CN219798636U - Simple membrane electrode air tightness detection clamp - Google Patents
Simple membrane electrode air tightness detection clamp Download PDFInfo
- Publication number
- CN219798636U CN219798636U CN202320834054.2U CN202320834054U CN219798636U CN 219798636 U CN219798636 U CN 219798636U CN 202320834054 U CN202320834054 U CN 202320834054U CN 219798636 U CN219798636 U CN 219798636U
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- China
- Prior art keywords
- air
- membrane electrode
- upper pressing
- lower base
- base plate
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- 239000012528 membrane Substances 0.000 title claims abstract description 52
- 238000001514 detection method Methods 0.000 title claims abstract description 32
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 239000000758 substrate Substances 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 10
- 239000000446 fuel Substances 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to the technical field of membrane electrodes, and particularly discloses a simple membrane electrode air tightness detection clamp. The simple membrane electrode air tightness detection clamp comprises an upper pressing plate, a lower base plate, a plurality of positioning guide posts and a locking assembly, wherein the upper pressing plate is positioned on the lower base plate through the positioning guide posts and is in locking connection with the lower base plate through the locking assembly; the membrane electrode to be measured is fixed between the upper pressing plate and the lower base plate through each positioning guide post; the outer sides of the upper pressing plate and the lower base plate are respectively provided with an air inlet and an air outlet; the opposite sides of the lower base plate and the upper pressing plate are provided with sealing grooves and air guide grooves positioned in the sealing groove surrounding rings; the air guide groove is communicated with the corresponding air inlet or air outlet, and an air guide plate is arranged in the air guide groove in an interference fit manner; a sealing ring is arranged in the sealing groove. The simple membrane electrode air tightness detection clamp is high in modularization degree, simple and convenient to operate and low in cost.
Description
Technical Field
The utility model relates to the technical field of membrane electrodes, in particular to a simple membrane electrode air tightness detection clamp.
Background
The fuel cell is formed by stacking Membrane Electrodes (MEA) and bipolar plates in a multi-layer mode, wherein one side of the Membrane Electrode (MEA) is hydrogen, the other side of the membrane electrode is air, and the Membrane Electrode (MEA) plays roles in isolating gas and exchanging protons. If the Membrane Electrode (MEA) is damaged or leaked, the phenomenon that hydrogen leaks into an air cavity or air leaks into the hydrogen cavity occurs, and the leaked part can be burnt under the action of a catalyst, so that the safety of the fuel cell stack is threatened. Therefore, before assembling the stack, it is necessary to perform a seal test for each Membrane Electrode (MEA).
Because the membrane electrode products in the current fuel cell are rich in diversity, each membrane electrode is required to be provided with a corresponding detection clamp, the modularization degree is low, and the detection cost is higher. Therefore, there is a need for an improvement over existing membrane electrode assembly fixtures to address the above-described problems.
Disclosure of Invention
The utility model aims to provide a simple membrane electrode air tightness detection clamp which is high in modularization degree, simple and convenient to operate and low in cost.
To achieve the purpose, the utility model adopts the following technical scheme:
the simple membrane electrode air tightness detection clamp comprises an upper pressing plate, a lower substrate, a plurality of positioning guide posts and a locking assembly, wherein the upper pressing plate is positioned on the lower substrate through each positioning guide post and is in locking connection with the lower substrate through the locking assembly; the membrane electrode to be measured is fixed between the upper pressing plate and the lower base plate through the positioning guide posts;
the outer sides of the upper pressing plate and the lower substrate are respectively provided with an air inlet and an air outlet; the opposite sides of the lower substrate and the upper pressing plate are provided with sealing grooves and air guide grooves positioned in the sealing groove surrounding rings; the air guide groove is communicated with the corresponding air inlet or the air outlet, and an air guide plate is arranged in the air guide groove in an interference fit manner; and a sealing ring is arranged in the sealing groove.
Further, honeycomb holes with two through ends are formed in the air guide plate.
Further, the sealing rings are adhered in the corresponding sealing grooves through silica gel.
Further, the locking assembly comprises two rows of adjustable buckles, and a base and a buckle seat of each adjustable buckle are respectively connected with the upper pressing plate and the lower base plate.
