JPS5968173A - Battery - Google Patents

Abstract

PURPOSE:To make assembly easy and prevent internal short of a battery by installing an insulating cylinder in a through hole of a positive plate. CONSTITUTION:A positive plate 12, a negative plate 13, and a positive plate 14 are stacked in order with separators 15 interposed in between in a container 11 which also acts as a positive terminal. A conductive pin 16 acting as a negative terminal is projected from a container cover 17 passing through the separators 15 and the positive plate 14. The lower end of the conductive pin 16 is spot- welded with a current collector 18 placed inside the negative plate 13 to connect electrically. An insulating seal 16 is placed between the conductive pin 16 and the container cover 17 to insulate electrically. An insulating cylinder 20 is formed together with the inside edge of a through hole 14a for the conductive pin 16 of the positive plate 14. A hole is formed in the center of the positive plate, then the insulating cylinder 20 comprising a ''Teflon'' tube is placed in the center of the hole, and they are pressed together to make one body.

Description

【発明の詳細な説明】 本発明は、導電ピンの絶縁構造を改良した電池に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a battery in which the insulation structure of conductive pins is improved.

従来この種の電池として第１図に示すものがある。A conventional battery of this type is shown in FIG.

この電池は、正極端子を兼ねる容器１内に正極板２．負
極板３及び正極板４をセパレータ５゜５を介して順に積
層し、負極端子である導電ビン６をセパ１ノータ５及び
正極板４を貫通して容器蓋７から突出せしめている。そ
して正極板２゜４を容器１の内壁に接触させて、これら
の電気的接続をなし、又負極板３内に配置した集電体８
と導′屯ｔン６の下端とをスポット溶接してこれらの電
気的接続をなしている。This battery has a positive electrode plate 2. A negative electrode plate 3 and a positive electrode plate 4 are laminated in order with a separator 55 interposed therebetween, and a conductive bottle 6 serving as a negative electrode terminal passes through the separator 1 node 5 and the positive electrode plate 4 and projects from the container lid 7. The positive electrode plate 2゜4 is brought into contact with the inner wall of the container 1 to establish an electrical connection between them, and the current collector 8 disposed inside the negative electrode plate 3
and the lower end of the conductive tunnel 6 are spot welded to form an electrical connection between them.

ここで上記等電ビン６は、正極板４及び容器蓋７を貫通
するため、容器蓋７との間に絶縁シール９を介在してい
る。又導電ピン６の周面のうち正極板４を貫通する個所
に絶縁筒１０を被覆し、正極板４に透孔４ａを設けて、
導電ピン６と正極板４及び容器蓋７との絶縁を図ってい
る。Here, since the isoelectric bottle 6 penetrates through the positive electrode plate 4 and the container lid 7, an insulating seal 9 is interposed between the isoelectric bottle 6 and the container lid 7. In addition, an insulating cylinder 10 is coated on the circumferential surface of the conductive pin 6 at a portion that penetrates the positive electrode plate 4, and a through hole 4a is provided in the positive electrode plate 4.
The conductive pin 6 is insulated from the positive electrode plate 4 and the container lid 7.

しかし導電ピン６は、電池容器内容積と放電容量とを考
慮して、小径（一般には２　ｍｍφ以下）のものが用い
られている。このため絶縁筒１０を被覆する作業が煩雑
となり作業性が悪い。導電ピン６を絶縁する別の方法と
して、局面に絶縁層を形成する方法もあるが、この場合
正極板４の透孔４ａに対向する個所に形成しなければな
らず１作業が煩雑となる。However, the conductive pin 6 has a small diameter (generally 2 mmφ or less) in consideration of the internal volume of the battery container and the discharge capacity. For this reason, the work of covering the insulating cylinder 10 is complicated and work efficiency is poor. Another method for insulating the conductive pins 6 is to form an insulating layer on the curved surface, but in this case, the insulating layer must be formed at a location facing the through hole 4a of the positive electrode plate 4, which makes the process complicated.

またとのように組立てられた’＃ｔ　７１ＪＪは、極板
の成形くずれ一組立時の極板のずれにより内部ショート
のおそれがある。更に放電時にＩＥ極板４が変形膨張す
ると一透孔４ａがたれ負極板３と接触し°ＣＩｒＪＣＩ
ｒ−トするおそれがある。Also, with the '#t 71JJ assembled as shown above, there is a risk of internal short-circuiting due to molding failure of the electrode plate and displacement of the electrode plate during assembly. Furthermore, when the IE electrode plate 4 deforms and expands during discharge, the through hole 4a sags and comes into contact with the negative electrode plate 3.
There is a risk of r-t.

本発明は、上記問題を解決すべくなされたものでその目
的とするところは、正極板の透孔に絶縁筒体を設げるこ
とにより一組立作業が容易となり、更に内部ショートを
防１卜することができる電池を得んとするものである。The present invention has been made to solve the above problems, and its purpose is to facilitate assembly by providing an insulating cylinder in the through hole of the positive electrode plate, and to prevent internal short circuits. The aim is to obtain a battery that can

すなわち本発明は、一方の端子を兼ねる容器と、同容器
にセパレータを介して収容された３枚以上の正負極板と
、極板を貫通した他方の端子である導電ピンとを具備し
た電池において。That is, the present invention provides a battery that includes a container that also serves as one terminal, three or more positive and negative electrode plates housed in the container via a separator, and a conductive pin that penetrates the electrode plate and serves as the other terminal.

容器を端子としかつ導電ビンが貫通する極板は、導電ビ
ンが貫通ずる透孔の内縁部に絶縁筒体を一体成形してい
ることを特徴とする。The electrode plate having the container as a terminal and through which the conductive bottle passes is characterized in that an insulating cylindrical body is integrally molded on the inner edge of the through hole through which the conductive bottle passes.

以下本発明を図示する実施例を参照して説明極板１２．
負極板１３及び正極板１４をセ／４’ｌ／　−タ１５．
１５を介して順に積層し、負極端子である導電ビンＩ”
６をモノぞ１ノータ１５及び正極板１４を貫；ｊｉｂて
容器蓋１７から突出せしめている。そして正極板Ｙ２　
、１４を容器ｌノの内壁に接触させて、これらの電気的
接続をなし、又負極板１３内に配置１．た集′串：体１
８と導電ビン１６の下端とをスポット溶接して、これら
の′電気的接続をｆ、ｒ　’Ｌ、ている。The invention will now be described with reference to embodiments illustrating the plate 12.
Separate the negative electrode plate 13 and the positive electrode plate 14.
15, and a conductive bottle I" which is a negative terminal.
6 is passed through the node 15 and the positive electrode plate 14 and protrudes from the container lid 17. and positive electrode plate Y2
. Tashu'kushi: body 1
8 and the lower end of the conductive bottle 16 are spot welded to make these electrical connections.

ここで上記導電ピン１６は、容器蓋１７との間に絶縁シ
ール１９を介装して、電気的絶縁を図っている。また、
導電ビンノロが貫通ずる正極板Ｊ４は、導電ビン貫７１
η用テ３孔）４ａの内縁部に絶縁筒体２０を一体成形し
ている。この絶縁筒体２０は、テフロンチューブ等から
なり。Here, an insulating seal 19 is interposed between the conductive pin 16 and the container lid 17 for electrical insulation. Also,
The positive electrode plate J4 through which the conductive bottle groove passes is the conductive bottle hole 71.
An insulating cylindrical body 20 is integrally molded on the inner edge of the η hole (3) 4a. This insulating cylinder 20 is made of a Teflon tube or the like.

止剤合剤の中心に孔を形成して一孔中央に絶縁筒体２０
を置き、陽画合剤と一緒に加圧成形することにより、一
体となる。A hole is formed in the center of the inhibitor mixture, and an insulating cylinder 20 is placed in the center of the hole.
By placing them together and press-molding them together with a positive paint mixture, they become a single piece.

この電池によれば、正極板１４に絶縁筒体２０を設けて
いるので、導電ビン１６に絶縁筒１０を被覆する必要が
なくなり、珀雑な作業が不用となる。しかも絶縁筒体２
０の肉厚を強度の許すかぎり薄くすれば、透孔１４ａの
内径を大きくできる。このための導電ピン１６を透孔１
４ａに通す作業が容易となり１組立作業性が向上する。According to this battery, since the insulating cylinder 20 is provided on the positive electrode plate 14, there is no need to cover the conductive bottle 16 with the insulating cylinder 10, and complicated work becomes unnecessary. Moreover, the insulating cylinder 2
If the wall thickness of the hole 14a is made as thin as the strength allows, the inner diameter of the through hole 14a can be increased. For this purpose, insert the conductive pin 16 into the through hole 1.
4a becomes easier, and the efficiency of assembly work is improved.

更に絶縁筒体２０は、正極板１４と一体成形されるので
一正極板１４の加圧成形時に透孔１４ａの成形くずれを
防止する。また放電中において径方向の変形を規制する
。このため組立時、放電時に極板聞忘が接触することが
なく、内部ショートを防止することができる。Furthermore, since the insulating cylinder 20 is integrally molded with the positive electrode plate 14, it prevents the through hole 14a from being deformed during pressure molding of the positive electrode plate 14. It also restricts radial deformation during discharge. Therefore, during assembly and discharge, the electrode plates do not come into contact with each other, and internal short circuits can be prevented.

なお１本発明け３枚の正負極板を設けたものに限らず、
４枚以上の正負極板を設けた電池にも適用できる。また
容器が負極端子を兼ねる電池にも適用できる。Note that the present invention is not limited to the one provided with three positive and negative electrode plates.
It can also be applied to batteries with four or more positive and negative electrode plates. It can also be applied to batteries in which the container also serves as a negative terminal.

以上説明したように本発明によれば、導電ビン側を絶縁
する従来のものに代えて、正極板側を絶縁するようにし
たので１組立伍業性が向上し、内部ショートを防止でき
る顕著な効果を奏する。As explained above, according to the present invention, the positive electrode plate side is insulated instead of the conventional one insulating the conductive bottle side, which improves the ease of assembly and prevents internal short circuits. be effective.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の′電池のｌノ１曲図、第２図は本発明の
一実施例を示す電池の断面図である。 Ｊ、１１・・・容器、２，１２・・・正極板、３゜１３
・・・負極板−４，１４・・・正極板−５，１５・・・
セＡ＋／−夕−’６　、１６・・・導電ビン、２，１７
・・・容器蓋、８，１８・・・集電体、９，１９・・・
絶縁シール、１０・・・絶縁筒、２０・・・絶縁筒体出
願人代理人　　弁理士　鈴江式彦FIG. 1 is a first section view of a conventional battery, and FIG. 2 is a sectional view of a battery showing an embodiment of the present invention. J, 11... Container, 2, 12... Positive electrode plate, 3°13
...Negative electrode plate-4, 14...Positive electrode plate-5, 15...
SeA+/-Yu-'6, 16... Conductive bottle, 2, 17
... Container lid, 8, 18... Current collector, 9, 19...
Insulating seal, 10... Insulating tube, 20... Insulating tube Applicant's agent Patent attorney Shikihiko Suzue

Claims (1)

【特許請求の範囲】 一方の端子を兼ねる容器と、同容器にセパレータを介し
て収容された３枚以上の正負極板と。 極板を貫通した他方の端子である導電ピンとを具備した
電池において、容器を端子としかつ導電ビンが貫通する
極板は、導電ビン貫通透孔の内縁部に絶縁筒体を一体成
形していることを特徴とする電池。[Claims] A container that also serves as one terminal, and three or more positive and negative electrode plates housed in the container with a separator interposed therebetween. In a battery equipped with a conductive pin which is the other terminal passing through the electrode plate, the electrode plate which uses the container as the terminal and is penetrated by the conductive bottle has an insulating cylindrical body integrally molded on the inner edge of the conductive bottle through-hole. A battery characterized by: