CN214381516U

CN214381516U - Prevent dodging wall switch circuit that single fire was got electricity

Info

Publication number: CN214381516U
Application number: CN202022376448.7U
Authority: CN
Inventors: 陈劲游; 陈通
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-10-08
Anticipated expiration: 2030-10-23

Abstract

The utility model discloses a wall switch circuit of anti-flash single fire electricity taking, including the main switch that is arranged between live wire L and lamp line L1 and is used for controlling the power-on and power-off of the load, the impedance unit that is used for controlling the impedance size is connected in series in order between live wire L and lamp line L1, the electricity taking unit that is used for taking electricity and outputting power supply, the main switch control unit that is used for controlling the power-on and power-off of the main switch, the electricity taking unit supplies power to the main control unit, the main control unit instruction input end 6a drives the impedance control unit after receiving the work instruction and reduces the impedance so as to increase the main switch control unit circulation current and control the main switch to conduct, because when the load is disconnected or switched on, the input voltage change when the electricity taking unit takes electricity is not big, the electricity taking unit that need not to design and has high and low input voltage change greatly, the current of the power supply flowing through the load can be reduced when the off state, prevent the load lamp from flickering and slightly shining.

Description

Prevent dodging wall switch circuit that single fire was got electricity

[ technical field ]

The utility model belongs to the wall switch, concretely relates to prevent dodging wall switch circuit that single fire was got electricity.

[ background art ]

With the progress of electronic technology, an intelligent wall switch appears in the market, an active functional unit in the intelligent wall switch can work only by obtaining a working power supply, and most of the existing wall switches only have a live wire and a lamp wire and do not have a zero wire, so that the power taking of the functional unit can only be connected with a load in series, namely the so-called single-fire power taking. This allows current to flow through the load lamp when the intelligent switch is in the off state. Therefore, when no ground wire exists in the wall switch, the existing intelligent switch in the market has a definite requirement on the power of the connected load lamp, namely the current flowing through the load lamp in an off state cannot be larger than the current which enables the load lamp to flicker or slightly brighten, and on the other hand, the existing intelligent wall switch is not rich enough in control mode, and a user cannot conveniently, quickly and randomly select the switch according to different requirements.

[ contents of utility model ]

The utility model overcomes above-mentioned technique is not enough, provides a prevent dodging wall switch circuit that single fire was got electricity, but the off-state current that significantly reduces to have multiple control mode convenient and fast conversion, needn't worry the maloperation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a prevent dodging wall switch circuit that single fire was got electricity which characterized in that: including setting up the main switch who is used for controlling load break-make electricity between live wire L and lamp line L1, still be connected with the impedance unit that series connection is used for controlling the impedance size in order between live wire L and the lamp line L1, be used for getting the electricity unit of getting electricity and output power supply, a main switch control unit for controlling the main switch break-make electricity, it supplies power to main control unit to get the electricity unit, thereby main control unit instruction input 6a drives impedance control unit after receiving work instruction and reduces impedance and reduce impedance and increase the main switch control unit circulation current control main switch and switch on.

As above-mentioned wall switch circuit of electricity is got to single fire of anti-flash, its characterized in that: the impedance unit and the power taking unit which are connected in series are connected in parallel with a compensation unit for compensating reactive current of the impedance unit.

As above-mentioned wall switch circuit of electricity is got to single fire of anti-flash, its characterized in that: be connected with the short circuit load unit that is used for making the load short circuit between main switch control unit power input end 2a and the zero line N, the feedback output 11c of short circuit load unit, control input 11e respectively with main control unit's feedback receiving terminal 6c, control output 6d is connected, be connected with impedance Z in order between main switch control unit power input end 2a and the fire control live wire X, a fire control unit who is used for forcing load work under the emergency, fire control unit's control output 12d and control output 12c are connected with short circuit load unit's control input 11e and control input 11d respectively.

As above-mentioned wall switch circuit of electricity is got to single fire of anti-flash, its characterized in that: the compensation unit is a capacitor when the impedance unit is an inductor, or the compensation unit is an inductor when the impedance unit is a capacitor.

As above-mentioned wall switch circuit of electricity is got to single fire of anti-flash, its characterized in that: the main switch is a bidirectional thyristor T1, one anode end of the bidirectional thyristor T1 is connected with a live wire L as a power supply input end 1a of the main switch, the other anode end of the bidirectional thyristor T1 is connected with a lamp wire L1 as a power supply output end 1b of the main switch, a control end of the bidirectional thyristor T1 is connected with a control input end 1C of the main switch as a control input end 1C of the main switch, the main switch control unit comprises a resistor R1, a connection end of a resistor R1 and a capacitor C1 is connected with a control input end 1C of the main switch as a control output end 2C of the main switch control unit, a connection end of the resistor R1 and a connection end of a resistor R2 is connected with a power taking unit as a power supply input end 2a of the main switch control unit, and a connection end of the capacitor C1 and a connection end of a resistor R1 is connected with the lamp wire L1 as a power supply output end 2b of the main switch control unit.

