CN202197135U

CN202197135U - Intelligent charger capable of conducting automatic power off (APO) after being fully charged

Info

Publication number: CN202197135U
Application number: CN2011203447466U
Authority: CN
Inventors: 张建彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-15
Filing date: 2011-09-15
Publication date: 2012-04-18
Anticipated expiration: 2021-09-15

Abstract

The utility model relates to an intelligent charger capable of conducting automatic power off (APO) after being fully charged, which is applicable to charging for a storage battery of an electric bicycle. The intelligent charger comprises a charging main circuit which consists of a first rectification circuit, a second rectification circuit, a third rectification circuit, an inverter and a current detection and comparison circuit; especially, the intelligent charger further comprises an automatic control circuit which consists of a sampling circuit, a delay circuit, a level conversion circuit, a silicon controlled thyristor circuit and a trigger circuit. The intelligent charger has the beneficial effects of being simple in structure, low in cost and stable and reliable in circuit, and solving the problem that the storage battery is easily overcharged under the unwatched situation.

Description

A kind of electricity back intelligent charger of outage automatically that is full of

Technical field

The utility model relates to a kind of electricity back intelligent charger of outage automatically that is full of, and is applicable to the charge in batteries of electric bicycle.

Background technology

On swallow Zhao evening paper on January 24th, 2011, disclose a kind of " electric bicycle cut off the power supply automatically charger ", above-mentioned charger comprises the charging main circuit, and said charging main circuit comprises first to the 3rd rectification circuit, inverter and current detecting and comparison circuit; The output of said first rectification circuit connects the input of the second and the 3rd rectification circuit respectively through inverter; The positive pole of the output of said second rectification circuit and negative pole connect the positive pole and the negative pole of batteries respectively, and the voltage that the output C of said the 3rd rectification circuit is ordered is+12V; The output head anode of input termination second rectification circuit of said current detecting and comparison circuit, the respective input of one tunnel output termination inverter of said current detecting and comparison circuit; Above-mentioned charger also comprises automatic power-off control circuit.The shortcoming of above-mentioned charger is that the structure of automatic power-off control circuit is complicated.

The utility model content

The utility model technical problem to be solved provides a kind of electricity back intelligent charger of outage automatically that is full of.

The utility model solves the technical scheme that its technical problem adopted:

The utility model comprises the charging main circuit, and said charging main circuit comprises first to the 3rd rectification circuit, inverter and current detecting and comparison circuit; The output of said first rectification circuit connects the input of the second and the 3rd rectification circuit respectively through inverter; The positive pole of the output of said second rectification circuit and negative pole connect the positive pole and the negative pole of batteries respectively, and the voltage that the output C of said the 3rd rectification circuit is ordered is+12V; The output head anode of input termination second rectification circuit of said current detecting and comparison circuit, the respective input of one tunnel output termination inverter of said current detecting and comparison circuit; It is characterized in that also comprising automatic control circuit; Said automatic control circuit is made up of sample circuit, delay circuit, level shifting circuit, ghyristor circuit and circuits for triggering; One tunnel input termination current detecting of said sample circuit and another road output D point of comparison circuit, the output head anode of said second rectification circuit of its another road input termination, i.e. E point; The output of said sample circuit connects the control end of ghyristor circuit successively through delay circuit, level shifting circuit, circuits for triggering, the input termination～220V of said ghyristor circuit, the input A point and the B point of said first rectification circuit of its output termination; The power end of said delay circuit and level shifting circuit connects the output C point of said the 3rd rectification circuit respectively.

The beneficial effect of the utility model be simple in structure, cost is low, circuit is reliable and stable, solved storage battery and under unserviced situation, filled drum easily and fill quick-fried problem.

Description of drawings

Fig. 1 is the theory diagram of the utility model.

Fig. 2 is the circuit theory diagrams of automatic control circuit.

Embodiment

Can be known that by the embodiment shown in Fig. 1-2 it comprises the charging main circuit, said charging main circuit comprises first to the 3rd rectification circuit, inverter and current detecting and comparison circuit; The output of said first rectification circuit connects the input of the second and the 3rd rectification circuit respectively through inverter; The positive pole of the output of said second rectification circuit and negative pole connect the positive pole and the negative pole of batteries respectively, and the voltage that the output C of said the 3rd rectification circuit is ordered is+12V; The output head anode of input termination second rectification circuit of said current detecting and comparison circuit, the respective input of one tunnel output termination inverter of said current detecting and comparison circuit; It is characterized in that also comprising automatic control circuit; Said automatic control circuit is made up of sample circuit, delay circuit, level shifting circuit, ghyristor circuit and circuits for triggering; One tunnel input termination current detecting of said sample circuit and another road output D point of comparison circuit, the output head anode of said second rectification circuit of its another road input termination, i.e. E point; The output of said sample circuit connects the control end of ghyristor circuit successively through delay circuit, level shifting circuit, circuits for triggering, the input termination～220V of said ghyristor circuit, the input A point and the B point of said first rectification circuit of its output termination; The power end of said delay circuit and level shifting circuit connects the output C point of said the 3rd rectification circuit respectively.

