Electric heating curling iron

By combining a fan, heating element, and multiple heating elements, the problem of slow heating, uneven heat distribution, and slow heat dissipation of curling irons is solved, achieving rapid and uniform heating and fast heat dissipation, thus improving the user experience and safety.

CN223968780UActive Publication Date: 2026-03-06DONGGUAN BIDISCO ELECTRIC
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Patent Information

Application Number
CN202520125021.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2026-03-06
Estimated Expiration
2035-01-17

AI Technical Summary

Technical Problem

Existing curling irons suffer from problems such as slow heating, non-adjustable temperature, uneven surface heat, hot handle, and slow heat dissipation.

Method used

It adopts a combination design of fan, heating element, multiple heating elements and carbon sheet. The fan evenly distributes heat, and the temperature is controlled by thermostat and circuit board to achieve rapid heating and heat dissipation. The carbon sheet improves heat uniformity and reduces the temperature of the handle.

Benefits of technology

It achieves rapid and even heating of the curling iron surface, reduces the temperature of the handle, and dissipates heat quickly after use, improving the user experience and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of hairdressing electric appliances, and particularly relates to an electric heating curling iron which comprises a shell, the shell is composed of an upper handle and a lower handle, a fan and a circuit board are arranged in the shell, a first heating assembly is arranged in the shell, and a heating element is arranged in the first heating assembly. A first temperature controller is arranged at the other end of the heating element, the other end of the first temperature controller is connected with a first pct heating body, a first carbon plate is fixedly arranged on one side of the first pct heating body, a second temperature controller is arranged at the other end of the first pct heating body, and a first ceramic column is arranged outside the second temperature controller in a sleeving mode. The first ceramic column is sleeved with a second heating assembly, heat insulation heads are arranged at the two ends of the second heating assembly, a plurality of second pct heating bodies and second carbon plates are arranged between the two heat insulation heads, and second ceramic columns are arranged on the peripheries of the second pct heating bodies and the second carbon plates.
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Description

Technical Field

[0001] This utility model belongs to the field of hair styling appliance technology, specifically relating to an electric curling iron. Background Technology

[0002] Curling irons are common hair styling tools in daily life. To use them, users first heat the curling iron to a certain temperature, then wrap their hair around it and hold for a certain time to curl it – the whole process is very easy and simple. However, existing curling irons have many problems, such as slow heating (requiring preheating), inability to adjust the temperature according to different situations, uneven heat distribution leading to poor curling results, excessive heat at the handle, affecting the user experience and even causing burns, and slow heat dissipation after use. Utility Model Content

[0003] The purpose of this utility model is to provide an electric heating curling iron, which aims to solve the technical problems of existing curling irons, such as slow heating, non-adjustable temperature, uneven heat on the surface of the curling iron, hot handle, and slow heat dissipation after use.

[0004] To achieve the above objectives, this utility model provides an electric curling iron, characterized in that: it includes a shell, the shell being composed of an upper handle and a lower handle, a fan and a circuit board are provided inside the shell, a first heating assembly is provided inside the shell, the first heating assembly includes a heating element, the heating element is connected to the circuit board, a first thermostat is provided at the other end of the heating element, the other end of the first thermostat is connected to a first PCT heating element, a carbon sheet is fixedly provided on one side of the first PCT heating element, a second thermostat is provided at the other end of the first PCT heating element, a ceramic pillar is provided outside the first thermostat and the second thermostat, a second heating assembly is provided outside the ceramic pillar, heat insulation heads are provided at both ends of the second heating assembly, the heat insulation heads are fixedly connected to the ceramic pillar and the shell, a plurality of second PCT heating elements and carbon sheets are provided between the two heat insulation heads, and ceramic pillars are provided around the second PCT heating elements and carbon sheets.

[0005] Preferably, the upper handle and the lower handle are semi-circular with ventilated and breathable grid-like structures at both ends, forming a circular handle with a cavity in the middle.

[0006] Preferably, one end of the housing is provided with an electric wire, and the end of the housing with the electric wire is provided with a tail cover. The tail cover has a mesh structure. A fan is provided inside the housing near the tail cover and fixed inside the housing. A circuit board is provided on the other side of the fan and fixed inside the housing.

[0007] Preferably, the heating element is fixedly disposed in the handle, with one end connected to the circuit board and the other end flush with the end of the handle away from the wire.

[0008] Preferably, the first and second thermostats are provided with circular holes for airflow.

[0009] Preferably, the top of the second thermostat is provided with a heat insulation head.

[0010] Preferably, the ceramic column is disposed outside the first PCT heating element and the carbon sheet, and its two ends are respectively connected to two temperature controllers. The ceramic column has multiple protrusions inside and grooves formed on its outer surface.

[0011] Preferably, there are two heat insulation heads. The upper heat insulation head is sleeved around the second thermostat and the ceramic column and is fixedly connected to the second thermostat and the ceramic column. The lower heat insulation head is provided with a round hole for airflow. The lower heat insulation head is sleeved around the first thermostat and is located inside the handle. The lower heat insulation head is fixedly connected to the first thermostat and the handle.

[0012] Preferably, there are multiple second PCT heating elements. More preferably, there are two second PCT heating elements, which are disposed on the periphery of the ceramic column and are respectively arranged perpendicular to the first PCT heating element.

[0013] Preferably, there are multiple carbon plates, and more preferably, there are two carbon plates, which are disposed around the ceramic column and connected to the second pct heating element respectively.

[0014] The electric curling iron provided in this embodiment of the utility model has at least one of the following technical effects:

[0015] This utility model discloses an electric curling iron that, with the cooperation of a fan, heating element, multiple heating elements, and carbon sheets, can rapidly heat up the surface of the curling iron and distribute the heat evenly on the surface. The temperature of the curling iron can be adjusted under the control of a switch and a circuit board. With the cooperation of a fan, outer shell, first heating component, and second heating component, the temperature of the shell at the handle can be reduced. At the same time, the curling iron can be quickly cooled after use. Attached Figure Description

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

[0017] Figure 1 A side view of an electric curling iron provided for an embodiment of this utility model.

[0018] Figure 2 A partial view of an electric curling iron provided for an embodiment of this utility model.

[0019] Figure 3 A partial view of an electric curling iron provided for an embodiment of this utility model.

[0020] Figure 4 A partial view of an electric curling iron provided for an embodiment of this utility model.

[0021] Figure 5 A partial view of an electric curling iron provided in an embodiment of this utility model.

[0022] The following are the labeling elements in the figure:

[0023] 10—Outer shell 11—Upper handle 12—Lower handle 13—Wire 14—Tail cover 15—Fan

[0024] 16—Circuit board 17—Switch 18—LED light 19—Decorative ring 20—First heating component

[0025] 21—Heating element; 22—First temperature controller; 23—First PCT heating element; 24—Carbon sheet.

[0026] 25—Second thermostat; 26—Ceramic column; 27—Heat insulation head; 30—Second heating element.

[0027] 31—Second PCT heating element; 32—Carbon sheet 2; 33—Ceramic column 2; 34—Upper heat insulation head

[0028] 35—Lower heat insulation head. Detailed Implementation

[0029] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0030] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0033] In one embodiment of this utility model, such as Figure 1 As shown, an electric curling iron is provided, including a housing 10, a first heating component 20, and a second heating component 30.

[0034] The outer casing 10 is provided with a first heating component 20, which is disposed through the outer casing 10 and extends out of the outer casing 10. A second heating component 30 is sleeved on the part of the first heating component 20 that extends out of the outer casing 10.

[0035] like Figure 1 , 2 As shown, the outer casing 10 is composed of an upper handle 11, a lower handle 12, a wire 13, a tail cover 14, a fan 15, a circuit board 16, a switch 17, an LED light 18, and a decorative ring 19.

[0036] The upper handle 11 and the lower handle 12 are semi-circular and both ends are ventilated and breathable grille structures. The grille structure can provide sufficient air for the fan 15. The upper handle 11 and the lower handle 12 are connected by buckles and screws to form a circular handle, and a cavity is formed in the middle of the handle for the installation of the fan 15, the circuit board 16 and the first heating component 20.

[0037] The wire 13 is located at one end of the handle and serves to supply power to the curling iron.

[0038] The tail cap 14 is located at one end of the handle where the wire 13 is located and is sleeved on the wire 13. The tail cap 14 has a mesh structure and serves to prevent hair and other debris from getting into the fan.

[0039] The fan 15 is fixedly installed in the handle at one end where the tail cap 14 is located. The fan 15 serves to evenly distribute the heat generated by the first heating component 20 and the second heating component 30, and also serves to quickly dissipate the heat from the curling iron after use, while also serving to dissipate heat from the circuit board 16.

[0040] The circuit board 16 is fixedly disposed in the handle and is adjacent to the fan 15. The circuit board 16 is used to control the power of the first heating component 20 and the second heating component 30.

[0041] The switch 17 is located on the circuit board 16. The switch 17 controls the on / off state of the curling iron and the magnitude of the current passing through the circuit board 16, thereby generating heat at different temperatures in the heating component.

[0042] There are multiple LED lights 18, which are fixedly installed on one side of the switch 17. The LED lights 18 serve to provide the user with the current setting of the curling iron.

[0043] The decorative ring 19 is located at the end of the handle away from the wire 13, and the decorative ring 19 serves to decorate the curling iron.

[0044] like Figure 2 , 3 As shown, the first heating assembly 20 consists of a heating element 21, a first temperature controller 22, a first PCT heating element 23, a carbon sheet 24, a second temperature controller 25, a ceramic column 26, and a heat insulation head 27.

