WO2021135185A1

WO2021135185A1 - Optical zoom motor, camera device and mobile terminal

Info

Publication number: WO2021135185A1
Application number: PCT/CN2020/104931
Authority: WO
Inventors: 龚高峰; 王建华; 唐利新
Original assignee: 上海比路电子股份有限公司; 上海比路电子科技有限公司
Priority date: 2019-12-31
Filing date: 2020-07-27
Publication date: 2021-07-08
Also published as: CN110989127A

Abstract

An optical zoom motor, a camera device and a mobile terminal. The optical zoom motor comprises: a housing (10) having a first opening portion (11) for bypassing a lens (83); a base (20) provided below the housing (10) and forming an accommodating space with the housing (10); a frame assembly (30) having a second opening portion (31) for bypassing the lens (83); a holder (40) having a third opening portion (41) for bypassing the lens (83); a lens support body (50) provided inside the holder (40); a lateral spring (70), the frame assembly (30) being connected to the holder (40) by means of the lateral spring (70), so that the holder (40) can drive the lens support body (50) to move in a direction perpendicular to an axial direction of the lens (83); a plurality of lateral coils (80); a plurality of driving magnets (81); and a driving coil (82) wound on the lens support body (50) and located within a magnetic field formed by the driving magnets (81). In this way, the performance of the optical zoom motor in use can be improved.

Description

Optical zoom motor, camera device and mobile terminal

Technical field

This application relates to the field of periscope focusing devices, and in particular to an optical zoom motor, a camera device and a mobile terminal.

Background technique

In recent years, with market demand, mobile phone cameras have the requirements of high pixels, large aperture, and ultra-thin in order to adapt to new development trends.

Existing auto focus devices are all formed by using a voice coil motor, a lens, an image sensor, and a circuit board to accumulate the height. Due to the increase in pixels of mobile phones and the thinner and thinner product height requirements, the existing technology has bottlenecks in the use of products. The overall optical height of the lens with large aperture and high pixels is relatively high, which makes the current accumulated product height unable to meet the needs of ultra-thin mobile phone bodies. At the same time, due to deviations in the assembly of the image sensor, the center of the light and the center of the image sensor cannot be overlapped, which affects the imaging quality of the image sensor, and causes the final output photos to not achieve the best results.

Due to the limitation of the thickness of the mobile phone, a mobile phone camera with a conventional vertical placement (that is, facing the outside on the surface of the mobile phone) has a small focal length and a limited optical zoom capability. The periscope camera of this application is different from the vertical arrangement of traditional lenses. It is arranged horizontally in the mobile phone and adds optical conversion components. It consists of an optical zoom motor, lens group, prism, etc., and uses a special optical prism to let light Refraction enters the lens group to achieve imaging, which can achieve a higher optical zoom factor, so that the lens can clearly capture farther scenes. The periscope structure has good application prospects when applied to smart phones.

Here, the purpose of this application is to design an optical zoom motor with periscope function, coupled with the functional assistance of the prism part, and finally realize the parallel placement of the motor on the mobile phone, which further reduces the height of the mobile phone and achieves super Thin body and high-quality optical zoom imaging effect.

Summary of the invention

Various embodiments of the present application provide an optical zoom motor, a camera device, and a mobile terminal to solve the problem of poor performance of the optical zoom motor in the prior art.

In an embodiment of the present application, an optical zoom motor is provided, including: a housing, the housing has a first opening for avoiding the lens; a base, the base is arranged below the housing and forms an accommodation space between the base and the housing Frame assembly, the frame assembly is arranged in the accommodating space, and the frame assembly has a second opening for avoiding the lens; a bracket, the bracket is arranged inside the frame assembly, the bracket has a third opening for avoiding the lens; The support body, the lens support body is arranged inside the bracket, and the bracket is connected with the lens support body through an axial reed, so that the lens support body can carry the lens to move in the axial direction of the lens relative to the bracket; lateral reed, frame The component is connected with the bracket through the side reeds, so that the bracket can drive the lens support body to move in the direction perpendicular to the axial direction of the lens; multiple lateral coils, which provide power to the movement of the bracket; multiple drive magnets , A plurality of driving magnets are arranged corresponding to a plurality of lateral coils; driving coils, the driving coils are wound on the lens support and are located in a magnetic field formed by the driving magnets.

In a preferred embodiment of the present application, the housing includes a top wall and a circumferential side wall, the top wall is arranged opposite to the base, and the top wall is connected to the base through the circumferential side wall, and one wall of the circumferential side wall has a first Or a set of oppositely arranged side walls of the frame assembly has a second opening; or a set of oppositely arranged side walls of the bracket have a third opening, and the first, second, and first openings The planes on which the three openings are located are parallel to each other; or the lens opening of the lens support body faces the first opening.

In a preferred embodiment of the present application, a set of oppositely arranged side walls of the frame assembly are respectively provided with at least one lateral coil, and the side wall where the lateral coil is located is adjacent to the side wall where the second opening is located; or A plurality of driving magnets are arranged on the bracket.

In a preferred embodiment of the present application, the frame assembly includes: a frame, the second opening is arranged on the frame; a flexible PCB board, the lateral coil is arranged on the flexible PCB board, and at least a part of the flexible PCB board is overlapped on the frame on.

