Actuator, camera module and electronic equipment
Through the cooperation of the cross-axis structure and electromagnetic components, the independent rotation of the lens in the camera module in the two orthogonal directions is achieved, solving the problems of high friction and high driving demand in the prior art, and improving the anti-shake effect.
Patent Information
- Application Number
- CN202422473385.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-12
AI Technical Summary
In the prior art, when the camera module realizes the anti-shake function, it is difficult to effectively control the independent rotation of the lens in multiple orthogonal directions, and there is a problem of high friction and high driving demand.
The cross-axis structure is adopted, and the arc-shaped inner walls of the first guide groove and the second guide groove are tangentially driven by the electromagnetic assembly to the rotation of the rotor in two orthogonal directions, reducing friction and simplifying control logic.
The independent rotation of the mover and the stator in two orthogonal directions is achieved, which reduces the frictional demand, simplifies driving control, and improves the anti-shake performance of the camera module.
Smart Images
Figure CN223297657U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of terminal technology, and in particular to an actuator, a camera module, and an electronic device. Background Art
[0002] In some use cases in mechanical structures, it is necessary to limit the directions of the degrees of freedom of relative motion. For example, in the process of implementing the anti-shake function of a camera module, it is necessary to control the rotation of some lenses in a set of orthogonal directions to achieve anti-shake. Utility Model Content
[0003] The present disclosure provides an actuator, a camera module, and an electronic device to address deficiencies in related technologies.
[0004] According to a first aspect of an embodiment of the present disclosure, there is provided an actuator, comprising:
[0005] A mover, the mover comprising a first guide groove;
[0006] a stator, the stator comprising a second guide slot;
[0007] A cross shaft, the cross shaft comprising a first shaft and a second shaft fixedly connected, the first shaft and the second shaft being arranged orthogonally, the first shaft passing through the first guide slot and rotatably engaged with the first guide slot, the second shaft passing through the second guide slot and rotatably engaged with the second guide slot;
[0008] a driving member, the driving member being used to drive the mover to rotate relative to the stator around a first rotation axis, or to drive the mover and the cross-rotation shaft to rotate relative to the stator around a second rotation axis at any time;
[0009] Wherein, the first guide groove includes a first arc-shaped inner wall, and the first arc-shaped inner wall is arranged tangent to the first rotating shaft; and / or the second guide groove includes a second arc-shaped inner wall, and the second arc-shaped inner wall is arranged tangent to the second rotating shaft.
[0010] Optionally, the first guide groove includes two symmetrically arranged first arc-shaped inner walls, and the two first arc-shaped inner walls are respectively arranged tangent to the first rotating shaft.
[0011] Optionally, the second guide groove includes two symmetrically arranged second arc-shaped inner walls, and the two second arc-shaped inner walls are respectively arranged tangent to the second rotating shaft.
[0012] Optionally, the recessed directions of the first guide groove and the second guide groove are parallel and opposite.
[0013] Optionally, the stator includes an open end and a first avoidance cavity connected to the open end, the mover is at least partially arranged in the first avoidance cavity, the stator includes a second avoidance cavity, the second rotating shaft passes through the second avoidance cavity, and the second avoidance cavity is used to avoid the second rotating shaft when the mover rotates around the first rotating shaft.
[0014] Optionally, the mover further includes at least one convex portion extending toward the interior of the second avoidance cavity, and the convex portion contacts and limits the second rotating shaft.
[0015] Optionally, the driving member includes:
[0016] a first electromagnetic assembly, the first electromagnetic assembly comprising a first coil and a first magnet disposed opposite to each other, the axial direction of the first coil being parallel to the axial direction of the first rotating shaft, one of the first coil and the first magnet being fixed relative to the stator, and the other being fixed relative to the mover;
[0017] a second electromagnetic assembly, the second electromagnetic assembly comprising a second coil and a second magnet arranged opposite to each other, the axial direction of the second coil being arranged parallel to the axial direction of the second rotating shaft, one of the second coil and the second magnet being fixed relative to the stator, and the other being fixed relative to the mover, the polarity arrangement directions of the first magnet and the second magnet being parallel, and the axial direction of the first rotating shaft, the axial direction of the second rotating shaft, and the polarity arrangement directions being arranged perpendicularly to each other;
[0018] The first coil and the first magnet interact to drive the mover to rotate around a first rotation axis relative to the stator, and the second coil and the second magnet interact to drive the mover to rotate around a second rotation axis relative to the stator.
[0019] Optionally, the actuator includes an even number of first electromagnetic components, and the even number of first electromagnetic components are separated into an axially symmetrical distribution about the second rotation axis.
[0020] Optionally, the actuator includes an even number of second electromagnetic components, and the even number of second electromagnetic components are separated into an axially symmetrical distribution about the first rotation axis.
[0021] Optionally, a third electromagnetic assembly is further included, the third electromagnetic assembly including a third coil and a third magnet arranged opposite to each other, the axial direction of the third coil being perpendicular to the axial directions of the first rotating shaft and the second rotating shaft, one of the third coil and the third magnet being fixed relative to the stator, and the other being fixed relative to the mover;
[0022] The third coil interacts with the third magnet to drive the mover to rotate axially relative to the stator around the first rotation axis, or drives the mover to rotate axially relative to the stator around the second rotation axis.
[0023] Optionally, the mover is at least partially disposed in the second avoidance cavity, and the first magnet, the second magnet and the third magnet are all fixedly disposed on a surface of the mover facing the inner wall of the stator;
[0024] The stator includes a plurality of through slots, and the actuator further includes a plurality of circuit boards, each of the circuit boards is connected to the stator, and the plurality of circuit boards cover the plurality of through slots in a one-to-one correspondence;
[0025] The first coil, the second coil and the third coil are respectively electrically connected to any one of the circuit boards and are at least partially located in the corresponding through slots.
[0026] Optionally, at least one position sensor is further included, each of the position sensors is electrically connected to any of the circuit boards, and the position sensor is used to output an electrical signal for determining the position information of the mover.
[0027] Optionally, there are multiple position sensors, at least one of which is used to output an electrical signal for determining the rotation amount of the mover around the first rotation axis, and at least one position sensor is used to output an electrical signal for determining the rotation amount of the mover around the second rotation axis.
[0028] According to a second aspect of an embodiment of the present disclosure, there is provided a camera module, including:
[0029] In the actuator according to any one of the above embodiments, the mover includes a mounting cavity;
[0030] a lens assembly, wherein the lens assembly is fixedly disposed in the mounting cavity, and a light incident direction of the lens assembly, an axial direction of the first rotating shaft, and an axial direction of the second rotating shaft are orthogonal to each other;
[0031] An imaging component, wherein the light incident surface of the imaging component is arranged toward the light emitting surface of the lens group, and the imaging component and the stator are fixedly arranged relative to each other.
[0032] According to a third aspect of the embodiments of the present disclosure, an electronic device is provided, comprising the camera module as described in any one of the above embodiments.
[0033] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects:
[0034] It can be seen from the above embodiments that the present invention realizes the rotation of the mover and the stator in two orthogonal directions through a cross-rotating shaft, and the movements in the two orthogonal directions are relatively independent without crosstalk; and the tangent setting of the first arc-shaped inner wall and the second arc-shaped inner wall to the cross-rotating shaft is conducive to reducing the friction during the rotation process.
[0035] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
[0037] Figure 1 is a schematic structural diagram of an actuator according to an exemplary embodiment.
[0038] Figure 2 yes Figure 1 Exploded diagram of the actuator.
[0039] Figure 3 is a schematic structural diagram of another actuator according to an exemplary embodiment.
[0040] Figure 4 yes Figure 3 Schematic diagram of the decomposition of the middle part structure. DETAILED DESCRIPTION
[0041] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
[0042] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
[0043] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining."
[0044] Figure 1 is a simplified structural diagram of an actuator according to an exemplary embodiment. Figure 2 yes Figure 1 Schematic diagram of partial structural decomposition of the actuator. Figure 1 and Figure 2 As shown, the actuator includes a mover 1, a stator 2, a cross shaft 3 and a driving member. The mover 1 includes a first guide groove 11, the stator 2 includes a second guide groove 21, and the cross shaft 3 includes a first shaft 31 and a second shaft 32 that are fixedly connected. The first shaft 31 and the second shaft 32 are arranged orthogonally, and the first shaft 31 passes through the first guide groove 11 and rotates with the first guide groove 11. The second shaft 32 passes through the second guide groove 21 and rotates with the second guide groove 21. The driving member can be used to drive the mover 1 to rotate around the first shaft 31 relative to the stator 2 at any time, or to drive the mover 1 and the cross shaft 3 to rotate around the second shaft 32 relative to the stator 2, so as to realize the rotation of the mover 1 in two orthogonal directions. The depth directions of the first guide groove 11 and the second guide groove 21 are parallel and oppositely arranged, such as Figure 1 and Figure 2 As shown in FIG, the first guide groove 11 of the mover 1 is recessed upward, and the second guide groove 21 of the stator 2 is recessed downward.
[0045] Among them, the first guide groove 11 includes a first arc-shaped inner wall 111, which is arranged tangent to the first rotating shaft 31, so as to achieve line contact between the first rotating shaft 31 and the first arc-shaped inner wall 111, which is beneficial to reducing the friction force during the rotation of the mover 1 relative to the stator 2 around the first rotating shaft 31, thereby reducing the power requirement and reducing the requirements for the driving member; similarly, the second guide groove 21 may include a second arc-shaped inner wall 211, which is arranged tangent to the second rotating shaft 32, so as to achieve line contact between the second rotating shaft 32 and the second arc-shaped inner wall 211, so that the friction force when the second rotating shaft 32 of the cross rotating shaft 3 rotates relative to the stator 2 can be reduced, thereby reducing the power requirement and reducing the requirements for the driving member. It should be noted that, in the same embodiment, the first guide groove 11 may include the first curved inner wall 111 and the second guide groove 21 may include the second curved inner wall 211, or only the first guide groove 11 may include the first curved inner wall 111, or only the second guide groove 21 may include the second curved inner wall 211. The specific design can be as needed, and the present disclosure does not limit this.
[0046] In some embodiments, the first guide groove 11 may include two symmetrically arranged first arcuate inner walls 111, each of which is tangentially arranged to the first rotating shaft 31. This allows the first guide groove 11 to cooperate with the first rotating shaft 31 through the tangency between the two first arcuate inner walls 111 and the first rotating shaft 31, resulting in only two linear contact positions between the first guide groove 11 and the first rotating shaft 31. This minimizes friction between the first rotating shaft 31 and the first guide groove 11 while supporting the first rotating shaft 31. The two first arcuate inner walls 111 may be connected by inner walls or directly connected, and this is not limited in the present disclosure.
[0047] In some embodiments, the second guide groove 21 may include two symmetrically arranged second curved inner walls 211, each of which is tangentially arranged to the second rotating shaft 32. This allows the second guide groove 21 to cooperate with the second rotating shaft 32 through the tangency between the two second curved inner walls 211 and the second rotating shaft 32, resulting in only two linear contact positions between the second guide groove 21 and the second rotating shaft 32. This minimizes friction between the first rotating shaft 31 and the second guide groove 21 while supporting the second rotating shaft 32. The two second curved inner walls 211 may be connected by inner walls or directly connected, and this is not limited in the present disclosure.
[0048] In the above embodiment, if Figure 3 and Figure 4As shown, in order to provide space for the rotation of the mover 1, the stator 2 may further include an open end 22 and a second avoidance cavity 23 connected to the open end 22. The mover 1 may be partially disposed within the second avoidance cavity 23, or may be entirely disposed within the second avoidance cavity 23, or may be disposed outside the second avoidance cavity 23. When the mover 1 rotates relative to the stator 2, the mover 1 is avoided by the second avoidance cavity 23 to avoid interference. The present disclosure does not limit this. Similarly, the mover 1 includes a first avoidance cavity 12, and the second rotating shaft 32 passes through the first avoidance cavity 12, so that when the mover 1 rotates around the first rotating shaft 31, the second rotating shaft 32 can be avoided by the first avoidance cavity 12 to avoid interference.
[0049] Furthermore, the mover 1 also includes at least one protrusion protruding toward the inside of the second avoidance cavity 23, and the protrusion contacts and limits the second rotating shaft 32. Through the setting of the protrusion, the second rotating shaft 32 and the mover 1 can be limited to form a whole, that is, the cross rotating shaft 3 and the mover 1 become a relatively stable whole, which is beneficial for the cross rotating shaft 3 and the mover 1 to rotate around the second rotating shaft 32 relative to the stator 2 in the future.
