WO2023240802A1 - Prism motor for anti-shake driving around two axes, camera apparatus and mobile terminal - Google Patents

Abstract

A prism motor for anti-shake driving around two axes, a camera apparatus and a mobile terminal. Said prism motor comprises a housing assembly (10), the housing assembly (10) being provided with an accommodation space, and further comprises, arranged inside the accommodation space, a frame (20); a prism carrier (30), the prism carrier (30) being arranged on the frame (20); a first drive assembly (40), the first drive assembly (40) being arranged on a side where the frame (20) and the prism carrier (30) are close to each other, at least a portion of the first drive assembly (40) being arranged on the frame (20), and at least another portion of the first drive assembly (40) being arranged on the prism carrier (30); and a second drive assembly (50), at least a portion of the second drive assembly (50) being arranged on the housing assembly (10), and at least another portion of the second drive assembly (50) being arranged on the frame (20). When the first drive assembly (40) is powered on, the prism carrier (30) rotates around the X-axis relative to the frame (20). The problem in the prior art is solved that a periscopic lens drive apparatus exhibits poor use performance.

Description

Driving anti-shake prism motors, camera devices and mobile terminals around two axes Technical field

The present invention relates to the field of camera devices, and specifically to a prism motor that drives anti-shake around two axes, a camera device and a mobile terminal.

With the development of technology, many electronic devices today, such as tablets or smartphones, are equipped with lens modules and have camera or video functions. Lenses can be roughly divided into short focal length wide-angle lenses and long focal length telephoto lenses; however, placing a long focal length lens in an optical module will increase the thickness of the electronic device, making it difficult to meet the thinning and lightness requirements of mobile terminal devices. In the existing technology, a periscope design is usually adopted, that is, the optical path is laid flat and a turning mirror is added to rotate the optical path 90 degrees, so that the entire optical system lies flat to reduce the overall height.

The existing periscope lens driving device includes a reflection module (prism motor) and a lens module (periscope motor). The reflection module reflects the imaging light 90° and then enters the lens module, and the lens module performs focusing and imaging. Currently, the periscope module’s anti-shake solution consists of a reflective module and a lens module that are respectively or jointly responsible for anti-shake in two directions. Therefore, lens focusing and anti-shake require the reflective module and the lens module to be driven together. There are two sets of motor assembly. , Debugging is difficult, and the large number of driving device parts and complex design lead to problems such as large structural size and low reliability.

Therefore, there is a problem in the prior art that the performance of the periscope lens driving device is poor.

The main purpose of the present invention is to provide a prism motor, a camera device and a mobile terminal that drive anti-shake around two axes, so as to solve the problem of poor performance of periscope lens driving devices in the prior art.

In order to achieve the above object, according to one aspect of the present invention, a prism motor that drives anti-shake around two axes is provided, which includes a housing assembly. The housing assembly has an accommodation space. The prism motor that drives anti-shake around two axes also includes Disposed inside the accommodating space: a frame; a prism carrier, the prism carrier is disposed on the frame; a first driving component, the first driving component is disposed on the side where the frame and the prism carrier are close to each other, and at least part of the first driving component is disposed on On the frame, at least another part of the first driving component is disposed on the prism carrier; on the second driving component, at least one part of the second driving component is disposed on the housing component, and at least another part of the second driving component is disposed on the frame; when When the first driving component is powered on, the prism carrier rotates around the X-axis relative to the frame; when the second driving component is powered on, the frame drives the prism carrier to rotate around the Z-axis relative to the housing component.

Further, the direction of the force generated by the first driving component on the prism carrier is parallel to the surface of the side of the frame and the prism carrier that are close to each other.

Further, the frame has first guide surfaces on the side walls at both ends in the surface, the projection of the first guide surface on the YZ plane is an arc.

Further, the first guide surface is a convex arc surface and the second guide surface is a concave arc 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 mounting flanges on the side walls at both ends in the X-axis direction. The mounting flanges are provided with mounting notches corresponding to the prism carrier. The surface of the mounting notches facing the prism carrier has a first guide surface.

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

Further, the frame is provided with a first guide structure and a second guide structure on a side away from the prism carrier in the Y-axis direction, the housing component is provided with a third guide structure corresponding to the first guide structure, and the housing component is provided with a second guide structure corresponding to There is a fourth guide structure.

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

Further, there are two second guide structures. In the X-axis direction, the two second guide structures are respectively located on both sides of the first guide structure.

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

Further, one of the first guide structure and the third guide structure has a first guide protrusion, and the other has a first guide notch that matches the first guide protrusion; and/or the second guide structure and the fourth guide structure One of them has a second guide protrusion, and the other has a second guide notch that cooperates with the second guide protrusion.

Further, the first guide structure includes a first guide protrusion, the third guide structure is provided with a first guide notch corresponding to the first guide protrusion, there are two second guide structures and two fourth guide structures, and the second guide structure has two first guide protrusions. The structure includes a second guide notch. The fourth guide structure is provided with second guide protrusions corresponding to the second guide notch. The first guide protrusion and the second guide protrusion are both arc-shaped protrusions. The first guide notch faces the first guide protrusion. The surface on one side of the guide protrusion and the surface on the side of the second guide notch facing the second guide protrusion are both arc-shaped surfaces.

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

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

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

Further, the second driving component is disposed on the side where the frame and the vertical plate are close to each other, and the direction of the force exerted by the second driving component on the frame is parallel to the X-axis.

Further, a side of the frame facing the vertical plate has a second installation groove, and the portion of the second driving component provided on the frame is accommodated in the second installation groove.

