Heating module of hair straightener

Abstract

The utility model discloses a heating module of a hair straightener. The heating module of the hair straightener comprises a shell and an electric heating plate installed on the shell. The electric heating plate is provided with a heat conduction panel and an electric heating film, and the electric heating film is formed on the back face of the heat conduction panel. The two transverse sides of the heat conduction panel are provided with first inserting parts extending in the longitudinal direction of the heat conduction panel, the two transverse sides of the shell are provided with second inserting parts extending in the longitudinal direction of the shell, and the second inserting parts and the first inserting parts are in inserting fit. The heating module of the hair straightener has the advantages of being simple in structure and high in heating efficiency.

Description

Technical Field

[0001] The utility model relates to the field of hair straighteners used for hair styling; more specifically, it relates to a heating module of the hair straightener. Background Art

[0002] The working principle of a hair straightener is to heat the hair to soften it and then cool it to achieve the purpose of hair styling (such as curling or straightening the hair).

[0003] In the prior art, the typical structure of a hair straightener heating module includes a housing, a heat-conducting panel disposed on the housing, and a heating element disposed inside the housing. The heating element is arranged to contact the heat-conducting panel under the pressure of an elastic element, so that the heat generated by the heating element is transferred to the heat-conducting panel, and the heat-conducting panel is used to heat and style the hair. This hair straightener heating module is not only complex in structure, but also the existence of the heat conduction resistance between the heating element and the heat-conducting panel also affects the heating efficiency. When the elastic contact force between the heating element and the heat-conducting panel decreases after the hair straightener has been used for a certain period of time, the reduction in heating efficiency will be more obvious. Utility Model Content

[0004] In view of the deficiencies in the prior art, the main purpose of the utility model is to provide a hair straightener heating module with a simple structure and good heating effect.

[0005] In order to achieve the above main purpose, the utility model discloses a hair straightener heating module, comprising a housing and an electric heating plate mounted on the housing, wherein:

[0006] The electric heating plate comprises a heat-conducting panel and an electric heating film, wherein the electric heating film is formed on the back of the heat-conducting panel;

[0007] The heat-conducting panel has first plug-in parts extending in the longitudinal direction on both lateral sides thereof, and the shell has second plug-in parts extending in the longitudinal direction on both lateral sides thereof, and the second plug-in parts are plug-fitted with the first plug-in parts.

[0008] Furthermore, the electric heating plate also includes an insulating protective film covering the electric heating film, and the electric heating film is provided with conductive contact parts located at both ends of the heat conductive panel in the longitudinal direction and exposed from the insulating protective film.

[0009] Furthermore, two conductive joints are provided in the shell, and the two conductive joints are electrically connected to the conductive contact parts located at two ends of the heat-conducting panel in the longitudinal direction, respectively.

[0010] According to a specific embodiment of the utility model, the conductive connector is provided with an elastic conductive part and a wire connecting part, the elastic conductive part is elastically pressed against the conductive contact part, the wire connecting part is used to connect an external wire, and the back of the shell is provided with an avoidance hole for the external wire to pass through.

[0011] According to a specific embodiment of the present utility model, the first longitudinal end of the shell has a first end cover integrally formed with the shell, the second longitudinal end of the shell is connected to a detachable second end cover, and the longitudinal ends of the heat conductive panel are respectively abutted against the first end cover and the second end cover.

[0012] Preferably, a snap-fit ​​connection is formed between the second end cover and the second longitudinal end of the shell.

[0013] According to a specific implementation of the utility model, the first plug-in portion is a rib, and the second plug-in portion is a slot.

[0014] Preferably, the surface of the heat-conducting panel is provided with a glaze layer or is polished.

[0015] According to a specific implementation of the utility model, the heat-conducting panel is a ceramic panel or a microcrystalline glass panel. Preferably, the heat-conducting panel is a ceramic panel or a microcrystalline glass panel with far-infrared radiation function.

[0016] According to a specific implementation of the present utility model, the heat-conducting panel has a heating portion protruding from the front surface of the shell, and the width of the heating portion is equal to or smaller than the front width of the shell.

[0017] According to a specific implementation of the utility model, the electric heating film is a graphene heating film or a metal heating film.

[0018] Furthermore, a support surface is provided in the shell, and the conductive connector is fixed on the support surface by an insulating fastener.

