CN214625113U - Novel multi-peak and rectangular combined sealing structure of fuel cell - Google Patents
Novel multi-peak and rectangular combined sealing structure of fuel cell Download PDFInfo
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- CN214625113U CN214625113U CN202022966727.9U CN202022966727U CN214625113U CN 214625113 U CN214625113 U CN 214625113U CN 202022966727 U CN202022966727 U CN 202022966727U CN 214625113 U CN214625113 U CN 214625113U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The utility model provides a novel multimodal and rectangle combination formula seal structure of fuel cell. The cathode sealing ring and the anode sealing ring are of a sealing structure combining a multimodal sealing structure and a rectangular sealing structure. Wherein the utility model has the advantages that: the problems that the compression stress of the sealing material is too large and the sealing contact pressure is too small in the use process of the fuel cell are solved, and the sealing performance of the fuel cell is improved and the service life of the sealing material is prolonged.
Description
Technical Field
The utility model relates to a fuel cell's seal structure, in particular to novel multimodal and rectangle combination formula seal structure of fuel cell.
Background
The rectangular sealing ring and the O-shaped sealing ring are used in a large scale in the sealing field. The rectangular sealing ring has good section stability, is not easy to distort after installation, and still has larger contact width even under the condition of dislocation because the width of the rectangular sealing ring is large. However, under the condition that the same sealing contact pressure is required to be obtained, the internal stress is excessive due to the large compressive strain of the rectangular sealing ring, and the failure of the sealing structure is easily caused.
The traditional O-shaped sealing ring has self-sealing property and good sealing performance. However, since the fuel cell has a unique double-layer sealing structure, misalignment of the sealing structure is easily caused in consideration of assembly errors, which causes structural instability and an excessively low sealing contact pressure, and it is difficult to ensure the sealing performance of the fuel cell.
The invention mainly aims to solve the problems of overlarge compressive stress of a sealing material and undersize sealing contact pressure in the use process of the fuel cell, and achieves the purposes of improving the sealing performance of the fuel cell and prolonging the service life of the sealing material.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problem, the utility model discloses a novel multimodal and rectangle combined type seal structure of fuel cell, the technical scheme of the utility model is implemented like this:
a novel multi-peak and rectangular combined sealing structure of a fuel cell comprises a cathode sealing ring and an anode sealing ring; the anode sealing ring adopts a rectangular sealing structure, and the cathode sealing ring adopts the combination of the rectangular sealing structure and a multimodal sealing structure.
Preferably, one side of the cathode sealing ring is a rectangular sealing structure, and the other side of the cathode sealing ring is a multimodal sealing structure.
Preferably, both sides of the anode sealing ring are rectangular sealing structures.
Preferably, the cathode sealing structure comprises two or more multimodal structures.
Preferably, the multimodal structure comprises an O-type structure or a profiled structure.
A novel multi-peak and rectangular combined sealing structure of a fuel cell comprises a cathode sealing ring and an anode sealing ring, wherein the cathode sealing ring is sealed in a rectangular mode, and the anode sealing ring is combined with the multi-peak sealing structure in a rectangular mode
Preferably, one side of the anode sealing ring is a rectangular sealing structure, and the other side of the anode sealing ring is a multimodal sealing structure.
Preferably, both sides of the cathode sealing ring are rectangular sealing structures.
Preferably, the anode sealing structure comprises two or more multimodal sealing structures.
Preferably, the multimodal structure comprises an O-type structure or a profiled structure.
By implementing the technical scheme of the utility model, the technical problems of overlarge compression stress and undersize sealing contact pressure of the fuel cell in the prior art can be solved; implement the technical scheme of the utility model, combine together through rectangle seal structure and O type seal structure, can realize promoting fuel cell sealing performance and improve sealing material life's technological effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only one embodiment of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
FIG. 1 is a schematic view of a cathode sealing ring with a combination of multi-peak and rectangular structures;
FIG. 2 is a schematic view of a combined multi-peak and rectangular seal configuration;
FIG. 3 is a schematic view of a multimodal and rectangular combined seal structure with multimodal anisotropic structure;
FIG. 4 is a schematic view of an anode sealing ring with a combination of multi-peak and rectangular structures;
in the above drawings, the reference numerals denote:
1 anode sealing ring
2 cathode sealing ring
3 anode plate
4 negative plate
5 film electrode
6 membrane electrode frame
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1
In specific example 1, as shown in fig. 1, a novel multimodal and rectangular combined sealing structure for a fuel cell comprises 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 the combination of the rectangular sealing structure and a multimodal sealing structure.