As above-mentioned wall switch circuit of electricity is got to single fire of anti-flash, its characterized in that: the impedance control unit comprises a bidirectional thyristor T2, a control end of the bidirectional thyristor T2 is connected with one end of a resistor R3, an anode end of the bidirectional thyristor T2 is connected with the impedance unit as a control output end 5b of the impedance control unit, the other end of the resistor R3 is connected with the main control unit as a control input end 5a of the impedance control unit, the other anode end of the bidirectional thyristor T2 is connected with the impedance unit as the other control output end 5C of the impedance control unit, the power taking unit comprises a voltage stabilizing diode T4, a cathode end of the voltage stabilizing diode T4 is respectively connected with an anode end of an electrolytic capacitor C3 and one end of a capacitor C4, a cathode end of the voltage stabilizing diode T4 is connected with a cathode end of a diode T5, a cathode end of the diode T5 is respectively connected with a cathode end of the electrolytic capacitor C3 and the other end of the capacitor C4, a cathode end of the voltage stabilizing diode T4 is connected with a control output end of the impedance control unit as a power input end 4a, the positive terminal of the voltage stabilizing diode T4 is used as the power output terminal 4b of the power taking unit and is connected with the main switch control unit, and the negative terminal of the voltage stabilizing diode T4 and the positive terminal of the diode T5 are used as the power supply output terminal 4c of the power taking unit and are connected with the main control unit.

As above-mentioned wall switch circuit of electricity is got to single fire of anti-flash, its characterized in that: the impedance control unit comprises a light-operated bidirectional controllable silicon T3, the cathode end of a light-emitting diode of the light-operated bidirectional controllable silicon T3 is connected with one end of a resistor R4, the anode end of the light-operated bidirectional controllable silicon T3 is connected with the anode VC of an active unit working power supply, one anode end of the light-operated bidirectional controllable silicon T3 is connected with the impedance unit as a control output end 5b of the impedance control unit, the other anode end of the light-operated bidirectional controllable silicon T3 is connected with the impedance unit as the other control output end 5C of the impedance control unit, the other end of the resistor R4 is used as a control input end 5a of the impedance control unit, the power taking unit comprises a voltage-stabilizing diode T10, the cathode end of the voltage-stabilizing diode T10 is connected with the cathode end of a diode T6, the cathode end of the diode T7, the anode end of an electrolytic capacitor C5 and one end of the capacitor C6, the anode end of the voltage-stabilizing diode T10 is connected with the anode end of a diode T8, the anode end of the diode T9, The negative end of the electrolytic capacitor C5 and the other end of the capacitor C6 are connected, the connection end of the positive end of the diode T6 and the negative end of the diode T8 is used as a power supply input end 4a of the power taking unit and is connected with a power supply output end 5C of the impedance control unit, the connection end of the positive end of the diode T7 and the negative end of the diode T9 is used as a power supply output end 4b of the power taking unit and is connected with the main switch control unit, and the positive end and the negative end of the voltage stabilizing diode T10 are used as a power supply output end 4C of the power taking unit and are connected with the main control unit.

As above-mentioned wall switch circuit of electricity is got to single fire of anti-flash, its characterized in that: a manual switch K1 is arranged between the electric connection end of the main switch and the impedance unit and the live wire L, and a manual switch K2 is connected between the live wire L and the lamp wire L1.

As above-mentioned wall switch circuit of electricity is got to single fire of anti-flash, its characterized in that: the main control unit instruction input end 6a is connected with an induction unit, a remote control unit or a remote control unit.

As above-mentioned wall switch circuit of electricity is got to single fire of anti-flash, its characterized in that: the short-circuit load unit comprises a photoelectric coupler T11 and a light-operated bidirectional controlled silicon T12, a reverse diode is connected in parallel with a pin of a light-emitting diode of the photoelectric coupler T11, one end of a phototriode of the photoelectric coupler T11 is connected with a positive pole VC of a working power supply of the active unit, the other end of the phototriode of the photoelectric coupler T11 is grounded through a resistor R7, a negative pole end of a light-emitting diode of the photoelectric coupler T11 is connected with an anode end of the light-operated bidirectional controlled silicon T12 through a resistor R5, a positive pole end of a light-operated bidirectional controlled silicon T12 is connected with the positive pole VC of the working power supply of the active unit through a resistor R8, a negative pole end of a light-operated bidirectional controlled silicon T12 is connected with one end of the resistor R6, a positive pole end of a light-emitting diode of the photoelectric coupler T11 is connected with the main switch control unit as a power input end 11a of the short-circuit load unit, the other end of the light-operated bidirectional controlled silicon T12 is connected with a zero line N as a power output end 11b of the short-circuit load unit, the other end of a phototriode T11 of a photoelectric coupler is used as a feedback output end 11c of a short-circuit load unit and is connected with a main control unit (connected with a positive end of a light-operated bidirectional controllable silicon T12 light-emitting diode as a control input end 11d of the short-circuit load unit, the other end of a resistor R6 is used as a control input end 11e of the short-circuit load unit and is connected with the main control unit, the fire control unit comprises a photoelectric coupler T13, the positive end of the light-emitting diode of the photoelectric coupler T13 is connected with the negative end of a diode T14 and the negative end of a diode T16, the negative end of the light-emitting diode of the photoelectric coupler T13 is connected with the positive end of the diode T15 and the positive end of a diode T17, the connecting end of a diode T16 and the negative end of a diode T17 is used as a power input end 12a of the fire control unit and is connected with a fire protection live wire X, the connecting end of the diode T14 and the negative end of a diode T15 is used as a power output end 12b of the fire control unit and is connected with an impedance Z, one end of a phototriode T13 of the photoelectric coupler is used as a control output end 12c of the fire control unit and is connected with a control input end 11d of the short-circuit load unit, and the other end of the phototriode T13 of the photoelectric coupler is used as a control output end 12d of the fire control unit and is connected with a control input end 11e of the short-circuit load unit.

