CN202420779U - Lithium battery leakage detection device - Google Patents

Lithium battery leakage detection device Download PDF

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Publication number
CN202420779U
CN202420779U CN2011205416424U CN201120541642U CN202420779U CN 202420779 U CN202420779 U CN 202420779U CN 2011205416424 U CN2011205416424 U CN 2011205416424U CN 201120541642 U CN201120541642 U CN 201120541642U CN 202420779 U CN202420779 U CN 202420779U
Authority
CN
China
Prior art keywords
lithium battery
checking apparatus
escape pipe
draft tube
container
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN2011205416424U
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Chinese (zh)
Inventor
胡振宁
胡泽军
官彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG HALISE NEW ENERGY Ltd
Original Assignee
ZHEJIANG HALISE NEW ENERGY Ltd
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.)
Filing date
Publication date
Application filed by ZHEJIANG HALISE NEW ENERGY Ltd filed Critical ZHEJIANG HALISE NEW ENERGY Ltd
Priority to CN2011205416424U priority Critical patent/CN202420779U/en
Application granted granted Critical
Publication of CN202420779U publication Critical patent/CN202420779U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a lithium battery detection device. The lithium battery leakage detection device comprises a transparent sealed container, an air inlet pipe and a vacuum source, wherein one end of the air inlet pipe is extended into the sealed container; the vacuum source is used for vacuumizing the sealed container; the air inlet pipe is provided with an air inlet valve; and an air outlet valve is arranged between the vacuum source and the sealed container. The utility model provides the lithium battery leakage detection device, which is convenient to use and is used for detecting the leakage before a lithium battery is injected into electrolyte. The problems that the conventional lithium battery leakage detection device is inconvenient to use, and resources are wasted because the leakage is detected after the lithium battery is injected into the electrolyte are solved.

