JP2005295750A - Charger for cordless motor driven tool - Google Patents

Charger for cordless motor driven tool Download PDF

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JP2005295750A
JP2005295750A JP2004110491A JP2004110491A JP2005295750A JP 2005295750 A JP2005295750 A JP 2005295750A JP 2004110491 A JP2004110491 A JP 2004110491A JP 2004110491 A JP2004110491 A JP 2004110491A JP 2005295750 A JP2005295750 A JP 2005295750A
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charger
power
cordless
storage battery
auxiliary outlet
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JP2004110491A
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JP2005295750A5 (en
Inventor
Mizuho Nakamura
瑞穂 中村
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Koki Holdings Co Ltd
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Hitachi Koki Co Ltd
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Priority to JP2004110491A priority Critical patent/JP2005295750A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a charger for a cordless motor driven tool which can eliminate a troublesome work of removing the cord of the motor driven tool or a domestic electric product already connecting to a plug socket and replacing to insert it to be used for the charger for the cordless motor driven tool in a working environment in which the plug socket is insufficient. <P>SOLUTION: At least one auxiliary plug socket 9 in which a power is supplied from a control circuit substrate 7 through a lead wire 13, is contained in the charger 1 for the cordless motor driven tool. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明はコードレス電動工具用充電器に関するものである。   The present invention relates to a charger for a cordless power tool.

図９〜図１２を参照して例えば特許文献１により提案したコードレス電動工具用充電器２１について説明する。コードレス電動工具用充電器２１の外枠部は上下二つに分割されており、充電される蓄電池を挿入し保持するための穴２２が設けられた外枠２３、２４で構成される空間内に、蓄電池に設けられた各端子に接触する位置に設置され、蓄電池に電力を供給すると共に充電制御のために必要な各種情報を蓄電池から取得する充電端子２５、充電端子２５とリード線２６で接続され、充電を制御する制御回路基板２７が内蔵されている。また、制御回路基板２７には、外部からの電力を供給するための電源コード２８が接続されている。充電端子２５とリード線２６、制御回路基板２７、電源コード２８は、それぞれ外枠２３、２４によって挟まれるように位置決め保持されており、外枠２３、２４はねじ２９によって固定されている。   A cordless power tool charger 21 proposed by, for example, Patent Document 1 will be described with reference to FIGS. 9 to 12. The outer frame portion of the cordless power tool charger 21 is divided into upper and lower parts, and the space formed by the outer frames 23 and 24 provided with holes 22 for inserting and holding the storage battery to be charged is provided. The battery is installed at a position in contact with each terminal provided in the storage battery, and supplies power to the storage battery and obtains various information necessary for charge control from the storage battery. In addition, a control circuit board 27 for controlling charging is incorporated. The control circuit board 27 is connected to a power cord 28 for supplying external power. The charging terminal 25, the lead wire 26, the control circuit board 27, and the power cord 28 are positioned and held so as to be sandwiched between the outer frames 23 and 24, and the outer frames 23 and 24 are fixed by screws 29.

特開平１−３１９２７０号公報JP-A-1-319270

コードレス電動工具は電源コードがないという特質上、建設現場等の近くに常設の電源が無い場所で良く使われている。そのような場所では仮設電源が使われる場合が多く、元々のコンセント数が少ない上、数種類の電動工具を使ったり、ラジオや湯沸しポット等の家電製品も同時に使用されることが多い。そのためコンセントに空きが無いという状況になっている。コードレス電動工具用充電器は蓄電池を充電する時だけ電源に接続すれば良いが、そのために複数の電動工具や家電製品を接続されているコンセントから外して良いコードを見極め、差し替える作業は煩わしいものとなっている。   Cordless power tools are often used in places where there is no permanent power supply near construction sites due to the fact that there is no power cord. In such a place, a temporary power supply is often used, the number of original outlets is small, and several types of electric tools are used, and home appliances such as a radio and a kettle are often used at the same time. For this reason, there is no space in the outlet. The cordless power tool charger only needs to be connected to the power source when charging the storage battery. It has become.

本発明の目的は、上記した従来技術の欠点をなくし、他の電気機器をコンセントから外す必要がないコードレス電動工具用充電器を提供することである。   An object of the present invention is to provide a cordless power tool charger that eliminates the above-mentioned drawbacks of the prior art and does not require other electrical devices to be removed from the outlet.

