An electronic device

Abstract

This application relates to the field of home appliance technology and discloses an electronic device comprising: a first wearable device and a charging device. The first wearable device includes a first housing and a first charging receiving component. The first charging receiving component includes a first charging receiving coil and a second charging receiving coil. The charging device includes a base and a first charging transmitting component. The base has a first annular charging cavity inside. The first charging transmitting component includes a first charging transmitting coil and a second charging transmitting coil. At least a portion of the first charging transmitting coil overlaps with the first charging receiving coil in the circumferential direction of the first housing, and / or at least a portion of the second charging transmitting coil overlaps with the second charging receiving coil in the circumferential direction of the first housing. This application eliminates the need for alignment of the wearable device and the charging device using protrusions and recesses, facilitating charging and improving the user experience.

Description

Technical Field

[0001] This application relates to the field of electronic product technology, and more particularly to an electronic device. Background Technology

[0002] Nowadays, all kinds of consumer electronics products have entered thousands of households, and electronic products with different functions have emerged based on different user scenarios. Among them, wearable devices are becoming increasingly popular with users, such as smartwatches, smart glasses, and smart rings. Due to their unique product characteristics, smart rings can provide users with all-day health and exercise monitoring, and are gradually entering the public eye.

[0003] To facilitate charging, wearable devices can be equipped with wireless charging functionality. This can be achieved by adding a protrusion inside the wearable device, with a receiving coil placed in the protrusion. A physical limiting and fixing method is used to align the receiving coil in the protrusion with the transmitting coil in the recess of the wireless charging device, thus enabling wireless charging.

[0004] However, if the protrusion and indentation are not aligned during charging, the position of the charging base and the ring needs to be repeatedly adjusted, which is inconvenient and affects the user experience. Summary of the Invention

[0005] This application discloses an electronic device that eliminates the need for alignment of wearable devices and charging devices via protrusions and recesses, facilitating charging and improving the user experience.

[0006] To achieve the above objectives, this application discloses an electronic device, including: a first wearable device, comprising a first housing and a first charging receiving component, wherein the first housing is annular, and the first charging receiving component comprises: a first charging receiving coil and a second charging receiving coil, wherein the first charging receiving coil is disposed on the outer periphery of the first housing, and the second charging receiving coil is disposed on the inner periphery of the first housing; A charging device includes a base and a first charging transmitter assembly. The base has a first annular charging cavity inside, which is adapted to a first housing. The first charging transmitter assembly includes a first charging transmitter coil and a second charging transmitter coil. The first charging transmitter coil is arranged around the outer periphery of the first annular charging cavity, and the second charging transmitter coil is arranged around the inner periphery of the first annular charging cavity. Wherein, at least a portion of the first charging transmitting coil and the first charging receiving coil overlap in the circumferential direction of the first housing, so that when the first wearable device is placed in the first annular charging cavity, the first charging transmitting coil can cooperate with the first charging receiving coil to charge the first wearable device through the charging device, and / or at least a portion of the second charging transmitting coil and the second charging receiving coil overlap in the circumferential direction of the first housing, so that the second charging transmitting coil can cooperate with the second charging receiving coil to charge the first wearable device through the charging device.

[0007] As an optional implementation, the first charging transmitting coil is arranged around the first annular charging cavity and around the first housing.

[0008] As an alternative implementation, the second charging transmitting coil is arranged around the circumference of the first annular charging cavity.

[0009] As an optional implementation, the first wearable device further includes: a rigid-flex plate and a battery, wherein the battery and the rigid-flex plate are arranged sequentially in the first housing along the circumference of the first housing; The second charging receiving coil is disposed between the inner circumferential side of the battery and the inner circumferential side of the first housing.

[0010] As an optional implementation, the base also has a handle groove, which is disposed on the inner periphery of the first annular charging cavity and located in the area where the rigid-flexible bonding plate is located.

[0011] In some embodiments, the charging device further includes: A charging transmitter circuit board, wherein the first charging transmitter coil and the second charging transmitter coil are electrically connected to the charging transmitter circuit board respectively.

[0012] As an optional implementation, the electronic device further includes: a second wearable device, including a second housing and a second charging receiving component, the second housing being annular, the second charging receiving component being disposed inside the second housing, the second charging receiving component including a third charging receiving coil, the third charging receiving coil being disposed around the outer periphery of the second housing; The base also has a second annular charging cavity inside, which is adapted to the second housing and concentric with the first annular charging cavity. At least one of the third charging receiving coil and the first charging transmitting coil forms a closed ring, so that the first charging transmitting coil can also cooperate with the third charging receiving coil to charge the second wearable device.

[0013] As an optional implementation, the second charging receiving component further includes a fourth charging receiving coil, which is disposed around the inner circumference of the second housing. The first charging transmitter assembly further includes a third charging transmitter coil, which is disposed around the outer periphery of the second annular charging cavity. At least one of the fourth charging receiver coil and the third charging transmitter coil forms a closed ring, so that the third charging transmitter coil can cooperate with the fourth charging receiver coil to charge the second wearable device.

[0014] As an optional implementation, the charging device further includes: A magnetic suction element is disposed between the first annular charging cavity and the base plate of the base, and corresponds to the first annular charging cavity along the installation direction of the first wearable device.

[0015] As an optional implementation, the electronic device further includes: A fourth charging transmitting coil is disposed on the base plate of the base, and the fourth charging transmitting coil is used to charge external electronic devices.