Description

The lithium battery leak-checking apparatus
Technical field
The utility model relates to the lithium battery pick-up unit, relates in particular to a kind of lithium battery leak-checking apparatus.
Background technology
Consider the finiteness and the problem of environmental pollution of petroleum resources, power accumulator has obtained unprecedented development.And lithium battery (like ferric phosphate lithium cell, lithium-manganese cell) is constantly developed as power accumulator with its high power, long-life and security.And if lithium battery produces leakage, can have a strong impact on the serviceable life of lithium battery and cause environmental pollution, so in the lithium battery production run, all can lithium battery be leaked hunting, the lithium battery that flows to market with assurance is the qualified product of sealing.
It is existing when lithium battery is carried out leak-testing; All be after battery production is accomplished, to test again; Though it is the qualified product of sealing property that this kind method of testing can guarantee to flow to the product in market, when the lithium battery of poor sealing is done over again, just can carry out after need the electrolytic solution in the battery case being poured out; For the defective products battery; In battery case, inject electrolytic solution and all be idle work with electrolytic solution work such as pour out in the battery case, caused the wasting of resources, convenience was poor when defective products was done over again.
Chinese patent Granted publication number for 201876343U, Granted publication day be June 22 in 2011 day, be called in the patent documentation of " a kind of lithium ion battery apparatus for testing weeping " and disclose a kind of device that lithium battery is leaked hunting.This device comprises casing and the organic matter component detector that holds lithium ion battery to be measured, is provided with the gas outlet at the top of casing, is covered with inverted funnel on the gas outlet, and the detection head of machine thing component detector is arranged on the opening part of funnel.During use; Lithium ion battery is placed in the casing; Then casing is heated to quicken the volatilization of the electrolytic solution in the battery; If the organic matter component detector detects relevant organic content and exceeds standard then represent that lithium ion battery to be measured has leakage, otherwise lithium ion battery to be tested is certified products.
Not only there is above-mentioned total deficiency in this leak-checking apparatus, and when test, needs heating, brings great inconvenience to test job.
The utility model content
The utility model provides a kind of lithium battery leak-checking apparatus easy to use, that before lithium battery injects electrolytic solution, leak hunting, has solved the problem that existing lithium battery leak-checking apparatus existingly uses inconvenience, injects the wasting of resources that caused of leaking hunting again behind the electrolytic solution.
Above technical matters solves through following technical proposal: a kind of lithium battery leak-checking apparatus; Comprise transparent airtight container; Comprise that also an end stretches into draft tube in the said airtight container and the vacuum source that airtight container is vacuumized; On said draft tube, be provided with gas admittance valve, between said vacuum source and said airtight container, be provided with air outlet valve.When using the utility model first, in airtight container, inject water, make water logging not live in the gas outlet of tracheae (that port that is positioned at airtight container of draft tube); Make that gas admittance valve cuts out, air outlet valve opens; Through vacuum source airtight container is vacuumized, after the pressure in the airtight container reaches required force value, close air outlet valve again, airtight container forms a vacuum environment; The shell (being designated hereinafter simply as lithium battery case) of through the utility model lid having been gone up in the welding of lithium battery then carries out the sealing detection; Concrete detection method does, makes the inlet end of draft tube promptly be positioned at that outer end of airtight container and is sealedly connected on the liquid injection hole of lithium battery case, opens gas admittance valve then; The poor sealing of representing lithium battery case if the water in the airtight container continues to produce bubble; Lithium battery case sealing is bad then injects when making lithium battery behind the electrolytic solution, and this lithium battery can be because of the poor sealing leakage, and also promptly the sealing of this lithium battery can not be up to standard.When detecting the lithium battery case poor sealing; Then lithium battery case is done over again to sealing and deliver to subsequent handling again after up to standard and go out to make lithium battery; But not after assembling, detect again; Can not cause the unnecessary wasting of resources, when vacuum in sealed container is not enough, open air outlet valve more again, through vacuum source airtight container be evacuated down to and close air outlet valve after meeting the requirements.
The utility model also comprises the air inlet switch and goes out air cock, and said gas admittance valve and said air outlet valve all are solenoid valve, and said air inlet switch is used to control said gas admittance valve, saidly goes out air cock and is used to control said air outlet valve.Time saving and energy saving when opening gas admittance valve and air outlet valve, can control automatically.
As preferably, said air inlet switch and said to go out air cock all be foot-switch.During use, the effect personnel go to control the connection of draft tube with lithium battery case with hand, remove to control CS with pin, use both hands and feet, and testing efficiency is high and easy to operate.
The utility model also comprises syringe needle and the liquid injection hole sealing-plug that is used for the liquid injection hole of sealed lithiam battery shell, and said syringe needle is located on the said liquid injection hole sealing-plug, and the afterbody of said syringe needle is tightly connected together with the inlet end of said draft tube.When lithium battery case is leaked hunting, liquid injection hole sealing-plug plug is realized draft tube with being tightly connected between the lithium battery case in the liquid injection hole of lithium battery, the gas in the lithium battery case gets in the airtight container after syringe needle, draft tube successively.Draft tube is sealably coupled to the liquid injection hole of lithium battery case and convenient when from liquid injection hole, taking off.
The utility model also comprises escape pipe; One end of said escape pipe is positioned at said airtight container; The other end of said escape pipe links together with the entrance point of said vacuum source, and said air outlet valve is arranged on the said escape pipe, and the air intake opening of said escape pipe is higher than the gas outlet of said draft tube.When in airtight container, injecting water, make the water surface between the gas outlet of the air intake opening of escape pipe and draft tube.Airtight container only needs an opening can realize with being connected of vacuum source and lithium battery case, and is low to the structural requirement of airtight container.
As preferably; Said airtight container comprises that wide-necked bottle and removable seal are connected the container cover on the opening of wide-necked bottle; Said draft tube and escape pipe get into said wide-necked bottle through said container cover, and said draft tube is tightly connected with said container cover with said escape pipe and is in the same place.Airtight container is made up of wide-necked bottle and the container cover that removable seal links together, to water filling in the airtight container with convenient when pouring out water.Draft tube and escape pipe are connected on the container cover simultaneously; In the process of mounting or dismounting container cover; The relative position of the gas outlet of draft tube and the air intake opening of escape pipe can not produce change; Then follow-uply after the relative position of the gas outlet of draft tube and the air intake opening of escape pipe is adjusted to the right place need not to adjust again, improved the convenience when using.
The utility model also comprises the vacuum meter that is used to detect sealed container interior air pressure.For the unlatching of vacuum source provides criterion intuitively, when not needing avoiding the open vacuum source and vacuum source still is in opening, cause the loss of energy dissipation and acceleration equipment; Carry out testing experiment when avoiding vacuum in sealed container not enough, cause accuracy of experimental results poor.
As preferably, said vacuum meter is installed on the said container cover.Can when observing vacuum meter, observe in the airtight container whether emit bubble, convenience is good.
As preferably, said container cover is a sealing-plug.Container cover helps shortening test period according to wide-necked bottle and when wide-necked bottle takes off, making things convenient for fast.
The utlity model has following advantage, whether lithium battery case is leaked hunting meets the requirements with the sealing of judging the finished product lithium battery, and loss convenient when defective products is done over again, that caused when defective products is scrapped is less, the wasting of resources is less; Judge whether to leak through bubbling, intuitive is good; Simple in structure, cost of manufacture is low, and is easy to use.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the user mode synoptic diagram of the utility model.
Among the figure: airtight container 1, wide-necked bottle 11, container cover 12, draft tube 2, escape pipe 3; Vacuum source 4, vacuum meter 5, syringe needle 6, liquid injection hole sealing-plug 7, gas admittance valve 81; First lead 82, air inlet switch 83, air outlet valve 91, the second leads 92 go out air cock 93; Lithium battery case 100, liquid injection hole 101, water 200, liquid level 201.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Referring to Fig. 1, a kind of lithium battery leak-checking apparatus comprises airtight container 1, draft tube 2, escape pipe 3, vacuum source 4 and vacuum meter 5.
Airtight container 1 comprises the container cover 12 on wide-necked bottle 11 and the opening that is sealedly connected on wide-necked bottle 11.Wide-necked bottle 11 is transparent.Container cover 12 is a rubber seal plug.But be sealedly connected in the opening of wide-necked bottle 11 to container cover 12 plugs.
Draft tube 2 is the hard PVC pipe.The outlet side of draft tube 2 extend in the lower end of wide-necked bottle 11 after passing container cover 12.Draft tube 2 is tightly connected together with the elastic force that relies on container cover 12 self between the container cover 12.The inlet end of draft tube 2 links together with the tail seal of syringe needle 6.Syringe needle 6 is located on the liquid injection hole sealing-plug 7.The head of syringe needle 6 stretches out the lower surface of liquid injection hole sealing-plug 7.Liquid injection hole sealing-plug 7 is a silica gel plug.Syringe needle 6 is tightly connected together with the elastic force that relies on liquid injection hole sealing-plug 7 self between the liquid injection hole sealing-plug 7.On draft tube 2, also be provided with gas admittance valve 81.Gas admittance valve 81 is the 2/2-way normally closed solenoid valve.Gas admittance valve 81 is electrically connected with air inlet switch 83 through first lead 82.Air inlet switch 83 is a foot-switch.
Escape pipe 3 is the hard PVC pipe.The inlet end of escape pipe 3 extend in the upper end of wide-necked bottle 11 after passing container cover 12.Escape pipe 3 is tightly connected together with the elastic force that relies on container cover 12 self between the container cover 12.The outlet side of escape pipe 3 is tightly connected together with the entrance point of vacuum source 4.Vacuum source 4 is the Motorized vacuum source.On escape pipe 3, also be provided with air outlet valve 91.Air outlet valve 91 is the 2/2-way normally closed solenoid valve.Air outlet valve 91 is electrically connected with going out air cock 93 through second lead 92.Go out air cock 93 and be foot-switch.
Vacuum meter 5 is installed on the container cover 12.
Referring to Fig. 2; During use; With water 200 be injected in the airtight container 1 and make liquid level 201 be higher than draft tube 2 the outlet side, be lower than the inlet end of escape pipe 3; Liquid injection hole sealing-plug 7 is inserted in the liquid injection hole 101 of lithium battery case 100, under the effect of liquid injection hole sealing-plug 7 self elastic force, makes liquid injection hole sealing-plug 7 be tightly connected together with liquid injection hole 101.Start vacuum source 4, the air cock 93 that tramps with one's feet is down opened air outlet valve 91, observes the number of degrees of vacuum meter 5; When the number of degrees be-0.06MPa is between-the 0.07MPa time; Unclamp going out jamming on and stopping vacuum source 4 of air cock 93, air outlet valve 91 cuts out, and airtight container 1 remains on vacuum state.Tramp with one's feet and depress air inlet switch 83 gas admittance valve 81 is opened; Observe the bubbling situation in the water 200; If water 200 continuous bubblings and do not stop then representing that lithium battery case 100 leaks gas, if water 200 bubblings and steep and fewer and fewerily stop at last then represent that lithium battery case 100 is air tight.After a lithium battery case is surveyed well; Unclamp and gas admittance valve 81 cuts out, then liquid injection hole sealing-plug 7 is pulled up, observe the number of degrees of vacuum meter 5 jamming on of air inlet switch 83; If the number of degrees are greater than-0.06MPa; Then again airtight container 1 is vacuumized,, then can test next lithium battery case if be not more than-0.06MPa.

