A fan light control circuit
Patent Information
- Application Number
- CN202520998899.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-05-20
AI Technical Summary
[0002]由直流电机驱动的吊扇一般带有RF接收功能或拉掣开关，通过拉掣开关或RF遥控器来控制吊扇的运行，有时会因遥控器丢失找不到，或拉掣开关高度不合适，出现不方便使用的情况，因此部分客户端开始采用增加墙控面板开关来控制吊扇的运行
[0005] The fan and light control circuit according to this utility model embodiment has at least the following beneficial effects: the wall control switch K1, the wall control module, and the carrier modulation module are respectively installed on the wall, while the main control module, the drive module, and the load are generally installed on the ceiling. Since the L line supplies power to the load through the wall control switch and the carrier modulation module, only a high-voltage L line needs to be laid on the wall. The wall control module outputs a carrier signal, which is then modulated into a control signal by the carrier modulation module and output to the main control module. After processing and parsing, the main control module obtains the data to be executed and issues corresponding instructions (such as controlling the fan rotation, forward and reverse rotation, speed, and the light's on/off command) to the drive module, enabling the load (fan and/or light) to work normally. That is, in addition to supplying power, the L line and N line can also carry the carrier signal. It is not necessary to lay L lines on both the ceiling and the wall; only a high-voltage L line needs to be laid on the wall, avoiding the need to re-lay high-voltage power lines, effectively improving the installation process, saving costs, and facilitating application.
Smart Images
Figure CN224653666U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fan control technology, and in particular to a fan light control circuit. Background Technology
[0002] Ceiling fans driven by DC motors typically have RF receivers or pull switches, which are used to control the fan's operation. However, this can be inconvenient due to lost remotes or improperly positioned pull switches. Therefore, some customers have started using wall-mounted control panels. However, wall-mounted control is limited by technology; the L (live) and N (neutral) lines need to supply power to the ceiling-mounted load and the wall-mounted control panel, respectively. This requires running high-voltage L lines on both the ceiling and walls, which is inconvenient for users. Utility Model Content
[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art and to provide a fan light control circuit that is easy to implement wall control.
[0004] The fan light control circuit according to an embodiment of the present invention includes a wall control switch K1, a wall control module, a carrier modulation module, a main control module, and a drive module. The mains power L is electrically connected to the L-line input terminal of the carrier modulation module and the load power supply via the wall control switch K1. The L-line output terminal of the carrier modulation module is electrically connected to the wall control power supply. The wall control module inputs a carrier signal to the carrier modulation module. The carrier modulation module can modulate the carrier signal into a control signal and output it to the main control module. The main control module controls the drive module to work to drive the load according to the control signal.
[0005] The fan and light control circuit according to this utility model embodiment has at least the following beneficial effects: the wall control switch K1, the wall control module, and the carrier modulation module are respectively installed on the wall, while the main control module, the drive module, and the load are generally installed on the ceiling. Since the L line supplies power to the load through the wall control switch and the carrier modulation module, only a high-voltage L line needs to be laid on the wall. The wall control module outputs a carrier signal, which is then modulated into a control signal by the carrier modulation module and output to the main control module. After processing and parsing, the main control module obtains the data to be executed and issues corresponding instructions (such as controlling the fan rotation, forward and reverse rotation, speed, and the light's on / off command) to the drive module, enabling the load (fan and / or light) to work normally. That is, in addition to supplying power, the L line and N line can also carry the carrier signal. It is not necessary to lay L lines on both the ceiling and the wall; only a high-voltage L line needs to be laid on the wall, avoiding the need to re-lay high-voltage power lines, effectively improving the installation process, saving costs, and facilitating application.
[0006] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0007] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings; Figure 1 This is the control block diagram of the fan light control circuit; Figure 2 This is a partial schematic diagram of the fan light control circuit; Figure 3 This is another part of the schematic diagram of the fan light control circuit. Detailed Implementation
[0008] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0009] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0010] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0011] Reference Figures 1 to 3This utility model discloses a fan light control circuit, including a wall-mounted switch K1, a wall-mounted module 10, a wall-mounted power supply 11, a carrier modulation module 12 mounted on a wall panel, and a main control module 20, a load power supply 21, a drive module 22, and a load mounted on the ceiling. The input terminal of the wall-mounted switch K1 is electrically connected to the mains power line L. The output terminal of the wall-mounted switch K1 is electrically connected to the L-line input terminal of the carrier modulation module 12 and the load power supply 21. The L-line output terminal of the carrier modulation module 12 is electrically connected to the wall-mounted power supply 11. The signal input terminal of the carrier modulation module 12 is electrically connected to the output terminal of the wall-mounted module 10. The signal output terminal of the carrier modulation module 12 is electrically connected to the input terminal of the main control module 20. The output terminal is electrically connected to the drive module 22. The AC power neutral (N) line is electrically connected to the wall control power supply 11 and the load power supply 21, respectively. The wall control power supply 11 is used to convert the AC power into a first operating voltage (generally 5V) to power the wall control module 10 and the carrier modulation module 12. The load power supply 21 is used to convert the AC power into a second operating voltage (generally 5V) and a load operating voltage (such as the motor drive voltage 24V) to power the corresponding main control module 20 and drive module 22. The wall control module 10 is used to output a carrier signal for control. The carrier modulation module 12 is used to modulate the carrier signal into a control signal suitable for the main control module 20. The main control module 20 controls the drive module 22 to work according to the control signal to drive the load. Both the wall control power supply 11 and the load power supply 21 use existing conventional power conversion circuits to convert AC AC power into DC operating voltage. Since the L-line supplies power to the load power supply 21 via the wall-controlled switch and carrier modulation module 12, only a high-voltage L-line needs to be installed on the wall and an N-line on the ceiling. The wall-controlled module 10 outputs a carrier signal, which the carrier modulation module 12 modulates into a control signal and outputs to the main control module 20. After processing and parsing, the main control module 20 obtains the data to be executed and issues corresponding instructions (such as controlling the fan rotation, forward and reverse rotation, speed, and light on / off commands) to the drive module 22, enabling the load (fan and / or light) to operate normally. In other words, in addition to supplying power, the L-line and N-line can also provide carrier signals, eliminating the need to install L-lines on both the ceiling and walls. This avoids the need to re-lay out high-voltage power lines, effectively improving the installation process, saving costs, and facilitating application.
[0012] like Figure 2As shown, the wall control module 10 includes a wall control chip U1 and multiple control buttons electrically connected to the input terminals of the wall control chip U1. The output terminal of the wall control chip U1 can output a carrier signal. The carrier modulation module 12 includes a thyristor TR1, a fuse, a rectifier bridge DB1, resistors R1, R2, R3, and R4, an optocoupler U2, and an optocoupler U3. Terminal 1 of the thyristor TR1 is electrically connected to the output terminal of the wall control switch K1 and one end of resistor R1. The other end of resistor R1 is electrically connected to one input terminal of optocoupler U2. Terminal 2 of the thyristor TR1 is electrically connected to one end of the fuse and one end of resistor R2. The other end of resistor R2 is electrically connected to terminal 3 of the thyristor TR1 and the other input terminal of optocoupler U2. The fuse is electrically connected to one end of the wall control power supply 11 and one input terminal of the rectifier bridge DB1. The other input terminal of the rectifier bridge DB1 is connected to the neutral (N) line of the mains power. One output terminal of the rectifier bridge DB1 is electrically connected to one input terminal of the optocoupler U3 via a series resistor R3, and the other output terminal of the rectifier bridge DB1 is electrically connected to the other input terminal of the optocoupler U3 via a series resistor R4. The rectifier bridge DB1 is used to rectify the AC signal into a DC signal. The output terminal of the optocoupler U3 outputs an isolated control signal to the main control module 20. The wall control chip U1 presets multiple high-frequency carrier signals (light on / off, fan on / off, fan forward / reverse, speed, etc.). The control panel on the wall has four function keys for controlling the fan: 0XA1-0XA4, corresponding to fan on / off, speed increase, speed decrease, and fan forward / reverse; and four LED light control keys: 0XA5-0XA8, corresponding to light on / off, dimming increase, dimming decrease, and color temperature switching.
