CN2218994Y

CN2218994Y - Touch delay switch

Info

Publication number: CN2218994Y
Application number: CN 95214368
Authority: CN
Inventors: 贾支辉
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-06-28
Filing date: 1995-06-28
Publication date: 1996-01-31
Anticipated expiration: 2005-06-28

Abstract

The utility model relates to a touch delay switch used for a filament lamp, comprising a switch housing part and a circuit part, wherein, the switch housing is composed of a panel and a back cover, and a circuit board is arranged in the switch housing; the circuit part is composed of a power supply circuit and a delay switch circuit; the input end of the power supply circuit is connected with mains supply, and the output end of the power supply circuit is connected with the delay switch circuit. The delay switch circuit is mainly composed of a D-typed trigger integrated circuit IC, a controlled silicon, and a delay circuit; the controlled silicon is connected in series in the power supply loop of the filament lamp; the control electrode of the controlled silicon is connected with the pulse output end (Q) of the D-typed trigger integrated circuit IC through a voltage stabilizing tube and a diode; the triggering input end (C) of the D-typed trigger integrated circuit IC is connected with a touch triggering board; the delay circuit is composed of capacitance, the diode, and resistance.

Description

Touch delay switch

The utility model relates to a kind of appliance switch, particularly a kind of touch delay switch that is used for incandescent lamp.

At present, touch appliance switch kind is more, and many practical applications are also arranged, as touch lamp dimmer, and the touch delay switch that corridor lighting is used etc.Multiple contact witch is also disclosed on the patent documentation.But these switch ubiquities shortcomings such as circuit structure complexity, functional reliability difference.Particularly be not suitable for constituting various universal switches.Though " touch dimmer switch " patent (ZL94245688.2) of the applicant's application possesses many advantages, it does not have the function of delay cut-off, is not suitable for some specific occasion.

The purpose of this utility model is that the defective that overcomes prior art provides a kind of touch delay switch of controlling incandescent light source.Its circuit structure is simple, and volume is little, has the time delayed turn-off function, can constitute all kinds of universal switches.

The utility model is achieved in that it comprises switch case and two parts of circuit, switch case is made of panel and back cover, circuit board is placed in one, circuit part is made of power circuit and delay switch circuit, the input of power circuit and civil power join, and it exports termination delay switch circuit, for delay switch circuit provides direct-current working volts, it is characterized in that power circuit comprises rectification circuit and voltage stabilizing circuit; Monostable flipflop that delay switch circuit mainly is made of the D flip-flop integrated circuit (IC) and delay circuit thereof and controllable silicon constitute, controllable silicon is series in the incandescent lamp current supply circuit, the silicon controlled control utmost point links to each other with the pulse output end (Q) of D flip-flop integrated circuit (IC) with diode via voltage-stabiliser tube, and the triggering input (C) of D flip-flop integrated circuit (IC) is connected in touch trigger board; Delay circuit is made of electric capacity, diode and resistance.

Delay switch of the present utility model is serially connected with in the incandescent lamp current supply circuit, when human body touch triggers input, the triggering input of the voltage signal input d type flip flop integrated circuit (IC) of human body sensing, make the output of d type flip flop integrated circuit produce upset, and then control the current supply circuit conducting that the controllable silicon conducting makes bulb, and d type flip flop is a monostable flipflop, the time of its upset is by its delay circuit control, overturn once more through d type flip flop after one section time-delay, controllable silicon extinguishes by lamp.

Delay switch certificate of the present utility model has circuit structure simple, reliable operation, and delay time can be set as required, is easy to constitute advantages such as multiple universal switch.

Further describe the utility model below in conjunction with drawings and Examples.

Fig. 1 is the circuit theory diagrams of a kind of embodiment of the utility model.

Fig. 2 is the shape assumption diagram of a kind of embodiment of the utility model.

In the embodiment shown in fig. 1, the circuit part of touch delay switch of the present utility model (part in the dotted line) is serially connected with incandescent lamp R by contact L, N _LIn the current supply circuit.In the circuit part, power circuit constitutes bridge rectifier by diode D1～D4, its output terminals A, B are as the dc supply input of circuit, the E end is reference ground, capacitor C 2, C3, resistance R 1 and diode D7, D8 constitute voltage stabilizing circuit, provide D.C. regulated power supply to delay switch circuit.Delay switch circuit is that core constitutes with monostable flipflop and the controllable silicon BCR that large scale integrated circuit IC (WCI4013) constitutes, and the triggering input C of integrated circuit (IC) links to each other with touch pad ZM via resistance R 2, R3; The triggering output Q of integrated circuit (IC) links to each other with the control utmost point G of controllable silicon BCR via diode D6, D5; Integrated circuit (IC) and its peripheral components constitute monostable flipflop with conventional connection.Delay circuit in the delay switch circuit is made of Resistor-Capacitor Unit and voltage-stabiliser tube, diode, wherein R4 ^*After D9 is in parallel, the negative electrode of a termination D6, the other end and C4 ^*Positive pole link to each other and C4 ^*Negative pole be connected in the S end of IC.The anode of controllable silicon BCR and negative electrode are connected to A, B point, and are series at incandescent lamp R _LCurrent supply circuit in.