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

Further, the first driving assembly includes 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 includes a second driving magnet and a second driving coil. The coil, the second driving magnet is arranged on the frame, and the second driving coil is arranged on the housing assembly.

Further, the anti-shake prism motor driving around two axes also includes an FPC board, at least a part of the FPC board is provided on the housing assembly, at least another part of the FPC board is provided on the prism carrier, and the first driving component is provided on the prism carrier The part on the housing assembly and the part of the second driving assembly on the housing assembly are respectively connected to the FPC board.

Further, the FPC board includes a fixed section, a connecting section and a movable section connected in sequence, the fixed section is arranged on the housing assembly, and the movable section is arranged on the prism carrier.

Further, the connecting section includes at least one connecting arm, the two ends of the connecting arm are respectively connected to the fixed section and the movable section, and the frame has an avoidance gap corresponding to the connecting arm.

Further, the fixed section includes a first section and a second section connected in sequence, one end of the second section away from the first section is connected to the connecting section, and the part of the second driving component provided on the housing component is connected to the second section, And one end of the first section away from the second section extends out of the housing assembly and has a plurality of terminal pins.

Further, the anti-shake prism motor driven around two axes also includes a first magnet plate and a second magnet plate, the first driving component includes a first driving magnet and a first driving coil, and the first driving magnet is arranged on the frame, The first driving coil is arranged on the prism carrier; the second driving assembly includes 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 housing assembly; the first magnetic absorbing plate The corresponding first driving magnet is arranged on the FPC board, and the first magnetic absorbing plate and the first driving coil are respectively located on both sides of the FPC board; and/or the second magnetic absorbing plate is arranged on the FPC board corresponding to the second driving magnet, and The second magnetic plate and the second driving coil are respectively located on both sides of the FPC board.

Further, the prism carrier includes a first mounting plate and two second mounting plates symmetrically arranged on both sides of the first mounting plate. The first mounting plate is arranged opposite to the frame, and the second mounting plate is arranged away from the first mounting plate away from the frame. One side and the opposite side of the two second mounting plates are respectively provided with at least one limiting ridge and at least one weight-reducing groove.

Further, two ends of the first mounting plate close to the two second mounting plates are respectively provided with mounting ribs, and a glue dispensing groove is provided between the two mounting ribs.

According to another aspect of the present invention, a camera device is provided, including the above-mentioned prism motor driving anti-shake around two axes.

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

Applying the technical solution of the present invention, the prism motor driving anti-shake around two axes in this application includes a housing assembly, and the housing assembly has an accommodation space. The prism motor driving anti-shake around two axes also includes a prism motor arranged in the accommodation space. The inner frame, the prism carrier, the first driving component and the second driving component. The prism carrier is arranged on the frame; the first driving component is arranged on the side where the frame and the prism carrier are close to each other, at least a part of the first driving component is arranged on the frame, and at least another part of the first driving component is arranged on the prism carrier; At least a part of the two driving components is provided on the housing component, and at least another part of the second driving component is provided on the frame; when the first driving component is powered on, the prism carrier rotates relative to the frame around the X-axis; when the second driving component is powered on , the frame drives the prism carrier to rotate relative to the housing assembly around the Z axis.

When the anti-shake prism motor in this application is used to drive the anti-shake around two axes, the prism carrier can move relative to the frame around the X-axis under the action of the first driving component, and the frame can drive the prism carrier relative to the frame under the action of the second driving component. The housing assembly moves around the Z-axis, so the prism motor that can drive anti-shake around two axes can drive the prism lens to move around two axes, that is, it drives the prism lens to move around the X-axis and Z-axis, thereby realizing an all-round three-dimensional IOS anti-shake drive. model. Moreover, compared with traditional periscope motors, the prism motor in this application that drives anti-shake around two axes only needs to drive the prism motor part to achieve IOS anti-shake, and its anti-shake performance is superior to that of traditional periscope motors. On the other hand, since the first driving component is disposed on the side where the frame and the prism carrier are close to each other, the internal space of the prism motor that drives the anti-shake around two axes can be more effectively utilized, thereby ensuring that the anti-shake is driven around two axes. The prism motor enables miniaturization design. Therefore, the prism motor driving anti-shake around two axes in this application effectively solves the problem of poor performance of periscope lens driving devices in the prior art.

The description and drawings that constitute a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached picture:

Figure 1 shows an exploded view of a prism motor driving anti-shake around two axes according to a specific embodiment of the present invention;

Figure 2 shows a schematic diagram of the positional relationship between the frame, the base and the first driving component of the anti-shake prism motor driven around two axes in a specific embodiment of the present application;

Figure 3 shows a schematic diagram of the internal structure of a prism motor that drives anti-shake around two axes in a specific embodiment of the present application;

Figure 4 shows a schematic diagram of the positional relationship between the frame, the prism carrier and the second driving component of the anti-shake prism motor driven around two axes in a specific embodiment of the present application;

Figure 5 shows a schematic diagram of the positional relationship between a frame and a prism carrier that drives an anti-shake prism motor around two axes in a specific embodiment of the present application;

Figure 6 shows a schematic structural diagram of a prism carrier that drives an anti-shake prism motor around two axes in a specific embodiment of the present application;

Figure 7 shows a schematic diagram of the positional relationship between the base and the second ball of the anti-shake prism motor driven around two axes in a specific embodiment of the present application;

Figure 8 shows a schematic diagram of the positional relationship between the FPC board, the first magnetic plate and the second drive coil that drives the anti-shake prism motor around two axes in a specific embodiment of the present application;

FIG. 9 shows a schematic structural diagram from another angle of a prism carrier that drives an anti-shake prism motor around two axes in a specific embodiment of the present application.

