JPH11225445A - Intermittent charging method and intermittent charging circuit for secondary battery - Google Patents
Intermittent charging method and intermittent charging circuit for secondary batteryInfo
- Publication number
- JPH11225445A JPH11225445A JP10024455A JP2445598A JPH11225445A JP H11225445 A JPH11225445 A JP H11225445A JP 10024455 A JP10024455 A JP 10024455A JP 2445598 A JP2445598 A JP 2445598A JP H11225445 A JPH11225445 A JP H11225445A
- Authority
- JP
- Japan
- Prior art keywords
- charging
- battery pack
- battery
- charge
- detection circuit
- 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
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、無停電電源に関す
るものであり、ニッケル・カドミニウム電池、ニッケル
水素電池やリチウムイオン二次電池等の二次電池を予備
電力源とした装置における二次電池の間欠充電方法及び
回路に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an uninterruptible power supply, and relates to a secondary battery in an apparatus using a secondary battery such as a nickel-cadmium battery, a nickel-metal hydride battery or a lithium ion secondary battery as a standby power source. The present invention relates to an intermittent charging method and circuit.
【０００２】[0002]
【従来の技術】従来、バックアップ電源に用いられてい
るニッケル・カドミニウム電池などの二次電池はトリク
ル充電が行われている。このトリクル充電は常時微少電
流を流して充電を行う方式である。しかし、このトリク
ル充電は電池に常時電流を流しているために、電池にと
っては過充電状態が長時間続くことになり、電池の電解
液や電極板の劣化を進行し電池寿命が短くなるという問
題が発生する。このために、逆にトリクル充電によって
も劣化しにくいトリクル充電用電池を使用する必要があ
るが、サイクル用電池と比較して高価である。さらに、
ニッケル・カドミニウム電池よりも高エネルギー密度で
あるニッケル水素電池を使用する場合、トリクル充電の
方式はニッケル水素電池には不向きであるといった問題
がある。2. Description of the Related Art Conventionally, trickle charging is performed on a secondary battery such as a nickel-cadmium battery used as a backup power supply. This trickle charging is a method in which a minute current is always supplied to perform charging. However, this trickle charging always causes current to flow through the battery, so that the battery is overcharged for a long time, and the battery electrolyte and the electrode plate are deteriorated and the battery life is shortened. Occurs. For this reason, it is necessary to use a trickle charging battery which is unlikely to deteriorate even by trickle charging, but it is more expensive than a cycle battery. further,
When a nickel-metal hydride battery having a higher energy density than a nickel-cadmium battery is used, there is a problem that the trickle charging method is not suitable for a nickel-metal hydride battery.
【０００３】そこで、特願平７−２６８３４９号にもあ
るように、二次電池の満充電状態を維持する方法とし
て、電流を常時流して満充電状態を維持するのではな
く、満充電後に開回路状態にし、自己放電等によって低
下する電池容量を開回路電圧を測定することによって検
出し、ある容量まで低下した段階で充電を開始し、満充
電状態を回復させるといった動作を繰り返すことによる
間欠充電が提案されている。しかし、この方法では、充
電時において、満充電を検知する手段として、満充電に
対応した電圧で停止する手段を取っている。この方法
は、簡易な手段であるが、電池の温度や劣化などの状態
の影響を受けて、完全な充電、つまり満充電が達成され
ない恐れがある。Therefore, as disclosed in Japanese Patent Application No. Hei 7-268349, as a method of maintaining a fully charged state of a secondary battery, current is not always supplied to maintain the fully charged state, but the secondary battery is opened after full charge. Intermittent charging by repeating the operation of entering the circuit state, detecting the battery capacity that decreases due to self-discharge, etc. by measuring the open circuit voltage, starting charging when the capacity has dropped to a certain level, and restoring the fully charged state Has been proposed. However, in this method, means for stopping at a voltage corresponding to full charge is used as means for detecting full charge during charging. Although this method is a simple means, there is a possibility that complete charging, that is, full charging, may not be achieved under the influence of the state of the battery such as temperature and deterioration.
【０００４】[0004]
【発明が解決しようとする課題】本発明は上記の事情に
鑑みてなされたもので、間欠充電における充電期間にお
いて、満充電を確実に検出する二次電池の間欠充電方法
及び回路を提供することを目的とするものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides an intermittent charging method and circuit for a secondary battery that reliably detects full charge during a charging period in intermittent charging. It is intended for.
【０００５】[0005]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明では、間欠充電における充電期間におい
て、満充電を確実に検出する方法として以下の方式を用
いる。 （ａ）充電中の二次電池の満充電付近の電圧ピークの検
出による充電停止。In order to achieve the above object, the present invention uses the following method as a method for reliably detecting full charge during a charge period in intermittent charge. (A) Stop charging by detecting a voltage peak near full charge of the secondary battery being charged.
【０００６】（ｂ）満充電になるまでの時間による充電
停止。 （ｃ）充電中の二次電池の満充電付近の温度上昇の検出
による充電停止。 （ａ）の方式では、充電の末期に電池電圧が最大値に達
して、その後電圧が低下する現象を利用した充電停止方
法である。この方式は、温度変化に関わり無く満充電を
検出することができる。(B) Stop charging due to the time until the battery is fully charged. (C) Stop charging by detecting a temperature rise near full charge of the secondary battery being charged. The method (a) is a charging stop method that utilizes a phenomenon in which the battery voltage reaches a maximum value at the end of charging and then drops. This method can detect a full charge regardless of a temperature change.
【０００７】（ｂ）の方式では、充電開始前の電池の温
度に対応した充電時間を予め測定しておき、充電開始前
に測定した電池温度に対応する充電時間で充電を行うこ
とによって温度補正を行った充電の制御を行う。In the method (b), the charging time corresponding to the battery temperature before the start of charging is measured in advance, and charging is performed with the charging time corresponding to the battery temperature measured before the start of charging. Is performed.
【０００８】（ｃ）の方式では、充電の末期に電池温度
が上昇することを利用して、予め充電開始前の電池温度
とその電池が満充電になるときの温度を予め測定してお
き、充電開始前に測定した電池温度に対応する充電停止
温度に達した段階で、充電を停止させる制御を行う。In the method (c), the battery temperature before the start of charging and the temperature when the battery is fully charged are measured in advance by utilizing the fact that the battery temperature rises at the end of charging. At the stage where the charging stop temperature corresponding to the battery temperature measured before the start of charging is reached, control for stopping charging is performed.
【０００９】さらに、充電制御の信頼性を上げるため
に、上記の方式の内２つ、または全て組み合わせて充電
制御に使用することにより、一つの方式が万が一制御に
失敗しても他の方式により、安全に充電を停止すること
ができる。Furthermore, in order to improve the reliability of the charge control, two or all of the above-mentioned methods are used for charge control, so that even if one method fails in the control, the other method is used. The charging can be safely stopped.
【００１０】以上の充電停止方式を用いた間欠充電回路
を用いて、満充電で電池の充電を停止させることを特徴
とする。従来の技術とは、単に充電の電圧によって充電
を停止させる制御を行うのではなく、満充電時の電池電
圧の落ち込み、温度変化に対応した充電時間および充電
時の電池温度の特性を利用して、充電停止の制御を行う
点が異なる。[0010] The intermittent charging circuit using the above charging stop method is used to stop charging of the battery at full charge. With the conventional technology, instead of simply performing control to stop charging by the voltage of charging, the characteristics of the battery time during charging and the temperature of the battery during charging corresponding to the drop in battery voltage when fully charged and the temperature change are used. The difference is that control of charging stop is performed.
【００１１】本発明では、間欠充電中の組電池の充電時
間の停止方法として、充電末期の電池電圧の落ち込み現
象、充電前の電池の温度に対応した充電時間および電池
電圧の温度上昇の現象を利用している。その内、充電末
期の電池電圧の落ち込み現象では、ピーク電圧Ｖｐから
ある電圧（Ｖｐ−ΔＶ）まで低下したときに、充電停止
とする方式となる。充電前の電池の温度に対応した充電
時間を使用する方式では、予め充電前の電池温度Ｈ０と
充電時間Ｔ１の関係を測定しておき、その充電前の電池
温度Ｈ０に対応した充電時間Ｔ１で充電を行う。電池電
圧の温度上昇の現象では、充電前の組電池の温度Ｈ０毎
の充電停止温度Ｈ１を予め測定しておき、充電時に充電
前の電池の温度Ｈ０に対応して充電停止温度Ｈ１を変化
させることを特徴とする間欠充電回路である。In the present invention, as a method of stopping the charging time of the battery pack during intermittent charging, a phenomenon of a drop in battery voltage at the end of charging, a phenomenon of charging time corresponding to the temperature of the battery before charging and a temperature rise of the battery voltage. We are using. In the dropping phenomenon of the battery voltage at the end of charging, when the voltage drops from the peak voltage Vp to a certain voltage (Vp−ΔV), charging is stopped. In the method using the charging time corresponding to the temperature of the battery before charging, the relationship between the battery temperature H0 before charging and the charging time T1 is measured in advance, and the charging time T1 corresponding to the battery temperature H0 before charging is measured. Charge the battery. In the temperature rise phenomenon of the battery voltage, the charge stop temperature H1 is measured in advance for each temperature H0 of the battery pack before charging, and the charge stop temperature H1 is changed at the time of charging in accordance with the temperature H0 of the battery before charge. An intermittent charging circuit characterized in that:
【００１２】さらに、充電停止の制御の信頼性を上げる
ために、上記の方式を組み合わせた制御を行って、一つ
の方式が失敗しても、別の方式により安全に充電を停止
させることができる。Further, in order to increase the reliability of the control of the charging stop, by performing a control combining the above methods, even if one method fails, the charging can be stopped safely by another method. .
【００１３】[0013]
【発明の実施の形態】以下図面を参照して本発明の実施
の形態例を詳細に説明する。図１は本発明の請求項１お
よび１０を説明する二次電池の間欠充電回路であって、
１は少なくとも１個以上の二次電池によって構成される
組電池、２は前記組電池１の開回路状態での開回路電圧
から充電量を検出する充電容量検出回路、３は前記組電
池１に充電電流を供給する電源回路、４１は満充電時の
電圧低下を検出して充電を停止させる充電停止検出回
路、５は充電制御スイッチである。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an intermittent charging circuit for a secondary battery according to claims 1 and 10 of the present invention,
1 is a battery pack composed of at least one or more secondary batteries, 2 is a charge capacity detection circuit that detects a charged amount from an open circuit voltage of the battery pack 1 in an open circuit state, and 3 is a battery pack. A power supply circuit that supplies a charging current, 41 is a charge stop detection circuit that detects a voltage drop at the time of full charge and stops charging, and 5 is a charge control switch.
【００１４】図２は本発明の請求項１および１０を説明
するグラフであり、定電流で充電を行っているときのニ
ッケル水素電池の充電電圧と充電量の関係を示してい
る。このデータより、充電量１００％付近において、充
電電圧のピークが見られる。この現象を検出することに
より、満充電を検出することができる。FIG. 2 is a graph for explaining the first and tenth aspects of the present invention, and shows the relationship between the charging voltage and the charge amount of a nickel-metal hydride battery when charging is performed at a constant current. According to this data, a peak of the charging voltage is seen in the vicinity of the charging amount of 100%. By detecting this phenomenon, full charge can be detected.
