CN202126345U - Air tightness testing device for power lithium ion batteries - Google Patents
Air tightness testing device for power lithium ion batteries Download PDFInfo
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- CN202126345U CN202126345U CN2011201907624U CN201120190762U CN202126345U CN 202126345 U CN202126345 U CN 202126345U CN 2011201907624 U CN2011201907624 U CN 2011201907624U CN 201120190762 U CN201120190762 U CN 201120190762U CN 202126345 U CN202126345 U CN 202126345U
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- lithium ion
- air tightness
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- testing
- type lithium
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Abstract
The utility model discloses an air tightness testing device, which aims at providing an air tightness testing device for power lithium ion batteries. The air tightness testing device for the power lithium ion batteries can accurately and quickly test the air tightness of batteries and test the batteries with different specifications under the condition that the performance and appearance structures of the batteries are not influenced. The air tightness testing device for the power lithium ion batteries comprises a base (1), a battery position clamp (2) arranged on the base (1), a support (3) standing on the base (1), a testing mechanism (4) and a controller arranged on the periphery of the base (1). The testing mechanism (4) is arranged on the support (3). The testing mechanism (4) and the battery position clamp (2) are both electrically connected with the controller. The air tightness testing device for the power lithium ion batteries can be widely applied to the field of air tightness tests for the batteries in production process of the power batteries.
Description
Technical field
The utility model relates to a kind of power-type lithium ion battery air tightness test device.
Background technology
Power-type lithium ion battery encapsulates the back and uses under vacuum state, shown in Figure 1 be lithium-ion-power cell 8 structural representation, lithium ion battery generally is to adopt the form of welding to encapsulate.Impermeability well is power-type lithium ion battery operate as normal and the basic demand that can recycle for a long time.If power-type lithium ion battery encapsulation is airtight inadequately, its internal environment will directly contact with atmospheric environment, so that moisture entering inside battery and react with the electrolytic solution sounding.In addition on the one hand, the solvent composition in the electrolytic solution is the effumability material too, if encapsulate badly, is prone to cause electrolytic solution dry or leak, and also can cause battery capacity and cycle charging number of times to reduce, so must carry out air tightness test to power-type lithium ion.Traditional power-type lithium ion battery air tightness test generally is to adopt bubbling method or differential pressure method, and wherein bubbling method need be put into water with mesuring battary, and differential pressure method need pour inert gas in the mesuring battary.The former destroys the environment of inside battery easily, and the latter can cause the cell expansion distortion.Therefore, under the prerequisite of performance that does not influence power-type lithium ion battery and surface structure, the impermeability of how accurately to test lithium-ion-power cell fast becomes problem demanding prompt solution in the lithium-ion-power cell production run.
In addition, a kind of battery is tested in a traditional battery air tightness test proving installation often, can not accomplish that a proving installation tests multiple battery simultaneously, and this causes certain wasting of resources and has increased equipment cost.
The utility model content
The utility model technical matters to be solved is the deficiency that overcomes prior art; Provide a kind of under the situation that does not influence battery performance and surface structure, can be accurately test battery impermeability and can test the power-type lithium ion battery air tightness test device of various different size batteries fast.
The technical scheme that the utility model adopted is: the utility model comprises base, be arranged at battery in place anchor clamps on the said base, stand on the support on the said base; Said power-type lithium ion battery air tightness test device also includes mechanism for testing and peripheral controller; Said mechanism for testing comprises vacuum chamber, is communicated with test barrel, pressure transducer and the vacuum source of mesuring battary and said vacuum chamber; Said vacuum source vacuumizes said vacuum chamber; Said mechanism for testing is arranged on the said support, and said mechanism for testing, said battery in place anchor clamps all are electrically connected with said controller.
The downside of said test barrel and said mesuring battary touching position are provided with O-ring seal.
Said battery in place anchor clamps comprise prelocalization baffle plate, preceding control cylinder, side positioning baffle, side control cylinder, back positioning baffle and back control cylinder; Said prelocalization baffle plate is arranged on the output shaft of said preceding control cylinder; Said side positioning baffle is arranged on the output shaft of said side control cylinder, and said back positioning baffle is arranged on the output shaft of said back control cylinder.
