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Seal structure of fuel cell

A sealing structure and fuel cell technology, which is applied to fuel cells, fuel cell components, structural parts, etc., can solve the problems of gas leakage, poor sealing effect of sealing structures, complex structures, etc., and achieve easy implementation, improve sealing effect, simple structure

Inactive Publication Date: 2006-12-20
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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Problems solved by technology

[0016] However, the sealing effect of the above-mentioned sealing structure is relatively poor, for example, when the surface of the gasket 12 and the deflector 13 are not fully matched, the gas may still leak from the gap between the two
In addition, the above-mentioned sealing structure needs two gaskets, so that the number of components is large and the structure is complicated.

Method used

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  • Seal structure of fuel cell
  • Seal structure of fuel cell
  • Seal structure of fuel cell

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Embodiment Construction

[0031] The content of the technical solution of the present invention will be described in detail below in conjunction with the drawings and specific embodiments.

[0032] see figure 2 and image 3 The sealing structure 20 of the fuel cell according to the first embodiment of the present invention includes: a membrane electrode group 22 sandwiched by an upper deflector 26 and a lower deflector 24 . Among them, the membrane electrode group 22 is one of the important core components of the fuel cell, where electrochemical reactions occur to generate electrical energy. According to different functional requirements, the membrane electrode group can have different structures. Generally speaking, the membrane electrode group 22 includes a proton exchange membrane and cathode electrodes and anode electrodes on both sides.

[0033] The upper guide plate 26 and the lower guide plate 24 have one or more guide grooves 243 on the inner surface facing the membrane electrode group 22, s...

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Abstract

The invention relates to a sealing structure of fuel battery, which comprises: the first and second diversion plates; one film electrode group between the first and second diversion layers, wherein the surface of at least one diversion plate is arranged with groove matched with one sealing gasket; another diversion plate has relative projection or another groove matched with relative gasket; when the first and second diversion plates clamp said film electrode, to use the reaction between gasket and groove to form seal. The invention can improve the seal effect, with simple structure, easy alignment and installment.

Description

【Technical field】 [0001] The invention relates to a fuel cell, in particular to a sealing structure for a proton exchange membrane fuel cell. 【Background technique】 [0002] A fuel cell is an electrochemical power generation device that converts fuel and oxidant into electrical energy and produces reaction products. Compared with other battery systems such as alkaline batteries and lithium batteries, fuel cells have the advantages of high energy conversion efficiency, low environmental pollution, wide application, no noise and continuous operation. They are widely used in military, national defense and civilian power, automobiles, communications and other fields. [0003] Fuel cells can generally be divided into alkaline fuel cells, solid oxide fuel cells, and proton exchange membrane fuel cells. Among them, the proton exchange membrane fuel cell has developed rapidly in recent years and has received more and more attention. Usually, a single proton exchange membrane fuel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/08H01M8/02H01M8/0271H01M8/0276
CPCY02E60/50
Inventor 黄全德
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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