Camera module and smart wearable device

Abstract

This application discloses a camera module and a smart wearable device. The camera module includes a camera module, a piezoelectric component, and a control module. The piezoelectric component includes an elastic element and at least one set of piezoelectric structures. The elastic element extends along a first direction, and each set of piezoelectric structures includes at least one piezoelectric sheet. Each piezoelectric sheet extends along the first direction and is spaced apart around the elastic element. The camera module is disposed at a first end of the elastic element along the first direction. The control module is electrically connected to each piezoelectric sheet. The control module controls the voltage applied to each piezoelectric sheet, causing each piezoelectric sheet to bend the first end of the elastic element and deviate from the first direction. The camera module provided by this application has a wider field of view, improving the flexibility of the camera module in acquiring images or videos.

Description

Technical Field

[0001] This application belongs to the field of smart wearable device technology, specifically relating to a camera module and a smart wearable device. Background Technology

[0002] With the development of smart wearable devices, the flexible acquisition of images and videos has become a hot research topic in order to improve the wearing experience. In related technologies, smart devices are usually equipped with camera modules to acquire image or video information. However, due to the relatively fixed setting of camera modules, the field of view for acquiring video or image information is small, which affects the user experience. Summary of the Invention

[0003] This application aims to provide a camera module and a smart wearable device that at least solves one of the problems in the background technology.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows: According to a first aspect of this application, a camera module is provided, comprising: Camera module, piezoelectric components, and control module; The piezoelectric component includes an elastic element and at least one set of piezoelectric structures. Each set of piezoelectric structures includes at least one piezoelectric sheet. The elastic element extends along a first direction, and the at least one piezoelectric sheet extends along the first direction and is arranged at intervals around the periphery of the elastic element around the first direction. The camera module is disposed at the first end of the elastic member along the first direction. The control module is electrically connected to each of the piezoelectric sheets. The control module controls the voltage applied to each of the piezoelectric sheets, so that each piezoelectric sheet can drive the first end of the elastic member to bend and deviate from the first direction.

[0005] Optionally, each group of piezoelectric structures includes a first piezoelectric sheet and a second piezoelectric sheet; Each of the first piezoelectric elements and each of the second piezoelectric elements extends along the first direction and is arranged at intervals around the first direction on the periphery of the elastic element; Each of the first piezoelectric elements and each of the second piezoelectric elements are electrically connected to the control module.

[0006] Optionally, the elastic element is configured as a column structure, and the axis of the column structure extends along the first direction; The piezoelectric component includes multiple sets of piezoelectric structures, which are uniformly arranged on the periphery of the column structure; and / or, the first piezoelectric sheet and the corresponding second piezoelectric sheet are symmetrically arranged on the periphery of the elastic element.

[0007] Optionally, the control module can adjust the bending direction of the elastic element by controlling the working state of each group of piezoelectric structures and / or by controlling the magnitude of the voltage applied to each of the first piezoelectric sheet and each of the second piezoelectric sheet.

[0008] Optionally, the elastic element is provided with a groove extending along the first direction on its periphery, the number of the grooves matching the number of the piezoelectric sheets, and each piezoelectric sheet is respectively embedded in the groove.

[0009] Optionally, the control module includes a circuit board and a mounting bracket disposed on the circuit board; The second end of the elastic element along the first direction is inserted into the fixed base, and each of the piezoelectric pieces is electrically connected to the circuit board.

[0010] Optionally, the camera module is detachably fixed to the first end of the elastic member and electrically connected to the control module.

[0011] Optionally, the camera module includes a lens and a compression member disposed around the lens. The first end of the elastic member is provided with an assembly groove, and the side wall of the assembly groove is provided with a snap-fit ​​groove. The lens is mounted in the mounting slot, and the compression component is snapped into the snap-fit ​​slot to restrict the position of the lens along the first direction.

[0012] Optionally, the compression member is provided with an assembly guide angle, which is used to guide the compression member into the snap-fit ​​groove.

[0013] According to a second aspect of this application, a smart wearable device is provided, comprising: The device body and one or more camera modules as described in the first aspect, the camera modules being mounted on the device body.

