CN110989127A

CN110989127A - Optical zoom motor, image pickup device and mobile terminal

Info

Publication number: CN110989127A
Application number: CN201911419807.8A
Authority: CN
Inventors: 龚高峰; 王建华; 张�杰
Original assignee: Shanghai BL Electronics Co Ltd
Current assignee: Shanghai BL Electronics Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-04-10
Also published as: WO2021135185A1

Abstract

The invention provides an optical zoom motor, an image pickup device and a mobile terminal. The optical zoom motor includes: a housing having a first opening for avoiding a lens; the base is arranged below the shell and forms an accommodating space with the shell; a frame assembly having a second opening for avoiding the lens; the bracket is provided with a third opening part for avoiding the lens; a lens support body disposed inside the holder; the frame assembly is connected with the support through the lateral spring, so that the support can drive the lens support to move in the direction perpendicular to the axial direction of the lens; a plurality of lateral coils; a plurality of drive magnets; and the driving coil is wound on the lens support body and is positioned in a magnetic field formed by the driving magnet. The invention solves the problem of poor use performance of the optical zoom motor in the prior art.

Description

Optical zoom motor, image pickup device and mobile terminal

Technical Field

The invention relates to the field of periscopic focusing devices, in particular to an optical zoom motor, an image pickup device and a mobile terminal.

Background

In recent years, with market demands, a mobile phone camera has requirements of high pixel, large aperture and ultra-thin type for meeting new development trend.

The existing automatic focusing device is formed by accumulating the heights of a voice coil motor, a lens, an image sensor and a circuit board, and the bottleneck appears in the use of products in the prior art due to the improvement of mobile phone pixels and the requirement of thinner and thinner product heights. The overall optical height of the large aperture and high pixel lens is relatively high, so that the existing accumulated product height cannot meet the requirement of an ultrathin mobile phone body. Meanwhile, the assembly of the image sensor is deviated, so that the light center and the image sensor center cannot coincide, the imaging quality of the image sensor is influenced, and the final output picture cannot achieve the optimal effect.

Due to the limitation of the thickness of the mobile phone, the camera of the mobile phone which is vertically placed conventionally (i.e. towards the outside on the surface of the mobile phone) has a small focal length and limited optical zooming capability. The periscopic camera is different from the vertical arrangement mode of the traditional lens, is transversely arranged in the mobile phone, is additionally provided with an optical conversion component, comprises an optical zoom motor, a lens group, a prism and the like, and realizes imaging by refracting light into the lens group by using a special optical prism, thereby achieving higher optical zoom times and enabling the lens to clearly shoot more distant scenes. The periscopic structure has good application prospect when being applied to the smart phone.

The invention aims to design an optical zoom motor with a periscopic function, and finally realize that the motor is arranged on a mobile phone in parallel by matching with the function assistance of a prism part, so that the height of the mobile phone is further greatly reduced, and the effects of an ultrathin body and high-quality optical zoom imaging are realized.

Disclosure of Invention

The invention mainly aims to provide an optical zoom motor, an image pickup device and a mobile terminal, so as to solve the problem that the optical zoom motor in the prior art is poor in use performance.

In order to achieve the above object, according to one aspect of the present invention, there is provided an optical zoom motor including: a housing having a first opening for avoiding a lens; the base is arranged below the shell and forms an accommodating space with the shell; the frame assembly is arranged in the accommodating space and is provided with a second opening part for avoiding the lens; the bracket is arranged inside the frame assembly and is provided with a third opening part for avoiding the lens; the lens support body is arranged in the support, and the support is connected with the lens support body through an axial reed so that the lens support body can bear the lens to move in the axial direction of the lens relative to the support; the frame assembly is connected with the support through the lateral spring, so that the support can drive the lens support to move in the direction perpendicular to the axial direction of the lens; a plurality of lateral coils that power movement of the stent; a plurality of driving magnets arranged corresponding to the plurality of lateral coils; and the driving coil is wound on the lens support body and is positioned in a magnetic field formed by the driving magnet.

Furthermore, the shell comprises a top wall and a circumferential side wall, the top wall is arranged opposite to the base and is connected with the base through the circumferential side wall, and a first opening part is arranged on one wall surface of the circumferential side wall; and/or a set of oppositely arranged side walls of the frame component are provided with second opening parts; and/or a group of oppositely arranged side walls of the bracket are provided with third opening parts, and planes of the first opening part, the second opening part and the third opening part are parallel to each other; and/or the lens opening of the lens support faces the first opening.

Furthermore, at least one lateral coil is respectively arranged on a group of oppositely arranged side walls of the frame assembly, and the side wall where the lateral coil is arranged is adjacent to the side wall where the second opening part is arranged; and/or a plurality of driving magnets are arranged on the bracket.

