JP2002125322A - Charging and discharging device - Google Patents
Charging and discharging deviceInfo
- Publication number
- JP2002125322A JP2002125322A JP2000313669A JP2000313669A JP2002125322A JP 2002125322 A JP2002125322 A JP 2002125322A JP 2000313669 A JP2000313669 A JP 2000313669A JP 2000313669 A JP2000313669 A JP 2000313669A JP 2002125322 A JP2002125322 A JP 2002125322A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- secondary battery
- charging
- unit
- discharging
- 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
- Tests Of Electric Status Of Batteries (AREA)
- 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、各種の二次電池に
対して、所定の電流による充電又は放電を行い、その二
次電池の電圧を測定して、二次電池の充放電特性や寿命
等を測定する為の充放電装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to charging and discharging various kinds of secondary batteries with a predetermined current, measuring the voltage of the secondary batteries, and measuring the charge / discharge characteristics and life of the secondary batteries. The present invention relates to a charging / discharging device for measuring the like.
【0002】[0002]
【従来の技術】図4は従来例の充放電装置の説明図であ
り、41は充放電装置、42は二次電池、43は充電・
放電部、44は電圧測定部、45は制御部を示す。充電
・放電部43に二次電池42を接続し、電圧測定部44
に二次電池42の端子電圧を測定する為の検出線を介し
て接続する。2. Description of the Related Art FIG. 4 is an explanatory view of a conventional charging / discharging device, wherein 41 is a charging / discharging device, 42 is a secondary battery, and 43 is a charging / discharging device.
A discharge unit, 44 is a voltage measurement unit, and 45 is a control unit. The secondary battery 42 is connected to the charge / discharge unit 43, and the voltage measurement unit 44
To a secondary battery 42 via a detection line for measuring the terminal voltage of the secondary battery 42.
【0003】制御部45は、二次電池42の試験項目等
に対応して設定された制御内容に従って充電・放電部4
3を制御して、二次電池42の充電又は放電を行うもの
である。又その時の二次電池42の端子電圧を電圧測定
部44により測定して制御部45に通知し、又充電・放
電部43に於ける電流を測定して制御部45に通知する
ことにより、所定の電圧範囲内で且つ所定の電流範囲内
で二次電池42の充放電を行うことができるように、制
御部45から充電・放電部43を制御する。その時の二
次電池42の電圧及び充放電電流を測定することによ
り、二次電池42の充放電特性を計測することができ
る。The control unit 45 controls the charge / discharge unit 4 in accordance with the control contents set corresponding to the test items of the secondary battery 42 and the like.
3 is controlled to charge or discharge the secondary battery 42. In addition, the terminal voltage of the secondary battery 42 at that time is measured by the voltage measuring unit 44 and notified to the control unit 45, and the current in the charging / discharging unit 43 is measured and notified to the control unit 45, whereby a predetermined The control unit 45 controls the charging / discharging unit 43 so that the secondary battery 42 can be charged and discharged within the voltage range described above and within a predetermined current range. By measuring the voltage and charge / discharge current of the secondary battery 42 at that time, the charge / discharge characteristics of the secondary battery 42 can be measured.
【0004】図5は充放電経路の説明図であり、図4と
同一符号は同一部分を示し、51は直流電源、52は電
子負荷部、Q1〜Q5はトランジスタ、R1,R2は抵
抗、RVは可変抵抗、OPAは演算増幅器を示す。又点
線矢印は放電経路、一点鎖線矢印は充電経路を示す。FIG. 5 is an explanatory view of a charge / discharge path. The same reference numerals as in FIG. 4 denote the same parts, 51 is a DC power supply, 52 is an electronic load unit, Q1 to Q5 are transistors, R1 and R2 are resistors, RV Denotes a variable resistor, and OPA denotes an operational amplifier. A dotted arrow indicates a discharging path, and a dashed-dotted arrow indicates a charging path.
【0005】直流電源51は、二次電池42の充電を行
う為の電源であり、通常は、商用交流電圧を整流した直
流電源とし、所望の出力電圧及び出力電流が得られる構
成とすることができる。又電子負荷部52は二次電池4
2の充放電時に流れる電流を制御するものである。この
電子負荷部52は、トランジスタQ5と演算増幅器OP
Aと抵抗R1,R2と可変抵抗RVとを含み、トランジ
スタQ5に流れる電流を抵抗R1により検出し、抵抗R
2を介して演算増幅器OPAの−端子に入力し、又直流
電源51から可変抵抗RVにより調整した比較電圧を演
算増幅器OPAの+端子に入力し、この比較電圧と、抵
抗R1による電流検出値とを演算増幅器OPAにより比
較し、制御部45により調整した可変抵抗RVの値に対
応した電流がトランジスタQ5に流れるように制御す
る。[0005] The DC power supply 51 is a power supply for charging the secondary battery 42. Usually, the DC power supply 51 is a DC power supply obtained by rectifying a commercial AC voltage, and is configured to obtain a desired output voltage and output current. it can. Also, the electronic load section 52 is a secondary battery 4
2 controls the current flowing during charging and discharging. The electronic load unit 52 includes a transistor Q5 and an operational amplifier OP
A, a resistor R1, a resistor R2, and a variable resistor RV. A current flowing through the transistor Q5 is detected by a resistor R1.
2, a comparison voltage adjusted by the variable resistor RV from the DC power supply 51 is input to the + terminal of the operational amplifier OPA, and the comparison voltage and the current detection value by the resistor R1 are input to the minus terminal of the operational amplifier OPA. Are compared by the operational amplifier OPA, and control is performed such that a current corresponding to the value of the variable resistor RV adjusted by the control unit 45 flows through the transistor Q5.
【0006】この電子負荷部52を介した二次電池42
の放電は、制御部42によりトランジスタQ2,Q3を
オンとすることにより、二次電池42→トランジスタQ
3→電子負荷部52のトランジスタQ5→トランジスタ
Q2を介した点線矢印の経路で行うことになる。その
時、制御部45により可変抵抗RVの抵抗値を制御し、
演算増幅器OPAに加える比較電圧を調整することによ
って、放電電流を制御することができる。The secondary battery 42 via the electronic load 52
Is discharged by turning on the transistors Q2 and Q3 by the control unit 42.
3 → transistor Q5 of electronic load unit 52 → dotted line arrow via transistor Q2. At that time, the control unit 45 controls the resistance value of the variable resistor RV,
The discharge current can be controlled by adjusting the comparison voltage applied to the operational amplifier OPA.
【0007】又二次電池42の充電は、制御部42によ
りトランジスタQ1,Q4をオンとすることにより、直
流電源51→トランジスタQ1→電子負荷部52のトラ
ンジスタQ5→トランジスタQ4→二次電池42→直流
電源51の一点鎖線矢印で示す経路で行うことになる。
その時、制御部45により可変抵抗RVの抵抗値を制御
し、演算増幅器OPAに加える比較電圧を調整すること
によって、充電電流を制御することができる。即ち、電
子負荷部52は、二次電池42の充電電流制御と放電電
流制御との両方に利用する構成の場合を示している。そ
して、充電又は放電に伴う二次電池42の端子電圧を、
図4に示す電圧測定部44により測定することにより、
充電電流と充電時間と端子電圧との関係や、放電電流と
放電時間と端子電圧との関係等を計測データとして得る
ことができる。The charging of the secondary battery 42 is performed by turning on the transistors Q1 and Q4 by the control unit 42, so that the DC power supply 51 → the transistor Q1 → the transistor Q5 of the electronic load unit 52 → the transistor Q4 → the secondary battery 42 → This is performed along the path indicated by the dashed-dotted arrow of the DC power supply 51.
At this time, the charging current can be controlled by controlling the resistance value of the variable resistor RV by the control unit 45 and adjusting the comparison voltage applied to the operational amplifier OPA. That is, the case where the electronic load unit 52 is used for both the charge current control and the discharge current control of the secondary battery 42 is shown. Then, the terminal voltage of the secondary battery 42 due to charging or discharging is
By measuring with the voltage measuring unit 44 shown in FIG.
The relationship between the charging current, the charging time, and the terminal voltage, and the relationship between the discharging current, the discharging time, and the terminal voltage can be obtained as measurement data.
【0008】[0008]
【発明が解決しようとする課題】二次電池42は多種多
様の構成を有するものであり、その充放電試験は、比較
的長時間を要するものである。又複数の充放電装置41
を設置して同時に複数の二次電池の充放電試験を行う場
合が一般的であり、被試験二次電池を充放電装置に接続
する為に、充電・放電部43と二次電池42との間の負
荷線と、電圧測定部44と二次電池との間の検出線との
接続が必要となる。この場合に、検出線の接続が外れる
と、二次電池の端子電圧の測定ができなくなるので、充
放電を正確に制御することができなくなり、過放電や過
充電が発生する。The rechargeable battery 42 has a variety of structures, and the charging / discharging test requires a relatively long time. Also, a plurality of charging / discharging devices 41
It is common to perform a charge / discharge test of a plurality of secondary batteries at the same time by installing the battery. In order to connect the secondary battery under test to a charge / discharge device, a charge / discharge unit 43 and a secondary battery 42 are connected. It is necessary to connect a load line between them and a detection line between the voltage measuring unit 44 and the secondary battery. In this case, if the connection of the detection line is disconnected, the terminal voltage of the secondary battery cannot be measured, so that the charge / discharge cannot be accurately controlled, and overdischarge or overcharge occurs.