【００１５】図１、２を参照して間欠充電回路の動作説
明を行う。はじめに、組電池１が充電を終了して開回路
状態になっている時、すなわち充電制御スイッチ５がオ
フになっている状態を維持している間、自己放電によっ
て徐々に組電池１の充電容量が低下する。この間、充電
容量検出回路２は組電池１の開回路電圧Ｖ１の測定から
充電容量を検知する。その充電容量がある値（たとえば
満充電の容量の９０％）まで低下したことを検出した段
階で、充電開始信号Ｖ２を充電制御スイッチ５にオン信
号Ｖｏｎとして出力する。そして、充電制御スイッチ５
がオンとなり、電源回路３から組電池１へ定電流による
充電（補充電）が開始される。一方、充電容量検出回路
２からの充電開始信号Ｖ２は充電停止検出回路４１へも
出力される。そして、充電開始信号Ｖ２が入力された充
電停止検出回路４１は、組電池１の充電電圧Ｖ１の監視
を始める。そして、前記組電池１の充電電圧が図２のよ
うに最大値Ｖｐに達して、その後充電電圧がある電圧
（Ｖｐ−ΔＶ）まで低下した時点で充電停止信号Ｖｏｆ
ｆを充電制御スイッチ５に出力する。充電電圧Ｖをある
時間間隔Ｔでモニターする。充電中に、時間Ｔｎの時の
充電電圧Ｖｎと次の時間Ｔｎ＋１の時の充電電圧Ｖｎ＋
１を比較して、Ｖｎ＜Ｖｎ＋１の場合、Ｖｎ＋１を暫定
的に電圧の最大値としてメモリする。そして、Ｖｎ＞Ｖ
ｎ＋１となった時点で、その電圧Ｖｎを最大電圧Ｖｍａ
ｘと決定する。その後、充電電圧とＶｍａｘの電圧差が
ΔＶになった時点で充電を停止させる。充電停止信号Ｖ
ｏｆｆが入力された充電制御スイッチ５はオフとなり組
電池１への充電電流は停止する。そして、組電池１は再
び開回路状態になる。The operation of the intermittent charging circuit will be described with reference to FIGS. First, when the battery pack 1 has finished charging and is in an open circuit state, that is, while the charge control switch 5 is kept off, the charge capacity of the battery pack 1 is gradually reduced by self-discharge. Decrease. During this time, the charge capacity detection circuit 2 detects the charge capacity from the measurement of the open circuit voltage V1 of the battery pack 1. Upon detecting that the charge capacity has decreased to a certain value (for example, 90% of the full charge capacity), a charge start signal V2 is output to the charge control switch 5 as an ON signal Von. And the charge control switch 5
Is turned on, and charging (supplementary charging) of the battery pack 1 from the power supply circuit 3 with a constant current is started. On the other hand, the charge start signal V2 from the charge capacity detection circuit 2 is also output to the charge stop detection circuit 41. Then, the charging stop detection circuit 41 to which the charging start signal V2 has been input starts monitoring the charging voltage V1 of the battery pack 1. Then, when the charging voltage of the battery pack 1 reaches the maximum value Vp as shown in FIG. 2 and thereafter decreases to a certain voltage (Vp−ΔV), the charging stop signal Vof
f is output to the charge control switch 5. The charging voltage V is monitored at certain time intervals T. During charging, charging voltage Vn at time Tn and charging voltage Vn + at next time Tn + 1
And if Vn <Vn + 1, Vn + 1 is temporarily stored as the maximum value of the voltage. And Vn> V
When the voltage becomes n + 1, the voltage Vn is changed to the maximum voltage Vma.
x is determined. Thereafter, the charging is stopped when the voltage difference between the charging voltage and Vmax becomes ΔV. Charge stop signal V
The charge control switch 5 to which “off” is input is turned off, and the charging current to the battery pack 1 is stopped. Then, the battery pack 1 enters the open circuit state again.
【００１６】以上の開回路状態と充電を繰り返すことに
より、常に組電池１の充電容量をある容量以上に保つ。
図３は本発明の請求項２、３、１１および１２を説明す
る二次電池の間欠充電回路であって、図１と同一のもの
には同一符号を付している。４２は組電池１の充電前の
温度に対応した充電時間で充電を停止させる充電停止検
出回路、６は温度センサである。By repeating the above open circuit state and charging, the charging capacity of the battery pack 1 is always maintained at a certain level or more.
FIG. 3 shows an intermittent charging circuit for a secondary battery according to the second, third, eleventh, and twelfth aspects of the present invention. Reference numeral 42 denotes a charge stop detection circuit for stopping charging at a charging time corresponding to the temperature of the battery pack 1 before charging, and reference numeral 6 denotes a temperature sensor.
【００１７】図４は本発明の請求項２、３、１１および
１２を説明するグラフであり、定電流で充電を行ってい
るときのニッケル水素電池の充電電圧と充電時間の関係
を温度毎に示している。なお、充電電圧のピークからΔ
Ｖだけ低下した点において、この電池は満充電状態であ
る。このデータより、電池の温度変化により、満充電ま
での時間が変化することが分かる。FIG. 4 is a graph for explaining the second, third, eleventh and twelfth aspects of the present invention. The relationship between the charging voltage and the charging time of a nickel-metal hydride battery when charging at a constant current is shown for each temperature. Is shown. Note that Δ from the peak of the charging voltage
At the point where it has dropped by V, the battery is fully charged. From this data, it can be seen that the time until full charge changes due to a change in battery temperature.
【００１８】図３、４を参照して間欠充電回路の動作説
明を行う。はじめに、組電池１が充電を終了して開回路
状態になっている時、すなわち充電制御スイッチ５がオ
フになっている状態を維持している間、自己放電によっ
て徐々に組電池１の充電容量が低下する。この間、充電
容量検出回路２は組電池１の開回路電圧Ｖ１の測定を通
じて充電容量を常時監視する。その充電容量がある値
（たとえば満充電の容量の９０％）まで低下したことを
検出した段階で、充電開始信号Ｖ２を充電制御スイッチ
５にオン信号Ｖｏｎとして出力する。そして、充電制御
スイッチ５がオンとなり、電源回路３から組電池１へ定
電流による充電（補充電）が開始される。一方、充電容
量検出回路２からの充電開始信号Ｖ２は同時に充電停止
検出回路４２へも出力される。また、組電池１の温度デ
ータが温度センサ６から充電停止検出回路４２へ出力さ
れる。充電開始信号Ｖ２が入力された充電停止検出回路
４２は、組電池１の充電前の温度Ｈ０に対応する充電時
間Ｔ０後に充電停止信号Ｖｏｆｆを充電制御スイッチ５
に出力する。充電停止信号Ｖｏｆｆが入力された充電制
御スイッチ５はオフし、組電池１への充電電流は停止す
る。そして、組電池１は再び開回路状態になる。The operation of the intermittent charging circuit will be described with reference to FIGS. First, when the battery pack 1 has finished charging and is in an open circuit state, that is, while the charge control switch 5 is kept off, the charge capacity of the battery pack 1 is gradually reduced by self-discharge. Decrease. During this time, the charge capacity detection circuit 2 constantly monitors the charge capacity by measuring the open circuit voltage V1 of the battery pack 1. Upon detecting that the charge capacity has decreased to a certain value (for example, 90% of the full charge capacity), a charge start signal V2 is output to the charge control switch 5 as an ON signal Von. Then, the charging control switch 5 is turned on, and charging (supplementary charging) of the battery pack 1 from the power supply circuit 3 with a constant current is started. On the other hand, the charge start signal V2 from the charge capacity detection circuit 2 is also output to the charge stop detection circuit 42 at the same time. Further, temperature data of the battery pack 1 is output from the temperature sensor 6 to the charge stop detection circuit 42. The charge stop detection circuit 42, to which the charge start signal V2 is input, sends the charge stop signal Voff to the charge control switch 5 after the charge time T0 corresponding to the temperature H0 of the battery pack 1 before charging.
Output to The charging control switch 5 to which the charging stop signal Voff has been input is turned off, and the charging current to the battery pack 1 stops. Then, the battery pack 1 enters the open circuit state again.
【００１９】以上の開回路状態と充電を繰り返して、常
に組電池１の充電容量をある容量以上に保つ。図５は、
本発明の請求項４、５、１３および１４を説明する二次
電池の間欠充電回路であって、図３と同一のものには同
一符号を付与している。４３は組電池１の充電前の温度
Ｈ０に対応した充電停止温度Ｈ１で停止させる充電停止
検出回路である。By repeating the above open circuit state and charging, the charged capacity of the battery pack 1 is always maintained at a certain level or more. FIG.
An intermittent charging circuit for a secondary battery according to claims 4, 5, 13 and 14 of the present invention, in which the same components as those in FIG. Reference numeral 43 denotes a charge stop detection circuit that stops at a charge stop temperature H1 corresponding to the temperature H0 of the battery pack 1 before charging.
【００２０】図６は、本発明の請求項４、５、１３およ
び１４を説明するグラフであり、定電流で充電を行って
いるときのニッケル水素電池の充電中の電池温度と充電
量を充電前の温度Ｈ０毎に示している。同図より、満充
電付近では温度が増加していることが分かり、満充電時
の温度Ｈ１を決定することにより、満充電を検出するこ
とができる。また、満充電時の温度Ｈ１は充電前の温度
Ｈ０によって変化している。FIG. 6 is a graph for explaining the fourth, fifth, thirteenth and fourteenth aspects of the present invention, in which the battery temperature and the charge amount during charging of a nickel-metal hydride battery during charging at a constant current are charged. It is shown for each previous temperature H0. From the figure, it can be seen that the temperature increases near the full charge, and the full charge can be detected by determining the temperature H1 at the time of the full charge. In addition, the temperature H1 at the time of full charge changes depending on the temperature H0 before charging.
【００２１】図５、６を参照して間欠充電回路の動作説
明を行う。はじめに、組電池１が充電を終了して開回路
状態になっている時、すなわち充電制御スイッチ５がオ
フになっている状態を維持している間、自己放電によっ
て徐々に組電池１の充電容量が低下する。この間、充電
容量検出回路２は組電池１の開回路電圧Ｖ１の測定を通
じて充電容量を監視する。その充電容量がある値（たと
えば満充電の容量の９０％）まで低下したことを検出し
た段階で、充電開始信号Ｖ２を充電制御スイッチ５にオ
ン信号Ｖｏｎとして出力する。そして、充電制御スイッ
チ５がオンとなり、電源回路３から組電池１へ定電流に
よる充電（補充電）が開始される。一方、充電容量検出
回路２からの充電開始信号Ｖ２は同時に充電停止検出回
路４３へも出力される。また、組電池１の温度データが
温度センサ６から充電停止検出回路４３へ出力される。
充電開始信号Ｖ２が入力された充電停止検出回路４３
は、組電池１の温度が充電前の温度Ｈ０に対応する充電
終止温度Ｈ１に達した段階で、充電停止信号Ｖｏｆｆを
充電制御スイッチ５に出力する。充電停止信号Ｖｏｆｆ
が入力された充電制御スイッチ５はオフし、組電池１へ
の充電電流は停止する。そして、組電池１は再び開回路
状態になる。The operation of the intermittent charging circuit will be described with reference to FIGS. First, when the battery pack 1 has finished charging and is in an open circuit state, that is, while the charge control switch 5 is kept off, the charge capacity of the battery pack 1 is gradually reduced by self-discharge. Decrease. During this time, the charge capacity detection circuit 2 monitors the charge capacity by measuring the open circuit voltage V1 of the battery pack 1. Upon detecting that the charge capacity has decreased to a certain value (for example, 90% of the full charge capacity), a charge start signal V2 is output to the charge control switch 5 as an ON signal Von. Then, the charging control switch 5 is turned on, and charging (supplementary charging) of the battery pack 1 from the power supply circuit 3 with a constant current is started. On the other hand, the charge start signal V2 from the charge capacity detection circuit 2 is also output to the charge stop detection circuit 43 at the same time. Further, temperature data of the battery pack 1 is output from the temperature sensor 6 to the charging stop detection circuit 43.
