CN102148523B - Energy-saving type charge and discharge control system of storage battery - Google Patents
Energy-saving type charge and discharge control system of storage battery Download PDFInfo
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Abstract
The invention relates to an energy-saving type charge and discharge control system of a storage battery, belonging to the field of electrical technology. The control system comprises a main control module, a forced charge module and a unit charge and discharge module, wherein the output end of the forced charge module is respectively connected with a direct current power supply and the storage battery; the input end of the forced charge module is connected with the main control module to receive control signals; the output end of the unit charge and discharge module is connected with a storage battery unit; and the control end of the unit charge and discharge module is connected with the output control end of the main control module and outputs control instructions. According to the invention, the fact that a set of charged batteries can discharge to charge a battery required to be charged through three work modes, namely a forced storage battery charge mode, a storage battery discharge mode and a storage battery charge mode, thereby avoiding the energy loss of the storage battery caused by discharge through resistors.
Description
Technical field
What the present invention relates to is a kind of device of technical field of electricity, specifically a kind of energy-saving type charge.
Background technology
Lead-acid battery factory need to be to its technical process that discharges and recharges, the quality requirement of guarantee product before battery dispatches from the factory.The method that present storage battery producer generally adopts is with the power rectifier charger AC input of buying on the market, DC output, give the charge in batteries of multi-section serial once, discharge once, recharge once, discharge once again the charging method impedance component, consume energy very large, cause insignificant energy waste.In the process of discharge, if adopt feedback grid, then relevant equipment cost is very high, and is also inapplicable for medium-sized and small enterprises.Therefore, for this problem, the accumulator charging/discharging system that the present invention relates at first carries out forced charge to a batteries, then by this batteries discharge, simultaneously to other battery chargings.Former storage battery is finished after the discharge, and other are finished charging accumulator and discharge conversely, simultaneously to the charge in batteries of former discharge, undercharge can supply electric energy by charger, and so forth, energy resource consumption is very little.Thereby reach energy-conservation effect.
Find through the literature search to prior art, China Patent Publication No. 200320126884.2 has been put down in writing a kind of " control system of accumulator cell charging and discharging controller and this controller of use ", when being normal in order to the capacity at storage battery, the control storage battery is to the control device of gauge load power supply; Be connected in control device, in order to the electrical magnitude of physical quantity of real-time detection storage battery.But this patent is not mentioned about the control method that discharges and recharges operation and principle large batch of, that be used for lead-acid battery factory battery production.
Chinese patent application numbers 96107277.6 has been put down in writing a kind of " charge-discharge control circuit ", comprises buffer register circuit and the voltage detecting circuit of power supply, voltage, and a voltage detecting circuit signal of input is also exported a signal and is used for control and discharges and recharges.It is still different that this patent and the control that discharges and recharges operation large batch of, that be used for lead-acid battery factory battery production require, and the method for employing can not meet the demands.
Paper " about the research of sealed lead acid storage battery charge-discharge circuit " the 1st phase of the 27th volume on January 25th, 2010; the communication power supply technology; author: Xu Xiaodan; Bai Zhifeng has introduced a kind of charge-discharge protection circuit that is applied to wireless acquisition terminal backup seal lead acid accumulator; this patent lays particular emphasis on the method for designing research of protective circuit, does not describe about the design of circuit system method of many groups of series connection accumulator cell charging and dischargings.
Summary of the invention
The present invention is directed to the prior art above shortcomings, a kind of energy-saving type charge is provided, discharged for the battery that needs in addition to charge by one group by charged battery, the energy loss of having avoided the past storage battery to produce by conductive discharge.
The present invention is achieved by the following technical solutions, the present invention includes: main control module, forced charge module, unit charge-discharge modules, wherein: the output of forced charge module is connected with batteries with DC power supply respectively, the input of the forced charge module reception control signal that is connected with main control module, the output of unit charge-discharge modules is connected with secondary battery unit and control end is connected with the output control terminal of main control module and export control command.
Described main control module is controlled a plurality of unit charge-discharge modules two or more batteries is discharged and recharged; This main control module comprises: the input circuit control unit, the power tube switch control unit, the cell voltage signal input unit, wherein: the input circuit unit of input circuit control unit control forced charge module, thereby the DC power supply of control forced charge module and the folding of batteries, reach the purpose of forced charge, the access switching unit of power tube switch control unit charge-discharge modules, reach the purpose of the charge and discharge mode between the given batteries, it is charge mode or discharge mode that the cell voltage signal input unit decides the operating state of the batteries at this element place according to the secondary battery unit voltage after processing.
Described input circuit control unit outputting standard Transistor-Transistor Logic level is also controlled diverter switch input circuit unit.
Described power tube switch control unit outputting standard Transistor-Transistor Logic level is as switching signal and control the direction that discharges and recharges of two group storage battery unit, the output of one group storage battery unit is connected to the input of BOOST power supply, and the output of BOOST power supply is connected to another group storage battery unit it is charged; The batteries cell discharge that perhaps allows script charge, the originally secondary battery unit of discharge charging.
Described cell voltage signal input unit feeds back to processor with the handled secondary battery unit voltage in voltage signal acquisition unit as 0 and 1 digital quantity, as the sign of overvoltage and under voltage degree.
