JPH063577U - Battery tool - Google Patents
Battery toolInfo
- Publication number
- JPH063577U JPH063577U JP4238192U JP4238192U JPH063577U JP H063577 U JPH063577 U JP H063577U JP 4238192 U JP4238192 U JP 4238192U JP 4238192 U JP4238192 U JP 4238192U JP H063577 U JPH063577 U JP H063577U
- Authority
- JP
- Japan
- Prior art keywords
- storage battery
- motor
- battery
- switch
- hydrogen gas
- 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.)
- Granted
Links
Landscapes
- Battery Mounting, Suspending (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
(57)【要約】
【目的】 本考案は蓄電池を電源とする電池工具の安全
装置に関するものであり、その目的はモータ、スイッ
チ、端子板の周りに水素ガスが溜らないようにして電池
工具の安全性を高めることである。
【構成】 モータ2の動力を減速してチャック4に伝え
える減速機5、スイッチ3と端子板6を介してモータ2
と接続される蓄電池12、蓄電池保持部をモータ2、ス
イッチ3と隔てる隔壁9、蓄電池保持部に溜った水素ガ
スを外部へ逃がすガス抜き穴8及び前記構成物を覆う外
枠1で構成される。
(57) [Abstract] [Purpose] The present invention relates to a safety device for a battery tool that uses a storage battery as a power source, and its purpose is to prevent hydrogen gas from accumulating around a motor, a switch, and a terminal plate. To increase safety. [Structure] The speed reducer 5 that can reduce the power of the motor 2 and transmit it to the chuck 4, the motor 2 via a switch 3 and a terminal plate 6.
A storage battery 12 connected to the storage battery, a motor 2 for separating the storage battery holding portion, a partition wall 9 separating the switch 3, a gas vent hole 8 for letting out hydrogen gas accumulated in the storage battery holding portion to the outside, and an outer frame 1 for covering the above components. .
Description
【0001】[0001]
本考案は蓄電池を電源とする電池工具の安全装置に関するものである。 The present invention relates to a safety device for a battery tool that uses a storage battery as a power source.
【0002】[0002]
電池工具、例えばコードレスドライバ等の電源に使用されている蓄電池は、充 電器の充電停止装置の異常時等に起こる過充電や重負荷作業(太いねじを締め付 ける作業等)時になりやすい過放電を行うと、蓄電池内部で発生する水素ガスが 消費しきれなくなる。そのため蓄電池の内圧が上昇し、安全装置として設けられ ている弁が開き水素ガスが発生する。 Battery tools, such as storage batteries used for power sources such as cordless drivers, are easily overcharged or over-discharged during heavy load work (such as tightening thick screws) that occurs when the charging stop device of the charger is abnormal. By doing so, the hydrogen gas generated inside the storage battery cannot be completely consumed. Therefore, the internal pressure of the storage battery rises, and the valve provided as a safety device opens to generate hydrogen gas.
【0003】[0003]
従来の電池工具は、蓄電池保持部をモータ、スイッチ等の発火源から隔てるこ となく、また蓄電池保持部に蓄電池を装着した時、電池工具内部がほぼ密閉状態 となるため、蓄電池保持部にある蓄電池をスイッチを結ぶ端子板やモータ、スイ ッチ等の発火源の周りに水素ガスが溜り、前記発火源から発生する火花で爆発す る恐れがあるという問題があった。 本考案の目的は、モータ、スイッチ、端子板の周りに水素ガスが溜らないよう にして電池工具の安全性を高めることである。 Conventional battery tools are located in the storage battery holder because the storage battery holder is not separated from ignition sources such as motors and switches, and when the storage battery is installed in the storage battery holder, the inside of the battery tool is almost sealed. There is a problem that hydrogen gas accumulates around ignition sources such as a terminal plate connecting a storage battery to a switch, a motor and a switch, and a spark generated from the ignition source may cause an explosion. An object of the present invention is to improve the safety of the battery tool by preventing hydrogen gas from accumulating around the motor, the switch and the terminal board.
【0004】[0004]
上記目的は、電池工具の蓄電池保持部をモータ、スイッチと隔てる隔壁と、蓄 電池保持部に水素ガスを抜くガス抜き穴を設けることにより達成される。 The above object is achieved by providing a partition wall that separates the storage battery holding portion of the battery tool from the motor and the switch, and providing a gas vent hole through which the storage battery holding portion releases hydrogen gas.
【0005】[0005]
上記のように構成された電池工具は、隔壁で蓄電池保持部をモータ、スイッチ と隔てることにより、モータ、スイッチへの水素ガスの侵入を防ぎ且つ蓄電池保 持部に設けたガス抜き穴により溜った水素ガスを外部へ逃がす。 In the battery tool configured as described above, the partition wall separates the storage battery holding part from the motor and the switch to prevent hydrogen gas from entering the motor and the switch and collect the gas from the gas vent hole provided in the storage battery holding part. Release hydrogen gas to the outside.
