Reflection module and camera module

Abstract

The invention relates to a reflection module and a camera module. The invention firstly provides a reflection module. The reflection module comprises a fixed base with an internal space; the rotating assembly is movably arranged in the internal space; the reflecting component is arranged on the rotating assembly and is used for reflecting light rays incident along the first axis to the second axis; the driving device comprises a rotating coil, a pitching coil and a driving magnet, the rotating coil and the pitching coil are arranged on the fixed base, and the driving magnet is arranged on the rotating assembly; the rotating coil and the driving magnet are oppositely arranged in the direction parallel to the second shaft so as to drive the rotating assembly to rotate around the first rotating shaft. The pitching coil and the driving magnet are oppositely arranged in the direction parallel to the first shaft so as to drive the rotating assembly to rotate around the second rotating shaft. The rotating coil and the pitching coil of the reflection module share one driving magnet, the number of magnets needed by the driving device can be effectively reduced, miniaturization of the camera module is facilitated, and the risk of magnetic interference is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of optical imaging, and particularly to a reflection module and a camera module. Background Art

[0002] The camera module is an essential part of mobile electronic devices. With the further development of camera module technology, users' requirements for camera modules have become increasingly refined. The development of camera products not only needs to meet many high-performance requirements such as background blur, night shooting, and dual-camera zoom, but also needs to meet the requirements of miniaturization, portability, and compactness. In particular, some periscope camera modules have a longer focal length by folding the optical path, so as to meet the requirements of zoom and thinness at the same time, and have broad market prospects.

[0003] Currently, the reflection module of the periscope camera module usually rotates around the direction parallel to the incident optical axis and rotates around the rotation axis perpendicular to the incident optical axis and parallel to the imaging plane. When the camera module is accidentally shaken (for example, due to the user's hand shaking), the image formed on the image sensor may be unstable in the direction perpendicular to the optical axis, easily causing the loss of imaging plane information, and a part of the light participating in imaging will also be blocked at the aperture, resulting in a reduction in the performance of the periscope camera module and affecting the final imaging quality.

[0004] Currently, some periscope camera modules correct the optical image by driving the reflection module. In order to reduce the influence of jitter in the images produced by the periscope camera module, usually, the rotational swing or pitching swing of the reflection module (that is, the reflection module can perform rotational motion and / or pitching motion) is used to compensate for the rotational jitter and tilting jitter generated during the use of the camera module, so as to reduce aberration and improve the imaging quality. However, the rotational directions of the rotational swing and pitching swing of the reflection module are different, and two sets of driving modules are required to drive, which makes the volume of the camera module relatively large and is not conducive to the miniaturization of the camera. In addition, since the driving module contains a large number of magnets, there is a risk of magnetic interference, which is not conducive to the operation of the camera module. Summary of the Invention

[0005] Based on this, in view of the problem that the number of magnets in the driving module for compensating jitter of the current camera module is relatively large, it is necessary to provide a reflection module and a camera module that can effectively reduce the number of magnets.

[0006] The present application first provides a reflection module, including:

[0007] A fixed base, the fixed base having an internal space;

[0008] A rotating assembly, the rotating assembly being movably disposed in the internal space;

[0009] A reflecting member, which is disposed on the rotating assembly and is used to reflect the light incident along the first axis to the second axis, wherein the first axis is perpendicular to the second axis; and

[0010] A driving device, which includes a rotating coil, a pitching coil and a driving magnet. The rotating coil and the pitching coil share the driving magnet. The rotating coil and the pitching coil are disposed on the fixed base, and the driving magnet is disposed on the rotating assembly. The rotating coil and the driving magnet are oppositely disposed along a direction parallel to the second axis to drive the rotating assembly to rotate around the first rotating axis. The pitching coil and the driving magnet are oppositely disposed along a direction parallel to the first axis to drive the rotating assembly to rotate around the second rotating axis. Wherein, the first rotating axis is parallel to the second axis, the second rotating axis is parallel to the third axis, and the third axis is perpendicular to the first axis and the second axis.

[0011] In one embodiment, the projection of the center of the pitching coil and / or the center of the driving magnet along the first axis direction deviates from the projection of the second rotating axis along the first axis direction.

[0012] In one embodiment, the projections of the center of the pitching coil and the center of the driving magnet along the first axis direction do not overlap in the second axis direction, so that the pitching coil is biased in the magnetic field of the driving magnet.

[0013] In one embodiment, the connection line between the center of the pitching coil and the center of the driving magnet is perpendicular to the second rotating axis.

[0014] In one embodiment, the centers of the rotating coil and the driving magnet are aligned in a direction parallel to the second axis.

[0015] In one embodiment, the driving device includes a pair of the driving magnets, a pair of rotating coils and a pair of pitching coils. The driving magnets include a first magnet and a second magnet that are oppositely disposed along the third axis on the rotating assembly. The rotating coils include a first rotating sub-coil and a second rotating sub-coil that are respectively disposed on the fixed base, and the first rotating sub-coil and the second rotating sub-coil are respectively oppositely disposed along the second axis direction with the first magnet and the second magnet to drive the rotating assembly to rotate around the first rotating axis. The pitching coils include a first pitching sub-coil and a second pitching sub-coil that are respectively disposed on the fixed base, and the first pitching sub-coil and the second pitching sub-coil are respectively oppositely disposed along the first axis direction with the first magnet and the second magnet to drive the rotating assembly to rotate around the second rotating axis.

[0016] In one embodiment, the setting directions of the two magnetic poles of the first magnet are the same as those of the two magnetic poles of the second magnet, and the current directions in the first rotating sub-coil and the second rotating sub-coil are opposite; when the projections of the centers of the first pitching sub-coil and the second pitching sub-coil along the first axis are respectively on the same side of the projection of the connection line between the centers of the first magnet and the second magnet along the first axis, the current direction in the first pitching sub-coil is the same as the current direction in the second rotating sub-coil.

[0017] In one embodiment, the setting directions of the two magnetic poles of the first magnet are opposite to those of the two magnetic poles of the second magnet, and the current directions in the first rotating sub-coil and the second rotating sub-coil are the same; when the projections of the centers of the first pitching sub-coil and the second pitching sub-coil along the first axis are respectively on the same side of the projection of the connection line between the centers of the first magnet and the second magnet along the first axis, the current direction in the first pitching sub-coil is opposite to the current direction in the second rotating sub-coil.

[0018] In one embodiment, the projections of the centers of the first pitching sub-coil and the second pitching sub-coil along the first axis are respectively on the same side of the projection of the connection line between the centers of the first magnet and the second magnet along the first axis.

