JP2001250527A - Explosion-proofing plug for battery - Google Patents
Explosion-proofing plug for batteryInfo
- Publication number
- JP2001250527A JP2001250527A JP2000063177A JP2000063177A JP2001250527A JP 2001250527 A JP2001250527 A JP 2001250527A JP 2000063177 A JP2000063177 A JP 2000063177A JP 2000063177 A JP2000063177 A JP 2000063177A JP 2001250527 A JP2001250527 A JP 2001250527A
- Authority
- JP
- Japan
- Prior art keywords
- explosion
- proof
- groove
- proof filter
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、鉛蓄電池の如き蓄
電池で用いる蓄電池用防爆栓に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an explosion-proof plug for a storage battery used in a storage battery such as a lead storage battery.
【０００２】[0002]
【従来の技術】従来のこの種の蓄電池用防爆栓は、図６
に示すように、筒状をなしていて内部にガス通路１を有
し頂部２に排気口３が形成され且つ下部に通気口４が開
口されている防爆栓本体５と、この防爆栓本体５内の上
部にガス通路１を横切って組み込まれた防爆フィルタ６
とを備え、防爆栓本体５の下部外周には蓄電池の蓋に螺
着するためのネジ部７が設けられた構造であった。ガス
通路１の上部で、防爆栓本体５の頂部２内には、ガス通
路１の内径より大きい内径で放圧室８が形成されてい
る。2. Description of the Related Art A conventional explosion-proof plug for a storage battery of this type is shown in FIG.
As shown in the figure, an explosion-proof plug main body 5 having a cylindrical shape, having a gas passage 1 therein, an exhaust port 3 formed in a top portion 2 and a vent 4 opened in a lower portion; Explosion-proof filter 6 installed across gas passage 1
And a screw portion 7 for screwing to the lid of the storage battery is provided on the outer periphery of the lower part of the explosion-proof plug main body 5. A pressure release chamber 8 having an inner diameter larger than the inner diameter of the gas passage 1 is formed in the top portion 2 of the explosion-proof plug main body 5 at the upper part of the gas passage 1.
【０００３】この場合、防爆栓本体５に対する防爆フィ
ルタ６の取付けは、図７に示すように、ガス通路１の直
径Ａ2 より若干大きい直径Ａ1 の防爆フィルタ６を用意
し、この防爆フィルタ６を縮径しつつ圧入して所定の位
置に該防爆フィルタ６の内圧で固定していた。[0003] In this case, attachment of the explosion-proof filter 6 for proof爆栓body 5, as shown in FIG. 7, prepared explosion-proof filter 6 of slightly larger diameter A 1 than the diameter A 2 of the gas passage 1, the explosion-proof filter 6 Of the explosion-proof filter 6 and fixed at a predetermined position by the internal pressure of the explosion-proof filter 6.
【０００４】このような防爆フィルタ６の防爆栓本体５
に対する取付け構造では、防爆フィルタ６の圧縮圧力が
非常に強く、一度装着されると防爆栓本体５の内面から
外れない構造となっている。The explosion-proof plug body 5 of such an explosion-proof filter 6
, The compression pressure of the explosion-proof filter 6 is very strong, and once installed, it does not come off the inner surface of the explosion-proof plug main body 5.
【０００５】このような防爆栓を有する鉛蓄電池では、
充電時に水素ガスが発生し、この水素ガスが電槽内に溜
まって電池内圧が上昇すると、防爆フィルタ６を通り抜
けて通気口４から外部に放出され、内圧の異常上昇を防
止する。排気口３から水素ガスが放出された際に、外部
火点（工具によるスパークやタバコによる火点）により
水素ガスが引火し、蓄電池内部の水素ガスに引火して爆
発するのを防爆フィルタ６で防止する。In a lead-acid battery having such an explosion-proof plug,
When hydrogen gas is generated during charging and this hydrogen gas accumulates in the battery case and raises the internal pressure of the battery, the hydrogen gas passes through the explosion-proof filter 6 and is released to the outside through the vent 4 to prevent an abnormal increase in the internal pressure. When hydrogen gas is released from the exhaust port 3, the hydrogen gas is ignited by an external fire point (a spark by a tool or a cigarette), and the explosion-proof filter 6 ignites and explodes the hydrogen gas in the storage battery. To prevent.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、長期間
の使用により活物質の微粉末等が防爆フィルタ６の内部
の空隙に詰まって、防爆フィルタ６が目詰まりした場
合、充電時に発生したガスが外部に排出されなくなっ
て、蓄電池の内部圧力が異常に上昇し、蓄電池が爆発す
る恐れがある。However, when the explosion-proof filter 6 is clogged with fine powder of the active material or the like due to long-term use, and the explosion-proof filter 6 is clogged, the gas generated at the time of charging becomes external. And the internal pressure of the storage battery may rise abnormally, causing the storage battery to explode.
【０００７】本発明の目的は、防爆フィルタが目詰まり
しても蓄電池内部のガスの排気を行なえる蓄電池用防爆
栓を提供することにある。An object of the present invention is to provide an explosion-proof plug for a storage battery that can exhaust gas inside the storage battery even if the explosion-proof filter is clogged.
【０００８】本発明の他の目的は、防爆フィルタが目詰
まりした場合に、防爆フィルタがガスの圧力を利用して
ガス通路を開放する蓄電池用防爆栓を提供することにあ
る。本発明の他の目的は、防爆フィルタがガス通路を開
放したことを容易に知ることができる蓄電池用防爆栓を
提供することにある。Another object of the present invention is to provide an explosion-proof plug for a storage battery in which when an explosion-proof filter is clogged, the explosion-proof filter uses a gas pressure to open a gas passage. Another object of the present invention is to provide an explosion-proof plug for a storage battery that can easily know that an explosion-proof filter has opened a gas passage.
【０００９】[0009]
【課題を解決するための手段】本発明は、筒状をなして
いて内部にガス通路を有し頂部に排気口が形成され且つ
下部に通気口が開口されている防爆栓本体と、該防爆栓
本体内の上部にガス通路を横切って組み込まれた防爆フ
ィルタとを有する蓄電池用防爆栓を改良するものであ
る。SUMMARY OF THE INVENTION The present invention provides an explosion-proof plug body having a cylindrical shape, having a gas passage therein, an exhaust port formed at the top, and a vent port opened at the bottom. An improved explosion-proof plug for a storage battery having an explosion-proof filter installed across the gas passage at the top inside the plug body.
【００１０】請求項１に記載の蓄電池用防爆栓において
は、防爆フィルタはその下面に異常ガス圧力が作用する
とガス通路を開いてガス圧力を排気口から放圧するよう
になっている。In the explosion-proof plug for a storage battery according to the present invention, when an abnormal gas pressure acts on the lower surface of the explosion-proof filter, the gas passage is opened and the gas pressure is released from the exhaust port.
【００１１】このように防爆フィルタが動作するように
なっていると、蓄電池内のガス圧力が異常に上昇する
と、目詰まりした防爆フィルタが動作してガス通路を開
き、ガス圧力を排気口から放圧する。このため防爆フィ
ルタが目詰まりしても、ガス圧力による蓄電池の爆発を
防止することができる。When the explosion-proof filter operates as described above, when the gas pressure in the storage battery rises abnormally, the clogged explosion-proof filter operates to open the gas passage and release the gas pressure from the exhaust port. Press. Therefore, even if the explosion-proof filter is clogged, explosion of the storage battery due to gas pressure can be prevented.
【００１２】請求項２に記載の蓄電池用防爆栓において
は、防爆栓本体内のガス通路の上部内周には周方向に沿
って溝が形成され、該溝に防爆フィルタの外周が嵌めら
れて該防爆フィルタが支持され、溝の上面には防爆フィ
ルタの下面に異常ガス圧力が作用した際に該防爆フィル
タが溝から外れるようにテーパ面が形成されている。こ
のように防爆フィルタが防爆栓本体に支持されている
と、蓄電池内のガス圧力が異常に上昇してその圧力が目
詰まりした防爆フィルタの下面に作用すると、防爆栓本
体の内周に設けられた溝の上面のテーパ面の存在により
防爆フィルタが該溝から外れてガス通路が開放され、ガ
スは排気口から放出される。このため防爆フィルタが目
詰まりしても、ガス圧力による蓄電池の爆発を防止する
ことができる。In the explosion-proof plug for a storage battery according to the present invention, a groove is formed along the circumferential direction on the upper inner periphery of the gas passage in the explosion-proof plug main body, and the outer periphery of the explosion-proof filter is fitted into the groove. The explosion-proof filter is supported, and a tapered surface is formed on the upper surface of the groove so that the explosion-proof filter comes off the groove when abnormal gas pressure acts on the lower surface of the explosion-proof filter. When the explosion-proof filter is supported by the explosion-proof plug main body, when the gas pressure in the storage battery rises abnormally and the pressure acts on the lower surface of the clogged explosion-proof filter, the explosion-proof plug is provided on the inner periphery of the explosion-proof plug main body. The explosion-proof filter is disengaged from the groove due to the presence of the tapered surface on the upper surface of the groove, the gas passage is opened, and the gas is discharged from the exhaust port. Therefore, even if the explosion-proof filter is clogged, explosion of the storage battery due to gas pressure can be prevented.
