JP5360535B2 - Lead acid battery - Google Patents

Lead acid battery Download PDF

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JP5360535B2
JP5360535B2 JP2008206414A JP2008206414A JP5360535B2 JP 5360535 B2 JP5360535 B2 JP 5360535B2 JP 2008206414 A JP2008206414 A JP 2008206414A JP 2008206414 A JP2008206414 A JP 2008206414A JP 5360535 B2 JP5360535 B2 JP 5360535B2
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exhaust hole
lid
gas
guide
bottom wall
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JP2010044878A (en
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信 大崎
英次 北條
恭秀 中山
匡史 塩田
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GS Yuasa International Ltd
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GS Yuasa International Ltd
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Priority to JP2008206414A priority Critical patent/JP5360535B2/en
Application filed by GS Yuasa International Ltd filed Critical GS Yuasa International Ltd
Priority to PCT/JP2009/063781 priority patent/WO2010016474A1/en
Priority to CA2733168A priority patent/CA2733168A1/en
Priority to KR1020107027881A priority patent/KR101552872B1/en
Priority to CN200980127404.4A priority patent/CN102089900B/en
Priority to AU2009278426A priority patent/AU2009278426B8/en
Priority to BRPI0912471-3A priority patent/BRPI0912471B1/en
Priority to EP09804957.0A priority patent/EP2320494B1/en
Priority to US13/057,886 priority patent/US8652669B2/en
Publication of JP2010044878A publication Critical patent/JP2010044878A/en
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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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  • Gas Exhaust Devices For Batteries (AREA)

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し、詳しくは複数に仕切られたセル室を備えた電槽と、該電槽の上部開口を覆う蓋体と、セル室ごとに対応して蓋体に形成された複数の排気孔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を形成するべく、前記蓋体の上端開口を閉じる上蓋とを備えた鉛蓄電池に関する。   The present invention relates to a lead-acid battery that is particularly suitable for mounting on a vehicle such as a motorcycle or an automobile, and more specifically, a battery case having a plurality of partitioned cell chambers, and a lid that covers an upper opening of the battery case. An upper lid that closes the upper end opening of the lid to form a space for collecting gas exhausted from a plurality of exhaust holes formed in the lid corresponding to each cell chamber to a specific cell chamber side. It is related with the lead acid battery provided.

上記鉛蓄電池は、複数に仕切られたセル室を備えた電槽と、該電槽の上部開口を覆う蓋体とを備え、該蓋体は上面に凹部が形成され、該凹部は、底部を形成する底壁とその底壁の外周縁から上方に立ち上げられた縦壁とを有し、前記縦壁よりも内側に位置する底壁に上方へ突出する環状の突出部を備えるとともに、該突出部の内側の底壁に前記複数のセル室からのガスをそれぞれ排気する排気孔を備え、該複数の排気孔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を形成するべく、前記蓋体の凹部を閉じる上蓋を備えて、構成されている。
そして、前記上蓋は、前記突出部に溶着により接合される接合部を備え、前記特定のセル室に集められたガスを外部に排出するべく、該特定のセル室に対応する前記底壁に形成された前記排気孔とは異なる第２排気孔を該底壁に備え、第２排気孔からのガスを外部へ排出するための排出口まで案内する排気経路を、第２排気孔周縁の仕切壁に上蓋を接合することにより形成し、前記排気経路をトンネル状に構成されたものが既に提案されている（例えば、特許文献１参照）。
特開２００２−３２４５３７号公報（図１参照） The lead storage battery includes a battery case including a plurality of cell chambers and a lid body that covers an upper opening of the battery case, the lid body having a concave portion formed on an upper surface, and the concave portion having a bottom portion. A bottom wall to be formed and a vertical wall raised upward from an outer peripheral edge of the bottom wall, provided with an annular projecting portion projecting upward on the bottom wall located inside the vertical wall, and In order to form a space for collecting the gas exhausted from the plurality of exhaust holes to a specific cell chamber side, provided with exhaust holes for exhausting the gases from the plurality of cell chambers on the bottom wall inside the protrusion And an upper lid for closing the concave portion of the lid.
The upper lid includes a joining portion joined by welding to the protruding portion, and is formed on the bottom wall corresponding to the specific cell chamber so as to discharge the gas collected in the specific cell chamber to the outside. A partition wall around the periphery of the second exhaust hole is provided with a second exhaust hole different from the exhaust hole formed in the bottom wall, and an exhaust path for guiding the gas from the second exhaust hole to the exhaust port to the outside. A structure in which an upper cover is joined to the exhaust path and the exhaust path is configured in a tunnel shape has already been proposed (see, for example, Patent Document 1).
JP 2002-324537 A (see FIG. 1)

上記特許文献１の構成の鉛蓄電池では、第２排気孔からのガスを排出口まで案内する排気経路がトンネル状に構成されてはいるものの、例えば、蓋体と上蓋との接合状態を確認するべく、排出口から加圧エアを注入した場合に、加圧エアが第２排気孔に装着された弁によってブロックされるため、蓋体の突出部と上蓋の接合部との接合状態に異常があっても、その確認ができない不都合があった。   In the lead storage battery having the configuration described in Patent Document 1, although the exhaust path for guiding the gas from the second exhaust hole to the discharge port is configured in a tunnel shape, for example, the joining state of the lid and the upper lid is confirmed. Therefore, when pressurized air is injected from the discharge port, the pressurized air is blocked by the valve attached to the second exhaust hole, so that there is an abnormality in the bonding state between the protruding portion of the lid and the bonding portion of the upper lid. Even if there was, there was an inconvenience that could not be confirmed.

本発明は前述の状況に鑑み、解決しようとするところは、蓋体と上蓋との接合状態を、第２排気孔周縁の突出部と上蓋の接合部との接合状態と蓋体の突出部と上蓋の接合部との接合状態の両方で確認することができる鉛蓄電池を提供するものである。   In view of the above-mentioned situation, the present invention intends to solve the bonding state between the lid and the upper lid, the bonding state between the protruding portion of the second exhaust hole periphery and the bonding portion of the upper lid, and the protruding portion of the lid. The lead storage battery which can be confirmed in both the joining state with the junction part of an upper cover is provided.

