First electronic device and charging system

Abstract

The application provides a first electronic device and a charging system, and relates to the technical field of wireless charging. The first electronic device comprises a first electromagnetic functional component, a first shell, and a second electronic device. The first electromagnetic functional component comprises a first part and a second part, and the length directions of the first part and the second part are arranged along a first direction respectively. The first shell comprises a first side wall extending along a second direction, and the first side wall is used for contact connection with a second side wall of the second electronic device. The end portions of the first part and the second part are arranged towards the first side wall for energy transmission, and the first direction and the second direction satisfy a perpendicular condition.

Description

Technical Field

[0001] This application relates to the field of wireless charging technology, and more particularly to a first electronic device and charging system. Background Technology

[0002] Currently, the wireless charging methods used in tablets and styluses suffer from poor magnetic circuit design, resulting in severe magnetic flux leakage and low charging efficiency. Utility Model Content

[0003] This application provides a first electronic device, comprising: a first electromagnetic functional component, including a first part and a second part, wherein the length directions of the first part and the second part are respectively arranged along a first direction; a first housing, the first housing including a first sidewall extending along a second direction, the first sidewall being used for contact connection with a second sidewall of the second electronic device; wherein the ends of the first part and the second part are both arranged toward the first sidewall for energy transmission, and the first direction and the second direction satisfy a perpendicular condition.

[0004] In some embodiments of this application, the first sidewall is provided with a first opening and a second opening, the first opening being provided at the end of the first part, the second opening being provided at the end of the second part, and the size of the first opening being adapted to the size of the end of the first part, and the size of the second opening being adapted to the size of the end of the second part.

[0005] In some embodiments of this application, the first housing is a metal housing, the first opening and the second opening are capable of allowing the energy to pass through, and the metal housing shields the energy.

[0006] In some embodiments of this application, the first electromagnetic functional component further includes a third part, which is disposed along the second direction and is connected to an electromagnetic energy exchange component.

[0007] In some embodiments of this application, the first part includes a first ferrite and a first coil, the second part includes a second ferrite and a second coil, and the third part includes a third ferrite and a third coil; the first ferrite, the second ferrite, and the third ferrite form an integrated structure, and the first coil, the second coil, and the third coil are interconnected.

[0008] In some embodiments of this application, the first electronic device further includes: a pair of first magnetic components, the pair of first magnetic components being disposed opposite to each other on both sides of the first electromagnetic functional component along the second direction, the first magnetic components being used to generate a force with the second magnetic components of the second electronic device to make the first sidewall contact and connect with the second sidewall.

[0009] In some embodiments of this application, the first electronic device further includes a sensing component disposed between the first portion and the second portion, the sensing component being used to implement a preset function of the first electronic device.

[0010] In some embodiments of this application, the first part, the third part, and the second part form a U-shaped structure.

[0011] In some embodiments of this application, the first electronic device is one of a display device or a stylus; the second electronic device is the other of the display device or the stylus.

[0012] This application also provides a charging system, including the first electronic device provided above, which is one of a display device or a stylus; and a second electronic device, which is the other of the display device or the stylus; the display device charges the stylus. Attached Figure Description

[0013] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, with the same or corresponding reference numerals denoteing the same or corresponding parts, wherein:

[0014] Figure 1 A schematic diagram illustrating the charging connection between a tablet computer and a stylus in the relevant technology is shown.

[0015] Figure 2 A schematic diagram of the structure of the first electronic device provided in an embodiment of this application is shown.

[0016] Figure 3 A schematic diagram illustrating the structure of a first electromagnetic functional component in a first electronic device provided in an embodiment of this application is shown.

[0017] Figure 4 The diagram illustrates a first electronic device provided in this application, where the first housing has a first opening and a second opening.

[0018] Figure 5 A schematic diagram of the structure of the charging system provided in an embodiment of this application is shown.

[0019] Explanation of icon numbers:

[0020] 1. First electromagnetic functional component; 101. First part; 101a. First ferrite; 101b. First coil; 102. Second part; 102a. Second ferrite; 102b. Second coil; 103. Third part; 103a. Third ferrite; 103b. Third coil; 2. First housing; 201. First sidewall; 202. First opening; 203. Second opening; 3. First magnetic attraction component; 4. Sensing component; 5. Electromagnetic energy exchange component;

[0021] 10. First electronic device; 20. Second electronic device; 21. Second electromagnetic functional component; 22. Second housing; 23. Second sidewall; 24. Second magnetic attraction component;

[0022] 100, Tablet PC; 1001, First wireless charging structure; 200, Stylus; 2001, Second wireless charging structure. Detailed Implementation

[0023] Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this application and to fully convey the scope of this application to those skilled in the art.

[0024] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains.

[0025] In related technologies, such as Figure 1 As shown, some products have adopted the principle of electromagnetic induction to achieve wireless charging between the tablet computer 100 and the stylus 200. For example, a transmitting coil and a first wireless charging structure 1001 are set inside the tablet computer 100, and a second wireless charging structure 2001 is set inside the stylus 200. When the two are close to each other, energy is transferred through electromagnetic coupling.

[0026] However, in existing wireless charging structures, the first wireless charging structure 1001 and the second wireless charging structure 2001 are typically arranged in parallel when aligned, resulting in an unreasonable path for magnetic flux during transmission from the transmitter to the receiver. Some magnetic flux fails to couple effectively to the receiving coil, instead diffusing or leaking, leading to decreased magnetic flux utilization and a significant reduction in transmission efficiency. This problem not only affects energy conversion efficiency, causing slower charging speeds, but also increases unnecessary energy loss, making it difficult to meet users' demands for efficient and fast charging.

[0027] To address the aforementioned issues, this application provides a first electronic device that optimizes the magnetic circuit design and changes the transmission direction of magnetic flux, enabling it to be more directly guided to the receiving coil at the end of the stylus, thereby improving magnetic coupling efficiency, reducing energy loss during charging, and enhancing overall charging performance.

[0028] Example 1

[0029] This application provides a first electronic device, such as... Figures 2 to 5 As shown, it includes: a first electromagnetic functional component 1, including a first part 101 and a second part 102, the length directions of the first part 101 and the second part 102 are respectively arranged along a first direction; a first housing 2, the first housing 2 including a first sidewall 201 extending along a second direction, the first sidewall 201 being used for contact connection with the second sidewall 23 of the second electronic device; wherein, the ends of the first part 101 and the second part 102 are both arranged toward the first sidewall 201 for energy transmission, and the first direction and the second direction satisfy the perpendicular condition.

[0030] The embodiments of this application provide a first electronic device, which can be a tablet computer, a smart terminal, or other electronic devices with wireless charging transmission function, for wirelessly transmitting energy to a second electronic device, which can be a stylus, a stylus, etc.

[0031] The first electronic device includes a first electromagnetic functional component 1 and a first housing 2. The first electromagnetic functional component 1 may be a magnetoelectric conversion functional component, such as including a transmitting coil and a matching magnetically conductive material. The first housing 2 may be a protective housing outside the first electronic device, used to provide protection for the first electromagnetic functional component 1 or other functional components inside. The first electromagnetic functional component 1 includes a first part 101 and a second part 102. The extending directions of the first part 101 and the second part 102, i.e., the length directions, are respectively arranged along a first direction, forming a symmetrical structure.

[0032] The first housing 2 has a first sidewall 201 extending along a second direction. The first sidewall 201 can form the side edge of the first electronic device, used for contact connection with the second sidewall 23 of the second electronic device to achieve positioning and magnetic circuit docking. In this embodiment, the first direction and the second direction are perpendicular, that is, the length direction of the first part 101 and the second part 102 is perpendicular to the extension direction of the first sidewall 201. Furthermore, the ends of the first part 101 and the second part 102 are both oriented towards the first sidewall 201, that is, their magnetic circuit output ends face the inner surface or edge area of ​​the sidewall. When the second electronic device is close to or attached to the first sidewall 201, its internal second electromagnetic functional component 21 can form a magnetic circuit docking with the first part 101 and the second part 102. Since the output direction of the magnetic flux changes from the traditional parallel coupling to an output perpendicular to the sidewall direction, the magnetic lines of force can enter the second electromagnetic functional component 21 of the second electronic device more directly, forming a highly efficient closed magnetic circuit.

