A central controller of intelligent glasses

Abstract

The application discloses a central controller of intelligent glasses, which comprises a shell, an installation cavity formed in the shell, a light outlet hole arranged on the side wall of the shell and communicating with the installation cavity and an external environment, a circuit board installed in the installation cavity, an indicating light source arranged on the circuit board and having an outlet direction intersecting with the hole axis direction of the light outlet hole at an included angle, and a light guide member comprising a first light guide part, a transfer light guide part and a second light guide part connected in sequence, wherein the first light guide part is aligned with the indicating light source at one end away from the transfer light guide part, the second light guide part is aligned with the light outlet hole at one end away from the transfer light guide part, and the transfer light guide part is provided with a light reflection inclined surface which can reflect incident light guided by the first light guide part to the second light guide part so that the second light guide part guides the light to the light outlet hole to project out. The light emitted by the indicating light source which cannot be directly aligned with the light outlet hole is guided to the light outlet hole to project out, thereby effectively solving the problem that the light of the signal lamp is dark and difficult to be viewed by a user in the prior art.

Description

Technical Field

[0001] This application relates to the technical field of smart electronic products, and more particularly to a central control unit for smart glasses. Background Technology

[0002] Currently, most smart glasses use indicator lights to communicate device information to users. For example, by using different numbers, colors, and flashing frequencies of indicator lights, users can roughly understand the remaining battery level of the control unit and whether it is in normal working order.

[0003] However, existing central control unit designs often struggle to accurately align the internal indicator lights with the outer casing, resulting in dimly lit indicator lights that are difficult for users to see. This can hinder accurate judgment of the central control unit's status and timely operation, causing significant inconvenience to the user experience. Therefore, improving the indicator light display design of central control units to enhance visibility has become a pressing technical challenge in the field of smart glasses systems. Summary of the Invention

[0004] The purpose of this invention is to provide a central control unit for smart glasses that can solve the aforementioned problems existing in the prior art.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] A central control unit for smart glasses is provided, comprising:

[0007] The outer shell has an internal mounting cavity, and the side wall is provided with a light-emitting hole that connects the mounting cavity and the external environment;

[0008] A circuit board is installed in the mounting cavity; the circuit board is provided with an indicator light source, and the light emission direction of the indicator light source forms an angle with the axis direction of the light emission hole;

[0009] A light guide includes a first light guide section, a relay light guide section, and a second light guide section connected in sequence. The end of the first light guide section away from the relay light guide section is aligned with the indicator light source, and the end of the second light guide section away from the relay light guide section is aligned with the light outlet. The relay light guide section is provided with a reflective slope, which can reflect the incident light guided by the first light guide section to the second light guide section, so that the second light guide section guides the light to the light outlet and projects it out.

[0010] In this application, by setting a light guide, the light emitted by the indicator light source, which was originally unable to be directly aligned with the light outlet, is guided to the light outlet for projection. This effectively solves the problem of dim indicator lights and difficulty for users to see them in existing technologies without significantly altering the internal installation structure of the central control unit, thus improving the user's ability to judge the status of the central control unit. Based on this, users can more clearly and accurately observe the status information of the central control unit, such as battery level and operating status, enabling them to take timely actions and improving the convenience and satisfaction of using the smart glasses system. Furthermore, the light guide adopts a structure with a first light guide section, a relay light guide section, and a second light guide section connected in sequence. This allows for effective light deflection and transmission within the limited internal space of the casing, without occupying excessive space, which is beneficial for the miniaturization design of the central control unit.

[0011] Optionally, the surface of the reflective slope is provided with a reflective layer.

[0012] In this design, on the one hand, the reflective layer significantly increases the reflectivity of the reflective slope, reducing light loss during reflection. For example, without the reflective layer, the reflective slope only reflects 70% to 80% of the incident light, while with the reflective layer, the reflectivity increases to over 90%, allowing more light to be guided to the light outlet and enhancing visibility. On the other hand, the reflective layer makes the reflected light distribution more uniform, avoiding uneven brightness at the light outlet due to uneven reflection. This results in clearer and more stable status information of the indicator light source observed by the user, improving the accuracy of information transmission.

[0013] Optionally, the shape of the second light guide is adapted to the shape of the light outlet hole, and the end of the second light guide away from the intermediate light guide is inserted into the light outlet hole for insertion and fixation.

[0014] The insertion and fixing method between the light guide and the light outlet hole of the housing is simple and reliable, ensuring that the connection between the second light guide and the light outlet hole remains stable during long-term use. This reduces the risk of separation or misalignment of the second light guide and the light outlet hole due to factors such as shaking or vibration of the central control unit, thus ensuring the continuity and stability of light transmission. The second light guide inserted into the light outlet hole can also fill the light outlet hole, preventing dust accumulation and optimizing the product appearance. On the other hand, this insertion and fixing design makes the installation and removal of the second light guide relatively easy. During production, the second light guide can be quickly and accurately inserted into the light outlet hole; during later maintenance or component replacement, the second light guide can also be easily removed, improving production efficiency and maintenance convenience.

[0015] Optionally, the light guide is further connected to a fixing part, which is connected and fixed to the circuit board or the housing.

[0016] By fixing the light guide to other components of the central control unit, the reliability of the light guide installation is enhanced. This effectively prevents the light guide from moving or shaking inside the central control unit, avoiding problems such as the light guide deviating from the correct position and affecting light transmission and status display.

[0017] Optionally, the fixing part is fixed to the circuit board or the housing by screws, adhesive, or snap-fit.

[0018] Screw fixing offers advantages such as strong connection, good disassembly, and strong adaptability; adhesive fixing offers advantages such as uniform connection, good sealing, and simple process; and snap-fit ​​fixing offers advantages such as quick installation, reliable connection, and reusability. In practical applications, the appropriate fixing method can be selected based on factors such as the design requirements of the central control unit, the operating environment, and cost.

[0019] Optionally, the indicator light source includes multiple power indicator light sources; the light emission hole includes multiple power indicator light emission holes, and the power indicator light emission holes are arranged in a one-to-one correspondence with the power indicator light sources; the light guide includes a power indicator light guide, and a power indicator light guide is arranged between each power indicator light source and the corresponding power indicator light emission hole.

[0020] By illuminating different numbers of power indicator lights to display the battery level, users can quickly and easily understand the remaining battery level of their smart glasses at a glance, without needing complicated operations or looking at other information, thus improving convenience and user experience. Multiple power indicator lights provide a more precise battery display, allowing users to more accurately perceive changes in battery level and make timely charging decisions, avoiding disruptions to normal use due to insufficient power.

[0021] Optionally, multiple power indicator light guides may be connected to the same mounting plate.

[0022] During production, multiple power indicator light guides are first connected to a mounting plate to form an assembly module. This module is then installed onto the circuit board or housing of the central control unit. The mounting plate provides a unified platform for the installation of the power indicator light guides, eliminating the need for installers to individually position and fix each light guide. Compared to installing each light guide one by one, this method reduces the complexity of the installation process, minimizes installation errors caused by human factors, significantly shortens installation time, and improves production efficiency. After multiple power indicator light guides are connected to the mounting plate, their relative positions are fixed, forming a more stable overall structure. This structure better resists external impacts and vibrations, improving the reliability and lifespan of the power indicator module.

[0023] Optionally, the fixing plate is provided with a fixing part, which is connected and fixed to the circuit board or the housing.

[0024] The fixing part acts as a connecting bridge, tightly connecting the fixing plate to the circuit board or housing. This essentially creates a stable "support frame" for multiple power indicator light guides, allowing each light guide to receive stable support through the connection between the fixing plate and the circuit board or housing. This prevents loosening, displacement, or even damage due to excessive localized stress, significantly improving the overall stability of the power indicator module and reducing relative displacement. Furthermore, by using a fixing part on a single fixing plate, multiple power indicator light guides can be fixed simultaneously with just this one part, greatly reducing the number of connecting components and lowering part costs. In addition, during installation, multiple power indicator light guides can be fixed simultaneously with a single connection operation between the fixing plate and the circuit board or housing via the fixing part. Compared to installing and fixing each light guide individually, this installation method significantly saves installation time and labor costs.

[0025] Optionally, the fixing part is provided with a fixing hole, and the circuit board is provided with a corresponding threaded hole. The screw passes through the fixing hole and is threaded into the threaded hole to realize the connection and fixation between the fixing part and the circuit board.

[0026] The screw-and-threaded connection provides strong bonding force, ensuring a tight fit between the mounting plate and the circuit board, preventing loosening. When maintenance or replacement of the power indicator module is required, simply unscrew the screws with a screwdriver to remove the light guide entirely from the circuit board. This detachable design facilitates the inspection, repair, and replacement of components such as the power indicator light guide, reducing maintenance costs and time. Fixing the light guide directly to the circuit board, rather than the housing, allows for more precise alignment between the first light guide section on the light guide and the indicator light source, reducing light leakage caused by poor alignment or incomplete fit.

