JPH0135582B2 - - Google Patents
Info
- Publication number
- JPH0135582B2 JPH0135582B2 JP261783A JP261783A JPH0135582B2 JP H0135582 B2 JPH0135582 B2 JP H0135582B2 JP 261783 A JP261783 A JP 261783A JP 261783 A JP261783 A JP 261783A JP H0135582 B2 JPH0135582 B2 JP H0135582B2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- battery
- batteries
- charging
- partial
- 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
Links
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Landscapes
- Control Of Charge By Means Of Generators (AREA)
Description
【発明の詳細な説明】
本発明は、直列接続されたバツテリーの一部に
別系統の負荷が接続されているバツテリー電源に
おける充電装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a charging device for a battery power source in which a load of another system is connected to a part of batteries connected in series.
例えば大型の内燃機関においては、セルモータ
や電子ガバナの電源電圧が24V、点火系統の電源
電圧が12Vとなつたものがあり、12Vのバツテリ
ーを２個直列に接続し、全体で24Vの電圧を、ま
た１個で12Vの電圧をそれぞれ取り出している。
このようなバツテリー電源を充電する場合は、全
体を24V用の充電器で充電したり、12V電源とし
て利用されている一方のバツテリーのみを12V用
充電器で別途充電することが一般に行なわれてい
る。 For example, in some large internal combustion engines, the power supply voltage for the starter motor and electronic governor is 24V, and the power supply voltage for the ignition system is 12V.Two 12V batteries are connected in series to generate a total voltage of 24V. Also, each piece takes out a voltage of 12V.
When charging such a battery power source, it is generally done to charge the entire battery with a 24V charger, or to separately charge only one battery that is used as a 12V power source with a 12V charger. .
しかしながら、このような充電方法では24V系
統と12V系統とで使用する電気量に差があるた
め、直列に接続して充電した場合に２個のバツテ
リー間で充電状態の不平衡が生じ、一方が過充電
となつても他方は充電不足という結果となつて、
その後の機関の運転に不都合が生じるという問題
があり、また一部のバツテリーのみを別途充電す
ることは取扱いが面倒で煩わしいものであつた。 However, in this charging method, there is a difference in the amount of electricity used between the 24V system and the 12V system, so if the two batteries are connected in series and charged, there will be an imbalance in the charging state between the two batteries, and one battery will become unbalanced. Even if one battery is overcharged, the other battery will be undercharged.
There is a problem in that the subsequent operation of the engine is inconvenient, and separately charging only some of the batteries is troublesome and cumbersome to handle.
本発明はこの点に着目し、不平衡を生ずること
なくすべてのバツテリーを適正に充電することの
できる充電装置を提供することを目的としてなさ
れたものであつて、直列に接続された複数個の全
バツテリーに充電電力を供給する高電圧充電電源
と、低電圧負荷にも給電する一部の部分バツテリ
ーに充電電力を供給するために前記高電圧充電電
源の出力を降圧してなる低電圧充電電源と、全バ
ツテリーの端子間電圧Ａを検出する手段と、部分
バツテリーの端子間電圧Ｂを検出する手段と、電
圧Ａに部分バツテリーの定格電圧B0と全バツテ
リーの定格電圧A0との比B0／A0を乗じた値と電
圧Ｂの値とを比較して電圧Ｂの値が小さい場合に
充電信号を出力する比較手段と、比較手段の充電
信号によつて低電圧充電電源を部分バツテリーに
接続するスイツチング手段とを備えたことを特徴
としている。すなわち、低電圧負荷の電源も兼ね
る部分バツテリーの方が放電量が大きく、端子間
電圧も低くなりやすいものであるが、この端子間
電圧の低下を部分バツテリーと全バツテリーの定
格端子間電圧の比で比較して検出し、部分バツテ
リーのみを余分に充電するようにしたものであ
り、充電状態の不平衡を回避することができるの
である。 The present invention has focused on this point and has been made for the purpose of providing a charging device that can properly charge all batteries without causing imbalance. A high-voltage charging power supply that supplies charging power to all batteries, and a low-voltage charging power supply that steps down the output of the high-voltage charging power supply to supply charging power to some partial batteries that also supply power to low-voltage loads. , a means for detecting the voltage A between the terminals of all the batteries, a means for detecting the voltage B between the terminals of the partial batteries, and a ratio B of the rated voltage B 0 of the partial batteries to the rated voltage A 0 of the entire batteries to the voltage A. Comparing means that compares the value multiplied by 0 / A 0 and the value of voltage B and outputs a charging signal when the value of voltage B is small, and the charging signal of the comparing means is used to control the low voltage charging power supply to a partial battery. It is characterized by comprising a switching means for connecting to the. In other words, a partial battery that also serves as a power source for a low-voltage load has a larger discharge amount and tends to have a lower terminal voltage, but this drop in terminal voltage can be calculated by calculating the ratio of the rated terminal voltage of the partial battery and the full battery. This allows only the partial batteries to be charged extra by comparing and detecting them, and it is possible to avoid imbalances in the state of charge.
