Camera module and electronic device

Abstract

Embodiments of the present application provide a camera module and an electronic device, and relate to the electronic field. The camera module comprises a lens and a motor. The motor comprises a housing and an electrostatic driving mechanism. The housing is provided with a receiving cavity. The electrostatic driving mechanism and the lens are arranged in the receiving cavity. The electrostatic driving mechanism is located between the lens and the housing. The electrostatic driving mechanism comprises a mover assembly and a stator assembly. The stator assembly is connected with the housing. The mover assembly is connected with the lens. The mover assembly and the stator assembly are arranged in a spaced manner. In the case that the stator assembly or the mover assembly is powered, the mover assembly drives the lens to move.

Description

Technical Field

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

[0002] With the rapid development of electronic devices, users have increasingly higher demands for their functionality. Currently, to improve the focusing performance of lenses, motors are typically installed within the camera module of electronic devices. These motors drive the lens to perform focusing and image stabilization. Motors are usually electromagnetically driven, and as lenses become larger, so do the motors, resulting in a larger camera module footprint, which is detrimental to the design of thinner and lighter electronic products. Summary of the Invention

[0003] This application provides a camera module and electronic device, which can at least solve the problem of the large volume occupied by the camera module.

[0004] An embodiment of the first aspect of this application provides a camera module, which includes a lens and a motor; the motor includes a housing and an electrostatic drive mechanism, the housing has a receiving cavity, the electrostatic drive mechanism and the lens are disposed in the receiving cavity, the electrostatic drive mechanism is located between the lens and the housing, the electrostatic drive mechanism includes a mover assembly and a stator assembly, the stator assembly is connected to the housing, the mover assembly is connected to the lens, the mover assembly and the stator assembly are spaced apart, wherein, when the stator assembly or the mover assembly is energized, the mover assembly drives the lens to move.

[0005] The second aspect of this application also provides an electronic device that employs the camera module described in the first aspect of the application.

[0006] The camera module provided in this application embodiment includes a motor with an electrostatic drive mechanism. This mechanism comprises a stator assembly and a mover assembly. When either the stator assembly or the mover assembly is energized, an electrostatic force is generated between them. This electrostatic force drives the mover assembly to move the lens, thereby achieving focusing and image stabilization. Furthermore, the electrostatic drive is highly efficient and easy to control. In addition, using electrostatic force between the stator and mover assemblies reduces the size of the motor's drive structure compared to electromagnetic drives, thus reducing the overall space occupied by the motor and the overall size of the camera module. This facilitates miniaturization of the camera module and improves the user experience. Attached Figure Description

[0007] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0008] Figure 1 This is a schematic diagram of the camera module according to an embodiment of this application;

[0009] Figure 2 This is a schematic diagram of the camera module under the first electrostatic force according to an embodiment of this application;

[0010] Figure 3 This is a schematic diagram of a camera module under a second electrostatic force according to some embodiments of this application;

[0011] Figure 4 This is a schematic diagram of a camera module under a second electrostatic force according to other embodiments of this application;

[0012] Figure 5 This is a schematic diagram of the moving part and lens of the camera module according to an embodiment of this application;

[0013] Figure 6 This is a schematic diagram of the stator assembly and housing of the camera module according to an embodiment of this application;

[0014] Figure 7 This is a schematic diagram of the moving part and the stator part of the camera module according to an embodiment of this application;

[0015] Figure 8 This is a schematic diagram of the stator assembly of the camera module according to an embodiment of this application;

[0016] Figure 9 This is a schematic diagram of the moving part and the base of the camera module according to an embodiment of this application.

[0017] Explanation of reference numerals in the attached figures:

[0018] 100. Camera module;

[0019] 100a, Lens;

[0020] 100b, Motor;

[0021] 1. Outer shell; 10. Receiving cavity;

[0022] 2. Electrostatic drive mechanism;

[0023] 21. Moving part assembly; 211. First conductive cylinder; 2111. First circuit board; 2112. Second circuit board; 212. Moving part;

[0024] 22. Stator assembly; 221. Stator; 222. Second conductive cylinder; 22a. First stator group; 221a. First stator; 22b. Second stator group; 221b. Second stator;

[0025] 23. Base;

[0026] 100c, image sensor. Detailed Implementation

[0027] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0028] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not 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 on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" 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 direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] To address the existing technical problems, embodiments of this application provide an electronic device and an electronic device thereof. For a better understanding of this application, the following describes... Figures 1 to 9 The camera module and electronic device according to the embodiments of this application will be described in detail.

[0031] The camera module provided in the embodiments of this application will be introduced first below.

