An intelligent ring charging system

Abstract

This application discloses an intelligent ring charging system that enables automatic alignment of the ring body, thereby improving charging efficiency. The intelligent ring charging system includes a charging base and a ring body, the ring body being a fully enclosed, non-porous structure. The ring body contains a capacitively coupled receiving electrode assembly and a first magnetic alignment assembly. The charging base contains a capacitively coupled emitting electrode assembly and a second magnetic alignment assembly. When the ring body is placed on the charging base, the first and second magnetic alignment assemblies magnetically engage, allowing the ring body to automatically align at a unique angle on the charging base. Non-contact electric field coupling is achieved between the capacitively coupled emitting and receiving electrode assemblies, enabling contactless charging of the ring body.

Description

Technical Field

[0001] This application relates to the field of wearable device technology, and more particularly to a smart ring charging system. Background Technology

[0002] Smart rings are miniature wearable devices widely used in health monitoring, motion sensing, and intelligent interaction. However, as their functions continue to upgrade, the power consumption of these devices is also increasing, leading to higher charging requirements for smart rings.

[0003] Most current smart rings use exposed contacts and open-hole charging structures, which require the charging structure to be reserved in the ring shell. This compromises the overall sealing of the device, resulting in a decrease in waterproof, dustproof, and sweatproof performance. During daily wear, sweat, dust, and moisture can penetrate the device, causing problems such as circuit corrosion, short circuits, and component damage, significantly shortening the device's lifespan and posing charging safety hazards. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a smart ring charging system.

[0005] The technical solution provided in this application is described below:

[0006] This application provides a smart ring charging system, including: a charging base and a ring body; The ring body has a fully enclosed, holeless structure; The ring body is provided with a capacitive coupling receiving electrode assembly and a first magnetic alignment assembly. The charging base is provided with a capacitively coupled emitter plate assembly and a second magnetic alignment assembly. When the ring body is placed on the charging base, the first magnetic alignment component and the second magnetic alignment component magnetically engage, so that the ring body is automatically aligned at a unique angle on the charging base, and non-contact electric field coupling is achieved through the capacitive coupling emitter plate component and the capacitive coupling receiver plate component, thereby realizing contactless charging of the ring body.

[0007] Optionally, the capacitively coupled receiving electrode assembly includes at least two flexible receiving electrode plates, which are arranged at intervals along the circumference of the ring body and attached to the inner surface of the ring body.

[0008] Optionally, the capacitively coupled emitter plate assembly includes at least two copper foil emitter plates, the positions of which correspond to the positions of the flexible receiving electrode plate, and the surfaces of the copper foil emitter plates are all covered with a polyimide insulating layer.

[0009] Optionally, the first magnetic alignment component includes a first magnet and a second magnet, which are circumferentially embedded in the ring body, with the first magnet and the second magnet having opposite polarities on the side facing the outside of the ring body.

[0010] Optionally, the charging base is provided with a semi-circular arc-shaped positioning groove, which matches the outer diameter of the ring body. The arc-shaped positioning groove is used to snap the ring body in place, and a preset distance is provided between the flexible receiving electrode plate and the copper foil emitting electrode plate.

[0011] Optionally, the second magnetic alignment component includes a third magnet and a fourth magnet, which are embedded in the arc-shaped positioning groove, and the third magnet and the fourth magnet have opposite polarities on the side facing the ring body.

[0012] Optionally, the charging dock has a built-in electric field driving module, which is used to convert DC input into a high-frequency alternating electric field to drive capacitively coupled energy transmission.

[0013] Optionally, the outer shell of the ring body is made of metal or alloy.

[0014] Optionally, the capacitively coupled receiving electrode assembly is connected to the charging management circuit inside the ring body via leads.

[0015] Optionally, the charging base is provided with a status indicator LED.

[0016] As can be seen from the above technical solutions, this application has the following advantages: 1. This application designs the ring body as a fully enclosed, non-porous structure. The shell has no openings or exposed conductive contacts, effectively preventing moisture, sweat, and dust from entering the device, thus avoiding corrosion and damage to the internal circuitry and reducing charging safety hazards. Furthermore, both the ring body and the charging base are equipped with magnetic alignment components. When the two magnetically engage, the ring body automatically aligns at a unique angle, preventing misalignment of the electrodes and ensuring normal power transmission.

[0017] 2. This application employs capacitive coupling and electric field coupling to achieve contactless power transmission, resulting in a compact and small overall structure with good wearing comfort. Furthermore, this charging method is less susceptible to external electromagnetic interference, ensuring a stable and continuous charging process and contributing to improved charging efficiency. Attached Figure Description To more clearly illustrate the technical solutions in this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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 internal structure of the ring body in the smart ring charging system of this application; Figure 2 This is a schematic diagram of the overall structure of the smart ring charging system of this application; In the diagram: 1. Ring body; 2. First magnet; 3. Second magnet; 4. Receiving electrode plate; 5. Charging management circuit; 6. Battery; 7. Copper foil emitting electrode plate; 8. Charging base; 9. Third magnet; 10. Fourth magnet; 11. Electric field drive module. Detailed Implementation

[0020] In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and other terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to describe the relative positional relationship between the components or parts and do not specifically limit the specific installation orientation of each component or part.

[0021] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0022] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0023] Furthermore, the structures, proportions, sizes, etc., drawn in the accompanying drawings of this application are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modification to the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Most current smart rings use exposed contacts and open-hole charging structures, which require the charging structure to be reserved in the ring shell. This compromises the overall sealing of the device, resulting in a decrease in waterproof, dustproof, and sweatproof performance. During daily wear, sweat, dust, and moisture can penetrate the device, causing problems such as circuit corrosion, short circuits, and component damage, significantly shortening the device's lifespan and posing charging safety hazards.

[0026] Based on this, this application provides an intelligent ring charging system that can effectively prevent moisture, sweat and dust from entering the device, avoid corrosion and damage to the internal circuitry, reduce charging safety hazards, and achieve automatic alignment, thereby helping to improve charging efficiency.

[0027] Please see Figures 1 to 2 The present application provides a smart ring charging system, including: a charging base 8 and a ring body 1; The ring body 1 is a completely enclosed, holeless structure; The ring body 1 is equipped with a capacitive coupling receiving plate assembly and a first magnetic alignment assembly; The charging base 8 is equipped with a capacitively coupled emitter plate assembly and a second magnetic alignment assembly. When the ring body 1 is placed on the charging base 8, the first magnetic alignment component and the second magnetic alignment component magnetically engage to automatically align the ring body 1 at a unique angle on the charging base 8. Then, through the capacitive coupling emitter plate component and the capacitive coupling receiver plate component, non-contact electric field coupling is achieved to realize contactless charging of the ring body 1.

[0028] First, the function and purpose of each component in this application will be explained: Ring Body 1: The ring body 1 adopts a fully enclosed, non-porous structure. The outer shell of the ring body 1 is made of Ti Grade 4 titanium alloy material with a thickness of 0.2mm, which can maintain a complete sealing structure to achieve an IPX8 waterproof rating. At the same time, the titanium alloy shell directly serves as the dielectric layer for capacitive coupling transmission, without the need for additional insulation layers. This avoids the weakening of the shell structure strength caused by the opening of traditional charging contacts, and also solves the problems of corrosion and increased contact resistance of metal contacts exposed to sweat and moisture. It provides a sealed protective space for the battery 6, sensor, circuit board and other components inside the ring.

[0029] Capacitively coupled receiving electrode assembly: The capacitively coupled receiving electrode assembly is symmetrically arranged circumferentially along the inner wall of the ring body 1 and is tightly attached to the inner surface of the titanium alloy shell with conductive adhesive. It is mainly used to receive the alternating electric field energy transmitted by the capacitively coupled transmitting electrode. The thickness of the capacitively coupled receiving electrode assembly is much smaller than that of the traditional electromagnetic induction coil, which can save internal thickness space and reserve sufficient installation space for components such as sensors and batteries 6. Moreover, the capacitive coupling method is not affected by the shielding of the titanium alloy metal shell, and will not generate eddy current loss and heat generation, and can stably and efficiently complete non-contact power reception.

