CN106816949A - 12V batteries photovoltaic commercial power complementation charge and discharge maintenance device - Google Patents

12V batteries photovoltaic commercial power complementation charge and discharge maintenance device Download PDF

Info

Publication number
CN106816949A
CN106816949A CN201610982974.3A CN201610982974A CN106816949A CN 106816949 A CN106816949 A CN 106816949A CN 201610982974 A CN201610982974 A CN 201610982974A CN 106816949 A CN106816949 A CN 106816949A
Authority
CN
China
Prior art keywords
voltage
battery
charging
flop
discharge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610982974.3A
Other languages
Chinese (zh)
Other versions
CN106816949B (en
Inventor
廖东进
李�根
吕舟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Quzhou Lixin Technology Consulting Co ltd
Original Assignee
Quzhou College of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Quzhou College of Technology filed Critical Quzhou College of Technology
Priority to CN201610982974.3A priority Critical patent/CN106816949B/en
Publication of CN106816949A publication Critical patent/CN106816949A/en
Application granted granted Critical
Publication of CN106816949B publication Critical patent/CN106816949B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering with light sensitive cells
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for batteries
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

12V蓄电池光伏市电互补充放电维护装置，包括光伏市电互补组合逻辑控制模块、蓄电池充放电比较控制模块，通过设定R1、R2的比值、R3和R4的比值、第一、第二基准电压的数值，当蓄电池的端电压达到过充关断电压时，第一电压迟滞比较器通过第三继电器断开对蓄电池的充电，此过充关断状态一直维持到蓄电池的端电压达到充电关断恢复电压，达到充电关断恢复电压则恢复对蓄电池的充电，当蓄电池的端电压达到过放关断电压时，第二电压迟滞比较器通过第四继电器断开对负载的放电，此过放关断状态一直维持到蓄电池的端电压达到放电关断恢复电压。本发明可以自动检测蓄电池所处状态，并进行自动充放电和关断控制、以及关断恢复控制。

12V storage battery photovoltaic mains mutual supplementary discharge maintenance device, including photovoltaic mains complementary combination logic control module, battery charge and discharge comparison control module, by setting the ratio of R1 and R2, the ratio of R3 and R4, the first and second reference voltages When the terminal voltage of the battery reaches the overcharge shutdown voltage, the first voltage hysteresis comparator cuts off the charging of the battery through the third relay, and the overcharge shutdown state is maintained until the terminal voltage of the battery reaches the charging shutdown voltage. When the recovery voltage reaches the charging shutdown recovery voltage, the charging of the battery is resumed. When the terminal voltage of the battery reaches the over-discharge cut-off voltage, the second voltage hysteresis comparator cuts off the discharge of the load through the fourth relay. The off state is maintained until the terminal voltage of the battery reaches the discharge shutdown recovery voltage. The invention can automatically detect the state of the storage battery, and perform automatic charging and discharging, shutdown control, and shutdown recovery control.

