Air purifier

Abstract

The utility model provides an air purifier and belongs to the technical field of air purification. The air purifier comprises a main machine module, the main machine module comprises a machine body assembly and a fan assembly, a wind wheel cavity is formed in the machine body assembly, the cavity top of the wind wheel cavity is a flow guide plate protruding downwards, an air channel is formed by the flow guide plate and the side wall of the wind wheel cavity, and an annular air outlet surrounding the flow guide plate is formed in the peripheral wall of the machine body assembly; the fan assembly comprises a wind wheel motor and a centrifugal wind wheel, the centrifugal wind wheel is located in the wind wheel cavity and located below the flow guide plate, the wind wheel motor is connected with the centrifugal wind wheel, and when the centrifugal wind wheel rotates, wind entering the wind wheel cavity can be exhausted through the annular air outlet along the air channel; the filtering module is connected with the machine body assembly and used for filtering air entering the wind wheel cavity. According to the air purifier, air generated when the centrifugal wind wheel works is directly and rapidly exhausted from the side face of the machine body, an air channel is smoother, the exhaust air rate is increased, and the air supply performance is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of air purification, and particularly relates to an air purifier. Background Art

[0002] The air outlet directions of some traditional air purifiers are all vertically upward for air supply. For example, the air purifier with a minimalist layout disclosed in the Chinese patent with the authorization announcement number CN218846389 U. The centrifugal fan on this air purifier changes the air outlet direction through the air duct setting, forming a vertically upward air outlet. During the air outlet process, the loss is too large, affecting the air supply performance, and the air outlet direction is single and cannot perform circumferential air outlet, affecting the product experience. Content of the Utility Model

[0003] In view of the above technical problems existing in the prior art, the utility model provides an air purifier. The air purifier directly discharges the air generated during the operation of the centrifugal impeller from the side of the fuselage quickly, making the air duct smoother, increasing its air discharge volume, and improving the air supply performance.

[0004] The technical solution adopted in the embodiment of the utility model is as follows:

[0005] An air purifier, comprising:

[0006] A main machine module, including a fuselage component and a fan component arranged on the fuselage component. There is an impeller cavity in the fuselage component. The top of the impeller cavity is a downwardly convex guide plate. The guide plate and the side wall of the impeller cavity form an air duct. An annular air outlet is arranged on the outer peripheral wall of the fuselage component around the guide plate. An air inlet of the fuselage is arranged at the bottom of the fuselage component; the fan component includes a vertically arranged impeller motor and a centrifugal impeller. The centrifugal impeller is located in the impeller cavity and below the guide plate. The impeller motor is connected to the centrifugal impeller. When the centrifugal impeller rotates, it can discharge the air entering the impeller cavity along the air duct through the annular air outlet;

[0007] A filtering module, arranged below the fuselage component, for filtering the air entering the impeller cavity.

[0008] Further, the filtering module includes a filter screen support and a filter screen component wrapping the filter screen support. The filter screen support is connected to the fuselage component. The filter screen component includes a filter screen part and a filter screen fixing frame. The filter screen part is a cuboid structure formed by combining a plurality of folding parts. The first end of the filter screen part is connected to the filter screen fixing frame. The filter screen fixing frame is detachably connected to the filter screen support. The second end of the filter screen part is detachably connected to the filter screen fixing frame. This structure realizes the detachable filter screen component without disassembling the lower part of the main machine.

[0009] Further, guiding ribs are provided on the filter screen support, and sliding grooves are provided on the filter screen fixing frame. The filter screen fixing frame is detachably connected to the filter screen support through the cooperation of the sliding grooves and the guiding ribs. This structure facilitates the installation of the filter screen fixing frame on the filter screen support.

[0010] Further, the filter screen support includes an upper connection platform, a lower support platform, and a columnar grid frame located between the upper connection platform and the lower support platform. The top open end of the columnar grid frame communicates with the air inlet of the fuselage.

[0011] A filter screen placement groove is defined between the bottom surface of the upper connection platform, the top surface of the lower support platform, and the outer peripheral wall of the columnar grid frame. The filter screen component wraps the columnar grid frame and is snapped into the filter screen placement groove. This structure realizes the compactness of the assembly of the filter screen component and the filter screen support.

[0012] Further, guiding ribs are respectively provided on the bottom surface of the upper connection platform and the top surface of the lower support platform, and sliding grooves are respectively provided on the top surface and the bottom surface of the filter screen fixing frame.

