CN114839739B

CN114839739B - Anti-shake prism motor driven around two shafts, camera device and mobile terminal

Info

Publication number: CN114839739B
Application number: CN202210681202.1A
Authority: CN
Inventors: 龚高峰; 王建华; 高睿哲
Original assignee: Shanghai BL Electronics Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2022-12-27
Anticipated expiration: 2042-06-16
Also published as: CN114839739A; WO2023240802A1

Abstract

The invention provides an anti-shake prism motor driven around two shafts, an imaging device and a mobile terminal. The prism motor of driving the anti-shake around the two shafts comprises a shell assembly, the shell assembly is provided with an accommodating space, and the prism motor of driving the anti-shake around the two shafts also comprises a motor body which is arranged inside the accommodating space: a frame; the prism carrier is arranged on the frame; the first driving assembly is arranged on one side, close to each other, of the frame and the prism carrier, at least one part of the first driving assembly is arranged on the frame, and at least the other part of the first driving assembly is arranged on the prism carrier; a second drive assembly, at least a portion of the second drive assembly being disposed on the housing assembly, at least another portion of the second drive assembly being disposed on the frame; when the first drive assembly is energized, the prism carrier rotates about the X-axis relative to the frame. The periscopic lens driving device solves the problem that the periscopic lens driving device in the prior art is poor in service performance.

Description

Anti-shake prism motor driven around two shafts, camera device and mobile terminal

Technical Field

The invention relates to the field of camera devices, in particular to an anti-shake prism motor driven around two axes, a camera device and a mobile terminal.

Background

With the development of technology, many electronic devices (e.g., tablet computers or smart phones) are equipped with a lens module and have camera or video functions today. The lens can be roughly divided into a wide-angle lens with short focal length and a telescopic lens with long focal length; however, placing a long-focus lens in the optical module increases the thickness of the electronic device, and is difficult to meet the requirement of the mobile terminal device for light weight and thin profile. In the prior art, a periscopic design is usually adopted, i.e. the optical path is laid down and a turning mirror is added to rotate the optical path by 90 degrees, so that the whole optical system is laid down to reduce the overall height.

The existing periscopic lens driving device comprises a reflection module (a prism motor) and a lens module (a periscopic motor), wherein the reflection module reflects imaging light rays for 90 degrees and then emits the imaging light rays into the lens module, and the lens module is used for focusing and imaging. At present, the anti-shake scheme of periscopic module is responsible for the anti-shake in two directions respectively or jointly by reflection module and camera lens module, therefore the camera lens is focused, the anti-shake needs reflection module and camera lens module cooperation drive to accomplish, it is big to have two sets of motor equipment, the debugging degree of difficulty, and the drive arrangement part is in large quantity, the design complicacy leads to the structure size big, the reliability scheduling problem not high.

Therefore, the periscopic lens driving device in the prior art has the problem of poor service performance.

Disclosure of Invention

The invention mainly aims to provide an anti-shake prism motor driven around two shafts, an image pickup device and a mobile terminal, so as to solve the problem that a periscopic lens driving device in the prior art is poor in service performance.

In order to accomplish the above object, according to one aspect of the present invention, there is provided a prism motor for driving anti-shake around two axes, comprising a housing assembly having an accommodating space, the prism motor for driving anti-shake around two axes further comprising: a frame; the prism carrier is arranged on the frame; the first driving assembly is arranged on one side, close to each other, of the frame and the prism carrier, at least one part of the first driving assembly is arranged on the frame, and at least the other part of the first driving assembly is arranged on the prism carrier; a second drive assembly, at least a portion of the second drive assembly being disposed on the housing assembly, at least another portion of the second drive assembly being disposed on the frame; when the first driving component is electrified, the prism carrier rotates around the X axis relative to the frame; when the second driving component is electrified, the frame drives the prism carrier to rotate around the Z axis relative to the shell component.

Further, the direction of the force generated by the first driving assembly on the prism carrier is parallel to the surface of the side where the frame and the prism carrier approach each other.

Furthermore, the side walls of the two ends of the frame in the X-axis direction are respectively provided with a first guide surface, the prism carrier is provided with a second guide surface in sliding fit with the first guide surface, the first guide surface and the second guide surface are both arc-shaped surfaces, and the projection of the first guide surface on a YZ plane is arc-shaped.

Furthermore, the first guide surface is a convex cambered surface, and the second guide surface is a concave cambered surface; or the first guide surface is a concave arc surface, and the second guide surface is a convex arc surface.

Furthermore, the frame has installation chimbs on the lateral wall at both ends of X axle direction respectively, and the installation chimb is provided with the installation breach corresponding to the prism carrier, and the surface of installation breach towards prism carrier one side has first guide surface.

Further, the frame is provided with a first mounting groove on a surface between the side walls at both ends in the X-axis direction, and a portion of the first driving assembly provided on the frame is accommodated in the first mounting groove.

Furthermore, one side of the frame, which is far away from the prism carrier in the Y-axis direction, is provided with a first guide structure and a second guide structure, the shell assembly is provided with a third guide structure corresponding to the first guide structure, and the shell assembly is provided with a fourth guide structure corresponding to the second guide structure.

Further, the first guide structure is located above the second guide structure in the Z-axis direction.

Furthermore, the number of the second guide structures is two, and the two second guide structures are respectively located on two sides of the first guide structure in the X-axis direction.

Further, the guiding directions of the first guiding structure, the second guiding structure, the third guiding structure and the fourth guiding structure are arranged around the Z axis.

Further, one of the first guide structure and the third guide structure is provided with a first guide projection, and the other of the first guide structure and the third guide structure is provided with a first guide notch matched with the first guide projection; and/or one of the second guide structure and the fourth guide structure is provided with a second guide projection, and the other is provided with a second guide notch matched with the second guide projection.

