Prism anti-shake mechanism and camera module

Abstract

The invention provides a prism anti-shake mechanism and a camera module. The prism anti-shake mechanism comprises a base with a containing space, a prism carrier rotationally arranged on the base, a prism set fixed to the prism carrier, a support and a driving part used for driving the prism carrier to rotate, and the driving part is fixed to the side, close to the prism carrier, of the base; the prism anti-shake mechanism further comprises at least two balls and a connecting assembly providing restoring force for the prism carrier in the moving process. The support comprises a first rail and a second rail. The prism carrier comprises a third track and a fourth track; the extending direction of the third rail and the extending direction of the fourth rail are parallel and spaced. The prism group is mounted in the mounting groove; the two balls are respectively arranged in the first track and the third track and in the second track and the fourth track; when the prism carrier is stressed, the driving piece drives the prism carrier to move in the first direction or the second direction. Compared with the prior art, the prism anti-shake mechanism is good in anti-shake effect.

Description

Technical Field

[0001] This invention relates to the field of camera technology, and in particular to a prism stabilization mechanism and camera module. Background Technology

[0002] Optical image stabilization (OIS) for mobile phone cameras is a platform stabilization technology designed to reduce the impact of hand shake or environmental factors on image stability during photography, often leading to blurry or distorted images. OIS plays a crucial role in this process. It uses purely optical methods to correct and compensate for camera shake. In contrast, mechanical stabilization devices offer higher reliability and produce clearer, more natural images.

[0003] The prism-based image stabilization mechanism in the related technology includes a base, an image stabilization mechanism set in the base, and a prism fixed to the image stabilization mechanism. This image stabilization mechanism has a complex structure and is difficult to manufacture and assemble. It often uses a spring and ball structure, and the spring is prone to breakage and deformation, which may lead to image stabilization failure. At the same time, this image stabilization mechanism uses the same mechanism as the rotation center for image stabilization in two directions, which causes crosstalk during image stabilization in two directions and reduces the image stabilization effect.

[0004] Therefore, it is necessary to provide a new prism stabilization mechanism to solve the above problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a prism anti-shake mechanism with good anti-shake effect.

[0006] To address the aforementioned technical problems, in a first aspect, embodiments of the present invention provide a prism stabilization mechanism, comprising a base with a receiving space, a prism carrier rotatably disposed on the base, a prism assembly fixed to the prism carrier, a bracket fixed to the side of the base away from the prism carrier, and a driving member for driving the prism carrier to rotate, the driving member being fixed to the side of the base near the prism carrier; the prism stabilization mechanism further includes at least two ball bearings and a connecting assembly providing a restoring force to the prism carrier during movement; The support includes a support body fixed to the base, and a first track and a second track formed by recessing the support body inward from the side near the prism carrier; the extension direction of the first track is parallel to and spaced apart from the extension direction of the second track, and the two ends of the connecting component are respectively connected to the support body and the prism carrier; the extension direction of the chord of the arc segment where the first track is located is defined as the first direction. The prism carrier includes a carrier body, a mounting groove formed by the recess of the carrier body, and a third track and a fourth track formed by the recess of the carrier body near the support. The extension direction of the third track is parallel to and spaced apart from the extension direction of the fourth track. The prism assembly is installed in the mounting groove. The extension direction of the chord of the arc segment where the third track is located is defined as the second direction, and the first direction is perpendicular to the second direction. One of the two ball bearings is respectively disposed in the first track and the third track, and the other ball bearing is respectively disposed in the second track and the fourth track. When the prism carrier is subjected to force, the driving member drives the prism carrier to move along the first direction or the second direction.

[0007] Preferably, the first track and the second track are arranged side by side along the first direction; the third track and the fourth track are arranged in a staggered manner along the first direction.

[0008] Preferably, the prism stabilization mechanism further includes a fifth track formed by the indentation of the carrier body on the side near the bracket; the fifth track and the third track are arranged side by side along the second direction, the third track and the fifth track are respectively arranged opposite to the first track, and the fourth track is located between the third track and the fifth track along the first direction; The ball bearings include three, two of which are respectively disposed in the first track and the third track and the second track and the fourth track; the third ball bearing is disposed in the fifth track and the first track.

[0009] Preferably, the prism stabilization mechanism further includes a fifth track and a sixth track formed by the indentation of the carrier body on the side near the bracket; the sixth track and the fourth track are arranged side by side along the second direction, the sixth track and the fifth track are arranged side by side along the first direction, and the fourth track and the third track are arranged side by side along the first direction; The ball bearings include four, two of which are respectively disposed within the first track and the third track and the first track and the fifth track; the other two are respectively disposed within the second track and the fourth track and the second track and the sixth track.