[0019] In one embodiment, the projections of the centers of the first pitching sub-coil and the second pitching sub-coil along the first axis are respectively on different sides of the projection of the connection line between the centers of the first magnet and the second magnet along the first axis.

[0020] In one embodiment, the rotating assembly includes a support assembly and a movable carrier. The rotating assembly includes a support assembly and a movable carrier. The support assembly includes an intermediate frame, a pitching support member, and a rotating support member. The pitching support member is disposed between the intermediate frame and the movable carrier to rotatably mount the movable carrier on the intermediate frame about the second rotation axis. The rotating support member is disposed between the intermediate frame and the fixed base to rotatably mount the intermediate frame on the fixed base about the first rotation axis.

[0021] In one embodiment, the pitching support member includes at least two pitching bosses, the pitching bosses protruding from one of the intermediate frame and the movable carrier along the first axis direction, the pitching bosses being arranged in a direction parallel to the second rotation axis, at least two pitching grooves being formed in the other of the intermediate frame and the movable carrier, the pitching grooves being arranged in a direction parallel to the second rotation axis, the pitching bosses being movably clamped in the pitching grooves by the intermediate frame and the movable carrier; the rotation support member includes at least two rotation bosses, the rotation bosses protruding from one of the intermediate frame and the fixed base along the first axis direction, the rotation bosses being arranged in a direction parallel to the first rotation axis, at least two rotation grooves being formed in the other of the intermediate frame and the fixed base, the rotation grooves being arranged in a direction parallel to the first rotation axis, the rotation bosses being movably clamped in the rotation grooves by the intermediate frame and the fixed base.

[0022] In one embodiment, the pitching support member includes at least two pitching balls, the intermediate frame being provided with pitching ball lower grooves arranged in a direction parallel to the second rotation axis, the movable carrier being provided with at least two pitching ball upper grooves arranged in a direction parallel to the second rotation axis, the pitching balls being movably clamped between the pitching ball lower grooves and the pitching ball upper grooves by the intermediate frame and the movable carrier; the rotation support member includes at least two rotation balls, the fixed base being provided with rotation ball lower grooves arranged in a direction parallel to the first rotation axis, the intermediate frame being provided with at least two rotation ball upper grooves arranged in a direction parallel to the first rotation axis, the rotation balls being movably clamped between the rotation ball lower grooves and the rotation ball upper grooves by the fixed base and the intermediate frame.

[0023] In one embodiment, the pitching support member includes a pitching rotating shaft extending along the second rotation axis direction, the intermediate frame and / or the movable carrier being respectively rotatably connected to the pitching rotating shaft; the rotation support member includes a rotation rotating shaft extending along the first rotation axis direction, the fixed base and / or the intermediate frame being respectively rotatably connected to the rotation rotating shaft. In one embodiment, the reflection module further includes a magnetic attraction assembly, the magnetic attraction assembly including a first magnetic attraction member and a second magnetic attraction member, the first magnetic attraction member being arranged on the movable carrier, the second magnetic attraction member being arranged on the fixed base, the first magnetic attraction member being arranged between the first magnet and the second magnet, the second magnetic attraction member being arranged between the first pitching sub-coil and the second pitching sub-coil.

[0024] The present application further provides an imaging module, including:

[0025] A base body having a receiving cavity;

[0026] The reflection module as described in any one of the above, the reflection module is disposed in the receiving cavity, and the fixed base of the reflection module is integrally or separately disposed on the base body;

[0027] A lens module disposed in the receiving cavity and held on the light reflection path of the reflection module;

[0028] An imaging module disposed in the receiving cavity and held on the light emitting side of the lens module to receive the light emitted by the lens module for imaging; and

[0029] A housing covering the base body.

[0030] In summary, the rotating coil and the pitching coil of the reflection module of the present application are disposed in the magnetic field of a shared driving magnet. When a current is passed through the rotating coil, a force can be generated to drive the rotating assembly to drive the reflecting member to rotate and swing around the first rotation axis; when a current is passed through the pitching coil, a force can be generated to drive the rotating assembly to drive the reflecting member to pitch and swing around the second rotation axis. One driving magnet can cooperate with the rotating coil and the pitching coil at the same time to generate a force, so that the rotating coil and the pitching coil share the driving magnet, which can effectively reduce the number of magnets required for the driving device, thereby reducing the size of the driving device and being beneficial to the miniaturization of the imaging module. Secondly, due to the reduction of the number of magnets, the risk of magnetic interference can also be reduced. And, by sharing the driving magnet for the rotating coil and the pitching coil, the structure of the driving device can be simplified, thereby saving the cost of the imaging module. Description of the Drawings

[0031] Figure 1 A three-dimensional schematic diagram of the imaging module after opening the housing provided by an embodiment of the present application;

[0032] Figure 2 An exploded schematic diagram of the reflection module provided by an embodiment of the present application;

[0033] Figure 3 A three-dimensional schematic diagram showing an example of the driving magnet of the reflection module according to the above embodiment of the present application;

[0034] Figure 4 A three-dimensional schematic diagram showing another example of the driving magnet of the reflection module according to the above embodiment of the present application;

[0035] Figure 5Shows a schematic projection diagram of the reflection module according to the above embodiments of the present application along the second axis direction;

[0036] Figure 6 Shows a three-dimensional schematic diagram of the bottom view of the reflection module according to the above embodiments of the present application;

[0037] Figure 7 Shows a schematic projection diagram of the reflection module according to the above embodiments of the present application along the third axis direction;

[0038] Figure 8 Shows a schematic projection diagram of an example of the pitching coil of the reflection module according to the above embodiments of the present application along the first axis direction;

[0039] Figure 9 Shows a schematic projection diagram of another example of the pitching coil of the reflection module according to the above embodiments of the present application along the first axis direction;

[0040] Figure 10 Shows a three-dimensional schematic diagram of the rotation coil and the pitching coil of the reflection module according to the above embodiments of the present application when installed on a fixed base;

[0041] Figure 11 Shows a three-dimensional schematic diagram of the support assembly of the reflection module according to the above embodiments of the present application;

[0042] Figure 12 Shows a schematic cross-sectional diagram of the first example of the support assembly of the reflection module according to the above embodiments of the present application along the first rotation axis;

[0043] Figure 13 Shows a schematic cross-sectional diagram of the first example of the support assembly of the reflection module according to the above embodiments of the present application along the second rotation axis;

