Intelligent ring

Abstract

The utility model discloses an intelligent ring. A shell is provided with a first through hole and a containing cavity. The flexible circuit board assembly is located in the containing cavity, a processor and a wireless transceiver are arranged on the flexible circuit board assembly, and the wireless transceiver is configured to communicate with at least one external device; the battery is positioned in the accommodating cavity, is electrically connected with the flexible circuit board assembly and supplies power to the processor and the wireless transceiver; the trigger assembly is electrically connected with the flexible circuit board assembly; the cover seat is hermetically connected with the shell, the trigger assembly comprises a contact part, an electric sensing part and a button switch, and at least part of the contact part is exposed relative to the cover seat; the contact part is configured to rotate relative to the shell so as to trigger the electric sensing part and execute a first operation on external equipment; the contact part is further configured to perform first movement towards the direction of the first through hole to trigger the button switch and execute second operation on the external equipment; the first operation is different from the second operation, and the user interaction operation efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the field of wearable devices, and in particular to a smart ring. Background Art

[0002] Near-eye display (NED) includes VR (Virtual Reality), AR (Augmented Reality), MR (Mixed Reality), XR (Extended Reality), etc. NED can create virtual images in the field of view of one eye or two eyes. NED renders light field information to the human eye through a display device placed within the non-clear vision distance of the human eye, and then reconstructs the virtual scene in front of the eyes.

[0003] When using the above-mentioned devices, relevant interactive operations are often required, such as sliding, switching, confirming, etc. Most existing devices directly set mechanical buttons on the near-eye device shell itself to achieve interactive control. However, when it is difficult or difficult for users to free their hands, the above-mentioned interactive operation methods are more difficult, especially in complex and changeable real-life environments, such as rain, exercise and other scenes. The resulting operation and device problems bring inconvenience to users. On the other hand, the demand for wearable devices that are more easily compatible with hands is also increasing, and the production cost also needs to be considered. Utility Model Content

[0004] The present application provides a smart ring to solve at least one related technical problem, such as the incompatibility of existing devices with hand operations.

[0005] To achieve the above technical effects, a technical solution adopted in the present application is to provide a smart ring, comprising: a housing having a first through hole, the first through hole being suitable for accommodating a wearer's finger, and the housing further having an accommodating cavity;

[0006] A flexible circuit board assembly is located in the accommodating cavity. A processor and a wireless transceiver are provided on the flexible circuit board assembly. The processor and the wireless transceiver are electrically connected. The wireless transceiver is configured to communicate with at least one external device.

[0007] A battery is located in the accommodating cavity, the battery is electrically connected to the flexible circuit board assembly and supplies power to the processor and the wireless transceiver;

[0008] a trigger assembly electrically connected to the flexible circuit board assembly, the trigger assembly being configured to receive physical contact from a finger and perform an operation on an external device; and

[0009] a cover base, sealed with the housing, wherein the trigger assembly includes a contact portion, an electric sensing portion, and a push button switch, and the contact portion is at least partially exposed relative to the cover base;

[0010] The contact portion is configured to rotate relative to the housing to trigger the electrical sensing portion and perform a first operation on the external device;

[0011] The contact portion is further configured to perform a first movement toward the first through hole to trigger the push button switch and perform a second operation on the external device; the first operation is different from the second operation.

[0012] The present application solution completely seals the cover and the shell, which can reduce the water from entering the smart ring through the assembly gap and improve the waterproof performance. In addition, the electric sensing part is triggered by rotation and the first operation on the external device is executed, while the first movement triggers the button switch and the second operation on the external device is executed; the first operation is different from the second operation, and the above rotation and movement are completed at the same position of the shell 10, which reduces the probability that the user often needs to press different positions to operate, and can improve the efficiency of remote interactive operations.

[0013] These and other features and advantages will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 This is a schematic diagram of the structure of an example of the smart ring communication system of the present application;

[0016] Figure 2 This is a structural diagram of an example of a smart ring in this application;

[0017] Figure 3 This is a schematic diagram of the exploded structure of an example of the smart ring of this application;

[0018] Figure 4 This is a structural diagram of an example of the inner shell of the smart ring of the present application;

[0019] Figure 5 This is a schematic structural diagram of an example of a flexible circuit board, battery, and trigger component of the smart ring of the present application;

[0020] Figure 6 This is a structural diagram of another example of the flexible circuit board, battery, and trigger component of the smart ring of the present application;

[0021] Figure 7 This is a structural diagram of an example of a button switch of the smart ring of the present application;

[0022] Figure 8 This is a structural diagram of another example of the smart ring of the present application;

[0023] Figure 9 This is a schematic cross-sectional view of an example of a smart ring in the present application;

[0024] Figure 10 This application is Figure 9 A schematic diagram of a partially enlarged structure in FIG;

[0025] Figure 11 This is a structural diagram of another example of the flexible circuit board, battery, and trigger component of the smart ring of the present application;

[0026] Figure 12 This is a schematic diagram of the exploded structure of another example of the smart ring of the present application;

[0027] Figure 13 This is a structural diagram of an example of an elastic support base of the smart ring of the present application;

[0028] Figure 14 This is a structural diagram of an example of a cross-section of the elastic support base of the smart ring of the present application;

[0029] Figure 15 This is a structural diagram of an example of the operation of the smart ring of the present application corresponding to the central angle of a circle. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0031] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended only to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting this application. If the specific orientation changes, the directional indication will also change accordingly. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance or to implicitly specify the number of the technical features indicated. Reference to an "embodiment" herein means that the specific features, structures, or characteristics described in connection with the embodiment may be included in at least one embodiment of this application. The appearance of such phrases in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments. The terms "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined. The term "and / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist; for example, A and / or B may mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B may be singular or plural. The character " / " generally indicates that the related objects are in an "or" relationship.

[0032] In this application, the word "exemplary" is used to mean "serving as an example, illustration or description". Any embodiment described in this application as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present application. In this application, "connection" can be a direct connection or an indirect connection; "electrical connection" can be electrical conductivity in the power-on state. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions; in the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope consistent with the principles and features disclosed in this application.