The course of work of the present utility model is such, as delay switch of the present utility model and incandescent lamp R _LCivil power is inserted in the series connection back, forming peak value through bridge rectifier D1～D4 at controllable silicon BCR two ends is the unidirectional pulse voltage of 300V, between the rising stage of each pulse, pulse voltage is charged to capacitor C 2 by resistance R 1 and diode D7, and D7 is positioned at voltage clamp in 10～12V; Meanwhile, charge to C3 by D8.At the trailing edge of each pulse, the electric charge of the last storage of C2 discharges by R1 and D5.Through several such cycles, the current potential on the C3 promptly reaches about 10V, because the load of the C3 faint cmos circuit that is power consumption so can keep that stable high potential is arranged on the C3, makes the IC maintenance working properly.

When staff soft-touch control plate ZM, R2, R3 constitute loop (high resistant is to people's safety) through human body and ground, the triggering input C that gives IC is with triggering signal, IC is operated in monostable, make that its output Q is a high potential, and keep a fixing time of delay, the control utmost point G that at this moment D6 ends, the breakdown conducting of D5 triggers controllable silicon BCR, make the controllable silicon conducting, and then light incandescent lamp R _LWhen (delay time is: T=0.68*R4 through one section delay time ^** C4 ^*Second, R-M Ω, C-μ F), integrated circuit (IC) is returned original operating state, and output Q is an electronegative potential, D6 conducting at this moment, D5 ends, and controllable silicon ends, R _LExtinguish, thereby finish bright a, circulation of going out.

The utility model also can increase the position of display circuit with indicator cock, and it is by LED, and capacitor C 1 and resistance R 5 are composed in series, and is connected across between 2 of A, the B.When switch was in wait state, IC did not work, and electric current stream LED, R5 and C1 make light-emitting diode send faint light, with the position of indicator cock.

Because circuit volume of the present utility model is little, in the regular tap of can packing into, Fig. 2 is exactly a kind of embodiment of wall type flush type switch.The overall dimension of panel 1 and back cover 5 should conform to the GB requirement of common wall formula flush type switch among the figure.Circuit board 4 is loaded in the back cover by mounting screw 6.Power-line terminal 7 passes back cover and is exposed on the external.Lead 9 connects the annular trigger board 2 of panel central authorities and the trigger end of circuit.Trigger board 2 is at panel surface, and luminous tube 8 is adorned at the center of annular slab 2.Through hole 3 on the panel is the installing hole of switch.Therefore, wall type flush type switch that the utility model constitutes and regular tap are installed as broad as long, and it is convenient completely to use.

Claims

1. touch delay switch, it comprises switch case and two parts of circuit, switch case is made of panel and back cover, circuit board is placed in one, circuit part is made of power circuit and delay switch circuit, the input of power circuit and civil power join, and it exports termination delay switch circuit, for delay switch circuit provides direct-current working volts, it is characterized in that power circuit comprises rectification circuit and voltage stabilizing circuit B; Monostable flipflop and delay circuit and controllable silicon (BCR) formation that delay switch circuit is made of D flip-flop integrated circuit (IC), controllable silicon (BCR) is series in incandescent lamp (RL) current supply circuit, the silicon controlled control utmost point (G) links to each other with the pulse output end (Q) of D flip-flop integrated circuit (IC) with diode (D6) via voltage-stabiliser tube (D5), and the triggering input (C) of D flip-flop integrated circuit (IC) is connected in touch trigger board (ZM); Delay circuit is made of Resistor-Capacitor Unit.

2. touch delay switch as claimed in claim 1, it is characterized in that (D1～D4) constitutes bridge rectifier to power circuit by diode, its output (A, B) is as the dc supply input of circuit, (B) end is reference ground, resistance (R1), electric capacity (C2), diode (D8), electric capacity (C3) are connected in series, voltage-stabiliser tube (D7) and diode (D8), electric capacity (C3) the formation voltage stabilizing circuit that is in parallel; Monostable flipflop and delay circuit and controllable silicon (BCR) formation that delay switch circuit is constituted with large scale integrated circuit (IC), the triggering input (C) of integrated circuit (IC) links to each other with touch pad (ZM) through resistance (R2, R3); The triggering output (Q) of integrated circuit (IC) links to each other with the control utmost point (G) of controllable silicon (BCR) through diode (D6, D5); Delay circuit in the circuit is by resistance (R4 ^*) with after diode (D9) is in parallel, the negative electrode of a terminating diode (D6), the other end and electric capacity (C4 ^*) positive pole link to each other and electric capacity (C4 ^*) negative pole be connected in integrated circuit (IC) (S) end; The anode and the negative electrode of controllable silicon (BCR) are connected to (A, B) point, and are series at incandescent lamp (R _L) current supply circuit in.

3. touch delay switch as claimed in claim 1, its feature can increase display circuit in delay switch, it is by light-emitting diode (LED), electric capacity (C1) and resistance (R5) are composed in series, be connected across between 2 of A, the B, the positive pole of light-emitting diode (LED) connects the A point, and a termination of electric capacity (C1) is with reference to ground (B) point.