Cold air curling iron

Abstract

The invention belongs to the technical field of hairdressing products, and particularly relates to a cold air curling iron which comprises a curling part and a handle connected with one end of the curling part, a heating assembly is arranged in the curling part, an air outlet is circumferentially formed in the outer surface of the end, close to the curling part, of the handle, an air inlet is formed in the end, away from the curling part, of the handle, an installation cavity is formed in the handle, and a fan is installed in the installation cavity. And the fan sucks air through the air inlet and drives the air to flow out from the air outlet so as to cool the hair heated by the hair curling part. Due to the design that the air outlet and the heating assembly of the hair curling part are physically separated up and down, airflow driven by the fan does not pass through the heating assembly, the temperature of the airflow is low, the airflow directly acts on the surface of the curled hair, the effect of second shaping of the hair is achieved, the cooling shaping efficiency of the curled hair is improved, and the overall shaping time is shortened.

Description

Technical Field

[0001] The invention belongs to the technical field of hairdressing products, and in particular relates to a cold air curling iron. Background Art

[0002] Curling irons are a common handheld hairdressing device used to heat and curl hair. They primarily consist of a handle and a heating element. Traditional curling irons heat the hair to high temperature through the heating element, then allow it to cool naturally at room temperature to set. This results in a slow setting process and requires waiting. Furthermore, the curls are prone to deformation during the cooling process, affecting the quality of the curls. Currently, some curling irons feature air outlets that cool curved hair, improving curling efficiency.

[0003] The Chinese patent document with the publication number CN222804010U discloses a curling iron, comprising a curling iron body and a connecting assembly. The curling iron body comprises a tubular air outlet, and the connecting assembly is used to connect the tubular air outlet to the output end of the main unit. The outer circumference of the tubular air outlet is provided with a plurality of guide structures in the radial direction, and the guide structures are provided with radially extending oblique air outlets. The guide structures and the oblique air outlets both extend axially along the tubular air outlet, and the airflow generated by the main unit passes through the connecting assembly and is blown out along the oblique air outlet. The airflow generated by the main unit passes through the connecting assembly and is blown out along the oblique air outlet. The guide structures can guide the air flowing out of the oblique air outlet so that the airflow is blown out obliquely.

[0004] In the technical solution of the aforementioned patent document, the airflow from the air outlet is directed toward the hair, which helps to improve the curling effect. However, regardless of whether the main unit generates cold or hot air, the airflow will be heated by the heat after passing through the curling unit. The airflow that ultimately blows toward the hair from the air outlet will carry a certain amount of heat, which cannot quickly cool and shape the heated hair, thus affecting the styling efficiency and the final effect of the curling. Summary of the Invention

[0005] The object of the present invention is to provide a cold air curling iron to solve the problem that the air outlet of the existing curling iron is arranged on the curling part, the air flow passes through the curling part and then blows hot air from the air outlet to the hair, the cooling and shaping effect of the curls is poor, and the shaping efficiency and effect of the curls are affected.

[0006] When the hair is heated, cold air flows towards the curling part. The uneven heating of the air causes different air flow rates in different areas of the heated hair, and a temperature difference is generated between the inner and outer surfaces of the heated hair, resulting in poor curling effect, requiring longer heating and curling time, and reducing curling efficiency.

[0007] To achieve the above-mentioned objectives, an embodiment of the present invention provides a cold air curling iron, comprising a curling part and a handle connected to one end of the curling part, a heating component being provided in the curling part, an air outlet being provided circumferentially on the outer surface of the handle close to one end of the curling part, and an air inlet being provided at one end away from the curling part, an installation cavity being provided inside the handle, and a fan being installed in the installation cavity, the fan sucking air through the air inlet and driving the air to flow out of the air outlet to cool the hair heated by the curling part.

[0008] Furthermore, the air outlet includes multiple rows of air outlet holes distributed along the circumference of the handle.

[0009] Furthermore, a spoiler is fixedly provided in the installation cavity, and the spoiler is provided with a plurality of spoiler plates extending toward the air outlet, and diversion channels are formed between adjacent spoiler plates.

[0010] Furthermore, the air outlet includes multiple rows of air outlet holes distributed along the circumference of the handle; a spoiler is provided on the inner side of each row of air outlet holes, and the spoiler does not contact the air outlet holes or the inner wall of the installation cavity.

[0011] Furthermore, a guide hole is provided on the inner side of each of the air outlet holes, and the cross section of the guide hole is a bell-mouth structure.

[0012] Furthermore, a circuit board is provided in the installation cavity, and the circuit board is arranged between the fan and the spoiler, and the top of the circuit board is lower than the lowest end of the air outlet; the bottom of the multiple spoilers on one side of the spoiler is provided with an avoidance structure for avoiding the circuit board.

[0013] Furthermore, the curling part further comprises a heat-conducting tube and a plurality of heat-conducting protruding teeth. The heating component is arranged inside the heat-conducting tube, and the plurality of heat-conducting protruding teeth are distributed at intervals on the outer surface of the heat-conducting tube.

[0014] Furthermore, the outer surface of the heat-conducting tube is also provided with anti-scalding comb teeth, and the anti-scalding comb teeth and the heat-conducting convex teeth are alternately distributed circumferentially on the outer surface of the heat-conducting tube, and the radial length of the heat-conducting convex teeth is smaller than the radial length of the anti-scalding comb teeth.

[0015] Furthermore, the anti-scalding comb teeth and the heat-conducting convex teeth are respectively arranged at intervals along the axial direction of the heat-conducting tube; the distribution density of the heat-conducting convex teeth along the axial direction of the heat-conducting tube is greater than the distribution density of the anti-scalding comb teeth along the axial direction of the heat-conducting tube.

[0016] Furthermore, the heat-conducting protruding teeth are integrally formed on the outer surface of the heat-conducting tube, and the material of the heat-conducting protruding teeth is metal.

[0017] Furthermore, the curling part also includes a heat-conducting cylinder, which includes two semi-cylindrical shells. The sides of the two semi-cylindrical shells that are close to each other form a heating plane, and a heating gap is formed between the two heating planes. The heating gap extends axially and passes through the end of the curling part away from the handle; the heating assembly is provided inside the two semi-cylindrical shells.

[0018] Furthermore, anti-scalding comb teeth and heat-conducting convex teeth are alternately distributed circumferentially on the arc-shaped outer surfaces of the two semi-cylindrical shells, and the radial length of the heat-conducting convex teeth is smaller than the radial length of the anti-scalding comb teeth.

[0019] The above one or more technical solutions in the cold air curling iron provided by the embodiment of the present invention have at least the following technical effects:

[0020] The user wraps the hair closest to the scalp around the side of the curling section near the handle, and the remaining hair continues to be wrapped around other parts of the curling section. After the hair is heated and shaped by the curling section, the handle is turned to move the heated and curled hair in the curling section and wrap it around the air outlet area of ​​the handle. As the handle is turned to move the hair, part of the hair is heated in the curling section, while part of the heated hair is cooled and shaped in the air outlet area, allowing the hair to be curled and cooled at the same time. Alternatively, the heated hair can be wrapped around the air outlet area one or more times and the handle is pulled toward the end of the hair. As the handle is pulled downward, the wrapped hair passes through the air outlet to cool and shape until the hair is separated from the curling iron.

[0021] Due to the physical separation of the air outlet and the heating component of the curling part, the airflow driven by the fan does not pass through the heating component. The temperature of the airflow is lower and it directly acts on the surface of the curls, achieving the effect of styling the hair in seconds, improving the cooling and styling efficiency of the curls, shortening the overall styling time, and improving the user experience.

[0022] In addition, when the user turns the handle to wrap the hair around the air outlet, the curling part simultaneously moves away from the user's head, effectively reducing the risk of burns caused by the heating component contacting the skin. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic structural diagram of a cold air curling iron for curling hair provided by an embodiment of the present invention.

[0025] Figure 2This is a front view of a cold air curling iron for curling hair provided by an embodiment of the present invention.

[0026] Figure 3 The cold air curling iron provided by the embodiment of the present invention Figure 2 A magnified view of center.

[0027] Figure 4 The cold air curling iron provided by the embodiment of the present invention Figure 2 Magnified view of B.

[0028] Figure 5 This is a partial structural diagram of the inner side of the handle of the cold air curling iron provided by an embodiment of the present invention.

[0029] Figure 6 This is a structural diagram of a spoiler of a cold air curling iron provided in an embodiment of the present invention.

[0030] Figure 7 A cross-sectional view of a cold air curling iron provided in an embodiment of the present invention.

[0031] Figure 8 A cross-sectional view of the handle of a cold air curling iron provided in an embodiment of the present invention.

[0032] Figure 9 A cross-sectional view of the curling portion of a cold air curling iron provided in an embodiment of the present invention.

[0033] Figure 10 This is a front view of another embodiment of the cold air curling iron provided by an embodiment of the present invention.

[0034] Figure 11 A top view of another embodiment of the cold air curling iron provided by an embodiment of the present invention.

[0035] Figure 12 A cross-sectional view of a curling portion of another embodiment of a cold air curling iron provided by an embodiment of the present invention.

[0036] In the figure, 100, handle, 110, air outlet, 111, air outlet hole, 112, guide hole, 113, guide surface, 120, air inlet, 130, installation cavity, 140, fan, 150, spoiler, 151, spoiler, 152, diversion channel, 153, avoidance structure, 160, circuit board,

[0037] 200, curling part, 210, heating component, 220, heat-conducting cylinder, 221, semi-cylindrical shell, 222, heating gap, 230, anti-scalding comb teeth, 240, heat-conducting convex teeth, 241, guide surface, 250, heat insulation, 251, heat insulation gap,

[0038] 300. Hair. DETAILED DESCRIPTION

[0039] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0040] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0042] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0043] In one embodiment of the cold air curling iron of the present invention, please refer to Figures 1 to 12 The cold air curling iron includes a curling unit 200 and a handle 100 connected to one end of the curling unit 200. A heating assembly 210 is provided in the curling unit 200. An air outlet 110 is circumferentially provided on the outer surface of the handle 100 near the curling unit 200, and an air inlet 120 is provided at the end away from the curling unit 200. A mounting cavity 130 is provided inside the handle 100, and a fan 140 is installed in the mounting cavity 130. The fan 140 draws air through the air inlet 120 and drives the air out of the air outlet 110 to cool the hair 300 heated by the curling unit 100.

[0044] Specifically, the user wraps the hair 300 near the scalp around the side of the curling section 200 near the handle 100, and the remaining hair 300 continues to be wrapped around other parts of the curling section 200. After the hair 300 is heated and shaped by the curling section 200, the handle 100 is rotated, causing the hair 300 heated and curled in the curling section 200 to move and wrap around the air outlet 110 area of ​​the handle 100. As the handle 100 is rotated to move the hair 300, part of the hair 300 is heated in the curling section 200, while part of the heated hair 300 is cooled and shaped in the air outlet 110 area, allowing the hair 300 to be curled and cooled simultaneously. Alternatively, the heated hair 300 can be wrapped around the air outlet 110 area one or more times, and the handle 100 can be pulled toward the end of the hair 300. As the handle 100 is pulled downward, the wrapped hair 300 passes through the air outlet 110 to cool and shape, until the hair 300 is separated from the curling iron.

[0045] Because the air outlet 110 is physically separated from the heating component 210 of the curling part, the airflow driven by the fan 140 does not pass through the heating component 210. The airflow temperature is relatively low and acts directly on the surface of the curled hair, achieving a 300-second styling effect, improving the cooling and styling efficiency of the curled hair, shortening the overall styling time, and enhancing the user experience.

[0046] In addition, when the user rotates the handle 100 to wrap the hair 300 around the air outlet 110, the curling part 200 simultaneously moves away from the user's head, effectively reducing the risk of burns caused by the heating component contacting the skin.

[0047] Preferably, please refer to Figure 1 and Figure 7 The air inlet 120 is located on the end face of the handle 100 away from the curling section 200. The fan 140 is positioned horizontally along the axial direction of the mounting cavity 130, forming an axially extending linear fluid channel. Specifically, the axis of the fan 140 is aligned with the axis of the mounting cavity 130, making the mounting cavity 130 the main body of the air duct, increasing airflow velocity and volume. Furthermore, the horizontal placement of the fan 140 positions the center of gravity of the curling iron along the central axis of the handle 100, preventing vibration caused by the tilted placement of the fan 140.

[0048] For further information, please refer to Figure 1 and Figure 2 The air outlet 110 includes multiple rows of air holes 111 distributed along the circumference of the handle 100. Specifically, the multiple rows of air holes 111 effectively increase the air outlet area and the air flow rate per unit time. The circumferential distribution of the air holes 111 forms an annular airflow distribution. When the handle 100 is turned to cool the curls, the airflow passes through a large area of ​​the curls, avoiding cooling blind spots.

[0049] For further information, please refer to Figures 5 to 8A spoiler 150 is fixedly mounted within the mounting cavity 130. The spoiler 150 includes multiple spoilers 151 extending toward the air outlet 110, with diversion channels 152 formed between adjacent spoilers 151. Specifically, the spoilers 151 break up the central high-speed airflow, preventing airflow concentration and evenly distributing the airflow within the diversion channels 152. This balances the airflow velocity distribution, reducing noise and ensuring a stable and uniform airflow toward the hair 300 wrapped around the air outlet 110 area, thereby increasing cooling consistency across the hair 300 at different locations.

[0050] For further information, please refer to Figures 5 to 8 The air outlet 110 includes multiple rows of air holes 111 distributed along the circumference of the handle 100. Each row of air holes 111 is equipped with a spoiler 151 on its inner side, and the spoiler 151 does not contact the air holes 111 or the inner wall of the mounting cavity 130. Specifically, each spoiler 151 corresponds to the inner side of a row of air holes 111, directing airflow within the diversion channel 152 along the inner wall of the spoiler 151 toward the air holes 111, thereby directing the airflow toward the hair 300. The spoiler 151 does not contact the air holes 111 or the inner wall of the mounting cavity 130, preventing the impact of airflow and the resulting loud noise and vibration.

[0051] For further information, please refer to Figure 5 Each outlet 111 is provided with a guide hole 112 on its inner side. The cross-section of the guide hole 112 is a bell-shaped structure. Specifically, air flows out of the outlet along the guide hole 112, increasing the flow rate and allowing the airflow to penetrate the inner and outer surfaces of the hair 300. The bell-shaped structure of the guide hole 112 further improves the uniformity of the airflow.

[0052] Preferably, please refer to Figure 3 The ends of the air outlets 111 facing away from the mounting cavity 130 are provided with outwardly extending guide surfaces 113. The adjacent air outlets 111 are staggered circumferentially. Specifically, the guide surfaces 113 form an inclined diffusion angle, directing airflow along different angles of the hair 300. The staggered arrangement of the air outlets 111 allows adjacent airflow coverage areas to overlap, reducing cooling blind spots.

[0053] For further information, please refer to Figure 6 and Figure 7 A circuit board 160 is also located within the mounting cavity 130. This circuit board 160 is positioned between the fan 140 and the spoiler 150, with the top of the circuit board 160 lower than the lowest end of the air outlet 110. Multiple spoilers 151 on one side of the spoiler 150 have a relief structure 153 at their base to avoid the circuit board 160. Specifically, the airflow output by the fan 140 passes through the circuit board 160, isolating it from heat transfer and maintaining a relatively low operating temperature. Furthermore, the spoilers 151 extend axially to one side of the circuit board 160, extending the length of the diversion channel 152. The relief structure 153 prevents the risk of mechanical interference.

[0054] For further information, please refer to Figure 7 and Figure 9 The curling unit 200 also includes a heat-conducting tube 220 and a plurality of heat-conducting protruding teeth 240. The heating assembly 210 is disposed within the heat-conducting tube 220, and the plurality of heat-conducting protruding teeth 240 are spaced apart on the outer surface of the heat-conducting tube 220. Specifically, the heat-conducting tube 220 is a one-piece cylindrical structure. When the curling iron is in operation, the heating assembly 210 heats the heat-conducting tube 220, and the heat-conducting protruding teeth 240 heat up along with the heat-conducting tube 220, thereby heating the hair. When the user wraps the hair 300 around the outer surface of the heat-conducting tube 220, the heat-conducting protruding teeth 240 extend into the gaps between the hair 300, increasing the heat contact area of ​​the hair 300, shortening the heating and curling time of the hair 300, and improving styling efficiency. The heat-conducting protruding teeth help to comb and position the hair, preventing the hair 300 from loosening during heating, curling, and moving, thereby improving the quality of the heated hair 300.

[0055] For further information, please refer to Figure 9 The outer surface of the heat-conducting tube 220 is also provided with anti-scalding comb teeth 230. The anti-scalding comb teeth 230 and the heat-conducting protruding teeth 240 are circumferentially arranged alternately on the outer surface of the heat-conducting tube 220. The radial length of the heat-conducting protruding teeth 240 is smaller than the radial length of the anti-scalding comb teeth 230. Specifically, the heat-conducting protruding teeth 240 and the anti-scalding comb teeth 230 cooperate to comb and position the hair 300. The radial length of the heat-conducting protruding teeth 240 is smaller than the radial length of the anti-scalding comb teeth 230. The anti-scalding comb teeth 230 are used to protect the user from contact with the heat-conducting protruding teeth 240 and burns.

[0056] For further information, please refer to Figure 7 The anti-scald comb teeth 230 and the heat-conducting protruding teeth 240 are spaced apart along the axial direction of the heat-conducting tube 220; the distribution density of the heat-conducting protruding teeth 240 along the axial direction of the heat-conducting tube 220 is greater than the distribution density of the anti-scald comb teeth 230 along the axial direction of the heat-conducting tube 220. Specifically, this further increases the heat contact area of ​​the hair 300, and the high density of heat-conducting protruding teeth can transfer heat to the surface of the hair 300 more evenly and quickly, reducing the hair heating time and improving the styling efficiency and effect of the curls. Preferably, the multiple heat-conducting protruding teeth 240 are equidistantly spaced along the axial direction of the heat-conducting tube 220. Specifically, the equidistant design of the heat-conducting protruding teeth 240 ensures uniform heat transfer, making the hair 300 more evenly heated and reducing the risk of thermal stress concentration.

[0057] For further information, please refer to Figure 9The heat-conducting protrusions 240 are integrally formed on the outer surface of the heat-conducting tube 220 and are made of metal. Specifically, the integrally formed design of the heat-conducting protrusions 240 reduces assembly difficulty and increases structural strength. The metal material of the heat-conducting protrusions 240 and the heat-conducting tube 220 is preferably aluminum. Aluminum's excellent thermal conductivity allows the heat to be quickly transferred to the heat-conducting tube 220 and the heat-conducting protrusions 240 when the heating component 210 heats up, resulting in a similar heating time between the two, ensuring stable heating of the hair 300. Furthermore, the light weight of aluminum reduces the weight of the curling iron. Preferably, the cross-section of the heat-conducting protrusions 240 is trapezoidal. Specifically, this increases the heat contact area of ​​the hair 300 and reduces curling time.

[0058] For further information, please refer to Figure 4 The free ends of the heat-conducting teeth 240 are provided with an inclined guide surface 241. Specifically, when wrapping hair, the guide surface 241 guides the hair 300 into the groove formed by the axially adjacent heat-conducting teeth 240. Alternatively, the free ends of the heat-conducting teeth 240 may be in an inverted V-shape, with two inclined guide surfaces 241, to reduce friction and improve the efficiency of the hair 300 entering and wrapping around the curling unit 200.

[0059] Another embodiment of the cold air curling iron of the present invention, please refer to Figures 10 to 12 The curling unit 200 includes a heat-conducting tube 220, which comprises two semi-cylindrical shells 221. The adjacent sides of the two semi-cylindrical shells 221 form a heating plane, and a heating gap 222 is formed between the two heating planes. The heating gap 222 extends axially and penetrates the end of the curling unit 200 away from the handle 100. A heating assembly 210 is installed inside each of the semi-cylindrical shells 221.

[0060] Specifically, when the curling iron is in operation, the heating assembly 210 heats the semi-cylindrical shell 221, causing the two semi-cylindrical shells 221 to heat up simultaneously. To curl hair, the user wraps hair 300 around the outer surface of the heat-conducting cylinder 220, which heats and shapes the hair into curls. To straighten hair, the user inserts hair 300 into the heating gap 222 and pulls the handle 100 toward the ends of the hair, effectively straightening the hair 300 within the heating gap 222. This curling iron combines both curling and straightening functions, is easy to operate, and meets diverse styling needs.

[0061] For further information, please refer to Figure 10The ends of the two semi-cylindrical shells 221 facing away from the handle 100 are each equipped with a heat insulator 250. A heat insulating gap 251 is defined between the two heat insulators 250, connecting to the heating gap 222. Specifically, when straightening hair, the user sequentially passes the hair 300 through the heat insulating gaps 251 and into the heating gap 222. By pressing the two heat insulators 250, the hair 300 is ensured to fit tightly against the planes of the two semi-cylindrical shells 221. The handle 100 is then moved synchronously to further enhance the straightening effect. The heat insulators 250 effectively isolate the heating zone, reducing the risk of burns during curling or straightening.

[0062] For further information, please refer to Figure 11 The curved outer surface of each semi-cylindrical shell 221 is alternately distributed with heat-conducting protruding teeth 240 and anti-scalding comb teeth 230. The radial length of the heat-conducting protruding teeth 240 is smaller than the radial length of the anti-scalding comb teeth 230. Specifically, when a user curls their hair 300, they wrap the hair 300 around the outer surface of the heat-conducting cylinder 220. The heat-conducting protruding teeth 240 penetrate the gaps between the hair 300, increasing the heat contact area of ​​the hair 300 and improving curling efficiency. Furthermore, the radial length of the heat-conducting protruding teeth 240 is smaller than that of the anti-scalding comb teeth 230, protecting the user from burns caused by contact with the heat-conducting protruding teeth 240.

[0063] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cold air curling iron, characterized in that: The hair curling device comprises a curling part and a handle connected to one end of the curling part. A heating component is provided in the curling part. An air outlet is circumferentially provided on the outer surface of the handle close to the end of the curling part, and an air inlet is provided on the end away from the curling part. An installation cavity is provided inside the handle, and a fan is installed in the installation cavity. The fan sucks air through the air inlet and drives the air to flow out of the air outlet to cool the hair heated by the curling part.

2. The cold air curling iron according to claim 1, characterized in that: The air outlet includes a plurality of rows of air outlet holes distributed along the circumference of the handle.

3. The cold air curling iron according to claim 1, characterized in that: A spoiler is fixedly provided in the installation cavity. The spoiler is provided with a plurality of spoiler plates extending toward the air outlet, and diversion channels are formed between adjacent spoiler plates.

4. The cold air curling iron according to claim 3, characterized in that: The air outlet includes multiple rows of air outlet holes distributed along the circumference of the handle; a spoiler is provided on the inner side of each row of air outlet holes, and the spoiler does not contact the air outlet holes or the inner wall of the installation cavity.

5. The cold air curling iron according to claim 4, characterized in that: A guide hole is provided on the inner side of each of the air outlet holes, and the cross section of the guide hole is a bell-mouth structure.

6. The cold air curling iron according to claim 3, characterized in that: A circuit board is also provided in the installation cavity. The circuit board is provided between the fan and the spoiler, and the top of the circuit board is lower than the lowest end of the air outlet; the bottom of the multiple spoilers on one side of the spoiler is provided with an avoidance structure for avoiding the circuit board.

7. The cold air curling iron according to any one of claims 1 to 6, characterized in that: The curling part further comprises a heat-conducting tube and a plurality of heat-conducting protruding teeth. The heating component is arranged inside the heat-conducting tube, and the plurality of heat-conducting protruding teeth are distributed at intervals on the outer surface of the heat-conducting tube.

8. The cold air curling iron according to claim 7, characterized in that: The outer surface of the heat-conducting tube is further provided with anti-scalding comb teeth, which are alternately distributed circumferentially with the heat-conducting convex teeth on the outer surface of the heat-conducting tube, and the radial length of the heat-conducting convex teeth is smaller than the radial length of the anti-scalding comb teeth.

9. The cold air curling iron according to claim 8, characterized in that: The anti-scalding comb teeth and the heat-conducting convex teeth are respectively arranged at intervals along the axial direction of the heat-conducting tube; the distribution density of the heat-conducting convex teeth along the axial direction of the heat-conducting tube is greater than the distribution density of the anti-scalding comb teeth along the axial direction of the heat-conducting tube.

10. The cold air curling iron according to claim 7, characterized in that: The heat-conducting protruding teeth are integrally formed on the outer surface of the heat-conducting tube, and the material of the heat-conducting protruding teeth is metal.

11. The cold air curling iron according to any one of claims 1 to 6, characterized in that: The curling part also includes a heat-conducting cylinder, which includes two semi-cylindrical shells. The sides of the two semi-cylindrical shells that are close to each other form a heating plane, and a heating gap is formed between the two heating planes. The heating gap extends axially and passes through the end of the curling part away from the handle; the heating assembly is provided inside the two semi-cylindrical shells.

12. The cold air curling iron according to claim 11, characterized in that: Anti-scalding comb teeth and heat-conducting convex teeth are alternately distributed circumferentially on the arc-shaped outer surfaces of the two semi-cylindrical shells, and the radial length of the heat-conducting convex teeth is smaller than the radial length of the anti-scalding comb teeth.

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