JPH0132678Y2 - - Google Patents
Info
- Publication number
- JPH0132678Y2 JPH0132678Y2 JP1983169054U JP16905483U JPH0132678Y2 JP H0132678 Y2 JPH0132678 Y2 JP H0132678Y2 JP 1983169054 U JP1983169054 U JP 1983169054U JP 16905483 U JP16905483 U JP 16905483U JP H0132678 Y2 JPH0132678 Y2 JP H0132678Y2
- Authority
- JP
- Japan
- Prior art keywords
- battery
- battery element
- insulator
- terminal cover
- metal
- 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
Links
- 229910052751 metal Inorganic materials 0.000 claims description 31
- 239000002184 metal Substances 0.000 claims description 31
- 239000012212 insulator Substances 0.000 claims description 19
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 13
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000012856 packing Methods 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Description
【考案の詳細な説明】
本考案は密閉形アルカリ蓄電池の改良に関する
もので、特に耐震性、耐衝撃性向上を目的として
いる。[Detailed Description of the Invention] The present invention relates to the improvement of a sealed alkaline storage battery, and is particularly aimed at improving earthquake resistance and impact resistance.
従来この種の電池は金属容器が負、端子蓋が正
の極性を有する様に構成されるものである。すな
わち、金属容器に収容された電池要素のうち、負
極板はリード用金属板を介して該容器の底部に接
続され、正極板はリード用金属板を介して金属容
器の開口部にパツキンを介して気密を保つように
かしめられた端子蓋に接続されるものである。ま
た、電池要素は金属容器への挿入を容易にするた
め、金属容器の内径よりも十分に小さい外径寸法
を有するものである。したがつて、金属容器の内
壁と電池要素との間には少なからず空隙が生じて
いる。この様な構造であるため、該電池をモータ
ーの駆動源とする用途、例えば電動工具等の携帯
用機器に使用する場合においては、モーターによ
る振動が該電池に伝わり、金属容器内で電池要素
が該空隙の間で共振する現象が生ずる。その際、
正負極板とリード用金属板との接続部あるいはリ
ード用金属板と金属容器、端子蓋との接続部に繰
返し応力が加わり、ついには疲労破壊により接続
部が剥れ、電池として機能しなくなるという欠点
を有していた。特に該接続部をスポツト溶接によ
り形成したものに顕著であつた。また、正極板の
リード用金属板は端子蓋との接続部が剥れた場
合、金属容器に接触することによつて電池が短絡
され、瞬間的に大電流が流れるため異常に電池が
発熱して引火したり、内圧の急上昇により爆発す
る危険性を有していた。また、電池を床面に落下
させる等の衝撃を与えることによつても同様の欠
点を有していた。 Conventionally, this type of battery is constructed such that the metal container has negative polarity and the terminal cover has positive polarity. That is, of the battery elements housed in a metal container, the negative electrode plate is connected to the bottom of the container via the lead metal plate, and the positive electrode plate is connected to the opening of the metal container via the lead metal plate through a packing. It is connected to a terminal cover that is caulked to maintain airtightness. Further, in order to facilitate insertion into the metal container, the battery element has an outer diameter that is sufficiently smaller than the inner diameter of the metal container. Therefore, a considerable amount of space is created between the inner wall of the metal container and the battery element. Because of this structure, when the battery is used as a drive source for a motor, for example in a portable device such as a power tool, vibrations from the motor are transmitted to the battery, causing the battery element to be damaged inside the metal container. A phenomenon of resonance occurs between the gaps. that time,
Repeated stress is applied to the connection between the positive and negative electrode plates and the lead metal plate, or the connection between the lead metal plate and the metal container and terminal cover, which eventually causes the connection to peel due to fatigue fracture, and the battery no longer functions. It had drawbacks. This was particularly noticeable when the connection portion was formed by spot welding. In addition, if the metal plate for the lead of the positive electrode plate comes into contact with the terminal cover and comes into contact with the metal container, the battery will be short-circuited and a large current will flow momentarily, causing the battery to heat up abnormally. There was a risk of ignition or explosion due to a sudden rise in internal pressure. Further, the same drawback occurs when a shock is applied to the battery, such as by dropping it on the floor.
したがつて本考案の目的とするところは、上記
欠点を除去し、耐震性、耐衝撃性に優れた密閉形
アルカリ蓄電池を提供することにある。 Therefore, an object of the present invention is to eliminate the above-mentioned drawbacks and provide a sealed alkaline storage battery with excellent earthquake resistance and impact resistance.
