CN201131070Y - An electronic light controller - Google Patents

Abstract

The utility model relates to an electronic light controller whose main body is composed of a shell, a base, an internal electrical circuit installation board and electrical connection feet, and is characterized in that a sealing gasket is arranged near the mouth below the base, and the electrical circuit installation board contains It is provided with a signal detection circuit acted by a phototransistor, a drive working circuit composed of two triodes and a resistor, a signal processing circuit acted by a microprocessor chip CPU with a photometric value setting control pin on the upper part, and a capacitor C4 and The voltage stabilizing circuit of C5 and the voltage stabilizing tube D3, the control execution circuit and auxiliary components acted by the relay J. The microprocessor chip CPU controls the lighting system to work according to the set light brightness value. In addition to ensuring the work according to the change of light brightness, it also has the function of anti-instant light interference, and the electric lighting system will not occur frequent flickering in the prior art. Bright situation, simple structure, reliable work, and strong practicability.

Description

An electronic light controller

technical field

The utility model relates to a light control device, in particular to an electronic light control device which utilizes the change of the illumination brightness in the environment to realize the connection or disconnection of the control power supply.

Background technique

The light controller is an electronic device that controls the on or off of the circuit through the sensitive response of the photosensitive component to the light intensity. At present, it is mostly used for automatic control of power supplies such as street lamps, community lighting lamps and advertising light boxes that need to be powered on at night. aspect. At present, the commonly used photocontrollers are mostly electromechanical, using photoresistors as photoelectric sensors, driving thermal relays to work through the cooperation of thermistors and bimetallic strips, and changing the on/off state of their contacts, so as to realize electrical control. On/off of lighting circuit power. Due to the poor anti-interference ability of photoresistors to instantaneous light like vehicle headlights, false triggering is prone to occur, which affects the normal operation of electrical lighting systems. The work of bimetallic strips is restricted by other components, and the temperature stability is poor. Under the easy aging life is not long, so the work reliability is not high. For this reason, light controller products with double sets of bimetallic strips in parallel and bimetallic strip light controller products with timers have come out in recent years, which have a certain effect on improving the working reliability and working life of the light controller. But the overall structure is relatively complicated, and because the time of sunrise and sunset is not the same throughout the year, it is necessary to manually adjust the time program of turning on and off the lights in the morning and evening according to the seasons, which is troublesome, and the cost of manufacturing and maintenance is also high. Both economical and practical considerations are not ideal.

Contents of the invention

The purpose of the utility model is to provide an electronic light controller with strong working reliability, high degree of automatic control, and ability to distinguish instantaneous disturbing bright light.

The main body of the electronic light controller of the utility model is composed of a shell, a base, an internal electrical circuit mounting plate and an electrical connecting foot. The circuit mounting plate is installed on the base, and the feature is that: a sealing gasket is also provided at the position near the mouth below the base; the electrical circuit mounting plate includes a signal detection circuit, a driving working circuit, Signal processing circuit, voltage stabilizing circuit, control execution circuit and auxiliary components and parts, described signal detection circuit is acted by the phototransistor G1, includes and is provided with triode G2, G3 and resistance R1 in the driving working circuit, and signal processing circuit is composed of microprocessor The chip CPU serves as the chip, the voltage stabilizing circuit includes capacitors C4 and C5 and the voltage stabilizing tube D3, the control execution circuit is served by the relay J with the normally closed contact K1, and the auxiliary components include resistors R2, R3, R4 and R5 , capacitors C1, C2 and C3 and diodes D1 and D2.