【0009】又負荷線の接続が確実でない場合、接触不
良部分に大電流が流れるので、発熱や焼損等の事故が発
生する可能性がある。このような異常発生を見つけた場
合、充放電試験を最初から行う必要があり、試験期間が
延びる問題がある。本発明は、検出線や負荷線の外れ等
を確実に検出できるようにすることを目的とする。If the connection of the load line is not secure, a large current flows through the poor contact portion, which may cause an accident such as heat generation or burnout. When such an abnormal occurrence is found, a charge / discharge test must be performed from the beginning, and there is a problem that the test period is extended. An object of the present invention is to make it possible to reliably detect a disconnection of a detection line or a load line.
【0010】[0010]
【課題を解決するための手段】本発明の充放電装置は、
図1を参照して説明すると、二次電池2に対する充電及
び放電を行う充電・放電部3と、二次電池2の端子電圧
を測定する電圧測定部4と、この電圧測定部4により測
定した二次電池の端子電圧に応じて充電・放電部3を制
御する制御部5を含む充放電装置1であって、二次電池
2の端子と検出線で電圧測定部4と接続する電圧測定用
端子7a,7bに、高抵抗10を介して二次電池2の使
用電圧範囲外の電圧を印加する構成を備え、制御部5
は、電圧測定部4の測定電圧が、二次電池2の使用電圧
範囲外の時に異常発生と判定する構成を備えている。According to the present invention, there is provided a charge / discharge device comprising:
Referring to FIG. 1, a charging / discharging unit 3 for charging and discharging the secondary battery 2, a voltage measuring unit 4 for measuring a terminal voltage of the secondary battery 2, and measurement by the voltage measuring unit 4. A charging / discharging device 1 including a control unit 5 for controlling a charging / discharging unit 3 according to a terminal voltage of a secondary battery, for voltage measurement connected to a voltage measuring unit 4 by a terminal of the secondary battery 2 and a detection line. The control unit 5 includes a configuration in which a voltage outside the operating voltage range of the secondary battery 2 is applied to the terminals 7 a and 7 b via the high resistance 10.
Has a configuration in which it is determined that an abnormality has occurred when the voltage measured by the voltage measuring unit 4 is out of the operating voltage range of the secondary battery 2.
【0011】又二次電池に対する充電及び放電を行う充
電・放電部と、二次電池の端子電圧を測定する電圧測定
部と、この電圧測定部により測定した二次電池の端子電
圧に応じて充電・放電部を制御する制御部を含む充放電
装置であって、充電・放電部と二次電池とを負荷線を介
して接続する充放電用端子と、二次電池の端子と検出線
を介して接続する電圧測定用端子とを、電圧測定部に切
替接続する切替回路を設け、制御部は、充放電用端子の
電圧と、電圧測定用端子の電圧との差が所定値を超えて
いる場合に異常と判定する構成を備えている。A charging / discharging unit for charging and discharging the secondary battery; a voltage measuring unit for measuring a terminal voltage of the secondary battery; and a charging unit in accordance with the terminal voltage of the secondary battery measured by the voltage measuring unit. A charging / discharging device including a control unit for controlling the discharging unit, the charging / discharging terminal connecting the charging / discharging unit and the secondary battery via a load line, the secondary battery terminal via a detection line, A switching circuit for switching the voltage measurement terminal to be connected to the voltage measurement unit, and the control unit determines that a difference between the voltage of the charge / discharge terminal and the voltage of the voltage measurement terminal exceeds a predetermined value. In such a case, a configuration is provided in which it is determined to be abnormal.
【0012】又二次電池に対する充電及び放電を行う充
電・放電部と、二次電池の端子電圧を測定する電圧測定
部と、この電圧測定部により測定した二次電池の端子電
圧に応じて充電・放電部を制御する制御部を含む充放電
装置であって、電圧測定部は、充電・放電部と二次電池
とを負荷線を介して接続する充放電用端子と、検出線を
介して二次電池の端子と接続する電圧測定用端子との電
圧を測定する構成を有し、制御部は、充放電用端子の電
圧と、電圧測定用端子の電圧との差分が所定値を超えて
いる時に異常と判定する構成を備えている。A charging / discharging section for charging and discharging the secondary battery; a voltage measuring section for measuring a terminal voltage of the secondary battery; and a charging section in accordance with the terminal voltage of the secondary battery measured by the voltage measuring section. A charge / discharge device including a control unit that controls the discharge unit, wherein the voltage measurement unit includes a charge / discharge terminal that connects the charge / discharge unit and the secondary battery via a load line, and a detection line. The control unit has a configuration for measuring the voltage of the voltage measurement terminal connected to the terminal of the secondary battery, and the control unit determines that the difference between the voltage of the charge / discharge terminal and the voltage of the voltage measurement terminal exceeds a predetermined value. The system has a configuration to determine that an abnormality has occurred when there is an error.
