Hair treatment device

Abstract

The application discloses a hair processing device, which comprises a device main body, a heating body, a control unit, a first switching switch and a second switching switch. The device main body comprises a comb tooth part and a holding part, and the comb tooth part is arranged at the end of the holding part. The heating body is arranged in the holding part and located at the bottom of the comb tooth part. The heating body at least comprises a first sub-heating body and a second sub-heating body which is stacked on the first sub-heating body. The control unit is arranged in the holding part. The first switching switch is connected between the first sub-heating body and a battery module, and the first switching switch is connected with the control unit. The second switching switch is connected between the second sub-heating body and a first power interface, and the second switching switch is connected with the control unit. The application can realize the function of charging and using at the same time, and can consider the flexibility and heating efficiency and the like.

Description

Technical Field

[0001] This application relates to the field of hair care technology, and in particular to a hair treatment device. Background Technology

[0002] Hair grooming devices include combing components that can comb or style hair. However, some existing hair grooming devices can only be powered by batteries or plugs, which affects the user experience. Utility Model Content

[0003] This application provides a hair treatment device to solve the technical problem that some existing hair treatment devices can only be powered by batteries or direct plug-in power, which affects the user experience.

[0004] To address the aforementioned technical problems, this application proposes a hair treatment device, comprising: a device body including a comb-tooth portion and a grip portion, the comb-tooth portion being disposed at the end of the grip portion; a heating element disposed within the grip portion and located at the bottom of the comb-tooth portion, the heating element including at least a first sub-heating element and a second sub-heating element stacked on top of the first sub-heating element; a control unit disposed in the grip portion; a first switching switch connected between the first sub-heating element and a battery module, the first switching switch being connected to the control unit; and a second switching switch connected between the second sub-heating element and a first power interface, the second switching switch being connected to the control unit.

[0005] It includes a charging management unit, which is disposed on the grip and connected to the second power interface and between the first switching switch and the battery module.

[0006] The first sub-heating element includes a first heating layer, which includes a first substrate and a first heating circuit. The first heating circuit is spread across the surface of the first substrate through a first arrangement structure and is connected to the battery module. The second sub-heating element includes a second heating layer, which includes a second substrate and a second heating circuit. The second heating circuit is spread across the surface of the second substrate through a second arrangement structure and is connected to the first power interface.

[0007] The first sub-heating element further includes a first insulating layer and a second insulating layer, with the first heating layer stacked between the first insulating layer and the second insulating layer; the second sub-heating element further includes another second insulating layer and a third insulating layer, with the second heating layer stacked between the other second insulating layer and the third insulating layer; the first second insulating layer and the other second insulating layer are stacked and connected.

[0008] The first heating circuit includes a first heating wire body, and the second heating circuit includes a second heating wire body. The first arrangement structure of the first heating wire body on the first substrate and the second arrangement structure of the second heating wire body on the second substrate are the same. The first heating wire body and the second heating wire body are made of different materials.

[0009] The first sub-heating element includes a first insulating layer; the second sub-heating element includes a third insulating layer; the first heating layer is stacked between the first insulating layer and the second insulating layer, and the second heating layer is stacked between the second insulating layer and the third insulating layer.

[0010] The first heating circuit includes a first heating wire body and first heating ends connected to both ends of the first heating wire body. The second heating circuit includes a second heating wire body and second heating ends connected to both ends of the second heating wire body. The two second heating ends are located between the two first heating ends and are arranged in a row. The first heating wire body covers the surface of the first substrate through a first arrangement structure. The second heating wire body passes through the first substrate and covers the second substrate through a second arrangement structure.

[0011] The first arrangement structure of the first heating wire on the first substrate and the second arrangement structure of the second heating wire on the second substrate are different; the first heating wire and the second heating wire are made of the same material.

[0012] The resistance of the first heating circuit is greater than or equal to 0.6 ohms and less than or equal to 0.9 ohms; the resistance of the second heating circuit is greater than or equal to 6 ohms and less than or equal to 9 ohms.

[0013] Wherein, the first heating circuit and / or the second heating circuit include at least one of a metal heating circuit and an alloy heating circuit; and / or, the insulating layer of the first sub-heating element and / or the insulating layer of the second sub-heating element includes a polyimide film.

[0014] The beneficial effects of this application are as follows: Unlike existing technologies, this application provides a hair treatment device. The hair treatment device includes a main body, a heating element, a control unit, a first switching switch, and a second switching switch. The main body includes a comb-tooth portion and a grip portion, with the comb-tooth portion disposed at the end of the grip portion. The heating element is disposed within the grip portion and located at the bottom of the comb-tooth portion, and the heating element includes at least a first sub-heating element and a second sub-heating element stacked on top of the first sub-heating element. The control unit is disposed in the grip portion. The first switching switch is connected between the first sub-heating element and the battery module, and is also connected to the control unit. The second switching switch is connected between the second sub-heating element and a first power interface, and is also connected to the control unit.

