CN2376140Y

CN2376140Y - Remote-control switch on wall

Info

Publication number: CN2376140Y
Application number: CN 98244138
Authority: CN
Inventors: 陈曾义
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-10-08
Filing date: 1998-10-08
Publication date: 2000-04-26
Anticipated expiration: 2008-10-08

Abstract

The utility model relates to a new-type remote-control switch on a wall, which can carry out single line operation and can directly replace the existing mannual mechanical switches on a wall. The utility model is formed by that two connecting terminals of an existing manual switch are connected in series with a bridge rectifier circuit of which the positive and the negative terminals are connected with an electronic switch and a group of diodes; the electronic switch and the group of diodes are respectively connected in parallel with a resistor and a capacitor. When the electronic switch is switched off, the alternating current passes through a load and a bridge rectifier and then passes through a resistance voltage reducer and a capacitance filter so that operating voltage is offered for circuits. When the electronic switch is switched on, the current of the load passes through the group of diodes which are connected in series, and then, voltage which is generated at both ends of the group of diodes is supplied to the circuits. The utility model solves the problem of working power supply for the implementation of single line remote control on switch circuits.

Description

Remote control switch on the novel wall

The utility model relates to a kind of remote control switch, particularly can directly replace remote control switch on the novel wall of hand switch.

Hand switch is a kind of mechanical switch on the existing wall.Two contact is to be connected on the live wire of AC power, again with the zero line of receiving AC power after load [as bulb] is connected on [as shown in Figure 1].Reach the purpose of turning on light or turning off the light by the switch connection or the live wire of cutting off the electricity supply.If will replace this hand switch, then must on former switching circuit, increase a zero line, because the circuit of remote control switch needs voltage to work with remote control switch.This voltage is normally obtained from zero, the live wire of AC power.Therefore, common remote control switch has three lines at least: zero, live wire and load line." BABI " type remote control switch of producing as Shuande city factory promptly is this type of, must increase a zero line during installation, and is pretty troublesome.The house of particularly modern finishing, its electric wiring all concealed installation increase circuit and will destroy its finishing within the walls, obviously are impracticable.Perhaps, this is that common remote control switch occurs for many years on market, but one of few reason of buyer.

Hong Kong company produced a kind of remote control switch that replaces incandescent lamp switch on the wall several years ago, it makees switch with controllable silicon, in order to obtain the operating voltage of receiving circuit, take to reduce the way [having only 140 degree] of thyristor operating angle, from the controllable silicon two ends pressure drop of incomplete conducting, obtain the required voltage of receiving circuit.Because thyristor operating angle reduces, output is not complete sine wave, and voltage effective value reduces, and bulb does not reach specified luminous power, produces a large amount of high order harmonic components simultaneously, disturbs other electrical equipment operate as normal.

The purpose of this utility model provides and a kind ofly can directly replace hand switch on the existing wall, the novel remote control switch of single-line operation, the complete sine wave of output.

The key of technology is how from the single live wire of original switch, obtains the operating voltage of remote control circuit.The utility model is achieved in that at original switch terminal J-L1, J-L2 meets a bridge rectifier BRG, the anode 1 of BRG connects electronic switch SCR and resistance R 2, the lower end 2 of SCR and the lower end 2 of R2 connect 1 end of series diode group DN and 1 end of electrochemical capacitor C1, the trigger electrode 3 of SCR connects collector electrode C and the resistance R 1 of triode V1, the other end 1 of resistance R 1 links to each other with the anode 1 of BRG, the base stage b of V1 then links to each other with receiving circuit output signal control end Q, 2 ends of the emitter e of V1 and diode group DN and 2 ends of electrochemical capacitor C1, the negative terminal 3 of rectification circuit BRG is connected to E mutually and makes public ground.Because 2 of bridge rectifier BRG terminates on the AC power live wire L, 4 ends are by load LAMP[bulb] be connected on the AC power zero line N.Therefore, when switch disconnected, alternating current was by load and rectification circuit, and at the 1 end generation direct voltage of rectification circuit BRG, this voltage is after resistance R 2 step-downs, capacitor C 1 filtering, as the operating voltage of remote control circuit; When switch conduction, load current is by switch S CR and diode in series group DN, produces the half-wave sinusoidal voltage of several volts at 1,2 ends of DN, offers remote control circuit and make work voltage after capacitor C 1 filtering.