In a preferred embodiment of the present application, the frame is provided with a plurality of relief openings at the positions corresponding to the plurality of driving magnets; or the side of the frame facing the top wall of the housing has lap grooves, and at least a part of the flexible PCB board is arranged in In the overlapping groove; or the outer surface of the frame facing the side wall of the driving magnet has a positioning groove, and at least a part of the flexible PCB board is arranged in the positioning groove.

In a preferred embodiment of the present application, the side wall where the lateral coil is located is perpendicular to the top wall of the housing.

In a preferred embodiment of the present application, the corners of the base are provided with positioning protrusions that cooperate with the frame; or at least a part of the lateral coil is provided inside the flexible PCB; or the frame faces the top wall of the housing. There are positioning bumps at the corners.

In a preferred embodiment of the present application, the side wall of the bracket corresponding to the driving magnet has an accommodating opening for accommodating the driving magnet.

In a preferred embodiment of the present application, a side of the lens support body facing the first opening has a first limiting protrusion extending in the radial direction, and a limiting protrusion that cooperates with the first limiting protrusion is provided on the bracket. groove.

In a preferred embodiment of the present application, a side of the lens support body away from the first opening has a second limiting protrusion, and at least a part of the second limiting protrusion extends out of the bracket in a direction away from the first opening .

In a preferred embodiment of the present application, there are two lateral coils and driving magnets, and the optical zoom motor further includes: two sets of lateral reeds, and a set is arranged between each lateral coil and each driving magnet. Lateral reeds; two sets of axial reeds, one set of axial reeds is arranged on the end of the lens support body close to the first opening, and the other set of axial reeds is arranged on the end of the lens support body away from the first opening .

In a preferred embodiment of the present application, the optical zoom motor further includes: a first PCB board, the first PCB board is arranged on the side of the base facing the frame assembly, and the first PCB board is provided with a first capacitor and a first position The sensor, the first end foot group and the second end foot group, and the first position sensor is electrically connected to the first end foot 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 ; The second PCB board, the side of the bracket facing the base has a accommodating slot, the second PCB board is arranged on the accommodating slot, and the second PCB board is provided with a second capacitor and a second position sensor.

In a preferred embodiment of the present application, at least a part of the first capacitor and at least a part of the first position sensor respectively extend into the frame assembly; or at least a part of the second capacitor and at least a part of the second position sensor respectively extend into the bracket.

In a preferred embodiment of the present application, the optical zoom motor further includes: a first Hall magnet, the first Hall magnet is arranged on the side of the bracket facing the base, and the first position sensor is inductive with the first Hall magnet; Two Hall magnets, the second Hall magnet is arranged on the side of the lens support body close to the base, and the second position sensor is inductive with the second Hall magnet.

In a preferred embodiment of the present application, the optical zoom motor further includes: a first communication component, at least a part of the first communication component is disposed inside the frame of the frame component, and one end of the first communication component is connected to the second end leg assembly. Electrically connected; the second communicating component, the second communicating component is arranged on the bracket, and one end of the second communicating component is electrically connected to the other end of the first communicating component through a set of lateral reeds, and the other end of the axial reed is electrically connected to the The second PCB board is electrically connected.

In a preferred embodiment of the present application, a third terminal pin group is further provided on the second PCB board, the second connecting component is electrically connected with the third terminal pin group, and the second position sensor is electrically connected with the third terminal pin group.

In a preferred embodiment of the present application, the second PCB board is further provided with: a fourth end pin group, which is electrically connected to the second position sensor; and a third communication component, which is close to the shaft of the first opening. The direction spring is electrically connected with the fourth terminal pin group through the third connecting component.

In a preferred embodiment of the present application, the first connecting component and the second connecting component each include four connecting bodies, the second end leg group and the third end leg group each include four conductive end legs, and the lateral reed includes Four sub-reeds, the two ends of the four connecting bodies of the first connecting component are respectively connected to the four conductive end legs of the second terminal foot group and the four sub-reeds of the side reeds, and the four second connecting components are connected to each other. The two ends of the body are respectively connected with the four conductive end pins of the third end pin group and the four sub-reeds of the lateral reeds.

In a preferred embodiment of the present application, the four conductive end pins of the third end pin group are located on the same straight line.

In a preferred embodiment of the present application, the fourth end leg group includes a first communication end leg and a second communication end leg, the axial reed includes a first communication reed and a second communication reed, and the third communication component includes The first communicating portion and the second communicating portion, the first communicating end leg and the first communicating reed are electrically connected through the first communicating portion, and the second communicating end leg and the second communicating reed are electrically connected through the second communicating portion.

In a preferred embodiment of the present application, the first communication end leg and the second communication end leg are located on the same straight line; or the first communication end leg and the second communication end leg are respectively located on both sides of the third end leg group.

In a preferred embodiment of the present application, the first connecting reed and the second connecting reed are respectively provided with solder holes, and the first connecting reed and the second connecting reed are respectively passed through the soldering hole and the winding post of the lens support. Welding to realize the electrical connection between the driving coil and the fourth terminal pin group.

In a preferred embodiment of the present application, the first connecting reed and the second connecting reed of the axial reed far away from the first opening have the same structure; or the first connecting reed of the axial reed close to the first opening Both ends of the reed correspond to the same side of the bracket. The second connecting reed of the axial reed near the first opening has an inner structure and an outer structure. The bracket is connected to the outer structure, and the lens support is connected to the inner structure. And at least a part of the inner structure and the outer structure are arranged opposite to each other.

The application also provides a camera device, including the above-mentioned optical zoom motor.

The present application also provides a mobile terminal, including the above-mentioned camera device.

Applying the technical solution of the present application, the optical zoom motor in the present application includes a housing, a base, a frame assembly, a bracket, a lens support, a lateral reed, a plurality of lateral coils, a plurality of driving magnets and a driving coil. The housing has a first opening for avoiding the lens; the base is arranged below the housing and forms an accommodating space between the housing; the frame assembly is arranged in the accommodating space, and the frame assembly has a second opening for avoiding the lens The bracket is arranged inside the frame assembly, and the bracket has a third opening for avoiding the lens; the lens support is arranged inside the bracket, and the bracket is connected to the lens support through an axial spring, so that the lens support can carry The lens moves in the axial direction of the lens relative to the bracket; the frame assembly is connected with the bracket through the side reed, so that the bracket can drive the lens support body to move in the direction perpendicular to the axial direction of the lens; the lateral coil gives the bracket movement Provide power; a plurality of driving magnets are arranged corresponding to a plurality of lateral coils; the driving coils are wound on the lens support and are in a magnetic field formed by the driving magnets.

When the optical zoom motor with the above structure is used, the lens support body can be moved relative to the bracket through the interaction of the driving magnet and the driving coil, thereby realizing the focusing function of the optical zoom motor. In addition, because the lateral coil is also provided, the interaction between the lateral coil and the driving magnet can make the lens support body together with the bracket act on the frame assembly, thereby effectively ensuring the anti-shake performance of the optical zoom motor. Therefore, by using the optical zoom motor in the present application, it is possible to ensure that the captured image is clearer, thereby effectively solving the problem of poor performance of the optical zoom motor in the prior art.

Description of the drawings

The drawings of the specification forming a part of the application are used to provide a further understanding of the application, and the exemplary embodiments and descriptions of the application are used to explain the application, and do not constitute an improper limitation of the application. In the attached picture:

Fig. 1 shows an exploded view of an optical zoom motor according to a specific embodiment of the present application;

FIG. 2 shows a schematic diagram of the structure of the first PCB board of the optical zoom motor in FIG. 1;

FIG. 3 shows a schematic structural diagram of a second PCB board of the optical zoom motor in FIG. 1;

4 shows a schematic diagram of the positional relationship between the bracket of the optical zoom motor and the second PCB board in the present application;

5 shows a schematic diagram of the positional relationship between the bracket of the optical zoom motor and the first Hall magnet in the present application;

6 shows a schematic diagram of the positional relationship between the lens support body of the optical zoom motor and the second Hall magnet in the present application;

FIG. 7 shows a schematic diagram of the positional relationship between the base of the optical zoom motor and the first PCB board in the present application;

FIG. 8 shows a schematic diagram of the positional relationship between the frame assembly and the base of the optical zoom motor in the present application;

FIG. 9 shows a schematic diagram of the positional relationship between the bracket of the optical zoom motor and the lens support in the present application;

FIG. 10 shows a schematic diagram of the positional relationship between the lens support body and the axial reed of the optical zoom motor in the present application;

FIG. 11 shows a schematic diagram of the positional relationship among the lens support body, the bracket, and the axial reed of the optical zoom motor in the present application.

Among them, the above drawings include the following reference signs:

10. Housing; 11. First opening; 12. Top wall; 13. Circumferential side wall; 20. Base; 21. Positioning protrusion; 30. Frame assembly; 31. Second opening; 32. Frame; 321 322. Overlap slot; 323. Positioning slot; 324. Positioning bump; 33. Flexible PCB board; 34. First connecting component; 40. Bracket; 41. Third opening; 42, accommodating opening 43. Limiting groove; 44. Second connecting component; 50. Lens support body; 51. First limiting protrusion; 52. Second limiting protrusion; 53, Winding post; 60, Axial reed 61. The first connecting reed; 62, the second connecting reed; 63, the solder hole; 70, the lateral reed; 71, the sub-reed; 80, the lateral coil; 81, the drive magnet; 82, the drive coil 83, lens; 90, the first PCB board; 91, the first capacitor; 92, the first position sensor; 93, the first terminal pin group; 94, the second terminal pin group; 100, the second PCB board; 110, The second capacitor; 120, the second position sensor; 130, the third terminal pin group; 140, the fourth terminal pin group; 150, the third connecting component; 160, the first connecting terminal pin; 170, the second connecting terminal pin; 180, the first connecting part; 190, the second connecting part; 200, the first Hall magnet; 210, the second Hall magnet; 300, the connecting body.

Detailed ways

It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present application will be described in detail with reference to the drawings and in conjunction with the embodiments.

In order to solve the problem of poor performance of the optical zoom motor in the prior art, the present application provides an optical zoom motor, a camera device and a mobile terminal.

The mobile terminal includes a camera device. The imaging device includes the following optical zoom motor.

It should be pointed out that the camera device in this application includes, but is not limited to, a smart phone with a camera function. In addition, when the optical zoom motor in this application is used on a smart phone, it can not only improve the performance of the camera module of the smart phone, but also effectively reduce the overall thickness of the smart phone, and can effectively solve the problem of the smart phone. The protruding problem of the set camera is to solve the problem that the rear camera of the smart phone protrudes from the rear shell of the smart phone.

