Rotating assembly and wireless charging device

Abstract

This utility model relates to the field of wireless charging device technology, and discloses a rotating component and a wireless charging device. The rotating component includes a fixed part and a rotating part that slide against each other through arc-shaped surfaces. The fixed part includes a spherical or partially spherical positioning component and a reset component. The inner surface of the rotating part is provided with a sliding groove, and multiple positioning slots are spaced apart on the sliding groove. The wireless charging device of this utility model solves the problems of screen reflection and poor viewing angle caused by the non-adjustable angle of the support surface. Users can freely adjust the placement angle of the electrical device according to actual needs, improving the comfort and ease of use of the electrical device. The cooperation structure between the positioning component and the positioning slot provides a clear angle positioning point, allowing users to quickly adjust and lock the angle of the rotating part without repeated manual adjustments. The mechanical locking mechanism ensures the stability of the adjusted angle and avoids accidental deflection during use.

Description

Technical Field

[0001] This utility model relates to the field of wireless charging device technology, and in particular to a rotating component and a wireless charging device including the same. Background Technology

[0002] With the increasing popularity of wireless charging technology, wireless chargers have become an important accessory for many electronic devices, especially smartphones. Traditional wireless charging devices typically have a fixed surface on which users place wirelessly charging-enabled devices (such as mobile phones) to begin charging.

[0003] In actual use, users often need to view screen content or operate their phones while charging. A fixed placement angle may not be suitable for different scenarios and different users' viewing habits, resulting in screen glare, poor viewing angle, and affecting user experience. Utility Model Content

[0004] The main purpose of this invention is to propose a rotating component for a wireless charging device, aiming to solve the technical problem of how to improve the performance of the wireless charging device.

[0005] To achieve the above objectives, the rotating component proposed in this utility model includes a fixed part and a rotating part that slide against each other through arc-shaped surfaces. The fixed part includes a spherical or partially spherical positioning member and a reset member. The inner surface of the rotating part is provided with a sliding groove, and multiple positioning grooves are provided at intervals on the sliding groove.

[0006] Optionally, the reset element is a spring, and the shape of the positioning groove matches the shape of the positioning element, so that the positioning element can slide into and be fixed in the positioning groove.

[0007] Optionally, the fixing part is provided with a mounting hole, and the resetting member and the positioning member are sequentially arranged in the mounting hole from the inside to the outside, so that the positioning member can extend or retract into the mounting hole.

[0008] This utility model also proposes a wireless charging device, including the rotating component as described above, as well as a bottom shell and a support, wherein the fixing part of the rotating component is connected through the bottom shell and the support.

[0009] Optionally, the support has a support surface for placing electrical equipment, and the support is rotatably mounted on the top of the base shell.

[0010] It also includes a wireless charging module, which is installed inside the bracket and adjacent to the support surface to wirelessly charge electrical devices placed on the support surface.

[0011] Optionally, the top of the bottom shell is formed with a concave curved surface, and the bottom of the support is formed with a convex curved surface, wherein the convex curved surface and the concave curved surface are rotatably engaged.

[0012] Optionally, the top of the bottom shell is provided with a guide groove, and the bottom of the support is provided with a guide rib, which is slidably engaged with the guide groove.

[0013] Optionally, a limiting groove is provided at the bottom of the support, and the fixing part extends into the limiting groove. The fixing part is used to stop the groove walls at both ends of the limiting groove to limit the rotation range of the support.

[0014] Optionally, the limiting groove passes through the inner cavity of the support, the fixing part passes through the limiting groove and extends into the inner cavity of the support, and the part of the fixing part extending into the inner cavity of the support is provided with a limiting boss. The bottom surface of the limiting boss is used to block the inner wall surface of the support to restrict the support from detaching from the bottom shell upward.

[0015] Optionally, the portion of the support forming the support surface is a magnetic element, or the support is provided with a magnetic element adjacent to the support surface, and the magnetic element is used to hold the electrical equipment placed on the support surface in place.

[0016] The rotating component of this invention, when applied to a wireless charging device, solves the problems of screen glare and poor viewing angle caused by the non-adjustable support surface angle of traditional wireless charging devices. Users can freely adjust the placement angle of the device according to their actual needs, improving the comfort and ease of use. The mating structure of the positioning component and the positioning groove provides a clear angle positioning point, allowing users to quickly adjust and lock the angle of the rotating part without repeated manual adjustments. The mechanical locking mechanism ensures the stability of the adjusted angle, preventing accidental deflection during use. The multiple positioning grooves provide multiple preset angle selections to meet the viewing and operation needs of different users. The spatial integration design of the positioning and limiting structures simplifies the overall structure and improves the compactness and reliability of the device. The switchable mating mechanism ensures the flexibility of angle adjustment, while tactile feedback enhances the accuracy of operation and the user experience. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the structure of the wireless charging device of this utility model;

[0019] Figure 2 This is a schematic diagram of another embodiment of the wireless charging device of this utility model;

[0020] Figure 3 This is a cross-sectional view of the wireless charging device of this utility model;

[0021] Figure 4 This is an exploded view of the structure of the wireless charging device of this utility model;

[0022] Figure 5 This is a schematic diagram of the support and fixing part in this utility model;

[0023] Figure 6 This is a partial structural schematic diagram of the wireless charging device of this utility model;

[0024] Figure 7 This is a partial exploded view of the support and fixing part in this utility model.

[0025] Explanation of icon numbers:

[0026] 10 bottom shell 20 support 21 support surface 30 Wireless charging module 11 Guide groove 22 Guide ribs 40 Fixing part 23 Limiting groove 41 Limiting boss 42 Positioning components 43 Reset component 24 positioning groove 411 Mounting holes 25 chute

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] This invention proposes a rotating component for use in wireless charging devices, aiming to solve the technical problem of how to improve the performance of wireless charging devices.

[0032] In the embodiments of this utility model, such as Figure 6 and Figure 7 As shown, the rotating assembly includes a fixed part 40 and a rotating part that slide against each other through arc-shaped surfaces. The fixed part 40 includes a spherical or partially spherical positioning member 42 and a reset member 43. The inner surface of the rotating part is provided with a sliding groove 25, and a plurality of positioning grooves 24 are provided on the sliding groove 25 at intervals.

[0033] The positioning element 42 can be designed as an elastic steel ball. The distribution trajectory of the positioning grooves 24 is the same as the rotation trajectory of the rotating part. The arc length of the distance between two adjacent positioning grooves 24 corresponds to the interval of the rotation angle adjustment. For example, a positioning groove 24 is set every 15°. The mating depth between the positioning element 42 and the positioning groove 24 must ensure that the locking force is greater than the torque generated by the weight of the rotating part. The layout of multiple positioning grooves 24 creates discrete mechanical locking points on the rotation path of the rotating part. When the rotating part rotates, the positioning element 42 slides along the inner wall of the rotating part until it is embedded in the target positioning groove 24 to achieve self-locking.

[0034] When the rotating part adjusts the angle of the support surface 21 around the rotation axis, the positioning element 42 remains stationary. When the rotating part rotates to a preset angle position, the positioning element 42 engages with the corresponding positioning groove 24, physically restricting the rotation of the rotating part. Multiple positioning grooves 24 are arranged at intervals along the rotation direction, forming multiple discrete fixed positions. For example, three positioning grooves 24 are set to correspond to the support surface 21 tilting at 15°, 30°, and 45° respectively. When the user adjusts the angle, they can feel the tactile feedback generated by the engagement of the positioning element 42 with different positioning grooves 24, thereby confirming the position switching. Through the switchable engagement mechanism, the support surface 21 can achieve self-locking at multiple preset angles, avoiding displacement caused by equipment vibration or external force interference, while reducing the number of repeated adjustment operations.

[0035] The above technical solution achieves multi-position fixing functionality after the angle of the support surface 21 is adjusted. The mating structure between the positioning component 42 and the positioning groove 24 provides a clear angle positioning point, allowing users to quickly adjust and lock the angle of the support surface 21 without repeated manual adjustments. The mechanical locking mechanism ensures the stability of the adjusted angle, preventing accidental deflection of the support surface 21 during use. The multiple positioning grooves 24 provide multiple preset angle selections to meet the viewing and operation needs of different users. The spatial integration design of the positioning and limiting structures simplifies the overall structure and improves the compactness and reliability of the device. The switchable mating mechanism ensures the flexibility of angle adjustment, while tactile feedback enhances the accuracy of operation and user experience.

[0036] For example, such as Figure 7 As shown, the fixing part 40 is provided with a mounting hole 411, and the reset member 43 and the positioning member 42 are arranged sequentially from the inside to the outside in the mounting hole 411, so that the positioning member 42 can extend or retract from the mounting hole 411.

[0037] The mounting hole 411 can be configured as a cylindrical channel, with its axis perpendicular to the bottom surface of the limiting boss 41. The positioning member 42 can be a spherical structure, and the resetting member 43 can be a helical spring. During installation, one end of the spring abuts against the positioning member 42, and the other end abuts against the limiting boss 41. When the positioning groove 24 rotates with the rotating part to align with the mounting hole 411, the compression of the resetting member 43 decreases, and the resetting member 43 pushes the positioning member 42 out of the mounting hole 411 so that the mounting hole 411 is embedded in the positioning groove 24. When the positioning groove 24 rotates with the rotating part to deviate from the mounting hole 411, the positioning member 42 is squeezed back into the mounting hole 411 by the inner wall of the rotating part, and the resetting member 43 is compressed and accumulates elastic force.

[0038] The positioning element 42 maintains its extended tendency under the elastic force of the reset element 43. During the rotation of the rotating part, when the rotating part drives the positioning groove 24 to align with the positioning element 42, the positioning element 42 automatically engages with the positioning groove 24 under the elastic force, and the support surface 21 is locked at a preset angle. When the angle needs to be adjusted, the user applies external force to make the positioning element 42 retract into the mounting hole 411 against the force of the reset element 43, disengaging from the current positioning groove 24, at which point the rotating part can rotate freely. After the rotating part rotates to the new angle position, the reset element 43 pushes the positioning element 42 to extend again and engage with the new positioning groove 24. Through the elastic reset characteristic of the spring, the positioning element 42 can automatically switch between extension and retraction without manual operation. This structure ensures that the positioning element 42 is always in the extended state when there is no external force, avoiding positioning failure due to incomplete reset, and improving the automation of angle adjustment.

[0039] The above technical solution achieves the automatic reset function of the positioning component 42, ensuring that the positioning component 42 is always subjected to a stable extension driving force during angle adjustment. When the rotating part rotates to any position of the positioning groove 24, the elastic restoring force of the reset component 43 drives the positioning component 42 to accurately embed into the groove, eliminating the manual reset operation and avoiding positioning failure caused by the positioning component 42 not being fully extended. This mechanical self-resetting structure makes the angle switching process smooth and reliable, and can automatically complete the positioning lock after each rotation operation, significantly improving the positioning accuracy and operation efficiency of angle adjustment.

[0040] When the user adjusts the angle of the rotating part, the positioning part 42 may get stuck or resist due to lack of guidance during its movement between adjacent positioning slots 24, resulting in insufficient smooth angle adjustment and affecting the user experience.

[0041] For example, such as Figure 6 and Figure 7 As shown, a sliding groove 25 is provided between two adjacent positioning grooves 24. The sliding groove 25 connects the two adjacent positioning grooves 24. When the positioning member 42 is between two adjacent positioning grooves 24, it moves along the sliding groove 25.

[0042] The reset member 43 is a spring, and the shape of the positioning groove 24 matches the shape of the positioning member 42, so that the positioning member 42 can slide into and be fixed in the positioning groove 24.

[0043] The width of the slide groove 25 can be set slightly larger than the diameter of the positioning member 42, so that the positioning member 42 maintains contact and reduces frictional resistance when sliding in the slide groove 25. The depth of the slide groove 25 can be less than the depth of the positioning groove 24. A rounded transition surface can be provided at the connection between the positioning groove 24 and the slide groove 25 to prevent the positioning member 42 from colliding when entering the slide groove 25 from the positioning groove 24.

[0044] When the rotating part rotates, the positioning member 42 is kept in contact with the positioning groove 24 or the slide groove 25 by the elastic force of the reset member 43. After disengaging from the current positioning groove 24, the positioning member 42 slides along the slide groove 25 to the next adjacent positioning groove 24. The guiding effect of the slide groove 25 constrains the movement trajectory of the positioning member 42, ensuring that it always moves in a predetermined direction. When the positioning member 42 reaches the next positioning groove 24, the elastic force of the reset member 43 pushes the positioning member 42 into the groove to complete the positioning. At this time, the connection angle between the slide groove 25 and the positioning groove 24 allows the positioning member 42 to fall naturally into the bottom of the groove without the need for additional adjustment force.

[0045] Through the above technical solution, continuous guiding movement of the positioning component 42 between adjacent positioning slots 24 is achieved, eliminating motion interference caused by discontinuous paths when the positioning component 42 moves between slots. This structure, while ensuring multi-angle positioning functionality, enables the rotation angle adjustment process of the rotating part to have predictable linear motion characteristics, significantly improving the smoothness of the rotation.

[0046] like Figures 1 to 5 As shown, this utility model also proposes a wireless charging device, which includes a bottom shell 10, a support 20, and a rotating assembly. The specific structure of the rotating assembly is as described in the above embodiments. Since this wireless charging device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The fixing part 40 of the rotating assembly penetrates and connects the bottom shell 10 and the support 20.

[0047] In the embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the support 20 has a support surface 21 for placing electrical equipment. The support 20 is rotatably mounted on the top of the bottom shell 10. The rotation axis of the support 20 extends laterally and is parallel to the support surface 21, so that the angle between the support surface 21 and the horizontal direction is adjustable. The wireless charging device also includes a wireless charging module 30, which is installed in the support 20 and adjacent to the support surface 21 to wirelessly charge the electrical equipment placed on the support surface 21.

[0048] The support 20 and the base shell 10 form a rotatable connection structure around a specific axis, which can be achieved using a pivot, rotating shaft, or spherical mating structure. By rotating the support 20, the tilt angle of the support surface 21 can be adjusted to meet the user's needs for adjusting the placement angle of the electrical equipment. The rotation axis of the support 20 remains parallel to the support surface 21, ensuring that when the support surface 21 rotates around the rotation axis of the support 20, it only changes the angle with the horizontal direction without causing any other directional deviation. The wireless charging module 30 is integrated inside the support 20 and close to the placement area of ​​the electrical equipment. Specifically, it can be achieved by having the wireless charging coil close to the back side of the support surface 21. By shortening the distance between the wireless charging module 30 and the electrical equipment, the stability of the charging efficiency for the electrical equipment is ensured under different tilt angles of the support surface 21.

[0049] By employing a specific structural design where the rotation axis of the support 20 is parallel to the support surface 21, the angle can be adjusted by rotating the support surface 21 in only one direction, allowing users to flexibly adjust the placement angle of electrical equipment. Simultaneously, the close-proximity fixed arrangement of the wireless charging module 30 and the support surface 21 ensures that the charging function is unaffected by positional shifts during angle changes, forming a synergistic optimization structure for angle adjustment and charging efficiency.

[0050] When the wireless charging device is in operation, the user places a wirelessly charging-enabled device (such as a mobile phone or tablet) on the support surface 21. The user can rotate the support 20 to adjust the angle between the support surface 21 and the horizontal plane as needed. The wireless charging module 30 rotates with the support 20, maintaining a constant relative position with the device and ensuring stable charging efficiency.

[0051] The rotatable design of the stand 20 solves the viewing angle problem caused by the traditional fixed-angle support surface 21. Users can freely adjust the placement angle of the device according to factors such as ambient light and personal habits, avoiding screen glare and obtaining the best viewing and operating experience. The wireless charging module 30 is integrated inside the stand 20 and close to the support surface 21, shortening the distance between it and the device and ensuring effective charging distance and efficiency at different tilt angles.

[0052] When using the wireless charging device, place the device on the support surface 21 and adjust the angle by gripping the support 20 and rotating it upwards or downwards. The bottom shell 10 contains a control circuit, which is connected to the wireless charging module 30 inside the support 20 via a flexible connecting cable. The control circuit is responsible for detecting the placement status of the device and adjusting the charging power.

[0053] Through the above solution, this application solves the problems of screen glare and poor viewing angle caused by the non-adjustable angle of the support surface 21 in traditional wireless charging devices. Users can freely adjust the placement angle of the device according to their actual needs, improving the comfort and ease of use. The adjustable support surface 21 can adapt to different ambient light conditions, reducing screen glare and improving content visibility. Simultaneously, the wireless charging function and angle adjustment function work together to maintain stable charging efficiency at various tilt angles, improving the product's practicality and user experience.

[0054] For example, such as Figures 3 to 5 As shown, the top of the bottom shell 10 forms a concave curved surface, and the bottom of the support 20 forms a convex curved surface. The convex curved surface and the concave curved surface are rotatably engaged.

[0055] The geometric matching of the concave and convex surfaces is constructed as a revolute pair with a continuous contact surface. The concave surface can be designed as an arc-shaped groove or a spherical depression. After the convex surface is embedded in the concave surface, the contact area between the bottom shell 10 and the support 20 is expanded into a surface contact extending around the rotation axis.

[0056] During the angle adjustment of the support surface 21, the rotation trajectory of the convex surface along the concave surface is determined by the coincidence of their curvature center axes. When the support 20 rotates around the rotation axis, the contact area between the concave and convex surfaces slides synchronously, and the contact pressure is distributed along the normal direction of the surfaces. The uniform pressure distribution on the contact surface reduces the local stress peak, effectively preventing the base shell 10 or the support 20 from deforming due to uneven stress.

[0057] Through the above technical solution, a surface-contact rotational support between the support 20 and the base shell 10 is achieved. The geometric matching design of the concave and convex curved surfaces ensures that the contact surfaces between the curved surfaces are evenly distributed when the support 20 is adjusted around the rotation axis, enhancing the structural stability during rotation and avoiding local stress concentration or displacement caused by single-point support. The fit between the convex and concave curved surfaces further improves the positioning accuracy of the rotation axis, ensuring that the support surface 21 and the base shell 10 remain reliably connected when the support 20 is adjusted at any angle. This improves the smoothness of the angle adjustment process of the support 20, thereby enhancing the user's operating experience when adjusting the angle of the support surface 21.

[0058] For example, such as Figure 4 and Figure 5 As shown, the top of the bottom shell 10 is provided with a guide groove 11, and the bottom of the support 20 is provided with a guide rib 22. The guide rib 22 and the guide groove 11 are slidably engaged.

[0059] The guide groove 11 extends in an arc shape, and its extension trajectory is concentric with the rotation axis of the support 20. The cross-sectional shape of the guide rib 22 can be trapezoidal, semi-circular, or rectangular, and its width forms a clearance fit with the width of the guide groove 11. When the support 20 rotates around the rotation axis, the sliding fit between the guide rib 22 and the guide groove 11 creates a constraint, and the sidewall of the guide groove 11 contacts the side of the guide rib 22, eliminating the displacement caused by the clearance between the concave and convex curved surfaces and limiting the movement of the support 20 along the rotation axis. This structure achieves stability of the rotation trajectory through mechanical limiting while retaining the flexibility of curved surface rotation.

[0060] The cooperation structure of guide groove 11 and guide rib 22 effectively limits the offset of support 20 during rotation. Guide groove 11 provides precise trajectory guidance for the rotation of support 20, ensuring that support 20 always rotates along the preset trajectory. Guide rib 22 is embedded in guide groove 11, forming a reliable mechanical constraint and eliminating redundancy in degrees of freedom during rotation. This structural design significantly improves the stability and accuracy of support 20 rotation, making the angle adjustment of support surface 21 more stable and controllable. At the same time, the cooperation of guide groove 11 and guide rib 22 enhances the connection rigidity between support 20 and base shell 10, effectively preventing swaying or offset of support 20 during adjustment, ensuring stable placement of electrical equipment on support surface 21.

[0061] For example, such as Figure 4 As shown, the top of the bottom shell 10 forms a concave spherical surface, the support 20 is shaped like a spherical cap, and the support surface 21 is the plane of this spherical cap. The concave spherical surface is constructed as a spherical cap structure with continuous curvature, and a portion of the surface of the spherical cap support 20 is machined into a convex spherical surface that matches the concave spherical surface, with their centers coinciding to ensure rotational freedom. The support surface 21 is defined as the maximum cross-sectional plane of the spherical cap structure to form a stable support area.

[0062] If there is no effective rotation range limiting mechanism during the rotation of support 20, excessive rotation of support 20 may cause structural interference and damage.

[0063] For example, such as Figure 5 and Figure 6 As shown, a limiting groove 23 is provided at the bottom of the support 20, and the fixing part 40 extends into the limiting groove 23. The fixing part 40 is used to stop the groove walls at both ends of the limiting groove 23 to limit the rotation range of the support 20.

[0064] There are several ways to achieve the cooperation between the fixing part 40 and the limiting groove 23. The limiting groove 23 can be set as an arc-shaped groove surrounding the rotation axis of the support 20. Its circumferential extension length determines the rotation angle range of the support 20. For example, when the arc length of the limiting groove 23 corresponds to a central angle of 90 degrees, the rotation range of the support 20 is limited to ±45 degrees. This angle range is also the adjustable range of the angle between the support surface 21 and the horizontal plane. The fixing part 40 can adopt a cylindrical pin or a protrusion structure. Its diameter or width forms a clearance fit with the width of the limiting groove 23 to ensure smooth rotation while providing a rigid stop. The groove wall of the limiting groove 23 can be provided with a buffer material layer, such as a silicone gasket, to reduce collision noise when stopping.

[0065] When the support 20 rotates around the rotation axis, the limiting groove 23 rotates synchronously with the support 20, and the fixing part 40 moves relative to it within the limiting groove 23. When the support 20 rotates to a preset angle, the end wall of the limiting groove 23 contacts the fixing part 40, preventing further rotation through physical interference. Since the fixing part 40 is fixed to the bottom shell 10, and the limiting groove 23 is coaxially arranged with the rotation axis of the support 20, the accuracy of the rotation angle limitation is directly controlled by the machining dimensions of the limiting groove 23, without relying on external sensors or complex control logic. Therefore, when the user adjusts the angle of the support surface 21, the wireless charging device can automatically constrain the tilt angle within a safe range, avoiding interference between the electrical device and the bottom shell 10 due to excessive tilt angle of the support surface 21, while maintaining a compact structure and intuitive operation.

[0066] The above technical solution achieves precise control over the rotation range of the support 20. The cooperation between the fixing part 40 and the limiting groove 23 forms a mechanical angle constraint, preventing excessive rotation of the support 20 and resulting structural damage. This design improves the safety of the wireless charging device while ensuring the angle adjustment function. The limiting mechanism has a simple structure, is easy to process and assemble, and enhances product reliability and service life.

[0067] If there is a lack of longitudinal restraint between the support 20 and the bottom shell 10, the support 20 may detach from the bottom shell 10 upwards when subjected to external forces, affecting the structural stability of the device.

[0068] For example, such as Figure 5 and Figure 6 As shown, the limiting groove 23 passes through the inner cavity of the support 20, and the fixing part 40 passes through the limiting groove 23 and extends into the inner cavity of the support 20. The part of the fixing part 40 extending into the inner cavity of the support 20 is provided with a limiting boss 41. The bottom surface of the limiting boss 41 is used to block the inner wall surface of the support 20 to restrict the support 20 from detaching from the bottom shell 10 upwards.

[0069] The limiting groove 23 is designed as a through structure, allowing the fixing part 40 to extend into the support 20, forming a through-type connection. The total width of the limiting boss 41 and the fixing part 40 is greater than the width of the limiting groove 23, so that after the fixing part 40 extends into the support 20, the bottom surface of the limiting boss 41 can face the inner wall surface of the support 20. A friction-resistant gap can be formed between the bottom surface of the limiting boss 41 and the inner wall surface of the support 20 to prevent the limiting boss 41 from contacting the support 20 and affecting the rotation process of the support 20. When the support 20 is subjected to an upward force, the longitudinal displacement of the support 20 is limited by the interference between the limiting boss 41 and the inner wall of the support 20.

[0070] Through the above technical solution, longitudinal constraint between the support 20 and the base shell 10 is achieved. The design of the limiting groove 23 penetrating the inner cavity of the support 20, and the limiting protrusion 41 at its end after the fixing part 40 extends into the inner cavity of the support 20, can limit the inner wall surface of the support 20, effectively preventing the support 20 from moving upwards. This dual limiting mechanism retains the original rotation range limitation function while adding longitudinal anti-detachment constraint, ensuring that the support 20 maintains a stable connection with the base shell 10 during rotation adjustment, avoiding structural separation problems caused by unexpected external forces.

[0071] For example, the portion of the support 20 that forms the support surface 21 is a magnetic element, or the support 20 is provided with a magnetic element adjacent to the support surface 21, and the magnetic element is used to hold the electrical equipment placed on the support surface 21 in place.

[0072] There are two implementation methods for the magnetic attractor: In the first implementation method, the support surface 21 is directly made of magnetic material, such as neodymium iron boron magnet or permanent magnet alloy plate, and its surface can be covered with an insulating layer to adapt to the wireless charging function; In the second implementation method, the magnetic attractor is embedded in the support 20 and maintains a distance of 1-5 mm from the support surface 21. The magnetic attractor penetrates the support surface in a non-contact manner to generate an adsorption force.

[0073] When the support surface 21 is directly formed by magnetic components, the metal parts or magnetic attachments built into the electrical device are attracted and adhered to the support surface 21. When the support 20 rotates to the tilt angle, the magnetic force and the component of the device's gravity are balanced, preventing the device from sliding down the tilt surface. When the magnetic components are built into the support 20, a non-magnetic material, such as a plastic or aluminum alloy shell, is used to isolate the magnetic components from the support surface 21. The magnetic lines of force penetrate the support surface 21 and act on the device. In this case, the magnetic components can be placed around the wireless charging module 30 to avoid interfering with charging efficiency. Both implementations use magnetic attraction to replace traditional friction fixation, continuously providing a fixing force during the rotation of the support 20. Thus, without adding a mechanical locking structure, the function of freely adjustable angle of the support 20 is retained, while solving the technical defect of unstable device fixation.

[0074] The above technical solution overcomes the problem of equipment sliding on the inclined support surface 21 by utilizing magnetic attraction. The magnetic force and the component of gravity form a static balance, achieving stable fixation of the electrical equipment. This solution replaces traditional friction fixation with physical adsorption, avoiding equipment wear caused by mechanical clips, and eliminating the need for manual locking when adjusting the angle.

[0075] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A rotating assembly for a wireless charging device, characterized in that, The rotating assembly includes a fixed part and a rotating part that slide against each other through an arc-shaped surface. The fixed part includes a spherical or partially spherical positioning element and a reset element. The inner surface of the rotating part is provided with a sliding groove, and multiple positioning grooves are provided at intervals on the sliding groove.

2. The rotary assembly of claim 1, wherein, The reset element is a spring, and the shape of the positioning groove matches the shape of the positioning element, so that the positioning element can slide into and be fixed in the positioning groove.

3. A rotary assembly according to claim 1 or 2, wherein The fixing part is provided with a mounting hole, and the resetting member and the positioning member are arranged sequentially from the inside to the outside in the mounting hole, so that the positioning member can extend or retract into the mounting hole.

4. A wireless charging device, comprising: The rotating assembly according to any one of claims 1-3 further includes a base and a support, wherein the fixing portion of the rotating assembly is connected through the base and the support.

5. The wireless charging device of claim 4, wherein, The support has a support surface for placing electrical equipment, and the support is rotatably mounted on the top of the base shell. It also includes a wireless charging module, which is installed inside the bracket and adjacent to the support surface to wirelessly charge electrical devices placed on the support surface.

6. The wireless charging device of claim 4, wherein, The top of the bottom shell has a concave curved surface, and the bottom of the support has a convex curved surface. The convex curved surface and the concave curved surface are rotatably fitted together.

7. The wireless charging device of claim 4, wherein, The top of the bottom shell is provided with a guide groove, and the bottom of the support is provided with a guide rib. The guide rib and the guide groove are slidably engaged.

8. The wireless charging device of claim 4, wherein, The bottom of the support has a limiting groove, and the fixing part extends into the limiting groove. The fixing part is used to stop the groove walls at both ends of the limiting groove to limit the rotation range of the support.

9. The wireless charging device of claim 8, wherein, The limiting groove passes through the inner cavity of the support, and the fixing part passes through the limiting groove and extends into the inner cavity of the support. The part of the fixing part that extends into the inner cavity of the support is provided with a limiting boss. The bottom surface of the limiting boss is used to block the inner wall surface of the support to prevent the support from detaching from the bottom shell upwards.

10. The wireless charging device of claim 5, wherein, The portion of the support that forms the supporting surface is a magnetic element, or the support has a magnetic element inside it, the magnetic element being adjacent to the supporting surface, and the magnetic element being used to hold the electrical equipment placed on the supporting surface in place.

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