Described forced charge module comprises: DC power supply, diverter switch input circuit unit, diverter switch output loop unit, wherein: diverter switch input circuit unit links to each other with main control module and receives control command, realize the opening and closing movement of output loop unit, output loop unit output control command is to DC power supply, the connected sum of realizing batteries turn-offs, when DC power supply and batteries connection, batteries is in by force charge mode, when DC power supply and batteries shutoff, batteries is in non-by force charge mode.
Described DC power supply comprises: Voltage-output contact and Voltage Reference contact, wherein: the Voltage-output contact is connected with diverter switch output loop one end, and the Voltage Reference contact is connected with the zero potential of system.
Described diverter switch input circuit unit comprises: input circuit drive circuit and coil, wherein: the input circuit control unit of main control module outputs control signals to the input circuit drive circuit, the input circuit drive circuit is according to the control signal generation current and export coil to generation magnetic field, thereby realizes the control to diverter switch output loop unit.
Described diverter switch output loop unit comprises: input contact, loop, loop output contact and disconnecting link, wherein: a terminal of disconnecting link links to each other with input contact, loop, another terminal links to each other with the loop output point, input contact, loop links to each other with the Voltage-output contact of DC power supply, the loop output contact links to each other with the positive pole of batteries, when the coil of input circuit unit has electric current to pass through and produces magnetic field, disconnecting link with output loop under the effect of electromagnetic force is closed, this moment, input contact and the output contact of output loop unit linked, the Voltage-output contact of DC power supply links to each other with the positive pole of batteries like this, the Voltage Reference contact of DC power supply links to each other with the negative pole of batteries, and DC power supply is charged by force to this batteries.
Described unit charge-discharge modules comprises: charging voltage switching power supply, access switching unit and voltage signal acquisition processing unit, wherein: the charging voltage Switching Power Supply promotes the charging voltage value of batteries and links to each other with access switching unit, realize the charge and discharge mode between the different batteries group, stipulate that namely a group storage battery group is in charge mode, another group storage battery group is in discharge mode, and the voltage signal acquisition processing unit gathers magnitude of voltage to determine the charging and discharging state of batteries.
Native system has three kinds of mode of operations: batteries is charged by force, batteries is discharged, battery charging, wherein: batteries is charged by force and is referred to that main control module is to a batteries forced charge, and detect in real time charged state, until finish charging work.Finish after the charging of a batteries, switch to the batteries discharge mode by main control module, finished the secondary battery unit of charging by the secondary battery unit charging of charge-discharge modules to another group, the charge status of simultaneous real-time monitoring two group storage batteries is until one of them batteries is finished discharge or another batteries is finished charging.If after one of them batteries discharge was finished, another batteries was not still finished charging, main control module switches to the forced charge pattern, until the uncharged battery charging of finishing is complete.Main control module switches to the battery charging pattern afterwards, diverter switch by charge-discharge modules, to just now finish the again discharge of batteries of charging to another battery charging, main control module Real Time Monitoring charge status, so repeated multiple times, to detect the charging and discharging capabilities of batteries.
Description of drawings
Fig. 1 is system configuration schematic diagram of the present invention;
Among the figure: the 1-main control module; 2-forced charge module; The 3-charge-discharge modules.
Fig. 2 is the batteries schematic diagram.
Fig. 3 is the secondary battery unit schematic diagram.
Fig. 4 is embodiment charge-discharge modules principle schematic.
Fig. 5 is embodiment charging voltage Switching Power Supply principle schematic.
Fig. 6 is embodiment access switching unit principle schematic.
Fig. 7 is embodiment accumulator cell charging and discharging voltage signal acquisition unit principle schematic.
Embodiment
The below elaborates to embodiments of the invention, and the present embodiment is implemented under take technical solution of the present invention as prerequisite, provided detailed execution mode and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
As shown in Figure 1, the present embodiment comprises: main control module 1, forced charge module 2, unit charge-discharge modules 3, wherein: the diverter switch output loop unit of forced charge module 2 is connected DC power supply with batteries, the input circuit end of forced charge module 2 is connected with main control module 1 and controlled by it, the power tube switch control unit 11 of unit charge-discharge modules 3 is connected with secondary battery unit, the output control terminal of main control module 1 is connected with the power tube switch control unit 11 of unit charge-discharge modules 3, and another group output control terminal of main control module 1 links to each other with the input circuit of forced charge module 2.
Described forced charge module 2 is subjected to main control module 1 control, and two or more sets storage batterys are finished forced charge; This forced charge module 2 comprises: DC power supply 4, diverter switch input circuit unit 5, diverter switch output loop unit 6, wherein: diverter switch input circuit unit 5 links to each other with main control module 1 and receives control command, realize the opening and closing movement of output loop unit, output loop unit 6 output control commands are to DC power supply 4, the connected sum of realizing batteries turn-offs, when DC power supply 4 and batteries connection, batteries is in by force charge mode, when DC power supply 4 and batteries shutoff, batteries is in non-by force charge mode.
Described DC power supply 4 comprises: Voltage-output contact and Voltage Reference contact, wherein: the Voltage-output contact is connected with diverter switch output loop 6 one ends, and the Voltage Reference contact is connected with the zero potential of system.
Described diverter switch input circuit unit 5 comprises: input circuit drive circuit and coil 13, wherein: the input circuit control unit 10 of main control module 1 outputs control signals to the input circuit drive circuit, the input circuit drive circuit is according to the control signal generation current and export coil 13 to generation magnetic field, thereby realizes the control to diverter switch output loop unit 6.