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

10. Shell assembly; 11. Third guide structure; 111. First guide notch; 112. Fourth accommodation slot; 12. Fourth guide structure; 121. Second guide protrusion; 122. Sixth accommodation slot ; 13. Shell; 14. Base; 141. Bottom plate; 142. Vertical plate; 20. Frame; 21. First guide surface; 211. First receiving groove; 22. Installation flange; 221. Installation gap; 23. The first installation groove; 24. The first guide structure; 241. The first guide protrusion; 242. The third accommodation groove; 25. The second guide structure; 251. The second guide notch; 252. The fifth accommodation groove; 26. Second installation groove; 27. Limiting protrusion; 28. Avoidance gap; 30. Prism carrier; 31. Second guide surface; 311. Second accommodation groove; 32. First mounting plate; 321. Installation protrusion Rib; 322. Glue dispensing slot; 33. Second mounting plate; 331. Limiting rib; 332. Weight reduction slot; 40. First driving component; 41. First driving magnet; 42. First driving coil; 50 , the second drive component; 51, the second drive magnet; 52, the second drive coil; 60, the first ball; 70, the second ball; 80, FPC board; 81, fixed section; 811, first section; 812, Second section; 82, connecting section; 821, connecting arm; 83, movable section; 90, first magnetic plate; 100, second magnetic plate; 200, prism lens.

It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings commonly understood by those of ordinary skill in the technical field to which this application belongs.

In the present invention, unless otherwise specified, the directional words used such as "up, down, top, bottom" usually refer to the direction shown in the drawings, or refer to the vertical or vertical position of the component itself. Vertically or in the direction of gravity; similarly, for ease of understanding and description, "inside and outside" refers to the inside and outside relative to the outline of each component itself, but the above directional terms are not used to limit the present invention.

In order to solve the problem of poor performance of periscope lens driving devices in the prior art, this application provides a prism motor that drives anti-shake around two axes, a camera device and a mobile terminal.

Furthermore, the mobile terminal in the present application has a camera device, and the camera device has a prism motor that drives anti-shake around two axes as described below.

It should be pointed out that the mobile terminal in this application generally refers to a mobile phone or laptop computer with video or photo functions.

At the same time, it should be noted that the prism motor driving anti-shake around two axes in this application is mainly used together with the lens motor in the periscope lens.

As shown in Figures 1 to 9, the prism motor that drives anti-shake around two axes in this application includes a housing assembly 10. The housing assembly 10 has an accommodation space. The prism motor that drives anti-shake around two axes also includes a device. The frame 20, the prism carrier 30, the first driving assembly 40 and the second driving assembly 50 are inside the accommodation space. The prism carrier 30 is disposed on the frame 20; the first driving component 40 is disposed on the side where the frame 20 and the prism carrier 30 are close to each other. At least a part of the first driving component 40 is disposed on the frame 20, and at least another part of the first driving component 40 is disposed on the frame 20. A part is provided on the prism carrier 30; at least a part of the second driving assembly 50 is provided on the housing assembly 10, and at least another part of the second driving assembly 50 is provided on the frame 20; when the first driving assembly 40 is powered on, the prism carrier 30 rotates around 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 anti-shake prism motor in this application is used to drive around two axes, 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 move around the X-axis under the action of the second driving component 50. The bottom drives the prism carrier 30 to move around the Z-axis relative to the housing assembly 10, so the prism motor that drives the anti-shake around two axes can drive the prism lens 200 to move around the two axes, that is, the prism lens 200 can be driven to move around the X-axis and Z-axis. This enables a full range of stereoscopic IOS anti-shake drive modes. Moreover, compared with traditional periscope motors, the prism motor in this application that drives anti-shake around two axes only needs to drive the prism motor part to achieve IOS anti-shake, and its anti-shake performance is superior to that of traditional periscope motors. On the other hand, since the first driving assembly 40 is disposed on the side where the frame 20 and the prism carrier 30 are close to each other, the internal space of the anti-shake prism motor driven around two axes can be more effectively utilized, thereby ensuring that the anti-shake prism motor can be driven around two axes. The prism motor driving the anti-shake enables compact design. Therefore, the prism motor driving anti-shake around two axes in this application effectively solves the problem of poor performance of periscope lens driving devices in the prior art.

It should be noted that the prism carrier 30 in this application is used to place the prism lens 200 .

Specifically, the anti-shake prism motor that drives around two axes also includes an FPC board 80, at least a part of the FPC board 80 is provided on the housing assembly 10, at least another part of the FPC board 80 is provided on the prism carrier 30, and the first drive The portion of the assembly 40 disposed on the prism carrier 30 and the portion of the second driving component 50 disposed on the housing assembly 10 are respectively connected to the FPC board 80 . It should be noted that in this application, the purpose of arranging the FPC board 80 is not only to realize the electrical connection between the first driving component 40 and the second driving component 50 , but also in this application, by arranging the FPC board 80 , the prism carrier can be 30 plays the role of connection and limiting, thereby ensuring that the prism carrier 30 will not deviate from the preset movement trajectory during its movement relative to the frame 20, thereby ensuring the stability of the anti-shake prism motor driven around two axes.

