JPH02281554A - Square sealed battery - Google Patents
Square sealed batteryInfo
- Publication number
- JPH02281554A JPH02281554A JP1103826A JP10382689A JPH02281554A JP H02281554 A JPH02281554 A JP H02281554A JP 1103826 A JP1103826 A JP 1103826A JP 10382689 A JP10382689 A JP 10382689A JP H02281554 A JPH02281554 A JP H02281554A
- Authority
- JP
- Japan
- Prior art keywords
- projection
- hollow rivet
- cap
- sealed battery
- terminal cap
- 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.)
- Pending
Links
- 238000003466 welding Methods 0.000 abstract description 19
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
- H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、復帰型の安全装置を備えた角形密閉電池の端
子部構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a terminal structure of a rectangular sealed battery equipped with a resettable safety device.
従来の技術
従来、この種の角形密閉電池の端子部の構造は、第３図
に示すような構成であった。第３図において、１７は金
属製の蓋板で、中央にバッキング１６を取り付けるため
の孔１７１Ｌが設けてあシ、１５は頭部の形状が矩形で
ある中空リベットで、バッキング１６と金属製のワッシ
ャー１８を介して先端部１５ｂをかしめることで蓋板１
７に固定される。２１はリベット３の頭部と同形状の矩
形の７ランジ２１＆を有する端子キャップで、内部にゴ
ム製の弁体１４を備え、且つスポット溶接によって中空
リベットの矩形状頭部１６１Ｌに溶着固定されていた。2. Description of the Related Art Conventionally, the structure of the terminal portion of this type of prismatic sealed battery was as shown in FIG. In FIG. 3, 17 is a metal lid plate, which has a hole 171L in the center for attaching the backing 16, and 15 is a hollow rivet with a rectangular head that connects the backing 16 to the metal lid plate. By caulking the tip 15b through the washer 18, the lid plate 1
It is fixed at 7. 21 is a terminal cap having seven rectangular flange 21& having the same shape as the head of the rivet 3, and has a rubber valve body 14 inside, and is welded and fixed to the rectangular head 161L of the hollow rivet by spot welding. Ta.
２０はスポット溶接部である。第４図はこの端子部を備
えた角形密閉電池を示す斜視図である。20 is a spot weld. FIG. 4 is a perspective view showing a rectangular sealed battery equipped with this terminal portion.
発明が解決しようとする課題
しかしこのような構成では、角形密閉電池を機器に装脱
着する際、第５図に示すように端子キャップ２１を機器
２２の端子部２３に当接することによシ、中空リベット
の矩形状頭部１６１Ｌと端子キャップの矩形のフランジ
２１１Ｌとのスポット溶接部２０に剪断力が加わり、ス
ポット溶接部２゜が破壊されて端子キャップ２１が取れ
てしまうことがあった。円筒形電池の場合には、機器に
装脱着する方向が電池に対して不規則であるが、角形電
池の場合は、装脱着の方向が電池に対して常に決まって
おシ（第４図の矢印ム、Ｂに示す方向）、特に蓄電池に
おいては、機器と充電器への装脱着が数百回も繰シ返さ
れ、中空リベットの矩形状頭部１６＆と端子キャップ２
１のフランジ２１１Ｌのスポット溶接部２ｏが衝撃およ
び疲労破壊を起こすのである。２４は電池缶を示す。こ
の問題を解決するために、従来さまざまな方法が試みら
れた。Problems to be Solved by the Invention However, in such a configuration, when attaching or detaching the rectangular sealed battery to or from a device, the terminal cap 21 is brought into contact with the terminal portion 23 of the device 22 as shown in FIG. A shearing force was applied to the spot weld 20 between the rectangular head 161L of the hollow rivet and the rectangular flange 211L of the terminal cap, and the spot weld 2° was sometimes destroyed, causing the terminal cap 21 to come off. In the case of cylindrical batteries, the direction in which they are installed and removed from equipment is irregular relative to the battery, but in the case of prismatic batteries, the direction in which they are installed and removed in equipment is always fixed relative to the battery (see Figure 4). (in the direction shown by the arrow B), particularly in storage batteries, the rectangular head 16 of the hollow rivet and the terminal cap 2 are repeatedly attached to and detached from devices and chargers hundreds of times.
The spot weld 2o of the flange 211L of No. 1 causes impact and fatigue failure. 24 indicates a battery can. Various methods have been tried in the past to solve this problem.
