JP3129628U - Alkaline storage battery - Google Patents

Abstract

【課題】アルカリ蓄電池、特に、極柱端子の製造方法に関して、端子部と集電部とを固定し支持するための支持具が各々必要とせず、また、端子部と集電部との接合を容易に、且つ確実に行うことができるアルカリ蓄電池を提供する。
【解決手段】端子部１１と集電部１５からなる極柱端子１を有するアルカリ蓄電池において、前記端子部はその下端部１２に凹部１３を備え、この凹部には前記集電部の一部が嵌合されていると共に、前記端子部と前記集電部が互いに溶接されてなる極柱端子を有することを特徴とするアルカリ蓄電池。
【選択図】図１The present invention relates to a method of manufacturing an alkaline storage battery, in particular, a pole pole terminal, which does not require a support for fixing and supporting the terminal part and the current collecting part, and also joining the terminal part and the current collecting part. Provided is an alkaline storage battery that can be easily and reliably performed.
In an alkaline storage battery having a pole terminal comprising a terminal part and a current collecting part, the terminal part is provided with a concave part at a lower end part, and a part of the current collecting part is provided in the concave part. An alkaline storage battery characterized in that the alkaline storage battery is fitted and has a pole column terminal formed by welding the terminal part and the current collecting part to each other.
[Selection] Figure 1

Description

本考案は、ニッケル−カドミウム蓄電池、ニッケル−水素蓄電池等のアルカリ蓄電池、特に、アルカリ蓄電池の極柱端子に関するものである。 The present invention relates to an alkaline storage battery such as a nickel-cadmium storage battery or a nickel-hydrogen storage battery, and more particularly to a pole column terminal of an alkaline storage battery.

従来、ニッケル−カドミウム蓄電池やニッケル−水素蓄電池等に代表されるアルカリ蓄電池は、充放電の可逆性に優れ、高出力かつ高容量であり、携帯電話や電動工具のような小型機器の動力源として用いられるだけでなく、電気自動車やハイブリッド自動車の大型動力源としても活用されている。これらのアルカリ蓄電池は、一般に、水酸化ニッケルを主材料として含むニッケル正極、水酸化カドミウム、水素吸蔵合金等を主材料として含む負極、前記正極と負極との間に介在するセパレータからなる極板群を電槽内に配置し、正極及び負極と電気的に接続された極柱端子が電槽内から電槽蓋を貫通して、電槽外に極柱の一部が突出して電流を取り出すという構造を多く採用している。この場合の極柱端子の材質としては、ニッケル、ニッケル合金、鉄、鋼材等が広く使用されている。 Conventionally, alkaline storage batteries represented by nickel-cadmium storage batteries and nickel-hydrogen storage batteries have excellent charge / discharge reversibility, high output and high capacity, and are used as power sources for small devices such as mobile phones and power tools. In addition to being used, it is also used as a large power source for electric and hybrid vehicles. These alkaline storage batteries generally include a nickel positive electrode containing nickel hydroxide as a main material, a negative electrode containing cadmium hydroxide, a hydrogen storage alloy, or the like as a main material, and a separator group interposed between the positive electrode and the negative electrode. The pole pole terminal electrically connected to the positive electrode and the negative electrode penetrates the battery case lid from the inside of the battery case, and a part of the pole column protrudes out of the battery case to extract current. Adopts many structures. In this case, nickel, nickel alloy, iron, steel, etc. are widely used as the material for the pole terminal.

アルカリ蓄電池は図２に示すように、正極板３１とセパレータ３３と負極板３２とを所定枚数交互に積層してなる極板群３を収容した電槽２に電槽蓋２１を接合し、これに所定量の電解液を注入して構成されるものであり、該電槽蓋２１に正極または負極の極柱端子１の挿通孔２２が設けられており、挿通孔２２を介し正極および負極の極柱端子１が挿通されている。
なお、図中、２３は挿通した極柱端子１と電槽蓋間に設けられたＯリング、２４は挿通した極柱端子１を電槽蓋２１へ固定する為のステンレス製の平座金、２５は電槽蓋２１の中央開口部に螺着された安全弁装置で、この開口部から電解液を注入した後に安全弁装置２５は取り付けられる。３４は正極板３１または負極板３２から導出した耳（タブ）である。 As shown in FIG. 2, the alkaline storage battery has a battery case lid 21 joined to a battery case 2 containing an electrode plate group 3 in which a predetermined number of positive electrode plates 31, separators 33, and negative electrode plates 32 are alternately stacked. A predetermined amount of electrolytic solution is injected into the battery case 21, and the battery case lid 21 is provided with an insertion hole 22 for the positive or negative electrode pole terminal 1, and the positive electrode and the negative electrode are inserted through the insertion hole 22. The pole terminal 1 is inserted.
In the figure, 23 is an O-ring provided between the inserted pole column terminal 1 and the battery case lid, 24 is a stainless steel flat washer for fixing the inserted pole column terminal 1 to the battery case lid, 25 Is a safety valve device screwed into the central opening of the battery case lid 21 and the safety valve device 25 is attached after injecting the electrolyte from this opening. Reference numeral 34 denotes an ear (tab) derived from the positive electrode plate 31 or the negative electrode plate 32.