Specifically, the first driving assembly 40 includes a first driving magnet 41 and a first driving coil 42. The first driving magnet 41 is provided on the frame 20, and the first driving coil 42 is provided on the prism carrier 30; the second driving assembly 50 includes The second driving magnet 51 and the second driving coil 52 are arranged on the frame 20 and the second driving coil 52 is arranged on the housing 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 of the frame 20 and the prism carrier 30 that are close to each other and parallel to the YZ plane. In addition, the frame 20 has first guide surfaces 21 on the side walls at both ends in the X-axis direction, and the prism carrier 30 has a second guide surface 31 that slides with the first guide surface 21. The surfaces 31 are all arc-shaped surfaces, and the projection of the first guide surface 21 on the YZ plane is arc-shaped. Optionally, 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 to say, in this application, the first guide surface 21 and the second guide surface 31 are concave and convex, so that the first guide surface 21 and the second guide surface 31 can cooperate with each other. In a specific 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. Furthermore, it should be noted that although the direction of the force exerted by the first driving component 40 on the prism carrier 30 is parallel to the surface of the side where the frame 20 and the prism carrier 30 are close to each other, when the prism carrier 30 moves relative to the frame 20, The movement direction of the prism carrier 30 is not the same as the direction of the force generated by the first driving assembly 40. The reason for this phenomenon is that the FPC board 80 has a limiting effect on the prism carrier 30, so that the prism carrier 30 will move along the first driving component 40. The guide surface 21 moves, thereby realizing the movement of the prism carrier 30 relative to the frame 20 around the X-axis. Therefore, in this embodiment, the sliding fit between the first guide surface 21 and the second guide surface 31 is mainly to enable the prism carrier 30 to move in a preset direction relative to the frame 20 .

Preferably, the anti-shake prism motor driven around two axes further includes a plurality of first balls 60 , and the first balls 60 are disposed between at least one set of correspondingly arranged first guide surfaces 21 and second guide surfaces 31 . This arrangement can ensure that the prism carrier 30 moves more smoothly when the prism carrier 30 moves relative to the frame 20 , thereby improving the sensitivity of the anti-shake prism motor that drives around two axes. Moreover, it should be noted that in this embodiment, the prism carrier 30 and the frame 20 are only in contact with each other through the first ball 60 , or in other words, the prism carrier 30 and the frame 20 are in contact with the first ball 60 respectively, and the prism carrier 30 and the frame 20 are in contact with each other. There will be no contact between them. This arrangement can effectively reduce the friction between the prism carrier 30 and the frame 20 and improve the performance and service life of the prism motor that drives the anti-shake around two axes.

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

Optionally, the prism carrier 30 is provided with an accommodating groove for accommodating the first ball 60 .

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

Specifically, the extension direction of the first accommodating groove 211 is the same as the extension direction of the first guide surface 21 . With this arrangement, the movement direction of the prism carrier 30 can be limited by the extension direction of the first accommodation groove 211 , thereby ensuring the normal operation of the anti-shake prism motor driven around two axes.

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

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

Optionally, the frame 20 has mounting flanges 22 on the side walls at both ends in the A guide surface 21.

In a specific embodiment of the present application, one of the first guide surfaces 21 is provided with two first accommodating grooves 211 , and the other first guide surface 21 is provided with one first accommodating groove 211 . Moreover, the line connecting the projections of all the first balls 60 in the YZ plane is an arc, and the center of the arc coincides with the rotation axis when the prism carrier 30 rotates relative to the frame 20 . At the same time, the distance between the first balls 60 located in the two first receiving grooves 211 on the same first guide surface 21 and the first ball 60 located in the first receiving groove 211 on the other first guide surface 21 same. This arrangement can ensure the stability of the support of the first ball 60, ensure the stability between the frame 20 and the prism carrier 30, and ensure that the prism carrier 30 swings more smoothly.

After the current is passed through the first driving coil 42 , the first driving magnet 41 at the front position of the frame 20 interacts with the first driving coil 42 to generate an electromagnetic driving force parallel to the first driving magnet 41 . At this time, since there are balls on both sides of the front side of the frame 20, the characteristics of the balls are utilized so that the carrier can smoothly twist and rotate relative to the frame 20 on the Y/Z axis plane.

In this case, the first guide surface 21 of the frame 20 as the immovable element is arranged in a circular arc slope shape. The three first balls 60 serve as sliding media and must be arranged on the arc slope according to a certain positional relationship with each other. There are two balls on one side of the frame 20, one of which is at the top of the arc slope and the other one. The ball is at the bottom of the arc slope. And the distance between the two balls and the balls on the other side of the frame 20 should be set to equal intervals, that is, an isosceles triangle arrangement. The main purpose of this arrangement is to keep the prism carrier 30 in a stable operating state supported by three balls at equal intervals at the bottom when the prism carrier 30 rotates around the X axis and along the Y/Z axis plane after the prism carrier 30 is stressed. Regardless of whether the power is applied before or after, the position of the rotation center, that is, the base axis of rotation is in a constant state and will not shift as the prism carrier 30 rotates on the Y/Z axis plane. By passing the positive and negative polarity switching mode of the current to the first driving coil 42 and changing the intensity of the applied current, the electromagnetic force generated causes the prism carrier 30 to rotate around the basic axis of rotation, that is, an X-axis located at the position of the rotation center. Start twisting and rotating at an angle in a clockwise or counterclockwise direction. And due to the position sensing feedback mechanism of the first position detection chip, the rotation angle of the carrier can be well controlled so that its rotation angle reaches the 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 capability of OIS anti-shake correction on the Y/Z axis plane.

