CN203851337U

CN203851337U - Contactless single fire line double controlled touch switch circuit

Info

Publication number: CN203851337U
Application number: CN201420235956.5U
Authority: CN
Inventors: 王景相
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-28
Filing date: 2014-04-28
Publication date: 2014-09-24
Anticipated expiration: 2024-04-28

Abstract

The utility model discloses a contactless single fire line double controlled touch switch circuit which comprises a power supply circuit unit (1), a switch control circuit unit (2) and a touch control circuit unit (3), wherein the power supply circuit unit (1), the switch control circuit unit (2) and the touch control circuit unit (3) are electrically connected in sequence. The switch control circuit unit comprises a single-pole single-throw switch (K2) composed of a bidirectional thyristor (T2), or the switch control circuit unit comprises single-pole double-throw switches (K2 and K3) which are respectively and correspondingly composed of two bidirectional thyristors (T2 and T3). No matter a lamp is bright or goes out, the alternating current voltage provided by the utility model is taken from the bidirectional thyristor. Through touch induction, the operation of the switch is simple and novel. Through contactless design, the switch has the advantages of reliable function and long service life. The power consumption is saved and is less than 0.06W. By using the simple design of single fire line power taking, the cost is reduced; the reliability is improved; and the switch can directly replace an ordinary mechanical switch.

Description

Non-contact type list live wire list dual control touch switch circuit

Technical field

The present invention relates to a kind of lamp control switch circuit, particularly single live wire control touch switch circuit.

Background technology

In daily life, there are a lot of occasions to control respectively certain electrical equipment in two different places, as the corridor lamp of residential building requires downstairs and upstairs all to carry out switch control to it; As the illuminating lamp in bedroom, also requirement can all can be carried out switch control to it on doorway, bedroom and the head of a bed, with easy to use.These all need double control switch.As shown in Figure 1, traditional double control switch is respectively to load onto a single-pole double-throw switch (SPDT) two positions respectively, with the switch of a normally opened contact, a normally-closed contact and a common junction, common junction is connected with in normally opened contact or normally-closed contact one all the time, often by a switch transition once, between the normally opened contact of two switches and normally-closed contact, being respectively provided with wire connects, the common junction S1 of one of them switch is connected with power firestreak, the common junction S2 of another switch is connected with light fixture, and the light fixture other end is connected with zero-power line.In the time that the common junction of these two switches is connected with same wire, light fixture is lit, when common junction is not connected with same wire, light fixture is closed, and therefore, no matter light fixture is in which kind of state, as long as click the state that can change light fixture on any switch, reach the object of dual control.

Along with the raising of people's living standard, the requirement of quality of the life is also improved thereupon, it is touch that majority require switch, because touch control circuit needs working power, the mode of connection of existing double control switch is only introduced a power firestreak and is connected wire with two in switch connection box, and directly introduce without zero line, therefore, the technology that is never applicable to the dual control touch switch circuit of traditional wired mode occurs.Utility model patent number is that 201220186388.5 (bulletins on November 21st, 2012) disclose a kind of single live wire dual control touch switch circuit, circuit complexity in the power-supply circuit unit of this patent, electronic component is many, cost is higher, and relay has contact adhesion, pitting of contact, the life-span is low, the high deficiency of power consumption.

Summary of the invention

The object of the invention is to for overcoming above-mentioned deficiency, and provide, a kind of structure is more simple, the more reliable non-contact type list live wire list dual control touch switch circuit of work.This circuit, by bidirectional triode thyristor power taking, has been abandoned the relay that has contact, adopts bidirectional triode thyristor to form noncontacting switch.

Object of the present invention realizes by following technical solution: non-contact type list live wire list dual control touch switch circuit, comprises the power circuit unit, ON-OFF control circuit unit, the touch control circuit unit that are electrically connected successively; Described ON-OFF control circuit unit comprises the single-pole single-throw switch (SPST) being made up of a bidirectional triode thyristor; Or described ON-OFF control circuit unit comprises by two bidirectional triode thyristors corresponding single-pole double-throw switch (SPDT) forming respectively.

