JP3027884B2 - Battery airtightness inspection method - Google Patents

Battery airtightness inspection method

Info

Publication number
JP3027884B2
JP3027884B2 JP4229613A JP22961392A JP3027884B2 JP 3027884 B2 JP3027884 B2 JP 3027884B2 JP 4229613 A JP4229613 A JP 4229613A JP 22961392 A JP22961392 A JP 22961392A JP 3027884 B2 JP3027884 B2 JP 3027884B2
Authority
JP
Japan
Prior art keywords
battery
inspection
airtightness
cap
state
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
JP4229613A
Other languages
Japanese (ja)
Other versions
JPH0674857A (en
Inventor
幸弘 小野田
寛 杉山
宗良 野田
Original Assignee
松下電器産業株式会社
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 松下電器産業株式会社 filed Critical 松下電器産業株式会社
Priority to JP4229613A priority Critical patent/JP3027884B2/en
Publication of JPH0674857A publication Critical patent/JPH0674857A/en
Application granted granted Critical
Publication of JP3027884B2 publication Critical patent/JP3027884B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【0001】[0001]
【産業上の利用分野】本発明は、電池の気密検査方法に
関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an airtightness inspection method for a battery.
【0002】[0002]
【従来の技術】一般に、密閉型鉛蓄電池は、所定の正極
板と負極板とセパレータからなる極板群と、前記極板群
を収納する電槽と、前記電槽の開口部を覆い、電池の内
部圧力が一定値以上に上昇した場合に作動する安全弁を
備えた蓋とから構成されている。そして、前記電槽と蓋
とを溶着、あるいは接着して電池を密閉化している。
2. Description of the Related Art In general, a sealed lead-acid battery includes an electrode plate group including a predetermined positive electrode plate, a negative electrode plate, and a separator, a battery case for accommodating the electrode plate group, and an opening of the battery case. And a lid provided with a safety valve that is activated when the internal pressure rises above a certain value. The battery case is sealed by welding or bonding the battery case and the lid.
【0003】しかし、この密閉型電池において、とく
に、電槽と蓋との溶着あるいは接着部分に、気密を害す
るピンホールが開いていたり、溶着不良や接着不良部分
があると、電池使用時にこの部分から電池内の電解液が
漏液して、電解液不足を早期に招いたり、漏れ出た電解
液が電池の端子や周囲の部品を腐食させることがあっ
た。
[0003] However, in this sealed type battery, if a pinhole that impairs airtightness is opened in a welded or bonded portion between the battery case and the lid, or if there is a poorly welded or poorly bonded portion, this portion is likely to be used when the battery is used. As a result, the electrolyte in the battery may leak, causing shortage of the electrolyte at an early stage, or the leaked electrolyte may corrode the terminals of the battery and surrounding parts.
【0004】そして、このような密閉型鉛蓄電池の気密
を害するピンホール等を事前に検出するために、次に示
すような加圧式気密検査方法が一般に用いられていた。
In order to detect pinholes or the like that impair the airtightness of such a sealed lead-acid battery in advance, the following pressurized airtightness inspection method has been generally used.
【0005】すなわち、一連の電池製造工程において、
密閉型鉛蓄電池を組み立てた後、電池の内部圧力を所定
の圧力値(初期値)まで高め、製造工程上でこの電池を
数秒から数分間静値していた。そして、所定の時間後に
電池の内部圧力値が前記所定の圧力値(初期値)に対し
てどの程度低下したかを調べ、内部圧力値が所定の範囲
内であるか否かにより電池の気密状態の良否を判定して
いた。
That is, in a series of battery manufacturing steps,
After assembling the sealed lead-acid battery, the internal pressure of the battery was increased to a predetermined pressure value (initial value), and the battery was allowed to stand still for several seconds to several minutes during the manufacturing process. Then, after a predetermined time, it is checked how much the internal pressure value of the battery has decreased from the predetermined pressure value (initial value), and the airtight state of the battery is determined based on whether the internal pressure value is within a predetermined range. Was judged good or bad.
【0006】そして、この場合には1個の電池の検査が
終了するまで他の電池は検査待ちになっていた。
In this case, the inspection of one battery is completed until the inspection of another battery is completed.
【0007】[0007]
【発明が解決しようとする課題】しかしながら、上記の
ような加圧式気密検査方法を用いた場合、次のような問
題が生じていた。
However, when the above-mentioned pressurized airtightness inspection method is used, the following problems have occurred.
【0008】すなわち、例えば大型の密閉型鉛蓄電池を
検査する場合、電池の内容積は大きく、これに対して気
密を害するピンホール等は相対的に極めて小さいので、
電池を加圧状態で数秒から数分間静置しただけでは電池
の内部圧力はほとんど変化せず、電池の気密不良を検出
しにくく、気密不良の検出精度が低いという問題があっ
た。
That is, for example, when testing a large sealed lead-acid battery, the internal volume of the battery is large, and the pinholes and the like that impair airtightness are relatively small.