[0027] Optionally, the end face of the first light guide portion away from the intermediate light guide portion is the incident surface, and the end face of the second light guide portion away from the intermediate light guide portion is the exit surface; the outer surface of the light guide is coated with a light-shielding layer, and the light-shielding layer avoids covering the incident surface and the exit surface.

[0028] The outer surface of the light guide is coated with a light-shielding layer, but it avoids covering the incident and exit surfaces. The function of the light-shielding layer is to prevent light from leaking out from unexpected parts of the light guide, ensuring that light can only enter from the incident surface, be transmitted through the inside of the light guide, and then exit from the exit surface. This improves the utilization rate of light and makes the indicator light display clearer and brighter. Attached Figure Description

[0029] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0030] Figure 1 This is a schematic diagram of the central control unit of the smart glasses described in the embodiments of this application;

[0031] Figure 2 This is one of the exploded schematic diagrams of the central control unit of the smart glasses described in the embodiments of this application;

[0032] Figure 3 This is the second exploded view of the central control unit of the smart glasses described in the embodiments of this application;

[0033] Figure 4 This is the third exploded view of the central control unit of the smart glasses described in the embodiments of this application;

[0034] Figure 5 This is a schematic diagram of the structure of the light guide component described in an embodiment of this application from one viewpoint;

[0035] Figure 6 This is a structural schematic diagram of the light guide component described in an embodiment of this application from another perspective.

[0036] In the picture:

[0037] 1. Outer shell; 11. Shell base; 12. Shell top cover; 13. Light emission hole; 2. Circuit board; 21. Indicator light source; 3. Light guide; 31. First light guide part; 311. Incident surface; 32. Second light guide part; 321. Exit surface; 33. Transfer light guide part; 331. Reflective slope; 34. Fixing plate; 341. Fixing part; 3411. Fixing hole; 4. Screw. Detailed Implementation

[0038] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In today's era of rapid technological advancement, smart wearable devices, especially smart glasses, are gradually integrating into people's daily lives, bringing them more convenient and richer visual experiences and information interaction methods. Currently, most smart glasses systems on the market adopt a specific architecture, where smart glasses need to be used in conjunction with a central control unit or smart terminal. In this architecture, the central control unit undertakes the important task of video signal output, transmitting the processed video signals to the smart glasses. The smart glasses are then responsible for converting these signals into visual images for display, allowing users to intuitively obtain information.

[0042] From a cost control perspective, many existing central control units have made trade-offs in their design, often omitting the relatively expensive display screen to reduce overall costs. As a result, crucial information such as the central control unit's battery status and operational status cannot be displayed intuitively on the screen. To address this issue, the industry commonly uses indicator lights to convey this information to users. For example, by using different numbers, colors, and flashing frequencies of indicator lights, users can roughly understand the remaining battery power and whether the central control unit is in normal working order.

[0043] However, the existing signal light-based status display method has a significant drawback in practical use: the signal lights are dim, making them difficult for users to see. A deeper investigation into the root cause reveals that this is primarily related to the internal structural design of the central control unit. Specifically, to fully utilize the limited space within the central control unit's casing and improve space utilization, the internal circuit boards are typically designed to be laid flat, and the signal lights are usually directly mounted on the circuit board as a component. The light-emitting apertures on the central control unit casing, intended for the signal light to pass through, are generally located on the side wall of the casing. This layout prevents the light from directly illuminating the signal lights. Due to scattering and reflection during light propagation, the intensity of the light ultimately transmitted through the aperture is significantly reduced. Consequently, in some cases, users may find it difficult to clearly observe the information conveyed by the signal lights, affecting their accurate judgment of the central control unit's status and timely operation, resulting in significant inconvenience to the user experience. Therefore, how to improve the signal light display design of the central control unit to enhance the visibility of the signal lights has become a pressing technical problem to be solved in the current field of smart glasses systems.

[0044] To overcome the above technical problems, such as Figures 1-6 As shown, this application embodiment provides a central control unit for smart glasses, including a housing 1, a circuit board 2, and a light guide 3, wherein:

[0045] The housing 1 has an internal mounting cavity, and the side wall is provided with a light-emitting hole 13 that connects the mounting cavity and the external environment;

[0046] The circuit board 2 is installed in the mounting cavity; the circuit board 2 is provided with an indicator light source 21, and the light emission direction of the indicator light source 21 forms an angle with the hole axis direction of the light emission hole 13;

[0047] The light guide 3 includes a first light guide 31, a relay light guide 33, and a second light guide 32 connected in sequence. The end of the first light guide 31 away from the relay light guide 33 is aligned with the indicator light source 21, and the end of the second light guide 32 away from the relay light guide 33 is aligned with the light outlet 13. The relay light guide 33 is provided with a reflective slope 331, which can reflect the incident light guided by the first light guide 31 to the second light guide 32, so that the second light guide 32 guides the light to the light outlet 13 for projection.