Specifically, the frame 20 is provided with a first mounting groove 23 on the surface between the side walls at both ends in the X-axis direction, and the portion of the first driving assembly 40 provided on the frame 20 is accommodated in the first mounting groove 23 . It should be noted that in this embodiment, the first driving magnet 41 of the first driving assembly 40 is accommodated in the first mounting groove 23. This arrangement can not only prevent the prism carrier 30 from interacting with the frame 20 during its movement relative to the The first driving magnet 41 is in contact, and by such an arrangement, the internal space of the prism motor that drives anti-shake around two axes can be effectively utilized, which is more conducive to the miniaturization design of the prism motor that drives anti-shake around two axes. .

Specifically, the frame 20 is provided with a first guide structure 24 and a second guide structure 25 on the 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. The assembly 10 is provided with a fourth guide structure 12 corresponding to the second guide structure 25 . Moreover, in the Z-axis direction, the first guide structure 24 is located above the second guide structure 25 .

Optionally, one of the first guide structure 24 and the third guide structure 11 has a first guide protrusion 241, and the other has a first guide notch 111 that cooperates with the first guide protrusion 241.

Optionally, 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 cooperates with the second guide protrusion 121 .

In a specific embodiment of the present application, there are two second guide structures 25. In the X-axis direction, the two second guide structures 25 are respectively located on both sides of the first guide structure 24. Moreover, 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. At the same time, the first guide structure 24 includes a first guide protrusion 241, the third guide structure 11 is provided with a first guide notch 111 corresponding to the first guide protrusion 241, and the second guide structure 25 and the fourth guide structure 12 are two and the second guide structure 25 includes a second guide notch 251. The fourth guide structure 12 is respectively provided with a second guide protrusion 121 corresponding to the second guide notch 251. The first guide protrusion 241 and the second guide protrusion 121 are both It is an arc-shaped protrusion. The surface of the first guide notch 111 facing the first guide protrusion 241 and the surface of the second guide notch 251 facing the second guide protrusion 121 are both arc-shaped surfaces. Furthermore, the second driving component 50 is disposed on the side where the frame 20 and the vertical plate 142 are close to each other, and the direction of the force exerted by the second driving component 50 on the frame 20 is parallel to the X-axis. In this embodiment, due to the mutual cooperation between the first guide structure 24 and the third guide structure 11 and the role of the FPC board 80, the frame 20 does not move with the prism carrier 30 relative to the housing assembly 10. Instead of moving along the X-axis, it swings around the Z-axis. At the same time, the interaction between the first guide structure 24 and the third guide structure 11 and the interaction between the second guide structure 25 and the fourth guide structure 12 play a guiding and limiting role in the movement direction of the frame 20 . That is to say, in this application, the movement mode of the prism carrier 30 relative to the frame 20 and the movement mode of the frame 20 relative to the housing assembly 10 are both swings.

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

In a specific embodiment of the present application, the line connecting the projections of all the second balls 70 in the XY plane is an arc, and the center of the arc coincides with the rotation axis when the frame 20 rotates relative to the housing assembly 10 . Moreover, the distance from the second ball 70 in each fifth accommodating groove 252 to the second ball 70 in the third accommodating groove 242 is the same, and the projection of the third accommodating groove 242 and the fifth accommodating groove 252 on the XY plane is For arc shape. This arrangement can ensure the stability of the second ball 70 support, ensure the stability between the frame 20 and the housing assembly 10, and ensure that the frame 20 swings more smoothly.

After the current is passed through the second driving coil 52 , the second driving magnet 51 at the back of the frame 20 interacts with the second driving coil 52 to generate an electromagnetic driving force perpendicular to the second driving magnet 51 . At this time, since the second ball 70 is provided on the first guide structure 24 and the second guide structure 25 of the frame 20, the characteristics of the ball are used so that the frame 20 and the prism carrier 30 can smoothly twist on the X/Y axis plane. Rotate.

In this case, the housing assembly 10 serves as a stator, and the frame 20 and prism carrier 30 serve as movers. The two side edges of the back bottom of the frame 20 on which the second balls 70 are provided are arranged in an arc shape. Three second balls 70 serve as sliding media and must be arranged on the arc according to a certain positional relationship with each other. There is one second ball 70 on each side of the bottom of the frame 20, and the third ball is located at the top of the back of the frame 20. Central location. The distance between the two second balls 70 at the bottom and the second ball 70 at the top should be set to equal intervals, that is, an isosceles triangle arrangement. The main purpose of this arrangement is to keep the frame 20 in a stable operating state supported by three second balls 70 at equal intervals on the back when the frame 20 rotates around the Z axis along the X/Y axis plane after the frame 20 is stressed. Regardless of whether it is powered on or off, the position of the rotation center is in a constant state and will not change as the frame 20 rotates on the X/Y axis plane. By switching the positive and negative poles of the current to the second driving coil 52 and changing the intensity of the applied current, the electromagnetic force generated causes the frame 20 to start rotating around the base axis of rotation, that is, the Z-axis located at the center of the rotation. Twist and rotate at a certain angle in a clockwise or counterclockwise direction. Moreover, 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 so that the rotation angle reaches the ideal target resting position. Therefore, by controlling the rotation angle of the frame 20 and twisting and rotating the prism carrier 30 together, the prism lens 200 also has the ability to perform OIS anti-shake correction on the X/Y axis plane.

In a specific embodiment of the present application, the maximum angle at which the prism carrier 30 swings relative to the frame 20 is 1.25 degrees, and the maximum angle at which the frame 20 swings relative to the housing assembly 10 is 1.75 degrees. Of course, according to actual usage requirements, the maximum swing angle of the prism carrier 30 and the frame 20 can also be adjusted.

