CN215933650U

CN215933650U - Current collection and connection structure of fuel cell and fuel cell

Info

Publication number: CN215933650U
Application number: CN202122022864.1U
Authority: CN
Inventors: 孙健; 曹寅亮; 陈泽民; 范冬琪; 徐乃涛; 徐鹏杰; 林滨
Original assignee: Zhejiang Tianneng Hydrogen Energy Technology Co ltd
Current assignee: Zhejiang Tianneng Hydrogen Energy Technology Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-03-01
Anticipated expiration: 2031-08-25

Abstract

The utility model discloses a current collection and output structure of a fuel cell, wherein the fuel cell comprises a galvanic pile, the current collection and output structure comprises two current collection plates positioned on two sides of the galvanic pile, the current collection and output structure also comprises a current collection plate, pins are arranged on the current collection plate, and jacks matched with the pins are arranged on the side surfaces of the current collection plates. Compared with the traditional collector plate, the utility model has more flexibility when the fuel cell integrated module is installed, does not block the installation of the module and simplifies the design of the module.

Description

Current collection and connection structure of fuel cell and fuel cell

Technical Field

The utility model relates to the technical field of fuel cells, in particular to a current collection and extraction structure of a fuel cell and the fuel cell.

Background

The current generated in the fuel cell stack is mainly output to the outside through an output terminal structure on a current collecting plate, and the current collecting plate is made of a conductive metal plate, such as a copper plate, an aluminum plate, and the like. One or two output structures are arranged on the current collecting plate and are used for being connected with an external connecting line in a lap joint mode to intensively output the current generated in the galvanic pile.

The patent specification of publication No. CN110676478B discloses a current collecting plate for a hydrogen fuel cell stack, which comprises a current collecting plate body, wherein the current collecting plate body is in a metal plate shape and consists of a current collecting surface and a terminal, the current collecting surface is used for contacting with a graphite polar plate of the stack to collect the current of the stack, the terminal is used for being connected with a test lead, the current collecting surface adopts a non-planar structure and is contacted with the graphite polar plate through a convex part of the non-planar structure, the terminal is provided with a screw hole and a quick-plugging structure, and the quick-plugging structure is matched with a quick-plugging connector on the test lead to realize quick plugging and unplugging during testing.

The publication number discloses in CN 210296491U's patent specification a make things convenient for collecting plate output end structure of overlap joint load, including current collector and external wiring board, the current collector with all opened the bar hole on the external wiring board, the current collector is located on the external wiring board and the crossing bar hole intercommunication department of two boards forms the mounting hole, the aperture size of mounting hole changes along with the change of current collector and external wiring board relative position, be provided with the connecting piece that is used for fixed current collector and external wiring board in the mounting hole.

In above-mentioned two kinds of schemes, the wiring end or wiring board all adopt non-detachable connected mode with the current collector, and the flexibility is not high, when the installation of fuel cell integrated module, can hinder the module installation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a current collection and extraction structure of a fuel cell, which has high flexibility and does not obstruct the installation of a module.

The utility model provides a fuel cell's collection connects out structure, fuel cell includes the pile, collection connects out structure is including two current collector plates that are located the pile both sides, collection connects out structure still includes the current collecting plate, be provided with on the current collecting plate and participate in, the side of current collector plate be provided with participate in the complex jack.

In this scheme, current collecting plate and current collecting plate adopt bayonet design, can change current collecting plate structure according to galvanic pile practical application occasion, compare traditional current collecting plate, when the installation of fuel cell integrated module, this scheme has more the flexibility, and can not hinder the module installation, simplifies the module design.

Preferably, the collector plate is provided with three pins distributed at intervals, and the collector plate is correspondingly provided with three jacks.

Preferably, the current collecting plate has a sheet structure.

Preferably, the collector plate is provided with a wiring hole at a side thereof remote from the pin.

Preferably, the wiring holes are provided in two.

The utility model aims to provide a fuel cell, which comprises the current collection and extraction structure.

Preferably, the two collector plates are located at the same end of the same side of the stack.

The utility model has the beneficial effects that:

compared with the traditional collector plate, the utility model has more flexibility when the fuel cell integrated module is installed, does not block the installation of the module and simplifies the design of the module.

Drawings

FIG. 1 is a schematic structural diagram of a current collecting and tapping structure according to the present invention;

FIG. 2 is an exploded view of the current collecting and tapping structure according to the present invention;

fig. 3 is a schematic structural diagram of the fuel cell electric push of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 3, a fuel cell includes: the bipolar plate pile comprises a pile 3 formed by stacking a plurality of bipolar plates, current collecting plates 1 arranged on two sides of the pile 3 and end plates 4 respectively positioned on the outer sides of the current collecting plates 1 and used for fixing the current collecting plates 1 and the pile 3.

As shown in fig. 1 and 2, the current collecting and extracting structure of the fuel cell includes two current collecting plates 1 on both sides of a stack 3 and a current collecting plate 2 of a sheet structure corresponding to each current collecting plate 1; one side of the collector plate 2 is provided with three pins 21 distributed at intervals, and the side surface of the collector plate 1 is provided with three insertion holes 11 matched with the pins 21. When mounting, the pins 21 of the current collecting plate 2 are inserted into the insertion holes 11 of the current collecting plate 1. The collector plates 2 are located at the same end of the same side of the stack 3.

In this embodiment, the collector plate 2 is provided with two wiring holes 22 on the side away from the pin 21.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a structure is connect out to fuel cell's collection electricity, fuel cell includes the pile, the collection electricity is connected out the structure and is included two collector plates that are located the pile both sides, its characterized in that: the current collection output structure further comprises a current collection plate, wherein pins are arranged on the current collection plate, and jacks matched with the pins are arranged on the side face of the current collection plate.

2. The current collecting and extracting structure of a fuel cell according to claim 1, characterized in that: the collector plate is provided with three pins distributed at intervals, and the collector plate is correspondingly provided with three jacks.

3. The current collecting and extracting structure of a fuel cell according to claim 1, characterized in that: the collector plate is of a sheet structure.

4. The current collecting and extracting structure of a fuel cell according to claim 1, characterized in that: and one side of the collector plate, which is far away from the pins, is provided with a wiring hole.

5. The current collecting and extracting structure of a fuel cell according to claim 4, characterized in that: the wiring hole is provided with two.

6. A fuel cell, characterized by: comprising the current collecting and extracting structure according to any one of claims 1 to 5.

7. The fuel cell according to claim 6, characterized in that: the two collector plates are located at the same end of the same side of the stack.