【0013】[0013]
【発明の実施の形態】図1は本発明の第1の実施の形態
の説明図であり、1は充放電装置、2は二次電池、3は
充電・放電部、4は電圧測定部、5は制御部、6a,6
bh充放電用端子、7a,7bは電圧測定用端子、8は
負荷線、9は検出線、10は高抵抗(Ra)、11は高
抵抗10を介して検出線9に印加する異常検出用の電
圧、Riは電圧測定部4の入力インピーダンスを示す。
又充電・放電部3は、例えば、図5に示す電子負荷部5
2とトランジスタQ1〜Q4とを含む構成とすることが
できる。又電圧測定部4は、AD変換機能を有するディ
ジタル電圧測定手段を備えた構成とすることができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view of a first embodiment of the present invention, wherein 1 is a charge / discharge device, 2 is a secondary battery, 3 is a charge / discharge unit, 4 is a voltage measurement unit, 5 is a control unit, 6a, 6
bh charge / discharge terminal, 7a and 7b are voltage measurement terminals, 8 is a load line, 9 is a detection line, 10 is a high resistance (Ra), and 11 is an abnormality detection applied to the detection line 9 via the high resistance 10. And Ri indicate the input impedance of the voltage measuring unit 4.
The charge / discharge unit 3 is, for example, an electronic load unit 5 shown in FIG.
2 and transistors Q1 to Q4. Further, the voltage measuring section 4 can be configured to include digital voltage measuring means having an AD conversion function.
【0014】この電圧測定部4の入力インピーダンスR
iと、高抵抗Raと、検出線9の抵抗Rbと、二次電池
2の内部インピーダンスRbatとについて、(Ri,
Ra)≫(Rb,Rbat)の関係とし、又異常検出用
の電圧11をVa,二次電池2の電圧をVbとして、V
a≠Vbの関係とすると、電圧測定部4は、その入力イ
ンピーダンスRiの両端の電圧をAD変換して、ディジ
タル測定電圧として制御部5に転送する。その時、検出
線9が正常に接続されていると、異常検出用の電圧Va
は、高抵抗Raによってドロップし、低抵抗Rb,Rb
atを介した二次電池2の端子電圧Vbatが、入力イ
ンピーダンスRiの両端に現れる。The input impedance R of the voltage measuring unit 4
i, the high resistance Ra, the resistance Rb of the detection line 9, and the internal impedance Rbat of the secondary battery 2, (Ri,
Ra) ≫ (Rb, Rbat), where V is the voltage for abnormality detection 11 and Vb is the voltage of the secondary battery 2
Assuming that a ≠ Vb, the voltage measuring unit 4 converts the voltage across the input impedance Ri from analog to digital and transfers it to the control unit 5 as a digital measured voltage. At this time, if the detection line 9 is normally connected, the abnormality detection voltage Va
Are dropped by the high resistance Ra, and the low resistances Rb, Rb
The terminal voltage Vbat of the secondary battery 2 via at appears at both ends of the input impedance Ri.
【0015】又検出線9が電圧測定端子7a,7bから
外れた場合、或いは、二次電池2の端子から外れた場
合、電圧測定部4の入力インピーダンスRiの両端の電
圧、即ち、測定電圧Viは、 Vi=Va×Ri/(Ri+Ra) となる。When the detection line 9 is disconnected from the voltage measurement terminals 7a and 7b, or is disconnected from the terminal of the secondary battery 2, the voltage across the input impedance Ri of the voltage measurement unit 4, ie, the measured voltage Vi Is as follows: Vi = Va × Ri / (Ri + Ra)
【0016】この場合、二次電池2の電圧範囲をVb1
〜Vb2とすると、Vi≠(Vb1〜Vb2)となるよ
うに、異常検出用の電圧Vaや高抵抗Raを選択する。
従って、制御部5は、電圧測定部4の測定電圧ViがV
b1〜Vb2から外れている場合に、検出線9の接続が
外れていると判断して、図示を省略したアラームランプ
点灯やアラーム鳴動等により異常判定を表示することが
できる。In this case, the voltage range of the secondary battery 2 is Vb1
If Vb2, the voltage Va for abnormality detection and the high resistance Ra are selected so that Vi ≠ (Vb1 to Vb2).
Therefore, the control unit 5 determines that the measured voltage Vi of the voltage measurement unit 4 is V
When it is out of b1 to Vb2, it is determined that the connection of the detection line 9 is disconnected, and an abnormality determination can be displayed by turning on an alarm lamp (not shown) or sounding an alarm.
【0017】図2は本発明の第2の実施の形態の説明図
であり、21は充放電装置、22は二次電池、23は充
電・放電部、24は電圧測定部、25は制御部、26
a,26bは充放電用端子、27a,27bは電圧測定
用端子、28は負荷線、29は検出線、30は切替回路
を示す。FIG. 2 is an explanatory view of a second embodiment of the present invention, wherein 21 is a charge / discharge device, 22 is a secondary battery, 23 is a charge / discharge unit, 24 is a voltage measurement unit, and 25 is a control unit. , 26
Reference numerals a and 26b denote charge / discharge terminals, 27a and 27b denote voltage measurement terminals, 28 denotes a load line, 29 denotes a detection line, and 30 denotes a switching circuit.
【0018】この実施の形態は、充放電用端子26a,
26bと、電圧測定用端子27a,27bとを切替回路
30を介して電圧測定部24に切替接続するもので、こ
の切替回路30は、図示を省略した経路で制御部5又は
外部から制御される。負荷線28及び検出線29が正常
に接続されている場合、充放電用端子26a,26bを
電圧測定部24に切替接続して測定した電圧VBと、電
圧測定用端子27a,27bを電圧測定部24に切替接
続して測定した電圧VSと制御部25に通知する。In this embodiment, charging and discharging terminals 26a,
26b and the voltage measuring terminals 27a and 27b are switched and connected to the voltage measuring unit 24 via the switching circuit 30, and the switching circuit 30 is controlled from the control unit 5 or the outside via a path not shown. . When the load line 28 and the detection line 29 are normally connected, the voltage VB measured by switching the charging / discharging terminals 26a and 26b to the voltage measuring unit 24 and the voltage measuring terminals 27a and 27b are connected to the voltage measuring unit. 24 and notifies the control unit 25 of the measured voltage VS.
【0019】制御部25は、充放電の動作中又は開始時
又は開始前に於いて、電圧測定部24による測定結果を
基に、VB≒VSの場合は正常と判定し、VB≠VSの
場合は異常と判定する。例えば、二次電池22の放電中
の測定電圧がVB≪VSであると、負荷線28の接続部
分の接触不良や接続外れ等と判定することができる。又
VB≫VSであると、検出線29の接続外れと判定する
ことができる。なお、負荷線28による電圧降下等を考
慮した許容範囲を設定して、測定電圧VB,VSとの比
較判定を行うものである。又測定極性を含めて判定する
ことにより、負荷線28や検出線29の接続極性が正常
であるか否かを含めて検出することができる。During or before or after the charging / discharging operation, the control unit 25 determines that VB ≒ VS is normal based on the measurement result by the voltage measurement unit 24, and judges that VB ≠ VS is normal. Is determined to be abnormal. For example, when the measured voltage during the discharge of the secondary battery 22 is VB≪VS, it can be determined that the connection portion of the load line 28 has poor contact or disconnection. If VB≫VS, it can be determined that the detection line 29 is disconnected. It should be noted that an allowable range is set in consideration of a voltage drop due to the load line 28 and the like, and comparison with the measured voltages VB and VS is performed. Further, by making a determination including the measurement polarity, it is possible to detect whether or not the connection polarity of the load line 28 and the detection line 29 is normal.
【0020】制御部25は、前述の異常の判定結果を、
図示を省略した液晶パネル等の表示部に表示或いはラン
プによる表示を行うことができる。又それと同時に、ア
ラーム鳴動等を行うこともできる。それによって、負荷
線28や検出線29の接続外れや接触不良等に対する対
策を迅速にとることができるから、継続して二次電池2
2の充放電試験を行うことができる。The control unit 25 calculates the abnormality determination result as described above.
A display or a lamp can be displayed on a display unit such as a liquid crystal panel (not shown). At the same time, an alarm can be sounded. As a result, it is possible to quickly take measures against disconnection of the load line 28 and the detection line 29 and poor contact, and the like.
2 can be performed.
【0021】図3は本発明の第3の実施の形態の説明図
であり、31は充放電装置、32は二次電池、33は充
電・放電部、34は電圧測定部、35は制御部、36
a,36bは充放電用端子、37a,37bは電圧測定
用端子、38は負荷線、39は検出線を示す。FIG. 3 is an explanatory view of a third embodiment of the present invention, in which 31 is a charge / discharge device, 32 is a secondary battery, 33 is a charge / discharge unit, 34 is a voltage measurement unit, and 35 is a control unit. , 36
Reference numerals a and 36b denote charge / discharge terminals, 37a and 37b denote voltage measurement terminals, 38 denotes a load line, and 39 denotes a detection line.
