CN217280888U

CN217280888U - Insulating plate of fuel cell and fuel cell

Info

Publication number: CN217280888U
Application number: CN202221235834.7U
Authority: CN
Inventors: 李江飞; 丁铁新; 方川
Original assignee: Beijing Sinohytec Co Ltd
Current assignee: Beijing Sinohytec Co Ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-08-23
Anticipated expiration: 2032-05-23

Abstract

The utility model relates to a fuel cell technical field, concretely relates to fuel cell's insulation board and fuel cell, wherein, fuel cell's insulation board includes: a main body; the first groove is arranged on the main body, and a plurality of first reinforcing pieces are arranged in the first groove; the second groove is formed in the main body and symmetrically arranged with the first groove, a plurality of second reinforcing pieces are arranged in the second groove, and the arrangement directions of the first reinforcing pieces and the second reinforcing pieces are the same. Through the arrangement of the first reinforcing piece and the second reinforcing piece, the contact area between the insulating plate and the upper end plate of the fuel cell stack can be effectively increased, and meanwhile, the overall rigidity of the insulating plate is also improved; when cooling liquid is introduced into the first groove and the second groove, even if the areas of the first groove and the second groove are too large, the end plate and the insulating plate are prevented from generating large deformation, and therefore the stacking performance of the fuel cell stack is improved.

Description

Insulating plate of fuel cell and fuel cell

Technical Field

The utility model relates to a fuel cell technical field, concretely relates to fuel cell's insulation board and fuel cell.

Background

The fuel cell is an energy conversion device, directly converts chemical energy stored in fuel gas and oxidant gas into electric energy through electrochemical reaction, has the advantages of high energy conversion efficiency and less environmental pollution, and has wide application prospect.

Generally, a fuel cell unit is composed of a membrane electrode, an anode plate and a cathode plate, a plurality of the cell units are connected in series to form a stacked body, and electricity generated by the stack is respectively led out from a cathode and an anode of the stacked body by using a collector plate to form a positive electrode and a negative electrode of the stack; the current collecting plates of the pile are separated from the end plates of the pile by insulating plates to prevent the short circuit of the external circuit of the pile, and the pile is fastened between the upper end plate and the lower end plate in a bolt or binding belt mode.

In the in-service use, need set up the recess on the insulation board for let in the coolant liquid, if the recess area is too big, insulation board and galvanic pile area of contact are not enough, can lead to end plate and insulation board to warp greatly, thereby influence the dress of galvanic pile and pile the performance.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming that the recess area on the insulation board is too big among the prior art, leads to producing great deformation between end plate and the insulation board, influences the problem of the dress pile performance of fuel cell pile to a fuel cell's insulation board and fuel cell are provided.

In order to solve the technical problem, the utility model provides a fuel cell's insulation board, include: a main body; the first groove is arranged on the main body, and a plurality of first reinforcing pieces are arranged in the first groove; the second groove is formed in the main body and symmetrically arranged with the first groove, a plurality of second reinforcing pieces are arranged in the second groove, and the arrangement directions of the first reinforcing pieces and the second reinforcing pieces are the same.

Further, the first reinforcing member and the second reinforcing member are respectively disposed at outer edges of the main body.

Further, the first reinforcing member and the second reinforcing member are arc-shaped structures.

Further, the curvature of the first stiffener is gradually reduced.

Further, the number of the first reinforcing members is larger than the number of the second reinforcing members.

Further, the number of the first reinforcing members is five, and the number of the second reinforcing members is four.

Further, the projection area of the first groove on the main body is larger than the projection area of the second groove on the main body.

Further, the first groove and the second groove are of special-shaped structures.

Further, the main body is made of an electric insulating material.

The utility model also provides a fuel cell, include fuel cell's insulation board.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a fuel cell's insulation board, include: a main body; the first groove is arranged on the main body, and a plurality of first reinforcing pieces are arranged in the first groove; the second groove is formed in the main body and symmetrically arranged with the first groove, a plurality of second reinforcing pieces are arranged in the second groove, and the arrangement directions of the first reinforcing pieces and the second reinforcing pieces are the same.

The main body is provided with a first groove and a second groove, a plurality of first reinforcing pieces are arranged in the first groove, a plurality of second reinforcing pieces are arranged in the second groove, and the arrangement of the first reinforcing pieces and the second reinforcing pieces can effectively improve the contact area between the insulating plate and the upper end plate of the fuel cell stack and improve the overall rigidity of the insulating plate; when cooling liquid is introduced into the first groove and the second groove, even if the areas of the first groove and the second groove are too large, the end plate and the insulating plate are prevented from generating large deformation, and therefore the stacking performance of the fuel cell stack is improved.

2. The utility model provides an insulating plate of a fuel cell, wherein the first reinforcing part and the second reinforcing part are respectively arranged at the outer edge of the main body; this setting can the effectual intensity and the holistic rigidity that increases the insulation board.

3. The utility model provides a fuel cell's insulation board, first reinforcement and second reinforcement are the arc structure, intensity and holistic rigidity that can effectual increase insulation board avoid the insulation board to produce great deformation.

4. The utility model provides a fuel cell's insulation board, the main part adopts the preparation of electrical insulation material to form to promote the insulating nature of this insulation board.

This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the disclosure, nor is it intended to be used to limit the scope of the disclosure.

Drawings

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

Fig. 1 is a schematic structural diagram of an insulating plate of a fuel cell provided by the present invention;

fig. 2 is a front view of an insulating plate of a fuel cell according to the present invention.