Charge stop detection circuit 43 to which charge start signal V2 has been input
Outputs a charge stop signal Voff to the charge control switch 5 when the temperature of the battery pack 1 reaches the charge end temperature H1 corresponding to the temperature H0 before charging. Charge stop signal Voff
Is turned off, the charging current to the battery pack 1 stops. Then, the battery pack 1 enters the open circuit state again.
【００２２】以上の開回路状態と充電を繰り返して、常
に組電池１の充電容量をある容量以上に保つ。図７は、
本発明の請求項６および１５を説明する二次電池の間欠
充電回路であって、その中で充電停止検出回路として請
求項１、２、３の回路及び請求項１０、１１、１２の方
法を採用し、４１は満充電時の電圧低下を検出して充電
を停止させる充電停止検出回路、４２は組電池１の充電
前の温度に対応した充電時間で充電を停止させる充電停
止検出回路、７はＯＲ回路である。図７で図１、３と同
一のものには同一符号を付与している。By repeating the above open circuit state and charging, the charging capacity of the battery pack 1 is always maintained at a certain level or more. FIG.
An intermittent charging circuit for a secondary battery according to claims 6 and 15 of the present invention, wherein the circuit according to claims 1, 2, and 3 and the method according to claims 10, 11, and 12 are used as a charge stop detection circuit. 41, a charge stop detection circuit for detecting a voltage drop at the time of full charge and stopping charging; 42, a charge stop detection circuit for stopping charging at a charging time corresponding to the temperature of the battery pack 1 before charging; Is an OR circuit. 7, the same components as those in FIGS. 1 and 3 are denoted by the same reference numerals.
【００２３】図８は、本発明の実施形態例である図７の
間欠充電回路を説明する間欠充電動作波形である。Ｖ１
は組電池１の電圧、Ｃ２は組電池１の充電容量、Ｖ４１
は充電停止検出回路４１の充電停止信号、Ｖ４２は充電
停止検出回路４２の充電停止信号、ＶｏｆｆはＯＲ回路
７の出力波形、Ｖｏｎ（Ｖ２）は充電容量検出回路２か
らの充電開始信号、Ｉは組電池１に流れる充電電流であ
る。FIG. 8 is an intermittent charging operation waveform illustrating the intermittent charging circuit of FIG. 7 which is an embodiment of the present invention. V1
Is the voltage of the battery pack 1, C2 is the charge capacity of the battery pack 1, V41
Is a charge stop signal of the charge stop detection circuit 41, V42 is a charge stop signal of the charge stop detection circuit 42, Voff is an output waveform of the OR circuit 7, Von (V2) is a charge start signal from the charge capacity detection circuit 2, and I is This is a charging current flowing through the battery pack 1.
【００２４】図７、８を参照して間欠充電回路の動作説
明を行う。はじめに、組電池１が充電を終了して開回路
状態になっている時、すなわち充電制御スイッチ５がオ
フになっている状態を維持している間、自己放電によっ
て徐々に組電池１の充電容量Ｃ２が低下する。この間、
充電容量検出回路２は組電池１の開回路電圧Ｖ１の測定
を通じて充電容量Ｃ２を検知する。その充電容量Ｃ２が
ある値Ｑ０（たとえば満充電の容量の９０％）まで低下
したことを検出した段階で、充電開始信号Ｖ２を充電制
御スイッチ５に出力（Ｖｏｎ）する。そして、充電制御
スイッチ５がオンとなり、電源回路３から組電池１へ定
電流による充電（補充電）が開始される。一方、充電容
量検出回路２からの充電開始信号Ｖ２は充電停止検出回
路４１、４２へも出力される。充電開始信号Ｖ２が入力
された充電停止検出回路４１、４２は、それぞれの充電
停止信号Ｖ４１、Ｖ４２が停止し、つまりゼロレベルに
なる。この時点から充電停止検出回路４１は充電中の組
電池１の充電電圧の落ち込みの監視を始め、充電停止検
出回路４２は充電時間の計測を始める。今、充電期間が
領域＜Ａ＞であるとすると、この期間では、充電停止検
出回路４２よりも先に充電停止検出回路４１の充電停止
の条件が満足されるので、充電停止検出回路４１から充
電停止信号Ｖ４１が出力される。なお、充電停止信号Ｖ
４１と充電停止信号Ｖ４２はともにＯＲ回路７に入力さ
れ、Ｖ４１またはＶ４２のどちらかがオンレベル（充電
停止）の時、充電停止信号Ｖｏｆｆはオンレベル（充電
停止）となる。Ｖ４１がオンになった時点で、充電制御
スイッチ５はオフし、組電池１への充電が停止する。そ
の後、組電池１は再び開回路状態になる。The operation of the intermittent charging circuit will be described with reference to FIGS. First, when the battery pack 1 has finished charging and is in an open circuit state, that is, while the charge control switch 5 is kept off, the charge capacity of the battery pack 1 is gradually reduced by self-discharge. C2 decreases. During this time,
The charge capacity detection circuit 2 detects the charge capacity C2 by measuring the open circuit voltage V1 of the battery pack 1. Upon detecting that the charge capacity C2 has decreased to a certain value Q0 (for example, 90% of the full charge capacity), a charge start signal V2 is output (Von) to the charge control switch 5. Then, the charging control switch 5 is turned on, and charging (supplementary charging) of the battery pack 1 from the power supply circuit 3 with a constant current is started. On the other hand, the charge start signal V2 from the charge capacity detection circuit 2 is also output to the charge stop detection circuits 41 and 42. The charge stop detection circuits 41 and 42 to which the charge start signal V2 is input stop the respective charge stop signals V41 and V42, that is, go to the zero level. From this point, the charge stop detection circuit 41 starts monitoring the drop in the charging voltage of the battery pack 1 being charged, and the charge stop detection circuit 42 starts measuring the charging time. Now, assuming that the charging period is the region <A>, in this period, the charging stop detection circuit 41 satisfies the charging stop condition prior to the charging stop detection circuit 42, so that the charging stop detection circuit 41 The stop signal V41 is output. The charge stop signal V
41 and the charge stop signal V42 are both input to the OR circuit 7, and when either V41 or V42 is on level (charge stop), the charge stop signal Voff is on level (charge stop). When V41 is turned on, the charge control switch 5 is turned off, and charging of the battery pack 1 is stopped. Thereafter, the battery pack 1 is again in the open circuit state.
【００２５】以上の開回路状態と充電を繰り返して、常
に組電池１の充電容量をある容量Ｑ０以上に保つ。な
お、領域＜Ｂ＞に見られるように、Ｖ４２の方がＶ４１
よりも先にオンレベルになった場合は、Ｖ４２がオンに
なった時点で、充電制御スイッチ５はオフし、組電池１
への充電は同じように停止する。By repeating the above open circuit state and charging, the charged capacity of the battery pack 1 is always maintained at a certain capacity Q0 or more. In addition, as seen in the region <B>, V42 is higher than V41.
If the level is turned on earlier than the time when V42 is turned on, the charge control switch 5 is turned off and the battery pack 1 is turned on.
Charging stops in the same way.
【００２６】図９は、本発明の請求項７、１６の実施形
態例を説明する二次電池の間欠充電回路であって、その
中で充電停止検出回路として請求項１、４、５の回路と
請求項１０、１３、１４の方法を採用している。４１は
満充電時の電圧低下を検出して充電を停止させる充電停
止検出回路、４３は組電池１の充電前の温度Ｈ０に対応
した充電停止温度Ｈ１で停止させる充電停止検出回路、
７はＯＲ回路である。図９で図１、５と同一のものには
同一符号を付している。FIG. 9 shows an intermittent charging circuit for a secondary battery according to a seventh and a 16th embodiment of the present invention. And the methods of claims 10, 13 and 14. 41 is a charge stop detection circuit for detecting a voltage drop at the time of full charge to stop charging, 43 is a charge stop detection circuit for stopping at a charge stop temperature H1 corresponding to the temperature H0 of the battery pack 1 before charging,
7 is an OR circuit. In FIG. 9, the same components as those in FIGS. 1 and 5 are denoted by the same reference numerals.
【００２７】図１０は、本発明の実施形態例である図９
の間欠充電回路を説明する間欠充電動作波形である。Ｖ
１は組電池１の電圧、Ｃ２は組電池１の充電容量、Ｈは
電池電圧、Ｖ４１は充電停止検出回路４１の充電停止信
号、Ｖ４３は充電停止検出回路４３の充電停止信号、Ｖ
ｏｆｆはＯＲ回路７の出力波形、Ｖｏｎ（Ｖ２）は充電
容量検出回路２からの充電開始信号、Ｉは組電池１に流
れる充電電流である。FIG. 10 shows an embodiment of the present invention.
5 is an intermittent charging operation waveform for explaining an intermittent charging circuit. V
1 is the voltage of the battery pack 1, C2 is the charge capacity of the battery pack 1, H is the battery voltage, V41 is the charge stop signal of the charge stop detection circuit 41, V43 is the charge stop signal of the charge stop detection circuit 43, V
“off” is an output waveform of the OR circuit 7, Von (V 2) is a charge start signal from the charge capacity detection circuit 2, and I is a charge current flowing through the battery pack 1.
