JP3317184B2 - Power supply device and method for detecting deterioration of power supply device - Google Patents
Power supply device and method for detecting deterioration of power supply deviceInfo
- Publication number
- JP3317184B2 JP3317184B2 JP09989997A JP9989997A JP3317184B2 JP 3317184 B2 JP3317184 B2 JP 3317184B2 JP 09989997 A JP09989997 A JP 09989997A JP 9989997 A JP9989997 A JP 9989997A JP 3317184 B2 JP3317184 B2 JP 3317184B2
- Authority
- JP
- Japan
- Prior art keywords
- storage battery
- charging
- power supply
- current
- charging current
- 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.)
- Expired - Fee Related
Links
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Tests Of Electric Status Of Batteries (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電源装置に関する
ものであり、詳しくは電源装置内に備えた蓄電池の劣化
を検出する蓄電池劣化検出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 a power supply, and more particularly to a storage battery deterioration detection circuit for detecting deterioration of a storage battery provided in a power supply.
【０００２】[0002]
【従来の技術】図５は従来の電源装置の構造図である。
１は商用電源を入力とする充電手段、２は蓄電池で充電
手段１に接続され、充電手段１により充電される。８は
センサーで放電電流、蓄電池電圧、蓄電池近傍の温度等
を検出する。９は演算処理部でセンサー８で検出した放
電電流、蓄電池電圧、蓄電池近傍の温度および時間によ
り蓄電池の劣化状態を演算する。５は警報手段で演算処
理部からの信号により警報する。６はインバータで蓄電
池２からセンサー８を介して直流電圧を入力とし交流電
圧を出力する。７は切替スイッチで商用電源とインバー
タ６とを入力とし、いずれかを電源として負荷に出力す
る。2. Description of the Related Art FIG. 5 is a structural view of a conventional power supply device.
Reference numeral 1 denotes a charging unit that receives a commercial power supply, and 2 denotes a storage battery that is connected to the charging unit 1 and is charged by the charging unit 1. A sensor 8 detects a discharge current, a storage battery voltage, a temperature near the storage battery, and the like. Reference numeral 9 denotes an arithmetic processing unit which calculates the deterioration state of the storage battery based on the discharge current detected by the sensor 8, the storage battery voltage, and the temperature and time near the storage battery. Reference numeral 5 denotes an alarm unit that issues an alarm by a signal from the arithmetic processing unit. Reference numeral 6 denotes an inverter which receives a DC voltage from the storage battery 2 via a sensor 8 and outputs an AC voltage. A changeover switch 7 receives a commercial power supply and the inverter 6 as inputs, and outputs one of them as a power supply to a load.
【０００３】次にこの電源装置についてその動作を説明
する。定常時は充電手段１は商用電源を入力とし、蓄電
池２を充電する。また切替スイッチ７は商用電源側に切
り替えられており、商用電源を負荷に供給する。この定
常時の蓄電池劣化検出動作時について説明する。蓄電池
の劣化検出の際は、充電手段１を停止し、インバータ６
を動作させ、切替スイッチ７をインバータ６側に切り替
え、蓄電池２からセンサー８、インバータ６、切替スイ
ッチ７を介して負荷に交流電圧を供給する。この時の蓄
電池２からの放電電流、温度をセンサー８により測定す
る。その時測定された放電電流と温度に応じた放電停止
電圧を演算処理部９で演算し、放電停止電圧に達するま
での時間を演算処理部９で計測する。この時放電開始か
ら蓄電池２が放電停止電圧に達するまでの値があらかじ
め定めた規定時間以下である場合に蓄電池２が劣化して
いると演算処理部９が判断して警報手段５に信号を出力
し、警報手段５により蓄電池２の劣化を使用者にブザー
やＬＥＤ照射等により警報する。Next, the operation of this power supply device will be described. Under normal conditions, the charging means 1 inputs a commercial power supply and charges the storage battery 2. The changeover switch 7 is switched to the commercial power supply, and supplies the commercial power to the load. A description will be given of the storage battery deterioration detection operation in the steady state. When the deterioration of the storage battery is detected, the charging means 1 is stopped and the inverter 6 is turned off.
