CN2403626Y

CN2403626Y - Light gathering automatic regulating dimming device for vehicle

Info

Publication number: CN2403626Y
Application number: CN 99250277
Authority: CN
Inventors: 郭杰; 张国贵
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-11-08
Filing date: 1999-11-08
Publication date: 2000-11-01
Anticipated expiration: 2009-11-08

Abstract

The utility model discloses a light-condensing automatic regulating dimming device for motor vehicles. The utility model comprises an electronic switching circuit and a relay; a photosensitive element is arranged on the position of a near focus point of a convex lens, and the conducting or cutoff state of a switching element is determined by the photosensitive element and voltage division of a resistor; a coil of the relay is connected in series with the switching element, and contacts of the relay are respectively connected in series with a power supply of a headlamp on full beam and a dipped headlamp of the motor vehicle. The dimming device of the utility model has the advantages of simple structure and low cost; when the dimming device of the utility model is arranged on the existing motor vehicle, a power supply lines and devices of the original vehicle are not needed to be changed; during night driving and meeting, the utility model can automatically convert the headlamp on full beam and the dipped headlamp so as to ensure driving safety of a driver.

Description

Self-propelled vehicle optically focused automatically regulating Dim Dimmer

When the utility model is a kind of vehicles meeting of night running, the self-propelled vehicle optically focused automatically regulating Dim Dimmer of can automatically switch country beam and passing light.

Growing along with the highway in China communication, the self-propelled vehicle vehicle constantly increases, and existing automotive lamp all is to select country beam or passing light by driver's hand switch, during night travel, the driver will open country beam for seeing the place ahead road conditions clearly, and with the vehicles meeting that travels in opposite directions the time, the driver who has often forgets and closes country beam, switch to passing light, with the accent light meeting, like this because lamp from dazzling, influence the loud and clear prestige of the other side, traffic accident very easily takes place.

The purpose of this utility model is, provides a kind of when two car meetings, can be automatically country beam be switched to passing light, self-propelled vehicle optically focused automatically regulating Dim Dimmer simple in structure.

Form and comprise an electronic switching circuit and a relay, switching valve and relay coil are connected on the power supply, the base bias voltage of switching valve is provided by photosensor and electric resistance partial pressure, photosensor places the perifocus place of convex lens, relay is normally closed, open contact is connected in series in the self-propelled vehicle country beam respectively and the passing light power supply on.

Photosensor places on the perifocus of a light deflector.

On any self-propelled vehicle the utility model has been installed, when the night travel meeting, the driver is again switched country beam and passing light without M/C, can hold bearing circle absorbedly, can good car, the especially long-range vehicle that travels, alleviated driver's working strength greatly, when on existing self-propelled vehicle, installing the utility model additional, the supply line that need not change former car, very convenient.

Fig. 1 is the utility model electronic switching circuit electrical schematic diagram.

Fig. 2 is that photoconductive cell and convex lens position concern scheme drawing.

Fig. 3 is that photoconductive cell and mirror position concern scheme drawing.

Embodiment 1:

Convex lens T is placed on self-propelled vehicle the place ahead, the country beam vertical irradiation that makes driving vehicle in opposite directions on convex lens sheet, photoconductive cell GR ₁, GR ₂Place the perifocus place of convex lens T, relay coil J is connected on switching valve BG ₁Collecting electrode and power supply between, relay normally closed contact J ₁Be connected on the self-propelled vehicle country beam power supply open contact J ₂Be connected on the passing light current supply circuit, photoconductive cell GR in parallel ₁, GR ₂And resistance R ₁Dividing potential drop is given switching valve BG ₁Provide base bias voltage, at switching valve BG ₁Base stage also is added with over the ground by capacitor C and variable resistance R ₂The time delay circuit of forming, during the night travel meeting, driver's manual unlocking storage battery power supply K switch, country beam Y lights, and during meeting, next light is penetrated perpendicular to convex lens sheet in the dead ahead, focuses on photoconductive cell GR ₁On, scioptics T is enhanced several times light and makes GR ₁It is very low that internal resistance becomes, and O point current potential rises among Fig. 1, diode D conducting, BG ₁Base potential raises, switching valve BG ₁Conducting, relay contact action, normally closed some J ₁Disconnect, country beam Y extinguishes automatically, open contact J ₂Close, passing light X lights automatically, and this moment, car light can be not dazzling during meeting, do not influence the loud and clear prestige of driver, in the D conducting, to capacitor C charging, C, R ₂The delay time of time delay circuit is by C, R ₂Value decision, like this, when two cars are very near when just wanting meeting, when convex lens T was shone in the non-dead ahead of the other side's car light light, light was refracted into the photoconductive cell GR that is positioned at another perifocus position ₂The place, high light makes GR ₂Internal resistance diminishes, though this moment photoconductive cell GR ₁Last illumination dies down, and interior resistive is big, and the O current potential still is in high potential among Fig. 1, switching valve BG ₁Still conducting has only when two car meetings arrive the other side's car light irradiation less than convex lens T GR ₁, GR ₂Internal resistance all becomes greatly, and O point current potential descends, and diode D ends, but because C ₁, R ₂Time-lag action still can be kept BG ₁ON time prolongs several seconds, and it is bright to be still passing light, after two cars miss, and BG ₁End, state before the action is recovered in the relay J contact, and country beam Y lights heavily again, moves before repeating automatically when next meeting, need not driver's manual switchover country beam and passing light, alleviate driver's working strength, and it is lighter to drive.

Embodiment 2:

See accompanying drawing 3, only be that with the difference of Fig. 2 convex lens T changes light deflector F, photoconductive cell GR into ₁, GR ₂Still place perifocus 1,2 places of light deflector F respectively, light deflector F is located at self-propelled vehicle the place ahead, light direct irradiation place, and when meeting just began, the other side's country beam shone on the light deflector F from the dead ahead, after reflection, was radiated at perifocus 1 place, photoconductive cell GR ₁The internal resistance step-down, O point current potential rises among Fig. 2, and later circuit working process and actuating of relay process are with embodiment 1, be not repeated, when the car close proximity, when just wanting meeting, the non-dead ahead of the other side's car light light shines light deflector F, and light is refracted into the photoconductive cell GR that is positioned at another perifocus 2 positions ₂On, high light makes GR ₂Internal resistance diminishes, GR in parallel ₁, GR ₂With R ₁Dividing potential drop makes still that the O point is in high potential, BG among the figure ₁Still conducting, later circuit working process and actuating of relay process are with embodiment 1.

Claims

1, a kind of self-propelled vehicle optically focused automatically regulating Dim Dimmer, form and comprise an electronic switching circuit and a relay, switching valve and relay coil are connected on the power supply, it is characterized in that: the base bias voltage of switching valve is provided by photosensor and electric resistance partial pressure, photosensor places the perifocus place of convex lens, relay is normally closed, open contact is connected in series in the self-propelled vehicle country beam respectively and the passing light power supply on.

2, Dim Dimmer according to claim 1 is characterized in that: photosensor places on the perifocus of a light deflector.

3, Dim Dimmer according to claim 1 is characterized in that: the base stage at switching valve also is added with over the ground by capacitor C and variable resistance R ₂The time delay circuit of forming.

4, Dim Dimmer according to claim 1 and 2 is characterized in that: described photosensor places the photosensor parallel connection at two perifocus places of convex lens or light deflector to constitute respectively by two.