Hair straightener

Abstract

The invention discloses a hair straightener, and relates to the field of hairdressing tools, the hair straightener comprises a lower clamping device and an upper clamping device, the lower clamping device comprises a lower shell, a lower heating assembly and a fan, the lower heating assembly is arranged on the upper side of the lower shell, and the lower shell is provided with an air inlet; the upper clamping device comprises an upper shell and an upper heating assembly, the upper shell is connected to the lower shell and can rotate towards or away from the lower shell, the upper heating assembly is arranged on the side, facing the lower heating assembly, of the upper shell, the upper shell or the lower shell is provided with an air outlet, the air outlet surrounds the upper heating assembly or the lower heating assembly, and the air inlet and the air outlet are communicated. And the fan is arranged between the air inlet and the air outlet. According to the hair straightener, low-temperature and uniform air can be blown out, the blown air directly acts on hair at a short distance, and the hair drying efficiency can be improved. In addition, the blown low-temperature air can enable the shaped hair to be quickly cooled and shaped, and the damage to the hair caused by residual heat after shaping is reduced.

Description

Technical Field

[0001] This invention relates to the field of hair styling tools, and in particular to a hair straightener. Background Technology

[0002] Hair straighteners are typically equipped with a fan to dry hair while straightening it. However, current technology often uses a single-sided airflow, resulting in severely uneven air distribution. This leads to poor drying results and an inability to dry hair evenly. Furthermore, the uneven airflow causes hair to become frizzy and unruly, significantly impacting the overall user experience. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a hair straightener capable of producing a relatively low-temperature and uniform airflow. The airflow acts directly on the hair at close range, which helps to improve the efficiency of drying hair. Furthermore, the low-temperature airflow allows the styled hair to cool and set quickly, reducing damage caused by residual heat after styling.

[0004] A hair straightener provided according to an embodiment of the present invention includes: The lower clamping device includes a lower housing, a lower heating component, and a fan. The lower heating component is located on the upper side of the lower housing. The lower housing has an air inlet located at the end of the lower housing away from the lower heating component. The upper clamping device includes an upper housing and an upper heating assembly. The upper housing is connected to the lower housing and can rotate toward or away from the lower housing. The upper heating assembly is located on the side of the upper housing facing the lower heating assembly. The upper housing is provided with an air outlet that surrounds the upper heating component; or the lower housing is provided with an air outlet that surrounds the lower heating component. The air inlet and the air outlet are connected, and the fan is located between the air inlet and the air outlet.

[0005] The hair straightener provided according to an embodiment of the present invention further includes an air duct assembly. When the air outlet is located in the upper housing, the air duct assembly is disposed in the upper housing; when the air outlet is located in the lower housing, the air duct assembly is disposed in the lower housing. The air duct assembly includes an upper air guide shell and a lower air guide shell. The lower air guide shell and the upper air guide shell are connected to define an air guide inlet and an air guide channel surrounding the lower heating assembly. The air guide inlet is located at one end of the air duct assembly near the fan. The upper air guide shell has an air guide outlet communicating with the air outlet and the air guide channel.

[0006] According to an embodiment of the present invention, the air guide channel includes two first air ducts and a second air duct connecting the two first air ducts. Both first air ducts are connected to the air guide inlet. The upper air guide shell is provided with an air guide plate, which is located in the middle of the air guide inlet and is used to simultaneously guide air into the two first air ducts.

[0007] According to an embodiment of the present invention, the lower air guide shell is provided with air guide ribs, which are located on the bottom wall of the air guide channel and extend from the air guide inlet toward the air guide outlet.

[0008] According to an embodiment of the present invention, the lower heating assembly includes a fixing frame, a heating plate, and a heating plate. The heating plate is disposed on the fixing frame, and the heating plate is connected to the fixing frame and wraps around the heating plate. The upper side of the upper air guide shell is provided with a mounting groove, and the fixing frame is installed in the mounting groove.

[0009] The hair straightener provided according to an embodiment of the present invention further includes a control device, the control device including a control board, a blow-dry control button, a heating control button, and a power control button. The control board is disposed on the upper housing, the blow-dry control button, the heating control button, and the power control button are connected to the upper housing and exposed on the outer wall of the upper housing, the blow-dry control button is electrically connected to the control board and the blower, the heating control button is electrically connected to the control board, the upper heating assembly, and the lower heating assembly, and the power control button is electrically connected to the control board.

[0010] According to an embodiment of the present invention, the control device of the hair straightener further includes a Hall sensor and a Hall switch. The Hall sensor is disposed in the lower housing, and the Hall switch is disposed in the upper housing. The Hall switch is electrically connected to the control board and the fan.

[0011] According to an embodiment of the present invention, the hair straightener further includes comb teeth, which are detachably connected to the lower housing and located on one side of the lower heating assembly.

[0012] According to an embodiment of the present invention, the lower housing is provided with a insertion groove arranged along the length direction, and the lower end of the comb teeth is provided with an insertion plate, which is inserted into the insertion groove.

[0013] According to an embodiment of the present invention, the air outlet is provided in the lower housing, the upper housing is provided with an exhaust port, the exhaust port surrounds the upper heating component and communicates with the air outlet; or, the air outlet is provided in the upper housing, the lower housing is provided with an exhaust port, the exhaust port surrounds the lower heating component and communicates with the air outlet.

[0014] The hair straightener provided according to embodiments of the present invention has at least the following beneficial effects: the lower housing of the lower clamping device is provided with an air outlet surrounding the lower heating component, and the air inlet is located at the end of the lower housing away from the lower heating component; the fan is disposed between the air inlet and the air outlet. This allows air to be blown out from the air outlet surrounding the lower heating component in multiple directions after the fan is activated. This multi-directional airflow greatly improves the uniformity of airflow, ensuring that the air evenly covers the hair, allowing all parts of the hair to be simultaneously affected by the airflow, thus drying quickly and evenly. Simultaneously, because the airflow is uniform, it avoids the situation where the hair is blown out of shape due to excessive localized airflow, providing users with a better drying effect and overall user experience.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 A schematic diagram of an overall straightener provided for an embodiment of the present invention; Figure 2 An exploded view of the lower clamping device provided in an embodiment of the present invention; Figure 3 A cross-sectional view of a hair straightener provided in an embodiment of the present invention; Figure 4 An exploded view of the air duct assembly provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the upper clamping device provided in an embodiment of the present invention; Figure 6 A cross-sectional view of a hair straightener provided for an embodiment of the present invention; Figure 7 A cross-sectional view of the lower clamping device provided in an embodiment of the present invention; Figure 8 A schematic diagram of an overall straightener provided in another embodiment of the present invention; Figure 9 A cross-sectional view of a hair straightener provided in another embodiment of the present invention.

[0017] The attached icons are numbered as follows: 100. Lower clamping device; 110. Lower housing; 111. Air inlet; 112. Air outlet; 113. Insertion slot; 120. Lower heating assembly; 121. Fixing frame; 122. Heating plate; 123. Hot plate; 124. Fixing plate; 125. Pressure cap; 126. Heat insulation plate; 130. Fan; 140. Air duct assembly; 141. Upper air guide shell; 142. Lower air guide shell; 143. Air guide inlet; 144. Air guide channel; 145. Air guide outlet; 146. Air guide plate; 147. Air guide rib; 148. Mounting slot; 150. Comb teeth; 151. Insert plate; 160. Air guide tube; 200. Upper clamping device; 210. Upper housing; 211. Exhaust vent; 220. Upper heating component; 230. Air inlet; 300. Control device; 310. Control board; 320. Air blowing control button; 330. Heating control button; 340. Power control button; 350. Hall effect sensor; 360. Hall effect switch. Detailed Implementation

[0018] Embodiments of the present invention are described in detail below. Examples of these embodiments 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 are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 limiting this invention.

[0020] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0021] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0022] Hair straighteners are typically equipped with a fan to dry hair while straightening it. However, current technology often uses a single-sided airflow, resulting in severely uneven air distribution. This leads to poor drying results and an inability to dry hair evenly. Furthermore, the uneven airflow causes hair to become frizzy and unruly, significantly impacting the overall user experience.

[0023] To address the aforementioned problems, embodiments of the present invention provide a hair straightener. The specific structure and function of the hair straightener provided in the embodiments of the present invention will be described below with reference to text and accompanying drawings.

[0024] Reference Figures 1 to 7 According to an embodiment of the present invention, a hair straightener includes a lower clamping device 100 and an upper clamping device 200. The lower clamping device 100 includes a lower housing 110, a lower heating assembly 120, and a fan 130. The lower housing 110 is made of a high-strength plastic material, which has a certain degree of toughness and heat resistance, and can ensure that it is not easily deformed or damaged during long-term use.

[0025] The upper side of the lower housing 110 is flat and is divided into a hand-held part and a straightening part along its length. The hand-held part is roughly cylindrical and the straightening part is roughly flat. The lower heating component 120 is disposed on the straightening part of the lower housing 110 and exposed on the upper side of the lower housing 110. When in use, the heat generated by the lower heating component 120 can be transferred to the hair, thereby achieving an efficient hair straightening effect.

[0026] The lower housing 110 is provided with an air inlet 111 and an air outlet 112. The air inlet 111 is located at the end of the handle away from the lower heating assembly 120, and its shape and width can be reasonably set according to the overall size of the hair straightener and the air volume requirements to ensure that sufficient air can be drawn in. The air outlet 112 is located in the straightening section and surrounds the lower heating assembly 120.

[0027] The handheld part of the lower housing 110 is roughly cylindrical to form an air intake channel inside. The fan 130 is set in the air intake channel and located between the air inlet 111 and the air outlet 112. The high-speed fan 130 has the advantages of large air volume and low noise, and can accelerate the air drawn in from the air inlet 111 and blow it out evenly through the air outlet 112.

[0028] The upper clamping device 200 includes an upper housing 210 and an upper heating component 220. The upper housing 210 is connected to the lower housing 110 via a hinge or pivot, allowing the upper housing 210 to rotate toward or away from the lower housing 110 for easy clamping and release of hair. The upper heating component 220 is mounted on the side of the upper housing 210 facing the lower heating component 120, and works in conjunction with the lower heating component 120 to heat and straighten the hair.

[0029] In actual use, when using the hair straightener of this invention, the user first divides the hair into several strands, then places one strand on the lower heating component 120. Next, the upper housing 210 is rotated so that the upper heating component 220 and the lower heating component 120 clamp the hair. At this time, the power of the hair straightener is turned on, and the lower heating component 120 and the upper heating component 220 begin to heat up. Simultaneously, the fan 130 operates, drawing in air from the air inlet 111 and blowing it out evenly through the air outlet 112 to dry and straighten the hair. During the straightening process, due to the even airflow, the hair can be dried quickly and evenly without becoming messy.

[0030] Reference Figure 6 and Figure 7 Optionally, a circuit board for controlling the fan 130 is installed in the air inlet channel. During operation, as air is drawn in from the air inlet 111 and passes through the air outlet 112, the air can carry away the heat emitted by the electronic components on the circuit board, thereby achieving a cooling effect.

[0031] According to the hair straightener provided in this embodiment of the invention, air is blown out from the air outlet 112 of the surrounding lower heating assembly 120 in multiple directions. This multi-directional airflow greatly improves the uniformity of the airflow, allowing the air to evenly cover the hair, ensuring that all parts of the hair are simultaneously affected by the airflow, thus drying quickly and evenly. At the same time, because the airflow is uniform, it avoids the situation where the hair is blown out of shape due to excessive localized airflow, providing users with a better drying effect and overall user experience.

[0032] Optionally, the air outlet 112 is provided with a grille to form a structure of multiple evenly distributed small holes. These small holes have a small diameter, which can ensure the air volume while making the airflow more evenly dispersed to the surrounding space.

[0033] Optionally, since the air intake channel of the hair straightener does not have a heating component, the hair straightener can blow out a relatively low temperature and even air. The blown air acts directly on the hair at close range, which helps to improve the efficiency of drying the hair. In addition, the low temperature air blown out can quickly cool and set the styled hair and reduce the damage caused by the residual heat after styling.

