CN2181117Y - Recharging machine - Google Patents

Recharging machine Download PDF

Info

Publication number
CN2181117Y
CN2181117Y CN 93232066 CN93232066U CN2181117Y CN 2181117 Y CN2181117 Y CN 2181117Y CN 93232066 CN93232066 CN 93232066 CN 93232066 U CN93232066 U CN 93232066U CN 2181117 Y CN2181117 Y CN 2181117Y
Authority
CN
China
Prior art keywords
resistance
pin
voltage
circuit
integrated circuit
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.)
Expired - Fee Related
Application number
CN 93232066
Other languages
Chinese (zh)
Inventor
于晓
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.)
QINGDAO SPECIAL AUTOMOBILE Manufacturing PLANT
Original Assignee
QINGDAO SPECIAL AUTOMOBILE Manufacturing PLANT
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 QINGDAO SPECIAL AUTOMOBILE Manufacturing PLANT filed Critical QINGDAO SPECIAL AUTOMOBILE Manufacturing PLANT
Priority to CN 93232066 priority Critical patent/CN2181117Y/en
Application granted granted Critical
Publication of CN2181117Y publication Critical patent/CN2181117Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The utility model discloses a battery charger. To overcome the disadvantages that the existing charger is easy to cause overcharge and un-visible current-voltage display, the utility model is provided with a rectifier transformer and a controllable silicon rectifier circuit, wherein, a primary coil of the rectifier transformer is serially connected with a normally closed button and a normally open contact of a relay. The utility model also comprises a current display circuit which is composed of an amplifier, an integrated circuit LM3914 and a light emitting diode, a voltage display circuit which is composed of a voltage stabilizing tube, an adjustable resistor, an integrated circuit LM3914 and a light emitting diode, and a voltage detection and power-off circuit which is composed of a voltage comparator, a Schmitt trigger, a relay and an optical coupling tube. The utility model is used for battery charging to prevent overcharge.

