Heating device and hair care equipment

By using a spiral heating element, the problems of uneven heating and low efficiency in existing hair care devices are solved, achieving miniaturization and high-efficiency heating, adapting to different voltage standards, and improving the heating efficiency and reliability of the device.

CN223859266UActive Publication Date: 2026-01-30GUANGDONG SHANSI TECH CO LTD
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Patent Information

Application Number
CN202423287677.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-01-30
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

The heating element of existing hair care devices is mainly made of wound heating wires, which results in a complex mica frame structure, large size, uneven heating, and low efficiency.

Method used

The heating device adopts a spiral structure, using a flexible and high-temperature resistant thermally conductive substrate, combined with an insulating layer and a conductive film. The spiral design forms an air passage, and the circuit realizes series and parallel switching to adapt to different voltage standards. The bracket assembly is used to fix the spiral.

Benefits of technology

It achieves miniaturization, uniform heating, and high efficiency of the heating device, adapts to different voltage requirements, and improves the heating efficiency and reliability of hair care equipment.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to a heating device and hair care equipment. The heating device comprises a base material, one side edge of the base material serves as the axis, a spiral body is formed on the axis in a spiral extending mode, and the section of the spiral body is in a spiral line shape; the two insulating layers are arranged on the two side surfaces of the base material; the conductive film is arranged on the insulating layer on the outer side of the spiral body; the at least two wire interfaces are respectively arranged at the two ends of the conductive film; the two support assemblies are erected at the two ends of the spiral body respectively. The heating body is of a spiral structure, so that the size is smaller, fluid can flow through the distance between the spiral pieces, heating is more uniform, the fluid heating efficiency is higher, a circuit of the heating device can be switched between a parallel circuit and a series circuit, the heating device can adapt to voltages of different countries, and the heating body is more universal.
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Description

TECHNICAL FIELD

[0001] The utility model relates to hair care equipment technical field, especially a kind of heating device and hair care equipment. BACKGROUND

[0002] Generally, hair care equipment, especially hair dryer, fluid is sucked into the air duct of the body by motor and fan, and the fluid can be heated by heating body before leaving the body. Most of the heating bodies on the market are mainly wound by heating wires, and the heating wires are installed outside the mica holder. The mica holder structure is complex, bulky, fluid heating is not uniform, and the heating efficiency is relatively low. SUMMARY

[0003] Therefore, it is necessary to provide a heating device and hair care equipment with relatively high heating efficiency and relatively uniform heating.

[0004] A heating device comprises a base material, the base material is taken as an axis with one side edge, and a spiral body is formed by extending spirally on the axis, and the cross-sectional shape of the spiral body is a spiral line; two insulation layers, the two insulation layers are respectively arranged on the two side surfaces of the base material; a conductive film, the conductive film is arranged on the outer insulation layer of the spiral body; at least two wire interfaces, the at least two wire interfaces are respectively arranged on the two ends of the conductive film; and at least two support assemblies, the at least two support assemblies are respectively arranged on the two ends of the spiral body.

[0005] The utility model discloses a kind of heating devices, the material used in base material is elastic and high-temperature-resistant material with good heat conductivity, such as spring steel etc., the state of base material unfolding is sheet, base material is with one side relatively short as axis, and it is wound along the axis to form helix, the interface shape of helix is spiral line.Insulating material is coated on the two sides of base material, that is, insulating layer is formed on the two sides of base material respectively, and conductive film is also set in the insulating layer of side away from axis, heat is generated on insulating layer when conductive film is energized, insulating layer uses material with good heat conduction performance, with the effect of enlarging heat transfer area, and heat is effectively transferred into base material, so as to generate heat in a certain range of space.In the two ends of conductive film, wire interface is respectively set, so that conductive film can be electrically connected with external power supply, when wire interface is only set in the two ends of conductive film, it is series circuit;When wire interface is set in the two ends of conductive film, and one wire interface is also set in a position between the two ends, it is shunt circuit, the circuit of conductive film can be divided into at least two groups of sub-circuits, and series connection or shunt connection can be carried out between sub-circuits to realize switching between different resistance values, so as to adapt to voltage standards between different countries, can save cost, for example, when low voltage such as (100V-125V) is used, shunt connection method is adopted;When high voltage (220V-250V) is used, series connection method is adopted.The support assembly is respectively arranged in the two ends of helix cross section direction, for fixing the winding state of helix and the interval of helix, to maintain the stability of heating device.

