JPH06150978A - Charger - Google Patents
ChargerInfo
- Publication number
- JPH06150978A JPH06150978A JP29407092A JP29407092A JPH06150978A JP H06150978 A JPH06150978 A JP H06150978A JP 29407092 A JP29407092 A JP 29407092A JP 29407092 A JP29407092 A JP 29407092A JP H06150978 A JPH06150978 A JP H06150978A
- Authority
- JP
- Japan
- Prior art keywords
- recess
- battery
- battery pack
- charger
- housing
- 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
- Secondary Cells (AREA)
Abstract
(57)【要約】
【目的】 充電時の電池の温度上昇を防止し、電池の長
寿命化を実現することができる充電器を提供することで
ある。
【構成】 充電器１１の凹所１３の内壁２８には、凹所
１３内へ装着された電池パック１４を検出するスイッチ
２１が配置される。整流回路１５からの直流電流は、前
記スイッチ２１を介してモ−タ２２に供給される。モ−
タ２２には冷却ファン２３が接続される。冷却ファン２
３による空気流は、ハウジング１２内に設けられたヒ−
トパイプ２４の一端に衝突する。ヒ−トパイプ２４の他
端は、前記凹所１３内に露出し、凹所１３内を上方に向
けて延びる。ヒ−トパイプ２４によって、凹所１３内の
電池パック１４が冷却される。
(57) [Abstract] [Purpose] It is intended to provide a charger capable of preventing a temperature rise of a battery during charging and achieving a long life of the battery. A switch 21 for detecting the battery pack 14 mounted in the recess 13 is arranged on an inner wall 28 of the recess 13 of the charger 11. The direct current from the rectifier circuit 15 is supplied to the motor 22 via the switch 21. Mode
A cooling fan 23 is connected to the controller 22. Cooling fan 2
The air flow due to 3 is a heat provided in the housing 12.
It collides with one end of the pipe 24. The other end of the heat pipe 24 is exposed in the recess 13 and extends upward in the recess 13. The heat pipe 24 cools the battery pack 14 in the recess 13.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、充電可能な電池を充電
する充電器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charger for charging a rechargeable battery.
【０００２】[0002]
【従来の技術】図５は従来の充電器１の断面図である。
充電器１は、ハウジング２に凹所３が形成され、充電可
能な電池パック４がこの凹所３に装着される。ハウジン
グ２内には整流回路５が備えられ、外部の商用交流電源
に電源ケ−ブル６を介して接続され、予め定めるレベル
の直流電流を出力する。前記凹所３には、１対の端子
７，７が設けられ、電池パック４を凹所３に装着したと
き、電池パック４の端子８，８とそれぞれ接触する。こ
れにより、電池パック４の電池セル９は前記整流回路５
からの直流電流によって充電される。2. Description of the Related Art FIG. 5 is a sectional view of a conventional charger 1.
In the charger 1, a recess 3 is formed in a housing 2, and a rechargeable battery pack 4 is mounted in the recess 3. A rectifier circuit 5 is provided in the housing 2 and is connected to an external commercial AC power source via a power cable 6 to output a DC current of a predetermined level. The recess 3 is provided with a pair of terminals 7, 7 which come into contact with the terminals 8, 8 of the battery pack 4 when the battery pack 4 is mounted in the recess 3. As a result, the battery cells 9 of the battery pack 4 are connected to the rectifier circuit 5
It is charged by the direct current from.
【０００３】[0003]
【発明が解決しようとする課題】従来の充電器１を用い
て、電池４を凹所３に装着して充電を行う際に、充電が
進行するに従って電池セル９から次第に熱が発生するこ
とが知られている。この熱による電池セル９の温度上昇
は、電池セル９の構成物質の特性に影響を及ぼし、電池
セル９の寿命を短くしてしまうという課題を有してい
る。When the battery 4 is mounted in the recess 3 and charged by using the conventional charger 1, heat may gradually be generated from the battery cells 9 as the charging progresses. Are known. The temperature rise of the battery cell 9 due to this heat affects the characteristics of the constituent substances of the battery cell 9 and has a problem that the life of the battery cell 9 is shortened.
【０００４】本発明の目的は、上述の技術的課題を解決
し、充電時の電池の温度上昇を防止し、電池の長寿命化
を実現することができる充電器を提供することである。An object of the present invention is to solve the above technical problems and to provide a charger capable of preventing the temperature rise of the battery during charging and extending the life of the battery.
【０００５】[0005]
【課題を解決するための手段】本発明は、交流電源に接
続され、予め定めるレベルの直流電流を出力可能な整流
手段と、整流手段を収納するハウジングと、ハウジング
に装着され、前記整流手段からの出力によって充電され
る充電可能な電池を冷却する冷却手段とを含むことを特
徴とする充電器である。According to the present invention, there is provided a rectifying means which is connected to an AC power source and can output a direct current of a predetermined level, a housing which houses the rectifying means, and which is attached to the housing. And a cooling means for cooling the rechargeable battery charged by the output of the charger.
【０００６】[0006]
【作 用】本発明に従えば、充電器のハウジングに充電
可能な電池を装着して充電を行うに際して、電池は整流
手段からの、予め定めるレベルの直流電流によって充電
される。このとき、ハウジングには冷却手段が装着され
ていて、前記充電可能な電池を冷却する。従って、電池
は充電を行っている機関に亘り、冷却されるので、充電
に伴う電池の発熱によって、電池の特性が変化し電池の
寿命が短くなる事態を防止することができ、電池の長寿
命化を図ることができる。According to the present invention, when the rechargeable battery is mounted in the housing of the charger for charging, the battery is charged by the direct current of the predetermined level from the rectifying means. At this time, a cooling means is attached to the housing to cool the rechargeable battery. Therefore, since the battery is cooled down over the engine that is charging, it is possible to prevent a situation in which the battery characteristics change due to heat generation of the battery due to charging and the battery life is shortened. Can be realized.
【０００７】[0007]
【実施例】図１は本発明の一実施例の充電器１１の断面
図であり、図２は充電器１１のハウジング１２の一部分
の断面図である。充電器１１は、ハウジング１２を有
し、ハウジング１２には凹所１３が形成される。充電可
能な電池パック１４がこの凹所１３に装着される。ハウ
ジング１２内には整流回路１５が備えられ、外部の商用
交流電源に電源ケ−ブル１６を介して接続され、予め定
めるレベルの直流電流を出力する。前記凹所１３の内壁
２８には、整流回路１５からの直流電流が供給される１
対の端子１７，１７が、充電可能な電池である電池パッ
ク１４を凹所１３に装着したとき、電池パック１４の端
子１８，１８とそれぞれ接触する位置に配置される。1 is a sectional view of a charger 11 according to an embodiment of the present invention, and FIG. 2 is a sectional view of a part of a housing 12 of the charger 11. The charger 11 has a housing 12, and a recess 13 is formed in the housing 12. A rechargeable battery pack 14 is mounted in this recess 13. A rectifier circuit 15 is provided in the housing 12 and is connected to an external commercial AC power source via a power cable 16 to output a DC current of a predetermined level. Direct current from the rectifier circuit 15 is supplied to the inner wall 28 of the recess 13.
When the battery pack 14, which is a rechargeable battery, is mounted in the recess 13, the pair of terminals 17, 17 are arranged at positions where they respectively contact the terminals 18, 18 of the battery pack 14.
【０００８】電池パック１４は、ハウジング１９を備
え、前記端子１８，１８はハウジング１９の外面あるい
は底面などに配置される。また、ハウジング１９内に
は、電池セル２０が設けられ、端子１８，１８を介して
外部から供給される前記直流電流によって充電される。
ハウジング１９の底部には、ハウジング１９内を図１の
情報に向かって延びる挿通孔２７が形成される。The battery pack 14 includes a housing 19, and the terminals 18, 18 are arranged on the outer surface or the bottom surface of the housing 19. A battery cell 20 is provided in the housing 19 and is charged by the direct current supplied from the outside via the terminals 18, 18.
An insertion hole 27 extending in the housing 19 toward the information in FIG. 1 is formed at the bottom of the housing 19.
【０００９】充電器１１の前記凹所１３の内壁２８に
は、凹所１３内へ装着された電池パック１４を検出する
スイッチ２１が配置される。前記整流回路１５からの直
流電流は、前記スイッチ２１を介してモ−タ２２に供給
される。モ−タ２２には冷却ファン２３が接続される。
冷却ファン２３による空気流は、ハウジング１２内に設
けられたヒ−トパイプ２４の一端に衝突する。ヒ−トパ
イプ２４の他端は、前記凹所１３内に露出し、凹所１３
内を図１の上方に向けて延びる。ここで、外部からの冷
却用空気をハウジング１２内に取り入れ、冷却用ファン
２３によって前記空気流とし、ヒ−トパイプ２４の冷却
後の空気流をハウジング１２の外部に逃すために、ハウ
ジング１２において、冷却用ファン２３の背後側に給気
孔２５が形成され、ヒ−トパイプ２４の前記一端の背後
側に排気孔２６が形成される。また、ハウジング１２の
外面には、凹所１３に装着された電池パック１４が充電
未完了である事を示す例として赤色の報知ランプ２９
と、電池パック１４の充電が完了したことを示す例とし
て緑色の放置ランプ３０とが配置される。A switch 21 for detecting the battery pack 14 mounted in the recess 13 is arranged on the inner wall 28 of the recess 13 of the charger 11. The direct current from the rectifier circuit 15 is supplied to the motor 22 via the switch 21. A cooling fan 23 is connected to the motor 22.
The airflow from the cooling fan 23 collides with one end of a heat pipe 24 provided inside the housing 12. The other end of the heat pipe 24 is exposed in the recess 13 and
The inside extends upward in FIG. Here, in order to let the cooling air from the outside into the housing 12 and make the air flow by the cooling fan 23, and let the air flow after cooling the heat pipe 24 escape to the outside of the housing 12, in the housing 12, An air supply hole 25 is formed behind the cooling fan 23, and an exhaust hole 26 is formed behind the one end of the heat pipe 24. On the outer surface of the housing 12, a red notification lamp 29 is provided as an example showing that the battery pack 14 mounted in the recess 13 has not been charged.
Then, as an example showing that charging of the battery pack 14 is completed, a green standing lamp 30 is arranged.
【００１０】図３は充電器１１の電気的構成を示す回路
図である。電源ケ−ブル１６を介して供給される交流電
力は、整流回路１５で予め定めるレベルの直流電流に整
流され、端子１７，１７に供給される。端子１７，１７
の一方と整流回路１５との間には抵抗３１が接続され、
整流回路１５から端子１７，１７に流れる電流を、抵抗
３１における電圧として検出する電圧検出回路３２が、
抵抗３１に並列に接続される。電圧検出回路３２が、抵
抗３１における電圧を予め定める基準電圧以上と判断す
ると前記赤色の報知ランプ３０を点灯し、前記抵抗３１
における電圧が前記基準電圧未満と判断すると、緑色の
報知ランプ２９を点灯する。FIG. 3 is a circuit diagram showing the electrical configuration of the charger 11. The AC power supplied via the power supply cable 16 is rectified by the rectifier circuit 15 into a DC current having a predetermined level and supplied to the terminals 17 and 17. Terminals 17, 17
A resistor 31 is connected between the one side and the rectifier circuit 15,
The voltage detection circuit 32 that detects the current flowing from the rectifier circuit 15 to the terminals 17 and 17 as the voltage across the resistor 31 is
It is connected in parallel with the resistor 31. When the voltage detection circuit 32 determines that the voltage in the resistor 31 is equal to or higher than the predetermined reference voltage, the red notification lamp 30 is turned on to turn on the resistor 31.
When it is determined that the voltage at is less than the reference voltage, the green notification lamp 29 is turned on.
【００１１】電池パック１４の充電を行うには、電池パ
ック１４を充電器１１の凹所１３に装着する。このと
き、前記ヒ−トパイプ２４を、電池パック１４の挿通孔
２７に挿通する。電池パック１４を凹所１３に装着する
ことにより、電池パック１４の外面によって前記スイッ
チ２１が導通状態になる。また、電池パック１４の端子
１８，１８が、充電器１１の端子に接触する。これによ
り、電池パック１４の電池セル１９は前記整流回路５か
らの直流電流によって充電される。また、スイッチ２１
の導通により、モ−タ２２が起動され冷却ファン２３が
回転する。これにより、ヒ−トパイプ２４の一端が冷却
され、電池パック１４内のヒ−トパイプ２４の他端との
間で熱交換が行われ、電池パック１４が冷却される。こ
のとき、電池パック１４の電池セル２０が放電状態であ
れば、抵抗３１に電流が流れ、電圧検出回路３２は赤色
の報知ランプ２９を点灯する。To charge the battery pack 14, the battery pack 14 is mounted in the recess 13 of the charger 11. At this time, the heat pipe 24 is inserted into the insertion hole 27 of the battery pack 14. By mounting the battery pack 14 in the recess 13, the outer surface of the battery pack 14 brings the switch 21 into conduction. Further, the terminals 18, 18 of the battery pack 14 come into contact with the terminals of the charger 11. As a result, the battery cells 19 of the battery pack 14 are charged with the direct current from the rectifier circuit 5. Also, the switch 21
When the motor 22 is activated, the motor 22 is activated and the cooling fan 23 is rotated. As a result, one end of the heat pipe 24 is cooled, heat is exchanged with the other end of the heat pipe 24 in the battery pack 14, and the battery pack 14 is cooled. At this time, if the battery cells 20 of the battery pack 14 are in a discharged state, a current flows through the resistor 31, and the voltage detection circuit 32 turns on the red notification lamp 29.
【００１２】電池パック１４の充電が進行し、電池セル
２０が充分に充電されると、抵抗３１を流れる電流が減
少する。電圧検出回路３２が抵抗３１の電圧を前記基準
電圧未満と判断すると、前記報知ランプ２９を消灯し、
緑色の報知ランプ３０を点灯する。操作者が電池パック
１４を取り外すと、スイッチ２１が遮断されモ−タ２２
が停止する。When the charging of the battery pack 14 progresses and the battery cells 20 are sufficiently charged, the current flowing through the resistor 31 decreases. When the voltage detection circuit 32 determines that the voltage of the resistor 31 is less than the reference voltage, the notification lamp 29 is turned off,
The green notification lamp 30 is turned on. When the operator removes the battery pack 14, the switch 21 is shut off and the motor 22
Stops.
【００１３】このようにして、本実施例の充電器１１で
は、電池パック１４の充電を行う際に、ヒ−トパイプ２
４で冷却しつつ行うので、電池パック１４における温度
上昇が防止され、電池パック１４の長寿命化を図ること
ができる。また、冷却ファン２２は、充電器１１に電池
パック１４が装着されている状態でのみ回転するので、
無駄な電力消費が防止される。In this way, in the charger 11 of this embodiment, when the battery pack 14 is charged, the heat pipe 2
Since it is performed while cooling in 4, the temperature rise in the battery pack 14 can be prevented and the life of the battery pack 14 can be extended. Further, since the cooling fan 22 rotates only when the battery pack 14 is attached to the charger 11,
Useless power consumption is prevented.
【００１４】図４は本発明の他の実施例の充電器１１ａ
の断面図である。本実施例は、前述の実施例に類似し対
応する部分には同一の参照符号を付す。本実施例の特徴
は、前記第１の実施例におけるヒ−トパイプ２４を用い
ず、冷却ファン２３による空気流を、直接に電池パック
１４に衝突させるようにしたことである。すなわち、ハ
ウジング１２には、取付部３３が設けられ、冷却ファン
２３が、冷却ファン２３による空気流が電池パック１４
に向くように取り付けられる。この取付部３３には、背
後側に給気孔３４が形成され、正面側に送風孔３５が形
成される。前記実施例におけるスイッチ２１、および電
圧検出回路３２などは前記実施例と同様に用いられる。FIG. 4 shows a charger 11a according to another embodiment of the present invention.
FIG. This embodiment is similar to the above-described embodiment, and corresponding parts are designated by the same reference numerals. The feature of this embodiment is that the heat pipe 24 in the first embodiment is not used, and the air flow from the cooling fan 23 is made to directly collide with the battery pack 14. That is, the housing 12 is provided with the mounting portion 33, and the cooling fan 23 allows the airflow from the cooling fan 23 to be applied to the battery pack 14.
It is attached to face. An air supply hole 34 is formed on the rear side of the mounting portion 33, and a blower hole 35 is formed on the front side thereof. The switch 21, the voltage detection circuit 32 and the like in the above embodiment are used in the same manner as in the above embodiment.
【００１５】このような実施例によっても、前述の実施
例で述べた効果と同様な効果を実現することができる。With this embodiment, the same effects as those described in the above embodiments can be realized.
【００１６】前記各実施例において、スイッチ２１の設
置箇所は、凹所１３の内壁２８に限らず、凹所１３の底
部でもよい。また、電池パック１４の凹所１３への装着
を検出する構成は、前記２接点のスイッチ２１に限らな
い。さらに、電池パック１４の冷却手段も、前記冷却フ
ァン２３やヒ−トパイプ２４に限るものではない。In each of the above-described embodiments, the installation location of the switch 21 is not limited to the inner wall 28 of the recess 13 and may be the bottom of the recess 13. The configuration for detecting the attachment of the battery pack 14 to the recess 13 is not limited to the two-contact switch 21. Further, the cooling means for the battery pack 14 is not limited to the cooling fan 23 or the heat pipe 24.
【００１７】[0017]
【発明の効果】以上のように本発明に従えば、充電器の
ハウジングに充電可能な電池を装着して充電を行うに際
して、電池は整流手段からの、予め定めるレベルの直流
電流によって充電される。このとき、ハウジングには冷
却手段が装着されていて、前記充電可能な電池を冷却す
る。従って、電池は充電を行っている機関に亘り、冷却
されるので、充電に伴う電池の発熱によって、電池の特
性が変化し電池の寿命が短くなる事態を防止することが
でき、電池の長寿命化を図ることができる。As described above, according to the present invention, when the rechargeable battery is mounted in the housing of the charger for charging, the battery is charged by the direct current of the predetermined level from the rectifying means. . At this time, a cooling means is attached to the housing to cool the rechargeable battery. Therefore, since the battery is cooled down over the engine that is charging, it is possible to prevent a situation in which the battery characteristics change due to heat generation of the battery due to charging and the battery life is shortened. Can be realized.
【図１】本発明の一実施例の充電器１１の断面図であ
る。FIG. 1 is a sectional view of a charger 11 according to an embodiment of the present invention.
【図２】充電器１１のハウジング１２の一部分の断面図
である。FIG. 2 is a cross-sectional view of a portion of the housing 12 of the charger 11.
【図３】充電器１１の電気的構成を示す回路図である。FIG. 3 is a circuit diagram showing an electrical configuration of a charger 11.
【図４】本発明の他の実施例の充電器１１ａの断面図で
ある。FIG. 4 is a sectional view of a charger 11a according to another embodiment of the present invention.
【図５】従来の充電器１の断面図である。FIG. 5 is a sectional view of a conventional charger 1.
１１ 充電器 １２ ハウジング １３ 凹所 １４ 電池パック １５ 整流回路 １７，１７；１８，１８ 端子 ２１ スイッチ ２２ モ−タ ２３ 冷却ファン ２４ ヒ−トパイプ 11 Charger 12 Housing 13 Recess 14 Battery pack 15 Rectifier circuit 17, 17; 18, 18 Terminal 21 Switch 22 Motor 23 Cooling fan 24 Heat pipe
Claims (1)
直流電流を出力可能な整流手段と、 整流手段を収納するハウジングと、 ハウジングに装着され、前記整流手段からの出力によっ
て充電される充電可能な電池を冷却する冷却手段とを含
むことを特徴とする充電器。1. A rectifying means that is connected to an AC power source and can output a direct current of a predetermined level, a housing that houses the rectifying means, and a housing that is mounted on the housing and that is charged by the output from the rectifying means. And a cooling means for cooling the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29407092A JPH06150978A (en) | 1992-11-02 | 1992-11-02 | Charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29407092A JPH06150978A (en) | 1992-11-02 | 1992-11-02 | Charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06150978A true JPH06150978A (en) | 1994-05-31 |
Family
ID=17802900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29407092A Pending JPH06150978A (en) | 1992-11-02 | 1992-11-02 | Charger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06150978A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11288744A (en) * | 1998-03-05 | 1999-10-19 | Black & Decker Inc | Cordless power tool, removable battery pack, charger, auxiliary fluid transfer device and temperature change mechanism of battery pack |
| US6342773B2 (en) | 1997-11-25 | 2002-01-29 | Matsushita Electric Works, Ltd. | Charger |
| US6537694B1 (en) | 1998-10-15 | 2003-03-25 | Makita Corporation | Battery pack with improved heat radiation and sealing |
| US7375967B2 (en) * | 2005-04-15 | 2008-05-20 | High Tech Computer, Corp. | Portable electronic device and heat-dissipation method and battery charger thereof |