Even if the battery is left standing for several seconds to several minutes in a pressurized state, the internal pressure of the battery hardly changes, so that it is difficult to detect poor airtightness of the battery, and the accuracy of detecting poor airtightness is low.
【0009】また、このような問題は、気密良否の検査
時間を長くすることにより解決することができるが、そ
のためには電池の加圧状態を長時間保ち続けなければな
らなく、一連の電池製造工程においてこの検査時間を長
くすることは、工程のスピードを抑制したり、製造工程
を長くしなくてはならなく、結果として作業効率を低下
させていた。
Further, such a problem can be solved by lengthening the inspection time of the airtightness. For this purpose, the pressurized state of the battery must be kept for a long time, and a series of battery manufacturing processes is required. Increasing the inspection time in the process requires suppressing the speed of the process and lengthening the manufacturing process, and as a result, lowering the working efficiency.
【0010】本発明は、このような課題を解決するもの
であり、電池の気密検査を行う際に、電池の製造工程に
おける作業効率を低下させることなく、また、精度良く
電池の気密不良を検出することができる気密検査方法を
提供するものである。
SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and when performing an airtight inspection of a battery, it is possible to accurately detect a poor airtightness of the battery without lowering the work efficiency in the battery manufacturing process. It is intended to provide an airtightness inspection method which can be performed.
【0011】[0011]
【課題を解決するための手段】上記の課題を解決するた
めに、本発明の気密検査方法は、電池を製造後、電池の
排気筒または液口をゴム製のキャップで閉塞し、ついで
電池の内部圧力を減圧して前記キャップの一部を凹み状
態とした後、製造工程上にはない別の検査工程におい
て、減圧状態の電池を長時間静置し、キャップが凹み状
態であるか否かとその程度から電池の気密状態の程度を
検査するものである。
SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an airtightness inspection method according to the present invention comprises: after manufacturing a battery, closing an exhaust pipe or a liquid port of the battery with a rubber cap; After reducing the internal pressure to partially depress the cap, in another inspection step not included in the manufacturing process, the depressurized battery is allowed to stand for a long time to determine whether or not the cap is depressed. The degree of airtightness of the battery is inspected based on the degree.
【0012】[0012]
【作用】本発明の気密検査方法では、電池を製造した
後、電池の排気筒または液口をゴム製のキャップで閉塞
し、ついでこのキャップの一部が凹み状態になるまで電
池を減圧した後、この減圧状態の電池を前記製造工程か
ら取り出して検査工程に移すものである。したがって、
従来のように気密検査を行うことによって、電池の製造
工程上での作業効率が低下することはない。
According to the airtightness inspection method of the present invention, after the battery is manufactured, the exhaust pipe or liquid port of the battery is closed with a rubber cap, and then the battery is depressurized until a part of the cap is dented. The battery in the reduced pressure state is taken out of the manufacturing process and transferred to an inspection process. Therefore,
By performing the airtight inspection as in the related art, the working efficiency in the battery manufacturing process does not decrease.
【0013】そして、この検査工程において、前記減圧
状態の電池を充分長い時間静置するので、従来のように
検査時間が短いことによる気密不良の検出精度の低さを
解消し、十分な精度で気密の良否を検出することができ
る。
In this inspection step, since the battery in the decompressed state is allowed to stand for a sufficiently long time, the low accuracy of detection of airtightness due to the short inspection time as in the prior art is eliminated, and the accuracy is sufficiently high. Airtightness can be detected.
【0014】[0014]
【実施例】以下、本発明の実施例を図面を参照にしなが
ら説明する。図1に密閉型鉛蓄電池の安全弁部分の断面
略図を示す。図1に示したように、密閉型鉛蓄電池では
所定の製造工程を経た後、蓋1に排気筒2が設けられて
いれば、その上部にゴム製のキャップ形安全弁3を取り
付けて筒2を閉塞している。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic sectional view of a safety valve portion of a sealed lead-acid battery. As shown in FIG. 1, in a sealed lead-acid battery, after a predetermined manufacturing process, if a lid 1 is provided with an exhaust pipe 2, a rubber cap-type safety valve 3 is attached to an upper part of the exhaust pipe 2 to connect the pipe 2. It is closed.
【0015】そして、この形態の密閉型鉛蓄電池の気密
検査時には、図2に示したように、前記キャップ形安全
弁3を気密にとり囲むよう、減圧吸引装置(図示せず)
につながれた開口部4を有するゴムパッキン5を設置す
る。
When the hermetic lead-acid battery of this embodiment is inspected for airtightness, as shown in FIG. 2, a vacuum suction device (not shown) is provided so as to hermetically surround the cap-type safety valve 3.
A rubber packing 5 having an opening 4 connected to the rubber packing 5 is installed.
【0016】ついで、このゴムパッキン5の開口部4か
らポンプにより約400mmHgの一定圧力差でパッキン5
の内部を15〜16秒間減圧する。