【0022】前述の第2の実施の形態と同様に、充放電
用端子36a,36bの電圧と、電圧測定用端子37
a,37bの電圧とを電圧測定部34に於いて測定す
る。なお、電圧測定部34は、図2に示す切替回路を設
けて、充放電用端子36a,36bの電圧と、電圧測定
用端子37a,37bの電圧とを交互に測定する構成と
することもできる。そして、電圧測定結果を制御部35
に転送する。制御部35は、充放電用端子36a,36
bの電圧VBと、電圧測定用端子37a,37bの電圧
VSと、負荷線38の抵抗Rrと、充放電電流Irとに
より、 |VB−VS|>Rr・Ir か否かを判定する。As in the second embodiment, the voltages of the charge / discharge terminals 36a and 36b and the voltage measurement terminal 37
a and 37b are measured in the voltage measuring unit 34. The voltage measurement unit 34 may be configured to provide the switching circuit shown in FIG. 2 and alternately measure the voltage of the charge / discharge terminals 36a and 36b and the voltage of the voltage measurement terminals 37a and 37b. . Then, the voltage measurement result is transmitted to the control unit 35.
Transfer to The control unit 35 includes charge / discharge terminals 36a, 36
It is determined whether or not | VB−VS |> Rr · Ir based on the voltage VB of b, the voltage VS of the voltage measurement terminals 37a and 37b, the resistance Rr of the load line 38, and the charge / discharge current Ir.
【0023】二次電池32の充電中に、VB−VS>R
r・Irの関係となった場合は、電圧VBによって充電
しても二次電池32の電圧が上昇しない場合、又は二次
電池32の電圧を測定できない場合であるから、負荷線
38又は検出線39の接続外れや接触不良の場合と判定
することができる。During charging of the secondary battery 32, VB-VS> R
When the relationship of r · Ir is satisfied, the voltage of the secondary battery 32 does not increase even if the battery is charged with the voltage VB, or the voltage of the secondary battery 32 cannot be measured. 39 can be determined as a disconnection or poor contact.
【0024】又二次電池32の放電中に、BS−VB>
Rr・Irの関係となった場合は、二次電池32の電圧
が、充放電用端子36a,36bに印加されない状態を
示すから、負荷線38の接続外れや接触不良の場合と判
定することができる。又二次電池32の放電中に、VB
−VS>Rr・Irの関係となった場合は、二次電池3
2の電圧を測定できない場合であるから、検出線39の
接続外れと判定することができる。During discharge of the secondary battery 32, BS-VB>
When the relationship of Rr · Ir is satisfied, it indicates that the voltage of the secondary battery 32 is not applied to the charging / discharging terminals 36a and 36b. Therefore, it can be determined that the connection of the load line 38 is disconnected or the contact is poor. it can. Also, during discharge of the secondary battery 32, VB
-VS> Rr · Ir, the secondary battery 3
Since the voltage of the second line cannot be measured, it can be determined that the detection line 39 is disconnected.
【0025】制御部35は、前述の異常の判定結果を、
図示を省略した液晶パネル等の表示部に表示或いはラン
プによる表示を行うことができる。又それと同時に、ア
ラーム鳴動等を行うこともできる。それによって、負荷
線38や検出線39の接続外れや接触不良等に対する対
策を迅速にとることができるから、継続して二次電池3
2の充放電試験を行うことができる。The control unit 35 determines the result of the above-described abnormality determination as follows:
A display or a lamp can be displayed on a display unit such as a liquid crystal panel (not shown). At the same time, an alarm can be sounded. As a result, it is possible to quickly take measures against disconnection of the load line 38 and the detection line 39 and poor contact, etc.
2 can be performed.
【0026】[0026]
【発明の効果】以上説明したように、本発明は、充電・
放電部3によって負荷線8を介して二次電池2の充電及
び放電を行い、電圧測定部4により二次電池2の端子電
圧を検出線9を介して測定する充放電装置であって、電
圧測定用端子7a,7bに高抵抗10を介して異常検出
用の電圧11を加えた場合、正常時の電圧測定部4によ
る測定電圧は、二次電池2の端子電圧となるが、検出線
9の接続外れの場合は、高抵抗10を介した異常検出用
の電圧11によって、二次電池2の端子電圧の変化範囲
外の電圧を測定することになるから、制御部5は検出線
9の接続外れと判定することができる。従って、二次電
池2に対する異常な充放電を防止することができる。As described above, according to the present invention, charging and
A charging / discharging device that charges and discharges the secondary battery 2 via a load line 8 by a discharging unit 3 and measures a terminal voltage of the secondary battery 2 via a detection line 9 by a voltage measuring unit 4; When a voltage 11 for abnormality detection is applied to the measurement terminals 7a and 7b through the high resistance 10, the voltage measured by the voltage measurement unit 4 in the normal state is the terminal voltage of the secondary battery 2, but the detection line 9 In the case of disconnection, the voltage outside the change range of the terminal voltage of the secondary battery 2 is measured by the voltage 11 for abnormality detection via the high resistance 10. It can be determined that the connection has been lost. Therefore, abnormal charging and discharging of the secondary battery 2 can be prevented.
