A light-powered hair styling device with temperature protection

Abstract

This utility model discloses a light-powered hair styling device with temperature protection. The device includes a main unit, a curling tube, a light-emitting lamp, and a PCBA control board. The curling tube is connected to the main unit, and the light-emitting lamp is located inside the curling tube. The light-emitting lamp is connected to the PCBA control board via a conductive wire, with a temperature protection device connected to the middle section of the conductive wire. The PCBA control board is also connected to an NTC temperature sensor, which extends into the inside of the curling tube. This utility model, through the coordinated operation of the NTC temperature sensor and the temperature protection device, forms a double protection mechanism. Even in extreme scenarios where a single protection unit fails, it reliably ensures that the hair styling device will not experience temperature runaway, reducing the probability of equipment damage, hair damage, or even fires caused by high temperatures, and improving the safety and reliability of the product.

Description

Technical Field

[0001] This utility model relates to the field of hair styling equipment technology, and in particular to a light-energy hair styling equipment with temperature protection. Background Technology

[0002] As a key device for daily styling, the performance optimization and safety improvement of hair styling tools have always been the core directions of industry research and development. Current hair styling tool heating technologies mainly rely on PTC (positive temperature coefficient thermistor) or MCH (metal-ceramic heater) heating elements. These two types of heating elements achieve temperature rise through resistance heating, which has advantages such as low cost and mature technology, but also has significant limitations in practical applications: First, the heating rate of PTC / MCH heating elements is limited by the thermal inertia of the material, requiring users to wait a relatively long time to reach the required styling temperature, resulting in a poor experience, especially in low-temperature environments or emergency use scenarios; second, their thermal efficiency is relatively low, with some energy lost through heat conduction, leading to high energy consumption.

[0003] In recent years, carbon fiber lamps have gradually entered the hair styling device field as a new type of heating element. This technology achieves heating by exciting infrared radiation through carbon fiber filaments under an electric field. Its core advantages are: high radiative heat transfer efficiency, with heat acting directly on the hair rather than through air conduction, reducing energy loss; significantly improved heating speed, with the carbon fiber lamp reaching operating temperature (measured surface temperature reaching approximately 700℃) within seconds, 3-5 times faster than traditional heating elements; and sensitive thermal response, with a high degree of matching between the infrared wavelength and the hair's moisture absorption peak, helping to reduce heat damage. However, the high-temperature characteristics of carbon fiber lamps (700℃ operating temperature) pose a significant challenge to the temperature control systems of existing hair styling devices.

[0004] Current hair styling devices generally use NTC (negative temperature coefficient) thermistors as temperature sensors. Their working principle involves detecting the surface temperature of the heating element and feeding it back to the control circuit to achieve closed-loop regulation of the preset temperature. However, NTC sensors have the following risks: under extreme conditions (such as voltage fluctuations or component aging) or circuit failures, signal distortion may cause temperature control failure, leading to continuous heating of the heating element. The high heat density of carbon fiber lamps further amplifies this risk; if the temperature runs out of control, it may cause hair burns, equipment damage, or even a fire hazard. Although some products improve reliability by optimizing the NTC layout or increasing calibration frequency, they still cannot fundamentally eliminate the possibility of uncontrolled temperature rise due to hardware failure.

[0005] To address the aforementioned issues, the industry urgently needs a technical solution that balances the high-efficiency heating advantages of carbon fiber lamps with safety. While existing technologies attempt to improve safety through dual NTC redundancy designs or mechanical temperature control switches, the former only delays the time of loss of control rather than completely cutting off the power, while the latter, due to its slow response speed (usually requiring temperature accumulation to reach a threshold before triggering), is ill-suited to handle the rapid heating characteristics of carbon fiber lamps. Therefore, how to leverage carbon fiber lamps to enhance the performance of hair styling tools while simultaneously constructing a multi-layered, highly reliable safety protection mechanism has become a critical technical bottleneck that urgently needs to be overcome in this field. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of existing light-powered hair styling devices that rely solely on NTC temperature sensors for temperature control and are subject to the risk of temperature runaway, and to provide a light-powered hair styling device with temperature protection.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] This utility model provides a light-powered hair styling device with temperature protection, comprising: a main unit, a curling tube, a light-emitting tube, and a PCBA control board. The curling tube is connected to the main unit, the light-emitting tube is disposed inside the curling tube, the light-emitting tube is connected to the PCBA control board via a conductive wire, and a temperature protection device is connected to the middle section of the conductive wire. The PCBA control board is also connected to an NTC temperature sensor, which extends into the inside of the curling tube.

