CN210668546U - Fuel cell inlet and outlet structure and fuel cell - Google Patents
Fuel cell inlet and outlet structure and fuel cell Download PDFInfo
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- CN210668546U CN210668546U CN201922011126.XU CN201922011126U CN210668546U CN 210668546 U CN210668546 U CN 210668546U CN 201922011126 U CN201922011126 U CN 201922011126U CN 210668546 U CN210668546 U CN 210668546U
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- fuel cell
- hole
- outlet structure
- insulating plate
- embedded pipe
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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 belongs to the technical field of fuel cell, a fuel cell inlet and outlet structure and fuel cell is disclosed, this fuel cell inlet and outlet structure includes: the insulating plate is provided with a communication hole, one end of the communication hole is communicated with the inner cavity of the fuel cell, and one side of the insulating plate is in sealing and abutting joint with the fuel cell main body; the end plate is provided with an embedding hole and is abutted against the other side of the insulating plate in a sealing manner; the embedded pipe is embedded in the embedding hole and is abutted against the other side of the insulating plate in a sealing manner, and an inner hole is formed in the embedded pipe and is communicated with the other end of the communicating hole. Through the structure, the fuel cell inlet and outlet structure is high in connection strength and not prone to corrosion. The utility model provides a fuel cell can prevent to import and export the inner chamber and corrode, prevents to corrode in impurity falls into this fuel cell, is favorable to improving this fuel cell's reliability and life.
Description
Technical Field
The utility model relates to a fuel cell technical field especially relates to a fuel cell imports and exports structure and fuel cell.
Background
A fuel cell is a device that can directly convert chemical energy of fuel into electric energy, and has an increasingly wide application range because of its advantages of high power generation efficiency, low environmental pollution, and the like. At present, in order to facilitate the packaging of the fuel cell, it is common to provide end plates at the inlet and outlet of the fuel cell, and to press the end plates against the cell main body by long bolts for packaging.
Currently, the end plates at the fuel cell inlet and outlet are typically made of plastic or metal plates with insulating plates underlying the plates. Because the inlet and outlet in the fuel cell end plate are usually of special-shaped structures, the mold opening difficulty is high, and the plastic plate serving as the end plate has strong corrosion resistance, but the connection strength is poor, local buckling deformation is easy to occur under the action of the pressing force of the long bolt, and a threaded sleeve must be embedded in a bolt hole to form a connecting thread, so that the threaded sleeve is easy to loosen and fall off after long-term use, and the connection of the end plate is influenced. Although the problem of insufficient connection strength and connection threads can be solved by the mode of padding the metal plate with the insulating plate, the insulating property of the metal plate inlet and outlet inner cavities is poor, and the metal plate inlet and outlet inner cavities are easy to corrode due to moisture generated by the fuel cell, so that the inlet and outlet inner cavities are corroded and peeled off, and the use reliability and the service life of the fuel cell are influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fuel cell imports and exports structure, this fuel cell imports and exports structure joint strength height, and difficult emergence is corroded.
To achieve the purpose, the utility model adopts the following technical proposal:
a fuel cell inlet-outlet structure comprising:
the fuel cell comprises an insulating plate, a fuel cell body and a fuel cell cover, wherein a communication hole is formed in the insulating plate, one end of the communication hole is communicated with an inner cavity of the fuel cell, and one side of the insulating plate is in sealing and abutting joint with the fuel cell body;
the end plate is provided with an embedded hole and is abutted against the other side of the insulating plate in a sealing manner;
the embedded pipe is embedded in the embedding hole, the embedded pipe is abutted against the other side of the insulating plate in a sealing mode, an inner hole is formed in the embedded pipe, and the inner hole is communicated with the other end of the communicating hole.
Preferably, the embedded pipe is provided with a stepped hole, the connecting bolt penetrates through the embedded pipe and is connected to a step of the stepped hole, and the connecting bolt connects the embedded pipe to the step.
Preferably, the embedded pipe structure further comprises an external pipeline, a connecting flange is arranged on the external pipeline, and the connecting bolt penetrates through the connecting flange and connects the connecting flange to the embedded pipe in a sealing mode.
Preferably, the end plate is provided with a mounting hole, a long bolt passes through the mounting hole and is connected to the fuel cell main body, and the long bolt presses the end plate against the insulating plate.
Preferably, the insulating plate is provided with a first sealing groove, a first sealing ring is installed in the first sealing groove, and the embedded pipe is abutted to the insulating plate through the first sealing ring in a sealing mode.
Preferably, the embedded pipe is provided with a second sealing groove, a second sealing ring is installed in the second sealing groove, and the connecting flange is in sealing and abutting connection with the embedded pipe through the second sealing ring.