[0045] The heating element 21 is made of a conductive alloy. It is fixed in the handle, with one end connected to the circuit board 16 and the other end flush with the end of the handle away from the wire 13. The heating element 21 provides power to the first heating component 20 and the second heating component 30. At the same time, the heating element 21 generates heat after being powered on, which can provide heat to the interior and exterior surfaces of the ceramic pillar 1 26 and the ceramic pillar 2 33 under the action of the fan 15, so that the curling iron can heat up faster.

[0046] The first temperature controller 22 is provided with a round hole for airflow. One end of the first temperature controller 22 is fixedly disposed at the end of the heating element 21 that is not connected to the circuit board 16, and the other end of the first temperature controller 22 is sleeved in the ceramic pillar 26 and connected to the first PCT heating element 23. The first temperature controller 22 is used to detect the temperature of one end of the first PCT heating element 23 and send temperature information to the circuit board 16.

[0047] One end of the first PCT heating element 23 is connected to the first temperature controller 22. The first PCT heating element 23 plays the role of rapidly generating heat under the action of current. The PCT heating element has low resistance at room temperature and can heat up quickly when current passes through it. When the temperature rises to a certain level, that is, when it reaches its Curie temperature point, the resistance will rise sharply, thereby reducing the current passing through it and reducing the heat generation. As a result, it automatically stabilizes within a specific temperature range, realizing automatic constant temperature control.

[0048] The carbon sheet 24 is fixedly disposed inside the first PCT heating element 23. The carbon sheet 24 facilitates faster heating under the influence of current. Due to its excellent electrical and thermal conductivity, the carbon sheet heats up rapidly upon power-on, quickly generating heat within the first few seconds after power is applied. This heat is then transferred to the first PCT heating element 23, allowing the entire heating system to reach its operating temperature more quickly. This significantly reduces the preheating time for the user. Simultaneously, the carbon sheet compensates for the relatively weak heat distribution at the edges of the heating element, guiding heat from the center to the edges, resulting in a more uniform temperature across the entire heating element surface. When the first PCT heating element 23 experiences increased resistance and decreased power due to temperature rise, the carbon sheet continues to provide stable heat, maintaining the overall heating power and preventing a sudden drop in the temperature of the heating element. Furthermore, the carbon sheet shares some of the heating workload, reducing the burden on the first PCT heating element 23. During prolonged use, this helps reduce performance degradation and damage to traditional heating elements caused by frequent thermal expansion and contraction or excessively high operating temperatures. It can also reduce the risk of safety accidents caused by damage to the heating element.

[0049] The second temperature controller 25 is provided with a round hole for airflow. The second temperature controller 25 is located at the other end of the first PCT heating element 23. The second temperature controller 25 is used to detect the temperature at the other end of the first PCT heating element 23 and send temperature information to the circuit board 16.

[0050] The ceramic column 26 is sleeved outside the first PCT heating element 23 and carbon sheet 24, and its two ends are connected to two thermostats respectively. The ceramic column has the advantages of fast heating speed, uniform temperature and energy saving. The ceramic column 26 has multiple protrusions inside and grooves on its outer surface. The ceramic column 26 plays the role of uniformly and quickly generating heat under the heating action of the first PCT heating element 23 and carbon sheet 24 and dissipating it to the second heating component 30 so that the second heating component 30 can heat up quickly.

[0051] The heat insulation head 27 is attached to one end of the second thermostat 25 via a snap-fit ​​connection. The heat insulation head 27 serves to isolate the heat generated by the first PCT heating element 23 and carbon sheet 24 to the ceramic pillar 26 to prevent burns to the user. At the same time, when the curling iron is finished using it, the heat insulation head 27 can be removed, and the heat in the ceramic pillar 26 can be quickly discharged under the action of the fan 15.

[0052] like Figure 4 , 5 As shown, the second heating component 30 consists of a second pct heating element 31, a carbon sheet 32, a ceramic column 33, an upper heat insulation head 34, and a lower heat insulation head 35.

[0053] There are two second PCT heating elements 31, which are located around the ceramic column 26 and are perpendicular to the first PCT heating element 23. The second PCT heating elements 31 are used to generate heat quickly under the action of electric current.

[0054] There are two carbon plates 32, which are disposed around the ceramic column 26 and are respectively connected to the second pct heating element 31. The carbon plates 32 play a role in heating up more quickly under the action of electric current.

[0055] The ceramic column 2 33 is sleeved outside the second PCT heating element 31 and the carbon sheet 2 32. Under the action of the uniform heat generated by the ceramic column 1 26, the second PCT heating element 31 and the carbon sheet 2 32, the ceramic column 2 33 heats up uniformly and rapidly.

[0056] The upper heat insulation head 34 is sleeved around the second thermostat 25 and the ceramic column 26 and is fixedly connected to the second thermostat 25 and the ceramic column 26. The lower heat insulation head 35 is provided with a round hole for airflow. The lower heat insulation head 35 is sleeved around the first thermostat 22 and located inside the handle. The lower heat insulation head 35 is fixedly connected to the first thermostat 22 and the handle. The upper heat insulation head 34 and the lower heat insulation head 35 play the role of heat insulation and preventing leakage, and at the same time play the role of fixing the position of the second PCT heating element 31, carbon sheet 32 ​​and ceramic column 33.

[0057] The working principle of this utility model is as follows: An electric curling iron, after being powered on, can be heated to a suitable temperature by selecting an appropriate setting via switch 17. When switch 17 is turned on, the wire 13 powers the fan 15 and circuit board 16. The fan 15 rotates, and the heating element 21, the first PCT heating element 23, the first carbon sheet 24, the second PCT heating element 31, and the second carbon sheet 32 ​​generate heat under the action of the current. The heat generated by the heating element 21, under the action of the fan 15, enters the first ceramic column 26 via the first temperature controller 22, enters the second ceramic column 33 via the lower heat insulation head 35, and acts on the outer surface of the second ceramic column via the handle grille at the end with the heat insulation head 35. The first PCT heating element 23 and the first carbon sheet 24 generate heat. The heat is evenly distributed in the ceramic pillar 26 under the action of the fan 15, and the heat from the ceramic pillar 26 acts on the ceramic pillar 33. The second PCT heating element 31 and the carbon sheet 32 ​​generate heat. At the same time, under the action of the fan 15, the heat between the ceramic pillar 26 and the ceramic pillar 33 is evenly distributed and acts evenly on the ceramic pillar 33, so that the ceramic pillar 33 heats up quickly and evenly. When the curling iron needs to dissipate heat quickly after use, the circuit board 16 can be stopped from supplying power to the heating components by the switch 17 and the heat insulation head 27 can be unplugged. Under the action of the fan 15, the heat in the ceramic pillar 26 and the ceramic pillar 33 can be quickly dissipated, so as to achieve rapid heat dissipation of the curling iron.

[0058] The rest of this embodiment is the same as that in Embodiment 1. Features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here.

[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electrically heated curling iron, characterized in that: The utility model provides a kind of electric kettle, including shell, the shell is by upper handle and lower handle, fan and circuit board are equipped in the shell, first heating assembly is equipped in the shell, heating element is equipped in the first heating assembly, the heating element is connected with the circuit board, the other end of the heating element is equipped with first temperature controller, the other end of the first temperature controller is connected with first pct heating body, carbon sheet one is fixed on the side of the first pct heating body, the other end of the first pct heating body one is equipped with second temperature controller, ceramic column one is equipped outside the first temperature controller and second temperature controller, second heating assembly is equipped outside the ceramic column one, heat insulation head is equipped at two ends of the second heating assembly, the heat insulation head is fixedly connected with the ceramic column one, shell, a plurality of second pct heating body and carbon sheet two are equipped between the two heat insulation heads, ceramic column two is equipped outside the second pct heating body and carbon sheet two.

2. An electrically heated curling iron according to claim 1, wherein: The upper handle and the lower handle are semicircular and both ends are grid-shaped structures that can ventilate and ventilate, the upper handle and the lower handle form a circular handle, and a cavity is formed in the middle of the handle.

3. An electrically heated curling iron as defined in claim 1, wherein: One end of the shell is provided with an electric wire, and the end of the shell provided with the electric wire is provided with a tail cover, the tail cover is a mesh structure, the shell is provided with a fan fixed in the shell near the tail cover, and the other side of the fan is provided with a circuit board fixed in the shell.

4. An electrically heated curling iron as defined in claim 1, wherein: The heating element is fixedly arranged in the handle, and one end is connected with the circuit board.

5. The electrically heated curling iron of claim 1 wherein: The first temperature controller and the second temperature controller are provided with circular holes for airflow circulation.

6. An electrically heated curling iron as claimed in claim 1 or 5, characterized in that: The top end of the second temperature controller is provided with a heat insulation head.

7. An electrically heated curling iron as defined in claim 1, wherein: The ceramic column one is sleeved outside the first pct heating body and carbon sheet one, and both ends are connected with two temperature controllers respectively, a plurality of protrusions are arranged in the ceramic column one, and grooves are formed on the outer surface.

8. An electrically heated curling iron as defined in claim 1, wherein: The second pct heating body has two, is arranged in the periphery of the ceramic column one, and is arranged perpendicularly with the first pct heating body respectively.

9. An electrically heated curling iron as defined in claim 1, wherein: The carbon sheet two has a plurality of, the carbon sheet two has two, is arranged in the periphery of the ceramic column one and is connected with the second pct heating body respectively.