これらアルカリ蓄電池の極柱端子１は、従来、図３に示すように、端子部１１と逆Ｕ字状の集電部１５から構成されており、該端子部１１の下端部１２と該集電部１５の上端部１６をアルゴン溶接等の溶接を施すことで接合されている。そして、端子部１１の下端部１２と集電部１５の上端部１６とが接合された極柱端子１は、正極板３１と負極板３２と、この間に介在するセパレータ３３からなる極板群３の正極板３１群または負極板３２群から導出した耳（タブ）３４を集電部１５の逆Ｕ字内に挿入して互いにスポット溶接等により接合する構成が公知である（特許文献１）。 As shown in FIG. 3, the pole terminal 1 of these alkaline storage batteries is conventionally composed of a terminal portion 11 and an inverted U-shaped current collecting portion 15, and a lower end portion 12 of the terminal portion 11 and the current collecting portion. The upper end portion 16 of the portion 15 is joined by performing welding such as argon welding. The pole terminal 1 in which the lower end portion 12 of the terminal portion 11 and the upper end portion 16 of the current collecting portion 15 are joined is an electrode plate group 3 including a positive electrode plate 31, a negative electrode plate 32, and a separator 33 interposed therebetween. A configuration is known in which ears (tabs) 34 derived from the positive electrode plate 31 group or the negative electrode plate 32 group are inserted into the inverted U-shape of the current collector 15 and joined together by spot welding or the like (Patent Document 1).

実開昭５１‐１３００２０号公報Japanese Utility Model Publication No. 51-130020

しかしながら、特許文献１に記載されるアルカリ蓄電池は、極柱を構成する極柱端子部（端子部）１と該極柱端子部１の下部に設けられた集電部１５は、図３に示されるように極柱端子１の下端部１２と集電部１５の上端部１６を溶接によって一体に接合している。該極柱端子１部と該集電部１５とを溶接によって一体に接合する場合、該極柱端子１部と該集電部１５とを固定し支持するための支持具が各々必要となるため、部品点数が増え設備が複雑となってしまう。 However, the alkaline storage battery described in Patent Document 1 includes a pole column terminal portion (terminal portion) 1 constituting a pole column and a current collector 15 provided at a lower portion of the pole column terminal portion 1 as shown in FIG. As shown, the lower end 12 of the pole terminal 1 and the upper end 16 of the current collector 15 are joined together by welding. When the pole column terminal 1 and the current collector 15 are joined together by welding, a support for fixing and supporting the pole column terminal 1 and the current collector 15 is required. The number of parts increases and the equipment becomes complicated.

このような背景の下、端子部と集電部とを固定し支持するための支持具が各々必要とせず、確実に接合を行うことができるアルカリ蓄電池を提供することが望まれる。   Under such a background, it is desired to provide an alkaline storage battery that does not require a support for fixing and supporting the terminal portion and the current collector, and that can be reliably joined.

本考案は、端子部と集電部からなる極柱端子を有するアルカリ蓄電池において、前記端子部はその下端部に凹部を備え、この凹部には前記集電部の一部が嵌合されていると共に、前記端子部と前記集電部が互いに溶接されてなる極柱端子を有することを特徴とするものである。 The present invention provides an alkaline storage battery having a pole column terminal comprising a terminal part and a current collecting part, wherein the terminal part is provided with a recess at a lower end thereof, and a part of the current collecting part is fitted in the recess. In addition, the terminal part and the current collector part have pole pole terminals that are welded to each other.

本考案は、端子部と集電部からなる極柱端子において、該端子部の下端部に凹部を形成することで、端子部と集電部とを固定するための支持具を端子部のみとすることができ、溶接の際の部品点数を削減することが可能である。 The present invention provides a pole pole terminal composed of a terminal part and a current collecting part, by forming a recess at the lower end part of the terminal part, so that a support for fixing the terminal part and the current collecting part is a terminal part only. It is possible to reduce the number of parts during welding.

