CN103234714B - A kind of high-capacity dynamical lithium-ion explosion-proof valve leak-testing apparatus and detection method thereof - Google Patents

A kind of high-capacity dynamical lithium-ion explosion-proof valve leak-testing apparatus and detection method thereof Download PDF

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Publication number
CN103234714B
CN103234714B CN201310094777.4A CN201310094777A CN103234714B CN 103234714 B CN103234714 B CN 103234714B CN 201310094777 A CN201310094777 A CN 201310094777A CN 103234714 B CN103234714 B CN 103234714B
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explosion
proof valve
link
seal chamber
testing
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CN201310094777.4A
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Chinese (zh)
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CN103234714A (en
Inventor
吴建华
高锋柱
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奇瑞新能源汽车技术有限公司
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Abstract

The present invention relates to a kind of high-capacity dynamical lithium-ion explosion-proof valve leak-testing apparatus and detection method thereof, comprise plant bottom case, detecting and controlling system, lift cylinder, seal chamber, explosion-proof valve, connecting link and compressed gas source, wherein, described lift cylinder connects connecting link, and moves up and down for control linkage bar; Described connecting link one end connects lift cylinder, and the other end connects explosion-proof valve; There is between described plant bottom case and connecting link the space for sandwiched lithium ion battery explosion-proof valve to be measured; Described detecting and controlling system comprises digital display manometer, and it is connected with seal chamber, and with explosion-proof valve, connecting link forms sealing; Described compressed gas source is connected to explosion-proof valve and seal chamber, and for pressurizeing to them.The present invention adopts and detects liquid without the need to using again.Present device volume is little simultaneously, and automaticity is high, easy to use, and work efficiency is high and very accurate.<!--1-->

Description

A kind of high-capacity dynamical lithium-ion explosion-proof valve leak-testing apparatus and detection method thereof
Technical field
The present invention relates to high-capacity dynamical lithium-ion battery explosion-proof valve leak-testing apparatus, be specifically related to a kind of high-capacity dynamical lithium-ion battery explosion-proof valve leak-testing apparatus and detection method thereof.
Background technology
On the products such as lithium ion battery widespread use notebook, video camera, digital camera, mobile phone and electric tool.Particularly at the society of high speed development, a new generation's lithium ion battery, fuel cell etc. today that the traditional energies such as oil, coal, rock gas are day by day exploited along with people and reduced is clean, environmental protection, efficiently energy conversion accumulator system become the effective ways solving environment that modern civilization faces and energy problem, enjoys the favor of people.
But in the severe rugged environment that low temperature, air pressure are thin, and under the mal-condition such as the power drive of high power discharge.Very high to the sealing requirements of battery, there is in the industry the sealing adopting following several method to detect lithium ion battery at present.
Wherein a kind of pick-up unit comprises the container filling and detect liquid, fixture and gases at high pressure coupling arrangement, lithium ion battery explosion-proof valve to be measured can be put in container by this fixture, and this gases at high pressure one end has the explosion-proof valve opening of lithium ion battery to be connected, and the other end communicates with gases at high pressure.
During detection, immersed by lithium ion battery explosion-proof valve to be measured in the detection liquid of container, then logical gases at high pressure, continue several seconds, observe and have bubble-free, have and illustrate that leak sealing is bad, otherwise illustrate that sealing is good.
This method will use liquid, also will process after detection, just can use.
In sum, there are the following problems for prior art:
1, need, with detecting liquid, also will process after detection;
2, inconvenient operation, efficiency is low, human factor is larger.
3, automaticity is low.
Summary of the invention
The object of the present invention is to provide a kind of high-capacity dynamical lithium-ion battery explosion-proof valve leak-testing apparatus and detection method thereof, without detecting medium, volume is little, easy to detect, and efficiency is high, and robotization degree is high.Solve above technology Problems existing.The method is used at battery cover board connecting post welding explosion-proof valve, but before not connecting battery core and not welding shell.
Concrete technical scheme is as follows:
A kind of high-capacity dynamical lithium-ion explosion-proof valve leak-testing apparatus, comprises plant bottom case, detecting and controlling system, lift cylinder, seal chamber, explosion-proof valve, connecting link and compressed gas source, wherein,
Described lift cylinder connects connecting link, and moves up and down for control linkage bar;
Described connecting link one end connects lift cylinder, and the other end connects explosion-proof valve;
There is between described plant bottom case and connecting link the space for sandwiched lithium ion battery explosion-proof valve to be measured;
Described detecting and controlling system comprises digital display manometer, and it is connected with seal chamber, and with explosion-proof valve, connecting link forms sealing;
Described compressed gas source is connected to explosion-proof valve and seal chamber, and for pressurizeing to them.
Further, also comprise frame, upper rack has the air cylinder fixing mechanism for fixing lift cylinder, and frame lower is provided with plant bottom case.
Further, also comprise solenoid valve, it connects compressed gas source by gas piping one end, and the other end is connected to connecting link.
Further, also comprise solenoid directional control valve, it connects compressed gas source by gas piping one end, and the other end connects lift cylinder.
Further, digital display manometer is connected with seal chamber by gas piping, and with explosion-proof valve, connecting link forms sealing.
Further, also comprise a packing washer, it is arranged on seal chamber, and described seal chamber, packing washer are communicated with by gas piping with digital display manometer, and seal chamber and packing washer are connected to digital display manometer by gas piping.
Further, described detecting and controlling system is a control box, and it connects a hummer, for detecting cell sealing sexual abnormality alarm.
Further, described compressed gas source is connected to explosion-proof valve and seal chamber by pipeline and connecting link, and for pressurizeing to them, and by a solenoid valve opening and closing, described compressed gas source by seal chamber gassy, and can keep constant pressure in the stipulated time.
The detection method of above-mentioned high-capacity dynamical lithium-ion explosion-proof valve leak-testing apparatus, adopts following steps:
(1) mesuring battary explosion-proof valve is put into frock bottom checkout equipment;
(2) jacking gear presses down, and makes battery anti-explosion valve port by connecting link, packing washer compact siro spinning technology;
(3) time delay 1-2s control box timer starts timing, and simultaneously solenoid valve is opened compressed gas source and pressurizeed to explosion-proof valve, seal chamber and pipeline;
(4) arrive setting-up time closed electromagnetic valve, explosion-proof valve, connecting link, packing washer, seal chamber, digital display manometer and pipe form sealing system;
(5) be more than or equal to stipulated time internal gas pressure and be more than or equal to the value of setting, hummer is not reported to the police, and illustrates that sealing is good;
(6) arrive setting-up time solenoid valve reversal valve reversing cylinder to rise, test completes.
Further, before step (1), also comprise step: check that whether each electrical pipeline is good, check whether detecting and controlling system optimum configurations meets technological requirement; Foot-switch is stepped in the middle employing of step (2) makes cylinder drive connecting link to press down, and cylinder is to lower limit; Be more than or equal to the value that stipulated time internal gas pressure is more than or equal to setting in step (5), alarm is sound not, illustrates that sealing is good, otherwise illustrate that sealing is abnormal.
Compared with currently available technology, the present invention adopts and detects liquid without the need to using again.Present device volume is little simultaneously, and automaticity is high, easy to use, and work efficiency is high and very accurate.The sealing of better reflection explosion-proof valve.Liquid is detected without the need to using again.Present device volume is little simultaneously, and automaticity is high, easy to use, and work efficiency is high and very accurate.
Accompanying drawing explanation
Fig. 1 is the left view of structure of the present invention.
Fig. 2 is the cut-open view of seal chamber.
Fig. 3 control box front elevation.
Fig. 4 is battery anti-explosion valve sealing means and coordinate cut-open view.
Embodiment
Describe the present invention with reference to the accompanying drawings below, it is a kind of preferred embodiment in numerous embodiments of the present invention.
Embodiment 1:
Equipment has the composition such as cylinder (1), frame, compressed gas empty source, connecting link (for connecting cylinder, packing washer, explosion-proof valve and compressed gas source), packing washer, digital display manometer (10), time timer (11), hummer (7), power switch (12) that control linkage bar moves up and down) form explosion-proof valve device for detecting sealability.Digital display manometer is connected with seal chamber by gas piping, is formed seal with explosion-proof valve, connecting link.There is between connecting link and base the space for sandwiched lithium ion battery explosion-proof valve to be measured.Bottom jig can be good at locating to explosion-proof valve to be measured.