[0044] Figure 14 Shows a schematic cross-sectional diagram of the second example of the support assembly of the reflection module according to the above embodiments of the present application along the first rotation axis;

[0045] Figure 15 Shows a schematic cross-sectional diagram of the second example of the support assembly of the reflection module according to the above embodiments of the present application along the second rotation axis;

[0046] Figure 16 Shows a schematic cross-sectional diagram of the third example of the support assembly of the reflection module according to the above embodiments of the present application along the first rotation axis;

[0047] Figure 17 Shows a schematic cross-sectional diagram of the third example of the support assembly of the reflection module according to the above embodiments of the present application along the second rotation axis;

[0048] Figure 18 Shows a schematic projection diagram along the second axis direction of an example of the magnet assembly of the reflection module according to the above embodiments of the present application;

[0049] Figure 19 Shows a schematic projection diagram along the second axis direction of another example of the magnet assembly of the reflection module according to the above embodiments of the present application;

[0050] Figure 20 Shows a schematic cross-sectional view of the camera module according to the above embodiments of the present application.

[0051] Reference numerals: 100, reflection module; 10, fixed base; 11, bottom wall; 12, back side wall; 20, rotating assembly; 21, supporting assembly; 211, intermediate frame; 212, pitching support; 2121, pitching boss; 2122, pitching groove; 2123, pitching ball; 2124, pitching ball lower groove; 2125, pitching ball upper groove; 2126, pitching rotating shaft; 213, rotating support; 2131, rotating boss; 2132, rotating groove; 2133, rotating ball; 2134, rotating ball lower groove; 2135, rotating ball upper groove; 2136, rotating rotating shaft; 22, movable carrier; 30, reflecting member; 40, driving device; 41, rotating coil; 411, first rotating sub-coil; 4111, upper rotating coil segment; 4112, lower rotating coil segment; 412, second rotating sub-coil; 42, pitching coil; 421, first pitching sub-coil; 422, second pitching sub-coil; 43, driving magnet; 431, first magnet; 432, second magnet; 50, magnetic attraction assembly; 51, first magnetic attraction member; 52, second magnetic attraction member; 200, lens module; 300, imaging module; 310, photosensitive assembly; 311, photosensitive circuit board; 312, photosensitive chip; 320, filter assembly; 321, filter support; 322, filter element; 400, base body; 500, housing; OA1, first axis; OA2, second axis; OA3, third axis; C1, first rotating axis; C2, second rotating axis. Detailed Description of the Invention

[0052] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0053] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0054] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0055] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0057] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0058] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 6 As shown, the present application first provides a reflection module 100, including a fixed base 10, a rotating assembly 20, a reflection member 30 and a driving device 40. The fixed base 10 has an internal space. The rotating assembly 20 is movably disposed in the internal space. The reflection member 30 is disposed on the rotating assembly 20 and is used to reflect the light incident along the first axis OA1 to the second axis OA2. Among them, the first axis OA1 is perpendicular to the second axis OA2. The driving device 40 includes a rotating coil 41, a pitching coil 42 and a driving magnet 43. The rotating coil 41 and the pitching coil 42 are disposed on the fixed base 10, and the driving magnet 43 is disposed on the rotating assembly 20. The rotating coil 41 and the driving magnet 43 are oppositely disposed along a direction parallel to the second axis OA2 to drive the rotating assembly 20 to rotate around the first rotation axis C1. The pitching coil 42 and the driving magnet 43 are oppositely disposed along a direction parallel to the first axis OA1 to drive the rotating assembly 20 to rotate around the second rotation axis C2. Among them, the first rotation axis C1 is parallel to the second axis OA2, the second rotation axis C2 is parallel to the third axis OA3, and the third axis OA3 is perpendicular to the first axis OA1 and the second axis OA2.

[0059] It can be understood that in the present application, the rotating coil 41 and the pitching coil 42 are disposed in the magnetic field of the shared driving magnet 43. When a current is passed through the rotating coil 41, a force can be generated to drive the rotating assembly 20 to drive the reflection member 30 to rotate and swing around the first rotation axis C1. When a current is passed through the pitching coil 42, a force can be generated to drive the rotating assembly 20 to drive the reflection member 30 to pitch and swing around the second rotation axis C2. In this way, the driving magnet 43 is a shared magnet, and the shared driving magnet 43 can cooperate with the rotating coil 41 and the pitching coil 42 to generate forces at the same time, that is, the rotating coil 41 and the pitching coil 42 share the driving magnet 43, which can effectively reduce the number of magnets required for the driving device 40, thereby reducing the size of the driving device 40 and being beneficial to the miniaturization of the camera module. Secondly, due to the reduction of the number of magnets, the risk of magnetic interference can also be reduced. And, by sharing the driving magnet 43 for the rotating coil 41 and the pitching coil 42, the structure of the driving device 40 can be simplified, thereby saving the cost of the camera module.

[0060] Specifically, as Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, in some embodiments, the drive magnet 43 includes two magnetic poles, and the two magnetic poles are stacked in a direction parallel to the first axis OA1. The rotating coil 41 includes an upper rotating coil segment 4111 and a lower rotating coil segment 4112. The upper rotating coil segment 4111 and the lower rotating coil segment 4112 are arranged one above the other in a direction parallel to the first axis OA1. The upper rotating coil segment 4111 and the lower rotating coil segment 4112 extend in a direction parallel to the third axis OA3. A projection of the upper rotating coil segment 4111 and the drive magnet 43 on the upper side magnetic pole in the second axis OA2 direction partially overlaps, and a projection of the lower rotating coil segment 4112 and the drive magnet 43 on the lower side magnetic pole in the second axis OA2 direction partially overlaps.

[0061] In this way, the upper rotating coil segment 4111 and the lower rotating coil segment 4112 of the rotating coil 41 are respectively in magnetic fields with opposite directions. When a current is passed through the rotating coil 41, the current directions in the upper rotating coil segment 4111 and the lower rotating coil segment 4112 are opposite. Therefore, according to the left-hand rule, when the upper rotating coil segment 4111 and the lower rotating coil segment 4112 interact with the drive magnet 43, forces with the same direction will be generated, thereby forming a force F. Under the action of the force F, the rotating assembly 20 is driven to rotate around the first rotation axis C1.

[0062] Optionally, in some embodiments, the centers of the rotating coil 41 and the drive magnet 43 may be aligned in the second axis OA2 direction, so that the magnetic field force of the drive magnet 43 acting on the rotating coil 41 is evenly distributed to provide a more stable force. In some other embodiments, the centers of the rotating coil 41 and the drive magnet 43 may not be aligned in the second axis OA2 direction to reduce the assembly difficulty. It should be understood that both embodiments can achieve the function of driving the rotating assembly 20 to rotate around the first rotation axis C1.

