Lens assembly, camera module and electronic device

Abstract

The application discloses a lens assembly, comprising: a housing, which is internally provided with a receiving cavity and comprises a base that defines at least a partial receiving cavity; an optical lens, which is constrained in a movable manner along an optical axis of the optical lens to the inside of the receiving cavity and comprises a lens barrel and a lens assembled in the lens barrel, an outer peripheral surface of the lens barrel is provided with a boss, the boss has opposite first and second surfaces in the direction of the optical axis, the first surface is adjacent to an entrance end of the optical lens, and the second surface is adjacent to an exit end of the optical lens; a bracket, which comprises a mounting portion and a first bearing portion, the mounting portion is fixed to the first surface of the boss through a connecting structure, and the first bearing portion is located at the side of the boss and has a gap between the first bearing portion and a side wall of the boss; and a driving mechanism, which is arranged between the base and the first bearing portion to drive the bracket and the optical lens to move along the optical axis. The application also relates to a camera module provided with the lens assembly and an electronic device provided with the camera module.

Description

Technical Field

[0001] The present invention relates to a camera device, in particular to a lens assembly, a camera module using the lens assembly, and an electronic device using the camera module. Background Art

[0002] In recent years, electronic products and smart devices have increasingly moved toward miniaturization and high performance. This development trend has placed increasingly stringent requirements on the size and imaging capabilities of camera modules, a standard feature of these devices. This has led to a relentless pursuit of compact and integrated camera modules across the electronics and smart device industries. Autofocus, zoom, and image stabilization are being integrated into camera modules in response to this trend.

[0003] At present, existing camera modules usually include important components such as photosensitive components, optical lenses and voice coil motors. Among them, the voice coil motor, as the driving element of the camera module, mainly includes a motor base, a lens carrier movably constrained to the motor base, and a coil and a magnet relatively arranged between the motor base and the lens carrier, such as the coil is arranged on the motor base and the magnet is arranged on the lens carrier, or the magnet is arranged on the motor base and the coil is arranged on the lens carrier. The aforementioned lens carrier is provided with a mounting hole for the optical lens to be installed therein. The thrust generated by the coil and the magnet based on the electromagnetic principle drives the lens carrier to move, thereby driving the optical lens to move, so as to realize the camera module's automatic focus, zoom and anti-shake functions.

[0004] Some camera modules also eliminate the lens carrier and directly set the coil or magnet on the outer surface of the lens barrel to reduce the assembly tolerance between the optical lens and the lens carrier. It also eliminates the height determination process in the traditional packaging process, simplifies the assembly process, avoids the problems of poor height determination and dirty glue that are prone to occur in the traditional height determination process, and can also reduce the height of the camera module.

[0005] In the camera module after the lens carrier is eliminated, the coil is usually wound by enameled wire, which shrinks when it is shaped by hot air baking during the winding process, while the magnet is usually attached to the lens barrel with glue. Therefore, whether the coil or the magnet is installed on the lens barrel, it often involves baking and shaping after assembly; and the installation method of the coil or the magnet causes the coil or the magnet to directly apply force to the outer periphery of the lens barrel. However, since the lens barrel of the optical lens is usually made of thermoplastic resins such as polyamide, polycarbonate, etc., the lens barrel is easily deformed due to force and baking after the coil or the magnet is installed, thereby causing the lens mounting hole in the lens barrel to deform, and then causing the peripheral edge of the optical lens to deform due to extrusion, resulting in a larger range of unstable field curvature fluctuations of the optical lens and a larger MTF value, thereby affecting the imaging performance of the optical lens.

[0006] Furthermore, with the development of electronic products, the demand for miniaturization and thinness of camera modules is increasing. Taking mobile phone camera modules as an example, as mobile phones become increasingly thinner and lighter, the main requirement for camera modules is thickness. Furthermore, with the increase in screen-to-body ratios for front-facing camera modules, the lens of the front-facing camera module needs to be as close to the edge of the phone screen as possible. As existing front-facing camera modules are typically located in the top center or upper left corner of the phone screen, this limits the spacing parameter range between the lens and one side edge of the camera module, or between the lens and two adjacent edges, requiring the camera module to be designed with extremely narrow edges. Summary of the Invention

[0007] One advantage of the present invention is that it provides a lens assembly that changes the pressure-bearing direction of the lens barrel of the optical lens during integrated assembly, can avoid deformation of the lens mounting hole in the lens barrel to the greatest extent, improve the deformation of the peripheral edge of the lens, thereby reducing the field curvature fluctuation instability range and MTF value of the optical lens, and improving the imaging performance of the optical lens.

[0008] Another advantage of the present invention is that it provides a lens assembly that can avoid overheating during the integrated assembly process, making the integrated assembly less likely to cause deformation of the lens mounting hole.

[0009] Another advantage of the present invention is that it provides a lens assembly in which the pressure-bearing portion of the lens barrel is further away from the lens mounting hole, making it less likely for the lens mounting hole to be deformed during integrated assembly.

[0010] Another advantage of the present invention is that it provides a lens assembly with a larger pressure-bearing area of ​​the lens barrel, so that the pressure-bearing area of ​​the lens barrel is smaller, making it less likely for the lens mounting hole to be deformed during integrated assembly.

[0011] One advantage of the present invention is that it provides a camera module that not only simplifies the assembly process, but more importantly, allows for a design with a thinner thickness and / or extremely narrow edges, thereby reducing the size of the model module and facilitating the miniaturization of the camera module.

[0012] An advantage of the present invention is that it provides a camera module that can reduce the tilt of the optical lens caused by inevitable processing tolerances, thereby reducing the tilt angle of the optical lens.

[0013] An advantage of the present invention is that it provides a camera module that can reduce the tilt of the optical lens during the integrated assembly process, thereby reducing the tilt angle of the optical lens.

[0014] In order to achieve at least one of the above advantages or other advantages and purposes, the present invention provides a lens assembly, characterized by comprising:

[0015] A housing having an accommodating cavity therein, wherein the housing includes a base defining at least a portion of the accommodating cavity;

[0016] An optical lens is constrained within the accommodating cavity in a manner capable of movement along its optical axis, and the optical lens comprises a lens barrel and a lens assembled within the lens barrel, wherein a boss is provided on an outer circumferential surface of the lens barrel, the boss having a first surface and a second surface opposite to each other along the optical axis, the first surface being adjacent to a light input end of the optical lens, and the second surface being adjacent to a light output end of the optical lens;

[0017] The bracket includes a mounting portion and a first bearing portion, wherein the mounting portion is fixed to the first surface of the boss through a connecting structure, and the first bearing portion is located on the side of the boss and has a gap between it and the side wall of the boss;

[0018] The driving mechanism is arranged between the base and the first bearing portion of the bracket to drive the bracket and the optical lens to move along the optical axis.

