JPS638697B2 - - Google Patents
Info
- Publication number
- JPS638697B2 JPS638697B2 JP55093857A JP9385780A JPS638697B2 JP S638697 B2 JPS638697 B2 JP S638697B2 JP 55093857 A JP55093857 A JP 55093857A JP 9385780 A JP9385780 A JP 9385780A JP S638697 B2 JPS638697 B2 JP S638697B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- battery
- voltage
- rectifier
- charging circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000002950 deficient Effects 0.000 claims description 9
- 239000003990 capacitor Substances 0.000 description 3
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は、電池充電器さらに詳しくいうと、ニ
ツケルカドミウム電池用急速充電器に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to battery chargers and, more particularly, to quick chargers for nickel cadmium batteries.
ニツケルカドミウム電池は普通10時間位の長時
間を要する緩速充電が行なわれているが、近時、
15分〜１時間位で充電を行なう急速充電法が開発
されて来た。しかしながら、この急速充電は電池
の特性をよく把握して行なわないと、爆発の危険
を伴い、電池の動作寿命を著しく損なう欠点があ
る。 Nickel cadmium batteries are normally charged slowly, which takes about 10 hours, but recently,
Rapid charging methods have been developed that charge batteries in about 15 minutes to 1 hour. However, unless this rapid charging is carried out with a thorough understanding of the characteristics of the battery, it is accompanied by a risk of explosion and has the drawback of significantly shortening the operational life of the battery.
そこで研究したところ、一般的にこの種の電池
の急速充電にあたつては、下記のような条件が満
足されることが必要であることがわかつた。 As a result of research, it was found that the following conditions generally need to be satisfied for rapid charging of this type of battery.
(1) 絶対に過充電しないこと（爆発の危険と動作
寿命の短縮を防ぐ）。(1) Never overcharge (to prevent explosion risk and shortened operating life).
(2) 不良電池の存在により過充電を生ずることが
ないように、不良電池はすみやかに検出、除去
できること。(2) Defective batteries must be able to be detected and removed promptly so that overcharging will not occur due to the presence of a defective battery.
(3) 電池の保全上100％急速充電しないで、70〜
80％急速充電し、残りの20〜30％を細流充電す
ること。(3) To preserve the battery, do not charge it 100% quickly and charge it to 70~
Fast charge 80% and trickle charge the remaining 20-30%.
(4) 入力電源電圧が変化したり、周囲温度が変化
しても影響を受けないこと。(4) Not affected by changes in input power supply voltage or changes in ambient temperature.
(5) 充電器への接続を間違えたり、充電器の出力
側が短絡した場合、充電が直ちに停止されるこ
と。(5) If the connection to the charger is incorrect or the output side of the charger is short-circuited, charging shall be stopped immediately.
本発明は、以上の諸条件を満足する充電器を提
供するもので、降圧用変圧器と、整流回路と、該
整流回路の出力と電池接続端子に接続されるブレ
ーカとの間に直列に接続され、限流抵抗および制
御整流器を含む主充電回路と、該主充電回路と並
列に接続され、大抵抗値の限流抵抗を含む細流充
電回路と、前記ブレーカに接続され、電池出力が
所定の設定電圧を越えるとき、出力を発生し、前
記主充電回路の制御整流器をターンオフする回路
と、充電の開始から一定時間を計時し、この一定
時間の経過時に電池出力が一定電圧に充電されて
いないとき、前記主充電回路の制御整流器をター
ンオフする不良電池検出用の遅延回路とを含み、
電池が所定の電圧に達するまでは、主充電回路に
よる充電を行ない、その後は細流充電回路による
充電を行なうとともに、不良電池の迅速な検出を
可能とすることを特徴とするものである。電池の
急速充電による充電電圧を比較する基準電圧は、
整流回路の出力を抵抗とツエナーダイオードの直
列回路に導くことにより得られるが、ツエナーダ
イオードの使用により、入力商業電源電圧の変動
に左右されない基準電圧が得られる。また、この
基準電圧設定回路には、サーミスタを接続したの
で、周囲温度による設定電圧の補償も可能とな
る。 The present invention provides a charger that satisfies the above conditions, and is connected in series between a step-down transformer, a rectifier circuit, and a breaker connected to the output of the rectifier circuit and a battery connection terminal. a main charging circuit including a current limiting resistor and a controlled rectifier; a trickle charging circuit connected in parallel with the main charging circuit and including a current limiting resistor with a large resistance value; A circuit that generates an output and turns off the control rectifier of the main charging circuit when a set voltage is exceeded, and a circuit that measures a certain period of time from the start of charging, and when this certain period of time has elapsed, the battery output is not charged to a certain voltage. a delay circuit for detecting a defective battery that turns off a control rectifier of the main charging circuit;
The main charging circuit performs charging until the battery reaches a predetermined voltage, and then the trickle charging circuit performs charging, and the battery is characterized by being able to quickly detect a defective battery. The reference voltage for comparing charging voltages due to rapid charging of batteries is:
This is obtained by leading the output of the rectifier circuit into a series circuit of a resistor and a Zener diode, and the use of the Zener diode provides a reference voltage that is independent of fluctuations in the input commercial power supply voltage. Furthermore, since a thermistor is connected to this reference voltage setting circuit, it is also possible to compensate for the set voltage depending on the ambient temperature.