[0063] Preferably, as Figure 5As shown, in some embodiments, the center of the rotating coil 41 is aligned with the center of the driving magnet 43 in a direction parallel to the second axis OA2. In this way, the upper rotating coil segment 4111 and the lower rotating coil segment 4112 of the rotating coil 41 are symmetrically arranged along the boundary surface between the two magnetic poles of the driving magnet 43, so that the upper rotating coil segment 4111 and the lower rotating coil segment 4112 are in a magnetic field with the same magnetic induction intensity. When a current is passed through the rotating coil 41, the acting forces generated by the interaction between the upper rotating coil segment 4111, the lower rotating coil segment 4112 and the driving magnet 43 are of the same magnitude, so that the acting forces in other directions generated by the upper rotating coil segment 4111 except those parallel to the first axis OA1 cancel each other out with the acting forces in other directions generated by the lower rotating coil segment 4112 except those parallel to the first axis OA1, thereby maximizing the acting force F generated by the interaction between the rotating coil 41 and the driving magnet 43.

[0064] Optionally, as Figure 6 shown, in some embodiments, the projection of the center of the pitching coil 42 along the first axis OA1 and / or the projection of the center of the driving magnet 43 along the first axis OA1 do not overlap with the projection of the second rotating axis C2 along the first axis OA1. In other words, the center of the pitching coil 42 and / or the center of the driving magnet 43 deviate from the second rotating axis C2 in the second axis OA2 direction. That is to say, at least one of the center of the pitching coil 42 and the center of the driving magnet 43 deviates from the second rotating axis C2 in the second axis OA2 direction. When a current is passed through the pitching coil 42, the acting point of the acting force F generated by the interaction between the pitching coil 42 and the driving magnet 43 deviates from the second rotating axis C2 in the second axis OA2 direction, so that the acting force F generated by energizing the pitching coil 42 can drive the rotating assembly 20 to rotate around the second rotating axis C2.

[0065] Exemplarily, in some embodiments, the projection of the center of the pitch coil 42 along the direction of the first axis OA1 overlaps with the projection of the second rotation axis C2 in the direction of the first axis OA1, and the projection of the center of the drive magnet 43 along the direction of the first axis OA1 does not overlap with the projection of the second rotation axis C2 in the direction of the first axis OA1. In other embodiments, the projection of the center of the pitch coil 42 along the direction of the first axis OA1 does not overlap with the projection of the second rotation axis C2 in the direction of the first axis OA1, and the projection of the center of the drive magnet 43 along the direction of the first axis OA1 overlaps with the projection of the second rotation axis C2 in the direction of the first axis OA1. In other embodiments, the projections of the center of the pitch coil 42 and the center of the drive magnet 43 along the direction of the first axis OA1 do not overlap with the projection of the second rotation axis C2 in the direction of the first axis OA1, and the linear distances from the center of the pitch coil 42 and the center of the drive magnet 43 to the second rotation axis C2 can be the same or different. In the above embodiments, the action point of the acting force F generated by the interaction between the pitch coil 42 and the drive magnet 43 deviates from the second rotation axis C2 in the direction of the second axis OA2, so as to drive the rotation assembly 20 to rotate around the second rotation axis C2.

[0066] As Figure 7 shown, in some embodiments, the projections of the centers of the pitch coil 42 and the drive magnet 43 along the direction of the first axis OA1 do not overlap in the direction of the second axis, so that the pitch coil 42 is offset within the magnetic field of the drive magnet 43. When a current is passed through the pitch coil 42, the action point of the generated acting force F does not coincide with the second rotation axis C2, thereby being able to drive the second rotation assembly 20 to rotate around the second rotation axis C2.

[0067] More preferably, in some embodiments, the connection line between the center of the pitch coil 42 and the center of the drive magnet 43 is perpendicular to the second rotation axis C2. In other words, the left pitch coil segment and the right pitch coil segment of the pitch coil 42 respectively correspond to the left half and the right half of the drive magnet 43, so that the left pitch coil segment and the right pitch coil segment of the pitch coil 42 are in a magnetic field with the same magnetic induction intensity. When a current is passed through the pitch coil 42, the acting forces generated by the interaction between the left pitch coil segment and the right pitch coil segment and the drive magnet 43 are of the same magnitude, maximizing the acting force generated by the rotating coil 41.

[0068] Further, as Figure 2 、 Figure 3 、 Figure 4 and Figure 6As shown, in some embodiments, the driving device 40 includes a pair of driving magnets 43, a pair of rotating coils 41, and a pair of pitching coils 42. The driving magnets 43 include a first magnet 431 and a second magnet 432. The first magnet 431 and the second magnet 432 are respectively arranged oppositely along the third axis OA3 on the rotating assembly 20. The rotating coils 41 include a first rotating sub-coil 411 and a second rotating sub-coil 412. The first rotating sub-coil 411 and the second rotating sub-coil 412 are respectively arranged on the fixed base 10, and the first rotating sub-coil 411 and the second rotating sub-coil 412 are respectively arranged oppositely to the first magnet 431 and the second magnet 432 along the second axis OA2 to drive the rotating assembly 20 to rotate around the first rotation axis C1. The pitching coils 42 include a first pitching sub-coil 421 and a second pitching sub-coil 422. The first pitching sub-coil 421 and the second pitching sub-coil 422 are respectively arranged on the fixed base 10, and the first pitching sub-coil 421 and the second pitching sub-coil 422 are respectively arranged oppositely to the first magnet 431 and the second magnet 432 along the first axis OA1 to drive the rotating assembly 20 to rotate around the second rotation axis C2.

[0069] In this way, the two sets of driving magnets 43 and the two sets of rotating coils 41 interact to drive the rotating assembly 20 to rotate around the first rotation axis C1, and the two sets of driving magnets 43 and the two sets of pitching coils 42 interact to drive the rotating assembly 20 to rotate around the second rotation axis C2, which can generate a stronger acting force, making the rotation and pitching swing speeds of the rotating assembly 20 faster, thereby enhancing the response speed of the anti-shake adjustment and improving the imaging quality of the camera module.

[0070] Since the first magnet 431 and the second magnet 432 are symmetrically arranged with respect to the second axis OA2, therefore, to make the rotating assembly 20 rotate around the first rotation axis C1, it is necessary to make the directions of the acting forces received by the first magnet 431 and the second magnet 432 opposite.

[0071] Optionally, as Figure 3 shown, in some embodiments, the setting directions of the two magnetic poles of the first magnet 431 are the same as those of the two magnetic poles of the second magnet 432. In this way, the magnetic field directions of the first magnet 431 and the second magnet 432 are the same. By controlling the current directions in the first rotating sub-coil 411 and the second rotating sub-coil 412 to be opposite, it is possible to control the directions of the acting forces received by the first magnet 431 and the second magnet 432 to be opposite. Since the first magnet 431 and the second magnet 432 are arranged on the rotating assembly 20, the opposite acting forces can drive the first magnet 431, the second magnet 432, and the rotating assembly 20 to rotate around the first rotation axis C1.

[0072] Exemplarily, along the direction of the first axis OA1, the N pole of the first magnet 431 is on the upper side and the S pole is on the lower side, the N pole of the second magnet 432 is on the upper side and the S pole is on the lower side. A positive current is passed through the first rotating sub-coil 411, and a reverse current is passed through the second rotating sub-coil 412. According to the left-hand rule, the force F acting on the first magnet 431 is upward, and the force F acting on the second magnet 432 is downward, thereby enabling the rotation assembly 20 to rotate.

[0073] Optionally, as Figure 4 shown, in some embodiments, the setting directions of the two magnetic poles of the first magnet 431 are opposite to those of the two magnetic poles of the second magnet 432. In this way, the magnetic field direction of the first magnet 431 is opposite to that of the second magnet 432. By controlling the current directions in the first rotating sub-coil 411 and the second rotating sub-coil 412 to be the same, the directions of the forces acting on the first magnet 431 and the second magnet 432 can be controlled to be opposite, thereby causing the rotation assembly 20 to rotate around the first rotation axis C1.

[0074] Exemplarily, along the direction of the first axis OA1, the N pole of the first magnet 431 is on the upper side and the S pole is on the lower side, the S pole of the second magnet 432 is on the upper side and the N pole is on the lower side. A positive current is passed through the first rotating sub-coil 411 and the second rotating sub-coil 412. According to the left-hand rule, the force F acting on the first magnet 431 is upward, and the force F acting on the second magnet 432 is downward, thereby enabling the rotation assembly 20 to rotate.

[0075] Particularly, the directions of the forces acting on the first magnet 431 and the second magnet 432 can also be the same, but it is necessary to control one of the forces to be greater than the other. That is, while keeping the first magnet 431 and the second magnet 432 having the same magnetic field strength, the magnitudes of the currents input to the first rotating sub-coil 411 and the second rotating sub-coil 412 are controlled to be different, so that the first rotating sub-coil 411 and the second rotating sub-coil 412 generate different magnitudes of forces, and the two forces cancel each other out to form a resultant force in one direction to drive the rotation assembly 20 to rotate around the first rotation axis C1.

[0076] Optionally, as Figure 6 and Figure 8As shown, in some embodiments, the projections of the centers of the first pitching sub-coils 421 and the second pitching sub-coils 422 along the direction of the first axis OA1 are respectively located on the same side of the projection of the line connecting the centers of the first magnet 431 and the second magnet 432 along the direction of the first axis OA1. For example, on the side close to the reflection member 30 or on the side away from the reflection member 30. In this way, if the magnetic field directions of the first magnet 431 and the second magnet 432 are the same, by controlling the current directions in the first pitching sub-coils 421 and the second rotating sub-coils 412 to be the same, two acting forces with the same direction can be generated. The acting points of the two acting forces are both on the same side of the second rotating axis C2, and the acting points of the two acting forces do not coincide with the second rotating axis C2. In this way, the two acting forces can jointly drive the rotating assembly 20 to rotate around the second rotating axis C2. If the magnetic field directions of the first magnet 431 and the second magnet 432 are opposite, by controlling the current directions in the first pitching sub-coils 421 and the second rotating sub-coils 412 to be opposite, two acting forces with the same direction can be generated. The acting points of the two acting forces are both on the same side of the second rotating axis C2, and the acting points of the two acting forces do not coincide with the second rotating axis C2. Furthermore, the two acting forces can jointly drive the rotating assembly 20 to rotate around the second rotating axis C2.

[0077] Exemplarily, along the direction of the first axis OA1, the N pole of the first magnet 431 is on the top and the S pole is on the bottom, and the N pole of the second magnet 432 is on the top and the S pole is on the bottom. A reverse current is passed through the first pitching sub-coils 421, and a reverse current is passed through the second pitching sub-coils 422. According to the left-hand rule, the acting force F on the first magnet 431 is upward, and the acting force F on the second magnet 432 is upward. The acting points of the two acting forces F are both on the same side of the second rotating axis C2, and the acting points of the two acting forces do not coincide with the second rotating axis C2, so as to be able to drive the rotating assembly 20 to rotate around the second rotating axis C2.

[0078] Optionally, as Figure 9As shown, in some embodiments, the projections of the centers of the first pitching sub-coil 421 and the second pitching sub-coil 422 along the direction of the first axis OA1 are located on different sides of the projection of the line connecting the centers of the first magnet 431 and the second magnet 432 along the direction of the first axis OA1. Thus, if the magnetic field directions of the first magnet 431 and the second magnet 432 are the same, by controlling the current directions in the first pitching sub-coil 421 and the second rotating sub-coil 412 to be opposite, two opposite acting forces can be generated, and the acting points of the two acting forces are located on different sides of the second rotating axis C2 and do not coincide with the second rotating axis C2, so as to drive the rotating assembly 20 to rotate around the second rotating axis C2; if the magnetic field directions of the first magnet 431 and the second magnet 432 are opposite, by controlling the current directions in the first pitching sub-coil 421 and the second rotating sub-coil 412 to be the same, two opposite acting forces can be generated, the acting points are located on different sides of the second rotating axis C2, and the acting points of the two acting forces do not coincide with the second rotating axis C2. Furthermore, the two acting forces acting together can drive the rotating assembly 20 to rotate around the second rotating axis C2.

[0079] Exemplarily, along the direction of the first axis OA1, the N pole of the first magnet 431 is on the top and the S pole is on the bottom, the S pole of the second magnet 432 is on the top and the N pole is on the bottom. A reverse current is passed through the first pitching sub-coil 421, and a forward current is passed through the second pitching sub-coil 422. According to the left-hand rule, the acting force F on the first magnet 431 is upward, and the acting force F on the second magnet 432 is downward. The acting points of the two acting forces F are located on both sides of the second rotating axis C2 and do not coincide with the second rotating axis C2, so that the rotating assembly 20 can be driven to rotate.

