Camera module and electronic device

Abstract

The present application discloses a camera module and an electronic device, which belong to the technical field of communication devices. The camera module includes a module housing, a camera, and a driving mechanism. The module housing is provided with a first inner cavity. The camera includes a lens assembly and a main body. The main body is located in the first inner cavity. The main body is provided with a second inner cavity. At least a portion of the lens assembly is located in the second inner cavity. The lens assembly is rotatable about its optical axis within the second inner cavity. The bottom of the module housing is elastically connected to the bottom of the main body by an elastic member. The driving mechanism includes a first coil group, a second coil group, a third coil group, and a fourth coil group. The first coil group includes at least a pair of first coils. At least one second coil is located between the pair of first coils. The third coil group and the second coil group are provided opposite each other, and the fourth coil group and the first coil group are provided opposite each other.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This application claims priority to Chinese Patent Application No. 202110528437.2, filed in China on May 14, 2021, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of imaging devices, and more particularly to camera modules and electronic devices. [Background technology]

[0003] With the advancement of technology, electronic devices (e.g., mobile phones, tablet computers) have undergone remarkable development. As tools with powerful functions, electronic devices have brought great convenience to users' lives and work. Imaging function is a basic function of electronic devices and can meet users' imaging needs. The imaging function is usually realized by an imaging module in electronic devices.

[0004] In the process of realizing the invention, the inventors have found that the related art has the following problems: A user usually takes an image by holding an electronic device in his / her hand, and the image taken by the electronic device is blurred during the handheld image taking process, which leads to poor quality of the image taken by the electronic device. Summary of the Invention [Problem to be solved by the invention]

[0005] An object of the embodiments of the present application is to provide a camera module and electronic device that can solve the problem of poor image capture quality of electronic devices. [Means for solving the problem]

[0006] In order to solve the above technical problems, the present application is realized as follows.

[0007] The embodiment of the present application is a module housing having a first inner cavity; a camera including a lens assembly and a body portion, the body portion being located in the first inner cavity, the body portion being provided with a second inner cavity, at least a portion of the lens assembly being located in the second inner cavity, the lens assembly being rotatable about its optical axis within the second inner cavity, and a bottom of the module housing being elastically connected to a bottom of the body portion by an elastic member; a drive mechanism including a first coil group, a second coil group, a third coil group, and a fourth coil group, one of the first coil group and the second coil group being provided in the lens assembly and the other being provided in the main body portion, and the third coil group and the fourth coil group being provided in the module housing with a gap therebetween; A camera module comprising: the first coil group includes at least a pair of first coils that are distributed at intervals along a circumferential direction of the lens assembly and are disposed opposite each other, the second coil group includes at least one second coil located between the pair of first coils, the third coil group and the second coil group are disposed opposite each other, and the fourth coil group and the first coil group are disposed opposite each other, When the first coil group and the second coil group are energized, the lens assembly is driven to rotate about the optical axis; When the third coil group and the second coil group are energized, the main body is driven to move along a first plane perpendicular to the optical axis, When the first coil group and the fourth coil group are energized, the body is driven to rotate about at least one axis in the first plane. A camera module is provided.

[0008] An embodiment of the present application provides an electronic device including the above camera module. Effect of the Invention

[0009] In the embodiment of the present application, the driving mechanism includes a first coil group, a second coil group, a third coil group, and a fourth coil group. When the first coil group, the second coil group, the third coil group, and the fourth coil group are energized, a magnetic field can be generated, and the lens assembly can be driven to move by the cooperation of the different coil groups. In this solution, the cooperation of the coil groups can move the lens assembly along a direction opposite to the shake of the camera module. This can correct the amount of shake of the camera module, further realizing the anti-shake function of the camera module, and improving the imaging quality of the electronic device. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is an exploded view of a camera module disclosed in an embodiment of the present application. [Diagram 2] FIG. 2 is an exploded view of a camera module disclosed in an embodiment of the present application. [Diagram 3] FIG. 2 is a plan view of a camera module disclosed in an embodiment of the present application. [Figure 4] FIG. 2 is a structural schematic diagram of a lens assembly of a camera module disclosed in an embodiment of the present application. [Diagram 5] FIG. 2 is a structural schematic diagram of a lens assembly of a camera module disclosed in an embodiment of the present application. [Figure 6] FIG. 2 is a structural schematic diagram of a load ring in a camera module disclosed in an embodiment of the present application. [Figure 7] FIG. 2 is a bottom view of a module housing in the camera module disclosed in the embodiment of the present application. [Figure 8] 2 is a plan view of a base plate of a module housing in a camera module disclosed in an embodiment of the present application. [Figure 9] 4 is a cross-sectional view of a base plate and an elastic member of a module housing in a camera module disclosed in an embodiment of the present application. [Figure 10]FIG. 10 is a partially enlarged view of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application. Of course, the described embodiments are only a part of the embodiments of the present application, and are not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without any creative effort shall fall within the scope of protection of the present application.

