【０００１】[0001]
【産業上の利用分野】本発明は、停電バックアップ電源
の組電池構成法に係わり、特にバックアップ機能を継続
したまま電池の保有電力量を自動的に計測する放電容量
試験方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a battery pack for a power failure backup power supply, and more particularly to a discharge capacity test method for automatically measuring the amount of power stored in a battery while continuing the backup function.
【０００２】[0002]
【従来の技術】図３は、従来の停電バックアップ電源の
一例を示す回路図である。2. Description of the Related Art FIG. 3 is a circuit diagram showing an example of a conventional power failure backup power supply.
【０００３】この従来例において、２次電池セルが直列
接続されて２次電池セル列Ａ１、Ａ２、Ａ３を構成し、
２次電池セル列Ａ１、Ａ２、Ａ３が並列接続されて組電
池Ｂを構成している。また、２次電池セル列Ａ１、Ａ
２、Ａ３の充電電流が過大になることを防止するために
電流制限抵抗Ｒ１、Ｒ２、Ｒ３が設けられ、２次電池セ
ル列Ａ１、Ａ２、Ａ３相互間で逆電流が流れることを防
止するためにダイオードＤ１、Ｄ２、Ｄ３が設けられ、
充電回路Ｃは、入力電源Ｅの電圧を、２次電池セル列Ａ
１、Ａ２、Ａ３を充電する電圧に整合し、負荷Ｌに供給
する電圧を出力電圧安定化回路Ｓが安定化している。In this conventional example, secondary battery cells are connected in series to form a secondary battery cell array A1, A2, A3,
Secondary battery cell rows A1, A2, and A3 are connected in parallel to form an assembled battery B. In addition, the secondary battery cell rows A1 and A
In order to prevent the charging current of 2 and A3 from becoming excessive, current limiting resistors R1, R2 and R3 are provided to prevent reverse current from flowing between the secondary battery cell rows A1, A2 and A3. Are provided with diodes D1, D2, D3,
The charging circuit C changes the voltage of the input power source E to the secondary battery cell array A
The output voltage stabilizing circuit S stabilizes the voltage supplied to the load L, which matches the voltage for charging 1, A2, and A3.
【０００４】この従来例において、通常状態（入力電源
Ｅの電圧が正常な状態）では、充電回路Ｃによって、組
電池Ｂ内の２次電池セル列Ａ１〜Ａ３を充電するに適当
な電圧に入力電源Ｅの出力電圧が整合され、抵抗Ｒ１〜
Ｒ３を介して組電池Ｂの充電を行い、停電状態（入力電
源Ｅが停止した状態）では、組電池ＢからダイオードＤ
１〜Ｄ３を経由して負荷Ｌに電力が供給されるととも
に、出力電圧安定化回路Ｓが、負荷Ｌが必要とする電圧
に組電池Ｂの端子電圧を整合させて出力する。In this conventional example, in a normal state (a state in which the voltage of the input power source E is normal), the charging circuit C inputs a voltage suitable for charging the secondary battery cell rows A1 to A3 in the assembled battery B. The output voltage of the power supply E is matched, and the resistors R1 to R1 are connected.
The battery pack B is charged via R3, and in the power failure state (the state where the input power supply E is stopped), the battery pack B is connected to the diode D.
Power is supplied to the load L via 1 to D3, and the output voltage stabilizing circuit S matches the terminal voltage of the assembled battery B with the voltage required by the load L and outputs the voltage.
