CN117678845A - A hair curler based on a probe that realizes rotating electrical contact - Google Patents

Abstract

The invention relates to a hair curler for realizing rotary electric contact based on a probe, comprising a handle extending along the axial direction and a hair curling component rotating relative to the handle, and further comprising: the motor component is fixed in the handle and is connected with the driving plate; one end of the probe assembly is fixed with the handle, and the other end of the probe assembly extends along the axial direction; one end of the electric contact assembly is fixed with the hair curling assembly and is connected with the output shaft of the motor assembly, and the other end of the electric contact assembly is in abutting connection with the other end of the probe assembly in the axial direction; the output shaft of the motor assembly outputs torque to the electric contact assembly so as to drive the electric contact assembly to rotate relative to the probe assembly, and therefore the hair curling assembly fixed with the electric contact assembly is driven to rotate relative to the handle fixed with the probe assembly. The probe assembly and the electric contact assembly are electrically contacted in the axial direction.

Description

A hair curler based on a probe that realizes rotating electrical contact

Technical field

The present invention relates to the technical field of hair curling irons, and in particular to a hair curling iron that realizes rotational electrical contact based on probes.

Background technique

Home appliances used for curling and straightening hair are called curling irons, curling irons or hair straighteners. A hair curling iron is a handheld electronic product used to curl hair. Its main components are a handle and a roller assembly. The handle and the reel assembly will rotate relative to each other during operation, and need to be electrically connected at all times to drive the reel assembly to generate heat. Currently, the handle and reel assembly on the market achieve electrical contact through electrical contact sheets, and the contact area is large. This results in large friction, and the curling iron will be subject to radial force when working. If used for a long time, it will lead to poor electrical contact between the relatively rotating handle and the roller assembly, affecting the service life of the product. Therefore, it is necessary to provide a hair curling iron with a longer service life and a more stable electrical connection.

Contents of the invention

The purpose of the present invention is to provide a hair curling iron with longer service life and more stable electrical connection.

According to one aspect of the present invention, a hair curling iron that realizes rotational electrical contact based on a probe is provided, including an axially extending handle and a curling component that rotates relative to the handle. The hair curling iron further includes:

Driver board,

The motor assembly is fixed in the handle and connected to the drive board;

The probe assembly has one end fixed to the handle and the other end extending along the axial direction;

An electric contact component, one end of which is fixed to the hair curling component and connected to the output shaft of the motor component, and the other end of which is in axial contact with the other end of the probe component;

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 relative to the probe assembly. Fixed handle turns.

More preferably, the probe assembly includes:

Probe holder, fixed to the handle;

The probe is disposed in the probe holder and extends in the axial direction to abut the electrical contact component in the axial direction to achieve electrical connection.

More preferably, the electrical contact assembly includes:

An electric contact base is fixed to the hair curling component;

The electric contact piece is arranged in the electric contact base, expands in the radial direction, and contacts the probe in the axial direction.

More preferably, the probe includes:

A probe holder is fixed on the probe holder and extends along the axial direction. One end of the probe holder is connected to the drive plate, and the other end extends in the opposite direction of the axial direction to form a receiving cavity;

Spring, located in the accommodation cavity;

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

The electric contact contacts the electric contact piece along the axial direction under the elastic force of the spring.

More preferably, the electrical contact includes:

The side of the base body facing away from the handle is fixed to the hair curling component;

A guide plate is formed on a side of the base body close to the handle. Viewed along the axial direction, the output shaft of the motor assembly passes through the middle part of the base body. The guide plate is a plurality of guide plates arranged around the middle part. concentric rings;

An electric contact groove is formed between two adjacent concentric rings, the electric contact piece is spread out in the electric contact groove, and the electric contact head is in contact with the electric contact piece provided in the electric contact.

More preferably, the number of probes is multiple groups, the number of electrical contact slots and electrical contact pieces corresponds to the number of groups of probes, and each group of probes includes at least two probes centered on the middle of the base body. Probes that form a centrally symmetric distribution;

When the handle rotates relative to the hair curling assembly, the probe rotates along the constrained trajectory of the guide plate in the probe slot and abuts against the electrical contact piece to maintain electrical contact.