[0012] In the specification and claims of this application, technical terms such as "first," "second," and the like are not intended to describe a particular order or priority, but are intended to distinguish between similar objects. However, terms used in this manner may be interchangeable in some cases, such that the embodiments of this application may be practiced in an order other than that shown or described herein. In the specification and claims, "and / or" indicates at least one of the objects connected, and the " / " symbol generally indicates that the related objects before and after are in an "or" relationship.

[0013] Hereinafter, the camera module provided by the embodiments of the present application will be described in detail with reference to specific embodiments and application scenarios thereof with reference to the drawings.

[0014] 1 to 10, an embodiment of the present application discloses a camera module, which is applied to an electronic device. The disclosed camera module includes a module housing 100, a camera 200, and a driving mechanism.

[0015] The module housing 100 provides a mounting base for the camera 200, drive mechanism and other components of the camera module. The module housing 100 defines a first inner cavity within which the camera 200 may be at least partially disposed.

[0016] The camera 200 is a functional element of the camera module and is used to realize the imaging function of the camera module. The camera 200 includes a lens assembly 210 and a body 220, where the lens assembly 210 is used to capture external ambient light, and the body 220 provides a mounting base for the lens assembly 210 and is also a functional member of the camera 200. For example, the body 220 may include components such as a mounting housing, a photosensitive chip, a wiring board, and a filter.

[0017] The body portion 220 is located in the first inner cavity, and the body portion 220 is provided with a second inner cavity, and at least a portion of the lens assembly 210 is located in the second inner cavity. The lens assembly 210 is rotatable about its optical axis in the second inner cavity. The bottom of the module housing 100 is elastically connected to the bottom of the body portion 220 by the elastic member 300. In this case, the body portion 220 is movable in the first inner cavity, thereby interlocking the lens assembly 210 to move together in the first inner cavity.

[0018] Optionally, the resilient member may be a resilient structure such as resilient foam, springs, resilient suspension fibers, and of course other resilient structures, without being limited herein.

[0019] The drive mechanism includes a first coil group 410, a second coil group 420, a third coil group 430, and a fourth coil group 440. One of the first coil group 410 and the second coil group 420 is provided in the lens assembly 210, and the other is provided in the main body portion 220. The third coil group 430 and the fourth coil group 440 are provided in the module housing 100 with a gap between them.

[0020] The first coil group 410 includes at least a pair of first coils, and the at least a pair of first coils are distributed at intervals along the circumferential direction of the lens assembly 210. The second coil group 420 includes at least one second coil, and the at least one second coil is located between the pair of first coils. In this case, one second coil is located between the pair of first coils. When the pair of opposing first coils are energized, they form a rotating magnetic field. The second coil is a coil that is energized. In this case, the positioning of the energized second coil between the pair of energized first coils corresponds to placing the energized second coil in the rotating magnetic field. The energized second coil can perform a rotational motion that cuts a magnetic induction line in the magnetic field, and thus an Ampere force is generated between the first coil group 410 and the second coil group 420, and the second coil group 420 can be driven to rotate. When the first coil group 410 and the second coil group 420 are energized, the first coil group 410 generates a rotating magnetic field, so that the first coil group 410 may be a stator and the second coil group 420 may be a mover, which rotates in the rotating magnetic field to drive the lens assembly 210 to rotate around the optical axis. Of course, due to the interaction of forces, the second coil group 420 may be a stator and the first coil group 410 may be a mover. Of course, of the first coil group 410 and the second coil group 420, the one provided in the lens assembly 210 is the mover, and the one provided in the main body 220 is the stator.

