Air nozzle assembly of air blower and air blower

By designing a rotating nozzle assembly and utilizing an eccentric air outlet and air guide channel structure, the problem of insufficient airflow area in hair dryers was solved, resulting in faster and more even hair drying and improved user experience.

CN120859263APending Publication Date: 2025-10-31广东美西科技有限公司
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Patent Information

Application Number
CN202410542383.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-04-30
Publication Date
2025-10-31

AI Technical Summary

Technical Problem

Existing hair dryers cannot effectively expand the airflow area, resulting in low drying efficiency for users.

Method used

Design a rotating nozzle assembly with the air outlet eccentrically positioned relative to the mounting base. The air outlet is rotated around the central axis by airflow or motor drive. Combined with the design of the air guide channel and grille, the blowing area can be expanded and flexibly adjusted.

Benefits of technology

It effectively expands the airflow range, improves drying efficiency, saves time, and saves energy through the automatic rotation function, enhancing ease of use and drying effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of hair dryers, and provides an air nozzle assembly of a hair dryer and the hair dryer. According to the embodiment of the invention, the tuyere assembly of the blower comprises a mounting seat and a rotary tuyere, the rotary tuyere is rotatably connected to the mounting seat, an air outlet of the rotary tuyere is eccentrically arranged relative to the mounting seat, and the air outlet of the rotary tuyere is suitable for rotating around a central shaft of the mounting seat under the condition that the rotary tuyere rotates. According to the tuyere assembly in the embodiment of the invention, the air outlet of the rotary tuyere can rotate around the central axis of the mounting base relative to the mounting base in the using process, the blowing area of the hair dryer is effectively enlarged, a wider area can be covered, and due to the fact that the blowing area is increased, a user can blow hair more quickly in the using process, time is saved, and the user experience is improved. The hair drying efficiency is improved.
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Description

Technical Field

[0001] This invention relates to the field of hair dryer technology, and more particularly to a hair dryer nozzle assembly and a hair dryer. Background Technology

[0002] Currently, hair dryers, as an important part of personal care and beauty appliances, have become an indispensable product in people's daily lives. Hair dryers not only dry hair but also have multiple functions, such as hot and cold air switching, negative ion generation, and wind speed and temperature adjustment, meeting users' different hairstyle needs and hair care requirements. As users continue to focus on the hair drying experience, improving the drying effect of hair dryers has become a crucial consideration in hair dryer design. However, few hair dryers on the market currently offer an expanded airflow area, resulting in unmet user needs. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in related technologies. To this end, this invention proposes a nozzle assembly for a hair dryer, addressing the deficiency of existing hair dryers in their inability to expand the blowing area.

[0004] The present invention also proposes a hair dryer.

[0005] A nozzle assembly for a hair dryer according to a first aspect embodiment of the present invention includes:

[0006] Mounting base;

[0007] A rotating nozzle is rotatably connected to the mounting base. The air outlet of the rotating nozzle is eccentrically positioned relative to the mounting base. When the rotating nozzle rotates, the air outlet of the rotating nozzle is adapted to rotate around the central axis of the mounting base.

[0008] According to the embodiment of the hair dryer, the nozzle assembly of the hair dryer allows the air outlet of the rotating nozzle to rotate relative to the mounting base around the central axis of the mounting base during use, effectively expanding the blowing area of ​​the hair dryer and covering a wider area. Due to the increased blowing area, users can dry their hair faster, saving time and improving drying efficiency.

[0009] According to one embodiment of the present invention, the rotating nozzle includes a first mating part, an air guiding component, and a plurality of grille plates. The first mating part and the grille plates are disposed at the air outlet of the air guiding component. The first mating part and the mounting base are rotatably connected. The air guiding component and the first mating part are connected through the grille plates. The grille plates are provided with at least two different length specifications.

[0010] According to one embodiment of the present invention, the air guiding component includes an air inlet, an air guiding channel, and an air outlet, wherein the air guiding channel connects the air inlet and the air outlet, and the air outlet is eccentrically disposed relative to the air inlet.

[0011] According to one embodiment of the present invention, the air guiding channel is constricted along the direction from the air inlet of the air guiding component to the air outlet of the air guiding component.

[0012] According to one embodiment of the present invention, the angle between the grille and the cross-section of the air outlet is different, so that the airflow interacts with the grille to generate different forces that drive the rotating nozzle to rotate.

[0013] According to one embodiment of the present invention, the grille is movably installed with the air guide component and the first mating part so that the tilt angle between the grille and the air outlet is adjustable.

[0014] According to one embodiment of the present invention, the air outlet of the rotating nozzle is provided with a plurality of grille plates, at least a portion of the grille plates forming a first grille area, the first grille area being adapted to drive the rotating nozzle to rotate relative to the mounting base under the push of airflow.

[0015] According to one embodiment of the present invention, the mounting base and the rotary nozzle are connected by a bearing, one of the mounting base and the rotary nozzle is provided with a mounting hole, the outer ring of the bearing is mounted in the mounting hole, and the inner ring of the bearing is connected to the other of the mounting base and the rotary nozzle.

[0016] According to one embodiment of the present invention, the device further includes a housing, the mounting base is connected to the housing, a mounting cavity is formed between the mounting base and the housing, and the rotary nozzle is at least partially disposed in the mounting cavity.

[0017] A hair dryer according to a second aspect embodiment of the present invention includes the above-described nozzle assembly.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1This is a schematic diagram of the overall assembly structure of a nozzle assembly provided in one embodiment of the present invention;

[0021] Figure 2 This is an exploded structural diagram of a nozzle assembly provided in one embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of a nozzle assembly provided in one embodiment of the present invention;

[0023] Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure along direction A provided in the embodiment;

[0024] Figure 5 This is a schematic diagram of the structure of a rotating air nozzle provided in one embodiment of the present invention;

[0025] Figure 6 yes Figure 5 A schematic diagram of the cross-sectional structure along direction B provided in the embodiment.

[0026] Figure label:

[0027] 110. Mounting base; 101. Central shaft of the mounting base; 120. Housing;

[0028] 200. Rotary nozzle; 201. Air outlet; 202. Air guide channel; 203. Air inlet; 204. Center point of air outlet; 210. First mating part; 220. Air guide component; 230. Grille plate;

[0029] 300. Magnetic suction components;

[0030] 400. Bottom cover;

[0031] 500. Bearings. Detailed Implementation

[0032] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0033] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections, wherein a fixed connection can include an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0035] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0037] The nozzle assembly of the hair dryer according to an embodiment of the present invention is described in reference to... Figures 1 to 4 The nozzle assembly includes a mounting base 110 and a rotating nozzle 200. The rotating nozzle 200 is rotatably connected to the mounting base 110. The air outlet 201 of the rotating nozzle 200 is eccentrically set relative to the mounting base 110. When the rotating nozzle 200 rotates, the air outlet 201 of the rotating nozzle 200 is adapted to rotate around the central axis 101 of the mounting base.

[0038] According to the nozzle assembly of the present invention, during use, the air outlet 201 of the rotating nozzle 200 can rotate relative to the mounting base 110 around the central axis 101 of the mounting base, effectively expanding the blowing area of ​​the hair dryer and covering a wider area. Due to the increased blowing area, users can dry their hair faster during use, saving time and improving hair drying efficiency.

[0039] It is understood that the mounting base 110 is used to mount and support the rotary nozzle 200, which can be mounted to the mounting base 110 via a bearing 500 or other rotatable connection. It should be noted that this invention does not impose specific limitations on the structure of the mounting base 110; the rotary nozzle 200 can be located outside or inside the mounting base 110.

[0040] The eccentric setting of the air outlet 201 of the rotary nozzle 200 relative to the mounting base 110 can be understood as the center point 104 of the air outlet not coinciding with the central axis of the mounting base 110, having a certain offset, so that when the rotary nozzle 200 rotates, the air outlet 201 can rotate around the central axis of the mounting base 110, thereby realizing flexible adjustment of the blowing area.

[0041] It should be noted that the air outlet 201 of the rotary nozzle 200 can be a regular shape. For example, when the air outlet 201 of the rotary nozzle 200 is circular, the center point 104 of the air outlet is the location of the center of the circle; when the air outlet 201 of the rotary nozzle 200 is elliptical, the center point 104 of the air outlet is the center point of the ellipse. Of course, the air outlet 201 of the rotary nozzle 200 can also be other irregular shapes. This invention does not impose specific limitations on the shape of the air outlet 201 of the rotary nozzle 200. Irregular shapes also have a geometric center point, which will not be elaborated here.

[0042] It should be noted that the straight line passing through the center point 104 of the air outlet and perpendicular to the air outlet 201 is the central axis of the air outlet 201. The central axis of the rotating nozzle 200 and the central axis of the mounting base 110 can be parallel, intersecting, or not intersecting. The relationship between the central axis of the air outlet 201 and the central axis of the mounting base 110 is a geometric relationship in a mathematical sense, which will not be elaborated here.

[0043] For example, when the central axis of the air outlet 201 and the central axis of the mounting base 110 are parallel to each other, the rotating nozzle 200 can maintain a stable blowing effect during rotation. The overall direction of the airflow blown from the air outlet 201 is parallel to the axial direction of the central axis of the mounting base 110, thereby maintaining the continuity and stability of the blowing. Furthermore, when the central axis of the air outlet 201 is parallel to the central axis of the mounting base 110, the stability of the entire nozzle assembly can be improved, reducing the swaying and shaking of the rotating nozzle 200 during rotation and ensuring a smoother blowing process.

[0044] For example, when the central axis of the air outlet 201 intersects with the central axis of the mounting base 110, a wider range of rotation can be achieved. This design allows the air outlet 201 to rotate within a larger angle range, meeting the user's needs for various blowing angles. The intersecting arrangement enables the air outlet 201 to blow air at multiple angles in both vertical and horizontal directions. Users can adjust the blowing direction by rotating the nozzle 200, achieving a more precise and personalized blowing effect. The intersecting arrangement of the central axis of the air outlet 201 and the central axis of the mounting base 110 increases the flexibility of the air outlet 201's rotation, allowing users to freely adjust the angle of the air outlet 201 as needed to meet different blowing requirements and improve ease of use. The intersecting arrangement also makes better use of space, resulting in a more compact design for the entire nozzle assembly, saving space and making it suitable for various sizes of blower devices.

[0045] For example, a wider range of rotation can be achieved when the central axis of the air outlet 201 and the central axis of the mounting base 110 do not intersect, which will not be elaborated here.

[0046] In one embodiment, the eccentricity angle of the rotating nozzle 200 is adjustable, allowing the central axis of the air outlet 201 and the central axis of the mounting base 110 to switch from parallel to intersecting or non-intersecting, or vice versa. This allows the user to adjust the air outlet area of ​​the rotating nozzle 200 according to their needs.

[0047] In one embodiment, the eccentricity of the rotating nozzle 200 is adjustable, making the distance between the central axis of the air outlet 201 and the central axis of the mounting base 110 adjustable. Users can adjust the air outlet area according to their own needs, thereby improving the convenience of use.

[0048] It should be noted that the rotational power of the rotary nozzle 200 can be generated when the airflow passes by (an embodiment of generating power is described later), or it can be generated by a motor drive. This invention does not impose specific limitations on the rotational power of the rotary nozzle 200.

[0049] According to one embodiment of the present invention, please refer to Figures 3 to 6 The rotary nozzle 200 includes a first mating part 210, an air guide component 220 and several grille plates 230. The first mating part 210 and the grille plates 230 are disposed at the air outlet 201 of the air guide component 220. The first mating part 210 and the mounting base 110 are rotatably connected. The air guide component 220 and the first mating part 210 are connected through the grille plates 230.

[0050] Understandably, the coaxial arrangement of the central axis of the first mating part 210 and the mounting base 110 can increase the stability of the air outlet, reduce swaying during rotation, and ensure a smoother air blowing process. In other words, the first mating part 210 and the mounting base 110 are rotatably connected, and the center point 104 of the first mating part 210 and the air outlet is eccentrically set.

[0051] It is understood that the air guide component 220 has an air guide channel 202 inside, through which airflow can pass and exit from the air outlet 201 of the air guide channel 202. The grille plate 230 can help guide the airflow to flow smoothly out of the air outlet 201 of the air guide component 220, ensuring the concentration and uniformity of the air force and improving the blowing effect.

[0052] According to embodiments of this application, the grille 230 includes at least two different length specifications. Different lengths of grille can affect the airflow speed and wind force distribution, thereby adjusting the blowing effect. Setting grilles of different lengths can also enable the rotary nozzle 200 to rotate autonomously.

[0053] It is understandable that when gas passes through the grille plate 230, the longer grille plate 230 experiences a greater pushing force than the shorter grille plate 230, creating a rotational torque that causes the rotary nozzle 200 to rotate autonomously.

[0054] Furthermore, the different distribution densities of the grille plates 230 can also enable the rotary nozzle 200 to rotate autonomously. It is understandable that the difference in grille density will affect the driving force of the gas on the grille plates 230. The higher density grille plates 230 will receive a greater driving force from the gas, thereby enhancing the generation of rotational torque and prompting the rotary nozzle 200 to rotate more effectively on its own.

[0055] According to one embodiment of the present invention, please refer to Figures 1 to 6 The air guiding component 220 includes an air inlet 203, an air guiding channel 202 and an air outlet 201. The air guiding channel 202 connects the air inlet 203 and the air outlet 201, wherein the air outlet 201 is eccentrically positioned relative to the air inlet 203.

[0056] Understandably, by setting the air outlet 201 eccentrically relative to the air inlet 203, the airflow speed and pressure can be increased, the airflow direction and velocity can be changed, which helps to improve the transmission efficiency of wind power and ensure that the airflow can effectively reach the target area. It can also generate a rotational torque, which can cause the air guide component 220 to rotate autonomously, achieving more effective wind direction adjustment and control.

[0057] According to one embodiment of the present invention, the air guide channel 202 is constricted along the direction from the air inlet 203 of the air guide component 220 to the air outlet 201 of the air guide component 220.

[0058] Understandably, the tapered design of the air guide channel 202 gradually reduces its cross-sectional area as airflow passes through, thereby increasing airflow velocity. This enhances airflow speed and pressure, improving the blowing effect. The tapered design also guides airflow more effectively, reducing energy loss and improving ventilation.

[0059] It is understandable that the constricted shape can be a trumpet-shaped structure that gradually reduces the cross-sectional area of ​​the air guide channel 202, or a stepped structure that reduces the cross-sectional area of ​​the air guide channel 202 in a step-like manner; no specific restrictions are imposed here.

[0060] According to one embodiment of the present invention, the angle between the cross-section of the grille plate 230 and the air outlet 201 is different, so that the airflow interacts with the grille plate 230 to generate different forces to drive the rotating nozzle 200 to rotate.

[0061] It is understandable that, since the cross-section of the grille 230 and the air outlet 201 has a certain angle, the airflow generates thrust after interacting with the grille, which in turn causes the air nozzle to rotate and generate different speeds, thereby continuously changing the air outlet direction and expanding the air outlet area.

[0062] In one embodiment, the angle between the grille of different lengths and the air outlet 201 is different. By using grilles of different lengths and angles, the rotational torque effect when the airflow passes through is more pronounced, making it easier for the rotary nozzle 200 to rotate autonomously.

[0063] According to one embodiment of the present invention, the grille 230 is movably mounted with the air guide component 220 and the first mating part 210 so that the tilt angle between the grille and the air outlet 201 is adjustable. It is understood that the air outlet effect of the rotating nozzle 200 can be adjusted by adjusting the tilt angle between the grille and the air outlet 201. The air outlet effect includes the air outlet angle, airflow speed and air outlet range, and the rotation speed of the rotating nozzle 200 can also be adjusted.

[0064] Understandably, by adjusting the tilt angle between the grille and the air outlet 201, the direction and speed of airflow can be better controlled. Different tilt angles between different grilles and the air outlet 201 also result in different pushing forces on different grilles when airflow passes through, generating a rotational torque that causes the rotary nozzle 200 to rotate autonomously.

[0065] According to one embodiment of the present invention, the air outlet 201 of the rotary nozzle 200 is provided with a plurality of grille plates 230, at least a portion of the grille plates 230 forming a first grille area, the first grille area being adapted to drive the rotary nozzle 200 to rotate relative to the mounting base 110 under the push of airflow.

[0066] It is understandable that by setting a first grille area with a grille plate 230 at the air outlet 201, when the airflow passes through the grille plate 230, the longer grille plate is subjected to a greater pushing force than the shorter grille plate, thereby forming a rotational torque, which allows the rotating nozzle 200 to rotate automatically under the push of the airflow.

[0067] Because the rotary nozzle 200 rotates automatically under the influence of airflow, it does not require an additional motor, saving energy and reducing operating costs. The automatic rotation function ensures a more even distribution of airflow across the blowing area, improving drying efficiency and guaranteeing faster and more even hair drying.

[0068] The grille panels in the first grille area are tilted in the same direction. In other words, the grille panels in the first grille area are all tilted clockwise or counterclockwise at the air outlet 201.

[0069] According to one embodiment of the present invention, the mounting base 110 and the rotary nozzle 200 are connected by a bearing 500. One of the mounting base 110 and the rotary nozzle 200 is provided with a mounting hole. The outer ring of the bearing 500 is mounted in the mounting hole, and the inner ring of the bearing 500 is connected to the other of the mounting base 110 and the rotary nozzle 200.

[0070] Understandably, the connection between the mounting base 110 and the rotary nozzle 200 via the bearing 500 helps ensure that the rotary nozzle 200 can rotate smoothly relative to the mounting base 110.

[0071] According to one embodiment of the present invention, the device further includes a housing 120, a mounting base 110 connected to the housing 120, and a mounting cavity formed between the mounting base 110 and the housing 120. The rotary nozzle 200 is at least partially disposed in the mounting cavity. It is understood that the mounting base 110, composed of the mounting base 110 and the housing 120, provides a stable installation environment for the rotary nozzle 200. Simultaneously, the mounting cavity also provides a certain degree of protection for the rotary nozzle 200, preventing external factors (such as dust, moisture, etc.) from directly contacting the rotary nozzle 200, thereby extending its service life.

[0072] In one embodiment, the rotary nozzle 200 is partially located in the mounting cavity, and the air outlet 201 of the rotary nozzle 200 extends out of the mounting cavity. By extending out of the mounting cavity, the air outlet 201 is not restricted by the mounting cavity, allowing for a larger air blowing area.

[0073] Of course, the rotating nozzle 200 can also be entirely located in the mounting cavity, which can provide protection for the rotating nozzle 200 and prevent users from accidentally touching the rotating nozzle.

[0074] A hair dryer according to a second aspect embodiment of the present invention includes the above-described nozzle assembly. It is understood that the hair dryer, by including the above-described nozzle assembly, possesses all the technical effects of the above-described nozzle assembly, which will not be elaborated further here.

[0075] In one embodiment, the hair dryer includes a body, and a nozzle assembly is detachably mounted to the air outlet of the body. Specifically, the nozzle assembly can be detachably connected to the body via magnetic attraction. Of course, the nozzle assembly can also be detachably connected to the body via other methods such as snap-fit ​​connection or screw connection, and this invention does not specifically limit this method.

[0076] In one embodiment, at least one of the housing and the mounting base 110 is provided with a magnetic attraction component 300, and the other is provided with a metal part or another magnetic attraction component 300. When the mounting base 110 is installed on the housing, the magnetic attraction force can firmly connect the magnetic attraction component 300 and the metal part or another magnetic attraction component 300 together.

[0077] In one embodiment, the nozzle assembly further includes a bottom cover 400 for mounting the magnetic part 300 of the nozzle assembly to the bottom of the mounting base 110.

[0078] Finally, it should be noted that the above embodiments are only for illustrating the present invention and not for limiting the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should be covered within the scope of the claims of the present invention.

Claims

1. A nozzle assembly for a hair dryer, characterized in that, include: Mounting base (110); A rotating nozzle (200) is rotatably connected to the mounting base (110). The air outlet (201) of the rotating nozzle (200) is eccentrically arranged relative to the mounting base (110). When the rotating nozzle (200) rotates, the air outlet (201) of the rotating nozzle (200) is adapted to rotate around the central axis of the mounting base (110).

2. The nozzle assembly according to claim 1, characterized in that, The rotating nozzle (200) includes a first mating part (210), an air guide component (220), and a plurality of grille plates (230). The first mating part (210) and the mounting base (110) are rotatably connected. The air guide component (220) and the first mating part (210) are connected through the grille plates (230). The grille plates (230) have at least two different length specifications.

3. The nozzle assembly according to claim 2, characterized in that, The air guide component (220) includes an air inlet (203), an air guide channel (202), and an air outlet (201). The air guide channel (202) connects the air inlet (203) and the air outlet (201), wherein the air outlet (201) is eccentrically arranged relative to the air inlet (203).

4. The nozzle assembly according to claim 3, characterized in that, Along the direction from the air inlet (203) of the air guide component (220) to the air outlet (201) of the air guide component (220), the air guide channel (202) is constricted.

5. The nozzle assembly according to claim 2, characterized in that, The angle between the cross-section of the grille (230) and the air outlet (201) is different, so that the airflow interacts with the grille (230) to generate different forces that drive the rotating nozzle (200) to rotate.

6. The nozzle assembly according to claim 2, characterized in that, The grille (230) is movably installed with the air guide component (220) and the first mating part (210) so that the tilt angle between the grille (230) and the air outlet (201) is adjustable.

7. The nozzle assembly according to claim 1, characterized in that, The air outlet (201) of the rotary nozzle (200) is provided with a plurality of grille plates (230), at least a portion of the grille plates (230) forming a first grille area, which is adapted to drive the rotary nozzle (200) to rotate relative to the mounting base (110) under the push of airflow.

8. The nozzle assembly according to any one of claims 1 to 7, characterized in that, The mounting base (110) and the rotary nozzle (200) are connected by a bearing (500). One of the mounting base (110) and the rotary nozzle (200) is provided with a mounting hole. The outer ring of the bearing (500) is mounted in the mounting hole, and the inner ring of the bearing (500) is connected to the other of the mounting base (110) and the rotary nozzle (200).

9. The nozzle assembly according to any one of claims 1 to 7, characterized in that, It also includes a housing (120), the mounting base (110) is connected to the housing (120), a mounting cavity is formed between the mounting base (110) and the housing (120), and the rotary nozzle (200) is at least partially disposed in the mounting cavity.

10. A hair dryer, characterized in that, The nozzle assembly includes any one of claims 1 to 9.