CN205538100U - Battery top cap helium leak test anchor clamps - Google Patents
Battery top cap helium leak test anchor clamps Download PDFInfo
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- CN205538100U CN205538100U CN201620287760.XU CN201620287760U CN205538100U CN 205538100 U CN205538100 U CN 205538100U CN 201620287760 U CN201620287760 U CN 201620287760U CN 205538100 U CN205538100 U CN 205538100U
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- helium
- leak test
- battery cap
- cavity
- helium leak
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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
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model belongs to the technical field of the battery helium leak test, concretely relates to battery top cap helium leak test anchor clamps, including last anchor clamps and lower anchor clamps, it has the helium fumarole to go up fixture set, and lower fixture set has the evacuation chamber, goes up anchor clamps and anchor clamps cooperation centre gripping battery top cap down, and go up during centre gripping battery top cap anchor clamps with down between the anchor clamps formation side still include the side cavity seal structure who seals into the side along the cavity airtight space along cavity, this battery top cap helium leak test anchor clamps to and and the channel of side along the cavity intercommunication. Utilize the channel to connect evacuation equipment to the cavity evacuation of offside edge reduces the pressure differential of side between along cavity and evacuation chamber, and the side that prevents to leak in permeates the evacuation chamber along the helium of cavity because of the pressure differential, or pour into the high viscosity machinery oil into along the cavity for the side through the channel, utilize the machinery oil to fill the side along the cavity for the helium is unable from the helium fumarole approaching side edge reentrant evacuation chamber of cavity when the helium leak test, improves and leaks the accuracy of examining to battery top cap helium.
Description
Technical field
This utility model belongs to battery helium leak test technical field, is specifically related to battery cap helium leak test fixture.
Background technology
Along with the enhancing of socioeconomic development Yu people's environmental consciousness, chargeable secondary cell is elected as power supply by increasing electric equipment, such as electric tool, energy storage station and electric automobile etc..This application being chargeable secondary cell provides wide space with development.Well-known, electric automobile and energy storage station etc. are it is generally required to use and have jumbo dynamic lithium battery as power supply, and its inner space needs height air-tightness, the air extraneous with isolation and moisture.So, making before finished product power current core, all manufacturers all air-tightness to the positive terminal of vital part top cover, negative terminal and the explosion-proof valve of power battery core carry out the inspection of 100%.
Helium leak test is conventional air-tightness leak detection mode, battery cap is carried out helium leak test and can use helium leak test fixture, helium leak test fixture includes fixture and lower clamp, after battery cap is clamped by upper fixture and lower clamp, top cover side, on can form gap between fixture and lower clamp, this gap is referred to as lateral edges cavity.Fixture also includes helium fumarole and evacuation chamber, installing space is saved for maximum, improve the consideration of energy density, power battery core and top cover thereof the most all design closely, especially power battery core top cover, positive terminal is removed on its coping plate, negative terminal, after explosion-proof valve and these design structures of liquid injection hole, remaining the least with sealing space when fixture and lower clamp clamping top cover, in impact fixture and lower clamp clamping top cover time sealing, make helium when helium fumarole jet helium from the contact surface approaching side edge cavity of top cover Yu upper fixture, evacuation chamber is entered again by lateral edges cavity, the degree of accuracy of impact detection.
Utility model content
The purpose of this utility model is: for the deficiencies in the prior art, it is provided that battery cap helium leak test fixture, the degree of accuracy of detection during to improve battery cap helium leak test.
To achieve these goals, this utility model adopts the following technical scheme that
Battery cap helium leak test fixture, including upper fixture and lower clamp, described upper fixture is provided with helium fumarole, described lower clamp is provided with evacuation chamber, described upper fixture coordinates clamping battery cap with described lower clamp, and forming lateral edges cavity between described upper fixture and lower clamp during clamping battery cap, this battery cap helium leak test fixture also includes the side cavities seals structure that described lateral edges cavities seals becomes confined space, and the conduit connected with described lateral edges cavity.
