Actuators, camera modules and electronics

Abstract

The present disclosure relates to an actuator, a camera module and an electronic device. The actuator includes: a seat, the seat is used to assemble a first lens and a fluid lens; a stator assembly is connected to the seat, the stator assembly includes a first action member; a focus moving subassembly is used to connect with the fluid lens and includes a second action member; an anti-shake subassembly is used to connect with the first lens and includes a third action member; wherein the second action member is arranged on the outside or inside of the first action member around a first direction, and the third action member is arranged toward either end of the first action member in the first direction, the first direction is the optical axis direction of the first lens, through the interaction between the first action member and the second action member, the focus moving subassembly can move in the seat along the first direction to adjust the curvature of the fluid lens; through the interaction between the first action member and the third action member, the anti-shake subassembly can translate in the seat in a plane perpendicular to the first direction to drive the first lens to move.

Description

Technical Field

[0001] The present disclosure relates to the field of terminal technology, and in particular to an actuator, a camera module and an electronic device. Background Art

[0002] With the development of science and technology, users have higher and higher requirements for the shooting function and image quality of terminal devices. In order to improve the image quality of the camera, the camera can usually be equipped with a focus function and an anti-shake function. In a related technology, the liquid lens in the camera can be squeezed by unequal forces, so that the focus can be achieved through the deformation of the liquid lens. At the same time, due to different forces, the deformation degree of each area of ​​the liquid lens is different, so that the transmission path of the incident light can be adjusted, so that anti-shake can be achieved.

[0003] However, in the related art, anti-shake and focusing are achieved simultaneously through the deformation of the liquid lens. In some cases, it is inevitable that the anti-shake effect is not ideal when the focusing effect is good; or the focusing cannot be achieved when the anti-shake effect is good, making it difficult to take into account both the anti-shake effect and the focusing effect of the camera. Summary of the invention

[0004] The present disclosure provides an actuator, a camera module and an electronic device to solve the deficiencies in the related art.

[0005] According to a first aspect of an embodiment of the present disclosure, there is provided an actuator, comprising:

[0006] A seat body, the seat body is used to assemble the first lens and the fluid lens;

[0007] A stator assembly, the stator assembly is connected to the seat body, and the stator assembly includes a first action member;

[0008] A focus moving subassembly, the focus moving subassembly is used to be connected to the fluid lens, and the focus moving subassembly includes a second acting member;

[0009] An anti-shake subassembly, the anti-shake subassembly is used to be connected to the first lens, and the anti-shake subassembly includes a third action member;

[0010] Among them, the second acting member is arranged on the outside or inside of the first acting member around a first direction, and the third acting member is arranged toward either end of the first acting member in the first direction, the first direction is the optical axis direction of the first lens and the fluid lens, and through the interaction between the first acting member and the second acting member, the focus moving subassembly can move along the first direction within the base body to adjust the curvature of the fluid lens; through the interaction between the first acting member and the third acting member, the anti-shake subassembly can translate within the base body in a plane perpendicular to the first direction to drive the first lens to move.

[0011] Optionally, the first acting member includes a stator magnet, the second acting member includes a focus coil, and the third acting member includes an anti-shake coil;

[0012] Alternatively, the first acting member includes a stator coil, the second acting member includes a focusing magnet, and the third acting member includes an anti-shake magnet.

[0013] Optionally, the first acting member includes a stator magnet, a plurality of the stator magnets are arranged at intervals around the first direction, the second acting member includes a focus coil, and the third acting member includes an anti-shake coil, the plurality of anti-shake coils correspond one-to-one to the plurality of stator magnets along the first direction, and the plurality of stator magnets surround the same focus coil;

[0014] The polarity arrangement direction of each stator magnet is perpendicular to the first direction, and the side of each stator magnet with the first polarity is arranged toward the focusing coil, and the central axis directions of the focusing coil and the anti-shake coil are parallel to the first direction.

[0015] Optionally, the number of the stator magnets is an even number and they are arranged opposite to each other in pairs, and the focusing coil is located between the two oppositely arranged stator magnets.

[0016] Optionally, polarity arrangement directions of at least two stator magnets among the plurality of stator magnets are perpendicular to each other.

[0017] Optionally, the focus actuator assembly includes a focus mounting seat, which includes a first surrounding wall and a plurality of bosses extending from the first surrounding wall in a direction away from the bottom of the seat body, the plurality of bosses are used to connect with the fluid lens, the second acting member is connected to the inner wall or the outer wall of the first surrounding wall, and the anti-shake subassembly is partially penetrated through the first surrounding wall.

[0018] Optionally, a plurality of the bosses are evenly arranged around the first direction.