[0010] Preferably, the support further includes a first arc-shaped portion and a second arc-shaped portion that protrude from the side of the support body near the prism carrier; the first track and the second track are respectively formed by the first arc-shaped portion and the second arc-shaped portion being recessed inward; The prism carrier further includes a mounting portion protruding from the carrier body toward the side close to the bracket; the third track, the fourth track, the fifth track and the sixth track are respectively formed in the mounting portion.

[0011] Preferably, the connecting component includes a magnetic magnet and a magnetic pole piece, the magnetic magnet and the magnetic pole piece are facing each other and spaced apart, the magnetic pole piece is located between the first track and the second track, and the magnetic magnet is located between the third track and the fourth track; the magnetic pole piece is fixed to the side of the support body near the carrier body, and the magnetic magnet is fixed to the side of the carrier body near the support body.

[0012] Preferably, the first track and the second track are staggered along the first direction; the third track and the fourth track are arranged side by side along the second direction.

[0013] Preferably, the prism stabilization mechanism further includes a fifth track formed by the side of the support body near the prism carrier recessed inward; the fifth track and the second track are arranged side by side along the first direction, the second track and the fifth track are respectively arranged opposite to the fourth track, and the first track is located between the first track and the fifth track along the second direction; The ball bearings include three, two of which are respectively disposed in the first track and the third track and the second track and the fourth track, and the other ball bearing is disposed in the fourth track and the fifth track.

[0014] Preferably, the driving component includes a first driving assembly and a second driving assembly; the first driving assembly and the second driving assembly are respectively fixed to adjacent sides of the prism carrier; the first driving assembly is used to drive the prism carrier to move along the first track, and the second driving assembly is used to drive the prism carrier to move along the third track.

[0015] Preferably, the first driving assembly includes a first magnet fixed to one side of the prism carrier and a first driving coil fixed to the base, wherein the first driving coil is disposed opposite to the first magnet; The second driving assembly includes a second magnet fixed to an adjacent side of the prism carrier and a second driving coil fixed to the base, the second driving coil being disposed opposite to the second magnet.

[0016] Preferably, the base includes a base body, a first sidewall formed by bending and extending from opposite sides of the base body toward the side closer to the prism carrier, and a second sidewall and a third sidewall formed by bending and extending from the other opposite sides of the base body toward the side closer to the prism carrier; the second sidewall is provided with a first through groove therethrough, the bracket is installed in the first through groove, the first drive coil is fixed to the side of the first sidewall closer to the prism carrier, and the second drive coil is fixed to the side of the base body closer to the prism carrier.

[0017] Preferably, the prism stabilization mechanism further includes a first lens, which is fixed to the base, and the incident surface of the first lens is spaced apart from the exiting surface of the prism assembly.

[0018] Preferably, the prism stabilization mechanism further includes a second lens, which is fixed to the base and is spaced apart from the first lens on the side away from the prism carrier; the exit surface of the first lens corresponds to the incident surface of the second lens, and light rays exit the base from the exit surface of the second lens; the first lens and the second lens are located on the same optical axis.

[0019] Preferably, the prism stabilization mechanism further includes a fixing seat, which is mounted on the base and forms a sliding connection, and the second lens is fixed to the base.

[0020] Preferably, the prism image stabilization mechanism further includes a third driving component, which includes a third driving coil and a third magnet; the third magnet is fixed to the side of the fixing base near the base, the third driving coil is fixed to the base, the third driving coil and the third magnet are spaced apart, and the third driving coil drives the third magnet to move along the direction of the optical axis after being energized to achieve focusing.

[0021] Preferably, the prism stabilization mechanism further includes sensors, which are spaced apart on the side of the second lens away from the first lens.

[0022] Preferably, the prism anti-shake mechanism further includes a circuit board, which is fixed to the outside of the base and electrically connected to the driving component and the third driving assembly.

[0023] Secondly, embodiments of the present invention also provide a camera module, the camera module including the prism stabilization mechanism as described above.

