CN213278136U - Hydrogen sealing ring of bipolar plate of hydrogen power battery - Google Patents
Hydrogen sealing ring of bipolar plate of hydrogen power battery Download PDFInfo
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- CN213278136U CN213278136U CN202022221888.5U CN202022221888U CN213278136U CN 213278136 U CN213278136 U CN 213278136U CN 202022221888 U CN202022221888 U CN 202022221888U CN 213278136 U CN213278136 U CN 213278136U
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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 relates to a hydrogen power battery bipolar plate hydrogen sealing washer, circumference is provided with first seal lip and second seal lip on annular base member, and first seal lip and second seal lip are parallel and the interval sets up, the utility model discloses a sealed form of two lips can guarantee to satisfy the sealed demand of hydrogen, and every seal lip all satisfies contact pressure and contact width, and reaches the designing requirement, adopts the sealed leakage that also can avoid causing because of assembling not in place of two lips, greatly increased the fault-tolerant rate of whole galvanic pile in the installation, increased our security in follow-up daily use. First annular groove and second annular groove have been seted up to circumference on the annular base member, and the setting of first annular groove and second annular groove can be at the in-process of annular base member compression, and the outside of annular base member is to first annular groove deformation, and the inboard second annular groove deformation of annular base member can avoid the sealing washer to have the local stress that space deformation caused too big in compression process.
Description
Technical Field
The utility model belongs to the technical field of the sealing washer technique and specifically relates to a hydrogen power battery bipolar plate hydrogen sealing washer is related to.
Background
The hydrogen energy fuel cell research for automobile application in China begins at the end stage of 'nine five', and is developed for more than twenty years, and great progress is made in the aspects of technical research and industrial development. In the technical aspect, a series of research results in the aspects of fuel cell automobile power assemblies, fuel cell engine systems, galvanic piles, corresponding key parts, core materials and the like are produced through scientific and technological research and development projects supported by the department of science and technology, although the overall technical level has a certain difference with the international advanced level, a good long-term development foundation is laid, and corresponding research and development teams and professionals are cultivated; in the industrial aspect, a large amount of research and development work is put into the fuel cell automobile aspect by the whole automobile enterprises represented by the above automobile, a series of fuel cell passenger vehicles and commercial vehicle models are developed at present, and the development and starting of the fuel cell automobile industry chain in China are pulled; in commercialization, the industry as a whole is still exploring economically viable business models due to infrastructure and cost issues.
In the whole power system, the sealing of hydrogen is crucial, the consequences of hydrogen leakage are not imaginable, and hydrogen is a low molecular weight gas, and the requirements on sealing rings are very high. Meanwhile, due to the limitation of the space and the installation force of the galvanic pile, if a common O-shaped sealing ring is used, a large installation space is needed firstly, and the installation counterforce is large, so that a large-tonnage press is needed for installation.
And the space of the galvanic pile bipolar plate is limited, the depth of the groove can not be too large, the maximum depth is only 0.6mm, and only an O-shaped ring with smaller section diameter, such as the O-shaped ring with the section diameter of phi 0.8, can be used, but the manufacture of a sealing ring with the section diameter smaller than 1 is very difficult according to the current domestic production level. The installation force of the whole pile cannot exceed the tonnage of a press under the influence of assembly requirements and equipment tonnage, and needs to be kept within a certain range, so that a sealing ring which is suitable for a tiny installation space and has very low installation counterforce needs to be designed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to overcome the problem that the traditional sealing ring cannot be used in a stack bipolar plate, the hydrogen sealing ring for the hydrogen power battery bipolar plate is provided.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a hydrogen power battery bipolar plate hydrogen sealing washer, includes ring type seal, ring type seal includes annular substrate, circumference is provided with first seal lip and second seal lip on the annular substrate, first seal lip and second seal lip are parallel and the interval sets up, first annular groove and second annular groove have been seted up to circumference on the annular substrate, first annular groove is located the outside of first seal lip, the second annular groove is located the inboard of second seal lip.
The utility model discloses a hydrogen power battery bipolar plate hydrogen sealing washer, circumference is provided with first seal lip and second seal lip on annular base member, and first seal lip and second seal lip are parallel and the interval sets up, the utility model discloses a sealed form of two lips can guarantee to satisfy the sealed demand of hydrogen, and every seal lip all satisfies contact pressure and contact width, and reaches the designing requirement, adopts the sealed leakage that also can avoid causing because of assembling out-of-position of two lips, greatly increased the fault-tolerant rate of whole galvanic pile in the installation, has increased the security in follow-up our daily use. According to the double-lip sealing structure, the counter force of the unit length is only 1.5N, and the installation force of the whole galvanic pile can meet the requirement of the tonnage of a press; first annular groove and second annular groove have been seted up to circumference on the annular base member, first annular groove is located the outside of first seal lip, the second annular groove is located the inboard of second seal lip, the setting of first annular groove and second annular groove, can be at the in-process of annular base member compression, the outside of annular base member is to first annular groove deformation, the inboard second annular groove deformation of annular base member, can avoid the sealing washer to have the local stress that space deformation caused too big in compression process, avoid the sealing washer to be crowded bad and become invalid.