Further, the frame assembly includes: a frame, wherein the second opening part is arranged on the frame; the lateral coil is arranged on the flexible PCB, and at least one part of the flexible PCB is lapped on the frame.

Furthermore, a plurality of abdicating openings are arranged at the positions of the frame corresponding to the plurality of driving magnets; and/or one side of the frame facing the top wall of the shell is provided with a lapping groove, and at least one part of the flexible PCB is arranged in the lapping groove; and/or the outer surface of the side wall of the frame facing the drive magnet is provided with a positioning groove, and at least one part of the flexible PCB is arranged in the positioning groove.

Further, the side wall where the lateral coil is located is perpendicular to the top wall of the housing.

Furthermore, a positioning bulge matched with the frame is arranged at the corner of the base; and/or at least a portion of the lateral coil is disposed inside the flexible PCB; and/or the frame has positioning lugs at the corners of the side facing the top wall of the casing.

Furthermore, the side wall of the bracket corresponding to the driving magnet is provided with an accommodating opening for accommodating the driving magnet.

Furthermore, one side of the lens support body facing the first opening portion is provided with a first limiting bulge extending along the radial direction, and the support is provided with a limiting groove matched with the first limiting bulge.

Furthermore, one side of the lens support body, which is far away from the first opening part, is provided with a second limiting bulge, and at least one part of the second limiting bulge extends out of the support towards the direction far away from the first opening part.

Further, the lateral coil and the driving magnet are both two, and the optical zoom motor further includes: a group of lateral reeds are arranged between each lateral coil and each driving magnet; and one group of axial reeds are arranged at one end of the lens supporting body close to the first opening part, and the other group of axial reeds are arranged at one end of the lens supporting body far away from the first opening part.

Further, the optical zoom motor further includes: the first PCB is arranged on one side, facing the frame assembly, of the base, and is provided with a first capacitor, a first position sensor, a first end pin group and a second end pin group; and one side of the support facing the base is provided with a containing groove, the second PCB is arranged on the containing groove, and the second PCB is provided with a second capacitor and a second position sensor.

Further, at least a portion of the first capacitor and at least a portion of the first position sensor each extend into the frame assembly; and/or at least a portion of the second capacitance and at least a portion of the second position sensor each extend into the support.

Further, the optical zoom motor further includes: the first Hall magnet is arranged on one side of the support facing the base, and the first position sensor is induced with the first Hall magnet; the second Hall magnet is arranged on one side, close to the base, of the lens supporting body, and the second position sensor and the second Hall magnet are used for sensing.

Further, the optical zoom motor further includes: at least one part of the first communicating component is arranged inside the frame of the frame component, and one end of the first communicating component is electrically connected with the second end pin group; and the second communication assembly is arranged on the support, one end of the second communication assembly is electrically connected with the other end of the first communication assembly through a group of lateral reeds, and the other end of the axial reed is electrically connected with the second PCB.

Furthermore, a third terminal pin group is further arranged on the second PCB, the second communicating component is electrically connected with the third terminal pin group, and the second position sensor is electrically connected with the third terminal pin group.

Further, still be provided with on the second PCB board: the fourth pin group is electrically connected with the second position sensor; and the axial reed close to the first opening part is electrically connected with the fourth pin group through the third communication component.

Further, the first communicating component and the second communicating component respectively comprise four communicating bodies, the second end pin group and the third end pin group respectively comprise four conductive end pins, the lateral reed comprises four sub-reeds, two ends of the four communicating bodies of the first communicating component are respectively connected with the four conductive end pins of the second end pin group and the four sub-reeds of the lateral reed, and two ends of the four communicating bodies of the second communicating component are respectively connected with the four conductive end pins of the third end pin group and the four sub-reeds of the lateral reed.

Furthermore, the four conductive terminal pins of the third terminal pin group are located on the same straight line.

Further, fourth end foot group includes first intercommunication end foot and second intercommunication end foot, and the axial reed includes first intercommunication reed and second intercommunication reed, and third intercommunication subassembly includes first intercommunication portion and second intercommunication portion, and first intercommunication end foot and first intercommunication reed are connected through first intercommunication portion electricity, and second intercommunication end foot and second intercommunication reed are connected through second intercommunication portion electricity.

Further, the first communicating end pin and the second communicating end pin are positioned on the same straight line; and/or the first communicating end pin and the second communicating end pin are respectively positioned at two sides of the third end pin group.

Furthermore, the first communication reed and the second communication reed are respectively provided with a soldering tin hole, and the first communication reed and the second communication reed are respectively welded with the winding posts of the lens support body through the soldering tin holes so as to realize the electric connection of the driving coil and the fourth terminal pin group.

Further, the first communication reed and the second communication reed of the axial reed far away from the first opening part have the same structure; and/or both ends of the first communication reed of the axial reed close to the first opening part correspond to the same side of the support, the second communication reed of the axial reed close to the first opening part has an inner side structure and an outer side structure, the support is connected with the outer side structure, the lens support body is connected with the inner side structure, and at least one part of the inner side structure and at least one part of the outer side structure are arranged oppositely.

According to another aspect of the present invention, there is provided an image pickup apparatus including the optical zoom motor described above.

According to another aspect of the present invention, there is provided a mobile terminal including the above-described image pickup device.

By applying the technical scheme of the invention, the optical zoom motor comprises a shell, a base, a frame assembly, a bracket, a lens supporting body, a lateral reed, a plurality of lateral coils, a plurality of driving magnets and a driving coil. The shell is provided with a first opening part for avoiding the lens; the base is arranged below the shell and forms an accommodating space with the shell; the frame assembly is arranged in the accommodating space and is provided with a second opening part for avoiding the lens; the bracket is arranged in the frame assembly and is provided with a third opening part for avoiding the lens; the lens supporting body is arranged in the support, and the support is connected with the lens supporting body through an axial reed, so that the lens supporting body can bear the lens to move in the axial direction of the lens relative to the support; the frame assembly is connected with the support through the lateral spring plate so that the support can drive the lens support body to move in the direction perpendicular to the axial direction of the lens; the lateral coil provides power for the movement of the bracket; the plurality of driving magnets are arranged corresponding to the plurality of lateral coils; the driving coil is wound on the lens support and is positioned in a magnetic field formed by the driving magnet.

When the optical zoom motor with the structure is used, the lens supporting body can move relative to the bracket through the interaction of the driving magnet and the driving coil, so that the focusing function of the optical zoom motor is realized. And because the lateral coil is arranged, the lens supporting body can act relative to the frame component along with the support through the interaction of the lateral coil and the driving magnet, thereby effectively ensuring the anti-shake performance of the optical zoom motor. Therefore, through using the optical zoom motor in this application, can guarantee that the image of shooing is more clear, and then has solved the poor problem of optical zoom motor performance among the prior art effectively.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

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

fig. 2 illustrates a schematic structural view of a first PCB board of the optical zoom motor of fig. 1;

fig. 3 illustrates a schematic structural view of a second PCB board of the optical zoom motor of fig. 1;

fig. 4 is a schematic diagram illustrating a positional relationship between a bracket of the optical zoom motor and a second PCB in the present application;

fig. 5 is a schematic view showing a positional relationship between a holder of the optical zoom motor and a first hall magnet in the present application;

fig. 6 is a schematic view showing a positional relationship between a lens support body of the optical zoom motor and a second hall magnet in the present application;

fig. 7 is a schematic view showing a positional relationship between a base of an optical zoom motor and a first PCB in the present application;

FIG. 8 is a schematic view showing the positional relationship between the frame assembly and the base of the optical zoom motor of the present application;

fig. 9 is a schematic view showing a positional relationship between a holder of an optical zoom motor and a lens support body in the present application;

fig. 10 is a schematic view showing a positional relationship between a lens support body and an axial reed of an optical zoom motor in the present application;

fig. 11 is a schematic diagram showing a positional relationship among the lens support body, the holder, and the axial reed of the optical zoom motor in the present application.

Wherein the figures include the following reference numerals:

10. a housing; 11. a first opening portion; 12. a top wall; 13. a circumferential sidewall; 20. a base; 21. positioning the projection; 30. a frame assembly; 31. a second opening portion; 32. a frame; 321. a abdication opening is formed; 322. a lap joint groove; 323. positioning a groove; 324. positioning the bump; 33. a flexible PCB board; 34. a first communication assembly; 40. a support; 41. a third opening section; 42. an accommodation opening; 43. a limiting groove; 44. a second communicating member; 50. a lens support; 51. a first limit protrusion; 52. a second limit bulge; 53. a winding post; 60. an axial reed; 61. a first communication reed; 62. a second communication reed; 63. soldering tin holes; 70. a lateral reed; 71. a sub-reed; 80. a lateral coil; 81. a drive magnet; 82. a drive coil; 83. a lens; 90. a first PCB board; 91. a first capacitor; 92. a first position sensor; 93. a first terminal pin group; 94. a second terminal pin group; 100. a second PCB board; 110. a second capacitor; 120. a second position sensor; 130. a third terminal group; 140. a fourth pin group; 150. a third communicating component; 160. a first communicating terminal pin; 170. a second communicating terminal pin; 180. a first communicating portion; 190. a second communicating portion; 200. a first Hall magnet; 210. a second Hall magnet; 300. a communicating body.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like, generally refer to the orientation as shown in the drawings, or to the component itself in a vertical, perpendicular, or gravitational orientation; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

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

Wherein the mobile terminal comprises a camera device. The image pickup apparatus includes an optical zoom motor described below.

