Smart glasses

Abstract

The application provides a kind of intelligent glasses, belongs to glasses technical field.Intelligent glasses main circuit board ground terminal and the ground terminal of antenna assembly are connected.The first flexible circuit board is connected with main circuit board and first function component.The ground terminal of first flexible circuit board is connected with the ground terminal of main circuit board.The second flexible circuit board is connected with main circuit board and second function component.The ground terminal of second flexible circuit board is connected with the ground terminal of main circuit board.The ground terminal of first flexible circuit board is connected with the ground terminal of main circuit board, and the ground terminal of second flexible circuit board is connected with the ground terminal of main circuit board.Based on the ground terminal of main circuit board and the ground terminal of antenna assembly are connected, the ground terminal of antenna assembly can be connected with the ground terminal of first flexible circuit board and the ground terminal of second flexible circuit board, the ground area of antenna assembly is increased, so as to improve the antenna efficiency of antenna assembly, solve the problem of low antenna efficiency of traditional glasses.

Description

Technical Field

[0001] This application belongs to the field of eyewear technology, and in particular relates to a smart pair of glasses. Background Technology

[0002] With the rapid development of artificial intelligence glasses, augmented reality glasses, virtual reality glasses, corrective glasses, and protective glasses, intelligence and lightweight design have become the main development trends in eyewear, and are gradually penetrating into many different fields. Eyewear should be lightweight and comfortable to wear to meet the needs of users for extended periods.

[0003] However, as users' demand for lightweight and miniaturized designs increases, the space for antenna design inside the glasses is gradually being compressed, leading to a decrease in antenna efficiency. Summary of the Invention

[0004] The purpose of this application is to provide a smart glasses solution that addresses the problem of low antenna efficiency in traditional glasses due to limitations in antenna design space.

[0005] This application provides a smart glasses, including:

[0006] Antenna assembly, used for transmitting wireless signals to external devices;

[0007] The main circuit board, wherein the ground terminal of the main circuit board is connected to the ground terminal of the antenna assembly;

[0008] A first flexible circuit board is connected to the main circuit board and the first functional component. The ground terminal of the first flexible circuit board is connected to the ground terminal of the main circuit board. The first functional component is disposed inside the first temple housing.

[0009] The second flexible circuit board is connected to the main circuit board and the second functional component. The ground terminal of the second flexible circuit board is connected to the ground terminal of the main circuit board. The second functional component is disposed inside the second temple housing.

[0010] In some embodiments, the smart glasses further include:

[0011] A shielding structure is disposed on the main circuit board, and the shielding structure is connected to the ground terminal of the main circuit board;

[0012] A first grounding buffer structure is disposed between the shielding structure and the first flexible circuit board, and the first grounding buffer structure is connected to the grounding terminal of the first flexible circuit board.

[0013] In some embodiments, the antenna assembly includes:

[0014] Antenna body;

[0015] The first antenna connector is connected to the feed terminal of the antenna body and the radio frequency module inside the shielding structure, and the radio frequency module is disposed on the main circuit board;

[0016] The second antenna connector is connected to the grounding terminal of the antenna body and the grounding terminal of the main circuit board.

[0017] In some embodiments, the smart glasses further include:

[0018] A connection layer is disposed on the main circuit board, and the connection layer is connected to the functional terminals of the second flexible circuit board and the functional terminals of the main circuit board.

[0019] A reinforcing layer is disposed on the surface of the connecting layer away from the main circuit board, and the reinforcing layer is connected to the ground terminal of the second flexible circuit board.

[0020] In some embodiments, the smart glasses further include:

[0021] A first grounding conductive layer is disposed on the side of the reinforcing layer away from the connecting layer, and the first grounding conductive layer is connected to the reinforcing layer;

[0022] A second grounding conductive layer is connected to the first grounding conductive layer. The second grounding conductive layer is disposed on the main circuit board and is connected to the ground terminal of the main circuit board.

[0023] In some embodiments, the smart glasses further include:

[0024] The second grounding buffer structure is disposed on the side of the first grounding conductive layer away from the reinforcing layer, and the second grounding buffer structure is disposed close to the housing of the smart glasses.

[0025] In some embodiments, the antenna assembly, the main circuit board, and the first flexible circuit board are disposed within the first temple housing, and the second flexible circuit board is disposed at one end of the first temple housing near the frame.

[0026] In some embodiments, the smart glasses further include:

[0027] A first rotating connection structure is disposed at one end of the first temple housing near the frame, and the first rotating connection structure is connected to the first temple housing and the frame.

[0028] The third grounding buffer structure is disposed between the first rotating connection structure and the grounding terminal of the main circuit board.

