JPH08203555A - Sealed lead-acid battery - Google Patents
Sealed lead-acid batteryInfo
- Publication number
- JPH08203555A JPH08203555A JP7010780A JP1078095A JPH08203555A JP H08203555 A JPH08203555 A JP H08203555A JP 7010780 A JP7010780 A JP 7010780A JP 1078095 A JP1078095 A JP 1078095A JP H08203555 A JPH08203555 A JP H08203555A
- Authority
- JP
- Japan
- Prior art keywords
- electrode plate
- electrode
- plate group
- group
- battery case
- 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.)
- Withdrawn
Links
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、密閉型鉛蓄電池の如き
密閉型蓄電池に関し、特にその電槽に設けられている加
圧治具の改良に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealed storage battery such as a sealed lead storage battery, and more particularly to improvement of a pressure jig provided in the battery case.
【０００２】[0002]
【従来の技術】従来の密閉型鉛蓄電池は、合成樹脂製の
電槽のセル室に極板群を収納し、該極板群の極板積層方
向の両側に位置する電槽外壁より該極板群を加圧する構
造となっていた。また、極板群に対する加圧力を維持す
るために、従来は（イ）電槽の外壁の機械的強化を増加
させたり、（ロ）電槽の内側にスペーサを配置したり、
（ハ）電槽の両側に最外部仕切り壁を介して加圧室を設
けて、該加圧室をセル室内のガス圧で加圧してセル室か
ら最外部仕切り壁に加わる力を相殺したりしていた。2. Description of the Related Art In a conventional sealed lead-acid battery, an electrode plate group is housed in a cell chamber of a battery case made of synthetic resin, and the electrode plate is placed on both sides of the electrode plate group in the electrode stacking direction. It had a structure to press the plate group. Further, in order to maintain the pressure applied to the electrode plate group, conventionally, (a) increasing the mechanical strengthening of the outer wall of the battery case, (b) disposing a spacer inside the battery container,
(C) Providing a pressure chamber on both sides of the battery case via the outermost partition wall, and pressurizing the pressure chamber with the gas pressure in the cell chamber to offset the force applied from the cell chamber to the outermost partition wall. Was.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
機械的強度を補強した外壁を備えた電槽では、ある程度
の期間は加圧力を維持することができるが、充電時に発
生するガス等で内圧が上昇することにより外壁に比較的
大きな内圧が長期間にわたって加わると、補強した外壁
でも徐々に外側に向かって膨らむような変形が発生し、
極板群に加える加圧力が低下していくという問題点があ
った。However, in a conventional battery case having an outer wall reinforced with mechanical strength, the pressure can be maintained for a certain period of time, but the internal pressure is not maintained by the gas generated during charging. When a relatively large internal pressure is applied to the outer wall for a long period of time by rising, the reinforced outer wall also deforms so as to gradually expand outward,
There is a problem in that the pressure applied to the electrode plate group decreases.
【０００４】また、スペーサを配置した従来の電槽で
は、ガス圧で該電槽が膨らんだ際に、スペーサも一緒に
外向きに移動し、やはり極板群の加圧力が低下してしま
う問題点があった。Further, in the conventional battery case in which the spacers are arranged, when the battery container expands due to gas pressure, the spacers also move outward together, and the pressing force of the electrode plate group also decreases. There was a point.
【０００５】また、電槽の両側に最外部仕切り壁を介し
て加圧室を設けた電槽では、最外部仕切り壁がフラット
なので、極板群側から加わる機械的な力で該最外部仕切
り壁が徐々に加圧室に凸型に変形して、やはり極板群の
加圧力が低下してしまう問題点があった。Further, in a battery case in which a pressurizing chamber is provided on both sides of the battery case via outermost partition walls, since the outermost partition walls are flat, the outermost partition walls are mechanically applied from the electrode plate group side. There was a problem that the wall gradually deformed into a pressurizing chamber in a convex shape, and the pressing force of the electrode plate group also decreased.
【０００６】本発明の目的は、内圧が上昇しても極板群
の加圧力が低下しない電槽を備えた密閉型蓄電池を提供
することにある。An object of the present invention is to provide a sealed storage battery provided with a battery case in which the pressure applied to the electrode plate group does not decrease even if the internal pressure rises.