【０００５】また、組電池Ｂは、負荷Ｌが必要とする電
力と、出力電圧安定化回路Ｓで消費される電力損失と、
ダイオードＤ１〜Ｄ３の順方向電圧降下による電力損失
との合計電力に、保証すべき許容停電継続時間を乗じて
得られる必要電力容量を保有している必要がある。さら
に、組電池Ｂを構成する２次電池セルは時間の経過とと
もに経年劣化によってその最大保有電力容量が減少する
ので、必要期間に劣化して減少する電力容量分を当初か
ら余分に含んだ初期電力容量を、組電池Ｂに準備してお
く必要がある。このように組電池を構成することによっ
て、バックアップ電源は、必要期間において許容停電継
続時間、停電バックアップを持続することが可能とな
る。The assembled battery B has a power required by the load L and a power loss consumed in the output voltage stabilizing circuit S,
It is necessary to have a necessary power capacity obtained by multiplying the total power including the power loss due to the forward voltage drop of the diodes D1 to D3 by the allowable power failure duration time to be guaranteed. Further, since the maximum power capacity of the secondary battery cells that form the battery pack B decreases over time due to deterioration over time, the initial power that includes an extra amount of power capacity that deteriorates and decreases during the required period from the beginning. It is necessary to prepare the capacity of the assembled battery B in advance. By configuring the assembled battery in this way, the backup power supply can continue the allowable power outage duration and the power outage backup in the required period.
【０００６】[0006]
【発明が解決しようとする課題】ところで、２次電池セ
ルが劣化する特性は、その２次電池セルが置かれている
温湿度環境条件、充放電回数等に影響されるので、ある
時点において組電池Ｂの保有電力が必要電力容量を実際
に保有しているか否かについては、その組電池Ｂを実際
に放電することによって、放電容量試験（保有電力量の
計測）を実施しなければ確定できない。この場合、放電
容量試験のために組電池Ｂを放電すると、組電池Ｂの再
充電が完了するまでの間は、バックアップ機能が低下ま
たは停止することになる。By the way, since the characteristics of the deterioration of the secondary battery cell are affected by the temperature and humidity environmental conditions in which the secondary battery cell is placed, the number of times of charging and discharging, etc. Whether or not the power held by the battery B actually holds the required power capacity cannot be determined unless the discharge capacity test (measurement of the amount of power held) is performed by actually discharging the battery pack B. . In this case, when the assembled battery B is discharged for the discharge capacity test, the backup function is lowered or stopped until the recharge of the assembled battery B is completed.
【０００７】上記従来例においては、放電容量試験時に
バックアップ機能の低下または停止を阻止するために、
放電容量試験中またはその試験の直後であって組電池Ｂ
が再充電されていない間に、停電が発生しても支障が生
じないように、組電池Ｂと同等以上の電力容量を有する
充電された組電池を予備として事前に用意し、この予備
の組電池と実際の組電池Ｂとを交換または並列接続した
後に、放電容量試験を実施している。しかし、上記のよ
うに予備の組電池と実際の組電池Ｂとを交換または並列
接続した後に、放電容量試験を実施するようにすると、
予備の組電池分のコストの上昇、設置スペースの増大と
いう問題が生じる。In the above conventional example, in order to prevent the backup function from being deteriorated or stopped during the discharge capacity test,
Battery B during the discharge capacity test or immediately after that test
In order not to cause trouble even if a power failure occurs while the battery pack is not recharged, a charged battery pack having a power capacity equal to or higher than that of the battery pack B is prepared in advance as a spare, and this spare battery pack is used. The discharge capacity test is performed after the battery and the actual assembled battery B are exchanged or connected in parallel. However, when the spare battery pack and the actual battery pack B are exchanged or connected in parallel as described above and then the discharge capacity test is carried out,
There is a problem that the cost of the spare assembled battery increases and the installation space increases.
【０００８】本発明は、予備の組電池を設けなくても、
バックアップ機能を確保することができる組電池の放電
容量試験方法を提供することを目的とするものである。According to the present invention, even if a spare assembled battery is not provided,
It is an object of the present invention to provide a method for testing a discharge capacity of an assembled battery that can ensure a backup function.
【０００９】[0009]
【課題を解決するための手段】請求項１に記載の発明
は、２次電池セル列を１つ以上冗長に具備するように組
電池を構成し、組電池を充電した後、組電池内の冗長な
数の２次電池セル列を選択し、この選択された２次電池
セル列を放電したときの放電電力量を計測することによ
って、２次電池セル列の保有電力量を求める方法であ
る。According to a first aspect of the present invention, an assembled battery is constructed so that one or more secondary battery cell rows are redundantly provided, and after the assembled battery is charged, This is a method of determining the retained power amount of the secondary battery cell array by selecting a redundant number of secondary battery cell arrays and measuring the discharge power amount when the selected secondary battery cell array is discharged. .