[0080] In some embodiments, the first rotating sub-coil 411 and the second rotating sub-coil 412 are connected in series. In this way, when current is applied to the rotating coil 41, the magnitudes of the currents applied to the first rotating sub-coil 411 and the second rotating sub-coil 412 can be kept the same. If the first rotating sub-coil 411 and the second rotating sub-coil 412 are in a magnetic field with the same magnetic induction intensity at this time, it can ensure that the magnitudes of the acting forces F generated by the first rotating sub-coil 411 and the second rotating sub-coil 412 are the same, enabling the rotating assembly 20 to rotate and swing more stably around the first rotation axis C1. Similarly, the first pitching sub-coil 421 and the second pitching sub-coil 422 are connected in series. In this way, when current is applied to the pitching coil 42, the magnitudes of the currents applied to the first pitching sub-coil 421 and the second pitching sub-coil 422 can be kept the same. If the first pitching sub-coil 421 and the second pitching sub-coil 422 are in a magnetic field with the same magnetic induction intensity at this time, it can ensure that the magnitudes of the acting forces F generated by the first pitching sub-coil 421 and the second pitching sub-coil 422 are the same, enabling the rotating assembly 20 to pitch and swing more stably around the second rotation axis C2.

[0081] As Figure 10 shown, in some embodiments, the fixed base 10 includes a bottom wall 11 perpendicular to the first axis OA1 and a back wall 12 perpendicular to the second axis OA2. The pitching coil 42 is disposed on the bottom wall 11, and the rotating coil 41 is disposed on the back wall 12. In this way, the rotating coil 41 is located at the back of the driving magnet 43, and the pitching coil 42 is located at the bottom of the driving magnet 43, enabling the rotating coil 41 and the pitching coil 42 to share the magnetic field of a single driving magnet 43. Further, the movable carrier 22 includes a bearing portion close to the reflecting member 30 and a mounting portion away from the reflecting member 30. Among them, the bearing portion has a mounting plane for mounting the reflecting member 30, and the mounting portion has a magnet mounting groove with an opening facing the first axis OA1 and the second axis OA2. The driving magnet 43 is disposed in the magnet mounting groove such that the driving magnet 43 can be disposed opposite to the pitching coil 42 along the first axis OA1 and opposite to the rotating coil 41 along the second axis OA2.

[0082] As Figure 2 and Figure 11 shown, in some embodiments, the rotating assembly 20 includes a support assembly 21 and a movable carrier 22. The support assembly 21 includes an intermediate frame 211, a pitching support 212, and a rotating support 213. The pitching support 212 is disposed between the intermediate frame 211 and the movable carrier 22 to rotatably mount the movable carrier 22 on the intermediate frame 211 about the second rotation axis C2. The rotating support 213 is disposed between the intermediate frame 211 and the fixed base 10 to rotatably mount the intermediate frame 211 on the fixed base 10 about the first rotation axis C1.

[0083] It can be understood that the pitching support member 212 and the rotating support member 213 can limit the degrees of freedom of the movable carrier 22 and the intermediate frame 211, and they can be specifically implemented in the form of protrusions, balls, rotating shafts, etc.

[0084] Optionally, as Figure 12 and Figure 13 shown, in some embodiments, the pitching support member 212 may include at least two pitching bosses 2121. The pitching bosses 2121 protrude from one of the intermediate frame 211 and the movable carrier 22 along the first axis OA1 direction. The pitching bosses 2121 are arranged along a direction parallel to the second rotation axis C2. At least two pitching grooves 2122 are formed in the other of the intermediate frame 211 and the movable carrier 22. The pitching grooves 2122 are arranged along a direction parallel to the second rotation axis C2. The pitching bosses 2121 are movably pressed by the intermediate frame 211 and the movable carrier 22 into the pitching grooves 2122. In this way, the pitching bosses 2121 are restricted within the pitching grooves 2122. Also, because both the pitching bosses 2121 and the pitching grooves 2122 are arranged along the second rotation axis C2 direction, the movable carrier 22 can only rotate relative to the intermediate frame 211 about the second rotation axis C2. Similarly, the rotating support member 213 includes at least two rotating bosses 2131. The rotating bosses 2131 protrude from one of the intermediate frame 211 and the fixed base 10 along the first axis OA1 direction. The rotating bosses 2131 are arranged along a direction parallel to the first rotation axis C1. At least two rotating grooves 2132 are formed in the other of the intermediate frame 211 and the fixed base 10. The rotating grooves 2132 are arranged along a direction parallel to the first rotation axis C1. The rotating bosses 2131 are movably pressed by the intermediate frame 211 and the fixed base 10 into the rotating grooves 2132. In this way, the rotating bosses 2131 are restricted within the rotating grooves 2132. Also, because both the rotating bosses 2131 and the rotating grooves 2132 are arranged along the first rotation axis C1 direction, the intermediate frame 211 can only rotate relative to the fixed base 10 about the first rotation axis C1.

[0085] Optionally, as Figure 14 and Figure 15As shown, in some embodiments, the pitch support member 212 includes at least two pitch balls 2123. The intermediate frame 211 is provided with pitch ball lower grooves 2124 which are arranged along a direction parallel to the second rotation axis C2. The movable carrier 22 is provided with at least two pitch ball upper grooves 2125 which are arranged along a direction parallel to the second rotation axis C2. The pitch balls 2123 are movably clamped between the intermediate frame 211 and the movable carrier 22 in the pitch ball lower grooves 2124 and the pitch ball upper grooves 2125. In this way, the pitch balls 2123 are restricted between the pitch ball upper grooves 2125 and the pitch ball lower grooves 2124. Also, since the pitch balls 2123, the pitch ball upper grooves 2125 and the pitch ball lower grooves 2124 are all arranged along the direction of the second rotation axis C2, the movable carrier 22 can only rotate relative to the intermediate frame 211 about the second rotation axis C2. Similarly, the rotation support member 213 includes at least two rotation balls 2133. The fixed base 10 is provided with rotation ball lower grooves 2134 which are arranged along a direction parallel to the first rotation axis C1. The intermediate frame 211 is provided with at least two rotation ball upper grooves 2135 which are arranged along a direction parallel to the first rotation axis C1. The rotation balls 2133 are movably clamped between the fixed base 10 and the intermediate frame 211 in the rotation ball lower grooves 2134 and the rotation ball upper grooves 2135. In this way, the rotation balls 2133 are restricted between the rotation ball upper grooves 2135 and the rotation ball lower grooves 2134. Also, since the rotation balls 2133, the rotation ball upper grooves 2135 and the rotation ball lower grooves 2134 are all arranged along the direction of the first rotation axis C1, the intermediate frame 211 can only rotate relative to the fixed base 10 about the first rotation axis C1.