[0033] See also Figure 1-15 The present application provides a smart ring 100, including: a shell 10, provided with a first through hole 12, the first through hole 12 can be a polygon or a circle or a combination of an arc and a straight edge or an arc with a notch, etc. The first through hole 12 can accommodate the fingers of each wearer and is suitable for accommodating the fingers of the wearer. The shell 10 is also provided with a accommodating cavity 101; the accommodating cavity 101 is used to place various electrical components, etc. It can be understood that the shell 10 as a whole can be annular or an arc with an opening, etc. During the assembly or manufacturing process, the shell 10 can be constructed of multiple sub-shells. The accommodating cavity 101 is easy to see in the early stage of production and manufacturing. In the final product form, the excess gap in the accommodating cavity 101 can be partially or completely filled, for example, by using glue to partially or completely fill it. The above situations can be understood as the shell 10 being provided with the accommodating cavity 101.

[0034] The flexible circuit board assembly 20 is located in the accommodating cavity 101. A processor 22 and a wireless transceiver 24 are provided on the flexible circuit board assembly 20. The processor 22 and the wireless transceiver 24 can be spaced apart and electrically connected. The processor 22 can be a single-chip microcomputer or a microchip with processing, etc. The wireless transceiver 24 can adopt wifi, Bluetooth or 2.4G, etc. The wireless transceiver 24 can be composed of a patch antenna or a ceramic antenna, etc. The wireless transceiver 24 is configured to communicate with at least one external device 200, an external device 300. The external device 200 can be a near-eye or head-mounted device such as smart glasses, augmented reality devices, virtual reality devices or mixed reality devices that can present digital content. The external device 300 can include terminals such as smart phones, computers or tablets. In other embodiments, the external device 300 can also include terminals such as remote servers or databases.

[0035] In some embodiments, the smart ring 100 may further include a memory 28 electrically coupled to the processor 22, the memory 28 optionally including a high-speed random access memory, and optionally also including a non-volatile memory, such as one or more disk storage devices, flash memory devices, or other non-volatile solid-state memory devices. The processor 22 and the memory 28 may be one or more, respectively, and the one or more processors 22 run or execute various software programs and / or instruction sets stored in the memory 28 to perform various functions of the device 100 and process data, which may be sent to the external device 200, 300, thereby realizing interactive control of the external device. It can be understood that the smart ring 100 can communicate with the external device 200 to realize user interface interaction with, for example, a mobile phone, and the smart ring 100 and the external device 200 (such as a near-eye device) can communicate with each other to realize data transmission, interaction, etc., for example, realizing user interface interaction of the near-eye device without having to operate directly on the external device 200, 300 itself.

[0036] Battery 30 is located in cavity 101. It is electrically connected to the flexible circuit board assembly 20 and provides power to the processor 22 and wireless transceiver 24. Battery 30 can be a rechargeable battery, such as a rechargeable lithium battery, although disposable non-rechargeable batteries are also acceptable. Battery 30 can be curved, for example, arranged along the circumference of first through-hole 20.

[0037] The trigger assembly 40 is electrically connected to the flexible circuit board assembly 20 and is configured to receive physical contact from a finger and execute a first operation on the external device 200 or 300. The physical contact may include touching, scrolling, sliding, or pressing, and may include static or dynamic single-point, multi-point, continuous, or random contact. The first operation may implement an associated external device user graphical interface, such as dragging up and down, left and right, sliding, turning pages, confirming a selection, etc. For example, specific functions may include moving pages of the external device 200 and / or 300, adjusting the volume, playing / pausing, giving a like, long press / short press selection, etc. The first operation may be a static, dynamic, or combined static and dynamic user graphical interface display or functional interaction on the external device's graphical display interface. In some embodiments, the processor 22 and the wireless transceiver 24 may be located on either side of the trigger assembly 40, thereby reducing radio frequency interference from other electrical components on the transceiver 24.

[0038] The cover seat 50 is sealed to the housing 10. The material of the cover seat 50 and the material of the housing 10 can be the same or different. For example, a waterproof sealing rubber ring, adhesive fixation, glue filling, or secondary injection molding can be used to seal the cover seat 50 to the housing 10, thereby reducing the probability of water or the like entering the accommodating cavity 101 through the connection gap and causing damage to the internal electrical components such as the flexible circuit board assembly 20, the battery 30, and the trigger assembly 40. The trigger assembly 40 includes a contact portion 41 and an electric sensor portion 42. The projected area of ​​the cover seat 50 in the first direction A is larger than the projected area of ​​the contact portion 41 in the first direction A and allows the contact portion 41 to be physically contacted, thereby completely sealing the flexible circuit board assembly 20, the battery 30, and the electric sensor portion 42 in the accommodating cavity 101. It can be understood that the projected area can be a projection of the shape of the overall outer contour, the center can have a local hole, and the first direction A can be the radial direction of the first through hole 12, such as Figure 2 and 8As shown, the axial direction of the first through hole is B, and the radial and axial directions may be perpendicular to each other. In some embodiments, the first direction A may also be the direction from the outer periphery of the first through hole 12 to the center. The outer contour area of ​​the cover seat 50 can be larger than the outer contour area of ​​the contact portion 41, and the size of the cover seat 50 can be smaller than the size of the shell 10. From the circumference of the entire ring 100, the cover seat 50 can only occupy a part of the circumference of the shell 10, thereby greatly reducing the structural design of the cover seat 50 and reducing the production cost of the cover seat 50. During the assembly process of the ring 100, the flexible circuit board 20, the trigger assembly 40 and the battery can be placed in the accommodating cavity 101 first, and then the cover seat 50 can be assembled, and finally the cover seat 50 and the shell 10 are completely sealed. The above assembly can be done without fasteners such as screws, which can reduce the production cost and difficulty of the cover seat 50, improve assembly efficiency and reduce costs. In addition, the cover seat 50 can be sealed to fully cover the contact portion 41 in all directions through the sealing connection, for example, it can be fully covered in the circumferential and / or radial directions. Whether the wearer is sweating during exercise, washing hands or using it in a rainy environment, the above structure can reduce water from entering the smart ring 100 through the assembly gap and improve the waterproof performance.