Power circuit of the present invention unit comprises another bidirectional triode thyristor, voltage-stabiliser tube, rectifier bridge, filter capacitor, three terminal regulator.The way to take power of single live wire list dual control touch switch circuit, only has a rectifier bridge, and no matter light fixture is in the bright state state of still going out, and alternating voltage is all to take from bidirectional triode thyristor, and its touching type induction makes switching manipulation simpler novel; Contactless design, makes that switching function is more reliable, the life-span is longer; Its electric consumption is economic, is less than 0.06W; Adopt simpler single live wire power getting design, reduced cost, improved reliability, and can directly substitute standard machinery switch.

Brief description of the drawings

Below in conjunction with accompanying drawing and execution mode, the present invention is described in further detail.

Fig. 1 is the structural representation of known mechanical double controlled switch circuit.

Fig. 2 is the functional-block diagram of non-contact type list live wire list dual control touch switch circuit of the present invention.

Fig. 3 is single live wire single control contact switch control circuit unit of the present invention and connected schematic diagram.

Fig. 4 is single live wire dual control contact switch control circuit unit of the present invention and connected schematic diagram.

Fig. 5 is non-contact type list live wire list dual control touch switch circuit of the present invention (dual control) schematic diagram.

Embodiment

As shown in Figure 2, non-contact type list live wire list dual control touch switch circuit of the present invention, comprises the power circuit unit 1, ON-OFF control circuit unit 2 (comprising single-pole single-throw switch (SPST) K2 or single-pole double-throw switch (SPDT) K2, K3), the touch control circuit unit 3 that are electrically connected successively; As shown in Figure 3, described (single live wire single control touches) ON-OFF control circuit unit 2 comprises the single-pole single-throw switch (SPST) K2 being made up of a bidirectional triode thyristor T2; As shown in Figure 4, or described (single live wire dual control touch) ON-OFF control circuit unit 2 comprises corresponding single-pole double-throw switch (SPDT) K2, the K3 forming respectively by two bidirectional triode thyristor T2, T3, and the model of described bidirectional triode thyristor T2, T3 is BT136.Described power circuit unit 1, ON-OFF control circuit unit 2, the touch control circuit unit 3 of electrical connection successively can be have the relation of being connected (relation in parallel) two groups.

As shown in accompanying drawing 3, Fig. 4, described power circuit unit 1 (power taking effect) comprises bidirectional triode thyristor T1 (serial connection in the line), between the control utmost point G of this bidirectional triode thyristor T1 and the first anode, be connected with voltage-stabiliser tube W1, the W2 (two are 12V) of series connection in the other direction, two ac input ends of rectifier bridge DQ1 are also connected in two anode taps of described bidirectional triode thyristor T1, and this rectifier bridge DQ1 connects filter capacitor CD1, three terminal regulator VR (its another two ends are connected to the 3rd filter capacitor CD3) successively.When the both end voltage of bidirectional triode thyristor T1 is during higher than 12V, the bidirectional triode thyristor T1 conducting that is triggered; Its both end voltage is very low, bidirectional triode thyristor T1 both end voltage is T1 cut-off during lower than 12V, alternating voltage lower than 12V obtains 12V left and right direct voltage after the filtering of rectifier bridge DQ1 rectification, filter capacitor (electrochemical capacitor) CD1, after the voltage stabilizing of three terminal regulator VR (its model is 78L05), obtain 5V voltage again, use for ON-OFF control circuit unit, touch control circuit unit.The second plate end of described bidirectional triode thyristor T1, an ac input end of rectifier bridge DQ1 are all connected on live wire; The first anode termination of this bidirectional triode thyristor T1 has another ac input end of rectifier bridge, and be connected to successively the first resistance R 1 and the first capacitor C 1 and meet again output OUT1, another ac input end of rectifier bridge DQ1 is also connected to successively the 13 resistance R 13 and the second capacitor C 2 and meets another output OUT2 again.

