JPH04109829A - Charger - Google Patents

Charger

Info

Publication number
JPH04109829A
JPH04109829A JP2227660A JP22766090A JPH04109829A JP H04109829 A JPH04109829 A JP H04109829A JP 2227660 A JP2227660 A JP 2227660A JP 22766090 A JP22766090 A JP 22766090A JP H04109829 A JPH04109829 A JP H04109829A
Authority
JP
Japan
Prior art keywords
charging
remaining capacity
constant current
circuit
rechargeable battery
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
Application number
JP2227660A
Other languages
Japanese (ja)
Inventor
Satoru Inakagata
悟 田舎片
Koji Yamashita
耕司 山下
Kazuhiro Honda
和博 本田
Koji Kobayashi
浩治 小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP2227660A priority Critical patent/JPH04109829A/en
Publication of JPH04109829A publication Critical patent/JPH04109829A/en
Pending legal-status Critical Current

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

PURPOSE:To equalize the charging time of respective chargeable batteries, when a plurality of chargeable batteries are charged, by determining a charging current value corresponding to the residual capacity of each chargeable battery determined through a residual capacity recognizing circuit and then controlling a constant current circuit. CONSTITUTION:Residual capacity recognizing circuits 621-62n operate the discharged capacities when charging sections 61-6n are connected with loads. A CPU 7 receives residual capacity signals from the residual capacity recognizing circuits 621-62n and outputs signals for controlling constant current circuits 51-5n. In other words, charging current is regulated so that the plurality of chargeable batteries 611-61n finish charging operation at same time point.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、複数個の充電池を充電することのできる充電
器に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a charger capable of charging a plurality of rechargeable batteries.

[従来の技術〕 従来、この種の充電器は、第2図に示すように、電源1
から定電流回路2□〜2.、を通して、充電部3.〜3
.内の充電池31.〜31.に充電するようになってい
る。電源l、定電流回路2〜汎及び充電池31.〜31
.はケース4に収納され、さらに充電部3.〜3..は
ケース4がら取り外し可能に設置されている。充電部3
1〜3゜を各々ケース4に取り付け、電源lがら定電流
回路2、〜2..を介して、各充電部31〜3、の2次
電池としての充電池31.〜31゜に充電を行い、充電
完了後、各充電部31〜3oをケースから取り外し充電
部31〜3イの端子321〜32゜から負荷(@示せず
)へ電源を供給するのである。
[Prior art] Conventionally, this type of charger has a power source 1, as shown in Fig. 2.
From constant current circuit 2□~2. , through the charging section 3. ~3
.. Rechargeable battery inside 31. ~31. It is designed to be charged. Power source 1, constant current circuit 2 to general circuit, and rechargeable battery 31. ~31
.. is housed in the case 4, and the charging section 3. ~3. .. is installed removably from the case 4. Charging part 3
1 to 3 degrees respectively to the case 4, and the constant current circuits 2, to 2. .. A rechargeable battery 31. as a secondary battery of each charging unit 31-3 is connected to the rechargeable battery 31. After charging is completed, each charging section 31-3o is removed from the case and power is supplied from the terminals 321-32° of the charging section 31-3o to a load (not shown).

〔発明か解決しようとする課題〕[Invention or problem to be solved]

ところか、上述の充電器で複数の充電部31〜3、内の
充電池31.〜31゜に充電を行う際、定電流回路2、
〜26からの充電電流は一定であるので、充電前に残っ
ている各充電池311〜31、、の残容量(その時点で
充電池に残っている容量)か一定でない場合は、各充電
池31.〜31゜への充電時間か一定にならない。つま
り、残容量の少ないものは充電に時間かかかり、残容量
の多いものは充電か速く終了するということになり、ト
ータルとしての充電時間は、最も残容量の少ないものに
左右され、充電効率か悪いという問題点があった。
However, in the above-mentioned charger, the rechargeable batteries 31. When charging at ~31°, constant current circuit 2,
Since the charging current from ~26 is constant, if the remaining capacity of each rechargeable battery 311~31, , before charging (the capacity remaining in the rechargeable battery at that time) is not constant, each rechargeable battery 31. The charging time to ~31° is not constant. In other words, a device with low remaining capacity will take a long time to charge, and a device with a large remaining capacity will finish charging quickly.The total charging time will depend on the device with the lowest remaining capacity, and will depend on the charging efficiency. There was a problem with it being bad.

本発明は、上記の点に鑑みてなしたものであり、その目
的とするところは、複数の充電池を充電する場合に、各
充電池への充電時間を等しくすることのできる充電器を
提供することにある。
The present invention has been made in view of the above points, and its purpose is to provide a charger that can equalize the charging time for each rechargeable battery when charging a plurality of rechargeable batteries. It's about doing.

〔課題を解決するための手段〕[Means to solve the problem]

本発明は、複数の定電流回路と、前記定電流回路からの
充電電流により充電池に充電を行う複数の充電部かケー
ス内に収納され、さらに前記充電部か前記ケースに取り
外し可能に設置されてなる充電器において、前記定電流
回路として、充電電流の値が割部可能なものを用い、前
記充電部内に充電開始前の充電池内の残容量を求め残容
量信号を出力する残容量認識回路、及び、前記残容量認
識回路からの残容量信号から前記定電流回路の充電電流
値を求め、前記定電流回路を制御すへく制御信号を出力
するCPUを具備することを特徴としたものである。
The present invention includes a plurality of constant current circuits, and a plurality of charging parts that charge a rechargeable battery using charging current from the constant current circuits, which are housed in a case, and further, the charging parts are removably installed in the case. In the charger, the constant current circuit is a circuit that can divide the value of the charging current, and the charging unit includes a remaining capacity recognition circuit that determines the remaining capacity in the rechargeable battery before starting charging and outputs a remaining capacity signal. and a CPU that determines the charging current value of the constant current circuit from the remaining capacity signal from the remaining capacity recognition circuit and outputs a control signal to control the constant current circuit. be.

〔作用〕[Effect]

本発明の充電器にあっては、ケース内に取り外し可能に
設置された複数の充電部内に具備した残容量認識回路に
より、充電すべき充電池の残容量を求め、CPUては、
前記残容量認識回路で求めた各充電池の残容量に応じた
充電電流値を決定し、定電流回路を制御しているのであ
る。
In the charger of the present invention, the remaining capacity of the rechargeable battery to be charged is determined by the remaining capacity recognition circuit provided in the plurality of charging parts removably installed in the case, and the CPU calculates the remaining capacity of the rechargeable battery to be charged.
The charging current value is determined according to the remaining capacity of each rechargeable battery determined by the remaining capacity recognition circuit, and the constant current circuit is controlled.

〔実施例〕〔Example〕

以下、本発明の一実施例を図面に基づき説明する。第1
図は、本発明の一実施例を示すブロック図である。51
〜5oは定電流回路であり、電源lからの電源供給によ
り、充電電流を出力する。
Hereinafter, one embodiment of the present invention will be described based on the drawings. 1st
The figure is a block diagram showing one embodiment of the present invention. 51
~5o is a constant current circuit, which outputs a charging current by supplying power from the power source l.

この充電電流値は、後述のCPUからの制御信号により
決められる。6.〜6..はケース4に取り外し可能に
設置された充電部であり、定電流回路51〜57からの
充電電流により充電される2次電池としての充電池61
.〜61.と、各充電池61+〜61.の残容量を求め
、後述のCPUにデジタル信号としての残容量信号を送
出する残容量認識回路62.〜62.と、その時点充電
電流を検出するための抵抗63、〜63□、及び負荷(
図示せず)に接続するための端子641〜64゜とから
なっている。
This charging current value is determined by a control signal from the CPU, which will be described later. 6. ~6. .. is a charging unit that is removably installed in the case 4, and includes a rechargeable battery 61 as a secondary battery that is charged by charging current from constant current circuits 51 to 57.
.. ~61. and each rechargeable battery 61+ to 61. Remaining capacity recognition circuit 62. calculates the remaining capacity of , and sends a remaining capacity signal as a digital signal to the CPU, which will be described later. ~62. , resistors 63 to 63□ for detecting the charging current at that time, and a load (
(not shown) and terminals 641 to 64°.

