Reflection module and camera module

Abstract

The application relates to a reflection module and a camera module. The reflection module comprises a base with an internal space; a carrier for carrying a reflection element, the carrier being rotatably arranged on the base; a first driving assembly comprising a first driving magnet and a first driving coil, used for driving the carrier to rotate relative to the base; and a first sensing assembly comprising a first sensing magnet and a first position sensor, used for acquiring position change information of the carrier relative to the base; wherein the first sensing magnet and the first driving magnet are adjacently arranged along a first direction and form a joint area therebetween, the first position sensor is opposite to the joint area along a second direction, and the second direction is perpendicular to the first direction; the minimum distance between the first sensing magnet and the first position sensor along the second direction is smaller than the minimum distance between the first driving magnet and the first position sensor along the second direction; so that the magnetic field distribution uniformity acquired by the first position sensor is improved, and the angle detection precision is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optical imaging, in particular to a reflection module and a camera module. BACKGROUND

[0002] With the development of mobile electronic device camera modules, the long-focus shooting function has increasingly high requirements for optical image stabilization (OIS) precision. An optical image stabilization system compensates for device jitter by driving a reflection element to deflect, wherein the angle detection precision of a position sensor directly affects the anti-shake performance.

[0003] In a conventional reflection module, a position sensor is usually provided with a separate sensing magnet to improve the angle detection precision of the position sensor, but the separate sensing magnet needs to occupy additional space, which is not conducive to the miniaturization of the reflection module.

[0004] To this end, the present application arranges a driving magnet and a sensing magnet side by side, so that the position sensor corresponds to the driving magnet and the sensing magnet at the same time, to reduce the space occupation of the sensing magnet.

[0005] However, since the size of the driving magnet is significantly larger than that of the sensing magnet, the magnetic field strength of the driving magnet is stronger than that of the sensing magnet, thereby causing the magnetic field acquired by the position sensor to be asymmetrically distributed, the angle detection precision of the carrier rotating around the shaft to be reduced, and the optical image stabilization precision to be reduced, which cannot meet the requirement of suppressing slight device jitter in a long-focus long-distance shooting mode. SUMMARY

[0006] Therefore, it is necessary to provide a reflection module and a camera module capable of effectively improving the angle detection precision of a position sensor, in view of the low angle detection precision of the position sensor in the conventional reflection module.

[0007] The present application first provides a reflection module, comprising:

[0008] a base having an internal space;

[0009] a carrier for carrying a reflection element, the carrier being rotatably arranged in the base;

[0010] a first driving assembly comprising a first driving magnet and a first driving coil, one of which is arranged in the base and the other is arranged opposite to the carrier, for driving the carrier to rotate relative to the base;

[0011] a first sensing assembly comprising a first sensing magnet and a first position sensor, the first sensing magnet being arranged in one of the base and the carrier in which the first driving magnet is arranged, and the first position sensor being arranged opposite to the other, for acquiring position change information of the carrier relative to the base;

[0012] The first sensing magnet and the first driving magnet are adjacently arranged along a first direction and form a joint area therebetween, the first position sensor is opposite to the joint area along a second direction, and the second direction is perpendicular to the first direction; a minimum distance between the first sensing magnet and the first position sensor along the second direction is less than a minimum distance between the first driving magnet and the first position sensor along the second direction.

[0013] In one of the embodiments, the mounting position of the first sensing magnet is located on a side close to the first position sensor along the second direction compared to the mounting position of the first driving magnet, and / or the length of the first sensing magnet along the second direction is greater than the first driving magnet.

[0014] In one of the embodiments, the two magnetic poles of the first sensing magnet and the first driving magnet adjacently arranged along the first direction are different.

[0015] In one of the embodiments, the distance between the first sensing magnet and the first driving magnet along the first direction is less than 0.3 mm.

[0016] In one of the embodiments, the first sensing magnet and the first driving magnet are in close contact with each other along the first direction.

[0017] In one of the embodiments, a separation sheet is arranged between the first sensing magnet and the first driving magnet along the first direction.

[0018] In one of the embodiments, the projection of the first position sensor along the second direction is opposite to the middle position of the joint area along the first direction, or is located on a side deviated from the first sensing magnet along the first direction with the middle position as the center.

[0019] In one of the embodiments, the projection of the first position sensor along the second direction is opposite to the middle position of the joint area along a third direction, and the third direction is perpendicular to the first direction and the second direction.

[0020] In one of the embodiments, the first sensing magnet is adjacently arranged on both sides of the first driving magnet along the first direction, and two joint areas are correspondingly formed, and each of the joint areas is correspondingly provided with the first position sensor along the second direction.

[0021] In one of the embodiments, the magnetic poles of the first driving magnet are sequentially arranged along the first direction.

[0022] In one of the embodiments, the first driving magnet has a first magnetic pole adjacent to the first sensing magnet in the first direction, and the length of the first magnetic pole in the first direction is greater than that of other magnetic poles of the first driving magnet.

[0023] In one of the embodiments, the first direction is parallel to the first axis, and the reflective element is configured to reflect light rays incident along a second axis to the first axis.

[0024] In one of the embodiments, the first sensing magnet is located on the side of the first driving magnet away from the reflective element in the first direction.

[0025] In one of the embodiments, the reflective module further comprises a frame rotatably arranged in the base around a third axis, and the carrier is rotatably arranged in the frame around the third axis, and the projection of the first sensing magnet along the second axis overlaps the first axis and is symmetrical with respect to the first axis; wherein the second direction is parallel to the second axis, and the third axis is perpendicular to the first axis and the second axis.

[0026] The present application also provides a camera module comprising the above reflective module.

[0027] A reflective element is mounted in the reflective module.

[0028] A lens module is arranged in the base and held on the light reflection path of the reflective element.

[0029] An imaging module is arranged on the light exit side of the base and receives the light emitted by the lens module for imaging.

[0030] An upper cover is arranged on the base.

[0031] The above reflective module can enhance the magnetic field contribution ratio of the first sensing magnet in the combination area, weaken the interference of the first driving magnet, improve the uniformity of the magnetic field distribution obtained by the first position sensor, and thus improve the angle detection accuracy and the optical anti-shake accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is an exploded view of the camera module of the present application.