It should be noted that the camera device in the present application includes, but is not limited to, a smartphone having a photographing function. Moreover, when the optical zoom motor is used on the smart phone, the use performance of a camera module of the smart phone can be improved, the overall thickness of the smart phone can be effectively reduced, and the problem that a rear camera of the smart phone protrudes outwards can be effectively solved, namely the problem that the rear camera of the smart phone protrudes out of a rear shell of the smart phone is solved.

It should be noted that the camera device in the present application can be applied to the field of miniature image photographing, such as tablet, computer, automotive electronics, and the like, in addition to the field of mobile phones.

As shown in fig. 1 to 11, the optical zoom motor in the present application includes a housing 10, a base 20, a frame assembly 30, a bracket 40, a lens support body 50, a lateral spring 70, a plurality of lateral coils 80, a plurality of driving magnets 81, and a driving coil 82. The housing 10 has a first opening 11 for avoiding the lens 83; the base 20 is arranged below the shell 10 and forms an accommodating space with the shell 10; the frame assembly 30 is arranged in the accommodating space, and the frame assembly 30 is provided with a second opening part 31 for avoiding the lens 83; the holder 40 is disposed inside the frame assembly 30, the holder 40 having a third opening 41 for avoiding the lens 83; the lens support 50 is arranged inside the bracket 40, and the bracket 40 is connected with the lens support 50 through the 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 with the bracket 40 through a lateral spring 70, so that the bracket 40 can drive the lens support body 50 to move in a direction perpendicular to the axial direction of the lens 83; the lateral coils 80 power the movement of the support 40; a plurality of driving magnets 81 provided corresponding to the plurality of side coils 80; the driving coil 82 is wound around the lens support 50 and is located within the magnetic field formed by the driving magnet 81.

When the optical zoom motor having the above-described structure is used, the lens support body 50 can be moved relative to the holder 40 by the interaction between the driving magnet 81 and the driving coil 82, thereby realizing the focusing function of the optical zoom motor. Since the lateral coil 80 is further provided, the lens support body 50 can be acted on the frame assembly 30 together with the holder 40 by the interaction between the lateral coil 80 and the driving magnet 81, thereby effectively ensuring the anti-shake performance of the optical zoom motor. Therefore, through using the optical zoom motor in this application, can guarantee that the image of shooing is more clear, and then has solved the poor problem of optical zoom motor performance among the prior art effectively.

When current is applied to the driving coil 82, electromagnetic force is generated between the driving coil 82 and the driving magnet 81, and according to the fleming's left-hand rule, the lens support 50 is driven to move linearly along the optical axis of the lens 83 by the electromagnetic force, and the lens support 50 finally stays at a position where the resultant force of the electromagnetic force generated between the driving coil 82 and the driving magnet 81 and the elastic force of the axial spring reaches a balanced state. By applying a predetermined current to the driving coil 82, the lens holder 50 can be controlled to move to a target position, thereby achieving the purpose of focusing.

When the optical zoom motor of the present application is used in a mobile phone having a photographing function, it is necessary to pay special attention to the mounting direction of the optical zoom motor. When the optical zoom motor is used, the moving direction of the lens support 50 is parallel to the rear case of the mobile phone or the screen of the mobile phone when the lens support 50 is driven to focus. At this time, in order to ensure normal use of the camera module of the mobile phone, in an actual shooting process, the prism motor and the prism system are used together while the optical zoom motor in the present application is needed, that is, a driving system for lighting the prism is added at the end of the lens 83 by one degree. The structure is characterized in that the incident plane of the prism motor is parallel to the rear shell of the mobile phone or the screen of the mobile phone and can collect a target to be shot, and the reflecting plane of the prism motor is aligned with the opening part of the shielding cover, namely the lens 83. The specific implementation 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 by reflection from the prism, thus creating an equivalent focal length longer than the vertical mounting direction of a conventional camera, i.e. towards the outside on the surface of the phone.

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, 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 a first opening 11. In the present application, by providing such an arrangement, the lens support body 50 can be moved in a direction toward or away from the first opening 11 when the optical zoom motor is focusing.

Specifically, a set of oppositely disposed sidewalls of the frame assembly 30 has a second opening portion 31 therein.

Specifically, a set of oppositely disposed side walls of the bracket 40 has a third opening 41, and planes of the first opening 11, the second opening 31 and the third opening 41 are parallel to each other. The movement of the lens support 50 can be avoided by providing the third opening 41.

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

Specifically, at least one lateral coil 80 is disposed on a set of opposite 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. By such an arrangement, the lateral coil 80 and the driving magnet 81 can be ensured to be induced, thereby realizing the anti-shake function of the optical zoom motor.

Specifically, a plurality of drive magnets 81 are provided on the carriage 40. With this arrangement, it can be effectively ensured that the support 40 can move together with the driving magnet 81 when the side coil 80 is acted on the driving magnet 81, so that the stability between the support 40 and the lens support 50 can be ensured. Further, when the driving coil 82 and the driving magnet 81 act, the lens support body 50 can be ensured to move relative to the holder 40.

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

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

Alternatively, the lateral coil 80 is embedded inside 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. By so setting, the induction effect between the drive magnet 81 and the side coils 80 can be effectively enhanced, and the occurrence of a collision between the frame 32 and the drive magnet 81 can also be effectively prevented. And, through setting up like this, can also guarantee that the inner structure of optical zoom motor is compacter, and whole weight is lighter.

Specifically, the frame 32 has a lap groove 322 on a side thereof facing the top wall 12 of the housing 10, and at least a portion of the flexible PCB 33 is disposed in the lap groove 322.

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

By so arranging, it is possible to ensure a more compact connection between the frame 32 and the flexible PCB 33, and it is possible to effectively prevent relative movement between the flexible PCB 33 and the frame 32, thereby ensuring stability between the frame 32 and the flexible PCB 33.

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 base 20 is provided at a corner thereof with a positioning projection 21 fitted with the frame 32. With this arrangement, the positioning of the frame 32 by the positioning projection 21 can be performed, 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 portion of the lateral coil 80 is disposed inside the flexible PCB 33.

Specifically, the frame 32 has positioning projections 324 at the corners of the side facing the top wall 12 of the housing 10. By so arranging, stability between the frame 32 and the casing 10 can be effectively ensured, and occurrence of collision between the casing 10 and the frame 32 can be avoided.

Specifically, the holder 40 has an accommodating opening 42 in a side wall corresponding to the drive magnet 81 for accommodating the drive magnet 81. By this arrangement, it is possible to secure the induction effect between the drive magnet 81 and the drive coil 82, and to make the entire structure of the optical zoom motor more compact.

Specifically, the lens support 50 has a first limiting protrusion 51 protruding in the radial direction on a side facing the first opening 11, and the holder 40 is provided with a limiting groove 43 engaged with the first limiting protrusion 51. With this arrangement, when the driving coil 82 and the driving magnet 81 mutually induce and move the lens support 50 relative to the holder 40, the movement of the lens support 50 can be restricted by the engagement of the first restricting projection 51 and the restricting groove 43.

Specifically, the lens support 50 has a second limiting protrusion 52 on a side away from the first opening 11, and at least a portion of the second limiting protrusion 52 extends out of the bracket 40 toward a direction away from the first opening. By such an arrangement, the lens 83 in the lens support body 50 can be effectively limited, and stability between the lens support body 50 and the lens 83 can be ensured.

In one embodiment of the present application, the lateral coil 80 and the driving magnet 81 are two, and the optical zoom motor further includes two sets of lateral springs 70 and two sets of axial springs 60. A group of lateral reeds 70 are arranged between each lateral coil 80 and each driving magnet 81; one set of axial reeds 60 is provided at an end of the lens support 50 close to the first opening 11, and the other set of axial reeds 60 is provided at an end of the lens support 50 far 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. By providing two sets of axial springs 60, the stability of the connection between the holder 40 and the lens support 50 can be effectively ensured.

Specifically, the optical zoom motor further includes a first PCB 90 and a second PCB 100. The first PCB 90 is disposed on a side of the base 20 facing the frame assembly 30, and the first PCB 90 is disposed with a first capacitor 91, a first position sensor 92, a first terminal pin group 93 and a second terminal pin group 94, the first position sensor 92 is electrically connected to the first terminal pin group 93, and the flexible PCB 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 side of the bracket 40 facing the base 20 has a receiving groove, the second PCB 100 is disposed on the receiving groove, and the second PCB 100 is disposed with the second capacitor 110 and the second position sensor 120. Since the first PCB 90 has the first and second

terminal pin groups

93 and 94, the optical zoom motor can be electrically connected to the outside through the first and second

terminal pin groups

93 and 94. The position of the bracket 40 is sensed by the first position sensor 92, so that the current entering the lateral coil 80 is controlled, and the lateral coil 80 is sensed with the driving magnet 81 to achieve the anti-shake purpose. The second position sensor 120 is provided to sense the position of the lens support 50, thereby controlling the current flowing into the driving coil 82 and realizing the focusing function of the optical zoom motor.

Specifically, at least a portion of the first capacitor 91 and at least a portion of the first position sensor 92 each extend into the frame assembly 30. By means of the arrangement, the first PCB 90 can be effectively ensured to be more attached to the frame 32 and the bottom plate, and therefore the whole structure of the optical zoom motor is ensured to be more compact.

