JP5472799B2 - Lead acid battery - Google Patents

Lead acid battery Download PDF

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JP5472799B2
JP5472799B2 JP2009280452A JP2009280452A JP5472799B2 JP 5472799 B2 JP5472799 B2 JP 5472799B2 JP 2009280452 A JP2009280452 A JP 2009280452A JP 2009280452 A JP2009280452 A JP 2009280452A JP 5472799 B2 JP5472799 B2 JP 5472799B2
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lid
exhaust port
side wall
lead
wall surface
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JP2011124082A (en
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恭秀 中山
英次 北條
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GS Yuasa International Ltd
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    • 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

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Description

本発明は、特に自動二輪車又は自動車などの車両に搭載する場合に最適な鉛蓄電池に関する。   The present invention relates to a lead-acid battery that is optimal when mounted on a vehicle such as a motorcycle or an automobile.

上記鉛蓄電池では、セル室で発生したガスを外部に排出するための排気孔が蓋体に備えられる。その蓋体の上面には、長辺方向と平行な側壁面を有した凸部が形成され、その側壁面に前記排気孔が形成されたものが提案されている（例えば、特許文献１参照）。   In the lead storage battery, the lid is provided with an exhaust hole for discharging the gas generated in the cell chamber to the outside. On the upper surface of the lid, a projection having a side wall surface parallel to the long side direction is formed, and the exhaust hole is formed on the side wall surface (for example, see Patent Document 1). .

特開２００２−３２４５３７号公報（図１参照）JP 2002-324537 A (see FIG. 1)

通常、鉛蓄電池は、図１０（ａ）に示すように、蓋体１の上面１Ｙが上方を向いた縦向きで車両に搭載されることになるが、自動二輪車などでは、設置スペースに制限を受けることがあり、通常通りの配置ができない場合がある。例えば、図１０（ｂ）に示すように、蓋体１の長辺方向の側面１Ｗが上面となるように鉛蓄電池を後方に倒した傾倒状態で配置しなければならない場合があり、このような配置にすると、次のような不都合があった。なお、図１０（ａ），（ｂ）に示す２，３は端子である。   Normally, as shown in FIG. 10A, the lead storage battery is mounted on the vehicle with the upper surface 1Y of the lid body 1 facing upward, but in a motorcycle or the like, the installation space is limited. You may not be able to arrange as usual. For example, as shown in FIG. 10 (b), the lead-acid battery may have to be disposed in a tilted state so that the side surface 1W in the long side direction of the lid body 1 is the upper surface. The arrangement had the following inconveniences. In addition, 2 and 3 shown to FIG. 10 (a), (b) are terminals.

つまり、前記鉛蓄電池を傾倒状態にすると、排気口４Ｋが形成された側面１Ｗが上方を向いた状態になるため、図１０（ｂ）に示すように上方から矢印の方向に向かって塵などが排気口４Ｋに入り易く、排気口４Ｋを塞いでしまう不都合が生じる可能性があり、改善の余地があった。   That is, when the lead storage battery is tilted, the side surface 1W where the exhaust port 4K is formed faces upward, so that dust or the like is directed from above to the direction of the arrow as shown in FIG. There is a possibility of inconvenience that the exhaust port 4K easily enters and blocks the exhaust port 4K, and there is room for improvement.

そこで、本発明はかかる状況に鑑みてなされたものであって、塵などが排気孔に入り込み難い鉛蓄電池を提供することにある。   Therefore, the present invention has been made in view of such a situation, and it is an object of the present invention to provide a lead storage battery in which dust or the like is difficult to enter the exhaust hole.

即ち、本発明の鉛蓄電池は、前述の課題解決のために、少なくとも１つのセル室を備えた電槽と、周縁部が前記電槽の上部開口縁部に接合される長方形状の蓋体とを備えた鉛蓄電池であって、前記蓋体には、長辺方向と交差する又は直交する方向に延びる一対の凸部が長辺方向に間隔をあけて対向配置され、一方の凸部の対向面である側壁面には、前記セル室からのガスを外部に排出するための排気口が形成され、前記排気口を形成した凸部の側壁面が、前記蓋体の外周縁部よりも内方側に位置していることを特徴としている。 In other words, lead-acid battery of the present invention, for the above-mentioned problem solution, and at least one conductive with the cell chamber tank, a rectangular lid periphery Ru is joined to the upper opening edge of the battery container A pair of convex portions extending in a direction intersecting or orthogonal to the long side direction are arranged to face each other with a gap in the long side direction, and the one convex portion is opposed to the lid body. inner to the side wall surface is a surface, an exhaust port for exhausting gas from the cell chamber to the outside are formed, the side wall surface of the convex portion formed to the exhaust port than the outer peripheral edge portion of the lid It is characterized by being located on the side.

上記構成によれば、蓋体の上面が上方を向くように縦向きで車両に搭載する場合は、従来と同様に排気口を備えた側壁面が上方に向いていないため、排気口に塵などが入り難くすることができる。しかも、蓋体の長辺方向の側面が上面となるように鉛蓄電池を後方に倒した傾倒状態で配置した場合でも、排気口を備えた側壁面が上下方向と異なる方向に形成されていることから、排気口へ塵などが入り難くできる。また、排気口を形成した凸部の側壁面を蓋体の外周縁部よりも内方側に位置させることにより、鉛蓄電池を車両に搭載する場合に、凸部の側壁面が搭載場所の壁面に接触した場合や搭載用の固定治具に接触した場合でも、排気口が塞がれないようにできるとともに、凸部の側壁面と蓋体の外周縁部との間にスペースを形成することができて、このスペースに排気口を覆うための庇などを配置すれば、排気口へ塵などが入り込むことを更に阻止することができる。   According to the above configuration, when the vehicle is mounted vertically on the vehicle so that the upper surface of the lid faces upward, the side wall provided with the exhaust port does not face upward as in the conventional case. Can be difficult to enter. Moreover, even when the lead-acid battery is placed in a tilted state so that the side surface in the long side direction of the lid is the upper surface, the side wall surface provided with the exhaust port is formed in a direction different from the vertical direction. This makes it difficult for dust to enter the exhaust port. In addition, when the lead storage battery is mounted on the vehicle by positioning the side wall surface of the convex portion forming the exhaust port on the inner side of the outer peripheral edge portion of the lid body, the side wall surface of the convex portion is the wall surface of the mounting location. The exhaust port can be prevented from being blocked even when it is in contact with the mounting fixture or a mounting fixture, and a space is formed between the side wall surface of the convex portion and the outer peripheral edge of the lid. If a gutter or the like for covering the exhaust port is disposed in this space, dust and the like can be further prevented from entering the exhaust port.

また、本発明の鉛蓄電池は、前記蓋体の長辺方向両端のそれぞれに、端子を備え、該両端子間に前記一対の凸部が位置していてもよい。 Moreover, the lead storage battery of this invention may be equipped with the terminal in each of the long-side direction both ends of the said cover body, and a pair of said convex part may be located between this both terminals.

