CN2071403U

CN2071403U - Multifunctional contact control switch

Info

Publication number: CN2071403U
Application number: CN 89208855
Authority: CN
Inventors: 李国民
Original assignee: YANDONG ELECTRONIC SWITCH FACTORY
Current assignee: YANDONG ELECTRONIC SWITCH FACTORY
Priority date: 1989-06-20
Filing date: 1989-06-20
Publication date: 1991-02-13

Abstract

The utility model relates to a multifunctional contact control switch, comprising a switch box, a metal contact piece M and a control circuit arranged in the switch box. The main characteristic is that the control circuit adopts the resistor voltage divider including the human body's resistance to be served as a signal detection circuit and adopts a double-D trigger and controlled silicon as a signal control and output component. Meanwhile, the control circuit is also provided with the loop of power supply memory. The utility model adopts the structure with the advantages of small size, low static power consumption, stable working, etc. Meanwhile, the utility model also has the multiple functions of memory (the original state is still kept after moment power cut) and automatic light cut (after power cut), the remote multi-connection control of single wire, night vision indication, etc.

Description

Multifunctional contact control switch

The utility model relates to a kind of multi-functional touch switch.

Existing touch switch adopts oscillatory type or bridge balance formula circuit as signal deteching circuit usually, relay is as control device, small product size is big, the quiescent dissipation height owing to adopt oscillatory type circuit or bridge balance formula circuit, makes that this kind switch job stability is not high, thereby be subject to disturb and cause misoperation, in addition, this kind switch debug difficulties does not possess memory (still maintaining the original state behind the instant cut-off), turns off the light automatically functions such as (outage back) and single line far distance controlled.

The purpose of this utility model provides that a kind of volume is little, quiescent dissipation is low, job stability is high, and has memory, turns off the light and the multi-functional touch switch of multiple function such as single line far distance controlled automatically.

The control circuit of the multi-functional touch switch that provides after the technical essential of solution above-mentioned purpose is to improve adopts and comprises that the electric resistance partial pressure type circuit of the resistance of human body own is as signal deteching circuit, double D trigger, controllable silicon are as control device, be equipped with diode, some electric capacity, resistive arrangement and form, and form a circuit with the memory and the function of turning off the light automatically by some electric capacity, resistance.

Below in conjunction with embodiment and accompanying drawing thereof the utility model is elaborated.

Fig. 1 is the switch enclosure front view of the utility model embodiment;

Fig. 2 is the frame principle figure of control circuit among the utility model embodiment;

Fig. 3 is the control circuit electric wire figure among the utility model embodiment.

Present embodiment is by switch enclosure (1), metal contact M(2) and the control circuit that is installed in the switch enclosure form.Control circuit comprises that signal deteching circuit (a), monostable shaping circuit (b), bistable state promote circuit (c) and output is controlled, indicating circuit (D), and signal deteching circuit is an electric resistance partial pressure type circuit, comprises R ₂, R ₃, metal contact M and R ₂End connects, when touching M, by the resistance of human body own, R ₂, R ₃The bleeder circuit of forming is promptly obtained voltage signal input double D trigger CD4013; The monostable shaping circuit is by 1/2 double D trigger CD4013, resistance R ₁, capacitor C ₁And diode D ₁Form; Bistable state promotes circuit and is made up of 1/2 double D trigger CD4013; The voltage signal of being obtained by signal deteching circuit removes to trigger the monostable shaping circuit through double D trigger CD4013 " 11 " pin, the monostable time of monostable shaping circuit is about 1 second, because the voltage signal that is added on " 11 " pin is an alternation, monostable shaping output circuit just goes to control bistable state with pulse of per second and promotes circuit; Output control, indicating circuit comprise controllable silicon CR ₁AM, indicator light HL, capacitor C ₂, C ₃And resistance R ₄, R ₅, R ₇, C wherein ₂, C ₃, R ₄Form memory (still maintaining the original state behind the instant cut-off) and turn off the light (outage back) circuit automatically; The pulse signal of monostable shaping circuit output promotes circuit through bistable state and removes to control the controllable silicon CR that exports in control, the indicating circuit ₁AM is again through controllable silicon CR ₁AM removes control load (XD), controllable silicon CR ₁AM passes through R ₅Link to each other R with " 1 " pin of double D trigger ₇, HL is parallel on the controllable silicon, play night vision and mains switch and whether indicate, when load, the controllable silicon conducting, the A point is in electronegative potential, the HL lamp is closed, on the contrary the A point is in high potential, the HL lamp is bright.Memory in the present embodiment and the automatic circuit for lamp that closes are by C ₂, C ₃, R ₄Form, memory time about 20S, owing to C ₃Capacitance is bigger, and the double D trigger integrated circuit (IC) power consumption is atomic, if circuit instant cut-off (less than 20S), the output of circuit will keep original state, at this moment, and by C ₃Release energy and keep power supply, if power-off time is greater than 20S, C ₃Energy discharges and finishes, down circuitry, and when sending a telegram here, the R point in the memory circuit is in high potential again, and the clear terminal of double D trigger " 4 " is a high potential also, and control circuit is not worked.Present embodiment can utilize solid conductor to connect with metal contact M, realizes n joint control system, (n is a natural number).

Present embodiment in use, only with hand touches metal contact M(far distance controlled in this way, touch the lead that connects with M), signal deteching circuit is promptly obtained a voltage signal, input monostable shaping circuit, promote circuit through bistable state again signal is sent to output control, indicating circuit, by controllable silicon CR ₁AM removes control load (XD), makes it work; If need load (XD) to quit work, only with hand touches metal contact M(far distance controlled in this way, touches the lead that connects with M), the monostable shaping circuit counter-rotating in the control circuit, reverse signal promotes circuit through bistable state, is defeated by the controllable silicon CR in output control, the indicating circuit ₁AM quits work load (XD).When load (XD) is in running order, if have a power failure suddenly, because memory and the effect of pass circuit for lamp automatically, if interruption duration is shorter than 20S, load (XD) is still in running order, if interruption duration is greater than 20S, when sending a telegram here again, load (XD) is not worked, if need make it to work again, gets and touches sheet metal M again.

The utility model makes that multi-functional touch switch volume is less, quiescent dissipation significantly reduces, job stability obviously improves owing to possessed said structure, and have memory and turn off the light automatically, multiple functions such as the remote multi-joint control of single line and night vision indication.

Claims

1, a kind of multi-functional touch switch that comprises switch enclosure, metal contact M and be installed in the control circuit in the switch enclosure, it is characterized in that: described control circuit by signal deteching circuit (a), monostable shaping circuit (b), bistable state promote circuit (c) and output control, indicating circuit (D) is formed, signal deteching circuit is one to comprise the dividing potential drop circuits for triggering of the resistance of human body own; The monostable shaping circuit is by 1/2 double D trigger, resistance R ₁, capacitor C ₁And diode D ₁Form; Bistable state promotes circuit and is made up of 1/2 double D trigger; Output control, indicating circuit are by controllable silicon CR ₁AM, indicator light HL, capacitor C ₂, C ₃And some resistance are formed; R in metal contact M and the sample circuit ₂End connects.

2, multi-functional touch switch according to claim 1 is characterized in that: the capacitor C in described output control, the indicating circuit ₂, C ₃, resistance R ₄Form memory (can maintain the original state behind the instant cut-off) and turn off the light (outage back) circuit automatically.

3, multi-functional touch switch according to claim 1 after it is characterized in that solid conductor and metal contact M connecting, can be realized n joint control system (n is a natural number).