WO2022242555A1 - Camera module and electronic device - Google Patents

Abstract

The present application relates to the technical field of communication devices, and discloses a camera module and an electronic device. The camera module comprises a module housing, a lens assembly, a circuit board assembly, and a driving mechanism. The module housing is provided with an inner cavity, and at least part of the lens assembly is located in the inner cavity and is fixedly connected to the module housing. The circuit board assembly comprises a circuit board, a photosensitive chip, and a USB data transmission controller; the photosensitive chip, the USB data transmission controller and part of the circuit board are all located in the inner cavity; the photosensitive chip is located on the surface of the circuit board facing one side of the lens assembly and is electrically connected to the circuit board; the photosensitive chip is arranged opposite to the lens assembly; and the USB data transmission controller is disposed on the circuit board and is electrically connected to the circuit board. The driving mechanism is located in the inner cavity, and the driving mechanism is connected to the circuit board; and the driving mechanism, by means of the circuit board, drives the photosensitive chip to move along a first plane, the first plane intersecting the optical axis of the lens assembly.

Description

Camera module and electronic equipment

cross reference

The present invention claims priority to a Chinese patent application filed with the China Patent Office on May 19, 2021, with application number 202110547738.X, and title of invention "camera module and electronic equipment", the entire content of which is hereby incorporated by reference In the present invention.

technical field

The present application belongs to the technical field of photographing equipment, and in particular relates to an electronic equipment.

Background technique

With the advancement of technology, electronic devices (such as mobile phones, tablet computers) have been greatly developed. As a powerful tool, electronic equipment greatly facilitates the life and work of users. The camera function is a basic function of an electronic device, which can meet a user's shooting needs. The camera function is usually implemented by a camera module of an electronic device.

During the process of realizing the invention, the inventors found the following problems in related technologies. Users usually hold electronic devices to shoot images. Due to shaking during the handheld shooting process, the quality of images taken by electronic devices will be poor.

Contents of the invention

The purpose of the embodiments of the present application is to provide a camera module and an electronic device, which can solve the problem of poor shooting performance of the electronic device.

In order to solve the above-mentioned technical problems, the application is implemented as follows:

The embodiment of the present application provides a camera module, including:

A module housing, the module housing is provided with an inner cavity;

A lens assembly, at least part of which is located in the inner cavity and is fixedly connected to the module housing;

A circuit board assembly, the circuit board assembly includes a circuit board, a photosensitive chip and a USB data transmission controller, the photosensitive chip, the USB data transmission controller and part of the circuit board are all located in the inner cavity, the The photosensitive chip is located on the surface of the circuit board facing the lens assembly, and is electrically connected to the circuit board. The photosensitive chip is arranged opposite to the lens assembly, and the USB data transmission controller is arranged on the circuit board. board, and is electrically connected to the circuit board, and the USB data transmission controller is used to transmit the data of the photosensitive chip;

A driving mechanism, the driving mechanism is located in the inner cavity, the driving mechanism is connected to the circuit board, and the driving mechanism drives the photosensitive chip to move along the first plane through the circuit board, and the first The plane intersects the optical axis of the lens assembly.

An embodiment of the present application provides an electronic device, including the above-mentioned camera module.

In the embodiment of the present application, the driving mechanism is connected to the circuit board, and the driving mechanism can drive the photosensitive chip to move along the first plane through the circuit board, wherein the first plane intersects the optical axis of the lens assembly. In this solution, the drive mechanism can drive the photosensitive chip to move in the opposite direction of the camera module shake through the drive circuit board, so as to compensate the shake amount of the camera module, and then realize the anti-shake function of the camera module to improve Capture quality of electronic devices.

Description of drawings

FIG. 1 is a schematic structural diagram of a camera module disclosed in an embodiment of the present application;

Fig. 2 is a side view of the camera module disclosed in the embodiment of the present application;

Fig. 3 is a cross-sectional view of the camera module disclosed in the embodiment of the present application;

Fig. 4 is an exploded view of the camera module disclosed in the embodiment of the present application;

5 to 10 are structural schematic diagrams of some components of the camera module disclosed in the embodiments of the present application;

Fig. 11 is a schematic structural diagram of a circuit board assembly in a camera module disclosed in an embodiment of the present application;

Fig. 12 is a schematic structural view of the elastic electrical connector in the camera module disclosed in the embodiment of the present application;

13 to 15 are structural schematic diagrams of some components of the driving mechanism in the camera module disclosed in the embodiments of the present application;

FIG. 16 is a schematic structural view of the filter holder in the camera module disclosed in the embodiment of the present application.