【００２８】図９、１０を参照して間欠充電回路の動作
説明を行う。はじめに、組電池１が充電を終了して開回
路状態になっている時、すなわち充電制御スイッチ５が
オフになっている状態を維持している間、自己放電によ
って徐々に組電池１の充電容量Ｃ２が低下する。この
間、充電容量検出回路２は組電池１の開回路電圧Ｖ１の
測定を用いて充電容量Ｃ２を検知する。その充電容量Ｃ
２がある値Ｑ０（たとえば満充電の容量の９０％）まで
低下したことを検出した段階で、充電開始信号Ｖ２を充
電制御スイッチ５に出力（Ｖｏｎ）する。そして、充電
制御スイッチ５がオンとなり、電源回路３から組電池１
へ定電流による充電（補充電）が開始される。一方、充
電容量検出回路２からの充電開始信号Ｖ２は充電停止検
出回路４１、４３へも出力される。充電開始信号Ｖ２が
入力された充電停止検出回路４１、４３は、それぞれの
充電停止信号Ｖ４１、Ｖ４３が停止し、つまりゼロレベ
ルになる。この時点から充電停止検出回路４１は充電中
の組電池１の充電電圧の落ち込みの監視を始め、充電停
止検出回路４３は充電時の電池温度の計測を始める。
今、充電期間が領域＜Ａ＞であるとすると、この期間で
は、充電停止検出回路４３よりも先に充電停止検出回路
４１の充電停止の条件が満足されるので、充電停止検出
回路４１から充電停止信号Ｖ４１が出力される。なお、
充電停止信号Ｖ４１と充電停止信号Ｖ４３はともにＯＲ
回路７に入力され、Ｖ４１またはＶ４３のどちらかがオ
ンレベル（充電停止）の時、充電停止信号Ｖｏｆｆはオ
ンレベル（充電停止）となる。本領域＜Ａ＞では、Ｖ４
１の方がオンになり、Ｖ４３は、閾値の温度Ｈ１まであ
がらないので、オフのままである。Ｖ４１がオンになっ
た時点で、充電制御スイッチ５はオフし、組電池１への
充電が停止する。その後、組電池１は再び開回路状態に
なる。The operation of the intermittent charging circuit will be described with reference to FIGS. First, when the battery pack 1 has finished charging and is in an open circuit state, that is, while the charge control switch 5 is kept off, the charge capacity of the battery pack 1 is gradually reduced by self-discharge. C2 decreases. During this time, the charge capacity detection circuit 2 detects the charge capacity C2 by using the measurement of the open circuit voltage V1 of the battery pack 1. Its charging capacity C
At the stage where it is detected that 2 has dropped to a certain value Q0 (for example, 90% of the full charge capacity), a charge start signal V2 is output (Von) to the charge control switch 5. Then, the charge control switch 5 is turned on, and the battery pack 1
Charging with a constant current (supplementary charging) is started. On the other hand, the charge start signal V2 from the charge capacity detection circuit 2 is also output to the charge stop detection circuits 41 and 43. The charge stop detection circuits 41 and 43 to which the charge start signal V2 is input stop the respective charge stop signals V41 and V43, that is, go to the zero level. From this point, the charge stop detection circuit 41 starts monitoring the drop in the charging voltage of the battery pack 1 being charged, and the charge stop detection circuit 43 starts measuring the battery temperature during charging.
Now, assuming that the charging period is the region <A>, in this period, the charging stop detection circuit 41 satisfies the charging stop condition of the charging stop detection circuit 41 before the charging stop detection circuit 43. The stop signal V41 is output. In addition,
Both the charge stop signal V41 and the charge stop signal V43 are OR
When either V41 or V43 is input to the circuit 7 and is at the on level (charge stop), the charge stop signal Voff is at the on level (charge stop). In this area <A>, V4
1 is turned on and V43 remains off because it does not rise to the threshold temperature H1. When V41 is turned on, the charge control switch 5 is turned off, and charging of the battery pack 1 is stopped. Thereafter, the battery pack 1 is again in the open circuit state.
【００２９】以上の開回路状態と充電を繰り返して、常
に組電池１の充電容量をある容量Ｑ０以上に保つ。な
お、領域＜Ｂ＞に見られるように、先に充電停止検出回
路４３の充電停止信号Ｖ４３の方が先にオンレベルにな
った場合でも、充電制御スイッチ５はオフし、組電池１
への充電は同じように停止する。By repeating the above open circuit state and charging, the charged capacity of the battery pack 1 is always maintained at a certain capacity Q0 or more. Note that, as can be seen in the region <B>, even when the charge stop signal V43 of the charge stop detection circuit 43 first goes to the on level first, the charge control switch 5 is turned off and the battery pack 1 is turned off.
Charging stops in the same way.
【００３０】図１１は、本発明の請求項８、１７の実施
形態例を説明する二次電池の間欠充電回路であって、そ
の中で充電停止検出回路として請求項２、３、４、５の
回路と請求項１１、１２、１３、１４の方法を採用して
いる。４２は組電池１の充電前の温度に対応した充電時
間で充電を停止させる充電停止検出回路、４３は組電池
１の充電前の温度Ｈ０に対応した充電停止温度Ｈ１で停
止させる充電停止検出回路、７はＯＲ回路である。図１
１で図３、５と同一のものには同一符号を付している。FIG. 11 shows an intermittent charging circuit for a secondary battery according to an eighth embodiment of the present invention, in which a charge stop detecting circuit is provided. And the method of claims 11, 12, 13, and 14. Reference numeral 42 denotes a charge stop detection circuit that stops charging at a charge time corresponding to the temperature of the battery pack 1 before charging, and reference numeral 43 denotes a charge stop detection circuit that stops at a charge stop temperature H1 corresponding to the temperature H0 of the battery pack 1 before charging. , 7 are OR circuits. FIG.
1 that are the same as in FIGS. 3 and 5 are given the same reference numerals.
【００３１】図１２は、本発明の実施形態例である図１
１の間欠充電回路を説明する間欠充電動作波形である。
Ｖ１は組電池１の電圧、Ｃ２は組電池１の充電容量、Ｈ
は電池電圧、Ｖ４２は充電停止検出回路４２の充電停止
信号、Ｖ４３は充電停止検出回路４３の充電停止信号、
ＶｏｆｆはＯＲ回路７の出力波形、Ｖｏｎ（Ｖ２）は充
電容量検出回路２からの充電開始信号、Ｉは組電池１に
流れる充電電流である。FIG. 12 shows an embodiment of the present invention.
7 is an intermittent charging operation waveform illustrating one intermittent charging circuit.
V1 is the voltage of the battery pack 1, C2 is the charge capacity of the battery pack 1, H
Is a battery voltage, V42 is a charge stop signal of the charge stop detection circuit 42, V43 is a charge stop signal of the charge stop detection circuit 43,
Voff is an output waveform of the OR circuit 7, Von (V2) is a charge start signal from the charge capacity detection circuit 2, and I is a charge current flowing through the battery pack 1.
【００３２】図１１、１２を参照して間欠充電回路の動
作説明を行う。はじめに、組電池１が充電を終了して開
回路状態になっている時、すなわち充電制御スイッチ５
がオフになっている状態を維持している間、自己放電に
よって徐々に組電池１の充電容量Ｃ２が低下する。この
間、充電容量検出回路２は組電池１の開回路電圧Ｖ１の
測定を通じて充電容量Ｃ２を検知する。その充電容量Ｃ
２がある値Ｑ０（たとえば満充電の容量の９０％）まで
低下したことを検出した段階で、充電開始信号Ｖ２を充
電制御スイッチ５に出力（Ｖｏｎ）する。そして、充電
制御スイッチ５がオンとなり、電源回路３から組電池１
へ定電流による充電（補充電）が開始される。一方、充
電容量検出回路２からの充電開始信号Ｖ２は充電停止検
出回路４２、４３へも出力される。充電開始信号Ｖ２が
入力された充電停止検出回路４２、４３は、それぞれの
充電停止信号Ｖ４２、Ｖ４３が停止し、つまりゼロレベ
ルになる。この時点から充電停止検出回路４２は充電時
間の計測を始め、充電停止検出回路４３は充電時の電池
温度の計測を始める。今、充電期間が領域＜Ａ＞である
とすると、この期間では、充電停止検出回路４３よりも
先に充電停止検出回路４２の充電停止の条件が満足され
るので、充電停止検出回路４２から充電停止信号Ｖ４２
が出力される。なお、充電停止信号Ｖ４２と充電停止信
号Ｖ４３はともにＯＲ回路７に入力され、Ｖ４２または
Ｖ４３のどちらかがオンレベル（充電停止）の時、充電
停止信号Ｖｏｆｆはオンレベル（充電停止）となる。本
領域＜Ａ＞では、Ｖ４２の方がオンになり、Ｖ４３は、
閾値の温度Ｈ１まであがらないので、オフのままであ
る。Ｖ４２がオンになった時点で、充電制御スイッチ５
はオフし、組電池１への充電が停止する。その後、組電
池１は再び開回路状態になる。The operation of the intermittent charging circuit will be described with reference to FIGS. First, when the battery pack 1 has finished charging and is in an open circuit state, that is, the charge control switch 5
While the state where is turned off is maintained, the charge capacity C2 of the battery pack 1 gradually decreases due to self-discharge. During this time, the charge capacity detection circuit 2 detects the charge capacity C2 by measuring the open circuit voltage V1 of the battery pack 1. Its charging capacity C
At the stage where it is detected that 2 has dropped to a certain value Q0 (for example, 90% of the full charge capacity), a charge start signal V2 is output (Von) to the charge control switch 5. Then, the charge control switch 5 is turned on, and the battery pack 1
Charging with a constant current (supplementary charging) is started. On the other hand, the charge start signal V2 from the charge capacity detection circuit 2 is also output to the charge stop detection circuits 42 and 43. The charge stop detection circuits 42 and 43 to which the charge start signal V2 is input stop the respective charge stop signals V42 and V43, that is, go to the zero level. At this point, the charge stop detection circuit 42 starts measuring the charging time, and the charge stop detection circuit 43 starts measuring the battery temperature during charging. Assuming that the charging period is the region <A>, the charging stop condition of the charging stop detecting circuit 42 is satisfied before the charging stop detecting circuit 43 in this period. Stop signal V42
Is output. Note that the charge stop signal V42 and the charge stop signal V43 are both input to the OR circuit 7, and when either V42 or V43 is at the on level (charge stop), the charge stop signal Voff is at the on level (charge stop). In this area <A>, V42 is turned on, and V43 is
Since the temperature does not reach the threshold temperature H1, it remains off. When V42 is turned on, the charge control switch 5
Is turned off, and charging of the battery pack 1 is stopped. Thereafter, the battery pack 1 is again in the open circuit state.
【００３３】以上の開回路状態と充電を繰り返して、常
に組電池１の充電容量をある容量Ｑ０以上に保つ。な
お、領域＜Ｂ＞に見られるように、Ｖ４３の方がオンレ
ベルになった場合でも、充電制御スイッチ５はオフし、
組電池１への充電は同様に停止する。By repeating the above open circuit state and charging, the charged capacity of the battery pack 1 is always maintained at a certain capacity Q0 or more. Note that, as seen in the region <B>, even when V43 is turned on, the charge control switch 5 is turned off.
Charging of the battery pack 1 is similarly stopped.
【００３４】図１３は、本発明の請求項９、１８の実施
形態例を説明する二次電池の間欠充電回路であり、１は
少なくとも１個以上の二次電池によって構成される組電
池、２は前記組電池１の開回路状態での開回路電圧から
充電量を検出する充電容量検出回路、３は前記組電池１
に充電電流を供給する電源回路、４１は満充電時の電圧
低下を検出して充電を停止させる充電停止検出回路、４
２は組電池１の充電前の温度に対応した充電時間で充電
を停止させる充電停止検出回路、４３は組電池１の充電
前の温度Ｈ０に対応した充電停止温度Ｈ１で停止させる
充電停止検出回路、５は充電制御スイッチ、６は温度セ
ンサ、７はＯＲ回路である。FIG. 13 shows an intermittent charging circuit for a secondary battery according to the ninth and eighteenth embodiments of the present invention, wherein 1 is an assembled battery composed of at least one or more secondary batteries. A charge capacity detection circuit for detecting a charge amount from an open circuit voltage of the battery pack 1 in an open circuit state;
A power supply circuit for supplying a charging current to the power supply 41; a charge stop detection circuit 41 for detecting a voltage drop at the time of full charge and stopping charging;
Reference numeral 2 denotes a charge stop detection circuit that stops charging at a charge time corresponding to the temperature of the battery pack 1 before charging, and reference numeral 43 denotes a charge stop detection circuit that stops at a charge stop temperature H1 corresponding to the temperature H0 of the battery pack 1 before charge. Reference numeral 5 indicates a charge control switch, reference numeral 6 indicates a temperature sensor, and reference numeral 7 indicates an OR circuit.
