Curling iron achieving rotational electrical contact based on probe

Abstract

A curling iron (100) achieving rotational electrical contact based on a probe. The curling iron (100) comprises a handle (10) extending in an axial direction (F1) and a hair curling assembly (20) rotatable relative to the handle (10). The curling iron (100) further comprises: a drive board (30); a motor assembly (40) fixed within the handle (10) and connected to the drive board (30); a probe assembly (50) having an end fixed to the handle (10) and another end extending in the axial direction (F1); and an electrical contact assembly (60) having an end fixed to the hair curling assembly (20) and connected to an output shaft of the motor assembly (40) and another end abutting against the other end of the probe assembly (50) in the axial direction (F1). The output shaft of the motor assembly (40) outputs torque to the electrical contact assembly (60), so as to drive the electrical contact assembly (60) to rotate relative to the probe assembly (50), thereby driving the hair curling assembly (20) fixed to the electrical contact assembly (60) to rotate relative to the handle (10) fixed to the probe assembly (50). The invention achieves electrical contact between the probe assembly (50) and the electrical contact assembly (60) in the axial direction (F1).

Description

A hair curler based on a probe to achieve rotating electrical contact Technical Field

[0001] The present invention relates to the technical field of hair curlers, and in particular to a hair curler that realizes rotating electrical contact based on a probe. Background Art

[0002] Household appliances used for curling or straightening hair are called curling irons, curling wands, or hair straighteners. A curling iron is a handheld electronic product used to curl hair. Its main components are a handle and a drum assembly. The handle and drum assembly rotate relative to each other during operation and need to maintain electrical connection at all times to drive the drum assembly to heat up. Currently, the handle and drum assembly on the market are electrically connected via electrical contacts. The contact area is large, resulting in high friction. In addition, the curling iron is subject to radial forces during operation. Over time, this can lead to poor electrical contact between the relatively rotating handle and drum assembly, affecting the product's service life. Therefore, it is necessary to provide a curling iron with a longer service life and a more stable electrical connection. Summary of the Invention

[0003] The object of the present invention is to provide a hair curler with a longer service life and a more stable electrical connection.

[0004] According to one aspect of the present invention, there is provided a hair curler for achieving rotary electrical contact based on a probe, comprising a handle extending in an axial direction and a hair curling assembly that rotates relative to the handle, the hair curler further comprising:

[0005] Driver board,

[0006] The motor assembly is fixed in the handle and connected to the drive plate;

[0007] A probe assembly, one end of which is fixed to the handle and the other end of which extends axially;

[0008] an electric contact assembly, one end of which is fixed to the curling assembly and connected to the output shaft of the motor assembly, and the other end of which is axially abutted against the other end of the probe assembly;

[0009] The output shaft of the motor assembly outputs torque to the electric contact assembly to drive the electric contact assembly to rotate relative to the probe assembly, thereby driving the curling assembly fixed to the electric contact assembly to rotate relative to the handle fixed to the probe assembly.

[0010] More preferably, the probe assembly comprises:

[0011] A probe seat, fixed to the handle;

[0012] The probe is arranged in the probe seat and extends in the axial direction to abut against the electric contact component in the axial direction to achieve electrical connection.

[0013] More preferably, the electric contact assembly includes:

[0014] an electric contact seat, fixed to the hair curling assembly;

[0015] The electric contact piece is arranged in the electric contact seat, extends radially, and contacts the probe in the axial direction.

[0016] More preferably, the probe comprises:

[0017] A probe base is fixed to the probe base and extends in the axial direction, one end of the probe base is connected to the driving plate, and the other end extends in the opposite direction of the axial direction to form an accommodating cavity;

[0018] a spring, disposed in the accommodating cavity;

[0019] An electrical contact is provided at one end of the probe base and connected to the spring; wherein,

[0020] The electric contact abuts against the electric contact piece along the axial direction under the elastic force of the spring.

[0021] More preferably, the electrical contact seat comprises:

[0022] A seat body, a side of which is away from the handle and is fixed to the hair curling assembly;

[0023] A guide plate is formed on a side of the base body close to the handle. When viewed axially, the output shaft of the motor assembly passes through the middle of the base body. The guide plate is a plurality of concentric rings arranged around the middle.

[0024] The electric contact groove is formed between two adjacent concentric rings. The electric contact piece is spread out in the electric contact groove. The electric contact abuts against the electric contact piece arranged in the electric contact groove.

