Air nozzle accessory and blower

Abstract

The utility model provides a tuyere accessory and a blower, the tuyere accessory is provided with a mounting end and an air outlet end which are oppositely arranged, and an air outlet channel penetrating through the mounting end and the air outlet end, and the radial center of the air outlet channel is gradually far away from the central axis of the tuyere accessory in the direction from the mounting end to the air outlet end. The air outlet channel is arranged in an external expansion shape; and in the air outlet direction of the air outlet channel, the inner side wall of the air outlet channel protrudes outwards, so that the air outlet end face of the inner side wall exceeds the air outlet end face of the outer side wall of the air outlet channel in the air outlet direction. According to the tuyere accessory and the blower, the diffusion surface of airflow can be enlarged, and the air speed and the air temperature 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, which significantly shortens drying time. Hair dryers often come with nozzle attachments that can be connected to the air outlet to increase airflow speed and concentrate the airflow for styling purposes.

[0003] Traditional high-speed hair dryer nozzles often blow out high-speed and concentrated airflow. High-speed and concentrated airflow may also lead to excessive local wind speed and excessive temperature, causing certain 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 blower that can guide airflow and increase the airflow diffusion angle.

[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 extending through the installation end and the air outlet end. The radial center of the air outlet channel gradually moves away from the central axis of the nozzle accessory in the direction from the installation end to the air outlet end, so that the air outlet channel is arranged in an outwardly expanding shape. Furthermore, in the air outlet direction of the air outlet channel, the inner sidewall of the air outlet channel protrudes outward, so that the air outlet end face of the inner sidewall exceeds the air outlet end face of the outer sidewall of the air outlet channel in the air outlet direction.

[0007] As a further improvement of this utility model, the air outlet end face of the inner wall of the air outlet channel has a periodically changing curved shape.

[0008] As a further improvement of this utility model, the inner wall of the air outlet channel is inclined or curved, extending outward in the radial direction.

[0009] As a further improvement of this utility model, at least one of the inner and outer walls of the air outlet channel is provided with at least one protruding strip, the protruding strip being located inside the air outlet channel and extending along the air outlet direction of the air outlet channel.

[0010] As a further improvement of this utility model, the nozzle accessory has a housing and an air guide disposed in the housing. The protrusion is disposed on the inner wall surface of the housing, and the air guide is provided with at least one rib. The rib extends in the radial direction, and the protrusion and the rib are aligned in the radial direction.

[0011] 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.

[0012] As a further improvement of this utility model, the inner wall surface of the shell is provided with at least one support portion, the air guide is provided with a support column that cooperates with the support portion, and the support portion and the protrusion are staggered in the circumferential direction.

[0013] As a further improvement of this utility model, the nozzle accessory has a housing and an air guide disposed in the housing, the air outlet channel is formed at least between the housing and the air guide, and the air guide has a recessed portion formed from the air outlet end toward the mounting end.

[0014] As a further improvement of this utility model, the surface of the air guide on the side opposite to the recess is a smooth curved surface, and the opening size of the recess gradually increases in the radial direction in the air outlet direction of the air outlet channel.

[0015] 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.

[0016] The beneficial effects of this utility model are as follows: By setting the radial center of the air outlet channel of the air outlet accessory to gradually move away from the central axis of the air outlet accessory in the direction from the installation end to the air outlet end, the air outlet channel is made to expand outward, thereby allowing the airflow to diffuse outward. At the same time, in the air outlet direction, the inner sidewall of the air outlet channel protrudes outward, so that the air outlet end face of the inner sidewall exceeds the air outlet end face of the outer sidewall of the air outlet channel in the air outlet direction. This can guide the airflow, further increase the airflow diffusion angle, and thus increase the airflow diffusion surface, increase the airflow smoothness and stability, and at the same time reduce the airflow velocity, dispersing more heat in the airflow to a larger air outlet surface, reducing the temperature of the air outlet surface, and achieving the effect of protecting the user's hair and scalp. Attached Figure Description

[0017] Figure 1 This is a three-dimensional assembly diagram of the first embodiment of the nozzle accessory of this utility model.

[0018] Figure 2 for Figure 1 Another view of the nozzle attachment shown.

[0019] Figure 3 for Figure 1 An exploded 3D view of the nozzle accessory shown.

[0020] Figure 4 for Figure 3 Another view of the nozzle attachment shown.

[0021] Figures 5 to 6 for Figure 1 The sectional view of the nozzle accessory shown.

[0022] Figure 7 This is a cross-sectional schematic diagram of the second embodiment of the nozzle accessory of this utility model.

[0023] Figure 8 This is a three-dimensional assembly diagram of the third embodiment of the nozzle accessory of this utility model.

[0024] Figures 9 to 10 for Figure 8 The sectional view of the nozzle accessory shown.

[0025] In the picture:

[0026] 100. Nozzle accessory; 100A. Mounting end; 100B. Air outlet end; 101. Air outlet duct; 1010. Air outlet end face; 1011. Air outlet end face; 1012. Inner side wall; 1013. Outer side wall; 101a. First air outlet duct; 101b. Second air outlet duct; 101c. Main duct; 1014. First inner side wall; 1015. First outer side wall; 1016. Second inner side wall; 1017. Second outer side wall;

[0027] 2. Housing; 201. Protrusion; 202. Support; 21. Outer shell; 211. First snap-fit ​​part; 22. Inner shell; 221. Second snap-fit ​​part;

[0028] 3. Air guide component; 301. Rib; 302. Support column; 303. Recess; 31. First air guide section; 32. Second air guide section;

[0029] 4. Connectors. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] Figures 1 to 6 The image shown is a first embodiment of the nozzle accessory 100 of this utility model. Figure 7 The image shown is a second embodiment of the nozzle accessory 100 of this utility model. Figures 8 to 10 This is the third embodiment of the nozzle accessory 100 of this utility model. In each embodiment of the nozzle accessory 100 of 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, when describing the nozzle accessory 100 below, 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.

[0033] The radial center of the air outlet channel 101 gradually moves away from the central axis of the nozzle accessory 100 in the direction from the mounting end 100A to the air outlet end 100B, so that the air outlet channel 101 is arranged in an outwardly expanding shape; and in the air outlet direction of the air outlet channel 101, the inner sidewall 1012 of the air outlet channel 101 protrudes outward, so that the air outlet end face 1010 of the inner sidewall 1012 exceeds the air outlet end face 1011 of the outer sidewall 1013 of the air outlet channel 101 in the air outlet direction.

[0034] Specifically, the radial center of the air outlet channel 101 gradually moves away from the central axis of the nozzle accessory 100 in the direction from the mounting end 100A to the air outlet end 100B, so that the air outlet channel 101 is arranged in an outwardly expanding shape. That is, compared with the air inlet of the air outlet channel 101, the air outlet of the air outlet channel 101 is arranged away from the central axis of the nozzle accessory 100 in the radial direction, so that the airflow flowing outward from the air outlet channel 101 has a tendency to diffuse outward in the radial direction.

[0035] Furthermore, by configuring the inner wall 1012 of the air outlet channel 101 to protrude outwards, the air outlet end face 1010 of the inner wall 1012 extends beyond the air outlet end face 1011 of the outer wall 1013 of the air outlet channel 101 in the air outlet direction. When the airflow is blown out from the nozzle accessory 100, it first impacts the inner wall 1012. Because the inner wall 1012 protrudes outwards beyond the outer wall 1013, the airflow is forced to change direction under the obstruction of the inner wall 1012 and diffuses in all directions. Thus, the inner wall 1012 guides the airflow, increases the airflow diffusion angle, thereby increasing the airflow diffusion surface and reducing the airflow velocity and the temperature of the air outlet surface.

[0036] Specifically, the inner wall 1012 is designed to protrude outwards, so that the air outlet face 1010 of the inner wall 1012 extends beyond the air outlet face 1011 of the outer wall 1013 of the air outlet channel 101 in the air outlet direction. This effectively guides the airflow to diffuse evenly, significantly increasing the airflow diffusion angle compared to traditional air outlets, enlarging the airflow diffusion surface, ensuring uniform distribution of airflow across the entire airflow surface, improving the smoothness and stability of the airflow, and providing a more comfortable user experience. Furthermore, by increasing the airflow diffusion surface, the airflow velocity is significantly reduced. While the velocity decreases, the airflow pressure increases, making the airflow more stable. Simultaneously, because heat is dispersed over a larger airflow surface, the airflow surface temperature decreases, effectively protecting the user's hair and scalp, reducing damage caused by high-temperature airflow. Moreover, by forming a uniformly dispersed and stable airflow, it can act more effectively on the target object. For example, in hairdressing scenarios, it can dry hair more evenly, reducing energy waste and improving energy efficiency.

[0037] like Figure 1 and Figure 5 As shown, in the first embodiment of this utility model, the air outlet end face 1010 of the inner sidewall 1012 of the air outlet channel 101 has a periodically changing curved shape. Specifically, the air outlet end face 1010 is... Figure 5 The top surface of the inner sidewall 1012 shown, and the air outlet surface of the inner sidewall 1012 have a continuous alternating protrusion and depression structure.

[0038] In this invention, by setting the air outlet face 1010 of the inner sidewall 1012 into a periodically changing curved shape, the contact area between the inner sidewall 1012 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.

[0039] In some embodiments of this utility model, at least one of the inner and outer walls 1012 and 1013 of the air outlet channel 101 is provided with at least one protruding strip 201. The protruding strip 201 is located inside the air outlet channel 101 and extends along the air outlet direction of the air outlet channel 101. In this way, by providing the protruding strip 201 inside the air outlet channel 101, a guiding function is achieved, preventing sharp corners and sharp edges from causing large pressure loss and turbulence.

[0040] like Figure 5 As shown in the embodiment of this utility model, the protrusion 201 is disposed on the outer side wall 1013 and is curved in the shape of a central portion protruding inward. In other embodiments, the protrusion 201 may also protrude from the inner side wall 1013. Preferably, in the air outlet direction of the air outlet channel 101, the distance from the part of the protrusion 201 that protrudes the most inward to the air outlet end 100B is less than its distance to the mounting end 100A. This allows for greater guidance and segmentation of the airflow near the air outlet end 100B, thereby preventing the formation of large vortices in the large airflow.

[0041] Specifically, in this embodiment, the nozzle accessory 100 has a housing 2 and an air guide 3 disposed within the housing 2, with the protrusion 201 disposed on the inner wall surface of the housing 2. The air guide 3 has at least one rib 301 extending radially, and the protrusion 201 is aligned with the rib 301 in the radial direction. Thus, this invention uses the rib 301 and the protrusion 201 aligned with the rib 301 to divide the airflow and prevent the formation of large vortices in a large airflow.

[0042] Furthermore, the air outlet duct 101 is provided with a plurality of protruding strips 201, which are spaced apart in the circumferential direction. In this way, by arranging the protruding strips 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.

[0043] In addition, the inner wall surface of the housing 2 is provided with at least one support portion 202, and the air guide 3 is provided with a support column 302 that cooperates with the support portion 202. The support portion 202 and the protrusion 201 are staggered in the circumferential direction. 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.

[0044] In this invention, the air outlet channel 101 is formed at least between the housing 2 and the air guide 3. The air guide 3 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 superior aerodynamic properties can be selected to reduce the weight of the air guide 3 and improve the overall system efficiency. Simultaneously, 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 a material with noise reduction capabilities to reduce system noise. Furthermore, the air guide 3 is recessed downwards from its top to retain a certain low-pressure zone at its top. This low-pressure zone design allows the airflow to quickly reconverge after diffusion, forming an airflow distribution with a higher central velocity and a decreasing outer velocity, thus improving airflow guidance efficiency.

[0045] In some embodiments of this utility model, the surface of the air guide 3 opposite to the recess 303 is a smooth curved surface, and the opening size of the recess 303 gradually increases in the radial direction along the air outlet direction of the air outlet channel 101. Thus, by setting the surface of the air guide 3 within the air outlet channel 101 to a smooth curved surface, this application reduces resistance within the air outlet channel 101, reduces energy loss, evenly directs airflow outward, avoids vortex generation, and improves airflow stability.

[0046] Furthermore, the surface of the air guide 3 opposite to the recess 303 is its outer surface, and the surface defining the recess 303 is its inner surface. In some embodiments of this utility model, the minimum curvature of the outer surface is 0.015 and the maximum curvature is 0.094.

[0047] Specifically, the air guide 3 has a first air guide portion 31, which is U-shaped and open upward to form the recessed portion 303.

[0048] In this embodiment, the housing 2 includes an outer shell 21 and an inner shell 22 connected to each other. The 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 ​​part 211, and the outer side of the inner shell 22 is provided with at least one second snap-fit ​​part 221. The second snap-fit ​​part 221 cooperates with the corresponding first snap-fit ​​part 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.

[0049] like Figure 6 As shown, in the first embodiment of this utility model, the air outlet channel 101 includes not only a first air outlet channel 101a formed between the housing 2 and the air guide 3, but also a second air outlet channel 101b formed on the air guide 2 and a main channel 101c that communicates with the first air outlet channel 101a and the second air outlet channel 101b.

[0050] At this time, in the air outlet direction, the first inner wall 1014 of the first air outlet channel 101a protrudes outward beyond the first outer wall 1015 of the first air outlet channel 101a, and the second inner wall 1016 of the second air outlet channel 101b protrudes outward beyond the second outer wall 1017 of the second air outlet channel 101b.

[0051] At this time, the air guide 3 also has a second air guide 32 located outside the first air guide 31. A plurality of the ribs 301 extend radially to connect the first air guide 31 and the second air guide 32.

[0052] Meanwhile, the first inner wall 1014 and the second outer wall 1017 are connected at the air inlets of the first and second air outlet channels 101a and 101b. The connection of the first inner wall 1014 and the second outer wall 1017 forms the second air guide 32. The slope of the first inner wall 1014 is smaller than the slope of the second outer wall 1017. Thus, the first and second air outlet channels 101a and 101b can be formed by setting the second air guide 32, which has a simple structure and is easy to manufacture and assemble.

[0053] like Figure 7As shown, in the second embodiment of the nozzle accessory 100 of this utility model, the air outlet channel 101 is formed only between the housing 2 and the air guide 3. In this case, the inner sidewall 1012 is formed in the air guide 3, and the outer sidewall 1013 is formed in the housing 2. That is, the air outlet channel 101 only has the first air outlet channel 101a mentioned in the first embodiment and does not have the second air outlet channel 101b mentioned in the first embodiment.

[0054] like Figure 8 As shown, in the third 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 accessory 100. The nozzle accessory 100 is detachably connected to the air outlet end of the hair dryer body via the mounting end 100A. Thus, by connecting the nozzle accessory 100 to the air outlet end of the hair dryer body, when the high-speed airflow from the hair dryer body passes through the nozzle accessory 100, the airflow velocity and surface temperature are reduced, thereby protecting the health of the hair and scalp.

[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 4 As 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 blower body and has an identification part that can communicate with the control circuit of the blower.

[0059] In summary, the nozzle accessory 100 and hair dryer of this utility model, by setting the radial center of the air outlet channel 101 of the nozzle accessory 100 to gradually move away from the central axis of the nozzle accessory 100 in the direction from the mounting end 100A to the air outlet end 100B, make the air outlet channel 101 outwardly oriented, thereby allowing the airflow to diffuse outward. At the same time, in the air outlet direction of the air outlet channel 101, the inner sidewall 1012 of the air outlet channel 101 protrudes outward, so that the air outlet end face 1010 of the inner sidewall 1012 exceeds the air outlet end face 1011 of the outer sidewall 1013 of the air outlet channel 101 in the air outlet direction. This can guide the airflow, further increase the airflow diffusion angle, thereby increasing the airflow diffusion surface, increasing the airflow smoothness and stability, while reducing the airflow velocity, dispersing more heat in the airflow to a larger air outlet surface, reducing the temperature of the air outlet surface, and achieving the effect of protecting the user's hair and scalp.

[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 radial center of the air outlet channel gradually moves away from the central axis of the nozzle accessory in the direction from the mounting end to the air outlet end, so that the air outlet channel is arranged in an outward expansion shape; and in the air outlet direction of the air outlet channel, the inner sidewall of the air outlet channel protrudes outward, so that the air outlet end face of the inner sidewall exceeds the air outlet end face of the outer sidewall of the air outlet channel in the air outlet direction.

2. The nozzle accessory according to claim 1, characterized in that, The air outlet end face of the inner wall of the air outlet channel has a periodically changing curved shape.

3. The nozzle accessory according to claim 1, characterized in that, The inner wall of the air outlet duct is inclined or curved, extending outward in the radial direction.

4. The nozzle accessory according to claim 2 or 3, characterized in that, At least one of the inner and outer walls of the air outlet channel is provided with at least one protruding strip, the protruding strip being located inside the air outlet channel and extending along the air outlet direction of the air outlet channel.

5. The nozzle accessory according to claim 4, characterized in that, The nozzle accessory has a housing and an air guide disposed within the housing. The protrusion is disposed on the inner wall surface of the housing. The air guide is provided with at least one rib, which extends in the radial direction. The protrusion and the rib are aligned in the radial direction.

6. The nozzle accessory according to claim 4, characterized in that, The air outlet channel is provided with a plurality of the aforementioned protrusions, which are spaced apart along the circumferential direction.

7. The nozzle accessory according to claim 5, characterized in that, The inner wall of the housing is also provided with at least one support portion, and the air guide is provided with a support column that cooperates with the support portion. The support portion and the convex strip are staggered in the circumferential direction.

8. The nozzle accessory according to claim 2 or 3, characterized in that, The nozzle accessory has a housing and an air guide disposed within the housing. The air outlet channel is formed at least between the housing and the air guide. The air guide has a recessed portion formed from the air outlet end toward the mounting end.

9. The nozzle accessory according to claim 8, characterized in that, The surface of the air guide on the side opposite to the recess is a smooth curved surface, and the opening size of the recess gradually increases in the radial direction in the air outlet direction of the air outlet channel.

10. 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 9, wherein the nozzle accessory is detachably connected to the air outlet end of the hair dryer body via the mounting end.

Images