CN111927830A - Fan assembly, range hood, control method for range hood - Google Patents

Abstract

The invention provides a fan assembly, a range hood, and a control method for the range hood. The fan assembly includes a driving part; a wind wheel, the driving part is connected with the wind wheel, and the driving part is used to drive the wind wheel to rotate; a cooling device, the cooling device is connected with the driving part, and the cooling device has a water inlet system and a water outlet system, and the external cooling After the water flows into the cooling device through the water inlet system and exchanges heat with the driving part, the cooling water after the heat exchange turns into hot water and is discharged out of the cooling device through the water outlet system to reduce the temperature of the driving part. The safety of the fan assembly is improved. The range hood with the fan assembly is always operated in a safe working environment, which ensures the reliability of the range hood and improves the efficiency of the range hood.

Description

Fan assembly, range hood, control method for range hood

technical field

The invention relates to the technical field of range hood equipment, in particular to a fan assembly, a range hood, and a control method for a range hood.

Background technique

In the range hood used in the prior art, when the range hood runs for a long time (such as making soup or used for other special purposes) or the weather temperature is too high, it is easy to cause the motor temperature to rise too high, affecting the service life and performance of the motor, It will also affect the safety of use, and if it is serious, it will cause the line to burn and cause a fire. At present, after the range hood on the market has been used for a certain period of time, the wind wheel will accumulate oil stains, which will be difficult to clean, which will affect the performance of the range hood. The problem.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide a fan assembly, a range hood, and a control method for a range hood, so as to solve the problem of low efficiency of the range hood in the prior art.

In order to achieve the above object, according to an aspect of the present invention, a fan assembly is provided, comprising: a driving part; a wind wheel, the driving part is connected with the wind wheel, and the driving part is used for driving the wind wheel to rotate; a cooling device, the cooling device is connected to the wind wheel; The driving part is connected, and the cooling device has a water inlet system and a water outlet system. The cooling water from the outside flows into the cooling device through the water inlet system and exchanges heat with the driving part. The water outlet system drains out of the cooling unit.

Further, the cooling device includes: a water storage box, the water storage box has a water inlet and a water outlet, the water outlet system is arranged at the water outlet, the water inlet system includes a water inlet valve, the water inlet valve is connected with the water storage box, and the water inlet valve is used for When the water inlet is opened or closed, when the water inlet is in the open position, the cooling water from the outside flows into the water storage box through the water inlet and exchanges heat with the driving part, and the cooling water after heat exchange is discharged out of the cooling device through the water outlet system. .

Further, the water inlet valve is provided with an air inlet hole and an air outlet hole, when the water storage box stores water, the air outlet hole exhausts air, and when the water storage box discharges water, the air inlet hole takes in air.

Further, the fan assembly further includes: a central control module; a first detection module, the first detection module is used to detect whether the cooling water in the water storage box is filled to the first preset position, and the central control module is used to receive the first detection module. information of a detection module; a first sensor control module, the first sensor control module controls the opening or closing of the air intake hole and the exhaust hole, and controls the opening of the water inlet valve according to the information of the first detection module received by the central control module or close the water inlet.

Further, the water outlet system includes: a water outlet valve, which is arranged at the water outlet, and the water outlet valve includes a first water outlet pipe, and the first water outlet pipe is used to discharge the water in the water storage box out of the water storage box, wherein the water outlet valve is used for It is used to control the conduction or closure of the first water outlet pipe and the water outlet.

Further, the water outlet valve also includes a second water outlet pipe, the first end of the second water outlet pipe is selectively connected to the water outlet through the water outlet valve, and the second end of the second water outlet pipe is arranged towards the side of the wind wheel, The second water outlet pipe is used to drain the cooling water in the water storage box to the wind wheel to clean the wind wheel, and the water outlet valve is used to control the conduction or closure of the second water outlet pipe and the water outlet.

Further, the fan assembly further includes: a central control module; a second detection module, which is used to detect the temperature information of the driving part; a data receiving module, which is used to receive the temperature information detected by the second detection module, The central control module controls the water inlet valve to open or close the water inlet and the water outlet system to open or close the water outlet according to the temperature information sent by the data receiving module.

Further, the water outlet system includes a second sensor control module, the first water outlet pipe and the second water outlet pipe are arranged in parallel, the second sensor control module controls the water outlet valve to independently control the conduction or closure of the first water outlet pipe, and the water outlet valve Independently control the conduction or closure of the second water outlet pipe.