【0027】又第2,第3の実施の形態に示すように、
充放電用端子の電圧と、電圧測定用端子の電圧とをそれ
ぞれ電圧測定部により測定して、制御部に通知し、制御
部は、それらの電圧に大きな差が生じる場合に、検出線
又は負荷線の接続外れや接触不良等の異常と判定するこ
とができる。それによって、検出線や負荷線の接続異常
状態を迅速に検出し、それを修復することにより、二次
電池の充放電試験時の過充電又は過放電による破損等を
回避することができると共に、正常な充放電制御に迅速
に復帰させることができるから、無駄な充放電測定期間
を短縮することができる利点がある。As shown in the second and third embodiments,
The voltage of the charge / discharge terminal and the voltage of the voltage measurement terminal are each measured by the voltage measurement unit and notified to the control unit, and when a large difference occurs between the voltages, the control unit detects the detection line or the load. It can be determined that there is an abnormality such as disconnection of the wire or poor contact. Thereby, by detecting the abnormal connection state of the detection line and the load line quickly and repairing it, it is possible to avoid damage due to overcharge or overdischarge during the charge and discharge test of the secondary battery, Since normal charge / discharge control can be quickly restored, there is an advantage that a useless charge / discharge measurement period can be reduced.
【図1】本発明の第1の実施の形態の説明図である。FIG. 1 is an explanatory diagram of a first embodiment of the present invention.
【図2】本発明の第2の実施の形態の説明図である。FIG. 2 is an explanatory diagram of a second embodiment of the present invention.
【図3】本発明の第3の実施の形態の説明図である。FIG. 3 is an explanatory diagram of a third embodiment of the present invention.
【図4】従来例の充放電装置の説明図である。FIG. 4 is an explanatory diagram of a conventional charge / discharge device.
【図5】充放電経路の説明図である。FIG. 5 is an explanatory diagram of a charge / discharge path.
1 充放電装置 2 二次電池 3 充電・放電部 4 電圧測定部 5 制御部 6a,6b 充放電用端子 7a,7b 電圧測定用端子 8 負荷線 9 検出線 10 高抵抗 11 異常検出用の電圧 DESCRIPTION OF SYMBOLS 1 Charge / discharge device 2 Secondary battery 3 Charge / discharge part 4 Voltage measurement part 5 Control part 6a, 6b Charge / discharge terminal 7a, 7b Voltage measurement terminal 8 Load line 9 Detection line 10 High resistance 11 Voltage for abnormality detection
───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 2G016 CA00 CB12 CC01 CC04 CC06 CC07 CC16 CC27 CE03 5G003 AA01 BA01 DA07 EA09 5H030 AA00 AS20 FF43 FF44 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2G016 CA00 CB12 CC01 CC04 CC06 CC07 CC16 CC27 CE03 5G003 AA01 BA01 DA07 EA09 5H030 AA00 AS20 FF43 FF44
Claims (3)
電・放電部と、前記二次電池の端子電圧を測定する電圧
測定部と、該電圧測定部により測定した前記二次電池の
端子電圧に応じて前記充電・放電部を制御する制御部を
含む充放電装置に於いて、 前記二次電池の端子と検出線で前記電圧測定部と接続す
る電圧測定用端子に、高抵抗を介して前記二次電池の使
用電圧範囲外の電圧を印加する構成を備え、 前記制御部は、前記電圧測定部の測定電圧が前記二次電
池の使用電圧範囲外の時に異常発生と判定する構成を備
えたことを特徴とする充放電装置。A charge / discharge unit for charging and discharging a secondary battery, a voltage measuring unit for measuring a terminal voltage of the secondary battery, and a terminal voltage of the secondary battery measured by the voltage measuring unit. In a charge / discharge device including a control unit that controls the charge / discharge unit in response, a terminal of the secondary battery and a voltage measurement terminal connected to the voltage measurement unit by a detection line, through a high resistance The control unit is configured to apply a voltage outside the operating voltage range of the secondary battery, and the control unit is configured to determine that an abnormality has occurred when the measured voltage of the voltage measuring unit is outside the operating voltage range of the secondary battery. A charge / discharge device characterized by the above-mentioned.