[0086] Optionally, as Figure 16 and Figure 17 shown, in some embodiments, the pitch support member 212 includes a pitch rotation shaft 2126 which extends along the second rotation axis C2. The intermediate frame 211 and / or the movable carrier 22 are respectively rotatably connected to the pitch rotation shaft 2126. In this way, through the pitch rotation shaft 2126, the movable carrier 22 can only rotate relative to the intermediate frame 211 about the second rotation axis C2. The rotation support member 213 includes a rotation rotation shaft 2136 which extends along the first rotation axis C1. The fixed base 10 and / or the intermediate frame 211 are respectively rotatably connected to the rotation rotation shaft 2136. In this way, through the rotation rotation shaft 2136, the intermediate frame 211 can only rotate relative to the fixed base 10 about the first rotation axis C1, so as to improve the rotation accuracy of the intermediate frame 211 and the movable carrier 22 about the first rotation axis C1 and the second rotation axis C2.

[0087] In some embodiments, the reflection module 100 further includes a magnetic attraction component 50. The magnetic attraction component 50 includes a first magnetic attraction member 51 and a second magnetic attraction member 52. The first magnetic attraction member 51 is disposed on the movable carrier 22, and the second magnetic attraction member 52 is disposed on the fixed base 10. The first magnetic attraction member 51 and the second magnetic attraction member 52 attract each other to generate a magnetic attraction force, which can clamp the support component 21 between the movable carrier 22 and the fixed base 10.

[0088] Optionally, in some embodiments, both the first magnetic attraction member 51 and the second magnetic attraction member 52 are magnets, or one of the first magnetic attraction member 51 and the second magnetic attraction member 52 is a magnet and the other is a magnetic yoke. In this way, when both the first magnetic attraction member 51 and the second magnetic attraction member 52 are magnets, the generated magnetic attraction force is stronger, and the support component 21 can be clamped more firmly. When one of the first magnetic attraction member 51 and the second magnetic attraction member 52 is a magnet and the other is a magnetic yoke, the number of magnets can be reduced, thereby reducing the magnetic attraction interference on the pitch coil 42.

[0089] Optionally, as Figure 18 shown, in some embodiments, the first magnetic attraction member 51 is disposed between the first magnet 431 and the second magnet 432, and the second magnetic attraction member 52 is disposed between the first pitch sub-coil 421 and the second pitch sub-coil 422. In this way, the acting positions of the magnetic attraction force generated by the first magnetic attraction member 51 and the second magnetic attraction member 52 are different from the acting position of the acting force generated by the pitch coil 42. When the pitch coil 42 is energized for driving, the acting force generated by the pitch coil 42 does not need to be too large to resist the action of the magnetic attraction force, and the power consumption of the pitch coil 42 can be reduced.

[0090] Optionally, as Figure 19 shown, in some embodiments, the reflection module 100 includes a pair of second magnetic attraction members 52, and the two second magnetic attraction members 52 are respectively disposed below the first pitch sub-coil 421 and the second pitch sub-coil 422. In this way, by setting the two second magnetic attraction members 52 to attract the first magnet 431 and the second magnet 432 respectively to generate a magnetic attraction force, the clamping of the support component 21 is more stable. However, when driving the rotating component 20 to perform pitch swing, it is necessary to make the pitch coil 42 generate a greater acting force to counteract the magnetic attraction force, and the power consumption of the pitch coil 42 is higher.

[0091] Please refer to Figure 1 and Figure 20As shown in the figure, the present application also provides an imaging module, including: a base body 400, a reflection module 100 as described in any of the above, a lens module 200, an imaging module 300, and a housing 500. Among them, the base body 400 has a receiving cavity, and the reflection module 100, the lens module 200, and the imaging module 300 are all disposed in the receiving cavity. The fixed base 10 of the reflection module 100 can be integrally or separately disposed on the base body 400. The lens module 200 is held on the light reflection path of the reflection module 100, and the imaging module 300 is held on the light-emitting side of the lens module 200 for receiving the light emitted by the lens module 200 to perform imaging. The housing 500 is covered on the base body 400.

[0092] Specifically, the reflection module 100 can rotate and swing along the first rotation axis C1 and pitch and swing along the second rotation axis C2 to achieve the optical image stabilization function. The imaging module 300 includes a photosensitive component 310 and a filter component 320. Among them, the photosensitive component 310 includes a photosensitive circuit board 311 and a photosensitive chip 312 and electronic components mounted on the photosensitive circuit board 311. The photosensitive chip 312 can be fixed to the photosensitive circuit board 311 by means such as bonding or pasting and can be electrically connected to the photosensitive circuit board 311 by means such as wire bonding. Thus, after the photosensitive chip 312 receives light for imaging, it is electrically connected to the mobile electronic device through the photosensitive circuit board 311. The filter component 320 includes a filter bracket 321 and a filter element 322 mounted on the filter bracket 321. The filter bracket 321 is fixed to the photosensitive circuit board 311 by means such as bonding, and the filter element 322 can be fixed to the filter bracket 321 by means such as bonding, so as to be held on the photosensitive path of the photosensitive chip 312. The filter element 322 can filter the light entering the photosensitive chip 312.

[0093] The technical features of the above embodiments can be combined arbitrarily. For the sake of brief description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0094] The above embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent should be subject to the appended claims.

Claims

1. A reflection module, characterized in that, Comprising: A fixed base having an internal space; A rotating assembly movably disposed within the internal space; A reflecting member disposed on the rotating assembly for reflecting light incident along a first axis to a second axis, wherein the first axis is perpendicular to the second axis; and A driving device including a rotating coil, a pitching coil and a driving magnet. The rotating coil and the pitching coil share the driving magnet. The rotating coil and the pitching coil are disposed on the fixed base, and the driving magnet is disposed on the rotating assembly. The rotating coil and the driving magnet are disposed opposite to each other in a direction parallel to the second axis to drive the rotating assembly to rotate about a first rotation axis. The pitching coil and the driving magnet are disposed opposite to each other in a direction parallel to the first axis to drive the rotating assembly to rotate about a second rotation axis. Wherein, the first rotation axis is parallel to the second axis, the second rotation axis is parallel to a third axis, and the third axis is perpendicular to the first axis and the second axis.