【０００７】[0007]
【課題を解決するための手段】本発明は、合成樹脂製の
電槽内に極板群が収納され、前記電槽内には前記極板群
の極板積層方向の両側に位置する電槽外壁の内側に前記
極板群を加圧する加圧治具がそれぞれ配置されている密
閉型蓄電池を改良の対象としている。DISCLOSURE OF THE INVENTION According to the present invention, an electrode plate group is housed in a battery case made of synthetic resin, and the battery case is located inside the electrode plate group on both sides of the electrode plate stacking direction. An improvement target is a sealed type storage battery in which a pressing jig for pressing the electrode plate group is arranged inside the outer wall.
【０００８】本発明に係る密閉型蓄電池においては、前
記加圧治具は前記極板群に向かって凸型の曲面をなす曲
面板部と、該曲面板部の凸面の複数箇所に前記極板群に
向かってそれぞれ突設されていて前記極板群に当接され
る先端の位置が揃っている複数のリブとを有する構造に
なっていることを特徴とする。In the sealed type storage battery according to the present invention, the pressing jig has a curved plate portion that forms a convex curved surface toward the electrode plate group, and the electrode plates are provided at a plurality of convex surfaces of the curved plate portion. It is characterized in that it has a structure having a plurality of ribs each projecting toward the group and in which the positions of the tips contacting the electrode group are aligned.
【０００９】この場合、前記電槽内を複数の仕切り壁で
複数のセル室に分割し、両端の前記セル室に面する電槽
外壁の内側に前記極板群を加圧する前記加圧治具をそれ
ぞれ配置し、前記加圧治具の前記各リブの先端から対応
する前記仕切り壁までの間隔を隣接する前記仕切り壁間
の間隔に等しく設定することができる。In this case, the inside of the battery case is divided into a plurality of cell chambers by a plurality of partition walls, and the pressing jig for pressing the electrode plate group inside the outer wall of the battery case facing the cell chambers at both ends. Can be respectively arranged, and the interval from the tip of each rib of the pressure jig to the corresponding partition wall can be set equal to the interval between the adjacent partition walls.
【００１０】また、前記加圧治具の前記曲面板部の両端
は、前記電槽の隣接するコーナ部にそれぞれ支持させる
ことが好ましい。Further, it is preferable that both ends of the curved plate portion of the pressing jig are supported by adjacent corner portions of the battery case.
【００１１】また、前記加圧治具には、前記セル室内の
ガス圧が前記曲面板部の前後で同圧となるような連通部
を設けることが好ましい。Further, it is preferable that the pressurizing jig is provided with a communicating portion such that the gas pressure in the cell chamber is the same before and after the curved plate portion.
【００１２】[0012]
【作用】このような密閉型蓄電池では、電槽内のガス圧
が上昇して該電槽の外壁が外向きに膨らんでも、該電槽
から独立している加圧治具が存在し、該加圧治具の曲面
板部が極板群に向かって凸型の曲面をなしているので、
この加圧治具の曲面板部の凸面の複数箇所に設けられて
いる複数のリブにより極板群を加圧することにより、ガ
ス圧の上昇による極板群への加圧力の低下を防止するこ
とができる。また、曲面板部が極板群に向かって凸型の
曲面をなしていて、この曲面板部の凸面の複数箇所に設
けた複数のリブにより極板群を加圧すると、各リブに伝
わる極板群からの反力を曲面板部でその曲面の方向に分
散させることができ、該曲面板部の特定箇所が変形する
のを防止できる。In such a sealed type storage battery, even if the gas pressure in the battery case rises and the outer wall of the battery container bulges outward, there is a pressure jig independent of the battery container. Since the curved plate portion of the pressure jig forms a convex curved surface toward the electrode plate group,
By pressing the electrode plate group with a plurality of ribs provided at a plurality of points on the convex surface of the curved plate portion of the pressing jig, it is possible to prevent a decrease in the pressure applied to the electrode plate group due to an increase in gas pressure. You can Further, the curved plate portion forms a convex curved surface toward the electrode plate group, and when the electrode plate group is pressed by a plurality of ribs provided at a plurality of points on the convex surface of the curved plate portion, the poles transmitted to each rib are transmitted. The reaction force from the plate group can be dispersed by the curved plate portion in the direction of the curved surface, and it is possible to prevent the specific portion of the curved plate portion from being deformed.