以下、図面を参照して本発明を好ましい具体例
について説明する。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
変圧器Ｔに接続される100VA（入力電圧）は、
センタータツプを備える二次巻線により7.7Vに
降圧され、整流器D1およびD2により整流され、
直流に変換される。直流に変換された出力は、抵
抗R17にて限流され（電池３本のとき1.6A、24本
のとき0.45A）、制御整流器であるサイリスタTh2
およびプレー力BRを介して電池Ｂを充電する。
この抵抗１７およびサイリスタTh2を含む回路は
主充電回路を構成しており、そしてこの主充電回
路にはダイオードD3（逆流阻止用）および抵抗R1
を含む細流充電回路が並列に接続されており、主
充電回路を通しての充電により電池が所定電圧に
達したとき主充電回路に代つて電池を細流充電
（80ｍＡ〜100ｍＡ）する。 The 100VA (input voltage) connected to transformer T is
It is stepped down to 7.7V by a secondary winding with a center tap and rectified by rectifiers D 1 and D 2 .
converted to direct current. The output converted to DC is current limited by resistor R17 (1.6A when 3 batteries, 0.45A when 24 batteries), and is controlled by thyristor Th2 , which is a controlled rectifier.
and charges battery B via play force BR.
A circuit including this resistor 17 and thyristor Th 2 constitutes a main charging circuit, and this main charging circuit includes a diode D 3 (for reverse current blocking) and a resistor R 1
A trickle charging circuit including the main charging circuit is connected in parallel to perform trickle charging (80 mA to 100 mA) of the battery in place of the main charging circuit when the battery reaches a predetermined voltage due to charging through the main charging circuit.
電池Ｂの出力は細流充電回路を介して、抵抗
R9，R10，VR，R11およびR6より成る分圧回路に
接続され、可変抵抗VRのタツプより検出電圧が
取り出され、これが比較増幅器含む回路IC1の２
番ピンに結合される。他方、整流回路D1および
D2の出力は、整流器D4およびコンデンサC1で平
滑され、平滑された直流は、直列接続された抵抗
R5およびツエナーダイオードZD1に供給され、ツ
エナーダイオードZD1の両端に安定化された基準
電圧が設定され、そしてこの基準電圧は回路IC1
の１番ピンに接続される。１番ピンと２番ピンの
電圧入力は、IC1の比較増幅器で比較され、２番
ピンの電圧が１番ピンの電圧より高くなるとき、
回路IC1の12番ピンに高電圧を生ずる。本具体例
においては、電池電圧が4.6Vを越えたとき（電
池３本）、回路IC1の２番ピンの電圧が１番ピンの
電圧を越え、12番ピンに高電圧が出るように設定
されている（電池が24本のときは設定電圧は例え
ば34.5Vである）。12番ピンの電圧が上ると、該
ピンに制御端子が接続されたサイリスタTh1が点
弧され、その両端の電圧が1V低下し、サイリス
タTh2の制御端子への制御電流はなくなつて該サ
イリスタTh2はターンオフされ、主制御回路は切
断される。それゆえ、それ以後はダイオードD3
および抵抗R1を含む細流充電回路を介しての充
電が行なわれる。このとき、発光ダイオード
LEDを流れる電流がなくなるため、LEDは発光
を止め、主充電回路による充電が終つたことが報
知される。なお、設定電圧は、可変抵抗VRによ
り調節されるが、分圧回路の抵抗R9には並列に
サーミスタTHが接続されており、その等価抵抗
が周囲温度により自動的に変化するので設定電圧
を周囲温度の変動に対して自動的に補償すること
ができる。また、基準電圧はツエナーダイオード
ZD1により設定されるから商業入力電源電圧に変
動があつても一定の基準電圧を得ることができ
る。 The output of battery B is connected to a resistor through a trickle charging circuit.
It is connected to a voltage divider circuit consisting of R 9 , R 10 , VR, R 11 and R 6 , and the detected voltage is taken out from the tap of variable resistor VR, and this is applied to the circuit IC 1 including the comparator amplifier.
Connected to the number pin. On the other hand, rectifier circuit D 1 and
The output of D 2 is smoothed by rectifier D 4 and capacitor C 1 , and the smoothed direct current is passed through the resistor connected in series.
R 5 and the Zener diode ZD 1 , a regulated reference voltage is set across the Zener diode ZD 1 , and this reference voltage is connected to the circuit IC 1
Connected to pin 1 of The voltage inputs of pin 1 and pin 2 are compared by the comparator amplifier of IC 1 , and when the voltage of pin 2 becomes higher than the voltage of pin 1,
Generates high voltage at pin 12 of circuit IC 1 . In this specific example, when the battery voltage exceeds 4.6V (3 batteries), the voltage at pin 2 of circuit IC 1 exceeds the voltage at pin 1, and the setting is made such that a high voltage appears at pin 12. (If there are 24 batteries, the set voltage is, for example, 34.5V). When the voltage at pin 12 rises, thyristor Th 1 , whose control terminal is connected to this pin, is fired, the voltage across it drops by 1V, and the control current to the control terminal of thyristor Th 2 disappears. Thyristor Th 2 is turned off and the main control circuit is disconnected. Therefore, after that diode D 3
Charging takes place via a trickle charging circuit including a resistor R 1 and a resistor R 1 . At this time, the light emitting diode
Since no current flows through the LED, the LED stops emitting light, indicating that the main charging circuit has finished charging. The set voltage is adjusted by the variable resistor VR, but a thermistor TH is connected in parallel to resistor R9 of the voltage divider circuit, and its equivalent resistance automatically changes depending on the ambient temperature, so the set voltage cannot be adjusted. Can automatically compensate for changes in ambient temperature. Also, the reference voltage is a Zener diode
Since it is set by ZD 1 , a constant reference voltage can be obtained even if the commercial input power supply voltage fluctuates.
上述のように、直列接続された電池の一部に不
良電池があつた場合には、過充電を防ぐため、そ
れが早急に検出されて除去できることが望まれ
る。これは、この具体例においては、抵抗R2お
よびコンデンサC2および比較増幅器を含む回路
IC2より成る遅延回路、ならびに回路IC1に含まれ
る残りの比較増幅器で行なわれる。抵抗R2およ
びC2は時定数回路を構成しており、本具体例に
おいては40秒を計時し、その時間を過ぎると回路
IC2の３番ピンを高出力から低出力にする。回路
IC2の出力は回路IC1の残りの比較増幅器７番ピン
にダイオードD5を介して接続されているから、
このピンは上記設定期間の間高電位に留まる。他
方、この比較増幅器の他方の入力ピン、すなわち
６番ピンには、整流器D4およびコンデンサC1で
平滑された電圧を抵抗R3およびR4で分圧した一
定電圧が印加されており、そしてこの電圧は７番
ピンに印加される前記期間の電圧より低いから、
回路C1の10番ピンは低電位にあり、この期間の
間サイリスタTh1は点弧せず、したがつてサイリ
スタTh2の制御端子に制御電流が流入し続け、サ
イリスタTh2はターンオフされることはない。し
たがつて主充電回路はこの間は遮断されない。 As mentioned above, if some of the batteries connected in series are defective, it is desirable to be able to quickly detect and remove them in order to prevent overcharging. This is, in this specific example, a circuit that includes resistor R 2 and capacitor C 2 and a comparator amplifier.
This is done with a delay circuit consisting of IC 2 and the remaining comparator amplifier included in circuit IC 1 . Resistors R 2 and C 2 constitute a time constant circuit, which in this specific example measures 40 seconds, and after that time the circuit shuts off.