[0013] Further, magic tapes for connection are respectively provided at the second ends of the filter screen fixing frame and the filter screen component. This structure facilitates the installation and disassembly of the filter screen component.

[0014] Further, the filtering module further includes a cloth cover that wraps the filter screen component. The cloth cover can isolate large particle dust and hair, and prolong the service life of the main filter screen.

[0015] Further, the fuselage assembly includes a fuselage main body, an upper fuselage cover, a wind wheel cover, and a lower fuselage cover. The fuselage main body is a cylindrical structure with both ends open. The guide plate is arranged inside the fuselage main body, and the guide plate divides the interior of the fuselage main body into an upper cavity and a lower cavity.

[0016] The upper fuselage cover is connected to the top of the fuselage main body to cover the upper cavity and form a main control cavity, and the wind wheel motor is arranged in the main control cavity; the wind wheel cover is connected to the bottom of the fuselage main body to cover the lower cavity and form the wind wheel cavity. The inner wall of the wind wheel cover and the inner wall of the fuselage main body form the side wall of the fuselage assembly, and a plurality of annular air outlets are respectively arranged on the fuselage main body.

[0017] Both the wind wheel cover and the lower fuselage cover are annular structures. The lower fuselage cover is used to connect the fuselage main body and the filtering module, and the bottom end of the lower fuselage cover forms the air inlet of the fuselage. The direction of the air outlet can be changed by rotating a plurality of annular grilles.

[0018] Further, a plurality of annular grilles are provided on the outer peripheral wall of the fuselage main body, and the plurality of annular grilles are spaced apart in the vertical direction. An annular air outlet is defined between two adjacent annular grilles. The direction of the air outlet can be changed by rotating the plurality of annular grilles.

[0019] Further, the main machine module further includes a main control component, the main control component is electrically connected to the wind wheel motor, the main control component is disposed in the main control cavity, and an operation panel connected to the main control component is provided on the upper cover of the fuselage.

[0020] Compared with the prior art, the beneficial effects of the embodiments of the present invention are as follows:

[0021] In the air purifier of the present invention, the top of the wind wheel cavity is a diversion plate protruding downward, and the diversion plate and the side wall of the wind wheel cavity form an air duct. When the centrifugal wind wheel rotates, the wind can be blown into the air duct obliquely upward, and then discharged through the annular air outlet on the fuselage assembly. In this way, the wind generated when the centrifugal wind wheel works is directly discharged quickly from the annular air outlet on the side of the fuselage assembly, and circumferential air outlet is realized, making the air duct smoother, increasing its air discharge volume, and improving the air supply performance.

[0022] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In the drawings which are not necessarily drawn to scale, the same reference numerals can describe similar components in different views. The same reference numerals with letter suffixes or different letter suffixes can represent different instances of similar components. The drawings generally illustrate various embodiments by way of example rather than limitation, and are used together with the description and the claims to explain the disclosed embodiments. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be an exhaustive or exclusive embodiment of the device or method.

[0024] Figure 1 Schematic perspective view of the air purifier according to the embodiment of the present invention:

[0025] Figure 2 Exploded view of the air purifier according to the embodiment of the present invention:

[0026] Figure 3 Main cross-sectional view of the air purifier according to the embodiment of the present invention:

[0027] Figure 4 Cross-sectional view of the main machine module of the air purifier according to the embodiment of the present invention:

[0028] Figure 5 The first structural diagram of the combined grille according to the embodiment of the present utility model:

[0029] Figure 6 The second structural diagram of the combined grille according to the embodiment of the present utility model:

[0030] Figure 7 The bending diagram of the filter element according to the embodiment of the present utility model:

[0031] Figure 8 The exploded view of the filter element according to the embodiment of the present utility model:

[0032] Figure 9 The assembly diagram of the filter fixing frame and the filter support according to the embodiment of the present utility model:

[0033] Figure 10 The assembly diagram of the filter component and the filter support according to the embodiment of the present utility model:

[0034] Figure 11 The three-dimensional structural schematic diagram of the filter support according to the embodiment of the present utility model.