Said pressure transducer is arranged on the inwall of said test barrel.
Be provided with baffle plate in the said vacuum chamber, said baffle plate is divided into the test chamber of bottom and the source of the gas chamber on top with said vacuum chamber, and said test barrel is connected with said test chamber, and said vacuum source is connected with said source of the gas chamber.
Said mechanism for testing also comprises Air-tight piston and the Air-tight piston cylinder that matches with said baffle plate, and said Air-tight piston is arranged in the said Air-tight piston cylinder and is in the said source of the gas chamber.
Also be provided with vertical control device on the said support; Said vertical control device comprises sealing cylinder guide rail and sealing cylinder; Said sealing cylinder guide rail matches with said sealing cylinder; Said mechanism for testing is arranged on the said vertical control device, and said vertical control device is electrically connected with said controller mutually.
The beneficial effect of the utility model is: because the utility model comprises base, is arranged at battery in place anchor clamps on the said base, stands on the support on the said base; Said power-type lithium ion battery air tightness test device also includes mechanism for testing and peripheral controller; Said mechanism for testing comprises vacuum chamber, is communicated with test barrel, pressure transducer and the vacuum source of mesuring battary and said vacuum chamber, and said vacuum source vacuumizes said vacuum chamber, and said mechanism for testing is arranged on the said support; Said mechanism for testing, said battery in place anchor clamps all are electrically connected with said controller; So the utility model need not destroy the inner structure of battery, directly can test from the outside surface of battery the impermeability of battery; Can not produce any influence to the performance and the surface structure of battery; And can test the impermeability of battery rapidly and accurately, utilize controller to control the battery in place anchor clamps and come mesuring battary is positioned, can satisfy the test of different specification of battery.
Owing to also be provided with vertical control device on the said support; Said vertical control device comprises sealing cylinder guide rail and sealing cylinder, and said sealing cylinder guide rail matches with said sealing cylinder, and said mechanism for testing is arranged on the said vertical control device; Said vertical control device is electrically connected with said controller mutually; This just makes can improve test automation widely in the bubble-tight process of test battery, also make test more accurately fast.
Description of drawings
Fig. 1 is the structural representation of electrokinetic cell;
Fig. 2 is the structural representation of the utility model;
Fig. 3 is the cut-open view of said mechanism for testing;
Fig. 4 is the structural representation of said battery in place anchor clamps.
Embodiment
Like Fig. 2, shown in Figure 3, the utility model comprises base 1, be arranged at battery in place anchor clamps 2 on the said base 1, stand on the support 3 on the said base 1.Said power-type lithium ion battery air tightness test device also includes mechanism for testing 4 and peripheral controller; Said mechanism for testing 4 comprises vacuum chamber 41, is communicated with test barrel 42, pressure transducer 43 and the vacuum source 44 of mesuring battary 8 and said vacuum chamber 41; 44 pairs of said vacuum chambers 41 of said vacuum source vacuumize, and said mechanism for testing 4 is arranged on the said support 3.Said pressure transducer 43 is arranged on the inwall of said test barrel 42.As shown in Figure 4; Said battery in place anchor clamps 2 comprise prelocalization baffle plate 21, preceding control cylinder 22, side positioning baffle 23, side control cylinder 24, back positioning baffle 25 and back control cylinder 26; Said prelocalization baffle plate 21 is arranged on the output shaft of said preceding control cylinder 22; Said side positioning baffle 23 is arranged on the output shaft of said side control cylinder 24, and said back positioning baffle 25 is arranged on the output shaft of said back control cylinder 26.Said prelocalization baffle plate 21 is set to the L template.Said mechanism for testing 4, said battery in place anchor clamps 2 all are electrically connected with said controller.Be provided with baffle plate 411 in the said vacuum chamber 41, said baffle plate 411 is divided into the test chamber 412 of bottom and the source of the gas chamber 413 on top with said vacuum chamber 41, and said test barrel 42 is connected with said test chamber 412, and said vacuum source 44 is connected with said source of the gas chamber 413.The downside of said test barrel 42 and said mesuring battary touching position are provided with O-ring seal 5, and the impermeability that this has guaranteed proving installation itself has guaranteed can not have influence on test result because of the impermeability problem of proving installation self in the test process.Said mechanism for testing 4 also comprises the Air-tight piston 6 and Air-tight piston cylinder 7 that matches with said baffle plate 411, and said Air-tight piston 6 is arranged in the said Air-tight piston cylinder 7 and is in the said source of the gas chamber 413.