本発明の鉛蓄電池は、前述の課題解決のために、複数に仕切られたセル室を備えた電槽と、該電槽の上部開口を覆う蓋体とを備え、かつ前記蓋体の上面には、下方に凹んだ凹部が形成されるとともに該凹部を閉じる上蓋を備え、前記凹部は、底部を形成する底壁とその底壁の外周縁から上方に立ち上げられた縦壁とを有し、前記縦壁よりも内側に位置する底壁には、上方へ突出する環状の突出部を備え、該突出部の内側の底壁には、前記複数のセル室からのガスをそれぞれ排気する複数の排気孔を備え、該複数の排気孔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、前記突出部と前記上蓋に設けた接合部とを接合することで形成され、前記特定のセル室に集められたガスを外部に排出するべく、前記特定のセル室に対応する前記底壁に形成された前記排気孔とは異なる第２排気孔が、該底壁に更に形成され、前記突出部は、前記第２排気孔を迂回するように内側に入り込んだ内側部分を有し、前記第２排気孔を包囲する環状の第２排気孔用の突出部を更に備え、該第２排気孔用の突出部は、前記突出部の内側部分よりも外側に位置するように形成され、該第２排気孔用の突出部と前記上蓋に備える第２排気孔用の接合部とが接合されることで前記第２排気孔から排出されたガスを外部に導く案内経路が形成されるとともに、前記突出部と前記縦壁との間に形成される環状の溝部と、前記内側部分と前記第２排気孔用の突出部との間に形成される溝部とが、前記上蓋の外周縁で覆われ、前記案内経路が、前記溝部を迂回して形成され、その排出口が前記上蓋の外周縁で覆われた溝部の外側に位置していることを特徴としている。 In order to solve the above-described problem, the lead storage battery of the present invention includes a battery case provided with a plurality of partitioned cell chambers, and a lid that covers the upper opening of the battery case, and the upper surface of the lid body. Has a concave portion recessed downward and an upper lid for closing the concave portion, and the concave portion has a bottom wall forming the bottom portion and a vertical wall raised upward from the outer peripheral edge of the bottom wall. , more on the bottom wall positioned inside the said vertical wall is provided with a projecting portion of the annular projecting upward, inside the bottom wall of the projecting portion, for exhausting the gas from the plurality of cell chamber respectively of an exhaust hole, a space for collecting gas exhausted from the plurality of exhaust holes into a particular cell chamber side, is formed by bonding the bonding portion disposed on the upper cover and the protruding portion, before Before exhausting the gas collected in a specific cell chamber to the outside of the specific cell chamber The second exhaust hole that is different from the exhaust holes formed in the bottom wall, is further formed on the bottom wall, the projecting portion has an inner part that enters inside so as to bypass the second exhaust hole And an annular second exhaust hole projecting portion surrounding the second exhaust hole, wherein the second exhaust hole projecting portion is formed to be located outside the inner portion of the projecting portion. A guide path for guiding the gas discharged from the second exhaust hole to the outside is formed by joining the protrusion for the second exhaust hole and the joint for the second exhaust hole provided in the upper lid. And an annular groove formed between the protruding portion and the vertical wall, and a groove formed between the inner portion and the second exhaust hole protruding portion are outer peripheral edges of the upper lid. The guide path is formed around the groove, and the discharge port is formed at the outer periphery of the upper lid. It is characterized in that it is located outside the Broken groove.

また、案内経路が、第２排気孔を包囲する突出部の内側に形成される第１案内経路と、該第１案内経路の一部から前記溝部を形成する底壁の下方と縦壁を貫通してガスを外部に排出する前記排出口に至るトンネル状の第２案内経路とから構成したことを特徴とするものである。 Further, draft path has a first guide path formed on the inside of the protruding portion that surrounds the second exhaust hole, the lower longitudinal wall of the bottom wall forming the groove from a portion of the first guide path It is characterized by comprising a tunnel-shaped second guide route that reaches the discharge port through which gas is discharged to the outside.

さらに、前記第１案内経路が、前記第２排気孔からのガスを上方に移動させる上方案内部と、該上方案内部からのガスを水平方向に移動させる水平案内部と、該水平案内部からのガスを下方に移動させる下方案内部とを備え、該下方案内部からのガスを前記第２案内経路に受け渡すことを特徴とするものである。   Further, the first guide path includes an upper guide part for moving the gas from the second exhaust hole upward, a horizontal guide part for moving the gas from the upper guide part in the horizontal direction, and the horizontal guide part. And a lower guide part for moving the gas downward, and the gas from the lower guide part is delivered to the second guide path.

上記のように、上蓋の接合部を蓋体の突出部に溶着又は接着により接合することによって、複数の排気孔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、突出部と縦壁との間に形成される環状の溝部が上蓋の外周縁によって覆われる。そして、第２排気孔から排出されたガスを排出口まで案内する案内経路を、溝部と隔離して形成することによって、溝部と案内経路とが繋がっていないことから、上蓋を装着した状態で、上蓋の外周縁と縦壁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にのみ加えることができる。これによって、案内経路と溝部を隔離する蓋体の突出部と上蓋の接合部との接合状態と底壁の環状の突出部と上蓋の接合部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。
上記のように、少なくとも案内方向の異なる３つの案内部を備えさせることによって、排出口の高さ方向のレベルが上蓋の高さ方向のレベルより低くなり、排出口から排出されたガスが上蓋あるいは蓋体の周縁を伝って端子の近傍に達し難くできる。 As described above, by joining the joint portion of the upper lid to the protruding portion of the lid body by welding or adhesion, a space for collecting the gas exhausted from the plurality of exhaust holes to the specific cell chamber side is formed. The annular groove formed between the protrusion and the vertical wall is covered with the outer peripheral edge of the upper lid. And, by forming the guide path that guides the gas discharged from the second exhaust hole to the discharge port separately from the groove part, since the groove part and the guide path are not connected, The tip of the nozzle is brought into contact with the gap between the outer peripheral edge of the upper lid and the vertical wall, and pressurized air from the nozzle can be applied only to the groove. As a result, the pressure of the pressurized air is reduced due to the poor connection state between the protrusion of the lid body separating the guide path and the groove and the joint portion of the upper cover and the joint state between the annular protrusion of the bottom wall and the joint portion of the upper cover. It can be detected by the presence or absence of.
As described above, by providing at least three guide portions having different guide directions, the level in the height direction of the discharge port becomes lower than the level in the height direction of the upper lid, and the gas discharged from the discharge port is the upper lid or It is difficult to reach the vicinity of the terminal along the periphery of the lid.

図１及び図２に、本発明の鉛蓄電池の蓋体１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ている。この蓋体１は、合成樹脂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。尚、図１及び図２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方向を前後方向とする。   1 and 2 show a lid 1 of the lead storage battery of the present invention. FIG. 1 shows a state in which an upper lid 5 to be described later is mounted, and FIG. 2 shows a state before the upper lid 5 to be described later is mounted. ing. The lid 1 is formed of a synthetic resin in a rectangular shape in a plan view, and covers an upper opening of a battery case (not shown) provided with a plurality of partitioned cell chambers. 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 and 2, the long side direction of the lid 1 is the left-right direction, and the direction orthogonal to the long side direction is the front-rear direction.

図２に示すように、前記蓋体１は、一方の長辺側（前後方向前端側）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する第２蓋部分１Ｂとを備えている。そして、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。
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ている。また、他方の長辺側（前後方向後端側）に凹部４の無いフラット面１Ｆを備えさせることによって、そのフラット面１Ｆに型番などが記されたシールなどを貼るスペースとして利用することができるようにしている。このように、蓋体１の上面のフラット面１Ｆがシールを貼るスペースとして利用できることで、前記シールに種々のデータと照合するための参照符号を記載しておけば、上蓋５の装着前の工程におけるデータ、例えば注液時のデータを前記参照符号に基づいて照合することができる（従来は、特許文献１に基づいて説明すれば、このようなシールは上蓋１９の装着後、すなわち注液して上蓋１９の装着後に上蓋１９の表面に貼っていたため、シールにこのような参照符号を記載していても、前記参照符号に基づいて注液時のデータを照合することができなかった）。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。 As shown in FIG. 2, the lid 1 is provided with a pair of left and right terminals 2 and 3 on one long side (front end in the front-rear direction) so as to be located at both ends in the long side direction (left-right direction), respectively. A first lid portion 1A and a second lid portion 1B having an upper surface higher than the upper surface of the first lid portion 1A are provided. And the recessed part 4 dented below is formed in the upper surface of the said 2nd cover part 1B.
The concave portion 4 is formed over a wide range from the end on the first lid portion 1A side of the upper surface of the second lid portion 1B to a position slightly closer to the rear side than a position halved in the front-rear direction. . Moreover, by providing the flat surface 1F without the recessed part 4 on the other long side (front-rear direction rear end side), it can be used as a space for attaching a seal or the like with a model number or the like on the flat surface 1F. I am doing so. As described above, the flat surface 1F on the upper surface of the lid 1 can be used as a space for sticking a sticker, and if a reference symbol for checking various data is written on the sticker, a process before the upper lid 5 is attached. Data, for example, data at the time of liquid injection, can be collated based on the reference numerals (conventionally, if described based on Patent Document 1, such a seal is provided after the top lid 19 is mounted, that is, liquid injection is performed. Since the upper lid 19 was attached to the surface of the upper lid 19, even when such a reference symbol was written on the seal, the data at the time of injection could not be verified based on the reference symbol). In FIG. 2, the left terminal 2 is a negative terminal, and the right terminal 3 is a positive terminal.

該凹部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、後述するように、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。   The recess 4 has a bottom wall 4A that forms the bottom, and a vertical wall 4B that rises upward from the outer peripheral edge 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. As will be described later, the outer peripheral edge 5G of the upper lid 5 covers the groove 4M when the lower end of the joint portion 5C of the upper lid 5 and the projecting portion 4C of the lid body 1 are melted and integrated as described later. At the same time, the upper surface of the upper lid 5 and the flat surface 1F of the lid 1 are arranged on substantially the same plane.

また、図２及び図３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排気孔４Ｄを備えている。そして、図１、図２及び図７（ａ），（ｂ），（ｃ），（ｄ）に示すように、前記複数の排気孔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を形成するべく、前記突出部４Ｃの内側を閉じる上蓋５を備えている。前記突出部４Ｃは、図２の平面視においてほぼ長方形状に構成され、後述する第２排気孔４Ｆを迂回することができるように、その部分が内側に入り込んだ湾曲部（内側部分）を備えている。また、前記底壁４Ａは、前記排気孔４Ｄに向かうほど下方に位置する傾斜面に形成されており、各排気孔４Ｄから逸出してきた電解液を該当する各排気孔４Ｄ側へ戻すことができる案内面として機能するようにしている。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の間に位置する間隙を形成する延出部４Ｅ，４Ｅを備えており、排気孔４Ｄから排気されたガスのみが突出部４Ｃの内側を自由に移動し、排気孔４Ｄから逸出してきた電解液が隣り合う他の排気孔４Ｄ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。 As shown in FIGS. 2 and 3, the bottom wall 4A inside the protrusion 4C is provided with exhaust holes 4D for exhausting gases from the plurality (six in the figure) of the cell chambers. As shown in FIGS. 1, 2, and 7A, 7B, 7C, and 7D, the gas exhausted from the plurality of exhaust holes 4D is collected to a specific cell chamber side. In order to form this space, an upper lid 5 that closes the inside of the protruding portion 4C is provided. The projecting portion 4C has a substantially rectangular shape in plan view in FIG. 2, and includes a curved portion (inner portion) into which the projecting portion 4C enters to be able to bypass a second exhaust hole 4F described later. ing. Further, the bottom wall 4A is formed on an inclined surface positioned downward toward the exhaust hole 4D, and the electrolyte solution escaped from each exhaust hole 4D can be returned to the corresponding exhaust hole 4D side. It is designed to function as a possible guide surface. Furthermore, it is provided with extending portions 4E and 4E that extend inward from the opposing positions of the protruding portion 4C and form gaps located between the adjacent exhaust holes 4D, and only gas exhausted from the exhaust holes 4D is provided. The inside of the protrusion 4C is freely moved so that the electrolyte that has escaped from the exhaust hole 4D can be prevented from moving toward the other adjacent exhaust hole 4D as much as possible.

図２、図３及び図４（ｃ）に示すように、前記凹部４には、電槽から延びる、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が埋設されている。又、前記ブッシング６，７と該ブッシング６，７と水平方向で並置される前記端子２，３の下部側とが導通部（図示せず）によって連結されている。
前記端子２，３とブッシング６，７と導通部とを鉛又は鉛合金にて一体成型することにより端子部を構成し、導通部が蓋体１に埋設された状態になっている。 As shown in FIG. 2, FIG. 3 and FIG. 4C, a pair of left and right cylinders that are welded by inserting a pole column (not shown) for taking out electric power, extending from the battery case, into the recess 4. The bushings 6 and 7 are embedded. The bushings 6 and 7 and the bushings 6 and 7 and the lower side of the terminals 2 and 3 juxtaposed in the horizontal direction are connected by a conductive portion (not shown).
The terminals 2 and 3, the bushings 6 and 7, and the conductive portion are integrally formed of lead or a lead alloy to constitute a terminal portion, and the conductive portion is embedded in the lid 1.

前記上蓋５は、合成樹脂で形成され、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と同一の外形状で同一の大きさを有する接合部５Ｃ及び該突出部４Ｃと前記縦壁４Ｂとの間に形成される環状の溝部４Ｍを覆う外周縁５Ｇを備え、前記上蓋５の接合部５Ｃの下端を溶融状態にした後、凹部４の突出部４Ｃに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。尚、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 lid 5 is made of synthetic resin, and as shown in FIG. 7B, the joint 5C having the same outer shape and the same size as the projection 4C joined to the projection 4C, and the An outer peripheral edge 5G that covers an annular groove 4M formed between the protrusion 4C and the vertical wall 4B is provided. After the lower end of the joint 5C of the upper lid 5 is in a molten state, the protrusion 4C of the recess 4 By combining, both can be melted and integrated. 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 5C is also provided with 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 5C.

前記蓋体１及び上蓋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。尚、前記蓋体１に上蓋５を熱溶着する場合には、両者の材料は同一の場合が好ましい。   The material of the lid 1 and the upper lid 5 is preferably a thermoplastic resin such as polypropylene resin, but may be other synthetic resins. When the upper lid 5 is heat-welded to the lid body 1, it is preferable that both materials are the same.

前記底壁４Ａに形成された前記排気孔４Ｄとは異なる第２排気孔４Ｆを、図１の左から４番目の排気孔４Ｄを設けた底壁４Ａに備え、この排気孔４Ｄ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４Ｄを介して集め、該ガスを第２排気孔４Ｆから外部まで案内する案内経路が前記溝部４Ｍを迂回させて形成されている。なお、特定のセル室は上記した場所でなくてもよい。すなわち、前記案内経路は、図７（ｂ）に示した、前記上蓋５の下面に下方に突出しかつ環状の接合部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５（ａ）、図６参照）と、該第１案内経路９の一端から前記排出口４Ｋまでの間の前記溝部４Ｍを形成する第２排気孔用の突出部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。 A second exhaust hole 4F different from the exhaust hole 4D formed in the bottom wall 4A is provided in the bottom wall 4A provided with the fourth exhaust hole 4D from the left in FIG. 1, and the cell provided with this exhaust hole 4D A guide path is formed in the chamber (specific cell chamber) to collect gas from other cell chambers through the exhaust hole 4D and guide the gas from the second exhaust hole 4F to the outside, bypassing the groove 4M. Has been. Note that the specific cell chamber may not be the above-described place. That is, the guide path is shown in FIG. 7B, which protrudes downward from the lower surface of the upper lid 5 and protrudes from the bottom wall 4A so as to match the annular joint 5T. The first guide path 9 (see FIGS. 5 (a) and 6) formed by joining the protruding portion 4T and the gap between one end of the first guide path 9 and the discharge port 4K. The second exhaust hole projecting portion 4T forming the groove portion 4M, the bottom wall 4A, and the tunnel-like second guide path 10 formed by partially using the vertical wall 4B.

図５（ａ），（ｂ），（ｃ）及び図６に示すように、前記第１案内経路９が、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からのガスを更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。 As shown in FIGS. 5 (a), (b), (c) and FIG. 6, the first guide path 9 includes an upper guide portion 9A for moving the gas from the second exhaust hole 4F upward, It is formed by a horizontal guide portion 9B that moves the gas from the upper guide portion 9A in the horizontal direction and a lower guide portion 9C that moves the gas from the horizontal guide portion 9B downward, and the gas from the lower guide portion 9C is The second guide route 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).

前記第２案内経路１０は、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に前記排出口４Ｋを形成するとともに該縦壁４Ｂから前記下方案内部９Ｃの前方側の壁９ｈまでの間にトンネル状の貫通孔１０Ａを形成して、構成されている。   The second guide path 10 has a discharge port 4K formed in the vertical wall 4B by inserting a rod (a hole-forming rod) into the mold, and forward of the lower guide portion 9C from the vertical wall 4B. A tunnel-like through hole 10A is formed between the side wall 9h and the side wall 9h.

図５（ｃ）に示すように、本発明の構成によれば、第２排気孔４Ｆから排出された電解液ミストやガスは、上方に移動させる上方案内部９Ａを通って弁と多孔性フィルターを通過し、水平方向に移動させる水平案内部９Ｂへ移動し、さらに下方に移動させる下方案内部９Ｃを通って第２案内経路１０に受け渡された後、排出口４Ｋを通して外部へ排出されることになる。
しかしながら、前記のように案内方向の異なる３つの案内部９Ａ，９Ｂ，９Ｃを備えていることから、排出口４Ｋの高さ方向のレベルが上蓋５の高さ方向のレベルより低くなり、さらに第２案内経路１０を経て排出口４Ｋに至っていることから、排出口４Ｋから排出されたガスが上蓋５あるいは蓋体１の周縁を伝って端子２，３の近傍に達し難くできる利点がある。 As shown in FIG. 5C, according to the configuration of the present invention, the electrolyte mist and gas discharged from the second exhaust hole 4F pass through the upper guide portion 9A that moves upward, and the valve and the porous filter. Is moved to the horizontal guide portion 9B that moves in the horizontal direction, is further transferred to the second guide path 10 through the lower guide portion 9C that is moved downward, and is then discharged to the outside through the discharge port 4K. It will be.
However, since the three guide portions 9A, 9B, and 9C having different guide directions are provided as described above, the level in the height direction of the discharge port 4K is lower than the level in the height direction of the upper lid 5, and Since the gas reaches the discharge port 4K via the two guide paths 10, there is an advantage that the gas discharged from the discharge port 4K can hardly reach the vicinity of the terminals 2 and 3 along the periphery of the upper lid 5 or the lid body 1.

前述したように、第２排気孔４Ｆから排出されたガスを排出口４Ｋまで案内する案内経路８を、溝部４Ｍの下側を迂回させて形成することによって、排出口４Ｋの高さ方向のレベルをガスが上蓋５の周縁を伝って端子２，３の近傍に達し難くできることに加えて、溝部４Ｍと案内経路８とが繋がることがなく、しかも排出口４Ｋは案内経路８にのみ繋げることができる。
従って、上蓋５を装着した状態で、図１に示す、縦壁４Ｂの内側面４ｂと上蓋５の外周面５Ｎとの間を密閉下にして溝部４Ｍ内に加圧エアを加えることによって、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、及び前記空間と溝部４Ｍを隔離する蓋体１の突出部４Ｃと上蓋５の接合部５Ｃ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 forming the guide path 8 that guides the gas discharged from the second exhaust hole 4F to the discharge port 4K, bypassing the lower side of the groove 4M, the height level of the discharge port 4K is increased. In addition to the fact that the gas can hardly reach the vicinity of the terminals 2 and 3 along the periphery of the upper lid 5, the groove 4M and the guide path 8 are not connected, and the discharge port 4K can be connected only to the guide path 8. it can.
Accordingly, with the upper lid 5 attached, the guide is provided by applying pressurized air into the groove 4M with the space between the inner surface 4b of the vertical wall 4B and the outer peripheral surface 5N of the upper lid 5 shown in FIG. The joint state of the projection 4T of the lid 1 that separates the path 8 and the groove 4M and the joint 5T of the upper lid 5, and the joint 5C of the projection 4C and the upper lid 5 of the lid 1 that isolates the space and the groove 4M. , The presence or absence of a pressure drop in the pressurized air can be detected.

図６に示すように、前記排出口４Ｋには、蓋体１を構成する縦壁４Ｂの表面から突出する環状でドーナツ状の突起４Ｇと、その突起４Ｇの周方向の一部に突起４Ｇから排出されるガスを突起４Ｇの径方向から排出可能となる３つの切欠き４Ｌ，４Ｎ，４Ｐとを備えている。前記３つの切欠きは、前記排出口４Ｋの中心を通り蓋体１の左右方向両側に形成された左右の切欠き４Ｌ，４Ｐと、排出口４Ｋの中心を通り蓋体１の下端側に延びるように形成された下方の切欠き４Ｎとからなっている。従って、塵が溜まり難いように上方へ延びる切欠きを省略しながらも、突起４Ｇの表面に異物が接している状態においても、３つの切欠き４Ｌ，４Ｎ，４Ｐを通してガスの排出を行うことができるようになっている。尚、前記切欠き４Ｌ，４Ｎ，４Ｐの数や幅の大きさなどは、自由に変更することができる。なお、前記突起４Ｇを設けずに縦壁４Ｂの表面を凹ませて切欠きを設けてもよい。   As shown in FIG. 6, the discharge port 4 </ b> K includes an annular donut-shaped protrusion 4 </ b> G protruding from the surface of the vertical wall 4 </ b> B constituting the lid body 1, and a protrusion 4 </ b> G on a part of the protrusion 4 </ b> G in the circumferential direction. Three cutouts 4L, 4N, and 4P are provided that allow the discharged gas to be discharged from the radial direction of the protrusion 4G. The three cutouts extend through the center of the discharge port 4K to the left and right cutouts 4L and 4P formed on both sides in the left-right direction of the lid 1, and extend to the lower end side of the lid 1 through the center of the discharge port 4K. The lower notch 4N is formed as described above. Accordingly, the gas is discharged through the three notches 4L, 4N, and 4P even in the state where the foreign matter is in contact with the surface of the protrusion 4G while omitting the notch extending upward so that dust does not easily collect. It can be done. The number of notches 4L, 4N, and 4P, the size of the width, and the like can be freely changed. In addition, you may provide the notch by denting the surface of the vertical wall 4B, without providing the said protrusion 4G.

前記蓋体１及び前記上蓋５の両者の装着時の位置決めを行うべく、蓋体１及び上蓋５の一方に被係止部を備え、かつ、他方に該被係止部に係止する係止部を備えている。
図７（ａ）〜（ｄ）に示すように、前記係止部が、前記上蓋５の下面に下方に突出させ、断面形状円形で内部中空の円筒形状（内部が中実の棒状体でもよい）を有する左右一対の筒体５Ｄ，５Ｅからなっている。
また、図２に示すように、前記被係止部が左右一対の孔１１，１２からなり、前記左右一対の孔１１，１２のうちの一方の孔１１をその孔１１に係止する係止部５Ｄの水平方向への移動を阻止する大きさに形成し、かつ、他方の孔１２を一対の孔１１，１２の対向方向に長い長孔、つまり長円形に形成している。
従って、前述のように上蓋５の接合部５Ｃ，５Ｔを溶融して蓋体１の突出部４Ｃ，４Ｔに合わせて一体化させる前に、一対の孔１１，１２に対して一対の係止部５Ｄ，５Ｅが係止して、蓋体１の突出部４Ｃ，４Ｔと上蓋５の接合部５Ｃ，５Ｔとの位置決めが完了し、その状態から蓋体１と上蓋５とを接近移動させることにより、蓋体１の突出部４Ｃ，４Ｔと上蓋の接合部５Ｃ，５Ｔとを確実に接合させることができるようになっている。そして、一方の孔１２を長孔に形成することによって、蓋体１と上蓋５とが成型後の収縮率の違いや成型後の温度変化、経時変化等によって位置決めが困難な場合であっても、上蓋５が室温に応じて長手方向に伸縮した場合でも、それを長孔が良好に吸収して係合がスムーズに行われるようになっている。 In order to perform positioning when both the lid 1 and the upper lid 5 are mounted, one of the lid 1 and the upper lid 5 is provided with a locked portion, and the other is locked to be locked to the locked portion. Department.
As shown in FIGS. 7A to 7D, the locking portion protrudes downward from the lower surface of the upper lid 5 and has a circular cross-section and a hollow cylindrical shape (the inside may be a solid rod-like body). ) Having a pair of left and right cylinders 5D and 5E.
Further, as shown in FIG. 2, the locked portion includes a pair of left and right holes 11, 12, and one of the pair of left and right holes 11, 12 is locked to the hole 11. The portion 5D is formed in a size that prevents the horizontal movement of the portion 5D, and the other hole 12 is formed in a long hole in the direction opposite to the pair of holes 11, 12, that is, an oval shape.
Therefore, as described above, before the joint portions 5C and 5T of the upper lid 5 are melted and integrated with the protrusions 4C and 4T of the lid body 1, a pair of locking portions with respect to the pair of holes 11 and 12 is provided. By positioning 5D and 5E, the positioning of the protrusions 4C and 4T of the lid 1 and the joints 5C and 5T of the upper lid 5 is completed, and the lid 1 and the upper lid 5 are moved closer to each other from that state. The projecting portions 4C and 4T of the lid 1 and the joint portions 5C and 5T of the upper lid can be reliably joined. Even if it is difficult to position the lid body 1 and the upper lid 5 due to a difference in shrinkage after molding, a temperature change after molding, a change with time, etc. by forming one hole 12 as a long hole. Even when the upper lid 5 expands and contracts in the longitudinal direction according to the room temperature, the long hole absorbs it well, and the engagement is performed smoothly.

