Nursing appliance accessory and nursing appliance

Abstract

This invention discloses a nursing appliance accessory and a nursing appliance. The accessory includes: a fixing part having a first adapter plate; and a rotating part configured to rotatable relative to the axis of the fixing part, having a second adapter plate axially opposed to the first adapter plate. The first adapter plate has a floating electrical contact mechanism protruding toward the second adapter plate, and the second adapter plate has an electrical contact track on its opposing surface facing the first adapter plate. The floating electrical contact mechanism is configured to roll and / or slide along the electrical contact track during the movement of the rotating part relative to the fixing part, while simultaneously axially supporting the rotating part. The nursing appliance accessory of this invention provides a stable rotational electrical connection during the relative rotation of the fixing part and the rotating part, thereby providing users with a stable and reliable automated hair styling experience.

Description

Technical Field

[0001] This invention relates to the field of nursing appliances, and more particularly to a nursing appliance accessory and a nursing appliance. Background Technology

[0002] Currently, hair care devices come with accessories to meet users' different hair styling needs. However, the known accessories have a low degree of automation, and users still need to manually operate these accessories to achieve styling operations such as curling.

[0003] In response, some known nursing appliance accessories have designed some components to be movable in order to simplify the user's operation. However, in this case, it is difficult to achieve a stable and reliable electrical connection between the fixed and movable parts, thus compromising the reliable realization of the intended function of the nursing appliance accessory.

[0004] Therefore, there is an urgent need to provide an improved power supply solution to support the automated design of nursing appliance accessories, thereby enhancing the functionality of nursing appliances and the user experience.

[0005] The background description is provided for the purpose of understanding the relevant technologies in this field and is not intended as an admission of prior art. Summary of the Invention

[0006] Therefore, embodiments of the present invention aim to provide a nursing appliance accessory and a nursing appliance that can solve at least one of the problems mentioned above, thereby achieving a stable and reliable electrical connection during the automated operation of the nursing appliance accessory, especially in cases involving rotation.

[0007] In some embodiments of the present invention, a nursing device accessory is provided, comprising: a fixing part having a first adapter plate; and a rotating part configured to be rotatable relative to the axis of the fixing part and having a second adapter plate axially opposed to the first adapter plate; wherein the first adapter plate has a floating electrical contact mechanism protruding toward the second adapter plate, and the second adapter plate has an electrical contact track on its opposing surface toward the first adapter plate, the floating electrical contact mechanism being configured to roll and / or slide along the electrical contact track during the movement of the rotating part relative to the fixing part and simultaneously axially support the rotating part. In this embodiment, through the rolling and / or sliding contact between the floating electrical contact mechanism and the electrical contact track, a continuous electrical connection between the fixing part and the rotating part during rotation is achieved, while the floating electrical contact mechanism also axially supports the rotating part, thereby achieving both rotational power supply and structural support functions.

[0008] In some embodiments, the floating electrical contact mechanism includes an electrical contact element and a floating elastic element; wherein the electrical contact element has an arc-shaped contact portion for electrical contact with the electrical contact track, and the floating elastic element is disposed below the electrical contact element, with its bottom end fixed to the first adapter plate. In this embodiment, the axial elastic force provided by the floating elastic element ensures that the electrical contact element maintains contact pressure with the electrical contact track at all times, thereby ensuring stable electrical contact during rotation.

[0009] In some embodiments, the care appliance accessory further includes a sleeve disposed around the floating elastic element. In this embodiment, the sleeve provides radial constraint on the floating elastic element to prevent lateral displacement of the floating elastic element under pressure.

[0010] In some embodiments, there are multiple electrical contact tracks, and the nursing appliance accessory includes multiple sets of floating electrical contact mechanisms, each set of floating electrical contact mechanisms having multiple floating electrical contact mechanisms, wherein each set of floating electrical contact mechanisms corresponds to one electrical contact track.

[0011] In some embodiments, the electrical contact rails are arranged concentrically in the radial direction. In this embodiment, the multiple concentrically spaced electrical contact rails can transmit multiple power and / or signals simultaneously without interference, thereby ensuring stable power supply and communication between the fixed part and the rotating part.

[0012] In some embodiments, the electrical contact track includes a power supply track configured to form a power supply connection with the first adapter plate. In some embodiments, the power supply track includes a positive power supply track and a negative power supply track. In some embodiments, the electrical contact track further includes a signal track configured to be electrically connected to the first adapter plate for transmitting electrical signals. In some embodiments, the signal track includes a signal transmitting track and a signal receiving track. In this embodiment, by further providing a signal track on top of the power supply track, both power supply and signal transmission during rotation are achieved.

[0013] In some embodiments, the fixing portion further includes a connecting portion for connecting the main unit of the care device and a plurality of electrical connectors; wherein the connecting portion includes a flange having a plurality of extending channels, the plurality of electrical connectors being electrically connected to the floating electrical contact mechanism, the plurality of electrical connectors extending through corresponding extending channels and the contacts of the plurality of electrical connectors being located at the ends of the flange. In this embodiment, the electrical connectors transmit power and signals from the main unit of the care device to the floating electrical contact mechanism through the extending channels of the connecting portion, and then transmit them to the rotating part via the electrical contact track, thereby forming a complete electrical transmission path from the main unit of the care device to the rotating part.

[0014] In some embodiments, the nursing device accessory further includes a drive motor comprising a stator and a rotor; wherein the stator is fixedly connected to the fixed portion, and the rotor is kinetically connected to the rotating portion; a central flow channel is formed in the central region of the drive motor, and both the first adapter plate and the second adapter plate have inner holes surrounding the central flow channel. In this embodiment, while the drive motor drives the rotating portion to rotate, airflow is also allowed to pass through the central flow channel, thereby simultaneously integrating the driving function and the airflow delivery function, further enriching the functionality of the nursing device accessory.

[0015] In some embodiments, the nursing appliance accessory further includes a control plate fixed to the rotating part; wherein the control plate and the second adapter plate are axially spaced apart, and a plurality of rigid connecting rods are circumferentially spaced between the control plate and the second adapter plate, at least some of the rigid connecting rods being conductive. In this embodiment, the rigid connecting rods not only achieve mechanical fixation between the control plate and the second adapter plate, but also provide power transmission and / or signal transmission.

[0016] In some embodiments of the present invention, a nursing device is also provided, including a main unit and nursing device accessories as described in any of the above embodiments, wherein the nursing device accessories are detachably connected to the main unit. In this embodiment, by constructing the nursing device accessories as modular components, they can be easily used with the main unit, facilitating not only compatibility with different main units but also ease of maintenance.