This kind of high-capacity dynamical lithium-ion explosion-proof valve leak-testing apparatus comprises frame, cylinder, connecting link, packing washer, pressurized air, detecting and controlling system, solenoid directional control valve, solenoid valve, bottom jig and seal chamber, digital display manometer, timer further.Described high-capacity dynamical lithium-ion battery explosion-proof valve leak-testing apparatus, further, described solenoid directional control valve connects compressed gas source by gas piping one end, and the other end is connected with cylinder.Described high-capacity dynamical lithium-ion battery explosion-proof valve leak-testing apparatus, further, described solenoid valve connects high-pressure air source by gas piping one end, and the other end connects connecting link.Described connecting link, packing washer, detector tube, detection system, exhaust pipe form a gas passage.Described high-capacity dynamical lithium-ion battery explosion-proof valve leak-testing apparatus, further, described detecting portion is connected digital display pressed gas pipeline by a seal chamber, packing washer with one and connects.And seal chamber, packing washer, digital display manometer pass through pipeline connection.Described high-capacity dynamical lithium-ion battery explosion-proof valve leak-testing apparatus, further, also comprises frame, bottom fixing tool, and its top is placed described connecting link, placed mesuring battary upper cover between packing washer and bottom frock.Fixture can change battery location very well, more convenient operation.Described lithium ion explosion-proof valve device for detecting sealability, further, described pressure gas is by seal chamber gassy.Constant pressure is kept in the stipulated time.Described high-capacity dynamical lithium-ion battery explosion-proof valve leak-testing apparatus, further, describedly also comprises alarm, and it connects detecting and controlling system and for detecting cell sealing sexual abnormality alarm.Lift cylinder, it is arranged in frame, and controlling lifting is that battery anti-explosion valve port and connecting link and packing washer link together.
The detection method of above-mentioned high-capacity Lithium ion battery anti-explosion valve leak check equipment, take following steps:
Check that whether each electrical pipeline is good
Check whether detecting and controlling system optimum configurations meets technological requirement
Mesuring battary explosion-proof valve is put into bottom frock.
Step on foot-switch, jacking gear presses down, and makes battery anti-explosion valve port by connecting link, packing washer compact siro spinning technology.Cylinder is to lower limit.
Time delay 1-2s timer starts timing, and simultaneously battery valve is opened compressed gas source and pressurizeed to explosion-proof valve, seal chamber and pipeline.
Arrive setting-up time closed electromagnetic valve, explosion-proof valve, connecting link, packing washer, seal chamber, digital display manometer and pipe form sealing system
Be more than or equal to stipulated time internal gas pressure and be more than or equal to the value of setting.Hummer is not reported to the police, and illustrates that sealing is good.
Arrive setting-up time solenoid valve reversal valve reversing cylinder to rise.Test completes.
Be more than or equal to stipulated time internal gas pressure and be more than or equal to the value of setting, alarm is sound not, illustrates that sealing is good, otherwise illustrate that sealing is abnormal.
Embodiment 2:
First on cover plate (16), pole (17) is connected, and after having welded explosion-proof valve (13), be placed in this lithium ion explosion-proof valve device for detecting sealability and have cylinder (1), air cylinder fixing mechanism (2), packing washer (3), packing washer (4), compressed gas source (5), seal chamber (6), hummer (7), solenoid valve reversal valve (8) one end connects compressed gas source, one end connects cylinder (1), solenoid valve (9) one end connects compressed gas source, the other end connects connecting link, a digital display manometer (10) gas piping one end is had to connect digital display manometer, one end connects seal chamber (6).Control box (14), connecting link (15), timer (11), battery anti-explosion valve (13) is located, and also has lower limit for detecting cylinder lower limit working position, power switch (12).Gantry base is placed detected battery, and step on foot-switch, cylinder is started working, and cylinder presses down and makes explosion-proof valve port and packoff compact siro spinning technology, and timer time delay 2S, lower limit detect that cylinder is opened solenoid valve 9 to lower limit and started to fill pressure gas; Arrive setting-up time shut electromagnetic valve 9, being more than or equal to gaseous tension in the stipulated time and being more than or equal to the value of setting.Hummer is not reported to the police, and illustrates that sealing is good.Report to the police and illustrate that sealing is abnormal.
Adopt apparatus of the present invention, gas piping, explosion-proof valve, seal chamber, digital display manometer are charged to the malleation of certain pressure by compressed gas source.Within the pressure limit being stabilized in regulation in the stipulated time.If portion's alarm equipment alarm in specialized range at the appointed time, specification exception does not meet the sealing propertytest of technological requirement.The present invention adopts and detects liquid without the need to using again.
The present invention adopts and detects liquid without the need to using again.Present device volume is little simultaneously, and automaticity is high, easy to use, and work efficiency is high and very accurate.
With reference to the concrete production operation flow process of accompanying drawing:
Check that whether each electrical pipeline is good
Check whether detecting and controlling system optimum configurations meets technological requirement
Mesuring battary explosion-proof valve is put into bottom frock.
Fig. 4 is that battery anti-explosion valve sealing means steps on foot-switch with coordinating front elevation 4, and jacking gear presses down, and makes battery anti-explosion valve port by connecting link, packing washer compact siro spinning technology.Cylinder is to lower limit.
Time delay 1-2s timer starts timing, and simultaneously battery valve is opened compressed gas source and pressurizeed to explosion-proof valve, seal chamber and pipeline.
Arrive setting-up time closed electromagnetic valve, explosion-proof valve, connecting link, packing washer, seal chamber, digital display manometer and pipe form sealing system
Be more than or equal to stipulated time internal gas pressure and be more than or equal to the value of setting.Hummer is not reported to the police, and illustrates that sealing is good.
Arrive setting-up time solenoid valve reversal valve reversing cylinder to rise.Test completes.
Be more than or equal to stipulated time internal gas pressure and be more than or equal to the value of setting, alarm is sound not, illustrates that sealing is good, otherwise illustrate that sealing is abnormal.
Compared with current existing invention, the present invention adopts and detects liquid without the need to using again.Present device volume is little simultaneously, and automaticity is high, easy to use, and work efficiency is high and very accurate.The sealing of better reflection explosion-proof valve.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the various improvement that method of the present invention is conceived and technical scheme is carried out; or directly apply to other occasion, all within protection scope of the present invention without improving.