[0019] Optionally, the anti-shake subassembly includes an anti-shake mounting seat, which includes a second surrounding wall and an extension portion extending outward from the second surrounding wall, the second surrounding wall passes through the first surrounding wall and is connected to the first lens, and the third active member is stacked with the extension portion.

[0020] Optionally, the third active member includes a coil circuit board and an anti-shake coil arranged on the coil circuit board, and the coil circuit board is arranged around the second surrounding wall.

[0021] Optionally, it further comprises a plurality of elastic members spaced apart along the first direction, each elastic member comprising an annular body, a first elastic arm extending outward from the annular body, and a second elastic arm bent from the first elastic arm toward the annular body;

[0022] Among them, the annular body is connected to the anti-shake sub-assembly, the end of the first elastic arm away from the annular body is connected to the base body, and the end of the second elastic arm away from the first elastic arm is connected to the focus movable sub-assembly.

[0023] Optionally, a Hall sensor is further included, the first acting member includes a stator magnet, the third acting member includes an anti-shake coil, the Hall sensor is arranged in the anti-shake subassembly, and the Hall sensor is used to sense the magnetic field strength of the stator magnet; or,

[0024] It also includes a Hall sensor, the first acting member includes a stator annular coil, the third acting member includes an anti-shake magnet, the Hall sensor is arranged on the base, and the Hall sensor is used to sense the magnetic field strength of the anti-shake magnet.

[0025] Optionally, the Hall sensor includes a first Hall sensor and a second Hall sensor, and the polarity arrangement direction of the magnet sensed by the first Hall sensor is perpendicular to the polarity arrangement direction of the magnet sensed by the second Hall sensor.

[0026] Optionally, the seat body comprises:

[0027] A cover body, the cover body comprising a containing cavity, the focus moving subassembly, the anti-shake subassembly and the stator assembly are all arranged in the containing cavity, and the cover body is also used to connect the fluid lens;

[0028] A base is connected to the cover body to close one end of the accommodating cavity, and the base includes a clamping portion, and the clamping portion is clamped with the first acting member.

[0029] Optionally, the base body further includes a fixing bracket, the fixing bracket is assembled with the cover body along a first direction, and the fixing bracket is used to be connected with the fluid lens.

[0030] According to a second aspect of an embodiment of the present disclosure, a camera module is provided, including:

[0031] An actuator as described in any one of the above embodiments;

[0032] A fluid lens, wherein the fluid lens is assembled on a seat of the actuator;

[0033] A first lens is connected to an anti-shake subassembly of the actuator.

[0034] Optionally, the fluid lens includes a fixed frame, a diaphragm and a movable plate, the diaphragm is connected to the fixed frame, a liquid is arranged between the fixed frame and the diaphragm, the movable plate is connected to the diaphragm, and the movable plate is connected to the focus movable subassembly.

[0035] According to a third aspect of the embodiments of the present disclosure, there is provided an electronic device, comprising a camera module as described in any one of the above embodiments.

[0036] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0037] It can be seen from the above embodiments that in the technical scheme of the present invention, through the interaction between the focus movable subassembly and the stator assembly, the curvature of the fluid lens can be changed to achieve the purpose of focusing, and through the interaction between the anti-shake subassembly and the stator assembly, the relative position relationship between the first lens and the fluid lens can be changed by adjusting the position of the first lens, thereby achieving the purpose of optical image stabilization. The focus function and anti-shake function of the camera module can be realized independently of each other. Compared with the related technology, the mutual influence between the focusing process and the anti-shake process can be avoided, which is beneficial to improving the image quality. Moreover, the first acting member and the second acting member are nested, and the first acting member and the third acting member are arranged along the first direction, which is beneficial to reducing the radial size of the camera module.

[0038] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0040] Figure 1 The figure is a top view of a camera module according to an exemplary embodiment.

[0041] Figure 2 yes Figure 1 Schematic diagram of the CC cross section of the middle camera module.

[0042] Figure 3 yes Figure 1 Schematic diagram of the camera module in the figure.

[0043] Figure 4 The figure is a schematic diagram showing the relative positions of a stator magnet, an anti-shake coil and a focus coil according to an exemplary embodiment.