Explanation of reference signs:

100-module housing, 101-inner cavity, 110-cover, 111-through hole, 120-bottom plate, 121-groove,

200-lens assembly, 210-motor, 211-mounting hole, 220-lens,

300-circuit board assembly, 310-second circuit board, 311-second electrical connection part, 312-fourth electrical connection part, 320-photosensitive chip, 330-elastic electrical connector, 331-first electrical connection terminal, 332 - the first elastic arm, 333 - the second elastic arm, 334 - the second electrical connection terminal, 340 - the USB data transmission controller, 350 - the first circuit board, 351 - the second escape hole,

500-drive mechanism, 510-magnet group, 520-coil group, 530-loading bracket, 531-support plate, 5311-first avoidance hole, 5312-third avoidance gap, 532-side plate,

610-Filter holder, 611-Substrate, 6111-First avoidance gap, 6112-Second avoidance gap, 612-Ring-shaped protrusion, 613-Electrical connection protrusion, 620-Filter,

700-elastic piece,

800 - Detection element.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application can be practiced in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

The camera module provided by the embodiment of the present application will be described in detail below through specific embodiments and application scenarios with reference to the accompanying drawings.

Please refer to FIGS. 1 to 16 , the embodiment of the present application discloses a camera module applied to electronic equipment. The disclosed camera module includes a module housing 100 , a lens assembly 200 , a circuit board assembly 300 and a driving mechanism 500 .

The module housing 100 provides a mounting base for the lens assembly 200 , the circuit board assembly 300 , the driving mechanism 500 and other components of the camera module. The module housing 100 defines an inner cavity 101 , at least part of the lens assembly 200 is located in the inner cavity 101 and is fixedly connected with the lens assembly 200 . The lens assembly 200 is used for collecting external ambient light. Optionally, the top of the module housing 100 can be made of a transparent material, such as glass, transparent resin and other materials, the top of the module housing 100 can transmit light, and the lens assembly 200 is opposite to the top of the module housing 100, Light can enter the lens assembly 200 . Alternatively, a through hole 111 may be opened on the top of the module housing 100 , and light may enter the lens assembly 200 through the through hole 111 . The module housing 100 and the lens assembly 200 can be connected by bonding, threading, welding and the like.

The circuit board assembly 300 includes a circuit board, a photosensitive chip 320 and a Universal Serial Bus (USB) data transmission controller 340 . The photosensitive chip 320 is located on the circuit board facing the lens

The surface on one side of the component 200, and the photosensitive chip 320 is electrically connected to the circuit board. The photosensitive chip 320 is disposed opposite to the lens assembly 200 , that is, the photosensitive surface of the photosensitive chip 320 is disposed opposite to the lens assembly 200 . The light in the external environment enters the camera module through the lens assembly 200, and then is transmitted to the photosensitive chip 320, thereby being converted into image information. The USB data transmission controller 340 is disposed on the circuit board and is electrically connected to the circuit board. The USB data transmission controller 340 is used for transmitting data of the photosensitive chip 320 . At this time, the data collected by the photosensitive chip 320 is transmitted to the main board of the electronic device through the USB data transmission controller.

Part of the circuit board located in the inner cavity 101 is provided with a photosensitive chip 320 and a USB data transmission controller 340, while a part of the circuit board located outside the inner cavity 101 protrudes from the inner cavity 101 and is connected to the main board of the electronic device. In this way, the data transmission between the camera module and the main board of the electronic device is realized, and the data transmission at this time adopts the USB transmission mode.

Optionally, the photosensitive chip 320 may be a high-resolution photosensitive chip, so that the camera module has better performance, and thus the electronic device has better user experience. The photosensitive chip 320 may be a complementary metal oxide semiconductor (Complementary Metal Oxide Semiconductor, CMOS) imaging chip. The lens assembly 200 may be a telephoto lens or a short focus lens, and the specific structure of the lens assembly 200 is not limited herein.

The driving mechanism 500 is located in the inner cavity 101 and is connected to the circuit board. The driving mechanism 500 drives the photosensitive chip 320 to move along the first plane through the circuit board. The first plane intersects the optical axis of the lens assembly 200 . Specifically, the driving mechanism 500 can drive a part of the circuit board located in the cavity 101 to move.

