Actuator, camera module and electronic device

Abstract

The application provides an actuator, a camera module and an electronic device, and belongs to the technical field of electronics. The actuator comprises a base piece, a first support piece and at least two driving assemblies. The first support piece is movably arranged above the base piece, and the first support piece can move relative to the base piece in a first direction and a second direction respectively. The driving assemblies are used for driving the first support piece to move in the first direction and the second direction respectively. Each driving assembly comprises a main driving module, and at least one driving assembly further comprises a compensation driving module. The driving direction of the main driving module in the same driving assembly is one of the first direction and the second direction, and the driving direction of the compensation driving module is the other one of the first direction and the second direction. The actuator of the application avoids the problem of insufficient driving force caused by the reduction in the number of magnets.

Description

Technical Field

[0001] This application relates to the field of electronic technology, and in particular to an actuator, a camera module, and an electronic device. Background Technology

[0002] With the advancement of technology, modern mobile phone cameras contain actuators (or motors) that drive the lens to achieve fast and stable focusing and optical image stabilization.

[0003] The actuators in related technologies are four-sided magnets. The magnetic fields generated between the magnets can interfere with each other, and in multi-camera scenarios, magnetic field interference also exists between adjacent cameras. To address this issue, optimization is usually achieved by reducing the number of magnets, but this can lead to insufficient driving force in some directions, affecting the actuator's performance. Summary of the Invention

[0004] This application provides an actuator, a camera module, and an electronic device that can solve the problem of insufficient driving force in some directions of the actuator due to the reduction in the number of magnets.

[0005] The technical solution is as follows:

[0006] On the one hand, an actuator is provided, the actuator comprising: a base member, a first support member, and at least two drive components;

[0007] The first support member is movably disposed above the base member. The first support member can move relative to the base member along a first direction and a second direction respectively. The first direction and the second direction form a preset angle α, where 0 < α < 180°.

[0008] The at least two drive components are respectively used to drive the first support member to move along the first direction and the second direction;

[0009] Each of the driving components includes a main driving module, and at least one of the driving components also includes a compensation driving module;

[0010] In the same driving component, the driving direction of the main driving module is one of the first direction and the second direction, and the driving direction of the compensation driving module is the other of the first direction and the second direction.

[0011] In some embodiments, the main drive module includes a main magnet and a main control coil that are magnetically coupled. The main magnet is located on one of the base and the first support, and the main control coil is located on the other of the base and the first support.

[0012] The compensation drive module includes a compensation magnet coupled to the magnetic field and a compensation control coil. The compensation magnet is located on one of the base and the first support, and the compensation control coil is located on the other of the base and the first support.

[0013] The magnetic poles of the main magnet are arranged along one of the first direction and the second direction, and the magnetic poles of the compensation magnet are arranged along the other of the first direction and the second direction.

[0014] In some embodiments, the driving component includes a first driving component, a second driving component, and a third driving component;

[0015] At least one of the second drive assembly and the third drive assembly includes the compensation magnet and the compensation control coil;

[0016] The first drive component is used to drive the first support member to move along the first direction, and the second drive component and the third drive component are used to drive the first support member to move along the second direction.

[0017] In some embodiments, the main magnet and the main control coil of the first drive assembly are respectively located on one side of the base or the first support along the first direction;

[0018] The main magnet and the main control coil of the second drive assembly are respectively located on one side of the base or the first support along the second direction; the main magnet and the main control coil of the third drive assembly are respectively located on the other side of the base or the first support along the second direction.

[0019] In some embodiments, the first drive component includes a first main magnet, the magnetic poles of which are arranged along the first direction;

[0020] The second drive assembly includes a second main magnet and a first compensating magnet. The magnetic poles of the second main magnet are arranged along the second direction, and the magnetic poles of the first compensating magnet are arranged along the first direction.

[0021] The third driving component includes a third main magnet and a second compensating magnet. The magnetic poles of the third main magnet are arranged along the second direction, and the magnetic poles of the second compensating magnet are arranged along the first direction.

[0022] In some embodiments, the second main magnet and the first compensating magnet are arranged at intervals along the first direction;

[0023] And / or,

[0024] The third main magnet and the second compensating magnet are arranged at intervals along the first direction.

[0025] In some embodiments, the first compensating magnet is located on the side of the second main magnet closer to the first main magnet;

[0026] And / or,

[0027] The second compensating magnet is located on the side of the third main magnet closer to the first main magnet.

[0028] In some embodiments, the first driving component further includes a first main control coil, the second driving component further includes a second main control coil and a first compensation control coil, and the third driving component further includes a third main control coil and a second compensation control coil;

[0029] The first main magnet is located on one side of the first support member along the first direction, and the first main control coil is located on one side of the base member along the first direction.

[0030] The second main magnet and the first compensating magnet are located on one side of the first support member along the second direction, and the second main control coil and the first compensating control coil are located on one side of the base member along the second direction.

[0031] The third main magnet and the second compensation magnet are located on the other side of the first support member along the second direction, and the third main control coil and the second compensation control coil are located on the other side of the base member along the second direction.

[0032] In some embodiments, the orthographic projections of the first compensation control coil along the second direction and the orthographic projections of the second compensation control coil along the second direction are at least partially staggered.

[0033] or,

[0034] The orthographic projections of the first compensating magnet along the second direction and the orthographic projections of the second compensating magnet along the second direction are arranged at least partially staggered.

[0035] In some embodiments, the actuator further includes a second support member located inside the first support member. The second support member is provided with a support coil, which is capable of coupling with at least one of the magnetic fields of the main magnet, the main control coil, the compensating magnet, and the compensating control coil to drive the second support member to move relative to the first support member along a third direction, which is perpendicular to the plane containing the first direction and the second direction.

