CN201247968Y

CN201247968Y - Double-item automatic separation intelligent electric vehicle charger

Info

Publication number: CN201247968Y
Application number: CNU200820039461XU
Authority: CN
Inventors: 张亚东
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-26
Filing date: 2008-08-26
Publication date: 2009-05-27
Anticipated expiration: 2018-08-26

Abstract

The utility model relates to a two-way automatic separation intelligent electric vehicle charger which comprises a DC control switch arranged between the AC input end of the charger and an AC attaching plug, a relay normally open contact arranged in a coil loop of the DC control switch, a rectification and filter circuit, a switching circuit composed of an audion, and a relay normally open contact arranged between the DC output end of the charger and a charging plug, wherein the DC control switch is manually connected and is disconnected by the DC control; the rectification and filter circuit is arranged at the output end of the DC control switch and provides a DC working power supply for the charger; and a relay delayingly supplies a green light end voltage signal of the charger for the switching unit to be used as a switching circuit signal. The utility model realizes the two-way automatic separation control of the electric vehicle charger by using the green light end voltage signal after the charging of the charger is completed as the switching circuit signal, avoids the delay charging, prolongs the service lives of the battery and the charger, and eliminates unnecessary electric energy consumption.

Description

Two automatic separated intelligent electric car chargers

Technical field

The utility model relates to electric car charger.

Background technology

Charger comprises that electric bicycle, electro-tricycle, electric four-wheel vehicle etc. are as necessary outfit, overcharge the useful life that phenomenon is having a strong impact on battery and charger during the charger charging in electric motor car.Concrete manifestation mainly comprises: can not in time turn-off charge power supply after battery is full of electricity, has the problem that overcharges of battery; Can not power cutoff after charging is finished, wasted unnecessary electricity consumption again; In when charging, need clock from initial beginning of charging, overtimely may damage battery if charge; Before and after charging, plug power supply and battery case plug are subjected to restriction successively; Charging has a power failure in the way, has the high charger that damages of immediate current or voltage when sending a telegram here once more;

The utility model content

The utility model is for avoiding above-mentioned existing in prior technology weak point, a kind of two automatic separated intelligent electric car chargers are provided, can be when battery be full of electricity, make charger and the automatic disjunction of charge power supply on the one hand, make the automatic disjunction of charger and battery case on the other hand, avoid over-charging of battery, prolonged the useful life of battery and charger.

The utility model technical solution problem adopts following technical scheme:

The design feature of two automatic separated intelligent electric car chargers of the utility model is arranged on the DC control switch K1 between charger ac input end and the ac power plug, and described DC control switch K1 manually connects, DC control is turn-offed; Be arranged on the normally opened contact of the relay J 2 in the wire loop of DC control switch K1; Be arranged on DC control switch K1 output, the current rectifying and wave filtering circuit of dc supply is provided for complete machine; Constitute switching circuit by triode Q2, Q3, the green light terminal voltage signal time-delay of charger is supplied with described switching circuit as switch controlling signal by relay J 1; Be arranged on the normal opened contact of the relay J 3 between charger dc output end and the charging plug S1.

The utility model is that the green light terminal voltage signal is a switch controlling signal after finishing with the charging of charger, realize two separated intelligent controls automatically of electric car charger, thereby avoid out-of-date charging to prolong the useful life of battery and charger, eliminate unnecessary power consumption.

Have technology to compare with oneself, the utility model beneficial effect is embodied in:

1, the utility model makes charger and the automatic disjunction of charge power supply on the one hand after battery is full of electricity, charging indicator light and gives a green light, and pulls away the 220V power supply as the attaching plug of charger; Make the automatic disjunction of charger and battery case on the other hand, cut off the loop of the discharge of battery, realize that two are separated automatically, avoid out-of-date charging and unnecessary power consumption, effectively protect battery, prolonged the useful life of battery.

2, two functions of separating automatically of the utility model realize, do not want under timing, the unserviced situation and can both normally charge when making charging, and before and after charging, plug power supply and battery case plug are not subjected to restriction successively.

The big curtage of moment impacts when sending a telegram here once more after 3, the utility model can be stopped to have a power failure midway; There is not unloaded phenomenon.

Description of drawings

Fig. 1 is the utility model structural representation.

Below by embodiment, the utility model is described in further detail in conjunction with the accompanying drawings

Embodiment

Module P shown in Figure 1 is existing normal charge device circuit board, DC is its charging voltage output, VD is red, green VD double color luminotron, DC control switch K1 is set between charger ac input end and ac power plug in the present embodiment circuit structure, and the working forms of DC control beginning is that manually connection, DC control are turn-offed; Relay J 2 is set, and when relay J 2 adhesives, the coil of DC control switch K1 gets electric, makes DC control switch K1 automatic disconnection.

The current rectifying and wave filtering circuit that constitutes by transformer B1, rectifier diode D1, D2 and capacitor C 1 in the output setting of DC control switch K1, by current rectifying and wave filtering circuit is that the coil of relay J 3 offers operating voltage, provides coil working voltage by the delay circuit that is made of resistance R 1, capacitor C 2 and triode Q1 for relay J 1 simultaneously.

Switching circuit by triode Q2, Q3 constitute offers switching circuit by relay J 1 with the time-delay of charger green light terminal voltage signal, as the switch controlling signal of switching circuit; The contact of relay J 3 is set between charger dc output end and charging plug S1.

The course of work

Plug in respectively plug AC and Charger (portable round) S1 press DC control switch K1, and the rectifying and wave-filtering by transformer B1, diode D1, D2 and capacitor C 1 produces 12V direct voltage and output, and relay J 3 adhesives are connected, and charger begins charging;

When charger charges, the VD double color luminotron is that red light is bright, green light goes out, the about 0.4V of green light terminal voltage this moment, the voltage of 0.4V can pressure drop fall about 0.4V through after D3, the R3, at this moment, had only the voltage about 0.0V during the base stage of triode Q2, triode Q2, Q3 all end, and the coil of J2 relay is a power failure state, and its contact remains on the state of disconnection, make that DC control switch K1 keeps connecting, be in normal charged state with this charger.

After battery is full of, the VD double color luminotron is that green light is bright, red light goes out, and this moment, the green light terminal voltage was about 2.0V, and the voltage of 2.0V passes through after the pressure drop of D3, R3 again, the base stage of triode Q2 still has the voltage that is about 1.6V, at this moment, triode Q2, Q3 conducting, resistance R 2 current limlitings, relay J 2 coils get, its contact adhesive, this makes DC control switch K1 because coil gets electric and automatic disconnection, charger stops all work.

The setting of triode Q1, resistance R 1, capacitor C 2 and relay J 1 delay circuit is because when pressing DC control switch K1, charger is in the moment of charging, luminous tube is at first with green light bright about second, it is bright to transfer red light again, green light goes out, delay circuit can be avoided the green light voltage in this second, makes that charger can operate as normal.

Claims

1, two automatic separated intelligent electric car chargers is characterized in that being arranged on the DC control switch K1 between charger ac input end and the ac power plug, and described DC control switch K1 manually connects, DC control is turn-offed; Be arranged on the normally opened contact of the relay J 2 in the wire loop of DC control switch K1; Be arranged on DC control switch K1 output, the current rectifying and wave filtering circuit of dc supply is provided for complete machine; Constitute switching circuit by triode Q2, Q3, the green light terminal voltage signal time-delay of charger is supplied with described switching circuit as switch controlling signal by relay J 1; Be arranged on the normal opened contact of the relay J 3 between charger dc output end and the charging plug S1.