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

As shown in Figures 1 to 11, 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 reed 70, a plurality of lateral coils 80, and a plurality of The drive magnet 81 and the drive coil 82 are driven. The housing 10 has a first opening 11 for avoiding the lens 83; the base 20 is arranged below the housing 10 and forms an accommodating space between the housing 10; the frame assembly 30 is arranged in the accommodating space, and the frame assembly 30 is useful To avoid the second opening 31 of the lens 83; the bracket 40 is provided inside the frame assembly 30, and the bracket 40 has a third opening 41 for avoiding the lens 83; the lens support 50 is provided inside the bracket 40, and the bracket 40 The lens support body 50 is connected to the lens support body 50 through the axial reed 60, so that the lens support body 50 can carry the lens 83 relative to the holder 40 to move in the axial direction of the lens 83; the frame assembly 30 is connected to the holder 40 through the lateral reed 70, So that the bracket 40 can drive the lens support 50 to move in the direction perpendicular to the axial direction of the lens 83; the lateral coil 80 provides power for the movement of the bracket 40; the plurality of driving magnets 81 are arranged corresponding to the plurality of lateral coils 80; The coil 82 is wound on the lens support 50 and is located in the magnetic field formed by the driving magnet 81.

When the optical zoom motor with the above structure is used, the lens support 50 can be moved relative to the bracket 40 through the interaction of the driving magnet 81 and the driving coil 82, thereby realizing the focusing function of the optical zoom motor. Since the side coil 80 is also provided, the interaction between the side coil 80 and the driving magnet 81 can make the lens support 50 and the bracket 40 act on the frame assembly 30, thereby effectively ensuring the protection of the optical zoom motor. Shake performance. Therefore, by using the optical zoom motor in the present application, it is possible to ensure that the captured image is clearer, thereby effectively solving the problem of poor performance of the optical zoom motor in the prior art.

When current is applied to the driving coil 82, an electromagnetic force is generated between the driving coil 82 and the driving magnet 81. According to the Fleming's left-hand rule, the lens support 50 is driven to make a straight line along the optical axis of the lens 83 due to the electromagnetic force. When moving, the lens support body 50 finally stays at the point where the resultant 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 a balanced state. By passing a predetermined current to the driving coil 82, the lens support 50 can be controlled to move to the target position, thereby achieving the purpose of focusing.

It should also be noted that when the optical zoom motor in this application is used on 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 arranged parallel to the rear shell of the mobile phone or parallel to the mobile phone screen. It is also said that when the optical zoom motor in this application is used, when the lens support 50 is driven to focus, the lens support The direction of movement of 50 is parallel to the back cover of the mobile phone or the mobile phone screen. At this time, in order to ensure the normal use of the camera module of the mobile phone, in the actual shooting process, in addition to the optical zoom motor in this application, it must also be used with the prism motor and the prism system, that is, add one at the end of the lens 83 The driving system of the prism daylighting. Its structural feature is that the incident surface of the prism motor is parallel to the mobile phone back shell or the mobile phone screen and can capture the target to be photographed, and the reflection surface of the prism motor is aligned with the opening of the shielding cover, that is, the lens 83. The specific approach is to align the lens 83 along an optical axis parallel to the body, and then reflect the light entering the camera to the optical zoom lens 83 and the image sensor through the reflection of the prism. Compared with the vertical installation direction of the traditional camera, the equivalent focal length is longer on the surface of the mobile phone towards the outside.

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, and one wall surface of the circumferential side wall 13 has The first opening 11. In the present application, with this arrangement, the lens support 50 can be moved in a direction toward or away from the first opening 11 when the optical zoom motor performs focusing.

Specifically, a set of opposite side walls of the frame assembly 30 has a second opening 31.

Specifically, a set of opposite side walls of the bracket 40 has a third opening 41, and the planes on which the first opening 11, the second opening 31, and the third opening 41 are located are parallel to each other. By providing the third opening 41, the movement of the lens support body 50 can be compromised.

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

Specifically, a group of opposite side walls of the frame assembly 30 are respectively provided with at least one lateral coil 80, and the side wall where the lateral coil 80 is located is adjacent to the side wall where the second opening 31 is located. Through this arrangement, it can be ensured that the lateral coil 80 and the driving magnet 81 are induced to realize the anti-shake function of the optical zoom motor.

Specifically, a plurality of driving magnets 81 are provided on the bracket 40. Through this arrangement, it can be effectively ensured that when the lateral coil 80 acts on the driving magnet 81, the support 40 can move together with the driving magnet 81, so that the stability between the support 40 and the lens support 50 can be ensured. Moreover, when the driving coil 82 and the driving magnet 81 act, it can also ensure that the lens support 50 can move relative to the bracket 40.

Specifically, the frame assembly 30 includes a frame 32 and a flexible PCB board 33. The second opening 31 is provided on the frame 32; the lateral coil 80 is provided on the flexible PCB board 33, and at least a part of the flexible PCB board 33 is overlapped on the frame 32.

Optionally, the lateral coil 80 is provided on the side of the flexible PCB 33 facing the bracket 40.

Optionally, the lateral coil 80 is embedded in the flexible PCB board 33.

Specifically, the frame 32 is provided with a plurality of relief openings 321 at positions corresponding to the plurality of driving magnets 81. Through this arrangement, the induction effect between the driving magnet 81 and the lateral coil 80 can be effectively enhanced, and the collision between the frame 32 and the driving magnet 81 can also be effectively prevented. Moreover, through this arrangement, it can also ensure that the internal structure of the optical zoom motor is more compact and the overall weight is lighter.

Specifically, the side of the frame 32 facing the top wall 12 of the housing 10 has an overlap groove 322, and at least a part of the flexible PCB board 33 is disposed in the overlap groove 322.

Specifically, the outer surface of the frame 32 facing the side wall of the driving magnet 81 has a positioning groove 323, and at least a part of the flexible PCB board 33 is disposed in the positioning groove 323.

Through this arrangement, the connection between the frame 32 and the flexible PCB board 33 can be ensured to be more compact, and the relative movement between the flexible PCB board 33 and the frame 32 can be effectively prevented, thereby ensuring the connection between the frame 32 and the flexible PCB board 33. stability.

In the present application, the side wall where the lateral coil 80 is located is perpendicular to the top wall 12 of the housing 10.

Specifically, the corners of the base 20 are provided with positioning protrusions 21 that cooperate with the frame 32. With this arrangement, the frame 32 can be positioned by the positioning protrusion 21, so that the stability between the base 20 and the frame 32 can be effectively ensured.

In a specific embodiment of the present application, at least a part of the lateral coil 80 is disposed inside the flexible PCB board 33.

Specifically, the frame 32 has a positioning protrusion 324 at a corner of one side facing the top wall 12 of the housing 10. Through this arrangement, the stability between the frame 32 and the housing 10 can be effectively ensured, and collisions between the housing 10 and the frame 32 can be avoided.

Specifically, the side wall of the bracket 40 corresponding to the driving magnet 81 has an accommodating opening 42 for accommodating the driving magnet 81. Through this arrangement, the induction effect between the driving magnet 81 and the driving coil 82 can be ensured, and the overall structure of the optical zoom motor can be made more compact.

Specifically, the side of the lens support 50 facing the first opening 11 has a first limiting protrusion 51 extending in the radial direction, and a limiting groove 43 that cooperates with the first limiting protrusion 51 is provided on the bracket 40 . With this arrangement, when the driving coil 82 and the driving magnet 81 interact with each other and make the lens support 50 move relative to the holder 40, the movement of the lens support 50 can be carried out through the cooperation of the first limiting protrusion 51 and the limiting groove 43. Limit.

Specifically, a side of the lens support body 50 away from the first opening 11 has a second limiting protrusion 52, and at least a part of the second limiting protrusion 52 extends out of the bracket 40 in a direction away from the first opening. Through this arrangement, the lens 83 located in the lens support 50 can be effectively limited, so that the stability between the lens support 50 and the lens 83 can be ensured.

In a specific embodiment of the present application, there are two lateral coils 80 and two driving magnets 81, and the optical zoom motor further includes two sets of lateral reeds 70 and two sets of axial reeds 60. A set of lateral reeds 70 is arranged between each lateral coil 80 and each driving magnet 81; a set of axial reeds 60 are arranged on one end of the lens support 50 close to the first opening 11, and the other set of shafts The direction spring 60 is provided at one end of the lens support 50 away from the first opening 11. By providing two sets of lateral reeds 70, the stability of the connection between the frame 32 and the bracket 40 can be effectively ensured. By providing two sets of axial reeds 60, the stability of the connection between the bracket 40 and the lens support 50 can be effectively ensured.

Specifically, the optical zoom motor further includes a first PCB board 90 and a second PCB board 100. The first PCB board 90 is provided on the side of the base 20 facing the frame assembly 30, and the first PCB board 90 is provided with a first capacitor 91, a first position sensor 92, a first terminal pin group 93 and a second terminal pin group 94 , And the first position sensor 92 is electrically connected with the first terminal pin group 93, the flexible PCB board 33 of the frame assembly 30 is electrically connected with the position sensor, so that the lateral coil 80 is electrically connected with the position sensor; the bracket 40 faces one side of the base 20 The side has a receiving groove, the second PCB board 100 is arranged on the receiving groove, and the second PCB board 100 is provided with a second capacitor 110 and a second position sensor 120. Since the first PCB board 90 has a first end pin group 93 and a second end pin group 94, the optical zoom motor can be electrically connected to the outside through the first end pin group 93 and the second end pin group 94. The position of the bracket 40 is sensed by the first position sensor 92 to control the current entering the lateral coil 80 and induce the lateral coil 80 and the driving magnet 81 to achieve the purpose of anti-shake. By providing the second position sensor 120, the position of the lens support 50 can be sensed, so as to control the current entering the driving coil 82, thereby realizing the focusing function of the optical zoom motor.

Specifically, at least a part of the first capacitor 91 and at least a part of the first position sensor 92 respectively extend into the frame assembly 30. Through this arrangement, it can effectively ensure that the first PCB board 90 is more closely attached to the frame 32 and the bottom plate, thereby ensuring that the overall structure of the optical zoom motor is more compact.

Specifically, at least a part of the second capacitor 110 and at least a part of the second position sensor 120 respectively extend into the bracket 40. Through this arrangement, the connection between the second PCB board 100 and the bracket 40 can be effectively ensured to be more compact.

