Air inlet structure of hair dryer and hair dryer

Abstract

The application relates to an air inlet mechanism of a hair dryer and the hair dryer. The air inlet mechanism of the hair dryer comprises a first air inlet net, a second air inlet net, a third air inlet net and an elastic air permeable piece. The third air inlet net is arranged between the first air inlet net and the second air inlet net, the mesh size of the third air inlet net is smaller than that of the first air inlet net and the second air inlet net, and the elastic air permeable piece is attached to one side of the third air inlet net close to the first air inlet net. The air inlet mechanism and the hair dryer can better straighten, effectively reduce the working noise of the hair dryer and improve the user experience.

Description

Technical Field

[0001] This application relates to the field of hair dryer technology, and in particular to an air inlet mechanism and hair dryer. Background Technology

[0002] A hair dryer is a hair styling tool that uses an electric motor to create airflow, thereby drying and shaping hair. A typical hair dryer consists of a barrel, a motor inside the barrel, and an air intake mechanism located at the air inlet end of the barrel. When the motor is working, outside air is drawn into the barrel through the air intake mechanism and finally blown out from the outlet end, forming an airflow with a certain speed.

[0003] However, in existing hair dryers, the airflow is often turbulent when outside air enters the blower through the air intake mechanism, resulting in significant noise during operation and affecting the user experience. Utility Model Content

[0004] Therefore, it is necessary to provide an air intake mechanism and a hair dryer to address the above problems. This air intake mechanism and hair dryer can effectively rectify airflow, reduce the operating noise of the hair dryer, and improve the user experience.

[0005] On one hand, an air intake mechanism for a hair dryer is provided, including a first air intake mesh, a second air intake mesh, a third air intake mesh, and an elastic breathable component, wherein the third air intake mesh is disposed between the first air intake mesh and the second air intake mesh, and the mesh size of the third air intake mesh is smaller than the mesh sizes of the first air intake mesh and the second air intake mesh, and the elastic breathable component is attached to the side of the third air intake mesh close to the first air intake mesh.

[0006] In this type of air intake mechanism, the third air intake mesh is placed between the first air intake mesh and the second air intake mesh, and the elastic breathable element is placed between the third air intake mesh and the first air intake mesh. When air is intake, the airflow passes through the first air intake mesh, the elastic breathable element, the third air intake mesh and the second air intake mesh in sequence. The first air inlet screen prevents larger debris (such as lint and hair) from entering the air intake mechanism, thus avoiding blockage. It also provides initial airflow rectification, reducing initial noise from large-scale airflow impacts. The elastic vent allows for airflow buffering, reducing impact speed and absorbing some of the mid-to-high frequency noise generated by airflow impact. Furthermore, the porous structure of the elastic vent further filters out fine dust and particles not blocked by the first air inlet screen, preventing them from entering the air duct and causing additional noise through friction with components, and preventing blockage that could affect subsequent airflow rectification. When the airflow passes through the third air inlet screen, its finer mesh disperses small turbulent eddies, making the airflow more uniform in speed and direction before entering the air duct through the second air inlet screen, further reducing the operating noise of the hair dryer. Furthermore, because the elastic vent is attached to the side of the third air inlet mesh closest to the first air inlet mesh, the airflow first passes through the elastic vent and then through the third air inlet mesh. The porous structure of the elastic vent further filters out fine dust and particles that the first air inlet mesh could not block, preventing these impurities from entering the air duct and rubbing against components to generate additional noise. It also prevents impurities from clogging the mesh and affecting subsequent airflow rectification. In addition, because the elastic vent has elastic deformation capabilities, it can buffer vibrations caused by airflow impact, suppressing vibration transmission. The synergistic effect of the third air inlet mesh and the elastic vent further reduces the noise during the blower's operation, effectively improving the user experience.

[0007] In one embodiment, a tail cap is also included, partially disposed on the outside of the blower's air casing. The first air inlet mesh, the second air inlet mesh, the third air inlet mesh, and the elastic vent are all disposed on the tail cap. By centrally assembling the first air inlet mesh, the second air inlet mesh, the third air inlet mesh, and the elastic vent are all disposed on the tail cap, they are first assembled into an independent modular component during the production process, and then the entire modular component is assembled with the air casing. This modular design simplifies the blower's assembly process and improves the blower's production efficiency.

[0008] In one embodiment, the first air inlet screen is disposed outside the air duct, while the second air inlet screen, the third air inlet screen, and the elastic breathable element are all disposed inside the air duct. This improves the structural compactness of the hair dryer and helps to reduce its overall size. In actual implementation, when the first air inlet screen is disposed outside the air duct, it can be detachably connected to the tail cap. Since the first air inlet screen is disposed outside the air duct, it is convenient for the user to remove it from the outside of the air duct, thereby facilitating the user to clean debris (such as debris, hair, etc.) from the first air inlet screen.

[0009] In one embodiment, the tail cap includes a retaining ring and an adapter. The retaining ring is disposed outside the air duct, and the adapter is disposed at the air inlet end of the air duct, with a portion of the adapter located inside the air duct. A first air inlet screen is disposed on the retaining ring, and a second air inlet screen is connected to the adapter. The retaining ring and the adapter are detachably connected. The retaining ring provides support and mounting for the first air inlet screen, and the adapter provides support and mounting for the second air inlet screen. The detachable connection between the retaining ring and the adapter facilitates the removal of both the retaining ring and the first air inlet screen from the adapter for cleaning.

[0010] In one embodiment, the third air inlet mesh is attached to the side of the second air inlet mesh facing the first air inlet mesh. This ensures that the airflow first passes through the third air inlet mesh, which has a smaller mesh size, and then passes through the second air inlet mesh. Furthermore, attaching the third air inlet mesh to the second air inlet mesh minimizes the distance between them, improving their compactness and effectively reducing the overall space occupied by the air inlet mechanism on the air duct, which is beneficial for the miniaturization design of the blower.

[0011] In one embodiment, the second air inlet mesh includes a mesh body and a connecting protrusion surrounding the outer periphery of the mesh body. The connecting protrusion protrudes towards the fixing ring, and one end of the connecting protrusion away from the mesh body is connected to one side of the adapter. The third air inlet mesh is disposed on the side of the mesh body facing the first air inlet mesh. The adapter has a first magnetic suction member on the side facing away from the connecting protrusion, and the fixing ring has a second magnetic suction member. The second magnetic suction member can be attracted to the first magnetic suction member. The attraction between the second magnetic suction member on the fixing ring and the first magnetic suction member on the adapter facilitates the disassembly and assembly of the fixing ring and the adapter, making it convenient for the user to remove and assemble the tail cover, thereby facilitating cleaning of the air inlet mechanism.

[0012] In one embodiment, the adapter has a first mounting groove on the side facing away from the connecting protrusion, and at least a portion of the first magnetic member is disposed in the first mounting groove;

[0013] And / or, a second mounting groove is provided at one end of the fixing ring near the adapter, and a portion of the second magnetic member is disposed in the second mounting groove.

[0014] A first mounting groove is provided on the adapter to facilitate the positioning of the first magnetic component on the adapter, which is beneficial for the stable installation of the first magnetic component. Furthermore, the first mounting groove accommodates the first magnetic component, improving the structural compactness of the adapter and the first magnetic component. A second mounting groove is provided on the fixing ring to facilitate the installation of the second magnetic component on the fixing ring.

[0015] In one embodiment, the adapter has a third mounting groove on the side facing the mesh body, and the end of the connecting protrusion away from the mesh body is disposed in the third mounting groove, with the connecting protrusion flush with the air inlet end of the air duct. Aligning the connecting protrusion with the air inlet end of the air duct makes the structure of the second air inlet mesh and the air duct more compact, which helps to optimize the overall structure of the hair dryer and reduce its size.

[0016] In one embodiment, along the axial direction of the connecting protrusion, one end of the third mounting groove near the inner wall of the mesh body extends towards the mesh body and forms a limiting ring inside the connecting protrusion. The limiting ring abuts against the side of the third air inlet mesh facing the first air inlet mesh, and the elastic vent is disposed in the limiting ring. The elastic vent is pressed against the inner wall of the limiting ring, and the limiting ring prevents the elastic vent from moving radially along the limiting ring.

[0017] In one embodiment, the tail cap further includes a clamping member. The first air inlet mesh has a through-hole for fixing. One end of the clamping member protrudes from the side of the first air inlet mesh facing the outside of the air duct, and the other end passes through the fixing hole and abuts against the elastic ventilator, causing the elastic ventilator to drive the third air inlet mesh to adhere tightly to the mesh body. Through the clamping member's restraining action on the elastic ventilator, the elastic ventilator is effectively pressed against one side of the third air inlet mesh, ensuring the stable holding of the elastic ventilator, the third air inlet mesh, and the mesh portion of the second air inlet mesh.

[0018] In one embodiment, the first air inlet mesh, the second air inlet mesh, the third air inlet mesh, and the elastic vent are all disposed inside the air duct. The air duct can accommodate the first air inlet mesh, the second air inlet mesh, the third air inlet mesh, and the elastic vent, further reducing the size of the blower. Furthermore, placing the first air inlet mesh, the second air inlet mesh, the third air inlet mesh, and the elastic vent inside the blower's air duct also provides protection for the air inlet mechanism, reducing the risk of deformation caused by impacts from external objects and improving the blower's impact resistance.

[0019] In one embodiment, the second air inlet screen is provided with a second snap-fit ​​structure, and the air duct is provided with a second snap-fit ​​groove, wherein the second snap-fit ​​structure is engaged in the second snap-fit ​​groove;

[0020] And / or, the air duct is provided with a third snap-fit ​​structure, the second air inlet screen is provided with a third snap-fit ​​groove, and the third snap-fit ​​structure is engaged in the third snap-fit ​​groove.

[0021] The engagement of the second snap-fit ​​structure with the second snap-fit ​​groove and the third snap-fit ​​structure with the third snap-fit ​​groove enables a detachable connection between the air intake mechanism and the air duct. This facilitates the assembly of the air intake mechanism and the air duct, as well as the removal of the air intake mechanism from the air duct for cleaning. Furthermore, the second snap-fit ​​structure on the second air intake mesh engages with the second snap-fit ​​groove on the air duct, and the third snap-fit ​​structure on the air duct engages with the third snap-fit ​​groove in the second air intake mesh. This creates a hand-grip, locking structure between the second air intake mesh and the air duct, improving the connection stability between them.

[0022] In one embodiment, the second air inlet mesh has a honeycomb structure. This honeycomb structure consists of a large number of continuous, uniformly sized hexagonal channels. When turbulent airflow passes through these dense channels, the irregular airflow vortices inside are divided into multiple smaller vortices by the sidewalls of the honeycomb structure. Simultaneously, the channels of the honeycomb structure guide and constrain the airflow, causing it to flow along the axial direction of the channels (i.e., along the direction perpendicular to the mesh surface of the second air inlet mesh), thereby significantly suppressing lateral and irregular airflow movement. As the airflow passes through the mesh of the second air inlet mesh, this structure effectively reduces turbulence and smooths the flow field, further reducing the operating noise of the blower.

[0023] In one embodiment, the second air inlet mesh is provided with an avoidance notch, which is used to avoid the circuit board of the blower, thus facilitating the arrangement of the circuit board.

[0024] In one embodiment, the elastic breathable element is a sponge, a nonwoven fabric, a sintered mesh, or a polymer porous plate.

[0025] On the other hand, a hair dryer is also provided, including a nozzle and the aforementioned air intake mechanism. In this hair dryer, a third air intake mesh is disposed between the first and second air intake meshes, and an elastic vent is disposed between the third and first air intake meshes. During air intake, the airflow passes sequentially through the first air intake mesh, the elastic vent, the third air intake mesh, and the second air intake mesh. The first air intake mesh is used to block larger debris (such as debris, hair, etc.) from entering the air intake mechanism, preventing blockage, and can perform preliminary airflow rectification, reducing initial noise caused by large-scale airflow impact; the elastic vent has the ability to deform elastically, and can buffer the airflow when it flows through, reducing the airflow impact speed and absorbing some of the mid-to-high frequency noise generated by airflow impact. Furthermore, the internal porous structure of the elastic venting element can further filter out fine dust and particles that the first air inlet mesh fails to block, preventing such debris from entering the blower casing and rubbing against components to generate additional noise. It also prevents debris from clogging the mesh and affecting subsequent airflow rectification. When the airflow passes through the third air inlet mesh, the fine mesh disperses small-sized turbulent eddies in the airflow, making the airflow speed and direction more uniform before entering the blower casing, thus further reducing the blower's operating noise. In addition, because the elastic venting element is attached to the side of the third air inlet mesh closest to the first air inlet mesh, it effectively cushions the vibration of the third air inlet mesh when airflow impacts it. The synergistic effect of the third air inlet mesh and the elastic venting element further reduces the blower's operating noise, effectively improving the user experience. Attached Figure Description

[0026] Figure 1 This is a perspective view of a hair dryer in some embodiments of this application.

[0027] Figure 2 for Figure 1 The image shows a 3D view of the hair dryer's nozzle and air intake mechanism.

[0028] Figure 3 for Figure 2 The image shows a cross-sectional view of the blower's nozzle and air intake mechanism.

[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0030] Figure 5 This is an angled combination view of a portion of the clamping member, fixing ring, first air inlet mesh, adapter, third air inlet mesh, elastic breathable member, and air duct in some embodiments of this application.

[0031] Figure 6This is a combined view from another angle of portions of the clamping member, fixing ring, first air inlet mesh, adapter, third air inlet mesh, elastic ventilator, and air duct in some embodiments of this application.

[0032] Figure 7 This is an exploded view of parts of the clamping member, fixing ring, first air inlet mesh, adapter, third air inlet mesh, elastic breathable member, and air duct in some embodiments of this application.

[0033] Figure 8 This is a combined diagram of parts of the clamping member, fixing ring, first air inlet mesh, adapter, third air inlet mesh, elastic breathable member, second air inlet mesh and air duct in some embodiments of this application.

[0034] Figure 9 This is an exploded view of parts of the clamping member, fixing ring, first air inlet mesh, adapter, third air inlet mesh, elastic breathable member, second air inlet mesh, and air duct in some embodiments of this application.

[0035] Figure 10 This is a combination diagram of the clamping member, fixing ring, first air inlet mesh, adapter, third air inlet mesh, elastic breathable member and second air inlet mesh in some embodiments of this application.

[0036] Figure 11 This is an exploded view of the clamping member, fixing ring, first air inlet mesh, adapter, third air inlet mesh, elastic breathable member and second air inlet mesh in some embodiments of this application.

[0037] Figure 12 This is a perspective view of the fixing ring in some embodiments of this application.

[0038] Figure 13 This is a perspective view of the second air inlet mesh in some embodiments of this application.

[0039] Figure 14 This is an exploded view of the fixing ring and the first air inlet mesh in some embodiments of this application.

[0040] In the diagram: 1. First air inlet mesh; 11. Fixing hole; 12. First snap-fit ​​structure; 2. Second air inlet mesh; 21. Mesh body; 22. Connecting protrusion ring; 23. Clearance notch; 24. Second snap-fit ​​structure; 25. Third snap-fit ​​groove; 26. Snap-fit ​​hole; 3. Third air inlet mesh; 4. Fixing ring; 41. First snap-fit ​​groove; 42. Second mounting groove; 5. Adapter; 51. First mounting groove; 52. Third mounting groove; 53. Limiting ring; 531. Snap-fit ​​protrusion; 6. Elastic breathable component; 7. Air duct; 71. Third snap-fit ​​structure; 72. Second snap-fit ​​groove; 8. First magnetic component; 9. Second magnetic component; 10. Pressing component; 101. Pressing part; 102. Elastic connecting part; 1021. Elastic body; 1022. Guide part. Detailed Implementation

[0041] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0042] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0043] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0045] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0047] In some embodiments, an air intake mechanism (hereinafter referred to as the air intake mechanism) for a hair dryer is provided, which is applied in the hair dryer.

[0048] The following section details the structure of the air intake mechanism integrated into a hair dryer. (See attached image.) Figures 1 to 4 , Figure 1 A perspective view of a hair dryer in some embodiments of this application is shown; Figure 2 for Figure 1 A 3D view of the hairdryer's nozzle and air intake mechanism; Figure 3 for Figure 2 A cross-sectional view of the blower's nozzle and air inlet mechanism; Figure 4 for Figure 3 Enlarged view of point A. The air intake mechanism includes a first air intake mesh 1, a second air intake mesh 2, a third air intake mesh 3, and an elastic breathable element 6. Among these, [the following is a description of the combination of elements]. Figure 9The third air inlet mesh 3 is positioned between the first air inlet mesh 1 and the second air inlet mesh 2. The mesh size of the third air inlet mesh 3 is smaller than that of the first air inlet mesh 1 and the second air inlet mesh 2, while the mesh size of the first air inlet mesh 1 is larger than that of the second air inlet mesh 2. An elastic breathable component 6 is attached to the side of the third air inlet mesh 3 closest to the first air inlet mesh 1. The elastic breathable component 6 is a porous structure with elastic deformation capability, allowing airflow to pass through its porous structure. The elastic breathable component 6 can buffer the airflow, reduce its impact velocity, and absorb some of the mid-to-high frequency noise generated by airflow impact. In this example, the elastic breathable component 6 is a sponge. In actual implementation, the elastic breathable component 6 can also be non-woven fabric, sintered mesh, or a polymer porous board, etc.

[0049] In this type of air intake mechanism, the third air intake net 3 is placed between the first air intake net 1 and the second air intake net 2, and the elastic breathable element 6 is placed between the third air intake net 3 and the first air intake net 1. When air is intake, the airflow passes through the first air intake net 1, the elastic breathable element 6, the third air intake net 3 and the second air intake net 2 in sequence. The first air inlet mesh 1 can prevent larger debris (such as debris and hair) from entering the air inlet mechanism, thus avoiding blockage. It also provides initial airflow rectification, reducing initial noise from large-scale airflow impacts. The elastic breathable element 6, with its elastic deformation capability, buffers the airflow as it passes through, reducing its impact speed and absorbing some of the mid-to-high frequency noise generated by airflow impact. Furthermore, the porous structure in the elastic breathable element 6 further filters out fine dust and particles not blocked by the first air inlet mesh 1, preventing them from entering the air duct 7 and causing additional noise through friction with components, and preventing debris from clogging the mesh and affecting subsequent rectification. When the airflow passes through the third air inlet mesh 3, the finer mesh breaks up small-sized turbulent eddies in the airflow, making the airflow more uniform in speed and direction before entering the air duct 7 through the second air inlet mesh 2, thereby helping to reduce the operating noise of the hair dryer. Furthermore, since the elastic breathable element 6 is attached to the side of the third air inlet mesh 3 closest to the first air inlet mesh 1, the airflow first passes through the elastic breathable element 6 and then through the third air inlet mesh 3. The porous structure of the elastic breathable element 6 further filters out fine dust and particles that the first air inlet mesh 1 could not block, preventing these impurities from entering the air duct 7 and rubbing against components to generate additional noise. It also prevents impurities from clogging the mesh and affecting subsequent airflow rectification. In addition, because the elastic breathable element 6 has elastic deformation capabilities, it can buffer the vibration of the third air inlet mesh 3 caused by airflow impact, suppressing vibration transmission. The synergistic effect of the third air inlet mesh 3 and the elastic breathable element 6 further reduces the noise during the operation of the hair dryer, effectively improving the user experience.

[0050] The second air inlet mesh 2 features a honeycomb structure. This honeycomb structure consists of numerous continuous, uniformly sized hexagonal channels. When turbulent airflow passes through these dense channels, the irregular airflow vortices within are divided into smaller vortices by the sidewalls of the honeycomb structure. Simultaneously, the channels of the honeycomb structure guide and constrain the airflow, causing it to flow along the axial direction of the channels (i.e., along the direction perpendicular to the mesh surface of the second air inlet mesh 2), thereby significantly suppressing lateral and irregular airflow movement. As the airflow passes through the mesh of the second air inlet mesh 2, this structure effectively reduces turbulence and smooths the flow field, further reducing the operating noise of the blower.

[0051] In some embodiments, the air inlet mechanism also includes a tail cap, which is partially disposed on the outside of the blower's air casing 7. The first air inlet mesh 1, the second air inlet mesh 2, the third air inlet mesh 3, and the elastic ventilator 6 are all disposed on the tail cap. With this air inlet mechanism structure, since the first air inlet mesh 1, the second air inlet mesh 2, the third air inlet mesh 3, and the elastic ventilator 6 are all disposed on the tail cap, they are first assembled into an independent modular component during the production process, and then the entire modular component is assembled with the air casing 7. This modular design simplifies the blower's assembly process and improves the blower's production efficiency.

[0052] In one example, the first air inlet screen 1 is located outside the air duct 7, while the second air inlet screen 2, the third air inlet screen 3, and the elastic breathable element 6 are all located inside the air duct 7. This improves the compactness of the hair dryer's structure and helps reduce its overall size. In actual implementation, when the first air inlet screen 1 is located outside the air duct 7, it can be detachably connected to the tail cap. Since the first air inlet screen 1 is located outside the air duct 7, it is easy for the user to remove it from the outside of the air duct 7, thus facilitating the cleaning of debris (such as crumbs, hair, etc.) from the first air inlet screen 1.

[0053] Combination Figures 3 to 7 The tail cap includes a retaining ring 4 and an adapter 5. The retaining ring 4 is located on the outside of the air duct 7, and the adapter 5 is located at the air inlet end of the air duct 7, with a portion of the adapter 5 located inside the air duct 7. The first air inlet mesh 1 is mounted on the retaining ring 4. Figure 10 and Figure 11 The second air inlet screen 2 is connected to the adapter 5, and the fixing ring 4 is detachably connected to the adapter 5. The fixing ring 4 provides support and installation for the first air inlet screen 1, and the adapter 5 provides support and installation for the second air inlet screen 2. The detachable connection between the fixing ring 4 and the adapter 5 facilitates the removal of the fixing ring 4 and the first air inlet screen 1 from the adapter 5 for cleaning.

[0054] In one example, combined Figure 14The first air inlet mesh 1 is engaged with the fixing ring 4. Specifically, one of the first air inlet mesh 1 and the fixing ring 4 is provided with a first engaging structure 12, and the other is provided with a first engaging groove 41. The first engaging structure 12 is engaged in the first engaging groove 41, realizing a detachable connection between the fixing ring 4 and the adapter 5. In this example, the first air inlet mesh 1 is provided with the first engaging structure 12, and the fixing ring 4 is provided with the first engaging groove 41. The first engaging structure 12 is an engaging protrusion, and the first engaging groove 41 is located on the inner side wall of the fixing ring 4. When assembling the air inlet mechanism, the first air inlet mesh 1 is inserted into the interior of the fixing ring 4, and the first engaging structure 12 is engaged in the first engaging groove 41, realizing the engagement between the first air inlet mesh 1 and the fixing ring 4.

[0055] To reduce the risk of the first air inlet screen 1 detaching from the fixing ring 4, multiple first snap-fit ​​structures 12 and first snap-fit ​​slots 41 are provided. Each first snap-fit ​​structure 12 corresponds to a first snap-fit ​​slot 41, and the first snap-fit ​​structure 12 snaps into its corresponding slot 41. For example, three, four, or five first snap-fit ​​structures 12 and first snap-fit ​​slots 41 can be provided. When multiple first snap-fit ​​slots 41 are provided, they are spaced apart around the axis of the fixing ring 4.

[0056] In another example, the first air inlet mesh 1 is bonded to the fixing ring 4 by an adhesive layer, thus achieving a detachable connection between the first air inlet mesh 1 and the fixing ring 4.

[0057] In another example, the first air inlet screen 1 is connected to the fixing ring 4 by screws, thus achieving a detachable connection between the first air inlet screen 1 and the fixing ring 4.

[0058] In actual implementation, the connection structure between the first air inlet screen 1 and the fixed ring 4 can be flexibly adjusted as needed. No specific restrictions are placed on the connection structure between the first air inlet screen 1 and the fixed ring 4 here.

[0059] In this example, the third air inlet mesh 3 is attached to the side of the second air inlet mesh 2 facing the first air inlet mesh 1. This ensures that the airflow first passes through the third air inlet mesh 3, which has a smaller mesh size, and then passes through the second air inlet mesh 2. Furthermore, by attaching the third air inlet mesh 3 to the second air inlet mesh 2, the distance between the two meshes is minimized, increasing their compactness. This effectively reduces the overall space occupied by the air inlet mechanism on the air duct 7, which is beneficial for the miniaturization design of the blower.

[0060] Combination Figure 3 , Figure 4 , Figure 9 and Figure 11The second air inlet mesh 2 includes a mesh body 21 and a connecting protrusion 22 surrounding the outer periphery of the mesh body 21. The connecting protrusion 22 protrudes towards the fixing ring 4. The end of the connecting protrusion 22 away from the mesh body 21 is connected to one side of the adapter 5, thus fixing the second air inlet mesh 2 to the adapter 5. The third air inlet mesh 3 is located on the side of the mesh body 21 facing the first air inlet mesh 1. The adapter 5 has a first magnetic suction member 8 on the side facing away from the connecting protrusion 22, and the fixing ring 4 has a second magnetic suction member 9. The second magnetic suction member 9 can be attracted to the first magnetic suction member 8. The attraction between the second magnetic suction member 9 on the fixing ring 4 and the first magnetic suction member 8 on the adapter 5 facilitates the disassembly and assembly of the fixing ring 4 and the adapter 5, making it convenient for users to disassemble and assemble the tail cover, thereby facilitating the cleaning of the air inlet mechanism.

[0061] In one example, combined Figure 4 , Figure 5 , Figure 6 and Figure 7 The adapter 5 has a first mounting groove 51 on the side facing away from the connecting protrusion 22, and at least a portion of the first magnetic member 8 is disposed in the first mounting groove 51. The first mounting groove 51 facilitates the positioning of the first magnetic member 8 on the adapter 5, promoting a stable installation of the first magnetic member 8. Furthermore, accommodating the first magnetic member 8 through the first mounting groove 51 improves the structural compactness of the adapter 5 and the first magnetic member 8. In actual implementation, the first magnetic member 8 is adhered to the first mounting groove 51.

[0062] In this example, a first mounting groove 51 is provided, and the first mounting groove 51 is distributed in a ring around the axis of the adapter 5, wherein the axis of the adapter 5 coincides with the axis of the fixing ring 4.

[0063] Of course, in other examples, the number of first mounting slots 51 can be flexibly adjusted as needed, and no specific limit is placed on the number of first mounting slots 51 here.

[0064] Combination Figure 4 and Figure 12 A second mounting groove 42 is provided at one end of the fixing ring 4 near the adapter 5, and part of the second magnetic member 9 is disposed in the second mounting groove 42. The second mounting groove 42 is provided on the fixing ring 4 to facilitate the installation of the second magnetic member 9 on the fixing ring 4.

[0065] In this example, the fixing ring 4 is provided with four second mounting slots 42, which are evenly distributed and spaced apart around the axis of the fixing ring 4. Each second mounting slot 42 is provided with a second magnetic member 9. The second magnetic member 9 is adhered to the second mounting slot 42 to fix the second magnetic member 9 in the fixing ring 4. By providing the second mounting slots 42 on the fixing ring 4, when the fixing ring 4 and the adapter 5 are assembled together, it can be ensured that there are four mutually attractive points between the fixing ring 4 and the adapter 5, which helps to balance the force between the fixing ring 4 and the adapter 5 and improve the connection stability between the fixing ring 4 and the adapter 5.

[0066] Of course, in other examples, the number of second mounting slots 42 can be flexibly set according to actual needs, such as setting the number of second mounting slots 42 to one, two, three or five, etc., and there is no limit to the number of second mounting slots 42 here.

[0067] It should be noted that in actual implementation, the first mounting groove 51 may not be provided on the adapter 5, and the first magnetic 8 may be directly installed on the side of the adapter 5 facing away from the connecting protrusion ring 22; the second mounting groove 42 may not be provided on the fixing ring 4, and the second magnetic 9 may be directly installed on the end of the fixing ring 4 near the adapter 5.

[0068] In this example, the second magnetic component 9 is a magnet, and the first magnetic component 8 is a magnet. It should be noted that when the second magnetic component 9 is a magnet, the first magnetic component 8 is not limited to a magnet, but can also be other components that can be attracted by the second magnetic component 9, such as components made of iron, nickel, or cobalt.

[0069] Furthermore, the adapter 5 has a third mounting groove 52 on the side facing the mesh body 21. The end of the connecting ring 22 away from the mesh body 21 is located in the third mounting groove 52, and the connecting ring 22 is flush with the air inlet end of the air duct 7. Setting the connecting ring 22 flush with the air inlet end of the air duct 7 makes the structure of the second air inlet mesh 2 and the air duct 7 more compact, which helps to optimize the overall structure of the blower and reduce the size of the blower.

[0070] Combination Figure 3 and Figure 4 Along the axial direction of the connecting protrusion 22, one end of the third mounting groove 52 near the inner wall of the mesh body 21 extends towards the mesh body 21, forming a limiting ring 53 inside the connecting protrusion 22. The limiting ring 53 abuts against the side of the third air inlet mesh 3 facing the first air inlet mesh 1, so that the third air inlet mesh 3 is tightly attached to the mesh body 21 of the second air inlet mesh 2. The elastic venting element 6 is disposed in the limiting ring 53. The elastic venting element 6 abuts against the inner wall of the limiting ring 53, and the limiting ring 53 prevents the elastic venting element 6 from moving radially along the limiting ring 53.

[0071] Combination Figure 10 and Figure 11 One of the limiting ring 53 and the connecting ring 22 is provided with a snap-fit ​​protrusion 531, and the other is provided with a snap-fit ​​hole 26. The snap-fit ​​protrusion 531 engages with the snap-fit ​​hole 26, allowing the second air inlet mesh 2 and the adapter 5 to be detachably connected, facilitating the assembly of the second air inlet mesh 2 and the adapter 5. In this example, the limiting ring 53 is provided with a snap-fit ​​protrusion 531, and the connecting ring 22 is provided with a snap-fit ​​hole 26.

[0072] To enhance the connection strength between the second air inlet 2 and the adapter 5, the limiting ring 53 is provided with at least two snap-fit ​​protrusions 531, and the connecting ring 22 is provided with at least two snap-fit ​​holes 26. The snap-fit ​​protrusions 531 and snap-fit ​​holes 26 correspond one-to-one, and the snap-fit ​​protrusions 531 snap into the corresponding snap-fit ​​holes 26. In this example, the limiting ring 53 is provided with four snap-fit ​​protrusions 531, which are spaced apart around the axis of the limiting ring 53. The connecting ring 22 is provided with four snap-fit ​​holes 26, which are spaced apart around the axis of the snap-fit ​​ring. The axis of the connecting ring 22 coincides with the axis of the limiting ring 53. Of course, in other examples, the number of snap-fit ​​protrusions 531 and snap-fit ​​holes 26 can be flexibly adjusted according to actual needs.

[0073] To prevent the elastic ventilator 6 from detaching from the third air inlet mesh 3 and to ensure that the elastic ventilator 6 is tightly attached to one side of the third air inlet mesh 3, the tail cap also includes a retaining member 10. The first air inlet mesh 1 has a through-hole 11. One end of the retaining member 10 protrudes from the side of the first air inlet mesh 1 facing the outside of the air duct 7, and the other end passes through the retaining hole 11 and abuts against the elastic ventilator 6, so that the elastic ventilator 6 drives the third air inlet mesh 3 to adhere tightly to the mesh body 21. Through the retaining action of the retaining member 10 on the elastic ventilator 6, the elastic ventilator 6 is effectively pressed against one side of the third air inlet mesh 3, ensuring that the mesh portions of the elastic ventilator 6, the third air inlet mesh 3, and the second air inlet mesh 2 are stably maintained.

[0074] In this example, combined Figure 5 and Figure 7 The pressing member 10 includes a pressing part 101 and an elastic connecting part 102 connected to the pressing part 101. The radial dimension of the pressing part 101 is larger than the radial dimension of the fixing hole 11. The pressing part 101 is located on the side of the first air inlet screen 1 facing the outside of the air duct 7. The elastic connecting part 102 passes through the fixing hole 11 and abuts against the elastic breathable member 6. The elastic connecting part 102 can undergo elastic deformation along the radial direction of the fixing hole 11.

[0075] Specifically, the elastic connection portion 102 includes a plurality of elastic bodies 1021, each connected to the pressing portion 101. The plurality of elastic bodies 1021 are spaced apart around the axis of the pressing portion 101, and the axis of the pressing portion 101 coincides with the axis of the fixing ring 4. In actual implementation, the radial dimension of the fixing hole 11 is slightly smaller than the radial dimension of the elastic connection portion 102. The pressing portion 101 applies a pressing force to the elastic body 1021, which forces the elastic body 1021 to undergo elastic deformation under the action of the pressing force, reducing the radial dimension of the elastic connection portion 102. This allows the elastic connection portion 102 to be pressed into the fixing hole 11 and to pass through the fixing hole 11 to abut against the elastic breathable member 6.

[0076] To facilitate the passage of the elastic connecting part 102 through the fixing hole 11, a guide part 1022 is provided at the end of the elastic body 1021 away from the pressing part 101, and the guide part 1022 protrudes from the outer side of the elastic body 1021. Multiple guide parts 1022 are provided, each corresponding to one of the elastic bodies 1021. When the pressing part 101 is pressed, the guidance of the guide parts 1022 helps the elastic body 1021 enter the fixing hole 11, reducing the difficulty of the elastic connecting part 102 passing through the fixing hole 11.

[0077] Furthermore, since the pressing part 101 is located on the side of the first air inlet 1 facing the outside of the air duct 7, it is convenient for the user to press.

[0078] In actual implementation, an indicator light can be installed on the pressing part 101 to display the working status of the fan.

[0079] In actual implementation, the fixing hole 11 can also be set as a threaded hole, and the outer periphery of the abutment 10 is provided with an external thread that mates with the threaded hole. Through the mutual cooperation of the threaded structure between the abutment 10 and the fixing hole 11, one end of the abutment 10 can also abut against the elastic breathable member 6; or, the abutment 10 can be interference-fitted into the fixing hole 11, and this structure can also make one end of the abutment 10 abut against the elastic breathable member 6.

[0080] In some embodiments of the air intake mechanism, the first air intake mesh 1, the second air intake mesh 2, the third air intake mesh 3, and the elastic ventilator 6 are all disposed inside the blower's air duct 7. The air duct 7 can accommodate the first air intake mesh 1, the second air intake mesh 2, the third air intake mesh 3, and the elastic ventilator 6, further reducing the size of the blower. Furthermore, by disposing of the first air intake mesh 1, the second air intake mesh 2, the third air intake mesh 3, and the elastic ventilator 6 inside the blower's air duct 7, the air duct 7 can also provide protection for the air intake mechanism, reducing the risk of deformation caused by impacts from external objects and improving the blower's impact resistance.

[0081] In some embodiments, see Figure 4 , Figure 7 , Figure 8 and Figure 9 The second air inlet 2 is equipped with a second snap-fit ​​structure 24, and the air duct 7 is equipped with a second snap-fit ​​groove 72. The second snap-fit ​​structure 24 is engaged with the second snap-fit ​​groove 72. Figure 3 , Figure 4 and Figure 5 The air duct 7 is provided with a third snap-fit ​​structure 71, and the second air inlet mesh 2 is provided with a third snap-fit ​​groove 25. The third snap-fit ​​structure 71 is engaged in the third snap-fit ​​groove 25. Through the engagement of the second snap-fit ​​structure 24 and the second snap-fit ​​groove 72, and the engagement of the third snap-fit ​​structure 71 and the third snap-fit ​​groove 25, the air inlet mechanism and the air duct 7 can be detachably connected, which facilitates the assembly of the air inlet mechanism and the air duct 7, and also facilitates the removal of the air inlet mechanism from the air duct 7 for cleaning.

[0082] In addition, the second snap-fit ​​structure 24 on the second air inlet net 2 is snapped into the second snap-fit ​​groove 72 on the air duct 7, and the third snap-fit ​​structure 71 on the air duct 7 is snapped into the third snap-fit ​​groove 25 in the second air inlet net 2, so that the second air inlet net 2 and the air duct 7 form a hand-held fastening and fixing structure, which helps to improve the connection stability between the second air inlet net 2 and the air duct 7.

[0083] When the second air inlet mesh 2 includes a connecting protrusion ring 22, both the second snap-fit ​​structure 24 and the third snap-fit ​​groove 25 are provided on the connecting protrusion ring 22 of the second air inlet mesh 2.

[0084] Of course, in actual implementation, a second snap-fit ​​structure 24 may be provided only on the second air inlet screen 2 and a second snap-fit ​​groove 72 may be provided on the air duct 7; or a third snap-fit ​​structure 71 may be provided only on the air duct 7 and a third snap-fit ​​groove 25 may be provided on the second air inlet screen 2.

[0085] In some embodiments, see Figure 9 and, Figure 11 and Figure 13 The second air inlet mesh 2 has a clearance notch 23 to allow the circuit board of the hair dryer to pass. It is understood that some hair dryers have indicator lights to show the working status of the hair dryer; for example, the indicator light illuminates when the hair dryer is working. These indicator lights are usually located on the circuit board. In this embodiment, the clearance notch 23 on the second air inlet mesh 2 allows the circuit board of the hair dryer to pass, which is beneficial for the arrangement of the circuit board.

[0086] In another embodiment, a hair dryer is also provided, which includes a blower casing 7 and an air intake mechanism of any of the above structures. In the air intake mechanism of this hair dryer, a third air intake mesh 3 is disposed between a first air intake mesh 1 and a second air intake mesh 2, and an elastic breathable element 6 is disposed between the third air intake mesh 3 and the first air intake mesh 1. During the air intake process, the airflow passes sequentially through the first air intake mesh 1, the elastic breathable element 6, the third air intake mesh 3, and the second air intake mesh 2, and finally enters the blower casing 7.

[0087] The first air inlet mesh 1 is used to block larger debris (such as debris, hair, etc.) from entering the air inlet mechanism, preventing blockage, and can perform preliminary airflow rectification, reducing the initial noise caused by large-scale airflow impact. The elastic breathable component 6 has the ability to deform elastically, which can buffer the airflow when it flows through, reduce the airflow impact speed, and absorb some of the mid-to-high frequency noise generated by airflow impact. In addition, the internal hole structure in the elastic breathable component 6 can further filter fine dust and particles that the first air inlet mesh 1 cannot block, preventing such debris from entering the air duct 7 and rubbing against the components to generate additional noise, while preventing debris from clogging the mesh and affecting the subsequent rectification effect. When the airflow flows through the third air inlet mesh 3, the fine mesh in the third air inlet mesh 3 disperses the small-sized turbulent eddies in the airflow, so that the speed and direction of the airflow tend to be uniform before entering the air duct 7 of the blower, thereby further reducing the operating noise of the blower. In addition, since the elastic breathable part 6 is attached to the side of the third air inlet mesh 3 close to the first air inlet mesh 1, when the airflow impact causes the third air inlet mesh 3 to vibrate, the elastic breathable part 6 can effectively buffer the vibration of the third air inlet mesh 3. Under the synergistic effect of the third air inlet mesh 3 and the elastic breathable part 6, the working noise of the hair dryer is further reduced, effectively improving the user experience.

[0088] The technical features of the above embodiments can be combined in certain ways. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0089] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An air inlet mechanism for a hair dryer, characterized in that, It includes a first air inlet mesh, a second air inlet mesh, a third air inlet mesh, and an elastic breathable element. The third air inlet mesh is disposed between the first air inlet mesh and the second air inlet mesh, and the mesh size of the third air inlet mesh is smaller than the mesh size of the first air inlet mesh and the second air inlet mesh. The elastic breathable element is attached to the side of the third air inlet mesh closer to the first air inlet mesh.

2. The air inlet mechanism of the hair dryer according to claim 1, characterized in that, It also includes a tail cap, part of which is disposed on the outside of the blower's air duct. The first air inlet mesh, the second air inlet mesh, the third air inlet mesh, and the elastic breathable element are all disposed on the tail cap.

3. The air inlet mechanism of the hair dryer according to claim 2, characterized in that, The first air inlet screen is disposed outside the air duct, while the second air inlet screen, the third air inlet screen, and the elastic breathable element are all disposed inside the air duct.

4. The air inlet mechanism of the hair dryer according to claim 3, characterized in that, The tail cap includes a fixing ring and an adapter. The fixing ring is disposed on the outside of the air duct, and the adapter is disposed on the air inlet end of the air duct, with a portion of the adapter located inside the air duct. The first air inlet mesh is disposed on the fixing ring, and the second air inlet mesh is connected to the adapter. The fixing ring and the adapter are detachably connected.

5. The air inlet mechanism of the hair dryer according to claim 4, characterized in that, The third air inlet mesh is attached to the side of the second air inlet mesh facing the first air inlet mesh.

6. The air inlet mechanism of the hair dryer according to claim 5, characterized in that, The second air inlet mesh includes a mesh body and a connecting protrusion ring surrounding the outer periphery of the mesh body. The connecting protrusion ring protrudes towards the fixing ring. The end of the connecting protrusion ring away from the mesh body is connected to one side of the adapter. The third air inlet mesh is disposed on the side of the mesh body facing the first air inlet mesh. The adapter is provided with a first magnetic suction member on the side facing away from the connecting protrusion ring. The fixing ring is provided with a second magnetic suction member. The second magnetic suction member can be attracted to the first magnetic suction member.

7. The air inlet mechanism of the hair dryer according to claim 6, characterized in that, The adapter has a first mounting groove on the side facing away from the connecting protrusion, and at least a portion of the first magnetic component is disposed in the first mounting groove. And / or, a second mounting groove is provided at one end of the fixing ring near the adapter, and a portion of the second magnetic member is disposed in the second mounting groove.

8. The air inlet mechanism of the hair dryer according to claim 6, characterized in that, The adapter has a third mounting groove on the side facing the net body, and the end of the connecting protrusion away from the net body is located in the third mounting groove, and the connecting protrusion is flush with the air inlet end of the air duct.

9. The air inlet mechanism of the hair dryer according to claim 8, characterized in that, Along the axial direction of the connecting protrusion, one end of the third mounting groove near the inner wall of the mesh body extends toward the mesh body and forms a limiting ring inside the connecting protrusion. The limiting ring abuts against the side of the third air inlet mesh facing the first air inlet mesh, and the elastic breathable element is disposed in the limiting ring.

10. The air inlet mechanism of the hair dryer according to any one of claims 6 to 9, characterized in that, The tail cap also includes a clamping member. The first air inlet mesh has a through-hole. One end of the clamping member protrudes from the side of the first air inlet mesh facing the outside of the air duct, and the other end passes through the through-hole and abuts against the elastic ventilator, so that the elastic ventilator drives the third air inlet mesh to adhere tightly to the mesh body.

11. The air inlet mechanism of the hair dryer according to claim 2, characterized in that, The first air inlet mesh, the second air inlet mesh, the third air inlet mesh, and the elastic breathable element are all disposed inside the air duct.

12. The air inlet mechanism of the hair dryer according to any one of claims 2 to 9 and 11, characterized in that, The second air inlet screen is provided with a second snap-fit ​​structure, and the air duct is provided with a second snap-fit ​​groove, and the second snap-fit ​​structure is engaged in the second snap-fit ​​groove; And / or, the air duct is provided with a third snap-fit ​​structure, the second air inlet screen is provided with a third snap-fit ​​groove, and the third snap-fit ​​structure is engaged in the third snap-fit ​​groove.

13. The air inlet mechanism of the hair dryer according to any one of claims 1 to 9 and 11, characterized in that, The second air inlet mesh has a honeycomb structure.

14. The air inlet mechanism of the hair dryer according to any one of claims 1 to 9 and 11, characterized in that, The second air inlet mesh is provided with a clearance notch, which is used to avoid the circuit board of the hair dryer.

15. The air inlet mechanism of the hair dryer according to any one of claims 1 to 9 and 11, characterized in that, The elastic breathable component is a sponge, non-woven fabric, sintered mesh, or polymer porous plate.

16. A hair dryer, characterized in that, Includes a blower duct and the air intake mechanism of the blower as described in any one of claims 1 to 15.

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