[0009] In one specific embodiment, the curling tube is provided with a light-transmitting hole, and the light-emitting lamp tube generates heat and emits infrared rays when it works. The heat is transferred to the curling tube, and the infrared rays are emitted along the light-transmitting hole.

[0010] In one specific embodiment, mica supports are connected to both ends of the light-emitting tube inside the curling tube body. The light-emitting tube passes through the mica supports, and a mica plate is connected between the two mica supports. The mica plate is used to separate the light-emitting tube and the temperature protection device.

[0011] In one specific embodiment, the temperature fuse and the light-emitting tube are arranged in parallel, and the horizontal distance between the end of the temperature fuse and the end of the light-emitting tube is 20mm-30mm.

[0012] In one specific embodiment, the conductive wire is further sleeved with a fiberglass tube on the outside of the temperature protection element.

[0013] In one specific embodiment, the conductive wire is fixed to the mica plate by a wire clamp.

[0014] In one specific embodiment, the hair curling tube body is further provided with a light-transmitting sealing element at the position corresponding to the light-transmitting hole.

[0015] In one specific embodiment, the main unit is further provided with an elastic clip assembly on the outside of the curling tube body. The elastic clip assembly includes a compression spring and a clamping member. The compression spring is connected to the main unit, and the clamping member is hinged to the main unit and abuts against the compression spring.

[0016] In one specific embodiment, a sealing head is also connected to the end of the curling tube that is away from the main unit.

[0017] In one specific embodiment, the end of the sealing head away from the curling tube is also connected to a handheld component.

[0018] The advantages of this novel light-powered hair styling device with temperature protection compared to existing technologies are as follows: Firstly, the NTC temperature sensor connected to the PCBA control board extends into the inside of the curling tube, allowing real-time monitoring of temperature changes within the tube and transmitting the temperature signal to the PCBA control board. The PCBA control board then dynamically adjusts the heating state of the light-emitting lamp components according to a preset temperature threshold, achieving precise temperature control under normal operating conditions and preventing excessive temperature from damaging hair or causing safety hazards. Secondly, a temperature protection device is installed in the middle of the conductive wire connecting the light-emitting lamp components and the PCBA control board. This device serves as a backup safety protection unit. If the NTC temperature sensor malfunctions due to aging, poor contact, external interference, or other factors, or if the PCBA control board's temperature control logic malfunctions, this device will be used in case the NTC temperature sensor loses control due to aging, poor contact, or external interference, or if the PCBA control board's temperature control logic malfunctions. When conventional temperature control fails, the temperature fuse directly monitors the actual temperature inside the curling tube. Once the temperature exceeds its preset safety threshold, the temperature fuse will immediately burn out, cutting off the power supply to the LED tube and forcing the hair styling machine to stop, completely blocking the risk of further temperature increases. Compared to traditional single temperature control solutions that rely solely on NTC and circuit boards, this solution uses the synergy of the NTC temperature sensor and the temperature fuse to form a dual insurance mechanism of "active monitoring and control + passive emergency cut-off." Even in extreme scenarios where a single protection unit fails, it can still reliably ensure that the hair styling machine will not experience temperature runaway, fundamentally reducing the probability of safety accidents such as equipment damage, hair damage, and even fires caused by high temperatures, and significantly improving the safety and reliability of the product.

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A three-dimensional schematic diagram of a light-energy hair styling device with temperature protection provided by this utility model;

[0022] Figure 2 A cross-sectional schematic diagram of the photoelectric hair styling device with temperature protection provided by this utility model;

[0023] Figure 3 An exploded view of the light-energy hair styling device with temperature protection provided by this utility model. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments 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 protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 are not intended to 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.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0031] See Figures 1 to 3 The specific embodiment shown in this utility model discloses a light-powered hair styling device with temperature protection, including: a main unit 10, a curling tube 20, a light-emitting tube 30, and a PCBA control board 40. The curling tube 20 is connected to the main unit 10. The light-emitting tube 30 is disposed inside the curling tube 20. The light-emitting tube 30 is connected to the PCBA control board 40 through a conductive wire 50, and a temperature protection device 60 is connected to the middle section of the conductive wire 50. The PCBA control board 40 is also connected to an NTC temperature sensor 70, which extends into the inside of the curling tube 20.

