JP2000058138A - Battery charger with battery pack cooling function - Google Patents
Battery charger with battery pack cooling functionInfo
- Publication number
- JP2000058138A JP2000058138A JP22667198A JP22667198A JP2000058138A JP 2000058138 A JP2000058138 A JP 2000058138A JP 22667198 A JP22667198 A JP 22667198A JP 22667198 A JP22667198 A JP 22667198A JP 2000058138 A JP2000058138 A JP 2000058138A
- Authority
- JP
- Japan
- Prior art keywords
- cooling fan
- battery pack
- charge control
- battery
- air
- 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
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
Abstract
Description
【０００１】[0001]
【発明が属する技術分野】本発明は接続される電池パッ
クを強制的に冷却する冷却ファンを備えた電池パック冷
却機能付充電器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery pack cooling function provided with a cooling fan for forcibly cooling a connected battery pack.
【０００２】[0002]
【従来の技術】携帯用電気機器の電源としてニッケルカ
ドミウム電池やニッケル水素電池が広く使用されている
が、電池温度が６０℃〜７０℃程度を超える状態で充電
が行われると、充電末期に発生する酸素ガスの影響で電
池の構成材料が劣化し、内部短絡や容量低下等の故障が
発生し易くなる。この故障を防止するため、充電器は充
電時に電池温度が６０℃を超えたならば充電を停止する
よう制御していた。このため、周囲温度が高い場合には
充電時の電池の自己発熱によって満充電前に充電が停止
してしまうという問題、高負荷で電池パックを使用した
直後には電池温度が６０℃を超えてしまう確率が高く、
自然冷却により電池温度が下がるまでの長い時間充電を
開始できないという問題があったが、これらの問題を解
消するため、充電中に電池パックを強制空冷するように
冷却ファンを設けた充電器があった。このように電池パ
ックを強制的に冷却するようにした冷却機能付充電器の
一例を図２に示す。2. Description of the Related Art Nickel-cadmium batteries and nickel-metal hydride batteries are widely used as power sources for portable electric equipment. However, if the battery is charged in a state where the battery temperature exceeds about 60.degree. The constituent material of the battery is deteriorated by the influence of the generated oxygen gas, and failures such as an internal short circuit and a decrease in capacity are easily caused. In order to prevent this failure, the charger controls so as to stop charging if the battery temperature exceeds 60 ° C. during charging. For this reason, when the ambient temperature is high, the battery stops charging before full charge due to self-heating of the battery at the time of charging, and the battery temperature exceeds 60 ° C. immediately after using the battery pack under a high load. The probability of getting
There was a problem that charging could not be started for a long time until the battery temperature dropped due to natural cooling.However, in order to solve these problems, some chargers provided with a cooling fan to forcibly air-cool the battery pack during charging were available. Was. FIG. 2 shows an example of a charger with a cooling function for forcibly cooling the battery pack in this way.
【０００３】図において、複数の空気流入孔１４及び空
気流出孔１５を備えた電池パック２は上ケース３、下ケ
ース４、充電制御基板５、冷却ファン６からなる充電器
１に接続されている。下ケース４には冷却ファン６の空
気吸入孔８が、上ケース３には空気吐出孔９が設けられ
ており、冷却ファン６と充電制御基板５との間には熱遮
蔽壁３ａ、４ａが設けられた構成をしていた。充電器１
の電池挿入孔１０に電池パック２が装着されると、充電
制御基板５が電池接続を検出し冷却ファン６が駆動し、
空気吸入孔８→空気吐出孔９→空気流入孔１４→電池パ
ック２内部→空気流出孔１５の経路で空気が流れ、電池
パック１内部の複数の素電池１６が強制空冷される。な
お、充電制御基板５が電池パック２内の感温センサ１７
の温度を検出し、６０℃以下であれば充電開始し６０℃
以上であれば６０℃以下になるまで冷却してから充電を
開始する等の機能を備えた構成をしていた。In FIG. 1, a battery pack 2 having a plurality of air inlet holes 14 and air outlet holes 15 is connected to a charger 1 including an upper case 3, a lower case 4, a charge control board 5, and a cooling fan 6. . The lower case 4 is provided with an air intake hole 8 of a cooling fan 6, and the upper case 3 is provided with an air discharge hole 9. Heat shielding walls 3 a, 4 a are provided between the cooling fan 6 and the charge control board 5. It had a configuration provided. Charger 1
When the battery pack 2 is mounted in the battery insertion hole 10 of the above, the charge control board 5 detects the battery connection and the cooling fan 6 is driven,
Air flows through the path of the air suction hole 8 → the air discharge hole 9 → the air inflow hole 14 → the inside of the battery pack 2 → the air outflow hole 15, and the plurality of cells 16 inside the battery pack 1 are forcibly air cooled. The charge control board 5 is connected to the temperature sensor 17 in the battery pack 2.
Temperature is detected, and charging is started if the temperature is 60 ° C or less, and
If the above is the case, the configuration is provided with a function of starting charging after cooling to 60 ° C. or less.
【０００４】[0004]
【発明が解決しようとする課題】上記したような構成と
したことにより、電池温度が急激に上昇してしまうこと
を防ぎ、満充電前に充電が停止してしまうことを防止す
ることができると共に、高負荷で使用した直後の電池パ
ックであってもすぐさま充電を開始することができるよ
うになるが、しかしながら従来の充電器は、充電制御基
板５が電池パック１の充電中に発生する熱を冷却ファン
６により電池パック１内に吐出してしまうことがないよ
うに冷却ファン６の下方に充電制御基板５が位置しない
ように充電制御基板５の形状を規制しなければならない
という欠点があった。すなわち、冷却ファン６の面積に
相当する分だけ基板５の利用不可能な面積が発生し充電
制御基板５を大型としてしまい、充電器１を大型化して
しまうという欠点があった。本発明の目的は、上記した
従来の欠点を解消し、充電制御基板及び充電器の小型化
を図ることのできる電池パック冷却機能付充電器を提供
することである。With the above-described configuration, it is possible to prevent the battery temperature from rising rapidly and to prevent the charging from being stopped before the full charge. However, even if the battery pack is used immediately after being used under a high load, charging can be started immediately. However, in the conventional charger, the charge control board 5 dissipates heat generated during charging of the battery pack 1. There is a drawback that the shape of the charge control board 5 must be regulated so that the charge control board 5 is not located below the cooling fan 6 so that the charge control board 5 is not discharged into the battery pack 1 by the cooling fan 6. . In other words, there is a disadvantage that an unusable area of the board 5 is generated by an amount corresponding to the area of the cooling fan 6, and the charge control board 5 is enlarged, and the charger 1 is enlarged. An object of the present invention is to provide a battery charger with a battery pack cooling function which can solve the conventional drawbacks described above and can reduce the size of the charge control board and the battery charger.
【０００５】[0005]
【課題を解決するための手段】上記目的は、冷却ファン
を充電制御基板よりも上ケース側に設けると共に、上ケ
ースに冷却ファンと外気とを連通させる空気吸入孔を設
けることにより達成される。The above object is achieved by providing a cooling fan on the upper case side of the charge control board and providing an air suction hole in the upper case for communicating the cooling fan with the outside air.
【０００６】[0006]
【発明の実施の形態】本発明電池パック冷却機能付充電
器の一実施形態を図１に示す。充電器１は上ケース３、
下ケース４、充電制御基板５、冷却ファン６、熱遮蔽蓋
７等から構成されている。上ケース３には電池挿入孔１
０と、遮蔽壁３ａ等から形成され冷却ファン６を収納す
る収納部１１とが設けられており、収納部１１には冷却
ファン６と外気とを連通させる空気吸入孔８、電池パッ
ク２の空気流入孔１４と連通可能な空気吐出孔９が設け
られている。収納部１１の下方には、充電制御基板５が
発生する熱が冷却ファン６により電池パック２内部に吐
出することがないようにするために、冷却ファン６と充
電制御基板５とを隔離する遮蔽蓋７が設けられている。
なお、充電制御基板５には、電池挿入孔１０に装着され
た電池パック２の充放電端子２ａ、２ｂ及び電池パック
２内部に設けられた感温センサ１７と接続されている感
温端子２ｃと接続される充電端子５ａ、５ｂ及び感温端
子５ｃが設けられている。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of the battery pack cooling function charger of the present invention. Charger 1 is upper case 3,
It comprises a lower case 4, a charge control board 5, a cooling fan 6, a heat shielding lid 7, and the like. The upper case 3 has a battery insertion hole 1
0, and a storage portion 11 formed of a shielding wall 3a or the like and storing the cooling fan 6 is provided. The storage portion 11 has an air intake hole 8 for communicating the cooling fan 6 with the outside air, An air discharge hole 9 that can communicate with the inflow hole 14 is provided. In order to prevent the heat generated by the charge control board 5 from being discharged into the battery pack 2 by the cooling fan 6, a shield for isolating the cooling fan 6 from the charge control board 5 is provided below the storage unit 11. A lid 7 is provided.
The charge control board 5 includes charge / discharge terminals 2a and 2b of the battery pack 2 mounted in the battery insertion hole 10 and a temperature-sensitive terminal 2c connected to a temperature-sensitive sensor 17 provided inside the battery pack 2. Charge terminals 5a and 5b and a temperature-sensitive terminal 5c to be connected are provided.
【０００７】充電器１の電池挿入孔１０に電池パック２
が装着されると、電池パック２の充放電端子２ａ、２ｂ
及び感温端子２ｃと充電制御基板５の充電端子５ａ、５
ｂ及び感温端子５ｃとが接続し、充電制御基板５が電池
接続を検出して冷却ファン６が駆動する。冷却ファン６
により、空気吸入孔８→空気吐出孔９→空気流入孔１４
→電池パック２内部→流出孔１５の経路で空気が流れ、
電池パック２内部の複数の素電池１６が強制空冷され
る。充電制御基板５が電池パック２内の感温センサ１７
の温度を検出し、電池温度が６０℃以下であれば充電を
開始し、６０℃以上であれば６０℃以下になるまで冷却
ファン６により冷却してから充電を開始する。The battery pack 2 is inserted into the battery insertion hole 10 of the charger 1.
Is mounted, the charging / discharging terminals 2a, 2b of the battery pack 2
And the temperature sensing terminal 2c and the charging terminals 5a, 5a of the charging control board 5.
b and the temperature sensing terminal 5c are connected, the charge control board 5 detects the battery connection, and the cooling fan 6 is driven. Cooling fan 6
As a result, the air suction hole 8 → the air discharge hole 9 → the air inflow hole 14
→ inside the battery pack 2 → air flows through the path of the outlet hole 15,
The plurality of cells 16 inside the battery pack 2 are forcibly air-cooled. The charge control board 5 is connected to the temperature sensor 17 in the battery pack 2.
If the battery temperature is 60 ° C. or lower, charging is started. If the battery temperature is 60 ° C. or higher, charging is started after cooling by the cooling fan 6 until the battery temperature becomes 60 ° C. or lower.
【０００８】なお、充電制御基板５にはトランス、ダイ
オード、トランジスタ等の発熱部品が搭載されており充
電器内部は周囲温度よりも３０℃〜４０℃程度の高温に
なるが、遮蔽蓋７及び遮蔽壁３ａにより充電器１内の高
温の空気が電池パック２内に流入することはなく、常に
外気が電池パック２内に流入する構成となっている。ま
た、通常充電器１の使用周囲温度の上限値は４０℃であ
る。従って、風路及び冷却ファン６は電池温度の上昇値
が６０−４０＝２０（Ｋ）以下になるように設計されて
いる。The charging control board 5 is mounted with heat-generating components such as a transformer, a diode, and a transistor, and the inside of the charger becomes about 30 ° C. to 40 ° C. higher than the ambient temperature. The high temperature air in the charger 1 does not flow into the battery pack 2 due to the wall 3a, and the outside air always flows into the battery pack 2. In addition, the upper limit value of the operating ambient temperature of the normal charger 1 is 40 ° C. Therefore, the air passage and the cooling fan 6 are designed so that the rise value of the battery temperature is 60-40 = 20 (K) or less.
【０００９】上記したように、冷却ファン６を充電制御
基板５よりも上ケース３側に設けると共に、上ケース３
に冷却ファン６と外気とを連通させる空気吸入孔８を設
けた構成としたので、充電制御基板５及び充電器１を小
型化することができるようになる。As described above, the cooling fan 6 is provided closer to the upper case 3 than the charge control board 5 and
Is provided with an air suction hole 8 for communicating the cooling fan 6 with the outside air, so that the charge control board 5 and the charger 1 can be reduced in size.
【００１０】なお、上記実施形態では、上ケース３下側
に冷却ファン６及び遮蔽壁７を設けた構成としたが、例
えば上ケース３上に冷却ファン６を載置するような構成
であっても良い。In the above embodiment, the cooling fan 6 and the shielding wall 7 are provided below the upper case 3. However, for example, the cooling fan 6 is mounted on the upper case 3. Is also good.
【００１１】[0011]
【発明の効果】本発明によれば、冷却ファンを充電制御
基板よりも上ケース側に設けると共に、上ケースに冷却
ファンと外気とを連通させる空気吸入孔を設けた構成と
したので、充電制御基板及び充電器の小型化を図ること
のできる電池パック冷却機能付充電器を提供することが
できるようになる。According to the present invention, the cooling fan is provided on the upper case side of the charge control board, and the upper case is provided with the air suction hole for communicating the cooling fan with the outside air. It is possible to provide a battery pack cooling function-equipped charger capable of reducing the size of the board and the charger.
【図１】本発明電池パック冷却機能付充電器の一実施形
態を示す要部断面図。FIG. 1 is a sectional view of a main part showing an embodiment of a battery pack cooling function charger of the present invention.
【図２】従来の充電器の一例を示す断面図。FIG. 2 is a sectional view showing an example of a conventional charger.
１は充電器、２は電池パック、３は上ケース、４は下ケ
ース、５は充電制御基板、６は冷却ファン、７は遮蔽
蓋、８は空気吸入孔、９は空気吐出孔、１０は電池パッ
ク挿入孔である。1 is a charger, 2 is a battery pack, 3 is an upper case, 4 is a lower case, 5 is a charge control board, 6 is a cooling fan, 7 is a shielding lid, 8 is an air intake hole, 9 is an air discharge hole, and 10 is an air discharge hole. This is a battery pack insertion hole.
Claims (1)
パックを装着する電池パック挿入孔及び、電池パックの
空気流入孔と連通可能な空気吐出孔を有する上ケース
と、上ケースと下ケースとの間に電池パックの充電を制
御する充電制御基板及び冷却ファンとを備えた充電器で
あって、 前記冷却ファンを充電制御基板よりも上ケース側に設け
ると共に、上ケースに冷却ファンと外気とを連通させる
空気吸入孔を設けたことを特徴とする電池パック冷却機
能付充電器。An upper case having a battery pack insertion hole for mounting a battery pack having a plurality of air inflow and outflow holes, and an air discharge hole capable of communicating with the air inflow hole of the battery pack, an upper case and a lower case. A charging control board for controlling the charging of the battery pack and a cooling fan, wherein the cooling fan is provided on the upper case side relative to the charge control board, and the cooling fan and the outside air are provided on the upper case. A battery charger with a battery pack cooling function, characterized by having an air suction hole for communicating with the battery pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22667198A JP3829487B2 (en) | 1998-08-11 | 1998-08-11 | Battery pack cooling function charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22667198A JP3829487B2 (en) | 1998-08-11 | 1998-08-11 | Battery pack cooling function charger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000058138A true JP2000058138A (en) | 2000-02-25 |
| JP3829487B2 JP3829487B2 (en) | 2006-10-04 |
Family
ID=16848841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22667198A Expired - Fee Related JP3829487B2 (en) | 1998-08-11 | 1998-08-11 | Battery pack cooling function charger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3829487B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004282895A (en) * | 2003-03-14 | 2004-10-07 | Hitachi Koki Co Ltd | Direct-current power supply unit provided with charging function |
| JP2007300730A (en) * | 2006-04-28 | 2007-11-15 | Hitachi Koki Co Ltd | Battery charger |
| JP2012216346A (en) * | 2011-03-31 | 2012-11-08 | Kojima Press Industry Co Ltd | Battery mounting structure |
| DE102018204761A1 (en) * | 2018-03-28 | 2019-10-02 | Robert Bosch Gmbh | loader |
-
1998
- 1998-08-11 JP JP22667198A patent/JP3829487B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004282895A (en) * | 2003-03-14 | 2004-10-07 | Hitachi Koki Co Ltd | Direct-current power supply unit provided with charging function |
| JP2007300730A (en) * | 2006-04-28 | 2007-11-15 | Hitachi Koki Co Ltd | Battery charger |
| JP4618561B2 (en) * | 2006-04-28 | 2011-01-26 | 日立工機株式会社 | Battery charger |
| US7956575B2 (en) | 2006-04-28 | 2011-06-07 | Hitachi Koki Co., Ltd. | Charging device for battery |
| JP2012216346A (en) * | 2011-03-31 | 2012-11-08 | Kojima Press Industry Co Ltd | Battery mounting structure |
| DE102018204761A1 (en) * | 2018-03-28 | 2019-10-02 | Robert Bosch Gmbh | loader |
| US11495844B2 (en) | 2018-03-28 | 2022-11-08 | Robert Bosch Gmbh | Charging device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3829487B2 (en) | 2006-10-04 |
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