[0048] In the specific structure, the housing 1 forms an installation cavity inside, providing installation space for the internal components of the central control unit. Simultaneously, a light-emitting hole 13 is provided on the side wall, connecting the installation cavity to the external environment and serving as a channel for light to pass through, allowing external users to observe the status information of the internal indicator light source 21. The dimensions of the installation cavity in the housing 1 need to be rationally designed based on the dimensions of the internally installed components (such as the circuit board 2, battery, light guide 3, and other necessary devices) to ensure stable installation of all internal components and sufficient space for arrangement. The size and shape of the light-emitting hole 13 can be determined according to actual needs, but it must ensure that light can pass through smoothly without being excessively blocked. Preferably, the light-emitting hole 13 should be positioned as close as possible to the corresponding indicator light source 21 to facilitate the directing of light, which helps to reduce the size of the light guide 3. In another preferred embodiment, the outer casing 1 is configured to include a casing base 11 and a casing top cover 12, with a mounting cavity formed in the casing base 11 and a mounting opening formed on the top side of the casing base 11; during installation, the circuit board 2 can be horizontally placed into the casing base 11 through the mounting opening, and then the casing top cover 12 is closed and fixed.

[0049] Circuit board 2, installed in the mounting cavity of housing 1, is the core electronic component carrier of the central control unit and is equipped with indicator light sources 21. The number of indicator light sources 21 can be set appropriately according to requirements to emit light representing different states of the central control unit (such as battery level, operating status, etc.). However, the light emission direction of the indicator light source 21 forms an angle with the axis direction of the light emission hole 13, mainly determined by the installation state of circuit board 2 in the housing and the position of the light emission hole 13 on the housing. For details, please refer to [reference needed]. Figure 3 The state shown means that the light emitted directly from the indicator light source 21 cannot be emitted directly through the light outlet 13.

[0050] The light guide 3 includes a first light guide section 31, a relay light guide section 33, and a second light guide section 32 connected in sequence. The end of the first light guide section 31 furthest from the relay light guide section 33 is aligned with the indicator light source 21 to receive the light emitted by the indicator light source 21. The end of the second light guide section 32 furthest from the relay light guide section 33 is aligned with the light outlet hole 13, responsible for guiding the light to the light outlet hole 13 for projection. The relay light guide section 33 has a reflective inclined surface 331, which plays a crucial role in light deflection, reflecting the incident light guided by the first light guide section 31 to the second light guide section 32. The dimensions and shapes of the first light guide section 31, the relay light guide section 33, and the second light guide section 32 need to be specifically designed according to the internal space of the housing 1 and the light transmission requirements. For example, the first light guide section 31 must be able to fit tightly against the indicator light source 21 to ensure maximum light reception; the second light guide section 32 must be able to accurately align with the light outlet hole 13 so that the light can be emitted smoothly. The angle of the reflective slope 331 of the intermediate light guide 33 is a key design parameter. It needs to be precisely calculated and adjusted according to the light emission direction of the indicator light source 21 and the aperture axis direction of the light emission hole 13 to ensure that the light can be accurately reflected to the second light guide 32 and achieve effective light deflection. For example, normally, the light emission direction of the indicator light source 21 is perpendicular to the aperture axis direction of the light emission hole 13. Therefore, the angle between the reflective slope 331 and the aperture axis direction of the indicator light source 21 and the light emission hole 13 is designed to be 45°. This satisfies the requirement that after reflection by the reflective slope 331, the light can be accurately emitted along the aperture axis direction parallel to the light emission hole 13. The light guide 3 is used to guide the propagation of light. It is a transparent body and can be made of materials such as acrylic, polycarbonate, glass, and silicone resin, but is not limited to these.

[0051] In the specific use of the central control unit in this embodiment, when the indicator light source 21 on the circuit board 2 emits light, although the light emission direction of the indicator light source 21 is at an angle to the axis direction of the light emission hole 13, the light cannot be directly emitted through the light emission hole 13. However, due to the structure of the light guide 3, the first light guide part 31 is aligned with the indicator light source 21, receives the light emitted by it, and guides the light into the intermediate light guide part 33. The reflective inclined surface 331 of the intermediate light guide part 33 reflects the incident light guided by the first light guide part 31 to the second light guide part 32 according to the principle of optical reflection. The second light guide part 32 then guides the light to the light emission hole 13 for projection, so that the external user can observe the status information of the indicator light source 21 through the light emission hole 13.