Further, the cross-sectional shapes of the first sealing lip and the second sealing lip are both trapezoidal.
Preferably, the upper surfaces of the first sealing lip and the second sealing lip are both semi-circular arc surfaces.
Preferably, the bottom surfaces of the first annular groove and the second annular groove are both arc surfaces.
Further, the annular sealing ring is rectangular.
In order to adapt to different shells, the inner sides of the two ends of the annular sealing ring are fixedly provided with first sealing strips, the first sealing strips are parallel to the end part of the annular sealing ring and are arranged at intervals, and the cross section of each first sealing strip is identical to that of the annular sealing ring.
In order to adapt to different shells, a second sealing strip is fixedly mounted between the first sealing strip and the end part of the annular sealing ring, the second sealing strip is vertically connected with the end part of the first sealing strip and the end part of the annular sealing ring, and the cross section of the second sealing strip is completely the same as that of the annular sealing ring.
Furthermore, the second sealing strips are provided with two strips, and the two strips are arranged at intervals.
The beneficial effects of the utility model are that the utility model discloses a hydrogen power battery bipolar plate hydrogen sealing washer, circumference are provided with first seal lip and second seal lip on annular base member, and first seal lip and second seal lip are parallel and the interval sets up, the utility model discloses a sealed form of two lips can guarantee to satisfy the sealed demand of hydrogen, and every seal lip all satisfies contact pressure and contact width, and reaches the designing requirement, adopts sealed also can avoid because of assembling not the leakage that leads to the fact in place of two lips, greatly increased the fault-tolerant rate of whole galvanic pile in the installation, increased our security in follow-up daily use. According to the double-lip sealing structure, the counter force of the unit length is only 1.5N, and the installation force of the whole galvanic pile can meet the requirement of the tonnage of a press; first annular groove and second annular groove have been seted up to circumference on the annular base member, first annular groove is located the outside of first seal lip, the second annular groove is located the inboard of second seal lip, the setting of first annular groove and second annular groove, can be at the in-process of annular base member compression, the outside of annular base member is to first annular groove deformation, the inboard second annular groove deformation of annular base member, can avoid the sealing washer to have the local stress that space deformation caused too big in compression process, avoid the sealing washer to be crowded bad and become invalid.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a two-dimensional schematic diagram of embodiment 1 of the present invention;
fig. 2 is an enlarged view of a ring seal ring in embodiment 1 of the present invention;
fig. 3 is a two-dimensional schematic diagram of embodiment 2 of the present invention;
fig. 4 is a two-dimensional schematic diagram of embodiment 3 of the present invention;
fig. 5 is a two-dimensional cross-sectional view of the middle o-ring seal, the first seal strip and the second seal strip of the present invention;
fig. 6 is a two-dimensional cross-sectional view of the present invention in a use state.
In the figure: 1. the sealing ring comprises an annular sealing ring, 2, an annular base body, 3, a first sealing lip, 4, a second sealing lip, 5, a first annular groove, 6, a second annular groove, 7, a first sealing strip and 8, a second sealing strip.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
Example 1:
as shown in fig. 1 and 2, the hydrogen sealing ring for the bipolar plate of the hydrogen power battery comprises an annular sealing ring 1, wherein the annular sealing ring 1 comprises an annular base body 2, a first sealing lip 3 and a second sealing lip 4 are circumferentially arranged on the annular base body 2, as shown in fig. 5, the first sealing lip 3 and the second sealing lip 4 are arranged in parallel and at intervals, a first annular groove 5 and a second annular groove 6 are circumferentially arranged on the annular base body 2, the first annular groove 5 is positioned on the outer side of the first sealing lip 3, and the second annular groove 6 is positioned on the inner side of the second sealing lip 4. The first seal lip 3 and the second seal lip 4 are each trapezoidal in cross-sectional shape. The upper surfaces of the first sealing lip 3 and the second sealing lip 4 are both semi-arc surfaces, and the bottom surfaces of the first annular groove 5 and the second annular groove 6 are both arc surfaces. The ring-shaped sealing ring 1 is rectangular.