[0044] Figure 5 is a schematic structural diagram of a fluid lens according to an exemplary embodiment. DETAILED DESCRIPTION

[0045] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0046] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0047] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0048] Figure 1 is a top view of a camera module 100 according to an exemplary embodiment. Figure 2 yes Figure 1 A CC cross-sectional diagram of the camera module 100, Figure 3 yes Figure 1 FIG. 1 is a schematic diagram of an exploded view of the camera module 100. Figure 1-Figure 3As shown, the camera module 100 may include an actuator 1, a fluid lens 3 and a first lens 2. The first lens 2 is a conventional solid lens different from the fluid lens 3. For example, the first lens 2 may include a fixed focus lens. The fluid in the fluid lens 3 may include but is not limited to liquid metal, gel, liquid, gas and other fluids. When the fluid in the liquid lens is liquid, the fluid lens 3 is a liquid lens. The actuator 1 may include a seat 11. The first lens 2 and the fluid lens 3 may be assembled on the seat 11. For example, Figure 2 As shown, the first lens 2 and the fluid lens 3 can be arranged along the first direction of the base 11, that is, the first lens 2 and the fluid lens 3 can be assembled on the base 11 along the direction shown by the arrow A in the figure, and the first direction can correspond to the optical axis direction of the camera module 100.

[0049] It is understandable that in order to improve the imaging effect of the camera module 100, the actuator 1 can be used to achieve automatic focus and optical image stabilization to achieve clear imaging. Based on this requirement, in the technical solution of the present disclosure, the actuator 1 can also include a stator assembly 12, a focus movable assembly 13 and an anti-shake subassembly 14, wherein the stator assembly 12 can be assembled in the base 11 and fixedly connected to the base 11, and the focus movable assembly 13 and the anti-shake subassembly 14 are also arranged in the base 11. Different from the stator assembly 12, the focus movable assembly 13 and the anti-shake subassembly 14 can move relative to the base 11 to achieve the purpose of automatic focus and optical image stabilization.

[0050] For example, Figure 4 As shown, the stator assembly 12 may include a first acting member, the focus moving subassembly 13 may include a second acting member, and the anti-shake subassembly 14 may include a third acting member, and the second acting member may be arranged on the inner side of the first acting member around the first direction, and the third acting member faces either end of the first acting member in the first direction, and the first acting member interacts with the second acting member to push the focus moving subassembly 13 to move along the first direction of the seat body 11, thereby squeezing the fluid lens 3, and the fluid in the fluid lens 3 flows, so as to achieve the purpose of adjusting the curvature of the fluid lens 3, and then achieve focusing; the third acting member interacts with the first acting member to push the anti-shake subassembly 14 to translate in a plane perpendicular to the first direction in the seat body 11, so as to drive the first lens 2 to move, and achieve anti-shake of the camera module 100. Of course, in other embodiments, the second acting member may also be arranged on the outer side of the first acting member around the first direction, and the present disclosure does not limit this.

[0051] It can be seen from the above embodiments that in the technical solution of the present invention, through the interaction between the focus movable subassembly 13 and the stator assembly 12, the curvature of the fluid lens 3 can be changed to achieve the purpose of focusing, and through the interaction between the anti-shake subassembly 14 and the stator assembly 12, the relative position relationship between the first lens 2 and the fluid lens 3 can be changed by adjusting the position of the first lens 2, thereby achieving the purpose of optical image stabilization. The focusing function and the anti-shake function of the camera module 100 can be realized independently of each other. Compared with the related technology, the mutual influence between the focusing process and the anti-shake process can be avoided, which is beneficial to improving the image quality. Moreover, the first acting member and the second acting member are nested, and the first acting member and the third acting member are arranged along the first direction, which is beneficial to reducing the radial size of the camera module 100.

[0052] The first action member, the second action member and the third action member may include a variety of structures, which will be exemplarily described below:

[0053] In some embodiments, the first acting member may include a stator magnet, and the second acting member of the focus movable assembly 13 may include a focus coil 131. The focus coil 131 and the fluid lens 3 are arranged along a first direction. After receiving a focus instruction, the camera module 100 can energize the focus coil 131. The focus coil 131 can interact with the stator magnet of the stator assembly 12 to generate a force along the first direction. Through this force, the focus movable assembly 13 is pushed toward the fluid lens 3 and squeezes the fluid lens 3, causing the fluid lens 3 to deform and change the curvature of the fluid lens 3, thereby achieving the purpose of focusing. The third active part of the anti-shake subassembly 14 may include an anti-shake coil 141, which is also assembled with the first lens 2. When the camera module 100 receives an anti-shake command, the anti-shake coil 141 can be energized, and the anti-shake coil 141 interacts with the stator magnet of the stator assembly 12 to generate a force perpendicular to the first direction. This force can push the anti-shake subassembly 14 to translate relative to the base 11 in a plane perpendicular to the first direction, and adjust the relative position relationship between the first lens 2 and the fluid lens 3 to compensate for image blur caused by user shaking during shooting, thereby achieving the purpose of optical image stabilization.