例えば、スポット溶接機の電流値を上げて溶接強度を上
げることが試みられたが、この場合スポット溶接による
発熱が、バッキング１６を変形させ漏液が発生すること
があった。また端子キャップ２１のフランジ２１１Ｌに
プロジェクションを設はスポット溶接した場合、溶接強
度は向上するが、プロジェクシ叢ンにより弁体１４の圧
縮寸法が一定せず、結果として安全装置の作動圧が不安
定であった。For example, attempts have been made to increase the welding strength by increasing the current value of a spot welding machine, but in this case, the heat generated by spot welding sometimes deforms the backing 16 and causes leakage. In addition, if a projection is installed on the flange 211L of the terminal cap 21 and spot welded, the welding strength will be improved, but the compression dimension of the valve body 14 will not be constant due to the projection, and as a result, the operating pressure of the safety device will be unstable. Met.
本発明は前記のような従来の課題を解決するもので、機
器あるいは充電器への装脱着を繰シ返した場合において
も、中空リベットと端子キャップとの溶接部が破損する
ことがなく、かつ安全装置の作動圧が安定し、耐漏液性
に優れた端子構造を備えた角形密閉電池を提供すること
を目的とするものである。The present invention solves the above-mentioned conventional problems, and the welded part between the hollow rivet and the terminal cap will not be damaged even when it is repeatedly attached to and detached from the device or charger. The object of the present invention is to provide a prismatic sealed battery that has a stable operating pressure for a safety device and a terminal structure with excellent leakage resistance.
課題を解決するための手段
本発明は、上記の目的を達成するため、弁体を内蔵する
端子キャップの円筒部とフランジ部との交差部を下方に
突出させるとともに前記端子キャップのフランジ部には
プロジェクシヨン（突起）を設け、このプロジェクシ冒
ン部分で中空リベット頭部とキャップとを溶接固着した
構造の端子を備えたものである。Means for Solving the Problems In order to achieve the above object, the present invention makes the intersection between the cylindrical part of the terminal cap containing the valve body and the flange part protrude downward, and the flange part of the terminal cap has a The terminal has a structure in which a projection is provided, and a hollow rivet head and a cap are welded and fixed at the projection part.
作用
このような構成によると、端子キャップのフランジ部に
プロジェクションを設けたことにより溶接強度を上げる
ことができるとともに、端子キャップの円筒部とフラン
ジ部との交差部に設けられた突出部が中空リベット頭部
に当接されているので、スポット溶接によりプロジェク
ションの形状が変化しても、弁体の圧縮寸法は常に一定
であり、安全装置の作動圧を一定に保つことが可能であ
る。Function: According to this structure, the welding strength can be increased by providing a projection on the flange portion of the terminal cap, and the protrusion provided at the intersection of the cylindrical portion and the flange portion of the terminal cap is a hollow rivet. Since it is in contact with the head, even if the shape of the projection changes due to spot welding, the compression dimension of the valve body is always constant, making it possible to keep the operating pressure of the safety device constant.
実施例 以下、本発明の詳細を図に示す実施例によシ説明する。Example The details of the present invention will be explained below with reference to embodiments shown in the drawings.
第１図は本発明の一実施例による角形密閉電池の主要部
を示す断面図であり、ゴム製の弁体４を内蔵した端子キ
ャップ１０円筒部１亀とフランジ部１ｂとの交差部１０
には下向きに環状の突出部２が設けられ、この突出部２
は中空リベット６の頭部６＆に当接されている。６は、
端子キャップ１と中空リベット６のスポット溶接部であ
シ、プロジェクション（突起）３が設けられている。ま
た中空リベット６は、バッキング８及びワッシャー９を
介して金属製封口蓋７に固定されている。FIG. 1 is a sectional view showing the main parts of a rectangular sealed battery according to an embodiment of the present invention, in which a terminal cap 10 has a built-in rubber valve body 4, a cylindrical portion 1, an intersection portion 10 between a hook and a flange portion 1b, and FIG.
is provided with a downward annular protrusion 2, and this protrusion 2
is in contact with the head 6& of the hollow rivet 6. 6 is
A projection 3 is provided at the spot welded portion between the terminal cap 1 and the hollow rivet 6. Further, the hollow rivet 6 is fixed to the metal sealing lid 7 via a backing 8 and a washer 9.