[0033] The first electronic device provided in this application optimizes the magnetic flux transmission direction by arranging the first portion 101 and the second portion 102 of the first electromagnetic functional component 1 along a first direction, with its ends facing the first sidewall 201 extending along a second direction, and the first direction being perpendicular to the second direction. This allows the magnetic flux to be output along a direction perpendicular to the first sidewall 201, enabling more direct coupling to the second electromagnetic functional component 21 of the second electronic device. This reduces magnetic flux diffusion and leakage, enhances the magnetic coupling strength between the transmitter and receiver, thereby improving energy conversion efficiency and reducing charging losses.

[0034] In some embodiments, such as Figure 4 As shown, the first sidewall 201 is provided with a first opening 202 and a second opening 203. The first opening 202 is provided at the end of the first part 101, and the second opening 203 is provided at the end of the second part 102. The size of the first opening 202 is adapted to the size of the end of the first part 101, and the size of the second opening 203 is adapted to the size of the end of the second part 102.

[0035] The first opening 202 and the second opening 203 penetrate the first sidewall 201 to form a magnetic circuit outlet. The first opening 202 is located at the corresponding end of the first part 101 to expose the magnetic pole surface of the first part 101. The second opening 203 is located at the corresponding end of the second part 102 to correspondingly expose the magnetic pole surface of the second part 102. This achieves face-to-face alignment, increasing the output area of ​​magnetic flux. The shapes of the first opening 202 and the second opening 203 can be circular, square, elongated, etc. The size of the first opening 202 is adapted to the outline size of the end of the first part 101, and the size of the second opening 203 is adapted to the outline size of the end of the second part 102. This maximizes the magnetic flux output area while avoiding excessively large openings that would reduce the structural strength of the first housing 2.

[0036] By providing a first opening 202 and a second opening 203 on the first sidewall 201 that correspond one-to-one with the ends of the first part 101 and the second part 102, and adapting the opening size to the size of the magnetic pole surface, not only is the obstruction of the magnetic circuit by the first housing 2 reduced, allowing the magnetic flux to be output more smoothly and vertically to the second electronic device, significantly reducing magnetic resistance and improving energy transmission efficiency, but the adapted opening size can also reduce the weakening of the structure of the first housing 2 while ensuring performance, which is beneficial to maintaining the mechanical strength of the first sidewall 201.

[0037] In some embodiments, non-metallic fillers, such as plastic or ceramic materials, may be provided in the first opening 202 and the second opening 203 for sealing protection, so as to maintain the magnetic circuit and meet the requirements of dustproof, waterproof and appearance.

[0038] In some embodiments, the first housing 2 is a metal housing, and the first opening 202 and the second opening 203 allow energy to pass through while the metal housing shields the energy.

[0039] The first housing 2 can be made of metallic materials, such as aluminum alloy, stainless steel, or magnesium alloy, which have excellent mechanical strength, heat dissipation performance, and aesthetic appeal. However, metallic materials have a shielding effect on electromagnetic fields, reflecting or absorbing magnetic flux, hindering the penetration of wireless energy, and thus affecting charging efficiency.

[0040] To address the aforementioned issues, this embodiment of the application provides a first opening 202 and a second opening 203 on the first sidewall 201 of the metal casing, forming a non-metallic passage. The first opening 202 corresponds to the end of the first portion 101 of the first electromagnetic functional component 1, and the second opening 203 corresponds to the end of its second portion 102. When the first electronic device and the second electronic device are connected, the magnetic flux of the first electronic device is emitted from both ends of the first electromagnetic functional component 1, directly transmitted to the external space via the first opening 202 and the second opening 203, and coupled to the second electromagnetic functional component 21 within the second electronic device, achieving efficient wireless power transmission.

[0041] By creating the aforementioned openings at predetermined locations on the metal casing, magnetic field lines can be guided to concentrate and be emitted vertically outward from these two channels, forming a directional magnetic flux path. Except for the opening areas, the remaining metal portions of the first casing 2 effectively shield the magnetic flux from diffusing in other directions, thereby confining the magnetic field within a set range and preventing energy leakage into the first electronic device or other non-target areas. This not only prevents localized overheating caused by magnetic field dispersion but also maximizes the structural integrity of the metal casing while meeting the requirements for wireless energy transmission, thus improving the mechanical strength of the first casing 2.

[0042] In some embodiments, such as Figure 3 As shown, the first electromagnetic functional component 1 also includes a third part 103, which is arranged along the second direction and is connected to the electromagnetic energy exchange component 5.

[0043] The first electromagnetic functional component 1 includes not only a first portion 101 and a second portion 102 extending along a first direction, but also a third portion 103. The third portion 103 extends along a second direction and is perpendicular to the extending directions of the first portion 101 and the second portion 102. Because the third portion 103 is arranged in a vertical direction, its magnetic flux output direction can spatially complement that of the first portion 101 and the second portion 102, which helps to enhance the overall magnetic flux density and improve the efficiency and stability of wireless power transmission.

[0044] The third part 103 can be disposed inside the first electronic device in a region away from the first sidewall 201. Its structure may include coils, magnetic materials, and corresponding circuit connection structures, and it can be connected to the electromagnetic energy exchange component 5. The electromagnetic energy exchange component 5 may be a chip, power management unit, etc. on a flexible circuit board (FPC) or printed circuit board (PCB) to realize the reception, conversion, or signal exchange of electrical energy.

[0045] By setting the third part 103, it not only forms a complete magnetic circuit structure together with the first part 101 and the second part 102, but also realizes the input and output of energy or signals through the connection with the internal circuit of the first electronic device, thereby further improving the integration of the first electronic device.

[0046] In some embodiments, such as Figure 3 As shown, the first part 101 includes a first ferrite 101a and a first coil 101b, the second part 102 includes a second ferrite 102a and a second coil 102b, and the third part 103 includes a third ferrite 103a and a third coil 103b; the first ferrite 101a, the second ferrite 102a and the third ferrite 103a form an integrated structure, and the first coil 101b, the second coil 102b and the third coil 103b are interconnected.

[0047] The first ferrite 101a and the second ferrite 102a extend along a first direction, and the third ferrite 103a extends along a second direction perpendicular to the first direction, connecting the first ferrite 101a and the second ferrite 102a, thus forming a U-shaped magnetic conductive structure for the first electromagnetic functional component 1 as a whole. The first ferrite 101a, the second ferrite 102a, and the third ferrite 103a constitute an integrated magnetic conductive structure, which can be integrated into one piece through molding, sintering, or other processing techniques to form an integral ferrite core. In the core structure, the first coil 101b is wound around the first ferrite 101a, the second coil 102b is wound around the second ferrite 102a, and the third coil 103b is wound around the third ferrite 103a. The first coil 101b, the second coil 102b, and the third coil 103b can be connected in series to achieve electrical communication and to connect with an external circuit to transmit energy or signals.

[0048] Through the magnetic guiding effect of the integrated ferrite core, magnetic flux can be transmitted efficiently and continuously between the first part 101, the second part 102 and the third part 103, significantly improving the continuity, uniformity and structural stability of the magnetic circuit.

[0049] In some embodiments, such as Figure 2 As shown, the first electronic device further includes: a pair of first magnetic attraction components 3, which are disposed opposite to each other on both sides of the first electromagnetic functional component 1 along the second direction. The first magnetic attraction components 3 are used to generate a force with the second magnetic attraction component 24 of the second electronic device to make the first sidewall 201 and the second sidewall 23 contact and connect.

[0050] The first electronic device also includes a pair of first magnetic components 3, which may be permanent magnets, for cooperating with a pair of second magnetic components 24 in the second electronic device to achieve precise positioning and stable connection. The second magnetic components 24 are disposed at corresponding positions in the second electronic device, located in the region of the second sidewall 23 of its second housing 22. When the second sidewall 23 of the second electronic device is in contact with the first sidewall 201 of the first electronic device, the magnetic components of both devices can align the first electromagnetic functional component 1 and the second electromagnetic functional component 21.

