CN217086631U - Double-channel sealing structure of bipolar plate of fuel cell - Google Patents
Double-channel sealing structure of bipolar plate of fuel cell Download PDFInfo
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- CN217086631U CN217086631U CN202221008358.5U CN202221008358U CN217086631U CN 217086631 U CN217086631 U CN 217086631U CN 202221008358 U CN202221008358 U CN 202221008358U CN 217086631 U CN217086631 U CN 217086631U
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Abstract
The utility model discloses a fuel cell bipolar plate double-channel sealing structure, a sealing ring is arranged between a bipolar plate and a bipolar plate stacked adjacently, and sealing grooves matched with the sealing ring are arranged at the inlet and outlet positions of bipolar plate gas and cooling water for restricting the sealing ring; the sealing groove comprises an edge restraining ring arranged on the periphery of the gas and cooling water main pipe, an outer edge restraining ring arranged on the outer enveloping edge of the bipolar plate and a reinforcing rib arranged between the edge restraining ring and the outer edge restraining ring; the sealing ring is restrained between the edge restraining ring and the outer edge restraining ring after being installed, and the sealing ring is provided with a reinforcing rib matching groove for matching with the reinforcing rib when the two bipolar plates extrude the sealing ring. The utility model discloses a fuel cell's bipolar plate border restraint ring, outer border restraint ring and corresponding strengthening rib structural design have realized the sealed scheme of twice after optimizing, very big improvement fuel cell's operating efficiency and stability.
Description
Technical Field
The utility model belongs to the technical field of fuel cell, concretely relates to fuel cell bipolar plate double sealing structure.
Background
At present, with the wide application of electric vehicles, various battery technologies are widely developed, and the battery technologies are innovated, the fuel cell can be widely applied because the fuel cell can directly convert chemical energy into electric energy, but after the fuel cell is used in a large quantity, the sealing design of a bipolar plate is an important ring in the design, production and assembly processes of the fuel cell, and the common sealing design scheme has no good sealing performance, and can not balance the distribution of force between a sealing rubber ring and a Membrane Electrode (MEA), so that the gas diffusion layer of the Membrane Electrode (MEA) has the problem of local indentation, and the Membrane Electrode (MEA) can be damaged in serious cases, and the reliability of a stack is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art, a fuel cell bipolar plate double sealing structure is provided.
In order to realize the technical purpose, the utility model discloses the technical scheme who takes does:
a fuel cell bipolar plate double-channel sealing structure is characterized in that a sealing ring is arranged between a bipolar plate and an adjacent bipolar plate stacked on the bipolar plate, and sealing grooves matched with the sealing ring are arranged at gas and cooling water inlet and outlet positions of the bipolar plate and used for restraining the sealing ring;
the sealing groove comprises an edge restraining ring arranged on the periphery of the gas and cooling water main pipe, an outer edge restraining ring arranged on the outer enveloping edge of the bipolar plate and a reinforcing rib arranged between the edge restraining ring and the outer edge restraining ring;
the sealing ring is restrained between the edge restraining ring and the outer edge restraining ring after being installed, and the sealing ring is provided with a reinforcing rib matching groove which is used for matching with the reinforcing rib when the two bipolar plates extrude the sealing ring.
Preferably, the reinforcing ribs are fork-shaped and surround each header pipe.
Preferably, the reinforcing ribs are uniform in width, and holes are formed in the positions, surrounded by the two header pipes, of the connecting positions, so that the reinforcing ribs are uniform in width.
The utility model discloses following beneficial effect has:
adopt the utility model discloses a behind fuel cell bipolar plate double-channel seal structure, through fuel cell's bipolar plate border restraint ring, outer along restraint ring and corresponding strengthening rib structural design, the double-channel sealing scheme after having realized optimizing, very big improvement the uniformity problem that fuel cell piles up, this scheme also is applicable to the assembly of high-power pile more simultaneously, the gas tightness of pile has been guaranteed under the multiplex condition, very big improvement fuel cell's operating efficiency and stability.
Drawings
Fig. 1 is a schematic perspective view of a dual-channel sealing structure of a bipolar plate of a fuel cell according to the present invention.
Fig. 2 is a front view of the dual-sealing structure of a bipolar plate of a fuel cell according to the present invention (hatching indicates the region attached to the sealing ring).
In the figure: 1. an outer edge confinement ring; 2. an edge confinement ring; 3. and (5) reinforcing ribs.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Referring to fig. 1 and 2, a fuel cell bipolar plate double-channel sealing structure is provided, wherein a sealing ring is arranged between the bipolar plate and the bipolar plate stacked adjacent to the bipolar plate, and sealing grooves matched with the sealing ring are arranged at the gas and cooling water inlet and outlet positions of the bipolar plate and used for restraining the sealing ring;
the sealing groove comprises an edge restraining ring 2 arranged on the periphery of the gas and cooling water main pipe, an outer edge restraining ring 1 arranged on the outer envelope edge of the bipolar plate and a reinforcing rib 3 arranged between the edge restraining ring and the outer edge restraining ring;
the sealing ring is restrained between the edge restraining ring 2 and the outer edge restraining ring 1 after being installed, and the sealing ring is provided with a reinforcing rib 3 matching groove which is used for matching with the reinforcing rib 3 when the two bipolar plates extrude the sealing ring.
In specific implementation, the reinforcing ribs 3 are in a crotch shape and surround each header pipe.
During concrete implementation, 3 width of strengthening rib are even, surround the hookup location at two house steward and establish the hole, and the 3 width of guarantee strengthening rib are even.
During specific implementation, the sealing rings on the two sides of the reinforcing rib 3 are the same in width, and the sealing rings are guaranteed to be stressed uniformly.
During assembly, the sealing ring is placed between the two bipolar plates, the reinforcing ribs 3 on the sealing ring are matched with the grooves and the reinforcing ribs 3 on the bipolar plates to be constrained between the edge constraining ring 2 and the outer edge constraining ring 1, and bipolar plate assembly is realized.
The utility model discloses a fuel cell bipolar plate double-channel seal structure, through fuel cell's bipolar plate border restraint ring, outer along restraint ring and corresponding strengthening rib structural design, the double-channel sealing scheme after having realized optimizing, very big improvement the uniformity problem that fuel cell packed, this scheme also is applicable to the assembly of high-power pile more simultaneously, the gas tightness of pile has been guaranteed under the multiplex condition, very big improvement fuel cell's operating efficiency and stability.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (3)
1. A kind of fuel cell double polar plate double-channel seal structure, characterized by that: a sealing ring is arranged between the bipolar plate and the bipolar plate stacked adjacently, and sealing grooves matched with the sealing ring are arranged at the gas inlet and the cooling water outlet of the bipolar plate and used for restraining the sealing ring;
the sealing groove comprises an edge restraining ring arranged on the periphery of the gas and cooling water main pipe, an outer edge restraining ring arranged on the outer enveloping edge of the bipolar plate and a reinforcing rib arranged between the edge restraining ring and the outer edge restraining ring;
the sealing ring is restrained between the edge restraining ring and the outer edge restraining ring after being installed, and the sealing ring is provided with a reinforcing rib matching groove which is used for matching with the reinforcing rib when the two bipolar plates extrude the sealing ring.
2. A fuel cell bipolar plate dual seal structure according to claim 1, wherein: the reinforcing ribs are in a crotch shape and surround each header pipe.
3. A fuel cell bipolar plate dual seal structure according to claim 1, wherein: the strengthening rib width is even, surrounds the hookup location at two house steward and establishes the hole, and the guarantee strengthening rib width is even.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221008358.5U CN217086631U (en) | 2022-04-28 | 2022-04-28 | Double-channel sealing structure of bipolar plate of fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221008358.5U CN217086631U (en) | 2022-04-28 | 2022-04-28 | Double-channel sealing structure of bipolar plate of fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217086631U true CN217086631U (en) | 2022-07-29 |
Family
ID=82503012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221008358.5U Active CN217086631U (en) | 2022-04-28 | 2022-04-28 | Double-channel sealing structure of bipolar plate of fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217086631U (en) |
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2022
- 2022-04-28 CN CN202221008358.5U patent/CN217086631U/en active Active
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