Described diverter switch output loop unit 6 comprises: input contact, loop, loop output contact and disconnecting link 14, wherein: a terminal of disconnecting link links to each other with input contact, loop, another terminal links to each other with the loop output point, input contact, loop links to each other with the Voltage-output contact of DC power supply 4, the loop output contact links to each other with the positive pole of batteries, when the coil of input circuit unit 5 has electric current to pass through and produces magnetic field, disconnecting link with output loop under the effect of electromagnetic force is closed, input contact and the output contact of output loop unit 6 link at this moment, the Voltage-output contact of DC power supply 4 links to each other with the positive pole of batteries like this, the Voltage Reference contact of DC power supply 4 links to each other with the negative pole of batteries, and DC power supply 4 is charged by force to this batteries.
Described unit charge-discharge modules 3 is as the Executive Module that discharges and recharges of two or more batteries, finishes charging, discharges, discharges and recharges path and switch and the condition monitoring such as discharge and recharge; This unit charge-discharge modules 3 comprises: charging voltage switching power supply 7, access switching unit 8, voltage signal acquisition processing unit 9, wherein: charging voltage Switching Power Supply 7 rises to the magnitude of voltage of a group storage battery and satisfies the desired charging voltage value of another group storage battery, the charge and discharge mode that access switching unit 8 is used between the given different batteries group, stipulate that namely a group storage battery group is in charge mode, another group storage battery group is in discharge mode, voltage signal acquisition processing unit 9 is used for gathering the magnitude of voltage of different batteries unit, thereby determines the charging and discharging state of batteries.
Described charging voltage switching power supply 7 comprises: the first electrochemical capacitor 15, the second electrochemical capacitor 16, the 3rd electrochemical capacitor 17 the 4th electrochemical capacitor 18, the first decoupling capacitor 19, the first resistance 20, the second resistance 21, the first voltage adjuster 22, the first inductance 23 second decoupling capacitors 24, the 3rd resistance 25, the 4th resistance 26, the 5th voltage stabilizing didoe 27, the one PNP triode 28, the 5th MOSFET29, the 5th rectifier diode 30, the 5th electrochemical capacitor 31, the 6th electrochemical capacitor 32, the 7th electrochemical capacitor 33, the 8th electrochemical capacitor 34, the 3rd decoupling capacitor 35, the 5th resistance 36 and the 6th resistance 37, wherein: the first electrochemical capacitor 15, the second electrochemical capacitor 16, the 3rd electrochemical capacitor 17, the positive pole of the 4th electrochemical capacitor 18 links to each other with the VCC pin of the first voltage adjuster 22 with external input terminals DCDC_IN, their minus earth, one end of the first decoupling capacitor 19 links to each other with the VCC pin of the first voltage adjuster 22, one end ground connection, one end of the first resistance 20 links to each other with external input terminals DCDC_IN, one end links to each other with the IPKS pin of the first voltage adjuster 22, the two ends of the second resistance 21 link to each other with the two ends of the first resistance 20 respectively, one end of the second electric capacity 24 and the first voltage adjuster 22 the TC pin link to each other, other end ground connection, the TC pin of the first voltage adjuster 22 is as external input signal DCDC_EN, one end of the 3rd resistance 25 links to each other with the SE pin of the first voltage adjuster 22, an other end ground connection, one end of the 4th resistance 26 links to each other with the SE pin of the first voltage adjuster 22, an other end ground connection, the A end of the 5th voltage stabilizing didoe 27 links to each other with the SE pin of the first voltage adjuster 22, the collector electrode of K termination the one PNP triode 28, the collector electrode of the one PNP triode 28 connects the gate pole of the 5th MOSFET pipe 29, grounded emitter, base stage connects the SE pin of the first voltage adjuster 22, the SC termination DCDC_IN of the first voltage adjuster 22, the gate pole of the 5th MOSFET pipe 29 connects the collector electrode of a PNP triode 28, drain electrode connects an end of the first inductance 23, source ground, the IPKS pin of one termination, first voltage adjuster 22 of the first inductance 23, two inputs of one termination the 5th rectifier diode 30, the drain electrode of two input termination the 5th MOSFET pipes 29 of the 5th rectifier diode 30, the outside output DCDC_OUT of output termination, the 5th electrochemical capacitor 31, the 6th electrochemical capacitor 32, the 7th electrochemical capacitor 33, the positive pole of the 8th electrochemical capacitor 34 meets DCDC_OUT, minus earth, one termination DCDC_OUT of the 3rd decoupling capacitor 35, one end ground connection, one termination DCDC_OUT of the 5th resistance 36, the FB pin of one termination the first voltage adjuster 22, one end of one termination the 5th resistance 36 of the 6th resistance 37, one end ground connection