[0035] In the figure:

[0036] 1. Filter module; 10. Cloth cover; 11. Filter component; 110. Pleated part; 111. Filter fixing frame; 112. Slide groove; 113. Male sticker; 114. Female sticker; 12. Filter support; 120. Filter placement groove; 121. Upper connection platform; 122. Lower support platform; 123. Columnar grid frame; 124. Guide rib; 13. Base;

[0037] 2. Host module; 20. Lower body cover; 200. Body air inlet; 21. Wind wheel cover; 22. Body main body; 220. Annular air outlet; 221. Deflector; 222. Annular grille; 223. Wind wheel cavity; 224. Main control cavity; 23. Centrifugal wind wheel; 24. Main control board fixing frame; 25. Upper body cover; 26. Main control board; 27. Operation panel; 28. Wind wheel motor; 29. Sensor. Detailed implementation manners

[0038] To enable those skilled in the art to better understand the technical solutions of the embodiments of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific implementation manners.

[0039] Unless otherwise defined, technical terms or scientific terms used in this disclosure shall have the ordinary meanings as understood by those of ordinary skill in the art to which this disclosure pertains. The terms "first", "second" and similar words used in this disclosure do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Words such as "upper", "lower", "left", "right" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0040] As Figures 1 to 4 shown, this embodiment provides an air purifier, which mainly includes a host module 2 and a filter module 1 connected to the host module 2.

[0041] The host module 2 includes a body assembly and a fan assembly. The fan assembly is disposed on the body assembly, and there is a wind wheel cavity 223 inside the body assembly. The top of the wind wheel cavity 223 is a downwardly convex guide plate 221, and the guide plate 221 and the side wall of the wind wheel cavity 223 form an air duct (not shown in the figure).

[0042] An annular air outlet 220 is provided on the outer peripheral wall of the body assembly around the guide plate 221, and a body air inlet 200 is provided at the bottom of the body assembly. The annular air outlet 220 and the body air inlet 200 are respectively communicated with the air duct.

[0043] The fan assembly includes a wind wheel motor 28 and a centrifugal wind wheel 23. The centrifugal wind wheel 23 is disposed in the wind wheel cavity 223 and is located below the guide plate 221. The motor shaft of the wind wheel motor 28 and the wheel shaft of the centrifugal wind wheel 23 are coaxial and both are vertically arranged. The motor shaft of the wind wheel motor 28 is connected to the centrifugal wind wheel 23, and the wind wheel motor 28 is used to drive the centrifugal wind wheel 23 to rotate. When the centrifugal wind wheel 23 rotates, air can enter the wind wheel cavity 223 through the body air inlet 200, then be blown obliquely upward into the air duct, and then be discharged through the annular air outlet 220 on the body assembly.

[0044] The filter module 1 is disposed below the body assembly. The filter module 1 is used to filter the air entering the wind wheel cavity 223.

[0045] In the air purifier of this embodiment, the top of the wind wheel chamber 223 is a deflector 221 protruding downward, and the deflector 221 and the side wall of the wind wheel chamber 223 form an air duct. When the centrifugal wind wheel 23 rotates, the wind can be blown obliquely upward into the air duct and then discharged through the annular air outlet 220 on the body assembly. In this way, the wind generated when the centrifugal wind wheel 23 works is directly discharged quickly from the annular air outlet 220 on the side of the body assembly, and circumferential air outlet is realized, making the air duct smoother, increasing its air discharge volume, and improving the performance.

[0046] As Figure 2 , Figures 7 to 10 shown, in some embodiments, the filter module 1 includes a filter screen support 12 and a filter screen component 11 that wraps the filter screen support 12. The filter screen support 12 is connected to the body assembly, and the filter screen component 11 includes a filter screen and a filter screen fixing frame 111.

[0047] The filter screen is a cuboid structure formed by combining a plurality of pleated portions 110. The filter screen can be compressed by the plurality of pleated portions 110 to become various structures. When the filter screen wraps around the filter screen support 12, the filter screen can form an annular structure; when the filter screen is removed from the filter screen support 12, it can be unfolded to form a rectangular structure.

[0048] Furthermore, the first end of the filter screen is connected to the filter screen fixing frame 111, the filter screen fixing frame 111 is detachably connected to the filter screen support 12, and the second end of the filter screen is detachably connected to the filter screen fixing frame 111.

[0049] When the air purifier needs to clean or replace the filter screen component 11 after being used for a period of time, the filter screen fixing frame 111 can be first disassembled from the filter screen support 12, and then the second end of the filter screen can be separated from the filter screen fixing frame 111, thus realizing the function of conveniently disassembling and replacing the filter screen component 11 without disassembling the main body.

[0050] As Figure 11 shown, in some embodiments, the filter screen support 12 includes an upper connecting platform 121, a lower supporting platform 122, and a columnar grid frame 123 connecting the upper connecting platform 121 and the lower supporting platform 122.

[0051] Both the upper and lower ends of the columnar grid frame 123 are open. The columnar grid frame 123 encloses a column-shaped air inlet passage, and the open end at the top of the columnar grid frame 123 is communicated with the body air inlet 200 of the body assembly.

[0052] The filter screen of the filter screen component 11 is used to wrap the columnar grid frame 123. External dust is filtered by the filter screen and then enters the wind wheel chamber 223 through the air inlet passage enclosed by the columnar grid frame 123, and then is discharged from the annular air outlet 220.

[0053] Further, a filter screen placement groove 120 is defined between the bottom surface of the upper connection platform 121 of the filter screen support 12, the top surface of the lower support platform 122, and the outer peripheral wall of the columnar grid frame 123. When the filter screen component 11 wraps the columnar grid frame 123, it can be snapped into the filter screen placement groove 120. The filter screen placement groove 120 is used to assemble the filter screen component 11 on the filter screen support 12, and this structure realizes the compactness of the assembly of the filter screen component 11 and the filter screen support 12.

[0054] To achieve the convenience of connection between the filter screen fixing frame 111 and the filter screen component, as Figure 9 shown, in some embodiments, the filter screen support 12 is provided with guide ribs 124, and the filter screen fixing frame 111 is provided with sliding grooves 112. The filter screen fixing frame 111 can be snapped into the filter screen placement groove 120 through the cooperation of the guide ribs 124 and the sliding grooves 112.

[0055] Preferably, in some embodiments, the guide ribs 124 on the filter screen support 12 are provided on the bottom surface of the upper connection platform 121 and the top surface of the lower support platform 122, and the sliding grooves 112 on the filter screen fixing frame 111 are provided on its top surface and bottom surface.

[0056] To achieve the convenience of connection between the filter screen component and the filter screen fixing frame 111, as Figure 7 shown, in some embodiments, the filter screen fixing frame 111 and the second end of the filter screen component are respectively provided with Velcro for connection.

[0057] Specifically, as Figure 7 and Figure 10 shown, the male part 113 of the Velcro can be provided on the filter screen fixing frame 111, and the female part 114 of the Velcro can be provided at the second end of the filter screen component. After the filter screen component wraps the columnar grid frame 123, the male part 113 and the female part 114 can be directly pasted together, thereby realizing the connection between the filter screen component and the filter screen fixing frame 111.

[0058] Preferably, in some embodiments, the first end of the filter screen component and the filter screen fixing frame 111 can also be connected by a Velcro structure, which can facilitate the installation and disassembly of the entire filter screen component.

[0059] As for the overall structure of the filter screen fixing frame 111, the present invention does not make specific limitations. Preferably, it can be a rectangular structure, and its width is the same as the width of the filter screen placement groove 120. The two ends of the filter screen component are connected to the opposite side walls of the filter screen fixing frame 111.

[0060] Further, as Figure 2As shown, in some embodiments, the filtering module 1 further includes a cloth cover 10 that wraps the filter screen component 11 or the filtering module 1. The entire cloth cover 10 is exposed outside, and the air flow directly passes through the cloth cover 10 and enters the filtering module 1. The large particle dust and hair can be isolated by the cloth cover 10, thereby extending the service life of the main filter screen.

[0061] As Figure 2 shown, in some embodiments, the fuselage assembly includes a fuselage main body 22, an upper fuselage cover 25, a wind wheel cover 21, and a lower fuselage cover 20.

[0062] The fuselage main body 22 is a cylindrical structure with both ends open. A guide plate 221 is provided inside the fuselage main body 22. The guide plate 221 divides the interior of the fuselage main body 22 into an upper cavity and a lower cavity. That is, the guide plate 221 simultaneously forms the bottom of the upper cavity and the top of the lower cavity.

[0063] Further, in this embodiment, the upper fuselage cover 25 is connected to the top of the fuselage main body 22 to seal the upper cavity and form a main control cavity 224 in the upper cavity. The wind wheel motor 28 is fixed in the main control cavity 224, for example, it can be fixed on the guide plate 221. The wind wheel cover 21 is connected to the bottom of the fuselage main body 22 to seal the lower cavity and form a wind wheel cavity 223 in the lower cavity. The inner peripheral wall of the wind wheel cover 21 and the inner peripheral wall of the fuselage main body 22 form the side wall of the fuselage assembly.

[0064] Preferably, the guide plate 221 is integrally funnel-shaped or inverted cone-shaped. The wind wheel motor 28 and the centrifugal wind wheel 23 are located on opposite sides of the guide plate 221. The wind wheel motor 28 can be directly fixed on the guide plate 221. The motor shaft of the wind wheel motor 28 passes through the central through hole on the guide plate 221 and is connected to the centrifugal wind wheel 23. The bottom of the centrifugal wind wheel 23 faces the fuselage air inlet 200, and there is a certain distance between the outer peripheral edge of the centrifugal wind wheel 23 and the inner wall of the wind wheel cover 21.

[0065] The annular air outlet 220 on the fuselage assembly is located above the centrifugal wind wheel 23. During operation, the wind generated by the wind wheel can blow obliquely upward and then be discharged through the air duct and the annular air outlet 220 in sequence.

[0066] Both the wind wheel cover 21 and the lower fuselage cover 20 are annular structures. The top end of the wind wheel cover 21 is connected to the fuselage main body 22, and the bottom end forms a cover body air inlet. The lower fuselage cover 20 is used to connect the fuselage main body 22 and the filtering module 1. The top end of the lower fuselage cover 20 is connected to the fuselage main body 22 or the wind wheel cover 21, and the bottom end forms a fuselage air inlet 200 opposite to the cover body air inlet.

[0067] As Figure 1 、 Figure 3 and Figure 4As shown, there are multiple annular grilles 222 on the outer peripheral wall of the fuselage assembly. The multiple annular grilles 222 are spaced apart in the vertical direction, and an annular air outlet 220 is defined between two adjacent annular grilles 222. Each annular grille 222 is rotatably connected to the fuselage main body 22 and can rotate up and down relative to the fuselage main body 22 respectively, so as to adjust the air outlet direction.

[0068] As Figure 5 and Figure 6 shown, by setting the inclination angles of the multiple annular grilles 222, the annular grilles 222 can be combined according to the set inclination angles, so as to change the air outlet direction.

[0069] In some embodiments, two adjacent annular grilles 222 are connected by a reinforcing rib. The annular grille 222 can be rotatably connected to the fuselage main body 22, and the multiple annular grilles 222 can rotate up and down synchronously, so as to adjust the exhaust direction of the annular air outlet 220 at any time.

[0070] Furthermore, the main machine module 2 further includes a main control component. The main control component is electrically connected to the wind wheel motor 28, and the main control component is also arranged in the main control cavity 224 and above the wind wheel motor 28. The main control component includes a main control board 26 and a main control board fixing bracket 24. The main control board 26 is fixed in the main control cavity 224 through the main control board fixing bracket 24. An operation panel 27 connected to the main control board 26 is provided on the upper cover 25 of the fuselage of the fuselage assembly. The user can control the operation of the entire air filter through the operation panel 27.

[0071] In some embodiments, the main machine module 2 further includes a sensor 29 for detecting the PM2.5 value. The sensor 29 can be fixed on the lower cover 20 of the fuselage and passes through the lower cover 20 of the fuselage to detect the PM2.5 value of the wind entering the lower cover 20 of the fuselage. The sensor 29 can be connected to the main control board 26 on the main machine module 2. When the PM2.5 value of the wind entering the air duct is detected to be too large through the sensor 29, an alarm signal can be sent through the main control board 26, so as to remind the user to pay attention to the surrounding environment or detect whether there is a malfunction in the filtering component, etc.

[0072] The above embodiments are only exemplary embodiments of the present invention and are not used to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present invention.

Claims

1. An air purifier, characterized in that: include: A host module (2) comprises a fuselage component and a fan component arranged on the fuselage component, wherein the fuselage component has a wind wheel cavity (223), the cavity top of the wind wheel cavity (223) is a downwardly protruding guide plate (221), the guide plate (221) and the side wall of the wind wheel cavity (223) form an air duct, the outer peripheral wall of the fuselage component is provided with an annular air outlet (220) arranged around the guide plate (221), and the bottom of the fuselage component is provided with a fuselage The fan assembly comprises a wind wheel motor (28) and a centrifugal wind wheel (23) both of which are arranged vertically, the centrifugal wind wheel (23) being located in the wind wheel cavity (223) and below the guide plate (221), the wind wheel motor (28) being connected to the centrifugal wind wheel (23), and the centrifugal wind wheel (23) being able to discharge the wind entering the wind wheel cavity (223) along the wind duct through the annular air outlet (220) when the centrifugal wind wheel (23) rotates; A filter module (1) is arranged below the fuselage assembly and is used to filter the wind entering the wind wheel cavity (223).

2. An air purifier according to claim 1, characterized in that: The filter module (1) comprises a filter support (12) and a filter component (11) wrapping the filter support (12); the filter support (12) is connected to the fuselage component; the filter component (11) comprises a filter element and a filter fixing frame (111); the filter element is a rectangular parallelepiped structure formed by combining a plurality of pleated portions (110); a first end of the filter element is connected to the filter fixing frame (111); the filter fixing frame (111) is detachably connected to the filter support (12); and a second end of the filter element is detachably connected to the filter fixing frame (111).

3. An air purifier according to claim 2, characterized in that: The filter support (12) is provided with a guide rib (124), the filter fixing frame (111) is provided with a slide groove (112), and the filter fixing frame (111) cooperates with the slide groove (112) and the guide rib (124) to achieve a detachable connection with the filter support (12).

4. An air purifier as claimed in claim 3, characterized in that: The filter support (12) comprises an upper connecting platform (121) and a lower supporting platform (122), and a columnar grid frame (123) located between the upper connecting platform (121) and the lower supporting platform (122), wherein the top open end of the columnar grid frame (123) is connected to the air inlet (200) of the fuselage; A filter placement groove (120) is defined between the bottom surface of the upper connecting platform (121), the top surface of the lower supporting platform (122) and the outer peripheral wall of the columnar grid frame (123); the filter component (11) wraps around the columnar grid frame (123) and is inserted into the filter placement groove (120).

5. An air purifier as claimed in claim 4, characterized in that: The bottom surface of the upper connecting platform (121) and the top surface of the lower supporting platform (122) are respectively provided with the guide ribs (124), and the top surface and the bottom surface of the filter screen fixing frame (111) are respectively provided with the sliding grooves (112).

6. An air purifier according to claim 2, characterized in that: The filter fixing frame (111) and the second end of the filter element are respectively provided with Velcro for connection.

7. An air purifier according to claim 2, characterized in that: The filter module (1) further comprises a cloth cover (10), wherein the cloth cover (10) wraps the filter screen component (11).

8. An air purifier according to claim 1, characterized in that: The fuselage assembly comprises a fuselage body (22), a fuselage upper cover (25), a wind wheel cover (21), and a fuselage lower cover (20); the fuselage body (22) is a cylindrical structure with both ends open; the guide plate (221) is arranged in the fuselage body (22); the guide plate (221) divides the interior of the fuselage body (22) into an upper chamber and a lower chamber; The upper cover (25) of the fuselage is connected to the top of the fuselage body (22) to cover the upper cavity, so that the upper cavity forms a main control cavity (224), and the wind wheel motor (28) is arranged in the main control cavity (224); the wind wheel cover (21) is connected to the bottom of the fuselage body (22) to cover the lower cavity, so that the lower cavity forms the wind wheel cavity (223), the inner wall of the wind wheel cover (21) and the inner wall of the fuselage body (22) form the side wall of the fuselage assembly, and the plurality of annular air outlets (220) are respectively arranged on the fuselage body (22); The wind wheel cover (21) and the fuselage lower cover (20) are both annular structures; the fuselage lower cover (20) is used to connect the fuselage main body (22) and the filter module (1); and the bottom end of the fuselage lower cover (20) forms the fuselage air inlet (200).

9. An air purifier according to claim 8, characterized in that: A plurality of annular grilles (222) are provided on the outer peripheral wall of the fuselage body (22); the plurality of annular grilles (222) are arranged at intervals in the vertical direction, and the annular air outlet (220) is defined between two adjacent annular grilles (222).

10. An air purifier according to claim 8, characterized in that: The host module (2) also includes a main control component, the main control component is electrically connected to the wind wheel motor (28), the main control component is arranged in the main control cavity (224), and the upper cover (25) of the fuselage is provided with an operation panel (27) connected to the main control component.

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