CN1065561A - 自动截止充电电路及其应用 - Google Patents

自动截止充电电路及其应用 Download PDF

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CN1065561A
CN1065561A CN92102232A CN92102232A CN1065561A CN 1065561 A CN1065561 A CN 1065561A CN 92102232 A CN92102232 A CN 92102232A CN 92102232 A CN92102232 A CN 92102232A CN 1065561 A CN1065561 A CN 1065561A
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controllable silicon
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CN1037137C (zh
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杨泰和
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Transmitters (AREA)
  • Cookers (AREA)
  • Sink And Installation For Waste Water (AREA)
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Abstract

一种以暂态保持电路及可充电蓄电池的温控开 关为运行条件而构成的电路，以在电池充电饱和时能 自动切换为小电流保持充电为特征，进一步特征是， 具有回流二极管以构成紧急自动供电电路。

Description

本发明涉及一种以暂态保持电路及可充电蓄电池的温控开关为运作条件而构成的电路。
众所周知，传统自动截止充电电路依靠电子元件群构成的电压或电流检知装置，对设有温控开关的蓄电池充电，并在可充电蓄电池饱和或过热时，使充电器电流转变成约为蓄电池额定0.1C（额定AH的10%电流），以作保持性充电，传统方式电路复杂、元件多、制作及材料成本皆高。
本发明的目的在于提供以暂态保持电路及可充电蓄电池自温控开关的动作状态为参考条件的低成本自动截止充电电路，该电路可进一步具有回流二极管以构成紧急自动供电电路。
本发明是这样实现的：
此项以暂态保持电路及可充电蓄电池的温控开关为运作条件而构成的电路，主要包括：
-电源，它是纯直流、半波直流、全波直流、间歇脉动直流或有涟波直流电源;
-可充电电池，内设常闭温控开关;
-暂态保持电路，接受温控电路的操控，当可充电池温升过高，温控开关跳脱断路时，能借助旁路分流电路的限制，对可充电电池继续保持一较小的补充充电（Topping  Charge）电流，直到电源关闭或电池取走，回路中断而还原。
下面依附图所示，详细说明本发明的实施例。
图1所示为由暂态保持电路及可充电电池的温控开关构成的自动截止充电电路之一例。
图2为图1所示电路加设回流二极管FD1，以进一步具有紧急自动供电功能的电路实施例。
图1所示为由暂态保持电路及可充电电池的温控开关构成的自动截止充电电路的实施例，主要包括：
一组可充电蓄电池B1以及一组设置于可充电蓄电池B1上的常闭温控开关TS1串联后，再与一可控硅SCR1呈顺向串联;
上述电路进一步可配置限流电阻R1与充电显示用LED1，两者并联后再串联短路保护元件F1，并且与可充电蓄电池B1及其常闭接点TS1及可控硅SCR1串联后，接到充电的直流电源;前述限流电阻R1及充电显示LED1及保护元件F1亦可由一灯丝型灯泡L1所取代;
一组触发电容C1，其接脚的一端顺向联结于可充电蓄电池B1的一个电极与常闭温控开关TS1的共同联结点X，接脚另一端接到可控硅SCR1的触发栅极G;
分流电阻R11、显示用LED11及LED11所串联的限流电阻R12构成旁路分流元件Z1，其阻抗值为能使可控硅SCR1关闭后流经其中的电流值为对电池作补充充电（Topping Charge）的电流值;
放电二极管CR1并联于可控硅SCR1的阴极K及栅极G间，其极性为能使电容器放电时的放电电流流经此放电二极管CR1，亦即旁路分流元件Z1及此二极管CR1构成放电电路。
图1所述电路的动作过程如下：
送电时，因电容C1的瞬间充电效应，可控硅SCR1被触发导通，而以充电电流对电池B1充电，当电池B1接近饱和而电池B1温度升高时，常闭温控开关TS1断路，使可控硅SCR1切断，此时充电电流受旁路分流元件Z1的限制而使电池呈补充充电的小电流充电状态，此时触发电容C1的电压值与旁路分流元件Z1端压相同;
当热动开关复归时，电容电位不变，故可控硅SCR1维持断路的状态，当充电完成，取下电池B1时，触发电容C1将经旁路分流元件Z1及放电二极管CR1放电，使电路呈待触发的预备状态。
此项电路进一步的特征是加设回流二极管FD1，当电源中断时，使电瓶能经回流二极管对原直流电源的正负输出端所承载的负载供电。
图2为图1所示电路加设回流二极管FD1，以进一步具有紧急自动供电功能的电路例，主要包括：
回流二极管FD1逆向并联于蓄电池B1负端及常闭温控开关TS1的共同联结点X与直流电源负端之间;
负载并联于蓄电池正端与电源负端之间，正常时由负载驱动，电流中断时改由回流二极管FD1构成回路;
安定电容C2与负载并联，以安定切换过程，可视需要选择其容量值或省略不用。
此项设计为揭示一种以暂态保持电路及可充电蓄电池的温控开关为运作条件而构成的自动截止充电电路，特征是在电池充电饱和时能自动转换为小电流保持充电，进一步具有回流二极管，以构成紧急自动供电电路。

Claims (2)

1、一种自动截止充电电路，其特征在于，它以暂态保持电路及可充电蓄电池自温控开关的动作状态为参考条件，可进一步具有回流二极管以构成紧急自动供电电路，包括：
一组可充电蓄电池B1以及一组设置于可充电蓄电池B1上的常闭温控开关TS1在串联后再与一可控硅SCR1呈顺串联；
限流电阻R1与充电显示用LED1并联后再串联短路保护元件F1，以及与充电蓄电池B1及其常闭接点TS1及可控硅SCR1串联后，连到充电的直流电源；前述限流电阻R1及充电显示LED1及保护元件F1亦可由一灯丝型灯泡L1所取代；
一组触发电容C1，其接脚的一端顺向联结于可充电蓄电池B1的一个电极与其上常闭温控开关TS1的共同联结点X，接脚另一端连到可控硅SCR1的触发栅极G；
分流电阻R11及显示用LED11及LED11所串联的限流电阻R12构成旁路分流元件Z1，其阻抗值为能使可控硅SCR1关闭后流经其中的电流值为供电池补充充电的电流值；
一放电二极管CR1并联于可控硅SCR1的阴极K及栅极G之间，其极性为能使电容器放电时的放电电流流经此放电二极管CR1，亦即旁路分流元件Z1及此二极管CR1构成放电电路；其动作过程为：
送电时，因电容C1的瞬间充电效应，可控硅SCR1被触发导通，而以充电电流对电池B1充电，当电池B1接近饱和而电池B1温度升高时，常闭温控开关TS1断路，使可控硅SCR1切断，此时充电电流受旁路分流元件Z1的限制而使电池呈补充充电的小电流充电状态，此时触发电容C1的电压值与旁路分流元件Z1端压相同；
当热动开关复归时，电容电位不变，故可控硅SCR1维持断路状态，当充电完成，取下电池B1时，触发电容C1将经由旁路分流元件Z1及放电二极管CR1放电，使电路呈待触发的预备状态。
2、如权利要求1所述的自动截止充电电路，其特征在于，它加设回流二极管FD1，以在电源中断时，使电瓶能经回流二极管对原直流电源的正负输出端所承载的负载供电，具有紧急自动供电功能，该加设电路中：
-回流二极管FD1逆向并联于蓄电池B1负端及常闭温控开关TS1的共同联结点X与直流电源负端之间;
-负载并联于蓄电池正端与电源负端，正常时由负载驱动，电流中断时改由回流二极管FD1构成回路;
-安定电容C2与负载并联以安定切换过程，可视需要选择其容量值或省略不用。
CN92102232A 1991-04-05 1992-04-04 自动截止充电电路 Expired - Fee Related CN1037137C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9107105A GB2254498A (en) 1991-04-05 1991-04-05 Battery charging circuit with temperature-responsive cut-out
GB9107105.0 1991-04-05

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CN1065561A true CN1065561A (zh) 1992-10-21
CN1037137C CN1037137C (zh) 1998-01-21

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US (1) US5247238A (zh)
EP (1) EP0507568B1 (zh)
CN (1) CN1037137C (zh)
AT (1) ATE175297T1 (zh)
DE (1) DE69228018T2 (zh)
ES (1) ES2125247T3 (zh)
GB (1) GB2254498A (zh)

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ATE175297T1 (de) 1999-01-15
EP0507568B1 (en) 1998-12-30
DE69228018T2 (de) 1999-06-10
US5247238A (en) 1993-09-21
GB2254498A (en) 1992-10-07
DE69228018D1 (de) 1999-02-11
ES2125247T3 (es) 1999-03-01
CN1037137C (zh) 1998-01-21
EP0507568A3 (en) 1993-06-16
GB9107105D0 (en) 1991-05-22
EP0507568A2 (en) 1992-10-07

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