Further, the driving part is a motor, the casing of the motor is provided with an annular groove, the inner wall of the annular groove is provided with an inner thread, and at least part of the outer peripheral surface of the water storage box is provided with an outer thread matched with the inner thread.

Further, the fan assembly further includes: an annular sealing ring, and the annular sealing ring is arranged at the bottom of the annular groove.

According to another aspect of the present invention, a range hood is provided, including a fan assembly, and the fan assembly is the above-mentioned fan assembly.

According to another aspect of the present invention, a method for controlling a range hood is provided. The method is used to control the above range hood. The method includes the following steps: a first sensing control module receives control information from a central control module, and controls The water valve opens the water inlet, air inlet and exhaust hole, so that the external water source enters the water storage box; the first detection module periodically detects whether the water in the water storage box is full. When it is full, the first sensing control module controls the water inlet valve to close the water inlet. If the water in the water storage box is not full, the water inlet valve continues to open the water inlet to feed water into the water storage box; the second detection module cycle When the temperature of the cooling water in the water storage box is greater than or equal to the preset value, the second sensing control module controls the water outlet valve to open the first water outlet pipe, so that the water storage The water in the box flows out of the water storage box.

Further, the range hood also includes a direct shutdown module; when the direct shutdown module is triggered to start, the central control module closes the water inlet through the first sensing control module, and after the second detection module detects that the water in the water storage box is finished, the first A sensing control module controls the first water outlet pipe and the second water outlet pipe to be closed; after the central control module controls the air intake hole and the exhaust hole to be closed, the central control module controls the range hood to be closed.

Further, the range hood further includes a delayed shutdown module; when the delayed shutdown module is triggered to operate, the first sensing control module controls the water inlet valve to open the water inlet, and the second sensing control module controls the water outlet valve to open the second water outlet pipe. , and the second sensing control module controls the water outlet valve to close the first water outlet pipe; when the central control module determines that the operation time of the delayed shutdown module is greater than or equal to the preset value, the central control module controls the range hood to trigger the direct shutdown module to operate to shut down grease pump.

Further, the range hood further includes a cleaning module; when the cleaning module operation is triggered, the first sensing control module controls the water inlet valve to open the water inlet, the second sensing control module controls the water outlet valve to open the second water outlet pipe, and the second sensor control module controls the water outlet valve to open the second water outlet pipe. The sensing control module controls the water outlet valve to close the first water outlet pipe; when the cleaning module is triggered to stop working, the central control module controls the range hood to trigger the direct shutdown module to turn off the range hood.

By applying the technical solution of the present invention, by setting the cooling device, the external water source can be used to cool the driving part, which effectively avoids the problem of shortening the service life of the fan assembly caused by high temperature generated by the long-term operation of the drive, and at the same time improves the safety of the fan assembly sex. The range hood with the fan assembly is always operated in a safe working environment, which ensures the reliability of the range hood and improves the efficiency of the range hood.

Description of drawings

The accompanying drawings forming a part of the present application are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

Fig. 1 shows a schematic diagram of an exploded structure of an embodiment of a fan assembly according to the present invention;

Fig. 2 shows a schematic structural diagram of the first embodiment of the fan assembly according to the present invention;

FIG. 3 shows a schematic structural diagram of a second embodiment of the fan assembly according to the present invention;

Fig. 4 shows the A-A sectional structure schematic diagram in Fig. 3;

FIG. 5 shows a schematic structural diagram of an embodiment in which the water storage box is assembled with the motor housing;

Fig. 6 shows a logic block diagram of an embodiment of a control method for a range hood according to the present invention.

Wherein, the above-mentioned drawings include the following reference signs:

10. Drive part; 11. Ring groove;

20. Wind wheel;

30, cooling device; 31, water storage box; 311, water inlet; 312, water outlet;

32. Water inlet valve;

33, outlet valve; 331, first outlet pipe; 332, second outlet pipe;

40. Annular sealing ring.

Detailed ways

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and/or combinations thereof.

It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein can, for example, be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices.

Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those of ordinary skill in the art, and in the accompanying drawings, which may be exaggerated for the sake of clarity The thicknesses of layers and regions are described, and the same reference numerals are used to denote the same devices, and thus their descriptions will be omitted.

1 to 6, according to a specific embodiment of the present invention, a fan assembly is provided.

Specifically, the fan assembly includes a driving part 10 , a wind wheel 20 and a cooling device 30 . The driving part 10 is connected with the wind wheel 20 , and the driving part 10 is used for driving the wind wheel 20 to rotate. The cooling device 30 is connected to the drive unit 10 . The cooling device 30 has a water inlet system and a water outlet system. The cooling water from the outside flows into the cooling device 30 through the water inlet system and exchanges heat with the driving part 10. After the cooling water after heat exchange becomes hot water, it passes through the water outlet system. It is discharged out of the cooling device 30 to reduce the temperature of the driving part 10 .

In this embodiment, by setting the cooling device, the external water source can be used to cool down the driving part, which effectively avoids the problem of shortening the service life of the fan assembly due to high temperature caused by the long-term operation of the drive, and at the same time improves the safety of the fan assembly . The range hood with the fan assembly is always operated in a safe working environment, which ensures the reliability of the range hood and improves the efficiency of the range hood.

As shown in FIG. 1 , the cooling device 30 includes a water storage box 31 . The water storage box 31 has a water inlet 311 and a water outlet 312 , the water outlet system is arranged at the water outlet 312 , and the water inlet system includes a water inlet valve 32 . The water inlet valve 32 is connected to the water storage box 31 . The water inlet valve 32 is used to open or close the water inlet 311. When the water inlet 311 is in the open position, the external cooling water flows into the water storage box 31 through the water inlet 311 and exchanges heat with the driving part 10. The cooling water is discharged out of the cooling device 30 through the water outlet system.

In order to make the water flow into and out of the water storage box 31 smoothly, the water inlet valve 32 is provided with an air intake hole and an exhaust hole. Air intake vent.

Further, the fan assembly further includes a central control module, a first detection module and a first sensor control module. The first detection module is used to detect whether the cooling water in the water storage box 31 is filled to the first preset position. The central control module is used for receiving the information of the first detection module. The first sensing control module controls the opening or closing of the air inlet and the air outlet, and controls the water inlet valve 32 to open or close the water inlet 311 according to the information received by the central control module from the first detection module.

The water outlet system includes a water outlet valve 33 . The water outlet valve 33 is arranged at the water outlet 312, and the water outlet valve 33 includes a first water outlet pipe 331. The first water outlet pipe 331 is used to discharge the water in the water storage box 31 out of the water storage box 31, wherein the water outlet valve 33 is used to control the The first water outlet pipe 331 is connected or closed with the water outlet 312 . In this way, the temperature of the driving part can be controlled by controlling the closing or opening of the water inlet 311 and the first water outlet pipe 331, which effectively improves the practicability and reliability of the fan assembly.

The water outlet valve 33 further includes a second water outlet pipe 332 . The first end of the second water outlet pipe 332 is selectively communicated with the water outlet 312 through the water outlet valve 33 . The second end of the second water outlet pipe 332 is disposed toward the side of the wind wheel 20. The second water outlet pipe 332 is used to divert the cooling water in the water storage box 31 to the wind wheel 20, so as to clean the wind wheel 20 and discharge water. The valve 33 is used to control the conduction or closure of the second water outlet pipe 332 and the water outlet 312 . Among them, as shown in FIG. 1 , the first water outlet pipe 331 can be set as a straight pipe, and the second water outlet pipe 332 can be set as a curved pipe. In the embodiment shown in FIG. 6 , the straight water outlet is straight The outlet of the pipe, and the outlet of the bend is the outlet of the bend.

Further, the fan assembly further includes a second detection module, a data receiving module and a second sensor control module. The second detection module is used to detect the temperature information of the driving part 10 . The data receiving module is used to receive the temperature information detected by the second detection module, and the central control module controls the water inlet valve 32 to open or close the water inlet 311 according to the temperature information sent by the data receiving module, and controls the water outlet valve 33 in the water outlet system to open Or close the water outlet 312. The first water outlet pipe 331 and the second water outlet pipe 332 are arranged in parallel, the second sensing control module controls the water outlet valve 33 to independently control the conduction or closing of the first water outlet pipe 331, and the water outlet valve 33 independently controls the second water outlet pipe 332 on or off. This arrangement can further improve the reliability of the fan assembly.

In this embodiment, the driving part 10 is a motor. As shown in FIG. 5 , the casing of the motor is provided with an annular groove 11 , the inner wall of the annular groove 11 is provided with an internal thread, and at least part of the outer peripheral surface of the water storage box 31 is provided with an external thread matched with the internal thread .

In order to improve the sealing between the water storage box 31 and the motor, the fan assembly is further provided with an annular sealing ring 40 , and the annular sealing ring 40 is arranged at the bottom of the annular groove 11 .

The fan assembly in the above embodiment can also be used in the technical field of range hood equipment, that is, according to another aspect of the present invention, a range hood is provided, which includes a fan assembly, and the fan assembly is the fan assembly in the above embodiment.

According to another aspect of the present invention, a method for controlling a range hood is provided. The method is used to control the range hood in the above embodiment, and the method includes the following steps: a first sensing control module receives control information from a central control module , control the water inlet valve 32 to open the water inlet 311, the air inlet hole and the exhaust hole, so that the external water source enters the water storage box 31; the first detection module periodically detects whether the water in the water storage box 31 is full, if When the water in the water storage box 31 is full, the first sensing control module controls the water inlet valve 32 to close the water inlet 311. If the water in the water storage box 31 is not full, the water inlet valve 32 continues to open the water inlet 311 to Water is fed into the water storage box 31; the second detection module periodically detects the temperature of the cooling water in the water storage box 31, and when the temperature of the cooling water in the water storage box 31 is greater than or equal to the preset value, the second transmission The sensor control module controls the water outlet valve 33 to open the first water outlet pipe 331 , so that the water in the water storage box 31 flows out of the water storage box 31 .

As shown in FIG. 6 , the range hood also includes a direct shutdown module. When the direct shutdown module is triggered to start, the shutdown button is pressed. The central control module closes the water inlet 311 through the first sensing control module, and the second detection module detects that the storage After the water in the water box 31 runs out, the first sensing control module controls the first water outlet pipe 331 and the second water outlet pipe 332 to close, and after the central control module controls the air intake and exhaust holes to close, the central control module then controls the oil fume suction. machine is turned off.

The range hood also includes a delayed shutdown module. When the delayed shutdown module is triggered to operate, the delayed shutdown key is pressed, the first sensing control module controls the water inlet valve 32 to open the water inlet 311, and the second sensing control module controls the water outlet. The valve 33 opens the second water outlet pipe 332, and the second sensing control module controls the water outlet valve 33 to close the first water outlet pipe 331; when the central control module determines that the operation time of the delayed shutdown module is greater than or equal to the preset value, the central control module controls The cooker hood triggers the direct shutdown module job to turn off the cooker hood.

The range hood also includes a cleaning module. When the cleaning module is triggered, the cleaning key is pressed. The first sensing control module controls the water inlet valve 32 to open the water inlet 311, and the second sensing control module controls the water outlet valve 33 to open the second outlet. The second sensing control module controls the water outlet valve 33 to close the first water outlet pipe 331. When the cleaning module is triggered to stop working, the central control module controls the range hood to trigger the direct shutdown module to turn off the range hood.

Specifically, the long-term operation of the range hood (such as making soup or for other special purposes) or the high temperature of the motor during operation causes the motor temperature to rise too high, thus affecting the service life, performance and safety of the range hood motor. . Moreover, after the range hood has been used for a certain period of time, its wind wheel will accumulate oil stains and it is difficult to clean, which will affect the performance of the range hood, such as affecting the air volume, etc., resulting in the problem that the range hood cannot effectively absorb the range hood or the efficiency of the range hood is too low, and the range hood can be prolonged. service life.

The use of the structure of the range hood of the present application effectively solves the problems of the high temperature rise of the motor of the range hood, which affects the service life, performance and safety of use. It can effectively reduce the problem that the fan wheel of the range hood will accumulate oil stains after a certain number of years of use, which will affect the performance of the range hood, such as affecting the air volume, etc., resulting in the range hood not being able to effectively absorb the range hood or the efficiency of the range hood being too low. This structure is adopted. The range hood can prolong the service life of the range hood.

In the present application, a fan assembly of a motor water cooling structure is provided, so that the motor can be cooled to maintain a proper temperature by continuously pouring cold water into the structure, and when the range hood enters a timed shutdown state, the The structure automatically cleans the wind wheel continuously for three minutes until the range hood is turned off. Since the range hood is self-cleaning immediately after each use, it is easier to clean and thoroughly, avoiding problems such as difficulty in cleaning, and prolonging the range hood. service life.

The range hood of the present application is a range hood with a self-cleaning structure, which solves the problems of high temperature rise and difficulty in cleaning the wind rotor caused by the range hood running for a long time or in a high temperature environment. The central control module of the range hood is arranged on the control panel of the range hood. The shape of the water storage box is disc-shaped, and the open end is provided with a tapped external thread for connection with the motor. The upper and lower sides are respectively provided with a water inlet and an outlet. The water outlet is used to connect with the water inlet detection device and the water outlet detection device. As shown in A in Figure 1, A is a detection device, and the detection device includes a water inlet detection device and a water outlet detection device. The tail end of the motor is designed with a threaded structure connected to the water storage box, as shown at B in Figure 4.

In this application, the range hood can cool down the motor so that the motor can always maintain a suitable temperature, and can also make the range hood perform self-cleaning for a preset duration in a delayed shutdown state, and the self-cleaning function can be controlled by the cleaning button. , and the cleaning duration and time point are set by the user. The specific performance is that in the non-shutdown or delayed shutdown state, the user can press the cleaning button to clean, press the cleaning button again to complete the cleaning, and in the cleaning state (regardless of the delayed shutdown self-cleaning or the user pressing the cleaning button to clean), The straight water outlet is always closed, and the water inlet is always open. This is because when the cleaning function is entered, the central control module issues instructions to the water inlet detection device and the water outlet detection device, and the sensing control modules of the two are received. After the command is reached, the straight water outlet is normally closed and the water inlet is normally open. In this application, the external water source is tap water, and the specific control process is shown in FIG. 6 .

For ease of description, spatially relative terms, such as "on", "over", "on the surface", "above", etc., may be used herein to describe what is shown in the figures. The spatial positional relationship of one device or feature shown to other devices or features. It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or features would then be oriented "below" or "over" the other devices or features under other devices or constructions". Thus, the exemplary term "above" can encompass both an orientation of "above" and "below." The device may also be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to specific features, structures or Features are included in at least one embodiment generally described in this application. The appearances of the same expression in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure or characteristic is described in conjunction with any one embodiment, it is claimed that implementation of that feature, structure or characteristic in conjunction with other embodiments is also within the scope of the present invention.

In the above-mentioned embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (15)

1. A fan assembly, comprising:

a drive unit (10);

the driving part (10) is connected with the wind wheel (20), and the driving part (10) is used for driving the wind wheel (20) to rotate;

the cooling device (30), cooling device (30) with drive division (10) are connected, cooling device (30) have water inlet system and water outlet system, and outside cooling water passes through water inlet system flows into in cooling device (30) and with drive division (10) carry out the heat exchange after, the cooling water after the heat exchange passes through water outlet system discharges outside cooling device (30).

2. The fan assembly of claim 1, wherein the cooling device (30) comprises:

water storage box (31), water storage box (31) have water inlet (311) and delivery port (312), go out the water system set up in delivery port (312) department, the water system of intaking includes water intaking valve (32), water intaking valve (32) with water storage box (31) are connected, water intaking valve (32) are used for opening or close water inlet (311), work as when water inlet (311) are in the open position, external cooling water passes through water inlet (311) flow in water storage box (31) and with drive division (10) carry out the heat exchange after, the cooling water after the heat exchange passes through water outlet system discharges outside cooling device (30).

3. The fan assembly according to claim 2, wherein the water inlet valve (32) is provided with an air inlet and an air outlet, the air outlet is used for exhausting air when the water storage box (31) stores water, and the air inlet is used for introducing air when the water storage box (31) discharges water.

4. The fan assembly of claim 3, further comprising:

a central control module;

the first detection module is used for detecting information whether the cooling water in the water storage box (31) is filled to a first preset position or not, and the central control module is used for receiving the information of the first detection module;

the first sensing control module controls the air inlet and the air outlet to be opened or closed and controls the water inlet valve (32) to be opened or closed according to the information received by the central control module by the first detection module, and the water inlet valve (311) is controlled by the first sensing control module.

5. The fan assembly of claim 2, wherein the water outlet system comprises:

the water outlet valve (33), the water outlet valve (33) is arranged at the water outlet (312), the water outlet valve (33) includes a first water outlet pipe (331), the first water outlet pipe (331) is used for discharging the water in the water storage box (31) out of the water storage box (31), wherein the water outlet valve (33) is used for controlling the first water outlet pipe (331) and the water outlet (312) to be conducted or closed.

6. The fan assembly according to claim 5, wherein the water outlet valve (33) further comprises a second water outlet pipe (332), a first end of the second water outlet pipe (332) is selectively communicated with the water outlet (312) through the water outlet valve (33), a second end of the second water outlet pipe (332) is arranged towards one side of the wind wheel (20), the second water outlet pipe (332) is used for guiding the cooling water in the water storage box (31) to the wind wheel (20) to perform a cleaning operation on the wind wheel (20), and the water outlet valve (33) is used for controlling the second water outlet pipe (332) to be communicated with or closed from the water outlet (312).

7. The fan assembly of claim 6, further comprising:

a central control module;

a second detection module for detecting temperature information of the drive part (10);

the data receiving module is used for receiving the temperature information detected by the second detection module, and the central control module controls the water inlet valve (32) to open or close the water inlet (311) and controls the water outlet system to open or close the water outlet (312) according to the temperature information sent by the data receiving module.

8. The fan assembly according to claim 6, wherein the water outlet system comprises a second sensing control module, the first water outlet pipe (331) and the second water outlet pipe (332) are arranged in parallel, the second sensing control module controls the water outlet valve (33) to independently control the conduction or the closing of the first water outlet pipe (331), and the water outlet valve (33) independently controls the conduction or the closing of the second water outlet pipe (332).

9. The fan assembly according to claim 2, wherein the driving part (10) is a motor, an annular groove (11) is formed in a housing of the motor, an inner wall surface of the annular groove (11) is provided with an inner thread, and at least part of the outer peripheral surface of the water storage box (31) is provided with an outer thread matched with the inner thread.

10. The fan assembly of claim 9, further comprising:

an annular sealing ring (40), the annular sealing ring (40) is arranged at the bottom of the annular groove (11).

11. A range hood comprising a fan assembly, wherein the fan assembly is as claimed in any one of claims 1 to 10.

12. A method of controlling a range hood, the method being for controlling a range hood as claimed in claim 11, the method comprising the steps of:

the first sensing control module receives control information of the central control module, and controls the water inlet valve (32) to open the water inlet (311), the air inlet and the air outlet so as to enable an external water source to enter the water storage box (31);

the first detection module periodically detects whether water in the water storage box (31) is full, if the water in the water storage box (31) is full, the first sensing control module controls the water inlet valve (32) to close the water inlet (311), and if the water in the water storage box (31) is not full, the water inlet valve (32) continues to open the water inlet (311) to feed water into the water storage box (31);

the second detection module periodically detects the temperature of the cooling water in the water storage box (31), and when the temperature of the cooling water in the water storage box (31) is larger than or equal to a preset value, the second sensing control module controls the water outlet valve (33) to open the first water outlet pipe (331) so that the water in the water storage box (31) flows out of the water storage box (31).

13. The method of claim 12, wherein the range hood further comprises a direct shutdown module;

when the direct shutdown module is triggered to be started, the central control module closes the water inlet (311) through the first sensing control module, and after the second detection module detects that water in the water storage box (31) is finished, the first sensing control module controls the first water outlet pipe (331) and the second water outlet pipe (332) to be closed;

after the central control module controls the air inlet and the exhaust hole to be closed, the central control module controls the range hood to be closed again.

14. The method of claim 13, wherein the range hood further comprises a delayed shutdown module;

when the delayed shutdown module is triggered to operate, the first sensing control module controls the water inlet valve (32) to open the water inlet (311), the second sensing control module controls the water outlet valve (33) to open the second water outlet pipe (332), and the second sensing control module controls the water outlet valve (33) to close the first water outlet pipe (331);

when the central control module judges that the operation time of the delayed shutdown module is greater than or equal to a preset value, the central control module controls the range hood to trigger the direct shutdown module to operate so as to close the range hood.

15. The method of claim 13, wherein the range hood further comprises a cleaning module;

when the cleaning module is triggered to operate, the first sensing control module controls the water inlet valve (32) to open the water inlet (311), the second sensing control module controls the water outlet valve (33) to open the second water outlet pipe (332), and the second sensing control module controls the water outlet valve (33) to close the first water outlet pipe (331);

when the cleaning module is triggered to stop working, the central control module controls the range hood to trigger the direct shutdown module to work so as to close the range hood.

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