[0033] Figure 2A It is a sectional view of one of the embodiments of the reflective module of the present application.

[0034] Figure 2B for another embodiment of the reflective module of the present application Figure 2A cutaway view of the position;

[0035] Figure 2C for another embodiment of the reflective module of the present application Figure 2A cutaway view of the position;

[0036] Figure 3 for Figure 1 perspective view of the reflective module from an angle of elevation;

[0037] Figure 4 for Figure 3 perspective view from another angle;

[0038] Figure 5 for Figure 4 exploded view;

[0039] Figure 6 for Figure 5 perspective view of the frame from another angle;

[0040] Figure 7 for Figure 2A enlarged view of the first position sensor.

[0041] Reference Signs:

[0042] 10, base; 20, carrier; 21, accommodating cavity; 22, main body portion; 221, loading surface; 23, side portion; 231, recess; 24, front pivot slot; 25, extension portion; 26, partition piece; 30, first drive assembly; 31, first drive magnet; 311, first magnetic pole; 32, first drive coil; 40, first sensing assembly; 41, first sensing magnet; 42, first position sensor; 50, frame; 51, plate body; 511, pivot slot; 512, auxiliary front slot; 513, avoidance hole; 52, support portion; 53, rear pivot slot; 60, reflective element; 70, second drive assembly; 71, second drive magnet; 72, second drive coil; 80, second sensing assembly; 81, second sensing magnet; 82, second position sensor; 91, first support portion; 911, rotation support member; 912, auxiliary ball; 92, second support portion; 921, pivot ball; 93, first magnetic attraction member; 94, second magnetic attraction member; 100, reflective module; 200, lens module; 300, imaging module; 400, upper cover; C1, first axis; C2, second axis; C3, third axis. DETAILED DESCRIPTION

[0043] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the specific embodiments of the present application will be described below in detail with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in many different manners without the specific details, and it is to be understood that the present application is not limited to the specific embodiments described below and that the specific embodiments are given for the purposes of exemplification only.

[0044] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0045] In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0046] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0048] It is to be understood that where an element such as a layer, region or substrate is described as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where an element such as a layer, region or substrate is described as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "including", and "having", are inclusive and therefore specify certain embodiments, but do not preclude other embodiments.

[0049] Please refer to FIGS. 1 to 8, Figure 1 , Figure 2A , Figure 3 and Figure 7 , the present application provides a first reflective module 100, comprising: a base 10 having an internal space; a carrier 20 for carrying a reflective element 60, the carrier 20 being rotatably disposed in the base 10; a first driving assembly 30 comprising a first driving magnet 31 and a first driving coil 32, one of which is disposed in the base 10 and the other is disposed opposite to the carrier 20, for driving the carrier 20 to rotate relative to the base 10; a first sensing assembly 40 comprising a first sensing magnet 41 and a first position sensor 42, the first sensing magnet 41 being disposed in one of the base 10 and the carrier 20 where the first driving magnet 31 is disposed, and the first position sensor 42 being disposed opposite to the other, for obtaining position change information (e.g. rotation angle) of the carrier 20 relative to the base 10; wherein the first sensing magnet 41 and the first driving magnet 31 are adjacently disposed along a first direction and form a joint area therebetween, and the first position sensor 42 is opposite to the joint area along a second direction, the second direction being perpendicular to the first direction; the minimum distance d1 between the first sensing magnet 41 and the first position sensor 42 along the second direction is less than the minimum distance d2 between the first driving magnet 31 and the first position sensor 42 along the second direction. In other words, along the second direction, the first sensing magnet 41 is closer to the first position sensor 42 than the first driving magnet 31.

[0050] In the present application, by disposing the first position sensor 42 opposite to the joint area along the second direction, and by limiting the minimum distance d1 between the first sensing magnet 41 and the first position sensor 42 along the second direction to be less than the minimum distance d2 between the first driving magnet 31 and the first position sensor 42 along the second direction, the proportion of the magnetic field contribution of the first sensing magnet 41 to the first position sensor 42 can be enhanced, the uniformity of the magnetic field distribution obtained by the first position sensor 42 can be improved, and thus the angle detection accuracy of the first position sensor 42 can be improved, and the optical anti-shake accuracy can be improved.

[0051] Specifically, the joint area is a joint surface or a gap space between the first sensing magnet 41 and the first driving magnet 31 along the first direction; the first position sensor 42 is opposite to the joint area along the second direction, that is, the projection of the first position sensor 42 along the second direction at least partially or completely covers the joint area, so that the first position sensor 42 can obtain the magnetic field information generated by the first sensing magnet 41 and the first driving magnet 31 together, and obtain the angle change information of the first sensing magnet 41 and the first driving magnet 31 by obtaining the change of the magnetic field information, and further obtain the angle change information of the carrier 20.

[0052] Further, the first sensing magnet 41 and the first driving magnet 31 are arranged on the carrier 20, and the first position sensor 42 and the first driving coil 32 are arranged on the base 10, so as to facilitate energization of the first position sensor 42 and the first driving coil 32; after the first driving coil 32 is energized, the magnetic field generated by the first driving coil 32 drives the first driving magnet 31 to rotate, thereby driving the carrier 20 to rotate relative to the base 10.

[0053] Further, the first sensing magnet 41 and the first driving magnet 31 are arranged on the bottom surface of the carrier 20, and the first position sensor 42 and the first driving coil 32 are arranged on the inner bottom wall of the base 10.

[0054] In other embodiments, the first sensing magnet 41 and the first driving magnet 31 are arranged on the back surface of the carrier 20 (i.e., the side of the carrier 20 away from the reflective element 60 along the first direction), and the first position sensor 42 and the first driving coil 32 are arranged on the inner side wall of the base 10.

[0055] It can be understood that, in an embodiment of the present application, the first position sensor 42 and the first driving coil 32 are arranged apart along the first direction, so as to reduce the interference of the magnetic field generated by the first driving coil 32 to the first position sensor 42 after the first driving coil 32 is energized. Specifically, the distance between the first position sensor 42 and the first driving coil 32 along the first direction is greater than one-half of the size of the first position sensor 42 along the first direction.