以下に本考案の実施の形態を説明する。本考案のアルカリ蓄電池の構成は図２の従来もものと変りは無い。本考案はこの従来のアルカリ蓄電池の構成の内、特に極注端子１を改良したものであり、その構成を図１に示し、これに基づき説明する。図１は、本考案の一実施形態を示すアルカリ蓄電池の極柱部分を示す正面図である。   Embodiments of the present invention will be described below. The configuration of the alkaline storage battery of the present invention is the same as that of the conventional one in FIG. The present invention is an improved version of the conventional alkaline storage battery, particularly the pole injection terminal 1, which is shown in FIG. 1 and will be described based on this. FIG. 1 is a front view showing a pole portion of an alkaline storage battery showing an embodiment of the present invention.

図１に示す通り、本考案の極柱端子１は端子部１１と集電部１５とを接合することは従来と変わりはない。本考案によれば、この極柱端子１の端子部１１の下端部１２に凹部１３を形成し、該端子部１１の下端部１２に形成された凹部１３に集電部１５の上端部１６を挿入・嵌合したことが従来と相違する。 As shown in FIG. 1, the pole column terminal 1 of the present invention is the same as the prior art in that the terminal portion 11 and the current collecting portion 15 are joined. According to the present invention, the concave portion 13 is formed in the lower end portion 12 of the terminal portion 11 of the pole terminal 1, and the upper end portion 16 of the current collecting portion 15 is formed in the concave portion 13 formed in the lower end portion 12 of the terminal portion 11. The insertion / fitting is different from the conventional one.

まず、本考案にかかる端子部１１について説明する。該端子部１１は材質がニッケルメッキを施した鉄であり、その形状は大きさの異なる２つの略円柱を縦に繋ぎ合わせた形状であり、上部は下部に比し略円柱の高さおよび面積が小さく、旋盤により切削加工を施すことで形成可能である。該端子部１１の下端部１２中央には、所望の大きさの凹部１３を旋盤により切削加工を施してある。そして、下端部１２に凹部１３が設けられた端子部１１の上部中央内周面には、所望の大きさの螺子溝１４が同様に切削加工により形成されている。 First, the terminal part 11 concerning this invention is demonstrated. The terminal portion 11 is made of nickel-plated iron, and the shape thereof is a shape in which two substantially circular cylinders having different sizes are vertically connected, and the upper portion has a substantially cylindrical height and area as compared with the lower portion. Can be formed by cutting with a lathe. A recess 13 having a desired size is cut by a lathe at the center of the lower end 12 of the terminal 11. And the screw groove 14 of a desired magnitude | size is similarly formed by cutting in the upper center inner peripheral surface of the terminal part 11 with which the recessed part 13 was provided in the lower end part 12. FIG.

次に、本考案にかかる集電部１５について説明する。該集電部１５は、端子部１１と同様に材質がニッケルメッキを施した鉄であり、その形状は平板を所望の大きさとなるよう方形に裁断し、該平板をＵ字状に折り曲げることで作製する。なお、平板の切断面はバリ等が残らないように機械研磨を施してある。 Next, the current collector 15 according to the present invention will be described. The current collector 15 is made of nickel-plated iron like the terminal 11, and the shape of the current collector 15 is cut into a rectangular shape so as to have a desired size, and the flat plate is bent into a U shape. Make it. The flat cut surface is mechanically polished so that no burrs or the like remain.

そして、前記するように夫々作製した端子部１１と集電部１５の溶接を行うことで端子部１１と集電部１５（この場合、集電部１５の開口した部分が下部を向いたＵ字状である）とが一体形成された極柱端子１を形成することができる。該極柱端子１の形成は、該端子部１１の下端部１２に形成された凹部１３が上方をとなるように支持具（図示せず）に固定し、凹部１３に集電部１５の上端部１６（この場合、集電部１５の開口した部分が上部を向いたＵ字状である）を作業者または機械によって挿入・嵌合した後、端子部１１と集電部１５の嵌合部分をアルゴン溶接機を用いて溶接を行う。
従来、端子部１１と集電部１５の接合部分の溶接は、該集電部１５がＵ字状であるため安定性が悪く夫々支持具を用いて固定する必要があったが、本考案の端子部１１および集電部１５を用いることで端子部１１のみを支持具によって固定することが可能である。 And the terminal part 11 and the current collection part 15 which were each produced as mentioned above are welded, and the terminal part 11 and the current collection part 15 (in this case, the opened part of the current collection part 15 is U-shaped with the lower part facing) The pole terminal 1 can be formed integrally. The pole terminal 1 is formed by fixing it to a support (not shown) so that the concave portion 13 formed at the lower end portion 12 of the terminal portion 11 faces upward, and the upper end of the current collecting portion 15 is fixed to the concave portion 13. After the portion 16 (in this case, the opened portion of the current collecting portion 15 is U-shaped facing upward) is inserted and fitted by an operator or machine, the fitting portion between the terminal portion 11 and the current collecting portion 15 Welding is performed using an argon welding machine.
Conventionally, the welding of the joint portion between the terminal portion 11 and the current collecting portion 15 is inferior in stability because the current collecting portion 15 is U-shaped, and has to be fixed using a support tool. By using the terminal portion 11 and the current collecting portion 15, it is possible to fix only the terminal portion 11 with a support.

