CN2886534Y - Clamp dedicated for testing airtightness of bi-polar plate material - Google Patents
Clamp dedicated for testing airtightness of bi-polar plate material Download PDFInfo
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- CN2886534Y CN2886534Y CN 200620069307 CN200620069307U CN2886534Y CN 2886534 Y CN2886534 Y CN 2886534Y CN 200620069307 CN200620069307 CN 200620069307 CN 200620069307 U CN200620069307 U CN 200620069307U CN 2886534 Y CN2886534 Y CN 2886534Y
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Abstract
The utility model discloses a specific clamp for testing the air-tightness of bipolar board material, comprising an upper clip and a lower clip, wherein a sealing strip corresponding to the edge of the flat under test is arranged on the upper clip and the lower clip to prevent the testing air from leaking out of the flat edge, a first passage piercing the upper clip is provided on the upper clip, a second passage piercing the lower clip is provided on the lower clip. One passage is the air passage for injecting testing air, and the other passage is the testing passage for measuring the flow rate of the escaped air. The clamp effectively lowers the testing cost, different materials can be made into flats of the same shape and size for testing, in this way not only the testing is more convenient but also the testing data comparison is more objective and accurate; the testing pressure can be adjusted to adapt to the air-tightness testing demand of the bipolar board material under different working pressures, thereby the accuracy of the testing data is improved.
Description
One, technical field
The utility model relates to a kind of anchor clamps, a kind of specifically unit clamp of testing airtightness of bipolar plate material.
Two, background technology
Proton Exchange Membrane Fuel Cells is a kind of device that produces electric energy by the electrochemical reaction of fuel and oxygenant.The core component of this device is membrane electrode (Membrane Electrode Assembly is called for short MEA), is made up of two porous conductive materials and a slice PEM that is clipped in the middle.On the interface of PEM and conductive material (as carbon paper), be attached with electrochemical catalyst.Another vitals of Proton Exchange Membrane Fuel Cells is a bipolar plates.But contain the passage of supplied gas (as hydrogen or air) circulation and the passage of cooling medium (as air or water) circulation on the bipolar plates.The one side that bipolar plates has the gas stream passage contacts with membrane electrode, and forms a relative sealed space jointly with membrane electrode.
When hydrogen is entered the space that bipolar plates and membrane electrode form by the hydrogen inlet of fuel cell pack after, see through the surface that porous conductive material (as carbon paper) arrives catalyzer.Under the effect of catalyzer, hydrogen generation electrochemical reaction, hydrogen atom loses electronics becomes positive ion (proton).Electronics arrives electrical appliance by porous conductive material (as carbon paper) and conductive bipolar plate, arrives the catalyst surface of membrane electrode opposite side again by conductive bipolar plate and porous conductive material (as carbon paper).Under the effect of catalyzer, electronics with see through porous conductive material (as carbon paper) and arrive the oxygenant (as oxygen) of catalyst surface and arrive the proton generation electrochemical reaction of catalyst surface, reaction of formation product by PEM.
In Proton Exchange Membrane Fuel Cells, the both sides of membrane electrode are bipolar plates.A gas flow guiding groove is contained on the surface of bipolar plates at least, and diversion trench provides the passage that arrives membrane electrode for the gas of participating in electrode reaction.The reaction product that produces in reaction (as water) is discharged pile by the gas flow guiding groove.Out of pile is taken the heat that produces in the reaction in cooling duct in heat eliminating medium (as air or the water) bipolar plates of flowing through.Bipolar plates is formed through mold pressing, punching press or mechanical engraving by conductive material, for the circulation of electronics provides passage.Bipolar plates has certain intensity, for membrane electrode provides support.Bipolar plates has certain impermeability, and the encapsulant between bipolar plates, membrane electrode and bipolar plates and the membrane electrode separates fuel and the oxygenant of participating in reaction.