[0036] In some embodiments, the actuator further includes at least one first elastic element connected between the first support member and the base member, the at least one first elastic element being used to movably support the first support member above the base member;

[0037] And / or,

[0038] The actuator further includes at least one second elastic element, which is connected between the second support member and the first support member, and the at least one second elastic element is used to movably support the second support member on the inner side of the first support member.

[0039] On the other hand, a camera module is provided, the camera module comprising:

[0040] Optical lens;

[0041] A photosensitive assembly, comprising a circuit board and a photosensitive element, wherein the photosensitive element is electrically connected to the circuit board, and the optical lens is located on the photosensitive path of the photosensitive element;

[0042] And the actuator described in this application, wherein the optical lens is connected to the first support member, and the photosensitive component is connected to the base member.

[0043] On the other hand, an electronic device is provided, which includes the actuator or the camera module described in this application.

[0044] The beneficial effects of the technical solution provided in this application include at least the following:

[0045] The actuator of this application has a first support member that can move relative to the base member along a first direction and a second direction under the drive of the drive assembly. This can be used to achieve optical image stabilization of the camera module. The drive assembly drives the first support member to move relative to the base member by means of a main drive module. At least one drive assembly is further provided with a compensation drive module, which can provide power compensation to the drive assembly in another direction. Thus, when the driving force in that direction is insufficient due to the reduction in the number of magnets, the compensation drive module arranged in another drive assembly can be used to provide power compensation, thereby avoiding the problem of insufficient driving force caused by the reduction in the number of magnets. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the actuator provided in an embodiment of this application;

[0048] Figure 2 This is an exploded view of the actuator structure provided in the embodiments of this application;

[0049] Figure 3 This is a schematic diagram showing the location of the driving component provided in an embodiment of this application;

[0050] Figure 4 This is a schematic diagram of the actuator provided in another embodiment of this application;

[0051] Figure 5 This is an exploded view of the actuator provided in another embodiment of this application.

[0052] The reference numerals in the figure are respectively:

[0053] 1. Base component;

[0054] 2. First support component;

[0055] 3. Drive components; 301. Main magnet; 302. Main control coil; 303. Compensating magnet; 304. Compensating control coil;

[0056] 31. First drive assembly; 311. First main magnet; 312. First main control coil;

[0057] 32. Second drive assembly; 321. Second main magnet; 322. Second main control coil; 323. First compensation magnet; 324. First compensation control coil;

[0058] 33. Third drive component; 331. Third main magnet; 332. Third main control coil; 333. Second compensation magnet; 334. Second compensation control coil;

[0059] 4. Second support component; 41. Support coil;

[0060] 5. First elastic element;

[0061] 6. Second elastic element; 61. Upper spring sheet; 62. Lower spring sheet;

[0062] 7. Optical lens;

[0063] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0064] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0065] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the purpose of facilitating and simplifying the description of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0066] It should be understood that in this application, "electrical connection" can be understood as physical contact and electrical conduction between components; it can also be understood as a form of connection between different components in a circuit structure through physical lines that can transmit electrical signals, such as copper foil or wires on a printed circuit board (PCB). "Communication connection" can refer to the transmission of electrical signals, including wireless communication connections and wired communication connections. Wireless communication connections do not require a physical medium and are not a connection relationship that limits the product structure. "Connection" and "connected" can both refer to a mechanical or physical connection relationship, that is, A and B being connected or connected can mean that there are fastening components (such as screws, bolts, rivets, etc.) between A and B, or that A and B are in contact with each other and are difficult to separate.

[0067] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art.

[0068] Optical Image Stabilization (OIS) relies on the structure and movement of special lenses or image sensors to minimize image instability caused by operator shake during use.

[0069] Auto Focus (AF) is a method of focusing by using the principle of light reflection from an object. The reflected light is received by the sensor on the camera (module), processed by a computer, and then drives the motorized focusing device to focus.

[0070] In related technologies, the four magnets distributed on the four sides of the drive device used for jitter correction generate magnetic field interference between each other. In multi-camera module environments, camera modules using a four-sided magnet scheme also generate magnetic field interference between each other. To address this issue, the number of magnets in some camera modules is typically reduced, but this approach leads to insufficient actuation force in some directions.

[0071] Therefore, this application provides an actuator to utilize the camera module and electronic device of the actuator to perform power compensation in the direction with fewer magnets by arranging compensating magnets in the drive components in other directions. This avoids the problem of insufficient driving force caused by the reduction in the number of magnets, so that the camera module using the actuator does not have magnetic field interference problems. In multi-module scenarios, the number of magnets cannot be reduced, which has good market application prospects.

[0072] The electronic device provided in this application can be any of various types of computer system devices that are mobile or portable and perform wireless communication. Specifically, the electronic device can be a mobile phone or smartphone (e.g., an iPhone™-based phone, an Android™-based phone), a portable gaming device (e.g., a Nintendo DS™, PlayStation Portable™, Gameboy Advance™, iPhone™), a laptop computer, a PDA, a portable internet device, a music player, and a data storage device, other handheld devices, and devices such as headphones. The electronic device can also be other wearable devices that require charging (e.g., head-mounted devices (HMDs) such as electronic bracelets, electronic necklaces, electronic devices, or smartwatches).

[0073] Electronic devices can also be any one of a plurality of electronic devices, including but not limited to cellular phones, smartphones, other wireless communication devices, personal digital assistants, audio players, other media players, music recorders, video recorders, other media recorders, radios, medical devices, vehicle transport instruments, calculators, programmable remote controls, pagers, laptop computers, desktop computers, printers, netbooks, personal digital assistants (PDAs), portable multimedia players (PMPs), Moving Image Experts Group (MPEG-1 or MPEGG-2) audio layer 3 (MP3) players, portable medical devices, and digital cameras and combinations thereof.