Described access switching unit 8 comprises: the 6th MOSFET pipe 38, the 7th MOSFET pipe 39, the 7th resistance 40, the 8th resistance 41, the 9th resistance 42, the tenth resistance 43, first with the door 44, second with the door 45, the first schmitt inverter 46, the 3rd with the door 47, the 4th with the door 48, the 11 resistance 49, the 12 resistance 50, the first photoelectrical coupler 51, the second photoelectrical coupler 52, the 13 resistance 53 and the 14 resistance 54, wherein: the drain electrode of the 6th MOSFET pipe 38 meets external input terminals CHARGEEN_LEFT, source ground, gate pole connects the output of the 7th resistance 40, the gate pole of output termination the 6th MOSFET pipe 38 of the 7th resistance 40, the output of input termination first and door 44, the output of input termination the 7th resistance 40 of the 8th resistance 41, output head grounding, first with the input of door 44 output termination the 7th resistance 40, first input end connects the output of the first schmitt inverter 46, the second input connect four with door 48 input, the input termination the 4th of the first schmitt inverter 46 and the output of door 48, the first input end of input termination second and door 45, power supply termination VCC, earth terminal ground connection, the 4th with the input of door output termination the first schmitt inverter 46 of 48, first input end connects the collector electrode of the first photoelectrical coupler 51, the input collector electrode of the second input termination the second photoelectrical coupler 52, the input termination VCC of the 11 resistance 49, the collector electrode of output termination the first photoelectrical coupler 51, the collector electrode of the first photoelectrical coupler 51 connect the 4th with door 48 input, grounded emitter, the output of A termination the 13 resistance 53 of light-emitting diode, K termination external input signal Port_one, the input termination 5V-S of the 13 resistance 53, the A end of output sending and receiving optical diode, the drain electrode of the 7th MOSFET pipe 39 meets external input terminals CHARGEEN_RIGHT, source ground, gate pole connects the output of the 9th resistance 42, the gate pole of output termination the 7th MOSFET pipe 39 of the 9th resistance 42, the output of input termination second and door 45, the output of input termination the 9th resistance 42 of the tenth resistance 43, output head grounding, second with the input of door 45 output termination the 9th resistance 42, first input end connects the output of the first schmitt inverter 46, the second input connect the 4th with door the second input of 48 and the collector electrode of the second photoelectrical coupler 52, the 3rd with door two input end groundings of 47, output is unsettled, the input termination VCC of the 12 resistance 50, the collector electrode of output termination the second photoelectrical coupler 52, the collector electrode of the second photoelectrical coupler 52 connect the 4th with door the second input of 48, grounded emitter, the output of A termination the 14 resistance 54 of light-emitting diode, K termination external input signal Port_two, the input termination 5V-S of the 14 resistance 54, the A end of output sending and receiving optical diode.
Described voltage signal acquisition processing unit 9 comprises: the 15 resistance 55, the 16 resistance 56, the 4th decoupling capacitor 57, the 5th decoupling capacitor 58, the 17 resistance 59, the 18 resistance 60, the first operational amplifier 61, the second operational amplifier 62, the first analog switch 63, the 19 resistance 64, the 20 resistance 65, the 21 resistance 67, the 6th decoupling capacitor 66, the 22 resistance 68, the 23 resistance 69, the 24 resistance 71, the 7th decoupling capacitor 70, the 6th voltage stabilizing didoe 72. the 7th voltage stabilizing didoe 73, the first voltage comparator 74, second voltage comparator 75, the 25 resistance 76, the 26 resistance 78, the 3rd photoelectrical coupler 77, the 4th photoelectrical coupler 79, the 27 resistance 80 and the 28 resistance 81, wherein: the input of the 15 resistance 55 links to each other with external signal BATTERY_RIGHT, the positive input terminal of output termination the first operational amplifier 61, input termination first operational amplifier 61 of the 4th decoupling capacitor 57 positive input terminal, output head grounding, the positive input terminal of input termination first operational amplifier 61 of the 17 resistance 59, output head grounding, the output of positive input termination the 15 resistance 55 of the first operational amplifier 61, the CH0 pin of negative input termination the first analog switch 63, the CH0 pin of output termination the first analog switch 63, power supply termination VCC, earth terminal ground connection, the input of the 16 resistance 56 links to each other with external signal BATTERY_LEFT, the positive input terminal of output termination the second operational amplifier 62, input termination second operational amplifier 62 of the 5th decoupling capacitor 58 positive input terminal, output head grounding, the positive input terminal of input termination second operational amplifier 62 of the 18 resistance 60, output head grounding, the output of positive input termination the 16 resistance 56 of the second operational amplifier 62, the CH1 pin of negative input termination the first analog switch 63, the CH1 pin of output termination the first analog switch 63, power supply termination VCC, earth terminal ground connection, the VCC pin of the first analog switch 63 meets VCC, the CH0 pin connects the output of the first operational amplifier 61, the CH1 pin connects the output of the second operational amplifier 62, the SELECT pin connects external input signal, the COM pin connects negative input end and second positive input terminal than voltage comparator 75 of the first voltage comparator 74, INH and GND pin ground connection, and the NC pin is unsettled, the input termination VCC of the 19 resistance 64, the positive input terminal of output termination the first voltage comparator 74, the positive input terminal of input termination first voltage comparator 74 of the 20 resistance 65, the input of output termination the 21 resistance 67, the output of input termination the 20 resistance 65 of the 21 resistance 67 and the Voltage Reference end of the 6th voltage stabilizing didoe 72, output head grounding, the input of input termination the 21 resistance 67 of the 6th decoupling capacitor 66, the output of output termination the 21 resistance 67, the positive input terminal of output termination first voltage comparator 74 of the 6th voltage stabilizing didoe 72, input end grounding, the output of positive input termination the 19 resistance 64 of the first voltage comparator 74, the COM pin of negative input termination the first analog switch 63, the K utmost point of the light-emitting diode of output termination the 3rd photoelectrical coupler 77, the power supply termination power, earth terminal ground connection, the input termination VCC of the 25 resistance 76, the A utmost point of the light-emitting diode of output termination the 3rd photoelectrical coupler 77, the collector electrode of the 3rd photoelectrical coupler 77 connects the output of the 27 resistance 80, simultaneously as external output port Port_three, grounded emitter, the input termination 5V-S of the 27 resistance 80, output connects the collector electrode of the 3rd photoelectrical coupler 77, the input termination VCC of the 22 resistance 68, the negative input end of output termination second voltage comparator 75, the negative input end of the input termination second voltage comparator 75 of the 23 resistance 69, the input of output termination the 24 resistance 69, the output of input termination the 23 resistance 68 of the 24 resistance 69 and the Voltage Reference end of the 7th voltage stabilizing didoe 73, output head grounding, the input of input termination the 24 resistance 71 of the 7th decoupling capacitor 70, the output of output termination the 24 electricity 71, the negative input end of the output termination second voltage comparator 75 of the 3rd voltage stabilizing didoe 73, input end grounding, the output of negative input termination the 22 resistance 68 of second voltage comparator 75, the COM pin of positive input termination the first analog switch 63, the K utmost point of the light-emitting diode of output termination the 4th photoelectrical coupler 79, power supply termination power, earth terminal ground connection, the input termination VCC of the 26 resistance 78, the A utmost point of the light-emitting diode of output termination the 4th photoelectrical coupler 79, the collector electrode of the 4th photoelectrical coupler 79 connects the output of the 28 resistance 81, simultaneously as external output port Port_four, grounded emitter, the input termination 5V-S of the 28 resistance 81, output connects the collector electrode of the 4th photoelectrical coupler 79.
3 pairs of two or more batteries of described main control module 1 control a plurality of unit charge-discharge modules discharge and recharge; This main control module 1 comprises: input circuit control unit 10, power tube switch control unit 11, cell voltage signal input unit 12, wherein: the input circuit unit of input circuit control unit 10 control forced charge modules 2, thereby the DC power supply 4 of control forced charge module 2 and the folding of batteries, reach the purpose of forced charge, the access switching unit 8 of power tube switch control unit 11 charge-discharge modules 3, reach the purpose of the charge and discharge mode between the given batteries, it is charge mode or discharge mode that cell voltage signal input unit 12 decides the operating state of the batteries at this element place according to the secondary battery unit voltage after processing.
Described input circuit control unit 10 outputting standard Transistor-Transistor Logic levels are also controlled diverter switch input circuit unit 5.
Described power tube switch control unit 11 outputting standard Transistor-Transistor Logic levels are as switching signal and control the direction that discharges and recharges of two group storage battery unit, the output of one group storage battery unit can be connected to the input of BOOST power supply, and the output of BOOST power supply be connected to another group storage battery unit it is charged; The batteries cell discharge that also can allow script charge, the originally secondary battery unit of discharge charging.
Described cell voltage signal input unit 12 feeds back to processor with voltage signal acquisition unit 9 handled secondary battery unit voltages as 0 and 1 digital quantity.These two pins indicate overvoltage and the under voltage degree of two secondary battery units in the current charge and discharge process.
The present embodiment carries out work by following three kinds of modes:
A) batteries charge mode by force:
Described forced charge module is controlled by main control module, and two or more sets storage batterys are finished forced charge; Comprise: DC power supply, diverter switch input circuit unit, diverter switch output loop unit, wherein: diverter switch input circuit unit is controlled by main control module, affect the opening and closing movement of output loop unit, the connected sum of output loop unit controls DC power supply and batteries turn-offs, when DC power supply and batteries connection, batteries is in by force charge mode, and when DC power supply and batteries shutoff, batteries is in non-by force charge mode.
When needs carry out forced charge, master control is sent the forced charge control signal to the diverter switch input circuit, diverter switch takes corresponding actions to act on diverter switch output loop unit after receiving signal, make DC power supply and batteries UNICOM, when DC power supply and batteries UNICOM, just carry out forced charge.At this moment, gather voltage signal by the voltage signal acquisition processing unit in the unit charge-discharge modules, in real time voltage signal is fed back to main control unit, main control unit is judged the signal that feeds back, if do not satisfy the condition that storage battery is full of, continue charging.When the signal that feeds back informed that the main control unit storage battery has been full of, main control unit sent control signal to the diverter switch input circuit unit in the forced charge module, acts on diverter switch output loop unit, and DC power supply is turn-offed in storage battery.
So far, finished a forced charge process.
B) batteries discharge mode:
Described unit charge-discharge modules is as the Executive Module that discharges and recharges of two or more batteries, finishes charging, discharges, discharges and recharges path and switch and the condition monitoring such as discharge and recharge; Comprise: charging voltage switching power supply, access switching unit, voltage signal acquisition processing unit.
In the time will discharging to a group storage battery, send control signal by master control, act on the passage switch unit of unit charge-discharge modules, the passage switch unit is through after the effect of master control, form one by this group storage battery group through the overcharge voltage switching power supply lead to an other group storage battery group half-duplex channel.The voltage of batteries forms and to satisfy an other group storage battery needed charging voltage of charging after the processing of overcharge voltage switching power supply, so this group storage battery discharge, an other group storage battery then charges.Simultaneously, the voltage signal acquisition processing unit gathers the voltage of two group storage batteries in real time, and Real-time Feedback is to main control unit.When this group storage battery makes voltage drop make voltage rise to setting to rated value or an other group storage battery because of charging because of discharge after, the voltage signal acquisition unit this condition feedback to main control unit, main control unit sends corresponding control signal, acts on the diverter switch input unit in passage switch unit and the forced charge module.Finish the battery discharging pattern.
So far, finished the discharge process of a storage battery.
C) battery charging pattern:
The charge mode of battery pack is corresponding with the discharge mode of an other group storage battery group, and detailed process is with the same described in the batteries discharge mode.
In the time will charging to a group storage battery, send control signal by master control, act on the passage switch unit of unit charge-discharge modules, the passage switch unit forms a half-duplex channel that is led to this group storage battery by an other group storage battery group through the overcharge voltage switching power supply through after the effect of master control.The voltage of another one batteries forms and to satisfy this group storage battery needed charging voltage of charging after the processing of overcharge voltage switching power supply.So this group storage battery charging, and the discharge of an other group storage battery.Simultaneously, the voltage signal acquisition processing unit gathers the voltage of two group storage batteries in real time, and Real-time Feedback is to main control unit.When this group storage battery rises to rated value because of charging or an other group storage battery makes voltage drop after rated value because of discharge, the voltage signal acquisition unit this condition feedback to main control unit, main control unit sends corresponding control signal, act on the diverter switch input unit in passage switch unit and the forced charge module, finish the charge in batteries pattern.
So far, finished the charging process of a batteries.
Claims (8)
1. energy-saving type charge, it is characterized in that, comprise: main control module, forced charge module, unit charge-discharge modules, wherein: the output of forced charge module is connected with batteries with DC power supply respectively, the input of the forced charge module reception control signal that is connected with main control module, the output of unit charge-discharge modules is connected with secondary battery unit and control end is connected with the output control terminal of main control module and export control command;
Described main control module is controlled a plurality of unit charge-discharge modules two or more batteries is discharged and recharged; This main control module comprises: the input circuit control unit, the power tube switch control unit, the cell voltage signal input unit, wherein: the diverter switch input circuit unit of input circuit control unit control forced charge module, thereby the DC power supply of control forced charge module and the folding of batteries, reach the purpose of forced charge, the power tube switch control unit connects the access switching unit of charge-discharge modules, reach the purpose of the charge and discharge mode between the given batteries, it is charge mode or discharge mode that the cell voltage signal input unit decides the operating state of the batteries at this element place according to the secondary battery unit voltage after processing;
Described unit charge-discharge modules comprises: charging voltage switching power supply, access switching unit and voltage signal acquisition processing unit, wherein: the charging voltage Switching Power Supply promotes the charging voltage value of batteries and links to each other with access switching unit, realize the charge and discharge mode between the different batteries group, stipulate that namely a group storage battery group is in charge mode, another group storage battery group is in discharge mode, and the voltage signal acquisition processing unit gathers magnitude of voltage to determine the charging and discharging state of batteries;
Described charging voltage switching power supply comprises: the first electrochemical capacitor, the second electrochemical capacitor, the 3rd electrochemical capacitor, the 4th electrochemical capacitor, the first decoupling capacitor, the first resistance, the second resistance, the first voltage adjuster, the first inductance, the second decoupling capacitor, the 3rd resistance, the 4th resistance, the 5th voltage stabilizing didoe, the one PNP triode, the 5th MOSFET pipe, the 5th rectifier diode, the 5th electrochemical capacitor, the 6th electrochemical capacitor, the 7th electrochemical capacitor, the 8th electrochemical capacitor, the 3rd decoupling capacitor, the 5th resistance and the 6th resistance, wherein: the first electrochemical capacitor, the second electrochemical capacitor, the 3rd electrochemical capacitor, the positive pole of the 4th electrochemical capacitor links to each other with the VCC pin of external input terminals DCDC_IN and the first voltage adjuster, their minus earth, one end of the first decoupling capacitor links to each other with the VCC pin of the first voltage adjuster, one end ground connection, one end of the first resistance links to each other with external input terminals DCDC_IN, one end links to each other with the IPKS pin of the first voltage adjuster, the two ends of the second resistance link to each other with the two ends of the first resistance respectively, one end of the second decoupling capacitor links to each other with the TC pin of the first voltage adjuster, other end ground connection, the TC pin of the first voltage adjuster is as external input signal DCDC_EN, one end of the 3rd resistance links to each other with the SE pin of the first voltage adjuster, an other end ground connection, one end of the 4th resistance links to each other with the SE pin of the first voltage adjuster, an other end ground connection, the A end of the 5th voltage stabilizing didoe links to each other with the SE pin of the first voltage adjuster, the collector electrode of K termination the one PNP triode, the collector electrode of the one PNP triode connects the gate pole of the 5th MOSFET pipe, grounded emitter, base stage connects the SE pin of the first voltage adjuster, the SC termination DCDC_IN of the first voltage adjuster, the gate pole of the 5th MOSFET pipe connects the collector electrode of a PNP triode, drain electrode connects an end of the first inductance, source ground, the IPKS pin of one termination, first voltage adjuster of the first inductance, the input of another termination the 5th rectifier diode, the input of the 5th rectifier diode links to each other with the drain electrode of the 5th MOSFET pipe and the other end of the first inductance respectively, the outside output DCDC_OUT of the output termination of the 5th rectifier diode, the 5th electrochemical capacitor, the 6th electrochemical capacitor, the 7th electrochemical capacitor, the positive pole of the 8th electrochemical capacitor meets DCDC_OUT, minus earth, one termination DCDC_OUT of the 3rd decoupling capacitor, one end ground connection, one termination DCDC_OUT of the 5th resistance, the FB pin of one termination the first voltage adjuster, one end of one termination the 5th resistance of the 6th resistance, an end ground connection.
2. energy-saving type charge according to claim 1, it is characterized in that, described forced charge module comprises: DC power supply, diverter switch input circuit unit, diverter switch output loop unit, wherein: diverter switch input circuit unit links to each other with main control module and receives control command, realize the opening and closing movement of diverter switch output loop unit, diverter switch output loop unit output control command is to DC power supply, the connected sum of realizing batteries turn-offs, when DC power supply and batteries connection, batteries is in by force charge mode, when DC power supply and batteries shutoff, batteries is in non-by force charge mode.
3. energy-saving type charge according to claim 2, it is characterized in that, described DC power supply comprises: Voltage-output contact and Voltage Reference contact, wherein: the Voltage-output contact is connected with diverter switch output loop one end, and the Voltage Reference contact is connected with the zero potential of system.
4. energy-saving type charge according to claim 2, it is characterized in that, described diverter switch input circuit unit comprises: input circuit drive circuit and coil, wherein: the input circuit control unit of main control module outputs control signals to the input circuit drive circuit, the input circuit drive circuit is according to the control signal generation current and export coil to generation magnetic field, thereby realizes the control to diverter switch output loop unit.
5. energy-saving type charge according to claim 2, it is characterized in that, described diverter switch output loop unit comprises: input contact, loop, loop output contact and disconnecting link, wherein: a terminal of disconnecting link links to each other with input contact, loop, another terminal links to each other with the loop output contact, input contact, loop links to each other with the Voltage-output contact of described DC power supply, the loop output contact links to each other with the positive pole of batteries, when the coil of described diverter switch input circuit unit has electric current to pass through and produces magnetic field, disconnecting link with described diverter switch output loop unit under the effect of electromagnetic force is closed, this moment, input contact and the output contact of diverter switch output loop unit linked, the Voltage-output contact of DC power supply links to each other with the positive pole of batteries like this, the Voltage Reference contact of DC power supply links to each other with the negative pole of batteries, and DC power supply is charged by force to this batteries.
6. energy-saving type charge according to claim 1, it is characterized in that, described access switching unit comprises: the 6th MOSFET pipe, the 7th MOSFET pipe, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, first with the door, second with the door, the first schmitt inverter, the 3rd with the door, the 4th with the door, the 11 resistance, the 12 resistance, the first photoelectrical coupler, the second photoelectrical coupler, the 13 resistance and the 14 resistance, wherein: the drain electrode of the 6th MOSFET pipe meets external input terminals CHARGEEN_LEFT, source ground, gate pole connects the output of the 7th resistance, the gate pole of output termination the 6th MOSFET pipe of the 7th resistance, the output of input termination first and door, the output of input termination the 7th resistance of the 8th resistance, output head grounding, first with the input of output termination the 7th resistance of door, first input end connects the output of the first schmitt inverter, second the input connect the 4th with the door input, the input termination the 4th of the first schmitt inverter and the output of door, the first input end of input termination second and door, power supply termination VCC, earth terminal ground connection, the 4th with the input of output termination the first schmitt inverter of door, first input end connects the collector electrode of the first photoelectrical coupler, the collector electrode of the second input termination the second photoelectrical coupler, the input termination VCC of the 11 resistance, the collector electrode of output termination the first photoelectrical coupler, the collector electrode of the first photoelectrical coupler connect the 4th with the door input, grounded emitter, the output of A termination the 13 resistance of light-emitting diode, K termination external input signal Port_one, the input termination 5V power supply of the 13 resistance, the A end of output sending and receiving optical diode, the drain electrode of the 7th MOSFET pipe meets external input terminals CHARGEEN_RIGHT, source ground, gate pole connects the output of the 9th resistance, the gate pole of output termination the 7th MOSFET pipe of the 9th resistance, the output of input termination second and door, the output of input termination the 9th resistance of the tenth resistance, output head grounding, second with the input of output termination the 9th resistance of door, first input end connects the output of the first schmitt inverter, second the input connect the 4th with the door the second input and the collector electrode of the second photoelectrical coupler, the 3rd with the door two input end groundings, output is unsettled, the input termination VCC of the 12 resistance, the collector electrode of output termination the second photoelectrical coupler, the collector electrode of the second photoelectrical coupler connect the 4th with the door the second input, grounded emitter, the output of A termination the 14 resistance of light-emitting diode, K termination external input signal Port_two, the input termination 5V power supply of the 14 resistance, the A end of output sending and receiving optical diode.
7. energy-saving type charge according to claim 1, it is characterized in that, described voltage signal acquisition processing unit comprises: the 15 resistance, the 16 resistance, the 4th decoupling capacitor, the 5th decoupling capacitor, the 17 resistance, the 18 resistance, the first operational amplifier, the second operational amplifier, the first analog switch, the 19 resistance, the 20 resistance, the 21 resistance, the 6th decoupling capacitor, the 22 resistance, the 23 resistance, the 24 resistance, the 7th decoupling capacitor, the 6th voltage stabilizing didoe. the 7th voltage stabilizing didoe, the first voltage comparator, the second voltage comparator, the 25 resistance, the 26 resistance, the 3rd photoelectrical coupler, the 4th photoelectrical coupler, the 27 resistance and the 28 resistance, wherein: the input of the 15 resistance links to each other with external signal BATTERY_RIGHT, the positive input terminal of output termination the first operational amplifier, the positive input terminal of input termination first operational amplifier of the 4th decoupling capacitor, output head grounding, the positive input terminal of input termination first operational amplifier of the 17 resistance, output head grounding, the output of positive input termination the 15 resistance of the first operational amplifier, the CH0 pin of negative input termination the first analog switch, the CH0 pin of output termination the first analog switch, power supply termination VCC, earth terminal ground connection, the input of the 16 resistance links to each other with external signal BATTERY_LEFT, the positive input terminal of output termination the second operational amplifier, the positive input terminal of input termination second operational amplifier of the 5th decoupling capacitor, output head grounding, the positive input terminal of input termination second operational amplifier of the 18 resistance, output head grounding, the output of positive input termination the 16 resistance of the second operational amplifier, the CH1 pin of negative input termination the first analog switch, the CH1 pin of output termination the first analog switch, power supply termination VCC, earth terminal ground connection, the VCC pin of the first analog switch meets VCC, and the CH0 pin connects the output of the first operational amplifier, and the CH1 pin connects the output of the second operational amplifier, the SELECT pin connects external input signal, the COM pin connects negative input end and second positive input terminal than voltage comparator of the first voltage comparator, INH and GND pin ground connection, and the NC pin is unsettled, the input termination VCC of the 19 resistance, the positive input terminal of output termination the first voltage comparator, the positive input terminal of input termination first voltage comparator of the 20 resistance, the input of output termination the 21 resistance, the output of input termination the 20 resistance of the 21 resistance and the Voltage Reference end of the 6th voltage stabilizing didoe, output head grounding, the input of input termination the 21 resistance of the 6th decoupling capacitor, the output of output termination the 21 resistance, the positive input terminal of output termination first voltage comparator of the 6th voltage stabilizing didoe, input end grounding, the output of positive input termination the 19 resistance of the first voltage comparator, the COM pin of negative input termination the first analog switch, the K utmost point of the light-emitting diode of output termination the 3rd photoelectrical coupler, the power supply termination power, earth terminal ground connection, the input termination VCC of the 25 resistance, the A utmost point of the light-emitting diode of output termination the 3rd photoelectrical coupler, the collector electrode of the 3rd photoelectrical coupler connects the output of the 27 resistance, simultaneously as external output port Port_three, grounded emitter, the input termination 5V power supply of the 27 resistance, output connects the collector electrode of the 3rd photoelectrical coupler, the input termination VCC of the 22 resistance, the negative input end of output termination second voltage comparator, the negative input end of the input termination second voltage comparator of the 23 resistance, the input of output termination the 24 resistance, the output of input termination the 23 resistance of the 24 resistance and the Voltage Reference end of the 7th voltage stabilizing didoe, output head grounding, the input of input termination the 24 resistance of the 7th decoupling capacitor, the output of output termination the 24 resistance, the negative input end of the output termination second voltage comparator of the 3rd voltage stabilizing didoe, input end grounding, the output of negative input termination the 22 resistance of second voltage comparator, the COM pin of positive input termination the first analog switch, the K utmost point of the light-emitting diode of output termination the 4th photoelectrical coupler, power supply termination power, earth terminal ground connection, the input termination VCC of the 26 resistance, the A utmost point of the light-emitting diode of output termination the 4th photoelectrical coupler, the collector electrode of the 4th photoelectrical coupler connects the output of the 28 resistance, simultaneously as external output port Port_four, grounded emitter, the input termination 5V power supply of the 28 resistance, output connects the collector electrode of the 4th photoelectrical coupler.
8. energy-saving type charge according to claim 1 is characterized in that, described input circuit control unit outputting standard Transistor-Transistor Logic level is also controlled diverter switch input circuit unit; Described power tube switch control unit outputting standard Transistor-Transistor Logic level is as switching signal and control the direction that discharges and recharges of two group storage battery unit, the output of one group storage battery unit is connected to the input of BOOST power supply, and the output of BOOST power supply is connected to another group storage battery unit it is charged; The batteries cell discharge that perhaps allows script charge, the originally secondary battery unit of discharge charging; Described cell voltage signal input unit feeds back to processor with the handled secondary battery unit voltage of voltage signal acquisition processing unit as 0 and 1 digital quantity, as the sign of overvoltage and under voltage degree.
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| US7378818B2 (en) * | 2002-11-25 | 2008-05-27 | Tiax Llc | Bidirectional power converter for balancing state of charge among series connected electrical energy storage units |
| CN101667743B (en) * | 2008-09-05 | 2012-07-25 | 凹凸电子（武汉）有限公司 | Cell balancing circuit, method and system |
| CN201752078U (en) * | 2010-06-30 | 2011-02-23 | 中山市嘉科电子有限公司 | Charging tube management system of energy transfer way of multi lithium ion battery set |
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