Next, the packing 5 is opened at a constant pressure difference of about 400 mmHg by a pump through the opening 4 of the rubber packing 5.
The interior of the is depressurized for 15-16 seconds.
【0017】この減圧操作でキャップ形安全弁3は相対
的に高まった電池内部の圧力により押し上げられて開か
れた状態になる。そして、電池の内部圧力はパッキン5
内部と同等に保たれる。この状態は減圧操作を終了した
時点で電池の外部圧力に対して約300mmHgの減圧状態
となり、前記キャップ形安全弁3は、破線で示すような
凹み状態となる。
By this pressure reducing operation, the cap-type safety valve 3 is pushed up by the relatively increased internal pressure of the battery and is opened. The internal pressure of the battery is
It is kept equal to the interior. In this state, when the pressure reducing operation is completed, the pressure is reduced to about 300 mmHg with respect to the external pressure of the battery, and the cap type safety valve 3 is in a concave state as shown by a broken line.
【0018】次に、この減圧状態の電池を製造工程から
取り出し、検査工程に移動させる。これにより、製造工
程においては移動してくるそれぞれの電池に対して前記
の減圧操作のみを連続的に行うことができ、検査工程で
その気密良否の検査を行うことによって、製造工程での
作業効率の低下を防止することができる。
Next, the battery in the reduced pressure state is taken out of the manufacturing process and moved to the inspection process. Thereby, in the manufacturing process, only the above-described pressure reducing operation can be continuously performed on each of the moving batteries, and the inspection of the hermeticity is performed in the inspection process, so that the work efficiency in the manufacturing process is improved. Can be prevented from decreasing.
【0019】検査工程においては所定の時間、たとえば
1時間電池を静置したあと、前記キャップ形安全弁3が
凹み状態であるか否かとその程度を調べることにより、
電池の気密の良否の検査を行う。
In the inspection step, after the battery is allowed to stand for a predetermined time, for example, one hour, whether or not the cap-type safety valve 3 is in a recessed state and the degree thereof are determined.
Inspect the airtightness of the battery.
【0020】この場合、キャップ形安全弁3の上面が、
なお1〜2mm程度凹み状態であれば、電池の気密性は良
好に保たれていると判定できる。
In this case, the upper surface of the cap type safety valve 3
If the dent is about 1 to 2 mm, it can be determined that the airtightness of the battery is well maintained.
【0021】そして可能な限り、この検査工程における
電池の静置時間を長くとることにより、電池の気密不良
を確実に検出することができる。
As long as possible, by setting the battery still time in this inspection step as long as possible, it is possible to reliably detect poor airtightness of the battery.
【0022】なお、本実施例では、密閉型鉛蓄電池につ
いて示したが、通常のベント形鉛蓄電池等に対しても、
液栓部にゴム製のキャップ等の閉塞部材を取り付けれ
ば、同様の気密良否検査を実施することができる。
In this embodiment, the sealed lead-acid battery has been described.
If a closing member such as a rubber cap is attached to the liquid stopper, a similar airtightness inspection can be performed.
【0023】[0023]
【発明の効果】以上のように、本発明の気密検査方法で
は、電池を製造後、電池の排気筒または液口を閉塞部材
であるゴム製のキャップで閉塞し、電池内部を減圧して
前記キャップの一部を凹み状態とした後、製造工程上に
はない別な検査工程において、この減圧状態の電池を充
分長い時間静置してキャップの凹み状態を把握するもの
であるので、電池の製造工程における作業効率を低下さ
せることなく、電池の気密不良を精度良く検出すること
ができる。
As described above, according to the airtightness inspection method of the present invention, after the battery is manufactured, the exhaust pipe or the liquid port of the battery is closed with a rubber cap which is a closing member, and the inside of the battery is depressurized to reduce the pressure. After the cap is partially recessed, in a separate inspection step not included in the manufacturing process, the battery in the reduced pressure state is allowed to stand for a sufficiently long time to grasp the recessed state of the cap. The poor airtightness of the battery can be accurately detected without lowering the working efficiency in the manufacturing process.
【図面の簡単な説明】[Brief description of the drawings]
【図1】密閉型鉛蓄電池の安全弁部分の断面略図FIG. 1 is a schematic sectional view of a safety valve portion of a sealed lead-acid battery.
【図2】本発明の気密検査を行う場合の安全弁部分の断
面略図
FIG. 2 is a schematic cross-sectional view of a safety valve portion when performing an airtight inspection according to the present invention.
【符号の説明】[Explanation of symbols]
1 蓋 2 排気筒 3 キャップ形安全弁 4 開口部 5 ゴムパッキン DESCRIPTION OF SYMBOLS 1 Cover 2 Exhaust pipe 3 Cap type safety valve 4 Opening 5 Rubber packing
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平2−297870(JP,A) (58)調査した分野(Int.Cl.7,DB名) G01M 3/36 G01M 3/12 H01M 10/48 301 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-297870 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) G01M 3/36 G01M 3/12 H01M 10 / 48 301