次に、本発明の一実施例を図面にもとづいて説
明する。 Next, one embodiment of the present invention will be described based on the drawings.
第１図は全体のブロツク図であり、１はバツテ
リー電源、２，３は直列に接続されてバツテリー
電源１を構成するバツテリー、４はバツテリー
２，３の全体に接続された高電圧負荷、５は部分
バツテリーに相当するバツテリー３のみに接続さ
れた低電圧負荷、６は充電用発電機、７は充電用
発電機６の電圧レギユレータ、８は電圧変換器、
９はスイツチである。充電用発電機６は高電圧充
電電源であつて、全バツテリーに相当するバツテ
リー電源１に接続され、これを充電するのに必要
な電圧、すなわちバツテリー電圧１の定格端子電
圧A0より若干高い電圧を発生するものであり、
電圧変換器８は低電圧充電電源であつて、スイツ
チ９を介してバツテリー３に接続され、発電機６
の出力をバツテリー３を充電するのに必要な電
圧、すなわちバツテリー３の定格端子電圧B0よ
り若干高い電圧に変換するものである。 FIG. 1 is an overall block diagram, in which 1 is a battery power supply, 2 and 3 are batteries connected in series to form the battery power supply 1, 4 is a high voltage load connected to all of the batteries 2 and 3, and 5 is a battery power supply. is a low voltage load connected only to the battery 3 corresponding to a partial battery, 6 is a charging generator, 7 is a voltage regulator of the charging generator 6, 8 is a voltage converter,
9 is a switch. The charging generator 6 is a high-voltage charging power source, and is connected to the battery power source 1 corresponding to all batteries, and has a voltage slightly higher than the voltage required to charge it, that is, the rated terminal voltage A 0 of the battery voltage 1. is generated,
The voltage converter 8 is a low voltage charging power source, and is connected to the battery 3 via a switch 9, and is connected to the generator 6.
This converts the output of the battery 3 into a voltage necessary to charge the battery 3, that is, a voltage slightly higher than the rated terminal voltage B0 of the battery 3.