ここで、充電池611〜61.の残容量は、充電電流と
充電に要した時間との積(充電容量)がら負荷電流と負
荷電流を流した時間との積(放電容量)を引いた値とし
て求められる。従って、残容量認識回路62.〜624
は、充電部6.〜64を負荷に接続している間、つまり
2次電池として使用している間、放電容量を演算してお
くのである。7はCPUて、残容量認識回路62+〜6
2゜からの残容量信号を受けて定電流回路51〜5゜の
電流値を制御するための制御信号を出力する。
Here, rechargeable batteries 611 to 61. The remaining capacity of the battery is determined by subtracting the product of the load current and the time during which the load current is applied (discharge capacity) from the product of the charging current and the time required for charging (charging capacity). Therefore, the remaining capacity recognition circuit 62. ~624
is the charging part 6. 64 is connected to a load, that is, while it is being used as a secondary battery, the discharge capacity is calculated. 7 is the CPU and remaining capacity recognition circuit 62+~6
In response to the remaining capacity signal from 2°, it outputs a control signal for controlling the current value of the constant current circuits 51 to 5°.

つまり、複数の各充電池611〜61fiが同じ時間で
充電が終了するように充it流を調整するのである。例
えば、今2個の充電部6,62を充電する際、充電部6
.の充電池61□の残容量か20%、充電部62の充電
池61□の残容量か80%であったとすると、定電流回
路5□の方をトータルの充電電流の80%の電流値に、
定電流回路52の方をトータルの充電電流の20%の電
流値に設定するのである。
In other words, the charging flow is adjusted so that charging of each of the plurality of rechargeable batteries 611 to 61fi is completed in the same amount of time. For example, when charging the two charging parts 6 and 62, the charging part 6
.. If the remaining capacity of the rechargeable battery 61□ in the charging section 62 is 20%, and the remaining capacity of the rechargeable battery 61□ in the charging section 62 is 80%, then the constant current circuit 5□ is set to a current value of 80% of the total charging current. ,
The constant current circuit 52 is set to a current value of 20% of the total charging current.

8はD/Aコンバータて、CPU7から出力されるデジ
タルの制御信号をアナログ信号に変換し、各定電流回路
5.〜5oに制御信号を送るのである。4はケースで、
以上の各回路等を収納するものである。ただし、充電部
6.〜6、は取り外し可能に収納しである。
A D/A converter 8 converts the digital control signal output from the CPU 7 into an analog signal, and connects each constant current circuit 5. It sends a control signal to ~5o. 4 is the case,
It houses each of the circuits mentioned above. However, charging part 6. -6 are removably stored.