[0054] In other possible embodiments, the first acting part of the stator assembly 12 may also include a stator coil, the second acting part of the focus movable subassembly 13 may include a focus magnet, and the third acting part of the anti-shake subassembly 14 may include an anti-shake magnet. By reasonably setting the direction of the magnetic flux lines of the focus magnet, the direction of the magnetic flux lines of the anti-shake magnet and the direction of the current in the stator coil, the focus movable subassembly 13 can be pushed to move in the first direction when the stator coil interacts with the focus magnet, and the anti-shake subassembly 14 can be pushed to translate in a plane perpendicular to the first direction through the interaction between the stator coil and the anti-shake magnet.

[0055] In the case where the first acting part includes a stator magnet, the second acting part includes a focusing coil 131, and the third acting part includes an anti-shake coil 141, the stator assembly 12 may include a plurality of stator magnets, and the plurality of stator magnets may be fixedly arranged around a first direction. For example, in the embodiment provided in the present disclosure, each stator magnet may be connected to the inner wall of the base body 11. In other embodiments, the stator assembly 12 may also include a stator bracket, and a plurality of stator magnets may be connected to the stator bracket around the first direction. The stator bracket is fixedly connected to the base body 11 to achieve relative fixation of the stator magnets.

[0056] Taking the embodiments provided in the present disclosure as an example, Figure 4 As shown, the stator assembly 12 may include a plurality of stator magnets, and the anti-shake subassembly 14 may include a plurality of anti-shake coils 141. The plurality of anti-shake coils 141 and the plurality of stator magnets may be arranged one by one along the first direction. The polarity arrangement directions of the plurality of stator magnets are respectively perpendicular to the first direction, and the axial direction of the anti-shake coil 141 is parallel to the first direction. Based on this, when the anti-shake coil 141 is energized, it interacts with the stator magnet, and can drive the anti-shake subassembly 14 to reciprocate in a plane perpendicular to the first direction. The anti-shake function of the camera module 100 can be realized by the reciprocating translation of the anti-shake subassembly 14 in a plane perpendicular to the first direction.

[0057] It can be understood that the anti-shake subassembly 14 may need to move to different positions in a plane to achieve anti-shake, and the position of the anti-shake subassembly 14 in a plane can be represented by displacements in two directions perpendicular to each other in the plane. Therefore, in order to drive the anti-shake subassembly 14 to generate displacements in two directions perpendicular to each other in the plane, the polarity arrangement directions of at least two stator magnets among the multiple stator magnets can be set to be vertical, and the at least two stator magnets can interact with the corresponding anti-shake coil 141. For example, in the embodiment provided by the present disclosure, the multiple stator magnets may include a first stator magnet 121, a second stator magnet 122, a third stator magnet 123 and a fourth stator magnet 124, wherein the polarity arrangement direction of the first stator magnet 121 is perpendicular to the polarity arrangement directions of the second stator magnet 122 and the fourth stator magnet 124, and the polarity arrangement direction of the second stator magnet 122 is perpendicular to the polarity arrangement directions of the first stator magnet 121 and the third stator magnet 123. Based on this, the anti-shake subassembly 14 can be subjected to two forces located in the same plane and perpendicular to each other, so that the anti-shake subassembly 14 can be driven to move to various positions in the plane. The direction of the force can be changed by changing the direction of the current in the anti-shake coil 141, thereby realizing the forward and backward movement of the anti-shake subassembly 14. By changing the current size of the anti-shake coil 141, the size of the force on the anti-shake subassembly 14 can be adjusted, thereby realizing fine-tuning.

[0058] Of course, in the present disclosure, only the actuator 1 including four stator magnets, namely the first stator magnet 121, the second stator magnet 122, the third stator magnet 123 and the fourth stator magnet 124, is taken as an example for explanation. In other embodiments, the actuator 1 may also include other numbers of stator magnets, and the polarity arrangement directions of at least two of the multiple stator magnets are perpendicular to each other, and the two stator magnets with perpendicular polarity arrangement directions are respectively arranged at either end in the first direction toward any anti-shake coil 141, and the present disclosure does not limit this.

[0059] The focus moving subassembly 13 may include a focus coil 131, and the plurality of stator magnets are arranged around the same focus coil 131 in a first direction. When the focus coil 131 is energized, the interaction with the stator magnets may drive the focus moving subassembly 13 to reciprocate along the first direction, thereby realizing the focus function of the camera module 100. Moreover, in order for the focus moving subassembly 13 to move smoothly along the first direction, the number of stator magnets included in the stator assembly 12 may be an even number, and they are arranged opposite to each other in pairs, and the focus coil 131 may be located between two opposite stator magnets. For example, in an embodiment provided in the present disclosure, a plurality of stator magnets may include a first stator magnet 121, a second stator magnet 122, a third stator magnet 123 and a fourth stator magnet 124, wherein the first stator magnet 121 and the third stator magnet 123 are arranged opposite to each other, the second stator magnet 122 and the fourth stator magnet 124 are arranged opposite to each other, the focusing coil 131 is located between the first stator magnet 121 and the third stator magnet 123, and is also located between the second stator magnet 122 and the fourth stator magnet 124, and the first stator magnet 121, the second stator magnet 122, the third stator magnet 123 and the fourth stator magnet 124 are arranged around the same focusing coil 131. Thus, when the focus coil 131 is powered, the stator magnets and the focus coil 131, which are arranged opposite to each other, can generate forces in the same direction, which is conducive to the smooth movement of the focus moving subassembly 13 along the first direction, and avoids the focus moving subassembly 13 from tilting and affecting the shooting effect. By changing the direction of the current in the focus coil 131, the direction of the force can be changed, thereby achieving the focus moving subassembly 13 in the first direction. Figure 2 By changing the current of the anti-shake coil 141 during upward or downward movement, the force acting on the focus actuator assembly 13 can be adjusted, thereby achieving fine-tuning.

[0060] Of course, in the present disclosure, only the actuator 1 including four stator magnets, namely the first stator magnet 121, the second stator magnet 122, the third stator magnet 123 and the fourth stator magnet 124, is taken as an example for explanation. In other embodiments, the actuator 1 may also include other numbers of stator magnets, and the number of stator magnets is an even number, which are arranged opposite to each other in pairs, so that the two oppositely arranged stator magnets and the focusing coil 131 can act separately to generate forces in the same direction, which is conducive to the smooth movement of the focusing actuator assembly 13.

[0061] The implementation of the focusing function of the camera module 100 is described in detail below:

[0062] The focus actuator assembly 13 may include a focus mounting seat 132, and the focus mounting seat 132 may include a first surrounding wall 1321, and the first surrounding wall 1321 may be arranged around a portion of the anti-shake actuator, and the focus coil 131 may be arranged around the outside of the first surrounding wall 1321. The first stator magnet 121, the second stator magnet 122, the third stator magnet 123, and the fourth stator magnet 124 are all arranged on the side of the focus coil 131 away from the first surrounding wall 1321, that is, the annular structure formed by the plurality of stator magnets and the focus coil 131 may be nested in a direction perpendicular to the first direction. Based on this, the first stator magnet 121 interacts with the part of the focusing coil 131 close to the first stator magnet 121 to generate a component force along the first direction; the second stator magnet 122 interacts with the part of the focusing coil 131 close to the first stator magnet 121 to generate a component force along the first direction; the third stator magnet 123 interacts with the part of the focusing coil 131 close to the first stator magnet 121 to generate a component force along the first direction; the fourth stator magnet 124 interacts with the part of the focusing coil 131 close to the first stator magnet 121 to generate a component force along the first direction, thereby driving the focus mount 132 to move in the first direction. Since the focus mount 132 is connected to the fluid lens 3, when the focus mount 132 moves in the first direction, it will act on the fluid in the fluid lens 3, causing deformation, thereby achieving the purpose of adjusting the curvature of the fluid lens 3 and realizing focusing.

[0063] In this embodiment, in order to achieve the connection between the focus mounting seat 132 and the fluid lens 3, the focus mounting seat 132 may also include a plurality of bosses 1322 extending from the first surrounding wall 1321 in a direction away from the bottom of the seat body 11, and the plurality of bosses 1322 may be used to connect with the fluid lens 3 to achieve a fixed connection between the fluid lens 3 and the focus mounting seat 132. The plurality of bosses 1322 may be evenly arranged around the first direction, and through the joint action of the plurality of evenly arranged bosses 1322, the uniformity of the force on the fluid lens 3 may be improved, and the installation deformation of the fluid lens 3 itself may be avoided. Specifically, as Figure 5 As shown, the fluid lens 3 may include a fixed frame 31, a diaphragm 32 and a movable piece 33, wherein the diaphragm 32 is connected to the fixed frame 31, and liquid or gas may be arranged between the diaphragm 32 and the fixed frame 31, and the movable piece 33 is connected to the diaphragm 32, and the movable piece 33 is also connected to the boss 1322 of the focus mounting seat 132, so that when the focus mounting seat 132 moves toward or away from the fluid lens 3 along the first direction, the boss 1322 may push or pull the movement of the movable piece 33, causing gaseous flow between the fixed frame 31 and the diaphragm 32, causing deformation, and thus adjusting the curvature of the fluid lens 3.

[0064] The implementation of the anti-shake function of the camera module 100 is described in detail below:

[0065] The anti-shake subassembly 14 may include an anti-shake mounting seat 142, which is movably arranged in the seat body 11, and the anti-shake mounting seat 142 may be used to connect with the first lens 2; the anti-shake mounting seat 142 may include a second surrounding wall 1421 and an extension portion 1422 extending outward from the second surrounding wall 1421, the second surrounding wall 1421 may pass through the first surrounding wall 1321 and be connected and fixed to the first lens 2, and the third action member may be stacked with the extension portion 1422. For example, the third action member may include an anti-shake coil 141, and the plurality of anti-shake coils 141 may be stacked at one end of the extension portion 1422 facing the stator magnet; for another example, the third action member may include a coil circuit board 143 and a plurality of anti-shake coils 141 arranged on the coil circuit board 143, and the coil circuit board 143 may be arranged around the second surrounding wall 1421 and stacked on the surface of the extension portion 1422 facing the stator magnet. For example, the stator assembly 12 may include a first stator magnet 121, a second stator magnet 122, a third stator magnet 123 and a fourth stator magnet 124. The first stator magnet 121, the second stator magnet 122, the third stator magnet 123 and the fourth stator magnet 124 may be arranged at intervals around the first direction on the periphery of the second surrounding wall 1421. Four anti-shake coils 141 may be arranged on the coil circuit board 143. The four anti-shake coils 141 may be arranged one-to-one corresponding to the first stator magnet 121, the second stator magnet 122, the third stator magnet 123 and the fourth stator magnet 124.

[0066] In the above embodiments, since the focus movable subassembly 13 needs to move along the first direction and the anti-shake subassembly 14 needs to move in a plane perpendicular to the first direction, in order to avoid the focus movable subassembly 13 and the anti-shake subassembly 14 from moving in other directions. The actuator 1 may also include a first elastic member 15 and a second elastic member 16. The structures of the first elastic member 15 and the second elastic member 16 may be the same. Taking the first elastic member 15 as an example, the first elastic member 15 may include an annular body 151, a first elastic arm 152 and a second elastic arm 153. The surrounding body may be connected to the periphery of the anti-shake actuator, specifically to the second surrounding wall 1421. The first elastic arm 152 extends outward from the surrounding body, one end of the second elastic arm 153 is connected to the first elastic arm 152, and the other end is bent from the first elastic arm 152 toward the annular body 151. The end of the first elastic arm 152 away from the annular body 151 may be fixedly connected to the seat body 11, and the end of the second elastic arm 153 away from the first elastic arm 152 may be connected to the focus actuator, specifically to the first surrounding wall 1321.

[0067] Based on this, through the joint action of the first elastic member 15 and the second elastic member 16, when the focus actuator is subjected to a force in the first direction, due to the connection between the fluid lens 3 and the focus actuator assembly 13, the second elastic arm 153 of the first elastic member 15 and the second elastic arm 153 of the second elastic member 16 are connected to the focus actuator assembly 13, so that the focus actuator assembly 13 is suspended in the base body 11, and the forces in other directions can be absorbed by the first elastic arm 152, so that the focus actuator assembly 13 can reciprocate along the first direction; similarly, the joint action of the first elastic member 15 and the second elastic member 16 makes the anti-shake actuator be suspended in the base body 11 by the annular body 151 and the first elastic arm 152 of the first elastic member 15, and the annular body 151 and the second elastic arm 153 of the second elastic member 16, and when the anti-shake subassembly 14 is subjected to a force perpendicular to the first direction, the anti-shake subassembly 14 can be translated in a plane perpendicular to the first direction.

[0068] In order to achieve closed-loop control of the anti-shake function, in the embodiment provided in the present disclosure, the actuator 1 may also include a Hall sensor (not shown). When the first acting member includes a stator magnet and the third acting member may include an anti-shake coil 141, the Hall sensor may be connected to the anti-shake sub-assembly 14, so that when the anti-shake sub-assembly 14 moves in a plane perpendicular to the first direction, the Hall sensor may move with the anti-shake sub-assembly 14, and the magnetic field strength generated by the stator magnet sensed by the Hall sensor may change accordingly. Subsequently, the position and displacement of the anti-shake sub-assembly 14 may be calculated based on the change in the magnetic field strength of the stator magnet detected by the Hall sensor, thereby determining whether the shake compensation has been completed. For example, in the embodiment provided in the present disclosure, the stator assembly 12 includes a first stator magnet 121, a second stator magnet 122, a third stator magnet 123 and a fourth stator magnet 124, and the polarity arrangement direction of the first stator magnet 121 is perpendicular to the polarity arrangement direction of the second stator magnet 122 and the fourth stator magnet 124, and the polarity arrangement direction of the second stator magnet 122 is perpendicular to the polarity arrangement direction of the first stator magnet 121 and the third stator magnet 123. The Hall sensor may include a first Hall sensor and a second Hall sensor. The first Hall sensor can be used to sense the magnetic field strength of the first stator magnet 121, and the second Hall sensor can be used to sense the magnetic field strength of the second stator magnet 122. The first Hall sensor and the second Hall sensor can detect the displacement of the anti-shake subassembly 14 in an orthogonal direction perpendicular to the first direction plane to obtain the coordinate position of the anti-shake subassembly 14. Of course, here only the stator assembly 12 including the first stator magnet 121, the second stator magnet 122, the third stator magnet 123 and the fourth stator magnet 124 is used as an example for explanation. In other embodiments, the stator assembly 12 may also include other numbers of stator magnets, and the polarity arrangement direction of the magnets sensed by the first Hall sensor is perpendicular to the polarity arrangement direction of the magnets sensed by the second Hall sensor. In this way, the displacement of the anti-shake subassembly 14 can be detected in an orthogonal direction perpendicular to the first direction plane to obtain the coordinate position of the anti-shake subassembly 14.

