CN103326449A - Charging and automatic power-off device used for electric vehicle - Google Patents

Charging and automatic power-off device used for electric vehicle Download PDF

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Publication number
CN103326449A
CN103326449A CN2012100706311A CN201210070631A CN103326449A CN 103326449 A CN103326449 A CN 103326449A CN 2012100706311 A CN2012100706311 A CN 2012100706311A CN 201210070631 A CN201210070631 A CN 201210070631A CN 103326449 A CN103326449 A CN 103326449A
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CN
China
Prior art keywords
transformer
power supply
integrated circuit
charging
relay
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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.)
Pending
Application number
CN2012100706311A
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Chinese (zh)
Inventor
李国彪
贾巍
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Xiangfan University
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Xiangfan University
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Filing date
Publication date
Application filed by Xiangfan University filed Critical Xiangfan University
Priority to CN2012100706311A priority Critical patent/CN103326449A/en
Publication of CN103326449A publication Critical patent/CN103326449A/en
Pending legal-status Critical Current

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Abstract

The invention provides a charging and automatic power-off device used for an electric vehicle. In the device capable of charging an electric motor car, one end of a transformer B1 is in series connection with a diode VD3, a voltage stabilizer, a diode VD5, an integrated circuit, a relay, and then one end of a transformer B2, thereby forming a control loop. The tail end of the integrated circuit is in connection with a resistor R4, and the front end of the integrated circuit is in series connection with a light coupler and a resistor R3 and in parallel connection with a load resistor. The other end of the transformer B1 is in series connection with a neon bulb, a resistor R1, and a touch switch, and then an external power supply contact. A relay contact switch of the relay is disposed near the touch switch of the external power supply contact. The other end of the transformer B2 is in series connection with a socket and then another external power supply contact. The device can be used for cutting off power supply after the electric vehicle is fully charged, thereby facilitating energy conservation and ensuring charging safety.

Description

Electric motor car charging auto-power-off device
Technical field
The present invention relates to a kind of device for the electric vehicle accumulator charging, specifically is a kind of electric motor car charging auto-power-off device.
Technical background
Electric bicycle all disposes special-purpose charger, after being charged to specified voltage, storage battery then enters the miniflow charged state until charging termination, but in use, the storage battery of electric motor car is after being full of electricity, its charger still is in electriferous state, built-in radiator fan is still working on, and both power consumptions also can directly jeopardize safety.
Summary of the invention
The object of the present invention is to provide a kind of electric motor car charging auto-power-off device, can allow charger after charging finishes, auto power off.
The present invention includes transformer and integrated circuit and socket, the technical scheme that adopts is: transformer B in a device that can be electric motor car charging 1B 2Primary side connects diode VD 1, VD 2, VD 3, voltage-stabiliser tube, diode VD 5, integrated circuit, relay and transformer B 2Primary side links to each other, and consists of thus control loop; Be connected with resistance R at integrated circuit 4, optical coupler and resistance R 3And load resistance, the B of transformer 1B 2Primary side connects neon bulb, resistance R 1With an external power supply joint is set behind the soft-touch control, the soft-touch control that the relay contact switch of relay is arranged on the external power supply joint nearby, the B of transformer 1B 2Primary side arranges another external power supply joint after connecting a socket.
Technique scheme comprises: be connected with capacitor C between diode and integrated circuit 2
Loop at transformer is parallel with capacitor C.
A port at optical coupler also is connected with capacitor C 3
Beneficial effect of the present invention is: during use, can guarantee normally charging, after charging enters the miniflow charged state, can keep trace charging approximately 2 hours, when charging safety finishes, can be automatically thorough deenergization, favourable electrical energy saving and safe and reliable charge for electric motor car.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.。
Accompanying drawing is each component connection structure schematic diagram of the present invention.
Among the figure: 1, external power supply joint, 2, resistance R 1, 3, soft-touch control, 4, neon bulb, 5, transformer, 6, diode VD 1, VD 2, VD 3, 7, voltage-stabiliser tube, 8, capacitor C 2, 9, diode VD 5, 10, integrated circuit, 11, resistance R 4, 12, relay coil, 13, socket, 14, capacitor C, 15, load resistance, 16, resistance R 3, 17, optical coupler, 18, capacitor C 3,19, relay contact switch.
Embodiment
Shown in the accompanying drawing embodiment: transformer 5B in a device that can be electric motor car charging 2Primary side connects diode VD 36, voltage-stabiliser tube 7, diode VD 59, the B of integrated circuit 10, relay 12 and transformer 5 2Primary side links to each other, and consists of thus control loop; Be connected with resistance R at integrated circuit 10 411, optical coupler 17 and resistance R 316 and load resistance 15, the B of transformer 5 1B 2Primary side connects neon bulb 4, resistance R 12 and soft-touch control 3 after an external power supply joint 1 is set, the soft-touch control 3 that the relay contact switch 19 of relay coil 12 is arranged on external power supply joint 1 nearby, the B of transformer 5 2Primary side arranges another external power supply joint 1 after connecting a socket 13.Between diode 6 and integrated circuit 10, be connected with capacitor C 28.Be parallel with capacitor C 14 in the loop of transformer 5.A port at optical coupler 17 also is connected with capacitor C 318.
When charging to storage battery, press soft-touch control 3, connect the 220V power supply.At this moment power supply is divided into two-way: the one tunnel behind transformer 5 step-down rectifiers for control circuit provides power supply, another road is by transformer 5 and socket 13.When charging normal, transformer 5 primary side voltages are about 1.5～2V, and secondary-side voltage is through diode VD 36 and capacitor C 1Produce the approximately voltage of 9～12V at resistance R 2 two ends behind 14 rectifying and wave-filterings; The meanwhile voltage-stabiliser tube 7 of the 7.5V conducting that is triggered, resistance R 3There is electric current to pass through on 16, optical coupler IC1 conducting, 2 pin, the 6 pin voltages of integrated circuit 10 are pulled down to 0V, 3 pin output high level, relay K -112 adhesives, K -1Contacting begins charging.
Integrated circuit 10 consists of timer with peripheral cell among the figure.When the normal current charges of charger finish enter miniflow charging after, transformer 5 primary side electric currents become very little, load resistance R 215 both end voltage become 2～3V, make voltage-stabiliser tube VD 47 cut-offs, optical coupler 17 also ends.Power supply passes through resistance R 411 pairs of capacitor C 318 chargings continue capacitor C along with what charge 3The voltage at 18 two ends rises gradually, when miniflow charged approximately 2 hours, and (2) pin of integrated circuit 10, (6) pin output high level, (3) pin output low level, relay contact switch 19 contacts disconnect, and thoroughly cut off and fill tortoise device power supply.

Claims (4)

1. electric motor car charging auto-power-off device comprises transformer (5) and integrated circuit (10) and socket (13), it is characterized in that: can be transformer (5) B in the device that electric motor car charges at one 1B 2Primary side connects diode VD 1, VD 2, VD 3(6), voltage-stabiliser tube (7), diode VD 5(9), the B of integrated circuit (10), relay (12) and transformer (5) 2Primary side links to each other, and consists of thus control loop; Be connected with resistance R at integrated circuit (10) 4(11), optical coupler (17) and resistance R 3(16), and a load resistance (15), the B of transformer (5) 1B 2Primary side connect neon bulb (4), resistance R 1(2) and an external power supply joint (1) is set behind the soft-touch control (3), the relay contact switch (19) of relay (12) is arranged on the soft-touch control (3) of external power supply joint (1), transformer (5) B 1B 2Primary side another external power supply joint (1) is set after connecting a socket (13).
2. electric motor car charging auto-power-off device according to claim 1 is characterized in that: be connected with capacitor C between diode (6) and integrated circuit (10) 2(8).
3. electric motor car charging auto-power-off device according to claim 1 is characterized in that: be parallel with capacitor C (14) in the loop of transformer (5).
4. electric motor car charging auto-power-off device according to claim 1 is characterized in that: be connected with capacitor C at optical coupler (17) 3(18).
CN2012100706311A 2012-03-19 2012-03-19 Charging and automatic power-off device used for electric vehicle Pending CN103326449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012100706311A CN103326449A (en) 2012-03-19 2012-03-19 Charging and automatic power-off device used for electric vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012100706311A CN103326449A (en) 2012-03-19 2012-03-19 Charging and automatic power-off device used for electric vehicle

Publications (1)

Publication Number Publication Date
CN103326449A true CN103326449A (en) 2013-09-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012100706311A Pending CN103326449A (en) 2012-03-19 2012-03-19 Charging and automatic power-off device used for electric vehicle

Country Status (1)

Country Link
CN (1) CN103326449A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104410139A (en) * 2014-12-25 2015-03-11 江苏理工学院 Automatic power-off circuit and automatic power-off device for full storage battery of storage battery car

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104410139A (en) * 2014-12-25 2015-03-11 江苏理工学院 Automatic power-off circuit and automatic power-off device for full storage battery of storage battery car

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Application publication date: 20130925