第２図は第１図に示す主要部を含む角形密閉電池の半裁
断面図であり、発電要素１２を収納した電池缶１１の開
口部を金属製封口蓋７によって封口している。電池缶１
１の開口部と金属製封口蓋７との接合はレーザ溶接１３
で行々われる。発電要素１２の中の正極はリード１ｏに
よって、ワッシャー９を介して端子キャップ１と接続さ
れている。FIG. 2 is a half-cut cross-sectional view of the rectangular sealed battery including the main parts shown in FIG. battery can 1
The opening 1 and the metal sealing lid 7 are joined by laser welding 13.
It will be held in A positive electrode in the power generating element 12 is connected to the terminal cap 1 via a washer 9 by a lead 1o.
第２図に示す本発明による角形密閉電池と、従来の構成
による端子構造を備えた角形密閉電池として（１）第３
図に示すもの。（２）第３図に示すもので、スポット溶
接機の電流値を倍に上げたもの。（３）スポット溶接部
にプロジェクシ胃ンを設けたものの３種類をそれぞれ１
００個試作し、耐漏液性、安全装置の作動圧の安定性、
および耐実装強度の比較を行った。耐漏液性の規準とし
ては、温度６０℃、相対湿度９ｏ％の高温多湿下で１週
間放置し、全数漏れが無ければ合格、安全装置作動圧の
安定性の規準は、全数設定作動圧ＣＴｋＱ／ｄ＞プラス
マイナス１ｋｇ１ｄ以内であれば合格、耐実装強度の規
準は、第４図に示すように矢印ム、Ｂ各々の方向におい
て１０００回ずつ機器あるいは充電器への装脱着を繰り
返し、全数端子キャップが取れなければ合格とした。A prismatic sealed battery according to the present invention shown in FIG. 2 and a prismatic sealed battery equipped with a terminal structure according to the conventional configuration (1)
What is shown in the figure. (2) As shown in Figure 3, the current value of the spot welding machine is doubled. (3) One of each of the three types with a projection gas in the spot welded part.
Prototyped 00 pieces, tested for leakage resistance, stability of safety device operating pressure,
and the mounting strength were compared. The standard for leakage resistance is that all units pass if there is no leakage after being left in a hot and humid environment at a temperature of 60°C and a relative humidity of 9o%.The standard for stability of safety device operating pressure is that all units must meet the set operating pressure CTkQ/ If d > plus or minus 1kg1d, it passes, and the standard for mounting strength is as shown in Figure 4, after repeated attachment and detachment to the device or charger 1000 times in each direction of arrows M and B. If you can't get it, it's considered a pass.
結果を下表に示す。（）内は不良率を示す。The results are shown in the table below. The number in parentheses indicates the defective rate.
従来の構成による端子構造を備えた角形密閉電池におい
て、０）は溶接強度が低く耐実装強度が十分で無い。（
２）は耐実装強度は良かったものの、スポット溶接時の
熱影響により、バッキングおよびゴム弁体が変形し、耐
漏液性、安全装置作動圧の安定性が得られなかった。（
３）はスポット溶接時のプロジェクションの変形により
、ゴム弁体の圧縮寸法が一定せず、結果として安全装置
作動圧の安定性が得られなかった。In the prismatic sealed battery with the conventional terminal structure, the welding strength is low and the mounting strength is insufficient in case 0). (
Although 2) had good mounting strength, the backing and rubber valve body were deformed due to the heat effect during spot welding, and leakage resistance and safety device operating pressure stability were not achieved. (
In case 3), due to the deformation of the projection during spot welding, the compression dimension of the rubber valve body was not constant, and as a result, the stability of the safety device operating pressure could not be obtained.
本発明による角形密閉電池は、耐漏液性、安全装置作動
圧の安定性、耐実装強度において不良の発生は無かった
。The prismatic sealed battery according to the present invention had no defects in leakage resistance, safety device operating pressure stability, and mounting strength.
発明の効果
以上のように本発明によれば、端子キャップに設けられ
たプロジェクションにより、中空リベットとの溶接強度
が増し、しかも端子キャップの円筒部と７う７９部との
交差部に設けられた突出部を中空リベット頭部に当接さ
せることによシ、スポット溶接時にプロジェクシ嘗／が
変形してもゴム弁体の圧縮寸法は一定に確保でき、安全
装置の作動圧を安定させることができる。Effects of the Invention As described above, according to the present invention, the projection provided on the terminal cap increases the welding strength with the hollow rivet, and the projection provided at the intersection of the cylindrical portion and the 79th portion of the terminal cap. By bringing the protrusion into contact with the hollow rivet head, the compression dimension of the rubber valve body can be maintained constant even if the projection head is deformed during spot welding, and the operating pressure of the safety device can be stabilized. can.
