CN212008201U - Clamp for detecting compactness of fuel cell bipolar plate - Google Patents
Clamp for detecting compactness of fuel cell bipolar plate Download PDFInfo
- Publication number
- CN212008201U CN212008201U CN201922083030.4U CN201922083030U CN212008201U CN 212008201 U CN212008201 U CN 212008201U CN 201922083030 U CN201922083030 U CN 201922083030U CN 212008201 U CN212008201 U CN 212008201U
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- compactness
- fuel cell
- anchor clamps
- bipolar plate
- clamp assembly
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Abstract
The utility model relates to a clamp for detecting the compactness of a fuel cell bipolar plate, which comprises a polar plate to be tested, an upper clamp component and a lower clamp component for detecting the polar plate to be tested, wherein the upper clamp component and the lower clamp component are both provided with a test gas cabin for detecting the polar plate to be tested, two test gas cabins form a closed cavity when the upper clamp component and the lower clamp component are closed, test gas joints are arranged at the same side of the upper clamp component and the lower clamp component, the polar plate to be tested is arranged in the closed hole cavities of the upper clamp component and the lower clamp component, air is introduced into a gas inlet joint, an air inlet pipe regulates the pressure of the test gas through a pressure reducing valve, an air outlet pipe is closed at the same time, the test gas enters the test gas cabin, after the pressure is stabilized, an air inlet pipe is closed, and after the pressure is maintained, thereby realizing the detection of the compactness of the bipolar plate.
Description
Technical Field
The utility model belongs to the technical field of fuel cell, a detect anchor clamps of fuel cell bipolar plate compactness ability is related to.
Background
A fuel cell is a device that is capable of converting hydrogen fuel and an oxidant into electrical energy and reaction products. The inner core component of the device is composed of a bipolar plate clamping a membrane electrode, and the bipolar plate performs the following functions in the operation process of the fuel cell stack so as to maintain the optimal working state and the service life of the fuel cell stack: (1) the two sides of the polar plate respectively form a cathode and an anode, and the battery units are connected in series to form a fuel battery stack; (2) supplying a reaction gas (mass transfer) to the electrode through the flow channel; (3) the management of water and heat is coordinated, and the cooling medium and the reaction gas are prevented from leaking; (4) providing structural strength support to a Membrane Electrode Assembly (MEA).
The bipolar plate (also called as separator plate and flow field plate) is a key component for forming a cell stack by connecting single cells of a fuel cell in series, separates an oxidant from cooling water, a reducing agent from cooling water, establishes a current path between the anode and the cathode which are connected in series, and ensures that generated water can smoothly flow out and the temperature distribution of the fuel cell stack is uniform.
In order to increase the energy density of the fuel cell stack and reduce the resistance to current and heat conduction, the thickness of the bipolar plate should be as thin as possible while maintaining a certain mechanical strength and good gas barrier effect, but this easily results in dense cross-overs of the bipolar plate, which makes it permeable to hydrogen, oxygen and water.
To determine if the bipolar plate meets the requirements, a fixture is required to check the bipolar plate for compactness.
SUMMERY OF THE UTILITY MODEL
The utility model aims at having the above-mentioned problem to current technique, provided a can detect anchor clamps of fuel cell bipolar plate compactness ability.
The purpose of the utility model can be realized by the following technical proposal: the utility model provides a detect anchor clamps of fuel cell bipolar plate compactness ability, is including the examination polar plate of awaiting measuring and the last anchor clamps subassembly and the lower anchor clamps subassembly that are used for detecting the examination polar plate of awaiting measuring, all be provided with the test gas cabin that the apparatus detected the examination polar plate of awaiting measuring on going up anchor clamps subassembly and the lower anchor clamps subassembly, two the test gas cabin forms airtight cavity when last anchor clamps subassembly and lower anchor clamps subassembly are closed go up the anchor clamps subassembly and all be provided with the test gas and connect with the test gas cabin down, the test gas connects and is linked together with the test gas cabin, it all inlays on anchor clamps subassembly and the lower anchor clamps subassembly and is equipped with polar plate. After the clamp finishes clamping, the air inlet pipe is inserted into a gas inlet connector of the lower clamp or the upper clamp, the air outlet pipe is inserted into a gas outlet connector of the lower clamp or the upper clamp, and the corresponding gas inlet connector and the corresponding gas outlet connector of the upper clamp or the lower clamp are directly connected with the atmosphere. After the steps are completed, the air inlet pipe adjusts the pressure of the test gas through the pressure reducing valve, the pressure value is confirmed through the pressure gauge, and meanwhile the air outlet pipe is closed. The test gas enters a test gas chamber of the lower clamp or the upper clamp, the gas inlet pipe is closed after the pressure is stable, and the change of the pressure gauge is observed after the pressure is maintained for a period of time, so that the detection of the compactness of the bipolar plate is realized; the arrangement of the polar plate sealing structure can improve the air tightness of the upper clamp assembly and the lower clamp assembly after closing, and thus the detection effect of the clamp on the compactness of the bipolar plate is prevented from being influenced by air leakage between the upper clamp assembly and the lower clamp assembly.
