 100 that pile up in proper order, still includes the electrical heating structure. The electric heating structure comprises a power supply and an electric heating plate 1, wherein one electric heating plate 1 is arranged between any two or more adjacent bipolar plates 100; the electric heating plate 1 comprises a heating plate body 11 and a heating wire 12 arranged in the heating plate body 11, a power supply is electrically connected with the heating wire 12, and the heating plate body 11 is made of a non-conductive material.

As shown in fig. 1 and 2, in the bipolar plate bonding tool, after the cathode plate and the anode plate of the bipolar plate 100 are primarily bonded by the adhesive, a plurality of bipolar plates 100 are stacked, and one electric heating plate 1 is disposed between any two or more adjacent bipolar plates 100, after the heating wire 12 of the electric heating plate 1 is electrically connected to the power supply, the heating wire 12 can generate heat and conduct the heat to the heating plate body 11, and the heating plate body 11 conducts the heat to the bipolar plate 100 adjacent thereto, for example, if one electric heating plate 1 is disposed between any adjacent bipolar plates 100, the bipolar plate 100 adjacent to the heating plate body 11 can conduct the heat to other bipolar plates 100, so that the adhesive between the anode plate and the cathode plate of the bipolar plate 100 can be rapidly and efficiently cured by the heating structure, the curing efficiency of the adhesive is effectively improved, the phenomenon that the adhesive of the bipolar plate located at the middle position in the prior art cannot be heated can be effectively avoided, and the bonding tool is simple in structure and convenient to assemble. In the present embodiment, the heating wires 12 are resistance wires.

Fig. 1 shows only an example of a stacking manner in which one electrically heated plate 1 is disposed between any two adjacent bipolar plates 100.

As shown in fig. 2, the heating wires 12 are annularly distributed on the heating plate body 11. The heating wires 12 are annularly distributed on the heating plate body 11, so that the distribution positions of the heating wires 12 correspond to the distribution positions of the adhesive on the bipolar plate 100, the positions of the adhesive on the bipolar plate 100 are accurately heated through the electric heating plate 1, and the curing efficiency of the bipolar plate 100 is further improved. It will be appreciated that the distribution of the heating wires 12 may also be adaptively adjusted according to the distribution position of the adhesive on the bipolar plate 100.

Preferably, the heating wire 12 and the heater plate body 11 are integrally formed. Can make heater strip 12 be difficult for breaking away from heating plate body 11, reduce heater strip 12 and take place cracked risk, and reduce the quantity of spare part.

Preferably, the heating wire 12 is located at a middle position of the heater plate body 11 in a thickness direction of the heater plate body 11. With this arrangement, the heating plate body 11 can uniformly conduct heat to the two bipolar plates 100 adjacent thereto.

Preferably, the plate surface area of the heater plate body 11 is larger than the plate surface area of the bipolar plate 100. This is so arranged that the heater plate body 11 can completely cover the bipolar plate 100 adjacent thereto.

The bipolar plate bonding tool further comprises a bottom plate 21 and a limiting assembly arranged on the bottom plate 21, the plurality of bipolar plates 100 and the electric heating plate 1 are stacked on the bottom plate 21, and the limiting assembly is used for limiting the positions of the bipolar plates 100 and the positions of the electric heating plate 1. To prevent the position of the bipolar plate 100 and the electrical-heating plate 1 from being dislocated due to external factors.

Specifically, as shown in fig. 1, the limiting assembly includes a first limiting assembly including two first limiting members 22 arranged at intervals in a first direction, and the plurality of bipolar plates 100 and the electric heating plate 1 are located between the two first limiting members 22. To define the arrangement position of the plurality of bipolar plates 100 and the electrical-heating plate 1 to the base plate 21 in the first direction.

Specifically, the limiting assembly further comprises two second limiting assemblies arranged at intervals along the second direction, the bipolar plates 100 and the electric heating plate 1 are located between the two second limiting assemblies, and the first direction and the second direction are perpendicular to each other and are parallel to the surface of the base plate 21. To define the arrangement position of the plurality of bipolar plates 100 and the electric heating plate 1 to the base plate 21 in the second direction. More specifically, as shown in fig. 1, the second position-limiting component includes a plurality of second position-limiting members 23 spaced apart from each other along the first direction.

Further specifically, the bottom plate 21 is integrally molded with one of the first stopper 22 and the second stopper 23. By the arrangement, the number of parts can be reduced, and the assembly steps are simplified. As an alternative, the bottom plate 21, the first retaining member 22 and the second retaining member 23 are all formed separately and are screwed together.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a bipolar plate bonding frock which characterized in that includes:

a plurality of bipolar plates (100) stacked in sequence;

the electric heating structure comprises a power supply and an electric heating plate (1), and one electric heating plate (1) is arranged between any two or more adjacent bipolar plates (100); electric heating board (1) including hot plate body (11) with set up in heater strip (12) in hot plate body (11), the power with heater strip (12) electricity is connected, just hot plate body (11) are made by non-conductive material.

2. The bipolar plate bonding tool as claimed in claim 1, wherein the heating wires (12) are annularly distributed on the heating plate body (11).

3. The bipolar plate bonding tool according to claim 1, wherein the heating wire (12) and the heating plate body (11) are integrally formed.

4. The bipolar plate bonding tool according to claim 1, wherein the heating wire (12) is located at a middle position of the heating plate body (11) in a thickness direction of the heating plate body (11).

5. The bipolar plate bonding tool of claim 1, wherein the plate surface area of the heating plate body (11) is larger than the plate surface area of the bipolar plate (100).

6. The bipolar plate bonding tool according to any one of claims 1 to 5, further comprising a bottom plate (21) and a limiting assembly disposed on the bottom plate (21), wherein a plurality of bipolar plates (100) and the electric heating plate (1) are stacked on the bottom plate (21), and the limiting assembly is used for limiting the positions of the bipolar plates (100) and the electric heating plate (1).

7. The bipolar plate bonding tool according to claim 6, wherein the limiting assembly comprises a first limiting assembly, the first limiting assembly comprises two first limiting members (22) arranged at intervals along a first direction, and the plurality of bipolar plates (100) and the electric heating plate (1) are located between the two first limiting members (22).

8. The bipolar plate bonding tool according to claim 7, wherein the limiting assembly further comprises two second limiting assemblies arranged at intervals along a second direction, the bipolar plates (100) and the electric heating plate (1) are located between the two second limiting assemblies, and the first direction and the second direction are perpendicular to each other and parallel to the surface of the bottom plate (21).

9. The bipolar plate bonding tool according to claim 8, wherein the second limiting assembly comprises a plurality of second limiting members (23) which are distributed at intervals along the first direction.

10. The bipolar plate bonding tool according to claim 9, wherein the bottom plate (21) is integrally formed with one of the first retaining member (22) and the second retaining member (23).