The impermeability of bipolar plates is very crucial to Proton Exchange Membrane Fuel Cells.Bipolar plates stops fuel and oxygenant to mix in fuel cell pack on the one hand, stops hydrogen fuel to be leaked to the outside on the other hand from fuel cell pack.In Proton Exchange Membrane Fuel Cells, fuel is to react in different conversion zones with oxygenant.If fuel and oxygenant mix in fuel cell pack, then by outside electrical appliance, the efficient of fuel cell will not reduce the electron exchange in the reaction.Reaction velocity when fuel and oxygenant mix is uncontrollable, can discharge a large amount of heats at short notice, causes burning or blast.If fuel losses to the outside of fuel cell, then not only can reduce the efficient of fuel cell, in case and fuel when concentration reaches explosion limits in extraneous subrange, will blast.In existing fuel cell manufacture craft, the impermeability of bipolar plates is in the test of fuel cell pack assembling advancing row.This has controlled the quality of fuel cell pack to a certain extent, but exists following defective:
(1) if find it is that then all bipolar plates of having produced all can not be used owing to the bad bipolar plates that causes of impermeability that bipolar plate material causes can't be used, lose greatlyyer, and can't remedy.
(2) pile of testing under certain gaseous tension that bipolar plates was assembled into can't guarantee still have good impermeability under another different gaseous tension.
In order to test the impermeability of different materials, and take into account the requirement of testing cost, different materials can be made the flat board of same geomery tests in having bubble-tight anchor clamps, it not only makes test more convenient, also make the contrast of test data more objective and accurate, and also do not have such anchor clamps to occur at present.
Three, summary of the invention
1, goal of the invention: the purpose of this utility model is the unit clamp that a kind of simple in structure, practical test fuel cell airtightness of bipolar plate material is provided in order to overcome above-mentioned defective.
2, technical scheme: the purpose of this utility model is to be achieved through the following technical solutions above-mentioned purpose:
A kind of unit clamp of testing airtightness of bipolar plate material, it comprises train wheel bridge and lower plate, the edge of flat board corresponding to be tested is provided with sealing strip on train wheel bridge and lower plate, be used to prevent that test gas from going out from the ovfl of flat board, on train wheel bridge, be provided with the first passage that connects train wheel bridge, on lower plate, be provided with the second channel that connects lower plate.
Scheme be with first passage as the gas passage that is used to inject test gas, second channel is as the test channel of the flow velocity that is used to measure emergent gas.Another scheme is then opposite, and with the test channel of first passage as the flow velocity that is used to measure emergent gas, second channel is as the gas passage that is used to inject test gas.In gas passage, inject test gas, the flow velocity of using gases flowmeter survey emergent gas in test channel.
3, beneficial effect: the present invention compared with prior art has the following advantages: (1) tests its air-tightness after need not bipolar plate material is processed into the bipolar plates finished product again, and very high and waste product is difficult to reclaim because of the bipolar plates manufacturing cost, so effectively reduce cost; (2) the different material flat board of all making same geomery is tested, and not only makes test more convenient, also makes the contrast of test data more objective and accurate; (3) pressure of the test gas of Zhu Ruing can in very large range be regulated, to adapt to the air tightness test requirement of bipolar plate material under the different operating pressure, relative and existing bipolar plates must be made finished product and test under fixed pressure, has improved the accuracy of test data; (4) this unit clamp is simple in structure, and is easy to use.
Four, description of drawings:
Fig. 1 structural representation of the present utility model.
Five, embodiment
As shown in Figure 1, a kind of unit clamp of testing airtightness of bipolar plate material described in the utility model, it comprises train wheel bridge 1 and lower plate 2, corresponding flat board 3 to be tested is provided with sealing strip 4 on train wheel bridge 1 and lower plate 2, on train wheel bridge 1, be provided with the first passage 5 that connects train wheel bridge 1, on lower plate 2, be provided with the second channel 6 that connects lower plate 2.First passage 5 is the gas passages that are used to inject test gas in this enforcement, and second channel 6 is the test channel that are used to measure the flow velocity of emergent gas.Certainly, first passage 5 also can be as test channel, and second channel 6 is then corresponding to gas passage.
Claims (3)
1, a kind of unit clamp of testing airtightness of bipolar plate material, it is characterized in that it comprises train wheel bridge (1) and lower plate (2), on train wheel bridge (1) and lower plate (2), sealing strip (4) is set, on train wheel bridge (1), be provided with the first passage (5) that connects train wheel bridge (1), on lower plate (2), be provided with the second channel (6) that connects lower plate (2).
