JP3549696B2

JP3549696B2 - Lead storage battery

Info

Publication number: JP3549696B2
Application number: JP02423397A
Authority: JP
Inventors: 壮比佐; 俊昭籔本
Original assignee: Furukawa Battery Co Ltd
Current assignee: Furukawa Battery Co Ltd
Priority date: 1997-01-23
Filing date: 1997-01-23
Publication date: 2004-08-04
Anticipated expiration: 2017-01-23
Also published as: JPH10208713A

Description

【０００１】
【発明の属する技術分野】
本発明は、鉛蓄電池に関する。
【０００２】
【従来の技術】
従来の電気自動車、レジャー用電気設備や機器などの電源として鉛蓄電池を製造するに当たり、その製造工程の簡略化から鉛蓄電池組立後に電槽化成工程を経由して製造されるものがあるが、図６示のように、その鉛蓄電池Ａとして、次のように組立てたものに電槽化成処理を施している。即ち、電槽Ｂの内部をその周側壁ｂ１と同じ高さの仕切壁ｂ２により区劃形成された複数個のセル室Ｃ，Ｃ，…内に極板群Ｄ，Ｄ，…を収容し、相隣る極板群の互いに異極性のストラップｄ，ｄを該仕切壁ｂ２を介してセル間接続して成る電池電槽の開口面ｂ３に、該電槽Ｂの開口面ｂ３、即ち電槽Ｂ内の夫々のセル室Ｃ，Ｃ，…の開口面Ｃ１，Ｃ１，…を被覆する蓋板ｅ１に、前記のセル室Ｃ，Ｃ，…に対応する位置に、電槽化成終了後電解液を排出するための排液口Ｆ，Ｆ，…を配設した電槽蓋Ｅを、電槽Ｂの周側壁ｂ１と各仕切壁ｂ２，ｂ２，…の上端に該電槽蓋Ｅの周縁ｅ２と裏面を当接し、接着剤又は熱溶着で結着して鉛蓄電池を組立て、この鉛蓄電池を夫々のセル室内に硫酸電解液を所定量を注入したものに電槽化成を施す。
【０００３】
【発明が解決しようとする課題】
上記従来の鉛蓄電池Ａの構成では、その電槽蓋Ｅの蓋板ｅ１に配設されている各排液口Ｆ，Ｆ，…は、該電槽Ｂの開口面ｂ３、即ち、該電槽Ｂ内の夫々の該セル室Ｃ，Ｃ，…の開口面Ｃ１，Ｃ１，…と同一平面上にあるため、その電槽化成中に各セル室Ｃ，Ｃ，…内の電解液面が上昇し、該排液口Ｆ，Ｆ，…より該蓋板ｅ１の外面に溢れ出てしまうことがしばしば見られ、また、電槽化成終了後は、蓄電池Ａを逆さにして夫々のセル室Ｃ，Ｃ，…内の余剰電解液を完全に排出しなればならないが、蓋板ｅ１とセル室Ｃ，Ｃ，…の開口面Ｃ１，Ｃ１，…とは同一レベルにあるため、該電槽Ｂから外部へ完全には排液されない不都合を生じた。
【０００４】
【課題を解決するための手段】
本発明は、上記従来の課題を解決した鉛蓄電池を提供するもので、電槽２内の仕切壁２ａにより区劃形成された複数個のセル室３，３，…に夫々極板群４，４，…を収容して成る電池電槽に、夫々のセル室３，３，…に対応する個所に電槽化成終了後電解液を排出するための排液口６，６，…を配設された蓋板５ａを有する電槽蓋５を施して成る鉛蓄電池において、該電槽蓋５の蓋板５ａを、これら排液口６，６，…を含む排液口周域板部Ａ１と該排液口周域板部の外側の外域板部Ａ２との間に周壁段部Ａ３を有するものに形成して、該これら排液口６，６，…を含む排液口周域板部Ａ１をその外側の該外域板部Ａ２より高い位置に存せしめ、該排気口周域板部Ａ１に配設されたこれら排液口６，６，…を該電槽２の開口面２ｃより上方に位置せしめると共に各排液口６の外周に該排液口周域板部Ａ１の上面から安全弁装着用の筒状排気筒９を突設せしめたことを特徴とする。
更に本発明によれば、上記の鉛蓄電池において、該排液口周域板部Ａ１の裏面と該周壁段部Ａ３の内周面とで囲繞形成される余剰空間７内に、該電槽２内の各仕切壁２ａに対応する位置に配設した仕切壁８，８，…により、該余剰空間７内をその下面において該電槽２内の夫々のセル室３，３，…の開口面３ｃ，３ｃ，…と連通し、その上面において夫々の排液口６，６，…に連通する小空間７ａ，７ａ，…に区劃したことを特徴とする。
【０００５】
【発明の実施の形態】
図１〜図５は、本発明の実施の１例の鉛蓄電池１を示す。２は、モノブロック電槽を示す。即ち、該モノブロック電槽２は、その内部を仕切壁２ａによって複数個のセル室３，３，…に区劃形成されたもので、該電槽２内の夫々のセル室３，３，…に極板群４，４，…が収容され、常法により相隣る極板群４，４，…の対向する陰極ストラップ４ａ及び陽極ストラップ４ｂを各該仕切壁２ａを貫通してセル間接続し、両端のセル室３，３内の極板群４，４から正極柱ＰＰ及び負極柱ＮＰを植設して電池電槽に構成した。
【０００６】
５は、該電池電槽の上面に施された電槽蓋を示し、その主体である蓋板５ａ、即ち、該電槽２の開口面２ｃ、即ちその内部の夫々のセル室３，３，…の開口面３ｃ，３ｃ，…を被覆する蓋板５ａには夫々のセル室３，３，…に対応する位置に電槽化成終了後、セル室３，３，…内の余剰電解液を排出するための排液口６，６を配設され、その周縁５ｂで該電槽２の周側壁２ｂの上端に当接し、接着剤又は熱溶着で結着されている。ここまでの構成は従来と変わりがない。
【０００７】
本発明の好ましい実施の１例によれば、該電槽蓋５を更に、次のように形成する。
即ち、該電槽蓋５の蓋板５ａに、前記の一列に配設されている排液口６，６，…を含む所望の大きさの面域から成る排液口周域板部Ａ１とその外側を囲繞する外域板部Ａ２との間に周壁段部Ａ３を形成し、該排液口周域板部Ａ１を、該外域板部Ａ２よりも所望の高さ高位に位置せしめた電槽蓋５に形成したものである。而して、該電槽蓋５を上記の電池電槽の開口面２ｃを被覆するべく該電槽２に施したとき、該排液口周域板部Ａ１に配設されたこれら排液口６，６，…は該電槽２の開口面２ｃの上方に、即ち、詳細には、電槽２内の夫々のセル室３，３，…の開口面３ｃ，３ｃ，…の上方に位置せしめられる鉛蓄電池に組立てたものである。
【０００８】
而して、更に詳細には、電槽蓋５はその蓋板５ａの外周の低位の外域板部Ａ２は、その周縁５ｂで電槽２の周側壁２ｂの上端に接着剤と熱溶着で結着され、電槽２の開口面２ｃと略同一のレベルに位置し、その内域のこれらの排液口６，６，…を含む高位の排液口周域板部Ａ１は、略方形の該周壁段部Ａ３と共に、該周壁段部Ａ３による方形の段差壁だけその外周の外域板部Ａ２より上方に突出した方形筐型の突出部に形成され、その突出部の内部、即ち、該排液口周域板部Ａ１の裏面と該周壁段部Ａ３の内周面とで囲繞形成された余剰空間７を介して電槽２の開口面２ｃの上方に排液口６，６，…が位置して有する電槽蓋５に形成される。かくして、このように組立てられた鉛蓄電池の夫々のセル室３，３，…内に夫々の排液口６，６，…を介して所定量の電解液を注入後、電槽化成を施すが、その電槽化成工程で、電解液が上昇しても、夫々のセル室３，３，…の開口面３ｃ，３ｃ，…の上方に該余剰空間７が存するので、その上方の排液口６，６，…から外部に電解液が溢れ出ることがなく、円滑且つ良好な電槽化成が遂行し得る。また、電槽化成終了後、電槽２内の余剰電解液を外部に排除するべく、該蓄電池を逆さにするときは、夫々のセル室３，３，…内の電解液は電槽２の開口面２ｃから、即ち、夫々のセル室３，３，…の開口面３ｃ，３ｃ，…が、その下方に位置する該余剰空間７へ流出し、更にその下方に位置する排液口６，６，…から外部に排出できるので、電槽２内の余剰電解液は完全に電槽２の外部に排除できる。
【０００９】
電槽２内の夫々のセル室３，３，…は、該余剰空間７を介して互いに連通しないようにすることが好ましい。従って、該余剰空間７内に、該電槽２内の夫々の仕切壁２ａ，２ａ，…に対応する位置に仕切壁８，８，…を配設し、これにより、該余剰空間７内をその下面における夫々のセル室３，３，…の開口面３ｃ，３ｃ，…に連通し且つその上面において該高位内面域板部Ａ１に配設した排液口６，６，…に夫々連通する小空間７ａ，７ａ，…に区劃した。
図面では、該余剰空間７内を仕切る該仕切壁８，８，…は、該電槽２内の仕切壁２ａ，２ａ，…を、その周側壁２ｂの上端よりも上方に延びその上端が高位の排液口周域板部Ａ１の裏面に当接する高さを有する延長仕切壁で構成した。かくして、上記構成の電槽蓋５をその蓋板５ａの低位外周域板部Ａ２の下向きに設けた周側縁５ｂとその蓋板５ａの裏面を夫々対応する該電池電槽の電槽２の周側壁２ｂの上端並びに該仕切壁２ａ，２ａ，…から上方に突出する延長仕切壁８，８，…の上端に夫々当接し、接着剤又は熱溶着により封口結着して本発明の鉛蓄電池に構成した。
前記の仕切壁８，８，…は、図示しないが、該排液口周域板部Ａ１の裏面から一体に下垂し、その下端が該電槽２の夫々の対応する仕切壁２ａ，２ａ，…の上端に当接する高さを有する下垂仕切壁で構成しても良く、また、上記の電槽の仕切壁の延長仕切壁と該排液口周域板部Ａ１の裏面からの下垂仕切壁との両仕切壁を当接結着させて構成しても良い。
かくして、電槽化成は、夫々のセル室３，３，…は、その上方の小空間９ａ，９ａ，…ごとに互いに絶縁状態で夫々互いに悪影響なく良好に行われ、また、電解液の排液も夫々対応する小空間７ａ，７ａ，…を介して排液口６，６，…から排出されるので、夫々のセル室３，３，…内の余剰電解液の排出が完全に行われ、かくして良質の鉛蓄電池が得られる。
【００１０】
尚、該余剰空間７は、図１〜図５に明らかなように、該電槽２の開口面２ｃ、即ち、全てのセル室３，３，…の開口面３ｃ，３ｃ，…の大部分の面域と連通する大きい余剰空間７に形成するべく該蓋板５ａの大部分の内面域を全てのセル室３，３，…の幅方向に、排液口６，６，…の並ぶ１側から他側に端縁近傍までの広幅に亘る方形の排液口周域板部Ａ１とその外周に方形の周壁段部Ａ３とで区劃された余剰空間に形成することが好ましい。而して、その外周の低位の外域板部Ａ２に、前記の陰，陽極柱ＮＰ，ＰＰを貫通突出せしめ、低位置に配置した。図面でＮＴ，ＰＴは、前記の陰，陽極柱ＮＰ，ＰＰに夫々接続する該蓋板５ａの上面に固設したスタッドボルト型陰極端子と陽極端子を示す。
【００１１】
尚、図示の該鉛蓄電池は、防爆密閉型鉛蓄電池とするべく、該排液口周域板部Ａ１の上面に次のような防爆型の一括排気装置を設けた。
即ち、これら排液口６，６，…をその外周に該蓋板５ａの該排液口周域板部Ａ１の上面から突出する円筒状壁９，９，…をもつ筒状とし、これにゴム製の帽状安全弁１０，１０，…をその弾性により装着し、これら筒状排気筒９，９，…を囲繞して該排液口周域板部Ａ１の周縁に沿い方形の一括排気用囲枠１１を設けると共に、その囲枠１１に一括排気ノズル１１ａと該一括排気ノズルの外周に排気チューブ接続用の円環状の嵌合孔１１ｂを設けた。好ましくは、該囲枠１１の内部に、直角に折り曲がり、該蓋板５ａの１側に並ぶ排気筒９，９，…とは反対側に延びるＬ字状の一対の案内枠１１ｂ，１１ｂをこれら排気筒９，９，…の１側に沿い長さ方向に延び且つこれらの間に排気案内凹溝１２を存して該一括排気ノズル１１ａに導くように左右に配置して突設し、更に、その排気案内凹溝１２内に防爆フィルター１３を介在させ、好ましくは、一括排気ノズル１１ａの近傍に、排気筒９，９，…から可及的に遠い位置に介在させ、その囲枠１１上面に排気覆板１４を接着剤又は熱溶着を介して気密に結着して、常閉、防爆型一括排気装置を設けた。セル室３，３，…内に発生したガス圧が過剰となったとき、該排液口６，６，…は排気口として作用し、常閉の安全弁１０，１０，…は該過剰圧により押し開かれて過剰ガスを外部に一括排気し、該防爆フィルター１３により外部から引火によるガス爆発を防止された安全な常閉密閉型鉛蓄電池に構成した。
尚、該囲枠１１を利用してこれに左右一対の提げ手１５，１５を起倒自在に取り付けた。１６は、該排気覆板１３に設けた提げ手１５，１５の把持部１５ａ，１５ａを収容する凹溝を示す。
【００１２】
【発明の効果】
このように本発明によるときは、鉛蓄電池の電槽蓋５の蓋板５ａに配設された排液口６，６，…を含む排液口周域板部Ａ１と、その外側の外域板部Ａ２との間に周壁段部Ａ３を形成して該排液口周壁板部Ａ１を該電槽２の開口面２ｃよりも上方に位置せしめたので、その電槽化成中に電解液が該排液口６，６，…から外部に溢れ出ることがなく、円滑且つ良好な電槽化成を行うことができ、また、電槽化成後の余剰電解液の排出を完全に行うことができる効果をもたらし、また、各該排液口６の外周に該排液口周域板部Ａ１の上面から突出する安全弁装着用筒状排気筒９を設けたので、上記の余剰電解液の完全排出を妨げることなく防爆型密閉鉛蓄電池を構成することができる等の効果をもたらす。