【００３５】図１４は、本発明の実施形態例である図１
３の間欠充電回路を説明する間欠充電動作波形である。
Ｖ１は組電池１の電圧、Ｃ２は組電池１の充電容量、Ｈ
は電池電圧、Ｖ４１は充電停止検出回路４１の充電停止
信号、Ｖ４２は充電停止検出回路４２の充電停止信号、
Ｖ４３は充電停止検出回路４３の充電停止信号、Ｖｏｆ
ｆはＯＲ回路７の出力波形、Ｖｏｎ（Ｖ２）は充電容量
検出回路２からの充電開始信号、Ｉは組電池１に流れる
充電電流である。FIG. 14 shows an embodiment of the present invention.
3 is an intermittent charging operation waveform illustrating an intermittent charging circuit of FIG.
V1 is the voltage of the battery pack 1, C2 is the charge capacity of the battery pack 1, H
Is a battery voltage, V41 is a charge stop signal of the charge stop detection circuit 41, V42 is a charge stop signal of the charge stop detection circuit 42,
V43 is a charge stop signal of the charge stop detection circuit 43, Vof
f is an output waveform of the OR circuit 7, Von (V2) is a charge start signal from the charge capacity detection circuit 2, and I is a charge current flowing through the battery pack 1.
【００３６】図１３、１４を参照して間欠充電回路の動
作説明を行う。はじめに、組電池１が充電を終了して開
回路状態になっている時、すなわち充電制御スイッチ５
がオフになっている状態を維持している間、自己放電に
よって徐々に組電池１の充電容量Ｃ２が低下する。この
間、充電容量検出回路２は組電池１の開回路電圧Ｖ１の
測定を通じて充電容量Ｃ２を検知する。その充電容量Ｃ
２がある値Ｑ０（たとえば満充電の容量の９０％）まで
低下したことを検出した段階で、充電開始信号Ｖ２を充
電制御スイッチ５に出力（Ｖｏｎ）する。そして、充電
制御スイッチ５がオンとなり、電源回路３から組電池１
へ定電流による充電（補充電）が開始される。一方、充
電容量検出回路２からの充電開始信号Ｖ２は充電停止検
出回路４１、４２、４３へも出力される。充電開始信号
Ｖ２が入力された充電停止検出回路４１、４２、４３
は、それぞれの充電停止信号Ｖ４１、Ｖ４２、Ｖ４３が
停止し、つまりゼロレベルになる。この時点から充電停
止検出回路４１は充電中の組電池１の充電電圧の落ち込
みの監視を始め、充電停止検出回路４２は充電時間の計
測を始め、充電停止検出回路４３は充電時の電池温度の
計測を始める。今、充電期間が領域＜Ａ＞であるとする
と、この期間では、充電停止検出回路４２、４３よりも
先に充電停止検出回路４１の充電停止の条件が満足され
るので、充電停止検出回路４１から充電停止信号Ｖ４１
が出力される。なお、充電停止信号Ｖ４１、Ｖ４２、４
３はＯＲ回路７に入力され、Ｖ４１、Ｖ４２およびＶ４
３の１つ以上がオンレベル（充電停止）の時、充電停止
信号Ｖｏｆｆはオンレベル（充電停止）となる。本領域
＜Ａ＞では、Ｖ４１の方がオンになり、Ｖ４２は充電時
間まで達しないので、オフのままであり、Ｖ４３も閾値
の温度Ｈ１まであがらないので、オフのままである。Ｖ
４１がオンになった時点で、充電制御スイッチ５はオフ
し、組電池１への充電が停止する。その後、組電池１は
再び開回路状態になる。The operation of the intermittent charging circuit will be described with reference to FIGS. First, when the battery pack 1 has finished charging and is in an open circuit state, that is, the charge control switch 5
While the state where is turned off is maintained, the charge capacity C2 of the battery pack 1 gradually decreases due to self-discharge. During this time, the charge capacity detection circuit 2 detects the charge capacity C2 by measuring the open circuit voltage V1 of the battery pack 1. Its charging capacity C
At the stage where it is detected that 2 has dropped to a certain value Q0 (for example, 90% of the full charge capacity), a charge start signal V2 is output (Von) to the charge control switch 5. Then, the charge control switch 5 is turned on, and the battery pack 1
Charging with a constant current (supplementary charging) is started. On the other hand, the charge start signal V2 from the charge capacity detection circuit 2 is also output to the charge stop detection circuits 41, 42, and 43. Charge stop detection circuits 41, 42, 43 to which the charge start signal V2 has been input
, The respective charge stop signals V41, V42, V43 are stopped, that is, they become zero level. At this point, the charge stop detection circuit 41 starts monitoring for a drop in the charging voltage of the battery pack 1 being charged, the charge stop detection circuit 42 starts measuring the charging time, and the charge stop detection circuit 43 detects the battery temperature during charging. Start measuring. Now, assuming that the charging period is the region <A>, in this period, the charging stop detection circuit 41 satisfies the charging stop condition of the charging stop detection circuit 41 before the charging stop detection circuits 42 and 43. From the charge stop signal V41
Is output. The charge stop signals V41, V42, 4
3 is input to the OR circuit 7, and V41, V42 and V4
When one or more of the three is at the on level (charge stop), the charge stop signal Voff is at the on level (charge stop). In this region <A>, V41 is turned on, V42 does not reach the charging time, and thus remains off, and V43 does not rise to the threshold temperature H1, and thus remains off. V
When 41 is turned on, the charge control switch 5 is turned off, and charging of the battery pack 1 is stopped. Thereafter, the battery pack 1 is again in the open circuit state.
【００３７】以上の開回路状態と充電を繰り返して、常
に組電池１の充電容量をある容量Ｑ０以上に保つ。な
お、領域＜Ｂ＞、＜Ｃ＞に見られるように、Ｖ４２の方
が一番先にオンレベルになった場合、またはＶ４３の方
が一番先にオンレベルになった場合でも、充電制御スイ
ッチ５はオフし、組電池１への充電は同様に停止する。By repeating the above open circuit state and charging, the charged capacity of the battery pack 1 is always maintained at a certain capacity Q0 or more. Note that, as seen in the regions <B> and <C>, even when V42 is first turned on, or V43 is first turned on, charge control is not performed. The switch 5 is turned off, and charging of the battery pack 1 is similarly stopped.
【００３８】[0038]
【発明の効果】以上説明したように本発明によれば、間
欠充電中の組電池の充電の停止方法として、ピーク電圧
Ｖｐからある電圧まで低下したときに充電停止とする方
式又は、充電前の電池温度Ｈ０に対応した充電時間Ｔ１
で充電を行う方式又は、充電時に充電前の電池の温度Ｈ
０に対応して充電停止温度Ｈ１に電池温度が達した段階
で充電を停止させる方式を用いることにより、補充電時
に満充電状態を達成することができる。As described above, according to the present invention, as a method of stopping charging of the battery pack during intermittent charging, a method of stopping charging when the voltage drops from the peak voltage Vp to a certain voltage, or a method of stopping charging before charging is performed. Charging time T1 corresponding to battery temperature H0
Or the temperature H of the battery before charging at the time of charging.
By using a method in which charging is stopped when the battery temperature reaches the charging stop temperature H1 corresponding to 0, a full charge state can be achieved at the time of auxiliary charging.
【００３９】さらに、充電停止の制御の信頼性を上げる
ために、上記の３つの方式を２つまたは３つすべて組み
合わせた制御を行うことにより、一つの方式が失敗して
も、別の方式により安全に充電を停止させることができ
る。Further, in order to increase the reliability of the control of the charging stop, by performing control in which two or all three of the above three methods are combined, even if one method fails, another method is used. Charging can be safely stopped.
【図１】本発明の実施形態例１を示す構成説明図であ
る。FIG. 1 is a configuration explanatory view showing a first embodiment of the present invention.
【図２】本発明の実施形態例１に係るニッケル水素電池
の充電電圧と充電量の関係の一例を示す特性図である。FIG. 2 is a characteristic diagram illustrating an example of a relationship between a charge voltage and a charge amount of the nickel-metal hydride battery according to Embodiment 1 of the present invention.
【図３】本発明の実施形態例２を示す構成説明図であ
る。FIG. 3 is a configuration explanatory view showing a second embodiment of the present invention.
【図４】本発明の実施形態例２に係るニッケル水素電池
の充電電圧と充電量の関係の一例を示す特性図である。FIG. 4 is a characteristic diagram illustrating an example of a relationship between a charge voltage and a charge amount of a nickel-metal hydride battery according to Embodiment 2 of the present invention.
【図５】本発明の実施形態例３を示す構成説明図であ
る。FIG. 5 is a configuration explanatory view showing a third embodiment of the present invention.
【図６】本発明の実施形態例３に係るニッケル水素電池
の温度変化と充電量の関係の一例を示す特性図である。FIG. 6 is a characteristic diagram showing an example of a relationship between a temperature change and a charge amount of the nickel-metal hydride battery according to Embodiment 3 of the present invention.
【図７】本発明の実施形態例４を示す構成説明図であ
る。FIG. 7 is a configuration explanatory view showing a fourth embodiment of the present invention.
【図８】図７の基本動作の一例を示す充電動作波形図で
ある。FIG. 8 is a waveform diagram of a charging operation showing an example of the basic operation of FIG. 7;
【図９】本発明の実施形態例５を示す構成説明図であ
る。FIG. 9 is a configuration explanatory view showing a fifth embodiment of the present invention.
【図１０】図９の基本動作の一例を示す充電動作波形図
である。FIG. 10 is a waveform diagram of a charging operation showing an example of the basic operation of FIG.
【図１１】本発明の実施形態例６を示す構成説明図であ
る。FIG. 11 is a configuration explanatory view showing a sixth embodiment of the present invention.
【図１２】図１１の基本動作の一例を示す充電動作波形
図である。FIG. 12 is a charging operation waveform diagram showing an example of the basic operation of FIG.
【図１３】本発明の実施形態例７を示す構成説明図であ
る。FIG. 13 is a configuration explanatory view showing a seventh embodiment of the present invention.
【図１４】図１３の基本動作の一例を示す充電動作波形
図である。FIG. 14 is a charging operation waveform diagram showing an example of the basic operation of FIG.
Ｖ１…組電池１の電圧、Ｖｐ…充電時の電圧の最大値、
ΔＶ…発生後の低下電圧値、Ｃ２…組電池１の充電容
量、Ｑ０…常に最低限必要な充電容量、Ｔ０…満充電に
なるまでの時間、Ｈ…電池温度、Ｈ０…充電前の電池温
度、Ｈ１…満充電時の電池温度、Ｖ４１…充電停止検出
回路４１の充電停止信号、Ｖ４２…充電停止検出回路４
２の充電停止信号、Ｖ４３…充電停止検出回路４３の充
電停止信号、Ｖｏｆｆ…スイッチ５へのオフ信号、Ｖｏ
ｎ（Ｖ２）…スイッチ５へのオン信号、Ｉ…組電池１に
流れる充電電流。V1: the voltage of the battery pack 1, Vp: the maximum value of the voltage during charging,
ΔV: reduced voltage value after occurrence, C2: charged capacity of battery pack 1, Q0: minimum required charging capacity, T0: time until full charge, H: battery temperature, H0: battery temperature before charging , H1... The battery temperature when fully charged, V41... The charge stop signal of the charge stop detection circuit 41, V42.
