CN217405470U

CN217405470U - Electrode plate, fuel cell and fuel cell stack

Info

Publication number: CN217405470U
Application number: CN202221395729.XU
Authority: CN
Inventors: 周天天; 丛林; 王鹏
Original assignee: Weishi Energy Technology Co Ltd
Current assignee: Weishi Energy Technology Co Ltd
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-09-09
Anticipated expiration: 2032-05-27

Abstract

The utility model provides a polar plate, fuel monocell and fuel cell pile relates to fuel cell's technical field, and this polar plate includes the polar plate body, and the border of polar plate body is equipped with the headspace, and the headspace is equipped with the reservation breach, is equipped with two CVP interfaces in the headspace for supply the CVP pencil to connect and peg graft in the CVP interface by reserving the breach. The fuel cell includes a plate. The fuel cell stack includes a fuel cell. The technical problems that one CVP interface is arranged at the reserved space and one or more reserved spaces are arranged on the polar plate in the prior art are solved, two CVP interfaces are arranged in the limited reserved space, and the fault tolerance can be enhanced.

Description

Electrode plate, fuel cell and fuel cell stack

Technical Field

The utility model belongs to the technical field of fuel cell's technique and specifically relates to a polar plate, fuel monocell and fuel cell pile are related to.

Background

The fuel cell is a high-efficiency energy conversion power generation device which takes hydrogen as an optimal fuel and directly converts chemical energy in the fuel and oxidant into electric energy in an electrochemical reaction mode without a combustion process. The energy conversion efficiency is as high as 50-80% without the heat engine process and the limitation of Carnot cycle. The proton exchange membrane fuel cell is a fifth generation fuel cell developed after an alkaline fuel cell, a phosphoric acid type fuel cell, a molten carbonate fuel cell and a solid oxide fuel cell, and has the characteristics of lower working temperature, short starting time, high power density, quick load response, no electrolyte loss and the like.

The fuel cell is composed of a plurality of single cells, and the plurality of single cells need to be ensured to have good consistency during operation. CVP (Cell Voltage package) is designed as a unit for monitoring the uniformity of the cells. However, due to the requirement of increasing the volume-to-power target of the core, enough space cannot be reserved on the core for CVP interface, so that the CVP interface arrangement requirement is required to be achieved in a small enough area in a limited core space.

The single-chip fuel cell mainly comprises polar plates (a negative plate and a positive plate) and a membrane electrode, and a CVP interface is required to be arranged on the polar plates in order to meet the voltage acquisition requirement of a single cell. However, the space reserved for the CVP interface is large, which causes low utilization rate of the bipolar plate, and the volumetric specific power of the single cell is reduced, and correspondingly, the volumetric specific power of the core is reduced.

In the conventional technology, a CVP interface is usually provided at the headspace, and one or more headspace is provided on the plate.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a polar plate, fuel monocell and fuel cell pile to alleviate the headspace department that exists among the prior art and set up a CVP interface, simultaneously, set up the technical problem in one or more headspace on the polar plate.

In a first aspect, the present invention provides a polar plate, including: the electrode plate comprises an electrode plate body, wherein a reserved space is arranged at the edge of the electrode plate body, a reserved gap is formed in the reserved space, and two CVP interfaces are arranged in the reserved space and used for allowing a CVP wiring harness connector to be inserted into the CVP interfaces through the reserved gap.

Furthermore, the two CVP interfaces are arranged in an angle mode, so that the two groups of CVP wire harness connectors are connected with the corresponding CVP interfaces in an inserting mode along different directions.

Furthermore, the two CVP interfaces are arranged vertically, so that the two groups of CVP harness joints are inserted into the corresponding CVP interfaces along the vertical direction.

Further, the reserved gaps are arranged in two adjacent directions of the reserved space;

the two CVP interfaces respectively face the reserved gaps in the corresponding directions.

Further, the reserved space is a rectangular space, and the reserved space comprises a first side edge and a second side edge which are perpendicular to each other;

the reserved gap is arranged on one side opposite to the first side edge and the second side edge.

Further, the polar plate body is of a quadrilateral plate-shaped structure;

the reserved space is arranged at the top angle of the polar plate.

