Multifunctional exhaust structure

Abstract

The utility model relates to the technical field of exhaust fans, in particular to a multifunctional exhaust structure which comprises an exhaust fan and a remote controller, the exhaust fan comprises a machine shell and an exhaust assembly arranged in the machine shell, and the exhaust assembly comprises a main control module, a fan, a lamplight module, a humidity detection module and a wireless receiving module. According to the multifunctional exhaust structure, the humidity of the environment can be detected in real time through the humidity detection module, work of the draught fan of the exhaust fan is adjusted through the main control module, the draught fan works according to changes of the humidity of the environment, the multifunctional exhaust structure further has the light adjusting function, illumination can be adjusted according to actual requirements, and the multifunctional exhaust structure is convenient to use. And the practicability is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to exhaust fan technical field especially is a kind of multifunctional exhaust structure. BACKGROUND

[0002] Traditional exhaust fan is mainly used for the circulation and dehumidification of indoor air, and its function is relatively single, usually only has basic exhaust function. In practical application, users often need to install exhaust fan, lamp panel, switch and other types of equipment in indoor at the same time to meet different needs. However, this traditional installation method has the following problems:

[0003] Limited function: traditional exhaust fan can only provide exhaust function, lacks light illumination function or only has simple fixed brightness light, and cannot be adjusted according to the actual needs of users. In addition, traditional exhaust fan does not have the ability to automatically judge the environmental humidity and adjust the dehumidification intensity accordingly, so that the dehumidification function cannot be performed in time.

[0004] Poor user experience: traditional exhaust fan lacks intelligent control and feedback mechanism, and users cannot intuitively understand the working state of the equipment, and the use experience is poor. For example, users must manually turn on or off the exhaust fan, and cannot automatically adjust the working mode according to the change of environment.

[0005] Although there are some improved exhaust fan products, most of them still stay in the primary stage of function expansion, and cannot fundamentally solve the above problems. For example, the intelligent exhaust fan disclosed in patent CN201410337754.6 only has simple remote control and detection function, and cannot realize higher use flexibility, therefore, a more practical exhaust fan needs to be designed. SUMMARY

[0006] The utility model provides a kind of multifunctional exhaust structure to the problems of prior art, can detect the humidity of environment in real time by humidity detection module, and adjusts the fan of exhaust fan by main control module, so that fan works according to the change of environmental humidity, and also has light regulation function, can adjust illumination according to actual demand, and it is more practical.

[0007] In order to solve the above technical problems, the utility model adopts the following technical scheme: a kind of multifunctional exhaust structure, including exhaust fan and remote controller, the exhaust fan includes casing and exhaust assembly installed in casing, the exhaust assembly includes main control module, fan, light module, humidity detection module and wireless receiving module;

[0008] The wireless receiving module is used for receiving a remote control signal of a remote controller and transmitting the remote control signal to the main control module; the main control module controls the opening and closing of the fan according to the remote control signal; the light module comprises a lamp control unit and main light sources, the main light sources are provided in at least two, the lamp control unit is correspondingly provided in at least two, and the color temperatures or colors of different main light sources are different; the control end of the lamp control unit is connected with the main control module, the main control module sends a PWM control signal to the lamp control unit according to the remote control signal of the remote controller, and the lamp control unit adjusts the brightness and color temperature of the main light source according to the PWM control signal; the humidity detection module is used for detecting the environmental humidity and transmitting the detection result to the main control module, and the main control module controls the opening and closing of the fan according to the detection result.

[0009] Preferably, the constant voltage power supply module is further included, the remote controller comprises a power supply processing module, a remote control module and a wireless transmitting module, the power supply processing module is used for converting the power supply of the constant voltage power supply module and outputting a working voltage to the remote control module; the wireless transmitting module is in signal connection with the remote control module and is used for transmitting the control signal of the remote control module; the input end of the lamp control unit is connected with the constant voltage power supply module and is used for converting the power supply voltage of the constant voltage power supply module into the working voltage of the main light source.