Specifically, the optical zoom motor further includes a first Hall magnet 200 and a second Hall magnet 210. The first Hall magnet 200 is arranged on the side of the bracket 40 facing the base 20, and the first position sensor 92 is sensed by the first Hall magnet 200; the second Hall magnet 210 is arranged on the side of the lens support 50 close to the base 20 , And the second position sensor 120 senses the second Hall magnet 210. Through this arrangement, when the lateral coil 80 and the driving magnet 81 are induced and the bracket 40 moves relative to the frame 32, the anti-shake performance of the optical zoom motor can be ensured by the cooperation of the first position sensor 92 and the first Hall magnet 200 . The cooperation of the second position sensor 120 and the second Hall magnet 210 can make the focusing of the optical zoom motor more accurate.

Moreover, in the present application, the OIS anti-shake function is achieved by setting the first PCB board 90, and the second PCB board 100 is provided to realize the closed-loop driving of the lens support 50, thereby ensuring the fast and accurate performance of the optical zoom motor.

Specifically, the optical zoom motor further includes a first communication component 34 and a second communication component 44. At least a part of the first communication component 34 is disposed inside the frame 32 of the frame component 30, and one end of the first communication component 34 is electrically connected to the second terminal set 94; the second communication 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 reeds 70, and the other end of the axial reed 60 is electrically connected to the second PCB board 100.

In a specific embodiment of the present application, the first connecting component 34 is integrally molded in the frame 32 by means of INSERT-MOLDING.

Specifically, the second PCB board 100 is further provided with a third terminal pin group 130, the second communication component 44 is electrically connected with the third terminal pin group 130, and the second position sensor 120 is electrically connected with the third terminal pin group 130.

Specifically, the second PCB board 100 is further provided with a fourth end pin group 140, which is electrically connected to the second position sensor 120; and the third communication component 150, which is close to the axial spring of the first opening 11 The sheet 60 is electrically connected to the fourth terminal pin group 140 through the third connecting component 150.

Specifically, the first connecting component 34 and the second connecting component 44 respectively include four connecting bodies 300, the second end foot group 94 and the third end foot group 130 each include four conductive end legs, and the lateral reed 70 includes four Two sub-reeds 71, the two ends of the four connecting bodies 300 of the first connecting assembly 34 are respectively connected to the four conductive end legs of the second terminal foot group 94 and the four sub-reeds 71 of the lateral reeds 70, and the second connection The two ends of the four communicating bodies 300 of the assembly 44 are respectively connected to the four conductive end legs of the third end leg group 130 and the four sub-reeds 71 of the lateral reeds 70.

It should be noted that in the present application, the first end pin group 93 also has four conductive end legs, and the first position sensor 92 and the second position sensor 120 are respectively connected to the first end pin group 93 and the third end pin group 130. The four conductive terminals are connected.

For the first position sensor 92, the four conductive terminals respectively control the voltage of the VCC access circuit on the first position sensor 92, the working voltage inside the VDD device, that is, the working voltage of the chip, the SDA serial data line, and the SCL clock data line. . Thus, the movement of the bracket 40 is corrected.

For the second position sensor 120, the four conductive pins respectively control the voltage of the VCC access circuit on the second position sensor 120, the working voltage inside the VDD device, that is, the working voltage of the chip, the SDA serial data line, and the SCL clock data line. . As a result, the movement of the lens support 50 is corrected.

Specifically, the four conductive end pins of the third end pin group 130 are located in the same straight line. Through this arrangement, it can be ensured that the second connecting component 44 can be more easily connected to the third terminal pin group 130, and by this arrangement, the conductive terminals in the third terminal pin group 130 and the second connecting component 44 can also be prevented. There is a short-circuit phenomenon between the connected bodies 300.

Specifically, the fourth end leg group 140 includes a first communicating end leg 160 and a second communicating end leg 170, the axial reed 60 includes a first communicating reed 61 and a second communicating reed 62, and the third communicating assembly 150 includes The first communicating portion 180 and the second communicating portion 190, the first communicating end foot 160 and the first communicating reed 61 are electrically connected through the first communicating portion 180, and the second communicating end foot 170 and the second communicating reed 62 are electrically connected through the second The communication part 190 is electrically connected.

Optionally, the first communication end foot 160 and the second communication end foot 170 are located on the same straight line.

In a specific embodiment of the present application, the first communication end leg 160 and the second communication end leg 170 are respectively located on both sides of the third end leg group 130.

Specifically, the first communicating reed 61 and the second communicating reed 62 are respectively provided with solder holes 63, and the first communicating reed 61 and the second communicating reed 62 respectively pass through the windings of the soldering hole 63 and the lens support 50 The pillar 53 is welded to realize the electrical connection between the driving coil 82 and the fourth terminal set 140.

It should be noted that in the present application, only the first communication reed 61 and the second communication reed 62 of the axial reed 60 close to the first opening 11 are welded to the bobbin 53 of the lens support body 50, and are During the soldering process, solder paste is injected into the solder hole 63, and then laser spot welding is performed on the solder paste.

Specifically, the first communicating reed 61 and the second communicating reed 62 of the axial reed 60 away from the first opening 11 have the same structure.

Specifically, both ends of the first connecting reed 61 of the axial reed 60 close to the first opening 11 correspond to the same side of the bracket 40, and the second connecting of the axial reed 60 close to the first opening 11 The reed 62 has an inner structure and an outer structure, the bracket 40 is connected with the outer structure, the lens support 50 is connected with the inner structure, and at least a part of the inner structure and the outer structure are arranged opposite to each other. With this arrangement, the first communicating reed 61 and the second communicating reed 62 of the axial reed 60 close to the first opening 11 can be more easily connected to the first communicating end leg 160 and the second communicating end leg, respectively. 170 makes electrical connections.

From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

1. When the mobile phone adopts the optical zoom motor in this application, it can effectively increase the focal length of the camera module of the mobile phone;

2. Effectively improve the anti-shake performance of the optical zoom motor;

3. Simple structure and stable performance.

The above descriptions are only preferred embodiments of the application, and are not intended to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

An optical zoom motor, characterized in that it comprises:

A housing (10), the housing (10) has a first opening (11) for avoiding the lens (83);

A base (20), the base (20) is arranged below the housing (10) and forms an accommodation space between the base (20) and the housing (10);

A frame assembly (30), the frame assembly (30) is arranged in the accommodating space, and the frame assembly (30) has a second opening (31) for avoiding the lens (83);

A bracket (40), the bracket (40) is arranged inside the frame assembly (30), and the bracket (40) has a third opening (41) for avoiding the lens (83);

A lens support body (50), the lens support body (50) is arranged inside the bracket (40), and the bracket (40) is connected to the lens support body (50) through an axial spring (60) Connected to enable the lens support body (50) to carry the lens (83) relative to the bracket (40) to move in the axial direction of the lens (83);

The side reed (70), the frame assembly (30) is connected to the bracket (40) through the side reed (70), so that the bracket (40) can drive the lens support body ( 50) Move in a direction perpendicular to the axial direction of the lens (83);

A plurality of lateral coils (80), the lateral coils (80) provide power to the movement of the bracket (40);

A plurality of driving magnets (81), and a plurality of the driving magnets (81) are arranged corresponding to a plurality of the lateral coils (80);

A drive coil (82), the drive coil (82) is wound on the lens support (50) and is located in the magnetic field formed by the drive magnet (81).
The optical zoom motor of claim 1, wherein:

The housing (10) includes a top wall (12) and a circumferential side wall (13), the top wall (12) is arranged opposite to the base (20), and the top wall (12) passes through the circumference The facing side wall (13) is connected to the base (20), and one wall surface of the circumferential side wall (13) has the first opening (11); or

A set of opposite side walls of the frame assembly (30) has the second opening (31); or

The bracket (40) has the third opening (41) on a set of oppositely arranged side walls, and the first opening (11), the second opening (31), and the first The planes on which the three openings (41) are located are parallel to each other; or

The lens opening of the lens support (50) faces the first opening (11).
The optical zoom motor of claim 1, wherein:

At least one side coil (80) is provided on a set of opposite side walls of the frame assembly (30), and the side wall where the side coil (80) is located and the second opening ( 31) The side walls are adjacent to each other; or

A plurality of the driving magnets (81) are arranged on the bracket (40).
The optical zoom motor according to claim 1, wherein the frame assembly (30) comprises:

A frame (32), the second opening (31) is provided on the frame (32);

The flexible PCB board (33), the lateral coil (80) is arranged on the flexible PCB board (33), and at least a part of the flexible PCB board (33) is overlapped on the frame (32).
The optical zoom motor of claim 4, wherein:

The frame (32) is provided with a plurality of relief openings (321) at positions corresponding to the plurality of driving magnets (81); or

The frame (32) has an overlap groove (322) on one side facing the top wall (12) of the housing (10), and at least a part of the flexible PCB board (33) is arranged in the overlap groove (322). ); or

The outer surface of the frame (32) facing the side wall of the driving magnet (81) has a positioning groove (323), and at least a part of the flexible PCB board (33) is arranged in the positioning groove (323).
The optical zoom motor according to claim 1, wherein the side wall where the lateral coil (80) is located is perpendicular to the top wall (12) of the housing (10).
The optical zoom motor of claim 4, wherein:

The corners of the base (20) are provided with positioning protrusions (21) that cooperate with the frame (32); or

At least a part of the lateral coil (80) is arranged inside the flexible PCB board (33); or

The frame (32) is provided with positioning bumps (324) at the corners of one side facing the top wall (12) of the housing (10).
The optical zoom motor according to claim 1, wherein the side wall of the bracket (40) corresponding to the driving magnet (81) has an accommodating opening (42) for accommodating the driving magnet (81).
The optical zoom motor according to claim 1, wherein the lens support body (50) has a first limiting protrusion ( 51), the bracket (40) is provided with a limiting groove (43) that cooperates with the first limiting protrusion (51).
The optical zoom motor according to claim 1, wherein the lens support (50) has a second limiting protrusion (52) on a side away from the first opening (11), and the At least a part of the second limiting protrusion (52) extends out of the bracket (40) in a direction away from the first opening.
The optical zoom motor according to any one of claims 1 to 10, wherein the lateral coil (80) and the driving magnet (81) are both two, and the optical zoom motor further comprises:

Two sets of the lateral reeds (70), a set of the lateral reeds (70) is arranged between each of the lateral coils (80) and each of the driving magnets (81);