〔発明の効果〕〔Effect of the invention〕

以上のように、本発明によれば、ケース内に取り外し可
能に設置された複数の充電部内に具備した残容量認識回
路により、充電すべき充電池の残容量を求め、CPUで
は、前記残容量認識回路て求めた各充電池の残容量に応
じた充電電流値を決定し、定電流回路を制御するように
したので、複数の充電池を充電する場合に、各充電池へ
の充電時間を等しくすることのてきる充電器を提供する
ことかできた。
As described above, according to the present invention, the remaining capacity of the rechargeable battery to be charged is determined by the remaining capacity recognition circuit included in the plurality of charging units removably installed in the case, and the CPU determines the remaining capacity of the rechargeable battery to be charged. Since the charging current value is determined according to the remaining capacity of each rechargeable battery determined by the recognition circuit and the constant current circuit is controlled, when charging multiple rechargeable batteries, the charging time for each rechargeable battery can be adjusted. We were able to provide a charger that can do the same thing.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、本発明の一実施例を示すブロック図、第2図
は、従来例を示すブロック図、 1・−電源       ・4−ケース51〜5.一定
電流回路 61〜6o1.充電部7−・−CP U  
      8−D/Aコンバータ61+〜61.−充
電池 621〜62o−残容量認識回路 631〜63.、−・抵抗  641〜64n一端子特
許出願人  松下電工株式会社 代理人    弁理士 佐原 成示(ほか1名)第2図
FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional example. 1. - Power supply 4. Cases 51 to 5. Constant current circuit 61-6o1. Charging part 7--CPU
8-D/A converter 61+ to 61. - Rechargeable batteries 621 to 62o - Remaining capacity recognition circuits 631 to 63. , - Resistor 641~64n One terminal patent applicant Matsushita Electric Works Co., Ltd. agent Patent attorney Shigeji Sahara (and one other person) Figure 2

Claims (1)

【特許請求の範囲】[Claims] (1)複数の定電流回路と、前記定電流回路からの充電
電流により充電池に充電を行う複数の充電部がケース内
に収納され、さらに前記充電部が前記ケースに取り外し
可能に設置されてなる充電器において、前記定電流回路
として、充電電流の値が制御可能なものを用い、前記充
電部内に充電開始前の充電池内の残容量を求め残容量信
号を出力する残容量認識回路、及び、前記残容量認識回
路からの残容量信号から前記定電流回路の充電電流値を
求め、前記定電流回路を制御すべく制御信号を出力する
CPUを具備することを特徴とした充電器。
(1) A plurality of constant current circuits and a plurality of charging parts that charge a rechargeable battery using charging current from the constant current circuits are housed in a case, and the charging parts are removably installed in the case. In the charger, a circuit capable of controlling the value of charging current is used as the constant current circuit, and a remaining capacity recognition circuit that determines the remaining capacity in the rechargeable battery before starting charging and outputs a remaining capacity signal in the charging unit; A charger comprising: a CPU that calculates a charging current value of the constant current circuit from a remaining capacity signal from the remaining capacity recognition circuit and outputs a control signal to control the constant current circuit.
JP2227660A 1990-08-28 1990-08-28 Charger Pending JPH04109829A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2227660A JPH04109829A (en) 1990-08-28 1990-08-28 Charger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2227660A JPH04109829A (en) 1990-08-28 1990-08-28 Charger

Publications (1)

Publication Number Publication Date
JPH04109829A true JPH04109829A (en) 1992-04-10

Family

ID=16864343

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2227660A Pending JPH04109829A (en) 1990-08-28 1990-08-28 Charger

Country Status (1)

Country Link
JP (1) JPH04109829A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008061373A (en) * 2006-08-31 2008-03-13 Nagano Japan Radio Co Charging device
WO2009069480A1 (en) * 2007-11-26 2009-06-04 Toyota Jidosha Kabushiki Kaisha Power supply unit for vehicle
JP2011130575A (en) * 2009-12-17 2011-06-30 Mazda Motor Corp Method and system for charging battery
JP2020043749A (en) * 2018-09-07 2020-03-19 飛宏科技股▲ふん▼有限公司Phihong Technology Co., Ltd. Multiport intelligent charger

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008061373A (en) * 2006-08-31 2008-03-13 Nagano Japan Radio Co Charging device
WO2009069480A1 (en) * 2007-11-26 2009-06-04 Toyota Jidosha Kabushiki Kaisha Power supply unit for vehicle
JP2011130575A (en) * 2009-12-17 2011-06-30 Mazda Motor Corp Method and system for charging battery
JP2020043749A (en) * 2018-09-07 2020-03-19 飛宏科技股▲ふん▼有限公司Phihong Technology Co., Ltd. Multiport intelligent charger

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