[0050] In each of the above embodiments, the stator 2 may be a shell structure, such as an integrated open shell, or a split openable shell, and the mover 1 may be used to fix the lens group, such as the mover 1 may include a mounting cavity, such as when the actuator is applied to a camera module, the mounting cavity may be used to assemble the lens group. Optionally, the lens group may also be fixed to the mover 1 by gluing or other means, and the specific shape of the mover 1 is not limited in the present disclosure. Optionally, the lens group may include optical lenses such as prisms and liquid lenses, and the lens group may include a single lens or multiple lenses, which is not limited in the present disclosure. The mover 1 is assembled in the stator 2, and the mover 1 and the stator 2 have the degree of freedom of rotation around the first rotating shaft 31 and the degree of freedom of rotation around the second rotating shaft 32. The axial direction of the first rotating shaft 31 is Figure 4 In the direction indicated by the arrow A, the axial direction of the second rotating shaft 32 is Figure 4 In the direction indicated by the middle arrow B, the axial direction of the first rotating shaft 31, the axial direction of the second rotating shaft 32 and the incident direction of the lens assembly are orthogonal to each other.
[0051] To prevent movement of the mover 1 within the stator 2, the mover 1 and the stator 2 have only one degree of rotational freedom about the first rotation axis 31 and about the second rotation axis 32. A driver can, at any given moment, drive the mover 1 to rotate axially relative to the stator 2 about the first rotation axis 31 or about the second rotation axis 32. The driver can take various forms, such as a motor or a combination of a coil and a magnet, and this disclosure is not intended to limit this.
[0052] For example, Figure 4 As shown, the driving member includes a first electromagnetic component 4 and a second electromagnetic component 5. The number of the first electromagnetic component 4 and the second electromagnetic component 5 can be multiple. Taking one of the first electromagnetic components 4 as an example, the first electromagnetic component 4 includes a first coil 41 and a first magnet 42 that are relatively arranged. The axial direction of the first coil 41 is parallel to the axial direction of the first rotating shaft 31. The first magnet 42 is fixedly arranged relative to the mover 1, and the first coil 41 is fixedly arranged relative to the stator 2. Of course, in other embodiments, the first coil 41 can also be fixedly arranged relative to the mover 1, and the first coil 41 can be fixedly arranged relative to the stator 2. The present disclosure does not limit this.
[0053] Similarly, taking one of the second electromagnetic assemblies 5 as an example, the second electromagnetic assembly 5 includes a second coil 51 and a second magnet 52. The axial direction of the second coil 51 is arranged parallel to the axial direction of the second rotating shaft 32. The second magnet 52 is fixed relative to the mover 1, and the second coil 51 is fixed relative to the stator 2. Of course, in other embodiments, the second coil 51 can also be fixed relative to the mover 1, and the second magnet 52 can be fixed relative to the stator 2. This disclosure is not limited to this. The polarity arrangement direction of the first coil 41 and the polarity arrangement direction of the second magnet 52 are arranged parallel, and the polarity arrangement direction, the axial direction of the first rotating shaft 31, and the axial direction of the second rotating shaft 32 are arranged orthogonally.
[0054] Based on this, the interaction between the first coils 41 and the second coils 41 can drive the mover 1 to rotate axially relative to the stator 2 around the second rotating shaft 32, for example Figure 4 As shown in the figure, taking the actuator including a single first electromagnetic component 4 as an example, when the first electromagnetic component 4 generates an upward force, it can drive the mover 1 to rotate counterclockwise relative to the stator 2 around the axial direction of the second rotating shaft 32. When the first electromagnetic component 4 generates a downward force, it can drive the mover 1 to rotate clockwise relative to the stator 2 around the axial direction of the second rotating shaft 32.