[0024] Compared with related technologies, the prism stabilization mechanism of the present invention uses a prism carrier on a base for mounting the prism, and a support on the side of the base away from the prism carrier, with a drive component fixed to the side of the base near the prism carrier to drive the prism carrier to rotate; the prism stabilization mechanism also includes at least two ball bearings and a connecting component that provides restoring force to the prism carrier during movement; a first track and a second track are provided on the support, and a third track and a fourth track are provided on the prism carrier, by placing one of the two ball bearings in the first track and the third track respectively, and the other ball bearing in the second track and the fourth track respectively; when the prism... When the prism carrier is subjected to force, the driving component drives the prism carrier to move along the first or second direction; the first and third tracks, and the second and fourth tracks limit the movement of the prism carrier, and with the help of two ball bearings, crosstalk between the two directions can be avoided during image stabilization; at the same time, the track and ball bearing structure is more reliable and has better performance, while avoiding the deformation and breakage of the spring sheet that would cause image stabilization failure; this structure has fewer ball bearings, and they are single-layer ball bearings, resulting in fewer parts and a smaller overall size, which is in line with the trend of miniaturization of mobile phone cameras; the overall structure is simple and easy to assemble, avoiding the risks associated with complex assembly processes. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a three-dimensional structural diagram of the prism stabilization mechanism provided in Embodiment 1 of the present invention; Figure 2 A partially exploded view of the prism stabilization mechanism provided in Embodiment 1 of the present invention. Figure 1 ; Figure 3 A partially exploded view of the prism stabilization mechanism provided in Embodiment 1 of the present invention. Figure 2 ; Figure 4 For along Figure 1 Sectional view of line AA in the middle; Figure 5 This is a schematic diagram of the base of the prism stabilization mechanism provided in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the support structure of the prism stabilization mechanism provided in Embodiment 1 of the present invention; Figure 7 This is a schematic diagram of the prism carrier of the prism stabilization mechanism provided in Embodiment 1 of the present invention; Figure 8 This is a partially exploded structural diagram of the three ball bearings of the prism stabilization mechanism provided in Embodiment 1 of the present invention. Figure 9 This is an exploded view of the prism stabilization mechanism provided in Embodiment 2 of the present invention; Figure 10 This is a schematic diagram of the support structure of the prism stabilization mechanism provided in Embodiment 2 of the present invention; Figure 11 This is a schematic diagram of the side-by-side arrangement defined in the prism stabilization mechanism provided in the embodiments of the present invention; Figure 12 This is a schematic diagram of the staggered arrangement defined in the prism stabilization mechanism provided in the embodiment of the present invention.

[0026] In the figure, 100, the prism stabilization mechanism of Embodiment 1; 1, base; 101, base body; 102, first sidewall; 103, second sidewall; 104, third sidewall; 105, first through groove; 106, second through groove; 107, first through hole; 108, second through hole; 109, third through hole; 2, prism carrier; 21, carrier body; 22, mounting groove; 23, mounting part; 24, third track; 25, fourth track; 26, fifth track; 27, sixth track; 3, prism assembly; 4, bracket; 41, bracket body; 42, arc-shaped part; 421, first arc-shaped part; 422, etc. 43. First track, 44. Second track, 5. Drive component, 51. First drive assembly, 511. First drive coil, 512. First magnet, 52. Second drive assembly, 521. Second drive coil, 522. Second magnet, 6. Ball bearing, 7. Connecting assembly, 71. Magnetic magnet, 72. Magnetic pole piece, 8. First rotating shaft, 9. First lens, 10. Second lens, 11. Fixing base, 12. Third drive assembly, 121. Third drive coil, 122. Third magnet, 13. Sensor, 14. Circuit board, 15. Housing, 16. Second rotating shaft; 200. Prism anti-shake mechanism of embodiment 2, 24a, third track, 25a, fourth track, 43a, first track, 44a, second track, 45a, fifth track. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1 Please see Figures 1-8 As shown, this embodiment of the invention provides a prism stabilization mechanism 100, including a base 1 with a receiving space, a prism carrier 2 rotatably disposed on the base 1, a prism assembly 3 fixed to the prism carrier 2, a bracket 4 fixed to the side of the base 1 away from the prism carrier 2, and a driving member 5 for driving the prism carrier 2 to rotate, the driving member 5 being fixed to the side of the base 1 near the prism carrier 2. The base 1 is used to mount the prism carrier 2, the bracket 4, and the driving member 5.

[0029] The prism stabilization mechanism 100 also includes at least two ball bearings 6 and a connecting component 7 that provides restoring force to the prism carrier 2 during movement.

[0030] The support 4 includes a support body 41 fixed to the base 1, and a first track 43 and a second track 44 formed by recessing the support body 41 towards the prism carrier 2. The extension direction of the first track 43 is parallel to and spaced apart from the extension direction of the second track 44. The two ends of the connecting component 7 are respectively connected to the support body 41 and the prism carrier 2. The extension direction of the chord of the arc segment containing the first track 43 is defined as the first direction. The chord of the arc segment containing the first track 43 is the line connecting the two endpoints of the arc segment.

[0031] The prism carrier 2 includes a carrier body 21, a mounting groove 22 formed by the recess of the carrier body 21, and a third track 24 and a fourth track 25 formed by the recess of the carrier body 21 near the support 4. The extension direction of the third track 24 is parallel to the extension direction of the fourth track 25 and they are spaced apart from each other. The prism assembly 3 is installed in the mounting groove 22. The extension direction of the chord of the arc segment containing the third track 24 is defined as the second direction, and the first direction is perpendicular to the second direction. One of the two ball bearings 6 is respectively disposed in the first track 43 and the third track 24, and the other ball bearing 6 is respectively disposed in the second track 44 and the fourth track 25. When the prism carrier 2 is subjected to force, the driving member 5 drives the prism carrier 2 to move along the first direction or the second direction. The second rotation axis 16 is parallel to the first direction, the first rotation axis 8 is parallel to the second direction, and the second rotation axis 16 and the first rotation axis 8 are perpendicular to each other. In this embodiment, the first direction is the Y-axis direction, and the second direction is the X-axis direction.

[0032] The connecting component 7 provides restoring force to the bracket 4 and the prism carrier 2, thus fixing the ball bearings 6. The first track 43 and the third track 24, and the second track 44 and the fourth track 25 limit the movement of the prism carrier 2, and together with the two ball bearings 6, crosstalk in two directions during image stabilization is avoided. Simultaneously, the track and ball bearing 6 structure is more reliable and performs better, while avoiding the deformation and breakage of springs that could lead to image stabilization failure. This structure has fewer ball bearings 6, and they are a single layer, resulting in fewer components and a smaller overall size, aligning with the miniaturization trend of mobile phone cameras. The overall structure is simple and easy to assemble, avoiding the risks associated with complex assembly processes.

[0033] Optionally, the first track 43 to the fourth track 25 are all arc-shaped track groove structures, which facilitates the installation of the ball bearings 6 and provides good rolling effect.

[0034] In this embodiment, the first track 43 and the second track 44 are arranged side by side along the first direction; the third track 24 and the fourth track 25 are arranged in a staggered manner along the first direction. By arranging the first track 43 and the second track 44 side by side along the first direction, with the third track 24 directly opposite the first track 43 and the fourth track 25 directly opposite the second track 44, and then staggering the third track 24 and the fourth track 25 along the first direction, the two ball bearings 6 are respectively spaced apart along the second direction, resulting in good movement of the prism carrier 2. Optionally, the third track 24 and the fourth track 25 can also be arranged side by side along the first direction.

[0035] It should be noted that, in this embodiment, the terms "side-by-side" or "staggered" are defined as follows. When the definition refers to side-by-side or staggered arrangement along a certain direction, please refer to... Figure 11 As shown, for example, Figure 11 Two components, A and B, are set up. When viewed along a first direction, A and B are in the same row; that is, when A and B are projected along a direction perpendicular to the first direction, the projections of A and B overlap. Therefore, A and B are defined as being placed side-by-side along the first direction. For example... Figure 12 As shown, for example Figure 12 Two components, A and B, are set up. When A and B are viewed along the first direction, A and B are not in the same row or column. That is, when A and B are projected along a direction perpendicular to the first direction, the projections of A and B do not overlap. When A and B are projected along the first direction, the projections of A and B do not overlap. Therefore, A and B are defined as being staggered along the first direction.

[0036] In this embodiment, the prism stabilization mechanism 100 further includes a fifth track 26 formed by the indentation of the carrier body 21 on the side near the support 4; the fifth track 26 and the third track 24 are arranged side by side along the second direction, the third track 24 and the fifth track 26 are respectively arranged opposite to the first track 43, and the fourth track 25 is located between the third track 24 and the fifth track 26 along the first direction.

[0037] like Figure 8 As shown, the ball bearing 6 comprises three balls, two of which are respectively disposed within the first track 43 and the third track 24, and the second track 44 and the fourth track 25; the third ball bearing 6 is disposed within the fifth track 26 and the first track 43. The third track 24, the fourth track 25, and the fifth track 26 together serve as the second rotation axis, allowing for the installation of three balls 6. The balls 6 provide good support, resulting in good vibration damping of the prism carrier 2.

[0038] In this embodiment, the prism stabilization mechanism 100 further includes a fifth track 26 and a sixth track 27 formed by the indentation of the carrier body 21 on the side near the support 4; the sixth track 27 and the fourth track 25 are arranged side by side along the second direction, the sixth track 27 and the fifth track 26 are arranged side by side along the first direction, and the fourth track 25 and the third track 24 are arranged side by side along the first direction.