Preferably, the embedded tube is made of plastic.
Preferably, the insulating plate is made of plastic.
Preferably, the end plate is made of an aluminum alloy.
Another object of the present invention is to provide a fuel cell, which has good insulating property, and can avoid corrosion in the inlet and outlet, and prevent corrosion impurities from falling into the fuel cell, thereby improving the reliability and the service life of the fuel cell.
To achieve the purpose, the utility model adopts the following technical proposal:
a fuel cell comprising the fuel cell inlet-outlet structure of any of the above aspects.
The utility model has the advantages that:
the utility model provides a fuel cell inlet and outlet structure, the end plate of the fuel cell inlet and outlet structure is sealed and abutted against an insulating plate, and the insulating plate is pressed to be sealed and abutted against a fuel cell main body, thereby providing a larger and uniform pressing force to act on the insulating plate, and improving the connection strength of the fuel cell inlet and outlet structure; the insulating plate is provided with a communicating hole communicated with the inner cavity of the fuel cell, the end plate is embedded with an embedded pipe, the embedded pipe is in sealing and abutting joint with the insulating plate, and the inner hole of the embedded pipe is communicated with the communicating hole of the insulating plate, so that water generated by the fuel cell can be discharged through the inner hole and the communicating hole and cannot be contacted with the end plate, and the corrosion of the end plate is avoided; the utility model also provides a fuel cell, this fuel cell include foretell fuel cell and import and export the structure, this fuel cell's import and export inner chamber through set up the hole on the insulation board with inlay the embedded pipe in the end plate, avoided the intracavity emergence corruption in the import and export, prevent to corrode impurity and fall into this fuel cell in, can improve this fuel cell's reliability and life.
Drawings
Fig. 1 is a cross-sectional view of a fuel cell inlet/outlet structure according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of an inlet/outlet structure of a fuel cell according to an embodiment of the present invention;
fig. 3 is a front view of a fuel cell inlet/outlet structure according to an embodiment of the present invention;
fig. 4 is a left side view of a fuel cell inlet/outlet structure according to an embodiment of the present invention.
In the figure:
1. an insulating plate; 11. a communicating hole; 12. a first seal groove; 121. a first seal ring; 2. an end plate; 21. embedding holes; 22. mounting holes; 3. embedding a tube; 31. an inner bore; 32. a second seal groove; 321. a second seal ring; 4. a connecting bolt; 5. connecting a pipeline externally; 51. and connecting the flanges.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The utility model provides a fuel cell inlet and outlet structure, as shown in figure 1, the fuel cell inlet and outlet structure comprises an insulating plate 1, an end plate 2 and an embedded pipe 3, the embedded pipe 3 is embedded and installed in the end plate 2, one side of the insulating plate 1 is sealed and abutted on a fuel cell main body, the end plate 2 and the embedded pipe 3 embedded and installed in the end plate are sealed and abutted on the other side of the insulating plate 1 together, the end plate 2 can bear larger pressing force, so that the end plate can provide larger and uniform pressing force to press on the insulating plate 1, and the connecting strength of the fuel cell inlet and outlet structure is improved; in this embodiment, the insulating plate 1 is provided with the communication hole 11, the communication hole 11 is communicated with the inner cavity of the fuel cell, the embedded tube 3 is provided with an inner hole 31, the inner hole 31 is communicated with the communication hole 11, so that gas generated in the inner cavity of the fuel cell can be discharged out of the fuel cell through the communication hole 11 and the inner hole 31, and fuel gas can be introduced into the fuel cell through the communication hole 11 and the inner hole 31, because the embedded tube 3 is embedded and installed in the end plate 2, water vapor generated in the inner cavity of the fuel cell is discharged through the inner hole 31 in the embedded tube 3, and the inlet and outlet structure of the fuel cell prevents the water vapor generated in the inner cavity of the fuel; meanwhile, due to the isolation effect of the embedded pipe 3, the contact between the end plate 2 and the inner cavity of the inlet and the outlet of the fuel cell is avoided, and the insulating property of the inlet and the outlet structure of the fuel cell is further improved.