[0039] In some embodiments, the trigger assembly 40 includes a contact portion 41, an electrical sensor portion 42, and a push button switch 46. The contact portion 41 is at least partially exposed relative to the cover 50. The contact portion 41 is configured to rotate relative to the housing 10 to trigger the electrical sensor portion 42 and perform a first operation on the external device 200 and / or device 300. The contact portion 41 is further configured to move toward the first through hole 12 to trigger the push button switch 46 and perform a second operation on the external device. The first operation is different from the second operation. The second operation is different from the first operation. For example, the first operation may be a non-functional interface operation related to content browsing, such as scrolling up and down, selecting up and down, left and right, or sliding, while the second operation may be a functional interface operation, such as yes / or, confirm, play, or pause. It is understood that the rotation and movement are both performed at the same location on the housing 10. That is, different actions can be performed at the same location on the housing 10 to perform different first and second operations on the external device. This reduces the probability that the user will frequently need to press different locations to perform operations, thereby improving the efficiency of remote interactive operations.

[0040] In some embodiments, the contact portion 41 is further configured to perform a second movement toward the first through hole 12 to trigger the button switch 46 and perform a third operation on the external device. The distance of the second movement is greater than the distance of the first movement, and the third operation is different from the second operation. For example, the first operation may be moving or sliding, the second operation may be currently selected (but not confirmed) but others are not yet selected, and the third operation may be final confirmation. Taking an interactive scenario of a camera application as an example, the first operation corresponding to rotating or sliding the contact portion 41 may be moving the shooting area on the camera application graphical interface, the second operation corresponding to the first movement triggering the button switch 46 may be preliminary focusing, and the third operation corresponding to the second movement triggering the button switch 46 based on the first movement may be final confirmation to take the photo. The rotation, first movement, and second movement correspond to the same area of ​​the cover seat 50. For example, from the perspective of the cover seat 50 being located in the circumferential direction of the first through hole 12, the above-mentioned rotation, first movement, and second movement all correspond to a part of the arc of the cover seat 50, such as a part of the arc of the cover seat 50. By concentrating all actions at the same position, the settings of buttons and other parts of the shell 10 can be effectively simplified, ensuring that the appearance of the ring is more streamlined.

[0041] In some embodiments, in conjunction with Figure 3 、 5 , 6, 9, 11 and 12, the flexible circuit board assembly 20 includes a flexible substrate 21 and a reinforcing plate 23 disposed on the substrate 21, wherein the reinforcing plate 23 has greater strength than the flexible substrate 21. The substrate 21 may be a straight-sided shape during early design or before being installed in the housing 10. The substrate 21 is configured to allow bending and is disposed circumferentially along the first through-hole 12, while the reinforcing plate 23 does not allow bending. There are multiple reinforcing plates 23 disposed at intervals along the circumference of the first through-hole 12. The reinforcing plates 23 may be made of an insulating material, thereby also reducing electrical contact between the flexible substrate 21 and the inner housing 14. The processor 22 and / or wireless transceiver 24 are located on the substrate 21 and supported by the reinforcing plate 23. No components may be disposed on the side of the reinforcing plate 23 facing away from the flexible substrate 21, thereby allowing the entire flexible substrate 21 to conform to the inner wall of the housing 10. It will be appreciated that the flexible circuit board assembly 20 is arranged as a whole along the circumference of the first through-hole 12. The processor 22, wireless transceiver 24, memory 28, and peripheral electrical components 26, such as capacitors, resistors, inductors, and light sources, are arranged on the flexible substrate 21 and electrically connected to each other, for example, through single-layer or multi-layer printed electrical conductors on the flexible substrate 21. The battery 30 can power the aforementioned electrical components. It will be appreciated that in order to reduce the risk of the solder joints of the aforementioned electrical components falling off due to bending of the flexible substrate 21 during assembly and use, a reinforcing plate 23 is added to the back of the flexible substrate 21 where the electrical components are located to prevent the aforementioned electrical components from being bent, thereby improving the electrical stability of the entire electrical component and reducing the risk of damage to the electrical components during assembly and subsequent use.

[0042] In some embodiments, in conjunction with Figure 8-12 The accommodating cavity 101 may further be provided with a first accommodating groove 102. The first accommodating groove 102 may have a flat bottom wall. The accommodating cavity 101 may be arranged as a whole or partially along the circumference of the first through hole 12. The first accommodating groove 102 may be arranged partially along the circumference of the first through hole 12. The first accommodating groove 102 may be rectangular or polygonal, etc. The first accommodating groove 102 may be connected to the accommodating cavity 101. The trigger assembly 40 further includes a button switch 46. The button switch 46 may be a micro switch or a bounce switch with a one-stage pressing stroke or a two-stage pressing stroke. Of course, it may also be a pressure-sensitive switch, etc. The button switch 46 is spaced apart and electrically connected to the processor 22. The button switch 46 is located in the first accommodating groove 10 2 is on a side away from the contact portion 41, and the contact portion 41 is at least partially exposed relative to the cover base 50. It can be understood that the cover base 50 can be provided with a through hole 52, and the contact portion 41 is exposed relative to the through hole 52. The contact portion 41 is configured to allow movement in the first direction A to trigger the pressing of the button switch 46 and perform the second operation on the external device 200, 300. Movement in the first direction A can be understood as directly pressing the contact portion 41 in the first direction A or in a direction toward the center of the first through hole 12, so that the contact portion 41 abuts against the button switch 46, thereby triggering the button switch. When the contact portion 41 is not pressed, the contact portion 41 can be restored to its initial position by the elastic member 407 or the spring inside the button switch 46.