[0021] In the above embodiment, the main body 220 and the lens assembly 210 have the freedom to rotate only along the optical axis direction, and in the case of movement of the main body 220 and the lens assembly 210 in other directions, the main body 220 and the lens assembly 210 may be considered as a single unit.

[0022] The third coil group 430 and the second coil group 420 are disposed opposite to each other. When the third coil group 430 and the second coil group 420 are energized, a magnetic field is generated. In this case, the second coil group 420 and the third coil group 430 correspond to two electromagnets, and a magnetic field interaction occurs between the third coil group 430 and the second coil group 420, driving the second coil group 420 to move. Therefore, when the third coil group 430 and the second coil group 420 are energized, the main body 220 is driven to move along a first plane perpendicular to the optical axis.

[0023] The fourth coil group 440 and the first coil group 410 are provided facing each other. When the fourth coil group 440 and the first coil group 410 are energized, a magnetic field is generated. In this case, the fourth coil group 440 and the first coil group 410 correspond to two electromagnets, and a magnetic field interaction occurs between the fourth coil group 440 and the first coil group 410, driving the first coil group 410 to move. Therefore, when the first coil group 410 and the fourth coil group 440 are energized, the main body 220 is driven to rotate around at least one axis in the first plane. In this case, as shown in FIG. 2, the direction of the electromagnetic force applied to the first coil group 410 by the fourth coil group 440 is parallel to the optical axis direction, and the electromagnetic force applied to the first coil group 410 by the fourth coil group 440 acts on one side of the main body 220 or the lens assembly 210, causing the main body 220 or the lens assembly 210 to rotate while tilting to the side where the electromagnetic force acts. The axis of rotation is the central axis between the side where the electromagnetic force acts and the opposite side. Optionally, the fourth coil group 440 includes at least one fourth coil, and each fourth coil is arranged opposite to one first coil. Of course, the fourth coil group 440 and the first coil group 410 have other cooperation forms, which can be flexibly set according to the actual situation, as long as the camera 200 is rotated.

[0024] In the embodiment disclosed herein, when the first coil group 410, the second coil group 420, the third coil group 430, and the fourth coil group 440 are energized, a magnetic field can be generated, and the lens assembly 210 can be driven to move by the cooperation of the different coil groups. In this solution, the cooperation of the coil groups can move the lens assembly 210 in a direction opposite to the shake of the camera module. This can correct the amount of shake of the camera module, and further realize the anti-shake function of the camera module, thereby improving the imaging quality of the electronic device.

[0025] Also, changing the direction of the inflow current in the coil group will change the direction of the Ampere force, which makes the lens assembly 210 more flexible in turning and provides better anti-shake effect.

[0026] In addition, the cooperation of different coil groups can generate multi-directional Ampere forces, which can drive the lens assembly 210 to move along multiple directions, further increasing the range of motion of the lens assembly 210 and further improving the anti-shake performance of the camera module.

[0027] In another optional embodiment, the first coil group 410 may include a plurality of first coils. The number of the first coils is an even number. In this case, the first coil group 410 may be a pair of two first coils, and the spacing angle between two adjacent first coils is the same. The second coil group 420 may include a plurality of second coils, and at least one second coil is provided correspondingly between each pair of first coils. In this solution, a pair of opposing first coils forms one phase. In this solution, the first coil group 410 forms multiple phases, thereby increasing the PTF of the magnetic field. This increases the driving force received by the lens assembly 210, further improving the rotation efficiency of the lens assembly 210, and further improving the anti-shake effect of the lens assembly 210. In addition, the direction switching of the lens assembly 210 can generate a plurality of direction switching forces. This makes it possible to make the rotation of the lens assembly 210 along the optical axis direction more stable.

[0028] Furthermore, the first coil group 410 includes three pairs of first coils, the number of second coils is three, the angle between two adjacent second coils is 120°, and three second coils and three pairs of first coils are provided corresponding to each other. In this case, the first coils in the first coil group 410 are divided into three pairs, each pair of the first coil group 410 forms one phase, and the phase angle of the first coil group 410 is 120°. Each phase is associated with one second coil. In this case, each phase of the first coil group 410 can provide a stable magnetic field for the second coil group 420, and the stability of the rotation of the lens assembly 210 along the optical axis is further improved. In addition, since the first coil group 410 is evenly distributed in a 360° circular direction, the force received by the lens assembly 210 is more uniform, and the lens assembly 210 is less likely to tilt to one side, thereby improving the reliability of the camera module.

[0029] In another optional embodiment, the third coil group 430 may include three third coils, each of which is disposed opposite one second coil, and the angle between any two adjacent third coils is 120°. In this solution, the three third coils are distributed along the circumferential direction of the body 220, and the angle between any two adjacent second coils is 120°, and the three third coils and the three second coils generate electromagnetic forces in three directions in the first plane. The change in the magnitude of the electromagnetic forces in the three directions can realize movement in multiple directions in the first plane. This increases the range of movement of the body 220 in the first plane, and further improves the anti-shake performance of the camera module.

[0030] In addition, since the third coil group 430 is evenly distributed along the circumferential direction of the lens assembly 210, the force received by the lens assembly 210 in each direction is uniform, and the blur prevention effect is excellent.

[0031] For example, movement in the plane formed by the X and Y axes can be achieved by varying the magnitude of electromagnetic force in three directions.

[0032] In another optional embodiment, the fourth coil group 440 may include three fourth coils, each of which is arranged opposite one first coil in each pair of first coils, and the angle between any two adjacent fourth coils is 120°. In this solution, the direction of the electromagnetic force between the fourth coil and the first coil is parallel to the optical axis. In this case, when one or more of the fourth coils and the first coil are energized, the camera 200 rotates. In this solution, the fourth coil and the first coil at different positions are controlled to be energized, thereby realizing rotation in multiple directions, and the anti-shake performance of the camera module is further improved.

[0033] In the above embodiment, the fourth coils in the fourth coil group 440 are evenly distributed along the circumferential direction of the lens assembly 210, so that the force received by the lens assembly 210 in each direction is uniform, and the anti-shake effect is good.

[0034] For example, by controlling the fourth coil and the third coil at different positions to be energized, rotation in directions around the X-axis and Y-axis can be realized.

[0035] In another optional embodiment, when all the fourth coils in the fourth coil group 440 and the first coils corresponding to all the fourth coils are energized, the body 220 is driven to move along the optical axis direction, which can realize the focusing function of the camera module and further improve the imaging performance of the camera module.

[0036] In the embodiment of the present application, a variety of structures of the module housing 100 are possible. Referring to FIG. 1, in a specific embodiment, the module housing 100 may include a cover 110 and a base plate 120. A first inner cavity may be formed by being surrounded by the cover 110 and the base plate 120. The cover 110 may be provided with an escape hole 111. The lens assembly 210 is provided facing the escape hole 111. The escape hole 111 communicates with the first inner cavity. The escape hole 111 is used to expose a lens in the lens assembly 210. The module housing 100 having the above structure has good mounting performance and facilitates the installation of the lens assembly 210.

[0037] Alternatively, the cover 110 and the base plate 120 may be connected by a method such as engagement, adhesion, welding, etc. The specific manner of connecting the cover 110 and the base plate 120 is not limited in this specification.

[0038] In the above embodiment, the body 220 is likely to undergo rigid collision with the base plate 120 during the rotation process, and the body 220 is likely to be damaged. In another optional embodiment, the elastic member 300 may include an elastic pad 310 and a plurality of springs 320. The elastic pad 310 may be provided on the surface of the base plate 120 facing the body 220. The plurality of springs 320 may be distributed at intervals along the circumferential direction of the body 220. Optionally, the springs 320 may be distributed at four corners of the body 220. The elastic pad 310 may be provided with a positioning hole 311. The springs 320 may be located in the positioning hole 311. In this solution, the elastic pad 310 can effectively prevent rigid collision between the body 220 and the base plate 120 by preventing rigid contact between the body 220 and the base plate 120. This makes the body 220 less likely to be damaged, and improves the safety and reliability of the camera module.

[0039] In the above embodiment, the resilient pad 310 may be a resilient structural member such as foam, and of course may be made of other resilient structures, not limited herein.