In embodiment 1, an integrated fuel cell structure includes an anode plate 3, a cathode plate 4, a membrane electrode 5, and a membrane electrode frame 6, an anode sealing ring 1 is disposed between the anode plate 3 and the membrane electrode frame 6, and a cathode sealing ring 2 is disposed between the cathode plate 4 and the membrane electrode frame 6. The anode sealing ring 1 and the cathode sealing ring 2 are arranged among the cathode plate 4, the anode plate 3 and the membrane electrode frame 6, so that the good sealing performance of the membrane electrode 5 can be ensured, the anode plate 3 and the cathode plate 4 are prevented from being corroded by water, acid and other liquids generated in the working process of the fuel cell, and the service life of the fuel cell is shortened. The anode sealing ring 1 adopts a rectangular sealing structure, and the cathode sealing ring 2 adopts a combination of a multimodal sealing structure and a rectangular sealing structure. The rectangular sealing structure has good stability, but the rectangular sealing structure can cause the internal stress of the sealing structure to be overlarge, so that the sealing structure fails. Multimodal structures have good sealing properties but are prone to misalignment during installation. The anode sealing ring 1 adopts a rectangular sealing structure to ensure that the anode sealing ring 1, the anode plate 3 and the membrane electrode frame 6 have good contact width and good stability of the cross section, and the cathode sealing ring 2 adopts the combination of a multimodal sealing structure and a rectangular sealing structure, so that the membrane electrode frame 6 is not subjected to large internal stress, and the service life of the fuel cell is further influenced. The installation is simpler and easier, the dislocation is not easy to occur in the middle of the installation process, the installation cost is saved, the sealing performance of the fuel cell is ensured, and the long service life and the durability of the fuel cell are also ensured.
In a preferred embodiment, the cathode sealing ring 2 has a rectangular sealing structure on one side and a multimodal sealing structure on the other side.
In the present embodiment, the side of the cathode sealing ring 2 in contact with the cathode plate 4 is a rectangular sealing structure, and the side of the cathode sealing ring 2 in contact with the membrane electrode frame 6 is a multimodal sealing structure. The rectangular sealing structure is adopted between the cathode sealing ring 2 and the cathode plate 4, so that the cross section has good stability, the multimodal sealing structure is adopted between the cathode sealing ring 2 and the membrane electrode frame 6, the situation that one side of the cathode sealing ring 2 is not easy to misplace is ensured, the plane contact of the other side is also ensured even if the dislocation occurs, and the contact pressure cannot be too large to cause the failure of the sealing structure. The contact pressure is not so low that the sealing performance of the fuel cell is poor. The contact pressure of the cathode sealing ring 2 is in a stable state, so that the fuel cell has good sealing performance and cannot generate huge contact pressure, and the fuel cell is ensured to have good service life.
In a preferred embodiment, the anode sealing ring 1 has a rectangular sealing structure on both sides.
In the present embodiment, rectangular sealing structures are adopted on both sides of the anode sealing ring 1, which are in contact with the anode plate 3 and the membrane electrode frame 6. After the multimodal sealing structure is adopted on the side of the cathode sealing ring 2 contacting the membrane electrode frame 6, if the multimodal sealing structure is still adopted on the side of the anode sealing ring 1 contacting the membrane electrode frame 6, the sealing performance of the whole fuel cell is poor, and the problem of structural instability is easy to occur. The rectangular sealing structure is adopted on the contact side of the anode sealing ring 1 and the membrane electrode frame 6, the multimodal sealing structure is adopted on the contact side of the cathode sealing ring 2 and the membrane electrode frame 6, so that the whole fuel cell has good sealing performance, excessive stress cannot be generated in the fuel cell, and the sealing performance is optimized on the premise of not increasing the compressive stress. Meanwhile, the dislocation of the sealing structure can be avoided in the installation process, and when the cathode sealing ring 2 is dislocated, the anode sealing ring 1 is still in plane contact, so that the good and stable sealing performance of the fuel cell is ensured. The membrane electrode frame 6 is not damaged by the torsional force during the installation process.
In a preferred embodiment, the cathode seal ring 2 comprises two or more multi-peak structures, as shown in fig. 2.
In the present embodiment, the cathode seal ring 2 may have a two-peak structure, or may have a three-peak or multi-peak structure on the side contacting the membrane electrode frame 6. The peak type sealing structure can effectively enhance the sealing performance, and meanwhile, the peak type structure can effectively slow down the compression stress of the rectangular sealing structure. The number of peak structures can be selected to be 2 or more, and good effects are achieved.
In a preferred embodiment, as shown in FIG. 3, the multimodal structure comprises an O-type structure or a profiled structure.
In this embodiment, the multi-peak structure may adopt a different special-shaped structure besides a conventional O-shaped structure, the peak structure may effectively reduce the compressive stress of the rectangular sealing structure and ensure the sealing performance of the fuel cell, and the shape of the peak structure may not substantially affect the above functions, so that the shape of the peak structure may be designed in any shape.
Example 2
In specific embodiment 2, as shown in fig. 4, a novel multi-peak and rectangular combined sealing structure includes a cathode sealing ring 2 and an anode sealing ring 1, where the cathode sealing ring 2 is rectangular sealed, and the anode sealing ring 1 is combined with the multi-peak sealing structure.
In embodiment 2, an integrated fuel cell structure includes an anode plate 3, a cathode plate 4, a membrane electrode 5, and a membrane electrode frame 6, an anode sealing ring 1 is disposed between the anode plate 3 and the membrane electrode frame 6, and a cathode sealing ring 2 is disposed between the cathode plate 4 and the membrane electrode frame 6. The anode sealing ring 1 and the cathode sealing ring 2 are arranged among the cathode plate 4, the anode plate 3 and the membrane electrode frame 6, so that the good sealing performance of the membrane electrode 5 can be ensured, the anode plate 3 and the cathode plate 4 are prevented from being corroded by liquid such as water, acid and the like generated in the working process of the fuel cell, and the service life of the fuel cell is shortened. The cathode sealing ring 2 adopts a rectangular sealing structure, and the anode sealing ring 1 adopts a combination of a multimodal sealing structure and a rectangular sealing structure. The rectangular sealing structure has good stability, but the rectangular sealing structure can cause overlarge internal stress of the sealing structure, so that the sealing structure is easy to fail. Multimodal structures have good sealing properties but are prone to misalignment during installation. The cathode sealing ring 2 adopts a rectangular sealing structure to ensure that the cathode sealing ring 2 has good contact width with the cathode plate 4 and the membrane electrode frame 6, and the cross section has good stability, and the anode sealing ring 2 adopts the combination of a multimodal sealing structure and a rectangular sealing structure, thereby not only ensuring that the membrane electrode frame 6 can not generate large internal stress, but also influencing the service life of the fuel cell. The installation is simpler and easier, the dislocation is not easy to occur in the middle of the installation process, the installation cost is saved, the sealing performance of the fuel cell is ensured, and the long service life and the durability of the fuel cell are also ensured.
In a preferred embodiment, the anode sealing ring 1 has a rectangular sealing structure on one side and a multimodal sealing structure on the other side.
In this embodiment, the side of the anode sealing ring 1 in contact with the anode plate 3 is a rectangular sealing structure, and the side of the anode sealing ring 1 in contact with the membrane electrode frame 6 is a multimodal sealing structure. The rectangular sealing structure is adopted between the anode sealing ring 1 and the anode plate 3, so that the cross section has good stability, the multimodal sealing structure is adopted between the anode sealing ring 1 and the membrane electrode frame 6, the situation that one side of the anode sealing ring 1 is not easy to misplace is ensured, the plane contact of the other side is also ensured even if the dislocation occurs, and the contact pressure cannot be too large to cause the failure of the sealing structure. The contact pressure is not so low that the sealing performance of the fuel cell is poor. The contact pressure of the anode sealing ring 1 is in a stable state, so that the fuel cell has good sealing performance and cannot generate huge contact pressure, and the fuel cell is ensured to have good service life.
In a preferred embodiment, the cathode sealing ring 2 is a rectangular sealing structure on both sides.