１１はバツテリー電源１に接続されて全体の端
子電圧Ａを検出する電圧検出器、１２はバツテリ
ー３に接続されてバツテリー３の端子電圧Ｂを検
出する電圧検出器、１３はゲイン調整器、１４は
電圧比較器、１５は増幅器である。ゲイン調整器
１３は、電圧検出器１１の検出値をB0／A0倍し
た値に変換するものであるが、これは電圧検出器
１２側に設けて電圧ＢをA0／B0倍しても原理的
には同一である。なお、厳密にはB0／A0を乗じ
た値よりもやや小さい値に変換される。例えば、
バツテリー２，３が同一定格電圧の場合には、1/
２よりやや小さい値に変換し、これとバツテリー
３の実際の電圧とを比較するのである。電圧比較
器１４はこの二つの電圧を比較し、電圧Ｂが電圧
ＡのB0／A0倍より小さい場合には充電信号を増
幅器１５に出力し、増幅器１５の出力によつてス
イツチ９が閉じられ、電圧変換器８によりバツテ
リー３の充電が行なわれる。スイツチ９として
は、例えばリレーや電磁接触器が用いられる。 11 is a voltage detector connected to the battery power source 1 to detect the overall terminal voltage A; 12 is a voltage detector connected to the battery 3 to detect the terminal voltage B of the battery 3; 13 is a gain adjuster; and 14 is a voltage detector. A voltage comparator, 15 is an amplifier. The gain adjuster 13 converts the detected value of the voltage detector 11 into a value that is multiplied by B 0 /A 0 , but it is provided on the voltage detector 12 side and multiplies the voltage B by A 0 /B 0 . However, the principle is the same. Note that, strictly speaking, it is converted to a value slightly smaller than the value multiplied by B 0 /A 0 . for example,
If batteries 2 and 3 have the same rated voltage, 1/
This is converted to a value slightly smaller than 2 and compared with the actual voltage of battery 3. The voltage comparator 14 compares these two voltages, and if the voltage B is smaller than B 0 /A 0 times the voltage A, it outputs a charging signal to the amplifier 15, and the output of the amplifier 15 closes the switch 9. The battery 3 is charged by the voltage converter 8. As the switch 9, for example, a relay or an electromagnetic contactor is used.
こうしてバツテリー２，３の全体を充電用発電
機６で充電しながら、バツテリー３だけを電圧変
換器８の出力によつて余分に充電するのである。
バツテリー３の充電が進んでバツテリー２と平衡
する状態に達すると、バツテリー３の端子電圧Ｂ
が回復して来るので、この電圧の回復を電圧比較
器１４が検出して充電信号を停止し、スイツチ９
が開いて以後はバツテリー２，３の全体に対する
充電が行なわれる。 In this way, while the entire batteries 2 and 3 are being charged by the charging generator 6, only the battery 3 is extra charged by the output of the voltage converter 8.
When charging of battery 3 progresses and reaches a state where it is in equilibrium with battery 2, the terminal voltage of battery 3 is B.
is recovered, the voltage comparator 14 detects the recovery of this voltage, stops the charging signal, and switches the switch 9.
After opening, the entire batteries 2 and 3 are charged.
第２図は第１図の鎖線で囲んだ部分の具体的回
路の一例を示す。この例では、ボルテージフオロ
ワーとして作動する演算増幅器２１，２２と、入
力信号レベル調整用の可変抵抗器２３，２４とで
電圧検出器１１，１２及びゲイン調整器１３の機
能を有する回路が構成されており、各演算増幅器
２１，２２の出力を電圧比較器１４として作動す
る演算増幅器２５で比較し、その出力で増幅器１
５として作動する半導体スイツチ素子２６をオン
オフ制御するようになつている。２７は演算増幅
器２５にヒステリシス特性を持たせて動作を安定
化するための抵抗である。 FIG. 2 shows an example of a specific circuit of the portion surrounded by the chain line in FIG. In this example, a circuit having the functions of voltage detectors 11 and 12 and gain adjuster 13 is configured by operational amplifiers 21 and 22 that operate as voltage followers and variable resistors 23 and 24 for adjusting the input signal level. The outputs of each operational amplifier 21 and 22 are compared by an operational amplifier 25 that operates as a voltage comparator 14, and the output is used to compare the output of each operational amplifier 21 and 22.
The semiconductor switch element 26, which operates as 5, is turned on and off. 27 is a resistor for giving the operational amplifier 25 a hysteresis characteristic to stabilize its operation.
以上述べたように、本発明は、低電圧負荷の電
源も兼ねている部分バツテリーの端子間の電圧を
全バツテリーの端子間電圧と比較し、所定の電圧
比以上に電圧が低下している時にこれを検出して
部分バツテリーのみを余分に充電するものであ
り、電圧の異なる負荷を有するバツテリー電源の
各バツテリーを常に不平衡のない正常な充電状態
に保つことができる利点がある。 As described above, the present invention compares the voltage between the terminals of a partial battery that also serves as a power source for a low-voltage load with the voltage between the terminals of all batteries, and when the voltage has decreased beyond a predetermined voltage ratio, This is detected and only the partial batteries are charged extra, which has the advantage that each battery of the battery power supply, which has loads of different voltages, can always be kept in a normal charging state without imbalance.