Also be provided with vertical control device on the said support 3; Said vertical control device comprises sealing cylinder guide rail 31 and sealing cylinder 32; Said sealing cylinder guide rail 31 matches with said sealing cylinder 32; Said mechanism for testing 4 is arranged on the said vertical control device, and said vertical control device is electrically connected with said controller mutually.
When power-type lithium ion battery is tested; Mesuring battary is placed on the said base 1; Said controller is to the control that links of said battery in place anchor clamps 2 and said vertical control device; Instrument connection on mesuring battary 8 is realized the accurate location of mesuring battary with after said test barrel 42 is aimed at.It is descending that said vertical control device is controlled said mechanism for testing 4, and said O-ring seal 5 is connected with the instrument connection of mesuring battary 8 tops, and the inside of mesuring battary promptly is isolated from the outside.Said vacuum source 44 is opened, and makes mesuring battary inside reach vacuum state through the regular hour.Said pressure transducer 43 is measured force value and is transferred on the said controller, and said controller is according to the qualified vacuum values scope of setting, and whether sealing is good to judge mesuring battary for the first time.The said Air-tight piston 6 of said Air-tight piston cylinder 7 promotions comes downwards to said baffle plate 411 and matches; Thereby vacuum source 44 and mesuring battary, said pressure transducer 5 are isolated; Said vacuum source 44 stops action and leaves standstill the mesuring battary certain hour; With the internal environment of balance mesuring battary, get into packing state afterwards.Said pressure transducer 43 is a benchmark with the inner vacuum tightness of mesuring battary this moment; Test the variation of mesuring battary internal pressure between hold period; And with the said controller of test result transmission meeting, controller judges whether the impermeability of mesuring battary is good for the second time according to the pressure parameter scope of setting.According to above-mentioned twice pressure test, confirm the impermeability of mesuring battary.
The utility model can be widely used in battery air tightness field tests in the electrokinetic cell production run.
Claims (7)
1. power-type lithium ion battery air tightness test device; Comprise base (1), be arranged at battery in place anchor clamps (2) on the said base (1), stand on the support (3) on the said base (1); It is characterized in that: said power-type lithium ion battery air tightness test device also includes mechanism for testing (4) and peripheral controller; Said mechanism for testing (4) comprises vacuum chamber (41), is communicated with test barrel (42), pressure transducer (43) and the vacuum source (44) of mesuring battary and said vacuum chamber (41); Said vacuum source (44) vacuumizes said vacuum chamber (41); Said mechanism for testing (4) is arranged on the said support (3), and said mechanism for testing (4), said battery in place anchor clamps (2) all are electrically connected with said controller.
2. power-type lithium ion battery air tightness test device according to claim 1 is characterized in that: the downside of said test barrel (42) and said mesuring battary touching position are provided with O-ring seal (5).
3. power-type lithium ion battery air tightness test device according to claim 1; It is characterized in that: said battery in place anchor clamps (2) comprise prelocalization baffle plate (21), preceding control cylinder (22), side positioning baffle (23), side control cylinder (24), back positioning baffle (25) and back control cylinder (26); Said prelocalization baffle plate (21) is arranged on the output shaft of said preceding control cylinder (22); Said side positioning baffle (23) is arranged on the output shaft of said side control cylinder (24), and said back positioning baffle (25) is arranged on the output shaft of said back control cylinder (26).
4. power-type lithium ion battery air tightness test device according to claim 1 is characterized in that: said pressure transducer (43) is arranged on the inwall of said test barrel (42).
5. power-type lithium ion battery air tightness test device according to claim 1; It is characterized in that: be provided with baffle plate (411) in the said vacuum chamber (41); Said baffle plate (411) is divided into the test chamber (412) of bottom and the source of the gas chamber (413) on top with said vacuum chamber (41); Said test barrel (42) is connected with said test chamber (412), and said vacuum source (44) is connected with said source of the gas chamber (413).