In the above-mentioned clamp for detecting the compactness of the fuel cell bipolar plate, a plurality of upright posts are arranged in the test gas cabin. The arrangement of the upright post can prevent the testing gas chamber from being neither solid nor completely hollow, and effectively prevent the polar plate to be tested from seriously deforming so as to influence the sealing property of the clamp.
In the above-mentioned clamp for detecting the compactness of the fuel cell bipolar plate, the sealing structure is a sealing gasket matched with the shape of the peripheral surface of the polar plate to be tested. The sealing gasket is arranged to improve the air tightness of the upper clamp assembly and the lower clamp assembly after closing, and thus the detection effect of the clamp on the compactness of the bipolar plate is prevented from being influenced by air leakage between the upper clamp assembly and the lower clamp assembly.
In the above-mentioned clamp for testing the compactness of the fuel cell bipolar plate, the test gas joint comprises a gas inlet joint and a gas outlet joint. The gas inlet joint and the gas outlet joint are a gas inlet and a gas outlet of the clamp, and the clamp is used for gas inlet and gas outlet when the bipolar plate is detected.
In the above-mentioned clamp for detecting the compactness of the fuel cell bipolar plate, the gas inlet joint is arranged at the side of the upper clamp assembly, and the gas outlet joint is arranged at the side of the lower clamp assembly.
In the above-mentioned clamp for detecting the compactness of the fuel cell bipolar plate, the gas inlet joint is arranged at the side of the lower clamp assembly, and the gas outlet joint is arranged at the side of the upper clamp assembly.
In the above-mentioned anchor clamps of detecting fuel cell bipolar plate compactness ability, all offer the seal groove that is used for inlaying the sealed pad of establishing on last anchor clamps subassembly and the lower anchor clamps subassembly. The setting of seal groove can inlay sealed the pad in the seal groove, makes the installation of sealed pad more firm.
In the above-mentioned clamp for detecting the compactness of the fuel cell bipolar plate, the lower clamp assembly is fixedly provided with a plurality of guide pins, and the upper clamp assembly is provided with guide pin counter bores corresponding to the guide pins. When the upper clamp assembly and the lower clamp assembly are completely closed, the guide pin can be completely inserted into the guide pin counter bore, the upper clamp assembly and the lower clamp assembly can be guided and positioned, and the defect that the left deviation and the right deviation between the upper clamp assembly and the lower clamp assembly cause insufficient sealing performance between the upper clamp assembly and the lower clamp assembly is avoided, so that the air tightness of the fuel cell for detecting the clamp is influenced.
As another scheme, in the above fixture for testing the compactness of the fuel cell bipolar plate, the cross section of the guide pin counter bore is one or more of a triangle or a polygon.
In the above-mentioned clamp for detecting the compactness of the fuel cell bipolar plate, handles are symmetrically and fixedly arranged on two sides of the upper clamp assembly. The setting of handle can make the experimenter take the anchor clamps subassembly more convenient and laborsaving.
In the clamp for detecting the compactness of the fuel cell bipolar plate, the four corners of the lower clamp component are provided with the mounting counter bores. Through setting up the installation counter bore for be connected between lower anchor clamps subassembly and the platform, lower anchor clamps subassembly side is moved when preventing that pressure platform from exerting the packing force to this anchor clamps to influence the detection effect.
Compared with the prior art, the utility model discloses a to await measuring the polar plate and arrange anchor clamps subassembly and the closed airtight pore intracavity of anchor clamps subassembly down in, and improve the leakproofness between anchor clamps subassembly and the lower anchor clamps subassembly through sealed setting up of filling up, and let in the air in the gas inlet connects, the intake pipe carries out the pressure regulating to test gas through the relief pressure valve, and confirm the pressure value through the manometer, the outlet duct is closed simultaneously, test gas gets into anchor clamps or last anchor clamps test gas cabin down, after the pressure stabilization, close the intake pipe, after a period pressurize, observe whether the manometer changes, thereby realize the detection to bipolar plate compactness.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic structural view of the lower clamp assembly of the present invention;
FIG. 3 is a schematic structural view of the upper clamp assembly of the present invention;
fig. 4 is an exploded view of the present invention.