[0034] Reference Figure 8 and Figure 9In some embodiments, the air outlet 112 can also be located on the upper housing 210. In this case, the lower housing 110 is provided with an upwardly extending air guide duct 160, and the upper housing 210 is provided with an air inlet 230 on the side facing the lower housing 110. When the user rotates the upper housing 210 so that the upper heating component 220 and the lower heating component 120 clamp the hair, the air guide duct 160 on the lower housing 110 connects with the air inlet 230 of the upper housing 210. When the fan 130 is running, the air can enter through the air inlet 111, and then enter the upper housing 210 through the air guide duct 160 and the air inlet 230, and finally exit from the air outlet 112 on the upper housing 210.

[0035] Optionally, a grille and filter can be installed at the air inlet 230 to prevent foreign objects from entering.

[0036] Refer to 2 to Figure 4 According to an embodiment of the present invention, the hair straightener further includes an air duct assembly 140. When the air outlet 112 is located in the lower housing 110, the air duct assembly 140 is located inside the lower housing 110; when the air outlet 112 is located in the upper housing 210, the air duct assembly 140 is located inside the upper housing 210. The air duct assembly 140 includes an upper air guide shell 141 and a lower air guide shell 142, which are tightly connected by a snap-fit ​​connection or screw fixation. After the lower air guide shell 142 and the upper air guide shell 141 are connected, an air guide inlet 143 and an air guide channel 144 surrounding the lower heating assembly 120 are defined inside. This air guide channel 144 is generally U-shaped, which enables the airflow to form a relatively stable flow path within the channel, reducing airflow turbulence and energy loss.

[0037] The air inlet 143 is located at the end of the air duct assembly 140 near the fan 130. When the fan 130 is running, the air drawn in from the air inlet 111 first enters the air inlet 143, and then flows into the air duct 144. Since the air duct 144 is arranged around the lower heating assembly 120, the airflow can circulate around the lower heating assembly 120 and exit during the flow process.

[0038] An air outlet 145 is provided on the upper air guide shell 141, which connects the air outlet 112 and the air guide channel 144. The airflow, guided by the air guide channel 144, is then blown out in a uniform airflow form through the air outlet 145, thereby drying and straightening the hair located between the upper heating component 220 and the lower heating component 120. This not only improves the uniformity of airflow but also allows heat to be applied to the hair more effectively, enhancing the overall performance and effectiveness of the hair straightener.

[0039] Optionally, the air duct assembly 140 can be fixed to the lower housing 110 or the upper housing 210 by means of snap-fit ​​connection or screw fixation to ensure the reliability of the connection.

[0040] Optionally, in addition to setting the air duct assembly 140, an integrally formed multi-segment baffle can also be set inside the lower housing 110 or the upper housing 210. The multi-segment baffle cooperates with the wall of the lower housing 110 to form an air guide channel 144.

[0041] Refer to 2 to Figure 4 According to the hair straightener provided in the embodiment of the present invention, the air guide channel 144 includes two first air channels and a second air channel. The two first air channels are respectively disposed on both sides of the lower heating assembly 120, and the second air channel and the air guide inlet 143 are respectively disposed at opposite ends of the two first air channels. The second air channel connects the two first air channels, and the air guide inlet 143 is directly connected to the two first air channels. This allows the air entering from the air guide inlet 143 to be quickly diverted and enter the two first air channels, and then flow to the second air channel.

[0042] An air guide plate 146 is provided on the first air guide shell. The air guide plate 146 is located in the middle of the air guide inlet 143 and has inclined surfaces on both sides to guide the air into the two first air ducts respectively. When the fan 130 is running, air is drawn into the air intake channel of the handheld part from the air inlet 111 and reaches the air guide inlet 143. The air guide plate 146 can evenly and simultaneously guide the incoming airflow into the two first air ducts. For example, after the airflow encounters the air guide plate 146 at the air guide inlet 143, due to the guiding effect of the air guide plate 146, part of the airflow enters one of the first air ducts along the inclined surface on one side of the air guide plate 146, and the other part of the airflow enters the other first air duct along the inclined surface on the other side of the air guide plate 146, thus realizing the reasonable diversion of airflow.

[0043] The two first air ducts are arranged in parallel and each has an air guide outlet 145 at its top, so that the split airflow can be blown out from the air guide outlet 112. The second air duct is located at the end of the air duct assembly 140 away from the air guide inlet 143, and its top is also provided with an air guide outlet 145, so that the airflow from the convergence of the two first air ducts can also be discharged through the air guide outlet 145.

[0044] Reference Figure 3 and Figure 4 According to the hair straightener provided in this embodiment of the invention, the wall surface of the lower air guide shell 142 protrudes to form air guide ribs 147. The air guide ribs 147 extend from the air guide inlet 143 toward the air guide outlet 145. During operation, the fan 130 is started, and air is drawn in from the air inlet 111 and enters the air guide inlet 143, then flows along the air guide channel 144. At this time, the air guide ribs 147 located on the bottom wall of the air guide channel 144 can guide the airflow, allowing the air to flow out from the upper air guide outlet 145.

[0045] Refer to 2 to Figure 4According to the hair straightener provided in the embodiment of the present invention, the lower heating assembly 120 includes a fixing frame 121, a heating plate 122 and a heating plate 123. The heating plate 122 and the heating plate 123 are both fixed on the fixing frame 121. The upper side of the upper air guide shell 141 is recessed to form a mounting groove 148. The fixing frame 121 is fixed in the mounting groove 148 by screws, thereby improving the compactness of the overall structure.

[0046] Optionally, the fixing frame 121 has a certain degree of high temperature resistance, capable of withstanding some of the heat during the hair straightening process. The outer side of the straightening plate 123 is roughly flat to facilitate full contact with the user's hair. Two fixing plates 124 are spaced apart on the inner side of the straightening plate 123. The outer sides of the two fixing plates 124 are provided with buckles that engage with the fixing frame 121. The heating plate 122 is located inside the straightening plate 123 and between the two fixing plates 124. The two fixing plates 124 can be bent to wrap around the heating plate 122. During use, the heat emitted by the heating plate 122 can be directly transferred to the straightening plate 123, thereby straightening the user's hair.

[0047] It should be noted that the heating plate 122 is a PTC heating plate, and the straightening plate 123 is formed using a pure aluminum cold extrusion process. After extrusion, the material density is higher and the distribution is more uniform. The material is pure aluminum or AL1050 / 1070, and its thermal conductivity can reach over 231 W / (m·K). The thickness of the straightening plate 123 can be controlled to ≤0.9mm. Due to the thinness of the straightening plate 123, combined with the high thermal conductivity of pure aluminum, the heat transfer efficiency of the heating plate 122 is significantly improved during heating. During use, even if the hair carries away some heat, the pure aluminum cold extrusion process still allows the straightening plate 123 to heat up and cool down faster, thereby effectively improving the straightening efficiency.

[0048] Optionally, the lower heating assembly 120 also includes a pressure cover 125, which is disposed between the heating plate 123 and the fixing bracket 121. When the two fixing plates 124 are bent, they can simultaneously wrap the heating plate 122 and the pressure cover 125, thereby fixing the heating plate 122 and the pressure cover 125.

[0049] It should be noted that the pressure cap 125 has a certain degree of heat insulation, which can reduce the heat transfer from the heating plate 122 to the fixing frame 121, so that the heat from the heating plate 122 can be fully transferred to the heating plate 123 to achieve faster heating.

[0050] It should be noted that the upper heating component 220 and the lower heating component 120 have the same composition and structure to ensure the interchangeability of components during assembly.

[0051] Optionally, a heat insulation plate 126 is provided between the fixing frame 121 and the upper air guide shell 141. The heat insulation plate 126 can be made of heat insulation cotton aerogel to reduce heat transfer from the fixing frame 121 to the upper shell 210, so that the temperature of the air blown out by the hair straightener is close to room temperature, thereby quickly cooling the hair and reducing the heat damage to the hair during the straightening process.

[0052] Reference Figure 1 and Figure 6 The hair straightener provided according to an embodiment of the present invention further includes a control device 300, which includes a control board 310, a blow-dry control button 320, a heating control button 330, and a power control button 340. The control board 310 is disposed inside the upper housing 210 and undertakes the important tasks of signal processing and command transmission. The blow-dry control button 320, the heating control button 330, and the power control button 340 are connected to the upper housing 210 and exposed on the outer wall of the upper housing 210 for easy operation by the user. These buttons are shaped for easy pressing, and corresponding markings can be provided on their surfaces to clearly indicate their functions.

[0053] The hair dryer control button 320 is electrically connected to the control board 310 and the fan 130. When the user presses the hair dryer control button 320, a signal is transmitted to the control board 310, which then controls the fan 130 to start and stop according to the command. For example, when the user needs to use the hair straightener's hair dryer function, the user only needs to press the hair dryer control button 320, and the fan 130 will start running, drawing in outside air and blowing it out from the air outlet 112 after passing through the air guide channel 144; pressing the button again will stop the fan 130 from working.

[0054] The heating control button 330 is also electrically connected to the control board 310, the upper heating component 220, and the lower heating component 120. The user can control the start and stop of the upper heating component 220 and the lower heating component 120 by operating the heating control button 330. When the heating control button 330 is pressed to activate the heating function, the control board 310 sends a power-on command to the upper heating component 220 and the lower heating component 120, causing them to start heating and providing the necessary heat for straightening the hair; when the heating function is deactivated, the control board 310 cuts off the power, causing the heating components to stop heating.

[0055] The power control button 340 is electrically connected to the control board 310 and functions as the main power switch. Pressing the power control button 340 connects the main power supply to the hair straightener, putting it into standby or operating mode; pressing it again disconnects the main power, stopping the device. This allows users to easily control the power supply to the hair straightener, ensuring safety and convenience. For example, when the hair straightener is not in use for an extended period, users can completely shut it off by pressing the power control button 340, avoiding unnecessary energy consumption and potential safety hazards.

[0056] Optionally, the control device 300 also includes a gear indicator light. Multiple gear indicator lights are provided on one side of the blower control button 320 and the heating control button 330. For example, three gear indicator lights are provided on one side of the blower control button 320 and the heating control button 330 to display different gears. Different gears can be controlled by pressing the blower control button 320 and the heating control button 330.

[0057] Optionally, the heating plate 122 is a PTC heating plate, and a temperature sensor is provided on one side. The temperature setting can be adjusted via the heating control button 330. The temperature sensor can detect the temperature of the PTC heating plate in real time, so that the PTC heating plate is kept within the temperature range of the specified setting. For example, the temperature setting can be set to three levels: 140 degrees, 160 degrees, and 220 degrees. During use, the user can adjust the temperature setting according to their needs.

[0058] Reference Figure 6 According to the hair straightener provided in the embodiment of the present invention, the control device 300 further includes a Hall sensor 350 and a Hall switch 360. The Hall sensor 350 is disposed on the lower housing 110, while the Hall switch 360 is installed at a corresponding position on the upper housing 210. The Hall switch 360 is electrically connected to the control board 310 and the fan 130 to form a complete sensing control circuit.

[0059] When the hair straightener is idle, i.e., when the upper clamping device 200 and the lower clamping device 100 are separated, there is no sensing signal between the Hall switch 360 of the upper housing 210 and the Hall sensor 350 of the lower housing 110. At this time, the Hall switch 360 is in the open state. Even if the user presses the blow-drying control button 320, because the Hall switch 360 is not conducting, the control board 310 will not send a start command to the blower 130, and the blower 130 will not start operating. This avoids the energy waste caused by the blower 130 running idly when the hair is not being straightened, and also reduces unnecessary noise generation.

[0060] When a user needs to use the hair straightener to straighten their hair, they press the control button on the blower 130 and rotate the upper clamping device 200 toward the lower clamping device 100. As the upper clamping device 200 rotates, the upper housing 210 gradually approaches the lower housing 110. When the Hall switch 360 of the upper housing 210 and the Hall sensor 350 of the lower housing 110 reach the sensing distance, a sensing signal is generated between them, and the Hall switch 360 is immediately turned on. The turned-on Hall switch 360 transmits the signal to the control board 310. After receiving the signal, the control board 310 determines that the user is using the hair straightener to straighten their hair, and then sends a start command to the blower 130. The blower 130 starts running, drawing in air and blowing it out from the air outlet 112 after passing through the air guide channel 144, working with the heating element to dry and straighten the hair.

[0061] For example, in daily use, when a user picks up the hair straightener to straighten their hair, the fan 130 will not start until the hair is clamped between the upper and lower clamping devices 100. When the user places the hair between the upper clamping device 200 and the lower clamping device 100 and closes them, the Hall switch 360 senses the signal, and the fan 130 immediately starts and begins normal operation. This Hall-sensing-based control method enables the fan 130 to start when clamping hair and stop when not clamping hair, effectively improving the energy efficiency of the hair straightener, reducing operating costs, and enhancing the user experience.

[0062] Reference Figures 1 to 3 According to the embodiments of the present invention, the lower clamping device 100 of the hair straightener further includes comb teeth 150, which are detachably connected to the lower housing 110 and located on one side of the lower heating assembly 120. During use, users can flexibly choose whether to install the comb teeth 150 according to their own usage habits and actual needs. For example, users with less hair and smoother hair may feel that they can straighten their hair well without installing the comb teeth 150. In this case, the comb teeth 150 can be removed to reduce the overall weight of the hair straightener and make the operation more convenient. For users with more hair and hair that is prone to tangling, installing the comb teeth 150 can play a good combing role.

[0063] Furthermore, when the comb teeth 150 wear out or become damaged after prolonged use, or when users want to replace them with comb teeth 150 of different specifications and materials to suit different hairstyle needs, the detachable design makes the replacement process simple and quick. Users can easily remove the old comb teeth 150 and install the new comb teeth 150 by following specific disassembly methods, such as rotating or plugging them in.

[0064] During the use of the hair straightener, when the user clamps their hair between the upper and lower clamping devices 100, the comb teeth 150 can first comb the hair, making the hair neater and smoother as it enters the heating area. In this way, when the hair is heated and straightened by the lower heating component 120 and the upper heating component 220, the hair can be heated evenly, avoiding problems such as local overheating or poor straightening effect caused by hair tangling or knotting.

[0065] Reference Figures 1 to 3 According to an embodiment of the present invention, the lower housing 110 is provided with an insertion groove 113 arranged along the length direction, and the lower end of the comb teeth 150 is provided with an insertion plate 151. The size and shape of the insertion groove 113 are adapted to the insertion plate 151 provided at the lower end of the comb teeth 150. The size, thickness and edge shape of the insertion plate 151 correspond to the insertion groove 113, ensuring that the insertion plate 151 can be smoothly inserted into the insertion groove 113 without shaking or loosening.

[0066] When installing the comb teeth 150, the user simply aligns the insert plate 151 at the lower end of the comb teeth 150 with the insertion slot 113 on the lower housing 110, and then smoothly inserts it along the length of the insertion slot 113. During insertion, the insert plate 151 fits tightly against the inner wall of the insertion slot 113. Due to the friction between them and the matching of their shapes, the insert plate 151 is fixed in the insertion slot 113. This insertion method is simple and easy to perform, requiring no additional tools, and even users who are using a hair straightener for the first time can easily install the comb teeth 150.

[0067] When it is necessary to remove the comb teeth 150, the user can simply pull the insert plate 151 out of the insertion slot 113 in the opposite direction to the insertion direction.

[0068] Reference Figure 1 and Figure 5 According to the hair straightener provided in the embodiments of the present invention, when the air outlet 112 is provided in the lower housing 110, the upper housing 210 is provided with an exhaust port 211, which is arranged around the upper heating component 220; when the air outlet 112 is provided in the upper housing 210, the lower housing 110 is provided with an exhaust port 211, which is arranged around the lower heating component 120. Taking the example of the air outlet 112 being provided in the lower housing 110 and the upper housing 210 being provided with an exhaust port 211, the exhaust port 211 is arranged around the upper heating component 220 and remains in communication with the air outlet 112 of the hair straightener. This allows the air blown out from the air outlet 112 of the lower housing 110 to be smoothly discharged through the exhaust port 211.

[0069] When the hair straightener is started, the fan 130 draws in outside air, creating a breeze that is then blown out from the air outlet 112 of the lower housing 110. Since the exhaust vent 211 surrounds the heating element 220 and is connected to the air outlet 112, during the blowing process, part of the air directly acts on the hair clamped between the upper and lower clamps 100; while the other part of the air is discharged to the outside of the hair straightener through the exhaust vent 211, ensuring normal airflow.

[0070] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A hair straightener, characterized in that, include: The lower clamping device (100) includes a lower housing (110), a lower heating assembly (120), and a fan (130). The lower heating assembly (120) is located on the upper side of the lower housing (110). The lower housing (110) is provided with an air inlet (111), which is located at the end of the lower housing (110) away from the lower heating assembly (120). The upper clamping device (200) includes an upper housing (210) and an upper heating assembly (220). The upper housing (210) is connected to the lower housing (110) and can rotate toward or away from the lower housing (110). The upper heating assembly (220) is located on the side of the upper housing (210) facing the lower heating assembly (120). The upper housing (210) is provided with an air outlet (112) which surrounds the upper heating component (220), or the lower housing (110) is provided with an air outlet (112) which surrounds the lower heating component (120). The air inlet (111) and the air outlet (112) are connected, and the fan (130) is located between the air inlet (111) and the air outlet (112).

2. The hair straightener according to claim 1, characterized in that, It also includes a duct assembly (140), which is located on the upper housing (210) when the air outlet (112) is located on the lower housing (110); the duct assembly (140) is located on the lower housing (110) when the air outlet (112) is located on the lower housing (110); the duct assembly (140) includes an upper air guide shell (141) and a lower air guide shell (142), the lower air guide shell (142) and the upper air guide shell (141) are connected to define an air guide inlet (143) and an air guide channel (144) surrounding the lower heating assembly (120), the air guide inlet (143) is located at one end of the duct assembly (140) near the fan (130), and the upper air guide shell (141) is provided with an air guide outlet (145) connecting the air outlet (112) and the air guide channel (144).

3. The hair straightener according to claim 2, characterized in that, The air guide channel (144) includes two first air ducts and a second air duct connecting the two first air ducts. Both first air ducts are connected to the air guide inlet (143). The upper air guide shell (141) is provided with an air guide plate (146). The air guide plate (146) is located in the middle of the air guide inlet (143) and is used to simultaneously guide air into the two first air ducts.

4. The hair straightener according to claim 2, characterized in that, The lower air guide shell (142) is provided with air guide ribs (147), which are located on the bottom wall of the air guide channel (144) and extend from the air guide inlet (143) toward the air guide outlet (145).

5. The hair straightener according to claim 2, characterized in that, The lower heating assembly (120) includes a fixing frame (121), a heating plate (122), and a heating plate (123). The heating plate (123) wraps around the heating plate (122) and is connected to the fixing frame (121). The upper air guide shell (141) has an installation groove (148) on its upper side, and the fixing frame (121) is installed in the installation groove (148).

6. The hair straightener according to claim 1, characterized in that, It also includes a control device (300), which includes a control board (310), a blower control button (320), a heating control button (330), and a power control button (340). The control board (310) is located on the upper housing (210). The blower control button (320), the heating control button (330), and the power control button (340) are connected to the upper housing (210) and exposed on the outer wall of the upper housing (210). The blower control button (320) is electrically connected to the control board (310) and the fan (130). The heating control button (330) is electrically connected to the control board (310), the upper heating assembly (220), and the lower heating assembly (120). The power control button (340) is electrically connected to the control board (310).

7. The hair straightener according to claim 6, characterized in that, The control device (300) further includes a Hall sensor (350) and a Hall switch (360). The Hall sensor (350) is located on the lower housing (110), and the Hall switch (360) is located on the upper housing (210). The Hall switch (360) is electrically connected to the control board (310) and the fan (130).

8. The hair straightener according to claim 1, characterized in that, The lower clamping device (100) also includes comb teeth (150), which are detachably connected to the lower housing (110) and located on one side of the lower heating assembly (120).

9. The hair straightener according to claim 8, characterized in that, The lower housing (110) is provided with a insertion groove (113) arranged along the length direction, and the lower end of the comb teeth (150) is provided with an insertion plate (151), which is inserted into the insertion groove (113).

10. The hair straightener according to claim 1, characterized in that, The air outlet (112) is located on the lower housing (110), and the upper housing (210) is provided with an exhaust port (211). The exhaust port (211) surrounds the upper heating component (220) and communicates with the air outlet (112). Alternatively, the air outlet (112) is located on the upper housing (210), and the lower housing (110) is provided with an exhaust port (211). The exhaust port (211) surrounds the lower heating component (120) and communicates with the air outlet (112).

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