As a kind of improvement of battery cap helium leak test fixture described in the utility model, described conduit is evacuation conduit.Described evacuation conduit connects outside vaccum-pumping equipment, evacuation is carried out by vaccum-pumping equipment offside edge cavity, take the helium leaking into lateral edges cavity away, and the pressure differential between lateral edges cavity and evacuation chamber can be reduced, prevent the helium leaking into lateral edges cavity from penetrating into described evacuation chamber because of pressure differential, thus improve the degree of accuracy to battery cap helium missing inspection.Wherein as preferably, the best results preventing helium from leaking into evacuation chamber time consistent with the vacuum in described evacuation chamber the vacuum of described lateral edges cavity evacuation.
As a kind of improvement of battery cap helium leak test fixture described in the utility model, described conduit is fluid injection conduit.Before battery cap carries out helium leak test, first pass through described fluid injection conduit and inject high viscosity machinery oil to described lateral edges cavity, machinery oil is utilized to be filled by described lateral edges cavity, make the helium when helium leak test cannot enter back into described evacuation chamber from helium fumarole approaching side edge cavity, thus improve the degree of accuracy to battery cap helium missing inspection.After completing helium leak test, then suck back machinery oil, with recycling.
As a kind of improvement of battery cap helium leak test fixture described in the utility model, described side cavities seals structure includes O-ring seal.When described upper fixture and described lower clamp clamping battery cap, described O-ring seal is arranged between described upper fixture and described lower clamp, to seal the gap between described upper fixture and described lower clamp, even described lateral edges cavities seals becomes confined space.Wherein, described O-ring seal can be O-ring seals.
As a kind of improvement of battery cap helium leak test fixture described in the utility model, described side cavities seals structure includes seal groove.Described O-ring seal is made to be embedded in described seal groove, to improve the reliability that O-ring seal seals.
As a kind of improvement of battery cap helium leak test fixture described in the utility model, described side cavities seals structure includes metallic gasket.Coordinated with described O-ring seal by described metallic gasket, to improve the reliability that O-ring seal seals.
As a kind of improvement of battery cap helium leak test fixture described in the utility model, described helium fumarole includes that negative terminal fumarole, described evacuation chamber include negative terminal evacuation chamber.
As a kind of improvement of battery cap helium leak test fixture described in the utility model, described helium fumarole includes that explosion-proof valve fumarole, described evacuation chamber include explosion-proof valve evacuation chamber.
As a kind of improvement of battery cap helium leak test fixture described in the utility model, described helium fumarole includes that positive terminal fumarole, described evacuation chamber include positive terminal evacuation chamber.
As a kind of improvement of battery cap helium leak test fixture described in the utility model, during clamping battery cap, lower clamp is provided with projection with the contact surface of battery cap.Arranging sealing gasket between lower clamp and battery cap, so that sealing between lower clamp and battery cap, the projection being arranged on described lower clamp coordinates with sealing gasket, improves the sealing effectiveness of sealing gasket further.
The beneficial effects of the utility model are: battery cap helium leak test fixture, including upper fixture and lower clamp, described upper fixture is provided with helium fumarole, described lower clamp is provided with evacuation chamber, described upper fixture coordinates clamping battery cap with described lower clamp, and form lateral edges cavity between described upper fixture and lower clamp during clamping battery cap, this battery cap helium leak test fixture also includes the side cavities seals structure that described lateral edges cavities seals becomes confined space, and the conduit connected with described lateral edges cavity.Described conduit is utilized to connect vaccum-pumping equipment, with to described lateral edges cavity evacuation, take the helium leaking into lateral edges cavity away, and the pressure differential between lateral edges cavity and evacuation chamber can be reduced, prevent the helium leaking into lateral edges cavity from penetrating into described evacuation chamber because of pressure differential；Or, before battery cap carries out helium leak test, first pass through described conduit and inject high viscosity machinery oil to described lateral edges cavity, machinery oil is utilized to be filled by described lateral edges cavity, make the helium when helium leak test cannot enter back into described evacuation chamber from helium fumarole approaching side edge cavity, thus improve the degree of accuracy to battery cap helium missing inspection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is part A enlarged drawing in Fig. 1.
Wherein, 1, upper fixture, 11. negative terminal fumaroles, 12. explosion-proof valve fumaroles, 13. positive terminal fumaroles, 2. lower clamp, 21. negative terminal evacuation chambeies, 22. explosion-proof valve evacuation chambeies, 23. positive terminal evacuation chambeies, 24. projections, 3. battery cap, 4. lateral edges cavity, 5. conduit, 61. O-ring seals, 62. seal grooves, 7. sealing gasket.
