A heating comb

Abstract

The present invention relates to a heating comb. By adopting a non-direct contact assembly structure between the heating component and the comb body and the housing, the heat loss of the heating component and the heat transfer to the housing through the heating component and the comb cover are effectively reduced, thereby lowering the temperature of the housing handle. Infrared heat radiation function is added, and the ambient temperature of the infrared heat radiation light source is reduced by a heat insulation component.

Description

Technical Field

[0001] The present invention relates to the technical field of hair styling devices, in particular to a heating comb. Background Art

[0002] Current heating combs commonly suffer from the following technical issues: First, due to structural issues with the heating element, some heat is transferred to the housing, causing it to heat up, affecting the user's grip. In severe cases, the housing may become too hot, making it impossible for the user to hold the comb. Furthermore, the comb teeth lose some heat, reducing thermal efficiency and causing the comb teeth to heat up more slowly, requiring the user to wait longer. Second, heating combs have a limited function. Third, the heating element conducts heat through direct contact with the comb teeth, but current heating elements are not properly matched to the comb teeth (in terms of size). This results in a large temperature difference between the comb teeth over a certain period of time (those closer to the heating element heat up faster, those further away from the heating element heat up slower). This temperature difference decreases over time, but does not disappear. Fourth, the comb teeth and the comb cover are in direct contact during assembly, allowing heat from the comb teeth to be directly transferred to the comb cover. Although the comb cover is generally made of insulating material, a small amount of heat can still be transferred to the comb cover through direct conduction.

[0003] Based on the above-mentioned technical problems, the Chinese utility model patent with announcement number CN211323412U in the prior art discloses a simple and efficient hair straightening comb, which includes a handle body, the heating element assembly is snapped into the snap position, the protective assembly is sleeved on the top of the outer wall of the heating element assembly, and the main control board is embedded and installed at the bottom of the inner wall of one end of the bottom cover. The left comb teeth and the right comb teeth each contact half of the heating area of ​​the heating plate. The comb teeth adopt a left-right interlaced interlocking structure and a parallel design to achieve simultaneous contact with the heating plate so that the comb teeth are evenly heated, so that the hair is evenly heated and the styling effect is improved. In addition, the main control board cooperates with the heating plate and the temperature sensor. The main control board makes corresponding adjustments based on the detection signal transmitted by the temperature sensor and feeds back to the heating plate to realize the temperature control function of the comb group, which has strong automation. At the same time, the suspended design of the heat insulation protective cover is used in conjunction with the comb group to prevent heat loss from the comb group and protect the scalp and skin from contact with the comb group, thereby achieving constant temperature and heat insulation effects. Although the above-mentioned prior art directly molds the heat-insulating protective cover on the shell so as to achieve direct contact with the comb tooth part and thus prevent the heat of the comb tooth group from being directly transferred to the heat-insulating protective cover, in fact, the distance between the heat-insulating protective cover and the comb teeth is very close, so the heat of the comb teeth can be easily transferred to the heat-insulating protective cover through the air, and the heat-insulating protective cover is directly molded on the shell, so it is also easy to be transferred to the shell, and the comb tooth part is directly fixed to the shell through the supporting feet extending from its two ends, that is, the comb tooth part is in direct contact with the shell, so it is impossible to avoid the heat of the comb tooth part being transferred to the shell through the supporting feet; and the pressure plate is not made of heat-insulating material, and it is impossible to avoid the heat being transferred to the shell through the pressure plate, thereby causing the shell to heat up.

[0004] Another example is the Chinese utility model patent with the announcement number CN208176287U in the prior art, which discloses a heating comb with adjustable tooth pitch, including an upper comb shell, a lower comb shell, a heating comb tooth assembly, a heat insulation assembly, a pitch-adjustable movable tooth sleeve, a pitch-adjusting mechanism and a control unit. The upper comb shell and the lower comb shell form a heating comb tooth assembly installation cavity at the front end, and a handle end at the rear end, in which a pitch-adjusting mechanism and a control unit are provided. The heating comb tooth assembly includes heat-conducting aluminum teeth and an MCH heating plate. The heat-conducting aluminum teeth include three rows of aluminum teeth. The heat insulation assembly consists of an overhead heat insulation frame sleeved below the heat-conducting aluminum teeth, a first heat insulation plate arranged above the MCH heating plate, a heat insulation pressure cover arranged above the first heat insulation plate, and a second heat insulation plate arranged on the heat insulation pressure cover. The pitch-adjustable movable tooth sleeve is arranged below the heat-conducting aluminum teeth, and the rear end of the pitch-adjustable movable tooth sleeve is arranged on the pitch-adjusting push-pull seat. A sleeve tooth for sleeve-fitting each aluminum tooth is provided below the pitch-adjustable movable tooth sleeve. The MCH heating element is connected to a control unit, which consists of a control panel, control buttons, and a power cord. This existing technology uses an overhead thermal insulation frame to insulate the heat-conducting aluminum teeth and the pitch-adjustable movable gear sleeve. Furthermore, a thermal insulation sheet and a heat-insulating gland secure the heating element, heat-conducting aluminum teeth, and the pitch-adjustable movable gear sleeve to the housing. However, the pitch-adjustable movable gear sleeve and the housing are still in direct contact, which cannot prevent direct heat transfer. The infrared light has a small irradiation range and a weak effect. The heat-conducting aluminum teeth lack protection, making them prone to burns. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a heating comb in response to at least one of the above-mentioned shortcomings of the prior art, which can at least effectively reduce the heat transfer from the heating component and the comb body component to the shell.

[0006] An embodiment of the present invention provides a heating comb, which at least includes: a shell having an opening; a comb body assembly, which at least includes a comb tooth portion and a comb cover, the comb body assembly is installed and fixed inside the shell through a heat insulation assembly, and the comb tooth portion and the comb cover are partially exposed to the shell through the opening, a non-contact gap or a partially contact gap is formed between the outer edge of the comb cover and the inner wall of the opening, and the outer edge of the comb cover has a hollow structure connected to the gap; a heating assembly is assembled between the comb body assembly and the heat insulation assembly.

[0007] In some embodiments, the heat-generating assembly includes a heat-generating body and a heat-transfer frame. The heat-generating body is placed in the heat-transfer frame, and the heat-transfer frame is in heat-transfer contact with the comb teeth.

[0008] In some embodiments, the heat transfer frame has an upper heat transfer plate and a lower heat transfer plate. The upper heat transfer plate is in heat transfer contact with the comb teeth portion. A cavity for mounting a heating element is provided between the lower heat transfer plate and the upper heat transfer plate.

[0009] In some embodiments, the comb teeth portion and the comb cover are respectively fixed on the heat insulation component and are non-contact with each other.

[0010] In some embodiments, the thermal insulation assembly is assembled and fixed to the housing via at least two mounting feet.

[0011] In some embodiments, the mounting feet are located at both ends of the thermal insulation assembly.

[0012] Some of the embodiments further include a light source assembly built into the housing, and light from the light source assembly is emitted through the hollow structure.

[0013] In some embodiments, the light source assembly includes an infrared thermal radiation light source.

[0014] In some embodiments, a light guide cover is provided to match the light source assembly, and the light guide cover is used to guide the light of the light source assembly to be emitted from the hollow structure.

[0015] In some embodiments, the light guide cover is disposed on the thermal insulation component.

[0016] Compared to related technologies, the heating comb provided by the present invention utilizes a structure where the heating element and comb body are assembled without direct contact with the housing. This effectively reduces heat loss from the heating element and reduces heat transfer to the housing through the heating element and comb cover, thereby lowering the temperature of the housing handle. Furthermore, the comb also incorporates an infrared heat radiation function, and the thermal insulation component reduces the ambient temperature of the infrared heat radiation light source.

[0017] The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below so that other features, objects, and advantages of the invention are more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 2 is an overall structural diagram of a heating comb according to an embodiment of the present invention.

[0020] Figure 2 2 is a diagram showing the exploded structure of a heating comb according to an embodiment of the present invention.