[0016] As an optional implementation, both the first charging receiving coil and the second charging receiving coil are arranged along the thickness direction of the first wearable device.

[0017] Compared with the prior art, the beneficial effects of this application are: The electronic device provided in this application embodiment has a first charging receiving coil and a second charging receiving coil respectively disposed on the outer and inner circumferences of the first shell of the first wearable device. A first charging transmitting coil and a second charging transmitting coil are correspondingly disposed within the base of the charging device, surrounding the outer circumference of the first annular charging cavity. At least one of the first charging receiving coil and the first charging transmitting coil forms a closed ring, and / or at least one of the second charging receiving coil and the second charging transmitting coil forms a closed ring. This design allows the user to place the first wearable device within the first annular charging cavity without needing to perform specific angle alignment or position adjustments, achieving reliable wireless charging. This design effectively solves the problem in the prior art where repeated position adjustments are required due to misalignment of protrusions and recesses, significantly improving the convenience of charging operations and user experience. Furthermore, the dual-layer coil layout not only increases charging reliability but also increases the electromagnetic coupling area, improving charging efficiency and stability. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the electronic device disclosed in the embodiments of this application; Figure 2 This is a schematic diagram of the electronic device disclosed in the embodiments of this application from another angle; Figure 3 This is a schematic diagram of the structure of the first wearable device disclosed in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the charging device disclosed in the embodiments of this application; Figure 5 This is an exploded view of the electronic device disclosed in the embodiments of this application; Figure 6 This is a schematic diagram of the structure of the first wearable device installed in the first annular charging cavity, as disclosed in an embodiment of this application. Figure 7 This is a schematic cross-sectional view of the electronic device disclosed in the embodiments of this application; Figure 8 For this application Figure 7 Enlarged view of point A in the middle; Figure 9 This is a schematic cross-sectional view of the first wearable device disclosed in the embodiments of this application; Figure 10 This is a schematic cross-sectional view of the charging device disclosed in the embodiments of this application; Figure 11 This is a schematic diagram of the structure of a charging device with a handle groove disclosed in an embodiment of this application; Figure 12 This is a schematic cross-sectional view of an electronic device with a second wearable device disclosed in an embodiment of this application; Figure 13 This is a schematic diagram of the charging device disclosed in the embodiments of this application without the bottom plate.

[0020] Explanation of reference numerals in the attached figures: 100 - First wearable device; 11 - First housing; 12 - First charging receiver assembly; 121 - First charging receiver coil; 122 - Second charging receiver coil; 13 - Flexible and rigid bonding board; 14 - Battery; 200 - Charging device; 21 - Base; 211 - First annular charging cavity; 212 - Hand clip groove; 213 - Base body; 214 - Top plate; 215 - Bottom plate; 216 - Second annular charging cavity; 22 - First charging transmitter assembly; 221 - First charging transmitter coil; 222 - Second charging transmitter coil; 223 - Third charging transmitter coil; 23 - Charging transmitter circuit board; 24 - Magnetic component; 25 - Fourth charging transmitter coil; 300 - Second wearable device; 31 - Second housing; 32 - Second charging receiver assembly; 321 - Third charging receiver coil; 322 - Fourth charging receiver coil. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will now be clearly and completely described with reference to the accompanying drawings. The described embodiments are only a part of this application, and not all of them. Other embodiments that can be obtained by those skilled in the art without creative effort based on the content of this application are all within the protection scope of this application.

[0022] The directional or positional terms used in this application, such as "upper," "lower," "inner," and "outer," are based on the directions shown in the accompanying drawings and are used only for descriptive purposes, not to limit the actual location or structure. Some terms may have other meanings in different contexts, and those skilled in the art should understand them according to the specific context.

[0023] The terms "installation," "setup," and "connection" should be interpreted broadly, including but not limited to fixed or detachable, mechanical or electrical, direct or indirect connection methods. The terms "first," "second," etc., are used only to distinguish objects and do not indicate importance or order.

[0024] To facilitate charging, wearable devices can be equipped with wireless charging functionality. This is achieved by adding a protrusion inside the wearable device, with a receiving coil embedded in the protrusion. A physical locking mechanism is used to align the receiving coil in the protrusion with the transmitting coil in the recess of the wireless charging device for wireless charging. However, if the protrusion and recess are not aligned during charging, the positions of the charging base and the ring need to be repeatedly adjusted, which is inconvenient and affects the user experience.

[0025] Based on this, this application discloses an electronic device in which a wearable device can be charged by a charging device after being placed in the first annular charging cavity, without the need to specifically align the protrusions and recesses, which is convenient for user operation and helps to improve the user experience.

[0026] The technical solution of this application will be further described below with reference to the embodiments and accompanying drawings.