Further, the air inlet is communicated with an external air source through an air inlet pipeline, and a pressure regulating valve is arranged in the air inlet pipeline; the air outlet is connected with an air outlet pipeline, and an air flowmeter is arranged in the air outlet pipeline.
Further, the top surface of the upper pressing plate is connected with a handle.
Further, support legs are mounted on the bottom surface of the lower substrate.
The beneficial effects of the utility model are as follows: the simple membrane electrode air tightness detection clamp realizes clamp modularization, is applicable to detection of various membrane electrodes by replacing the air guide plate, is simple and convenient to operate, low in cost and high in efficiency, solves the problem of complex detection of various single-batch air tightness of membrane electrode products, provides great convenience for air tightness detection, and has wide market prospect.
Drawings
Fig. 1 is a schematic structural diagram of a simple membrane electrode air tightness detection clamp provided by the utility model.
Fig. 2 is a left side view of the simple membrane electrode air tightness detection clamp provided by the utility model.
Fig. 3 is a section A-A in fig. 2.
Fig. 4 is a bottom view of the simple membrane electrode air tightness detection clamp provided by the utility model.
Description of the embodiments
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 4, a simple membrane electrode air tightness detection clamp comprises an upper pressing plate 7, a lower base plate 8, a plurality of positioning guide posts 3 and a locking component; the upper pressing plate 7 is positioned and arranged on the lower base plate 8 through each positioning guide post 3 and is in locking connection with the lower base plate 8 through the locking component 2; the membrane electrode to be measured is fixed between the upper pressing plate 7 and the lower base plate 8 through the positioning guide posts 3.
Specifically, the outer sides of the upper pressing plate 7 and the lower base plate 8 are respectively provided with an air inlet (not shown) and an air outlet 1; the opposite sides of the lower base plate 8 and the upper pressing plate 7 are provided with sealing grooves and air guide grooves positioned in the sealing groove surrounding rings; the air guide groove is communicated with a corresponding air inlet or air outlet 1 on the same upper pressing plate 7 or lower base plate 8, and an air guide plate 9 is arranged in an interference fit manner; a sealing ring 6 is arranged in the sealing groove.
Further, the inside of the air guide plate 9 is provided with honeycomb holes with two through ends. When in use, gas enters the gas guide groove through the gas inlet, and the enterprise is guided to the membrane electrode to be tested through the honeycomb holes on the gas guide plate 9. The bearing pressure of the membrane electrode during the detection can be shared through the honeycomb hole structure without affecting the air tightness detection, and the proton membrane is prevented from generating cracks, so that the air tightness detection is carried out and the membrane electrode product is protected. Due to the sealing ring 6, the sealing effect of the membrane electrode to be measured on the gas between the upper pressing plate 7 and the lower substrate 8 is good.
In this embodiment, the sealing rings 6 are bonded in the corresponding sealing grooves by means of silicone rubber.
As shown in fig. 1 and 2, the locking assembly includes two rows of adjustable buckles 2, a base 21 and a buckle seat 23 of each adjustable buckle 2 are respectively connected with the upper pressing plate 7 and the lower base plate 8, and a hook 22 of the adjustable buckle 2 is arranged on the base 21 and is connected with the buckle seat 23 in a hanging buckle manner.
The air inlet is communicated with an external air source through an air inlet pipeline, and the air supply pressure of the external air source is not higher than 0.2MPa; the air inlet pipeline is internally provided with a pressure regulating valve for regulating air inlet pressure; the air outlet 1 is connected with an air outlet pipeline, and a gas flowmeter is arranged in the air outlet pipeline, and the gas flowmeter is preferably a digital display gas flowmeter so as to be convenient for reading the volume of the gas passing through the membrane electrode.
In addition, the top surface of the upper pressing plate 7 is connected with a handle 5 so as to be convenient for taking and placing the upper pressing plate 7. The support legs 4 are installed on the bottom surface of the lower substrate 8 to ensure stable placement of the lower substrate 8.