更に本発明によれば、上記の鉛蓄電池において、該電槽蓋５に、該排液口周域板部Ａ１の裏面と該周壁段部Ａ３の内周面とにより、余剰空間７内を囲繞形成し、その余剰空間７に該電槽２内の夫々の各仕切壁２ａ，２ａ，…に対応する位置に仕切壁８，８，…を配設し、該余剰空間７内をその下面において該電槽２の夫々のセル室３，３，…の開口面３ｃ，３ｃ，…とその上面において夫々の排液口６，６，…に連なる夫々小空間７ａ，７ａ，…に区劃することにより、夫々のセル室３，３，…内の上方に夫々の小空間７ａ，７ａ，…が存するので、各セル室における電槽化成処理を夫々良好に行うことができると共に、電槽化成中に各セル室内の電解液が対応する各該排液口６から外部に溢れ出ることを防止でき、また、電槽化成終了後は、夫々のセル室内の余剰電解液の排出を完全に行うことができる。
【図面の簡単な説明】
【図１】本発明実施の１例の鉛蓄電池の排気覆板の半部を裁除した平面図。
【図２】図１のＩＩ−ＩＩ線鉛蓄電池の半部裁断面図。
【図３】図１のＩＩＩ−ＩＩＩ線裁断面図。
【図４】図１のＩＶ−ＩＶ線裁断面図。
【図５】図１のＶ−Ｖ線裁断面図。
【図６】従来の鉛蓄電池の一部を裁除した側面図。
【符号の説明】
１鉛蓄電池２電槽２ａ仕切壁
２ｃ電槽の開口面３セル室３ｃセル室の開口面
４極板群５電槽蓋５ａ蓋板
Ａ１排液口周域板部Ａ２外域板部Ａ３周壁段部
６排液口７余剰空間７ａ小空間
８仕切壁[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a lead storage battery.
[0002]
[Prior art]
When manufacturing lead-acid batteries as a power source for conventional electric vehicles, leisure electrical equipment and equipment, there are some that are manufactured via a battery case formation process after assembling the lead-acid batteries due to the simplification of the manufacturing process. As shown in FIG. 6, as the lead storage battery A, the battery assembled as follows is subjected to battery case formation treatment. That is, the electrode groups D, D,... Are accommodated in a plurality of cell chambers C, C,. The opening b3 of the battery case B, that is, the battery case, is formed on the opening surface b3 of the battery case formed by connecting the straps d, d of mutually opposite polarities of the adjacent electrode plate groups between cells via the partition wall b2. , B, on the cover plate e1 covering the opening surfaces C1, C1,... Of the respective cell chambers C, C,. Are disposed on the peripheral side wall b1 of the battery case B and the upper ends of the partition walls b2, b2,... On the peripheral edge e2 of the battery case cover E. Then, a lead storage battery is assembled by bonding with an adhesive or heat welding, and a battery container is formed by injecting a predetermined amount of a sulfuric acid electrolyte into each cell chamber of the lead storage battery.
[0003]
[Problems to be solved by the invention]
In the configuration of the conventional lead storage battery A, the drain ports F, F,... Provided on the cover plate e1 of the battery case cover E are provided on the opening surface b3 of the battery case B, that is, the battery case. B are on the same plane as the opening surfaces C1, C1,... Of the respective cell chambers C, C,..., So that the electrolyte levels in the respective cell chambers C, C,. .. Often overflow from the drainage ports F, F,... To the outer surface of the lid plate e1. After the battery case formation, the storage batteries A are turned upside down and the respective cell chambers C, C,. .. Must be completely discharged. However, since the cover plate e1 and the opening surfaces C1, C1,... Of the cell chambers C, C,. There was a problem that the liquid was not completely drained to the outside.
[0004]
[Means for Solving the Problems]
The present invention, above problems is provided a lead-acid battery that solves, battery jar plurality of cell chambers which are Kukaku formed by the partition walls 2a in 2 3,3, s husband ... the electrode plate group 4, 4, ... to the battery the battery container Ru formed to accommodate a drainage port 6,6 for discharging the battery case conversion after completion electrolyte at a location corresponding cell chamber 3,3 respectively, to ..., ... distribution in lead-acid battery comprising applying the container lid 5 having a set lids plate 5a, the cover plate 5a of the electric vessel lid 5, these drain port 6,6, liquid discharge port peripheral zone plate portion including a ... A1 formed into one having a peripheral wall step portion A3 between the outer zone plate portion A2 of the outer exhaust liquid inlet peripheral region plate portion and, said these drain port 6,6, liquid discharge port peripheral zone plate containing ... allowed presence of parts A1 to a position higher than the outer region the plate portion A2 of the outer, exhaust port peripheral zone plate portion A1 these drain port 6, 6 disposed in the ... of the power chamber 2 open mouth surface 2c Rank higher Characterized in that allowed allowed Rutotomoni projecting tubular exhaust stack 9 for top from the safety valve mounted in the exhaust liquid inlet peripheral region plate portion A1 on the outer circumference of the drain port 6.
Furthermore, according to the present invention, in the above-mentioned lead-acid battery, the battery case 2 is provided in an excess space 7 formed by the back surface of the drain port peripheral plate A1 and the inner peripheral surface of the peripheral wall step A3. partition walls 8,8 is disposed at a position corresponding to the partition wall 2a of the inner, ... by, the surplus space 7 within the cell chamber of each of the electric vessel 2 at its lower surface 3, 3, ... apertures of surface 3c, 3c, ... and communication, drain port 6,6 respectively in its upper surface, ... duplicate through that small space 7a, 7a, and characterized in that Kukaku to ....
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
1 to 5 show a lead storage battery 1 according to an embodiment of the present invention. Reference numeral 2 denotes a monoblock battery case. That is, the monoblock battery case 2 is formed by partitioning the inside thereof into a plurality of cell chambers 3, 3,... By a partition wall 2a. Are housed in the electrode groups 4, 4,..., And the opposing cathode straps 4a and anode straps 4b of the adjacent electrode groups 4, 4,. The positive electrode column PP and the negative electrode column NP were implanted from the electrode groups 4 and 4 in the cell chambers 3 and 3 at both ends to form a battery case.
[0006]
5 shows the electrodeposition bath lid applied on top of the battery the container, the cover plate 5a is that principal, i.e., an open mouth surface 2c of the electrolyte bath 2, i.e. the interior of each of the cell chamber that 3,3 , ... of the open mouth faces 3 c, 3 c, after the battery case conversion completed cell chamber 3,3 respectively, at positions corresponding to ... to the cover plate 5a for covering an ..., cell chamber 3,3, ... in the Drainage ports 6 and 6 for discharging the surplus electrolyte are provided, and their peripheral edges 5b abut against the upper end of the peripheral side wall 2b of the battery case 2 and are bonded by an adhesive or heat welding. The configuration so far is the same as the conventional one.
[0007]
According to a preferred embodiment of the present invention, the battery case lid 5 is further formed as follows.
That is, on the cover plate 5a of the battery case cover 5, a drain port peripheral area plate portion A1 having a surface area of a desired size including the drain ports 6, 6,... A battery case in which a peripheral wall step portion A3 is formed between the outer peripheral plate portion A2 and the outer peripheral plate portion A2, and the drain port peripheral peripheral plate portion A1 is positioned at a desired height higher than the outer peripheral plate portion A2. It is formed on the lid 5. Thus, when the battery case lid 5 is applied to the battery case 2 so as to cover the opening surface 2c of the battery case, the drainage ports arranged on the drainage peripheral area plate portion A1 are formed. Are positioned above the opening surface 2c of the battery case 2, that is, specifically, above the opening surfaces 3c, 3c,... Of the respective cell chambers 3, 3,. It is assembled into a lead storage battery.
[0008]
And Thus, further details, outer zone plate portion A2 of the lower of the outer periphery of the container lid 5 is the cover plate 5a is an adhesive and heat welding the peripheral side wall 2 b the upper end of the container 2 at its peripheral edge 5b , Which is located at substantially the same level as the opening surface 2c of the battery case 2 and includes a high-level drain port peripheral area plate portion A1 including these drain ports 6, 6,. Along with the peripheral wall step A3, only a rectangular step wall formed by the peripheral wall step A3 is formed in a rectangular housing-type projection protruding above the outer peripheral plate A2 on the outer periphery thereof. The liquid discharge ports 6, 6,... Above the opening surface 2c of the battery case 2 via a surplus space 7 formed by the back surface of the liquid discharge port peripheral plate A1 and the inner peripheral surface of the peripheral wall step A3 . Is formed on the battery case lid 5 which is located. Thus, a predetermined amount of the electrolyte is injected into each of the cell chambers 3, 3,... Of the lead-acid battery thus assembled through the respective drain ports 6, 6,. In the case formation process, even if the electrolytic solution rises, the excess space 7 exists above the opening surfaces 3c, 3c,... Of the respective cell chambers 3, 3,. The electrolyte solution does not overflow from 6, 6,... To the outside, and a smooth and good battery formation can be performed. When the storage batteries are turned upside down after the battery case formation in order to remove the excess electrolyte solution in the battery case 2 to the outside, the electrolyte solution in each of the cell chambers 3, 3,. from the opening surface 2c, i.e., each of the cell chambers 3, 3, ... opening surface 3c of, 3c, ... are, flows into the compensation volume 7 located on the lower side, further drainage port located on the lower side Can be discharged to the outside, so that the excess electrolyte in the battery case 2 can be completely removed to the outside of the battery case 2.
[0009]
It is preferable that the cell chambers 3, 3,... In the battery case 2 do not communicate with each other via the surplus space 7. Therefore, in the surplus space 7, the partition walls 8, 8, ... are disposed at positions corresponding to the respective partition walls 2a, 2a, ... in the battery case 2, so that the inside of the surplus space 7 is formed. On its lower surface, it communicates with the opening surfaces 3c, 3c,... Of the respective cell chambers 3, 3,... And on its upper surface it communicates with the drainage ports 6, 6,. It is divided into small spaces 7a, 7a, ....
In the drawing, the partition walls 8, 8, ... that partition the surplus space 7 extend above the upper ends of the peripheral side walls 2b of the partition walls 2a, 2a, ... in the battery case 2. And an extended partition wall having a height contacting the back surface of the drain port peripheral plate A1. In this manner, the battery case lid 5 having the above-described configuration is formed such that the peripheral edge 5b provided below the lower outer peripheral area plate portion A2 of the cover plate 5a and the back surface of the cover plate 5a correspond to the battery case 2 of the battery case. upper and the partition Setsukabe 2a of the peripheral side wall 2b, 2a, extending partition walls 8, 8 projecting from ... upwardly, upper ends respectively abut the, and sealing formation applied by adhesive or heat welding lead-acid battery of the present invention Configured.
The partition walls 8, 8,..., Which are not shown, hang down integrally from the back surface of the drain port peripheral area plate portion A1, and the lower ends thereof correspond to the corresponding partition walls 2a, 2a, May be constituted by a hanging partition wall having a height contacting the upper end of..., Or a hanging partition wall extending from the back surface of the drain port peripheral area plate portion A1 and an extended partition wall of the above-mentioned battery case partition wall. The two partition walls may be abutted and connected.
Thus, the cell formation is performed favorably without adversely affecting each of the cell chambers 3, 3,... In each of the small spaces 9a, 9a,. Are discharged from the drainage ports 6, 6,... Through the corresponding small spaces 7a, 7a,..., Respectively, so that the excess electrolyte in each of the cell chambers 3, 3,. Thus, a good quality lead storage battery can be obtained.
[0010]
As shown in FIGS. 1 to 5, the surplus space 7 has a large part of the opening surface 2c of the battery case 2, that is, most of the opening surfaces 3c, 3c,. Of the lid plate 5a in the width direction of all the cell chambers 3, 3,... In order to form a large surplus space 7 communicating with the surface area of It is preferable to form a surplus space defined by a rectangular drain port peripheral plate A1 extending from the side to the other side and near the edge and a rectangular peripheral wall step A3 on the outer periphery thereof. The negative and anode columns NP and PP penetrate and protrude from the lower outer region plate portion A2 on the outer periphery thereof, and are arranged at a low position. In the drawings, NT and PT denote a stud bolt type cathode terminal and an anode terminal fixed to the upper surface of the cover plate 5a connected to the above-mentioned negative and anode columns NP and PP, respectively.
[0011]
The lead storage battery shown in the drawing was provided with the following explosion-proof collective exhaust device on the upper surface of the drain port peripheral area plate portion A1 so as to be an explosion-proof sealed lead storage battery.
That is, these liquid discharge port 6, 6, ... the cylindrical wall 9, 9 that protrudes from the upper surface of the exhaust liquid inlet peripheral region plate portion A1 of the lid plate 5a on its outer circumference, a cylindrical shape having a ..., to The rubber cap-shaped safety valves 10, 10,... Are mounted by their elasticity, and surround the cylindrical exhaust pipes 9, 9 ,. In addition to providing the surrounding frame 11, the surrounding frame 11 is provided with a collective exhaust nozzle 11a and an annular fitting hole 11b for connecting an exhaust tube on the outer periphery of the collective exhaust nozzle. Preferably, a pair of L-shaped guide frames 11b, 11b, which are bent at a right angle and extend on the opposite side to the exhaust cylinders 9, 9, ... arranged on one side of the cover plate 5a, are provided inside the enclosure 11. .. Extend in the length direction along one side of the exhaust cylinders 9, 9,..., And are disposed right and left so as to be led to the collective exhaust nozzle 11a with an exhaust guide groove 12 therebetween. Further, an explosion-proof filter 13 is interposed in the exhaust guide groove 12, preferably in the vicinity of the collective exhaust nozzle 11a at a position as far as possible from the exhaust cylinders 9, 9,. An exhaust cover plate 14 was air-tightly bonded to the upper surface via an adhesive or heat welding to provide a normally closed, explosion-proof collective exhaust device. When the gas pressure generated in the cell chambers 3, 3,... Becomes excessive, the drain ports 6, 6,... Act as exhaust ports, and the normally closed safety valves 10, 10,. Exhaust gas is pushed and opened to collectively exhaust excess gas to the outside, and the explosion-proof filter 13 prevents the gas explosion due to ignition from the outside.
In addition, a pair of right and left hand members 15, 15 was attached to the surrounding frame 11 so as to be able to be turned upside down. Reference numeral 16 denotes a concave groove provided on the exhaust cover plate 13 for accommodating the grip portions 15a, 15a of the holding hands 15, 15.
[0012]
【The invention's effect】
Thus, in the case according to the present invention, liquid discharge port 6,6 disposed in the lid plate 5a of the container lid 5 of a lead-acid battery, ... and drain port peripheral zone plate portion A1 containing, outer zone plate outside since was allowed position exhaust liquid outlet wall plate portion A1 to form a peripheral wall step portion A3 above the opening surface 2c of the electric vessel 2 between the parts A2, electrolyte said in the battery container Chemical drain port 6 and 6, without overflowing outside from ..., you can make a smooth and good conductive container formation, also Ru can be completely carried out the discharge of the excess electrolyte solution after electrodeposition container formation Since the exhaust valve 6 is provided with a safety valve mounting cylindrical exhaust pipe 9 protruding from the upper surface of the drain port peripheral area plate portion A1 on the outer periphery of each of the drain ports 6, the above-mentioned complete discharge of the excess electrolyte is completed. Thus, an effect such as that an explosion-proof sealed lead-acid battery can be formed without hindrance is provided .
Furthermore, according to the present invention, in the above-described lead-acid battery, the battery case lid 5 surrounds the surplus space 7 with the back surface of the drain port peripheral plate A1 and the inner peripheral surface of the peripheral wall step A3. formed, the surplus space 7 in the partition wall 2a of each of the electric vessel 2, 2a, ... partition walls 8, 8 at a position corresponding to, and arranged ..., in its bottom surface within the surplus spaces 7 electric tank 2 of each of the cell chambers 3, 3, ... opening surface 3c of, 3c, ... a drain port 6,6 respectively at its top, s respectively communicating ... into the small space 7a, 7a, to Kukaku ... to by, each of the cell chambers 3,3, each upwardly in the ... 's small space 7a, 7a, ... so resides, it is possible to perform the electrostatic container formation process in each cell chamber each well, battery jar Chemical electrolyte in each cell chamber can be prevented from overflowing from the exhaust liquid inlet 6 corresponding to the external during the addition, conductive container formation after the end The discharge of the excess electrolyte cell chamber of each can be completely performed.
[Brief description of the drawings]
FIG. 1 is a plan view of a lead-acid battery according to an embodiment of the present invention, in which a half of an exhaust cover plate has been cut out.
FIG. 2 is a half sectional view of the lead-acid battery of FIG. 1 taken along line II-II.
FIG. 3 is a sectional view taken along line III-III of FIG. 1;
FIG. 4 is a sectional view taken along line IV-IV of FIG. 1;
FIG. 5 is a sectional view taken along line VV of FIG. 1;
FIG. 6 is a side view in which a part of a conventional lead storage battery is cut away.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lead storage battery 2 Battery case 2a Partition wall
2c 5 electrodeposition tank electrodeposition bath opening face 4 electrode plate group of the opening surface 3 cell chamber 3c cell chamber lid 5a cover plate A1 drain port peripheral zone plate portion A2 outer zone plate portion A3 wall stepped section 6 liquid discharge port 7 surplus spaces 7a Small space 8 partition wall

Claims

電槽２内の仕切壁２ａにより区劃形成された複数個のセル室３，３，…に夫々極板群４，４，…を収容して成る電池電槽に、夫々のセル室３，３，…に対応する個所に電槽化成終了後電解液を排出するための排液口６，６，…を配設された蓋板５ａを有する電槽蓋５を施して成る鉛蓄電池において、該電槽蓋５の蓋板５ａを、これら排液口６，６，…を含む排液口周域板部Ａ１と該排液口周域板部の外側の外域板部Ａ２との間に周壁段部Ａ３を有するものに形成して、該これら排液口６，６，…を含む排液口周域板部Ａ１をその外側の該外域板部Ａ２より高い位置に存せしめ、該排気口周域板部Ａ１に配設されたこれら排液口６，６，…を該電槽２の開口面２ｃより上方に位置せしめると共に各排液口６の外周に該排液口周域板部Ａ１の上面から安全弁装着用の筒状排気筒９を突設せしめたことを特徴とする鉛蓄電池。 The container by a partition wall 2a in 2 Kukaku formed a plurality of cell chamber 3,3, ... respectively the electrode plate group 4, 4, the battery battery container formed by accommodating a ..., each of the cell chamber 3, In a lead-acid battery provided with a battery case lid 5 having a cover plate 5a provided with drainage ports 6, 6,... For discharging electrolyte after completion of battery case formation at locations corresponding to 3 ,. The cover plate 5a of the battery case cover 5 is placed between the drain port peripheral plate A1 including the drain ports 6, 6,... And the outer panel A2 outside the drain port peripheral plate. formed into one having a peripheral wall step portion A3, said these drain port 6,6, allowed presence drainage outlet peripheral region plate portion A1 containing ... at a position higher than the outer region the plate portion A2 of the outer, exhaust mouth peripheral zone plate portion A1 these drain port 6,6 disposed, exhaust liquid inlet peripheral ... to the outer periphery of the electrolyte bath allowed positioned above the second open mouth faces 2c Rutotomoni the drain port 6 Upper surface of area plate part A1 Lead-acid battery, characterized in that it allowed projecting tubular exhaust stack 9 Luo safety valve for mounting.

該排液口周域板部Ａ１の裏面と該周壁段部Ａ３の内周面とで囲繞形成される余剰空間７内に、該電槽２内の各仕切壁２ａに対応する位置に配設した仕切壁８，８，…により、該余剰空間７内をその下面において該電槽２内の夫々のセル室３，３，…の開口面３ｃ，３ｃ，…と連通し、その上面において夫々の排液口６，６，…に連通する小空間７ａ，７ａ，…に区劃したことを特徴とする請求項１記載の鉛蓄電池。Arranged at a position corresponding to each partition wall 2a in the battery case 2 in a surplus space 7 formed by the back surface of the drain port peripheral area plate portion A1 and the inner peripheral surface of the peripheral wall step portion A3. by the partition walls 8, 8, ..., the surplus spaces 7 in the electric vessel 2 within the respective cell chamber at its lower surface 3, 3, ... of the open mouth faces 3c, 3c, ... and communicates, at its upper surface drain port 6, 6 each, that through series ... two small spaces 7a, 7a, lead-acid battery according to claim 1, characterized in that Kukaku ... to.