A wall control circuit for a lamp

Abstract

The application discloses a lamp wall control circuit, which comprises a wall control switch K1, a wall control module and a carrier wave modulation module arranged on a wall control panel, a main control chip U1, a load power supply and a driving module arranged on a main control panel, and a commercial power L which is electrically connected with the carrier wave modulation module through the wall control switch K1. The wall control module outputs a carrier wave signal to the carrier wave modulation module, and the carrier wave modulation module is used for modulating the carrier wave signal into a control signal. The commercial power L line supplies power to the load power supply through the carrier wave modulation module, and the control signal is transmitted to the main control chip U1 through the load power supply which is carried on the commercial power L line. The main control chip U1 controls the driving module to work to drive the load according to the control signal.

Description

Technical Field

[0001] This invention relates to the field of LED lighting control technology, and in particular to a wall-mounted control circuit for lighting fixtures. Background Technology

[0002] Ceiling fan lights driven by DC motors typically have RF receivers or pull switches, which control the fan's operation. However, this can be inconvenient due to lost remotes or unsuitable switch heights. Therefore, some customers have started using wall-mounted control panels. However, wall-mounted control is limited by technology; the live (L) and neutral (N) wires need to power the ceiling-mounted load and the wall-mounted control panel respectively, requiring high-voltage live (L) wires to be installed on both the ceiling and walls, which is inconvenient for users. Summary of the Invention

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a lighting wall control circuit that facilitates wall control.

[0004] According to an embodiment of the present invention, a wall-mounted lighting control circuit includes a wall-mounted switch K1, a wall-mounted module, and a carrier modulation module disposed on a wall-mounted control panel; a main control chip U1, a load power supply, and a drive module disposed on a main control board; a mains power supply L is electrically connected to the carrier modulation module via the wall-mounted switch K1; the wall-mounted control module outputs a carrier signal to the carrier modulation module; the carrier modulation module modulates the carrier signal into a control signal; the mains power supply L supplies power to the load power supply via the carrier modulation module; and the control signal is transmitted to the main control chip U1 via the load power supply through the mains power supply L; the main control chip U1 controls the drive module to operate to drive the load according to the control signal.

[0005] The wall-mounted lighting control circuit according to embodiments of the present invention has at least the following beneficial effects: Only a high-voltage L-line needs to be laid on the wall, and a N-line on the ceiling. A carrier signal is output through the wall control module, and the carrier modulation module modulates this carrier signal into a control signal. The mains L-line supplies power to the load via the carrier modulation module. The control signal is transmitted to the main control chip U1 via the load power supply through the mains L-line. After processing and parsing, the main control chip U1 obtains the data to be executed and issues corresponding instructions (such as controlling fan rotation, forward and reverse rotation, speed, and light on / off commands) to the drive module, 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 carry the carrier signal, eliminating the need to lay L-lines on both the ceiling and walls, avoiding the need to re-lay out high-voltage power lines, effectively improving the installation process, further saving costs, and facilitating application.

[0006] Additional aspects and advantages of the 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 the present invention will be further described below with reference to the accompanying drawings;

[0008] Figure 1 This is the control block diagram of the wall-mounted lighting circuit;

[0009] Figure 2 This is the circuit diagram of the wall control section;

[0010] Figure 3 This is the circuit schematic of the main control board;

[0011] Figure 4 This is a circuit diagram for an LED light. Detailed Implementation

[0012] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention 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 overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0013] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 limiting this invention.

[0014] In the description of this invention, "several" means one or more, "more than" 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. The use of "first" and "second" in the description is merely for 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.