【００１０】請求項２に記載の発明は、請求項１に記載
の発明にさらに、放電した２次電池セル列を再充電した
後に、保有電力量を求めた２次電池セル列以外の２次電
池セル列のそれぞれについて、上記放電、上記放電電力
量の計測、上記再充電の一連の動作を、順次実行するこ
とによって、組電池全体の放電容量試験を行う方法であ
る。According to a second aspect of the present invention, in addition to the first aspect of the invention, the secondary battery cells other than the secondary battery cell row in which the stored electric energy is obtained after the discharged secondary battery cell row is recharged This is a method of performing a discharge capacity test of the entire assembled battery by sequentially performing a series of operations of the discharging, measuring the discharging power amount, and recharging for each of the battery cell rows.
【００１１】[0011]
【作用】請求項１に記載の発明は、２次電池セル列を１
つ以上冗長に具備するように組電池を構成し、組電池を
充電した後、組電池内の冗長な数の２次電池セル列を選
択し、この選択された２次電池セル列を放電したときの
放電電力量を計測することによって、２次電池セル列の
保有電力量を求めるので、予備の組電池を設けなくて
も、組電池のバックアップ機能を確保することができ、
しかも、組電池を構成する複数の２次電池セル列を同時
期に設置すれば、各２次電池セル列の放電容量は互いに
ほぼ同じであることが多いことから、１つの２次電池セ
ル列のみを放電させ、その放電量を測定し、他の２次電
池セル列の放電量もそれと同じであると仮定するれば、
放電容量の測定操作が容易である。According to the first aspect of the present invention, the secondary battery cell array is
After constructing the assembled battery so as to be redundantly provided with one or more batteries, charging the assembled battery, selecting a redundant number of secondary battery cell columns in the assembled battery, and discharging the selected secondary battery cell column. Since the amount of electric power possessed by the secondary battery cell array is obtained by measuring the amount of discharged electric power at that time, the backup function of the assembled battery can be secured without providing a spare assembled battery.
Moreover, if a plurality of rechargeable battery cell arrays that form an assembled battery are installed at the same time, the discharge capacities of the rechargeable battery cell arrays are often almost the same, so that one rechargeable battery cell array is used. Discharge only, measure the discharge amount, and assume that the discharge amount of other secondary battery cell rows is the same,
The operation of measuring the discharge capacity is easy.
【００１２】請求項２に記載の発明は、全ての２次電池
セル列について、放電、放電電力量の計測、再充電の一
連の動作を、順次実行することによって、組電池全体の
放電容量試験を行うので、予備の組電池を設けなくて
も、組電池のバックアップ機能を確保することができ、
しかも、より確実な放電容量測定データを得ることがで
きる。According to a second aspect of the present invention, the discharge capacity test of the entire assembled battery is performed by sequentially performing a series of operations of discharging, measuring the amount of discharged power, and recharging all the secondary battery cell rows. Therefore, the backup function of the assembled battery can be secured without providing a spare assembled battery,
Moreover, more reliable discharge capacity measurement data can be obtained.
【００１３】[0013]
【実施例】図１は、本発明の一実施例を示す回路図であ
る。FIG. 1 is a circuit diagram showing an embodiment of the present invention.
【００１４】この実施例は、互いに直列接続された複数
の２次電池セルで構成された２次電池セル列Ａ１、Ａ
２、Ａ３〜Ａｎが並列接続されることによって組電池Ｂ
１が構成され、この組電池Ｂ１に蓄積された電力によっ
て、電源の持続性を保証する停電バックアップ電源であ
る。In this embodiment, a secondary battery cell array A1, A composed of a plurality of secondary battery cells connected in series with each other.
2, A3 to An are connected in parallel to form an assembled battery B
1 is a power failure backup power source that guarantees the sustainability of the power source by the power stored in the battery pack B1.
