CN2292041Y

CN2292041Y - Automatic light changer for lamp of motor vehicle

Info

Publication number: CN2292041Y
Application number: CN 97238334
Authority: CN
Inventors: 郑泽辉
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-06-05
Filing date: 1997-06-05
Publication date: 1998-09-23
Anticipated expiration: 2007-06-05

Abstract

The utility model relates to a lighting electric appliance of a motor vehicle, particularly an automatic light changer for light of the motor vehicle. The automatic light changer for light of the motor vehicle is composed of two working circuits of direct-current power supplies, wherein, one working circuit is the working circuit of near-light lighting which is composed of a power supply E, a switch K< 1 >, a light changing switch K< 2 > of optical control, and a near-light lamp d< 1 >, and the other working circuit is the working circuit of far-light lighting which is composed of components E, K< 1 >, and K< 2 >, and a far-light lamp d< 2 >. Through the light changing switch K< 2 > of optical control, automatic conversion of the far and near light can be realized. The lighting electric appliance of a motor vehicle has the advantages of reliable work, safe driving, simple structure, small size, and low cost, and the lighting electric appliance of a motor vehicle is suitable for all kinds of the motor vehicles.

Description

Power actuated vehicle light automatic dimmer

The utility model relates to a kind of power actuated vehicle electric lighting, particularly power actuated vehicle light automatic dimmer.

Night travel illuminating lamp before the existing power actuated vehicle head has country beam and passing light, when send a car in the place ahead, needs staff to close country beam, switch-on dim light, needs in time manually to close passing light, switch-on distance light behind the meeting again; Meet uncivil chaufeur, constant light during meeting, headlight directly shines the other side, and the other side's sight line is interfered, and traffic accident easily takes place.

The purpose of this utility model is to provide a kind of power actuated vehicle light automatic dimmer.

The purpose of this utility model is achieved in that between automobile-used illumination direct supply and distance light, lower beam illumination lamp a light-operated change-over switch K is set ₂, this K switch ₂By photoconductive cell Rm, ic chip, crystal triode BG, relay J, transistor diode D ₁, D ₂, resistance R ₁, R ₂, R ₃, R ₄, capacitor C ₁, C ₂Form, direct supply passes through K ₁, d ₂, J ₂Form a country beam d ₂The normally closed loop of work, power supply, K switch ₁, the normal opened contact j of relay ₁, relay J, crystal triode BG, resistance R ₂, ic chip, photoconductive cell Rm etc. form passing light d ₁The working power loop.When accepting the other side and send a car distant light irradiation, the photoconductive cell resistance becomes very little, and power supply increases by the electric current of Rm, by ic chip and load resistor R ₂Provide big electric current to make its collector emitter conducting, relay J conducting, the normal opened contact j of J for the crystal triode base stage ₁Connect passing light d ₁, passing light work, behind the meeting, it is big that photoconductive cell Rm resistance becomes, j ₁Disconnect j ₂Conducting, i.e. country beam work.

The utlity model has light-operated automatic beam change function, volume is little, and cost is low, and the reliability advantages of higher is easy to promote.

Below in conjunction with the embodiment accompanying drawing the utility model is described in detail.

Accompanying drawing 1 is the utility model simple structure diagrammatic sketch;

Accompanying drawing 2 is the utility model circuit theory diagrammatic sketch;

Member explanation among the figure, E-6～24v direct supply, K ₁-source switch, K ₂-light-operated beam deflector switch, d ₁-passing light, d ₂-country beam, Rm-K ₂In photoconductive cell, R ₁The following subsection resistance of-ic chip and BG base stage, R ₂-BG base load resistance, J-relay, j ₁, j ₂Be respectively J often in contact and normally closed contact, R ₃The load resistor of-J, R ₄-transistor diode D ₁Load resistor, C ₁-diode D ₂Shunt capacitance, C ₂The shunt capacitance of-IC.

With reference to attached Fig. 1 and 2, the utility model is made up of two dc working circuits: first power supply E, source switch K1, light-operated beam deflector switch K ₂With passing light d ₁Form the lower beam illumination pull up circuit, it two is power supply E, source switch K ₁, light-operated beam deflector switch K ₂With country beam d ₂Form the far lighting pull up circuit.Light-operated beam deflector switch K ₂Mainly form, wherein contain diode D by photoconductive cell Rm, crystal ic chip, crystal triode BG, relay J ₁, D ₂, capacitor C ₁, C ₂, resistance R ₁, R ₂, R ₃, R ₄A circuit of forming respectively is provided with resistance R ₁, R ₂, R ₃Main effect be the temperature of crystal triode, to guarantee aerotron BG and relay J reliable operation.The normal opened contact j of relay J ₁Connect passing light d ₁Negative pole, the normally closed contact j of J ₁Connect country beam d ₂Negative pole, d ₁, d ₂Positive pole all be connected on the positive source.To send a car light-illuminating reaction of the other side, its resistance value diminishes, and provides an electric current that changes to make the relay J conducting, normally closed contact j for aerotron BG base stage by ic chip by photoconductive cell Rm ₂Disconnect, country beam puts out, normal opened contact j ₁Connect d ₁, passing light work.Otherwise behind the meeting, the relay J joint resets and normally closed contact j ₂Conducting, country beam d ₂Work, j ₂Disconnect passing light d ₁Extinguish.

Claims

1, a kind of power actuated vehicle light automatic dimmer is made up of two direct supply pull up circuits: first power supply E, source switch K ₁, light-operated beam deflector switch K ₂With passing light d ₁Constitute the lower beam illumination pull up circuit, it two is to comprise E ₁, K ₁, K ₂With country beam d ₂The far lighting pull up circuit, it is characterized in that light-operated beam deflector switch K ₂Mainly by photoconductive cell R _m, compositions such as crystal ic chip, crystal triode BG, relay, wherein be provided with the corresponding resistance, electric capacity and the diode that guarantee aerotron and relay reliable operation, the normal opened contact j of relay ₁With passing light d ₁Negative pole connects, its normally closed contact j ₂Connect the country beam negative pole, passing light d ₁With country beam d ₂Anodal all power connection positive poles.