[0032] Specifically, the curling tube 20 is first securely assembled with the main unit 10 using a snap-fit ​​connection or threaded fastening, ensuring that the curling tube 20 will not loosen or shift during hair styling operations. Next, the light-emitting tube 30 (preferably a carbon fiber light-emitting tube, which has high light radiation efficiency and stable heating temperature) is embedded into the pre-reserved mounting groove inside the curling tube 20. A high-temperature resistant insulating pad is attached to the inner wall of the mounting groove to prevent heat loss due to direct contact between the light-emitting tube 30 and the metal inner wall of the curling tube 20, and to prevent the risk of electrical leakage. Then, the PCBA control board 40 is fixed to the circuit board bracket inside the main unit 10, and the positive and negative terminals of the light-emitting tube 30 are connected to the PCBA control board 40 via conductive wires 50. Connect the corresponding power supply interface of board 40. After stripping part of the insulation sheath in the middle of the conductive wire 50, connect the temperature fuse 60 (select a one-time fuse with a rated temperature value that matches the safe temperature threshold of the hair styling device, such as a model with a rated fuse temperature of 180 degrees-260 degrees) in series by crimping or welding to ensure that it can accurately sense the temperature conducted by the curling tube 20. Finally, pass the detection end of the NTC temperature sensor 70 through the connection gap between the main unit 10 and the curling tube 20, extend it into the inside of the curling tube 20 and close to the light tube 30. The wire of the NTC temperature sensor 70 is routed along the inside of the main unit 10 to the signal interface of the PCBA control board 40 to complete the overall assembly.

[0033] When the hair styling device is powered on, the PCBA control board 40 outputs a drive signal to the light tube 30. The light tube 30 immediately releases light energy and radiates heat, which is quickly transferred to the curling tube 20, causing it to heat up. Simultaneously, the NTC temperature sensor 70 collects real-time temperature data of the inside of the curling tube 20, converting the analog temperature signal into an electrical signal and transmitting it to the PCBA control board 40. The PCBA control board 40 analyzes the temperature signal using its built-in chip. If the temperature is lower than the preset styling temperature (e.g., 160-200 degrees Celsius), it maintains or increases the power supply to the light tube 30; if the temperature is higher... When the preset value is reached, the power supply is reduced or the power supply is stopped to achieve dynamic and stable temperature control. When the NTC temperature sensor 70 malfunctions due to wire breakage, component aging, or other reasons, it cannot transmit an accurate temperature signal to the PCBA control board 40, causing the light tube 30 to continue heating and the temperature of the curling tube 20 to exceed the safety threshold. When the temperature of the temperature fuse 60 near the curling tube 20 reaches its rated melting temperature, the internal fuse melts rapidly, cutting off the power supply circuit between the light tube 30 and the PCBA control board 40. The light tube 30 immediately stops working, and the hair stylist enters the shutdown state.

[0034] In other words, on the one hand, the NTC temperature sensor 70 connected to the PCBA control board 40 extends into the inside of the curling tube 20, which can monitor the temperature changes inside the curling tube 20 in real time and transmit the temperature signal to the PCBA control board 40. The PCBA control board 40 then dynamically adjusts the heating state of the light tube 30 according to the preset temperature threshold, achieving precise temperature control under normal operating conditions and avoiding damage to hair quality or safety hazards caused by excessive temperature. On the other hand, a temperature fuse 60 is installed in the middle of the conductive wire 50 connecting the light tube 30 and the PCBA control board 40. This temperature fuse 60 can serve as a backup safety protection unit. If the NTC temperature sensor 70 malfunctions due to aging, poor contact, external interference, or other factors, or if the temperature control logic of the PCBA control board 40 is abnormal, causing the normal temperature to drop, the circuit will be closed. In the event of a control failure, the temperature fuse 60 can directly monitor the actual temperature inside the curling tube 20. Once the temperature exceeds its preset safety threshold, the temperature fuse 60 will immediately and automatically burn out, cutting off the power supply circuit to the light tube 30 and forcing the hair stylist to stop, thus completely blocking the risk of the temperature continuing to rise. Compared to the traditional single temperature control scheme that relies solely on the NTC and circuit board, this scheme forms a dual insurance mechanism of "active monitoring and control + passive emergency cut-off" through the coordinated operation of the NTC temperature sensor 70 and the temperature fuse 60. Even in extreme scenarios where a single protection unit fails, it can still reliably ensure that the hair stylist will not experience temperature runaway, fundamentally reducing the probability of safety accidents such as equipment damage, hair damage, or even fire caused by high temperatures, and significantly improving the safety and reliability of the product.

[0035] In one embodiment, the curling tube 20 is provided with a light-transmitting hole 21, and the light-emitting lamp tube 30 generates heat and emits infrared rays when it works. The heat is transferred to the curling tube 20, and the infrared rays are emitted along the light-transmitting hole 21.

[0036] Specifically, a light-transmitting hole 21 is formed along the length of the wall of the curling tube 20 to ensure that infrared rays can evenly cover the circumferential area of ​​the curling tube 20. At the same time, a layer of high-temperature resistant quartz glass is covered on the outside of the light-transmitting hole 21. The quartz glass is sealed to the wall of the curling tube 20 by a high-temperature resistant silicone sealing ring. The quartz glass has high infrared transmittance and can prevent hair, dust or sweat from entering the interior of the curling tube 20 during the hair styling process, so as to avoid contaminating the light-emitting lamp tube 30 or affecting its heat dissipation.

[0037] In other words, the light tube 30 can not only generate heat, but also emit infrared rays at the same time. The infrared rays can penetrate the hair strands, heat them from the inside, accelerate moisture evaporation, promote the closure of the hair cuticles, reduce heat damage, and protect the hair quality. In addition, the infrared rays can also promote blood circulation, enhance the natural shine and elasticity of the hair strands, and make the curling effect more natural and lasting. Through the light-transmitting holes 21 set along the axial direction of the curling tube 20, the infrared rays can be emitted evenly, ensuring the maximization of the hair styling effect throughout the entire curling process.

[0038] In one embodiment, the curling tube 20 is connected to mica supports 80 at both ends of the light-emitting tube 30, the light-emitting tube 30 passes through the mica supports 80, and a mica plate 90 is connected between the two mica supports 80. The mica plate 90 is used to separate the light-emitting tube 30 and the temperature protection device 60.

[0039] Specifically, the mica support 80 is made of muscovite material with a temperature resistance rating of ≥800 degrees Celsius. This material combines excellent high-temperature resistance and insulation, making it suitable for the high-temperature environment of the light-emitting tube 30 (such as a carbon fiber infrared lamp tube) during operation. The mica support 80 is designed as an "I"-shaped structure, with a circular through hole in the middle matching the outer diameter of the light-emitting tube 30. This ensures the stability of the lamp tube during installation and buffers the slight vibrations during operation. Fixing ears extend from both ends of the support, with mounting holes for connection to the inner wall of the curling tube 20 via screws. In addition, the mica plate 90 is also made of muscovite material. Based on the circumference of the curling tube 20 and the distance between the two mica supports 80, the mica plate 90 is processed into an "arc-shaped strip"—the length is consistent with the distance between the two supports, the width covers the area between the light-emitting tube 30, the temperature fuse 60, and the conductive wire 50, and the thickness is controlled at 1.5-2mm to ensure both heat insulation and structural strength.

[0040] When the light-emitting tube 30 is powered on, the high temperature of approximately 700 degrees Celsius it releases is conducted through the air to the mica plate 90. The mica plate 90, with its low thermal conductivity, prevents heat from being transferred to the temperature-protecting component 60. At the same time, the infrared rays emitted by the light-emitting tube 30 are physically blocked by the mica plate 90, preventing them from directly radiating to the insulation layer of the conductive wire 50, thus avoiding problems such as aging and cracking of the insulation layer due to long-term infrared radiation. In addition, the "support + plate" combination structure formed by the mica bracket 80 and the mica plate 90 can also confine the heat of the light-emitting tube 30 to the styling area of ​​the curling tube 20, reducing heat loss into the main unit 10 and improving energy utilization.

[0041] In other words, the high-efficiency heat insulation of the mica plate 90 isolates the direct high temperature of the light-emitting tube 30 from the temperature fuse 60, allowing the temperature fuse 60 to only sense the actual operating temperature of the curling tube 20 (e.g., 160-200 degrees Celsius). This prevents the fuse from being accidentally triggered by the high temperature of the lamp tube, thus solving the problem of "shutdown during normal operation." Simultaneously, when the NTC temperature sensor 70 malfunctions, causing the curling tube 20 to overheat (e.g., exceeding 220 degrees Celsius), the temperature fuse 60 can accurately detect the overheating signal and melt, ensuring that the safety protection function does not fail and significantly improving the reliability of the dual-safety system. Furthermore, if the infrared radiation from the light-emitting tube 30 directly radiates the conductive wire 50 for a long period, it will accelerate the aging of the insulation layer (e.g., PVC, silicone material) of the conductive wire 50, leading to decreased insulation performance and increased short-circuit risk. The infrared blocking function of the mica plate 90 can block infrared radiation from reaching the conductive wire 50, slowing down the aging of the insulation layer, extending the service life of the conductive wire 50, and reducing equipment malfunctions such as short circuits and leakage caused by the aging of the conductive wire 50.

[0042] In one embodiment, the temperature fuse 60 and the light-emitting tube 30 are arranged in parallel, and the horizontal distance between the ends of the temperature fuse 60 and the light-emitting tube 30 is 20mm-30mm.

[0043] Specifically, when the light-emitting tube 30 is working, the heat is concentrated in the middle area, where the central temperature can reach about 700 degrees Celsius, while the end, being closer to the mica support 80 and the heat dissipation structure, has a relatively lower temperature (about 300-350 degrees Celsius). Maintaining a 20mm-30mm gap between the temperature fuse 60 and the end of the tube completely avoids the high-temperature zone in the middle of the tube, preventing the fuse from being exposed to high temperatures for extended periods, thus accelerating the aging of the internal fuse wire, significantly extending its service life, and reducing equipment failures caused by premature fuse aging. In addition, the 20mm-30mm gap design prevents the temperature fuse 60 from accidentally blowing due to its proximity to the high-temperature zone in the middle of the tube (such as accidental triggering due to high temperature during normal operation), while also ensuring that the temperature fuse 60 can promptly detect temperature changes and blow when the entire curling tube 20 overheats (such as when the NTC malfunctions and the temperature is conducted to the tube wall). Meanwhile, the temperature fuse 60 is positioned parallel to the lamp tube, allowing it to receive heat more evenly from the curling tube 20. This avoids delayed temperature sensing due to angular deviations, ensuring rapid circuit cutoff in case of temperature runaway and completely preventing danger, further enhancing the reliability of the double safety measure. Furthermore, the temperature fuse 60 can be positioned at either the front or rear of the lamp tube 30, providing flexibility in the internal structure layout of the hair styling device. This flexible placement allows the temperature fuse solution to adapt to different sizes and shapes of curling tubes 20 without requiring adjustments to the overall structure due to fuse placement limitations, thus improving the compatibility and practicality of the technical solution.

[0044] In one embodiment, the conductive wire 50 is further sleeved with a fiberglass tube 100 on the outside of the temperature protection element 60.

[0045] Specifically, based on the outer diameter of the conductive wire 50 and the length of the temperature protection component 60, an alkali-free fiberglass tube 100 with a temperature resistance rating of ≥300 degrees and an inner diameter 0.5mm-1mm larger than the outer diameter of the conductive wire 50 is selected (alkali-free fiberglass tubes have excellent insulation performance and strong aging resistance).

[0046] In other words, the fiberglass tube 100, fitted around the outside of the temperature fuse 60, effectively isolates it from external physical impacts (such as minor collisions during hair styling assembly or friction between internal components of the curling tube 20 during use), preventing damage to the outer shell or detachment of the pins from external pressure or scratches. Simultaneously, the fiberglass tube 100 prevents dust and moisture from entering the temperature fuse 60, preventing poor contact or performance failure due to moisture or dust accumulation. Furthermore, if the infrared radiation emitted by the light-emitting tube 30 directly irradiates the fiberglass tube 100, it will accelerate the aging process, leading to decreased strength, deterioration of insulation performance, and shortened service life. The mica plate 90 blocks infrared radiation, placing the fiberglass tube 100 in a low-radiation environment. Combined with the high-temperature resistance of the fiberglass tube 100 itself, this slows down the aging process, reducing maintenance costs associated with replacing the conductive wire 50 and the temperature fuse 60 due to aging of the fiberglass tube 100.

[0047] In one embodiment, the conductive wire 50 is fixed to the mica plate 90 by a wire clamp.

[0048] Specifically, a high-temperature resistant mica material rivet clamp is selected that matches the thickness of the mica plate 90. The clamp body has a U-shaped structure, with an arc-shaped groove on the inside that matches the outer diameter of the conductive wire 50. A 0.2mm thick high-temperature resistant silicone pad (temperature resistance ≥300 degrees Celsius) is pasted on the inner wall of the groove. This not only prevents damage to the insulation layer of the conductive wire 50 when the clamp is tightened, but also enhances the fixing friction. The rivets are mica rivets of the same material, and their length matches the thickness of the mica plate 90 (ensuring that there is no excess protrusion after penetrating the mica plate 90).

[0049] In other words, by fixing the conductive wire 50 to the mica plate 90 with rivet clamps, the swing amplitude of the conductive wire 50 can be completely limited, ensuring that the temperature protection component 60 is always in the preset temperature sensing position, so that it can accurately capture the actual temperature change of the curling tube 20, which not only avoids accidental melting during normal operation, but also ensures a rapid response in case of loss of control, thus improving the reliability of safety protection.

[0050] In one embodiment, the hair curling tube 20 is further provided with a light-transmitting sealing element 110 corresponding to the position of the light-transmitting hole 21.

[0051] Specifically, to ensure that the light-transmitting hole 21 can effectively transmit infrared rays while preventing heat leakage and external impurities from entering the curling tube body 20, a light-transmitting seal 110 is provided on the curling tube body 20 at the position corresponding to the light-transmitting hole 21. In specific implementation, the light-transmitting seal 110 is designed as a ring-shaped or sheet-like structure that fits tightly against the inner wall of the curling tube body 20. Its material is selected to have high thermal stability, good light transmittance, and a certain degree of elasticity, such as transparent silicone, polyimide film, or special optical glass. These materials can maintain stable light transmittance under high-temperature environments while also providing a certain sealing effect.

[0052] In other words, the design of the light-transmitting seal 110 ensures that infrared rays can pass smoothly through the light-transmitting hole 21 without being obstructed by the material or structure of the seal. This design guarantees the effective utilization of infrared rays during the heating and styling process, improving the styling effect. Furthermore, the light-transmitting seal 110 not only transmits light but also has a certain degree of heat insulation. It effectively prevents heat inside the curling tube 20 from leaking into the external environment through the light-transmitting hole 21, thereby improving the thermal efficiency and safety of the hair styling device. In addition, the sealing performance of the light-transmitting seal 110 also prevents external impurities such as dust and moisture from entering the curling tube 20 through the light-transmitting hole 21, thus protecting the light-emitting lamp tube 30 and the electronic components inside the curling tube 20 from damage and extending the service life of the hair styling device.

[0053] In one embodiment, the host 10 is further provided with an elastic clip assembly 120 on the outside of the curling tube body 20. The elastic clip assembly 120 includes a compression spring and a clamping member. The compression spring is connected to the host 10, and the clamping member is hinged to the host 10 and abuts against the compression spring.

[0054] Specifically, when the clamping member is pressed, the spring member is compressed under the pressure. At this time, the hair can be wrapped around the curling tube 20. Then, the clamping member is released, and the spring member quickly returns to its original position using its elasticity, so that the clamping member and the curling tube 20 cooperate to clamp the hair.

[0055] In other words, the design of the elastic clip assembly 120 allows users to quickly clamp and release hair. By simply pressing and releasing the clips, hair can be secured and released, greatly improving the convenience and efficiency of hair styling operations. Furthermore, the elasticity of the spring and the structural design of the clips ensure that the hair is firmly clamped onto the curling tube 20. Even if the hair is subjected to a certain amount of tension or external force during the hair styling process, the clips and springs work together to maintain a stable clamped state. In addition, through this stable clamping effect, the elastic clip assembly 120 ensures even heating and styling of the hair during the curling process, which helps improve the hair styling results while reducing safety hazards caused by loose or falling hair.

[0056] In one embodiment, a sealing head 130 is also connected to the end of the curling tube 20 away from the main unit 10.