そして、本考案のアルカリ蓄電池は、上記により作製された極柱端子１１を正極または／および負極用の極柱端子として従来と同様にして用いられ、極柱端子を有するアルカリ蓄電池を作製することができる。
なお、極柱端子１の端子部１１の上部中央内周面に施された所望の大きさの螺子溝１４には、負荷或いは蓄電池同士を直並列接続する為の負荷端子或いは接続バー（図示せず）を固定接続する為にこれら負荷端子或いは接続バーを介して上方からボルト（図示せず）が挿入螺着されるものである。これら接続バーは電気抵抗の少ない材質のものなら特に限定されるものではなく、銅板にニッケルメッキを施したもの等を使用することが可能である。
また、上記実施形態では、Ｕ字状の集電部を示したが、一枚の板状であっても良くその形状は種種の形態を採用し得、これら集電部を嵌合する凹部が端子部に形成され、該凹部に集電部が嵌合され、そして互いに溶接された構成とすれば良い。 The alkaline storage battery of the present invention can be used in the same manner as in the past, using the pole column terminal 11 manufactured as described above as a pole column terminal for a positive electrode and / or a negative electrode, and an alkaline storage battery having a pole column terminal can be manufactured. it can.
In addition, in a screw groove 14 of a desired size provided on the upper center inner peripheral surface of the terminal portion 11 of the pole terminal 1, a load terminal or connection bar (not shown) for connecting loads or storage batteries in series-parallel connection. In order to make a fixed connection, bolts (not shown) are inserted and screwed from above through these load terminals or connection bars. These connection bars are not particularly limited as long as they are made of a material having low electrical resistance, and it is possible to use a copper plate with nickel plating.
Moreover, in the said embodiment, although the U-shaped current collection part was shown, the shape of a board | plate may be employ | adopted for various shapes, and the recessed part which fits these current collection parts is shown. What is necessary is just to set it as the structure formed in the terminal part, the current collection part being fitted in this recessed part, and welding each other.

本考案一実施形態を示す極柱部分を示す正面図。The front view which shows the pole part which shows one Embodiment of this invention. 従来の極柱を用いたアルカリ蓄電池の部分断面斜視図。The fragmentary sectional perspective view of the alkaline storage battery using the conventional pole pole. 従来の極柱端子を示す正面図。The front view which shows the conventional pole terminal.

符号の説明Explanation of symbols

１ 極柱端子
１１ 端子部
１２ 下端部
１３ 凹部
１４ 螺子溝
１５ 集電部
１６ 上端部
２ 電槽
２１ 蓋
２２ 貫通孔
２３ Ｏリング
２４ 平座金
２５ 安全弁
３ 極板群
３１ 正極板
３２ 負極板
３３ セパレータ
３４ 耳（タブ） DESCRIPTION OF SYMBOLS 1 Polar pole terminal 11 Terminal part 12 Lower end part 13 Concave part 14 Screw groove 15 Current collecting part 16 Upper end part 2 Battery case 21 Lid 22 Through-hole 23 O ring 24 Flat washer 25 Safety valve 3 Electrode group 31 Positive electrode plate 32 Negative electrode plate 33 Separator 34 Ear (Tab)

Claims (1)

端子部と集電部からなる極柱端子を有するアルカリ蓄電池において、前記端子部はその下端部に凹部を備え、この凹部には前記集電部の一部が嵌合されていると共に、前記端子部と前記集電部が互いに溶接されてなる極柱端子を有することを特徴とするアルカリ蓄電池。 In the alkaline storage battery having a pole column terminal comprising a terminal part and a current collecting part, the terminal part has a recess at a lower end thereof, and a part of the current collecting part is fitted into the recess, and the terminal An alkaline storage battery comprising a pole column terminal formed by welding a part and the current collecting part to each other.

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