Specifically, at least a portion of the second capacitor 110 and at least a portion of the second position sensor 120 each extend into the support 40. By this arrangement, it is possible to effectively ensure a more compact connection between the second PCB 100 and the bracket 40.

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 one 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 one side of the lens support 50 close to the base 20, and the second position sensor 120 senses the second hall magnet 210. With this arrangement, when the lateral coil 80 induces the driving magnet 81 and moves the support 40 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 second position sensor 120 is coupled to the second hall magnet 210, so that the optical zoom motor can be focused more accurately.

Moreover, in the present application, the OIS anti-shake function is achieved by providing the first PCB 90, and the closed-loop driving of the lens support body 50 is achieved by providing the second PCB 100, so that the fast and accurate performance of the optical zoom motor is ensured.

Specifically, the optical zoom motor further includes a first communication assembly 34 and a second communication assembly 44. At least a portion of the first communicating member 34 is disposed inside the frame 32 of the frame member 30, and one end of the first communicating member 34 is electrically connected to the second terminal pin set 94; the second communicating member 44 is disposed on the bracket 40, and one end of the second communicating member 44 is electrically connected to the other end of the first communicating member 34 through a set of lateral springs 70, and the other end of the axial spring 60 is electrically connected to the second PCB 100.

In one embodiment of the present application, the first communication assembly 34 is integrally molded within the frame 32 in an INSERT-MOLDING manner.

Specifically, the second PCB 100 is further provided with a third terminal set 130, the second communicating component 44 is electrically connected to the third terminal set 130, and the second position sensor 120 is electrically connected to the third terminal set 130.

Specifically, the second PCB 100 is further provided with a fourth pin group 140, and the fourth pin group 140 is electrically connected to the second position sensor 120; third communication member 150, axial reed 60 near first opening 11 is electrically connected to fourth pin group 140 through third communication member 150.

Specifically, the first communicating component 34 and the second communicating component 44 respectively include four communicating bodies 300, the second end pin group 94 and the third end pin group 130 both include four conductive end pins, the lateral reed 70 includes four sub-reeds 71, two ends of the four communicating bodies 300 of the first communicating component 34 are respectively connected with the four conductive end pins of the second end pin group 94 and the four sub-reeds 71 of the lateral reed 70, and two ends of the four communicating bodies 300 of the second communicating component 44 are respectively connected with the four conductive end pins of the third end pin group 130 and the four sub-reeds 71 of the lateral reed 70.

It should be noted that, in the present application, the first terminal pin set 93 also has four conductive terminal pins, and the first position sensor 92 and the second position sensor 120 are respectively connected to the four conductive terminal pins of the first terminal pin set 93 and the third terminal pin set 130.

For the first position sensor 92, the four conductive pins respectively control the voltage of the VCC access circuit on the first position sensor 92, the operating voltage inside the VDD device, i.e., the operating voltage of the chip, the SDA serial data line, and the SCL clock data line. Thereby compensating for the movement of the support 40.

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 operating voltage inside the VDD device, i.e., the operating voltage of the chip, the SDA serial data line, and the SCL clock data line. Thereby compensating for the movement of the lens support 50.

Specifically, the four conductive terminal pins of the third terminal pin group 130 are located on the same straight line. By such a configuration, the second communicating member 44 can be more easily point-connected to the third terminal pin group 130, and by such a configuration, a short circuit phenomenon between the conductive terminal pin of the third terminal pin group 130 and the communicating body 300 of the second communicating member 44 can be prevented.

Specifically, fourth terminal pin group 140 includes first and second communication terminal pins 160 and 170, axial reed 60 includes first and

second communication reeds

61 and 62, third communication assembly 150 includes first and

second communication portions

180 and 190, first communication terminal pin 160 and first communication reed 61 are electrically connected through first communication portion 180, and second communication terminal pin 170 and second communication reed 62 are electrically connected through second communication portion 190.

Optionally, the first communicating stub 160 and the second communicating stub 170 are located on the same straight line.

In one embodiment of the present application, the first communicating terminal pin 160 and the second communicating terminal pin 170 are located on both sides of the third terminal pin group 130.

Specifically, the first communication spring 61 and the second communication spring 62 are respectively provided with solder holes 63, and the first communication spring 61 and the second communication spring 62 are respectively welded to the winding posts 53 of the lens support body 50 through the solder holes 63, so as to electrically connect the driving coil 82 to the fourth pin group 140.

In the present invention, only the first communication spring piece 61 and the second communication spring piece 62 close to the axial spring piece 60 of the first opening 11 are welded to the winding post 53 of the lens support body 50, and during the welding, solder paste is first injected into the solder hole 63, and then laser spot welding is performed on the solder paste.

Specifically, first communication reed 61 and second communication reed 62 of axial reed 60 distant from first opening portion 11 are identical in structure.