[0069] In some other cases, the first acting member may include a stator annular coil, and the third acting member may include an anti-shake magnet. In this case, the anti-shake magnet may move with the anti-shake subassembly 14 in a plane perpendicular to the first direction, so the Hall sensor may be fixedly connected to the base 11. When the anti-shake subassembly 14 moves, the magnetic field strength generated by the anti-shake magnet sensed by the Hall sensor will change accordingly. In this way, the position and displacement of the anti-shake subassembly 14 may be calculated based on the change in the magnetic field strength of the anti-shake magnet detected by the Hall sensor, and then it is determined whether the shake compensation has been completed. Similarly, in order to realize the displacement detection in the orthogonal direction in the plane perpendicular to the first direction, the Hall sensor may include a first Hall sensor and a second Hall sensor. The polarity arrangement direction of the anti-shake magnet sensed by the first Hall sensor is perpendicular to the polarity arrangement direction of the anti-shake magnet sensed by the second Hall sensor. In this way, the displacement of the anti-shake subassembly 14 can be detected in the orthogonal direction in the plane perpendicular to the first direction to obtain the coordinate position of the anti-shake subassembly 14.

[0070] In the above-mentioned embodiments, the seat 11 may include a cover 111 and a base 112 assembled with the cover 111, the cover 111 may include a housing cavity 1111, the stator assembly 12, the focus moving subassembly 13 and the anti-shake subassembly 14 are all arranged in the housing cavity 1111, and the cover 111 can also be used to connect with the fluid lens 3, the base 112 can be assembled with the cover 111, so as to seal one end of the housing cavity 1111, and the base 112 can also be connected with the stator assembly 12 to achieve the fixation of the stator assembly 12. For example, the base 112 may include a clamping portion 1121, and the stator magnet can be clamped with the clamping portion 1121 to achieve fixation. Of course, in other embodiments, the stator assembly 12 may also include a stator bracket, the stator bracket is fixedly connected to the base 112, and the stator magnet is fixedly connected to the stator bracket, so as to achieve the fixation of the stator magnet, which can be specifically designed as needed and the present disclosure is not limited to this.

[0071] For example, the fluid lens 3 can be connected to the base 11, and the base 11 can also include a fixing bracket 113, the fixing bracket 113 can be assembled with the cover 111 along the first direction, the internal space of the fixing bracket 113 can be communicated with the accommodating cavity 1111 of the cover 111, and the fluid lens 3 can be connected to the fixing bracket 113. Based on this, the internal space of the base 11 can be increased by the fixing bracket 113, and the arrangement of various components is more convenient. At the same time, the fluid lens 3 is arranged on the fixing bracket 113, which can be relatively far away from the first lens 2, which is conducive to imaging.

[0072] Based on the technical solution of the present disclosure, the present disclosure also provides an electronic device, which may include one or more camera modules 100 described in the above embodiments. Image information can be obtained through the camera module 100, and because the focus function and the anti-shake function can be implemented independently, the interference between the two functions can be reduced.

[0073] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the disclosure disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0074] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An actuator, characterized in that: include: A seat body, the seat body is used to assemble the first lens and the fluid lens; A stator assembly, the stator assembly is connected to the seat body, and the stator assembly includes a first action member; A focus moving subassembly, the focus moving subassembly is used to be connected to the fluid lens, and the focus moving subassembly includes a second acting member; An anti-shake subassembly, the anti-shake subassembly is used to be connected to the first lens, and the anti-shake subassembly includes a third action member; Wherein, the second acting member is arranged on the outside or inside of the first acting member around a first direction, and the third acting member is arranged toward any end of the first acting member in the first direction, the first direction is the optical axis direction of the first lens and the fluid lens, and through the interaction between the first acting member and the second acting member, the focus moving subassembly can move along the first direction in the base body to adjust the curvature of the fluid lens; through the interaction between the first acting member and the third acting member, the anti-shake subassembly can translate in the base body in a plane perpendicular to the first direction to drive the first lens to move; The first acting member includes a stator magnet, the second acting member includes a focus coil, and the third acting member includes an anti-shake coil.