Description

Recharging machine
The utility model relates to a kind of battery charger, especially for the charger of automobile storage battery.
When an automobile Fraquent start and the speed of a motor vehicle when being unable to lift certainly will cause discharged or defective battery, so that influence the starting and the operation of automobile.The methods that many storage battery connection in series-parallel are charged simultaneously that adopt charge a battery at present.The advantage of this method is once to fill many storage batterys, but many storage batterys charge together, because the power shortage situation difference of storage battery, that certainly will cause overcharges, the undercharge that has, and adopt this method will have the special messenger to nurse waste of manpower.In addition, the electric current that charges a battery at present, voltage show that the magneto-electric gauge outfits that adopt show that this gauge outfit is not anti-shakes, and reading is not directly perceived more.
Goal of the invention of the present utility model is a kind of battery charger of design, and it can be cut off the electricity supply after storage battery is full of electricity automatically, the charging of not starting shooting when discharged or defective battery is following to final voltage.And can carry out the numeral demonstration to charging current and voltage.
Goal of the invention of the present utility model is achieved in that charger, and it has rectifier transformer B r, SCR rectification circuit and circuits for triggering.Rectifier transformer B rFirst coil L 1Be in series with normally closed button A 1Normally opened contact J with relay J -1The output of SCR rectification circuit is in series with feedback resistance R 1, feedback resistance R 1An end A be connected with circuits for triggering.Its special character is: it also comprises:
A, current display circuit, it is by amplifier, integrated circuit U 2With light-emitting diode D 1, D 2D 10Form.Amplifier input terminal respectively with feedback resistance R 1Ends A, B connect the output of amplifier and voltage-stabiliser tube D 26With adjustable resistance R 18The series circuit of forming connects.Integrated circuit U 1Adopt LM3914, integrated circuit U 15 pin and adjustable resistance R 18Sliding end connect integrated circuit U 11,18,17 ... 10 pin respectively with light-emitting diode D 1, D 2, D 3D 10Negative electrode connect.
B, voltage display circuit, it has by voltage-stabiliser tube D 22With adjustable resistance R 2The series circuit, the integrated circuit U that form 3With light-emitting diode D 11, D 12D 20Voltage-stabiliser tube D 22Negative electrode be connected with the output head anode of SCR rectification circuit.Adjustable resistance R 2An end be connected with the negative pole of output end of SCR rectification circuit.Integrated circuit U 3Adopt LM3914, integrated circuit U 35 pin and adjustable resistance R 2Sliding end connect integrated circuit U 31,18,17 ... 10 pin respectively with light-emitting diode D 11, D 12, D 13D 20Negative electrode connect.
C, voltage detecting and power-down circuit, it has voltage comparator, Schmidt trigger, triode T 1, optocoupler pipe G, triode T 2, relay J and interlock often open button A 2-1, A 2-2The comparative voltage input of voltage comparator and adjustable resistance R 7Sliding end connect adjustable resistance R 7The output of an end and SCR rectification circuit negatively be connected adjustable resistance R 7The other end and resistance R 6An end connect resistance R 6The other end be connected with the output head anode of SCR rectification circuit.The output of voltage comparator is connected with the triggering input of Schmidt trigger, and the output of Schmidt trigger passes through resistance R 12With triode T 1Base stage connect.Triode T 1Emitter be connected triode T with the negative pole of output end of SCR rectification circuit 1Collector electrode series connection adjustable resistance R 131,2 pin of optocoupler pipe G respectively with adjustable resistance R 13Sliding end and triode T 1Collector electrode connect.The normally opened contact J of relay J -2An end be connected normally opened contact J with the output head anode of SCR rectification circuit -2The other end and resistance R 3An end connect.Resistance R 3The other end and voltage-stabiliser tube D 24Negative electrode connect voltage-stabiliser tube D 24Anode be connected with the negative pole of output end of SCR rectification circuit.Often open button A 2-1And be connected in normally opened contact J -2Two ends.Voltage-stabiliser tube D 24Negative electrode and resistance R 14An end and coil one end of relay J be connected resistance R 14The other end be connected the coil other end of relay J and triode T with 5 pin of optocoupler pipe G 2Collector electrode connect.Triode T 2Emitter be connected triode T with the negative pole of output end of SCR rectification circuit 2Base stage be connected with 4 pin of optocoupler pipe G.Often open button A 2-2Two ends be connected with 5 pin with 4 pin of optocoupler pipe G respectively.
The utility model is when charging a battery, after being full of electricity, can cut off the electricity supply automatically, can prevent to overcharge, especially automotive battery is charged, the utility model can be made vehicular, be directly installed on the automobile, when the automobile stagnation of movement, lead-out wire is received on the AC power to the car battery charging, do not needed the special messenger to nurse in the charging process, easy to operate.So both can prevent that storage battery often was in the power shortage state, causes storage battery to damage in early days, and also can prevent to overcharge, thereby reduce car accident the useful life of prolongation storage battery.When discharged or defective battery below final voltage, promptly reach the degree of scrapping after, the utility model charging of not starting shooting.When storage battery has electricity not need to charge, the utility model charging of also not starting shooting.Can save time like this, saves energy.In addition, the utlity model has unique electric current, function displaying voltage adopts light-emitting diode to carry out numeral and shows that vibration resistance is strong, and reading is directly perceived.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
Accompanying drawing is circuit theory diagrams of the present utility model.