The utility model has the advantages that:

1. when the load is switched off or switched on, the input voltage change of the power taking unit is not large when the power is taken, and the power taking unit with large high and low input voltage change is not required to be designed, so that the power taking efficiency can be improved, the current of the power source flowing through the load in an off state can be reduced, the load lamp is prevented from flickering and slightly shining, and the circuit structure is simplified by only arranging the power taking unit. 2. The remote control system has multiple modes of manual operation, induction, local remote control and remote control, so that a user can conveniently, quickly and randomly select the remote control system according to different requirements without worrying about damage of misoperation to equipment personnel. 3. When the wall switch of zero line N, fire control live wire X can be expanded for connecing, do not increase single fire and get the off-state current, do not connect zero line N, fire control live wire X after the extension promptly, can not increase the off-state current.

[ description of the drawings ]

Fig. 1 is a first embodiment of a circuit schematic block diagram of the present invention;

FIG. 2 is a second embodiment of the circuit schematic block diagram of the present invention;

FIG. 3 is a circuit diagram of the main switch and the main switch control unit of the present invention;

fig. 4 is a first embodiment of a circuit diagram illustrating a compensation unit and an impedance unit according to the present invention;

FIG. 5 is a second embodiment of a detailed circuit diagram of the compensation unit and the impedance unit according to the present invention;

FIG. 6 is a first embodiment of a circuit diagram showing the impedance control unit and the power-taking unit according to the present invention;

FIG. 7 is a second embodiment of the connection diagram of the specific circuit of the impedance control unit and the power-taking unit of the present invention;

fig. 8 is a third embodiment of the circuit schematic block diagram of the present invention;

fig. 9 is a fourth embodiment of the circuit schematic block diagram of the present invention;

fig. 10 is a specific circuit connection diagram of the load short circuit unit and the fire control unit of the present invention.

[ detailed description of the invention ]

The following description is further detailed with reference to the accompanying drawings and embodiments of the present invention:

the utility model discloses circuit principle embodiment one:

as shown in fig. 1, a wall switch circuit of anti-flash single fire electricity-taking, including set up the main switch 1 that is used for controlling the load to make a break between live wire L and lamp line L1, still be connected with the impedance unit 3 that is used for controlling the impedance size of series connection in order between live wire L and the lamp line L1, be used for getting the electricity and export the electricity-taking unit 4 of power supply, the main switch control unit 2 that is used for controlling main switch 1 break-make electricity, it supplies power to main control unit 6 to get electricity unit 4, thereby main control unit 6 instruction input 6a receives behind the work order and drives impedance control unit 5 control unit 3 and reduce impedance and increase 2 circulation current control main switch 1 of main switch control unit and switch on.

As shown in fig. 1, 3a of the impedance unit 3 is connected to the live line L and the end 1a of the

main switch

1, 3b is connected to the end 4a of the power taking unit 4, the ends 3C and 3d are respectively connected to the ends 5b and 5C of the impedance control unit 5, the end 5a of the impedance control unit 5 is connected to the end 6b of the

main control unit

6, 1b of the main switch 1 is connected to the lamp line L1 and the end 2b of the main switch control unit 2, the end 1C is connected to the end 2C of the main switch control unit 2, and the end 2a of the main switch control unit 2 is connected to the end 4b of the power taking unit 4. The load connected to the light line L1 and the zero line N are not inside the switch, but inside the dashed box to more clearly illustrate the single hot power operation principle of the wall switch.

When the main control unit 6 receives a signal of the induction or communication unit from the end 6a, a power supply is switched on by a load, if a lamp is switched on, the main control unit 6 sends a control signal to the impedance control unit 5, the impedance control unit 5 enables two ends of the impedance unit 3 to be short-circuited, so that the impedance between L and L1 is reduced, the current flowing into the main switch control unit 2 is increased, after the instantaneous current passes through zero, the current is increased and delayed to trigger the main switch 1 to be switched on, before the main switch 1 is switched on, the current flows through the power taking unit 4 for a certain time, so that the power taking operation can be completed, after the main switch 1 is switched on, the power supply on the live wire L is supplied to the load through the main switch 1, and the lamp wire L1 is added to the load. Because only a small part of each instantaneous current sine waveform after the current zero crossing supplies power to the power taking unit 4, and most of the current sine waveform is applied to the load, the influence on the load is not obvious, and the current sine waveform is used as normal.

When the main control unit 6 sends a reset signal, the power supply is turned off when the load is disconnected, if the lamp is turned off, the impedance control unit 5 is reset and cut off, the short-circuit points at the two ends of the impedance unit 3 are disconnected, so that the impedance between the L and the L1 is increased, the current flowing into the main switch control unit 2 is reduced, the main switch 1 cannot be triggered to be switched on when the sine wave instantaneous current is maximum, but the current flows through the power taking unit 4, so that the power taking work can be completed, the current flowing through the load is reduced as much as possible, the lamp is prevented from flickering or being micro-scale, and the impedance of the impedance unit 3 can be increased on the premise of meeting the power taking requirement.

Because the input voltage change of the power taking unit 4 is not large when the load is switched off and switched on, the power taking unit with large high and low input voltage change does not need to be designed, so that the power taking efficiency can be improved, the current of the power supply flowing through the load in an off state can be reduced, and the lamp can be prevented from flickering and slightly shining. Moreover, only one power taking unit is provided, so that the circuit structure is simplified.

The utility model discloses circuit principle embodiment two:

as shown in fig. 2, the impedance unit 3 and the power-taking unit 4 connected in series are connected in parallel with a compensation unit 7 for compensating for the reactive current of the impedance unit 3.

As shown in fig. 2, the difference between the second embodiment of the circuit principle and the first embodiment of the present invention is that the compensation unit 7 is added, the end 3a of the 7a termination impedance unit 3 of the compensation unit 7, the end 4b of the power taking unit 4 of the 7b termination, and the series circuit formed by the impedance unit 3 and the power taking unit 4 are connected in parallel, so as to compensate the reactive current of the impedance unit 3, and when the circuit resonates, the current flowing into the main switch control unit 2 and the load is greatly reduced compared with the implementation 1, thereby further preventing the flicker and the micro-brightness.

