Magnetic pen self-aligning charging device and electronic devices

Abstract

This utility model discloses a magnetic pen self-aligning charging device and electronic device, comprising: a magnetic pen with a first magnet embedded in its outer wall and its outer surface flush with the outer wall of the magnetic pen, and a charging port on the magnetic pen; a charging slot on a protective sleeve for accommodating the magnetic pen; a through groove on the outer wall of the protective sleeve, in which a second magnet is fixedly installed, the magnetic pole of the second magnet facing into the charging slot being the same as the outward magnetic pole of the first magnet; a fixing cavity on the protective sleeve communicating with the charging slot; and a charging plate disposed in the fixing cavity, the charging plate having a charging interface, and a third magnet disposed near the charging interface, the outward magnetic pole of the third magnet being opposite to the magnetic pole of the first magnet. This utility model allows the magnetic pen to be inserted into the charging slot of the protective sleeve without manual alignment of the charging port; the magnetic pen automatically rotates under the combined action of the repulsive force of the second magnet and the attractive force of the third magnet, thus achieving charging.

Description

Technical Field

[0001] This utility model relates to the field of magnetic pens, and in particular to a charging device and electronic device for a magnetic pen that self-aligns. Background Technology

[0002] A magnetic pen is a pen with a magnetic attachment function, commonly used in devices such as tablets, graphics tablets, and smart notebooks. Magnetic pens can be attached to devices, making them easy to store and carry, preventing loss, and allowing for convenient access when needed, thus improving ease of use and making writing, drawing, and other operations more efficient.

[0003] Currently, when the magnetic pen needs to be charged, it must be placed in the protective sleeve slot in the indicated single direction to stably attach to the tablet for charging and prevent it from falling off. If the placement direction is incorrect, the magnetic pen cannot stably attach for charging and is prone to rotating in the pen slot and falling off. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing magnetic pens require the pen to be placed in a single direction within the protective sleeve slot to stably attach to a tablet for charging and prevent it from falling off. This invention provides a self-aligning charging device and electronic device for the magnetic pen. It allows users to simply insert the pen into the charging slot of the protective sleeve; no manual alignment of the charging port is required. The pen automatically rotates under the combined action of the repulsive force of the second magnet and the attractive force of the third magnet, quickly aligning the charging port with the charging interface for charging.

[0005] To solve the above-mentioned technical problems, this utility model discloses a magnetic pen self-aligning charging device, comprising: A magnetic pen has a first through hole on its outer side wall, a first magnet is embedded in the first through hole and the outer surface of the first magnet is flush with the outer side wall of the magnetic pen, and a charging port is provided on the magnetic pen. The protective case has a charging slot for accommodating the magnetic pen and providing space for the pen to rotate. A through slot communicating with the charging slot is provided on the outer side wall of the protective case. A second magnet is fixedly installed in the through slot, wherein the magnetic pole of the second magnet facing into the charging slot is the same as the magnetic pole of the first magnet facing outward. The protective case also has a fixing cavity communicating with the charging slot. The charging plate is set inside the fixed cavity. The charging plate is equipped with a charging interface. A third magnet is set near the charging interface. The magnetic pole of the third magnet facing outward is opposite to the magnetic pole of the first magnet. When the magnetic pen is inserted into the charging slot, it rotates within the slot under the combined force of the repulsive force of the second magnet and the attractive force of the third magnet, so that the charging port is aligned with the charging interface.

[0006] Using the above technical solution, the magnetic pen can be inserted into the charging slot of the protective case without manually aligning the charging port. The magnetic pen automatically rotates under the combined action of the repulsive force of the second magnet and the attractive force of the third magnet, so that the charging port is quickly aligned with the charging interface to achieve charging.

[0007] According to another specific embodiment of the present invention, the upper part of the charging slot is a conical flare, the conical flare is arranged outward in a divergent manner, and the maximum diameter of the conical flare is greater than the diameter of the magnetic pen. The lower part of the charging slot has a circular straight hole. The diameter of the circular straight hole is larger than the diameter of the magnetic pen but smaller than the maximum diameter of the tapered flare.

[0008] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the through slot is connected to the circular straight hole, and two through slots are provided. The two through slots are spaced apart along the length direction of the charging slot, and the number of second magnets is the same as the number of through slots.