[0032] Please see Figures 1 to 4 , Figure 1 This is a schematic diagram of the camera module according to an embodiment of this application; Figure 2 This is a schematic diagram of the camera module under the first electrostatic force according to an embodiment of this application; Figure 3This is a schematic diagram of a camera module under a second electrostatic force according to some embodiments of this application; Figure 4 This is a schematic diagram of a camera module under a second electrostatic force according to other embodiments of this application.

[0033] like Figure 1 As shown, this application discloses a camera module 100, which includes a lens 100a and a motor 100b. The motor 100b includes a housing 1 and an electrostatic drive mechanism 2. The housing 1 has a receiving cavity 10, and the electrostatic drive mechanism 2 and the lens 100a are disposed within the receiving cavity 10. The electrostatic drive mechanism 2 is located between the lens 100a and the housing 1. The electrostatic drive mechanism 2 includes a mover assembly 21 and a stator assembly 22. The stator assembly 22 is connected to the housing 1, and the mover assembly 21 is connected to the lens 100a. The mover assembly 21 and the stator assembly 22 are spaced apart. When either the stator assembly 22 or the mover assembly 21 is energized, the mover assembly 21 drives the lens 100a to move.

[0034] It should be noted that the camera module 100 is part of the electronic device, and the camera function of the electronic device is realized by the camera module 100. The shooting performance of the camera module 100 directly determines the image quality.

[0035] In this embodiment, the camera module 100 includes a lens 100a, which serves to converge light.

[0036] In this embodiment, the camera module 100 further includes a motor 100b, and a lens 100a is disposed on the motor 100b for driving the lens 100a to stabilize the image, thereby enabling the camera module 100 to have an image stabilization function. The motor 100b includes a housing 1 and an electrostatic drive mechanism 2. The housing 1 has a receiving cavity 10, and the electrostatic drive mechanism 2 and the lens 100a are disposed within the receiving cavity 10. It should be noted that the shape, size, and position of the receiving cavity 10 can be set according to actual needs. For example, the receiving cavity 10 can be a circular cavity or a cylindrical cavity, etc., and is not limited here.

[0037] In this embodiment, the electrostatic drive mechanism 2 utilizes electrostatic attraction to achieve drive, which is highly efficient and easy to control. The electrostatic drive mechanism 2 includes a mover assembly 21 and a stator assembly 22. The stator assembly 22 is connected to the housing 1, and the mover assembly 21 is connected to the lens 100a. The mover assembly 21 and the stator assembly 22 are spaced apart. When energized, an electrostatic force is formed between the stator assembly 22 and the mover assembly 21, causing the mover assembly 21 to move relative to the stator assembly 22, thereby driving the lens 100a to move, thus achieving focusing and image stabilization functions.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, specifically, the electrostatic drive mechanism 2 includes a mover assembly 21 and two stator assemblies 22. The mover assembly 21 is disposed between the two stator assemblies 22. When a voltage is applied between the mover assembly 21 and the stator assembly 22, a non-uniform electric field is generated between the mover assembly 21 and the stator assembly 22. Under the action of electrostatic attraction, the mover assembly 21 will move towards the stator assembly 22 to drive the lens 100a to move to one side of the housing 1, that is, to realize the translation of the lens 100a. The direction of translation of the lens 100a is perpendicular to the axis of the lens 100a.

[0039] like Figure 1 and Figure 4 As shown, specifically, the electrostatic drive mechanism 2 includes a mover assembly 21 and a stator assembly 22. The stator assembly 22 has a first end and a second end. When different voltages are applied to the first end and the second end of the stator assembly 22, it can be understood that the electric fields applied to the first end and the second end are opposite. When a single voltage is applied to the mover assembly 21, the mover assembly 21 will rotate under the action of electrostatic attraction to drive the lens 100a to rotate.

[0040] In this embodiment of the application, the moving part assembly 21 is connected to the lens 100a. The lens 100a can also be connected to the moving part assembly 21 through other components. For example, the lens 100a can be connected to the moving part assembly 21 through a lens barrel; or, the lens 100a can be directly connected to the moving part assembly 21. With this configuration, at least a part of the moving part assembly 21 can act as a lens barrel to carry the lens 100a.

[0041] In the camera module 100 provided in this application embodiment, the motor 100b includes an electrostatic drive mechanism 2, which includes a stator assembly 22 and a mover assembly 21. When either the stator assembly 22 or the mover assembly 21 is energized, an electrostatic force is generated between them. This electrostatic force drives the mover assembly 21 to move the lens 100a, thereby achieving focusing and image stabilization of the lens 100a. Furthermore, the electrostatic drive is highly efficient and easy to control. In addition, since the stator assembly 22 and the mover assembly 21 use electrostatic force, compared to electromagnetic drive, the volume of the motor 100b's drive structure is reduced, thus lowering the overall space occupied by the motor 100b and reducing the spatial size of the camera module 100. This facilitates miniaturization of the camera module 100 and improves the user experience.

