CN213546364U - Collector plate of fuel cell stack - Google Patents
Collector plate of fuel cell stack Download PDFInfo
- Publication number
- CN213546364U CN213546364U CN202022032270.4U CN202022032270U CN213546364U CN 213546364 U CN213546364 U CN 213546364U CN 202022032270 U CN202022032270 U CN 202022032270U CN 213546364 U CN213546364 U CN 213546364U
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- China
- Prior art keywords
- connecting part
- current collecting
- collector
- fuel cell
- cell stack
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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 fuel cell stack collector plate, which comprises a collector plate body and a connecting part; the connecting part comprises a first connecting part, a second connecting part and a third connecting part; one end of the first connecting part is connected with one side of the collector body through a bendable first bending part; the other end of the first connecting part is connected with one end of the second connecting part through a second bending part which can be bent; the other end of the second connecting part is connected with one end of the third connecting part through a bendable third bending part; the third connecting portion is provided with at least one connecting hole. The utility model discloses an improve the mass flow mode of the structure of current collector in order to change the current collector to can increase the flow area of current collector under the prerequisite that does not increase the outside encapsulation volume of pile.
Description
Technical Field
The utility model belongs to the technical field of the fuel cell technique and specifically relates to a fuel cell electric pile collector plate is related to.
Background
Collector plates are one of the important components of fuel cells. The current collecting plates conduct current through connecting members connected to the stack end plates. The inventor finds in research that the current collecting plate adopts a side connecting part to collect current, and the current collecting mode is limited by the external package of the pile, so that the current collecting area cannot be large. If the flow area of the collector plate needs to be increased, the thickness of the collector plate can only be increased, so that the production cost of the collector plate is greatly increased, and the increase of the thickness of the collector plate can also lead to the increase of the external packaging volume of the pile, so that the volume specific power density is indirectly reduced.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a fuel cell pile current collector, the structure through improving the current collector is with the mass flow mode that changes the current collector to can increase the flow area of current collector under the prerequisite that does not increase the outside encapsulation volume of pile.
In order to solve the above technical problem, an embodiment of the present invention provides a collector plate for a fuel cell stack, including a collector plate body and a connecting member; the connecting part comprises a first connecting part, a second connecting part and a third connecting part;
one end of the first connecting part is connected with one side of the collector body through a bendable first bending part; the other end of the first connecting part is connected with one end of the second connecting part through a second bending part which can be bent; the other end of the second connecting part is connected with one end of the third connecting part through a bendable third bending part; the third connecting portion is provided with at least one connecting hole.
In one embodiment, the plane of the first connecting portion is parallel to the plane of the collector body.
In one embodiment, the plane of the second connecting portion is perpendicular to the plane of the collector plate body.
In one embodiment, the collector plate body has a rectangular plate-shaped structure.
In one embodiment, the thickness of the collector plate body, the first connecting portion, the second connecting portion, and the third connecting portion is the same.
In one embodiment, the connection hole is a screw hole.
In one embodiment, the number of the screw holes is two, and the distance between the two screw holes and the current collecting plate body is the same.
Compared with the prior art, the utility model discloses following beneficial effect has:
the embodiment of the utility model provides a fuel cell stack collector plate, which comprises a collector plate body and a connecting part; the connecting part comprises a first connecting part, a second connecting part and a third connecting part; one end of the first connecting part is connected with one side of the collector body through a bendable first bending part; the other end of the first connecting part is connected with one end of the second connecting part through a second bending part which can be bent; the other end of the second connecting part is connected with one end of the third connecting part through a bendable third bending part; the third connecting portion is provided with at least one connecting hole. The utility model discloses an improve the mass flow mode of the structure of current collector in order to change the current collector to can increase the flow area of current collector under the prerequisite that does not increase the outside encapsulation volume of pile.
Drawings
Fig. 1 is a schematic structural view of a bent collector plate of a fuel cell stack according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a bent collector plate of a fuel cell stack according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a current collecting plate of a prior art stack provided by the present invention;
fig. 4 is another schematic view of a prior art stack collector provided by the present invention;
wherein, 1, a current collecting plate; 11. a collector plate body; 12. a first connection portion; 13. a second connecting portion; 14. a third connecting portion; 15. and connecting the holes.
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.
Referring to fig. 1-2, an embodiment of the present invention provides a collector plate for a fuel cell stack, including a collector plate body 11 and a connecting member; the connecting part comprises a first connecting part 12, a second connecting part 13 and a third connecting part 14;
one end of the first connecting portion 12 is connected to one side of the collector body 11 through a bendable first bending portion; the other end of the first connecting part 12 is connected with one end of the second connecting part 13 through a second bending part which can be bent; the other end of the second connecting part 13 is connected with one end of the third connecting part 14 through a bendable third bending part; the third connecting portion 14 is provided with at least one connecting hole 15.
In one embodiment, the current collecting plate 1 is configured as: the plane of the first connecting part 12 is parallel to the plane of the collector body 11; the plane of the second connecting part 13 is perpendicular to the plane of the collector plate body 11; the collector plate body 11 has a rectangular plate-like structure. Therefore, the structure of the collector plate 1 is more regular and stable, and the reduction of the external packaging volume of the pile is facilitated.
