A hair curler with high heating efficiency and ease of use

Abstract

To provide a hair curler having high heating efficiency and being easy to use. [Solution] The hair curler includes a handle 18, one end of which is connected to a heating unit 11, and a start switch 13 connected to a control board 15 is provided on the handle. The heating unit includes a bracket connected to the handle and a heating layer installed outside the bracket, and an external thermal conductive layer is connected to the outer surface of the heating layer, and after the heating layer generates heat, the heat is transferred to the external thermal conductive layer, which is heated and acts on the hair, making the curling operation healthier and increasing the thermal conductivity efficiency. At the same time, only a pair of notches is installed on the bracket, and an L-shaped lock block is installed and locked in the notches, so that the thermal conductive part and the heating part are both connected to the bracket in an axial manner and fixed, which is convenient to assemble. A thermal conductive layer is installed between the bracket and the heating film to transfer the heat from the other side of the heating film into the bracket, thereby extending the service life of the heating film.

Description

Technical Field

[0001] The present invention relates to the field of hair curlers, and particularly to a hair curler with high heating efficiency and good usability.

Background Art

[0002] With the improvement of living standards, the types of hair care products are increasing. In order to meet the demand for curl styling, electric hair curlers are often used to curl and style hair. Hair curlers are one of the commonly used devices in beauty salons. They are popular because they are easy to carry and have good usability. Their main components are a handle and a heating reel. The design of hair curlers adopts a circuit panel to control the temperature, improve the protein structure of hair to create curls, and protect the hair quality during the perm process. Conventional hair curlers often use aluminum metal for heat conduction, but its heat conduction effect is relatively poor, and it cannot meet efficient heat transfer. There are also situations where the hair cannot be fixed or the hair fixation is complicated, resulting in poor usability. In addition, the male ends of conventional hair curlers are all connected to plugs, and it is easy to get an electric shock by accidentally touching the male end when inserting the plug, posing a safety risk.

[0003] Chinese Patent Publication No. CN220306137U discloses a button assembly structure and a hair styling device. The button assembly structure includes an assembly body and a cylinder sleeved on the assembly body. A button is provided on the cylinder, and an elastic pressing pad assembly corresponding to the button is provided on the assembly body. The elastic pressing pad assembly consists of an elastic pressing pad and an elastic force arm. One end of the elastic force arm is connected to the assembly body, and the other end is connected to the elastic pressing pad. In the present invention, a button is provided on the cylinder, an elastic pressing pad assembly corresponding to the button is provided on the assembly body, the elastic pressing pad assembly consists of an elastic pressing pad and an elastic force arm, one end of the elastic force arm is connected to the assembly body, and the other end is connected to the elastic pressing pad. By doing so, the elastic pressing pad assembly pushes up the button. When the button is pressed, the pressing width is relatively large, so that the touch feeling is relatively strong and the user experience is improved. The hair styling device described in this patent has a relatively poor thermal conductivity during use, and there is a risk of electric shock due to accidental contact during use caused by the connection between the male end and the plug, and there is a safety risk.

[0004] Chinese Patent Publication No. CN220587695U discloses an automatic hair curler, which includes a handle, a heating element is attached to the handle, an inclined groove for hair release is provided at the top of the heating element, and a hair separating member connected to a driving device is sleeved on the outer periphery of the heating element. The hair separating member includes a transmission part, the transmission part extends vertically upward to form two hair separating levers, the two hair separating levers are in close contact to form a "U"-shaped hair separating position, and a heat dissipation structure is formed on the two hair separating levers. Through the mutual cooperation of the "U"-shaped hair separating position and the inclined groove, it is realized to shear and entangle the inserted hair bundle, realize the fixing effect of the relative position between the hair bundle and the heating element, avoid the occurrence of slipping during use, ensure the curling effect, and by pre-arranging the hair and placing it in the inclined groove, it is possible to avoid the situation where the hair bundle is dispersed and irregularly entangled during the curling process, so as not to cause harm to the user. The structure of this patent ensures the curling effect during use, but the situation where the hair is caught easily occurs. If the hair is caught too much, it will affect the use of the product.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The technical problem to be solved by the present invention is that conventional hair curlers often use aluminum metal for heat conduction, its heat conduction effect is relatively poor, it cannot meet efficient heat transfer, and there is also a situation where the hair cannot be fixed or the fixing of the hair is complicated, making it difficult to use. Moreover, the male ends of conventional hair curlers are all connected to plugs, and when inserting the plug, it is easy to accidentally touch the male end and get an electric shock, which poses a safety risk. In view of the above defects of the prior art, a hair curler with high heating efficiency and good usability is provided.

Means for Solving the Problems

[0006] In order to solve the above technical problems, the technical solution adopted in the present invention is as follows.

[0007] Construct a hair curler with high heating efficiency and good usability, including a handle. A heating part is connected to one end of the handle, a control board is installed inside the handle, and a start switch connected to the control board is installed on the handle. The heating part includes a bracket connected to the handle and a heating layer installed on the outer surface of the bracket. An outer heat conduction layer is connected to the outer surface of the heating layer. After the heating layer generates heat, the heat is transmitted to the outer heat conduction layer, and after the outer heat conduction layer is heated, it acts on the hair.

[0008] Preferably, an inner heat conduction layer or an inner heat insulation layer is installed between the heating layer and the bracket.

[0009] Preferably, notches are installed in all of the outer heat conduction layer, the heating layer, and the inner heat conduction layer or the inner heat insulation layer. An L-shaped groove extending longitudinally inside the bracket is installed in the bracket. An L-shaped lock block is installed in the L-shaped groove and the notch. The L-shaped lock block is movable only in the axial direction of the heating part on the L-shaped groove and the notch.

[0010] Preferably, an L-shaped engaging lug extending longitudinally is installed on the bracket on the outer heat conduction layer, and an engaging lug surface corresponding to the L-shaped engaging lug is installed in the L-shaped groove to move the outer heat conduction layer along the axial direction of the bracket.

[0011] Preferably, the outer heat conduction layer and the inner heat conduction layer are made of titanium metal heat conduction, and the heating layer is a heating film.

[0012] Preferably, a pressing part is installed on the handle, and a clamping force on the hair is formed between the pressing part and the heating part.

[0013] Preferably, the pressing part includes a pressing spring connected to the handle and an aluminum clip installed on the surface of the heating part and connected to the pressing spring. The pressing part further includes a pressing handle connected to the aluminum clip. When the pressing handle receives force, it compresses the pressing spring, moves the aluminum clip away from the heating part, and when the pressing force of the pressing handle is released, it restores the deformation of the compression spring and moves the aluminum clip towards the heating part.

[0014] Preferably, one end of the heating part is connected to and installed on the handle, and a rocket nozzle is connected to the other end to form an independent space inside the hair curler. A connecting wire for conducting electricity to the control board is connected to the other end of the handle.

[0015] Preferably, the connecting wire includes a male end connected to the control board and a female end connected to the commercial power supply. When the male end is inserted into the female end, it energizes the control board.

[0016] Preferably, a silicon ring is installed at the connection part between the handle and the heating part, a pressure relief hole is installed on the handle, a pressure relief valve inserted into the pressure relief hole is installed on the silicon ring, and an air plug is installed at the end of the pressure relief valve. When the pressure relief valve is pressed, it moves the air plug to open the pressure relief hole, and when the pressing force of the pressure relief valve is released, it moves the air plug into the pressure relief hole to seal it.

Effects of the Invention

[0017] The beneficial effects of the present invention are as follows. By installing a heat conduction layer of titanium metal to act on the hair, the curling operation becomes healthier and the heat conduction efficiency is increased. At the same time, only a set of notches are installed on the bracket, and an L-shaped lock block is installed in the notch for locking, so that both the heat conduction part and the heating part are connected and fixed to the bracket in an axial direction manner, making the assembly more convenient. A heat conduction layer is installed between the bracket and the heating film to transfer the heat on the other side of the heating film to the air in the bracket, avoiding the situation where the heat on the other side of the heating film cannot be transferred and consumed, which affects the use of the heating film, and extending the service life of the heating film. At the same time, the pressure relief valve installed on the handle facilitates the outflow of the hot air in the bracket for pressure relief, avoids safety accidents that occur after the internal temperature of the hair curler rises, and improves the safety of the product. And, with the installed display and indicator light, it is easier to check the usage status of the hair curler, making it more convenient.

Brief Description of the Drawings

[0018] To more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the following further describes the present invention in conjunction with the drawings and embodiments. The drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative efforts.

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Embodiments for Carrying out the Invention

[0019] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe while combining the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts all belong to the protection scope of the present invention.

[0020] A hair curler with high heating efficiency and good usability according to a preferred embodiment of the present invention includes, as shown in FIGS. 1 to 2, a handle 18 and a control board 15 installed inside the handle. At one end of the handle, a heating part 11 connected to the control board is installed. The heating part acts on the hair to achieve a curling effect. At the other end of the handle, a connection wire 17 connected to the control board is installed. The connection wire supplies power to the control board, and the control board drives the heating part to heat. Further installed on the handle is a pressing part 19, and an aluminum clip 190 is installed on the pressing part. The aluminum clip is placed on the heating part to generate a clamping force on the hair between the heating parts, so that the hair realizes a curling effect on the heating part. Further installed on the handle are a start switch 13 connected to the control board and a display 14 for displaying the operating state of the hair curler. The start switch is used to turn the hair curler on and off, and the display is used to intuitively confirm the operating state of the hair curler. At the same time, in order to facilitate the adjustment of the operating gear of the hair curler, a heating switch 1910 is further installed on the pressing part 19.

[0021] Specifically, as shown in FIGS. 3 to 5, the heating part 11 includes an aluminum bracket 113 and a heating film 111 installed outside the aluminum bracket. An inner layer of titanium 112 is installed between the heating film and the aluminum bracket, and an outer layer of titanium 110 is installed on the outer surface of the heating film. By heating the outer layer of titanium after heating by the heating film, it acts on the hair to achieve a curling effect. And since titanium metal is beneficial to the human body, it is more effective to use titanium metal as the heat conduction layer. To facilitate the assembly and heat conductivity of the heating part 19, the inside of the aluminum bracket is set to be hollow, and a plurality of sets of locking grooves 1130 are installed therein. One end of the heating part is connected and locked to the handle by being locked in the locking groove by a screw. A rocket nozzle 10 is installed at the other end of the heating part. Since there are some tips on the rocket nozzle, it is easy to insert the hair curler into the hair, and it is easy to use. A notch 115 is installed on the aluminum bracket 113, and an L-shaped groove 1131 extending longitudinally inside the aluminum bracket is installed in the notch. A notch 115 is correspondingly installed on the inner layer of titanium 112, and it is placed on the outer surface of the aluminum bracket. The heating film adopts the same structure as the inner layer of titanium and is placed on the outer surface of the inner layer of titanium. A notch 115 is also installed on the outer layer of titanium 110 installed on the outer surface of the heating film 111, and it is correspondingly installed corresponding to the longitudinally extending L-shaped engaging lug 1100. An engaging lug surface 1132 is installed in the L-shaped groove corresponding to the L-shaped engaging lug. The engaging lug surface adopts the inner surface of the L-shaped groove and is installed to generate an axial stopping force on the L-shaped engaging lug, and the outer layer of titanium is sleeved on the aluminum bracket so that it can only move axially with respect to the aluminum bracket.To further facilitate the stability of the heating part, an L-shaped locking block 114 is installed in the notch 115. The L-shaped locking block is movable only in the axial direction of the aluminum bracket, thereby fixing the inner layer of titanium, the heating film, and the outer layer of titanium to the aluminum bracket. One end of the aluminum bracket is hermetically connected to the handle, and the other end is hermetically connected to the rocket nozzle, thereby realizing the fixation of the inner layer of titanium, the heating film, and the outer layer of titanium to the aluminum bracket through the L-shaped locking block. It should be noted that the outer layer of titanium may be replaced by other heat-conducting metal materials, but it lacks the advantages to the human body due to titanium metal. Also, the inner layer of titanium can also conduct heat, and in order to avoid the heating film from being damaged because the heat cannot be utilized towards one side of the inner layer of titanium, it may be replaced by other heat-conducting metal materials, or it may be replaced by a non-heat-conducting material. At this time, the service life of the heating film is shorter compared to that of the heat-conducting material.

[0022] Furthermore, as shown in FIGS. 2 and 6, the pressing part 19 includes a pressing spring 192 installed on the handle, an aluminum clip 190 installed on the pressing spring, and a pressing handle 191. A locking lug 1900 is installed at one end of the aluminum clip, and a locking pole 1911 is correspondingly installed on the pressing handle. The locking pole is engaged with the locking lug 1900 to fix the pressing spring between the aluminum clip and the pressing handle. And a locking buckle 193 is installed at the lower end of the locking lug to fix the pressing handle and the aluminum clip. When a pressing force is applied to the pressing handle 191 to compress the pressing spring, at the same time, the angle formed between the warp of the aluminum clip and the heating part becomes larger. After clamping the hair and then releasing the pressing force of the pressing handle, the deformation of the pressing spring is restored, and the aluminum clip is brought closer to the heating part to clamp the hair, thereby enabling the curling operation and making it more convenient to use.

[0023] Furthermore, as shown in FIGS. 2 and 7, a silicon ring 12 is installed between the handle 18 and the heating part 19 to avoid the heat of the heating part being transmitted to the handle by the silicon ring. Near the heating part on the handle, a pressure relief hole 180 is installed. On the silicon ring, a pressure relief valve 120 is installed corresponding to the pressure relief hole. On the pressure relief valve, an air plug 1200 is installed. The air plug is placed inside the handle. When the pressure relief valve is pressed, the air plug moves away from the pressure relief hole to open the pressure relief hole, avoiding the internal temperature of the heating part being heated and causing danger to the product, which is safer. However, when the pressure relief valve is loosened after the pressure relief is completed and its own elasticity is restored, the air plug is placed in the pressure relief hole to complete the closing of the pressure relief hole, facilitating the pressure relief inside the hair curler.

[0024] Furthermore, as shown in FIGS. 7 to 8, the control board 15 is further provided with an indicator light 150 that makes it easy to check the operating state. The connection wire 17 includes a male end 170 connected to the handle and a female end 171 connected to the plug. When the male end is inserted into the female end, the hair curler can be energized and operated by energizing the connection wire. For the specific structure of the connection wire, reference is made to the utility model patent applied by the applicant. The utility model patent application number is 2024201603823, and the patent name is an anti-electric shock connection wire and an electrical device having this connection wire, which provides an anti-electric shock effect for the hair curler. The specific anti-electric shock structure will not be repeatedly described here.

[0025] It should be understood that the present invention is described by way of several embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present invention. Also, with the teaching of the present invention, these features and embodiments can be modified to fit specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments included within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A hair curler having high heating efficiency and ease of use, comprising a handle, a heating unit connected to one end of the handle, a control board installed within the handle, and a start switch connected to the control board installed on the handle, wherein the heating unit includes a bracket connected to the handle and a heat generating layer installed on the outer surface of the bracket, an external thermal conductive layer is connected to the outer surface of the heat generating layer, the heat is generated by the heating layer and then transferred to the external thermal conductive layer, and the external thermal conductive layer acts on the hair after being heated.

2. 2. The hair curler according to claim 1, wherein an inner heat conductive layer or an inner heat insulating layer is provided between the heat generating layer and the bracket.

3. 3. The hair curler according to claim 2, wherein the outer thermally conductive layer, the heat generating layer, and the inner thermally conductive layer or the inner insulating layer are all provided with notches, the bracket is provided with an L-shaped groove extending vertically inside the bracket, the L-shaped groove and the notch are provided with an L-shaped lock block, and the L-shaped lock block is movable on the L-shaped groove and the notch only in the axial direction of the heating part.

4. 4. The hair curler according to claim 3, wherein the external heat conduction layer is provided with an L-shaped engaging lug extending vertically on the bracket, and an engaging lug surface is provided in the L-shaped groove in correspondence with the L-shaped engaging lug, so that the external heat conduction layer is moved along the axial direction of the bracket.

5. 3. The hair curler according to claim 2, wherein the outer and inner thermally conductive layers are made of titanium metal thermally conductive material, and the heat-generating layer is a heat-generating film.

6. 6. The hair curler according to claim 1, wherein a pressing part is provided on the handle, and a clamping force for the hair is generated between the pressing part and the heating part.

7. 7. The hair curler according to claim 6, wherein the pressing unit includes a pressing spring connected to the handle and an aluminum clip installed on a surface of the heating unit and connected to the pressing spring, the pressing unit further includes a pressing handle connected to the aluminum clip, wherein when the pressing handle receives a force, it compresses the pressing spring and moves the aluminum clip to move it away from the heating unit, and when the pressing force of the pressing handle is released, it restores the deformation of the compression spring and moves the aluminum clip to move it towards the heating unit.

8. 2. The hair curler according to claim 1, wherein one end of the heating unit is connected to a handle and the other end is connected to a rocket nozzle to form an independent space inside the hair curler, and the other end of the handle is connected to a conductive connection wire for a control board.

9. 9. The hair curler according to claim 8, wherein the connecting wire includes a male end connected to a control board and a female end connected to a commercial power source, the male end being inserted into the female end to supply electricity to the control board.

10. 9. The hair curler according to claim 8, wherein a silicone ring is provided at a connection portion between the handle and the heating portion, a pressure relief hole is provided in the handle, a pressure relief valve is provided in the silicone ring and is inserted into the pressure relief hole, and an air plug is provided at an end of the pressure relief valve, wherein when the pressure relief valve is pressed, the air plug is moved to open the pressure relief hole, and when the pressing force on the pressure relief valve is released, the air plug is moved to the pressure relief hole to seal it.

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