電・放電部と、前記二次電池の端子電圧を測定する電圧
測定部と、該電圧測定部により測定した前記二次電池の
端子電圧に応じて前記充電・放電部を制御する制御部を
含む充放電装置に於いて、 前記充電・放電部と前記二次電池とを負荷線を介して接
続する充放電用端子と、前記二次電池の端子と検出線を
介して接続する電圧測定用端子とを、前記電圧測定部に
切替接続する切替回路を設け、 前記制御部は、前記充放電用端子の電圧と前記電圧測定
用端子の電圧との差が所定値を超えている場合に異常と
判定する構成を備えたことを特徴とする充放電装置。2. A charging / discharging unit for charging and discharging a secondary battery, a voltage measuring unit for measuring a terminal voltage of the secondary battery, and a terminal voltage of the secondary battery measured by the voltage measuring unit. A charging / discharging device including a control unit that controls the charging / discharging unit in response to the charging / discharging terminal that connects the charging / discharging unit and the secondary battery via a load line; And a voltage measurement terminal connected via a detection line, and a switching circuit for switching connection to the voltage measurement unit, wherein the control unit includes a voltage of the charge / discharge terminal and a voltage of the voltage measurement terminal. A charge / discharge device comprising a configuration for determining an abnormality when a difference between the charge and discharge exceeds a predetermined value.
電・放電部と、前記二次電池の端子電圧を測定する電圧
測定部と、該電圧測定部により測定した前記二次電池の
端子電圧に応じて前記充電・放電部を制御する制御部を
含む充放電装置に於いて、 前記電圧測定部は、前記充電・放電部と前記二次電池と
を負荷線を介して接続する充放電用端子と、検出線を介
して前記二次電池の端子と接続する電圧測定用端子との
電圧を測定する構成を有し、 前記制御部は、前記充放電用端子の電圧と前記電圧測定
用端子の電圧との差分が所定値を超えている時に異常と
判定する構成を備えたことを特徴とする充放電装置。3. A charging / discharging unit for charging and discharging the secondary battery, a voltage measuring unit for measuring a terminal voltage of the secondary battery, and a terminal voltage of the secondary battery measured by the voltage measuring unit. A charging / discharging device including a control unit that controls the charging / discharging unit in response to the charging / discharging terminal, wherein the voltage measuring unit is a charging / discharging terminal that connects the charging / discharging unit and the secondary battery via a load line. And a configuration for measuring a voltage of a voltage measurement terminal connected to a terminal of the secondary battery via a detection line, wherein the control unit controls the voltage of the charge / discharge terminal and the voltage of the voltage measurement terminal. A charging / discharging device comprising: a configuration for determining an abnormality when a difference from a voltage exceeds a predetermined value.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000313669A JP2002125322A (en) | 2000-10-13 | 2000-10-13 | Charging and discharging device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000313669A JP2002125322A (en) | 2000-10-13 | 2000-10-13 | Charging and discharging device |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2002125322A true JP2002125322A (en) | 2002-04-26 |
Family
ID=18793049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000313669A Pending JP2002125322A (en) | 2000-10-13 | 2000-10-13 | Charging and discharging device |
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Country | Link |
---|---|
JP (1) | JP2002125322A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006300482A (en) * | 2005-04-25 | 2006-11-02 | Hoshizaki Electric Co Ltd | Automatic ice-making machine |
JP2013005569A (en) * | 2011-06-15 | 2013-01-07 | Fujitsu Telecom Networks Ltd | Charge-discharge controller, and operation method thereof |
CN107276137A (en) * | 2016-03-31 | 2017-10-20 | 株式会社牧田 | Charging device |
CN107533097A (en) * | 2015-05-04 | 2018-01-02 | 罗伯特·博世有限公司 | For detecting the method connected by regulation of at least one accumulator and onboard power system |
JP7491832B2 (en) | 2020-12-24 | 2024-05-28 | 日鉄テックスエンジ株式会社 | Method for determining abnormality of electrical connection terminal of charge/discharge inspection device |
-
2000
- 2000-10-13 JP JP2000313669A patent/JP2002125322A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006300482A (en) * | 2005-04-25 | 2006-11-02 | Hoshizaki Electric Co Ltd | Automatic ice-making machine |
JP4644520B2 (en) * | 2005-04-25 | 2011-03-02 | ホシザキ電機株式会社 | Automatic ice machine |
JP2013005569A (en) * | 2011-06-15 | 2013-01-07 | Fujitsu Telecom Networks Ltd | Charge-discharge controller, and operation method thereof |
CN107533097A (en) * | 2015-05-04 | 2018-01-02 | 罗伯特·博世有限公司 | For detecting the method connected by regulation of at least one accumulator and onboard power system |
CN107276137A (en) * | 2016-03-31 | 2017-10-20 | 株式会社牧田 | Charging device |
JP7491832B2 (en) | 2020-12-24 | 2024-05-28 | 日鉄テックスエンジ株式会社 | Method for determining abnormality of electrical connection terminal of charge/discharge inspection device |
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