[0029] In some embodiments, the smart glasses further include:

[0030] A first elastic connection structure is disposed on the first temple shell of the first temple shell, and the first elastic connection structure is used to contact the user's head.

[0031] A second elastic connection structure is disposed on the first elastic connection structure, and the second elastic connection structure is connected to the ground terminal of the first flexible circuit board.

[0032] In some embodiments, the first functional component includes a speaker connected to the main circuit board via the first flexible circuit board, and the speaker is disposed close to the second resilient connection structure.

[0033] The beneficial effects of the embodiments of the present invention compared with the prior art are as follows:

[0034] The antenna assembly enables wireless signal transmission between the smart glasses and external devices. The main circuit board's wiring and interfaces connect the first and second functional components within the smart glasses, achieving physical integration of these components. The first and second flexible circuit boards are characterized by flexibility, thinness, and wiring flexibility. The first flexible circuit board facilitates the connection between the main circuit board and the first functional component, overcoming the limitations of the main circuit board in confined spaces and complex structures. Furthermore, the first flexible circuit board allows for greater flexibility in the placement of the main circuit board and the first functional component, saving space and providing more room for the antenna assembly.

[0035] The second flexible circuit board enables the connection between the main circuit board and the second functional component, overcoming the limitations of the main circuit board in confined spaces and complex structures. Furthermore, the second flexible circuit board allows for greater flexibility in the placement of the main circuit board and the second functional component, saving space and providing more room for the antenna assembly.

[0036] The grounding terminal of the first flexible circuit board is connected to the grounding terminal of the main circuit board, and the grounding terminal of the second flexible circuit board is also connected to the grounding terminal of the main circuit board. Based on the connection between the grounding terminal of the main circuit board and the grounding terminal of the antenna assembly, the grounding terminal of the antenna assembly can be connected to both the grounding terminals of the first and second flexible circuit boards, increasing the grounding area of ​​the antenna assembly. Furthermore, the smart glasses provided in this application can increase the grounding area of ​​the antenna assembly to optimize current distribution, reduce resistance loss caused by current concentration, and allow more energy to be used for signal radiation, thereby improving the antenna efficiency of the antenna assembly. Moreover, by increasing the grounding area of ​​the antenna assembly, the reference ground can be made more stable, reducing impedance fluctuations with the environment and reducing the impact of external noise on the antenna assembly, stabilizing the impedance matching of the antenna assembly, and thus improving the antenna efficiency. Therefore, the smart glasses provided in this application can solve the problem of low antenna efficiency caused by the limited antenna design space in traditional glasses. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This application provides schematic diagrams of the structure within the first temple housing of the smart glasses in some embodiments.

[0039] Figure 2 Rear view of the internal structure of the first temple housing in some embodiments provided in this application;

[0040] Figure 3 This application provides schematic diagrams of the overall structure of the smart glasses in some embodiments.

[0041] Figure 4 Side views of the antenna assembly, shielding structure, and first grounding buffer structure within the first temple housing in some embodiments provided in this application;

[0042] Figure 5 Side views of the first temple housing inner connecting layer, reinforcing layer, first grounding conductive layer, second grounding conductive layer, second grounding buffer structure, first rotating connection structure, third grounding buffer structure, and second flexible circuit board in some embodiments provided in this application;

[0043] Figure 6 Side views of the second elastic connection structure, the first elastic connection structure, and the first flexible circuit board inside the first temple housing in some embodiments provided in this application;

[0044] Figure 7 Rear view of the first elastic connection structure and the first temple housing in some embodiments provided in this application;

[0045] Figure 8 A cross-sectional electric field distribution diagram of the antenna assembly when the user's head is not in contact with the ground terminal of the first flexible circuit board in some embodiments provided in this application;

[0046] Figure 9 A cross-sectional electric field distribution diagram of the antenna assembly when the user's head is in contact with the ground terminal of the first flexible circuit board in some embodiments provided in this application;

[0047] Figure 10 Scattering parameter S in some embodiments provided in this application 11 Schematic diagram of the curve of frequency variation;

[0048] Figure 11 A schematic diagram of the antenna component efficiency versus frequency in some embodiments provided in this application. Detailed Implementation

[0049] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0050] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0051] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. Additionally, in the embodiments of this application, the terms "first" and "second" are used to distinguish identical or similar items that have substantially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or order of execution, and that "first" and "second" do not necessarily imply difference.

[0053] In the description of this application, unless otherwise stated, " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B can mean A or B. "And / or" in this application is merely a description of the relationship between the related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone, where A and B can be singular or plural. Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0054] Please see Figure 1 and Figure 2 This application provides a smart glasses 100. The smart glasses 100 includes an antenna assembly 10, a main circuit board 20, a first flexible circuit board 30, and a second flexible circuit board 40. The antenna assembly 10 is used for wireless signal transmission with external devices. The ground terminal of the main circuit board 20 is connected to the ground terminal of the antenna assembly 10. The first flexible circuit board 30 is connected to the main circuit board 20 and a first functional component. The first functional component is disposed within a first temple housing 510. The ground terminal of the first flexible circuit board 30 is connected to the ground terminal of the main circuit board 20. The second flexible circuit board 40 is connected to the main circuit board 20 and the second functional component. The second functional component is disposed within a second temple housing 520, such as... Figure 3 As shown. The ground terminal of the second flexible circuit board 40 is connected to the ground terminal of the main circuit board 20.

[0055] In this embodiment, the antenna assembly 10 enables wireless signal transmission between the smart glasses 100 and external devices. The circuit wiring and interfaces of the main circuit board 20 can connect the first functional component and the second functional component in the smart glasses 100 to achieve physical integration of the various components. The first flexible circuit board 30 and the second flexible circuit board 40 are characterized by flexibility, thinness, and wiring flexibility. Through the first flexible circuit board 30, the connection between the main circuit board 20 and the first functional component disposed in the first temple housing 510 can be realized, overcoming the limitations of the main circuit board 20 in a small space and complex structure. Furthermore, through the first flexible circuit board 30, the placement of the main circuit board 20 and the first functional component can be more flexible, saving space and providing more space for the placement of the antenna assembly 10.

[0056] The second flexible circuit board 40 enables the connection between the main circuit board 20 and the second functional component disposed within the second temple housing 520, overcoming the limitations of the main circuit board 20 in confined spaces and complex structures. Furthermore, the second flexible circuit board 40 allows for greater flexibility in the placement of the main circuit board 20 and the second functional component, saving space and providing more room for the placement of the antenna assembly 10.

[0057] The grounding terminal of the first flexible circuit board 30 is connected to the grounding terminal of the main circuit board 20, and the grounding terminal of the second flexible circuit board 40 is also connected to the grounding terminal of the main circuit board 20. Based on the connection between the grounding terminal of the main circuit board 20 and the grounding terminal of the antenna assembly 10, the grounding terminal of the antenna assembly 10 can be connected to both the grounding terminals of the first flexible circuit board 30 and the second flexible circuit board 40, increasing the grounding area of ​​the antenna assembly 10. Furthermore, the smart glasses 100 provided in this application can increase the grounding area of ​​the antenna assembly 10 to optimize current distribution, reduce resistance loss caused by current concentration, and allow more energy to be used for signal radiation, thereby improving the antenna efficiency of the antenna assembly 10. Furthermore, by increasing the grounding area of ​​the antenna assembly 10, the reference ground can be made more stable, reducing impedance fluctuations with the environment and reducing the impact of external noise on the antenna assembly 10, stabilizing the impedance matching of the antenna assembly 10, and thus improving the antenna efficiency of the antenna assembly 10. Therefore, the smart glasses 100 provided in this application can solve the problem of low antenna efficiency caused by the limited antenna design space in traditional glasses.

[0058] Please see Figure 3In some embodiments, the smart glasses 100 further includes a first temple housing 510 and a second temple housing 520. The antenna assembly 10, main circuit board 20, first flexible circuit board 30, and first functional components are disposed within the first temple housing 510. A second flexible circuit board 40 is disposed at one end of the first temple housing 510 near the frame 530. The second temple housing 520 and the first temple housing 510 are symmetrically disposed on both sides of the frame 530. Second functional components are disposed within the second temple housing 520.

[0059] In this embodiment, the antenna assembly 10, the main circuit board 20, the first flexible circuit board 30, and the first functional component are all disposed within the first temple housing 510. The first functional component includes a speaker 910 and a sound collector 920, etc. Figure 1 and Figure 2 The diagrams are shown from different angles. The second functional component is housed within the second temple housing 520. This second functional component includes a camera, a battery, and a flexible touch circuit board. The second flexible circuit board 40 is located at the end of the first temple housing 510 near the frame 530, allowing it to be positioned close to the second functional component to connect it to the main circuit board 20 located within the first temple housing 510. The antenna assembly 10, main circuit board 20, first flexible circuit board 30, first functional component, and second functional component provided in this application are distributed within the first temple housing 510 and the second temple housing 520, saving space and providing more space for the antenna assembly 10, thereby increasing its area and solving the problem of low antenna efficiency caused by the limited antenna design space in traditional eyeglasses.