Claims (1)

    (57)【特許請求の範囲】(57) [Claims]
  1. 【請求項1】電池の蓋に備えられた排気筒または液口を
    ゴム製のキャップで閉塞し、 ついで、前記電池の内部を減圧状態として前記キャップ
    の一部を凹み状態とした後 した後に前記キャップ凹み状態から電池の気密状
    態を検査する電池の気密検査方法。
    The method according to claim 1] chimney or liquid outlet provided in the lid of the battery closed with a rubber cap, and then, after the inside of the battery as part of the recess state of the cap as a pressure reducing state, stand shaped airtight recessed state or al battery of the cap after
    A battery airtightness inspection method to check the condition .
JP4229613A 1992-08-28 1992-08-28 Battery airtightness inspection method Expired - Fee Related JP3027884B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4229613A JP3027884B2 (en) 1992-08-28 1992-08-28 Battery airtightness inspection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4229613A JP3027884B2 (en) 1992-08-28 1992-08-28 Battery airtightness inspection method

Publications (2)

Publication Number Publication Date
JPH0674857A JPH0674857A (en) 1994-03-18
JP3027884B2 true JP3027884B2 (en) 2000-04-04

Family

ID=16894929

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4229613A Expired - Fee Related JP3027884B2 (en) 1992-08-28 1992-08-28 Battery airtightness inspection method

Country Status (1)

Country Link
JP (1) JP3027884B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3538054C3 (en) * 1985-10-25 1997-01-23 Siemens Ag Electroacoustic transducers arranged within a handset of a telephone set
KR960024447A (en) * 1994-12-28 1996-07-20 윤종용 Battery withstand voltage measurement device
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
CN105818665A (en) * 2016-04-26 2016-08-03 郑州宇通客车股份有限公司 Battery box and battery system and automobile using battery box
CN108344540A (en) * 2017-12-27 2018-07-31 肇庆理士电源技术有限公司 A kind of test method and device of accumulator protection valve

Also Published As

Publication number Publication date
JPH0674857A (en) 1994-03-18

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