| US7429430B2 (en) | 1999-06-01 | 2008-09-30 | Black & Decker Inc. | Cordless power tool battery release mechanism |
| USRE40848E1 (en) | 1994-06-10 | 2009-07-14 | Pitzen James F | Combination rechargeable, detachable battery system and power tool |
-
1992
- 1992-11-02 JP JP29407092A patent/JPH06150978A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE40848E1 (en) | 1994-06-10 | 2009-07-14 | Pitzen James F | Combination rechargeable, detachable battery system and power tool |
| US6342773B2 (en) | 1997-11-25 | 2002-01-29 | Matsushita Electric Works, Ltd. | Charger |
| US7014945B2 (en) | 1998-03-05 | 2006-03-21 | Black & Decker Inc. | Battery cooling system |
| US7056616B2 (en) | 1998-03-05 | 2006-06-06 | Black & Decker Inc. | Battery cooling system |
| EP1178556A3 (en) * | 1998-03-05 | 2003-12-03 | Black & Decker Inc. | Battery cooling system |
| EP1178557A3 (en) * | 1998-03-05 | 2003-12-03 | Black & Decker Inc. | Battery cooling system |
| EP1178559A3 (en) * | 1998-03-05 | 2003-12-17 | Black & Decker Inc. | Battery cooling system |
| US6949309B2 (en) | 1998-03-05 | 2005-09-27 | Black & Decker Inc. | Battery cooling system |
| JPH11288744A (en) * | 1998-03-05 | 1999-10-19 | Black & Decker Inc | Cordless power tool, removable battery pack, charger, auxiliary fluid transfer device and temperature change mechanism of battery pack |
| US7939193B2 (en) | 1998-03-05 | 2011-05-10 | Black & Decker Inc. | Battery cooling system |
| US7252904B2 (en) | 1998-03-05 | 2007-08-07 | Black & Decker Inc. | Battery cooling system |
| US7326490B2 (en) | 1998-03-05 | 2008-02-05 | Black & Decker Inc. | Battery cooling system |
| US6455186B1 (en) | 1998-03-05 | 2002-09-24 | Black & Decker Inc. | Battery cooling system |
| US6537694B1 (en) | 1998-10-15 | 2003-03-25 | Makita Corporation | Battery pack with improved heat radiation and sealing |
| US7429430B2 (en) | 1999-06-01 | 2008-09-30 | Black & Decker Inc. | Cordless power tool battery release mechanism |
| US7375967B2 (en) * | 2005-04-15 | 2008-05-20 | High Tech Computer, Corp. | Portable electronic device and heat-dissipation method and battery charger thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11925307B2 (en) | Rechargeable cleaner having body controller | |
| US10468891B2 (en) | Charger for vacuum cleaner and fast charging controlling method thereof | |
| KR100758868B1 (en) | Power supply apparatus for hybrid car | |
| CN109755987B (en) | Battery charging method, battery charger and charging combination | |
| US11980335B2 (en) | Rechargeable cleaner | |
| CN107710547A (en) | Charging device | |
| JPH11219733A (en) | Charging device | |
| CN110916253A (en) | Voltage output circuit and electronic cigarette | |
| WO2020187321A1 (en) | Power supply device | |
| JP3809601B2 (en) | Vacuum cleaner | |
| JP3198590B2 (en) | Charging device | |
| CN100500466C (en) | Automatic management method for air filter used in battery pack | |
| JPH06150978A (en) | Charger | |
| JPH11122829A (en) | Battery charger | |
| JP3780906B2 (en) | Charger | |
| JPH08185898A (en) | Cooling device for secondary battery | |
| JP3829477B2 (en) | Battery pack cooling device | |
| JPH0654209U (en) | Charging system | |
| JP4250785B2 (en) | Charger | |
| JPH08185899A (en) | Cooling device for secondary battery | |
| JP4341079B2 (en) | Charger | |
| JPS63262118A (en) | Cordless cleaner | |
| JP3414278B2 (en) | Battery powered electric vehicle | |
| JPH0660909A (en) | Discharger | |
| CN107359677B (en) | Detection device, system and car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20031209 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040127 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20040224 |