[0039] like Figure 3 and Figure 7 As shown, the ball bearings 6 include four, with two balls 6 respectively disposed within the first track 43 and the third track 24, and within the first track 43 and the fifth track 26; the other two balls 6 are respectively disposed within the second track 44 and the fourth track 25, and within the second track 44 and the sixth track 27. Specifically, by distributing the four balls 6 within the first track 43 and the second track 44, with two balls 6 in each track, and by spacing the four balls 6 in pairs along the first and second directions, the contact area between the balls 6 and the first and second tracks 43 and 44 is increased, which avoids crosstalk in the two directions during the anti-shake process, resulting in better anti-shake performance of the prism carrier 2 during movement.

[0040] In this embodiment, the support 4 further includes a first arcuate portion 421 and a second arcuate portion 422 extending protruding from the support body 41 near the prism carrier 2; the first track 43 and the second track 44 are respectively formed by inwardly recessing the first arcuate portion 421 and the second arcuate portion 422. The prism carrier 2 also includes a mounting portion 23 extending from the carrier body 21 near the support 4; the third track 24, the fourth track 25, the fifth track 26 and the sixth track 27 are respectively formed in the mounting portion 23.

[0041] In this embodiment, the connecting component 7 includes a magnetic attracting magnet 71 and a magnetic pole piece 72. The magnetic attracting magnet 71 and the magnetic pole piece 72 are directly opposite each other and spaced apart. The magnetic pole piece 72 is located between the first track 43 and the second track 44, and the magnetic attracting magnet 71 is located between the third track 24 and the fourth track 25. The magnetic pole piece 72 is fixed to the side of the support body 41 near the carrier body 21, and the magnetic attracting magnet 71 is fixed to the side of the carrier body 21 near the support body 41. The magnetic attracting magnet 71 and the magnetic pole piece 72 attract each other, causing the first track 43 and the third track 24 to move closer together and press and fix the ball bearing 6 inside them. The ball bearing 6 has a good limiting effect, preventing it from falling off during the movement of the prism carrier 2, thus ensuring high safety.

[0042] In other embodiments, the connecting component 7 may also be connected by an elastic element, etc., which will not be described in detail here.

[0043] In this embodiment, the driving component 5 includes a first driving component 51 and a second driving component 52; the first driving component 51 and the second driving component 52 are respectively fixed to adjacent sides of the prism carrier 2; the first driving component 51 is used to drive the prism carrier 2 to move along the first track 43, and the second driving component 52 is used to drive the prism carrier 2 to move along the third track 24.

[0044] In this embodiment, the first driving assembly 51 includes a first magnet 512 fixed to one side of the prism carrier 2 and a first driving coil 511 fixed to the base 1. The first driving coil 511 and the first magnet 512 are arranged opposite to each other. Two first magnets 512 are arranged side-by-side and embedded within the prism carrier 2. By energizing the first driving coil 511 and mutually driving the first magnets 512, the prism carrier 2 is driven to move along the first track 43 around the first rotation axis 8, achieving a first-direction anti-shake function.

[0045] The second driving assembly 52 includes a second magnet 522 fixed to an adjacent side of the prism carrier 2 and a second driving coil 521 fixed to the base 1. The second driving coil 521 and the second magnet 522 are arranged opposite to each other. Two second magnets 522 are arranged side-by-side and embedded within the prism carrier 2. By energizing the second driving coil 521 and mutually driving the second magnets 522, the prism carrier 2 is driven to move along the third track 24 around the second rotation axis 16, thus achieving a second-direction anti-shake function.

[0046] In this embodiment, the base 1 includes a base body 101, a first sidewall 102 formed by bending and extending from opposite sides of the base body 101 toward the side closer to the prism carrier 2, and a second sidewall 103 and a third sidewall 104 formed by bending and extending from the other opposite sides of the base body 101 toward the side closer to the prism carrier 2. The second sidewall 103 is provided with a first through groove 105, the bracket 4 is installed in the first through groove 105, the first drive coil 511 is fixed to the side of the first sidewall 102 near the prism carrier 2, and the second drive coil 521 is fixed to the side of the base body 101 near the prism carrier 2.

[0047] In this embodiment, the prism stabilization mechanism 100 further includes a first lens 9, which is fixed to the base 1, and the incident surface of the first lens 9 is spaced apart from the exiting surface of the prism group 3.

[0048] In this embodiment, the prism stabilization mechanism 100 further includes a second lens 10, which is fixed to the base 1. The second lens 10 is spaced apart from the first lens 9 on the side away from the prism carrier 2. The exit surface of the first lens 9 corresponds to the incident surface of the second lens 10, and light rays exit the base 1 from the exit surface of the second lens 10. The first lens 9 and the second lens 10 are located on the same optical axis, which is the Z-axis direction.

[0049] In this embodiment, the prism image stabilization mechanism 100 further includes a fixing base 11, which is mounted on the base 1 and forms a sliding connection. The second lens 10 is fixed to the base 1. The position of the second lens 10 is adjusted by moving the fixing base 11, thereby achieving the focusing function. Optionally, the fixing base 11 and the base 1 can also form a rolling connection, producing the same effect.

[0050] In this embodiment, the prism image stabilization mechanism 100 further includes a third driving component 12, which includes a third driving coil 121 and a third magnet 122. The third magnet 122 is fixed to the side of the fixing base 11 near the base 1, and the third driving coil 121 is fixed to the base 1. The third driving coil 121 and the third magnet 122 are spaced apart from each other. When the third driving coil 121 is energized, it drives the third magnet 122 to move along the direction of the optical axis to achieve focusing. Both the first direction and the second direction are perpendicular to the optical axis. In this embodiment, the third sidewall 104 is provided with a second through groove 106, the first sidewall 102 is provided with a first through hole 107 and a third through hole 109, the base body 101 is provided with a second through hole 108, the third driving assembly 12 is disposed in the second through groove 106, the first driving coil 511 is disposed in the first through hole 107, the second driving coil 521 is disposed in the second through hole 108, and the third driving coil 121 is disposed in the third through hole 109, and the whole is well packaged.

[0051] In this embodiment, the prism stabilization mechanism 100 further includes a sensor 13, which is spaced apart on the side of the second lens 10 away from the first lens 9.

[0052] In this embodiment, the prism stabilization mechanism 100 further includes a circuit board 14, which is fixed to the outside of the base 1 and electrically connected to the drive component 5 and the third drive assembly 12. An external power supply is connected to the side of the circuit board 14 away from the base 1, facilitating power supply to the first drive coil 511, the second drive coil 521, and the third drive coil 121 respectively.

[0053] Optionally, circuit board 14 is an FPC circuit board, which has good conductivity, a flexible structure, and is easy to install.

[0054] In this embodiment, the base 1 is made by the Insert (Insert Molding) molding process. The required circuit board 14 is arranged inside the base 1 by the Insert molding process, which reduces the number of product parts and saves assembly steps.

[0055] Example 2 Please see Figures 1-10As shown, this embodiment of the invention also provides a prism stabilization mechanism 200. This second embodiment is basically the same as the first embodiment, except that the first track 43a and the second track 44a are staggered along the first direction; the third track 24a and the fourth track 25a are arranged side by side along the second direction. The second rotation axis 16 is parallel to the second direction, the first rotation axis 8 is parallel to the first direction, and the second rotation axis 16 and the first rotation axis 8 are perpendicular to each other. In this embodiment, the second direction is the Y-axis direction, and the first direction is the X-axis direction.

[0056] In this embodiment, the prism stabilization mechanism 200 further includes a fifth track 45a formed by the bracket body 41 recessed inward from the side near the prism carrier 2; the fifth track 45a and the second track 44a are arranged side by side along the first direction, the second track 44a and the fifth track 45a are respectively arranged opposite to the fourth track 25a, and the first track 43a is located between the second track 44a and the fifth track 45a along the second direction.

[0057] The ball bearing 6 comprises three balls, two of which are respectively disposed within the first track 43a and the third track 24a, and the second track 44a and the fourth track 25a, and the third ball bearing 6 is disposed within the fourth track 25a and the fifth track 45a. By using the three balls 6 as supports, the three support points can be kept coplanar at all times, reducing shaking or jumping during the rotation of the prism carrier 2.

[0058] Specifically, the third track 24a and the fourth track 25a, which rotate around the first rotation axis 8, are placed on the prism carrier 2. This reduces the overall rotation radius, thereby reducing the rotation amplitude of the friction arm and the magnetic magnet 71 in the prism carrier 2, thus reducing the magnetic restoring torque, the drive coil current, and the power consumption. At the same height of the prism carrier 2, the larger the arc corresponding to the third track 24a and the fourth track 25a rotating around the first rotation axis 8, the greater the component of the magnetic attraction force in the second direction under the magnetic attraction force of the magnetic pole piece 72 in the support 4, which can better resist the overturning of the prism carrier 2 in the second direction. By mounting the first track 43a and the second track 44a, which rotate around the second rotation axis 16, on the support 4, the space in the support 4 in the first direction is increased. This allows for two second tracks 44a and a fifth track 45a rotating around the second direction on one side, and a first track 43a rotating around the second direction on the other side. This allows the balls 6 on both sides to be further apart, enabling the magnetic pole piece 72 in the support 4 to attract the prism carrier 2 and better adhere it to the balls 6. Replacing the magnetic magnet 71 rotating around the first direction in the prism carrier 2 with a Helix shell magnet further concentrates the magnetic field on the coil side. This results in a greater driving force for the coil under the same current, reducing the driving current and thus the driving power consumption. Sharing three balls 6 within the tracks reduces the size of the module.