[0019] The technical solution of the utility model has the following beneficial effects:

[0020] The utility model directly manufactures the electric heating film on the heat-conducting panel to form an electric heating plate for heating hair, which is not only simple in structure and low in cost, but also substantially eliminates the conduction heat resistance between the two, which is beneficial to improving the heating efficiency. In addition, the electric heating plate / heat-conducting panel is installed on the housing by plug-in matching, which has the advantages of simple and convenient assembly and disassembly.

[0021] Furthermore, by using a ceramic panel or a microcrystalline glass panel with far-infrared radiation function as an insulating heat-conducting panel and utilizing the far-infrared radiation characteristics to assist in heating the hair, the operating temperature and / or heating time of the electric heating plate can be reduced to save energy and reduce damage to the hair caused by high temperature.

[0022] In order to more clearly illustrate the purpose, technical solutions and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a first-view stereoscopic diagram of Example 1 of the heating module of the hair straightener of the utility model;

[0024] Figure 2 This is a second perspective stereogram of Example 1 of the heating module of the hair straightener of the utility model;

[0025] Figure 3 This is a first exploded structural diagram of Example 1 of the heating module of the hair straightener of the utility model;

[0026] Figure 4 This is a second exploded structural diagram of Example 1 of the heating module of the hair straightener of the utility model;

[0027] Figure 5 is a transverse cross-sectional view of Example 1 of the heating module of the hair straightener of the utility model;

[0028] Figure 6a It is a schematic diagram of the back structure of the electric heating plate embodiment 1 of the utility model;

[0029] Figure 6b It is a schematic diagram of the back structure of the electric heating plate embodiment 2 of the utility model;

[0030] Figure 7 This is a diagram of the matching structure of the heating module and the support member on the hair straightener body in the utility model;

[0031] Figure 8 is a stereogram of Example 2 of the heating module of the hair straightener of the utility model;

[0032] Fig. 9 It is a transverse cross-sectional view of Example 2 of the heating module of the hair straightener of the present invention. DETAILED DESCRIPTION

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0034] Example 1

[0035] like Figures 1 to 5 As shown, the hair straightener heating module of Example 1 includes an electric heating plate 10, a shell 20 and two conductive connectors 40. The electric heating plate 10 is installed on the front side of the shell 20; the two conductive connectors 40 are both arranged in the shell 20, both are electrically connected to the electric heating plate 10, and are located at both ends of the electric heating plate 10 in the length direction (longitudinal direction).

[0036] like Figure 6a and Figure 6b As shown, the electric heating plate 10 includes a heat-conducting panel 11 and an electric heating film, and the electric heating film is arranged on the back side (inner side surface) of the heat-conducting panel 11. Preferably, the electric heating plate 10 also includes an insulating protective film 13 covering the electric heating film, and the electric heating film is provided with conductive contact portions located at both ends of the heat-conducting panel 11 in the longitudinal direction and exposed from the insulating protective film 13. In addition, a temperature sensor may be provided on the inner surface of the heat-conducting panel 11 to monitor the working temperature of the electric heating plate 10.

[0037] In the present utility model, the heat-conducting panel 11 can be an insulating heat-conducting panel, specifically a ceramic (such as aluminum oxide, aluminum nitride, etc.) panel or a microcrystalline glass panel, especially a high-density ceramic panel or microcrystalline glass panel to improve its thermal conductivity. Preferably, the heat-conducting panel 11 can be a ceramic panel or a microcrystalline glass panel with a far-infrared radiation function. The infrared radiation characteristics of the heat-conducting panel 11 are used to assist in heating the hair, which can reduce the heating temperature and / or time of the electric heating plate 10 during hair styling, thereby reducing energy consumption and high temperature damage to the hair. There is no restriction on the color of the ceramic panel or microcrystalline glass panel, which can be various colors such as white, black, and brown. Furthermore, the surface of the ceramic panel or microcrystalline glass panel, especially the surface exposed from the shell 20, can be polished.

[0038] In addition, the heat-conducting panel 11 may also be a metal panel (e.g., an aluminum plate) with a heat-conducting insulating layer on the surface. For example, a heat-conducting insulating layer is formed on the back of the metal panel, and the electric heating film is made on the heat-conducting insulating layer. The surface of the metal panel, especially the part of the surface exposed from the housing 20, may also be polished.

[0039] Furthermore, the surface of the heat-conducting panel 11 may be glazed to form a glazed layer. The color of the glazed layer is not limited, and may be white, gray, black, or a color such as red, blue, etc. The glazed layer may be formed only on the surface of the heat-conducting panel 11 exposed from the housing 20, or may be formed on the entire surface of the heat-conducting panel 11. The provision of the glazed layer not only makes the appearance of the heat-conducting panel more beautiful, but also serves as an electrical insulator, that is, the glazed layer may be used as a heat-conducting insulating layer.

[0040] In some embodiments, Figure 6aAs shown, the electric heating film is a graphene heating film 12a (shown by a dotted line in the figure), and the graphene heating film 12a is provided with metal conductive parts 12a1 located at both ends of the heat conductive panel 11 in the longitudinal direction and serving as an example of a conductive contact part, and the metal conductive part 12a1 is preferably made of a silver film, but is not limited thereto. The insulating protective film 13 (the shaded area in the figure) is provided with a window 131, and the metal conductive part 12a1 is at least partially exposed from the window 131 and can be electrically connected to the conductive connector 40.

[0041] In some embodiments, Figure 6b As shown, the electric heating film is a metal heating film 12b (shown by dotted lines in the figure) having a tortuous line distribution. The metal heating film 12b is provided with conductive contact portions 12b1 located at both longitudinal ends of the heat-conducting panel 11. The conductive contact portions 12b1 are at least partially exposed from the window 131 of the insulating protective film 13 and can be electrically connected to the conductive connector 40.

[0042] Further, the electric heating plate 10 / heat-conducting panel 11 can be plugged into the housing 20. Specifically, the heat-conducting panel 11 has ribs 111 extending in the longitudinal direction thereof and provided as an example of a first plug-in portion on both lateral sides, and the housing 20 has slots 21 extending in the longitudinal direction thereof and provided as an example of a second plug-in portion on both lateral sides. The ribs 111 can be inserted into the slots 21 from one longitudinal end of the housing 20 to install the electric heating plate 10 / heat-conducting panel 11 on the housing 20. It is easy to understand that the first plug-in portion and the second plug-in portion can be replaced with each other without affecting the implementation of the utility model.

[0043] Furthermore, the heat-conducting panel 11 has a heating portion 112 protruding from the front of the housing 20, and the heating portion 112 is used to contact and heat the hair. In Embodiment 1, the width (lateral dimension) of the heating portion 112 is equal to the front width of the housing 20. At this time, in the lateral direction of the heat-conducting panel 11, the front side of the housing 20 is completely covered by the heating portion 112 to form a frameless structure.

[0044] In the embodiment, the first longitudinal end of the housing 20 has a first end cap 22 integrally formed with the housing 20, and the second longitudinal end of the housing 20 is connected to a detachable second end cap 30, and the electric heating plate 10 / heat-conducting panel 11 can be installed from the second longitudinal end of the housing 20, and the second end cap 30 can be installed after being installed in place. The longitudinal ends of the heat-conducting panel 11 are respectively abutted against the first end cap 22 and the second end cap 30, so as to be fixed on the housing 20.

[0045] A snap-fit ​​connection may be formed between the second end cover 30 and the second longitudinal end of the housing 20. For example, the second end cover 30 is provided with a snap-fitting protrusion 31, and the second longitudinal end of the housing 20 is provided with a snap-fitting groove 23, and the snap-fitting protrusion 31 and the snap-fitting groove 23 form a snap-fitting fit to fix the end cover 30 on the housing 20. Further, the second longitudinal end of the housing 20 may be provided with one or more (for example, two as shown) positioning protrusions 24, and the second end cover 30 is correspondingly provided with a positioning groove 32, and the positioning protrusion 24 can be inserted into the positioning groove 32 to achieve a stable connection and precise alignment between the second end cover 30 and the housing 20. As a variation of the embodiment, the second end cover 30 may also be fixed to the housing 20 by screws.

[0046] The conductive connector 40 is generally located inside the housing 20 to ensure its safety in use; in addition, the provision of the conductive connector 40 can also improve the reliability of the electrical connection. Specifically, a support surface 25 is provided inside the housing 20, and the conductive connector 40 is fixed on the support surface 25 by an insulating fastener 50. The conductive connector 40 can be made of a metal material as a whole, and is provided with one or more (for example, two) elastic conductive parts 41 and a wire connecting part 42. The elastic conductive part 41 elastically presses against the conductive contact part of the electric heating film to form an electrical connection with the electric heating film. The wire connecting part 42 is used to connect an external wire, and a avoidance hole 26 for the external wire to pass through is provided on the back of the housing 20. As a variation of the embodiment, the external wire can also be directly welded to the conductive contact part of the electric heating film to omit the provision of the conductive connector 40 and simplify the structure. The external power supply can be a direct power supply or an AC power supply.

[0047] Preferably, the conductive joint 40 is provided with an inclined portion 411 connected to the elastic conductive portion 41, and the inclined portion 411 is arranged to be inclined toward the downstream side of the installation and insertion direction of the electric heating plate 10 / heat-conducting panel 11, so as to facilitate the smooth insertion of the electric heating plate 10 / heat-conducting panel 11. In addition, when the elastic conductive portion 41 abuts against the electric heating plate 10 / heat-conducting panel 11, the inclined portion 411 can provide sufficient elastic support to improve the reliability of the electrical connection.

[0048] Furthermore, if Figure 2 and Figure 7 As shown, two limiting grooves 27 are further provided on the back of the shell 20, and two supporting members 100 are correspondingly provided on the hair straightener body. The supporting member 100 is provided with a supporting protrusion 101. After the heating module is installed on the hair straightener body, the two limiting grooves 27 are respectively matched with the two supporting protrusions 101, and the heating module as a whole deflects with the two supporting protrusions 101 as fulcrums to meet different styling requirements.

[0049] In the present invention, the connection and matching structure between the heating module and the hair straightener body can be the same as that in the prior art, and will not be described in detail here.

[0050] Example 2

[0051] like Figures 8 to 9 As shown, the difference between Example 2 and Example 1 is that in Example 2, the width of the heating portion 112 of the heat-conducting panel 11 is smaller than the front width of the shell 20, that is, in the lateral direction of the heat-conducting panel 11, the front of the shell 20 has a frame that is not covered by the heat-conducting panel 11.

[0052] For other descriptions of Example 2, please refer to Example 1 and will not be repeated here.

[0053] Although the present invention is described above through embodiments, it should be understood that the above embodiments are only used to exemplarily describe the feasible implementation methods of the present invention, and should not be interpreted as limiting the scope of protection of the present invention. That is, any replacement or change made by those skilled in the art in accordance with the present invention should also be covered by the scope of protection of the claims of the present invention.

Claims

1. A hair straightener heating module, comprising a housing and an electric heating plate mounted on the housing, characterized in that: The electric heating plate comprises a heat-conducting panel and an electric heating film, wherein the electric heating film is formed on the back of the heat-conducting panel; The heat-conducting panel has first plug-in parts extending in the longitudinal direction on both lateral sides thereof, and the shell has second plug-in parts extending in the longitudinal direction on both lateral sides thereof, and the second plug-in parts are plug-fitted with the first plug-in parts.

2. The hair straightener heating module according to claim 1, characterized in that: The electric heating plate further comprises an insulating protective film covering the electric heating film, and the electric heating film is provided with conductive contact portions located at both ends of the heat conductive panel in the longitudinal direction and exposed from the insulating protective film.

3. The hair straightener heating module according to claim 2, characterized in that: Two conductive joints are provided in the shell, and the two conductive joints are electrically connected to the conductive contact parts located at the two longitudinal ends of the heat-conducting panel respectively; the conductive joint is provided with an elastic conductive part and a wire connecting part, the elastic conductive part is elastically pressed against the conductive contact part, and the wire connecting part is used to connect an external wire, and an avoidance hole for the external wire to pass through is provided on the back of the shell.

4. The hair straightener heating module according to claim 1, characterized in that: The first longitudinal end of the shell has a first end cover integrally formed with the shell, the second longitudinal end of the shell is connected to a detachable second end cover, and the longitudinal ends of the heat conducting panel are respectively abutted against the first end cover and the second end cover.

5. The hair straightener heating module according to claim 1, characterized in that: The first plug-in portion is a rib, and the second plug-in portion is a slot.

6. The hair straightener heating module according to claim 1, characterized in that: The surface of the heat-conducting panel is provided with a sealing glaze layer or polished.

7. The hair straightener heating module according to claim 1, characterized in that: The heat-conducting panel is a ceramic panel or a glass-ceramic panel.

8. The hair straightener heating module according to claim 7, characterized in that: The heat-conducting panel is a ceramic panel or a microcrystalline glass panel with far-infrared radiation function.

9. The hair straightener heating module according to claim 1, characterized in that: The heat conduction panel has a heating portion protruding from the front surface of the housing, and a width of the heating portion is equal to or smaller than a width of the front surface of the housing.

10. The hair straightener heating module according to claim 1, characterized in that: The electric heating film is a graphene heating film or a metal heating film.

Images