Specifically, both ends of first communication reed 61 of axial reed 60 near first opening part 11 correspond to the same side of holder 40, second communication reed 62 of axial reed 60 near first opening part 11 has an inner structure and an outer structure, holder 40 is connected to the outer structure, lens support body 50 is connected to the inner structure, and at least a part of the inner structure and the outer structure are disposed opposite to each other. By providing such a configuration, the first communication reed 61 and the second communication reed 62 of the axial reed 60 close to the first opening 11 can be electrically connected to the first communication terminal pin 160 and the second communication terminal pin 170, respectively, more easily.

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

1. when the mobile phone adopts the optical zoom motor, the focal length of the camera module of the mobile phone can be effectively improved;

2. the anti-shake performance of the optical zoom motor is effectively improved;

3. simple structure and stable performance.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An optical zoom motor, comprising:

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

the base (20) is arranged below the shell (10) and forms an accommodating space with the shell (10);

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

a bracket (40), the bracket (40) being disposed inside the frame assembly (30), the bracket (40) having a third opening (41) for avoiding the lens (83);

a lens support body (50), wherein the lens support body (50) is arranged inside the bracket (40), and the bracket (40) is connected with the lens support body (50) through an axial reed (60) so that the lens support body (50) can carry the lens (83) to move relative to the bracket (40) in the axial direction of the lens (83);

a lateral spring (70), through which the frame assembly (30) is connected to the bracket (40) so that the bracket (40) can bring the lens support (50) to move in a direction perpendicular to the axial direction of the lens (83);

a plurality of lateral coils (80), the lateral coils (80) powering movement of the support (40);

a plurality of drive magnets (81), the plurality of drive magnets (81) being provided corresponding to the plurality of lateral coils (80);

and a drive coil (82), wherein the drive coil (82) is wound on the lens support body (50) and is positioned in a magnetic field formed by the drive magnet (81).

2. Optical zoom motor according to claim 1,

the shell (10) comprises a top wall (12) and a circumferential side wall (13), the top wall (12) is arranged opposite to the base (20), the top wall (12) is connected with the base (20) through the circumferential side wall (13), and one wall surface of the circumferential side wall (13) is provided with the first opening part (11); and/or

The frame component (30) is provided with a second opening part (31) on a group of oppositely arranged side walls; and/or

The third opening part (41) is arranged on one group of opposite side walls of the support (40), and planes where the first opening part (11), the second opening part (31) and the third opening part (41) are located are parallel to each other; and/or

The lens opening of the lens support (50) faces the first opening (11).

3. Optical zoom motor according to claim 1,

at least one lateral coil (80) is arranged on a group of oppositely arranged side walls of the frame assembly (30), and the side wall where the lateral coil (80) is located is adjacent to the side wall where the second opening part (31) is located; and/or

The plurality of drive magnets (81) are provided on the holder (40).

4. Optical zoom motor according to claim 1, characterized in that the frame assembly (30) comprises:

a frame (32), wherein the second opening (31) is provided in the frame (32);

a flexible PCB (33), the lateral coil (80) being disposed on the flexible PCB (33), and at least a portion of the flexible PCB (33) being lapped on the frame (32).

5. Optical zoom motor according to claim 4,

a plurality of abdicating openings (321) are formed in the positions, corresponding to the driving magnets (81), of the frame (32); and/or

The side of the frame (32) facing the top wall (12) of the housing (10) has a lap joint groove (322), and at least a part of the flexible PCB (33) is arranged in the lap joint groove (322); and/or

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

6. Optical zoom motor according to claim 1, characterized in that the side wall where the lateral coils (80) are located is perpendicular to the top wall (12) of the housing (10).

7. Optical zoom motor according to claim 4,

a positioning bulge (21) matched with the frame (32) is arranged at the corner of the base (20); 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 projection (324) at a corner portion of a side thereof facing the top wall (12) of the housing (10).

8. The optical zoom motor according to claim 1, wherein a side wall of the holder (40) corresponding to the drive magnet (81) has a receiving opening (42) for receiving the drive magnet (81).

9. The optical zoom motor of claim 1, wherein a side of the lens support body (50) facing the first opening portion (11) has a first stopper protrusion (51) protruding in a radial direction, and the holder (40) is provided with a stopper groove (43) engaged with the first stopper protrusion (51).

10. The optical zoom motor according to claim 1, wherein a side of the lens support body (50) away from the first opening portion (11) has a second stopper protrusion (52), and at least a part of the second stopper protrusion (52) protrudes out of the holder (40) toward a direction away from the first opening.

11. 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, the optical zoom motor further comprising:

two groups of lateral spring plates (70), wherein one group of lateral spring plates (70) is arranged between each lateral coil (80) and each driving magnet (81);

and two sets of axial reeds (60), wherein one set of axial reeds (60) is arranged at one end of the lens support body (50) close to the first opening part (11), and the other set of axial reeds (60) is arranged at one end of the lens support body (50) far away from the first opening part (11).

12. The optical zoom motor of claim 11, further comprising:

the first PCB (90) is arranged on one side, facing the frame assembly (30), of the base (20), and a first capacitor (91), a first position sensor (92), a first end pin group (93) and a second end pin group (94) are arranged on the first PCB (90), the first position sensor (92) is electrically connected with the first end pin group (93), and a flexible PCB (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 PCB comprises a second PCB (100), wherein a containing groove is formed in one side, facing the base (20), of the support (40), the second PCB (100) is arranged on the containing groove, and a second capacitor (110) and a second position sensor (120) are arranged on the second PCB (100).

13. Optical zoom motor according to claim 12,

at least a portion of the first capacitor (91) and at least a portion of the first position sensor (92) each 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) each extend into the support (40).

14. The optical zoom motor of claim 12, further comprising:

the first Hall magnet (200), the first Hall magnet (200) is arranged on one side of the bracket (40) facing the base (20), and the first position sensor (92) is induced with the first Hall magnet (200);

the second Hall magnet (210), second Hall magnet (210) set up lens support body (50) are close to one side of base (20), just second position sensor (120) with second Hall magnet (210) response.

15. The optical zoom motor of claim 12, further comprising:

a first communication assembly (34), at least a portion of the first communication assembly (34) being disposed inside a frame (32) of the frame assembly (30), and one end of the first communication assembly (34) being electrically connected to the second set of end pins (94);

a second communication component (44), wherein the second communication component (44) is arranged on the bracket (40), one end of the second communication component (44) is electrically connected with the other end of the first communication component (34) through a group of lateral reeds (70), and the other end of the axial reed (60) is electrically connected with the second PCB (100).

16. The optical zoom motor of claim 15, wherein a third terminal set (130) is further disposed on the second PCB (100), the second communicating member (44) is electrically connected to the third terminal set (130), and the second position sensor (120) is electrically connected to the third terminal set (130).

17. The optical zoom motor of claim 16, wherein the second PCB board (100) further has disposed thereon:

a fourth set of pins (140), the fourth set of pins (140) being electrically connected to the second position sensor (120);

a third communication member (150), said axial reed (60) adjacent to said first opening (11) being electrically connected to said fourth pin group (140) through said third communication member (150).

18. The optical zoom motor of claim 16, wherein the first communicating member (34) and the second communicating member (44) respectively comprise four communicating bodies (300), the second terminal group (94) and the third terminal group (130) each comprise four conductive terminal pins, the lateral spring (70) comprises four sub-springs (71), two ends of the four communicating bodies (300) of the first communicating member (34) are respectively connected with the four conductive terminal pins of the second terminal group (94) and the four sub-springs (71) of the lateral spring (70), and two ends of the four communicating bodies (300) of the second communicating member (44) are respectively connected with the four conductive terminal pins of the third terminal group (130) and the four sub-springs (71) of the lateral spring (70).

19. Optical zoom motor according to claim 18, wherein the four electrically conductive terminal pins of the third terminal pin group (130) are located in a same straight line.

20. The optical zoom motor according to claim 17, wherein the fourth pin group (140) includes a first communication pin (160) and a second communication pin (170), 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 first communication pin (160) and the first communication reed (61) are electrically connected through the first communication part (180), and the second communication pin (170) and the second communication reed (62) are electrically connected through the second communication part (190).

21. Optical zoom motor according to claim 20,

the first communicating terminal pin (160) and the second communicating terminal pin (170) are positioned on the same straight line; and/or

The first communicating terminal pin (160) and the second communicating terminal pin (170) are respectively positioned at two sides of the third terminal pin group (130).

22. 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 communication reed (61) and the second communication reed (62) are respectively soldered to the winding posts (53) of the lens support body (50) through the solder holes (63) to electrically connect the driving coil (82) and the fourth terminal group (140).

23. Optical zoom motor according to claim 20,

the first communication reed (61) and the second communication reed (62) of the axial reed (60) that is apart from the first opening portion (11) are identical in structure; and/or

The two ends of the first communication reed (61) of the axial reed (60) close to the first opening part (11) correspond to the same side of the support (40), the second communication reed (62) of the axial reed (60) close to the first opening part (11) has an inner side structure and an outer side structure, the support (40) is connected with the outer side structure, the lens support body (50) is connected with the inner side structure, and at least one part of the inner side structure and at least one part of the outer side structure are arranged oppositely.

24. An image pickup apparatus comprising the optical zoom motor according to any one of claims 1 to 23.

25. A mobile terminal characterized by comprising the camera device recited in claim 24.