Single-wire wall-controlled fan lamp control system with chopping and phase cutting functions

Abstract

The utility model discloses a single-wire wall-controlled fan lamp control system with chopping and phase cutting functions, which comprises a wall controller connected with commercial power and used for inputting wall-controlled control signals. The wall controller comprises a phase cutting control signal input circuit used for cutting off the phase of an alternating current part and a chopping control signal input circuit used for chopping off the waveform of the alternating current part, wherein the phase cutting control signal input circuit and the chopping control signal input circuit are sequentially connected in series on a live wire or a zero wire. The output end of the wall controller is connected with a first zero-crossing detection circuit used for detecting a live wire zero-crossing signal and a second zero-crossing detection circuit used for detecting a zero-crossing limit number of a zero wire. The first zero-cross detection circuit and the second zero-cross detection circuit are connected with an MCU control circuit which outputs a fan control signal and an LED lamp control signal according to a detection signal of the first zero-cross detection circuit and a detection signal of the second zero-cross detection circuit. A wall control signal of the fan or the lamp is sent to the MCU control circuit by cutting off an alternating current phase and cutting off an alternating current waveform, and wall control of the fan and the lamp can be achieved through single-wire connection.

Description

[Technical Field]

[0001] This utility model relates to a single-line wall-mounted fan light control system with chopping and phase-cutting functions. [Background Technology]

[0002] Currently, the fan and light wall controllers on the market are diverse, but they generally suffer from inconvenience, limited functionality, and significant limitations. For example, mechanical wall controllers are not durable, prone to sparking, and expensive. Electronic wall controllers, on the other hand, are expensive and cumbersome to manufacture. For instance, a single-wire wall controller connected in series with the fan and light main controller can interfere with the main controller, and it is difficult to control the fan and light separately with a single wire, greatly limiting its application. Furthermore, dual-wire input and dual-wire output wall controllers increase the number of wiring connections, making electrical wiring inconvenient, and are also expensive, resulting in low market utilization. [Utility Model Content]

[0003] This invention overcomes the shortcomings of the prior art and provides a single-line wall-mounted fan light control system with chopping and phase-cutting functions.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A single-wire wall-mounted fan and light control system with chopping and phase-cutting functions is characterized by: a wall controller connected to the mains power supply for inputting wall control signals; the wall controller includes a phase-cutting control signal input circuit connected in series with the live wire or neutral wire for cutting off a portion of the AC current phase and a chopping control signal input circuit for cutting off a portion of the AC current waveform; the output terminal of the wall controller is connected to a first zero-crossing detection circuit for detecting the zero-crossing signal of the live wire and a second zero-crossing detection circuit for detecting the zero-crossing limit of the neutral wire; the first zero-crossing detection circuit and the second zero-crossing detection circuit are connected to an MCU control circuit that outputs fan control signals and LED light control signals based on the detection signals of the first zero-crossing detection circuit and the second zero-crossing detection circuit.

[0006] The single-wire wall-mounted fan light control system with chopping and phase-cutting functions described above is characterized in that: the output terminal of the wall controller is connected to a switching power supply circuit that converts AC power to DC power; the switching power supply circuit is connected to the MCU control circuit for power supply; the switching power supply circuit is connected to a step-down circuit for stepping down the DC power; and the step-down circuit is connected to the first zero-crossing detection circuit, the second zero-crossing detection circuit, and the MCU control circuit for power supply.

[0007] The single-wire wall-mounted fan light control system with chopping and phase-cutting functions described above is characterized in that: the phase-cutting control signal input circuit includes normally closed switches K1 and K2 connected in series on the live wire or neutral wire; a Zener diode ZD1 is connected in parallel to the two normally closed terminals of normally closed switch K1; the negative terminal of Zener diode ZD1 is connected to the normally closed terminal of normally closed switch K1 on the live wire or neutral wire input side; the positive terminal of Zener diode ZD1 is connected to the normally closed terminal of normally closed switch K1 on the live wire or neutral wire output side; a Zener diode ZD2 is connected in parallel to the two normally closed terminals of normally closed switch K2; the positive terminal of Zener diode ZD2 is connected to the normally closed terminal of normally closed switch K2 on the live wire or neutral wire input side; and the negative terminal of Zener diode ZD2 is connected to the normally closed terminal of normally closed switch K2 on the live wire or neutral wire output side.

[0008] The single-wire wall-mounted fan light control system with chopping and phase-cutting functions described above is characterized in that: the chopping control signal input circuit includes normally closed switches K3 and K4 connected in series with the live wire or neutral wire connected to the phase-cutting control signal input circuit; diode D1 is connected in parallel to the two normally closed terminals of normally closed switch K3; the negative terminal of diode D1 is connected to the normally closed terminal of normally closed switch K3 on the live wire or neutral wire input side; the positive terminal of diode D1 is connected to the normally closed terminal of normally closed switch K3 on the live wire or neutral wire output side; diode D2 is connected in parallel to the two normally closed terminals of normally closed switch K4; the positive terminal of diode D2 is connected to the normally closed terminal of normally closed switch K4 on the live wire or neutral wire input side; the negative terminal of diode D2 is connected to the normally closed terminal of normally closed switch K4 on the live wire or neutral wire output side.

[0009] The single-wire wall-mounted fan light control system with chopping and phase-cutting functions described above is characterized in that: the first zero-crossing detection circuit includes an optocoupler U9, pin 1 of optocoupler U9 is connected to the switching power supply circuit through resistor R35, pin 2 of optocoupler U9 is connected to the positive terminal of diode D6, the negative terminal of diode D6 is connected to the switching power supply circuit through resistor R78, pin 3 of optocoupler U9 is grounded, pin 4 of optocoupler U9 is connected to one end of resistor R36, one end of capacitor C10, one end of capacitor C9, and one end of resistor R77 respectively, the other end of resistor R36 is connected to the step-down circuit, the other ends of capacitor C10 and capacitor C9 are grounded respectively, the other end of resistor R77 is connected to one end of capacitor C8 and the MCU control circuit respectively, and the other end of capacitor C8 is grounded.

[0010] The single-wire wall-mounted fan light control system with chopping and phase-cutting functions described above is characterized in that: the second zero-crossing detection circuit includes an optocoupler U8, pin 1 of optocoupler U8 is connected to the switching power supply circuit through resistor R32, pin 2 of optocoupler U8 is connected to the positive terminal of diode D5, the negative terminal of diode D5 is connected to the switching power supply circuit through resistor R79, pin 3 of optocoupler U8 is grounded, pin 4 of optocoupler U8 is connected to one end of resistor R31, one end of capacitor C7, one end of capacitor C6, and one end of resistor R33 respectively, the other end of resistor R31 is connected to the step-down circuit, the other ends of capacitor C7 and capacitor C6 are grounded respectively, the other end of resistor R33 is connected to one end of capacitor C5 and the MCU control circuit respectively, and the other end of capacitor C5 is grounded.

[0011] The single-wire wall-mounted fan and light control system with chopping and phase-cutting functions as described above is characterized in that: the MCU control circuit is connected to a fan drive circuit for driving the fan and an LED drive circuit for driving the LED light, and the switching power supply circuit is connected to the fan drive circuit and the LED drive circuit respectively for power supply.

[0012] The single-wire wall-mounted fan light control system with chopping and phase-cutting functions described above is characterized in that: the MCU control circuit is connected to an RF receiving circuit for receiving wireless remote control signals, and the step-down circuit is connected to the RF receiving circuit for power supply; the MCU control circuit is connected to a WIFI communication circuit for receiving wireless remote control signals, and the step-down circuit is connected to the WIFI communication circuit for power supply.

[0013] The single-wire wall-mounted fan light control system with chopping and phase-cutting functions described above is characterized in that: the MCU control circuit is connected to a buzzer circuit for sound prompts and a programming circuit for programming, and the step-down circuit is connected to the buzzer circuit.

[0014] The single-wire wall-mounted fan light control system with chopping and phase-cutting functions described above is characterized in that: the MCU control circuit includes a control chip U4, pin 1 of the control chip U4 is grounded, pins 2-3, pin 7, pins 11-12, pins 16-17 and pins 27-32 of the control chip U4 are respectively connected to the fan drive circuit, pin 4 of the control chip U4 is respectively connected to one end of resistor R47 and one end of capacitor C25, pin 5 of the control chip U4 is grounded, and pin 6 of the control chip U4 is respectively connected to one end of capacitor C20, one end of capacitor C19, the other end of resistor R47 and one end of resistor R41. One end of resistor R48 is connected to the ground, and the other ends of capacitors C20, C19, and C25 are grounded respectively. The other end of resistor R41 is connected to the step-down circuit. The other end of resistor R48 is connected to the positive terminal of indicator light LD1, and the other end of indicator light LD1 is grounded. Pins 9-10 of control chip U4 are connected to the LED driver circuit. Pin 13 of control chip U4 is connected to the first zero-crossing detection circuit. Pin 14 of control chip U4 is connected to pin 4 of connection terminal CN. Pin 15 of control chip U4 is connected to pin 6 of connection terminal CN. Pins 1-2 of terminal CN are connected to the step-down circuit. Connections: Pins 3 and 5 of terminal CN are connected to the WIFI communication circuit and the programming circuit, respectively; pin 8 of terminal CN is grounded; pin 9 of terminal CN is connected to the RF receiving circuit and the WIFI communication circuit, respectively; pin 18 of control chip U4 is connected to one end of capacitor C26, one end of resistor R46, and one end of resistor R49, respectively; the other end of capacitor C26 and the other end of resistor R49 are grounded; the other end of resistor R46 is connected to the fan drive circuit; pin 19 of control chip U4 is connected to the second zero-crossing detection circuit; pin 20 of control chip U4 is connected to the RF receiving circuit, controlling... Pin 21 of chip U4 is connected to pin 3 of connection terminal CN2. Pin 22 of control chip U4 is connected to pin 5 of connection terminal CN2 and the buzzer circuit. Pin 24 of control chip U4 is grounded through capacitor C18. Pin 25 of control chip U4 is connected to one end of resistor R34 and one end of capacitor C17. The other end of capacitor C17 is grounded. The other end of resistor R34 is connected to pin 26 of control chip U4 and pin 1 of buck chip U2. Pin 3 of buck chip U2 is connected to the switching power supply circuit and one end of capacitor C14. The other end of capacitor C14 and pin 2 of buck chip U2 are grounded.

[0015] The beneficial effects of this utility model are:

[0016] This utility model wall controller is equipped with a phase-cutting control signal input circuit for cutting off a portion of the AC power phase and a chopping control signal input circuit for chopping off a portion of the AC power waveform. By cutting off the AC power phase and chopping off the AC power waveform, it sends wall control signals for the fan or light to the MCU control circuit. The wall control of the fan and light can be realized through a single-wire connection. It has a simple structure, is easy to wire, has low cost, low interference, and can accurately control the operation of the fan and light. [Image Description]

[0017] Figure 1 This is a schematic diagram of the present invention;

[0018] Figure 2 This is the circuit diagram of the wall controller of this utility model;

[0019] Figure 3 This is the circuit diagram of the fan light of this utility model;

[0020] Figure 4 This is a schematic diagram of the output waveform of the wall controller after each button is triggered according to this utility model;

[0021] Figure 5 This is a schematic diagram of the first zero-crossing detection circuit and the zero-crossing signal detected by the first zero-crossing detection circuit after each button is triggered in this utility model. [Detailed Implementation]

[0022] The technical solutions in the embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly. Furthermore, descriptions involving "preferred," "second-best," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "preferred" or "second-best" may explicitly or implicitly include at least one of those features.

[0024] like Figure 1-5As shown, a single-wire wall-mounted fan and light control system with chopping and phase-cutting functions includes a wall controller 1 connected to the mains power supply for inputting wall control signals. The wall controller 1 includes a phase-cutting control signal input circuit 101 connected in series with the live wire or neutral wire for cutting off a portion of the AC current phase, and a chopping control signal input circuit 102 for cutting off a portion of the AC current waveform. The output of the wall controller 1 is connected to a first zero-crossing detection circuit 2 for detecting the live wire zero-crossing signal and a second zero-crossing detection circuit 3 for detecting the neutral wire zero-crossing limit. The first zero-crossing detection circuit 2 and the second zero-crossing detection circuit 3 are connected to an MCU control circuit 4 that outputs fan control signals and LED light control signals based on the signals detected by the first zero-crossing detection circuit 2 and the second zero-crossing detection circuit 3. Figure 1 As shown, in this case, the first zero-crossing detection circuit 2 and the second zero-crossing detection circuit 3 are connected in series on the mains live wire.

[0025] like Figure 2 As shown, the phase-cutting control signal input circuit 101 includes normally closed switches K1 and K2 connected in series on the live wire or neutral wire. A Zener diode ZD1 is connected in parallel to the two normally closed terminals of normally closed switch K1. The negative terminal of Zener diode ZD1 is connected to the normally closed terminal of normally closed switch K1 on the live wire or neutral wire input side, and the positive terminal of Zener diode ZD1 is connected to the normally closed terminal of normally closed switch K1 on the live wire or neutral wire output side. A Zener diode ZD2 is connected in parallel to the two normally closed terminals of normally closed switch K2. The positive terminal of Zener diode ZD2 is connected to the normally closed terminal of normally closed switch K2 on the live wire or neutral wire input side, and the negative terminal of Zener diode ZD2 is connected to the normally closed terminal of normally closed switch K2 on the live wire or neutral wire output side. On the end; the chopper control signal input circuit 102 includes normally closed switches K3 and K4 connected in series with the phase-cutting control signal input circuit 101 connected to the live wire or neutral wire. A diode D1 is connected in parallel to the two normally closed terminals of normally closed switch K3. The negative terminal of diode D1 is connected to the normally closed terminal of normally closed switch K3 on the live wire or neutral wire input side, and the positive terminal of diode D1 is connected to the normally closed terminal of normally closed switch K3 on the live wire or neutral wire output side. A diode D2 is connected in parallel to the two normally closed terminals of normally closed switch K4. The positive terminal of diode D2 is connected to the normally closed terminal of normally closed switch K4 on the live wire or neutral wire input side, and the negative terminal of diode D2 is connected to the normally closed terminal of normally closed switch K4 on the live wire or neutral wire output side.

[0026] like Figure 2 and Figure 4As shown, in the phase-cutting control signal input circuit 101, when the normally closed switch K1 is pressed, approximately 1ms of phase is cut on both sides of the lower half of the AC waveform (the exact amount of phase cutting varies depending on the size of the Zener diode connected in parallel with K1); when the normally closed switch K2 is pressed, approximately 1ms of phase is cut on both sides of the upper half of the AC waveform (the exact amount of phase cutting varies depending on the size of the Zener diode connected in parallel with K2), thus realizing the function of wall-controlled phase-cutting control signal input. In the chopper control signal input circuit 102, when the normally closed switch K3 is pressed, the lower half of the AC waveform is cut; when the normally closed switch K4 is pressed, the upper half of the AC waveform is cut, thus realizing the function of wall-controlled chopper control signal input.

[0027] like Figure 4-5 As shown, when the normally closed switch K1 of the phase-cutting control signal input circuit 101 of the wall controller 1 is pressed, the AC waveform output by the wall controller 1 is a waveform with approximately 1ms phase cut on both sides of the lower half of the AC waveform. This phase cut value depends on the size of the Zener diode ZD1 connected in parallel across the normally closed switch K1, and the upper half of the AC waveform remains unchanged. At this time, the live wire zero-crossing signal detected by the first zero-crossing detection circuit 2 becomes narrower than the high potential portion of the square wave when no button is pressed by approximately 1ms, and is sent to the MCU control circuit 4. The narrowing value of this high potential depends on the size of the Zener diode ZD1 connected in parallel across the normally closed switch K1. At the same time, the neutral wire zero-crossing signal detected by the second zero-crossing detection circuit 3 becomes wider than the high potential portion of the square wave when no button is pressed by approximately 1ms, and is sent to the MCU control circuit 4. The widening value of this high potential depends on the size of the Zener diode ZD1 connected in parallel across the normally closed switch K1. Subsequently, the MCU control circuit 4 controls the fan or light to operate based on the detected live wire zero-crossing signal and neutral wire zero-crossing signal. In this case, when the normally closed switch K1 of the wall controller 1 is pressed, the MCU control circuit 4 controls the fan to increase its speed based on the detected live wire zero-crossing signal and neutral wire zero-crossing signal of the phase-cutting waveform.

[0028] like Figure 4-5As shown, when the normally closed switch K2 of the phase-cutting control signal input circuit 101 of the wall controller 1 is pressed, the AC waveform output by the wall controller 1 is a waveform with approximately 1ms phase cut on both sides of the upper half of the AC waveform. This phase cut value depends on the size of the Zener diode ZD2 connected in parallel across the normally closed switch K2, and the lower half of the AC waveform remains unchanged. At this time, the live wire zero-crossing signal detected by the first zero-crossing detection circuit 2 becomes wider by approximately 1ms than the high-potential portion of the square wave when no button is pressed, and is sent to the MCU control circuit 4. The narrowing value of this high potential depends on the size of the Zener diode ZD2 connected in parallel across the normally closed switch K2; at the same time, the neutral wire zero-crossing signal detected by the second zero-crossing detection circuit 3 becomes narrower by approximately 1ms than the high-potential portion of the square wave when no button is pressed, and is sent to the MCU control circuit 4. The widening value of this high potential depends on the size of the Zener diode ZD2 connected in parallel across the normally closed switch K2. Subsequently, the MCU control circuit 4 controls the fan or light to operate based on the detected live wire zero-crossing signal and neutral wire zero-crossing signal. In this case, when the normally closed switch K2 of the wall controller 1 is pressed, the MCU control circuit 4 controls the fan to reduce its speed based on the detected live wire zero-crossing signal and neutral wire zero-crossing signal of the phase-cutting waveform.

[0029] like Figure 4-5 As shown, when the normally closed switch K3 of the chopper control signal input circuit 102 of the wall controller 1 is pressed, the lower half of the AC waveform output by the wall controller is cut off. At this time, the live wire zero-crossing signal detected by the first zero-crossing detection circuit 2 is a DC high level of 3.3V, while the neutral wire zero-crossing signal detected by the second zero-crossing detection circuit 3 is a low level of 0V. Subsequently, the MCU control circuit 4 controls the fan or light to work according to the detected live wire zero-crossing signal and neutral wire zero-crossing signal. In this case, when the normally closed switch K3 of the wall controller 1 is pressed, the MCU control circuit 4 controls the load lamp to brighten upwards according to the live wire zero-crossing signal and neutral wire zero-crossing signal detected by the chopper waveform.

[0030] like Figure 4-5 As shown, when the normally closed switch K4 of the chopper control signal input circuit 102 of the wall controller 1 is pressed, the upper half of the AC waveform output by the wall controller is cut off. At this time, the live wire zero-crossing signal detected by the first zero-crossing detection circuit 2 is a low level of 0V, while the neutral wire zero-crossing signal detected by the second zero-crossing detection circuit 3 is a high level of 3.3V DC. Subsequently, the MCU control circuit 4 controls the fan or light to work according to the detected live wire zero-crossing signal and neutral wire zero-crossing signal. In this case, when the normally closed switch K3 of the wall controller 1 is pressed, the MCU control circuit 4 controls the load light to dim downwards according to the live wire zero-crossing signal and neutral wire zero-crossing signal detected by the chopper waveform.

[0031] like Figure 5As shown, when none of the normally closed switches K1-K4 of the wall controller 1 are pressed, the AC waveform output by the wall controller is a sine wave. The live wire zero-crossing detection signal detected by the first zero-crossing detection circuit 2 and the neutral wire zero-crossing detection signal detected by the second zero-crossing detection circuit 3 are both normal square wave signals, and the MCU control circuit 4 does not output a control signal. In this case, the different waveform signals output by triggering different normally closed switch buttons can be set according to market or user needs to determine the control signal output by the MCU control circuit 4.

[0032] like Figure 1-3 As shown, the first zero-crossing detection circuit 2 includes an optocoupler U9. Pin 1 of optocoupler U9 is connected to the switching power supply circuit 5 through resistor R35. Pin 2 of optocoupler U9 is connected to the positive terminal of diode D6. The negative terminal of diode D6 is connected to the switching power supply circuit 5 through resistor R78. Pin 3 of optocoupler U9 is grounded. Pin 4 of optocoupler U9 is connected to one end of resistor R36, one end of capacitor C10, one end of capacitor C9, and one end of resistor R77. The other end of resistor R36 is connected to the step-down circuit 6. The other ends of capacitor C10 and C9 are grounded. The other end of resistor R77 is connected to one end of capacitor C8 and the MCU control circuit 4. The other end of capacitor C8 is grounded. During detection, the optocoupler U9 of the first zero-crossing detection circuit 2 detects the AC waveform input to the live wire of the wall controller 1 and converts it into a waveform as shown in the diagram. Figure 5 The image shows the live wire zero-crossing detection signal corresponding to the normally closed switch button.

[0033] like Figure 1-3 As shown, the second zero-crossing detection circuit 3 includes an optocoupler U8. Pin 1 of optocoupler U8 is connected to the switching power supply circuit 5 through resistor R32. Pin 2 of optocoupler U8 is connected to the positive terminal of diode D5. The negative terminal of diode D5 is connected to the switching power supply circuit 5 through resistor R79. Pin 3 of optocoupler U8 is grounded. Pin 4 of optocoupler U8 is connected to one end of resistor R31, one end of capacitor C7, one end of capacitor C6, and one end of resistor R33. The other end of resistor R31 is connected to the step-down circuit 6. The other ends of capacitors C7 and C6 are grounded. The other end of resistor R33 is connected to one end of capacitor C5 and the MCU control circuit 4. The other end of capacitor C5 is grounded. During detection, the optocoupler U8 of the second zero-crossing detection circuit 3 detects the AC waveform of the neutral input of the wall controller 1 and converts it into a waveform as shown in the figure. Figure 5 The figure shows the zero-crossing detection signal for the neutral wire of the normally closed switch button.

[0034] like Figure 1 and Figure 3As shown, the output terminal of the wall controller 1 is connected to a switching power supply circuit 5 that converts AC power to DC power. The switching power supply circuit 5 is connected to the MCU control circuit 4 for power supply. The switching power supply circuit 5 is also connected to a step-down circuit 6 for stepping down the DC power. The step-down circuit 6 is connected to the first zero-crossing detection circuit 2, the second zero-crossing detection circuit 3, and the MCU control circuit 4 for power supply, respectively. In use, the AC live wire of the wall controller 1 inputs power to the switching power supply circuit 5. The switching power supply circuit 5 converts the AC power to DC power and then supplies power to the relevant circuits. At the same time, the step-down circuit 6 converts the 24V DC power to 3.3V DC power and then supplies power to the first zero-crossing detection circuit 2 and the second zero-crossing detection circuit 3, enabling them to operate.

[0035] like Figure 1 and Figure 3 As shown, the MCU control circuit 4 is connected to a fan drive circuit 7 for driving the fan and an LED drive circuit 8 for driving the LED lights. The switching power supply circuit 5 is connected to both the fan drive circuit 7 and the LED drive circuit 8 for power supply. After the MCU control circuit 4 receives zero-crossing detection signals from the first zero-crossing detection circuit 2 and the second zero-crossing detection circuit 3, it controls the fan to operate via the fan drive circuit 7 or controls the LED lights via the LED drive circuit 8 based on these signals. Specifically, the motor drive chips M4-M6 in the fan drive circuit 7 drive the motor to achieve speed adjustment, timing, or forward / reverse rotation; the optocouplers U3 and U7 in the LED drive circuit 8 control the LED lights to achieve switching, dimming, or color adjustment.

[0036] like Figure 1 and Figure 3 As shown, the MCU control circuit 4 is connected to an RF receiving circuit 9 for receiving wireless remote control signals, and the step-down circuit 6 is connected to the RF receiving circuit 9 for power supply; the MCU control circuit 4 is also connected to a WIFI communication circuit 10 for receiving wireless remote control signals, and the step-down circuit 6 is connected to the WIFI communication circuit 10 for power supply. This design allows for different wireless remote control functions to be configured according to different needs.

[0037] like Figure 1 and Figure 3 As shown, the MCU control circuit 4 is connected to a buzzer circuit 11 for sound prompts and a programming circuit 12 for programming. The step-down circuit 6 is connected to the buzzer circuit 11. When the fan light executes the corresponding command, a sound prompt is given through the buzzer circuit 11.

[0038] like Figure 3As shown, the MCU control circuit 4 includes a control chip U4. The live wire zero-crossing detection signal detected by the first zero-crossing detection circuit 2 is input through pin 13ACZ_L of the control chip U4, and the neutral wire zero-crossing detection signal detected by the second zero-crossing detection circuit 3 is input through pin 19ACZ_N of the chip U4. The control chip U4 controls the fan drive circuit 7 or the LED light drive circuit 8 to work through the corresponding pins according to the received zero-crossing detection signals, thereby controlling the fan or the light to work.

[0039] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A single-wire wall control fan light control system with chopping and phase-cut functions, characterized in that: The wall controller (1) connected with the mains for inputting wall control control signal, the wall controller (1) includes the phase cut control signal input circuit (101) and the chopper control signal input circuit (102) connected in series on the live line or the zero line for cutting off the phase of the alternating current, the wall controller (1) is connected with the first zero-crossing detection circuit (2) for detecting the zero-crossing signal of the live line, the second zero-crossing detection circuit (3) for detecting the zero-crossing signal of the zero line, the first zero-crossing detection circuit (2) and the second zero-crossing detection circuit (3) are connected with the MCU control circuit (4) for outputting the fan control signal and the LED lamp control signal according to the detection signal of the first zero-crossing detection circuit (2) and the second zero-crossing detection circuit (3).

2. The single-wire wall control fan and light control system having the functions of chopper and dimmer according to claim 1, characterized in that: The wall controller (1) is connected with the switching power supply circuit (5) for converting the alternating current into direct current, the switching power supply circuit (5) is connected with the MCU control circuit (4) for power supply, the switching power supply circuit (5) is connected with the voltage reduction circuit (6) for reducing the direct current, and the voltage reduction circuit (6) is connected with the first zero-crossing detection circuit (2), the second zero-crossing detection circuit (3) and the MCU control circuit (4) for power supply.

3. The single-wire wall control fan and light control system having the functions of chopper and dimmer according to claim 1, characterized in that: The phase cut control signal input circuit (101) includes the normally closed switch K1 and the normally closed switch K2 connected in series on the live line or the zero line, the normally closed connection ends of the normally closed switch K1 are connected in parallel with the zener diode ZD1, the negative electrode end of the zener diode ZD1 is connected to the normally closed connection end of the normally closed switch K1 on the input side of the live line or the zero line, the positive electrode end of the zener diode ZD1 is connected to the normally closed connection end of the normally closed switch K1 on the output side of the live line or the zero line, the normally closed connection ends of the normally closed switch K2 are connected in parallel with the zener diode ZD2, the positive electrode end of the zener diode ZD2 is connected to the normally closed connection end of the normally closed switch K2 on the input side of the live line or the zero line, and the negative electrode end of the zener diode ZD2 is connected to the normally closed connection end of the normally closed switch K2 on the output side of the live line or the zero line.

4. The single-wire wall control fan and light control system having the functions of chopper and dimmer according to claim 3, characterized in that: The chopper control signal input circuit (102) includes the normally closed switch K3 and the normally closed switch K4 connected in series on the live line or the zero line connected with the phase cut control signal input circuit (101), the normally closed connection ends of the normally closed switch K3 are connected in parallel with the diode D1, the negative electrode end of the diode D1 is connected to the normally closed connection end of the normally closed switch K3 on the input side of the live line or the zero line, the positive electrode end of the diode D1 is connected to the normally closed connection end of the normally closed switch K3 on the output side of the live line or the zero line, the normally closed connection ends of the normally closed switch K4 are connected in parallel with the diode D2, the positive electrode end of the diode D2 is connected to the normally closed connection end of the normally closed switch K4 on the input side of the live line or the zero line, and the negative electrode end of the diode D2 is connected to the normally closed connection end of the normally closed switch K4 on the output side of the live line or the zero line.

5. The single-wire wall-control fan and light control system with chopper and dimmer functions according to claim 2, characterized in that: The first zero-crossing detection circuit (2) comprises a photoelectric coupler U9, the pin 1 of the photoelectric coupler U9 is connected with the switching power supply circuit (5) through a resistor R35, the pin 2 of the photoelectric coupler U9 is connected with the positive terminal of a diode D6, the negative terminal of the diode D6 is connected with the switching power supply circuit (5) through a resistor R78, the pin 3 of the photoelectric coupler U9 is grounded, the pin 4 of the photoelectric coupler U9 is connected with one end of a resistor R36, one end of a capacitor C10, one end of a capacitor C9 and one end of a resistor R77 respectively, the other end of the resistor R36 is connected with the voltage reduction circuit (6), the other end of the capacitor C10 and the other end of the capacitor C9 are grounded respectively, the other end of the resistor R77 is connected with one end of a capacitor C8 and the MCU control circuit (4) respectively, the other end of the capacitor C8 is grounded.

6. The single-wire wall-control fan and light control system having the functions of chopper and dimmer according to claim 2, characterized in that: The second zero-crossing detection circuit (3) comprises a photoelectric coupler U8, the pin 1 of the photoelectric coupler U8 is connected with the switching power supply circuit (5) through a resistor R32, the pin 2 of the photoelectric coupler U8 is connected with the positive terminal of a diode D5, the negative terminal of the diode D5 is connected with the switching power supply circuit (5) through a resistor R79, the pin 3 of the photoelectric coupler U8 is grounded, the pin 4 of the photoelectric coupler U8 is connected with one end of a resistor R31, one end of a capacitor C7, one end of a capacitor C6 and one end of a resistor R33 respectively, the other end of the resistor R31 is connected with the voltage reduction circuit (6), the other end of the capacitor C7 and the other end of the capacitor C6 are grounded respectively, the other end of the resistor R33 is connected with one end of a capacitor C5 and the MCU control circuit (4) respectively, the other end of the capacitor C5 is grounded.

7. The single-wire wall-control fan and light control system having the functions of chopper and dimmer according to claim 2, characterized in that: The MCU control circuit (4) is connected with a fan driving circuit (7) for driving the fan to work and an LED lamp driving circuit (8) for driving the LED lamp to work, and the switching power supply circuit (5) is connected with the fan driving circuit (7) and the LED lamp driving circuit (8) for power supply.

8. The single-wire wall-control fan and light control system having the functions of chopper and dimmer according to claim 7, characterized in that: The MCU control circuit (4) is connected with an RF receiving circuit (9) for receiving wireless remote control signals, and the voltage reduction circuit (6) is connected with the RF receiving circuit (9) for power supply; the MCU control circuit (4) is connected with a WIFI communication circuit (10) for receiving wireless remote control signals, and the voltage reduction circuit (6) is connected with the WIFI communication circuit (10) for power supply.

9. The single-wire wall-control fan and light control system having the functions of chopper and dimmer according to claim 8, characterized in that: The MCU control circuit (4) is connected with a buzzer circuit (11) for sound prompt and a burning circuit (12) for burning program, and the voltage reduction circuit (6) is connected with the buzzer circuit (11).

10. The single-wire wall-control fan and light control system having the functions of chopper and dimmer according to claim 9, characterized in that: The MCU control circuit (4) comprises a control chip U4, a pin 1 of the control chip U4 is grounded, pins 2-3, pin 7, pins 11-12, pins 16-17 and pins 27-32 of the control chip U4 are connected with the fan driving circuit (7) respectively, a pin 4 of the control chip U4 is connected with one end of a resistor R47 and one end of a capacitor C25 respectively, a pin 5 of the control chip U4 is grounded, a pin 6 of the control chip U4 is connected with one end of a capacitor C20, one end of a capacitor C19, the other end of the resistor R47, one end of a resistor R41 and one end of a resistor R48 respectively, the other end of the capacitor C20, the other end of the capacitor C19 and the other end of the capacitor C25 are grounded respectively, the other end of the resistor R41 is connected with the voltage reduction circuit (6), the other end of the resistor R48 is connected with a positive electrode end of a prompt lamp LD1, the other end of the prompt lamp LD1 is grounded, pins 9-10 of the control chip U4 are connected with the LED lamp driving circuit (8) respectively, a pin 13 of the control chip U4 is connected with the first zero-crossing detection circuit (2), a pin 14 of the control chip U4 is connected with a pin 4 of a connection terminal CN, a pin 15 of the control chip U4 is connected with a pin 6 of the connection terminal CN, pins 1-2 of the connection terminal CN are connected with the voltage reduction circuit (6) respectively, a pin 3 and a pin 5 of the connection terminal CN are connected with the WIFI communication circuit (10) and the burning circuit (12) respectively, a pin 8 of the connection terminal CN is grounded, a pin 9 of the connection terminal CN is connected with the RF receiving circuit (9) and the WIFI communication circuit (10) respectively, a pin 18 of the control chip U4 is connected with one end of a capacitor C26, one end of a resistor R46 and one end of a resistor R49 respectively, the other end of the capacitor C26 and the other end of the resistor R49 are grounded respectively, the other end of the resistor R46 is connected with the fan driving circuit (7), a pin 19 of the control chip U4 is connected with the second zero-crossing detection circuit (3), a pin 20 of the control chip U4 is connected with the RF receiving circuit (9), a pin 21 of the control chip U4 is connected with a pin 3 of a connection terminal CN2, a pin 22 of the control chip U4 is connected with a pin 5 of the connection terminal CN2 and the buzzer circuit (11) respectively, a pin 24 of the control chip U4 is grounded through a capacitor C18, a pin 25 of the control chip U4 is connected with one end of a resistor R34 and one end of a capacitor C17 respectively, the other end of the capacitor C17 is grounded, the other end of the resistor R34 is connected with a pin 26 of the control chip U4 and a pin 1 of a voltage reduction chip U2 respectively, a pin 3 of the voltage reduction chip U2 is connected with the switching power supply circuit (5) and one end of a capacitor C14 respectively, the other end of the capacitor C14 and a pin 2 of the voltage reduction chip U2 are grounded respectively.

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