CN102227088B - Multifunctional intelligent charging equipment - Google Patents
Multifunctional intelligent charging equipment Download PDFInfo
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- CN102227088B CN102227088B CN2011101510154A CN201110151015A CN102227088B CN 102227088 B CN102227088 B CN 102227088B CN 2011101510154 A CN2011101510154 A CN 2011101510154A CN 201110151015 A CN201110151015 A CN 201110151015A CN 102227088 B CN102227088 B CN 102227088B
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Abstract
The invention discloses multifunctional intelligent charging equipment, comprising an outer shell, a power wire, a charging terminal, a circuit board and a transformer, wherein the upper part of the upper board face of the outer shell is provided with a voltage range identification display widow of storage batteries, a charging current display window and a charging capacity display window; the lower part of the upper board face of the outer shell is provided with a functional conversion key, a current-increasing key and a current-reducing key; and the circuit board comprises a storage battery polarity identification circuit, a voltage identification circuit, a polarity conversion circuit, a voltage conversion circuit, a charging impulse generating circuit, an energy-saving circuit, an ADC1 (analog to digital converter), an ADC2, an MCU1 (microcomputer unit) and an MCU2. The multifunctional intelligent charging equipment can control charging and identify the polarity and the voltage of the storage battery automatically, carries out adaptability conversion automatically, and realizes short-circuit zero-current protection and APO (automatic power off) after charging is finished as well as has repair and activation functions. The multifunctional intelligent charging equipment can be applied to intelligent charging for various storage batteries widely.
Description
Technical field
The present invention relates to the improvement of intelligent charge equipment; specifically can automatically realize voltage range identification and the polarity identification of storage battery and can in time make adaptive transition, use and have the Multifunctional intelligent charging device of power savings and protection and reparation storage battery function with the storage battery that adapts to multiple charging scope.
Background technology
Along with the raising of environmental requirement, storage battery has become a kind of energy commonly used, but each storage battery will be equipped with corresponding charger, that is to say that a charger can only to the charge in batteries that mates, limit the scope of application of charger.The kind of employed intelligent charger is a lot of in the market; what have has comprised that power conversion, charging are controlled, protective circuit; can be for various charge in batteries; but can't control in real time charging current by detecting battery capacity; in order to finish charging with the highest efficient, more charging process can not be shown in real time.Although some solutions charge to reach the problem of electrical energy saving with the power supply the lowest point, perhaps solve the problem of intelligence clearing with the plug-in card method, perhaps solve the problem of quick charge and over-charge protective with Single-chip Controlling, but by retrieval, be used at present most of charging device of charge in batteries, its positive and negative electrode and the voltage scope of application can not be identified automatically, therefore, if connect anyway, negative pole, will cause the damage of charging device; The adaptive transition of its voltage needs artificial conversion, changes the improper damage that can cause equally charging device or storage battery; Employed short-circuit protection mostly uses fuse protected, and changing fuse wastes time and energy; After being full of, storage battery needs the artificial charging device that turn-offs; Without the function of repairing and activate storage battery.
Summary of the invention
The object of the present invention is to provide and automatically to identify polarity and the voltage of storage battery, and automatically carry out adaptive transition, can realize short circuit zero current protection, be full of rear auto-breaking, and subsidiary the reparation and the Multifunctional intelligent charging device of mobilizing function.