Detailed description of the invention
Below in conjunction with detailed description of the invention and Figure of description, this utility model and beneficial effect thereof are described in further detail, but, detailed description of the invention of the present utility model is not limited thereto.
As depicted in figs. 1 and 2, battery cap helium leak test fixture, including upper fixture 1 and lower clamp 2, described upper fixture 1 is provided with helium fumarole, described lower clamp 2 is provided with evacuation chamber, described upper fixture 1 coordinates clamping battery cap 3 with described lower clamp 2, and form lateral edges cavity 4 between described upper fixture 1 and lower clamp 2 during clamping battery cap 3, this battery cap helium leak test fixture also includes the side cavities seals structure that described lateral edges cavity 4 is sealed to confined space, and the conduit 5 connected with described lateral edges cavity 4.Described side cavities seals structure includes O-ring seal 61 and seal groove 62.Described helium fumarole includes that negative terminal fumarole 11, explosion-proof valve fumarole 12 and positive terminal fumarole 13, described evacuation chamber include negative terminal evacuation chamber 21, explosion-proof valve evacuation chamber 22 and positive terminal evacuation chamber 23.During clamping battery cap 3, lower clamp 2 is provided with projection 24 with the contact surface of battery cap 3.Arranging sealing gasket 7 between lower clamp 2 and battery cap 3, so that sealing between lower clamp 2 and battery cap 3, the projection 24 being arranged on described lower clamp 2 coordinates with sealing gasket 7, improves the sealing effectiveness of sealing gasket 7 further.
Wherein, described conduit 5 is evacuation conduit or fluid injection conduit.
When described conduit 5 is evacuation conduit, described evacuation conduit is connect outside vaccum-pumping equipment, evacuation is carried out by vaccum-pumping equipment offside edge cavity 4, take away from helium fumarole (negative terminal fumarole 11, explosion-proof valve fumarole 12 and positive terminal fumarole 13) leak into the helium of lateral edges cavity 4, and lateral edges cavity 4 and (negative terminal evacuation chamber 21, evacuation chamber can be reduced, explosion-proof valve evacuation chamber 22 and positive terminal evacuation chamber 23) between pressure differential, prevent the helium leaking into lateral edges cavity 4 from penetrating into described evacuation chamber because of pressure differential, thus improve the degree of accuracy to battery cap 3 helium missing inspection.Wherein as preferably, the best results preventing helium from leaking into evacuation chamber time consistent with the vacuum in described evacuation chamber the vacuum of described lateral edges cavity 4 evacuation.
When described conduit 5 is for fluid injection conduit, before battery cap 3 carries out helium leak test, first pass through described fluid injection conduit and inject high viscosity machinery oil to described lateral edges cavity 4, machinery oil is utilized to be filled by described lateral edges cavity 4, make the helium when helium leak test cannot enter back into described evacuation chamber from helium fumarole approaching side edge cavity 4, thus improve the degree of accuracy to battery cap 3 helium missing inspection.After completing helium leak test, then suck back machinery oil, with recycling.
The announcement of book and teaching according to the above description, above-mentioned embodiment can also be changed and revise by this utility model those skilled in the art.Therefore, this utility model is not limited to above-mentioned detailed description of the invention, and any conspicuously improved, replacement or modification that every those skilled in the art are done on the basis of this utility model belong to protection domain of the present utility model.Although additionally, employ some specific terms in this specification, but these terms are merely for convenience of description, this utility model is not constituted any restriction.
Claims (10)
1. battery cap helium leak test fixture, it is characterized in that: include fixture and lower clamp, described upper fixture is provided with helium fumarole, described lower clamp is provided with evacuation chamber, described upper fixture coordinates clamping battery cap with described lower clamp, and forming lateral edges cavity between described upper fixture and lower clamp during clamping battery cap, this battery cap helium leak test fixture also includes the side cavities seals structure that described lateral edges cavities seals becomes confined space, and the conduit connected with described lateral edges cavity.
Battery cap helium leak test fixture the most according to claim 1, it is characterised in that: described conduit is evacuation conduit.