[0056] In some embodiments, the surface of the first sensing magnet 41 and the surface of the first driving magnet 31 close to the first position sensor 42 along the second direction are both planes, and the two planes are parallel to each other and perpendicular to the second direction, at this time, d1 is the distance between the first sensing magnet 41 and the first position sensor 42 in the direction perpendicular to the surface of the first sensing magnet 41, and d2 is the distance between the first driving magnet 31 and the first position sensor 42 in the direction perpendicular to the surface of the first driving magnet 31.

[0057] Please refer to Figure 2A and Figure 3As shown, in some embodiments, the mounting position of the first sensing magnet 41 is located on the side closer to the first position sensor 42 along the second direction than the mounting position of the first driving magnet 31, and / or the length of the first sensing magnet 41 along the second direction is greater than that of the first driving magnet 31.

[0058] In the above embodiments, the mounting position of the first sensing magnet 41 along the second direction is set to be closer to the first position sensor 42, which can directly reduce the distance d1 between the first sensing magnet 41 and the first position sensor 42, significantly amplify the magnetic field signal strength at the first position sensor 42, and effectively suppress the magnetic field asymmetry. In addition, increasing the length of the first sensing magnet 41 along the second direction can not only directly reduce the distance d1 between the first sensing magnet 41 and the first position sensor 42, but also extend the magnetic field coverage area of the first sensing magnet 41, so that the magnetic field coverage range of the first sensing magnet 41 expands towards the first position sensor 42, thereby enhancing the strength of the magnetic field at the first position sensor 42.

[0059] In addition, by adjusting the mounting position of the first sensing magnet 41 along the second direction and / or the length of the first sensing magnet 41, the proportion of the magnetic field contribution of the first sensing magnet 41 in the combination area can also be changed, which can also have the effects of improving the space utilization and ensuring the normal operation of the first driving assembly 30. On the one hand, in order to ensure the normal operation of the angle detection function of the first sensing assembly 40, there must be a certain gap between the first sensing magnet 41 and the first position sensor 42 along the second direction. By adjusting the position and / or size of the first sensing magnet 41 along the second direction, the gap can be utilized without occupying other space, thereby improving the space utilization and achieving the effect of space optimization while improving the magnetic field contribution of the first sensing magnet 41 in the combination area, and meeting the demand for miniaturization. On the other hand, although the proportion of the magnetic field contribution in the combination area can also be changed by adjusting the position and / or size of the first driving magnet 31, the adjustment of the position and / or size of the first driving magnet 31 may affect the driving effect of the first driving assembly 30. Therefore, by preferentially adjusting the position and / or size of the first sensing magnet 41, the driving between the first driving coil 32 and the first driving magnet 31 can be ensured to be unaffected.

[0060] In some embodiments, the volume of the first sensing magnet 41 can also be increased to increase the magnetic field strength of the first sensing magnet 41, thereby increasing the proportion of the magnetic field contribution of the first sensing magnet 41 in the combination area, such as increasing the size of the first sensing magnet 41 along the first direction or the third direction.

[0061] In some embodiments, the two adjacent magnetic poles of the first sensing magnet 41 and the first driving magnet 31 along the first direction are different, so as to form a coupling magnetic field region (combination region). That is, on the side facing the first position sensor 42, the first driving magnet 31 has a first magnetic pole 311 adjacent to the first sensing magnet 41 along the first direction, which is different from a second magnetic pole (not shown in the figure) of the first sensing magnet 41 adjacent to the first driving magnet 31 along the first direction. For example, the first magnetic pole 311 is N pole, and the second magnetic pole is S pole.

[0062] In some embodiments, the distance between the first sensing magnet 41 and the first driving magnet 31 along the first direction is less than 0.3 mm. By limiting the width of the gap between the first sensing magnet 41 and the first driving magnet 31 to be less than 0.3 mm, a high gradient magnetic field can be formed at the gap, so that the first position sensor 42 can obtain a curve that is easy to calibrate.

[0063] It should be noted that, since the two adjacent magnetic poles of the first sensing magnet 41 and the first driving magnet 31 are different, the first sensing magnet 41 and the first driving magnet 31 have a tendency to approach each other under the magnetic attraction between them, which causes the gap between them along the first direction to deviate from the preset value, and further causes the gap sizes of different reflection modules to be different in the batch production process, resulting in different sensing results and poor consistency.

[0064] For this purpose, please refer to Figure 2A In some embodiments, the first sensing magnet 41 and the first driving magnet 31 are in close contact along the first direction. By eliminating the gap through close contact, the first sensing magnet 41 and the first driving magnet 31 are ensured to be in direct contact along the first direction. Therefore, the consistency of this part of structure in different reflection modules is significantly improved, and the sensing result of the first position sensor 42 is more reliable, which is convenient for quality control in batch production.

[0065] In addition, the design of close contact also eliminates the physical space required by the additional gap, reduces the overall structure size, and is beneficial to the miniaturization of the reflection module.

[0066] Please refer to Figure 2B In some embodiments, a separation piece 26 is arranged between the first sensing magnet 41 and the first driving magnet 31 along the first direction. By providing physical limiting through the separation piece 26, the distance between the first sensing magnet 41 and the first driving magnet 31 is forcibly limited, so as to ensure the consistency of the gap of different reflection modules, avoid the inconsistency of the sensing result caused by the fluctuation of the gap size, and improve the consistency of the reflection module.

[0067] In some embodiments, the partition sheet 26 can be made of a magnetic conductive material or a non-magnetic conductive material; if made of a magnetic conductive material such as metal, the magnetic field coupling can be enhanced; if made of a non-magnetic conductive material such as plastic, the magnetic field interference can be reduced, avoiding the adverse effects of the material of the partition sheet 26 on the position sensing, thereby improving the angle measurement accuracy.

[0068] In some embodiments, the first sensing magnet 41 and the first driving magnet 31 are arranged on the carrier 20, and the partition sheet 26 can be fixed with one or more of the first sensing magnet 41, the first driving magnet 31, and the carrier 20; similarly, if the first sensing magnet 41 and the first driving magnet 31 are arranged on the base 10, the partition sheet 26 can be fixed with one or more of the first sensing magnet 41, the first driving magnet 31, and the base 10.

[0069] Further, when the partition sheet 26 is fixed with one of the carrier 20 or the base 10, the partition sheet 26 is integrally formed with the fixed carrier 20 or base 10; further, the material of the partition sheet 26 is consistent with that of the integrally formed carrier 20 or base 10.