2. The actuator according to claim 1, characterized in that The plurality of stator magnets are arranged at intervals around the first direction, the plurality of anti-shake coils correspond to the plurality of stator magnets one by one along the first direction, and the plurality of stator magnets surround the same focusing coil; The polarity arrangement direction of each stator magnet is perpendicular to the first direction, and the side of each stator magnet with the first polarity is arranged toward the focusing coil, and the central axis directions of the focusing coil and the anti-shake coil are parallel to the first direction.

3. The actuator according to claim 2, characterized in that The number of the stator magnets is an even number and they are arranged opposite to each other in pairs, and the focusing coil is located between the two oppositely arranged stator magnets.

4. The actuator according to claim 2, characterized in that: The polarity arrangement directions of at least two stator magnets among the plurality of stator magnets are perpendicular to each other.

5. The actuator according to claim 1, characterized in that: The focus actuator assembly includes a focus mounting seat, which includes a first surrounding wall and a plurality of bosses extending from the first surrounding wall in a direction away from the bottom of the seat body, the plurality of bosses are used to connect with the fluid lens, the second acting member is connected to the inner wall or the outer wall of the first surrounding wall, and the anti-shake subassembly is partially penetrated through the first surrounding wall.

6. The actuator according to claim 5, characterized in that The plurality of bosses are evenly arranged around the first direction.

7. The actuator according to claim 5, characterized in that The anti-shake subassembly includes an anti-shake mounting seat, which includes a second surrounding wall and an extension portion extending outward from the second surrounding wall, the second surrounding wall passes through the first surrounding wall and is connected to the first lens, and the third action member is stacked with the extension portion.

8. The actuator according to claim 7, characterized in that The third acting member includes a coil circuit board and an anti-shake coil arranged on the coil circuit board, and the coil circuit board is arranged around the second surrounding wall.

9. The actuator according to claim 1, characterized in that It also includes a plurality of elastic members spaced apart along the first direction, each elastic member including an annular body, a first elastic arm extending outward from the annular body, and a second elastic arm bent from the first elastic arm toward the annular body; Among them, the annular body is connected to the anti-shake sub-assembly, the end of the first elastic arm away from the annular body is connected to the base body, and the end of the second elastic arm away from the first elastic arm is connected to the focus movable sub-assembly.

10. The actuator according to claim 1, characterized in that It also includes a Hall sensor, the first acting member includes a stator magnet, the third acting member includes an anti-shake coil, the Hall sensor is arranged in the anti-shake subassembly, and the Hall sensor is used to sense the magnetic field strength of the stator magnet; or, It also includes a Hall sensor, the first acting member includes a stator annular coil, the third acting member includes an anti-shake magnet, the Hall sensor is arranged on the base, and the Hall sensor is used to sense the magnetic field strength of the anti-shake magnet.

11. The actuator according to claim 10, characterized in that The Hall sensor includes a first Hall sensor and a second Hall sensor, and the polarity arrangement direction of the magnet sensed by the first Hall sensor is perpendicular to the polarity arrangement direction of the magnet sensed by the second Hall sensor.

12. The actuator according to claim 1, characterized in that The seat body comprises: A cover body, the cover body comprising a containing cavity, the focus moving subassembly, the anti-shake subassembly and the stator assembly are all arranged in the containing cavity, and the cover body is also used to connect the fluid lens; A base is connected to the cover body to close one end of the accommodating cavity, and the base includes a clamping portion, and the clamping portion is clamped with the first acting member.

13. The actuator according to claim 12, characterized in that The seat body further comprises a fixing bracket, the fixing bracket is assembled with the cover body along a first direction, and the fixing bracket is used to be connected with the fluid lens.

14. A camera module, characterized in that: include: An actuator as claimed in any one of claims 1 to 13; A fluid lens, wherein the fluid lens is assembled on a seat of the actuator; A first lens is connected to an anti-shake subassembly of the actuator.

15. The camera module according to claim 14, characterized in that: The fluid lens comprises a fixed frame, a diaphragm and a moving piece, the diaphragm is connected to the fixed frame, a liquid is arranged between the fixed frame and the diaphragm, the moving piece is connected to the diaphragm, and the moving piece is connected to the focus moving subassembly.

16. An electronic device, characterized in that: Comprising the camera module as described in claim 14 or 15.

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