Optionally, part of the circuit boards located outside the inner chamber 101 may be flexible boards, and part of the circuit boards located inside the inner chamber 101 may be rigid boards, the photosensitive chip 320 is located on the rigid board, and the driving mechanism 500 drives the rigid board to move, The flexible board can bend and deform as the rigid board moves. Of course, the circuit board may also have other structures, and this article only provides a feasible implementation manner, which cannot be used to limit the specific structure of the present application.

Optionally, the drive mechanism 500 may be a drive motor, an electromagnetic drive structure, a shape memory alloy and other power structures, and of course, it may also be other power structures, which are not limited herein.

In the embodiment disclosed in the present application, the driving mechanism 500 drives the photosensitive chip 320 to move along the opposite direction of the shaking of the camera module through the driving circuit board, so as to compensate for the shaking of the camera module, thereby realizing the anti-vibration of the camera module. Shake function to improve the shooting quality of electronic equipment.

In the specific operation process, when the gyroscope inside the electronic device or the camera module detects that the camera module is tilted, the gyroscope will obtain data such as the tilt angle of the camera module and transmit it to the control chip, and the control chip will input the corresponding angle compensation. The control chip controls the driving mechanism 500 to drive the circuit board to move, so that the photosensitive chip 320 moves, thereby realizing the anti-shake function of the camera module. The control chip is a conventional structure provided on the circuit board, and will not be described in detail herein.

In the embodiment disclosed in the present application, a USB data transmission controller 340 is also provided on the circuit board, and the USB data transmission controller 340 can be used to transmit data of the photosensitive chip 320 . The USB data transmission controller 340 can realize the USB data transmission mode, and the USB data transmission mode can realize the time-sharing transmission of data, and different data can be transmitted in different time periods, thus making the data transmission fast. At the same time, the USB transmission mode has fewer pins and a large amount of data transmission, so that the miniaturization of the camera module can be realized and the data transmission performance of the camera module can be improved.

In the above-mentioned embodiment, some circuit boards located outside the cavity 101 have greater pulling force on some circuit boards located in the cavity 101, so that the movement flexibility of some circuit boards located in the cavity 101 is poor , thus making the anti-shake performance of the camera module poor.

Based on this, in another optional embodiment, the circuit board assembly 300 may further include an elastic electrical connector 330 . The circuit board may include a first circuit board 350 and a second circuit board 310 , and part of the first circuit board 350 protrudes into the inner cavity 101 and is attached to the bottom of the module housing 100 . The second circuit board 310 may be located between the first circuit board 350 and the lens assembly 200 .

The photosensitive chip 320 can be located on the surface of the second circuit board 310 facing the lens assembly 200 , and is electrically connected to the second circuit board 310 . The USB data transmission controller 340 may be disposed on the second circuit board 310 and electrically connected to the second circuit board 310 .

One end of the elastic electrical connector 330 is electrically connected to the second circuit board 310 , and the other end is electrically connected to the first circuit board 350 . The second circuit board 310 and the first circuit board 350 can be elastically connected through the elastic electrical connector 330 . At this time, the elastic electrical connector 330 is not only used to support the second circuit board 310, but also used to realize the relative movement between the second circuit board 310 and the first circuit board 350, and at the same time, it can realize the connection between the second circuit board 310 and the first circuit board. electrical connection between boards 350 .

The driving mechanism 500 can be connected with the second circuit board 310 , and the driving mechanism 500 can drive the photosensitive chip 320 to move along the first plane through the second circuit board 310 .

In this solution, the second circuit board 310 is connected to the first circuit board 350 through the elastic electrical connector 330, and the size of the elastic electrical connector 330 is small, so the pulling force on the second circuit board 310 is small, so that the second circuit The plate 310 moves more flexibly. At the same time, the elastic electrical connector 330 supports the second circuit board 310, so that the second circuit board 310 is in a suspended state, so the second circuit board 310 is easier to move, thereby further improving the anti-shake performance of the camera module.

Optionally, the elastic electrical connector 330 may be an elastic structure such as a metal spring or a suspension wire, and of course may also be made of other materials, which are not limited herein.

In another optional embodiment, the camera module disclosed in this application may further include a filter holder 610 and a filter 620, and the filter holder 610 may be located between the lens assembly 200 and the second circuit board 310 , and is fixedly connected to the second circuit board 310 . The optical filter 620 can be disposed on the optical filter holder 610 , and the optical filter 620 can be disposed opposite to the photosensitive chip 320 and the lens assembly 200 . The filter 620 can filter the light entering the photosensitive chip 320 , so as to improve the shooting performance of the camera module.