[0042] See also Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the moving part and lens of the camera module according to an embodiment of this application; Figure 6This is a schematic diagram of the stator assembly and housing of the camera module according to an embodiment of this application.

[0043] In some alternative embodiments, such as Figure 1 , Figure 5 and Figure 6 As shown, the mover assembly 21 includes a first conductive cylinder 211 and a mover 212. The lens 100a is disposed inside the first conductive cylinder 211 and connected to the first conductive cylinder 211. The mover 212 is disposed on the side of the first conductive cylinder 211 facing the stator assembly 22. When the mover 212 is energized through the first conductive cylinder 211, an electrostatic force is generated between the stator assembly 22 and the mover assembly 21, which drives the lens 100a to move through the first conductive cylinder 211.

[0044] In this embodiment, the mover assembly 21 includes a first conductive cylinder 211 and a mover 212. The lens 100a is embedded in the first conductive cylinder 211, and the mover 212 is disposed on the outside of the first conductive cylinder 211, that is, on the side of the first conductive cylinder 211 facing the stator assembly 22. This allows the mover 212 and the stator assembly 22 to be correspondingly positioned to generate electrostatic force. The first conductive cylinder 211 drives the lens 100a to move relative to the stator assembly 22, thereby realizing the movement of the lens 100a. Specifically, the movement of the lens 100a includes rotation or translation. Moreover, the mover 212 is electrically connected to the first conductive cylinder 211, enabling the circuit inside the camera module 100 to be connected. Therefore, an electric field is applied to the mover 212 of the mover assembly 21 through the first conductive cylinder 211.

[0045] Optionally, the first conductive cylinder 211 may be made of conductive components such as circuit boards and coils.

[0046] Specifically, the first conductive cylinder 211 is fixedly connected to the lens 100a and can drive the lens 100a to move.

[0047] Optionally, the first conductive cylinder 211 and the lens 100a are bonded together with conductive adhesive.

[0048] Specifically, the first conductive cylinder 211 is fixedly connected to the mover 212, and the first conductive cylinder 211 and the mover 212 move synchronously.

[0049] Optionally, the first conductive cylinder 211 and the mover 212 are bonded together with conductive adhesive.

[0050] In this embodiment, the mover 212 is connected to the first conductive cylinder 211 and is a flange extending radially along the first conductive cylinder 211. The mover 212 can be strip-shaped, column-shaped, plate-shaped, etc. Optionally, the mover 212 is a rectangular plate.

[0051] In these optional embodiments, the mover assembly 21 includes a first conductive cylinder 211 and a mover 212. The first conductive cylinder 211 can not only act as a lens barrel in the lens 100a to protect the lens 100a, but also serve as a conductive element for the electrical connection of the mover 212. This can greatly reduce the size of the camera module 100, thereby facilitating the miniaturization of the camera module 100.

[0052] In some optional embodiments, the stator assembly 22 includes a plurality of stators 221, one end of which is connected to the housing 1, and the other end of which extends toward the lens 100a. The stator 221 is a conductive structure. The mover assembly 21 includes a plurality of movers 212, one end of which is connected to the lens 100a, and the other end of which extends away from the lens 100a. The mover 212 is a conductive structure. Each mover 212 is sandwiched between two adjacent stators 221.

[0053] In this embodiment of the application, the stator assembly 22 includes a stator 221, wherein the stator assembly 22 may be only the stator 221. The stator 221 is directly connected to the housing 1. One end of the stator 221 is connected to the housing 1, and the other end of the stator 221 extends toward the lens 100a. The housing 1 is provided with conductive components for applying an electric field to the stator 221.

[0054] In other embodiments of this application, the stator assembly 22 further includes a connector, through which the stator 221 is connected to the housing 1 so that the stator 221 is electrically conductive through the connector.

[0055] In this embodiment of the application, the mover assembly 21 includes a plurality of movers 212. One end of the mover 212 is connected to the lens 100a, and the other end of the mover 212 extends away from the lens 100a. The other end of the stator 221 extends toward the lens 100a, and the other end of the mover 212 is sandwiched between the other ends of two adjacent stators 221.

[0056] In this embodiment, the stator 221 is connected to the outer casing 1 and extends toward the mover 212 in the direction relative to the outer casing 1. The stator 221 can be strip-shaped, column-shaped, plate-shaped, etc.

[0057] Specifically, the stator 221 is fixedly connected to the outer casing 1.

[0058] Optionally, the stator 221 and the housing 1 are bonded together with conductive adhesive.

[0059] In some alternative embodiments, the length of the stator 221 is greater than the length of the mover 212 along the circumference of the lens 100a, such that when the stator assembly 22 or the mover assembly 21 is energized, the mover assembly 21 drives the lens 100a to rotate.

[0060] In this embodiment of the application, the length of the stator 221 along the circumferential direction of the lens 100a is greater than the length of the mover 212 along the lens 100a. When the stator assembly 22 or the mover assembly 21 is energized, a first electrostatic force is formed between the stator assembly 22 and the mover assembly 21. Under the action of the first electrostatic force, the mover assembly 21 drives the lens 100a to rotate.

[0061] For example, the stator assembly 22 includes at least two stators 221, which are spaced apart along the axial direction of the lens 100a. Each stator 221 extends circumferentially along the lens 100a and has a first end and a second end in the circumferential direction. The mover assembly 21 includes at least one mover 212, which is disposed between two adjacent stators 221. When different voltages are applied to the first and second ends of the stators 221 and a single voltage is applied to the mover 212, the mover assembly 21 rotates under the action of electrostatic attraction and drives the lens 100a to rotate.

[0062] In this embodiment, the magnitude of the voltage applied to the stator 221 and the mover 212 can be adjusted according to the rotation speed and rotation angle of the lens 100a.

[0063] In some alternative embodiments, the length of the stator 221 is greater than the length of the mover 212 along the extension direction of the stator 221, such that when the stator assembly 22 or the mover assembly 21 is energized, the mover assembly 21 drives the lens 100a to move closer to or away from the housing 1.

[0064] In this embodiment, along the extension direction of the stator 221, the length of the stator 221 is greater than the length of the mover 212. When the stator assembly 22 or the mover assembly 21 is energized, a second electrostatic force is formed between the stator assembly 22 and the mover assembly 21. Under the action of the second electrostatic force, the mover assembly 21 drives the lens 100a to move closer to or further away from the outer casing 1, that is, the mover 212 drives the lens 100a to move in multiple directions.

[0065] For example, the stator assembly 22 includes at least two stators 221, which are spaced apart along the axial direction of the lens 100a. The mover assembly 21 includes at least one mover 212, which is disposed between two adjacent stators 221. Along the extending direction of the stator 221, the length of the stator 221 is greater than the length of the mover 212. When a voltage is applied to at least one of the stator assembly 22 and the mover assembly 21, a non-uniform electric field is generated between the stator assembly 22 and the mover assembly 21. Under the action of electrostatic attraction, the mover assembly 21 drives the lens 100a to move closer to or away from the side of the housing 1, thereby realizing the translation of the lens 100a.

[0066] Optionally, multiple stators 221 are disposed at different positions on the housing 1, thereby enabling multi-angle translation of the lens 100a.

[0067] In these alternative embodiments, by designing the electrostatic drive mechanism 2 in multiple ways, the camera module 100 can achieve focal length diversification and image stabilization, that is, the lens 100a can not only be translated, but also rotated.

[0068] In some alternative embodiments, such as Figure 1 , Figure 5 and Figure 6 As shown, the stator assembly 22 includes a stator 221 and a second conductive cylinder 222. The stator 221 is disposed on the side of the second conductive cylinder 222 facing the mover assembly 21. The stator 221 is connected to the outer casing 1 through the second conductive cylinder 222. When the stator 221 is energized through the second conductive cylinder 222, an electrostatic force is generated between the stator assembly 22 and the mover assembly 21 to drive the lens 100a to move.

[0069] For example, the mover assembly 21 includes a first conductive cylinder 211 and a mover 212, and the stator assembly 22 includes a second conductive cylinder 222 and a stator 221. The second conductive cylinder 222 is disposed inside the first conductive cylinder 211, and the second conductive cylinder 222 moves relative to the first conductive cylinder 211. The mover 212 and the stator 221 are disposed in the gap between the second conductive cylinder 222 and the first conductive cylinder 211, wherein the first conductive cylinder 211 and the second conductive cylinder 222 move relative to each other when an electrostatic force is formed between the stator 221 and the mover 212.

[0070] Optionally, the second conductive cylinder 222 may be made of conductive components such as circuit boards and coils.

[0071] Specifically, the second conductive cylinder 222 is fixedly connected to the outer casing 1.

[0072] Optionally, the second conductive cylinder 222 is bonded to the outer casing 1 with conductive adhesive.

[0073] Specifically, the second conductive cylinder 222 is fixedly connected to the stator 221.

[0074] Optionally, the second conductive cylinder 222 is bonded to the stator 221 with conductive adhesive.

[0075] In these alternative embodiments, by providing a stator 221 and a second conductive cylinder 222, with the stator 221 located inside the second conductive cylinder 222, it will not come into contact with other metal structural components, thus preventing leakage.