上記目的は、コードレス電動工具用充電器に電気機器を接続、使用することが可能な補助コンセントを内蔵することにより達成される。   The above object is achieved by incorporating an auxiliary outlet capable of connecting and using an electric device to the cordless power tool charger.

本発明によれば、コードレス電動工具用充電器に電気機器を接続、使用することが可能な補助コンセントを内蔵したので、コードレス電動工具用充電器を使用するために既にコンセントに接続されている電動工具や家電製品のコードを外し、差し替えるといった煩わしい作業をなくすことができ、コンセントの不足を解消するための一助となることが期待できる。また補助コンセントへの電力供給が、蓄電池充電動作の開始、終了と連動して開始、終了されるように設定されたコードレス電動工具用充電器であれば、例えば補助コンセントにラジオ等の音響機器を接続しておけば、コードレス電動工具用充電器から離れた場所にいても、音によって蓄電池の充電開始、終了を認識し易くすることができる。   According to the present invention, since the auxiliary outlet capable of connecting and using the electric device to the cordless electric tool charger is built in, the electric motor already connected to the outlet in order to use the cordless electric tool charger. It is possible to eliminate the troublesome work of removing and replacing the cords of tools and home appliances, and it can be expected to help to solve the shortage of outlets. If the power supply to the auxiliary outlet is a cordless power tool charger that is set to start and end in conjunction with the start and end of the storage battery charging operation, for example, an audio device such as a radio is connected to the auxiliary outlet. If it is connected, it is possible to make it easier to recognize the start and end of charging of the storage battery by sound, even if it is away from the cordless power tool charger.

図１〜図８を用いて本発明コードレス電動工具用充電器１の一実施形態を説明する。コードレス電動工具用充電器１の外枠部は上下二つに分割されており、充電する蓄電池を挿入し保持するための穴２が設けられた外枠３と外枠４で構成される空間内に、蓄電池の各端子に接触する位置に設置され、蓄電池に電力を供給すると共に充電制御のために必要な各種情報を蓄電池から取得する充電端子５、充電端子５とリード線６を介して接続され、充電を制御する制御回路基板７が内蔵されている。また、制御回路基板７には外部からの電力を供給するための電源コード８が接続されている。制御回路基板７からは補助コンセント９に電力を供給するためのリード線１０が引き出されおり、一定以上の電流が流れると回路を遮断、一定時間後に自動で復帰する保護素子１１、電力供給の開始、終了を機械的に切り替えるスイッチ１２及びリード線１３を介して補助コンセント９に接続されている。充電端子５とリード線６、制御回路基板７、電源コード８、補助コンセント９、スイッチ１２は、それぞれ外枠３と外枠４によって挟まれるように位置決め、保持されており、外枠３と外枠４はねじ１４によって固定されている。   One Embodiment of the charger 1 for cordless electric tools of this invention is described using FIGS. The outer frame portion of the cordless power tool charger 1 is divided into two upper and lower parts, and the space formed by the outer frame 3 and the outer frame 4 provided with holes 2 for inserting and holding the storage battery to be charged. Are connected to each terminal of the storage battery, connected to the charging terminal 5 through the lead wire 6 and the charging terminal 5 for supplying power to the storage battery and acquiring various information necessary for charge control from the storage battery. The control circuit board 7 for controlling charging is built in. The control circuit board 7 is connected to a power cord 8 for supplying electric power from the outside. A lead wire 10 for supplying power to the auxiliary outlet 9 is drawn out from the control circuit board 7, the circuit is shut down when a current of a certain level or more flows, the protective element 11 that automatically returns after a certain time, and the start of power supply The auxiliary outlet 9 is connected via a switch 12 and a lead wire 13 for mechanically switching the end. The charging terminal 5, the lead wire 6, the control circuit board 7, the power cord 8, the auxiliary outlet 9, and the switch 12 are positioned and held so as to be sandwiched between the outer frame 3 and the outer frame 4, respectively. The frame 4 is fixed by screws 14.

上記実施形態においては１個の補助コンセント９を設けるとしたが複数のコンセント９を設けてもよいことは明らかである。また補助コンセント９への電力の供給が、蓄電池の充電動作と開始、終了と連動して開始、終了されるようにしても良い。   In the above embodiment, one auxiliary outlet 9 is provided, but it is obvious that a plurality of outlets 9 may be provided. Further, the supply of power to the auxiliary outlet 9 may be started and ended in conjunction with the charging operation and the start and end of the storage battery.