In this solution, the filter holder 610 is fixedly connected to the second circuit board 310, and the second circuit board 310 provides an installation position for the filter holder 610, so there is no need to set other components for the filter holder 610 in the module housing 100. The fixed structure simplifies the structure of the camera module and makes the structure of the camera module simpler. In addition, there is no need to set other fixing structures for the filter holder 610 in the module housing 100 , and there is no need to reserve the installation position of the fixing structures, thus making the size of the camera module smaller.

In addition, since the filter holder 610 is fixedly connected to the second circuit board 310, the filter holder 610 moves together with the second circuit board 310, and the relative position of the filter 620 and the photosensitive chip 320 remains unchanged at this time. , so the filtering performance is better. In addition, the filter holder 610 moves together with the second circuit board 310, and the relative position of the filter 620 and the photosensitive chip 320 remains unchanged, so the filter holder 610 will not block the edge position of the photosensitive chip 320, Further, the photosensitive performance of the photosensitive chip 320 is improved.

In the above-mentioned embodiment, the weight of the second circuit board 310, the filter holder 610 and the filter 620 all act on the elastic electrical connector 330, so that the elastic electrical connector 330 is stressed, and the elastic electrical connector 330 The compressed amount is relatively large, so that the deformation performance of the elastic electrical connector 330 is deteriorated, thereby easily increasing the pulling force on the second circuit board 310 , and further reducing the anti-shake performance of the camera module.

Based on this, in another optional embodiment, the camera module disclosed in this application may further include an elastic member 700, one end of the elastic member 700 may be connected to the lens assembly 200, and the other end of the elastic member 700 may be connected to the filter The optical sheet holder 610 is connected. In this solution, the elastic member 700 can assist the filter holder 610 above the filter holder 610, so that the force on the elastic electrical connector 330 is small, and the compressed amount of the elastic electrical connector 330 Smaller, so that the deformation performance of the elastic electrical connector 330 is better, and the pulling force on the second circuit board 310 is smaller, which further improves the anti-shake performance of the camera module.

Optionally, the elastic member 700 may be a structure such as a spring, a suspension wire, or elastic rubber, and of course may also be other elastic structures, which are not limited herein.

In another optional embodiment, the lens assembly 200 may include a motor 210 and a lens 220, and the motor 210 may drive the lens 220 to move along the optical axis. This solution can realize the focusing function of the camera module, thereby improving the performance of the camera module.

Further, the elastic member 700 can be a conductive member, the filter holder 610 can be a third circuit board, the filter holder 610 can be electrically connected to the second circuit board 310, and the motor 210 is connected to the filter holder 610 through the elastic member 700 electrical connection. The second circuit board 310 is electrically connected to the motor 210 through the filter holder 610 and the conductive member, so that the second circuit board 310 can supply power to the motor 210, and at the same time can realize data transmission between the motor 210 and the second circuit board 310 .

In this solution, the circuit structure composed of the elastic member 700 and the filter holder 610 can supply power to the motor 210 and transmit data, so that the camera module does not need to set other circuit structures to supply power and transmit data to the motor 210, thus making the camera module The structure is simpler and more compact.

Optionally, the motor 210 may be a voice coil motor 210 , of course, it may be other types of motors 210 , which is not limited herein.

In the above embodiment, the data transmission between the motor 210 and the second circuit board 310 can also be realized through the USB data transmission controller 340 .

In order to reduce the volume of the camera module, in another optional embodiment, the motor 210 may be provided with a mounting hole 211 , and at least part of the lens 220 may be located in the mounting hole 211 . In this solution, at least part of the lens 220 can be hidden in the installation hole 211 , thereby reducing the stacking height of the motor 210 and the lens 220 , thereby reducing the volume of the camera module.

In another optional embodiment, the filter holder 610 may be provided with a first avoidance gap 6111, the side wall of the first avoidance gap 6111 is provided with a first electrical connection part, and the second circuit board 310 may be provided with a direction toward The second electrical connection portion 311 extending from one side of the filter holder 610 is located in the first avoidance gap 6111 , and the second electrical connection portion 311 is electrically connected to the first electrical connection portion. In this solution, the connection between the first electrical connection part and the second electrical connection part 311 is hidden in the first avoidance gap 6111, so that the first connection part and the second electrical connection part are connected during the movement of the second circuit board 310. The connection of 311 is not easy to collide with other components, thus improving the connection safety of the first connection part and the second connection part, thereby improving the safety performance of the camera module.

Optionally, the first electrical connection part and the second electrical connection part 311 can be board-to-board connectors, gold fingers or soldering, and of course, the first electrical connection part and the second electrical connection part 311 can also be other structures This article is not limited.

