Optical zoom motor, camera device and mobile terminal

Abstract

This invention provides an optical zoom motor, a camera device, and a mobile terminal. The optical zoom motor includes: a housing having a first opening for avoiding a lens; a base disposed below the housing and forming an accommodating space therebetween; a frame assembly having a second opening for avoiding the lens; a bracket having a third opening for avoiding the lens; a lens support disposed inside the bracket; a lateral spring connecting the frame assembly to the bracket via the lateral spring, enabling the bracket to move the lens support in a direction perpendicular to the lens axis; multiple lateral coils; multiple driving magnets; and a driving coil wound around the lens support and situated within a magnetic field formed by the driving magnets. This invention solves the problem of poor performance in existing optical zoom motors.

Description

Technical Field

[0001] This invention relates to the field of periscope focusing devices, and more specifically, to an optical zoom motor, a camera device, and a mobile terminal. Background Technology

[0002] In recent years, with the development of market demand, mobile phone cameras have required high resolution, large aperture, and ultra-thin design to adapt to new development trends.

[0003] Existing autofocus devices all utilize a voice coil motor combined with the lens, image sensor, and circuit board to achieve their combined height. However, due to the increasing pixel count in mobile phones and the growing demand for thinner products, existing technology has reached a bottleneck in practical applications. Large aperture and high-pixel lenses have a relatively high overall optical height, making it impossible for existing combined product heights to meet the requirements of ultra-thin mobile phone bodies. Furthermore, assembly misalignment of the image sensor can cause the light source center and the image sensor center to not align, affecting the image quality and resulting in suboptimal final image output.

[0004] Due to the thickness limitations of mobile phones, conventional vertically positioned (facing outwards on the phone's surface) mobile phone cameras have relatively small focal lengths and limited optical zoom capabilities. The periscope camera of this invention differs from the traditional vertical lens arrangement, being horizontally arranged within the phone and incorporating optical conversion components. Composed of an optical zoom motor, lens assembly, and prisms, it uses a special optical prism to refract light into the lens assembly, achieving image formation and enabling higher optical zoom magnification, allowing the lens to clearly capture distant objects. The periscope structure shows promising application prospects in smartphones.

[0005] Here, the present invention aims to design an optical zoom motor with periscope function, coupled with the functional assistance of a prism, to ultimately achieve the goal of placing the motor parallel to the mobile phone, thereby greatly reducing the height of the mobile phone and achieving the effect of ultra-thin body and high-quality optical zoom imaging. Summary of the Invention

[0006] The main objective of this invention is to provide an optical zoom motor, a camera device, and a mobile terminal to solve the problem of poor performance of optical zoom motors in the prior art.

[0007] To achieve the above objectives, according to one aspect of the present invention, an optical zoom motor is provided, comprising: a housing having a first opening for avoiding a lens; a base disposed below the housing and forming an accommodating space therebetween; a frame assembly disposed within the accommodating space and having a second opening for avoiding a lens; a bracket disposed inside the frame assembly and having a third opening for avoiding a lens; a lens support disposed inside the bracket and connected to the lens support via an axial spring, such that the lens support can carry a lens relative to the bracket in the axial direction of the lens; a lateral spring connected to the bracket via the lateral spring, such that the bracket can drive the lens support to move in a direction perpendicular to the axial direction of the lens; a plurality of lateral coils providing power to the movement of the bracket; a plurality of driving magnets corresponding to the plurality of lateral coils; and a driving coil wound on the lens support and situated within a magnetic field formed by the driving magnets.

[0008] Furthermore, the housing includes a top wall and circumferential side walls, the top wall being disposed opposite to the base and connected to the base via the circumferential side walls, and a first opening on one side of the circumferential side wall; and / or a set of oppositely disposed side walls of the frame assembly having a second opening; and / or a set of oppositely disposed side walls of the bracket having a third opening, and the planes containing the first opening, the second opening, and the third opening are parallel to each other; and / or the lens opening of the lens support faces the first opening.

[0009] Furthermore, at least one lateral coil is provided on each of a set of oppositely arranged sidewalls of the frame assembly, and the sidewall where the lateral coil is located is adjacent to the sidewall where the second opening is located; and / or multiple driving magnets are provided on the bracket.

[0010] Furthermore, the frame assembly includes: a frame, with a second opening disposed on the frame; a flexible PCB board, with lateral coils disposed on the flexible PCB board, and at least a portion of the flexible PCB board overlapping the frame.

[0011] Furthermore, the frame has multiple clearance openings at the positions corresponding to the multiple driving magnets; and / or the side of the frame facing the top wall of the housing has an overlap groove, and at least a portion of the flexible PCB board is disposed in the overlap groove; and / or the outer surface of the side wall of the frame facing the driving magnet has a positioning groove, and at least a portion of the flexible PCB board is disposed in the positioning groove.

[0012] Furthermore, the sidewall where the lateral coil is located is perpendicular to the top wall of the housing.

[0013] Furthermore, the base has a positioning protrusion at the corner that mates with the frame; and / or at least a portion of the lateral coil is disposed inside the flexible PCB board; and / or the frame has a positioning protrusion at the corner of the side facing the top wall of the housing.

[0014] Furthermore, the support has a receiving opening on the side wall corresponding to the driving magnet to accommodate the driving magnet.

[0015] Furthermore, the lens support has a first limiting protrusion extending radially on the side facing the first opening, and the bracket is provided with a limiting groove that cooperates with the first limiting protrusion.

[0016] Furthermore, the lens support has a second limiting protrusion on the side away from the first opening, and at least a portion of the second limiting protrusion extends out of the bracket in a direction away from the first opening.

[0017] Furthermore, there are two lateral coils and two driving magnets. The optical zoom motor also includes: two sets of lateral springs, with one set of lateral springs between each lateral coil and each driving magnet; and two sets of axial springs, with one set of axial springs located at the end of the lens support near the first opening and the other set of axial springs located at the end of the lens support away from the first opening.

[0018] Furthermore, the optical zoom motor also includes: a first PCB board, which is disposed on the side of the base facing the frame assembly, and is provided with a first capacitor, a first position sensor, a first pin group and a second pin group, wherein the first position sensor is electrically connected to the first pin group, and the flexible PCB board of the frame assembly is electrically connected to the position sensor so that the lateral coil is electrically connected to the position sensor; and a second PCB board, which is disposed on the side of the bracket facing the base and has a receiving groove, and is provided with a second capacitor and a second position sensor.

[0019] Furthermore, at least a portion of the first capacitor and at least a portion of the first position sensor extend into the frame assembly; and / or at least a portion of the second capacitor and at least a portion of the second position sensor extend into the bracket.

[0020] Furthermore, the optical zoom motor also includes: a first Hall magnet, which is disposed on the side of the bracket facing the base, and a first position sensor senses the first Hall magnet; and a second Hall magnet, which is disposed on the side of the lens support near the base, and a second position sensor senses the second Hall magnet.

[0021] Furthermore, the optical zoom motor also includes: a first connecting component, at least a portion of which is disposed inside the frame of the frame assembly, and one end of the first connecting component is electrically connected to a second end pin group; and a second connecting component, which is disposed on the bracket, and one end of the second connecting component is electrically connected to the other end of the first connecting component via a set of lateral springs, and the other end of the axial springs is electrically connected to a second PCB board.

[0022] Furthermore, a third pin group is also provided on the second PCB board, the second connecting component is electrically connected to the third pin group, and the second position sensor is electrically connected to the third pin group.

[0023] Furthermore, the second PCB board also includes: a fourth pin group, which is electrically connected to the second position sensor; and a third connecting component, through which an axial spring near the first opening is electrically connected to the fourth pin group.

[0024] Furthermore, the first connecting component and the second connecting component each include four connecting bodies, the second end group and the third end group each include four conductive ends, and the lateral spring includes four sub-springs. The two ends of the four connecting bodies of the first connecting component are respectively connected to the four conductive ends of the second end group and the four sub-springs of the lateral spring, and the two ends of the four connecting bodies of the second connecting component are respectively connected to the four conductive ends of the third end group and the four sub-springs of the lateral spring.

[0025] Furthermore, the four conductive pins of the third pin group are located in a straight line.

[0026] Furthermore, the fourth end pin group includes a first connecting end pin and a second connecting end pin, the axial spring includes a first connecting spring and a second connecting spring, the third connecting assembly includes a first connecting portion and a second connecting portion, the first connecting end pin and the first connecting spring are electrically connected through the first connecting portion, and the second connecting end pin and the second connecting spring are electrically connected through the second connecting portion.

[0027] Furthermore, the first connecting pin and the second connecting pin are located on the same straight line; and / or the first connecting pin and the second connecting pin are located on both sides of the third pin group, respectively.

[0028] Furthermore, the first and second connecting springs are respectively provided with solder holes, and the first and second connecting springs are respectively welded to the winding post of the lens support through the solder holes to realize the electrical connection between the drive coil and the fourth terminal group.

[0029] Furthermore, the first connecting spring and the second connecting spring of the axial spring away from the first opening have the same structure; and / or the two ends of the first connecting spring of the axial spring near the first opening correspond to the same side of the bracket, the second connecting spring of the axial spring near the first opening has an inner structure and an outer structure, the bracket is connected to the outer structure, the lens support is connected to the inner structure, and at least a portion of the inner structure and the outer structure are arranged opposite to each other.

[0030] According to another aspect of the present invention, a camera device is provided, including the aforementioned optical zoom motor.

[0031] According to another aspect of the present invention, a mobile terminal is provided, including the above-described camera device.

[0032] Applying the technical solution of this invention, the optical zoom motor of this application includes a housing, a base, a frame assembly, a bracket, a lens support, lateral springs, multiple lateral coils, multiple driving magnets, and a driving coil. The housing has a first opening for avoiding the lens; the base is disposed below the housing and forms an accommodating space with the housing; the frame assembly is disposed within the accommodating space and has a second opening for avoiding the lens; the bracket is disposed inside the frame assembly and has a third opening for avoiding the lens; the lens support is disposed inside the bracket and is connected to the lens support via an axial spring, so that the lens support can carry the lens to move relative to the bracket in the axial direction of the lens; the frame assembly is connected to the bracket via lateral springs, so that the bracket can drive the lens support to move in a direction perpendicular to the axial direction of the lens; the lateral coils provide power for the movement of the bracket; multiple driving magnets are arranged corresponding to multiple lateral coils; the driving coils are wound on the lens support and are located within the magnetic field formed by the driving magnets.

[0033] When using the optical zoom motor with the above-described structure, the interaction between the driving magnet and the driving coil allows the lens support to move relative to the bracket, thereby achieving the focusing function of the optical zoom motor. Furthermore, since a lateral coil is also provided, the interaction between the lateral coil and the driving magnet allows the lens support to move relative to the frame assembly along with the bracket, effectively ensuring the image stabilization performance of the optical zoom motor. Therefore, by using the optical zoom motor of this application, sharper images can be ensured, thus effectively solving the problem of poor performance of existing optical zoom motors. Attached Figure Description

[0034] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0035] Figure 1An exploded view of an optical zoom motor according to a specific embodiment of the present invention is shown;

[0036] Figure 2 It shows Figure 1 A schematic diagram of the structure of the first PCB board of the optical zoom motor in the image;

[0037] Figure 3 It shows Figure 1 A schematic diagram of the structure of the second PCB board of the optical zoom motor in the image;

[0038] Figure 4 This paper shows a schematic diagram of the positional relationship between the bracket of the optical zoom motor and the second PCB board in this application;

[0039] Figure 5 This paper shows a schematic diagram of the positional relationship between the bracket of the optical zoom motor and the first Hall magnet in this application;

[0040] Figure 6 This paper shows a schematic diagram of the positional relationship between the lens support of the optical zoom motor and the second Hall magnet in this application;

[0041] Figure 7 This diagram illustrates the positional relationship between the base of the optical zoom motor and the first PCB board in this application.

[0042] Figure 8 This diagram illustrates the positional relationship between the frame assembly and the base of the optical zoom motor in this application.

[0043] Figure 9 This invention illustrates the positional relationship between the bracket of the optical zoom motor and the lens support in this application.

[0044] Figure 10 This invention illustrates the positional relationship between the lens support and the axial spring of the optical zoom motor.

[0045] Figure 11 A schematic diagram showing the positional relationship between the lens support, bracket, and axial spring of the optical zoom motor in this application is shown.

[0046] The above figures include the following reference numerals:

[0047] 10. Outer shell; 11. First opening; 12. Top wall; 13. Circumferential side wall; 20. Base; 21. Positioning protrusion; 30. Frame assembly; 31. Second opening; 32. Frame; 321. Clearance opening; 322. Overlap groove; 323. Positioning groove; 324. Positioning protrusion; 33. Flexible PCB board; 34. First connecting assembly; 40. Bracket; 41. Third opening; 42. Receiving opening; 43. Limiting groove; 44. Second connecting assembly; 50. Lens support; 51. First limiting protrusion; 52. Second limiting protrusion; 53. Winding post; 60. Axial spring; 61. First connecting spring; 62. Second connecting spring; 63. Solder Hole; 70, Lateral spring; 71, Sub-spring; 80, Lateral coil; 81, Driving magnet; 82, Driving coil; 83, Lens; 90, First PCB board; 91, First capacitor; 92, First position sensor; 93, First pin group; 94, Second pin group; 100, Second PCB board; 110, Second capacitor; 120, Second position sensor; 130, Third pin group; 140, Fourth pin group; 150, Third connecting component; 160, First connecting pin; 170, Second connecting pin; 180, First connecting part; 190, Second connecting part; 200, First Hall magnet; 210, Second Hall magnet; 300, Connecting body. Detailed Implementation

[0048] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0049] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0050] In this invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0051] To address the poor performance of optical zoom motors in the prior art, this application provides an optical zoom motor, a camera device, and a mobile terminal.

[0052] The mobile terminal includes a camera device. The camera device includes the optical zoom motor described below.

[0053] It should be noted that the camera device in this application includes, but is not limited to, smartphones with camera functions. Furthermore, when the optical zoom motor of this application is used in a smartphone, it not only improves the performance of the smartphone's camera module but also effectively reduces the overall thickness of the smartphone and effectively solves the problem of the rear camera protruding from the back cover of the smartphone.

[0054] It should also be noted that, in addition to its application in the field of mobile phones, the camera device in this application can also be applied in the field of miniature imaging photography, such as tablets, computers, and automotive electronics.

[0055] like Figures 1 to 11 As shown, the optical zoom motor in this application includes a housing 10, a base 20, a frame assembly 30, a bracket 40, a lens support 50, a lateral spring 70, a plurality of lateral coils 80, a plurality of drive magnets 81, and a drive coil 82. The housing 10 has a first opening 11 for avoiding the lens 83; the base 20 is disposed below the housing 10 and forms an accommodating space with the housing 10; the frame assembly 30 is disposed within the accommodating space and has a second opening 31 for avoiding the lens 83; the bracket 40 is disposed inside the frame assembly 30 and has a third opening 41 for avoiding the lens 83; the lens support 50 is disposed inside the bracket 40 and the bracket 40 is connected to the lens support 50 via an axial spring 60 so that the lens support 50 can carry the lens 83 to move relative to the bracket 40 in the axial direction of the lens 83; the frame assembly 30 is connected to the bracket 40 via a lateral spring 70 so that the bracket 40 can drive the lens support 50 to move in a direction perpendicular to the axial direction of the lens 83; the lateral coil 80 provides power for the movement of the bracket 40; a plurality of driving magnets 81 are disposed corresponding to a plurality of lateral coils 80; the driving coil 82 is wound on the lens support 50 and is located in the magnetic field formed by the driving magnets 81.

[0056] When using the optical zoom motor with the above-described structure, the interaction between the driving magnet 81 and the driving coil 82 allows the lens support 50 to move relative to the bracket 40, thereby achieving the focusing function of the optical zoom motor. Furthermore, since a lateral coil 80 is also provided, the interaction between the lateral coil 80 and the driving magnet 81 allows the lens support 50 to move relative to the frame assembly 30 along with the bracket 40, effectively ensuring the image stabilization performance of the optical zoom motor. Therefore, by using the optical zoom motor of this application, a clearer image can be achieved, effectively solving the problem of poor performance of existing optical zoom motors.

[0057] When current is supplied to the drive coil 82, an electromagnetic force is generated between the drive coil 82 and the drive magnet 81. According to Fleming's left-hand rule, the electromagnetic force drives the lens support 50 to move linearly along the optical axis of the lens 83. The lens support 50 eventually stops at the position where the combined force of the electromagnetic force generated between the drive coil 82 and the drive magnet 81 and the elastic force of the axial spring reaches equilibrium. By supplying a predetermined current to the drive coil 82, the lens support 50 can be controlled to move to the target position, thereby achieving the purpose of focusing.

[0058] It should also be noted that when using the optical zoom motor of this application in a mobile phone with a camera function, special attention needs to be paid to the installation direction of the optical zoom motor. During assembly, the optical zoom motor needs to be set parallel to the back cover of the mobile phone or parallel to the screen of the mobile phone. Alternatively, when using the optical zoom motor of this application, the movement direction of the lens support 50 is parallel to the back cover or screen of the mobile phone when focusing. In this case, in order to ensure the normal use of the camera module of the mobile phone, in the actual shooting process, in addition to using the optical zoom motor of this application, a prism motor and prism system must also be used together, that is, a prism light-collecting drive system with a degree of prism is added to the end of the lens 83. Its structural feature is that the incident surface of the prism motor is parallel to the back cover or screen of the mobile phone and can collect the target to be photographed, and the reflecting surface of the prism motor is aligned with the opening of the shield, i.e., the lens 83. The specific implementation method is to align the lens 83 along an optical axis parallel to the body, and then reflect the light entering the camera through the reflection of the prism onto the optical zoom lens 83 and the image sensor. In this way, an equivalent focal length that is longer than that of a traditional camera with a vertical mounting direction, i.e. facing outward on the surface of the phone, can be created.

[0059] Specifically, the housing 10 includes a top wall 12 and a circumferential side wall 13. The top wall 12 is disposed opposite to the base 20, and the top wall 12 is connected to the base 20 through the circumferential side wall 13. One side of the circumferential side wall 13 has a first opening 11. In this application, this arrangement allows the lens support 50 to move toward or away from the first opening 11 when the optical zoom motor is focusing.

[0060] Specifically, a second opening 31 is provided on a set of oppositely arranged sidewalls of the frame assembly 30.

[0061] Specifically, a set of opposing sidewalls of the support 40 have a third opening 41, and the planes containing the first opening 11, the second opening 31, and the third opening 41 are parallel to each other. By providing the third opening 41, the movement of the lens support 50 can be accommodated.

[0062] Specifically, the lens opening of the lens support 50 faces the first opening 11.

[0063] Specifically, at least one lateral coil 80 is provided on a set of oppositely arranged sidewalls of the frame assembly 30, and the sidewall where the lateral coil 80 is located is adjacent to the sidewall where the second opening 31 is located. This arrangement ensures that the lateral coil 80 can sense the driving magnet 81, thereby realizing the image stabilization function of the optical zoom motor.

[0064] Specifically, multiple driving magnets 81 are arranged on the bracket 40. This arrangement effectively ensures that when the lateral coil 80 interacts with the driving magnets 81, the bracket 40 can move together with the driving magnets 81, thereby ensuring the stability between the bracket 40 and the lens support 50. Furthermore, when the driving coil 82 interacts with the driving magnets 81, it also ensures that the lens support 50 can move relative to the bracket 40.

[0065] Specifically, the frame assembly 30 includes a frame 32 and a flexible PCB board 33. A second opening 31 is disposed on the frame 32; a lateral coil 80 is disposed on the flexible PCB board 33, and at least a portion of the flexible PCB board 33 overlaps the frame 32.

[0066] Optionally, the lateral coil 80 is disposed on the side of the flexible PCB board 33 facing the bracket 40.

[0067] Optionally, the lateral coil 80 is embedded inside the flexible PCB board 33.

[0068] Specifically, the frame 32 has multiple clearance openings 321 at the positions corresponding to the multiple drive magnets 81. This arrangement effectively enhances the induction effect between the drive magnets 81 and the lateral coils 80, and also effectively prevents collisions between the frame 32 and the drive magnets 81. Furthermore, this arrangement ensures a more compact internal structure and a lighter overall weight for the optical zoom motor.

[0069] Specifically, the frame 32 has an overlap groove 322 on the side facing the top wall 12 of the outer shell 10, and at least a portion of the flexible PCB board 33 is disposed in the overlap groove 322.

[0070] Specifically, the outer surface of the sidewall of the frame 32 facing the driving magnet 81 has a positioning groove 323, and at least a portion of the flexible PCB board 33 is disposed in the positioning groove 323.

[0071] This configuration ensures a tighter connection between the frame 32 and the flexible PCB board 33, and effectively prevents relative movement between the flexible PCB board 33 and the frame 32, thereby guaranteeing the stability between the frame 32 and the flexible PCB board 33.

[0072] In this application, the sidewall where the lateral coil 80 is located is perpendicular to the top wall 12 of the housing 10.

[0073] Specifically, the base 20 has a positioning protrusion 21 at its corner that mates with the frame 32. This design allows the frame 32 to be positioned using the positioning protrusion 21, thereby effectively ensuring the stability between the base 20 and the frame 32.

[0074] In one specific embodiment of this application, at least a portion of the lateral coil 80 is disposed inside the flexible PCB board 33.

[0075] Specifically, the frame 32 has a positioning protrusion 324 at the corner of the side facing the top wall 12 of the outer shell 10. This arrangement effectively ensures the stability between the frame 32 and the outer shell 10 and prevents collisions between the outer shell 10 and the frame 32.

[0076] Specifically, the bracket 40 has a receiving opening 42 on the side wall corresponding to the driving magnet 81 to accommodate the driving magnet 81. This arrangement ensures the induction effect between the driving magnet 81 and the driving coil 82, and makes the overall structure of the optical zoom motor more compact.

[0077] Specifically, the lens support 50 has a first limiting protrusion 51 extending radially on the side facing the first opening 11, and the bracket 40 is provided with a limiting groove 43 that cooperates with the first limiting protrusion 51. With this configuration, when the drive coil 82 and the drive magnet 81 sense each other and cause the lens support 50 to move relative to the bracket 40, the movement of the lens support 50 can be limited by the cooperation of the first limiting protrusion 51 and the limiting groove 43.

[0078] Specifically, the lens support 50 has a second limiting protrusion 52 on the side away from the first opening 11, and at least a portion of the second limiting protrusion 52 extends out of the bracket 40 in a direction away from the first opening. With this arrangement, the lens 83 located inside the lens support 50 can be effectively limited, thereby ensuring the stability between the lens support 50 and the lens 83.

[0079] In one specific embodiment of this application, there are two lateral coils 80 and two driving magnets 81. The optical zoom motor also includes two sets of lateral springs 70 and two sets of axial springs 60. A set of lateral springs 70 is disposed between each lateral coil 80 and each driving magnet 81; one set of axial springs 60 is disposed at the end of the lens support 50 near the first opening 11, and the other set of axial springs 60 is disposed at the end of the lens support 50 away from the first opening 11. By providing two sets of lateral springs 70, the stability of the connection between the frame 32 and the bracket 40 can be effectively ensured. Similarly, by providing two sets of axial springs 60, the stability of the connection between the bracket 40 and the lens support 50 can be effectively ensured.

[0080] Specifically, the optical zoom motor also includes a first PCB board 90 and a second PCB board 100. The first PCB board 90 is disposed on the side of the base 20 facing the frame assembly 30, and a first capacitor 91, a first position sensor 92, a first pin group 93, and a second pin group 94 are disposed on the first PCB board 90. The first position sensor 92 is electrically connected to the first pin group 93. The flexible PCB board 33 of the frame assembly 30 is electrically connected to the position sensor, so that the lateral coil 80 is electrically connected to the position sensor. The bracket 40 has a receiving groove on the side facing the base 20, and the second PCB board 100 is disposed on the receiving groove. The second PCB board 100 is disposed on the second capacitor 110 and a second position sensor 120. Since the first PCB board 90 has the first pin group 93 and the second pin group 94, the optical zoom motor can achieve electrical connection with the outside world through the first pin group 93 and the second pin group 94. The position of the bracket 40 is sensed by the first position sensor 92, thereby controlling the current entering the lateral coil 80 and causing the lateral coil 80 to sense the drive magnet 81 to achieve image stabilization. The position of the lens support 50 is sensed by the second position sensor 120, thereby controlling the current entering the drive coil 82 and enabling the focusing function of the optical zoom motor.

[0081] Specifically, at least a portion of the first capacitor 91 and at least a portion of the first position sensor 92 extend into the frame assembly 30. This arrangement effectively ensures a closer fit between the first PCB board 90, the frame 32, and the base plate, thereby ensuring a more compact overall structure for the optical zoom motor.

[0082] Specifically, at least a portion of the second capacitor 110 and at least a portion of the second position sensor 120 extend into the bracket 40. This arrangement effectively ensures a tighter connection between the second PCB board 100 and the bracket 40.

[0083] Specifically, the optical zoom motor also includes a first Hall magnet 200 and a second Hall magnet 210. The first Hall magnet 200 is disposed on the side of the bracket 40 facing the base 20, and the first position sensor 92 senses the first Hall magnet 200; the second Hall magnet 210 is disposed on the side of the lens support 50 near the base 20, and the second position sensor 120 senses the second Hall magnet 210. With this arrangement, when the lateral coil 80 senses the drive magnet 81 and causes the bracket 40 to move relative to the frame 32, the image stabilization performance of the optical zoom motor can be ensured through the cooperation of the first position sensor 92 and the first Hall magnet 200. Furthermore, the cooperation of the second position sensor 120 and the second Hall magnet 210 enables the optical zoom motor to focus more accurately.

[0084] Furthermore, in this application, the OIS image stabilization function is achieved by setting the first PCB board 90, while the second PCB board 100 realizes the closed-loop drive of the lens support 50, thereby ensuring the fast and accurate performance of the optical zoom motor.

[0085] Specifically, the optical zoom motor also includes a first connecting component 34 and a second connecting component 44. At least a portion of the first connecting component 34 is disposed inside the frame 32 of the frame assembly 30, and one end of the first connecting component 34 is electrically connected to the second end pin group 94; the second connecting component 44 is disposed on the bracket 40, and one end of the second connecting component 44 is electrically connected to the other end of the first connecting component 34 through a set of lateral springs 70, and the other end of the axial springs 60 is electrically connected to the second PCB board 100.

[0086] In one specific embodiment of this application, the first connecting component 34 is integrally molded within the frame 32 using an INSERT-MOLDING method.

[0087] Specifically, the second PCB board 100 is also provided with a third pin group 130, the second connecting component 44 is electrically connected to the third pin group 130, and the second position sensor 120 is electrically connected to the third pin group 130.

[0088] Specifically, the second PCB board 100 is also provided with a fourth pin group 140, which is electrically connected to the second position sensor 120; the third connecting component 150, the axial spring 60 near the first opening 11 is electrically connected to the fourth pin group 140 through the third connecting component 150.

[0089] Specifically, the first connecting component 34 and the second connecting component 44 each include four connecting bodies 300, the second end group 94 and the third end group 130 each include four conductive ends, and the lateral spring 70 includes four sub-springs 71. The two ends of the four connecting bodies 300 of the first connecting component 34 are respectively connected to the four conductive ends of the second end group 94 and the four sub-springs 71 of the lateral spring 70, and the two ends of the four connecting bodies 300 of the second connecting component 44 are respectively connected to the four conductive ends of the third end group 130 and the four sub-springs 71 of the lateral spring 70.

[0090] It should be noted that in this application, the first pin group 93 also has four conductive pins, and the first position sensor 92 and the second position sensor 120 are respectively connected to the four conductive pins of the first pin group 93 and the third pin group 130.

[0091] For the first position sensor 92, the four conductive pins respectively control the voltage of the VCC input circuit on the first position sensor 92, the operating voltage of the VDD device (i.e., the chip's operating voltage), the SDA serial data line, and the SCL clock data line. This corrects the movement of the bracket 40.

[0092] For the second position sensor 120, the four conductive pins respectively control the voltage of the VCC input circuit on the second position sensor 120, the internal operating voltage of the VDD device (i.e., the chip's operating voltage), the SDA serial data line, and the SCL clock data line. This corrects the movement of the lens support 50.

[0093] Specifically, the four conductive pins of the third pin group 130 are located on the same straight line. This arrangement ensures that the second connecting component 44 can be more easily connected to the third pin group 130, and also prevents short circuits between the conductive pins of the third pin group 130 and the connecting body 300 of the second connecting component 44.

[0094] Specifically, the fourth terminal group 140 includes a first connecting terminal 160 and a second connecting terminal 170, the axial spring 60 includes a first connecting spring 61 and a second connecting spring 62, and the third connecting assembly 150 includes a first connecting portion 180 and a second connecting portion 190. The first connecting terminal 160 and the first connecting spring 61 are electrically connected through the first connecting portion 180, and the second connecting terminal 170 and the second connecting spring 62 are electrically connected through the second connecting portion 190.

[0095] Optionally, the first connecting pin 160 and the second connecting pin 170 are located on the same straight line.

[0096] In one specific embodiment of this application, the first connecting pin 160 and the second connecting pin 170 are located on both sides of the third pin group 130, respectively.

[0097] Specifically, the first connecting spring 61 and the second connecting spring 62 are respectively provided with solder holes 63. The first connecting spring 61 and the second connecting spring 62 are respectively welded to the winding post 53 of the lens support 50 through the solder holes 63 to realize the electrical connection between the drive coil 82 and the fourth terminal group 140.

[0098] It should be noted that in this application, only the first connecting spring 61 and the second connecting spring 62 of the axial spring 60 near the first opening 11 are welded to the winding post 53 of the lens support 50, and during the welding process, solder paste is first injected into the solder hole 63, and then laser spot welding is performed on the solder paste.

[0099] Specifically, the first connecting spring 61 and the second connecting spring 62 of the axial spring 60 away from the first opening 11 have the same structure.

[0100] Specifically, both ends of the first connecting spring 61 of the axial spring 60 near the first opening 11 correspond to the same side of the bracket 40. The second connecting spring 62 of the axial spring 60 near the first opening 11 has an inner structure and an outer structure. The bracket 40 is connected to the outer structure, and the lens support 50 is connected to the inner structure. At least a portion of the inner and outer structures are arranged opposite to each other. With this arrangement, the first connecting spring 61 and the second connecting spring 62 of the axial spring 60 near the first opening 11 can be more easily electrically connected to the first connecting pin 160 and the second connecting pin 170, respectively.

[0101] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0102] 1. When the mobile phone uses the optical zoom motor described in this application, it can effectively improve the focal length of the mobile phone camera module;

[0103] 2. Effectively improves the image stabilization performance of the optical zoom motor;

[0104] 3. Simple structure and stable performance.

[0105] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0106] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0107] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0108] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An optical zoom motor, characterized in that, include: The housing (10) has a first opening (11) for avoiding the lens (83). A base (20) is disposed below the outer casing (10) and forms an accommodating space between the outer casing (10); A frame assembly (30) is disposed within the accommodating space and has a second opening (31) for avoiding the lens (83). A bracket (40) is disposed inside the frame assembly (30) and has a third opening (41) for avoiding the lens (83). Lens support (50) is disposed inside the bracket (40), and the bracket (40) is connected to the lens support (50) via an axial spring (60) so that the lens support (50) can carry the lens (83) to move relative to the bracket (40) in the axial direction of the lens (83); Lateral spring (70), the frame assembly (30) is connected to the bracket (40) via the lateral spring (70) so that the bracket (40) can drive the lens support (50) to move in a direction perpendicular to the axis of the lens (83); Two sets of lateral coils (80) provide power for the movement of the support (40); Multiple driving magnets (81) are provided, each driving magnet (81) corresponding to a multiple lateral coils (80); A set of lateral reeds (70) is provided between each of the lateral coils (80) and each of the driving magnets (81). At least one lateral coil (80) is provided on a set of oppositely arranged sidewalls of the frame assembly (30), and the sidewall where the lateral coil (80) is located is adjacent to the sidewall where the second opening (31) is located; The lateral spring (70) includes four sub-springs (71), the two ends of which are connected to the frame assembly (30) and the bracket (40) respectively; A drive coil (82) is wound around the lens support (50) and is located in the magnetic field formed by the drive magnet (81).

2. The optical zoom motor according to claim 1, characterized in that, The outer casing (10) includes a top wall (12) and a circumferential side wall (13). The top wall (12) is disposed opposite to the base (20), and the top wall (12) is connected to the base (20) through the circumferential side wall (13). One side of the circumferential side wall (13) has the first opening (11); and / or The frame assembly (30) has a second opening (31) on a set of oppositely arranged sidewalls; and / or The bracket (40) has a third opening (41) on a set of oppositely arranged sidewalls, and the planes containing the first opening (11), the second opening (31), and the third opening (41) are parallel to each other; and / or The lens opening of the lens support (50) faces the first opening (11).

3. The optical zoom motor according to claim 1, characterized in that, Multiple drive magnets (81) are disposed on the bracket (40).

4. The optical zoom motor according to claim 1, characterized in that, The framework component (30) includes: The frame (32) has a second opening (31) disposed on the frame (32); A flexible PCB board (33) is provided on which the lateral coil (80) is disposed, and at least a portion of the flexible PCB board (33) overlaps the frame (32).

5. The optical zoom motor according to claim 4, characterized in that, The frame (32) is provided with multiple clearance openings (321) at the positions corresponding to the multiple driving magnets (81); and / or The frame (32) has an overlap groove (322) on the side facing the top wall (12) of the outer shell (10), and at least a portion of the flexible PCB board (33) is disposed within the overlap groove (322); and / or The outer surface of the frame (32) facing the drive magnet (81) has a positioning groove (323), and at least a portion of the flexible PCB board (33) is disposed in the positioning groove (323).

6. The optical zoom motor according to claim 1, characterized in that, The side wall where the lateral coil (80) is located is perpendicular to the top wall (12) of the outer casing (10).

7. The optical zoom motor according to claim 4, characterized in that, The base (20) is provided with a positioning protrusion (21) at the corner that mates with the frame (32); and / or At least a portion of the lateral coil (80) is disposed inside the flexible PCB board (33); and / or The frame (32) has a positioning protrusion (324) at the corner of the side facing the top wall (12) of the outer shell (10).

8. The optical zoom motor according to claim 1, characterized in that, The bracket (40) has a receiving opening (42) on the side wall corresponding to the driving magnet (81) to accommodate the driving magnet (81).

9. The optical zoom motor according to claim 1, characterized in that, The lens support (50) has a first limiting protrusion (51) extending radially on the side facing the first opening (11), and the bracket (40) is provided with a limiting groove (43) that cooperates with the first limiting protrusion (51).

10. The optical zoom motor according to claim 1, characterized in that, The lens support (50) has a second limiting protrusion (52) on the side away from the first opening (11), and at least a portion of the second limiting protrusion (52) extends out of the bracket (40) in a direction away from the first opening.

11. The optical zoom motor according to any one of claims 1 to 10, characterized in that, There are two lateral coils (80) and two driving magnets (81), and the optical zoom motor also includes: Two sets of axial springs (60) are provided, one set of axial springs (60) is provided at one end of the lens support (50) near the first opening (11), and the other set of axial springs (60) is provided at one end of the lens support (50) away from the first opening (11).

12. The optical zoom motor according to claim 11, characterized in that, The optical zoom motor also includes: A first PCB board (90) is disposed on the side of the base (20) facing the frame assembly (30), and a first capacitor (91), a first position sensor (92), a first pin group (93) and a second pin group (94) are disposed on the first PCB board (90). The first position sensor (92) is electrically connected to the first pin group (93), and the flexible PCB board (33) of the frame assembly (30) is electrically connected to the position sensor so that the lateral coil (80) is electrically connected to the position sensor. The second PCB board (100) has a receiving groove on the side of the bracket (40) facing the base (20), the second PCB board (100) is disposed on the receiving groove, and the second PCB board (100) is provided with a second capacitor (110) and a second position sensor (120).

13. The optical zoom motor according to claim 12, characterized in that, At least a portion of the first capacitor (91) and at least a portion of the first position sensor (92) extend into the frame assembly (30); and / or At least a portion of the second capacitor (110) and at least a portion of the second position sensor (120) extend into the bracket (40).

14. The optical zoom motor according to claim 12, characterized in that, The optical zoom motor also includes: A first Hall magnet (200) is disposed on the side of the bracket (40) facing the base (20), and the first position sensor (92) senses the first Hall magnet (200); The second Hall magnet (210) is disposed on the side of the lens support (50) near the base (20), and the second position sensor (120) senses the second Hall magnet (210).

15. The optical zoom motor according to claim 12, characterized in that, The optical zoom motor also includes: A first connecting component (34) is disposed inside the frame (32) of the frame component (30), and one end of the first connecting component (34) is electrically connected to the second end pin group (94). The second connecting component (44) is disposed on the bracket (40), and one end of the second connecting component (44) is electrically connected to the other end of the first connecting component (34) through a set of lateral springs (70), and the other end of the axial spring (60) is electrically connected to the second PCB board (100).

16. The optical zoom motor according to claim 15, characterized in that, The second PCB board (100) is also provided with a third pin group (130), the second connecting component (44) is electrically connected to the third pin group (130), and the second position sensor (120) is electrically connected to the third pin group (130).

17. The optical zoom motor according to claim 16, characterized in that, The second PCB board (100) is also provided with: The fourth pin group (140) is electrically connected to the second position sensor (120); The third connecting assembly (150) is used to electrically connect the axial spring (60) near the first opening (11) to the fourth end group (140).

18. The optical zoom motor according to claim 16, characterized in that, The first connecting component (34) and the second connecting component (44) each include four connecting bodies (300). The second end group (94) and the third end group (130) each include four conductive ends. The two ends of the four connecting bodies (300) of the first connecting component (34) are respectively connected to the four conductive ends of the second end group (94) and the four sub-springs (71) of the lateral spring (70). The two ends of the four connecting bodies (300) of the second connecting component (44) are respectively connected to the four conductive ends of the third end group (130) and the four sub-springs (71) of the lateral spring (70).

19. The optical zoom motor according to claim 18, characterized in that, The four conductive pins of the third pin group (130) are located in a straight line.

20. The optical zoom motor according to claim 17, characterized in that, The fourth terminal group (140) includes a first connecting terminal (160) and a second connecting terminal (170), the axial spring (60) includes a first connecting spring (61) and a second connecting spring (62), and the third connecting component (150) includes a first connecting portion (180) and a second connecting portion (190). The first connecting terminal (160) and the first connecting spring (61) are electrically connected through the first connecting portion (180), and the second connecting terminal (170) and the second connecting spring (62) are electrically connected through the second connecting portion (190).

21. The optical zoom motor according to claim 20, characterized in that, The first connecting pin (160) and the second connecting pin (170) are located on the same straight line; and / or The first connecting pin (160) and the second connecting pin (170) are located on both sides of the third pin group (130).

22. The optical zoom motor according to claim 20, characterized in that, The first connecting spring (61) and the second connecting spring (62) are respectively provided with solder holes (63). The first connecting spring (61) and the second connecting spring (62) are respectively welded to the winding post (53) of the lens support (50) through the solder holes (63) to realize the electrical connection between the drive coil (82) and the fourth end group (140).

23. The optical zoom motor according to claim 20, characterized in that, The first connecting spring (61) and the second connecting spring (62) of the axial spring (60) away from the first opening (11) have the same structure; and / or Both ends of the first connecting spring (61) of the axial spring (60) near the first opening (11) correspond to the same side of the bracket (40). The second connecting spring (62) of the axial spring (60) near the first opening (11) has an inner structure and an outer structure. The bracket (40) is connected to the outer structure, and the lens support (50) is connected to the inner structure. At least a portion of the inner structure and the outer structure are arranged opposite to each other.

24. A camera device, characterized in that, Includes the optical zoom motor according to any one of claims 1 to 23.

25. A mobile terminal, characterized in that, Includes the camera device described in claim 24.

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