In order to more clearly illustrate the functions of each unit, the following examples briefly describe the specific circuits of each unit embodiment, but do not represent all the practical specific circuits, since there are many existing anti-interference and protection technologies of the circuits, which cannot be listed one by one, and all the circuits optimized to achieve similar functions should belong to the protection scope of the present invention.

The utility model discloses main switch and main switch control unit concrete circuit connection picture:

as shown in fig. 3, the main switch 1 is a triac T1, one anode terminal of the triac T1 is connected to the live line L as the power input terminal 1a of the main switch 1, the other anode terminal of the triac T1 is connected to the lamp line L1 as the power output terminal 1b of the main switch 1, the control terminal of the triac T1 is connected to the control input terminal 1C of the main switch 1, the main switch control unit 2 includes a resistor R1, a connection terminal of the resistor R1 and a capacitor C1 is connected to the control input terminal 1C of the main switch control unit 2 as the control output terminal 2C of the main switch control unit 2, a connection terminal of the resistor R1 and a resistor R2 is connected to the power supply input terminal 2a of the main switch control unit 2 and the power taking unit 4, and a connection terminal of the capacitor C1 and a resistor R1 is connected to the lamp line L1 as the power output terminal 2b of the main switch control unit 2. When the instantaneous current of the sine wave flowing through R2 increases to a sufficient value after zero crossing and is delayed by R1 and C1, the main switch T1 can be triggered to be conducted, and when the current is insufficient, the main switch T1 cannot be triggered to be conducted.

The utility model discloses compensation unit and impedance unit concrete circuit connection picture embodiment one: as shown in fig. 4, the compensation unit 7 is a capacitor when the impedance unit 3 is an inductor.

The utility model discloses compensation unit and impedance unit concrete circuit connection picture embodiment two: as shown in fig. 5, the compensation unit 7 is an inductor when the impedance unit 3 is a capacitor.

The reactance element is adopted to facilitate compensation, the smaller the resistance of the impedance unit is, the smaller the power consumption is, the higher the power taking efficiency is, and the inductance or the capacitance of the compensation unit must be an element for compensating the current of the impedance unit.

The utility model discloses impedance control unit with get electric unit concrete circuit connection picture embodiment one:

as shown in fig. 6, the impedance control unit 5 includes a triac T2, a control terminal of the triac T2 is connected to one end of a resistor R3, an anode terminal of the triac T2 is connected to the impedance unit 3 as a control output terminal 5b of the impedance control unit 5, the other end of the resistor R3 is connected to the main control unit 6 as a control input terminal 5a of the impedance control unit 5, the other anode terminal of the triac T2 is connected to the impedance unit 3 as another control output terminal 5C of the impedance control unit 5, the power-taking unit 4 includes a zener diode T4, a cathode terminal of the zener diode T4 is connected to an anode terminal of an electrolytic capacitor C3 and one end of a capacitor C4, an anode terminal of the zener diode T4 is connected to a cathode terminal of a diode T5, an anode terminal of the diode T5 is connected to a cathode terminal of the electrolytic capacitor C3 and the other terminal of the capacitor C4, a cathode terminal of the zener diode T4 is connected to a control output terminal 5C of the power-taking unit 4 as a power input terminal 4a, the positive terminal of the zener diode T4 is connected to the main switch control unit 2 as the power output terminal 4b of the power taking unit 4, and the negative terminal of the zener diode T4 is connected to the positive terminal of the diode T5 as the power supply output terminal 4c of the power taking unit 4 to the main control unit 6.

As shown in fig. 6, when the voltage at the terminal 5a of the impedance control unit 5 is not equal to the voltage of the control electrode, the current flowing through R3 may trigger the conduction of T2, so as to control the impedance short circuit of the impedance unit 3, and may also connect the current-limiting resistor, which is not shown in the diagram, to the anode of T2 and then connect with the impedance unit 3, so as to prevent the damage of T2 caused by the excessive discharge current of the capacitor when the short-circuit capacitor is conducted; the power taking unit 4 comprises a voltage stabilizing diode T4, capacitors C3, C4 and a diode T5, wherein the cathode of the T4 is connected with one ends of the C3 and the C4 and led out to the positive electrode VC and the end 4a of the active unit working power supply, the anode of the T4 is connected with the cathode of the T5 and led out to the end 4b, the anode of the T5 is connected with the other ends of the C3 and the C4 and led out to the power taking cathode end-which can be different from the ground potential of the active unit working power supply, for example, in order to improve efficiency, when the power taking unit is connected with the ground potential of the active unit working power supply, the two potentials are different, so detailed description is omitted, and the positive electrode VC and the power taking cathode end of the active unit power supply form a power taking output end 4C.

The working principle of electricity taking is as follows: when the sine wave voltage of the mains supply is added to the negative electrode of the T4, the power supply charges the C3 and the C4, current flows out of the negative electrode of the T5, when the sine wave voltage of the mains supply is added to the positive electrode of the T4, the current cannot reversely charge the capacitors C3 and C4 due to the fact that the T5 is cut off, electricity taking is achieved, the C3 is a filter capacitor, and the C4 is an anti-interference capacitor.

Since the working power supply positive electrode VC of the power-taking unit 4 can be in common with the terminal 4a, it can be connected to the terminal 5c of the impedance control unit 5 to implement the control of T2, and when the terminal 6b of the main control unit 6 outputs a low level to make the terminal 5a of the impedance control unit 5a low level, the terminal T2 of the impedance control unit 5 is turned on.