【００１３】この場合、電槽内を複数の仕切り壁で複数
のセル室に分割し、両端のセル室に面する電槽外壁の内
側に極板群を加圧する加圧治具をそれぞれ配置し、これ
ら加圧治具の各リブの先端から対応する仕切り壁までの
間隔を隣接する仕切り壁間の間隔に等しく設定すると、
複数のセル室を持つ電槽を有する密閉型蓄電池にも容易
に本発明を適用することができる。特に、加圧治具の各
リブの先端から対応する仕切り壁までの間隔を隣接する
仕切り壁間の間隔に等しく設定すると、各極板群の厚み
を同じにすることができる。In this case, the inside of the battery case is divided into a plurality of cell chambers by a plurality of partition walls, and pressure jigs for pressing the electrode plate group are arranged inside the battery chamber outer wall facing the cell chambers at both ends. , If the distance from the tip of each rib of these pressure jigs to the corresponding partition wall is set equal to the distance between adjacent partition walls,
The present invention can be easily applied to a sealed storage battery having a battery case having a plurality of cell chambers. In particular, if the distance from the tip of each rib of the pressing jig to the corresponding partition wall is set equal to the distance between the adjacent partition walls, the thickness of each electrode plate group can be made the same.
【００１４】また、加圧治具の曲面板部の両端を電槽の
隣接するコーナ部に支持させると、電槽の各外壁がガス
圧で変形しても、これら外壁はその中央が外向きに凸と
なるように変形するが、各コーナ部の位置はほとんど変
わらないので極板群に対する加圧力を維持することがで
きる。Further, when both ends of the curved plate portion of the pressing jig are supported by the adjacent corner portions of the battery case, even if each outer wall of the battery container is deformed by gas pressure, the center of these outer walls faces outward. Although it is deformed so as to be convex, the position of each corner portion hardly changes, so that the pressing force to the electrode plate group can be maintained.
【００１５】また、加圧治具に、セル室内のガス圧が曲
面板部の前後で同圧となるような連通部を設けると、ガ
ス圧の上昇により曲面板部に加わる力が相殺されてガス
圧で曲面板部が変形するのを防止することができる。Further, when the pressurizing jig is provided with a communicating portion such that the gas pressure in the cell chamber becomes the same before and after the curved plate portion, the force applied to the curved plate portion is offset by the increase in the gas pressure. It is possible to prevent the curved plate portion from being deformed by the gas pressure.
【００１６】[0016]
【実施例】図１及び図２は、本発明を適用した密閉型鉛
蓄電池の一実施例を示したものである。1 and 2 show an embodiment of a sealed lead-acid battery to which the present invention is applied.
【００１７】本実施例の密閉型鉛蓄電池は、ＡＢＳ樹脂
等の合成樹脂材料によって形成された箱型の電槽１を有
する。該電槽１は、平行する向きで互いに向い合う狭幅
の外壁１ａ，１ｂと、これらに直交する向きで互いに向
い合う広幅の外壁１ｃ，１ｄと、底板１ｅとで構成され
ている。該電槽１内は、仕切り壁２ａ，２ｂ，２ｃ，２
ｄ，２ｄ，２ｅにより複数のセル室３ａ，３ｂ，３ｃ，
３ｄ，３ｄ，３ｅ，３ｆに区画されている。隣接する仕
切り壁２ａ，２ｂ間、２ｂ，２ｃ間、２ｃ，２ｄ間、２
ｄ，２ｅ間の間隔は、同じ間隔Ｌ1 に設定されている。
外壁１ａ，仕切り壁２ａ間、仕切り壁２ｅ，外壁１ｂ間
の間隔は、間隔Ｌ1 より大きく設定されている。各セル
室３ａ〜３ｆには、図示しないが同じ極板枚数の極板群
が収容されるようになっている。The sealed lead-acid battery of this embodiment has a box-shaped battery case 1 made of a synthetic resin material such as ABS resin. The battery case 1 is composed of narrow outer walls 1a and 1b facing each other in a parallel direction, wide outer walls 1c and 1d facing each other in a direction orthogonal to these, and a bottom plate 1e. The inside of the battery case 1 has partition walls 2a, 2b, 2c, 2
a plurality of cell chambers 3a, 3b, 3c by d, 2d, 2e,
It is divided into 3d, 3d, 3e and 3f. Between adjacent partition walls 2a and 2b, between 2b and 2c, between 2c and 2d, 2
The distance between d and 2e is set to the same distance L1.
The intervals between the outer wall 1a and the partition wall 2a and between the partition wall 2e and the outer wall 1b are set to be larger than the interval L1. Although not shown, each of the cell chambers 3a to 3f accommodates the same number of electrode plates.
【００１８】両端のセル室３ａ，３ｆに面する電槽外壁
１ａ，１ｂの内側には、電槽１と同じくＡＢＳ樹脂等の
合成樹脂材料によって形成されていて極板群を加圧する
加圧治具４ａ，４ｂが収容されている。これら加圧治具
４ａ，４ｂは、極板群に向かって凸型の曲面をなす曲面
板部５ａ，５ｂと、これら曲面板部５ａ，５ｂの凸面の
４箇所に極板群に向かってそれぞれ突設されていて極板
群に当接される先端の位置が揃っている４個のリブ６
ａ，６ｂとを有する構造になっている。曲面板部５ａ，
５ｂは、電槽１の上端の位置と同じ高さになるようにそ
の長さが設定され、該電槽１の開口部側から底板１ｅ側
を見たとき仕切り壁２ａ，２ｅ側に突出するように円弧
状に湾曲されている。これら曲面板部５ａ，５ｂの両端
は、電槽外壁１ａ，１ｂの両端にある該電槽１のコーナ
部７ａ，７ｂと、コーナ部７ｃ，７ｄとに位置決め支持
されている。加圧治具４ａ，４ｂの各リブ６ａ，６ｂの
先端から対応する仕切り壁２ａ，２ｅまでの間隔は、隣
接する仕切り壁２ａ，２ｂ間、２ｄ，２ｅ間の間隔Ｌ1
に等しく設定されている。このため各セル室３ａ〜３ｆ
に収容する各極板群の厚みを同じにすることができる。Like the battery case 1, inside the battery case outer walls 1a, 1b facing the cell chambers 3a, 3f at both ends, which is made of a synthetic resin material such as ABS resin, a pressure treatment for pressing the electrode plate group is performed. The tools 4a and 4b are accommodated. These pressurizing jigs 4a and 4b are curved plate portions 5a and 5b forming a convex curved surface toward the electrode plate group, and four convex surface portions of these curved plate portions 5a and 5b toward the electrode plate group, respectively. Four ribs 6 that are projecting and have the same positions of the tips that come into contact with the electrode plate group
It has a structure having a and 6b. Curved plate portion 5a,
The length of 5b is set so as to be at the same height as the position of the upper end of the battery case 1, and protrudes toward the partition walls 2a, 2e when the bottom plate 1e side is viewed from the opening side of the battery case 1. It is curved like an arc. Both ends of these curved plate portions 5a, 5b are positioned and supported by corners 7a, 7b of the battery case 1 and corners 7c, 7d at both ends of the battery case outer walls 1a, 1b. The distance from the tip of each rib 6a, 6b of the pressing jig 4a, 4b to the corresponding partition wall 2a, 2e is the distance L1 between the adjacent partition walls 2a, 2b, 2d, 2e.
Is set equal to. Therefore, each cell chamber 3a-3f
It is possible to make the thicknesses of the electrode plate groups housed in the same.
【００１９】各曲面板部５ａ，５ｂの上部には、セル室
３ａ，３ｆ内のガス圧が曲面板部５ａ，５ｂの前後で同
圧となるように連通させる孔よりなる連通部８がそれぞ
れ設けられている。At the upper portion of each curved plate portion 5a, 5b, there is provided a communicating portion 8 formed of a hole for communicating so that the gas pressure in the cell chambers 3a, 3f becomes equal before and after the curved plate portion 5a, 5b. It is provided.
【００２０】このような密閉型鉛蓄電池では、電槽１内
のガス圧が上昇して該電槽１の外壁１ａ，１ｂが外向き
に膨らんでも、該電槽１から独立している加圧治具４
ａ，４ｂが存在し、該加圧治具４ａ，４ｂの曲面板部５
ａ，５ｂが極板群に向かって凸型の曲面をなしているの
で、この加圧治具４ａ，４ｂの曲面板部５ａ，５ｂの凸
面の複数箇所に設けられている複数のリブ６ａ，６ｂに
より極板群を加圧することにより、ガス圧の上昇による
極板群への加圧力の低下を防止することができる。ま
た、曲面板部５ａ，５ｂが極板群に向かって凸型の曲面
をなしていて、この曲面板部５ａ，５ｂの凸面の複数箇
所に設けた複数のリブ６ａ，６ｂにより極板群を加圧す
ると、各リブ６ａ，６ｂに伝わる極板群からの反力を曲
面板部５ａ，５ｂでその曲面の方向に分散させることが
でき、該曲面板部５ａ，５ｂの特定箇所が変形するのを
防止できる。In such a sealed lead storage battery, even if the gas pressure in the battery case 1 rises and the outer walls 1a, 1b of the battery container 1 bulge outward, the pressure applied independently of the battery container 1 is obtained. Jig 4
a, 4b are present, and the curved plate portion 5 of the pressing jigs 4a, 4b is present.
Since a and 5b form a convex curved surface toward the electrode plate group, a plurality of ribs 6a provided at a plurality of convex surfaces of the curved plate portions 5a and 5b of the pressing jigs 4a and 4b, By pressing the electrode plate group with 6b, it is possible to prevent a decrease in the pressure applied to the electrode plate group due to an increase in gas pressure. In addition, the curved plate portions 5a and 5b form a convex curved surface toward the electrode plate group, and the electrode plate group is formed by a plurality of ribs 6a and 6b provided at a plurality of convex surfaces of the curved plate portions 5a and 5b. When the pressure is applied, the reaction force from the electrode plate group transmitted to each rib 6a, 6b can be dispersed in the direction of the curved surface by the curved plate portions 5a, 5b, and the specific portions of the curved plate portions 5a, 5b are deformed. Can be prevented.
【００２１】本実施例のように、電槽１内を複数の仕切
り壁２ａ〜２ｅで複数のセル室３ａ〜３ｆに分割し、両
端のセル室３ａ，３ｆに面する電槽外壁１ａ，１ｂの内
側に極板群を加圧する加圧治具４ａ，４ｂをそれぞれ配
置し、これら加圧治具４ａ，４ｂの各リブ６ａ，６ｂの
先端から対応する仕切り壁２ａ，２ｅまでの間隔を隣接
する仕切り壁２ａ，２ｂ間、２ｅ，２ｄ間の間隔Ｌ1 に
等しく設定すると、本実施例のように複数のセル室３ａ
〜３ｆを持つ電槽１を有する密閉型鉛蓄電池にも容易に
本発明を適用することができる。特に、加圧治具４ａ，
４ｂの各リブ６ａ，６ｂの先端から対応する仕切り壁２
ａ，２ｅまでの間隔を隣接する仕切り壁２ａ，２ｂ間、
２ｅ，２ｄ間の間隔Ｌ1 に等しく設定すると、各極板群
の厚みを同じにすることができる。As in this embodiment, the inside of the battery case 1 is divided into a plurality of cell chambers 3a to 3f by a plurality of partition walls 2a to 2e, and the battery case outer walls 1a and 1b facing the cell chambers 3a and 3f at both ends. Pressing jigs 4a and 4b for pressing the electrode plate group are respectively arranged inside the plates, and the distances from the tips of the ribs 6a and 6b of the pressing jigs 4a and 4b to the corresponding partition walls 2a and 2e are adjacent to each other. When the distance L1 between the partition walls 2a and 2b is set to be equal to the distance L1 between the partition walls 2e and 2d, a plurality of cell chambers 3a as in the present embodiment is set.
The present invention can be easily applied to a sealed lead-acid battery having the battery case 1 having 3f. In particular, the pressure jig 4a,
The partition wall 2 corresponding to the tip of each rib 6a, 6b of 4b
a, 2e between the adjacent partition walls 2a, 2b,
If the distance L1 between 2e and 2d is set equal, the thickness of each electrode plate group can be made the same.
【００２２】また、加圧治具４ａ，４ｂの曲面板部５
ａ，５ｂの両端を電槽１の隣接するコーナ部７ａ，７ｂ
と７ｃ，７ｄに支持させると、電槽１の各外壁１ａ，１
ｂがガス圧で変形しても、これら外壁１ａ，１ｂはその
中央が外向きに凸となるように変形するが、各コーナ部
７ａ，７ｂと７ｃ，７ｄの位置はほとんど変わらないの
で極板群に対する加圧力を維持することができる。Further, the curved plate portion 5 of the pressure jigs 4a and 4b.
Both corners 7a and 7b of the battery case 1 are located on both ends of a and 5b.
And 7c, 7d, the outer walls 1a, 1 of the battery case 1 are supported.
Even if b is deformed by gas pressure, the outer walls 1a, 1b are deformed so that the center thereof is convex outward, but the positions of the corners 7a, 7b and 7c, 7d are almost the same, so the electrode plates The pressure force on the group can be maintained.
【００２３】また、加圧治具４ａ，４ｂに、セル室３
ａ，３ｆ内のガス圧が曲面板部５ａ，５ｂの前後で同圧
となるような連通部８を設けると、ガス圧の上昇により
曲面板部５ａ，５ｂに加わる力が相殺されてガス圧で曲
面板部５ａ，５ｂが変形するのを防止することができ
る。In addition, the cell chamber 3 is attached to the pressing jigs 4a and 4b.
If the communication portion 8 is provided so that the gas pressures in the a and 3f are the same before and after the curved plate portions 5a and 5b, the force applied to the curved plate portions 5a and 5b due to the increase in the gas pressure is canceled out. Therefore, it is possible to prevent the curved plate portions 5a and 5b from being deformed.
【００２４】図１及び図２に示す本実施例の加圧治具４
ａ，４ｂを備えた電槽１（本発明品）と、機械的強度を
増加させた外壁を有する電槽（従来品１）と、両端にス
ペーサを入れた通常の電槽（従来品２）とをそれぞれ10
個ずつ作製し、電槽内でガスが発生したと仮定して、該
電槽内に大気圧＋300mm Hgの高い圧力を加えて密閉し、
50℃中で７日間放置した。その後、各セルの幅（図１の
Ｌ1 に相当）の変化を測定した結果を表１に示す。ただ
し、本発明品の両端のセル室３ａ，３ｆの幅寸法は、加
圧治具４ａ，４ｂのリブ６ａ，６ｂ先端から最外部の仕
切り壁２ａ，２ｅまでの寸法とする。The pressure jig 4 of this embodiment shown in FIGS. 1 and 2.
Battery case 1 equipped with a and 4b (the present invention product), battery container having an outer wall with increased mechanical strength (conventional product 1), and normal battery container having spacers at both ends (conventional product 2) And 10 each
Individually, assuming that gas was generated in the battery case, a high pressure of atmospheric pressure + 300 mm Hg was applied to the battery container to seal it,
It was left at 50 ° C. for 7 days. Then, the result of measuring the change in the width of each cell (corresponding to L1 in FIG. 1) is shown in Table 1. However, the width dimensions of the cell chambers 3a and 3f at both ends of the product of the present invention are determined from the tips of the ribs 6a and 6b of the pressing jigs 4a and 4b to the outermost partition walls 2a and 2e.
【００２５】[0025]
【表１】 表１から判るように、本発明品及び従来品１，２ともに
中央の４つのセル室３ｂ，３ｃ，３ｄ，３ｅの幅寸法に
は変化が見られなかった。これに対して両端のセル室３
ａ，３ｆの幅寸法については、本発明品ではセル室３
ａ，３ｆの幅寸法に変化は見られなかったが、従来品
１，２ともセル室３ａ，３ｆの幅寸法に１〜２mmの変形
が見られた。[Table 1] As can be seen from Table 1, no change was observed in the width dimensions of the four central cell chambers 3b, 3c, 3d and 3e in both the present invention product and the conventional products 1 and 2. On the other hand, cell chambers 3 at both ends
Regarding the width dimensions of a and 3f, in the product of the present invention, the cell chamber 3
No change was found in the width dimensions of a and 3f, but in the conventional products 1 and 2, a deformation of 1 to 2 mm was seen in the width dimensions of the cell chambers 3a and 3f.
【００２６】上記実施例では、本発明を密閉型鉛蓄電池
に適用した例について示したが、本発明はこれに限定さ
れるものではなく、他の密閉型蓄電池にも同様に適用で
きるものである。In the above embodiment, an example in which the present invention is applied to a sealed lead-acid battery is shown, but the present invention is not limited to this, and can be similarly applied to other sealed storage batteries. .
【００２７】[0027]
【発明の効果】本発明に係る密閉型蓄電池によれば、下
記のような優れた効果を得ることができる。According to the sealed storage battery of the present invention, the following excellent effects can be obtained.