[0017] According to the embodiments of the present invention, the nursing appliance accessories and nursing appliances can maintain a stable electrical connection during the continuous rotation of the rotating part relative to the fixed part through the rolling and / or sliding cooperation between the floating electrical contact mechanism and the electrical contact track. This achieves continuous and stable power supply and / or signal transmission from the fixed part to the rotating part, improves the functional integration and operational reliability of the rotatable nursing appliance accessories, and supports the nursing appliance accessories in providing intelligent and automated hair styling functions.

[0018] Other optional features and technical effects of the embodiments of the present invention are partly described below and partly apparent from reading this document. Attached Figure Description

[0019] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The elements shown are not limited to the scale shown in the drawings, and the same or similar reference numerals in the drawings denote the same or similar elements, wherein...

[0020] Figure 1 An exemplary front view of a nursing appliance accessory according to an embodiment of the present invention is shown;

[0021] Figure 2An exemplary bottom view of a nursing appliance accessory according to an embodiment of the present invention is shown;

[0022] Figure 3 An exemplary exploded view of a nursing appliance accessory according to an embodiment of the present invention is shown;

[0023] Figure 4 An exemplary exploded view of a nursing appliance accessory according to an embodiment of the present invention is shown;

[0024] Figure 5 An exemplary cross-sectional view of a nursing appliance accessory according to an embodiment of the present invention is shown;

[0025] Figure 6 It shows Figure 5 Enlarged structural diagram of region A in the middle;

[0026] Figure 7 It shows Figure 5 An exemplary cross-sectional view along the BB line;

[0027] Figure 8 It shows Figure 5 An exemplary cross-sectional view along the CC line;

[0028] Figure 9 An exemplary cross-sectional view of a nursing appliance accessory according to an embodiment of the present invention is shown; and

[0029] Figure 10 It shows Figure 9 An exemplary cross-sectional view along the DD line.

[0030] List of reference numerals in the attached diagram:

[0031] 100. Nursing equipment and accessories

[0032] 10. Fixing part; 11. First adapter plate; 111. Floating electrical contact mechanism; 112. Electrical contact element; 113. Floating elastic element; 114. Floating electrical contact mechanism assembly; 115. Sleeve; 116. Arc-shaped contact part; 13. Connecting part; 131. Electrical connector; 132. Flange; 133. Extension channel; 134. Contact point; 135. Snap-fit ​​part; 14. Fixing housing;

[0033] 20. Rotating part; 21. Second adapter plate; 211. Electrical contact rail; 212. Positive power supply rail; 213. Negative power supply rail; 214. Signal transmitting rail; 215. Signal receiving rail; 216. Power supply rail; 217. Signal rail; 22. Bracket; 23. Control board; 231. Rigid connection structure; 232. Rigid connecting rod; 26. Rotating outer shell; 27. Connecting plate;

[0034] 40. Drive motor; 41. Stator; 42. Rotor; 421. Winding;

[0035] 50. Central flow channel;

[0036] 60. Styling Department. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. Here, the illustrative embodiments and descriptions of this invention are used to explain the invention, but are not intended to limit the invention.

[0038] This document describes several embodiments of the present invention; however, for the sake of brevity, the descriptions of the embodiments are not exhaustive, and identical or similar features or parts between the embodiments may be omitted. In this document, "one embodiment," "some embodiments," "example," "specific example," or "some examples" refers to embodiments applicable to at least one, but not all, of the present invention. The above terms do not necessarily refer to the same embodiments or examples. Without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of the different embodiments or examples.

[0039] As mentioned earlier, some known nursing care accessories already contain movable parts, such as movable splints or swingable styling heads. These movable parts typically require power to achieve functions such as heating and driving. In known solutions, power and signals are usually transmitted between the fixed and movable parts of the nursing care accessory via wiring harnesses or similar means.

[0040] However, this invention notes that, given the increasing miniaturization and functional complexity of nursing care accessories, known power supply solutions face numerous limitations. Specifically, the wire harness has a limited length and is not resistant to repeated bending and twisting. Therefore, known solutions can only meet scenarios where the moving parts require only small-amplitude movements, but cannot support large-angle movements, especially rotational movements. For example, in automated hair styling scenarios, the styling part of the nursing care accessory needs to rotate 180° or even 360° relative to the fixed part to curl the user's hair. In this scenario, the wire harness used to connect the fixed and rotating parts in known solutions not only needs to be long enough to accommodate the rotational stroke, but will also be under stress from tension, bending, and even torsion for extended periods. This can easily lead to conductor fatigue fracture and failures such as solder joint detachment. Furthermore, in practical scenarios where nursing care accessories are trending towards miniaturization, if a conventional wire harness solution is used, a margin for wire harness movement needs to be reserved, i.e., a large cavity space needs to be reserved between the fixed and rotating parts for wire harness movement, which contradicts the miniaturization requirements of nursing care accessories. Furthermore, in some scenarios, the power supply mechanism can optionally transmit control signals between the fixed part and the rotating part. If a wire harness power supply scheme is adopted, the contact resistance of the wire harness may fluctuate when it is bent and twisted, which will adversely affect the transmission of signals.

[0041] In response, embodiments of the present invention provide a nursing device accessory and a nursing device, which maintains a stable electrical connection when the rotating part rotates continuously relative to the fixed part through a floating electrical contact mechanism, thereby enabling a stable power supply connection and / or communication connection during the automated molding process of the nursing device accessory.

[0042] The following will combine Figures 1 to 10 The following describes in detail the nursing appliance accessories according to embodiments of the present invention.

[0043] In some embodiments, reference Figure 1 The nursing appliance accessory 100 may include a fixing part 10 and a rotating part 20.

[0044] In some embodiments, the rotating portion 20 is configured to be rotatable relative to the fixed portion 10. In some embodiments, reference is made to... Figure 1 The rotating part 20 is configured to rotate about the axis of the fixed part 10. In this embodiment, it is understood that the fixing and rotation are used to characterize the relative motion state. By way of explanation and not limitation, during the use of the nursing appliance accessory, the fixed part 10 is fixed relative to the user's hand holding the nursing appliance, for example, while the rotating part 20 rotates relative to the user's hand and the fixed part 10.

[0045] In some embodiments, the end of the rotating part 20 away from the fixing part 10 may be connected to the styling part 60. In this embodiment, the rotating part 20 can drive the styling part 60 to rotate together around the axis of the fixing part 10, thereby facilitating the styling part 60 to perform styling actions on the user's hair, including but not limited to clamping, curling, and straightening, or combinations of the above styling actions. In this embodiment, the styling part 60 may be, for example, but not limited to, a clamping component, a curling component, or a straightening component, etc., and the present invention does not limit this.

