Air nozzle accessory and blower

Abstract

The utility model provides an air nozzle accessory and a blower, the air nozzle accessory is provided with an installation end and an air outlet end which are oppositely arranged, and an air outlet channel penetrating through the installation end and the air outlet end, the air outlet channel is provided with a main channel, a first air outlet channel and a second air outlet channel, and the first air outlet channel and the second air outlet channel are communicated with the main channel. The first air outlet channel and the second air outlet channel are both annularly arranged, and the first air outlet channel and the second air outlet channel are arranged in the radial direction of the tuyere accessory in a spaced mode. According to the tuyere accessory and the blower, airflow can be evenly diffused, and noise can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of electrical appliances, and in particular to a nozzle accessory and a hair dryer. Background Technology

[0002] As people's demand for hair drying increases, high-speed hair dryers are becoming increasingly popular due to their higher power and airflow speed, which significantly shortens drying time through strong airflow. Hair dryers often have nozzle attachments that can be connected to the air outlet to increase airflow speed and concentrate airflow, thereby achieving styling goals.

[0003] However, traditional high-speed hair dryer nozzles often blow out high-speed and concentrated airflow. This high-speed airflow interacts violently with the surrounding air at the outlet, creating strong turbulence and pressure fluctuations, resulting in high aerodynamic noise. In addition, the high-speed and concentrated airflow may also lead to excessively high local wind speeds and temperatures, causing damage to the user's hair and scalp, and affecting the user experience.

[0004] Therefore, it is necessary to improve existing nozzle accessories and hair dryers to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a nozzle accessory and a hair dryer that can evenly diffuse airflow and reduce noise.

[0006] To achieve the above-mentioned utility model objectives, this utility model provides a nozzle accessory having an installation end and an air outlet end arranged opposite to each other, and an air outlet channel that passes through the installation end and the air outlet end. The air outlet channel has a main channel and a first and a second air outlet channel connected to the main channel. The first and second air outlet channels are both arranged in a ring shape, and the first and second air outlet channels are spaced apart in the radial direction of the nozzle accessory.

[0007] As a further improvement of this utility model, both the first and second air outlet channels have air inlets and air outlets arranged opposite to each other. In the radial direction, the radial dimension of the air outlet of at least one of the first and second air outlet channels is smaller than the radial dimension of its air inlet.

[0008] As a further improvement of this utility model, the first air outlet channel has a first inner sidewall and a first outer sidewall arranged opposite to each other; the second air outlet channel has a second inner sidewall and a second outer sidewall arranged opposite to each other, and the first and second inner sidewalls gradually increase in size along the radial direction.

[0009] As a further improvement of this utility model, in the radial direction, the second air outlet channel is located inside the first air outlet channel, and at the same depth position of the air outlet channel, the radial opening size of the second air outlet channel is larger than the radial opening size of the first air outlet channel.

[0010] As a further improvement of this utility model, the first inner sidewall and the second outer sidewall are connected at the air inlet of the first and second air outlet channels, and the angle formed by the first inner sidewall and the reference plane is smaller than the angle formed by the second outer sidewall and the reference plane.

[0011] As a further improvement of this utility model, in the air outlet direction of the air outlet channel, the first inner sidewall protrudes outward beyond the first outer sidewall, and the second inner sidewall protrudes outward beyond the second outer sidewall.

[0012] As a further improvement of this utility model, the air outlet end faces of the first and second inner sidewalls are in the shape of a periodically changing curve.

[0013] As a further improvement of this utility model, the nozzle accessory has a housing and an air guide disposed in the housing, the first outer side wall is formed in the housing, and the first inner side wall, the second inner side wall and the second outer side wall are formed in the air guide.

[0014] As a further improvement of this utility model, the air guide has a first air guide portion located in the air outlet channel, and a second inner sidewall is formed in the first air guide portion. The first air guide portion has a recessed portion formed from the air outlet end toward the mounting end. The first air guide portion defines the surface forming the air outlet channel as a smooth curved surface. In the air outlet direction of the air outlet channel, the opening size of the recessed portion in the radial direction gradually increases.

[0015] As a further improvement of this utility model, at least one protrusion is formed on the inner wall surface of the housing, the protrusion is located in the air outlet channel, and the protrusion extends along the air outlet direction of the air outlet channel.

[0016] As a further improvement of this utility model, at least one rib is provided in the second air outlet channel. The rib extends in the radial direction and connects the second inner sidewall and the second outer sidewall. The protruding strip is aligned with the rib in the radial direction.

[0017] As a further improvement of this utility model, the air outlet channel is provided with a plurality of the aforementioned protrusions, which are spaced apart along the circumferential direction.

[0018] As a further improvement of this utility model, the inner wall surface of the housing also has at least one support portion, which cooperates with the air guide, and the support portion and the protrusion are staggered in the circumferential direction.

[0019] To achieve the above-mentioned utility model objectives, this utility model also provides a hair dryer, which includes a hair dryer body and the aforementioned nozzle accessory, wherein the nozzle accessory is detachably connected to the air outlet end of the hair dryer body via the mounting end.

[0020] The beneficial effects of this utility model are as follows: This utility model's nozzle accessory and hair dryer, by setting up first and second air outlet channels connected to the main airflow channel, and through the annular arrangement of the first and second air outlet channels and their radially spaced layout, allows the interaction of two airflow streams at the air outlet, enabling the airflow to be evenly distributed in all directions. This structure ensures a more stable and even airflow delivery to the hair and scalp surface, thereby increasing the coverage area of ​​the blower, avoiding the concentrated airflow problem that may occur with traditional hair dryers, and providing a more comprehensive airflow distribution. Attached Figure Description

[0021] Figure 1 This is a three-dimensional assembly diagram of the first embodiment of the nozzle accessory of this utility model.

[0022] Figure 2 for Figure 1 Another view of the nozzle attachment shown.

[0023] Figure 3 for Figure 1 An exploded 3D view of the nozzle accessory shown.

[0024] Figure 4 for Figure 3 Another view of the nozzle attachment shown.

[0025] Figures 5 to 6 for Figure 1 The sectional view of the nozzle accessory shown.

[0026] Figure 7 This is a three-dimensional assembly diagram of the second embodiment of the nozzle accessory of this utility model.

[0027] Figures 8 to 9 for Figure 7 The sectional view of the nozzle accessory shown.

[0028] In the picture:

[0029] 100. Nozzle accessory; 100A. Mounting end; 100B. Air outlet end; 101. Air outlet duct; 101a. First air outlet duct; 101b. Second air outlet duct; 101c. Main duct; 1010. Air outlet end face; 1012. First inner side wall; 1013. First outer side wall; 1014. Second inner side wall; 1015. Second outer side wall;

[0030] 2. Housing; 201. Protrusion; 202. Support; 21. Outer shell; 211. First snap-fit ​​part; 22. Inner shell; 221. Second snap-fit ​​part;

[0031] 3. Air guide component; 301. Rib; 302. Support column; 303. Recess; 31. First air guide section; 32. Second air guide section;

[0032] 4. Connectors. Detailed Implementation

[0033] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any modifications to the mechanism, method, or function made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0034] The terms used herein, such as "up," "down," "left," "right," "front," and "back," indicating spatial relative position, are for illustrative purposes to describe the relationship of one feature relative to another, as shown in the accompanying drawings. It is understood that, depending on the product's placement, these terms may be intended to include different orientations besides those shown in the figures, and should not be construed as limiting the claims. Furthermore, the descriptive term "horizontal" used herein is not entirely equivalent to being perpendicular to the direction of gravity, and allows for a certain angle of inclination.

[0035] Figures 1 to 6 The image shown is a first embodiment of the nozzle accessory 100 of this utility model. Figures 7 to 9 The image shows a second embodiment of the nozzle accessory 100 of this utility model. In this utility model, the nozzle accessory 100 has an installation end 100A and an air outlet end 100B arranged opposite to each other, and an air outlet channel 101 that passes through the installation end 100A and the air outlet end 100B. For ease of explanation, the installation end 100A of the nozzle accessory 100 will be regarded as the lower end and the air outlet end 100B as the upper end in the following description.

[0036] The air outlet channel 101 has a main channel 101c and first and second air outlet channels 101a and 101b connected to the main channel 101c. Both the first and second air outlet channels 101a and 101b are arranged in a ring shape and are spaced apart in the radial direction of the nozzle accessory 100. Thus, through the ring-shaped arrangement of the first and second air outlet channels 101a and 101b and their radially spaced arrangement, the interaction of the two airflow streams at the air outlet allows the airflow to be evenly distributed in all directions. This structure ensures a more stable and even airflow distribution on the hair and scalp, thereby increasing the coverage area of ​​the blower, avoiding the concentrated airflow problem that may occur with traditional hair dryers, and providing a more comprehensive airflow distribution.

[0037] The first and second air outlet channels 101a and 101b each have opposing air inlets and outlets. In the radial direction, the radial dimension of the outlet of at least one of the first and second air outlet channels 101a and 101b is smaller than the radial dimension of its air inlet. Thus, by arranging at least one of the first and second channels 101a and 101b in an inverted funnel shape, the radial dimension of the airflow gradually decreases, thereby achieving airflow contraction and convergence. The airflow is gently guided to the target area to avoid damage to the hair and scalp due to excessive local wind force or temperature. The gentle output after airflow contraction not only effectively removes moisture from the surface of the hair and scalp but also avoids overheating problems caused by concentrated wind force and high temperature, protecting the natural health and shine of the hair.

[0038] Preferably, the radial dimension of the air outlet of the first air outlet channel 101a is smaller than the radial dimension of its air inlet, and the radial dimension of the air outlet of the second air outlet channel 101b is also smaller than the radial dimension of its air inlet, so that the first and second air outlet channels 101a and 101b can both cause the airflow to contract and converge, thereby blowing out a gentle airflow.

[0039] Specifically, the first air outlet channel 101a has a first inner sidewall 1012 and a first outer sidewall 1013 disposed opposite to each other; the second air outlet channel 101b has a second inner sidewall 1014 and a second outer sidewall 1015 disposed opposite to each other, and the first and second inner sidewalls 1012 and 1014 gradually increase in size in the radial direction. Further, the first and second inner sidewalls 1012 and 1014 are outwardly flared. Thus, the first and second air outlet channels 101a and 101b can achieve airflow diffusion by setting the first and second inner sidewalls 1012 and 1014 to gradually increase in size in the radial direction.

[0040] In the radial direction, the second air outlet channel 101b is located inside the first air outlet channel 101a, and at the same depth position of the air outlet channel 101, the radial opening size of the second air outlet channel 101b is larger than the radial opening size of the first air outlet channel 101a. Thus, by setting the radial opening size of the second air outlet channel 101b to be larger than that of the first air outlet channel 101a, a balance can be maintained between drying efficiency and airflow diffusion, preventing a situation where there is no airflow in the middle due to excessive airflow diffusion. Furthermore, by reducing the radial opening of the first air outlet channel 101a and increasing the radial opening of the second air outlet channel 101b at the air outlet, not only can the airflow distribution be optimized, but the overall area of ​​the air outlet can also be effectively reduced. This design effectively reduces turbulence and noise generation when airflow passes through the air outlet, lowering the operating noise of the hair dryer and thus improving the user experience.

[0041] The first inner wall 1012 and the second outer wall 1015 are connected at the air inlets of the first and second air outlet channels 101a and 101b. The angle formed by the first inner wall 1012 and the reference plane is smaller than the angle formed by the second outer wall 1015 and the reference plane. Thus, the first and second air outlet channels 101a and 101b are formed by connecting the first inner wall 1012 and the second outer wall 1015. The structure is simple and easy to manufacture and assemble.

[0042] In the air outlet direction of the air outlet duct 101, the first inner sidewall 1012 protrudes outward beyond the first outer sidewall 1013, and the second inner sidewall 1014 protrudes outward beyond the second outer sidewall 1015. When the airflow is blown out from the nozzle accessory 100, it first impacts the first and second inner sidewalls 1012 and 1014. Because the first and second inner sidewalls 1012 and 1014 protrude outward beyond the first and second outer sidewalls 1013 and 1015 respectively, the airflow is forced to change direction and diffuse in all directions under the obstruction of the first and second inner sidewalls 1012 and 1014. Thus, the first and second inner sidewalls 1012 and 1014 guide the airflow, increase the airflow diffusion angle, thereby increasing the airflow diffusion surface and reducing the airflow velocity and the temperature of the outlet surface.

[0043] The air outlet end face 1010 of the first and second inner sidewalls 1012 and 1014 has a periodically changing curved shape. Specifically, the air outlet end face 1010 is... Figure 3 and Figure 5 The top surfaces of the first and second inner sidewalls 1012 and 1014 are shown, and the air outlet surfaces of the first and second inner sidewalls 1012 and 1014 are in a periodically changing curved shape, for example, they can present a wave-like shape with high and low undulations.

[0044] In this invention, by setting the air outlet end face 1010 of the first and second inner sidewalls 1012 and 1014 to a periodically changing curved shape, the contact area between the first and second inner sidewalls 1012 and 1014 and the airflow is maximized. This not only ensures that the area of ​​the air outlet is not too small, avoiding the problem of excessive airflow velocity due to a small air outlet area, but also increases the airflow diffusion angle, thereby increasing the airflow diffusion surface and ensuring that the airflow blown out of the air outlet is uniformly dispersed, thus improving the smoothness and stability of the airflow. At the same time, due to the large diffusion surface during the outward blowing of the airflow, not only is the airflow velocity reduced, but more heat in the airflow is also dispersed to a larger air outlet surface, reducing the temperature of the air surface and thus achieving the effect of protecting the user's hair and scalp.

[0045] Specifically, in some embodiments of this utility model, the nozzle accessory 100 has a housing 2 and an air guide 3 disposed within the housing 2. The first outer side wall 1013 is formed in the housing 2, and the first inner side wall 1012, the second inner side wall 1014, and the second outer side wall 1015 are formed in the air guide 3. Thus, the first and second air outlet channels 101a and 101b can be formed by combining the housing 2 and the air guide 3. The structure is simple and easy to manufacture and assemble.

[0046] The air guide 3 has a first air guide portion 31 located in the air outlet channel, and a second inner sidewall 1014 formed in the first air guide portion 31. The first air guide portion 31 has a recessed portion 303 formed from the air outlet end 100B toward the mounting end 100A. In the design of the air guide 3, a high-strength lightweight material with better aerodynamic properties can be selected to reduce the weight of the air guide 3 and improve the overall system efficiency. At the same time, the surface of the air guide can be treated with a smooth or low-resistance coating to further reduce airflow resistance and improve airflow stability. Alternatively, the material of the air guide 3 can be selected to have noise reduction function to reduce system noise. Furthermore, the air guide 3 retains a certain low-pressure zone at its top by being recessed downwards from its top. The design of the low-pressure zone allows the airflow to quickly re-converge after diffusion, forming an airflow distribution with a higher central velocity and a decreasing outer velocity, thereby improving airflow guiding efficiency.

[0047] The first air guide portion 31 defines the surface forming the air outlet channel 101 as a smooth curved surface. In the air outlet direction of the air outlet channel 101, the opening size of the recessed portion 303 gradually increases in the radial direction. Thus, by setting the surface of the air guide 3 within the air outlet channel 101 as a smooth curved surface, this application reduces resistance within the air outlet channel 101, reduces energy loss, uniformly directs airflow outward, avoids vortex generation, and improves airflow stability.

[0048] Furthermore, the surface of the first air guide 31 that forms the air outlet channel 101 is defined as the surface of the first air guide 31 on the side opposite to the recess 303, that is, the outer surface of the first air guide 31, and the surface that forms the recess 303 is defined as the inner surface of the first air guide 31. In some embodiments of the present invention, the minimum curvature of the outer surface is 0.015 and the maximum curvature is 0.094.

[0049] At least one protruding strip 201 is formed on the inner wall surface of the housing 2. The protruding strip 201 is located in the air outlet channel and extends along the air outlet direction of the air outlet channel. In this way, by setting the protruding strip 201 in the air outlet channel 101, a guiding function is achieved, preventing sharp corners and sharp edges from causing large pressure loss and turbulence.

[0050] The second air outlet channel 101b is provided with at least one rib 301, which extends radially and connects the second inner sidewall 1014 and the second outer sidewall 1015. The protruding strip 201 is aligned with the rib 301 in the radial direction. Thus, this invention uses the rib 301 and the protruding strip 201 aligned with the rib 301 to divide the airflow and prevent the formation of large vortices in a large airflow.

[0051] Furthermore, the air outlet duct 101 is provided with a plurality of protrusions 201, which are spaced apart in the circumferential direction. In this way, by arranging the protrusions 201 at intervals in the circumferential direction in the air outlet duct 101, the wind resistance in the air outlet duct 101 and the turbulence and noise formed by multiple collisions between the airflow and the housing 2 are reduced.

[0052] The inner wall surface of the housing 2 also has at least one support portion 202, which cooperates with the air guide 3. The support portion 202 and the protrusion 201 are staggered in the circumferential direction. The air guide 3 is provided with a support column 302 that cooperates with the support portion 202. In this way, by staggering the support portion 202 and the protrusion 201 on the inner wall surface of the housing 2, interference between the protrusion 201 and the support column 302 provided on the air guide 3 is avoided.

[0053] In this embodiment, the housing 2 includes an outer shell 21 and an inner shell 22 connected to each other. The first outer side wall 1013 and the protrusion 201 are both formed on the inner shell 22. The outer shell 21 and the inner shell 22 are connected together by a snap-fit ​​structure. Specifically, the inner side of the outer shell 21 is provided with at least one first snap-fit ​​portion 211, and the outer side of the inner shell 22 is provided with at least one second snap-fit ​​portion 221. The second snap-fit ​​portion 221 cooperates with the corresponding first snap-fit ​​portion 211 to realize the connection between the outer shell 21 and the inner shell 22, so that the outer shell 21 at least partially surrounds the inner shell 22 to present a shape that meets the user's needs.

[0054] like Figures 7 to 9 As shown, in the second embodiment of the nozzle attachment 100 of this utility model, the basic structure of the nozzle attachment 100 is the same as that of the first embodiment, and will not be repeated here. The following only describes the differences: In this embodiment, the air outlet end face of the air outlet channel 101 is planar, and the inner sidewall 1012 of the air outlet channel 101 is inclined or curved and extends outward in the radial direction.

[0055] Thus, by making the inner sidewall 1012 inclined or curved in a radially outward direction, the area for airflow to diffuse in all directions is increased, thereby achieving a gentle blowing effect. In some embodiments, the inner sidewall 1012 can be formed directly by an inclined arrangement; in other embodiments, the inner sidewall 1012 can also be curved outward with a certain curvature.

[0056] In addition, this utility model also provides a hair dryer, which includes a hair dryer body (not shown) and the aforementioned nozzle attachment 100. The nozzle attachment 100 is detachably connected to the air outlet end of the hair dryer body via the mounting end 100A. Thus, by installing the nozzle attachment 100 at the air outlet end of the hair dryer body, when the high-speed airflow from the hair dryer body passes through the nozzle attachment 100, the two airflows blown out from the first and second air outlet channels 101a and 101b interact at the air outlet, making the airflow more evenly distributed in all directions. This structure ensures that the airflow is more stable and evenly delivered to the hair and scalp surface, thereby increasing the coverage of the blower and avoiding the concentrated airflow problem that may occur with traditional hair dryers, providing a more comprehensive airflow distribution.

[0057] In some embodiments of this utility model, the nozzle accessory 100 can be installed on the air outlet end of the hair dryer body by means of threaded connection, snap-on connection or magnetic connection.

[0058] In addition, such as Figures 1 to 4As shown in the present invention, the nozzle accessory 100 further includes a connector 4 connected to the housing 2. The connector 4 is connected to the body of the hair dryer and has an identification part that can communicate with the control circuit of the hair dryer.

[0059] In summary, the nozzle accessory 100 and hair dryer of this utility model, by setting first and second air outlet channels 101a and 101b connected to the main airflow channel 101c, and through the annular arrangement of the first and second air outlet channels 101a and 101b and their radially spaced arrangement, allow the interaction of two airflows at the air outlet, enabling the airflow to be evenly distributed in all directions. This structure ensures that the airflow is more stable and evenly delivered to the hair and scalp surface, thereby increasing the coverage of the blower, avoiding the concentrated airflow problem that may occur in traditional hair dryers, and providing a more comprehensive airflow distribution.

[0060] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0061] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A nozzle accessory, comprising an opposing mounting end and an air outlet end, and an air outlet channel penetrating the mounting end and the air outlet end, characterized in that, The air outlet channel has a main channel and a first and a second air outlet channel connected to the main channel. The first and second air outlet channels are both arranged in a ring shape, and the first and second air outlet channels are spaced apart in the radial direction of the air nozzle accessory.

2. The nozzle accessory according to claim 1, characterized in that, Both the first and second air outlet channels have air inlets and air outlets arranged opposite to each other. In the radial direction, the radial dimension of the air outlet of at least one of the first and second air outlet channels is smaller than the radial dimension of its air inlet.

3. The nozzle accessory according to claim 1 or 2, characterized in that, The first air outlet duct has a first inner sidewall and a first outer sidewall that are arranged opposite to each other; the second air outlet duct has a second inner sidewall and a second outer sidewall that are arranged opposite to each other, and the first and second inner sidewalls gradually increase in size along the radial direction.

4. The nozzle accessory according to claim 3, characterized in that, In the radial direction, the second air outlet channel is located inside the first air outlet channel, and at the same depth position of the air outlet channel, the radial opening size of the second air outlet channel is larger than the radial opening size of the first air outlet channel.

5. The nozzle accessory according to claim 4, characterized in that, The first inner wall and the second outer wall are connected at the air inlets of the first and second air outlet channels. The angle formed by the first inner wall and the reference plane is smaller than the angle formed by the second outer wall and the reference plane.

6. The nozzle accessory according to claim 3, characterized in that, In the air outlet direction of the air outlet channel, the first inner sidewall protrudes outward beyond the first outer sidewall, and the second inner sidewall protrudes outward beyond the second outer sidewall.

7. The nozzle accessory according to claim 3, characterized in that, The air outlet surfaces of the first and second inner sidewalls have a periodically changing curved shape.

8. The nozzle accessory according to claim 3, characterized in that, The nozzle accessory has a housing and an air guide disposed within the housing. The first outer side wall is formed in the housing, and the first inner side wall, the second inner side wall, and the second outer side wall are formed in the air guide.

9. The nozzle accessory according to claim 8, characterized in that, The air guide has a first air guide portion located in the air outlet channel, and a second inner sidewall is formed in the first air guide portion. The first air guide portion has a recessed portion formed from the air outlet end toward the mounting end. The first air guide portion defines the surface forming the air outlet channel as a smooth curved surface. In the air outlet direction of the air outlet channel, the opening size of the recessed portion in the radial direction gradually increases.

10. The nozzle accessory according to claim 8, characterized in that, At least one protrusion is formed on the inner wall surface of the housing, the protrusion is located in the air outlet channel, and the protrusion extends along the air outlet direction of the air outlet channel.

11. The nozzle accessory according to claim 10, characterized in that, The second air outlet channel is provided with at least one rib, which extends in the radial direction and connects the second inner sidewall and the second outer sidewall. The protruding strip is aligned with the rib in the radial direction.

12. The nozzle accessory according to claim 11, characterized in that, The air outlet channel is provided with a plurality of the aforementioned protrusions, which are spaced apart along the circumferential direction.

13. The nozzle accessory according to claim 10, characterized in that, The inner wall of the housing also has at least one support portion, which cooperates with the air guide, and the support portion and the protrusion are staggered in the circumferential direction.

14. A hair dryer, characterized in that, The device includes a hair dryer body and a nozzle accessory according to any one of claims 1 to 13, wherein the nozzle accessory is detachably connected to the air outlet end of the hair dryer body via the mounting end.

Images