Fan lamp control system and method for generating trigger signal based on pull switch

Abstract

The invention provides a fan lamp control system and method for generating a trigger signal based on a pull rope switch. The system at least comprises a lamplight control pull rope, a fan control pull rope, a lamplight pull rope trigger circuit, a fan pull rope trigger circuit and a fan lamp controller. Wherein the light control pull rope triggers the light pull rope trigger circuit by pulling to generate a light trigger signal; the fan control pull rope triggers the fan pull rope trigger circuit by pulling to generate a fan trigger signal; and the fan lamp controller adjusts and controls the light of the fan lamp according to the light trigger signal, and adjusts and controls the fan of the fan lamp according to the fan trigger signal. The trigger signal of the pull-cord switch is converted into the light trigger signal and the fan trigger signal of the corresponding fan lamp, and function control of various fan lamps can be realized through simple combination of the trigger signals of different pull-cord switches, so that the influence caused by mechanical aging of the fan lamps is avoided; and the stability and the application range of the fan lamp are improved.

Description

Technical Field

[0001] The present application belongs to the field of lighting technology, and in particular to the field of fan lamp technology. Background Art

[0002] Traditional cord-operated fan lights, as hybrid appliances for indoor lighting and ventilation, have long relied on mechanical switch structures for basic on / off functions. Existing solutions generally employ a physical cord-operated mechanism linked to a contact-type switch, directly disconnecting or connecting the AC circuit to control the operating status of the fan motor and lighting module. This traditional control method has exposed multiple technical flaws in practical applications.

[0003] Existing cord-pull mechanisms only support simple on-and-off power, limiting control dimensions. Advanced functions like air volume adjustment, light intensity control, or operating mode switching are infeasible, making it difficult to meet users' dynamic needs for a comfortable environment. For example, in the summer, when low-speed, silent ventilation is required, a complete power outage is still required to interrupt service. Existing systems exhibit lag in human-computer interaction, and the physical cord-pull operation mode cannot achieve remote control or automated scene linkage. This generational gap with smart home systems limits the product's compatibility within the smart home ecosystem.

[0004] Existing cable-pulling mechanisms suffer from transient current surges. The sudden on-off switching of the mechanical switch can trigger surge currents as high as 5-8 times the rated current, causing shock damage to the insulation layer of the motor windings. Long-term cumulative damage can significantly shorten the service life of core components. Experimental data shows that frequent starting and stopping can increase the motor failure rate by over 40%. Existing cable-pulling mechanisms also pose the problem of grid harmonic pollution. The transient voltage surges generated by the switching action can inject high-frequency harmonics into the grid, affecting the normal operation of other precision electronic equipment on the same line and reducing overall power quality.

[0005] The highly coupled design of traditional mechanical structures and high-voltage circuits means that adding an electronic speed control module or intelligent controller requires reconfiguring the entire electrical topology, complicating hardware modifications and presenting engineering challenges such as spatial layout and electromagnetic compatibility. Using relay arrays for multi-speed control not only increases hardware redundancy but also further reduces system reliability due to the coexistence of mechanical and electronic contacts, violating the principle of economical product iteration and leading to a cost-benefit imbalance.

[0006] Therefore, how to optimize the performance of the cord-operated fan lamp has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0007] The present application provides a fan lamp control system and method based on a pull-cord switch to generate a trigger signal, which is used to optimize the performance of a pull-cord fan lamp.

[0008] An embodiment of the present application provides a fan light control system that generates a trigger signal based on a pull-cord switch, comprising at least: a light control pull cord, a fan control pull cord, a light pull cord trigger circuit, a fan pull cord trigger circuit, and a fan light controller; wherein: the light control pull cord is connected to the light pull cord trigger circuit, and the light control pull cord triggers the light pull cord trigger circuit to generate a light trigger signal by pulling; the fan control pull cord is connected to the fan pull cord trigger circuit, and the fan control pull cord triggers the fan pull cord trigger circuit to generate a fan trigger signal by pulling; the fan light controller is respectively connected to the light pull cord trigger circuit and the fan pull cord trigger circuit, and adjusts and controls the light of the fan light according to the light trigger signal, and adjusts and controls the fan of the fan light according to the fan trigger signal.

[0009] In one implementation of the present application, the light cord trigger circuit includes: a light mechanical switch, connected to the light control cord, and the closing or opening of the switch contacts is achieved by the displacement generated by pulling the light control cord; a first filtering circuit, connected to the output end of the light mechanical switch, for filtering the signal at the output end of the light mechanical switch; a first voltage divider circuit, for performing level conversion on the signal at the output end of the light mechanical switch and outputting a corresponding light trigger signal.

[0010] In one implementation of the present application, the fan pull cord trigger circuit includes: a fan mechanical switch, connected to the fan control pull cord, and the closing or opening of the switch contacts is achieved by the displacement generated by pulling the fan control pull cord; a second filtering circuit, connected to the output end of the fan mechanical switch, for filtering the signal at the output end of the fan mechanical switch; a second voltage divider circuit, for performing level conversion on the signal at the output end of the fan mechanical switch, and outputting a corresponding fan trigger signal.