Claims (7)

1. a high-capacity dynamical lithium-ion explosion-proof valve leak-testing apparatus, is characterized in that, comprises plant bottom case, detecting and controlling system, lift cylinder, seal chamber, explosion-proof valve, connecting link, compressed gas source and solenoid directional control valve, wherein,
Described lift cylinder connects connecting link, and moves up and down for control linkage bar;
Described connecting link one end connects lift cylinder, and the other end connects explosion-proof valve;
There is between described plant bottom case and connecting link the space for sandwiched lithium ion battery explosion-proof valve to be measured;
Described detecting and controlling system comprises digital display manometer, and it is connected with seal chamber, and with explosion-proof valve, connecting link forms sealing;
Described compressed gas source is connected to explosion-proof valve and seal chamber, and for pressurizeing to them;
Solenoid directional control valve connects compressed gas source by gas piping one end, and the other end connects lift cylinder.
2. high-capacity dynamical lithium-ion explosion-proof valve leak-testing apparatus as claimed in claim 1, it is characterized in that, also comprise frame, upper rack has the air cylinder fixing mechanism for fixing lift cylinder, and frame lower is provided with plant bottom case.
3. high-capacity dynamical lithium-ion explosion-proof valve leak-testing apparatus as claimed in claim 1 or 2, is characterized in that, also comprise solenoid valve, and it connects compressed gas source by gas piping one end, and the other end is connected to connecting link.
4. high-capacity dynamical lithium-ion explosion-proof valve leak-testing apparatus as claimed in claim 3, it is characterized in that, digital display manometer is connected with seal chamber by gas piping, is formed seal with explosion-proof valve, connecting link.
5. high-capacity dynamical lithium-ion explosion-proof valve leak-testing apparatus as claimed in claim 4, it is characterized in that, also comprise a packing washer, it is arranged on seal chamber, described seal chamber, packing washer are communicated with by gas piping with digital display manometer, and seal chamber and packing washer are connected to digital display manometer by gas piping.
6. as claim 1,2,4, the high-capacity dynamical lithium-ion explosion-proof valve leak-testing apparatus according to any one of 5, is characterized in that, described detecting and controlling system is a control box, and it connects a hummer, for detecting cell sealing sexual abnormality alarm.
7. as claim 1,2,4, high-capacity dynamical lithium-ion explosion-proof valve leak-testing apparatus according to any one of 5, it is characterized in that, described compressed gas source is connected to explosion-proof valve and seal chamber by pipeline and connecting link, and for pressurizeing to them, and by a solenoid valve opening and closing, described compressed gas source by seal chamber gassy, and can keep constant pressure in the stipulated time.
CN201310094777.4A 2013-03-22 2013-03-22 A kind of high-capacity dynamical lithium-ion explosion-proof valve leak-testing apparatus and detection method thereof CN103234714B (en)

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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
CN103776601A (en) * 2014-02-28 2014-05-07 奇瑞汽车股份有限公司 Battery pole sealing detecting device and detecting method thereof
CN104792511B (en) * 2015-04-27 2018-02-27 中航锂电(江苏)有限公司 Gas seat and lithium battery technique valve detection device are used in a kind of technique valve detection
CN105810970A (en) * 2016-03-11 2016-07-27 合肥国轩高科动力能源有限公司 Method for rapidly detecting sealing performance of battery box

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CN202057467U (en) * 2011-05-10 2011-11-30 苏州星恒电源有限公司 Air tightness detecting device of lithium battery safety valve
CN102297752A (en) * 2011-05-18 2011-12-28 奇瑞汽车股份有限公司 Cell shell leak hunting equipment and leak hunting method thereof
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