Furthermore, the CVP interface is inserted with a CVP wire harness joint;

one end of the CVP wire harness is fixedly embedded in the CVP wire harness joint.

Furthermore, the polar plate body is an anode plate, a cathode plate or a bipolar plate.

Has the advantages that:

the utility model provides a polar plate, polar plate body's border is equipped with the headspace, and the headspace is equipped with the reservation breach, is equipped with two CVP interfaces in the headspace, can supply the CVP pencil to connect and peg graft in the CVP interface by reserving the breach, so sets up, can arrange two CVP interfaces through setting up a headspace, on the basis that satisfies fuel cell voltage acquisition demand, need not additionally to set up the headspace on the polar plate body.

In a second aspect, the present invention provides a fuel cell, comprising: the plate of any of the preceding embodiments.

Has the advantages that:

the utility model provides a fuel cell includes aforementioned polar plate, from this, technical advantage and effect that this fuel cell can reach include technical advantage and effect that the polar plate can reach equally, no longer describe herein any more.

In a third aspect, the present invention provides a fuel cell stack, comprising: the fuel cell according to any one of the preceding embodiments.

Has the beneficial effects that:

the utility model provides a fuel cell pile includes aforementioned polar plate, from this, technical advantage and effect that this fuel cell pile can reach include technical advantage and effect that the polar plate can reach equally, no longer describe herein.

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 prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic partial structural view of a polar plate provided in an embodiment of the present invention at a first viewing angle;

fig. 2 is a schematic partial structural view of a polar plate provided in an embodiment of the present invention at a second viewing angle.

Icon:

100-a plate body; 110-reserved space; 111-a first side edge; 112-a second side edge; 113-reserving a gap;

a 200-CVP interface;

300-CVP harness joint;

400-CVP harness.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

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 the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Referring to fig. 1 and fig. 2, the present embodiment provides a pole plate, which includes a pole plate body 100, a reserved space 110 is disposed at an edge of the pole plate body 100, the reserved space 110 is provided with a reserved gap 113, and two CVP interfaces 200 are disposed in the reserved space 110, and are used for allowing a CVP harness connector 300 to be inserted into the CVP interfaces 200 through the reserved gap 113.

The polar plate that this embodiment provided, polar plate body 100's border is equipped with headspace 110, headspace 110 is equipped with reservation breach 113, be equipped with two CVP interfaces 200 in headspace 110, can supply CVP pencil joint 300 to peg graft in CVP interface 200 by reservation breach 113, so set up, can arrange two CVP interfaces 200 through setting up a headspace 110, on the basis that satisfies fuel cell voltage acquisition demand, need not additionally to set up headspace 110 on the polar plate body.

In addition, the two CVP interfaces 200 are arranged, even if one CVP interface 200 is damaged, the functions of the pole plates cannot be influenced, the fault tolerance of the pole plates can be enhanced, and the two CVP interfaces 200 cannot interfere with each other to influence the installation of each other.

In this embodiment, the two CVP interfaces 200 are disposed at an angle, so that the two sets of CVP harness connectors 300 are inserted into the corresponding CVP interfaces 200 along different directions, and the two sets of CVP interfaces 200 are disposed so that the two CVP interfaces 200 are not affected by each other, and meanwhile, when the CVP harness connectors 300 are respectively installed, the two sets of CVP harness connectors 300 can be inserted into the corresponding CVP interfaces 200 along different directions, so that the CVP harness connectors 300 are not interfered with each other when installed.

Further, the two CVP harness connectors 300 are vertically arranged, so that the two sets of CVP harness connectors 300 are inserted into the corresponding CVP connectors 200 in a vertical direction.

The perpendicular setting angle can facilitate the insertion of the CVP harness connector 300 into the corresponding CVP interface 200, and at the same time, can be used when sufficient space is left in the reserved space 110 for the worker to assemble the CVP harness connector 300.

In this embodiment, the reserved gaps 113 are disposed in two adjacent directions of the reserved space 110; the two CVP ports 200 are respectively faced to the reserved gaps 113 in the corresponding directions, so that the two CVP harness connectors 300 are not interfered when being assembled.

