Hot air comb

By designing a dual-opening and closing structure with hot air outlets on both the left and right sides and an air guide plate on the hot air comb, the problem of uncontrollable airflow direction is solved, achieving smooth and directional combing of hair and improving operational comfort.

CN224140346UActive Publication Date: 2026-04-21申炜杰
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
申炜杰
Filing Date
2025-03-24
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing hot air combs have uncontrollable airflow direction, causing hair to become frizzy, making them inconvenient to use and easily causing wrist fatigue.

Method used

The design incorporates a dual-opening and closing structure for the hot air outlets on both the left and right sides. The direction of airflow is controlled by rotating the outlet bracket, and the airflow distribution is optimized by combining the air guide plate and the air distribution rib plate.

Benefits of technology

It enables the hot air to flow in a directional manner along the combing direction, reducing hair flyaways, improving styling smoothness and operation comfort, and reducing user fatigue.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hot air comb, which relates to the technical field of articles for daily use, and comprises a shell, at least two hot air outlets, a comb tooth base, comb teeth arranged on the comb tooth base, a heating component and a fan facing the heating component, and the hot air outlets are distributed on the left side and the right side of the comb teeth; the hot air outlets only have a closed state and an open state, and the hot air outlets in the left side and the right side of the comb teeth are different in state. The opened left hot air outlet faces rightwards; and the right hot air outlet in the open state faces leftwards. By means of the binary opening and closing design of the hot air outlets on the left side and the right side, hot air is forcibly restrained to directionally flow only in the combing direction, disordered turbulent flow is thoroughly eliminated, the hot air is made to flow strictly parallel to hair, the phenomenon that hair tips fly up is obviously reduced, and the modeling smoothness is improved; by switching the states of the hot air outlets on the left side and the right side, the airflow direction is consistent with the natural carding direction when a user holds the device with the left hand or the right hand.
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Description

Technical Field

[0001] This utility model relates to the field of daily necessities technology, and more specifically, to a hot air comb. Background Technology

[0002] Traditional hot air combs, as hair styling tools, primarily function to accelerate hair drying and aid in styling through hot air. However, existing technology suffers from several key drawbacks directly related to airflow direction control: Most current hot air combs employ an open design with ring-shaped or circumferentially distributed air outlets, allowing hot air to diffuse indiscriminately from all sides of the comb teeth. This design results in uncontrollable airflow direction. During combing, multi-directional heat flow disrupts the directional arrangement of hair cuticles, especially at the ends where reverse airflow can easily cause frizz and split ends. The disordered airflow not only fails to effectively guide hair but also exacerbates hair frizz, significantly reducing styling smoothness. Furthermore, because the air outlet direction is fixed, when users switch hands (e.g., left-handed users comb to the left, right-handed users comb to the right), the hot airflow direction easily forms an angle with the combing direction. This forces users to adjust their wrist angle to compensate for the airflow deviation, leading to decreased operating comfort, wrist fatigue with prolonged use, and low operating efficiency. Utility Model Content

[0003] The present invention provides a hot air comb that can solve the above-mentioned problems.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0005] A hot air comb includes a housing, hot air outlets, a comb tooth base, comb teeth disposed on the comb tooth base, a heating element, and a fan facing the heating element. The hot air outlets are at least two and are distributed on the left and right sides of the comb teeth. The hot air outlets have only two states: closed and open. The states of the hot air outlets on the left and right sides of the comb teeth are different. The left hot air outlet, when open, faces to the right. The right hot air outlet, when open, faces to the left.

[0006] As a further description of the aforementioned hot air comb, it also includes an air outlet bracket of a plate-like structure installed on the outer casing, which is an arc plate structure with a non-circular cross-section; the comb tooth base is located inside the air outlet bracket; the hot air outlet on the left is surrounded by the left edge of the comb tooth base and the air outlet bracket, and the hot air outlet on the right is surrounded by the right edge of the comb tooth base and the air outlet bracket.

[0007] As a further description of the aforementioned hot air comb, by rotating the air outlet bracket counterclockwise, the left edge of the air outlet bracket can be made to fit against the left edge of the comb base, and the right edge of the air outlet bracket can be made to disengage from the right edge of the comb base, thereby closing the left hot air outlet and opening the right hot air outlet; by rotating the air outlet bracket clockwise, the left edge of the air outlet bracket can be made to disengage from the left edge of the comb base, and the right edge of the air outlet bracket can be made to fit against the right edge of the comb base, thereby opening the left hot air outlet and closing the right hot air outlet.

[0008] As a further description of the hot air comb, the left edge of the air outlet bracket and the left edge of the comb base are mutually matching beveled surfaces; the right edge of the air outlet bracket and the right edge of the comb base are mutually matching beveled surfaces.

[0009] As a further description of the hot air comb mentioned above, the outer arc surface of the air outlet bracket near the left and right edges is provided with several distribution ribs.

[0010] As a further description of the hot air comb, the air outlet bracket is provided with an air guide plate located directly below the comb tooth base and used to guide air to the hot air outlet. The air guide plate is an arc plate structure with an outer arc surface matching and fitting the inner arc surface of the air outlet bracket, and the inner arc surface is provided with several air-dividing ribs. The heating element is installed in the air guide plate and located directly below the comb tooth base.

[0011] As a further description of the hot air comb, the heating component is a cuboid structure, including a heating wire support and a heating wire wound around the heating wire support. The heating wire support is a hollow structure, with an air inlet at one end facing the fan, and several hollow holes on the other surfaces serving as air outlets.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1) The dual-opening and closing design of the hot air outlets on the left and right sides forces the hot air to flow only in the direction of combing (left outlet to the right, right outlet to the left). This design completely eliminates disordered turbulence and makes the hot air strictly parallel to the flow of hair, significantly reducing hair flipping and improving the smoothness of styling. When the user holds the hair with their left hand, rotating the air outlet bracket clockwise opens the left outlet (blowing air to the right), and the airflow direction is consistent with the natural combing direction of the left hand. When holding the hair with the right hand, rotating the bracket counterclockwise opens the right outlet (blowing air to the left). This design enables seamless switching between left and right hand operation, greatly reducing operator fatigue and improving user comfort.

[0014] 2) The parting ribs form a combing guide structure at the airflow outlet to help separate tangled hair strands and avoid pulling damage; the combination design of the air guide plate and the parting ribs optimizes the uniformity of airflow distribution, avoids local overheating, and protects hair health.

[0015] 3) The front-mounted layout of the heating element makes it easier to shorten the product length and improve the balance of holding it.

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, embodiments of this utility model are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an overall structural diagram of the hot air comb described in the embodiment;

[0019] Figure 2 This is an axial cross-sectional view of the hot air comb described in the embodiment;

[0020] Figure 3 This is a radial cross-sectional view of the hot air comb described in the embodiment;

[0021] Figure 4 This is a structural diagram of the air outlet bracket described in the embodiment;

[0022] Figure 5 This is a structural diagram of the air guide plate described in the embodiment;

[0023] In the diagram: 1. Soft comb teeth; 2. Heating wire; 3. Fan; 4. Hot air outlet; 5. Hard comb teeth; 6. Comb tooth base; 7. Heating wire bracket; 8. Outer shell; 9. Distribution rib; 10. Air guide plate; 11. Air inlet; 12. Air outlet bracket; 13. Bracket rotation operation part; 14. Distribution rib; 15. Switch connection part; 16. Air guide plate connection part; 17. Base connecting column; 18. Inlet. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0025] Please refer to Figures 1-5 This utility model provides a hot air comb, including a housing 8, a hot air outlet 4, a comb tooth base 6, comb teeth disposed on the comb tooth base 6, a heating element, and a fan 3 facing the heating element.

[0026] In this embodiment, an air inlet 11 with a filter screen is provided at the rear of the outer casing 8. When the fan 3 blows air forward, outside air can be introduced through this inlet, and the filter screen can isolate dust and other impurities in the airflow. After the airflow passes through the circuit board, it passes through the fan 3, and is heated after passing through the heating element, before flowing to the hot air outlet 4.