Owing to adopt such scheme, the power issue when having solved the remote-control receiving circuit single-line operation makes it not increase zero line and can directly replace hand switch on the wall.

Below in conjunction with drawings and Examples operation principle of the present utility model is described further.

Accompanying drawing 2 is circuit theory diagrams of the present utility model.

In accompanying drawing 2, picture frame 1 is for receiving amplifying circuit, and 2 is detecting circuit, and 3 is bistable circuit, and they all are the prior art circuit.It in the frame of broken lines the utility model circuit.Wherein controllable silicon SCR is an electronic switch, and triode V1 and resistance R 1 are its circuits for triggering, and series diode DN is electric current one voltage conversion circuit, and R2, BRG, C1 are step-down, rectification, filter circuit.The control signal S[that receiving circuit is sent radiating circuit here can be infrared ray, radio, ultrasonic wave] amplify, detection, produce a pulse voltage, remove to trigger bistable circuit (3) and make its upset.When its output Q is high level, the V1 conducting, SCR turn-offs, and alternating current is by load LAMP and rectification circuit BRG at this moment, and at the 1 end generation direct voltage of BRG, this voltage is after resistance R 2 step-downs, capacitor C 1 filtering, as the operating voltage (Vcc) of remote control circuit; When bistable circuit Q was output as low level, V1 ended, the SCR conducting that is triggered, and load current flows through SCR and DN, produces the half-wave sinusoidal voltage at the DN two ends, offers remote control circuit after capacitor C 1 filtering.Therefore, no matter switch S CR is conducting or turn-offs that receiving circuit can both be obtained the stable voltage of several volts and carry out work, thereby realizes increasing zero line, directly replaces manual switching purposes on the wall with remote control switch.

Button AN on bistable circuit is a manual buttons, makes the switch both can remote control, also can be manual, use convenient.The number of DN series diode is decided [pressure drop of each diode is about 0.6 volt] on the required operating voltage of receiving circuit.The also available voltage-stabiliser tube of DN replaces.Electronic power switchs such as the also available bidirectional triode thyristor of SCR, transistor, field effect transistor, IGBT replace.

The whole circuit of the utility model are installed on the little printed circuit board (PCB), and circuit board is fixed in the switch panel back with sieve silk, and the bonnet protection is arranged.There are infrared reception chimney mouth and one manually to touch knob on the switch panel, two binding post J-L1 and J-L2 are arranged at bonnet top, two the end of a thread on the former hand switch circuit need only be connected on respectively on these two binding posts during installation, can carry out remote control electrical equipment such as electric light, fluorescent lamps.

Claims

1. remote control switch on the novel wall, it is characterized in that: at switch terminal J-L1, J-L2 is connected to a bridge rectifier BRG, BRG anode 1 connects 1 end of electronic switch SCR and 1 end of resistance R 2, the lower end 2 of SCR and the lower end 2 of R2 connect 1 end of series diode group DN and 1 end of electrochemical capacitor C1, the collector electrode C of the trigger electrode 3 termination triode V1 of SCR and 2 ends of resistance R 1,1 end of R1 links to each other with the anode 1 of BRG, the base stage b of V1 then links to each other with receiving circuit output signal control end Q, 2 ends of the emitter e of V1 and diode group DN and 2 ends of electrochemical capacitor C1, the negative terminal 3 of rectification circuit BRG is connected to public ground E mutually, 2 ends of BRG are connected on the AC power live wire L by terminals J-L1, and 4 ends of BRG are connected on the AC power zero line N through load LAMP by binding post J-L2.

2. remote control switch on the novel wall according to claim 1 is characterized in that: electronic switch SCR can be electronic power switch devices such as bidirectional triode thyristor, transistor, field effect transistor, IGBT.

3. remote control switch on the novel wall according to claim 1 is characterized in that: diode group DN can be a voltage stabilizing didoe.