[0011] In one implementation of the present application, the fan light controller includes: a light control module, which determines the number of times the light control pull cord is pulled, the pulling duration and / or the pulling time interval according to the light trigger signal received from the light pull cord trigger circuit, and adjusts the color, brightness and / or flashing mode of the lamp in the fan light according to the number of times the light control pull cord is pulled, the pulling duration and / or the pulling time interval; a fan control module, which determines the number of times the fan control pull cord is pulled, the pulling duration and / or the pulling time interval according to the fan trigger signal received from the fan pull cord trigger circuit, and adjusts the switch and speed of the fan motor in the fan light according to the number of times the fan control pull cord is pulled, the pulling duration and / or the pulling time interval.

[0012] In one implementation of the present application, it also includes: a communication module, including a WiFi chip and / or a Bluetooth chip, for establishing WiFi communication and / or Bluetooth communication; a WiFi connection control module, detecting whether the number of times the fan control pull cord or the light control pull cord is pulled, the pulling duration and / or the pulling time interval form a first preset operation, and when the first preset operation is formed, controlling the communication module to enter the WiFi hotspot search or network configuration mode to establish a WiFi network connection.

[0013] In one implementation of the present application, the fan light controller also includes: a code clearing module, which clears the stored WiFi configuration, user data and / or pairing information according to a preset operation formed by a combination of at least two of the number of times the fan control pull cord or the light control pull cord is pulled, the pulling duration and / or the pulling time interval.

[0014] In one implementation of the present application, the fan light controller also includes: a remote control application interaction module, which detects whether the number of times the fan control pull cord or the light control pull cord is pulled, the pulling duration and / or the pulling time interval form a second preset operation, and when the second preset operation is formed, controls the communication module to enter the WiFi hotspot or Bluetooth search or network distribution mode, establishes a WiFi network connection or Bluetooth network connection with the mobile terminal, so as to interact with the remote control application of the mobile terminal for data, and adjusts the light and fan of the fan light according to the control instructions received from the remote control application.

[0015] In one implementation of the present application, the fan light controller also includes: an EMC filter module, connected to the power input end, for performing EMC filtering on the input signal of the power input end; a voltage protection module, connected to the EMC filter module, for performing voltage protection; and a rectifier module, connected to the voltage protection module, for converting the AC voltage signal of the power input into a high-voltage DC signal.

[0016] In one implementation of the present application, the fan light controller further includes: a step-down module, connected to the rectifier module, for converting the high-voltage DC signal output by the rectifier module into a low-voltage DC signal; the step-down module includes at least a power management IC chip, a MOS tube high-frequency switch, a transformer, and a rectifier diode module connected in sequence.

[0017] In one implementation of the present application, the fan lamp controller further includes: a monitoring module, configured to collect the status of a fan motor and a lamp in the fan lamp to monitor the fan motor and the lamp.

[0018] An embodiment of the present application also provides a fan light control method based on a pull-cord switch to generate a trigger signal, including: pulling the light control pull cord to trigger the light pull cord trigger circuit to generate a light trigger signal; pulling the fan control pull cord to trigger the fan pull cord trigger circuit to generate a fan trigger signal; adjusting the light of the fan light according to the light trigger signal, and adjusting the fan of the fan light according to the fan trigger signal.

[0019] In one implementation of the present application, adjusting the light of the fan lamp according to the light trigger signal, and adjusting the fan of the fan lamp according to the fan trigger signal include: determining the number of times the light control pull cord is pulled, the pulling duration and / or the pulling time interval according to the light trigger signal received from the light pull cord trigger circuit, and adjusting the color, brightness and / or flashing mode of the lamp in the fan lamp according to the number of times the light control pull cord is pulled, the pulling duration and / or the pulling time interval; determining the number of times the fan control pull cord is pulled, the pulling duration and / or the pulling time interval according to the fan trigger signal received from the fan pull cord trigger circuit, and adjusting the switch and speed of the fan motor in the fan lamp according to the number of times the fan control pull cord is pulled, the pulling duration and / or the pulling time interval.

[0020] The fan light control system and method based on a pull-cord switch generating a trigger signal provided in the embodiments of the present application have the following beneficial effects:

[0021] In this application, the trigger signal of the pull-cord switch is converted into the corresponding light trigger signal and fan trigger signal of the fan light, thereby realizing the adjustment and control of the light and fan of the fan light. The function control of multiple fan lights can be achieved through a simple combination of trigger signals of different pull-cord switches, avoiding the influence of mechanical aging of the fan light and improving the stability and applicability of the fan light. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Shown is an overall principle block diagram of a fan light control system based on a pull-cord switch to generate a trigger signal according to an embodiment of the present application.

[0023] Figure 2 Shown is a principle block diagram of a light pull-cord trigger circuit in a fan light control system based on a pull-cord switch to generate a trigger signal according to an embodiment of the present application.

[0024] Figure 3 Shown is a circuit diagram of a light pull-cord trigger circuit in a fan light control system based on a pull-cord switch to generate a trigger signal according to an embodiment of the present application.

[0025] Figure 4Shown is a principle block diagram of a fan pull-cord trigger circuit in a fan light control system that generates a trigger signal based on a pull-cord switch according to an embodiment of the present application.

[0026] Figure 5 Shown is a circuit diagram of a fan pull-cord trigger circuit in a fan light control system that generates a trigger signal based on a pull-cord switch according to an embodiment of the present application.

[0027] Figure 6 Shown is a control block diagram of a fan light controller in a fan light control system based on a pull-cord switch to generate a trigger signal according to an embodiment of the present application.