コードレス電動工具用充電器の内部構造を示す平面図。The top view which shows the internal structure of the charger for cordless electric tools. コードレス電動工具用充電器の平面図。The top view of the charger for cordless electric tools. コードレス電動工具用充電器の正面図。The front view of the charger for cordless electric tools. コードレス電動工具用充電器の右側面図。The right view of the charger for cordless electric tools. コードレス電動工具用充電器を構成するスイッチの平面図。The top view of the switch which comprises the charger for cordless electric tools. コードレス電動工具用充電器を構成するスイッチの正面図。The front view of the switch which comprises the charger for cordless electric tools. コードレス電動工具用充電器を構成する補助コンセントの平面図。The top view of the auxiliary | assistant outlet which comprises the charger for cordless electric tools. コードレス電動工具用充電器を構成する補助コンセントの正面図。The front view of the auxiliary | assistant outlet which comprises the charger for cordless electric tools. 従来の充電器の内部構造の一例を示す上面図。The top view which shows an example of the internal structure of the conventional charger. 従来の充電器の平面図。The top view of the conventional charger. 従来の充電器の正面図。The front view of the conventional charger. 従来の充電器の右側面図。The right view of the conventional charger.

符号の説明Explanation of symbols

７：制御回路基板、９：補助コンセント、１２：スイッチ
7: Control circuit board, 9: Auxiliary outlet, 12: Switch

Claims (4)

充電しようとする蓄電池を保持するための蓄電池保持部を有する外枠内に、蓄電池に設けられた端子と接触し、電力を供給すると共に充電制御のために必要な各種情報を蓄電池から取得するための充電端子、充電を制御する制御回路基板を内蔵し、外部電源から制御回路基板に電力を供給する電源コードを備えたコードレス電動工具用充電器であって、
一般の電気機器を接続、使用することができる少なくとも１個の補助コンセントを設けたことを特徴とするコードレス電動工具用充電器。 In order to acquire various information necessary for charge control while supplying power and in contact with a terminal provided in the storage battery in an outer frame having a storage battery holding unit for holding the storage battery to be charged A charging terminal, a control circuit board for controlling charging, and a cordless power tool charger having a power cord for supplying power to the control circuit board from an external power source,
A charger for a cordless power tool, wherein at least one auxiliary outlet capable of connecting and using a general electric device is provided. 前記補助コンセントへの電力供給の開始、終了を切り替えることができるスイッチを設けたことを特徴とする請求項１記載のコードレス電動工具用充電器。 The charger for a cordless electric tool according to claim 1, further comprising a switch capable of switching start and end of power supply to the auxiliary outlet. 前記補助コンセントへの電力の供給量を所定範囲以下に制限する保護回路を設けたことを特徴とする請求項１記載のコードレス電動工具用充電器。 The charger for a cordless electric tool according to claim 1, further comprising a protection circuit that limits an amount of power supplied to the auxiliary outlet to a predetermined range or less. 前記補助コンセントへの電力が、蓄電池充電動作の開始、終了と連動して開始、終了されることを特徴とする請求項１記載のコードレス電動工具用充電器。
The charger for a cordless electric tool according to claim 1, wherein the power to the auxiliary outlet is started and ended in conjunction with the start and end of the storage battery charging operation.
JP2004110491A 2004-04-02 2004-04-02 Charger for cordless motor driven tool Pending JP2005295750A (en)

Priority Applications (1)

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JP2004110491A JP2005295750A (en) 2004-04-02 2004-04-02 Charger for cordless motor driven tool

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JP2004110491A JP2005295750A (en) 2004-04-02 2004-04-02 Charger for cordless motor driven tool

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JP2005295750A true JP2005295750A (en) 2005-10-20
JP2005295750A5 JP2005295750A5 (en) 2007-05-24

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07231657A (en) * 1994-02-15 1995-08-29 Hitachi Ltd Ac adaptor
JP2002191135A (en) * 2000-12-21 2002-07-05 Makita Corp Charging system and battery pack
JP2002203651A (en) * 2000-12-27 2002-07-19 Matsushita Electric Works Ltd Adapter with switch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07231657A (en) * 1994-02-15 1995-08-29 Hitachi Ltd Ac adaptor
JP2002191135A (en) * 2000-12-21 2002-07-05 Makita Corp Charging system and battery pack
JP2002203651A (en) * 2000-12-27 2002-07-19 Matsushita Electric Works Ltd Adapter with switch

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