Is operated, the changeover switch 7 is switched to the inverter 6 side, and an AC voltage is supplied from the storage battery 2 to the load via the sensor 8, the inverter 6, and the changeover switch 7. At this time, the discharge current and temperature from the storage battery 2 are measured by the sensor 8. The arithmetic processing unit 9 calculates a discharge stop voltage according to the measured discharge current and temperature, and the arithmetic processing unit 9 measures a time until the discharge stop voltage is reached. At this time, when the value from the start of discharging to the time when the storage battery 2 reaches the discharge stop voltage is equal to or less than a predetermined time, the arithmetic processing unit 9 determines that the storage battery 2 is deteriorated and outputs a signal to the alarm means 5. Then, the alarm means 5 warns the user of the deterioration of the storage battery 2 by means of a buzzer, LED irradiation or the like.
【０００４】図６は放電電流と温度が一定で正常な蓄電
池と劣化した蓄電池を放電した時のグラフであり、正常
な蓄電池の場合には放電停止電圧に達するまでの時間が
規定時間以上で、劣化した蓄電池の場合には放電停止電
圧に達するまでの時間が規定時間以下となることを示し
ている。FIG. 6 is a graph when a normal storage battery and a deteriorated storage battery having a constant discharge current and temperature are discharged. In the case of a normal storage battery, the time required to reach the discharge stop voltage is a specified time or more. In the case of a deteriorated storage battery, the time required to reach the discharge stop voltage is shorter than the specified time.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、従来例
の電源装置では、一度蓄電池を放電しなければ電池の状
態を検出することができない構成となっており、通常時
は蓄電池からの放電がなされない無停電電源装置等にお
いては蓄電池が劣化していても正確に検出されない恐れ
があった。However, in the conventional power supply device, the state of the battery cannot be detected unless the storage battery is discharged once, and the storage battery is not normally discharged. In an uninterruptible power supply or the like, even if the storage battery has deteriorated, it may not be accurately detected.
【０００６】また蓄電池の放電電流、蓄電池の電圧降下
および温度と電池の劣化との関係を測定し、詳細なデー
タとして演算処理部に記憶させなければならず、多大な
データの取得が必要であり、また高価なマイコンやメモ
リーを使用しなければならないためコストが高くなると
いう課題もあった。Further, the relationship between the discharge current of the storage battery, the voltage drop and the temperature of the storage battery, and the deterioration of the battery must be measured and stored as detailed data in an arithmetic processing unit, and a great amount of data must be obtained. In addition, there is also a problem that the cost is increased because expensive microcomputers and memories must be used.
【０００７】本発明は、前記従来の課題を解決するため
に、負荷により蓄電池を放電することなく蓄電池の劣化
を検出し、必要データ量を減じることで安価に製造でき
る電源装置を提供することを目的とする。In order to solve the above-mentioned conventional problems, the present invention provides a power supply device which can detect the deterioration of a storage battery without discharging the storage battery by a load and reduce the required data amount to be manufactured at low cost. Aim.
【０００８】[0008]
【課題を解決するための手段】前記目的を達成するため
に本発明は、蓄電池と、前記蓄電池を充電するための充
電手段と、前記充電手段の出力を受け充電電流を検出す
る充電電流検出手段と、タイマーを内蔵し前記充電電流
検出手段からの出力を受ける劣化検出手段と、前記劣化
検出手段からの出力を受ける警報手段とを備え、前記充
電電流検出手段により検出された充電電流の電流値が、
しきい値以上でタイマーをカウントし、規定時間経過後
においてもしきい値以上であった際に前記警報手段によ
り警報が発せられる電源装置の劣化検出方法及びそれを
用いた電源装置であり、これにより簡単な構成で蓄電池
の充電時に劣化の検出を行うと共に定常的に劣化を監視
するので、正確に劣化を検出し、安価な電源装置を提供
できる。In order to achieve the above object, the present invention provides a storage battery, charging means for charging the storage battery, and charging current detecting means for receiving an output of the charging means and detecting a charging current. A deterioration detecting means having a built-in timer for receiving an output from the charging current detecting means; and an alarming means for receiving an output from the deterioration detecting means, wherein a current value of the charging current detected by the charging current detecting means is provided. But,
Counts the timer above the threshold and after the specified time
And a method for detecting deterioration of the power supply device in which an alarm is issued by the alarm means when the value is equal to or higher than the threshold value, and a power supply device using the method, thereby detecting deterioration when charging the storage battery with a simple configuration. In addition, since the deterioration is constantly monitored, the deterioration can be accurately detected and an inexpensive power supply device can be provided.