[0030] First magnetic alignment component: The first magnetic alignment component is embedded inside the ring body 1 and has opposite polarities, forming a unique magnetic pole direction feature. It is used to form a magnetic match with the second magnetic alignment component in the charging base 8. When the ring is placed on the charging base 8, it provides directional magnetic force, driving the ring to automatically rotate to the correct angle, ensuring that the receiving plate and the transmitting plate are accurately aligned, avoiding the decrease in charging efficiency or charging interruption due to angle deviation, and realizing the blind discharge charging function that does not require the user to distinguish the direction.

[0031] Charging base 8: The top of the charging base 8 has a semi-circular groove that matches the curvature of the outer diameter of the ring, which is used to stably place the ring body 1. The bottom is equipped with an anti-slip silicone pad and a counterweight to ensure that the charging base 8 does not shift when the user picks up and puts down the ring with one hand. The charging base 8 integrates a charging detection and protection circuit and a status indicator module, which can provide stable driving energy for the capacitively coupled emitter plate. At the same time, it realizes standby, foreign object detection, charging status monitoring and power adjustment functions, and is the energy supply and control center of the entire charging device.

[0032] Capacitively coupled emitter plate assembly: The capacitively coupled emitter plate assembly is embedded in the inner wall of the semi-circular groove of the charging base 8. Under the drive of the driving circuit, it converts the input electrical energy into an alternating electric field and emits it outward.

[0033] The second magnetic alignment component is complementary in polarity to the first magnetic alignment component. The second magnetic alignment component is embedded in the preset position of the arc-shaped groove of the charging base 8, and forms a magnetic complementary cooperation with the magnet at the end of the ring. When the ring body 1 is placed in the groove, the ring is driven to rotate automatically under the action of magnetic force and lock into the precise alignment position of the electrode plate. This ensures that the capacitor coupling transmitting electrode plate component and the capacitor coupling receiving electrode plate component always maintain the best coupling position, thereby improving charging stability and energy transmission efficiency and avoiding positional shift during charging.

[0034] Overall working principle: When the ring body 1 is placed in the semi-circular groove of the charging base 8, the first magnetic alignment component inside the ring body 1 and the second magnetic alignment component inside the charging base 8 form a magnetic attraction due to their complementary polarities. Under the action of magnetic force, the ring body 1 is driven to automatically rotate to the only correct angle and complete the locking. At this time, the capacitive coupling receiving plate assembly and the capacitive coupling transmitting plate assembly achieve high-precision alignment, and the plate spacing is kept within the preset spacing.

[0035] The driving circuit inside the charging base 8 converts the input voltage into an alternating voltage and applies it to the capacitively coupled emitter plate assembly. The alternating electric field formed by the capacitive coupling is used to transfer energy to the ring body 1 in a non-contact manner. After the capacitively coupled receiver plate assembly of the ring body 1 captures the electric field energy, it is transmitted to the charging management circuit 5. After internal synchronous rectification and voltage regulation, the battery 6 is charged with a constant current.

[0036] During the charging process, the charging base 8 continuously monitors the changes in the transmitter impedance and quality factor Q value. When the ring body 1 is not detected, it automatically enters standby mode. When a metal foreign object is detected, it immediately stops energy transmission and flashes an alarm LED. After the battery 6 is fully charged, the charging base 8 detects the power change and automatically reduces the transmission power to the maintenance mode.

[0037] It uses capacitive coupling and electric field coupling to achieve contactless power transmission. The overall structure is compact and small, comfortable to wear, and not easily affected by external electromagnetic interference. The charging process is stable and continuous, which helps to improve charging efficiency.

[0038] Optionally, the capacitively coupled receiving electrode assembly includes at least two flexible receiving electrode plates 4, which are arranged at intervals along the circumference of the ring body 1 and attached to the inner surface of the ring body 1.

[0039] In this embodiment, the capacitive coupling receiving electrode assembly includes at least two ultra-thin flexible receiving electrode plates 4. The electrode plates are made of rolled copper foil with a thickness of 0.035mm and are evenly spaced along the circumference of the ring body 1. They are tightly attached to the inner surface of the titanium alloy shell of the ring body 1 with conductive adhesive. The two electrode plates are spaced apart to form a stable capacitive coupling electric field receiving channel. The attached structure does not occupy the extra installation thickness inside the ring, which can save internal space to the maximum extent and is suitable for the extremely small internal installation environment of the smart ring.

[0040] Optionally, the capacitively coupled emitter plate assembly includes at least two copper foil emitter plates 7, the positions of which correspond to the positions of the flexible receiving electrode plate 4, and the surfaces of the copper foil emitter plates 7 are covered with a polyimide insulating layer.

[0041] In this embodiment, the capacitively coupled emitter plate assembly consists of at least two copper foil emitter plates. The installation positions of the copper foil emitter plates 7 correspond one-to-one with the positions of the flexible receiving electrode plates 4 inside the ring body 1, ensuring that the plates can be accurately coupled during energy transmission. The surface of the copper foil emitter plates 7 is entirely covered with a 0.1mm thick polyimide insulating layer. This insulating layer can effectively prevent the plates from directly contacting each other and causing short circuits, while improving the safety of charging and ensuring stable and reliable capacitively coupled energy transmission.

[0042] Optionally, the first magnetic alignment component includes a first magnet 2 and a second magnet 3, with the first magnet 2 and the second magnet 3 circumferentially embedded inside the ring body 1, and the polarities of the first magnet 2 and the second magnet 3 being opposite on the side facing the outside of the ring body 1.

[0043] In this embodiment, the first magnetic alignment component consists of two miniature magnets, a first magnet 2 and a second magnet 3. The magnets are made of N52 neodymium iron boron material and are embedded and installed circumferentially inside the ring body 1. The side of the first magnet 2 facing the outside of the ring body 1 is the N pole, and the side of the second magnet 3 facing the outside of the ring body 1 is the S pole, or the side of the first magnet 2 facing the outside of the ring body 1 is the S pole, and the side of the second magnet 3 facing the outside of the ring body 1 is the N pole. The opposite outward polarities can form a unique magnetic pole feature to ensure that a unique angle is automatically aligned when magnetically engaged with the charging base 8.

[0044] Optionally, the charging base 8 is provided with a semi-circular arc-shaped positioning groove, which matches the outer diameter of the ring body 1. The arc-shaped positioning groove is used to snap the ring body 1 in place, and a preset distance is provided between the flexible receiving electrode plate 4 and the copper foil emitting electrode plate 7.

[0045] In this embodiment, the top of the charging base 8 is provided with a semi-circular arc-shaped positioning groove. The radius of curvature of the positioning groove matches the outer diameter of the ring body 1, which can stably hold the ring body 1 and prevent the ring from shaking or shifting after being placed. Moreover, the structure of the semi-circular arc-shaped positioning groove can maintain a preset distance of less than 0.5mm between the flexible receiving electrode plate 4 and the copper foil emitting electrode plate 7 after the ring body 1 is placed, providing stable distance conditions for efficient energy transmission through capacitive coupling.

[0046] Optionally, the second magnetic alignment component includes a third magnet 9 and a fourth magnet 10, which are embedded in an arc-shaped positioning groove, and the polarities of the third magnet 9 and the fourth magnet 10 are opposite on the side facing the ring body 1.

[0047] In this embodiment, the second magnetic alignment component consists of a third magnet 9 and a fourth magnet 10. The third magnet 9 and the fourth magnet 10 are embedded in the inner wall of the semi-circular positioning groove of the charging base 8. The polarities of the third magnet 9 and the fourth magnet 10 facing the ring body 1 are opposite, and they respectively form a polarity complementary match with the first magnet 2 and the second magnet 3 inside the ring body 1. Under the action of magnetic force, the ring body 1 can be driven to rotate and position automatically, thereby ensuring that the subsequent charging process can proceed stably.

[0048] Optionally, the charging dock has a built-in electric field driving module 11, which is used to convert the DC input into a high-frequency alternating electric field to drive capacitively coupled energy transfer.

[0049] In this embodiment, the charging base 8 integrates an electric field driving module 11, which includes an oscillator, a Class D power amplifier, and an LC matching network. This module can convert the externally input USB 5V DC power into a 6.78MHz high-frequency alternating electric field, providing a stable driving signal for the capacitively coupled emitter plate, realizing non-contact electric field coupling energy transmission, and meeting the low-power and high-efficiency charging requirements of the smart ring.

[0050] Optionally, the outer casing of the ring body 1 may be made of metal or alloy.

[0051] In this embodiment, the outer shell of the ring body 1 is made of metal or alloy material, preferably Ti Grade 4 titanium alloy with a thickness of 0.2mm. This material has high strength and corrosion resistance, can keep the outer shell completely sealed to achieve IPX8 waterproof rating, and can be directly used as the dielectric layer for capacitive coupling transmission without the need for additional insulation layer. It is suitable for the working requirements of electric field coupling energy transmission and will not generate eddy current loss and heat generation problems.

[0052] Optionally, the capacitively coupled receiving electrode assembly is connected to the charging management circuit 5 inside the ring body 1 via leads.

[0053] In this embodiment, the capacitively coupled receiving electrode assembly is electrically connected to the charging management circuit 5 inside the ring body 1 via flexible FPC leads. The charging management circuit 5 adopts a BQ25170 dedicated charging management circuit 5, which is used to transmit the captured high-frequency alternating electric field energy to the charging management circuit 5 via the leads. After synchronous rectification and voltage regulation are completed internally, the circuit provides a stable charging voltage and current to the battery 6 inside the ring body 1, realizing reliable charging control. Optionally, the charging dock 8 is equipped with a status indicator LED.

[0054] In this embodiment, a status indicator LED is installed on the charging base 8. The working status of the charging device can be fed back through different light states. A solid green light indicates that the device is charging, a green breathing light indicates that the battery 6 is fully charged, a flashing red light indicates that a metal foreign object has been detected entering the charging area, and a dim white light indicates that the device is in a low-power standby state. This allows users to intuitively and quickly identify the charging status.

[0055] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A smart ring charging system, characterized in that, Includes a charging dock and the ring itself; The ring body has a fully enclosed, holeless structure; The ring body is provided with a capacitive coupling receiving electrode assembly and a first magnetic alignment assembly. The charging base is provided with a capacitively coupled emitter plate assembly and a second magnetic alignment assembly. When the ring body is placed on the charging base, the first magnetic alignment component and the second magnetic alignment component magnetically engage, so that the ring body is automatically aligned at a unique angle on the charging base, and non-contact electric field coupling is achieved through the capacitive coupling emitter plate component and the capacitive coupling receiver plate component, thereby realizing contactless charging of the ring body.

2. The smart ring charging system according to claim 1, characterized in that, The capacitively coupled receiving electrode assembly includes at least two flexible receiving electrode plates, which are arranged at intervals along the circumference of the ring body and attached to the inner surface of the ring body.

3. The intelligent ring charging system according to claim 2, characterized in that, The capacitively coupled emitter electrode assembly includes at least two copper foil emitter electrodes, the positions of which correspond to the positions of the flexible receiving electrode plates, and the surfaces of the copper foil emitter electrodes are all covered with a polyimide insulating layer.

4. The intelligent ring charging system according to claim 1, characterized in that, The first magnetic alignment component includes a first magnet and a second magnet. The first magnet and the second magnet are embedded circumferentially inside the ring body. The first magnet and the second magnet have opposite polarities on the side facing the outside of the ring body.

5. The intelligent ring charging system according to claim 3, characterized in that, The charging base is provided with a semi-circular arc-shaped positioning groove, which matches the outer diameter of the ring body. The arc-shaped positioning groove is used to snap the ring body in place, and a preset distance is provided between the flexible receiving electrode plate and the copper foil emitting electrode plate.

6. The smart ring charging system according to claim 5, characterized in that, The second magnetic alignment component includes a third magnet and a fourth magnet, which are embedded in the arc-shaped positioning groove, and the third magnet and the fourth magnet have opposite polarities facing the side of the ring body.

7. The intelligent ring charging system according to claim 1, characterized in that, The charging dock has a built-in electric field driving module, which is used to convert DC input into a high-frequency alternating electric field to drive capacitively coupled energy transmission.

8. The intelligent ring charging system according to claim 1, characterized in that, The outer shell of the ring is made of metal or alloy.

9. The intelligent ring charging system according to claim 1, characterized in that, The capacitively coupled receiving electrode assembly is connected to the charging management circuit inside the ring body via leads.

10. The smart ring charging system according to any one of claims 1 to 9, characterized in that, The charging base is equipped with a status indicator LED light.

Images