CN2047863U

CN2047863U - Energy-saving delay-action touch switch

Info

Publication number: CN2047863U
Application number: CN 89212569
Authority: CN
Inventors: 刘世民; 马健
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-06-07
Filing date: 1989-06-07
Publication date: 1989-11-15

Abstract

The utility model discloses an energy-saving touch switch which has the function that opening and closing are realized through touch and the closing can also be realized through delay-action, comprising an integrated circuit. The utility model has the advantages of small size, low cost, convenient installation, high safety, good repetitiveness of delay-action, high load capacity and obvious power saving effect. The energy-saving touch can be used for the family, the corridor and other public spaces and can also be as a timer to use.

Description

Energy-saving delay-action touch switch

The utility model relates to a kind of touch delay switch.

Existing soft-touch control is because of its switch control power supply generally adopts the capacitance decompression method to obtain.And adopt discrete component to constitute mostly, so the switch assembling is numerous tired, time-delay repeatability is bad.Strong and weak electricity is not isolated fully, causes personal electric shock casualty accident easily.

The purpose of this utility model provide a kind of with low cost, delay precision is high, safe and reliable energy-conservation time-delay soft-touch control.

Fig. 1 is an electrical schematic diagram of the present utility model

Referring to Fig. 1, the utility model closes resistance-capacitance depressurization, filter circuit of pressure-stabilizing, the two-way controllable silicon BCR that bridge-type rectification, R2, DW, C1 that circuit, diode D1-D4 form form by the touch open and close of adopting the NE555 integrated circuit to consist of and time-delay and forms. Its work principle is as follows:

Civil power is through bridge rectifier and resistance R 2 step-downs, and by after voltage stabilizing didoe DW voltage stabilizing and capacitor C 1 filtering, becomes the Constant Direct Current source, closes the circuit use for touch open and close that are made of the NE555 integrated circuit and time-delay.When with hand touch electrode 1, the human-induced signal makes the Integrated Circuit Working State upset through capacitor C 5 coupling input NE555 integrated circuits.Output 8 pin become high level by low level, and trigger current triggers the complete conducting of controllable silicon BCR through the control utmost point of resistance R 3 input controllable silicon BCR, and lamp (electrical appliance) is got.When with hand touch electrode 2, the human-induced signal restores the integrated circuit state turnover through capacitor C 2 input NE555 integrated circuits, output 3 pin become low level by high level, make controllable silicon BCR by turn-offing, lamp (electrical appliance) dead electricity, time-delay turn off the light (electrical appliance) as need.Can be with the K switch closure, at this moment, with hand touch electrode 2, the integrated circuit state can not overturn at once, must be after a period of time time-delay, just output low level is extinguished lamp (electrical appliance) dead electricity.

The time-delay closing time of soft-touch control is by the capacity decision of the resistance and the capacitor C 3 of resistance R 1.

Claims

1, a kind ofly closes the energy-conservation touch delay switch that circuit, power supply, controllable silicon BCR constitute, it is characterized in that described power supply is by diode D by touching open and close and time-delay ₁-D ₄The bridge rectifier, the dropping resistor R that form ₂, voltage stabilizing didoe DW, filter capacitor C ₁Constitute.

2, energy-conservation touch delay switch as claimed in claim 1 is characterized in that touching open and close and time-delay and closes circuit employing NE555 integrated circuit formation.