[0057] Specifically, the sealing head 130 effectively prevents heat leakage from the inside of the curling tube 20. During the curling process, excessive heat leakage not only reduces the curling effect but may also pose safety hazards such as burns to the user. The sealing head 130 reduces heat leakage, allowing the heat inside the curling tube 20 to concentrate more effectively, thus improving the curling effect. Furthermore, the sealing head 130 prevents external impurities (such as dust and moisture) from entering the curling tube 20. These impurities could damage the internal structure of the curling tube 20, affecting its lifespan and performance. The sealing effect of the sealing head 130 effectively blocks the entry of these impurities, thereby protecting the internal structure of the curling tube 20 from damage.

[0058] In one embodiment, the end of the sealing head 130 away from the curling tube body 20 is also connected to a handheld component 140.

[0059] Specifically, the handheld component 140 allows users to more easily rotate and operate the curling tube 20, making it easier to style and set the hair, and preventing burns. Furthermore, the handheld component 140 allows users to more easily adjust the angle and direction of the curling tube 20, enabling more diverse hairstyle designs and enhancing operational flexibility and precision.

[0060] In one embodiment, the host 10 is provided with a control switch, which is electrically connected to the PCBA control board 40.

[0061] Specifically, the operating power of the light-emitting tube 30 can be adjusted by controlling the switch. The operating power of the light-emitting tube 30 can be set to 30-60W. When the operating temperature is set to 60 degrees Celsius, it is ensured that the light-emitting tube 30 can work and generate infrared light to meet the needs of use in a low-power state.

[0062] In other words, for the 30-60W operating power range of the light tube 30, three power parameters can be set: low 30W, medium 45W, and high 60W, ensuring stable power at each level without significant fluctuations. Through the three-level control switch, users can freely adjust the power according to hair type (e.g., 30W for fine hair, 60W for coarse hair) and styling needs (e.g., 30W for low-temperature care, 60W for quick curls), adapting to different usage scenarios. In particular, the combination of low 30W and low 60°C meets users' needs for "low-temperature styling and reduced hair damage" (e.g., hair care after dyeing and perming), solving the problem of traditional hair styling tools having fixed power and being unable to adapt to various hair types, thus expanding the product's applicability.

[0063] Specifically, the other structures of the host 10 adopt existing publicly available technologies, which will not be elaborated on here.

[0064] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A light energy hair appliance having a temperature fuse, characterized in that, include: The device includes a main unit, a curling tube, a light-emitting tube, and a PCBA control board. The curling tube is connected to the main unit. The light-emitting tube is located inside the curling tube and is connected to the PCBA control board via a conductive wire. A temperature fuse is connected to the middle section of the conductive wire. The PCBA control board is also connected to an NTC temperature sensor, which extends into the inside of the curling tube.

2. The light energy hair appliance with temperature fuse of claim 1, wherein, The curling tube is provided with a light-transmitting hole. The light-emitting tube generates heat and emits infrared rays when it works. The heat is transferred to the curling tube, and the infrared rays are emitted along the light-transmitting hole.

3. The light energy hair appliance with temperature fuse of claim 1, wherein, Inside the curling tube, mica supports are connected to both ends of the light-emitting tube. The light-emitting tube passes through the mica supports, and a mica plate is connected between the two mica supports. The mica plate is used to separate the light-emitting tube and the temperature protection device.

4. The light energy hair appliance with temperature fuse of claim 3, wherein, The temperature fuse and the light-emitting tube are arranged in parallel, and the horizontal distance between the end of the temperature fuse and the end of the light-emitting tube is 20mm-30mm.

5. The light energy hair appliance with temperature fuse of claim 4, wherein, The conductive wire is located outside the temperature protection element and is also covered with a fiberglass tube.

6. The light energy hair appliance with temperature fuse of claim 4, wherein, The conductive wire is fixed to the mica plate by a wire clamp.

7. The light energy hair appliance with temperature fuse of claim 2, wherein, The curling tube is also provided with a light-transmitting sealing element at the position corresponding to the light-transmitting hole.

8. The light energy hair appliance with temperature fuse of claim 1, wherein, The main unit is located on the outside of the curling tube and is also provided with an elastic clip assembly. The elastic clip assembly includes a compression spring and a clamping member. The compression spring is connected to the main unit, and the clamping member is hinged to the main unit and abuts against the compression spring.

9. The light energy hair appliance with temperature fuse of claim 1, wherein, A sealing head is also connected to the end of the curling tube that is away from the main unit.

10. The light energy hair appliance with temperature fuse of claim 9, wherein, The sealing head is also connected to a handheld device at the end away from the curling tube.

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