Further, first guide structure includes a first direction arch, the third guide structure corresponds first direction arch and is provided with first direction breach, second guide structure and fourth guide structure are two, and the second guide structure includes second direction breach, fourth guide structure corresponds second direction breach and is provided with the second direction arch respectively, first direction arch and second direction arch are the arc arch, first direction breach is the arcwall face towards the surface of the protruding one side of first direction and the surface of the protruding one side of second direction breach orientation second direction.

Furthermore, in the direction of the X axis, a connecting line of two ends of the first guide protrusion is parallel to the X axis; and/or in the X-axis direction, the connecting line of the two ends of the second guide notch forms an included angle with the X-axis and the Y-axis respectively.

Further, the housing assembly includes: a housing; the base, the shell cover is established on the base and forms the accommodation space with the base.

Further, the base comprises a bottom plate and a vertical plate, and the vertical plate is perpendicular to the bottom plate and connected with the edge of the bottom plate.

Further, the second driving assembly is arranged on one side, close to each other, of the frame and the vertical plate, and the direction of the acting force generated by the second driving assembly on the frame is parallel to the X axis.

Furthermore, one side of the frame facing the vertical plate is provided with a second installation groove, and the part of the second driving assembly arranged on the frame is accommodated in the second installation groove.

Furthermore, at least one corner of one side of the frame corresponding to the vertical plate is provided with at least one limiting protrusion.

Further, the first driving assembly comprises a first driving magnet and a first driving coil, the first driving magnet is arranged on the frame, and the first driving coil is arranged on the prism carrier; the second drive assembly comprises a second drive magnet and a second drive coil, the second drive magnet is arranged on the frame, and the second drive coil is arranged on the shell assembly.

Furthermore, the prism motor capable of driving the anti-shake device around the two shafts further comprises an FPC board, at least one part of the FPC board is arranged on the shell assembly, at least the other part of the FPC board is arranged on the prism carrier, and the part of the first driving assembly arranged on the prism carrier and the part of the second driving assembly arranged on the shell assembly are respectively connected with the FPC board.

Further, the FPC board includes the fixed section, linkage segment and the movable segment that connect in order, and the fixed section sets up on housing assembly, and the movable segment setting is on the prism carrier.

Furthermore, the connecting section comprises at least one connecting arm, two ends of the connecting arm are respectively connected with the fixed section and the movable section, and the frame is provided with an avoiding notch corresponding to the connecting arm.

Further, the fixed segment includes first section and the second section of connecting in order, and the one end that first section was kept away from to the second section is connected with the linkage segment, and the part that second drive assembly set up on housing assembly is connected with the second section, and the one end that second section was kept away from to first section stretches out housing assembly and has a plurality of wiring end foot.

Furthermore, the prism motor which is driven around the two shafts and used for preventing shaking further comprises a first magnetic absorption plate and a second magnetic absorption plate, the first driving assembly comprises a first driving magnet and a first driving coil, the first driving magnet is arranged on the frame, and the first driving coil is arranged on the prism carrier; the second driving assembly comprises a second driving magnet and a second driving coil, the second driving magnet is arranged on the frame, and the second driving coil is arranged on the shell assembly; the first magnetism absorption plate is arranged on the FPC board corresponding to the first drive magnet, and the first magnetism absorption plate and the first drive coil are respectively positioned on two sides of the FPC board; and/or the second magnetic absorption plate is arranged on the FPC board corresponding to the second drive magnet, and the second magnetic absorption plate and the second drive coil are respectively positioned on two sides of the FPC board.

Furthermore, the prism carrier comprises a first mounting plate and two second mounting plates symmetrically arranged on two sides of the first mounting plate, the first mounting plate is arranged opposite to the frame, the second mounting plates are arranged on one side, far away from the frame, of the first mounting plate, and the opposite surfaces of the two second mounting plates are respectively provided with at least one limiting convex rib and at least one weight reduction groove.

Furthermore, the two ends of the first mounting plate, which are close to the two second mounting plates, are respectively provided with a mounting convex edge, and a glue dispensing groove is formed between the two mounting convex edges.

According to another aspect of the present invention, there is provided an image pickup apparatus including the above-described prism motor that drives anti-shake about two axes.

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 prism motor capable of driving and preventing vibration around two shafts comprises a shell assembly, wherein the shell assembly is provided with an accommodating space, and the prism motor capable of driving and preventing vibration around two shafts further comprises a frame, a prism carrier, a first driving assembly and a second driving assembly which are arranged in the accommodating space. The prism carrier is arranged on the frame; the first driving assembly is arranged on one side, close to each other, of the frame and the prism carrier, at least one part of the first driving assembly is arranged on the frame, and at least another part of the first driving assembly is arranged on the prism carrier; at least one portion of the second drive assembly is disposed on the housing assembly and at least another portion of the second drive assembly is disposed on the frame; when the first driving component is electrified, the prism carrier rotates around the X axis relative to the frame; when the second driving component is electrified, the frame drives the prism carrier to rotate around the Z axis relative to the shell component.

Use in this application around the prism motor of diaxon drive anti-shake, because the prism carrier can be around X axle motion at first drive assembly's effect relative frame down, and the frame can drive the relative casing subassembly of prism carrier and wind Z axle motion under second drive assembly's effect, so can make the prism motor around diaxon drive anti-shake can drive the prism camera lens and wind the diaxon motion, drive the prism camera lens promptly and wind X axle and Z axle motion, thereby realize all-round three-dimensional IOS anti-shake drive mode. And, compare traditional periscope formula motor around two axis drive anti-shake's prism motor in this application, only need drive prism motor part can realize IOS anti-shake promptly to relative traditional periscope formula motor anti-shake performance can be excellent. Viewed from another aspect, since the first driving assembly is disposed at a side where the frame and the prism carrier are close to each other, an inner space of the prism motor driving the anti-shake around the two axes can be more effectively utilized, thereby ensuring that the prism motor driving the anti-shake around the two axes can be designed in a compact size. Therefore, the prism motor for driving the anti-shake lens around the two shafts effectively solves the problem that the periscopic lens driving device in the prior art is poor in service performance.

