JPH05111189A - Battery charging method - Google Patents

Battery charging method

Info

Publication number
JPH05111189A
JPH05111189A JP26348491A JP26348491A JPH05111189A JP H05111189 A JPH05111189 A JP H05111189A JP 26348491 A JP26348491 A JP 26348491A JP 26348491 A JP26348491 A JP 26348491A JP H05111189 A JPH05111189 A JP H05111189A
Authority
JP
Japan
Prior art keywords
load
battery
current
charging
operating state
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
JP26348491A
Other languages
Japanese (ja)
Inventor
Hiroaki Takemoto
寛明 武本
Original Assignee
Matsushita Electric Ind Co Ltd
松下電器産業株式会社
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 Ind Co Ltd, 松下電器産業株式会社 filed Critical Matsushita Electric Ind Co Ltd
Priority to JP26348491A priority Critical patent/JPH05111189A/en
Publication of JPH05111189A publication Critical patent/JPH05111189A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To utilize battery energy effectively by setting the current supply values of a load and a secondary battery under operating state of load higher than those under non-operating state of load and feeding current from the secondary battery to the load upon interruption of current supply thereto. CONSTITUTION:When a load 5 enters into operating state, a switch 7 is turned ON by an operation detecting signal on a signal line 6 and output currents from constant current supplies 2, 3 are added through an adding means, i.e., a diode OR circuit, comprising diodes 8, 9 to charge a secondary battery 4 and to feed a current to the load 5. When current supply from a charger l to the load 5 is interrupted, a current is fed directly from the secondary battery 4 to the load 5. Consequently, energy of the battery 4 can be utilized effectively.

