Lens driving module and camera module

Abstract

The invention relates to a lens driving module and a camera module. The lens driving module comprises a base; the lens carrier is movably arranged in the internal space and is used for carrying an optical lens; the driving assembly is configured to drive the lens carrier to move relative to the base in the X-axis direction; the two supporting magnetic attraction assemblies are arranged on the two sides of the lens carrier in the Y-axis direction perpendicular to the X-axis direction, each supporting magnetic attraction assembly comprises a supporting piece and a magnetic attraction piece, the supporting pieces are arranged between the lens carrier and the base, parts of the magnetic attraction pieces are arranged on the lens carrier, the other parts of the magnetic attraction pieces are oppositely arranged on the base, and magnetic attraction force is generated between the two parts; the supporting pieces and the magnetic attraction pieces of each supporting magnetic attraction assembly are distributed in the X-axis direction, one supporting magnetic attraction assembly comprises at least two supporting pieces and at least one magnetic attraction piece located between the two supporting pieces, and the other supporting magnetic attraction assembly comprises at least two magnetic attraction pieces and at least one supporting piece located between the two magnetic attraction pieces.

Description

Technical Field

[0001] The present invention relates to the technical field related to optical imaging, and in particular to a lens driving module and a camera module. Background Art

[0002] With the popularization of mobile electronic devices, the related technologies of camera modules applied to mobile electronic devices for helping users to obtain images have been rapidly developed and improved. Currently in the market, consumers have an increasing demand for shooting with camera modules configured in mobile electronic devices.

[0003] At present, the optical lens of the camera module is usually set in the lens carrier of the lens driving module, and the optical lens is driven to move by the driving component of the lens driving module to achieve the optical focus or optical zoom function. Furthermore, the lens carrier is movably supported on the support of the lens driving module, and a magnetic suction component capable of generating magnetic suction force is also provided to adsorb the lens carrier on the support to prevent the lens carrier from loosening from the support due to vibration or other reasons.

[0004] However, due to the limited space inside the camera module, the magnetic suction component can usually only be set at the edge of the lens carrier, such as the side. When the distance between the magnetic suction force acting on the lens carrier and the line connecting two supporting points is small, the lens carrier is prone to overturning. Summary of the invention

[0005] Based on this, it is necessary to provide a lens drive module and a camera module that can effectively reduce the risk of overturning in order to address the problem that the lens carrier in the current camera module is prone to overturning.

[0006] The present application first provides a lens driving module, comprising: a base having an internal space; a lens carrier movably arranged in the internal space for carrying an optical lens; a driving component configured to drive the lens carrier to move relative to the base along the X-axis direction; two groups of supporting magnetic suction components, which are arranged on both sides of the lens carrier along the Y-axis direction perpendicular to the X-axis direction, the supporting magnetic suction components comprising a supporting member and a magnetic suction member, the supporting member being arranged between the lens carrier and the base to form a fulcrum on the opposite surfaces of the lens carrier and the base, the magnetic suction member being partially arranged on the lens carrier and the other part being relatively arranged on the base, and a magnetic suction force being generated between the two parts; the supporting members and the magnetic suction members of each group of the supporting magnetic suction components are distributed along the X-axis direction, wherein one group of the supporting magnetic suction components comprises at least two supporting members and at least one magnetic suction member located between the two supporting members, and the other group of the supporting magnetic suction components comprises at least two magnetic suction members and at least one supporting member located between the two magnetic suction members. In one embodiment, the two groups of supporting magnetic components include a first supporting magnetic component and a second supporting magnetic component arranged on opposite sides of the lens carrier along the Y-axis direction, wherein the first supporting magnetic component includes a first magnetic component, a first supporting component and a second magnetic component distributed along the positive direction of the X-axis, and the second supporting magnetic component includes a second supporting component, a third magnetic component and a third supporting component distributed along the positive direction of the X-axis.

[0007] In one embodiment, D1<D2, and the sum of the magnetic attraction forces of the first magnetic component and the second magnetic component is less than the magnetic attraction force of the third magnetic component, wherein D1 is the distance between the fulcrum of the second support component and the fulcrum of the third support component, and D2 is the perpendicular distance from the fulcrum of the first support component to the line connecting the fulcrum of the second support component and the fulcrum of the third support component.

[0008] In one embodiment, the second support member and the third support member are disposed at two ends of the lens carrier along the X-axis direction, and the projection of the first support member along the Y-axis direction is located at the midpoint of the second support member and the third support member.

[0009] In one embodiment, the first magnetic attraction component and the second magnetic attraction component are symmetrically arranged along the X-axis direction with the first support component as the center, and the magnetic attraction forces of the two are equal.

[0010] In one of the embodiments, the three magnetic components form an isosceles triangle with the third magnetic component as the vertex; the magnetic component includes a magnetic magnet and a magnetic yoke, one of the magnetic magnet and the magnetic yoke is arranged on the lens carrier, and the other is relatively arranged on the base, and one of the base or the lens carrier on which the magnetic magnet is arranged is also provided with three supporting grooves corresponding to the supporting components one by one, wherein the supporting groove corresponding to the first supporting component is the first supporting groove, and the centers of the three supporting grooves form an isosceles triangle with the center of the first supporting groove as the vertex, and the third magnetic component is directly opposite to the center of the first supporting groove along the Y-axis direction.

[0011] In one embodiment, the three supporting points of the two groups of supporting magnetic components are connected to form a supporting surface triangle, the midpoints of the three magnetic magnets are connected to form a magnetic triangle, and the overlapping area between the supporting surface triangle and the magnetic triangle is greater than or equal to one half of the area of ​​the magnetic triangle.

[0012] In one embodiment, the supporting member is a ball, the lens carrier is provided with a plurality of first ball grooves corresponding one-to-one to the balls, the base is provided with a plurality of second ball grooves corresponding one-to-one to the balls, and the balls can be movably clamped between the corresponding first ball grooves and the second ball grooves.

[0013] In one embodiment, a backing plate is fixed to the bottom wall of the first ball rolling groove and / or the second ball rolling groove.

[0014] In one embodiment, the magnetic attraction component includes a magnetic magnet and a magnetic yoke, one of the magnetic magnet and the magnetic yoke is arranged on the lens carrier, and the other is arranged relatively to the base along the Z-axis direction, and the length difference between the magnetic magnet and the corresponding magnetic yoke along the X-axis direction is greater than or equal to the moving stroke of the lens carrier.

[0015] In one embodiment, the length of the magnetic yoke along the X-axis direction is greater than the corresponding magnetic magnet.