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 is an exploded view illustrating a prism motor for driving anti-shaking around two axes according to an embodiment of the present invention;

FIG. 2 is a schematic diagram showing the positional relationship of the frame, base and first drive assembly of an anti-shake prism motor driven about two axes in one embodiment of the present application;

FIG. 3 is a schematic diagram showing the internal structure of a prism motor for driving anti-shake about two axes in an embodiment of the present application;

FIG. 4 is a schematic diagram showing the positional relationship of the frame, prism carrier and second drive assembly for driving the anti-shake prism motor about two axes in one embodiment of the present application;

FIG. 5 is a schematic diagram showing the positional relationship of a frame and a prism carrier of a prism motor for driving an anti-shake prism about two axes in one embodiment of the present application;

FIG. 6 is a schematic diagram of a prism carrier for driving an anti-shake prism motor about two axes in one embodiment of the present application;

FIG. 7 is a schematic diagram showing the positional relationship of the base and the second ball of the prism motor for driving the anti-shake prism about two axes in one embodiment of the present application;

fig. 8 is a schematic diagram showing a positional relationship of an FPC board, a first magnetic absorption plate, and a second driving coil for driving the anti-shake prism motor around two axes in one embodiment of the present application;

fig. 9 shows a schematic view of another angle of the prism carrier driving the anti-shake prism motor around two axes in one embodiment of the present application.

Wherein the figures include the following reference numerals:

10. a housing assembly; 11. a third guide structure; 111. a first guide notch; 112. a fourth accommodating groove; 12. a fourth guide structure; 121. a second guide projection; 122. a sixth accommodating groove; 13. a housing; 14. a base; 141. a base plate; 142. a vertical plate; 20. a frame; 21. a first guide surface; 211. a first accommodating groove; 22. installing a convex edge; 221. installing a notch; 23. a first mounting groove; 24. a first guide structure; 241. a first guide projection; 242. a third accommodating groove; 25. a second guide structure; 251. a second guide notch; 252. a fifth accommodating groove; 26. a second mounting groove; 27. a limiting bulge; 28. avoiding the gap; 30. a prism carrier; 31. a second guide surface; 311. a second accommodating groove; 32. a first mounting plate; 321. mounting a rib; 322. dispensing a glue groove; 33. a second mounting plate; 331. a limit bead; 332. a weight reduction groove; 40. a first drive assembly; 41. a first drive magnet; 42. a first drive coil; 50. a second drive assembly; 51. a second drive magnet; 52. a second drive coil; 60. a first ball bearing; 70. a second ball bearing; 80. an FPC board; 81. a fixed section; 811. a first stage; 812. a second section; 82. a connecting section; 821. a connecting arm; 83. an active segment; 90. a first magnetism absorbing plate; 100. a second magnetism attracting plate; 200. and a prism lens.

Detailed Description

It should be noted that, in the present application, the embodiments and features of the embodiments 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 inner and outer relative to the profile of the components themselves, but the above directional terms are not intended to limit the invention.

In order to solve the poor problem of periscopic lens drive arrangement performance among the prior art, this application provides a prism motor, camera device and mobile terminal around diaxon drive anti-shake.

The mobile terminal according to the present invention includes an imaging device having a prism motor that is driven around two axes to prevent shaking as described below.

It should be noted that, the mobile terminal in the present application generally refers to a mobile phone or a notebook computer with a camera or a photographing function.

Meanwhile, it should be noted that the prism motor for driving the anti-shake around two axes in the present application is mainly used together with the lens motor in the periscopic lens.

As shown in fig. 1 to 9, the prism motor for driving around two axes to prevent shaking in the present application includes a housing assembly 10, the housing assembly 10 having an accommodating space, and a frame 20, a prism carrier 30, a first driving assembly 40, and a second driving assembly 50 disposed inside the accommodating space. The prism carrier 30 is disposed on the frame 20; the first driving assembly 40 is disposed at a side where the frame 20 and the prism carrier 30 are close to each other, at least one portion of the first driving assembly 40 is disposed on the frame 20, and at least another portion of the first driving assembly 40 is disposed on the prism carrier 30; at least a portion of the second drive assembly 50 is disposed on the housing assembly 10 and at least another portion of the second drive assembly 50 is disposed on the frame 20; when the first drive assembly 40 is energized, the prism carrier 30 rotates about the X-axis relative to the frame 20; when the second driving assembly 50 is powered on, the frame 20 drives the prism carrier 30 to rotate around the Z-axis relative to the housing assembly 10.

When the prism motor which is driven around two axes to prevent shaking in the application is used, because the prism carrier 30 can move around the X axis relative to the frame 20 under the action of the first driving component 40, and the frame 20 can drive the prism carrier 30 to move around the Z axis relative to the shell component 10 under the action of the second driving component 50, the prism motor which is driven around two axes to prevent shaking can drive the prism lens 200 to move around two axes, namely, the prism lens 200 is driven to move around the X axis and the Z axis, thereby realizing the omnibearing three-dimensional IOS anti-shaking driving mode. And, compare traditional periscope formula motor around two axis drive anti-shake's prism motor in this application, only need drive prism motor part can realize IOS anti-shake promptly to relative traditional periscope formula motor anti-shake performance can be excellent. Viewed from another aspect, since the first driving assembly 40 is disposed at a side where the frame 20 and the prism carrier 30 are close to each other, an inner space of the prism motor driving the anti-shake around two axes can be more effectively utilized, thereby ensuring that the prism motor driving the anti-shake around two axes can be designed in a small size. Therefore, the prism motor for driving the anti-shake lens around the two shafts effectively solves the problem that the periscopic lens driving device in the prior art is poor in service performance.

Note that the prism carrier 30 in the present application is used to place the prism lens 200.

