An air intake structure for a hair blower robot
By employing a double-layer shell structure and noise reduction design, the problem of dust and noise at the air inlet of the hair dryer is solved, achieving dustproof and noise reduction effects and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN ZHENGQI INNOVATION ELECTRONICS CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-30
AI Technical Summary
The air inlet design of existing hair dryers leads to dust and noise problems, and the devices are also bulky, which is not conducive to aesthetics and portability.
It adopts a double-shell structure design, with the air inlet and outlet separated. The installation gap is used as a sound insulation cavity. Combined with dustproof net and noise reduction cotton, it forms a long blower duct to avoid direct contact of dust and noise transmission.
It effectively reduces dust accumulation, lowers noise, and improves the aesthetics and portability of the equipment.
Smart Images

Figure CN224420339U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of hair drying robots, and more particularly to an air intake structure for a hair drying robot. Background Technology
[0002] Hair drying equipment refers to power tools specifically designed for drying, conditioning, and styling hair, including hair drying robots and hair dryers.
[0003] Existing hair dryers use a short air duct structure design, meaning the distance between the air inlet and outlet is short. This design causes a local negative pressure to form at the air inlet, and the air inlet is directly exposed to the outside. As a result, it actively draws in dust, hair, and other particulate matter from the surrounding air. At the same time, this short air duct design generates a lot of noise during the operation of the equipment.
[0004] However, the rotary motor in this patent is located on one side of the fan and is connected by gear meshing. This structural design increases the layout space, resulting in a larger device size, which is not conducive to aesthetics and portability. At the same time, the use of gear transmission is prone to generating noise and vibration, affecting the user experience.
[0005] Therefore, there is an urgent need to solve the technical problem of the air intake structure of a hair-blowing robot.
[0006] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is prior art. Utility Model Content
[0007] The main purpose of this application is to provide an air intake structure for a hair dryer robot, which aims to solve the problems of short air intake distance in existing hair dryer equipment, which makes the air intake position prone to dust accumulation and high noise during use.
[0008] To achieve the above objectives, this application provides an air intake structure for a hair dryer robot, including an outer shell and an inner shell. The inner shell is disposed within the outer shell, and an installation gap exists between the outer shell and the inner shell. One end of the inner shell is an air outlet interface. A blower assembly is disposed in the inner shell near the air outlet interface, and an air inlet penetrating the inner shell and the outer shell is opened at the other end near the inner shell. A blower duct is disposed in the inner shell between the blower assembly and the air inlet. The air inlet communicates with the blower duct and the installation gap. A dustproof net is disposed at the air inlet, and the dustproof net has several through holes for multi-directional air intake.
[0009] As a preferred embodiment of this application, the blower assembly includes a motor and an impeller, a first mounting groove is provided in the inner shell, the motor is located in the first mounting groove, and the output end of the motor is connected to the impeller.
[0010] As a preferred embodiment of this application, it further includes a second mounting groove and a first noise-reducing cotton. The inner shell is provided with the second mounting groove at both ends of the first mounting groove, and the first noise-reducing cotton is disposed in the second mounting groove.
[0011] As a preferred embodiment of this application, it further includes a third mounting groove and a second noise-reducing cotton, wherein the third mounting groove is provided on the blower duct and the second noise-reducing cotton is provided in the third mounting groove.
[0012] As a preferred embodiment of this application, it further includes a wire inlet and a wire groove. The wire inlet is provided near the air outlet interface of the inner shell. One end of the wire inlet extends along the axial direction of the inner shell to the end of the inner shell. A plurality of wire grooves are provided. An inclined structure is provided between the wire inlet and the wire grooves.
[0013] As a preferred embodiment of this application, a decorative ring is also included, wherein the air inlet is located between the inner shell and the outer shell and the decorative ring is disposed thereon.
[0014] As a preferred embodiment of this application, the inner shell includes a first inner shell and a second inner shell. The first inner shell has a plurality of grooves, and the second inner shell has a plurality of protrusions. The plurality of grooves and the plurality of protrusions are adapted to each other.
[0015] As a preferred embodiment of this application, the central axis of the air inlet is perpendicular to the central axis of the blower assembly.
[0016] As a preferred embodiment of this application, the air inlet is a rectangular or oblong hole.
[0017] As a preferred embodiment of this application, the outer shell is made using an aluminum extrusion process, and all exposed corners of the outer shell are provided with rounded corner structures.
[0018] This application provides an air intake structure for a hair-drying robot, which adopts a double-shell design. The installation gap between the outer shell and the inner shell can serve as a sound insulation cavity to block noise from propagating outward. At the same time, by separating the air inlet and outlet, a short air duct structure is avoided. The design of embedding the air inlet within the inner and outer shells reduces direct contact with dust and particulate matter in the air, thus reducing dust accumulation at the air inlet. Furthermore, the air inlet is located far from the air outlet interface, forming a longer blower duct. During use, this avoids the problem of a short air duct structure creating local negative pressure at the air inlet and actively drawing in dust from the surrounding air. Attached Figure Description
[0019] Figure 1This is a three-dimensional structural diagram of the air intake structure of a hair-drying robot according to an embodiment of this application;
[0020] Figure 2 This is a cross-sectional view of the air intake structure of a hair-drying robot according to an embodiment of this application;
[0021] Figure 3 This is an exploded view of the air intake structure of a hair-drying robot according to an embodiment of this application;
[0022] Figure 4 This is a structural diagram of the second housing in the air intake structure of a hair-drying robot according to an embodiment of this application;
[0023] Figure 5 This is a schematic diagram of the air inlet of the air intake structure of a hair-drying robot according to one embodiment of this application.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Outer shell; 2. Inner shell; 3. Blower assembly; 4. Air inlet; 5. Dustproof mesh; 6. First noise reduction cotton; 7. Second noise reduction cotton; 8. Wiring port; 9. Wire channel; 10. Decorative ring; 11. Sound insulation cavity;
[0026] 21. First inner shell; 22. Second inner shell; Detailed Implementation
[0027] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0028] Furthermore, descriptions using terms such as "first" and "second" in this application are for descriptive purposes only (e.g., to distinguish identical or similar elements) and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, technical solutions from different embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, such a combination should be considered nonexistent and not within the scope of protection claimed in this application.
[0029] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 In one embodiment, an air intake structure for a hair dryer robot includes an outer shell 1 and an inner shell 2. The inner shell 2 is disposed within the outer shell 1, and there is an installation gap 11 between the outer shell 1 and the inner shell 2. One end of the inner shell 2 is an air outlet interface. A blower assembly 3 is disposed at one end of the inner shell 2 near the air outlet interface, and an air inlet 4 penetrating the inner shell 2 and the outer shell 1 is provided at the other end of the inner shell 2. A blower duct is disposed between the blower assembly 3 and the air inlet 4 in the inner shell 2. The air inlet 4 is connected to the blower duct and the installation gap. A dustproof net 5 is disposed at the air inlet 4, and several through holes for multi-directional air intake are provided on the dustproof net 5.
[0030] Specifically, the central axis of the air inlet 4 is perpendicular to the central axis of the blower assembly 3. The shape of the air inlet 4 is a rectangular hole or an oblong hole. Preferably, the air inlet 4 is an oblong hole. It can be understood that the shape of the dustproof net 5 is adapted to the air inlet. The entire dustproof net 5 is densely covered with several through holes for multi-directional air intake (not shown in the figure). Since there is an installation gap between the outer shell 1 and the inner shell 2, the air inlet 4 is not only connected to the blower duct, but also connected to the installation gap. The air blown in by the blower assembly 3 can be multi-directionally intake through the through holes opened in the dustproof net, and finally merge into the blower duct. That is, the air inlet 4 can perform 360° circumferential air intake.