[0076] See also Figure 7 , Figure 7This is a schematic diagram of the moving part and the stator part of the camera module according to an embodiment of this application.

[0077] In some alternative embodiments, such as Figure 7 As shown, the stator assembly 22 includes a first stator group 22a and a second stator group 22b. The first stator group 22a includes a plurality of first stators 221a, which are spaced apart along the optical axis of the lens 100a. The second stator group 22b includes a plurality of second stators 221b, which are spaced apart along the optical axis of the lens 100a. The mover assembly 21 includes a plurality of movers 212. A portion of the plurality of movers 212 is inserted between two adjacent first stators 221a, and another portion of the plurality of movers 212 is inserted between two adjacent second stators 221b. When the first stator group 22a is energized or the mover assembly 21 inserted in the first stator group 22a is energized, the first stator group 22a drives the mover assembly 21 to rotate the lens 100a. When the second stator group 22b is energized or the mover assembly 21 inserted in the second stator group 22b is energized, the second stator group 22b drives the mover assembly 21 to move the lens 100a closer to or away from the housing 1.

[0078] In this embodiment, the stator assembly 22 includes a first stator group 22a and a second stator group 22b. The first stator group 22a includes a plurality of first stators 221a, which are equidistantly spaced along the optical axis of the lens 100a, or may be unequally spaced. The second stator group 22b includes a plurality of second stators 221b, which are equidistantly spaced along the optical axis of the lens 100a, or may be unequally spaced. The structures of the first stators 221a and the second stators 221b are different. The mover assembly 21 includes a plurality of movers 212, a portion of which is inserted between two adjacent first stators 221a, and another portion of which is inserted between two adjacent second stators 221b. This can be understood as follows: a portion of the multiple movers 212 are used to form a first electrostatic force with the first stator 221a, and the first stator group 22a drives the mover assembly 21 to rotate the lens 100a; another portion of the multiple movers 212 are used to form a second electrostatic force with the second stator 221b, and the second stator group 22b drives the mover assembly 21 to move the lens 100a closer to or away from the housing 1, thereby achieving focal length diversification of the camera module 100.

[0079] Optionally, the mover assembly 21 includes a plurality of movers 212, each mover 212 having the same structure, in order to simplify the manufacturing process of the movers 212.

[0080] In this embodiment of the application, the stator assembly 22 includes a first stator group 22a and a second stator group 22b, wherein the number of first stator groups 22a can be one or more, and the number of second stator groups 22b can be one or more.

[0081] In the embodiments of this application, the first stator group 22a includes at least two first stators 221a, and the first stators 221a in each first stator group 22a have the same structure. Similarly, the second stator group 22b includes at least two second stators 221b, and the second stators 221b in each second stator group 22b have the same structure.

[0082] In this embodiment, the mover assembly 21 includes multiple mover groups, the number of which is the same as the sum of the number of the first stator group 22a and the second stator group 22b. The number of movers 212 in each mover group is less than the number of the first stator 221a in the first stator group 22a or the number of the second stator 221b in the second stator group 22b. This achieves that a mover 212 is provided between two adjacent first stators 221a and between two adjacent second stators 221b, thereby forming a stable electrostatic force between the first stator 221a and the mover 212, and between the second stator 221b and the mover 212.

[0083] For example, the stator assembly 22 includes N stator groups, each stator group including M stators 221, and the mover assembly 21 includes N mover groups, each mover group including M-1 movers 212.

[0084] In these optional embodiments, the stator assembly 22 includes a first stator group 22a and a second stator group 22b. When the first stator group 22a is energized or the mover assembly 21 inserted into the first stator group 22a is energized, the first stator group 22a drives the mover assembly 21 to rotate the lens 100a. When the second stator group 22b is energized or the mover assembly 21 inserted into the second stator group 22b is energized, the second stator group 22b drives the mover assembly 21 to move the lens 100a closer to or away from the housing. This enables the lens 100a to translate and rotate, improving the accuracy of the lens 100a's movement and resulting in better imaging quality of the camera module 100.

[0085] See also Figure 8 , Figure 8 This is a schematic diagram of the stator assembly of the camera module according to an embodiment of this application.

[0086] In some alternative embodiments, such as Figure 7 and Figure 8As shown, the stator assembly 22 includes multiple first stator groups 22a and multiple second stator groups 22b. The multiple first stator groups 22a are disposed circumferentially on the inner side of the housing 1 along the lens 100a, and the multiple second stator groups 22b are disposed circumferentially on the inner side of the housing 1 along the lens 100a. The first stator groups 22a and the second stator groups 22b are alternately disposed on the inner side of the housing 1. An array of multiple first stators 22a and multiple second stators 22b is disposed on the inner side of the housing 1.