[0060] In some embodiments, two symmetrical lenses 540 are disposed within the frame 530. A first temple housing 510 and a second temple housing 520 are respectively disposed on both sides of the two symmetrical lenses 540, forming the smart glasses 100. The lenses 540 can be waveguide lenses, vision-correcting lenses, protective lenses, etc.

[0061] Please see Figure 4 In some embodiments, the smart glasses 100 further includes a shielding structure 610 and a first grounding buffer structure 620. The shielding structure 610 is disposed on the main circuit board 20. The shielding structure 610 is connected to the grounding terminal of the main circuit board 20. The first grounding buffer structure 620 is disposed between the shielding structure 610 and the first flexible circuit board 30. The first grounding buffer structure 620 is connected to the grounding terminal of the first flexible circuit board 30.

[0062] In this embodiment, the first grounding buffer structure 620 is disposed between the shielding structure 610 and the first flexible circuit board 30, and the first grounding buffer structure 620 is connected to the grounding terminal of the first flexible circuit board 30, thereby enabling the connection between the grounding terminal of the first flexible circuit board 30 and the shielding structure 610. Furthermore, the shielding structure 610 is disposed on the main circuit board 20, and the shielding structure 610 is connected to the grounding terminal of the main circuit board 20, enabling surface contact between the grounding terminal of the main circuit board 20 and the grounding terminal of the first flexible circuit board 30, reducing the influence of the first flexible circuit board 30 on the resonant frequency of the antenna assembly 10. Furthermore, the connection between the grounding terminal of the main circuit board 20 and the grounding terminal of the antenna assembly 10 further increases the grounding area of ​​the antenna assembly 10, thereby improving the antenna efficiency of the antenna assembly 10.

[0063] In some embodiments, the side of the first flexible circuit board 30 closest to the sound collector 920 is exposed copper, and the grounding terminal of the first flexible circuit board 30 is connected to the shielding structure 610 through the first grounding buffer structure 620.

[0064] In some embodiments, the sound acquisition device 920 can be a microphone.

[0065] Please see Figure 4 In some embodiments, the antenna assembly 10 includes an antenna body 110, a first antenna connector 120, and a second antenna connector 130. The first antenna connector 120 is connected to the feed terminal of the antenna body 110 and the radio frequency module within the shielding structure 610. The radio frequency module is mounted on the main circuit board 20. The second antenna connector 130 is connected to the ground terminal of the antenna body 110 and the ground terminal of the main circuit board 20.

[0066] In this embodiment, the shielding structure 610 can shield the components on the main circuit board 20 that require shielding, isolating electromagnetic interference and ensuring stable circuit operation. The antenna body 110 is the core structure for electromagnetic wave radiation and reception, capable of converting electrical signals into electromagnetic waves, or vice versa. The antenna body 110 is connected to the radio frequency module on the main circuit board 20 and the ground terminal of the main circuit board 20 respectively through the first antenna connector 120 and the second antenna connector 130, achieving both mechanical and electrical connections and ensuring stable operation of the antenna assembly 10.

[0067] The first antenna connector 120 can be a feed spring. Through the first antenna connector 120, the feed terminal of the antenna body 110 and the RF module can be connected. Alternatively, the first antenna connector 120 can be understood as the feed terminal of the antenna body 110 connected to the RF module. The RF module is used to process RF signals during wireless communication. The RF module is housed within the shielding structure 610, which isolates the RF module from electromagnetic interference to ensure its stable operation.

[0068] The second antenna connector 130 can be a grounding spring. The grounding terminal of the antenna body 110 and the grounding terminal of the main circuit board 20 are connected via the second antenna connector 130. This can also be understood as the second antenna connector 130 serving as the grounding terminal of the antenna body 110, connected to the grounding terminal of the main circuit board 20. Furthermore, the grounding terminal of the antenna body 110 can be connected to the grounding terminals of the first flexible circuit board 30, the shielding structure 610, and the second flexible circuit board 40 via the grounding terminal of the main circuit board 20, further increasing the grounding area of ​​the antenna assembly 10 and improving its antenna efficiency.

[0069] In some embodiments, the shielding structure 610 is made of metal and is connected to the main circuit board 20. The radio frequency module disposed on the main circuit board 20 is located inside the shielding structure 610, reducing electromagnetic interference. The first antenna connector 120 is connected to the radio frequency module via transmission lines such as microstrip lines or striplines.

[0070] Please see Figure 5 In some embodiments, the smart glasses 100 further includes a connection layer 710 and a reinforcement layer 720. The connection layer 710 is disposed on the main circuit board 20. The connection layer 710 is connected to the functional terminals of the second flexible circuit board 40 and the main circuit board 20. The reinforcement layer 720 is disposed on the surface of the connection layer 710 away from the main circuit board 20. The reinforcement layer 720 is connected to the ground terminal of the second flexible circuit board 40.

[0071] In this embodiment, the functional terminals of the second flexible circuit board 40 are connected to the functional terminals (such as input signal terminals, output signal terminals, control signal terminals, and power supply terminals) of the main circuit board 20 through the connection layer 710, which can realize signal transmission between the functional terminals of the second flexible circuit board 40 and the functional terminals of the main circuit board 20, thereby realizing signal transmission between the main circuit board 20 and the second functional component.

[0072] The reinforcing layer 720 is disposed on the surface of the connecting layer 710 away from the main circuit board 20. The reinforcing layer 720 is connected to the ground terminal of the second flexible circuit board 40, which can lead out the ground terminal of the second flexible circuit board 40, release static electricity, avoid electrostatic discharge damage to sensitive components, ensure circuit safety, and reduce signal interference.

[0073] In some embodiments, the reinforcing layer 720 is made of a metallic material.

[0074] In some embodiments, the smart glasses 100 further includes a first ground conductive layer 730 and a second ground conductive layer 740. The first ground conductive layer 730 is disposed on the side of the reinforcing layer 720 away from the connecting layer 710. The first ground conductive layer 730 is connected to the reinforcing layer 720.

[0075] The second ground conductive layer 740 is connected to the first ground conductive layer 730. The second ground conductive layer 740 is disposed on the main circuit board 20. The second ground conductive layer 740 is connected to the ground terminal of the main circuit board 20.

[0076] In this embodiment, the first ground conductive layer 730 is connected to the reinforcing layer 720, and the second ground conductive layer 740 is connected to the first ground conductive layer 730, enabling the first ground conductive layer 730, the reinforcing layer 720, and the second ground conductive layer 740 to be connected. With the first ground conductive layer 730, the reinforcing layer 720, and the second ground conductive layer 740 all connected, the second ground conductive layer 740 is connected to the ground terminal of the main circuit board 20, enabling the ground terminal of the main circuit board 20 to be connected to the first ground conductive layer 730, the reinforcing layer 720, and the second ground conductive layer 740.

[0077] Furthermore, the grounding terminal of the second flexible circuit board 40 is connected to the reinforcing layer 720, enabling the grounding terminal of the second flexible circuit board 40 to connect with the reinforcing layer 720, the first ground conductive layer 730, the second ground conductive layer 740, and the grounding terminal of the main circuit board 20, thereby increasing the grounding area. Simultaneously, the reinforcing layer 720, the first ground conductive layer 730, and the second ground conductive layer 740 are all layered structures, increasing the surface contact between the various structures and further increasing the grounding area.

[0078] Therefore, since the grounding terminal of the antenna assembly 10 is connected to the grounding terminal of the second flexible circuit board 40, the grounding area of ​​the antenna assembly 10 can be further increased, which can optimize the current distribution, reduce the resistance loss caused by current concentration, reduce the impedance fluctuation with the environment, and reduce the influence of external noise on the antenna assembly 10, so as to improve the antenna efficiency of the antenna assembly 10.

[0079] In some embodiments, a portion of the main circuit board 20 is exposed copper to form a ground terminal of the main circuit board 20. The reinforcing layer 720 is fully connected to the ground terminal of the main circuit board 20 through the first ground conductive layer 730 and the second ground conductive layer 740, thereby achieving surface contact between the ground terminal of the second flexible circuit board 40 and the ground terminal of the main circuit board 20 to increase the grounding area of ​​the antenna assembly 10.

[0080] In some embodiments, a conductive double-sided adhesive layer 721 is provided between the first grounding conductive layer 730 and the reinforcing layer 720 to achieve connection between the first grounding conductive layer 730 and the reinforcing layer 720. The first grounding conductive layer 730 can be a grounding conductive cloth. The first grounding conductive layer 730, the reinforcing layer 720, and the conductive double-sided adhesive layer 721 all have conductive properties.

[0081] In some embodiments, the smart glasses 100 further includes a second grounding buffer structure 750. The second grounding buffer structure 750 is disposed on the side of the first grounding conductive layer 730 away from the reinforcing layer 720. The second grounding buffer structure 750 is disposed near the rear housing of the first temple housing 510.

[0082] In this embodiment, the second grounding buffer structure 750 is disposed between the rear shell of the first temple housing 510 and the first grounding conductive layer 730. A connecting layer 710, a reinforcing layer 720, a conductive double-sided adhesive layer 721, the first grounding conductive layer 730, and the second grounding buffer structure 750 are sequentially disposed on one side of the main circuit board 20, forming a stacked structure that increases the contact area between them. The second grounding buffer structure 750 serves functions such as grounding, buffering, sealing, filling, and supporting, providing a stable working environment for the various components within the first temple housing 510 and improving the impact resistance and reliability of the smart glasses 100. Furthermore, by pressing the second grounding buffer structure 750 against the rear shell of the first temple housing 510, a good connection between the connecting layer 710 and the main circuit board 20 can be ensured during assembly.

[0083] In some embodiments, the first grounding conductive layer 730 and the second grounding conductive layer 740 may be conductive materials with ductility and flexibility, such as conductive cloth or copper foil.

[0084] In some embodiments, the smart glasses 100 further includes a first rotating connection structure 810 and a third grounding buffer structure 820. The first rotating connection structure 810 is disposed at one end of the first temple housing 510 near the frame 530. The first rotating connection structure 810 is connected to the first temple housing 510 and the frame 530. The third grounding buffer structure 820 is disposed between the first rotating connection structure 810 and the grounding terminal of the main circuit board 20.

[0085] In this embodiment, the first rotating connection structure 810 enables a movable connection between the first temple housing 510 and the frame 530. Furthermore, the first temple housing 510 can unfold within a controllable angle range based on the frame 530, better conforming to the curvature of the user's head and facilitating wearing. The first temple housing 510 can also fold within a controllable angle range based on the frame 530, reducing the size of the smart glasses 100 and making them easier for the user to store.

[0086] The grounding of the main circuit board 20 is achieved by connecting the grounding terminal of the main circuit board 20 to the first rotating connection structure 810 through the third grounding buffer structure 820. Furthermore, since the grounding terminal of the antenna assembly 10 is connected to the grounding terminal of the main circuit board 20, the grounding area of ​​the antenna assembly 10 is further increased through the first rotating connection structure 810, the third grounding buffer structure 820, and the grounding terminal of the main circuit board 20, thereby improving the antenna efficiency of the antenna assembly 10.

[0087] In some embodiments, the portion of the main circuit board 20 near the third grounding buffer structure 820 is copper exposed to form a grounding terminal of the main circuit board 20, thereby achieving the connection between the grounding terminal of the main circuit board 20, the third grounding buffer structure 820, and the first rotating connection structure 810.

[0088] In some embodiments, the third grounding buffer structure 820 can be grounding foam, which can not only realize the mechanical connection between the first rotating connection structure 810 and the main circuit board 20, but also realize the electrical connection between the grounding terminal of the main circuit board 20 and the first rotating connection structure 810, so that the first rotating connection structure 810 is grounded, thereby eliminating static electricity hazards and suppressing electromagnetic interference.

[0089] The first rotating connection structure 810 can be a hinge, comprising a hinge core, a hinge cup, and a hinge arm, which are connected by a pivot, allowing the first temple housing 510 to rotate around the pivot to open or close. The first rotating connection structure 810 can be made of metal, such as copper, nickel alloy, or titanium alloy.

[0090] In some embodiments, the first temple housing 510 includes a first temple outer shell 511, a second temple outer shell 512, and a temple inner shell 513. The first temple outer shell 511 is located on the side closer to the user's head, and the second temple outer shell 512 is disposed opposite to the first temple outer shell 511 on the side farther from the user's head. The temple inner shell 513 is disposed within the space formed by the first temple outer shell 511 and the second temple outer shell 512. The antenna assembly 10, main circuit board 20, first flexible circuit board 30, shielding structure 610, speaker 910, and sound collector 920 are disposed on the temple inner shell 513, such as... Figure 1 As shown.

[0091] Please see Figure 6 In some embodiments, the smart glasses 100 further includes a first elastic connection structure 830 and a second elastic connection structure 840. The first elastic connection structure 830 is disposed on the first temple outer shell 511 of the first temple shell 510, and the first elastic connection structure 830 is used to contact the user's head, such as... Figure 7As shown. The second elastic connection structure 840 is disposed on the first elastic connection structure 830. The second elastic connection structure 840 is connected to the ground terminal of the first flexible circuit board 30.

[0092] In this embodiment, the first elastic connection structure 830 is disposed on the side of the first temple shell 511 of the first temple shell 510 near the user's head, and can contact the user's head. The second elastic connection structure 840 is disposed on the first elastic connection structure 830. The two generate pressure through elastic deformation to ensure a tight fit of the contact surfaces, thereby realizing an electrical connection.