[0013] When the wall control switch K1 is closed, multiple high-frequency carrier signals are controlled by the control buttons 0XA1-0XA8 on the wall panel to send out the corresponding carrier signals; the L line is sent to the thyristor TR1 through the optocoupler U2, the thyristor TR1 conducts and outputs the carrier signal, the L line is then transmitted to the input terminal of the load power supply 21 through the fuse, the control circuit is powered on and works, the carrier signal is output as a modulated control signal through resistor R3, resistor R4, rectifier bridge DB1, and optocoupler U3 to the main control module 20.
[0014] In some embodiments, the wall control coding protocol consists of a 10-bit code (prefix + 1010 + data code). Each press of the wall control switch K1 sends data, with key values encoded as 0xA1-0xA8. For example, pressing the color temperature switch button outputs 12 phase angles of 3ms each. A long press of the dimming up button outputs 1ms of phase angles continuously; a short press outputs 80 1ms of phase angles. A long press of the dimming down button outputs 2ms of phase angles continuously; a short press outputs 80 2ms of phase angles. This allows for adjustment of different brightness and color temperatures of the lights.
[0015] Furthermore, the main control module 20 includes a main control chip U4. The input terminal of the main control chip U4 is electrically connected to the output terminal of the modem module, and the output terminal of the main control chip U4 is electrically connected to the drive terminal of the drive module 22. The power supply terminal of the drive module 22 receives the load operating voltage. In some embodiments, the load is a 24V DC fan motor, and the drive circuit is a motor drive circuit, in which case the load operating voltage is 24V. In some embodiments, the load includes a fan motor and an LED light. The drive module 22 includes a motor drive module 22 and an LED drive module 22. The output terminal of the motor drive module 22 is electrically connected to the fan motor, and the LED drive module 22 is electrically connected to the LED light. This facilitates synchronous control of the fan and the LED light.
[0016] Furthermore, such as Figure 3 As shown, the system also includes a motor feedback detection module 25, which includes a resistor R34 and a capacitor C9. One end of the resistor R34 is electrically connected to the output terminal of the motor drive module 22, and the other end of the resistor R34 is electrically connected to one end of the capacitor C9 and the main control module 20. The other end of the capacitor C9 is grounded. The system also includes a voltage detection module 24 electrically connected to the main control module 20. The voltage detection module 24 includes a resistor R35, a resistor R36, and a capacitor C10. One end of the resistor R36 is connected to a second operating voltage, and the other end of the resistor R36 is electrically connected to one end of the resistor R35, one end of the capacitor C10, and the main control module 20. The other ends of the resistor R35 and the other ends of the capacitor C10 are grounded.
[0017] It also includes an alarm module 26 electrically connected to the main control module 20. The alarm module 26 can be, for example, Figure 3 The buzzer circuit shown.
[0018] Furthermore, it also includes an RF module 23, which is electrically connected to the main control module 20 to receive remote control signals. The main control module 20 controls the working state of the drive module 22 according to the remote control signals.
[0019] It will be readily understood by those skilled in the art that the above preferred methods can be freely combined and superimposed without conflict.
[0020] 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 fan light control circuit, characterized in that, include: The system includes a wall control switch K1, a wall control module (10), a carrier modulation module (12), a main control module (20), and a drive module (22). The mains power L is connected via the wall control switch K1 to the L-line input terminal of the carrier modulation module (12) and the load power supply (21), respectively. The L-line output terminal of the carrier modulation module (12) is connected to the wall control power supply (11). The wall control module (10) inputs a carrier signal to the carrier modulation module (12). The carrier modulation module (12) can modulate the carrier signal into a control signal and output it to the main control module (20). The main control module (20) controls the drive module (22) to work according to the control signal to drive the load.
