CN2247349Y

CN2247349Y - Multi-function power supply switch

Info

Publication number: CN2247349Y
Application number: CN 95234570
Authority: CN
Inventors: 刘战民
Original assignee: Tiangong High Science And Tech Co Wuhan
Current assignee: Tiangong High Science And Tech Co Wuhan
Priority date: 1995-09-11
Filing date: 1995-09-11
Publication date: 1997-02-12
Anticipated expiration: 2005-09-11

Abstract

The utility model relates to a power supply switch device which is used for enhancing the functions of time control, infrared remote control, and protection of household appliances, belonging to the technical field of the power switches. A time control circuit and an infrared remote control circuit are switched in a calculation executive circuit, and the switch motion can be completed through a relay finally. An electronic watch control circuit is arranged in a switch, and the timing operation of the switch can be automatically and accurately finished in 24 hours. A manual switch and a timing knob are designed and installed on the panel of the switch, and the manual switch and the timing knob can be easily operated. In addition, a power failure protection circuit and an over current over pressure protection circuit are arranged in the switch, which can ensure the security of household electricity utilization.

Description

A kind of multi-function power switch device

The utility model belongs to the power switch technical field, is the multi-function power switch device of a kind of time control when household electrical appliance are increased, infrared remote control and power supply protection.

Chinese patent application 93227130.8 has proposed the time switch that two 555 Schmidt triggers of a kind of usefulness constitute, though it can self-timing, it can not be in 24 hours self-timing.On the other hand, though many kinds of infrared remote control switchs have appearred now, they all can not combine with time control.

The purpose of this utility model provides a kind of multi-function power switch device with time control, infrared remote control and power supply protection, and it is easy to operate, regularly accurately.

The technical solution of the utility model is: it has time control circuit, infrared remote controller, computing executive circuit and feed circuit, and its technical characterictic is: time control circuit is to be made of 555 timing circuits and electronic watch control circuit.In 555 timing circuits, the emitter of triode BG2 connects with the R-S end and the potentiometer W1 of ic 555 respectively, and the base stage of triode BG2 connects with charge and discharge capacitance C1, and ic 555 is connected into the Schmidt trigger pattern.The electronic watch control circuit is made of charging circuit and diode D3, charging circuit is connected between electronic watch quarter-bell output terminal and the capacitor C 1, the collector of triode BG1 connects not gate IC5A, diode D2 and the resistance R 3 of series connection, the base stage of triode BG1 connects diode D1, and diode D3 then is connected across between the output terminal of diode D1 and ic 555.The output terminal of ic 555 is through resistance R 5 Sheffer stroke gate IC5B and diode D7 connection respectively.Infrared remote controller is to be made of receiving demodulation circuit, anti-jamming circuit, bistable circuit and reset control circuit respectively.On the integrated circuit CX20106 of receiving demodulation circuit, the infrared signal input end connects infrared receiving tube VD1 and VD2 in parallel, dc power supply terminal connects with feed circuit by resistance R 10 and diode D4, and signal output part connects through the base stage of resistance R 12 and anti-jamming circuit triode BG3.In anti-jamming circuit, the base stage of triode BG3 is through resistance R 11 and button AN series connection ground connection, the input end of the collector of triode BG3 and d type flip flop IC4A connects, and d type flip flop IC4A is connected into the monostable pattern, and the output terminal of d type flip flop IC4A connects with the input end of d type flip flop IC4B.Bistable circuit is connected into the bistable state pattern with d type flip flop IC4B exactly, and its reset terminal connects with the collector of reset control circuit triode BG4.Reset control circuit is connected into the emitter-base bandgap grading biased form with triode BG4, and the base stage of triode BG4 connects with the voltage divider that resistance R 16 and capacitor C 11 constitute, and connects by diode D7 and resistance R 18 Sheffer stroke gate IC5B input ends.In the computing executive circuit, computing circuit is exactly rejection gate IC5C, and its input end connects the output terminal of d type flip flop IC4B and not gate IC5B, and its output terminal connects not gate IC5D.In executive circuit, not gate IC5D connects with the base stage of triode BG5 by resistance R 19, and not gate IC5D is also through capacitor C 12 and LED 2 ground connection in parallel simultaneously.

Time control circuit is when electronic watch IC1 sends the quarter-bell signal, by the effect of charging circuit, the current potential of capacitor C 1 is raise gradually, when the R-S of ic 555 terminal voltage reaches control end voltage Vct, the ic 555 output low level, not gate IC5B exports high level, regularly begins.At this moment, feed back diode D3 the charging effect is stopped, in order to limit the charge volume of capacitor C 1.Along with the discharge of capacitor C 1 through triode BG2 emitter and potentiometer W1, when the R-S of ic 555 terminal voltage drops to Vct/2, ic 555 output high level, not gate IC5B output low level regularly finishes.Infrared remote controller is after infrared receiving tube VD1 and VD2VD2 receive the infrared frequency signal, the 7th pin output low level by integrated circuit CX20106, BG3 swings to amplification through triode, the stable square-wave signal of output terminal output at d type flip flop IC4A, after d type flip flop IC4B receives square-wave signal, output terminal is overturn.Reset control circuit is when the ic 555 output low level, by diode D7 triode BG4 is ended, thereby d type flip flop IC4B resets and output low level.In like manner, in the moment of power supply power supply, because the voltage of capacitor C 11 can not increase suddenly, triode BG4 is instantaneous to be ended, and d type flip flop IC4B resets and output low level.The computing executive circuit is after the output of time control circuit and infrared remote controller is inserted rejection gate IC5C and carries out the NOR-logic computing, again through not gate IC5D, resistance R 19, triode BG5 and relay J, thus the gauge tap action.