The utility model discloses impedance control unit and the concrete circuit connection picture embodiment of electricity-taking unit two:

as shown in fig. 7, the impedance control unit 5 includes a photo-controlled triac T3, a negative terminal of a light emitting diode of the photo-controlled triac T3 is connected to one terminal of a resistor R4, a positive terminal of the light emitting diode of the photo-controlled triac T3 is connected to a positive terminal VC of the active unit operating power supply, one positive terminal of the photo-controlled triac T3 is connected to the impedance unit 3 as a control output terminal 5b of the impedance control unit 5, another positive terminal of the photo-controlled triac T3 is connected to the impedance unit 3 as another control output terminal 5C of the impedance control unit 5, another terminal of the resistor R4 is connected to a control input terminal 5a of the impedance control unit 5, the power taking unit 4 includes a zener diode T10, a negative terminal of the zener diode T10 is connected to a negative terminal of a diode T6, a negative terminal of a diode T7, a positive terminal of an electrolytic capacitor C5 and one terminal of a capacitor C6, a positive terminal of the zener diode T10 is connected to a positive terminal of a diode T8, The positive end of a diode T9, the negative end of an electrolytic capacitor C5 and the other end of a capacitor C6 are connected, the connection end of the positive end of the diode T6 and the negative end of the diode T8 is used as the power input end 4a of the power taking unit 4 and is connected with the power output end 5C of the impedance control unit 5, the connection end of the positive end of a diode T7 and the negative end of a diode T9 is used as the power output end 4b of the power taking unit 4 and is connected with the main switch control unit 2, and the positive end and the negative end of a voltage stabilizing diode T10 are used as the power supply output end 4C of the power taking unit 4 and are connected with the main control unit 6.

As shown in fig. 7, the anode of the light emitting diode of the impedance control unit 5 is connected to the anode VC of the active unit working power supply, the cathode is led out to the end 5a through R4, and when the end 5a is at a low level, the light emitting diode is conducted in the forward direction to trigger the conduction of the triac, so as to control the impedance short circuit of the impedance unit 3, and similarly to fig. 6, the anode of T3 may be connected to a current limiting resistor, which is not shown in the diagram; the power taking unit 4 comprises a full-wave rectification circuit consisting of diodes T6, T7, T8 and T9, a voltage stabilizing tube T10, capacitors C5 and C6, a cathode of the T10 is connected with a cathode common point end of the T6 and the T7 and one end of the C5 and one end of the C6 and is led out to a power taking output anode +, an anode of the T10 is connected with an anode common point end of the T8 and the T9 and the other ends of the C5 and the C6 and is led out to the power taking output anode, the power taking output anode + and the power taking output anode form a power taking output end 4C, a cathode common point end of the T6 and the T8 is led out to an end 4a, and a cathode common point end of the T7 and the T9 is led out to an end 4 b.

The working principle of electricity taking is as follows: the sine wave voltage with positive and negative polarities of the mains supply is applied to the negative electrode of the T10 and charges C5 and C6, and the actions of C5 and C6 are the same as those of C3 and C4 of 6 a.

The power taking unit 4 can take power in full wave, can improve power taking efficiency, is beneficial to preventing flicker and micro-brightness, can be connected in series with the 5c end of the impedance control unit 5 to realize control of T3, and the 6b end of the main control unit 6 outputs low level to enable the 5a end of the impedance control unit 5 to be low level, so as to trigger the T3 of the impedance control unit 5 to be conducted.

Because simple capacitance filtering efficiency is not high, the power-taking output anode + of the power-taking unit 4 can be connected with a source switch voltage stabilizing circuit and then connected with the source unit working power supply anode VC, and the power-taking output cathode-can be connected with a source switch voltage stabilizing circuit and then connected with the source unit working power supply ground, which is not illustrated for reasons of being easily understood and limited to space.

The utility model discloses circuit schematic block diagram embodiment is three:

as shown in fig. 8, a manual switch K1 is arranged between the electric connection end of the main switch 1 and the impedance unit 3 and the live wire L, and a manual switch K2 is connected between the live wire L and the lamp wire L1; the main control unit 6 is connected with a sensing unit 8, a remote control unit 9 or a remote control unit 10 through an instruction input end 6 a.

As shown in fig. 8, the difference between the third embodiment and the second embodiment of the circuit schematic block diagram of the present invention is that a manual switch K1 is provided between the live line L and the light line L1, and a manual switch K2 is provided between the connection point of the live line L and the manual switch K1 and the connection point of the 1a end of the main switch 1 and the 7a end of the compensation unit 7. When the wall switch needs to be manually closed, only the manual switch K1 needs to be manually closed, when the wall switch needs to be intelligently controlled, only the manual switch K1 needs to be manually opened and the manual switch K2 needs to be closed, the control mode is convenient and quick to switch, moreover, when the manual switch K1 is closed, the power taking unit is short-circuited, the intelligent control loses power supply reset, at the moment, no matter what state the K2 is, the intelligent control is equivalent to automatic failure, and the K1 is opened and is equivalent to manual control quitting, and can not be repeatedly controlled with the intelligent control, so that equipment or personnel can not be injured, and misoperation does not need to be worried about, and when a certain intelligent control function needs to be played, only the corresponding induction unit 8, the remote control unit 9 and the remote control unit 10 need to be closed and are not drawn in a working power switch symbol diagram. In a word, the conversion of various intelligent control modes of manual control, induction control, local remote control and remote control can be conveniently and quickly realized, and misoperation is not worried about. The induction unit 8 that connects can be human infrared heat release electric induction, radar induction unit, pronunciation induction unit, ultrasonic wave induction unit, and the remote control unit 9 that connects can be infrared communication remote control or the circuit unit of electromagnetic wave communication remote control, and the remote control unit 10 can be the circuit unit through internet + WIFI or bluetooth communication.