[0052] In summary, the central control unit of the smart glasses provided in this embodiment can achieve at least the following beneficial effects: By setting the light guide 3, the light emitted by the indicator light source 21, which was originally unable to be directly aligned with the light outlet 13, is guided to the light outlet 13 for projection. This effectively solves the problem of dim indicator lights and difficulty for users to see them in the prior art without significantly altering the internal installation structure of the central control unit, thus improving the user's ability to judge the status of the central control unit. Based on this, users can more clearly and accurately observe the status information of the central control unit, such as battery level and working status, and thus take timely corresponding actions, improving the convenience and satisfaction of users using the smart glasses system. Furthermore, the light guide 3 adopts a structure of sequentially connected first light guide 31, intermediate light guide 33, and second light guide 32, which can achieve effective light deflection and transmission within the limited internal space of the outer casing 1, without occupying excessive space, which is beneficial for the miniaturization design of the central control unit.

[0053] In one embodiment, the surface of the reflective slope 331 is provided with a reflective layer.

[0054] In this embodiment, the reflective layer is attached as an additional structure to the outer surface of the reflective slope 331. It does not change the overall connection relationship and basic shape of the light guide 3, but only enhances the optical performance of the reflective slope 331. The reflective layer has high reflectivity. According to the principle of optical reflection, light will be reflected and change direction on the surface of the reflective layer, so that light that could not directly enter the second light guide 32 can be accurately reflected to the second light guide 32.

[0055] Based on this embodiment, on the one hand, the reflective layer significantly increases the light reflection capability of the reflective slope 331, reducing light loss during reflection. For example, without the reflective layer, the reflective slope 331 can only reflect 70% to 80% of the incident light, while with the reflective layer, the reflectivity can be increased to over 90%, allowing more light to be guided to the light outlet 13, thus enhancing light visibility. On the other hand, the reflective layer makes the reflected light distribution more uniform, avoiding the problem of uneven light brightness at the light outlet 13 due to uneven reflection. This makes the status information of the indicator light source 21 observed by the user clearer and more stable, improving the accuracy of information transmission.

[0056] The reflective layer can be selected from, but is not limited to, a silver thin layer, an aluminum thin layer, a silicon dioxide thin film, a titanium dioxide thin film, etc.

[0057] In one embodiment, the shape of the second light guide 32 is adapted to the shape of the light outlet hole 13, and the end of the second light guide 32 away from the intermediate light guide 33 is inserted into the light outlet hole 13 for insertion and fixation.

[0058] Specifically, if the light-emitting aperture 13 is circular, then the end of the second light guide 32 furthest from the intermediate light guide 33 is also designed to be circular, with a diameter equal to or slightly smaller than that of the light-emitting aperture 13 (for easy insertion). This ensures a perfect fit between the two, resulting in a tight seal after insertion and reducing light leakage. When the light-emitting aperture 13 is square, the corresponding end of the second light guide 32 is also designed to be square, with a side length matching that of the light-emitting aperture 13, ensuring a secure connection after insertion and guaranteeing accurate light transmission.

[0059] The insertion and fixing method between the light guide 3 and the light outlet hole 13 of the housing is simple and reliable, ensuring that the connection between the second light guide 32 and the light outlet hole 13 remains stable during long-term use. This reduces the risk of separation or misalignment of the second light guide 32 and the light outlet hole 13 due to factors such as shaking or vibration of the central control unit, thus ensuring the continuity and stability of light transmission. The second light guide 32 inserted into the light outlet hole 13 can also fill the light outlet hole 13, preventing dust accumulation and optimizing the product appearance. On the other hand, this insertion and fixing design makes the installation and removal of the second light guide 32 relatively easy. During production, the second light guide 32 can be quickly and accurately inserted into the light outlet hole 13; during later maintenance or component replacement, the second light guide 32 can also be easily removed, improving production efficiency and maintenance convenience.

[0060] In one embodiment, the light guide 3 is further connected to a fixing part 341, which is connected and fixed to the circuit board 2 or the housing 1.

[0061] In addition to the insertion and engagement of the second light guide 32 with the light emission hole 13, this embodiment also includes a fixing part 341. The fixing part 341 serves as a bridge connecting the light guide 3 with other components (circuit board 2 or housing 1), and its presence allows the light guide 3 to be stably fixed inside the central control unit. During installation, the second light guide 32 is first aligned and inserted into the light emission hole 13, and then the fixing part 341 is connected and locked to the circuit board 2 or housing 1.

[0062] In this embodiment, the fixing part 341 connects and fixes the light guide 3 to other components of the central control unit, which enhances the reliability of the installation of the light guide 3 and can effectively prevent the light guide 3 from moving or shaking inside the central control unit, thus avoiding the problem of the light guide 3 deviating from the correct position and affecting the light transmission and status display.

[0063] The fixing part 341 may be integrally formed with the main body of the light guide 3. For example, the light guide 3 and the fixing part 341 may be manufactured simultaneously through injection molding to ensure the connection strength and stability between the two. Alternatively, after the light guide 3 is manufactured, the fixing part 341 may be connected to the light guide 3 by welding, adhesive bonding, or other methods. The specific method depends on the material properties and design requirements.

[0064] In one embodiment, the fixing part 341 is fixed to the circuit board 2 or the housing 1 by means of screws 4, adhesive or snap-fit.

[0065] In this embodiment, the use of screws 4 for fixing provides a large connection force, ensuring that the light guide 3 will not loosen or shift due to vibration or external force inside the central control unit, thus guaranteeing the stability and accuracy of light transmission. Moreover, when maintenance or replacement of the light guide 3 is required, simply unscrewing the screws 4 with a screwdriver allows the fixing part 341 to be easily removed from the circuit board 2 or the housing 1, making the operation convenient and preventing damage to other components.

[0066] When using adhesive bonding, a uniform connection can be achieved between the fixing part 341 and the circuit board 2 or the housing 1, avoiding loosening caused by localized loose connections and improving overall connection stability. Compared with screw bonding, adhesive bonding does not require machining screw holes on the fixing part 341 and the circuit board 2 or the housing 1, making the process simpler and the cost lower.

[0067] The snap-fit ​​fixing method requires no additional tools; simply align the fixing part 341 with the slot and press gently to complete the installation, greatly improving installation efficiency. The tight fit between the snap and the slot provides sufficient connection force, ensuring that the light guide 3 will not easily fall off inside the central control unit. Simultaneously, the elastic design of the snap also cushions vibrations to a certain extent, reducing the impact on the light guide 3. If it is necessary to disassemble the light guide 3, simply pull the fixing part 341 out of the slot, demonstrating good reusability.

[0068] In summary, screw fixing offers advantages such as strong connection, good disassembly, and high adaptability; adhesive fixing offers advantages such as uniform connection, good sealing, and simple process; and snap-fit ​​fixing offers advantages such as quick installation, reliable connection, and reusability. In practical applications, the appropriate fixing method can be selected based on factors such as the design requirements of the central control unit, the operating environment, and cost.

[0069] In one embodiment, combined with Figures 3-4 The indicator light source 21 includes multiple power indicator light sources; the light emission hole 13 includes multiple power indicator light emission holes, and the power indicator light emission holes are arranged in a one-to-one correspondence with the power indicator light sources; the light guide 3 includes a power indicator light guide, and a power indicator light guide is arranged between each power indicator light source and the corresponding power indicator light emission hole.

[0070] Multiple power indicator light sources are arranged on circuit board 2. These light sources are typically LEDs (light-emitting diodes), which have advantages such as small size, low power consumption, high brightness, and fast response speed. The multiple power indicator light sources are arranged on circuit board 2 in a certain pattern, such as a linear arrangement or a matrix arrangement, to facilitate visual display of the power level by illuminating different numbers of light sources. Multiple power indicator light-emitting holes 13 are correspondingly provided on housing 1. The shape and size of the light-emitting holes 13 are determined according to design requirements; common shapes include circles and squares. The positions of the light-emitting holes 13 correspond one-to-one with the positions of the power indicator light sources, ensuring that the light emitted from each power indicator light source can be accurately projected through the light-emitting holes 13.

[0071] By setting multiple power indicator lights, when the battery level of the smart glasses changes, the system controls different numbers of power indicator lights to light up based on the power information fed back by the power detection module. For example, when the battery is fully charged, all power indicator lights are lit; when the battery level drops to a certain point, only some power indicator lights are lit, and the number of lights lit is proportional to the battery level.

[0072] By illuminating different numbers of power indicator lights to display the battery level, users can quickly and easily understand the remaining battery level of their smart glasses at a glance, without needing complicated operations or looking at other information, thus improving convenience and user experience. Multiple power indicator lights provide a more precise battery display, allowing users to more accurately perceive changes in battery level and make timely charging decisions, avoiding disruptions to normal use due to insufficient power.

[0073] In one embodiment, reference is made to Figures 5-6 Multiple power indicator light guides are connected to the same fixing plate 34.

[0074] During the production process, multiple power indicator light guides are first connected to the fixing plate 34 to form an assembly module. Then, this module is installed as a whole onto the circuit board 2 or the housing 1 of the central control unit. The fixing plate 34 provides a unified platform for the installation of the power indicator light guides. The installers do not need to perform individual positioning and fixing operations on each light guide 3. Compared with installing the power indicator light guides one by one, this method reduces the complexity of the installation process, reduces installation errors caused by human factors, greatly shortens the installation time, and improves production efficiency.

[0075] In addition, after multiple power indicator light guides are connected to the fixed plate 34, their relative positions are fixed, forming a more stable overall structure. This structure can better resist external impacts and vibrations, improving the reliability and service life of the power indicator module.

[0076] Optionally, the fixing plate 34 and the plurality of power indicator light guides are integrally formed.

[0077] The fixing plate 34 and multiple power indicator light guides are manufactured using a one-piece molding process, with injection molding being a common one-piece molding process. In injection molding, a specific plastic raw material is heated to a molten state and then injected into a pre-designed mold. The shape of the mold precisely corresponds to the structure of the fixed plate 34 and the multiple power indicator light guides after assembly. After the raw material cools and solidifies, the one-piece molded component is obtained. There are no obvious connecting gaps between the one-piece molded fixing plate 34 and the power indicator light guides; they are a continuous whole. The one-piece molding process can complete the manufacturing of the fixing plate 34 and multiple power indicator light guides in a single injection molding process, greatly shortening the production cycle.

[0078] In one embodiment, the fixing plate 34 is provided with a fixing part 341, which is connected and fixed to the circuit board 2 or the outer casing 1.

[0079] Similarly, the fixing part 341 acts as a connecting bridge, tightly connecting the fixing plate 34 to the circuit board 2 or the housing 1, which is equivalent to building a stable "support frame" for multiple power indicator light guides. This allows each power indicator light guide to obtain stable support through the connection between the fixing plate 34 and the circuit board 2 or the housing 1, avoiding loosening, displacement or even damage due to excessive local stress, thereby significantly improving the overall stability of the power indicator module and reducing relative displacement.

[0080] Furthermore, by providing a fixing part 341 on a fixing plate 34, multiple power indicator light guides can be fixed simultaneously with just this one fixing part 341, greatly reducing the number of connecting parts and lowering component costs. In addition, during installation, multiple power indicator light guides can be fixed simultaneously by simply connecting the fixing plate 34 to the circuit board 2 or the housing 1 via the fixing part 341. Compared to installing and fixing each light guide 3 individually, this installation method significantly saves installation time and labor costs.

[0081] In one embodiment, the fixing part 341 is provided with a fixing hole 3411, and the circuit board 2 is provided with a corresponding threaded hole. The screw 4 passes through the fixing hole 3411 and is threaded into the threaded hole, thereby realizing the connection and fixation between the fixing part 341 and the circuit board 2.

[0082] During installation, first align the second light guide part 32 of each light guide 3 with and insert it into the corresponding light outlet hole 13 of the outer casing 1. Align the fixing hole 3411 on the fixing plate 34 with the threaded hole on the circuit board 2. Then, pass the tip of the screw 4 through the fixing hole 3411 and gradually screw it into the threaded hole. When the screw 4 is tightened, the head of the screw 4 will press tightly against the fixing plate 34, and firmly fix the fixing plate 34 on the circuit board 2, thereby realizing the connection and fixation between the fixing part 341 and the circuit board 2.

[0083] The threaded connection between screw 4 and the threaded hole provides strong bonding force, ensuring a tight fit between the mounting plate 34 and the circuit board 2, preventing loosening. When maintenance or replacement of the power indicator module is required, simply unscrew screw 4 with a screwdriver to remove the light guide 3 entirely from the circuit board 2. This detachable design facilitates the inspection, repair, and replacement of components such as the power indicator light guide, reducing maintenance costs and time.

[0084] Fixing the light guide 3 directly onto the circuit board 2 instead of the housing 1 is more conducive to the precise alignment of the first light guide part 31 on the light guide 3 with the indicator light source 21, thereby reducing light leakage problems caused by poor alignment accuracy or loose fit.

[0085] In one embodiment, the end face of the first light guide 31 away from the intermediate light guide 33 is the incident surface 311, and the end face of the second light guide 32 away from the intermediate light guide 33 is the exit surface 321; the outer surface of the light guide 3 is coated with a light-shielding layer, and the light-shielding layer avoids covering the incident surface 311 and the exit surface 321.

[0086] In this light guide, the end face of the first light guide 31 furthest from the intermediate light guide 33 serves as the incident surface 311, which is the starting position for light to enter the light guide 3. The light emitted by the electrical indicator light source enters the interior of the light guide 3 from this surface and begins its transmission process within the light guide 3. The end face of the second light guide 32 furthest from the intermediate light guide 33 serves as the exit surface 321, which is the position where light leaves the light guide 3 and enters the human eye.

[0087] The outer surface of the light guide 3 is coated with a light-shielding layer, but avoids covering the incident surface 311 and the exit surface 321. The function of the light-shielding layer is to prevent light from leaking out from unexpected parts of the light guide 3, ensuring that the light can only enter from the incident surface 311, be transmitted inside the light guide 3, and then be emitted from the exit surface 321. This can improve the utilization rate of light and make the indicator light display clearer and brighter.

[0088] In addition, the light-shielding layer can prevent light from leaking out from unexpected parts of the light guide 3, thereby preventing users from observing internal light leakage through the splicing gaps of the outer shell 1, reducing the occurrence of user distrust of the product.

[0089] Optionally, the light-shielding layer is preferably made of black material, such as, but not limited to, black ink, black coating, or black film.

[0090] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0091] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0092] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0093] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A central control unit for smart glasses, characterized in that, include: The outer shell (1) has an internal mounting cavity and a light-emitting hole (13) on the side wall that connects the mounting cavity to the external environment; A circuit board (2) is installed in the mounting cavity; an indicator light source (21) is provided on the circuit board (2), and the light emission direction of the indicator light source (21) forms an angle with the hole axis direction of the light emission hole (13); The light guide (3) includes a first light guide (31), a relay light guide (33), and a second light guide (32) connected in sequence. The end of the first light guide (31) away from the relay light guide (33) is aligned with the indicator light source (21), and the end of the second light guide (32) away from the relay light guide (33) is aligned with the light outlet (13). The relay light guide (33) is provided with a reflective slope (331), which can reflect the incident light guided by the first light guide (31) to the second light guide (32), so that the second light guide (32) guides the light to the light outlet (13) for projection.

2. The central control unit of the smart glasses according to claim 1, characterized in that, The surface of the reflective slope (331) is provided with a reflective layer.

3. The central control unit of the smart glasses according to claim 1, characterized in that, The shape of the second light guide (32) is adapted to the shape of the light outlet hole (13), and the end of the second light guide (32) away from the intermediate light guide (33) is inserted into the light outlet hole (13) for insertion and fixation.

4. The central control unit of the smart glasses according to claim 1 or 3, characterized in that, The light guide (3) is also connected to a fixing part (341), which is connected and fixed to the circuit board (2) or the outer shell (1).

5. The central control unit of the smart glasses according to claim 4, characterized in that, The fixing part (341) is fixed to the circuit board (2) or the housing (1) by screws (4), adhesive or snap-fit.

6. The central control unit of the smart glasses according to claim 1, characterized in that, The indicator light source (21) includes multiple power indicator light sources; the light outlet (13) includes multiple power indicator light outlets, and the power indicator light outlets are arranged in a one-to-one correspondence with the power indicator light sources; the light guide (3) includes a power indicator light guide, and a power indicator light guide is arranged between each power indicator light source and the corresponding power indicator light outlet.

7. The central control unit of the smart glasses according to claim 6, characterized in that, Multiple power indicator light guides are connected to the same mounting plate (34).

8. The central control unit of the smart glasses according to claim 7, characterized in that, The fixing plate (34) is provided with a fixing part (341), which is connected and fixed to the circuit board (2) or the outer shell (1).

9. The central control unit of the smart glasses according to claim 8, characterized in that, The fixing part (341) is provided with a fixing hole (3411), and the circuit board (2) is provided with a corresponding threaded hole. The screw (4) passes through the fixing hole (3411) and is threaded into the threaded hole to realize the connection and fixation between the fixing part (341) and the circuit board (2).

10. The central control unit of the smart glasses according to claim 1, characterized in that, The end face of the first light guide (31) away from the intermediate light guide (33) is the incident surface (311), and the end face of the second light guide (32) away from the intermediate light guide (33) is the exit surface (321); the outer surface of the light guide (3) is coated with a light shielding layer, and the light shielding layer avoids covering the incident surface (311) and the exit surface (321).

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