[0031] It is understood that the air intake structure provided in this application adopts a double-shell structure design. After the outer shell 1 and the inner shell 2 are installed, an installation gap or air layer is formed between them. This installation gap can serve as a sound insulation cavity 11, which can play a certain role in noise reduction and block noise from spreading outward. At the same time, by separating the air inlet 4 from the air outlet, a short air duct structure is avoided. The structure design of embedding the air inlet 4 in the inner shell 2 and the outer shell 1 can reduce direct contact with dust and particulate matter in the air and reduce the occurrence of dust contamination at the air inlet 4. Furthermore, the position of the air inlet 4 is far away from the air outlet interface, which can form a longer blower air duct. During use, it can avoid the problem of a short air duct structure forming a local negative pressure at the air inlet 4 and actively sucking in dust from the surrounding air.
[0032] Specifically, please refer to Figure 2 Based on the above embodiments, the blower assembly 3 includes a motor and an impeller. A first mounting groove is provided in the inner shell 2, the motor is located in the first mounting groove, and the motor output end is connected to the impeller.
[0033] It is understood that in this embodiment, the impeller is driven to rotate by a motor, which blows in external air from the air inlet 4. The air enters the air outlet along the blower duct to achieve air intake. Preferably, the blower assembly 3 can also be a fan, which blows air.
[0034] Specifically, please refer to Figure 2 , Figure 3 Based on the above embodiments, it also includes a second mounting groove and a first noise reduction cotton 6. The inner shell 2 is provided with a second mounting groove at both ends of the first mounting groove, and the first noise reduction cotton 6 is provided in the second mounting groove.
[0035] Furthermore, it also includes a third mounting slot and a second noise reduction cotton 7. The third mounting slot is provided on the blower duct, and the second noise reduction cotton 7 is provided in the third mounting slot.
[0036] It is understandable that by setting the second and third mounting slots, the positions of the first noise-reducing cotton 6 and the second noise-reducing cotton 7 can be fixed. The first noise-reducing cotton 6 and the second noise-reducing cotton 7 can be made of chemical fiber material. The elastic properties of the noise-reducing cotton can absorb the vibration energy of the air duct wall and reduce the transmission of sound through the structure, thereby achieving the noise reduction effect of the hair-drying robot during operation.
[0037] Specifically, please refer to Figure 4 Based on the above embodiments, it also includes a wire passage 8 and a wire groove 9. The inner shell 2 is provided with a wire passage 8 near the air outlet interface. One end of the wire passage 8 extends along the axial direction of the inner shell 2 to the end of the inner shell 2, and a plurality of wire grooves 9 are provided. An inclined structure is provided between the wire passage 8 and the wire grooves 9.
[0038] It is understandable that the inclined structure causes the cable to naturally turn from the vertical entry direction of the cable through the cable port 8 to the horizontal extension direction of the wire groove 9, avoiding right-angle bends. By setting the cable through the cable port 8 and the wire groove 9, the cables in the hair dryer can be neatly stored or guided, avoiding situations such as wire tangling.
[0039] Specifically, please refer to Figure 3 Based on the above embodiments, a decorative ring 10 is also included, and the air inlet 4 is provided with a decorative ring 10 between the inner shell 2 and the outer shell 1.
[0040] It is understandable that the decorative ring 10 is made of aluminum, which can serve as decoration and a certain sealing effect. The decorative ring 10 can be used to fill the assembly gap between the inner shell 2 and the outer shell 1 to form a relatively sealed space, preventing dust, hair and other particles from seeping into the blower duct. At the same time, the decorative ring 10 can be used to limit the position of the dustproof net 5, effectively preventing the dustproof net 5 from falling off.
[0041] Specifically, please refer to Figure 3 Based on the above embodiments, the inner shell 2 includes a first inner shell 21 and a second inner shell 22. The first inner shell 21 has a plurality of grooves, and the second inner shell 22 has a plurality of protrusions. The plurality of grooves and the plurality of protrusions are adapted to each other.
[0042] It is understandable that the first inner shell 21 and the second inner shell 22 are connected by grooves and protrusions to avoid misalignment during manual assembly, while reducing assembly complexity and reliance on screw connections.
[0043] Specifically, please refer to Figure 1 Based on the above embodiments, the outer shell 1 is made of aluminum extrusion process, and all exposed corners of the outer shell 1 are provided with rounded corner structure.
[0044] It is understandable that rounded corners prevent users from being scratched when they touch the surface, reduce the risk of injury to children from accidental collisions, and conform to ergonomic design.
[0045] In summary, the air intake structure of the hair-drying robot provided in this application connects to the air outlet device through the air outlet device interface, and uses the blower component 3 to blow external air into the blower duct. Then, the air is blown through the air outlet device to achieve operations such as drying and conditioning the user's hair. This application can achieve a dustproof effect by embedding the air inlet 4 inside the inner shell 2. The structural design of the inlet being far away from the air outlet device interface forms a longer blower duct. Combined with the first noise reduction cotton 6 and the second noise reduction cotton 7, a noise reduction effect is achieved during operation.
[0046] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, apparatus, article, or method. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, apparatus, article, or method that includes that element.
[0047] The above description is only a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural changes made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.
Claims
1. An air intake structure of a blow-drying robot, characterized by comprising: The device includes an outer shell and an inner shell, the inner shell being disposed within the outer shell, and an installation gap existing between the outer shell and the inner shell. One end of the inner shell is an air outlet interface, and a blower assembly is disposed in the inner shell near the air outlet interface. An air inlet penetrating the inner shell and the outer shell is provided at the other end near the inner shell. An air duct is provided in the inner shell between the blower assembly and the air inlet. The air inlet is connected to the air duct and the installation gap. A dustproof net is provided at the air inlet, and the dustproof net has several through holes for multi-directional air intake.
2. The air intake structure of a hair-drying robot according to claim 1, characterized in that, The blower assembly includes a motor and an impeller. A first mounting groove is provided in the inner shell, the motor is located in the first mounting groove, and the output end of the motor is connected to the impeller.
3. The air intake structure of a hair-drying robot according to claim 2, characterized in that, It also includes a second mounting groove and a first noise-reducing cotton. The inner shell is provided with the second mounting groove at both ends of the first mounting groove, and the first noise-reducing cotton is provided in the second mounting groove.
4. The air intake structure of a hair-drying robot according to claim 1, characterized in that, It also includes a third mounting slot and a second noise-reducing cotton. The third mounting slot is provided on the blower duct, and the second noise-reducing cotton is provided in the third mounting slot.
5. The air intake structure of a hair-drying robot according to claim 3, characterized in that, It also includes a wire inlet and a wire groove. The wire inlet is provided near the air outlet interface of the inner shell. One end of the wire inlet extends along the axial direction of the inner shell to the end of the inner shell. Several wire grooves are provided. An inclined structure is provided between the wire inlet and the wire grooves.
6. The air intake structure of a hair-drying robot according to claim 1, characterized in that, It also includes a decorative ring, and the air inlet is located between the inner shell and the outer shell with the decorative ring.
7. The air intake structure of a hair-drying robot according to claim 5, characterized in that, The inner shell includes a first inner shell and a second inner shell. The first inner shell has a plurality of grooves, and the second inner shell has a plurality of protrusions. The plurality of grooves and the plurality of protrusions are adapted to each other.
8. The air intake structure of a hair-drying robot according to claim 2, characterized in that, The central axis of the air inlet is perpendicular to the central axis of the blower assembly.
9. The air intake structure of a hair-drying robot according to claim 8, characterized in that, The air inlet is shaped like a rectangular hole or an oblong hole.
10. The air intake structure of a hair-drying robot according to claim 1, characterized in that, The outer shell is made using an aluminum extrusion process, and all exposed corners of the outer shell are rounded.