【００１５】２次電池セル列Ａ１、Ａ２、Ａ３〜Ａｎ
は、それぞれ、２次電池セルが複数直列接続されたもの
であり、組電池Ｂ１は、２次電池セル列Ａ１、Ａ２、Ａ
３〜Ａｎが互いに並列接続されたものであり、２次電池
セル列Ａ１、Ａ２、Ａ３〜Ａｎの１つを除外しても所定
時間のバックアップ動作が可能なように、１つの２次電
池セル列が冗長なものである。Secondary battery cell rows A1, A2, A3 to An
Is a plurality of secondary battery cells connected in series, and the assembled battery B1 is a secondary battery cell array A1, A2, A.
3 to An are connected in parallel with each other, and one secondary battery cell is provided so that a backup operation for a predetermined time is possible even if one of the secondary battery cell rows A1, A2, A3 to An is excluded. The columns are redundant.
【００１６】電流制限抵抗Ｒ１、Ｒ２、Ｒ３〜Ｒｎは、
それぞれ２次電池セル列Ａ１、Ａ２、Ａ３〜Ａｎへの充
電電流が過大になることを防止する抵抗であり、ダイオ
ードＤ１、Ｄ２、Ｄ３〜Ｄｎは、充電回路Ｃまたは２次
電池セル列Ａ１、Ａ２、Ａ３〜Ａｎから出力電圧安定化
回路Ｓ側に電流が流れるように接続され、２次電池セル
列Ａ１、Ａ２、Ａ３〜Ａｎ相互間で逆電流が流れること
を防止するダイオードである。また、充電回路Ｃは、入
力電源Ｅの出力電圧を昇圧したり降圧することによっ
て、入力電源Ｅの出力電圧を、２次電池セル列Ａ１、Ａ
２、Ａ３〜Ａｎを充電する電圧に整合する回路であり、
出力電圧安定化回路Ｓは、負荷Ｌに供給する電圧を安定
化する回路である。放電容量測定回路Ｊは、放電してい
る２次電池セル列の放電容量を測定する回路であり、た
とえば、図示しない所定の負荷に放電電流を流したとき
の電流値と、この負荷の両端電圧と、放電時間とに基づ
いて電力容量を計測し、この測定データを出力するもの
である。The current limiting resistors R1, R2, R3 to Rn are
The diodes D1, D2, D3 to Dn are resistors for preventing the charging current to the secondary battery cell rows A1, A2, A3 to An from becoming excessive, and the diodes D1, D2, D3 to Dn are the charging circuit C or the secondary battery cell row A1, It is a diode that is connected so that a current flows from A2, A3 to An to the output voltage stabilizing circuit S side and that prevents a reverse current from flowing between the secondary battery cell arrays A1, A2, and A3 to An. In addition, the charging circuit C raises or lowers the output voltage of the input power source E to output the output voltage of the input power source E to the secondary battery cell rows A1 and A.
2, a circuit that matches the voltage for charging A3 to An,
The output voltage stabilizing circuit S is a circuit that stabilizes the voltage supplied to the load L. The discharge capacity measuring circuit J is a circuit for measuring the discharge capacity of a secondary battery cell row that is discharging, and for example, the current value when a discharge current is applied to a predetermined load (not shown) and the voltage across the load. And the discharge time, the power capacity is measured, and this measurement data is output.
【００１７】スイッチＳ１は、２次電池セル列Ａ１を充
電回路Ｃと放電容量測定回路Ｊとに切り換えるものであ
り、スイッチＳ２は、２次電池セル列Ａ２を充電回路Ｃ
と放電容量測定回路Ｊとに切り換えるものであり、スイ
ッチＳ３は、２次電池セル列Ａ３を充電回路Ｃと放電容
量測定回路Ｊとに切り換えるものであり、スイッチＳｎ
は、２次電池セル列Ａｎを充電回路Ｃと放電容量測定回
路Ｊとに切り換えるものである。The switch S1 switches the secondary battery cell array A1 between the charging circuit C and the discharge capacity measuring circuit J, and the switch S2 switches the secondary battery cell array A2 to the charging circuit C.