2. The fan light control circuit according to claim 1, characterized in that: The wall control power supply (11) is used to convert the mains power into a first working voltage to power the wall control module (10) and the carrier modulation module (12) respectively. The load power supply (21) is used to convert the mains power into a second working voltage and a load working voltage to power the corresponding main control module (20) and the drive module (22).
3. The fan light control circuit according to claim 2, characterized in that: The wall control module (10) includes a wall control chip U1 and a plurality of control buttons electrically connected to the input terminal of the wall control chip U1, and the output terminal of the wall control chip U1 outputs the carrier signal.
4. The fan light control circuit according to claim 3, characterized in that: The carrier modulation module (12) includes a thyristor TR1, a fuse, a rectifier bridge DB1, resistors R1, R2, R3, and R4, an optocoupler U2, and an optocoupler U3. Terminal 1 of the thyristor TR1 is electrically connected to the output terminal of the wall switch K1 and one end of resistor R1. The other end of resistor R1 is electrically connected to one input terminal of optocoupler U2. Terminal 2 of the thyristor TR1 is electrically connected to one end of the fuse and one end of resistor R2. The other end of resistor R2 is electrically connected to terminal 3 of the thyristor TR1 and... The other input terminal of optocoupler U2 is electrically connected, and the other end of the fuse is electrically connected to the wall control power supply (11) and one input terminal of rectifier bridge DB1 respectively. The other input terminal of rectifier bridge DB1 is connected to the N line of the mains power. One output terminal of rectifier bridge DB1 is electrically connected to one input terminal of optocoupler U3 through series resistor R3. The other output terminal of rectifier bridge DB1 is electrically connected to the other input terminal of optocoupler U3 through series resistor R4. The output terminal of optocoupler U3 outputs the control signal to the main control module (20).
5. The fan light control circuit according to claim 2, characterized in that: The main control module (20) includes a main control chip U4. The input terminal of the main control chip U4 is electrically connected to the output terminal of the carrier modulation module (12). The output terminal of the main control chip U4 is electrically connected to the driving terminal of the driving module (22). The power supply terminal of the driving module (22) is input with the load operating voltage.
6. The fan light control circuit according to claim 2, characterized in that: The load includes a fan motor and an LED light. The drive module (22) includes a motor drive module (22) and an LED drive module (22). The output terminal of the motor drive module (22) is electrically connected to the fan motor, and the LED drive module (22) is electrically connected to the LED light.
7. The fan light control circuit according to claim 6, characterized in that: It also includes a motor feedback detection module (25), which includes a resistor R34 and a capacitor C9. One end of the resistor R34 is electrically connected to the output terminal of the motor drive module (22), and the other end of the resistor R34 is electrically connected to one end of the capacitor C9 and the main control module (20). The other end of the capacitor C9 is grounded.
8. The fan light control circuit according to claim 2, characterized in that: It also includes a voltage detection module (24) electrically connected to the main control module (20). The voltage detection module (24) includes a resistor R35, a resistor R36, and a capacitor C10. One end of the resistor R36 is connected to the second working voltage. The other end of the resistor R36 is electrically connected to one end of the resistor R35, one end of the capacitor C10, and the main control module (20), respectively. The other end of the resistor R35 and the other end of the capacitor C10 are respectively grounded.
9. The fan light control circuit according to claim 1, characterized in that: It also includes an alarm module (26) that is electrically connected to the main control module (20).
10. The fan light control circuit according to claim 1, characterized in that: It also includes an RF module (27), which is electrically connected to the main control module (20) to receive remote control signals. The main control module (20) controls the working state of the drive module (22) according to the remote control signals.