More preferably,

The side of the electric contact piece close to the handle unfolds into an electric contact surface and abuts against the probe head. The side of the electric contact piece away from the handle extends in the axial direction to form an electric connection plate. The curling hair The component is electrically connected to the electrical connection board.

More preferably, the hair curling iron further includes:

A first coupling has one end connected to the probe holder and the other end connected to the motor assembly;

The second coupling has one end connected to the electric contact base and the other end connected to the curling assembly;

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.

More preferably,

Viewed along the axial direction, the same group of probes forms a central support with the middle part of the base as the center, and the two adjacent groups of probes are staggered to form a phase difference of 90°.

More preferably, when viewed along the axial direction, a through hole through which the power supply contact passes is formed on the probe holder, and the through hole penetrates the probe holder along the axial direction;

Viewed along the radial direction, the portion of the electrical contact that contacts the electrical contact blade in the axial direction is arc-shaped.

The invention has the following beneficial effects:

By arranging a probe assembly with one end fixed to the motor assembly and the other end extending axially, and one end fixed to the curling assembly and connected to the output shaft of the motor assembly, the other end axially offsets the other end of the probe assembly The electrical contact component is connected to realize electrical contact between the probe component and the electrical contact component in the axial direction. 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.

Description of the drawings

In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic three-dimensional structural diagram of a hair curling iron according to an embodiment of the present invention;

Figure 2 is an exploded exploded view of the hair curling iron according to an embodiment of the present invention;

Figure 3 is a side view of the hair curler according to an embodiment of the present invention;

Figure 4 is a schematic cross-sectional view at A-A in Figure 3;

Figure 5 is a schematic cross-sectional view at B-B in Figure 3;

Figure 6 is a schematic three-dimensional structural diagram of the probe assembly and the electric contact assembly according to an embodiment of the present invention;

Figure 7 is a schematic three-dimensional structural diagram of the probe assembly and the electric contact assembly according to an embodiment of the present invention from another angle;

Figure 8 is a schematic diagram of the combined structure of the probe assembly and the electric contact assembly according to an embodiment of the present invention;

Figure 9 is an exploded exploded structural diagram of the probe assembly and the electric contact assembly according to an embodiment of the present invention;

Figure 10 is a schematic three-dimensional structural diagram of a probe according to an embodiment of the present invention;

Figure 11 is a schematic cross-sectional structural diagram of a probe according to an embodiment of the present invention;

Figure 12 is a schematic three-dimensional structural diagram of an electrical contact piece according to an embodiment of the present invention;

Explanation of reference numbers:

100. Hair curling iron; 10. Handle; 20. Curling component; 30. Drive board; 40. Motor component; 50. Probe component; 60. Electric contact component; 51. Probe holder; 52. Probe; 61. Electrical Contact base; 62. Electric contact piece; 521. Probe holder; 522. Spring; 523. Electric contact; 611. Base body; 612. Guide plate; 613. Electric contact groove; 70. First coupling; 80. Second coupling; 90, bearing; F1, axial; F2, radial; 41, output shaft; 621, electrical connection plate.

Detailed ways

In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough understanding of the present disclosure will be provided.

It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements may also be present. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may also be intervening elements present. The terms "vertical," "horizontal," "left," "right" and similar expressions are used herein for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which the invention belongs. The terminology used herein in the description of the invention is for the purpose of describing specific embodiments only and is not intended to limit the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to Figures 1 to 12. One embodiment of the present invention provides a hair curling iron 100 that realizes rotational electrical contact based on a probe 52. It includes a handle 10 extending along the axial direction F1 and a curling component 20 that rotates relative to the handle 10. The hair curler 100 also includes: a drive board 30 , a motor assembly 40 , a probe assembly 50 and an electric contact assembly 60 .

