Bipolar plate mechanism and fuel cell system

A bipolar plate and polar plate technology, which is applied to fuel cell parts, collectors/separators, etc., can solve the problem of easy detachment of pins and bipolar plates, unstable interference fit between pins and bipolar plates, etc. problem, to achieve the effect of ensuring stability and connection

Active Publication Date: 2021-12-14
深圳深科鹏沃科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the size and material of the pins, the interference fit between the pins and the bipolar plate is not stable. After being mounted on the car, with years of use, the pins and the bipolar plate are easily separated.

Method used

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  • Bipolar plate mechanism and fuel cell system
  • Bipolar plate mechanism and fuel cell system
  • Bipolar plate mechanism and fuel cell system

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Embodiment Construction

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0030] , In the description of the present invention, several means more than one, and multiple means more than two. Greater than, less than, exceeding, etc. are understood as not including the original number, and above, below, within, etc. are understood as including the original number. If the description of the first and second is only for the purpose of distinguishing the technical features, it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical feature...

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Abstract

The invention discloses a bipolar plate mechanism and a fuel cell. The bipolar plate mechanism comprises a polar plate assembly and a limiting piece; the polar plate assembly defines a CVM slot for accommodating a main body part, the CVM slot has a first side part and a second side part which are oppositely arranged, the first side part is provided with a second limiting part, and the second limiting part 5 can be embedded and matched with the first limiting part; the CVM slot is sequentially divided into a positioning area and a reserved area in the preset direction, the preset direction is the direction from the first side part to the second side part, and when the main body part is located in the positioning area, the second limiting part is matched with the first limiting part in an embedded mode; when the main body part moves towards the reserved area in the preset direction, the first limiting part can be separated from the second limiting part; the limiting piece is assembled and connected with the polar plate assembly, and the limiting piece can be connected with one side, facing the reserved area, of the main body part in an abutting manner. By adopting the scheme, the first limiting part and the second limiting part are kept in embedded fit under the action of the limiting piece, so that the CVM pin is stably connected with the CVM slot.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a bipolar plate mechanism and a fuel cell system. Background technique [0002] In related technologies, the fuel cell system consists of multiple bipolar plates and membrane electrodes. In order to inspect the voltage of a single fuel cell, it is necessary to open a CVM slot on the membrane electrode and connect an external inspection instrument for detection. After the fuel cell system is mounted on the vehicle, with years of use, the stack will encounter vibrations caused by various road conditions, so it is very important to prevent the jumping of the CVM pins. However, the CVM slots on the bipolar plates of various membrane electrodes on the market are different, and some of them adopt regular rectangles, circles, and ovals. After the CVM pins are inserted, they are fixed by interference fit. Due to the size and material of the pins, the interference fit between the pins ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0202H01M8/02
CPCH01M8/0202H01M8/02Y02E60/50
Inventor 冯春平曹桂军李鹏程王中红薛文闯文龙刘青斌罗森源
Owner 深圳深科鹏沃科技有限公司
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