[0006] The heating body of the present application adopts a spiral structure, which makes the volume smaller, the distance between the spiral sheets can flow fluid, which makes the heating more uniform and the heating fluid efficiency higher, and the circuit of the heating device can be switched between parallel and series circuits, thereby adapting to different voltages in different countries, making the heating body more versatile.

[0007] In some embodiments, the adjacent two walls of the helix are spaced apart to form an air passing channel.

[0008] The above-mentioned heating device is further limited that: the helix formed after winding of the base material is composed of a plurality of adjacent spiral sheets, the distance between adjacent spiral sheets is the same, forming an air passing channel, and fluid can flow through the air passing channel to receive heat transfer, so that the passing fluid forms hot air, and multiple air passing channels improve the heating efficiency of the heating device, and the distance between the spiral sheets can be adjusted to change the width of the air passing channel and change the heating effect.

[0009] In some embodiments, the support assembly is in the shape of a cross, and a plurality of limiting openings are formed in the side of the support assembly close to the helix, and the limiting openings are matched with the walls of the helix.

[0010] In the embodiment, the bracket assembly uses a cross shape to make the structure more stable and save material costs. A plurality of limiting openings are formed on the bracket assembly to be clamped and fixed with the spiral pieces of the spiral body, so that the distance between the spiral pieces is not changed during use, and the use experience is affected.

[0011] In some embodiments, the conductive film is in a line shape and repeatedly extends on the outer insulating layer of the spiral body.

[0012] The heating device has the advantages that the conductive film is repeatedly extended in a line shape on the insulating layer on the side of the spiral body away from the shaft, so that the coverage area of the conductive film on the insulating layer is increased, and the heating efficiency is improved.

[0013] In some embodiments, one wire interface is arranged on the conductive film away from the two ends of the conductive film.

[0014] In the embodiment, one wire interface is arranged on the conductive film away from the two ends of the conductive film, and the two wire interfaces are matched, so that the circuit is a parallel circuit, and the voltage requirements of different countries are met.

[0015] A hair care device includes a main body, a handle, a heating device, a fan, and an air outlet. The handle is arranged on the main body, and a plurality of air inlets are arranged on an end of the handle away from the main body. The heating device is arranged in the main body close to the air outlet. The fan is arranged in the handle. The inner cavities of the main body and the handle are communicated to form a main air duct. The air outlet and the air inlets are communicated with the main air duct.

[0016] The hair care device is provided with the handle, so that the two inner cavities are communicated to form the main air duct. The hair care device of the embodiment is air-inlet of the handle. The air outlet is arranged on the main body, and the plurality of air inlets are arranged on the handle. The air outlet, the main air duct, and the air inlets are communicated in sequence. The fan is arranged on the handle, and the heating device is arranged on the main body. Therefore, the weight distribution of the hair care device is more uniform, the holding feeling is better, the volume of the main body is reduced, and the internal space of the handle is fully utilized.

[0017] In some embodiments, the handle includes a handle body and a filter screen. The handle body is arranged on the main body, and the filter screen is arranged on an end of the handle body away from the main body.

[0018] In some embodiments, the filter screen is provided with a plurality of air inlets.

[0019] The hair care device has the advantages that the filter screen is arranged at the air inlet hole of the handle body, so that the large external particles are prevented from being sucked into the handle body by the air flow, the internal air duct is prevented from being blocked, and the internal components are prevented from being damaged, thereby improving the reliability of the hair care device.

[0020] A hair care device comprises a main body, an air outlet and an air inlet hole arranged on the main body, the air inlet hole and the air outlet are arranged on two end faces of the main body respectively, and the air inlet hole, the main air duct and the air outlet are sequentially communicated; a handle arranged on the main body; a heating device as described above arranged in the main body close to one end of the air outlet; and a fan arranged on the main body, the fan being located at the main air duct close to the air inlet hole.

[0021] The hair care device of the third aspect of the present application comprises a handle arranged on a main body, an air outlet and an air inlet hole arranged on two ends of the main body respectively, and a main air duct arranged in the main body, the air inlet hole, the main air duct and the air outlet are sequentially communicated, the hair care device of the embodiment is air-inlet of the main body, and the heating device and the fan are arranged in the main body, the spiral heating device is arranged, the heating efficiency of the hair care device is improved, the air outlet temperature is more uniform, and the user experience is better. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a perspective view of the heating device of the utility model;

[0023] Figure 2 It is a top cross-sectional view of the heating device of the utility model;

[0024] Figure 3 It is an expanded cross-sectional view of the heating device of the utility model;

[0025] Figure 4 It is a cross-sectional view of the hair care device of the utility model;

[0026] Figure 5 It is a cross-sectional view of the hair care device of the utility model.

[0027] Corresponding relationship between the reference signs and the component names is as follows:

[0028] 1 base material, 10 spiral body, 101 air passage;

[0029] 2 insulating layer; 3 conductive film; 4 wire interface;

[0030] 5 support assembly, 501 limiting port;

[0031] 100 main body, 1001 air outlet, 1100 main air duct;

[0032] 200 handle, 2001 air inlet, 210 handle body, 220 filter;

[0033] 300 heating element; 400 fan. Detailed Implementation

[0034] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0036] The heating device and hair care equipment of this utility model are described below with reference to the accompanying drawings.

[0037] like Figures 1 to 3 As shown, a heating device includes: a substrate 1, wherein the substrate 1 extends spirally along one side as an axis to form a spiral body 10, the spiral body 10 having a spiral cross-sectional shape; two insulating layers 2, the two insulating layers 2 being respectively disposed on both sides of the substrate 1; a conductive film 3, the conductive film 3 being disposed on the outer insulating layer 2 of the spiral body 10; at least two wire interfaces 4, the at least two wire interfaces 4 being respectively disposed on both ends of the conductive film 3; and at least two support assemblies 5, the at least two support assemblies 5 being respectively mounted on both ends of the spiral body 10.

[0038] The utility model discloses a kind of heating devices, substrate 1 so the material used is elastic and high-temperature-resistant material with good heat conductivity, such as spring steel etc., substrate 1 is in the state of unfolding is sheet, substrate 1 with one side relatively short side length as axis, and along the axis is wound to form helix 10, the interface shape of helix 10 is spiral line.In the both sides of substrate 1, insulating material is coated, that is, insulating layer 2 is formed in the both sides of substrate 1 respectively, while still setting conductive film 3 in the side insulating layer 2 away from axis, when conductive film 3 is energized, heat will be generated on insulating layer 2, insulating layer 2 uses material with good heat conduction performance, with the effect of enlarging heat transfer area, and effectively transfer heat to substrate, so as to generate heat in a certain range of space.In the both ends of conductive film 3, wire interface 4 is respectively set, so that conductive film 3 can be electrically connected with external power supply, when wire interface 4 is only set in the both ends of conductive film 3, it is series circuit;When wire interface 4 is set in the both ends of conductive film 3, while also setting a wire interface 4 in a position between the both ends, it is shunt circuit, the circuit of conductive film 3 can be divided into at least two groups of sub-circuits, and the sub-circuits can be connected in series or parallel to realize switching between different resistance values, so as to adapt to voltage standards between different countries, can save cost, for example, when using low voltage such as 100V-125V, adopt parallel connection method;When using high voltage 220V-250V, adopt series connection method.Through setting support assembly 5 in the both ends of the cross section direction of helix 10 respectively, the winding state and the pitch of helix of helix 10 are fixed, and the stability of heating device is maintained.

[0039] The heating body of the present application adopts a spiral structure, which makes the volume smaller, the distance between the spiral sheets can flow fluid, which makes the heating more uniform and the heating fluid efficiency higher, and the circuit of the heating device can be switched between parallel and series circuits, so as to adapt to the voltage of different countries, making the heating body more versatile.

[0040] As shown in Figure 2 , the adjacent two walls of the helix 10 are spaced apart to form an air passage 101.

