CN206272264U

CN206272264U - Battery photovoltaic commercial power complementary combinations Logic control module

Info

Publication number: CN206272264U
Application number: CN201621204853.8U
Authority: CN
Inventors: 李�根; 廖东进; 何胜军; 江达飞
Original assignee: Quzhou College of Technology
Current assignee: Quzhou College of Technology
Priority date: 2016-11-08
Filing date: 2016-11-08
Publication date: 2017-06-20
Anticipated expiration: 2026-11-08

Abstract

Battery photovoltaic commercial power complementary combinations Logic control module, including non-self-lock-ing button, non-self-lock-ing button realizes that the binary addition of touch potential is counted by double D flip-flop number modules, the output end of non-self-lock-ing button is also exported by delay circuit trigger data latch cicuit, the output end of two d type flip flops of double D flip-flop numbers modules is all connected with the data-latching circuit, one data output end of data-latching circuit connects the first relay by optical coupling isolation circuit, the contact of the first relay can make output port connect photovoltaic interface P1 chargings, another data output end of data-latching circuit connects the second relay by optical coupling isolation circuit, the contact of the second relay can make output port connect commercial power interface P2 chargings.Output port OUT1 can be made individually to connect the charging of one of photovoltaic interface, commercial power interface for the output end level of double D flip-flop numbers modules and connection photovoltaic interface, commercial power interface charge simultaneously, and the two does not charge to battery under shutdown mode.

Description

Battery photovoltaic commercial power complementary combinations Logic control module

Technical field

The utility model is related to a kind of photovoltaic commercial power complementation charge and discharge maintenance device of battery.

Background technology

In daily life, be easy to carry because of battery, it is repeatable utilize, many conventional electronic equipments or In instrument and meter all can use 12V storage battery power supplies, these electronic devices based on portable, with renewable new energy Development, using photovoltaic, mains hybrid mode be battery charge will be as a kind of trend.Additionally, correct charge and discharge system It is not only cost-effective, can also effectively extend the service life of battery, nominal voltage is the preferable terminal voltage of the battery of 12V Scope is 12V~13.5V, and battery is in over-discharge state or overcharge condition can all influence the use longevity of battery Life, nominal voltage for 12V battery in use, should try one's best and avoid the terminal voltage of battery from being in less than 12V for a long time Or higher than 14.5V.

The battery of over-discharge state or overcharge condition is chronically at, because inner conductive ion cannot effectively be swashed Hair, battery will largely effect on its service life because of improper use, and user is when using battery often to battery Dump energy is unclear, and battery does not carry out timely and effectively discharge and recharge and may result in equipment work midway electric power deficiency or make With it is unstable situations such as occur.

Utility model content

The utility model is for above shortcomings in the prior art, there is provided a kind of battery photovoltaic commercial power complementary combinations Logic control module, can make battery individually connect one of photovoltaic interface, commercial power interface charge and simultaneously connection photovoltaic interface, Commercial power interface charges, and the two does not charge to output port under shutdown mode, has the advantages that energy-conserving and environment-protective.

In order to solve the above-mentioned technical problem, the utility model uses following technical scheme：

Battery photovoltaic commercial power complementary combinations Logic control module, including a non-self-lock-ing button, non-self-lock-ing button pass through double D Flip-flop number module realizes that the binary addition of touch potential is counted, and the output end of non-self-lock-ing button is also triggered by delay circuit One data-latching circuit is exported, and the output end of two d type flip flops of double D flip-flop numbers modules is all connected with the data-latching circuit Data input pin, a data output end of data-latching circuit connects the first relay by optical coupling isolation circuit, first after The contact of electrical equipment can make output port OUT1 connect photovoltaic interface P1 chargings, and another data output end of data-latching circuit passes through Optical coupling isolation circuit connects the second relay, and the contact of the second relay can fill output port OUT1 connections commercial power interface P2 Electricity, the output end level of described pair of two d type flip flops of D flip-flop number modules can make output port OUT1 individually connect photovoltaic to connect One of mouth, commercial power interface charge and connection photovoltaic interface, commercial power interface charge simultaneously, and photovoltaic connects under shutdown mode Mouth, commercial power interface do not charge to output port；

Being connected between the photovoltaic interface P1 and output port prevents the first diode of electric current reversely charging, the civil power from connecing Be connected with the second diode for preventing electric current reversely charging between mouthful P2 and output port, when photovoltaic interface P1 and commercial power interface P2 simultaneously When being charged for output port, the first diode can prevent commercial power charged its current flowing backwards when accounting for main to photovoltaic interface, and second Diode can prevent photovoltaic charged its current flowing backwards when accounting for main to commercial power interface, so as to prevent photo-voltaic power supply or mains supply Damage；