Referring to fig. 1, the headspace 110 is a rectangular space, and the headspace 110 includes a first side edge 111 and a second side edge 112 that are perpendicular to each other; the reserved gap 113 is opened at a side opposite to the first side edge 111 and the second side edge 112.

The reserved space 110 with the structure is convenient to process and manufacture; meanwhile, the first side edge 111 and the second side edge 112 are vertically arranged, so that the area of the reserved space 110 can be maximized, and the first side edge 111 and the second side edge 112 are both straight edges, so that the corresponding CVP interface 200 can be conveniently arranged in the reserved space 110.

In one embodiment of the present application, the plate body 100 has a quadrangular plate-shaped structure; the reserved space 110 is disposed at a top corner of the plate body 100, and similarly, the processing and manufacturing of the reserved space 110 are facilitated.

Specifically, the CVP interface 200 is inserted with the CVP harness connector 300 in a snap-fit manner; one end of the CVP harness 400 is fixedly fitted into the CVP harness connector 300.

Through the arrangement, the two groups of CVP wire harness connectors 300 can be inserted into the corresponding CVP interfaces 200 in the vertical direction, and wiring is facilitated.

On the basis of the above embodiments, the plate body 100 in the present embodiment may be an anode plate, a cathode plate, or a bipolar plate. Illustratively, the plate body 100 may be a graphite bipolar plate, a metal bipolar plate, a composite bipolar plate, or the like.

The present embodiment also provides a fuel cell including the foregoing electrode plate. The fuel single cell provided by the embodiment includes the foregoing electrode plate, and therefore, the technical advantages and effects achieved by the fuel single cell also include the technical advantages and effects achieved by the electrode plate, and further description is omitted here. Specifically, the fuel cell of the present embodiment is applicable to vehicles, ships, aircraft, and the like.

The present embodiment also provides a fuel cell stack including a plurality of fuel cells.

Wherein, a Membrane Electrode Assembly (MEA) is arranged between two adjacent polar plates.

Specifically, the membrane electrode assembly includes a catalyst-coated proton exchange membrane and gas diffusion layers, wherein the gas diffusion layers are located at both sides of the proton exchange membrane, and the membrane electrode assembly is spaced from the electrode plate by a sealing material to perform an electrochemical reaction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A pole plate, comprising: the pole plate comprises a pole plate body (100), wherein a reserved space (110) is arranged at the edge of the pole plate body (100), a reserved gap (113) is formed in the reserved space (110), two CVP interfaces (200) are arranged in the reserved space (110), and the CVP wire harness connector (300) is inserted into the CVP interface (200) through the reserved gap (113).

2. The pole plate of claim 1, wherein two of the CVP ports (200) are angled such that two sets of CVP harness connectors (300) are plugged in different directions to the corresponding CVP ports (200).

3. The pole plate of claim 1, wherein two CVP ports (200) are vertically arranged such that two sets of CVP harness connectors (300) are plugged into the corresponding CVP ports (200) in a vertical direction.

4. The pole plate according to claim 1, characterized in that the obligatory gap (113) is provided in two adjacent directions of the obligatory space (110);

the two CVP interfaces (200) face the reserved gaps (113) in the corresponding directions.

5. The pole plate of claim 1, wherein the headspace (110) is a rectangular headspace, the headspace (110) comprising a first side edge (111) and a second side edge (112) perpendicular to each other;

the reserved gap (113) is arranged on one side opposite to the first side edge (111) and the second side edge (112).

6. The pole plate of claim 1, wherein the pole plate body (100) is a quadrangular plate-like structure;

the reserved space (110) is arranged at the top corner of the polar plate body (100).

7. The pole plate of any of claims 1 to 6, wherein the CVP interface (200) is plugged with a CVP harness connector (300);

one end of the CVP harness (400) is fixedly embedded in the CVP harness joint (300).

8. The plate according to claim 1, characterized in that the plate body (100) is an anode plate, a cathode plate or a bipolar plate.

9. A fuel cell, characterized by comprising: the plate of any of claims 1-8.

10. A fuel cell stack, comprising: a plurality of fuel cells as claimed in claim 9.