Hot air type hair straightener

Abstract

The utility model discloses a hot air type hair straightener which comprises an upper shell, a lower shell, a heater, an upper clamping plate, a lower clamping plate, an air guide cover and an air supply motor. The upper shell is located above the lower shell, the upper shell and the lower shell are rotatably connected through a rotating shaft, a hair clamping space is formed between the upper clamping plate and the lower clamping plate, and the air outlet end of the air supply motor faces the hair clamping space; a wind scooper is arranged outside the upper shell and the lower shell in a surrounding mode, first air outlets are formed in the two side walls of the wind scooper respectively, and second air outlets are formed in the edge of the vertical wall face of the wind scooper. Airflow generated by the air supply motor can be combined with heat generated by the heater to form hot airflow, the hot airflow is evenly blown to the hair clamping space and the surrounding area through the first air outlet and the second air outlet, and direct heating of hair and preheating of surrounding hair can be achieved. Hair damage caused by local overheating of a traditional hair straightener is avoided, multiple times of straightening operation are reduced, and therefore the straightening efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of hair straighteners, and more particularly to a hot air hair straightener. Background Technology

[0002] A hair straightener is a hair styling tool that uses heat to straighten or adjust hair to a smooth, straight state. It works by using the high temperature generated by the heating plate to apply heat to the hair, causing a physical change in the keratin molecular structure in the hair, thereby achieving a straightening effect.

[0003] In existing technologies, traditional hair straighteners only achieve heat transfer through contact between the heating plate and the hair. The heating area is limited and uneven, which can easily cause local overheating and damage to the hair. In addition, this type of hair straightener cannot effectively handle wet hair. Users must dry their hair completely before straightening it, which is cumbersome and inconvenient for users, affecting their user experience.

[0004] Therefore, existing technologies have shortcomings and need to be improved. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a hot air hair straightener that is easy to use and heats evenly.

[0006] To achieve this objective, the present invention adopts the following technical solution: a hot air hair straightener, comprising an upper shell, a lower shell, a heater, an upper clamping plate, a lower clamping plate, an air guide shroud, and a blower motor;

[0007] The upper housing is located above the lower housing. The upper housing includes a first clamping part and a first rotating handle part. The lower housing includes a second clamping part and a second rotating handle part. The first rotating handle part and the second rotating handle part are rotatably connected by a rotating shaft.

[0008] The first clamping part and the second clamping part are provided with a first accommodating cavity. The heater is disposed in the first accommodating cavity and is used to generate heat. The upper clamping plate is disposed on the lower end face of the first clamping part and the lower clamping plate is disposed on the upper end face of the second clamping part. A clamping space is formed between the upper clamping plate and the lower clamping plate.

[0009] The second rotating handle has a second accommodating cavity inside, and the blower motors are all located in the second accommodating cavity, with the air outlet of the blower motors facing the hair clamping space.

[0010] The outer wall of the second rotating handle is provided with an air outlet channel, and the outer wall of the first clamping part is provided with an air inlet channel. The air outlet channel is used to guide the airflow generated by the blower motor into the air inlet channel when the upper clamping plate and the lower clamping plate are in a clamping state.

[0011] The first clamping part and the second clamping part are surrounded by an air guide hood. The air guide hood has a U-shaped structure. The two side walls of the air guide hood are respectively provided with a first air outlet. The vertical wall edge of the air guide hood is provided with a second air outlet. The first air outlet and the second air outlet are respectively connected to the first accommodating cavity to discharge the hot airflow in the first accommodating cavity.

[0012] The hot air hair straightener described above also includes a circuit board, which is disposed in the second accommodating cavity. The heater and the blower motor are electrically connected to the circuit board.

[0013] The hot air hair straightener described above also includes a thermistor, and the heater is connected to the circuit board through the thermistor. The thermistor is used to detect the temperature of the heater.