【００１３】請求項３に記載の蓄電池用防爆栓において
は、防爆栓本体内のガス通路の上部内周には周方向に沿
って溝が斜め上向きに形成され、該溝に防爆フィルタの
外周が嵌められて該防爆フィルタが斜めに支持され、斜
め上向きの溝の傾斜方向の上部の上面には防爆フィルタ
の下面に異常ガス圧力が作用した際に該防爆フィルタの
傾斜方向の上部が溝から外れるようにテーパ面が形成さ
れている。In the explosion-proof stopper for a storage battery according to the third aspect, a groove is formed obliquely upward along the circumferential direction on the upper inner periphery of the gas passage in the explosion-proof stopper main body, and the outer periphery of the explosion-proof filter is formed in the groove. The explosion-proof filter is obliquely supported by being fitted, and the upper portion of the explosion-proof filter in the inclined direction is disengaged from the groove when abnormal gas pressure acts on the lower surface of the explosion-proof filter on the upper surface of the obliquely upward groove in the inclined direction. Thus, the tapered surface is formed.
【００１４】このように防爆フィルタが防爆栓本体に支
持されていると、蓄電池内のガス圧力が異常に上昇して
その圧力が目詰まりした防爆フィルタの下面に作用する
と、斜め上向きに配置されている防爆フィルタの傾斜方
向の上部が、溝の上面のテーパ面の存在により溝から外
れてガス通路が開放され、ガスは排気口から放出され
る。このため防爆フィルタが目詰まりしても、ガス圧力
による蓄電池の爆発を防止することができる。When the explosion-proof filter is supported by the explosion-proof plug main body, when the gas pressure in the storage battery rises abnormally and the pressure acts on the lower surface of the clogged explosion-proof filter, it is disposed obliquely upward. The upper part of the explosion-proof filter in the inclined direction is separated from the groove by the presence of the tapered surface on the upper surface of the groove, the gas passage is opened, and the gas is discharged from the exhaust port. Therefore, even if the explosion-proof filter is clogged, explosion of the storage battery due to gas pressure can be prevented.
【００１５】請求項４に記載の蓄電池用防爆栓において
は、請求項１，２または３に記載の防爆栓本体の下部に
防沫機構が光透過性の素材により形成されて設けられて
いることを特徴とする。According to a fourth aspect of the present invention, there is provided an explosion-proof stopper for a storage battery, wherein a splash-proof mechanism is formed of a light-transmitting material at a lower portion of the explosion-proof stopper body of the first, second or third aspect. It is characterized by.
【００１６】このように防沫機構が光透過性の素材によ
り形成されていると、目詰まりした防爆フィルタがガス
通路を開放した際には、排気口が明るくなり、防爆フィ
ルタが外れたことを容易に知ることができる。When the splash-proof mechanism is made of a light-transmitting material as described above, when the clogged explosion-proof filter opens the gas passage, the exhaust port becomes bright and the explosion-proof filter comes off. You can easily find out.
【００１７】[0017]
【発明の実施の形態】図１〜図３は本発明に係る蓄電池
用防爆栓における実施の形態の第１例を示したもので、
図１は本例の蓄電池用防爆栓において防爆栓本体に防爆
フィルタを取付ける前の状態を示す縦断面図、図２は本
例の蓄電池用防爆栓において防爆栓本体に防爆フィルタ
を取付けた後の状態を示す縦断面図、図３は図２のイ部
の拡大図である。なお、前述した図６及び図７と対応す
る部分には同一符号を付けて示している。1 to 3 show a first embodiment of a storage battery explosion-proof plug according to the present invention.
