CN218938818U - Single live wire intelligent switch control circuit - Google Patents

Single live wire intelligent switch control circuit Download PDF

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Publication number
CN218938818U
CN218938818U CN202320126813.XU CN202320126813U CN218938818U CN 218938818 U CN218938818 U CN 218938818U CN 202320126813 U CN202320126813 U CN 202320126813U CN 218938818 U CN218938818 U CN 218938818U
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circuit
pin
power
switch
resistor
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李克龙
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The utility model discloses a single live wire intelligent switch control circuit, which is characterized in that: the power supply circuit comprises a double-control switch K1, a power input terminal P1, a power output terminal P2, an electric appliance switch control circuit, a switch detection circuit and an MCU main chip circuit; the input end of the double-control switch K1 is connected with the live wire, the output end of the double-control switch K1 is connected with the first input end of the power input terminal P1, and the zero line is connected with the second input end of the power input terminal P1; a power input terminal P1 for connecting to a power source; a power output terminal P2 for connecting an electric appliance; the electric appliance switch control circuit is used for controlling the current power on or power off of an electric appliance on the electric power output terminal P2; the switch detection circuit is used for detecting whether a user presses the double-control switch K1; and the MCU main chip circuit is used for receiving the detection switch detection circuit signal. The utility model can detect whether the mechanical wall switch is pressed, the single live wire is connected with the double-control switch, and the double-control switch has no zero line, thereby sensing whether a user presses the double-control switch.

Description

Single live wire intelligent switch control circuit
Technical Field
The utility model relates to the technical field of intelligent home, in particular to a single-live-wire intelligent switch control circuit.
Background
In the application aspect of the internet of things, intelligent home, intelligent industry and intelligent sensing, whether a user presses a peripheral mechanical wall switch or not is often required to be detected, or whether power failure exists in the current commercial power or not is often required, but all products in the aspects of all intelligent home, intelligent industry, intelligent sensing and the like in the current market cannot directly detect the conditions, or delay time is excessively long, so that requirements and the like cannot be met in specific application scenes.
Most existing households have no neutral wire reserved in the wall switch box, only live wire in and live wire out, and users have been used to control the on or off of lighting and other devices by pressing the wall switch.
At present, under the condition that no zero line exists in the switch box, a circuit for detecting whether a user presses the double-control switch is not available.
Therefore, the single-live wire intelligent switch control circuit is provided.
Disclosure of Invention
The utility model aims to provide a single-live wire intelligent switch control circuit which is used for solving the problem that whether a user presses a double-control switch or not is detected under the condition that no zero line exists in a switch box.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a single fire wire intelligent switch control circuit, comprising:
the double-control switch K1, the power input terminal P1, the power output terminal P2, the electrical appliance switch control circuit, the switch detection circuit and the MCU main chip circuit;
the input end of the double-control switch K1 is connected with the live wire, the output end of the double-control switch K1 is connected with the first input end of the power input terminal P1, and the zero line is connected with the second input end of the power input terminal P1;
a power input terminal P1 for connecting to a power source;
a power output terminal P2 for connecting an electric appliance;
the electric appliance switch control circuit is used for controlling the current power on or power off of an electric appliance on the electric power output terminal P2, is connected with the output end of the electric power input terminal P1 and the output end of the electric power output terminal P2, and is connected with the MCU main chip circuit;
the input end of the switch detection circuit is connected with the first output end and the second output end of the power input terminal P1, and the action of the double-control switch K1 is converted into a signal which can be identified by the MCU main chip circuit and is used for detecting whether a user presses the double-control switch K1;
and the input end of the MCU main chip circuit is connected with the output end of the switch detection circuit and is used for receiving the signal of the switch detection circuit.
Further, the electric switch control circuit is a relay control circuit or a controllable silicon control circuit or a triode or a MOS tube.