[0021] Figure 3 It is a partial structural diagram of a heating comb according to an embodiment of the present invention.

[0022] Figure 4 2 is a structural diagram of a thermal insulation assembly according to an embodiment of the present invention.

[0023] Figure 5 2 is a structural diagram of a combing set according to an embodiment of the present invention.

[0024] Figure 62 is a structural diagram of the comb teeth portion of an embodiment of the present invention.

[0025] Figure 7 2 is a structural diagram of a heat transfer frame according to an embodiment of the present invention.

[0026] In the figure, 1. shell; 2. comb body assembly; 3. heat insulation assembly; 4. heating assembly; 5. negative ion generator; 6. electronic control assembly; 7. light source assembly; 8. upper shell; 9. lower shell; 10. opening; 11. limit hole; 12. threaded hole; 13. mounting foot; 14. support column; 15. comb sleeve mounting hole; 16. comb tooth mounting hole; 17. inner wall structure; 18. inclined chamfer; 19. light guide cover; 20. comb tooth part; 21. comb sleeve; 22. positioning column; 23. gap; 24. hollow structure; 25. comb sleeve mounting column; 26. comb tooth mounting column; 27. heat transfer frame; 28. upper heat transfer plate; 29. ​​lower heat transfer plate; 30. light source circuit board; 31. infrared thermal radiation light source; 32. electronic control PCB board; 33. control button; 34. power connector; 35. outer edge. DETAILED DESCRIPTION

[0027] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is described and illustrated below with reference to the accompanying drawings and embodiments.

[0028] like Figure 1-2 As shown, a heating comb provided by an embodiment of the present invention includes a shell 1, a comb body assembly 2, a heat insulation assembly 3, a heating assembly 4, a negative ion generator 5, an electronic control assembly 6, and an optional light source assembly 7.

[0029] like Figure 2 The figure shows the structure of the shell of an embodiment of the present invention. The shell 1 is composed of an upper shell 8 and a lower shell 9. The front parts of the upper shell 8 and the lower shell 9 are functional parts, the middle parts are control parts, and the rear parts are hand-held parts. The functional parts are used to install the comb body assembly 2, the heat insulation assembly 3, the heating assembly 4, the negative ion generator 5 and the light source assembly 7. The control part and the hand-held part are used to install the electronic control assembly 6. An opening 10 is provided in the upper shell 8, two limiting holes 11 are provided at the front outer end of the lower shell 9, and a threaded hole 12 is provided at the front inner end of the lower shell 9. The heat insulation assembly 3 is inserted into the two limiting holes 11 through two mounting feet 13 at one end and is threadedly locked on the threaded hole 12 through a mounting foot 13 at the other end. Two support columns 14 are provided on the left and right sides of the front of the lower shell 9 respectively. The support columns 14 are used to support and install the light source assembly 7. The mounting feet 13 of the heat insulation assembly 3 are fixed on the lower shell 9 to suspend the heat insulation assembly 3 in the air. The heat insulation assembly 3 itself has a heat insulation function and only the mounting feet 13 are used to reduce the area of ​​direct contact.

[0030] like Figure 2-4The figure shows the structure of the heat insulation component 3 of the embodiment of the present invention. The heat insulation component 3 is a groove-shaped heat insulation base. The outer side of one end of the heat insulation base has two mounting feet 13 and a comb sleeve mounting hole 15, and the outer side of the other end has a mounting foot 13 and two comb sleeve mounting holes 15. Two comb tooth mounting holes 16 are respectively provided on the inner side of the two ends of the heat insulation base. The heat insulation base is suspended and fixed on the lower shell 9 by the three mounting feet 13, and the heat insulation base and the upper shell 8 are non-contacting, which can effectively reduce the transfer of heat to the shell. In addition, the heat insulation base is assembled with the fixed comb sleeve 21 through the comb sleeve mounting hole 15 on the outside, which also avoids direct contact between the comb sleeve and the shell, further reducing the transfer of heat from the comb sleeve to the shell. In addition, the heat insulation base is assembled with the fixed comb tooth part 20 through the comb tooth mounting hole 16 on the inside, thereby avoiding direct contact between the comb teeth and the shell and the comb sleeve, further reducing the transfer of heat from the comb teeth to the shell. (Of course, heat transfer from the air cannot be blocked; it can only be achieved by reducing contact heat transfer other than air heat transfer.) An inner wall structure 17 with interspaced concave and convex portions is provided on the inner walls of both sides of the insulation base. This not only strengthens the insulation base but also serves as a support for the heat transfer frame 27. The interspaced concave and convex inner wall structure 17 minimizes the contact area between the heat transfer frame 27 and the insulation base, and the bottom surface of the heat transfer frame 27 is positioned on the inclined chamfer 18 of the inner wall. Light guides 19, which are wide at the top and narrow at the bottom, are provided on the outer walls on both sides of the insulation base. These light guides 19 provide light path guidance for the light source assembly 7. Forming these light guides 19 on the insulation base reduces the number of accessories and forms an insulated light guide 19. Under the protection of the light guides 19, the light source assembly 7 is protected from excessive heat interference, thereby extending its service life. The number of hollow structures corresponds one-to-one to the number of light sources.

[0031] like Figure 2 、 3, 5, and 6 show the structure of the comb assembly 2 according to an embodiment of the present invention. The comb assembly 2 includes a comb tooth portion 20 and a comb cover 21. The comb tooth portion 20 is composed of an integrally molded heat-conducting comb tooth group. The heat-conducting comb tooth group has heat-conducting comb teeth that are wider at the bottom and pointed at the top, with a certain gap between adjacent heat-conducting comb teeth. Positioning posts 22 are provided on the bottom surface of the comb tooth portion 20. The positioning posts 22 are used to be inserted into the heat transfer frame 27 to fix the position between the heat transfer frame 27. The comb cover 21 is composed of an integrally injection-molded heat-insulating comb tooth group. The heat-insulating comb tooth group has heat-insulating comb teeth that are wider at the bottom and pointed at the top, with a certain gap between adjacent heat-insulating comb teeth. The heat-insulating comb teeth at both ends are solid structures, while the heat-insulating comb teeth in the middle between the two ends are hollow structures. This helps to better transfer heat between adjacent heat-conducting comb teeth without being hindered by the heat-insulating comb teeth, thereby improving heat transfer efficiency. The outer edges 35 on both sides of the outer periphery of the comb sleeve 21 and the inner sidewall of the opening 10 have a gap 23 at a certain distance and are in a non-contact position with each other, so that the comb sleeve 21 does not directly contact the upper shell 8, which can effectively reduce the transfer of heat. Of course, in other embodiments, a partial contact structure can be used to still achieve the purpose of reducing heat transfer. Although partial contact transfers more heat than non-contact, the difference may not be easily perceived in certain applications or by users. Therefore, partial contact can still achieve the purpose of reducing heat transfer and also falls within the scope of protection of the present invention. In order to further reduce the transfer of heat, multiple hollow structures 24 are provided on the outer edge 35 along its extension direction. These multiple hollow structures 24 have two functions. The first is to reduce the effective heat dissipation area of ​​the outer edge 35 close to the inner sidewall of the opening 10. The second is to serve as the light outlet of the light source assembly 7. Multiple light outlets can improve the illumination range and effect of thermal radiation. The comb sleeve mounting posts 25 on the bottom surface of the comb sleeve 21 are screwed to the comb sleeve mounting holes 15 on the heat-insulating base, and the comb tooth mounting posts 26 on the bottom surface of the comb tooth portion 20 are screwed to the comb tooth mounting holes 16 on the heat-insulating base. The upper portions of the comb tooth portion 20 and comb sleeve 21 are exposed through the opening 10 of the upper housing 8.

[0032] like Figure 2 、 7 As shown in FIG. 4 , the structure of the heating component 4 of an embodiment of the present invention is shown. The heating component 4 includes a heating element using PTC and a heat transfer frame 27. The heating element is placed in the heat transfer frame 27. The heat transfer frame 27 has an inner heat transfer plate 28 and a lower heat transfer plate 29 integrally formed. The inner heat transfer plate 28 and the lower heat transfer plate 29 form a cavity enclosed by the side heat transfer plates on both sides. The heating element is placed in the cavity. The inner heat transfer plate 28 is longer than the lower heat transfer plate 29. The extended length of the heat transfer plate 28 covers the entire bottom surface of the heat-conducting comb teeth, so that the coverage area of ​​the secondary heat transfer can cover the entire heat-conducting comb teeth. The temperature difference of the heat-conducting comb teeth can be reduced through secondary heat transfer. The lower heat transfer plate 29 is placed in suspension against the inclined chamfer 18 of the inner side wall of the insulation base.

[0033] like Figure 2 Figure 1 illustrates the structure of a light source assembly 7 according to an embodiment of the present invention. Light source assembly 7 includes a light source circuit board 30 and an infrared heat radiation source 31 connected to the light source circuit board 30. Light source circuit board 30 is secured to support column 14 of lower housing 9 via screws. Light from infrared heat radiation source 31 is emitted through hollow structure 24 with the aid of light guide hood 19 to achieve radiation.

[0034] like Figure 2 As shown, the electronic control component 6 of the embodiment of the present invention includes an electronic control PCB board 32, a control button 33 and a power connector 34, and the negative ion generator 5 is inserted on the rear side of the comb body component 2, and emits negative ions through the hole on the upper shell 8 toward the comb body component 2.

[0035] Those skilled in the art should understand that the various technical features of the above-described embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the various technical features in the above-described 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.

[0036] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A heating comb, characterized in that: At least: The housing (1) has an opening (10); A comb body assembly (2) comprising at least a comb tooth portion (20) and a comb cover (21); the comb body assembly (2) is fixed inside the housing (1) via a heat insulation assembly (3); the comb tooth portion (20) and the comb cover (21) are partially exposed to the housing (1) through the opening (10); a non-contact gap (23) or a partially contact gap (23) is formed between the outer edge (35) of the comb cover (21) and the inner wall of the opening (10); and the outer edge (35) of the comb cover (21) has a hollow structure (24) connected to the gap (23); The heating component (4) is assembled between the comb body component (2) and the heat insulation component (3).

2. A heating comb according to claim 1, characterized in that: The heating component (4) comprises a heating element and a heat transfer frame (27), wherein the heating element is placed in the heat transfer frame (27), and the heat transfer frame (27) is in heat transfer contact with the comb tooth portion (20).

3. A heating comb according to claim 2, characterized in that: The heat transfer frame (27) comprises an upper heat transfer plate (28) and a lower heat transfer plate (29), wherein the upper heat transfer plate (28) is in heat transfer contact with the comb tooth portion (20), and a cavity for mounting the heating element is provided between the lower heat transfer plate (29) and the upper heat transfer plate (28).

4. A heating comb according to claim 1, characterized in that: The comb tooth portion (20) and the comb sleeve (21) are respectively fixed on the heat insulation component and are non-contact with each other.

5. The heating comb according to claim 1, characterized in that: The heat insulation assembly (3) is assembled and fixed to the housing (1) via at least two mounting feet (13).

6. A heating comb according to claim 5, characterized in that: The mounting feet (13) are respectively located at both ends of the thermal insulation component (3).

7. The heating comb according to claim 1, characterized in that: It also includes a light source assembly (7) built into the housing (1), and light from the light source assembly (7) is emitted through the hollow structure (24).

8. A heating comb according to claim 7, characterized in that: The light source assembly (7) has an infrared heat radiation light source (31).

9. A heating comb according to claim 7 or 8, characterized in that: A light guide cover (19) is provided that matches the light source assembly (7), and the light guide cover (19) is used to guide the light of the light source assembly (7) to be emitted from the hollow structure (24).

10. The heating comb according to claim 9, characterized in that: The light guide cover (19) is arranged on the heat insulation component (3).

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