2, a charge stop signal of the charge stop detection circuit 43, Voff ... an off signal to the switch 5, Vo
n (V2): ON signal to switch 5, I: charging current flowing through battery pack 1.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 鍬田 豊 東京都新宿区西新宿三丁目19番２号 日本 電信電話株式会社内 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Yutaka Koeda Nippon Telegraph and Telephone Corporation 3-19-2 Nishishinjuku, Shinjuku-ku, Tokyo
Claims (18)
構成される組電池と、前記組電池の開回路状態での開回
路電圧から充電量を検出する充電容量検出回路と、前記
組電池に充電電流を供給する電源回路と、前記組電池の
満充電時に発生する電圧低下を検出して充電を停止させ
る充電停止検出回路、充電制御スイッチからなり、 前記充電制御スイッチをオン・オフすることによって、
前記電源回路から前記組電池に充電電流の制御を行う動
作を前提にして、前記充電容量検出回路からの信号が充
電制御スイッチをオンし、前記充電停止検出回路からの
信号が充電制御スイッチをオフし、開回路状態である前
記組電池が自己放電によってある値まで容量が低下した
ことを充電容量検出回路で検出して、充電を開始し、前
記組電池が満充電になったことを充電停止検出回路が検
知して、充電を停止する二次電池の間欠充電回路におい
て、 前記充電停止検出回路は、前記組電池に充電電流Ｉ０を
流している時に、充電中の前記組電池の電圧が最大値Ｖ
ｐに達して、その後充電電圧がある電圧（Ｖｐ−ΔＶ）
まで低下した時点で充電を停止させる手段を有すること
を特徴とする二次電池の間欠充電回路。1. A battery pack comprising at least one or more secondary batteries, a charge capacity detection circuit for detecting a charge amount from an open circuit voltage of the battery pack in an open circuit state, and charging the battery pack A power supply circuit for supplying a current, a charge stop detection circuit for detecting a voltage drop occurring when the battery pack is fully charged and stopping charging, and a charge control switch; by turning on and off the charge control switch,
Assuming an operation of controlling the charging current from the power supply circuit to the battery pack, a signal from the charge capacity detection circuit turns on a charge control switch, and a signal from the charge stop detection circuit turns off the charge control switch. Then, the charge capacity detection circuit detects that the capacity of the battery pack in the open circuit state has decreased to a certain value due to self-discharge, starts charging, and stops charging when the battery pack is fully charged. In the intermittent charging circuit of the secondary battery, which is detected by the detection circuit and stops charging, the charging stop detection circuit is configured such that when the charging current I0 is supplied to the battery pack, the voltage of the battery pack being charged becomes the maximum. Value V
p, then a certain voltage (Vp-ΔV)
An intermittent charging circuit for a secondary battery, comprising: means for stopping charging at the time when the voltage has dropped to a level lower than the threshold.
構成される組電池と、前記組電池の開回路状態での開回
路電圧から充電量を検出する充電容量検出回路と、前記
組電池に充電電流を供給する電源回路と、充電開始から
設定された充電時間が経過後に充電を停止させる充電停
止検出回路、充電制御スイッチからなり、 前記充電制御スイッチをオン・オフすることによって、
前記電源回路から前記組電池に充電電流の制御を行う動
作を前提にして、前記充電容量検出回路からの信号が充
電制御スイッチをオンし、前記充電停止検出回路からの
信号が充電制御スイッチをオフし、開回路状態である前
記組電池が自己放電によってある値まで容量が低下した
ことを充電容量検出回路で検出して、充電を開始し、前
記組電池が満充電になったことを充電停止検出回路が検
出して、充電を停止する二次電池の間欠充電回路におい
て、 前記充電停止検出回路は、前記組電池に充電電流Ｉ０を
流した時の満充電になるときの充電時間を予め測定して
おき、前記充電時間に達した時点で充電を停止させる手
段を有することを特徴とする二次電池の間欠充電回路。2. An assembled battery comprising at least one secondary battery, a charge capacity detecting circuit for detecting a charge amount from an open circuit voltage of the assembled battery in an open circuit state, and charging the assembled battery. A power supply circuit that supplies current, a charge stop detection circuit that stops charging after a set charging time has elapsed since the start of charging, and a charge control switch, by turning on and off the charge control switch,
Assuming an operation of controlling the charging current from the power supply circuit to the battery pack, a signal from the charge capacity detection circuit turns on a charge control switch, and a signal from the charge stop detection circuit turns off the charge control switch. Then, the charge capacity detection circuit detects that the capacity of the battery pack in the open circuit state has decreased to a certain value due to self-discharge, starts charging, and stops charging when the battery pack is fully charged. In the intermittent charging circuit of a secondary battery, which is detected by a detection circuit and stops charging, the charging stop detection circuit previously measures a charging time when the battery pack is fully charged when a charging current I0 is supplied to the battery pack. In addition, an intermittent charging circuit for a secondary battery, comprising means for stopping charging when the charging time has been reached.
回路において、 前記組電池に温度センサを接続し、その温度センサから
の温度を充電停止検出回路に入力する手段と、 充電前の組電池の温度毎の充電時間を予め測定したデー
タ群により、充電前の組電池の温度に対応させて充電時
間を変化させる手段を有することを特徴とする二次電池
の間欠充電回路。3. The intermittent charging circuit for a secondary battery according to claim 2, wherein a temperature sensor is connected to the battery pack, and a temperature from the temperature sensor is input to a charging stop detection circuit. An intermittent charging circuit for a rechargeable battery, comprising: means for changing a charging time in accordance with a temperature of the assembled battery before charging based on a data group in which a charging time for each temperature of the assembled battery is measured in advance.
構成される組電池と、前記組電池の開回路状態での開回
路電圧から充電量を検出する充電容量検出回路と、前記
組電池に充電電流を供給する電源回路と、組電池の温度
がある値を越えた時点で充電を停止させる充電停止検出
回路、充電制御スイッチ、温度センサからなり、 前記充電制御スイッチをオン・オフすることによって、
前記電源回路から前記組電池に充電電流の制御を行う動
作を前提にして、前記充電容量検出回路からの信号が充
電制御スイッチをオンし、前記充電停止検出回路からの
信号が充電制御スイッチをオフし、開回路状態である前
記組電池が自己放電によってある値まで容量が低下した
ことを充電容量検出回路で検出して、充電を開始し、前
記組電池が満充電になったことを充電停止検出回路が検
出して、充電を停止する二次電池の間欠充電回路におい
て、 前記組電池に温度センサを接続して、その温度センサか
らの温度を前記充電停止検出回路に入力する手段と、 前記組電池に充電電流を流した時の満充電になるときの
充電中の組電池温度を予め測定しておき、前記組電池温
度に達した時点で充電を停止させる手段を有することを
特徴とする二次電池の間欠充電回路。4. An assembled battery comprising at least one or more secondary batteries, a charge capacity detection circuit for detecting a charge amount from an open circuit voltage of the assembled battery in an open circuit state, and charging the assembled battery A power supply circuit that supplies current, a charge stop detection circuit that stops charging when the temperature of the battery pack exceeds a certain value, a charge control switch, and a temperature sensor, by turning on and off the charge control switch,
Assuming an operation of controlling the charging current from the power supply circuit to the battery pack, a signal from the charge capacity detection circuit turns on a charge control switch, and a signal from the charge stop detection circuit turns off the charge control switch. Then, the charge capacity detection circuit detects that the capacity of the battery pack in the open circuit state has decreased to a certain value due to self-discharge, starts charging, and stops charging when the battery pack is fully charged. An intermittent charging circuit for a secondary battery that detects a detection circuit and stops charging; a means for connecting a temperature sensor to the battery pack and inputting a temperature from the temperature sensor to the charging stop detection circuit; It is characterized by having a means for measuring in advance the battery temperature during charging when the battery pack is fully charged when a charging current is supplied to the battery pack, and stopping charging when the battery temperature is reached. two Intermittent charging circuit of the battery.
回路において、 充電前の組電池温度に対応する充電停止温度Ｈ１のデー
タ群を前記充電停止検出回路に記憶させ、前記組電池温
度に対応して前記充電停止温度を変化させる手段を有す
ることを特徴とする二次電池の間欠充電回路。5. The intermittent charging circuit according to claim 4, wherein a data group of a charging stop temperature H1 corresponding to an assembled battery temperature before charging is stored in the charging stop detecting circuit, An intermittent charging circuit for a secondary battery, comprising: means for changing the charging stop temperature in accordance with the following.
構成される組電池と、前記組電池の開回路状態での開回
路電圧から充電量を検出する充電容量検出回路と、前記
組電池に充電電流を供給する電源回路と、充電を制御す
る充電停止検出回路、充電制御スイッチからなり、 前記充電制御スイッチをオン・オフすることによって、
前記電源回路から前記組電池に充電電流の制御を行う動
作を前提にして、前記充電容量検出回路からの信号が充
電制御スイッチをオンし、前記充電停止検出回路からの
信号が充電制御スイッチをオフし、開回路状態である前
記組電池が自己放電によってある値まで容量が低下した
ことを充電容量検出回路で検出して、充電を開始し、前
記組電池が満充電になったことを充電停止検出回路が検
知して、充電を停止する二次電池の間欠充電回路におい
て、 前記充電停止検出回路は、 前記組電池に充電電流Ｉ０を流している時に、充電中の
前記組電池の電圧が最大値Ｖｐに達して、その後充電電
圧がある電圧（Ｖｐ−ΔＶ）まで低下した時点で充電を
停止させる第１の手段と、 前記組電池に充電電流Ｉ０を流した時の満充電になると
きの充電時間を予め測定しておき、前記充電時間に達し
た時点で充電を停止させる第２の手段とを有し、 前記第１の手段及び第２の手段のうちのどちらか先に充
電停止の条件になった時点で、充電を停止させる手段を
有することを特徴とする二次電池の間欠充電回路。6. A battery pack comprising at least one or more secondary batteries, a charge capacity detection circuit for detecting a charge amount from an open circuit voltage of the battery pack in an open circuit state, and charging the battery pack A power supply circuit for supplying current, a charge stop detection circuit for controlling charging, and a charge control switch, by turning on and off the charge control switch,
Assuming an operation of controlling the charging current from the power supply circuit to the battery pack, a signal from the charge capacity detection circuit turns on a charge control switch, and a signal from the charge stop detection circuit turns off the charge control switch. Then, the charge capacity detection circuit detects that the capacity of the battery pack in the open circuit state has decreased to a certain value due to self-discharge, starts charging, and stops charging when the battery pack is fully charged. In the intermittent charging circuit of the secondary battery, which is detected by the detection circuit and stops charging, the charging stop detection circuit is configured such that when the charging current I0 is flowing through the battery pack, the voltage of the battery pack being charged is maximum. First means for stopping charging when the charging voltage has dropped to a certain voltage (Vp-.DELTA.V) after reaching the value Vp, and when the battery is fully charged when charging current I0 is passed through the battery pack charging time A second means for measuring in advance and stopping charging at the time when the charging time has been reached, wherein the condition for stopping charging is set to one of the first means and the second means earlier. An intermittent charging circuit for rechargeable batteries, comprising means for stopping charging at a point in time.
