CN2097494U

CN2097494U - Light guide controller for road lamp

Info

Publication number: CN2097494U
Application number: CN 90221938
Authority: CN
Inventors: 张忠; 王宜群
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-10-11
Filing date: 1990-10-11
Publication date: 1992-02-26

Abstract

The utility model discloses a light guide controller for road lamps which is characterized in that a triode amplifying circuit is used, and photoconductive resistances are additionally loaded on a base electrode; the size of the current of a screen electrode is made to change following the high and low of the negative voltage of a grid electrode; the light guide controller for road lamps is made to always keep at the time of critical luminosity, and stops and feeds electricity in time. Compared with the method of manually stopping and feeding electricity, the utility model can averagely save power for two hours every day.

Description

Light guide controller for road lamp

The present invention relates to utilize photo resistance to control the device of the automatic transmission or not of street lamp according to the power of true illumination (non-direct projection light) on every side.

Stop sending electric problem about city or plant area of factory street lamp, manually stop to send by the designated person, because the designated person stops sending electricity untimely, cause the waste of energy of street lamp or do not have street lamp for guaranteeing the effect of safety, also the someone utilizes way that clock pointer installs electrical nodal additional to reach the purpose that street lamp regularly stops to send electricity, changes 12 hours of two weeks because of existing clock all adopts pointer in diel first.Like this, realize that in diel the timing controlled street lamp is inconvenient; Second because of at all seasons, the time of sunrise, sunset is to change with changes of seasons, so season, the time of daybreak, darkness was not fixed not simultaneously, therefore, stops sending the control of street lamp to adjust at any time by changes of seasons with the clock fixed point.Bring a lot of troubles like this, just for the control personnel.

The purpose of this utility model is to utilize transistor line, no matter how to change season, controller stops to send street lamp all the time timely in critical luminosity, and cost is low, self less energy consumption, and reach miniaturization.

The employing transistor amplifier that is characterised in that of the present utility model, on base stage, install the way of photo resistance additional, make the size of anode current along with the height of grid negative voltage (promptly along with around light strong and weak and change the size of photo resistance resistance) and change, when making controller remain at critical luminosity, can in time stop to send, its housing can adopt injection molding, also can adopt sheet metal forming.

The utility model technical solution is achieved in that

Power transformer adopts 380 volts/6.3 volts transformers to reduce and presses use, and primary side adds 220 volts of power supplys, and secondary side voltage is 3.647 volts; Discharge triode BG adopts 3DA203; Rectifier diode adopts 2CP14, four flag bridge rectifiers; Sensitive relay is selected for use, DE-448 type, 3 volts of direct current midget relaies.In order to satisfy the power needs of the mains switch actuation coil of controlling the street lamp group, increase control node capacity, increase by one again and exchanged 220 volts of JEX-10F type auxiliary relays.Its single node capacity is 5 amperes, and when hardship also connect use with two nodes, its maximum controlling current can reach 10 amperes.The coil of 600 amperes of A.C. contactors of may command.As calculation of capacity with 150 watts in every street lamp, 800 street lamps of every controller may command.This is in large, medium and small city or to do the street lamp group control in ore deposit enterprise be all can meet the demands.The original paper parameter is: B:220V/3.64V; D:2cp14 * 4; BG:3DA203; Dz:Dz-488 type 3V; JZ:JZX-10F type 220V; R light: photo resistance, R2-10K; R3-3K, R4-150 Ω, C1-330 μ f, 35V; C2-100 μ f, 16V.

In use, controller will be placed on and can not be shone by direct light, and photo resistance has on duty indoor of people towards what can truly reflect outdoor light.

When daytime, light was very strong, photo resistance R accepted high light and resistance is increased, and the base voltage Ubt of triode BG increases, and collector current Tc is very little or be cut off, and sensitive relay DE is failure to actuate, and send then can not for the street lamp group.The same day is night gradually, when critical luminosity is reduced in the brightness that its photo resistance is accepted, the resistance of photo resistance is with the also near critical voltage of transistor base voltage U be, and the big young pathbreaker of the electric current I e of collector electrode is in and orders about sensitive relay DE action, gives for the street lamp group.To daybreak in second day, when brightness surpassed critical luminance, Ube increased once again by the determined triode back bias voltage of photo resistance resistance, makes collector current I ε little of discharging sensitive relay armature, and then the street lamp group is just by the power supply failed.

In order to enlarge the selectivity of controller to critical luminosity, in the base loop of triode, increased a potentiometer R2 again, like this, the resistance of regulator potentiometer just can change the light intensity of critical luminosity.It is very important that the stopping of street lamp sent the selection of electric critical luminosity, as the very big waste of sending electricity will cause electric energy too early, is that the meaning that ensures the important measures of city night safe is affected as sending electricity, street lamp excessively evening.So, must send in good time.

Accompanying drawing is street lamp photoconduction control circuit figure.

The utility model compares with manually stopping sending method for electrically, can economize on electricity more than two hours average every day, if 300 street lamps of a controller control, 150 watts every, every day is early, the integrity in one's later years electricity calculated in two hours, but every year amount of electricity saving 32,400 thousand watt-hours, with 0.20 yuan of calculating of per thousand watt-hour, every year, but power cost saving was 6480 yuan, so, have very high economical, societal benefits.

Claims

1, a kind of street lamp photoconduction controller of being made up of housing and transistor amplifier is characterized in that: install photo resistance R additional on base stage; And in the loop, install the sensitive relay DE that is used to stop sending electronic work additional.

2, according to the described street lamp photoconduction of claim 1 controller, it is characterized in that: in the base loop of triode, the R2 of regulator potentiometer resistance Control Critical light is housed.