第１図は本発明の一実施例のブロツク図、第２
図は同上の要部の具体的な回路図である。
１……バツテリー電源、２，３……バツテリ
ー、４……高電圧負荷、５……低電圧負荷、６…
…充電用発電機（高電圧充電電源）、８……電圧
変換器（低電圧充電電源）、９……スイツチ、１
１，１２……電圧検出器、１３……ゲイン調整
器、１４……電圧比較器。
FIG. 1 is a block diagram of one embodiment of the present invention, and FIG.
The figure is a specific circuit diagram of the main parts of the same as above. 1... Battery power supply, 2, 3... Battery, 4... High voltage load, 5... Low voltage load, 6...
...Charging generator (high voltage charging power supply), 8...Voltage converter (low voltage charging power supply), 9...Switch, 1
1, 12... Voltage detector, 13... Gain adjuster, 14... Voltage comparator.
Claims (1)
電圧負荷に給電し、且つ前記バツテリーの一部の
部分バツテリーで低電圧負荷にも給電するように
構成されたバツテリー電源の充電装置において、 全バツテリーに充電電力を供給する高電圧充電
電源と、 前記高電圧充電電源の出力を降圧して部分バツ
テリーに充電電力を供給する低電圧充電電源と、 全バツテリーの端子間電圧Ａを検出する電圧検
出手段と、 部分バツテリーの端子間電圧Ｂを検出する電圧
検出手段と、 電圧Ａの値に〔部分バツテリーの定格電圧／全
体バツテリーの定格電圧〕を乗じた値と電圧Ｂの
値とを比較し、電圧Ｂの値が小さい場合に充電信
号を出力する比較手段と、 比較手段の充電信号によつて低電圧充電電源を
部分バツテリーに接続するスイツチング手段と、 を備えたことを特徴とするバツテリー電源の充電
装置。[Scope of Claims] 1. A battery power supply configured to supply power to a high voltage load using a plurality of all batteries connected in series, and to also supply power to a low voltage load using some partial batteries of the batteries. The charging device includes: a high-voltage charging power source that supplies charging power to all batteries; a low-voltage charging power source that steps down the output of the high-voltage charging power source to supply charging power to partial batteries; and a voltage A between terminals of all batteries. voltage detection means for detecting voltage B between the terminals of the partial battery; voltage detection means for detecting voltage B between terminals of the partial battery; and a value obtained by multiplying the value of voltage A by [rated voltage of partial battery/rated voltage of whole battery] and the value of voltage B. and a switching means for connecting the low-voltage charging power source to the partial battery based on the charging signal of the comparing means. A battery-powered charging device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP261783A JPS59127537A (en) | 1983-01-10 | 1983-01-10 | Charger for battery power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP261783A JPS59127537A (en) | 1983-01-10 | 1983-01-10 | Charger for battery power source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59127537A JPS59127537A (en) | 1984-07-23 |
| JPH0135582B2 true JPH0135582B2 (en) | 1989-07-26 |
Family
ID=11534361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP261783A Granted JPS59127537A (en) | 1983-01-10 | 1983-01-10 | Charger for battery power source |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59127537A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2021100112A1 (en) * | 2019-11-19 | 2021-11-25 | 株式会社堤水素研究所 | DC power system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60162948U (en) * | 1984-04-06 | 1985-10-29 | 三菱電機株式会社 | charging device |
| JPS6192142U (en) * | 1984-11-19 | 1986-06-14 | ||
| JP5439996B2 (en) * | 2009-07-14 | 2014-03-12 | 株式会社リコー | Image forming apparatus and power supply apparatus |
| JP5995847B2 (en) * | 2011-06-30 | 2016-09-21 | 古河電気工業株式会社 | Power supply device and power supply method |
-
1983
- 1983-01-10 JP JP261783A patent/JPS59127537A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2021100112A1 (en) * | 2019-11-19 | 2021-11-25 | 株式会社堤水素研究所 | DC power system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59127537A (en) | 1984-07-23 |
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