構成される組電池と、前記組電池の開回路状態での開回
路電圧から充電量を検出する充電容量検出回路と、前記
組電池に充電電流を供給する電源回路と、充電を制御す
る充電停止検出回路、充電制御スイッチからなり、 前記充電制御スイッチをオン・オフすることによって、
前記電源回路から前記組電池に充電電流の制御を行う動
作を前提にして、前記充電容量検出回路からの信号が充
電制御スイッチをオンし、前記充電停止検出回路からの
信号が充電制御スイッチをオフし、開回路状態である前
記組電池が自己放電によってある値まで容量が低下した
ことを充電容量検出回路で検出して、充電を開始し、前
記組電池が満充電になったことを充電停止検出回路が検
知して、充電を停止する二次電池の間欠充電回路におい
て、 前記充電停止検出回路は、 前記組電池に充電電流Ｉ０を流している時に、充電中の
前記組電池の電圧が最大値Ｖｐに達して、その後充電電
圧がある電圧（Ｖｐ−ΔＶ）まで低下した時点で充電を
停止させる第１の手段と、 前記組電池に温度センサを接続して、その温度センサか
らの温度を前記充電停止検出回路に入力し、前記組電池
に充電電流を流した時の満充電になるときの充電中の組
電池温度を予め測定しておき、前記組電池温度に達した
時点で充電を停止させる第３の手段とを有し、 前記第１の手段及び第３の手段のうちのどちらか先に充
電停止の条件になった時点で、充電を停止させる手段を
有することを特徴とする二次電池の間欠充電回路。7. A battery pack comprising at least one or more secondary batteries, a charge capacity detection circuit for detecting a charge amount from an open circuit voltage of the battery pack in an open circuit state, and charging the battery pack A power supply circuit for supplying current, a charge stop detection circuit for controlling charging, and a charge control switch, by turning on and off the charge control switch,
Assuming an operation of controlling the charging current from the power supply circuit to the battery pack, a signal from the charge capacity detection circuit turns on a charge control switch, and a signal from the charge stop detection circuit turns off the charge control switch. Then, the charge capacity detection circuit detects that the capacity of the battery pack in the open circuit state has decreased to a certain value due to self-discharge, starts charging, and stops charging when the battery pack is fully charged. In the intermittent charging circuit of the secondary battery, which is detected by the detection circuit and stops charging, the charging stop detection circuit is configured such that when the charging current I0 is flowing through the battery pack, the voltage of the battery pack being charged is maximum. First means for stopping charging when the charging voltage reaches a value Vp, and thereafter when the charging voltage drops to a certain voltage (Vp-ΔV); and connecting a temperature sensor to the battery pack to measure the temperature from the temperature sensor. Previous Input to the charge stop detection circuit, measure the temperature of the battery pack during charging when the battery pack is fully charged when applying the charging current to the battery pack, and stop charging when the battery pack temperature is reached. And a means for stopping the charging when the condition for stopping the charging has been reached earlier in one of the first means and the third means. Intermittent charging circuit for the next battery.
構成される組電池と、前記組電池の開回路状態での開回
路電圧から充電量を検出する充電容量検出回路と、前記
組電池に充電電流を供給する電源回路と、充電を制御す
る充電停止検出回路、充電制御スイッチからなり、 前記充電制御スイッチをオン・オフすることによって、
前記電源回路から前記組電池に充電電流の制御を行う動
作を前提にして、前記充電容量検出回路からの信号が充
電制御スイッチをオンし、前記充電停止検出回路からの
信号が充電制御スイッチをオフし、開回路状態である前
記組電池が自己放電によってある値まで容量が低下した
ことを充電容量検出回路で検出して、充電を開始し、前
記組電池が満充電になったことを充電停止検出回路が検
知して、充電を停止する二次電池の間欠充電回路におい
て、 前記充電停止検出回路は、 前記組電池に充電電流Ｉ０を流した時の満充電になると
きの充電時間を予め測定しておき、前記充電時間に達し
た時点で充電を停止させる第２の手段と、 前記組電池に温度センサを接続して、その温度センサか
らの温度を前記充電停止検出回路に入力し、前記組電池
に充電電流を流した時の満充電になるときの充電中の組
電池温度を予め測定しておき、前記組電池温度に達した
時点で充電を停止させる第３の手段とを有し、 前記第２の手段及び第３の手段のうちのどちらか先に充
電停止の条件になった時点で、充電を停止させる手段を
有することを特徴とする二次電池の間欠充電回路。8. A battery pack comprising at least one or more secondary batteries, a charge capacity detection circuit for detecting a charge amount from an open circuit voltage of the battery pack in an open circuit state, and charging the battery pack A power supply circuit for supplying current, a charge stop detection circuit for controlling charging, and a charge control switch, by turning on and off the charge control switch,
Assuming an operation of controlling the charging current from the power supply circuit to the battery pack, a signal from the charge capacity detection circuit turns on a charge control switch, and a signal from the charge stop detection circuit turns off the charge control switch. Then, the charge capacity detection circuit detects that the capacity of the battery pack in the open circuit state has decreased to a certain value due to self-discharge, starts charging, and stops charging when the battery pack is fully charged. In the intermittent charging circuit of a secondary battery which detects and stops charging by a detection circuit, the charging stop detection circuit previously measures a charging time when the battery pack is fully charged when a charging current I0 is supplied to the battery pack. In addition, a second means for stopping charging when the charging time has been reached, and connecting a temperature sensor to the battery pack, inputting a temperature from the temperature sensor to the charging stop detection circuit, Assembly And a third means for measuring in advance the battery temperature during charging when the battery is fully charged when a charging current is supplied to the battery, and stopping charging when the battery temperature reaches the battery temperature, An intermittent charging circuit for a secondary battery, comprising: means for stopping charging when the condition for stopping charging is reached in any one of the second means and the third means.
構成される組電池と、前記組電池の開回路状態での開回
路電圧から充電量を検出する充電容量検出回路と、前記
組電池に充電電流を供給する電源回路と、充電を制御す
る充電停止検出回路、充電制御スイッチからなり、 前記充電制御スイッチをオン・オフすることによって、
前記電源回路から前記組電池に充電電流の制御を行う動
作を前提にして、前記充電容量検出回路からの信号が充
電制御スイッチをオンし、前記充電停止検出回路からの
信号が充電制御スイッチをオフし、開回路状態である前
記組電池が自己放電によってある値まで容量が低下した
ことを充電容量検出回路で検出して、充電を開始し、前
記組電池が満充電になったことを充電停止検出回路が検
知して、充電を停止する二次電池の間欠充電回路におい
て、 前記充電停止検出回路は、 前記組電池に充電電流Ｉ０を流している時に、充電中の
前記組電池の電圧が最大値Ｖｐに達して、その後充電電
圧がある電圧（Ｖｐ−ΔＶ）まで低下した時点で充電を
停止させる第１の手段と、 前記組電池に充電電流Ｉ０を流した時の満充電になると
きの充電時間を予め測定しておき、前記充電時間に達し
た時点で充電を停止させる第２の手段と、 前記組電池に温度センサを接続して、その温度センサか
らの温度を前記充電停止検出回路に入力し、前記組電池
に充電電流を流した時の満充電になるときの充電中の組
電池温度を予め測定しておき、前記組電池温度に達した
時点で充電を停止させる第３の手段とを有し、 前記第１の手段、第２の手段及び第３の手段のうちの最
先に充電停止の条件になった時点で、充電を停止させる
手段を有することを特徴とする二次電池の間欠充電回
路。9. A battery pack comprising at least one or more secondary batteries, a charge capacity detection circuit for detecting a charge amount from an open circuit voltage of the battery pack in an open circuit state, and charging the battery pack A power supply circuit for supplying current, a charge stop detection circuit for controlling charging, and a charge control switch, by turning on and off the charge control switch,
Assuming an operation of controlling the charging current from the power supply circuit to the battery pack, a signal from the charge capacity detection circuit turns on a charge control switch, and a signal from the charge stop detection circuit turns off the charge control switch. Then, the charge capacity detection circuit detects that the capacity of the battery pack in the open circuit state has decreased to a certain value due to self-discharge, starts charging, and stops charging when the battery pack is fully charged. In the intermittent charging circuit of the secondary battery, which is detected by the detection circuit and stops charging, the charging stop detection circuit is configured such that when the charging current I0 is flowing through the battery pack, the voltage of the battery pack being charged is maximum. First means for stopping charging when the charging voltage has dropped to a certain voltage (Vp-.DELTA.V) after reaching the value Vp, and when the battery is fully charged when charging current I0 is passed through the battery pack charging time A second means for measuring in advance and stopping charging when the charging time is reached, and connecting a temperature sensor to the battery pack and inputting a temperature from the temperature sensor to the charging stop detection circuit. A third means for measuring in advance the battery temperature during charging when the battery pack is fully charged when a charging current is supplied to the battery pack, and stopping charging when the battery temperature is reached. And a means for stopping charging when the condition for stopping charging is first reached among the first means, the second means, and the third means. Intermittent charging circuit.
る組電池が開回路状態で自己放電によってある値まで充
電容量が低下したことを検出して充電を開始するステッ
プと、前記組電池が満充電になったことを検出して充電
を停止するステップよりなる二次電池の間欠充電方法に
おいて、 前記組電池に充電電流Ｉ０を流している時に、充電中の
前記組電池の電圧が最大値Ｖｐに達して、その後充電電
圧がある電圧（Ｖｐ−ΔＶ）まで低下した時点で充電を
停止させるステップを有することを特徴とする二次電池
の間欠充電方法。10. A step of detecting that the assembled battery comprising at least one or more secondary batteries has decreased in charge capacity to a certain value by self-discharge in an open circuit state and starting charging, and In the intermittent charging method for a secondary battery, comprising the steps of detecting charging and stopping charging, the voltage of the battery pack being charged has a maximum value Vp when a charging current I0 is flowing through the battery pack. And then stopping charging when the charging voltage has dropped to a certain voltage (Vp-ΔV) thereafter.
る組電池が開回路状態で自己放電によってある値まで充
電容量が低下したことを検出して充電を開始するステッ
プと、前記組電池が満充電になったことを検出して充電
を停止するステップよりなる二次電池の間欠充電方法に
おいて、 前記組電池に充電電流Ｉ０を流した時の満充電になると
きの充電時間を予め測定しておき、前記充電時間に達し
た時点で充電を停止させるステップを有することを特徴
とする二次電池の間欠充電方法。11. A step of detecting that the charge capacity of the battery pack including at least one or more secondary batteries has decreased to a certain value due to self-discharge in an open circuit state, and starting charging, and In the intermittent charging method for a secondary battery, comprising the steps of detecting charging and stopping charging, the charging time when the battery pack is fully charged when a charging current I0 is supplied to the battery pack is measured in advance. Intermittently charging the secondary battery when the charging time has been reached.
方法において、 充電前の組電池の温度毎の充電時間を予め測定したデー
タ群により、充電前の組電池の温度に対応させて充電時
間を変化させるステップを有することを特徴とする二次
電池の間欠充電方法。12. The method of intermittent charging of a secondary battery according to claim 11, wherein charging is performed in accordance with the temperature of the assembled battery before charging by a data group in which the charging time for each temperature of the assembled battery before charging is measured in advance. An intermittent charging method for a secondary battery, comprising a step of changing time.