また、本発明の鉛蓄電池は、前記側壁面に形成された排気口の周囲には、該側壁面から突出し、かつ、周方向で所定間隔を置いて配置される複数の突起が形成されていてもよい。 Further, in the lead storage battery of the present invention, a plurality of protrusions that protrude from the side wall surface and are arranged at predetermined intervals in the circumferential direction are formed around the exhaust port formed in the side wall surface. Also good.

本発明における鉛蓄電池にあっては、排気口を蓋体の長辺方向と異なる方向の側壁面を有した凸部の側壁面に備えることによって、蓋体の上面が上方を向いた縦向きで車両に搭載する場合は、従来同様に塵などが入り難くすることができ、蓋体の長辺方向の側面が上面となるように鉛蓄電池を後方に倒した傾倒状態で配置した場合でも、排気口へ塵などが入り難くできる信頼性の高い鉛蓄電池を提供することができる。さらに、凸部の側壁面と蓋体の外周縁部との間に形成されるスペースを庇などの配置スペースに利用すれば、排気口へ塵などが入り込むことを更に阻止することができ、より一層信頼性の高い鉛蓄電池とすることができる。   In the lead storage battery according to the present invention, the upper surface of the lid body is vertically oriented with the exhaust port provided on the side wall surface of the convex portion having the side wall surface in a direction different from the long side direction of the lid body. When installed in a vehicle, dust can be made difficult to enter as in the conventional case, and even when the lead storage battery is placed in a tilted state with the long side of the lid facing the top surface, It is possible to provide a highly reliable lead storage battery that can prevent dust from entering the mouth. Furthermore, if the space formed between the side wall surface of the convex portion and the outer peripheral edge portion of the lid is used as an arrangement space such as a soot, dust and the like can be further prevented from entering the exhaust port. It can be set as a more reliable lead acid battery.

第１の実施形態に係る鉛蓄電池の上蓋を装着した蓋体の平面図である。It is a top view of the lid with which the top lid of the lead acid battery concerning a 1st embodiment was equipped. 同上蓋を装着する前の蓋体の平面図である。It is a top view of the cover body before mounting | wearing with a cover same as the above. （ａ）は同上蓋の上面図、（ｂ）は同上蓋の裏面図である。(A) is a top view of the upper lid, and (b) is a back view of the upper lid. （ａ）は第１の実施形態に係る鉛蓄電池の第２排気孔の周辺を示す斜視図、（ｂ）は（ａ）における排気口付近の正面図である。(A) is a perspective view which shows the periphery of the 2nd exhaust hole of the lead acid battery which concerns on 1st Embodiment, (b) is a front view of the exhaust port vicinity in (a). 第２の実施形態に係る鉛蓄電池の上蓋を装着した蓋体の平面図である。It is a top view of the lid with which the upper lid of the lead storage battery concerning a 2nd embodiment was equipped. 同上蓋を装着する前の蓋体の平面図である。It is a top view of the cover body before mounting | wearing with a cover same as the above. （ａ）は同上蓋の上面図、（ｂ）は同上蓋の裏面図である。(A) is a top view of the upper lid, and (b) is a back view of the upper lid. （ａ）は第２の実施形態に係る鉛蓄電池の第２排気孔の周辺を示す斜視図、（ｂ）は（ａ）における排気口付近の正面図である。(A) is a perspective view which shows the periphery of the 2nd exhaust hole of the lead acid battery which concerns on 2nd Embodiment, (b) is a front view of the exhaust port vicinity in (a). （ａ）〜（ｇ）は第１、第２の実施形態に係る鉛蓄電池の変形例の斜視図である。(A)-(g) is a perspective view of the modification of the lead acid battery which concerns on 1st, 2nd embodiment. （ａ）は鉛蓄電池の従来例に係る正面図、（ｂ）は（ａ）の鉛蓄電池を後方に倒した傾倒状態で配置した状態を示す側面図である。(A) is a front view which concerns on the prior art example of a lead acid battery, (b) is a side view which shows the state arrange | positioned in the tilted state which fell the lead acid battery of (a) back.

以下、本発明に係る鉛蓄電池の実施形態について、図面を参照しつつ詳細に説明する。   Hereinafter, embodiments of a lead storage battery according to the present invention will be described in detail with reference to the drawings.

図１、図２及び図３に、本発明の鉛蓄電池の第１の実施形態に係る蓋体１の一例を示し、図１では、後述する上蓋５を装着した状態を示し、図２では、後述する上蓋５を装着する前の状態を示し、図３は後述する上蓋５を示している。この蓋体１は、合成樹脂等によって平面視において長方形状に形成され、複数に仕切られたセル室を備えた電槽（図示せず）の上部開口縁部に接合して該上部開口部を覆うものである。前記蓋体１を備えた鉛蓄電池は、特に自動二輪車や自動車などの車両に搭載する場合に適しているが、その他の目的で使用することもできる。なお、図１、図２及び図３において蓋体１の長辺方向を左右方向とし、長辺方向と直交する短辺方向を前後方向として説明する。   1, FIG. 2 and FIG. 3 show an example of a lid 1 according to the first embodiment of the lead storage battery of the present invention. FIG. 1 shows a state in which an upper lid 5 described later is mounted. FIG. 3 shows a state before the upper lid 5 described later is mounted, and FIG. 3 shows the upper lid 5 described later. The lid 1 is formed in a rectangular shape in a plan view with a synthetic resin or the like, and is joined to an upper opening edge of a battery case (not shown) provided with a plurality of partitioned cell chambers. It is something to cover. The lead-acid battery provided with the lid 1 is particularly suitable when mounted on a vehicle such as a motorcycle or an automobile, but can also be used for other purposes. 1, 2, and 3, the long side direction of the lid 1 will be described as the left-right direction, and the short side direction orthogonal to the long side direction will be described as the front-rear direction.

図１及び図２に示すように、前記蓋体１は、一方の長辺側（前方側）に左右一対の端子２，３を長辺方向（左右方向）両端にそれぞれ位置するように備えさせた第１蓋部分１Ａと、この第１蓋部分１Ａの上面よりも高い上面を有し、かつ、第１蓋部分１Ａの他方の長辺側（後方側）の端部から蓋体の他方の長辺側端（後端）までの間に形成された第２蓋部分１Ｂとを備えている。図１及び図２において、左側の端子２が負極端子であり、右側の端子３が正極端子である。そして、図２に示すように、前記第２蓋部分１Ｂの上面に、下方に凹んだ凹部４が形成されている。   As shown in FIGS. 1 and 2, the lid body 1 is provided with a pair of left and right terminals 2 and 3 on one long side (front side) so as to be positioned at both ends of the long side (left and right), respectively. The first lid portion 1A has an upper surface higher than the upper surface of the first lid portion 1A, and the other long side (rear side) end of the first lid portion 1A And a second lid portion 1B formed between the long side end (rear end). 1 and 2, the left terminal 2 is a negative terminal, and the right terminal 3 is a positive terminal. And as shown in FIG. 2, the recessed part 4 dented below is formed in the upper surface of the said 2nd cover part 1B.