[0025] More preferably, the number of the probes is multiple groups, the number of the electric contact slots and the electric contact pieces corresponds to the number of the probe groups, and each group of probes includes at least two probes that are centrally symmetrically distributed with the middle of the base as the center;

[0026] When the handle rotates relative to the hair curling assembly, the probe rotates in the probe groove along the constraint track of the guide plate and abuts against the electric contact piece to maintain electrical contact.

[0027] Better yet,

[0028] The side of the electric contact sheet close to the handle is unfolded into an electric contact surface and abuts against the probe head. The side of the electric contact sheet away from the handle is extended axially to form an electric connection plate. The curling assembly is electrically connected to the electric connection plate.

[0029] More preferably, the hair curler further comprises:

[0030] a first coupling, one end of which is connected to the probe base and the other end of which is connected to the motor assembly;

[0031] a second coupling, one end of which is connected to the electric contact seat and the other end of which is connected to the curling assembly;

[0032] A bearing is provided at one end of the second coupling close to the handle and is connected to the output shaft of the motor assembly.

[0033] Better yet,

[0034] When viewed along the axial direction, the probes of the same group form a central support with the middle of the base as the center, and two adjacent groups of probes are staggered to form a phase difference of 90°.

[0035] More preferably, when viewed along the axial direction, a through hole for the power supply contact to pass through is formed on the probe seat, and the through hole passes through the probe seat along the axial direction;

[0036] When viewed in the radial direction, the portion of the electrical contact that contacts the electrical contact piece in the axial direction is arc-shaped.

[0037] The present invention has the following beneficial effects:

[0038] A probe assembly is provided, one end of which is fixed to the motor assembly and the other end of which extends axially, and an electric contact assembly, one end of which is fixed to the curling assembly and connected to the output shaft of the motor assembly, and the other end of which abuts the other end of the probe assembly in the axial direction. Axial electrical contact is achieved between the probe assembly and the electric contact assembly. The output shaft of the motor assembly outputs torque to the electric contact assembly, driving the electric contact assembly to rotate relative to the probe assembly, thereby driving the curling assembly, which is fixed to the electric contact assembly, to rotate relative to the handle fixed to the probe assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0040] FIG1 is a schematic diagram of the three-dimensional structure of a hair curler according to an embodiment of the present invention;

[0041] FIG2 is a schematic diagram of an exploded view of a hair curler according to an embodiment of the present invention;

[0042] FIG3 is a side view of a hair curler according to an embodiment of the present invention;

[0043] FIG4 is a schematic cross-sectional view at AA in FIG3 ;

[0044] FIG5 is a schematic cross-sectional view at point BB in FIG3 ;

[0045] FIG6 is a perspective structural diagram of a probe assembly and an electric contact assembly according to an embodiment of the present invention;

[0046] FIG7 is a schematic diagram of the three-dimensional structure of the probe assembly and the electric contact assembly according to one embodiment of the present invention from another angle;

[0047] FIG8 is a schematic diagram of the combined structure of the probe assembly and the electric contact assembly according to one embodiment of the present invention;

[0048] FIG9 is a schematic diagram of an exploded structure of a probe assembly and an electric contact assembly according to an embodiment of the present invention;

[0049] FIG10 is a schematic diagram of the three-dimensional structure of a probe according to one embodiment of the present invention;

[0050] FIG11 is a schematic diagram of the cross-sectional structure of a probe according to one embodiment of the present invention;

[0051] FIG12 is a schematic diagram of the three-dimensional structure of an electric contact sheet according to one embodiment of the present invention;

[0052] Description of Figure Numbers:

[0053] 100. Curling iron; 10. Handle; 20. Curling assembly; 30. Drive plate; 40. Motor assembly; 50. Probe assembly; 60. Electric contact assembly; 51. Probe seat; 52. Probe; 61. Electric contact seat; 62. Electric contact piece; 521. Probe seat; 522. Spring; 523. Electric contact; 611. Seat body; 612. Guide plate; 613. Electric contact slot; 70. First coupling; 80. Second coupling; 90. Bearing; F1, axial; F2, radial; 41. Output shaft; 621, electrical connection plate. DETAILED DESCRIPTION

[0054] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0055] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0057] 1-12 , an embodiment of the present invention provides a hair curler 100 that utilizes a probe 52 to achieve rotational electrical contact. The hair curler 100 includes a handle 10 extending along an axial direction F1 and a hair curling assembly 20 that rotates relative to the handle 10 . The hair curler 100 also includes a drive plate 30 , a motor assembly 40 , a probe assembly 50 , and an electrical contact assembly 60 .

[0058] The motor assembly 40 is fixed within the handle 10 and connected to the drive board 30. The drive board 30 is a circuit board for connecting to electrical components. One end of the probe assembly 50 is fixed to the handle 10, and the other end extends along the axial direction F1. One end of the electric contact assembly 60 is fixed to the curling assembly 20 and connected to the output shaft 41 of the motor assembly 40, and the other end abuts the other end of the probe assembly 50 along the axial direction F1. The output shaft 41 of the motor assembly 40 outputs torque to the electric contact assembly 60, driving the electric contact assembly 60 to rotate relative to the probe assembly 50, thereby driving the curling assembly 20, which is fixed to the electric contact assembly 60, to rotate relative to the handle 10, which is fixed to the probe assembly 50.

[0059] The motor assembly 40 is secured within the handle 10 and connected to the drive board 30, contributing to the compact and integrated structure of the curling iron 100. The drive board 30 (circuit board) is connected to the motor assembly 40 to control the motor's operation. The circuit board includes control logic, power management, and possible sensors to ensure safe and efficient operation of the curling iron 100. The probe assembly 50 is secured at one end to the handle 10, ensuring that the probe 52 remains in a relatively stable position during use. This is crucial for the controllability and user experience of the curling iron 100. The electric contact assembly 60 is secured to the curling assembly 20 to ensure relative movement between them. This allows movement of the electric contact assembly 60 to be transmitted to the curling assembly 20, achieving the curling function. The output shaft 41 of the motor assembly 40 generates torque, which is transmitted to the electric contact assembly 60 through its connection to the electric contact assembly 60. The torque generated by the motor drives the electric contact assembly 60 to rotate relative to the probe assembly 50, which is secured to the handle 10. This relative movement is essential for the proper operation of the curling iron 100. Since the electric contact assembly 60 is fixed to the hair curling assembly 20 , the rotation of the electric contact assembly 60 drives the hair curling assembly 20 to rotate relative to the probe assembly 50 and the handle 10 , thereby realizing the hair curling function of the hair curler 100 .

[0060] More preferably, the probe assembly 50 includes a probe base 51 and a probe 52 .

[0061] The probe seat 51 is fixed to the handle 10. The probe 52 is disposed in the probe seat 51 and extends along the axial direction F1 to abut against the electric contact assembly 60 in the axial direction F1 to achieve electrical connection.

[0062] Securing the probe base 51 to the handle 10 helps ensure the stability of the probe assembly 50 during use. The handle 10 is the part of the curling iron 100 that the user grips, so stability is crucial to the user experience. The probe 52 extends along the axial direction F1 and abuts the electrical contact assembly 60, ensuring a stable electrical connection along the axial direction F1. This connection helps maintain the consistency of the electrical contacts and improves the reliability of the electrical contact. By establishing an electrical connection along the axial direction F1, electrical contact is achieved between the electrical contact assembly 60 and the probe assembly 50. This electrical connection is intended to transmit electrical energy or signals during operation of the curling iron 100, for example, to drive the movement of the electrical contact assembly 60. The axial extension of the probe 52 along the axial direction F1 ensures that it effectively contacts the electrical contact assembly 60, allowing current or signals to flow smoothly between the two. By extending the probe 52 along the axial direction F1, the possibility of electrical contact instability or disconnection due to vibration or other factors during use is reduced. This helps maintain the quality and stability of the electrical contacts. Fixing the probe base 51 to the handle 10 , extending the probe 52 along the axial direction F1 of the probe base 51 and contacting the electric contact assembly 60 can simplify the structure of the curling iron 100 and improve the convenience of manufacturing and maintenance.

[0063] More preferably, the electric contact assembly 60 includes an electric contact seat 61 and an electric contact piece 62 .

[0064] The electric contact seat 61 is fixed to the hair curling assembly 20. The electric contact piece 62 is disposed in the electric contact seat 61 and extends along the radial direction F2 and contacts the probe 52 in the axial direction F1.

[0065] Securing the electrical contact holder 61 to the curling assembly 20 helps ensure the stability of the electrical contact assembly 60 during use. The curling assembly 20 is typically the working portion of the curling iron 100, so a secure connection thereto helps improve the reliability of the entire system. The electrical contact 62 extends along the radial direction F2, increasing the contact area with the probe 52. This design improves the reliability and electrical conductivity of the electrical contacts and reduces impedance during current or signal transmission. The electrical contact 62 contacts the probe 52 along the axial direction F1, ensuring a stable electrical connection along the axial direction F1. This design helps maintain the consistency of the electrical contacts and improves electrical contact reliability. The contact between the electrical contact 62 and the probe 52 ensures a tight electrical connection between the electrical contact assembly 60 and the probe assembly 50. This is crucial for transmitting electrical energy or signals to drive the curling iron 100 or perform other related functions. Securing the electrical contact holder 61 to the curling assembly 20 and ensuring that the electrical contact 62 contacts the probe 52 along the axial direction F1 simplifies the structure of the curling iron 100 and improves ease of manufacturing and maintenance. The electric contact piece 62 is extended in the radial direction F2 and contacts the probe 52 in the axial direction F1, which helps to improve the sensitivity of the electric contact and ensures that the electric signal or electric energy can be transmitted in a timely and accurate manner during the operation of the hair curler 100.

[0066] More preferably, the probe 52 includes a probe base 521 , a spring 522 and an electrical contact 523 .

[0067] The probe base 521 is fixed to the probe base 51 and extends along the axial direction F1. One end of the probe base 521 is connected to the drive plate 30, and the other end extends in the opposite direction of the axial direction F1 to form a receiving cavity. A spring 522 is disposed within the receiving cavity. An electrical contact 523 is disposed at one end of the probe base 521 and connected to the spring 522. The spring force of the spring 522 causes the electrical contact 523 to abut against the electrical contact piece 62 along the axial direction F1.

[0068] The probe base 521 is fixed to the probe base 51 to ensure that the relative position between the probe base 521 and the probe base 51 remains stable. This helps maintain consistent electrical contact. The probe base 521 extends along the axial direction F1, with one end connected to the drive plate 30 to transmit electrical energy or signals through the drive plate 30 to control the operation of the curling iron 100. The other end of the probe base 521 extends in the opposite direction of the axial direction F1 to form a receiving cavity. The receiving cavity is designed to accommodate a spring 522. The spring 522 is located within the receiving cavity, providing a certain degree of elasticity and pressure, thereby establishing a spring 522 pressure mechanism between the probe base 521 and the electrical contact 523. This helps maintain close contact between the electrical contact 523 and the electrical contact piece 62. The electrical contact 523 is located at one end of the probe base 521 and is connected to the spring 522. Under the elastic force of the spring 522, the electrical contact 523 abuts the electrical contact piece 62 along the axial direction F1, establishing electrical contact. This helps ensure a reliable electrical connection between the electrical contact 523 and the electrical contact piece 62. The presence of the spring 522 provides some elasticity, allowing the electrical contact 523 to adapt to certain pressure changes and movement. This helps maintain the reliability of the electrical contact under different operating conditions. By using the spring 522 mechanism, a tight, resilient contact can be established between the electrical contact 523 and the electrical contact piece 62, helping to maintain a good electrical connection and reducing electrical contact instability caused by vibration or slight movement during operation.

[0069] More preferably, the electric contact seat 61 includes a seat body 611 , a guide plate 612 and an electric contact slot 613 .

[0070] The side of the base 611 facing away from the handle 10 is fixed to the curling assembly 20. A guide plate 612 is formed on the side of the base 611 proximal to the handle 10. When viewed along the axial direction F1, the output shaft 41 of the motor assembly 40 passes through the middle of the base 611. The guide plate 612 comprises a plurality of concentric rings arranged around the middle. Electrical contact slots 613 are formed between adjacent concentric rings. The electrical contact 62 extends within the slots 613, and the electrical contact 523 abuts against the electrical contact 62 within the slots.

[0071] The side of the base 611 facing away from the handle 10 is fixed to the curling assembly 20, ensuring that the curling assembly 20 is stably attached to the bottom of the curling iron 100. This helps ensure the stability of the entire curling iron 100 structure. A guide plate 612 is formed on the side of the base 611 closest to the handle 10, as viewed along the axial direction F1. The guide plate 612 provides additional support and guidance, ensuring that the output shaft 41 of the motor assembly 40 remains stable in the axial direction F1. The guide plate 612 is typically arranged in multiple concentric rings around the center of the base 611 to increase structural rigidity. The concentric rings provide annular support for the output shaft 41 of the motor assembly 40. This helps reduce swing and deflection in the axial direction F1, ensuring that the torque output by the motor is stably transmitted to the electric contact assembly 60. An electric contact slot 613 is formed between two adjacent concentric rings, providing a specific space for the electric contact 62. This design helps ensure that the electrical contact 62 maintains a stable position in both the axial direction F1 and the radial direction F2, reducing electrical contact instability caused by movement or vibration. The electrical contact 62 is deployed within the electrical contact slot 613, ensuring good contact between the electrical contact 62 and the electrical contact 523. The electrical contact 62 may be designed to deploy in the radial direction F2 to improve the reliability and stability of the electrical contact. The electrical contact 523 abuts the electrical contact 62 within the electrical contact slot 613. This helps establish a reliable electrical connection, ensuring that current or signals can be effectively transmitted to drive the curling iron 100 or perform other functions.

[0072] Preferably, the probes 52 are provided in multiple groups, and the number of electrical contact slots 613 and electrical contact pads 62 corresponds to the number of groups of probes 52. Each group of probes 52 includes at least two probes 52 symmetrically distributed about the center of the base 611. When the handle 10 rotates relative to the curling assembly 20, the probes 52 rotate within the probe slots 52 along the restricted trajectory of the guide plate 612, abutting against the electrical contact pads 62 to maintain electrical contact.

[0073] The use of multiple sets of probes 52 increases the contact area of ​​the electrical contact and improves the efficiency of electrical energy transfer. This design disperses the electrical contact points, reducing reliance on a single point, thereby improving the reliability of the entire system. Controlling the central symmetry of the distribution of each set of probes 52 ensures that, during rotation, each set of probes 52 is evenly distributed around the electrical contact slots 613. This helps maintain the balance and stability of the entire electrical contact system. The probes 52 rotate within the probe slots 52 along the constrained paths of the guide plates 612, ensuring that their movement is limited and that the electrical contact points are unlikely to deviate from their designed positions during operation. This helps maintain the stability of the electrical contact. Each set of probes 52 has a corresponding electrical contact slot 613 and electrical contact pad 62, ensuring that each probe 52 has a dedicated electrical contact area. This helps prevent interference between different probes 52 and improves the reliability of the electrical contact. When the handle 10 rotates relative to the curling assembly 20, the probes 52 move along a specific trajectory, constrained by the guide plates 612, and come into contact with the electrical contact pads 62. This design ensures that the electrical contacts always maintain a relatively stable position during operation of the curling iron 100 .

[0074] More preferably, the side of the electric contact piece 62 close to the handle 10 is expanded into an electric contact surface and abuts against the head of the probe 52, and the side of the electric contact piece 62 facing away from the handle 10 extends along the axial direction F1 to form an electric connection plate 621, and the curling assembly 20 is electrically connected to the electric connection plate 621.

[0075] The electrical contact 62 on the side closest to the handle 10 is extended to form an electrical contact surface. This provides sufficient contact area to ensure a reliable electrical connection. The extended electrical contact surface can abut the corresponding probe 52 tip, ensuring efficient electrical energy transfer. Positioning the electrical contact surface closer to the handle 10 simplifies the design while ensuring easier contact with the probe 52 tip during operation, reducing the possibility of electrical contact failure due to movement or vibration. The electrical contact 62 on the side facing away from the handle 10 extends along the axial direction F1 to form an electrical connection plate 621. This may be intended to structurally separate the electrical contact 62 from the handle 10, preventing unnecessary friction or interference between the electrical contact surface and the handle 10. Furthermore, the extension of the electrical connection plate 621 may help maintain electrical contact stability. Electrically connecting the curling assembly 20 to the electrical connection plate 621 establishes an electrical connection between the electrical contact surface, the probe 52 tip, and the electrical contact 62. This facilitates the transfer of electrical energy to the curling assembly 20, enabling the electric drive and other related functions of the curling iron 100.

[0076] More preferably, the hair curler 100 further includes: a first coupling 70 , a second coupling 80 and a bearing 90 .

[0077] One end of the first coupling 70 is connected to the probe base 51, and the other end is connected to the motor assembly 40. One end of the second coupling 80 is connected to the electric contact base 61, and the other end is connected to the curling assembly 20. A bearing 90 is provided at the end of the second coupling 80 near the handle 10 and is connected to the output shaft 41 of the motor assembly 40.

[0078] The first coupling 70 connects the probe base 51 and the motor assembly 40, ensuring that the torque output by the motor assembly 40 can be transmitted to the probe assembly 50. This helps drive the rotational motion of the probe assembly 50, thereby affecting the motion of the electric contact assembly 60 and the curling assembly 20. The second coupling 80 connects the electric contact base 61 and the curling assembly 20, ensuring torque transmission between the electric contact assembly 60 and the curling assembly 20. This design allows the output of the motor assembly 40 to be effectively transmitted to the curling assembly 20, enabling the operation of the curling iron 100 or other related functions. A bearing 90 is located at the end of the second coupling 80 near the handle 10 and is connected to the output shaft 41 of the motor assembly 40. The presence of the bearing 90 provides axial support F1 for the output shaft 41, helping to reduce axial F1 swing caused by rotational motion and ensuring stable torque transmission.

[0079] More preferably, when viewed along the axial direction F1 , the probes 52 of the same group form a central support with the middle of the base 611 as the center, and two adjacent groups of probes 52 are staggered to form a phase difference of 90°.

[0080] The central support arrangement ensures that probes 52 from the same group are evenly distributed throughout the center of the base 611. This helps maintain uniform loading on the electrical contact points, improving electrical contact stability and reliability. By staggering adjacent groups of probes 52 to create a 90° phase difference, the concentration of electrical contact points can be reduced. This distribution helps reduce wear caused by excessive load on a specific electrical contact point, thereby extending the life of the system. Controlling the phase difference between the probes 52 helps minimize impedance changes during electrical contact. Impedance stability is important for both power transmission and electrical contact reliability. Controlling the phase difference between adjacent groups of probes 52 helps improve the dynamic balance of the entire system. This is crucial for the coordinated movement of high-speed moving components, such as the motor output shaft 41, the electrical contact assembly 60, and the curling assembly 20, helping to reduce vibration and noise caused by imbalance. The 90° phase difference optimizes electrical contact performance, ensures smooth transitions between electrical contacts during rotational motion, avoids sudden electrical contact changes, and improves system stability.

[0081] More preferably, when viewed along the axial direction F1, a through hole for the power contact 523 to pass through is formed on the probe base 51, and the through hole penetrates the probe base 51 along the axial direction F1. When viewed along the radial direction F2, the portion of the power contact 523 that contacts the power contact piece 62 along the axial direction F1 is arc-shaped.

[0082] The presence of the through-hole allows the electrical contact 523 to pass through the probe base 51, achieving electrical contact transmission. This design simplifies circuit layout and allows the electrical connection between the electrical contact 523 and the probe assembly 50 to pass through the probe base 51. Furthermore, the design of the through-hole in the axial direction F1 helps ensure that the electrical contact 523 can effectively pass through the probe base 51 throughout the entire axial direction F1. The curved design of the electrical contact 523 helps ensure a uniform electrical contact area when the electrical contact 523 contacts the electrical contact piece 62. The curved design allows the electrical contact 523 to evenly contact the electrical contact piece 62 during contact, reducing resistance variations and wear caused by uneven contact. The curved design of the electrical contact 523, viewed along the radial direction F2, is intended to provide a larger contact area in the radial direction F2. This helps improve the reliability and conductivity of the electrical contact while reducing impedance variations during electrical contact. The curved design also helps reduce wear and friction between the electrical contact 523 and the electrical contact piece 62. By providing a larger contact area, localized wear at the contact point can be reduced, extending the life of the system.

[0083] Thus, by providing a probe assembly 50, one end of which is fixed to the motor assembly 40 and the other end of which extends along the axial direction F1, and an electric contact assembly 60, which is fixed to the curling assembly 20 and connected to the output shaft 41 of the motor assembly 40, and electrically connected to the other end of the probe assembly 50 along the axial direction F1, the probe assembly 50 and the electric contact assembly 60 are electrically connected along the axial direction F1. The output shaft 41 of the motor assembly 40 outputs torque to the electric contact assembly 60, driving the electric contact assembly 60 to rotate relative to the probe assembly 50, thereby driving the curling assembly 20, which is fixed to the electric contact assembly 60, to rotate relative to the handle 10, which is fixed to the probe assembly 50.

