CN2367503Y - Vehicle-light self-off control switch - Google Patents

Abstract

The utility model relates to a car lamp self-extinguishing control switch used in motor vehicles, which is composed of a casing and a control circuit, the casing has a lead hole, the input end of the internal control circuit is connected to a key through the wire in the lead hole The switch and control circuit are composed of an integrated control circuit IC and peripheral auxiliary circuits. Its structure is simple, easy to use, safe and effective, power saving, and low in cost. It uses battery power or rectifies the alternating current generated by the vehicle generator as a power supply for lights. The utility model has the functions of turning off when the vehicle is turned off, not turning on when the vehicle is started, and being able to switch on and off the lights at will in the starting state, which is a creative contribution to the existing car light switch and has good economic and social benefits.

Description

Auto light off control switch

The utility model relates to a vehicle lamp self-extinguishing control switch mounted on motor vehicles such as automobiles and motorcycles.

At present, the light control switch on automobiles and motorcycles is a mechanical toggle or lever switch. As long as the light control switch is in the open position, the vehicle starts, the car, etc. are on, the vehicle is turned off, and the lights are not on. It is operated and controlled by human beings. In this way, after parking at night, the key is pulled out and the car lights are forgotten. In the daytime, after the car is started, the car lights are not noticed, so cars, especially motorcycles, are often seen on the street during the day. When the car lights are on, it not only wastes power, but also affects other vehicles and pedestrians, and even has adverse consequences.

The purpose of the utility model is to provide a new type of control switch for auto-light self-extinguishing, so as to solve the problem of auto-extinguishing the auto-light when it is not needed.

The purpose of this utility model is achieved in that an automatic control circuit is installed in the housing, and the start key switch on the vehicle is connected to the input end of the control circuit. The control circuit is composed of an integrated control circuit and a peripheral auxiliary circuit. , diodes, relays and resistors, capacitors.

The utility model has the advantages of simple structure, convenient use, safety and effectiveness, power saving, low cost, easy production and application, and good economic and social benefits.

The following structural drawings describe the structure of the utility model in detail.

Fig. 1 is the perspective view of the external structure of the utility model.

Fig. 2 is the control circuit diagram of the utility model.

Given by Fig. 1 and Fig. 2, the utility model is composed of a housing and a control circuit, the housing 1 has a lead hole 2, and the input end of the internal control circuit is connected to the start key switch on the vehicle through the wire in the lead hole 2 K1, the internal control circuit is composed of integrated control circuit IC and peripheral auxiliary circuit. The auxiliary circuit is composed of triode T, relay J1, diodes D1, D2, D3, switch K2, resistors R1-R4, and capacitors C1-C3. Switch K2 is the switch 2 in Figure 1. Pin 1 and pin 4 of the integrated control circuit IC are connected in parallel with capacitor C1, Zener diode D1, and both ends of D2 are connected. Pin 2 is grounded through capacitor C2 and connected with the switch. K2 and pin 6 are connected to resistor R2, and then connected to capacitor C3 and resistor R3 through switch K2, pin 3 is connected to resistor R3, R1 and pin 7, pin 8 is connected to pin 4 and the emitter of triode T, resistor R1 , The other end of R2 is respectively connected to the base and collector of the triode, the diode D3 and the relay J1 are connected to the resistor R4 and the resistor R2 and connected to the collector of the triode T, the key switch K1 is connected to the capacitor C1, diodes D1, D2, and the transistor T The emitter, the 4 pins and 8 pins of the integrated control circuit IC are connected.

In a typical circuit of the utility model, the integrated control circuit adopts a 555 integrated block, the triode T is 8550, the diodes D1 and D2 are 1W12V voltage stabilizing diodes, D3 is a 1N4001 type diode, the capacitor C1 is 22V100μF, the capacitor C2 is 0.01μF, and the capacitor C3 is 0.1μF, resistor R1 is 4.7kΩ, resistor R2 is 300KΩ, resistor R3 is 1MKΩ, resistor R4 is 150Ω, switch K2 is a light touch button switch.

The working condition of the present utility model is that the two input terminals of the circuit are connected to the vehicle storage battery power supply through the key switch K1 (realized through the wire in the lead hole), and the switch K2 is installed on the control panel of the automobile or on the handlebar of the motorcycle through the wire , can replace the original car light switch, the two output terminals of the relay J1-1 are connected to the headlights and taillights, K1 is closed, that is, after the key is turned on, it is filtered by the capacitor C1 and protected by the diode D1, and the DC power is supplied to the 555 integrated block, the second of the integrated block The initial voltage of pin 6 is zero, and the output of pin 3 is high level, then the transistor T (8550) is cut off, and the relay J1 is still in the released state at this time, the circuit for controlling the headlights and taillights of the vehicle is not turned on, and the lights are not on At the same time, the high voltage of the third pin of the integrated block is charged to the capacitor C3 through the resistor R3. If you press the light touch button switch K2, the high level of the charged capacitor is added to the second and sixth pins of the 555 integrated block, so that the third pin Output low voltage, then T is turned on, and the second and sixth pins are kept at high level through the resistor R2. At the same time, the relay J1 is energized and closed, so that the circuit for controlling the vehicle headlights and taillights is turned on, and the lights are on. Press the switch K2 again, the capacitor C3 has been discharged to a low level and added to the 2nd and 6th pins of the 555 integrated block, so that the 3rd pin quickly becomes a high level, so that T is cut off, and the relay J1 is de-energized and released. Make the headlights and tail lights go out, and keep this new state through the resistor R2. The charging and discharging of the capacitor C3 is completed by the 3rd and 7th pins of the 555 output terminal through R3, and it takes about 0.1 second. This is the minimum time between pressing the switch K2 twice. Actuating the switch K2 is invalid, so it can be seen that each time the switch K2 is pressed, the state of the circuit changes once, and the action of turning on and off the light is completed. When K1 is closed, regardless of whether the relay in the circuit is in the pull-in or release state, that is, regardless of whether the headlights and tail lights are on or off, when K1 is disconnected, the vehicle key is removed, the circuit is in a power-off state, and the lights are not on. K1 is unscrewed again, and the circuit is closed, but the headlights and taillights on the vehicle are not on, so that it can be used to forget to turn off the lights after parking, and after restarting the car, the lights will not be on.

The light touch button switch K2 can also be a toggle trigger switch. The relay J1 is a small electromagnetic relay, and a 12V JRC-21FB relay can be selected. The resistor R4 can adjust the voltage at both ends of the relay J1, and the diode D2 acts as a protective relay. The circuit voltage between 9-14 volts can meet the pull-in and release of the relay, can meet the requirements of different vehicles and batteries of different voltages, and adapt to the situation that the voltage of the power supply circuit is passive due to the working conditions of the vehicle.

As can be seen from the above, the utility model can forget to turn off the lights after parking, and after restarting the car, the lights will not be on. Because there is no such way to use the battery power supply circuit or the alternating current generated by the vehicle generator on the vehicle at present. As the power supply of the vehicle headlight and taillight control circuit, the rectifier has the function of turning off when the vehicle is turned off, not turning on when the vehicle is started, and being able to switch the lights at will in the starting state. Therefore, the introduction and use of the utility model is an improvement on the existing A creative contribution of a car light switch, which has good economic and social benefits.

Claims (2)

1. The self-extinguishing control switch of the car light is composed of a casing and a control circuit. It is characterized in that there is a lead hole (2) on the casing (1), and the input end of the internal control circuit is connected to the vehicle through the wire in the lead hole (2). On the start key switch K1, the internal control circuit is composed of an integrated control circuit IC and peripheral auxiliary circuits. 2. The auto-light self-extinguishing control switch according to claim 1, wherein said peripheral auxiliary circuit is composed of triode T, relay J1, diodes D1, D2, D3, switch K2, resistors R1-R4, capacitors Composed of C1-C3, pin 1 and pin 4 of the integrated control circuit IC are connected with capacitor C1, Zener diodes D1 and D2 connected in parallel, pin 2 is grounded through capacitor C2, and is connected with switch K2 and pin 6 Connect with resistor R2, then connect with capacitor C3 and resistor R3 through switch k2, connect resistor R3, R1 and pin 7 with pin 3, pin 8 with pin 4 and the emitter of triode T, the other end of resistor R1 and R2 The base and collector of the triode are respectively connected, and the diode D3 and the relay J1 are connected with a resistor R4 and a resistor R2 and connected with the collector of the triode T.

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