JP5168975B2 - Storage battery - Google Patents

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JP5168975B2
JP5168975B2 JP2007084348A JP2007084348A JP5168975B2 JP 5168975 B2 JP5168975 B2 JP 5168975B2 JP 2007084348 A JP2007084348 A JP 2007084348A JP 2007084348 A JP2007084348 A JP 2007084348A JP 5168975 B2 JP5168975 B2 JP 5168975B2
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head
exhaust hole
liquid stopper
liquid
storage battery
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JP2008243681A (en
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長谷川　　隆
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GS Yuasa International Ltd
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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

Description

本発明は、蓄電池に関する。   The present invention relates to a storage battery.

鉛蓄電池においては、電解液が外部に漏れるのを防止するために電池容器の注液口に液栓が装着される。このような液栓は、一般的には、電池容器の注液口に装着された場合に外側に配される頭部と、頭部の下端に連なる筒状の本体部とからなる構造をなしている。   In a lead storage battery, a liquid stopper is attached to a liquid injection port of a battery container in order to prevent the electrolyte from leaking to the outside. Such a liquid stopper generally has a structure composed of a head portion arranged on the outside when mounted on a liquid injection port of a battery container and a cylindrical main body portion connected to a lower end of the head portion. ing.

ところで、鉛蓄電池（以下、電池ともいう）においては、充電時に水の電気分解が起こってガスが発生してしまうことがあるので、このガスを排出するために、一般的な鉛蓄電池用の液栓の頭部には、本体部の内側に連通する排気孔が形成されている。   By the way, in a lead storage battery (hereinafter also referred to as a battery), electrolysis of water may occur during charging, and gas may be generated. Therefore, in order to discharge this gas, a general liquid for a lead storage battery is used. An exhaust hole communicating with the inside of the main body is formed in the head of the stopper.

しかし、排気孔が形成されている頭部は、液栓が装着された場合に電池容器の外側に配されるため、液栓の頭部に雨水などがかかると排気孔を通じて雨水などが電池内に浸入することがある。   However, the head where the exhaust hole is formed is placed outside the battery container when the liquid stopper is attached. Therefore, when rainwater or the like is applied to the head of the liquid stopper, the rainwater or the like passes through the exhaust hole. May invade.

この問題を解決する液栓としては、下記特許文献１に記載のものが知られている。この液栓は、頭部の側面に排気孔を形成したものである。
特開平１０−２２８８９２号公報 As a liquid stopper for solving this problem, the one described in Patent Document 1 below is known. This liquid stopper has an exhaust hole formed on the side surface of the head.
Japanese Patent Laid-Open No. 10-228892

特許文献１に記載の液栓の排気孔は、頭部の側面に形成されているため、上方から降りこむ雨水などが排気孔内へ浸入することをある程度は防止することができる。しかし、この液栓の頭部の上面は、平らな形状をなしていることから、液栓の頭部にたまった雨水などが、振動などの影響によって、排気孔の形成されている側面を伝って流れ落ち、排気孔に浸入するおそれがある。   Since the exhaust hole of the liquid stopper described in Patent Document 1 is formed on the side surface of the head, it is possible to prevent rainwater or the like that falls from above from entering the exhaust hole to some extent. However, since the top surface of the head of the liquid tap has a flat shape, rainwater collected on the head of the liquid tap travels along the side where the exhaust hole is formed due to the influence of vibration and the like. May flow down and enter the exhaust hole.

本発明は上記のような事情に基づいて完成されたものであって、電池内に雨水が浸入することを防止できる蓄電池を提供することを目的とする。   This invention is completed based on the above situations, Comprising: It aims at providing the storage battery which can prevent that rainwater permeates in a battery.

上記の目的を達成するための手段として、本発明は、電池容器に形成された注液口に装着される液栓を備えた蓄電池であって、前記液栓は、前記注液口に装着された場合に、前記電池容器の上方に突出する頭部と、その頭部の下端に連なる筒状の本体部とを備え、前記頭部の周壁には前記本体部の内側に連通する排気孔が形成され、前記液栓の頭部の上面には、前記排気孔の上部分から、離れる方向に向かって下降傾斜する傾斜面が形成されていることを特徴とする蓄電池である。   As a means for achieving the above object, the present invention provides a storage battery including a liquid stopper attached to a liquid inlet formed in a battery container, wherein the liquid stopper is attached to the liquid inlet. A head portion protruding above the battery case and a cylindrical main body portion connected to the lower end of the head portion, and an exhaust hole communicating with the inside of the main body portion is formed in the peripheral wall of the head portion. The storage battery is characterized in that an inclined surface is formed on the upper surface of the head portion of the liquid stopper so as to descend downward from the upper portion of the exhaust hole in a direction away from the upper portion.

本発明によれば、液栓の頭部の上面には、排気孔の上部分から離れる方向に向かって下降傾斜する傾斜面が形成されているから、液栓の頭部に、かかった雨水などは、頭部上面の傾斜面を、排気孔の上部分から離れる方向に流れるので、液栓の頭部には雨水がたまりにくい。   According to the present invention, the top surface of the head portion of the liquid tap is formed with an inclined surface that is inclined downward toward the direction away from the upper portion of the exhaust hole. Since the inclined surface of the upper surface of the head flows in a direction away from the upper portion of the exhaust hole, rainwater is unlikely to collect in the head of the liquid stopper.

さらに、液栓の頭部にかかった雨水などは頭部上面の傾斜面を排気孔の上部分から離れる方向に向かって流れた後、周壁のうち排気孔の形成されていない部分を伝って下方へと流れ落ちるから、雨水などが周壁のうち排気孔の形成された部分を伝って流れ落ちることはない。
その結果、本発明によれば、雨水などの電池内への浸入を防止することができる。 Furthermore, after rainwater or the like on the head of the liquid faucet flows in the direction away from the upper part of the exhaust hole on the inclined surface of the upper surface of the head, it passes down the part of the peripheral wall where the exhaust hole is not formed. Therefore, rainwater or the like does not flow down the portion of the peripheral wall where the exhaust holes are formed.
As a result, according to the present invention, it is possible to prevent rainwater or the like from entering the battery.

＜実施形態１＞
本発明の実施形態１の蓄電池に使用される液栓１０を、図１ないし図４によって説明する。
液栓１０は、本実施形態の蓄電池の注液口（図示せず）に螺着されるものであり、図１に示すように、注液口に螺着された場合に電池容器の外側に配される頭部１１と、この頭部１１の下端に連なる円筒状の本体部２１とからなる。 <Embodiment 1>
The liquid stopper 10 used for the storage battery of Embodiment 1 of the present invention will be described with reference to FIGS.
The liquid stopper 10 is screwed into a liquid injection port (not shown) of the storage battery according to the present embodiment. As shown in FIG. 1, when the liquid stopper 10 is screwed into the liquid injection port, the liquid stopper 10 is placed outside the battery container. The head 11 is arranged, and a cylindrical main body 21 connected to the lower end of the head 11.

液栓１０の本体部２１の外壁面において、その上端部（頭部側）は、注液口からの電解液の漏れを防ぐリング状のパッキン（図示せず）が外嵌装着されるパッキン装着領域とされ、そのすぐ下側には、注液口に形成されているめねじ部に螺着可能な、ねじ部２２が形成されており、ねじ部２２の下側の領域にはスリット２３が形成されている。   On the outer wall surface of the main body portion 21 of the liquid stopper 10, the upper end portion (head side) is attached with a packing in which a ring-shaped packing (not shown) that prevents leakage of the electrolytic solution from the injection port is externally attached. Immediately below, a screw portion 22 that can be screwed to a female screw portion formed in the liquid injection port is formed, and a slit 23 is formed in a lower region of the screw portion 22. Is formed.

そして、本体部２１の内部には、振動による電解液の溢出を防止する防沫体が本体部２１の下端部から挿入されて取り付けられることができるようになっている。この防沫体は本体部２１の下端部に形成された２つの係止部２４に係合させることで下方に抜け落ちないように係止可能となっている。   A splash-proof body that prevents the electrolyte from overflowing due to vibration can be inserted and attached to the inside of the main body 21 from the lower end of the main body 21. The splash-proof body can be locked so as not to fall down by being engaged with two locking portions 24 formed at the lower end portion of the main body portion 21.

頭部１１は、上端を閉じた円筒容器状をなす蓋部１２と、その蓋部１２の下端部において外周側に張り出したフランジ部１３とを備える。蓋部１２の内部には硫酸イオンなどを吸収する円盤状のフィルター２５を挿入できるようになっている。このフィルター２５は排気孔１７（後述する）よりも下側に位置するように挿入される。フランジ部１３は、液栓１０を注液口に装着した際に注液口の口縁を覆う。   The head portion 11 includes a lid portion 12 having a cylindrical container shape with the upper end closed, and a flange portion 13 projecting outward from the lower end portion of the lid portion 12. A disc-shaped filter 25 that absorbs sulfate ions or the like can be inserted into the lid portion 12. The filter 25 is inserted so as to be positioned below the exhaust hole 17 (described later). The flange portion 13 covers the mouth of the liquid injection port when the liquid stopper 10 is attached to the liquid injection port.

蓋部１２の周壁１２Ａには、壁面から外周方向へ張り出す板状のつまみ部１６が例えば９０度の角度間隔で４枚形成されている。各つまみ部１６は、液栓１０の装着方向に沿うように上下に延びて形成され、その下端はフランジ部１３に連なり、その上端は蓋部１２の上壁１２Ｂに連なっている。   On the peripheral wall 12A of the lid portion 12, four plate-like knob portions 16 projecting outward from the wall surface are formed, for example, at an angular interval of 90 degrees. Each knob portion 16 is formed so as to extend vertically along the mounting direction of the liquid stopper 10, its lower end is connected to the flange portion 13, and its upper end is connected to the upper wall 12 </ b> B of the lid portion 12.

蓋部１２の周壁１２Ａのうち上壁１２Ｂに連なる上端部には、電池内部で発生したガスを外部へ排出するための排気孔１７が、液栓１０の中心軸に対して対称な位置に１つずつ（合計２つ）、頭部１１の内部まで貫通して形成されている。
各排気孔１７の下側であって、周壁の厚み方向に形成される面１７Ａは、雨水などの浸入を防ぐという観点から、頭部１１の内部側から外周方向に下降する下降傾斜面であることが好ましい。 An exhaust hole 17 for discharging the gas generated inside the battery to the outside is located at a position symmetrical to the central axis of the liquid stopper 10 at the upper end portion connected to the upper wall 12B of the peripheral wall 12A of the lid portion 12. Each (two in total) is formed so as to penetrate into the inside of the head 11.
A surface 17A formed below the exhaust holes 17 in the thickness direction of the peripheral wall is a descending inclined surface that descends from the inner side of the head 11 in the outer peripheral direction from the viewpoint of preventing intrusion of rainwater and the like. It is preferable.

頭部１１の上面、すなわち蓋部１２の上壁１２Ｂの上側の面は、各つまみ部１６を結んだ線によって扇状をなす４つの領域に区分可能である。それらの４つの領域のうち、各排気孔１７の上部を含む２つの領域は、排気孔１７の上部分から上壁１２Ａの中心（排気孔１７の上部から離れる方向）に向かって下降傾斜する傾斜面１８とされている。   The upper surface of the head 11, that is, the upper surface of the upper wall 12 </ b> B of the lid 12 can be divided into four areas that form a fan shape by lines connecting the knobs 16. Among these four regions, two regions including the upper part of each exhaust hole 17 are inclined to be inclined downward from the upper part of the exhaust hole 17 toward the center of the upper wall 12A (a direction away from the upper part of the exhaust hole 17). The surface 18 is used.

一方、残りの２つの領域、すなわち両傾斜面１８，１８の間に位置する２つの領域は、上壁１２Ａの中心から外周側に向かって下降傾斜する排水傾斜面１９とされ、傾斜面１８と排水傾斜面１９とは、排水傾斜面１９の方を低くした段差２０を介して連なっている。   On the other hand, the remaining two regions, that is, the two regions located between the two inclined surfaces 18 and 18 are drainage inclined surfaces 19 that are inclined downward from the center of the upper wall 12A toward the outer peripheral side. The drainage inclined surface 19 is connected to the drainage inclined surface 19 through a step 20 which is lower.

次に本実施形態の作用効果について説明する。
例えば、蓄電池が車両に取り付けられている状態で、降雨時に車両のボンネットを開放する等すると、蓄電池に雨水が降りかかり、液栓１０の上壁１２Ｂ上に付着することがある。この場合、上壁１２Ｂのうち排水傾斜面１９に付着した雨水は、その排水傾斜面１９が中心側が高く外周側が低くなる傾斜を有していることから、直ちにその傾斜に沿って液栓１０の周壁１２Ａを伝って下に流れ落ちる。各排水傾斜面１９の外周縁に連なる周壁１２Ａには排気孔１７は形成されていないから、周壁１２Ａを伝い落ちる雨水が液栓１０ひいては蓄電池内に侵入することはない。 Next, the effect of this embodiment is demonstrated.
For example, when the bonnet of the vehicle is opened in the rain when the storage battery is attached to the vehicle, rainwater may fall on the storage battery and adhere to the upper wall 12B of the liquid stopper 10. In this case, the rainwater adhering to the drainage inclined surface 19 of the upper wall 12B has an inclination in which the drainage inclined surface 19 is high at the center side and low at the outer peripheral side, so that the liquid plug 10 immediately follows the inclination. It flows down along the peripheral wall 12A. Since the exhaust hole 17 is not formed in the peripheral wall 12A connected to the outer peripheral edge of each drainage inclined surface 19, the rainwater flowing down the peripheral wall 12A does not enter the liquid plug 10 and the storage battery.