[0074] In some cases, electronic devices can perform multiple functions (e.g., playing music, displaying video, storing pictures, and receiving and sending telephone calls). If desired, electronic devices can be such as cellular phones, media players, other handheld devices, wristwatches, pendant devices, handset devices, or other compact portable devices.

[0075] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0076] On the one hand, combined with Figure 1 , Figure 2 As shown, this embodiment provides an actuator, which includes: a base member 1, a first support member 2, and at least two drive components 3.

[0077] The first support member 2 is movably disposed above the base member 1. The first support member 2 can move relative to the base member 1 along the first direction X and the second direction Y respectively. The first direction X and the second direction Y are at a preset angle α, where 0 < α < 180°.

[0078] For example, the preset angle α between the first direction X and the second direction Y can be 10°, 30°, 45°, 60°, 90°, 100°, 120°, 150°, 160°, 175°, etc. Optionally, the preset angle α between the first direction X and the second direction Y is 90°.

[0079] At least two drive components 3 are used to drive the first support member 2 to move along the first direction X and the second direction Y, respectively.

[0080] In some possible implementations, the number of drive components 3 includes, but is not limited to, two, three, four, etc. Specifically, one drive component 3 can be used to move the first support member 2 along the first direction X, or two or more drive components 3 can be used to move the first support member 2 along the first direction X. Similarly, one drive component 3 can be used to move the first support member 2 along the second direction Y, or two or more drive components 3 can be used to move the first support member 2 along the second direction Y.

[0081] Each drive component 3 includes a main drive module, and at least one drive component 3 also includes a compensation drive module; the drive direction of the main drive module in the same drive component 3 is one of the first direction X and the second direction Y, and the drive direction of the compensation drive module is the other of the first direction X and the second direction Y.

[0082] For example, the main drive module is arranged along the first direction X, and the compensation drive module is arranged along the second direction Y. Thus, the drive assembly 3 can rely on the main drive module to provide power for the first support member 2 to move along the first direction X, and rely on the compensation drive module to provide power for the first support member 2 to move along the second direction Y. Using this drive assembly 3, power compensation can be provided for the drive assembly 3 in the second direction Y, which can correspondingly reduce the number of magnets in the main drive module in the second direction Y. This reduces magnetic field interference and, more importantly, reduces the number of magnets, thus lowering costs and reducing the weight of the actuator.

[0083] In another example, the main drive module is arranged along the second direction Y, and the compensation drive module is arranged along the first direction X. Thus, the drive assembly 3 can rely on the main drive module to provide power for the first support member 2 to move along the second direction Y, and rely on the compensation drive module to provide power for the first support member 2 to move along the first direction X. Using this drive assembly 3, power compensation can be provided for the drive assembly 3 in the first direction X, which can correspondingly reduce the number of magnets in the main drive module in the first direction X. This reduces magnetic field interference and, more importantly, reduces the number of magnets, thus lowering costs and reducing the weight of the actuator.

[0084] The actuator of this application has a first support member that can move relative to the base member along a first direction and a second direction under the drive of the drive assembly. This can be used to achieve optical image stabilization of the camera module. The drive assembly drives the first support member to move relative to the base member by means of a main drive module. At least one drive assembly is further provided with a compensation drive module, which can provide power compensation to the drive assembly in another direction. Thus, when the driving force in that direction is insufficient due to the reduction in the number of magnets, the compensation drive module arranged in another drive assembly can be used to provide power compensation, thereby avoiding the problem of insufficient driving force caused by the reduction in the number of magnets.

[0085] Combination Figure 1 , 2 As shown, in some embodiments, each drive component 3 includes a main magnet 301 and a main control coil 302 that are magnetically coupled. The main magnet 301 is located on one of the base component 1 and the first support component 2, and the main control coil 302 is located on the other of the base component 1 and the first support component 2.

[0086] For example, the main magnet 301 is located on the base 1, and the main control coil 302 is located on the first support 2. Alternatively, the main magnet 301 is located on the first support 2, and the main control coil 302 is located on the base 1.

[0087] It should be noted that the magnetic field coupling between the main magnet 301 and the main control coil 302 can be understood as the magnetic field generated by the main magnet 301 at least partially coinciding with the magnetic field generated by the main control coil 302, thus creating an attractive or repulsive force between the two magnetic fields. The magnetic field generated by the main control coil 302 is affected by the current flowing through it, thereby allowing the interaction force between the two magnetic fields to be controlled. That is, by controlling the current in the main control coil 302, the magnetic field of the main control coil 302 can be changed, thereby adjusting the interaction force between the main magnet 301 and the main control coil 302. When one of them is fixed in position, the other will be pulled or pushed by the reaction force, thus producing the desired movement effect.

[0088] At least one of the at least two drive components 3 further includes a compensating magnet 303 and a compensating control coil 304 coupled to the magnetic field, with the compensating magnet 303 located on one of the base component 1 and the first support component 2, and the compensating control coil 304 located on the other of the base component 1 and the first support component 2.

[0089] Optionally, the drive assembly 3 with the compensating magnet 303 can be all of the drive assemblies 3, or it can be one or two of the drive assemblies 3. The positions of the compensating magnet 303 and the compensating control coil 304 can be such that the compensating magnet 303 is located on the base 1 and the compensating control coil 304 is located on the first support 2, or the compensating magnet 303 is located on the first support 2 and the compensating control coil 304 is located on the base 1.

[0090] It should be noted that the positions of the compensating magnet 303 and the main magnet 301 in a single drive assembly 3 may be the same or different. For example, both the compensating magnet 303 and the main magnet 301 in a single drive assembly 3 may be located on the base assembly 1 or both may be located on the first support assembly 2. Another example is that the compensating magnet 303 and the main magnet 301 in a single drive assembly 3 may be located on the base assembly 1 and the first support assembly 2, respectively. This includes situations where the compensating magnet 303 is located on the base assembly 1 and the main magnet 301 is located on the first support assembly 2, or where the compensating magnet 303 is located on the first support assembly 2 and the main magnet 301 is located on the base assembly 1.

[0091] The positions of the compensation control coil 304 and the main control coil 302 in a single drive assembly 3 can be the same or different. For example, both the compensation control coil 304 and the main control coil 302 in a single drive assembly 3 may be located on the base member 1 or both may be located on the first support member 2. Alternatively, the compensation control coil 304 and the main control coil 302 in a single drive assembly 3 may be located on the base member 1 and the first support member 2, respectively. This includes situations where the compensation control coil 304 is located on the base member 1 and the main control coil 302 is located on the first support member 2, or where the compensation control coil 304 is located on the first support member 2 and the main control coil 302 is located on the base member 1.

[0092] Furthermore, the magnetic field coupling method of the compensating magnet 303 and the compensating control coil 304 is the same as that of the main magnet 301 and the main control coil 302.

[0093] The magnetic poles of the main magnet 301 are arranged along one of the first direction X and the second direction Y, while the magnetic poles of the compensating magnet 303 are arranged along the other of the first direction X and the second direction Y. The arrangement of the magnetic poles determines the direction of the magnetic field generated by the magnet, so that when the magnet interacts with the control coil, it can generate a force along the target direction.

[0094] For example, the magnetic poles of the main magnet 301 are arranged along the first direction X, and the magnetic poles of the compensating magnet 303 are arranged along the second direction Y. Thus, the drive assembly 3 can rely on the main magnet 301 to provide power for the first support member 2 to move along the first direction X, and rely on the compensating magnet 303 to provide power for the first support member 2 to move along the second direction Y. Using this drive assembly 3, power compensation can be provided for the drive assembly 3 in the second direction Y, which can correspondingly reduce the number of magnets in the drive assembly 3 in the second direction Y. This reduces magnetic field interference and, more importantly, reduces the number of magnets, thus lowering costs and reducing the weight of the actuator.

[0095] In another example, the magnetic poles of the main magnet 301 are arranged along the second direction Y, and the magnetic poles of the compensating magnet 303 are arranged along the first direction X. Thus, the drive assembly 3 can rely on the main magnet 301 to provide power for the first support member 2 to move along the second direction Y, and rely on the compensating magnet 303 to provide power for the first support member 2 to move along the first direction X. Using this drive assembly 3, power compensation can be provided for the drive assembly 3 in the first direction X, which can correspondingly reduce the number of magnets in the drive assembly 3 in the first direction X. This reduces magnetic field interference and, more importantly, reduces the number of magnets, thus lowering costs and reducing the weight of the actuator.

[0096] like Figure 3As shown, both the main magnet 301 and the compensating magnet 303 include two magnetic poles, namely the N pole and the S pole. The N pole and the S pole of the main magnet 301 are arranged along one of the first direction X and the second direction Y, and the N pole and the S pole of the compensating magnet 303 are arranged along the other of the first direction X and the second direction Y.

[0097] Taking the arrangement of the magnetic poles of the main magnet 301 along the first direction X and the arrangement of the magnetic poles of the compensating magnet 303 along the second direction Y as an example:

[0098] With the center of the main magnet 301 as the origin of the first direction X, the N pole of the main magnet 301 is located on the side of the positive direction of the first direction X, and the S pole is located on the side of the negative direction of the first direction X. Alternatively, the S pole of the main magnet 301 is located on the side of the positive direction of the first direction X, and the N pole is located on the side of the negative direction of the first direction X.

[0099] With the center of the compensating magnet 303 as the origin of the second direction Y, the N pole of the compensating magnet 303 is located on the side of the positive direction of the second direction Y, and the S pole is located on the side of the negative direction of the second direction Y. Alternatively, the S pole of the compensating magnet 303 is located on the side of the positive direction of the second direction Y, and the N pole is located on the side of the negative direction of the second direction Y.

[0100] It needs to be explained that, Figure 3 The positions of the N and S poles of the magnet are only one example of this embodiment. The positions of the N and S poles of any magnet can be interchanged, and this application does not limit this.

[0101] In this embodiment, the actuator allows the first support member 2 to move relative to the base member 1 along the first direction X and the second direction Y under the drive of the drive assembly 3. This can be used to achieve optical image stabilization of the camera module. The drive assembly 3 relies on the main magnet 301 and the main control coil 302 respectively arranged on the first support member 2 and the base member 1. The magnetic fields of the two are coupled to each other. When the current of the main control coil 302 changes, its magnetic field changes accordingly. The main magnet 301 is subjected to Ampere force, thereby driving the first support member 2 to move relative to the base member 1.

[0102] At least one drive component 3 is further provided with a compensating magnet 303 and a compensating control coil 304. The magnetization direction of the compensating magnet 303 is the same as the magnetization direction of the main magnet 301 of the drive component 3 in the other direction. The compensating magnet 303 can provide power compensation for the drive component 3 in the other direction. Thus, when the driving force is insufficient in that direction due to the reduction in the number of magnets, the compensating magnet 303 arranged elsewhere can provide power compensation, thereby avoiding the problem of insufficient driving force caused by the reduction in the number of magnets.

[0103] Combination Figure 1, Figure 2 As shown, in some embodiments, the driving component 3 includes a first driving component 31, a second driving component 32, and a third driving component 33.

[0104] At least one of the second drive assembly 32 and the third drive assembly 33 includes a compensating magnet 303 and a compensating control coil 304; the first drive assembly 31 is used to drive the first support member 2 to move along the first direction X, and the second drive assembly 32 and the third drive assembly 33 are used to drive the first support member 2 to move along the second direction Y.