[0027] Combination Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the electronic device disclosed in the embodiments of this application. Figure 2 This is a structural schematic diagram of the electronic device disclosed in this application embodiment from another angle. This application embodiment discloses an electronic device including a first wearable device 100 and a charging device 200. The first wearable device 100 includes a first housing 11 and a first charging receiving component 12. The first housing 11 is annular. The first charging receiving component 12 includes a first charging receiving coil 121 and a second charging receiving coil 122. The first charging receiving coil 121 is disposed on the outer periphery of the first housing 11, and the second charging receiving coil 122 is disposed on the inner periphery of the first housing 11. The charging device 200 includes a base 21 and a first charging transmitting component 22. The base 21 has a first annular charging cavity 211 inside, which is adapted to the first housing 11. The first charging transmitting component 22 includes a first charging transmitting coil 221 and a second charging transmitting coil 222. A first charging transmitter coil 222 is arranged around the outer periphery of the first annular charging cavity 211, and a second charging transmitter coil 222 is arranged around the inner periphery of the first annular charging cavity 211. At least a portion of the first charging transmitter coil 221 and the first charging receiver coil 121 overlap in the circumferential direction of the first housing 11, so that when the first wearable device 100 is placed in the first annular charging cavity 211, the first charging transmitter coil 221 can cooperate with the first charging receiver coil 121 to charge the first wearable device 100 through the charging device 200. And / or at least a portion of the second charging transmitter coil 222 and the second charging receiver coil 122 overlap in the circumferential direction of the first housing 11, so that the second charging transmitter coil 222 can cooperate with the second charging receiver coil 122 to charge the first wearable device 100 through the charging device 200.

[0028] Combination Figure 3 , Figure 3 This is a schematic diagram of the structure of the first wearable device 100 disclosed in an embodiment of this application. In some embodiments, the first wearable device 100 can be an electronic ring, such as a smart ring, for wearing on a user's finger to achieve functions such as health monitoring and motion tracking. The first housing 11 adopts a ring-shaped design, which can conform to the contour of the finger and improve wearing comfort. The first charging receiving coil 121 and the second charging receiving coil 122 are respectively disposed on the outer and inner circumferences of the first housing 11, specifically inside the first housing 11. The first housing 11 can protect the first charging coil and the second charging coil, and is also more aesthetically pleasing.

[0029] Combination Figure 4 , Figure 4 This is a schematic diagram of the structure of the charging device 200 disclosed in an embodiment of this application. In some embodiments, the charging device 200 may be a charging stand (also called a charging box, which is not limited here), and the charging device 200 is used to place the first wearable device 100 and provide it with power.

[0030] Combination Figure 5 and Figure 6 , Figure 5 This is an exploded view of the electronic device disclosed in the embodiments of this application. Figure 6 This is a schematic diagram of the structure of the first wearable device 100 disclosed in this application installed in the first annular charging cavity 211. In some embodiments, the first annular charging cavity 211 inside the base 21 adopts an annular design adapted to the first housing 11, so that the first wearable device 100 can be directly embedded in the first annular charging cavity 211. The base 21 may include a base body 213, a top plate 214, and a bottom plate 215 (e.g., ...). Figure 1 , Figure 5 and Figure 6 As shown), the top plate 214 can also be called the top cover. The top plate 214 can be opened by sliding, flipping or other means to expose the opening of the first annular charging cavity 211, so that the first wearable device 100 can be put into the first annular charging cavity 211 or taken out of the first annular charging cavity 211.

[0031] Combination Figure 7 and Figure 8 , Figure 7 This is a schematic cross-sectional view of the electronic device disclosed in the embodiments of this application. Figure 8 For this application Figure 7 Enlarged view at point A. In some embodiments, at least a portion of the first charging transmitting coil 221 and the first charging receiving coil 121 overlap circumferentially in the first housing 11. This can be understood as the central angle corresponding to the first charging receiving coil 121 being α, and the central angle corresponding to the first charging transmitting coil 221 being β, with the relationship between α and β satisfying: α + β > 360°. This circumferential overlap design of the first housing 11 ensures that the first charging transmitting coil 221 and the first charging receiving coil 121 can form effective electromagnetic coupling regardless of the angle at which the first wearable device 100 is placed within the first annular charging cavity 211, thus achieving charging without the need for alignment. For example, if the arc of the first charging receiving coil 121 is 300° and the arc of the first charging transmitting coil 221 is 80°, after placing the wearable device in the first annular charging cavity 211, a portion of the first charging receiving coil 121 and the first charging transmitting coil 221 will inevitably overlap, allowing the charging device 200 to charge the wearable device.

[0032] In some embodiments, at least a portion of the second charging transmitting coil 222 and the second charging receiving coil 122 overlap circumferentially in the first housing 11. This can be understood as the central angle corresponding to the first charging receiving coil 121 being γ, and the central angle corresponding to the first charging transmitting coil 221 being θ, with the relationship between γ and θ satisfying: γ + θ > 360°. This circumferential overlap design of the first housing 11 ensures that the second charging transmitting coil 222 can form effective electromagnetic coupling with the second charging receiving coil 122 regardless of the angle at which the first wearable device 100 is placed within the first annular charging cavity 211, thus achieving charging without the need for alignment.

[0033] In some embodiments, at least a portion of the first charging transmitting coil 221 and the first charging receiving coil 121 overlap circumferentially in the first housing 11, and at least a portion of the second charging transmitting coil 222 and the second charging receiving coil 122 overlap circumferentially in the first housing 11. This circumferential overlap design of the first housing 11 allows the first charging transmitting coil 221 to form effective electromagnetic coupling with the first charging receiving coil 121 regardless of the angle at which the first wearable device 100 is placed within the first annular charging cavity 211. It also allows the second charging transmitting coil 222 to form effective electromagnetic coupling with the second charging receiving coil 122. This achieves the effect of charging without alignment while simultaneously providing a dual-layer charging effect for the first wearable device 100, thereby improving charging efficiency. This dual-coil redundancy design not only further improves the reliability and stability of charging, but also ensures that even if one coil pair is slightly misaligned or the coupling is weakened, the other coil pair can still maintain normal charging function. Moreover, through the synergistic effect of the inner and outer coils, the total electromagnetic coupling area can be significantly increased, thereby achieving higher charging power and faster charging speed while ensuring the convenience of charging without alignment.