As shown in drawings: rectifier transformer B rPrimary coil L 1Be in series with normally closed button A 1With relay J often open button J -1Rectifier transformer B rFour secondary coil L are arranged 2, L 3, L 4, L 5, secondary wire coil L 2Be connected with SCR rectification circuit.Controllable silicon K P1, K P2Form the controllable silicon full-wave rectification, circuits for triggering are by secondary coil L 3Power supply is provided.The output head anode of SCR rectification circuit is in series with feedback resistance R 1, circuits for triggering and feedback resistance R 1An end A connect.Feedback resistance R 1By circuits for triggering SCR rectification circuit is realized overcurrent protection.Current display circuit is by amplifier, integrated circuit U 2With light-emitting diode D 1, D 2D 10Form, amplifier is by integrated circuit U 1, resistance R 15, resistance R 18With adjustable resistance R 17Form.Integrated circuit U 1Adopt integrated operational amplifier 324, integrated circuit U 2Adopt LM3914.Inferior coil L 5, diode bridge rectifier circuit Q 2, three terminal regulator 7812 and filter capacitor C 6, C 7For current display circuit provides power supply.Integrated circuit U 1Normal phase input end and resistance R 15One end connects, resistance R 15The other end and feedback resistance R 1An end A connect.Integrated circuit U 1Inverting input and resistance R 16An end connect resistance R 16The other end and feedback resistance R 1Other end B be connected adjustable resistance R with power cathode 17Two ends respectively with integrated circuit U 1Output be connected with inverting input.Integrated circuit U 1Output with by voltage-stabiliser tube D 26With adjustable resistance R 18The series circuit of forming connects.Integrated circuit U 25 pin and adjustable resistance R 18Sliding end connect integrated circuit U 11,18,17 ... 10 pin respectively with light-emitting diode D 1, D 2, D 3D 10Negative electrode connect.Voltage display circuit has by voltage-stabiliser tube D 22With adjustable resistance R 2The series circuit, the integrated circuit U that form 3With light-emitting diode D 11, D 12D 20Voltage-stabiliser tube D 22Negative electrode be connected adjustable resistance R with the output head anode of SCR rectification circuit 2An end be connected integrated circuit U with the negative pole of output end of SCR rectification circuit 3Adopt LM3914, its 5 pin and adjustable resistance R 2Sliding end connect its 1,18,17 ... 10 pin respectively with light-emitting diode D 11, D 12, D 13D 20Negative electrode connect.Diode D 21Can prevent that interference signal from entering SCR rectification circuit.Voltage detecting and power-down circuit have voltage comparator, Schmidt trigger, triode T 1, optocoupler pipe G, triode T 2, relay J and interlock often open button A 2-1, A 2-2Secondary coil L 4, diode bridge rectifier circuit Q 1, three terminal regulator 7812 and filter capacitor C 1, C 2Be voltage comparator, Schmidt trigger, triode T 1With integrated circuit U 1Power supply is provided.Resistance R 4, adjustable resistance R 5With voltage-stabiliser tube D 25For voltage comparator provides reference voltage, voltage comparator is by integrated circuit U 4, resistance R 8And resistance R 9Form.Integrated circuit U 4Adopt operational amplifier 324, its normal phase input end and resistance R 8An end connect resistance R 8The other end and adjustable resistance R 7Sliding end connect.Integrated circuit U 4Inverting input and resistance R 9An end connect resistance R 9The other end as reference voltage input and resistance R 5Sliding end connect.Integrated circuit U 4Output be connected with the triggering input of Schmidt trigger.Schmidt trigger is by integrated circuit U 5, capacitor C 5And resistance R 11Form.Integrated circuit U 5Adopt NE555, its 1 pin is connected with power cathode, and 5 pin pass through capacitor C 5Be connected with power cathode, 6 pin and 7 pin pass through resistance R 11Be connected with positive source, 4 pin are connected with positive source with 8 pin, and 2 pin are connected with the output of voltage comparator.3 pin pass through resistance R 12With triode T 1Base stage connect.By resistance R 6With adjustable resistance R 7The two ends of the series circuit of forming are connected in parallel on the both positive and negative polarity of SCR rectification circuit output.Triode T 1Emitter be connected triode T with the negative pole of output end of SCR rectification circuit 1Collector electrode series connection adjustable resistance R 131,2 pin of optocoupler pipe G respectively with adjustable resistance R 13Sliding end and triode T 1Collector electrode connect.The normally opened contact J of relay J -2An end by diode D 23Be connected normally opened contact J with the output head anode of SCR rectification circuit -2The other end and resistance R 3An end connect resistance R 3With the other end and voltage-stabiliser tube D 24Negative electrode connect voltage-stabiliser tube D 24Anode be connected with the negative pole of output end of SCR rectification circuit.Often open button A 2-1Be connected in parallel on normally opened contact J -2Two ends.Diode D 23Can prevent that interference signal from entering SCR rectification circuit.Voltage-stabiliser tube D 24Negative electrode and resistance R 14An end and coil one end of relay J be connected resistance R 14The other end be connected the coil other end of relay J and triode T with 5 pin of optocoupler pipe G 2Collector electrode connect triode T 2Emitter be connected triode T with the negative pole of output end of SCR rectification circuit 2Base stage be connected with 4 pin of optocoupler pipe G, often open button A 2-2Two ends be connected with 5 pin with 4 pin of optocoupler pipe G respectively.
The utility model starting is to utilize the residual voltage of storage battery to start, when the residual voltage of storage battery during greater than 20V, and 10V voltage-stabiliser tube D 24Conducting, relay J and triode T 2Operating voltage is arranged.Press interlock and often open button A this moment 2-1, A 2-2, triode T 2Conducting, relay J adhesive, normally opened contact J -1, J -2Closure, entire circuit has.4, the 5 pin conductings of optocoupler pipe G substitute and often open button A 2-2, make triode T 2Keep working with relay J always.When discharged or defective battery is following to 20V, voltage-stabiliser tube D 24Not conducting, relay J can not adhesives, and entire circuit is not worked.As integrated circuit U 4The signal of inverting input during greater than the input signal of normal phase input end, integrated circuit U 4Output low level.Integrated circuit U 53 pin output high level, triode T 1Conducting, the lumination of light emitting diode of optocoupler pipe G makes 4,5 pin conductings, triode T 2Conducting, the relay J adhesive, entire circuit has electricity, the charging beginning.Along with the carrying out of charging, the voltage of storage battery raises gradually, makes integrated circuit U 4The input signal of normal phase input end greater than the input signal of inverting input, integrated circuit U 4The output high level, integrated circuit U 53 pin output low levels, triode T 1End, relay J discharges, normally opened contact J -1Cut off the electricity supply, stop charging.Storage battery this moment full charge.Electric current shows by ten light-emitting diode D 1, D 2D 10The bar formula shows that voltage shows by ten light-emitting diode D 11, D 12D 20The bar formula shows.