[0015] The hair treatment device, through its main body, heating element, control unit, first switching switch, and second switching switch, enables simultaneous charging and use. The battery module powers the first sub-heating element, and the first power interface powers the second sub-heating element. The control unit can adjust the power supply to each heating circuit according to actual needs, allowing for separate heating of the first and / or second sub-heating elements, as well as simultaneous heating, thus balancing flexibility and heating efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0017] Figure 1 This is an exploded schematic diagram of the hair treatment equipment of this application;

[0018] Figure 2 This is a simplified first structural diagram of the hair treatment device of this application;

[0019] Figure 3 This is a simplified second structural diagram of the hair treatment device of this application;

[0020] Figure 4 This is a first structural schematic diagram of the first embodiment of the heating element of this application;

[0021] Figure 5 This is a schematic diagram of the structure of the second embodiment of the heating element of this application;

[0022] Figure 6 This is a schematic diagram of the structure of the first heating layer in the first embodiment of the heating element of this application;

[0023] Figure 7 This is a schematic diagram of the structure of the second heating layer in the first embodiment of the heating element of this application;

[0024] Figure 8 This is a second structural schematic diagram of the first embodiment of the heating element of this application;

[0025] Figure 9 This is a schematic diagram of the structure of the first heating layer in the second embodiment of the heating element of this application;

[0026] Figure 10 This is a schematic diagram of the structure of the second heating layer in the second embodiment of the heating element of this application.

[0027] Reference numerals in the figures: 10, heating element; 11, insulating layer; 111, first insulating layer; 112, second insulating layer; 113, third insulating layer; 12, heating layer; 121, first heating layer; 1211, first substrate; 12111, via; 1212, first heating circuit; 12121, first heating wire body; 12122, first heating end; 122, second heating layer; 1221, second substrate; 1222, second heating circuit ; 12221, Second heating wire body; 12222, Second heating end; 13, First sub-heating element; 131, Notch; 14, Second sub-heating element; 100, Hair processing equipment; 20, Equipment body; 210, Comb teeth; 220, Grip; 21, Control unit; 22, First switching switch; 23, Second switching switch; 24, Battery module; 25, First power interface; 26, Charging management unit; 28, Second power interface. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0030] The hair treatment device provided by this utility model will be described in detail below with reference to the embodiments.

[0031] Please see Figure 1 and Figure 2 , Figure 1 This is an exploded schematic diagram of the hair treatment equipment of this application; Figure 2This is a simplified structural diagram of the hair treatment device of this application. This application provides a hair treatment device. The hair treatment device 100 includes a device body 20, a heating element 10, a control unit 21, a first switching switch 22, and a second switching switch 23. The device body 20 includes a comb-tooth portion 210 and a grip portion 220. The comb-tooth portion 210 is disposed at the end of the grip portion 220. The heating element 10 is disposed within the grip portion 220 and located at the bottom of the comb-tooth portion 210. The heating element 10 includes at least a first sub-heating element 13 and a second sub-heating element 14 stacked on top of the first sub-heating element 13. The control unit 21 is disposed in the grip portion 220. The first switching switch 22 is connected between the first sub-heating element 13 and the battery module 24. The first switching switch 22 is connected to the control unit 21. The second switching switch 23 is connected between the second sub-heating element 14 and the first power interface 25. The second switching switch 23 is connected to the control unit 21.

[0032] The hair treatment device 100 may include, but is not limited to, a straightener, a flat iron, and a curling iron. In this embodiment, the hair treatment device 100 includes a straightener. The comb teeth 210 are used for combing or styling hair. The grip 220 is used by the user to hold and use the hair. The comb teeth 210 are detachably or fixedly connected to the end of the grip 220.

[0033] The heating element 10 is disposed within the grip portion 220. The heating element 10 may be detachably or fixedly connected to the grip portion 220. The heating element 10 is located at the bottom of the comb portion 210. The heating element 10 provides heat to the comb portion 210, enabling the comb portion 210 to comb or style hair, etc., to meet the user's needs. The heating element 10 may include at least two sub-heating elements (not shown in the figure). Multiple sub-heating elements are stacked. For example, the heating element 10 may include a first sub-heating element 13 and a second sub-heating element 14. The heating element 10 may include an nth heating element. The heating element 10 may include, but is not limited to, a first sub-heating element 13, a second sub-heating element 14, a third sub-heating element, and a fourth sub-heating element. The first sub-heating element 13 and the second sub-heating element 14 are stacked together.

[0034] The control unit 21 is disposed within the grip portion 220. The control unit 21 may be detachable or fixed within the grip portion 220. The control unit 21 is connected to the first sub-heating element 13 and / or the second sub-heating element 14, and is used to control the heating of the first sub-heating element 13, or the second sub-heating element 14, or the heating of the first sub-heating element 13 and the second sub-heating element 14. The control unit 21 may include, but is not limited to, a microcontroller unit (MCU). The control unit 21 is a conventional component and is not limited thereto.

[0035] The first switching switch 22 can be connected to the first sub-heating element 13 and the battery module 24. The battery module 24 provides an operating voltage to the first sub-heating element 13, enabling it to heat up. The first switching switch 22 can disconnect the connection between the first sub-heating element 13 and the battery module 24, at which point the first sub-heating element 13 does not heat up. The first switching switch 22 is connected to the control unit 21. At this time, the control unit 21 controls the first switching switch 22 to connect or disconnect the connection between the first sub-heating element 13 and the battery module 24. The first switching switch 22 may include, but is not limited to, a first MOS transistor (Metal-Oxide-Semiconductor Field-Effect Transistor).

[0036] The second switch 23 can be connected to the second sub-heater 14 of the heating element 10 and the first power interface 25. The first power interface 25 provides another operating voltage to the second sub-heater 14, enabling it to heat up. The second switch 23 can disconnect the connection between the second sub-heater 14 and the first power interface 25, at which point the second sub-heater 14 does not heat up. The second switch 23 is connected to the control unit 21. At this time, the control unit 21 controls the second switch 23 to connect or disconnect the connection between the second sub-heater 14 and the first power interface 25. The second switch 23 may include, but is not limited to, a second MOSFET. The first power interface 25 is used to connect the first power adapter (not shown in the figure).

[0037] The hair treatment device 100, through the aforementioned device body 20, heating element 10, control unit 21, first switching switch 22, and second switching switch 23, enables the hair treatment device 100 to achieve a charging-while-using function. The battery module 24 supplies power to the first sub-heating element 13, and the first power interface 25 supplies power to the second sub-heating element 14. The control unit 21 can control the power supply of each heating circuit according to actual conditions, enabling separate heating of the first sub-heating element 13 and / or the second sub-heating element 14, as well as simultaneous heating, thus balancing flexibility and heating efficiency.

[0038] Users can freely switch the mode of the hair treatment device 100. When the battery module 24 has a charge level higher than a preset threshold, it can be used directly for power supply. When the battery module 24 has a charge level lower than the preset threshold, it can be used directly for power supply via the first power interface 25, without waiting for the battery module 24 to charge. In practice, when the battery module 24 has a charge level higher than the preset threshold and the hair treatment device 100 is connected to the first power interface 25, both the battery module 24 and the first power interface 25 can be used simultaneously to heat the hair treatment device 100, further improving its heating efficiency.

[0039] Please see Figure 3 , Figure 3 This is a simplified second structural diagram of the hair treatment device of this application. (Combined with...) Figures 1 to 2 In some embodiments, the hair treatment device 100 includes a charging management unit 26. The charging management unit 26 is disposed on the grip portion 220. The charging management unit 26 is connected to a second power interface 28 and is connected between a first switch 22 and a battery module 24.

[0040] The charging management unit 26 is detachable or fixed within the grip portion 220. The charging management unit 26 can be connected to or disconnected from the second power interface 28. A first switching switch 22 can be connected between the first sub-heating element 13, the charging management unit 26, and the battery module 24, so that the charging management unit 26 and the battery module 24 all provide a working voltage to the first sub-heating element 13. The first switching switch 22 can also disconnect the connection between the first sub-heating element 13, the charging management unit 26, and the battery module 24, at which point the first sub-heating element 13 will not heat up. The first switching switch 22 is connected to the control unit 21, at which point the control unit 21 controls the first switching switch 22 to connect or disconnect the connection between the first sub-heating element 13, the charging management unit 26, and the battery module 24.

[0041] Through the combined action of the charging management unit 26, the first switching switch 22, and the second power interface 28, not only can the second power interface 28 charge the battery module 24 and reduce the power loss of the battery module 24, but it can also provide real-time operating voltage for the first sub-heating element 13.

[0042] The charging management unit 26 described above may include, but is not limited to, a charging management chip (not shown in the figure). The operating voltages of the first power interface 25 and the second power interface 28 may be different. For example, the operating voltage of the first power interface 25 may be 20V. The operating voltage of the second power interface 28 may be 9V. The operating voltage of the battery module 24 may be 7.2V. In other embodiments, the first power interface 25 and the second power interface 28 may also have other operating voltages to enable the hair processing device 100 to meet different operating voltage requirements; this is not limited here.

[0043] The first power interface 25 can be connected to a first power adapter. The second power interface 28 can be connected to a second power adapter (not shown in the figure). The first power adapter and the second power adapter may be different. The first power adapter and the second power adapter are conventional components and are not limited here.

[0044] Please see Figure 4 , Figure 5 , Figure 6 , Figure 7 as well as Figure 8 , Figure 4 This is a first structural schematic diagram of the first embodiment of the heating element of this application; Figure 5 This is a schematic diagram of the structure of the second embodiment of the heating element of this application; Figure 6 This is a schematic diagram of the structure of the first heating layer in the first embodiment of the heating element of this application; Figure 7 This is a schematic diagram of the structure of the second heating layer in the first embodiment of the heating element of this application; Figure 8 This is a second structural schematic diagram of the first embodiment of the heating element of this application. (Combined with...) Figures 1 to 3 The first sub-heating element 13 includes a first heating layer 121. The first heating layer 121 includes a first substrate 1211 and a first heating circuit 1212. The first heating circuit 1212 is arranged to cover the surface of the first substrate 1211 through a first arrangement structure. The first heating circuit 1212 is connected to the battery module 24. The second sub-heating element 14 includes a second heating layer 122. The second heating layer 122 includes a second substrate 1221 and a second heating circuit 1222. The second heating circuit 1222 is arranged to cover the surface of the second substrate 1221 through a second arrangement structure. The second heating circuit 1222 is connected to the first power interface 25.

[0045] The first heating layer 121 includes a first substrate 1211 and a first heating circuit 1212. The first substrate 1211 provides a mounting position for the first heating circuit 1212. The first heating circuit 1212 generates heat under the action of the battery module 24. The first heating circuit 1212 covers the surface of the first substrate 1211 through a first arrangement structure. The first arrangement structure is the arrangement of the first heating circuit 1212 on the first substrate 1211, and the arrangement may include, but is not limited to, the width, length, and meandering of the first heating circuit 1212 on the first substrate 1211. When the first heating circuit 1212 covers the surface of the first substrate 1211, the first heating circuit 1212 enables the heating element 10 to generate uniform heat throughout.

[0046] The second heating layer 122 includes a second substrate 1221 and a second heating circuit 1222. The second substrate 1221 provides a mounting position for the second heating circuit 1222. The second heating circuit 1222 generates heat under the action of the first power interface 25 and the first power adapter. The second heating circuit 1222 covers the surface of the second substrate 1221 through a second arrangement structure. The second arrangement structure is the arrangement of the second heating circuit 1222 on the second substrate 1221, and the arrangement may include, but is not limited to, the width, length, and meandering arrangement of the second heating circuit 1222 on the second substrate 1221. When the second heating circuit 1222 covers the surface of the second substrate 1221, the second heating circuit 1222 enables the heating element 10 to generate uniform heat. The aforementioned meandering arrangement can be winding and distributed in a serpentine shape, as long as it ensures that the heating circuit covers the corresponding substrate, and the specific meandering method is not limited.

[0047] When the first heating layer 121 and the second heating layer 122 in the heating element 10 are in different layers, the first heating layer 121 and the second heating layer 122 can be connected to different working voltages, so that the first heating circuit 1212 and the second heating circuit 1222 do not need to occupy the heating area of ​​each other, making the heating element 10 heat up more evenly, thereby improving reliability.

[0048] Furthermore, the arrangement of the first heating line 1212 on the first substrate 1211 and the arrangement of the second heating line 1222 on the second substrate 1221 increases the heating area of ​​the first heating line 1212 on the first substrate 1211 and the heating area of ​​the second heating line 1222 on the second substrate 1221, resulting in more uniform heating of the heating element 10 and thus improving the heating uniformity of the hair processing device 100. At the same time, increasing the heating area of ​​the first heating line 1212 on the first substrate 1211 and the heating area of ​​the second heating line 1222 on the second substrate 1221 reduces the power per unit area, improves reliability, and also makes the heating more uniform.

[0049] In some embodiments, the heating element 10 includes at least three insulating layers 11 and at least two heating layers 12. The at least three insulating layers 11 include at least one first insulating layer 111, at least one second insulating layer 112, and at least one third insulating layer 113.

[0050] The number of insulating layers 11 in the heating element 10 may include, but is not limited to, three, four, five, six, or seven or more layers. The number of first insulating layers 111, second insulating layers 112, and third insulating layers 113 in at least three insulating layers 11 may be, but is not limited to, one, two, three, or four or more layers.

[0051] In other embodiments, the insulating layer 11 in the heating element 10 may further include at least one nth insulating layer. n may be greater than or equal to four. At least one first insulating layer 111, at least one second insulating layer 112, at least one third insulating layer 113, and at least one nth insulating layer are arranged sequentially in a vertical order.

[0052] The number of heating layers 12 in the heating element 10 may include, but is not limited to, two, three, four, or more than five layers. At least two heating layers 12 include a first heating layer 121 and a second heating layer 122. In other embodiments, the at least two heating layers 12 may also include, but is not limited to, an m-th heating layer. m may be greater than or equal to three. The first heating layer 121, the second heating layer 122, and the m-th heating layer are arranged sequentially, one above the other.

[0053] At least one first insulating layer 111 is located above the first heating layer 121. At least one second insulating layer 112 is located below the first heating layer 121. The at least one first insulating layer 111, the first heating layer 121, and the at least one second insulating layer 112 are stacked sequentially. The at least one second insulating layer 112 is located above the second heating layer 122. At least one third insulating layer 113 is located below the second heating layer 122. The at least one second insulating layer 112, the second heating layer 122, and the at least one third insulating layer 113 can be stacked sequentially.

[0054] The heating element 10 described above may have at least three insulating layers 11 and at least two heating layers 12 in different forms.

[0055] In some embodiments, the first sub-heating element 13 further includes a first insulating layer 111 and a second insulating layer 112. A first heating layer 121 is stacked between the first insulating layer 111 and the second insulating layer 112. The second sub-heating element 14 further includes another second insulating layer 112 and a third insulating layer 113. A second heating layer 122 is stacked between the other second insulating layer 112 and the third insulating layer 113. The second insulating layers 112 and 112 are stacked and connected together.

[0056] The heating element 10 may include at least two sub-heating elements (not shown in the figure). Multiple sub-heating elements are stacked. The number of sub-heating elements may be, but is not limited to, two, three, or more than four. Adjacent sub-heating elements are sequentially stacked and connected. The connection method may be, but is not limited to, bonding. Bonding methods may include, but are not limited to, AB glue (AB Glue). In this embodiment, the heating element 10 includes two sub-heating elements, such as a first sub-heating element 13 and a second sub-heating element 14. The first sub-heating element 13 and the second sub-heating element 14 are bonded together.

[0057] When the first sub-heating element 13 and the second sub-heating element 14 are stacked one on top of the other, they are arranged from top to bottom as follows: a first insulating layer 111, a first heating layer 121, a second insulating layer 112, another second insulating layer 112, a second heating layer 122, and a third insulating layer 113. There are two layers of second insulating layer 112 between the first heating layer 121 and the second heating layer 122. The two layers of second insulating layer 112 are stacked and connected, such as by bonding.

[0058] For example, the heating element 10 includes three sub-heating elements stacked together, such as a first insulating layer 111, a first heating layer 121, a second insulating layer 112, another second insulating layer 112, a second heating layer 122, a third insulating layer 113, another first insulating layer 111, a third heating layer, and yet another second insulating layer 112, etc. The heating element 10 may also include four or more sub-heating elements, which will not be elaborated here, as long as the corresponding heating circuits are covered on the substrate, the specific number of its sub-heating elements is not limited.

[0059] By stacking at least two sub-heating elements, not only is the structure of the heating element itself simplified, but the installation process is also simplified, and costs are saved.

[0060] In some embodiments, the first heating circuit 1212 includes a first heating wire 12121. The second heating circuit 1222 includes a second heating wire 12221. The first arrangement structure of the first heating wire 12121 on the first substrate 1211 and the second arrangement structure of the second heating wire 12221 on the second substrate 1221 are the same. The first heating wire 12121 and the second heating wire 12121 are made of different materials.

[0061] The first and second arrangement structures are identical, meaning the width, length, and meandering arrangement of the first heating wire 12121 on the first substrate 1211 are the same as the width, length, and meandering arrangement of the second heating wire 12221 on the second substrate 1221. The materials of the first heating wire 12121 and the second heating wire 12221 are different, but this is not specified here.

[0062] By limiting the first and second arrangement structures to be the same, and specifying the materials of the first heating wire 12121 and the second heating wire 12221, the heating uniformity of the first heating layer 121 or the second heating layer 122 in the heating body 10 can be further improved.

[0063] The aforementioned first heating circuit 1212 further includes two first heating ends 12122. Both ends of the first heating wire 12121 are respectively connected to the first heating ends 12122. The second heating circuit 1222 further includes two second heating ends 12222. Both ends of the second heating wire 12221 are respectively connected to the second heating ends 12222. The two first heating ends 12122 are connected to corresponding connection ends. The two second heating ends 12222 are connected to corresponding connection ends. The connection ends are connected to the operating voltage, etc.

[0064] Specifically, notches 131 are respectively provided on both sides of one end of the upper first sub-heating element 13. Two first heating ends 12122 are connected to both sides of one end of the surface of the lower second sub-heating element 14. Two second heating ends 12222 are connected to the middle of one end of the surface of the lower second sub-heating element 14. The two first heating ends 12122 are located between the two second heating ends 12222 and are arranged in a row. Through the above limitation, it is convenient for the first sub-heating element 13 and the second sub-heating element 14 in the heating element 10 to be connected to the corresponding working voltage, etc.

[0065] Please see Figure 9 as well as Figure 10 , Figure 9 This is a schematic diagram of the structure of the first heating layer in the second embodiment of the heating element of this application; Figure 10 This is a schematic diagram of the structure of the second heating layer in the second embodiment of the heating element of this application. (Combined with...) Figures 1 to 8 In some embodiments, the first sub-heating element 13 includes a first insulating layer 111; the second sub-heating element 14 includes a third insulating layer 113; the first heating layer 121 is stacked between the first insulating layer 111 and the second insulating layer 112, and the second heating layer 122 is stacked between the second insulating layer and the third insulating layer 113.

[0066] A second insulating layer 112 is provided between the first heating layer 121 and the second heating layer 122. The second insulating layer 112 can separate the first heating layer 121 and the second heating layer 122. That is, the heating element 10 includes, from top to bottom, a first insulating layer 111, a first heating layer 121, a second insulating layer 112, a second heating layer 122, and a third insulating layer 113, etc.

[0067] Through the combined action of the three insulating layers 11 and the two heating layers 12, not only is the heating area of ​​the first heating line 1212 on the first substrate 1211 and the heating area of ​​the second heating line 1222 on the second substrate 1221 increased, thus improving the heating uniformity of the heating element 10; but it also simplifies the number of heating elements 10 and saves costs.

[0068] In other embodiments, the heating element 10 includes a first insulating layer 111, a first heating layer 121, a second insulating layer 112, a second heating layer 122, a third insulating layer 113, a third heating layer, and a fourth insulating layer 11, etc., which will not be described in detail here.

[0069] In some embodiments, the first heating circuit 1212 includes a first heating wire 12121 and first heating ends 12122 connected to both ends of the first heating wire 12121. The second heating circuit 1222 includes a second heating wire 12221 and second heating ends 12222 connected to both ends of the second heating wire 12221. The two second heating ends 12222 are located between the two first heating ends 12122 and are arranged in a row. The first heating wire 12121 covers the surface of the first substrate 1211 through a first arrangement structure. The second heating wire 12221 passes through the first substrate 1211 and covers the second substrate 1221 through a second arrangement structure.

[0070] The first heating wire 12121 has one end connected to a first heating end 12122, and the other end connected to another first heating end 12122. The first heating wire 12121 and the two first heating ends 12122 are integrally formed or fixedly connected. The second heating wire 12221 has one end connected to a second heating end 12222, and the other end connected to another second heating end 12222. The second heating wire 12221 and the two second heating ends 12222 are integrally formed or fixedly connected. The two first heating ends 12122 are connected to corresponding first connecting ends. The two second heating ends 12222 are connected to corresponding second connecting ends. The first connecting ends are connected to the battery module 24; the second connecting ends are connected to the first power interface 25. The two second heating ends 12222 are located between the two first heating ends 12122 and are arranged in a row.

[0071] The two second heating ends 12222 and the two first heating ends 12122 are located at the end of the surface of the first substrate 1211 and are arranged in a row. The two ends of the second heating wire 12221 pass through the first substrate 1211 and are covered by the second arrangement structure.

[0072] By integrating two second heating ends 12222 and two first heating ends 12122 on the same surface of the first substrate 1211, and the second heating wire 12221 passing through the first substrate 1211 and covering the second substrate 1221, different heating circuits are installed on the corresponding substrates.

[0073] Specifically, two vias 12111 are formed on the first substrate 1211. One end of the second heating wire 12221 passes through one via 12111, and the other end of the second heating wire 12221 passes through the other via 12111. By providing the vias 12111, it is convenient for the second heating wire 12221 to pass through, etc.

[0074] The first substrate 1211 and the second substrate 1221 can be two substrates, with a second insulating layer 112 disposed between them. The first heating wire 12121 is disposed on a side of one substrate facing away from the second insulating layer 112, and the second heating wire 12221 is disposed on a side of the other substrate facing the second insulating layer 112. Alternatively, the first heating wire 12121 is disposed on a side of one substrate facing away from the second insulating layer 112, and the second heating wire 12221 is disposed on a side of the other substrate facing away from the second insulating layer 112.

[0075] Alternatively, the first substrate 1211 and the second substrate 1221 may be the same substrate, with the first heating wire 12121 disposed on the upper surface of the substrate and the second heating wire 12221 disposed on the lower surface of the substrate.

[0076] In some embodiments, the first arrangement structure of the first heating wire 12121 on the first substrate 1211 and the second arrangement structure of the second heating wire 12221 on the second substrate 1221 are different. The first heating wire 12121 and the second heating wire 12221 are made of the same material.

[0077] Where the materials of the first heating wire 12121 and the second heating wire 12221 are the same, the first arrangement structure and the second arrangement structure are different. Wherein, one of the following three aspects of the first heating wire 12121 on the first substrate 1211, and one of the following three aspects of the second heating wire 12221 on the second substrate 1221, is different.

[0078] For example, the width of the first heating wire 12121 on the first substrate 1211 and the width of the second heating wire 12221 on the second substrate 1221 are the same, wherein the length and meandering arrangement of the first heating wire 12121 on the first substrate 1211 are different from the length and meandering direction of the second heating wire 12221 on the second substrate 1221.

[0079] Alternatively, as in this embodiment, the width, length, and meandering arrangement of the first heating wire 12121 on the first substrate 1211 are different from those of the second heating wire 12221 on the second substrate 1221. For example, the width of the first heating wire 12121 on the first substrate 1211 is greater than the width of the second heating wire 12221 on the second substrate 1221; simultaneously, the length of the first heating wire 12121 on the first substrate 1211 is less than the length of the second heating wire 12221 on the second substrate 1221; furthermore, the meandering density of the first heating wire 12121 on the first substrate 1211 is less than the meandering density of the second heating wire 12221 on the second substrate 1221. Other combinations of the above-mentioned arrangement of the first heating wire 12121 on the first substrate 1211 and the arrangement of the second heating wire 12221 on the second substrate 1221 can also be used, which will not be elaborated here.

[0080] By limiting the first and second arrangement structures to be different, and by making the first heating wire 12121 and the second heating wire 12221 different in material, it is possible to ensure that the first heating line 1212 is fully covered by the first substrate 1211 and the second heating line 1222 is fully covered by the second substrate 1221, thereby improving the heating uniformity of the first sub-heating body 13 and / or the second sub-heating body 14 in the heating body 10.

[0081] In some embodiments, the resistance of the first heating circuit 1212 is greater than or equal to 0.6 ohms and less than or equal to 0.9 ohms. The resistance of the second heating circuit 1222 is greater than or equal to 6 ohms and less than or equal to 9 ohms.

[0082] The resistance of the first heating circuit 1212 can be, but is not limited to, 0.6 ohms, 0.65 ohms, 0.67 ohms, 0.7 ohms, 0.75 ohms, 0.78 ohms, 0.8 ohms, 0.85 ohms, 0.89 ohms, and 0.9 ohms. The resistance of the second heating circuit 1222 can be, but is not limited to, 6 ohms, 6.5 ohms, 6.9 ohms, 7 ohms, 7.5 ohms, 7.8 ohms, 8 ohms, 8.3 ohms, 8.5 ohms, and 9 ohms.

[0083] By limiting the resistance values ​​of the first heating circuit 1212 and the second heating circuit 1222, different operating voltage requirements can be met to satisfy the different voltage usage needs of the hair processing equipment 100.

[0084] In some embodiments, the first heating circuit 1212 and / or the second heating circuit 1222 include at least one of a metal heating circuit and an alloy heating circuit; and / or, the insulating layer 11 of the first sub-heating body 13 and / or the insulating layer 11 of the second sub-heating body 14 includes a polyimide film.

[0085] The first heating circuit 1212 may include at least one of a metal heating circuit (not shown in the figure) and an alloy heating circuit (not shown in the figure). And / or, the second heating circuit 1222 may include at least one of a metal heating circuit and an alloy heating circuit. The metal heating circuit may be, but is not limited to, copper. The copper may be, but is not limited to, alloy copper, cupronickel, and brass. The alloy heating circuit may be, but is not limited to, stainless steel, etc.

[0086] In other embodiments, the first heating circuit 1212 and the second heating circuit 1222 can be made of other materials, as long as they can generate heat, and are not limited here. In addition, the materials of the first heating circuit 1212 and the second heating circuit 1222 can be the same or different, depending on the actual situation.

[0087] By limiting the materials of the first heating circuit 1212 and the second heating circuit 1222, the heating element 10 can generate heat and meet different working voltage requirements.

[0088] The insulating layer 11 may include a polyimide film. The polyimide film may be a PI film. The polyimide film has properties such as heat resistance and electrical insulation. For example, the first insulating layer 111, the second insulating layer 112, and the third insulating layer 113 may be PI films.

[0089] Compared to existing PTC (Positive Temperature Coefficient) heating elements and MCH (Metal Ceramics Heater) heating elements, in this embodiment, the first heating circuit 1212 and the second heating circuit 1222 in the heating element 10 are both metal heating circuits, and the insulation layer 11 is a PI film. Therefore, the heating element 10 has the advantages of low temperature coefficient and high power-to-weight ratio, and can provide better heating effect near the operating temperature.

[0090] The first heating circuit 1212, arranged in a first arrangement, covers the surface of the first substrate 1211, and the second heating circuit 1222, arranged in a second arrangement, covers the surface of the second substrate 1221. The principle behind improving the heating uniformity of the heating element 10 is as follows: According to Fourier's law, the formula for calculating the heat conduction rate Q is: Q = -k·A·ΔT / Δx. k is the thermal conductivity of the material; A is the heat conduction area; Δx is the material thickness; and ΔT is the temperature difference. According to the definition of thermal resistance: R = ΔT / Q. Substituting Fourier's law formula into the definition of thermal resistance, we obtain R = Δx / kA. That is, the thermal resistance R is inversely proportional to the heat conduction area A. When the heat conduction area A decreases, the heat conduction rate Q decreases.

[0091] Therefore, in order to improve the thermal conductivity Q, the heat-generating area should be made as large as possible, such as... Figure 6 , Figure 7 , Figure 9 as well as Figure 10 As shown, the first heating line 1212 in the heating element 10 can be extended to the entire first substrate 1211; the second heating line 1222 can be extended to the entire second substrate 1221, thereby improving the thermal conductivity and thus improving the uniformity of heating.

[0092] The terms "first," "second," and "third" in this application are for descriptive purposes only and should not be construed as indicating the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of those features. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications will change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. A process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0093] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A hair treatment device, characterized in that, include: The main body of the device includes a comb tooth section and a grip section, wherein the comb tooth section is disposed at the end of the grip section; A heating element is disposed within the grip portion and located at the bottom of the comb portion. The heating element includes at least a first sub-heating element and a second sub-heating element stacked on the first sub-heating element. The control unit is disposed on the grip portion; A first switching switch is connected between the first sub-heating element and the battery module, and the first switching switch is connected to the control unit; The second switch is connected between the second sub-heating element and the first power interface, and the second switch is connected to the control unit.

2. The hair treatment equipment according to claim 1, characterized in that, The device includes a charging management unit disposed on the grip portion, which is connected to a second power interface and between the first switching switch and the battery module.

3. The hair treatment equipment according to claim 1, characterized in that, The first sub-heating element includes a first heating layer, the first heating layer includes a first substrate and a first heating circuit, the first heating circuit is covered on the surface of the first substrate by a first arrangement structure, and the first heating circuit is connected to the battery module; The second sub-heating element includes a second heating layer, which includes a second substrate and a second heating circuit. The second heating circuit is spread across the surface of the second substrate through a second arrangement structure, and the second heating circuit is connected to the first power interface.

4. The hair treatment equipment according to claim 3, characterized in that, The first sub-heating element further includes a first insulating layer and a second insulating layer, with the first heating layer stacked between the first insulating layer and the second insulating layer; The second sub-heating element also includes another second insulating layer and a third insulating layer, with the second heating layer stacked between the other second insulating layer and the third insulating layer; The second insulating layer and the other second insulating layer are stacked together.

5. The hair treatment device according to claim 4, characterized in that, The first heating circuit includes a first heating wire, and the second heating circuit includes a second heating wire. The first arrangement structure of the first heating wire on the first substrate and the second arrangement structure of the second heating wire on the second substrate are the same; wherein the first heating wire and the second heating wire are made of different materials.

6. The hair treatment device according to claim 3, characterized in that, The first sub-heating element includes a first insulating layer; the second sub-heating element includes a third insulating layer; the first heating layer is stacked between the first insulating layer and the second insulating layer, and the second heating layer is stacked between the second insulating layer and the third insulating layer.

7. The hair treatment device according to claim 6, characterized in that, The first heating circuit includes a first heating wire and a first heating end connected to both ends of the first heating wire. The second heating circuit includes a second heating wire and a second heating end connected to both ends of the second heating wire. The two second heating ends are located between the two first heating ends and are arranged in a row. The first heating wire covers the surface of the first substrate through the first arrangement structure. The second heating wire passes through the first substrate and covers the second substrate through the second arrangement structure.

8. The hair treatment device according to claim 7, characterized in that, The first arrangement structure of the first heating wire on the first substrate and the second arrangement structure of the second heating wire on the second substrate are different; wherein, the first heating wire and the second heating wire are made of the same material.

9. The hair treatment apparatus according to any one of claims 3 to 8, characterized in that, The resistance of the first heating circuit is greater than or equal to 0.6 ohms and less than or equal to 0.9 ohms; the resistance of the second heating circuit is greater than or equal to 6 ohms and less than or equal to 9 ohms.

10. The hair treatment apparatus according to any one of claims 3 to 8, characterized in that, The first heating circuit and / or the second heating circuit include at least one of a metal heating circuit and an alloy heating circuit; And / or, the insulating layer of the first sub-heating element and / or the insulating layer of the second sub-heating element comprises a polyimide film.

Images