本考案の要点とするところは、端子蓋と電池要
素との間に電池要素の外縁部を覆う屈折部を下面
部に有し、正極板のリード用金属板の周囲を取り
囲むように配置され且つ端子蓋によつて押圧され
た環状凸部を上面部に有する絶縁体を介在させる
点にある。絶縁体の該屈折部は電池要素と金属容
器の内壁との空隙の一部を埋め、振動、衝撃によ
る電池要素の運動を阻止すると同時に、端子蓋を
金属容器にかしめて電池の気密を保つ操作におい
て絶縁体の該環状凸部が押圧されることによつて
電池要素をも押圧、固定せしめ、振動、衝撃によ
る電池要素の運動を阻止するものである。また、
絶縁体の環状凸部は正極板のリード用金属板の周
囲を取り囲むように配置するので、端子蓋とリー
ド用金属板との接続が剥れ、リード用金属板が金
属容器に接触して電池が短絡するということもな
くなる。ここで絶縁体の該屈折部の先端を鋭角に
することがより望ましい。なぜなら、該絶縁体を
電池要素の上に導入することが容易であるし、電
池要素の外径寸法の微妙な変化に対しても屈折部
の先端の鋭角に構成されたいずれかの部分で該空
隙を埋め得るからである。また、絶縁体は屈折部
と環状凸部とが一体に成形されたものであつても
よいし、両者を別個に成形し、それらを組合わせ
て用いてもよい。 The main point of the present invention is that the terminal cover and the battery element have a bent part on the lower surface part that covers the outer edge of the battery element, and is arranged so as to surround the lead metal plate of the positive electrode plate. The point is that an insulator having an annular convex portion pressed by the terminal cover on the upper surface is interposed. The bent portion of the insulator partially fills the gap between the battery element and the inner wall of the metal container, preventing movement of the battery element due to vibrations and shocks, and at the same time, crimping the terminal cover onto the metal container to maintain the airtightness of the battery. When the annular convex portion of the insulator is pressed, the battery element is also pressed and fixed, thereby preventing movement of the battery element due to vibration or impact. Also,
The annular convex part of the insulator is arranged so as to surround the lead metal plate of the positive electrode plate, so the connection between the terminal cover and the lead metal plate may be separated, and the lead metal plate may come into contact with the metal container, causing damage to the battery. This also eliminates the possibility of short circuits. Here, it is more desirable that the tip of the bent portion of the insulator be at an acute angle. This is because it is easy to introduce the insulator onto the battery element, and even if there is a slight change in the outer diameter of the battery element, the insulator can be applied at any part formed at an acute angle at the tip of the bent part. This is because it can fill the void. Further, the insulator may be one in which the bending part and the annular convex part are integrally molded, or they may be molded separately and used in combination.
次に本考案の一実施例を図面に基づいて説明す
る。 Next, one embodiment of the present invention will be described based on the drawings.
第１図は本考案による密閉形アルカリ蓄電池の
要部断面図を、第２図は第１図における絶縁体の
平面図を示した。 FIG. 1 is a sectional view of the main parts of a sealed alkaline storage battery according to the present invention, and FIG. 2 is a plan view of the insulator in FIG. 1.
該電池は円筒状の金属容器１の内部に電池要素
２を収容し、金属容器１の開口部において、排気
弁３′を有する金属蓋３が該金属蓋に射出成形に
より形成されたポリアミドあるいはポリプロピレ
ン製のゴム質パツキン４を介してかしめられて気
密を保つている。電池要素２の正極板はリード用
金属板５によつて金属蓋３にスポツト溶接により
接続されており、負極板はリード用金属板６によ
つて金属容器１に同様に接続されている。したが
つて、金属蓋３は正、金属容器１は負の極性を有
している。本考案における絶縁体７は金属蓋３と
電池要素２の間に介在して、電池要素２の外縁部
を覆い、且つ金属容器１と電池要素２との間に生
じた空隙８の一部を埋める様な屈折部７′を有し
ている。また絶縁体７は金属蓋３がパツキン４を
介して金属容器１にかしめられる際、金属蓋３に
よつて押圧される環状凸部７″を有している。該
凸部７″は第２図に示す様にリード用金属板５を
取り囲むように筒状に形成される。該凸部７″が
押圧されることによつて電池要素２もまた押圧さ
れ、該屈折部７′の効果と相乗して電池要素２を
固定せしめるものである。また絶縁体７は環状凸
部７″の内側に貫通孔７を有している。該貫通
孔７は、これを通してリード用金属板５が導入
されるし、電池要素２で発生するガスを排気弁に
導く役目もする。該絶縁体７はポリプロピレン製
であるが、電気的絶縁性を有する材料ならばどん
なものでも良い。 The battery houses a battery element 2 inside a cylindrical metal container 1, and at the opening of the metal container 1, a metal lid 3 having an exhaust valve 3' is formed on the metal lid by injection molding made of polyamide or polypropylene. It is swaged through a rubber gasket 4 made of aluminum to maintain airtightness. The positive electrode plate of the battery element 2 is connected to the metal lid 3 through a lead metal plate 5 by spot welding, and the negative electrode plate is similarly connected to the metal container 1 through a lead metal plate 6. Therefore, the metal lid 3 has positive polarity and the metal container 1 has negative polarity. The insulator 7 in the present invention is interposed between the metal lid 3 and the battery element 2, covers the outer edge of the battery element 2, and fills a part of the gap 8 created between the metal container 1 and the battery element 2. It has a refractive portion 7' that fills the area. The insulator 7 also has an annular protrusion 7'' that is pressed by the metal lid 3 when the metal lid 3 is caulked to the metal container 1 via the packing 4. As shown in the figure, it is formed into a cylindrical shape so as to surround the lead metal plate 5. When the convex portion 7'' is pressed, the battery element 2 is also pressed, and the effect of the bent portion 7' is combined with the effect of the bent portion 7' to fix the battery element 2. 7'' has a through hole 7 inside. The lead metal plate 5 is introduced through the through hole 7, and also serves to guide gas generated in the battery element 2 to the exhaust valve. The insulator 7 is made of polypropylene, but any material having electrical insulation properties may be used.