[0087] In this embodiment, the stator assembly 22 includes S first stator groups 22a and K second stator groups 22b. The S first stator groups 22a are arranged circumferentially on the inner side of the housing 1 along the lens 100a, and the K second stator groups 22b are arranged circumferentially on the inner side of the housing 1 along the lens 100a. The first stator groups 22a and the second stator groups 22b are alternately distributed. The number of S and K may be equal or unequal. The array of multiple first stators 221a and multiple second stators 221b is arranged on the inner side of the housing 1. It can be understood that when the housing 1 is unfolded, the housing 1 presents a rectangular structure, each first stator group 22a includes multiple first stators 221a, and each second stator group 22b includes multiple second stators 221b. The first stators 221a and the second stators 221b are arranged in rows and columns on the inner side of the housing 1.

[0088] When the first stator group 22a is energized, all S first stator groups 22a can be energized, or only some of the S first stator groups 22a can be energized. When the second stator group 22b is energized, all K second stator groups 22b can be energized, with different amounts of electricity applied to each second stator group 22b. Alternatively, only some of the K second stator groups 22b can be energized to achieve translation of the lens 100a to one side of the outer casing 1.

[0089] For example, the stator assembly 22 includes eight first stator groups 22a and eight second stator groups 22b. The first stator groups 22a and the second stator groups 22b are alternately arranged inside the housing 1. When all eight first stator groups 22a are energized, a first electrostatic force is formed between the stator 221 and the mover 212 of the first stator group 22a. The mover assembly 21 drives the lens 100a to rotate clockwise or counterclockwise by a certain angle. When one second stator group 22b is energized, a second electrostatic force is formed between the stator 221 and the mover 212 of the second stator group 22b. The mover assembly 21 drives the lens 100a to translate closer to the energized second stator group 22b.

[0090] In these alternative embodiments, multi-angle translation and rotation of the lens 100a can be achieved, further improving the accuracy of the movement of the lens 100a.

[0091] In some alternative embodiments, in the circumferential direction of the lens 100a, the length of the first stator 221a is greater than the length of the mover 212, and the length of the second stator 221b is equal to the length of the mover 212. The second stator 221b extends toward the lens 100a, and along the extending direction of the second stator 221b, the length of the second stator 221b is greater than the length of the mover 212.

[0092] In this embodiment of the application, in the circumferential direction of the lens 100a, the length of the first stator 221a of the first stator group 22a is greater than the length of the mover 212. When an electric field is applied to the first stator 221a, the two ends of the first stator 221a are equipped with batteries of different polarities. As a result, the mover 212, after being energized, moves to one end of the first stator 221a by electrostatic adsorption, so as to realize that the mover assembly 21 drives the lens 100a to rotate clockwise or counterclockwise.

[0093] Optionally, the second stator 221b has an arc-shaped structure, and the mover 212 has a rectangular structure.

[0094] In this embodiment, the second stator 221b extends toward the lens 100a. Along the extension direction of the second stator 221b, the length of the second stator 221b is greater than the length of the mover 212. When a voltage is applied to at least one of the second stator 221b and the mover 212, under the action of electrostatic attraction, the area of ​​the mover 212 between the two second stators 221b gradually increases. It can also be understood that the mover 212 drives the lens 100a to move closer to or away from the outer shell, that is, the lens 100a is translated.

[0095] Optionally, the second stator and the mover 212 of the second stator group 22b have a rectangular structure, the second stator 221b extends toward the lens 100a, and the length of the second stator 221b is greater than the length of the mover 212 along the extension direction of the second stator 221b.

[0096] In these alternative embodiments, by adjusting the structural differences between the first stator 221a and the mover 212, and between the second stator 221b and the mover 212, the lens 100a can be translated or rotated. Through simple structural changes, a multi-mode anti-shake function can be achieved.

[0097] In some optional embodiments, the camera module 100 includes a lens 100a, a motor 100b, and a photosensitive chip 100c. The motor 100b includes a first conductive cylinder 211, a base 23, and a flat circuit board. The flat circuit board is disposed on the base 23. The lens 100a is connected to the first conductive cylinder 211, and the lens 100a is disposed opposite to the photosensitive chip 100c. The photosensitive chip 100c and the first conductive cylinder 211 are connected to the flat circuit board, and the flat circuit board is electrically connected to the photosensitive chip 100c and the first conductive cylinder 211.

[0098] See also Figure 9 , Figure 9 This is a schematic diagram of the moving part and the base of the camera module according to an embodiment of this application.