In the embodiment, rectangular sealing structures are adopted on two sides of the cathode sealing ring 2, which are in contact with the cathode plate 4 and the membrane electrode frame 6. After the multimodal sealing structure is adopted on the side of the anode sealing ring 1 contacting the membrane electrode frame 6, if the multimodal sealing structure is still adopted on the side of the cathode sealing ring 2 contacting the membrane electrode frame 6, the sealing performance of the whole fuel cell is poor, and the overall structure of the fuel cell is easy to be unstable. The rectangular sealing structure is adopted on the contact side of the cathode sealing ring 2 and the membrane electrode frame 6, the multimodal sealing structure is adopted on the contact side of the anode sealing ring 1 and the membrane electrode frame 6, so that the whole fuel cell has good sealing performance, excessive stress cannot be generated in the fuel cell, and the sealing performance is optimized on the premise of not increasing the compressive stress. Meanwhile, the dislocation of the sealing structure can be avoided in the installation process, and when the anode sealing ring 1 is dislocated, the cathode sealing ring 2 is still in plane contact, so that the good and stable sealing performance of the fuel cell is ensured. The membrane electrode frame 6 is not damaged by the torsional force during the installation process.
In a preferred embodiment, the anode sealing ring 1 comprises two or more multimodal sealing structures.
In the present embodiment, the anode seal ring 1 may have a two-peak structure, or may have a three-peak or multi-peak structure on the side contacting the membrane electrode frame 6. The peak type sealing structure can effectively enhance the sealing performance, and meanwhile, the peak type structure can effectively slow down the compression stress of the rectangular sealing structure. The number of peak structures can be selected to be 2 or more, and good effects are achieved.
In a preferred embodiment, the multimodal structure comprises an O-type structure or a profiled structure.
In this embodiment, the multi-peak structure may adopt a different special-shaped structure besides a conventional O-shaped structure, the peak structure may effectively reduce the compressive stress of the rectangular sealing structure and ensure the sealing performance of the fuel cell, and the shape of the peak structure may not substantially affect the above functions, so that the shape of the peak structure may be designed in any shape.
It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the present invention, and that any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (10)
1. A novel multi-peak and rectangular combined sealing structure of a fuel cell is characterized in that: comprises a cathode sealing ring and an anode sealing ring; the anode sealing ring is of a rectangular sealing structure, and the cathode sealing ring is of a combined type of a rectangular sealing structure and a multimodal sealing structure.
2. The novel multi-peak and rectangular combined seal structure of a fuel cell of claim 1, wherein: one side of the cathode sealing ring is of a rectangular sealing structure, and the other side of the cathode sealing ring is of a multimodal sealing structure.
3. The novel multi-peak and rectangular combined seal structure of a fuel cell of claim 2, wherein: and both sides of the anode sealing ring are rectangular sealing structures.
4. The novel multi-peak and rectangular combined seal structure of a fuel cell of claim 3, wherein: the cathode sealing structure comprises two or more multimodal structures.
5. The novel multi-peak and rectangular combined seal structure of a fuel cell of claim 4, wherein: the multimodal structure adopts an O-type structure.
6. A novel multi-peak and rectangular combined sealing structure of a fuel cell is characterized in that; the cathode sealing ring is of a rectangular sealing structure, and the anode sealing ring is of a combination type of the rectangular sealing structure and a multimodal sealing structure.
7. The novel multi-peak and rectangular combined seal structure of a fuel cell of claim 6, wherein: one side of the anode sealing ring is of a rectangular sealing structure, and the other side of the anode sealing ring is of a multimodal sealing structure.
8. The novel multi-peak and rectangular unitized seal structure of a fuel cell of claim 7, wherein: and both sides of the cathode sealing ring are rectangular sealing structures.
9. The novel multi-peak and rectangular unitized seal structure of a fuel cell of claim 8, wherein: the anode sealing structure comprises two or more multimodal sealing structures.
10. The novel multi-peak and rectangular unitized seal structure of a fuel cell of claim 9, wherein: the multimodal sealing structure adopts an O-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022966727.9U CN214625113U (en) | 2020-12-10 | 2020-12-10 | Novel multi-peak and rectangular combined sealing structure of fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022966727.9U CN214625113U (en) | 2020-12-10 | 2020-12-10 | Novel multi-peak and rectangular combined sealing structure of fuel cell |
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| Publication Number | Publication Date |
|---|---|
| CN214625113U true CN214625113U (en) | 2021-11-05 |
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| CN202022966727.9U Active CN214625113U (en) | 2020-12-10 | 2020-12-10 | Novel multi-peak and rectangular combined sealing structure of fuel cell |
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