[0084] The above-described embodiments merely represent several embodiments of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A hair curler for realizing rotating electrical contact based on a probe, comprising a handle extending in an axial direction and a hair curling assembly rotating relative to the handle, characterized in that: The hair curler also includes: Driver board, A motor assembly is fixed in the handle and connected to the drive plate; A probe assembly, one end of which is fixed to the handle and the other end of which extends axially; An electric contact assembly, one end of which is fixed to the hair curling assembly and connected to the output shaft of the motor assembly, and the other end of which is axially abutted against the other end of the probe assembly; The output shaft of the motor assembly outputs torque to the electric contact assembly to drive the electric contact assembly to rotate relative to the probe assembly, thereby driving the curling assembly fixed to the electric contact assembly to rotate relative to the handle fixed to the probe assembly.

2. The hair curler for realizing rotating electrical contact based on a probe according to claim 1, characterized in that: The probe assembly comprises: A probe seat, fixed to the handle; The probe is arranged in the probe seat and extends axially to abut against the electric contact component in the axial direction to achieve electrical connection.

3. The hair curler for realizing rotating electrical contact based on a probe according to claim 2, characterized in that: The electric contact assembly comprises: An electric contact seat, fixed to the hair curling assembly; The electric contact sheet is arranged in the electric contact seat, is extended radially, and is in contact with the probe in the axial direction.

4. The hair curler for realizing rotating electrical contact based on a probe according to claim 3, characterized in that: The probe comprises: A probe seat is fixed on the probe seat and extends in the axial direction, one end of the probe seat is connected to the driving plate, and the other end of the probe seat extends in the opposite direction of the axial direction to form a receiving cavity; A spring is disposed in the accommodating cavity; An electrical contact is provided at one end of the probe seat and connected to the spring; wherein, The electric contact abuts against the electric contact piece along the axial direction under the elastic force of the spring.

5. The hair curler for realizing rotating electrical contact based on a probe according to claim 4, characterized in that: The electric contact seat comprises: A seat body, a side of which is away from the handle and is fixed to the hair curling assembly; A guide plate is formed on one side of the seat body close to the handle. When viewed along the axial direction, the output shaft of the motor assembly passes through the middle of the seat body. The guide plate is a plurality of concentric rings arranged around the middle. The electric contact groove is formed between two adjacent concentric rings. The electric contact piece is spread out in the electric contact groove. The electric contact head is in contact with the electric contact piece arranged in the electric contact groove.

6. The hair curler for realizing rotating electrical contact based on a probe according to claim 5, characterized in that: The number of the probes is multiple groups, the number of the electric contact slots and the electric contact sheets corresponds to the number of the probe groups, and each group of probes includes at least two probes that are centrally symmetrically distributed with the middle of the seat as the center; When the handle rotates relative to the hair curling assembly, the probe rotates in the probe groove along the constraint track of the guide plate and abuts against the electric contact sheet to maintain electrical contact.

7. The hair curler for realizing rotating electrical contact based on a probe according to claim 4, characterized in that: The side of the electric contact sheet close to the handle is unfolded into an electric contact surface and abuts against the probe head. The side of the electric contact sheet away from the handle is extended axially to form an electric connection plate. The curling assembly is electrically connected to the electric connection plate.

8. The hair curler for realizing rotating electrical contact based on a probe according to claim 4, characterized in that: The hair curler also includes: A first coupling, one end of which is connected to the probe base and the other end of which is connected to the motor assembly; A second coupling, one end of which is connected to the electric contact seat and the other end of which is connected to the curling assembly; The bearing is arranged at one end of the second coupling close to the handle and is connected to the output shaft of the motor assembly.

9. The hair curler for realizing rotating electrical contact based on a probe according to claim 5, characterized in that: When observed along the axial direction, the same group of probes forms a central support with the middle of the base body as the center, and two adjacent groups of probes are staggered to form a phase difference of 90°.

10. The hair curler for realizing rotating electrical contact based on a probe according to claim 4, characterized in that: When viewed along the axial direction, a through hole is formed on the probe seat for the power supply contact to pass through, and the through hole passes through the probe seat along the axial direction; When viewed in the radial direction, the portion of the electric contact that contacts the electric contact piece in the axial direction is arc-shaped.

Images