[0034] According to an embodiment of the present invention, an electronic device 100 has a first charging receiving coil 121 and a second charging receiving coil 122 respectively disposed on the outer and inner periphery of the first housing 11 of the first wearable device 100, and a first charging transmitting coil 221 surrounding the outer periphery of the first annular charging cavity 211 and a second charging transmitting coil 222 surrounding the inner periphery of the first annular charging cavity 211 are correspondingly disposed in the base 21 of the charging device 200. At least one of the first charging receiving coil 121 and the first charging transmitting coil 221 forms a closed ring, and / or at least one of the second charging receiving coil 122 and the second charging transmitting coil 222 forms a closed ring. This design allows reliable wireless charging to be achieved when the user places the first wearable device 100 in the first annular charging cavity 211 without requiring specific angle alignment or position adjustment. This design effectively solves the problem in the prior art where repeated position adjustments are required due to misalignment of protrusions and recesses, significantly improving the convenience of charging operation and user experience. Furthermore, the double-layer coil layout not only increases charging reliability but also increases the electromagnetic coupling area, improving charging efficiency and stability.

[0035] Combination Figure 7 and Figure 8 In some embodiments, the first charging transmitting coil 221 is arranged around the first annular charging cavity 211 and around the first housing 11.

[0036] Specifically, the first charging transmitting coil 221 is continuously arranged around the outer periphery of the first annular charging cavity 211, forming a complete 360-degree closed annular structure. Correspondingly, the first charging receiving coil 121 is also continuously arranged around the outer periphery of the first housing 11, forming a complete annular structure matching the first charging transmitting coil 221. This full-circumferential design ensures that regardless of the rotation angle at which the first wearable device 100 is placed within the first annular charging cavity 211, the first charging receiving coil 121 and the first charging transmitting coil 221 always maintain the largest possible electromagnetic coupling area, thereby ensuring the stability and efficiency of energy transfer during charging. Furthermore, since the coil covers the entire circumference, the user does not need to pay attention to the circumferential orientation when placing or removing the first wearable device 100, further simplifying the operation process and improving ease of use.

[0037] Combination Figure 9 , Figure 9 This is a cross-sectional structural diagram of the first wearable device 100 disclosed in an embodiment of this application. In some embodiments, the second charging transmitting coil 222 is arranged around the first annular charging cavity 211.

[0038] Specifically, the second charging transmitting coil 222 is continuously arranged around the inner circumference of the first annular charging cavity 211, forming a complete 360-degree closed ring structure. This design ensures that when the first wearable device 100 is placed inside the first annular charging cavity 211, regardless of its rotation angle, the second charging receiving coil 122 on the inner circumference and the second charging transmitting coil 222 can always maintain effective electromagnetic coupling. In this way, the charging on the inner circumference and the charging on the outer circumference cooperate to form a double-layer coil charging structure, which not only further expands the total electromagnetic coupling area and improves energy transmission efficiency and charging speed, but also enhances the reliability of the charging system through redundancy design. Even if there is a slight offset or interference on one side of the coil, the other side of the coil can still maintain a stable charging connection, ensuring that the first wearable device 100 can obtain continuous and reliable power replenishment in various usage scenarios.

[0039] Combination Figure 9 In some embodiments, the first wearable device 100 further includes a rigid-flex PCB 13 and a battery 14, wherein the battery 14 and the rigid-flex PCB 13 are arranged sequentially in the first housing 11 along the circumference of the first housing 11; wherein the second charging receiving coil 122 is disposed between the inner circumferential side of the battery 14 and the inner circumferential side of the first housing 11.

[0040] Specifically, the rigid-flex board 13 integrates core electronic components such as the main control circuit, sensor module, and communication module of the first wearable device 100. The rigid-flex design allows for complex circuit layouts and signal transmission requirements within a limited space. The battery 14, as the energy storage unit of the first wearable device 100, provides power for the device's various functions. Arranging the battery 14 and the rigid-flex board 13 sequentially along the circumference of the first housing 11 fully utilizes the annular space inside the housing, achieving a compact structural layout. This helps reduce the overall size and weight of the first wearable device 100 and improves wearing comfort. The second charging receiving coil 122 is located between the inner circumference of the battery 14 and the inner circumference of the first housing 11. Specifically, it can be arranged flush against the inner wall of the first housing 11 or with a certain gap from the inner wall. This arrangement allows the second charging receiving coil 122 to be close to the inner surface of the first housing 11, thereby shortening the distance between it and the second charging transmitting coil 222 when used with the charging device 200, reducing magnetic losses during energy transmission, and improving charging efficiency. Meanwhile, arranging the second charging receiving coil 122 in the peripheral area of ​​the battery 14 avoids electromagnetic interference from the battery 14, ensuring that the second charging receiving coil 122 can effectively receive electromagnetic energy from the second charging transmitting coil 222. Furthermore, this layered design helps optimize the space utilization inside the first housing 11, maintaining reasonable spacing between functional modules, reducing electromagnetic interference and heat accumulation, and improving the overall performance and reliability of the first wearable device 100. Moreover, the second charging receiving coil 122 can avoid the area where the rigid-flex PCB 13 is located, preventing interference with the rigid-flex PCB 13 or increasing the thickness of the wearable device, thus avoiding impacts on the miniaturization design of the wearable device.

[0041] Combination Figure 11 , Figure 11 This is a schematic diagram of the structure of a charging device 200 with a handle groove 212 disclosed in an embodiment of this application. In some embodiments, the base 21 also has a handle groove 212, which is disposed on the inner periphery of the first annular charging cavity 211 and located in the area where the rigid-flexible bonding plate 13 is located.

[0042] Specifically, a certain gap can be reserved between the first housing 11 and the first annular charging cavity 211 to facilitate the removal of the wearable device from the first annular charging cavity 211 by hand. Alternatively, a hand-holding groove 212 can be provided, which is set on the inner peripheral sidewall of the first annular charging cavity 211, recessed inward to form an operating space that facilitates finger insertion. This can reduce the gap between the inner wall of the first annular charging cavity 211 and the outer wall of the first housing 11, thereby reducing the distance between the first charging transmitting coil 221 and the first charging receiving coil 121, as well as the distance between the second charging transmitting coil 222 and the second charging receiving coil 122. Since the rigid-flexible bonding plate 13 is arranged circumferentially along the first housing 11, occupying a certain arc length area inside the first housing 11, while the battery 14 is arranged in the circumferential space outside the rigid-flexible bonding plate 13, the second charging receiving coil 122 is correspondingly set between the inner peripheral side of the battery 14 and the inner peripheral side of the first housing 11, that is, in the circumferential position outside the area where the rigid-flexible bonding plate 13 is located. Therefore, by positioning the handle groove 212 within the inner circumference of the first annular charging cavity 211 corresponding to the area of ​​the rigid-soft bonding plate 13, the structural space of this area can be fully utilized, avoiding positional conflicts with the second charging transmitting coil 222 or the second charging receiving coil 122. When the user needs to remove the first wearable device 100 from the first annular charging cavity 211, they can insert their fingers into the handle groove 212 and apply force from the inner circumference of the first housing 11 to easily lift and remove the first wearable device 100. This design conforms to ergonomic principles, providing the user with a clear position for taking out and putting out the device, avoiding the problem of difficulty in removing the first wearable device 100 due to it being deeply embedded or tightly fitted in the first annular charging cavity 211, and further improving ease of use. Meanwhile, the hand-holding groove 212 is located on the inner circumference side, corresponding to the inner circumference side of the first wearable device 100. During the user's handling process, the fingers act on the inner circumference area of ​​the first housing 11, preventing squeezing or damage to the first charging receiving coil 121 or the first charging transmitting coil 221 on the outer circumference side, thus helping to protect the integrity and lifespan of the charging components. In addition, the depth and width of the hand-holding groove 212 can be reasonably designed according to the size of the first annular charging cavity 211 and the thickness of the first wearable device 100, ensuring that the fingers can comfortably insert and apply force, while avoiding being too deep or too wide, which would affect the structural strength and aesthetics of the base 21.

[0043] Combination Figure 10 and 13 , Figure 10 This is a schematic cross-sectional view of the charging device disclosed in an embodiment of this application. Figure 13This is a schematic diagram of the charging device 200 disclosed in this application without the base plate 215. In some embodiments, the charging device 200 further includes a charging transmitter circuit board 23, with the first charging transmitter coil 221 and the second charging transmitter coil 222 electrically connected to the charging transmitter circuit board 23.

[0044] Specifically, the charging transmitter circuit board 23 can integrate power amplifier circuits, resonant circuits, and control circuits to regulate the operating state of the transmitter coils, such as adjusting output power and monitoring charging status. The charging transmitter circuit board 23 provides drive and control signals to the first charging transmitter coil 221 and the second charging transmitter coil 222, enabling independent or coordinated control of the two coils. The charging transmitter circuit board 23 can dynamically adjust the output power and operating frequency according to the charging needs of the first wearable device 100. When the first wearable device 100 is placed inside the first annular charging cavity 211, the charging transmitter circuit board 23 can identify device access by detecting changes in coil load or communication interaction, and initiate the corresponding charging process. Furthermore, the charging transmitter circuit board 23 can also achieve alternating or simultaneous driving of the first charging transmitter coil 221 and the second charging transmitter coil 222 to optimize charging efficiency and thermal management performance.

[0045] Combination Figure 12 , Figure 12 This is a cross-sectional structural diagram of an electronic device with a second wearable device 300 disclosed in an embodiment of this application. In some embodiments, the electronic device further includes: a second wearable device 300, including a second housing 31 and a second charging receiving component 32. The second housing 31 is annular, and the second charging receiving component 32 is disposed inside the second housing 31. The second charging receiving component 32 includes a third charging receiving coil 321, which is disposed around the outer periphery of the second housing 31. The base 21 also has a second annular charging cavity 216 inside. The second annular charging cavity 216 is adapted to the second housing 31 and is concentric with the first annular charging cavity 211. At least one of the third charging receiving coil 321 and the first charging transmitting coil 221 forms a closed ring, so that the first charging transmitting coil 221 can also cooperate with the third charging receiving coil 321 to charge the second wearable device 300.

[0046] Specifically, the second wearable device 300 can be a smart bracelet, a smart ring, or other form of ring-shaped wearable device. Its second housing 31 adopts a ring-shaped structure design similar to the first housing 11 of the first wearable device 100, but the size and specifications can be differentiated according to actual product needs. That is, the diameter of the second wearable device 300 can be larger or smaller than that of the first wearable device 100 to meet the wearing needs of different user groups (the first wearable device 100 can be a men's or women's ring, or a ring corresponding to different fingers, or one can be a ring and the other a bracelet, etc.). The second ring-shaped charging cavity 216 can be arranged side by side with the first ring-shaped charging cavity 211, or it can be arranged concentrically to form a nested ring-shaped charging area. When a concentric nested layout is adopted, the first ring-shaped charging cavity 211 and the second ring-shaped charging cavity 216 share the central area of ​​the base 21, making the structure more compact. Moreover, the third charging receiving coil 321 is arranged around the outer periphery of the second housing 31 to form a ring receiving structure that matches the first charging transmitting coil 221. Since the first charging transmitting coil 221 is arranged around the first annular charging cavity 211 to form a closed ring, when the second wearable device 300 is placed inside the second annular charging cavity 216, even if the second annular charging cavity 216 and the first annular charging cavity 211 are arranged concentrically or adjacently, the annular magnetic field distribution of the first charging transmitting coil 221 can still cover the area where the second annular charging cavity 216 is located, so that an effective electromagnetic coupling is formed between the third charging receiving coil 321 and the first charging transmitting coil 221. This design realizes the reuse of the charging device 200, that is, the same first charging transmitting coil 221 can charge the first charging receiving coil 121 on the outer periphery of the first wearable device 100, and can also charge the third charging receiving coil 321 of the second wearable device 300. There is no need to configure a separate transmitting coil for wearable devices of different sizes, which simplifies the internal structure of the charging device 200 and reduces production costs and hardware complexity. Meanwhile, since the first charging transmitting coil 221 adopts a closed ring design, the second wearable device 300 does not need to be aligned at an angle when placed in the second annular charging cavity 216, further improving the convenience of charging operation and the versatility of the device. It is worth noting that the setting of the second annular charging cavity 216 in this application not only simply adds the charging function of the second wearable device 300, but also makes full use of the first charging transmitting coil 221, enabling the first charging transmitting coil 221 to achieve "dual use". It can not only charge the first wearable device 100, but also charge the second wearable device 300. This not only saves costs, but also facilitates the miniaturization design of the charging device 200.

[0047] Combination Figure 12In some embodiments, the second charging receiving component 32 further includes a fourth charging receiving coil 322, which is disposed around the inner periphery of the second housing 31; the first charging transmitting component 22 further includes a third charging transmitting coil 223, which is disposed around the outer periphery of the second annular charging cavity 216. At least one of the fourth charging receiving coil 322 and the third charging transmitting coil 223 forms a closed ring, so that the third charging transmitting coil 223 can cooperate with the fourth charging receiving coil 322 to charge the second wearable device 300.

[0048] Specifically, the second wearable device 300 can be charged using only the first charging transmitting coil 221 and the third charging receiving coil 321, or a fourth charging receiving coil 322 and a third charging transmitting coil 223 can be added. The fourth charging receiving coil 322 is continuously arranged around the inner circumference of the second housing 31, forming a complete 360-degree closed ring structure or a nearly closed ring structure, which together with the third charging receiving coil 321 arranged around the outer circumference of the second housing 31 constitutes the inner and outer double-layer receiving coil system of the second wearable device 300. Correspondingly, the third charging transmitting coil 223 is continuously arranged around the outer circumference of the second annular charging cavity 216, forming a closed annular transmitting structure that matches the fourth charging receiving coil 322. This design allows the second wearable device 300, when placed within the second annular charging cavity 216, to simultaneously achieve effective electromagnetic coupling between the third charging receiving coil 321 on the outer periphery and the first charging transmitting coil 221, and between the fourth charging receiving coil 322 on the inner periphery and the third charging transmitting coil 223, regardless of its rotation angle. This enables redundant charging on both the inner and outer sides. By also configuring the second wearable device 300 with inner and outer dual-layer charging receiving coils and correspondingly setting the third charging transmitting coil 223 within the base 21, the compatibility and charging efficiency of the charging device 200 can be further expanded. When the first wearable device 100 and the second wearable device 300 are simultaneously placed on the base 21, the first charging transmitting coil 221 can simultaneously provide charging energy to the first charging receiving coil 121 of the first wearable device 100 and the third charging receiving coil 321 of the second wearable device 300, while the second charging transmitting coil 222 and the third charging transmitting coil 223 independently power the inner periphery coils of the two devices, enabling parallel charging of multiple devices. This layered, nested coil layout makes full use of the space inside the base 21. Through a reasonable magnetic field distribution design, electromagnetic interference between different coils can be effectively avoided, ensuring the independence and stability of each charging channel. Furthermore, the paired design of the third charging transmitting coil 223 and the fourth charging receiving coil 322 allows the second wearable device 300 to achieve the same level of charging convenience and reliability as the first wearable device 100, even when placed alone in the second annular charging cavity 216. Users do not need to distinguish between dedicated charging positions for different sized devices, nor do they need to perform cumbersome alignment; they can simply place the annular wearable device into the corresponding annular charging cavity to complete the charging process. This highly universal charging solution significantly reduces the user's learning curve, enhances product usability and market competitiveness, and also reserves ample hardware compatibility space for future expansion to more sizes of wearable devices.

[0049] Combination Figure 13In some embodiments, the charging device 200 further includes a magnetic suction member 24, which is disposed between the first annular charging cavity 211 and the base plate 215 of the base 21, and corresponds to the first annular charging cavity 211 along the installation direction of the first wearable device 100.

[0050] Specifically, the charging device 200 can be placed flat with the opening of the first annular charging cavity 211 facing upwards, allowing the first wearable device 100 to enter the first annular charging cavity 211 under gravity. Alternatively, it can be pushed by hand, or magnetic suction components 24 can be used for magnetic adsorption. The magnetic suction components 24 can be permanent magnets or electromagnets, evenly distributed or continuously arranged along the circumference of the first annular charging cavity 211, forming a magnetic suction area that matches the annular contour of the first wearable device 100. When the first wearable device 100 is placed in the first annular charging cavity 211, the magnetic field generated by the magnetic suction components 24 attracts the magnetically conductive material or the associated adsorbed component within the first housing 11. This causes the first wearable device 100 to sink naturally under gravity while simultaneously being subjected to a downward magnetic force, thus stably adhering to the bottom positioning surface of the first annular charging cavity 211. This magnetic positioning mechanism effectively compensates for gap issues caused by manufacturing tolerances or placement posture deviations, ensuring optimal coupling spacing between the first charging transmitting coil 221 and the first charging receiving coil 121, and between the second charging transmitting coil 222 and the second charging receiving coil 122, reducing energy transmission loss and efficiency degradation caused by excessive air gaps. Simultaneously, the magnetic attraction of the magnetic component 24 prevents the first wearable device 100 from shifting or detaching during charging due to external vibration, tilting, or accidental contact, maintaining a stable charging connection and avoiding charging interruptions or repeated reconnections due to poor contact. The magnetic component 24 is arranged along the mounting direction of the first wearable device 100, corresponding to the first annular charging cavity 211. This means that the magnetic component 24 is located vertically below the first annular charging cavity 211, and its magnetic field covers the entire depth of the first annular charging cavity 211. This allows the first wearable device 100 to experience gradually increasing magnetic attraction at any height during placement, achieving smooth adaptive positioning. Furthermore, the magnetic attraction force of the magnetic component 24 can be rationally designed according to the weight and size of the first wearable device 100. This ensures sufficient holding force to overcome disturbances during daily use, while avoiding excessive magnetic force that could lead to difficulty in placement or pinching of fingers. In some implementations, the magnetic component 24 can employ a multi-pole magnetization design to make the magnetic field distribution more uniform, reducing magnetic interference to surrounding electronic components. Alternatively, it can work in conjunction with detection elements such as Hall sensors to achieve automatic device placement recognition and charging initiation functions, further enhancing the intelligence level of the charging device 200 and the user experience.

[0051] Combination Figure 13In some embodiments, a fourth charging transmitting coil 25 is disposed on the base plate 215 of the base 21, and the fourth charging transmitting coil 25 is used to charge external electronic devices.

[0052] Specifically, the external electronic device can be a mobile terminal, such as a mobile phone or tablet computer. The fourth charging transmitting coil 25 can be located in the central area of ​​the base plate 215 of the base 21 or on other flat surfaces of the base plate 215, arranged in a planar spiral structure or planar array structure to form a transmitting magnetic field area facing upwards from the base 21. This coil can share the charging transmitting circuit board 23 with the first charging transmitting coil 221, the second charging transmitting coil 222, and the third charging transmitting coil 223, achieving coordinated operation of multiple coils through circuit switching or power distribution mechanisms. Alternatively, it can be configured with an independent drive circuit for individual control. When the user places an external electronic device such as a mobile phone on top of the base 21, the fourth charging transmitting coil 25 forms electromagnetic coupling with the receiving coil inside the device, realizing wireless power transmission. This design makes full use of the unused space of the base plate 215 of the base 21, expanding the application scenarios and practical value of the charging device 200 without affecting the normal function of the annular charging cavity. Users do not need to prepare multiple dedicated chargers; a single base 21 can simultaneously meet the charging needs of both ring-shaped wearable devices and regular consumer electronics, significantly reducing desktop cables and improving the neatness and convenience of charging management. Furthermore, the placement of the fourth charging transmitter coil 25 can form a reasonable spatial layout with the first ring-shaped charging cavity 211 and the second ring-shaped charging cavity 216. For example, the fourth charging transmitter coil 25 can be placed in the central blank area of ​​the concentric ring-shaped charging cavity, or in the edge extension area of ​​the base plate 215 of the base 21, ensuring that different charging areas do not overlap horizontally and avoiding electromagnetic interference. Moreover, the magnetic suction component 24 is located between the first ring-shaped charging cavity 211 and the base plate 215 of the base 21, and can be positioned close to the base plate 215, allowing the magnetic suction component 24 to also attract external electronic devices, achieving "multi-purpose use," improving the user experience while making full use of the existing structure and saving costs.

[0053] In some embodiments, the first charging receiving coil 121 and the second charging receiving coil 122 are both arranged along the thickness direction of the first wearable device 100.