Specifically, the prism motor driving the anti-shake around two axes further includes an FPC board 80, at least one portion of the FPC board 80 is disposed on the housing assembly 10, at least another portion of the FPC board 80 is disposed on the prism carrier 30, and a portion of the first driving assembly 40 disposed on the prism carrier 30 and a portion of the second driving assembly 50 disposed on the housing assembly 10 are connected to the FPC board 80, respectively. It should be noted that, in the present application, the FPC board 80 is provided not only for electrically connecting the first driving assembly 40 and the second driving assembly 50, but also for connecting and limiting the prism carrier 30 by providing the FPC board 80, so as to ensure that the prism carrier 30 does not deviate from the preset movement track during the movement process relative to the frame 20, and further ensure the stability of the prism motor for driving the anti-shake around two axes.

Specifically, the first drive assembly 40 includes a first drive magnet 41 and a first drive coil 42, the first drive magnet 41 being provided on the frame 20, the first drive coil 42 being provided on the prism carrier 30; the second drive assembly 50 includes a second drive magnet 51 and a second drive coil 52, the second drive magnet 51 being disposed on the frame 20, and the second drive coil 52 being disposed on the case assembly 10.

Specifically, the direction of the force generated by the first driving assembly 40 on the prism carrier 30 is parallel to the surface of the side where the frame 20 and the prism carrier 30 approach each other and parallel to the YZ plane. The frame 20 has first guide surfaces 21 on side walls at both ends in the X-axis direction, the prism carrier 30 has second guide surfaces 31 slidably engaged with the first guide surfaces 21, both the first guide surfaces 21 and the second guide surfaces 31 are arc-shaped surfaces, and projections of the first guide surfaces 21 on YZ planes are arc-shaped. Alternatively, the first guide surface 21 is a convex arc surface and the second guide surface 31 is a concave arc surface. Or the first guide surface 21 is a concave arc surface and the second guide surface 31 is a convex arc surface. That is, in the present application, the first guide surface 21 and the second guide surface 31 are different in unevenness so that the first guide surface 21 and the second guide surface 31 can be fitted to each other. In one embodiment of the present application, the first guide surface 21 is a concave arc surface, and the second guide surface 31 is a convex arc surface. It should be noted that although the direction of the acting force generated by the first driving assembly 40 on the prism carrier 30 is parallel to the surface of the side where the frame 20 and the prism carrier 30 approach each other, when the prism carrier 30 moves relative to the frame 20, the direction of the moving direction of the prism carrier 30 is different from the direction of the acting force generated by the first driving assembly 40, and this phenomenon occurs because the FPC board 80 limits the position of the prism carrier 30, so that the prism carrier 30 moves along the first guide surface 21, and further the prism carrier 30 moves relative to the frame 20 around the X axis. Therefore, the sliding fit of the first guide surface 21 and the second guide surface 31 in this embodiment is mainly to achieve that the prism carrier 30 can move in a preset direction relative to the frame 20.

Preferably, the prism motor for driving the anti-shake about two axes further includes a plurality of first balls 60, and the first balls 60 are disposed between at least one set of the first guide surfaces 21 and the second guide surfaces 31 disposed correspondingly. Through such an arrangement, it can be ensured that the prism carrier 30 moves more smoothly in the process of moving relative to the frame 20, thereby improving the sensitivity of the prism motor for driving the anti-shake around two axes. Also, it should be noted that, in the present embodiment, the prism carrier 30 and the frame 20 are only contacted by the first balls 60, or the prism carrier 30 and the frame 20 are respectively contacted by the first balls 60, but no contact is generated between the prism carrier 30 and the frame 20. By such an arrangement, the friction between the prism carrier 30 and the frame 20 can be effectively reduced, and the usability and the service life of the prism motor for driving the anti-shake device around two axes can be improved.

Optionally, the frame 20 is provided with a receiving groove for receiving the first ball 60.

Optionally, the prism carrier 30 is provided with a receiving groove for receiving the first ball 60.

Specifically, the accommodating grooves include a plurality of first accommodating grooves 211 disposed on the frame 20 and a plurality of second accommodating grooves 311 disposed on the prism carrier 30, at least one first ball 60 is disposed in each first accommodating groove 211, the plurality of first accommodating grooves 211 and the plurality of second accommodating grooves 311 are disposed correspondingly, and different first accommodating grooves 211 and different second accommodating grooves 311 are spliced to form a space for accommodating the first ball 60.

Specifically, the extending direction of the first receiving groove 211 is the same as the extending direction of the first guide surface 21. By such an arrangement, the movement direction of the prism carrier 30 can be defined by the extending direction of the first receiving groove 211, thereby ensuring the normal operation of the prism motor driving the anti-shake around two axes.

Optionally, one first ball 60 is correspondingly disposed in each first receiving groove 211.

Optionally, the first receiving groove 211 is an arc-shaped groove; and/or the second receiving groove 311 is an arc-shaped groove.

Alternatively, the frame 20 has mounting flanges 22 on the side walls of the two ends in the X-axis direction, the mounting flanges 22 are provided with mounting notches 221 corresponding to the prism carrier 30, and the surface of the mounting notches 221 facing the prism carrier 30 has the first guide surface 21.

In an embodiment of the present application, two first receiving grooves 211 are disposed on one of the first guiding surfaces 21, and one first receiving groove 211 is disposed on the other first guiding surface 21. Furthermore, all the first balls 60 have arc lines as their projected lines in YZ plane, and the center of the arc line coincides with the rotation axis of the prism carrier 30 when it rotates relative to the frame 20. Meanwhile, the distances from the first balls 60 in the two first receiving grooves 211 on the same first guide surface 21 to the first balls 60 in the first receiving grooves 211 on the other first guide surface 21 are the same. By such an arrangement, the stability of the support of the first balls 60 can be ensured, so that the stability between the frame 20 and the prism carrier 30 can be ensured, and the smooth swing of the prism carrier 30 can be ensured.

When a current is applied to the first driving coil 42, the first driving magnet 41 and the first driving coil 42 located on the front surface of the frame 20 interact with each other to generate an electromagnetic driving force parallel to the first driving magnet 41. At this time, since the frame 20 is provided with balls on both sides of the front surface, the carrier can be smoothly twisted and rotated on the Y/Z axis plane with respect to the frame 20 by using the characteristics of the balls.

In this case, the frame 20 is provided with the first guide surface 21 as a stationary member in an arc slope shape. Three first balls 60, serving as sliding media, must be arranged on the arc slope according to a certain positional relationship each other, and two balls are disposed on one side of the frame 20, wherein one ball is located at the top slope position of the arc slope, and the other ball is located at the bottom slope position of the arc slope. And the distance between the two balls and the other side ball of the frame 20 is preferably set to be equal, i.e. arranged in an isosceles triangle. The main purpose of this arrangement is to maintain the prism carrier 30 in a stable operating state supported by the bottom three balls at equal intervals when the prism carrier 30 rotates around the X axis along the Y/Z axis plane after the prism carrier 30 is stressed. The rotation center, i.e., the rotation base axis position, is constant regardless of whether the power is applied, and does not shift or change with the rotational movement of the prism carrier 30 in the Y/Z axis plane. Through the positive and negative electrode switching mode of applying current to the first driving coil 42 and the strength change of the applied current, the generated electromagnetic force makes the prism carrier 30 start to perform twisting rotation in a clockwise or counterclockwise direction at a certain angle around the rotation base axis, i.e., an X axis located at the position of the rotation center. And due to a position sensing feedback mechanism of the first position detection chip, the rotation angle of the carrier can be well controlled so as to enable the rotation angle to reach an ideal target stop position. Therefore, by controlling the rotation angle of the prism carrier 30, the prism lens 200 mounted on the prism carrier 30 has the ability of OIS anti-shake correction in the Y/Z axis plane.

Specifically, the frame 20 is provided with a first mounting groove 23 on a surface between side walls at both ends in the X-axis direction, and a portion of the first driving assembly 40 provided on the frame 20 is received in the first mounting groove 23. It should be noted that, in the present embodiment, the first driving magnet 41 of the first driving assembly 40 is accommodated in the first mounting groove 23, so that the prism carrier 30 can be prevented from contacting the first driving magnet 41 during the movement relative to the frame 20, and the internal space of the prism motor for driving around two axes to prevent vibration can be effectively utilized, thereby being more beneficial to the miniaturization design of the prism motor for driving around two axes to prevent vibration.

Specifically, the frame 20 is provided with a first guide structure 24 and a second guide structure 25 on a side away from the prism carrier 30 in the Y-axis direction, the housing assembly 10 is provided with a third guide structure 11 corresponding to the first guide structure 24, and the housing assembly 10 is provided with a fourth guide structure 12 corresponding to the second guide structure 25. Also, the first guide structure 24 is located above the second guide structure 25 in the Z-axis direction.

Alternatively, one of the first guide structure 24 and the third guide structure 11 has a first guide projection 241, and the other has a first guide notch 111 which is matched with the first guide projection 241.

Alternatively, one of the second guide structure 25 and the fourth guide structure 12 has a second guide protrusion 121, and the other has a second guide notch 251 that mates with the second guide protrusion 121.

In one embodiment of the present application, the number of the second guiding structures 25 is two, and the two second guiding structures 25 are respectively located at two sides of the first guiding structure 24 in the X-axis direction. Further, the guiding directions of the first guiding structure 24, the second guiding structure 25, the third guiding structure 11 and the fourth guiding structure 12 are arranged around the Z-axis. Meanwhile, the first guiding structure 24 includes a first guiding protrusion 241, the third guiding structure 11 is provided with a first guiding notch 111 corresponding to the first guiding protrusion 241, the second guiding structure 25 and the fourth guiding structure 12 are both two, the second guiding structure 25 includes a second guiding notch 251, the fourth guiding structure 12 is provided with a second guiding protrusion 121 corresponding to the second guiding notch 251, the first guiding protrusion 241 and the second guiding protrusion 121 are both arc-shaped protrusions, and the surface of the first guiding notch 111 facing one side of the first guiding protrusion 241 and the surface of the second guiding notch 251 facing one side of the second guiding protrusion 121 are both arc-shaped surfaces. And, the second driving assembly 50 is disposed at a side where the frame 20 and the vertical plate 142 are close to each other, and a direction of a force generated by the second driving assembly 50 to the frame 20 is parallel to the X-axis. In this embodiment, due to the cooperation of the first guide structure 24 and the third guide structure 11 and the FPC board 80, the frame 20 does not move along the X-axis but swings around the Z-axis during the process of moving the prism carrier 30 together relative to the housing assembly 10. Meanwhile, the interaction of the first guide structure 24 and the third guide structure 11 and the interaction of the second guide structure 25 and the fourth guide structure 12 play a role in guiding and limiting the movement direction of the frame 20. That is, in the present application, the prism carrier 30 moves relative to the frame 20 and the frame 20 moves relative to the housing assembly 10 in a swinging manner.

Preferably, the prism motor for driving the anti-shake device around two axes further includes a plurality of second balls 70, at least one third receiving groove 242 is formed in the first guide structure 24, a fourth receiving groove 112 is formed in the third guide structure 11 corresponding to the third receiving groove 242, and at least one second ball 70 is disposed in each third receiving groove 242; the second guiding structure 25 is provided with at least one fifth receiving groove 252, the fourth guiding structure 12 is provided with a sixth receiving groove 122 corresponding to the fifth receiving groove 252, and each fifth receiving groove 252 is provided with at least one second ball 70. This arrangement ensures that the frame 20 can move more smoothly relative to the housing assembly 10.

In one embodiment of the present application, all of the second balls 70 are connected by an arc in the projection in the XY plane, and the center of the arc coincides with the rotation axis of the frame 20 when rotating relative to the housing assembly 10. Moreover, the distance from the second ball 70 in each fifth receiving groove 252 to the second ball 70 in the third receiving groove 242 is the same, and the projections of the third receiving groove 242 and the fifth receiving groove 252 on the XY plane are arc-shaped. By such an arrangement, the stability of the support of the second balls 70 can be ensured, so that the stability between the frame 20 and the housing assembly 10 can be ensured, and the swing of the frame 20 can be more smoothly ensured.

