Camera module and electronic device

Abstract

This application belongs to the field of electronic technology and discloses a camera module and an electronic device. The camera module includes a circuit board, a mounting base, a lens assembly, and a first deformation component; the circuit board and the mounting base are connected, and an image sensor is provided on the circuit board; a first receiving cavity is provided in the mounting base, and the lens assembly is movably disposed in the first receiving cavity, with the lens assembly and the image sensor disposed opposite to each other; at least a portion of the first deformation component is disposed between the mounting base and the lens assembly along the optical axis direction of the lens assembly; the first deformation component is electrically connected to the circuit board and is used to drive the lens assembly to move along the optical axis direction.

Description

Technical Field

[0001] This application belongs to the field of electronic technology, specifically relating to a camera module and an electronic device. Background Technology

[0002] With the rapid development of electronic technology, smartphones, tablets, and other electronic devices are becoming increasingly popular and have become indispensable tools in people's daily lives. To enable shooting functions, electronic devices are usually equipped with camera modules.

[0003] Currently, with increasing demands for image quality and higher pixel counts, the size of image sensors and lens assemblies in camera modules is growing accordingly. However, when adjusting the focus of a camera module, the movement of the lens assembly along the optical axis is mainly controlled by a drive assembly that uses a permanent magnet and a coil. This drive assembly occupies a large volume, making it difficult to arrange a large lens assembly within a limited space. Summary of the Invention

[0004] This application aims to provide a camera module and electronic device that at least solves the problem that existing camera modules are difficult to arrange large-volume lens components in a limited space.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application provide a camera module, including: a circuit board, a mounting base, a lens assembly, and a first deformation assembly;

[0007] The circuit board and the mounting base are connected, and an image sensor is provided on the circuit board;

[0008] The mounting base has a first receiving cavity, and the lens assembly is movably disposed in the first receiving cavity. The lens assembly and the image sensor are disposed opposite to each other.

[0009] Along the optical axis of the lens assembly, at least a portion of the first deformation component is disposed between the mounting base and the lens assembly; the first deformation component is electrically connected to the circuit board and is used to drive the lens assembly to move along the optical axis.

[0010] According to an embodiment of this application, a camera module is provided, wherein the first deformation component includes a first elastic cavity and a first expansion ring;

[0011] The first elastic cavity is filled with a flowable medium; the first elastic cavity includes a first cavity portion and a second cavity portion, which are connected; along the optical axis of the lens assembly, the first cavity portion is disposed between the mounting base and the lens assembly;

[0012] The first tightening ring is sleeved on the peripheral wall of the second cavity, and the first tightening ring is electrically connected to the circuit board.

[0013] According to an embodiment of this application, a camera module is provided in which, when the first expansion ring is energized, the inner diameter of the first expansion ring contracts to compress the second cavity, causing the flowable medium in the second cavity to enter the first cavity, resulting in the first cavity being in an expanded state.

[0014] When the first tightening ring is de-energized, the inner diameter of the first tightening ring increases to relieve the pressure on the second cavity, so that the first cavity returns to its initial state, and the volume of the first cavity in the initial state is smaller than the volume in the expanded state.

[0015] According to an embodiment of this application, a camera module is provided in which the first cavity extends circumferentially in a ring shape relative to the optical axis of the lens assembly, and light rays passing through the lens assembly can pass through the central hole of the first cavity to reach the image sensor.

[0016] According to an embodiment of this application, a camera module is provided, wherein the first deformation component is provided in two sets; the first cavity portion of the first set of the first deformation component is disposed between the top wall of the first receiving cavity and the first surface of the lens assembly; the first cavity portion of the second set of the first deformation component is disposed between the bottom wall of the first receiving cavity and the second surface of the lens assembly.

[0017] The top and bottom walls of the first receiving cavity are opposite each other along the optical axis, and the first and second surfaces of the lens assembly are opposite each other along the optical axis.

[0018] A camera module according to an embodiment of this application further includes: a partition;

[0019] The second cavity portion of the first set of the first deformation assembly and the second cavity portion of the second set of the first deformation assembly are connected by the partition, and the partition is connected to the mounting base.