[0051] By setting a pair of first magnetic components 3 arranged opposite each other along the second direction in the first electronic device, and working together with the second magnetic component 24 of the second electronic device, the generated magnetic force can guide the second electronic device to automatically align and fit tightly against the first sidewall 201. The magnetic connection forms a reliable physical fixation between the two devices, effectively resisting the influence of external forces such as shaking, vibration or falling during use, preventing accidental detachment, thereby improving the charging efficiency and stability during wireless charging.

[0052] In some embodiments, the first electronic device further includes a sensing component 4, which is disposed between the first portion 101 and the second portion 102, and is used to implement a preset function of the first electronic device.

[0053] The first electronic device also includes a sensing component 4, which is disposed in the gap region between the first part 101 and the second part 102 of the first electromagnetic functional component 1. This location is an empty space, and by placing the sensing component 4 in this space, the empty space can be effectively utilized, avoiding additional occupation of the internal volume of the first housing 2.

[0054] The sensing component 4 can be a miniature camera module, flash, earpiece, speaker, etc., and the specific type can be flexibly configured according to preset functional requirements. By embedding the sensing component 4 into the intermediate area between the first part 101 and the second part 102, multiple uses of the space are achieved in one area, eliminating the need to open a separate mounting hole or reserve dedicated space for the sensing component 4. This not only improves the utilization efficiency of the internal space of the first housing 2, but also helps to simplify the structure of the first housing 2.

[0055] In some embodiments, the first part 101, the third part 103, and the second part 102 form a U-shaped structure.

[0056] The first part 101 and the second part 102 are arranged along the first direction and are located on the two parallel arms of the U-shaped structure, respectively. The third part 103 extends along the second direction perpendicular to the first direction, connecting the first part 101 and the second part 102, forming the bottom connecting section of the U-shaped structure, and the whole forms a continuous U-shaped magnetic profile. The inner space of the U-shaped structure can partially accommodate the sensing component 4, realizing efficient use of space.

[0057] By aligning the ends of the first portion 101 and the second portion 102 of the first electromagnetic functional component 1 towards the first sidewall 201 extending along the second direction, the transmission direction of magnetic flux is optimized, enabling it to couple more directly to the second electromagnetic functional component 21 of the second electronic device. This effectively reduces magnetic flux diffusion and leakage, enhances the magnetic coupling strength between the transmitter and receiver, thereby improving energy conversion efficiency and reducing energy loss during wireless charging. Consequently, the dimensions of the U-shaped structure can be optimized, controlling its total width within the range of 10mm to 14mm. Compared to wireless charging modules with a size of up to 16mm in related technologies, the first electromagnetic functional component 1 provided in this embodiment significantly reduces the space occupied, facilitating a compact design of the internal layout of the first electronic device.

[0058] In some embodiments, the first electronic device is one of a display device or a stylus; the second electronic device is the other of a display device or a stylus.

[0059] The first electronic device and the second electronic device are respectively a display device (such as a tablet computer, smart display, 2-in-1 laptop, etc.) and a stylus (such as an active capacitive pen, stylus, digital pen, etc.). When the first electronic device is a display device, the second electronic device corresponds to a stylus; conversely, when the first electronic device is a stylus, the second electronic device is a display device, achieving bidirectional adaptation.

[0060] The first housing 2 of the first electronic device has a first sidewall 201 extending along a second direction, which integrates a first electromagnetic functional component 1 and a pair of first magnetic components 3. The second housing 22 of the second electronic device has a corresponding second sidewall 23 extending along the second direction, which integrates a second electromagnetic functional component 21 and a pair of second magnetic components 24. The first electromagnetic functional component 1 and the second electromagnetic functional component 21 can have identical structures, thereby further improving charging efficiency. In practical applications, the display device can provide wireless charging energy to the stylus and achieve automatic attachment and precise positioning through the magnetic components.

[0061] The first electronic device provided in this application embodiment is not limited to a single energy transmission direction. It supports the display device charging the stylus, as well as reverse energy transmission or other functional interactions. It has good versatility and flexibility and can be widely used in various application scenarios of display devices, styluses and their combinations.

[0062] Example 2

[0063] Embodiment 2 of this application provides a charging system, such as Figure 5As shown, it includes a first electronic device 10 provided in Embodiment 1, which is one of a display device or a stylus; a second electronic device 20, which is the other of a display device or a stylus; and the display device charges the stylus.

[0064] The first electronic device 10 can be either a display device (such as a tablet computer, smart display, 2-in-1 laptop, etc.) or a stylus (such as an active capacitive pen, stylus, digital pen, etc.), while the second electronic device 20 is another type of device. That is, the two are paired devices and together form a detachable magnetic wireless charging combination.

[0065] The display device acts as the main charging device, providing wireless power to the stylus and enabling automatic charging. The first electromagnetic functional component 1 inside the display device corresponds to the second electromagnetic functional component 21 inside the stylus. The first electromagnetic functional component 1 and the second electromagnetic functional component 21 have identical structures, and a pair of openings corresponding to the ends of the second electromagnetic functional component 21 can also be provided on the second sidewall 23 of the second electronic device 20. Magnetic flux is vertically output from the ends of the first portion 101 and the second portion 102 of the first electromagnetic functional component 1 on the display device side, penetrates to the external space through the first opening 202 and the second opening 203 on the first sidewall 201 of the first housing 2, and couples into the end of the second electromagnetic functional component 21 inside the stylus through the pair of openings on the second sidewall 23 of the second housing 22, thereby completing efficient energy transfer.

[0066] The charging system provided in this application effectively solves the technical problems of low wireless charging efficiency, complex structure, and large space occupation in related technologies. Through integrated electromagnetic design and magnetic positioning structure, it achieves efficient, intelligent, and reliable energy interaction between the display device and the stylus, improving the user experience.

[0067] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A first electronic device, characterized in that, include: The first electromagnetic functional component includes a first part and a second part, wherein the length directions of the first part and the second part are respectively arranged along the first direction; A first housing, the first housing including a first sidewall extending in a second direction, the first sidewall being used to contact and connect with a second sidewall of a second electronic device; The ends of the first part and the second part are both positioned toward the first sidewall for energy transmission, and the first direction and the second direction satisfy the perpendicular condition.

2. The first electronic device according to claim 1, characterized in that, The first sidewall is provided with a first opening and a second opening. The first opening is provided at the end of the first part, and the second opening is provided at the end of the second part. The size of the first opening is adapted to the size of the end of the first part, and the size of the second opening is adapted to the size of the end of the second part.

3. The first electronic device according to claim 2, characterized in that, The first housing is a metal housing, and the first opening and the second opening allow the energy to pass through, while the metal housing shields the energy.

4. The first electronic device according to claim 1, characterized in that, The first electromagnetic functional component further includes a third part, which is disposed along the second direction and is connected to an electromagnetic energy exchange component.

5. The first electronic device according to claim 4, characterized in that, The first part includes a first ferrite and a first coil; the second part includes a second ferrite and a second coil; and the third part includes a third ferrite and a third coil. The first ferrite, the second ferrite, and the third ferrite form an integrated structure, and the first coil, the second coil, and the third coil are interconnected.

6. The first electronic device according to claim 4, characterized in that, Also includes: A pair of first magnetic assemblies are disposed opposite each other on both sides of the first electromagnetic functional component along the second direction. The first magnetic assemblies are used to generate a force with the second magnetic assemblies of the second electronic device to make the first sidewall contact and connect with the second sidewall.

7. The first electronic device according to claim 4, characterized in that, Also includes: A sensing component is disposed between the first part and the second part, and the sensing component is used to implement a preset function of the first electronic device.

8. The first electronic device according to claim 4, characterized in that, The first part, the third part, and the second part form a U-shaped structure.

9. The first electronic device according to claim 1, characterized in that, The first electronic device is either a display device or a stylus; The second electronic device is either the display device or the stylus.

10. A charging system, characterized in that, include: The first electronic device according to any one of claims 1-8, wherein the first electronic device is a display device or a stylus; The second electronic device is another of the display device or the stylus; The display device charges the stylus.

Images