[0055] The interaction between the second coil 51 and the second magnet 52 can drive the mover 1 to rotate axially around the first rotating shaft 31 relative to the stator 2, for example Figure 4 As shown in FIG, the actuator includes two second electromagnetic components 5, and the two second electromagnetic components 5 are symmetrically arranged about the axis of the first rotating shaft 31. Figure 4 The second electromagnetic assembly 5 on the left side generates an upward force, and the second electromagnetic assembly 5 on the right side generates a downward force, which can drive the mover 1 to rotate clockwise relative to the stator 2 around the axial direction of the first rotating shaft 31. Figure 4 The second electromagnetic assembly 5 on the left side generates a downward force, and the second electromagnetic assembly 5 on the right side generates an upward force, which can drive the mover 1 to rotate counterclockwise relative to the stator 2 around the axial direction of the first rotating shaft 31.
[0056] It should be noted that the first electromagnetic components 4 can also be provided in an even number, such as 2, 4, or 6 first electromagnetic components 4, and the even number of first electromagnetic components 4 are symmetrically distributed about the axis of the second rotating shaft 32. This can increase the force acting on the mover 1, which helps to overcome the resistance during the movement of the mover 1. Similarly, the second electromagnetic components 5 can also be provided in an even number, such as 2, 4, or 6 second electromagnetic components 5, and the even number of second electromagnetic components 5 are symmetrically distributed about the axis of the first rotating shaft 31. This can increase the force acting on the mover 1, which helps to overcome the resistance during the movement of the mover 1. In this embodiment, a single first coil 41 is arranged relative to a single first coil 41 as an example. In other embodiments, multiple first coils 41 can also be arranged relative to a single first coil 41. Similarly, a single second coil 51 is arranged relative to a single second magnet 52 as an example. In other implementations, multiple second coils 51 can also be arranged relative to a single second magnet 52. This is not limited in this disclosure.
[0057] Based on this, the first electromagnetic component 4 and the second electromagnetic component 5 can be used to drive the mover 1 to rotate relative to the stator 2, thereby adjusting the relative position relationship between the lens group and the rear-end imaging component to achieve the anti-shake function of the camera module equipped with the actuator. In addition, in this solution, the electromagnetic component that drives the mover 1 to rotate axially around the first rotating shaft 31 and the electromagnetic component that drives the mover 1 to rotate axially around the second rotating shaft 32 are designed independently, which is conducive to simplifying the control logic.
[0058] Further, still Figure 4 As shown, the actuator may further include a third electromagnetic assembly 6, which includes a third coil 61 and a third magnet 62 arranged opposite to each other. The axial direction of the third coil 61 is perpendicular to the axial directions of the first rotating shaft 31 and the second rotating shaft 32. The third magnet 62 is fixed relative to the mover 1, and the third coil 61 is fixed relative to the stator 2. Of course, in other embodiments, the third coil 61 may be fixed relative to the mover 1, and the third magnet 62 may be fixed relative to the stator 2. The interaction between the third coil 61 and the third magnet 62 can drive the mover 1 to rotate axially relative to the stator 2 around the second rotating shaft 32, or can drive the mover 1 to rotate axially relative to the stator 2 around the first rotating shaft 31.
[0059] for example Figure 4As shown in , when the interaction between the third coil 61 and the third magnet 62 generates a force pointing into the paper, combined with the upward force generated by the first electromagnetic component 4, the mover 1 can be driven to rotate counterclockwise relative to the stator 2 around the axial direction of the second rotating shaft 32. When the interaction between the third coil 61 and the third magnet 62 generates a force pointing out of the paper, combined with the downward force generated by the first electromagnetic component 4, the mover 1 can be driven to rotate clockwise relative to the stator 2 around the axial direction of the second rotating shaft 32. Figure 2 The third electromagnetic assembly 6 rotates 90°, and the third electromagnetic assembly 6 and the second electromagnetic assembly 5 can drive the mover 1 to rotate counterclockwise or clockwise relative to the stator 2 around the axial direction of the first rotating shaft 31 through the interaction between the third electromagnetic assembly 6 and the second electromagnetic assembly 5.