[0016] In one embodiment, the driving assembly includes a driving magnet and a driving coil, one of the driving magnet and the driving coil is disposed on the lens carrier, and the other is disposed opposite to the base.

[0017] In one embodiment, a circuit board groove is formed on the outer wall of the base, and the lens driving module also includes a circuit board embedded in the circuit board groove in a conformal manner, the circuit board includes a first circuit side plate located on one side of the base along the Y-axis direction, the base is formed with a coil through groove along the Z-axis direction, the driving coil is accommodated in the coil through groove and electrically connected to the first circuit side plate, and the driving magnet is embedded in the lens driving module.

[0018] In one embodiment, the circuit board includes a first circuit side plate, a circuit bottom plate and a second circuit side plate fixed in sequence, the circuit bottom plate is located on the side of the base away from the lens carrier along the Z axis, the first circuit side plate and the second circuit side plate are located on both sides of the base along the Y axis direction, and the second circuit side plate is electrically connected to a drive control chip facing the drive coil on one side close to the first circuit side plate, and a structural reinforcement plate corresponding to the drive control chip is fixed on the other side.

[0019] In one embodiment, the lens driving module further includes a sensing element for sensing the position change of the driving magnet, the sensing element being embedded in the base and located on the side of the driving coil away from the lens carrier along the Z axis. The second aspect of the present application provides a camera module, comprising: a reflection module, which reflects light propagating along the Z axis direction to the X axis direction; the above-mentioned lens driving module, the lens driving module being located on the light reflection path of the reflection module; an imaging module, the imaging module being arranged on the light emitting side of the base and receiving the light emitted by the lens driving module for imaging; and a housing, the housing being covered on the base.

[0020] In one embodiment, the first circuit side plate and the second circuit side plate are also electrically connected to the sensing element of the reflection module. The lens driving module can ensure that the position of the total magnetic attraction falls within the range of the support surface and is as far away as possible from the connection line between each support point, thereby effectively reducing the overturning risk of the lens carrier without increasing the size of the lens carrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional picture of the camera module of this application after the outer shell and the photosensitive module are hidden; Figure 2 This is an exploded view of the lens drive module of this application; Figure 3 for Figure 1 A three-dimensional image of the center lens carrier and the supporting magnetic suction assembly at another angle; Figure 4 This is a bottom view of the lens drive module of this application with the base and yoke hidden; Figure 5 for Figure 2 A magnified view of the middle base; Figure 6 for Figure 2 A three-dimensional image of the base and the circuit board at another angle; Figure 7 for Figure 1Exploded view of the buffer component; Figure 8 This is a cross-sectional view of the camera module of this application.

[0022] 1. Reference numerals: 100, lens driving module; 200, reflection module; 300, imaging module; 310, photosensitive component; 311, photosensitive chip; 312, photosensitive circuit board; 320, filter component; 321, filter element; 322, filter bracket; 400, housing; 10, base; 11, second ball groove; 12, circuit board groove; 13, coil groove; 14, chip groove; 15, yoke groove; 20, lens carrier; 20a, metal part; 20b, injection molding part; 21, first ball groove; 21a, pad; 22, magnetic magnet groove; 23, driving magnet groove; 30, optical lens; 40, driving component; 41, driving magnet; 42, driving coil; 50, supporting magnetic component; 51, supporting member; 511, first supporting member; 5 12. Second support member; 513. Third support member; 52. Magnetic member; 521. First magnetic member; 521a. First magnetic magnet; 521b. First magnetic yoke; 522. Second magnetic member; 522a. Second magnetic magnet; 522b. Second magnetic yoke; 523. Third magnetic member; 523a. Third magnetic magnet; 523b. Third magnetic yoke; 60. Circuit board; 61. First circuit side panel; 62. Circuit bottom panel; 63. Second circuit side panel; 64. Drive control chip; 65. Structural reinforcement sheet; 66. Circuit back panel; 67. Electrode; 70. Sensing element; 80. Buffer assembly; 81. First buffer; 82. Second buffer; 83. Third buffer; 84. Fourth buffer; 85. Fifth buffer; 86. Fixing bracket. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of 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 violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean 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, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0029] For ease of description, in this application, the optical axis direction of the optical lens 30 is defined as the X-axis direction, the direction of the magnetic attraction force of the magnetic suction component 52 in the supporting magnetic suction assembly 50 is defined as the Z-axis direction, and the direction perpendicular to both the Z-axis and the X-axis is defined as the Y-axis direction; further, the light emission direction of the optical lens 30 is defined as the positive direction of the X-axis, and vice versa as the negative direction of the X-axis. In some cases, the X-axis direction is perpendicular to the Z-axis direction. It should be understood that the verticality described in this application includes both verticality with an intersection and spatial verticality without an intersection.

[0030] It should be noted that the above definitions of the positive direction of the X-axis and the negative direction of the X-axis are only specific reference direction settings made for the convenience of explaining the relevant technical solutions in this application, and are not intended to limit the absolute pointing of the relevant directions in actual application scenarios. This definition does not mean that there must be an absolute zero point between the positive direction and the negative direction. They are only set based on the relative direction of the optical axis of the optical lens 30 to simplify the description and understanding of the relevant technical features. The positive direction and the negative direction are two opposite directions of an axis, used to describe different directions along the axis. In different usage scenarios, changes in the direction of the actual light propagation path caused by external factors may cause the positive direction of the X-axis or the negative direction of the X-axis to deviate from the above definition, but as long as they are within the scope of the optical path design of the optical lens 30, they should be regarded as a reasonable extension and expansion of the direction definition of this application.

[0031] Please combine Figure 1 as well as Figure 2As shown, the present application first provides a lens driving module 100, comprising: a base 10, having an internal space; a lens carrier 20, movably disposed in the internal space, for carrying an optical lens 30; a driving assembly 40, configured to drive the lens carrier 20 to move relative to the base 10 along the X-axis direction; two groups of supporting magnetic suction assemblies 50, disposed on both sides of the lens carrier 20 along the Y-axis direction perpendicular to the X-axis direction, the supporting magnetic suction assemblies 50 comprising a supporting member 51 and a magnetic suction member 52, the supporting member 51 being disposed between the lens carrier 20 and the base 10, so as to move the lens carrier 20 and the base 10. The opposite surfaces of the magnetic suction component 52 form a fulcrum, a part of the magnetic suction component 52 is arranged on the lens carrier 20, and the other part is arranged relatively to the base 10, and a magnetic suction force is generated between the two parts to form a group of magnetic suction points at the centers of the two parts of the magnetic suction component 52; each group of support members 51 and magnetic suction members 52 supporting the magnetic suction component 50 are distributed along the X-axis direction, wherein one group of support members 50 includes at least two support members 51 and at least one magnetic suction member 52 located between the two support members 51, and the other group of support members 50 includes at least two magnetic suction members 52 and at least one support member 51 located between the two magnetic suction members 52.

[0032] In the present application, two groups of supporting magnetic components 50 are arranged on opposite sides of the lens carrier 20, and each group of supporting magnetic components 50 includes a supporting member 51 and a magnetic member 52. That is to say, the opposite sides of the lens carrier 20 can obtain the supporting effect provided by the supporting member 51 and the magnetic effect provided by the magnetic member 52, so that the supporting and magnetic effects of the supporting magnetic components 50 on both sides of the lens carrier 20 are relatively balanced.

[0033] Specifically, one group of supporting magnetic components 50 forms at least two fulcrums and at least one magnetic attraction point is formed between the two fulcrums, and the other group of supporting magnetic components 50 forms at least two magnetic attraction points and at least one fulcrum is formed between the two magnetic attraction points. Therefore, the two groups of supporting magnetic components 50 form a total of three fulcrums and three magnetic attraction points. In other words, the lines connecting the adjacent fulcrums of the two groups of supporting magnetic components 50 and the lines connecting the adjacent magnetic attraction points form two relative and staggered triangles, that is, the triangles formed by the lines connecting the adjacent fulcrums of the two groups of supporting magnetic components 50 and the triangles formed by the lines connecting the adjacent magnetic attraction points are at least partially overlapped. It should be understandable that the triangular support surface formed by the three fulcrums has a strong stability. By ensuring that the fulcrum lines form at least one triangle, the support stability can be further improved on the basis of balanced support of the lens carrier 20.

[0034] It should be understood that the support magnetic suction component 50 forms multiple fulcrums between the lens carrier 20 and the base 10, and the connection line of each fulcrum forms a support surface. At this time, the closer the distance between the position of the magnetic suction force and the line connecting two of the fulcrums is, the shorter the force arm of the magnetic suction force is, and the greater the possibility of the lens carrier 20 tipping over. In other words, the closer the distance between the position of the magnetic suction force and the line connecting the fulcrums is, the greater the risk of tipping over.

[0035] Furthermore, in the present application, the line connecting the fulcrums formed by the two groups of supporting magnetic suction components 50 and the line connecting the magnetic suction points form two relative and staggered triangles, which can ensure that the position of the total magnetic suction force falls within the support surface and is as far away as possible from the line connecting any two fulcrums, thereby effectively reducing the risk of overturning of the lens carrier 20.

[0036] Please combine Figure 3 as well as Figure 4 As shown, in some embodiments, the two groups of supporting magnetic suction components 50 include a first supporting magnetic suction component and a second supporting magnetic suction component disposed on opposite sides of the lens carrier 20 along the Y-axis direction, wherein the first supporting magnetic suction component includes a first magnetic suction member 521, a first supporting member 511, and a second magnetic suction member 522 distributed along the positive direction of the X-axis, and the second supporting magnetic suction component includes a second supporting member 512, a third magnetic suction member 523, and a third supporting member 513 distributed along the positive direction of the X-axis. In other words, the first supporting magnetic suction component and the second supporting magnetic suction component form three magnetic suction points and three fulcrums, and the connecting line of the three magnetic suction points and the connecting line of the three fulcrums form two opposite and staggered triangles.

[0037] It should be understood that by increasing the number of magnetic parts 52, the uniformity of magnetic attraction can be further increased, and by increasing the area of ​​the triangle formed by the three fulcrums, the support stability can be further increased. However, it will also inevitably increase the equipment cost and space occupancy. The above-mentioned first supporting magnetic attraction component and the second supporting magnetic attraction component form two relative and staggered triangles through the connecting lines of the three magnetic points and the connecting lines of the three fulcrums, which can achieve relatively excellent support and magnetic attraction effects with minimal space occupancy.

[0038] Of course, in some other embodiments, the first supporting magnetic suction component and the second supporting magnetic suction component may also be provided with more supporting parts 51 and / or magnetic suction parts 52 to further disperse the fulcrums and magnetic suction points, so as to further improve the support and magnetic suction stability of the lens carrier 20. It is only necessary to ensure that the first supporting magnetic suction component forms at least two fulcrums and at least one magnetic suction point is formed between the two fulcrums, and the second supporting magnetic suction component forms at least two magnetic suction points and at least one fulcrum is formed between the two magnetic suction points.

[0039] According to the above discussion, the support surface triangle formed by the connecting lines of the fulcrums of the three support members 51 and the magnetic attraction combined force of the three magnetic members 52 will increase the risk of overturning when the force position is close to any side line of the support surface triangle. Therefore, by limiting the magnetic attraction combined force position to maintain a certain distance from the three side lines of the support surface triangle, the risk of overturning can be effectively reduced.

[0040] For ease of description, the line between the fulcrum of the second support member 512 and the fulcrum of the third support member 513 is defined as the base of the support surface triangle, and the line between the fulcrum of the first support member 511 and the fulcrum of the second support member 512, and the line between the fulcrum of the first support member 511 and the fulcrum of the third support member 513 are defined as the two hypotenuses of the support surface triangle.

[0041] For this, please refer to Figure 4 As shown, in some embodiments, D1<D2, and the sum of the magnetic attraction forces of the first magnetic member 521 and the second magnetic member 522 is less than the magnetic attraction force of the third magnetic member 523, wherein D1 is the distance between the fulcrum of the second support member 512 and the fulcrum of the third support member 513 (i.e., the length of the base of the support surface triangle), and D2 is the perpendicular distance from the fulcrum of the first support member 511 to the line connecting the fulcrum of the second support member 512 and the fulcrum of the third support member 513 (i.e., the perpendicular distance from the fulcrum of the first support member 511 to the base of the support surface triangle). By limiting D1 to be less than D2, the size of the support surface triangle along the Y-axis direction is greater than the size along the X-axis direction. That is to say, for the points inside the support surface triangle, the distance between them and the hypotenuse is relatively short, and the distance between them and the base is relatively long. Therefore, by limiting the sum of the magnetic forces of the first magnetic component 521 and the second magnetic component 522 to be smaller than the magnetic force of the third magnetic component 523, the force position of the magnetic combined force within the support surface triangle can be located close to the base along the Y-axis direction, so as to increase the distance between the force position of the magnetic combined force and the two hypotenuses, and reduce the distance between the force position of the magnetic combined force and the base, so as to achieve a certain distance between the force position of the magnetic combined force and the three side lines of the support surface triangle, so as to achieve the effect of reducing the risk of overturning.

[0042] Please refer to Figure 4As shown, in some embodiments, the second support member 512 and the third support member 513 are arranged at both ends of the lens carrier 20 along the X-axis direction, and the projection of the first support member 511 along the Y-axis direction is located at the midpoint of the second support member 512 and the third support member 513. It should be understood that, under the premise that each fulcrum forms a support surface, the larger the spacing between each fulcrum, the more conducive to improving the stability of the support. Therefore, arranging the second support member 512 and the third support member 513 at both ends of the lens carrier 20 along the X-axis direction can maximize the distance between the second support member 512 and the third support member 513. On this basis, arranging the first support member 511 at the middle position of the second support member 512 and the third support member 513 can maximize the distance from the first support member 511 to the second support member 512 and the third support member 513, thereby facilitating improving the stability of the support.

[0043] In some embodiments, the first magnetic member 521 and the second magnetic member 522 are arranged at both ends of the lens carrier 20 along the X-axis direction, and the projection of the third magnetic member 523 along the Y-axis direction is located at the midpoint of the first magnetic member 521 and the second magnetic member 522. Similarly, it is beneficial to improve the uniformity of magnetic attraction between the lens carrier 20 and the base 10. Preferably, the first magnetic member 521 and the second magnetic member 522 are symmetrically arranged along the X-axis direction with the first support member 511 as the center, and the magnetic attraction forces of the two are equal, so that the action position of the total magnetic attraction force of the first magnetic member 521 and the second magnetic member 522 is collinear with the center of the support surface formed by the three fulcrums along the Y-axis direction, thereby making the action position of the total magnetic attraction force of the first magnetic member 521, the second magnetic member 522 and the third magnetic member 523 as close as possible to the center of the support surface, so as to improve the magnetic attraction stability and anti-overturning performance.

[0044] More preferably, the three magnetic components 52 form an isosceles triangle with the third magnetic component 523 as the vertex angle, and the magnetic component 52 includes a magnetic magnet and a yoke, one of the magnetic magnet and the yoke is arranged on the lens carrier 20, and the other is relatively arranged on the base 10, and the three magnetic components 52 form an isosceles triangle with the third magnetic component 523 as the vertex angle; the base 10 or the lens carrier 20 provided with the magnetic magnet is also provided with three support grooves corresponding to the support components 51 one by one, wherein the support groove corresponding to the first support component 511 is the first support groove, and the centers of the three support grooves form an isosceles triangle with the center of the first support groove as the vertex angle, and the third magnetic component 523 is opposite to the center of the first support groove along the Y-axis direction, so that the center of the support surface formed by the centers of the three support grooves and the position of action of the total magnetic attraction force of the three magnetic components 52 are on a straight line, thereby reducing the possibility of overturning.

[0045] Furthermore, the three supporting points of the two groups of supporting magnetic components 50 are connected to form a supporting surface triangle, and the centers of the three magnetic magnets are connected to form a magnetic triangle. The overlapping area of ​​the supporting surface triangle and the magnetic triangle is half or more of the magnetic triangle. It should be understood that the larger the area of ​​the supporting surface triangle, the better the stability. Therefore, the second support member 512 and the third support member 513 are arranged at both ends of the lens carrier 20 as much as possible along the X-axis direction. The size of the lens carrier 20 is limited. By limiting the overlapping area of ​​the supporting surface triangle and the magnetic triangle to be greater than or equal to one-half of the magnetic triangle, the magnetic stability and anti-overturning performance can be improved as much as possible under the premise of effective size of the lens carrier 20.

[0046] It should be noted that since the relative position relationship between the support member 51 and the magnetic magnet will change with the movement of the lens carrier 20, the fulcrum of the above-mentioned support member 51 refers to the center point of the support groove on the same side of the support member 51 and the magnetic magnet; that is, the support surface triangle is a triangle formed by the lines connecting the center points of the three support grooves on the same side of the magnetic magnet.

[0047] Please combine Figure 3 as well as Figure 5 As shown, in some embodiments, the support member 51 is a ball, the support groove includes a first ball groove 21 and a second ball groove 11, the lens carrier 20 is provided with a plurality of first ball grooves 21 corresponding one to the balls, and the base 10 is provided with a plurality of second ball grooves 11 corresponding one to the balls, and the balls can be movably clamped between the corresponding first ball grooves 21 and the second ball grooves 11.

[0048] It can be understood that the ball is used as the support member 51 and is movably arranged between the first ball groove 21 and the second ball groove 11, the friction type between the lens carrier 20 and the base 10 is rolling friction, and the ball is in point contact with the bottom wall of the first ball groove 21 and the bottom wall of the second ball groove 11, which can effectively reduce the friction resistance between the lens carrier 20 and the base 10. At this time, the contact point between the ball and the bottom wall of the first ball groove 21 and the bottom wall of the second ball groove 11 is the fulcrum.

[0049] Preferably, the length of at least one of the first ball groove 21 and the second ball groove 11 along the X-axis direction is greater than or equal to the moving stroke of the lens carrier 20, so that the cooperation between the ball and the ball groove can guide the movement of the lens carrier 20.

[0050] More preferably, the cross-section of the first ball groove 21 and the second ball groove 11 along the YOZ direction is trapezoidal, and the shorter side bottom edge of the trapezoid is the groove bottom. The ball contacts the shorter bottom edge and both side edges of the trapezoid at the same time, and the ball forms three-point contact with the inner wall of the ball groove, which can effectively improve the guiding and supporting stability while maintaining a small friction force.

[0051] In some embodiments, the support member 51 can also be configured as a guide column structure, in which the guide column is in line contact with the base 10 and the lens carrier 20. When the lens carrier 20 moves, the friction is large, but the support stability is relatively high. At this time, the fulcrum is the midpoint of the contact line between the ball and the base 10 and the lens carrier 20 along the Z-axis direction.

[0052] In some embodiments, the support member 51 can also be configured to be fixed to either the base 10 or the lens carrier 20. At this time, the friction type when the base 10 and the lens carrier 20 move relative to each other is sliding friction. The friction is slightly larger, but the guiding performance and stability during the movement are relatively high.

[0053] Please refer to Figure 3 As shown, in some embodiments, a pad 21a is fixed to the bottom wall of the first ball groove 21 and / or the second ball groove 11. The pad 21a is made of metal or other high-strength materials to increase the structural strength of the bottom of the ball groove, and to prevent the lens driving module 100 from being pressed out due to excessive pressure from the ball on the bottom of the groove during use. Preferably, the bottom wall of the first ball groove 21 corresponding to the first support member 511 is fixed with a pad 21a.

[0054] Please combine Figure 2 , Figure 3 as well as Figure 5 As shown, in some embodiments, the magnetic attraction component 52 includes a magnetic magnet and a magnetic yoke, one of the magnetic magnet and the magnetic yoke is disposed on the lens carrier 20, and the other is relatively disposed on the base 10, and the length difference between the magnetic magnet and the corresponding magnetic yoke along the length direction of the X-axis is greater than or equal to the moving stroke of the lens carrier 20, so as to ensure that in the full movement stroke of the lens carrier 20, the magnetic magnet and the magnetic yoke of the magnetic attraction component 52 are always corresponding, that is, the magnetic attraction component 52 can always provide a stable magnetic attraction force.

[0055] Preferably, the length of the yoke along the X-axis direction is greater than the length of the magnetic magnet. It should be understood that if the length of the magnetic magnet is greater than the length of the yoke, when the relative position of the magnetic magnet and the yoke changes, the direction of the magnetic attraction between the two will also deflect accordingly, thereby affecting the magnetic attraction stability; and by setting the length of the yoke to be greater than the length of the magnetic magnet, it can be ensured that the magnetic attraction between the magnetic magnet and the yoke is always along the Z-axis direction.

[0056] More preferably, the magnetic magnet is arranged on the lens carrier 20, and the magnetic yoke is arranged on the base 10 relatively. It should be understood that during the movement of the lens carrier 20, the ball moves with the movement of the lens carrier 20, that is, the support surface formed by each fulcrum of the support magnetic attraction component 50 moves with the lens carrier 20. On this basis, a smaller magnetic magnet is arranged on the lens carrier 20, and the magnetic magnet can move with the movement of the lens carrier 20, so that the position of each magnetic attraction force of the support magnetic attraction component 50 remains unchanged relative to the position of the support surface, thereby ensuring that the support and magnetic attraction stability of the support magnetic attraction component 50 will not change with the movement of the lens carrier 20.

[0057] That is to say, in this embodiment, the fulcrum of the support member 51 is the midpoint of the first ball rolling groove 21 , and the support surface triangle is a triangle formed by connecting the midpoints of the three first ball rolling grooves 21 .

[0058] Specifically, the first magnetic component 521 includes a first magnetic magnet 521a and a first magnetic yoke 521b, one of the first magnetic magnet 521a and the first magnetic yoke 521b is arranged on the lens carrier 20, and the other is arranged relatively to the base 10; the second magnetic component 522 includes a second magnetic magnet 522a and a second magnetic yoke 522b, one of the second magnetic magnet 522a and the second magnetic yoke 522b is arranged on the lens carrier 20, and the other is arranged relatively to the base 10; the third magnetic component 523 includes a third magnetic magnet 523a and a third magnetic yoke 523b, one of the third magnetic magnet 523a and the third magnetic yoke 523b is arranged on the lens carrier 20, and the other is arranged relatively to the base 10.

[0059] More specifically, the lens carrier 20 is provided with a magnetic magnet groove 22 on the side away from the lens carrier 20 along the Z axis, and the magnetic magnet is embedded in each magnetic magnet groove 22. The base 10 is provided with a yoke groove 15 corresponding to each magnetic magnet groove 22, and each yoke is correspondingly embedded in each yoke groove 15. Embedding the yoke in the base 10 can help reduce the thickness of the base 10, thereby improving the overall compactness of the lens driving module 100.

[0060] In some embodiments, the lens carrier 20 includes a metal part 20a and an injection molded part 20b, wherein the metal part 20a and the injection molded part 20b are integrally formed by an insert injection molding process, and the metal part 20a only needs a smaller thickness to provide a stronger structural strength, thereby reducing the bottom surface thickness of the lens carrier 20 as much as possible without sacrificing the structural strength, thereby improving the overall compactness of the lens driving module 100.

[0061] Please combine Figure 2 as well as Figure 6As shown, in some embodiments, the driving assembly 40 includes a driving magnet 41 and a driving coil 42, one of which is disposed on the lens carrier 20, and the other is disposed relatively on the base 10. The driving coil 42 is used to drive the driving magnet 41 to move along the X-axis after being energized, that is, the driving coil 42 can drive the lens carrier 20 and the optical lens 30 to move along the X-axis direction through the driving magnet 41.

[0062] Specifically, the driving magnet 41 is arranged on the lens carrier 20, and the driving coil 42 is arranged on the base 10; it is understandable that since the lens carrier 20 needs to move along the X-axis direction relative to the base 10 for focusing and adjusting the focus, if the driving coil 42 is arranged on the lens carrier 20, it will cause difficulty in line connection.

[0063] Furthermore, the driving magnet 41 has two magnetic poles on one side close to the driving coil 42, and the two magnetic poles are distributed along the X-axis direction, and the long side of the driving coil 42 is parallel to the X-axis direction, so as to increase the force arm of the driving force, which is beneficial to improve the driving effect of the driving component 40. Furthermore, there is a non-magnetic area between the two magnetic poles on the side of the driving magnet 41 close to the driving coil 42, and the non-magnetic area is directly opposite to the driving coil 42.

[0064] Please combine Figure 1 , Figure 2 as well as Figure 6 As shown, in some embodiments, a circuit board groove 12 is opened on the outer wall of the base 10, and the lens driving module 100 also includes a circuit board 60 that is contoured and embedded in the circuit board groove 12. The circuit board 60 is electrically connected to the lens driving module 100 and the reflection module 200. The circuit board 60 includes a first circuit side plate 61 located on one side of the base 10 along the Y-axis direction. The base 10 is opened along the Z-axis direction. The drive coil 42 is accommodated in the coil groove 13 and is electrically connected to the first circuit side plate 61. The drive magnet 41 is embedded in the lens driving module 100 and is directly opposite to the drive coil 42.

[0065] It can be understood that embedding the circuit board 60 in the circuit board groove 12 on the outer wall of the base 10 can, on the one hand, reduce space occupancy and make the structure of the reflection module more compact; on the other hand, compared with grooving the inner wall of the base 10, the processing difficulty of grooving the outer wall is lower and the installation of the circuit board 60 is more convenient.

[0066] Specifically, the lens carrier 20 is provided with a driving magnet groove 23, and the driving magnet 41 is embedded in the driving magnet groove 23. In conjunction with the driving magnet 41 being embedded in the lens driving module 100, on the one hand, the size of the lens driving module 100 along the Y-axis direction can be reduced and the overall compactness of the lens driving module 100 can be improved. On the other hand, the driving coil 42 is directly opposite to the driving magnet 41 through the coil groove 13, which can reduce the distance between the two and is beneficial to improving the driving force.

[0067] Please combine Figure 2 as well as Figure 6 As shown, in some embodiments, the circuit board 60 includes a first circuit side plate 61, a circuit bottom plate 62 and a second circuit side plate 63 that are fixed in sequence, the circuit bottom plate 62 is located on the side of the base 10 away from the lens carrier 20 along the Z axis, the first circuit side plate 61 and the second circuit side plate 63 are located on both sides of the base 10 along the Y axis direction, and the second circuit side plate 63 is electrically connected to the driving control chip 64.

[0068] It can be understood that the drive control chip 64 is used to control the reflection module 200 to achieve anti-shake, and to control the lens drive module 100 to achieve focus and zoom. Setting the drive control chip 64 on the second circuit side panel 63 helps to reduce the concentration of electronic components. That is to say, by respectively setting the drive component 40 and the drive control chip 64 on two circuit side panels, it is convenient to assemble the drive component 40.

[0069] Specifically, the drive control chip 64 is disposed on the side of the second circuit side plate 63 close to the first circuit side plate 61 , and a structural reinforcement sheet 65 facing the drive control chip 64 is fixed on the other side of the second circuit side plate 63 to improve the installation stability of the drive control chip 64 .

[0070] More specifically, the outer wall of the base 10 is provided with a chip slot 14 corresponding to the driving control chip 64 , and the driving control chip 64 is embedded in the chip slot 14 to further reduce the size of the lens driving module 100 along the Y-axis direction.

[0071] In some embodiments, the circuit board 60 also includes a circuit backplane 66 fixed to the circuit base plate 62 and located on the negative side of the reflection module 200 along the X-axis. The circuit base plate 62 and the circuit backplane 66 correspond to the reflection module 200 and are used to drive and sense the rotation of the reflection module 200. The first circuit side plate 61 and the second circuit side plate 63 are provided with an electrical lead-out portion 67 along the positive side of the X-axis, and the circuit board 60 is electrically connected to the imaging module 300 through the electrical lead-out portion 67.

[0072] In some embodiments, the first circuit side plate 61 and the second circuit side plate 63 are also electrically connected to the sensing element of the reflection module 200, and the driving control chip 64 is used to control the reflection module 200 and the lens driving module 100, so as to realize the control of anti-shake and focus (zoom). Figure 5 as well as Figure 6As shown, in some embodiments, the lens driving module 100 further includes a sensing element 70 for sensing the position change of the driving magnet 41, and the sensing element 70 is embedded in the base 10 and is located on the side of the driving coil 42 away from the lens carrier 20 along the Z axis. The sensing element 70 can sense the magnetic field change of the driving magnet 41 when the lens carrier 20 moves along the X axis, thereby obtaining the position change information of the driving magnet 41, and then controlling the movement of the lens carrier 20 relative to the base 10.

[0073] Furthermore, the sensing element 70 is located on the side of the driving coil 42 away from the lens carrier 20 along the Z-axis, that is, there is a distance between the sensing element 70 and the driving magnet 41 along the Y-axis direction.

[0074] Please combine Figure 1 as well as Figure 7 As shown, in some embodiments, the lens driving module 100 also includes a buffer assembly 80, the buffer assembly 80 includes a first buffer member 81, the first buffer member 81 is located between the lens carrier 20 and the base 10 along the X-axis direction, and is arranged on at least one of the lens carrier 20 and the base 10, and is used to prevent the lens driving module 100 from being damaged by collision and reduce the collision noise between the two when the lens driving module 100 moves along the X-axis direction relative to the base 10.

[0075] Preferably, a cavity is provided in the first buffer 81 to improve the buffering effect. More preferably, the cross section of the first buffer 81 along the XOZ plane is D-shaped, the arc surface of the D-shaped faces the lens driving module 100, and the first buffer 81 is provided with a cavity extending through the Y-axis direction, and the shape of the cavity is formed in the same shape as the outer contour of the first buffer 81, that is, the cross section of the first buffer 81 along the XOZ plane is also D-shaped.

[0076] In some embodiments, the buffer assembly 80 also includes a second buffer member 82 and a third buffer member 83 spaced apart along the X-axis direction. The second buffer member 82 and the third buffer member 83 are both located between the lens carrier 20 and the base 10 along the Z-axis direction, and are arranged on at least one of the lens carrier 20 and the base 10. On the one hand, the risk of the lens carrier 20 detaching along the Z-axis can be reduced, and on the other hand, the noise generated by the lens carrier 20 detaching along the Z-axis and hitting the base 10 can be reduced.

[0077] In some embodiments, the buffer assembly 80 also includes a fourth buffer member 84, which is located between the reflection module 200 and the lens driving module 100 along the X-axis direction, and is disposed on at least one of the base 10 and the lens carrier 20, and is used to prevent the lens driving module 100 from being damaged by collision and reduce the impact noise between the two when the lens driving module 100 moves relative to the base along the X-axis direction.

[0078] In some embodiments, the buffer assembly 80 also includes a fifth buffer member 85, which is located between the fourth buffer member 84 and the reflection module 200 along the X-axis direction, and is arranged with at least one of the base 10 and the reflection module 200, and is used to prevent the two from being damaged by collision and reduce the impact noise between the two when the reflection module 200 rotates around the Y-axis direction relative to the base.

[0079] Preferably, a cavity is provided in the fourth buffer 84 to improve the buffering effect. More preferably, the cross section of the fourth buffer 84 along the XOZ plane is D-shaped, the arc surface of the D-shaped faces the lens driving module 100, and a cavity is provided in the fourth buffer 84 along the Y-axis direction, and the shape of the cavity is formed in the same shape as the outer contour of the fourth buffer 84, that is, the cross section of the fourth buffer 84 along the XOZ plane is also D-shaped.

[0080] In some implementations, the fourth buffer component 84 and the fifth buffer component 85 are integrally formed.

[0081] In some embodiments, the buffer assembly 80 also includes a fixing frame 86, which is fixed to the top of the base 10 and is U-shaped with the opening facing the positive direction of the X-axis. The first buffer component 81, the second buffer component 82, the third buffer component 83, the fourth buffer component 84 and the fifth buffer component 85 are all fixed to the fixing frame 86.

[0082] In some embodiments, two first buffer members 81 , second buffer members 82 , third buffer members 83 , fourth buffer members 84 and fifth buffer members 85 are symmetrically arranged along the Y-axis direction with the X-axis imaginary line as the center.

[0083] According to a second aspect of the present application, a lens driving module is provided, comprising: a base 10 having an internal space; a lens carrier 20 movably disposed in the internal space for carrying an optical lens 30; a driving assembly 40 configured to drive the lens carrier 20 to move relative to the base 10 along the X-axis direction; two groups of supporting magnetic suction assemblies 50 are disposed on both sides of the lens carrier 20 along the Y-axis direction perpendicular to the X-axis direction, the supporting magnetic suction assemblies 50 include a supporting member 51 and a magnetic suction member 52, the supporting member 51 is disposed between the lens carrier 20 and the base 10 to form a fulcrum on the opposite surfaces of the lens carrier 20 and the base 10, a part of the magnetic suction member 52 is disposed on the lens carrier 20, and another part is disposed relatively to the base 10, and a magnetic suction force is generated between the two parts; a projection of the supporting member 51 of one group of supporting magnetic suction assemblies 50 along the Y-axis direction is located between the two supporting members 51 of the other group of supporting magnetic suction assemblies 50, and a projection of the magnetic suction member 52 of the other group of supporting magnetic suction assemblies 50 along the Y-axis direction is located between the two magnetic suction members 52 of the group of supporting magnetic suction assemblies 50.

[0084] That is to say, the connecting lines of the fulcrums of the three supporting members 51 form a supporting surface triangle, and the connecting lines of the magnetic magnets of the three magnetic members 52 form a magnetic attraction triangle. It should be understood that the characteristics of the triangle make the supporting surface triangle formed by the three fulcrums have higher stability, and the magnetic attraction triangle can also provide stronger magnetic attraction stability.

[0085] Furthermore, the projections of the support surface triangle and the magnetic triangle along the Z-axis direction at least partially overlap, which can ensure that the position of the total magnetic force falls within the support surface triangle and is as far away as possible from the line connecting any two fulcrums, thereby effectively reducing the risk of overturning of the lens carrier 20.

[0086] Please combine Figure 1 as well as Figure 8 As shown, the third aspect of the present application provides a camera module, including: a reflection module 200, which reflects the light propagating along the Z-axis direction to the X-axis direction; the above-mentioned lens driving module 100, the lens driving module 100 is located on the light reflection path of the reflection module 200; the imaging module 300, the imaging module 300 is arranged on the light emitting side of the base 10 and receives the light emitted by the lens driving module 100 for imaging; and a shell 400, the shell 400 is covered on the base 10.

[0087] Specifically, the reflection module 200 can rotate along the X-axis and Y-axis directions to realize the optical image stabilization function; the imaging module 300 includes a chip circuit board and a photosensitive chip electrically connected to the chip circuit board. The photosensitive chip is electrically connected to the mobile electronic device through the chip circuit board. The photosensitive chip receives the light emitted by the optical lens for imaging, thereby acquiring an image.

[0088] More specifically, the imaging module 300 includes a photosensitive component 310 and a filter component 320. The photosensitive component 310 includes a photosensitive circuit board 312, a photosensitive chip 311 mounted on the photosensitive circuit board 312, and electronic components. The photosensitive chip 311 is fixed to the photosensitive circuit board 312 by, for example, bonding, and is electrically connected to the photosensitive circuit board 312 by, for example, wire bonding, so that the photosensitive chip 311 receives light for imaging and is electrically connected to the mobile electronic device through the photosensitive circuit board 312. The filter component 320 includes a filter bracket 322 and a filter element 321 mounted on the filter bracket 322. The filter bracket 322 is fixed to the photosensitive circuit board 312 by, for example, bonding, and the filter element 321 is fixed to the filter bracket 322 by, for example, bonding, so that it is maintained on the light sensing path of the photosensitive chip 311, and the filter element 321 filters the light entering the photosensitive chip 311.

[0089] In some other embodiments, the lens driving module 100, the reflection module 200 and the imaging module 300 may also be disposed on respective independent bases 10 and fixed to each other, thereby forming a periscope camera module with a folded optical path. It should be understood that the mutual fixation between the lens driving module 100, the reflection module 200 and the imaging module 300 may be fixed by bonding with an adhesive medium or by integral molding.

[0090] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0091] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A lens driving module, characterized in that: include: A base (10) having an internal space; A lens carrier (20) movably disposed in the internal space and used to carry the optical lens (30); A driving assembly (40) configured to drive the lens carrier (20) to move relative to the base (10) along an X-axis direction; Two groups of supporting magnetic suction components (50) are arranged on both sides of the lens carrier (20) along a Y-axis direction perpendicular to the X-axis direction, the supporting magnetic suction components (50) comprising a supporting member (51) and a magnetic suction member (52), the supporting member (51) being arranged between the lens carrier (20) and the base (10) so as to form a fulcrum on opposite surfaces of the lens carrier (20) and the base (10), the magnetic suction member (52) having a portion arranged on the lens carrier (20) and another portion arranged opposite to the base (10), and a magnetic suction force being generated between the two portions; The support members (51) and the magnetic members (52) of each group of the support magnetic attraction components (50) are distributed along the X-axis direction, wherein one group of the support magnetic attraction components (50) includes at least two support members (51) and at least one magnetic member (52) located between the two support members (51), and the other group of the support magnetic attraction components (50) includes at least two magnetic members (52) and at least one support member (51) located between the two magnetic members (52).

2. The lens driving module according to claim 1, characterized in that: The two groups of supporting magnetic suction components (50) include a first supporting magnetic suction component and a second supporting magnetic suction component arranged on opposite sides of the lens carrier (20) along the Y-axis direction, wherein the first supporting magnetic suction component includes a first magnetic suction component (521), a first supporting component (511) and a second magnetic suction component (522) distributed along the positive direction of the X-axis, and the second supporting magnetic suction component includes a second supporting component (512), a third magnetic suction component (523) and a third supporting component (513) distributed along the positive direction of the X-axis.

3. The lens driving module according to claim 2, characterized in that: D1<D2, and the sum of the magnetic attraction forces of the first magnetic component (521) and the second magnetic component (522) is less than the magnetic attraction force of the third magnetic component (523), wherein D1 is the distance between the fulcrum of the second support component (512) and the fulcrum of the third support component (513), and D2 is the perpendicular distance from the fulcrum of the first support component (511) to the line connecting the fulcrum of the second support component (512) and the fulcrum of the third support component (513).

4. The lens driving module according to claim 3, characterized in that: The second support member (512) and the third support member (513) are arranged at two ends of the lens carrier (20) along the X-axis direction, and the projection of the first support member (511) along the Y-axis direction is located at the midpoint of the second support member (512) and the third support member (513).

5. The lens driving module according to claim 2, characterized in that: The first magnetic attraction component (521) and the second magnetic attraction component (522) are symmetrically arranged along the X-axis direction with the first support component (511) as the center, and the magnetic attraction forces of the two are equal.

6. The lens driving module according to claim 5, characterized in that: The three magnetic attracting members (52) form an isosceles triangle with the third magnetic attracting member (523) as the vertex; the magnetic attracting member (52) comprises a magnetic magnet and a magnetic yoke, one of the magnetic magnet and the magnetic yoke is arranged on the lens carrier (20), and the other is arranged relatively to the base (10); the base (10) or the lens carrier (20) in which the magnetic attracting magnet is arranged is also provided with three supporting grooves corresponding to the supporting members (51) one by one, wherein the supporting groove corresponding to the first supporting member (511) is a first supporting groove, the centers of the three supporting grooves form an isosceles triangle with the center of the first supporting groove as the vertex, and the third magnetic attracting member (523) is directly opposite to the center of the first supporting groove along the Y-axis direction.

7. The lens driving module according to claim 6, characterized in that: The connection line of the three supporting points of the two groups of supporting magnetic attraction components (50) forms a supporting surface triangle, the connection line of the midpoints of the three magnetic attraction magnets forms a magnetic attraction triangle, and the overlapping area of ​​the supporting surface triangle and the magnetic attraction triangle is greater than or equal to one half of the area of ​​the magnetic attraction triangle.

8. The lens driving module according to claim 1, characterized in that: The support member (51) is a ball bearing, the lens carrier (20) is provided with a plurality of first ball bearing grooves (21) corresponding one-to-one to the ball bearings, the base (10) is provided with a plurality of second ball bearing grooves (11) corresponding one-to-one to the ball bearings, and the ball bearings are movably clamped between the corresponding first ball bearing grooves (21) and the second ball bearing grooves (11).

9. The lens driving module according to claim 1, characterized in that: The magnetic attraction component (52) comprises a magnetic attraction magnet and a magnetic yoke, one of the magnetic attraction magnet and the magnetic yoke is arranged on the lens carrier (20), and the other is arranged relatively to the base (10), and the length difference between the magnetic attraction magnet and the corresponding magnetic yoke along the X-axis direction is greater than or equal to the moving stroke of the lens carrier (20).

10. The lens driving module according to claim 9, characterized in that: The length of the magnetic yoke along the X-axis direction is greater than the corresponding magnetic attraction magnet; the magnetic attraction magnet is arranged on the lens carrier (20), and the magnetic yoke is arranged relative to the base (10).

11. The lens driving module according to claim 1, characterized in that: The driving assembly (40) comprises a driving magnet (41) and a driving coil (42); one of the driving magnet (41) and the driving coil (42) is arranged on the lens carrier (20), and the other is arranged opposite to the base (10).

12. The lens driving module according to claim 11, characterized in that: The outer wall of the base (10) is provided with a circuit board slot (12); the lens driving module (100) further comprises a circuit board (60) profiled and embedded in the circuit board slot (12); the circuit board (60) comprises a first circuit side plate (61) located on one side of the base (10) along the Y-axis direction; the base (10) is provided with a coil through slot (13) along the Z-axis direction; the driving coil (42) is accommodated in the coil through slot (13) and is electrically connected to the first circuit side plate (61); and the driving magnet (41) is embedded in the lens driving module (100) and faces the driving coil (42).

13. The lens driving module according to claim 12, characterized in that: The circuit board (60) comprises a first circuit side plate (61), a circuit bottom plate (62) and a second circuit side plate (63) which are fixed in sequence, the circuit bottom plate (62) being located on a side of the base (10) away from the lens carrier (20) along the Z axis, the first circuit side plate (61) and the second circuit side plate (63) being located on both sides of the base (10) along the Y axis direction, and the second circuit side plate (63) being electrically connected to a drive control chip (64).

14. The lens driving module according to claim 11, characterized in that: The lens driving module (100) further comprises a sensing element (70) for sensing a position change of the driving magnet (41); the sensing element (70) is embedded in the base (10) and is located on a side of the driving coil (42) away from the lens carrier (20) along the Z axis.

15. A camera module, characterized in that: include: A reflection module (200) reflects light propagating along the Z-axis direction to the X-axis direction; The lens driving module (100) according to any one of claims 1 to 10, wherein the lens driving module (100) is located on a light reflection path of the reflection module (200); An imaging module (300), the imaging module (300) being arranged on the light-emitting side of the base (10) and receiving light emitted by the lens driving module (100) for imaging; A shell (400), wherein the shell (400) is covered on the base (10).

16. The camera module according to claim 15, characterized in that: The driving assembly (40) comprises a driving magnet (41) and a driving coil (42); one of the driving magnet (41) and the driving coil (42) is arranged on the lens carrier (20), and the other is arranged opposite to the base (10); The outer wall of the base (10) is provided with a circuit board slot (12); the lens driving module (100) further comprises a circuit board (60) profiled and embedded in the circuit board slot (12); the circuit board (60) comprises a first circuit side plate (61) located on one side of the base (10) along the Y-axis direction; the base (10) is provided with a coil through slot (13) along the Z-axis direction; the driving coil (42) is accommodated in the coil through slot (13) and is electrically connected to the first circuit side plate (61); and the driving magnet (41) is embedded in the lens driving module (100) and faces the driving coil (42); The circuit board (60) comprises a first circuit side plate (61), a circuit bottom plate (62) and a second circuit side plate (63) which are fixed in sequence, the circuit bottom plate (62) being located on a side of the base (10) away from the lens carrier (20) along the Z axis, the first circuit side plate (61) and the second circuit side plate (63) being located on both sides of the base (10) along the Y axis direction, the second circuit side plate (63) being electrically connected to a driving control chip (64), and the first circuit side plate (61) and the second circuit side plate (63) being also electrically connected to a sensing element of the reflection module (200).

Images