[0059] Example 3 This invention also provides a camera module, which includes the prism stabilization mechanism as described in Embodiments 1 and 2 above.

[0060] Compared with related technologies, the prism stabilization mechanism of the present invention uses a prism carrier on a base for mounting the prism, and a support on the side of the base away from the prism carrier, with a drive component fixed to the side of the base near the prism carrier to drive the prism carrier to rotate; the prism stabilization mechanism also includes at least two ball bearings and a connecting component that provides restoring force to the prism carrier during movement; a first track and a second track are provided on the support, and a third track and a fourth track are provided on the prism carrier, by placing one of the two ball bearings in the first track and the third track respectively, and the other ball bearing in the second track and the fourth track respectively; when the prism... When the prism carrier is subjected to force, the driving component drives the prism carrier to move along the first or second direction; the first and third tracks, and the second and fourth tracks limit the movement of the prism carrier, and with the help of two ball bearings, crosstalk between the two directions can be avoided during image stabilization; at the same time, the track and ball bearing structure is more reliable and has better performance, while avoiding the deformation and breakage of the spring sheet that would cause image stabilization failure; this structure has fewer ball bearings, and they are single-layer ball bearings, resulting in fewer parts and a smaller overall size, which is in line with the trend of miniaturization of mobile phone cameras; the overall structure is simple and easy to assemble, avoiding the risks associated with complex assembly processes.

[0061] The above description is merely an embodiment of the present invention. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of the present invention, but these improvements all fall within the protection scope of the present invention.

Claims

1. A prism stabilization mechanism, comprising a base having a receiving space, a prism carrier rotatably disposed on the base, a prism assembly fixed to the prism carrier, a bracket fixed to the side of the base away from the prism carrier, and a driving member for driving the prism carrier to rotate, the driving member being fixed to the side of the base near the prism carrier; characterized in that, The prism stabilization mechanism also includes at least two ball bearings and a connecting component that provides the restoring force of the prism carrier during movement; The support includes a support body fixed to the base, and a first track and a second track formed by recessing the support body inward from the side near the prism carrier; the extension direction of the first track is parallel to and spaced apart from the extension direction of the second track, and the two ends of the connecting component are respectively connected to the support body and the prism carrier; the extension direction of the chord of the arc segment where the first track is located is defined as the first direction. The prism carrier includes a carrier body, a mounting groove formed by the recess of the carrier body, and a third track and a fourth track formed by the recess of the carrier body near the support. The extension direction of the third track is parallel to and spaced apart from the extension direction of the fourth track. The prism assembly is installed in the mounting groove. The extension direction of the chord of the arc segment where the third track is located is defined as the second direction, and the first direction is perpendicular to the second direction. One of the two ball bearings is respectively disposed in the first track and the third track, and the other ball bearing is respectively disposed in the second track and the fourth track. When the prism carrier is subjected to force, the driving member drives the prism carrier to move along the first direction or the second direction.

2. The prism stabilization mechanism according to claim 1, characterized in that, The first track and the second track are arranged side by side along the first direction; the third track and the fourth track are arranged in a staggered manner along the first direction.

3. The prism stabilization mechanism according to claim 2, characterized in that, The prism stabilization mechanism further includes a fifth track formed by the indentation of the carrier body on the side near the bracket; the fifth track and the third track are arranged side by side along the second direction, the third track and the fifth track are respectively arranged opposite to the first track, and the fourth track is located between the third track and the fifth track along the first direction; The ball bearings include three, two of which are respectively disposed in the first track and the third track and the second track and the fourth track; the third ball bearing is disposed in the fifth track and the first track.

4. The prism stabilization mechanism according to claim 1, characterized in that, The prism stabilization mechanism further includes a fifth track and a sixth track formed by the indentation of the carrier body on the side near the bracket; the sixth track and the fourth track are arranged side by side along the second direction, the sixth track and the fifth track are arranged side by side along the first direction, and the fourth track and the third track are arranged side by side along the first direction. The ball bearings include four, two of which are respectively disposed within the first track and the third track and the first track and the fifth track; the other two are respectively disposed within the second track and the fourth track and the second track and the sixth track.

