CN2319926Y

CN2319926Y - Device of prolonging discharge time of accumulator

Info

Publication number: CN2319926Y
Application number: CN 97243329
Authority: CN
Inventors: 宋基来
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-12-29
Filing date: 1997-12-29
Publication date: 1999-05-19
Anticipated expiration: 2007-12-29

Abstract

The utility model relates to a device of prolonging discharge time of an accumulator, which is composed of at least two sets of accumulators with the same capacity, an oscillation control device, a generator, etc., wherein, the oscillation control device comprises a time control circuit and a relay execution control circuit. The oscillation control device controls the two sets of accumulators with the same capacity to discharge to the load and to receive the charge of the generator periodically and alternately, thus, the unidirectional polarization of an accumulator plate caused by the continuous discharge of the accumulator is retarded, and accordingly the discharge time of the accumulator is efficiently prolonged. The device of the utility model is especially suitable for electric vehicles and ships to use, the continuous running ability of the electric vehicles and ships can be enhanced, and the device of prolonging discharge time of an accumulator is beneficial for the development and the popularization of the electric vehicles and ships.

Description

Prolong the device of battery discharging time

The utility model relates to a kind of device that prolongs the battery discharging time, is particularly suitable for electronic car and boat and uses.

With the storage battery is the electronic car and boat of power, because it is easy to operate, maintenance is simple, use cost is low, particularly pollution-free, is subjected to people's attention just day by day.The storage battery of electronic car and boat is standby after once charging with power supply mostly.But because the finite capacity of single storage battery, the discharge time after once charging is also just limited, and therefore, the length of battery discharging time directly affects the ability that continues of electronic car and boat.Because the capacity increase of single storage battery is limited, can occupy too many space and increase the storage battery number, thereby, prolong the battery discharging time, electronic car and boat are applied very important.

The purpose of this utility model provides that a kind of building block is few, circuit is simple, easy to use, the device that prolongs the battery discharging time.

The technical scheme that realizes the utility model purpose is: a kind of device that prolongs the battery discharging time, it is characterized in that, by the equal storage battery of at least two pool-sizes, oscillation control device and 1 generator are formed, oscillation control device is serially connected between two group storage batteries and load and the generator, its oscillation control device comprises the time control circuit that produces one group of symmetrical time control signal and the capacity of controlling two parallel connections is identical and the execution control circuit of the switch element of mutual locking, the storage battery that links to each other with oscillation control device is controlled by it, alternately periodically to load discharge and the charging of accepting generator; Generator is accepted the energy from load, for storage battery provides charging current in turn.

The time control circuit of the oscillation control device of said apparatus is that duty ratio is 1 square-wave oscillator circuit; Carrying out control circuit is relay switching circuit.

Technique effect of the present utility model is: only need be equipped with oscillation control circuit and 1 generator for the storage battery that two pool-sizes equate, get final product the device that the assembly cost utility model prolongs the battery discharging time, building block is few; Only time control circuit and execution control circuit in the oscillation control circuit, circuit is simple; During use, oscillation control device is serially connected between two group storage batteries and load and the generator and gets final product, and is very convenient; Device of the present utility model, oscillation control device wherein is made up of time control circuit and execution control circuit, what time control circuit produced is the signal of one group of symmetry, the switch element capacity of carrying out two parallel connections of control circuit is identical, like this, the storage battery that two pool-sizes are identical is subjected to the control of above-mentioned oscillation control device, can be alternately periodically to load discharge with accept generator charging.Because every group storage battery all is a gap discharge, and in off time, every group storage battery can utilize the depolarising charging principle again, battery pole plates is carried out depolarising to be handled, therefore, device of the present utility model has slowed down the unidirectional polarization of the battery pole plates that causes because of storage battery continuous discharge, thereby has prolonged the discharge time of storage battery effectively.

Embodiment below in conjunction with accompanying drawing provides is further described in detail charging device of the present utility model.

The block diagram that concerns between the critical piece of Fig. 1 for the device of expression the utility model prolongation battery discharging time, dotted line is represented charging, solid line is represented discharge

Fig. 2 is the circuit theory diagrams of Fig. 1

Fig. 3 is a kind of circuit theory diagrams of the oscillation control device of the utility model device, and the dotted line left side is that duty ratio is 1 square-wave oscillator circuit, and the dotted line right side is a relay switching circuit.

Shown in Fig. 1～3, a kind of device that prolongs the battery discharging time, it is characterized in that, the storage battery (1-1) that equates by at least two pool-sizes and (1-2), oscillation control device (2) and 1 generator (3) are formed, oscillation control device (2) is serially connected in two group storage batteries (1-1), (1-2) and between load and the generator (3), its oscillation control device (2) comprises the time control circuit that produces one group of symmetrical time control signal and the capacity of controlling two parallel connections is identical and the execution control circuit of the switch element of mutual locking, the storage battery (1-1) that links to each other with oscillation control device (2) and (1-2) controlled by it is alternately periodically to load discharge with accept the charging of generator (3); Generator (3) is accepted the energy from load, and charging current for storage battery (1-1) and (1-2) is provided in turn.This device realized that storage battery that two pool-sizes equate takes turns intermittent charge and discharge, thereby slowed down the storage battery battery pole plates one-way slabsization that back continuous discharge causes of once charging, thereby effectively prolonged the battery discharging time.

Oscillation control device in the utility model device (2), time control circuit wherein is that duty ratio is 1 square-wave oscillator circuit (seeing Fig. 3 dotted line left side), also can be dual time base circuit or relay time circuit etc., but preferably duty ratio be 1 square-wave oscillator circuit; Execution control circuit wherein is relay switching circuit (seeing Fig. 3 dotted line right side), also can be the pliotron switching circuit, or reverse-blocking tetrode thyristor circuit etc., but relay switching circuit preferably.

A kind of circuit diagram (see figure 3) of the oscillation control device in the device of the present utility model (2) is to be that 1 square-wave oscillator circuit is as time control circuit by duty ratio, relay switching circuit is formed as the execution control circuit, wherein duty ratio is that 1 square-wave oscillator circuit is by 555 time-base integrated circuits, resistance R 3, triode BG2, diode D2, potentiometer W, capacitor C 2 compositions such as grade, 4 pin and 8 pin of 555 time-base integrated circuits connect positive source, 1 pin connects power cathode, 5 pin are by capacitor C1 ground connection, the collector electrode of triode BG2 connects positive source, its emitter is with after potentiometer W connects, by capacitor C2 ground connection, 2 pin and 6 pin are connected on the line between potentiometer W and the capacitor C2,7 pin divide two-way, one the tunnel through diode D2, receive on the emitter and the line between the potentiometer W of triode BG2, another road connects positive source with after the base stage of triode BG2 is connected by resistance R 3,3 pin with carry out control circuit and link to each other; Relay switching circuit is made up of relay J, J1 and J2, triode BG1, diode D1 etc., relay J is connected across on the power positive cathode by the collector and emitter of triode BG1, the base stage of triode BG1 links to each other with 3 pin of 555 time-base integrated circuits by resistance R 2, the coils from parallel connection of coils of diode D1 and relay J, one group of normally opened contact of relay J be connected across on the power positive cathode after the coil of relay J 1 is connected, after another is organized normally-closed contact and relay J 2 is connected, be connected across on the power positive cathode the in parallel and locking mutually of relay J 1 and J2.

The course of work of oscillation control device shown in Figure 3 (2) is as follows: after energized, when if 2 pin of 555 time-base integrated circuits (hereinafter to be referred as 555 circuit) and 6 pin are low level, resistance R 3 provides base current for triode BG2, make its saturation conduction, capacitor C2 is by triode BG2, potentiometer W charging, and the voltage on capacitor C2 is charged to 2/3U _CcThe time, the upset of 555 circuit, i.e. 3 pin output low levels.At this moment capacitor C2 discharges to 7 pin by potentiometer W, diode D2, and triode BG2 ends because of the forward voltage drop of diode D2, and the voltage on capacitor C2 is put into 1/3U _CcThe time, 555 circuit overturn again, 3 pin output high level, thus capacitor C2 is again by triode BG2 and potentiometer W charging.Periodic duty is gone down so periodically.Can regulate the cycle of oscillation of this circuit with potentiometer W, but the time constant of the charging of capacitor C2 and discharge is identical all the time, so the high level of 555 circuit, 3 pin output and low level width equate that all the time promptly keeping duty ratio is 1.

Relay switching circuit is subjected to the control of 555 circuit, 3 pin, and when 3 pin were output as low level, triode BG1 ended, relay J 2 adhesives thereby relay J is failure to actuate.When 3 pin are output as high level, triode BG1 saturation conduction, the relay J adhesive, thus J2 discharges the J1 adhesive.Because the oscillating circuit duty ratio is 1, so the pickup time of relay J 1 and J2 is identical with release time, therefore, storage battery that is attached thereto (1-1) and charging interval (1-2) and discharge time also equate.

Below introduce the contrast test of battery discharging time, the result is as follows:

Selecting 4 voltages for use is 12V, and capacity is the lead acid accumulator of 17Ah, and dividing equally is two groups, and wherein a group storage battery adopts the utility model device, by Fig. 1 and 2 oscillation control device (2) is serially connected between storage battery and load and the generator; Another group storage battery is then directly in parallel, carries out test discharge time respectively.When adopting the utility model device, the work period of time control circuit is 10 minutes, and the electric current of generator (3) is 3A, with the 10A electric current (for example to load, DC motor) discharge, when battery tension was reduced to 11V, be about 440 minutes total discharge time of two storage batterys of actual measurement; The storage battery that another group is directly in parallel equally also discharges to load (for example DC motor) with the 10A electric current, when battery tension is reduced to 11V, surveys its discharge and is about 230 minutes total time.This shows, adopt device of the present utility model to prolong the discharge time of storage battery effectively.

Device of the present utility model is applicable to need be the multiple load of power supply with the storage battery, the DC motor that is particularly useful for electronic car and boat, since device for prolonging of the present utility model the discharge time of storage battery, therefore, improved the ability that continues of electronic car and boat greatly, very useful to applying of electronic car and boat.

Claims

1, a kind of device that prolongs the battery discharging time, it is characterized in that, the storage battery (1-1) that equates by at least two pool-sizes and (1-2), oscillation control device (2) and 1 generator (3) are formed, oscillation control device (2) is serially connected in two group storage batteries (1-1), (1-2) and between load and the generator (3), its oscillation control device (2) comprises the time control circuit that produces one group of symmetrical time control signal and the capacity of controlling two parallel connections is identical and the execution control circuit of the switch element of mutual locking, the storage battery (1-1) that links to each other with oscillation control device (2) and (1-2) controlled by it is alternately periodically to load discharge with accept the charging of generator (3); Generator (3) is accepted the energy from load, and charging current for storage battery (1-1) and (1-2) is provided in turn.

2, device according to claim 1 is characterized in that, the time control circuit in the oscillation control device (2) is that duty ratio is 1 square-wave oscillator circuit; Carrying out control circuit is relay switching circuit.

3, according to claim 1,2 described devices, it is characterized in that, duty ratio is that 1 square-wave oscillator circuit is by 555 time-base integrated circuits, resistance R 3, triode BG2, diode D2, potentiometer W, compositions such as capacitor C2,4 pin and 8 pin of 555 time-base integrated circuits connect positive source, 1 pin connects power cathode, 5 pin are by capacitor C1 ground connection, the collector electrode of triode BG2 connects positive source, its emitter is with after potentiometer W connects, by capacitor C2 ground connection, 2 pin and 6 pin are connected on the line between potentiometer W and the capacitor C2, and 7 pin divide two-way, and one the tunnel through diode D2, receive on the emitter and the line between the potentiometer W of triode BG2, another road connects positive source with after the base stage of triode BG2 is connected by resistance R 3,3 pin with carry out control circuit and link to each other.

4, according to claim 1,2 described devices, it is characterized in that, relay switching circuit is by relay J, J1 and J2, triode BG1, compositions such as diode D1, relay J is connected across on the power positive cathode by the collector and emitter of triode BG1, the base stage of triode BG1 links to each other with 3 pin of 555 time-base integrated circuits by resistance R 2, the coils from parallel connection of coils of diode D1 and relay J, one group of normally opened contact of relay J be connected across on the power positive cathode after the coil of relay J 1 is connected, after another is organized normally-closed contact and relay J 2 is connected, be connected across on the power positive cathode the in parallel and locking mutually of relay J 1 and J2.