[0010] Preferably, the remote control module comprises a remote controller U3, a key unit and an indicator light unit, the key unit is connected with the I / O port of the remote controller U3, and the indicator light unit is connected with the I / O port of the remote controller U3; when the key unit is closed, the indicator light unit is bright, and the remote controller U3 transmits the signal of the key unit through the wireless transmitting module.

[0011] Preferably, the key unit comprises a power key S1, a sleep key S2 and a fan key S5, the indicator light unit comprises a power indicator light LED1, a sleep indicator light LED5 and a fan indicator light LED2, the power key S1, the sleep key S2 and the fan key S5 are respectively connected with three I / O ports of the remote controller U3, and the power indicator light LED1, the sleep indicator light LED5 and the fan indicator light LED2 are respectively connected with the power key S1, the sleep key S2 and the fan key S5 in correspondence; when the power key S1 is closed, the power indicator light LED1 is controlled to be bright by the remote controller U3; when the sleep key S2 is closed, the sleep indicator light LED5 is controlled to be bright by the remote controller U3; and when the fan key S5 is closed, the fan indicator light LED2 is controlled to be bright by the remote controller U3.

[0012] Preferably, the humidity detection module includes a humidity detection sensor U9, a light-emitting diode LED8, and a light-emitting diode LED9. The detection output terminal of the humidity detection sensor U9 is connected to the main control module. Both the light-emitting diode LED8 and the light-emitting diode LED9 are connected to the main control module. The light-emitting diode LED8 and the light-emitting diode LED9 are different colors.

[0013] Preferably, the lamp control unit includes a lamp controller U5, resistors R26 and R29, and an output unit. The output terminal of the constant voltage power supply module is connected to the power supply terminal of the lamp controller U5 through resistor R26. The output terminal of the lamp controller U5 is connected to the power supply terminal of the main light source through the output unit and is used to supply power to the main light source. The main control module is connected to the control terminal of the lamp controller U5 through resistor R29. The main control module is used to provide PWM control signals to the lamp controller U5 to control the brightness and color temperature of the main light source.

[0014] Preferably, the fan includes a motor, a switching transistor Q2, and a relay K1. The output terminal of the main control module is connected to the control terminal of the switching transistor Q2. One switching terminal of the switching transistor Q2 is grounded, and the other switching terminal of the switching transistor Q2 is connected to one electromagnetic control terminal of the relay K1. The other electromagnetic control terminal of the relay K1 is connected to the constant voltage power supply module. The switching terminal of the relay K1 is used to control the opening and closing of the motor.

[0015] Preferably, the power supply processing module includes an input rectifier unit, an input filter unit, a voltage regulator U1, and an output filter unit. The input terminal of the input rectifier unit is connected to the constant voltage power supply module. The output terminal of the input rectifier unit is filtered by the input filter unit and then input to the voltage regulator U1. The output terminal of the voltage regulator U1 outputs the power supply voltage after passing through the output filter unit.

[0016] Preferably, the chip model of the wireless transmitting module is GH445, and the chip model of the wireless receiving module is HG710.

[0017] Preferably, the main control module is model GH8RF005 and the remote controller U3 is model GH8RF020.

[0018] The beneficial effects of this utility model are:

[0019] 1. By integrating functions such as exhaust, lighting, humidity sensing, and automatic dehumidification into one device, the number of devices to be installed is reduced, the installation process is simplified, and space is saved. Users no longer need to install multiple independent devices separately, which reduces construction difficulty and cost.

[0020] 2. It can automatically start or stop the dehumidification function according to the indoor humidity to ensure that the indoor humidity environment is always maintained.

[0021] 3. The user can freely adjust the brightness and color temperature of the light through the remote control, adapt to different use scenarios and needs, can select higher brightness and cold color, and can lower the brightness and switch to warm color when resting, to provide a more comfortable lighting environment. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The signal block diagram of the utility model;

[0023] Figure 2 The circuit principle diagram of the remote control module of the utility model;

[0024] Figure 3 The circuit principle diagram of the power supply processing module of the utility model;

[0025] Figure 4 The circuit principle diagram of the wireless transmitting module of the utility model;

[0026] Figure 5 The circuit principle diagram of the main control module of the utility model;

[0027] Figure 6 The circuit principle diagram of the wireless receiving module of the utility model;

[0028] Figure 7 The circuit principle diagram of the humidity detection module of the utility model;

[0029] Figure 8 The circuit principle diagram of the fan of the utility model;

[0030] Figure 9 The circuit principle diagram of the power conversion unit of the utility model;

[0031] Figure 10 The circuit principle diagram of the light module of the utility model;

[0032] Figure 11 The structure diagram of the exhaust fan of the utility model Figure 1 ;

[0033] Figure 12 The structure diagram of the exhaust fan of the utility model Figure 2 .

[0034] The reference signs in the drawings include: Figures 1 to 12

[0035] ​1 - exhaust fan, 2 - remote controller, 3 - constant voltage power module, 4 - remote control module, 5 - wireless transmission module, 6 - power supply processing module, 7 - fan, 8 - main control module, 9 - wireless receiving module, 10 - humidity detection module, 11 - key unit, 12 - indicator light unit, 13 - input rectifier unit, 14 - input filter unit, 15 - output filter unit, 16 - light module, 17 - main light source, 18 - lamp control unit, 19 - output unit, 20 - casing. DETAILED DESCRIPTION

[0036] For the convenience of those skilled in the art, the present application is further described below in conjunction with the embodiments and the accompanying drawings. The content mentioned in the embodiments is not a limitation of the present application. The present application is described in detail below in conjunction with the accompanying drawings.

[0037] The multifunctional exhaust structure provided in the embodiment comprises an exhaust fan 1 and a remote controller 2. Figures 1 to 12 The exhaust fan 1 comprises a casing 20 and an exhaust assembly arranged in the casing. The exhaust assembly comprises a main control module 8, a fan 7, a light module 16, a humidity detection module 10 and a wireless receiving module 9. The model of the main control module 8 can be GH8RF005.

[0038] The wireless receiving module 9 is used to receive the remote control signal of the remote controller 2 and transmit the remote control signal to the main control module 8. The main control module 8 controls the opening and closing of the fan 7 according to the remote control signal. The light module 16 comprises a lamp control unit 18 and a main light source 17. The main light source 17 is provided with at least two, and the lamp control unit 18 is correspondingly provided with at least two. The color temperature or color of different main light sources 17 is different. The control end of the lamp control unit 18 is connected with the main control module 8. The main control module 8 sends a PWM control signal to the lamp control unit according to the remote control signal of the remote controller 2. The lamp control unit 18 adjusts the brightness and color temperature of the main light source 17 according to the PWM control signal. The humidity detection module 10 is used to detect the environmental humidity and transmit the detection result to the main control module 8. The main control module 8 controls the opening and closing of the fan 7 according to the detection result.

[0039] Specifically, the exhaust fan 1 has more functions by integrating the exhaust, lighting and humidity detection functions. Firstly, the humidity detection module 10 can detect the ambient humidity in real time, so that the exhaust fan can be started in time to maintain the indoor ambient humidity. When the detected humidity value exceeds the set threshold, the main control module 8 starts the fan 7. When the detected humidity value is lower than the set threshold, the main control module 8 stops the fan 7, thereby avoiding waste of power resources and reducing mechanical loss caused by long-time operation of the exhaust fan 1. Further, the embodiment also has a lighting function. The light module 16 is provided with a plurality of main light sources 17. By setting different colors, color temperatures and numbers of the main light sources 17, the brightness, color temperature and mode of the lighting can be adjusted according to actual needs. The embodiment does not have any limitation. The user can control the lighting of the light through the corresponding keys on the remote controller 2, which is convenient and flexible.

[0040] The embodiment also includes a constant voltage power supply module 3. The constant voltage power supply module 3 is a 20V constant voltage power supply. The remote controller 2 includes a power supply processing module 6, a remote control module 4 and a wireless transmission module 5. The power supply processing module 6 is used to convert the power supply of the constant voltage power supply module 3 and output the working voltage to the remote control module 4. The wireless transmission module 5 is in signal connection with the remote control module 4 and is used to transmit the control signal of the remote control module 4. The input end of the light control unit 18 is connected with the constant voltage power supply module 3 and is used to convert the power supply voltage of the constant voltage power supply module 3 into the working voltage of the main light source 17.

[0041] Specifically, as shown in Figure 1 The exhaust fan 1 of the embodiment can perform exhaust work according to the change of the ambient humidity, which has high intelligence. The humidity detection module 10 detects the ambient humidity and transmits the detection signal to the main control module 8. The main control module 8 can set a humidity threshold. When the ambient humidity detected by the humidity detection module 10 exceeds the threshold, the main control module 8 controls the fan 7 to start and perform exhaust work. When the detected ambient humidity is lower than the set threshold, the main control module 8 does not start the fan 7. Therefore, the user does not need to control the operation of the exhaust fan 1, which is more convenient to use and avoids unnecessary running time, thereby saving power and reducing energy consumption. It also ensures that the humidity is removed in time when the humidity is high, prevents the growth of mold and bacteria, helps to maintain the indoor air fresh and provides a healthy living environment. The humidity detection module includes a humidity detection sensor U9, a light-emitting diode LED 8 and a light-emitting diode LED 9. The detection output end of the humidity detection sensor U9 is connected with the main control module. The light-emitting diode LED 8 and the light-emitting diode LED 9 are both connected with the main control module. The colors of the light-emitting diode LED 8 and the light-emitting diode LED 9 are different. The specific connection mode is as shown inFigure 7 As shown, humidity detection is performed by the humidity detection sensor U9, and transmitted to the main control module through the SDA and SCL data lines. The light-emitting diode LED 8 and the light-emitting diode LED 9 can be used to prompt the state of humidity detection, such as detection or no detection, which can be set according to actual needs.

[0042] As shown in the Figure 10 , the embodiment sets the light module 16, integrates the lighting function with the exhaust function, makes the function of the exhaust fan 1 more abundant, and better meets the needs of users. As shown in the Figure 1 and Figure 10 , the main light source 17 of the light module 16 of the embodiment can be provided with one or more, and the color temperature of different main light sources 17 can be different, and can be provided with multiple light modes, such as ordinary lighting, night light lighting, RGB lighting mode, etc. The number and type of main light sources 17 can be set according to actual needs. As shown, when lighting is needed, the corresponding lighting switch signal can be sent to the main control module 8 of the exhaust fan 1 through the remote controller 2, and the main control module 8 can start the main light source 17 of the light module 16 according to the remote control signal, to realize the lighting function. When there are multiple main light sources 17, the required lighting mode can be selected through the remote control signal, such as selecting the color temperature of lighting, white light or warm light, or selecting RGB lighting. The main control module 8 can realize the selection of the lighting mode of the main light source 17 by sending a PWM control signal. The embodiment has flexible control, multiple light control modules, can meet the needs of more users, adapt to different use scenarios and needs, and can select high brightness and cold color.

[0043] As shown in the Figure 10 , the lamp control unit 18 includes a lamp controller U5, a resistor R26, a resistor R29, and an output unit 19. The output end of the constant voltage power supply module 3 is connected to the power supply end of the lamp controller U5 through the resistor R26. The output end of the lamp controller U5 is connected to the power supply end of the main light source 17 through the output unit 19, and is used to supply power to the main light source 17. The connection principle of the output unit 19 is shown in the Figure 10 , the output voltage is processed by the conduction of the diode and the processing of the inductance current voltage signal; the main control module 8 is connected to the control end of the lamp controller U5 through the resistor R29, and the main control module 8 is used to provide the lamp controller U5 with a PWM control signal to control the brightness and color temperature of the main light source 17.

[0044] Specifically, as shown in the Figure 10The main light source 17 includes a light emitting diode W1 and a light emitting diode Y1, and the colors of the two main light sources 17 can be different, such as a warm light and a cold light. In operation, the pin 14 and the pin 15 of the main control module 8 respectively send PWM2 and PWM1 signals to control whether the 20V voltage is converted and supplied to the two main light sources 17 and the supply mode, thereby controlling the working mode of the two main light sources 17, such as one bright, one not bright, or both bright, or alternating light, etc. The lamp controller U5 and the lamp controller U8 both use the chip of the controller GH733 to realize the processing control of the signals.