[0027] In this embodiment, there are two hot air outlets 4, located on the left and right sides of the comb teeth respectively. The hot air outlets 4 have only two states: closed and open. The states of the hot air outlets 4 on the left and right sides of the comb teeth are different. The left hot air outlet 4, which is in the open state, faces to the right. The right hot air outlet 4, which is in the open state, faces to the left. When the hot air outlet 4 is open, it faces the lower half of the comb teeth.

[0028] Therefore, this hot air comb can generate airflow in two different directions, allowing you to style your hair with either your left or right hand, making it convenient, comfortable, and easy to use. The hot airflow passes over the comb teeth and then flows along the ends of the hair, parallel to the hair shaft, resulting in smooth hair after styling and preventing the ends from flipping. The warm airflow dries and styles the hair simultaneously, quickly drying it and reducing styling time—a simple and efficient method.

[0029] Furthermore, an air outlet bracket 12 with a plate-like structure is installed inside the outer casing 8. It is an arc plate structure with a non-circular cross-section. The comb base 6 is located inside the air outlet bracket 12. The left hot air outlet 4 is surrounded by the comb base 6 and the left edge of the air outlet bracket 12, and the right hot air outlet 4 is surrounded by the comb base 6 and the right edge of the air outlet bracket 12.

[0030] Combination Figure 2 As shown, by rotating the air outlet bracket 12 counterclockwise, the left edge of the air outlet bracket 12 can be made to fit against the left edge of the comb base 6, and the right edge of the air outlet bracket 12 can be made to disengage from the right edge of the comb base 6, thereby closing the left hot air outlet 4 and opening the right hot air outlet 4; by rotating the air outlet bracket 12 clockwise, the left edge of the air outlet bracket 12 can be made to disengage from the left edge of the comb base 6, and the right edge of the air outlet bracket 12 can be made to fit against the right edge of the comb base 6, thereby opening the left hot air outlet 4 and closing the right hot air outlet 4.

[0031] In order to open or close the hot air outlet 4 more precisely, the left edge of the air outlet bracket 12 and the left edge of the comb base 6 are mutually matching beveled surfaces, and the right edge of the air outlet bracket 12 and the right edge of the comb base 6 are mutually matching beveled surfaces.

[0032] Furthermore, several distribution stiffeners 9 are provided on the outer arc surface near the left and right edges of the air outlet bracket 12, see Figure 2 and Figure 4 As shown, this structure can effectively separate the hair ends, making them smooth and tangle-free.

[0033] Furthermore, combined Figures 2-5 As shown, an air outlet bracket 12 is provided with an air guide plate 10 located directly below the comb base 6 and used to guide air to the hot air outlet 4. The air guide plate 10 is connected to the air guide plate connecting part 16, and the comb base 6 is connected to the base connecting column 17 in the air guide plate 10 by screws. The air guide plate 10 is an arc plate structure with an outer arc surface that matches and fits the inner arc surface of the air outlet bracket 12.

[0034] Several air-dividing ribs 14 are provided on the inner arc surface of the air guide plate 10, such as... Figure 5 As shown, this structure can precisely guide airflow to the open hot air outlet 4, ensuring an even temperature distribution of the hot airflow exiting the hot air outlet 4. The airflow exiting the hot air outlet 4 flows over the comb teeth, following the direction of the hair to the ends. During use, the airflow flows parallel to the direction of the hair, making the hair smooth and preventing the ends from sticking up. The even airflow ensures that the hair is heated evenly.

[0035] The heating element is installed inside the air guide plate 10 and located directly below the comb base 6, rather than behind the comb base 6. This design makes it easier to shorten the length of the outer shell 8 during production, thus shortening the overall length of the hot air comb, making it comfortable to grip, easy to use, and convenient to store.

[0036] like Figure 5 As shown, the air guide plate 10 has a flared inlet 18 at its tail, through which the fan 3 delivers airflow to the heating element. The heating element is a cuboid structure, including a heating wire support 7 and a heating wire 2 wound around the heating wire support 7. The heating wire support 7 has a hollow structure, with an air inlet at one end facing the fan 3, and several hollow holes on its other surfaces serving as air outlets. Airflow can pass through the middle of the heating element, carrying away heat.

[0037] In one optional embodiment of this utility model, such as Figure 2 As shown, the comb teeth include soft comb teeth 1 and hard comb teeth 5, with the soft comb teeth 1 surrounding the hard comb teeth 5.

[0038] In an optional embodiment of this utility model, a through hole is provided at the front end of the outer shell 8, and the bracket rotation operation part 13 of the air outlet bracket 12 extends out from the through hole. The bracket rotation operation part 13 is equivalent to a rotary switch.

[0039] As a simple design, the bracket rotation operation part 13 can be fixedly connected to the center of the front end of the air outlet bracket 12. By rotating the bracket rotation operation part 13, the air outlet bracket 12 can be rotated.

[0040] In addition, it can also be a toggle design, with the through hole at the front end of the housing 8 being a curved strip-shaped hole, and the bracket rotation operation part 13 being fixedly connected to the non-central position of the front end of the air outlet bracket 12, for example, with... Figure 4 The switch connection 15 is connected at the position shown. The bracket rotation operation part 13 can move along the curved strip hole. The curvature is designed so that by moving the bracket rotation operation part 13 along the strip hole, the air outlet bracket 12 can be rotated without interference.

[0041] In addition to the two rotating structure designs mentioned above, the bracket rotation operation part 13 can also be an electric switch or other structures that can drive the air outlet bracket 12 to rotate.

[0042] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hot air comb comprising a housing (8), a hot air outlet (4), a comb tooth base (6), comb teeth provided to the comb tooth base (6), a heating element, and a fan (3) directed towards the heating element, characterized in that, There are at least two hot air outlets (4), which are distributed on the left and right sides of the comb teeth. The hot air outlets (4) have only two states: closed and open. The states of the hot air outlets (4) on the left and right sides of the comb teeth are different. The left hot air outlet (4) in the open state faces to the right. The right hot air outlet (4) in the open state faces to the left.

2. The hot air comb of claim 1, wherein, It also includes an air outlet bracket (12) with a plate-like structure installed on the outer shell (8), which is an arc plate structure with a non-circular cross-section; the comb base (6) is located inside the air outlet bracket (12); the hot air outlet (4) on the left is surrounded by the left edge of the comb base (6) and the air outlet bracket (12), and the hot air outlet (4) on the right is surrounded by the right edge of the comb base (6) and the air outlet bracket (12).

3. The hot air comb of claim 2, wherein, By rotating the air outlet bracket (12) counterclockwise, the left edge of the air outlet bracket (12) can be made to fit against the left edge of the comb base (6), and the right edge of the air outlet bracket (12) can be made to disengage from the right edge of the comb base (6), thereby closing the left hot air outlet (4) and opening the right hot air outlet (4); by rotating the air outlet bracket (12) clockwise, the left edge of the air outlet bracket (12) can be made to disengage from the left edge of the comb base (6), and the right edge of the air outlet bracket (12) can be made to fit against the right edge of the comb base (6), thereby opening the left hot air outlet (4) and closing the right hot air outlet (4).

4. The hot air comb of claim 3, wherein, The left edge of the air outlet bracket (12) and the left edge of the comb base (6) are mutually matching beveled surfaces; the right edge of the air outlet bracket (12) and the right edge of the comb base (6) are mutually matching beveled surfaces.

5. The hot air comb of claim 2, wherein, The air outlet bracket (12) has several ribs (9) on its outer arc surface near the left and right edges.

6. The hot air comb of claim 2, wherein, The air outlet bracket (12) is provided with an air guide plate (10) located directly below the comb base (6) and used to guide air to the hot air outlet (4). The air guide plate (10) is an arc plate structure with an outer arc surface matching and fitting the inner arc surface of the air outlet bracket (12), and a plurality of air distribution ribs (14) are provided on the inner arc surface. The heating component is installed in the air guide plate (10) and located directly below the comb base (6).

7. The hot air comb of claim 6, wherein, The heating component is a cuboid structure, including a heating wire support (7) and a heating wire (2) wound around the heating wire support (7). The heating wire support (7) is a hollow structure, with an air inlet at one end facing the fan (3) and several hollow holes on the other surfaces serving as air outlets.