Further, described pair of D flip-flop numbers module includes first d type flip flop and the second d type flip flop of cascade, a D The clock end of trigger connects the output end of the button Anti-shaking circuit, and the D ends of the first d type flip flop connect its inverse output terminal, The D ends of the second d type flip flop connect its inverse output terminal, and the inverse output terminal of the first trigger connects the D ends of the second d type flip flop, Then the binary addition counting module of asynchronous clock is constituted, wherein the second trigger is exported for high-order, the first trigger is Low level is exported；

The inverse output terminal of described pair of the first d type flip flop of D flip-flop number modules and the inverse output terminal of the second d type flip flop The data-latching circuit is connected, a data output end IN0_out of data-latching circuit passes through optical coupling isolation circuit and PNP Triode Q1 connects the first relay, when the data output end IN0_out of data-latching circuit exports low level, by light Coupling isolation circuit turns on PNP triode Q1, electricity on the first relay, the normally opened contact closure of the first relay, makes output end Mouth OUT1 connection photovoltaic interfaces P1 charges；

Another data output end IN1_out of data-latching circuit is connected by optical coupling isolation circuit and PNP triode Q2 Second relay, when the data output end IN1_out of data-latching circuit exports low level, is made by optical coupling isolation circuit PNP triode Q2 is turned on, electricity on the second relay, the normally opened contact closure of the second relay, output port OUT1 is connected city Electrical interface P2 charges；

When the data output end IN0_out and data output end IN1_out of data-latching circuit U7 export low level, It can be seen that, it can simultaneously drive electricity on the first relay and the second relay, make photovoltaic interface P1 and commercial power interface P2 while being Output port OUT1 powers；

When the data output end IN0_out and data output end IN1_out of data-latching circuit U7 export high level, This is shutdown mode, and photovoltaic interface and commercial power interface be not for output port OUT1 powers.

Further, the positive output end connection decoding of the first d type flip flop of the double D trigger and the second d type flip flop Device, the first d type flip flop connects the low level input of decoder, and the second d type flip flop connects the high-order input of decoder, the decoding The binary code of input is changed into the decimal system by device, and by numeral method, thus can show the button of non-self-lock-ing button Number.

Preferably, the non-self-lock-ing button is double-point double-throw switch S1, and the plug-in strip connection of double-point double-throw switch S1 is pressed The input of key Anti-shaking circuit, another plug-in strip of double-point double-throw switch S1 connects the triggering end of delay circuit, double-point double-throw switch Two plug-in strips linkage, double-point double-throw switch S1 non-keying end ground connection；

The button Anti-shaking circuit is rest-set flip-flop Anti-shaking circuit, and the rest-set flip-flop Anti-shaking circuit is connected by two NAND gates Constitute, after the double-point double-throw switch S1 is pressed and unclamped, the output end of rest-set flip-flop Anti-shaking circuit is tactile by rising edge level Send out pair D flip-flop numbers module described and start working, the first d type flip flop of double D flip-flop numbers modules, the second d type flip flop are Rise along level triggers；

The delay circuit uses 555 delay trigger circuits, and it is low level triggering trigger, until non-self-lock-ing button After high level after release makes charging capacitor C13 charge to certain voltage, the output end of 555 delay trigger circuits just exports low electricity It is flat, with trigger data latch cicuit output data, the delay time of 555 delay trigger circuits can adjust its charging capacitor C13 and Adjustable resistance R7 is realized.

Preferably, the delay circuit uses chip NE555, and data-latching circuit is using chip 74HC573, double D triggerings Device uses chip 74LS74, decoder to use chip 74LS47.

The beneficial effects of the utility model are：One of photovoltaic interface, commercial power interface can be individually connected to charge and while connect Photovoltaic interface, commercial power interface is connect to charge, and photovoltaic interface, commercial power interface do not charge to battery under shutdown mode； Meet the developing direction of renewable new energy, there are energy-conserving and environment-protective.

Brief description of the drawings

Fig. 1 is one of circuit diagram of photovoltaic commercial power complementary combinations Logic control module of the present utility model.

Fig. 2 is the two of the circuit diagram of photovoltaic commercial power complementary combinations Logic control module of the present utility model.

Fig. 3 is the three of the circuit diagram of photovoltaic commercial power complementary combinations Logic control module of the present utility model.

Fig. 4 is the four of the circuit diagram of photovoltaic commercial power complementary combinations Logic control module of the present utility model.

Fig. 5 compares the circuit theory diagrams of control module for the accumulator cell charging and discharging of the embodiment of the present invention.

Fig. 6 is the circuit diagram of voltage hysteresis comparator in the same direction.

Fig. 7 is the transmission characteristic figure of voltage hysteresis comparator in the same direction.

Fig. 8 is the transmission characteristic figure of first voltage hysteresis comparator in the embodiment of the present invention.

Fig. 9 is the transmission characteristic figure of second voltage hysteresis comparator in the embodiment of the present invention.

Battery tension collections and the circuit diagram of display module of the Figure 10 for the embodiment of the present invention.

Figure 11 is the circuit diagram of double 15V power supplys of the power module of the embodiment of the present invention.

Figure 12 is the circuit diagram of double 5V power supplys of the power module of the embodiment of the present invention.

Specific embodiment

The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings, it will be appreciated that described herein Embodiment is only used for illustrating implementation method of the present utility model, does not constitute to limitation of the present utility model.

Reference picture 1-12：12V batteries photovoltaic commercial power complementation charge and discharge maintenance device, including power module, photovoltaic commercial power Complementary combinations Logic control module and accumulator cell charging and discharging compare control module, and the nominal voltage of battery is 12V.

The photovoltaic commercial power complementary combinations Logic control module includes being a non-self-lock-ing button, and it is two in the present embodiment One plug-in strip of the double-point double-throw switch S1 of plug-in strip linkage, double-point double-throw switch S1 connects double D and triggers by RS buttons Anti-shaking circuit Counting module, double-point double-throw switch another plug-in strip connection delay circuit U6, namely in figure double-point double-throw switch 4 end key_in The triggering end TRIG of connection delay circuit U6, when double-point double-throw switch S1 is pressed, key_in is low level, delay circuit U6 quilts Triggering；

The Enable Pin OE of the output end connection data-latching circuit U7 of delay circuit U6, the described pair of D flip-flop number module Inverse output terminal IN0, IN1 of each d type flip flop are all connected with the data input pin of data-latching circuit U7, in the delay circuit After U6 time delay certain hours, data output end IN0_out, IN1_out correspondence of trigger data latch cicuit U7 export its data The data of input IN0, IN1；The data output end IN0_out of data-latching circuit U7 by optical coupling isolation circuit U9 and PNP triode Q1 connects the first relay K1, when the data output end IN0_out of data-latching circuit exports low level, Optical coupling isolation circuit U9 is turned on, and PNP triode Q1 conductings, electricity on the first relay K1, the normally opened contact of the first relay K1 is closed Close, output port OUT1 is connected photovoltaic interface P1, in figure, the anode of photovoltaic interface P1 connects output port OUT1's by D5 The K of normally opened contact connection output port OUT1 of the negative terminal of K+, photovoltaic interface P1 after closing-；

Another data output end IN1_out of data-latching circuit U7 passes through optical coupling isolation circuit U12 and PNP triode Q2 The second relay K2 is connected, when the data output end IN1_out of data-latching circuit exports low level, optical coupling isolation circuit U12 is turned on, PNP triode Q2 conductings, electricity on the second relay K2, the normally opened contact closure of the second relay K2, makes output end Mouth OUT1 connection commercial power interfaces P2, the output port OUT1 is for connecting battery charging；

When two the data output ends IN0_out and IN1_out of data-latching circuit U7 export low level, while driving Electricity on dynamic first relay K1 and the second relay K2, makes photovoltaic interface P1 and commercial power interface P2 be output port OUT1 and supplies Electricity, namely simultaneously for battery charges；As the data output end IN0_out and data output end IN1_ of data-latching circuit U7 When out exports high level, this is shutdown mode, and photovoltaic interface and commercial power interface be not for output port OUT1 powers；

The delay circuit U6 be used for wait non-self-lock-ing key-press input finish and double D flip-flop numbers module final outputs after Trigger data latch cicuit is exported；

Being connected between the photovoltaic interface P1 and output port OUT1 prevents the first diode D5 of electric current reversely charging, civil power Being connected between interface P2 and output port OUT1 prevents the second diode D7 of electric current reversely charging, when photovoltaic interface P1 and civil power connect Mouthful P2 charges for output port OUT1 simultaneously when, the first diode D5 can prevent commercial power charged its current flowing backwards when accounting for main extremely Photovoltaic interface, the second diode D7 can prevent photovoltaic charged its current flowing backwards when accounting for main to commercial power interface, so as to prevent light Volt power supply or mains supply are damaged；

Described pair of D flip-flop numbers module includes that the first d type flip flop U11A of cascade and the second d type flip flop U11B, a D are tactile The clock end for sending out device connects the output end of the RS buttons Anti-shaking circuit, and the D ends of the first d type flip flop connect its inverse output terminal, The D ends of the second d type flip flop connect its inverse output terminal, and the inverse output terminal of the first trigger connects the D ends of the second d type flip flop, Then the binary addition counting module of asynchronous clock is constituted, wherein the second trigger is exported for high-order, the first trigger is Low level is exported；

The rest-set flip-flop Anti-shaking circuit is connected and composed by two NAND gates U10A and U10B.When non-self-lock-ing button is pressed When, its 1 end be low level, no matter whether non-self-lock-ing button unclamps its 1 end, as long as not with its 3 end in contact, U10A exports low all the time Level, realizes the stabilization function of button.Non-self-lock-ing button press and unclamp to its 3 end in contact after, U10A output rising edge Level, the clock end CLK of double D flip-flop numbers modules is rising edge triggering, U10A output rising edge level, double D flip-flop numbers moulds The clock end CLK of block is triggered for rising edge, and U11B is exported for high-order in Fig. 6, and U11A is exported for low level, and U11B, U11A are real successively Existing 00,01,10,11 plus coujnt；

Its detailed process is that the logical function of d type flip flop is：Qⁿ⁺¹=D, 74LS74 are triggered for rising edge.So, in figure, IN0=D0, IN1=D1, it is assumed that in an initial condition, the output of first, second d type flip flop are 0, i.e. A=0, B=0；Then First, the inverse output terminal of the second d type flip flop is 1, i.e. IN0=1, IN1=1, thus first, second d type flip flop D ends state It is D0=1, D1=1；When the output end of rest-set flip-flop Anti-shaking circuit namely the clock end CLK of the first d type flip flop become from 0 for the first time When turning to 1, now U11A state changes are A=1, IN0=0, D0=0；IN0=0 causes that the clock end CLK of U11B is trailing edge Pulse, therefore U11B states are unchanged, i.e. B=0, IN1=1, D1=1, now double D flip-flop numbers modules (from a high position to low level) It is output as 01, i.e. B=0, A=1；

When the clock end CLK of the first d type flip flop becomes for second from 0 turns to 1, now U11A state changes are A=0, IN0 =1, D0=1；IN0=1 causes the clock end CLK of U11B for rising edge pulse, therefore U11B state changes are B=1, IN1=0, D1=0, now double D flip-flop numbers modules (from a high position to low level) be output as 10, i.e. B=1, A=0；

When the clock end CLK third times of the first d type flip flop become from 0 turns to 1, now U11A state changes are A=1, IN0 =0, D0=0；IN0=0 causes that the clock end CLK of U11B is trailing edge pulse, therefore U11B states are unchanged, i.e. B=1, IN1= 0, D1=0, now double D flip-flop numbers modules (from a high position to low level) be output as 11, i.e. B=1, A=1；

When the clock end CLK of the first d type flip flop becomes for the 4th time from 0 turns to 1, now U11A state changes are A=0, IN0 =1, D0=1；IN0=1 causes the clock end CLK of U11B for rising edge pulse, therefore U11B state changes are B=0, IN1=1, D1=1, double D flip-flop numbers modules (from a high position to low level) are output as 00, i.e. B=0, A=0, logical relation is returned to initially State, thus reaches the effect of plus coujnt.

IN0, IN1 according to double D flip-flop numbers modules pass through data latches and the first relay, the company of the second relay Connect circuit, it is known that, it is output as under 00 original state in double D flip-flop numbers modules, button is pressed next time, IN0=0, IN1=1 Make output port OUT1 connect photovoltaic interface to power, button presses secondary, IN0=1, IN1=0 makes output port OUT1 connect city Electrical interface is powered, and button is pressed three times, IN0=0, and IN1=0 makes output port OUT1 connect photovoltaic interface and commercial power interface simultaneously Power supply, button is pressed four times, returns to original state, and this is shutdown mode, now IN0=1, and IN1=1 makes photovoltaic interface and civil power Interface is not for output port OUT1 powers.

The output state of the photovoltaic commercial power complementary combinations Logic control module of table one

In the present embodiment, the positive output of the first d type flip flop U11A and the second d type flip flop U11B of the double D trigger End connection decoder U8, decoder U8 is using chip 74LS74, the low level input of the first d type flip flop U11A connection decoders U8 End, the high-order input of the second d type flip flop U11B connection decoders U8, decoder U8 exports double D flip-flop numbers modules Binary code changes into the decimal system, and by numeral method, thus can show the touch potential of non-self-lock-ing button, thus points out Corresponding output state.

In the present embodiment, the delay circuit is 555 delay trigger circuits, and the output end of the non-self-lock-ing button is connected The TRIG ends of 555 triggers circuits, it is low level triggering, and timing is started after triggering, until the height electricity after non-self-lock-ing button unclamps Put down after charging capacitor C13 is charged to certain voltage, the output end of 555 delay trigger circuits just exports low level, to trigger number Exported according to latch cicuit 74HCT573, be achieved in time delay, the delay time of 555 delay trigger circuits by charging capacitor C13 and Adjustable resistance R7 is realized jointly；

The accumulator cell charging and discharging compares control module includes being the sluggish ratio of the first voltage of in-phase voltage hysteresis comparator Compared with device U14A and second voltage hysteresis comparator, the input in the same direction of first voltage hysteresis comparator U14A passes through first resistor R1 The anode of battery is connected, the first feedback resistance R2 is connected between its input in the same direction and output end, its reverse input end connects Connect the first reference voltage V_R1, its output end connection voltage-regulator diode ZD1, the input in the same direction of second voltage hysteresis comparator U14B The anode of battery is connected by 3rd resistor R3, the second feedback resistance R4 is connected between its input in the same direction and output end, Its reverse input end connects the second reference voltage V_R2, its output end connection voltage-regulator diode ZD2, first reference voltage is by the One adjustable DC electric power generating composition, the second reference voltage is by the second adjustable DC electric power generating composition；

The output end of first voltage hysteresis comparator U14A is by the compound transistor of positive-negative-positive (by PNP triode Q3, PNP Triode Q4 is constituted) the magnet coil K3A of the 3rd relay of connection, it is connected in parallel on the after charging indicator light LED8 connection current-limiting resistances The magnet coil K3A two ends of three relays, the contact of the 3rd relay is two-way switch K3B, and the normally-closed contact connection of K3B is overcharged Charging input end mouthful IN1 two ends are attempted by after shut-off indicator lamp LED9, the normally opened contact of K3B is connected to charging input end mouthful IN1 To on the charge circuit of battery；The output end of second voltage hysteresis comparator U14B by the compound transistor of positive-negative-positive (Q5, Q6 the magnet coil K4A of the 4th relay) is connected, is crossed after putting shut-off indicator lamp connection current-limiting resistance and is connected in parallel on the 4th relay Magnet coil K4A two ends, the contact of the 4th relay is two-way switch K4B, and the normally-closed contact of K4B is connected to battery to load Discharge loop on, the normally opened contact of K4B is hanging, and discharge indicating lamp LED11 connects the normally-closed contact and limit of the 4th relay The two ends of battery are connected in parallel on after leakage resistance；

The voltage limit of visiting of first voltage hysteresis comparatorLower threshold voltageWherein V_R1It is above-mentioned first reference voltage, V_ZIt is the voltage stabilizing value of voltage-regulator diode ZD1, Make the voltage limit V that visits_p1=cross charge shutoff voltage 14.5V, lower threshold voltage V_p2=shut-off of charging recovers voltage 13.5, then can be with Calculate the ratio and the first required reference voltage V of first resistor R1 and the first feedback resistance R2_R1Numerical value；

In characteristic curve, the numerical value of regulation voltage-regulator diode ZD1 can make the characteristic curve of first voltage hysteresis comparator Move up and down, the numerical value of voltage-regulator diode ZD1 takes can be such that characteristic curve moves to numerical value during output high level 1, low level 0；

Similarly, the voltage limit of visiting of second voltage hysteresis comparatorLower threshold voltageWherein V_R2It is above-mentioned second reference voltage, V_ZIt is the voltage stabilizing value of voltage-regulator diode ZD2, Make the voltage limit V that visits_p1=electric discharge shut-off recovers voltage 12V, lower threshold voltage V_p2=cross and put shut-off voltage 11V, then can calculate Go out the ratio and the second required reference voltage V of 3rd resistor R3 and the second feedback resistance R4_R2Numerical value；

Similarly, the numerical value of voltage-regulator diode ZD2 takes can make the characteristic curve of second voltage hysteresis comparator move high to output Numerical value during level 1, low level 0；

The characteristic of voltage-regulator diode ZD1 is, when the output end of first voltage hysteresis comparator exports high level, to the height Level carries out voltage stabilizing, when the output end of first voltage hysteresis comparator exports low level, does not produce shadow to the output low level Ring, voltage-regulator diode ZD2 is similarly；

Thus it is possible to realize, when the terminal voltage of battery was less than charge shutoff voltage 14.5V, the sluggish ratio of first voltage Low level is exported compared with device U14A, the low level turns on the compound transistor of positive-negative-positive, and specifically, low level makes PNP triode Q3 is turned on, Q3 output low levels, turns on PNP triode Q4, and then electricity on the magnet coil K3A of the 3rd relay, then double Disconnected to the normally-closed contact of switch K3B, make to overcharge shut-off indicator lamp LED9 and do not light, its normally opened contact closure, connect charge it is defeated Chargings of the inbound port IN1 to battery, the upper electricity of K3A lights charging indicator light LED8, and this charged state is maintained to electric power storage The terminal voltage in pond rises to charging shut-off voltage 14.5V；When the terminal voltage of battery reached charge shutoff voltage 14.5V, the There is upset output high level in one voltage hysteresis comparator U14A, the high level ends the compound transistor of positive-negative-positive, specifically It is that high level ends PNP triode Q3, Q3 output high level ends PNP triode Q4, then the electricity of the 3rd relay Magnetic coil K3A does not go up electricity, and the normally opened contact of two-way switch K3B disconnects, and disconnects chargings of the output port OUT1 to battery, and its is normal Closed contact is closed, and is made to overcharge shut-off indicator lamp LED9 and is lighted, and this charging off state is maintained to the terminal voltage drop of battery Shut-off of as little as charging recovers voltage 13.5V；When the terminal voltage of battery is reduced to charging shut-off recovers voltage 13.5V, first There is upset output low level in voltage hysteresis comparator U14A, switch to charged state.

Thus it is possible to realize, when the terminal voltage of battery was higher than that second voltage sluggishness compares when putting shut-off voltage 11V Device U14B exports high level, and the high level ends the compound transistor of positive-negative-positive, and specifically, high level cuts PNP triode Q5 Only, Q5 outputs high level, ends PNP triode Q6, and then the magnet coil K4A of the 4th relay does not go up electricity, and K4B's is normally closed The closing of contact, connects electric discharge of the battery to loading, and the normally-closed contact closure of K4B also lights discharge indicating lamp LED11, K4A Do not go up electricity and made to put shut-off indicator lamp LED10 and do not light, this discharge condition put shut-off until the terminal voltage of battery is reduced to Voltage 11V, when the terminal voltage of battery was reduced to puts shut-off voltage 11V, second voltage hysteresis comparator U14B is turned over Low level is transferred out, the low level turns on compound transistor Q5, Q6 of positive-negative-positive, and specifically, low level makes PNP triode Q5 Conducting, Q5 output low levels, turns on PNP triode Q6, electricity, the normally-closed contact of K4B on the magnet coil K4A of the 4th relay Disconnect, disconnect electric discharge of the battery to loading, the upper electricity of K4A also made to put and turns off indicator lamp LED10 and light, the disconnection of its normally-closed contact Discharge indicating lamp LED11 is set not light, the terminal voltage that this electric discharge off state is maintained to battery rises to electric discharge shut-off Recover voltage 12V；When the terminal voltage of battery reaches electric discharge shut-off recovers voltage 12V, second voltage hysteresis comparator U14B Generation upset output high level, switchs to discharge condition.

First voltage hysteresis comparator U14A and second voltage hysteresis comparator U14B are supplied by three-terminal voltage regulator U13 Electricity, U13 may be implemented in voltage stabilizing in the case that input voltage changes using the input connection battery of chip LM317, LM317 Output, regulation RP5 can change the size of output voltage, and the output end VCC1 of LM317 connects first, second voltage hysteresis comparator Positive power source terminal.

Accumulator cell charging and discharging compares the charging input end mouthful IN1 connection photovoltaic commercial power complementary combinations logic controls of control module The output port OUT1 of module.OUT2 in Fig. 5 is battery to the electric discharge port of load.

Accumulator cell charging and discharging compares control module access between charging input end mouthful IN1 and battery prevents electric current reversely charging Diode D0, prevent battery from being discharged to charging input end mouthful IN1.The anode of the 3rd relay is not connected to the anode of battery But the anode of connection charging input end mouthful IN1, it is possible to reduce the power consumption of battery, more power saving.

The operation principle of in-phase voltage hysteresis comparator explained below.Fig. 6 is the circuit diagram of in-phase voltage hysteresis comparator, Fig. 7 is the transmission characteristic figure of in-phase voltage hysteresis comparator, only when input voltage reaches the U upper limits, the sluggish ratio of in-phase voltage High level is just exported compared with device, as long as hereafter input voltage does not drop to U lower limits and then continues to output high level, only works as input voltage When dropping to U lower limits, in-phase voltage hysteresis comparator just overturns output low level, as long as hereafter input voltage is not risen on U Limit then continues to output low level.

Fig. 8 is the transmission characteristic figure of first voltage hysteresis comparator U14A in the present embodiment, and it constitutes charge circuit, its In, the U upper limits are 14.5V, and U lower limits are 13.5V.Fig. 9 is the transmission characteristic of second voltage hysteresis comparator U14B in the present embodiment Figure, it constitutes discharge loop, and in figure, the U upper limits are 12V, and U lower limits are 11V.Following table two is the corresponding discharge and recharge shape of battery tension State.

The corresponding charging and discharging state of the battery tension of table two

Battery	To load supplying	State description	Instruction state
				Less than 11V	0V	Battery is crossed and puts shut-off	LED8、LED10
11~12V	11~12V	Battery Guo Fang areas	LED8、LED11
				12V	12V	Battery is crossed and puts recovery point	LED8、LED11
12~13.5V	12~13.5V	Battery is normally exported	LED8、LED11
				13.5V	13.5V	Accumulator super-charge recovery point	LED8、LED11
13.5~14.5V	13.5~14.5V	Accumulator super-charge area	LED8、LED11
				More than 14.5V	14.5V	Accumulator super-charge is turned off	LED9、LED11

In the present embodiment, as shown in Figure 10, the battery tension is gathered and display module, and battery tension is gathered and aobvious Show module for gathering the terminal voltage of battery and showing；Using A/D conversion chip ICL7107, it passes through voltage collection circuit The two ends of battery are connected, in Fig. 10 as shown on the right, the sampled point Test_in of voltage sampling circuit connects voltage collection circuit The high-order input of 31 pin of ICL7107 is connect, the output end of the ICL7107 is directly driven four LED charactrons, set by R29 Determine decimal point position, make indication range be ± 19.99, can then realize that the terminal voltage of the battery that nominal voltage is 12V shows.Four Individual LED charactrons are common-anode LED charactrons.Test1 buttons press rear LED charactrons for detecting circuit signal integrality Output character " 1888 ".

The 36 pin reference voltages of ICL7107 need to be by adjusting RP7 calibrations at 100 millivolts, and 27,28,29 pin are 0.22uF, 47k The resistance-capacitance network of Ω, 0.47uF, is achieved in A/D conversion outputs.ICL7107 and LED charactrons constitute digital voltmeter.

As shown in Figure 11,12, power module includes double 15V power supplys, double 5V power supplys to the power module.Double 15V power supplys by Civil power connects two three terminal regulator LM7815 after transformer, rectifier, filter capacitor, and+15V and -15V electricity is exported respectively Source, when exporting normal, LED1 and LED2 are lighted, and have controlling switch S2 between rectifier and filter capacitor；Double 5V power supplys are by double 15V Two three terminal regulator LM7805 are connected after ± 15V filtered the electric capacity of power supply that power supply is obtained ,+5V and -5V electricity is exported respectively Source, when exporting normal, LED3 and LED4 are lighted, and have controlling switch S3 between ± 15V power supplys and filter capacitor.

12V batteries crosses charge shutoff voltage, charges with turning off and recover voltage, electric discharge shut-off voltage, electric discharge pass in the present invention Disconnected recovery voltage is not limited only to 14.5V, 13.5V, 11V, 12V described in above-described embodiment, can adjust within the specific limits It is whole.Such as, it is preferable that it can be 14.1~14.5V to cross charge shutoff voltage, shut-off of charging recover voltage can for 13.1~ 13.5V, electric discharge shut-off voltage can be 10.8~11.5V, and it can be 11.5~12V that electric discharge shut-off recovers voltage.

Above-described embodiment is only enumerating for the technology of the present invention design way of realization, the protection being not intended to limit the invention Scope, equivalent that all technology designs under this invention are made and improves etc., should be included in protection scope of the present invention it It is interior.

Claims

1. battery photovoltaic commercial power complementary combinations Logic control module, it is characterised in that：Including a non-self-lock-ing button, non-self-lock-ing is pressed The excessively double D flip-flop numbers modules of push-to realize that the binary addition of touch potential is counted, and the output end of non-self-lock-ing button is also by prolonging When circuit trigger data-latching circuit output, the output end of two d type flip flops of double D flip-flop numbers modules is all connected with the number According to the data input pin of latch cicuit, a data output end of data-latching circuit connects the first relay by optical coupling isolation circuit Device, the contact of the first relay can make output port OUT1 connect photovoltaic interface P1 chargings, another data of data-latching circuit Output end connects the second relay by optical coupling isolation circuit, and the contact of the second relay can make output port connect commercial power interface P2 charges, and the output end level of described pair of two d type flip flops of D flip-flop number modules can make output port OUT1 individually connect light One of volt interface, commercial power interface charge and connection photovoltaic interface, commercial power interface charge simultaneously, and the light under shutdown mode Volt interface, commercial power interface do not charge to output port；

Being connected between the photovoltaic interface P1 and output port prevents the first diode of electric current reversely charging, the commercial power interface P2 Being connected with and output port between prevents the second diode of electric current reversely charging, when photovoltaic interface P1 and commercial power interface P2 is simultaneously defeated When exit port charges, the first diode can prevent commercial power charged its current flowing backwards when accounting for main to photovoltaic interface, the two or two pole Pipe can prevent photovoltaic charged its current flowing backwards when accounting for main to commercial power interface, so as to prevent photo-voltaic power supply or mains supply from damaging It is bad.

2. battery photovoltaic commercial power complementary combinations Logic control module as claimed in claim 1, it is characterised in that：Described couple of D Flip-flop number module include cascade the first d type flip flop and the second d type flip flop, the first d type flip flop clock end connection described in press The output end of key Anti-shaking circuit, the D ends of the first d type flip flop connect its inverse output terminal, and it is anti-that the D ends of the second d type flip flop connect its To output end, the inverse output terminal of the first trigger connects the D ends of the second d type flip flop, and then constitute asynchronous clock two enter Plus coujnt module processed, wherein the second trigger is exported for high-order, the first trigger is exported for low level；

The described pair of inverse output terminal connection of the inverse output terminal and the second d type flip flop of the first d type flip flop of D flip-flop number modules The data-latching circuit, a data output end IN0_out of data-latching circuit passes through optical coupling isolation circuit and the poles of PNP tri- Pipe Q1 connect the first relay, when data-latching circuit data output end IN0_out export low level when, by optocoupler every PNP triode Q1 is turned on from circuit, electricity on the first relay, the normally opened contact closure of the first relay makes output port OUT1 connection photovoltaic interfaces P1 charges；

Another data output end IN1_out of data-latching circuit connects second by optical coupling isolation circuit and PNP triode Q2 Relay, when the data output end IN1_out of data-latching circuit exports low level, PNP is made by optical coupling isolation circuit Triode Q2 is turned on, electricity on the second relay, the normally opened contact closure of the second relay, output port OUT1 is connected civil power and is connect Mouth P2 charges；

When the data output end IN0_out and data output end IN1_out of data-latching circuit U7 export low level, can See, it can simultaneously drive electricity on the first relay and the second relay, make photovoltaic interface P1 and commercial power interface P2 be simultaneously defeated Exit port OUT1 powers；

When the data output end IN0_out and data output end IN1_out of data-latching circuit U7 export high level, this is Shutdown mode, photovoltaic interface and commercial power interface be not for output port OUT1 powers.

3. battery photovoltaic commercial power complementary combinations Logic control module as claimed in claim 1, it is characterised in that：Described couple of D First d type flip flop of trigger and the positive output end connection decoder of the second d type flip flop, the first d type flip flop connection decoder Low level input, the second d type flip flop connects the high-order input of decoder, and the decoder changes into the binary code of input The decimal system, and by numeral method, the touch potential of non-self-lock-ing button thus can be shown.

4. the battery photovoltaic commercial power complementary combinations Logic control module as described in one of claim 1-3, it is characterised in that：Institute Non-self-lock-ing button is stated for double-point double-throw switch S1, a plug-in strip of double-point double-throw switch S1 connects the input of button Anti-shaking circuit End, another plug-in strip of double-point double-throw switch S1 connects the triggering end of delay circuit, and two plug-in strips linkage of double-point double-throw switch is double The non-keying end ground connection of double-pole double throw switch S1；

The button Anti-shaking circuit is rest-set flip-flop Anti-shaking circuit, and the rest-set flip-flop Anti-shaking circuit connects structure by two NAND gates After pressing and unclamp into, the double-point double-throw switch S1, the output end of rest-set flip-flop Anti-shaking circuit passes through rising edge level triggers Described pair of D flip-flop numbers module is started working, and the first d type flip flop of double D flip-flop numbers modules, the second d type flip flop are rising Along level triggers；

The delay circuit uses 555 delay trigger circuits, and it is low level triggering trigger, until non-self-lock-ing button unclamps After high level afterwards makes charging capacitor C13 charge to certain voltage, the output end of 555 delay trigger circuits just exports low level, With trigger data latch cicuit output data, the delay time of 555 delay trigger circuits can adjust its charging capacitor C13 and adjustable Resistance R7 is realized.

5. battery photovoltaic commercial power complementary combinations Logic control module as claimed in claim 1, it is characterised in that：The time delay Circuit uses chip NE555, data-latching circuit to use chip 74HC573, double D trigger to use chip 74LS74, decoder Using chip 74LS47.