CN106872116A - Battery cover board leak detection method - Google Patents

Battery cover board leak detection method Download PDF

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Publication number
CN106872116A
CN106872116A CN201611244378.1A CN201611244378A CN106872116A CN 106872116 A CN106872116 A CN 106872116A CN 201611244378 A CN201611244378 A CN 201611244378A CN 106872116 A CN106872116 A CN 106872116A
Authority
CN
China
Prior art keywords
battery cover
cover board
board
platen
leak detection
Prior art date
Application number
CN201611244378.1A
Other languages
Chinese (zh)
Inventor
刘丽
张大峰
Original Assignee
国轩新能源(苏州)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.)
Filing date
Publication date
Application filed by 国轩新能源(苏州)有限公司 filed Critical 国轩新能源(苏州)有限公司
Priority to CN201611244378.1A priority Critical patent/CN106872116A/en
Publication of CN106872116A publication Critical patent/CN106872116A/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/06Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool

Abstract

Present invention is disclosed battery cover board leak detection method, comprise the following steps:S1, battery cover board clamping is positioned in elastic washer;S2, top board and lower platen lock sealing, tracheae connection lower platen, air pressure regulator and nitrogen pot;S3, top board and lower platen are immersed in aquamanile;S4, opens nitrogen tank valve, opens air pressure regulator, and circulated gases pressure is adjusted to 0.6 1MP scopes;Whether S5, the opening that top board is observed after 1 5min has bubble to bloat.The present invention realizes the detection of leaking hunting of supplied materials stage battery cover board, it is to avoid later stage leakage risk, detection method is quick and easy.

Description

Battery cover board leak detection method
Technical field
The invention belongs to cell art, more particularly to a kind of battery cover board leak detection method.
Background technology
Current battery in the industry for detection sealing the step of and mode, typically all battery assembling after or finished product rank Section, is detected by helium or positive/negative-pressure is detected, testing cost is high and detection work step is delayed, have ignored in this stage of IQC supplied materials Check and evaluation and control, cause the later stage often to cause all batteries of a battery or whole electric motor car because of a cover plate leakage Loss, and also there is potential safety hazard.Therefore a kind of battery cover board leak detection method is introduced in IQC supplied materials to be just particularly important.
The content of the invention
The invention aims to solve above-mentioned technical problem, and a kind of battery cover board leak detection method is provided, so that real The detection of leaking hunting of existing supplied materials stage battery cover board, it is to avoid later stage leakage risk, detection method is quick and easy.In order to reach above-mentioned mesh , technical solution of the present invention is as follows:
Battery cover board leak detection method, comprises the following steps:
S1, battery cover board clamping is positioned in elastic washer;
S2, top board and lower platen lock sealing, tracheae connection lower platen, air pressure regulator and nitrogen pot;
S3, top board and lower platen are immersed in aquamanile;
S4, opens nitrogen tank valve, opens air pressure regulator, and circulated gases pressure is adjusted to 0.6-1MP scopes;
Whether the opening that top board is observed after S5,1-5min has bubble to bloat.
Specifically, top board laminating corresponding with the lower platen is fixed.
Specifically, the central part of the lower platen is installed with the elastic washer, offered in the elastic washer Hollow portion of leaving a blank.
Specifically, the elastic washer uses high temperature resistant, corrosion-resistant, excellent spring viton gasket.
Specifically, extended vertically through in the top board offering the opening corresponding with the hollow portion of leaving a blank.
Specifically, the lower platen is provided with air inlet.
Specifically, the air inlet is externally attached to the air pressure regulator, the air pressure regulator is connected to nitrogen pot.
Specifically, the air inlet inside is by pipeline communication to hollow portion of leaving a blank.
Compared with prior art, the beneficial effect of battery cover board leak detection method of the present invention is mainly reflected in:Taken out by supplied materials Sample detection, can timely judge the sealing of battery cover board, prevent the leakage hidden danger in battery later stage;The clamping of rubber washer is treated The structure for surveying part facilitates unloading, and top board hatch frame is easy to observation analysis result;Integrated testability method is simple, low cost, real Strong with property, test is accurate.
Brief description of the drawings
Fig. 1 is structural representation of the invention;
Numeral is represented in figure:
1 top board, 11 openings, 2 lower platens, 3 elastic washers, 4 hollow portions of leaving a blank, 5 air inlets, 51 air pressure regulators, 52 Nitrogen pot.
Specific embodiment
Clear, complete description will be carried out to the technical scheme in the embodiment of the present invention below in conjunction with the accompanying drawings, it is clear that retouched The embodiment stated is only a part of embodiment of the invention, rather than whole embodiments.
Embodiment:
Shown in reference picture 1, the present embodiment is battery cover board leak-checking apparatus, including the pressing corresponding with top board 1 of top board 1 Lower platen 2;The central part of lower platen 2 is installed with elastic washer 3, and the present embodiment elastic washer 3 is using high temperature resistant, corrosion resistant Erosion, the viton gasket of excellent spring.Elastic washer 3 is provided with hollow portion 4 of leaving a blank, clamping battery cover board in hollow portion 4 of leaving a blank Part (not shown) to be measured.Extended vertically through in top board 1 and offer the opening 11 corresponding with hollow portion 4 of leaving a blank, upper pressure Plate 1 is detachably fixed lower platen 2 by screw, and elastic washer 3 is sealed in top board 1 and lower platen 2.Lower platen 2 be provided with into Gas port 5, air inlet 5 is externally connected to air pressure regulator 51, and air pressure regulator 51 is connected with nitrogen pot 52.The inside of air inlet 5 is logical Cross channel connection corresponding with hollow portion 4 of leaving a blank to central part.
Battery cover board leak detection method, comprises the following steps:S1, battery cover board clamping is positioned in elastic washer 3;S2, on Pressing plate 1 and the lock sealing of lower platen 2, tracheae connection lower platen 2, air pressure regulator 51 and nitrogen pot 52;S3, top board 1 is with Pressing plate 2 is immersed in aquamanile;S4, opens the valve of nitrogen pot 52, opens air pressure regulator 51, and circulated gases pressure is adjusted Save to 0.6-1MP scopes;Whether the opening 11 that top board 1 is observed after S5,1-5min has bubble to bloat.Electricity is illustrated if having bubble The sealing of pond cover plate there are problems that bad, and battery cover board good seal is proved if bubble-free.
The present embodiment can timely judge the sealing of battery cover board by supplied materials sampling Detection, prevent the battery later stage Leakage hidden danger;The structure of the clamping part to be measured of rubber washer facilitates unloading, and top board hatch frame is easy to observation analysis result; Integrated testability method is simple, and low cost is practical, and test is accurate.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not On the premise of departing from the invention design, various modifications and improvements can be made, these belong to protection model of the invention Enclose.

