Fan assembly

Abstract

The utility model particularly relates to a fan assembly. The fan assembly comprises a fan; a containing cavity for containing the fan is formed in the shell, an air inlet is formed in the back of the shell, and an air outlet is formed in the face of the shell; the filtering assembly is rotationally arranged in the containing cavity and located at the air inlet; and the driving device is arranged on the shell and connected with the filtering assembly, and the driving device is arranged to be capable of driving the filtering assembly to rotate to the air outlet when the fan assembly is in the maintenance state. According to the fan assembly, in the maintenance process, the filter assembly can be driven to the air outlet from the air inlet, and therefore a user can conveniently maintain and replace the filter assembly at the air outlet.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a fan assembly. Background Art

[0002] In order to make full use of the space, some existing fan products have the air inlet and filter placed on the back facing the wall. When the internal components such as the filter need to be maintained and replaced, the maintenance and replacement operation experience of the internal components such as the filter is poor due to the limited space.

[0003] Taking fan lamps as an example, fan lamps are products that combine fans and lamps. Some fan lamps are equipped with exposed fans, while others are equipped with built-in blower fans. Fan lamps with blower fans are usually installed on the top of the room, and the air inlet is set on the back of the fan lamp facing the roof. This will result in insufficient space at the air inlet of the fan lamp to disassemble and replace the filter assembly at the air inlet, making it inconvenient for users to maintain and replace the filter assembly. Utility Model Content

[0004] In view of this, the utility model provides a fan assembly to solve the technical problem in the prior art that the filter assembly arranged at the back of the fan assembly is inconvenient to maintain and replace.

[0005] In the first aspect, the utility model provides a fan assembly, the fan assembly comprising: a fan; a shell, the interior of the shell is formed with a accommodating cavity for accommodating the fan, the back of the shell is formed with an air inlet, and the face of the shell is formed with an air outlet; a filter assembly, the filter assembly is rotatably arranged in the accommodating cavity and is located at the air inlet; a driving device, the driving device is arranged in the shell and connected to the filter assembly, and the driving device is configured to drive the filter assembly to rotate to the air outlet when the fan assembly is in a maintenance state.

[0006] Beneficial effect: The fan assembly proposed in this embodiment can drive the filter assembly from the air inlet to the air outlet during maintenance, thereby facilitating the user to maintain and replace the filter assembly at the air outlet, solving the technical problem of inconvenient maintenance and replacement of the filter due to insufficient space at the air inlet on the back of the fan assembly.

[0007] Specifically, when the user needs to replace the filter assembly, the user can use the cleaning button on the remote control to make the filter assembly of the fan assembly rotate 180 degrees under the drive of the driving device. At this time, the filter assembly rotates from the air inlet of the fan assembly to the air outlet of the fan assembly. Since the space at the air outlet is larger, it is convenient for the user to maintain and replace the filter assembly.

[0008] In an optional embodiment, an inner gear ring is disposed at one end of the filter assembly, the driving device comprises a driving motor, and a gear meshing with the inner gear ring is disposed at the output end of the driving motor.

[0009] Beneficial effect: During the assembly of the filter assembly and the drive device, the gear is inserted into the inner gear ring of the filter assembly, and then the drive shaft of the drive motor is inserted into the center hole of the gear. Finally, the motor is fixed to the outer casing. The drive motor drives the filter assembly to rotate at different angles through the gear and the gear ring, thereby meeting the fan's requirements for different working angles and maintenance and replacement states.

[0010] In an optional embodiment, the filter assembly includes an air inlet grille and a filter screen, the filter screen is detachably arranged on the air inlet grille and covers the air inlet, and the inner gear ring is arranged at the end of the air inlet grille.

[0011] Beneficial effects: The air inlet grille is used to support and install the filter, thereby improving the working stability of the filter and reducing the damage, shaking and falling of the filter during operation. At the same time, the filter is detachably arranged on the air inlet grille. During the maintenance and replacement of the filter assembly, only the filter needs to be maintained and replaced, which reduces the difficulty and cost of maintenance and replacement of the filter assembly.

[0012] In an optional embodiment, a filter bracket that is engaged with the air inlet grille is provided at one end of the filter, and the other end of the filter is engaged with the limiting groove of the air inlet grille.