When a current is applied to the second driving coil 52, the second driving magnet 51 and the second driving coil 52 located on the back surface of the frame 20 interact with each other, and an electromagnetic driving force perpendicular to the second driving magnet 51 is generated. At this time, since the second balls 70 are provided on the first and

second guide structures

24 and 25 of the frame 20, the frame 20 and the prism carrier 30 can be smoothly rotated in a twist on the X/Y axis plane by using the characteristics of the balls.

In this case, the case assembly 10 exists as a stator, and the frame 20 and the prism carrier 30 exist as a mover. Both side portions of the back surface of the frame 20 where the second balls 70 are provided are formed in an arc shape. Three second balls 70 as sliding media are arranged on the arc in a certain position relationship, and two second balls 70 are respectively arranged on two sides of the bottom of the frame 20, and the third ball is located at the center of the top of the back of the frame 20. The distance between the two second balls 70 at the bottom edge and the second balls 70 at the top edge is preferably set to be equal, i.e. the two balls are arranged in an isosceles triangle. The main purpose of this arrangement is to maintain the stable operation state of the frame 20 under stress, which is supported by the second balls 70 at the three positions on the back at equal intervals, when the frame 20 rotates around the Z axis along the X/Y axis plane after the frame 20 is stressed. The rotation center position is constant regardless of the power supply, and does not shift with the rotational movement of the frame 20 in the X/Y axis plane. The frame 20 starts to rotate in a clockwise or counterclockwise direction at a certain angle around the basic axis of rotation, i.e., a Z axis located at the center of rotation, by the electromagnetic force generated by the switching of the polarity and polarity of the current applied to the second driving coil 52 and the variation of the intensity of the applied current. And due to the position sensing feedback mechanism of the second position detection chip, the rotation angle of the prism carrier 30 can be well controlled to reach the ideal target stop position. Therefore, by controlling the rotation angle of the frame 20, the prism carrier 30 is rotated in a twisting manner, and the prism lens 200 has the ability of OIS anti-shake correction of the X/Y axis plane.

In one embodiment of the present application, the prism carrier 30 swings at a maximum angle of 1.25 degrees with respect to the frame 20, and the frame 20 swings at a maximum angle of 1.75 degrees with respect to the housing assembly 10. Of course, the maximum swing angle of the prism carrier 30 and the frame 20 can be adjusted according to actual use requirements.

Preferably, a line connecting both ends of the first guide protrusion 241 is parallel to the X axis in the X axis direction.

Preferably, a line connecting both ends of the second guide notch 251 has an angle with the X axis and the Y axis, respectively, in the X axis direction.

Specifically, the housing assembly 10 includes a housing 13 and a base 14, and the housing 13 covers the base 14 and forms an accommodating space with the base 14. Also, the base 14 includes a bottom plate 141 and a standing plate 142, and the standing plate 142 is perpendicular to the bottom plate 141 and connected to an edge of the bottom plate 141.

Optionally, the side of the frame 20 facing the vertical plate 142 has a second mounting groove 26, and a portion of the second driving assembly 50 disposed on the frame 20 is received in the second mounting groove 26. The second drive magnet 51 of the second drive assembly 50 is received in the second mounting groove 26 in this embodiment, thereby facilitating a compact design of the prism motor for driving the anti-shake around two axes.

Optionally, at least one limiting protrusion 27 is disposed at least one corner of the frame 20 corresponding to one side of the vertical plate 142. The limiting protrusion 27 can limit the movement of the frame 20 when the frame 20 moves relative to the housing assembly 10.

Preferably, the FPC board 80 includes a fixed section 81, a connection section 82, and a movable section 83 connected in sequence, the fixed section 81 being disposed on the housing assembly 10, and the movable section 83 being disposed on the prism carrier 30. Furthermore, the connecting section 82 includes at least one connecting arm 821, both ends of the connecting arm 821 are respectively connected with the fixed section 81 and the movable section 83, and the frame 20 has an avoiding gap 28 corresponding to the connecting arm 821. Furthermore, the fixing section 81 includes a first section 811 and a second section 812 connected in sequence, one end of the second section 812 far from the first section 811 is connected to the connecting section 82, the portion of the second driving assembly 50 disposed on the housing assembly 10 is connected to the second section 812, and one end of the first section 811 far from the second section 812 extends out of the housing assembly 10 and has a plurality of terminal pins.

In one embodiment of the present application, there are 12 terminal pins, and in the present application, a first position detection chip is disposed corresponding to the first driving assembly 40, a second position detection chip is disposed corresponding to the second driving assembly 50, and the first position detection chip is electrically connected to 4 terminal pins, the second position detection chip is electrically connected to 4 terminal pins, the first driving coil 42 is electrically connected to two terminal pins, and the second driving coil 52 is electrically connected to two terminal pins. Preferably, in the present embodiment, the second drive coil 52 includes two coils arranged in series, and the second drive magnet 51 includes four magnets arranged in parallel and adjacent magnets have different magnetic poles. This is because the frame 20, during movement relative to the housing assembly 10, will move the prism carrier 30 with it and thus require a greater driving force.

Specifically, the prism motor driving the anti-shake around two axes further includes a first magnetic attraction plate 90 and a second magnetic attraction plate 100, the first driving assembly 40 includes a first driving magnet 41 and a first driving coil 42, the first driving magnet 41 is disposed on the frame 20, and the first driving coil 42 is disposed on the prism carrier 30; the second drive assembly 50 includes a second drive magnet 51 and a second drive coil 52, the second drive magnet 51 being disposed on the frame 20, the second drive coil 52 being disposed on the case assembly 10; the first magnetism absorption plate 90 is arranged on the FPC board 80 corresponding to the first driving magnet 41, and the first magnetism absorption plate 90 and the first driving coil 42 are respectively positioned at two sides of the FPC board 80; the second magnetism attracting plate 100 is disposed on the FPC board 80 corresponding to the second driving magnets 51, and the second magnetism attracting plate 100 and the second driving coil 52 are respectively located on both sides of the FPC board 80. The frame 20 and the prism carrier 30 are in a stable state in which they are forced against each other by the first magnetism absorbing plate 90 being attached to the first driving magnet 41 facing each other. The second magnetic attraction plate 100 is attracted to the second driving magnet 51 facing thereto, so that the frame 20 is attracted to one side surface of the base 14, and the frame 20 is in a stable state of being forced. It is emphasized that the prism carrier 30 and the frame 20 are firmly held by the first and second

magnetism absorbing plates

90 and 100. Here, the first magnetic absorption plate 90 and the second magnetic absorption plate 100 also have the effects of locking a magnetic field, preventing magnetic leakage and increasing thrust.

In the present application, when both the first drive coil 42 and the second drive coil 52 are not energized, the frame 20 can be placed in a floating state in the middle by the first magnetic attraction plate 90, the first drive magnet 41, the second magnetic attraction plate 100, and the second drive magnet 51.

Optionally, the prism carrier 30 includes a first mounting plate 32 and two second mounting plates 33 symmetrically disposed on two sides of the first mounting plate 32, the first mounting plate 32 is disposed opposite to the frame 20, the second mounting plates 33 are disposed on a side of the first mounting plate 32 away from the frame 20, and opposite surfaces of the two second mounting plates 33 are respectively provided with at least one limiting protrusion 331 and at least one weight-reducing groove 332. The first mounting plate 32 is provided with mounting ribs 321 at both ends thereof adjacent to the two second mounting plates 33, and a glue dispensing groove 322 is formed between the two mounting ribs 321. In the present embodiment, the purpose of providing the stopper rib 331 and the dispensing groove 322 is to ensure the stability of the prism lens 200 mounted on the prism carrier 30. In addition, since the glue is filled in the glue dispensing groove 322 to ensure stable connection between the prism lens 200 and the prism carrier 30, the prism lens 200 does not fall off after the anti-shake prism motor driven around two axes is impacted. The weight-reducing grooves 332 are provided to effectively reduce the weight of the prism carrier 30, so that the prism carrier 30 can move relative to the frame 20 more easily.

In the present application, by providing angular twisting rotation of the prism carrier 30 about the X axis, it is possible to move and adjust the position of the prism lens 200 in the Y/Z axis plane, that is, to realize OIS anti-shake correction on the Y/Z axis plane. It should be noted that, since one side of the prism carrier 30 and the movable section 83 of the FPC board 80 are closely adhered to each other in a plane, when the prism carrier 30 assembly moves, a portion of the connecting section 82 of the FPC board 80 assembly and the movable section 83 as a mover move together with the prism carrier 30 assembly. A part of the connection section 82 and the movable section 83 of the FPC board 80 serve as components of the mover, and the avoidance space of the mover during movement is fully considered in design, so that the possibility of mutual contact with other components during movement is avoided. The frame 20 is rotated around the Z axis by twisting, so that the prism lens can be adjusted in the X/Y plane, that is, the OIS anti-shake correction on the X/Y plane is realized.

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

1. the problem that the periscopic lens driving device in the prior art is poor in service performance is effectively solved;

2. the structure is compact and the occupied space is small.

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. The utility model provides a prism motor around diaxon drive anti-shake, its characterized in that includes housing assembly (10), housing assembly (10) has the accommodation space, around diaxon drive anti-shake's prism motor still including setting up inside the accommodation space:

a frame (20);

a prism carrier (30), the prism carrier (30) being disposed on the frame (20);

a first driving assembly (40), the first driving assembly (40) being disposed at a side where the frame (20) and the prism carrier (30) are close to each other, at least one portion of the first driving assembly (40) being disposed on the frame (20), at least another portion of the first driving assembly (40) being disposed on the prism carrier (30);

a second drive assembly (50), at least a portion of the second drive assembly (50) being disposed on the housing assembly (10), at least another portion of the second drive assembly (50) being disposed on the frame (20);

the side walls of two ends of the frame (20) in the X-axis direction are respectively provided with a first guide surface (21), the prism carrier (30) is provided with a second guide surface (31) in sliding fit with the first guide surface (21), the first guide surface (21) and the second guide surface (31) are both arc-shaped surfaces, and the projection of the first guide surface (21) on a YZ plane is arc-shaped;

a first guide structure (24) and a second guide structure (25) are arranged on one side, away from the prism carrier (30), of the frame (20) in the Y-axis direction, a third guide structure (11) is arranged on the shell assembly (10) corresponding to the first guide structure (24), and a fourth guide structure (12) is arranged on the shell assembly (10) corresponding to the second guide structure (25);

the first guide structure (24) comprises a first guide protrusion (241), the third guide structure (11) is provided with two first guide notches (111) corresponding to the first guide protrusion (241), the second guide structure (25) and the fourth guide structure (12) are provided with two second guide protrusions (121) corresponding to the second guide notches (251), the fourth guide structure (12) is provided with two second guide protrusions (121) corresponding to the second guide notches (251), the first guide protrusion (241) and the second guide protrusion (121) are both arc-shaped protrusions, and the surface of the first guide notch (111) facing one side of the first guide protrusion (241) and the surface of the second guide notch (251) facing one side of the second guide protrusion (121) are both arc-shaped surfaces;

the first drive assembly (40) comprises a first drive magnet (41) and a first drive coil (42), the first drive magnet (41) being disposed on the frame (20), the first drive coil (42) being disposed on the prism carrier (30);

the second drive assembly (50) comprises a second drive magnet (51) and a second drive coil (52), the second drive magnet (51) is arranged on the frame (20), and the second drive coil (52) is arranged on the shell assembly (10);

an FPC board (80), at least one part of the FPC board (80) is arranged on the shell component (10), at least another part of the FPC board (80) is arranged on the prism carrier (30), and the part of the first driving component (40) arranged on the prism carrier (30) and the part of the second driving component (50) arranged on the shell component (10) are respectively connected with the FPC board (80);

when the first drive assembly (40) is energized, the prism carrier (30) rotates about an X-axis relative to the frame (20);

when the second driving assembly (50) is electrified, the frame (20) drives the prism carrier (30) to rotate around the Z axis relative to the shell assembly (10).

