CN2083827U

CN2083827U - Photo-controlled timing energy-saving switch for road lamp

Info

Publication number: CN2083827U
Application number: CN 90222525
Authority: CN
Inventors: 王根锁
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-10-27
Filing date: 1990-10-27
Publication date: 1991-08-28

Abstract

The utility model relates to a photo-controlled timing energy-saving switch for road lamp which is mainly composed of a photosensitive tube, an optical control switch circuit, a filter circuit, a driving circuit, a time-delay circuit and so on. The strong and weak of the natural light illuminate the road lamp through the photosensitive tube, the optical control switch circuit, the filter circuit and the driving circuit. The utility model controls the length of the street lighting time through the time-delay circuit and achieves the purpose of definite-time illumination.

Description

Photo-controlled timing energy-saving switch for road lamp

The utility model relates to a kind of light-operated timing power down switch that is used for street lamp.

Transitional street lamps in use especially in vast rural area, small towns, is commonly used for the illumination of normal bright lamp or logical clouds, the waste electric energy.

The purpose of this utility model is to provide a kind of and controls the switch that street lamp regularly cuts out by available light strong and weak control street lighting with by delay circuit.

The purpose of this utility model is to realize like this, the power of available light makes street lighting by photosensitive tube, light-controlled switching circuit, filter circuit, drive circuit, and the length of the time by delay circuit control street lighting reaches the purpose of timing lighting saves energy.

Accompanying drawing 1 is the utility model particular circuit configurations schematic diagram.

Accompanying drawing 2 is added with the discharge circuit structural representation for the utility model.

Below in conjunction with accompanying drawing the utility model is discussed in detail below:

The collector electrode of phototriode 3DU is connected with power supply B line by resistance R 1, and emitter is connected with power supply C line, and the control end G of controllable silicon T1/2CT is connected on the 3DU collector electrode and constitutes light-controlled switching circuit; The A end of controllable silicon T1/2CT is connected with power supply B line by resistance R 3, and the K end is connected with power supply C line by capacitor C 1, constitutes a step-down, current rectifying and wave filtering circuit; The K utmost point of R5 one termination T1, two, six pin of another termination ICNE555, and receive the positive terminal of C2, the negative pole termination power C line of C2, the K that 8 pin of ICNE555 are received T1 extremely goes up, 1 pin of ICNE555 is connected with power supply C line, and 5 pin are connected with power supply C line by resistance R 6, constitute a delay circuit by R5, C2, R6 and ICNE555 etc.; 3 pin of ICNE555 meet the control end G of bidirectional triode thyristor, and bidirectional triode thyristor A1, A2 end and bulb M are serially connected between power supply B, the C line, constitute a drive circuit.

Photosensitive tube can adopt photodiode or phototriode also can adopt the C of the DD01 that amputates outer metal cap, e1 knot power supply B line, the C line connects alternating current 220V, light is comparatively sufficient by day, photosensitive tube 3DU conducting, its current collection is electronegative potential very, the G level Triggerless of controllable silicon T1, not conducting of T1, ICNE555 does not have operating voltage, do not work, when night light deepening, photosensitive tube 3DU becomes high-impedance state by low resistance state, its current collection is high potential very, T1 has the triggering signal conducting, and the K level output voltage of T1 is given after C1 filtering by C2, the delay circuit power supply that R5 and ICNE555 constitute, delay circuit is started working, R3 is a dropping resistor, R2 be amplitude limit resistance in case the collector voltage of photosensitive tube 3DU is too high, during the firm conducting of T1,2 of IC, 6 pin have triggering signal, but voltage is lower, because the internal action of IC, 3 pin of IC are high voltage, trigger the T2 conducting, electric light M is bright, because R5, the numerical value that C2 selects is bigger, and because 1 pin of IC, resistance R that 5 pin connect 6 is brought up to 1:11 with the delay time constant by 1:1 for 1.5K, therefore needs through about 6 hours, IC just overturns, 3 pin become electronegative potential, and T2 ends, and electric light extinguishes.Finish timing working.2 pin at ICNE555.Add a diode D between 6 pin links and 8 pin, the i.e. anode of the connection termination D of 2 pin, 6 pin, 8 pin connect the negative terminal of D, between the K of T1 end and power supply C line, add a resistance R 4 and constitute a discharge circuit, discharge circuit can make T1 cut out the discharge as early as possible of back time-delay part, make so on the one hand regularly advance next time between accurately, it is bright than concealed light to work as daytime cloudy light, and behind the fine day, can street lamp be extinguished again.

The utility model is simple in structure, and delay time can be selected arbitrarily, especially is fit to vast villages and towns in rural areas and uses.

Claims

1, a kind of light-operated timing power down switch that is used for street lamp is characterized in that the collector electrode of phototriode 3DU passes through resistance R ₁Be connected with power supply B line, emitter is connected controllable silicon T with power supply C line ₁The control end G of/2CT is connected on the 3DU collector electrode and constitutes light-controlled switching circuit; Controllable silicon T ₁The A end of/2CT passes through resistance R ₃Be connected with power supply B line, the K end passes through capacitor C ₁Be connected with power supply C line, constitute a tool step-down, current rectifying and wave filtering circuit, R ₅One termination T ₁The K utmost point, another termination ICNE ₅₅₅Two, six pin, and receive C ₂Positive terminal, C ₂Negative pole termination power C line, ICNE ₅₅₅8 pin receive T ₁K extremely go up ICNE ₅₅₅1 pin be connected with electric current C line, 5 pin pass through resistance R ₆Be connected with power supply C line, by R ₅, C ₂, R ₆And ICNE ₅₅₅Deng delay circuit of formation, ICNE ₅₅₅Meet the control end G of bidirectional triode thyristor, bidirectional triode thyristor A with 3 pin ₁, A ₂End and bulb M are serially connected between power supply B, the C line, constitute a drive circuit; Power supply B, C line connect alternating current 220V.

2, a kind of light-operated timing power down switch that is used for street lamp according to claim 1, it is characterized in that and between 2 pin, 6 pin links and 8 pin of ICNE555, to add a diode D, the i.e. anode of the connection termination D of 2 pin, 6 pin, 8 pin connect the negative terminal of D, add a resistance R 4 and constitute a discharge circuit between the K of T1 end and power supply C line.

3, a kind of light-operated timing power down switch that is used for street lamp according to claim 1 and 2 is characterized in that photosensitive tube can adopt phototriode or photodiode, also can adopt C, the e knot of the DD01 that amputates outer metal cap.