[0020] A camera module according to an embodiment of this application further includes: a second deformation component; the second deformation component is disposed in the first receiving cavity and located between the peripheral wall of the lens assembly and the side wall of the first receiving cavity; the second deformation component is electrically connected to the circuit board.

[0021] According to an embodiment of this application, a camera module is provided, wherein the second deformation component includes a second elastic cavity and a second expansion ring;

[0022] The second elastic cavity is filled with a flowable medium; the second elastic cavity includes a third cavity portion and a fourth cavity portion, and the third cavity portion and the fourth cavity portion are connected.

[0023] The third cavity is disposed between the peripheral wall of the lens assembly and the side wall of the first receiving cavity; the second tightening ring is sleeved on the peripheral wall of the fourth cavity;

[0024] The second tightening ring is electrically connected to the circuit board.

[0025] According to an embodiment of this application, a camera module is provided, wherein the mounting base includes a base and a housing;

[0026] The base and the housing are connected, and the base and the housing form the first receiving cavity; along the optical axis of the lens assembly, at least a portion of the first deformation component is disposed between at least one of the base and the housing and the lens assembly;

[0027] The circuit board and the base are connected, and the circuit board and the base form a second receiving cavity, in which the image sensor is disposed.

[0028] According to an embodiment of this application, a camera module is provided on the circuit board, wherein a plurality of image sensors are provided; a plurality of lens assemblies are provided, and the plurality of lens assemblies and the plurality of image sensors are arranged opposite to each other, and the plurality of lens assemblies are respectively movably disposed in the first receiving cavity.

[0029] Secondly, embodiments of this application provide an electronic device, including: a housing and a camera module as described in any of the preceding claims; the housing and the camera module are connected.

[0030] In the embodiments of this application, by disposing at least a portion of the first deformation component between the mounting base and the lens assembly along the optical axis direction of the lens assembly, the shape of the first deformation component can be changed by controlling the energization state of the first deformation component, thereby controlling the movement of the lens assembly along the optical axis direction to conveniently realize the focusing function of the camera module.

[0031] Compared to existing telescopic drive solutions for lens assemblies, the camera module of this application saves the space occupied by the original drive components between the peripheral wall of the lens assembly and the side wall of the first receiving cavity, enabling the arrangement of a larger volume lens assembly in a limited space, thus meeting the high-pixel shooting requirements of the camera module.

[0032] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0033] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0034] Figure 1 This is one of the schematic diagrams of a camera module according to an embodiment of this application;

[0035] Figure 2 This is a schematic diagram of a first elastic cavity according to an embodiment of this application;

[0036] Figure 3 This is a schematic diagram of a camera module according to an embodiment of the present application retracting a lens assembly via a first deformation component;

[0037] Figure 4 This is a schematic diagram of a camera module according to an embodiment of the present application extending a lens assembly via a first deformation component;

[0038] Figure 5 This is a second schematic diagram of a camera module according to an embodiment of this application;

[0039] Figure 6 This is the third schematic diagram of a camera module according to an embodiment of this application.

[0040] Figure label:

[0041] 1. Circuit board; 101. Image sensor;

[0042] 2. Mounting base; 21. Base; 22. Housing; 201. First receiving cavity; 202. Second receiving cavity; 211. Light transmission port; 221. Opening;

[0043] 3. Lens assembly; 301. Lens; 302. Carrier;

[0044] 4. First deformable component; 41. First elastic cavity; 42. First expansion ring; 411. First cavity portion; 412. Second cavity portion; 401. Elastic membrane; 402. Flowable medium;

[0045] 5. Second deformation component; 51. Second elastic bladder; 52. Second expansion ring; 511. Third cavity; 512. Fourth cavity;

[0046] 6. Partitions; 7. Filters. Detailed Implementation

[0047] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0048] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0049] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this application.

[0050] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0051] The following is combined Figures 1-6 The camera module and electronic device provided in this application will be described in detail through specific embodiments and application scenarios.

[0052] like Figure 1 As shown, a camera module according to some embodiments of this application includes: a circuit board 1, a mounting base 2, a lens assembly 3, and a first deformation assembly 4.

[0053] Circuit board 1 is connected to mounting base 2, and image sensor 101 is provided on circuit board 1. Circuit board 1 can be a printed circuit board (PCB) known in the art, and image sensor 101 can be any one of ultra-sensitive image sensor 101, black and white image sensor 101, color image sensor 101, and depth image sensor 101.

[0054] Meanwhile, the mounting base 2 has a first receiving cavity 201, and the lens assembly 3 is movably disposed in the first receiving cavity 201. The lens assembly 3 and the image sensor 101 are arranged opposite to each other. Thus, when photographing a target object, the light from the target object can reach the image sensor 101 after passing through the lens assembly 3, and the image sensor 101 can collect the light to form an image of the target object.

[0055] Furthermore, at least a portion of the first deformation component 4 is disposed between the mounting base 2 and the lens assembly 3 along the optical axis direction; the first deformation component 4 is electrically connected to the circuit board 1 and is used to drive the lens assembly 3 to move along the optical axis direction.

[0056] The first deformation component 4 can be a shape memory element such as a shape memory alloy or a liquid crystal elastomer, or a combination structure consisting of a shape memory element and associated components. In practical applications, the shape of the shape memory element changes when the power-on state changes; for example, the shape memory element can extend or shorten along the optical axis of the lens assembly 3. Since at least a portion of the first deformation component 4 is disposed between the mounting base 2 and the lens assembly 3 along the optical axis, when the shape of the first deformation component 4 changes, the first deformation component 4 drives the lens assembly 3 to move along the optical axis.

[0057] Since the mounting base 2 is usually provided with an opening 221, which is connected to the first receiving cavity 201, the lens assembly 3 in the first receiving cavity 201 can be driven to extend out of the opening 221 along the optical axis direction based on the first deformation component 4, or the lens assembly 3 can be driven to retract from the opening 221 into the first receiving cavity 201 along the optical axis direction.

[0058] In order to facilitate the placement of the lens assembly 3 and the image sensor 101 based on the mounting base 2, the mounting base 2 in this embodiment of the application includes a base 21 and a housing 22.

[0059] Specifically, the base 21 and the housing 22 are connected, and the base 21 and the housing 22 form a first receiving cavity 201; along the optical axis of the lens assembly 3, at least a portion of the first deformation component 4 is disposed between at least one of the base 21 and the housing 22 and the lens assembly 3; the circuit board 1 and the base 21 are connected, and the circuit board 1 and the base 21 form a second receiving cavity 202, and the image sensor 101 is disposed in the second receiving cavity 202.

[0060] The base 21 is also provided with a light-transmitting port 211. The first receiving cavity 201 and the second receiving cavity 202 are connected through the light-transmitting port 211. A filter 7 is provided in the light-transmitting port 211. The filter 7 separates the first receiving cavity 201 and the second receiving cavity 202 into two independent cavities, preventing dust in the first receiving cavity 201 from entering the second receiving cavity 202. This prevents dust from adhering to the photosensitive area of ​​the image sensor 101 and affecting the shooting effect of the camera module.

[0061] Thus, after passing through the lens assembly 3, the light can reach the image sensor 101 through the filter 7 set in the light port 211, and the image sensor 101 can collect the light.

[0062] As can be seen from the above, in the embodiments of this application, by disposing at least a portion of the first deformation component 4 between the mounting base 2 and the lens assembly 3 along the optical axis direction of the lens assembly 3, the shape of the first deformation component 4 can be changed by controlling the energization state of the first deformation component 4, thereby controlling the lens assembly 3 to move along the optical axis direction, so as to conveniently realize the focusing function of the camera module.

[0063] Compared to existing telescopic drive schemes for lens assembly 3, the camera module of this application saves the space occupied by the original drive component between the peripheral wall of lens assembly 3 and the side wall of the first receiving cavity 201, and can arrange a larger volume lens assembly 3 in a limited space, thus meeting the high-pixel shooting requirements of the camera module.

[0064] In some embodiments, such as Figure 1 and Figure 2 As shown, the first deformable component 4 in this embodiment of the application includes a first elastic cavity 41 and a first tightening ring 42.

[0065] The first elastic cavity 41 can be made of an elastic membrane 401, and a flowable medium 402 is filled inside the first elastic cavity 41. The fluid medium can be a liquid medium or a gas medium. Since the volume of a liquid medium is less affected by temperature changes compared to a gas medium, and the stability of a liquid medium is relatively high, this embodiment can fill the first elastic cavity 41 with a liquid medium.

[0066] Furthermore, the first elastic cavity 41 includes a first cavity portion 411 and a second cavity portion 412, which are connected; along the optical axis of the lens assembly 3, the first cavity portion 411 is disposed between the mounting base 2 and the lens assembly 3.

[0067] The first tightening ring 42 is sleeved on the peripheral wall of the second cavity 412. The first tightening ring 42 can be electrically connected to the circuit board 1 through gold wire or other conductive parts. The size of the inner diameter of the first tightening ring 42 is different when the first tightening ring 42 is energized and de-energized.

[0068] Understandably, the first tightening ring 42 can be made of a section of shape memory alloy (SMA) bent into an open ring shape. That is, the first tightening ring 42 is an SMA tightening ring known in the art. Based on the shape memory characteristics of the first tightening ring 42, the size of the inner diameter of the first tightening ring 42 can be changed by changing the energizing state of the first tightening ring 42.

[0069] Thus, when the inner diameter of the first expansion ring 42 decreases, the first expansion ring 42 can apply an expansion force to the second cavity 412, causing the volume of the second cavity 412 to decrease, thereby driving a portion of the flowable medium 402 in the second cavity 412 to enter the first cavity 411, causing the first cavity 411 to be in an expanded state, and then the lens assembly 3 can be driven to move in the first direction through the first cavity 411.

[0070] Conversely, when the inner diameter of the first tensioning ring 42 increases, the tensioning force of the first tensioning ring 42 on the second cavity 412 decreases. The flowable medium 402 in the first cavity 411 flows back into the second cavity 412, causing the volume of the first cavity 411 to decrease and return to its initial state. The lens assembly 3 can then be driven to move in the second direction through the first cavity 411. Both the first and second directions are along the optical axis of the lens assembly 3, and they are opposite in direction.

[0071] It should be noted that the lens assembly 3 in this embodiment includes a carrier 302 and a lens 301. The lens 301 includes a plurality of coaxially arranged optical lenses and is mounted on the carrier 302. The carrier 302 may be arranged in a ring shape so that light passing through the lens 301 can smoothly reach the image sensor 101 after passing through the inner hole of the carrier 302.

[0072] In some embodiments, in order to stably control the movement of the lens assembly 3 along the optical axis, the first cavity portion 411 of this embodiment extends circumferentially in a ring shape relative to the optical axis of the lens assembly 3, and the light passing through the lens assembly 3 can pass through the central hole of the first cavity portion 411 to reach the image sensor 101.

[0073] Optionally, in this embodiment, the carrier 302 and the first cavity 411 of the lens assembly 3 can both be arranged in annular shape, the first side of the first cavity 411 is bonded to the carrier 302, the second side of the first cavity 411 is bonded to the mounting base 2, and the first cavity 411 and the carrier 302 are coaxially arranged.

[0074] Based on the above configuration, the first cavity 411 ensures that the optical path between the lens assembly 3 and the image sensor 101 is unobstructed, and when the first cavity 411 deforms, the force applied by the first cavity 411 to the lens assembly 3 is always along the optical axis of the lens assembly 3, and the lens assembly 3 can be driven to move stably along the optical axis by the first cavity 411.

[0075] In some embodiments, the type of shape memory alloy in the first expansion ring 42 can be selected according to actual needs, so that when the first expansion ring 42 is energized, the shape memory alloy in the first expansion ring 42 elongates, causing the inner diameter of the first expansion ring 42 to contract to compress the second cavity portion 412, thereby controlling the first cavity portion 411 to reach an expanded state.

[0076] Correspondingly, since the first expansion ring 42 has the characteristic of restoring its initial shape, when the first expansion ring 42 is de-energized, the shape memory alloy in the first expansion ring 42 shortens, and the inner diameter of the first expansion ring 42 increases to relieve the pressure on the second cavity 412, so that a portion of the flowable medium flows from the first cavity 411 to the second cavity 412, thereby restoring the first cavity 411 from the expanded state to the initial state. The volume of the first cavity 411 in the initial state is smaller than the volume in the expanded state, so as to drive the lens assembly 3 to move along the optical axis direction according to the volume change of the first cavity 411.

[0077] Of course, in other embodiments, when the first tightening ring 42 is energized, the inner diameter of the first tightening ring 42 can also be increased, and when the first tightening ring 42 is de-energized, the inner diameter of the first tightening ring 42 shrinks. At this time, the deformation state of the first cavity 411 can also be controlled by the first tightening ring 42, which will not be described in detail here.

[0078] In some embodiments, the first deformation component 4 can replace the voice coil motor in the existing camera module to drive the lens assembly 3 to move directionally along the optical axis.

[0079] Specifically, in this embodiment, the first cavity portion 411 of the first elastic bladder 41 can be disposed between the bottom wall of the first receiving cavity 201 and the second surface of the lens assembly 3.

[0080] Thus, when the first tension ring 42 is de-energized, the inner diameter of the first tension ring 42 is at the first diameter, and the first tension ring 42 does not apply tension force to the second cavity 412. At this time, the lens 301 of the lens assembly 3 is at the first image distance relative to the image sensor 101.

[0081] When the first tension ring 42 is energized, its inner diameter is at the second diameter. Since the second diameter is smaller than the first diameter, the first tension ring 42 applies a tensioning force to the second cavity portion 412, causing the first cavity portion 411 to expand and drive the lens assembly 3 to move toward the side away from the image sensor 101 until the lens 301 of the lens assembly 3 is at the second image distance relative to the image sensor 101, thereby realizing the focus adjustment of the camera module.

[0082] In some embodiments, such as Figure 1 As shown, in order to facilitate the reciprocating movement of the lens assembly 3 along the optical axis, the first deformation assembly 4 of this application embodiment is provided in two sets; the first cavity portion 411 of the first set of the first deformation assembly 4 is disposed between the top wall P1 of the first receiving cavity 201 and the first surface of the lens assembly 3; the first cavity portion 411 of the second set of the first deformation assembly 4 is disposed between the bottom wall P2 of the first receiving cavity 201 and the second surface of the lens assembly 3; wherein, the top wall P1 and the bottom wall P2 of the first receiving cavity 201 are opposite to each other along the optical axis, and the first surface and the second surface of the lens assembly 3 are opposite to each other along the optical axis.

[0083] like Figure 3 As shown, when it is necessary to control the lens assembly 3 to retract toward the first receiving cavity 201 along the optical axis, the first tensioning ring 42 of the first set of first deformation components 4 can be controlled to be in an energized state, and the first tensioning ring 42 of the second set of first deformation components 4 can be controlled to be in an de-energized state. This allows the first cavity portion 411 of the first set of first deformation components 4 to be in an expanded state, and the first cavity portion 411 of the second set of first deformation components 4 to be in an initial state. Thus, under the combined action of the first cavity portions 411 of the two sets of first deformation components 4, the lens assembly 3 moves downward along the optical axis and can retract into the first receiving cavity 201.

[0084] like Figure 4As shown, when it is necessary to control the lens assembly 3 to extend along the optical axis toward the side away from the first receiving cavity 201, the first tensioning ring 42 of the first set of first deformation components 4 can be controlled to be in a de-energized state, and the first tensioning ring 42 of the second set of first deformation components 4 can be controlled to be in an energized state. This allows the first cavity portion 411 of the first set of first deformation components 4 to be in an initial state, and the first cavity portion 411 of the second set of first deformation components 4 to be in an expanded state. Thus, under the combined action of the first cavity portions 411 of the two sets of first deformation components 4, the lens assembly 3 moves upward along the optical axis, and the lens 301 of the lens assembly 3 can extend out from the opening 221 on the mounting base 2.

[0085] In some embodiments, such as Figure 1 As shown, the camera module in this embodiment of the application is further provided with a partition 6; the second cavity portion 412 of the first set of first deformation components 4 and the second cavity portion 412 of the second set of first deformation components 4 are connected by the partition 6, and the partition 6 is connected to the mounting base 2.

[0086] Based on the partition 6, the second cavity 412 in the two sets of first deformation components 4 can be connected to the mounting base 2 as one unit, ensuring the stability of the installation of the two first elastic cavities 41, and also preventing the two first elastic cavities 41 from connecting.

[0087] As can be seen from the above, this embodiment can stably control the lens assembly 3 to reciprocate along the optical axis by configuring two sets of first deformation components 4, so as to realize the focusing function of the camera module.

[0088] Meanwhile, since the carrier 302 of the lens assembly 3 and the top wall of the first receiving cavity 201, as well as the carrier 302 of the lens assembly 3 and the bottom wall of the first receiving cavity 201, are connected by the first cavity part 411, and a flowable medium 402 is provided in the first cavity part 411, when the camera module shakes under the action of external force, the first cavity part 411 can provide buffer for the lens assembly 3, prevent the lens assembly 3 from colliding with other components of the camera module, realize the protection of the lens assembly 3, and improve the effect of abnormal noise caused by collision.

[0089] Based on the solutions described in the above embodiments, such as Figure 5 As shown, the camera module in this embodiment of the application is further provided with a second deformation component 5; the second deformation component 5 is disposed in the first receiving cavity 201 and is located between the peripheral wall of the lens assembly 3 and the side wall P3 of the first receiving cavity 201; the second deformation component 5 is electrically connected to the circuit board 1.

[0090] Understandably, the second deformation component 5 can adopt a structure similar to that of the first deformation component 4. By controlling the energization state of the second deformation component 5, the shape of the second deformation component 5 can be changed to drive the lens assembly 3 to move in a plane perpendicular to its optical axis.

[0091] Among them, Figure 2 and Figure 6 In the image, the optical axis of the lens assembly 3 is along the z-axis, and the plane perpendicular to the optical axis is the plane composed of the x-axis and y-axis.

[0092] Thus, when shooting a target object, when the motion sensor (e.g., gyroscope) built into the camera module detects that the lens assembly 3 moves or shakes in a plane perpendicular to the optical axis, the second deformation component 5 can be energized. Based on the change in the shape of the second deformation component 5, the movement or shaking of the lens assembly 3 in a plane perpendicular to the optical axis can be limited, thereby achieving image stabilization control of the lens 301 and improving the shooting effect of the camera module.

[0093] In some embodiments, such as Figure 5 As shown, the second deformation component 5 in this embodiment includes a second elastic cavity 51 and a second expansion ring 52.

[0094] The second elastic cavity 51 is filled with a flowable medium 402; the second elastic cavity 51 includes a third cavity portion 511 and a fourth cavity portion 512, which are connected; the third cavity portion 511 is disposed between the peripheral wall of the lens assembly 3 and the side wall of the first receiving cavity 201; the second expansion ring 52 is sleeved on the peripheral wall of the fourth cavity portion 512; the second expansion ring 52 is electrically connected to the circuit board 1;

[0095] The size of the inner diameter of the second tightening ring 52 is different when the second tightening ring 52 is energized and de-energized.

[0096] The second expansion ring 52 can be an SMA expansion ring known in the art, and the second expansion ring 52 can be electrically connected to the circuit board 1 through gold wire or other conductive components. At the same time, the third cavity portion 5115 is disposed between the peripheral wall of the carrier 302 of the lens assembly 3 and the side wall of the first receiving cavity 201.

[0097] In practical applications, the second expansion ring 52 can be energized, and the inner diameter of the second expansion ring 52 will shrink to compress the fourth cavity 512, so that the flowable medium 402 in the fourth cavity 512 enters the third cavity 511, causing the third cavity 511 to expand, thereby driving the lens assembly 3 to move in a plane perpendicular to the optical axis.

[0098] When the second tightening ring 52 is de-energized, the inner diameter of the second tightening ring 52 increases to release the pressure on the first tightening ring 52.

[0099] The pressure from the fourth cavity 512 causes the flowable medium 402 in the third cavity 511 to enter the fourth cavity 512, resulting in the third cavity 511 being in a contracted state. At this time, the third cavity 511 no longer drives the lens assembly 3 to move in order to perform image stabilization control on the lens assembly 3. However, since the third cavity 511 stores the flowable medium 402, when the camera module shakes under the action of external force, the fifth third cavity 511 can provide buffering for the lens assembly 3 along the plane perpendicular to the optical axis, preventing the lens assembly 3 from colliding with other components of the camera module, thus protecting the lens assembly 3 and improving the effect of reducing abnormal noise caused by collision.

[0100] It should be noted that, in order to improve the image stabilization control effect on the lens 301, multiple sets of the second deformation component 5 can be provided in this embodiment, and the second elastic cavities 51 of multiple sets of the second deformation component 5 can be arranged around the carrier 302 of the lens assembly 3.

[0101] Based on the solutions described in the above embodiments, such as Figure 6 As shown, the circuit board 1 of this application embodiment is provided with a plurality of image sensors 101; the lens assembly 3 and the image sensors 101 are provided with a plurality of each other in opposite directions;

[0102] Multiple lens assemblies 3 are movably disposed in the first receiving cavity 201.

[0103] Specifically, in the case where the mounting base 2 includes a base 21 and a housing 22, this embodiment may provide a plurality of second receiving cavities 202 on the base 21, each second receiving cavity 202 being configured with a communication channel thereto.

[0104] Optical port 211.

[0105] Meanwhile, the housing 22 is provided with multiple openings 221, and a first receiving cavity 201 is formed between the housing 22 and the base 21. The multiple openings 221 are respectively connected to the first receiving cavity 201, and the first receiving cavity 201 is connected to multiple second receiving cavities 202 through multiple openings 221 corresponding to the second receiving cavities 202.

[0106] For each lens assembly 3, this application places a first deformation component 4 between the mounting base 2 and the lens assembly 3 along the optical axis direction of the lens assembly 3, so as to control the movement of the lens assembly 3 along the optical axis direction through the first deformation component 4. Thus, when the camera module is arranged, this application can minimize the gap between the carriers 302 of two adjacent lens assemblies 3 as much as possible, thereby realizing the miniaturization design of the camera module.

[0107] Secondly, embodiments of this application provide an electronic device, including: a housing and a camera module as described in any of the preceding claims; the housing and the camera module are connected.

[0108] Specifically, since the electronic device includes a camera module, and the specific structure of the camera module is as described in the above embodiments, the electronic device shown in this embodiment includes all the technical solutions of the above embodiments. Therefore, it has at least all the beneficial effects achieved by all the technical solutions of the above embodiments, which will not be described in detail here.

[0109] In this embodiment of the application, the aforementioned electronic device may be a mobile terminal, such as a smartphone, tablet computer, laptop computer, personal digital assistant (PDA), mobile internet device (MID), or wearable device, or other electronic devices such as digital camera, e-reader, navigator, etc.

[0110] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., 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, the 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.

[0111] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A camera module, characterized in that, The utility model relates to a lens module, comprising: a circuit board, a mounting seat, a lens assembly and a first deformation assembly; the circuit board is connected with the mounting seat, and an image sensor is arranged on the circuit board; a first accommodating cavity is arranged in the mounting seat, the lens assembly is movably arranged in the first accommodating cavity, and the lens assembly and the image sensor are oppositely arranged; at least part of the first deformation assembly is arranged between the mounting seat and the lens assembly along the optical axis direction of the lens assembly; the first deformation assembly is electrically connected with the circuit board and is used for driving the lens assembly to move along the optical axis direction; the first deformation assembly comprises a first elastic cavity and a first expansion ring; the first elastic cavity is filled with a flowable medium; the first elastic cavity comprises a first cavity part and a second cavity part, and the first cavity part and the second cavity part are communicated; the first cavity part is arranged between the mounting seat and the lens assembly along the optical axis direction of the lens assembly; the first expansion ring is sleeved on the peripheral wall of the second cavity part, and the first expansion ring is electrically connected with the circuit board; the inner diameter of the first expansion ring is different in the case that the first expansion ring is powered on and powered off, the first expansion ring is used for exerting expansion force on the second cavity part to change the volume of the first cavity part, and the lens assembly is driven to move by the first cavity part.

2. The camera module of claim 1, wherein, in the case that the first expansion ring is powered on, the inner diameter of the first expansion ring is contracted to press the second cavity part, so that the flowable medium in the second cavity part enters the first cavity part, so that the first cavity part is in an inflation state; in the case that the first expansion ring is powered off, the inner diameter of the first expansion ring is increased to release the pressure on the second cavity part, so that the first cavity part returns to an initial state, and the volume of the first cavity part in the initial state is smaller than that in the inflation state.

3. The camera module of claim 1, wherein, the first cavity part extends in a ring shape relative to the optical axis of the lens assembly in the circumferential direction, and the light of the lens assembly can pass through the center hole of the first cavity part to reach the image sensor.

4. The camera module of claim 1, wherein, the first deformation assembly is provided with two sets; the first cavity part of the first deformation assembly of the first set is arranged between the top wall of the first accommodating cavity and the first surface of the lens assembly; the first cavity part of the first deformation assembly of the second set is arranged between the bottom wall of the first accommodating cavity and the second surface of the lens assembly; wherein, the top wall and the bottom wall of the first accommodating cavity are opposite along the optical axis direction, and the first surface and the second surface of the lens assembly are opposite along the optical axis direction.

5. The camera module of claim 4, wherein, further comprising: a partition piece; the second cavity part of the first deformation assembly of the first set and the second cavity part of the first deformation assembly of the second set are connected through the partition piece, and the partition piece is connected with the mounting seat.

6. The camera module of claim 1, wherein, further comprising: a second deformation assembly; the second deformation assembly is arranged in the first accommodating cavity and located between the peripheral wall of the lens assembly and the side wall of the first accommodating cavity; the second deformation assembly is electrically connected with the circuit board.

7. The camera module of claim 6, wherein, the second deformation assembly comprises a second elastic cavity and a second expansion ring; The second elastic cavity is filled with a flowable medium; the second elastic cavity comprises a third cavity portion and a fourth cavity portion, and the third cavity portion and the fourth cavity portion are communicated; The third cavity portion is arranged between a circumferential wall of the lens assembly and a side wall of the first accommodating cavity; the second expansion ring is arranged on a circumferential wall of the fourth cavity portion; The second expansion ring and the circuit board are electrically connected.

8. The camera module of any one of claims 1-7, wherein, The mounting seat comprises a base and a shell; The base and the shell are connected, and the first accommodating cavity is formed between the base and the shell; at least part of the first deformation assembly is arranged between at least one of the base and the shell and the lens assembly along an optical axis direction of the lens assembly; The circuit board and the base are connected, and the second accommodating cavity is formed between the circuit board and the base, and the image sensor is arranged in the second accommodating cavity.

9. The camera module of any one of claims 1-7, wherein, A plurality of image sensors are arranged on the circuit board; a plurality of lens assemblies are arranged, and the plurality of lens assemblies and the plurality of image sensors are arranged one by one in a corresponding manner, and the plurality of lens assemblies are movably arranged in the first accommodating cavity respectively.

10. An electronic device, comprising: The camera module comprises a shell and the camera module as claimed in any one of claims 1 to 9; the shell and the camera module are connected.

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