50 patents in this list

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Automatic hair curling devices face significant engineering challenges in managing heat distribution, mechanical movement, and hair protection simultaneously. Current devices operate at temperatures between 160-230°C while executing precise rotational movements, yet must prevent thermal damage, tangling, and mechanical stress to hair strands that vary in thickness from 50 to 120 micrometers.

The core engineering challenge lies in coordinating automated mechanical movement with controlled heat application while maintaining safety and preventing hair entanglement.

This page brings together solutions from recent research—including rotating heating elements with integrated PTC-NTC controls, fork-shaped guidance systems with root limit sensors, and gear-driven mechanisms with tangle-reducing clip designs. These and other approaches focus on creating reliable, user-friendly devices that deliver consistent curling results while protecting both the user and their hair.

1. Hair Curling Device with Insulated Fork-Shaped Headpiece and Integrated Hair Puller Mechanism

SHANGHAI LEIWA ELECTRIC APPLIANCE CO LTD, Shanghai Rewa Electric Appliance Co., Ltd., 2023

A hair curling device with a unique, ergonomic design that eliminates the need for directional control. The device features an insulated fork-shaped headpiece that advances hair from the top to the bottom, eliminating the need for direction-specific controls. The fork-shaped headpiece is positioned at one end of the aluminum tube, while the heating assembly and driving mechanism are positioned at the other end. The hair puller is integrated into the tube's inner structure, and the control panel is positioned within the housing. This design provides a more intuitive and efficient curling experience compared to traditional unidirectional curling irons.

2. Automatic Hair Curler with Rotating Mechanism and Root Limit Sensor

MEIPING ELECTRICAL APPLIANCE PRODUCTS CO LTD, 美平电器制品有限公司, 2023

An automatic hair curler that enables effortless curling without hair tangles. The curler features a unique rotating mechanism with multiple curling levers arranged around the heating channel, allowing for precise control over curl direction. The device incorporates a hair nozzle with a built-in root limit sensor, ensuring optimal curling performance while preventing excessive tangles. The rotating mechanism is driven by a compact and reliable motor system, eliminating the traditional curler tangle issue.

CN218515319U-patent-drawing

3. Curling Iron with Integrated Rotating Heating Element in Barrel

FANG LI-HAO, Fang Lihao, 2022

An automatic curling iron that eliminates the need for a separate heating rod by integrating it into the curling barrel. The curling iron features a rotating heating element that is permanently connected to the barrel, eliminating the need for separate rod rotation. This design enables the curling iron to achieve precise temperature control and uniform curling without the complexity of separate heating elements.

4. Automatic Curling Iron with Rotatable Heating Rod and Magnetic Suction Positioning System

Zhejiang University of Technology Zhijiang College, NINGBO DINGGAO ELECTRIC APPLIANCE TECHNOLOGY CO LTD, ZHIJIANG COLLEGE OF ZHEJIANG UNIVERSITY OF TECHNOLOGY, 2022

An automatic curling iron with automatic rotation that enables precise control over the curling motion. The curling iron features a lower rod body with a control assembly, a heating rod that rotates relative to the rod body, and a steering seat that connects to the heating rod. The heating rod has a splint with a magnetic suction system that allows precise positioning of the heating element. The curling iron's design enables adjustable curling direction through the steering seat's arc-shaped configuration, allowing for customized curl patterns.

CN218008569U-patent-drawing

5. Automatic Hair Curler with Dual-Handle Chamber and Sleeve Configuration for Precise Curling Control

DONGGUAN XINEN BEISI HARDWARE TECHNOLOGY CO LTD, Dongguan Xin Enbeisi Hardware Technology Co., Ltd., 2022

An automatic hair curler that enables precise control over curling time and shape through a novel chamber arrangement. The curler comprises two handles connected by a chamber system that houses a sleeve connected to each handle. The chamber extends from the handle's opening to the middle and from the middle to the handle's end. A power line connects the chamber's power source to a control board. This chamber design enables precise positioning of the curling chamber within the handles, allowing for optimal control over curling time and shape.

6. Automatic Hair Curler with Elastic-Linked Adjustable Curling Mechanism and Heat-Insulating Cylinder

GUANGDONG LUOMAN INTELLIGENT TECHNOLOGY CO LTD, Guangdong Roman Intelligent Technology Co., Ltd., 2022

Automatic hair curler with adjustable curling mechanism that prevents hair tangles and jams. The curler features a connected hand-held part and a heating body covered by a heat-insulating cylinder. A spring is integrated into the hair extension, which is connected to the heating body through an elastic member. This design provides a secure and controlled curling mechanism that prevents hair breakage and tangles during use.

7. Automatic Hair Curler with Rotatable Clips and Integrated PTC-NTC Heated Curling Rod

DONGGUAN HUALIN ELECTRIC APPLIANCE TECHNOLOGY CO LTD, Dongguan Hualin Electrical Technology Co., Ltd., 2022

Automatic hair curler with rotatable clips that eliminates the need for a high-power motor and reduces the overall weight and size of the curling iron. The curling iron features a heating element integrated into the curling rod, which is powered by a PTC heater and an NTC thermistor. The curling rod is connected to a rotatable clip that can be positioned on either side of the curling rod. The curling rod is heated by the integrated heater, allowing for precise temperature control. The curling iron's design eliminates the need for a separate heating element and motor, making it more compact and energy-efficient.

CN217218384U-patent-drawing

8. Automatic Hair Curler with Rotating Heating Reel and Tangle-Reducing Clip Design

Xinlianli Technology Co., Ltd., XINLIANLI TECHNOLOGY CO LTD, 2022

Automatic hair curler with improved curl formation and reduced hair tangles. The device features a rotating heating reel with a specially designed clip that accommodates hair bundles between the reel and the heating element. The clip's design allows hair to pass through while maintaining a gap between the reel and the hair, preventing tangles and ensuring smooth curl formation. The curler also features a protective shell that covers the heating element and clip, providing additional protection against damage during use.

CN217185123U-patent-drawing

9. Hair Curler with Integrated Self-Rotating Heating Element and Gear-Driven Mechanism

XINLIANLI TECHNOLOGY CO LTD, New Union Power Technology Co., Ltd., 2022

Hair curler with self-rotating structure that eliminates hair entanglement and device malfunction. The device features a rotating heating element with a shaft mounting hole, comprising a heating body with upper and lower heating elements separated by a clamping gap. The heating element is connected to a rotating lever assembly comprising four gears that drive the heating element. The device's rotating mechanism is integrated into a single housing, eliminating the need for separate heating elements and levers. This design provides a self-contained, compact curling system with reduced maintenance and potential for hair entanglement.

CN216875352U-patent-drawing

10. Wireless Hair Curling Iron with Rotating Hair Guide and Dual-Sided Heating Coil

SHANGHAI JUNZHI ELECTRICAL APPLIANCE MANUFACTURING CO LTD, Shanghai Junzhi Electric Appliance Manufacturing Co., Ltd., 2022

A wireless intelligent hair curling iron that eliminates hair tangles and prevents burns by automatically guiding hair into the curling mechanism. The device features a compact, ergonomic design with a rotating hair guide that positions hair in the curling chamber, while a heated coil and motor work together to achieve the curling effect. The guide is positioned on both sides of the heating coil, with a hair clip attachment that holds hair in place. The device also features a charging base with a built-in battery and charging circuit board, allowing users to charge the device wirelessly.

CN216875353U-patent-drawing

11. Rotating Cylinder Hair Curling Mechanism with Integrated Dual Heating Plates and Precision Guiding Grooves

SHENZHEN ZISHA SCIENCE AND TECH CO LTD, 2022

Hair curling mechanism for achieving efficient and precise curling through a compact, ergonomic design. The mechanism comprises a rotating cylinder with integrated heating elements, specifically two opposing heating plates that maintain a precise gap between them. The plates are positioned within a hair-cut groove and a starting groove, respectively, to guide hair strands into the curling action. The rotating cylinder is connected to a driving mechanism that enables precise control over the curling process. This innovative design enables rapid and uniform curling while maintaining hair quality, making it ideal for both professional and home use.

CN114468509A-patent-drawing

12. Automatic Hair Curler with Dual-Control Rotating Mechanism and Oppositely Arranged Heating Plates

Guangdong Hongyuan Electric Technology Co., Ltd., 2022

Automatic hair curler with a unique rotating mechanism that enables simultaneous control of both ends of the hair bundle during curling. The curler features a rotating sleeve with two oppositely arranged heating plates that can be positioned together to create a perm working surface. A drive motor powers the sleeve or heating plates to rotate the curler, allowing both ends of the hair to be heated simultaneously while the curler maintains a consistent shape. This design eliminates the need for manual clamping and allows for faster, more efficient curling while maintaining the desired curl pattern.

CN216316147U-patent-drawing

13. Hair Curling Device with Integrated Motor, Heating Element, and Winding Mechanism in Rigid Casing

ZHUHAI THUMBS UP INNOVATION TECHNOLOGY CO LTD, Zhuhai Thumbs Up Innovation Technology Co., Ltd., 2022

A hair curling device that eliminates the common issues of motor, heating assembly, and winding mechanism problems in existing automatic curlers. The device features a unique assembly design where the motor, heating element, and winding mechanism are integrated into a single, rigid casing that connects to the handle assembly. The casing has a specially designed diaphragm plate that houses the motor components and heat generation, with a strategically positioned through hole allowing the rotating shaft to pass through. This integrated design eliminates the potential for offset, tilt, or eccentric movement of the motor, heating element, and winding mechanism, ensuring precise gear meshing and reliable operation.