【０００９】[0009]
【発明の実施の形態】以下、本発明の好ましい実施の形
態について図面を参照しながら詳細に説明する。なお、
本実施の形態において、従来例と略同一の機能を有する
ものについては同一の番号を付す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings. In addition,
In the present embodiment, components having substantially the same functions as those of the conventional example are denoted by the same reference numerals.
【００１０】図１は本発明の電源装置の一実施の形態を
示す構成図である。１は充電手段で商用電源を入力とす
る。２は蓄電池で充電手段１により充電される。３は充
電電流検出手段で充電手段１および蓄電池２と直列に接
続され、充電電流があらかじめ定めたしきい値以下か以
上かを検出する。４は劣化検出手段として用いたマイコ
ンでタイマーを内蔵し、充電電流検出手段３からの信号
を入力とする。５はブザー、ＬＥＤ等の警報手段でマイ
コン４からの信号により使用者に警報を発する。６はイ
ンバータで蓄電池２の直流電圧を入力とし交流電圧を出
力する。７は切替スイッチで商用電源とインバータ６と
を入力とし、いずれかを電源として負荷に出力する。FIG. 1 is a configuration diagram showing an embodiment of the power supply device of the present invention. Reference numeral 1 designates a charging means for inputting a commercial power supply. A storage battery 2 is charged by the charging means 1. Reference numeral 3 denotes a charging current detecting means, which is connected in series with the charging means 1 and the storage battery 2, and detects whether the charging current is equal to or less than a predetermined threshold value. Reference numeral 4 denotes a microcomputer used as deterioration detecting means, which has a built-in timer and receives a signal from the charging current detecting means 3 as an input. Reference numeral 5 denotes an alarm means such as a buzzer or an LED, which issues an alarm to the user by a signal from the microcomputer 4. Reference numeral 6 denotes an inverter which receives the DC voltage of the storage battery 2 and outputs an AC voltage. A changeover switch 7 receives a commercial power supply and the inverter 6 as inputs, and outputs one of them as a power supply to a load.
【００１１】次にこの電源装置の劣化検出方法につい
て、その動作を詳細に説明する。まず寿命になる前の蓄
電池２が、負荷に放電した後の充電時について説明す
る。商用電源が充電手段１に入力されると、充電手段１
の出力から流れる充電電流によって蓄電池２が充電され
る。この時の充電電流は充電電流検出手段３により検出
され、充電電流検出手段３からマイコン４への出力は、
充電電流があらかじめ定められたしきい値よりも大きい
か小さいかを出力する。Next, the operation of the method for detecting deterioration of the power supply device will be described in detail. First, a case where the storage battery 2 before the end of its life is charged after being discharged to a load will be described. When commercial power is input to the charging means 1, the charging means 1
The storage battery 2 is charged by the charging current flowing from the output of. The charging current at this time is detected by the charging current detecting means 3, and the output from the charging current detecting means 3 to the microcomputer 4 is:
It outputs whether the charging current is larger or smaller than a predetermined threshold value.
【００１２】このしきい値は次に示す理由により以下に
示すように設定する。本実施の形態の充電手段の充電方
法は定電圧定電流充電で、放電された蓄電池２を充電す
る場合、充電初期には大きな電流を流し、蓄電池電圧が
ある一定の電圧に達すると充電電流を垂下させる充電方
法である。定電圧定電流充電の場合、充電末期の充電電
流は充電初期の充電電流よりも非常に小さくなる。しか
しながらこの充電末期の充電電流は、蓄電池２の劣化と
共に大きくなるという特性を有している。また蓄電池２
が複数セルで構成されている場合には、蓄電池２が劣化
し、あるセルの内部インピーダンスが小さくなったりシ
ョートしたりすると、その他のセルに印加される電圧が
大きくなり、充電末期の充電電流が大きくなる。従って
蓄電池２が寿命になる前の充電末期の充電電流値と蓄電
池が寿命になった後の充電末期の充電電流値との間の電
流値をあらかじめしきい値としている。具体的に説明す
ると、蓄電池２に流れる充電電流をＩＣとし、寿命にな
る前の蓄電池２を充電した場合の充電末期に蓄電池２に
流れる電流をＩＣＥ１、寿命になった後の蓄電池２を充
電した場合に蓄電池２に流れる電流をＩＣＥ２とし、充
電電流検出手段３におけるしきい値電流をＩＣＤとした
時、これらの電流値の関係が以下のようになるように設
定する。This threshold value is set as follows for the following reason. The charging method of the charging means of the present embodiment is constant voltage / constant current charging. When charging the discharged storage battery 2, a large current flows at the beginning of charging, and when the storage battery voltage reaches a certain voltage, the charging current is reduced. It is a charging method that causes the battery to hang down. In the case of constant voltage constant current charging, the charging current at the end of charging is much smaller than the charging current at the beginning of charging. However, the charging current at the end of charging has a characteristic that it increases with the deterioration of the storage battery 2. Storage battery 2
Is composed of a plurality of cells, when the storage battery 2 deteriorates and the internal impedance of a certain cell decreases or short-circuits, the voltage applied to other cells increases, and the charging current at the end of charging decreases. growing. Therefore, a current value between the charge current value at the end of charging before the storage battery 2 reaches the end of its life and the charge current value at the end of charge after the end of the life of the storage battery 2 is set as the threshold value in advance. More specifically, the charging current flowing through the storage battery 2 was defined as an IC, the current flowing through the storage battery 2 at the end of charging when the storage battery 2 was charged before the end of life was charged, and the storage battery 2 after the end of the life was charged. In this case, when the current flowing through the storage battery 2 is ICE2 and the threshold current in the charging current detecting means 3 is ICD, the relationship between these current values is set as follows.
【００１３】ＩＣＥ１ ＜ ＩＣＤ ＜ ＩＣＥ２ そしてマイコン４では充電電流ＩＣ＞ＩＣＤである場合
に、内蔵のタイマーをスタートする。図２に示すように
充電初期の充電電流ＩＣはＩＣＤ以上であるため、蓄電
池２が充電される場合には、マイコン４に内蔵されたタ
イマーはスタートする。充電が継続され、蓄電池２の電
圧ＶＢが充電手段１の定電圧値ＶＢ１に達すると、充電
手段１は蓄電池２の電圧をほぼ一定に保ったまま充電電
流ＩＣを垂下させる。この後充電電流ＩＣはある時点で
ＩＣ＜ＩＣＤとなり、最終的には充電末期の電流値ＩＣ
Ｅ１に達する。タイマーはＩＣ＜ＩＣＤになった時点で
停止する設定とし、タイマースタートから停止までの時
間をＴ１とする。また、このタイマーはＩＣ＞ＩＣＤの
状態が続いた場合、ある規定時間Ｔ０までは計測する設
定とする。ここでＴ０とＴ１の関係はＴ１＜Ｔ０となる
ように設定する。ICE1 <ICD <ICE2 The microcomputer 4 starts a built-in timer when the charging current IC> ICD. As shown in FIG. 2, the charging current IC at the initial stage of charging is equal to or larger than the ICD. Therefore, when the storage battery 2 is charged, the timer built in the microcomputer 4 starts. When the charging is continued and the voltage VB of the storage battery 2 reaches the constant voltage value VB1 of the charging means 1, the charging means 1 drops the charging current IC while keeping the voltage of the storage battery 2 substantially constant. After this, the charging current IC becomes IC <ICD at some point, and finally, the current value IC at the end of charging IC
E1 is reached. The timer is set to stop when IC <ICD, and the time from timer start to stop is T1. In addition, this timer is set to measure until a predetermined time T0 when the state of IC> ICD continues. Here, the relationship between T0 and T1 is set so that T1 <T0.