Among them, the motor assembly 40 is fixed in the handle 10 and connected with the drive board 30 . The drive board 30 is also a circuit board and is used to connect 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 hair curling assembly 20 and connected to the output shaft 41 of the motor assembly 40 , and the other end is in contact with the other end of the probe assembly 50 in the axial direction F1 . The output shaft 41 of the motor assembly 40 outputs torque to the electric contact assembly 60 to drive the electric contact assembly 60 to rotate relative to the probe assembly 50 , thereby driving the curling assembly 20 fixed to the electric contact assembly 60 Rotate relative to the handle 10 fixed to the probe assembly 50 .

Among them, the motor assembly 40 is fixed in the handle 10 and connected to the drive board 30, which helps to achieve a compact and integrated structure of the hair curler 100. The drive board 30 (circuit board) is connected to the motor assembly 40 and is used to control the operation of the motor. The circuit board includes control logic, power management, and possibly sensors to ensure safe and efficient operation of the curling iron 100. Fixing one end of the probe assembly 50 on the handle 10 helps ensure that the probe 52 remains in a relatively stable position during use. This is important for the controllability and user experience of the curling iron 100. The electric contact component 60 and the hair curling component 20 are fixed to ensure relative movement between them. In this way, the movement of the electric contact component 60 will be transmitted to the hair curling component 20 to realize the hair curling function. The output shaft 41 of the motor assembly 40 outputs torque, and this torque is transmitted to the electric contact assembly 60 through the connection with the electric contact assembly 60 . The electric contact assembly 60 is driven to rotate relative to the probe assembly 50 fixed on the handle 10 through the torque output by the motor. This relative movement is the basis for the normal 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 will drive 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.

More preferably, the probe assembly 50 includes: a probe base 51 and a probe 52 .

The probe base 51 is fixed to the handle 10 . The probe 52 is disposed in the probe holder 51 and extends along the axial direction F1 to contact the electrical contact assembly 60 in the axial direction F1 to achieve electrical connection.

Among them, fixing 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 holds, so stability is critical to the user experience. The probe 52 extends along the axial direction F1 and contacts the electrical contact assembly 60 to ensure that a stable electrical connection can be established in the axial direction F1. This connection method helps maintain the consistency of electrical contacts and improves the reliability of electrical contacts. By establishing an electrical connection in the axial direction F1, electrical contact between the electrical contact assembly 60 and the probe assembly 50 is achieved. The purpose of this electrical connection is to transmit electrical energy or signals when the curling iron 100 is operating, such as to drive the movement of the electrical contact assembly 60 . The extension of the probe 52 in the axial direction F1 ensures that it can effectively contact the electrical contact assembly 60 so that current or signals can be smoothly transmitted between the two. By extending the probe 52 in the axial direction F1, the possibility of instability or disconnection of the electrical contacts due to vibration or other factors during use can be reduced. This helps maintain the quality and stability of electrical contacts. The probe holder 51 is fixed to the handle 10 , the probe 52 extends in the axial direction F1 of the probe holder 51 , and is in contact with the electric contact assembly 60 , which simplifies the structure of the hair curler 100 and improves the convenience of manufacturing and maintenance.

More preferably, the electric contact assembly 60 includes: an electric contact base 61 and an electric contact piece 62 .

The electric contact base 61 is fixed to the hair curling component 20 . The electrical contact piece 62 is disposed in the electrical contact base 61 , expands along the radial direction F2 , and contacts the probe 52 in the axial direction F1 .

Among them, fixing the electric contact base 61 to the hair curling assembly 20 helps to ensure the stability of the electric contact assembly 60 during use. The hair curling assembly 20 is usually the working part of the hair curling iron 100, so its solid connection helps to improve the reliability of the entire system. The electrical contact piece 62 expands along the radial direction F2, which helps to expand the contact area with the probe 52. This design can improve the reliability and electrical conductivity of electrical contacts and reduce the impedance during current or signal transmission. The electrical contact piece 62 contacts the probe 52 in the axial direction F1 to ensure that a stable electrical connection is established in the axial direction F1. This design helps maintain electrical contact consistency and improves electrical contact reliability. Through the contact between the electrical contact piece 62 and the probe 52 , a tight electrical connection between the electrical contact assembly 60 and the probe assembly 50 is ensured. This is essential for delivering electrical energy or signals to drive movement of the curling iron 100 or perform other related functions. The electric contact base 61 is fixed to the hair curling assembly 20, and the electric contact piece 62 contacts the probe 52 in the axial direction F1, which can simplify the structure of the hair curler 100 and improve the convenience of manufacturing and maintenance. The electrical contact piece 62 expands in the radial direction F2 and contacts the probe 52 in the axial direction F1, which helps to improve the sensitivity of the electrical contact and ensures that electrical signals or electrical energy can be transmitted timely and accurately during the operation of the hair curler 100.

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

Among them, the probe holder 521 is fixed on the probe holder 51 and extends along the axial direction F1. One end of the probe holder 521 is connected to the drive plate 30, and the other end extends in the opposite direction of the axial direction F1 to form an accommodation. cavity. The spring 522 is provided in the accommodation cavity. The electric contact 523 is provided at one end of the probe base 521 and is connected to the spring 522; wherein the electric contact 523 is connected to the electric contact piece 62 along the axial direction F1 under the elastic force of the spring 522. Butt against each other.

The probe base 521 is fixed on 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 the consistency of electrical contact. The probe base 521 extends along the axial direction F1, and one end thereof is connected to the driving board 30 to transmit electrical energy or signals through the driving board 30 to control the operation of the hair curling iron 100. The other end of the probe base 521 extends in the opposite direction along the axis F1 to form an accommodation cavity. The receiving cavity is designed to accommodate the spring 522 . The spring 522 is disposed in the accommodation cavity and provides certain 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 electrical contacts 523 and electrical contact blades 62 . The electrical contact 523 is provided 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 to establish electrical contact. This helps ensure a reliable electrical connection between electrical contacts 523 and electrical contact blades 62 . The presence of the spring 522 can provide some elasticity so that the electrical contact 523 can adapt to certain pressure changes and movements. This helps maintain electrical contact reliability under varying operating conditions. By using the spring 522 mechanism, a tight, elastic contact can be established between the electrical contact 523 and the electrical contact blade 62, helping to maintain a good electrical connection and reduce electrical damage caused by vibration or small movements during operation. Contact instability.

More preferably, the electric contact base 61 includes: a base body 611, a guide plate 612 and an electric contact groove 613.

The side of the base body 611 facing away from the handle 10 is fixed to the hair curling component 20 . The guide plate 612 is formed on a side of the base 611 close to the handle 10. 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 is a surrounding A plurality of concentric rings are provided in the middle part. The electric contact slot 613 is formed between two adjacent concentric rings, the electric contact piece 62 is unfolded in the electric contact slot 613, the electric contact 523 and the electric contact piece 62 provided in the electric contact Butt against each other.

The side of the base body 611 facing away from the handle 10 is fixed to the hair curling component 20 to ensure that the hair curling component 20 can be stably attached to the bottom of the hair curling iron 100 . This helps ensure the stability of the entire curling iron 100 structure. The guide plate 612 is formed on a side of the base 611 close to the handle 10 when viewed along the axial direction F1. The existence of the guide plate 612 can provide additional support and guidance to ensure that the output shaft 41 of the motor assembly 40 remains stable in the axial direction F1. The guide plate 612 usually has multiple concentric rings surrounding the middle of the base 611 to increase the structural strength. The arrangement of concentric rings can provide annular support for the output shaft 41 of the motor assembly 40 . This helps reduce the swing and deflection in the axis F1 and ensures that the torque output by the motor can be stably transmitted to the electric contact assembly 60 . The electrical contact groove 613 is formed between two adjacent concentric rings to provide a specific space for the electrical contact piece 62 . Such a design helps ensure that the electrical contact piece 62 has a stable position in both the axial direction F1 and the radial direction F2, thereby reducing instability of the electrical contact caused by movement or vibration. The electrical contact piece 62 is deployed in the electrical contact groove 613 to ensure that the electrical contact piece 62 can maintain good contact with the electrical contact 523 . The electrical contact piece 62 may be designed to expand in the radial direction F2 to improve the reliability and stability of the electrical contact. The electrical contact 523 is in contact with the electrical contact piece 62 provided in the electrical contact groove 613 . This helps establish a reliable electrical connection and ensures that current or signals can be efficiently transmitted to drive the movement of the curling iron 100 or perform other functions.

More preferably, the number of probes 52 is multiple groups, the number of electrical contact slots 613 and electrical contact sheets 62 corresponds to the number of groups of probes 52, and each group of probes 52 includes at least two or more. The middle part of the base body 611 forms centrally symmetrically distributed probes 52 . When the handle 10 rotates relative to the hair curling assembly 20, the probe 52 rotates along the constrained trajectory of the guide plate 612 in the groove of the probe 52, and abuts against the electrical contact piece 62 to maintain electrical contact.

Among them, using multiple sets of probes 52 can increase the contact area of the electrical contact and improve the efficiency of electrical energy transmission. Such a design can disperse electrical contact points and reduce reliance on a single point, thereby improving the reliability of the entire system. Controlling the centrally symmetrical distribution of each group of probes 52 can ensure that each group of probes 52 can be evenly distributed around the electrical contact slot 613 during rotation. This helps maintain balance and stability of the entire electrical contact system. The probe 52 rotates along the constrained trajectory of the guide plate 612 in the groove of the probe 52, ensuring that the movement of the probe 52 is restricted to a certain extent, so that the electrical contact point will not easily deviate from the designed position during operation. This helps maintain the stability of the electrical contact. Each group of probes 52 has corresponding electrical contact slots 613 and electrical contact pieces 62, ensuring that each probe 52 has a dedicated electrical contact area. This helps avoid interference between different probes 52 and improves the reliability of electrical contact. When the handle 10 rotates relative to the hair curling assembly 20 , the probe 52 moves along a specific trajectory under the constraints of the guide plate 612 and abuts against the electrical contact piece 62 . This design ensures that the electrical contact points remain in a relatively stable position during operation of the curling iron 100 .

More preferably, the side of the electrical contact piece 62 close to the handle 10 unfolds into an electrical contact surface and abuts the head of the probe 52 , and the side of the electrical contact piece 62 facing away from the handle 10 extends along the axial direction. F1 extends to form an electrical connection plate 621, and the hair curling component 20 is electrically connected to the electrical connection plate 621.

The electrical contact piece 62 is unfolded into an electrical contact surface close to the handle 10 in order to provide a sufficient contact area to ensure reliable electrical connection. The unfolded electrical contact surface can abut with the corresponding probe 52 head to ensure effective transmission of electrical energy. Placing the electrical contact surface close to the side of the handle 10 not only simplifies the design, but also ensures that the electrical contact surface can more easily contact the probe 52 head during operation, thereby reducing the possibility of electrical contact failure due to movement or vibration. The electrical contact plate 62 extends along the axial direction F1 away from the handle 10 to form an electrical contact plate 621 . This may be to separate the structure between the electrical contact patch 62 and the handle 10 to prevent unnecessary interference between the electrical contact surface and the handle 10 . friction or interference. At the same time, the extension of the electrical contact plate 621 may help maintain the stability of the electrical contact. Electrically connecting the hair curling component 20 to the electrical connection plate 621 means that an electrical connection is established through the electrical contact surface, the probe 52 head and the electrical contact piece 62 . This helps to transfer electrical energy to the hair curling component 20 to realize electric driving of the hair curling iron 100 or other related functions.

More preferably, the hair curling iron 100 further includes: a first coupling 70 , a second coupling 80 and a bearing 90 .

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 hair curling assembly 20 . The bearing 90 is provided at one end of the second coupling 80 close to the handle 10 and is connected to the output shaft 41 of the motor assembly 40 .

The first coupling 70 connects the probe holder 51 and the motor assembly 40 to ensure that the torque output by the motor assembly 40 can be transmitted to the probe assembly 50 . This helps drive the rotational movement of the probe assembly 50, thereby affecting the movement of the electrical contact assembly 60 and the curling assembly 20. The second coupling 80 connects the electric contact base 61 and the hair curling assembly 20 to ensure torque transmission between the electric contact assembly 60 and the hair curling assembly 20 . Such a design enables the output of the motor assembly 40 to be effectively transmitted to the hair curling assembly 20, thereby realizing the action of the hair curling iron 100 or other related functions. The bearing 90 is provided at an end of the second coupling 80 close to the handle 10 and is connected to the output shaft 41 of the motor assembly 40 . The existence of the bearing 90 provides axial F1 support for the output shaft 41, helps to reduce the axial F1 swing caused by rotational motion, and ensures the stability of torque transmission.

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

The arrangement of the central support ensures that the same group of probes 52 are evenly distributed in the middle of the base 611 . This helps maintain an even load on the electrical contact points, improving the stability and reliability of the electrical contacts. By staggering two adjacent groups of probes 52 to form a phase difference of 90°, the concentration of electrical contact points can be reduced. This distribution helps reduce wear caused by excessive loading of electrical contacts at a specific location, extending the life of the system. Controlling the phase difference of the probes 52 helps reduce impedance changes during electrical contact. The stability of the impedance is important both for the transmission of electrical energy and the reliability of the electrical contact. Controlling the phase difference between two adjacent groups of probes 52 helps to improve the dynamic balance of the entire system. This is very important for the coordinated movement of high-speed moving parts, such as the motor output shaft 41, the electric contact assembly 60 and the curling assembly 20, and helps reduce vibration and noise caused by imbalance. The 90° phase difference can optimize the electrical contact performance, ensure the smooth transition of the electrical contact points during rotational motion, avoid sudden electrical contact changes, and improve the stability of the system.

More preferably, when viewed along the axial direction F1, a through hole through which the power supply contact 523 passes is formed on the probe holder 51, and the through hole penetrates the probe holder 51 along the axial direction F1. Viewed along the radial direction F2, the portion of the electrical contact 523 that contacts the electrical contact blade 62 in the axial direction F1 is arc-shaped.

The existence of the through hole allows the electrical contact 523 to pass through the probe holder 51 to realize the transmission of electrical contact. This design simplifies the circuit layout and allows the electrical connection between the electrical contacts 523 and the probe assembly 50 to pass through the probe base 51 . At the same time, the design of the axial F1 through hole helps ensure that the electrical contact 523 can effectively pass through the probe holder 51 in the entire axial F1 range. The arc-shaped design of the electrical contact 523 helps ensure that when the electrical contact 523 contacts the electrical contact blade 62, a uniform electrical contact area can be provided. The arc design allows the electrical contact 523 to evenly resist the electrical contact piece 62 when making contact, thereby reducing resistance changes and wear caused by uneven contact. The arc-shaped design of the electrical contact 523 when viewed along the radial direction F2 is to provide a larger contact area in the radial direction F2. This helps improve the reliability and conductivity of electrical contacts while reducing impedance changes during electrical contact. The curved design also helps reduce wear and friction between the electrical contacts 523 and the electrical contact blades 62 . By providing a larger contact area, localized wear at the contact points is reduced and the life of the system is extended.

Thereby, by arranging the probe assembly 50 with one end fixed to the motor assembly 40 and the other end extending in the axial direction F1, and fixed to the hair curling assembly 20, and connected to the output shaft 41 of the motor assembly 40, and in the axial direction F1 The electrical contact assembly 60 is electrically connected to the other end of the probe assembly 50 to realize electrical contact between the probe assembly 50 and the electrical contact assembly 60 in the axial direction F1. The output shaft 41 of the motor assembly 40 outputs torque to the electric contact assembly 60 to drive the electric contact assembly 60 to rotate relative to the probe assembly 50, thereby driving the curling assembly 20 fixed to the electric contact assembly 60 relative to the handle 10 fixed to the probe assembly 50 Turn.