2. A prism motor for driving anti-shake around two axes as claimed in claim 1, wherein the direction of the force generated by the first driving assembly (40) on the prism carrier (30) is parallel to the surface of the side where the frame (20) and the prism carrier (30) approach each other.

3. The prism motor for driving anti-shake around two axes of claim 1,

the first guide surface (21) is a convex arc surface, and the second guide surface (31) is a concave arc surface; or

The first guide surface (21) is a concave arc surface, and the second guide surface (31) is a convex arc surface.

4. The prism motor for driving anti-shake around two axes as claimed in claim 1, wherein the frame (20) has mounting beads (22) on the side walls of both ends in the X-axis direction, the mounting beads (22) are provided with mounting notches (221) corresponding to the prism carrier (30), and the surface of the mounting notches (221) facing the prism carrier (30) has the first guide surface (21).

5. The prism motor that drives anti-shake around two axes as set forth in claim 1, wherein the frame (20) is provided with a first mounting groove (23) on a surface between side walls at both ends in the X-axis direction, and a portion of the first driving assembly (40) provided on the frame (20) is received in the first mounting groove (23).

6. A prism motor for driving anti-shake around two axes as claimed in claim 1, wherein the first guide structure (24) is located above the second guide structure (25) in the Z-axis direction.

7. A prism motor for driving anti-shake around two axes as claimed in claim 1, characterized in that the second guide structures (25) are two, and the two second guide structures (25) are located on both sides of the first guide structure (24) in the X-axis direction.

8. A prism motor for driving anti-shake around two axes according to claim 1, characterized in that the guiding directions of the first guide structure (24), the second guide structure (25), the third guide structure (11) and the fourth guide structure (12) are arranged around the Z-axis.

9. The anti-shake prism motor driven around two axes according to claim 1,

in the X-axis direction, a connecting line of two ends of the first guide protrusion (241) is parallel to the X axis; and/or

In the X-axis direction, a connecting line of two ends of the second guide notch (251) forms included angles with the X-axis and the Y-axis respectively.

10. A prism motor for driving anti-shake around two axes as defined in any of claims 1-9, wherein the housing assembly (10) comprises:

a housing (13);

the shell (13) covers the base (14) and forms the accommodating space with the base (14).

11. The prism motor driven around two axes for anti-shake according to claim 10, wherein the base (14) comprises a base plate (141) and a riser (142), the riser (142) being perpendicular to the base plate (141) and connected to an edge of the base plate (141).

12. The prism motor for driving anti-shake around two axes as claimed in claim 11, wherein the second driving unit (50) is disposed at a side where the frame (20) and the vertical plate (142) are close to each other, and a direction of a force generated from the second driving unit (50) to the frame (20) is parallel to the X-axis.

13. The prism motor driven around two axes for anti-shake according to claim 12, wherein a side of the frame (20) facing the riser (142) has a second mounting groove (26), and a portion of the second driving assembly (50) disposed on the frame (20) is received in the second mounting groove (26).

14. The prism motor for driving anti-shake around two axes as claimed in claim 11, wherein at least one position-limiting protrusion (27) is provided at least one corner of the frame (20) corresponding to one side of the vertical plate (142).

15. The prism motor that drives anti-shake around two axes as set forth in any one of claims 1 through 9, wherein the FPC board (80) comprises a fixed section (81), a connection section (82), and a movable section (83) connected in sequence, the fixed section (81) being provided on the housing assembly (10), the movable section (83) being provided on the prism carrier (30).

16. A prism motor for driving anti-shake around two axes as claimed in claim 15, wherein the connecting section (82) comprises at least one connecting arm (821), both ends of the connecting arm (821) are connected to the fixed section (81) and the movable section (83), respectively, and the frame (20) has an escape gap (28) corresponding to the connecting arm (821).

17. A prism motor for driving anti-shake around two axes as claimed in claim 15, wherein the fixed section (81) comprises a first section (811) and a second section (812) connected in series, one end of the second section (812) remote from the first section (811) is connected to the connecting section (82), a portion of the second driving assembly (50) provided on the housing assembly (10) is connected to the second section (812), and one end of the first section (811) remote from the second section (812) protrudes out of the housing assembly (10) and has a plurality of terminal pins.

18. A prism motor for driving anti-shake around two axes according to any of claims 1 to 9, further comprising a first magnetically attracting plate (90) and a second magnetically attracting plate (100),

the first magnetism absorption plate (90) is arranged on the FPC board (80) corresponding to the first driving magnet (41), and the first magnetism absorption plate (90) and the first driving coil (42) are respectively positioned on two sides of the FPC board (80); and/or

The second magnetism absorption plate (100) is arranged on the FPC board (80) corresponding to the second drive magnet (51), and the second magnetism absorption plate (100) and the second drive coil (52) are respectively located on two sides of the FPC board (80).

19. A prism motor for driving anti-shake around two axes as claimed in any one of claims 1 to 9, wherein the prism carrier (30) comprises a first mounting plate (32) and two second mounting plates (33) symmetrically disposed at both sides of the first mounting plate (32), the first mounting plate (32) is disposed opposite to the frame (20), the second mounting plates (33) are disposed at a side of the first mounting plate (32) away from the frame (20), and opposite surfaces of the two second mounting plates (33) are respectively provided with at least one limit projection (331) and at least one weight-reducing groove (332).

20. A prism motor for driving anti-shake around two axes as claimed in claim 19, wherein the first mounting plate (32) is provided with mounting ribs (321) near both ends of the two second mounting plates (33), respectively, and a glue dispensing groove (322) is formed between the two mounting ribs (321).

21. An image pickup apparatus comprising the prism motor for driving anti-shake around two axes according to any one of claims 1 to 20.

22. A mobile terminal characterized by comprising the camera device according to claim 21.