一方、上壁１２Ｂのうち傾斜面１８に雨水が付着した場合には、その傾斜面１８が外周側が高く中心側が低くなる傾斜を有していることから、雨水はその傾斜に沿って上壁１２Ｂの中心（すなわち排水孔１７が形成されている外周側から離れる方向）に向かって流れた後、段差２０を流れ落ちる。そして、次に傾斜面１８よりも低く形成された排水傾斜面１９を中心側から外周側に向かって流れ、その後、排水傾斜面１９に連なっている周壁１２Ａを伝って下方へ流れ落ちる。   On the other hand, when rainwater adheres to the inclined surface 18 of the upper wall 12B, the inclined surface 18 has an inclination in which the outer peripheral side is high and the central side is low. After flowing toward the center (ie, the direction away from the outer peripheral side where the drain hole 17 is formed), it flows down the step 20. Then, the drainage inclined surface 19 formed lower than the inclined surface 18 flows from the center side toward the outer peripheral side, and then flows downward along the peripheral wall 12A connected to the drainage inclined surface 19.

このように、本実施形態によれば、液栓１０の頭部１２にかかった雨水などは、傾斜面１８及び排水傾斜面１９の傾斜に従って、常に排気孔１７から遠ざかる方向に移動し、最終的に周壁１２Ａのうち排気孔１７が形成されていない部分を伝って下方へと流れ落ちる。このため、雨水などが排気孔１７を通って蓄電池内へ浸入することを防ぐことができる。   As described above, according to the present embodiment, rainwater or the like applied to the head portion 12 of the liquid stopper 10 always moves away from the exhaust hole 17 according to the inclination of the inclined surface 18 and the drainage inclined surface 19, and finally Then, it flows down through the portion of the peripheral wall 12A where the exhaust hole 17 is not formed. For this reason, rainwater or the like can be prevented from entering the storage battery through the exhaust hole 17.

また、本実施形態によれば、雨水などは傾斜面１８、段差２０、排水傾斜面１９、周壁１２Ａの順に円滑に流れて、液栓１０の上面には雨水などが残らないから、大きな衝撃や振動を受ける場所に搭載される蓄電池として使用した場合であっても、雨水などが排気孔１７から電池内へ浸入することがない。   In addition, according to the present embodiment, rainwater and the like smoothly flow in the order of the inclined surface 18, the step 20, the drainage inclined surface 19, and the peripheral wall 12 </ b> A, and no rainwater or the like remains on the upper surface of the liquid stopper 10. Even when used as a storage battery mounted in a place subject to vibration, rainwater or the like does not enter the battery from the exhaust hole 17.

さらに、頭部１１の周壁１２Ａには、２つの排気孔１７が液栓１０の中心軸に対して対称な位置に１つずつ形成されているから、充電時に発生したガスを円滑に排出することができる。   Furthermore, since the two exhaust holes 17 are formed in the circumferential wall 12A of the head 11 one by one at positions symmetrical to the central axis of the liquid stopper 10, the gas generated during charging can be smoothly discharged. Can do.

＜実施形態２＞
次に、本発明の実施形態２を図５によって説明する。本実施形態においては、上記実施形態１と同一部分には同一符号を付して、重複する説明は省略する。
本実施形態の蓄電池に使用する液栓１０は、排気孔１７が１つだけ形成されている点と、蓋部１２の上面の形状が上記実施形態１において示した液栓１０とは異なる。 <Embodiment 2>
Next, Embodiment 2 of the present invention will be described with reference to FIG. In the present embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.
The liquid stopper 10 used in the storage battery of the present embodiment is different from the liquid stopper 10 shown in the first embodiment in that only one exhaust hole 17 is formed and the shape of the upper surface of the lid portion 12 is.