[0014] Optionally, the main body of the device is the lens of smart glasses, and the lens includes a front shell, a rear shell, and a sealing cover; The front shell and the rear shell are fastened together to form a receiving cavity. The front shell is provided with an assembly hole that communicates with the receiving cavity. The sealing cap is provided on the side of the assembly hole away from the receiving cavity. The camera module is disposed in the mounting hole and faces the sealing cover. The control module is disposed in the receiving cavity and is electrically connected to the camera module.

[0015] This application provides a piezoelectric assembly with a bendable elastic element and at least one set of piezoelectric structures, wherein the piezoelectric structure includes at least one piezoelectric sheet that can stretch and contract when energized. This allows the control module to control the voltage applied to each piezoelectric sheet to drive the first end of the elastic element to deviate from a first direction and bend in a set direction. This results in the camera module mounted on the first end of the elastic element having a wider field of view, improving the flexibility of acquiring images and videos. When applied to smart wearable devices, this can enhance the user experience.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is one of the structural schematic diagrams of the smart glasses provided in this application; Figure 2 yes Figure 1 Exploded view; Figure 3 This is one of the assembly diagrams of the camera module and piezoelectric components provided in the application; Figure 4 yes Figure 3 Exploded view; Figure 5 yes Figure 3 Cross-sectional view at point AA; Figure 6 yes Figure 5 A magnified view of a section at point B in the middle; Figure 7 This is a structural diagram of the camera module provided in the application; Figure 8 yes Figure 7 A magnified view of a section at point C; Figure 9 This is the second assembly diagram of the camera module and piezoelectric components provided in the application; Figure 10 yes Figure 9 One of the cross-sectional views at point DD; Figure 11 yes Figure 9 Sectional view at point DD (2nd section); Figure 12 This is a schematic diagram of the piezoelectric component bending after being energized; Figure 13 This is the second structural schematic diagram of the smart glasses provided in this application; Figure 14 yes Figure 13 Cross-sectional view at EE; Figure 15 yes Figure 14 A magnified view of a section at point F in the middle; Figure 16 yes Figure 15 A schematic diagram of the field of view of the camera module in the diagram.

[0018] Figure label: 1. Camera module; 11. Lens; 12. Compressor; 2. Piezoelectric component; 21. Piezoelectric structure; 211. First piezoelectric element; 212. Second piezoelectric element; 22. Elastic element; 221. Assembly groove; 222. Snap-fit ​​groove; 3. Control module; 31. Circuit board; 32. Mounting bracket; 4. Lens body; 41. Front shell; 411. Assembly hole; 42. Rear shell; 43. Sealing cap. Detailed Implementation

[0019] Embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application are within the scope of protection of this application.

[0020] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0021] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this application.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] The following is combined Figures 1 to 16 This application describes a camera module and a smart wearable device according to embodiments thereof.

[0024] like Figures 3 to 12 As shown, according to a first aspect of this application, a camera module is provided, including: a camera module 1, a piezoelectric assembly 2, and a control module 3; the piezoelectric assembly 2 includes elastic elements 22 and at least one set of piezoelectric structures 21, each set of piezoelectric structures 21 including at least one piezoelectric sheet, the elastic elements 22 extending along a first direction (X direction in the figure, normally, the initial orientation of the camera module 1 is the first direction), at least one piezoelectric sheet extending along the first direction and arranged at intervals around the elastic elements 22; the camera module 1 is disposed at a first end of the elastic elements 22 along the first direction, the control module 3 is electrically connected to each piezoelectric sheet, and the control module 3 controls the voltage value applied to each piezoelectric sheet so that each piezoelectric sheet can drive the first end of the elastic elements 22 to bend and deviate from the first direction.

[0025] Specifically, in this embodiment, the piezoelectric component 2, as a key component for achieving viewing angle adjustment, includes an elastic element 22 and at least one set of piezoelectric structures 21. Each set of piezoelectric structures 21 further includes at least one piezoelectric sheet, which extends along a first direction and is arranged at intervals on the circumferential side surface of the elastic element 22 with the first direction as its central axis. The elastic element 22 itself also extends along the first direction (i.e., the length direction of the elastic element 22 and each piezoelectric sheet is the first direction), providing a mounting base and deformation support for the piezoelectric sheets, and allowing the first end of the elastic element 22 to bend in a direction deviating from the first direction after the piezoelectric sheets undergo expansion and contraction under applied voltage, while the second end of the elastic element 22 is usually fixed.

[0026] Furthermore, the camera module 1 is fixedly mounted on the first end of the elastic member 22 along the first direction, and can synchronously change its orientation with the bending deformation of the elastic member 22. This achieves the purpose of the control module 3 controlling the voltage applied to each piezoelectric sheet or the voltage difference between different piezoelectric sheets, causing the first end of the elastic member 22 to bend away from the first direction, thereby enabling the camera module 1 on the first end of the elastic member 22 to change the lens orientation, that is, to change the lens orientation of the camera module 1 from the first direction to a direction that forms a certain angle with the first direction, thus achieving the purpose of flexible angle switching of the camera module 1. Each piezoelectric sheet is made of piezoelectric material, such as piezoelectric ceramic, and there can be one or two piezoelectric sheets, depending on the actual needs. The elastic member 22 can be made of a metal material with a certain degree of elasticity, such as stainless steel, or it can be made of piezoelectric material.

[0027] Based on the above structure, the control module 3 is electrically connected to each piezoelectric element to control the bending deformation direction of the elastic element 22 by controlling the voltage applied to each piezoelectric element. The overall structure organically combines the piezoelectric drive unit with the elastic support element to form an actively deformable cantilever drive architecture, providing a structural basis for the multi-directional viewing angle adjustment of the camera module 1, which is different from the traditional fixed installation camera module structure.

[0028] In this embodiment, the core method for adjusting the viewing angle of the camera module is to apply differentiated voltages to the piezoelectric structure 21 through the control module 3, thereby driving the elastic element 22 to undergo directional bending deformation. The control module 3 can independently adjust the voltage applied to each piezoelectric element to control the expansion and contraction of a single element or to create a controllable voltage difference between two elements. Because piezoelectric materials exhibit an inverse piezoelectric effect, piezoelectric elements under different voltages will produce different degrees of expansion and contraction. When there is one piezoelectric element arranged around the periphery, the voltage applied to it determines the magnitude of its expansion and contraction, thus controlling the degree of bending of the elastic element 22 and adjusting the orientation of the camera module 1. When there are two piezoelectric elements arranged around the periphery, by controlling the voltage values ​​on the two elements, a voltage difference can be created, resulting in a difference in deformation and an unbalanced force on the elastic element 22, thereby driving the elastic element 22 to bend in a predetermined direction.

[0029] In this embodiment, the camera module 1 can deflect in multiple directions as the elastic element 22 bends in the direction, significantly expanding the field of view for image and video acquisition, improving the flexibility and comprehensiveness of information collection, and avoiding blind spots in traditional fixed-view shooting. Secondly, adjustment is achieved through piezoelectric drive and voltage difference control, resulting in fast response speed, high control precision, and a compact structure that eliminates the need for complex mechanical transmission components, making it suitable for applications with stringent requirements on size and weight, such as smart wearable devices.

[0030] Furthermore, when applied to smart wearable devices, this module allows for flexible adjustment of the shooting angle according to user needs, meeting image and video acquisition requirements in different scenarios and effectively improving the wearing experience and ease of use of smart wearable devices. Simultaneously, its overall structural design is simple and reliable, and the piezoelectric drive method consumes relatively low power, balancing functionality and device battery life, further enhancing the performance of smart wearable devices.

[0031] Optionally, each set of piezoelectric structures includes a first piezoelectric sheet 211 and a second piezoelectric sheet 212; each first piezoelectric sheet 211 and each second piezoelectric sheet 212 extends along a first direction and is arranged at intervals around the elastic member 22; each first piezoelectric sheet 211 and each second piezoelectric sheet 212 is electrically connected to the control module 3.

[0032] Specifically, in this embodiment, the elastic element 22 extends along a first direction, and its first end is equipped with the camera module 1. Therefore, the directional bending of the elastic element 22 will directly drive the camera module 1 to deflect synchronously, changing its shooting orientation. By continuously adjusting the magnitude and direction of the voltage difference between the first piezoelectric sheet 211 and the second piezoelectric sheet 212, the degree and direction of bending of the elastic element 22 can be precisely controlled, thereby realizing the flexible adjustment of the viewing angle range of the camera module 1, completing the acquisition of image and video information from multiple directions, and improving the adjustment range of the camera module angle.

[0033] Optionally, such as Figures 3 to 6 ,as well as Figures 9 to 12 As shown, the elastic element 22 is configured as a column structure, and the axis of the column structure extends along the first direction; the piezoelectric assembly 2 includes multiple sets of piezoelectric structures 21, which are uniformly arranged on the periphery of the column structure; and / or, the first piezoelectric sheet 211 and the corresponding second piezoelectric sheet 212 are symmetrically arranged on the periphery of the elastic element 22.

[0034] Specifically, in this embodiment, the elastic element 22 is configured as a columnar structure with its axis extending along a first direction, and multiple sets of piezoelectric structures 21 are evenly arranged around its periphery. Different voltage values ​​can be applied to different piezoelectric sheets by the control module 3, driving the elastic element 22 to have more bending directions. The columnar structure provides a symmetrical and regular mounting base for the multiple sets of piezoelectric sheets. The multiple sets of piezoelectric structures 21 are evenly distributed, and the voltage of each set can be adjusted independently by the control module 3, enabling the elastic element 22 to deflect precisely in multiple directions. This allows the camera module 1 to obtain a larger and more uniform field of view coverage, effectively solving the problems of limited deflection and insufficient adjustment range that are common in traditional single-set drives, and significantly improving the flexibility and comprehensiveness of image and video acquisition.

[0035] In another embodiment, such as Figures 10 to 11As shown, the first piezoelectric element 211 and the second piezoelectric element 212 are symmetrically arranged around the elastic element 22, which can further improve the driving accuracy and adjustment stability. Figure 10 This refers to the arrangement of two sets of piezoelectric structures 21. Figure 11 This design employs a configuration of four sets of piezoelectric structures 21. The symmetrical structure of the first piezoelectric element 211 and the second piezoelectric element 212 allows for symmetrical expansion and contraction under voltage difference, creating a balanced torque on the elastic element 22, reducing deflection deviation, and ensuring precise adjustment of the camera module 1 according to the set direction. Furthermore, the symmetrical arrangement balances the stress distribution during deformation of the elastic element 22, reducing fatigue wear and extending the module's lifespan. This design, combined with the columnar structure and multiple evenly arranged sets, enables more refined and stable viewing angle adjustment, meeting the needs of smart wearable devices for miniaturized, high-precision camera modules, and improving user experience and device reliability. The columnar structure can be cylindrical.

[0036] Optionally, the control module 3 can adjust the bending direction of the elastic element 22 by controlling the working state of each group of piezoelectric structures and / or by controlling the magnitude of the voltage applied to each first piezoelectric sheet 211 and each second piezoelectric sheet 212.

[0037] Specifically, in one embodiment, such as Figure 10 and Figure 12 As shown, the elastic element 22 has four piezoelectric plates on its periphery. Two opposing piezoelectric plates (the first piezoelectric plate 211 and the opposing second piezoelectric plate 212) form a set of piezoelectric structures. In practical applications, the bending direction of the elastic element 22 is adjusted by controlling the working state of each set of piezoelectric structures. Specifically, the first set of piezoelectric structures can be made inactive (no voltage applied), while the second set of piezoelectric structures is active. When the voltage applied to the first piezoelectric plate 211a in the second set of piezoelectric structures is greater than the voltage applied to the second piezoelectric plate 212a on the opposite side, according to the working principle of piezoelectric ceramics, the entire piezoelectric assembly bends towards the side where the second piezoelectric plate 212a is located in the second set of piezoelectric structures.

[0038] In the above structure, when the control module 3 controls both sets of piezoelectric structures to work, making the voltage of the first piezoelectric element 211b in the first set of piezoelectric structures and the voltage of the second piezoelectric element 212a in the second set of piezoelectric structures greater than those of the second piezoelectric element 212b in the first set of piezoelectric structures and the first piezoelectric element 211a in the second set of piezoelectric structures, the entire piezoelectric assembly will face towards... Figure 10 The hollow arrow H in the image indicates a bend in the direction shown.

[0039] When there are enough piezoelectric structures, the piezoelectric component can be bent in more directions. Theoretically, as long as there are enough piezoelectric sheets, the piezoelectric structure can be bent in any desired direction, greatly increasing the angular range of the camera module. Figure 11 As shown. Optionally, such as Figures 10 to 11 As shown, the elastic member 22 has grooves extending in the first direction on its periphery. The number of grooves matches the number of piezoelectric pieces, and each piezoelectric piece is embedded in its respective groove.

[0040] Specifically, in this embodiment, grooves extending along the first direction and matching the number of piezoelectric sheets are provided around the elastic element 22, and each piezoelectric sheet is embedded in the corresponding groove, which can effectively improve the bonding stability and driving reliability of the piezoelectric sheet and the elastic element 22. The grooves provide precise positioning and limiting for the piezoelectric sheets, preventing displacement, detachment or skew during deformation, and ensuring the consistency and controllability of the driving torque transmission.

[0041] Meanwhile, the embedded structure integrates the piezoelectric element and the elastic component 22 into a single unit, reducing assembly gaps, improving deformation response speed and adjustment accuracy, reducing the risk of stress concentration, and extending the module's service life. This compact and reliable structure facilitates miniaturization, meets the space and reliability requirements of smart wearable devices, and further enhances the adjustment stability and performance of the camera module.

[0042] Optionally, such as Figures 7 to 8 As shown, the control module 3 includes a circuit board 31 and a mounting base 32 disposed on the circuit board 31; the second end of the elastic member 22 along the first direction is inserted into the mounting base 32, and each piezoelectric piece is electrically connected to the circuit board 31 respectively.

[0043] Specifically, in this embodiment, the control module 3 adopts a structure combining a circuit board 31 and a fixed base 32. The second end of the elastic element 22 along the first direction is inserted into the fixed base 32, while each piezoelectric piece is electrically connected to the circuit board 31. This arrangement brings significant technical benefits in terms of structural assembly, electrical connection, and overall reliability. The circuit board 31 can be a flexible circuit board to adapt to different installation scenarios. Furthermore, the camera module 1 is also electrically connected to the control module 3 to control the working state of the camera module 1.

[0044] The mounting base 32 provides stable mechanical support and precise positioning for the second end of the elastic element 22. The elastic element 22 is reliably fixed via a plug-in connection, effectively preventing loosening or displacement during bending deformation, ensuring stable transmission of driving torque, and guaranteeing the accuracy of the camera module 1's viewing angle adjustment. Meanwhile, the circuit board 31, as the control core, not only performs voltage regulation but also simplifies the electrical wiring structure through direct electrical connection with the piezoelectric element, reducing intermediate transfer links, lowering signal loss and the risk of poor contact, and improving drive response speed and control stability.

[0045] Furthermore, the plug-in assembly method facilitates module assembly and maintenance, improves production efficiency, and the compact structural layout enables miniaturized integration of camera modules, adapts to the space requirements of smart wearable devices, effectively improves the service life and performance of camera modules, and further optimizes the image and video acquisition experience of smart wearable devices.

[0046] Optionally, such as Figures 3 to 6 As shown, the camera module 1 is detachably fixed to the first end of the elastic member 22 and electrically connected to the control module 3.

[0047] Specifically, in this embodiment, the camera module 1 is detachably fixed to the first end of the elastic element 22, which significantly improves the ease of maintenance, adaptability, and cost-effectiveness of the camera module. The detachable structure facilitates the individual disassembly, replacement, or repair of the camera module 1 without requiring the complete replacement of the elastic element 22 and piezoelectric assembly 2, thus reducing maintenance costs and material waste. The detachable structure can be achieved through snap-fit, clip-on, or threaded connections.

[0048] Meanwhile, this design supports flexible replacement of camera modules 1 with different specifications and models according to different application scenarios, adapting to diverse image and video acquisition needs and improving the module's versatility and scenario adaptability. Furthermore, the detachable connection facilitates module assembly and debugging, simplifies the production process, improves assembly efficiency, and facilitates future upgrades and iterations, extending the overall device's lifespan and further optimizing the user experience and product competitiveness of smart wearable devices. In addition, camera module 1 is electrically connected to control module 3, enabling control module 3 to control the collaborative operation of camera module 1 and piezoelectric component 2, further enhancing the user experience.

[0049] Optionally, such as Figures 5 to 6 As shown, the camera module 1 includes a lens 11 and a compression member 12 disposed around the lens 11. An assembly groove 221 is provided on the end face of the first end of the elastic member 22, and a snap-fit ​​groove 222 is provided on the side wall of the assembly groove 221. The lens 11 is assembled in the assembly groove 221, and the compression member 12 is snapped into the snap-fit ​​groove 222 to limit the position of the lens 11 along the first direction.

[0050] Specifically, in this embodiment, the camera module 1 adopts a structure in which a lens 11 and a compression member 12 cooperate. The first end face of the elastic member 22 is provided with an assembly groove 221, and the side wall is provided with a snap-fit ​​groove 222. By assembling the lens 11 into the assembly groove 221 and snapping the compression member 12 into the snap-fit ​​groove 222, the position of the lens 11 along the first direction is restricted. Among them, the assembly groove 221 provides precise positioning and initial fixation for the lens 11, ensuring the coaxiality of the lens 11 and the elastic member 22, and ensuring shooting stability; the compression member 12 snaps into the snap-fit ​​groove 222, forming a reliable axial limit, effectively preventing the lens 11 from loosening or falling off along the first direction during equipment use and deformation of the elastic member 22, thereby improving structural reliability.

[0051] In the above structure, the snap-fit ​​assembly requires no additional fasteners, simplifying the structure, reducing costs, and facilitating easy disassembly and assembly. This allows for individual replacement and maintenance of the lens 11, improving the module's maintainability. Simultaneously, the compact structure facilitates miniaturization, adapting to the space requirements of smart wearable devices. Furthermore, the stable connection and consistent response prevent imaging deviations caused by lens 11 displacement, ensuring high-quality image and video acquisition and enhancing the user experience. The compression component 12 can be made of silicone. Additionally, the bottom of the lens 11 can be glued to the bottom wall of the assembly slot 221 to restrict the lens 11's rotational freedom around the first direction.

[0052] Optionally, such as Figure 6 As shown, the compression component 12 is provided with an assembly guide angle, which is used to guide the compression component 12 into the snap-fit ​​groove 222.

[0053] Specifically, in this embodiment, an assembly guide angle is provided on the compression component 12, which can effectively guide the compression component 12 smoothly into the snap-fit ​​groove 222, achieving precise and efficient assembly positioning. The assembly guide angle, through a beveled transition, reduces the difficulty of aligning the compression component 12 with the snap-fit ​​groove 222, avoiding jamming, wear, or structural damage caused by misalignment during assembly, thus improving assembly efficiency and yield. Simultaneously, the guide angle structure allows the compression component 12 to smoothly slide into the snap-fit ​​groove 222, forming a stable snap-fit ​​fit, ensuring reliable positioning of the lens 11 along the first direction, preventing loosening or detachment. This design simplifies assembly operations, eliminates the need for complex tooling, facilitates production and subsequent maintenance, and has a compact structure that does not occupy additional space, adapting to the miniaturization requirements of smart wearable devices, further improving the assembly reliability and operational stability of the camera module.

[0054] According to the second aspect of this application, as shown in the figure to Figure 2 ,as well as Figures 13 to 14 As shown, a smart wearable device is provided, including a device body and one or more camera modules in the first aspect, the camera modules being mounted on the device body.

[0055] Specifically, in this embodiment, the provided smart wearable device integrates the camera module of the first aspect onto the main body of the device, combining piezoelectric driving and flexible viewing angle adjustment camera technology with the wearable device, thereby achieving a significant improvement in the overall user experience. (Refer to...) Figure 15 and Figure 16 This demonstrates the viewing angle range of the camera module 1 before the elastic element 22 is deformed, and the maximum viewing angle range of the camera module after the elastic element 22 is deformed after the control module 3 applies voltage to each piezoelectric sheet. It can be seen that the deformation of the elastic element 22 enables the camera to have a large viewing angle range.

[0056] The camera module can achieve multi-directional and wide-range viewing angle deflection by relying on the elastic element 22 and the piezoelectric structure 21, breaking through the limitations of fixed viewing angle and limited range of traditional wearable devices, meeting the user's need to flexibly acquire images and videos in different scenarios, and enhancing the practicality and fun of the device.

[0057] Meanwhile, the camera module features a compact structure and reliable drive, and its assembly with the main device does not significantly increase its size or weight, meeting the core requirements of lightweight, portable, and comfortable wearability for smart wearable devices. The modular assembly method facilitates production assembly and subsequent maintenance, improving product yield and maintainability.

[0058] In addition, this integrated design enables wearable devices to have more flexible image acquisition capabilities, expanding functions such as motion recording, interactive shooting, and panoramic perception, enriching application scenarios, and improving the overall performance of smart wearable devices.

[0059] Optionally, such as Figures 1 to 2 ,as well as Figures 13 to 16 As shown, the main body of the device is the lens 4 of smart glasses. The lens 4 includes a front shell 41, a rear shell 42, and a sealing cover 43. The front shell 41 and the rear shell 42 are fastened together to form a receiving cavity. The front shell 41 is provided with an assembly hole 411 that communicates with the receiving cavity. The sealing cover 43 is placed on the side of the assembly hole 411 away from the receiving cavity. The camera module is disposed in the assembly hole 411 and the camera module 1 faces the sealing cover 43. The control module 3 is disposed in the receiving cavity and is electrically connected to the camera module 1.

[0060] Specifically, in this embodiment, the main body of the device is a smart glasses lens 4. The lens 4 is formed by fastening a front shell 41 and a rear shell 42 together to form a receiving cavity. An assembly hole 411 is opened in the front shell 41 to connect to the receiving cavity, which can realize the integrated integration of the camera module and the lens 4. The camera module is placed in the assembly hole 411 with the camera module 1 facing the sealing cover 43 (the sealing cover 43 is usually made of transparent material). The control module 3 is housed in the receiving cavity. This ensures that the lens 11 is oriented correctly and the imaging is not obstructed. At the same time, the control circuit and other components are hidden inside the lens 4, making full use of the space of the lens 4, making the overall structure compact and the appearance simple. It does not affect the wearing comfort and aesthetics of the smart glasses. At the same time, it facilitates the assembly and positioning of the module and the lens 4, improving production assembly efficiency.

[0061] Furthermore, the sealing cover 43 is located on the outside of the mounting hole 411, effectively protecting the camera module inside the mounting hole 411 and preventing the intrusion of dust, moisture, sweat, etc., thus avoiding affecting the imaging quality of the lens 11 and the stability of the internal circuit, and extending the module's service life. The control module 3 is placed inside the receiving cavity and is electrically connected to the camera module 1 but arranged separately. This reduces the interference of vibration and deformation of the lens 11 during operation on the control circuit, ensuring accurate voltage control and stable drive. This layout balances protection and functionality, enabling the camera module to work reliably in the complex operating environment of smart glasses. At the same time, the sealed structure does not increase the volume of the lens body 4, further improving the practicality and durability of the smart glasses.

[0062] Optionally, such as Figures 1 to 2 As shown, the smart wearable device includes multiple camera modules, which are respectively mounted in different positions on the main body of the device.

[0063] Specifically, in this embodiment, the smart wearable device employs multiple camera modules, each mounted in a different location on the main body of the device. This enables simultaneous acquisition of images and videos from multiple directions and angles, significantly expanding the overall field of view coverage, eliminating blind spots present in a single camera module, and improving the comprehensiveness and flexibility of information acquisition. The collaborative operation of multiple modules can meet the needs of complex scenarios such as panoramic shooting, stereo imaging, and environmental perception, enhancing the device's functional expandability. Simultaneously, each module is independently arranged and does not interfere with others, allowing for flexible configuration according to actual needs, improving the device's adaptability to various scenarios and enhancing the user experience, thereby strengthening the overall performance and application value of the smart wearable device.

[0064] For example, such as Figures 1 to 2 As shown, in smart glasses applications, three camera modules can be set up, located between the two frames, at the front of the left temple and the right temple, respectively, to adapt to different application scenarios.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," 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 this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0066] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A camera module, characterized in that, include: Camera module (1), piezoelectric components and control module (3); The piezoelectric component includes an elastic element (22) and at least one set of piezoelectric structures. Each set of piezoelectric structures includes at least one piezoelectric sheet. The elastic element (22) extends along a first direction, and the at least one piezoelectric sheet extends along the first direction and is arranged at intervals around the periphery of the elastic element (22) around the first direction. The camera module (1) is disposed at the first end of the elastic element (22) along the first direction. The control module (3) is electrically connected to each of the piezoelectric sheets. The control module (3) controls the voltage applied to each of the piezoelectric sheets so that each piezoelectric sheet can drive the first end of the elastic element (22) to bend and deviate from the first direction.

2. The camera module according to claim 1, characterized in that, Each group of piezoelectric structures includes a first piezoelectric sheet (211) and a second piezoelectric sheet (212); Each of the first piezoelectric sheet (211) and each of the second piezoelectric sheet (212) extends along the first direction and is arranged at intervals around the first direction on the periphery of the elastic member (22); Each of the first piezoelectric element (211) and each of the second piezoelectric elements (212) are electrically connected to the control module (3).

3. The camera module according to claim 2, characterized in that, The elastic element (22) is configured as a column structure, and the axis of the column structure extends along the first direction; The piezoelectric component includes multiple sets of piezoelectric structures, which are uniformly arranged on the periphery of the column structure; and / or, the first piezoelectric sheet (211) and the corresponding second piezoelectric sheet (212) are symmetrically arranged on the periphery of the elastic member (22).

4. The camera module according to claim 3, characterized in that, The control module (3) can adjust the bending direction of the elastic element (22) by controlling the working state of each group of piezoelectric structures and / or by controlling the magnitude of the voltage applied to each of the first piezoelectric sheet (211) and each of the second piezoelectric sheet (212).

5. The camera module according to claim 1, characterized in that, The elastic element (22) has a groove extending along the first direction on its periphery. The number of grooves matches the number of piezoelectric sheets, and each piezoelectric sheet is embedded in the groove.

6. The camera module according to claim 1, characterized in that, The control module (3) includes a circuit board (31) and a mounting base (32) disposed on the circuit board (31). The second end of the elastic element (22) along the first direction is inserted into the fixed base (32), and each of the piezoelectric pieces is electrically connected to the circuit board (31).

7. The camera module according to claim 1, characterized in that, The camera module (1) is detachably fixed to the first end of the elastic member (22) and electrically connected to the control module (3).

8. The camera module according to claim 1, characterized in that, The camera module (1) includes a lens (11) and a compression member (12) disposed around the lens (11). An assembly groove (221) is provided on the end face of the first end of the elastic member (22), and a snap-fit ​​groove (222) is provided on the side wall of the assembly groove (221). The lens (11) is assembled in the mounting slot (221), and the compression member (12) is snapped into the snap-fit ​​slot (222) to limit the position of the lens (11) along the first direction.

9. The camera module according to claim 8, characterized in that, The compression member (12) is provided with an assembly guide angle, which is used to guide the compression member (12) into the snap-fit ​​groove (222).

10. A smart wearable device, characterized in that, include: The device body and one or more camera modules as described in any one of claims 1-9, wherein the camera modules are mounted on the device body.

11. The smart wearable device according to claim 10, characterized in that, The main body of the device is the lens (4) of smart glasses, and the lens (4) includes a front shell (41), a rear shell (42) and a sealing cover (43). The front shell (41) is fastened to the rear shell (42) and forms a receiving cavity. The front shell (41) is provided with an assembly hole (411) communicating with the receiving cavity. The sealing cap (43) is placed on the side of the assembly hole (411) away from the receiving cavity. The camera module is disposed in the mounting hole (411) and the camera module (1) faces the sealing cover (43). The control module (3) is disposed in the receiving cavity and is electrically connected to the camera module (1).

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