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

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

Specifically, the housing assembly 10 includes a housing 13 and a base 14. The housing 13 is covered on the base 14 and forms an accommodation space with the base 14. Moreover, the base 14 includes a bottom plate 141 and an upright plate 142. The upright plate 142 is perpendicular to the bottom plate 141 and connected to the edge of the bottom plate 141.

Optionally, the frame 20 has a second mounting slot 26 on a side facing the vertical plate 142 , and the portion of the second driving assembly 50 disposed on the frame 20 is accommodated in the second mounting slot 26 . In this embodiment, the second driving magnet 51 in the second driving assembly 50 is accommodated in the second mounting slot 26 , which facilitates the miniaturization design of the anti-shake prism motor driven around two axes.

Optionally, the frame 20 is provided with at least one limiting protrusion 27 at at least one corner on one side of the vertical plate 142 . By providing the limiting protrusion 27 , the movement of the frame 20 can be limited when the frame 20 moves relative to the housing assembly 10 .

Preferably, the FPC board 80 includes a fixed section 81 , a connecting section 82 and a movable section 83 connected in sequence. The fixed section 81 is provided on the housing assembly 10 , and the movable section 83 is provided 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 connected to the fixed section 81 and the movable section 83 respectively. The frame 20 has an avoidance gap 28 corresponding to the connecting arm 821 . Moreover, the fixed section 81 includes a first section 811 and a second section 812 connected in sequence. One end of the second section 812 away from the first section 811 is connected to the connecting section 82 . The second driving assembly 50 is disposed on the housing assembly 10 The first section 811 is partially connected to the second section 812, and one end of the first section 811 away from the second section 812 extends out of the housing assembly 10 and has a plurality of terminal pins.

In a specific embodiment of this application, there are 12 terminal pins in total, and in this application, a first position detection chip is provided corresponding to the first driving component 40, and a second position detection chip is provided corresponding to the second driving component 50. , at the same time, the first position detection chip is electrically connected to the four terminal pins, the second position detection chip is electrically connected to the four terminal pins, the first drive coil 42 is electrically connected to the two terminal pins, and the second drive coil 52 is electrically connected to The two terminal pins are electrically connected. Preferably, in this embodiment, the second driving coil 52 includes two coils arranged in series, and the second driving magnet 51 includes four magnets arranged in parallel and the magnetic poles of adjacent magnets are different. This arrangement is because when the frame 20 moves relative to the housing assembly 10, it will drive the prism carrier 30 to move together, thus requiring greater driving force.

Specifically, the anti-shake prism motor driven around two axes also includes a first magnet plate 90 and a second magnet plate 100 . The first drive assembly 40 includes a first drive magnet 41 and a first drive coil 42 . The first drive magnet 41 is arranged on the frame 20, and the first driving coil 42 is arranged on the prism carrier 30; the second driving assembly 50 includes a second driving magnet 51 and a second driving coil 52. The second driving magnet 51 is arranged on the frame 20, and the second driving coil 42 is arranged on the frame 20. The driving coil 52 is disposed on the housing assembly 10; the first magnetic absorbing plate 90 is disposed on the FPC board 80 corresponding to the first driving magnet 41, and the first magnetic absorbing plate 90 and the first driving coil 42 are respectively located on both sides of the FPC board 80. side; the second magnetic absorbing plate 100 is arranged on the FPC board 80 corresponding to the second driving magnet 51, and the second magnetic absorbing plate 100 and the second driving coil 52 are respectively located on both sides of the FPC board 80. By arranging the first magnetic plate 90 to attract the opposite first driving magnet 41 , the frame 20 and the prism carrier 30 are in a stable state in which they are forced by each other. The second magnetic plate 100 is attracted to the opposite second driving magnet 51, so that the frame 20 is attracted to one side of the base 14, so that the frame 20 is in a stable state under force. What needs to be emphasized here is that due to the joint action of the first magnetic absorbing plate 90 and the second magnetic absorbing plate 100, the prism carrier 30 and the frame 20 are firmly held. Here, the first magnetic absorbing plate 90 and the second magnetic absorbing plate 100 also have the function of locking the magnetic field, preventing magnetic flux leakage, and increasing the thrust force.

Moreover, in this application, when both the first driving coil 42 and the second driving coil 52 are in a non-energized state, the frame 20 can connect the first magnetic absorbing plate 90 to the first driving magnet 41 and the second magnetic absorbing plate 100 and the second driving magnet 51 is in a suspended mid-position state.

Optionally, the prism carrier 30 includes a first mounting plate 32 and two second mounting plates 33 symmetrically disposed on both sides of the first mounting plate 32. The first mounting plate 32 is disposed opposite to the frame 20, and the second mounting plates 33 are disposed opposite to the frame 20. At least one limiting rib 331 and at least one weight-reducing groove 332 are respectively provided on the side of the first mounting plate 32 away from the frame 20 and on the opposite side of the two second mounting plates 33 . In addition, mounting ribs 321 are respectively provided at both ends of the first mounting plate 32 close to the two second mounting plates 33 , and a glue dispensing groove 322 is provided between the two mounting ribs 321 . In this embodiment, the purpose of providing the limiting rib 331 and the glue dispensing groove 322 is to ensure the stability of the prism lens 200 installed on the prism carrier 30 . Moreover, since the glue dispensing groove 322 is filled with glue to ensure a stable connection between the prism lens 200 and the prism carrier 30, the prism lens 200 will not fall off after the prism motor that drives the anti-shake around two axes is impacted. The phenomenon. The provision of weight-reducing grooves 332 can effectively reduce the weight of the prism carrier 30, thereby making it easier for the prism carrier 30 to move relative to the frame 20.

In this application, by setting the prism carrier 30 to twist and rotate around the angle of the X-axis, the possibility of moving and adjusting the position of the prism lens 200 on the Y/Z-axis plane is realized, that is, OIS anti-shake on the Y/Z-axis plane is realized. Correction. 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 bonded to each other on the plane, when the prism carrier 30 assembly moves, a part of the connecting section 82 and the movable section 83 of the FPC board 80 assembly As a mover, it will move together with the prism carrier 30 assembly. Part of the connecting section 82 and the movable section 83 of the FPC board 80 are components of the mover, and their design fully considers the avoidance space when they move to avoid the possibility of mutual contact with other components when they move. By setting the angle of the frame 20 to twist and rotate around the Z axis, it is possible to move and adjust the position of the prism lens on the X/Y axis plane, that is, OIS anti-shake correction on the X/Y axis plane is realized.

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

1. Effectively solves the problem of poor performance of periscope lens driving devices in the existing technology;

2. The structure is compact and takes up little space.

Obviously, the above-described embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall within the scope of protection of the present invention.

It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular forms are also intended to include the plural forms unless the context clearly indicates otherwise. Furthermore, it will be understood that when the terms "comprises" and/or "includes" are used in this specification, they indicate There are features, steps, work, means, components and/or combinations thereof.

It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the application described herein can be practiced in sequences other than those illustrated or described herein.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims (28)

1. A prism motor that drives anti-shake around two axes, characterized in that it includes a housing assembly (10), and the housing assembly (10) has an accommodation space. The prism motor that drives anti-shake around two axes also includes Set inside the accommodation space:

   frame(20);

   Prism carrier (30), the prism carrier (30) is arranged on the frame (20);

   A first driving assembly (40), the first driving assembly (40) is disposed on the side where the frame (20) and the prism carrier (30) are close to each other, and at least one of the first driving assembly (40) One part is provided on the frame (20), and at least another part of the first driving assembly (40) is provided on the prism carrier (30);

   A second drive assembly (50), 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) on;

   When the first driving assembly (40) is powered on, the prism carrier (30) rotates around 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).
2. The anti-shake prism motor driven around two axes according to claim 1, characterized in that the direction of the force generated by the first driving component (40) on the prism carrier (30) is parallel to the frame ( 20) and the surface of the side on which the prism carrier (30) is close to each other.
3. The prism motor driving anti-shake around two axes according to claim 1, characterized in that the frame (20) has first guide surfaces (21) on the side walls at both ends in the X-axis direction, and the prism The carrier (30) has a second guide surface (31) that slides with the first guide surface (21). Both the first guide surface (21) and the second guide surface (31) are arc-shaped surfaces. , the projection of the first guide surface (21) on the YZ plane is arc-shaped.
4. The prism motor driving anti-shake around two axes according to claim 3, characterized in that:

   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.
5. The anti-shake prism motor driven around two axes according to claim 3, characterized in that the frame (20) has mounting flanges (22) on the side walls at both ends in the X-axis direction, and the mounting flanges (22) are The side (22) is provided with a mounting notch (221) corresponding to the prism carrier (30), and the surface of the mounting notch (221) facing the prism carrier (30) has the first guide surface (21).
6. The anti-shake prism motor driven around two axes according to claim 1, characterized in that the frame (20) is provided with a first mounting groove (23) on the surface between the side walls at both ends in the X-axis direction. , the part of the first driving component (40) provided on the frame (20) is accommodated in the first installation groove (23).
7. The anti-shake prism motor driven around two axes according to claim 1, characterized in that the frame (20) is provided with a first guide structure (24) on a side away from the prism carrier (30) in the Y-axis direction. ) and a second guide structure (25). The housing assembly (10) is provided with a third guide structure (11) corresponding to the first guide structure (24). The housing assembly (10) is provided with a third guide structure (11) corresponding to the third guide structure (24). The second guide structure (25) is provided with a fourth guide structure (12).
8. The prism motor driving anti-shake around two axes according to claim 7, characterized in that, in the Z-axis direction, the first guide structure (24) is located above the second guide structure (25).
9. The prism motor driving anti-shake around two axes according to claim 7, characterized in that there are two second guide structures (25), and in the X-axis direction, two second guide structures (25) ) are respectively located on both sides of the first guide structure (24).
10. The anti-shake prism motor driven around two axes according to claim 7, characterized in that the first guide structure (24), the second guide structure (25), the third guide structure (11) The guiding direction of the fourth guiding structure (12) is set around the Z-axis.
11. The prism motor driving anti-shake around two axes according to claim 7, characterized in that:

    One of the first guide structure (24) and the third guide structure (11) has a first guide protrusion (241), and the other has a first guide protrusion (241) that cooperates with the first guide protrusion (241). Guide notch (111); and/or

    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 protrusion (121) that cooperates with the second guide protrusion (121). Guide notch (251).
12. The anti-shake prism motor driven around two axes according to claim 7, wherein the first guide structure (24) includes a first guide protrusion (241), and the third guide structure (11) A first guide notch (111) is provided corresponding to the first guide protrusion (241), there are two second guide structures (25) and two fourth guide structures (12), and the second guide structure (25) and the fourth guide structure (12) are two. The guide structure (25) includes a second guide notch (251), and the fourth guide structure (12) is respectively provided with second guide protrusions (121) corresponding to the second guide notch (251). Both the protrusion (241) and the second guide protrusion (121) are arc-shaped protrusions, and the first guide notch (111) faces the surface on one side of the first guide protrusion (241) and the The surface of the second guide notch (251) facing the second guide protrusion (121) is an arc surface.
13. The prism motor driving anti-shake around two axes according to claim 12, characterized in that:

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

    In the X-axis direction, the line connecting the two ends of the second guide notch (251) has an included angle with the X-axis and the Y-axis respectively.
14. The anti-shake prism motor driven around two axes according to any one of claims 1 to 13, characterized in that the housing assembly (10) includes:

    shell(13);

    Base (14), the housing (13) is covered on the base (14) and forms the accommodation space with the base (14).
15. The anti-shake prism motor driven around two axes according to claim 14, characterized in that the base (14) includes a bottom plate (141) and a vertical plate (142), and the vertical plate (142) is perpendicular to the The bottom plate (141) is connected with the edge of the bottom plate (141).
16. The anti-shake prism motor driven around two axes according to claim 15, characterized in that the second driving component (50) is disposed at a point where the frame (20) and the vertical plate (142) are close to each other. side, and the direction of the force exerted by the second driving component (50) on the frame (20) is parallel to the X-axis.
17. The anti-shake prism motor driven around two axes according to claim 16, characterized in that the side of the frame (20) facing the vertical plate (142) has a second mounting groove (26), and the first The portions of the two driving assemblies (50) provided on the frame (20) are accommodated in the second installation slot (26).
18. The anti-shake prism motor driven around two axes according to claim 15, characterized in that at least one limiter is provided at at least one corner of the side of the frame (20) corresponding to the vertical plate (142). Bump (27).
19. The prism motor driving anti-shake around two axes according to any one of claims 1 to 13, characterized in that:

    The first driving assembly (40) includes a first driving magnet (41) and a first driving coil (42). The first driving magnet (41) is provided on the frame (20). The first driving magnet (41) is provided on the frame (20). The coil (42) is arranged on the prism carrier (30);

    The second driving assembly (50) includes a second driving magnet (51) and a second driving coil (52). The second driving magnet (51) is provided on the frame (20). A coil (52) is provided on the housing assembly (10).
20. The prism motor driving anti-shake around two axes according to any one of claims 1 to 13, characterized in that the prism motor driving anti-shake around two axes further includes an FPC board (80), and the FPC board At least a part of (80) is provided on the housing assembly (10), at least another part of the FPC board (80) is provided on the prism carrier (30), and the first driving assembly (40) The portion provided on the prism carrier (30) and the portion of the second driving component (50) provided on the housing assembly (10) are respectively connected to the FPC board (80).
21. The anti-shake prism motor driven around two axes according to claim 20, characterized in that the FPC board (80) includes a fixed section (81), a connecting section (82) and a movable section (83) connected in sequence. , the fixed section (81) is provided on the housing assembly (10), and the movable section (83) is provided on the prism carrier (30).
22. The anti-shake prism motor driven around two axes according to claim 21, characterized in that the connecting section (82) includes at least one connecting arm (821), and both ends of the connecting arm (821) are respectively connected to the The fixed section (81) is connected to the movable section (83), and the frame (20) has an avoidance gap (28) corresponding to the connecting arm (821). .
23. The anti-shake prism motor driven around two axes according to claim 21, wherein the fixed section (81) includes a first section (811) and a second section (812) connected in sequence, and the third section (812) is connected in sequence. One end of the second section (812) away from the first section (811) is connected to the connecting section (82), and the part of the second driving component (50) provided on the housing component (10) is connected to the connecting section (82). The second section (812) is connected, and one end of the first section (811) away from the second section (812) extends out of the housing assembly (10) and has a plurality of terminal pins.
24. The prism motor driving anti-shake around two axes according to claim 20, characterized in that the prism motor driving anti-shake around two axes further includes a first magnetic absorbing plate (90) and a second magnetic absorbing 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 provided on the frame (20). The first driving magnet (41) is provided on the frame (20). The coil (42) is arranged on the prism carrier (30);

    The second driving assembly (50) includes a second driving magnet (51) and a second driving coil (52). The second driving magnet (51) is provided on the frame (20). The coil (52) is provided on the housing assembly (10);

    The first magnetic absorbing plate (90) is arranged on the FPC board (80) corresponding to the first driving magnet (41), and the first magnetic absorbing plate (90) and the first driving coil ( 42) respectively located on both sides of the FPC board (80); and/or

    The second magnetic plate (100) is arranged on the FPC board (80) corresponding to the second driving magnet (51), and the second magnetic plate (100) and the second driving coil ( 52) are respectively located on both sides of the FPC board (80).
25. The anti-shake prism motor driven around two axes according to any one of claims 1 to 13, characterized in that the prism carrier (30) includes a first mounting plate (32) and is symmetrically arranged on the first Two second mounting plates (33) on both sides of the mounting plate (32), the first mounting plate (32) is arranged opposite to the frame (20), and the second mounting plate (33) is arranged on the The first mounting plate (32) is on one side away from the frame (20), and the opposite sides of the two second mounting plates (33) are respectively provided with at least one limiting rib (331) and at least one weight-reducing rib. slot(332).
26. The anti-shake prism motor driven around two axes according to claim 25, wherein the first mounting plate (32) is provided with mounting protrusions at both ends close to the two second mounting plates (33). Ribs (321), and there is a glue dispensing groove (322) between the two mounting ribs (321).
27. A camera device, characterized by comprising the prism motor driving anti-shake around two axes according to any one of claims 1 to 26.
28. A mobile terminal, characterized by comprising the camera device according to claim 27.