[0043] In some embodiments, in conjunction with reference to Figure 8-14 The trigger assembly 40 may include an elastic support seat 44. The elastic support seat 44 may be made entirely of silicone, rubber, or other resilient materials. The elastic support seat 44 is disposed in the first receiving groove 102 and has a second receiving groove 443. The electrical sensing portion 42 includes a contact touch sensor 48, such as a capacitive or resistive touch sensor. The contact portion 41 includes a touch pad 47. The touch pad 47 may be made of glass, plastic, or other materials. The electrical sensing portion 42 and the contact portion 41 are disposed parallel to each other. The touch pad 47 is configured to receive a touch operation from a finger. The contact touch sensor 48 generates a signal based on the touch and performs a first operation on the external device 200 or 300. That is, when a finger contacts different areas of the touch pad 47, the capacitance or resistance value of the corresponding areas on the contact touch sensor 48 is affected. The processor 22 may transmit the value change of this area to the transceiver 24 and then to the external device 200 or 300, thereby implementing a first operation on the user interface of the external device. For details about the first operation, please refer to the relevant description of the above embodiment.

[0044] In some embodiments, continue to refer to Figure 8-14The trigger component 40 may further include an adhesive layer 43, which may be formed by curing glue or the like. The adhesive layer 43 is located between the contact portion 41 and the electrical sensing portion 42 and bonds the two together. A connecting column 401 is provided on the side of the contact portion 41 facing the electrical sensing portion 42. The adhesive layer 43 and the electrical sensing portion 42 are provided with a second through hole 403. The elastic support seat 44 is correspondingly provided with a hole 444. The number and size of the holes 444 and the second through hole 403 may be the same. The connecting column 401 is passed through the second through hole 403 and the hole to fix the contact portion 41 and the elastic support seat 44, and seal the button switch 46 in the second accommodating groove 443. Therefore, when the contact portion 41 is pressed, the risk of water entering the second accommodating groove 443 and damaging the button switch 46 is reduced. The push button switch 46 is located on the side of the electrical sensing portion 42 facing away from the contact portion 41 and is located within the second accommodating groove 443. The elastic support seat 44 is configured to receive pressure from a finger on the contact portion 41, thereby deforming and triggering the push button switch 46. It can be understood that the push button switch 46 is located on the side of the electrical sensing portion 42 facing away from the contact portion 41. After the contact portion 41 is pressed, the contact portion 41, the adhesive layer 43, the electrical sensing portion 42, and the push button switch 46 are pressed and squeezed by the elastic support seat 44. Because the contact portion 41, the adhesive layer 43, the electrical sensing portion 42, and the push button switch 46 are all rigid components and are not easily deformed by pressure, the deformation of the elastic support seat 44 is used to achieve the travel pressure of the push button switch 46.

[0045] In some embodiments, continue to refer to Figure 8-14The elastic support seat 44 may include a first surface 441 and a second surface 442 arranged opposite to the first surface 441. The circumference of the first surface 441 is used to support the electric sensing part 42 and the contact part 41. A second accommodating groove 443 is provided at the center of the first surface 441. The bottom wall of the second accommodating groove 443 is in contact with the button switch 46. On the orthographic projection area of ​​the second accommodating groove 443, the second surface 442 is provided with a convex portion 446 and a concave portion 445. The concave portion 445 is arranged around the convex portion 446. The convex portion 446 is arranged corresponding to the button switch 46, and the concave portion 445 is arranged The description is from the perspective of the second surface 442. The recess 445 can be a convexity when viewed from the first surface 441. In some embodiments, the recess 445 can be wavy. In some embodiments, the recess 445 can also include multiple concentrically arranged sections. The distance from the recess 445 to the bottom wall of the first accommodating groove 102 is greater than the distance from the protrusion 446 to the bottom wall of the first accommodating groove 102, wherein the protrusion 446 and the bottom wall of the first accommodating groove 102 can directly abut each other, and the first recess 445 is configured to deform after the contact portion 41 is pressed. The entire pressing process can be understood as follows: after pressing the contact part 41, the contact part 41, the adhesive layer 43, the electric sensing part 42 and the button switch 46 sink as a whole, and the recessed part 445 located at the periphery is deformed, causing the periphery of the second surface 442 to move as a whole toward the first accommodating groove 102, while the protrusion 446 corresponding to the button switch 46 still abuts against the bottom wall of the first accommodating groove 102 without moving. As the pressing continues, the stroke of the button switch 46 is pressed to realize the triggering of the electrical signal. When the finger no longer presses, the elastic deformation of the recessed part 445 is restored, and the contact part 41, the adhesive layer 43, the electric sensing part 42 and the button switch 46 as a whole return to their initial positions. It is understood that the present application utilizes the contact touch sensor 48 and the button switch 46 on different sides of the same axis, i.e., the button switch 46 is located on the back of the contact touch sensor 48. This allows touch and press operations to be performed in the same area, enabling different interactive operations with external devices without requiring the button switch 46 to be separately spaced from the touch assembly 40. This fully utilizes the internal space and makes the overall structure of the ring more streamlined. Furthermore, during the pressing process, the cover 50 is not moved by the pressing, and the cover 50 and the housing 10 maintain a sealed connection. Therefore, the pressing process is still not easily affected by the ingress of water or the like that may affect the internal battery 30 and circuit board assembly 20.

[0046] In some embodiments, in conjunction with Figure 15The contact portion 41 and the electrical sensing portion 42 are arranged along the circumference of the first through hole 12. It can be understood that the contact portion 41 and the electrical sensing portion 42 are located in the same radial direction, and the contact portion 41 and the electrical sensing portion 42 are not spaced apart along the circumference of the first through hole 12. The central angle θ corresponding to the arc of the contact portion 41 and the electrical sensing portion 42 ranges from 25° to 90°, such as 25°, 30°, 45°, 60°, 75°, 80°, 90°, etc., and the button switch 46 includes one, that is, for the contact portion 41 with a shorter arc, in some embodiments, the contact portion 41 and the electrical sensing portion 42 can both be arc-shaped, and a button switch 46 can be provided on the side of the electrical sensing portion 42 away from the contact portion 41, so as to ensure that the overall volume is small.