[0105] The actuator in this embodiment uses a first drive assembly 31 to drive the first support member 2 to move along the first direction X, and uses a second drive assembly 32 and a third drive assembly 33 to drive the first support member 2 to move along the second direction Y. At least one of the second drive assembly 32 and the third drive assembly 33 is provided with the aforementioned compensating magnet 303 and compensating control coil 304. The second drive assembly 32 and / or the third drive assembly 33 can provide power compensation for the first drive assembly 31. Thus, only one set of drive assembly 3 needs to be arranged in the first direction X, that is, the number of magnets is reduced by at least one. On the one hand, it is beneficial to reduce magnetic field interference, and on the other hand, it is beneficial to reduce costs and reduce the weight of the actuator.

[0106] Combination Figure 1 , Figure 2 As shown, in some embodiments, the main magnet 301 and the main control coil 302 of the first drive assembly 31 are located on one side of the base 1 or the first support 2 along the first direction X, respectively.

[0107] The main magnet 301 and main control coil 302 of the second drive assembly 32 are respectively located on one side of the base 1 or the first support 2 along the second direction Y; the main magnet 301 and main control coil 302 of the third drive assembly 33 are respectively located on the other side of the base 1 or the first support 2 along the second direction Y.

[0108] The actuator in this embodiment relies on the second drive component 32 and the third drive component 33 corresponding to the second direction Y to provide power compensation to the first drive component 31 corresponding to the first direction X, thus realizing a three-sided magnet actuation scheme. Three sets of magnets are respectively arranged on the three sides of the actuator, while no magnets are arranged on the other side along the first direction X, i.e., the side opposite the first drive component, thereby providing good magnetic field conditions on that side. This side is defined as the weak magnetic side. For example, in a multi-camera module scenario, the actuator of each camera module faces the adjacent camera module with its weak magnetic side, which helps to reduce the magnetic interference of the actuator of this camera module to the adjacent camera module. Furthermore, each camera module can be made to face the adjacent camera module with its weak magnetic side.

[0109] Combination Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the first drive assembly 31 includes a first main magnet 311, the magnetic poles of which are arranged along a first direction X.

[0110] The second drive assembly 32 includes a second main magnet 321 and a first compensating magnet 323. The magnetic poles of the second main magnet 321 are arranged along the second direction Y, and the magnetic poles of the first compensating magnet 323 are arranged along the first direction X.

[0111] The third drive assembly 33 includes a third main magnet 331 and a second compensating magnet 333. The magnetic poles of the third main magnet 331 are arranged along the second direction Y, and the magnetic poles of the second compensating magnet 333 are arranged along the first direction X.

[0112] The second direction Y is driven by the second drive component 32 and the third drive component 33, which can generate a large driving force, even to the point of having excessive driving force. Compared to the second direction Y, the first direction X is only equipped with the first drive component 31, and the driving force is slightly insufficient.

[0113] Based on this, this embodiment splits the magnet component in the second direction Y, where the total driving force is relatively large. The magnet component in the second driving assembly 32 is split into a second main magnet component 321 and a first compensating magnet component 323, and the magnet component in the third driving assembly 33 is split into a third main magnet component 331 and a second compensating magnet component 333. The second main magnet component 321 and the third main magnet component 331 generate the driving force along the second direction Y. Although the driving force is slightly lower than that of a complete magnet component, it can still meet the driving requirements in the second direction Y. Although the first compensating magnet component 323 and the second compensating magnet component 333 are located in the second driving assembly 32 and the third driving assembly 33, by arranging their magnetic poles along the first direction X, they can also generate the driving force along the first direction X. Thus, the driving force in the first direction X is jointly provided by the first main magnet component 311, the first compensating magnet component 323 and the second compensating magnet component 333, which makes up for the problem of insufficient driving force of a single magnet component.

[0114] Combination Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the second main magnet 321 and the first compensating magnet 323 are arranged at intervals along the first direction X. Arranging the second main magnet 321 and the first compensating magnet 323 along the first direction X conforms to the arrangement rules of the second drive assembly 32, eliminating the need to adjust the assembly position and space of the second drive assembly 32, and avoiding modifications to the surrounding structure, particularly the first support member 2, thus improving the applicability of the actuator in this embodiment.

[0115] Combination Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the third main magnet 331 and the second compensating magnet 333 are arranged at intervals along the first direction X. Arranging the third main magnet 331 and the second compensating magnet 333 along the first direction X conforms to the arrangement rules of the third drive assembly 33, eliminating the need to adjust the assembly position and space of the third drive assembly 33, and avoiding modifications to the surrounding structure, particularly the first support member 2, thus improving the applicability of the actuator in this embodiment.

[0116] In some possible implementations, the second main magnet 321 and the third main magnet 331 are respectively attached to two opposing inner walls of the first support member 2, and the first compensating magnet 323 and the second compensating magnet 333 are attached to the inner wall of the first support member 2 using the same process. The first support member 2 serves as a support structure for the aforementioned magnets.

[0117] Combination Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the first compensating magnet 323 is located on the side of the second main magnet 321 close to the first main magnet 311; the first compensating magnet 323 and the first main magnet 311 are close in position and have the same magnetic pole arrangement direction, so that the magnetic field direction of the two is consistent and the interference between the magnetic fields is small.

[0118] Combination Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the second compensating magnet 333 is located on the side of the third main magnet 331 closer to the first main magnet 311. The second compensating magnet 333 and the first main magnet 311 are close in position, and their magnetic poles are arranged in the same direction, so their magnetic field directions are consistent and the interference between the magnetic fields is small.

[0119] Combination Figure 2 and Figure 3 As shown, in some embodiments, the first drive component 31 further includes a first main control coil 312, the second drive component 32 further includes a second main control coil 322 and a first compensation control coil 324, and the third drive component 33 further includes a third main control coil 332 and a second compensation control coil 334.