前記凹部４は、第２蓋部分１Ｂの上面のうちの第１蓋部分１Ａ側端から短辺方向（前後方向）で半分となる位置よりも少し後側に寄った位置までの広い範囲に渡って形成され、凹部４の後側から他方の長辺側（前後方向後端側）にはフラット面１Ｆが形成されている。   The concave portion 4 extends over a wide range from the upper end of the second lid portion 1B to the position slightly closer to the rear side than the half of the short side direction (front-rear direction) from the first lid portion 1A side end. A flat surface 1F is formed from the rear side of the recess 4 to the other long side (rear end in the front-rear direction).

また、前記凹部４は、底部を形成する底壁４Ａと、その底壁４Ａの外周縁から上方に立ち上げられた縦壁４Ｂとを有している。また、該凹部４の内側には、該底壁４Ａの、前記縦壁４Ｂよりも内側に位置する部分に、上方へ突出する環状の突出部４Ｃを備えている。この突出部４Ｃの上面は、縦壁４Ｂの高さよりも低くなっているが、必ずしもどの位置においても同一高さでなくてもよい。このようにするのは、図３に示した上蓋５の接合部５Ｃの下端と蓋体１の突出部４Ｃとを溶融させて一体化させる際に、上蓋５の外周縁５Ｇが図２に示した溝部４Ｍを覆うとともに、上蓋５の上面と蓋体１のフラット面１Ｆとがほぼ同じ平面上になるようにするためである。   Moreover, the said recessed part 4 has 4 A of bottom walls which form a bottom part, and the vertical wall 4B raised up from the outer periphery of the bottom wall 4A. Further, inside the concave portion 4, an annular projecting portion 4 </ b> C projecting upward is provided at a portion of the bottom wall 4 </ b> A located inside the vertical wall 4 </ b> B. Although the upper surface of this protrusion 4C is lower than the height of the vertical wall 4B, it does not necessarily have to be the same height at any position. This is because the outer peripheral edge 5G of the upper lid 5 is shown in FIG. 2 when the lower end of the joint portion 5C of the upper lid 5 shown in FIG. This is because the upper surface of the upper lid 5 and the flat surface 1F of the lid body 1 are on substantially the same plane.

また、図２に示すように、前記突出部４Ｃの内側の底壁４Ａに、前記複数（図では６個）のセル室からのガスをそれぞれ排気するための排気孔４Ｄ、４Ｄ１を備えている（詳細は後述するが、排気孔４Ｄ１は複数（図では５個）の排気孔４Ｄからのガスを集めて外部に導くためのものである）。なお、セル室は６個でなくてもよい。前記複数の排気孔４Ｄから排気されたガスは、上蓋５の接合部５Ｃの下端と蓋体１の突出部４Ｃとを溶融させて一体化させることで突出部４Ｃの内側に形成される空間に集められた後、排気孔４Ｄ１が設けられたセル内を経て、第２排気孔４Ｆを囲む突出部４Ｔと上蓋５の接合部５Ｔの下端とを溶融させて一体化させることで形成される案内経路８に移動し、外部に排出される。このため、前記底壁４Ａには、前記排気孔４Ｄ、４Ｄ１に向かうほど下方に位置する傾斜面に形成されており、排気孔４Ｄ、４Ｄ１から逸出してきた電解液を該当する排気孔４Ｄ、４Ｄ１側へ戻すことができる案内面として機能するようにし、さらに、突出部４Ｃの相対向位置から内側に延びて隣り合う各排気孔４Ｄの間に間隙を形成する延出部４Ｅ，４Ｅを備えて、排気孔４Ｄから排気されたガスのみが突起部４Ｃの内側に形成される空間内を自由に移動し、排気孔４Ｄ、４Ｄ１から逸出してきた電解液が隣接する他の排気孔側へ移動することを可及的に阻止することができるようにしている。なお、第２排気孔４Ｆから外部に排出される経路については、後述する。   In addition, as shown in FIG. 2, exhaust holes 4D and 4D1 are provided in the bottom wall 4A on the inner side of the protruding portion 4C for exhausting gases from the plurality (six in the figure) of the cell chambers, respectively. (As will be described in detail later, the exhaust holes 4D1 are for collecting gas from a plurality of (five in the figure) exhaust holes 4D and guiding them to the outside). Note that the number of cell chambers may not be six. The gas exhausted from the plurality of exhaust holes 4D melts and integrates the lower end of the joint portion 5C of the upper lid 5 and the projecting portion 4C of the lid 1 into a space formed inside the projecting portion 4C. After being collected, the guide formed by melting and integrating the projecting portion 4T surrounding the second exhaust hole 4F and the lower end of the joint portion 5T of the upper lid 5 through the cell provided with the exhaust hole 4D1. It moves to the route 8 and is discharged outside. For this reason, the bottom wall 4A is formed with an inclined surface that is positioned downward toward the exhaust holes 4D and 4D1, and the electrolyte that has escaped from the exhaust holes 4D and 4D1 is discharged to the corresponding exhaust holes 4D and 4D. 4D1 functions as a guide surface that can be returned to the 4D1 side, and further includes extending portions 4E and 4E that extend inward from the opposing positions of the projecting portion 4C to form a gap between the adjacent exhaust holes 4D. Thus, only the gas exhausted from the exhaust hole 4D freely moves in the space formed inside the protrusion 4C, and the electrolytic solution escaped from the exhaust holes 4D and 4D1 moves toward the other adjacent exhaust hole. The movement is prevented as much as possible. In addition, the path | route discharged | emitted from the 2nd exhaust hole 4F outside is mentioned later.

図２に示すように、前記凹部４には、電槽に収納された極板群から延びる、電力を取り出すための極柱（図示せず）が挿入されて溶接される左右一対の筒状のブッシング６，７が埋設され、前記ブッシング６と前記端子２、及び前記ブッシング７と前記端子３とは、蓋体１の第２蓋部分１Ｂから第１蓋部分１Ａに至る部分に埋設された導通部（図示せず）によって連結されている。   As shown in FIG. 2, a pair of left and right cylindrical tubes to be inserted and welded to the recess 4 are inserted pole poles (not shown) for extracting electric power, which extend from the electrode plate group housed in the battery case. Bushings 6 and 7 are embedded, and the bushing 6 and the terminal 2, and the bushing 7 and the terminal 3 are embedded in a portion extending from the second lid portion 1 </ b> B to the first lid portion 1 </ b> A of the lid body 1. It is connected by a portion (not shown).