Description of reference numerals:

1-a body;

2-a first groove;

3-a second groove;

4-a first stiffener;

5-a second reinforcement;

6-positioning holes.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 1 to 2, the present invention provides an insulating plate for a fuel cell, including: a main body 1; the first groove 2 is arranged on the main body 1, and a plurality of first reinforcing pieces 4 are arranged in the first groove 2; the second groove 3 is formed in the main body 1, the second groove 3 and the first groove 2 are symmetrically arranged, a plurality of second reinforcing pieces 5 are arranged in the second groove 3, and the first reinforcing pieces 4 and the second reinforcing pieces 5 are opposite in arrangement direction.

The main body 1 is provided with a first groove 2 and a second groove 3, a plurality of first reinforcing pieces 4 are arranged in the first groove 2, a plurality of second reinforcing pieces 5 are arranged in the second groove 3, and the arrangement of the first reinforcing pieces 4 and the second reinforcing pieces 5 can effectively improve the contact area between the insulating plate and the upper end plate of the fuel cell stack and improve the overall rigidity of the insulating plate; when letting in the coolant liquid to first recess 2 and second recess 3, even first recess 2 and the area of second recess 3 are too big, also avoid producing great deformation between end plate and the insulation board to the dress of fuel cell pile performance has been improved.

In some alternative embodiments, the first reinforcing member 4 and the second reinforcing member 5 are respectively disposed at the outer edge of the main body 1; this setting can the effectual intensity and the holistic rigidity that increases the insulation board.

In some optional embodiments, because the first groove 2 and the second groove 3 need to be filled with cooling liquid, the arrangement direction of the first reinforcing member 4 faces the entering direction of the cooling liquid, and the first reinforcing member 4 and the second reinforcing member 5 are arranged in an arc-shaped structure, so that the strength and the integral rigidity of the insulating plate can be effectively increased, and the insulating plate is prevented from generating large deformation. Meanwhile, as the cooling liquid is less after entering the groove, the radian of the first reinforcing part 4 can be gradually reduced to match the entering of the cooling liquid.

The first reinforcing member 4 and the second reinforcing member 5 may also be square or rectangular, and may be set according to actual conditions.

In some alternative embodiments, the number of said first reinforcing elements 4 is greater than the number of said second reinforcing elements 5; specifically, the number of the first reinforcing members 4 is five, and the number of the second reinforcing members 5 is four. The number of the first reinforcing members 4 and the second reinforcing members 5 can be set according to actual conditions.

In some optional embodiments, the projected area of the first groove 2 on the main body 1 is larger than the projected area of the second groove 3 on the main body 1; therefore, the number of the first reinforcing parts 4 is larger than that of the second reinforcing parts 5, so that the requirements of strength and rigidity can be met by the first grooves 2 with large areas, and the insulating plate is prevented from being deformed greatly.

In this embodiment, the first groove 2 and the second groove 3 are shaped structures, and the specific shape structure can be set according to actual conditions, mainly for the convenience of entering the cooling liquid.

In some alternative embodiments, the main body 1 is made of an electrically insulating material, so as to improve the insulation of the insulating plate.

In some optional embodiments, the main body 1 is an integrally formed part, so that the overall strength and rigidity of the main body 1 are ensured, the phenomenon that the overall strength and rigidity of the insulating plate are affected due to cracks at the joint of the main body 1 which is manufactured by adopting a split manner is avoided, and the stacking performance of the fuel cell stack is ensured.

Meanwhile, the main body 1 is provided with a positioning hole 6 which is connected with an end plate and a collector plate of the galvanic pile by bolts.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. 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. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. An insulating plate for a fuel cell, comprising:

a main body (1);

a first groove (2) provided on the main body (1), and a plurality of first reinforcements (4) are provided in the first groove (2);

the second groove (3) is formed in the main body (1), the second groove (3) and the first groove (2) are symmetrically arranged, a plurality of second reinforcing pieces (5) are arranged in the second groove (3), and the arrangement directions of the first reinforcing pieces (4) and the second reinforcing pieces (5) are the same.

2. The insulating plate of a fuel cell according to claim 1, characterized in that said first reinforcement (4) and said second reinforcement (5) are respectively provided at the outer edges of said body (1).

3. The insulating plate of a fuel cell according to claim 1, characterized in that said first (4) and second (5) stiffeners are of an arc-shaped configuration.

4. The insulating plate of a fuel cell according to claim 3, characterized in that the arc of the first reinforcing member (4) is gradually reduced.

5. The insulating plate of a fuel cell according to any one of claims 1 to 4, characterized in that the number of said first reinforcing members (4) is greater than the number of said second reinforcing members (5).

6. The insulating plate of a fuel cell according to claim 5, characterized in that said first stiffeners (4) are five and said second stiffeners (5) are four.

7. The insulating plate of a fuel cell according to claim 5, characterized in that the projected area of the first groove (2) on the body (1) is greater than the projected area of the second groove (3) on the body (1).

8. The insulating plate of a fuel cell according to claim 5, characterized in that said first groove (2) and said second groove (3) are of a profiled structure.

9. The insulating plate of a fuel cell according to any one of claims 6 to 8, characterized in that the body (1) is made of an electrically insulating material.

10. A fuel cell characterized by comprising the insulating plate of the fuel cell according to any one of claims 1 to 9.