2. The reflection module according to claim 1, wherein The projection of the center of the pitching coil and / or the center of the driving magnet along the first axis direction deviates from the projection of the second rotation axis along the first axis direction.

3. The reflection module according to claim 2, characterized in that, The projections of the center of the pitching coil and the center of the driving magnet along the first axis direction do not overlap in the second axis direction, so that the pitching coil is biased in the magnetic field of the driving magnet.

4. The reflection module according to claim 2, characterized in that, The line connecting the center of the pitching coil and the center of the driving magnet is perpendicular to the second rotation axis.

5. The reflection module according to claim 2, characterized in that, The centers of the rotating coil and the driving magnet are aligned in a direction parallel to the second axis.

6. The reflection module according to any one of claims 2 to 5, characterized in that The driving device includes a pair of the driving magnets, a pair of rotating coils and a pair of pitching coils. The driving magnets include a first magnet and a second magnet respectively disposed on the rotating assembly opposite to each other along the third axis. The rotating coils include a first rotating sub-coil and a second rotating sub-coil respectively disposed on the fixed base, and the first rotating sub-coil and the second rotating sub-coil are respectively disposed opposite to the first magnet and the second magnet along the second axis direction to drive the rotating assembly to rotate about a first rotation axis. The pitching coils include a first pitching sub-coil and a second pitching sub-coil respectively disposed on the fixed base, and the first pitching sub-coil and the second pitching sub-coil are respectively disposed opposite to the first magnet and the second magnet along the first axis direction to drive the rotating assembly to rotate about a second rotation axis.

7. The reflection module according to claim 6, characterized in that, The setting directions of the two magnetic poles of the first magnet are the same as those of the two magnetic poles of the second magnet, and the current directions in the first rotating sub-coil and the second rotating sub-coil are opposite. When the projections of the centers of the first pitching sub-coil and the second pitching sub-coil along the first axis direction are respectively located on the same side of the projection of the line connecting the centers of the first magnet and the second magnet along the first axis direction, the current direction in the first pitching sub-coil is the same as the current direction in the second rotating sub-coil.

8. The reflection module according to claim 6, wherein The setting directions of the two magnetic poles of the first magnet are opposite to the setting directions of the two magnetic poles of the second magnet, and the current directions in the first rotor coil and the second rotor coil are the same; when the projections of the centers of the first pitching coil and the second pitching coil along the first axis are respectively located on the same side of the projection of the connection line between the centers of the first magnet and the second magnet along the first axis, the current direction in the first pitching coil is opposite to the current direction in the second rotor coil.

9. The reflection module according to claim 6, characterized in that, The projections of the centers of the first pitching coil and the second pitching coil along the first axis are respectively located on the same side of the projection of the connection line between the centers of the first magnet and the second magnet along the first axis.

10. The reflection module according to claim 6, wherein The projections of the centers of the first pitching coil and the second pitching coil along the first axis are respectively located on different sides of the projection of the connection line between the centers of the first magnet and the second magnet along the first axis.

11. The reflection module according to claim 6, wherein The rotating assembly includes a support assembly and a movable carrier. The support assembly includes an intermediate frame, a pitching support member, and a rotating support member. The pitching support member is disposed between the intermediate frame and the movable carrier to rotatably mount the movable carrier on the intermediate frame about the second rotation axis. The rotating support member is disposed between the intermediate frame and the fixed base to rotatably mount the intermediate frame on the fixed base about the first rotation axis.

12. The reflection module according to claim 11, wherein The pitching support member includes at least two pitching bosses protruding along the first axis from one of the intermediate frame and the movable carrier. The pitching bosses are arranged along a direction parallel to the second rotation axis. The other of the intermediate frame and the movable carrier is provided with at least two pitching grooves arranged along a direction parallel to the second rotation axis. The pitching bosses are movably pressed by the intermediate frame and the movable carrier into the pitching grooves. The rotating support member includes at least two rotating bosses protruding along the first axis from one of the intermediate frame and the fixed base. The rotating bosses are arranged along a direction parallel to the first rotation axis. The other of the intermediate frame and the fixed base is provided with at least two rotating grooves arranged along a direction parallel to the first rotation axis. The rotating bosses are movably pressed by the intermediate frame and the fixed base into the rotating grooves.

13. The reflection module according to claim 11, wherein The pitching support member includes at least two pitching balls. The intermediate frame is provided with pitching ball lower grooves which are arranged in a direction parallel to the second rotation axis. The movable carrier is provided with at least two pitching ball upper grooves which are arranged in a direction parallel to the second rotation axis. The pitching balls are movably clamped between the intermediate frame and the movable carrier in the pitching ball lower grooves and the pitching ball upper grooves. The rotation support member includes at least two rotation balls. The fixed base is provided with rotation ball lower grooves which are arranged in a direction parallel to the first rotation axis. The intermediate frame is provided with at least two rotation ball upper grooves which are arranged in a direction parallel to the first rotation axis. The rotation balls are movably clamped between the fixed base and the intermediate frame in the rotation ball lower grooves and the rotation ball upper grooves.

14. The reflection module according to claim 11, wherein The pitching support member includes a pitching rotation shaft which extends along the direction of the second rotation axis. The intermediate frame and / or the movable carrier are respectively rotatably connected to the pitching rotation shaft. The rotation support member includes a rotation rotation shaft which extends along the direction of the first rotation axis. The fixed base and / or the intermediate frame are respectively rotatably connected to the rotation rotation shaft.

15. The reflection module according to claim 11, wherein The reflection module further includes a magnetic attraction assembly. The magnetic attraction assembly includes a first magnetic attraction member and a second magnetic attraction member. The first magnetic attraction member is disposed on the movable carrier. The second magnetic attraction member is disposed on the fixed base. The first magnetic attraction member is disposed between the first magnet and the second magnet. The second magnetic attraction member is disposed between the first pitching sub-coil and the second pitching sub-coil.

16. An imaging module, characterized in that, Comprising: A base body which has an accommodation cavity; The reflection module according to any one of claims 1 to 15, wherein the reflection module is disposed in the accommodation cavity, and the fixed base of the reflection module is integrally or separately disposed on the base body; A lens module which is disposed in the accommodation cavity and is held on the light reflection path of the reflection module; An imaging module which is disposed in the accommodation cavity and is held on the light-emitting side of the lens module to receive the light emitted by the lens module for imaging; and A housing which covers the base body.

Images