The utility model discloses circuit schematic block diagram embodiment is four:

as shown in fig. 9, a short circuit load unit 11 for enabling a load to be in a short circuit is connected between a power input end 2a of a main switch control unit 2 and a zero line N, a feedback output end 11c and a control input end 11e of the short circuit load unit 11 are respectively connected with a feedback receiving end 6c and a control output end 6d of a main control unit 6, an impedance Z and a fire control unit 12 for forcing load work in an emergency are sequentially connected between the power input end 2a of the main switch control unit 2 and the fire control line X, and a control output end 12d and a control output end 12c of the fire control unit 12 are respectively connected with a control input end 11e and a control input end 11d of the short circuit load unit 11.

As shown in fig. 9, the utility model discloses circuit principle block diagram embodiment four does the utility model discloses the embodiment that can expand to have zero line N, have the wall switch of fire control live wire X, with the embodiment three-region difference has increased load short circuit unit 11, fire control the control unit 12, the 2a end of 11a termination main switch the control unit 2 of load short circuit unit 11, the 6c end of 11c termination main control unit 6, the 12c end of 11d termination fire control the control unit 12, the 12d end of 6d end and the fire control the control unit 12 of 11e termination

main control unit

6, 12a termination fire control live wire X of fire control the

control unit

12, 12b termination impedance Z's one end, the 2a end of another termination main switch the control unit 2 of impedance Z.

When the main control unit 6 receives the sensing or communication unit signal and the load is to be powered on, e.g. to turn on the light, the main control unit 6 sends a control signal to the impedance control unit 5, before the impedance of the short-circuit impedance unit 3, a reset control signal is sent to the short-circuit load unit 11, the short-circuit load unit 11 is cut off, the short-circuit contacts at two ends of the load are disconnected, when the lamp is turned off, the short circuit load unit 11 is firstly conducted for a short time, if the zero line N is connected, the current exists, because the built-in current limiting resistor does not damage the switch, but the 11c outputs a signal to the 6c end of the main control unit 6, the main control unit 6 records that the zero line N is connected, and then controls the main switch 1 to be disconnected, and keep short circuit load unit 11 to lead, otherwise, short circuit load unit 11 ends, reduces and keeps the power consumption that short circuit load unit 11 leads, when realizing that no zero line N inserts, does not increase the function that the extension can connect the zero line of power consumption.

When emergency needs forced lighting, after fire-fighting live wire X is electrified, fire-fighting control unit 12 directly controls short circuit load unit 11 to cut off, prevent to be switched on by main control unit 6 control, the short circuit point at load both ends is broken, fire-fighting live wire power supply is through impedance Z, main switch control unit 2 supplies power to the load, simultaneously because main switch control unit 2 has load current to flow through steerable main switch 1 switch-on, live wire L also can give the load power supply, improve the reliability of emergency power supply, and hand switch K1, K2 when any state, can not cause equipment or personnel to hurt, so do not worry the maloperation.

After the added short circuit load unit 11, the fire control unit 12 and the impedance Z, when no zero line N exists in the wall switch and the fire line X is disconnected without electricity, the power is not consumed, and the power taking burden is not increased, so that the wall switch with the zero line N and the fire line X can be expanded.

The utility model discloses short circuit load unit and fire control unit embodiment concrete circuit:

in order to illustrate the functions of the short-circuit load unit and the fire control unit more clearly, the following examples briefly describe a specific circuit, which does not represent a specific circuit that can be implemented completely, and since various existing anti-interference and protection technologies of the circuit are more, they cannot be listed one by one, and all circuits that realize similar functions by adopting the existing optimization technology on this basis shall belong to the protection scope of the present invention.

The utility model discloses load short circuit unit and fire control unit concrete circuit connection picture:

as shown in fig. 10, the short circuit load unit 11 includes a photo-electric coupler T11 and a photo-controlled bidirectional thyristor T12, a backward diode is connected in parallel to a pin of a light emitting diode of a photo-electric coupler T11, one end of a photo-electric coupler T11 phototriode is connected to a positive electrode VC of an active unit operating power supply, the other end of the photo-electric coupler T11 phototriode is grounded through a resistor R7, a negative electrode of a light emitting diode of a photo-electric coupler T11 is connected to an anode of the photo-controlled bidirectional thyristor T12 through a resistor R5, a positive electrode of the photo-controlled bidirectional thyristor T12 is connected to the positive electrode VC of the active unit operating power supply through a resistor R8, a negative electrode of the photo-controlled bidirectional thyristor T12 is connected to one end of a resistor R6, a positive electrode of the photo-electric coupler T11 is connected to the main switch control unit 2 as a power input terminal 11a of the short circuit load unit 11, and the other anode of the photo-controlled bidirectional thyristor T12 is connected to a short circuit N as a power output terminal 11b of the short circuit load unit 11, the other end of a phototriode T11 of a photoelectric coupler is used as a feedback output end 11c of a short-circuit load unit 11 to be connected with a main control unit 6, the positive end of a light-operated bidirectional triode thyristor T12 light-emitting diode is used as a control input end 11d of the short-circuit load unit 11, the other end of a resistor R6 is used as a control input end 11e of the short-circuit load unit 11 to be connected with the main control unit 6, the fire control unit 12 comprises a photoelectric coupler T13, the positive end of the light-emitting diode of the photoelectric coupler T13 is connected with the negative end of a diode T14 and the negative end of a diode T16, the negative end of the light-emitting diode of the photoelectric coupler T13 is connected with the positive end of a diode T15 and the positive end of a diode T17, the connection end of the positive end of a diode T16 and the negative end of a diode T17 is used as a power input end 12a of the fire control unit 12 to be connected with a fire protection live wire X, the connection end of the positive end of the diode T14 and the negative end of a connection end of a diode T15 as a power output end 12b of the fire control unit 12 to be connected with an impedance Z, one end of a phototriode T13 of the photoelectric coupler is used as a control output end 12c of the fire control unit 12 and connected with a control input end 11d of the short-circuit load unit 11, and the other end of the phototriode T13 of the photoelectric coupler is used as a control output end 12d of the fire control unit 12 and connected with a control input end 11e of the short-circuit load unit 11.

