Unlock instant, AI-driven research and patent intelligence for your innovation.

Novel multi-peak and rectangular combined sealing structure of fuel cell

A sealing structure and fuel cell technology, applied in fuel cells, circuits, electrical components, etc., can solve problems such as misalignment of sealing structures, small sealing contact pressure, and large compressive stress of sealing materials

Pending Publication Date: 2021-03-12
上海氢晨新能源科技有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the fuel cell has a unique double-layer sealing structure, it is easy to cause dislocation of the sealing structure when assembly errors are considered, resulting in structural instability and low sealing contact pressure, making it difficult to ensure the sealing performance of the fuel cell
[0004] The invention mainly aims to solve the problems of too large compression stress of the sealing material and too small sealing contact pressure during the use of the fuel cell, so as to achieve the purpose of improving the sealing performance of the fuel cell and increasing the service life of the sealing material

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Novel multi-peak and rectangular combined sealing structure of fuel cell
  • Novel multi-peak and rectangular combined sealing structure of fuel cell
  • Novel multi-peak and rectangular combined sealing structure of fuel cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] In specific embodiment 1, such as figure 1 As shown, a new multi-peak and rectangular combined sealing structure for a fuel cell includes a cathode sealing ring 2 and an anode sealing ring 1; the anode sealing ring 1 adopts a rectangular sealing structure, and the cathode sealing ring 2 adopts a rectangular sealing structure and a multi-peak sealing structure Combine.

[0033] In Example 1, an anode plate 3, a cathode plate 4, a membrane electrode 5 and a membrane electrode frame 6 are included in a complete fuel cell structure, and an anode sealing ring 1 is arranged between the anode plate 3 and the membrane electrode frame 6 , A cathode sealing ring 2 is provided between the cathode plate 4 and the membrane electrode frame 6 . An anode sealing ring 1 and a cathode sealing ring 2 are arranged between the cathode plate 4, the anode plate 3 and the membrane electrode frame 6 to ensure good sealing performance of the membrane electrode 5 and prevent liquids such as wate...

Embodiment 2

[0043] In specific embodiment 2, such as Figure 4 As shown, a new multi-peak and rectangular combined sealing structure includes a cathode sealing ring 2 and an anode sealing ring 1, the cathode sealing ring 2 adopts a rectangular seal, and the anode sealing ring 1 adopts a combination of a rectangular sealing structure and a multi-peak sealing structure.

[0044]In Example 2, an anode plate 3, a cathode plate 4, a membrane electrode 5 and a membrane electrode frame 6 are included in a complete fuel cell structure, and an anode sealing ring 1 is arranged between the anode plate 3 and the membrane electrode frame 6 , A cathode sealing ring 2 is provided between the cathode plate 4 and the membrane electrode frame 6 . An anode sealing ring 1 and a cathode sealing ring 2 are arranged between the cathode plate 4, the anode plate 3 and the membrane electrode frame 6 to ensure the good sealing performance of the membrane electrode 5 and prevent liquids such as water and acid produc...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a novel multi-peak and rectangular combined sealing structure of a fuel cell. The sealing structure comprises a cathode sealing ring and an anode sealing ring, and the anode sealing ring and the cathode sealing ring adopt a sealing structure combining a multi-peak sealing structure and a rectangular sealing structure. The sealing structure has the beneficial effects that theproblems that the sealing material is too large in compressive stress and too small in sealing contact pressure in the using process of the fuel cell are solved, the sealing performance of the fuel cell is improved, and the service life of the sealing material is prolonged.

Description

technical field [0001] The invention relates to a sealing structure of a fuel cell, in particular to a novel multi-peak and rectangular combined sealing structure of the fuel cell. Background technique [0002] Rectangular sealing rings and O-rings are widely used in the sealing field. The cross-section of the rectangular sealing ring has good stability, and it is not easy to be twisted after installation. Because of the large width of the rectangular sealing ring, even in the case of misalignment, there will still be a large contact width. However, under the condition of obtaining the same sealing contact pressure, the large compressive strain of the rectangular sealing ring will lead to excessive internal stress, which will easily lead to the failure of the sealing structure. [0003] The traditional O-ring is self-sealing and has good sealing performance. However, because the fuel cell has a unique double-layer sealing structure, it is easy to cause dislocation of the s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0276
CPCH01M8/0278Y02E60/50
Inventor 梁鹏张书琼
Owner 上海氢晨新能源科技有限公司