Battery cap helium leak test fixture the most according to claim 1, it is characterised in that: described conduit is fluid injection conduit.
Battery cap helium leak test fixture the most according to claim 1, it is characterised in that: described side cavities seals structure includes O-ring seal.
Battery cap helium leak test fixture the most according to claim 4, it is characterised in that: described side cavities seals structure includes seal groove.
Battery cap helium leak test fixture the most according to claim 4, it is characterised in that: described side cavities seals structure includes metallic gasket.
Battery cap helium leak test fixture the most according to claim 1, it is characterised in that: described helium fumarole includes that negative terminal fumarole, described evacuation chamber include negative terminal evacuation chamber.
Battery cap helium leak test fixture the most according to claim 1, it is characterised in that: described helium fumarole includes that explosion-proof valve fumarole, described evacuation chamber include explosion-proof valve evacuation chamber.
Battery cap helium leak test fixture the most according to claim 1, it is characterised in that: described helium fumarole includes that positive terminal fumarole, described evacuation chamber include positive terminal evacuation chamber.
Battery cap helium leak test fixture the most according to claim 1, it is characterised in that: during clamping battery cap, lower clamp is provided with projection with the contact surface of battery cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620287760.XU CN205538100U (en) | 2016-04-08 | 2016-04-08 | Battery top cap helium leak test anchor clamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620287760.XU CN205538100U (en) | 2016-04-08 | 2016-04-08 | Battery top cap helium leak test anchor clamps |
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| Publication Number | Publication Date |
|---|---|
| CN205538100U true CN205538100U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620287760.XU Active CN205538100U (en) | 2016-04-08 | 2016-04-08 | Battery top cap helium leak test anchor clamps |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894307A (en) * | 2017-12-28 | 2018-04-10 | 安徽智森电子科技有限公司 | A kind of vacuum Hai Jian mechanisms for being used to detect battery cap sealing |
| CN108237089A (en) * | 2017-12-27 | 2018-07-03 | 深圳市誉辰自动化设备有限公司 | For detecting the test system of battery aluminum shell air-tightness |
| CN108871695A (en) * | 2018-06-08 | 2018-11-23 | 合肥国轩高科动力能源有限公司 | A kind of leak-checking apparatus before lithium battery fluid injection |
| CN109186877A (en) * | 2018-08-06 | 2019-01-11 | 深圳市卓誉自动化科技有限公司 | Battery air tightness characterization processes |
| CN110492024A (en) * | 2019-08-27 | 2019-11-22 | 宁德阿李科技有限公司 | A kind of battery cap processing method |
-
2016
- 2016-04-08 CN CN201620287760.XU patent/CN205538100U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108237089A (en) * | 2017-12-27 | 2018-07-03 | 深圳市誉辰自动化设备有限公司 | For detecting the test system of battery aluminum shell air-tightness |
| CN108237089B (en) * | 2017-12-27 | 2023-09-12 | 深圳市誉辰智能装备股份有限公司 | Test system for detecting air tightness of battery aluminum shell |
| CN107894307A (en) * | 2017-12-28 | 2018-04-10 | 安徽智森电子科技有限公司 | A kind of vacuum Hai Jian mechanisms for being used to detect battery cap sealing |
| CN107894307B (en) * | 2017-12-28 | 2023-06-16 | 安徽智森电子科技有限公司 | Vacuum helium detection mechanism for detecting tightness of battery top cover |
| CN108871695A (en) * | 2018-06-08 | 2018-11-23 | 合肥国轩高科动力能源有限公司 | A kind of leak-checking apparatus before lithium battery fluid injection |
| CN108871695B (en) * | 2018-06-08 | 2021-01-29 | 合肥国轩高科动力能源有限公司 | Leakage detection device used before lithium battery liquid injection |
| CN109186877A (en) * | 2018-08-06 | 2019-01-11 | 深圳市卓誉自动化科技有限公司 | Battery air tightness characterization processes |
| CN109186877B (en) * | 2018-08-06 | 2020-06-09 | 深圳市卓誉自动化科技有限公司 | Battery air tightness detection process |
| CN110492024A (en) * | 2019-08-27 | 2019-11-22 | 宁德阿李科技有限公司 | A kind of battery cap processing method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |