Wireless charging structure and wireless charging equipment

Abstract

The invention discloses a wireless charging structure and wireless charging equipment, and relates to the technical field of intelligent ring charging equipment.The wireless charging structure is used for charging an intelligent ring, the intelligent ring is provided with a wearing space for wearing, the wireless charging structure comprises a shell and a charging module, the shell is provided with a bearing column, a containing cavity is formed in the bearing column, and the charging module is arranged in the containing cavity; the bearing column can be arranged in the wearing space in a penetrating mode, the charging module comprises a first charging coil arranged in the containing cavity, and the first charging coil is used for charging the intelligent ring arranged on the bearing column in a sleeving mode; the bearing column is provided with a first end far away from the shell and a second end close to the shell, and the cross section area of the bearing column in the direction perpendicular to the axial direction of the bearing column is gradually increased from the first end to the second end. The universality of the wireless charging structure is improved, intelligent rings of different specifications and sizes can be charged, and the angle of the intelligent ring does not need to be fixed during charging.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent ring charging devices, and particularly to a wireless charging structure and a wireless charging device applying the wireless charging structure. Background Art

[0002] As users pay more and more attention to their health status, intelligent rings capable of monitoring heart rate, temperature and exercise status are loved by more and more users. As a wearable device, the intelligent ring is not only one of the jewelry that people wear daily, but also in close contact with the skin and has a small volume and is not easy to perceive, which is a very convenient way for health monitoring. After the user wears the intelligent ring, they can read their own health information on a supporting device such as a mobile phone or a tablet, and it is smaller and lighter than a smart watch.

[0003] However, due to the volume and power consumption limitations of sensors such as PPG and ECG and the battery, the intelligent ring capable of carrying health monitoring functions has a very short battery life and needs to be charged frequently. In the related art, the charging of the intelligent ring is completed through a charging box. The intelligent ring is placed into the charging box according to a preset position, and wireless or wired charging is used. In order to reduce the size of the coil while ensuring the charging power and avoid the influence of the coil resistance, the alternating current emission frequency of the charging will be increased, which leads to problems such as electromagnetic interference. At the same time, due to the characteristics of the intelligent ring being a customized product, the inner diameter size will be adjusted according to the size of each user's wearing finger, so each specification of the intelligent ring needs to be adapted to a kind of charging box, resulting in a large variety of charging boxes and no universality, which will increase the cost for users to use upgrades for subsequent updates and iterations. Summary of the Invention

[0004] The main object of the present invention is to provide a wireless charging structure and a wireless charging device, aiming to improve the universality of the wireless charging structure, realize charging for intelligent rings of different specifications and sizes, and not require a fixed angle for the intelligent ring during charging.

[0005] To achieve the above object, the present invention provides a wireless charging structure for charging an intelligent ring. The intelligent ring has a wearing space for wearing. The wireless charging structure includes: A housing provided with a bearing column. The bearing column is provided with a cavity, and the bearing column is used for passing through the wearing space; and A charging module including a first charging coil disposed in the cavity. The first charging coil is used for charging the intelligent ring sleeved on the bearing column; Wherein, the bearing column has a first end away from the housing and a second end close to the housing, and the cross-sectional area of the bearing column in a direction perpendicular to its axial direction gradually increases from the first end to the second end.

[0006] In one embodiment, the bearing column is tapered; Or, the outer surface of the bearing column is at least one of a plane, a convex arc surface, and a concave arc surface from the first end to the second end.

[0007] In one embodiment, the cross-section of the bearing column in a direction perpendicular to its axial direction is circular, and the diameter range of the circle is 0 - 100 mm; And / or, the housing has a connection surface connected to the bearing column, and the included angle between the outer wall surface of the bearing column and the connection surface is greater than 90° and less than 180°.

[0008] In one embodiment, the first charging coil is disposed on the inner wall of the cavity and extends from the first end to the second end.

[0009] In one embodiment, an installation cavity is provided in the housing, and the charging module further includes a control board disposed in the installation cavity, and the control board is electrically connected to the first charging coil.

[0010] In one embodiment, the charging module further includes a support member disposed in the cavity, and the first charging coil is wound around the outer wall of the support member and extends from the first end to the second end.

[0011] In one embodiment, the outer wall surface of the support member is parallel to the outer wall surface of the bearing column; And / or, the support member has a top end adjacent to the first end and a bottom end adjacent to the second end, and the cross-sectional area of the support member in a direction perpendicular to its axial direction gradually increases from the top end to the bottom end; And / or, the extension length of the support member in its axial direction is greater than or equal to the extension length of the first charging coil in the axial direction of the support member; And / or, the material of the support member is a metal material or a non-metal material.

[0012] In one embodiment, the support member is an iron core structure.

[0013] In one embodiment, the wireless charging structure further includes an indicator light disposed on the housing, and the indicator light is electrically connected to the control board; And / or, the wireless charging structure further includes a connector disposed on the housing, the connector is electrically connected to the control board, and the connector is used for connecting to an external circuit; And / or, the wireless charging structure further includes a power source disposed in the housing, and the power source is electrically connected to the control board.

[0014] The present invention also provides a wireless charging device, which includes the above-mentioned wireless charging structure.

[0015] In the wireless charging structure of the technical solution of the present invention, by providing a bearing post on the housing and providing a cavity in the bearing post, the first charging coil of the charging module is installed in the cavity. When charging the smart ring, the smart ring is sleeved on the bearing post of the housing, so that the bearing post passes through the wearing space of the smart ring. In this way, the first charging coil of the charging module can be used to charge the smart ring sleeved on the bearing post. At the same time, the bearing post has a first end far from the housing and a second end close to the housing. By gradually increasing the cross-sectional area of the bearing post in the direction perpendicular to its axial direction from the first end to the second end, it is convenient for the smart ring to be sleeved on the bearing post, and different specifications and sizes of smart rings can be adapted according to different dimensions of the bearing post in its axial direction. At the same time, when charging the smart ring, charging can be achieved without fixing the angle of the smart ring, thereby improving the versatility and convenience of the wireless charging structure and reducing the cost of user use and upgrade. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0017] Figure 1 It is a schematic structural diagram of an embodiment of the wireless charging structure provided by the present invention; Figure 2 It is a schematic cross-sectional view of an embodiment of the wireless charging structure provided by the present invention; Figure 3 It is an exploded schematic cross-sectional view of an embodiment of the wireless charging structure provided by the present invention; Figure 4 It is a schematic structural diagram of the wireless charging structure charging a smart ring in an embodiment of the present invention; Figure 5 It is a schematic cross-sectional view of the wireless charging structure charging a smart ring in an embodiment of the present invention; Figure 6 It is an exploded schematic diagram of an embodiment of the smart ring provided by the present invention.

[0018] Explanation of the reference numerals in the drawings: 100. Wireless charging structure; 1. Housing; 11. Installation cavity; 12. Connection surface; 13. Bearing column; 131. Accommodation cavity; 132. First end; 133. Second end; 2. Charging module; 21. First charging coil; 22. Control board; 23. Support member; 231. Top end; 232. Bottom end; 3. Indicator light; 4. Connector; 5. Power supply; 600. Smart ring; 610. Outer shell; 611. Accommodation cavity; 612. Outer cover; 613. Inner ring; 614. Wearing space; 620. Charging component; 621. Second charging coil; 622. Circuit board; 623. Battery component; 630. Detection component.

[0019] The realization, functional features and advantages of the object of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0022] At the same time, the meaning of "and / or" or "and / or" that appears throughout the text is that it includes three solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time.

[0023] In addition, the descriptions such as "first" and "second" in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0024] As users pay more and more attention to their health status, smart rings that can monitor heart rate, temperature, and exercise status are becoming increasingly popular among users. As a wearable device, the smart ring is not only one of the daily jewelry that people wear, but also in close contact with the skin, and has a small volume and is not easily perceptible, which is a very convenient way for health monitoring. After the user wears the smart ring, they can read their health information on a mobile phone or a tablet and other supporting devices, and it is smaller and lighter than a smart watch.

[0025] However, due to the volume and power consumption limitations of sensors such as PPG and ECG, as well as the battery, the smart ring that can carry the health monitoring function has a very short battery life and needs to be charged frequently. In related technologies, the charging of the smart ring is completed through a charging case. The smart ring is placed in the charging case according to a preset position, and wireless or wired methods are used for charging. In order to reduce the size of the coil while ensuring the charging power and avoiding the influence of the coil resistance, the alternating current emission frequency of the charging is increased, which leads to problems such as electromagnetic interference. At the same time, due to the characteristics of the smart ring being a customized product, the inner diameter size will be adjusted according to the size of each user's wearing finger, so each specification of the smart ring needs to be adapted to a charging case, resulting in a large variety of charging cases and no universality, which will increase the cost for users to upgrade in subsequent updates and iterations.

[0026] It can be understood that a smart ring generally needs to be provided with a charging device that matches it. The existing charging devices generally use charging contacts to magnetically fix the smart ring for wired charging. The charging contacts are fully exposed. If the charging contacts are not cleaned after the smart ring is used and then charged, the charging contacts are likely to oxidize and cause poor contact during charging. In addition, there are also problems of leakage and corrosion of the charging contacts of the smart ring. And the charging devices using wireless charging often need to fix the smart ring and can only be charged after being placed at a preset position or angle, resulting in inconvenient use for users and poor universality.

[0027] Based on the above concepts and problems, the present invention proposes a wireless charging structure 100. It can be understood that the wireless charging structure 100 is used to charge the smart ring 600. The wireless charging structure 100 in this embodiment wirelessly charges the smart ring 600, and can be adapted to smart rings 600 of different specifications and sizes. At the same time, when the smart ring 600 is charged, the smart ring 600 does not need to be fixed at an angle to achieve charging, thereby improving the universality and convenience of the wireless charging structure 100 and reducing the cost for users to upgrade.

[0028] In this embodiment, as Figures 4 to 6As shown, the smart ring 600 is arranged in a ring shape, so that the smart ring 600 has a wearing space 614 for wearing. Optionally, the smart ring 600 is arranged in a regular circular ring structure. It can be understood that the smart ring 600 includes a housing 610, a charging component 620, a detection component 630, etc. The housing 610 is provided with a receiving cavity 611, and components such as the charging component 620 and the detection component 630 are arranged in the receiving cavity 611, and the charging component 620 is electrically connected to the detection component 630.

[0029] It should be noted that the charging component 620 of the smart ring 600 is used to cooperate with the charging module 2 of the wireless charging structure 100 to achieve wireless charging, and the detection component 630 is used to monitor the health of the user. In this embodiment, the detection component 630 includes a PPG module, an ECG module, etc., and specific references can be made to the prior art, which will not be limited here.

[0030] Please refer to Figures 1 to 5 As shown, in the embodiment of the present invention, the wireless charging structure 100 includes a housing 1 and a charging module 2. The housing 1 is provided with a bearing column 13. An accommodation cavity 131 is arranged in the bearing column 13. The bearing column 13 is used to pass through the wearing space 614. The charging module 2 includes a first charging coil 21 arranged in the accommodation cavity 131. The first charging coil 21 is used to charge the smart ring 600 sleeved on the bearing column 13. Among them, the bearing column 13 has a first end 132 far from the housing 1 and a second end 133 close to the housing 1. The cross-sectional area of the bearing column 13 in the direction perpendicular to its axial direction gradually increases from the first end 132 to the second end 133.

[0031] In this embodiment, the housing 1 of the wireless charging structure 100 is used to install, fix and protect components such as the charging module 2, that is, the housing 1 provides an installation basis for components such as the charging module 2. It can be understood that in order to facilitate the wireless charging structure 100 to place and charge the smart ring 600, the housing 1 is provided with a bearing column 13. Optionally, the bearing column 13 has a certain extension height on the housing 1, that is, the bearing column 13 has a first end 132 far from the housing 1 and a second end 133 close to the housing 1. The extension height or length of the bearing column 13 is from the first end 132 to the second end 133.

[0032] It can be understood that when the wireless charging structure 100 charges the smart ring 600, the smart ring 600 is sleeved on the bearing column 13 of the housing 1, that is, the bearing column 13 passes through the wearing space 614 of the smart ring 600, so that at least one end inner wall surface of the smart ring 600 abuts against the outer wall surface of the bearing column 13, thereby realizing the placement of the smart ring 600.

[0033] In this embodiment, a cavity 131 is provided in the bearing column 13. By disposing the first charging coil 21 of the charging module 2 in the cavity 131, the smart ring 600 sleeved on the bearing column 13 is charged by the first charging coil 21. It can be understood that the charging component 620 of the smart ring 600 includes a second charging coil 621 disposed in the accommodation cavity 611. Optionally, the second charging coil 621 is disposed around the wearing space 614 along the accommodation cavity 611.

[0034] It can be understood that when the smart ring 600 is sleeved on the bearing column 13 of the housing 1, the second charging coil 621 of the smart ring 600 is opposite to the first charging coil 21 in the cavity 131 of the bearing column 13. In this embodiment, the first charging coil 21 is optionally disposed in a ring shape, that is, disposed in a ring shape along the inner wall of the cavity 131 of the bearing column 13. In this way, the wireless charging structure 100 realizes wireless charging of the smart ring 600 through the cooperation of the first charging coil 21 and the second charging coil 621 of the smart ring 600. The specific principle can refer to the existing wireless charging technology and will not be limited here.

[0035] In this embodiment, as Figures 1 to 5 shown, by gradually increasing the cross-sectional area of the bearing column 13 in the direction perpendicular to its axial direction from the first end 132 to the second end 133, the cross-sectional area of the first end 132 of the bearing column 13 away from the housing 1 is small, and the cross-sectional area of the second end 133 of the bearing column 13 close to the housing 1 is large. In this way, when the smart ring 600 is sleeved on the bearing column 13 of the housing 1, it can be conveniently sleeved on the outer wall surface of the bearing column 13 from the smaller end of the first end 132 of the bearing column 13 away from the housing 1. At the same time, according to smart rings 600 of different specifications and sizes, after the smart ring 600 is sleeved on the bearing column 13, as the cross-sectional dimension of the second end 133 of the bearing column 13 close to the housing 1 gradually increases, the smart ring 600 stops or is limited at different heights along the axial direction of the bearing column 13. At this time, the wireless charging structure 100 realizes wireless charging of the smart ring 600 through the cooperation of the first charging coil 21 and the second charging coil 621 of the smart ring 600.

[0036] Optionally, the first charging coil 21 extends from the first end 132 to the second end 133. Such a setting can ensure that when the smart rings 600 of different specifications and sizes are at any position along the axial direction of the bearing column 13, the second charging coil 621 of the smart ring 600 can be opposite to the first charging coil 21, thereby realizing wireless charging.

[0037] Optionally, the supporting column 13 is conical. It can be understood that the supporting column 13 can be adapted to smart rings 600 of different specifications and sizes. At the same time, since the inner frame of the smart ring 600 is a complete circle, it is not necessary to rotate to a specific angle to match the charging base during charging, and it is allowed to rotate when placed on the supporting column 13.

[0038] It can be understood that both the first charging coil 21 and the second charging coil 621 adopt the charging coils in the wireless charging technology in the prior art. For specific reference to the prior art, it is not limited herein.

[0039] The wireless charging structure 100 of the present invention is provided with a supporting column 13 on the housing 1 and a cavity 131 is provided in the supporting column 13, so as to install the first charging coil 21 of the charging module 2 by using the cavity 131. When charging the smart ring 600 in this way, the smart ring 600 is sleeved on the supporting column 13 of the housing 1, so that the supporting column 13 passes through the wearing space 614 of the smart ring 600. In this way, the first charging coil 21 of the charging module 2 can be used to charge the smart ring 600 sleeved on the supporting column 13; at the same time, the supporting column 13 has a first end 132 far from the housing 1 and a second end 133 close to the housing 1. By making the cross-sectional area of the supporting column 13 gradually increase from the first end 132 to the second end 133 in the direction perpendicular to its axial direction, it is convenient for the smart ring 600 to be sleeved on the supporting column 13, and the smart ring 600 of different specifications and sizes can be adapted according to different dimensions of the supporting column 13 along its axial direction. At the same time, when the smart ring 600 is charged, it is not necessary to fix the angle of the smart ring 600 to achieve charging, thereby improving the versatility and convenience of the wireless charging structure 100 and reducing the cost of user use and upgrade.

[0040] Optionally, the outer surface of the supporting column 13 is at least one of a plane, a convex arc surface, and a concave arc surface from the first end 132 to the second end 133. It can be understood that by setting the outer contour of the supporting column 13 as a conical structure, it is possible that the outer surface of the supporting column 13 is at least one of a plane, a convex arc surface, and a concave arc surface from the first end 132 to the second end 133. Thus, the smart ring 600 of different specifications and sizes can be adapted according to different dimensions of the supporting column 13 along its axial direction. At the same time, when the smart ring 600 is charged, it is not necessary to fix the angle of the smart ring 600 to achieve charging, thereby improving the versatility and convenience of the wireless charging structure 100 and reducing the cost of user use and upgrade.

[0041] In this embodiment, the cross-section of the supporting column 13 perpendicular to its axial direction is optionally circular, elliptical, regular polygon (such as triangle, square, regular pentagon, regular hexagon, etc.), etc., which is not limited herein.

[0042] In one embodiment, the cross-section of the bearing post 13 along a direction perpendicular to its axial direction is optionally circular. Optionally, the diameter of the circle ranges from 0 to 100 mm from the first end 132 to the second end 133. In this embodiment, the diameters of the circles are 2 mm, 5 mm, 10 mm, 12 mm, 15 mm, 20 mm, 22 mm, 25 mm, 30 mm, 32 mm, 35 mm, 40 mm, 42 mm, 45 mm, 50 mm, 52 mm, 55 mm, 60 mm, 62 mm, 65 mm, 70 mm, 75 mm, 80 mm, 85 mm, 90 mm, 95 mm, 100 mm, etc., which are not limited herein.

[0043] It can be understood that from the first end 132 to the second end 133, by setting the diameter of the cross-section of the bearing post 13 along a direction perpendicular to its axial direction to different sizes and gradually increasing, it can be adapted to smart rings 600 of different specifications and sizes.

[0044] In one embodiment, the housing 1 has a connecting surface 12 connected to the bearing post 13, and the included angle between the outer wall surface of the bearing post 13 and the connecting surface 12 is greater than 90° and less than 180°.

[0045] In this embodiment, as Figures 1 to 5 shown, the connecting surface 12 of the housing 1 is optionally perpendicular to the circumferential direction of the bearing post 13. By setting the included angle between the outer wall surface of the bearing post 13 and the connecting surface 12 to be greater than 90° and less than 180°, it is ensured that the outer wall surface of the bearing post 13 is inclined from the first end 132 to the second end 133, that is, the cross-sectional area of the bearing post 13 along a direction perpendicular to its axial direction gradually increases from the first end 132 to the second end 133.

[0046] In one embodiment, an installation cavity 11 is provided inside the housing 1, and the charging module 2 further includes a control board 22 disposed in the installation cavity 11, and the control board 22 is electrically connected to the first charging coil 21.

[0047] In this embodiment, as Figure 2 、 Figure 3 、 Figure 5 shown, by providing the installation cavity 11 inside the housing 1, it is convenient to install and fix the control board 22 of the charging module 2 by using the installation cavity 11. Optionally, the control board 22 can be a circuit board or a control circuit integrated on the circuit board and other structures. By electrically connecting the control board 22 to the first charging coil 21, it is convenient to control the current flowing into the first charging coil 21 by using the control board 22, which is not limited herein.

[0048] It is understandable that the installation cavity 11 of the housing 1 is directly communicated with the cavity 131 of the bearing column 13, that is, no structure is provided between the installation cavity 11 of the housing 1 and the cavity 131 of the bearing column 13. Of course, in order to avoid electromagnetic interference of the first charging coil 21 in the cavity 131 on the control board 22 in the installation cavity 11, a partition may be provided between the installation cavity 11 of the housing 1 and the cavity 131 of the bearing column 13, and through holes for lines or cables to pass through are only provided on the partition, facilitating electrical connection between the control board 22 and the first charging coil 21 through lines or cables, which is not limited herein.

[0049] Optionally, the housing 1 and the bearing column 13 are of an integrally formed structure. Such a setting can simplify the structural processing steps of the wireless charging structure 100 and improve the structural strength. Of course, for the convenience of installing the first charging coil 21 and the control board 22 of the charging module 2, the housing 1 and the bearing column 13 can also adopt a detachable connection method, which is not limited herein.

[0050] It should be noted that for the convenience of installing the first charging coil 21 and the control board 22 of the charging module 2 and improving the sealing performance at the same time, the housing 1 and the bearing column 13 are of an integrally formed structure, and an opening and a structure such as a mounting plate or a plugging plate for sealing the opening are provided on the side of the housing 1 facing away from the bearing column 13, which is not limited herein.

[0051] In an embodiment, the first charging coil 21 is provided on the inner wall of the cavity 131 and extends from the first end 132 to the second end 133. It is understandable that the first charging coil 21 can be installed and fixed by fixing the first charging coil 21 to the inner wall of the cavity 131 of the bearing column 13. Optionally, the first charging coil 21 is bonded to the inner wall of the cavity 131 or fixed to the inner wall of the cavity 131 by other means, which is not limited herein.

[0052] In an embodiment, the charging module 2 further includes a support member 23 provided in the cavity 131, and the first charging coil 21 is wound around the outer wall of the support member 23 and extends from the first end 132 to the second end 133.

[0053] In this embodiment, as Figure 2 、 Figure 3 and Figure 5 shown, by providing the support member 23 in the cavity 131 of the bearing column 13, the first charging coil 21 is installed and fixed by means of the support member 23. Optionally, the first charging coil 21 is wound around the outer wall of the support member 23 and extends from the first end 132 to the second end 133. Optionally, the first charging coil 21 is attached to the outer wall of the support member 23.

[0054] It can be understood that the extension length of the support member 23 in its axial direction is greater than or equal to the extension length of the first charging coil 21 in the axial direction of the support member 23. This can ensure the installation and fixation of the first charging coil 21. Optionally, the outer wall surface of the support member 23 is parallel to the outer wall surface of the bearing column 13. In this embodiment, the outer contour of the support member 23 is tapered. Of course, in other embodiments, the outer contour of the support member 23 can also be cylindrical, elliptical cylindrical, polygonal columnar, etc., which is not limited herein.

[0055] In one embodiment, as Figure 2 、 Figure 3 and Figure 5 shown, the support member 23 has a top end 231 adjacent to the first end 132 and a bottom end 232 adjacent to the second end 133, and the cross-sectional area of the support member 23 in a direction perpendicular to its axial direction gradually increases from the top end 231 to the bottom end 232.

[0056] Optionally, the material of the support member 23 is a metal material, so as to improve the heat dissipation of the first charging coil 21. Of course, in other embodiments, the material of the support member 23 is a non-metal material, which is not limited herein.

[0057] In one embodiment, the support member 23 is optionally made of a magnetic conductive material. Optionally, the support member 23 is an iron core or a charging iron core with ferrite or other materials added as the magnetic conductive material, which is not limited herein.

[0058] It can be understood that by setting the support member 23 as a magnetic conductive structure, the wireless charging efficiency can be increased. At the same time, since the first charging coil 21 is wound around the outer surface of the support member 23, the iron core made of metal material can be an important heat dissipation means for the first charging coil 21, ensuring that the temperature requirement is met while increasing the charging power.

[0059] In this embodiment, as Figure 2 、 Figure 3 and Figure 5 shown, the support member 23 can be an iron core structure.

[0060] Optionally, the first charging coil 21 can be wound around the outer wall of the support member 23 in one layer or multiple layers, which is not limited herein. Of course, from the top end 231 to the bottom end 232, the first charging coil 21 on the outer wall of the support member 23 can be an integral annular structure formed in one piece; or, from the top end 231 to the bottom end 232, the first charging coil 21 on the outer wall of the support member 23 can be multiple annular structures, which is not limited herein.

[0061] In one embodiment, the wireless charging structure 100 further includes an indicator light 3 provided on the housing 1, and the indicator light 3 is electrically connected to the control board 22.

[0062] In this embodiment, asFigures 1 to 5 As shown, by setting the indicator light 3, the indicator light 3 is electrically connected to the control board 22, so as to use the indicator light 3 to indicate the charging status of the smart ring 600. For example, when the indicator light 3 is red, the smart ring 600 is charging; when the indicator light 3 is green, the smart ring 600 has completed charging, etc., which is specifically set according to the actual situation and is not limited herein.

[0063] In one embodiment, the wireless charging structure 100 further includes a connector 4 provided on the housing 1, and the connector 4 is electrically connected to the control board 22. The connector 4 is used to connect to an external circuit.

[0064] In this embodiment, as Figures 1 to 5 shown, by setting the connector 4, the external circuit is connected and conducted to the wireless charging structure 100 through the connector 4, so as to realize passing current through the first charging coil 21, which is not limited herein. It can be understood that the connector 4 can be a cable structure, a plug connector or a USB structure, etc., which is not limited herein.

[0065] In one embodiment, the wireless charging structure 100 further includes a power supply 5 provided in the housing 1, and the power supply 5 is electrically connected to the control board 22.

[0066] In this embodiment, as Figure 2 、 Figure 3 、 Figure 5 shown, by the power supply 5 in the housing 1, the power supply 5 is electrically connected to the control board 22, so as to use the power supply 5 to supply power to the wireless charging structure 100. It can be understood that the power supply 5 can be connected to the connector 4, so that the power supply 5 is connected to the external circuit through the connector 4, so as to supply power or charge the power supply 5, etc., which is not limited herein.

[0067] In this embodiment, the smart ring 600 includes a housing 610, a charging component 620 and a detection component 630. The housing 610 is arranged in a ring shape and forms a wearing space 614 for wearing. An accommodation cavity 611 is provided in the housing 610, and the charging component 620 and the detection component 630 are arranged in the accommodation cavity 611, and the charging component 620 is electrically connected to the detection component 630.

[0068] It can be understood that the housing 610 of the smart ring 600 provides protection and support for components such as the charging component 620 and the detection component 630. In this embodiment, as Figure 5 and Figure 6As shown, the outer shell 610 includes a connected outer cover 612 and an inner ring 613. The outer cover 612 and the inner ring 613 cooperate to form a receiving cavity 611, and a wearing space 614 is formed on the side of the inner ring 613 facing away from the outer shell 610. Optionally, the material of the inner ring 613 is different from that of the outer cover 612. The outer cover 612 is used for the support and protection of the smart ring 600. The material of the outer cover 612 is metal or aluminum alloy, that is, generally a material with good skin-friendliness, small weight, and high strength such as titanium alloy. The material of the inner ring 613 is epoxy resin glue, that is, generally a complete circular lining made by using epoxy resin glue as a filler and shaping with a mold, which wraps and protects key components such as the circuit of the smart ring 600 and contacts the skin at the same time.

[0069] In this embodiment, as Figure 5 and Figure 6 shown, the charging component 620 includes a second charging coil 621, a circuit board 622, and a battery component 623 disposed in the receiving cavity 611. The second charging coil 621 is disposed around the wearing space 614 and is electrically connected to the circuit board 622, and the circuit board 622 is electrically connected to the battery component 623. The detection component 630 includes a PPG module and / or an ECG module. Optionally, the circuit board 622 is a flexible circuit board, which is not limited herein.

[0070] It can be understood that the second charging coil 621 is formed by winding a thin copper wire into a circular ring. The second charging coil 621 is attached to the inner surface of the outer cover 612 of the outer shell 610 and is connected to the circuit board 622, which is not limited herein.

[0071] In this embodiment, the charging process of the wireless charging structure 100 for the smart ring 600 is as follows: When an alternating current is applied to the first charging coil 21 of the wireless charging structure 100, due to the principle of electromagnetic induction, a changing magnetic field is generated in the iron core (supporting member 23), and again due to the principle of electromagnetic induction, the changing magnetic field will generate an induced current in the second charging coil 621 of the smart ring 600. By controlling the current parameters in the first charging coil 21, such as frequency, current, voltage, etc., the current generated in the second charging coil 621 in the smart ring 600 can be controlled.

[0072] It can be understood that using the magnetic circuit generated by adding an iron core can greatly reduce the risk of magnetic leakage. Also, due to the presence of the iron core, appropriately reducing the frequency of the alternating current can reduce problems such as electromagnetic interference and eddy current heating.

[0073] It should be noted that during the charging process of the wireless charging structure 100 for the smart ring 600, the charging coil continuously sends a specific signal at a relatively low frequency. After the smart ring 600 is placed and the coil of the smart ring 600 receives the signal from the coil of the wireless charging structure 100, the charging management chip will identify the charging status, notify the processor to start charging, and output current to the battery. At the same time, it will continuously monitor the battery power; when the battery power reaches the standard, the battery management chip will notify the processor to stop charging and use the information transmission module to send a message to the user to remind that it is fully charged.