また、図４(ａ)〜(ｄ)に示すように、前記端子２，３は、長方形状の天板部２Ａ，３Ａと、この天板部２Ａ，３Ａの４辺のうちの正面視において右側となる辺以外の３辺から下方へ垂下している前板部２Ｂ，３Ｂと、後板部２Ｃ，３Ｃと、左板部２Ｄ，３Ｄとを備え、天板部２Ａ，３Ａ及び前板部２Ｂ，３Ｂには、ボルト（図示せず）を貫通させるための貫通孔２ａ，２ｂ及び３ａ，３ｂが形成されており、それら貫通孔２ａ，２ｂ及び３ａ，３ｂに貫通させたボルト（図示せず）の先端を端子の内部に入れ込んだナット（図示せず）に螺合させて、ナットを端子にボルトによって固定することができるようになっている。そして、これらボルトとナットの間に、図示していない外部リード線（車載している電装品等に接続可能な線）等を挟み込んで固定するようにしている。   Further, as shown in FIGS. 4A to 4D, the terminals 2 and 3 are in the rectangular top plate portions 2A and 3A and in the front view of the four sides of the top plate portions 2A and 3A. Front plate portions 2B, 3B hanging downward from three sides other than the right side, rear plate portions 2C, 3C, left plate portions 2D, 3D, top plate portions 2A, 3A and front plate The parts 2B and 3B are formed with through holes 2a, 2b and 3a, 3b for penetrating bolts (not shown), and the bolts (FIG. 2) penetrated through the through holes 2a, 2b and 3a, 3b. A nut (not shown) is screwed into a nut (not shown) inserted into the terminal so that the nut can be fixed to the terminal with a bolt. Then, an external lead wire (wire that can be connected to an on-vehicle electrical component or the like) that is not illustrated is sandwiched and fixed between these bolts and nuts.

前記実施形態では、上蓋５の接合部５Ｃ，５Ｔを溶融して蓋体１の突出部４Ｃ，４Ｔに合わせて一体化させるようにしたが、上蓋５の接合部５Ｃ，５Ｔと蓋体１の突出部４Ｃ，４Ｔとを接着剤によって一体化させる構成であってもよい。   In the embodiment, the joint portions 5C and 5T of the upper lid 5 are melted and integrated in accordance with the protrusions 4C and 4T of the lid body 1. However, the joint portions 5C and 5T of the upper lid 5 and the lid body 1 The protrusions 4C and 4T may be integrated with an adhesive.

図２で示した第２排気孔４Ｆの位置を前後方向後方側へずらせることによって、水平案内部９Ｂのうち左右方向案内部９ｃを省略し、第２排気孔４Ｆに対して前後方向に沿う前後方向案内部９ｄのみから構成することもできる。この具体的構成を図８（ａ），（ｂ）に示している。
図８（ａ）では、蓋体１の上面に下方に凹んだ凹部４を形成し、その凹部４が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とを備え、前記底壁４Ａに前記６個の排気孔４Ｄと前記第２排気孔４Ｆとを形成している。そして、前記第２排気孔４Ｆを円弧状の壁部４Ｈにより包囲するとともにこの壁部４Ｈの両端からそれぞれ前方に突出して前記縦壁４Ｂに連なる突出部４Ｉをさらに形成し、該一対の直線状の突出部４Ｉ，４Ｉの内側に前記案内経路を形成している。この案内経路は、前記壁部４Ｈ及び突出部４Ｉ，４Ｉとこれに合致するように上蓋５の下面に備えた環状の接合部５Ｔ（図８（ｂ）参照）とが接合されることで形成され、第２排気孔４Ｆから上方に移動させる上方案内部とこの上方案内部の上端から前方へ移動させる水平案内部の２つの案内部から構成されている。また、前記縦壁４Ｂよりも内側の底壁４Ａに上方に突出して環状の突出部４Ｃを形成し、該突出部４Ｃと前記縦壁４Ｂとの間に溝部４Ｍを形成している。この突出部４Ｃは、前記上蓋５の下面に備えられた、前記接合部５Ｔとは異なる接合部５Ｃに接合することによって、突出部４Ｃの内側を密閉し、前記溝部４Ｍを上蓋５の外周縁５Ｇで覆っている。尚、図８（ａ）に示す４Ｅは、前記突出部４Ｃの相対向位置から内側に延びて隣り合う排気孔４Ｄ，４Ｄ間に位置する間隙を形成するための延出部４Ｅ，４Ｅである。これら延出部４Ｅ，４Ｅに対応する延出部を前記上蓋５に備えている。 By shifting the position of the second exhaust hole 4F shown in FIG. 2 to the rear side in the front-rear direction, the left-right direction guide part 9c of the horizontal guide part 9B is omitted, and along the front-rear direction with respect to the second exhaust hole 4F. It can also consist only of the front-back direction guide part 9d. This specific configuration is shown in FIGS. 8A and 8B.
In FIG. 8 (a), a concave portion 4 that is recessed downward is formed on the upper surface of the lid 1, and the concave portion 4 is raised upward from the bottom wall 4A that forms the bottom portion and the outer peripheral edge of the bottom wall 4A. A vertical wall 4B is provided, and the six exhaust holes 4D and the second exhaust holes 4F are formed in the bottom wall 4A. Then, the second exhaust hole 4F is surrounded by an arcuate wall 4H and projecting portions 4I projecting forward from both ends of the wall 4H and continuing to the vertical wall 4B are further formed, and the pair of linear shapes The guide path is formed inside the protrusions 4I, 4I. The guide path is formed by joining the wall portion 4H and the projecting portions 4I and 4I and an annular joint portion 5T (see FIG. 8B) provided on the lower surface of the upper lid 5 so as to match with the wall portion 4H and the projecting portions 4I and 4I. The upper guide portion is moved upward from the second exhaust hole 4F and the horizontal guide portion is moved forward from the upper end of the upper guide portion. Further, an annular protrusion 4C is formed by protruding upward on the bottom wall 4A inside the vertical wall 4B, and a groove 4M is formed between the protrusion 4C and the vertical wall 4B. The protruding portion 4C is bonded to a bonding portion 5C provided on the lower surface of the upper lid 5 and different from the bonding portion 5T, thereby sealing the inner side of the protruding portion 4C, and the groove portion 4M to the outer peripheral edge of the upper lid 5. Covered with 5G. In addition, 4E shown to Fig.8 (a) is the extension parts 4E and 4E for forming the gap | interval which extends inside from the mutually opposing position of the said protrusion part 4C, and is located between adjacent exhaust holes 4D and 4D. . The upper lid 5 is provided with extending portions corresponding to these extending portions 4E and 4E.