In the figure, 1, a polar plate to be tested; 2. an upper clamp assembly; 3. a lower clamp assembly; 4. a test gas chamber; 5. testing the gas joint; 51. a gas inlet fitting; 52. a gas outlet connection; 6. a polar plate sealing structure; 7. a sealing groove; 8. a guide pin; 9. a guide pin counter bore; 10. a column; 11. a handle; 12. and (6) mounting a counter bore.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 4, a clamp for detecting the compactness of a fuel cell bipolar plate comprises a plate to be tested 1, and an upper clamp assembly 2 and a lower clamp assembly 3 for detecting the plate to be tested 1.
The upper clamp assembly 2 and the lower clamp assembly 3 are respectively provided with a test gas chamber 4 for detecting the polar plate 1 to be tested, a plurality of upright columns 10 are arranged in the test gas chamber 4, and the arrangement of the upright columns 10 can avoid that the test gas chamber 4 is neither solid nor completely hollow, thereby effectively preventing the polar plate 1 to be tested from being seriously deformed to influence the sealing property of the clamp; two test gas cabins 4 form a closed cavity when the upper clamp assembly 2 and the lower clamp assembly 3 are closed, the test gas connectors 5 are arranged on the same sides of the upper clamp assembly 2 and the lower clamp assembly 3, the test gas connectors 5 are communicated with the test gas cabins 4, and each test gas connector 5 comprises a gas inlet connector 51 and a gas outlet connector 52. The gas inlet connector 51 and the gas outlet connector 52 are gas inlets and gas outlets of the clamp, the gas inlet connector 51 is arranged at the side part of the upper clamp assembly 2, the gas outlet connector 52 is arranged at the side part of the lower clamp assembly 3, the gas inlet connector 51 is arranged at the side part of the lower clamp assembly 3, and the gas outlet connector 52 is arranged at the side part of the upper clamp assembly 2; when the clamp is used for detecting the bipolar plate, the air inlet pipe and the air outlet pipe are connected, so that air inlet and air outlet of the clamp are facilitated.
And the upper clamp assembly 2 and the lower clamp assembly 3 are both embedded with a polar plate sealing structure 6, and the sealing structures are sealing gaskets matched with the shape of the peripheral surface of the polar plate to be tested 1. The arrangement of the sealing gasket can improve the air tightness of the upper clamp assembly 2 and the lower clamp assembly 3 after being closed, and avoid the air leakage between the upper clamp assembly 2 and the lower clamp assembly 3 to influence the detection effect of the clamp on the compactness of the bipolar plate; go up and all offer on anchor clamps subassembly 2 and the lower anchor clamps subassembly 3 and be used for inlaying the seal groove of establishing sealed pad, wherein seal groove and the shape phase-match that seals up. The setting of seal groove can inlay sealed the pad in the seal groove, makes the installation of sealed pad more firm.
A plurality of guide pins 8 are fixedly arranged on the lower clamp assembly 3, and guide pin counter bores 9 corresponding to the guide pins 8 are formed in the upper clamp assembly 2; the guide pin counter bore 9 has one or more of a triangular or polygonal cross-section. When the upper clamp assembly 2 and the lower clamp assembly 3 are completely closed, the guide pin 8 can be completely inserted into the guide pin counter bore 9, the upper clamp assembly 2 and the lower clamp assembly 3 can be guided and positioned, and the defect that the left and right deviation between the upper clamp assembly 2 and the lower clamp assembly 3 causes insufficient sealing performance between the upper clamp assembly 2 and the lower clamp assembly 3 is avoided, so that the air tightness of the fuel cell for detecting the clamp is influenced.
Besides, four corners of the lower clamp component 3 are provided with mounting counter bores 12. Through setting up installation counter bore 12 for being connected between lower anchor clamps subassembly 3 and the platform, lower anchor clamps subassembly 3 sideshift when preventing that pressure platform from exerting the packing force to this anchor clamps to influence the detection effect.
1, when the clamp is used for testing, after the clamp is clamped, an air inlet pipe is inserted into an air inlet joint 51 of the lower clamp assembly 3 or the upper clamp assembly 2, an air outlet pipe is inserted into an air outlet joint 52 of the lower clamp assembly 3 or the upper clamp assembly 2, and the corresponding air inlet joint and the corresponding air outlet joint of the upper clamp or the lower clamp are directly connected with the atmosphere. After the steps are completed, the air inlet pipe adjusts the pressure of the test gas through the pressure reducing valve, the pressure value is confirmed through the pressure gauge, and meanwhile the air outlet pipe is closed. The test gas enters the test gas chamber 4 in the lower clamp assembly 3 or the upper clamp assembly 2, after the pressure is stable, the gas inlet pipe is closed, and after the pressure is maintained for a period of time, whether the pressure gauge changes or not is observed.