The above-described embodiments only express several embodiments of the present invention. The descriptions are relatively specific and detailed, but should not be construed as limiting the scope of the patent application. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the patent of the present invention should be determined by the appended claims.

Claims (10)

1. A hair curling iron that realizes rotational electrical contact based on a probe, including an axially extending handle and a curling component that rotates relative to the handle, characterized in that the hair curling iron also includes: Driver board, The motor assembly is fixed in the handle and connected to the drive board; The probe assembly has one end fixed to the handle and the other end extending along the axial direction; An electric contact component, one end of which is fixed to the hair curling component and connected to the output shaft of the motor component, and the other end of which is in axial contact with the other end of the probe component; 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 relative to the probe assembly. Fixed handle turns. 2. The hair curling iron that realizes rotational electrical contact based on probes according to claim 1, characterized in that the probe assembly includes: Probe holder, fixed to the handle; The probe is disposed in the probe holder and extends in the axial direction to abut the electrical contact component in the axial direction to achieve electrical connection. 3. The hair curling iron that implements rotational electrical contact based on probes according to claim 2, characterized in that the electrical contact assembly includes: An electric contact base is fixed to the hair curling component; The electric contact piece is arranged in the electric contact base, expands in the radial direction, and contacts the probe in the axial direction. 4. The hair curling iron that realizes rotational electrical contact based on a probe according to claim 3, characterized in that the probe includes: A probe holder is fixed on the probe holder and extends along the axial direction. One end of the probe holder is connected to the drive plate, and the other end extends in the opposite direction of the axial direction to form a receiving cavity; Spring, located in the accommodation cavity; An electrical contact is provided at one end of the probe base and connected to the spring; wherein, The electric contact contacts the electric contact piece along the axial direction under the elastic force of the spring. 5. The hair curling iron that realizes rotational electrical contact based on the probe according to claim 4, characterized in that the electrical contact base includes: The side of the base body facing away from the handle is fixed to the hair curling component; A guide plate is formed on a side of the base body close to the handle. Viewed along the axial direction, the output shaft of the motor assembly passes through the middle part of the base body. The guide plate is a plurality of guide plates arranged around the middle part. concentric rings; An electric contact groove is formed between two adjacent concentric rings, the electric contact piece is spread out in the electric contact groove, and the electric contact head is in contact with the electric contact piece provided in the electric contact. 6. The hair curler for realizing rotating electrical contact based on probes according to claim 5, characterized in that the number of said probes is multiple groups, and the number of said electrical contact slots and electrical contact pieces is equal to the number of said probes. Corresponding to the number of groups, each group of probes includes at least two probes that are centrally symmetrically distributed with the middle of the base body as the center; When the handle rotates relative to the hair curling assembly, the probe rotates along the constrained trajectory of the guide plate in the probe slot and abuts against the electrical contact piece to maintain electrical contact. 7. The hair curling iron that realizes rotational electrical contact based on the probe according to claim 4, characterized in that: The side of the electric contact piece close to the handle unfolds into an electric contact surface and abuts against the probe head. The side of the electric contact piece away from the handle extends in the axial direction to form an electric connection plate. The curling hair The component is electrically connected to the electrical connection board. 8. The hair curling iron that implements rotational electrical contact based on probes according to claim 4, characterized in that the hair curling iron further includes: A first coupling has one end connected to the probe holder and the other end connected to the motor assembly; The second coupling has one end connected to the electric contact base and the other end connected to the curling assembly; 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. 9. The hair curling iron that realizes rotational electrical contact based on the probe according to claim 5, characterized in that: Viewed along the axial direction, the same group of probes forms a central support with the middle part of the base as the center, and the two adjacent groups of probes are staggered to form a phase difference of 90°. 10. The hair curling iron that realizes rotational electrical contact based on the probe according to claim 4, characterized in that: Viewed along the axial direction, a through hole through which the power supply contact passes is formed on the probe holder, and the through hole penetrates the probe holder along the axial direction; Viewed along the radial direction, the portion of the electrical contact that contacts the electrical contact blade in the axial direction is arc-shaped.