As shown in fig. 10, the short-circuit load unit 11 includes resistors R5, R6, R7, R8, a photocoupler T11, a light-operated bidirectional thyristor T12, and a reverse diode connected to the led pin of T11, the positive electrode of which is led to the end 11a, the negative electrode of which is connected to one end of R5, one end of the phototriode is connected to the working power VC of the source unit, the other end of which is connected to one end of R7 and led to the end 11c, the other end of R7 is connected to the working power ground of the source unit, the other end of R5 is connected to one anode of the bidirectional thyristor of T12, the other anode of the bidirectional thyristor is led to the end 11b, the positive electrode of the light-operated diode of T12 is connected to one end of R8 and led to the end 11d, the other end of R8 is connected to the working power VC of the source unit, the negative electrode of the light-operated diode of T12 is connected to one end of R6, and the other end of R6 is led to the end 11 e; the fire-fighting control unit 12 comprises a photoelectric coupler T13, diodes T14, T15, T16 and T17, one end of a phototriode of T13 is led out to the end 12c and connected with the end 11d, the other end of the phototriode is led out to the end 12d and connected with the end 11e, a light-emitting diode of T13 is connected with a full-wave rectification circuit consisting of T14, T15, T16 and T17, the common point end of the positive pole of T14 and the negative pole of T15 is led out to the end 12b, and the common point end of the positive pole of T16 and the negative pole of T17 is led out to the end 12 a.

The above description is only exemplary of the present invention and should not be taken as limiting, and any modifications, equivalents, or improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. The utility model provides a prevent dodging wall switch circuit that single fire was got electricity which characterized in that: including setting up main switch (1) that is used for controlling the load to switch on and off between live wire L and lamp line L1, still be connected with impedance unit (3) that series connection is used for controlling the impedance size in order between live wire L and the lamp line L1, be used for getting the electricity and export the electricity of power supply unit (4), main switch the control unit (2) that is used for controlling main switch (1) break-make electricity, it supplies power to main control unit (6) to get electricity unit (4), thereby main control unit (6) instruction input 6a receives drive impedance control unit (5) behind the work order and controls impedance unit (3) and reduce impedance and increase main switch the control unit (2) circulation current control main switch (1) and switch on.

2. A wall switch circuit of claim 1, characterized in that: the impedance unit (3) and the power taking unit (4) which are connected in series are connected in parallel with a compensation unit (7) which is used for compensating reactive current of the impedance unit (3).

3. A wall switch circuit of claim 2, characterized in that: be connected with short circuit load unit (11) that are used for making the load short circuit between main switch control unit (2) power input end 2a and the zero line N, the feedback output 11c of short circuit load unit (11), control input 11e respectively with the feedback receiving terminal 6c of main control unit (6), control output 6d is connected, be connected with impedance Z in order between main switch control unit (2) power input end 2a and the fire control live wire X, fire control unit (12) for compulsory load work under the emergency, the control output 12d and the control output 12c of fire control unit (12) are connected with control input 11e and the control input 11d of short circuit load unit (11) respectively.

4. A wall switch circuit of claim 2, characterized in that: the compensation unit (7) is a capacitor when the impedance unit (3) is an inductor, or the compensation unit (7) is an inductor when the impedance unit (3) is a capacitor.

5. A flashover preventing single fire electricity taking wall switch circuit as claimed in any one of claims 1 to 3, wherein: the main switch (1) is a bidirectional thyristor T1, one anode end of the bidirectional thyristor T1 is connected with a live wire L as a power input end 1a of the main switch (1), the other anode end of the bidirectional thyristor T1 is connected with a lamp wire L1 as a power output end 1b of the main switch (1), a control end of the bidirectional thyristor T1 is connected with a control input end 1C of the main switch (1), the main switch control unit (2) comprises a resistor R1, a connection end of the resistor R1 and a capacitor C1 is connected with a control input end 1C of the main switch control unit (2) as a control output end 2C of the main switch control unit (2), a connection end of the resistor R1 and a resistor R2 is connected with a power taking unit (4) as a power input end 2a of the main switch control unit (2), and a connection end of the capacitor C1 and a connection end of the resistor R1 is connected with the lamp wire L1 as a power output end 2b of the main switch control unit (2).