蓋部１２の上面は、図５に示すように、排気孔１７の上部分から排気孔１７の上部分とは反対側の部分にかけて下降する傾斜面２８となっている。   As shown in FIG. 5, the upper surface of the lid portion 12 is an inclined surface 28 that descends from an upper portion of the exhaust hole 17 to a portion opposite to the upper portion of the exhaust hole 17.

本実施形態の電池の液栓１０の蓋部１２の上面にかかった雨水などは、傾斜面２８を、排気孔１７の上部分から排気孔１７の上部分とは反対側の部分に向かう方向に流れ、周壁１２Ａのうち排気孔１７の形成されていない部分を伝って下方へと流れ落ちる。   Rainwater or the like applied to the upper surface of the lid portion 12 of the battery plug 10 of the present embodiment causes the inclined surface 28 to move from the upper portion of the exhaust hole 17 toward the portion opposite to the upper portion of the exhaust hole 17. It flows down through the portion of the peripheral wall 12A where the exhaust holes 17 are not formed.

したがって、本実施形態によれば、液栓１０の周壁１２Ａのうち排気孔１７が形成されている部分を雨水が伝って流れ落ちることがないうえに、液栓１０の上面に雨水がたまることもないから、雨水などが電池内に浸入するのを防止することができる。   Therefore, according to this embodiment, rainwater does not flow down the portion of the peripheral wall 12A of the liquid stopper 10 where the exhaust hole 17 is formed, and rainwater does not accumulate on the upper surface of the liquid stopper 10. Therefore, it is possible to prevent rainwater and the like from entering the battery.

＜実施形態３＞
図６は本発明の実施形態３を示す。
本実施形態の電池の液栓１０は、蓋部１２の上面の形状が実施形態２と相違する。
蓋部１２の上面は排気孔１７の上部分から上壁１２Ｂの中心に向かって下降する傾斜面２９となっており、段差２０を介して、傾斜面２９よりも低い部分は、高低差のない平面状の領域２６となっている。 <Embodiment 3>
FIG. 6 shows Embodiment 3 of the present invention.
The battery plug 10 of the present embodiment is different from the second embodiment in the shape of the upper surface of the lid 12.
The upper surface of the lid 12 is an inclined surface 29 that descends from the upper portion of the exhaust hole 17 toward the center of the upper wall 12B, and the portion lower than the inclined surface 29 through the step 20 has no height difference. A planar region 26 is formed.

本実施形態の電池の液栓１０の蓋部１２のうち傾斜面２９にかかった雨水などは、排気孔１７の上部分から上壁１２Ｂの中心に向かって下降する傾斜面２９の傾斜に沿って流れ、段差２０を流れ落ちた後、平面状の領域２６を上壁１２Ｂの中心から外周方向へ流れて、周壁１２Ａのうち排気孔１７の形成されていない部分を伝って下方へと流れ落ちる。   Rainwater or the like applied to the inclined surface 29 of the lid portion 12 of the battery plug 10 of the present embodiment follows the inclination of the inclined surface 29 that descends from the upper portion of the exhaust hole 17 toward the center of the upper wall 12B. After flowing down the step 20, the planar region 26 flows from the center of the upper wall 12B toward the outer periphery, and flows downward through the portion of the peripheral wall 12A where the exhaust holes 17 are not formed.

本実施形態によれば、傾斜面１８と平面状の領域２６とは段差２０を介して連なっているから、平面状の領域２６に雨水などがたまったとしても、たまった雨水が傾斜面２９を逆流し難いので、雨水などが排気孔１７に浸入するのを防止することができる。   According to the present embodiment, since the inclined surface 18 and the planar region 26 are connected via the step 20, even if rainwater or the like accumulates in the planar region 26, the accumulated rainwater causes the inclined surface 29 to flow. Since it is difficult to reversely flow, rainwater or the like can be prevented from entering the exhaust hole 17.

＜他の実施形態＞
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
（１）実施形態１においては、排気孔が２つ形成されている液栓を示したが、液栓の上面の構造が実施形態１と同じもので排気孔が１つだけ形成されている図７に示す液栓も本発明に含まれる。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the first embodiment, the liquid stopper having two exhaust holes is shown, but the structure of the upper surface of the liquid stopper is the same as that of the first embodiment, and only one exhaust hole is formed. The liquid stopper shown in 7 is also included in the present invention.