In this embodiment, the embedded pipe 3 is made of a corrosion-resistant plastic material, and can better insulate and isolate the end plate 2 and the inner cavity of the fuel cell inlet and outlet, thereby not only preventing the end plate 2 from being in short circuit due to the contact with the gas flowing through the inner cavity of the fuel cell inlet and outlet, and further improving the insulating property of the fuel cell inlet and outlet structure, but also preventing the inner cavity of the inner hole 31 from being corroded due to the gas flowing through the inner cavity of the fuel cell inlet and outlet, avoiding corrosive impurities from dropping into the inner cavity of the fuel cell, and influencing the reliability and the service life of the fuel cell. Preferably, the insulating plate 1 is made of a corrosion-resistant plastic material, and when gas flowing through the inner cavity of the inlet/outlet of the fuel cell contacts with the inner cavity of the communication hole 11, short circuit does not occur, and impurities generated by corrosion in the inner cavity of the communication hole 11 cannot fall into the inner cavity of the fuel cell, which is beneficial to improving the reliability and the service life of the fuel cell.
As shown in fig. 2-4, the fuel cell inlet/outlet structure preferably further includes an external pipe 5, and one end of the external pipe 5 is connected to the inner hole 31 for introducing external fuel gas into the fuel cell or exhausting gas generated in the fuel cell. More preferably, one end of the external pipe 5 is provided with a connecting flange 51, and the external pipe 5 is connected to the internal pipe 3 through the connecting flange 51 so as to be communicated with the inner hole 31, so that the external pipe 5 is firmly connected with the internal pipe 3. More preferably, the cross-sectional shapes of the inner hole 31 and the communication hole 11 are both circular and equal to the inner diameter of the external pipe 5, so that the resistance of the fuel cell inlet and outlet structure to gas inlet and outlet is small, and the gas flows smoothly. In this embodiment, the fuel cell inlet and outlet structure further includes a connecting bolt 4, the connecting bolt 4 is inserted into the connecting flange 51, and the connecting flange 51 is connected to the embedded pipe 3, so that the connection and the detachment are convenient.
Preferably, be equipped with on the end plate 2 and inlay hole 21, embedded pipe 3 is installed in end plate 2 through inlaying hole 21 for embedded pipe 3's installation and dismantlement are convenient, are convenient for change. Specifically, inlay hole 21 and be the shoulder hole, connecting bolt 4 wears to establish and connects on the step of inlaying hole 21 behind flange 51 and the embedded pipe 3, makes flange 51 sticis in embedded pipe 3 through the locking of connecting bolt 4 with the step of inlaying hole 21, is favorable to guaranteeing the leakproofness that external pipeline 5 and embedded pipe 3 are connected, still makes embedded pipe 3 can zonulae occludens in the step face of inlaying hole 21, prevents that embedded pipe 3 from inlaying and coming off in the hole 21. More preferably, the second seal groove 32 is provided in the embedded pipe 3, the second seal ring 321 is installed in the second seal groove 32, and the connecting flange 51 is in sealing contact with the embedded pipe 3 through the second seal ring 321, so that the sealing property between the external pipe 5 and the embedded pipe 3 can be further enhanced, and gas leakage can be prevented. In this embodiment, the second seal ring 321 is preferably an O-ring, which has a wide application range and is easy to obtain.
In this embodiment, the end plate 2 is connected to the fuel cell main body through the long bolt, and the long bolt can provide sufficient packaging power for the end plate 2 through screwing up with the fuel cell main body, so that the end plate 2 can be tightly pressed on the insulating plate 1, and simultaneously the end plate 2 can drive the embedded pipe 3 to be tightly pressed on the insulating plate 1, thereby ensuring the sealing butt between the embedded pipe 3 and the insulating plate 1 and preventing the gas from leaking from the butt. Preferably, the edge of the end plate 2 is provided with a mounting hole 22, and a long bolt is inserted through the mounting hole 22 and connected to the fuel cell main body, so that the long bolt can conveniently connect the end plate 2 to the fuel cell main body. Preferably, the end plate 2 is made of 6061-T6 aluminum alloy material, so that the end plate 2 has high strength, good flatness and low material cost. Preferably, the insulating plate 1 is provided with a first sealing groove 12, the first sealing ring 121 is installed in the first sealing groove 12, and the insulating plate 1 is in sealing contact with the embedded pipe 3 through the first sealing ring 121, so that the sealing performance of the insulating plate 1 and the embedded pipe 3 can be further enhanced, and gas leakage can be prevented. In this embodiment, the second seal ring 321 is preferably an O-ring, which has a wide application range and is easy to obtain.