6. A flashover preventing single fire electricity taking wall switch circuit as claimed in any one of claims 1 to 3, wherein: the impedance control unit (5) comprises a bidirectional thyristor T2, a control end of the bidirectional thyristor T2 is connected with one end of a resistor R3, an anode end of the bidirectional thyristor T2 is connected with the impedance unit (3) as a control output end 5b of the impedance control unit (5), the other end of the resistor R3 is connected with a main control unit (6) as a control input end 5a of the impedance control unit (5), the other anode end of the bidirectional thyristor T2 is connected with the impedance unit (3) as another control output end 5C of the impedance control unit (5), the power taking unit (4) comprises a voltage stabilizing diode T4, a cathode end of the voltage stabilizing diode T4 is respectively connected with an anode end of an electrolytic capacitor C3 and one end of a capacitor C4, an anode end of the voltage stabilizing diode T4 is connected with a cathode end of a diode T5, an anode end of the diode T5 is respectively connected with a cathode end of the electrolytic capacitor C3 and the other end of the capacitor C4, and a cathode end of the voltage stabilizing diode T4 is used as a power supply input end 4a power supply input end of the power taking unit (4) and is connected with the impedance control unit (5) The system output end 5c is connected, the positive end of the voltage stabilizing diode T4 is used as the power supply output end 4b of the power taking unit (4) to be connected with the main switch control unit (2), and the negative end of the voltage stabilizing diode T4 and the positive end of the diode T5 are used as the power supply output end 4c of the power taking unit (4) to be connected with the main control unit (6).

7. A flashover preventing single fire electricity taking wall switch circuit as claimed in any one of claims 1 to 3, wherein: the impedance control unit (5) comprises a light-operated bidirectional thyristor T3, the cathode end of a light-emitting diode of the light-operated bidirectional thyristor T3 is connected with one end of a resistor R4, the anode end of the light-operated bidirectional thyristor T3 is connected with the anode VC of an active unit working power supply, one anode end of the light-operated bidirectional thyristor T3 is connected with the impedance unit (3) as a control output end 5b of the impedance control unit (5), the other anode end of the light-operated bidirectional thyristor T3 is connected with the impedance unit (3) as the other control output end 5C of the impedance control unit (5), the other end of the resistor R4 is connected with a control input end 5a of the impedance control unit (5), the electricity taking unit (4) comprises a voltage-stabilizing diode T10, the cathode end of the voltage-stabilizing diode T10 is connected with the cathode end of a diode T6, the cathode end of a diode T7, the anode end of an electrolytic capacitor C5 and one end of a capacitor C6, the anode end of the voltage-stabilizing diode T10 is connected with the anode end of a diode T8, The positive end of a diode T9, the negative end of an electrolytic capacitor C5 and the other end of a capacitor C6 are connected, the connection end of the positive end of the diode T6 and the negative end of the diode T8 is used as a power input end 4a of a power taking unit (4) to be connected with a power output end 5C of an impedance control unit (5), the connection end of the positive end of a diode T7 and the negative end of a diode T9 is used as a power output end 4b of the power taking unit (4) to be connected with a main switch control unit (2), and the positive end and the negative end of a voltage stabilizing diode T10 are used as a power supply output end 4C of the power taking unit (4) to be connected with a main control unit (6).

8. A flashover preventing single fire electricity taking wall switch circuit as claimed in any one of claims 1 to 3, wherein: a manual switch K1 is arranged between the electric connection ends of the main switch (1) and the impedance unit (3) and the live wire L, and a manual switch K2 is connected between the live wire L and the lamp wire L1.

9. A wall switch circuit of claim 1, characterized in that: the instruction input end 6a of the main control unit (6) is connected with a sensing unit (8), a remote control unit (9) or a remote control unit (10).

10. A wall switch circuit of claim 3, characterized in that: the short-circuit load unit (11) comprises a photoelectric coupler T11 and a light-operated bidirectional controlled silicon T12, a reverse diode is connected in parallel with a pin of a light-emitting diode of a photoelectric coupler T11, one end of a phototransistor T11 is connected with the anode VC of a working power supply of the active unit, the other end of the phototransistor T11 is grounded through a resistor R7, the cathode end of a light-emitting diode of a photoelectric coupler T11 is connected with one anode end of the light-operated bidirectional controlled silicon T12 through a resistor R5, the anode end of a light-operated bidirectional controlled silicon T12 is connected with the anode VC of the working power supply of the active unit through a resistor R8, the cathode end of the light-operated bidirectional controlled silicon T12 is connected with one end of the resistor R6, the anode end of the light-emitting diode of the photoelectric coupler T11 is used as the power supply input end 11a of the short-circuit load unit (11) to be connected with the main switch control unit (2), the other anode end of the light-operated bidirectional controlled silicon T12 is used as the power supply output end of the short circuit load unit (11) to be connected with a zero line N, the other end of a phototriode of a photoelectric coupler T11 is used as a feedback output end 11c of a short-circuit load unit (11) to be connected with a main control unit (6), the positive end of a light-operated bidirectional triode T12 light-emitting diode is used as a control input end 11d of the short-circuit load unit (11), the other end of a resistor R6 is used as a control input end 11e of the short-circuit load unit (11) to be connected with the main control unit (6), the fire control unit (12) comprises a photoelectric coupler T13, the positive end of the light-emitting diode of the photoelectric coupler T13 is connected with the negative end of a diode T14 and the negative end of a diode T16, the negative end of the light-emitting diode of the photoelectric coupler T13 is connected with the positive end of a diode T15 and the positive end of a diode T17, the connecting end of the positive end of the diode T16 and the negative end of a diode T17 is used as a power input end 12a power supply end 12a fire control unit (12) to be connected with a fire control line X, and the connecting end of the positive end of the diode T14 and the negative end of the diode T15 is used as a power supply output end 12b and an impedance control unit (12) to be connected with the fire control unit (6) Z connection, the control output end 12c of photoelectric coupler T13 phototriode as fire control unit (12) is connected with short circuit load unit (11) control input end 11d, and the control output end 12d and the short circuit load unit (11) control input end 11e that photoelectric coupler T13 phototriode other end was fire control unit (12) are connected.