Claims (8)

1. battery cover board leak detection method, it is characterised in that comprise the following steps:
S1, battery cover board clamping is positioned in elastic washer;
S2, top board and lower platen lock sealing, tracheae connection lower platen, air pressure regulator and nitrogen pot;
S3, top board and lower platen are immersed in aquamanile;
S4, opens nitrogen tank valve, opens air pressure regulator, and circulated gases pressure is adjusted to 0.6-1MP scopes;
Whether the opening that top board is observed after S5,1-5min has bubble to bloat.
2. battery cover board leak detection method according to claim 1, it is characterised in that:The top board and the lower platen pair Should be fitted fixation.
3. battery cover board leak detection method according to claim 1, it is characterised in that:The central part of the lower platen fixes peace Equipped with the elastic washer, hollow portion of leaving a blank is offered in the elastic washer.
4. battery cover board leak detection method according to claim 3, it is characterised in that:The elastic washer using high temperature resistant, Corrosion-resistant, excellent spring viton gasket.
5. battery cover board leak detection method according to claim 3, it is characterised in that:Extended vertically through in the top board and opened up There is the opening corresponding with the hollow portion of leaving a blank.
6. battery cover board leak detection method according to claim 1, it is characterised in that:The lower platen is provided with air inlet.
7. battery cover board leak detection method according to claim 6, it is characterised in that:The air inlet is externally attached to described Air pressure regulator, the air pressure regulator is connected to nitrogen pot.
8. battery cover board leak detection method according to claim 6, it is characterised in that:The air inlet inside is connected by pipeline Pass to hollow portion of leaving a blank.
CN201611244378.1A 2016-12-29 2016-12-29 Battery cover board leak detection method CN106872116A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611244378.1A CN106872116A (en) 2016-12-29 2016-12-29 Battery cover board leak detection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611244378.1A CN106872116A (en) 2016-12-29 2016-12-29 Battery cover board leak detection method

Publications (1)

Publication Number Publication Date
CN106872116A true CN106872116A (en) 2017-06-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611244378.1A CN106872116A (en) 2016-12-29 2016-12-29 Battery cover board leak detection method

Country Status (1)

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CN (1) CN106872116A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108663273A (en) * 2018-04-11 2018-10-16 上海空间电源研究所 Measure the test method of lithium ion battery mechanical deformation stress

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87106017A (en) * 1987-08-29 1988-04-06 哈尔滨工业大学 Encapsulation parts small opening detects screening method and device
JP2000121483A (en) * 1998-10-16 2000-04-28 Sanoh Industrial Co Ltd Leak detection method for caulking part of battery can with groove
CN201373791Y (en) * 2009-03-23 2009-12-30 保定风帆新能源有限公司 Cylindrical lithium battery gas tightness detector
CN102023072A (en) * 2010-10-15 2011-04-20 奇瑞汽车股份有限公司 Detection device and method for sealing performance between anti-explosion valve outer wire and cover plate of lithium ion battery
CN102426081A (en) * 2011-08-25 2012-04-25 奇瑞汽车股份有限公司 Positive pressure detection equipment for tightness of large-capacity power lithium ion battery and detection method thereof
CN202814661U (en) * 2012-09-28 2013-03-20 山西皇城相府中道能源有限公司 Cylindrical battery sealing air tightness detection
CN203053654U (en) * 2013-01-14 2013-07-10 高桥金属制品(苏州)有限公司 Gas tightness detection device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87106017A (en) * 1987-08-29 1988-04-06 哈尔滨工业大学 Encapsulation parts small opening detects screening method and device
JP2000121483A (en) * 1998-10-16 2000-04-28 Sanoh Industrial Co Ltd Leak detection method for caulking part of battery can with groove
CN201373791Y (en) * 2009-03-23 2009-12-30 保定风帆新能源有限公司 Cylindrical lithium battery gas tightness detector
CN102023072A (en) * 2010-10-15 2011-04-20 奇瑞汽车股份有限公司 Detection device and method for sealing performance between anti-explosion valve outer wire and cover plate of lithium ion battery
CN102426081A (en) * 2011-08-25 2012-04-25 奇瑞汽车股份有限公司 Positive pressure detection equipment for tightness of large-capacity power lithium ion battery and detection method thereof
CN202814661U (en) * 2012-09-28 2013-03-20 山西皇城相府中道能源有限公司 Cylindrical battery sealing air tightness detection
CN203053654U (en) * 2013-01-14 2013-07-10 高桥金属制品(苏州)有限公司 Gas tightness detection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108663273A (en) * 2018-04-11 2018-10-16 上海空间电源研究所 Measure the test method of lithium ion battery mechanical deformation stress

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Application publication date: 20170620