[0009] According to another specific embodiment of the present invention, the number of first magnets on the magnetic pen corresponds to the number of second magnets, and when the magnetic pen is inserted into the charging slot, the positions of the first magnets and the positions of the second magnets are aligned.

[0010] According to another specific embodiment of the present invention, the third magnet is the same number as the second magnet, and the position of the third magnet is aligned with the position of the second magnet.

[0011] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the fixing cavity and the through groove are arranged opposite to each other, and when the charging plate is fixed in the fixing cavity, the charging interface protrudes from the fixing cavity.

[0012] According to another specific embodiment of the present invention, the protective sleeve is made of plastic, and the second magnet is fixed in the through groove by insert injection molding.

[0013] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the charging device for the magnetic pen self-alignment also includes a bracket, and the protective cover is rotatably connected to the bracket via a rotating shaft, and the bracket is used to support and fix the protective cover.

[0014] The present invention also discloses an electronic device that integrates the above-mentioned magnetic pen self-aligning charging device. Attached Figure Description

[0015] Figure 1 This diagram shows the structure of the self-aligning charging device for the magnetic pen according to an embodiment of the present invention.

[0016] Figure 2 This diagram illustrates the structure of the magnetic pen, which is a self-aligning charging device according to an embodiment of the present invention.

[0017] Figure 3 This diagram shows the structure of the magnetic pen self-aligning charging device without the magnetic pen, according to an embodiment of the present invention. Detailed Implementation

[0018] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0019] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0021] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0022] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" 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 this embodiment based on the specific circumstances.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0024] Reference Figures 1 to 3 This application provides a self-aligning charging device for a magnetic pen, comprising: The magnetic pen 1 has a first through hole 11 on its outer side wall, a first magnet 12 is embedded in the first through hole 11 and the outer surface of the first magnet 12 is flush with the outer side wall of the magnetic pen 1, and a charging port 13 is provided on the magnetic pen 1. The protective sleeve 2 has a charging slot 21 for accommodating the magnetic pen 1 and providing space for the magnetic pen 1 to rotate. The outer wall of the protective sleeve 2 has a through groove 22 that communicates with the charging slot 21. A second magnet 23 is fixedly installed in the through groove 22, wherein the magnetic pole of the second magnet 23 facing into the charging slot 21 is the same as the magnetic pole of the first magnet 12 facing outward. The protective sleeve 2 also has a fixing cavity that communicates with the charging slot 21. The charging plate 3 is set in the fixed cavity. The charging plate 3 is provided with a charging interface 32. A third magnet 31 is provided near the charging interface 32. The outward magnetic pole of the third magnet 31 is opposite to the magnetic pole of the first magnet 12. When the magnetic pen 1 is inserted into the charging slot 21, it rotates within the charging slot 21 under the combined force of the repulsive force of the second magnet 23 and the attractive force of the third magnet 31, so that the charging port 13 is aligned with the charging interface 32.

[0025] In this embodiment, the shape of the first through hole 11 on the outer wall of the magnetic pen 1 is adapted to the shape of the first magnet 12, usually circular or square, to ensure that the first magnet 12 is tightly embedded. A slot or limiting structure can also be provided inside the first through hole 11 to limit the first magnet 12, preventing it from easily shifting in any direction after installation. Furthermore, the outer surface of the first magnet 12 is flush with the outer wall of the magnetic pen 1, which does not obstruct writing, gripping, or other operations, maintaining the overall integrity of the magnetic pen 1's appearance and use. This ensures that the first magnet 12 can be firmly attached to the magnetic pen 1, laying the foundation for subsequent magnetic attraction functions without affecting the original functions and user experience of the magnetic pen 1. This allows the magnetic pen 1 to possess charging-related magnetic attraction characteristics while still being as convenient to use as a regular magnetic pen 1.

[0026] The charging port 13 is located at one end of the magnetic pen 1. Its opening size and shape are consistent with the common charging interface 32 standard. The internal circuit is connected to the built-in rechargeable battery of the magnetic pen 1. An insulating protective layer is set around the charging port 13 to prevent accidental contact with external conductive materials that may cause a short circuit.

[0027] The charging slot 21 is elongated, slightly shorter than the magnetic pen 1, with a width and depth just enough to accommodate the magnetic pen 1 while allowing for adequate rotation. The inner walls of the charging slot 21 are smoothed to reduce friction when the magnetic pen 1 rotates. When the magnetic pen 1 is inserted into the charging slot 21, it fits easily thanks to the reserved space and can rotate within it without the user needing to manually adjust its angle.