Two groups of the axial reeds (60), one group of the axial reeds (60) is arranged at one end of the lens support body (50) close to the first opening (11), and the other group is arranged at one end of the lens support body (50) close to the first opening (11). The axial reed (60) is arranged at one end of the lens support body (50) away from the first opening (11).
The optical zoom motor of claim 11, wherein the optical zoom motor further comprises:

The first PCB board (90), the first PCB board (90) is arranged on the side of the base (20) facing the frame assembly (30), and the first PCB board (90) is provided with The first capacitor (91), the first position sensor (92), the first end pin group (93) and the second end pin group (94), and the first position sensor (92) and the first end pin The group (93) is electrically connected, and the flexible PCB board (33) of the frame assembly (30) is electrically connected with the position sensor, so that the lateral coil (80) is electrically connected with the position sensor;

The second PCB board (100), the side of the bracket (40) facing the base (20) has a containing groove, and the

The second PCB board (100) is arranged on the accommodating groove, and a second capacitor (110) and a second position sensor (120) are arranged on the second PCB board (100).
The optical zoom motor of claim 12, wherein:

At least a part of the first capacitor (91) and at least a part of the first position sensor (92) respectively extend into the frame assembly (30); or

At least a part of the second capacitor (110) and at least a part of the second position sensor (120) respectively extend into the bracket (40).
The optical zoom motor of claim 12, wherein the optical zoom motor further comprises:

The first Hall magnet (200), the first Hall magnet (200) is arranged on the side of the bracket (40) facing the base (20), and the first position sensor (92) is connected to the base (20). The first Hall magnet (200) induction;

A second Hall magnet (210), the second Hall magnet (210) is arranged on a side of the lens support (50) close to the base (20), and the second position sensor (120) Induction with the second Hall magnet (210).
The optical zoom motor of claim 12, wherein the optical zoom motor further comprises:

The first communicating component (34), at least a part of the first communicating component (34) is arranged inside the frame (32) of the frame component (30), and one end of the first communicating component (34) is connected to The second terminal pin group (94) is electrically connected;

The second communication component (44), the second communication component (44) is arranged on the bracket (40), and one end of the second communication component (44) passes through a set of the lateral reeds (70). ) Is electrically connected to the other end of the first communication component (34), and the other end of the axial spring (60) is electrically connected to the second PCB board (100).
The optical zoom motor according to claim 15, wherein a third terminal set (130) is further provided on the second PCB board (100), and the second communication component (44) is connected to the The three-terminal pin group (130) is electrically connected, and the second position sensor (120) is electrically connected with the third terminal pin group (130).
The optical zoom motor according to claim 16, wherein the second PCB board (100) is further provided with:

A fourth end pin group (140), the fourth end pin group (140) is electrically connected to the second position sensor (120);

The third communicating component (150), the axial reed (60) near the first opening (11) is electrically connected to the fourth terminal leg group (140) through the third communicating component (150) connection.
The optical zoom motor according to claim 16, wherein the first communication component (34) and the second communication component (44) respectively comprise four communication bodies (300), and the second end leg Both the group (94) and the third terminal foot group (130) include four conductive terminal feet, the lateral reed (70) includes four sub-reeds (71), and the first communication component (34) The two ends of the four communicating bodies (300) are respectively connected to the four conductive end legs of the second end leg group (94) and the four sub-springs of the lateral reeds (70) The two ends of the four connecting bodies (300) of the second connecting assembly (44) are respectively connected to the four conductive end pins and the third end pin group (130) of the second connecting assembly (44). The four sub-reeds (71) of the lateral reeds (70) are connected.
The optical zoom motor according to claim 18, wherein the four conductive end legs of the third end leg group (130) are located on the same straight line.
The optical zoom motor according to claim 17, wherein the fourth end leg group (140) comprises a first communication end leg (160) and a second communication end leg (170), and the axial reed (60) includes a first communication reed (61) and a second communication reed (62), the third communication assembly (150) includes a first communication part (180) and a second communication part (190), the The first communicating end leg (160) and the first communicating reed (61) are electrically connected through the first communicating portion (180), and the second communicating end leg (170) and the second communicating reed (62) It is electrically connected through the second communication portion (190).
The optical zoom motor of claim 20, wherein:

The first connecting end leg (160) and the second connecting end leg (170) are located on the same straight line; or

The first connecting end leg (160) and the second connecting end leg (170) are respectively located on both sides of the third end leg group (130).
The optical zoom motor according to claim 20, wherein the first communication reed (61) and the second communication reed (62) are respectively provided with solder holes (63), and the first The connecting reed (61) and the second connecting reed (62) are respectively welded to the bobbin (53) of the lens support (50) through the solder hole (63) to realize the drive coil (82) Electrical connection with the fourth terminal pin group (140).
The optical zoom motor of claim 20, wherein:

The first communicating reed (61) and the second communicating reed (62) of the axial reed (60) far away from the first opening (11) have the same structure; or

Both ends of the first communicating reed (61) of the axial reed (60) close to the first opening (11) correspond to the same side of the bracket (40), close to the The second communicating reed (62) of the axial reed (60) of the first opening (11) has an inner structure and an outer structure, the bracket (40) is connected to the outer structure, and the The lens support (50) is connected to the inner structure, and at least a part of the inner structure and the outer structure are arranged opposite to each other.
An imaging device, characterized by comprising the optical zoom motor according to any one of claims 1 to 23.
A mobile terminal, characterized by comprising the camera device described in claim 24.