【００２８】本発明に係る密閉型蓄電池では、電槽内の
ガス圧が上昇して該電槽の外壁が外向きに膨らんでも、
該電槽から独立している加圧治具が存在し、該加圧治具
の曲面板部が極板群に向かって凸型の曲面をなしている
ので、この加圧治具の曲面板部の凸面の複数箇所に設け
られている複数のリブにより極板群を加圧することによ
り、ガス圧の上昇による極板群への加圧力の低下を防止
することができる。また、曲面板部が極板群に向かって
凸型の曲面をなしていて、この曲面板部の凸面の複数箇
所に設けた複数のリブにより極板群を加圧するので、各
リブに伝わる極板群からの反力を曲面板部でその曲面の
方向に分散させることができ、該曲面板部の特定箇所が
変形するのを防止できる。In the sealed type storage battery according to the present invention, even if the gas pressure in the battery case rises and the outer wall of the battery container bulges outward,
There is a pressure jig independent of the battery case, and the curved plate portion of the pressure jig forms a convex curved surface toward the electrode plate group. By pressing the electrode plate group with a plurality of ribs provided at a plurality of points on the convex surface of the portion, it is possible to prevent a decrease in the pressure applied to the electrode plate group due to an increase in gas pressure. In addition, the curved plate portion forms a convex curved surface toward the electrode plate group, and since the electrode plate group is pressed by the plurality of ribs provided at a plurality of points on the convex surface of the curved plate portion, the pole transmitted to each rib is The reaction force from the plate group can be dispersed by the curved plate portion in the direction of the curved surface, and it is possible to prevent the specific portion of the curved plate portion from being deformed.
【００２９】また、請求項２に記載の発明では、電槽内
を複数の仕切り壁で複数のセル室に分割し、両端のセル
室に面する電槽外壁の内側に極板群を加圧する加圧治具
をそれぞれ配置し、これら加圧治具の各リブの先端から
対応する仕切り壁までの間隔を隣接する仕切り壁間の間
隔に等しく設定しているので、複数のセル室を持つ電槽
を有する密閉型蓄電池にも容易に本発明を容易に適用す
ることができる。特に、本発明のように、加圧治具の各
リブの先端から対応する仕切り壁までの間隔を隣接する
仕切り壁間の間隔に等しく設定すると、各極板群の厚み
を同じにすることができる。Further, in the invention according to claim 2, the inside of the battery case is divided into a plurality of cell chambers by a plurality of partition walls, and the electrode plate group is pressed to the inside of the battery case outer wall facing the cell chambers at both ends. Since the pressure jigs are arranged and the distance from the tip of each rib of these pressure jigs to the corresponding partition wall is set to be equal to the distance between the adjacent partition walls, it is possible to use an electrode with multiple cell chambers. The present invention can be easily applied to a sealed storage battery having a tank. In particular, like the present invention, if the distance from the tip of each rib of the pressure jig to the corresponding partition wall is set equal to the distance between adjacent partition walls, the thickness of each electrode plate group can be made the same. it can.
【００３０】また、請求項３に記載の発明では、加圧治
具の曲面板部の両端を電槽の隣接するコーナ部に支持さ
せているので、電槽の各外壁がガス圧で変形しても、こ
れら外壁はその中央が外向きに凸となるように変形する
が、各コーナ部の位置はほとんど変わらないので極板群
に対する加圧力を維持することができる。Further, in the invention according to claim 3, since both ends of the curved plate portion of the pressing jig are supported by the adjacent corner portions of the battery case, each outer wall of the battery container is deformed by gas pressure. However, these outer walls are deformed so that the center thereof is outwardly convex, but the positions of the corners hardly change, so that the pressing force to the electrode plate group can be maintained.
【００３１】また、請求項４に記載の発明では、加圧治
具に、セル室内のガス圧が曲面板部の前後で同圧となる
ような連通部を設けているので、ガス圧の上昇により曲
面板部に加わる力が相殺されてガス圧で曲面板部が変形
するのを防止することができる。Further, in the invention as set forth in claim 4, the pressurizing jig is provided with the communicating portion such that the gas pressure in the cell chamber becomes the same before and after the curved plate portion. Thus, it is possible to prevent the forces applied to the curved plate portion from canceling each other and to prevent the curved plate portion from being deformed by the gas pressure.
【図１】（Ａ）は本発明に係る密閉型蓄電池の一実施例
で用いている電槽の平面図である。FIG. 1A is a plan view of a battery case used in an embodiment of a sealed storage battery according to the present invention.
【図２】本実施例の電槽の一部破断斜視図である。FIG. 2 is a partially cutaway perspective view of the battery case of the present embodiment.
１ 電槽 １ａ〜１ｄ 外壁 １ｅ 底板 ２ａ〜２ｅ 仕切り壁 ３ａ〜３ｅ セル室 ４ａ，４ｂ 加圧治具 ５ａ，５ｂ 曲面板部 ６ａ，６ｂ リブ ７ａ〜７ｄ コーナ部 ８ 連通部 DESCRIPTION OF SYMBOLS 1 Battery case 1a-1d Outer wall 1e Bottom plate 2a-2e Partition wall 3a-3e Cell chamber 4a, 4b Pressing jig 5a, 5b Curved plate part 6a, 6b Rib 7a-7d Corner part 8 Communication part
Claims (4)
れ、前記電槽内には前記極板群の極板積層方向の両側に
位置する電槽外壁の内側に前記極板群を加圧する加圧治
具がそれぞれ配置されている密閉型蓄電池において、 前記加圧治具は前記極板群に向かって凸型の曲面をなす
曲面板部と、該曲面板部の凸面の複数箇所に前記極板群
に向かってそれぞれ突設されていて前記極板群に当接さ
れる先端の位置が揃っている複数のリブとを有する構造
になっていることを特徴とする密閉型蓄電池。1. An electrode group is housed in a battery case made of synthetic resin, and the electrode group is inside the battery case outer wall located on both sides of the electrode plate group in the electrode stacking direction. In a sealed storage battery, each of which is provided with a pressurizing jig that pressurizes the pressurizing jig, the pressurizing jig includes a curved plate portion that forms a convex curved surface toward the electrode plate group, and a plurality of convex surfaces of the curved plate portion. A hermetically sealed storage battery having a plurality of ribs that are respectively provided to project toward the electrode plate group and have a plurality of ribs that are in contact with the electrode plate group and whose tip positions are aligned. .
ル室に分割され、両端の前記セル室に面する電槽外壁の
内側に前記極板群を加圧する前記加圧治具がそれぞれ配
置され、前記加圧治具の前記各リブの先端から対応する
前記仕切り壁までの間隔が隣接する前記仕切り壁間の間
隔に等しく設定されていることを特徴とする請求項１に
記載の密閉型蓄電池。2. The inside of the battery case is divided into a plurality of cell chambers by a plurality of partition walls, and the pressure jig for pressurizing the electrode plate group is provided inside an outer wall of the battery case facing the cell chambers at both ends. The said each arrange | positioned, The space | interval from the front-end | tip of each said rib of the said pressurizing jig to the said corresponding partition wall is set as the space | interval between the said adjacent partition walls, The claim 1 characterized by the above-mentioned. Sealed storage battery.
記電槽の隣接するコーナ部にそれぞれ支持されているこ
とを特徴とする請求項１または２に記載の密閉型蓄電
池。3. The sealed storage battery according to claim 1, wherein both ends of the curved plate portion of the pressure jig are supported by adjacent corner portions of the battery case.
が前記曲面板部の前後で同圧となるような連通部が設け
られていることを特徴とする請求項１〜３のいずれか１
つに記載の密閉型蓄電池。4. The communication device according to claim 1, wherein the pressurizing jig is provided with a communicating portion such that the gas pressure in the cell chamber is the same before and after the curved plate portion. Either one
Sealed storage battery according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7010780A JPH08203555A (en) | 1995-01-26 | 1995-01-26 | Sealed lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7010780A JPH08203555A (en) | 1995-01-26 | 1995-01-26 | Sealed lead-acid battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08203555A true JPH08203555A (en) | 1996-08-09 |
Family
ID=11759858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7010780A Withdrawn JPH08203555A (en) | 1995-01-26 | 1995-01-26 | Sealed lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08203555A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107112575A (en) * | 2014-11-11 | 2017-08-29 | 株式会社Lg化学 | Extrusion clamp for secondary battery cell |
-
1995
- 1995-01-26 JP JP7010780A patent/JPH08203555A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107112575A (en) * | 2014-11-11 | 2017-08-29 | 株式会社Lg化学 | Extrusion clamp for secondary battery cell |
| US10147965B2 (en) | 2014-11-11 | 2018-12-04 | Lg Chem, Ltd. | Pressing jig for secondary battery cell |
| CN107112575B (en) * | 2014-11-11 | 2019-07-09 | 株式会社Lg化学 | Extrusion clamp for secondary battery cell |
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