Windbrush head with smoothing windbrush

Abstract

Windbrush head, consisting of a brush head housing, a brush section, a heating element, and heated comb teeth. The brush head housing has an air outlet to which the brush section is attached. The heated comb teeth are connected to a heating element. Characterized by A thermal insulation box is located within the brush head housing, containing the heating element. Several air outlet holes are provided on the thermal insulation box, with the air outlet on the brush head housing connecting to the interior of the thermal insulation box via these air outlet holes. A thermal insulation cover is provided on the base of the heating element, separating the heating element and the heating comb teeth from the thermal insulation box and the heating element.

Description

Technical field

[0001] The present utility model relates to the field of hair care devices, in particular to a multifunctional hair straightening brush. background

[0002] Hair straightening combs, such as hot air brushes and straightening combs, are used to straighten hair. They primarily consist of a housing, a comb tooth assembly, and a handle assembly. Some models feature heating elements, heat-conducting metal teeth (heated comb teeth), and insulated teeth. Passing the hair over the heated metal teeth facilitates straightening. To improve functionality and enhance the straightening effect, certain models include a fan, creating a hot air brush with a hairdryer function. For example, Chinese utility model patent CN202320646335.5 discloses a heated hair straightening brush with a fan, a heating element frame, and a control board. Its body features smoothing, adhesive-coated tines, bristles, and metal teeth, with the heating elements positioned on the back of the metal teeth. This design allows for combing, drying, and straightening.However, current straightening brushes have several problems. For example, the heated comb teeth lack thermal insulation from the section of bristles that radiates air. As a result, the outward-directed hot air comes into contact with the heating element, causing it to remain at an elevated temperature even when not actively heating. This accelerates the aging of the heated comb teeth. Furthermore, the arrangement of the heating wires within the handle assembly not only places them far from the comb's air outlet, but also means the heated air takes longer to escape, resulting in greater heat loss. At the same time, the limited space within the handle assembly restricts the number of heating wires that can be accommodated, hindering efforts to increase heating power.Furthermore, installing the heating wires inside the handle requires a longer handle design. Subject of the utility model

[0003] This utility model addresses the shortcomings of existing technology by providing a windbrush head and a smoothing windbrush with a more rational design. This design prevents hot air from being blown onto the heating comb teeth, minimizes heat loss from the hot air, allows for higher heating performance, and reduces the dimensions of the handle assembly.

[0004] To solve the aforementioned technical problems, the present utility model employs the following technical solution: A wind-powered brush head comprising a brush head housing, a brush bristle section, a heating element, and heated comb teeth. The brush head housing has an air outlet on which the brush bristle section is mounted. The heated comb teeth are configured to be connected to a heating element. A thermal insulation box is provided within the brush head housing, which contains the heating element; several air outlet holes are formed in the thermal insulation box, connecting the air outlet of the brush head housing to the interior of the thermal insulation box; a thermal insulation cover is attached to the base of the heating element, separating the heating element and the heated comb teeth from the brush head housing and the heating element.

[0005] Furthermore, the heating device includes a wire frame and a heating wire, with the heating wire being mounted on the wire frame which is installed inside the thermal insulation box.

[0006] Furthermore, the wire frame has a cross-shaped structure, with several clamps provided on the inner wall of the thermal insulation box. The wire frame is assembled and attached to the thermal insulation box by embedding its edges in the clamps.

[0007] In addition, a toothed groove structure is provided on the side edge of the wire frame, with the heating wire being wound around the wire frame and each toothed groove corresponding to one turn of the heating wire.

[0008] Furthermore, the thermal insulation cover is positioned on the brush head housing, with a pressure plate mounted on it. The heating element is attached to this pressure plate, and the underside of the heating comb teeth abuts the heating element.

[0009] Preferably, the heating comb teeth comprise a first aluminum comb tooth component and a second aluminum comb tooth part. The first aluminum comb tooth component is embedded in the second aluminum comb tooth part and abuts the heating device, while the second aluminum comb tooth part, together with the pressure plate, is attached to the heat insulation cover.

[0010] Furthermore, anti-burn comb teeth are provided around the perimeter of the heating comb teeth. These anti-burn comb teeth are made of a material with low thermal conductivity and are embedded in the brush head housing to enclose the heating element internally, together with the heat-insulating cover. The height of the heating comb teeth is less than that of the anti-burn comb teeth, causing the latter to protrude outwards.

[0011] Preferably, the teeth of the first and second aluminium comb tooth part are arranged within the same row at intervals with an adjacent tooth spacing of 0.5 to 5 mm.

[0012] Preferably, the bristles of the brush hair section protrude into the interior of the windbrush head, while lying flush against the brush head housing and their rear ends resting against the thermal insulation box.

[0013] Preferably, the heating temperature of the heating wire is 50-120 °C and the heating temperature of the heating device is 120-220 °C.

[0014] A smoothing wind brush comprising a handle assembly, a wind brush head, a PCBA and a fan, wherein the wind brush head is connected to the handle assembly and the fan is connected to the PCBA; the wind brush head uses the aforementioned wind brush head, wherein the heater and heating device inside the wind brush head are each connected to the PCBA and the thermal insulation box inside the wind brush head is connected to the fan.

[0015] This utility model comprises a two-layer insulation structure within the comb head to separate the heating comb teeth from the brush hair section. This prevents hot air from coming into direct contact with the heating comb teeth, thus reducing their aging. Positioning the heating wire within the windbrush head reduces the length of the handle assembly and simultaneously brings the heating element closer to the air outlet of the brush hair section. This minimizes heat loss and improves energy efficiency. Furthermore, the increased space within the windbrush head allows for a higher heating power output from the heating wire. Description of the illustrations Fig. is a schematic representation of the overall structure of the present utility model; Fig. is a schematic representation of the main body of the windbrush head of the present utility model. Fig. This is a schematic sectional view of the main body of the present utility model. Fig. is a schematic representation of the present utility model with part of the casing removed and after combing. Fig. This is a schematic representation of the internal structure of the present utility model.

[0016] In the illustration: 1 denotes the handle assembly; 21 denotes the brush bristle section; 22 denotes the heating comb teeth, consisting of 221 as the first aluminum comb tooth part and 222 as the second aluminum comb tooth part; 23 denotes the anti-burn comb teeth; 3 denotes the brush head housing; 4 denotes the PCBA; 5 denotes the fan; 6 denotes the thermal insulation box; 61 denotes the air outlet hole; 7 denotes the wire frame; 71 denotes the tooth groove structure; 72 denotes the heating wire; 8 denotes the thermal insulation cover; 9 denotes the heating element; and 10 denotes the pressure plate. Specific embodiment

[0017] With reference to the Fig. 1, Fig. 2, Fig. 3, Fig. 4 to Fig.In this embodiment, the smoothing wind brush comprises a handle assembly 1, a wind brush head, a PCBA 4, a fan 5, and a heating element. The wind brush head is connected to the handle assembly 1, while the fan 5 is connected to the PCBA 4 and both are mounted within the handle assembly 1 to generate an airflow. The wind brush head comprises a brush head housing 3, a brush bristle section 21, and heated comb teeth 22. The brush head housing 3 has an air outlet for expelling air during the combing process, on which the brush bristle section 21 is mounted. The underside of the heated comb teeth 22 contains a heating element 9 (e.g., a PTC thermistor), with both the heating element 9 and the heating element being connected to the PCBA 4. A thermal insulation box 6 is positioned within the brush head housing 3 and houses the heating element. The thermal insulation box 6 is connected to the fan 5. The thermal insulation box 6 has several air outlet holes 61.The air outlet on the brush head housing 3 is connected to the interior of the thermal insulation box 6 via the air outlet holes 61. The air generated by the fan 5 is drawn into the thermal insulation box 6, where it is heated by the heating mechanism to produce hot air. This hot air is then discharged to the outside via the air outlet holes 61 and the air outlet. A thermal insulation cover 8 is attached to the base of the heater 9. This thermal insulation cover insulates the heater 9 and the heating comb teeth 22 from the thermal insulation box 6 and the heating element, thus preventing hot air from being blown onto the heater 9 and the heating comb teeth 22.

[0018] The heating device comprises a wire frame 7 and a heating wire 72, the heating wire 72 being mounted on the wire frame 7. The wire frame 7 is installed inside the thermal insulation box 6 opposite the fan 5.

[0019] The wire frame 7 has a cross-shaped structure (with a cross-shaped cross-section). Several clamping brackets are provided on the inner wall of the thermal insulation box 6. The wire frame 7 is mounted and attached to the thermal insulation box 6 by embedding its edges in the clamping brackets.

[0020] A toothed groove structure 71 is provided on the side edge of the wire frame 7. The heating wire 72 is wound around the wire frame 7, with each toothed groove corresponding to one turn of the heating wire 72.

[0021] The thermal insulation cover 8 is attached to the brush head housing 3. A pressure plate 10 is installed on the thermal insulation cover 8, to which the heating device 9 is attached. The underside of the heating comb teeth 22 is in close contact with the heating device 9, thus enabling rapid heating of the heating comb teeth 22 by the heating device 9.

[0022] The heated comb teeth 22 consist of a first aluminum comb tooth element 221 and a second aluminum comb tooth part 222. The first aluminum comb tooth element 221 is embedded in the second aluminum comb tooth part 222 and is in contact with the heating device 9. The second aluminum comb tooth part 222 is attached to the heat insulation cover 8 together with the pressure plate 10.

[0023] The heating comb teeth 22 are surrounded by anti-burn comb teeth 23, which are made of thermally inert materials such as plastic. These anti-burn comb teeth 23 are embedded in the brush head housing 3 and, together with the heat-insulating cover 8, enclose the heating element 9 inside. The height of the heating comb teeth 22 is less than that of the anti-burn comb teeth 23, causing the anti-burn comb teeth 23 to protrude outwards relative to the heating comb teeth 22. This prevents the heating comb teeth 22 from coming into contact with the skin during use, thus avoiding burns.

[0024] Within each row, the teeth of the first aluminum comb element 221 and the second aluminum comb tooth part 222 are spaced apart, with the distances between adjacent teeth ranging from 0.5 to 5 millimeters. By arranging two or more rows, the hair can be guided through several comb teeth simultaneously, thereby increasing the heat transferred to the hair and improving the straightening effect.

[0025] Furthermore, the bristles of brush section 21 extend into the interior of the windbrush head while lying against the brush head housing 3, with their tips resting against the heat insulation box 6. This allows the bristles to be made of a soft material such as TPC, providing a more comfortable user experience compared to stiff bristles. Conventional combs with bristle attachments have stiffer bristles that can cause discomfort upon contact with the scalp. Of course, the bristles of the present utility model can also use conventional stiff bristles.

[0026] The heating wire operates at a temperature of 50 to 120 °C, for example 100 °C; the heating device operates at 120 to 220 °C, for example 180 °C, to improve the smoothing effect.

[0027] The above constitutes a detailed description of the present utility model. The foregoing description represents only one preferred embodiment of the present utility model. The scope of the present utility model is not thereby limited; all equivalent changes and modifications made within the scope of this application remain within the scope of the present utility model. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] CN 202320646335.5

[0002]

Claims

[1] Windbrush head, consisting of a brush head housing, a brush hair section, a heating device and heated comb teeth. The brush head housing has an air outlet to which the brush hair section is attached. The heated comb teeth are connected to a heating device. Characterized by A thermal insulation box is located within the brush head housing, containing the heating element. Several air outlet holes are provided on the thermal insulation box, with the air outlet on the brush head housing connecting to the interior of the thermal insulation box via these air outlet holes. A thermal insulation cover is provided on the base of the heating element, separating the heating element and the heating comb teeth from the thermal insulation box and the heating element. [2] Windbrush head according to claim 1, characterized by, that: the heating device comprises a wire frame and heating wires, wherein the heating wires are attached to the wire frame and the wire frame is installed inside the thermal insulation box. [3] Windbrush head according to claim 2, characterized by , that: the wire frame has a cross-shaped structure, with several clamping holders provided on the inner wall of the thermal insulation box; the wire frame is mounted and fastened to the thermal insulation box by embedding its edges in the clamping holders. [4] The windbrush head according to claim 1 or 3, characterized by , that: a toothed groove structure is provided on the side edge of the wire frame, wherein the heating wire is wound around the wire frame in such a way that each toothed groove corresponds to one turn of the heating wire. [5] Windbrush head according to claim 1, characterized by, that: the thermal insulation cover is attached to the brush head housing, with a pressure plate installed on the thermal insulation cover; the heating device is attached to the pressure plate and the underside of the heating comb teeth is in close contact with the heating device. [6] Windbrush head according to claim 5, characterized by , that: the heating comb teeth comprise a combination of a first aluminium comb tooth component and a second aluminium comb tooth part; the first aluminium comb tooth component is embedded in the second aluminium comb tooth part and adjoins the heating device; the second aluminium comb tooth part is attached to the heat insulation cover together with the pressure plate; the teeth of the first aluminium comb tooth part and the second aluminium comb tooth part within the same row are spaced apart, with the distance between adjacent teeth being 0.5 to 5 mm. [7] Windbrush head according to claim 1, characterized by, that: additional anti-burn comb teeth are provided around the circumference of the heating comb teeth. The anti-burn comb teeth are made of a poorly thermally conductive material and are embedded in the brush head housing to enclose the heating element internally, together with the heat-insulating cover; the height of the heating comb teeth is less than that of the anti-burn comb teeth, causing the latter to protrude outwards relative to the former. [8] Windbrush head according to claim 1, characterized by , that: the brush hair of the brush hair section extends into the interior of the wind brush head and is in close contact with the brush head housing, with the rear ends of the brush hair lying against the thermal insulation box. [9] Windbrush head according to claim 2, characterized by , that: the heating temperature of the heating wire is 50-120 °C and the heating temperature of the heating device is 120-220 °C. [10] Smoothing wind brush comprising a handle assembly, a wind brush head, a PCBA and a fan, wherein the wind brush head is connected to the handle assembly and the fan is connected to the PCBA, characterized by , that: the windbrush head uses the windbrush head defined in any one of claims 1 to 9; the heating device and the heating assembly inside the windbrush head are each connected to the PCBA; and the thermal insulation box inside the windbrush head is connected to the fan.

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