[0028] Figure 7 Shown is a preferred principle block diagram of a fan light controller in a fan light control system based on a pull-cord switch to generate a trigger signal according to an embodiment of the present application.

[0029] Figure 8 Shown is a circuit diagram of a fan light controller in a fan light control system based on a pull-cord switch to generate a trigger signal according to an embodiment of the present application.

[0030] Figure 9 Shown is a block diagram of the application control principle of a fan light controller in a fan light control system based on a pull-cord switch to generate a trigger signal according to an embodiment of the present application.

[0031] Figure 10 The figure shows a flow chart of a fan light control method based on generating a trigger signal by a pull-cord switch according to an embodiment of the present application.

[0032] Component marking instructions

[0033] 100 Fan light control system based on pull-cord switch to generate trigger signal

[0034] 110 Lighting control cord

[0035] 120 Fan Control Cord

[0036] 130 Light pull cord trigger circuit

[0037] 131 Light Mechanical Switch

[0038] 132 First filter circuit

[0039] 133 First voltage divider circuit

[0040] 140 Fan pull cord trigger circuit

[0041] 141 Fan mechanical switch

[0042] 142 Second filter circuit

[0043] 143 Second voltage divider circuit

[0044] 150 Fan Light Controller

[0045] 151 Lighting Control Module

[0046] 152 Fan Control Module

[0047] 153 EMC filter module

[0048] 154 Voltage Protection Module

[0049] 155 rectifier module

[0050] 156 Buck Module

[0051] 157 Communication Module

[0052] 158 WiFi connection control module

[0053] 159 Clear Code Module

[0054] 1510 Remote Control Application Interaction Module

[0055] 1511 Monitoring Module

[0056] 200 External Terminal

[0057] Steps S110 to S130 DETAILED DESCRIPTION

[0058] The following describes the embodiments of the present application through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present application from the content disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other unless they conflict.

[0059] This embodiment provides a fan light control system and method based on a pull-cord switch to generate a trigger signal, designed to optimize the performance of a pull-cord fan light. This embodiment converts the trigger signal generated by the pull-cord switch into a level signal in the fan light controller. The controller then adjusts the fan light's light and fan speed based on the number and duration of triggers.

[0060] The following is a combination of the appended examples of the present application Figure 1 To the attached Figure 10The technical solutions of the fan light control system and method based on a pull-cord switch to generate a trigger signal in the embodiments of the present application are described in detail. This will enable those skilled in the art to understand and implement the fan light control system and method based on a pull-cord switch to generate a trigger signal in the embodiments without requiring any creative effort.

[0061] Figure 1 The overall principle block diagram of the fan light control system based on the pull cord switch to generate the trigger signal according to one embodiment of the present application is shown. Figure 1 As shown, the fan light control system 100 based on the pull cord switch to generate a trigger signal provided in the embodiment of the present application includes at least: a light control pull cord 110, a fan control pull cord 120, a light pull cord trigger circuit 130, a fan pull cord trigger circuit 140 and a fan light controller 150.

[0062] In which: the light control pull rope 110 is connected to the light pull rope trigger circuit 130, and the light control pull rope 110 triggers the light pull rope trigger circuit 130 to generate a light trigger signal by pulling; the fan control pull rope 120 is connected to the fan pull rope trigger circuit 140, and the fan control pull rope 120 triggers the fan pull rope trigger circuit 140 to generate a fan trigger signal by pulling; the fan light controller 150 is respectively connected to the light pull rope trigger circuit 130 and the fan pull rope trigger circuit 140, and adjusts and controls the light of the fan light according to the light trigger signal, and adjusts and controls the fan of the fan light according to the fan trigger signal.

[0063] In this embodiment, the trigger signal generated by pulling the light control rope 110 and the fan control rope 120 enters the fan controller, and the fan controller adjusts and controls the light and fan according to the corresponding trigger signal, avoiding the problems in the prior art of directly cutting off or connecting the AC circuit to control the operating status of the fan motor and lighting module, such as a single control dimension, frequent starting and stopping to generate current shocks that affect the life of the fan light, poor scalability, and difficulty in integrating intelligent control functions.

[0064] The fan light control system in this embodiment is described in detail below.

[0065] In this embodiment, the light control pull cord 110 is connected to the light pull cord trigger circuit 130 , and the light control pull cord 110 triggers the light pull cord trigger circuit 130 to generate a light trigger signal by pulling the light control pull cord 110 . Figure 2 The schematic diagram of the light cord trigger circuit 130 in the fan light control system 100 based on the pull cord switch to generate the trigger signal according to one embodiment of the present application is shown. Figure 2As shown, in one implementation of this embodiment, the light cord trigger circuit 130 includes: a light mechanical switch 131 , a first filter circuit 132 and a first voltage divider circuit 133 .

[0066] The mechanical light switch 131 is connected to the light control cord 110, and the switch contacts are closed or opened by the displacement generated by pulling the light control cord 110. The first filter circuit 132 is connected to the output of the mechanical light switch 131 and is used to filter the signal at the output of the mechanical light switch 131 to suppress high-frequency noise caused by mechanical vibration. The first voltage divider circuit 133 is connected to the first filter circuit 132 and is used to convert the level of the filtered signal at the output of the mechanical light switch 131 to output a corresponding light trigger signal. The output of the first voltage divider circuit 133 is connected to a supply voltage (e.g., 5V, forming a high level). When the switch contacts of the mechanical light switch 131 are open, the output of the first voltage divider circuit 133 maintains a high level signal. When the switch contacts of the mechanical light switch 131 are closed, the output of the first voltage divider circuit 133 changes to a low level signal. Therefore, in this embodiment, the closing or opening of the mechanical light switch 131 can be identified by the change in the high and low level signals.

[0067] In this embodiment, the light control cord 110 is a flexible rope with one end fixed to the light mechanical switch 131 and the other end for the user to pull. In this embodiment, various methods can be used to achieve the closing or opening of the switch contacts by the displacement generated by pulling the light control cord 110. For example, the light mechanical switch 131 includes a transmission mechanism and a switch body; the transmission mechanism includes a pulley system and a lever or connecting rod; the light control cord 110 slips around the pulley system to change the direction of the force, for example, converting a lateral pulling force into a vertical or horizontal displacement. The lever or connecting rod transmits the displacement of the pulley to the switch contacts of the switch body. The switch body includes a static contact, a moving contact, and a reset device; the static contact is a fixed contact connected to the light cord trigger circuit 130, and the moving contact is a movable contact that closes or separates with the static contact through mechanical action. The reset device includes a spring or gravity component to return the moving contact to its initial state.

[0068] When the light control cord 110 is pulled, the light mechanical switch 131 is controlled to be closed, so that the light cord trigger circuit 130 generates an output signal corresponding to the closing state. The process is as follows:

[0069] When the light control cord 110 is pulled, it passes around the pulley, amplifying its displacement through the lever effect of the pulley assembly. The pulley drives the connecting rod or push rod, and the lateral displacement of the cord is converted into vertical movement of the movable contact through the lever, pushing the movable contact toward the stationary contact, closing the switch contacts, turning on the light cord trigger circuit 130, and outputting a corresponding light trigger signal. The number of times and duration that the light control cord 110 is pulled, and the number of times and duration that the light cord trigger circuit 130 is turned on, can be controlled to generate different light trigger signals, thereby achieving multiple control modes for the fan light.

[0070] When the light control cord 110 is released, the disconnection process of the light mechanical switch 131 is as follows:

[0071] The spring in the light mechanical switch 131 contracts when the light control cord 110 is released, pushing the moving contact away from the static contact, and the moving contact separates from the static contact, causing the light mechanical switch 131 to be disconnected.

[0072] Figure 3 The circuit diagram of the light pull cord trigger circuit 130 in the fan light control system 100 based on the pull cord switch to generate the trigger signal according to one embodiment of the present application is shown. Figure 3 As shown, the light cord trigger circuit 130 includes a light mechanical switch 131S1, a capacitor C24, a resistor R53, and a resistor R54. The first end of the light mechanical switch 131S1 is connected to the light control cord 110L1, and the second end is grounded. The capacitor C24 and the resistor R54 are connected in parallel to form an RC filter circuit (i.e., a first filter circuit 132). The first ends of the capacitor C24 and the resistor R54 are grounded, and the second ends are connected to the light mechanical switch 131S1. The second end of the resistor R54 is also connected to the first end of the resistor R53, and the second end of the resistor R54 serves as a voltage output terminal.

[0073] Figure 4 The schematic diagram of the fan pull cord trigger circuit 140 in the fan light control system 100 based on the pull cord switch to generate the trigger signal according to an embodiment of the present application is shown. Figure 4 As shown, in an implementation of this embodiment, the fan pull-cord trigger circuit 140 includes: a fan mechanical switch 141 , a second filter circuit 142 and a second voltage divider circuit 143 .

[0074] The fan mechanical switch 141 is connected to the fan control pull cord 120, and the switch contact is closed or opened by the displacement generated by pulling the fan control pull cord 120; the second filter circuit 142 is connected to the output end of the fan mechanical switch 141, and is used to filter the signal at the output end of the fan mechanical switch 141; the second voltage divider circuit 143 is used to convert the level of the signal at the output end of the fan mechanical switch 141 and output a corresponding fan trigger signal. The output end of the second voltage divider circuit 143 is connected to a supply voltage (e.g., 5V, forming a high level). When the switch contact of the fan mechanical switch 141 is disconnected, the output end of the second voltage divider circuit 143 maintains a high level signal. When the switch contact of the fan mechanical switch 141 is connected, the output end of the second voltage divider circuit 143 changes to a low level signal. Therefore, this embodiment can identify the closing or opening of the fan mechanical switch 141 by the change of the high and low level signals.

[0075] In this embodiment, the fan control pull rope 120 is a flexible rope, one end of which is fixed to the fan mechanical switch 141, and the other end is for the user to pull. In this embodiment, a variety of methods can be sampled to achieve the closing or opening of the switch contacts by pulling the displacement generated by the fan control pull rope 120. Exemplarily, the fan mechanical switch 141 includes a transmission mechanism and a switch body; the transmission mechanism includes a pulley set and a lever or a connecting rod; the fan control pull rope 120 slips around the pulley set to change the direction of the force, for example, converting the lateral tension into a vertical or horizontal displacement. The lever or the connecting rod transmits the displacement of the pulley to the switch contact of the switch body. The switch body includes a static contact, a moving contact and a reset device; the static contact is a fixed contact connected to the fan pull rope trigger circuit 140, and the moving contact is a movable contact that closes or separates with the static contact through mechanical action. The reset device includes a spring or a gravity component to return the moving contact to its initial state.