第１図は本発明の一実施例による角形密閉電池の主要部
を示す断面図、第２図は第１図に示す主要部を含む角形
密閉電池を示す半裁断面図、第３図は従来の構成による
角形密閉電池の主要部を示す断面図、第４図は第３図に
示す主要部を含む角形密閉電池の外観斜視図、第５図は
従来の角形密閉電池の機器あるいは充電器への装着状況
を示す図である。
１・・・・・・端子キャップ、１＆・・・・・・端子キ
ャップ円筒部、１ｂ・・・・・・端子キャップフランジ
部、１Ｃ・・・・・・円筒部とフランジ部の交差部、２
・・・・・・突出部、３・・・・・・プロジェクション
、４・・・・・・弁体、５・・・・・・スポット溶接部
、６・・・・・・中空リベット、６ａ・・・・・・中空
リベット頭部、７・・・・・・封口蓋、８・・・・・・
バッキング、９・・・・・・ワッシャー、１０・・・・
・・リード、１１・・・・・・電池缶、１２・・・・・
・発電要素、１３・・・・・・レーザ溶接部。
代理人の氏名 弁理士 粟 野 重 孝 ほか１名第３
図
第
図FIG. 1 is a sectional view showing the main parts of a prismatic sealed battery according to an embodiment of the present invention, FIG. 2 is a half-cut sectional view showing a prismatic sealed battery including the main parts shown in FIG. Fig. 4 is a cross-sectional view showing the main parts of the prismatic sealed battery according to the configuration; Fig. 4 is an external perspective view of the prismatic sealed battery including the main parts shown in Fig. 3; Fig. 5 shows how the conventional prismatic sealed battery is connected to equipment or chargers. It is a figure showing a wearing situation. 1... terminal cap, 1&... terminal cap cylindrical part, 1b... terminal cap flange part, 1C... intersection part of cylindrical part and flange part, 2
...Protrusion, 3...Projection, 4...Valve body, 5...Spot weld, 6...Hollow rivet, 6a ...Hollow rivet head, 7...Sealing lid, 8...
Backing, 9...Washer, 10...
...Lead, 11...Battery can, 12...
- Power generation element, 13... Laser welding part. Name of agent: Patent attorney Shigetaka Awano and 1 other person No. 3
Figure diagram
Claims (1)
の交差部を下方に突出させるとともに前記端子キャップ
のフランジ部にプロジェクションを設け、このプロジェ
クション部分でキャップを中空リベット頭部と溶接固着
した端子を備えたことを特徴とする角形密閉電池。The intersection of the cylindrical part of the terminal cap containing the valve body and the flange part is made to protrude downward, and a projection is provided on the flange part of the terminal cap, and the terminal in which the cap is welded and fixed to the hollow rivet head is attached to the projection part. A square sealed battery characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1103826A JPH02281554A (en) | 1989-04-24 | 1989-04-24 | Square sealed battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1103826A JPH02281554A (en) | 1989-04-24 | 1989-04-24 | Square sealed battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02281554A true JPH02281554A (en) | 1990-11-19 |
Family
ID=14364220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1103826A Pending JPH02281554A (en) | 1989-04-24 | 1989-04-24 | Square sealed battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02281554A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0531108U (en) * | 1991-09-27 | 1993-04-23 | 松下電器産業株式会社 | Small sealed battery |
| US5586993A (en) * | 1994-06-03 | 1996-12-24 | Furukawa Denchi Kabushiki Kaisha | Sealed storage battery and manufacturing method thereof |
| JP2005175414A (en) * | 2003-02-10 | 2005-06-30 | Nok Corp | Sealing plate and its manufacturing method |
-
1989
- 1989-04-24 JP JP1103826A patent/JPH02281554A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0531108U (en) * | 1991-09-27 | 1993-04-23 | 松下電器産業株式会社 | Small sealed battery |
| US5586993A (en) * | 1994-06-03 | 1996-12-24 | Furukawa Denchi Kabushiki Kaisha | Sealed storage battery and manufacturing method thereof |
| US5665483A (en) * | 1994-06-03 | 1997-09-09 | Furukawa Denchi Kabushiki Kaisha | Sealed storage battery |
| JP2005175414A (en) * | 2003-02-10 | 2005-06-30 | Nok Corp | Sealing plate and its manufacturing method |
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