CN2045891U - Wall switch with delayed lamp-stoped function - Google Patents

Abstract

The utility model discloses a wall switch with a delayed switch-off function, and the essential technical proposal is that the wall switch with a delayed switch-off function is provided with a delay device composed of electronic elements on the basis of an original wall switch. The wall switch with a delayed switch-off function comprises a capacitance type current-constant voltage reduction rectifier composed of a voltage reduction capacitance, a voltage divider, a resistor and a rectifying diode and a delaying switch circuit composed of a charging capacitance, a discharging capacitance and a miniature relay, and the normally open contact of the miniature relay is connected with two connecting points of the original wall switch in parallel. The power supply end of the power of the wall switch with a delayed switch-off function is connected in an illumination lamp circuit in series through an isolating diode and a switch contact.

Description

Wall switch with delayed lamp-stoped function

The utility model relates to a kind of daily lighting switch, particularly a kind of wall lighting switch of delaying time and turning off the light.

Night, if in order to economize on electricity, prevent normal bright lamp, at first stopcock could be walked then, brings very big inconvenience to people like this as people during in the walking of corridor, corridor.The switch that can address the above problem is more at present, generally is divided into two kinds, and a kind of is only can use as time-delay light-off switch, can not make regular tap and use, and promptly can not make illuminating lamp Chang Ming on demand; Another kind is that the light-off switch of can delaying time can be made regular tap again and uses, the time-delay mechanism of this kind generally is divided into two kinds of forms, the one, mechanical structure, another is the electronic type structure, adopt mechanical time-delay mechanism structure complicated, be difficult for processing and fabricating (adopting gear, ratchet and wobble wheel etc. as need), adopt the time-delay mechanism of electronic type, generally needing increases independent power supply for line, so not only brings difficulty (the particularly civil buildings that connected up and installed) but also waste lead to installation wiring.

The purpose of this utility model provides a kind of switch on wall of delaying time and turning off the light, and its light-off switch of both can having delayed time uses, and can make regular tap again and use, and time-delay mechanism adopts simple electronic component to constitute, but does not establish power supply separately for line, does not promptly increase installation wiring.

The purpose of this utility model is achieved in that it is to increase an electronic delay device on the basis of existing common wall switch, this device comprises condenser type constant-current decompression rectifier of being made up of decompression capacitor, divider resistance, rectifier diode and the delay switch circuit of being made up of charge and discharge capacitance, midget relay, its technical essential is the method that said elements is assembled on the bar printing plate and the employing back of the body is carried on the back to be attached to former switch on wall behind, two contact parallel connections of the normally opened contact of relay and former switch on wall; The power supply side of this device is serially connected in the lighting lamp circuit by an isolating diode and make and break contact, promptly need not establish power supply separately for line, does not change former switch on wall power-supply wiring.During use, if need illuminating lamp Chang Ming, its operation is identical with regular tap, and as if needing time-delay to turn off the light, under the illuminating lamp closed condition, the seesaw type button under dialling on the switch on wall goes back its group immediately again.At this moment, the relay adhesive, its normally opened contact closure is finished self-locking, provides the path of lighting lamp power with this, light illuminating lamp, when charge and discharge capacitance device discharging current during less than the relay holding current, relay discharges, thereby extinguishes illuminating lamp, be connected the isolating diode of this device power supply side, both played buffer action, reduced the electric current of filament simultaneously, play lengthen the life, energy-conservation effect.

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1, the utility model structural representation.

The K of Fig. 2, Fig. 1 is to view.

Fig. 3, the utility model circuit theory diagrams.

Fig. 1～3 are an embodiment of the present utility model, it comprises the contact 8 that do not draw among switch cover plate 4, seesaw type button 6, make and break contact 3,8(Fig. 1) and the time-delay mechanism 2 formed by electronic original part, this device is assembled in electronic component on the one bar printing plate, and carry on the back and carry on the back at the switch on wall back side, the circuit (referring to Fig. 3) of forming this time-delay mechanism comprises by decompression capacitor C ₁, divider resistance R, rectifier diode D ₁, D ₂, D ₅The condenser type constant-current decompression rectifier of forming and by charge and discharge capacitance C ₂, isolating diode D ₃, D ₄, the delay switch circuit formed of relay R Y.Its power supply side 1,7 is by an isolating diode D ₄Be serially connected in the illuminating lamp loop with make and break contact 3,8, two contacts 3,8 of the normally opened contact of relay R Y and switch are connected in parallel.The operation principle of this time-delay mechanism is: electric network source is through illuminating lamp ZD, decompression capacitor C ₁Be added to commutating circuit (D ₁, D ₂, D ₅) in, the electric current after the rectification is to charge and discharge capacitance C ₂Charging is because C ₂Capacitance is very big, stores considerable electric energy, when dialling seesaw type button 6 (make and break contact 3,8 is connected), relay R Y adhesive, illuminating lamp is bright, and relay R Y normally opened contact closure is finished self-locking simultaneously, and continue to provide the path of lighting lamp power, as charge and discharge capacitance C ₂Discharging current during less than relay R Y holding current relay discharge, illuminating lamp extinguishes, this delay time is generally about 2 minutes.Add isolating diode D ₄On the one hand play buffer action, also reduced the electric current of filament on the other hand, play lengthen the life, energy-conserving action.Diode D in the commutating circuit ₅Also can select for use light-emitting diode that it is installed in display aperture 5 on the switch cover plate 4, do the position indication.Decompression capacitor C ₁Can mend the power factor of tasting electrical network.

Claims (1)

1, a kind of switch on wall of delaying time and turning off the light, it comprises by switch cover plate, the seesaw type button, the common wall switching mechanism that make and break contact is formed, it is characterized in that: also carry on the back at the back side of regular tap and carry a time-delay mechanism of forming by electronic component on the back, this device comprises by decompression capacitor, divider resistance, the condenser type constant-current decompression rectifier that rectifier diode is formed and by charge and discharge capacitance, the delay switch circuit that midget relay is formed, two contacts of the normally opened contact of relay and former switch on wall are connected in parallel, and the power supply side of this device is serially connected in the lighting lamp circuit by an isolating diode and make and break contact.

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