[0028] The through slot 22 is perpendicular to the charging slot 21, and its width and depth are adapted to the size of the second magnet 23, so that the second magnet 23 is tightly fixed in the through slot 22. The inner wall of the through slot 22 is provided with slots or protrusions, and the second magnet 23 is provided with corresponding grooves or recesses to achieve a stable installation. After the magnetic pen 1 is inserted into the charging slot 21, the second magnet 23 uses the principle of like poles repulsion to generate an outward repulsive force on the magnetic pen 1, causing it to rotate.

[0029] The fixing cavity is located on one side of the charging slot 21. Its shape matches the shape of the charging board 3, and it is usually rectangular or square. The bottom and inner wall of the fixing cavity also have pre-drilled grooves for wiring, facilitating the orderly arrangement of the wiring connecting the charging board 3 to the external power source. When installing the charging board 3 into the fixing cavity, it is pushed in along the edge. The grooves guide the wiring, making the entire installation process neat and orderly, and facilitating subsequent inspection and maintenance. The charging interface 32 is located on the side of the charging board 3 facing the charging slot 21 and can mate with the charging port 13 of the magnetic pen 1. The third magnet 31 is installed around the periphery of the charging interface 32, symmetrically distributed around the interface. When the magnetic pen 1 rotates within the charging slot 21, the attraction of the third magnet 31 guides the magnetic pen 1 towards the charging interface 32. As the magnetic pen 1 approaches, the attraction becomes stronger, helping it accurately align the charging port 13 with the charging interface 32.

[0030] In actual use, when it is necessary to charge the magnetic pen 1, simply insert the magnetic pen 1 into the charging slot 21 of the protective case 2. The magnetic pen 1 will automatically rotate in the charging slot 21 under the combined action of the repulsive force of the second magnet 23 and the attractive force of the third magnet 31 until the charging port 13 is perfectly aligned with the charging interface 32 on the charging board 3, and then a stable charging process will begin. The whole operation is convenient and quick, greatly improving the user experience.

[0031] Using the above technical solution, the magnetic pen 1 can be inserted into the charging slot 21 of the protective case 2 without manually aligning the charging port 13. The magnetic pen 1 rotates automatically under the combined action of the repulsive force of the second magnet 23 and the attractive force of the third magnet 31, so that the charging port 13 is quickly aligned with the charging interface 32, and charging is realized.

[0032] In one feasible embodiment, the upper part of the charging slot 21 is a tapered flare, which is arranged outward in a divergent manner, and the maximum diameter of the tapered flare is greater than the diameter of the magnetic pen 1. The lower part of the charging slot 21 is a circular straight hole. The diameter of the circular straight hole is larger than the diameter of the magnetic pen 1 but smaller than the maximum diameter of the conical flared opening.

[0033] In this embodiment, the tapered flare is located at the upper entrance of the charging slot 21, extending outwards in a natural diverging shape. Its inner wall features a smooth transition design, gradually converging from the edge of the slot towards the lower circular straight hole, forming a continuous, angle-free inclined surface. The inclination angle of the tapered flare ensures sufficient opening width while naturally guiding the magnetic pen 1 to slide into the lower circular straight hole. When the user inserts the magnetic pen 1 into the charging slot 21, there is no need to align the angle; even if the magnetic pen 1 is tilted or offset, it can slide naturally into the slot through the inclined inner wall of the tapered flare, reducing the difficulty of alignment during insertion. During insertion, the magnetic pen 1 gradually adjusts its posture along the inclined surface of the tapered flare, smoothly transitioning into the lower circular straight hole.

[0034] The tapered, flared design significantly lowers the barrier to entry for the magnetic pen 1, improving ease of operation, especially suitable for one-handed operation or scenarios where the view is not focused. The smooth inner wall transition prevents jamming or collisions when inserting the magnetic pen 1, protecting the pen body and the inner wall of the charging slot 21, and extending the device's lifespan.

[0035] A circular straight hole connects to the lower part of the conical flare, extending vertically or at a slight inclination. Its inner wall maintains a uniform circular contour and smoothly connects to the bottom of the upper conical flare without obvious steps or protrusions. The length of the circular straight hole covers the effective portion of the magnetic pen 1 that needs to be charged, ensuring that after the magnetic pen 1 enters the circular straight hole, the first magnet 12 of the magnetic pen 1 can form an effective magnetic force range with the second magnet 23 of the protective sleeve 2 and the third magnet 31 of the charging plate 3.

[0036] The inner wall of the circular straight hole limits the large-scale shaking of the magnetic pen 1, keeping it within a relatively stable axial range. The angle can be freely adjusted under the action of magnetism until the charging port 13 is aligned with the charging interface 32.

[0037] The maximum diameter of the tapered flare is larger than the diameter of the magnetic pen 1, ensuring a sufficiently spacious entrance; the diameter of the circular straight hole is smaller than the maximum diameter of the tapered flare but larger than the diameter of the magnetic pen 1, forming a stepped spatial structure that is "wider at the top and more stable at the bottom". The transition between the two is treated with an arc-shaped chamfer to eliminate structural stress and further optimize the sliding path of the magnetic pen 1.

[0038] When the user inserts the magnetic pen 1, the tapered flare first reduces the difficulty of operation, and then the circular straight hole provides a stable foundation for magnetic guidance. When the magnetic pen 1 rotates within the circular straight hole, the tapered flare does not generate additional resistance or interference, ensuring that the magnetic force can efficiently drive the self-aligning process.

[0039] This combined structure balances ease of insertion with precise positioning, solving the alignment problem and providing space for the self-aligning function. Meanwhile, the stepped design creates distinct internal layers within the charging slot 21, reducing unnecessary material waste and achieving structural simplicity while maintaining functionality.

[0040] In one feasible embodiment, the through slot 22 is connected to the circular straight hole, and there are two through slots 22. The two through slots 22 are spaced apart along the length direction of the charging slot 21, and the number of second magnets 23 is the same as the number of through slots 22.

[0041] In this embodiment, two second magnets 23 provide a balanced repulsive force to drive the magnetic pen 1 to rotate. The two second magnets 23 are respectively located in through slots 22 spaced apart along the length of the charging slot 21. Since their magnetic poles facing into the charging slot 21 are the same as the magnetic poles facing outward of the first magnet 12 on the magnetic pen 1, based on the principle of like poles repelling each other, they can apply a repulsive force to the magnetic pen 1 from different positions. When the magnetic pen 1 is inserted into the charging slot 21, these two repulsive forces act on the magnetic pen 1 simultaneously, causing the magnetic pen 1 to be pushed outward in multiple directions, thus starting to rotate. This avoids the uneven force and difficulty in controlling the rotation direction that may occur when only one magnet is used.

[0042] The presence of the two second magnets 23 can work together to create a relatively stable "magnetic track" for the rotation of the magnetic pen 1. The direction of the repulsive force they generate can guide the magnetic pen 1 to rotate in a direction that is conducive to the alignment of the charging port 13 and the charging interface 32. During the rotation of the magnetic pen 1, its angle is continuously adjusted to make its rotation trajectory more regular, rather than random and disorderly. This helps the third magnet 31 to better exert its attractive effect and achieve precise alignment.

[0043] Applying repulsive force from different positions allows the magnetic pen 1 to rotate more smoothly, reducing shaking and jamming caused by uneven force. Compared to having only one second magnet 23, the magnetic pen 1 is easier to maintain balance during rotation and can be adjusted at a more stable angle within the charging slot 21. This creates favorable conditions for accurate docking of the charging port 13 and the charging interface 32, improving the reliability of the entire charging process.

[0044] In one feasible embodiment, the number of first magnets 12 on the magnetic pen 1 corresponds to the number of second magnets 23, and when the magnetic pen 1 is inserted into the charging slot 21, the positions of the first magnets 12 and the positions of the second magnets 23 are aligned.

[0045] In this embodiment, the number of first magnets 12 on the magnetic pen 1 is the same as the number of second magnets 23 in the through slot 22 of the protective sleeve 2, and they are distributed along the length of the outer wall of the magnetic pen 1. When the user inserts the magnetic pen 1 into the charging slot 21, there is no need to pay attention to the alignment of the first magnets 12 and the second magnets 23; simply insert the magnetic pen 1 normally according to the direction of the charging slot 21. After the magnetic pen 1 is inserted and the first magnets 12 and the second magnets 23 are aligned, based on the principle of like poles repulsion, a repulsive force will be generated between each pair of corresponding first magnets 12 and second magnets 23. As the magnetic pen 1 rotates in the charging slot 21, the corresponding first magnets 12 and second magnets 23 at each position always maintain a relative positional relationship, continuously exerting a repulsive force, jointly pushing the magnetic pen 1 to rotate towards the charging interface 32, making the rotation of the magnetic pen 1 more orderly and stable, and the force in each direction more balanced. There will be no situation where the local force is too large or too small due to inaccurate magnet alignment, which would affect the rotation trajectory and the final alignment of the charging port 13 and the charging interface 32.

[0046] In one feasible embodiment, the number of third magnets 31 is the same as that of second magnets 23, and the positions of the third magnets 31 are aligned with the positions of the second magnets 23.

[0047] In this embodiment, the number of third magnets 31 provided on the charging plate 3 is consistent with the number of second magnets 23 in the through groove 22 of the protective sleeve 2, and their positions correspond to each other. The third magnets 31 are arranged around the charging interface 32 on the charging plate 3. When the magnetic pen 1 is inserted into the charging slot 21 and the second magnet 23 is aligned with the first magnet 12 on the magnetic pen 1, the third magnet 31 can also be aligned with the corresponding second magnet 23 in the vertical direction.

[0048] When the magnetic pen 1 is inserted into the charging slot 21, the second magnet 23 and the first magnet 12 on the magnetic pen 1 firstly generate a repulsive force based on the principle of like poles repulsion, causing the magnetic pen 1 to start rotating. During rotation, since the third magnet 31 is aligned with the second magnet 23, and the outward magnetic pole of the third magnet 31 is opposite to the magnetic pole of the first magnet 12, an attractive force is generated. As the magnetic pen 1 rotates, each pair of corresponding second magnets 23 and third magnets 31 continuously play their roles. The repulsive force of the second magnet 23 continuously adjusts the rotation direction of the magnetic pen 1, making it rotate in a direction that facilitates the docking of the charging port 13 and the charging interface 32. The attractive force of the third magnet 31 guides the magnetic pen 1 closer to the charging interface 32. The two work together to allow the magnetic pen 1 to move more orderly and stably towards the correct target position during rotation, effectively avoiding problems such as chaotic rotation and inaccurate docking caused by uneven magnetic force or unclear guidance.

[0049] In one feasible embodiment, the fixing cavity and the through slot 22 are arranged opposite to each other, and when the charging plate 3 is fixed in the fixing cavity, the charging interface 32 protrudes out of the fixing cavity.

[0050] In this embodiment, the fixed cavity and the through groove 22 are arranged opposite to each other on the protective sleeve 2. The fixed cavity is located on one side of the charging groove 21, and the through groove 22 is perpendicular to the charging groove 21 and corresponds to the fixed cavity. After the charging plate 3 is installed into the fixed cavity, the second magnet 23 in the through groove 22 can correspond to the third magnet 31 on the charging plate 3 in the fixed cavity and the charging interface 32, which facilitates the effective transmission of magnetic force and the smooth docking of the charging interface 32 with the charging port 13 of the magnetic pen 1.

[0051] The charging interface 32 on the charging plate 3 protrudes from the fixing cavity. The charging plate 3 features a stepped design on its edge near the charging interface 32, with the charging interface 32 located on the surface of the raised portion. When the charging plate 3 is installed inside the fixing cavity, the charging interface 32 protrudes beyond the plane of the fixing cavity due to this raised structure. Simultaneously, the shape and size of the edge of the fixing cavity opening are adapted to the overall shape of the charging plate 3 and the protruding portion of the charging interface 32, ensuring that after the charging plate 3 is installed, the charging interface 32 can easily connect with the charging port 13 of the magnetic pen 1.

[0052] The design of the charging interface 32 protruding from the fixing cavity brings it closer to the charging port 13 of the magnetic pen 1 in space. This reduces the distance and angle that the magnetic pen 1 needs to adjust during rotation, making it easier and more precise for the charging port 13 and the charging interface 32 to align. Compared to situations where the charging interface 32 and the fixing cavity are on the same plane, this protruding design effectively avoids docking failures caused by slight positional deviations, improving the success rate of charging operations, greatly facilitating users' charging process, and saving charging preparation time.

[0053] In one feasible embodiment, the protective sleeve 2 is made of plastic, and the second magnet 23 is fixed in the through groove 22 by insert injection molding.

[0054] In this embodiment, the protective case 2 is made of engineering plastic, such as ABS plastic or PC plastic (this is only an example of material type and does not involve specific specifications). It can withstand the friction caused by frequent insertion and removal of the magnetic pen 1 and contact with the outside world during daily use, and is not prone to surface scratches or damage, thus ensuring the appearance integrity and structural stability of the protective case 2. The relatively lightweight plastic material makes the entire charging device less heavy to carry and use, improving the user experience.

[0055] During the manufacturing process, the second magnet 23 is fixed to the through groove 22 by insert injection molding. First, the pre-prepared second magnet 23 is placed in the corresponding position of the mold, which corresponds to the shape and size of the through groove 22. Then, plastic raw material is injected into the mold cavity. Under high temperature and high pressure, the plastic gradually fills the mold space, wrapping the second magnet 23 and making it tightly bonded to the inner wall of the through groove 22. At the same time, in order to further enhance the connection strength between the second magnet 23 and the through groove 22, some pretreatment may be performed on the surface of the second magnet 23, such as micro-roughening treatment or applying a special adhesive, so that the plastic can be more firmly bonded to the second magnet 23 after cooling and solidification, ensuring that the second magnet 23 will not loosen or fall out of the through groove 22 during long-term use.

[0056] In one feasible embodiment, the magnetic pen self-aligning charging device also includes a bracket, and the protective sleeve 2 is rotatably connected to the bracket via a pivot, the bracket being used to support and fix the protective sleeve 2.

[0057] In this embodiment, the legs at both ends of the bracket are tilted outwards to form a support angle, increasing the contact area with the placement surface, improving overall stability, and ensuring that it is not easily tipped over after placement. Rubber anti-slip pads are attached to the bottom of the legs to further enhance friction and prevent sliding on smooth surfaces such as tabletops.

[0058] At the connection point between the bracket and the rotating shaft, a bushing structure provides a rotatable connection. The bushing is made of plastic, and its inner diameter matches the outer diameter of the rotating shaft, ensuring flexible rotation of the shaft while preventing wobbling due to excessive clearance. The bushing also features an annular groove that engages with a corresponding structure on the rotating shaft, providing a certain degree of positioning and preventing detachment, ensuring the rotating shaft remains in the correct connection position throughout long-term use.

[0059] Installation method: During installation, the shaft will pass through the pre-drilled mounting holes on the protective sleeve 2 and the bracket in sequence. Ensure that the shaft fits tightly against the hole walls after installation. At the same time, screw holes or snap-fit ​​structures are provided on the protective sleeve 2 and the bracket near the mounting holes. By tightening the screws or fastening the snaps, the shaft is firmly fixed between the two, allowing the protective sleeve 2 to rotate smoothly around the shaft.

[0060] The connection points on the protective sleeve 2 with the rotating shaft are located on its side or bottom and are symmetrically distributed to ensure even force distribution during rotation, preventing any bias to one side. At the connection point, a semi-circular groove matching the shape of the rotating shaft is provided. When the shaft is installed, it forms a complete circular structure for easy rotation. A suitable amount of lubricant is applied inside the groove to further reduce friction during rotation, making the rotation of the protective sleeve 2 smoother.

[0061] When a user wants to adjust the angle of the protective case 2, such as adjusting the magnetic pen 1 to a more convenient angle for checking the charging status or for easy handling, simply hold the protective case 2 gently and apply a suitable rotational force. The protective case 2 will then rotate smoothly around the pivot. Furthermore, the protective case 2 can be flexibly rotated to any suitable angle according to actual needs, making operation convenient.

[0062] When the protective case 2 with the magnetic pen 1 is placed on a flat surface such as a desktop using the stand, the stand, with its stable structure and anti-slip design on the bottom, can be firmly fixed in place, providing solid support for the entire charging device. Even if there are slight vibrations or accidental bumps to the table, the stand can ensure that the protective case 2 and the magnetic pen 1 remain stable, preventing them from tipping over or shifting and affecting charging, thus ensuring that the charging process can continue and remain stable.

[0063] The rotating protective sleeve 2, connected by a hinge, greatly increases the flexibility of the entire charging device. Users can freely adjust the angle of the magnetic pen 1 according to their personal viewing angle, usage habits, and specific usage environment, making operations such as checking the charging status and plugging / unplugging the magnetic pen 1 more convenient, effectively improving user convenience and comfort.