[0076] When the fan control cord 120 is pulled, the light mechanical switch 131 is controlled to be closed, so that the fan cord trigger circuit 140 generates an output signal corresponding to the closing state. The process is as follows:

[0077] Pulling the fan control cord 120 causes it to pass around the pulleys, amplifying their displacement through the lever effect of the pulley assembly. The pulleys then drive the connecting rod or push rod, converting the cord's lateral displacement into vertical movement of the movable contact via the lever, pushing the movable contact toward the stationary contact. This closes the switch contacts, energizing the light cord trigger circuit 130 and outputting a corresponding light trigger signal. The number of times and duration that the fan control cord 120 is pulled, as well as the number of times and duration that the light cord trigger circuit 130 is switched on, can be controlled to generate different fan trigger signals, enabling various fan control methods for the fan light.

[0078] When the fan control cord 120 is released, the disconnection process of the fan mechanical switch 141 is as follows:

[0079] The spring in the fan mechanical switch 141 contracts when the fan control pull cord 120 is released, pushing the moving contact away from the static contact. The moving contact is separated from the static contact, and the fan mechanical switch 141 is disconnected.

[0080] Figure 5 The circuit diagram of the fan pull cord trigger circuit 140 in the fan light control system 100 based on the pull cord switch to generate the trigger signal according to an embodiment of the present application is shown. Figure 5 As shown, the fan pull cord trigger circuit 140 includes: a fan mechanical switch 141S2, a capacitor C25, a resistor R55, and a resistor R56. The first end of the fan mechanical switch 141S2 is connected to the fan control pull cord 120L2, and the second end is grounded. The capacitor C25 and the resistor R56 are connected in parallel to form an RC filter circuit (i.e., a second filter circuit 142). The first ends of the capacitor C25 and the resistor R54 are grounded, and the second ends are connected to the fan mechanical switch 141S2. The second end of the resistor R56 is also connected to the first end of the resistor R55, and the second end of the resistor R55 serves as a voltage output end.

[0081] In this embodiment, the light trigger signal output by the light pull-cord trigger circuit 130 and the fan trigger signal output by the fan pull-cord trigger circuit 140 are transmitted to the fan light controller 150. The fan light controller 150 generates different control signals according to the number of trigger signals received, the trigger duration, the trigger interval, etc., to realize multiple controls of the fan light.

[0082] Figure 6 The control block diagram of the fan light controller 150 in the fan light control system 100 based on the pull cord switch to generate the trigger signal according to an embodiment of the present application is shown. Figure 6 As shown, in one implementation of this embodiment, the fan light controller 150 includes: a light control module 151 and a fan control module 152 .

[0083] In this embodiment, the lighting control module 151 converts the mechanical motion of the lighting control cord 110 into an electrical lighting control signal. Specifically, the lighting control module 151 determines the number of pulls, pull duration, and / or pull interval of the lighting control cord 110 based on the lighting trigger signal received from the lighting cord trigger circuit 130. The module then adjusts the color, brightness, and / or flashing pattern of the fan light based on the number of pulls, pull duration, and / or pull interval of the lighting control cord 110. In other words, in this embodiment, the number of pulls, pull duration, and / or pull interval of the lighting control cord 110 can be combined to form multiple control modes, generating a variety of lighting control signals. The lighting control module 151 can adjust the color, brightness, or flashing pattern of the LED light based on the electrical signal from the lighting control cord 110. For example, a single pull of the lighting control cord 110 can switch the light color, such as switching from white to yellow to neutral, while continuous and rapid pulls can adjust the brightness.

[0084] In this embodiment, the lighting control module 151 includes a lamp driving circuit, which realizes voltage-to-current conversion through an LED constant current driver chip. The input voltage is regulated by an internal MOS tube, stepped down by a detection resistor, and then fed back to the control loop to dynamically adjust the PWM duty cycle to ensure that the output current is at the set value.

[0085] In this embodiment, the fan control module 152 converts the mechanical motion of the fan control cord 120 into an electrical fan control signal. Specifically, the fan control module 152 determines the number of times the fan control cord 120 is pulled, the duration of the pull, and / or the time interval between pulls based on the fan trigger signal received from the fan cord trigger circuit 140. The module then adjusts the on / off state and speed of the fan motor in the fan light based on the number of times, duration, and / or time interval of the pulls. In other words, in this embodiment, the number of times, durations, and / or time intervals of the pulls on the fan control cord 120 form multiple combinations of control modes to generate multiple fan control signals. The fan control module 152 can adjust the fan motor's on / off state and speed based on the electrical signal from the fan control cord 120, enabling switching between at least two wind speed settings. For example, a single pull of the fan control cord 120 switches wind speed settings, such as switching from low to medium to high speed in a cyclic manner. The fan start and stop are controlled by the duration or number of pulls on the light control cord 110.

[0086] In this embodiment, the fan control module 152 includes a motor drive unit, which detects the motor rotor position through the motor's back electromotive force, drives the MOS tube to turn on through PWM to realize motor operation (start and stop), and adjusts the motor speed by outputting different drive frequencies.

[0087] Therefore, in this embodiment, the trigger signal of the pull-cord switch is converted into the corresponding light trigger signal and fan trigger signal of the fan light, thereby realizing the adjustment and control of the light and fan of the fan light, and realizing the functional control of multiple fan lights by simply combining the trigger signals of different pull-cord switches, avoiding the influence of mechanical aging of the fan light, and improving the stability and applicability of the fan light.

[0088] Figure 7 Shown is a preferred principle block diagram of a fan light controller 150 in a fan light control system 100 based on a pull-cord switch to generate a trigger signal according to an embodiment of the present application. Figure 7 As shown, in an implementation of this embodiment, the fan light controller 150 further includes: an EMC filter module 153 , a voltage protection module 154 , a rectifier module 155 and a voltage reduction module 156 . Figure 8 This diagram illustrates a circuit example of a fan light controller 150 in a fan light control system 100 that generates a trigger signal based on a pull-cord switch, according to one embodiment of the present application. In other implementations, the EMC filter module 153, voltage protection module 154, rectifier module 155, and voltage reduction module 156 may also utilize other circuit implementations, and this embodiment is not intended to limit this.

[0089] Among them, the EMC filter module 153 is connected to the power input end and is used to perform EMC filtering on the input signal of the power input end; the voltage protection module 154 is connected to the EMC filter module 153 and is used to perform voltage protection; the rectifier module 155 is connected to the voltage protection module 154 and is used to convert the AC voltage signal of the power input into a high-voltage DC signal.

[0090] In this embodiment, when the fan light is connected to the power supply, the EMC filter module 153 and the voltage protection module 154 can effectively filter out high-frequency noise, ripple and other interference in the power grid, making the power grid pure, and then pass through the rectifier module 155 (such as diode rectification) to convert it into a DC power output.

[0091] In this embodiment, if Figure 8 As shown, the step-down module 156 is connected to the rectifier module 155 and is used to convert the high-voltage DC signal output by the rectifier module 155 into a low-voltage DC signal. The step-down module 156 includes at least a power management IC chip, a MOS transistor high-frequency switch, a transformer, and a rectifier diode module, which are connected in sequence. The step-down module 156 controls the MOS transistor high-frequency switch through the power management IC chip, steps down the high-voltage DC power rectified by the rectifier module 155 through the transformer, and then rectifies the output into low-voltage DC power using diodes. This effectively isolates the front-end high-voltage power grid and improves the safety and stability of the power supply.

[0092] Figure 9 The diagram shows the application control principle block diagram of the fan light controller 150 in the fan light control system 100 based on the trigger signal generated by the pull cord switch according to an embodiment of the present application. Figure 9 As shown, in one implementation of this embodiment, it further includes: a communication module 157 , a WiFi connection control module 158 , a code clearing module 159 and a remote control application interaction module 1510 .

[0093] In this embodiment, the communication module 157 includes a WiFi chip and / or a Bluetooth chip for establishing WiFi communication and / or Bluetooth communication for the fan light to communicate with external devices (such as routers, mobile phones, servers, etc.).

[0094] In this embodiment, the WiFi connection control module 158 detects whether the number of pulls, pull duration, and / or pull time interval of the fan control cord 120 or the light control cord 110 constitutes a first preset operation. If the first preset operation is reached, the WiFi connection control module 158 controls the communication module 157 to enter a WiFi hotspot search or network configuration mode to establish a WiFi network connection. For example, if a single pull duration of the cord is detected to be greater than a preset duration, i.e., a single long pull of the cord, such as a duration greater than 5 seconds, the WiFi connection control module 158 is triggered to enter a WiFi hotspot search or network configuration mode, scanning for surrounding WiFi signals and automatically connecting to a preset network or preset external device.

[0095] In one implementation of this embodiment, the clearing module 159 clears the stored WiFi configuration, user data, and / or pairing information based on a preset operation formed by a combination of at least two of the number of pulls, pull duration, and / or pull time interval of the fan control cord 120 or the light control cord 110. For example, upon detecting a specific pull operation, such as three consecutive rapid pulls, the clearing module 159 clears the WiFi configuration, user data, and pairing information stored within the module.

[0096] In one implementation of this embodiment, the remote control application interaction module 1510 detects whether the number of pulls, pull duration, and / or pull time interval of the fan control cord 120 or the light control cord 110 constitutes a second preset operation. When the second preset operation is formed, the remote control application interaction module 1510 controls the communication module 157 to enter a WiFi hotspot or Bluetooth search or network pairing mode, establishes a WiFi network connection or a Bluetooth network connection with the mobile terminal, exchanges data with the remote control application on the mobile terminal, and adjusts the light and fan of the fan light according to the control instructions received from the remote control application. For example, when a specific sequence of a short pull-pause-short pull is detected, the remote control application interaction module 1510 activates the Bluetooth or WiFi pairing protocol with the mobile phone app, thereby quickly binding the fan light to the mobile phone app and then interacting with the mobile phone app.

[0097] In one implementation of this embodiment, Figure 9 As shown, the fan lamp controller 150 also includes: a monitoring module 1511, which is used to collect the status of the fan motor and the status of the lamp in the fan lamp to monitor the fan motor and the lamp, and can send the monitoring data to the mobile phone APP through a communication connection established with the mobile phone APP.

[0098] Therefore, in this embodiment, the fan light controller 150 can receive relevant instructions sent by a pull rope or a remote control or Bluetooth, WiFi, etc., and output corresponding dynamics of the lamp and motor, such as speed regulation, forward and reverse rotation, dimming and color adjustment, etc., so as to facilitate faster and clearer control of the fan light. At the same time, it can also monitor the speed, current, etc. in real time to accurately obtain the status of the fan light.

[0099] This embodiment also provides a fan light control method based on generating a trigger signal by a pull-cord switch. Figure 10 The flowchart of the fan light control method based on generating a trigger signal by a pull-cord switch according to an embodiment of the present application is shown as follows: Figure 10 As shown, the method includes the following steps S110 to S130.

[0100] S110, pulling the light control cord triggers the light cord trigger circuit to generate a light trigger signal;

[0101] S120, triggering a fan pull cord trigger circuit to generate a fan trigger signal by pulling a fan control pull cord;

[0102] S130: Adjust and control the light of the fan light according to the light triggering signal, and adjust and control the fan of the fan light according to the fan triggering signal.

[0103] It should be noted that there is no specific order in which steps S110 and S120 are executed. Step S110 can be executed first, then step S120, or step S120 can be executed first, then step S110. The order of executing steps S110 and S120 is determined based on the actual control requirements of the fan light.

[0104] In one implementation of this embodiment, adjusting and controlling the light of the fan lamp according to the light trigger signal, and adjusting and controlling the fan of the fan lamp according to the fan trigger signal include: determining the number of times the light control pull cord is pulled, the pulling duration and / or the pulling time interval according to the light trigger signal received from the light pull cord trigger circuit, and adjusting and controlling the color, brightness and / or flashing mode of the lamp in the fan lamp according to the number of times the light control pull cord is pulled, the pulling duration and / or the pulling time interval; determining the number of times the fan control pull cord is pulled, the pulling duration and / or the pulling time interval according to the fan trigger signal received from the fan pull cord trigger circuit, and adjusting and controlling the switch and speed of the fan motor in the fan lamp according to the number of times the fan control pull cord is pulled, the pulling duration and / or the pulling time interval.

[0105] Therefore, in this embodiment, the trigger signal of the pull-cord switch is converted into the corresponding light trigger signal and fan trigger signal of the fan light, thereby realizing the adjustment and control of the light and fan of the fan light, and realizing the functional control of multiple fan lights by simply combining the trigger signals of different pull-cord switches, avoiding the influence of mechanical aging of the fan light, and improving the stability and applicability of the fan light.

[0106] In this embodiment, the implementation principle of the fan light control method based on the pull-cord switch to generate a trigger signal is the same as the implementation principle of the fan light control system based on the pull-cord switch to generate a trigger signal described above. The technical content that is common between the method and the system will not be repeated.

[0107] The fan light control system based on the pull-cord switch to generate a trigger signal described in this embodiment can implement the fan light control method based on the pull-cord switch to generate a trigger signal described in this embodiment, but the implementation device of the fan light control system based on the pull-cord switch to generate a trigger signal described in this application includes but is not limited to the structure of the fan light control system based on the pull-cord switch to generate a trigger signal listed in this embodiment. All structural deformations and replacements of the existing technology made according to the principles of this embodiment are included in the protection scope of this application.

[0108] In the embodiments provided herein, it should be understood that the disclosed circuit devices or methods can be implemented in other ways. For example, the circuit embodiment of the fan light control system based on a pull-cord switch generating a trigger signal is merely illustrative. For example, the division of modules / units is merely a logical functional division. In actual implementation, there may be other division methods, such as multiple modules or units can be combined or integrated into another system, or some features can be ignored or not implemented. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device, module or unit, which can be electrical, mechanical or other forms.

[0109] The modules / units described as separate components may or may not be physically separate, and the components displayed as modules / units may or may not be physical modules, that is, they may be located in one place or distributed across multiple network elements. Some or all of the modules / units may be selected according to actual needs to achieve the purpose of the embodiments of the present application. For example, the functional modules / units in the various embodiments of the present application may be integrated into a processing module, or each module / unit may exist physically separately, or two or more modules / units may be integrated into a single module / unit.

[0110] Those skilled in the art should further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the above description has generally described the composition and steps of each example according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0111] In summary, the present invention converts the trigger signal of a pull-cord switch into corresponding fan light trigger signals and fan trigger signals, thereby adjusting and controlling the fan light and fan. This allows for multiple fan light function controls through a simple combination of different pull-cord switch trigger signals, avoids the effects of mechanical aging on the fan light, and improves the fan light's stability and applicability. Therefore, the present invention effectively overcomes the various shortcomings of the prior art and possesses high industrial application value.

[0112] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical concepts disclosed in this application shall be covered by the claims of this application.

Claims

1. A fan light control system based on a pull-cord switch to generate a trigger signal, characterized in that: At least includes: a light control pull cord, a fan control pull cord, a light pull cord trigger circuit, a fan pull cord trigger circuit and a fan light controller; wherein: The light control pull cord is connected to the light pull cord trigger circuit, and the light control pull cord triggers the light pull cord trigger circuit to generate a light trigger signal by pulling the light control pull cord; The fan control pull rope is connected to the fan pull rope trigger circuit, and the fan control pull rope triggers the fan pull rope trigger circuit to generate a fan trigger signal by pulling the fan control pull rope; The fan light controller is connected to the light pull cord trigger circuit and the fan pull cord trigger circuit respectively, and adjusts and controls the light of the fan light according to the light trigger signal, and adjusts and controls the fan of the fan light according to the fan trigger signal.