[0041] The above-mentioned heating device is further limited that: the helix 10 formed after winding of substrate 1 is composed of a plurality of adjacent spiral sheets, the distance between adjacent spiral sheets is the same, forming an air passage 101, fluid can flow through the air passage 101, thereby receiving heat transfer, making the passing fluid form hot air, and a plurality of air passages 101 improve the heating efficiency of the heating device, and the distance between the spiral sheets can be adjusted to change the width of the air passage 101, so as to change the heating effect.

[0042] As shown in Figure 1 and Figure 2As shown, the bracket assembly 5 is in the shape of a cross, and a plurality of limiting openings 501 are formed on one side of the bracket assembly 5 close to the spiral body 10, and the limiting openings 501 are matched with the surface of the spiral body 10.

[0043] In the embodiment, the bracket assembly 5 uses the cross shape to make the structure more stable, and meanwhile, the material cost is saved. The plurality of limiting openings 501 are formed on the bracket assembly 5, which are used for clamping and fixing the spiral blades of the spiral body 10, so as to avoid the change of the distance between the spiral blades of the spiral body 10 in the use process, and affect the use experience.

[0044] As shown in Figure 1 and Figure 3 , the conductive film 3 is in the shape of a line, and the conductive film 3 repeatedly extends on the outer insulating layer 2 of the spiral body 10.

[0045] The heating device is also limited that the conductive film 3 is arranged on the insulating layer 2 away from the axis of the spiral body 10, and the conductive film 3 repeatedly extends on the insulating layer 2 in the shape of a line. In this way, the coverage area of the conductive film 3 on the insulating layer 2 is increased, so as to improve the heating efficiency.

[0046] As shown in Figure 1 , one wire interface 4 is arranged on the conductive film 3 away from the two ends of the conductive film 3.

[0047] In the embodiment, one wire interface 4 is arranged on the conductive film 3 away from the two ends, and the two wire interfaces 4 are matched, so that the circuit is a parallel circuit, thereby adapting to the voltage requirements of different countries.

[0048] As shown in Figure 4 , a hair care device includes a main body 100, a handle 200, a heating device 300, and a fan 400. The main body 100 is provided with an air outlet 1001. The handle 200 is arranged on the main body 100, and a plurality of air inlet holes 2001 are formed on the end of the handle 200 away from the main body 100. The heating device 300 is arranged in the main body 100 close to the air outlet 1001. The fan 400 is arranged in the handle 200. The inner cavities of the main body 100 and the handle 200 are communicated to form a main air duct 1100, and the air outlet 1001 and the air inlet holes 2001 are respectively communicated with the main air duct 1100.

[0049] The application discloses a hair care device from a second aspect. A handle 200 is arranged on a main body 100, so that two inner cavities are communicated to form a main air duct 1100. The hair care device of the embodiment is air-inlet of the handle. An air outlet 1001 is arranged on the main body 100, and a plurality of air inlet holes 2001 are arranged on the handle 200. The air outlet 1001, the main air duct 1100 and the air inlet holes 2001 are sequentially communicated. A fan 400 is arranged on the handle 200, and a heating device 300 is arranged on the main body 100, so that the weight distribution of the hair care device is more uniform, the holding feeling is better, the volume of the main body 100 can be reduced, and the internal space of the handle 200 is fully utilized.

[0050] As shown in Figure 4 The handle 200 comprises a handle body 210 and a filter screen 220. The handle body 210 is arranged on the main body 100, and the filter screen 220 is arranged at an end of the handle body 210 away from the main body 100.

[0051] As shown in Figure 4 A plurality of air inlet holes 2001 are arranged on the filter screen 220.

[0052] The hair care device is further limited as follows: by arranging the filter screen 220 at the air inlet holes 2001 of the handle body 210, the external particles with large volume can be prevented from being sucked into the handle 200 by the airflow, so as to avoid the blockage of the internal air duct or the damage of the internal elements, and the reliability of the hair care device is improved.

[0053] As shown in Figure 5 A hair care device comprises a main body 100, an air outlet 1001, air inlet holes 2001 and a main air duct 1100 are arranged on the main body 100. The air outlet 1001 and the air inlet holes 2001 are arranged on two end faces of the main body 100 respectively. The air inlet holes 2001, the main air duct 1100 and the air outlet 1001 are sequentially communicated. A handle 200 is arranged on the main body 100. The heating device 300 is arranged in the main body 100 close to one end of the air outlet 1001. A fan 400 is arranged on the main body 100, and the fan 400 is located at the main air duct 1100 close to the air inlet holes 2001.

[0054] The application discloses a hair care device from a third aspect, a handle 200 is arranged on a main body 100, two ends of the main body 100 are respectively provided with an air outlet 1001 and an air inlet hole 2001, a main air duct 1100 is further arranged in the main body 100, the air inlet hole 2001, the main air duct 1100 and the air outlet 1001 are sequentially communicated, the hair care device of the embodiment is main body air inlet, a heating device 300 and a fan 400 are arranged in the main body 100, the heating efficiency of the hair care device is improved by arranging the spiral heating device 300, the air outlet temperature is more uniform, and the user experience is better.

[0055] The technical features of the above-described embodiments can be combined in any manner, and to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present application.

[0056] The above-described embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, but it should not be understood as the limitation of the scope of the present application patent. It should be pointed out that, for ordinary skilled in the art, on the premise of not departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A heat generating device, characterized by, It includes: a base material (1) which is taken as an axis with one side and extends spirally on the axis to form a spiral body (10), the cross-sectional shape of the spiral body (10) being a spiral line; two insulating layers (2) which are respectively arranged on the two side surfaces of the base material (1); a conductive film (3) which is arranged on the outer insulating layer (2) of the spiral body (10); at least two wire interfaces (4) which are respectively arranged on the two ends of the conductive film (3); at least two support assemblies (5) which are respectively arranged on the two ends of the spiral body (10).

2. The heat generating device according to claim 1, characterized in that The adjacent two walls of the spiral body (10) are spaced apart to form an air passage (101).

3. The heat generating device according to claim 1, wherein The support assembly (5) is in the shape of a cross, a plurality of limiting openings (501) are formed in the side of the support assembly (5) close to the spiral body (10), and the limiting openings (501) are matched with the wall of the spiral body (10).

4. The heat generating device of claim 1, wherein The conductive film (3) is in the shape of a line, and the conductive film (3) repeatedly extends on the outer insulating layer (2) of the spiral body (10).

5. The heat generating device according to claim 4, characterized in that One of the wire interfaces (4) is arranged at a position away from the two ends of the conductive film (3).

6. A hair care device, characterized in that It includes: a main body (100) in which an air outlet (1001) is formed; a handle (200) arranged on the main body (100), one end of the handle (200) away from the main body (100) being provided with a plurality of air inlet holes (2001); a heating device (300) as claimed in any one of claims 1-5, the heating device (300) being arranged in the main body (100) close to one end of the air outlet (1001); a fan (400) arranged in the handle (200); the inner cavity of the main body (100) and the inner cavity of the handle (200) are communicated to form a main air duct (1100), and the air outlet (1001) and the air inlet hole (2001) are respectively communicated with the main air duct (1100).

7. A hair care device according to claim 6, characterised in that, The handle (200) includes a handle body (210) and a filter screen (220), the handle body (210) is arranged on the main body (100), and the filter screen (220) is arranged at one end of the handle body (210) away from the main body (100).

8. A hair care device according to claim 7, characterised in that, A plurality of air inlet holes (2001) are formed in the filter screen (220).

9. A hair care device, characterized in that It includes: a main body (100) in which an air outlet (1001), an air inlet hole (2001) and a main air duct (1100) are formed, the air outlet (1001) and the air inlet hole (2001) being respectively formed in the two end surfaces of the main body (100), and the air inlet hole (2001), the main air duct (1100) and the air outlet (1001) being sequentially communicated; a handle (200) arranged on the main body (100); The heating device (300) according to any one of claims 1-5, wherein the heating device (300) is arranged in the main body (100) close to one end of the air outlet (1001); A fan (400) is arranged on the main body (100), and the fan (400) is located close to the air inlet hole (2001) of the main air duct (1100).