Description

【発明の詳細な説明】Detailed Description of the Invention
【0001】[0001]
【産業上の利用分野】本発明は、負荷に電流を供給する
二次電池の充電方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a secondary battery charging method for supplying a current to a load.
【0002】[0002]
【従来の技術】図2に従来の充電方法によるフローティ
ング充電装置の構成のブロック図を示す。図2におい
て、10は二次電池を充電するとともに負荷に電流を供
給する充電器、4は二次電池、5は二次電池4から電流
の供給を受ける負荷、11は充電時の充電抵抗、12は
二次電池4と負荷5との間に設けられたダイオードであ
る。
2. Description of the Related Art FIG. 2 shows a block diagram of a structure of a floating charging device according to a conventional charging method. In FIG. 2, 10 is a charger that charges the secondary battery and supplies current to the load, 4 is the secondary battery, 5 is a load that is supplied with current from the secondary battery 4, 11 is charging resistance during charging, Reference numeral 12 is a diode provided between the secondary battery 4 and the load 5.
【0003】上記従来例によるフローティング充電は、
充電器10から負荷5に負荷電流を供給するとともに、
抵抗11を通して二次電池4を充電する。充電器10か
らの負荷電流が断たれた場合に、二次電池4からダイオ
ード12を通して負荷5に電流を供給する。
Floating charging according to the above conventional example is
While supplying the load current from the charger 10 to the load 5,
The secondary battery 4 is charged through the resistor 11. When the load current from the charger 10 is cut off, current is supplied from the secondary battery 4 to the load 5 through the diode 12.
【0004】[0004]
【発明が解決しようとする課題】しかしながら上記従来
例による方法では、充電電流の管理が不十分である上、
ダイオードを通して負荷に電流を供給するため、エネル
ギーのロスを生じ、特に携帯用機器においては大きな問
題があった。
However, in the method according to the above-mentioned conventional example, the management of the charging current is insufficient, and
Since the current is supplied to the load through the diode, energy loss occurs, which is a serious problem especially in portable devices.
【0005】本発明は上記従来の問題を解決するもので
あり、充電電流の管理が十分で、エネルギーのロスを生
じない、優れた充電方法を提供することを目的とする。
The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide an excellent charging method in which the management of the charging current is sufficient and energy loss does not occur.
【0006】[0006]
【課題を解決するための手段】負荷に直接接続された充
電可能な二次電池と、負荷に電流を供給するとともに、
二次電池に充電電流を供給する充電器とを備え、この充
電器は、負荷の動作状態を検知する手段を有し、負荷が
動作状態であるときは、負荷及び二次電池に供給する電
流値を、負荷が動作状態でないときの電流値より大とす
る構成である。
[Means for Solving the Problems] A rechargeable secondary battery directly connected to a load and supplying current to the load,
A charger for supplying a charging current to the secondary battery, the charger having means for detecting the operating state of the load, and the current supplied to the load and the secondary battery when the load is in the operating state. The value is larger than the current value when the load is not operating.
【0007】[0007]
【作用】上記構成により、負荷が動作状態であるか否か
を検知して、動作状態のときは、動作状態でないときよ
り負荷及び二次電池に供給する電流値を大とすることに
より、二次電池への充電電流を管理する効果が得られる
とともに、充電器から負荷への電流供給が断たれたとき
は、二次電池から負荷に直接電流を供給するので、電池
エネルギーを有効に利用できる効果が得られる。
With the above structure, whether or not the load is in the operating state is detected, and when the operating state is set, the current value supplied to the load and the secondary battery is made larger than that in the non-operating state. The effect of managing the charging current to the secondary battery can be obtained, and when the current supply from the charger to the load is cut off, the secondary battery supplies the current directly to the load, so battery energy can be used effectively. The effect is obtained.
【0008】[0008]
【実施例】以下、本発明による電池の充電方法の一実施
例を図1を参照して説明する。図1において、二次電池
4及び負荷5は図2と同じものである。また、1は二次
電池にフローティング充電を行う充電器、2及び3は充
電器1に設けられた第1及び第2の定電流源の回路、6
は負荷5が動作状態のとき動作検知信号を充電器1に与
える信号線、7は動作検知信号によりオンとなるスイッ
チ、8及び9は充電器1と二次電池4及び負荷5との間
に設けられたダイオードである。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a battery charging method according to the present invention will be described below with reference to FIG. In FIG. 1, the secondary battery 4 and the load 5 are the same as those in FIG. Further, 1 is a charger for performing floating charging on the secondary battery, 2 and 3 are circuits of first and second constant current sources provided in the charger 1, and 6
Is a signal line that gives an operation detection signal to the charger 1 when the load 5 is in an operating state, 7 is a switch that is turned on by the operation detection signal, and 8 and 9 are between the charger 1 and the secondary battery 4 and the load 5. It is a diode provided.
【0009】次に、上記図1に示す構成の動作について
説明する。負荷5が動作状態でないときは、定電流源2
からダイオード8を通して二次電池4に充電電流が供給
されて、二次電池4の通常の充電がなされる。この場合
にはスイッチ7はオフとなっており、定電流源3からは
充電電流は供給されない。
Next, the operation of the configuration shown in FIG. 1 will be described. When the load 5 is not operating, the constant current source 2
A charging current is supplied from the diode to the secondary battery 4 through the diode 8 to normally charge the secondary battery 4. In this case, the switch 7 is off, and no charging current is supplied from the constant current source 3.
【0010】負荷5が動作状態になると、信号線6から
の動作検知信号によりスイッチ7がオンとなり、定電流
源2及び3の双方からの出力電流が、ダイオード8及び
9で構成される加算手段としてのダイオードオア回路に
より、加算された電流が二次電池4を充電するととも
に、負荷5に負荷電流を供給する。また、充電器1から
負荷への負荷電流が断たれたときには、二次電池4から
直接負荷5に対して電流が供給されることになる。
When the load 5 is in the operating state, the switch 7 is turned on by the operation detection signal from the signal line 6, and the output currents from both the constant current sources 2 and 3 are added by the adding means constituted by the diodes 8 and 9. With the diode OR circuit as, the added current charges the secondary battery 4 and supplies the load current to the load 5. Further, when the load current from the charger 1 to the load is cut off, the current is directly supplied from the secondary battery 4 to the load 5.
【0011】なお、上記実施例においては、二次電池4
への充電は通常充電としたが、断続的に充電するトリク
ル充電や、二次電池が空の時等に一気に充電する急速充
電でも良い。さらに、二次電池4が満充電になった後
は、充電電流を停止するようにしても良い。また、定電
流源2及び3は、別個のものでなく同一のもので、負荷
の動作状態に応じて、出力する電流値を変えるようにし
ても良い。
In the above embodiment, the secondary battery 4
The charging is normally performed, but it may be trickle charging that is intermittently charged or rapid charging that is performed at a dash when the secondary battery is empty. Furthermore, the charging current may be stopped after the secondary battery 4 is fully charged. Further, the constant current sources 2 and 3 are not the same but the same, and the output current value may be changed according to the operating state of the load.
【0012】[0012]
【発明の効果】以上、上記実施例で明らかなように、本
発明によれば、フローティング充電においても、充電電
流を負荷の状態に応じて管理しつつ充電することができ
るという効果を有し、さらに、二次電池から負荷に直接
電源を供給できるので、エネルギーを有効に利用できる
という効果を有する。
As is apparent from the above embodiments, according to the present invention, even in floating charging, there is an effect that the charging current can be charged while being managed according to the state of the load. Further, since the power can be directly supplied to the load from the secondary battery, there is an effect that energy can be effectively used.
【図面の簡単な説明】[Brief description of drawings]
【図1】本発明の方法を用いた一実施例の構成を示すブ
ロック図
FIG. 1 is a block diagram showing the configuration of an embodiment using the method of the present invention.
【図2】従来例の構成を示すブロック図FIG. 2 is a block diagram showing a configuration of a conventional example.
【符号の説明】 1、10 充電器 2 第1の定電流源 3 第2の定電流源 4 二次電池 5 負荷 6 信号線 7 スイッチ 8、9、12 ダイオード 11 抵抗[Explanation of Codes] 1, 10 Charger 2 First constant current source 3 Second constant current source 4 Secondary battery 5 Load 6 Signal line 7 Switch 8, 9, 12 Diode 11 Resistance