[0019] In some embodiments of the present invention, the bracket is made of metal.

[0020] In some embodiments of the present invention, the first bearing portion of the bracket extends from an edge of one side of the mounting portion toward a direction where the second surface of the boss is located.

[0021] In some embodiments of the present invention, a guide mechanism is provided between the side wall corresponding to the first bearing portion of the bracket and the base on the first bearing portion and / or the boss of the bracket.

[0022] In some embodiments of the present invention, the guide mechanism includes a guide portion and a guide groove that are relatively arranged, and a guide member clamped between the guide portion and the corresponding guide groove, the base has a support column extending along the optical axis direction, and the guide portion is arranged on the support column, and the guide groove is arranged on the first bearing portion of the bracket.

[0023] In some embodiments of the present invention, the guide mechanism includes a guide portion and a guide groove that are relatively arranged, and a guide member clamped between the guide portion and the guide groove, the base has a support column extending along the optical axis direction, and the guide portion is arranged on the support column, and the guide groove is arranged on the side wall of the boss corresponding to the first bearing portion of the bracket.

[0024] In some embodiments of the present invention, there are at least three groups of connection structures, and the three groups of connection structures are not on the same straight line, so that the mounting portion of the bracket can be evenly mounted on the boss of the optical lens.

[0025] In some embodiments of the present invention, the boss of the optical lens and the mounting portion of the bracket are riveted together by a cold riveting process.

[0026] In some embodiments of the present invention, the connection structure is adjacent to a side wall of the boss.

[0027] In some embodiments of the present invention, the mounting portion of the bracket is annular and has a center hole, and the first surface of the boss is provided with at least one first stop portion, wherein the at least one first stop portion is located in the center hole of the mounting portion of the bracket and protrudes from the bracket.

[0028] In some embodiments of the present invention, the mounting portion of the bracket is provided with a notch on a side facing away from the first bearing portion, and one of the first stopping portions is located in the notch.

[0029] In some embodiments of the present invention, the mounting portion of the bracket covers 60-70% of the area of ​​the first surface.

[0030] In some embodiments of the present invention, the base has a light window for allowing light from the optical lens to pass through the accommodating cavity, and a color filter is provided at the light window.

[0031] In some embodiments of the present invention, the magnetic element is mounted on the first supporting portion of the bracket, a first circuit board is provided on the side of the base, and the coil is electrically connected to the first circuit board.

[0032] According to another aspect of the present invention, the present invention also provides a camera module, characterized in that a lens assembly as described above is applied, the base is provided with a photosensitive assembly located outside the accommodating cavity, and the optical lens is located on the photosensitive path of the photosensitive assembly.

[0033] According to another aspect of the present invention, the present invention further provides a camera module, characterized in that the lens assembly as described above is applied, the base is provided with a photosensitive component located outside the accommodating cavity, and the optical lens is located on the light sensing path of the photosensitive component;

[0034] The base is provided with an annular shoulder, the central hole of the shoulder constitutes the light window, and the shoulder has a first side and a second side opposite to each other, the first side is adjacent to the first bearing part of the bracket, and the second side is away from the first bearing part of the bracket, and the width of the first side is greater than the width of the second side.

[0035] According to another aspect of the present invention, the present invention further provides a camera module, characterized in that the lens assembly as described above is applied, the base is provided with a photosensitive component located outside the accommodating cavity, and the optical lens is located on the light sensing path of the photosensitive component;

[0036] The base is provided with an annular shoulder, the central hole of the shoulder forming the light window, and the shoulder having a first side portion and a second side portion opposite to each other, the first side portion being adjacent to the first bearing portion of the bracket, the second side portion being away from the first bearing portion of the bracket, and the width of the first side portion being greater than the width of the second side portion;

[0037] The base is recessed toward the interior of the accommodating cavity to form a recessed portion, the recessed portion is located between the side wall corresponding to the first bearing portion and the first side portion of the base, and the recessed portion is located below the coil.

[0038] According to another aspect of the present invention, the present invention further provides an electronic device, characterized in that it includes a main body, and the main body is equipped with the camera module as described above.

[0039] Further objects and advantages of the present invention will be fully apparent from an understanding of the following description and accompanying drawings.

[0040] These and other objects, features and advantages of the present invention will be more fully understood from the following detailed description, accompanying drawings and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a three-dimensional structural diagram of the camera module in Example 1 of the present invention.

[0042] Figure 2 This is a top view of the camera module in Example 1 of the present invention.

[0043] Figure 3 yes Figure 2 Cross-sectional view in the AA direction.

[0044] Figure 4 yes Figure 2 Cross-sectional view in the middle BB direction.

[0045] Figure 5 It is a three-dimensional structural diagram of the lens assembly in Example 1 of the present invention.

[0046] Figure 6 It is a three-dimensional structural diagram of the lens assembly in Example 1 of the present invention after the cover is removed.

[0047] Figure 7 It is a three-dimensional exploded view of the lens assembly in Example 1 of the present invention.

[0048] Figure 8 It is a cross-sectional view of the camera module in Example 2 of the present invention.

[0049] Figure 9 This is a three-dimensional structural diagram of the lens assembly in Example 3 of the present invention after the cover is removed.

[0050] Figure 10 It is a three-dimensional exploded view of the lens assembly in Example 3 of the present invention. DETAILED DESCRIPTION

[0051] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0052] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0053] In the present invention, the term "a" or "an" in the claims and the specification should be understood as "one or more." That is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple. Unless the disclosure of the present invention clearly indicates that the number of the element is only one, the term "a" or "an" should not be understood as a unique or singular element, and the term "a" or "an" should not be understood as a limitation on the quantity.

[0054] In the description of the present invention, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through a medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0056] Summary of the application

[0057] In recent years, electronic products and smart devices have increasingly moved toward miniaturization and high performance. This development trend has placed increasingly stringent requirements on the size and imaging capabilities of camera modules, a standard feature of these devices. This has led to a relentless pursuit of compact and integrated camera modules across the electronics and smart device industries. Autofocus, zoom, and image stabilization are being integrated into camera modules in response to this trend.

[0058] At present, existing camera modules usually include important components such as photosensitive components, optical lenses and voice coil motors. Among them, the voice coil motor, as the driving element of the camera module, mainly includes a motor base, a lens carrier movably constrained to the motor base, and a coil and a magnet relatively arranged between the motor base and the lens carrier, such as the coil is arranged on the motor base and the magnet is arranged on the lens carrier, or the magnet is arranged on the motor base and the coil is arranged on the lens carrier. The aforementioned lens carrier is provided with a mounting hole for the optical lens to be installed therein. The thrust generated by the coil and the magnet based on the electromagnetic principle drives the lens carrier to move, thereby driving the optical lens to move, so as to realize the camera module's automatic focus, zoom and anti-shake functions.

[0059] Some camera modules also eliminate the lens carrier and directly set the coil or magnet on the outer surface of the lens barrel to reduce the assembly tolerance between the optical lens and the lens carrier. It also eliminates the height determination process in the traditional packaging process, simplifies the assembly process, avoids the problems of poor height determination and dirty glue that are prone to occur in the traditional height determination process, and can also reduce the height of the camera module.

[0060] In the camera module after the lens carrier is eliminated, the coil is usually wound by enameled wire, which shrinks when it is shaped by hot air baking during the winding process, while the magnet is usually attached to the lens barrel with glue. Therefore, whether the coil or the magnet is installed on the lens barrel, it often involves baking and shaping after assembly; and the installation method of the coil or the magnet causes the coil or the magnet to directly apply force to the outer periphery of the lens barrel. However, since the lens barrel of the optical lens is usually made of thermoplastic resins such as polyamide, polycarbonate, etc., the lens barrel is easily deformed due to force and baking after the coil or the magnet is installed, thereby causing the lens mounting hole in the lens barrel to deform, and then causing the peripheral edge of the optical lens to deform due to extrusion, resulting in a larger range of unstable field curvature fluctuations of the optical lens and a larger MTF value, thereby affecting the imaging performance of the optical lens.

[0061] Specifically, the technical concept of the present application is to add a bracket to the lens assembly so that the first bearing part of the bracket supports a part of the driving mechanism. Since the first bearing part of the bracket is located on the side of the boss and there is a gap between the first bearing part of the bracket and the side wall of the boss, the first bearing part of the bracket can isolate the part of the driving mechanism from the outer peripheral surface of the optical lens, thereby preventing the local installation of the driving mechanism from exerting radial extrusion on the lens barrel and deforming the lens mounting hole in the lens barrel, thereby preventing the peripheral edge of the lens from being deformed due to extrusion; and, the mounting part of the bracket is fixed to the first surface of the boss through a connecting structure, so that the mounting part of the bracket applies force to the boss in at least a local area of ​​the periphery of the lens along the optical axis direction, thereby changing the pressure direction of the lens barrel of the optical lens, and avoiding deformation of the lens mounting hole in the lens barrel during the process of the bracket being fixedly connected to the optical lens to the greatest extent, thereby improving the deformation of the peripheral edge of the lens caused by the local installation of the driving mechanism, thereby reducing the unstable range of field curvature fluctuation and MTF value of the optical lens, and improving the imaging performance of the optical lens.

[0062] Based on this, the present application provides a lens assembly, which includes: a shell having an accommodating cavity provided therein, the shell including a base defining at least a partial accommodating cavity; an optical lens constrained inside the accommodating cavity in a manner capable of moving along its optical axis, and the optical lens including a lens barrel and a lens assembled in the lens barrel, wherein the outer peripheral surface of the lens barrel is provided with a boss, the boss having a first surface and a second surface opposite to each other along the optical axis direction, the first surface being adjacent to the light incident end of the optical lens, and the second surface being adjacent to the light emitting end of the optical lens; a bracket including a mounting portion and a first bearing portion, the mounting portion being fixed to the first surface of the boss by a connecting structure, the first bearing portion being located on the side of the boss and having a gap between the first bearing portion and the side wall of the boss; a driving mechanism being provided between the base and the first bearing portion of the bracket to drive the bracket and the optical lens to move along the optical axis.

[0063] Furthermore, with the development of electronic products, the demand for miniaturization and thinness of camera modules is increasing. Taking mobile phone camera modules as an example, as mobile phones become increasingly thinner and lighter, the main requirement for camera modules is thickness. Furthermore, with the increase in screen-to-body ratios for front-facing camera modules, the lens of the front-facing camera module needs to be as close to the edge of the phone screen as possible. As existing front-facing camera modules are typically located in the top center or upper left corner of the phone screen, this limits the spacing parameter range between the lens and one side edge of the camera module, or between the lens and two adjacent edges, requiring the camera module to be designed with extremely narrow edges.

[0064] Based on this, the present application also provides a camera module using the aforementioned lens assembly, wherein the base has a light window for the optical lens to pass through the accommodating cavity, and a color filter is provided at the light window; the base is provided with a photosensitive component located outside the accommodating cavity, and the optical lens is located on the photosensitive path of the photosensitive component.

[0065] It is worth noting that conventional camera modules also include a lens mount, to which the color filter is typically mounted. This arrangement of the lens mount makes the camera module thicker. Therefore, the camera module in this application eliminates the lens mount and mounts the color filter on the base, which not only reduces the number of assembly steps but, more importantly, reduces the thickness of the camera module, making it thinner.

[0066] In addition, the present application also provides a camera module using the above-mentioned lens assembly, wherein the base is provided with a photosensitive component located outside the accommodating cavity, and the optical lens is located on the photosensitive path of the photosensitive component; the base is provided with an annular shoulder, the center hole of the shoulder constitutes the light window, and the shoulder has a first side portion and a second side portion relative to each other, the first side portion is adjacent to the first bearing portion of the bracket, and the second side portion is away from the first bearing portion of the bracket, and the width of the first side portion is greater than the width of the second side portion.

[0067] Due to the existence of the first bearing portion of the bracket, the camera module is wider at the side where the first bearing portion of the bracket is located. The present application arranges the first side portion of the annular shoulder to be adjacent to the first bearing portion of the bracket, and designs the second side portion to be away from the first bearing portion of the bracket, and the width of the first side portion is greater than the width of the second side portion, so that the first side portion of the shoulder can accommodate the photosensitive chip and / or electronic components (such as capacitors, resistors) and / or conductive parts (such as gold wires electrically connecting the chip and the second circuit board) in the photosensitive assembly, thereby fully utilizing the space of the camera module on the side where the first bearing portion of the bracket is located, and allowing the second side portion of the shoulder to occupy a smaller space of the camera module, that is, electronic components (such as capacitors, resistors) and / or conductive parts (such as gold wires electrically connecting the chip and the second circuit board) are not placed on the second side portion of the shoulder, thereby allowing the portion of the camera module corresponding to the second side portion to be designed as an extremely narrow side, thereby further reducing the size of the camera module in the direction perpendicular to the optical axis, making it easier for the camera module to meet the size requirements of a front camera of an electronic device such as a mobile phone or tablet, and thus making the camera module more suitable for use as a front camera module of an electronic device such as a mobile phone or tablet.

[0068] In addition, the present application also provides an electronic device with the aforementioned camera module, including a body, wherein the body is equipped with the aforementioned camera module for acquiring images. There is no restriction on the type of the body of the electronic device. For example, the body of the electronic device can be any electronic device that can be configured with the camera module, such as a smartphone, a tablet computer, a laptop computer, an e-book, a personal digital assistant, a camera, etc. Moreover, when the body of the electronic device is a smartphone or a tablet computer, the camera module can be used as a front camera module and / or a rear camera module.

[0069] Illustrative embodiments

[0070] Example 1

[0071] like Figures 1-7 As shown in FIG. , a first preferred embodiment of the present invention is shown. For ease of description, the width direction of the camera module is defined as the X-axis. The length direction of the camera module is defined as the Y-axis. The thickness direction of the camera module (i.e., the extension direction of the optical axis) is defined as the Z-axis. It is understood that the coordinate system setting of the camera module can be flexibly set according to specific actual needs.

[0072] like Figures 1-3 As shown, the camera module in this embodiment includes a lens assembly 100 and a photosensitive assembly 9. The lens assembly 100 is located on the photosensitive path of the photosensitive assembly 9, so that external light first passes through the lens assembly 100 and is then received by the photosensitive assembly 9 to form an image.

[0073] like Figure 3 As shown, the lens assembly 100 in this embodiment includes a housing, an optical lens 2, a bracket 3 and a driving mechanism. The housing is provided with a housing cavity 10, and the housing includes a base 1 that defines a partial housing cavity 10. The optical lens 2 is capable of moving along its optical axis (i.e., Figure 1 The optical lens 2 is constrained to move in the Z-axis direction (as shown in the figure) within the accommodating chamber 10, and the optical lens 2 includes a lens barrel (not shown in the figure) and a lens (not shown in the figure) assembled in the lens barrel (not shown in the figure). It is understood that a lens mounting hole (not shown in the figure) is provided inside the lens barrel (not shown in the figure), and the lens (not shown in the figure) is mounted in the lens mounting hole (not shown in the figure). The present invention does not limit the number of lenses, and the type and arrangement of the lenses can be reasonably set according to the imaging requirements.

[0074] like Figure 3 、 Figure 6 and Figure 7 As shown, the outer peripheral surface of the lens barrel (not shown in the figure) is provided with a boss 21, and the boss 21 is along the optical axis direction (i.e. Figure 1The bracket 3 has a first surface 21a and a second surface 21b opposite to each other (in the Z-axis direction shown), the first surface 21a is adjacent to the light input end 2a of the optical lens 2, and the second surface 21b is adjacent to the light output end 2b of the optical lens 2. The bracket 3 includes a mounting portion 31 and a first bearing portion 32. The mounting portion 31 is fixed to the first surface 21a of the boss 21 through a connecting structure. The first bearing portion 32 is located on the side of the boss 21 and has a gap X with the side wall of the boss 21. The gap X ranges from 0.2 to 0.3 mm. The driving mechanism is provided between the base 1 and the first bearing portion 32 of the bracket 3 to drive the bracket 3 and the optical lens 2 to move along the optical axis.

[0075] It is worth noting that in the phrase “the first bearing portion 32 is located on the side of the boss 21 and has a gap X with the side wall of the boss 21”, when the boss 21 is a structure in which the side wall includes a curved surface, the “side wall of the boss 21” refers to the corresponding area of ​​the side wall of the boss 21; and when the boss 21 is a structure in which the side surfaces are all flat, the “side wall of the boss 21” refers to the corresponding side wall of the boss 21. In this embodiment, the side wall of the boss 21 is a flat surface, and the “side wall of the boss 21” refers to the side surface of the boss 21 in the Y-axis direction (such as Figure 3 and Figure 6 shown).

[0076] In the lens assembly 100 of this embodiment, a bracket 3 is added so that the first bearing portion 32 of the bracket 3 supports a part of the driving mechanism. Since the first bearing portion 32 of the bracket 3 is located on the side of the boss 21 and has a gap X with the side wall of the boss 21, the first bearing portion 32 of the bracket 3 can isolate the part of the driving mechanism from the outer peripheral surface of the optical lens 2, thereby preventing the installation of the part of the driving mechanism from exerting radial extrusion on the lens barrel (not shown in the figure) and causing the lens mounting hole (not shown in the figure) in the lens barrel (not shown in the figure) to deform, thereby preventing the peripheral edge of the lens (not shown in the figure) from being deformed due to extrusion; and the mounting portion 32 of the bracket 3 is fixed to the side of the lens 21. The connecting structure is fixed to the first surface 21a of the boss 21, so that the mounting portion 31 of the bracket 3 applies force to the boss 21 in at least a partial area of ​​the periphery of the lens (not shown) along the optical axis direction, thereby changing the pressure-bearing direction of the lens barrel (not shown) of the optical lens 2. This can minimize deformation of the lens mounting hole (not shown) in the lens barrel (not shown) during the process of fixed connection between the bracket 3 and the optical lens 2, thereby improving the deformation of the peripheral edge of the lens (not shown) caused by the partial installation of the driving mechanism, thereby reducing the unstable range of the field curvature fluctuation and the MTF value of the optical lens 2, and improving the imaging performance of the optical lens 2.

[0077] The lens barrel (not shown) of the optical lens barrel 2 in the prior art is typically made of a thermoplastic resin such as polyamide or polycarbonate. This makes the lens barrel (not shown) susceptible to deformation due to stress and heat after the drive mechanism is installed. The bracket 3 can be made of a material with better mechanical properties and heat resistance than the lens barrel (not shown), such as metal or liquid crystal polymer. This provides better support performance and is less likely to deform due to stress or heat, thereby providing stronger support for the drive mechanism. The bracket 3 in this embodiment is made of metal, such as stainless steel (SUS316L). While meeting the required support performance and heat resistance, it can also be made thinner. This prevents the stacking of the bracket 3 on the optical lens 2 from significantly affecting the thickness of the camera module, resulting in a camera module that is still thinner than traditional voice coil motors.

[0078] like Figure 3 and Figure 7 As shown, the first bearing portion 32 of the bracket 3 is located from one side edge of the mounting portion 31 toward the position where the second surface 21b of the boss 21 is located ( Figure 1 The first supporting portion 32 can play a major supporting role when the Y-axis direction of the camera module is vertical. In a further design, the bracket 3 also includes a second supporting portion 33, which extends from the end of the first supporting portion 32 toward the direction away from the corresponding side wall of the boss 21 ( Figure 1 The second supporting portion 33 extends along the Z-axis of the camera module, so that the second supporting portion 33 can play a primary supporting role when the Z-axis direction of the camera module is vertical. It is understood that there is no limitation on the angle between the mounting portion 31 and the first supporting portion 32, and the angle between the first supporting portion 32 and the second supporting portion 32, and they can be right angles, obtuse angles, or acute angles. In this embodiment, the angles between the mounting portion 31 and the first supporting portion 32, and the angles between the first supporting portion 32 and the second supporting portion 32 are all 90°.

[0079] The processing process of the bracket 3 is: metal base material → punching → bending → waste cutting → finished product, wherein the formation of the first bearing part 32 and the second bearing part 33 are both carried out in the bending process. The bracket 3 only needs to bend twice to form the overall structure of the bracket 3, which makes the processing of the bracket 3 simpler, and the processing of the bracket 3 does not involve the bending of two parallel components, thereby ensuring that the optical lens 2 has a smaller tilt angle, that is, the tilt of the camera module is smaller. Because there are inevitably processing tolerances in the processing process, it is difficult for the two bent parallel components to maintain a high degree of parallelism. If the bracket 3 is connected to the boss 21 of the optical lens 2 through two components with low parallelism, it is easy to cause the optical axis of the optical lens 2 to be skewed relative to the photosensitive chip 92 of the photosensitive component 9, which in turn causes the optical lens 2 to have a larger tilt angle, that is, the tilt of the camera module is larger.

[0080] The connection structure in this embodiment includes a first rivet hole (not shown), a second rivet hole 313, and a rivet 5. The first rivet hole (not shown) is provided on the first surface 21a of the boss 21, and the second rivet hole 313 is provided on the mounting portion 31 of the bracket 3. The rivet 5 is inserted through the first rivet hole (not shown) and the second rivet hole 313, thereby riveting the mounting portion 31 of the bracket 3 to the boss 21 of the optical lens 2. Considering the risk of dust intrusion into the rivet hole design, which could affect the imaging of the optical lens 2, the connection structure in this embodiment also includes glue (such as shadowless adhesive) filled between the first rivet hole (not shown) and the rivet 5, and between the second rivet hole 313 and the rivet 5. Riveting can be divided into cold riveting and hot riveting. Cold riveting refers to riveting performed with the rivet 5 at room temperature. Hot riveting denatures the connecting parts of the two metals by increasing the temperature, even melting them together. Depending on the material of the rivet 5, the final riveting temperature of the rivet 5 is between 450 and 600°C. In this embodiment, the boss 21 of the optical lens 2 and the mounting portion 31 of the bracket 3 are riveted together by a cold riveting process, thereby avoiding the overheating of the rivet 5 during the assembly of the optical lens 2 and the bracket 3, thereby avoiding the overheating environment caused by the overheating of the rivet 5, which causes the boss 21 of the optical lens 2 to melt and deform, and thus it is not easy to cause the lens mounting hole (not marked in the figure) inside the lens barrel (not marked in the figure) to deform, thereby improving the optical performance of the optical lens 2.

[0081] like Figure 6 and Figure 7 As shown, the connection structure has at least three groups, and the three groups of connection structures are not on the same straight line. The connection structure is used as the connection point between the optical lens 2 and the bracket 3. Since the three connection points can define a plane, the mounting portion 31 of the bracket 3 is suitable for being installed flatly on the boss 21 of the optical lens 2. In this embodiment, the outer contour of the boss 21 is rectangular, and the connection structure has four groups, which are respectively located at the four corners of the boss 21. The specific structural design and quantity design of the connection structure can make the connection between the optical lens 2 and the bracket 3 more secure and more reliable, so that when the electronic device equipped with the camera module falls, the connection structure is not easy to fail, so that the anti-fall and anti-fall performance of the camera module is better. The distribution design of the connection structure can make the mounting portion 31 of the bracket 3 more flat, so that the optical lens 2 is not easy to tilt relative to the photosensitive component 9, and can reduce the tilt angle of the optical lens 2 (that is, the tilt is smaller), and also make the force on the optical lens 2 more balanced.

[0082] Since the action force is inevitably exerted on the boss 21 of the optical lens 2 during the riveting process, the connecting structure in the embodiment is adjacent to the sidewall of the boss 21. Herein, the connecting structure adjacent to the sidewall of the boss 21 means that the distance between the connecting structure and the sidewall of the boss 21 is less than the distance between the connecting structure and the corresponding part of the edge of the lens mounting hole (not shown in the figure) of the lens barrel (not shown in the figure). Since the connecting structure is far away from the lens mounting hole (not shown in the figure) of the lens barrel (not shown in the figure), the action force exerted on the boss 21 of the optical lens 2 by the rivet 5 is not easy to cause the deformation of the lens mounting hole (not shown in the figure) of the lens barrel (not shown in the figure), thereby reducing the influence of the riveting process on the imaging performance of the optical lens 2.

[0083] As shown in Figure 6 , since the mounting part 31 of the bracket 3 inevitably abuts against the first surface 21a of the boss 21, the mounting part 31 of the bracket 3 exerts extrusion on the boss 21 towards the second surface 21b. In the embodiment, the mounting part 31 of the bracket 3 is annular, which can increase the contact area between the mounting part 31 of the bracket 3 and the first surface 21a of the boss 21, thereby reducing the pressure intensity borne by the boss 21, so that the connection between the bracket 3 and the optical lens 2 is not easy to cause the deformation of the lens mounting hole (not shown in the figure) of the lens barrel (not shown in the figure), and further reduces the influence of the mounting part 31 of the bracket 3 on the imaging performance of the optical lens 2. Since the outer contour of the boss 21 is rectangular, the mounting part 31 of the bracket 3 is adaptively designed to be a rectangular ring. Further design, the mounting part 31 of the bracket 3 covers 60-70% of the area of the first surface 21a, so that the contact area between the bracket 3 and the boss 21 is large enough, and the sensitivity of the optical lens 2 to move is not affected by the bracket 3.

[0084] As shown in Figure 3 and Figure 5 , the shell further includes a cover 7 covering the outside of the base 1, the cover 7 and the base 1 jointly form the accommodating cavity 10, and the cover 7 is provided with a through hole 71 corresponding to the optical lens 2. It can be understood that the optical lens 2 can participate in the assembly process of the camera module 1 before the cover 7, that is, in the embodiment of the present application, after the cover 7 is assembled on the outside of the base 1, the optical lens 2 does not need to be installed in the accommodating cavity 10 of the base 1 through the through hole 71, therefore, the aperture of the through hole 71 of the cover 7 can be reduced to be smaller than the size of the light emitting end 2b of the optical lens 2.

[0085] As shown in Figure 4 , Figure 6 and Figure 7As shown, the first surface 21a of the boss 21 is provided with four first stops 211 protruding from the bracket 3. Each of the four side surfaces of the boss 21 has a first stop 211. When the optical lens 2 moves upward along the Z axis, each first stop 211 contacts the inner surface of the cover 7, thereby limiting the range of upward movement of the optical lens 2 along the Z axis. Three of the first stops 211 are located within the center hole 311 of the mounting portion 31 of the bracket 3. The mounting portion 31 of the bracket 3 is provided with a notch 312 on the side of the Y axis facing away from the first bearing portion 32, and one of the first stops 211 is located within the notch 312.

[0086] In this embodiment, by locating three of the first stop portions 211 within the center hole 311 of the mounting portion 31 of the bracket 3, the mounting portion 31 of the bracket 3 can be made closer to the side wall of the boss 21 as a whole, so that the extrusion exerted by the bracket 3 on the boss 21 is farther away from the corresponding part of the edge of the lens mounting hole (not marked in the figure), thereby making the lens mounting hole (not marked in the figure) less likely to deform. The formation of the notch 312 is carried out in the stamping process, which can release stress for subsequent processing steps such as bending and waste cutting, thereby avoiding deformation of the bracket 3 and causing the overall flatness of the mounting portion 31 of the bracket 3 to decrease, making the overall flatness of the mounting portion 31 of the bracket 3 higher, so that the extrusion force of the bracket 3 on the boss 21 is more balanced, and the optical lens 2 is not easy to tilt, and the tilt of the camera module is smaller; the position design of the notch 312 can not only avoid the first stop portion 211 on the corresponding side, but also reduce the space occupied on the corresponding side on the Y-axis, and can allow the camera module to design the corresponding side on the Y-axis as an extremely narrow side, shorten the size of the camera module on the Y-axis, and facilitate the miniaturization of the camera module, so that the camera module is suitable as a front camera module.

[0087] like Figure 7 As shown, the base 1 is provided with four second stop portions 13 distributed at the four corners of the base 1 , so that when the optical lens 2 moves downward along the Z axis, the second stop portions 13 can limit the downward movement of the optical lens 2 along the Z axis.

[0088] like Figure 4 、 Figure 6 and Figure 7As shown, the driving mechanism includes a coil 41 and a magnetic element 42 arranged opposite to each other. There are two magnetic elements 42, both of which are magnets. The magnetic element 42 is mounted on the first bearing part 32 and the second bearing part 33 of the bracket 3; specifically, the magnetic element 42 is pasted on the first bearing part 32 and the second bearing part 33 of the bracket 3. Due to the excellent pressure-bearing and high-temperature resistance of the bracket 3, the mounting of the magnetic element 42 on the bracket 3 is not likely to cause deformation of the bracket 3, and the magnetic element 42 can also be attracted to the bracket 3 due to magnetic attraction, making the mounting of the magnetic element 42 more secure, thereby improving the anti-fall and anti-fall performance of the camera module. A first circuit board 6 is provided on the side of the base 1, and the coil 41 is electrically connected to the first circuit board 6 to supply power to the coil 41. The coil 41 is a hollow planar coil and is mounted on the first circuit board 6. The coil 41 and the magnetic element 42 are arranged opposite to each other. In this way, after the coil 41 is energized, the electromagnetic force generated by the coil 41 and the magnetic element 42 will drive the magnetic element 42 to drive the bracket 3 to move along the optical axis, and then drive the optical lens 2 to move along the optical axis.

[0089] like Figure 4 、 Figure 6 and Figure 7 As shown, a guide mechanism is provided between the first supporting portion 32 of the bracket 3 and the base 1 to guide the movement of the optical lens 2 along its optical axis. Two sets of guide mechanisms are provided, spaced apart in a direction substantially perpendicular to the optical axis; in this embodiment, the two sets are located on either side of the magnetic element 42 in the X-axis direction. Each set of guide mechanisms includes a guide portion 121 and a guide slot 101 disposed opposite each other, and a guide member 8 clamped between the guide portion 121 and the corresponding guide slot 101. The base 1 has a rectangular outer profile, with support columns 12 provided at two corners. Each support column 12 extends along the optical axis (i.e., the Z-axis direction), and each support column 12 has a guide portion 121 formed on its surface on the Y-axis side closest to the optical lens 2. The guide portion 121 is a U-shaped groove. The first supporting portion 32 is an elongated strip extending along the X-axis, with a U-shaped guide slot 101 stamped into each end of the first supporting portion 32. The guide member 8 is a ball, and there are two balls in each guide mechanism.

[0090] It is worth noting that in the traditional ball guide mechanism, the guide part and the guide groove are made of plastic, while the balls are usually ceramic. In this way, the guide part and the inner wall of the guide groove will cause chips due to friction during the rotation of the guide member 8. These chips can easily contaminate the lens of the optical lens 2 and the photosensitive component 9, thereby affecting the imaging quality of the optical lens 2 and shortening the service life of the camera module. At the same time, pits are easily formed on the inner wall of the guide part and the guide groove, resulting in an increase in the ball installation gap between the guide part and the guide groove, making it easy for at least two balls to be misaligned in the X-axis direction or the Y-axis direction. Powder chips can also easily enter between the balls, causing the rotation of the balls to be stuck, and then causing the movement of the optical lens 2 to be easily stuck. In this embodiment, by directly setting the guide groove 101 on the first bearing portion 32 of the bracket 3, the guide member 8 will not generate chips when rubbing against the inner wall of the guide groove 101, which can reduce the generation of chips during the use of the guide mechanism, greatly reducing the probability of the optical lens 2 and the photosensitive component 9 being contaminated by dust during the use of the camera module, thereby not easily affecting the imaging quality of the optical lens 2, and can extend the service life of the camera module. In addition, the movement of the optical lens 2 is smoother. In addition, the guide groove 101 is formed by a stamping process, which is simple to process and not easy to accumulate processing tolerances, thereby avoiding the skew of the bracket 3 caused by processing tolerances, and further making it difficult for the optical lens 2 to tilt relative to the photosensitive component 9.

[0091] In this embodiment, the first circuit board 6 is a flexible printed circuit (FPC), and is secured to two support posts 12 via magnetic members 61. Specifically, each support post 12 has a notched corner 122 on the side facing away from the optical lens 2 along the Y-axis. Due to the magnetic attraction between the magnetic member 61 and the magnetic element 42, the magnetic member 61 is attracted to the side of the first circuit board 6 facing away from the optical lens 2 along the Y-axis. This also causes the first circuit board 6 to be pressed against the corresponding notched corners 122 by the magnetic member 61, thereby securing the first circuit board 6 to the base 1. In this embodiment, the magnetic member 61 is made of a magnetically conductive material, such as stainless steel (SUS430), thereby providing a certain degree of magnetic conductivity, strengthening the magnetic field, and increasing the magnetic attraction between the magnetic member 61 and the magnetic element 42.

[0092] like Figure 3 and Figure 7 As shown, the base 1 is provided with an annular shoulder 11, the central hole of which forms a light window 111, which allows light from the optical lens 2 to pass through the accommodating cavity 10. A color filter 112 is mounted on the shoulder surface of the shoulder 11, located at the light window 111. This eliminates the need for a lens holder, allowing the color filter 94 to be directly mounted on the base 1. This not only reduces the number of assembly steps, but more importantly, the elimination of the lens holder reduces the thickness of the camera module.

[0093] like Figure 3 and Figure 7 As shown, the photosensitive assembly 9 includes a second circuit board 91, a photosensitive chip 92 and electronic components 93. The second circuit board 91 is attached to the base 1 and is located outside the accommodating cavity 10, and the first circuit board 6 is provided with solder pins (not shown in the figure) electrically connected to the second circuit board 91, so that the second circuit board 91 is electrically connected to the coil 41. The photosensitive chip 92 is mounted on the second circuit board 91 and electrically connected to the second circuit board 91 (for example, the photosensitive chip 92 is electrically connected to the second circuit board 91 by gold wire), so that the second circuit board 91 provides the photosensitive chip 92 with the control circuit and electrical energy required for operation. At least the photosensitive area of ​​the photosensitive chip 92 is opposite to the light window 111, so that the photosensitive chip 92 can receive light from the optical lens 2. The electronic components 93 refer to capacitors and resistors.

[0094] like Figure 3 and Figure 7 As shown, the shoulder 11 of the base 1 has a first side portion 11a and a second side portion 11b opposite to each other along the Y-axis direction, the first side portion 11a is adjacent to the first bearing portion 32 of the bracket 3, and the second side portion 11b is away from the first bearing portion 32 of the bracket 3, and the width of the first side portion 11a is greater than the width of the second side portion 11b, so that the first side portion 11a of the shoulder 11 can accommodate the photosensitive chip 92 and / or electronic components 93 (such as capacitors, resistors) and / or conductive parts (such as gold wires electrically connecting the chip and the second circuit board) in the photosensitive component 9, making full use of the camera module at the first bearing portion 32 of the bracket 3. The space on the side of the shoulder 11 is utilized, and the second side portion 11b of the shoulder 11 is enabled to occupy a smaller space of the camera module, that is, electronic components 93 (such as capacitors, resistors) and / or conductive parts (such as gold wires electrically connecting the chip and the second circuit board) are not placed on the second side portion 11b, thereby allowing the portion of the camera module corresponding to the second side portion 11b to be designed as an extremely narrow edge, thereby further reducing the size of the camera module in the Y-axis direction, making it easier for the camera module to meet the size requirements of a front camera of an electronic device such as a mobile phone or tablet, and thus making the camera module more suitable for use as a front camera module of an electronic device such as a mobile phone or tablet.

[0095] The electronic device in this embodiment is a mobile phone, which includes a main body, on which the aforementioned camera module is installed, and the camera module serves as a front camera module, that is, the light incident end 2a of the optical lens 2 in the camera module faces the front side of the electronic device.

[0096] Example 2

[0097] like Figure 8 FIG. 2 shows a second preferred embodiment of the present invention.

[0098] The difference between this embodiment and embodiment 1 is that the base 1 has a recessed portion 14 recessed toward the interior of the accommodating cavity 10. The recessed portion 14 is located between the side wall of the base 1 corresponding to the first bearing portion 32 and the first side portion 11a. The recessed portion 14 of the base 1 is located below the coil 41, so that the recessed portion 14 can also accommodate the electronic component 93. The design of the recessed portion 14 can also reduce the Y-axis size of the camera module. Since the recessed portion 14 avoids the position of the magnetic element 42, it can also reduce the thickness of the camera module (i.e., the size in the Z-axis direction). However, because the recessed portion 14 occupies the installation space of the coil 41, the number of turns of the coil 41 is limited, which risks affecting the driving force for the movement of the optical lens 2.

[0099] Example 3

[0100] like Figure 9 and Figure 10 FIG. 1 is a third preferred embodiment of the present invention.

[0101] This embodiment differs from Example 1 in that the boss 21 is provided with a protrusion 212 on one side of the first support portion 32 of the bracket 3 along the Y-axis. There are two protrusions 212, spaced apart along the X-axis on the sidewall of the boss 21. Each guide groove 101 is formed on a corresponding protrusion 212. Compared to directly forming the guide groove 101 on the first support portion 32 of the bracket 3, the boss 21 is injection molded, resulting in a higher precision of the guide groove 101 formed by the boss 21. A baffle 213 is provided in the middle of each guide groove 101. Each baffle 213 divides the corresponding guide groove 101 into two sub-grooves, each of which is provided with a guide member 8. This ensures that each guide member 8 rolls within the corresponding sub-groove, preventing the two balls 8 in each guide groove 101 from being concentrated at one end of the guide groove 101 and causing the bracket 3 to tilt, thereby minimizing the tilt of the optical lens 2.

[0102] like Figure 10 As shown, in this embodiment, the first bearing portion 32 of the bracket 3 has a first side and a second side that are opposite each other in the X-axis direction, and third bearing portions 34 are respectively provided on the first side and the second side of the first bearing portion 32 of the bracket 3. The third bearing portions 34 primarily support the magnetic element 42 when the X-axis direction of the camera module is vertical. It will be understood that because the two third bearing portions 34 are not directly connected to the boss 21, even if the parallelism of the two third bearing portions 34 is low due to unavoidable machining tolerances, it is unlikely to cause the bracket 3 to tilt, that is, it is unlikely to increase the tilt of the camera module.

[0103] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended to be illustrative only and are not intended to limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles.

Claims

1. A lens assembly (100), characterized in that: include: A housing having an accommodating cavity (10) therein, wherein the housing comprises a base (1) defining at least a portion of the accommodating cavity (10); An optical lens (2) is constrained inside a housing cavity (10) in a manner capable of moving along its optical axis, and the optical lens (2) comprises a lens barrel and a lens assembled in the lens barrel, wherein a boss (21) is provided on the outer peripheral surface of the lens barrel, and the boss (21) has a first surface (21a) and a second surface (21b) opposite to each other along the optical axis direction, the first surface (21a) is adjacent to a light input end (2a) of the optical lens (2), and the second surface (21b) is adjacent to a light output end (2b) of the optical lens (2); The bracket (3) includes a mounting portion (31) and a first bearing portion (32), wherein the mounting portion (31) is fixed to the first surface (21a) of the boss (21) through a connecting structure, the first bearing portion (32) is located on the side of the boss (21) and has a gap (X) between it and the side wall of the boss (21), and the first bearing portion (32) extends from a side edge of the mounting portion (31) toward the direction where the second surface (21b) of the boss (21) is located; A driving mechanism is provided between the base (1) and the first bearing portion (32) of the bracket (3) to drive the bracket (3) and the optical lens (2) to move along the optical axis; The mounting portion (31) of the bracket (3) is annular and has a central hole (311), and the first surface (21a) of the boss (21) is provided with at least one first stop portion (211), wherein the at least one first stop portion (211) is located in the central hole (311) of the mounting portion (31) of the bracket (3) and protrudes from the bracket (3); The mounting portion (31) of the bracket (3) is provided with a notch (312) on a side facing away from the first bearing portion (32), wherein one of the first stop portions (211) is located in the notch (312).

2. The lens assembly (100) according to claim 1, characterized in that The bracket (3) is made of metal.

3. The lens assembly (100) according to claim 2, characterized in that in, A guide mechanism is provided between the first bearing portion (32) of the bracket (3) and / or the side wall of the boss (21) corresponding to the first bearing portion (32) of the bracket (3) and the base (1).

4. The lens assembly (100) according to claim 3, characterized in that in, The guide mechanism comprises a guide portion (121) and a guide groove (101) arranged opposite to each other, and a guide member (8) clamped between the guide portion (121) and the guide groove (101); the base (1) is provided with a support column (12) extending along the optical axis direction, and the guide portion (121) is provided on the support column (12); and the guide groove (101) is provided on the first bearing portion (32) of the bracket (3).

5. The lens assembly (100) according to claim 3, characterized in that: in, The guide mechanism comprises a guide portion (121) and a guide groove (101) arranged opposite to each other, and a guide member (8) clamped between the guide portion (121) and the guide groove (101); the base (1) is provided with a support column (12) extending along the optical axis direction, and the guide portion (121) is provided on the support column (12); the guide groove (101) is provided on a side wall of the boss (21) corresponding to the first bearing portion (32) of the bracket (3).

6. The lens assembly (100) according to claim 1, characterized in that in, There are at least three groups of connection structures, and the three groups of connection structures are not on the same straight line, so as to enable the mounting portion (31) of the bracket (3) to be evenly mounted on the boss (21) of the optical lens (2).

7. The lens assembly (100) according to claim 1, characterized in that in, The boss (21) of the optical lens (2) and the mounting portion (31) of the bracket (3) are riveted together by a cold riveting process.

8. The lens assembly (100) according to claim 1, characterized in that in, The connecting structure is adjacent to the side wall of the boss (21).

9. The lens assembly (100) according to claim 1, characterized in that in, The mounting portion (31) of the bracket (3) covers 60-70% of the area of ​​the first surface (21a).

10. The lens assembly (100) according to any one of claims 1 to 9, characterized in that: in, The base (1) has a light window (111) for light from the optical lens (2) to pass through the accommodating cavity (10), and a color filter (112) is provided at the light window (111).

11. The lens assembly (100) according to claim 10, characterized in that The driving mechanism comprises a coil (41) and a magnetic element (42) arranged opposite to each other, the magnetic element (42) being mounted on a first bearing portion (32) of a bracket (3), a first circuit board (6) being provided on a side of the base (1), and the coil (41) being electrically connected to the first circuit board (6).

12. A camera module, characterized in that: A lens assembly (100) as claimed in any one of claims 1 to 11 is used, wherein the base (1) is provided with a photosensitive component (9) located outside the accommodating cavity (10), and the optical lens (2) is located on the photosensitive path of the photosensitive component (9).

13. A camera module, characterized in that: The lens assembly (100) according to claim 10 or 11 is applied, wherein the base (1) is provided with a photosensitive component (9) located outside the accommodating cavity (10), and the optical lens (2) is located on the photosensitive path of the photosensitive component (9); The base (1) is provided with an annular shoulder (11), the central hole of the shoulder (11) constitutes the light window (111), and the shoulder (11) has a first side portion (11a) and a second side portion (11b) opposite to each other, the first side portion (11a) is adjacent to the first bearing portion (32) of the bracket (3), and the second side portion (11b) is away from the first bearing portion (32) of the bracket (3), and the width of the first side portion (11a) is greater than the width of the second side portion (11b).

14. A camera module, characterized in that: The lens assembly (100) according to claim 11 is applied, wherein the base (1) is provided with a photosensitive component (9) located outside the accommodating cavity (10), and the optical lens (2) is located on the photosensitive path of the photosensitive component (9); The base (1) is provided with an annular shoulder (11), the central hole of the shoulder (11) forming the light window (111), and the shoulder (11) has a first side portion (11a) and a second side portion (11b) opposite to each other, the first side portion (11a) being adjacent to the first bearing portion (32) of the bracket (3), and the second side portion (11b) being away from the first bearing portion (32) of the bracket (3), and the width of the first side portion (11a) being greater than the width of the second side portion (11b); The base (1) is recessed toward the interior of the accommodating cavity (10) to form a recess (14), the recess (14) being located between a side wall corresponding to the first bearing portion (32) on the base (1) and the first side portion (11a), and the recess (14) being located below the coil (41).

15. An electronic device, characterized in that It comprises a main body, on which the camera module as claimed in claim 12, 13 or 14 is installed.

Images