[0047] In some embodiments, the central angle θ corresponding to the arc of the contact portion 41 and the electrical sensing portion 42 is respectively between 60° and 90°, for example, 60°, 66°, 70°, 76°, 80°, 85°, 90°, etc., and the button switches 46 include more than two, each of which is evenly spaced along the circumference of the first through hole 12, wherein each button switch 46 has the same function. It can be understood that a longer arc can increase the area touched by the finger and improve the accuracy of the interaction process. In addition, multiple button switches 46 arranged at intervals can ensure that the finger can be pressed at any contact portion 41 to achieve the same function. It can be understood that the degree of the central angle θ in the above embodiment can fluctuate within a certain range according to actual needs, and will not be listed in detail here.

[0048] In some embodiments, in conjunction with Figure 2-7 The trigger assembly 40 of the finger ring 100 of the present embodiment also includes a support plate 27. The support plate 27 can be made of a rigid material and can be stronger than the flexible substrate 21. The support plate 27 can also have the same rigidity and thickness as the reinforcing plate 23. The area of ​​the support plate 27 can be larger than that of the reinforcing plate 23, thereby fully supporting the electric sensor 42 and the push button switch 46. The support plate 27 is connected to the flexible substrate 21 and is located in the first receiving groove 102. The first receiving groove 102 can have a flat bottom wall to adapt to the flat support plate 27. The electric sensor 42 and the push button switch 46 are electrically connected to the flexible substrate 21 and supported by the support plate 27, which can ensure that the electrical welding installation of the electric sensor 42 and the push button switch 46 is more secure.

[0049] The contact part 41 may also include a sphere 410, a rotating part 420 and a magnet 430. The sphere 410 may be made of a resin or plastic with a translucent material, its diameter may be between 5mm-6mm, and its surface has a roughness, for example, 3-120μm, etc. The rotating part 420 may be cylindrical or roughly cylindrical, and the rotating part 420 may be provided with a roughness of 3-120μm. The end of the rotating part 420 may be connected to the magnet 430, and the magnet 430 may be cylindrical or roughly cylindrical.

[0050] In some embodiments, referring to Figure 3-7 The support plate 27 is provided with a first hole 270, and the charging interface 25 is electrically connected to the flexible substrate 21 through the first hole 270. The charging interface 25 is located on the side of the support plate 27 away from the contact portion 41 and the electrical sensing portion 42; it can be understood that since the button switch 46 is located on the side of the support plate 27 facing the contact portion 41 and the electrical sensing portion 42, the charging interface 25 can be provided on the side of the support plate 27 away from the contact portion 41 and the electrical sensing portion 42, thereby making full use of the overall space. In addition, since the processor 22 and the transceiver 24 are respectively located on both sides of the trigger component 40, compared with the charging interface being set at the far end position in other circumferential directions, setting the charging interface 25 directly below the support plate 27 (or the trigger component 40) can effectively shorten the electrical trace wiring and improve electrical stability. In addition, concentrating the charging port 25 and other electrical components can effectively reduce the possibility of the overall thickness being too thick due to setting the charging port 25 at other positions in the circumference, ensure that the thickness of the entire shell 10 in the circumferential direction has a gradient aesthetic appearance, and effectively avoid the problem of maintaining a uniform thickness in order to be compatible with the thickness at other positions. The overall weight and volume are larger.

[0051] Continue to refer to Figure 3-7 In the first direction, which may be a direction along the radial direction of the first through hole 12 or toward the center of the first through hole 12, the charging interface 25 does not overlap with the button switch 46 and the electric sensor portion 42. The charging interface 25 includes a metal column 250, which protrudes in a direction away from the support plate 27. During charging, for example, when charging is performed using the metal column 250, the physical contact of the charging interface 25 with the external charging base will not cause physical compression to the electrical welding points of the button switch 46 and the electric sensor portion 42 on the back, thereby effectively improving the stability of the welding points of the button switch 46, the electric sensor portion 42, and the metal column 250 located on different sides of the flexible substrate 21, and is not likely to cause loosening or damage to the corresponding electrical welding points, thereby extending the service life of the above-mentioned electrical components.

[0052] In some embodiments, no electrical components are installed on the side of the flexible substrate 21 of the push button switch 46 and the electrical sensor portion 42 in the area corresponding to the metal pillar 250 in the first direction. This ensures that the metal pillar 250 does not loosen or damage the electrical solder joints of any related electrical components during the charging process.

[0053] In some embodiments, referring to Figure 4 The inner shell 14 includes a positioning post 142 and a third through-hole 143. The support plate 27 is provided with a second hole 232, connecting the positioning post 142 and the second hole 232. The charging port 25 passes through the third through-hole 143 and is exposed at least relative to the inner shell 14. A flow guide 144 is also provided on the side of the third through-hole 143. The flow guide 144 communicates with the third through-hole 143 and is used to fill it with a sealing material. The sealing material can be resin or glue, etc. The flow guide 144 ensures that the entire third through-hole 143 is completely sealed by the sealing material, effectively improving the waterproof performance of the ring 100.

[0054] In some embodiments, the electrical sensing unit 42 includes a magnetic sensor 45 electrically connected to the processor 22. The position of the magnetic sensor 45 corresponds to the magnet 430. The magnetic sensor 45 may include a Hall sensor. The button switch 46 and the magnetic sensor 45 are connected to the flexible substrate 21 in the positive projection area of ​​the support plate 27. The sphere 410 is at least partially exposed relative to the cover seat 50. The cover seat 50 may be provided with a through hole 52. The sphere 410 is at least partially exposed relative to the through hole 52 so as to allow contact operations such as rotation or pressing by a finger. The sphere 410 is configured to receive the rotation operation of the finger and drive the rotating part 420 in contact with the sphere 410 to rotate, and drive the magnet 430 to rotate and change the magnetism. The magnetic sensor 45 generates a signal based on the magnetic change of the magnet 430. The signal can be sent to the external device through the transceiver 24, thereby executing the first operation on the external device 200, 300, such as pulling up and down pages, turning pages, confirming selection, etc. It can be understood that when the sphere 410 and the rotating part 420 have rough surfaces in contact, the rotation of the sphere 410 will drive the rotation of the rotating part 420, thereby driving the magnet 430 at the end to rotate, thereby changing the magnetic change of the magnetic sensor 45 and then outputting a specified signal to the external device, thereby realizing interactive control of the external device.

[0055] In some embodiments, continue to refer to Figure 2-7The trigger assembly 40 also includes an upper shell 411 and a lower shell 440 connected to each other. The sphere 410, the upper shell 411 and the lower shell 440 can be made of a material with strong rigidity, such as resin or plastic, etc. The sphere 410 is located in the internal space formed by the upper shell 411 and the lower shell 440. The sphere 410 is at least partially exposed relative to the upper shell 411. The lower shell 440 is also provided with a fixing column 4401, and a fixing hole 231 is provided on the support plate 27; the magnet 430, the rotating part 420, and the magnetic sensor 45 respectively include multiple, the sphere 410 can be surrounded by multiple magnets 430, the rotating part 420 can be four surrounded in a quadrilateral, and the magnet 430 is four and arranged At the end of each rotating portion 420, an upper shell 411 and a lower shell 440 surround the sphere 410, the magnet 430, and the rotating portion 420, with the magnet 430 exposed relative to the upper shell and the lower shell. In some embodiments, the trigger assembly 40 may further include a spring 407 located directly below the sphere 410, thereby facilitating the user's sense of the touch of pressing the button switch 46. The button switch 46 is located in the middle of the plurality of magnetic sensors 45, and the button switch 46 is located below the sphere 410. The support plate 27 is provided with four magnetic sensors 45 arranged at intervals. The lower shell 440 is penetrated by fixing holes 231 through fixing columns 4401 to fix the lower shell 440 and the support plate 27. Each magnet 430 is located directly above each magnetic sensor 45 on the flexible substrate 21 on the projected area of ​​the support plate 27. When the ball 410 rotates, it contacts the corresponding rotating portion 420, which drives the corresponding magnet 430 to rotate relative to the corresponding magnetic sensor 45, thereby generating a changing signal, which is then processed by the processor 22 and transmitted to the external device by the transceiver 24. When the user presses the ball 410, because the ball 410 and the button switch 46 are located on the same side of the support plate 27, the ball 410 can abut the button switch 46 to implement a second operation. The interactive function of the second operation can be different from the interactive function of the first operation. For example, the first operation is to select yes / no, and the second operation is the final confirmation of the selected yes / no.

[0056] In some embodiments, the smart ring 100 also includes a light source 450, which may include a light-emitting diode, etc. The light source 450 and the button switch 46 are arranged at intervals. The light source 450 is electrically connected to the flexible substrate 21 and is located below the sphere 410. The sphere 410 includes a translucent material, and the light source 450 is configured to generate light passing through the sphere 410; thereby, the sphere 410 can be more easily identified, and the operating functions of the sphere 410 can be set to different colors. For example, the function corresponding to the luminous color can be defined through the interactive interface of the external device 200 or 300. In other embodiments, the different colors of the luminous light source 450 can also be used to reflect the different power levels or charging status of the battery 30, which is convenient for the user to perceive.

[0057] See also Figure 7The button switch 46 may further include a first press trigger and a second press trigger along the first direction, the first press trigger executing the second operation on the external device 200, 300, and the second press trigger executing the third operation on the external device 200, 300, the first operation, the second operation and the third operation are different, it can be understood that the first surface of the flexible substrate 21 is provided with an electrical connection point D, a connection point E, and a connection point F, and the second surface of the flexible substrate 21 is provided with corresponding electrical connection points D', a connection point C, and a connection point F', wherein the connection point F and the connection point F' can be kept connected, and the connection point D' is kept connected to the connection point D; when the first press trigger is pressed, the ball 410 descends and overcomes the resistance of the upper spring 408, and The electrical connection points D, E, and F are all connected, and can be converted into digital signals such as 111 through analog-to-digital conversion. At this time, the connection points D', C, and F' below are not connected, and the generated digital signal is 101. If you continue to press to achieve the second press trigger, the connection points D', C, and F' below are connected to form a digital signal 111. Therefore, when the processor generates two digital signals 111, it realizes the transition from the first trigger to the second trigger. Interactive operations can be set as needed. For example, the first operation can be sliding, the second operation can be the current selection (but not confirmed) but others are not selected for the time being, and the third operation can be the final confirmation.

[0058] In some embodiments, combined Figure 5-6 9-11. The flexible circuit board assembly 20 may also be provided with a charging interface 25 electrically connected to the processor 22. The charging interface 25 can charge the battery 30. The charging interface 25 may include a wired or contact charging interface or a wireless charging interface, etc. In some embodiments, the charging interface 25 may adopt USB-A, USB-C, or contacts, etc. The wireless charging interface may be a wireless induction coil. In some embodiments, the charging interface 25 may also be provided with magnetic members (not shown) at intervals to facilitate magnetic attraction with an external charging cable or charging box, facilitating stable charging. The charging interface 25 is connected to the side of the flexible substrate 21 facing away from the reinforcing plate 23. The charging interface 25 and the trigger assembly 40 are spaced apart, and the charging interface 25 faces the first through hole 12. This allows the first through hole 12 to be adapted to the external protrusion, achieving stable charging.