[0070] In other embodiments, the partition sheet 26 is clamped and fixed between the first sensing magnet 41 and the first driving magnet 31.

[0071] Please refer to Figure 2A In some embodiments, the projection of the first position sensor 42 along the second direction is opposite to the middle position of the joint area along the first direction, or is located on the side deviated from the first sensing magnet 41 along the first direction with the middle position as the center.

[0072] In one example, since the first sensing magnet 41 is closer to the first position sensor 42 than the first driving magnet 31, the magnetic field contributions of the first sensing magnet 41 and the first driving magnet 31 are close, and the middle position of the joint area along the first direction is the magnetic field superposition area of the first driving magnet 31 and the first sensing magnet 41, where the magnetic field gradient is the largest and the distribution is the most uniform. By aligning the first position sensor 42 along the second direction to this position, the magnetic field signal strength detected by the first position sensor 42 can be improved, thereby improving the measurement accuracy of the rotation angle.

[0073] In another example, the magnetic field contribution of the adjusted first sensing magnet 41 is still smaller than that of the first driving magnet 31, and therefore, allowing the projection of the first position sensor 42 to deviate to the side of the first sensing magnet 41 can enhance the influence of the magnetic field of the first sensing magnet 41 on the first position sensor 42, thereby improving the uniformity of the magnetic field distribution acquired by the first position sensor 42.

[0074] Please refer to Figure 3As shown, in some embodiments, the projection of the first position sensor 42 along the second direction is opposite to the middle position of the coupling region along the third direction, and the third direction is perpendicular to the first direction and the second direction.

[0075] As can be understood, the coupling magnetic field of the first sensing magnet 41 and the first driving magnet 31 at the coupling region is symmetrical along the third direction. By arranging the first position sensor 42 at the middle position of the coupling region along the third direction, the projection of the first position sensor 42 can be opposite to the middle line of the coupling region along the third direction, thereby reducing the offset error caused by the asymmetry of the magnetic field along the third direction.

[0076] As shown, in some embodiments, the first driving magnet 31 is arranged adjacent to the first sensing magnet 41 along the first direction, and the first driving magnet 31 and the first sensing magnet 41 form a coupling region. Figure 2C As shown, in some embodiments, the first driving magnet 31 is arranged adjacent to the first sensing magnet 41 along the first direction, and the first driving magnet 31 and the first sensing magnet 41 form a coupling region.

[0077] By arranging two sets of first sensing assemblies 40 on both sides of the first driving assembly 30, a redundant detection system is formed. When the carrier 20 rotates, the magnetic field changes of the two coupling regions can be measured independently. By comparing the detection data of the two sets of first sensing assemblies 40, accidental errors of single-point detection can be eliminated, the anti-interference ability to external magnetic fields can be improved, and the angle detection reliability can be improved.

[0078] As shown, in some embodiments, the first driving magnet 31 is arranged adjacent to the first sensing magnet 41 along the first direction, and the first driving magnet 31 and the first sensing magnet 41 form a coupling region. Figure 2A As shown, in some embodiments, the first driving magnet 31 is arranged adjacent to the first sensing magnet 41 along the first direction, and the first driving magnet 31 and the first sensing magnet 41 form a coupling region.

[0079] As shown, in some embodiments, the first driving magnet 31 is arranged adjacent to the first sensing magnet 41 along the first direction, and the first driving magnet 31 and the first sensing magnet 41 form a coupling region. Figure 2A As shown, in some embodiments, the first driving magnet 31 is arranged adjacent to the first sensing magnet 41 along the first direction, and the first driving magnet 31 and the first sensing magnet 41 form a coupling region.

[0080] The first magnetic pole 311, as a magnetic pole adjacent to the first sensing magnet 41, needs not only to be opposite to the first driving coil 32 to drive the carrier 20 to rotate, but also to form a coupling magnetic field with the first sensing magnet 41 in the joint area to cooperate with the first position sensor 42 to detect the rotation angle of the carrier 20. Therefore, the first magnetic pole 311 is lengthened in the first direction and has a length greater than that of other magnetic poles, which can ensure that the driving between the first driving magnet 31 and the first driving coil 32 is not affected. Correspondingly, in the first direction, the first sensing magnet 41 is longer than the first driving coil 32.

[0081] Please refer to Figure 2A and Figure 3 In some embodiments, the first direction is parallel to the first axis C1, and the first sensing magnet 41 is located on the side of the first driving magnet 31 that is close to or away from the reflective element 60 in the first direction; the second axis C2 is the incident light axis of the reflective element 60 and is parallel to the second direction, the first axis C1 is the reflected light axis of the reflective element 60 and is parallel to the first direction, and the third axis C3 is parallel to the third direction, which is perpendicular to the first direction and the second direction. In some examples of the present application, the third axis C3 passes through the intersection of the first axis C1 and the second axis C2.

[0082] Preferably, the first sensing magnet 41 is located on the side of the first driving magnet 31 that is away from the reflective element 60 in the first direction. Since the installation space between the carrier 20 and the base 10 on the side close to the reflective element 60 in the first direction is small, arranging the first sensing magnet 41 away from the reflective element 60 in the first direction helps to optimize the layout of the elements inside the reflective module 100, thereby facilitating the miniaturization of the reflective module 100.

[0083] Further, in some embodiments, the projection of the first driving magnet 31 in the second direction is symmetrical with respect to the first axis C1. This symmetrical design helps to balance the mass distribution of the rotor formed by the carrier 20 and the elements fixed to the carrier 20 on both sides of the first axis C1, and also ensures that the electromagnetic driving force is symmetrically applied along the first axis C1, thereby suppressing the deflection torque and improving the rotation stability. It should be understood that, regardless of the number of first driving magnets 31, the first driving magnets 31 referred to herein are symmetrical with respect to the first axis C1, which means that, in the second direction, the entire first driving magnets 31 are symmetrical with respect to the first axis C1.

[0084] Please refer to Figure 3 and Figure 4As shown, in some embodiments, the reflection module 100 further comprises a frame 50 rotatably arranged in the base 10, and the carrier 20 is rotatably arranged in the frame 50, and rotation of the frame 50 relative to the base 10 drives rotation of the carrier 20, so that rotation of the carrier 20 relative to the base 10 can be decomposed into rotation in two directions, i.e. rotation of the carrier 20 relative to the frame 50 about an axis, and rotation of the frame 50 relative to the base 10 about another axis.

[0085] Specifically, the carrier 20, the frame 50 and the base 10 are arranged along a first direction, and the frame 50 is arranged between the carrier 20 and the base 10 along the first direction; more specifically, the frame 50 is rotatably arranged in the base 10 about a first axis C1, and the carrier 20 is rotatably arranged in the frame 50 about a third axis C3.

[0086] Please refer to Figure 2A and Figure 3 As shown, in some embodiments, a projection of the first position sensor 42 along the second axis C2 overlaps and is symmetric to the first axis C1, and correspondingly, a projection of the first sensing magnet 41 along the second axis C2 overlaps and is symmetric to the first axis C1. Since the carrier 20 also rotates with the frame 50 about the first axis C1, by symmetrically arranging the first sensing assembly 40 relative to the first axis C1, the sensing interference of rotation of the carrier 20 about the first axis C1 on the first position sensor 42 can be reduced, and the angle detection accuracy can be improved. Preferably, the number of the first driving magnets 31 in the reflection module 100 is one, and only one magnetic pole of the first driving magnet 31 on one side along the first direction abuts the first sensing magnet 41, so that the first sensing magnet 41 can be symmetrically arranged relative to the first axis C1.

[0087] Please refer to Figure 4 As shown, in some embodiments, the reflection module 100 further comprises a second driving assembly 70, which comprises a second driving magnet 71 and a second driving coil 72, one of which is arranged on the carrier 20, and the other is arranged opposite to the frame 50, for driving the carrier 20 to rotate relative to the frame 50 about the first axis C1.

[0088] Further, the second driving magnets 71 are fixed to the side of the carrier 20 along the third direction, and the second driving coils 72 are fixed to the side wall of the base 10 along the third direction and are arranged opposite to the second driving magnets 71 along the third axis C3. In this way, when the second driving coils 72 are powered, the magnetic field generated by the second driving coils 72 drives the second driving magnets 71 to rotate around the first axis C1, thereby driving the carrier 20 to rotate around the first axis C1 relative to the base 10. Further, the carrier 20 is provided with one second driving magnet 71 on each side along the third direction, and correspondingly, the base 10 is also provided with two second driving coils 72 on the side wall along the third direction.

[0089] In some embodiments, the projection of the second driving magnets 71 along the third direction is symmetrical relative to the second axis C2. With this symmetrical design, the mass distribution of the rotor formed by the carrier 20 and the elements fixed to the carrier 20 is balanced on both sides of the second axis C2.

[0090] Please refer to Figure 4 In some embodiments, the reflection module 100 further includes a second sensing assembly 80, which includes a second sensing magnet 81 and a second position sensor 82, one of which is arranged on the carrier 20 and the other is arranged opposite to the frame 50, for detecting the rotation angle of the carrier 20 around the first axis C1 relative to the frame 50.

[0091] Further, the second sensing magnet 81 is fixed to the side of the carrier 20 along the third direction, and the second position sensor 82 is fixed to the side wall of the base 10 along the third direction and is arranged opposite to the second sensing magnet 81. Further, the number of the second sensing magnet 81 and the second position sensor 82 can be one or two. When the number of the second sensing magnet 81 is one, the second sensing magnet 81 is arranged on only one side of the carrier 20. When the number of the second sensing magnet 81 is two, the second sensing magnet 81 is arranged on both sides of the carrier 20.

[0092] In some embodiments, the second sensing magnet 81 and the second driving magnet 71 are arranged on the same side of the carrier 20. On this basis, the second sensing magnet 81 and the second driving magnet 71 are arranged at intervals, the second position sensor 82 is opposite to only the second sensing magnet 81, and the second driving coil 72 is opposite to only the second driving magnet 71, so as to reduce the interference on the operation of the second position sensor 82 and the second driving coil 72 caused by the second sensing magnet 81 and the second driving magnet 71 being arranged on the same side of the carrier 20.

[0093] Further, because the space on the side of the carrier 20 is relatively large, the distance between the second sensing magnet 81 and the second driving magnet 71 is greater than the size of the second sensing magnet 81 in the direction in which the two are oppositely arranged, so as to effectively space the magnetic field influence therebetween; for example, the second sensing magnet 81 and the second driving magnet 71 are arranged in the second direction, and the distance between the two in the second direction is greater than the size of the second sensing magnet 81 in the second direction.

[0094] Further, the two poles of the second sensing magnet 81 and the second driving magnet 71 that are close to each other are different, so that the interference magnetic field facing the area of the second driving coil 72 and the second position sensor 82 is reduced.

[0095] Please refer to Figure 4 and Figure 5 , in some embodiments, the reflection module 100 further comprises a first support part 91 arranged between the carrier 20 and the frame 50, and a second support part 92 arranged between the frame 50 and the base 10, the carrier 20 is supported on the frame 50 through the first support part 91, and the frame 50 is supported on the base 10 through the second support part 92.

[0096] Specifically, the carrier 20 comprises a main body part 22 and two side parts 23. More specifically, the loading surface 221 is obliquely arranged on the main body part 22, and the two side parts 23 are oppositely arranged on the two sides of the main body part 22 along the third direction, so that the two side parts 23 and the loading surface 221 form a containing cavity 21 for accommodating the reflection element 60.

[0097] Further, as shown in Figure 5 , the surfaces of the two side parts 23 facing the frame 50 are respectively recessed to form recesses 231. The frame 50 comprises a plate body 51 and two support parts 52, specifically, the two support parts 52 are oppositely arranged on the two sides of the plate body 51 along the third direction, and extend from the plate body 51 to the carrier 20 along the first direction, so that the support parts 52 extend into the corresponding recesses 231, and thus the frame 50 supports the carrier 20. It should be understood that the support parts 52 of the frame 50 can not only support the carrier 20 in the first direction, but also support the carrier 20 in the second direction, which is beneficial to avoid the carrier 20 from being separated from the frame 50, and improve the connection reliability between the carrier 20 and the frame 50.