For reaching above purpose, the technical solution adopted in the present invention is: this Multifunctional intelligent charging device, comprise shell body, power line, charging terminal, circuit board and transformer, circuit board is fixed in the shell body, transformer is fixedly mounted on the circuit board, the output of the wire of charging terminal from the circuit board connects, and it is characterized in that: the voltage range identification display window, the charging current display window of storage battery and the charge volume display window of storage battery that are provided with storage battery on the top of the upper face of shell body; Be provided with function conversion key in the bottom of the upper face of shell body, electric current increases key and electric current reduces key; Comprise on the described circuit board that accumulator polarity identification circuit, battery tension identification circuit, accumulator polarity change-over circuit, storage battery voltage conversion circuit, charging pulse produce circuit, energy-saving circuit and modulus conversion chip ADC1, ADC2, single-chip microprocessor MCU 1, MCU2; Described accumulator polarity identification circuit is comprised of photoelectrical coupler V, diode D1 and resistance R 13,1 pin of photoelectrical coupler V connects the P3.7 pin of single-chip microprocessor MCU 2, the 2 pin ground connection of photoelectrical coupler V, 3 pin of photoelectrical coupler V are rectified the utmost point by the A that resistance R 13 connects storage battery, and positive contact corresponding to of rectifier bridge GB2 connects, 4 pin of photoelectrical coupler V connect the B end negative pole of storage battery by diode D1, and connect with the corresponding negative contacts of rectifier bridge GB2; Described battery tension identification circuit, formed by modulus conversion chip ADC2 and resistance R 3, R4, rectifier bridge GB2,1 to 8 pin of modulus conversion chip ADC2 connects the P1.0 pin of single-chip microcomputer MCU2 successively to the P1.7 pin, and the P3.0 pin that meets simultaneously single-chip microcomputer MCU1 is to the P3.7 pin, 9 pin of modulus conversion chip ADC2 connect the positive contact of rectifier bridge GB2 by resistance R 3, and by resistance R 4 ground connection; Described accumulator polarity change-over circuit, by triode VT5, triode VT6, resistance R 11, resistance R 12, diode D6, diode D7, relay J 5 and relay J 6 form, the collector electrode of the collector electrode of triode VT5 and triode VT6 is succeeded respectively a contact of electrical equipment J5 and relay J 6, diode D6 and diode D7 are in parallel with relay J 5 and relay J 6 respectively, the grounded emitter of triode VT5 and triode VT6, the base stage of triode VT5 and triode VT6 connects respectively P2.1 pin and the P2.0 pin of single-chip microcomputer MCU2 by resistance R 11 and resistance R 12, and simultaneously by resistance R 28, resistance R 29 connects the 5V power supply, and another contact of relay J 5 and relay J 6 connects the 12V power supply; Described storage battery voltage conversion circuit, by triode VT2, triode VT3, triode VT4, relay J 2, relay J 3, relay J 4, diode D3, diode D4, diode D5 and resistance R 8, resistance R 9, resistance R 10 forms, the collector electrode of triode VT2, the collector electrode of the collector electrode of triode VT3 and triode VT4 is succeeded respectively electrical equipment J2, a contact of relay J 3 and relay J 4, diode D3, diode D4 and diode D5 respectively with relay J 2, relay J 3 and relay J 4 parallel connections, triode VT2, the grounded emitter of triode VT3 and triode VT4, triode VT2, the base stage of triode VT3 and triode VT4 is respectively by resistance R 8, resistance R 9 and resistance R 10 connect respectively the P2.4 pin of single-chip microcomputer MCU2, P2.3 pin and P2.2 pin, and simultaneously by resistance R 25, resistance R 26 and resistance R 27 connect the 5V power supply, relay J 2, another contact of relay J 3 and relay J 4 connects the 12V power supply; Described charging pulse produces circuit, is comprised of field effect transistor DS2 and resistance R 6, and the grid of field effect transistor DS2 connects the P2.6 pin of single-chip microcomputer MCU2 by resistance R 6, and connects the 5V power supply by the resistance R 23 of drawing from single-chip microprocessor MCU 2 simultaneously; Described energy-saving circuit, formed by triode VT1, relay J 1, diode D2 and resistance R 7, the contact of the collector connecting relay J1 of triode VT1, diode D2 is in parallel with relay J 1, the base stage of triode VT1 connects the P2.5 pin of single-chip microcomputer MCU2 by resistance R 7, and connects the 5V power supply by resistance R 24 simultaneously; The model of described modulus conversion chip ADC1 and ADC2 is AD8032, and the model of described single-chip microprocessor MCU 1 and MCU2 is STC89C52, is produced by Analogdevices company; The model of described photoelectrical coupler V is PC817, is produced by Sharp company.
The present invention also implements by following measure: described electric current increases P3.5 pin and the P3.4 pin that fixed contact that key and electric current reduce key meets respectively single-chip microcomputer MCU2; The model of described single-chip microprocessor MCU 2 is STC89C52.