[0045] Further, the exhaust fan 1 can be freely controlled by the remote controller 2, such as Figure 3 As shown, the power supply processing module 6 of the remote controller 2 includes an input rectifier unit 13, an input filter unit 14, a voltage stabilizer U1, and an output filter unit 15. The input end of the input rectifier unit 13 is connected with the constant voltage power supply module 3. The output end of the input rectifier unit 13 is input to the voltage stabilizer U1 after the filtering action of the input filter unit 14. The output end of the voltage stabilizer U1 is output after the output filter unit 15. As shown, Figure 2 As shown, the remote control module 4 of the remote controller 2 includes a remote control controller U3, a key unit 11, and an indicator light unit 12. The model of the remote control controller U3 can be selected as GH8RF020. The key unit 11 is connected with the I / O port of the remote control controller U3. The indicator light unit 12 is connected with the I / O port of the remote control controller U3. When the key unit 11 is closed, the indicator light unit 12 is bright, and the remote control controller U3 sends the signal of the key unit 11 through the wireless transmission module 5. The key unit 11 includes a power key S1, a sleep key S2, and a fan 7 key. The indicator light unit 12 includes a power indicator light LED1, a sleep indicator light LED5, and a fan 7 indicator light. The power key S1, the sleep key S2, and the fan 7 key are respectively connected with the three I / O ports of the remote control controller U3. The power indicator light LED1, the sleep indicator light LED5, and the fan 7 indicator light are respectively connected and arranged corresponding to the power key S1, the sleep key S2, and the fan 7 key. The specific connection mode is as shown, Figure 2 As shown, when the power key S1 is closed, the power indicator light LED1 is controlled to be bright by the remote control controller U3. When the sleep key S2 is closed, the sleep indicator light LED5 is controlled to be bright by the remote control controller U3. When the fan 7 key is closed, the fan 7 indicator light is controlled to be bright by the remote control controller U3.

[0046] Specifically, the remote controller 2 of the embodiment adopts a 433 radio frequency link mode, the chip model of the wireless transmitting module 5 is GH445, the chip model of the wireless receiving module 9 is HG710, and the circuit principles of the wireless transmitting module 5 and the wireless receiving module 9 are as shown in Figure 4 and Figure 6 When the power button S1 is closed, the remote controller U3 receives the signal of the power button S1 being closed, then controls the power indicator lamp LED1 to light, and transmits the signal to the wireless receiving module 9 through the wireless transmitting module 5, the wireless receiving module 9 transmits the received signal to the main control module 8, and the main control module 8 works according to the received signal, such as turning on the power, making the fan 7 enter the sleep state, or turning on the fan 7 and performing the exhaust work when the fan 7 button is closed.

[0047] The circuit principle diagram of the main control module 8 and the fan 7 of the embodiment is as shown in Figure 5 and Figure 8 The fan 7 includes a motor, a switching tube Q2 and a relay K1, the output end of the main control module 8 is connected with the control end of the switching tube Q2, one switching end of the switching tube Q2 is grounded, the other switching end of the switching tube Q2 is connected with one electromagnetic control end of the relay K1, the other electromagnetic control end of the relay K1 is connected with the constant voltage power module 3, and the switching end of the relay K1 is used for controlling the opening and closing of the motor, and the specific connection mode is as shown in Figure 5 Specifically, when the main control module 8 receives the signal of turning on the fan 7, a signal is provided to the switching tube Q2 to make the switching tube Q2 conductive, and then the relay K1 is closed to make the motor start working, and then the fan starts working to exhaust.

[0048] The specific working principle of the embodiment is as follows:

[0049] 1. The 20v constant voltage power supply is used for supplying power for the remote controller 2 and the exhaust fan 1, the power supply processing module 6 of the remote controller 2 converts the power supply processing into 12v and 3.3v working voltage to supply power for other devices of the remote controller 2, and similarly, the 20v voltage is converted into 5v working voltage by the power supply conversion unit as shown in Figure 9 to supply power for the devices of the exhaust fan 1.

[0050] 2、This embodiment has two working modes, one is passive exhaust, that is, under the control of the remote controller 2, the exhaust fan 1 works, such as the fan 7 button of the remote controller 2 is pressed, the exhaust fan 1 starts to work, the fan 7 button is disconnected, the exhaust fan 1 stops working, the main power switch is disconnected, the remote controller 2 and the exhaust fan 1 stop working, etc. The working of the exhaust fan 1 can be adjusted according to the actual demand, the button unit 11 of the remote controller 2 can be further provided with more buttons, which can be set according to the actual demand, and the embodiment is not limited. The second is that the exhaust fan 1 actively works, the humidity detection button of the remote controller 2 is set to start the humidity detection work, so that the humidity detection module 10 starts to work, the humidity detection module 10 detects the environmental temperature in real time, and transmits the detection result to the main control module 8, for example, if the detected humidity is greater than or equal to 70% Rh, the exhaust function is automatically started; otherwise, when the humidity is less than 50% Rh, the exhaust fan 1 is automatically stopped. The humidity detection button is disconnected, and the automatic dehumidification function is closed. Further, the indication lamp unit 12 can also be used to prompt the working state: when the automatic dehumidification function is started, the blue indication lamp can be set to be turned on for 2s and turned off for 2s (detection state), when the detected humidity is greater than or equal to 70% Rh, the blue indication lamp is turned on, when the detected humidity is less than or equal to 50% Rh, the blue indication lamp returns to the detection state and flashes, and the working mode of the indication lamp unit 12 can be adjusted according to the actual demand, which is not limited here.

[0051] 3、This embodiment has a light illumination function, the light illumination mode can be adjusted through the remote controller, or the light module can be controlled to turn on and off through the main switch, and then the mode is adjusted through the remote controller. The use mode is flexible, and different demands of users can be met.

[0052] In this embodiment, the ambient humidity is monitored in real time by the humidity detection module 10, and then the main control module 8 can control the opening or closing of the exhaust fan 1 according to the actual needs, avoiding unnecessary running time, thereby saving electric energy and reducing energy consumption; ensuring timely moisture removal when the humidity is high, preventing the growth of mold and bacteria, and helping to maintain fresh indoor air and provide a healthy living environment; by installing a light module in the exhaust fan and realizing the function of remote control of light brightness, color temperature and multiple light modes, flexible lighting control is realized, and users can freely adjust the brightness and color temperature of the light through the remote control, adapting to different use scenarios and needs, and can choose higher brightness and cold color, and when resting, the brightness can be adjusted lower and switched to warm color, providing a more comfortable lighting environment; Furthermore, the exhaust and lighting functions are integrated into one device, reducing the need to install multiple independent devices and simplifying the installation process, construction personnel only need to install one device, reducing wiring complexity and installation cost, and since all functions are concentrated in the same device, the number of wires required is greatly reduced, avoiding the complex wire management and potential safety hazards in traditional installation methods; and compared with the traditional exhaust fan and lamp panel which need to occupy different positions on the ceiling or wall respectively, the embodiment effectively saves indoor space, making the room layout more simple and beautiful. In addition, it can also reduce the unnecessary working time of the exhaust fan 1, reduce the mechanical wear and tear, thereby prolonging the service life of the device and reducing the maintenance cost; Furthermore, the remote control 2 provides additional convenience, allowing users to adjust the working mode of the exhaust fan 1 according to personal needs, with higher control flexibility and stronger practicality.

[0053] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application is disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the present application, and any simple modification, equivalent change and modification of the above embodiment within the scope of the present application are all within the scope of the present application.

Claims

1. A multi-functional exhaust structure characterized by: The exhaust fan comprises a casing and an exhaust assembly arranged in the casing, and the exhaust assembly comprises a main control module, a fan, a light module, a humidity detection module and a wireless receiving module. The wireless receiving module is used for receiving a remote control signal of the remote controller and transmitting the remote control signal to the main control module; and the main control module controls the opening and closing of the fan according to the remote control signal. The light module comprises a lamp control unit and main light sources, the main light sources are provided with at least two, the lamp control unit is correspondingly provided with at least two, the color temperature or color of different main light sources is different; the control end of the lamp control unit is connected with the main control module, the main control module sends a PWM control signal to the lamp control unit according to the remote control signal of the remote controller, and the lamp control unit adjusts the brightness and color temperature of the main light source according to the PWM control signal. The humidity detection module is used for detecting the environmental humidity and transmitting the detection result to the main control module, and the main control module controls the opening and closing of the fan according to the detection result.

2. The multifunctional exhaust structure according to claim 1, characterized by: The remote controller comprises a power supply processing module, a remote control module and a wireless transmitting module, the power supply processing module is used for converting the power supply of the constant-voltage power supply module and outputting a working voltage to the remote control module; the wireless transmitting module is signal-connected with the remote control module and is used for transmitting the control signal of the remote control module; the input end of the lamp control unit is connected with the constant-voltage power supply module and is used for converting the power supply voltage of the constant-voltage power supply module into the working voltage of the main light source.

3. The multi-functional exhaust structure according to claim 2, characterized by: The remote control module comprises a remote controller U3, a key unit and an indicator light unit, the key unit is connected with the I / O port of the remote controller U3, and the indicator light unit is connected with the I / O port of the remote controller U3; when the key unit is closed, the indicator light unit is bright, and the remote controller U3 transmits the signal of the key unit through the wireless transmitting module.

4. The multi-functional exhaust structure according to claim 3, characterized by: The key unit comprises a power key S1, a sleep key S2 and a fan key S5, the indicator light unit comprises a power indicator light LED1, a sleep indicator light LED5 and a fan indicator light LED2, the power key S1, the sleep key S2 and the fan key S5 are respectively connected with three I / O ports of the remote controller U3, and the power indicator light LED1, the sleep indicator light LED5 and the fan indicator light LED2 are respectively connected with the power key S1, the sleep key S2 and the fan key S5; when the power key S1 is closed, the power indicator light LED1 is bright through the remote controller U3; when the sleep key S2 is closed, the sleep indicator light LED5 is bright through the remote controller U3; and when the fan key S5 is closed, the fan indicator light LED2 is bright through the remote controller U3.

5. The multi-functional exhaust structure according to claim 1, characterized by: The humidity detection module comprises a humidity detection sensor U9, a light emitting diode LED 8 and a light emitting diode LED 9, the detection output end of the humidity detection sensor U9 is connected with the main control module, the light emitting diode LED 8 and the light emitting diode LED 9 are both connected with the main control module, and the color of the light emitting diode LED 8 is different from that of the light emitting diode LED 9.

6. The multi-functional exhaust structure according to claim 2, characterized by: The lamp control unit comprises a lamp controller U5, a resistor R26, a resistor R29 and an output unit, the output end of the constant-voltage power supply module is connected with the power supply end of the lamp controller U5 through the resistor R26, the output end of the lamp controller U5 is connected with the power supply end of the main light source through the output unit and is used for supplying power for the main light source, the main control module is connected with the control end of the lamp controller U5 through the resistor R29, and the main control module is used for providing a PWM control signal for the lamp controller U5 so as to control the brightness and color temperature of the main light source.

7. The multi-functional exhaust structure according to claim 1, characterized by: The fan comprises a motor, a switching tube Q2 and a relay K1, the output end of the main control module is connected with the control end of the switching tube Q2, one switching end of the switching tube Q2 is grounded, the other switching end of the switching tube Q2 is connected with one electromagnetic control end of the relay K1, the other electromagnetic control end of the relay K1 is connected with the constant-voltage power supply module, and the switching end of the relay K1 is used for controlling the opening and closing of the motor.

8. The multi-functional exhaust structure according to claim 2, characterized by: The power supply processing module comprises an input rectification unit, an input filtering unit, a voltage stabilizer U1 and an output filtering unit, the input end of the input rectification unit is connected with the constant-voltage power supply module, the output end of the input rectification unit is input to the voltage stabilizer U1 after the filtering action of the input filtering unit, and the output end of the voltage stabilizer U1 is output after the output filtering unit.

9. The multi-functional exhaust structure according to claim 2, characterized by: The chip model of the wireless transmission module is GH445, and the chip model of the wireless receiving module is HG710.

10. The multi-functional exhaust structure according to claim 3, characterized by: The model of the main control module is GH8RF005, and the model of the remote controller U3 is GH8RF020.

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