[0046] In some embodiments, reference Figure 1 and Figure 2 The fixing part 10 may include a fixing housing 14 and a connecting part 13. In this embodiment, the fixing part 10 may be detachably connected to the handle or main unit of the care device, for example, by means of the connecting part 13, so as to receive one or more of cold / hot airflow, power and communication signals from the handle or main unit of the care device, which will be described in detail below.

[0047] In some embodiments, the connecting portion 13 is disposed at the end of the fixing portion 10 away from the rotating portion 20 and is configured for detachable connection with the main body of the care device. In some embodiments, the connecting portion 13 includes a flange 132 that extends outward along the end of the fixing portion 10.

[0048] In some embodiments, continue to refer to Figure 2 The flange 132 of the connecting portion 13 is provided with a plurality of contacts 134. In this embodiment, the plurality of contacts 134 are located at the end of the flange 132 away from the rotating portion 20. In some embodiments, the plurality of contacts 134 are configured to make electrical contact with corresponding contacts on the handle or main unit of the nursing device. For explanation, the contacts 134 enable the establishment of an electrical connection, particularly one that can be flexibly switched on / off, between the nursing device accessory 100 and the main unit of the nursing device. The specific construction of the contacts 134 will be described in detail below.

[0049] In some embodiments, continue to refer to Figure 1 and Figure 2 The rotating part 20 may include a rotating housing 26. In this embodiment, the rotating housing 26 is constructed in a cylindrical shape. However, it is conceivable that the rotating housing 26 may be constructed in other suitable shapes without affecting the implementation of the rotation function, and the present invention is not limited thereto.

[0050] In some embodiments, the rotating part 20 further includes a connecting plate 27. In this embodiment, the connecting plate 27 is disposed at the end of the rotating housing 26 away from the fixed part 10 and is configured to connect the rotating part 20 and the shaping part 60.

[0051] In some embodiments, reference Figures 3 to 5The nursing appliance accessory 100 may also include a drive motor 40. In this embodiment, the drive motor 40 is configured to drive the rotating part 20 to rotate relative to the fixed part 10. In some embodiments, reference is made to... Figures 3 to 5 The drive motor 40 is disposed in the internal space defined by the fixed part 10 and the rotating part 20.

[0052] In some embodiments, continue to refer to Figures 3 to 5 The drive motor 40 is constructed as a frameless motor. In some embodiments, the drive motor 40 may include a stator 41 and a rotor 42. In this embodiment, the stator 41 is fixedly connected to the fixed part 10, and the rotor 42 is drivenly connected to the rotating part 20, such that the rotating part 20 rotates with the rotor 42.

[0053] In some embodiments, continue to refer to Figures 3 to 5 The central region of the drive motor 40 at least partially forms a cavity, and further forms a central flow channel 50. In this embodiment, the central flow channel 50 extends axially along the care appliance accessory 100. By way of explanation and not limitation, the central flow channel 50 allows airflow to flow in from the fixing part 10 side, then through the central region of the drive motor 40 and finally to the rotating part 20 side, so that the drive motor 40 does not obstruct the airflow path while driving the rotating part 20 to rotate. Thus, heated or cooled airflow from the main body of the care appliance can be delivered to the styling part 60 via the central flow channel 50 for hot air styling or cold air setting of the hair.

[0054] In some embodiments, continue to refer to Figures 3 to 5 The fixing part 10 may have a first adapter plate 11, and the rotating part 20 may have a second adapter plate 21. In this embodiment, the first adapter plate 11 and the second adapter plate 21 are axially opposed to each other, that is, the first adapter plate 11 and the second adapter plate 21 face each other in the axial direction of the nursing device accessory 100.

[0055] In some embodiments, both the first adapter plate 11 and the second adapter plate 21 are generally annular. In some embodiments, both the first adapter plate 11 and the second adapter plate 21 have an inner hole surrounding the central flow channel 50. In this embodiment, in other words, the first adapter plate 11 and the second adapter plate 21 are configured as complete annular adapter plates surrounding the central flow channel 50. However, it is understood that in other embodiments, the first adapter plate 11 and / or the second adapter plate 21 may be configured as non-complete annular adapter plates, which falls within the scope of protection of this invention.

[0056] In some embodiments, continue to refer to Figures 3 to 5The first adapter plate 11 has a floating electrical contact mechanism 111 protruding toward the second adapter plate 21. In this embodiment, the second adapter plate 21 has an electrical contact track 211 on its opposing surface toward the first adapter plate 11. In some embodiments, the electrical contact track 211 may be made of a material with good electrical conductivity. In some embodiments, the electrical contact track 211 may be formed of copper or a copper alloy by etching, printing, or deposition.

[0057] In some embodiments, the floating electrical contact mechanism 111 is configured to roll and / or slide along the electrical contact track 211 during the rotation of the rotating part 20 relative to the fixed part 10, thereby maintaining the electrical connection between the fixed part 10 and the rotating part 20 during rotational motion.

[0058] In some embodiments, the floating electrical contact mechanism 111 may be configured as a spring-loaded pin conductive element. In some embodiments, in conjunction with reference to... Figure 5 and Figure 6 The floating electrical contact mechanism 111 may include an electrical contact 112 and a floating elastic element 113.

[0059] In some embodiments, continue to refer to Figure 6 The electrical contact 112 may have an arcuate contact portion 116 for electrical contact with the electrical contact track 211. In this embodiment, the arcuate contact portion 116 is configured to roll and / or slide along the electrical contact track 211 when the rotating portion 20 rotates relative to the fixed portion 10.

[0060] In some embodiments, the floating elastic member 113 is disposed below the electrical contact member 112. In some embodiments, the bottom end of the floating elastic member 113 may be connected to the first adapter plate 11, and the top end of the floating elastic member 113 is connected to or abuts against the electrical contact member 112.

[0061] In some embodiments, the electrical contact 112 may include a conductive body movably disposed along its floating direction, wherein one end of the conductive body facing the electrical contact track 211 forms an arc-shaped contact portion 116. In this embodiment, the conductive body may be configured as a columnar member, a pin-shaped member, or a cylindrical member, with a convex arc surface formed at its top. In this embodiment, when the rotating part 20 rotates relative to the fixed part 10, the arc-shaped contact portion 116 can roll and / or slide along the electrical contact track 211.

[0062] In an alternative embodiment, the electrical contact 112 may be configured as a ball-type conductive element. In this embodiment, the electrical contact 112 may be configured as a conductive ball, at least partially exposed outside the mounting cavity and in contact with the electrical contact track 211, and the floating elastic element 113 is used to push the conductive ball toward the electrical contact track 211 to maintain pressure. In this embodiment, the conductive ball can generate rolling contact with the electrical contact track 211 during rotation, and may be accompanied by a small amount of sliding, thereby helping to reduce frictional resistance, reduce contact wear, and improve rotational smoothness.