[0093] The second elastic connection structure 840 is connected to the grounding terminal of the first flexible circuit board 30, and the second elastic connection structure 840 is disposed on the first elastic connection structure 830, enabling the grounding terminal of the first flexible circuit board 30 to be connected to the first elastic connection structure 830. The first elastic connection structure 830 is also used to contact the user's head, thereby enabling the user's head to be connected to the grounding terminal of the first flexible circuit board 30. Thus, through the first elastic connection structure 830 and the second elastic connection structure 840, the grounding terminal of the first flexible circuit board 30 can be made to contact the user's head, which can reduce the absorption of electromagnetic wave energy by the human body when the antenna assembly 10 is working, further improving the antenna efficiency of the antenna assembly 10.

[0094] In some embodiments, the first functional component includes a speaker 910, such as Figure 6 As shown. The speaker 910 is connected to the main circuit board 20 via the first flexible circuit board 30. The speaker 910 is positioned close to the second flexible connection structure 840.

[0095] In this embodiment, the connection between the speaker 910 and the main circuit board 20 is achieved through the first flexible circuit board 30, enabling the transmission of electrical signals. The speaker 910 can be a loudspeaker, which can convert the electrical signals in the smart glasses 100 into audible sound, thereby realizing the transmission, playback, and interaction of sound. The speaker 910 is positioned close to the second elastic connection structure 840, and can also be positioned close to the first elastic connection structure 830, and thus close to the user's head, allowing the user to receive the sound played by the speaker 910 in a timely manner.

[0096] Please see Figure 8 and Figure 9 , Figure 8 and Figure 9 This is a diagram showing the electric field distribution of antenna assembly 10 at a frequency of 2.4 GHz during operation. From... Figure 8 As can be seen, when the user's head is not in contact with the grounding terminal of the first flexible circuit board 30, the electric field strength entering the user's head is relatively strong, such as... Figure 8 As shown in the wavy pattern.

[0097] When the user's head comes into contact with the grounding terminal of the second elastic connection structure 840 and the first flexible circuit board 30 through the first elastic connection structure 830, the electric field strength entering the user's head is significantly weakened, such as... Figure 9 The wavy pattern disappears. Thus, through the first elastic connection structure 830 and the second elastic connection structure 840 in the smart glasses 100 provided in this application, the user's head comes into contact with the grounding end of the first flexible circuit board 30, which reduces the electromagnetic field energy absorbed by the human body, thereby improving the antenna efficiency of the antenna assembly 10.

[0098] Please see Figure 10 , Figure 10 Simulation S of antenna assembly 10 in the smart glasses 100 provided in this application 11 Curve showing the change in frequency. S 11 This is a scattering parameter, which can also be understood as the reflection coefficient of port 1, used to describe the efficiency of a single-port network. The solid line represents the distance S when the user's head contacts the grounding terminal of the first flexible circuit board 30 through the first elastic connection structure 830 and the second elastic connection structure 840. 11 Curve showing frequency variation. The dashed line represents the state when the user's head is not in contact with the grounding terminal of the first flexible circuit board 30. 11 Curve showing variation with frequency.

[0099] When the user's head comes into contact with the grounding terminal of the first flexible circuit board 30, S 11 The operating frequency band with a ≤-6dB bias is 2.34GHz to 2.5GHz and 5.06GHz to 6GHz. The Wi-Fi 6 protocol requires operating frequency bands of 2.4GHz (802.11b / g, band range 2.400GHz to 2.4835GHz) and 5GHz (802.11a, band range 5.150GHz to 5.825GHz). Therefore, it can be concluded that the operating frequency band of the antenna assembly 10 in the smart glasses 100 provided in this application can cover mobile communication frequency bands such as Wi-Fi 6.

[0100] Furthermore, according to Figure 10 Simulation S when the user's head is not in contact with the grounding terminal of the first flexible circuit board 30 11 The frequency variation curve shows that whether the user's head is in contact with the grounding terminal of the first flexible circuit board 30 has little impact on the antenna return loss.

[0101] Please see Figure 11 , Figure 11 The simulated efficiency curve of the antenna assembly 10 in the smart glasses 100 provided in this application as a function of frequency is shown. Figure 11As can be seen, when the user's head is in contact with the grounding terminal of the first flexible circuit board 30, the antenna efficiency of the antenna assembly 10 is -2.44dB to -3.11dB in the 2.4GHz to 2.48GHz frequency band. In the 5.15GHz to 5.825GHz frequency band, the antenna efficiency of the antenna assembly 10 is -2.03dB to -2.63dB.