Further, the switch detection circuit comprises an alternating current optocoupler U4, a resistor R16, a resistor R15, a capacitor C2, a MOS tube Q2, a resistor R2 and a resistor R3; the second pin of the alternating current optical coupler U4 is connected with the second output end of the power input terminal P1, the first pin of the alternating current optical coupler U4 is connected with the first output end of the power input terminal P1 after being connected with the resistor R16, the third pin of the alternating current optical coupler U4 is connected with the resistor R15 and then grounded, the third pin of the alternating current optical coupler U4 is connected with the capacitor C2 and then grounded, and the fourth pin of the alternating current optical coupler U4 is connected with the +5V power output end;
the third pin of the alternating current optocoupler U4 is connected with the G pole of the MOS tube Q2, the D pole of the MOS tube Q2 is grounded, the S pole of the MOS tube Q2 is connected with the +5V power supply output end after passing through the resistor R2, and the S pole of the MOS tube Q2 is connected with the MCU main chip circuit after passing through the resistor R3.
Further, the relay control circuit comprises a relay K2, a diode D3 and a triode Q1, wherein a third pin of the relay K2 is connected with a first output end of the power input terminal P1, a third pin of the relay K2 is connected with a second pin of the power output terminal P2, a first pin of the power output terminal P2 is connected with a second output end of the power input terminal P1, and a third pin of the relay K2 is connected with +5V; the anode of the diode D3 is connected with the first pin of the relay K2, and the cathode of the diode D3 is connected with the second pin of the relay K2; the collector of the triode Q1 is connected with the second pin of the relay K2, the collector emitter of the triode Q1 is grounded, the base of the triode Q1 is connected with the resistor R8 and then grounded, and the collector base of the triode Q1 is connected with the resistor R9 and then connected with the MCU main chip circuit.
Further, the remote control device further comprises a 433 wireless communication module, wherein the 433 wireless communication module is connected with the MCU main chip circuit, and the 433 wireless communication module is used for being connected with external remote control equipment in a wireless mode.
Further, the model of the MOS tube Q2 is 3400MOS tube.
Further, the MCU main chip circuit comprises an MCU chip, and the model of the MCU chip is FT60E121.
Further, the ac optocoupler U4 model is EL354.
Further, the type of the relay K2 is Y3F-SS-105DM.
Further, the LED display device further comprises an indicator lamp circuit, wherein the indicator lamp circuit is connected with the MCU main chip circuit, the indicator lamp circuit comprises an indicator lamp D1 and a resistor R2, the negative electrode of the indicator lamp D1 is connected with the MCU main chip circuit, the positive electrode of the indicator lamp D1 is connected with one end of the resistor R2, and the other end of the resistor R2 is connected with a +5V power supply.
Compared with the prior art, the utility model has the beneficial effects that: the utility model can detect whether the mechanical wall switch is pressed, the single live wire is connected with the double-control switch, and the double-control switch has no zero line, thereby sensing whether a user presses the double-control switch.
Drawings
FIG. 1 is a circuit block diagram of an embodiment of the present utility model;
FIG. 2 is a circuit diagram of an embodiment of the present utility model;
fig. 3 is a circuit diagram of a 433 wireless communication module according to an embodiment of the utility model;
fig. 4 is a circuit diagram of an indicator light according to an embodiment of the utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides a single live wire intelligent switch control circuit, comprising:
the double-control switch K1, the power input terminal P1, the power output terminal P2, the electrical appliance switch control circuit, the switch detection circuit and the MCU main chip circuit;
the input end of the double-control switch K1 is connected with the live wire L or the positive electrode, the output end of the double-control switch K1 is connected with the first input end of the power input terminal P1, and the zero line N or the negative electrode of the double-control switch K1 is connected with the second input end of the power input terminal P1;
a power input terminal P1 for connecting to a power source;
a power output terminal P2 for connecting an electric appliance;
the electric appliance switch control circuit is used for controlling the current power on or power off of an electric appliance on the electric power output terminal P2, is connected with the output end of the electric power input terminal P1 and the output end of the electric power output terminal P2, and is connected with the MCU main chip circuit;
the input end of the switch detection circuit is connected with the first output end and the second output end of the power input terminal P1, and the action of the double-control switch K1 is converted into a signal which can be identified by the MCU main chip circuit and is used for detecting whether a user presses the double-control switch K1;
and the input end of the MCU main chip circuit is connected with the output end of the switch detection circuit and is used for receiving the signal of the switch detection circuit.
The power input terminal P1 provides electric energy for the circuit and the output, and can be commercial power, a battery or the like. The subsequent circuit is a step-down rectifying circuit and provides electric energy for the work of the circuit; when the power input terminal P1 is the commercial power input terminal P1, the rear end of the power input terminal P1 is connected with an AC-DC buck rectifying circuit, the AC-DC buck rectifying circuit comprises a voltage stabilizing circuit and an AC-DC buck circuit, the voltage stabilizing circuit comprises a voltage stabilizing resistor TZR1, a resistor R1 and a diode D8, the voltage stabilizing circuit is used for converting alternating current into direct current or removing alternating current components, and the device can stabilize voltage and inhibit peak when peak is input; the AC-DC voltage reduction circuit reduces the input voltage to a preset voltage and outputs the voltage, the AC-DC voltage reduction circuit comprises an AC-DC chip, the type of the AC-DC chip is BP2525D, and the input end of the voltage stabilizing circuit is connected with the first output end and the second output end of the mains supply input terminal P1 and is used for converting the input alternating current into direct current; the input end of the AC-DC voltage reduction circuit is connected with the output end of the voltage stabilizing circuit, is used for reducing the voltage output by the voltage stabilizing circuit to a preset voltage, provides power for each circuit, provides power for a follow-up switch detection circuit, an MCU main chip circuit and an electric appliance switch control circuit, and is connected with the mains supply after passing through the double-control switch K, converts the switching action into a signal which can be identified by the MCU and is used for detecting whether a user presses the double-control switch K1.
The electric appliance switch control circuit is connected with the mains power input terminal P1 and the household appliance wiring terminal P2 and is used for controlling the current power-on or power-off of the household appliance.
In the present application, the electric power input terminal P1 is taken as an example of the commercial electric power input terminal P1, and the present utility model can detect whether the mechanical wall switch is pressed, and the condition that no zero line exists in the double-control switch position is not used, and the wall switch must be kept in the closed state all the time. P1 is the commercial power input terminal after two accuse switches K1, and P2 is commercial power output terminal or electric power output terminal for connect the electrical apparatus, and P6 is MCU procedure burning mouth, can neglect.
Further, the switch detection circuit comprises an alternating current optocoupler U4, a resistor R16, a resistor R15, a capacitor C2, a MOS tube Q2, a resistor R2 and a resistor R3; the second pin of the alternating current optical coupler U4 is connected with the second output end of the power input terminal P1, the first pin of the alternating current optical coupler U4 is connected with the first output end of the power input terminal P1 after being connected with the resistor R16, the third pin of the alternating current optical coupler U4 is connected with the resistor R15 and then grounded, the third pin of the alternating current optical coupler U4 is connected with the capacitor C2 and then grounded, the fourth pin of the alternating current optical coupler U4 is connected with the output end of the +5V power supply, and the +5V power supply can be provided by completing rectification and voltage reduction through an AC-DC voltage reduction circuit or provided by an external battery.
The third pin of the alternating current optocoupler U4 is connected with the G pole of the MOS tube Q2, the D pole of the MOS tube Q2 is grounded, the S pole of the MOS tube Q2 is connected with the +5V power supply output end after passing through the resistor R2, and the S pole of the MOS tube Q2 is connected with the fifth pin of the MCU main chip circuit after passing through the resistor R3. And P2 is a power output terminal for connecting an electrical appliance, and the power output terminal P2 can be a wiring terminal of the lamp.
Principle of: the input end of the double-control switch K1 is connected with the live wire L, the zero line N and the power line of the live wire L are input into the power input terminal P1, rectification and voltage reduction are completed through the AC-DC voltage reduction circuit, and 220V voltage reduction and rectification of the commercial power are carried out to 5V for the subsequent circuit to use. Wherein, K1 is a double-control switch, namely a conventional single-pole double-throw switch, which is a conventional standard commodity and is sold in various big hardware stores. And P1 is a mains supply input terminal and is connected with the mains supply after the double-control switch. R16 is a resistor, and after the voltage of 220V or 110V of the commercial power is reduced by R16, a safe voltage is provided for the alternating current optocoupler U4. The alternating current optical coupler U4 is an alternating current optical coupler. The forward light emitting diode inside the same lights up when the forward voltage is applied to the pins 1 and 2, and the reverse light emitting diode inside the same lights up when the reverse voltage is applied to the pins 1 and 2. That is, the internal diode is always in a light emitting state no matter the pins 1 and 2 of the ac optocoupler U4 are forward voltage or reverse voltage. The receiving end of the alternating current optical coupler U4 is a photoresistor, after the receiving end senses illumination, the 3 and 4 pins of the alternating current optical coupler U4 are in a communicated state, and when the receiving end does not sense illumination, the 3 and 4 pins of the alternating current optical coupler U4 are in a disconnected state. Description of C2 and R15 for connection between pin 3 of ac optocoupler U4 and ground: the wiring capacitor C2 is connected with the front end of the U4 and is subjected to alternating current after being subjected to R16 voltage reduction, so that at the zero point of the alternating current, two light emitting diodes in the U4 cannot be lightened, at the moment, the 3 rd pin of the alternating current optical coupler U4 is in a disconnected state, and when the 3 rd pin of the alternating current optical coupler U3 is disconnected, the 3 rd pin of the alternating current optical coupler U3 cannot be communicated with +5V, but is grounded, so that a capacitor is required to be used at the 3 rd pin of the alternating current optical coupler U4, the capacitor C2 is charged in the upper half cycle and the lower half cycle of a sine wave of the mains supply, the capacitor C2 discharges outwards at the zero point of the mains supply, and the 3 rd pin voltage of the alternating current optical coupler U4 cannot reach the ground in sequence. In order to ensure timeliness of circuit response and to avoid +5V short circuit to ground when the 3 and 4 pins of the AC optical coupler U4 are conducted, a resistor is added to the 3 pin of the AC optical coupler U4, and mainly to avoid the 3 pin of the AC optical coupler U4 short circuit to ground and also to improve the discharging speed of the capacitor C2. The capacitor C2 stores electric energy in the up-down cycle, and should be released when the up-down waveform is switched. And the 3 rd pin of the alternating current optical coupler U4 can obtain a waveform with the minimum voltage of about 1.2V and only the positive half shaft through shaping the alternating current optical coupler U4 by the R15 and the capacitor C2. The model of the MOS tube Q2 is 3400MOS tube, the third pin of the alternating current optocoupler U4 is connected with the G pole of the MOS tube Q2, therefore, when the double-control switch K1 does not do any action after the G pole voltage is shaped by R15 and C2, the G pole voltage is higher than the conduction voltage of the MOS tube Q2, the 2 nd pin and the 3 rd pin of the MOS tube Q2 are conducted, and R3 is in a low level. When a user presses the double-control switch K1, the 1 and 2 pins of the alternating current optical coupler U4 lose power instantly, the light emission is immediately stopped in the alternating current optical coupler U4, the 3 rd pin and the 4 pin are disconnected, the 3 rd pin of the alternating current optical coupler U4 is 0V, the 1 st pin of the MOS tube Q2 is 0V, the 2 nd and 3 rd pins of the MOS tube Q2 are disconnected and no longer reach the ground, meanwhile, the 3 rd pin of the MOS tube Q2 is high, KSDD outputs high level at the moment of pressing the K1, the action of pressing the double-control switch K1 by the user is informed to the subsequent other circuits in a high level mode, such as an MCU main chip circuit, the MCU main chip circuit detects the action of pressing the double-control switch K1 by the user, the MCU main chip circuit can respond or react through the indication lamp circuit to respond to the action of the user, such as the action of state switching, and the actions similar to the distribution network can be triggered by pressing the double-control switch K1 for multiple times. The utility model can detect whether the mechanical wall switch is pressed down or not, the single live wire is connected with the double-control switch, and the double-control switch has no zero line, so that whether the user presses the double-control switch or not is sensed.
Further, the intelligent remote control device also comprises a 433 wireless communication module, the 433 wireless communication module is connected with the MCU main chip circuit, the 433 wireless communication module is used for being connected with external remote control equipment in a wireless mode, and the intelligent remote control equipment comprises a remote controller, a mobile phone or a tablet and the like.
Further, the MCU main chip circuit comprises an MCU chip, and the model of the MCU chip is FT60E121.
Further, the electric switch control circuit is a relay control circuit or a controllable silicon control circuit or a triode or a MOS tube. The relay control circuit is connected with the MCU main chip circuit and connected with the first output end and the second output end of the power input terminal P1.
And a third pin of the MCU main chip circuit is connected with the output end of the relay, and a second pin of the MCU main chip circuit is connected 433 with the wireless communication module.
Further, the relay control circuit comprises a relay K2, a diode D3 and a triode Q1, wherein a third pin of the relay K2 is connected with a first output end of the power input terminal P1, a third pin of the relay K2 is connected with a second pin of the power output terminal P2, a first pin of the power output terminal P2 is connected with a second output end of the power input terminal P1, and a third pin of the relay K2 is connected with +5V; the anode of the diode D3 is connected with the first pin of the relay K2, and the cathode of the diode D3 is connected with the second pin of the relay K2; the collector of the triode Q1 is connected with the second pin of the relay K2, the collector emitter of the triode Q1 is grounded, the base of the triode Q1 is connected with the resistor R8 and then grounded, and the collector base of the triode Q1 is connected with the resistor R9 and then connected with the MCU main chip circuit.
Further, the model of the MOS tube Q2 is 3400MOS tube.
Further, the ac optocoupler U4 model is EL354.
Further, the type of the relay K2 is Y3F-SS-105DM.
Further, fig. 4 is a schematic diagram of an indicator light circuit according to an embodiment of the present utility model, where the indicator light circuit is connected to the MCU main chip circuit, the indicator light circuit is connected to the fourth pin of the MCU main chip circuit, the indicator light circuit includes an indicator light D1 and a resistor R2, the negative electrode of the indicator light D1 is connected to the fourth pin of the MCU main chip circuit, the positive electrode of the indicator light D1 is connected to one end of the resistor R2, and the other end of the resistor R2 is connected to a +5v power supply.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A single live wire intelligence switch control circuit, characterized by, include: the double-control switch K1, the power input terminal P1, the power output terminal P2, the electrical appliance switch control circuit, the switch detection circuit and the MCU main chip circuit;
the input end of the double-control switch K1 is connected with the live wire, the output end of the double-control switch K1 is connected with the first input end of the power input terminal P1, and the zero line is connected with the second input end of the power input terminal P1;
a power input terminal P1 for connecting to a power source;
a power output terminal P2 for connecting an electric appliance;
the electric appliance switch control circuit is used for controlling the current power on or power off of an electric appliance on the electric power output terminal P2, is connected with the output end of the electric power input terminal P1 and the output end of the electric power output terminal P2, and is connected with the MCU main chip circuit;
the input end of the switch detection circuit is connected with the first output end and the second output end of the power input terminal P1, and the action of the double-control switch K1 is converted into a signal which can be identified by the MCU main chip circuit and is used for detecting whether a user presses the double-control switch K1;
and the input end of the MCU main chip circuit is connected with the output end of the switch detection circuit and is used for receiving the signal of the switch detection circuit.
2. The single fire wire intelligent switch control circuit of claim 1, wherein: the relay switch control circuit is a relay control circuit or a controllable silicon control circuit or a triode or a MOS tube.
3. The single fire wire intelligent switch control circuit according to claim 1 or 2, wherein:
the switch detection circuit comprises an alternating current optocoupler U4, a resistor R16, a resistor R15, a capacitor C2, a MOS tube Q2, a resistor R2 and a resistor R3; the second pin of the alternating current optical coupler U4 is connected with the second output end of the power input terminal P1, the first pin of the alternating current optical coupler U4 is connected with the first output end of the power input terminal P1 after being connected with the resistor R16, the third pin of the alternating current optical coupler U4 is connected with the resistor R15 and then grounded, the third pin of the alternating current optical coupler U4 is connected with the capacitor C2 and then grounded, and the fourth pin of the alternating current optical coupler U4 is connected with the +5V power output end;
the third pin of the alternating current optocoupler U4 is connected with the G pole of the MOS tube Q2, the D pole of the MOS tube Q2 is grounded, the S pole of the MOS tube Q2 is connected with the +5V power supply output end after passing through the resistor R2, and the S pole of the MOS tube Q2 is connected with the MCU main chip circuit after passing through the resistor R3.
4. The single fire wire intelligent switch control circuit of claim 2, wherein: the relay control circuit comprises a relay K2, a diode D3 and a triode Q1, wherein a third pin of the relay K2 is connected with a first output end of the power input terminal P1, a third pin of the relay K2 is connected with a second pin of the power output terminal P2, a first pin of the power output terminal P2 is connected with a second output end of the power input terminal P1, and a third pin of the relay K2 is connected with +5V; the anode of the diode D3 is connected with the first pin of the relay K2, and the cathode of the diode D3 is connected with the second pin of the relay K2; the collector of the triode Q1 is connected with the second pin of the relay K2, the collector emitter of the triode Q1 is grounded, the base of the triode Q1 is connected with the resistor R8 and then grounded, and the collector base of the triode Q1 is connected with the resistor R9 and then connected with the MCU main chip circuit.
5. A single fire wire intelligent switch control circuit according to claim 3, wherein: the remote control device further comprises a 433 wireless communication module, wherein the 433 wireless communication module is connected with the MCU main chip circuit, and the 433 wireless communication module is used for being connected with external remote control equipment in a wireless mode.
6. A single fire wire intelligent switch control circuit according to claim 3, wherein: the model of the MOS tube Q2 is 3400MOS tube.
7. A single fire wire intelligent switch control circuit according to claim 3, wherein: the MCU main chip circuit comprises an MCU chip, and the model of the MCU chip is FT60E121.
8. A single fire wire intelligent switch control circuit according to claim 3, wherein: the alternating current optocoupler U4 is EL354.
9. The single fire wire intelligent switch control circuit of claim 5, wherein: the type of the relay K2 is Y3F-SS-105DM.
10. A single fire wire intelligent switch control circuit according to claim 3, wherein: the LED display device further comprises an indicator lamp circuit, wherein the indicator lamp circuit is connected with the MCU main chip circuit, the indicator lamp circuit is connected with the MCU main chip circuit and comprises an indicator lamp D1 and a resistor R2, the negative electrode of the indicator lamp D1 is connected with the MCU main chip circuit, the positive electrode of the indicator lamp D1 is connected with one end of the resistor R2, and the other end of the resistor R2 is connected with a +5V power supply.
CN202320126813.XU 2023-01-13 2023-01-13 Single live wire intelligent switch control circuit Active CN218938818U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320126813.XU CN218938818U (en) 2023-01-13 2023-01-13 Single live wire intelligent switch control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320126813.XU CN218938818U (en) 2023-01-13 2023-01-13 Single live wire intelligent switch control circuit

Publications (1)

Publication Number Publication Date
CN218938818U true CN218938818U (en) 2023-04-28

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CN202320126813.XU Active CN218938818U (en) 2023-01-13 2023-01-13 Single live wire intelligent switch control circuit

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CN (1) CN218938818U (en)

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