FIG. 1 is a longitudinal sectional view showing a state before an explosion-proof filter is attached to an explosion-proof plug main body in the explosion-proof plug for a storage battery of this embodiment, and FIG. FIG. 3 is a longitudinal sectional view showing the state, and FIG. 3 is an enlarged view of a portion A in FIG. Parts corresponding to those in FIGS. 6 and 7 described above are denoted by the same reference numerals.
【００１８】本例の蓄電池用防爆栓においては、防爆栓
本体５内のガス通路１の上部内周には周方向に沿って溝
９が形成されている。この場合、溝９の直径はＡ3 に形
成されている。一方、ガス通路１の直径は従来と同様に
Ａ2 、防爆フィルタ６の直径はＡ1 であり、Ａ2 ＜Ａ
1 、Ａ1 ＝Ａ3 に設定されている。即ち、溝９の直径Ａ
3 は、防爆フィルタ６の直径Ａ1 とほぼ等しく設定され
ている。このような溝９に防爆フィルタ６の外周が嵌め
られて該防爆フィルタ６が支持されている。溝９の上面
には、防爆フィルタ６の下面に異常ガス圧力が作用した
際に該防爆フィルタ６が溝９から外れるようにテーパ面
９ａが形成されている。In the explosion-proof plug for a storage battery according to this embodiment,
A groove is formed in the upper inner periphery of the gas passage 1 in the main body 5 along the circumferential direction.
9 are formed. In this case, the diameter of the groove 9 is AThree Into shape
Has been established. On the other hand, the diameter of the gas passage 1 is the same as the conventional one.
ATwo And the diameter of the explosion-proof filter 6 is A1 And ATwo <A
1 , A1 = AThree Is set to That is, the diameter A of the groove 9
Three Is the diameter A of the explosion-proof filter 6.1 Is set approximately equal to
ing. The outer periphery of the explosion-proof filter 6 is fitted in such a groove 9.
The explosion-proof filter 6 is supported. Upper surface of groove 9
, Abnormal gas pressure acted on the lower surface of the explosion-proof filter 6.
When the explosion-proof filter 6 is removed from the groove 9,
9a are formed.
【００１９】このように防爆フィルタ６が防爆栓本体５
に支持されていると、蓄電池内のガス圧力が異常に上昇
してその圧力が目詰まりした防爆フィルタ６の下面に作
用すると、防爆栓本体５の内周に設けられた溝９の上面
のテーパ面９ａの存在により防爆フィルタ６が該溝９か
ら外れてガス通路１が開放され、ガスは頂部２の排気口
３から放出される。このため防爆フィルタ６が目詰まり
しても、ガス圧力による蓄電池の爆発を防止することが
できる。As described above, the explosion-proof filter 6 is connected to the explosion-proof plug main body 5.
When the gas pressure inside the storage battery rises abnormally and acts on the lower surface of the clogged explosion-proof filter 6, the upper surface of the groove 9 provided on the inner periphery of the explosion-proof plug main body 5 is tapered. Due to the presence of the surface 9a, the explosion-proof filter 6 is disengaged from the groove 9, the gas passage 1 is opened, and the gas is discharged from the exhaust port 3 of the top 2. For this reason, even if the explosion-proof filter 6 is clogged, the explosion of the storage battery due to the gas pressure can be prevented.
【００２０】図４は本発明に係る蓄電池用防爆栓におけ
る実施の形態の第２例を示した縦断面図である。なお、
前述した図１〜図３と対応する部分には同一符号を付け
て示している。FIG. 4 is a longitudinal sectional view showing a second embodiment of the explosion-proof plug for a storage battery according to the present invention. In addition,
Parts corresponding to those in FIGS. 1 to 3 described above are denoted by the same reference numerals.