[0059] In some embodiments, the shell 10 further includes an inner shell 14 and an outer shell 16. The inner shell 14 is formed with a first through hole 12, and the outer shell 16 is located on the outer periphery of the inner shell 14 to form a accommodating cavity 101. In some embodiments, the inner shell 14 may also be formed with an accommodating cavity 101 and a first accommodating groove 102. The outer shell 16 is provided with a notch 161 corresponding to the first accommodating groove 102 in the first direction. It can be understood that the notch 161 can be formed in advance through mold opening. If, for example, resin curing or secondary injection molding is used to finally form the shell 16, in this case, the structure of the notch 161 should be understood as the shell 16 is not a complete ring. It depends on the specific assembly method of the whole machine. However, the outer shell 16 can be understood as an incomplete ring with a notch 161 from the overall structure. The cover seat 50 will be located in the notch 161 to achieve complete sealing. In some embodiments, the inner shell 14 and / or the outer shell 16 can be made of transparent or light-transmitting materials, so that the user can directly see the internal electrical components, thereby enhancing the overall visual beauty. The projected areas of the contact portion 41, the electrical sensor portion 42, and the push button switch 46 in the first direction are all smaller than the outer contour area of ​​the notch 161, thereby facilitating assembly of the contact portion 41 and the electrical sensor portion 42. The cover 50 seals and secures the notch 161, isolating the flexible circuit board assembly 20 and the battery 30 from the external environment. For example, by sealing the gaps through glue potting or curing, the gaps are sealed, effectively preventing water from entering the flexible circuit board assembly 20, the battery 30, and other electrical components within the accommodating cavity 101 through the notch, thereby improving waterproof performance and ensuring overall stability. In some embodiments, the inner housing 14 can be pre-molded to have the accommodating cavity 101 and the first accommodating groove 102, and the cover 50 can also be pre-molded. After the battery 30, the circuit board assembly 20, and the trigger assembly 40 are installed in the inner housing 14, the cover 50 is placed on top to pre-fix them. Finally, glue potting is performed to form the outer housing 16, thereby completing the sealed connection. In another embodiment, the inner shell 14, the outer shell 16 and the cover seat 50 are all pre-formed into parts by molds, cutting or machining, and then the battery 30, the circuit board assembly 20 and the trigger assembly 40 are installed to the inner shell 14, and then the outer shell 16 is placed on the inner shell 14, and the cover seat 50 is finally covered with the gap 161. Finally, the gaps between the cover seat 50 and the outer shell 16, and the gaps between the inner shell 14 and the outer shell 16 are completely sealed by gluing or sealing to achieve overall waterproofing.

[0060] In some embodiments, in conjunction with Figure 12 The inner shell 14 may include a third through hole 103, and the charging interface 25 includes a metal contact or a metal socket. The charging interface 25 passes through the third through hole 103 and is exposed at least relative to the inner shell 14, so as to facilitate charging of the battery 30.

[0061] In some other embodiments, referring to Figure 4The inner shell 14 includes a positioning column 142 and a third through hole 143, and the positioning column 142 is fixedly connected to the trigger assembly 40, wherein the number of the positioning column 142 can be one or more, and a notch or a second hole 232 is provided in the circumference of the support plate 27. The charging interface 25 includes a metal socket or a metal contact. The charging interface 25 passes through the third through hole 143 and is exposed at least relative to the inner shell 14. The charging interface 25 can be charged through a wire or contact or an external charging seat (box). The charging interface 25 and the contact portion 41 are located in the first direction, that is, the charging interface 25 and the contact portion 41 are coaxially arranged, so as to facilitate the spatial structure layout. In some embodiments, the charging interface 25 and the contact portion 41 are arranged at intervals along the circumference of the first through hole 12.

[0062] In some application scenarios, if the charging port 25 and the contact portion 41 are spaced circumferentially from the first through hole 12, the electrical wire connection will be too long. In addition, the separate charging port 25 may easily cause the thickness of the housing 10 to be too thick. In addition, since the thickness of the ring housing 10 needs to be consistent throughout the entire circumference, it is easy for the overall appearance to be inconsistent due to the local thickness, or the entire circumferential thickness may be too thick to adapt to the local thickness. In some embodiments, in conjunction with reference to Figure 3-6 A first hole 270 is provided on the side of the support plate 27 facing away from the button switch 46. The charging interface 25 can be located in the first hole 270 and electrically connected to the flexible substrate 21. That is, the side of the support plate 27 facing away from the button switch 46 is non-conductive. In order to layout electrical components there, the first hole 270 needs to be opened in the support plate 27, thereby allowing the electrical components to be electrically connected to the flexible substrate 21 and to the processor 22, battery 30, etc. In some embodiments, the number of the first hole 270 may be one, and the charging interface 25 may include a wireless induction coil (not shown) located in the first hole 270 and electrically connected to the flexible substrate 21; in other embodiments, the number of the first holes 270 may be two, for example, the charging interface 25 may include positive and negative metal pillars 250 located in corresponding first holes 270 and electrically connected to the flexible substrate 21, and the metal pillars 250 may extend toward a side away from the button switch 46. In some embodiments, the inner shell 14 may be provided with a corresponding number of through holes 143, and the metal pillars 250 may be exposed relative to the through holes 143, thereby facilitating charging with an external charging base.

[0063] The relevant examples in the illustrations of this application (such as Figure 10 ) Although there are some gaps in the drawings, they are merely simple examples for facilitating understanding of the overall assembly sequence or the material combination of different components. Those skilled in the art will appreciate that, after actual production and packaging, the gaps mentioned above are invisible or almost invisible to the naked eye.

[0064] It is understandable that the smart ring provided in the embodiment of the present application may also include one or a combination of life sign sensors, position sensors, vibration sensors or inertia sensors, which can provide additional feedback or operation related functions.

[0065] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A smart ring (100), characterized in that: include: The housing (10) is provided with a first through hole (12), wherein the first through hole (12) is suitable for accommodating a wearer's finger, and the housing (10) is further provided with an accommodating cavity (101); A flexible circuit board assembly (20) is located in the accommodating cavity (101), a processor (22) and a wireless transceiver (24) are provided on the flexible circuit board assembly (20), the processor (22) and the wireless transceiver (24) are electrically connected, and the wireless transceiver (24) is configured to communicate with at least one external device (200, 300); a battery (30) located in the accommodating cavity (101), the battery (30) being electrically connected to the flexible circuit board assembly (20) and supplying power to the processor (22) and the wireless transceiver (24); a trigger assembly (40) electrically connected to the flexible circuit board assembly (20), the trigger assembly (40) being configured to receive physical contact from a finger and perform an operation on an external device (200, 300); and a cover seat (50) sealedly connected to the housing (10), wherein the trigger assembly (40) includes a contact portion (41), an electric sensing portion (42) and a push button switch (46), and the contact portion (41) is at least partially exposed relative to the cover seat (50); The contact portion (41) is configured to rotate relative to the housing (10) to trigger the electrical sensing portion (42) and perform a first operation on the external device; The contact portion (41) is further configured to perform a first movement toward the first through hole (12) to trigger the button switch (46) and perform a second operation on the external device; the first operation is different from the second operation.