[0013] Beneficial effect: The filter bracket supports and protects the end of the filter, reducing the wrinkles or pulling damage of the filter during the disassembly and assembly of the filter and the air inlet grille. The other end of the filter is connected to the limit groove of the air inlet grille. During the disassembly and assembly of the filter and the air inlet grille, the limit groove can guide the filter, reducing the phenomenon of the filter being installed at an angle or not in place.

[0014] In an optional embodiment, the filter assembly is configured as a semi-cylindrical structure, and the cross-section of the air inlet grille, the filter screen, and the filter screen support are all configured as arc structures.

[0015] Beneficial effect: The filter assembly is set as a semi-cylindrical structure, which can play a semi-wrapping role on the fan, thereby increasing the effective filtering surface of the filter assembly on the fan and reducing the phenomenon of external dust and formaldehyde bypassing the filter assembly and contacting the fan. Furthermore, the filter assembly is set as a semi-cylindrical structure, and the rotation radius of the filter assembly is consistent, thereby reducing the interference of the filter assembly with other components during the rotation process.

[0016] In an optional embodiment, the fan assembly also includes an air outlet grille arranged in the accommodating cavity and located at the air outlet, the filter assembly is configured to be spliced ​​with the air outlet grille to form a cover for accommodating the fan, and the driving device is configured to be able to drive the filter assembly to drive the air outlet grille to rotate at the air outlet.

[0017] Beneficial effect: By splicing the filter assembly with the air outlet grille, the driving device can not only drive the filter assembly to rotate between the air inlet and the air outlet, but also drive the air outlet grille to swing at the air outlet. That is to say, the air outlet grille can rotate left and right during normal operation. For example, the air outlet grille can deflect to both sides by 30°, thereby increasing the coverage range of the fan and meeting the user's requirements for the fan's blowing range.

[0018] In an optional embodiment, the filter assembly and the air outlet grille are both configured as semi-cylindrical structures, the filter assembly and the air outlet grille are spliced ​​into a cylindrical cover shell, and the joints between the filter assembly and the air outlet grille are provided with docking buckles and docking magnetic buckles.

[0019] Beneficial effect: The combination of the docking buckle and the docking magnetic buckle can improve the convenience of disassembly and assembly of the filter assembly and the air outlet grille. For example, during the assembly of the filter assembly and the air outlet grille, the filter assembly can be adsorbed onto the air outlet grille by simply aligning the docking magnetic buckles on the filter assembly and the air outlet grille. The two can then be connected by the docking buckle, thereby improving the assembly stability and efficiency of the filter assembly and the air outlet grille.

[0020] In an optional embodiment, the outer shell includes a front shell and a back shell spliced ​​to each other, the air inlet is arranged on the back shell, and the air outlet is arranged on the front shell.

[0021] Beneficial effect: By making the outer shell include a front shell and a back shell spliced ​​to each other, it can be more convenient for users to disassemble and assemble the filter assembly. For example, when the size of the filter assembly is larger than the air outlet, the user can first remove the front shell from the back shell, and then remove the filter assembly from the inside of the outer shell for maintenance and replacement. When the user completes the maintenance and replacement of the filter assembly, the filter assembly and the front shell can be assembled on the back shell.

[0022] In an optional embodiment, the inner wall of the surface shell is provided with an annular enclosure plate surrounding the periphery of the air outlet, and the cover shell is rotatably disposed on the annular enclosure plate through a shaft sleeve and is located in the enclosure area of ​​the annular enclosure plate.

[0023] Beneficial effect: The annular enclosure provides a mountable base and installation space for the housing, so that the housing can stably rotate in the enclosed area of ​​the annular enclosure, reducing the deflection or shaking of the housing during rotation. Furthermore, the inner gear ring on the housing is mounted on the annular enclosure through a shaft sleeve, which is not only used to fix the housing, but also serves to lubricate the housing. For example, the material of the shaft sleeve includes POM (polyoxymethylene resin) or PA66 (crystalline polymerized polyamide resin).

[0024] In an optional embodiment, the fan assembly includes a fan lamp, the fan includes a drum fan, the air inlet is arranged on the side of the fan lamp facing the roof, the air outlet is arranged on the side of the fan lamp opposite to the air inlet, and the filter assembly includes a formaldehyde filter assembly.

[0025] Beneficial effects: The entire assembly of the fan lamp includes a front shell, a back shell, a light strip, a control box, a fan and a mounting frame. The mounting frame is used to support and install the fan assembly to the roof. The light strip and the control box are sequentially installed in the back shell, and then the wires are connected. The front shell is covered to complete the assembly of the fan assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a schematic diagram of the split structure of a fan according to an embodiment of the utility model;

[0028] Figure 2 for Figure 1 A schematic diagram of the structure of the filter assembly of the fan shown;

[0029] Figure 3 for Figure 2 a cross-sectional view of the filter assembly shown;

[0030] Figure 4 for Figure 2 The schematic diagram of the structure of the air inlet grille after the filter screen is removed from the filter assembly shown;

[0031] Figure 5 for Figure 4 An axonometric view of the air inlet grille shown;

[0032] Figure 6 for Figure 2 A schematic diagram of the structure of the filter support of the filter assembly shown;

[0033] Figure 7 A front view of a fan in a working state according to an embodiment of the utility model;

[0034] Figure 8 A rear view of a fan in a working state according to an embodiment of the utility model;

[0035] Fig. 9 A front view of a fan in a maintenance state according to an embodiment of the utility model;

[0036] Fig.10 This is a rear view of a fan in a maintenance state according to an embodiment of the utility model.

[0037] Description of reference numerals:

[0038] 100. Fan assembly; 101. Air inlet; 102. Air outlet;

[0039] 10. Outer shell; 11. Back shell; 12. Surface shell;

[0040] 20. Filter assembly; 21. Air inlet grille; 211. Elastic buckle; 212. Limiting groove; 213. Docking buckle; 214. Docking magnetic buckle; 22. Filter screen; 221. Filter screen bracket;

[0041] 30. driving device; 31. driving motor; 32. gear; 33. bushing;

[0042] 40. Air outlet grille;

[0043] 50. Mounting frame. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0045] In the description of the present invention, it should be noted that the terms "inside", "upper", "outer", "lower", "bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0046] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be fixed connection, detachable connection, or integrated connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can also be the connection between two components, it can be wireless connection or wired connection. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0047] Combine the following Figures 1 to 10 , describing an embodiment of the utility model.

[0048] like Figure 1 As shown, according to an embodiment of the utility model, on the one hand, the utility model provides a fan assembly 100, the fan assembly 100 includes a fan, a housing 10, a filter assembly 20 and a driving device 30, the interior of the housing 10 is formed with a accommodating cavity for accommodating the fan, the back of the housing 10 is formed with an air inlet 101, the face of the housing 10 is formed with an air outlet 102, the filter assembly 20 is rotatably disposed in the accommodating cavity and is located at the air inlet 101, the driving device 30 is disposed in the housing 10 and connected to the filter assembly 20, and the driving device 30 is configured to be able to drive the filter assembly 20 to rotate to the air outlet 102 when the fan assembly 100 is in a maintenance state.

[0049] In this embodiment, in order to make full use of the space, the air inlet 101 of the fan assembly 100 and the filter assembly 20 are arranged at the back facing the wall. When the user needs to maintain and replace the filter assembly 20, the filter assembly 20 can be driven from the air inlet 101 to the air outlet 102 through the driving device 30, thereby facilitating the user to maintain and replace the filter assembly 20 at the air outlet 102.

[0050] Specifically, Fig. 9 and Fig.10 As shown, when the user needs to replace the filter assembly 20, the user can press and hold the cleaning button on the remote control for 3 seconds, and the filter assembly 20 rotates 180 degrees under the drive of the motor. At this time, the filter assembly 20 rotates from the air inlet 101 to the air outlet 102. The space at the air outlet 102 is larger, which is convenient for the user to maintain and replace the filter assembly 20. Figure 7 and Figure 8As shown, after the user completes the maintenance and replacement of the filter assembly 20, the user can use the reset button on the remote control to rotate the filter assembly 20 180 degrees to the air inlet 101, and then the fan can resume normal use. By doing so, the problem of inconvenient replacement of the filter assembly 20 due to insufficient back space after the fan is installed is solved.

[0051] It should be noted that the embodiment of the present application does not limit the specific structure of the housing 10, the filter assembly 20 and the drive device 30, because the main improvement of the present application is to drive the filter assembly 20 to rotate between the air inlet 101 and the air outlet 102 by the drive device 30, so as to achieve the technical effect that the filter assembly 20 can filter at the air inlet 101 and be maintained and replaced at the air outlet 102. As for the specific structure of the housing 10, the filter assembly 20 and the drive device 30, they can be set according to the type of fan and the actual use environment. For example, the housing 10 can be set to a rectangular or cylindrical structure, the filter assembly 20 can be set to a cylindrical or plate-shaped structure, and the drive device 30 can be set to a motor or a connecting rod mechanism, etc. These adjustments all fall within the protection scope of the embodiments of the present application.

[0052] Below through Figures 1 to 6 The preferred embodiments of the specific structures of the housing 10, the filter assembly 20 and the drive device 30 are described in detail.

[0053] like Figures 1 to 6 As shown, in some embodiments, an inner gear ring is disposed at one end of the filter assembly 20, and the driving device 30 includes a driving motor 31, and a gear 32 meshing with the inner gear ring is disposed at the output end of the driving motor 31.

[0054] In the above embodiment, during the process of assembling the filter assembly 20 and the drive device 30, the gear 32 is inserted into the inner gear ring of the filter assembly 20, and then the drive shaft of the drive motor 31 is inserted into the center hole of the gear 32. Finally, the motor is fixed to the housing 10. The drive motor 31 drives the filter assembly 20 to rotate at different angles through the gear 32 and the gear ring, thereby meeting the fan's requirements for different working angles and maintenance and replacement states.

[0055] like Figures 1 to 6 As shown, in some embodiments, the filter assembly 20 includes an air inlet grille 21 and a filter screen 22 . The filter screen 22 is detachably disposed on the air inlet grille 21 and covers the air inlet 101 . An inner gear ring is disposed at the end of the air inlet grille 21 .

[0056] In this embodiment, the air inlet grille 21 is used to support and install the filter 22, thereby improving the working stability of the filter 22 and reducing the damage, shaking and falling of the filter 22 during operation. At the same time, the filter 22 is detachably arranged on the inner side of the air inlet grille 21. During the maintenance and replacement of the filter assembly 20, only the filter 22 needs to be maintained and replaced, which reduces the difficulty and cost of maintenance and replacement of the filter assembly 20.

[0057] like Figures 1 to 6 As shown, in some embodiments, a filter bracket 221 engaged with the air inlet grille 21 is provided at one end of the filter 22 , and the other end of the filter 22 is engaged with the limiting groove 212 of the air inlet grille 21 .

[0058] In the above embodiment, the filter bracket 221 plays a supporting and protective role on the end of the filter 22, reducing the phenomenon of wrinkles or pulling damage to the filter 22 during the disassembly and assembly process with the air inlet grille 21. Specifically, the filter bracket 221 is provided with a slot, and the end of the air inlet grille 21 is provided with an elastic buckle 211 that cooperates with the slot. When the filter bracket 221 is installed on the air inlet grille 21, the slot of the air inlet grille 21 squeezes the elastic buckle 211 to deform, so that the elastic buckle 211 is extended to the slot by contraction and then returns to a natural state, thereby achieving the purpose of clamping the filter bracket 221.

[0059] Furthermore, the other end of the filter 22 is snapped into the limiting groove 212 of the air inlet grille 21. During the disassembly and assembly of the filter 22 and the air inlet grille 21, the limiting groove 212 can guide the filter 22, thereby reducing the phenomenon of the filter 22 being installed at an angle or improperly.

[0060] like Figures 1 to 6 As shown, in some embodiments, the filter assembly 20 is configured as a semi-cylindrical structure, and the cross-sections of the air inlet grille 21 and the filter screen 22 and the filter screen support 221 are all configured as arc structures.

[0061] In the above embodiment, the filter component 20 is set as a semi-cylindrical structure, which can semi-wrap the fan, thereby increasing the effective filtering surface of the filter component 20 on the fan and reducing the phenomenon of external dust and formaldehyde bypassing the filter component 20 and contacting the fan.

[0062] Furthermore, the filter assembly 20 is configured as a semi-cylindrical structure, and the rotation radius of the filter assembly 20 is consistent, thereby reducing the interference between the filter assembly 20 and other components during the rotation process.

[0063] like Figure 6As shown, in some embodiments, the fan assembly 100 also includes an air outlet grille 40 disposed in the accommodating cavity and located at the air outlet 102, the filter assembly 20 is configured to be spliced ​​with the air outlet grille 40 to form a cover for accommodating the fan, and the driving device 30 is configured to be able to drive the filter assembly 20 to drive the air outlet grille 40 to rotate at the air outlet 102.

[0064] In this embodiment, by splicing the filter assembly 20 with the air outlet grille 40, the driving device 30 can not only drive the filter assembly 20 to rotate between the air inlet 101 and the air outlet 102, but also drive the air outlet grille 40 to swing at the air outlet 102, that is, the air outlet grille 40 can rotate left and right during normal operation. For example, the air outlet grille 40 can deflect to both sides by an angle of 30°, thereby increasing the coverage range of the fan and meeting the user's requirements for the fan's blowing range.

[0065] Furthermore, the size of the filter assembly 20 is larger than the size of the air inlet 101, thereby ensuring that when the air outlet grille 40 swings left and right, the filter assembly 20 can always cover the air inlet 101 and filter the air at the air inlet 101, thereby reducing the phenomenon of external dust and formaldehyde entering the outer shell 10.

[0066] like Figures 1 to 6 As shown, in some embodiments, the filter assembly 20 and the air outlet grille 40 are both configured as semi-cylindrical structures, the filter assembly 20 and the air outlet grille 40 are spliced ​​into a cylindrical cover shell, and the docking point between the filter assembly 20 and the air outlet grille 40 is provided with a docking buckle 213 and a docking magnetic buckle 214.

[0067] In this embodiment, through the combination of the docking buckle 213 and the docking magnetic buckle 214, the convenience of disassembly and assembly of the filter assembly 20 and the air outlet grille 40 can be improved. For example, in the process of assembling the filter assembly 20 and the air outlet grille 40, it is only necessary to align the docking magnetic buckles 214 on the filter assembly 20 and the air outlet grille 40, and then the filter assembly 20 can be adsorbed onto the air outlet grille 40, and then the two are clamped together through the docking buckle 213, thereby improving the assembly stability and assembly efficiency of the filter assembly 20 and the air outlet grille 40.

[0068] like Figures 1 to 6 As shown, in some embodiments, the housing 10 includes a front shell 12 and a back shell 11 which are spliced ​​to each other, the air inlet 101 is arranged on the back shell 11, and the air outlet 102 is arranged on the front shell 12.

[0069] In this embodiment, by making the outer shell 10 include a front shell 12 and a back shell 11 spliced ​​to each other, it can be more convenient for the user to disassemble and assemble the filter component 20. For example, when the size of the filter component 20 is larger than the air outlet 102, the user can first disassemble the front shell 12 from the back shell 11, and then remove the filter component 20 from the inside of the outer shell 10 for maintenance and replacement. When the user completes the maintenance and replacement of the filter component 20, the filter component 20 and the front shell 12 are assembled on the back shell 11.

[0070] like Figures 1 to 6 As shown, in some embodiments, the inner wall of the face shell 12 is provided with an annular enclosure plate surrounding the periphery of the air outlet 102, and the cover shell is rotatably disposed on the annular enclosure plate through a shaft sleeve 33 and is located in the enclosure area of ​​the annular enclosure plate.

[0071] In this embodiment, the annular enclosure provides a mountable base and an installation space for the cover shell, so that the cover shell can stably rotate on the annular enclosure, thereby reducing the deflection or shaking of the cover shell during the rotation process.

[0072] Furthermore, the inner gear ring on the cover is installed on the annular enclosure through a sleeve 33. The sleeve 33 is not only used to fix the cover, but also serves to lubricate the cover. For example, the material of the sleeve 33 includes POM (polyoxymethylene resin) or PA66 (crystalline polymerized polyamide resin).

[0073] like Figures 1 to 6 As shown, in some embodiments, the fan assembly 100 includes a fan lamp, the fan includes a drum fan, the air inlet 101 is arranged on the side of the fan lamp facing the roof, the air outlet 102 is arranged on the side of the fan lamp opposite to the air inlet 101, and the filter assembly 20 includes a formaldehyde filter assembly 20.

[0074] In this embodiment, the entire fan lamp includes a front shell 12, a back shell 11, a light strip, a control box, a fan and a mounting frame 50. The mounting frame 50 is used to support and install the fan assembly 100 to the roof. The light strip and the control box are sequentially installed in the back shell 11, and then the wires are connected. The front shell 12 is covered to complete the assembly of the fan assembly 100.

[0075] Furthermore, the filter component 20 is configured to have a formaldehyde removal function. The fan of the embodiment of the present application combined with the formaldehyde removal filter component 20 can not only meet the demand for blowing air, but also can simultaneously achieve the effect of formaldehyde removal and purification.

[0076] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A fan assembly, characterized in that: The fan assembly (100) comprises: fan; A housing (10), wherein a housing cavity for accommodating the fan is formed inside the housing (10), an air inlet (101) is formed on the back of the housing (10), and an air outlet (102) is formed on the face of the housing (10); A filter assembly (20), the filter assembly (20) being rotatably disposed in the accommodating cavity and located at the air inlet (101); A driving device (30) is arranged on the housing (10) and connected to the filter assembly (20), and the driving device (30) is arranged to drive the filter assembly (20) to rotate to the air outlet (102) when the fan assembly (100) is in a maintenance state.

2. The fan assembly according to claim 1, characterized in that: An inner gear ring is provided at one end of the filter assembly (20), and the drive device (30) comprises a drive motor (31), wherein an output end of the drive motor (31) is provided with a gear (32) meshing with the inner gear ring.

3. The fan assembly according to claim 2, characterized in that: The filter assembly (20) comprises an air inlet grille (21) and a filter screen (22); the filter screen (22) is detachably arranged on the air inlet grille (21) and covers the air inlet (101); and the inner gear ring is arranged at the end of the air inlet grille (21).

4. The fan assembly according to claim 3, characterized in that: One end of the filter screen (22) is provided with a filter screen bracket (221) that is clamped to the air inlet grille (21), and the other end of the filter screen (22) is clamped to the limiting groove (212) of the air inlet grille (21).

5. The fan assembly according to claim 4, characterized in that: The filter assembly (20) is configured as a semi-cylindrical structure, and the cross-sections of the air inlet grille (21), the filter screen (22), and the filter screen support (221) are all configured as arc-shaped structures.

6. The fan assembly according to claim 1, characterized in that The fan assembly (100) further comprises an air outlet grille (40) arranged in the accommodating cavity and located at the air outlet (102); the filter assembly (20) is arranged to be spliced ​​with the air outlet grille (40) to form a housing for accommodating the fan; and the drive device (30) is arranged to be able to drive the filter assembly (20) to drive the air outlet grille (40) to rotate at the air outlet (102).

7. The fan assembly according to claim 6, characterized in that The filter assembly (20) and the air outlet grille (40) are both configured as semi-cylindrical structures; the filter assembly (20) and the air outlet grille (40) are spliced ​​together to form the cylindrical cover shell; a docking buckle (213) and a docking magnetic buckle (214) are provided at the docking point between the filter assembly (20) and the air outlet grille (40).

8. The fan assembly according to claim 7, characterized in that The outer shell (10) comprises a front shell (12) and a back shell (11) which are spliced ​​to each other, the air inlet (101) is arranged on the back shell (11), and the air outlet (102) is arranged on the front shell (12).

9. The fan assembly according to claim 8, characterized in that: The inner wall of the surface shell (12) is provided with an annular enclosure plate which surrounds the periphery of the air outlet (102), and the cover shell is rotatably arranged on the annular enclosure plate through a shaft sleeve (33) and is located in the enclosure area of ​​the annular enclosure plate.

10. The fan assembly according to any one of claims 1 to 9, characterized in that: The fan assembly (100) comprises a fan lamp, the fan comprises a drum fan, the air inlet (101) is arranged on a side of the fan lamp facing the roof, the air outlet (102) is arranged on a side of the fan lamp opposite to the air inlet (101), and the filter assembly (20) comprises a formaldehyde filter assembly (20).

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