【００１４】このように充電を開始してから充電電流が
ＩＣＥ１に達するまでの蓄電池２の電圧と充電手段１の
充電電流ＩＣの時間による変化を図２に示しており、こ
こでは充電手段１の充電初期から垂下する直前までの充
電電流がほぼ一定の場合を示している。同図に示すよう
に一定時間Ｔ１内にＩＣがＩＣＤとなった際には、蓄電
池２は正常であるとみなされ、マイコン４は警報手段５
に正常であるという信号を送る。FIG. 2 shows the change of the voltage of the storage battery 2 and the charging current IC of the charging means 1 with time from the start of charging until the charging current reaches ICE1. This shows a case where the charging current from the initial stage of charging to immediately before dripping is substantially constant. As shown in the figure, when the IC becomes ICD within a certain time T1, the storage battery 2 is regarded as normal, and the microcomputer 4 sets the alarm means 5
A signal indicating that it is normal.
【００１５】なお、定常時には切替スイッチ７は商用電
源側に切り替えられており、商用電源を負荷に供給す
る。また停電時には充電手段１は停止し、インバータ６
を動作させ、切替スイッチ７をインバータ６側に切り替
え、蓄電池２からインバータ６、切替スイッチ７を介し
て負荷に交流電圧を供給する。In a steady state, the changeover switch 7 is switched to the commercial power supply, and supplies the commercial power to the load. In the event of a power failure, the charging means 1 stops and the inverter 6
Is operated, the changeover switch 7 is switched to the inverter 6 side, and an AC voltage is supplied from the storage battery 2 to the load via the inverter 6 and the changeover switch 7.
【００１６】次に図３を用いて寿命となった後の蓄電池
２が放電された後に充電される場合について説明する。
充電初期の充電電流ＩＣ＞ＩＣＤであるため、蓄電池２
が充電される場合には、マイコン４に内蔵されたタイマ
ーはスタートする。充電が継続され、蓄電池２の電圧Ｖ
Ｂが充電手段１の定電圧値ＶＢ１に達すると、充電手段
１は蓄電池２の電圧をほぼ一定に保ったまま充電電流Ｉ
Ｃを垂下させる。しかしながら、寿命になった後の蓄電
池の充電末期電流ＩＣＥ２はＩＣＤより大きいままであ
り、マイコン４内部のタイマーは規定時間Ｔ０まで計測
を持続した後、マイコン４は蓄電池２が劣化していると
判断し、警報手段５に使用者に警報するよう出力する。Next, a case where the storage battery 2 after the end of its life is discharged and then charged will be described with reference to FIG.
Since the charging current IC> ICD at the beginning of charging, the storage battery 2
When is charged, the timer built in the microcomputer 4 starts. The charging is continued, and the voltage V of the storage battery 2 is
When B reaches the constant voltage value VB1 of the charging means 1, the charging means 1 charges the charging current I while keeping the voltage of the storage battery 2 substantially constant.
Drop C. However, the end-of-charge current ICE2 of the storage battery after the end of its life remains larger than the ICD, and the microcomputer 4 determines that the storage battery 2 has deteriorated after the timer inside the microcomputer 4 has continued measurement until the specified time T0. Then, an alarm means 5 is output to warn the user.
【００１７】次に図４を用いて充電を継続したまま蓄電
池が劣化した場合について説明する。蓄電池２が劣化す
る前は充電末期電流はＩＣＤ以下で保たれている。しか
し蓄電池２が劣化してくると、充電末期電流がＩＣＤを
越えることによりマイコン４に内蔵されたタイマーはス
タートする。このままＩＣ＞ＩＣＤの状態を持続したま
まＴ０を経過した場合にもマイコン４は蓄電池２が劣化
していると判断し、警報手段５に使用者へ警報するよう
出力する。この警報手段５からの警報により、本発明の
電源装置は使用者に蓄電池の劣化を知らせることが可能
となる。Next, a case where the storage battery deteriorates while charging is continued will be described with reference to FIG. Before the storage battery 2 deteriorates, the end-of-charge current is maintained at ICD or less. However, when the storage battery 2 deteriorates, the timer built in the microcomputer 4 starts when the terminal current of the charge exceeds the ICD. The microcomputer 4 also when this state IC> has elapsed T0 while sustained state of ICD determines that the storage battery 2 has deteriorated, and outputs to the alarm to the user to the alarm means 5. By the warning from the warning means 5, the power supply device of the present invention can notify the user of the deterioration of the storage battery.