[0054] Specifically, the thickness direction of the first charging receiving coil 121 and the second charging receiving coil 122 refers to the direction perpendicular to the annular surface of the first housing 11. That is, if the first housing 11 is a horizontally placed ring, then the coil planes of the first charging receiving coil 121 and the second charging receiving coil 122 are approximately in a vertical plane, surrounding the outer and inner circumferences of the first housing 11. This arrangement along the thickness direction ensures that the magnetic field direction of the coils is mainly distributed radially along the first wearable device 100, which better matches the magnetic field direction of the first charging transmitting coil 221 and the second charging transmitting coil 222, which are also arranged along the thickness direction (i.e., perpendicular to the upper surface of the base 21). When the first wearable device 100 is placed in the first annular charging cavity 211, the magnetic field directions of the transmitting coil and the receiving coil are basically consistent, maximizing the electromagnetic coupling efficiency.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and do not constitute a limitation. The embodiments can be freely combined without conflict. Although each embodiment has been described in detail, those skilled in the art should understand that modifications can still be made to the technical solutions or equivalent substitutions can be made to the technical features, and all such modifications or substitutions should be covered within the scope of the technical solutions of this application.

Claims

1. An electronic device, characterized in that, include: A first wearable device (100) includes a first housing (11) and a first charging receiving component (12). The first housing (11) is annular. The first charging receiving component (12) includes a first charging receiving coil (121) and a second charging receiving coil (122). The first charging receiving coil (121) is disposed on the outer periphery of the first housing (11), and the second charging receiving coil (122) is disposed on the inner periphery of the first housing (11). A charging device (200) includes a base (21) and a first charging transmitter assembly (22). The base (21) has a first annular charging cavity (211) inside, which is adapted to the first housing (11). The first charging transmitter assembly (22) includes a first charging transmitter coil (221) and a second charging transmitter coil (222). The first charging transmitter coil (221) is arranged around the outer periphery of the first annular charging cavity (211), and the second charging transmitter coil (222) is arranged around the inner periphery of the first annular charging cavity (211). Wherein, at least a portion of the first charging transmitting coil (221) and the first charging receiving coil (121) overlap in the circumferential direction of the first housing (11), so that when the first wearable device (100) is placed in the first annular charging cavity (211), the first charging transmitting coil (221) can cooperate with the first charging receiving coil (121) to charge the first wearable device (100) through the charging device (200), and / or at least a portion of the second charging transmitting coil (222) and the second charging receiving coil (122) overlap in the circumferential direction of the first housing (11), so that the second charging transmitting coil (222) can cooperate with the second charging receiving coil (122) to charge the first wearable device (100) through the charging device (200).

2. The electronic device according to claim 1, characterized in that, The first charging transmitting coil (221) is arranged around the first annular charging cavity (211) and around the first housing (11).

3. The electronic device according to claim 2, characterized in that, The second charging transmitting coil (222) is arranged around the first annular charging cavity (211).

4. The electronic device according to claim 1, characterized in that, The first wearable device (100) further includes: a rigid-flex plate (13) and a battery (14), wherein the battery (14) and the rigid-flex plate (13) are arranged sequentially in the first housing (11) along the circumference of the first housing (11); The second charging receiving coil (122) is disposed between the inner circumferential side of the battery (14) and the inner circumferential side of the first housing (11).

5. The electronic device according to claim 4, characterized in that, The base (21) also has a handle groove (212), which is located on the inner periphery of the first annular charging cavity (211) and in the area where the rigid-soft bonding plate (13) is located.

6. The electronic device according to claim 1, characterized in that, The charging device (200) also includes: The charging transmitter circuit board (23) is electrically connected to the first charging transmitter coil (221) and the second charging transmitter coil (222).

7. The electronic device according to any one of claims 1-6, characterized in that, The electronic device also includes: The second wearable device (300) includes a second housing (31) and a second charging receiving component (32). The second housing (31) is annular, and the second charging receiving component (32) is disposed inside the second housing (31). The second charging receiving component (32) includes a third charging receiving coil (321), which is disposed around the outer periphery of the second housing (31). The base (21) also has a second annular charging cavity (216) inside. The second annular charging cavity (216) is adapted to the second housing (31) and is concentric with the first annular charging cavity (211). At least one of the third charging receiving coil (321) and the first charging transmitting coil (221) forms a closed ring, so that the first charging transmitting coil (221) can also cooperate with the third charging receiving coil (321) to charge the second wearable device (300).

8. The electronic device according to claim 7, characterized in that, The second charging receiving component (32) further includes a fourth charging receiving coil (322), which is disposed around the inner periphery of the second housing (31); The first charging transmitter assembly (22) further includes a third charging transmitter coil (223), which is disposed around the outer periphery of the second annular charging cavity (216). At least one of the fourth charging receiver coil (322) and the third charging transmitter coil (223) forms a closed ring, so that the third charging transmitter coil (223) can cooperate with the fourth charging receiver coil (322) to charge the second wearable device (300).

9. The electronic device according to claim 1, characterized in that, The charging device (200) also includes: A magnetic suction element (24) is disposed between the first annular charging cavity (211) and the base plate (215) of the base (21), and corresponds to the first annular charging cavity (211) along the installation direction of the first wearable device (100).

10. The electronic device according to claim 1, characterized in that, The electronic device also includes: A fourth charging transmitting coil (25) is disposed on the base plate (215) of the base (21) and is used to charge external electronic devices.

11. The electronic device according to claim 1, characterized in that, Both the first charging receiving coil (121) and the second charging receiving coil (122) are arranged along the thickness direction of the first wearable device (100).

Images