A straightening comb heating device

Abstract

The utility model discloses a straight comb heating device, including heating body, heat conduction subassembly, comb tooth cover and temperature sensor. The heating body is flat board, is equipped with heat insulation layer on the heating body, and heat conduction subassembly includes fixed plate and a plurality of heat conduction teeth, and the fixed plate is attached and set up on the heating body, and the fixed plate array is provided with a plurality of fixed holes, and the heat conduction tooth is the middle through tubular and is connected with the fixed hole, and the comb tooth cover is used for setting in the heat conduction tooth top, and the temperature sensor is set up in one of the heat conduction tooth. Therefore, the straight comb heating device of the utility model can shorten the initial heating time and can quickly back temperature, save the waiting time of user, and significantly improve the user experience.

Description

Technical Field

[0001] This utility model relates to the field of hair straightener technology, and in particular to a hair straightener heating device. Background Technology

[0002] Low-voltage rechargeable hair straighteners use a heating element to heat fixed comb teeth (mainly made of die-cast aluminum) to 140-230℃, using the high-temperature comb teeth to straighten the hair, quickly heating and styling it. This makes them a practical and efficient hair styling tool, especially suitable for people with fast-paced modern lifestyles. However, currently, most hair straighteners on the market use MCH ceramic plates and PI film heating elements, and the comb tooth structure relies on die-cast aluminum technology. Due to limitations in the die-cast aluminum molding process, the shape and weight of the comb teeth are difficult to optimize, and the comb teeth themselves have a certain weight. At the same time, MCH and PI film heating elements have low power density, and with a fixed power, heating heavier comb teeth takes a long time. For example, heating to 200 degrees Celsius takes 3-6 minutes from power-on to reaching the target temperature, which contradicts the design intent of portable rechargeable products and significantly reduces the user experience. Furthermore, during use, the comb teeth lose heat quickly, and the heating element, due to insufficient power density, has poor heat recovery. Some designs attempt to store heat by increasing the weight of the die-cast aluminum and the number of comb teeth, but due to insufficient heating power, the temperature recovery performance remains unsatisfactory. Continuous use tests show that the comb tooth temperature drops to 110~130℃, leading to a further extension of the initial heating time and seriously affecting the user's time efficiency. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a hair straightener heating device that can shorten the initial heating time and quickly reheat, saving users' waiting time and significantly improving the user experience.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A hair straightening comb heating device, including

[0006] The heating element is flat and has a thermally conductive insulating layer on it.

[0007] A heat-conducting component includes a fixing plate and multiple heat-conducting teeth. The fixing plate is attached to the heating element. The fixing plate array is provided with multiple fixing holes. The heat-conducting teeth are tubular and connected to the fixing holes.

[0008] A comb sleeve is used to be fitted onto the top of the heat-conducting teeth;

[0009] A temperature sensor is disposed within one of the heat-conducting teeth.

[0010] A hair straightener heating device according to an embodiment of this utility model has at least the following beneficial effects: This utility model achieves multiple performance improvements in the hair straightener heating device through the innovative combination of hollow tubular heat-conducting teeth and a flat heating element. The hollow heat-conducting tooth structure significantly reduces the overall weight, allowing the heating element to heat up quickly with lower energy consumption and shortening the user's waiting time. The design of the heat-conducting teeth directly contacting the hair reduces the heat conduction path, effectively reducing heat loss, while the hollow, tipless non-working area further optimizes thermal efficiency. The fixed plate array layout ensures uniform heat distribution, and the built-in temperature sensor achieves precise temperature control. The overall device has significantly improved in terms of portability, heating efficiency, and thermal stability, solving the technical problems of traditional die-cast aluminum comb teeth being heavy, slow to heat up, and having poor temperature recovery, providing users with a more efficient and convenient hair styling experience.

[0011] According to some embodiments of this utility model, the cross-section of the heat-conducting tooth is rectangular, and the two long sides of the heat-conducting tooth have outward curvature.

[0012] The advantages are: the rectangular cross-section combined with the heat-conducting teeth design on both sides of the curved edge forms an optimized heat conduction path while maintaining structural strength. This ensures sufficient contact area with the hair and reduces hair pulling damage through the curved surface, improving comfort and styling effect.

[0013] According to some embodiments of the present invention, the comb sleeve includes a sleeve frame, a sleeve head, and a connecting post. The sleeve frame has a sleeve hole for accommodating the passage of the heat-conducting teeth and is sleeved with the fixing plate. The sleeve head is sleeved on the top of the heat-conducting teeth. The connecting post is disposed on both short sides of the heat-conducting teeth for connecting the sleeve head and the sleeve frame.

[0014] The advantages are: the one-piece molded comb tooth structure ensures overall stability through the rigid connection of the sleeve frame, sleeve head, and connecting posts, avoiding the loosening risk of a split design. The reasonable layout of the connecting posts, while maintaining structural strength, still provides appropriate elastic cushioning, reducing the impact of external forces on the heat-conducting teeth, improving durability, and facilitating overall cleaning and maintenance.

[0015] According to some embodiments of the present invention, the outer periphery of the sleeve is also provided with plastic auxiliary teeth.

[0016] The benefits are that the addition of plastic auxiliary teeth creates a dual protective structure, preventing burns from direct contact between the high-temperature components and the scalp, and also pre-desiccates the hair with the auxiliary comb teeth, improving the efficiency and safety of the high-temperature heat-conducting teeth.

[0017] According to some embodiments of the present invention, a pressure cap is also included, which is disposed on the bottom surface of the heating element for pressing and fixing the heating element to the fixing plate.

[0018] The advantages are: the pressure cap structure ensures a tight fit between the heating element and the fixing plate through mechanical pressing, eliminating the thermal resistance layer of traditional adhesive methods, establishing a more efficient heat conduction channel, and simplifying the assembly process and reducing production costs.

[0019] According to some embodiments of this utility model, the pressure cover is provided with a first through hole, and the heating element is provided with a second through hole. The first through hole and the second through hole are both corresponding to one of the fixing holes. The first through hole and the second through hole are used to accommodate the temperature sensor to pass through and be installed in the heat-conducting teeth.

[0020] The advantages are: the through-hole alignment design enables precise implantation of the temperature sensor, allowing the temperature measuring point to directly contact the high-temperature area inside the heat-conducting tooth, obtaining more realistic temperature feedback, and improving the response speed and control accuracy of the temperature control system.

[0021] According to some embodiments of this utility model, the heating element end is provided with a positive electrode connector and a negative electrode connector extending out of the pressure cover.

[0022] The advantages are: the exposed electrode connector design facilitates quick connection of the power module, shortens the heat conduction path, and the protective wrapping of the connector by the pressure cap effectively prevents electrical connection loosening during transportation and use.

[0023] According to some embodiments of this utility model, the heating element is made of high-temperature resistant metal.

[0024] The advantage is that this heating element is made of high-temperature resistant metals, such as 430 stainless steel, 444 stainless steel, and titanium. In heating applications, its power density can reach over 50W / cm², while ordinary MCH ceramic sheets, PI films, and PTC processes typically deliver below 10W. Furthermore, these materials exhibit high-temperature power decay, meaning their power decreases as the temperature rises, resulting in a significant reduction in heating efficiency. However, the power decay of this metal heating element is minimal and negligible.

[0025] According to some embodiments of this utility model, the heating element is provided with a hollowed-out groove.

[0026] The benefits are that the application of the hollowed-out groove structure on the heating element not only reduces the overall weight, but also forms an optimized heat flow channel, avoids local overheating, and enhances the structural flexibility, thereby improving the product's drop resistance.

[0027] According to some embodiments of this utility model, the comb sleeve is made of high-temperature resistant plastic.

[0028] The benefits are: the high-temperature resistant plastic comb teeth cover, while ensuring heat insulation and safety, adapts to different hair volumes through the elastic deformation characteristics of the material, reducing hair pulling damage, while the surface texture design enhances the anti-slip effect.

[0029] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0032] Figure 2 for Figure 1 A cross-sectional schematic diagram;

[0033] Figure 3 for Figure 1 A schematic diagram of the decomposition process;

[0034] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0035] Reference numerals: heating element 100, fixing plate 110, heat-conducting teeth 120, fixing hole 130, comb sleeve 140, temperature sensor 150, sleeve 160, sleeve head 170, connecting post 180, plastic auxiliary teeth 190, pressure cap 200, first through hole 210, second through hole 220, positive terminal connector 230, negative terminal connector 240, hollow groove 250, sleeve hole 260. Detailed Implementation

[0036] The embodiments of this utility model 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 are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] The following is for reference. Figures 1-4 A hair straightener heating device is described in detail with reference to a specific embodiment. It is to be understood that the following description is merely illustrative and not intended to limit the scope of the invention.

[0041] like Figures 1-3 As shown, a hair straightener heating device includes a heating element 100, a heat-conducting component, a comb tooth sleeve 140, and a temperature sensor 150.

[0042] The heating element 100 is flat and has a thermally conductive insulating layer. The thermally conductive assembly includes a fixing plate 110 and multiple thermally conductive teeth 120. The fixing plate 110 is fitted onto the heating element 100 and has multiple fixing holes 130 arranged in an array. The thermally conductive teeth 120 are tubular and connected to the fixing holes 130. A comb tooth sleeve 140 is used to fit over the top of the thermally conductive teeth 120. A temperature sensor 150 is disposed inside one of the thermally conductive teeth 120. This invention achieves multiple performance improvements in the straightening comb heating device through the innovative combination of hollow tubular thermally conductive teeth 120 and flat heating element 100. The hollow thermally conductive teeth 120 structure significantly reduces the overall weight, allowing the heating element 100 to heat up quickly with lower energy consumption and shortening the user's waiting time. The design of the thermally conductive teeth 120 directly contacting the hair on the side reduces the heat conduction path, effectively reducing heat loss. At the same time, the hollow, tipless non-working area further optimizes thermal efficiency. The fixed plate 110 array layout ensures even heat distribution, and the built-in temperature sensor 150 enables precise temperature control. The overall device has significant improvements in portability, heating efficiency, and thermal stability, solving the technical problems of traditional die-cast aluminum combs being heavy, slow to heat up, and having poor temperature recovery, providing users with a more efficient and convenient hair styling experience.

[0043] Specifically, such as Figure 3 The heat-conducting tooth 120 shown has a rectangular cross-section, with outward curvature on both long sides. The rectangular cross-section combined with the curved sides of the heat-conducting tooth 120 creates an optimized heat conduction path while maintaining structural strength. This ensures sufficient contact area with the hair, while the curved surface reduces hair pulling damage, improving comfort and styling results.

[0044] like Figure 2 and Figure 4 As shown, the comb sleeve 140 includes a sleeve frame 160, a sleeve head 170, and connecting posts 180. The sleeve frame 160 has a sleeve hole 260 for accommodating the heat-conducting teeth 120 and is sleeved with a fixing plate 110. The sleeve head 170 is sleeved on the top of the heat-conducting teeth 120. The connecting posts 180 are located on both short sides of the heat-conducting teeth 120 to connect the sleeve head 170 and the sleeve frame 160. The one-piece molded comb sleeve 140 structure ensures overall stability and avoids the loosening risk of a split design through the rigid connection of the sleeve frame 160, the sleeve head 170, and the connecting posts 180. The reasonable layout of the connecting posts 180 maintains structural strength while providing moderate elastic cushioning, reducing the impact of external forces on the heat-conducting teeth 120, improving durability, and facilitating overall cleaning and maintenance. In addition, the outer periphery of the sleeve frame 160 is also provided with plastic auxiliary teeth 190. The addition of plastic auxiliary teeth 190 forms a dual protection structure, preventing burns from direct contact between high-temperature components and the scalp, and also pre-desiccates the hair with auxiliary comb teeth, improving the working efficiency and safety of the high-temperature heat-conducting teeth 120.

[0045] like Figure 2 and Figure 3 As shown, it also includes a pressure cap 200, which is disposed on the bottom surface of the heating element 100 to press and fix the heating element 100 onto the fixing plate 110. The pressure cap 200 structure ensures a tight fit between the heating element 100 and the fixing plate 110 through mechanical pressing, eliminating the thermal resistance layer of traditional adhesive methods, establishing a more efficient heat conduction channel, and simplifying the assembly process and reducing production costs. Specifically, the pressure cap 200 has a first through hole 210, and the heating element 100 has a second through hole 220. Both the first through hole 210 and the second through hole 220 correspond to one of the fixing holes 130. The first through hole 210 and the second through hole 220 are used to accommodate the temperature sensor 150 and install it inside the heat-conducting teeth 120. The through hole alignment design enables the precise implantation of the temperature sensor 150, allowing the temperature measuring point to directly contact the high-temperature area inside the heat-conducting teeth 120, obtaining more accurate temperature feedback, and improving the response speed and control accuracy of the temperature control system. In addition, the heating element 100 is provided with a positive terminal 230 and a negative terminal 240 extending out of the pressure cap 200. The exposed electrode terminal design facilitates quick connection to the power module and shortens the heat conduction path. At the same time, the protective wrapping of the pressure cap 200 effectively prevents loosening of electrical connections during transportation and use.

[0046] It should be noted that the heating element 100 is made of high-temperature resistant metal. This heating element 100 is made of high-temperature resistant metals such as 430 stainless steel, 444 stainless steel, and titanium. In heating applications, its power density can reach over 50W / cm², while ordinary MCH ceramic sheets, PI films, and PTC processes are below 10W, and they exhibit high-temperature power decay characteristics; that is, the higher the temperature, the lower the power of the heating element 100, resulting in a significant reduction in heating power. However, the power decay of this metal heating element 100 is minimal and can be disregarded. Figure 3 As shown, the heating element 100 is provided with a hollowed-out groove 250. The application of the hollowed-out groove 250 structure on the heating element 100 not only reduces the overall weight, but also forms an optimized heat flow channel, avoids local overheating, and enhances the structural flexibility, thereby improving the product's drop resistance.

[0047] It is worth mentioning that the comb sleeve 140 is made of high-temperature resistant plastics such as PA46, PA66, PPS, PEEK, PI, PTFE, LCPA, and PAI, which can withstand high-temperature environments and prevent deformation or damage due to prolonged heating, ensuring the durability and stability of the comb sleeve 140. The heat-conducting teeth 120 are preferably made of aluminum and undergo surface oxidation treatment, including anodizing, micro-arc oxidation, and plasma spraying. These treatments enhance the corrosion resistance and wear resistance of the heat-conducting teeth 120, while improving thermal conductivity and ensuring uniform heat distribution. The temperature sensor 150 is preferably a negative-temperature NTC. NTCs have high sensitivity and fast response characteristics, enabling accurate detection of temperature changes and ensuring the accuracy and safety of temperature control for the heating component.

[0048] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A hair straightening comb heating device, characterized in that, include: The heating element (100) is flat and has a thermally conductive insulating layer on it; The heat-conducting component includes a fixing plate (110) and multiple heat-conducting teeth (120). The fixing plate (110) is attached to the heating element (100). The fixing plate (110) is arrayed with multiple fixing holes (130). The heat-conducting teeth (120) are tubular and connected to the fixing holes (130). A comb sleeve (140) is used to be fitted onto the top of the heat-conducting teeth (120); A temperature sensor (150) is disposed within one of the heat-conducting teeth (120).

2. The hair straightening comb heating device according to claim 1, characterized in that, The heat-conducting tooth (120) has a rectangular cross-section, and the long sides of the heat-conducting tooth (120) have outward curvature.

3. The hair straightening comb heating device according to claim 2, characterized in that, The comb sleeve (140) includes a sleeve frame (160), a sleeve head (170), and a connecting post (180). The sleeve frame (160) has a sleeve hole (260) for accommodating the passage of the heat-conducting teeth (120) and is sleeved with the fixing plate (110). The sleeve head (170) is sleeved on the top of the heat-conducting teeth (120). The connecting post (180) is provided on both short sides of the heat-conducting teeth (120) for connecting the sleeve head (170) and the sleeve frame (160).

4. A hair straightening comb heating device according to claim 3, characterized in that, The outer periphery of the sleeve (160) is also provided with plastic auxiliary teeth (190).

5. A hair straightening comb heating device according to claim 1, characterized in that, It also includes a pressure cap (200), which is disposed on the bottom surface of the heating element (100) for pressing and fixing the heating element (100) onto the fixing plate (110).

6. A hair straightening comb heating device according to claim 5, characterized in that, The pressure cap (200) is provided with a first through hole (210), and the heating element (100) is provided with a second through hole (220). The first through hole (210) and the second through hole (220) are both corresponding to one of the fixing holes (130). The first through hole (210) and the second through hole (220) are used to accommodate the temperature sensor (150) to pass through and be installed in the heat-conducting tooth (120).

7. A hair straightening comb heating device according to claim 5, characterized in that, The heating element (100) is provided with a positive terminal (230) and a negative terminal (240) extending out of the pressure cap (200).

8. A hair straightening comb heating device according to claim 1, characterized in that, The heating element (100) is made of high-temperature resistant metal.

9. A hair straightening comb heating device according to claim 1, characterized in that, The heating element (100) is provided with a hollowed-out groove (250).

10. A hair straightening comb heating device according to claim 1, characterized in that, The comb sleeve (140) is made of high-temperature resistant plastic.

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