本考案は以上の様な構成であるため、前記の如
く該電池に対し振動や衝撃力が加わつても、電池
要素の運動が阻止され、リード用金属板の接続部
での剥れがなくなる等の効果を有し、実用的価値
甚だ大なるものである。 Since the present invention has the above-described structure, even if vibration or impact force is applied to the battery as described above, the movement of the battery element is prevented, and the metal plate for the lead does not peel off at the connection part. It has great practical value.
第１図は本考案の一実施例を示す要部断面図、
第２図は第１図における絶縁体の平面図である。
１は金属容器、２は電池要素、３は金属蓋、４
はパツキング、５は正極板のリード用金属板、６
は負極板のリード用金属板、７は絶縁体、７′は
絶縁体の屈折部、７″は絶縁体の環状凸部、７″は
絶縁体の貫通孔、８は空隙。
FIG. 1 is a cross-sectional view of essential parts showing an embodiment of the present invention;
FIG. 2 is a plan view of the insulator in FIG. 1. 1 is a metal container, 2 is a battery element, 3 is a metal lid, 4
is the packing, 5 is the metal plate for the lead of the positive electrode plate, 6
7 is an insulator, 7' is a bent portion of the insulator, 7'' is an annular convex portion of the insulator, 7'' is a through hole in the insulator, and 8 is a gap.
Claims (1)
にパツキンを介して気密を保つようにかしめら
れた端子蓋を有する密閉形アルカリ蓄電池にお
いて、端子蓋と電池要素との間に、電池要素の
外縁部を覆う屈折部を下面部に有し、正極板の
リード用金属板の周囲を取り囲むように配置さ
れ且つ端子蓋によつて押圧された環状凸部を上
面部に有する絶縁体を備えた密閉形アルカリ蓄
電池。 (2) 絶縁体における電池要素の外縁部を覆う屈折
部の先端が鋭角である実用新案登録請求の範囲
第１項記載の密閉形アルカリ蓄電池。[Scope of Claim for Utility Model Registration] (1) In a sealed alkaline storage battery that has a terminal cover that is swaged airtight through a gasket to the opening of a metal container that houses a battery element, the terminal cover and battery between the battery element and the battery element, the lower surface has a bent part that covers the outer edge of the battery element, the annular convex part is arranged so as to surround the lead metal plate of the positive electrode plate, and is pressed by the terminal cover. A sealed alkaline storage battery with an insulator on the top surface. (2) The sealed alkaline storage battery according to claim 1, wherein the tip of the bent part covering the outer edge of the battery element in the insulator has an acute angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983169054U JPS6075958U (en) | 1983-10-31 | 1983-10-31 | Sealed alkaline storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983169054U JPS6075958U (en) | 1983-10-31 | 1983-10-31 | Sealed alkaline storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6075958U JPS6075958U (en) | 1985-05-28 |
| JPH0132678Y2 true JPH0132678Y2 (en) | 1989-10-05 |
Family
ID=30369420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983169054U Granted JPS6075958U (en) | 1983-10-31 | 1983-10-31 | Sealed alkaline storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6075958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010512638A (en) * | 2006-12-11 | 2010-04-22 | エルジー・ケム・リミテッド | Bend-shaped lithium-ion battery with improved safety |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2580947Y2 (en) * | 1992-09-17 | 1998-09-17 | 富士電気化学株式会社 | Spiral lithium battery |
| KR100686841B1 (en) | 2005-05-18 | 2007-02-26 | 삼성에스디아이 주식회사 | Li Secondary Battery |
| JP5322511B2 (en) * | 2008-06-25 | 2013-10-23 | パナソニック株式会社 | Cylindrical sealed battery |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5214893U (en) * | 1975-07-16 | 1977-02-02 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6017786Y2 (en) * | 1980-11-28 | 1985-05-30 | 松下電器産業株式会社 | sealed storage battery |
-
1983
- 1983-10-31 JP JP1983169054U patent/JPS6075958U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5214893U (en) * | 1975-07-16 | 1977-02-02 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010512638A (en) * | 2006-12-11 | 2010-04-22 | エルジー・ケム・リミテッド | Bend-shaped lithium-ion battery with improved safety |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6075958U (en) | 1985-05-28 |
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