[0099] In some other alternative embodiments, such as Figure 1 and Figure 9 As shown, the camera module 100 also includes a photosensitive chip 100c. The motor 100b also includes a base 23, with the photosensitive chip 100c and the lens 100a respectively disposed on both sides of the base 23. The first conductive cylinder 211 includes a cylindrical circuit board, with the photosensitive chip electrically connected to the first conductive cylinder 211 via the base 23, and the first conductive cylinder 211 electrically connected to an external circuit via the base 23.

[0100] In this embodiment, the camera module 100 may further include a photosensitive chip 100c, which is the light-sensitive part of the camera module 100 and can sense light to achieve framing and shooting. The photosensitive chip 100c is disposed opposite to the lens 100a, so that the photosensitive chip 100c can achieve light sensing and framing through the lens 100a. Moreover, the photosensitive chip 100c performs the function of converting light signals into electrical signals.

[0101] In this embodiment, the base 23 serves as a component of the motor 100b, and other components can be directly or indirectly mounted on the base 23. Examples include the housing 1, the first conductive cylinder 211, and the photosensitive chip 100c. Furthermore, the base 23 also serves as a conductive component of the motor 100b to ensure electrical connection between the motor 100b and an external circuit. The photosensitive chip 100c and the lens 100a are respectively located on both sides of the base 23.

[0102] In this embodiment, the camera module 100 includes a lens 100a, a motor 100b, and a photosensitive chip 100c. The motor 100b includes a first conductive cylinder 211 and a base 23. The first conductive cylinder 211 includes a cylindrical circuit board. The photosensitive chip is electrically connected to the cylindrical circuit board via the base 23, and the cylindrical circuit board is electrically connected to an external circuit via the base 23. Because the first conductive cylinder 211 includes a cylindrical circuit board, it not only supports and connects the stator 221 and carries the lens 100a, but also has a certain conductive function, replacing the flat circuit board and saving the use of the flat circuit board. This reduces the overall volume occupied by the camera module 100, which is beneficial for the miniaturization of electronic products.

[0103] In some alternative embodiments, such as Figure 1 and Figure 9 As shown, the first conductive cylinder 211 includes a first circuit board 2111 and a second circuit board 2112. The mover 212 is connected to the first circuit board 2111. The first circuit board 2111 is connected to the base 23 through the second circuit board 2112. The first circuit board 2111 has a cylindrical structure and the second circuit board 2112 has a cylindrical structure.

[0104] In this embodiment, the first conductive cylinder 211 includes a first circuit board 2111 and a second circuit board 2112. Both the first circuit board 2111 and the second circuit board 2112 are cylindrical structures, and the second circuit board 2112 is disposed at the end of the first circuit board 2111 facing the base 23. The first circuit board 2111 is connected to the base 23 through the second circuit board 2112. The lens 100a is embedded inside the first circuit board 2111, and the mover 212 is disposed outside the first circuit board 2111.

[0105] Optionally, the structural strength of the first circuit board 2111 is greater than that of the second circuit board 2112, so that the first circuit board 2111 can stably support the mover 212 and the lens 100a. Moreover, the first conductive cylinder 211 drives the lens 100a to move relative to the stator assembly 22, and the second circuit board 2112 has a certain degree of flexibility, which can realize the rotation and translation of the lens 100a through its own deformation.

[0106] In these alternative embodiments, the first circuit board 2111 provides support for the lens 100a and the mover 212, and the second circuit board 2112 connects the first circuit board 2111 and the base 23. The first circuit board 2111 and the second circuit board 2112 can also serve as conductive components for the electrical connection of the mover 212, which not only reduces the manufacturing cost of the motor 100b, but also reduces the space occupied by the camera module 100.

[0107] In some alternative embodiments, the first circuit board 2111 is a cylindrical rigid circuit board. The second circuit board 2112 is a cylindrical flexible circuit board.

[0108] Optionally, the first circuit board 2111 and the second circuit board 2112 are connected by conductive adhesive.

[0109] In some alternative embodiments, the second conductive cylinder 222 is a cylindrical rigid circuit board.

[0110] In this embodiment, the second conductive cylinder 222 is a cylindrical rigid circuit board, which forms a nested structure with the first circuit board 2111. The stator 221 is disposed on the inner side of the rigid circuit board, and the outer side of the circuit board is connected to the outer shell 1 by conductive adhesive. The outer shell 1 is provided with conductive components, and the rigid circuit board is electrically connected to the base 23 by conductive adhesive.

[0111] In some alternative embodiments, the lens 100a contacts the inner wall of the first conductive cylinder 211.

[0112] In these optional embodiments, the first conductive cylinder 211 functions as a lens barrel, with the lens 100a directly connected to the inner surface of the first conductive cylinder 211 to protect the lens 100a. Furthermore, the use of a lens barrel is eliminated by incorporating the first conductive cylinder 211, saving manufacturing costs and reducing the overall size of the camera module 100, which is beneficial for the miniaturization of electronic products.

[0113] The electronic device provided in this application embodiment includes the camera module 100 provided in the above embodiment.

[0114] In this embodiment of the application, the electronic device may be a mobile phone, tablet computer, laptop computer, handheld computer, vehicle electronic device, wearable device, ultra-mobile personal computer (UMPC), netbook, or personal digital assistant (PDA), etc.

[0115] Other configurations and operations of the electronic devices according to embodiments of this application are known to those skilled in the art and will not be described in detail here. In this specification, references to terms such as "one embodiment," "some embodiments," "exemplarily," and "in embodiments of this application" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0116] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A camera module, characterized in that, include: lens; A motor includes a housing and an electrostatic drive mechanism. The housing has a receiving cavity, and the electrostatic drive mechanism and the lens are disposed within the receiving cavity. The electrostatic drive mechanism is located between the lens and the housing. The electrostatic drive mechanism includes a mover assembly and a stator assembly. The stator assembly is connected to the housing, and the mover assembly is connected to the lens. The mover assembly and the stator assembly are spaced apart. The stator assembly includes multiple stators, one end of which is connected to the housing, and the other end of which extends toward the lens. The stator is a conductive structure. The mover assembly includes multiple movers, one end of which is connected to the lens, and the other end of which extends away from the lens. The movers are conductive structures. Each mover is sandwiched between two adjacent stators. Along the circumference of the lens, the length of the stator is greater than the length of the mover. When the stator assembly or the mover assembly is energized, the mover assembly drives the lens to rotate.

2. The camera module according to claim 1, characterized in that, The moving part assembly includes a first conductive cylinder and a moving part, the lens is disposed inside the first conductive cylinder and connected to the first conductive cylinder, and the moving part is disposed on the side of the first conductive cylinder facing the stator assembly; When the mover is energized through the first conductive cylinder, an electrostatic force is generated between the stator assembly and the mover assembly, which drives the lens to move through the first conductive cylinder.

3. The camera module according to claim 1, characterized in that, Along the extension direction of the stator, the length of the stator is greater than the length of the mover, such that when the stator assembly or the mover assembly is energized, the mover assembly drives the lens to move closer to or away from the housing.

4. The camera module according to claim 1, characterized in that, The stator assembly includes a stator and a second conductive cylinder. The stator is disposed on the side of the second conductive cylinder facing the rotor assembly, and the stator is connected to the outer casing through the second conductive cylinder. When the stator is energized through the second conductive cylinder, the electrostatic force generated between the stator assembly and the mover assembly drives the lens to move.

5. The camera module according to claim 1, characterized in that, The stator assembly includes a first stator group and a second stator group. The first stator group includes a plurality of first stators, which are spaced apart along the optical axis of the lens. The second stator group includes a plurality of second stators, which are spaced apart along the optical axis of the lens. The mover assembly includes a plurality of movers, a portion of which is inserted between two adjacent first stators, and another portion of which is inserted between two adjacent second stators; When the first stator group is energized or the moving part inserted into the first stator group is energized, the first stator group drives the moving part to rotate the lens. When the second stator group is energized or the mover assembly inserted into the second stator group is energized, the second stator group drives the mover assembly to move the lens closer to or away from the housing.

6. The camera module according to claim 5, characterized in that, The stator assembly includes a plurality of first stator groups and a plurality of second stator groups. The plurality of first stator groups are disposed on the inner side of the housing along the circumference of the lens, and the plurality of second stator groups are disposed on the inner side of the housing along the circumference of the lens. The first stator groups and the second stator groups are alternately disposed on the inner side of the housing. The plurality of first stators and the plurality of second stator arrays are disposed on the inner side of the housing.

7. The camera module according to claim 5, characterized in that, In the circumferential direction of the lens, the length of the first stator is greater than the length of the mover, and the length of the second stator is equal to the length of the mover; The second stator extends toward the lens, and along the extension direction of the second stator, the length of the second stator is greater than the length of the mover.

8. The camera module according to claim 2, characterized in that, It also includes a photosensitive chip; the motor also includes a base, with the photosensitive chip and the lens respectively disposed on both sides of the base; The first conductive cylinder includes a cylindrical circuit board, the photosensitive chip is electrically connected to the first conductive cylinder through the base, and the first conductive cylinder is electrically connected to an external circuit through the base.

9. The camera module according to claim 2, characterized in that, The lens is in contact with the inner wall of the first conductive cylinder.

10. An electronic device, characterized in that, Includes the camera module as described in any one of claims 1 to 9.

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