【００２１】本例の蓄電池用防爆栓においては、防爆栓
本体５内のガス通路１の上部内周には、周方向に沿って
溝９が斜め上向きに形成されている。この溝９には、防
爆フィルタ６の外周が嵌められて該防爆フィルタ６が斜
めに防爆栓本体５に支持されている。この場合の防爆フ
ィルタ６の直径はＡ1 、ガス通路１の直径Ａ2 、溝９の
直径Ａ3 の大きさの関係は、第１例と同様である。斜め
上向きの溝９の傾斜方向の上部の上面には、防爆フィル
タ６の下面に異常ガス圧力が作用した際に該防爆フィル
タ６の傾斜方向の上部が溝９から外れるようにテーパ面
９ａが形成されている。即ち、斜め上向きに傾斜した防
爆フィルタ６の下部は溝９で比較的外れ難く支持され、
上部は溝９の上部のテーパ面９ａで異常ガス圧力が作用
した際に溝９から外れるように支持されている。In the explosion-proof plug for a storage battery according to the present embodiment, a groove 9 is formed obliquely upward along the circumferential direction on the upper inner periphery of the gas passage 1 in the explosion-proof plug main body 5. The outer periphery of the explosion-proof filter 6 is fitted into the groove 9 and the explosion-proof filter 6 is supported by the explosion-proof plug main body 5 at an angle. Diameter A 1 of the explosion-proof filter 6 in this case, the diameter A 2 of the gas passage 1, the magnitude of the relationship between the diameter A 3 of the groove 9 is the same as the first example. A tapered surface 9a is formed on the upper surface of the obliquely upward groove 9 in the inclined direction so that the upper portion of the explosion-proof filter 6 in the inclined direction is disengaged from the groove 9 when abnormal gas pressure acts on the lower surface of the explosion-proof filter 6. Have been. That is, the lower part of the explosion-proof filter 6 inclined obliquely upward is supported by the groove 9 so as to be relatively hard to come off.
The upper part is supported by a tapered surface 9a on the upper part of the groove 9 so as to be separated from the groove 9 when an abnormal gas pressure acts.
【００２２】このように防爆フィルタ６が防爆栓本体５
に支持されていると、蓄電池内のガス圧力が異常に上昇
してその圧力が目詰まりした防爆フィルタ６の下面に作
用すると、斜め上向きに配置されている防爆フィルタ６
の傾斜方向の上部が、溝９の上面のテーパ面９ａの存在
により溝９から外れてガス通路１が開放され、ガスは排
気口３から放出される。このため防爆フィルタ６が目詰
まりしても、ガス圧力による蓄電池の爆発を防止するこ
とができる。In this manner, the explosion-proof filter 6 is
When the gas pressure inside the storage battery rises abnormally and acts on the lower surface of the clogged explosion-proof filter 6, the explosion-proof filter
The upper portion of the groove 9 in the inclined direction is disengaged from the groove 9 due to the presence of the tapered surface 9a on the upper surface of the groove 9, the gas passage 1 is opened, and the gas is discharged from the exhaust port 3. For this reason, even if the explosion-proof filter 6 is clogged, the explosion of the storage battery due to the gas pressure can be prevented.
【００２３】図５（Ａ）（Ｂ）は本発明に係る蓄電池用
防爆栓における実施の形態の第３例を示したもので、
（Ａ）は縦断面図、（Ｂ）は（Ａ）のＸ−Ｘ線断面図で
ある。なお、前述した図１〜図３と対応する部分には同
一符号を付けて示している。FIGS. 5A and 5B show a third embodiment of the explosion-proof plug for a storage battery according to the present invention.
(A) is a longitudinal sectional view, (B) is an XX sectional view of (A). Parts corresponding to those in FIGS. 1 to 3 described above are denoted by the same reference numerals.
【００２４】本例の蓄電池用防爆栓においては、防爆栓
本体５内のガス通路１の上部内周には周方向に沿って溝
９が形成され、この溝９に防爆フィルタ６の外周が嵌め
られて該防爆フィルタ６が支持され、溝９の上面には該
防爆フィルタ６の下面に異常ガス圧力が作用した際に該
防爆フィルタ６が溝９から外れるようにテーパ面９ａが
形成されている点は、第１例と同様になっている。本例
では、防爆栓本体５の下部には、防沫機構１０が光透過
性の素材により形成されて設けられている。この防沫機
構１０は、筒体１０ａ内に２枚の縦板１０ｂ，１０ｃが
その上下を上板１０ｄと底板１０ｅで支持されて配置さ
れ、筒体１０ａの下部に開口部１０ｆが設けられ、縦板
１０ｂ，１０ｃの部分で水平方向の蛇行通路１０ｇを形
成するように開口部１０ｈ，１０ｉが形成された構造に
なっている。In the explosion-proof plug for a storage battery according to the present embodiment, a groove 9 is formed along the circumferential direction in the upper inner periphery of the gas passage 1 in the explosion-proof plug main body 5, and the outer periphery of the explosion-proof filter 6 is fitted into this groove 9. The explosion-proof filter 6 is supported, and a tapered surface 9a is formed on the upper surface of the groove 9 so that the explosion-proof filter 6 comes off the groove 9 when an abnormal gas pressure acts on the lower surface of the explosion-proof filter 6. The points are the same as in the first example. In this example, a splash-proof mechanism 10 is provided below the explosion-proof plug main body 5 and is formed of a light-transmitting material. In the splash-proof mechanism 10, two vertical plates 10b and 10c are arranged inside a cylindrical body 10a, supported by an upper plate 10d and a bottom plate 10e, and an opening 10f is provided at a lower portion of the cylindrical body 10a. Openings 10h and 10i are formed to form horizontal meandering passages 10g at the vertical plates 10b and 10c.
【００２５】このように防沫機構１０が光透過性の素材
により形成されていると、目詰まりした防爆フィルタ６
がガス通路１を開放した際には、排気口３が明るくな
り、防爆フィルタ６が外れたことを容易に知ることがで
きる。When the splash-proof mechanism 10 is made of a light-transmitting material as described above, the clogged explosion-proof filter 6
When the gas passage 1 is opened, the exhaust port 3 becomes bright, and it can be easily known that the explosion-proof filter 6 has come off.
【００２６】[0026]
【発明の効果】請求項１に記載の蓄電池用防爆栓におい
ては、防爆フィルタはその下面に異常ガス圧力が作用す
るとガス通路を開いてガス圧力を排気口から放圧するよ
うになっているので、蓄電池内のガス圧力が異常に上昇
すると、目詰まりした防爆フィルタが動作してガス通路
を開き、ガス圧力を排気口から放圧することができる。
このため防爆フィルタが目詰まりしても、ガス圧力によ
る蓄電池の爆発を防止することができる。In the explosion-proof plug for a storage battery according to the first aspect, when an abnormal gas pressure acts on the lower surface of the explosion-proof filter, the gas passage is opened and the gas pressure is released from the exhaust port. When the gas pressure in the storage battery rises abnormally, the clogged explosion-proof filter operates to open the gas passage and release the gas pressure from the exhaust port.
Therefore, even if the explosion-proof filter is clogged, explosion of the storage battery due to gas pressure can be prevented.
【００２７】請求項２に記載の蓄電池用防爆栓において
は、防爆栓本体内のガス通路の上部内周に周方向に沿っ
て溝を形成し、該溝に防爆フィルタの外周を嵌めて該防
爆フィルタを支持させ、溝の上面には防爆フィルタの下
面に異常ガス圧力が作用した際に該防爆フィルタが溝か
ら外れるようにテーパ面を形成しているので、蓄電池内
のガス圧力が異常に上昇してその圧力が目詰まりした防
爆フィルタの下面に作用すると、防爆栓本体の内周に設
けられた溝の上面のテーパ面の存在により防爆フィルタ
が該溝から外れてガス通路が開放され、ガスを排気口か
ら放出させることができる。このため防爆フィルタが目
詰まりしても、ガス圧力による蓄電池の爆発を防止する
ことができる。In the explosion-proof plug for a storage battery according to the present invention, a groove is formed along the circumferential direction on the upper inner periphery of the gas passage in the explosion-proof plug main body, and the outer periphery of the explosion-proof filter is fitted in the groove. The explosion-proof filter has a tapered surface on the upper surface of the groove so that the explosion-proof filter comes out of the groove when an abnormal gas pressure acts on the lower surface of the explosion-proof filter. Then, when the pressure acts on the lower surface of the clogged explosion-proof filter, the explosion-proof filter is disengaged from the groove due to the tapered surface of the upper surface of the groove provided on the inner periphery of the explosion-proof plug main body, and the gas passage is opened, and the gas is released. Can be discharged from the exhaust port. Therefore, even if the explosion-proof filter is clogged, explosion of the storage battery due to gas pressure can be prevented.
【００２８】請求項３に記載の蓄電池用防爆栓において
は、防爆栓本体内のガス通路の上部内周に周方向に沿っ
て溝を斜め上向きに形成し、該溝に防爆フィルタの外周
を嵌めて該防爆フィルタを斜めに支持させ、斜め上向き
の溝の傾斜方向の上部の上面には防爆フィルタの下面に
異常ガス圧力が作用した際に該防爆フィルタの傾斜方向
の上部が溝から外れるようにテーパ面を形成しているの
で、蓄電池内のガス圧力が異常に上昇してその圧力が目
詰まりした防爆フィルタの下面に作用すると、斜め上向
きに配置されている防爆フィルタの傾斜方向の上部が、
溝の上面のテーパ面の存在により該溝から外れてガス通
路を開放し、ガスを排気口から放出させることができ
る。このため防爆フィルタが目詰まりしても、ガス圧力
による蓄電池の爆発を防止することができる。In the explosion-proof stopper for a storage battery according to the third aspect, a groove is formed obliquely upward along the circumferential direction in the upper inner periphery of the gas passage in the explosion-proof stopper main body, and the outer periphery of the explosion-proof filter is fitted into the groove. The explosion-proof filter is supported obliquely, and the upper part of the explosion-proof filter in the inclined direction is disengaged from the groove when abnormal gas pressure acts on the lower surface of the explosion-proof filter on the upper surface of the obliquely upward groove in the inclined direction. Since the gas pressure in the storage battery rises abnormally because the tapered surface is formed and the pressure acts on the lower surface of the explosion-proof filter that is clogged, the upper part of the explosion-proof filter that is arranged obliquely upwards in the inclination direction,
Due to the tapered surface on the upper surface of the groove, the gas can be released from the groove to open the gas passage, and the gas can be discharged from the exhaust port. Therefore, even if the explosion-proof filter is clogged, explosion of the storage battery due to gas pressure can be prevented.
【００２９】請求項４に記載の蓄電池用防爆栓において
は、請求項１，２または３に記載の防爆栓本体の下部に
防沫機構を光透過性の素材により形成して設けているの
で、目詰まりした防爆フィルタがガス通路を開放した際
には、排気口が明るくなり、防爆フィルタが外れたこと
を容易に知ることができる。In the explosion-proof plug for a storage battery according to the fourth aspect, the splash-proof mechanism is formed of a light-transmitting material and provided below the explosion-proof plug main body according to the first, second, or third aspect. When the clogged explosion-proof filter opens the gas passage, the exhaust port becomes bright, and it can be easily known that the explosion-proof filter has come off.
【図１】本発明に係る蓄電池用防爆栓における実施の形
態の第１例で、防爆栓本体に防爆フィルタを取付ける前
の状態を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing a state before an explosion-proof filter is mounted on an explosion-proof plug main body in a first example of an embodiment of an explosion-proof plug for a storage battery according to the present invention.
【図２】本例の蓄電池用防爆栓において防爆栓本体に防
爆フィルタを取付けた後の状態を示す縦断面図である。FIG. 2 is a longitudinal sectional view showing a state after the explosion-proof filter is attached to the explosion-proof plug main body in the storage battery explosion-proof stopper of the present embodiment.
【図３】図２のイ部の拡大図である。FIG. 3 is an enlarged view of a portion A in FIG. 2;
【図４】本発明に係る蓄電池用防爆栓における実施の形
態の第２例を示した縦断面図である。FIG. 4 is a longitudinal sectional view showing a second example of the embodiment of the storage battery explosion-proof stopper according to the present invention.
【図５】（Ａ）は本発明に係る蓄電池用防爆栓における
実施の形態の第３例を示した縦断面図、（Ｂ）は（Ａ）
のＸ−Ｘ線断面図である。FIG. 5A is a longitudinal sectional view showing a third example of the embodiment of the explosion-proof stopper for a storage battery according to the present invention, and FIG.
FIG. 3 is a sectional view taken along line XX of FIG.
【図６】従来の蓄電池用防爆栓において防爆栓本体に防
爆フィルタを取付けた後の状態を示す縦断面図である。FIG. 6 is a longitudinal sectional view showing a state after an explosion-proof filter is attached to an explosion-proof plug main body in a conventional explosion-proof plug for a storage battery.
【図７】従来の蓄電池用防爆栓において防爆栓本体に防
爆フィルタを取付ける前の状態を示す縦断面図である。FIG. 7 is a longitudinal sectional view showing a state before an explosion-proof filter is attached to an explosion-proof plug main body in a conventional explosion-proof plug for a storage battery.
１ ガス通路 ２ 頂部 ３ 排気口 ４ 通気口 ５ 防爆栓本体 ６ 防爆フィルタ ７ ネジ部 ８ 放圧室 ９ 溝 １０ 防沫機構 １０ａ 筒体 １０ｂ，１０ｃ 縦板 １０ｄ 上板 １０ｅ 底板 １０ｆ 開口部 １０ｇ 蛇行通路 １０ｈ，１０ｉ 開口部 DESCRIPTION OF SYMBOLS 1 Gas passage 2 Top part 3 Exhaust port 4 Vent port 5 Explosion-proof plug main body 6 Explosion-proof filter 7 Screw part 8 Pressure relief chamber 9 Groove 10 Splash-proof mechanism 10a Cylindrical body 10b, 10c Vertical plate 10d Upper plate 10e Bottom plate 10f Opening 10g meandering passage 10h, 10i Opening
Claims (4)
頂部に排気口が形成され且つ下部に通気口が開口されて
いる防爆栓本体と、前記防爆栓本体内の上部に前記ガス
通路を横切って組み込まれた防爆フィルタとを有する蓄
電池用防爆栓において、 前記防爆フィルタはその下面に異常ガス圧力が作用する
と前記ガス通路を開いて前記ガス圧力を前記排気口から
放圧するようになっている蓄電池用防爆栓。An explosion-proof plug body having a cylindrical shape, having a gas passage therein, an exhaust port formed at the top, and a vent hole opened at a lower portion, and the gas stopper at an upper portion in the explosion-proof plug body. An explosion-proof plug for a storage battery having an explosion-proof filter incorporated across a passage, wherein the explosion-proof filter opens the gas passage and releases the gas pressure from the exhaust port when an abnormal gas pressure acts on its lower surface. Explosion-proof stopper for storage batteries.
内周には周方向に沿って溝が形成され、前記溝に前記防
爆フィルタの外周が嵌められて前記防爆フィルタが支持
され、前記溝の上面には前記防爆フィルタの下面に異常
ガス圧力が作用した際に該防爆フィルタが前記溝から外
れるようにテーパ面が形成されている請求項１に記載の
蓄電池用防爆栓。2. A groove is formed along the circumferential direction on an upper inner periphery of the gas passage in the explosion-proof stopper main body, and an outer periphery of the explosion-proof filter is fitted in the groove to support the explosion-proof filter. The explosion-proof plug for a storage battery according to claim 1, wherein a tapered surface is formed on an upper surface of the groove so that the explosion-proof filter comes off the groove when an abnormal gas pressure acts on a lower surface of the explosion-proof filter.
内周には周方向に沿って溝が斜め上向きに形成され、前
記溝に前記防爆フィルタの外周が嵌められて前記防爆フ
ィルタが斜めに支持され、斜め上向きの前記溝の傾斜方
向の上部の上面には前記防爆フィルタの下面に異常ガス
圧力が作用した際に該防爆フィルタの傾斜方向の上部が
前記溝から外れるようにテーパ面が形成されている請求
項１に記載の蓄電池用防爆栓。3. A groove is formed obliquely upward along the circumferential direction in an upper inner periphery of the gas passage in the explosion-proof stopper main body, and an outer periphery of the explosion-proof filter is fitted in the groove, so that the explosion-proof filter is inclined. The upper surface of the upper portion of the groove in the oblique direction facing upward is tapered so that the upper portion of the explosion-proof filter in the oblique direction comes off the groove when abnormal gas pressure acts on the lower surface of the explosion-proof filter. The explosion-proof stopper for a storage battery according to claim 1, wherein the stopper is formed.
過性の素材により形成されて設けられている請求項１，
２または３に記載の蓄電池用防爆栓。4. An explosion-proof mechanism is provided at a lower portion of the explosion-proof stopper main body and formed of a light-transmitting material.
4. The explosion-proof stopper for a storage battery according to 2 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000063177A JP2001250527A (en) | 2000-03-08 | 2000-03-08 | Explosion-proofing plug for battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000063177A JP2001250527A (en) | 2000-03-08 | 2000-03-08 | Explosion-proofing plug for battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001250527A true JP2001250527A (en) | 2001-09-14 |
Family
ID=18583084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000063177A Pending JP2001250527A (en) | 2000-03-08 | 2000-03-08 | Explosion-proofing plug for battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001250527A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006040706A (en) * | 2004-07-27 | 2006-02-09 | Japan Storage Battery Co Ltd | Storage battery |
-
2000
- 2000-03-08 JP JP2000063177A patent/JP2001250527A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006040706A (en) * | 2004-07-27 | 2006-02-09 | Japan Storage Battery Co Ltd | Storage battery |
| JP4706201B2 (en) * | 2004-07-27 | 2011-06-22 | 株式会社Ｇｓユアサ | Storage battery |
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