Claims (3)

1, charger, it has rectifier transformer (B r), SCR rectification circuit and circuits for triggering, rectifier transformer (B r) primary coil (L 1) be in series with normally closed button (A 1) and the normally opened contact (J of relay (J) -1), the output of SCR rectification circuit is in series with feedback resistance (R 1), feedback resistance (R 1) an end (A) be connected with circuits for triggering, it is characterized in that: it also comprises:
A, current display circuit, it is by amplifier, integrated circuit (U 2) and luminous=utmost point pipe (D 1), (D 2) ... (D 10) form, amplifier input terminal respectively with feedback resistance (R 1) two ends (A), (B) connect, the output of amplifier with by voltage-stabiliser tube (D 26) and adjustable resistance (R 18) series circuit formed connects integrated circuit (U 1) employing LM3914, integrated circuit (U 1) (5) pin and adjustable resistance R 18Sliding end connect integrated circuit (U 1) (1), (18), (17) ... (10) pin respectively with light-emitting diode (D 1), (D 2), (D 3) ... (D 10) negative electrode connect;
B, voltage display circuit, it has by voltage-stabiliser tube (D 22) and adjustable resistance (R 2) series circuit, the integrated circuit (U that form 3) and light-emitting diode (D 11), (D 12) ... (D 20), voltage-stabiliser tube (D 22) negative electrode be connected adjustable resistance (R with the output head anode of SCR rectification circuit 2) an end be connected integrated circuit (U with the negative pole of output end of SCR rectification circuit 3) employing LM3914, integrated circuit (U 3) (5) pin and adjustable resistance (R 2) sliding end connect integrated circuit (U 3) (1), (18), (17) ... (10) pin respectively with light-emitting diode (D 11), (D 12), (D 13) ... (D 20) negative electrode connect;
C, voltage detecting and power-down circuit, it has voltage comparator, Schmidt trigger, triode (T 1), optocoupler pipe (G), triode (T 2), relay (J) and interlock often leave button (A 2-1), (A 2-2), the comparative voltage input of voltage comparator and adjustable resistance (R 7) sliding end connect adjustable resistance (R 7) the other end be connected adjustable resistance (R with the negative pole of output end of SCR rectification circuit 7) the other end and resistance (R 6) an end connect resistance (R 6) the other end be connected with the output head anode of SCR rectification circuit, the output of voltage comparator is connected with the triggering input of Schmidt trigger, the output of Schmidt trigger is by resistance (R 12) and triode (T 1) base stage connect triode (T 1) emitter be connected triode (T with the negative pole of output end of SCR rectification circuit 1) collector electrode series connection adjustable resistance (R 13), (1) of optocoupler pipe (G), (2) pin respectively with adjustable resistance (R 13) sliding end and triode (T 1) collector electrode connect the normally opened contact (J of relay (J) -2) an end be connected normally opened contact (J with the output head anode of SCR rectification circuit -2) the other end and resistance (R 3) an end connect resistance (R 3) the other end and voltage-stabiliser tube (D 24) negative electrode connect voltage-stabiliser tube (D 24) anode be connected with the negative pole of output end of SCR rectification circuit, often open button (A 2-1) and be connected in normally opened contact (J -2) two ends, voltage-stabiliser tube (D 24) negative electrode and resistance (R 14) an end and coil one end of relay (J) be connected resistance (R 14) the other end be connected the coil other end of relay (J) and triode (T with (5) pin of optocoupler pipe (G) 2) collector electrode connect triode (T 2) emitter be connected triode (T with the negative pole of output end of SCR rectification circuit 2) base stage be connected with (4) pin of optocoupler pipe (G), often open button (A 2-2) two ends be connected with (5) pin with (4) pin of optocoupler pipe (G) respectively.
According to the described charger of claim 1, it is characterized in that 2, voltage comparator is by integrated circuit (U 4), resistance (R 8) and resistance (R 9) form integrated circuit (U 4) employing operational amplifier 324, its normal phase input end and resistance (R 8) an end connect resistance (R 8) the other end and adjustable resistance (R 7) sliding end connect its inverting input and resistance (R 9) an end connect resistance (R 9) the other end be reference voltage input, its output is connected with the triggering input of Schmidt trigger.
3, according to claim 1 or 2 described chargers, it is characterized in that Schmidt trigger is by integrated circuit (U 5), electric capacity (C 5) and resistance (R 11) form integrated circuit (U 5) adopting NE555, its (1) pin is connected with power cathode, and (5) pin is by electric capacity (C 5) be connected with power cathode, (6) pin and (7) pin are by resistance (R 11) be connected with positive source, (4) pin is connected with positive source with (8) pin, and (2) pin is connected with the output of voltage comparator, and (3) pin is by resistance (R 12) and triode (T 1) base stage connect.
CN 93232066 1993-10-11 1993-10-11 Recharging machine Expired - Fee Related CN2181117Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 93232066 CN2181117Y (en) 1993-10-11 1993-10-11 Recharging machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 93232066 CN2181117Y (en) 1993-10-11 1993-10-11 Recharging machine

Publications (1)

Publication Number Publication Date
CN2181117Y true CN2181117Y (en) 1994-10-26

Family

ID=33808375

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 93232066 Expired - Fee Related CN2181117Y (en) 1993-10-11 1993-10-11 Recharging machine

Country Status (1)

Country Link
CN (1) CN2181117Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104836314A (en) * 2015-05-25 2015-08-12 泉州市南安市轴飞电子科技有限公司 New energy vehicle system with function of charge protection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104836314A (en) * 2015-05-25 2015-08-12 泉州市南安市轴飞电子科技有限公司 New energy vehicle system with function of charge protection

Similar Documents

Publication Publication Date Title
CN101969221B (en) Storage battery charger and charging control method thereof
CN102810897B (en) Charging circuit with short-circuit protection and charger
CN203697985U (en) Multifunctional electric bicycle power supply controller
CN211377693U (en) Power transmission line hybrid power supply based on solar energy and induction energy obtaining
CN2446707Y (en) Three stage controlled balance charger
CN2181117Y (en) Recharging machine
CN2174006Y (en) Multifunctional charger
CN202888925U (en) Charging protector for electric vehicle
CN201813191U (en) Accumulator charger
CN210041417U (en) Solar charging controller for small electric vehicle
CN201083346Y (en) Automatic charging and discharging emergency device for traffic signal light
CN201985591U (en) Solar energy three-segment smart charger
CN202363937U (en) Intelligent charge and discharge circuit of dust collector
CN201047504Y (en) Flashlight with electric generation by itself with acousto-optic alarming
CN2487143Y (en) Intelligent Nickel-cadmium (Nickel-hydrogen) cell charger
CN201001045Y (en) Batteries charger
CN104092263A (en) Multifunctional charger circuit
CN102810899B (en) Charging circuit with short circuit protecting function and charger
CN210502303U (en) Charging device of electric automobile
CN2273919Y (en) Integral full automatic arrangement for charging battery
CN218886099U (en) Electric motor car battery is at position detection circuitry
CN211731056U (en) New energy automobile with photovoltaic charging system
CN2609263Y (en) Accumulator charger
CN201946961U (en) Universal overcharge protection device
CN209642381U (en) A kind of 12V battery charger intelligent power saving control circuit

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee