Camera module and electronic equipment

Abstract

The invention provides a camera module and electronic equipment, and belongs to the technical field of electronics. The camera module comprises an actuator, an optical lens and a photosensitive component, an optical lens in the actuator is connected with a first mover part, a photosensitive assembly is connected with a stator part, the first mover part is movably connected with a second mover part, and the second mover part is movably connected with the stator part. The detection assembly comprises at least one capacitor structure, and the at least one capacitor structure is located between the first mover part and the second mover part and / or between the second mover part and the stator part; and when the first mover part and the second mover part mutually move and / or the second mover part and the stator part mutually move, the capacitance value of the at least one capacitor structure changes. Closed-loop focusing and closed-loop anti-shake of the camera module are realized by using the detection assembly, the structure is simple, the cost is low, and miniaturization and microminiaturization development of the camera module is facilitated.

Description

Technical Field

[0001] The present invention relates to the field of electronic technology, and in particular to a camera module and electronic equipment. Background Art

[0002] With the advancement of technology, the cameras in mobile phones now have motors inside to drive the lens to achieve fast and stable focus. These motors are divided into AF (Auto Focus) motors with only autofocus function and OIS (Optical Image Stabilization) motors with both anti-shake effect and anti-shake effect, depending on whether they have anti-shake effect.

[0003] These motors usually use Hall devices to sense the position of the lens, thereby achieving closed-loop control of the camera over the lens. However, this method has the following problems: the high cost of Hall devices and the magnetic field interference and temperature drift of Hall devices. Summary of the invention

[0004] The present application provides a camera module and electronic equipment that can solve the problems of high cost, magnetic field interference, temperature drift, etc. that exist when Hall devices are used in camera motors.

[0005] The technical solution is as follows:

[0006] In one aspect, a camera module is provided, the camera module comprising: an actuator, an optical lens and a photosensitive component;

[0007] The actuator comprises a first mover part, a second mover part, a stator part and a detection assembly;

[0008] The optical lens is connected to the first movable part, the photosensitive component is connected to the stator part, the first movable part and the second movable part are movably connected along the light path of the optical lens, and the second movable part and the stator part are movably connected along a direction perpendicular to the light path;

[0009] The detection assembly comprises at least one capacitor structure, and the at least one capacitor structure is located between the first mover part and the second mover part, and / or between the second mover part and the stator part;

[0010] When the first mover part and the second mover part move with each other and / or the second mover part and the stator part move with each other, the capacitance value of the at least one capacitance structure changes.

[0011] In some embodiments, the detection assembly includes at least one first moving pole piece and at least one first fixed pole piece; the at least one first moving pole piece is located on the first moving part, the at least one first fixed pole piece is located on the second moving part, and the position of the at least one first moving pole piece is spaced opposite to the position of the at least one first fixed pole piece to form the at least one capacitor structure;

[0012] The camera module is configured such that when the first movable part drives the optical lens to move along the light input path, the relative positions of the at least one first movable pole piece and the at least one first fixed pole piece change.

[0013] In some embodiments, the detection assembly further includes at least one second moving pole piece and at least one second fixed pole piece;

[0014] The at least one second moving pole piece is located on the second moving part, the at least one second fixed pole piece is located on the stator part, and the position of the at least one second moving pole piece is spaced opposite to the position of the at least one second fixed pole piece to form the at least one capacitor structure;

[0015] The camera module is configured such that when the second movable part drives the first movable part and the optical lens to move in a direction perpendicular to the light path, the relative positions of the at least one second movable pole piece and the at least one second fixed pole piece change.

[0016] In some embodiments, the first mover portion includes two first drive coils, and the two first drive coils are arranged along a first direction;

[0017] The second mover part includes two first magnet assemblies and one second magnet assembly;

[0018] The two first magnet assemblies are arranged along the first direction, and each of the first magnet assemblies corresponds to a position of the driving coil; the second magnet assemblies are arranged along the second direction;

[0019] The stator portion includes at least one second drive coil, and the position of the at least one second drive coil corresponds to the position of at least one of the first magnet assembly and the second magnet assembly;

[0020] The first direction and the second direction are perpendicular to each other, and the first direction and the second direction are perpendicular to the light path respectively.

[0021] In some embodiments, the first mover portion includes a first carrier member, the second mover portion includes a second carrier member, and the stator portion includes a housing assembly;

[0022] The first carrier component is provided with a mounting hole, the optical lens is located in the mounting hole, the first carrier component is movably disposed in the second carrier component, and the second carrier component is movably disposed in the shell assembly.

[0023] In some embodiments, the at least one first moving pole piece is arranged on the first carrier member along the second direction, and the at least one first fixed pole piece is arranged on the second carrier member along the second direction;

[0024] The at least one second moving pole piece is arranged on the second carrier component along the direction of the light path, and the at least one second fixed pole piece is arranged on the housing component along the direction of the light path.

[0025] In some embodiments, the housing assembly includes a bottom housing member, the bottom housing member being located on one side of the second carrier member along the light path;

[0026] The at least one first moving pole piece is located on the outer side surface of the first carrier member along the second direction, and the at least one first fixed pole piece is located on the inner side surface of the second carrier member along the second direction;

[0027] The at least one second moving pole piece is located on the bottom surface of the second carrier component along the light path, and the at least one second fixed pole piece is located on the top surface of the second carrier component along the light path.

[0028] In some embodiments, the number of the first moving pole pieces is at least two, at least one of the at least two first moving pole pieces is spaced apart from the first fixed pole piece along the second direction, and at least one of the remaining first moving pole pieces is spaced apart from the second magnet assembly along the second direction;

[0029] and / or,

[0030] The number of the second fixed pole pieces is at least two, at least one of the at least two second fixed pole pieces is arranged opposite to the second moving pole piece along the direction where the light path is located, and at least one of the remaining second fixed pole pieces is arranged opposite to the first magnet assembly and / or the second magnet assembly along the direction where the light path is located;

[0031] In some embodiments, the at least one first fixed pole piece and the at least one second moving pole piece are located on the same side of the second carrier member, and the at least one first fixed pole piece and the at least one second moving pole piece are electrically connected.

[0032] In some embodiments, the at least one first fixed pole piece and the at least one second moving pole piece are an integrated bent sheet.

[0033] In some embodiments, the number of the second pole pieces is at least three, at least two of the at least three second pole pieces are arranged at intervals along the first direction, and at least two of the at least three second pole pieces are arranged at intervals along the second direction.

[0034] In some embodiments, the second magnet assembly and the second pole piece are respectively located on two opposite sides of the second carrier member along the second direction.

[0035] On the other hand, an electronic device is provided, which includes the camera module described in the present application.

[0036] The beneficial effects of the technical solution provided by this application include at least:

[0037] The camera module of the present application includes an actuator, an optical lens and a photosensitive component, wherein the actuator includes a first movable part, a second movable part, a stator part and a detection component, the first movable part and the second movable part are movably connected to drive the optical lens to move along the direction of the light path to achieve the focus of the camera module, the second movable part and the stator part are movably connected to drive the optical lens to move along a plane perpendicular to the light path to achieve the anti-shake of the camera module; the detection component includes at least one capacitor structure, when the first movable part or the second movable part is active, the capacitance value of at least one capacitor structure can be changed, so that the relative position between the optical lens and the photosensitive component can be determined, so that the closed-loop focus and closed-loop anti-shake of the camera module can be achieved;

[0038] The detection component has a simple structure and low cost, which is conducive to reducing the distance between the first mover part, the second mover part and the stator part, and is conducive to reducing the overall size of the actuator, which is conducive to the miniaturization and micro-miniaturization of the camera module. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 is a structural schematic diagram of a camera module provided in an embodiment of the present application;

[0041] Figure 2 is a structural exploded diagram of a camera module provided in an embodiment of the present application;

[0042] Figure 3 is a structural cross-sectional view of an interface device provided in an embodiment of the present application;

[0043] Figure 4 is a schematic diagram of the structure of the detection component provided in an embodiment of the present application;

[0044] Figure 5 is another structural exploded view of the camera module provided in an embodiment of the present application;

[0045] Figure 6 This is another structural decomposition diagram of the camera module provided in the embodiment of the present application.

[0046] The reference numerals in the figures represent respectively:

[0047] A, light path; B, first direction; C, second direction;

[0048] 1. Actuator;

[0049] 11. first mover part; 111. first drive coil; 112. first carrier member; 1121. mounting hole;

[0050] 12. second mover part; 121. first magnet assembly; 122. second magnet assembly; 123. second carrier member;

[0051] 13. stator part; 131. second driving coil; 132. housing assembly; 1321. bottom housing member; 1322. top housing member;

[0052] 14. Detection assembly; 141. First moving pole piece; 142. First fixed pole piece; 143. Second moving pole piece; 144. Second fixed pole piece; 145. Detection unit;

[0053] 15. elastic member; 151. upper spring piece; 152. lower spring piece;

[0054] 16. Suspension wire;

[0055] 2. Optical lens;

[0056] 3. Photosensitive components;

[0057] 31. Circuit board; 32. Photosensitive element. DETAILED DESCRIPTION

[0058] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0059] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0060] 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 the circuit structure through physical lines such as printed circuit board (PCB) copper foil or wires that can transmit electrical signals. "Communication connection" can refer to electrical signal transmission, including wireless communication connection and wired communication connection. Wireless communication connection does not require a physical medium and does not belong to a connection relationship that limits the product structure. "Connection" and "connected" can both refer to a mechanical connection relationship or a physical connection relationship, that is, A is connected to B or A is connected to B, which can mean that there is a fastening component (such as screws, bolts, rivets, etc.) between A and B, or A and B are in contact with each other and A and B are difficult to separate.

[0061] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as commonly understood by those of ordinary skill in the art.

[0062] A Hall device is a solid-state electronic device that utilizes the Hall effect. It uses a magnetic field as a working medium and converts the motion parameters of an object into a digital voltage output, giving it sensing and switching functions.

[0063] Focal length is also called focal length. It is a measure of the convergence or divergence of light in an optical system. It refers to the distance from the center of the lens to the focus of light. Focusing is also called focusing. The process of changing the distance and position of the object through the camera focusing mechanism to make the image of the object clear is focusing.

[0064] In the camera modules of electronic devices such as mobile phones, in order to make the image of the object being photographed clear, it is necessary to adjust the distance between the lens and the photosensitive element. However, the camera module cannot be adjusted manually like a digital camera, and can only be automatically adjusted through structures such as voice coil motors. In order to achieve a closed loop for the diagonal of the camera module, a Hall device is usually used to measure the change in the magnetic induction intensity of the moving parts to detect the change in the position of the camera module lens, thereby completing the closed-loop focusing function.

[0065] However, due to the shortcomings of Hall devices such as poor anti-interference and high device cost, the use of camera modules is limited.

[0066] Therefore, the present application provides a camera module and an electronic device, which utilize a detection component to achieve closed-loop focus of the camera module. The detection component has a simple structure and low cost. The moving pole piece and the fixed pole piece can be separated by only a small distance, which is beneficial to reducing the spacing between the moving part and the stator part, which is beneficial to reducing the overall size of the actuator, and is beneficial to the miniaturization and micro-miniaturization development of the camera module.

[0067] The electronic device in the embodiment of the present application may be a mobile phone, a tablet computer, a laptop computer, a smart bracelet, a smart watch, a smart helmet, smart glasses, etc. The electronic device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, an electronic device in a 5G network, or an electronic device in a future Public Land Mobile Network (PLMN), etc., and the embodiment of the present application does not limit this.

[0068] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0069] On the one hand, combined with Figure 1-3 As shown, this embodiment provides a camera module, which includes: an actuator 1, an optical lens 2 and a photosensitive component 3.

[0070] The actuator 1 includes a first mover part 11, a second mover part 12, a stator part 13 and a detection component 14; the optical lens 2 is connected to the first mover part 11, the photosensitive component 3 is connected to the stator part 13, the first mover part 11 and the second mover part 12 are movably connected along the light path A of the optical lens 2, and the second mover part 12 and the stator part 13 are movably connected along a direction perpendicular to the light path A.

[0071] The camera module of this embodiment includes an actuator 1, an optical lens 2 and a photosensitive component 3, wherein the actuator 1 includes a first movable part 11, a second movable part 12, a stator part 13 and a detection component 14, the first movable part 11 and the second movable part 12 are movably connected to drive the optical lens 2 to move along the direction of the light path A to achieve the focus of the camera module, the second movable part 12 and the stator part 13 are movably linked to drive the optical lens 2 to move in a direction perpendicular to the light path A to achieve the anti-shake of the camera module; the detection component 14 includes at least one capacitor structure, when the first movable part 11 or the second movable part 12 is active, the capacitance value of at least one capacitor structure can be changed, so that the relative position between the optical lens 2 and the photosensitive component 3 can be determined, thereby achieving closed-loop focus and closed-loop anti-shake of the camera module.

[0072] The detection component 14 has a simple structure and low cost, which is beneficial to reducing the distance between the first mover part, the second mover part and the stator part, which is beneficial to reducing the overall size of the actuator 1 and is beneficial to the miniaturization and micro-miniaturization of the camera module.

[0073] Combination Figure 1-3 As shown, in some embodiments, the detection component 14 includes at least one first moving pole piece 141 and at least one first fixed pole piece 142; at least one first moving pole piece 141 is located on the first movable part 11, and at least one first fixed pole piece 142 is located on the second movable part 12, and the position of at least one first moving pole piece 141 and the position of at least one first fixed pole piece 142 are spaced relative to each other to form at least one capacitor structure.

[0074] The number of the first moving pole pieces 141 and the number of the first fixed pole pieces 142 may be the same or different, and the number of each pole piece may be one, two, three, etc.

[0075] In addition, it should be noted that the position of at least one first moving pole piece 141 and the position of at least one first fixed pole piece 142 are spaced relative to each other, which does not limit the first moving pole piece 141 and the first fixed pole piece 142 to a one-to-one correspondence, and the two can be one-to-many, or many-to-one.

[0076] The camera module is configured such that when the first movable part 11 drives the optical lens 2 to move along the light path to realize the focusing function of the camera module, the relative positions of at least one first movable pole piece 141 and at least one first fixed pole piece 142 change. Exemplarily, the first movable pole piece 141 and the first fixed pole piece 142 are arranged on the first movable part 11 and the second movable part 12, respectively. During the focusing process, the distance between the first movable part 11 and the second movable part 12 remains unchanged, and the facing area of ​​the first movable pole piece 141 and the first fixed pole piece 142 changes with the movement of the first movable part 11.

[0077] The detection component 14 of this embodiment has a simple structure and low cost. The moving pole piece and the fixed pole piece can be separated by only a small distance, which is beneficial to reducing the spacing between the first mover part 11, the second mover part 12 and the stator part 13, which is beneficial to reducing the overall size of the actuator 1 and is beneficial to the miniaturization and micro-miniaturization of the camera module.

[0078] Combination Figure 1-3 As shown, in some embodiments, the camera module also includes: at least one second moving pole piece 143 and at least one second fixed pole piece 144; at least one second moving pole piece 143 is located on the second movable part 12, and at least one second fixed pole piece 144 is located on the stator part 13, and the position of at least one second moving pole piece 143 and the position of at least one second fixed pole piece 144 are spaced relative to each other to form at least one capacitor structure.

[0079] The number of the second moving pole pieces 143 and the number of the second fixed pole pieces 144 may be the same or different, and the number of each pole piece may be one, two, three, etc.

[0080] In addition, it should be noted that the position of at least one second moving pole piece 143 and the position of at least one second fixed pole piece 144 are spaced relative to each other, which does not limit the second moving pole piece 143 and the second fixed pole piece 144 to a one-to-one correspondence, and the two can be one-to-many, or many-to-one.

[0081] The camera module is configured such that when the second movable part 12 drives the first movable part 11 and the optical lens 2 to move in a direction perpendicular to the light path A to realize the anti-shake function of the camera module, the relative positions of at least one second movable pole piece 143 and at least one second fixed pole piece 144 change. Exemplarily, the second movable pole piece 143 and the second fixed pole piece 144 are arranged on the second movable part 12 and the stator part 13, respectively. During the anti-shake process, the spacing between the second movable part 12 and the stator part 13 remains unchanged, and the facing area of ​​the second movable pole piece 143 and the second fixed pole piece 144 changes with the movement of the second movable part 12.

[0082] Through the above arrangement, the detection component 14 can determine the relative positions of the optical lens 2 and the photosensitive component 3 in the direction perpendicular to the light path A by measuring the capacitance value between the second moving electrode piece 143 and the second fixed electrode piece 144, thereby realizing closed-loop anti-shake of the camera module.

[0083] Combination Figure 4As shown, in some embodiments, the detection component 14 also includes a detection unit 145, and the detection unit 145 is electrically connected to at least one first moving pole piece 141, at least one first fixed pole piece 142, at least one second moving pole piece 143 and at least one second fixed pole piece 144 respectively.

[0084] The detection unit 145 is used to detect the change in capacitance between at least one first moving pole piece 141 and at least one first fixed pole piece 142, and determine the relative position of the first mover part 11 and the second mover part 12 according to the change in capacitance; it is also used to detect the change in capacitance between at least one second moving pole piece 143 and at least one second fixed pole piece 144, and determine the relative position of the second mover part 12 and the stator part 13 according to the change in capacitance.

[0085] According to the determining formula of the capacitor device: C=εS / πkd (C is the capacitance value, ε is a constant, S is the facing area of ​​the capacitor plates, d is the distance between the capacitor plates, and k is the electrostatic force constant). When the distance d between the capacitor plates is a constant, the capacitance value of the capacitor is only proportional to the facing area S. Therefore, the position change of the movable part can be detected by the change in the capacitance value of the capacitor caused by the change in the facing area.

[0086] In this embodiment, during the focusing process, the first moving pole piece 141 only moves along the light path with the first moving sub-part 11, and the distance between the first moving pole piece 141 and the first fixed pole piece 142 (the spacing dimension in the direction perpendicular to the light path A) is a constant value, but the facing area of ​​the first moving pole piece 141 and the first fixed pole piece 142 will change with the movement of the first moving sub-part 11, and according to the determination formula of the capacitor element, it can be known that the facing area and the capacitance value are in a linear relationship. The detection unit 145 is used to detect the first moving pole piece 141 and the first fixed pole piece 142. 2, the facing area between the first moving pole piece 141 and the first fixed pole piece 142 can be determined according to the capacitance value, and because the areas of the first moving pole piece 141 and the first fixed pole piece 142 are regular shapes (for example, square, rectangle, etc.), the relative positions of the first moving pole piece 141 and the first fixed pole piece 142 in the direction of the light input path can be easily calculated, so that the relative positions of the first moving sub-part 11 and the second moving sub-part 12 in the direction of the light input path can be determined, thereby realizing closed-loop focus of the camera module.

[0087] During the anti-shake process, the second moving pole piece 143 only moves with the second movable sub-part 12 in the direction perpendicular to the light path A, and the distance between the second moving pole piece 143 and the second fixed pole piece 144 (the spacing dimension in the direction of the light input path) is a constant, but the facing area of ​​the second moving pole piece 143 and the second fixed pole piece 144 will change with the movement of the second movable sub-part 12. The detection unit 145 is used to detect the capacitance value between the second moving pole piece 143 and the second fixed pole piece 144, so as to determine the relative position of the second movable sub-part 12 and the stator part 13 in the direction perpendicular to the light path A, thereby realizing closed-loop anti-shake of the camera module.

[0088] Combination Figure 5 and Figure 6 As shown, in some embodiments, the first mover part 11 includes two first drive coils 111, and the two first drive coils 111 are arranged along a first direction B; the second mover part 12 includes two first magnet assemblies 121 and one second magnet assembly 122; the two first magnet assemblies 121 are arranged along the first direction B, and each first magnet assembly 121 corresponds to a position of a drive coil; the second magnet assembly 122 is arranged along the second direction C; the stator part 13 includes at least one second drive coil 131, and the position of at least one second drive coil 131 corresponds to the position of at least one of the first magnet assembly 121 and the second magnet assembly 122; wherein the first direction B and the second direction C are perpendicular to each other, and the first direction B and the second direction C are respectively perpendicular to the light path A.

[0089] Through the above arrangement, the first mover part 11 and the second mover part 12 are coupled by the magnetic field of the first drive coil 111 and the first magnet assembly 121 to achieve the focus drive of the camera module. Between the second mover part 12 and the stator part 13, the magnetic field of the second drive coil 131 and the first magnet assembly 121 and / or the second magnet assembly 122 is coupled to achieve the anti-shake drive of the camera module.

[0090] The second drive coil 131 may be one or more, and the second drive coil 131 may be arranged one-to-one under the first magnet assembly 121 or the second magnet assembly 122, or one-to-many under the first magnet assembly 121 or the second magnet assembly 122. Exemplarily, the second drive coil 131 is a planar coil arranged in a plane perpendicular to the light path A, and the axis of the second drive coil 131 is parallel to the direction of the light path A.

[0091] Combination Figure 5 and Figure 6 As shown, in some embodiments, the first mover portion 11 includes a first carrier member 112 , the second mover portion 12 includes a second carrier member 123 , and the stator portion 13 includes a housing assembly 132 .

[0092] The first carrier component 112 is provided with a mounting hole 1121 . The optical lens 2 is located in the mounting hole 1121 . The first carrier component 112 is movably disposed in the second carrier component 123 . The second carrier component 123 is movably disposed in the housing assembly 132 .

[0093] The first carrier component 112 is used to support the optical lens 2 and drive the optical lens 2 to move, thereby realizing the focusing function. The second carrier component 123 supports the first carrier component 112 and drives the first carrier component 112 and the optical lens 2 thereon to move, thereby realizing the anti-shake function.

[0094] In some possible implementations, the shell assembly 132 includes a bottom shell member 1321 and a top shell member 1322, and the bottom shell member 1321 and the top shell member 1322 are buckled together, and the first movable part 11 and the second movable part 12 are wrapped in the shell assembly 132, which is beneficial to improving the integration of the camera module, and utilizing the shell assembly 132 to protect and dustproof the internal structure.

[0095] Combination Figure 5 and Figure 6 As shown, in some embodiments, the actuator 1 also includes at least one elastic member 15, at least one elastic member 15 is located at one end of the movable part along the light input path, and at least one elastic member 15 is connected between the first movable part 11 and the second movable part 12.

[0096] Optionally, the elastic member 15 includes an upper elastic sheet 151 and a lower elastic sheet 152 , wherein the upper elastic sheet 151 is connected between the upper end of the first carrier member 112 and the upper end of the second carrier member 123 , and the lower elastic sheet 152 is connected between the lower end of the first carrier member 112 and the lower end of the second carrier member 123 .

[0097] Through the above arrangement, the first mover part 11 is elastically and movably connected to the second mover part 12 through the upper spring plate 151 and the lower spring plate 152. When the first drive coil 111 is energized, the first drive coil 111 will generate a coil magnetic field, and the coil magnetic field and the magnetic magnetic field generated by the first magnet assembly 121 interact with each other. The first drive coil 111 will move along the light input path and drive the optical lens 2 on the first carrier member 112 to move together. When the first drive coil 111 is de-energized, the first mover part 11 returns under the elastic force of the upper spring plate 151 and the lower spring plate 152, thereby realizing the autofocus function of the camera module.

[0098] Combination Figure 5 and Figure 6 As shown, in some embodiments, the actuator 1 also includes at least one suspension member 16, at least one suspension member 16 extends along the direction of the light input path, the upper end of at least one suspension member 16 is connected to the second mover part 12, and the lower end of at least one suspension member 16 is connected to the stator part 13.

[0099] The second mover part 12 can be movably supported above the stator part 13 by using the suspension wire 16. In this embodiment, the first drive coil 111 and the detection component 14 need to be electrically connected to the circuit structure at the bottom of the actuator 1. The suspension wire 16 is made of a conductive material. Each suspension wire 16 can transmit one electrical signal and realize the circuit connection of the first drive coil 111 and the detection component 14.

[0100] Optionally, the upper end of at least one suspension wire 16 is connected to the second carrier member 123, and the lower end of at least one suspension wire 16 is connected to the bottom shell member 1321. The number of suspension wires 16 is at least three, one of which is used for circuit connection of the two first drive coils 111, one of which is used for circuit connection of the first moving electrode plate, and one of which is used for circuit connection of the first fixed electrode plate. In addition, the circuit connection of the second moving electrode plate can use the same suspension wire 16 as the first fixed electrode plate, thereby simplifying the circuit structure in the camera module.

[0101] Combination Figure 5 and Figure 6 As shown, in some embodiments, at least one first moving pole piece 141 is arranged on the first carrier member 112 along the second direction C, and at least one first fixed pole piece 142 is arranged on the second carrier member 123 along the second direction C; at least one second moving pole piece 143 is arranged on the second carrier member 123 along the direction of the light path A, and at least one second fixed pole piece 144 is arranged on the shell assembly 132 along the direction of the light path A.

[0102] Through the above arrangement, the first moving pole piece 141 and the first fixed pole piece 142 can convert the displacement change into the capacitance change when the first carrier 112 moves in the direction of the light path A, thereby realizing the position detection of the optical lens 2 in the direction of the light path A and realizing the closed-loop focus of the camera module. The second moving pole piece 143 and the second fixed pole piece 144 can convert the displacement change into the capacitance change when the second carrier 123 moves in the direction perpendicular to the light path A, thereby realizing the position detection of the optical lens 2 in the direction perpendicular to the light path A and realizing the closed-loop anti-shake of the camera module.

[0103] Combination Figure 5 and Figure 6As shown, in some embodiments, the shell assembly 132 includes a bottom shell member 1321, which is located on one side of the second carrier member 123 along the light path A; at least one first moving pole piece 141 is located on the outer side surface of the first carrier member 112 along the second direction C, and at least one first fixed pole piece 142 is located on the inner side surface of the second carrier member 123 along the second direction C; at least one second moving pole piece 143 is located on the bottom surface of the second carrier member 123 along the light path A, and at least one second fixed pole piece 144 is located on the top surface of the second carrier member 123 along the light path A.

[0104] Through the above arrangement, the first moving pole piece 141 and the first fixed pole piece 142 form a capacitive detection structure, and the second moving pole piece 143 and the second fixed pole piece 144 form another capacitive detection structure. The camera module can realize closed-loop focusing and closed-loop anti-shake of the optical lens 2.

[0105] Combination Figure 5 and Figure 6 As shown, in some embodiments, the number of the first moving pole pieces 141 is at least two, at least one of the at least two first moving pole pieces 141 is arranged with the first fixed pole piece 142 in a second direction C, and at least one of the remaining first moving pole pieces 141 is arranged with the second magnet assembly 122 in a second direction C. After being energized, the second magnet assembly 122 has an electrical surface that is the same as or similar to that of the first fixed pole piece 142, and can form a capacitive detection structure with the first moving pole piece 141.

[0106] In this embodiment, the first moving pole piece 141 is respectively arranged on both sides of the first carrier component 112 along the second direction C, and forms a capacitive detection structure with the first fixed pole piece 142 and the second magnet assembly 122, so as to detect the active position of the first carrier component 112 on both sides symmetrically, and the detection result is more accurate.

[0107] Combination Figure 5 and Figure 6 As shown, in some embodiments, the number of the second fixed pole pieces 144 is at least two, at least one of the at least two second fixed pole pieces 144 is arranged opposite to the second moving pole piece 143 along the direction of the light path A, and at least one of the remaining second fixed pole pieces 144 is arranged opposite to the first magnet assembly 121 and / or the second magnet assembly 122 along the direction of the light path A. After being energized, the first magnet assembly 121 and the second magnet assembly 122 have the same or similar electrical surface as the second moving pole piece 143, and can form a capacitive detection structure with the second fixed pole piece 144.

[0108] In this embodiment, a capacitive detection structure is formed by using the second moving pole piece 143 arranged along the second direction C, the second magnet assembly 122, and the first magnet assembly 121 arranged along the first direction B. The active position of the second carrier component 123 along the first direction B and the second direction C can be detected respectively, thereby realizing closed-loop anti-shake in the four directions of front, back, left and right of the camera module.

[0109] Combination Figure 5 and Figure 6 As shown, in some embodiments, at least one first fixed pole piece 142 and at least one second moving pole piece 143 are located on the same side of the second carrier 123, and at least the first fixed pole piece 142 and at least one second moving pole piece 143 are electrically connected. Thus, the first fixed pole piece 142 and the second moving pole piece 143 can share a circuit, simplifying the circuit design in the camera module.

[0110] Combination Figure 5 and Figure 6 As shown, in some embodiments, at least one first fixed pole piece 142 and at least one second movable pole piece 143 are an integrated bent sheet. Through the above arrangement, the difficulty of assembling the first fixed pole piece 142 and the second movable pole piece 143 is simplified, and the assembly efficiency of the camera module is improved.

[0111] Combination Figure 6 As shown, in some embodiments, the number of second pole pieces 144 is at least three, at least two of the at least three second pole pieces 144 are arranged at intervals along the first direction B, and at least two of the at least three second pole pieces 144 are arranged at intervals along the second direction C.

[0112] Through the above arrangement, the second polarizing plate 144 can detect the active position of the second carrier component 123 along the first direction B and the second direction C, thereby realizing closed-loop anti-shake in four directions of the camera module.

[0113] In some embodiments, the second magnet assembly 122 and the second pole piece 144 are respectively located on opposite sides of the second carrier member 123 along the second direction C. By arranging the second magnet assembly 122 and the second pole piece 144 on opposite sides of the second carrier member 123 along the second direction C, at least two of the second pole pieces 144 are arranged at intervals along the first direction B, and the other at least two are arranged at intervals along the second direction C, so that the closed-loop anti-shake of the camera module in four directions of front, back, left, and right can be realized by using the second pole pieces 144 arranged on one side.

[0114] Combination Figure 3 As shown, in some embodiments, the photosensitive component 3 includes a circuit board 31 and a photosensitive element 32 , the photosensitive element 32 is electrically connected to the circuit board 31 , and the optical lens 2 is located on the photosensitive path of the photosensitive element 32 .

[0115] The camera module of this embodiment is used to capture images or videos.

[0116] In some possible implementations, the photosensitive element 32 is also called an image sensor, which may be a complementary metal oxide semiconductor (CMOS) or a charge coupled device (CCD). It may also be other types of image sensors other than CMOS or CCD, such as a charge injection device (CID).

[0117] It is understandable that for CMOS, a digital signal processor (DSP) can be integrated into CMOS. CMOS has the advantages of high integration, low power consumption, and low cost, and is more suitable for electronic devices with limited installation space, such as mobile phones.

[0118] In some possible implementations, a printed circuit is provided on the surface of the circuit board 31, and the circuit board 31 includes a printed circuit board 31 (Printed Circuit Board, PCB), a flexible printed circuit board (Flexible Printed Circuit Board, FPC), a soft-rigid combination board, etc.

[0119] In some possible implementations, the camera module may further include a flash. The flash may be a single-color temperature flash or a dual-color temperature flash. A dual-color temperature flash refers to a combination of a warm light flash and a cold light flash, which may be used for light compensation at different color temperatures.

[0120] Exemplarily, the camera module includes a front camera and a rear camera. Usually, the front camera is arranged on the front panel of the electronic device, and the rear camera is arranged on the back of the electronic device. In some embodiments, there are at least two rear cameras, which are any one of a main camera, a depth of field camera, a wide-angle camera, and a telephoto camera, so as to realize the fusion of the main camera and the depth of field camera to realize the background blur function, the fusion of the main camera and the wide-angle camera to realize the panoramic shooting and the virtual reality (VR) shooting function or other fusion shooting functions.

[0121] On the other hand, this embodiment provides an electronic device, and the electronic device includes the camera module of the present application.

[0122] The electronic device of this embodiment adopts the camera module of the present application and has all the beneficial technical effects of all the embodiments in this document.

[0123] In some possible implementations, the electronic device includes a mainboard.

[0124] In the camera module provided in this embodiment, during the shooting process, the imaging light of the object enters the optical lens 2 and then reaches the photosensitive element 32. The photons in the imaging light hit the image sensor to generate movable charges. This is the internal photoelectric effect, and the movable charges gather to form an electrical signal.

[0125] The electrical signal is transmitted to the main board through a flexible circuit board or the like. The main board is provided with an analog-to-digital converter (A / D converter) and a digital signal processor (DSP). The A / D converter converts the electrical signal into a digital signal, which is processed by the DSP and finally transmitted to the screen of the electronic device to display the image, thus realizing the shooting of the object.

[0126] In some possible implementations, the terminal device may also include a radio frequency (RF) circuit, 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 and other components.

[0127] Among them, the detection unit 145 is electrically connected to the processor. The processor is the control center of the terminal device, which uses various interfaces and lines to connect various parts of the entire mobile phone. By running or executing software programs and / or modules stored in the memory, and calling data stored in the memory, it executes various functions of the terminal device and processes data, thereby monitoring the mobile phone as a whole. 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 processes operating storage media, user interfaces, and application programs, etc., and the modem processor mainly processes wireless communications. It can be understood that the above-mentioned modem processor may not be integrated into the processor.

[0128] It should be noted that the "several" and "at least one" mentioned in this article refer to one or more, and "multiple" and "at least two" refer to two or more. "And / or" describes the association relationship of the associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0129] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0130] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0131] In the description of this specification, the reference terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application.

[0132] The above description is only an embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. A camera module, characterized in that: The camera module comprises: an actuator (1), an optical lens (2) and a photosensitive component (3); The actuator (1) comprises a first mover part (11), a second mover part (12), a stator part (13) and a detection component (14); The optical lens (2) is connected to the first movable part (11), the photosensitive component (3) is connected to the stator part (13), the first movable part (11) and the second movable part (12) are movably connected along a light path (A) of the optical lens (2), and the second movable part (12) and the stator part (13) are movably connected along a direction perpendicular to the light path (A); The detection component (14) comprises at least one capacitor structure, wherein the at least one capacitor structure is located between the first mover part (11) and the second mover part (12), and / or between the second mover part (12) and the stator part (13); When the first mover part (11) and the second mover part (12) move relative to each other and / or the second mover part (12) and the stator part (13) move relative to each other, the capacitance value of the at least one capacitance structure changes.

2. The camera module according to claim 1, characterized in that: The detection component (14) comprises at least one first moving pole piece (141) and at least one first fixed pole piece (142); the at least one first moving pole piece (141) is located on the first moving sub-part (11), the at least one first fixed pole piece (142) is located on the second moving sub-part (12), and the position of the at least one first moving pole piece (141) and the position of the at least one first fixed pole piece (142) are spaced relative to each other to form the at least one capacitor structure; The camera module is configured such that when the first movable part (11) drives the optical lens (2) to move along the direction of the light path (A), the relative positions of the at least one first movable pole piece (141) and the at least one first fixed pole piece (142) change.

3. The camera module according to claim 1 or 2, characterized in that: The detection component (14) further comprises at least one second moving pole piece (143) and at least one second fixed pole piece (144); The at least one second moving pole piece (143) is located on the second moving part (12), the at least one second fixed pole piece (144) is located on the stator part (13), and the position of the at least one second moving pole piece (143) and the position of the at least one second fixed pole piece (144) are spaced apart from each other to form the at least one capacitor structure; The camera module is configured such that when the second movable part (12) drives the first movable part (11) and the optical lens (2) to move in a direction perpendicular to the light path (A), the relative positions of the at least one second movable pole piece (143) and the at least one second fixed pole piece (144) change.

4. The camera module according to claim 3, characterized in that: The first mover part (11) comprises two first drive coils (111), and the two first drive coils (111) are arranged along a first direction (B); The second mover part (12) comprises two first magnet components (121) and one second magnet component (122); The two first magnet assemblies (121) are arranged along the first direction (B), and each of the first magnet assemblies (121) corresponds to a position of the driving coil; the second magnet assemblies (122) are arranged along the second direction (C); The stator part (13) comprises at least one second drive coil (131), and the position of the at least one second drive coil (131) corresponds to the position of at least one of the first magnet assembly (121) and the second magnet assembly (122); The first direction (B) and the second direction (C) are perpendicular to each other, and the first direction (B) and the second direction (C) are perpendicular to the light path (A) respectively.

5. The camera module according to any one of claims 1 to 4, characterized in that: The first mover part (11) comprises a first carrier member (112), the second mover part (12) comprises a second carrier member (123), and the stator part (13) comprises a housing assembly (132); The first carrier component (112) is provided with a mounting hole (1121), the optical lens (2) is located in the mounting hole (1121), the first carrier component (112) is movably disposed in the second carrier component (123), and the second carrier component (123) is movably disposed in the housing component (132).

6. The camera module according to claim 5, characterized in that: The at least one first moving pole piece (141) is arranged on the first carrier member (112) along the second direction (C), and the at least one first fixed pole piece (142) is arranged on the second carrier member (123) along the second direction (C); The at least one second moving pole piece (143) is arranged on the second carrier component (123) along the direction of the light path (A), and the at least one second fixed pole piece (144) is arranged on the housing component (132) along the direction of the light path (A).

7. The camera module according to claim 5, characterized in that: The housing component (132) comprises a bottom housing component (1321), wherein the bottom housing component (1321) is located on one side of the second carrier component (123) along the light path (A); The at least one first moving pole piece (141) is located on the outer side surface of the first carrier component (112) along the second direction (C), and the at least one first fixed pole piece (142) is located on the inner side surface of the second carrier component (123) along the second direction (C); The at least one second moving pole piece (143) is located on the bottom surface of the second carrier component (123) along the light path (A), and the at least one second fixed pole piece (144) is located on the top surface of the second carrier component (123) along the light path (A).

8. The camera module according to claim 7, characterized in that: The number of the first moving pole pieces (141) is at least two, at least one of the at least two first moving pole pieces (141) is arranged at intervals with the first fixed pole piece (142) along the second direction (C), and at least one of the remaining first moving pole pieces (141) is arranged at intervals with the second magnet assembly (122) along the second direction (C); and / or, The number of the second fixed pole pieces (144) is at least two, at least one of the at least two second fixed pole pieces (144) is arranged opposite to the second moving pole piece (143) along the direction of the light path (A), and at least one of the remaining second fixed pole pieces (144) is arranged opposite to the first magnet assembly (121) and / or the second magnet assembly (122) along the direction of the light path (A).

9. The camera module according to claim 7, characterized in that: The at least one first fixed pole piece (142) and the at least one second moving pole piece (143) are located on the same side of the second carrier member (123), and the at least one first fixed pole piece (142) and the at least one second moving pole piece (143) are electrically connected.

10. The camera module according to claim 9, characterized in that: The at least one first fixed pole piece (142) and the at least one second moving pole piece (143) are an integrated bent sheet.

11. The camera module according to claim 7, characterized in that: The number of the second pole pieces (144) is at least three, at least two of the at least three second pole pieces (144) are arranged at intervals along the first direction (B), and at least two of the at least three second pole pieces (144) are arranged at intervals along the second direction (C).

12. The camera module according to claim 11, characterized in that: The second magnet assembly (122) and the second pole piece (144) are respectively located on two opposite sides of the second carrier component (123) along the second direction (C).

13. An electronic device, characterized in that: The electronic device comprises the camera module according to any one of claims 1 to 12.

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