[0015] Reference Figures 1 to 4This invention discloses a wall-mounted lighting control circuit, comprising a wall-mounted switch K1, a wall-mounted module 10, a wall-mounted power supply 11, and a carrier modulation module 12 mounted on a wall-mounted control panel; a main control chip U1, a load power supply 20, and a drive module mounted on a main control board; a mains power supply L connected to the carrier modulation module 12 via the wall-mounted switch K1; the wall-mounted module 10 outputs a carrier signal to the carrier modulation module 12; and the carrier modulation module 12 modulates the carrier signal into a control signal. The mains power supply L supplies power to the load power supply 20 via the carrier modulation module 12, and the control signal... The AC mains power is transmitted to the main control chip U1 via the load power supply 20 through the L line. The main control chip U1 controls the drive module to operate and drive the load according to the control signal. The N line is connected to the wall control power supply 11 and the load power supply 20 respectively. The wall control power supply 11 is used to convert the AC mains power into a first operating voltage (generally 5V) to power the wall control module 10 and the carrier modulation module 12 respectively. The load power supply 21 is used to convert the AC mains 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 chip U1 and drive module. Both the wall control power supply 11 and the load power supply 20 use existing conventional power conversion circuits to convert AC mains power into DC operating voltage. Since the L-line supplies power to the load power supply 20 via the wall control 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 control module 10 outputs a carrier signal, which the carrier modulation module 12 modulates into a control signal and outputs to the main control chip U1. After processing and parsing, the main control chip U1 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, 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 re-installing high-voltage power lines, effectively improving the installation process, saving costs, and facilitating application.

[0016] like Figure 2 As shown, the wall control module 10 includes a wall control chip U0 and multiple control buttons electrically connected to the input terminals of the wall control chip U0. The output terminal of the wall control chip U0 outputs the carrier signal. The carrier modulation module 12 includes a thyristor TR1, resistors R1 and R2, and an optocoupler U1. The carrier signal is input to the input terminal of the optocoupler U1. 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 the optocoupler U1. Terminal 2 of the thyristor TR1 is electrically connected to one end of resistor R2 and the input terminal of the load power supply. The other end of resistor R2 is electrically connected to terminal 3 of the thyristor TR1 and the other output terminal of the optocoupler U1.

[0017] like Figure 3As shown, in some embodiments, the main control board is provided with a carrier receiving module 21. The control signal is transmitted to the carrier receiving module 21 via the load power supply 20 through the mains L line. The carrier receiving module is used to isolate the control signal and convert it into a motor control signal and a dimming signal. The motor control signal and the dimming signal are respectively input to the main control chip U1. The carrier receiving module 21 includes a first receiving module 211 and a second receiving module 212. The first receiving module includes an optocoupler U2 and an optocoupler U3. The control signal is transmitted via the mains L line and the filtering circuit of the load power supply to the input terminals of the optocouplers U2 and U3. The output terminals of the optocouplers U2 and U3 respectively output the motor control signal to the main control chip U1. The carrier receiving module 21 includes a second receiving module 212, which is a silicon controlled rectifier (SCR) dimming circuit. The control signal is input to the SCR dimming circuit after passing through the filter circuit of the load power supply via the mains L line. The SCR dimming circuit outputs a dimming signal to the main control chip U1.

[0018] In practical applications, the wall control panel 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. When the wall control switch K1 is closed, multiple high-frequency carrier signals are emitted through the control keys 0XA1-0XA8 on the wall panel. The L line is sent to the SCR TR1 via optocoupler U1. The SCR TR1 conducts and outputs a control signal. The L line passes through the carrier modulation module 12 to output an ACL-A signal to power the load power supply 21. The control signal is carried on the ACL-A signal and, after passing through the filter circuit of the load power supply 21, is input to the carrier signal receiving module 21. The carrier receiving module is used to isolate the control signal and convert it into a motor control signal ZB and a dimming signal lamp. The motor control signal and the dimming signal are respectively input to the main control chip U1.

[0019] Furthermore, the carrier receiving module 21 includes a first receiving module 211, which includes optocouplers U2 and U3. The control signal is input to the input terminals of optocouplers U2 and U3 after passing through the filter circuit of the load power supply via the mains L line. The output terminals of optocouplers U2 and U3 respectively output the motor control signal to the main control chip U1. The carrier receiving module 21 also includes a second receiving module 212, which is a silicon controlled rectifier (SCR) dimming circuit. The control signal is input to the SCR dimming circuit after passing through the filter circuit of the load power supply via the mains L line. The SCR dimming circuit outputs a dimming signal to the main control chip U1.

[0020] Furthermore, the drive module includes a motor drive module 22 for driving the fan and an LED drive module for driving the LED lamps.

[0021] In some embodiments, the load is a 24V DC fan motor and an LED light. The driving circuit includes a motor driving circuit 22 and an LED driving module. The LED light and the LED driving module are as follows: Figure 4 As shown, it can achieve synchronous control of the fan and LED lights.

[0022] Furthermore, it also includes an alarm module 26 electrically connected to the main control chip U1. The alarm module 26 can be adopted as follows: Figure 3 The buzzer circuit shown.

[0023] It will be readily understood by those skilled in the art that the above preferred methods can be freely combined and superimposed without conflict.

[0024] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct or indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A wall-mounted control circuit for a lighting fixture, characterized in that, include: The wall control panel is equipped with a wall control switch K1, a wall control module (10), and a carrier modulation module (12). The mains power L is electrically connected to the carrier modulation module (12) via the wall control switch K1. The wall control module (10) outputs a carrier signal to the carrier modulation module (12), and the carrier modulation module (12) is used to modulate the carrier signal into a control signal. The main control chip U1, the load power supply (20) and the drive module are set on the main control board. The mains power line L supplies power to the load power supply (20) through the carrier modulation module (12), and the control signal is transmitted to the main control chip U1 through the load power supply (20) via the mains power line L. The main control chip U1 controls the drive module to work to drive the load according to the control signal.

2. The lamp wall control circuit according to claim 1, characterized in that: The wall control panel is also equipped with a wall control power supply (11), which is used to convert the mains power into the working voltage to power the wall control module (10) and the carrier modulation module (12) respectively.

3. The lamp wall control circuit according to claim 2, characterized in that: The wall control module (10) includes a wall control chip U0 and a plurality of control buttons electrically connected to the input terminal of the wall control chip U0, and the output terminal of the wall control chip U0 outputs the carrier signal.

4. The lamp wall control circuit according to claim 1, characterized in that: The carrier modulation module (12) includes a thyristor TR1, a resistor R1, a resistor R2, and an optocoupler U1. The carrier signal is input to the input terminal of the optocoupler U1. Terminal 1 of the thyristor TR1 is electrically connected to the output terminal of the wall switch K1 and one end of the resistor R1. The other end of the resistor R1 is electrically connected to one input terminal of the optocoupler U1. Terminal 2 of the thyristor TR1 is electrically connected to one end of the resistor R2 and the input terminal of the load power supply. The other end of the resistor R2 is electrically connected to terminal 3 of the thyristor TR1 and the other output terminal of the optocoupler U1.

5. The lamp wall control circuit according to claim 1, characterized in that: The main control board is equipped with a carrier receiving module (21). The control signal is transmitted to the carrier receiving module (21) via the load power supply (20) through the mains power line L. The carrier receiving module is used to isolate the control signal and convert the control signal into a motor control signal and a dimming signal. The motor control signal and the dimming signal are respectively input to the main control chip U1.

6. The lamp wall control circuit according to claim 5, characterized in that: The carrier receiving module (21) includes a first receiving module (211), which includes an optocoupler U2 and an optocoupler U3. The control signal is input to the input terminal of the optocoupler U2 and the input terminal of the optocoupler U3 after passing through the filter circuit of the load power supply via the mains L line. The output terminals of the optocoupler U2 and the optocoupler U3 respectively output the motor control signal to the main control chip U1.

7. The lamp wall control circuit according to claim 6, characterized in that: The carrier receiving module (21) includes a second receiving module (212), which is a thyristor dimming circuit. The control signal is input to the thyristor dimming circuit after passing through the filter circuit of the load power supply via the mains L line. The thyristor dimming circuit outputs a dimming signal to the main control chip U1.

8. The lamp wall control circuit according to claim 1, characterized in that: The drive module includes a motor drive module (22) for driving the fan and an LED drive module for driving the LED lamps.

Images