2. The smart ring (100) according to claim 1, characterized in that The contact portion (41) is further configured to perform a second movement toward the first through hole (12) to trigger the button switch (46) and perform a third operation on the external device, wherein the distance of the second movement is greater than the distance of the first movement, the third operation is different from the second operation, and the rotation, the first movement, and the second movement are in the same area of ​​the cover seat (50).

3. The smart ring (100) according to claim 2, characterized in that: The flexible circuit board assembly (20) comprises a flexible substrate (21) and a reinforcing plate (23) arranged on the substrate (21); the substrate (21) is configured to allow bending and is arranged along the circumference of the first through hole (12); the reinforcing plate (23) does not allow bending; the reinforcing plates (23) are multiple and are arranged at intervals along the circumference of the first through hole (12); the processor (22) and / or the wireless transceiver (24) are located on the substrate (21) and supported by the reinforcing plate (23); the processor (22) and the wireless transceiver (24) are respectively located on both sides of the trigger assembly (40).

4. The smart ring (100) according to claim 3, characterized in that The accommodating cavity (101) is further provided with a first accommodating groove (102). The trigger assembly (40) further includes a support plate (27). The area of ​​the support plate (27) is larger than the area of ​​the reinforcing plate (23). The support plate (27) is not allowed to be bent. The support plate (27) is connected to the flexible substrate (21) and is located in the first accommodating groove (102). The electric sensor portion (42) and the button switch (46) are electrically connected to the flexible substrate (21) and supported by the support plate (27).

5. The smart ring (100) according to claim 4, characterized in that: The flexible circuit board assembly (20) is further provided with a charging interface (25) electrically connected to the processor (22); the support plate (27) is provided with a first hole (270); the charging interface (25) is electrically connected to the flexible substrate (21) via the first hole (270); and the charging interface (25) is located on a side of the support plate (27) away from the contact portion (41) and the electrical sensing portion (42).

6. The smart ring (100) according to claim 5, characterized in that: In a first direction, the charging interface (25) does not overlap with the button switch (46) or the electrical sensing portion (42), and the charging interface (25) includes a metal column (250), and the metal column (250) protrudes in a direction away from the support plate (27); On one side of the flexible substrate (21) of the button switch (46) and the electrical sensing portion (42), no electrical device is provided in the area corresponding to the metal column (250) in the first direction.

7. The smart ring (100) according to claim 6, characterized in that: The housing (10) further comprises an inner shell (14) and an outer shell (16), wherein the outer shell (16) is located on the outer periphery of the inner shell (14) and forms the accommodating cavity (101), the inner shell (14) is provided with the first accommodating groove (102), and the outer shell (16) is provided with a notch (161) corresponding to the first accommodating groove (102) in a first direction, the projected areas of the contact portion (41), the electric sensing portion (42) and the push button switch (46) in the first direction are all smaller than the outer contour area of ​​the notch (161), and the cover seat (50) is sealed and fixedly connected to the notch (161) and seals and isolates the flexible circuit board assembly (20) and the battery (30) from the external environment.

8. The smart ring (100) according to claim 7, characterized in that: The inner shell (14) includes a positioning column (142) and a third through hole (143); the support plate (27) is provided with a second hole (232); the positioning column (142) and the second hole (232) are connected; the charging interface (25) passes through the third through hole (143) and is exposed at least relative to the inner shell (14); a guide port (144) is further provided on the side of the third through hole (143); the guide port (144) is connected to the third through hole (143) and is used for filling a sealing material.

9. The smart ring (100) according to claim 1, characterized in that: The projection area of ​​the cover seat (50) in the first direction (A) is larger than the projection area of ​​the contact portion (41) in the first direction (A) and allows the contact portion (41) to be physically contacted, thereby completely sealing the flexible circuit board assembly (20), the battery (30) and the electric sensing portion (42) in the accommodating cavity (101).

10. The smart ring (100) according to claim 1, characterized in that: The contact portion (41) and the electrical sensing portion (42) are arranged along the circumference of the first through hole (12); the central angle (θ) corresponding to the arc of the contact portion (41) and the electrical sensing portion (42) ranges from 25° to 90°, respectively; and the button switch (46) includes one.

11. The smart ring (100) according to claim 4, characterized in that: The contact portion (41) further includes a sphere (410), a rotating portion (420) and a magnet (430); the electrical sensing portion (42) includes a magnetic sensor (45) electrically connected to the processor (22); the button switch (46) and the magnetic sensor (45) are connected to the flexible substrate (21) in the positive projection area of ​​the support plate (27); the sphere (410) is at least partially exposed relative to the cover seat (50); the sphere (410) is configured to receive a rotation operation of a finger and drive the rotating portion (420) in contact with the sphere (410) to rotate, and drive the magnet (430) to rotate and cause a change in magnetism; the magnetic sensor (45) generates a signal according to the change in magnetism of the magnet (430) and executes a first operation on the external device (200, 300).

12. The smart ring (100) according to claim 11, characterized in that: The trigger assembly (40) further comprises an upper shell (411) and a lower shell (440) connected to each other, the sphere (410) is at least partially exposed relative to the upper shell (411), the lower shell (440) is further provided with a fixing column (4401), and the support plate (27) is provided with a fixing hole (231); The magnet (430), the rotating part (420), and the magnetic sensor (45) each include a plurality of them, and the plurality of magnetic sensors (45) are connected to the flexible substrate (21) on the projection area of ​​the support plate (27) at intervals. The button switch (46) is located in the middle of the plurality of magnetic sensors (45), and the button switch (46) is located below the sphere (410). The lower shell (440) is penetrated by the fixing hole (231) through the fixing column (4401) to fix the lower shell (440) and the support plate (27).

13. The smart ring (100) according to claim 11, characterized in that: The smart ring (100) further includes a light source (450), the light source (450) being electrically connected to the flexible substrate (21) and located below the sphere (410), the sphere (410) comprising a light-transmitting material, and the light source (450) being configured to generate light passing through the sphere (410).

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