Claims (4)

    【特許請求の範囲】[Claims]
  1. 【請求項1】負荷に直接接続された充電可能な二次電池
    と、前記負荷に電流を供給するとともに前記二次電池に
    充電電流を供給する充電器とを備え、 前記充電器は前記負荷の動作状態を検知する手段を有
    し、前記負荷が動作状態であるときは前記負荷及び二次
    電池に供給する電流値を前記負荷が動作状態でないとき
    の電流値より大とし、 前記充電器から前記負荷への電流供給が断たれたとき
    は、前記二次電池から前記負荷に電流を供給することを
    特徴とする電池の充電方法。
    1. A rechargeable secondary battery that is directly connected to a load, and a charger that supplies a current to the load and a charging current to the secondary battery. A means for detecting an operating state, when the load is in the operating state, the current value supplied to the load and the secondary battery is larger than the current value when the load is not in the operating state, A method of charging a battery, wherein when the current supply to the load is cut off, a current is supplied from the secondary battery to the load.
  2. 【請求項2】前記充電器は、前記負荷に電流を供給する
    とともに前記二次電池に充電電流を供給する第1の定電
    流源と、前記負荷が動作状態のときのみ前記負荷及び二
    次電池に電流を供給する第2の定電流源とを有すること
    を特徴とする請求項1記載の電池の充電方法。
    2. The charger includes a first constant current source that supplies a current to the load and a charging current to the secondary battery, and the load and the secondary battery only when the load is in an operating state. The battery charging method according to claim 1, further comprising: a second constant current source that supplies a current to the battery.
  3. 【請求項3】前記第1及び第2の定電流源の出力電流を
    加算して前記負荷及び二次電池に供給する加算手段と、
    前記負荷が動作状態でないときは前記加算手段への前記
    第2の定電流源からの出力電流を停止するスイッチとを
    備えたことを特徴とする請求項2記載の電池の充電方
    法。
    3. An adding means for adding output currents of the first and second constant current sources and supplying the added currents to the load and the secondary battery.
    3. The battery charging method according to claim 2, further comprising a switch for stopping the output current from the second constant current source to the adding means when the load is not in the operating state.
  4. 【請求項4】前記加算手段は、ダイオードオア回路であ
    ることを特徴とする請求項3記載の電池の充電方法。
    4. The battery charging method according to claim 3, wherein the adding means is a diode OR circuit.
JP26348491A 1991-10-11 1991-10-11 Battery charging method Pending JPH05111189A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26348491A JPH05111189A (en) 1991-10-11 1991-10-11 Battery charging method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26348491A JPH05111189A (en) 1991-10-11 1991-10-11 Battery charging method

Publications (1)

Publication Number Publication Date
JPH05111189A true JPH05111189A (en) 1993-04-30

Family

ID=17390155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26348491A Pending JPH05111189A (en) 1991-10-11 1991-10-11 Battery charging method

Country Status (1)

Country Link
JP (1) JPH05111189A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05164272A (en) * 1991-12-16 1993-06-29 Sekisui Chem Co Ltd Fire protection cover for piping sleeve
US8729868B2 (en) 2007-07-27 2014-05-20 Lenovo (Singapore) Pte. Ltd. Method and apparatus for charging batteries
JP2016025702A (en) * 2014-07-17 2016-02-08 ローム株式会社 Wireless power reception device, receiver circuit thereof and control method for wireless power reception device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS565494U (en) * 1979-06-28 1981-01-19
JPS6044447B2 (en) * 1980-09-02 1985-10-03 Taiyo Kogyo Co Ltd
JPH02219426A (en) * 1989-02-17 1990-09-03 Tokyo Electric Co Ltd Power circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS565494U (en) * 1979-06-28 1981-01-19
JPS6044447B2 (en) * 1980-09-02 1985-10-03 Taiyo Kogyo Co Ltd
JPH02219426A (en) * 1989-02-17 1990-09-03 Tokyo Electric Co Ltd Power circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05164272A (en) * 1991-12-16 1993-06-29 Sekisui Chem Co Ltd Fire protection cover for piping sleeve
US8729868B2 (en) 2007-07-27 2014-05-20 Lenovo (Singapore) Pte. Ltd. Method and apparatus for charging batteries
JP2016025702A (en) * 2014-07-17 2016-02-08 ローム株式会社 Wireless power reception device, receiver circuit thereof and control method for wireless power reception device

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