CN2153910Y

CN2153910Y - Single-phase timing switch

Info

Publication number: CN2153910Y
Application number: CN 93230536
Authority: CN
Inventors: 马巨堂
Original assignee: Machinery Plant Of Linqu County No1 Vocational Senior Middle School
Current assignee: Machinery Plant Of Linqu County No1 Vocational Senior Middle School
Priority date: 1993-03-22
Filing date: 1993-03-22
Publication date: 1994-01-19
Anticipated expiration: 2003-03-22

Abstract

The utility model discloses a single-phase timing switch, which relates to the technical field of non-contact switches, and has an oscillation time delay circuit, a trigger bootstrap circuit, and a rectification circuit, wherein, the input end of the rectification circuit is connected with a load bulb and a single-phase AC power supply with 220V; LEDs are connected in series in a silicon-controlled anode circuit in the trigger bootstrap circuit to be used as indicator lights which always light; a touch point is arranged in the oscillation time delay circuit to be used as the input signal of a 555 time-base circuit. The utility model has the characteristics of convenient operation, reliability, safety, and electricity saving in use.

Description

Single-phase timing switch

The utility model relates to contactless electric switch technical field.

Present single-phase electricity switch all is plate key formula or push button.Must rely on mechanical action to be switched on or switched off power supply.Exist inconvenient operation, the waste electric energy, the break-make of contact can produce spark, and uneasy congruence is not enough.

The purpose of this utility model is a kind of contactless single-phase electricity switch of design, makes that it is easy to operate, reliable, safety, power saving.

This single-phase electricity switch has a vibration delay circuit, this vibration delay circuit comprises a touch device, the isolation resistance that is connected with the touch device, the anti-interference resistance that is connected with isolation resistance, with the integrating circuit that anti-interference resistance is connected with the touch device, 35 time-base circuits that are connected with integrating circuit; The triggering boostrap circuit that is connected with the output of 35 time-base circuits, this triggering boostrap circuit comprises the controlling resistance that 35 time-base circuit outputs connect, the diode that is connected with 35 time-base circuit power supplys, the voltage stabilizing didoe that is connected with diode, the controllable silicon that is connected with voltage stabilizing didoe, the indicator light that is connected with controllable silicon; The rectification circuit of forming by 4 diodes that is connected with controllable silicon.The load bulb is connected on the 220V power supply with rectification circuit input end.

The touch device of this single-phase electricity switch links to each other with isolation resistance as an inductance, for the input of 35 time-base circuits provides input signal, in order to change the output current potential of 35 time-base circuits, and integrating circuit is arranged as time-delay, when the output of 35 time-base circuits is exported high level, trigger the controllable silicon conducting in the boostrap circuit, at this moment give the power supply of 35 time-base circuits by diode, and 35 time-base circuit 6V power supplys are kept in bootstrapping, make the load bulb that is connected rectification circuit input end shinny, the delay circuit of vibration in the delay circuit is after give the delay time of adjusting earlier, the reverse output of 35 time-base circuits of delay circuit becomes other current potential, controllable silicon turn-offs, and load this moment bulb extinguishes.Thereby it is shinny to reach bulb bulb when touching, through the purpose of turn-offing voluntarily after the certain time-delay.Whole electric switch does not have the break-make of mechanical contact, does not produce electric spark, and the shinny time of bulb can be adjusted in the certain hour scope, but switch just when touching the touch point with hand is not only easy to operate, and safety, economize on electricity.

Accompanying drawing shows the circuit theory diagrams of the embodiment of this single-phase timing switch.

In the present embodiment, this single-phase timing switch has a vibration delay circuit (1), this vibration delay circuit (1) comprises a touch device L, the isolation resistance R1 that links to each other with touch device L one end, the anti-sorrow resistance R 0 of doing that links to each other with isolation resistance R1 one end, with touch device L and the anti-integrating circuit of contacting and forming by R6, R2, C2 of doing that sorrow resistance R 0 other end links to each other, and 35 time-base circuit IC that link to each other with integrating circuit; The triggering boostrap circuit (2) that links to each other with 35 time-base circuit IC outputs, this triggering boostrap circuit (2) comprises the controlling resistance R3 that is connected with 35 time-base circuit IC outputs, the diode D1 and the light-emitting diode U that link to each other with 35 time-base circuit power ends, the voltage stabilizing didoe DW that links to each other with the diode D1 other end, the dropping resistor R5 that links to each other with the light-emitting diode U other end, the controllable silicon SCR that links to each other with the dropping resistor R5 other end, the controlling resistance R3 other end, diode D1, voltage stabilizing didoe DW; The rectification circuit of being made up of diode D2-D5 (3) that links to each other with controllable silicon SCR, load bulb Fz and single phase alternating current (A.C.) 220V power supply are connected the input of rectification circuit (3).In triggering boostrap circuit (2), the continued flow resistance R4 of and voltage stabilizing didoe DW two end parallel connections is arranged, be connected in parallel on voltage stabilizing didoe DW two ends, the shutoff capacitor C 4 of controllable silicon SCR is connected in the filter capacitor C3 on the diode D1 positive pole.

When touching touch point L with hand, be equivalent on the input 2 that an inductance signal is added in 35 time-base circuit IC, the output 3 output high potentials of 35 time-base circuit IC, trigger the control utmost point of controllable silicon SCR by the controlling resistance R3 on the output 3 that is connected 35 time-base circuit IC, and the 6V pressurizer DW that connects by the SCR negative electrode makes the controllable silicon SCR conducting, 6V is provided power supply for 35 time-base circuit IC current terminals 8 by diode D1, diode D1 makes and keeps 35 time-base circuit IC after the controllable silicon SCR conducting 6V power supply is arranged, at this moment, the input current that is connected the rectification circuit (3) on the controllable silicon SCR anode strengthens, and makes load bulb FZ shinny.Integrating circuit in vibration delay circuit (1) through one regularly backward, the input of 35 time-base circuit IC changes, make and be output as other current potential, at this moment turn-off 1 end by 35 time-base circuit Ic of capacitor C 4,3 ends to the controllable silicon SCR back discharge, controllable silicon SCR is turn-offed, the rectification circuit input end electric current reduces, and load bulb FZ extinguishes.At this moment in triggering boostrap circuit (2), be connected in the light-emitting diode U between dropping resistor R5 and the diode D1,, thereby be normal bright indicator light no matter still be that high potential state all has 4.5V-5V voltage at low-potential state.

IC selects NE555 for use in the present embodiment, and SCR selects SCR89(BA1A/600V for use), DW selects 2CWB3(6V3W for use), D1 selects IN4001 for use, and D2-D5 selects IN4007 for use, and U selects TLSG205 for use.

Claims

1, a kind of single-phase timing switch, it is characterized in that having a vibration delay circuit (1), this vibration delay circuit (1) comprises a touch device L, the isolation resistance R1 that links to each other with touch device L one end, the anti-interference resistance R 0 that links to each other with isolation resistance R1 one end, with touch that device L links to each other with anti-interference resistance R 0 other end by R6, R2, the integrating circuit that the C2 polyphone is formed, and the 35 time-base circuit Ic that link to each other with integrating circuit, the triggering boostrap circuit (2) that links to each other with 35 time-base circuit Ic outputs, this triggering boostrap circuit (2) comprises the controlling resistance R3 that is connected with 35 time-base circuit Ic outputs, the diode D1 and the light-emitting diode U that link to each other with 35 time-base circuit power ends, the voltage stabilizing didoe DW that links to each other with the diode D1 other end, the dropping resistor R5 that links to each other with the light-emitting diode other end, with the step-down piezoresistance R5 other end, the control circuit R3 other end, diode D1, the controllable silicon SCR that voltage-stabiliser tube DW links to each other, be connected in parallel on the shutoff capacitor C 4 of the controllable silicon SCR at voltage stabilizing didoe DW two ends, the rectification circuit of forming by diode D2-D5 (3) that links to each other with controllable silicon SCR.

2, single-phase timing switch according to claim 1 is characterized in that in triggering boostrap circuit (2) a continued flow resistance R4 who is connected in parallel on voltage stabilizing didoe DW two ends being arranged.

3, single-phase timing switch according to claim 1 is characterized in that being connected with filter capacitor C3 between diode D1 negative electrode and ground in triggering boostrap circuit (2).