[0060] In the above embodiments, the mover 1 is at least partially arranged in the stator 2, and the first coil 41, the second magnet 52 and the third magnet 62 are all fixed on the surface of the mover 1 facing the inner wall of the stator 2; the stator 2 includes a plurality of through slots 24, and the actuator may also include a plurality of circuit boards 7, each circuit board 7 is fixedly connected to the stator 2, and the plurality of circuit boards 7 cover the plurality of through slots 24 one by one, the first coil 41, the second coil 51 and the third coil 61 are respectively electrically connected to any one of the circuit boards 7 and are at least partially located in the corresponding through slots 24, so that the first coil 41, the second coil 51 and the third coil 61 can interact with the first coil 41, the second magnet 52 and the third magnet 62 respectively through the corresponding through slots 24, and in this scheme, the circuit board 7 may not be placed on the outer surface of the stator 2, so as to facilitate signal communication between the circuit board 7 and other circuit boards of the electronic device to which it belongs.
[0061] Furthermore, the actuator may further include a position sensor 8, which may be fixed relative to the stator 2. For example, the position sensor 8 may be provided on a circuit board 7 to achieve relative fixation with the stator 2; or the position sensor 8 may be provided on another corresponding circuit board and fixed relative to the stator 2 via the circuit board. The position sensor 8 may be used to output an electrical signal for determining the position information of the mover 1. The actuator may include one or more position sensors 8, and each position sensor 8 may be electrically connected to any circuit board 7, such as Figure 4 As shown in , the actuator includes four position sensors 8 , which are electrically connected to four circuit boards 7 in a one-to-one correspondence.
[0062] When the actuator includes multiple position sensors 8, at least one position sensor 8 is used to output an electrical signal to determine the amount of rotation of the mover 1 in the axial direction of the first rotating shaft 31, and at least one position sensor 8 is used to output an electrical signal to determine the amount of rotation of the mover 1 in the axial direction of the second rotating shaft 32. This allows the position information of the mover 1 to be obtained at any position, which facilitates control and precise anti-shake. Optionally, the position sensor 8 may include a Hall sensor, which can be used to sense the magnetic field strength generated by a magnet and thereby output an electrical signal used to determine the position information of the mover 1.
[0063] Based on the technical solution disclosed herein, a camera module is also provided, comprising an actuator, a lens assembly, and an imaging assembly as described above. The actuator 1 includes a mounting cavity, within which the lens assembly is fixedly disposed. The light incident direction of the lens assembly, the axial direction of the first rotating shaft 31, and the axial direction of the second rotating shaft 32 are orthogonal to each other. The light incident surface of the imaging assembly is disposed toward the light exiting surface of the lens assembly, and the imaging assembly is fixedly disposed relative to the stator 2. Thus, when the actuator 1 rotates relative to the stator 2, it drives the lens assembly to rotate relative to the imaging assembly, thereby achieving the anti-shake function of the camera module.
[0064] Based on the technical solution of the present disclosure, an electronic device is also provided. The electronic device may include a light collection hole and a camera module as described in any of the above embodiments. The light incident surface of the lens group of the camera module is arranged toward the light collection hole, so that the light can be deflected by the lens group and then emitted to the imaging component located at the rear end of the lens to achieve imaging.
[0065] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.
[0066] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims
1. An actuator, characterized in that: include: A mover, the mover comprising a first guide groove; a stator, the stator comprising a second guide slot; A cross shaft, the cross shaft comprising a first shaft and a second shaft fixedly connected, the first shaft and the second shaft being arranged orthogonally, the first shaft passing through the first guide slot and rotatably engaged with the first guide slot, the second shaft passing through the second guide slot and rotatably engaged with the second guide slot; a driving member, the driving member being used to drive the mover to rotate relative to the stator around a first rotation axis, or to drive the mover and the cross-rotation shaft to rotate relative to the stator around a second rotation axis at any time; Wherein, the first guide groove includes a first arc-shaped inner wall, and the first arc-shaped inner wall is arranged tangent to the first rotating shaft; and / or the second guide groove includes a second arc-shaped inner wall, and the second arc-shaped inner wall is arranged tangent to the second rotating shaft.
2. The actuator according to claim 1, characterized in that The first guide groove includes two first arc-shaped inner walls symmetrically arranged, and the two first arc-shaped inner walls are respectively arranged tangentially to the first rotating shaft.
3. The actuator according to claim 1, wherein: The second guide groove includes two symmetrically arranged second arc-shaped inner walls, and the two second arc-shaped inner walls are respectively tangentially arranged to the second rotation axis.
