Air nozzle structure with light transmitting function and air blower

By setting a light-transmitting hole at the air outlet of the nozzle body of the photoelectric hair dryer, the problem of light energy blockage is solved, and the synchronous action of light energy and airflow is achieved, improving the efficiency of phototherapy and user experience.

CN224098915UActive Publication Date: 2026-04-10DONGGUAN DONGJING ELECTRIC APPLIANCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing solar hair dryer nozzle designs, while pursuing efficient hair drying, block the path of light energy, causing the light therapy function to fail and limiting the product's market competitiveness.

Method used

Design a nozzle structure with light transmission function. By setting a light transmission hole at the air outlet of the nozzle body, light energy can be ensured to pass through the nozzle without obstruction and act on the user's hair synchronously with the airflow.

Benefits of technology

This achieves a perfect combination of light energy and airflow, improving phototherapy efficiency and user experience, and enhancing the product's market competitiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an air nozzle structure with a light transmitting function and a blower. The tuyere structure comprises a tuyere body, the front side of the tuyere body extends to form an air outlet end, the rear side of the tuyere body is provided with an air inlet, the air outlet end is communicated with the air inlet, and at least one side, located at the air outlet end, of the tuyere body is provided with a light hole. According to the utility model, the light hole is ingeniously arranged on at least one side of the air outlet end of the tuyere body, so that light emitted by the light energy hair dryer can penetrate through the tuyere without hindrance, and the light energy and the air flow blown out from the air outlet end synchronously act on the hair of a user, and the design not only retains the original phototherapy function of the light energy hair dryer, but also improves the light therapy effect of the light energy hair dryer. Perfect combination of light energy and airflow is also realized, and the use effect and the user satisfaction of the product are improved; besides, the arrangement of the light holes enables the light energy to irradiate the scalp and the hair of the user more directly and more uniformly, thereby preventing the light energy from being shielded by the traditional tuyere design, and improving the efficiency and the effect of phototherapy.
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Description

TECHNICAL FIELD

[0001] The utility model relates to hair dryer technical field especially, it is a kind of wind nozzle structure and hair dryer with light transmission function. BACKGROUND

[0002] In the field of personal care appliances, hair dryer as a common hairdressing tool in daily life, its technical innovation always revolves around the improvement of blow-drying efficiency, the enhancement of user experience and the integration of environmental protection and energy saving concept etc. In recent years, with the rapid development of light energy technology, light energy hair dryer as a new product combining light therapy and fast drying function gradually enters the market, and has received widespread attention from consumers. This kind of hair dryer can release light of specific wavelength, such as infrared or visible light, to promote scalp blood circulation, accelerate hair water evaporation and hair care, by integrating light energy devices (such as LED lamp bead array) in the body.

[0003] However, in the design optimization process of light energy hair dryer, a key technical problem gradually emerges, especially in the design of the air nozzle. The traditional hair dryer air nozzle, especially those designed to improve the drying efficiency by changing the shape of the airflow, such as the air nozzle that guides the circular air outlet into a wide strip-shaped air outlet, encounters challenges when applied to light energy hair dryer. Specifically, this kind of air nozzle usually adopts the way of buckling on the air outlet of hair dryer to fix, and its structure often completely covers the light energy path emitted by light energy device. In this way, the light originally designed to use light energy for scalp care and treatment is completely blocked by the air nozzle, causing the light energy hair dryer to lose its unique light therapy function, greatly weakening the market competitiveness of the product.

[0004] Therefore, the air nozzle design of the light energy hair dryer on the market at present cannot effectively solve the problem of light energy blocking while pursuing high-efficiency drying, limiting the further development of light energy hair dryer in combining light therapy and drying function. In view of this situation, developing a new type of air nozzle design that can maintain high-efficiency flow guiding performance and ensure that light energy can effectively penetrate and not be blocked has become a technical problem to be solved in the field of light energy hair dryer. SUMMARY

[0005] The utility model aims at overcoming the insufficient of prior art, provide a kind of wind nozzle structure and hair dryer with light transmission function.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0007] In a first aspect, this utility model provides a nozzle structure with light transmission function, comprising: a nozzle body, an air outlet extending from the front side of the nozzle body, an air inlet provided on the rear side of the nozzle body, the air outlet being connected to the air inlet, and a light transmission hole provided on at least one side of the nozzle body located at the air outlet.

[0008] In one specific embodiment, the air outlet is provided with a strip-shaped air outlet along the radial direction of the air nozzle body, and the strip-shaped air outlet is connected to the air inlet.

[0009] In one specific embodiment, the nozzle body is provided with light-transmitting holes on both sides of the air outlet end.

[0010] In one specific embodiment, the light-transmitting hole is arranged in a fan shape.

[0011] In one specific embodiment, a positioning protrusion is also provided on the rear side of the nozzle body.

[0012] In one specific embodiment, the positioning protrusion is circular in shape.

[0013] In one specific embodiment, the air inlet is circular in shape.

[0014] In one specific embodiment, a magnetic suction element is also provided on the rear side of the nozzle body.

[0015] In one specific embodiment, a snap-fit ​​protrusion is also provided on the rear side of the nozzle body.

[0016] The advantages of this invention's light-transmitting nozzle structure compared to existing technologies are as follows: By cleverly setting a light-transmitting hole on at least one side of the nozzle body at the air outlet, it ensures that the light energy emitted by the solar hair dryer can pass through the nozzle without obstruction and act on the user's hair synchronously with the airflow blown from the air outlet. This design not only retains the original phototherapy function of the solar hair dryer but also achieves a perfect combination of light energy and airflow, greatly improving the product's performance and user satisfaction. In addition, the setting of the light-transmitting hole allows the light energy to be irradiated more directly and evenly onto the user's scalp and hair, avoiding the obstruction of light energy by traditional nozzle designs, thereby improving the efficiency and effect of phototherapy.

[0017] Secondly, this utility model embodiment provides a hair dryer, including the nozzle structure with light transmission function as described above.

[0018] The utility model discloses a hair dryer, and has the beneficial effects that compared with the prior art: by installing the air nozzle on the light energy hair dryer main part, then through the light transmission hole of the ingenious setting of at least one side of the air nozzle body located at the air outlet end, ensure that the light energy hair dryer can emit light energy unobstructed penetration air nozzle, and with the air flow from the air outlet end blowing on the hair of the user, this design not only retains the original light therapy function of the light energy hair dryer, but also realizes the perfect combination of light energy and airflow, greatly improves the use effect and user satisfaction of the product, in addition, the setting of the light transmission hole makes the light energy more directly, more evenly irradiate to the scalp and hair of the user, avoids the shielding of the light energy of the traditional air nozzle design, thereby improving the efficiency and effect of the light therapy.

[0019] The utility model will be further described below in combination with the drawings and specific embodiments. DRAWINGS

[0020] In order to make the technical scheme in the utility model embodiment more clearly, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0021] Figure 1 The back view schematic diagram of the air nozzle structure with light transmission function provided by the utility model is shown in the figure.

[0022] Figure 2 The front view schematic diagram of the air nozzle structure with light transmission function provided by the utility model is shown in the figure.

[0023] Figure 3 The front view schematic diagram of the air nozzle structure with light transmission function provided by the utility model is shown in the figure.

[0024] Figure 4 The structure schematic diagram of the hair dryer provided by the utility model is shown in the figure. DETAILED DESCRIPTION

[0025] In order to make the technical scheme in the utility model embodiment more clearly, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0026] The technical scheme in the utility model embodiments will be described clearly and completely below in combination with the drawings of the utility model embodiments, obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the utility model.

[0027] In the description of the utility model, it is understood that the directions or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are the directions or positional relationships shown based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0028] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0029] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0030] In the utility model, unless otherwise specifically defined and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or the indirect contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical and inclined upper of the first feature to the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the vertical and inclined lower of the first feature to the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0031] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0032] Referring to Figures 1 to 3 The utility model discloses a wind nozzle structure with light transmission function, including: the wind nozzle body 10, the front side of wind nozzle body 10 extends and has the air outlet 11, the back side of wind nozzle body 10 is equipped with the air inlet 12, the air outlet 11 is connected with the air inlet 12, the wind nozzle body 10 is located at the air outlet 11 at least one side is equipped with the light transmission hole 13.

[0033] Specifically, by the air outlet 11 at least one side of the wind nozzle body 10 is cleverly set up the light transmission hole 13, ensure that the light energy that the hair dryer can penetrate the wind nozzle without hindrance can be emitted, and with the air flow from the air outlet 11 synchronous action on the hair of user, this design not only retains the original light therapy function of light energy hair dryer, also realizes the perfect combination of light energy and airflow, greatly improves the use effect and user satisfaction of product. In addition, the setting of light transmission hole 13 makes light energy can more directly, more evenly irradiate to the scalp and hair of user, avoids the shielding of light energy of traditional wind nozzle design, thereby improves the efficiency and effect of light therapy. In addition, while blowing, the hair dryer can also provide soft lighting effect, so that the user can not only enjoy the fast dry hair, but also feel the comfortable nursing from light energy, this double enjoyment not only improves the user experience, but also increases the market competitiveness of product. In addition, the air outlet 11 of wind nozzle body 10 is communicated with the air inlet 12, guarantees the smooth flow of airflow, and the setting of light transmission hole 13 does not affect the basic function of the wind nozzle, this ingenious structure design makes the wind nozzle practical and beautiful, meets the double needs of user to product function and appearance.

[0034] In an embodiment, the air outlet 11 is provided with a strip-shaped air outlet 111 along the radial direction of the wind nozzle body 10, and the strip-shaped air outlet 111 is communicated with the air inlet 12.

[0035] Specifically, the air nozzle can form a strip-shaped air outlet after the annular air outlet of the light energy hair dryer passes through the air outlet end 11 and blow out along the strip-shaped air outlet 111. That is, on the air outlet end 11, one or more elongated air outlets are arranged along the radial direction of the air nozzle body 10 (i.e., the direction perpendicular to the air nozzle axis), which can be linear, arc-shaped or any other suitable shape depending on the design requirements. The air inlet 12 is the part of the air nozzle connected to the main body of the light energy hair dryer, used to receive the airflow from the hair dryer, and the strip-shaped air outlet 111 is connected to the air inlet 12 to ensure that the airflow can smoothly enter the air inlet 12 and blow out through the strip-shaped air outlet 111. When the light energy hair dryer is working, the airflow enters the air nozzle body 10 through the air inlet 12, and in the air nozzle, the airflow is guided to the air outlet end 11, and at the air outlet end 11, the airflow is further shaped and blown out in the form of a strip-shaped air outlet through the strip-shaped air outlet 111. Due to the design of the strip-shaped air outlet 111, the airflow is more flat and concentrated when blown out, which helps to achieve precise blowing on specific areas.

[0036] More specifically, through the design of the strip-shaped air outlet 111, the airflow is more concentrated and flat when blown out, which can more effectively cover the target area, thereby improving the blowing efficiency. In addition, the strip-shaped air outlet 111 can provide more uniform and softer wind force, reducing the discomfort when blowing; at the same time, this design also enables users to more accurately control the direction and range of blowing, enhancing the user experience. In addition, the design of the strip-shaped air outlet 111 breaks the conventional shape of the air nozzle of the traditional hair dryer, providing a novel and unique appearance design for the light energy hair dryer. This innovative design not only enhances the aesthetic appearance of the product, but also brings a new user experience. In addition, due to the flexibility and adjustability of the design of the strip-shaped air outlet 111, this air nozzle can be applied to a variety of different light energy hair dryer models and purposes. Whether for home use or professional hairdressing, different blowing needs can be met by adjusting the shape and position of the strip-shaped air outlet 111.

[0037] In an embodiment, the air nozzle body 10 is provided with light-transmitting holes 13 on both sides of the air outlet end 11.

[0038] Specifically, the light-transmitting holes 13 are carefully arranged on both sides of the air outlet end 11 of the air nozzle body 10, and the selection of this position aims to ensure that the light energy emitted by the light energy hair dryer can smoothly penetrate the air nozzle while not affecting the normal flow of the airflow. The light-transmitting holes 13 can be designed as single or multiple, and their number and arrangement are determined according to the overall size and shape of the air nozzle. In order to maximize the light energy transmission rate, the light-transmitting holes 13 are usually arranged in a symmetrical or uniform distribution pattern.

[0039] More specifically, the light-transmitting holes 13 arranged on both sides of the air outlet end 11 can significantly reduce the obstruction of the air nozzle body 10 to light energy, thereby improving the light energy transmittance of the light energy hair dryer, which makes the light energy more effectively act on the user's hair and enhances the light therapy effect. In addition, the design of the light-transmitting holes 13 not only improves the light energy transmittance, but also has a positive impact on the airflow distribution. By reasonably arranging the light-transmitting holes 13, the airflow can be guided to be more evenly distributed on the entire air outlet end 11, thereby achieving comprehensive and uniform blowing of the hair. In addition, the higher light energy transmittance and the more optimized airflow distribution together improve the user's experience, and the user can enjoy the effect of comfortable care from the light energy while enjoying the fast drying.

[0040] In an embodiment, the light-transmitting holes 13 are arranged in a fan shape.

[0041] Specifically, the light-transmitting holes 13 are designed in a fan shape, which means that they are not simply circular, elliptical or rectangular, but have curved edges similar to the profile of a scallop or a fan. This design aims to maximize the light-transmitting area while maintaining the structural integrity and aesthetics of the air nozzle body 10. The fan-shaped light-transmitting holes 13 are usually symmetrically distributed along both sides of the air outlet end 11, or are arranged according to the direction of the light energy emitted by the light energy hair dryer. This arrangement ensures that the light energy can uniformly and effectively penetrate the air nozzle body 10 and act on the user's hair.

[0042] More specifically, the design of the fan-shaped light-transmitting holes 13 makes the light-transmitting area larger than that of traditional shapes such as circles, rectangles, etc., thereby improving the light energy transmittance of the light energy hair dryer, which helps to enhance the light therapy effect and enable the user to feel the comfortable care from the light energy while enjoying the fast drying.

[0043] In an embodiment, the rear side of the air nozzle body 10 is also provided with a positioning protrusion 14.

[0044] Specifically, when installing the air nozzle, the user only needs to align the positioning protrusion 14 on the air nozzle body 10 with the slot or hole on the main body of the light energy hair dryer, and gently push the air nozzle until the positioning protrusion 14 is completely inserted and fixed in the slot. That is, the introduction of the positioning protrusion 14 makes the installation process of the air nozzle simpler and faster, and the user can easily fix the air nozzle on the main body of the light energy hair dryer without complex operations or tools.

[0045] In an embodiment, the positioning protrusion 14 is circular in shape.

[0046] Specifically, the design of the circular positioning protrusion 14 makes the installation process of the air nozzle more simple and efficient, allowing users to easily secure the air nozzle on the light energy hair dryer body without the need for complex operations or tools, greatly shortening the installation time and improving work efficiency. In addition, the close fit between the circular positioning protrusion 14 and the slot ensures a stable connection between the air nozzle and the light energy hair dryer body. This design helps to prevent the air nozzle from loosening or falling off during use due to vibration or external forces, thereby extending the service life of the product. In addition, the smooth edges of the circular positioning protrusion 14 reduce friction and wear between the slot, reducing the risk of damage due to long-term use, which helps to maintain the good performance and appearance of the product and improve user satisfaction.

[0047] In an embodiment, the air inlet 12 is circular in shape.

[0048] Specifically, the design of the circular air inlet 12 helps to reduce turbulence and vortex of the airflow when entering the air nozzle, making the airflow more stable and uniform, which helps to improve the efficiency of the airflow and speed up the drying speed of the hair. In addition, the circular air inlet 12 helps to reduce the noise generated by the airflow, providing a more comfortable user experience, especially when the light energy hair dryer needs to be used for a long time.

[0049] In an embodiment, the rear side of the air nozzle body 10 is also provided with a magnetic attraction piece 15.

[0050] Specifically, the air nozzle body 10 is magnetically connected to the light energy hair dryer body through the magnetic attraction piece 15, and the air nozzle can be adjusted by 360 degrees along the light energy hair dryer body. That is, when installing the air nozzle, the user only needs to bring the air nozzle body 10 close to the light energy hair dryer body, and the magnetic attraction piece 15 will automatically attract and adhere together. Due to the action of magnetic force, the air nozzle body 10 can be firmly fixed on the light energy hair dryer body without the need for additional fasteners or tools. When disassembling the air nozzle, the user only needs to gently pull the air nozzle body 10, and the magnetic force connection between the magnetic attraction pieces 15 will be broken, allowing the air nozzle body 10 to be easily removed from the light energy hair dryer body. This design makes the disassembly process also simple and efficient without the need for complex operations or tools.

[0051] More specifically, the design of the magnetic attraction piece 15 simplifies the connection process between the air nozzle body 10 and the light energy hair dryer body, making installation and disassembly more simple and efficient. At the same time, the 360-degree rotational adjustment mechanism allows users to easily adjust the angle and position of the air nozzle as needed, improving the convenience and flexibility of use. In addition, the magnetic force connection between the magnetic attraction pieces 15 ensures a stable connection between the air nozzle body 10 and the light energy hair dryer body. Even in the case of strong wind, the air nozzle body 10 can remain stable and is not easily detached or loosened.

[0052] In an embodiment, the rear side of the nozzle body 10 is further provided with a buckle protrusion (not shown in the figure).

[0053] Specifically, the light energy hair dryer body is provided with a buckle slot corresponding to the buckle protrusion. When connecting the nozzle body 10 and the light energy hair dryer body, the user only needs to align the buckle protrusion with the buckle slot, and gently push the nozzle body 10 to slide along the direction of the buckle slot until the buckle protrusion is completely embedded in the buckle slot. At this time, a stable connection is formed between the nozzle body 10 and the light energy hair dryer body. When disassembling the nozzle, the user only needs to press one side of the nozzle body 10 (usually the side away from the buckle slot) and gently pull it outward, so that the buckle protrusion is pulled out of the buckle slot. This design makes the disassembly process also simple and fast, without the need for complex operations or tools.

[0054] More specifically, the close fit of the buckle protrusion and the buckle slot ensures a stable connection between the nozzle body 10 and the light energy hair dryer body. Even in the case of strong wind, the nozzle body 10 can remain stable and is not easy to fall off or loosen. In addition, the design of the buckle protrusion and the buckle slot simplifies the connection process between the nozzle body 10 and the light energy hair dryer body. The user can complete the installation and disassembly operation without using additional fasteners or tools, thereby improving the convenience of use.

[0055] Referring to Figure 4 The utility model discloses a hair dryer further discloses a nozzle structure with light transmission function as described above.

[0056] Specifically, by installing the nozzle on the light energy hair dryer body, and then by ingeniously arranging the light transmission hole 13 on at least one side of the nozzle body 10 located at the air outlet end 11, it is ensured that the light energy emitted by the light energy hair dryer can penetrate the nozzle without obstruction and act on the user's hair synchronously with the airflow blown out from the air outlet end 11. This design not only retains the original phototherapy function of the light energy hair dryer, but also realizes the perfect combination of light energy and airflow, greatly improving the use effect and user satisfaction of the product. In addition, the arrangement of the light transmission hole 13 enables the light energy to be more directly and uniformly irradiated onto the user's scalp and hair, avoiding the shielding of light energy by the traditional nozzle design, thereby improving the efficiency and effect of phototherapy.

[0057] Specifically, the light energy hair dryer body adopts the existing disclosed technology, which will not be described in detail here.

[0058] The above embodiment is a preferred implementation scheme of the utility model, in addition to this, the utility model can also be realized in other ways, and any obvious replacement without departing from the technical scheme concept is within the protection scope of the utility model.

Claims

1. A vent structure with light-transmitting function, characterized in that, The air nozzle structure with light transmission function comprises: an air nozzle body, a front side of the air nozzle body extends with an air outlet end, a rear side of the air nozzle body is provided with an air inlet, the air outlet end is communicated with the air inlet, and the air nozzle body is provided with a light transmission hole on at least one side of the air outlet end.

2. The structure of the blow nozzle with light transmission function according to claim 1, characterized in that, The air outlet end is provided with a strip-shaped air outlet along the radial direction of the air nozzle body, and the strip-shaped air outlet is communicated with the air inlet.

3. The structure of the air nozzle with light transmission function according to claim 1, characterized in that, The air nozzle body is provided with a light transmission hole on both sides of the air outlet end.

4. The structure of the air nozzle with light transmission function according to claim 1, characterized in that, The light transmission hole is arranged in a fan shape.

5. The structure of the air nozzle with light transmission function according to claim 1, characterized in that, The rear side of the air nozzle body is further provided with a positioning protrusion.

6. The structure of the air nozzle with light transmission function according to claim 5, characterized in that, The positioning protrusion is in a circular shape.

7. The structure of the air nozzle with light transmission function according to claim 1, characterized in that, The air inlet is in a circular shape.

8. The structure of the air nozzle with light transmission function according to claim 1, characterized in that, The rear side of the air nozzle body is further provided with a magnetic attraction member.

9. The structure of the air nozzle with light transmission function according to claim 1, characterized in that, The rear side of the air nozzle body is further provided with a buckle protrusion.

10. A hair dryer characterized by The air nozzle structure with light transmission function comprises: an air nozzle body, a front side of the air nozzle body extends with an air outlet end, a rear side of the air nozzle body is provided with an air inlet, the air outlet end is communicated with the air inlet, and the air nozzle body is provided with a light transmission hole on at least one side of the air outlet end. The air outlet end is provided with a strip-shaped air outlet along the radial direction of the air nozzle body, and the strip-shaped air outlet is communicated with the air inlet. The air nozzle body is provided with a light transmission hole on both sides of the air outlet end. The light transmission hole is arranged in a fan shape. The rear side of the air nozzle body is further provided with a positioning protrusion. The positioning protrusion is in a circular shape. The air inlet is in a circular shape. The rear side of the air nozzle body is further provided with a magnetic attraction member. The rear side of the air nozzle body is further provided with a buckle protrusion.