In another optional embodiment, the driving mechanism 500 may include a coil set 520 and a magnet set 510, and the coil set 520 and the magnet set 510 may be arranged oppositely. One of the coil set 520 and the magnet set 510 may be disposed on the lens assembly 200 , and the other may be disposed on the filter holder 610 . When the coil group 520 is energized, the driving filter holder 610 drives the second circuit board 310 to move along the first plane. The energized coil group 520 can generate an ampere force in the magnetic field generated by the magnet group 510 , and the ampere force generated by the coil group 520 and the magnet group 510 can drive the second circuit board 310 to move. In this solution, when the direction of the current passing through the coil group 520 is changed, the direction of the ampere force is changed, so that the photosensitive chip 320 can change direction flexibly, and the anti-shake effect is better.

In addition, the multiple coils in the coil assembly 520 can generate ampere forces in multiple directions, thereby driving the photosensitive chip 320 to move in multiple directions, further improving the motion range of the photosensitive chip 320, and further improving the anti-shake performance of the camera module. .

In the above-mentioned embodiment, when the coil group 520 or the magnet group 510 is arranged on the filter holder 610, the end of the coil group 520 or the magnet group 510 close to the filter holder 610 is fixedly connected with the filter holder 610, away from the filter The movement of the bracket 610 is in a suspended state, so the connection stability of the coil group 520 or the magnet group 510 is poor.

In another optional embodiment, the driving mechanism 500 may also include a bearing bracket 530, the bearing bracket 530 may be arranged on the surface of the filter holder 610 facing the lens assembly 200, and the bearing bracket 530 may be arranged around the lens assembly 200 , the coil set 520 or the magnet set 510 is disposed on the supporting frame 530 . In this solution, the bearing bracket 530 is used to fix the coil set 520 or the magnet set 510 , thereby improving the connection stability of the coil set 520 or the magnet set 510 .

In another optional embodiment, the bearing bracket 530 can be a fourth circuit board, the coil group 520 can be arranged on the bearing bracket 530, and be electrically connected with the bearing bracket 530, and the bearing bracket 530 can be provided with a direction filter A third electrical connection portion extending from one side of the bracket 610 . The second circuit board 310 may be provided with a fourth electrical connection portion 312 extending toward one side of the filter holder 610 . The filter holder 610 can be provided with a second avoidance gap 6112, at least part of the third electrical connection part and/or the fourth electrical connection part 312 is located in the second avoidance gap 6112, the third electrical connection part and the fourth electrical connection part 312 electrical connections.

In this solution, the supporting bracket 530 can not only support the coil group 520, but also supply power to the coil group 520, thereby improving the performance of the supporting bracket 530. In addition, the coil group 520 is directly powered by the supporting bracket 530, so the camera There is no need to arrange additional circuits in the module to supply power to the coil group 520, thus further simplifying the composition of the camera module.

In addition, the third electrical connection part and/or the fourth electrical connection part 312 can be hidden in the second avoidance gap 6112, so that the third electrical connection part and the fourth electrical connection part 312 are not easy to move on the second circuit board 310 There is contact with other components, thereby improving the safety performance of the third electrical connection part and the fourth electrical connection part 312 .

Optionally, the third electrical connection part and the fourth electrical connection part 312 may be board-to-board connectors, golden fingers or soldering, and of course, the third electrical connection part and the fourth electrical connection part 312 may also be other structures This article is not limited.

In another optional embodiment, the camera module disclosed in the present application may further include at least one detection element 800. At least one detection element 800 may be arranged on the bearing bracket 530 and electrically connected to the bearing bracket 530. The detection element 800 It can be used to detect the offset angle of the lens assembly 200 relative to the photosensitive chip 320 . In this solution, the detection element 800 can measure the offset angle of the photosensitive chip 320 in real time, so as to ensure the anti-shake effect of the camera module. The detecting element 800 may be a Hall chip, and of course, may also be other types of chips, which are not limited herein.

In the specific operation process, when the photosensitive chip 320 moves, the detection element 800 can detect the offset angle of the photosensitive chip 320, and the detection signal can be fed back to the control chip, thereby correcting the offset position of the photosensitive chip 320.