[0102] When the user's head is not in contact with the ground terminal of the first flexible circuit board 30, the antenna efficiency of antenna assembly 10 is -3.3dB to -3.83dB in the 2.4GHz to 2.48GHz frequency band. In the 5.15GHz to 5.825GHz frequency band, the antenna efficiency is -2.2dB to -2.5dB. Therefore, in the 2.4GHz frequency band, contact between the user's head and the ground terminal of the first flexible circuit board 30 can improve the efficiency of antenna assembly 10 by approximately 1dB. In the 5GHz frequency band, contact between the user's head and the ground terminal of the first flexible circuit board 30 can improve the efficiency of antenna assembly 10 by approximately 0.4dB.

[0103] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0104] In the above embodiments, the descriptions of each embodiment have different focuses. Parts not described in detail in a particular embodiment can be found in the relevant descriptions of other embodiments. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application.

[0105] The division into modules or units is merely a logical functional division; in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0106] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0107] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A smart glass, characterized by, The application relates to an intelligent glasses, which comprises: an antenna assembly (10) for transmitting wireless signals with external devices; a main circuit board (20), a ground end of the main circuit board (20) being connected with a ground end of the antenna assembly (10); a first flexible circuit board (30) connected with the main circuit board (20) and a first functional assembly, a ground end of the first flexible circuit board (30) being connected with the ground end of the main circuit board (20), the first functional assembly being arranged in a first temple shell (510); a second flexible circuit board (40) connected with the main circuit board (20) and a second functional assembly, a ground end of the second flexible circuit board (40) being connected with the ground end of the main circuit board (20), the second functional assembly being arranged in a second temple shell (520); a connecting layer (710) arranged on the main circuit board (20), the connecting layer (710) being connected with a functional end of the second flexible circuit board (40) and a functional end of the main circuit board (20); a reinforcing layer (720) arranged on a surface of the connecting layer (710) away from the main circuit board (20), the reinforcing layer (720) being connected with the ground end of the second flexible circuit board (40); a first ground conductive layer (730) arranged on a side of the reinforcing layer (720) away from the connecting layer (710), the first ground conductive layer (730) being connected with the reinforcing layer (720); a second ground buffer structure (750) arranged on a side of the first ground conductive layer (730) away from the reinforcing layer (720) and between a rear shell of the first temple shell (510) and the first ground conductive layer (730).

2. The smart glasses of claim 1, wherein, The intelligent glasses further comprise: a shielding structure (610) arranged on the main circuit board (20), the shielding structure (610) being connected with the ground end of the main circuit board (20); a first ground buffer structure (620) arranged between the shielding structure (610) and the first flexible circuit board (30), the first ground buffer structure (620) being connected with the ground end of the first flexible circuit board (30).

3. The smart glasses of claim 2, wherein, The antenna assembly (10) comprises: an antenna main body (110); a first antenna connecting piece (120) connected with a feeding end of the antenna main body (110) and a radio frequency module in the shielding structure (610), the radio frequency module being arranged on the main circuit board (20); a second antenna connecting piece (130) connected with a ground end of the antenna main body (110) and a ground end of the main circuit board (20).

4. The smart glasses of claim 3, wherein, The intelligent glasses further comprise: a second ground conductive layer (740) connected with the first ground conductive layer (730), the second ground conductive layer (740) being arranged on the main circuit board (20), the second ground conductive layer (740) being connected with the ground end of the main circuit board (20).

5. The smart glasses of claim 1, wherein, The antenna assembly (10), the main circuit board (20) and the first flexible circuit board (30) are arranged in the first temple shell (510), and the second flexible circuit board (40) is arranged at one end of the first temple shell (510) close to the frame (530).

6. The smart glasses of claim 5, wherein, The smart glasses further comprise: A first rotating connection structure (810) is arranged at one end of the first temple shell (510) close to the frame (530), and the first rotating connection structure (810) is connected with the first temple shell (510) and the frame (530); A third grounding buffer structure (820) is arranged between the first rotating connection structure (810) and a grounding end of the main circuit board (20).

7. The smart glasses of claim 5, wherein, The smart glasses further comprise: A first elastic connection structure (830) is arranged in a first temple shell (511) of the first temple shell (510), and the first elastic connection structure (830) is used for contacting the head of a user; A second elastic connection structure (840) is arranged on the first elastic connection structure (830), and the second elastic connection structure (840) is connected with a grounding end of the first flexible circuit board (30).

8. The smart glasses of claim 7, wherein, The first functional assembly comprises a loudspeaker (910), the loudspeaker (910) is connected with the main circuit board (20) through the first flexible circuit board (30), and the loudspeaker (910) is arranged close to the second elastic connection structure (840).

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