Said sample circuit is made up of resistance R 6-R7, controllable silicon T2, voltage stabilizing didoe DW2 and capacitor C 3; Be connected between the output head anode E point and ground of said second rectification circuit after 3 series connection of voltage stabilizing didoe DW2 and capacitor C, said resistance R 6 be connected between the output D point and ground of said current detecting and comparison circuit after resistance R 7 is connected; The control utmost point of said controllable silicon T2 connects the node of voltage stabilizing didoe DW2 and capacitor C 3.

Said delay circuit is made up of the second photoelectrical coupler U3, potentiometer DW1, resistance R 4-R5, transistor Q1, capacitor C 2; The input 1 pin connecting resistance R6 of the second photoelectrical coupler U3 and the node of resistance R 7, its 2 pin ground connection; Be connected between the collector electrode and said C point of transistor Q1 after potentiometer DW1 and resistance R 4 series connection; Resistance R 5 is connected between the emitter and ground of transistor Q1; The base stage of transistor Q1 connects the second photoelectrical coupler U3 output, 3 pin; The collector electrode of transistor Q1 connects output 4 pin of the second photoelectrical coupler U3, and capacitor C 2 is connected between output 3 pin and 4 pin of the second photoelectrical coupler U3.

Said level shifting circuit is made up of integrated package U2 and capacitor C 1; Integrated package U2 input 6 pin connect the collector electrode of transistor Q1, the 1 pin ground connection of integrated package U2, and power end 4 pin of integrated package U2 and 8 pin connect said C point respectively; 2 pin of integrated package U2 are connected with 6 pin, and capacitor C 1 is connected between 5 pin and ground of integrated package U2.

Said circuits for triggering are made up of the first photoelectrical coupler U1, resistance R 3; Input 1 pin of the first photoelectrical coupler U1 connects output 3 pin of integrated package U2, the 2 pin ground connection of the first photoelectrical coupler U1 through resistance R 3.

Said ghyristor circuit is made up of bidirectional triode thyristor T1, resistance R 1-R2, push-button switch AN1; Said bidirectional triode thyristor T1 is serially connected in～live wire of 220V on; Be connected on after resistance R 1, push-button switch AN1 and resistance R 2 are connected successively between the control utmost point and said B point of bidirectional triode thyristor T1, simultaneously push-button switch AN1 is connected between 4 pin and 6 pin of output of the first photoelectrical coupler U1.

The model of the said first photoelectrical coupler U1 is MOC3041, and the second photoelectrical coupler U3 model is ORIET817C, and the model of integrated package U2 is SE555.

The course of work of present embodiment is (referring to Fig. 1,2) as follows:

At first press the button switch AN1;～220V makes bidirectional triode thyristor T1 conducting through R1, AN1, R2; The work of charging main circuit; Accumulators group charging, the 3rd rectification circuit in the charging main circuit provide+voltage (being the C point voltage) of 12V for delay circuit and level shifting circuit, supply its operate as normal; Simultaneously, current detecting and comparison circuit provide a D point voltage to sample circuit, and the D point voltage of this moment is+12V; The output head anode that another road input of sample circuit connects second rectification circuit (is the E point; The E point voltage is+58V); Lumination of light emitting diode in the voltage that the D point voltage provides one+1.2V for the second photoelectrical coupler U3 after R6, R7 dividing potential drop, U3, output 3 pin of U3 and the resistance between 4 pin diminish; Transistor Q1 saturation conduction, capacitor C 2 discharges this moment; The collector electrode of Q2 is in low level; Input 6 pin of the integrated package U2 of level shifting circuit are low level, output 3 pin of U2 be high level (+12V), make the photoelectrical coupler U1 work of winning; Output 4 pin of U1 and the resistance between 6 pin diminish; At this moment～and 4 pin to 6 pin of 220V through R1, U1, R2 keeps bidirectional triode thyristor and works on, and the charging main circuit is also kept and is worked on.

When batteries was full of electricity, the output D point voltage of current detecting and comparison circuit became low level by+12V, and the voltage on the resistance R 7 also is low level; Light-emitting diode in the U3 quits work, and output 4 pin of U3 become big with the resistance between 3 pin, and C order+and 12V voltage charges to capacitor C 2; Charged to about 2 hours, the voltage on the capacitor C 2 rises to 7.8V (through changing the size of RW1, can change the charging interval); This moment, the voltage of input 2 pin of U2 also be 7.8V, and output 3 pin of U2 become low level from+12V, caused first photoelectricity U1 that is coupled not work; It is big that output 6 pin of U1 and the resistance between 4 pin become; Bidirectional triode thyristor T1 turn-offs,, realized under unserviced situation, stopping automatically charging.

In addition; When battery charging surpass+during the limiting voltage of 58V; This voltage gives capacitor C 3 chargings through voltage stabilizing didoe DW2, and when the voltage on the C3 is charged to when making controllable silicon T2 conducting, the second photoelectrical coupler U3 quits work; Thereby the first photoelectrical coupler U1 is also quit work, automatically cut off the charging main circuit～220V and stop charging.

Claims

1. one kind is full of the electricity back intelligent charger of outage automatically, comprises the charging main circuit, and said charging main circuit comprises first to the 3rd rectification circuit, inverter and current detecting and comparison circuit; The output of said first rectification circuit connects the input of the second and the 3rd rectification circuit respectively through inverter; The positive pole of the output of said second rectification circuit and negative pole connect the positive pole and the negative pole of batteries respectively, and the voltage that the output C of said the 3rd rectification circuit is ordered is+12V; The output head anode of input termination second rectification circuit of said current detecting and comparison circuit, the respective input of one tunnel output termination inverter of said current detecting and comparison circuit; It is characterized in that also comprising automatic control circuit; Said automatic control circuit is made up of sample circuit, delay circuit, level shifting circuit, ghyristor circuit and circuits for triggering; One tunnel input termination current detecting of said sample circuit and another road output D point of comparison circuit, the output head anode of said second rectification circuit of its another road input termination, i.e. E point; The output of said sample circuit connects the control end of ghyristor circuit successively through delay circuit, level shifting circuit, circuits for triggering, the input termination～220V of said ghyristor circuit, the input A point and the B point of said first rectification circuit of its output termination; The power end of said delay circuit and level shifting circuit connects the output C point of said the 3rd rectification circuit respectively.

2. a kind of electricity back intelligent charger of outage automatically that is full of according to claim 1 is characterized in that said sample circuit is made up of resistance R 6-R7, controllable silicon T2, voltage stabilizing didoe DW2 and capacitor C 3; Be connected between the output head anode E point and ground of said second rectification circuit after 3 series connection of voltage stabilizing didoe DW2 and capacitor C, said resistance R 6 be connected between the output D point and ground of said current detecting and comparison circuit after resistance R 7 is connected; The control utmost point of said controllable silicon T2 connects the node of voltage stabilizing didoe DW2 and capacitor C 3.

3. a kind of electricity back intelligent charger of outage automatically that is full of according to claim 2 is characterized in that said delay circuit is made up of the second photoelectrical coupler U3, potentiometer DW1, resistance R 4-R5, transistor Q1, capacitor C 2; The input 1 pin connecting resistance R6 of the second photoelectrical coupler U3 and the node of resistance R 7, its 2 pin ground connection; Be connected between the collector electrode and said C point of transistor Q1 after potentiometer DW1 and resistance R 4 series connection; Resistance R 5 is connected between the emitter and ground of transistor Q1; The base stage of transistor Q1 connects the second photoelectrical coupler U3 output, 3 pin; The collector electrode of transistor Q1 connects output 4 pin of the second photoelectrical coupler U3, and capacitor C 2 is connected between output 3 pin and 4 pin of the second photoelectrical coupler U3.

4. a kind of electricity back intelligent charger of outage automatically that is full of according to claim 3 is characterized in that said level shifting circuit is made up of integrated package U2 and capacitor C 1; Integrated package U2 input 6 pin connect the collector electrode of transistor Q1, the 1 pin ground connection of integrated package U2, and power end 4 pin of integrated package U2 and 8 pin connect said C point respectively; 2 pin of integrated package U2 are connected with 6 pin, and capacitor C 1 is connected between 5 pin and ground of integrated package U2.

5. a kind of electricity back intelligent charger of outage automatically that is full of according to claim 4 is characterized in that said circuits for triggering are made up of the first photoelectrical coupler U1, resistance R 3; Input 1 pin of the first photoelectrical coupler U1 connects output 3 pin of integrated package U2, the 2 pin ground connection of the first photoelectrical coupler U1 through resistance R 3.

6. a kind of electricity back intelligent charger of outage automatically that is full of according to claim 5 is characterized in that said ghyristor circuit is made up of bidirectional triode thyristor T1, resistance R 1-R2, push-button switch AN1; Said bidirectional triode thyristor T1 is serially connected in～live wire of 220V on; Be connected on after resistance R 1, push-button switch AN1 and resistance R 2 are connected successively between the control utmost point and said B point of bidirectional triode thyristor T1, simultaneously push-button switch AN1 is connected between 4 pin and 6 pin of output of the first photoelectrical coupler U1.