る組電池が開回路状態で自己放電によってある値まで充
電容量が低下したことを検出して充電を開始するステッ
プと、前記組電池が満充電になったことを検出して充電
を停止するステップよりなる二次電池の間欠充電方法に
おいて、 前記組電池に充電電流を流した時の満充電になるときの
充電中の組電池温度を予め測定しておき、前記組電池温
度に達した時点で充電を停止させるステップを有するこ
とを特徴とする二次電池の間欠充電方法。13. A battery comprising at least one or more rechargeable batteries in an open circuit state, detecting that the charge capacity has decreased to a certain value due to self-discharge, and starting charging. In the intermittent charging method for a secondary battery, comprising the steps of detecting charging and stopping charging, the temperature of the battery pack during charging when the battery pack is fully charged when a charging current is supplied to the battery pack is determined in advance. A method of intermittently charging a secondary battery, comprising a step of measuring and stopping charging when the temperature of the assembled battery is reached.
方法において、 充電前の組電池温度に対応する充電停止温度Ｈ１のデー
タ群を記憶させ、前記組電池温度に対応して前記充電停
止温度を変化させるステップを有することを特徴とする
二次電池の間欠充電方法。14. The intermittent charging method for a secondary battery according to claim 13, wherein a data group of a charging stop temperature H1 corresponding to a battery pack temperature before charging is stored, and said charging stop corresponding to said battery pack temperature. An intermittent charging method for a secondary battery, comprising a step of changing a temperature.
る組電池が開回路状態で自己放電によってある値まで充
電容量が低下したことを検出して充電を開始するステッ
プと、前記組電池が満充電になったことを検出して充電
を停止するステップよりなる二次電池の間欠充電方法に
おいて、 前記組電池に充電電流Ｉ０を流している時に、充電中の
前記組電池の電圧が最大値Ｖｐに達して、その後充電電
圧がある電圧（Ｖｐ−ΔＶ）まで低下した時点で充電を
停止させる第１のステップと、 前記組電池に充電電流Ｉ０を流した時の満充電になると
きの充電時間を予め測定しておき、前記充電時間に達し
た時点で充電を停止させる第２のステップと、 前記第１のステップ及び第２のステップのうちのどちら
か先に充電停止の条件になった時点で、充電を停止させ
るステップを有することを特徴とする二次電池の間欠充
電方法。15. A step of detecting that a charged capacity of a battery pack composed of at least one or more secondary batteries has decreased to a certain value due to self-discharge in an open circuit state and starting charging, and wherein the battery pack is fully charged. In the intermittent charging method for a secondary battery, comprising the steps of detecting charging and stopping charging, the voltage of the battery pack being charged has a maximum value Vp when a charging current I0 is flowing through the battery pack. And a first step of stopping charging when the charging voltage drops to a certain voltage (Vp−ΔV), and a charging time when the battery pack is fully charged when a charging current I0 is supplied to the battery pack Is measured in advance, and charging is stopped at the time when the charging time is reached, and at the time when the condition for stopping charging is reached in one of the first step and the second step. And charge Intermittent charging method for secondary battery, comprising the step of stopping.
る組電池が開回路状態で自己放電によってある値まで充
電容量が低下したことを検出して充電を開始するステッ
プと、前記組電池が満充電になったことを検出して充電
を停止するステップよりなる二次電池の間欠充電方法に
おいて、 前記組電池に充電電流Ｉ０を流している時に、充電中の
前記組電池の電圧が最大値Ｖｐに達して、その後充電電
圧がある電圧（Ｖｐ−ΔＶ）まで低下した時点で充電を
停止させる第１のステップと、 前記組電池に充電電流を流した時の満充電になるときの
充電中の組電池温度を予め測定しておき、前記組電池温
度に達した時点で充電を停止させる第３のステップと、 前記第１のステップ及び第３のステップのうちのどちら
か先に充電停止の条件になった時点で、充電を停止させ
るステップを有することを特徴とする二次電池の間欠充
電方法。16. A step of detecting that a charge capacity of a battery pack composed of at least one or more secondary batteries has decreased to a certain value due to self-discharge in an open circuit state and starting charging; In the intermittent charging method for a secondary battery, comprising the steps of detecting charging and stopping charging, the voltage of the battery pack being charged has a maximum value Vp when a charging current I0 is flowing through the battery pack. And then stops charging when the charging voltage drops to a certain voltage (Vp-ΔV); and during charging when a full charge is made when a charging current is applied to the battery pack, A third step of measuring the temperature of the battery pack in advance and stopping charging when the temperature of the battery pack has been reached; and a condition for stopping charging before any one of the first and third steps. When it became In the intermittent charging method for secondary battery, comprising the step of stopping the charging.
る組電池が開回路状態で自己放電によってある値まで充
電容量が低下したことを検出して充電を開始するステッ
プと、前記組電池が満充電になったことを検出して充電
を停止するステップよりなる二次電池の間欠充電方法に
おいて、 前記組電池に充電電流Ｉ０を流した時の満充電になると
きの充電時間を予め測定しておき、前記充電時間に達し
た時点で充電を停止させる第２のステップと、 前記組電池に充電電流を流した時の満充電になるときの
充電中の組電池温度を予め測定しておき、前記組電池温
度に達した時点で充電を停止させる第３のステップと、 前記第２のステップ及び第３のステップのうちのどちら
か先に充電停止の条件になった時点で、充電を停止させ
るステップを有することを特徴とする二次電池の間欠充
電方法。17. A step of detecting that a charged capacity of a battery pack including at least one or more secondary batteries has decreased to a certain value by self-discharge in an open circuit state and starting charging; In the intermittent charging method for a secondary battery, comprising the steps of detecting charging and stopping charging, the charging time when the battery pack is fully charged when a charging current I0 is supplied to the battery pack is measured in advance. A second step of stopping charging when the charging time has been reached, and previously measuring a battery temperature during charging when the battery is fully charged when a charging current is passed through the battery, A third step of stopping charging when the temperature of the battery pack is reached, and stopping charging when the condition for stopping charging is reached in one of the second step and the third step. Have steps Intermittent charging method for a secondary battery.
る組電池が開回路状態で自己放電によってある値まで充
電容量が低下したことを検出して充電を開始するステッ
プと、前記組電池が満充電になったことを検出して充電
を停止するステップよりなる二次電池の間欠充電方法に
おいて、 前記組電池に充電電流Ｉ０を流している時に、充電中の
前記組電池の電圧が最大値Ｖｐに達して、その後充電電
圧がある電圧（Ｖｐ−ΔＶ）まで低下した時点で充電を
停止させる第１のステップと、 前記組電池に充電電流Ｉ０を流した時の満充電になると
きの充電時間を予め測定しておき、前記充電時間に達し
た時点で充電を停止させる第２のステップと、 前記組電池に充電電流を流した時の満充電になるときの
充電中の組電池温度を予め測定しておき、前記組電池温
度に達した時点で充電を停止させる第３のステップと、 前記第１のステップ、第２のステップ及び第３のステッ
プのうちの最先に充電停止の条件になった時点で、充電
を停止させるステップを有することを特徴とする二次電
池の間欠充電方法。18. A step of detecting that a charged capacity of at least one or more secondary batteries has decreased to a certain value due to self-discharge in an open circuit state and starting charging, and wherein the battery is fully charged. In the intermittent charging method for a secondary battery, comprising the steps of detecting charging and stopping charging, the voltage of the battery pack being charged has a maximum value Vp when a charging current I0 is flowing through the battery pack. And a first step of stopping charging when the charging voltage drops to a certain voltage (Vp−ΔV), and a charging time when the battery pack is fully charged when a charging current I0 is supplied to the battery pack Is measured in advance, and the second step of stopping charging when the charging time has been reached, and the battery pack temperature during charging when the battery pack is fully charged when a charging current is passed through the battery pack is determined in advance. Measure it, A third step of stopping charging at the time when the battery temperature reaches the assembled battery temperature; and a point of time when the condition for stopping charging is first reached among the first step, the second step, and the third step, An intermittent charging method for a secondary battery, comprising a step of stopping charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10024455A JPH11225445A (en) | 1998-02-05 | 1998-02-05 | Intermittent charging method and intermittent charging circuit for secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10024455A JPH11225445A (en) | 1998-02-05 | 1998-02-05 | Intermittent charging method and intermittent charging circuit for secondary battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11225445A true JPH11225445A (en) | 1999-08-17 |
Family
ID=12138648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10024455A Pending JPH11225445A (en) | 1998-02-05 | 1998-02-05 | Intermittent charging method and intermittent charging circuit for secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11225445A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009011082A (en) * | 2007-06-28 | 2009-01-15 | Nippon Telegr & Teleph Corp <Ntt> | Power supply system |
| JP2015038643A (en) * | 2010-06-29 | 2015-02-26 | 株式会社東芝 | Auxiliary power supply control circuit, storage device, auxiliary power supply control method |
-
1998
- 1998-02-05 JP JP10024455A patent/JPH11225445A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009011082A (en) * | 2007-06-28 | 2009-01-15 | Nippon Telegr & Teleph Corp <Ntt> | Power supply system |
| JP2015038643A (en) * | 2010-06-29 | 2015-02-26 | 株式会社東芝 | Auxiliary power supply control circuit, storage device, auxiliary power supply control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5694023A (en) | Control and termination of a battery charging process | |
| US7557539B2 (en) | Charging device | |
| KR100393436B1 (en) | Method for rapid charge of battery | |
| JP2003132960A (en) | Method for detecting charged state of storage battery used for power supply system, and method for deciding degradation of storage battery | |
| JP2000121710A (en) | Battery control device for backup power supply and method for diagnosing deterioration of secondary battery | |
| JP3539123B2 (en) | Method and apparatus for determining deterioration of secondary battery | |
| JP2002354698A (en) | Control circuit | |
| JP3537120B2 (en) | Deterioration determination method for secondary battery and circuit thereof | |
| JPH0787673A (en) | Charging controlling system | |
| JPS6255274B2 (en) | ||
| US5691624A (en) | Method and apparatus for detecting a full-charge condition while charging a battery | |
| JPH11225445A (en) | Intermittent charging method and intermittent charging circuit for secondary battery | |
| JP2002170599A (en) | Monitor, controller, and battery module | |
| JPH09117074A (en) | Intermittent charging circuit for secondary battery | |
| JP2000182677A (en) | Secondary battery charging device | |
| JPH10322917A (en) | Deterioration discrimination for secondary battery and device thereof | |
| JPH05236662A (en) | Charging system for lead storage battery | |
| JP3917046B2 (en) | Charging circuit, charging method, and portable terminal equipped with the charging circuit | |
| KR20170010030A (en) | Uninterruptible power sypply and method for extending battery life | |
| JP3767112B2 (en) | Secondary battery charging control method and charging device therefor | |
| JP2988670B2 (en) | Secondary battery charge control method | |
| JPH08293329A (en) | Deterioration judging method for secondary battery, and deterioration judging circuit | |
| JPH08317571A (en) | Charger circuit of secondary battery | |
| JPS5841368A (en) | Battery capacity tester | |
| JPH08126220A (en) | Charging circuit for secondary battery |