In the state of electrical connection, the collector of the phototransistor G1 is connected with the emitters of the triodes G2 and G3, one end of the resistor R1, a voltage output terminal of the regulated power supply and one end of the current limiting resistor R5, and the terminals of the triodes G2 and G3 The collector is connected to one end of the working coil of the relay J and the anode of the direction-limiting diode D2, and connected to the output control pin of the microprocessor chip CPU and the other end of the capacitor C3 respectively through the resistor R4, and the working coil of the relay J The other end is connected with the negative poles of the direction-limiting diodes D2 and D1 and the other end of the current-limiting resistor R5. The positive pole of the direction-limiting diode D1 is connected with one end of the normally closed contact of the relay and one end of the resistor R4. The normally closed contact The other end of the point is electrically connected to one input terminal of the power supply, the other input terminal of the power supply is connected to the other voltage output terminal of the regulated power supply and one end of the isolation capacitor C1 and C3, and the other end of the isolation capacitor C1 is connected to the The emitter of the phototransistor G1 is connected, and connected with the signal input pin of the microprocessor chip CPU through the resistor R2, and the bases of the transistors G2 and G3 are connected together, and connected with the microprocessor chip CPU through the resistor R3 and the capacitor C2. The control signal output pins are connected. In addition, the microprocessor chip CPU is also provided with photometric value setting control pins A, B, C and D.

When working, when there is light of a certain brightness on the phototransistor G1, the internal resistance becomes smaller, the current increases, and it is in the conduction working state, so that the emitter voltage of the triode G2 and G3 is reduced, so it is turned on, and the relay J coil is energized to work , driving its normally closed contact to turn off, cutting off the working power of the electrical lighting system; and when the ambient light is dark, the internal resistance of the phototransistor G1 increases, the current becomes smaller, and the emitter voltage of the triode G2 and G3 Maintained at the output voltage of the regulated power supply, no conduction, at this time there is no current passing through the coil of the relay J, the contacts are in the normally closed state, and the lighting system is normally energized and working. In addition, the microprocessor chip CPU has the function of delay control, which is to set the photometric value of ON/OFF through the photometric value setting control pins A, B, C and D, and then control the triode through the output of capacitor C2 and resistor R3 The base voltage of G2 and G3 is realized.

Based on the above-mentioned concept, the electronic light controller of the present utility model has a microprocessor chip CPU inside, and the microprocessor chip CPU controls the work of the lighting system according to the set light brightness value, so as to ensure normal light brightness in the surrounding environment. Change work, and also has the function of anti-instantaneous light interference, the relay will not change the working state frequently, and the electric lighting system will not occur the frequent flashing in the prior art, which is conducive to improving the reliability and stability of the system In addition, because a waterproof gasket is installed near the edge of the shell, it can ensure the normal working life of the electronic light controller of the utility model. Therefore, the overall structure is simple, the work is safe and reliable, and it can automatically work according to the brightness of the light. Economical and highly practical.

Description of drawings

Fig. 1 is the overall structural representation of the utility model embodiment;

Fig. 2 is a diagram of the electrical working principle of the embodiment of the utility model.

In the picture:

1. Shell 2. Base 3. Electrical circuit mounting plate 4. Electrical connection feet

5. Light-transmitting window 6. Sealing gasket 7. Signal detection circuit 8. Drive working circuit

9. Signal processing circuit 10. Voltage stabilization circuit 11. Control execution circuit

Detailed ways

Below in conjunction with accompanying drawing and typical embodiment, the utility model is further described.

In Fig. 1 and Fig. 2, the main body of the electronic light controller of the present utility model is composed of a housing 1, a base 2, an internal electrical circuit mounting plate 3 and an electrical connection pin 4, and the housing 1 is provided with a light-transmitting window 5, the base The seat 2 is assembled on the position near the mouth of the shell 1, and the internal electrical circuit installation plate 3 is installed on the base 2, and the feature is that a sealing gasket 6 is also arranged on the position near the mouth below the base 2 ; The described electrical circuit mounting board 3 includes a signal detection circuit 7, a drive operating circuit 8, a signal processing circuit 9, a voltage stabilizing circuit 10, a control execution circuit 11 and auxiliary components, and the described signal detection circuit 7 is composed of The phototransistor G1 acts as the driver, the driving circuit 8 includes triodes G2, G3 and resistor R1, the signal processing circuit 9 is served by the microprocessor chip CPU, and the voltage stabilizing circuit 10 includes capacitors C4 and C5 and a voltage stabilizing tube D3 , the control execution circuit 11 is acted by a relay J with a normally closed contact K1, and the auxiliary components include resistors R2, R3, R4 and R5, capacitors C1, C2 and C3 and diodes D1 and D2.

In the state of electrical connection, the collector of the phototransistor G1 is connected with the emitters of the triodes G2 and G3, one end of the resistor R1, a voltage output end of the voltage stabilizing circuit and one end of the current limiting resistor R5. The collector is connected to one end of the working coil of the relay J and the anode of the direction-limiting diode D2, and connected to the output control pin of the microprocessor chip CPU and the other end of the capacitor C3 respectively through the resistor R4, and the working coil of the relay J The other end is connected with the negative poles of the direction-limiting diodes D2 and D1 and the other end of the current-limiting resistor R5. The positive pole of the direction-limiting diode D1 is connected with one end of the normally closed contact of the relay and one end of the resistor R4. The normally closed contact The other end of the point is electrically connected to one input terminal of the power supply, the other input terminal of the power supply is connected to the other voltage output terminal of the regulated power supply and one end of the isolation capacitor C1 and C3, and the other end of the isolation capacitor C1 is connected to the The emitter of the phototransistor G1 is connected, and connected with the signal input pin of the microprocessor chip CPU through the resistor R2, and the bases of the transistors G2 and G3 are connected together, and connected with the microprocessor chip CPU through the resistor R3 and the capacitor C2. The control signal output pins are connected. In addition, the microprocessor chip CPU is also provided with photometric value setting control pins A, B, C and D.

Claims (3)

1. electronic type light-controller, by shell (1), pedestal (2), internal electric circuit mounting panel (3) and be electrically connected pin (4) and form, shell (1) is provided with printing opacity form (5), pedestal (2) assembling is arranged on the nearly mouth position of shell (1), internal electric circuit mounting panel (3) is mounted on the pedestal (2), be characterised in that on the nearly mouth position of pedestal (2) below and also be provided with seal washer (6), comprise on the electric wiring mounting panel (3) and be provided with signal deteching circuit (7), drive operating circuit (8), signal processing circuit (9), voltage stabilizing circuit (10), control executive circuit (11) and auxiliary element, wherein:

A. described signal deteching circuit (7) is filled the post of by phototriode G1;

B. drive to comprise in the operating circuit (8) and be provided with triode G2, G3 and resistance R 1, signal processing circuit (9) is filled the post of by microprocessor chip CPU

C. comprise in the voltage stabilizing circuit (10) and be provided with capacitor C 4 and C5 and voltage-stabiliser tube D3, control executive circuit (11) is filled the post of by the relay J of band normally-closed contact K1

D. include resistance R 2, R3, R4 and R5 in the auxiliary element, capacitor C 1, C2 and C3 and diode D1 and D2.

2. electronic type light-controller according to claim 1, the collector electrode and the triode G2 that it is characterized in that described phototriode G1, the emitter of G3, one end of resistance R 1, a voltage output end of voltage stabilizing circuit and the end of current-limiting resistance R5 connect mutually altogether, triode G2, one end of the collector electrode of G3 and the actuating coil of relay J and limit are joined to the positive pole of diode D2, and after resistance R 4, join with the output control pin of microprocessor chip CPU and the other end of capacitor C 3 respectively, the other end of relay J actuating coil connects to the negative pole of diode D2 and D1 and the other end of current-limiting resistance R5 mutually altogether with limit, limit connects with an end of the normally-closed contact of relay and an end of resistance R 4 mutually altogether to the positive pole of diode D1, one end of incoming cables of the other end of normally-closed contact and power supply is electrically connected, another end of incoming cables of power supply connects mutually altogether with the end of another voltage output end of stabilized voltage power supply and isolation capacitance C1 and C3, the emitter of the other end of isolation capacitance C1 and phototriode G1 joins, and after resistance R 2, join triode G2 with the signal input pin of microprocessor chip CPU, the base stage of G3 connects altogether after join with the control signal output pin of microprocessor chip CPU behind resistance R 3 and the capacitor C2.

3. electronic type light-controller according to claim 1 is characterized in that also being provided with on the described microprocessor chip CPU shading value and sets control pin A, B, C and D.

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