5. The prism stabilization mechanism according to claim 4, characterized in that, The support also includes a first arc-shaped portion and a second arc-shaped portion that protrude from the side of the support body near the prism carrier; the first track and the second track are respectively formed by the first arc-shaped portion and the second arc-shaped portion being recessed inward; The prism carrier further includes a mounting portion protruding from the carrier body toward the side close to the bracket; the third track, the fourth track, the fifth track and the sixth track are respectively formed in the mounting portion.

6. The prism stabilization mechanism according to claim 1, characterized in that, The connecting component includes a magnetic magnet and a magnetic pole piece. The magnetic magnet and the magnetic pole piece are opposite each other and spaced apart. The magnetic pole piece is located between the first track and the second track, and the magnetic magnet is located between the third track and the fourth track. The magnetic pole piece is fixed to the side of the support body near the carrier body, and the magnetic magnet is fixed to the side of the carrier body near the support body.

7. The prism stabilization mechanism according to claim 1, characterized in that, The first track and the second track are staggered along the first direction; the third track and the fourth track are arranged side by side along the second direction.

8. The prism stabilization mechanism according to claim 7, characterized in that, The prism stabilization mechanism further includes a fifth track formed by the side of the support body near the prism carrier recessed inward; the fifth track and the second track are arranged side by side along the first direction, the second track and the fifth track are respectively arranged opposite to the fourth track, and the first track is located between the first track and the fifth track along the second direction; The ball bearings include three, two of which are respectively disposed in the first track and the third track and the second track and the fourth track, and the other ball bearing is disposed in the fourth track and the fifth track.

9. The prism stabilization mechanism according to claim 1, characterized in that, The driving component includes a first driving assembly and a second driving assembly; the first driving assembly and the second driving assembly are respectively fixed to adjacent sides of the prism carrier; the first driving assembly is used to drive the prism carrier to move along the first track, and the second driving assembly is used to drive the prism carrier to move along the third track.

10. The prism stabilization mechanism according to claim 9, characterized in that, The first driving assembly includes a first magnet fixed to one side of the prism carrier and a first driving coil fixed to the base, wherein the first driving coil is disposed opposite to the first magnet; The second driving assembly includes a second magnet fixed to an adjacent side of the prism carrier and a second driving coil fixed to the base, the second driving coil being disposed opposite to the second magnet.

11. The prism stabilization mechanism according to claim 10, characterized in that, The base includes a base body, a first sidewall formed by bending and extending from opposite sides of the base body toward the side closer to the prism carrier, and a second sidewall and a third sidewall formed by bending and extending from the other opposite sides of the base body toward the side closer to the prism carrier; the second sidewall has a first through groove therethrough, the bracket is installed in the first through groove, the first drive coil is fixed to the side of the first sidewall closer to the prism carrier, and the second drive coil is fixed to the side of the base body closer to the prism carrier.

12. The prism stabilization mechanism according to claim 1, characterized in that, The prism stabilization mechanism further includes a first lens, which is fixed to the base, and the incident surface of the first lens is spaced apart from the exiting surface of the prism assembly.

13. The prism stabilization mechanism according to claim 12, characterized in that, The prism stabilization mechanism further includes a second lens, which is fixed to the base and is spaced apart from the first lens on the side away from the prism carrier. The exit surface of the first lens corresponds to the incident surface of the second lens, and light rays exit the base from the exit surface of the second lens. The first lens and the second lens are located on the same optical axis.

14. The prism stabilization mechanism according to claim 13, characterized in that, The prism stabilization mechanism also includes a mounting base, which is mounted on the base and forms a sliding connection, and the second lens is fixed to the base.

15. The prism stabilization mechanism according to claim 14, characterized in that, The prism image stabilization mechanism further includes a third drive assembly, which includes a third drive coil and a third magnet. The third magnet is fixed to the side of the mounting base near the base, and the third drive coil is fixed to the base. The third drive coil and the third magnet are spaced apart from each other. When the third drive coil is energized, it drives the third magnet to move along the direction of the optical axis to achieve focusing.

16. The prism stabilization mechanism according to claim 13, characterized in that, The prism stabilization mechanism also includes sensors, which are spaced apart on the side of the second lens away from the first lens.

17. The prism stabilization mechanism according to claim 15, characterized in that, The prism anti-shake mechanism also includes a circuit board, which is fixed to the outside of the base and electrically connected to the drive component and the third drive assembly.

18. A camera module, characterized in that, The camera module includes a prism stabilization mechanism as described in any one of claims 1-17.

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