It is understood that the connecting member and the collecting plate body 11 may be on the same plane before bending the three connecting portions of the connecting member, so the collecting plate 1 may be cut from the same plate at the time of production, and thus, the thickness of the collecting plate body 11, the first connecting portion 12, the second connecting portion 13, and the third connecting portion 14 is the same.
In one embodiment, the attachment holes 15 are screw holes; the number of the screw holes is two, and the distance between the two screw holes and the collector plate body 11 is the same. The third connecting portion 14 may be fastened to the connecting groove of the end plate after passing through the insertion hole from one side of the end plate of the stack, and screws are screwed into two screw holes of the third connecting portion 14 and two fixing connection holes of the connecting groove of the end plate to fixedly connect the connecting member and the end plate when mounting.
Referring to fig. 3-4, it should be noted that, because the current collecting plate 1 adopts the upper current collecting mode or the side current collecting mode, the current collecting area is not very large because of the influence of the external package of the stack. As shown in fig. 3, the overcurrent area of the current collecting plate 1 adopting the upper current collecting mode is S ═ L × H, and when the thickness (H) of the current collecting plate 1 is consistent, since the upper current collecting is limited by the stack structure, L cannot be too large, the overcurrent area is limited, if the overcurrent amount is increased, only the thickness H of the current collecting plate 1 can be increased, the production cost of the current collecting plate 1 is increased, and the increase of the thickness of the current collecting plate 1 also increases the external package volume of the stack, thereby indirectly reducing the volumetric specific power density.
The utility model discloses a current collector 1 adopts the mode of middle part mass flow, because the L of middle part mass flow mode is not influenced by the outside packaging structure of pile, as long as L no longer than current collector 1 the width can, can guarantee enough overcurrent area under the condition of the 1 thickness of the same current collector. Therefore, the utility model discloses an improve the mass flow mode of the structure of current collector plate 1 in order to change current collector plate 1, can increase current collector plate 1's overcurrent area under the prerequisite that does not increase the outside encapsulation volume of galvanic pile, can guarantee sufficient overcurrent area under the condition of the same volume of galvanic pile to volume ratio power density has been improved.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (7)
1. A fuel cell stack current collecting plate is characterized by comprising a current collecting plate body and a connecting part; the connecting part comprises a first connecting part, a second connecting part and a third connecting part;
one end of the first connecting part is connected with one side of the collector body through a bendable first bending part; the other end of the first connecting part is connected with one end of the second connecting part through a second bending part which can be bent; the other end of the second connecting part is connected with one end of the third connecting part through a bendable third bending part; the third connecting portion is provided with at least one connecting hole.
2. The collector plate for a fuel cell stack according to claim 1, wherein the plane of the first connection portion is parallel to the plane of the collector plate body.
3. The fuel cell stack current collecting plate according to claim 1, wherein a plane of the second connecting portion is perpendicular to a plane of the current collecting plate body.
4. The fuel cell stack current collecting plate according to claim 1, wherein the current collecting plate body has a rectangular plate-shaped structure.
5. The fuel cell stack current collecting plate according to claim 1, wherein thicknesses of the current collecting plate body, the first connection portion, the second connection portion, and the third connection portion are the same.
6. The fuel cell stack current collecting plate according to claim 1, wherein the coupling holes are screw holes.
7. The fuel cell stack current collecting plate according to claim 6, wherein the screw holes are two, and a distance between the two screw holes and the current collecting plate body is the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022032270.4U CN213546364U (en) | 2020-09-16 | 2020-09-16 | Collector plate of fuel cell stack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022032270.4U CN213546364U (en) | 2020-09-16 | 2020-09-16 | Collector plate of fuel cell stack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213546364U true CN213546364U (en) | 2021-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022032270.4U Active CN213546364U (en) | 2020-09-16 | 2020-09-16 | Collector plate of fuel cell stack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213546364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112103528A (en) * | 2020-09-16 | 2020-12-18 | 广东国鸿氢能科技有限公司 | Collector plate of fuel cell stack |
-
2020
- 2020-09-16 CN CN202022032270.4U patent/CN213546364U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112103528A (en) * | 2020-09-16 | 2020-12-18 | 广东国鸿氢能科技有限公司 | Collector plate of fuel cell stack |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 8, Hydrogen Energy Avenue, Foshan (Yunfu) Industrial Transfer Industrial Park, Silao Town, Yuncheng District, Yunfu City, Guangdong Province, 527300 Patentee after: Guangdong Guohong Hydrogen Energy Technology Co.,Ltd. Address before: No.9, Nanyuan District, Foshan (Yunfu) industrial transfer industrial park, Silao Town, Yuncheng district, Yunfu City, Guangdong Province Patentee before: GUANGDONG SINOSYNERGY HYDROGEN POWER TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 314000 Room 501-2, Building 37, Hangzhou Bay New Economic Park, Port District, Jiaxing City, Zhejiang Province Patentee after: Guohong Hydrogen Energy Technology (Jiaxing) Co.,Ltd. Address before: No. 8, Hydrogen Energy Avenue, Foshan (Yunfu) Industrial Transfer Industrial Park, Silao Town, Yuncheng District, Yunfu City, Guangdong Province, 527300 Patentee before: Guangdong Guohong Hydrogen Energy Technology Co.,Ltd. |