The utility model also provides a fuel cell, this fuel cell adopt the fuel cell exit structure that above-mentioned scheme provided, this fuel cell's exit inner chamber through set up the intercommunicating pore 11 on insulation board 1 with inlay the embedded pipe 3 in end plate 2, can avoid the intracavity emergence corruption in the exit, prevent to corrode impurity and fall into this fuel cell in, can improve this fuel cell's reliability and life.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A fuel cell inlet-outlet structure, comprising:
the fuel cell comprises an insulating plate (1), wherein a communication hole (11) is formed in the insulating plate (1), one end of the communication hole (11) is communicated with an inner cavity of the fuel cell, and one side of the insulating plate (1) is in sealing contact with a fuel cell main body;
the insulating plate comprises an end plate (2), wherein an embedded hole (21) is formed in the end plate (2), and the end plate (2) is in sealing butt joint with the other side of the insulating plate (1);
embedded pipe (3), embedded pipe (3) embedding install in inlay in hole (21), embedded pipe (3) seal butt in the opposite side of insulation board (1), be equipped with hole (31) on embedded pipe (3), hole (31) communicate in the other end of intercommunicating pore (11).
2. The fuel cell inlet-outlet structure according to claim 1, further comprising a connection bolt (4), wherein the insertion hole (21) is a stepped hole, the connection bolt (4) passes through the embedded pipe (3) and is connected to a step of the stepped hole, and the connection bolt (4) connects the embedded pipe (3) to the step.
3. The fuel cell inlet and outlet structure according to claim 2, further comprising an external pipe (5), wherein a connecting flange (51) is arranged on the external pipe (5), and the connecting bolt (4) penetrates through the connecting flange (51) and connects the connecting flange (51) to the embedded pipe (3) in a sealing manner.
4. The fuel cell inlet-outlet structure according to claim 1, wherein the end plate (2) is provided with a mounting hole (22), and a long bolt is passed through the mounting hole (22) and attached to the fuel cell main body, the long bolt pressing the end plate (2) against the insulating plate (1).
5. The fuel cell inlet and outlet structure according to claim 1, wherein a first sealing groove (12) is formed in the insulating plate (1), a first sealing ring (121) is installed in the first sealing groove (12), and the embedded pipe (3) is in sealing contact with the insulating plate (1) through the first sealing ring (121).
6. The fuel cell inlet and outlet structure according to claim 3, wherein a second sealing groove (32) is formed in the embedded pipe (3), a second sealing ring (321) is installed in the second sealing groove (32), and the connecting flange (51) is in sealing contact with the embedded pipe (3) through the second sealing ring (321).
7. The fuel cell inlet-outlet structure according to claim 1, wherein the embedded tube (3) is made of plastic.
8. The fuel cell inlet-outlet structure according to claim 1, wherein the insulating plate (1) is made of plastic.
9. The fuel cell inlet-outlet structure according to claim 1, wherein the end plate (2) is made of an aluminum alloy.
10. A fuel cell comprising a fuel cell inlet-outlet structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922011126.XU CN210668546U (en) | 2019-11-20 | 2019-11-20 | Fuel cell inlet and outlet structure and fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922011126.XU CN210668546U (en) | 2019-11-20 | 2019-11-20 | Fuel cell inlet and outlet structure and fuel cell |
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| Publication Number | Publication Date |
|---|---|
| CN210668546U true CN210668546U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922011126.XU Active CN210668546U (en) | 2019-11-20 | 2019-11-20 | Fuel cell inlet and outlet structure and fuel cell |
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| CN (1) | CN210668546U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113437323A (en) * | 2021-06-25 | 2021-09-24 | 中汽创智科技有限公司 | Air inlet end plate structure of fuel cell and fuel cell |
| CN113782801A (en) * | 2021-08-30 | 2021-12-10 | 深圳深科鹏沃科技有限公司 | Fuel cell packaging assembly and fuel cell |
| CN114583234A (en) * | 2022-02-28 | 2022-06-03 | 上海骥翀氢能科技有限公司 | Insulating end plate of fuel cell stack and assembling mode |
| WO2023193873A1 (en) * | 2022-04-04 | 2023-10-12 | Ceres Intellectual Property Company Limited | Electrochemical cell assembly with recessed plate |
-
2019
- 2019-11-20 CN CN201922011126.XU patent/CN210668546U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113437323A (en) * | 2021-06-25 | 2021-09-24 | 中汽创智科技有限公司 | Air inlet end plate structure of fuel cell and fuel cell |
| CN113782801A (en) * | 2021-08-30 | 2021-12-10 | 深圳深科鹏沃科技有限公司 | Fuel cell packaging assembly and fuel cell |
| CN114583234A (en) * | 2022-02-28 | 2022-06-03 | 上海骥翀氢能科技有限公司 | Insulating end plate of fuel cell stack and assembling mode |
| WO2023193873A1 (en) * | 2022-04-04 | 2023-10-12 | Ceres Intellectual Property Company Limited | Electrochemical cell assembly with recessed plate |
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