[0040] In another optional embodiment, a positioning protrusion 121 is provided on the side of the base plate 120 facing the main body 220, and the positioning protrusion 121 and the spring 320 are both located in the positioning hole 311, and the end of the positioning protrusion 121 opposite the base plate 120 is connected to the spring 320. In this solution, the positioning protrusion 121 is located in the positioning hole 311, and can be used to determine the mounting position of the elastic member 300 and prevent the elastic member 300 from shifting. This makes it difficult for the center of rotation of the camera 200 to shift, and further improves the anti-shake performance of the camera module.

[0041] In another alternative embodiment, the second coil group 420 and the third coil group 430 may be located in a second plane. The third coil group 430 may be arranged to surround the second coil group 420. The second plane may be parallel to the first plane. In this solution, the third coil group 430 may be arranged to surround the second coil group 420, so that the third coil group 430 can be arranged using the gap between the module housing 100 and the main body 220. This makes it less likely that the third coil group 430 will interfere with the camera 200, and improves the reliability of the mounting of the camera module.

[0042] Optionally, a first load protrusion may be provided extending from the top to the bottom of the module housing 100. The third coil group 430 may be provided on the first load protrusion. Of course, the third coil group 430 may be fixed to the module housing 100 in other manners, which are not limited herein.

[0043] In the above embodiment, since the first coil group 410 and the fourth coil group 440 need to generate an electromagnetic force parallel to the optical axis, the fourth coil group 440 may be provided at the bottom or top of the module housing 100. The bottom is used to provide members such as the elastic member 300, and there is no position for mounting. Therefore, in another optional embodiment, the first coil group 410 and the fourth coil group 440 may be distributed along the optical axis direction, and the fourth coil group 440 may be located between the first coil group 410 and the top of the module housing 100. In this solution, the fourth coil group 440 may be located between the first coil group 410 and the top of the module housing 100, which contributes to providing the fourth coil group 440 in the mounting gap between the top of the lens assembly 210 and the top of the module housing 100. This makes the structural arrangement of the camera module more reasonable.

[0044] Optionally, a second load protrusion may be provided extending from the top to the bottom of the module housing 100. The fourth coil group 440 may be provided on the second load protrusion. Of course, the fourth coil group 440 may be secured to the module housing 100 in other manners and is not limited herein.

[0045] In another optional embodiment, the main body 220 may be provided with a load ring 230. The load ring 230 may be provided to surround the lens assembly 210. The first coil group 410 or the second coil group 420 may be provided on the load ring 230. In this case, the load ring 230 is fixedly connected to the main body 220, and the lens assembly 210 is rotatable with respect to the load ring 230. In this case, the load ring 230 is not only used to load the first coil group 410 or the second coil group 420, but also used to support the lens assembly 210. This makes the structure of the camera module simpler.

[0046] Optionally, an annular sliding groove may be provided on the inner wall of the load ring 230. An annular protrusion is provided on the outer side of the lens assembly 210, and the annular protrusion is located in the annular sliding groove and is rotatable relative to the annular sliding groove. Of course, the load ring 230 may be rotatably connected to the lens assembly 210 in other ways, which are not limited herein.

[0047] Optionally, the load ring 230 may be connected to the body 220 by adhesive, mating, or other methods not limited herein. The load ring 230 may be made of a plastic material, or other materials not limited herein.

[0048] In another optional embodiment, at least one pair of first coils may be coupled to at least one second coil located therebetween to limit their positions in the direction around the optical axis. In this case, two adjacent first coils and the second coil group 420 located therebetween may generate mechanical position limits, thereby limiting the position of the lens assembly 210 relative to the rotation range. This prevents the lens assembly 210 from rotating excessively, which may affect the anti-shake effect.

[0049] In the embodiment disclosed herein, the first coil group 410 and the second coil group 420 can realize rotation along the optical axis direction. The third coil group 430 and the second coil group 420 can realize shift in the first plane. The fourth coil group 440 and the first coil group 410 can realize rotation along at least one axis in the first plane, i.e., rotation in a direction around the X-axis and / or Y-axis in FIG. 4. The X-axis and the Y-axis are two mutually perpendicular axes in the first plane, and the X-axis and the Y-axis are also perpendicular to the optical axis. The fourth coil group 440 and the first coil group 410 can also realize movement along the optical axis direction of the camera 200. The present application can realize six-axis movement of the camera module.

[0050] Of course, the present application is not limited to single-axis motion, and motion methods may be combined to further improve the anti-shake performance of the camera module.

[0051] For example, when the camera module needs to simultaneously correct the movement in the first plane and the direction of rotation around the X-axis and the Y-axis, the first coil group 410, the second coil group 420, the third coil group 430, and the fourth coil group 440 operate simultaneously as an operating coil group. The movement in the first plane can be realized by adjusting the magnitude and direction of the current in the third coil group 430 and the second coil group 420. In this case, the lens assembly 210, the main body 220, and the load ring 230 move together along the first plane. In addition, with respect to realizing the rotation around the X-axis and the Y-axis, the rotation in the direction around the X-axis and the Y-axis can be realized by adjusting the magnitude and direction of the current in the fourth coil group 440 and the first coil group 410. In this case, the lens assembly 210, the main body 220, and the load ring 230 rotate together along the direction around the X-axis and the Y-axis.

[0052] During the above compensation, the first coil group 410 and the second coil group 420 do not rotate with interference with each other. Therefore, when the first coil group 410 and the second coil group 420 rotate relative to each other, a current pair of the same phase is required. When the second coil group 420 rotates in the directions about the X-axis and the Y-axis, it does not create the electromagnetic conditions required for rotation in the optical axis direction. Therefore, no interference occurs during compensation for rotation in the directions about the X-axis and the Y-axis and for translation in the first plane.

[0053] In another case, correction for rotation in the optical axis direction and the X-axis and / or Y-axis may be performed simultaneously. Rotation of the lens assembly 210 is achieved by energizing the first coil group 410 and the second coil group 420. In this case, only the lens assembly 210 rotates. When the fourth coil group 440 and the first coil group 410 perform rotation correction in the X-axis and / or Y-axis, the correction value is met by adjusting the magnitude and direction of the current of the fourth coil group 440. The present application can achieve six-axis correction of the camera module and can simultaneously meet multi-axis parallel correction.

[0054] In the above embodiment, the coils in the first coil group 410, the second coil group 420, the third coil group 430, and the fourth coil group 440 may all be wound around an iron core. The winding direction of the first coil in the first coil group 410 and the winding direction of the second coil in the second coil group 420 can be flexibly selected according to actual needs.

[0055] In another optional embodiment, the winding directions of the first coil group 410 and the second coil group 420 may be swapped, and if swapped, the rotation needs of the present application can still be met.

[0056] Also, for example, when the central axes of the windings of the first coil and the second coil are arranged in parallel and located on the same circular line, magnetic fields of different magnitudes may be generated by controlling the magnitude of the inflow current, which generates an acting force on the lens assembly 210 and rotates it by a small angle in the optical axis direction. This also allows rotation along the optical axis direction to be realized.

[0057] In another optional embodiment, the first coil group 410 and the second coil group 420 may be alternating excitation groups by changing the direction and number of winding central axes in the first coil group 410 and the second coil group 420. This also allows rotation along the optical axis to be achieved.

[0058] Based on the camera module disclosed in the embodiments of the present application, the embodiments of the present application further disclose an electronic device, where the disclosed electronic device includes the camera module described in any of the embodiments in the preceding paragraph.

[0059] The electronic device disclosed in the embodiments of the present application may be a smartphone, a tablet computer, an e-book reader, a wearable device (e.g., a smart watch), an electronic game machine, etc. The specific type of the electronic device is not limited in the embodiments of the present application.

[0060] Although the examples of the present application have been described above with reference to the drawings, the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative and not limiting. Based on the suggestions of the present application, many forms that a person skilled in the art can make without departing from the spirit of the present application and the scope of protection of the claims are all within the scope of protection of the present application. [Explanation of symbols]

[0061] 100-module housing, 110-lid body, 111-relief hole, 120-base plate, 121-positioning protrusion, 200-camera, 210-lens assembly, 220-main body, 230-load ring, 300-elastic member, 310-elastic pad, 311-positioning hole, 320-spring, 410-first coil group, 420-second coil group, 430-third coil group, 440-fourth coil group

Claims

1. A module housing (100) having a first inner cavity; a camera (200) including a lens assembly (210) and a body portion (220), the body portion (220) being located in the first inner cavity, the body portion (220) being provided with a second inner cavity, at least a portion of the lens assembly (210) being located in the second inner cavity, the lens assembly (210) being rotatable about its optical axis within the second inner cavity, and a bottom of the module housing (100) being elastically connected to a bottom of the body portion (220) by an elastic member (300); a driving mechanism including a first coil group (410), a second coil group (420), a third coil group (430), and a fourth coil group (440), one of the first coil group (410) and the second coil group (420) being provided in the lens assembly (210) and the other being provided in the main body portion (220), and the third coil group (430) and the fourth coil group (440) being provided in the module housing (100) with a gap therebetween; A camera module comprising: the first coil group (410) includes at least a pair of first coils spaced apart from one another along a circumferential direction of the lens assembly, the second coil group (420) includes at least one second coil located between the pair of first coils, the third coil group (430) and the second coil group (420) are arranged opposite each other, and the fourth coil group (440) and the first coil group (410) are arranged opposite each other; When the first coil group (410) and the second coil group (420) are energized, the lens assembly (210) is driven to rotate about the optical axis; When the third coil group (430) and the second coil group (420) are energized, the main body (220) is driven to move along a first plane perpendicular to the optical axis, When the first coil group (410) and the fourth coil group (440) are energized, the body portion (220) is driven to rotate about at least one axis in the first plane. Camera module.

2. 2. The camera module of claim 1, wherein the first coil group (410) includes a plurality of first coils, the number of the first coils being an even number, and the spacing angle between two adjacent first coils is the same, and the second coil group (420) includes a plurality of second coils, with at least one second coil correspondingly provided between each pair of the first coils.

3. 3. The camera module of claim 2, wherein the first coil group (410) includes three pairs of the first coils, the number of the second coils is three, an angle between two adjacent second coils is 120°, and three of the second coils and three pairs of the first coils are provided corresponding to each other.

4. 4. The camera module of claim 3, wherein the third coil group (430) includes three third coils, each of the third coils being arranged opposite one of the second coils, and an angle between any two adjacent third coils is 120°.

5. 4. The camera module of claim 3, wherein the fourth coil group (440) includes three fourth coils, the three fourth coils being arranged opposite one of the first coils in each pair of the first coils, and the angle between any two adjacent fourth coils is 120°.

6. The camera module of claim 5, wherein when all of the fourth coils in the fourth coil group (440) and the first coils corresponding to all of the fourth coils are energized, the main body portion (220) is driven to move along the optical axis direction.

7. 2. The camera module of claim 1, wherein the module housing (100) includes a cover body (110) and a base plate (120), the first inner cavity is formed by being surrounded by the cover body (110) and the base plate (120), the cover body (110) is provided with an escape hole (111), the escape hole communicates with the first inner cavity, and the lens assembly (210) is provided opposite the escape hole (111).

8. 8. The camera module of claim 7, wherein the elastic member (300) includes an elastic pad (310) and a plurality of springs (320), the elastic pad (310) is provided on a surface of the base plate (120) facing the main body portion (220), the plurality of springs (320) are distributed at intervals along a circumferential direction of the main body portion (220), the elastic pad (310) is provided with a positioning hole (311), and the springs (320) are positioned within the positioning hole (311).

9. The camera module of claim 8, wherein a positioning protrusion (121) is provided on the side of the base plate (120) facing the main body portion (220), the positioning protrusion (121) and the spring (320) are both positioned within the positioning hole (311), and the end of the positioning protrusion (121) opposite the base plate (120) is connected to the spring (320).

10. 2. The camera module of claim 1, wherein the second coil group (420) and the third coil group (430) are located in a second plane, and the third coil group (430) is arranged to surround the second coil group (420), and the second plane is parallel to the first plane.

11. 2. The camera module of claim 1, wherein the first coil group (410) and the fourth coil group (440) are distributed along the optical axis direction, and the fourth coil group (440) is located between the first coil group (410) and a top of the module housing (100).

12. 2. The camera module of claim 1, wherein the main body portion (220) is provided with a load ring (230), the load ring (230) is provided to surround the lens assembly (210), and the first coil group (410) or the second coil group (420) is provided on the load ring (230).

13. The camera module according to claim 1 , wherein two adjacent first coils are coupled to at least one second coil located therebetween so as to have limited position in a direction around the optical axis.

14. An electronic device comprising the camera module according to any one of claims 1 to 13.

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