The voltage display circuit of described storage battery is comprised of charactron LED1, charactron LED2, resistance R 31, resistance R 32, triode VT7, triode VT8, the P0.0 pin that charactron LED1 and charactron LED2 section are selected termination single-chip microprocessor MCU 1 is to the P0.7 pin, and position choosing end connects respectively the collector electrode of triode VT7, triode VT8; The current display circuit of storage battery is comprised of charactron LED3, charactron LED4, resistance R 33, resistance R 34, triode VT9, triode VT10, the P0.0 pin that the section of charactron LED3 and charactron LED4 is selected termination single-chip microprocessor MCU 1 is to the P0.7 pin, and position choosing end connects respectively the collector electrode of triode VT9 triode VT10; The electric quantity display circuit of storage battery is comprised of charactron LED5, charactron LED6, resistance R 35, resistance R 36, triode VT11, triode VT12, the P0.0 pin that the section of charactron LED5 and charactron LED6 is selected termination single-chip microprocessor MCU 1 is to the P0.7 pin, and position choosing end connects respectively the collector electrode of triode VT11 triode VT12.
Discharge circuit is comprised of field effect transistor DS1, resistance R 5, resistance wire R1, the drain electrode connecting resistance silk R1 of field effect transistor DS1, source ground; The grid of field effect transistor DS1 connects the P2.7 pin of single-chip microcomputer MCU1 by resistance R 5.
In order to reduce charging temperature, in shell body, also be provided with radiator fan.
Like this, in the present invention, can pass through accumulator polarity identification circuit and accumulator polarity change-over circuit, realization is identified the positive and negative electrode of storage battery, and carry out correspondence conversion, when the positive and negative electrode that storage battery occurs and the positive and negative electrode of power supply connect inverse time, can automatically change, thereby normally charge for storage battery, simultaneously, when not connecing storage battery, battery tension identification circuit and accumulator polarity identification circuit no signal, therefore the load-side Non voltage output, though with the load-side short circuit also without short circuit current, so can not cause the damage of charging device; By battery tension identification circuit and storage battery voltage conversion circuit, realize the voltage range of storage battery is identified automatically, and carry out adaptive transition.The present invention connects the 220V civil power, arrives the control circuit upper end by transformer, rectification circuit.During charging, the P2.6 pin of single-chip microprocessor MCU 2 will produce the square-wave pulse of Millisecond, and then field effect transistor is understood periodically break-make, and namely charging pulse to improve charge efficiency, can be regulated the size that charge pulse duty cycle is regulated charging current.Charging accumulator removes the edge-on i.e. outage of back loading, restPoses.When storage battery is filled, the electric quantity detecting circuit of storage battery is sent signal into single-chip microprocessor MCU 2, entered before this floating charge state, then single-chip microprocessor MCU 2 makes energy-saving circuit cut off the charging device power supply fully, and charging device can be charge in batteries again after battery tension drops to certain value.In addition, the present invention also is attached with the function of repairing and activating storage battery, mainly contains to discharge and recharge to realize, presses function conversion key, can automatically repair storage battery, single-chip microprocessor MCU 2 charges a battery first, when electric weight is full of, and single-chip microprocessor MCU 2 controlled discharge circuit workings, behind the discharge off, can charge a battery again, carry out like this 2-3 circulation, can reach the purpose that activates and repair storage battery.
Beneficial effect of the present invention is: with at present the intelligent charge equipment of charge in batteries is compared; can not only automatically control charging; and can automatically identify polarity and the voltage of storage battery; and automatically carry out adaptive transition, can realize the protection of short circuit zero current, be full of rear auto-breaking, also attach and repair and mobilizing function.Can be widely used in the energy intelligent charge of multiple storage battery.
Description of drawings
Fig. 1 is that schematic diagram cuts open in the structure master of the present invention office of looking.
Fig. 2 is electrical schematic diagram of the present invention.
Among the figure: 1, shell body; 2, power line; 3, charging terminal; 4, circuit board; 5, transformer; 6, the voltage range of storage battery identification display window; 7, the charging current display window of storage battery; 8, the charge volume display window of storage battery; 9, discharge circuit; 10, accumulator polarity identification circuit; 11, battery tension identification circuit; 12, accumulator polarity change-over circuit; 13, storage battery voltage conversion circuit; 14, charging pulse produces circuit; 15, energy-saving circuit; 16, the voltage display circuit of storage battery; 17, the current display circuit of storage battery; 18, the electric quantity display circuit of storage battery; 19, function conversion key; 20, electric current increases key; 21, electric current reduces key.