The utility model has been realized the combination of control switching time and function of infrared remote control by time control circuit and infrared remote controller are inserted the computing executive circuit; Owing to adopted electronic watch quarter-bell starting, so can be in the 24 hours automatic accurate timing of switch; Again because the effect of reset control circuit when household electrical appliance are sent a telegram here again, is subjected to power-off protection after power failure; It is easy and simple to handle easy in addition.

Concrete wiring of the present utility model and structure are provided by following examples and accompanying drawing.

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

Fig. 2 is an infrared remote-control emitter circuit diagram of the present utility model;

Fig. 3 is a feed circuit synoptic diagram of the present utility model;

Fig. 4 is a schematic perspective view of the present utility model.

Describe details and working condition in detail below in conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4 according to the concrete device that the utility model proposes.

In time control circuit, 555 timing circuits are made of resistance R 4, capacitor C 1 and C2, potentiometer W1 and W2, triode BG2 and ic 555 respectively, and potentiometer W1 can adjust the control end voltage Vct of ic 555.The electronic watch control circuit is made of resistance R 1～R3, diode D1～D3, triode BG1 and not gate IC5A respectively, and diode D1 works the effect of boosting, and integrated circuit (IC) 5 is selected CD4001 for use.Electronic watch IC1 has the music function of quarrelling and fighting noisily, and S1～S3 is a function button.Be the influence of avoiding having a power failure, electronic watch is powered with battery E2.In infrared remote controller, receiving demodulation circuit is made of resistance R 7～R10, capacitor C 3～C8, diode D4, infrared receiving tube VD1 and VD2 and integrated circuit CX20106 respectively, and diode D4 is used for stabilizing local power supply.Anti-jamming circuit is made of resistance R 11～R14, capacitor C 9 and C10, button AN, diode D5, triode BG3 and d type flip flop IC4A respectively, and button AN is a hand switch, but the upset of diode D5 stabilizing circuit, and integrated circuit (IC) 4 is selected CD4013 for use.Bistable circuit is made of d type flip flop IC4B exactly.Reset control circuit is made of resistance R 15～R18, capacitor C 11, diode D6 and D7 and triode BG4 respectively, and diode D6 is a discharge diode.The computing executive circuit is made of resistance R 19～R21, capacitor C 12, LED 2, diode D8, triode BG5, rejection gate IC5C and not gate IC5D respectively, and capacitor C 12 is used for filtering, and LED 2 is work display lamps.The LED 1 that is connected in not gate IC5B output terminal is a time display lamp.In Fig. 2, infrared remote-control emitter is to constitute oscillator by not gate ICA and ICB, resistance R 1 and R2 and capacitor C 2 respectively, and triode BG1 and BG2 constitute complex pipe and drive infrared transmitting tube VD1 and VD2 work, and integrated circuit (IC) adopts CD4011.In Fig. 3, constitute full-wave bridge rectifier circuit by transformer T, diode D9～D12 and electric capacity G15, three terminal regulator IC6 selects 7806 for use.At power input, connect fuse RX and voltage dependent resistor (VDR) MYL, be used for carrying out over-current over-voltage protection.

Claims

1. multi-function power switch device, it has time control circuit, infrared remote controller, computing executive circuit and feed circuit, it is characterized in that: time control circuit is to have connected an electronic watch control circuit between the capacitor C 1 of 555 timing circuits and ic 555 output terminal, and exports through not gate IC5B by resistance R 5; Infrared remote controller through bistable circuit output, has connected a reset control circuit at the reset terminal of bistable circuit by receiving demodulation circuit and anti-jamming circuit; The computing executive circuit is the output access rejection gate IC5C with time control circuit and infrared remote controller, at the output terminal connection executive circuit of rejection gate IC5C.

2. according to claim 1 described multi-function power switch device, it is characterized in that: the electronic watch control circuit is made of charging circuit and diode D3, the collector of charging circuit triode BG1 connects not gate IC5A input end, at the output terminal connection diode D2 of not gate IC5A.

3. multi-function power switch device according to claim 1, it is characterized in that: reset control circuit is that triode BG4 is connected into the emitter-base bandgap grading biased form, the collector of triode BG4 connects with the reset terminal of bistable circuit, the base stage of triode BG4 connects with the voltage divider that resistance R 16 and capacitor C 11 constitute, and connects by diode D7 and resistance R 18 Sheffer stroke gate IC5B input ends.