（２）上記実施形態１においては、液栓の上面に傾斜面と排水傾斜面とが形成されたものを示したが、排水傾斜面が形成されている領域は傾斜のない平面であってもよい。   (2) In Embodiment 1 described above, an inclined surface and a drainage inclined surface are formed on the upper surface of the liquid stopper, but the region where the drainage inclined surface is formed may be a flat surface without inclination. Good.

（３）上記実施形態においては、頭部の周壁に４枚のつまみ部を備える液栓について記載したが、つまみ部を２枚備えるもの、つまみ部を備えないもの、蓋部の周壁を部分的に肉薄にすることでつまみ部を形成したものなどであってもよい。   (3) In the above embodiment, the liquid stopper provided with four knobs on the peripheral wall of the head is described. However, the liquid stopper provided with two knobs, the one not provided with the knob, and the peripheral wall of the lid part are partially provided. The knob portion may be formed by making it thin.

（４）上記実施形態においては、頭部の下端にフランジ部が形成された液栓を示したが、フランジ部がないもの、たとえば、液栓の本体部の上端に筒状をなす周壁が連なったものであってもよい。   (4) In the above embodiment, the liquid stopper having the flange portion formed at the lower end of the head portion is shown. However, the liquid stopper having no flange portion, for example, the cylindrical peripheral wall is connected to the upper end of the main body portion of the liquid stopper. It may be.

（５）上記実施形態においては、排気孔は周壁の上端に形成されていたが、排気孔は周壁に形成され、かつ頭部の内部に挿入されるフィルターよりも上側になるように形成されていれば、形成位置は周壁の上端に限定されない。   (5) In the above embodiment, the exhaust hole is formed in the upper end of the peripheral wall, but the exhaust hole is formed in the peripheral wall and is formed above the filter inserted into the head. In this case, the formation position is not limited to the upper end of the peripheral wall.

実施形態１の蓄電池の液栓の斜視図The perspective view of the liquid stopper of the storage battery of Embodiment 1 その上面図Top view 図２のＸ−Ｘ断面図XX sectional view of FIG. 図２のＹ−Ｙ断面図YY sectional view of FIG. 実施形態２の蓄電池の液栓の断面図Sectional drawing of the liquid stopper of the storage battery of Embodiment 2. 実施形態３の蓄電池の液栓の断面図Sectional drawing of the liquid stopper of the storage battery of Embodiment 3 他の実施形態（１）の蓄電池の液栓の断面図Sectional drawing of the liquid stopper of the storage battery of other embodiment (1)

符号の説明Explanation of symbols

１０…液栓
１１…頭部
１２…蓋部
１２Ａ…周壁
１２Ｂ…上壁
１７…排気孔
１８…傾斜面
１９…排水傾斜面
２０…段差
２１…本体部 DESCRIPTION OF SYMBOLS 10 ... Liquid stopper 11 ... Head 12 ... Cover part 12A ... Peripheral wall 12B ... Upper wall 17 ... Exhaust hole 18 ... Inclined surface 19 ... Drained inclined surface 20 ... Step 21 ... Body part

Claims (2)

電池容器に形成された注液口に装着される液栓を備えた蓄電池であって、
前記液栓は、前記注液口に装着された場合に、前記電池容器の上方に突出する頭部と、その頭部の下端に連なる筒状の本体部とを備え、前記頭部の周壁には前記本体部の内側に連通する排気孔が形成され、
前記液栓の頭部の上面には、前記排気孔の上部分から、離れる方向に向かって下降傾斜する傾斜面が形成されていることを特徴とする蓄電池。 A storage battery provided with a liquid stopper attached to a liquid injection port formed in a battery container,
When the liquid stopper is attached to the liquid injection port, the liquid stopper includes a head protruding above the battery container and a cylindrical main body connected to the lower end of the head, and the peripheral wall of the head Is formed with an exhaust hole communicating with the inside of the main body,
The storage battery according to claim 1, wherein an inclined surface is formed on the upper surface of the head of the liquid stopper so as to descend downward from the upper portion of the exhaust hole. 前記液栓の頭部の周壁には、当該周壁の壁面から外周方向へ張り出す板状のつまみ部が形成されている請求項１に記載の蓄電池。The storage battery according to claim 1, wherein a plate-like knob portion is formed on the peripheral wall of the head of the liquid stopper so as to project from the wall surface of the peripheral wall in the outer peripheral direction.
JP2007084348A 2007-03-28 2007-03-28 Storage battery Expired - Fee Related JP5168975B2 (en)

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