4. The actuator according to claim 1, wherein: The recessed directions of the first guide groove and the second guide groove are parallel and opposite.
5. The actuator according to claim 1, wherein: The stator includes an open end and a first avoidance cavity connected to the open end. The mover is at least partially arranged in the first avoidance cavity. The stator includes a second avoidance cavity. The second rotating shaft passes through the second avoidance cavity. The second avoidance cavity is used to avoid the second rotating shaft when the mover rotates around the first rotating shaft.
6. The actuator according to claim 5, characterized in that The mover further includes at least one convex portion extending toward the interior of the second avoidance cavity, and the convex portion contacts and limits the second rotating shaft.
7. The actuator according to claim 1, wherein: The driving member includes: a first electromagnetic assembly, the first electromagnetic assembly comprising a first coil and a first magnet disposed opposite to each other, the axial direction of the first coil being parallel to the axial direction of the first rotating shaft, one of the first coil and the first magnet being fixed relative to the stator, and the other being fixed relative to the mover; a second electromagnetic assembly, the second electromagnetic assembly comprising a second coil and a second magnet arranged opposite to each other, the axial direction of the second coil being arranged parallel to the axial direction of the second rotating shaft, one of the second coil and the second magnet being fixed relative to the stator, and the other being fixed relative to the mover, the polarity arrangement directions of the first magnet and the second magnet being parallel, and the axial direction of the first rotating shaft, the axial direction of the second rotating shaft, and the polarity arrangement directions being arranged perpendicularly to each other; The first coil and the first magnet interact to drive the mover to rotate around a first rotation axis relative to the stator, and the second coil and the second magnet interact to drive the mover to rotate around a second rotation axis relative to the stator.
8. The actuator according to claim 7, characterized in that The actuator includes an even number of first electromagnetic components, and the even number of first electromagnetic components are separated into an axially symmetrical distribution about the second rotation axis.
9. The actuator according to claim 7, characterized in that The actuator includes an even number of second electromagnetic components, and the even number of second electromagnetic components are separated into an axially symmetrical distribution with respect to the first rotation axis.
10. The actuator according to claim 7, wherein: The invention also includes a third electromagnetic assembly, the third electromagnetic assembly including a third coil and a third magnet arranged opposite to each other, the axial direction of the third coil being perpendicular to the axial directions of the first rotating shaft and the second rotating shaft, one of the third coil and the third magnet being fixed relative to the stator, and the other being fixed relative to the mover; The third coil interacts with the third magnet to drive the mover to rotate axially relative to the stator around the first rotation axis, or drives the mover to rotate axially relative to the stator around the second rotation axis.
11. The actuator according to claim 10, characterized in that The mover is at least partially disposed in the stator, and the first magnet, the second magnet, and the third magnet are all fixedly disposed on a surface of the mover facing the inner wall of the stator; The stator includes a plurality of through slots, and the actuator further includes a plurality of circuit boards, each of the circuit boards is connected to the stator, and the plurality of circuit boards cover the plurality of through slots in a one-to-one correspondence; The first coil, the second coil and the third coil are respectively electrically connected to any one of the circuit boards and are at least partially located in the corresponding through slots.
12. The actuator according to claim 11, wherein: It also includes at least one position sensor, each of which is electrically connected to any one of the circuit boards, and is used to output an electrical signal for determining the position information of the mover.
13. The actuator according to claim 12, characterized in that There are multiple position sensors, at least one of which is used to output an electrical signal for determining the rotation amount of the mover around the first rotation axis, and at least one position sensor is used to output an electrical signal for determining the rotation amount of the mover around the second rotation axis.
14. A camera module, characterized in that: include: The actuator according to any one of claims 1 to 13, wherein the mover comprises a mounting cavity; a lens assembly, wherein the lens assembly is fixedly disposed in the mounting cavity, and a light incident direction of the lens assembly, an axial direction of the first rotating shaft, and an axial direction of the second rotating shaft are orthogonal to each other; An imaging component, wherein the light incident surface of the imaging component is arranged toward the light emitting surface of the lens group, and the imaging component and the stator are fixedly arranged relative to each other.
15. An electronic device, characterized in that: Comprising the camera module as described in claim 14.