6. power-type lithium ion battery air tightness test device according to claim 5; It is characterized in that: said mechanism for testing (4) also comprises Air-tight piston (6) and the Air-tight piston cylinder (7) that matches with said baffle plate (411), and said Air-tight piston (6) is arranged in the said Air-tight piston cylinder (7) and is in the said source of the gas chamber (413).
7. power-type lithium ion battery air tightness test device according to claim 5; It is characterized in that: said support also is provided with vertical control device on (3); Said vertical control device comprises sealing cylinder guide rail (31) and sealing cylinder (32); Said sealing cylinder guide rail (31) matches with said sealing cylinder (32), and said mechanism for testing (4) is arranged on the said vertical control device, and said vertical control device is electrically connected with said controller mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201907624U CN202126345U (en) | 2011-06-08 | 2011-06-08 | Air tightness testing device for power lithium ion batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201907624U CN202126345U (en) | 2011-06-08 | 2011-06-08 | Air tightness testing device for power lithium ion batteries |
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| Publication Number | Publication Date |
|---|---|
| CN202126345U true CN202126345U (en) | 2012-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201907624U Expired - Fee Related CN202126345U (en) | 2011-06-08 | 2011-06-08 | Air tightness testing device for power lithium ion batteries |
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| CN (1) | CN202126345U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528764A (en) * | 2013-10-17 | 2014-01-22 | 奇瑞汽车股份有限公司 | System for measuring leakage of anti-explosion valve and pole of lithium ion battery |
| CN103776593A (en) * | 2014-02-13 | 2014-05-07 | 江苏博众汽车部件有限公司 | Automatic and quick airtightness detection device |
| CN104075859A (en) * | 2014-06-26 | 2014-10-01 | 深圳市瑞必达科技有限公司 | Switching mode power supply waterproof tester and testing method of switching mode power supply waterproof tester |
| CN104175251A (en) * | 2014-07-21 | 2014-12-03 | 芜湖恒坤汽车部件有限公司 | Air-tightness detection fixture for brake wheel cylinder |
| CN106092465A (en) * | 2016-07-05 | 2016-11-09 | 深圳市铂纳特斯自动化科技有限公司 | The automatic air leak tester of rectangular cell |
| CN106153267A (en) * | 2016-08-21 | 2016-11-23 | 南京国轩电池有限公司 | A kind of filling machine fixture air tightness detection apparatus and detection method thereof |
| CN109186883A (en) * | 2018-09-19 | 2019-01-11 | 南京国轩电池有限公司 | A kind of rectangular lithium ion battery air tightness detecting system and method |
-
2011
- 2011-06-08 CN CN2011201907624U patent/CN202126345U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528764A (en) * | 2013-10-17 | 2014-01-22 | 奇瑞汽车股份有限公司 | System for measuring leakage of anti-explosion valve and pole of lithium ion battery |
| CN103776593A (en) * | 2014-02-13 | 2014-05-07 | 江苏博众汽车部件有限公司 | Automatic and quick airtightness detection device |
| CN104075859A (en) * | 2014-06-26 | 2014-10-01 | 深圳市瑞必达科技有限公司 | Switching mode power supply waterproof tester and testing method of switching mode power supply waterproof tester |
| CN104175251A (en) * | 2014-07-21 | 2014-12-03 | 芜湖恒坤汽车部件有限公司 | Air-tightness detection fixture for brake wheel cylinder |
| CN106092465A (en) * | 2016-07-05 | 2016-11-09 | 深圳市铂纳特斯自动化科技有限公司 | The automatic air leak tester of rectangular cell |
| CN106153267A (en) * | 2016-08-21 | 2016-11-23 | 南京国轩电池有限公司 | A kind of filling machine fixture air tightness detection apparatus and detection method thereof |
| CN109186883A (en) * | 2018-09-19 | 2019-01-11 | 南京国轩电池有限公司 | A kind of rectangular lithium ion battery air tightness detecting system and method |
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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: 20120125 Termination date: 20140608 |