Embodiment
The invention will be further described with reference to Fig. 1, Fig. 2.This Multifunctional intelligent charging device, comprise shell body 1, power line 2, charging terminal 3, circuit board 4 and transformer 5, circuit board 4 is fixed in the shell body 1, transformer 5 is fixedly mounted on the circuit board 4, the wire of charging terminal 3 connects from the output on the circuit board 4, it is characterized in that: the voltage range identification display window 6 that is provided with storage battery on the top of the upper face of shell body 1, the charging current display window 7 of storage battery and the charge volume display window 8 of storage battery, voltage range identification display window 6 by storage battery can observe fill the allowed band that the voltage of storage battery fills, the current current value that fills can be observed by the charging current display window 7 of storage battery, the current electric weight that fills can be observed by the charge volume display window 8 of storage battery; Be provided with function conversion key 19 in the bottom of the upper face of shell body 1, electric current increases key 20 and electric current reduces key 21; Comprise on the described circuit board 4 that accumulator polarity identification circuit 10, battery tension identification circuit 11, accumulator polarity change-over circuit 12, storage battery voltage conversion circuit 13, charging pulse produce circuit 14, energy-saving circuit 15 and modulus conversion chip ADC1, ADC2, single-chip microprocessor MCU 1, MCU2; Described accumulator polarity identification circuit 10 is comprised of photoelectrical coupler V, diode D1 and resistance R 13,1 pin of photoelectrical coupler V connects the P3.7 pin of single-chip microprocessor MCU 2, the 2 pin ground connection of photoelectrical coupler V, 3 pin of photoelectrical coupler V are rectified the utmost point by the A that resistance R 13 connects storage battery, and positive contact corresponding to of rectifier bridge GB2 connects, 4 pin of photoelectrical coupler V connect the B end negative pole of storage battery by diode D1, and connect with the corresponding negative contacts of rectifier bridge GB2; Described battery tension identification circuit 11, formed by modulus conversion chip ADC2 and resistance R 3, R4, rectifier bridge GB2,1 to 8 pin of modulus conversion chip ADC2 connects the P1.0 pin of single-chip microcomputer MCU2 successively to the P1.7 pin, and the P3.0 pin that meets simultaneously single-chip microcomputer MCU1 is to the P3.7 pin, 9 pin of modulus conversion chip ADC2 connect the positive contact of rectifier bridge GB2 by resistance R 3, and by resistance R 4 ground connection; Described accumulator polarity change-over circuit 12, by triode VT5, triode VT6, resistance R 11, resistance R 12, diode D6, diode D7, relay J 5 and relay J 6 form, the collector electrode of the collector electrode of triode VT5 and triode VT6 is succeeded respectively a contact of electrical equipment J5 and relay J 6, diode D6 and diode D7 are in parallel with relay J 5 and relay J 6 respectively, the grounded emitter of triode VT5 and triode VT6, the base stage of triode VT5 and triode VT6 connects respectively P2.1 pin and the P2.0 pin of single-chip microcomputer MCU2 by resistance R 11 and resistance R 12, and simultaneously by resistance R 28, resistance R 29 connects the 5V power supply, and another contact of relay J 5 and relay J 6 connects the 12V power supply; Described storage battery voltage conversion circuit 13, by triode VT2, triode VT3, triode VT4, relay J 2, relay J 3, relay J 4, diode D3, diode D4, diode D5 and resistance R 8, resistance R 9, resistance R 10 forms, the collector electrode of triode VT2, the collector electrode of the collector electrode of triode VT3 and triode VT4 is succeeded respectively electrical equipment J2, a contact of relay J 3 and relay J 4, diode D3, diode D4 and diode D5 respectively with relay J 2, relay J 3 and relay J 4 parallel connections, triode VT2, the grounded emitter of triode VT3 and triode VT4, triode VT2, the base stage of triode VT3 and triode VT4 is respectively by resistance R 8, resistance R 9 and resistance R 10 connect respectively the P2.4 pin of single-chip microcomputer MCU2, P2.3 pin and P2.2 pin, and simultaneously by resistance R 25, resistance R 26 and resistance R 27 connect the 5V power supply, relay J 2, another contact of relay J 3 and relay J 4 connects the 12V power supply; Described charging pulse produces circuit 14, is comprised of field effect transistor DS2 and resistance R 6, and the grid of field effect transistor DS2 connects the P2.6 pin of single-chip microcomputer MCU2 by resistance R 6, and connects the 5V power supply by the resistance R 23 of drawing from single-chip microprocessor MCU 2 simultaneously; Described energy-saving circuit 15, formed by triode VT1, relay J 1, diode D2 and resistance R 7, the contact of the collector connecting relay J1 of triode VT1, diode D2 is in parallel with relay J 1, the base stage of triode VT1 connects the P2.5 pin of single-chip microcomputer MCU2 by resistance R 7, and connects the 5V power supply by resistance R 24 simultaneously; The model of described modulus conversion chip ADC1 and ADC2 is AD8032, and the model of described single-chip microprocessor MCU 1 and MCU2 is STC89C52, is produced by Analogdevices company; The model of described photoelectrical coupler V is PC817, is produced by Sharp company.