2, a kind of unit clamp of testing airtightness of bipolar plate material according to claim 1 is characterized in that first passage (5) is a gas passage, and second channel (6) is a test channel.
3, a kind of unit clamp of testing airtightness of bipolar plate material according to claim 1 is characterized in that first passage (5) is a test channel, and second channel (6) is a gas passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620069307 CN2886534Y (en) | 2006-02-15 | 2006-02-15 | Clamp dedicated for testing airtightness of bi-polar plate material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620069307 CN2886534Y (en) | 2006-02-15 | 2006-02-15 | Clamp dedicated for testing airtightness of bi-polar plate material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2886534Y true CN2886534Y (en) | 2007-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620069307 Expired - Fee Related CN2886534Y (en) | 2006-02-15 | 2006-02-15 | Clamp dedicated for testing airtightness of bi-polar plate material |
Country Status (1)
| Country | Link |
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| CN (1) | CN2886534Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087161A (en) * | 2010-11-25 | 2011-06-08 | 新源动力股份有限公司 | Water jacket tightness detection device and method for bipolar plate of fuel cell |
| CN103245465A (en) * | 2013-04-10 | 2013-08-14 | 奇瑞汽车股份有限公司 | Special tool for water tightness test of automotive foam and testing method |
| CN106197880A (en) * | 2016-08-25 | 2016-12-07 | 宁波蓝鲸自动化科技有限公司 | Air tightness detection equipment |
| CN107543942A (en) * | 2017-08-18 | 2018-01-05 | 浙江科技学院（浙江中德科技促进中心） | The test fixture and method of testing of membrane electrode |
| CN108281719A (en) * | 2017-12-29 | 2018-07-13 | 上海神力科技有限公司 | A kind of graphite bi-polar plate air-tightness detection device |
| CN108548642A (en) * | 2018-04-03 | 2018-09-18 | 武汉轻工大学 | A kind of leak detection air supply plant and Proton Exchange Membrane Fuel Cells component leak test plant |
| CN109813507A (en) * | 2019-01-30 | 2019-05-28 | 无锡格林司通自动化设备有限公司 | A kind of flexible-packed battery leak test method and mechanism |
-
2006
- 2006-02-15 CN CN 200620069307 patent/CN2886534Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087161A (en) * | 2010-11-25 | 2011-06-08 | 新源动力股份有限公司 | Water jacket tightness detection device and method for bipolar plate of fuel cell |
| CN102087161B (en) * | 2010-11-25 | 2012-09-12 | 新源动力股份有限公司 | Water jacket tightness detection device and method for bipolar plate of fuel cell |
| CN103245465A (en) * | 2013-04-10 | 2013-08-14 | 奇瑞汽车股份有限公司 | Special tool for water tightness test of automotive foam and testing method |
| CN106197880A (en) * | 2016-08-25 | 2016-12-07 | 宁波蓝鲸自动化科技有限公司 | Air tightness detection equipment |
| CN106197880B (en) * | 2016-08-25 | 2019-02-26 | 宁波蓝鲸自动化科技有限公司 | Air tightness detection equipment |
| CN107543942A (en) * | 2017-08-18 | 2018-01-05 | 浙江科技学院（浙江中德科技促进中心） | The test fixture and method of testing of membrane electrode |
| CN107543942B (en) * | 2017-08-18 | 2024-04-12 | 浙江科技学院（浙江中德科技促进中心） | Test fixture and test method for membrane electrode |
| CN108281719A (en) * | 2017-12-29 | 2018-07-13 | 上海神力科技有限公司 | A kind of graphite bi-polar plate air-tightness detection device |
| CN108548642A (en) * | 2018-04-03 | 2018-09-18 | 武汉轻工大学 | A kind of leak detection air supply plant and Proton Exchange Membrane Fuel Cells component leak test plant |
| CN109813507A (en) * | 2019-01-30 | 2019-05-28 | 无锡格林司通自动化设备有限公司 | A kind of flexible-packed battery leak test method and mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070404 |