[0063] In some embodiments, continue to refer to Figure 6 The floating elastic element 113 is, for example, a spring. As an explanation, the floating elastic element 113 generates an elastic restoring force in the axial direction, which pushes the electrical contact 112 towards the second adapter plate 21, ensuring that the arc-shaped contact portion 116 of the electrical contact 112 maintains contact pressure with the electrical contact track 211. Therefore, even if a slight change occurs in the axial distance between the first adapter plate 11 and the second adapter plate 21 during rotation due to component tolerances or vibration, the floating elastic element 113 can compensate for this change through its own elastic deformation, thereby ensuring a stable and reliable electrical contact between the electrical contact 112 and the electrical contact track 211.

[0064] In some embodiments, the axial height adjustment range of the floating electrical contact mechanism 111 is within the range of 0 to 0.5 mm. However, it is understood that in other embodiments, the axial height adjustment range of the floating electrical contact mechanism 111 can also be reasonably adjusted according to the specific structural requirements of the nursing appliance accessory, which falls within the protection scope of this invention.

[0065] In some embodiments, continue to refer to Figure 6 The nursing appliance accessory 100 may also include a sleeve 115. In this embodiment, the sleeve 115 is connected to the first adapter plate 11 for power supply and / or signal connection, for example, by welding. In some embodiments, the sleeve 115 is disposed around the floating elastic member 113. In some embodiments, the sleeve 115 is fixed to the first adapter plate 11 and coaxially disposed with the floating elastic member 113. In this embodiment, the floating elastic member 113 and the electrical contact 112 are electrically connected to the first adapter plate 11 via the sleeve 115. By way of explanation and not limitation, the sleeve 115 provides radial constraint to the floating elastic member 113, preventing the floating elastic member 113 from lateral displacement or buckling when subjected to axial compression, thereby ensuring that the floating elastic member 113 stretches and contracts stably in the axial direction and accurately transmits elastic force to the electrical contact 112.

[0066] In some embodiments, continue to refer to Figure 5 and 6The floating electrical contact mechanism 111 is also configured to axially support the rotating part. By way of explanation and not limitation, the elastic force generated by the floating elastic element 113 is transmitted to the second adapter plate 21 via the electrical contact 112, thereby providing axial support for the rotating part 20. In other words, the floating electrical contact mechanism 111 not only transmits power and / or signals as an electrical connection element, but also simultaneously acts as an elastic support element to axially support the weight of the rotating part 20. Therefore, the nursing appliance accessory 100 does not require a dedicated, separate axial support component, thus reducing the overall number of parts and assembly steps and simplifying the structure of the nursing appliance accessory 100.

[0067] In some embodiments, reference Figures 5 to 7 The first adapter plate 11 is roughly ring-shaped, and multiple floating electrical contact mechanisms 111 are provided on the first adapter plate 11.

[0068] In some embodiments, continue to refer to Figure 7 Multiple floating electrical contact mechanisms 111 are divided into multiple groups of floating electrical contact mechanism groups 114.

[0069] In some embodiments, each group of floating electrical contact mechanisms 114 has multiple floating electrical contact mechanisms 111. In some embodiments, the multiple groups of floating electrical contact mechanisms 114 are arranged radially spaced, that is, different groups of floating electrical contact mechanisms 114 are located at different radial positions. For explanation, multiple floating electrical contact mechanisms 111 in the same group of floating electrical contact mechanisms 114 are approximately located at the same radial position, that is, the radial distance from each floating electrical contact mechanism 111 in the same group to the center of the first adapter plate 11 is approximately equal. Figure 7 In the illustrated embodiment, a set of floating electrical contact mechanism groups 114 is schematically shown in dashed lines.

[0070] In some embodiments, reference Figures 5 to 8 The second adapter plate 21 is roughly ring-shaped, and the second adapter plate 21 has multiple electrical contact tracks 211 on the opposite surface facing the first adapter plate 11.

[0071] In some embodiments, continue to refer to Figure 8 Each electrical contact track 211 is arranged concentrically at intervals in the radial direction. For explanation, the multiple electrical contact tracks 211 are arranged in a concentric ring, and adjacent electrical contact tracks 211 are kept at a radial distance to avoid electrical interference between them.

[0072] In some embodiments, continue to refer to Figure 8The electrical contact track 211 may include a power supply track 216 and a signal track 217. In this embodiment, the power supply track 216 is configured to form a power supply connection with the first adapter plate 11, and the signal track 217 is configured to be electrically connected to the first adapter plate 11 for transmitting electrical signals, such as control signals. By way of explanation and not limitation, by integrating the power supply track 216 and the signal track 217 onto the opposing surface of the same second adapter plate 21, stable transmission of power and signals during rotation is achieved.

[0073] In some embodiments, each group of floating electrical contact mechanisms 114 corresponds to one electrical contact track 211, and each floating electrical contact mechanism 111 in the same group rolls and / or slides along the same electrical contact track 211 during rotation. As an explanation, and not a limitation, based on the concentrically spaced electrical contact tracks 211 in the radial direction, the corresponding floating electrical contact mechanism groups 114 are also arranged at radial intervals, thereby forming a one-to-one independent electrical connection channel between each group of floating electrical contact mechanisms 114 and each electrical contact track 211. Thus, multiple groups of floating electrical contact mechanisms 114 can simultaneously form multiple independent electrical connection channels with multiple electrical contact tracks 211, satisfying the parallel transmission requirements of multiple power and signal paths in the rotating part 20. Meanwhile, each group of floating electrical contact mechanisms 114 contains multiple floating electrical contact mechanisms 111 that share the same electrical contact track 211. This ensures that even if an individual floating electrical contact mechanism 111 momentarily loses contact due to wear or vibration, the remaining floating electrical contact mechanisms 111 in the same group can still maintain electrical connection with the electrical contact track 211, thereby improving the redundancy and reliability of each electrical connection channel.

[0074] In the above embodiments of the present invention, by using a floating electrical contact mechanism and at least a partially annular electrical contact track, the electrical contact / connection can be maintained uninterruptedly throughout the entire process of the rotating part 20 rotating continuously relative to the fixed part 10. Specifically, the electrical contact track 211 extends circumferentially along the second adapter plate 21, and the floating electrical contact mechanism 111 moves continuously along the circumferential path of the electrical contact track 211 when the rotating part 20 rotates. Therefore, no matter what angle the rotating part 20 rotates to, the floating electrical contact mechanism 111 always maintains contact with the electrical contact track 211, thereby achieving uninterrupted electrical connection within the entire angle range. This allows the rotating part 20 to rotate continuously for 360° or even multiple revolutions relative to the fixed part 10 without losing the electrical connection.

[0075] In some embodiments, continue to refer to Figure 8 The electrical contact track 211 may include a power supply track 216. In this embodiment, the power supply track 216 is configured to form a power supply connection with the first adapter plate 11 to transmit power to the rotating part 20 during rotation.

[0076] In some embodiments, the power supply track 216 may include a positive power supply track 212 and a negative power supply track 213. In this embodiment, the positive power supply track 212 and the negative power supply track 213 are arranged concentrically in the radial direction. For explanation, maintaining sufficient radial spacing between the positive power supply track 212 and the negative power supply track 213 can prevent short circuits.

[0077] In some embodiments, the floating electrical contact mechanism group 114 includes a positive floating electrical contact mechanism group corresponding to the positive power supply track 212 and a negative floating electrical contact mechanism group corresponding to the negative power supply track 213. For explanation, the positive power supply track 212 and the negative power supply track 213 respectively serve as the positive and negative poles in power transmission, thereby enabling power transmission across the rotation interface between the fixed part 10 and the rotating part 20 via the power supply track 216.

[0078] In some embodiments, in the case of only providing the power supply rail 216, optional signal communication between the fixed part 10 and the rotating part 20 can be achieved in other ways, such as the rotating part 20 activating its internal wireless communication element (e.g., Bluetooth module or infrared module) after being powered, thereby establishing wireless signal communication with the fixed part 10 or the main unit of the care appliance.

[0079] In some embodiments, continue to refer to Figure 8 In addition to the aforementioned power supply track 216, the electrical contact track 211 may further include a signal track 217. In this embodiment, the signal track 217 is configured to be electrically connected to the first adapter plate 11 for transmitting electrical signals, such as control signals. By way of explanation and not limitation, by further adding the signal track 217 to the second adapter plate 21, not only can power be transmitted between the fixed part 10 and the rotating part 20, but electrical signals can also be directly transmitted through the electrical contact track 211, enabling signal communication between the fixed part 10 and the rotating part 20 without the need for a wireless communication module. This reduces reliance on wireless communication components and simplifies the configuration of electronic components inside the rotating part 20; furthermore, wired signal transmission has lower latency and higher anti-interference capability compared to wireless communication, which is beneficial for improving the real-time performance and reliability of signal transmission.

[0080] In some embodiments, the signal track 217 may include a signal transmitting track 214 and a signal receiving track 215. In this embodiment, the signal transmitting track 214 and the signal receiving track 215 are arranged concentrically at intervals in the radial direction. In some embodiments, correspondingly, the floating electrical contact mechanism group 114 also includes a signal transmitting floating electrical contact mechanism group corresponding to the signal transmitting track 214 and a signal receiving floating electrical contact mechanism group corresponding to the signal receiving track 215. In some embodiments, the signals transmitted through the signal transmitting track 214 and the signal receiving track 215 include, for example, control commands, sensor data, or status feedback signals, and the present invention does not limit the specific type of signal. By way of explanation and not limitation, the signal transmitting track 214 and the signal receiving track 215 realize bidirectional signal communication between the fixed part 10 and the rotating part 20.

[0081] As previously described, the first adapter plate 11 and / or the second adapter plate 21 may be configured as non-completely annular adapter plates. Accordingly, in an alternative embodiment, the first adapter plate 11 may be configured as a plurality of annular segments spaced apart circumferentially. In some embodiments, the first adapter plate 11 includes two annular segments spaced apart circumferentially from each other. In this embodiment, one annular segment is provided with a positive floating electrical contact mechanism corresponding to the positive power supply track 212, and the other annular segment is provided with a negative floating electrical contact mechanism corresponding to the negative power supply track 213. In this embodiment, the second adapter plate 21 is still configured as having a complete annular electrical contact track 211. As an explanation, and not a limitation, since the first adapter plate 11 is a fixed component, the floating electrical contact mechanism 111 on it is always in a fixed angular position; while the electrical contact track 211 on the second adapter plate 21 is a complete ring extending circumferentially. Therefore, no matter what angular position the rotating part 20 rotates to, the electrical contact track 211 always passes through the position of the floating electrical contact mechanism 111, thus still achieving a continuous 360° or even multiple rotations of electrical connection. Thus, the circumferential gap space between the two annular segments on the first adapter plate 11 can be used to arrange other components or structures (such as wiring channels or positioning structures), improving the space utilization rate inside the nursing appliance accessory 100.

[0082] In a further alternative embodiment, the electrical contact track 211 on the second adapter plate 21 may also be configured as an arc-shaped segment extending circumferentially. As an explanation, and not a limitation, in some shaping operations, the rotation angle of the rotating part 20 relative to the fixed part 10 may be less than 360°, for example, a swing-type shaping operation less than 180°. In this case, the arc-shaped segment of the electrical contact track 211 only needs to cover the actual rotation angle range of the rotating part 20, that is, the circumferential arc length of the arc-shaped segment is at least equal to the arc length corresponding to the rotation angle range, to ensure that the floating electrical contact mechanism 111 remains in contact with the electrical contact track 211 throughout the entire rotation stroke of the rotating part 20. Thus, the electrical contact track 211 does not need to occupy the entire circumference of the second adapter plate 21, and the area on the second adapter plate 21 where the electrical contact track 211 is not located can be used to arrange other functional components, thereby further improving the structural compactness and design flexibility of the nursing appliance accessory 100.

[0083] In some embodiments, reference Figures 5 to 8 The rotating part 20 may further include a bracket 22. In this embodiment, the bracket 22 is fixed to the rotating part 20. In some embodiments, the bracket 22 is at least partially located in the fixed part 10, and the rotor 42 is mounted on the outside of the bracket 22. In some embodiments, the rotor 42 includes a winding 421 mounted on the outer peripheral surface of the bracket 22. By way of explanation and not limitation, the bracket 22 provides a mounting base for the rotor 42, such that the rotor 42 can be stably fixed in the rotating part 20 and rotate with the rotating part 20.

[0084] In some embodiments, continue to refer to Figures 5 to 8 The rotating part 20 may also include a control board 23. In this embodiment, the control board 23 is disposed in the rotating part 20. In some embodiments, the control board 23 is, for example, a printed circuit board, which is electrically connected to the second adapter board 21 to receive power and signals from the second adapter board 21 and is used to control the operation of the drive motor 40 and other electronic components in the rotating part 20.

[0085] In some embodiments, continue to refer to Figures 5 to 8 The control board 23 is mounted on the end of the bracket 22 away from the first adapter plate 11. By way of explanation and not limitation, the control board 23 rotates together with the bracket 22, and the control board 23 is fixed relative to the rotor 42, the shaping part 60, etc., thereby facilitating the establishment of a stable electrical connection with the rotor 42 and other electronic components in the shaping part 60.

[0086] In some embodiments, reference Figure 9The control plate 23 and the second adapter plate 21 are spaced apart axially. In this embodiment, a rigid connection structure 231 is formed between the control plate 23 and the second adapter plate 21. In this embodiment, the rigid connection structure 231 may include a plurality of rigid connecting rods 232. In this embodiment, the plurality of rigid connecting rods 232 may be spaced apart circumferentially. By illustratively and not limitingly, by arranging the plurality of rigid connecting rods 232 circumferentially, the control plate 23 and the second adapter plate 21 are subjected to uniform force in the circumferential direction, ensuring the stability of the connection.

[0087] In some embodiments, at least a portion of the rigid connecting rod 232 is conductive, i.e., configured as an electrically connectable rigid connecting rod. In some embodiments, the conductive rigid connecting rod 232 is made of a conductive material or at least partially made of a conductive material. By way of explanation and not limitation, a mechanical and electrical connection is simultaneously established between the control plate 23 and the second adapter plate 21. In other words, the conductive rigid connecting rod 232 not only rigidly fixes the control plate 23 and the second adapter plate 21 together axially, but also serves as an electrical transmission path to transmit the power and / or signals received by the second adapter plate 21 to the control plate 23. This not only simplifies the wiring inside the rotating part 20, but also enhances the structural strength of the connection between the control plate 23 and the second adapter plate 21.

[0088] In some embodiments, reference Figure 9 and Figure 10 The rotor 42's winding 421 is circumferentially disposed on the outside of the bracket 22. In this embodiment, the winding 421 has multiple winding units in the circumferential direction, with circumferential gaps formed between adjacent winding units. In some embodiments, a rigid connecting rod 232 extends axially and passes through the circumferential gaps between adjacent winding units of the winding 421. By way of explanation and not limitation, the multiple rigid connecting rods 232 and the multiple windings 421 are arranged alternately in the circumferential direction, with each rigid connecting rod 232 passing through a circumferential gap. Thus, the rigid connecting rod 232 achieves axial spacing fixation and connection between the control plate 23 and the second adapter plate 21 by utilizing the existing gap space between the windings 421 without spatial interference with the windings 421. This layout eliminates the need for the rigid connecting rod 232 to occupy additional radial space, helping to keep the nursing appliance accessory 100 compact and miniaturized in the radial direction.

[0089] In some embodiments, continue to refer to Figure 9The bottom ends of the second adapter plate 21 and the bracket 22 are spaced apart axially. By way of explanation and not limitation, since the second adapter plate 21 carries the electrical contact rail 211 (on which power supply and / or communication signals are transmitted), and the winding 421 generates an alternating electromagnetic field and heats up during operation, the axial spacing helps to reduce the electromagnetic interference and heat conduction effects of the winding 421 on the electrical contact rail 211, thereby helping to maintain the stability of power transmission and signal transmission on the electrical contact rail 211.

[0090] In some embodiments, continue to refer to Figure 9 When the nursing appliance accessory 100 is in operation, the second adapter plate 21, the bracket 22, the winding 421 mounted on the outside of the bracket 22, and the control plate 23 rotate together as components of the rotating part 20. Explained but not limited to, when the rotor 42 is energized, it generates a rotating magnetic field. Under the influence of this magnetic field, the winding 421 generates a rotational torque, causing the bracket 22 to rotate. The bracket 22, in turn, causes the control plate 23 fixed thereon and the second adapter plate 21, which is rigidly connected to the control plate 23 via a rigid connecting rod 232, to rotate together. In other words, the second adapter plate 21, the winding 421, the bracket 22, and the control plate 23 constitute a rotating assembly that rotates integrally with the rotor 42.

[0091] As mentioned before, continue to refer to Figure 9 The connecting portion 13 may include a flange 132, which extends outwardly along the end of the fixing portion 10. In this embodiment, reference... Figure 9 The flange 132 may have a plurality of extension channels 133, each of which extends from the lower end face of the connecting portion 13 away from the rotating portion 20 to its upper end face facing the first adapter plate 11.

[0092] In some embodiments, reference Figure 9 The fixing part 10 may further include a plurality of electrical connectors 131. In this embodiment, the plurality of electrical connectors 131 are electrically connected to the floating electrical contact mechanism 111. In some embodiments, the plurality of electrical connectors 131 are electrically connected to the first adapter plate 11 by means of, but not limited to, welding, and then electrically connected to the floating electrical contact mechanism 111. However, it is understood that in other embodiments, some of the electrical connectors 131 may also be directly electrically connected to the floating electrical contact mechanism 111, which falls within the protection scope of this invention.

[0093] In some embodiments, reference Figure 9 The plurality of electrical connections 131 may include a positive connection and a negative connection (GND) for power supply. In an alternative embodiment, the plurality of electrical connections 131 may further include a signal receiving connection (RX) and a signal transmitting connection (TX) for signal interaction.

[0094] In some embodiments, reference Figure 9 The plurality of electrical connectors 131 extend through corresponding extension channels 133, and the contacts 134 of the plurality of electrical connectors 131 are located at the ends of the flange 132. Specifically, the contacts 134 of the plurality of electrical connectors 131 are formed at the ends of the flange 132 away from the rotating part 20.

[0095] In some embodiments, return to reference Figures 1 to 4 The connecting portion 13 may further include a snap-fit ​​portion 135. In this embodiment, the snap-fit ​​portion 135 is disposed on the outer side of the flange 132 and is configured to cooperate with a corresponding snap-fit ​​structure of the nursing device main unit to detachably fix the nursing device accessory 100 to the nursing device main unit. In some embodiments, the snap-fit ​​portion 135 is configured as a slot, and one end of the nursing device main unit is provided with a corresponding buckle. However, it is understood that in other embodiments, other suitable snap-fit ​​structures may be used, and the present invention does not limit the specific structural form of the snap-fit ​​portion.

[0096] In some embodiments, the snap-fit ​​portion 135 is configured such that, while the nursing device accessory 100 snaps into the nursing device main unit, the aforementioned contact 134 forms electrical contact with the corresponding contact on the nursing device main unit. By way of explanation and not limitation, in known solutions, the mechanical and electrical connections between the nursing device accessory and the main unit are typically achieved by separate structures, such as mechanical fixation via bayonet or thread, and electrical connection via additional connectors or springs. This separate design increases the connection steps and may result in a situation where the mechanical connection is in place but the electrical connection has not yet been established. The embodiments of the present invention, through the engagement of the snap-fit ​​portion 135 and the contact 134, allow the user to simultaneously complete both mechanical fixation and electrical connection establishment in a single operation of snapping the nursing device accessory 100 into the nursing device main unit. In other words, when the snap-fit ​​structure of the snap-fit ​​portion 135 and the nursing device main unit reaches the snap-fit ​​position, the contact 134 simultaneously abuts against the corresponding contact on the nursing device main unit and forms an electrical connection. This not only achieves a flexible on / off electrical connection but also simplifies the operation steps and improves user convenience.