The present invention also implements by following measure: described electric current increases P3.5 pin and the P3.4 pin that fixed contact that key 20 and electric current reduce key 21 meets respectively single-chip microcomputer MCU2, press electric current and increase the increase of key 20 electric currents, press electric current and reduce key 21 electric currents and reduce, thereby realize the adjusting of electric current; The model of described single-chip microprocessor MCU 2 is STC89C52.
The voltage display circuit 16 of described storage battery is comprised of charactron LED1, charactron LED2, resistance R 31, resistance R 32, triode VT7, triode VT8, the P0.0 pin that charactron LED1 and charactron LED2 section are selected termination single-chip microprocessor MCU 1 is to the P0.7 pin, and position choosing end connects respectively the collector electrode of triode VT7, triode VT8; The current display circuit 17 of storage battery is comprised of charactron LED3, charactron LED4, resistance R 33, resistance R 34, triode VT9, triode VT10, the P0.0 pin that the section of charactron LED3 and charactron LED4 is selected termination single-chip microprocessor MCU 1 is to the P0.7 pin, and position choosing end connects respectively the collector electrode of triode VT9 triode VT10; The electric quantity display circuit 18 of storage battery is comprised of charactron LED5, charactron LED6, resistance R 35, resistance R 36, triode VT11, triode VT12, the P0.0 pin that the section of charactron LED5 and charactron LED6 is selected termination single-chip microprocessor MCU 1 is to the P0.7 pin, and position choosing end connects respectively the collector electrode of triode VT11 triode VT12.
In order to reduce charging temperature, in shell body 1, also be provided with radiator fan.
Like this, in the present invention, can pass through accumulator polarity identification circuit and accumulator polarity change-over circuit, realization is identified the positive and negative electrode of storage battery, and carry out correspondence conversion, when the positive and negative electrode that storage battery occurs and the positive and negative electrode of power supply connect inverse time, can automatically change, thereby normally charge for storage battery, simultaneously, when not connecing storage battery, battery tension identification circuit and accumulator polarity identification circuit no signal, therefore the load-side Non voltage output, though with the load-side short circuit also without short circuit current, so can not cause the damage of charging device; By battery tension identification circuit and storage battery voltage conversion circuit, realize the voltage range of storage battery is identified automatically, and carry out adaptive transition.The present invention connects the 220V civil power, arrives the control circuit upper end by transformer 5, rectification circuit.During charging, the P2.6 pin of single-chip microprocessor MCU 2 will produce the square-wave pulse of Millisecond, and then field effect transistor is understood periodically break-make, and namely charging pulse to improve charge efficiency, can be regulated the size that charge pulse duty cycle is regulated charging current.Charging accumulator removes the edge-on i.e. outage of back loading, restPoses.When storage battery is filled, the electric quantity detecting circuit of storage battery is sent signal into single-chip microprocessor MCU 2, entered before this floating charge state, then single-chip microprocessor MCU 2 makes energy-saving circuit cut off the charging device power supply fully, and charging device can be charge in batteries again after battery tension drops to certain value.In addition, the present invention also is attached with the function of repairing and activating storage battery, press function conversion key 19, can automatically repair storage battery, single-chip microprocessor MCU 2 charges a battery first, when electric weight is full of, single-chip microprocessor MCU 2 controlled discharge circuit workings behind the discharge off, can charge a battery again, carry out like this 2-3 circulation, can reach the purpose that activates and repair storage battery.
Operation principle of the present invention is as follows: the 220V civil power is told three tunnel different alternating currents by transformer 5; be 12V, 24V, 36V; when load-side does not connect storage battery; the voltage identification of storage battery and polarity identification circuit no signal; therefore polarity switching and the voltage conversion circuit of storage battery are not worked; load-side A, B Non voltage output, though with A, B short circuit also without short circuit current, thereby realized short circuit zero current protection.When charging device A, B access storage battery, no matter the negative still positive A of B of the positive B of A is negative, voltage all can arrive series resistance R3, R4 by rectifier bridge GB2, modulus conversion chip ADC2 will change into digital signal to the aanalogvoltage at resistance R 4 two ends and send into single-chip microprocessor MCU 2 at this moment, single-chip microprocessor MCU 2 judges after receiving the data that ADC2 sends here, then controls voltage conversion circuit work.The voltage of batteries mostly is 12V, 24V or 36V, if single-chip microprocessor MCU 2 detects the voltage at A, B two ends between 7～15V, just with 12V voltage as reference voltage, pin P2.4 exports high level, relay J 2 set, charging voltage just has been switched to 12V, shows 12V by charactron LED1, LED2 simultaneously; If single-chip microprocessor MCU 2 detects the voltage at A, B two ends between 17～28V, just with 24V voltage as reference voltage, pin P2.3 exports high level, relay J 3 set, charging voltage just has been switched to 24V, allows simultaneously charactron LED1, LED2 show 24V; If single-chip microprocessor MCU 2 detects the voltage at A, B two ends between 28～40V, just with 36V voltage as reference voltage, pin P2.2 exports high level, relay J 4 set, charging voltage just has been switched to 36V, allows simultaneously charactron LED1, LED2 show 36V.Treat that single-chip microprocessor MCU 2 collects voltage signal and gathers later on the accumulator polarity signal again, in order to avoid A, being mistaken as during the access of B end no storage battery is that the positive A of B is negative, polarity identification circuit is by diode D1, photoelectrical coupler V, resistance R 13 forms, by the characteristic of diode and optocoupler as can be known, connect negative if A meets positive B, photoelectrical coupler V conducting, the P3.7 of single-chip microprocessor MCU 2 becomes low level, after single-chip microprocessor MCU 2 detects the P3.7 step-down, make P2.1 output high level, then J5 set, thereby normally charge for storage battery, if B connect positive A connect negative, not conducting of photoelectrical coupler V, the P3.7 of single-chip microprocessor MCU 2 is high level, it is high level that single-chip microprocessor MCU 2 detects P3.7, can make P2.0 output high level, then J6 set is similarly storage battery and normally charges.
The P2.7 pin of MCU2 will sender's wave impulse when charging normal, so field effect transistor DS1 can send charging pulse, has prevented that accumulator plate from producing too much bubble.When having charging current to flow through wire resistor R2, must produce pressure drop at resistance R 2 two ends, the electric current that flows through resistance R 2 is larger, pressure drop is larger, modulus conversion chip is sent the voltage signal at resistance R 2 two ends into single-chip microprocessor MCU 1, single-chip microprocessor MCU 1 with the voltage signal analytical calculation of sending here after, show by charactron LED3, LED4.Voltage can slowly raise during charge in batteries, theoretical voltage value after single-chip microprocessor MCU 1 can be full of according to the voltage signal of analog to digital converter ADC2 and storage battery is made comparisons, thereby calculate the current electric quantity (being expressed as a percentage) of storage battery, then show by charactron LED3, LED4.Display circuit realizes that by dynamic scan multidigit nixie tube shows.When battery tension reached threshold voltage, when namely electric weight was full of, the P2.5 of single-chip microprocessor MCU 2 exported high level, and relay J 1 set is the normally closed interlock of J1 because transformer 5 connects, so transformer 5 disconnects after the J1 set, charging stops.After charging accumulator removes, because charging voltage is pulse voltage, the voltage of output terminals A, B must be promising moment of zero, when voltage is zero, the voltage at resistance R 4 two ends is similarly zero, each I/O mouth restPosed after MCU2 detected zero-signal, therefore charging device also returns to initial condition, waited for the access of next group charging accumulator.
In addition, this charging device also is attached with the function of repairing and activating storage battery, after pressing function conversion key 19, the P3.6 of single-chip microprocessor MCU becomes low level, it is that low level is just called the internal repair program that single-chip microcomputer detects P3.6, for the storage battery charging, be full of rear shutoff charging device first, P2.7 exports high level again, field effect transistor DS1 conducting, storage battery is just by resistance wire R1 discharge discharge, after single-chip microprocessor MCU 2 detects battery tension and drops to certain value by ADC1, namely discharge finish after, turn-off DS1, simultaneously connect again charging device and charge a battery, so carry out 2～3 circulations, namely reached the purpose that activates and repair storage battery.
Need to replenish to be single-chip microprocessor MCU 1 all determined by the program that writes with the working method of MCU2.When electric weight detected, when access 12V storage battery, single-chip microprocessor MCU 2 identified the voltage of storage battery before this, again the current voltage of storage battery and 12V storage battery completely the theoretical voltage behind the electricity make comparisons, thereby calculate the current electric quantity of storage battery; When access 24V storage battery, single-chip microprocessor MCU 2 is to identify first the voltage of storage battery equally, again the current voltage of storage battery and 24V storage battery completely the theoretical voltage behind the electricity make comparisons, thereby calculate the current electric quantity of storage battery; When the storage battery of 36V, it also is same principle.That is to say the storage battery that no matter accesses several volts, single-chip microcomputer all can access corresponding with it voltage reference, can both demonstrate more accurately the current electric quantity of storage battery after the calculating.
Claims (2)
1. Multifunctional intelligent charging device, comprise shell body (1), power line (2), charging terminal (3), circuit board (4) and transformer (5), circuit board (4) is fixed in the shell body (1), transformer (5) is fixedly mounted on the circuit board (4), the output of the wire of charging terminal (3) from the circuit board (4) connects, and it is characterized in that: the voltage range identification display window (6) that is provided with storage battery on the top of the upper face of shell body (1), the charging current display window (7) of storage battery and the charge volume display window (8) of storage battery; Be provided with function conversion key (19) in the bottom of the upper face of shell body (1), electric current increases key (20) and electric current reduces key (21); Comprise on the described circuit board (4) that accumulator polarity identification circuit (10), battery tension identification circuit (11), accumulator polarity change-over circuit (12), storage battery voltage conversion circuit (13), charging pulse produce circuit (14), energy-saving circuit (15) and modulus conversion chip ADC1, ADC2, single-chip microprocessor MCU 1, MCU2; Described accumulator polarity identification circuit (10) is comprised of photoelectrical coupler V, diode D1 and resistance R 13,1 pin of photoelectrical coupler V connects the P3.7 pin of single-chip microprocessor MCU 2, the 2 pin ground connection of photoelectrical coupler V, 3 pin of photoelectrical coupler V are rectified the utmost point by the A that resistance R 13 connects storage battery, and positive contact corresponding to of rectifier bridge GB2 connects, 4 pin of photoelectrical coupler V connect the B end negative pole of storage battery by diode D1, and connect with the corresponding negative contacts of rectifier bridge GB2; Described battery tension identification circuit (11), formed by modulus conversion chip ADC2 and resistance R 3, R4, rectifier bridge GB2,1 to 8 pin of modulus conversion chip ADC2 connects the P1.0 pin of single-chip microcomputer MCU2 successively to the P1.7 pin, and the P3.0 pin that meets simultaneously single-chip microcomputer MCU1 is to the P3.7 pin, 9 pin of modulus conversion chip ADC2 connect the positive contact of rectifier bridge GB2 by resistance R 3, and by resistance R 4 ground connection; Described accumulator polarity change-over circuit (12), by triode VT5, triode VT6, resistance R 11, resistance R 12, diode D6, diode D7, relay J 5 and relay J 6 form, the collector electrode of the collector electrode of triode VT5 and triode VT6 is succeeded respectively a contact of electrical equipment J5 and relay J 6, diode D6 and diode D7 are in parallel with relay J 5 and relay J 6 respectively, the grounded emitter of triode VT5 and triode VT6, the base stage of triode VT5 and triode VT6 connects respectively P2.1 pin and the P2.0 pin of single-chip microcomputer MCU2 by resistance R 11 and resistance R 12, and simultaneously by resistance R 28, resistance R 29 connects the 5V power supply, and another contact of relay J 5 and relay J 6 connects the 12V power supply; Described storage battery voltage conversion circuit (13), by triode VT2, triode VT3, triode VT4, relay J 2, relay J 3, relay J 4, diode D3, diode D4, diode D5 and resistance R 8, resistance R 9, resistance R 10 forms, the collector electrode of triode VT2, the collector electrode of the collector electrode of triode VT3 and triode VT4 is succeeded respectively electrical equipment J2, a contact of relay J 3 and relay J 4, diode D3, diode D4 and diode D5 respectively with relay J 2, relay J 3 and relay J 4 parallel connections, triode VT2, the grounded emitter of triode VT3 and triode VT4, triode VT2, the base stage of triode VT3 and triode VT4 is respectively by resistance R 8, resistance R 9 and resistance R 10 connect respectively the P2.4 pin of single-chip microcomputer MCU2, P2.3 pin and P2.2 pin, and simultaneously by resistance R 25, resistance R 26 and resistance R 27 connect the 5V power supply, relay J 2, another contact of relay J 3 and relay J 4 connects the 12V power supply; Described charging pulse produces circuit (14), is comprised of field effect transistor DS2 and resistance R 6, and the grid of field effect transistor DS2 connects the P2.6 pin of single-chip microcomputer MCU2 by resistance R 6, and connects the 5V power supply by the resistance R 23 of drawing from single-chip microprocessor MCU 2 simultaneously; Described energy-saving circuit (15), formed by triode VT1, relay J 1, diode D2 and resistance R 7, the contact of the collector connecting relay J1 of triode VT1, diode D2 is in parallel with relay J 1, the base stage of triode VT1 connects the P2.5 pin of single-chip microcomputer MCU2 by resistance R 7, and connects the 5V power supply by resistance R 24 simultaneously; The model of described modulus conversion chip ADC1 and ADC2 is AD803; The model of described single-chip microprocessor MCU 1 and MCU2 is STC89C52; The model of described photoelectrical coupler V is PC817.
2. Multifunctional intelligent charging device according to claim 1 is characterized in that described electric current increases P3.5 pin and P3.4 pin that fixed contact that key (20) and electric current reduce key (21) meets respectively single-chip microcomputer MCU2; The model of described single-chip microprocessor MCU 2 is STC89C52.
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| CN109788699B (en) * | 2017-11-15 | 2021-03-16 | 技嘉科技股份有限公司 | Open operation server cabinet and expansion power supply module thereof |
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| US5319298A (en) * | 1991-10-31 | 1994-06-07 | Vern Wanzong | Battery maintainer and charger apparatus |
| US5422560A (en) * | 1991-09-30 | 1995-06-06 | Telcom Semiconductor, Inc. | Battery charger with battery detection circuit |
| CN200979994Y (en) * | 2006-06-30 | 2007-11-21 | 宁波力达物料搬运设备厂 | A storage battery charger |
| CN201360168Y (en) * | 2009-01-15 | 2009-12-09 | 天津市德瑞康科技有限公司 | Intelligent charger |
| CN202231471U (en) * | 2011-06-07 | 2012-05-23 | 高迟 | Multifunctional intelligent charging device |
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2011
- 2011-06-07 CN CN2011101510154A patent/CN102227088B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5422560A (en) * | 1991-09-30 | 1995-06-06 | Telcom Semiconductor, Inc. | Battery charger with battery detection circuit |
| US5319298A (en) * | 1991-10-31 | 1994-06-07 | Vern Wanzong | Battery maintainer and charger apparatus |
| CN200979994Y (en) * | 2006-06-30 | 2007-11-21 | 宁波力达物料搬运设备厂 | A storage battery charger |
| CN201360168Y (en) * | 2009-01-15 | 2009-12-09 | 天津市德瑞康科技有限公司 | Intelligent charger |
| CN202231471U (en) * | 2011-06-07 | 2012-05-23 | 高迟 | Multifunctional intelligent charging device |
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