According to the simple membrane electrode air tightness detection clamp, when in testing, the matched air guide plate 9 is selected according to the membrane electrode, the membrane electrode is correctly placed on the lower base plate 8 through the positioning guide post 3, the upper pressing plate 7 is guided to be in butt joint with the lower base plate 8 through the positioning guide post 3, and the upper pressing plate 7 is locked with the lower base plate 8 through each adjustable buckle 2.
The air source is opened, the pressure is controlled to be a certain fixed value which is not more than 0.1MPa through the pressure regulating valve, and the air tightness of the membrane electrode can be judged by reading the volume of the air passing through the membrane electrode through the digital display flowmeter in unit time.
The simple membrane electrode air tightness detection clamp disclosed by the utility model can be used for detecting the air tightness of different membrane electrode products by only replacing the corresponding air guide plate 9, is simple and convenient to operate, low in cost and high in efficiency, solves the problem of complex detection of various and single-batch air tightness of the membrane electrode products, provides great convenience for the air tightness detection of the membrane electrode products, and has a wide market prospect.
The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (7)
1. The simple membrane electrode air tightness detection clamp is characterized by comprising an upper pressing plate (7), a lower base plate (8), a plurality of positioning guide posts (3) and a locking assembly, wherein the upper pressing plate (7) is positioned on the lower base plate (8) through each positioning guide post (3) and is in locking connection with the lower base plate (8) through the locking assembly; the membrane electrode to be measured is fixed between the upper pressing plate (7) and the lower base plate (8) through each positioning guide post (3);
an air inlet and an air outlet (1) are respectively formed in the outer sides of the upper pressing plate (7) and the lower base plate (8); the opposite sides of the lower base plate (8) and the upper pressing plate (7) are respectively provided with a sealing groove and an air guide groove positioned in the sealing groove surrounding ring; the air guide groove is communicated with the corresponding air inlet or the corresponding air outlet (1), and an air guide plate (9) is arranged in the air guide groove in an interference fit manner; a sealing ring (6) is arranged in the sealing groove.
2. The simple membrane electrode air tightness detection clamp according to claim 1, wherein the air guide plate (9) is internally provided with honeycomb holes with two through ends.
3. The simple membrane electrode air tightness detection clamp according to claim 1, wherein the sealing rings (6) are adhered in the corresponding sealing grooves through silica gel.
4. The simple membrane electrode air tightness detection clamp according to claim 1, wherein the locking assembly comprises two rows of adjustable buckles (2), and a base (21) and a buckle seat (23) of each adjustable buckle (2) are respectively connected with the upper pressing plate (7) and the lower base plate (8).
5. The simple membrane electrode air tightness detection clamp according to claim 1, wherein the air inlet is communicated with an external air source through an air inlet pipeline, and a pressure regulating valve is arranged in the air inlet pipeline; the gas outlet (1) is connected with a gas outlet pipeline, and a gas flowmeter is arranged in the gas outlet pipeline.
6. The simple membrane electrode air tightness detection clamp according to claim 1, wherein the top surface of the upper pressing plate (7) is connected with a handle (5).
7. The simple membrane electrode air tightness detection clamp according to claim 1, wherein the bottom surface of the lower substrate (8) is provided with supporting legs (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320834054.2U CN219798636U (en) | 2023-04-14 | 2023-04-14 | Simple membrane electrode air tightness detection clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320834054.2U CN219798636U (en) | 2023-04-14 | 2023-04-14 | Simple membrane electrode air tightness detection clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219798636U true CN219798636U (en) | 2023-10-03 |
Family
ID=88157204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320834054.2U Active CN219798636U (en) | 2023-04-14 | 2023-04-14 | Simple membrane electrode air tightness detection clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219798636U (en) |
-
2023
- 2023-04-14 CN CN202320834054.2U patent/CN219798636U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 1798, Zhonghua Garden West Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province 215300 Patentee after: Jiangsu Yanchang sanglaite new energy Co.,Ltd. Patentee after: Jiangsu Toute New Energy Co.,Ltd. Address before: No. 1798, Zhonghua Garden West Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province 215300 Patentee before: Jiangsu Yanchang sanglaite new energy Co.,Ltd. Patentee before: Jiangsu toute Intelligent Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |