CN2924929Y

CN2924929Y - Multi-point control switch

Info

Publication number: CN2924929Y
Application number: CN 200620105137
Authority: CN
Inventors: 徐文武
Original assignee: Hangzhou Electronic Science and Technology University
Current assignee: Hangzhou Electronic Science and Technology University
Priority date: 2006-06-27
Filing date: 2006-06-27
Publication date: 2007-07-18
Anticipated expiration: 2016-06-27

Abstract

The utility model relates to a multipoint control switch. At present, multipoint control is realized by connection of special made multigang switch and power line which is comparatively complex. The utility model comprises two binding posts of J1 and J2, a main switch Kz and a plurality of auxiliary switches Kf, three load resistances of R1, R2 and R7, three biasing resistances of R3, R4 and R6, a charging and releasing current limiting resistance R5, a pressure releasing current limiting resistance R8, a charging capacitance C2, a filter capacitance C1, three bypass capacitances of C3, C4 and C5, three audions of T1, T2 and T3, a silicon control T4 with unidirection, a rectification bridge Q, two diodes of D1 and D2. Parallel connections are adopted between the main switch and the auxiliary switches and between the auxiliary switches, thereby any of the switches can control the circuit through the on and off status of the main circuit so as to realize multipoint control with simple installation and easy operation.

Description

A kind of multipoint control switch

Technical field

The utility model relates to a kind of electronic switch, especially a kind of multipoint control switch.

Background technology

If realization is carried out multiple spot control to an electrical appliance, need realize by the power line wiring in the prior art with special multigang switch, the wiring more complicated, and need by multi-thread butt joint form, be difficult to realize.Mostly being at present to adopt is ganged switch, if desired three places or more multiposition an electrical appliance is controlled, be difficult to realization with common ganged switch, and generally the electrician can not install yet.

Summary of the invention

The purpose of this utility model is exactly at the deficiencies in the prior art, and a kind of touch switch that can realize multiple spot control is provided.

The utility model comprises two binding post J1 and J2, main switch Kz and a plurality of auxiliary switch Kf, load resistance R1, R2 and R7, biasing resistance R3, R4 and R6, charges and discharge current-limiting resistance R5, step-down current-limiting resistance R8, charging capacitor C2, filter capacitor C1, shunt capacitance C3, C4 and C5, triode T1, T2 and T3, one-way SCR T4, rectifier bridge Q, diode D1 and D2.

The ac input end of rectifier bridge Q is connected with J2 with binding post J1, negative terminal output ground connection, and anode output is connected with anode, load resistance R7 and the end of step-down current-limiting resistance R8 of one-way SCR T4 respectively; The other end of step-down current-limiting resistance R8 is connected with the positive pole of the negative electrode of one-way SCR T4 and diode D1, and the positive pole of the negative pole of diode D1 and diode D2 is connected in series, the minus earth of diode D2; The other end of load resistance R7 is connected with the collector electrode of triode T3, the control utmost point of one-way SCR T4 and the utmost point of shunt capacitance C5 respectively; The negative electrode of one-way SCR T4 is connected with the end of positive pole, load resistance R1 and the R2 of filter capacitor C1 respectively, and the other end of load resistance R1 and R2 is connected with the collector electrode of triode T2 with triode T1 respectively; The collector electrode of triode T1 is connected with an end that charges and discharge current-limiting resistance R5 with biasing resistance R3 respectively, and the collector electrode of triode T2 is connected with the end of biasing resistance R4 and R6 respectively; The base stage of another termination triode T2 of biasing resistance R3 and the positive pole of shunt capacitance C4, the base stage of another termination triode T1 of biasing resistance R4 and the utmost point of shunt capacitance C3, charge and discharge the positive pole of another termination charging capacitor C2 of current-limiting resistance R5, the base stage of another termination triode T3 of biasing resistance R6; The minus earth of filter capacitor C1, charging capacitor C2 and shunt capacitance C4, another utmost point ground connection of shunt capacitance C3 and C5, the grounded emitter of triode T1, T2 and T3; The two ends of main switch Kz are connected with the positive pole of charging capacitor C2 and the base stage of triode T1 respectively, and a plurality of auxiliary switch Kf are connected in parallel by two holding wires and main switch Kz.

Main switch Kz and auxiliary switch Kf adopt key switch.Wherein shunt capacitance C3 and C5 adopt ceramic disc capacitor or electric capacity of the dacron, and filter capacitor C1, charging capacitor C2 and shunt capacitance C4 adopt electrochemical capacitor.