CN216059521U-patent-drawing

14. Automatic Hair Curler with Dual Heating Elements and Rotational Mechanism

Shanghai Rewa Electric Appliance Co., Ltd., SHANGHAI LEIWA ELECTRIC APPLIANCE CO LTD, 2022

Automatic hair curler that eliminates the need for hair fixation and provides enhanced curling performance through a unique rotational mechanism. The curler features two heating elements with a gap between them, allowing hair to naturally wrap around the outer circumference of the heating elements during rotation. The design incorporates negative ion emission and infrared radiation protection to minimize hair damage while curling. The curler's rotational motion is controlled by a power assembly, enabling precise curling without the need for manual hooking.

15. Hair Curler with Self-Rotating Heating Element and Lever-Driven Mechanism

XINLIANLI TECHNOLOGY CO LTD, 2021

Hair curler with a self-rotating structure that enables automatic curling without hair entanglement. The curler features a rotating heating element that is driven by a lever mechanism, allowing the user to control the curling process while the hair is in motion. The rotating heating element is protected by a casing to prevent heat transfer to the user's hands or other parts. The lever mechanism provides assistance during curling, enabling the hair to be smoothly rolled into the curling tube. The rotating heating element and lever mechanism work together to achieve automatic curling without hair entanglement, making the curler more convenient and efficient for users.

CN113812741A-patent-drawing

16. Hair Curling Device with Integrated Airflow System and Handle-Embedded Air Intake and Exhaust Components

Dreame Technology Co., Ltd., DREAME TECHNOLOGY CO LTD, 2021

Automatic hair curling device that enables efficient and convenient hair styling through a novel airflow-based system. The device incorporates an integrated airflow system that utilizes the driving member to generate external airflow, which is then directed through the hair curling mechanism. This airflow enables precise control over curl formation and distribution, eliminating the need for manual adjustments. The device's design integrates the air intake and exhaust components into the handle assembly, providing a streamlined and ergonomic user experience.

17. Automatic Hair Curling Device with Integrated Rotating Mechanism and Motor-Driven Transmission System

WANG BOPING, Wang Boping, 2021

A new automatic hair curling device that eliminates the need for manual manipulation during styling. The device features a hollow cylindrical shell housing containing a rotating curling mechanism, a heating component, and a control system. The heating component is mounted on the shell and connected to the control system, while the control system is integrated with the mechanism. The device includes a motor-driven transmission system that connects the heating component to the mechanism, enabling continuous curling without manual intervention. The motor and transmission are electrically connected to the control system, which regulates the curling process. This innovative design eliminates the need for manual curling, reduces styling time, and provides consistent results.

18. Automatic Hair Curler with Precision Temperature Control and Ergonomic Design

Shenzhen Hengmei Innovation Technology Co., Ltd., SHENZHEN HMCX TECHNOLOGY CO LTD, 2021

An automatic hair curler that provides enhanced curling performance through advanced temperature control and ergonomic design. The curler features a heated tourmaline ceramic drum that distributes heat evenly across the hair shaft, while a precision temperature control system ensures optimal curl formation. The ergonomic handle provides comfortable grip and control, while the automatic curling mechanism eliminates the need for manual manipulation. The design incorporates features such as automatic curl detection and adjustment, automatic heat distribution, and a built-in protective coating to prevent damage.

CN213962184U-patent-drawing

19. Automatic Hair Curler with Multi-Blade Air Guide System and Integrated Venturi Effect Channels

ZOU JIANHAN, 2021

Automatic hair curler with improved airflow management through a novel wind guide system. The curler features a winding part with multiple air guide blades, each containing an air channel that connects to a separate air outlet. The air outlets are positioned along the outer surface of the winding part, with a secondary air channel connecting to the outer wall. This configuration enables the creation of a Venturi effect, generating a high-speed airflow that rotates the hair as it passes through the winding part. The system's unique design ensures stable airflow distribution and optimal curl formation.

20. Automatic Hair Curler with Integrated Heating Drum and Electronic Curling Adjustment Mechanism

Ningbo Yansen Electronic Technology Co., Ltd., NINGBO YANSEN ELECTRONIC TECHNOLOGY CO LTD, 2021

An automatic hair curler that eliminates the manual winding and perming steps typically associated with traditional curling irons. The device features a unique heating drum with a specially designed heating element that distributes heat evenly throughout the curling process. The heating element is integrated into the drum's design, eliminating the need for separate heating elements or manual winding. The curling mechanism is controlled by a built-in electronic panel that automatically adjusts curling parameters based on the user's desired level of curl. The device's ergonomic design features a comfortable grip and adjustable temperature control, making it accessible to users of all hair types and curling levels.

21. Automatic Curler with Rotating Column and Hooking Mechanism for Stereoscopic S-Shaped Curling

22. Automatic Hair Curler with Integrated Heating Element and Rotating Toggle Mechanism Featuring Adjustable Guide Plates

23. Automatic Curling Iron with Rotating Mechanism and Dual Insulation Housing

24. Hair Curling Device with Integrated Airflow System and Drive-Controlled Curling Mechanism

25. Hair Curler with USB Charging and Tourmaline Ceramic Heating Roller

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