2. When the liquid is used for testing, after the clamp finishes clamping, the air inlet pipe is inserted into the air inlet joint 51 of the lower clamp assembly 3 or the upper clamp assembly 2, the air outlet pipe is inserted into the air outlet joint 52 of the lower clamp assembly 3 or the upper clamp assembly 2, the corresponding air inlet joint and outlet joint of the upper clamp assembly 2 or the lower clamp assembly 3 are inserted into the testing air pipe, and the other side of the testing air pipe is introduced into a container with the liquid. After the steps are completed, the air inlet pipe adjusts the pressure of the test gas through the pressure reducing valve, the pressure value is confirmed through the pressure gauge, and meanwhile the air outlet pipe is closed. And the test gas enters the test gas chamber 4 of the lower clamp assembly 3 or the upper clamp assembly 2, and after the pressure is stable and a period of time passes, whether bubbles are generated in the container is observed.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. The utility model provides a detect anchor clamps of fuel cell bipolar plate compactness ability, is including the examination polar plate (1) and be used for detecting last anchor clamps subassembly (2) and lower anchor clamps subassembly (3) of examination polar plate (1), its characterized in that, all be provided with on going up anchor clamps subassembly (2) and lower anchor clamps subassembly (3) that the apparatus detects examination gas cabin (4) of examination polar plate (1), two test gas cabin (4) form airtight cavity when last anchor clamps subassembly (2) and lower anchor clamps subassembly (3) are closed go up the homonymy of anchor clamps subassembly (2) and lower anchor clamps subassembly (3) and all be provided with test gas joint (5), test gas joint (5) are linked together with test gas cabin (4), it all inlays on anchor clamps subassembly (2) and lower anchor clamps subassembly (3) and is equipped with polar plate seal structure (6).
2. The clamp for detecting the compactness of the fuel cell bipolar plate as claimed in claim 1, wherein: a plurality of upright posts (10) are arranged in the test gas cabin (4).
3. The clamp for detecting the compactness of the fuel cell bipolar plate as claimed in claim 1 or 2, wherein: the polar plate sealing structure (6) is a sealing gasket matched with the shape of the peripheral surface of the polar plate (1) to be tested.
4. The clamp for detecting the compactness of the fuel cell bipolar plate as claimed in claim 2, wherein: the test gas connection (5) comprises a gas inlet connection (51) and a gas outlet connection (52).
5. The clamp for detecting the compactness of the fuel cell bipolar plate as claimed in claim 4, wherein: the gas inlet connector (51) is arranged on the side of the upper clamp assembly (2), and the gas outlet connector (52) is arranged on the side of the lower clamp assembly (3).
6. The clamp for detecting the compactness of the fuel cell bipolar plate as claimed in claim 5, wherein: the gas inlet connector (51) is arranged on the side of the lower clamp assembly (3), and the gas outlet connector (52) is arranged on the side of the upper clamp assembly (2).
7. The fixture for testing the compactness of the bipolar plate of the fuel cell as claimed in claim 1, 2 or 5, wherein: and the upper clamp assembly (2) and the lower clamp assembly (3) are provided with sealing grooves (7) for embedding sealing gaskets.
8. The fixture for testing the compactness of the bipolar plate of the fuel cell as claimed in claim 1, 2 or 5, wherein: the lower clamp component (3) is fixedly provided with a plurality of guide pins (8), and the upper clamp component (2) is provided with guide pin counter bores (9) corresponding to the guide pins (8).
9. The fixture for testing the compactness of the bipolar plate of the fuel cell as claimed in claim 1, 2 or 5, wherein: handles (11) are symmetrically and fixedly arranged on two sides of the upper clamp assembly (2).
10. The fixture for testing the compactness of the bipolar plate of the fuel cell as claimed in claim 1, 2 or 5, wherein: four corners of the lower clamp component (3) are provided with mounting counter bores (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922083030.4U CN212008201U (en) | 2019-11-27 | 2019-11-27 | Clamp for detecting compactness of fuel cell bipolar plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922083030.4U CN212008201U (en) | 2019-11-27 | 2019-11-27 | Clamp for detecting compactness of fuel cell bipolar plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212008201U true CN212008201U (en) | 2020-11-24 |
Family
ID=73412079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922083030.4U Expired - Fee Related CN212008201U (en) | 2019-11-27 | 2019-11-27 | Clamp for detecting compactness of fuel cell bipolar plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212008201U (en) |
-
2019
- 2019-11-27 CN CN201922083030.4U patent/CN212008201U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201124 Termination date: 20211127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |