CN2386578Y

CN2386578Y - Time-delay blackout energy saving switch

Info

Publication number: CN2386578Y
Application number: CN 99227197
Authority: CN
Inventors: 钟良发
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-01-28
Filing date: 1999-01-28
Publication date: 2000-07-05
Anticipated expiration: 2009-01-28

Abstract

The utility model relates to a time-delay blackout energy saving switch, which is composed of a light touch switch SB, a charge and discharge circuit of a capacitor C3, a triode Q, a solid relay J, a power supply circuit thereof, a fuse FU, a light-emitting diode LED, diodes D3 and D4, a manual switch S, etc. The utility model which is provided with a continuous lighting switch has the advantages of small size, high reliability of assembly and adjustable delay time; the utility model can be started by current limiting, and the service life of a lamp can be prolonged. The utility model is a time delay switch which is used for lighting for stairs, hallways, etc.

Description

A kind of delay cut-off power down switch

The utility model relates to a kind of mains switch, particularly a kind of power down switch of energy delay cut-off.

At present, the delay switch that the lighting lamp that stair, passageway etc. are located is commonly used does not have the current limliting start-up circuit, because the impulse current of the moment of switching on causes filament easily broken, corridor lamp switch number of times is frequent, and bulb is perishable, the influence illumination; In addition, time expand, is non-adjustable, can not delay time as required, and when needing sometimes to throw light on for a long time, again can not continuous illumination.

The purpose of this utility model provides that a kind of volume is little, reliability is high, delay time is adjustable, be provided with the continuous illumination switch, can prolong the current-limited startup formula delay cut-off power down switch of bulb life.

For achieving the above object, delay cut-off power down switch of the present utility model is by fuse FU, current-limiting resistance R1, LED and contact button SB form, be characterized in: the contact button SB other end A point that is connected in fuse FU and resistance R 1 interface point is connected to the series loop of decompression capacitor C1 and current-limiting resistance R2 composition, the lower end of resistance R 2 is that the B point is connected to voltage stabilizing didoe D5, the zero line that the positive pole of voltage stabilizing didoe D5 connects alternating current 220V is the N point, the negative pole of voltage stabilizing didoe D5 connects the positive pole of rectifier diode D1, the negative pole C point of diode D1 connects the discharged in series loop of positive pole and resistance R 3 and the adjustable potentiometer W composition of filter capacitor C3, the negative pole connecting to neutral line N point of capacitor C 3, the base stage of another termination triode Q of adjustable potentiometer W, the emitter connecting to neutral line N point of triode Q, collector electrode connects 2 pin of solid state relay J, 3 pin of solid state relay J connect the live wire L point of alternating current 220V by fuse FU, 4 pin of solid state relay J are that the zero line of F point and alternating current 220V constitutes output of the present utility model, the F point is connected to the step-down current limliting series loop of capacitor C 2 and resistance R 5 compositions, the lower end of resistance R 5 is that the D point connects the negative pole of voltage stabilizing didoe D6 and the positive pole of rectifier diode D2, the anodal connecting to neutral line N point of voltage stabilizing didoe D6, the negative pole of diode D2 is that the E point connects the positive pole of filter capacitor C4 and the end of current-limiting resistance R4,1 pin of another termination solid state relay J of resistance R 4, cross-over connection rectifier diode D3 between B point and D point.

The utility model is owing to adopt small-sized components and parts, little current work mode, and device volume is little, reliability is high; Because adopt adjustable potentiometer W, delay time is adjustable; Owing to K switch is housed, has the function of continuous illumination; Give bulb powered by diode D4 during again owing to startup, make the bulb current-limited startup, can prolong bulb life.

Fig. 1 is a circuit diagram of the present utility model.

The utility model is described in further detail below in conjunction with accompanying drawing.

Among Fig. 1, fuse FU plays the short-circuit protection effect.LED is luminous through the conducting in each positive half cycle of resistance R 1 step-down current limliting, when pressing contact button SB, A orders, one the tunnel is rectified into half-wave through rectifier diode D4 with alternating current 220V delivers to the F point, bulb gets the electric light that slowly shades, thus the time voltage have only half of rated value, so starting current also has only normal value half, filament is hit and significantly reduces, but life-saving.Another road is through capacitor C 1 step-down, resistance R 2 current limlitings, diode D5 voltage stabilizing, obtain alternating voltage about 6V at the B point, again through the direct voltage of diode D1 commutation capacitor C3 filtering about C point acquisition 6V, and fast C3 is full of (about 0.2--0.3 second), Q provides base bias current for triode, makes it conducting; Also conducting of D3 when B orders electricly, make the D point also obtain alternating voltage about 6V, again through diode D2 rectification, capacitor C 4 filtering, obtain the direct voltage of about 6V at the E point, this voltage is added on solid state relay J control end positive pole 1 through current-limiting resistance R4, and solid state relay J control end negative pole 2 directly connects the collector electrode of triode Q, in case triode Q conducting, output 3,4 conductings of solid state relay J directly are switched to the F point with the live wire L point of alternating current 220V by fuse FU, make bulb RL normally luminous.From pressing the button bulb normal luminous 0.1--0.2 second that needs approximately, for slow the startup stage.

Behind the release button SB, A point dead electricity, capacitor C 3 stop charging, because output 3,4 pin of solid state relay J continue conducting, the D point then continues power supply by alternating current 220V after capacitor C 2, resistance R 5 step-down current limlitings, diode D3, D4 end simultaneously, and F, D point is cut off with A, B point respectively.Diode D1 also ends, capacitor C 3 is extremely slowly discharged through the be of resistance R 3, adjustable potentiometer W, triode Q, keep the conducting of triode, when capacitor C 3 both end voltage are reduced to 0.7V when following, triode Q ends, turn-off because of no current makes its output 3,4 between solid state relay J control end 1,2 pin, bulb extinguishes.By the resistance of regulator potentiometer W, just can change delay time.

Resistance R 2, R5 are used to limit the surge current that power supply rigidly connects flow through when leading to capacitor C 1, C2, protection voltage stabilizing didoe D5, D6.K switch is the common wall switch, is used to provide continuous illumination, is in parallel with output 3,4 pin of solid state relay, and K switch and contact button SB together are installed on the switch panel.

Claims

1, a kind of delay cut-off power down switch, by fuse FU, current-limiting resistance R1, LED and contact button SB form, it is characterized in that: the contact button SB other end A point that is connected in fuse FU and resistance R 1 interface point is connected to the series loop of decompression capacitor C1 and current-limiting resistance R2 composition, the lower end of resistance R 2 is that the B point is connected to voltage stabilizing didoe D5, the zero line that the positive pole of voltage stabilizing didoe D5 connects alternating current 220V is the N point, the negative pole of voltage stabilizing didoe D5 connects the positive pole of rectifier diode D1, the negative pole C point of diode D1 connects the discharged in series loop of positive pole and resistance R 3 and the adjustable potentiometer W composition of filter capacitor C3, the negative pole connecting to neutral line N point of capacitor C 3, the base stage of another termination triode Q of adjustable potentiometer W, the emitter connecting to neutral line N point of triode Q, collector electrode connects solid state relay J's (2) pin, (3) pin of solid state relay J connects the live wire L point of alternating current 220V by fuse FU, (4) pin of solid state relay J is that the zero line of F point and alternating current 220V constitutes output of the present utility model, the F point is connected to the step-down current limliting series loop of capacitor C 2 and resistance R 5 compositions, the lower end of resistance R 5 is that the D point connects the negative pole of voltage stabilizing didoe D6 and the positive pole of rectifier diode D2, the anodal connecting to neutral line N point of voltage stabilizing didoe D6, the negative pole of diode D2 is that the E point connects the positive pole of filter capacitor C4 and the end of current-limiting resistance R4, (1) pin of another termination solid state relay J of resistance R 4, cross-over connection rectifier diode D3 between B point and D point.

2, delay cut-off power down switch according to claim 1 is characterized in that: cross-over connection rectifier diode D4 between A point and F point, give bulb RL power supply with alternating current 220V voltage commutation Cheng Guanbo when just starting, and make its current-limited startup, to prolong its life-span.

3, delay cut-off power down switch according to claim 1 and 2 is characterized in that: between solid state relay J (3), (4) pin and connect K switch, be used to provide continuous illumination.