図８（ａ），（ｂ）に示したように、環状の突出部４Ｃと縦壁４Ｂ、壁部４Ｈ及び突出部４Ｉ，４Ｉとの間に溝部４Ｍを形成したことで、上蓋５を装着した状態で、縦壁４Ｂと上蓋５の隙間から溝部４Ｍ内に加圧エアを加えることによって、案内経路と溝部４Ｍを隔離する蓋体１の突出部４Ｉ，４Ｉ、壁部４Ｈと上蓋５の接合部５Ｔとの接合状態、及び前記空間と溝部４Ｍをそれぞれ隔離する蓋体１の突出部４Ｃと上蓋５の接合部５Ｃ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 shown in FIGS. 8A and 8B, the upper lid 5 is mounted by forming the groove 4M between the annular protrusion 4C and the vertical wall 4B, the wall 4H, and the protrusions 4I and 4I. In this state, by applying pressurized air into the groove 4M from the gap between the vertical wall 4B and the upper lid 5, the protrusions 4I and 4I of the lid body 1 separating the guide path and the groove 4M, the wall 4H and the upper lid 5 Defective joint state between the joint portion 5T and the joint state between the projecting portion 4C of the lid 1 and the joint portion 5C of the upper lid 5 that separates the space and the groove portion 4M from each other is detected by the presence or absence of a pressure drop of the pressurized air. be able to.

また、前記実施形態に対し、図２では、図５（ａ）、図６に示した如く、水平案内部９Ｂを、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とから構成したが、図８では、左右方向案内部９ｃを省略して前後方向案内部９ｄのみから構成したものである。このことから、このような案内部の有無や形状の相違は任意である。また、図２ではガスを特定のセル室に集め、該セル室から第２排気孔を介して外部に導く案内経路を設けているが、前記空間を案内経路として第２排気孔を省略してもよい。尚、図２では、ガスの排出口４Ｋが縦壁４Ｂの前方側の面から突出しているが、左右方向案内部９ｃのみから構成した場合には、縦壁４Ｂの前方側の面と面一にすることができる。この場合、金型に挿入するロッド（孔形成用の棒）が長くなって、排出口４Ｋの形成が困難になるが、端子側にガスが流れ難くできるようであれば、蓋体１の前端と同一面にしない方がよい。また、左右方向案内部９ｃを図２では右側へ移動させる構成としたが、左側へ移動させる構成であってもよい。 In contrast to the above embodiment, in FIG. 2, as shown in FIGS. 5A and 6, the gas is moved to the horizontal guide portion 9 </ b> B to one side in the left-right width direction (right side in FIG. 2). And a front-rear direction guide part 9d for moving the gas guided to the end of the left-right direction guide part 9c to the one end in the front-rear direction (lower side in FIG. 2). However, in FIG. 8, the left-right direction guide part 9c is abbreviate | omitted and it comprises only the front-back direction guide part 9d. For this reason, the presence or absence of such a guide part and the difference in shape are arbitrary. In FIG. 2, a guide path is provided for collecting gas in a specific cell chamber and leading the cell chamber to the outside through the second exhaust hole. However, the second exhaust hole is omitted with the space as a guide path. Also good. In FIG. 2, the gas discharge port 4K protrudes from the front surface of the vertical wall 4B. However, when the gas discharge port 4K is composed of only the left and right direction guide portion 9c, it is flush with the front surface of the vertical wall 4B. Can be. In this case, the rod (hole forming rod) to be inserted into the mold becomes long and it becomes difficult to form the discharge port 4K. However, if the gas can hardly flow to the terminal side, the front end of the lid 1 It is better not to be on the same plane. Moreover, although the left-right direction guide part 9c was set as the structure moved to the right side in FIG. 2, the structure moved to the left side may be sufficient.

また、前記実施形態では、複数のセル室を備えた電槽を示したが、１つのセル室を備えた電槽であってもよい。この場合、セル室から案内経路を通して外部に排出するための排気孔を該案内経路に連通する状態で備えさせることになる。   Moreover, in the said embodiment, although the battery case provided with the several cell chamber was shown, the battery case provided with one cell chamber may be sufficient. In this case, an exhaust hole for discharging from the cell chamber to the outside through the guide path is provided in a state communicating with the guide path.

上蓋を装着した蓋体の平面図である。It is a top view of the cover body equipped with the upper cover. 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 an upper cover. 蓋体の底面図である。It is a bottom view of a lid. （ａ）は蓋体の右側面図、（ｂ）は蓋体の正面図、（ｃ）は図２におけるＡ−Ａ線断面図、（ｄ）は図２におけるＡ−Ｂ線断面図である。(A) is a right side view of the lid, (b) is a front view of the lid, (c) is a cross-sectional view taken along line AA in FIG. 2, and (d) is a cross-sectional view taken along line AB in FIG. . （ａ）は第２排気孔の周辺を示す平面図、（ｂ）は第２排気孔の縦断面、（ｃ）は案内経路の概略を示す図である。(A) is a top view which shows the circumference | surroundings of a 2nd exhaust hole, (b) is a longitudinal cross-section of a 2nd exhaust hole, (c) is a figure which shows the outline of a guidance path | route. 第２排気孔の周辺を示す斜視図である。It is a perspective view which shows the periphery of a 2nd exhaust hole. 上蓋を示し、（ａ）はそれの平面図、（ｂ）はそれの底面図、（ｃ）はそれの正面図、（ｄ）は図７（ｂ）におけるＣ−Ｃ線断面図である。An upper lid is shown, (a) is a plan view thereof, (b) is a bottom view thereof, (c) is a front view thereof, and (d) is a sectional view taken along line CC in FIG. 7 (b). （ａ）は上蓋を装着した第２の蓋体を示す平面図、（ｂ）は（ａ）の蓋体の凹部を覆う上蓋の底面図である。(A) is a top view which shows the 2nd cover body equipped with the upper cover, (b) is a bottom view of the upper cover which covers the recessed part of the cover body of (a).