[0064] Harmonious Appearance: From an appearance design perspective, this structure with a stand and a rotatable protective cover makes the entire charging device look more refined and orderly. The coordination between the various parts appears natural and smooth, enhancing the overall aesthetics of the product and meeting the aesthetic needs of modern users for the appearance design of electronic products.

[0065] This application also discloses an electronic device that integrates the aforementioned magnetic pen self-centering charging device. Integrating the magnetic pen self-centering charging device into the electronic device achieves a unified charging function between the device and the magnetic pen 1, reducing the number of additional accessories the user needs to carry and making the overall usage scenario simpler and more efficient. Even after integrating the charging device, the electronic device maintains good portability and does not become overly bulky or cumbersome due to the added charging function, making it convenient for users to carry and use in different situations, thus improving the overall user experience.

[0066] This integration allows for better coordination between the charging of the magnetic pen 1 and the use of electronic devices. Users can charge the magnetic pen 1 at any time while using electronic devices without interrupting their current operation to find an external charging device, saving time and effort. Furthermore, the storage, retrieval, and charging of the magnetic pen 1 are designed for ease of use, further improving the efficiency of using both the magnetic pen 1 and electronic devices and meeting the comprehensive needs of users for both electronic devices and the magnetic pen 1's functions in diverse scenarios.

[0067] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A magnetic pen self-aligning charging device, characterized in that, include: A magnetic pen has a first through hole on its outer side wall, a first magnet is embedded in the first through hole and the outer surface of the first magnet is flush with the outer side wall of the magnetic pen, and a charging port is provided on the magnetic pen. The protective case has a charging slot for accommodating the magnetic pen and providing space for the pen to rotate. A through slot communicating with the charging slot is provided on the outer wall of the protective case. A second magnet is fixedly installed in the through slot, wherein the magnetic poles of the second magnet facing inwards from the charging slot are the same as the magnetic poles of the first magnet facing outwards. The protective case also has a fixing cavity communicating with the charging slot. A charging plate is disposed in the fixed cavity. The charging plate is provided with a charging interface. A third magnet is disposed near the charging interface. The outward magnetic pole of the third magnet is opposite to the magnetic pole of the first magnet. When the magnetic pen is inserted into the charging slot, it rotates within the charging slot under the combined force of the repulsive force of the second magnet and the attractive force of the third magnet, so that the charging port is aligned with the charging interface.

2. The magnetic pen self-aligning charging device as described in claim 1, characterized in that, The upper part of the charging slot is a tapered flare, which is arranged outward in a divergent manner, and the maximum diameter of the tapered flare is greater than the diameter of the magnetic pen. The lower part of the charging slot is a circular straight hole, the diameter of which is larger than the diameter of the magnetic pen and smaller than the maximum diameter of the tapered flare.

3. The magnetic pen self-aligning charging device as described in claim 2, characterized in that, The through slot is connected to the circular straight hole. There are two through slots, which are spaced apart along the length of the charging slot. The number of the second magnets is the same as the number of through slots.

4. The magnetic pen self-aligning charging device as described in claim 3, characterized in that, The number of first magnets on the magnetic pen corresponds to the number of second magnets. When the magnetic pen is inserted into the charging slot, the positions of the first magnets and the second magnets are aligned.

5. The magnetic pen self-aligning charging device as described in claim 3, characterized in that, The number of third magnets is the same as that of the second magnets, and the position of the third magnets is aligned with the position of the second magnets.

6. The self-aligning charging device for a magnetic pen as described in claim 1, characterized in that, The fixed cavity is disposed opposite to the through slot. When the charging board is fixed in the fixed cavity, the charging interface protrudes from the fixed cavity.

7. The self-aligning charging device for a magnetic pen as described in claim 1, characterized in that, The protective sleeve is made of plastic, and the second magnet is fixed in the through groove by insert injection molding.

8. The self-aligning charging device for a magnetic pen as described in claim 1, characterized in that, The magnetic pen self-aligning charging device also includes a bracket, and the protective cover is rotatably connected to the bracket via a pivot, the bracket being used to support and fix the protective cover.

9. An electronic device, characterized in that, It integrates a magnetic pen self-aligning charging device as described in any one of claims 1-8.

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