【００１８】なお本実施の形態では充電電流検出手段３
がしきい値電流ＩＣＤ以上か以下かを検出する場合につ
いて述べたが、規定時間Ｔ０の測定開始時と測定終了時
に充電電流検出手段３により検出された充電電流の電流
値の差もしくは変化率が、あらかじめ定めた規定値以下
であった際に蓄電池２が劣化していると判断して警報手
段５により使用者に警報しても良い。また充電電流検出
手段３においては充電電流を電圧や周波数に変換し、こ
れをマイコン４で検出し、充電電流がＩＣＤ以上か以下
かをマイコン４にて判定し、ＩＣがＩＣＤ以上になって
からＴ０経過しても充電末期電流がＩＣＤ以下にならな
いければマイコン４は蓄電池２が劣化していると判断
し、警報手段５に警報するよう出力するようにしても良
い。なお、本実施の形態においては、劣化検出手段とし
てタイマーを内蔵したマイコンを用いたが、タイマーと
コンパレータ等の組み合わせによっても略同等の効果が
得られる回路を構成することができる。In this embodiment, the charging current detecting means 3
Is described as being equal to or greater than the threshold current ICD, but the difference or the change rate of the current value of the charging current detected by the charging current detecting means 3 at the start and end of the measurement of the specified time T0 is Alternatively, it may be determined that the storage battery 2 is deteriorated when the value is equal to or less than a predetermined value, and the user may be warned by the warning means 5. In the charging current detecting means 3, the charging current is converted into a voltage or a frequency, which is detected by the microcomputer 4, and the microcomputer 4 determines whether the charging current is equal to or larger than the ICD. If the end-of-charge current does not become equal to or less than the ICD even after the lapse of T0, the microcomputer 4 may determine that the storage battery 2 has deteriorated and output an alarm to the alarm means 5. In the present embodiment, a microcomputer having a built-in timer is used as the deterioration detecting means. However, a circuit that can obtain substantially the same effect can be configured by a combination of a timer and a comparator.
【００１９】本発明は特に、無停電電源装置等のバック
アップ電源に用いるとその効果は顕著であることはいう
までもない。It goes without saying that the effect of the present invention is particularly remarkable when it is used for a backup power supply such as an uninterruptible power supply.
【００２０】[0020]
【発明の効果】上記実施の形態から明らかなように、本
発明は充電電流の検出と充電時間を計測するだけの簡単
な回路で蓄電池の劣化を検出することができる。このた
め既にマイコンを使用している機器では、充電電流検出
手段のみを追加し、マイコンで時間を計測するだけで蓄
電池の劣化を検出することが可能となり、負荷により蓄
電池を放電することなく蓄電池の劣化を検出し、必要デ
ータ量を減じることで安価に製造できるという効果を有
する電源装置を供給できる。As is clear from the above embodiment, the present invention can detect the deterioration of the storage battery with a simple circuit that only detects the charging current and measures the charging time. Therefore, in devices that already use a microcomputer, it is possible to detect the deterioration of the storage battery only by adding the charging current detection means and measuring the time with the microcomputer, and to detect the deterioration of the storage battery without discharging the storage battery by the load. It is possible to supply a power supply device having an effect of being able to manufacture at low cost by detecting deterioration and reducing the required data amount.
【図１】本発明の一実施の形態における蓄電池劣化検出
回路の構成図FIG. 1 is a configuration diagram of a storage battery deterioration detection circuit according to an embodiment of the present invention.
【図２】本発明の一実施の形態における寿命前蓄電池充
電時の電流電圧相関図FIG. 2 is a current-voltage correlation diagram when a pre-life storage battery is charged according to an embodiment of the present invention.
【図３】本発明の一実施の形態における劣化後蓄電池充
電時の電流電圧相関図FIG. 3 is a current-voltage correlation diagram when the storage battery after deterioration is charged in one embodiment of the present invention.
【図４】本発明の一実施の形態における蓄電池が劣化し
た場合の電流電圧相関図FIG. 4 is a current-voltage correlation diagram when the storage battery in one embodiment of the present invention is deteriorated.
【図５】従来例における蓄電池劣化検出回路の構成図FIG. 5 is a configuration diagram of a storage battery deterioration detection circuit in a conventional example.
【図６】従来例における蓄電池を充電した場合の電流電
圧相関図FIG. 6 is a current-voltage correlation diagram when a storage battery is charged in a conventional example.
１ 充電手段 ２ 蓄電池 ３ 充電電流検出手段 ４ 劣化検出手段（マイコン） ５ 警報手段 DESCRIPTION OF SYMBOLS 1 Charging means 2 Storage battery 3 Charging current detecting means 4 Deterioration detecting means (microcomputer) 5 Alarm means
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H02J 7/00 - 9/08 G01R 31/36 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. 7 , DB name) H02J 7 /00-9/08 G01R 31/36
Claims (2)
充電手段と、前記充電手段の出力を受け充電電流を検出
する充電電流検出手段と、タイマーを内蔵し前記充電電
流検出手段からの出力を受ける劣化検出手段と、前記劣
化検出手段からの出力を受ける警報手段とを備え、 前記充電電流検出手段により検出された充電電流の電流
値が、しきい値以上でタイマーをカウントし、規定時間
経過後においてもしきい値以上であった際に前記警報手
段により警報が発せられることを特徴とする電源装置の
劣化検出方法 。1. A storage battery, charging means for charging the storage battery, charging current detection means for receiving the output of the charging means and detecting a charging current, and incorporating a timer for detecting an output from the charging current detection means And a warning means for receiving an output from the deterioration detecting means. The current of the charging current detected by the charging current detecting means is provided .
When the value is equal to or greater than the threshold, the timer is counted
Even after the lapse of time, the alarm
The power supply device characterized in that the step generates an alarm
Deterioration detection method .
とを特徴とする無停電電源装置。 2. The method according to claim 1, wherein the deterioration detection method comprises:
And an uninterruptible power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09989997A JP3317184B2 (en) | 1997-04-17 | 1997-04-17 | Power supply device and method for detecting deterioration of power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09989997A JP3317184B2 (en) | 1997-04-17 | 1997-04-17 | Power supply device and method for detecting deterioration of power supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10295046A JPH10295046A (en) | 1998-11-04 |
| JP3317184B2 true JP3317184B2 (en) | 2002-08-26 |
Family
ID=14259629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09989997A Expired - Fee Related JP3317184B2 (en) | 1997-04-17 | 1997-04-17 | Power supply device and method for detecting deterioration of power supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3317184B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018519531A (en) * | 2015-11-30 | 2018-07-19 | エルジー・ケム・リミテッド | Battery cell defect detection apparatus and method using unknown discharge current |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4846829B2 (en) | 2009-06-26 | 2011-12-28 | 株式会社東芝 | Information processing apparatus and battery deterioration detection method |
| CN110581552B (en) * | 2019-09-16 | 2022-04-22 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Charging regulation and control method, computer equipment and storage medium |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59114472A (en) * | 1982-12-21 | 1984-07-02 | Matsushita Electric Ind Co Ltd | Apparatus for judging life of hermetically closed lead battery |
| JPS63187581A (en) * | 1987-01-29 | 1988-08-03 | Shin Kobe Electric Mach Co Ltd | Tricle lifetime evaluation method for enclosed type lead storage cell |
| JPH0555452U (en) * | 1991-12-27 | 1993-07-23 | 日本電池株式会社 | Deterioration determination method for lead-acid batteries |
| JP3430600B2 (en) * | 1993-12-24 | 2003-07-28 | 新神戸電機株式会社 | Method and apparatus for estimating deterioration state of storage battery |
| JP3579098B2 (en) * | 1994-11-02 | 2004-10-20 | 東芝プラントシステム株式会社 | Battery monitoring device |
-
1997
- 1997-04-17 JP JP09989997A patent/JP3317184B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018519531A (en) * | 2015-11-30 | 2018-07-19 | エルジー・ケム・リミテッド | Battery cell defect detection apparatus and method using unknown discharge current |
| EP3293533A4 (en) * | 2015-11-30 | 2018-09-05 | LG Chem, Ltd. | Apparatus and method for detecting battery cell failure due to unknown discharge current |
| US10627448B2 (en) | 2015-11-30 | 2020-04-21 | Lg Chem, Ltd. | Apparatus and method for detecting battery cell failure due to unknown discharge current |
| US11280837B2 (en) | 2015-11-30 | 2022-03-22 | Lg Chem, Ltd. | Apparatus and method for detecting battery cell failure due to unknown discharge current |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10295046A (en) | 1998-11-04 |
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