前記蓋体１について詳述すれば、前記第２蓋部分１Ｂの端子側（前側）の一辺の長手方向２箇所からは、前記第２蓋部分１Ｂと同一高さの上面を有し、かつ、蓋体１の一辺側の端（前後方向前端）付近まで延出される一対の凸部１Ｃ，１Ｄが形成され、右側（端子３側）に位置する凸部１Ｄを左側（端子２側）に位置する凸部１Ｃより幅広（約２．５倍）にして、案内経路８が形成されるようにしている。そして、右側の凸部１Ｄは、左右方向に長い長方形の本体部Ｄ１と、この本体部Ｄ１の前端で左右中央位置に前側に突出する左右方向に長い長方形の前端部Ｄ２とを備え、本体部Ｄ１には、蓋体１の長辺方向と異なる方向（図では直交する方向）の２つの側壁面Ｄ１Ａ，Ｄ１Ｂを備え、一方（左側）の側壁面Ｄ１Ａに排気口４Ｋを形成している。従って、図２に「下」と示した側が下に、図２に「上」と示した側が上になるように鉛蓄電池を配置した状態、つまり蓋体１の長辺方向の側面が上面となるように鉛蓄電池を後方に倒した状態で配置した場合には、図２の矢印で示す方向、すなわち「上」から落下する塵などは凸部１Ｄの本体部Ｄ１と前端部Ｄ２の前面Ｄ２Ｃに当たるだけで、排気口４Ｋへ入り難くできる。   Specifically, the lid 1 has an upper surface having the same height as the second lid portion 1B from two longitudinal directions on one side of the terminal side (front side) of the second lid portion 1B, and A pair of convex portions 1C, 1D extending to the vicinity of one end (front end in the front-rear direction) of the lid 1 is formed, and the convex portion 1D located on the right side (terminal 3 side) is positioned on the left side (terminal 2 side). The guide path 8 is formed to be wider (about 2.5 times) than the convex portion 1C. The right convex portion 1D includes a rectangular main body portion D1 that is long in the left-right direction, and a front end portion D2 that is long in the left-right direction and projects to the front at the front left end of the main body portion D1. D1 includes two side wall surfaces D1A and D1B in a direction different from the long side direction of the lid 1 (a direction orthogonal to the drawing), and an exhaust port 4K is formed on one (left side) side wall surface D1A. Accordingly, the state in which the lead storage battery is arranged so that the side shown as “lower” in FIG. 2 is down and the side shown as “up” in FIG. 2 is up, that is, the side surface in the long side direction of the lid 1 is the upper surface. When the lead storage battery is disposed in a state where it is tilted backward, the dust falling from the direction indicated by the arrow in FIG. 2, that is, from “above” is the main body D1 of the convex portion 1D and the front surface D2C of the front end D2. Just hitting the can make it difficult to enter the exhaust 4K.

次に、第２排気孔４Ｆから外部に排出される経路について説明する。図２に示したように、前記第２排気孔４Ｆは、左から４番目の排気孔４Ｄ１を設けた底壁４Ａに設け、この排気孔４Ｄ１を設けたセル室（特定のセル室）に、他のセル室からのガスを当該排気孔４Ｄ１を介して集め、集めたガスを第２排気孔４Ｆから外部まで案内する案内経路８が前記溝部４Ｍを迂回させて形成されている。すなわち、前記案内経路８は、図３に示した上蓋５の下面に下方に突出しかつ環状に形成した接合部５Ｔとこれに合致するように前記底壁４Ａから突出させた図２に示した突出部４Ｔとが接合されることで形成される第１案内経路９（図４（ａ）参照）と、該第１案内経路９の一端から前記排気口４Ｋまでの間の前記溝部４Ｍを形成する突出部４Ｔ、底壁４Ａ及び縦壁４Ｂを一部利用して形成されるトンネル状の第２案内経路１０とから構成されている。なお、特定のセル室は上記した場所でなくてもよい。   Next, the path | route discharged | emitted from the 2nd exhaust hole 4F outside is demonstrated. As shown in FIG. 2, the second exhaust hole 4F is provided in the bottom wall 4A provided with the fourth exhaust hole 4D1 from the left, and in the cell chamber (specific cell chamber) provided with the exhaust hole 4D1, A guide path 8 for collecting gas from other cell chambers through the exhaust hole 4D1 and guiding the collected gas from the second exhaust hole 4F to the outside is formed around the groove 4M. That is, the guide path 8 protrudes downward from the bottom surface of the upper lid 5 shown in FIG. 3 and a joint portion 5T formed in an annular shape and the protrusion shown in FIG. The first guide path 9 (see FIG. 4A) formed by joining the part 4T and the groove 4M between one end of the first guide path 9 and the exhaust port 4K are formed. A tunnel-shaped second guide path 10 is formed by partially using the protruding portion 4T, the bottom wall 4A, and the vertical wall 4B. Note that the specific cell chamber may not be the above-described place.

上記のように、上蓋５の接合部５Ｔを蓋体１の突出部４Ｔに溶着又は接着により接合することによって、排気孔４Ｄから排気されたガスを特定のセル室側へ集めるための空間が形成されるとともに、突出部４Ｔと縦壁４Ｂとの間に形成される環状の溝部４Ｍが上蓋５の外周縁５Ｇ（図３参照）によって覆われるようにできる。そして、第２排気孔４Ｆから排出されたガスを排気口４Ｋまで案内する案内経路８が、溝部４Ｍと隔離して形成することができて、溝部４Ｍと案内経路８とが繋がっていないことから、上蓋５を装着した状態で、上蓋５の外周縁５Ｇと縦壁４Ｂとの隙間にノズルの先端を当接させて、ノズルからの加圧エアを溝部４Ｍにのみ加えることができる。これによって、案内経路８と溝部４Ｍを隔離する蓋体１の突出部４Ｔと、上蓋５の接合部５Ｔとの接合状態、及び底壁４Ａの環状の突出部４Ｔと上蓋５の接合部５Ｔとの接合状態の不良を加圧エアの圧力低下の有無で検出することができる。   As described above, by joining the joint 5T of the upper lid 5 to the protrusion 4T of the lid 1 by welding or adhesion, a space for collecting the gas exhausted from the exhaust hole 4D to the specific cell chamber side is formed. In addition, the annular groove 4M formed between the protrusion 4T and the vertical wall 4B can be covered with the outer peripheral edge 5G of the upper lid 5 (see FIG. 3). Since the guide path 8 for guiding the gas discharged from the second exhaust hole 4F to the exhaust port 4K can be formed separately from the groove 4M, the groove 4M and the guide path 8 are not connected. In a state where the upper lid 5 is mounted, the tip of the nozzle can be brought into contact with the gap between the outer peripheral edge 5G of the upper lid 5 and the vertical wall 4B, and pressurized air from the nozzle can be applied only to the groove 4M. As a result, the joining state of the protrusion 4T of the lid 1 that separates the guide path 8 and the groove 4M from the joint 5T of the upper lid 5, and the annular protrusion 4T of the bottom wall 4A and the joint 5T of the upper lid 5 The poor bonding state can be detected by the presence or absence of a pressure drop in the pressurized air.

前記案内経路８を詳述すれば、図４に示すように、第１案内経路９は、前記第２排気孔４Ｆからのガスを上方に移動させる上方案内部９Ａと、該上方案内部９Ａからのガスを水平方向に移動させる水平案内部９Ｂと、該水平案内部９Ｂからのガスを下方に移動させる下方案内部９Ｃとから形成され、該下方案内部９Ｃからのガスを前記第２案内経路１０に受け渡すようにしている。前記上方案内部９Ａは、第２排気孔４Ｆからのガスを上方の所定高さまで立ち上げる円筒状の第１上方案内部９ａと、この第１上方案内部９ａからのガスをさらに上方まで案内するべく、第１上方案内部９ａよりも大きな直径を有する円筒状の第２上方案内部９ｂとを備えている。また、前記水平案内部９Ｂは、蓋体１の左右幅方向一方側（図２では右側）へガスを移動させる左右方向案内部９ｃと、左右方向案内部９ｃの案内方向終端に案内されたガスを蓋体１の厚み方向（前記左右幅方向と直交する前後方向）一方側（図２では下側）へ移動させる前後方向案内部９ｄとを備えている。前記第２案内経路１０は、蓋成型金型にロッド（孔形成用の棒）を挿入することによって、該縦壁４Ｂに前記排気口４Ｋを形成するとともに該側壁面Ｄ１Ａから前記下方案内部９Ｃの左側の壁９Ｈまでの間にトンネル状の貫通孔を形成して、構成されている。   Specifically, as shown in FIG. 4, the first guide path 9 includes an upper guide part 9A for moving the gas from the second exhaust hole 4F upward, and the upper guide part 9A. Is formed of a horizontal guide portion 9B for moving the gas in the horizontal direction and a lower guide portion 9C for moving the gas from the horizontal guide portion 9B downward, and the gas from the lower guide portion 9C is transferred to the second guide path. 10 is handed over. The upper guide portion 9A guides the gas from the second exhaust hole 4F up to a predetermined height above the cylindrical first upper guide portion 9a and the gas from the first upper guide portion 9a further upward. Accordingly, a cylindrical second upper guide portion 9b having a larger diameter than the first upper guide portion 9a is provided. The horizontal guide portion 9B includes a left-right direction guide portion 9c that moves gas to one side in the left-right width direction (right side in FIG. 2) of the lid 1, and a gas guided to the end of the left-right direction guide portion 9c in the guide direction. Is provided with a front-rear direction guide portion 9d that moves the lid 1 in the thickness direction (front-rear direction orthogonal to the left-right width direction) to one side (lower side in FIG. 2). The second guide path 10 is formed by inserting a rod (a hole forming rod) into a lid molding die to form the exhaust port 4K in the vertical wall 4B and from the side wall surface D1A to the lower guide portion 9C. A tunnel-like through hole is formed between the left wall 9H and the left wall 9H.

次に、図５、図６及び図７に、本発明の鉛蓄電池の第２の実施形態に係る蓋体１'の一例を示し、図５では、後述する上蓋５'を装着した状態を示し、図６では、後述する上蓋５'を装着する前の状態を示し、図６は後述する上蓋５'を示している。なお、前述した第１の実施形態に係る鉛蓄電池と共通する部分には同じ符号を付して説明は省略する。   Next, FIG. 5, FIG. 6 and FIG. 7 show an example of the lid 1 ′ according to the second embodiment of the lead storage battery of the present invention, and FIG. 5 shows a state in which an upper lid 5 ′ to be described later is mounted. 6 shows a state before mounting an upper lid 5 ′ described later, and FIG. 6 shows an upper lid 5 ′ described later. In addition, the same code | symbol is attached | subjected to the part which is common in the lead acid battery which concerns on 1st Embodiment mentioned above, and description is abbreviate | omitted.

この第２の実施形態に係る鉛蓄電池の特徴は、第２案内経路１０をトンネル状にしていないことである。すなわち、上蓋５' の下面に下方に突出しかつ環状に形成した接合部５Ｔとこれに合致するように前記底壁４Ａから突出させた図６に示した突出部４Ｔとが接合されることで形成される第１案内経路９の一端が前記排気口４Ｋに至るようにしている。   The feature of the lead storage battery according to the second embodiment is that the second guide path 10 is not made into a tunnel shape. That is, it is formed by joining the joint 5T projecting downward and annularly to the lower surface of the upper lid 5 'and the projecting part 4T shown in FIG. 6 projecting from the bottom wall 4A so as to match this. One end of the first guide path 9 is made to reach the exhaust port 4K.

前記案内経路８を詳述すれば、図８に示すように、第１案内経路９は、前記第２排気孔４Ｆからのガスを上方に移動させる上方案内部９Ａと、該上方案内部９Ａからのガスを水平方向に移動させる水平案内部９Ｂとから形成され、該水平案内部９Ｂからのガスが前記排気口４Ｋから外部に排出されるようにしている。前記上方案内部９Ａが、円筒状の第１上方案内部９ａと第２上方案内部９ｂとを備え、前記水平案内部９Ｂが、左右方向案内部９ｃと前後方向案内部９ｄとを備えている点は第１の実施形態に係る鉛蓄電池と共通している。この第２の実施形態に係る鉛蓄電池では、第１の実施形態に係る鉛蓄電池のように、上蓋５'を装着した状態で、上蓋５'の外周縁５Ｇと縦壁４Ｂとの隙間にノズルの先端を当接させて、ノズルからの加圧エアを溝部４Ｍに加えることはできないため、案内経路８と溝部４Ｍを隔離する蓋体１'の突出部４Ｔと、上蓋５'の接合部５Ｔとの接合状態、及び底壁４Ａの環状の突出部４Ｔと上蓋５'の接合部５Ｔとの接合状態の不良を検出することはできないが、排気口４Ｋから加圧エアを第１案内経路９に加えることで、接合部５Ｔと突出部４Ｔとの接合状態の不良の有無の検出はできる。   Specifically, as shown in FIG. 8, the first guide path 9 includes an upper guide part 9A for moving the gas from the second exhaust hole 4F upward, and the upper guide part 9A. And a horizontal guide portion 9B for moving the gas in the horizontal direction, and the gas from the horizontal guide portion 9B is discharged from the exhaust port 4K to the outside. The upper guide portion 9A includes a cylindrical first upper guide portion 9a and a second upper guide portion 9b, and the horizontal guide portion 9B includes a left-right direction guide portion 9c and a front-rear direction guide portion 9d. The point is common to the lead acid battery according to the first embodiment. In the lead storage battery according to the second embodiment, as in the lead storage battery according to the first embodiment, the nozzle is placed in the gap between the outer peripheral edge 5G of the upper cover 5 ′ and the vertical wall 4B in a state where the upper cover 5 ′ is mounted. Since the pressure air from the nozzle cannot be applied to the groove 4M by abutting the tip of the nozzle, the protrusion 4T of the lid 1 ′ that separates the guide path 8 and the groove 4M, and the joint 5T of the upper lid 5 ′ , And the joint state between the annular projecting portion 4T of the bottom wall 4A and the joint portion 5T of the upper lid 5 ′ cannot be detected, but pressurized air is supplied from the exhaust port 4K to the first guide path 9. By adding to the above, it is possible to detect the presence / absence of a defective bonding state between the bonding portion 5T and the protruding portion 4T.

前述した第１の実施形態及び第２の実施形態に係る鉛蓄電池は、いずれも排気口４Ｋの周囲には、図４及び図８に示すように、前記側壁面Ｄ１Ａから突出し、周方向で所定間隔を置いて配置される円弧状の３つの突起４Ｇ，４Ｈ，４Ｉが形成され、隣り合う突起４Ｇ，４Ｈ，４Ｉの間に３つの隙間（切欠き）４Ｌ，４Ｎ，４Ｐが形成され、これらの隙間（切欠き）４Ｌ，４Ｎ，４Ｐを通して排気口４Ｋからのガスを径方向からも排出可能となっている。なお、前記突起４Ｇ，４Ｈ，４Ｉのうち、図２及び図６に「上」と示した側に位置する突起４Ｇを半円弧状にし、他の突起４Ｈ，４Ｉを同一形状でほぼ同じ大きさの１／４円弧状にしているのは、蓋体１、１'の長辺方向の側面が上面となるように鉛蓄電池を後方に倒した傾倒状態で配置した状態では、図４及び図８の左下の拡大図（排気口４Ｋを正面から見た図）において、矢印方向（上方）から落下してくる塵などが突起４Ｇに当たることで、排気口４Ｋへの侵入を有効に阻止する庇部の作用をさせるためである。前記隙間４Ｌ，４Ｎ，４Ｐの数や幅については、自由に変更することができる。   The lead storage batteries according to the first embodiment and the second embodiment described above both protrude from the side wall surface D1A around the exhaust port 4K as shown in FIGS. 4 and 8, and are predetermined in the circumferential direction. Three arc-shaped projections 4G, 4H, 4I are formed at intervals, and three gaps (notches) 4L, 4N, 4P are formed between adjacent projections 4G, 4H, 4I. The gas from the exhaust port 4K can be discharged from the radial direction through the gaps (notches) 4L, 4N, 4P. Of the protrusions 4G, 4H, and 4I, the protrusion 4G located on the side indicated as “upper” in FIGS. 2 and 6 has a semicircular arc shape, and the other protrusions 4H and 4I have the same shape and substantially the same size. 4 and 8 in the state where the lead storage battery is placed in a tilted state so that the side surface in the long side direction of the lid 1, 1 'becomes the upper surface. In the lower left enlarged view (view of the exhaust port 4K viewed from the front), the dust that falls from the direction of the arrow (above) hits the projection 4G, thereby effectively preventing entry into the exhaust port 4K. This is for the purpose of The number and width of the gaps 4L, 4N, 4P can be freely changed.

また、図２及び図６にも示すように、前記排気口４Ｋを形成した凸部１Ｄの側壁面Ｄ１Ａを、蓋体１、１'の外周縁１Ｇよりも内方側に位置させてある。加えて、前端部Ｄ２の前面Ｄ２Ｃも外周縁１Ｇよりも内方側に位置させることによって、前端部Ｄ２の前面Ｄ２Ｃと外周縁１Ｇとの間にスペースＳを備えることができる。   Further, as shown in FIGS. 2 and 6, the side wall surface D1A of the convex portion 1D in which the exhaust port 4K is formed is positioned on the inner side of the outer peripheral edge 1G of the lids 1, 1 ′. In addition, a space S can be provided between the front surface D2C of the front end portion D2 and the outer peripheral edge 1G by positioning the front surface D2C of the front end portion D2 on the inner side of the outer peripheral edge 1G.

上記したスペースＳを備えることで、たとえば、図９（ｄ）に示すように、排気口４Ｋが形成された凸部１Ｄの前面を覆うとともに排気口４Ｋ側（左側）に延びて庇部１６を前記スペースＳに備えさせることができる。この庇部１６は、凸部１Ｄの前面を覆うとともに排気口４Ｋ側（左側）に延びる縦板部１６Ａと、凸部１Ｄの上端面から排気口４Ｋ側（左側）に延びる水平板部１６Ｂとを備えている。従って、蓋体１の上面が上方を向くように縦向きで車両に搭載する場合は、従来と同様に排気口４Ｋを備えた側壁面Ｄ１Ａが上方に向いていないため、排気口４Ｋに塵などが入り難くすることができながらも、水平板部１６Ｂが排気口４Ｋの上方を覆うとともに縦板部１６Ａが排気口４Ｋの前方をも覆っていることから、さらに排気口４Ｋに塵などが入り難くすることができる。また、蓋体１の長辺方向の側面が上面となるように鉛蓄電池を後方に倒した傾倒状態で配置した場合でも、排気口４Ｋを備えた側壁面Ｄ１Ａが上下方向と直交する方向に形成されていることから、排気口４Ｋへ塵などが入り難くできながらも、縦板部１６Ａが排気口４Ｋの上方を覆うとともに水平板部１６Ｂが排気口４Ｋの後方を覆っていることから、さらに排気口４Ｋに塵などが入り難くすることができる。図９（ｄ）では、庇部１６を縦板部１６Ａと水平板部１６Ｂとから構成しているが、縦板部１６Ａのみで構成することもできる。なお、縦板部１６Ａと水平板部１６Ｂを蓋１'の成形時に一体形成する他、別体形成された庇部を蓋１'に溶着又は接着などにより取り付けてもよい。   By providing the above-described space S, for example, as shown in FIG. 9D, the front surface of the convex portion 1D in which the exhaust port 4K is formed is covered and the flange portion 16 is extended to the exhaust port 4K side (left side). The space S can be provided. The flange portion 16 covers the front surface of the convex portion 1D and extends to the exhaust port 4K side (left side), and a horizontal plate portion 16B extends from the upper end surface of the convex portion 1D to the exhaust port 4K side (left side). It has. Accordingly, when the vehicle is mounted on the vehicle in a vertical orientation so that the upper surface of the lid 1 faces upward, the side wall surface D1A provided with the exhaust port 4K does not face upward as in the conventional case. Although the horizontal plate portion 16B covers the upper side of the exhaust port 4K and the vertical plate portion 16A also covers the front side of the exhaust port 4K, dust or the like further enters the exhaust port 4K. Can be difficult. Even when the lead-acid battery is placed in a tilted state so that the side surface in the long side direction of the lid body 1 is the upper surface, the side wall surface D1A provided with the exhaust port 4K is formed in a direction perpendicular to the vertical direction. Therefore, while it is difficult for dust or the like to enter the exhaust port 4K, the vertical plate portion 16A covers the upper portion of the exhaust port 4K and the horizontal plate portion 16B covers the rear of the exhaust port 4K. Dust and the like can be made difficult to enter the exhaust port 4K. In FIG. 9 (d), the flange portion 16 is composed of the vertical plate portion 16A and the horizontal plate portion 16B, but may be composed of only the vertical plate portion 16A. In addition, the vertical plate portion 16A and the horizontal plate portion 16B are integrally formed at the time of molding the lid 1 ′, and a separately formed collar portion may be attached to the lid 1 ′ by welding or adhesion.

前記上蓋５、５'は、合成樹脂で形成され、図３（ｂ）及び図７（ｂ）に示すように、前記突出部４Ｃに接合される該突出部４Ｃと略同一の外形状で略同一の大きさを有する接合部５Ｃと、該突出部４Ｃ及び前記縦壁４Ｂの間に形成される環状の溝部４Ｍを覆う外周縁５Ｇとを備え、前記上蓋５、５'の接合部５Ｃの下端と蓋体１、１'の突出部４Ｃの上端を溶融状態にした後、凹部４の突出部４Ｃと上蓋５、５'の接合部５Ｃとを合わせることによって、両者が溶融して一体化できるようになっている。前記第２排気孔４Ｆには、防爆、外部からのガスの逆流防止、及び内圧調整の目的で、多孔性フィルターや弁（図示せず）が備えられている。なお、前記接合部５Ｃには、前記突出部４Ｃの５箇所に備えた一対の延出部４Ｅ，４Ｅに対応する部分も備えており、これらも含めて接合部５Ｃとする。   The upper lids 5 and 5 'are made of synthetic resin, and have substantially the same outer shape as the protrusions 4C joined to the protrusions 4C, as shown in FIGS. 3B and 7B. A joint portion 5C having the same size, and an outer peripheral edge 5G covering an annular groove portion 4M formed between the projecting portion 4C and the vertical wall 4B, and the joint portion 5C of the upper lid 5, 5 ′. After the lower end and the upper end of the projecting portion 4C of the lid 1, 1 'are in a molten state, the projecting portion 4C of the recessed portion 4 and the joining portion 5C of the upper lid 5, 5' are combined to melt and integrate them. It can be done. The second exhaust hole 4F is provided with a porous filter and a valve (not shown) for the purpose of explosion-proof, prevention of backflow of gas from the outside, and adjustment of internal pressure. The joint portion 5C also includes portions corresponding to the pair of extending portions 4E and 4E provided at five locations of the projecting portion 4C, and these are also referred to as the joint portion 5C.

前記蓋体１、１'及び上蓋５、5'の材料としては、ポリプロピレン樹脂等の熱可塑性樹脂が好ましいが、他の合成樹脂であってもよい。なお、前記蓋体１、１'に上蓋５、５'を熱溶着する場合には、両者の材料は同一であることが好ましい。   The material of the lids 1, 1 'and the upper lids 5, 5' is preferably a thermoplastic resin such as polypropylene resin, but may be other synthetic resins. In addition, when the upper lids 5 and 5 'are heat-welded to the lids 1 and 1', it is preferable that both materials are the same.

前記実施形態では、複数のセル室を備えた電槽について説明したが、１つのセル室を備えた電槽であってもよい。   In the above-described embodiment, the battery case including a plurality of cell chambers has been described. However, a battery case including a single cell chamber may be used.

また、前記実施形態では、凸部１Ｄの側壁面Ｄ１Ａを蓋体１の長手方向と直交させたが、例えば図９（ａ），（ｂ），（ｃ），（ｅ）に示すように凸部１Ｄの側壁面Ｄ１Ａを蓋体１の長手方向と交差するように、すなわち蓋体１の長手方向と平行にならないように備えさせてもよい。   Moreover, in the said embodiment, although the side wall surface D1A of convex part 1D was orthogonally crossed with the longitudinal direction of the cover body 1, as shown, for example to FIG. 9 (a), (b), (c), (e) The side wall surface D <b> 1 </ b> A of the part 1 </ b> D may be provided so as to intersect the longitudinal direction of the lid body 1, i.e. not parallel to the longitudinal direction of the lid body 1.

図９（ａ）では、凸部１Ｄの側壁面Ｄ１Ａを蓋体１の外周縁１Ｇから離間する側（後方側）ほど外側に位置する傾斜面に構成している。そして、その傾斜した側壁面Ｄ１Ａに排気口４Ｋを形成している。   In FIG. 9A, the side wall surface D1A of the convex portion 1D is configured as an inclined surface located on the outer side toward the side (rear side) away from the outer peripheral edge 1G of the lid 1. And the exhaust port 4K is formed in the inclined side wall surface D1A.

また、図９（ｂ）では、第２蓋部分１Ｂの前端面１Ｚを第２蓋部分１Ｂの一端（右端）から他端（左端）に向かうほど後方に位置する傾斜面に構成し、その傾斜面に排気口４Ｋを形成している。   Further, in FIG. 9B, the front end surface 1Z of the second lid portion 1B is configured as an inclined surface that is positioned rearward from one end (right end) to the other end (left end) of the second lid portion 1B. An exhaust port 4K is formed on the surface.

また、図９（ｃ）では、第２蓋部分１Ｂの前端面の中央に、前方側ほど中心部に位置する左右の傾斜した側壁面Ｄ１Ａ，Ｄ１Ｂを有する台形状の凸部１Ｄを備えさせ、その左側の傾斜した側壁面Ｄ１Ａに排気口４Ｋを形成している。   Further, in FIG. 9C, a trapezoidal convex portion 1D having left and right inclined side wall surfaces D1A and D1B located in the center portion toward the front side is provided at the center of the front end surface of the second lid portion 1B. An exhaust port 4K is formed in the inclined side wall surface D1A on the left side.

また、図９（ｅ）では、２つの凸部１Ｃ，１Ｄそれぞれの向かい合う側壁面Ｄ１Ａ，Ｃ１Ａを上端から下方に向かうほど外側に位置する傾斜面に構成し、一方（右側）の傾斜面Ｄ１Ａに排気口４Ｋを形成している。   In FIG. 9 (e), the opposing side wall surfaces D1A, C1A of the two convex portions 1C, 1D are configured as inclined surfaces that are located outward from the upper end toward the lower side, and one (right) inclined surface D1A is formed. An exhaust port 4K is formed.

また、前記実施形態では、排気口４Ｋを端子２，３が設置される側（前方側）に備えさせたが、図９（ｆ），（ｇ）に示すように、端子２，３が設置される側（前方側）とは反対側（後方側）に排気口４Ｋを備えさせてもよい。図９（ｆ）では、蓋体１の後方側に左右一対の凸部１Ｃ，１Ｄを備え、一方（右側）の凸部１Ｄの左（内方側）端面Ｄ１Ａに排気口４Ｋを備えている。また、図９（ｇ）では、蓋体１の後方側に左角部のみ切り欠かれた凸部１Ｄを備えさせ、凸部１Ｄの左の側壁面Ｄ１Ａに排気口４Ｋを備えている。これら左の側壁面Ｄ１Ａは、蓋体１の長辺方向と直交していてもよいし、交差する方向に形成されていてもよい。   In the above embodiment, the exhaust port 4K is provided on the side (front side) where the terminals 2 and 3 are installed. However, as shown in FIGS. 9 (f) and 9 (g), the terminals 2 and 3 are installed. An exhaust port 4K may be provided on the opposite side (front side) to the side to be provided (front side). In FIG. 9F, a pair of left and right convex portions 1C and 1D is provided on the rear side of the lid body 1, and an exhaust port 4K is provided on the left (inward side) end surface D1A of one (right side) convex portion 1D. . Further, in FIG. 9G, a convex portion 1D cut out only at the left corner is provided on the rear side of the lid 1, and an exhaust port 4K is provided on the left side wall surface D1A of the convex portion 1D. These left side wall surfaces D1A may be orthogonal to the long side direction of the lid body 1 or may be formed in the intersecting direction.

さらに、前記実施形態では、上蓋５、５'を長方形状のものから構成したが、正方形又は楕円形あるいは円形など、どのような形状であってもよい。   Furthermore, in the said embodiment, although the upper lids 5 and 5 'were comprised from the rectangular thing, what kind of shapes, such as a square, an ellipse, or a circle, may be sufficient.

また、図２及び図６ではガスを特定のセル室に集め、該セル室から第２排気孔４Ｆを介して外部に導く案内経路８を設けているが、各セルからのガスを特定のセル室を介さずに案内経路８に導く構造のものでは、第２排気孔４Ｆを省略することができる。   In FIGS. 2 and 6, the gas is collected in a specific cell chamber, and a guide path 8 is provided to guide the gas from the cell chamber to the outside through the second exhaust hole 4F. The second exhaust hole 4F can be omitted in a structure that leads to the guide path 8 without passing through the chamber.

また、前記実施形態の端子２，３には、樹脂巻き端子等、他の方式の端子を用いてもよい。   Moreover, you may use the terminal of other systems, such as a resin winding terminal, for the terminals 2 and 3 of the said embodiment.

１、１'…蓋体、１Ａ…第１蓋部分、１Ｂ…第２蓋部分、１Ｃ，１Ｄ…凸部、１Ｆ…フラット面、１Ｇ…外周縁、１Ｗ…側面、１Ｙ…上面、１Ｚ…前端面、２，３…端子、４…凹部、４Ａ…底壁、４Ｂ…縦壁、４Ｃ，４Ｔ…突出部、４Ｄ、４Ｄ１…排気孔、４Ｅ…延出部、４Ｆ…第２排気孔、４Ｇ，４Ｈ，４Ｉ…突起、４Ｋ…排気口、４Ｌ，４Ｎ，４Ｐ…隙間、４Ｍ…溝部、５、５'…上蓋、５Ｃ，５Ｔ…接合部、５Ｇ…外周縁、６，７…ブッシング、８，９…案内経路、９Ａ…上方案内部、９Ｂ…水平案内部、９Ｃ…下方案内部、９ａ…上方案内部、９ｂ…上方案内部、９ｃ…左右方向案内部、９ｄ…前後方向案内部、９Ｈ…壁、１０…案内経路、１６…庇部、１６Ａ…縦板部、１６Ｂ…水平板部、Ｄ１Ａ、Ｄ１Ｂ…側壁面、Ｄ１…本体部、Ｄ２…前端部、Ｄ２Ｃ…前面、Ｓ…スペース DESCRIPTION OF SYMBOLS 1, 1 '... Cover body, 1A ... 1st cover part, 1B ... 2nd cover part, 1C, 1D ... Convex part, 1F ... Flat surface, 1G ... Outer periphery, 1W ... Side surface, 1Y ... Upper surface, 1Z ... Front end Surface, 2, 3 ... Terminal, 4 ... Recess, 4A ... Bottom wall, 4B ... Vertical wall, 4C, 4T ... Projection, 4D, 4D1 ... Exhaust hole, 4E ... Extension part, 4F ... Second exhaust hole, 4G 4H, 4I ... protrusion, 4K ... exhaust port, 4L, 4N, 4P ... gap, 4M ... groove, 5, 5 '... upper cover, 5C, 5T ... joint, 5G ... outer periphery, 6,7 ... bushing, 8 , 9 ... Guide route, 9A ... Upper guide part, 9B ... Horizontal guide part, 9C ... Lower guide part, 9a ... Upper guide part, 9b ... Upper guide part, 9c ... Left / Right direction guide part, 9d ... Front / back direction guide part, 9H: Wall, 10: Guide route, 16: Gutter, 16A: Vertical plate, 16B: Horizontal plate, D1A, D1B ... Side wall surface, D1 ... Main body, 2 ... the front end, D2C ... front, S ... space

Claims (3)

少なくとも１つのセル室を備えた電槽と、周縁部が前記電槽の上部開口縁部に接合される長方形状の蓋体とを備えた鉛蓄電池であって、
前記蓋体には、長辺方向と交差する又は直交する方向に延びる一対の凸部が長辺方向に間隔をあけて対向配置され、一方の凸部の対向面である側壁面には、前記セル室からのガスを外部に排出するための排気口が形成され、
前記排気口を形成した凸部の側壁面が、前記蓋体の外周縁部よりも内方側に位置していることを特徴とする鉛蓄電池。 At least one conductive with the cell chamber tank, a lead-acid battery and a rectangular lid periphery Ru is joined to the upper opening edge of the battery container,
In the lid body, a pair of convex portions extending in a direction intersecting or orthogonal to the long side direction are arranged to face each other with a gap in the long side direction. An exhaust port for discharging the gas from the cell chamber to the outside is formed,
The lead-acid battery according to claim 1, wherein a side wall surface of the convex portion forming the exhaust port is located on an inner side than an outer peripheral edge portion of the lid. 前記蓋体の長辺方向両端のそれぞれに、端子を備え、該両端子間に前記一対の凸部が位置していることを特徴とする請求項１に記載の鉛蓄電池。 The lead storage battery according to claim 1 , wherein terminals are provided at both ends in the long side direction of the lid, and the pair of convex portions are positioned between the terminals . 前記側壁面に形成された排気口の周囲には、該側壁面から突出し、かつ、周方向で所定間隔を置いて配置される複数の突起が形成されていることを特徴とする請求項１又は２に記載の鉛蓄電池。 2. A plurality of protrusions that protrude from the side wall surface and are arranged at predetermined intervals in the circumferential direction are formed around the exhaust port formed in the side wall surface. 2. The lead acid battery according to 2.
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