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Integrated rapidly-assembled fuel cell sealing structure

A fuel cell and sealing structure technology, applied to fuel cells, circuits, electrical components, etc., can solve the problems of low installation efficiency, short circuit risk, labor and material consumption, etc., to avoid difficult assembly, eliminate short circuit risks, and avoid direct contact. Effect

Inactive Publication Date: 2020-12-04
DONGFENG MOTOR CORP HUBEI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it only integrates the seal of the bipolar plate, and does not consider the installation of the membrane electrode, nor does it consider the rapid positioning of the membrane electrode, and the installation efficiency is low
After research, it is found that the sealing structure needs sealant to complete the sealing, which consumes manpower and material resources during installation, and cannot realize automatic installation; moreover, there is a possibility of direct contact between the cathode plate and the anode plate of this structure, and there is a risk of short circuit

Method used

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  • Integrated rapidly-assembled fuel cell sealing structure

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0033] see Figure 1-Figure 5 , an integrated rapid assembly fuel cell sealing structure, which includes an anode plate 1, a cathode plate 2, and an integrated sealing member. The anode plate 1 is provided with a first sealing groove 5 around; the cathode plate 2 is provided with a second sealing groove 6 and positioning holes 7, and the anode plate 1 and the cathode plate 2 are also provided with 4-8 screw holes for Fastening, in order to avoid misunderstanding, this type of screw hole is not drawn. The integrated seal includes a membrane electrode 3 with a frame and a seal 4; the membrane el...

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Abstract

The invention discloses an integrated rapidly-assembled fuel cell sealing structure. The integrated rapidly-assembled fuel cell sealing structure comprises an anode plate, a cathode plate and an integrated sealing piece, a first sealing groove is formed in the anode plate; a second sealing groove and a positioning hole are formed in the cathode plate; the integrated sealing piece comprises a membrane electrode with a frame and a sealing element; the sealing element wraps the edge of the membrane electrode and can be fixed in the sealing element without falling off; a first sealing boss corresponding to the first sealing groove is arranged on the upper surface of the sealing piece; and a second sealing boss corresponding to the second sealing groove and a positioning pin matched with the positioning hole are arranged on the lower surface of the sealing piece. The structure is simple in structure and convenient to install; and quick positioning can be achieved, and operation time is shortened.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to an integrated rapid assembly fuel cell sealing structure. Background technique [0002] Gas sealing is one of the core parts of the fuel cell stack. Poor sealing will lead to hydrogen leakage, reduce the utilization rate of hydrogen, affect the efficiency of the fuel cell, and in severe cases will cause the battery to fail to work and affect the battery life. There is also a risk of explosion from hydrogen leakage in enclosed spaces while the vehicle is in motion. [0003] Traditional fuel cell seals are composed of bipolar plate (BPP) side seals and membrane electrode (MEA) side seals, which are sealed by pressing the seals. The traditional fuel cell seal structure is relatively complicated, and there are many seals, which generally require manual work. Installation and production efficiency are low, which is not conducive to automated production. At the same ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0276H01M8/028H01M8/0273
CPCH01M8/0273H01M8/0276H01M8/028Y02E60/50
Inventor 刘煜恒覃博文
Owner DONGFENG MOTOR CORP HUBEI
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