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Attachment structure for deformation absorption member and attachment method

A technology of installation structure and installation method, which is applied in the direction of electrical components, collectors/separators, fuel cell parts, etc., and can solve problems such as large dimensional tolerances

Active Publication Date: 2016-03-30
NISSAN MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the separator unit composed of the anode-side separator and the cathode-side separator, the fuel gas (hydrogen gas) of the anode-side separator and the part of the cooling water flow path and the oxidant gas (oxygen-containing oxygen) of the cathode-side separator Air or pure oxygen), the flow path of cooling water is formed with fine concave and convex shapes, and the dimensional tolerance is also large

Method used

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  • Attachment structure for deformation absorption member and attachment method
  • Attachment structure for deformation absorption member and attachment method
  • Attachment structure for deformation absorption member and attachment method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0026] refer to Figure 1 to Figure 8 , the attachment structure and attachment method of the deformation absorbing member 20 of the first embodiment will be described.

[0027] figure 1 It is a perspective view of the fuel cell 1 showing the mounting structure and mounting method of the deformation absorbing member 20 according to the first embodiment. figure 2 It is an exploded perspective view showing a part of the fuel cell 1 disassembled into each structural member. image 3 It is a partial sectional view showing the separator unit 10 , the deformation absorbing member 20 and the membrane electrode assembly 30 of the fuel cell 1 . image 3 along figure 2 The 3-3 lines are shown.

[0028] Figure 4 It is a perspective view showing the state of the deformation absorbing member 20 after being bonded to the separator unit 10 in the fuel cell 1 using a part of the deformation absorbing member 20 . Figure 5 It is a perspective view showing the state of the deformation...

no. 2 Embodiment approach

[0060] refer to Figure 9 and Figure 10 , the attachment structure and attachment method of the deformation absorbing member 40 of the second embodiment will be described.

[0061] Figure 9 It is a perspective view showing the state of the deformation absorbing member 40 after being bonded to the separator unit 10 in the fuel cell using a part of the deformation absorbing member 40 . Figure 10 It is a graph showing the characteristics of the deformation absorbing member 40 of the fuel cell.

[0062] Regarding the mounting structure and mounting method of the deformation absorbing member 40 of the second embodiment, the orientation of the extensions (free end portions 42 b ) of the raised pieces 42 arranged in a grid pattern is the same as that of two adjacent extensions in each row. The structure in which the directions are different from each other is different from the first embodiment described above.

[0063] In the second embodiment, the same reference numerals are...

no. 3 Embodiment approach

[0070] refer to Figure 11 and Figure 12 , the attachment structure and attachment method of the deformation absorbing member 50 of the third embodiment will be described.

[0071] Figure 11 It is a perspective view showing the state of the deformation absorbing member 50 after being bonded to the separator unit 10 in the fuel cell using a part of the deformation absorbing member 50 . Figure 12 It is a graph showing the characteristics of the deformation absorbing member 50 of the fuel cell.

[0072] The attachment structure and attachment method of the deformation absorbing member 50 of the third embodiment are different from those of the second embodiment in that the joint portions 53 of the raised pieces 52 provided in a lattice form are formed in a zigzag shape.

[0073] In the third embodiment, the same reference numerals are used for the same configurations as those in the above-mentioned first or second embodiment, and the above description is omitted.

[0074] ...

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Abstract

The invention provides an attachment structure for a deformation absorption member that makes it possible to prevent a base end from rising upward while preventing excessive plastic deformation of the base end even when a load is applied to a raised piece of the deformation absorption member. The attachment structure for a deformation absorption member (20) is arranged for use between an anode-side separator (11) and a cathode-side separator (12). The deformation absorption member is provided with raised pieces (22) and a joining section (23). The raised pieces are provided in a grid pattern and rise from one surface (21a) of a substrate (21), and extended sections that extend from the base ends of the raised pieces are brought into contact with the cathode-side separator. The joining section is formed so as to be partially joined to the anode-side separator between the base end of one raised piece (22M) and the base end of another raised piece (22N) that is adjacent to the one raised piece (22M) in a direction (Z) that intersects a direction (Y) that follows the one raised piece from the base end to the extended section side thereof.

Description

technical field [0001] The present invention relates to an installation structure and an installation method of a deformation absorbing member. Background technique [0002] Conventionally, a fuel cell is constructed by alternately stacking a plurality of separators and a plurality of membrane electrode assemblies. Since a fuel cell obtains a high output corresponding to the number of stacks of separators and membrane electrode assemblies, it is desirable to increase the number of stacks. By bringing the multi-layered separator and the membrane electrode assembly into sufficiently close contact with each other, the electrical resistance can be reduced and desired battery performance can be achieved. [0003] However, in the separator unit composed of the anode-side separator and the cathode-side separator, the fuel gas (hydrogen gas) of the anode-side separator and the part of the cooling water flow path and the oxidant gas (oxygen-containing oxygen) of the cathode-side sep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/02H01M8/0202H01M8/24H01M8/10
CPCH01M8/0202H01M8/248H01M8/006H01M8/0254H01M8/0273H01M2008/1095Y02E60/50H01M8/0247H01M8/0206H01M8/0267H01M8/1007H01M8/1039H01M8/242H01M8/2457H01M8/0271H01M8/0297
Inventor 福山阳介盐见岳史寺田雄亮田岛典拓
Owner NISSAN MOTOR CO LTD
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