Multipoint control switch of the present utility model, form by a main switch (comprising entire circuit) and a plurality of auxiliary switch, use two holding wires to be connected in parallel between main switch and auxiliary switch and the auxiliary switch, the path of the equal may command main circuit of arbitrary switch with open circuit, realized multiple spot control, install simple, easy to use.Can be widely used in the control of illuminating lamps such as bank, hotel, hospital ward, corridor lamp and household bedroom.This device also has power-off protection function, even at the state of turning on light, power failure suddenly also can make switch turn off the path of main circuit automatically, and the rear lighting lamp of sending a telegram here again can not lighted again.

The utlity model has following characteristics:

Power-off protection function, i.e. outage or power failure when lamp is bright, lamp can be not bright when sending a telegram here again; This function has especially not only been saved electric energy but also eliminated accident potential in the classroom of universities and colleges for the user;

Owing to be the Push And Release of small-signal current control lamp, if use fine rule just can, thereby can save the mounting cost that the power line is drawn in many places;

Because switch is a contactless control element, can not produce electric spark in switching process, should become the product of first-selection in environment such as inflammable and explosive occasion such as mine, gas station and tunnel.

Can be used as single general switch substitute, and install and the original just the same convenience of switch.

Have only 1.5V owing to keep marquis's voltage in the machine, power consumption is very little, brings very long useful life to electronic switch simultaneously.

Description of drawings:

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

Embodiment

As shown in Figure 1, soft-touch type multipoint control switch comprises two binding post J1 and J2, main switch Kz and a plurality of auxiliary switch Kf, load resistance R1, R2, R7, biasing resistance R3, R4, R6, charges and discharge current-limiting resistance R5, step-down current-limiting resistance R8, charging capacitor C2, filter capacitor C1, shunt capacitance C3, C4, C5, triode T1, T2, T3, one-way SCR T4, rectifier bridge Q, diode D1 and D2.Wherein shunt capacitance C3 and C5 adopt ceramic disc capacitor or electric capacity of the dacron, and filter capacitor C1, charging capacitor C2 and shunt capacitance C4 adopt electrochemical capacitor.

This switch comprises voltage stabilizing circuit part, driving circuit section and switch triggering circuit part.

Voltage stabilizing circuit part concrete structure is: the anode output of rectifier bridge Q is connected with anode, load resistance R7 and the end of step-down current-limiting resistance R8 of one-way SCR T4 respectively, and the other end of step-down current-limiting resistance R8 is connected with the positive pole of the negative electrode of one-way SCR T4 and diode D1.The positive pole of the negative pole of diode D1 and diode D2 is connected in series, and the minus earth of diode D2, D1 and D2 are as voltage stabilizing element, and the while as load circuit, forms a D.C. regulated power supply equally when circuit turn-on.On the positive pole of D1, just formed the D.C. regulated power supply of this switch like this.The positive pole of filter capacitor C1 is connected with this voltage stabilizing circuit, reaches filter effect.

Driving circuit section comprises biasing resistance R6 and load resistance R7, the base stage of the termination triode T3 of biasing resistance R6, and the collector electrode of triode T3 is connected with the end of load resistance R7 and the control utmost point of one-way SCR T4 respectively.

Switch triggering circuit part concrete structure is: the other end of load resistance R1 and R2 is connected with the collector electrode of triode T2 with triode T1 respectively; The collector electrode of triode T1 is connected with an end that charges and discharge current-limiting resistance R5 with biasing resistance R3 respectively, and the collector electrode of triode T2 is connected with the end of biasing resistance R4 and R6 respectively; The base stage of another termination triode T2 of biasing resistance R3 and the positive pole of shunt capacitance C4, the base stage of another termination triode T1 of biasing resistance R4 and the utmost point of shunt capacitance C3, charge and discharge the positive pole of another termination charging capacitor C2 of current-limiting resistance R5, the base stage of another termination triode T3 of biasing resistance R6; The minus earth of filter capacitor C1, charging capacitor C2 and shunt capacitance C4, another utmost point ground connection of shunt capacitance C3 and C5, the grounded emitter of triode T1, T2 and T3; The two ends of main switch Kz are connected with the positive pole of charging capacitor C2 and the base stage of triode T1 respectively, and a plurality of auxiliary switch Kf are connected in parallel by two holding wires and main switch Kz.

The effect of shunt capacitance C4 is to cut off the power supply the moment of incoming call again on switch in the utility model; the use capacity is the electrochemical capacitor of big (0.5～5 μ); the feature of utilizing its voltage not suddenly change, making triode T2 base stage is electronegative potential, thereby makes very high potential of triode T2 current collection; triode T3 base stage is an electronegative potential; triode T3 current collection is electronegative potential very, and promptly one-way SCR T4 controls very electronegative potential, not conducting of T4; thereby reach the function that opens circuit, play the effect of power-off protection.

Drive circuit adopts one-way SCR T4, when very high potential conducting during its control utmost point during high potential of triode T3 current collection, makes the load two ends add the voltage of nearly 220V, loaded work piece.

Voltage stabilizing circuit partly has the load conducting and closes two states: when load is not worked, when promptly being in stand-by state, power supply after load step-down and rectifier bridge form high direct voltage 210V again through step-down current-limiting resistance R8 step-down, diode D1 and D2 voltage stabilizing, filter capacitor C1 filtering, export about a voltage of voltage regulation 1.5V, come the control circuit electricity consumption.After hand has been pressed main switch Kz or the arbitrary switch of auxiliary switch Kf, because the collector electrode of triode T1 is a low-voltage, be to be low level on the charging capacitor C2, making triode T1 base stage by main switch Kz or auxiliary switch Kf is low level, triode T1 is ended, because triode T1 and T2 have formed bistable trigger, it is triode T2 conducting that triode T1 ends, triode T2 current collection is electronegative potential very, to triode T3 base stage, triode T3 ends by biasing resistance R6, and current collection is high level very, make one-way SCR T4 control very high level, one-way SCR T4 conducting loaded work piece this moment.When one-way SCR T4 conducting, make that voltage of voltage regulation diode D5, D6 on also exist because the existence of D1 and D2 is arranged this moment, so whole circuit also has DC power supply to exist, do not influence next switch motion.

Claims

1, a kind of multipoint control switch is characterized in that this switch comprises two binding posts (J1 and J2), main switch (Kz) and a plurality of auxiliary switch (Kf), load resistance (R1, R2 and R7), biasing resistance (R3, R4 and R6), charges and discharge current-limiting resistance (R5), step-down current-limiting resistance (R8), charging capacitor (C2), filter capacitor (C1), shunt capacitance (C3, C4 and C5), triode (T1, T2 and T3), one-way SCR (T4), rectifier bridge (Q), diode (D1 and D2);

The ac input end of rectifier bridge (Q) is connected with binding post (J1 and J2), negative terminal output ground connection, and anode output is connected with anode, load resistance (R7) and the end of step-down current-limiting resistance (R8) of one-way SCR (T4) respectively; The other end of step-down current-limiting resistance (R8) is connected with the negative electrode of one-way SCR (T4) and the positive pole of diode (D1), and the positive pole of the negative pole of diode (D1) and diode (D2) is connected in series, the minus earth of diode (D2); The other end of load resistance (R7) is connected with the collector electrode of triode (T3), the control utmost point of one-way SCR (T4) and a utmost point of shunt capacitance (C5) respectively; The negative electrode of one-way SCR (T4) is connected with the positive pole of filter capacitor (C1), an end of load resistance (R1 and R2) respectively, and the other end of load resistance (R1) and load resistance (R2) is connected with the collector electrode of triode (T1) with triode (T2) respectively; The collector electrode of triode (T1) is connected with an end that charges and discharge current-limiting resistance (R5) with biasing resistance (R3) respectively, and the collector electrode of triode (T2) is connected with an end of biasing resistance (R4 and R6) respectively; The base stage of another termination triode (T2) of biasing resistance (R3) and the positive pole of shunt capacitance (C4), the base stage of another termination triode (T1) of biasing resistance (R4) and a utmost point of shunt capacitance (C3), charge and discharge the positive pole of another termination charging capacitor (C2) of current-limiting resistance (R5), the base stage of another termination triode (T3) of biasing resistance (R6); The minus earth of filter capacitor (C1), charging capacitor (C2) and shunt capacitance (C4), another utmost point ground connection of shunt capacitance (C3 and C5), the grounded emitter of triode (T1, T2 and T3); The two ends of main switch (Kz) are connected with the positive pole of charging capacitor (C2) and the base stage of triode (T1) respectively, and a plurality of auxiliary switch (Kf) are connected in parallel by two holding wires and main switch (Kz).