Description

12V batteries photovoltaic commercial power complementation charge and discharge maintenance device
Technical field
It is the photovoltaic commercial power complementation charge and discharge maintenance device of the battery of 12V the present invention relates to a kind of nominal voltage.
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.
The content of the invention
The present invention is for above shortcomings in the prior art, there is provided a kind of 12V batteries photovoltaic commercial power complementation charge and discharge Electric attending device, can detect that nominal voltage is the battery status of 12V, and carry out auto charge and discharge and shut-off control, Make the voltage of battery steady in a long-term in more normal scope.
In order to solve the above-mentioned technical problem, the present invention uses following technical scheme：
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 a non-self-lock-ing button, and non-self-lock-ing button passes through double D and touches Hair counting module realizes that the binary addition of touch potential is counted, and the output end of non-self-lock-ing button also triggers one by delay circuit 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, the first relay by optical coupling isolation circuit The contact of device can make output port OUT1 connect photovoltaic interface P1 chargings, and another data output end of data-latching circuit passes through light Coupling isolation circuit connects the 3rd relay, and the contact of the 3rd relay can make output port OUT1 connect commercial power interface P2 chargings, 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 interface, One of commercial power interface charge and simultaneously connection photovoltaic interface, commercial power interface charge, and under shutdown mode photovoltaic interface, Commercial power interface does 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；
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 and second voltage hysteresis comparator, the input in the same direction of first voltage hysteresis comparator connects electric power storage by first resistor R1 The anode in pond, is connected with the first feedback resistance R2 between its input in the same direction and output end, its reverse input end connects the first base Quasi- voltage VR1, the input in the same direction of second voltage hysteresis comparator connects the anode of battery by 3rd resistor R3, and its is in the same direction The second feedback resistance R4 is connected between input and output end, its reverse input end connects the second reference voltage VR2；First electricity The output end of hysteresis comparator is pressed to connect the 3rd relay by PNP triode, charging indicator light is connected in parallel on the 3rd relay Magnet coil two ends, the normally-closed contact connection of the 3rd relay is connected in parallel on output port OUT1 two ends after overcharging shut-off indicator lamp, Its normally opened contact is connected to output port OUT1 on the charge circuit of battery；The output end of second voltage hysteresis comparator is led to Cross PNP triode and connect the 4th relay, cross and put shut-off indicator lamp and be connected in parallel on the magnet coil two ends of the 4th relay, the 4th after The normally-closed contact of electrical equipment is connected to battery on the discharge loop of load, discharge indicating lamp connects the normally closed of the 4th relay and touches The two ends of battery are connected in parallel on after point；
The voltage limit of visiting of first voltage hysteresis comparatorLower threshold voltageWherein VR1It is above-mentioned first reference voltage, VZIt is the voltage stabilizing value of output end voltage-regulator diode, Make the voltage limit V that visitsp1=cross charge shutoff voltage, lower threshold voltage Vp2=shut-off of charging recovers voltage, then can calculate first The ratio and the first required reference voltage V of resistance R1 and the first feedback resistance R2R1Numerical value；
Similarly, the voltage limit of visiting of second voltage hysteresis comparatorLower threshold voltageWherein VR2It is above-mentioned second reference voltage, VZIt is the voltage stabilizing value of output end voltage-regulator diode, Make the voltage limit V that visitsp1=electric discharge shut-off recovers voltage, lower threshold voltage Vp2=cross and put shut-off voltage, then can calculate the 3rd The ratio and the second required reference voltage V of resistance R3 and the second feedback resistance R4R2Numerical value；
Then, when the terminal voltage of battery rose to charge shutoff voltage, first voltage hysteresis comparator overturns Output high level, it passes through the charging of PNP triode and the disconnection of the 3rd relay to battery, now overcharges shut-off indicator lamp point It is bright, this overcharge off state be maintained to battery terminal voltage reach charging shut-off recover voltage, reach charging shut-off it is extensive Complex voltage then first voltage hysteresis comparator low level, connects the charging to battery, and now charging indicator light is lighted；Work as electric power storage The terminal voltage in pond was dropped to when putting shut-off voltage, second voltage hysteresis comparator upset output low level, and it passes through the poles of PNP tri- Pipe and the 4th relay disconnect battery to load electric discharge, now cross put shut-off indicator lamp light, this crosses and puts off state one Straight to maintain the terminal voltage to battery to reach the shut-off recovery voltage that discharges, then second voltage is sluggish to reach electric discharge shut-off recovery voltage Comparator upset is high level, connects the electric discharge to battery, and now discharge indicating lamp is lighted.