[0098] In some embodiments, as shown in Figure 5 and Figure 6As shown, the second support portion 92 includes at least two rotation shaft balls 921, the frame 50 is provided with at least two rotation shaft rear grooves 53, the carrier 20 is provided with at least two rotation shaft front grooves 24, the rotation shaft front groove 24 and the rotation shaft rear groove 53 are oppositely arranged along the first direction, so that the rotation shaft ball 921 is movably clamped between the rotation shaft front groove 24 and the rotation shaft rear groove 53, and the at least two rotation shaft balls 921 are penetrated along the third axis C3 to support the rotation of the carrier 20 relative to the frame 50 around the third axis C3. In at least one embodiment, the third axis C3 penetrates the two rotation shaft balls 921 and the reflective element 60.

[0099] It can be understood that the rotation shaft ball 921 arranged between the carrier 20 and the frame 50 is beneficial to reduce the friction between the carrier 20 and the frame 50, so that the rotation of the carrier 20 relative to the frame 50 around the third axis C3 is smoother, and at the same time, it is beneficial to reduce the driving force required to drive the carrier 20 to rotate, thereby improving the stability and reliability of the rotation of the carrier 20 around the third axis C3.

[0100] In some embodiments, as shown in Figure 4 , Figure 5 and Figure 6 , the rotation shaft front groove 24 is formed on the back wall of the groove 231 of the carrier 20 facing the support portion 52, and further, the rotation shaft rear groove 53 is formed on the surface of the support portion 52 of the frame 50 facing the rotation shaft front groove 24. It can be understood that a movement space is formed between the rotation shaft front groove 24 and the rotation shaft rear groove 53 oppositely arranged along the first direction, so that the rotation shaft ball 921 can be rotatably accommodated in the movement space between the rotation shaft front groove 24 and the rotation shaft rear groove 53.

[0101] In some embodiments, as shown in Figure 4 , the first support portion 91 includes a rotation support 911 and at least two auxiliary balls 912, one of the base 10 and the frame 50 is provided with the rotation support 911, and the other is provided with a rotation shaft groove 511 for accommodating the rotation support 911, so as to limit the rotation support 911, so that the frame 50 stably rotates relative to the base 10 around the first axis C1. Further, the auxiliary ball 912 cooperates with the rotation support 911 to provide a support plane for the frame 50 to smoothly support the movement of the frame 50.

[0102] The base 10, the rotating support 911 and the frame 50 are sequentially stacked along the first direction, and the rotating support 911 supports the frame 50 to rotate relative to the base 10 around the first axis C1. That is, the base 10 and the frame 50 are respectively located on opposite sides of the rotating support 911 along the first direction, and the rotating support 911 is used to keep the base 10 and the frame 50 apart along the first direction, which is beneficial to avoid interference between the frame 50 and the base 10 during rotation of the frame 50 around the first axis C1. It should be understood that, compared with the direct contact between the base 10 and the frame 50, in the embodiment, the rotating support 911 is clamped between the base 10 and the frame 50, so that the rotating support 911 supports the frame 50 along the first direction, reduces the contact area between the base 10, the rotating support 911 and the frame 50, and is beneficial to reduce the friction, so that the frame 50 rotates more smoothly around the first axis C1.

[0103] As shown in Figure 2A some embodiments, the rotating support 911 protrudes from the base 10 or the frame 50 along the first direction to form a fulcrum on the opposite surfaces of the base 10 and the frame 50, and the auxiliary ball 912 is movably mounted between the base 10 and the frame 50 to support the frame 50 to rotate around the fulcrum. That is, one of the base 10 and the frame 50 is provided with the rotating support 911, and the rotating support 911 abuts against the other of the base 10 and the frame 50 to form a fulcrum, so that the frame 50 rotates relative to the base 10 around the fulcrum. It should be understood that the rotating support 911 acts as a rotating shaft between the base 10 and the frame 50 to enable the frame 50 to rotate relative to the base 10 around the first axis C1.

[0104] As shown in Figure 1 and Figure 4 some embodiments, the rotating support 911 is movably connected with the base 10 and the frame 50 to clamp the rotating support 911 by the base 10 and the frame 50.

[0105] In some embodiments, as shown in Figure 4 the rotating support 911 deviates from the line connecting the two auxiliary balls 912 at least partially, so that the fulcrum of the rotating support 911 and the fulcrums of the two auxiliary balls 912 are not collinear, which is beneficial to more stably support the frame 50. It should be understood that the fulcrums of the two auxiliary balls 912 refer to the contact points of the auxiliary balls 912 with the frame 50 or the contact points of the auxiliary balls 912 with the base 10.

[0106] In some embodiments, the distance from the center of the rotating support 911 to the center of the two auxiliary balls 912 is equal, so that the distance from the fulcrum of the rotating support 911 to the fulcrum of the two auxiliary balls 912 is equal, thereby facilitating the rotating support 911 and the auxiliary balls 912 to provide more uniform support on the frame 50, to improve the stability and reliability of the frame 50 when rotating around the first axis C1, to reduce the risk of the frame 50 being skewed due to uneven force, and to facilitate the controllability of the reflection module 100 and the imaging quality of the camera module.

[0107] In some embodiments, as shown in FIG. 12, the frame 50 is provided with at least two auxiliary front grooves 512, and the base 10 is provided with at least two auxiliary rear grooves. The auxiliary front grooves 512 and the auxiliary rear grooves are oppositely arranged along the first direction, and the auxiliary balls 912 are movably clamped between the auxiliary front grooves 512 and the auxiliary rear grooves, so as to limit the position of the at least two auxiliary balls 912 between the frame 50 and the base 10. Figure 4

[0108] In some embodiments, one of the at least two auxiliary front grooves 512 and the at least two auxiliary rear grooves is a straight groove, and extends along the tangent direction of the virtual circle with the first axis C1 as the center, that is, in the first direction, the projection of the center of the virtual circle coincides or approaches coincides with the projection of the center of the rotating support 911. It should be understood that the limiting relationship between the rotating support 911 and the rotating shaft groove 511 provides a rotating shaft for the frame 50 to rotate around the first axis C1, and the at least two auxiliary balls 912 only serve to assist in supporting the frame 50 on the base 10. By setting one of the at least two auxiliary front grooves 512 and the at least two auxiliary rear grooves as a straight groove, the processing difficulty is reduced, the production efficiency is improved, and the production cost is reduced. Further, to reduce the resistance generated by the auxiliary balls 912, the auxiliary balls 912 are loosely accommodated in the straight groove, and the auxiliary balls 912 are in contact with the straight groove at least one point in the minimum state and at most three points in the maximum state.

[0109] It is worth mentioning that the rotating support 911 can be implemented as a main ball, that is, one main ball and at least two auxiliary balls 912 are arranged between the base 10 and the frame 50 to support the frame 50 and enable the frame 50 to rotate around the first axis C1 relative to the base 10.

[0110] In other embodiments, the auxiliary balls 912 can be three or more, and the auxiliary front grooves 512 and the auxiliary rear grooves are correspondingly provided as three or more, which is not limited in the present application.

[0111] In some embodiments, as shown in FIG. 12, the frame 50 is provided with at least two auxiliary front grooves 512, and the base 10 is provided with at least two auxiliary rear grooves. The auxiliary front grooves 512 and the auxiliary rear grooves are oppositely arranged along the first direction, and the auxiliary balls 912 are movably clamped between the auxiliary front grooves 512 and the auxiliary rear grooves, so as to limit the position of the at least two auxiliary balls 912 between the frame 50 and the base 10. Figure 4 ​As shown, at least two auxiliary front grooves 512 are arranged on the surface of the plate body 51 of the frame 50 along the first direction towards the base 10, so that the at least two auxiliary front grooves 512 are oppositely arranged with the at least two auxiliary rear grooves on the base 10 along the first direction, thereby enabling the auxiliary rolling balls 912 to be movably accommodated between the frame 50 and the base 10.

[0112] It should be understood that the auxiliary front grooves 512 and the rotation shaft rear grooves 53 are respectively located on opposite sides of the plate body 51 of the frame 50 along the first direction, the auxiliary front grooves 512 are used to cooperate with the auxiliary rear grooves on the base 10 to clamp the auxiliary rolling balls 912, thereby enabling the auxiliary rolling balls 912 and the rotation support 911 to cooperate to support the frame 50 and the carrier 20 together, so that the frame 50 and the carrier 20 rotate around an imaginary line extending along the first direction through the rotation support 911; the rotation shaft rear grooves 53 are used to cooperate with the rotation shaft front grooves 24 on the carrier 20 to clamp the rotation shaft rolling balls 921, thereby enabling the two rotation shaft rolling balls 921 to support the carrier 20, so that the carrier 20 rotates around the third axis C3 passing through the rotation shaft rolling balls 921.

[0113] In some embodiments, as shown in Figure 4 and Figure 5 As shown, the reflection module 100 further comprises a first magnetic attraction member 93 and a second magnetic attraction member 94, the first magnetic attraction member 93 is arranged on one of the base 10 and the carrier 20, and the second magnetic attraction member 94 is arranged on the other one of the base 10 and the carrier 20, a magnetic attraction force along the first direction is generated between the first magnetic attraction member 93 and the second magnetic attraction member 94, and the carrier 20 is supported on the frame 50 under the action of the magnetic attraction force. That is, through the interaction of the first magnetic attraction member 93 and the second magnetic attraction member 94, the carrier 20 is provided with a magnetic attraction force along the first direction towards the base 10, and the frame 50 is supported between the carrier 20 and the base 10 under the action of the magnetic attraction force. It should be understood that the magnetic attraction force is also conducive to clamping the auxiliary rolling balls 912 between the frame 50 and the base 10, and is also conducive to clamping the rotation shaft rolling balls 921 between the carrier 20 and the frame 50, and in the case that the camera module is subjected to an external force, it is conducive to improving the reliability of the attachment between the carrier 20, the frame 50 and the base 10, and reducing the risk of the carrier 20, the frame 50 and the base 10 being separated.

[0114] Specifically, the first magnetic attraction member 93 is implemented as a magnet, and the second magnetic attraction member 94 is implemented as a magnetic yoke (for example, a metal member containing iron) adapted to be attracted to the magnet, of course, both of which can be implemented as a magnet.

[0115] In some embodiments, as shown in Figure 4 and Figure 5As shown, the carrier 20 further comprises two extensions 25, which are oppositely arranged along the third direction and located on the surface of the main body 22 facing the base 10 along the first direction, and the two extensions 25 extend along the first direction. The plate body 51 of the frame 50 is provided with a through hole 513 along the first direction, which is adapted to pass through the two extensions 25, so that the two extensions 25 are oppositely arranged along the first direction with the base 10. Further, the two first magnetic members 93 are arranged at the ends of the two extensions 25, and the base 10 is provided with second magnetic members 94 opposite to the first magnetic members 93. Through the interaction of the first magnetic members 93 and the second magnetic members 94, the carrier 20 and the frame 50 are attached to the base 10 in a stacked manner along the first direction.

[0116] In at least one embodiment, as Figure 5 shown, the two extensions 25 are spaced apart between the two grooves 231, so that the structure of the frame 50 and the carrier 20 is more compact. In addition, the spacing between the two grooves 231 is larger than the spacing between the two extensions 25, that is, the spacing between the two fulcrums between the bracket portion 52 of the frame 50 and the grooves 231 is larger, which is conducive to the frame 50 to support the carrier 20 more stably, reduces the risk of the carrier 20 being skewed relative to the frame 50, and further improves the controllability of the reflection module 100 and the imaging quality of the camera module.

[0117] Of course, in other embodiments, the first direction can also be parallel to the second axis C2, the third axis C3 or other directions, as long as the first direction, the second direction and the third direction are perpendicular to each other.

[0118] As shown in Figure 1 , the present application also provides a camera module, which comprises the above-mentioned reflection module 100; a reflection element 60 mounted on the reflection module 100; a lens module 200 arranged in the base 10 and held on the light reflection path of the reflection element 60; an imaging module 300 arranged on the light exit side of the base 10 and receiving the light emitted by the lens module 200 for imaging; and a cover 400 covering the base 10.

[0119] Among them, the lens module 200 is arranged between the reflection module 100 and the imaging module 300, and the light is reflected by the reflection module 100 and refracted by the lens module 200, and then enters the imaging module 300, and the imaging module 300 receives the light for imaging.