And the discharge capacity measuring circuit J, and the switch S3 switches the secondary battery cell array A3 between the charging circuit C and the discharge capacity measuring circuit J.
Is for switching the secondary battery cell array An to the charging circuit C and the discharge capacity measuring circuit J.
【００１８】次に、上記実施例の動作について説明す
る。Next, the operation of the above embodiment will be described.
【００１９】まず、スイッチＳ１〜Ｓｎの全てを充電回
路Ｃ側に切り換えておき、入力電源Ｅの出力電圧が正常
であれば、この出力電圧を充電回路Ｃが、組電池Ｂ１内
の２次電池セル列Ａ１〜Ａｎを充電するに適当な電圧に
整合し、抵抗Ｒ１〜Ｒｎを介して充電する。この結果、
最終的には組電池Ｂ１が満充電になる（組電池Ｂ１が完
全に充電された状態になる）。First, all the switches S1 to Sn are switched to the charging circuit C side, and if the output voltage of the input power source E is normal, the charging circuit C outputs this output voltage to the secondary battery in the assembled battery B1. The cell strings A1 to An are matched to a voltage suitable for charging and are charged via the resistors R1 to Rn. As a result,
Eventually, the assembled battery B1 will be fully charged (the assembled battery B1 will be in a fully charged state).
【００２０】この満充電状態において、組電池Ｂ１内の
任意の１つの２次電池セル列、たとえば２次電池セル列
Ａ１について放電容量試験を行う。つまり、スイッチＳ
１のみを、充電回路Ｃ側から放電容量測定回路Ｊ側に切
り換える。これによって、２次電池セル列Ａ１の充電電
流が放電容量測定回路Ｊに流れ、放電容量測定回路Ｊに
よって、２次電池セル列Ａ１の保有電力量が計測され
る。In this fully charged state, a discharge capacity test is performed on any one secondary battery cell array in the assembled battery B1, for example, the secondary battery cell array A1. That is, the switch S
Only 1 is switched from the charging circuit C side to the discharge capacity measuring circuit J side. As a result, the charging current of the secondary battery cell array A1 flows into the discharge capacity measuring circuit J, and the discharge capacity measuring circuit J measures the amount of power held in the secondary battery cell array A1.
【００２１】そして、２次電池セル列Ａ１の放電試験が
終了した後に、スイッチＳ１を受電回路Ｃ側に切り換
え、抵抗Ｒ１を介して充電回路Ｃから２次電池セル列Ａ
１に再び充電を行う。この２次電池セル列Ａ１への充電
が完了した後に、別の２次電池セル列、たとえば２次電
池セル列Ａ２について、スイッチＳ２を放電容量測定回
路Ｊ側に切り換えることによって、上記と同様の放電、
放電容量測定、再充電を行い、他の２次電池セル列につ
いても対応するスイッチを切り換えることによって、上
記と同様の放電、放電容量測定、再充電を行う。このよ
うにして、最終的に組電池Ｂ１内の全ての２次電池セル
列Ａ１〜Ａｎの各電力容量を計測し、２次電池セル列Ａ
１〜Ａｎの電力容量の総和を求めることによって、組電
池Ｂ１全体の電力容量を計測することができる。After the discharge test of the secondary battery cell array A1 is completed, the switch S1 is switched to the power receiving circuit C side and the charging circuit C is switched from the charging circuit C to the secondary battery cell array A via the resistor R1.
Recharge to 1. After the charging of the secondary battery cell array A1 is completed, for another secondary battery cell array, for example, the secondary battery cell array A2, by switching the switch S2 to the discharge capacity measuring circuit J side, the same as above. Discharge,
By performing discharge capacity measurement and recharge, and switching corresponding switches for other secondary battery cell rows, discharge, discharge capacity measurement and recharge similar to the above are performed. In this way, finally, the power capacities of all the secondary battery cell arrays A1 to An in the assembled battery B1 are measured, and the secondary battery cell array A is measured.