Further, by the first adjustable DC electric power generating composition, the second reference voltage can by second for first reference voltage Tuning DC electric power generating composition；Accumulator cell charging and discharging compares control module and accessed between output port OUT1 and battery prevents electric current The diode D0 of reversely charging, prevents battery from being discharged to output port OUT1.
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.
Further, also including battery tension collection and display module, battery tension collection is used with display module A/D conversion chip ICL7107, its two ends that battery is connected by voltage collection circuit, the sampled point of voltage sampling circuit is connected The high-order input of ICL7107 is connect, the output end of the ICL7107 directly drives four LED charactrons, by setting decimal point Position, makes indication range be ± 19.99, is capable of achieving nominal voltage for the terminal voltage of the battery of 12V shows, ICL7107 and LED numbers Code pipe constitutes digital voltmeter.
Preferably, the battery cross charge shutoff voltage be 14.1~14.5V, charge shut-off recover voltage be 13.1~ 13.5V, it is 10.8~12V to cross and put shut-off voltage, and it is 11.5~12V that electric discharge shut-off recovers voltage.
Preferably, the PNP triode is the compound transistor of positive-negative-positive, and it is made up of two PNP triode cascades, when When input is low level, the compound transistor conducting of positive-negative-positive, when input is high level, the compound transistor of positive-negative-positive cuts Only.
Preferably, the charge shutoff voltage of crossing of the battery is 14.5V, and it is 13.5V that shut-off of charging recovers voltage, crosses and puts pass Power-off pressure is 11V, and it is 12V that electric discharge shut-off recovers voltage.
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 invention are as follows：(1) battery status that can be with automatic detection nominal voltage as 12V, thus Carry out auto charge and discharge and overcharge shut-off control, cross to put shut-off control and charge with turning off and recover control, electric discharge shut-off recovery control System, makes the voltage of battery steady in a long-term in more normal scope, can improve the operating efficiency of battery and use the longevity Life；User turns off and recovers, high degree of automation without the discharge and recharge for controlling battery manually according to the terminal voltage of battery；
(2) the output end level of two d type flip flops of double D flip-flop numbers modules makes output port OUT1 individually connect photovoltaic One of interface, commercial power interface charge and connection photovoltaic interface, commercial power interface charge simultaneously, and the photovoltaic under shutdown mode Interface, commercial power interface do not charge to output port OUT1；Meet the developing direction of renewable new energy, with energy-conserving and environment-protective Advantage.
Brief description of the drawings
Fig. 1 is one of circuit diagram of photovoltaic commercial power complementary combinations Logic control module of the invention.
Fig. 2 is the two of the circuit diagram of photovoltaic commercial power complementary combinations Logic control module of the invention.
Fig. 3 is the three of the circuit diagram of photovoltaic commercial power complementary combinations Logic control module of the invention.
Fig. 4 is the four of the circuit diagram of photovoltaic commercial power complementary combinations Logic control module of the invention.
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 present invention is described in further detail with embodiment below in conjunction with the accompanying drawings, it will be appreciated that implementation described herein Example is only used for illustrating embodiments of the present invention, is not construed as limiting the invention.
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 can carry Show 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 VR1, 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 VR2, 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 VR1It is above-mentioned first reference voltage, VZIt is the voltage stabilizing value of voltage-regulator diode ZD1, in order Threshold voltage Vp1=cross charge shutoff voltage 14.5V, lower threshold voltage Vp2=shut-off of charging recovers voltage 13.5, then can calculate Go out the ratio and the first required reference voltage V of first resistor R1 and the first feedback resistance R2R1Numerical 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 VR2It is above-mentioned second reference voltage, VZIt is the voltage stabilizing value of voltage-regulator diode ZD2, in order Threshold voltage Vp1=electric discharge shut-off recovers voltage 12V, lower threshold voltage Vp2=cross and put shut-off voltage 11V, then can calculate the The ratio and the second required reference voltage V of three resistance R3 and the second feedback resistance R4R2Numerical 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.Wherein, BT+ connects the anode of battery.
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 (10)

1.12V蓄电池光伏市电互补充放电维护装置，其特征在于：包括电源模块、光伏市电互补组合逻辑控制模块、以及蓄电池充放电比较控制模块，蓄电池的标称电压为12V；1. 12V battery photovoltaic mains complementary discharge maintenance device, characterized in that it includes a power supply module, a photovoltaic mains complementary combination logic control module, and a battery charge and discharge comparison control module, and the nominal voltage of the battery is 12V; 所述光伏市电互补组合逻辑控制模块包括一非自锁按键，非自锁按键通过双D触发计数模块实现按键次数的二进制加法计数，非自锁按键的输出端还通过延时电路触发一数据锁存电路输出，双D触发计数模块的两个D触发器的输出端均连接所述数据锁存电路的数据输入端，数据锁存电路的一数据输出端通过光耦隔离电路连接第一继电器，第一继电器的触点可使输出端口OUT1连接光伏接口P1充电，数据锁存电路的另一数据输出端通过光耦隔离电路连接第二继电器，第二继电器的触点可使输出端口OUT1连接市电接口P2充电，所述双D触发计数模块的两个D触发器的输出端电平可使输出端口OUT1单独连接光伏接口、市电接口之一充电以及同时连接光伏接口、市电接口充电，以及处于停机模式下光伏接口、市电接口均不对输出端口充电；The photovoltaic mains complementary combination logic control module includes a non-self-locking button, the non-self-locking button realizes the binary addition counting of the number of buttons through the double D trigger counting module, and the output end of the non-self-locking button also triggers a data through a delay circuit The output of the latch circuit, the output ends of the two D flip-flops of the double D trigger counting module are connected to the data input end of the data latch circuit, and a data output end of the data latch circuit is connected to the first relay through an optocoupler isolation circuit , the contact of the first relay can connect the output port OUT1 to the photovoltaic interface P1 for charging, the other data output end of the data latch circuit is connected to the second relay through the optocoupler isolation circuit, and the contact of the second relay can connect the output port OUT1 to The mains interface P2 is charged, and the output levels of the two D flip-flops of the double-D trigger counting module can make the output port OUT1 separately connected to the photovoltaic interface and one of the mains interfaces for charging, and simultaneously connected to the photovoltaic interface and the mains interface for charging , and in the shutdown mode, neither the photovoltaic interface nor the mains interface will charge the output port; 所述光伏接口P1和输出端口之间连接有防止电流反充的第一二极管，所述市电接口P2和输出端口之间连接有防止电流反充的第二二极管，当光伏接口P1和市电接口P2同时为输出端口充电时，第一二极管可以防止市电充电占主要时其电流反灌至光伏接口，第二二极管可以防止光伏充电占主要时其电流反灌至市电接口，从而防止光伏电源或市电电源损坏；A first diode to prevent current reverse charging is connected between the photovoltaic interface P1 and the output port, and a second diode to prevent current reverse charging is connected between the mains interface P2 and the output port. When P1 and the mains interface P2 are charging the output port at the same time, the first diode can prevent the current from being fed back to the photovoltaic interface when the mains charging is dominant, and the second diode can prevent the current from being fed back when the photovoltaic charging is dominant. To the mains power interface, so as to prevent the photovoltaic power supply or the mains power supply from being damaged; 所述蓄电池充放电比较控制模块包括为同相电压迟滞比较器的第一电压迟滞比较器和第二电压迟滞比较器，第一电压迟滞比较器的同向输入端通过第一电阻R1连接蓄电池的正端，其同向输入端和输出端之间连接有第一反馈电阻R2，其反向输入端连接第一基准电压VR1，第二电压迟滞比较器的同向输入端通过第三电阻R3连接蓄电池的正端，其同向输入端和输出端之间连接有第二反馈电阻R4，其反向输入端连接第二基准电压VR2；第一电压迟滞比较器的输出端通过PNP三极管连接第三继电器，充电指示灯并联在第三继电器的电磁线圈两端，第三继电器的常闭触点连接过充关断指示灯后并联在输出端口OUT1两端，其常开触点连接在输出端口OUT1对蓄电池的充电回路上；第二电压迟滞比较器的输出端通过PNP三极管连接第四继电器，过放关断指示灯并联在第四继电器的电磁线圈两端，第四继电器的常闭触点连接在蓄电池对负载的放电回路上，放电指示灯连接第四继电器的常闭触点后并联在蓄电池的两端；The battery charge and discharge comparison control module includes a first voltage hysteresis comparator and a second voltage hysteresis comparator which are non-inverting voltage hysteresis comparators, and the non-inverting input terminal of the first voltage hysteresis comparator is connected to the positive voltage of the storage battery through the first resistor R1. terminal, the first feedback resistor R2 is connected between its non-inverting input terminal and output terminal, its inverting input terminal is connected to the first reference voltage V R1 , and the non-inverting input terminal of the second voltage hysteresis comparator is connected through the third resistor R3 The positive end of the storage battery is connected with the second feedback resistor R4 between its input end and output end in the same direction, and its inverting input end is connected with the second reference voltage V R2 ; the output end of the first voltage hysteresis comparator is connected with the first voltage through a PNP transistor. Three relays, the charging indicator light is connected in parallel to both ends of the electromagnetic coil of the third relay, the normally closed contact of the third relay is connected to the overcharge shutdown indicator light and then connected in parallel to both ends of the output port OUT1, and its normally open contact is connected to the output port OUT1 is on the charging circuit of the battery; the output terminal of the second voltage hysteresis comparator is connected to the fourth relay through the PNP transistor, the over-discharge shutdown indicator is connected in parallel at both ends of the electromagnetic coil of the fourth relay, and the normally closed contact of the fourth relay Connected to the discharge circuit of the battery to the load, the discharge indicator is connected to the normally closed contact of the fourth relay and connected in parallel to both ends of the battery; 第一电压迟滞比较器的上门限电压下门限电压其中VR1为上述第一基准电压，VZ为输出端稳压二极管的稳压值，令上门限电压Vp1＝过充关断电压，下门限电压Vp2＝充电关断恢复电压，则可以计算出第一电阻R1和第一反馈电阻R2的比值以及所需的第一基准电压VR1的数值；The upper threshold voltage of the first voltage hysteresis comparator lower threshold voltage Where VR1 is the above-mentioned first reference voltage, V Z is the regulated voltage value of the Zener diode at the output terminal, if the upper threshold voltage V p1 = the overcharge shutdown voltage, and the lower threshold voltage V p2 = the charging shutdown recovery voltage, then it can be Calculate the ratio of the first resistor R1 to the first feedback resistor R2 and the required value of the first reference voltage V R1 ; 同理，第二电压迟滞比较器的上门限电压下门限电压其中VR2为上述第二基准电压，VZ为输出端稳压二极管的稳压值，令上门限电压Vp1＝放电关断恢复电压，下门限电压Vp2＝过放关断电压，则可以计算出第三电阻R3和第二反馈电阻R4的比值以及所需的第二基准电压VR2的数值；Similarly, the upper threshold voltage of the second voltage hysteresis comparator lower threshold voltage Where VR2 is the second reference voltage above, V Z is the regulated voltage value of the Zener diode at the output terminal, if the upper threshold voltage V p1 = the discharge shutdown recovery voltage, and the lower threshold voltage V p2 = the over-discharge shutdown voltage, then it can be Calculate the ratio between the third resistor R3 and the second feedback resistor R4 and the required value of the second reference voltage V R2 ; 于是，当蓄电池的端电压上升至过充关断电压时，第一电压迟滞比较器发生翻转输出高电平，其通过PNP三极管和第三继电器断开对蓄电池的充电，此时过充关断指示灯点亮，此过充关断状态一直维持到蓄电池的端电压达到充电关断恢复电压，达到充电关断恢复电压则第一电压迟滞比较器翻转为低电平，接通对蓄电池的充电，此时充电指示灯点亮；当蓄电池的端电压下降至过放关断电压时，第二电压迟滞比较器翻转输出低电平，其通过PNP三极管和第四继电器断开蓄电池对负载的放电，此时过放关断指示灯点亮，此过放关断状态一直维持到蓄电池的端电压达到放电关断恢复电压，达到放电关断恢复电压则第二电压迟滞比较器翻转为高电平，接通对蓄电池的放电，此时放电指示灯点亮。Therefore, when the terminal voltage of the battery rises to the overcharge cut-off voltage, the first voltage hysteresis comparator flips and outputs a high level, which disconnects the charging of the battery through the PNP transistor and the third relay, and the overcharge is turned off at this time The indicator light is on, and the overcharge shutdown state is maintained until the terminal voltage of the battery reaches the charging shutdown recovery voltage. When the charging shutdown recovery voltage is reached, the first voltage hysteresis comparator flips to a low level, and the charging of the battery is turned on. , at this time the charging indicator light is on; when the terminal voltage of the battery drops to the over-discharge cut-off voltage, the second voltage hysteresis comparator reverses and outputs a low level, which disconnects the battery from discharging to the load through the PNP transistor and the fourth relay , at this time the over-discharge shutdown indicator light is on, and the over-discharge shutdown state is maintained until the terminal voltage of the battery reaches the discharge shutdown recovery voltage. When the discharge shutdown recovery voltage is reached, the second voltage hysteresis comparator flips to a high level , turn on the discharge of the battery, at this time the discharge indicator light is on. 2.如权利要求1所述的12V蓄电池光伏市电互补充放电维护装置，其特征在于：所述第一基准电压由第一可调直流电源构成，第二基准电压由第二可调直流电源构成；蓄电池充放电比较控制模块在输出端口OUT1和蓄电池之间接入防止电流反充的二极管D0，防止蓄电池向输出端口OUT1放电。2. The 12V battery photovoltaic mains mutual supplementary discharge maintenance device as claimed in claim 1, characterized in that: the first reference voltage is formed by the first adjustable DC power supply, and the second reference voltage is formed by the second adjustable DC power supply Composition: The battery charge and discharge comparison control module connects a diode D0 between the output port OUT1 and the battery to prevent current reverse charging, so as to prevent the battery from discharging to the output port OUT1. 3.如权利要求1或2所述的12V蓄电池光伏市电互补充放电维护装置，其特征在于：所述双D触发计数模块包括级联的第一D触发器和第二D触发器，第一D触发器的时钟端连接所述按键防抖电路的输出端，第一D触发器的D端连接其反向输出端，第二D触发器的D端连接其反向输出端，第一触发器的反向输出端连接第二D触发器的D端，于是构成了异步时钟的二进制加法计数模块，其中第二触发器为高位输出，第一触发器为低位输出；3. The 12V storage battery photovoltaic mains mutual supplementary discharge maintenance device according to claim 1 or 2, characterized in that: the double D trigger counting module includes a cascaded first D flip-flop and a second D flip-flop, the second D flip-flop The clock end of a D flip-flop is connected to the output end of the button anti-shake circuit, the D end of the first D flip-flop is connected to its reverse output end, the D end of the second D flip-flop is connected to its reverse output end, and the first D flip-flop is connected to its reverse output end. The reverse output end of the flip-flop is connected to the D end of the second D flip-flop, thus forming a binary addition and counting module of an asynchronous clock, wherein the second flip-flop is a high-order output, and the first flip-flop is a low-order output; 所述双D触发计数模块的第一D触发器的反向输出端和第二D触发器的反向输出端连接所述数据锁存电路，数据锁存电路的一数据输出端IN0_out通过光耦隔离电路以及PNP三极管Q1连接第一继电器，当数据锁存电路的该数据输出端IN0_out输出低电平时，通过光耦隔离电路使PNP三极管Q1导通，第一继电器上电，第一继电器的常开触点闭合，使输出端口OUT1连接光伏接口P1充电；The reverse output terminal of the first D flip-flop and the reverse output terminal of the second D flip-flop of the double D trigger counting module are connected to the data latch circuit, and a data output terminal IN0_out of the data latch circuit is passed through an optocoupler The isolation circuit and the PNP transistor Q1 are connected to the first relay. When the data output terminal IN0_out of the data latch circuit outputs a low level, the PNP transistor Q1 is turned on through the optocoupler isolation circuit, and the first relay is powered on. The open contact is closed, so that the output port OUT1 is connected to the photovoltaic interface P1 for charging; 数据锁存电路的另一数据输出端IN1_out通过光耦隔离电路和PNP三极管Q2连接第二继电器，当数据锁存电路的该数据输出端IN1_out输出低电平时，通过光耦隔离电路使PNP三极管Q2导通，第二继电器上电，第二继电器的常开触点闭合，使输出端口OUT1连接市电接口P2充电；The other data output terminal IN1_out of the data latch circuit is connected to the second relay through the optocoupler isolation circuit and the PNP transistor Q2. When the data output terminal IN1_out of the data latch circuit outputs a low level, the optocoupler isolation circuit makes the PNP transistor Q2 Conduction, the second relay is powered on, the normally open contact of the second relay is closed, so that the output port OUT1 is connected to the mains interface P2 for charging; 当数据锁存电路U7的数据输出端IN0_out和数据输出端IN1_out均输出低电平时，可见，其可以同时驱动第一继电器和第二继电器上电，使光伏接口P1和市电接口P2同时为输出端口OUT1供电；When the data output terminal IN0_out and the data output terminal IN1_out of the data latch circuit U7 both output low level, it can be seen that it can drive the first relay and the second relay to be powered on at the same time, so that the photovoltaic interface P1 and the mains interface P2 are output at the same time Port OUT1 power supply; 当数据锁存电路U7的数据输出端IN0_out和数据输出端IN1_out均输出高电平时，此为停机模式，光伏接口和市电接口均不为输出端口OUT1供电。When both the data output terminals IN0_out and the data output terminals IN1_out of the data latch circuit U7 output high levels, this is a shutdown mode, and neither the photovoltaic interface nor the mains interface supplies power to the output port OUT1. 4.如权利要求1所述的12V蓄电池光伏市电互补充放电维护装置，其特征在于：所述双D触发器的第一D触发器及第二D触发器的正向输出端连接译码器，第一D触发器连接译码器的低位输入端，第二D触发器连接译码器的高位输入端，该译码器将输入的二进制码转化成十进制，并通过数码管显示，由此可显示非自锁按键的按键次数。4. The 12V storage battery photovoltaic mains mutual supplementary discharge maintenance device according to claim 1, characterized in that: the positive output terminals of the first D flip-flop and the second D flip-flop of the double D flip-flop are connected to the decoding The first D flip-flop is connected to the low-order input of the decoder, and the second D flip-flop is connected to the high-order input of the decoder. The decoder converts the input binary code into decimal and displays it through the digital tube. This can display the number of key presses of non-self-locking keys. 5.如权利要求1所述的12V蓄电池光伏市电互补充放电维护装置，其特征在于：还包括蓄电池电压采集与显示模块，蓄电池电压采集与显示模块采用A/D转换芯片ICL7107，其通过电压采集电路连接蓄电池的两端，电压采样电路的采样点连接ICL7107的高位输入端，该ICL7107的输出端直接驱动四个LED数码管，通过设定小数点位，使显示范围为±19.99，可实现标称电压为12V的蓄电池的端电压显示，ICL7107和LED数码管构成数字式电压表。5. The 12V battery photovoltaic mains mutual supplementary discharge maintenance device as claimed in claim 1, characterized in that: it also includes a battery voltage acquisition and display module, the battery voltage acquisition and display module adopts the A/D conversion chip ICL7107, which passes the voltage The acquisition circuit is connected to both ends of the battery, and the sampling point of the voltage sampling circuit is connected to the high-level input terminal of ICL7107. The output terminal of the ICL7107 directly drives four LED digital tubes. By setting the decimal point, the display range is ±19.99, which can realize standard The terminal voltage of the storage battery with a voltage of 12V is displayed, and the ICL7107 and the LED digital tube form a digital voltmeter. 6.如权利要求3所述的12V蓄电池光伏市电互补充放电维护装置，其特征在于：所述非自锁按键为双刀双掷开关S1，双刀双掷开关S1的一个闸刀连接按键防抖电路的输入端，双刀双掷开关S1的另一闸刀连接延时电路的触发端，双刀双掷开关的两个闸刀联动，双刀双掷开关S1的非启闭端接地；6. The 12V battery photovoltaic mains mutual supplementary discharge maintenance device according to claim 3, characterized in that: the non-self-locking button is a double-pole double-throw switch S1, and a switch blade connection button of the double-pole double-throw switch S1 The input end of the anti-shake circuit, the other switch blade of the double-pole double-throw switch S1 is connected to the trigger end of the delay circuit, the two switch blades of the double-pole double-throw switch are linked, and the non-opening and closing end of the double-pole double-throw switch S1 is grounded ; 所述按键防抖电路为RS触发器防抖电路，该RS触发器防抖电路由两个与非门连接构成，所述双刀双掷开关S1按下并松开后，RS触发器防抖电路的输出端通过上升沿电平触发所述双D触发计数模块开始工作，双D触发计数模块的第一D触发器、第二D触发器均为上升沿电平触发；The button anti-shake circuit is an RS flip-flop anti-shake circuit, the RS flip-flop anti-shake circuit is composed of two NAND gates connected, after the double-pole double-throw switch S1 is pressed and released, the RS flip-flop anti-shake The output terminal of the circuit triggers the double-D trigger counting module to start working through the rising edge level, and the first D flip-flop and the second D flip-flop of the double-D trigger counting module are both rising-edge level triggers; 所述延时电路采用555延时触发电路，其为低电平触发开始延时，直至非自锁按键松开后的高电平使充电电容C13充电至一定电压后，555延时触发电路的输出端才输出低电平，以触发数据锁存电路输出数据，555延时触发电路的延时时间可调节其充电电容C13和可调电阻R7实现。The delay circuit adopts a 555 delay trigger circuit, which is a low-level trigger and starts to delay until the high level after the non-self-locking button is released makes the charging capacitor C13 charge to a certain voltage, and the 555 delay trigger circuit The output terminal only outputs low level to trigger the data latch circuit to output data. The delay time of the 555 delay trigger circuit can be realized by adjusting its charging capacitor C13 and adjustable resistor R7. 7.如权利要求2所述的12V蓄电池光伏市电互补充放电维护装置，其特征在于：所述蓄电池的过充关断电压为14.1～14.5V，充电关断恢复电压为13.1～13.5V，过放关断电压为10.8～12V，放电关断恢复电压为11.5～12V。7. The 12V storage battery photovoltaic mains complementary discharge maintenance device according to claim 2, characterized in that: the overcharge shutdown voltage of the storage battery is 14.1-14.5V, and the charging shutdown recovery voltage is 13.1-13.5V, The over-discharge shutdown voltage is 10.8-12V, and the discharge shutdown recovery voltage is 11.5-12V. 8.如权利要求1所述的12V蓄电池光伏市电互补充放电维护装置，其特征在于：所述PNP三极管为PNP型的复合三极管，其由两个PNP三极管级联构成，当输入端为低电平时，PNP型的复合三极管导通，当输入端为高电平时，PNP型的复合三极管截止。8. The 12V storage battery photovoltaic mains mutual supplementary discharge maintenance device as claimed in claim 1, characterized in that: the PNP transistor is a PNP type composite transistor, which is composed of two PNP transistors cascaded, when the input terminal is low When the level is high, the PNP type composite transistor is turned on, and when the input terminal is high level, the PNP type composite transistor is turned off. 9.如权利要求7所述的12V蓄电池光伏市电互补充放电维护装置，其特征在于：所述蓄电池的过充关断电压为14.5V，充电关断恢复电压为13.5V，过放关断电压为11V，放电关断恢复电压为12V。9. The 12V battery photovoltaic mains mutual supplementary discharge maintenance device as claimed in claim 7, characterized in that: the overcharge shutdown voltage of the battery is 14.5V, the charging shutdown recovery voltage is 13.5V, and the overdischarge shutdown voltage is 14.5V. The voltage is 11V, and the discharge shutdown recovery voltage is 12V. 10.如权利要求6所述的12V蓄电池光伏市电互补充放电维护装置，其特征在于：所述延时电路采用芯片NE555，数据锁存电路采用芯片74HC573，双D触发器采用芯片74LS74，译码器采用芯片74LS47。10. The 12V storage battery photovoltaic mains mutual supplementary discharge maintenance device as claimed in claim 6, characterized in that: the delay circuit uses a chip NE555, the data latch circuit uses a chip 74HC573, and the double D flip-flop uses a chip 74LS74. Encoder adopts chip 74LS47.
CN201610982974.3A 2016-11-08 2016-11-08 12V battery photovoltaic mains mutual supplement and discharge maintenance device Active CN106816949B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610982974.3A CN106816949B (en) 2016-11-08 2016-11-08 12V battery photovoltaic mains mutual supplement and discharge maintenance device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610982974.3A CN106816949B (en) 2016-11-08 2016-11-08 12V battery photovoltaic mains mutual supplement and discharge maintenance device

Publications (2)

Publication Number Publication Date
CN106816949A true CN106816949A (en) 2017-06-09
CN106816949B CN106816949B (en) 2023-09-12

Family

ID=59106507

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610982974.3A Active CN106816949B (en) 2016-11-08 2016-11-08 12V battery photovoltaic mains mutual supplement and discharge maintenance device

Country Status (1)

Country Link
CN (1) CN106816949B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108288867A (en) * 2018-03-20 2018-07-17 汽-大众汽车有限公司 A kind of Overdischarge protection device for storage battery and automobile

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5341082A (en) * 1989-03-15 1994-08-23 Lorenzen April D Reverse current flow protector for electricity storage systems
RU2012149308A (en) * 2012-11-19 2014-05-27 Открытое акционерное общество "АВТОВАЗ" (ОАО "АВТОВАЗ") ONBOARD CHARGER
CN203722212U (en) * 2013-12-13 2014-07-16 滨州学院 Storage battery protective system for small-sized wind and light complementary power generation device
CN204334077U (en) * 2015-01-21 2015-05-13 衢州职业技术学院 Adaptive battery charger
CN205141798U (en) * 2015-10-25 2016-04-06 国网天津静海供电有限公司 Automatic change photovoltaic power intelligent management module
CN206517130U (en) * 2016-11-08 2017-09-22 衢州职业技术学院 12V batteries photovoltaic commercial power complementation charge and discharge maintenance device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5341082A (en) * 1989-03-15 1994-08-23 Lorenzen April D Reverse current flow protector for electricity storage systems
RU2012149308A (en) * 2012-11-19 2014-05-27 Открытое акционерное общество "АВТОВАЗ" (ОАО "АВТОВАЗ") ONBOARD CHARGER
CN203722212U (en) * 2013-12-13 2014-07-16 滨州学院 Storage battery protective system for small-sized wind and light complementary power generation device
CN204334077U (en) * 2015-01-21 2015-05-13 衢州职业技术学院 Adaptive battery charger
CN205141798U (en) * 2015-10-25 2016-04-06 国网天津静海供电有限公司 Automatic change photovoltaic power intelligent management module
CN206517130U (en) * 2016-11-08 2017-09-22 衢州职业技术学院 12V batteries photovoltaic commercial power complementation charge and discharge maintenance device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王笃江;廖东进;: "迟滞比较器在蓄电池充电控制电路中的应用" *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108288867A (en) * 2018-03-20 2018-07-17 汽-大众汽车有限公司 A kind of Overdischarge protection device for storage battery and automobile
CN108288867B (en) * 2018-03-20 2024-04-26 一汽-大众汽车有限公司 Over-discharge protection device for storage battery and automobile

Also Published As

Publication number Publication date
CN106816949B (en) 2023-09-12

Similar Documents

Publication Publication Date Title
CN102832669B (en) Intelligent charge-discharge control circuit of battery
CN107834519B (en) Lithium battery protection control ASIC chip system
CN104410139B (en) Automatic power-off circuit and automatic power-off device for full storage battery of storage battery car
CN204967307U (en) Battery measurement control circuit and battery measurement system
CN206517130U (en) 12V batteries photovoltaic commercial power complementation charge and discharge maintenance device
CN205565803U (en) Rechargeable domestic appliance operating voltage switches module
CN206272264U (en) Complementary combined logic control module of battery photovoltaic mains
CN200987080Y (en) Solar energy notebook computer power supply device
CN206283309U (en) A kind of 12V batteries photovoltaic commercial power complementation charge and discharge maintenance device
CN201576950U (en) Vehicle-mounted solar portable power source
CN106816949A (en) 12V batteries photovoltaic commercial power complementation charge and discharge maintenance device
CN110768313A (en) Battery and external part
CN205123301U (en) General type intelligence battery charger
CN209250288U (en) A kind of dual threshold charge-discharge protection circuit
CN106816948B (en) A 12V battery photovoltaic mains mutual supplement and discharge maintenance device
CN203193257U (en) A battery charging protection device
CN106953378A (en) Adaptive photovoltaic mains complementary battery charge and discharge controller
CN204068214U (en) Storage battery connecting line polarity intelligent identification protecting device
CN206619918U (en) Adaptive photovoltaic mains hybrid accumulator cell charging and discharging controller
CN201893587U (en) Solar charging electrical appliance for nickel-hydrogen charging battery or lithium battery
CN209730840U (en) A fast charging and discharging mobile power supply and its system
CN206272270U (en) A 12V storage battery charging and discharging comparison control module
CN206272265U (en) 12V battery charge and discharge comparison control module
CN207835122U (en) A kind of charge and discharge control plate of lithium-sulfur cell
CN205779838U (en) Fan circuit and electric fan

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20241231

Address after: Room 202-1, Area A, Building 1, No. 6 Kaixuan South Road, Kecheng District, Quzhou City, Zhejiang Province, 324002

Patentee after: Quzhou Lixin Technology Consulting Co.,Ltd.

Country or region after: China

Address before: No.18, Jiangyuan Road, West District, Quzhou City, Zhejiang Province

Patentee before: QUZHOU College OF TECHNOLOGY

Country or region before: China