[0097] In some embodiments, the latching portion 135 is also configured to provide contact pressure to the contact 134 in the latched state. By way of explanation and not limitation, the axial and / or radial restraining force generated when the latching portion 135 engages with the latching structure of the nursing device main unit enables the contact 134 to maintain a stable abutment relationship with the corresponding contact on the nursing device main unit, thereby maintaining a reliable electrical connection during the use of the nursing device and preventing it from easily disengaging even under vibration or external force.

[0098] In the above embodiments of the present invention, a complete electrical transmission path is formed from the nursing device handle / main unit to the control board 23 inside the rotating part 20 via the electrical connector 131, the first adapter plate 11, the floating electrical contact mechanism 111, the second adapter plate 21, and the rigid connection mechanism 231: the nursing device handle / main unit transmits power and signals to the electrical connector 131 through the contact 134; the electrical connector 131 transmits power and / or signals to the first adapter plate 11 via the extension channel 133, and then to the floating electrical contact mechanism 111; the floating electrical contact mechanism 111 rolls and / or slides along the electrical contact track 211 during rotation to transmit power and / or signals to the second adapter plate 21; and the second adapter plate 21 then transmits power and / or signals to the control board 23 via the rigid connection rod 232. Thus, power and signal transmission across the rotation interface is achieved between the nursing device handle / main unit on the stationary side and the control board 23 on the rotating side.

[0099] In some embodiments of the present invention, a nursing device is also provided, which may include a main unit and a nursing device accessory 100 according to any of the above embodiments of the present invention. In this embodiment, the nursing device accessory 100 is detachably connected to the main unit. By way of explanation and not limitation, by constructing the nursing device accessory 100 as a modular component that can be detachably connected to the main unit, users can replace different types of nursing device accessories 100 according to different design requirements, thereby improving the applicability and flexibility of the nursing device. At the same time, the modular design also facilitates the maintenance and replacement of the nursing device accessory 100.

[0100] In some embodiments, the main unit is configured as a handheld device that can be held by a user. In this embodiment, the main unit may include a handle body and a fan assembly disposed within the handle body. In some embodiments, the main unit may also include a heating element disposed within the handle body and configured to heat airflow flowing through the main unit. In some embodiments, the fan assembly is configured to generate airflow and deliver the airflow to the care appliance accessory 100. In some embodiments, a main channel is defined within the main unit, which communicates with a central flow channel 50 of the care appliance accessory 100, thereby allowing airflow to be delivered from the main unit via the central flow channel 50 to the shaping portion 60 of the care appliance accessory 100.

[0101] In some embodiments, the main unit may further include a power supply module and a control module. In this embodiment, the power supply module is configured to provide power to the drive motor 40, control board 23, and shaping part 60 of the nursing device accessory 100. In some embodiments, the control module is configured to control the operating state of the fan assembly, heating element, and nursing device accessory 100. In some embodiments, the housing of the main unit may be provided with operation buttons or a touch interface, allowing users to control various functions of the nursing device through the operation buttons or touch interface.

[0102] In some embodiments, the main unit may include a main unit connection end that mates with the connection portion 13. In this embodiment, the main unit connection end is configured to detachably mate with the connection portion 13 of the care appliance accessory 100. Specifically, the main unit connection end may have a snap-fit ​​structure that mates with the snap-fit ​​portion 135 of the connection portion 13 to enable quick connection and disconnection of the care appliance accessory 100 from the main unit. In some embodiments, the main unit connection end is further provided with main unit contacts that mate with the contacts 134 of the connection portion 13. When the care appliance accessory 100 is snap-fitted into place with the main unit, the contacts 134 and the main unit contacts form electrical contact, thereby establishing an electrical connection between the care appliance accessory 100 and the main unit.

[0103] In some embodiments, the host unit may include a sensor assembly. In this embodiment, the sensor assembly may include a position sensor and / or a temperature sensor. In some embodiments, the position sensor is configured to identify the operating position or posture of the care device relative to the user, and the control module can control the rotation direction of the drive motor 40 based on the detection results of the position sensor, thereby achieving automatic switching between left and right curling directions. In some embodiments, the temperature sensor is configured to monitor the airflow temperature or the temperature of the heating element, and the control module adjusts the heating power of the heating element based on the detection results of the temperature sensor, thereby achieving temperature control.

[0104] The following will further describe the working process of the nursing device and nursing device accessory 100 according to embodiments of the present invention in conjunction with a specific application scenario.

[0105] In this embodiment, the styling part 60 is configured as a hair curling clamp assembly, which includes an openable clamp plate and a hair clamping driver for driving the clamp plate to open and close. The care appliance accessory 100 is snapped onto the care appliance main unit via the connecting part 13. The snap-fit ​​part 135 cooperates with the snap-fit ​​structure of the care appliance main unit to fix the care appliance accessory 100. At the same time, the contact 134 makes electrical contact with the corresponding contact on the care appliance main unit, thereby the care appliance main unit transmits power and control signals to the care appliance accessory 100.

[0106] In this embodiment, power and control signals are transmitted from contact 134 to control board 23 via the aforementioned electrical transmission path. Specifically, the power and control signals sequentially pass through electrical connector 131, first adapter plate 11, floating electrical contact mechanism 111, electrical contact track 211, second adapter plate 21, and rigid connecting rod 232 to reach control board 23. Control board 23 is equipped with a microcontroller unit (MCU), which receives control signals from the nursing device host and controls the operation of drive motor 40 and hair clip driver accordingly.

[0107] First, the user holds the hair care device's main unit and brings the styling head 60 close to the hair to be styled. The user issues a curling command by operating the buttons on the main unit, which includes curling direction information. In this embodiment, the buttons include direction control buttons, which the user operates to select whether to curl to the left or to the right.

[0108] Subsequently, the MCU on the control board 23 receives a control signal containing information about the curling direction. The MCU then controls the hair clamp driver to operate according to the control signal, and the hair clamp driver drives the clamp plate of the styling section 60 to close to clamp the user's hair.

