CN2063494U - Automobile automatic light-varying device - Google Patents

Abstract

The utility model relates to an automatic dimming device of automobiles, comprising a dimming control circuit, a voltage stabilizing circuit, a delay switching circuit and an overtaking indicating circuit. When automobiles driving at night meets, the utility model can automatically switch off the high-beam headlamp of the automobile and switch on the low-beam headlamp of the automobile according to the requirements of the additional fourth clause of the forty fifth terms of the sixth chapter of the traffic laws and regulations, and the high-beam headlamp is not switched on. As a result, the driver can see clearly the road at night and obey consciously the laws, and thus the traffic accident and human body injuries can be avoided.

Description

Automobile automatic light-varying device

The utility model relates to the auto meter technical field, specifically the car bulb autochanger.

The light transformation device of automotive use is to be handled by driver's hand or pin now.And this changer is very easily malfunctioning or misoperation, and more difficult is driver can't can't guarantee to extinguish country beam outside legal 150 meters when two cars are driven night.The clear-cut nighttime meeting of the driver who has does not put out country beam, causes to be difficult for seeing clearly the road surface mutually, causes traffic accident easily.After meeting accident, traffic department can't investigate the responsibility that really causes accident person.Make people's property and life security unsecured.According to the statistics made by the departments concerned, have 1/3rd traffic accident by night automobile meeting light dazzle and can't see the road surface clearly and cause.

The purpose of this utility model is according to the driving of the 49 Annex IV money of traffic law chapter 6 regulation: " automobile night not have to throw light on or during underlit travels down, 150 meters that must send a car apart from the opposite are closed country beam mutually, use passing light instead and travel ".And design-calculated car bulb autochanger makes and drives at automobile night to turn off country beam at a distance of 150 meters automatically when outer, uses passing light instead to travel, in case meeting is finished, opens country beam automatically.Can reduce traffic accident like this, guarantee safety traffic.

The utility model car bulb autochanger is by the light conversion control circuit, mu balanced circuit, and delay switch circuit, the illustrative circuitry of overtaking other vehicles is formed.

The light conversion control circuit comprises photoconductive cell, transistor, relay, light-emitting diode, electric capacity, resistance.

Mu balanced circuit comprises stabilivolt, resistance.

Delay switch circuit comprises switch, resistance, electric capacity.

The illustrative circuitry of overtaking other vehicles comprises resistance, switch.

The utility model has the advantages that traveling automobile can be used passing light instead by the regulation SELF CL country beam of 49 Annex IV moneys of traffic law chapter 6 when automobile was driven night.Be certain about road surface and the place ahead when making driver's meeting easily, can avoid life injures and deaths and traffic accident.

Below in conjunction with accompanying drawing embodiment is elaborated:

Fig. 1 is the autochanger schematic circuit diagram of car bulb.

According to shown in Figure 1, night automobile when travels down, when meeting the irradiation of opposite car bulb or street lighting, R ₁Resistance can rapid decline (R under light-illuminating ₁Be photoconductive cell), make transistor BG ₁Saturated rapidly, BG ₂End BG ₃Saturated.The relay J adhesive, red light emitting diodes is bright, and passing light is connected.Meeting is not later or when having street lighting, R ₁Resistance sharply rises, BG ₁End, relay discharges, and green LED is bright, and country beam is connected, and has finished the overall process that becomes light, C ₁, C ₃It is the shunt capacitance that prevents the circuit self-excitation.

In order to make pull up circuit energy stable operation, the spy is provided with by R ₈And D ₁The mu balanced circuit of forming.The driver can observe road conditions with country beam at any time when driving for convenience, and the spy is provided with by K _1-2, R ₁, W ₁, C ₂The delay switch circuit of forming.Its principle of work is by K ₁, by R ₁, W ₁To C ₂Charging is at electrically-charged while BG ₁End BG ₂Saturated, BG ₃End, relay J discharges, and country beam is bright.Work as C ₂After being full of electricity, BG ₁Saturated, BG ₂End BG ₃Saturated, the adhesive of relay fourth, passing light is bright.About about 1 second of conversion time.

Overtake other vehicles circuit by K ₃And R ₇Form, press K ₃Connect R ₇, make BG ₃Saturated, the adhesive of relay fourth, passing light is bright, unclamps K ₃, BG ₃By restoring to the original state, one by a pine, and instant and near light is flicker alternately, and signal is overtaken other vehicles.

Claims (2)

1, a kind of car bulb autochanger, comprising mu balanced circuit, delay switch circuit, the illustrative circuitry of overtaking other vehicles is characterized in that light conversion control circuit in addition, R in relay J one end of light conversion control circuit and the mu balanced circuit ₂Two ends connect, R ₁, R ₃, R ₆And R ₈The other end connect R ₁The other end, BG ₁Collecting electrode and the W of delay switch circuit ₁Connect R ₄, R ₅, R ₁₀Link to each other with negative pole.

2, car bulb autochanger according to claim 1 is characterized in that the light conversion control circuit is by photoconductive cell R ₁, transistor BG ₁, BG ₂, BG ₃, relay J, light-emitting diode D ₂, D ₃, cond C ₃, resistance R ₃, R ₆, R ₄, R ₅, R ₁₀Form.