【0006】[0006]
本考案の一実施例を図1〜図3に示す。 図においてモータ2の動力を減速してチャック4に伝える減速機5、蓄電池1 2とスイッチ3を接続する端子板6、該端子板6を押さえる端子板押さえ7、モ ータ2とスイッチ3を蓄電池保持部を隔てる隔壁9、1は外枠である2つ割りハ ウジングであり、8は外枠1である2つ割りハウジングの結合部を利用して電池 保持部に設けたガス抜き穴である。蓄電池12は、直列に接続された組電池11 と、これを覆う電池ケース10より構成される。また図3は図1をA方向から見 たずで、ガス抜き穴8の形状と位置を示すものである。 次に動作について説明する。蓄電池12は過充電過放電時に内圧が上昇し、安 全装置として設けてある弁が開き、図2に示すように水素ガスが電池ケース10 の隙間から抜ける。電池工具に蓄電池12を装着した状態で水素ガスが発生する と上昇するが隔壁9によりモータ2、スイッチ3への侵入ができず、外枠1の電 池保持部に設けたガス抜き穴8から外へ逃げる。 One embodiment of the present invention is shown in FIGS. In the figure, a speed reducer 5 that decelerates the power of the motor 2 and transmits it to the chuck 4, a terminal plate 6 that connects the storage battery 12 and the switch 3, a terminal plate retainer 7 that presses the terminal plate 6, a motor 2 and the switch 3 are shown. Partition walls 9 and 1 for separating the storage battery holding portion are outer housing halved housings, and 8 is a vent hole provided in the battery holding portion by utilizing a joint portion of the outer housing 1 halved housing. is there. The storage battery 12 is composed of an assembled battery 11 connected in series and a battery case 10 covering the assembled battery 11. FIG. 3 shows the shape and position of the gas vent hole 8 without looking at FIG. 1 from the direction A. Next, the operation will be described. The internal pressure of the storage battery 12 rises during overcharging and overdischarging, the valve provided as a safety device opens, and hydrogen gas escapes from the gap of the battery case 10 as shown in FIG. It rises when hydrogen gas is generated with the storage battery 12 attached to the battery tool, but the partition wall 9 prevents the motor 2 and the switch 3 from entering, and the gas vent hole 8 provided in the battery holding portion of the outer frame 1 Run outside.
【0007】[0007]
本考案によれば、蓄電池保持部をモータ、スイッチと隔てる隔壁を設けたこと により、モータ、スイッチへの水素ガスの侵入を防ぎ且つ蓄電池保持部に設けた ガス抜き穴により蓄電池保持部に水素ガスを溜らないようにしたので、爆発する 恐れが少なくなる。 According to the present invention, by providing the partition wall that separates the storage battery holding portion from the motor and the switch, hydrogen gas is prevented from entering the motor and the switch, and the gas vent hole provided in the storage battery holding portion prevents hydrogen gas from entering the storage battery holding portion. Since it is not stored, the risk of explosion is reduced.
【図面の簡単な説明】[Brief description of drawings]
【図1】 本考案電池工具の一実施例を示す一部断面側
面図。FIG. 1 is a partial sectional side view showing an embodiment of a battery tool of the present invention.
【図2】 蓄電池から水素ガスが抜ける状態を示す斜視
図。FIG. 2 is a perspective view showing a state where hydrogen gas is released from the storage battery.
【図3】 図1の正面図。FIG. 3 is a front view of FIG.
1は外枠、2はモータ、3はスイッチ、6は端子板、8
はガス抜き穴、9は隔壁、12は蓄電池である。1 is an outer frame, 2 is a motor, 3 is a switch, 6 is a terminal plate, 8
Is a vent hole, 9 is a partition wall, and 12 is a storage battery.
Claims (1)
て、モータ、スイッチ、減速機等基幹部品を覆う外枠の
電池保持部に蓄電池から発生する水素ガスを抜くガス抜
き穴を設けると共に電池保持部を発火源であるモータ、
スイッチから隔てる隔壁を設けたことを特徴とする電池
工具。1. In a battery tool using a storage battery as a power source, a battery vent portion for venting hydrogen gas generated from the storage battery is provided in a battery holding portion of an outer frame that covers basic components such as a motor, a switch and a speed reducer, and a battery holding portion. The ignition source is the motor,
Battery tool characterized by having a partition separating it from the switch.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1992042381U JP2588714Y2 (en) | 1992-06-19 | 1992-06-19 | Battery tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1992042381U JP2588714Y2 (en) | 1992-06-19 | 1992-06-19 | Battery tool |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH063577U true JPH063577U (en) | 1994-01-18 |
JP2588714Y2 JP2588714Y2 (en) | 1999-01-13 |
Family
ID=12634482
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1992042381U Expired - Lifetime JP2588714Y2 (en) | 1992-06-19 | 1992-06-19 | Battery tool |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2588714Y2 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51133889U (en) * | 1975-04-19 | 1976-10-28 | ||
JPS61104426A (en) * | 1984-10-24 | 1986-05-22 | Fuji Photo Film Co Ltd | Magnetic recording medium |
JPS639767U (en) * | 1986-07-08 | 1988-01-22 |
-
1992
- 1992-06-19 JP JP1992042381U patent/JP2588714Y2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51133889U (en) * | 1975-04-19 | 1976-10-28 | ||
JPS61104426A (en) * | 1984-10-24 | 1986-05-22 | Fuji Photo Film Co Ltd | Magnetic recording medium |
JPS639767U (en) * | 1986-07-08 | 1988-01-22 |
Also Published As
Publication number | Publication date |
---|---|
JP2588714Y2 (en) | 1999-01-13 |
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Legal Events
Date | Code | Title | Description |
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A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19981006 |
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