WO2024098439A1

WO2024098439A1 - Heating comb

Info

Publication number: WO2024098439A1
Application number: PCT/CN2022/131655
Authority: WO
Inventors: 黄咏娴
Original assignee: 东莞港电电器制品有限公司
Priority date: 2022-11-11
Filing date: 2022-11-14
Publication date: 2024-05-16
Also published as: CN115606923A

Abstract

A heating comb. By means of using a non-direct contact assembly structure between a heating assembly (4) and a housing (1) and between a comb body assembly (2) and the housing (1), the loss of heat of the heating assembly (4) is effectively reduced, and the heat transferred to the housing (1) via the heating assembly (4) and a comb sleeve (21) is also reduced, thus lowering the temperature of a handle of the housing (1). An infrared heat radiation function is added, and the ambient temperature of an infrared heat radiation light source is lowered by means of a heat insulating assembly (3).

Description

A heating comb

Technical Field

The invention relates to the technical field of hair styling devices, in particular to a heating comb.

Background technique

The current heating combs generally have the following technical problems: First, due to the problem of the assembly structure, part of the heat of the heating component is transferred to the shell, causing the shell to heat up, affecting the user's hand-holding feeling. In severe cases, the shell may be too hot and the user cannot hold it, and the comb teeth will lose part of the heat, which reduces the thermal efficiency, making the comb teeth heat up slowly, and the user needs to wait for a long time. Second, the heating comb has a single function. Third, the heating component conducts heat by direct contact with the comb teeth, but the current heating component is not matched with the comb teeth (size), that is, it will cause a large temperature difference in the comb teeth within a certain period of time (the temperature rises quickly near the heating component and the temperature rises slowly away from the heating component). As time goes by, the temperature difference will decrease, but it will not disappear. Fourth, in the comb tooth component, the comb tooth part and the comb cover are in direct contact during assembly, causing the heat of the comb tooth part to be directly transferred to the comb cover. Although the comb cover is generally made of heat-insulating material, a small amount of heat will still be transferred to the comb cover by direct conduction.

Based on the above-mentioned technical problems, a Chinese invention patent with publication number CN211323412U in the prior art discloses a simple and efficient hair straightening comb, comprising a handle body, the heating element assembly is clamped in the clamping position, the protective assembly is sleeved on the top of the outer wall of the heating element assembly, the main control board is embedded and installed at the bottom of the inner wall at 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, and the main control board cooperates with the heating plate and the temperature sensor, and the main control board makes corresponding adjustments and feeds back to the heating plate through the detection signal transmitted by the temperature sensor to realize the temperature control function of the comb tooth group, and the automation is strong. At the same time, the suspended design of the heat insulation protective cover is used in conjunction with the comb tooth group, which can avoid heat loss of the comb tooth group and protect the scalp and skin from contacting the comb tooth group, so as to achieve 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 by 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 prevent the heat of the comb tooth part from being transferred to the shell through the supporting feet; and the pressure plate is not made of heat-insulating material, so it is impossible to prevent the heat from being transferred to the shell through the pressure plate, thereby causing the shell to heat up.

Another example is the Chinese invention patent with publication 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 arranged. The heating comb tooth assembly includes heat-conducting aluminum teeth and an MCH heating sheet, and the heat-conducting aluminum teeth include three rows of aluminum teeth. The heat insulation assembly is composed of an overhead heat insulation frame sleeved under the heat-conducting aluminum teeth, a first heat insulation sheet arranged above the MCH heating sheet, a heat insulation pressure cover arranged above the first heat insulation sheet, and a second heat insulation sheet arranged on the heat insulation pressure cover. The pitch-adjustable movable tooth sleeve is arranged under 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, and a sleeve tooth for sleeve-connecting each aluminum tooth is arranged below the pitch-adjustable movable tooth sleeve. The MCH heating plate is connected to the control unit, which consists of a control panel, control buttons, and a power cord. This prior art uses an overhead heat-insulating frame to heat-insulate the heat-conducting aluminum teeth and the adjustable pitch movable gear sleeve, and uses a heat-insulating sheet and a heat-insulating pressure cover to package the heating component, the heat-conducting aluminum teeth, and the adjustable pitch movable gear sleeve as a whole and fix them on the shell. However, the adjustable pitch movable gear sleeve is still in direct contact with the shell, and direct heat transfer cannot be avoided; the infrared light irradiation range is small and the effect is weak; the heat-conducting aluminum teeth lack protection and are easy to burn users.

technical problem

The technical problem to be solved by the present invention is to provide a heating comb in view of 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.

Technical Solutions

An embodiment of the present invention provides a heating comb, which at least includes: a shell having an opening; a comb body assembly, including at least 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.

In some of the embodiments, the heat generating assembly includes a heat generating body and a heat transfer frame, the heat generating body is disposed in the heat transfer frame, and the heat transfer frame is in heat transfer contact with the comb teeth portion.

In some embodiments, the heat transfer frame comprises 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, and a cavity for mounting a heating plate is provided between the lower heat transfer plate and the upper heat transfer plate.

In some of the embodiments, the comb teeth portion and the comb cover are respectively fixed on the heat insulation component and are non-contacting with each other.

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

In some of the embodiments, the mounting feet are located at two ends of the thermal insulation assembly.

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.

In some of these embodiments, the light source assembly has an infrared thermal radiation light source.

In some of the 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.

In some of the embodiments, the light guide cover is disposed on the thermal insulation component.

Beneficial Effects

Compared with the related art, the heating comb provided by the embodiment of the present invention adopts a non-direct contact assembly structure between the heating component and the comb body component and the shell, which effectively reduces the heat loss of the heating component and reduces the heat transfer to the shell through the heating component and the comb cover, thereby reducing the temperature of the shell handle. The infrared heat radiation function is added, and the ambient temperature of the infrared heat radiation light source is reduced by the heat insulation component.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an overall structural diagram of a heating comb according to an embodiment of the present invention.

FIG. 2 is a diagram showing the exploded structure of a heating comb according to an embodiment of the present invention.

FIG. 3 is a partial structural diagram of a heating comb according to an embodiment of the present invention.

FIG. 4 is a structural diagram of a heat insulation assembly according to an embodiment of the present invention.

FIG5 is a structural diagram of a combing set according to an embodiment of the present invention.

FIG. 6 is a structural diagram of a comb tooth portion according to an embodiment of the present invention.

FIG. 7 is a structural diagram of a heat transfer frame according to an embodiment of the present invention.

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 position; 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.

Best Mode for Carrying Out the Invention

As shown in Figures 1-2, a heating comb provided in 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.

As shown in FIG2 , the structure of the housing of the embodiment of the present invention is shown. The housing 1 is composed of an upper housing 8 and a lower housing 9. The front parts of the upper housing 8 and the lower housing 9 are functional parts, the middle parts are control parts, and the rear parts are handheld parts. The functional parts are used to install the comb 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 handheld part are used to install the electric control assembly 6. An opening 10 is provided in the upper housing 8, two limiting holes 11 are provided at the front outer end of the lower housing 9, and a threaded hole 12 is provided at the front inner end of the lower housing 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 housing 9, respectively, and 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 housing 9 to suspend the heat insulation assembly 3. The heat insulation assembly 3 itself has a heat insulation function and only reduces the area of direct contact through the mounting feet 13.

As shown in Fig. 2-4, the structure of the heat insulation component 3 of the embodiment of the present invention is shown. 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 sides of the two ends of the heat insulation base. The heat insulation base is suspended and fixed on the lower shell 9 through the three mounting feet 13, and the heat insulation base and the upper shell 8 are non-contacting, which can well reduce the transfer of heat to the shell. In addition, the heat insulation base is assembled and fixed with the comb sleeve 21 through the comb sleeve mounting hole 15 on the outside, which also avoids the direct contact between the comb sleeve and the shell, and further reduces the transfer of heat from the comb sleeve to the shell. In addition, the heat insulation base is assembled and fixed with the comb tooth part 20 through the comb tooth mounting hole 16 on the inside, thereby avoiding the direct contact between the comb teeth and the shell and the comb sleeve, and further reducing the transfer of heat from the comb teeth to the shell. (Of course, the heat transfer on the air cannot be blocked, and the only way to reduce the contact heat transfer other than air heat transfer is to set the inner wall structure 17 with concave and convex intervals on the inner walls on both sides of the heat insulation base. First, the strength of the heat insulation base can be strengthened, and secondly, it can serve as a support for the heat transfer frame 27. The inner wall structure 17 with concave and convex intervals can reduce the contact area between the heat transfer frame 27 and the heat insulation base as much as possible, and the bottom surface of the heat transfer frame 27 is set and limited on the inclined chamfer 18 of the inner wall. On the outer walls on the left and right sides of the heat insulation base, there is a light guide 19 with a wide top and a narrow bottom. The function of the light guide 19 is to provide a light path guide for the light source assembly 7. Molding the light guide 19 on the heat insulation base can reduce the number of accessories and form a heat-insulating light guide 19. Under the protection of the light guide 19, the light source assembly 7 can be prevented from being disturbed by excessive heat, thereby extending the service life of the light source assembly 7. The number of hollow structures corresponds to the number of light sources.

As shown in Figs. 2, 3, 5 and 6, the structure of the comb assembly 2 of the embodiment of the present invention is shown. 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 formed heat-conducting comb tooth group. The heat-conducting comb tooth group has heat-conducting comb teeth that are wide at the bottom and sharp at the top. There is a certain gap between adjacent heat-conducting comb teeth. A positioning column 22 is provided on the bottom surface of the comb tooth portion 20. The positioning column 22 is 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 formed heat-insulating comb tooth group. The heat-insulating comb tooth group has heat-insulating comb teeth that are wide at the bottom and sharp at the top. There is 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, which helps to better transfer heat between adjacent heat-conducting comb teeth without being hindered by the heat-insulating comb teeth, thereby improving the heat transfer efficiency. The outer edges 35 on both sides of the outer periphery of the comb sleeve 21 and the inner wall of the opening 10 have a gap 23 at a certain distance and are in a non-contact position, 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 has more heat transfer than non-contact, it may not be easy to detect the difference in some applications or users. Therefore, partial contact can still achieve the purpose of reducing heat transfer and also belongs to the protection scope of the present invention. In order to further reduce the transfer of heat, a plurality of hollow structures 24 are arranged on the outer edge 35 along its extension direction. The plurality of 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 wall of the opening 10, and the second is to serve as the light outlet of the light source assembly 7. The plurality of light outlets can improve the illumination range and effect of thermal radiation. Then, the comb sleeve mounting column 25 on the bottom surface of the comb sleeve 21 is fixed to the comb sleeve mounting hole 15 on the heat insulation base by screws, and the comb tooth mounting column 26 on the bottom surface of the comb tooth part 20 is fixed to the comb tooth mounting hole 16 on the heat insulation base by screws. The upper part of the comb tooth part 20 and the comb sleeve 21 is exposed to the opening 10 of the upper shell 8.

As shown in FIGS. 2 and 7 , the structure of the heating component 4 of the 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 formed in one piece. The heat transfer plate 28 and the lower heat transfer plate 29 form a cavity under the enclosure of the side heat transfer plates on both sides. The heating element is placed in the cavity. The heat transfer plate 28 is longer than the lower heat transfer plate 29. The extension length of the heat transfer plate 28 covers the entire bottom surface of the heat conduction comb teeth, so that the coverage surface of the secondary heat transfer can cover the entire heat conduction comb teeth. The temperature difference of the heat conduction comb teeth can be reduced through secondary heat transfer. The lower heat transfer plate 29 is placed against the inclined chamfer 18 of the inner side wall of the heat insulation base to be suspended.

As shown in FIG2 , the structure of the light source assembly 7 of the embodiment of the present invention is shown. The light source assembly 7 includes a light source circuit board 30 and an infrared heat radiation light source 31 connected to the light source circuit board 30. The light source circuit board 30 is fixed to the support column 14 of the lower 9 by screws. The light source of the infrared heat radiation light source 31 is emitted through the hollow structure 24 with the assistance of the light guide cover 19 to realize the radiation function.

As shown in Figure 2, 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 holes on the upper shell 8 toward the comb body component 2.

Those skilled in the art should understand that the technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the 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.

Claims

A heating comb, characterized in that it at least comprises:

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 fixedly mounted inside the housing (1) via a heat insulation assembly (3); the comb tooth portion (20) and the comb cover (21) are partially exposed outside 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).
A heating comb according to claim 1, characterized in that the heating component (4) comprises a heating body and a heat transfer frame (27), the heating body is disposed in the heat transfer frame (27), and the heat transfer frame (27) is in heat transfer contact with the comb tooth portion (20).
A heating comb according to claim 2, characterized in that the heat transfer frame (27) has an upper heat transfer plate (28) and a lower heat transfer plate (29), the heat transfer plate (28) is in heat transfer contact with the comb tooth portion (20), and a cavity for mounting the heating plate is provided between the lower heat transfer plate (29) and the heat transfer plate (28).
A heating comb according to claim 1, characterized in that the comb tooth portion (20) and the comb cover (21) are respectively fixed on the heat insulation component and are non-contacting with each other.
A heating comb according to claim 1, characterized in that the heat insulation component (3) is assembled and fixed to the shell (1) via at least two mounting feet (13).
A heating comb according to claim 5, characterized in that the mounting feet (13) are respectively located at two ends of the thermal insulation component (3).
A heating comb according to claim 1, characterized in that it also comprises a light source assembly (7) which is built into the housing (1), and light from the light source assembly (7) is emitted through the hollow structure (24).
The heating comb according to claim 7, characterized in that the light source assembly (7) has an infrared thermal radiation light source (31).
A heating comb according to claim 7 or 8, characterized in that a light guide cover (19) matching the light source assembly (7) is provided, 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).
A heating comb according to claim 9, characterized in that the light guide cover (19) is arranged on the heat insulation component (3).