The total power capacity of 1 to An can be obtained to measure the power capacity of the entire assembled battery B1.
【００２２】このようにすることによって、組電池Ｂ１
内の全ての２次電池セル列について放電容量測定を確実
に行うことができ、放電容量測定を行う２次電池セル列
が冗長構成分であるので、放電容量試験中またはその直
後であって再充電が未了状態のときに入力電源Ｅが停止
したとしても、必要期間の間はバックアップ機能を保証
でき、しかも予備の組電池分ほどのコストの上昇がな
く、設置スペースの増大が少ない。By doing so, the assembled battery B1
Since the discharge capacity measurement can be performed reliably for all the secondary battery cell rows in the above, and the secondary battery cell row for which the discharge capacity measurement is performed has a redundant configuration, the discharge capacity test is performed again immediately after or during the discharge capacity test. Even if the input power supply E is stopped when the charging is not completed, the backup function can be guaranteed for the required period, the cost does not increase as much as the spare battery pack, and the installation space does not increase much.
【００２３】上記実施例においては、組電池Ｂ１が満充
電となったときに、組電池Ｂ１内の１つの２次電池セル
列についてのみ放電容量試験を行っているが、組電池Ｂ
１が満充電となったときに、２つ以上の２次電池セル列
について同時に放電容量試験を行うようにしてもよい。
ただし、同時に放電容量試験を行う２次電池セル列の数
は、２次電池セル列の冗長な数以下である必要がある。In the above-mentioned embodiment, when the assembled battery B1 is fully charged, the discharge capacity test is conducted only for one secondary battery cell row in the assembled battery B1.
When 1 is fully charged, the discharge capacity test may be simultaneously performed on two or more secondary battery cell rows.
However, the number of secondary battery cell rows that are simultaneously subjected to the discharge capacity test needs to be equal to or less than the redundant number of secondary battery cell rows.
【００２４】上記実施例において、複数の２次電池セル
によって２次電池セル列を構成しているが、１つの２次
電池セルによって２次電池セル列を構成するようにして
もよい。また、上記実施例では、２次電池セル列Ａ１〜
Ａｎまでｎ個設けられ、２次電池セル列の冗長な数が１
であるとしているが、このｎは任意の数であり、２次電
池セル列を２つ設けてもよく、３つ設けるようにしても
よく、２次電池セル列の冗長な数を２以上としてもよ
い。In the above embodiment, a plurality of secondary battery cells form a secondary battery cell row, but one secondary battery cell may also form a secondary battery cell row. Further, in the above embodiment, the secondary battery cell rows A1 to
N up to An is provided, and the redundant number of secondary battery cell rows is 1
However, this n is an arbitrary number, and two or three secondary battery cell rows may be provided, and the redundant number of secondary battery cell rows is set to 2 or more. Good.
【００２５】さらに、上記実施例においては、スイッチ
Ｓ１〜Ｓｎは機械的なスイッチであるとして表示してあ
るが、これらのスイッチＳ１〜Ｓｎをトランジスタ等で
構成した電子的なスイッチとし、マイクロコンピュータ
等の指令によって切り換え制御されるものであるとして
もよい。Further, in the above embodiment, the switches S1 to Sn are shown as mechanical switches, but these switches S1 to Sn are electronic switches composed of transistors or the like, and a microcomputer or the like is used. The switching control may be performed by the command.
【００２６】図２は、本発明の他の実施例を示す回路図
である。FIG. 2 is a circuit diagram showing another embodiment of the present invention.
【００２７】図２に示す実施例は、図１に示す実施例と
基本的には同じであるが、図１におけるスイッチＳ２〜
Ｓｎが削除され、２次電池セル列Ａ２〜Ａｎは、それぞ
れ、抵抗Ｒ２〜Ｒｎのうちで対応する抵抗と接続され、
またダイオードＤ１〜Ｄｎのうちで対応するダイオード
のアノード端子と接続され、放電容量測定回路Ｊは、ス
イッチＳ１を介して２次電池セル列Ａ１にのみ接続され
ている点が異なる。The embodiment shown in FIG. 2 is basically the same as the embodiment shown in FIG.
Sn is deleted, and the secondary battery cell rows A2 to An are connected to the corresponding resistors of the resistors R2 to Rn, respectively.
It is also different in that it is connected to the anode terminal of the corresponding diode among the diodes D1 to Dn, and the discharge capacity measuring circuit J is connected only to the secondary battery cell array A1 via the switch S1.
【００２８】図２に示す実施例においては、まず、スイ
ッチＳ１を充電回路Ｃ側に切り換えておき、入力電源Ｅ
の出力電圧が正常であれば、この出力電圧が充電回路Ｃ
によって適当な電圧に変圧され、抵抗Ｒ１〜Ｒｎを介し
て２次電池セル列Ａ１〜Ａｎを充電し、組電池Ｂ１が満
充電になる。この満充電状態において、２次電池セル列
Ａ１について放電容量試験を行うために、スイッチＳ１
を、充電回路Ｃ側から放電容量測定回路Ｊ側に切り換え
る。これによって、２次電池セル列Ａ１の充電電流が放
電容量測定回路Ｊに流れ、放電容量測定回路Ｊによっ
て、２次電池セル列Ａ１の保有電力量が計測される。In the embodiment shown in FIG. 2, first, the switch S1 is switched to the charging circuit C side, and the input power source E
If the output voltage of is normal, this output voltage
Is transformed into an appropriate voltage by the secondary battery cell array A1 to An through the resistors R1 to Rn, and the assembled battery B1 is fully charged. In this fully charged state, the switch S1 is used to perform the discharge capacity test on the secondary battery cell array A1.
Is switched from the charging circuit C side to the discharge capacity measuring circuit J side. As a result, the charging current of the secondary battery cell array A1 flows into the discharge capacity measuring circuit J, and the discharge capacity measuring circuit J measures the amount of power held in the secondary battery cell array A1.
【００２９】この場合、組電池Ｂ１を構成する２次電池
セル列Ａ１〜Ａｎを同時期に設置すれば、２次電池セル
列Ａ１〜Ａｎのそれぞれの放電容量は互いにほぼ同じで
あることが多いことから、１つの２次電池セル列Ａ１の
みを放電させ、その放電量を測定し、他の２次電池セル
列の放電量もそれと同じであると考えれば、放電容量の
測定操作が容易である。しかも、組電池Ｂ１内の２次電
池セル列Ａ１は冗長構成分であるから、放電容量試験
中、またはその直後であって再充電が未了状態のときに
入力電源Ｅが停止したとしても、必要期間の間はバック
アップ機能を保証できる。In this case, if the secondary battery cell arrays A1 to An forming the assembled battery B1 are installed at the same time, the discharge capacities of the secondary battery cell arrays A1 to An are often substantially the same. Therefore, if only one secondary battery cell array A1 is discharged, the discharge amount is measured, and the discharge amounts of the other secondary battery cell arrays are also the same, it is easy to measure the discharge capacity. is there. Moreover, since the secondary battery cell array A1 in the assembled battery B1 has a redundant configuration, even if the input power source E is stopped during the discharge capacity test or immediately after that, and when recharging is not completed, The backup function can be guaranteed for the required period.
【００３０】[0030]
【発明の効果】請求項１に記載の発明によれば、予備の
組電池を設けなくても、組電池のバックアップ機能を確
保することができ、しかも、１つの２次電池セル列のみ
を放電させたときの放電量を測定し、他の２次電池セル
列の放電量もそれと同じであると推測すれば、放電容量
の測定操作が容易であるという効果を奏する。According to the invention described in claim 1, the backup function of the assembled battery can be ensured without providing a spare assembled battery, and only one secondary battery cell row is discharged. If the amount of discharge at that time is measured and it is estimated that the amounts of discharge of the other secondary battery cell rows are also the same, it is possible to easily measure the discharge capacity.
【００３１】請求項２に記載の発明によれば、予備の組
電池を設けなくても、組電池のバックアップ機能を確保
することができ、しかも、より確実な放電容量測定デー
タを得ることができるという効果を奏する。According to the second aspect of the invention, the backup function of the assembled battery can be ensured without providing a spare assembled battery, and more reliable discharge capacity measurement data can be obtained. Has the effect.
【図１】本発明の一実施例を示す回路図である。FIG. 1 is a circuit diagram showing an embodiment of the present invention.
【図２】本発明の他の実施例を示す回路図である。FIG. 2 is a circuit diagram showing another embodiment of the present invention.
【図３】従来の停電バックアップ電源の一例を示す回路
図である。FIG. 3 is a circuit diagram showing an example of a conventional power failure backup power supply.
Ｅ…入力電源、 Ｃ…充電回路、 Ｓ…出力電圧安定化回路、 Ｌ…負荷、 Ｂ１…組電池、 Ｊ…放電容量測定回路、 Ｒ１〜Ｒｎ…電流制限抵抗、 Ｄ１〜Ｄｎ…逆電流防止用ダイオード、 Ｓ１〜Ｓｎ…スイッチ、 Ａ１〜Ａｎ…組電池Ｂ１を構成する２次電池セル列。 E ... Input power supply, C ... Charging circuit, S ... Output voltage stabilizing circuit, L ... Load, B1 ... Battery pack, J ... Discharge capacity measuring circuit, R1-Rn ... Current limiting resistance, D1-Dn ... Reverse current prevention Diodes, S1 to Sn ... Switches, A1 to An ... Secondary battery cell rows constituting the assembled battery B1.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山下 隆司 東京都千代田区内幸町１丁目１番６号 日 本電信電話株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Yamashita 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5205643AJP2967850B2 (en) | 1993-07-28 | 1993-07-28 | Test method for battery discharge capacity |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5205643AJP2967850B2 (en) | 1993-07-28 | 1993-07-28 | Test method for battery discharge capacity |
| Publication Number | Publication Date |
|---|---|
| JPH0743438Atrue JPH0743438A (en) | 1995-02-14 |
| JP2967850B2 JP2967850B2 (en) | 1999-10-25 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5205643AExpired - LifetimeJP2967850B2 (en) | 1993-07-28 | 1993-07-28 | Test method for battery discharge capacity |
| Country | Link |
|---|---|
| JP (1) | JP2967850B2 (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09172744A (en)* | 1995-12-15 | 1997-06-30 | Origin Electric Co Ltd | Battery capacity determination and charge management system |
| US6097176A (en)* | 1997-12-03 | 2000-08-01 | Matsushita Electric Industrial Co., Ltd. | Method for managing back-up power source |
| WO2012133274A1 (en)* | 2011-03-30 | 2012-10-04 | 三洋電機株式会社 | Electrical storage system and mobile body |
| WO2021084901A1 (en)* | 2019-10-29 | 2021-05-06 | 京セラ株式会社 | Electric storage system and management method |
| CN114578239A (en)* | 2020-12-02 | 2022-06-03 | 周雅娟 | Method and device for testing battery capacity of uninterruptible power supply |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09172744A (en)* | 1995-12-15 | 1997-06-30 | Origin Electric Co Ltd | Battery capacity determination and charge management system |
| US6097176A (en)* | 1997-12-03 | 2000-08-01 | Matsushita Electric Industrial Co., Ltd. | Method for managing back-up power source |
| WO2012133274A1 (en)* | 2011-03-30 | 2012-10-04 | 三洋電機株式会社 | Electrical storage system and mobile body |
| WO2021084901A1 (en)* | 2019-10-29 | 2021-05-06 | 京セラ株式会社 | Electric storage system and management method |
| JPWO2021084901A1 (en)* | 2019-10-29 | 2021-11-25 | 京セラ株式会社 | Power storage system and management method |
| CN114578239A (en)* | 2020-12-02 | 2022-06-03 | 周雅娟 | Method and device for testing battery capacity of uninterruptible power supply |
| Publication number | Publication date |
|---|---|
| JP2967850B2 (en) | 1999-10-25 |
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