[0120] The first main magnet 311 is located on one side of the first support member 2 along the first direction X, and the first main control coil 312 is located on one side of the base member 1 along the first direction X.

[0121] The second main magnet 321 and the first compensating magnet 323 are located on one side of the first support member 2 along the second direction Y, and the second main control coil 322 and the first compensating control coil 324 are located on one side of the base member 1 along the second direction Y; the third main magnet 331 and the second compensating magnet 333 are located on the other side of the first support member 2 along the second direction Y, and the third main control coil 332 and the second compensating control coil 334 are located on the other side of the base member 1 along the second direction Y.

[0122] When the first support member 2 needs to move along the first direction X, the first main control coil 312, the first compensation control coil 324, and the second compensation control coil 334 are energized. The first main control coil 312 interacts with the first main magnet 311, the first compensation control coil 324 interacts with the first compensation magnet 323, and the second compensation control coil 334 interacts with the second compensation magnet 333. Since the positions of the first main control coil 312, the first compensation control coil 324, and the second compensation control coil 334 are fixed on the base member 1, the first main magnet 311, the first compensation magnet 323, and the second compensation magnet 333 are subjected to a reaction force, driving the first support member 2 to move along the first direction X. The direction of movement can be either the positive or negative direction of the first direction X, and can be controlled by changing the current direction and / or magnitude of the three control coils.

[0123] When the first support member 2 needs to move along the second direction Y, the second main control coil 322 and the third main control coil 332 are energized. The second main control coil 322 interacts with the second main magnet 321, and the third main control coil 332 interacts with the third main magnet 331. Since the positions of the second main control coil 322 and the third main control coil 332 are fixed on the base member 1, the second main magnet 321 and the third main magnet 331 are subjected to a reaction force, driving the first support member 2 to move along the second direction Y. The direction of movement can be either the positive or negative direction of the second direction Y, and can be controlled by changing the current direction and / or magnitude of the two control coils.

[0124] Combination Figure 3 As shown, in some embodiments, the orthographic projections of the first compensation control coil 324 along the second direction Y and the second compensation control coil 334 along the second direction Y are at least partially staggered; or, the orthographic projections of the first compensation magnet 323 along the second direction Y and the second compensation magnet 333 along the second direction Y are at least partially staggered.

[0125] In this embodiment, the first compensation control coil 324 and the second compensation control coil 334 are arranged alternately, or the first compensation magnet 323 and the second compensation magnet 333 are arranged alternately. This ensures that the first support member 2 always has a magnet to provide driving force compensation during its movement along the first direction X. The driving force of the first support member 2 is maintained at a stable level, and there will be no problem of a significant reduction in driving force due to a large movement distance.

[0126] Combination Figure 3 As shown, in some embodiments, the dimensions of the first compensation control coil 324 and the second compensation control coil 334 along the second direction Y are larger than the dimensions of the second main control coil 322 or the third main control coil 332 along the second direction Y. This ensures that during the movement of the first support member 2 along the second direction Y, the first compensation magnet 323 is always within the magnetic field range of the first compensation control coil 324, and the second compensation magnet 333 is always within the magnetic field range of the second compensation control coil 334, thus ensuring the driving compensation capability of the second drive assembly 32 and the third drive assembly 33 in the first direction X.

[0127] Combination Figure 4 and Figure 5 As shown, in some embodiments, the actuator further includes a second support member 4 located inside the first support member 2. The second support member 4 is provided with a support coil 41, which can be coupled to the magnetic field of at least one of the main magnet 301, the main control coil 302, the compensating magnet 303, and the compensating control coil 304 to drive the second support member 4 to move relative to the first support member 2 along a third direction Z, which is perpendicular to the plane containing the first direction X and the second direction Y.

[0128] Using the second support member 4 and its support coil 41, the second support member 4 can magnetically couple with at least one of the main magnet 301, main control coil 302, compensating magnet 303, and compensating control coil 304 of the drive assembly 3, thereby generating a reverse thrust force to drive the second support member 4 to move relative to the first support member 2 along the third direction Z. The axis of the support coil 41 is the same as the third direction Z.

[0129] Therefore, the actuator in this embodiment can drive the camera in the first direction X, the second direction Y, and the third direction Z. The movement in the first direction X and the second direction Y can realize the camera's image stabilization function, and the movement in the third direction Z can realize the camera's zoom function.

[0130] In some possible implementations, the second support member 4 is used to support the lens part in the camera module. The second support member 4 is designed as a rotating body structure with the axis of the rotating body structure being the same as the third direction Z. The support coil 41 is wound around the outer peripheral surface of the rotating body structure.

[0131] The first support component 2 has a square structure with a circular cavity in the middle to accommodate the second support component 4 and serve as the optical path for the photosensitive components in the camera module.

[0132] For example, when the second support member 4 needs to move along the third direction Z, the support coil 41 is energized. The support coil 41 interacts with the first main magnet 311, the second main magnet 321, and the third main magnet 331, and the resulting reaction force drives the second support member 4 to move along the third direction Z. The direction of movement can be either the positive or negative direction of the third direction Z, and can be controlled by changing the direction and / or magnitude of the current in the support coil 41.

[0133] Combination Figure 4 and Figure 5 As shown, in some embodiments, the actuator further includes at least one first elastic element 5, which is connected between the first support member 2 and the base member 1, and is used to movably support the first support member 2 above the base member 1.

[0134] The first elastic element 5 is a filamentous elastic element, arranged in an array between the base element 1 and the first support element 2. For example, there are four first elastic elements 5, arranged in a rectangle at the four corners of the base element 1, which elastically support the first support element 2 above the base element 1.