[0074] It can be understood that the control board 22 of the wireless charging structure 100 is provided with structures such as a processor, a charging management chip, a sensor, etc. For specific reference, refer to the existing wireless charging technology and will not be limited here.

[0075] In this embodiment, the wireless charging structure 100, compared with the current common charging device products for smart rings on the market, realizes the purpose of corresponding to multiple specifications of smart rings 600, facilitating the general use of users; at the same time, it changes the wireless charging method of the smart ring 600, greatly improving the charging efficiency. The currently used wireless charging method often needs to increase the alternating current frequency of charging to make up for the pursuit of a smaller volume of the charging coil. By using the special cooperation method between the smart ring 600 and the wireless charging structure 100, an iron core is added, the magnetic leakage problem is reduced, the charging frequency can be lowered, and thus a number of problems caused by wireless charging are optimized.

[0076] The present invention also proposes a wireless charging device, which includes the above-mentioned wireless charging structure 100. The specific structure of the wireless charging structure 100 refers to the foregoing embodiment. Since this wireless charging device adopts all the technical solutions of all the foregoing embodiments, it at least has all the beneficial effects brought by the technical solutions of the foregoing embodiments, and will not be elaborated here one by one.

[0077] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural transformations made under the concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A wireless charging structure, characterized in that, For charging a smart ring, the smart ring having a wearing space for wearing, the wireless charging structure comprising: A housing provided with a supporting post, the supporting post having a cavity therein, the supporting post being capable of passing through the wearing space; and A charging module, the charging module including a first charging coil disposed in the cavity, the first charging coil being configured to charge the smart ring sleeved on the supporting post; Wherein, the supporting post has a first end remote from the housing and a second end close to the housing, and the cross-sectional area of the supporting post in a direction perpendicular to its axial direction gradually increases from the first end to the second end.

2. The wireless charging structure according to claim 1, wherein The supporting post is tapered; Or, the outer surface of the supporting post is at least one of a plane, a convex arc surface, and a concave arc surface from the first end to the second end.

3. The wireless charging structure according to claim 1, wherein, The cross-section of the supporting post in a direction perpendicular to its axial direction is circular, and the diameter of the circle ranges from 0 to 100 mm; And / or, the housing has a connecting surface connected to the supporting post, and the included angle between the outer wall surface of the supporting post and the connecting surface is greater than 90° and less than 180°.

4. The wireless charging structure according to claim 1, characterized in that The first charging coil is disposed on the inner wall of the cavity and extends from the first end to the second end.

5. The wireless charging structure according to claim 1, characterized in that, An installation cavity is provided in the housing, and the charging module further includes a control board disposed in the installation cavity, the control board being electrically connected to the first charging coil.

6. The wireless charging structure according to claim 5, wherein, The charging module further includes a support member disposed in the cavity, the first charging coil being wound around the outer wall of the support member and extending from the first end to the second end.

7. The wireless charging structure according to claim 6, wherein The outer wall surface of the support member is parallel to the outer wall surface of the supporting post; And / or, the support member has a top end adjacent to the first end and a bottom end adjacent to the second end, and the cross-sectional area of the support member in a direction perpendicular to its axial direction gradually increases from the top end to the bottom end; And / or, the extension length of the support member in its axial direction is greater than or equal to the extension length of the first charging coil in the axial direction of the support member; And / or, the material of the support member is a metal material or a non-metal material.

8. The wireless charging structure according to claim 6, wherein The support member is an iron core structure.

9. The wireless charging structure according to claim 5, wherein The wireless charging structure further includes an indicator light disposed on the housing, the indicator light being electrically connected to the control board; And / or, the wireless charging structure further includes a connector disposed on the housing, the connector being electrically connected to the control board, and the connector being used for connecting to an external circuit; And / or, the wireless charging structure further includes a power source disposed in the housing, the power source being electrically connected to the control board.

10. A wireless charging device, characterized in that, The wireless charging device includes the wireless charging structure according to any one of claims 1 to 9.

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