[0120] It should be understood that the reflection module 100 can also be arranged between the lens module 200 and the imaging module 300, or there can be multiple reflection modules 100 and lens modules 200.

[0121] In some embodiments, the reflecting element 60 has a reflecting surface, the reflecting surface of the reflecting element 60 is adapted to reflect the light rays by a certain angle (e.g. 90°), the reflecting element 60 is mounted on the carrier 20, and the first driving assembly 30 and / or the second driving assembly 70 is adapted to drive the reflecting element 60 to rotate to realize the optical anti-shake function. The reflecting element 60 can be implemented as a prism, a plane mirror or an element coated with a reflecting layer.

[0122] In some embodiments, the lens module 200 comprises a lens assembly and a lens driving assembly, wherein the lens assembly comprises at least one movable lens group, and the lens driving assembly drives the movable lens group to move along the first axis C1 to realize the optical focusing or the optical anti-shake. Further, the lens assembly can further comprise at least one fixed lens group, and the lens driving assembly drives the movable lens group to move relative to the fixed lens group.

[0123] In some embodiments, the imaging module 300 comprises a filter assembly and a photosensitive assembly, the filter assembly is used to filter the light rays incident on the imaging module 300, the filtered light rays are incident on the photosensitive assembly, and then the photosensitive assembly receives the light rays to form an image. Wherein, the filter assembly comprises a filter and a bracket, the photosensitive assembly comprises a photosensitive chip and a chip circuit board, the photosensitive chip is electrically connected to the chip circuit board, the filter is fixed to the chip circuit board by the bracket and located above the photosensitive chip, so that the light rays are filtered by the filter and then incident on the photosensitive chip.

[0124] In some embodiments, the upper cover 400 and the base 10 are mutually buckled and fixed to form an internal space, and the carrier 20, the frame 50 and other components are accommodated in the internal space between the upper cover 400 and the base 10.

[0125] The technical features of the above-mentioned embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure.

[0126] The above-mentioned embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A reflective module, characterized by The application relates to a drive assembly for a carrier (20) of a reflective element (60), comprising: a base (10) having an inner space; the carrier (20) for carrying the reflective element (60), the carrier (20) being rotatably arranged in the base (10); a first drive assembly (30) comprising a first drive magnet (31) and a first drive coil (32), one of which is arranged in the base (10) and the other is arranged opposite to the carrier (20), for driving the carrier (20) to rotate relative to the base (10); a first sensing assembly (40) comprising a first sensing magnet (41) and a first position sensor (42), the first sensing magnet (41) being arranged in one of the base (10) and the carrier (20) in which the first drive magnet (31) is arranged, and the first position sensor (42) being arranged opposite to the other, for acquiring position change information of the carrier (20) relative to the base (10); wherein the first sensing magnet (41) and the first drive magnet (31) are arranged adjacent to each other along a first direction, and a joint area is formed between the first sensing magnet (41) and the first drive magnet (31), the first position sensor (42) is opposite to the joint area along a second direction, and the second direction is perpendicular to the first direction; the minimum distance between the first sensing magnet (41) and the first position sensor (42) along the second direction is smaller than the minimum distance between the first drive magnet (31) and the first position sensor (42) along the second direction.

2. The reflective module of claim 1, wherein, The mounting position of the first sensing magnet (41) is closer to the first position sensor (42) along the second direction than the mounting position of the first drive magnet (31), and / or the length of the first sensing magnet (41) along the second direction is greater than the length of the first drive magnet (31) along the second direction.

3. The reflective module of claim 1, wherein, The two magnetic poles of the first sensing magnet (41) and the first drive magnet (31) adjacent to each other along the first direction are different.

4. The reflective module of claim 1, wherein, The distance between the first sensing magnet (41) and the first drive magnet (31) along the first direction is less than 0.3 mm.

5. The reflective module of claim 4, wherein, The first sensing magnet (41) and the first drive magnet (31) are attached to each other along the first direction.

6. The reflective module of claim 4, wherein, A separation piece (26) is arranged between the first sensing magnet (41) and the first drive magnet (31) along the first direction.

7. The reflective module of claim 1, wherein, The projection of the first position sensor (42) along the second direction is opposite to the middle position of the joint area along the first direction, or is deviated to the side of the first sensing magnet (41) along the first direction with the middle position as the center.

8. The reflective module of claim 1, wherein, The projection of the first position sensor (42) along the second direction is opposite to the middle position of the joint area along a third direction, and the third direction is perpendicular to the first direction and the second direction.

9. The reflective module of claim 1, wherein, The first drive magnet (31) is adjacent to the first sensing magnet (41) on both sides along the first direction, and two joint areas are formed correspondingly, and the first position sensor (42) is arranged in the joint area along the second direction.

10. The reflective module of claim 1, wherein, The poles of the first driving magnet (31) are arranged in sequence along the first direction.

11. The reflective module of claim 10, wherein, The pole of the first driving magnet (31) adjacent to the first sensing magnet (41) along the first direction is a first pole (311), and the length of the first pole along the first direction is greater than that of other poles of the first driving magnet (31).

12. The reflective module of claim 10, wherein, The first direction is parallel to the first axis; wherein the reflection element (60) is configured to reflect light rays incident along the second axis to the first axis.

13. The reflective module of claim 12, wherein, The first sensing magnet (41) is located on the side of the first driving magnet (31) away from the reflection element (60) along the first direction.

14. The reflective module of claim 12, wherein, The reflection module further comprises a frame (50) rotatably arranged in the base (10) around the first axis, and the carrier (20) is rotatably arranged in the frame (50) around a third axis, and the projection of the first sensing magnet (41) along the second axis overlaps the first axis and is symmetrical relative to the first axis; wherein the second direction is parallel to the second axis, and the third axis is perpendicular to the first axis and the second axis.

15. An image capture module, comprising: Comprise: The reflection module (100) according to any one of claims 1 to 14; A reflection element (60) mounted in the reflection module (100); A lens module (200) arranged in the base (10) and held on the light reflection path of the reflection element (60); An imaging module (300) arranged on the light exit side of the base (10) and configured to image the light emitted by the lens module (200); An upper cover (400) covering the base (10).

Images