[0135] Combination Figure 4 and Figure 5 As shown, in some embodiments, the actuator further includes at least one second elastic element 6, which is connected between the second support member 4 and the first support member 2, and is used to movably support the second support member 4 on the inside of the first support member 2.

[0136] The second elastic element 6 is a sheet-like elastic element, symmetrically arranged at the upper and lower ends of the first support element 2 and the second support element 4. For example, the second elastic element 6 includes an upper elastic piece 61 and a lower elastic piece 62. The upper elastic piece 61 is located at the upper end of the first support element 2 and the second support element 4, and the lower elastic piece 62 is located at the lower end of the first support element 2 and the second support element 4. The upper elastic piece 61 and the lower elastic piece 62 work together to elastically connect the second support element 4 and the first support element 2.

[0137] On the other hand, combining Figure 4 and Figure 5As shown, this embodiment provides a camera module, which includes: an optical lens 7; a photosensitive assembly, which includes a circuit board and a photosensitive element, the photosensitive element being electrically connected to the circuit board, the optical lens 7 being located on the photosensitive path of the photosensitive element; and an actuator of this application, wherein the optical lens 7 is connected to a first support member 2, and the photosensitive assembly is connected to a base member 1.

[0138] The camera module in this embodiment uses the actuator of this application and has all the beneficial technical effects of all embodiments herein. The optical lens 7 moves with the second support member 4 along the third direction Z, which enables the zoom of the camera module. The optical lens 7 moves with the second support member 4 and the first support member 2 along the first direction X and / or the second direction Y, which enables the image stabilization of the camera module.

[0139] The camera module in this embodiment is suitable for multi-module scenarios. In multi-module scenarios, adjacent camera modules are connected on the weak magnetic side, which can overcome the problem of magnetic field interference between adjacent camera modules.

[0140] In some possible implementations, the circuit board surface is provided with printed circuits, and the circuit board includes a printed circuit board (PCB), a flexible printed circuit board (FPC), a rigid-flex board, etc.

[0141] For example, the circuit board is located on the top surface of the base member 1. Alternatively, at least a portion of the top surface of the base member 1 is constructed with a circuit board.

[0142] In another example, the main control coil 302 and the compensation control coil 304 are located on the surface of the circuit board, respectively.

[0143] The camera module in this embodiment is used to capture images or videos.

[0144] In some possible implementations, the photosensitive element, also known as an image sensor, can be a complementary metal-oxide-semiconductor (CMOS) or a charge-coupled device (CCD). It can also be other types of image sensors besides CMOS or CCD, such as a charge-injection device (CID) sensor.

[0145] Understandably, CMOS allows for the integration of digital signal processors (DSPs). CMOS offers advantages such as high integration density, low power consumption, and low cost, making it well-suited for electronic devices with limited installation space, such as mobile phones.

[0146] In some possible implementations, the camera module may also include a flash. The flash can be a single-color temperature flash or a dual-color temperature flash. A dual-color temperature flash is a combination of a warm-light flash and a cool-light flash, which can be used for light compensation at different color temperatures.

[0147] For example, the camera module includes a front-facing camera and a rear-facing camera. Typically, the front-facing camera is located on the front panel of the electronic device, and the rear-facing camera is located on the back of the electronic device. In some embodiments, there are at least two rear-facing cameras, which are any one of a main camera, a depth-sensing camera, a wide-angle camera, and a telephoto camera, to achieve background blurring by fusion of the main camera and the depth-sensing camera, panoramic shooting by fusion of the main camera and the wide-angle camera, virtual reality (VR) shooting, or other fusion shooting functions.

[0148] In the camera module provided in this embodiment, during the shooting process, the imaging light of the object being photographed enters the optical lens and then reaches the image sensor. The photons in the imaging light hit the image sensor and generate movable charges, which is the internal photoelectric effect. The movable charges collect to form an electrical signal.

[0149] The aforementioned electrical signals are transmitted to the motherboard via a flexible circuit board. The motherboard houses an analog-to-digital converter (A / D converter) and a digital signal processor (DSP). The A / D converter converts the electrical signals into digital signals, which are then processed by the DSP. Finally, the images are displayed on the screen of the electronic device, thus enabling the photographing of the subject.

[0150] On the other hand, an electronic device is provided, which includes the actuator or camera module of this application.

[0151] The electronic device in this embodiment uses the actuator or camera module of this application and has all the beneficial technical effects of all embodiments herein.

[0152] In some possible implementations, the terminal device may also include radio frequency (RF) circuitry, a memory including one or more computer-readable storage media, an input unit, a display unit, a sensor, an audio circuit, a Wi-Fi module, a processor including one or more processing cores, and a power supply, among other components.

[0153] The actuators or camera modules are electrically connected to the processor. The processor is the control center of the terminal device, connecting various parts of the phone via various interfaces and lines. It performs various functions and processes data by running or executing software programs and / or modules stored in the memory, and by calling data stored in the memory, thereby providing overall monitoring of the phone. Optionally, the processor may include one or more processing cores; preferably, the processor may integrate an application processor and a modem processor, wherein the application processor mainly handles the operation of the storage medium, user interface, and applications, while the modem processor mainly handles wireless communication. It is understood that the modem processor may also not be integrated into the processor.

[0154] It should be noted that in this article, "several" and "at least one" refer to one or more, while "multiple" and "at least two" refer to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0155] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0156] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0157] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0158] In the description of this specification, the references to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the embodiments or examples that are included in at least one embodiment or example of this application.

[0159] The above description is merely an embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this application should be included within the protection scope of this application.

Claims

1. An actuator, characterized in that, The actuator includes: a base (1), a first support (2), and at least two drive components (3); The first support member (2) is movably disposed above the base member (1). The first support member (2) can move relative to the base member (1) along the first direction and the second direction respectively. The first direction and the second direction are at a preset angle α, where 0 < α < 180°. The actuator is provided with at least one drive assembly (3) on one side along the first direction and one side along the second direction, so that the at least two drive assemblies (3) are respectively used to drive the first support member (2) to move along the first direction and the second direction; Each of the driving components (3) includes a main driving module, and at least one of the driving components (3) also includes a compensation driving module; The driving direction of the main driving module in the same driving component (3) is one of the first direction and the second direction, and the driving direction of the compensation driving module is the other of the first direction and the second direction.

2. The actuator according to claim 1, characterized in that, The main drive module includes a main magnet (301) and a main control coil (302) coupled in magnetic field. The main magnet (301) is located on one of the base (1) and the first support (2), and the main control coil (302) is located on the other of the base (1) and the first support (2). The compensation drive module includes a compensation magnet (303) coupled with a magnetic field and a compensation control coil (304). The compensation magnet (303) is located on one of the base (1) and the first support (2), and the compensation control coil (304) is located on the other of the base (1) and the first support (2). The magnetic poles of the main magnet (301) are arranged along one of the first direction and the second direction, and the magnetic poles of the compensation magnet (303) are arranged along the other of the first direction and the second direction.

3. The actuator according to claim 2, characterized in that, The drive component (3) includes a first drive component (31), a second drive component (32), and a third drive component (33); At least one of the second drive assembly (32) and the third drive assembly (33) includes the compensation magnet (303) and the compensation control coil (304); The first drive assembly (31) is used to drive the first support member (2) to move along the first direction, and the second drive assembly (32) and the third drive assembly (33) are used to drive the first support member (2) to move along the second direction.

4. The actuator according to claim 3, characterized in that, The main magnet (301) and the main control coil (302) of the first drive assembly (31) are respectively located on one side of the base (1) or the first support (2) along the first direction; The main magnet (301) and the main control coil (302) of the second drive assembly (32) are respectively located on one side of the base (1) or the first support (2) along the second direction; The main magnet (301) and the main control coil (302) of the third drive assembly (33) are respectively located on the other side of the base (1) or the first support (2) along the second direction.

5. The actuator according to claim 3, characterized in that, The first drive assembly (31) includes a first main magnet (311), the magnetic poles of the first main magnet (311) being arranged along the first direction; The second drive assembly (32) includes a second main magnet (321) and a first compensating magnet (323), wherein the magnetic poles of the second main magnet (321) are arranged along the second direction, and the magnetic poles of the first compensating magnet (323) are arranged along the first direction. The third drive assembly (33) includes a third main magnet (331) and a second compensating magnet (333). The magnetic poles of the third main magnet (331) are arranged along the second direction, and the magnetic poles of the second compensating magnet (333) are arranged along the first direction.

6. The actuator according to claim 5, characterized in that, The second main magnet (321) and the first compensating magnet (323) are arranged at intervals along the first direction; And / or, The third main magnet (331) and the second compensating magnet (333) are arranged at intervals along the first direction.

7. The actuator according to claim 6, characterized in that, The first compensating magnet (323) is located on the side of the second main magnet (321) closer to the first main magnet (311); And / or, The second compensating magnet (333) is located on the side of the third main magnet (331) close to the first main magnet (311).

8. The actuator according to claim 5, characterized in that, The first drive assembly (31) further includes a first main control coil (312), the second drive assembly (32) further includes a second main control coil (322) and a first compensation control coil (324), and the third drive assembly (33) further includes a third main control coil (332) and a second compensation control coil (334); The first main magnet (311) is located on one side of the first support (2) along the first direction, and the first main control coil (312) is located on one side of the base (1) along the first direction; The second main magnet (321) and the first compensation magnet (323) are located on one side of the first support (2) along the second direction, and the second main control coil (322) and the first compensation control coil (324) are located on one side of the base (1) along the second direction; The third main magnet (331) and the second compensation magnet (333) are located on the other side of the first support (2) along the second direction, and the third main control coil (332) and the second compensation control coil (334) are located on the other side of the base (1) along the second direction.

9. The actuator according to claim 8, characterized in that, The orthographic projection of the first compensation control coil (324) along the second direction and the orthographic projection of the second compensation control coil (334) along the second direction are arranged at least partially staggered; or, The orthographic projections of the first compensating magnet (323) along the second direction and the orthographic projections of the second compensating magnet (333) along the second direction are at least partially staggered.

10. The actuator according to any one of claims 2 to 9, characterized in that, The actuator further includes a second support member (4) located inside the first support member (2). The second support member (4) is provided with a support coil (41). The support coil (41) is capable of coupling with at least one of the magnetic fields of the main magnet (301), the main control coil (302), the compensation magnet (303), and the compensation control coil (304) to drive the second support member (4) to move relative to the first support member (2) along a third direction, which is perpendicular to the plane containing the first direction and the second direction.

11. The actuator according to claim 10, characterized in that, The actuator further includes at least one first elastic element (5), which is connected between the first support member (2) and the base member (1). The at least one first elastic element (5) is used to movably support the first support member (2) above the base member (1). And / or, The actuator further includes at least one second elastic element (6), which is connected between the second support member (4) and the first support member (2). The at least one second elastic element (6) is used to movably support the second support member (4) on the inside of the first support member (2).

12. A camera module, characterized in that, The camera module includes: Optical lens (7); A photosensitive assembly, comprising a circuit board and a photosensitive element, wherein the photosensitive element is electrically connected to the circuit board, and the optical lens (7) is located on the photosensitive path of the photosensitive element; And the actuator according to any one of claims 1 to 11, wherein the optical lens (7) is connected to the first support member (2) and the photosensitive component is connected to the base member (1).

13. An electronic device, characterized in that, The electronic device includes the actuator according to any one of claims 1 to 11 or the camera module according to claim 12.

Images