Claims (10)

1. lithium battery leak-checking apparatus; Comprise transparent airtight container; It is characterized in that; Comprise that also an end stretches into draft tube in the said airtight container and the vacuum source that airtight container is vacuumized, on said draft tube, be provided with gas admittance valve, between said vacuum source and said airtight container, be provided with air outlet valve.
2. lithium battery leak-checking apparatus according to claim 1; It is characterized in that also comprise the air inlet switch and go out air cock, said gas admittance valve and said air outlet valve all are solenoid valve; Said air inlet switch is used to control said gas admittance valve, saidly goes out air cock and is used to control said air outlet valve.
3. lithium battery leak-checking apparatus according to claim 2 is characterized in that, said air inlet switch and said to go out air cock all be foot-switch.
4. according to claim 1 or 2 or 3 described lithium battery leak-checking apparatus; It is characterized in that; Also comprise syringe needle and the liquid injection hole sealing-plug that is used for the liquid injection hole of sealed lithiam battery shell; Said syringe needle is located on the said liquid injection hole sealing-plug, and the afterbody of said syringe needle is tightly connected together with the inlet end of said draft tube.
5. according to claim 1 or 2 or 3 described lithium battery leak-checking apparatus; It is characterized in that; Also comprise escape pipe, an end of said escape pipe is positioned at said airtight container, and the other end of said escape pipe links together with the entrance point of said vacuum source; Said air outlet valve is arranged on the said escape pipe, and the air intake opening of said escape pipe is higher than the gas outlet of said draft tube.
6. lithium battery leak-checking apparatus according to claim 5; It is characterized in that; Said airtight container comprises that wide-necked bottle and removable seal are connected the container cover on the opening of wide-necked bottle; Said draft tube and escape pipe get into said wide-necked bottle through said container cover, and said draft tube is tightly connected with said container cover with said escape pipe and is in the same place.
7. lithium battery leak-checking apparatus according to claim 6 is characterized in that, also comprises the vacuum meter that is used to detect sealed container interior air pressure.
8. lithium battery leak-checking apparatus according to claim 7 is characterized in that said vacuum meter is installed on the said container cover.
9. lithium battery leak-checking apparatus according to claim 6 is characterized in that, said container cover is a sealing-plug.
10. according to claim 1 or 2 or 3 described lithium battery leak-checking apparatus, it is characterized in that, also comprise the vacuum meter that is used to detect said sealed container interior air pressure.
CN2011205416424U 2011-12-22 2011-12-22 Lithium battery leakage detection device Expired - Fee Related CN202420779U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205416424U CN202420779U (en) 2011-12-22 2011-12-22 Lithium battery leakage detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205416424U CN202420779U (en) 2011-12-22 2011-12-22 Lithium battery leakage detection device

Publications (1)

Publication Number Publication Date
CN202420779U true CN202420779U (en) 2012-09-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205416424U Expired - Fee Related CN202420779U (en) 2011-12-22 2011-12-22 Lithium battery leakage detection device

Country Status (1)

Country Link
CN (1) CN202420779U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103471785A (en) * 2013-09-16 2013-12-25 合肥力威汽车油泵有限公司 Gas tightness detection device for products
CN111982425A (en) * 2020-07-21 2020-11-24 中国电子产品可靠性与环境试验研究所((工业和信息化部电子第五研究所)(中国赛宝实验室)) Lithium ion battery air tightness detection method and device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103471785A (en) * 2013-09-16 2013-12-25 合肥力威汽车油泵有限公司 Gas tightness detection device for products
CN111982425A (en) * 2020-07-21 2020-11-24 中国电子产品可靠性与环境试验研究所((工业和信息化部电子第五研究所)(中国赛宝实验室)) Lithium ion battery air tightness detection method and device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120905

Termination date: 20141222

EXPY Termination of patent right or utility model