2. The fan light control system based on a pull-cord switch generating a trigger signal according to claim 1, characterized in that: The light pull cord trigger circuit includes: A light mechanical switch connected to the light control pull cord, wherein the switch contacts are closed or opened by the displacement generated by pulling the light control pull cord; a first filtering circuit connected to the output end of the light mechanical switch, for filtering the signal at the output end of the light mechanical switch; The first voltage divider circuit is used to perform level conversion on the signal at the output end of the light mechanical switch and output a corresponding light triggering signal.

3. The fan light control system based on generating a trigger signal by a pull-cord switch according to claim 1, characterized in that: The fan pull cord trigger circuit includes: A fan mechanical switch connected to the fan control pull cord, wherein the switch contacts are closed or opened by the displacement generated by pulling the fan control pull cord; a second filtering circuit, connected to the output end of the fan mechanical switch, for filtering the signal at the output end of the fan mechanical switch; The second voltage divider circuit is used to perform level conversion on the signal at the output end of the fan mechanical switch and output a corresponding fan trigger signal.

4. The fan light control system based on a pull-cord switch generating a trigger signal according to claim 1, characterized in that: The fan light controller includes: a light control module, determining the number of times the light control pull cord is pulled, the pulling duration, and / or the pulling time interval according to the light trigger signal received from the light pull cord trigger circuit, and adjusting the color, brightness, and / or flashing mode of the lamp in the fan light according to the number of times the light control pull cord is pulled, the pulling duration, and / or the pulling time interval; The fan control module determines the number of times the fan control pull cord is pulled, the pulling duration and / or the pulling time interval based on the fan trigger signal received from the fan pull cord trigger circuit, and adjusts the switch and speed of the fan motor in the fan lamp according to the number of times the fan control pull cord is pulled, the pulling duration and / or the pulling time interval.

5. The fan light control system based on generating a trigger signal by a pull-cord switch according to claim 4, characterized in that: Also includes: A communication module, including a WiFi chip and / or a Bluetooth chip, for establishing WiFi communication and / or Bluetooth communication; The WiFi connection control module detects whether the number of times the fan control rope or the light control rope is pulled, the pulling duration and / or the pulling time interval form a first preset operation, and when the first preset operation is formed, controls the communication module to enter a WiFi hotspot search or network configuration mode to establish a WiFi network connection.

6. The fan light control system based on generating a trigger signal by a pull-cord switch according to claim 5, characterized in that: The fan light controller also includes: The code clearing module clears the stored WiFi configuration, user data and / or pairing information according to a preset operation formed by a combination of at least two of the number of times the fan control pull cord or the light control pull cord is pulled, the pulling duration and / or the pulling time interval.

7. The fan light control system based on generating a trigger signal by a pull-cord switch according to claim 5, characterized in that: The fan light controller also includes: The remote control application interaction module detects whether the number of times the fan control rope or the light control rope is pulled, the pulling duration and / or the pulling time interval form a second preset operation, and when the second preset operation is formed, controls the communication module to enter the WiFi hotspot or Bluetooth search or network distribution mode, establishes a WiFi network connection or a Bluetooth network connection with the mobile terminal, so as to interact with the remote control application of the mobile terminal for data, and adjusts the light and fan of the fan light according to the control instructions received from the remote control application.

8. The fan light control system based on generating a trigger signal by a pull-cord switch according to claim 1, characterized in that: The fan light controller also includes: An EMC filter module is connected to the power input terminal and is used to perform EMC filtering on the input signal of the power input terminal; A voltage protection module, connected to the EMC filter module, for performing voltage protection; The rectifier module is connected to the voltage protection module and is used to convert the AC voltage signal input by the power supply into a high-voltage DC signal.

9. The fan light control system based on generating a trigger signal by a pull-cord switch according to claim 8, characterized in that: The fan light controller also includes: a step-down module, connected to the rectifier module, for converting the high-voltage DC signal output by the rectifier module into a low-voltage DC signal; the step-down module at least includes a power management IC chip, a MOS tube high-frequency switch, a transformer, and a rectifier diode module connected in sequence.

10. The fan light control system based on generating a trigger signal by a pull-cord switch according to claim 1 or 4, characterized in that: The fan light controller further comprises: The monitoring module is used to collect the status of the fan motor and the status of the lamp in the fan lamp to monitor the fan motor and the lamp.

11. A fan light control method based on generating a trigger signal by a pull-cord switch, characterized in that: include: The light control cord is pulled to trigger the light cord trigger circuit to generate a light trigger signal; The fan control pull cord is pulled to trigger the fan pull cord trigger circuit to generate a fan trigger signal; The light of the fan light is adjusted and controlled according to the light triggering signal, and the fan of the fan light is adjusted and controlled according to the fan triggering signal.

12. The fan light control method based on generating a trigger signal by a pull-cord switch according to claim 11, characterized in that: The step of adjusting and controlling the light of the fan light according to the light trigger signal, and adjusting and controlling the fan of the fan light according to the fan trigger signal includes: Determining the number of times the light control pull cord is pulled, the pulling duration, and / or the pulling time interval according to the light triggering signal received from the light pull cord triggering circuit, and adjusting the color, brightness, and / or flashing mode of the lamp in the fan light according to the number of times the light control pull cord is pulled, the pulling duration, and / or the pulling time interval; The number of times the fan control pull rope is pulled, the pulling duration and / or the pulling time interval are determined according to the fan trigger signal received from the fan pull rope trigger circuit, and the switch and speed of the fan motor in the fan lamp are adjusted and controlled according to the number of times the fan control pull rope is pulled, the pulling duration and / or the pulling time interval.

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