JP2003142041A - Storage battery - Google Patents

Storage battery

Info

Publication number
JP2003142041A
JP2003142041A JP2001340378A JP2001340378A JP2003142041A JP 2003142041 A JP2003142041 A JP 2003142041A JP 2001340378 A JP2001340378 A JP 2001340378A JP 2001340378 A JP2001340378 A JP 2001340378A JP 2003142041 A JP2003142041 A JP 2003142041A
Authority
JP
Japan
Prior art keywords
wall
lid
battery case
partition
face
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
Application number
JP2001340378A
Other languages
Japanese (ja)
Inventor
Kuniharu Kanazawa
金沢　　邦治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Storage Battery Co Ltd
Original Assignee
Japan Storage Battery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Japan Storage Battery Co Ltd filed Critical Japan Storage Battery Co Ltd
Priority to JP2001340378A priority Critical patent/JP2003142041A/en
Publication of JP2003142041A publication Critical patent/JP2003142041A/en
Pending legal-status Critical Current

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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

Abstract

PROBLEM TO BE SOLVED: To provide a storage battery of high liquid-tightness and air-tightness between cell chambers with a long service life. SOLUTION: In this storage battery having a battery jar 2 opened on its upper side and having a partition walls 2a and an outer wall 2d, and a lid 3 having a partition walls 3a and an outer wall 3d, and capable of closing the opening of the battery jar and being abutted on an wall end face of the battery jar at its wall end face, at least one of an inner wall and/or a front wall of the lid 3 is provided with ribs 4, 5 having guide faces 4a, 5a mounted in a state of being projected from an end face, and inclined to be gradually separated from a thickness central line of the wall in accordance with separating from the end face, and the ribs 4, 5 are mounted in a state that a line of intersection of the guide face and the wall end face is positioned inside with respect to a ridge line of the wall end face and a wall main face.

Description

【発明の詳細な説明】 【０００１】 【発明の属する技術分野】本発明は、蓄電池に属する。
本発明は、例えば、複数の電池セルを有する鉛蓄電池と
して好適に利用される。 【０００２】 【従来の技術】従来より鉛蓄電池に用られる容器の平面
図を図３に、そのIV−IV線断面図を図４に示す。この電
池容器１１は、上向きに開口した電槽１２を備える。電
槽１２は直方体状をなし、端部の外壁１２ｄと平行な複
数の隔壁１２ａによって内部が区画されている。また電
池容器１１は、電槽１２に被せられてその開口を閉塞す
る蓋１３を備える。蓋１３の内部も、外壁１３ｄと平行
な隔壁１３ａによって区画されている。そして、蓋１３
を電槽１２に被せると、外壁端面同士１２ｅ、１３ｅが
当接するとともに、隔壁端面同士１２ｂ、１３ｂが当接
する。その結果、電池セルを収納するセル室１６が複数
形成される。 【０００３】蓋１３の隔壁１３ａ及び外壁１３ｄには、
各々数カ所にリブ１４、１５が設けられている。リブ１
４、１５は、それらの壁１３ａ、１３ｄよりも下方にま
で突出していて、壁端面１３ｂ、１３ｅから遠ざかるに
つれて壁１３ａ、１３ｄの肉厚中心線から離れるように
傾斜したガイド面１４ａ、１５ａを有する。蓋１３の上
面には、例えばその中央部に長方形状の凹部が形成され
ていて、そこに上蓋１３ｇが填め込まれている。凹部の
底には、注液口（図示省略）が設けられている。また、
蓄電池内部の発電要素から外部に電流を取り出すため
に、例えば蓋１３の上面に貫通孔１３ｈが設けられてい
る。 【０００４】この電池容器１１では、以下のようにして
各セル室１６を形成することができる。まず、電槽１２
の各区画に電池セルを入れた後、電槽１２の隔壁端面１
２ｂ及び外壁端面１２ｅを熱せられた鉄板と接触させる
ことによって溶かす。さらに、蓋１３の隔壁端面１３ｂ
及び外壁端面１３ｅも同様にして溶かす。続いて、蓋１
３を電槽１２に被せ、同時に蓋１３の壁１３ａ、１３ｄ
の端面１３ｂ、１３ｅを電槽１２の壁１２ａ、１２ｄの
端面１２ｂ、１２ｅに当てる。このとき、壁１３ａ、１
３ｄにはリブ１４、１５が設けられており、リブ１４、
１５はガイド面１４ａ、１５ａを有するので、蓋１３の
壁１３ｂ、１３ｄはガイド面１４ａ、１５ａに案内され
てスムーズに電槽１２の壁端面１２ｂ、１３ｅと当接す
る。その後、蓋１３を電槽１２の方向へ押さえ付けるこ
とによって、これらを溶着する。これにより、各々のセ
ル室１６が形成される。 【０００５】 【発明が解決しようとする課題】しかし、従来の電池容
器１１では、電槽１２の隔壁１２ａが蓋１３の隔壁端面
１３ｂの中央に溶着されず、図５に示すように電槽隔壁
１２ａが蓋隔壁１３ａの稜線１３ｃ上に溶着されること
が多く、リブ１４の無い位置では稜線１３ｃよりはみ出
て溶着されることもあった。また、外壁同士１２ｄ、１
３ｄの溶着についても同様に、電槽外壁１２ｄが蓋外壁
１３ｄの稜線１３ｆ上に溶着されることが多かった。こ
のように偏心位置で溶着されると、接合面積が不足して
接合強度が低くなる。そのため接合部がはずれて電解液
やその蒸気がセル室１６間で移動してしまい、電池セル
の残容量がアンバランスになり、その結果、電池の寿命
が短くなる。また、外壁１２ｄ、１３ｄの接合部がはず
れると電池容器外へ電解液が漏出して、電池の寿命が短
くなる。それ故、本発明の課題は、セル室間の液密性及
び気密性を高くすることができる蓄電池を提供すること
にある。 【０００６】 【課題を解決するための手段】本発明の蓄電池は、電槽
隔壁と電槽外壁とを有する電槽と、前記電槽隔壁と電槽
外壁とに当接する蓋隔壁と蓋外壁を有する蓋とを備えた
蓄電池において、前記電槽及び前記蓋の少なくとも一方
の隔壁及び／又は外壁に、端面より突出するように設け
られ、端面から遠ざかるにつれて前記隔壁及び／又は外
壁の肉厚中心線から離れるように傾斜したガイド面を有
するリブとを備え、前記リブは、ガイド面と壁端面との
交線が壁端面と壁主面との稜線より内側に位置するよう
に設けられていることを特徴とする。ここで壁主面とは
壁によって仕切られる空間に面する面、壁端面とは壁主
面と交差する面をいう。 【０００７】本発明の蓄電池は、隔壁及び外壁を有する
電槽と、隔壁及び外壁を有する蓋とを備え、蓋により電
槽の開口を閉塞すると、電槽の壁の端面と蓋の壁の端面
とが当接する。また電槽及び蓋の少なくとも一方には、
隔壁及び／又は外壁にガイド面を有するリブが設けられ
ている。よって、例えば蓋の壁にリブが設けられた場
合、蓋で電槽を閉塞する際に、電槽の壁はリブのガイド
面を滑って蓋の壁の端面へ導かれて当接する。このと
き、本発明ではガイド面と壁端面との交線が壁端面と壁
主面との稜線より内側に位置するようにリブが設けられ
ているので、電槽の壁は蓋の壁の稜線より内側にまで導
かれる。従って、電槽の壁が蓋の壁の稜線上に接合され
ることはない。リブが電槽の壁に設けられた場合も、同
様に蓋の壁が電槽の壁の稜線上に接合されることはな
い。よって本発明によると、壁同士の接合強度が高くな
り、セル室の密閉性が高くなる。 【０００８】本発明の蓄電池は、例えば鉛蓄電池として
使用され得る。電槽及び蓋の材質としては、ＡＢＳ（ア
クリルニトリル−ブタジエン−スチレン共重合体）、Ｐ
Ｐ（ポリプロピレン）などの樹脂を使用することができ
る。電槽及び蓋の内部の隔壁の数は限定されない。また
壁同士が当接可能なように、電槽における壁の間隔を蓋
におけるそれとほぼ同じにすると良い。リブは１枚の壁
に幾つ設けられても良いが、内部の壁については両主面
の各々に設けられるのが望ましい。こうすることによ
り、リブを設けた壁端面の中央部にもう一方の壁を導き
やすくなって、壁同士の接合が安定する。但し、この場
合、リブの設けられる壁をもう一方の壁よりも厚くす
る。リブは、電槽又は蓋と一体成形されると良い。 【０００９】 【発明の実施の形態】実施形態の蓄電池に用いられる電
池容器を図１に断面図として示す。この電池容器１は、
上向きに開口した直方体状の電槽２と、電槽２に被せら
れてその開口を閉塞する蓋３とを備える。電槽２の内部
には、底面より垂直に延びた同じ長さの複数の隔壁２ａ
が等間隔に配置されており、これらの隔壁２ａによって
電槽２は区画されている。蓋３も複数の隔壁３ａを内部
に有し、これらにより区画されている。蓋３の各隔壁３
ａは裏面より垂直に延びていて、各隔壁３ａの長さは同
じである。また、蓋３の各隔壁３ａは電槽２の隔壁２ａ
よりも厚いが、間隔は電槽２のそれとほぼ同じである。
そして、蓋３を電槽２に被せると、蓋３の隔壁３ａの端
面３ｂが電槽２の隔壁２ａの端面２ｂと当接する。また
同時に、蓋３の外壁３ｄの端面３ｅが電槽２の外壁２ｄ
の端面２ｅと当接する。従って、この電池容器１では、
電池セルを収納するセル室６が複数形成される。 【００１０】蓋３の各隔壁３ａの主面には、リブ４が一
体成形されている。リブ４は各隔壁３ａの２箇所に設け
られ（図示省略）、それぞれの箇所では２本のリブ４が
隔壁３ａを挟んで対向している。また各リブ４は蓋３の
隔壁端面３ｂよりも下方にまで突出しており、その突出
部分には斜面をなすガイド面４ａが形成されている。ガ
イド面４ａは、下端に向かうにつれて隔壁３ａの肉厚中
心線から離れるように傾斜していて、ガイド面４ａと隔
壁端面３ｂとの交線は隔壁端面３ｂと隔壁主面との稜線
３ｃよりも内側にある。さらに蓋３には、隔壁３ａと平
行な外壁３ｄの内面にも、リブ５が一体成形されてい
る。このリブ５は、隔壁３ａのリブ４と同様に、端面３
ｅよりの下方に突出しており、傾斜したガイド面５ａを
有する。そしてガイド面５ａは、外壁端面３ｅとの交線
が外壁３ｄの稜線３ｆよりも内側に位置するように形成
されている。 【００１１】蓋３の上面（図示省略）の中央部には、長
方形状をなす凹部が形成されており、その底には筒や孔
が設けられている。これらの筒及び孔は電池容器１の内
部と通じていて、電解液の注入等に使用される。また、
凹部には上蓋が填め込まれ、上蓋によって封口される。
さらに蓋３の上面には、正負の電池端子を挿入するため
の長方形状の貫通孔が２つ設けられている。 【００１２】この電池容器１を鉛蓄電池の容器として使
用する場合、各セル室６は以下のようにして形成され
る。まず、電槽２の各セル室６に電池セルを収めた後、
電槽２の隔壁端面２ｂ及び外壁端面２ｅを熱せられた鉄
板と接触させることによって溶かす。さらに、蓋３の隔
壁端面３ｂ及び外壁端面３ｅも同様にして溶かす。続い
て、蓋３を電槽２に被せることにより、蓋３の壁端面３
ｂ、３ｅを各々電槽２の壁端面２ｂ、２ｅに当接する。 【００１３】このとき、蓋３の隔壁３ａにはガイド面４
ａを有するリブ４が設けられているので、電槽２の隔壁
２ａはリブ４のガイド面４ａを滑って蓋３の隔壁３ａま
で導かれる。そのため、隔壁端面同士２ｂ、３ｂは、ス
ムーズに当接する。しかも、本実施形態の電池容器１で
は、リブ４のガイド面４ａが蓋３の隔壁端面３ｂの稜線
３ｃの内側にまで至っており、その上、リブ４が各隔壁
３ａの両面にある。よって図２に示すように、電槽２の
隔壁２ａは蓋端面３ｂの中央部に導かれて当接する。さ
らにこの電池容器１は、隔壁３ａのリブ４と同形状のリ
ブ５を蓋３の外壁３ｄにも備える。従って、電槽２の外
壁２ｄは蓋３の外壁３ｄの稜線３ｆより内側にまで導か
れて当接する。次に、蓋３を電槽２の方向へ押さえ付け
ることによって、これらを溶着する。これにより、各セ
ル室６が形成される。 【００１４】本実施形態の電池容器１では、上記のよう
に電槽２の壁２ａ、２ｄは蓋端面３ｂ、３ｅの稜線３
ｃ、３ｆより内側に当接され、そしてこの状態で溶着さ
れる。よって、電槽２の壁２ａ、２ｄが、蓋３の壁３
ａ、３ｄの稜線３ｃ、３ｆ上に接合されることがなく、
またリブ４、５の無い位置で稜線３ｃ、３ｆよりはみ出
ることがない。従って、本実施形態によると、各セル室
６間の密閉性及び電池容器全体の密閉性が高くなる。そ
のため、電解液及びその蒸気のセル室間の移動・容器外
への漏出を防止することができ、電池寿命の短縮を抑制
することができる。 【００１５】 【発明の効果】本発明の蓄電池は、セル室間の液密性及
び気密性が高いので、電池寿命が長く有益である。Description: TECHNICAL FIELD [0001] The present invention relates to a storage battery.
The present invention is suitably used, for example, as a lead storage battery having a plurality of battery cells. 2. Description of the Related Art FIG. 3 is a plan view of a container conventionally used for a lead storage battery, and FIG. 4 is a sectional view taken along line IV-IV of the container. The battery case 11 includes a battery case 12 opened upward. The battery case 12 has a rectangular parallelepiped shape, and its inside is partitioned by a plurality of partition walls 12a parallel to the outer wall 12d at the end. In addition, the battery container 11 includes a lid 13 that covers the battery case 12 and closes the opening thereof. The inside of the lid 13 is also partitioned by a partition 13a parallel to the outer wall 13d. And the lid 13
Is put on the battery case 12, the outer wall end surfaces 12e and 13e come into contact with each other, and the partition wall end surfaces 12b and 13b come into contact with each other. As a result, a plurality of cell chambers 16 for housing the battery cells are formed. The partition 13a and the outer wall 13d of the lid 13 have
Ribs 14 and 15 are provided at several places, respectively. Rib 1
4 and 15 have guide surfaces 14a and 15a projecting below the walls 13a and 13d, and being inclined away from the wall thickness center lines of the walls 13a and 13d as the distance from the wall end surfaces 13b and 13e increases. . On the upper surface of the lid 13, for example, a rectangular concave portion is formed at the center thereof, and the upper lid 13g is fitted into the rectangular concave portion. A liquid inlet (not shown) is provided at the bottom of the concave portion. Also,
A through-hole 13h is provided on the upper surface of the lid 13, for example, to extract a current from the power generating element inside the storage battery to the outside. In the battery case 11, each cell chamber 16 can be formed as follows. First, the battery case 12
After the battery cell is put in each section, the partition end face 1 of the battery case 12
2b and the outer wall end surface 12e are melted by contact with a heated iron plate. Further, the partition end surface 13b of the lid 13
Similarly, the outer wall end surface 13e is melted. Then, lid 1
3 over the battery case 12, and simultaneously the walls 13a, 13d of the lid 13
Are applied to the end surfaces 12b, 12e of the walls 12a, 12d of the battery case 12. At this time, the walls 13a, 1
3d is provided with ribs 14 and 15, and ribs 14 and 15 are provided.
Since 15 has the guide surfaces 14a and 15a, the walls 13b and 13d of the lid 13 are guided by the guide surfaces 14a and 15a and smoothly come into contact with the wall end surfaces 12b and 13e of the battery case 12. Thereafter, these are welded by pressing the lid 13 in the direction of the battery case 12. Thereby, each cell chamber 16 is formed. [0005] However, in the conventional battery case 11, the partition 12a of the battery case 12 is not welded to the center of the partition end surface 13b of the lid 13, and as shown in FIG. 12a is often welded on the ridge line 13c of the lid partition wall 13a, and may be welded out of the ridge line 13c at a position where the rib 14 is not provided. In addition, the outer walls 12d, 1d
Similarly, in the case of 3d welding, similarly, the battery case outer wall 12d is often welded on the ridgeline 13f of the lid outer wall 13d. When the welding is performed at the eccentric position in this manner, the bonding area is insufficient and the bonding strength is reduced. As a result, the joints are disengaged, and the electrolyte and its vapor move between the cell chambers 16, and the remaining capacity of the battery cells becomes unbalanced, and as a result, the life of the battery is shortened. Also, if the joint between the outer walls 12d and 13d comes off, the electrolyte leaks out of the battery container, shortening the life of the battery. Therefore, an object of the present invention is to provide a storage battery capable of improving liquid tightness and air tightness between cell chambers. According to the present invention, there is provided a storage battery comprising: a battery case having a battery case partition and a battery case outer wall; and a lid partition and a cover outer wall contacting the battery case partition and the battery case outer wall. And a lid having at least one of the partition and / or the outer wall of the battery case and the lid so as to protrude from an end face, and the thickness center line of the partition and / or the outer wall as the distance from the end face increases. A rib having a guide surface inclined away from the wall, wherein the rib is provided such that an intersection line between the guide surface and the wall end surface is located inside a ridge line between the wall end surface and the wall main surface. It is characterized by. Here, the wall main surface refers to a surface facing a space partitioned by the wall, and the wall end surface refers to a surface intersecting the wall main surface. A storage battery according to the present invention includes a battery case having a partition wall and an outer wall, and a lid having a partition wall and an outer wall. And abut. Also, in at least one of the battery case and the lid,
A rib having a guide surface is provided on the partition wall and / or the outer wall. Therefore, for example, when a rib is provided on the wall of the lid, when closing the battery case with the lid, the wall of the battery case slides on the guide surface of the rib and is brought into contact with the end surface of the wall of the lid. At this time, in the present invention, the ribs are provided so that the intersection line between the guide surface and the wall end surface is located inside the ridge line between the wall end surface and the wall main surface. It is guided further inside. Therefore, the wall of the battery case is not joined to the ridge of the wall of the lid. Similarly, when the rib is provided on the wall of the battery case, the wall of the lid is not joined to the ridgeline of the wall of the battery case. Therefore, according to the present invention, the joint strength between the walls is increased, and the sealing performance of the cell chamber is enhanced. [0008] The storage battery of the present invention can be used, for example, as a lead storage battery. ABS (acrylonitrile-butadiene-styrene copolymer), P
Resins such as P (polypropylene) can be used. The number of partitions inside the battery case and the lid is not limited. Further, it is preferable that the distance between the walls in the battery case is substantially the same as that in the lid so that the walls can contact each other. Any number of ribs may be provided on one wall, but it is desirable that the inner wall be provided on each of the two main surfaces. This makes it easy to guide the other wall to the center of the end face of the wall provided with the ribs, and the joining between the walls is stabilized. However, in this case, the wall provided with the rib is made thicker than the other wall. The rib may be formed integrally with the battery case or the lid. FIG. 1 is a sectional view showing a battery container used for a storage battery according to an embodiment. This battery container 1
It comprises a rectangular parallelepiped battery case 2 that opens upward, and a lid 3 that covers the battery case 2 and closes the opening. Inside the battery case 2, a plurality of partition walls 2a having the same length and extending vertically from the bottom surface are provided.
Are arranged at equal intervals, and the battery case 2 is partitioned by these partition walls 2a. The lid 3 also has a plurality of partitions 3a inside, and is partitioned by these. Each partition 3 of the lid 3
a extends vertically from the back surface, and the length of each partition 3a is the same. Each partition 3a of the lid 3 is a partition 2a of the battery case 2.
Thicker, but the spacing is almost the same as that of the battery case 2.
When the lid 3 is put on the battery case 2, the end face 3 b of the partition wall 3 a of the cover 3 comes into contact with the end face 2 b of the partition wall 2 a of the battery case 2. At the same time, the end face 3e of the outer wall 3d of the lid 3 is
Abuts on the end surface 2e of Therefore, in this battery container 1,
A plurality of cell chambers 6 for storing battery cells are formed. A rib 4 is integrally formed on the main surface of each partition 3a of the lid 3. The ribs 4 are provided at two places on each partition 3a (not shown), and two ribs 4 oppose each other with the partition 3a interposed therebetween. Each rib 4 protrudes below the partition end surface 3b of the lid 3, and a protruding portion is formed with a guide surface 4a that forms a slope. The guide surface 4a is inclined so as to move away from the center line of the thickness of the partition wall 3a toward the lower end. Inside. Further, the lid 3 is integrally formed with a rib 5 on the inner surface of an outer wall 3d parallel to the partition wall 3a. The rib 5 is, like the rib 4 of the partition wall 3a, the end face 3
e, and has an inclined guide surface 5a. The guide surface 5a is formed such that the line of intersection with the outer wall end surface 3e is located inside the ridge line 3f of the outer wall 3d. At the center of the upper surface (not shown) of the lid 3, a rectangular recess is formed, and a cylinder or a hole is provided at the bottom. These cylinders and holes communicate with the inside of the battery container 1 and are used for injection of an electrolytic solution or the like. Also,
An upper lid is fitted into the recess, and is closed by the upper lid.
Further, on the upper surface of the lid 3, two rectangular through holes for inserting positive and negative battery terminals are provided. When the battery container 1 is used as a lead storage battery container, each cell chamber 6 is formed as follows. First, after storing the battery cells in each cell room 6 of the battery case 2,
The end face 2b of the partition wall and the end face 2e of the outer wall of the battery case 2 are melted by contact with a heated iron plate. Further, the partition wall end face 3b and the outer wall end face 3e of the lid 3 are similarly melted. Subsequently, the lid 3 is put on the battery case 2 so that the wall end surface 3 of the lid 3 is covered.
b and 3e abut against the wall end surfaces 2b and 2e of the battery case 2, respectively. At this time, the guide surface 4 is provided on the partition wall 3a of the lid 3.
Since the rib 4 having a is provided, the partition 2 a of the battery case 2 slides on the guide surface 4 a of the rib 4 and is guided to the partition 3 a of the lid 3. Therefore, the partition end surfaces 2b and 3b abut smoothly. In addition, in the battery container 1 of the present embodiment, the guide surface 4a of the rib 4 reaches the inside of the ridgeline 3c of the partition end surface 3b of the lid 3, and the rib 4 is on both sides of each partition 3a. Therefore, as shown in FIG. 2, the partition 2a of the battery case 2 is guided to the central portion of the lid end surface 3b and abuts thereon. Further, the battery container 1 also includes a rib 5 having the same shape as the rib 4 of the partition wall 3a on the outer wall 3d of the lid 3. Therefore, the outer wall 2d of the battery case 2 is guided to the inner side from the ridgeline 3f of the outer wall 3d of the lid 3 and comes into contact therewith. Next, these are welded by pressing the lid 3 toward the battery case 2. Thereby, each cell chamber 6 is formed. In the battery container 1 of the present embodiment, the walls 2a and 2d of the battery case 2 are covered with the ridges 3 of the lid end faces 3b and 3e as described above.
c, 3f, and are welded in this state. Therefore, the walls 2a and 2d of the battery case 2
a, 3d without being joined on the ridgelines 3c, 3f,
In addition, the ribs 4 and 5 do not protrude from the ridge lines 3c and 3f at positions where there are no ribs. Therefore, according to the present embodiment, the airtightness between the cell chambers 6 and the airtightness of the entire battery container are improved. Therefore, it is possible to prevent the electrolyte solution and its vapor from moving between the cell chambers and leaking out of the container, and it is possible to suppress the shortening of the battery life. The storage battery of the present invention has high liquid-tightness and air-tightness between cell chambers, and thus has a long battery life and is useful.

【図面の簡単な説明】 【図１】実施形態の蓄電池の電池容器を示す断面図であ
る。 【図２】実施形態の隔壁間の溶着状態を示す断面図であ
る。 【図３】従来の蓄電池の電池用容器を示す平面図であ
る。 【図４】図３のIV−IV線断面図である。 【図５】従来の隔壁間の溶着状態を示す断面図である。 【符号の説明】 １電池容器 ２電槽 ２ａ隔壁、２ｂ隔壁端面、 ２ｄ外壁、２ｅ外壁端面 ３蓋 ３ａ隔壁、３ｂ隔壁端面、３ｃ隔壁稜線、 ３ｄ外壁、３ｅ外壁端面、３ｆ外壁稜線 ４隔壁リブ ４ａガイド面 ５外壁リブ ５ａガイド面 ６セル室BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing a battery container of a storage battery according to an embodiment. FIG. 2 is a cross-sectional view illustrating a welded state between partition walls according to the embodiment. FIG. 3 is a plan view showing a battery container of a conventional storage battery. FIG. 4 is a sectional view taken along line IV-IV of FIG. 3; FIG. 5 is a cross-sectional view showing a conventional state of welding between partition walls. DESCRIPTION OF SYMBOLS 1 battery container 2 battery case 2a partition wall, 2b partition end surface, 2d outer wall, 2e outer wall end surface 3 lid 3a partition, 3b partition end surface, 3c partition ridge line, 3d outer wall, 3e outer wall end surface, 3f outer wall ridge line 4 partition rib 4a guide surface 5 outer wall rib 5a guide surface 6 cell chamber

Claims (1)

【特許請求の範囲】 【請求項１】電槽隔壁と電槽外壁とを有する電槽と、 前記電槽隔壁と電槽外壁とに当接する蓋隔壁と蓋外壁を
有する蓋とを備えた蓄電池において、 前記電槽及び前記蓋の少なくとも一方の隔壁及び／又は
外壁に、端面より突出するように設けられ、端面から遠
ざかるにつれて前記隔壁及び／又は外壁の肉厚中心線か
ら離れるように傾斜したガイド面を有するリブとを備
え、 前記リブは、ガイド面と壁端面との交線が壁端面と壁主
面との稜線より内側に位置するように設けられているこ
とを特徴とする蓄電池。Claims: 1. A storage battery comprising: a battery case having a battery case partition wall and a battery case outer wall; a lid partition member abutting on the battery case partition wall and the battery case outer wall; and a lid having a cover outer wall. A guide provided on at least one of a partition wall and / or an outer wall of the battery case and the lid so as to protrude from an end face, and inclined away from a center line of the thickness of the partition wall and / or the outer wall as the distance from the end face increases And a rib having a surface, wherein the rib is provided such that an intersection line between the guide surface and the wall end surface is located inside a ridge line between the wall end surface and the wall main surface.
JP2001340378A 2001-11-06 2001-11-06 Storage battery Pending JP2003142041A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001340378A JP2003142041A (en) 2001-11-06 2001-11-06 Storage battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001340378A JP2003142041A (en) 2001-11-06 2001-11-06 Storage battery

Publications (1)

Publication Number Publication Date
JP2003142041A true JP2003142041A (en) 2003-05-16

Family

ID=19154585

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001340378A Pending JP2003142041A (en) 2001-11-06 2001-11-06 Storage battery

Country Status (1)

Country Link
JP (1) JP2003142041A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011210577A (en) * 2010-03-30 2011-10-20 Miyagawa Kasei Ind Co Ltd Lid of storage battery, case of storage battery, storage battery, and method for manufacturing lid of storage battery
EP2814079A2 (en) 2013-06-11 2014-12-17 GS Yuasa International Ltd. Sealed battery
EP2887422A1 (en) 2013-12-18 2015-06-24 GS Yuasa International Ltd. Lead-acid battery, manufacturing method of the same, and lid member for lead-acid battery

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011210577A (en) * 2010-03-30 2011-10-20 Miyagawa Kasei Ind Co Ltd Lid of storage battery, case of storage battery, storage battery, and method for manufacturing lid of storage battery
EP2814079A2 (en) 2013-06-11 2014-12-17 GS Yuasa International Ltd. Sealed battery
CN104241557A (en) * 2013-06-11 2014-12-24 株式会社杰士汤浅国际 Sealed battery
JP2014241207A (en) * 2013-06-11 2014-12-25 株式会社Ｇｓユアサ Sealed battery
EP2814079A3 (en) * 2013-06-11 2015-04-15 GS Yuasa International Ltd. Sealed battery
CN104241557B (en) * 2013-06-11 2019-01-01 株式会社杰士汤浅国际 Closed type battery
EP2887422A1 (en) 2013-12-18 2015-06-24 GS Yuasa International Ltd. Lead-acid battery, manufacturing method of the same, and lid member for lead-acid battery
US10103409B2 (en) 2013-12-18 2018-10-16 Gs Yuasa International Ltd. Lead-acid battery, manufacturing method of the same, and lid member for lead-acid battery

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