The utility model discloses a hydrogen power battery bipolar plate hydrogen sealing washer, circumference is provided with first seal lip 3 and second seal lip 4 on annular base member 2, and first seal lip 3 and second seal lip 4 are parallel and the interval sets up, the utility model discloses a sealed form of two lips can guarantee to satisfy the sealed demand of hydrogen, and every seal lip all satisfies contact pressure and contact width, and reaches the designing requirement, adopts sealed also can avoid because of assembling not revealing that the position led to the fact of arriving, greatly increased the fault-tolerant rate of whole pile in the installation, increased our security in follow-up daily use. According to the double-lip sealing structure, the counter force of the unit length is only 1.5N, and the installation force of the whole galvanic pile can meet the requirement of the tonnage of a press; first annular groove 5 and second annular groove 6 have been seted up to circumference on annular base member 2, first annular groove 5 is located the outside of first seal lip 3, second annular groove 6 is located the inboard of second seal lip 4, the setting of first annular groove 5 and second annular groove 6, can be in the in-process of annular base member 2 compression, as shown in fig. 6, the outside of annular base member 2 is to first annular groove 5 deformation, the inboard of annular base member 2 is to second annular groove 6 deformation, can avoid the sealing washer not have the local stress that space deformation caused too big in compression process, avoid the sealing washer to be crowded bad and inefficacy.
Example 2:
in order to accommodate different housings, embodiment 2 as shown in fig. 3 differs from embodiment 1 only in that: the inner sides of the two ends of the annular sealing ring 1 are fixedly provided with first sealing strips 7, the first sealing strips 7 are parallel to the end part of the annular sealing ring 1 and are arranged at intervals, and the cross section of each first sealing strip 7 is completely the same as that of the annular sealing ring 1, as shown in fig. 5.
Example 3:
in order to accommodate different housings, embodiment 3 as shown in fig. 4 differs from embodiment 2 only in that: a second sealing strip 8 is fixedly installed between the first sealing strip 7 and the end part of the annular sealing ring 1, the second sealing strip 8 is vertically connected with the first sealing strip 7 and the end part of the annular sealing ring 1, and the cross section of the second sealing strip 8 is completely the same as that of the annular sealing ring 1, as shown in fig. 5. The second sealing strip 8 has two, and the two second sealing strips 8 are arranged at intervals.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. The utility model provides a hydrogen power battery bipolar plate hydrogen sealing washer which characterized in that: including ring seal (1), ring seal (1) includes annular base member (2), circumference is provided with first seal lip (3) and second seal lip (4) on annular base member (2), first seal lip (3) and second seal lip (4) are parallel and the interval sets up, first annular groove (5) and second annular groove (6) have been seted up to circumference on annular base member (2), first annular groove (5) are located the outside of first seal lip (3), second annular groove (6) are located the inboard of second seal lip (4).
2. The hydrogen gasket of claim 1, wherein: the cross section shapes of the first sealing lip (3) and the second sealing lip (4) are both trapezoidal.
3. The hydrogen gasket of claim 2, wherein: the upper surfaces of the first sealing lip (3) and the second sealing lip (4) are both semi-circular arc surfaces.
4. The hydrogen gasket of claim 3, wherein: the bottom surfaces of the first annular groove (5) and the second annular groove (6) are both arc surfaces.
5. The hydrogen gasket of claim 4, wherein: the annular sealing ring (1) is rectangular.
6. The hydrogen gasket of claim 5, wherein: the inner sides of the two ends of the annular sealing ring (1) are fixedly provided with first sealing strips (7), the first sealing strips (7) are parallel to the end portion of the annular sealing ring (1) and are arranged at intervals, and the cross section of each first sealing strip (7) is identical to that of the annular sealing ring (1).
7. The hydrogen gasket of claim 6, wherein: fixed mounting has second sealing strip (8) between first sealing strip (7) and ring packing (1) tip, first sealing strip (7) and ring packing (1) tip are connected perpendicularly to second sealing strip (8), the cross section of second sealing strip (8) is the same with the cross section of ring packing (1) completely.
8. The hydrogen gasket of claim 7, wherein: the number of the second sealing strips (8) is two, and the two second sealing strips (8) are arranged at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022221888.5U CN213278136U (en) | 2020-09-30 | 2020-09-30 | Hydrogen sealing ring of bipolar plate of hydrogen power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022221888.5U CN213278136U (en) | 2020-09-30 | 2020-09-30 | Hydrogen sealing ring of bipolar plate of hydrogen power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213278136U true CN213278136U (en) | 2021-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022221888.5U Active CN213278136U (en) | 2020-09-30 | 2020-09-30 | Hydrogen sealing ring of bipolar plate of hydrogen power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213278136U (en) |
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2020
- 2020-09-30 CN CN202022221888.5U patent/CN213278136U/en active Active
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