As shown in accompanying drawing 3, Fig. 4, described ON-OFF control circuit unit 2 is single-pole single-throw switch (SPST) K2 (being single control switch), comprise bidirectional triode thyristor T2 and the photoelectrical coupler U1 of series connection: when triggering signal is high level, the light-emitting diode D1 conducting of the input of photoelectrical coupler U1, bidirectional triode thyristor T2 triggering and conducting, light fixture is lighted; When triggering signal is low level, light-emitting diode D1 cut-off, bidirectional triode thyristor T2 cut-off, light fixture is closed; Or described ON-OFF control circuit unit 2 is single-pole double-throw switch (SPDT) K2, K3 (being double control switch), the bidirectional triode thyristor T2 that comprises series connection carries out common formation in parallel with the bidirectional triode thyristor T3 connecting and photoelectrical coupler U2 again with photoelectrical coupler U1: when triggering signal is high level, the input light-emitting diode D1 cut-off of photoelectrical coupler U1, the input light-emitting diode D2 conducting of photoelectrical coupler U2, bidirectional triode thyristor T2 cut-off, bidirectional triode thyristor T3 conducting; When triggering signal is low level, the light-emitting diode D1 conducting of photoelectrical coupler U1, the light-emitting diode D2 cut-off of photoelectrical coupler U2, bidirectional triode thyristor T2 conducting, bidirectional triode thyristor T3 ends, and realizes the object of dual control.The model of described photoelectrical coupler U1, U2 is MOC3041; This photoelectrical coupler U1 joins with one end of rectifier bridge DQ1 by the 12 resistance R 12 by the 11 resistance R 11, photoelectrical coupler U2.

As shown in Figure 4, described touch control circuit unit 3 (microprocessing systems of employing composition taking single-chip microcomputer IC1 as core: Touch control) comprises the single-chip microcomputer IC1 of model as PIC640,9 pin of this single-chip microcomputer IC1 are that input (by the tenth resistance R 10) is connected to touch utmost point M (copper sheet formation), when touch, produce capacitance variations, its internal processes can make the level of output change and (between 9 pin of this single-chip microcomputer IC1 and 1 pin, be connected to the 5th capacitor C 5; Between 2 pin of this single-chip microcomputer IC1 and 14 pin, be connected to the 8th resistance R 8; 14 pin of this single-chip microcomputer IC1 are that output is connected to respectively LED in parallel 1 (connecting with the 4th resistance R 4) and LED 2 (connecting with the 5th resistance R 5), LED 3 (connecting with the 6th resistance R 6) and LED 4 (connecting with the 7th resistance R 7) (i.e. each two of red, blue LED) in parallel, be used to indicate the state of switch, in the position of energy indicator cock at night, with person easy to use.14 pin (output) of this single-chip microcomputer IC1 also join with photoelectrical coupler U1, the U2 of ON-OFF control circuit unit 2 respectively.

As shown in accompanying drawing 4, Fig. 5, operation principle of the present invention is as follows: this single live wire (list) dual control touch switch circuit uses in paired mode, between two single live wire dual control soft-touch controls, be respectively equipped with wire A, B, connect respectively two outputs of two switches, the input line tie point of one of them switch is connected with power firestreak L, the input line tie point of another switch is connected with zero-power line N through light fixture LP, and power firestreak L end, zero line N end also can exchange certainly; In the time of two bidirectional triode thyristor T2 of two switch tops and T5 conducting simultaneously, hot voltage is delivered to one end, top of light fixture LP by bidirectional triode thyristor T1, T2, T5, T4, a following terminal connecting zero line voltage of light fixture LP, thus form loop, and light fixture LP is in bright state; When following two bidirectional triode thyristor T3, the T6 conductings simultaneously of two switches too, light fixture is in bright state; Otherwise when one of the bidirectional triode thyristor of two switches is conductings of top, another is following conducting, hot voltage can not arrive light fixture LP top, can not form loop, and light fixture LP is in the state of going out.The conducting of bidirectional triode thyristor or cut-off are completed by control circuit.