Change pin 3 of IC 2 from high output to low output. circuit
Since the output of IC 2 is connected to pin 7 of the remaining comparator amplifier of circuit IC 1 via diode D 5 ,
This pin remains at a high potential during the set period. On the other hand, a constant voltage obtained by dividing the voltage smoothed by rectifier D 4 and capacitor C 1 by resistors R 3 and R 4 is applied to the other input pin of this comparison amplifier, that is, pin 6, and Since this voltage is lower than the voltage applied to pin 7 during the above period,
Pin 10 of circuit C 1 is at a low potential and during this period thyristor Th 1 does not fire, so the control current continues to flow into the control terminal of thyristor Th 2 and thyristor Th 2 is turned off. Never. Therefore, the main charging circuit is not cut off during this time.
回路IC1の７番ピンには、遅延回路の出力に加
えて、電池出力を分圧する抵抗R3およびR4の接
続点が接続されており、電池電圧の検出出力がこ
の７番ピンに印加されている。電池に不良のもの
があり、充電電圧が十分に上昇しない場合には、
上記設定時間の後遅延回路からの高電位が除去さ
れると、７番ピンの電圧は急激に低減し、６番ピ
ンの電圧よりも低くなる。したがつて、回路IC1
の10番ピンの電圧は高電位に上昇し、抵抗R14、
ツエナーダイオードZD2を通してサイリスタTh1
は点弧し、サイリスタTh2はターンオフされ、主
充電回路は遮断される。それとともに、発光ダイ
オードLEDは、充電の開始後（スタートスイツ
チSWの押下げによる）所定の時間で発光が止ま
るから、不良電池の存在が直ちに報知される。 In addition to the output of the delay circuit, the connection point of resistors R 3 and R 4 that divides the battery output is connected to pin 7 of circuit IC 1 , and the battery voltage detection output is applied to pin 7. has been done. If the battery is defective and the charging voltage does not increase sufficiently,
When the high potential from the delay circuit is removed after the set time, the voltage at pin 7 decreases rapidly and becomes lower than the voltage at pin 6. Therefore, circuit IC 1
The voltage at pin 10 of rises to a high potential, resistor R 14 ,
Thyristor Th 1 through Zener diode ZD 2
fires, thyristor Th 2 is turned off and the main charging circuit is interrupted. At the same time, since the light emitting diode LED stops emitting light for a predetermined time after the start of charging (by pressing down the start switch SW), the existence of a defective battery is immediately notified.
なお、充電作業は、電池を端子Ｔに接続し、ス
タートスイツチSWを押し下げることにより開始
されるが、装置の出力端子Ｔが短絡されていた
り、過負荷が生じたりした場合には、短絡または
過電流が流れてブレーカBRが切断され、出力電
圧が見掛け上上昇して設定電圧値を越えるので、
サイリスタTh1が点弧し主充電回路は遮断され
る。電流が逆接された場合も過電流が流れるた
め、ブレーカは切断され、充電動作は開始できな
い。 Charging is started by connecting the battery to terminal T and pushing down the start switch SW, but if the output terminal T of the device is short-circuited or overloaded, the short-circuit or overload will occur. Current flows and breaker BR is disconnected, and the output voltage apparently increases and exceeds the set voltage value, so
Thyristor Th 1 fires and the main charging circuit is cut off. Even if the current is reversed, an overcurrent will flow, so the breaker will be disconnected and charging will not start.
以上に言及される諸部品はプリント基板（内側
鎖線で略示される）上に配置され、そして基板全
体はプラスチツクケース（外側鎖線で略示され
る）内に納められる。 The components mentioned above are arranged on a printed circuit board (schematically indicated by the inner dashed line), and the entire board is housed in a plastic case (schematically indicated by the outer dashed line).
以上詳しく説明したように、本発明の充電器
は、電池をいかなる状態からでも安全確実に急速
充電することができ、不良電池が存在する場合に
は直ちにこれを検知でき、しかも電池の装置への
異接続があつても十分の保護がなされているか
ら、機械の操作に不慣れのものであつても容易に
取扱えるから実用に供してその利益はすこぶる大
きい。 As explained in detail above, the charger of the present invention can quickly charge a battery safely and reliably in any state, can immediately detect a defective battery if it exists, and can also quickly charge a battery in a battery device. Since sufficient protection is provided even if there is an incorrect connection, even those who are inexperienced in operating machines can easily handle it, so it has great benefits in practical use.
図面は本発明の電池充電器の１具体例の接続回
路図である。
Ｔ……変圧器、D1〜D5……整流器またはダイ
オード、R1〜R8……抵抗、VR……可変抵抗器、
TH……サーミスタ、ZD1，ZD2……ツエナーダ
イオード、Th1，Th2……サイリスタ、LED……
発光ダイオード、BR……ブレーカ、IC1，IC2…
…回路、Ｂ……電池。
The drawing is a connection circuit diagram of a specific example of the battery charger of the present invention. T...Transformer, D1 to D5 ...Rectifier or diode, R1 to R8 ...Resistor, VR...Variable resistor,
TH...Thermistor, ZD 1 , ZD 2 ...Zener diode, Th 1 , Th 2 ...Thyristor, LED...
Light emitting diode, BR...Breaker, IC 1 , IC 2 ...
...Circuit, B...Battery.
Claims (1)
出力と電池接続端子に接続されるブレーカとの間
に直列に接続され、限流抵抗および制御整流器を
含む主充電回路と、該主充電回路と並列に接続さ
れ大抵抗値の限流抵抗を含む細流充電回路と、前
記ブレーカに並列に接続され、電池出力が所定の
設定電圧を越えるとき、出力を発生し、前記主充
電回路の制御整流器をターンオフする回路と、充
電の開始から一定時間を計時し、この一定時間の
経過時に電池が一定の電圧に充電されていないと
き、前記主充電回路の制御整流器をターンオフす
る不良電池検出用の遅延回路とより成る電池急速
充電器。1. A step-down transformer, a rectifier circuit, a main charging circuit connected in series between the output of the rectifier circuit and a breaker connected to the battery connection terminal, and including a current limiting resistor and a control rectifier, and the main charging circuit. a trickle charging circuit that is connected in parallel with the circuit and includes a current limiting resistor with a large resistance value; and a trickle charging circuit that is connected in parallel with the breaker and generates an output when the battery output exceeds a predetermined set voltage and controls the main charging circuit. A circuit for turning off the rectifier, and a circuit for detecting a defective battery that measures a certain period of time from the start of charging and turns off the control rectifier of the main charging circuit if the battery is not charged to a certain voltage after the elapse of this certain period of time. A battery quick charger consisting of a delay circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9385780A JPS5720130A (en) | 1980-07-11 | 1980-07-11 | Battery charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9385780A JPS5720130A (en) | 1980-07-11 | 1980-07-11 | Battery charger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5720130A JPS5720130A (en) | 1982-02-02 |
| JPS638697B2 true JPS638697B2 (en) | 1988-02-24 |
Family
ID=14094089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9385780A Granted JPS5720130A (en) | 1980-07-11 | 1980-07-11 | Battery charger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5720130A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5833938A (en) * | 1981-08-19 | 1983-02-28 | 三洋電機株式会社 | Charger for battery |
| JPS5917827A (en) * | 1982-07-20 | 1984-01-30 | 三洋電機株式会社 | Charger for battery |
| JPS61173917A (en) * | 1985-01-30 | 1986-08-05 | Idemitsu Petrochem Co Ltd | Method and apparatus for preparing biaxially oriented thermoplastic resin film |
| JPS61175020A (en) * | 1985-01-30 | 1986-08-06 | Idemitsu Petrochem Co Ltd | Manufacture of biaxially oriented film of ethylene/vinyl acetate copolymer that is saponified |
| JPH0445405Y2 (en) * | 1985-01-31 | 1992-10-26 | ||
| JPS6268427U (en) * | 1985-10-15 | 1987-04-28 | ||
| JPH0431795Y2 (en) * | 1986-07-15 | 1992-07-30 | ||
| JPS63252720A (en) * | 1987-04-10 | 1988-10-19 | Modern Mach Kk | Forming process for inflation film |
| JP2514899B2 (en) * | 1993-06-22 | 1996-07-10 | 吉野化成株式会社 | A masking film roll body for painting, characterized by using a film whose inner surface is treated with corona discharge |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5363539A (en) * | 1976-11-18 | 1978-06-07 | Takeo Horiuchi | Battery charger of regulated terminal voltage control type |
| JPS53149638A (en) * | 1977-06-01 | 1978-12-27 | Sanyo Electric Co | Charging device for storage battery |
-
1980
- 1980-07-11 JP JP9385780A patent/JPS5720130A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5363539A (en) * | 1976-11-18 | 1978-06-07 | Takeo Horiuchi | Battery charger of regulated terminal voltage control type |
| JPS53149638A (en) * | 1977-06-01 | 1978-12-27 | Sanyo Electric Co | Charging device for storage battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5720130A (en) | 1982-02-02 |
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