[0014] The hot air hair straightener described above also includes a fuse connected to the heater. The fuse is used to melt when the temperature of the heater exceeds a threshold to achieve overload protection.

[0015] In the hot air hair straightener described above, the first clamping part and the second clamping part are detachably connected to the air guide cover, respectively.

[0016] The first clamping part and the second clamping part are provided with positioning protrusions on both side walls, and the air guide shroud is provided with positioning grooves that engage with the positioning protrusions on both side walls.

[0017] Using the above technical solution, in the hot air hair straightener, a button assembly is provided on the side wall of the lower housing. The button assembly is connected to the circuit board and is used to control the heating mode of the hair straightener.

[0018] In the hot air hair straightener described above, the bottom surface of the first rotating part is provided with a positioning block, and the top surface of the second rotating part is provided with a positioning slot for the positioning block to extend into.

[0019] In the hot air hair straightener described above, a cable management plate is provided inside the first rotating part, which is used to fix the cable connected to the heater.

[0020] In the hot air hair straightener described above, both the upper clamp and the lower clamp are made of aluminum alloy.

[0021] Using the above technical solution, in the hot air hair straightener, the surfaces of the upper clamp and the lower clamp are coated with a ceramic coating.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] This invention incorporates a blower motor within the lower housing. The airflow generated by the blower motor passes through the first accommodating cavity and combines with the heater to form a hot airflow. This hot airflow can be guided and blown to the hair-clamping space and surrounding area through the first and second air outlets, thereby directly heating the hair. This not only improves the uniformity of heat coverage within the hair-clamping space but also avoids hair damage caused by localized overheating in traditional hair straighteners. Furthermore, the hot airflow can be blown outside the hair-clamping area to preheat the surrounding hair, reducing the need for multiple straightening operations and thus improving the straightening efficiency of the hair straightener. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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.

[0025] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0028] Figure 3 This is a schematic diagram of the closed structure of the hair straightener of this utility model;

[0029] Figure 4 This is a schematic diagram of the exploded structure of the lower shell of this utility model;

[0030] Figure 5 This is a schematic diagram of the exploded structure of the upper shell of this utility model. Detailed Implementation

[0031] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0032] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing 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, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0033] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] like Figures 1 to 5 As shown, this utility model embodiment provides a hot air hair straightener, including an upper housing 1, a lower housing 2, a heater 3, an upper clamping plate 41, a lower clamping plate 42, an air guide shroud 5, and a blower motor 6. The upper housing 1 is located above the lower housing 2. The upper housing 1 includes a first clamping part 11 and a first rotating handle part 12. The lower housing 2 includes a second clamping part 21 and a second rotating handle part 22. The first rotating handle part 12 and the second rotating handle part 22 are rotatably connected by a rotating shaft 121. The first clamping part 11 and the second clamping part 21 are provided with a first receiving cavity 100. The heater 3 is disposed in the first receiving cavity 100 and is used to generate heat. The upper clamping plate 41 is located on the lower end face of the first clamping part 11, and the lower clamping plate 42 is located on the upper end face of the second clamping part 21. A hair-clamping space is formed between the upper clamping plate 41 and the lower clamping plate 42. When the hair straightener is in use, the heater 3 can generate heat, which rapidly heats up the upper clamping plate 41 and the lower clamping plate 42. Through contact with the hair, the heat is transferred to the hair fibers, thereby changing the molecular structure of the keratin inside the hair and achieving the hair straightening effect. The first rotating part 12 and the second rotating part 22 are rotatably connected by a rotating shaft 121, which can realize the opening and closing function of the straightener plates, allowing the user to conveniently clamp the hair in the hair-clamping space between the upper clamping plate 41 and the lower clamping plate 42.

[0035] The second rotating handle 22 has a second accommodating cavity 220 inside, and the blower motors 6 are all disposed in the second accommodating cavity 220. The air outlet end of the blower motor 6 is arranged facing the hair clamping space. An air outlet channel 221 is provided on the outer wall of the second rotating handle 22, and an air inlet channel 110 is provided on the outer wall of the first clamping part 11. The air outlet channel 221 is used to guide the airflow generated by the blower motor 6 into the air inlet channel 110 when the upper clamping plate 41 and the lower clamping plate 42 are in the hair clamping state. An air guide hood 5 is provided around the first clamping part 11 and the second clamping part 21. The air guide hood 5 has a U-shaped structure. The two side walls of the air guide hood 5 are respectively provided with a first air outlet 51, and the vertical wall edge of the air guide hood 5 is provided with a second air outlet 52. The first air outlet 51 and the second air outlet 52 are respectively connected to the first accommodating cavity 100 to discharge the hot airflow in the first accommodating cavity 100. During the hair straightening process, the airflow generated by the blower motor 6 can enter the first accommodating cavity 100 and combine with the heat generated by the heater 3 to form a hot airflow. The hot airflow can flow outward through the first air outlet 51 and the second air outlet 52, thereby achieving a uniform distribution of the hot airflow. In this way, the hot airflow can not only be concentrated in the hair clamping space to directly heat the hair, but also diffuse to the surrounding area outside the hair clamping space, thereby preheating the surrounding hair, reducing the need for multiple straightening operations in some areas and improving the hair straightening efficiency.

[0036] like Figure 4 As shown, it further includes a circuit board 7, which is disposed in the second accommodating cavity 220. The heater 3 and the blower motor 6 are electrically connected to the circuit board 7.

[0037] like Figure 4 As shown, the system further includes a thermistor 81. The heater 3 is connected to the circuit board 7 via the thermistor 81, which is used to detect the temperature of the heater 3. After the heater 3 starts heating, the thermistor 81 can sense the temperature change of the heater 3 and feed the temperature signal back to the circuit board 7. Based on the temperature data transmitted by the thermistor 81, the circuit board 7 adjusts the heating power of the heater 3 through its internal control circuit, enabling the heater 3 to quickly reach the set temperature and operate continuously in a constant temperature state, avoiding local overheating caused by overheating.

[0038] like Figure 4As shown, the device further includes a fuse 82 connected to the heater 3. The fuse 82 is used to melt when the temperature of the heater 3 exceeds a threshold value to achieve overload protection. During use, when the heater 3 is in normal operation, the fuse 82 will not affect the circuit, and current can be smoothly supplied to the heater 3 through the fuse 82. When the temperature of the heater 3 continues to rise and exceeds the safety threshold, the fuse 82 will quickly melt due to the excessive temperature, thereby cutting off the circuit and stopping the heater 3 from working, thus improving the safety of the hair straightener.

[0039] like Figure 4 and Figure 5 As shown, the first clamping part 11 and the second clamping part 21 are detachably connected to the air guide cover 5. Positioning protrusions 101 are provided on the side walls of the first clamping part 11 and the second clamping part 21, and positioning grooves 50 that engage with the positioning protrusions 101 are provided on the side walls of the air guide cover 5. This arrangement allows the user to disassemble, clean, or replace the air guide cover 5, thereby removing dust and impurities accumulated during long-term use, maintaining smooth airflow inside the device, and extending the service life of the hair straightener.

[0040] like Figure 1 As shown, further, a button assembly 9 is provided on the side wall of the lower housing 2. The button assembly 9 is connected to the circuit board 7. The button assembly 9 is used to control the heating mode of the hair straightener, so that the user can select a suitable heating mode according to the characteristics of their own hair. For example, the low temperature mode is suitable for fine and soft hair, and the high temperature mode is suitable for coarse and hard hair, thereby minimizing damage to the hair while ensuring the styling effect.

[0041] like Figure 1 As shown, the bottom surface of the first rotating handle 12 is provided with a positioning insert 122, and the top surface of the second rotating handle 22 is provided with a positioning slot 222 for the positioning insert 122 to extend into. When the user closes the hair straightener to clamp the hair, the positioning insert 122 can be embedded into the positioning slot 222, thereby preventing the upper shell 1 or the lower shell 2 from being misaligned during the hair clamping process.

[0042] like Figure 5 As shown, the first rotating handle 12 is further provided with a cable harness plate 102 inside. The cable harness plate 102 is used to fix the cable connected to the heater 3. Since the first rotating handle 12 is connected to the second rotating handle 22 through the rotating shaft 121, it has a certain range of opening and closing. The cable is easily worn or squeezed due to frequent bending or movement during the opening and closing process, which affects the stability of the circuit. By setting the cable harness plate 102, the position of the cable can be effectively fixed, avoiding the internal wire harness from being pulled, thereby extending the service life of the cable.

[0043] Furthermore, both the upper clamping plate 41 and the lower clamping plate 42 are made of aluminum alloy.

[0044] Furthermore, the surfaces of the upper clamping plate 41 and the lower clamping plate 42 are coated with a ceramic coating. The ceramic coating not only has excellent thermal conductivity, but also has a smooth surface and a low coefficient of friction. When it comes into contact with hair, it can increase the smoothness and shine of the hair, thereby enhancing the styling effect.

[0045] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A hot air type straightening iron characterized by comprising: The straightening device comprises an upper shell, a lower shell, a heater, an upper clamping plate, a lower clamping plate, a wind guide cover and a blowing motor. The upper shell is located above the lower shell, and the upper shell comprises a first clamping part and a first handle part, and the lower shell comprises a second clamping part and a second handle part, and the first handle part is rotatably connected to the second handle part through a rotating shaft. The first clamping part and the second clamping part are internally provided with a first accommodating cavity, the heater is arranged in the first accommodating cavity, the heater is used for generating heat, the upper clamping plate is arranged on the lower end surface of the first clamping part, the lower clamping plate is arranged on the upper end surface of the second clamping part, and the upper clamping plate and the lower clamping plate form a hair clamping space therebetween. The second handle part is internally provided with a second accommodating cavity, and the blowing motor is arranged in the second accommodating cavity. An air outlet channel is arranged on the outer wall of the second handle part, and an air inlet channel is arranged on the outer wall of the first clamping part. The first clamping part and the second clamping part are externally surrounded by the wind guide cover, the wind guide cover has a U-shaped structure, the two side walls of the wind guide cover are respectively provided with a first air outlet, and the vertical wall edge of the wind guide cover is provided with a second air outlet.

2. The hot air type straightening iron according to claim 1, wherein The first clamping part and the second clamping part are respectively detachably connected to the wind guide cover.

3. The hot air type straightening iron according to claim 2, wherein Positioning lugs are arranged on the two side walls of the first clamping part and the second clamping part, and the two side walls of the wind guide cover are provided with positioning grooves which are clamped with the positioning lugs.

4. The hot air type straightening iron according to claim 3, wherein A button assembly is arranged on the side wall of the lower shell, the button assembly is connected to the circuit board, and the button assembly is used for controlling the heating mode of the straightening device.

5. The hot air type straightening iron according to claim 1, wherein The bottom surface of the first handle part is provided with a positioning plug, and the top surface of the second handle part is provided with a positioning slot for the positioning plug to extend into. The first handle part is internally provided with a wire fixing plate which is used for fixing a wire connected to the heater.

6. The hot air type straightening iron according to claim 2, wherein The upper clamping plate and the lower clamping plate are both made of aluminum alloy material.

7. The hot air type straightening iron according to claim 1, wherein A ceramic coating is coated on the surface of the upper clamping plate and the lower clamping plate.

8. The hot air type straightening iron according to claim 1, wherein ​ 9. The hot air type straightening iron according to claim 1, wherein ​ 10. The hot air type straightening iron according to claim 9, wherein ​

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