[0109] After the clamping action is completed, the MCU controls the drive motor 40 to rotate in the corresponding rotation direction according to the curling direction information. Specifically, when the user selects to curl to the left, the MCU controls the drive motor 40 to rotate 360° clockwise in the first rotation direction; when the user selects to curl to the right, the MCU controls the drive motor 40 to rotate 360° counterclockwise in the second rotation direction opposite to the first rotation direction. The rotor 42 of the drive motor 40 drives the rotating part 20 and the styling part 60 to rotate, and the hair clamped between the plates of the styling part 60 is curled together with the styling part 60 to form a curly hairstyle. During this rotation, the floating electrical contact mechanism 111 continuously rolls and / or slides along the electrical contact track 211 to maintain a stable electrical connection between the fixing part 10 and the rotating part 20, so that the drive motor 40 and the hair clamping driver can receive uninterrupted power supply and control signals.

[0110] In some embodiments, during the curling process, heated airflow from the main unit of the care device is delivered to the styling section 60 via the central channel 50 to heat and shape the hair in the curling.

[0111] Once the curling is complete, the MCU controls the drive motor 40 to stop rotating. Then, the MCU controls the hair clamp driver to work in reverse to open the clamp and release the hair. The user can then remove the styling unit 60 from the hair, thus completing one curling cycle.

[0112] In some embodiments, the user can continuously perform multiple curling cycles. For example, the user first completes multiple leftward curling cycles on the left side of the hair, then switches the curling direction using the direction control button, and then completes multiple rightward curling cycles on the right side of the hair, thereby achieving a symmetrical curling style on both sides. As an explanation and not a limitation, throughout the entire process described above, the rotating part 20 performs multiple, multi-directional 360° rotational movements relative to the fixed part 10, while the floating electrical contact mechanism 111 and the electrical contact track 211 maintain a stable electrical connection at all times, ensuring the continuity and reliability of power transmission and signal transmission throughout the styling process.

[0113] The nursing appliance accessories and nursing appliances of the present invention, by means of the rolling and / or sliding cooperation between the floating electrical contact mechanism and the electrical contact track, can maintain stable power transmission and / or signal transmission during the continuous rotation of the rotating part relative to the fixed part, thus ensuring the stability of the electrical connection, especially during large-amplitude rotational movements.

[0114] In some embodiments of the present invention, the axial elastic force provided by the floating elastic element not only maintains reliable contact with the electrical contact track, but also axially supports the rotating part, realizing the organic integration of electrical connection function and structural support function, and simplifying the overall structural design.

[0115] In some embodiments of the present invention, multiple concentrically spaced electrical contact tracks are set on the second adapter plate and the power supply track and signal track are distinguished, thereby realizing the parallel transmission of multiple power and signal on the same rotary interface.

[0116] In some embodiments of the present invention, the mechanical fixing and electrical transmission of the axial spacing between the control board and the second adapter plate are simultaneously achieved by a rigid connecting rod, and the circumferential gap between the windings is used to pass through, which simplifies the wiring and assembly inside the rotating part, thereby improving the compactness and operational reliability of the nursing appliance accessories.

[0117] In the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0118] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0119] The exemplary apparatus of the present invention has been specifically shown and described with reference to the above embodiments, which are merely examples of the best mode for carrying out the invention. Those skilled in the art will understand that various changes can be made to the embodiments of the apparatus described herein when carrying out the embodiments of the present invention without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A nursing appliance accessory, characterized in that, include: The fixing part has a first adapter plate; The rotating part is configured to be rotatable relative to the axis of the fixed part, and has a second adapter plate that is axially opposed to the first adapter plate; The first adapter plate has a floating electrical contact mechanism protruding toward the second adapter plate. The second adapter plate has an electrical contact track on its opposing surface toward the first adapter plate. The floating electrical contact mechanism is configured to roll and / or slide along the electrical contact track during the movement of the rotating part relative to the fixed part, while simultaneously axially supporting the rotating part.

2. The nursing appliance accessory according to claim 1, characterized in that, The floating electrical contact mechanism includes electrical contacts and floating elastic elements; The electrical contact has an arc-shaped contact portion for making electrical contact with the electrical contact track, and the floating elastic element is disposed below the electrical contact, with the bottom end of the floating elastic element fixed to the first adapter plate.

3. The nursing appliance accessory according to claim 2, characterized in that, The nursing appliance accessory also includes a sleeve disposed around the floating elastic element.

4. The nursing appliance accessory according to claim 1, characterized in that, There are multiple electrical contact tracks; The nursing device accessory includes multiple sets of floating electrical contact mechanisms, each set of floating electrical contact mechanisms having multiple floating electrical contact mechanisms, wherein each set of floating electrical contact mechanisms corresponds to one electrical contact track, and each set of floating electrical contact mechanisms is set on the corresponding electrical contact track.

5. The nursing appliance accessory according to claim 4, characterized in that, Each of the electrical contact tracks is arranged concentrically at intervals in the radial direction.

6. The nursing appliance accessory according to claim 1, characterized in that, The electrical contact track includes a power supply track, which is configured to form a power supply connection with the first adapter plate.

7. The nursing appliance accessory according to claim 6, characterized in that, The power supply rails include a positive power supply rail and a negative power supply rail.

8. The nursing appliance accessory according to claim 6, characterized in that, The electrical contact track also includes a signal track, which is configured to be electrically connected to the first adapter plate for transmitting electrical signals.

9. The nursing appliance accessory according to claim 8, characterized in that, The signal track includes a signal transmitting track and a signal receiving track.

10. The nursing appliance accessory according to claim 1, characterized in that, The fixing part also includes a connecting part for connecting the main unit of the nursing device and multiple electrical connectors; The connecting portion includes a flange having multiple extending channels, the multiple electrical connectors being electrically connected to the floating electrical contact mechanism, the multiple electrical connectors extending through the corresponding extending channels and the contacts of the multiple electrical connectors being located at the ends of the flange.

11. The nursing appliance accessory according to claim 1, characterized in that, The nursing appliance accessory also includes a drive motor, which comprises a stator and a rotor; The stator is fixedly connected to the fixed part, and the rotor is drivenly connected to the rotating part; The central region of the drive motor has a central flow channel, and both the first adapter plate and the second adapter plate have an inner hole surrounding the central flow channel.

12. The nursing appliance accessory according to claim 11, characterized in that, The nursing device accessory also includes a control plate fixed to the rotating part; The control board and the second adapter plate are spaced apart axially, and a plurality of rigid connecting rods are provided between the control board and the second adapter plate, which are spaced apart circumferentially. At least some of the rigid connecting rods are conductive.

13. A nursing appliance, characterized in that, include: Host; as well as Nursing appliance accessories according to any one of claims 1 to 12, The nursing device accessory is detachably connected to the main unit.

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