Claims

1. non-contact type list live wire list dual control touch switch circuit, is characterized in that: the power circuit unit (1), ON-OFF control circuit unit (2), touch control circuit unit (3) that comprise electrical connection successively; Described ON-OFF control circuit unit (2) comprises the single-pole single-throw switch (SPST) (K2) being made up of a bidirectional triode thyristor (T2); Or described ON-OFF control circuit unit (2) comprises by two bidirectional triode thyristors (T2, T3) corresponding single-pole double-throw switch (SPDT) (K2, K3) forming respectively.

2. non-contact type list live wire list dual control touch switch circuit according to claim 1, is characterized in that: the power circuit unit (1), ON-OFF control circuit unit (2), touch control circuit unit (3) of described electrical connection is successively for having two groups of the relation of being connected.

3. non-contact type list live wire list dual control touch switch circuit according to claim 1 and 2, it is characterized in that: described power circuit unit (1) comprises bidirectional triode thyristor (T1), between the control utmost point (G) of this bidirectional triode thyristor (T1) and the first anode, be connected with the voltage-stabiliser tube (W1, W2) of series connection in the other direction, two ac input ends of rectifier bridge (DQ1) are also connected in two anode taps of described bidirectional triode thyristor (T1), and the output of this rectifier bridge (DQ1) connects filter capacitor (CD1), three terminal regulator (VR) successively.

4. non-contact type list live wire list dual control touch switch circuit according to claim 3, is characterized in that: the second plate end of described bidirectional triode thyristor (T1), an ac input end of rectifier bridge (DQ1) are all connected on live wire; The first anode termination of this bidirectional triode thyristor (T1) has another ac input end of rectifier bridge, and be connected to successively the first resistance (R1) and the first electric capacity (C1) and connect again output (OUT1), another ac input end of rectifier bridge (DQ1) is also connected to successively the 13 resistance (R13) and connects another output (OUT2) with the second electric capacity (C2) again.

5. non-contact type list live wire list dual control touch switch circuit according to claim 1 and 2, it is characterized in that: described ON-OFF control circuit unit (2) is single-pole single-throw switch (SPST) (K2), comprise connected bidirectional triode thyristor (T2) and photoelectrical coupler (U1); Or described ON-OFF control circuit unit (2) is single-pole double-throw switch (SPDT) (K2, K3), comprise that the bidirectional triode thyristor (T2) of series connection carries out common formation in parallel with the bidirectional triode thyristor of connecting (T3) and photoelectrical coupler (U2) again with photoelectrical coupler (U1).

6. non-contact type list live wire list dual control touch switch circuit according to claim 1 and 2, it is characterized in that: described touch control circuit unit (3) comprises that model is the single-chip microcomputer (IC1) of PIC640,9 pin of this single-chip microcomputer (IC1) are that input is connected to the touch utmost point (M), when touch, produce capacitance variations, its internal processes can make the level of output change; 14 pin of this single-chip microcomputer (IC1) are that output is connected to respectively light-emitting diode in parallel (LED1) and light-emitting diode (LED2), light-emitting diode (LED3) and light-emitting diode (LED4) in parallel.

7. according to the non-contact type list live wire list dual control touch switch circuit described in claims 6, it is characterized in that: between 9 pin of this single-chip microcomputer (IC1) and 1 pin, be connected to the 5th electric capacity (C5); Between 2 pin of this single-chip microcomputer (IC1) and 14 pin, be connected to the 8th resistance (R8).