符号の説明Explanation of symbols

１…蓋体、１Ａ…第１蓋部分、１Ｂ…第２蓋部分、１Ｆ…フラット面、２，３…端子、２Ａ，３Ａ…天板部、２Ｂ，３Ｂ…前板部、２Ｃ…後板部、２Ｄ，３Ｄ…左板部、２ａ，２ｂ，３ａ，３ｂ…貫通孔、４…凹部、４Ａ…底壁、４Ｂ…縦壁、４Ｃ，４Ｔ…突出部、４Ｄ…排気孔、４Ｅ…延出部、４Ｆ…第２排気孔、４Ｇ…突起、４Ｋ…排出口、４Ｍ…溝部、４Ｔ…突出部、４Ｌ，４Ｎ，４Ｐ…切欠き、４ｂ…内側面、５…上蓋、５Ｃ，５Ｔ…接合部、５Ｄ，５Ｅ…係止部、５Ｇ…外周縁、６，７…ブッシング、８，９，１０…案内経路、９Ａ…上方案内部、９Ｂ…水平案内部、９Ｃ…下方案内部、９ａ…第１上方案内部、９ｂ…第２上方案内部、９ｃ…左右方向案内部、９ｄ…前後方向案内部、９ｈ…壁、１０Ａ…貫通孔、１１，１２…孔   DESCRIPTION OF SYMBOLS 1 ... Cover body, 1A ... 1st cover part, 1B ... 2nd cover part, 1F ... Flat surface, 2, 3 ... Terminal, 2A, 3A ... Top plate part, 2B, 3B ... Front plate part, 2C ... Rear plate Part, 2D, 3D ... left plate part, 2a, 2b, 3a, 3b ... through hole, 4 ... recess, 4A ... bottom wall, 4B ... vertical wall, 4C, 4T ... projecting part, 4D ... exhaust hole, 4E ... extension Outlet, 4F ... second exhaust hole, 4G ... protrusion, 4K ... discharge port, 4M ... groove, 4T ... projection, 4L, 4N, 4P ... notch, 4b ... inside surface, 5 ... top lid, 5C, 5T ... Joining part, 5D, 5E ... locking part, 5G ... outer periphery, 6, 7 ... bushing, 8, 9, 10 ... guide path, 9A ... upper guide part, 9B ... horizontal guide part, 9C ... lower guide part, 9a ... 1st upper guide part, 9b ... 2nd upper guide part, 9c ... Left-right direction guide part, 9d ... Front-back direction guide part, 9h ... Wall, 10A ... Through-hole, 11, 12 ... Hole

Claims (3)

複数に仕切られたセル室を備えた電槽と、該電槽の上部開口を覆う蓋体とを備え、かつ前記蓋体の上面には、下方に凹んだ凹部が形成されるとともに該凹部を閉じる上蓋を備え、前記凹部は、底部を形成する底壁とその底壁の外周縁から上方に立ち上げられた縦壁とを有し、前記縦壁よりも内側に位置する底壁には、上方へ突出する環状の突出部を備え、該突出部の内側の底壁には、前記複数のセル室からのガスをそれぞれ排気する複数の排気孔を備え、該複数の排気孔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、前記突出部と前記上蓋に設けた接合部とを接合することで形成され、前記特定のセル室に集められたガスを外部に排出するべく、前記特定のセル室に対応する前記底壁に形成された前記排気孔とは異なる第２排気孔が、該底壁に更に形成され、前記突出部は、前記第２排気孔を迂回するように内側に入り込んだ内側部分を有し、前記第２排気孔を包囲する環状の第２排気孔用の突出部を更に備え、該第２排気孔用の突出部は、前記突出部の内側部分よりも外側に位置するように形成され、該第２排気孔用の突出部と前記上蓋に備える第２排気孔用の接合部とが接合されることで前記第２排気孔から排出されたガスを外部に導く案内経路が形成されるとともに、前記突出部と前記縦壁との間に形成される環状の溝部と、前記内側部分と前記第２排気孔用の突出部との間に形成される溝部とが、前記上蓋の外周縁で覆われ、前記案内経路が、前記溝部を迂回して形成され、その排出口が前記上蓋の外周縁で覆われた溝部の外側に位置していることを特徴とする鉛蓄電池。 A battery case provided with a plurality of partitioned cell chambers; and a lid that covers the upper opening of the battery case; and a concave portion that is recessed downward is formed on the upper surface of the lid body. An upper lid is provided, and the recess has a bottom wall forming a bottom portion and a vertical wall raised upward from an outer peripheral edge of the bottom wall, and the bottom wall located on the inner side of the vertical wall includes: It includes a projecting portion of the annular projecting upward, inside the bottom wall of the projecting portion, provided with a plurality of exhaust holes for exhausting the gas from the plurality of cell chamber respectively, exhausted from the plurality of exhaust holes a space for collecting gas to a particular cell chamber side, is formed by bonding the bonding portion disposed on the upper cover and the protruding portion, for discharging the collected gas prior Symbol particular cell chamber to the outside Therefore, a second exhaust different from the exhaust hole formed in the bottom wall corresponding to the specific cell chamber. Holes are further formed on the bottom wall, the projecting portion, the second has an inner portion that enters inside so as to bypass the exhaust hole, the second exhaust hole of the annular surrounding said second exhaust hole A protrusion for the second exhaust hole, and the protrusion for the second exhaust hole is formed to be located outside the inner portion of the protrusion, and is provided in the protrusion for the second exhaust hole and the upper lid. A guide path for guiding the gas discharged from the second exhaust hole to the outside is formed by joining the joint part for the second exhaust hole, and is formed between the projecting part and the vertical wall. And a groove formed between the inner portion and the protrusion for the second exhaust hole is covered with an outer peripheral edge of the upper lid, and the guide path bypasses the groove. It is formed, and characterized in that the outlet is located outside of the groove which is covered by the outer peripheral edge of the upper cover Lead-acid batteries that. 前記案内経路が、第２排気孔を包囲する突出部の内側に形成される第１案内経路と、該第１案内経路の一部から前記溝部を形成する底壁の下方と縦壁を貫通してガスを外部に排出する前記排出口に至るトンネル状の第２案内経路とから構成したことを特徴とする請求項１記載の鉛蓄電池。 The guide path passes through a first guide path formed inside a projecting portion surrounding the second exhaust hole, and a bottom wall and a vertical wall that form the groove portion from a part of the first guide path. lead-acid battery according to claim 1, characterized by being configured of a tunnel-like second guide path to said discharge port for discharging the gas to the outside Te. 前記第１案内経路が、前記第２排気孔からのガスを上方に移動させる上方案内部と、該上方案内部からのガスを水平方向に移動させる水平案内部と、該水平案内部からのガスを下方に移動させる下方案内部とを備え、該下方案内部からのガスを前記第２案内経路に受け渡すことを特徴とする請求項２記載の鉛蓄電池。 The first guide path includes an upper guide portion that moves the gas from the second exhaust hole upward, a horizontal guide portion that moves the gas from the upper guide portion in the horizontal direction, and a gas from the horizontal guide portion. the a lower guide portion moving downwards, lead-acid battery of claim 2, wherein the gas from said lower guide section and wherein the pass in the second guide path.
JP2008206414A 2008-08-08 2008-08-08 Lead acid battery Active JP5360535B2 (en)

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EP09804957.0A EP2320494B1 (en) 2008-08-08 2009-08-04 Lead storage battery
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