CN102297752A - Cell shell leak hunting equipment and leak hunting method thereof - Google Patents

Cell shell leak hunting equipment and leak hunting method thereof Download PDF

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Publication number
CN102297752A
CN102297752A CN2011101292728A CN201110129272A CN102297752A CN 102297752 A CN102297752 A CN 102297752A CN 2011101292728 A CN2011101292728 A CN 2011101292728A CN 201110129272 A CN201110129272 A CN 201110129272A CN 102297752 A CN102297752 A CN 102297752A
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CN
China
Prior art keywords
vacuum
battery container
equipment
source
pipeline
Prior art date
Application number
CN2011101292728A
Other languages
Chinese (zh)
Inventor
过磊
张海军
赵成旺
Original Assignee
奇瑞汽车股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 奇瑞汽车股份有限公司 filed Critical 奇瑞汽车股份有限公司
Priority to CN2011101292728A priority Critical patent/CN102297752A/en
Publication of CN102297752A publication Critical patent/CN102297752A/en

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Abstract

The invention discloses cell housing leak hunting equipment and a leak hunting method thereof, and belongs to the power cell exploitation field. The leak hunting equipment comprises a sealing head and a vacuum-pumping system. A liquid injection port of a cell to be measured connects with the sealing head. The vacuum-pumping system comprises a pipeline. The sealing head connects with the pipeline. The pipeline is provided with a vacuum compression gauge. According to the invention, through employing the vacuum compression gauge to test pressure change, cell shell leak hunting sensitivity is improved, small leakage can be detected, and a qualified rate of the cell shell is guaranteed. Simultaneously, effects of simple operation, easy observation of a detection result, short leak hunting time and the like are achieved.

Description

A kind of battery container leak hunting equipment and leak detection method

Technical field

The present invention relates to the electrokinetic cell development field, particularly a kind of equipment that leaks hunting that detects the leak source after battery container welds.

Background technology

Current society at high speed development, traditional energies such as oil, coal, rock gas are exploited day by day along with people and are reduced, cleaning such as lithium ion battery, fuel cell, high capacity cell becomes and solves the environment that modern civilization faces and the effective ways of energy problem efficiently, and has been widely applied on the products such as notebook computer, video camera, digital camera, mobile phone and electric tool.

The high capacity cell housing adopts box hat mostly, and the mode closure by welding.Temperature is extremely low, air pressure is thin, under the condition of severe such as power drive as high power discharge, very high to the sealing requirements of high capacity cell housing, therefore need leak hunting to battery container.Prior art is mostly passed through battery vacuum-pumping, and whether observe then has bubble to judge the sealing of battery container in the vial that liquid is housed on the gas circuit.

In realizing process of the present invention, the inventor finds that there is following problem at least in prior art: at the leak source of battery container hour, the air-flow of generation is less, is difficult to observe the bubble that liquid produces.

Summary of the invention

The purpose of the embodiment of the invention is the defective at above-mentioned prior art, a kind of battery container leak hunting equipment and leak detection method are provided, by adopting the pressure vacuum gauge test pressure to change, improved the sensitivity that battery container leaks hunting, less leak source also can be detected.

The technical scheme taked of the present invention is to achieve these goals:

A kind of battery container equipment that leaks hunting, described equipment comprises block head and pumped vacuum systems, and the liquid injection port of mesuring battary is connected with described block head, and described block head is connected with the pipeline of described pumped vacuum systems, and described pipeline is provided with pressure vacuum gauge.

Described pumped vacuum systems specifically comprises described pipeline, vacuum source and vacuum valve switch, and described pipeline one end is connected with described block head, and the described pipeline other end is connected with described vacuum source, and described vacuum valve switch is controlled described vacuum source switch.

Further, described pumped vacuum systems also comprises air release, and described air release is located on the described pipeline.

Further, the described battery container equipment that leaks hunting also comprises the battery container holder, described battery container holder comprises following and the seat of honour, described following is provided with the battery container clamping plate, the described seat of honour is provided with cylinder, the piston rod of described cylinder is connected with described block head, and described cylinder is regulated described piston rod position by the cylinder gas circuit.

Particularly, described cylinder gas circuit comprises first air injection pipe, second air injection pipe, hand-operated direction valve and compressed air source, described first air injection pipe, one end is connected with the lower end of described cylinder, the other end is connected with described compressed air source by described hand-operated direction valve or disconnects, described second air injection pipe, one end is connected with the upper end of described cylinder, and the other end is connected with described compressed air source by described hand-operated direction valve or disconnects.

Another technical scheme provided by the invention is:

A kind of battery container leak detection method, described method mainly may further comprise the steps:

Seal the liquid injection port of mesuring battary housing with block head;

Open pumped vacuum systems, vacuumize for described mesuring battary housing;

When pressure vacuum gauge shows that negative pressure is 80-100, close described pumped vacuum systems;

Vacuum in the described mesuring battary housing is carried out pressurize 5-15S;

Observe described pressure vacuum gauge registration and whether change, judged whether leak source.

Described unlatching pumped vacuum systems is specially: open the vacuum valve switch, open vacuum source.

Described having judged whether also comprises after the leak source: open air release, discharge the vacuum in the described mesuring battary housing, take out described mesuring battary.

The beneficial effect that the technical scheme that the embodiment of the invention provides is brought is: change by adopting the pressure vacuum gauge test pressure, improved the sensitivity that battery container leaks hunting, less leak source also can be detected, guarantee the qualification rate of battery container, had effects such as simple to operate, that testing result is observed easily, the time of leaking hunting is short simultaneously.

Description of drawings

Fig. 1 is the battery container that provides in the embodiment of the invention equipment synoptic diagram that leaks hunting.

Wherein: 1, compressed air source, 2, hand-operated direction valve, 3, first air injection pipe, 4, second air injection pipe, 5, the seat of honour, 6, piston rod, 7, block head, 8, the battery container clamping plate, 9, following, 10, pressure vacuum gauge, 11, air release, 12, vacuum source, 13, the vacuum valve switch, 14, pipeline, 15, cylinder.

Embodiment

For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.

Embodiment 1

Referring to Fig. 1, the embodiment of the invention provides a kind of battery container equipment that leaks hunting, and comprises block head 7 and pumped vacuum systems.Block head 7 is connected with the liquid injection port of mesuring battary housing, and described liquid injection port is isolated from the outside, and the pipeline 14 of described pumped vacuum systems is connected with block head 7, and described liquid injection port communicates with block head 7 and described pumped vacuum systems, and pipeline 14 is provided with pressure vacuum gauge 10.

The battery container that the embodiment of the invention the provides equipment that leaks hunting, open described pumped vacuum systems when leaking hunting, vacuumize for described mesuring battary housing by block head 7, vacuumize the vacuum tightness of the described mesuring battary housing of back maintenance, observing pressure by pressure vacuum gauge changes, because pressure vacuum gauge is highly sensitive, change by adopting pressure vacuum gauge to observe pressure, improved the sensitivity that battery container leaks hunting, ensured the qualification rate of battery container, the described operation of equipment of leaking hunting is simple, testing result is observed easily, the time of leaking hunting is short.

The pressure vacuum gauge 10 that the embodiment of the invention adopts is a high precision digital display pressure vacuum gauge, and reading can be accurate to 0.01, has further guaranteed the sensitivity of leaking hunting.

Referring to Fig. 1, described pumped vacuum systems specifically comprises pipeline 14, vacuum source 12 and vacuum valve switch 13, and pipeline 14 1 ends are connected with block head 7, and pipeline 14 other ends are connected with vacuum source 12, vacuum valve switch 13 is used to control the switch of vacuum source 12, promptly controls described pumped vacuum systems and opens and closes.

The pumped vacuum systems that the embodiment of the invention provides is simple in structure, easy to operate, has saved the time of leaking hunting.

Referring to Fig. 1, described pumped vacuum systems also comprises air release 11, and air release 11 is located on the pipeline 14, and air release 11 can be arranged on the optional position of pipeline 14, and it is preferable near the position of vacuum source 12 to be arranged on pipeline 14 lower ends.Leak hunting and finish the vacuum that the back discharges in the described mesuring battary housing by air release 11, can prevent to be taken up by block head 7 under the effect of described mesuring battary negative pressure in housing, make things convenient for separating of block head 7 and described mesuring battary, thereby guaranteed the security of operation.

Referring to Fig. 1, for convenience of fixing and removing described mesuring battary housing, the battery container that the embodiment of the invention the provides equipment that leaks hunting also comprises the battery container holder.Described battery container holder comprises following 9 and the seat of honour 5, following seat 9 is provided with battery container clamping plate 8, is used for the described mesuring battary of clamping, and the seat of honour 5 is provided with cylinder 15, the piston rod 6 of cylinder 15 is connected with an end of block head 7, and cylinder 15 is by cylinder gas circuit regulating piston bar 6 positions.

Piston rod 6 moves for convenience, thereby makes the smooth shutoff of block head 7 energy or leave described liquid injection port, and described cylinder gas circuit comprises first air injection pipe 3, second air injection pipe 4, hand-operated direction valve 2 and compressed air source 1.First air injection pipe, 3 one ends are connected with the lower end of cylinder 15, the other end is connected with compressed air source 1 by hand-operated direction valve 2 or disconnects, when first air injection pipe 3 is connected with compressed air source 1, compressed air source 1 passes through first air injection pipe 3 to cylinder 15 bottom gas injections, promote piston rod 6 and move up, drive block head 7 and leave described liquid injection port; Second air injection pipe, 4 one ends are connected with the upper end of cylinder 15, the other end is connected with compressed air source 1 by hand-operated direction valve 2 or disconnects, when second air injection pipe 4 is connected with compressed air source 1, compressed air source 1 passes through second air injection pipe 4 to cylinder 15 top gas injections, promote piston rod 6 and move down, move downward the described liquid injection port of shutoff thereby drive block head 7.

Embodiment 2

The battery container equipment of leaking hunting that the embodiment of the invention provides a kind of embodiment of utilization 1 to provide carries out the method that battery container leaks hunting, and described method mainly may further comprise the steps:

Referring to Fig. 1, seal the liquid injection port of mesuring battary housing with block head 7;

Open pumped vacuum systems, vacuumize for described mesuring battary housing;

When pressure vacuum gauge 10 shows that negative pressure is 80-100, close described pumped vacuum systems;

Vacuum in the described mesuring battary housing is carried out pressurize 5-15S;

Observe pressure vacuum gauge 10 registrations and whether change, judged whether leak source.During observation, if pressure vacuum gauge 10 registrations descend, then expression has gas to enter in the described mesuring battary housing from the external world, and promptly described mesuring battary housing has leak source, if registration is constant, then represents no leak source, and described mesuring battary housing is qualified.

Described unlatching pumped vacuum systems is specially: open vacuum valve switch 13, open vacuum source 12.

Described having judged whether also comprises after the leak source: open air release 11, discharge the vacuum in the described mesuring battary housing.

After discharging vacuum, start hand-operated direction valve 2, make compressed air source 1 by first air injection pipe 3 gas injection in cylinder 15, thereby piston rod 6 is moved up, make block head 7 leave described mesuring battary housing, take out described mesuring battary.

The battery container leak detection method that the embodiment of the invention provides, open described pumped vacuum systems when leaking hunting, vacuumize for described mesuring battary housing by block head 7, vacuumize the vacuum tightness of the described mesuring battary housing of back maintenance, observing pressure by pressure vacuum gauge changes, because pressure vacuum gauge is highly sensitive, change by adopting pressure vacuum gauge to observe pressure, improved the sensitivity that battery container leaks hunting, ensure the qualification rate of battery container, had beneficial effects such as simple to operate, that testing result is observed easily, the time of leaking hunting is short simultaneously.

The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (8)

1. battery container equipment that leaks hunting, it is characterized in that described equipment comprises block head and pumped vacuum systems, the liquid injection port of mesuring battary is connected with described block head, described block head is connected with the pipeline of described pumped vacuum systems, and described pipeline is provided with pressure vacuum gauge.
2. the battery container according to claim 1 equipment that leaks hunting, it is characterized in that, described pumped vacuum systems specifically comprises described pipeline, vacuum source and vacuum valve switch, described pipeline one end is connected with described block head, the described pipeline other end is connected with described vacuum source, and described vacuum valve switch is controlled described vacuum source switch.
3. the battery container according to claim 2 equipment that leaks hunting is characterized in that described pumped vacuum systems also comprises air release, and described air release is located on the described pipeline.
4. the battery container according to claim 1 equipment that leaks hunting, it is characterized in that, the described battery container equipment that leaks hunting also comprises the battery container holder, described battery container holder comprises following and the seat of honour, described following is provided with the battery container clamping plate, the described seat of honour is provided with cylinder, and the piston rod of described cylinder is connected with described block head, and described cylinder is regulated described piston rod position by the cylinder gas circuit.
5. the battery container according to claim 4 equipment that leaks hunting, it is characterized in that, described cylinder gas circuit comprises first air injection pipe, second air injection pipe, hand-operated direction valve and compressed air source, described first air injection pipe, one end is connected with the lower end of described cylinder, the other end is connected with described compressed air source by described hand-operated direction valve or disconnects, described second air injection pipe, one end is connected with the upper end of described cylinder, and the other end is connected with described compressed air source by described hand-operated direction valve or disconnects.
6. a battery container leak detection method is characterized in that, described method mainly may further comprise the steps:
Seal the liquid injection port of mesuring battary housing with block head;
Open pumped vacuum systems, vacuumize for described mesuring battary housing;
When pressure vacuum gauge shows that negative pressure is 80-100, close described pumped vacuum systems;
Vacuum in the described mesuring battary housing is carried out pressurize 5-15S;
Observe described pressure vacuum gauge registration and whether change, judged whether leak source.
7. battery container leak detection method according to claim 6 is characterized in that, described unlatching pumped vacuum systems is specially: open the vacuum valve switch, open vacuum source.
8. battery container leak detection method according to claim 7 is characterized in that, described having judged whether also comprises after the leak source: open air release, discharge the vacuum in the described mesuring battary housing, take out described mesuring battary.
CN2011101292728A 2011-05-18 2011-05-18 Cell shell leak hunting equipment and leak hunting method thereof CN102297752A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102607782A (en) * 2012-03-20 2012-07-25 江苏欧翔机车有限公司 Air tightness detecting equipment of engine cylinder head
CN102735407A (en) * 2012-06-28 2012-10-17 奇瑞汽车股份有限公司 Equipment and method of detecting sealability of lithium ion battery
CN102865976A (en) * 2012-09-14 2013-01-09 北京理工大学 Method for detecting electrolyte leakage of battery tank and monitoring device using same
CN102944366A (en) * 2012-11-07 2013-02-27 北京伏尔特技术有限公司 Ventilation window filter leak tightness test method
CN103234714A (en) * 2013-03-22 2013-08-07 奇瑞汽车股份有限公司 Tightness detection unit and method for large-capacity power lithium ion explosion-proof valve
CN103512712A (en) * 2012-06-29 2014-01-15 新普科技股份有限公司 Battery quality detecting device and method
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
CN104964814A (en) * 2015-06-18 2015-10-07 柳州市通顺汽车部件有限责任公司 Water tank cover pressure-release value detection device and detection method
CN105319021A (en) * 2015-10-30 2016-02-10 北京新能源汽车股份有限公司 Battery pack seal detection method and system
CN106441744A (en) * 2016-12-13 2017-02-22 力信(江苏)能源科技有限责任公司 Leakage checking device of lithium ion square power battery and leakage checking process of leakage checking device
CN108691005A (en) * 2017-04-07 2018-10-23 台湾先进系统股份有限公司 The leak detection method and device of electroplate jig suitable for full frame conduction
CN109211491A (en) * 2018-10-11 2019-01-15 湖南华天光电惯导技术有限公司 A method of examining laser gyro air-tightness

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4825198A (en) * 1987-03-16 1989-04-25 G. Kromschroder Aktiengesellschaft Method of and apparatus for testing the tightnesses of two valves arranged in a fluid line
US6167749B1 (en) * 1997-09-17 2001-01-02 Yamaha Corporation Method and apparatus for automatically detecting gas leak, and recording medium for leak detection
CN2483707Y (en) * 2001-07-09 2002-03-27 北大先行科技产业有限公司 Gas leakage hunting apparatus
CN101334347A (en) * 2008-06-10 2008-12-31 上海蓝蔚科技发展有限公司 Fuel cell polar plate vacuum leak detection instrument and its leak detection method
CN101881689A (en) * 2010-06-30 2010-11-10 奇瑞汽车股份有限公司 Large-capacity power lithium-ion battery sealing-performance testing equipment and test method thereof
CN102032384A (en) * 2010-09-10 2011-04-27 西安航天远征流体控制股份有限公司 Pneumatic pulse valve capable of continuously and automatically opening and closing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4825198A (en) * 1987-03-16 1989-04-25 G. Kromschroder Aktiengesellschaft Method of and apparatus for testing the tightnesses of two valves arranged in a fluid line
US6167749B1 (en) * 1997-09-17 2001-01-02 Yamaha Corporation Method and apparatus for automatically detecting gas leak, and recording medium for leak detection
CN2483707Y (en) * 2001-07-09 2002-03-27 北大先行科技产业有限公司 Gas leakage hunting apparatus
CN101334347A (en) * 2008-06-10 2008-12-31 上海蓝蔚科技发展有限公司 Fuel cell polar plate vacuum leak detection instrument and its leak detection method
CN101881689A (en) * 2010-06-30 2010-11-10 奇瑞汽车股份有限公司 Large-capacity power lithium-ion battery sealing-performance testing equipment and test method thereof
CN102032384A (en) * 2010-09-10 2011-04-27 西安航天远征流体控制股份有限公司 Pneumatic pulse valve capable of continuously and automatically opening and closing

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102607782A (en) * 2012-03-20 2012-07-25 江苏欧翔机车有限公司 Air tightness detecting equipment of engine cylinder head
CN102735407A (en) * 2012-06-28 2012-10-17 奇瑞汽车股份有限公司 Equipment and method of detecting sealability of lithium ion battery
CN102735407B (en) * 2012-06-28 2015-06-10 奇瑞汽车股份有限公司 Equipment and method of detecting sealability of lithium ion battery
CN103512712B (en) * 2012-06-29 2016-02-10 新普科技股份有限公司 Battery quality pick-up unit and method
CN103512712A (en) * 2012-06-29 2014-01-15 新普科技股份有限公司 Battery quality detecting device and method
CN102865976A (en) * 2012-09-14 2013-01-09 北京理工大学 Method for detecting electrolyte leakage of battery tank and monitoring device using same
CN102865976B (en) * 2012-09-14 2015-04-15 北京理工大学 Method for detecting electrolyte leakage of battery tank and monitoring device using same
CN102944366B (en) * 2012-11-07 2015-12-16 北京伏尔特技术有限公司 Transom filter seal detection method
CN102944366A (en) * 2012-11-07 2013-02-27 北京伏尔特技术有限公司 Ventilation window filter leak tightness test method
CN103234714B (en) * 2013-03-22 2015-12-23 奇瑞新能源汽车技术有限公司 A kind of high-capacity dynamical lithium-ion explosion-proof valve leak-testing apparatus and detection method thereof
CN103234714A (en) * 2013-03-22 2013-08-07 奇瑞汽车股份有限公司 Tightness detection unit and method for large-capacity power lithium ion explosion-proof valve
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
CN104964814A (en) * 2015-06-18 2015-10-07 柳州市通顺汽车部件有限责任公司 Water tank cover pressure-release value detection device and detection method
CN105319021A (en) * 2015-10-30 2016-02-10 北京新能源汽车股份有限公司 Battery pack seal detection method and system
CN106441744A (en) * 2016-12-13 2017-02-22 力信(江苏)能源科技有限责任公司 Leakage checking device of lithium ion square power battery and leakage checking process of leakage checking device
CN108691005A (en) * 2017-04-07 2018-10-23 台湾先进系统股份有限公司 The leak detection method and device of electroplate jig suitable for full frame conduction
CN109211491A (en) * 2018-10-11 2019-01-15 湖南华天光电惯导技术有限公司 A method of examining laser gyro air-tightness

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