In another optional solution, the carrying bracket 530 may include a support plate 531 and a side plate 532, the support plate 531 and the filter holder 610 may fit together, and the side plate 532 is away from the edge of the support plate 531 along the One side of the sheet holder 610 extends. The supporting plate 531 and the side plate 532 can be surrounded to form an accommodating space, the lens assembly 200 can be located in the accommodating space, the supporting plate 531 can be provided with a first avoidance hole 5311, the first avoiding hole 5311 and the optical filter 620 and the lens assembly 200 are both relative settings. The first escape hole 5311 is used for light transmission, and the light passes through the first avoidance hole 5311 and enters the filter 620 .

In this solution, the carrying bracket 530 can wrap the lens assembly 200 along the circumference of the lens assembly 200 , so as to effectively relieve dust and water vapor from adhering to the lens assembly 200 , thereby ensuring the cleanliness of the lens assembly 200 .

In the above embodiment, the support plate 531 covers the surface of the filter holder 610 facing the lens assembly 200, the elastic member 700 needs to bypass the support plate 531 and be connected to the side of the filter holder 610 or the side facing away from the lens assembly 200. The surface on one side makes it difficult to connect the elastic member 700 and the filter holder 610 .

Based on this, in another optional embodiment, the support plate 531 can be provided with a third avoidance gap 5312, the filter holder 610 includes a substrate 611, an annular protrusion 612 and an electrical connection protrusion 613, the annular protrusion 612 Both the electrical connection protrusion 613 can be located on the surface of the substrate 611 facing the lens assembly 200 , and the annular protrusion 612 can be arranged around the filter 620 . The electrical connection protrusion 613 can be electrically connected with the elastic member 700 , at least part of the electrical connection protrusion 613 is located in the third avoidance gap 5312 , and the annular protrusion 612 can be located in the first avoidance hole 5311 .

In this solution, the electrical connection protrusion 613 is exposed through the third avoidance gap 5312, thereby facilitating the electrical connection between the elastic member 700 and the electrical connection protrusion 613, so the elastic member 700 does not need to bypass the support plate 531, so that the elastic member 700 and the light filter The sheet holder 610 is less difficult to connect.

In addition, the annular protrusion 612 can be arranged around the filter 620, so that the filter 620 is embedded on the filter holder 610, so that the filter 620 is more tightly installed on the filter holder 610, avoiding the filter There is no risk of the sheet 620 falling off the filter holder 610.

In order to further improve the anti-shake performance of the camera module, in another optional embodiment, the coil group 520 may include at least four coils arranged around the lens assembly 200, and the magnet group 510 may include at least four coils arranged around the lens assembly 200. Four magnets. Each coil is disposed opposite to one of the magnets, and the second circuit board 310 is driven to move along the first axis when a pair of the opposite coils is energized. When the other pair of opposite coils is energized, the second circuit board 310 is driven to move along the second axis, the first plane is the plane where the first axis and the second axis are located, and the first axis intersects the second axis. Preferably, said first axis and said second axis are perpendicular.

In this solution, the photosensitive chip 320 moves in two intersecting directions, thereby increasing the moving range of the photosensitive chip 320, thereby increasing the shake compensation range of the camera module, and further improving the anti-shake performance of the camera module.

In addition, each direction is driven by two opposite coils, so the driving force of the photosensitive chip 320 is increased, thereby increasing the moving speed of the photosensitive chip 320 and making the anti-shake response of the camera module more rapid.

In the above-mentioned embodiments, when dust in the environment enters the module housing 100 , it is easy to adhere to the photosensitive chip 320 , thus causing poor photosensitive performance of the photosensitive chip 320 . For this reason, in another optional embodiment, the side of the filter holder 610 facing the photosensitive chip 320 may be provided with an accommodating groove, the accommodating groove and the second circuit board 310 form an airtight space, and the photosensitive chip 320 is located in the airtight space. inside the space. In this solution, the photosensitive chip 320 is located in the enclosed space surrounded by the receiving groove and the second circuit board 310 , so that dust is not easily attached to the photosensitive chip 320 , thereby improving the photosensitive performance of the photosensitive chip 320 .

There are various structures of the elastic electrical connector 330. The present application discloses a specific structure of the elastic electrical connector 330. Please refer to FIG. The arm 332 , the second elastic arm 333 and the second electrical connection terminal 334 , the first electrical connection terminal 331 is electrically connected to the second circuit board 310 . Specifically, the first electrical connection terminal 331 may be connected to a pin of the USB data transmission controller 340 . The second electrical connection terminal 334 may be electrically connected with the first circuit board 350 . The first elastic arm 332 and the second elastic arm 333 may both be strip-shaped, and the extending direction of the first elastic arm 332 intersects the extending direction of the second elastic arm 333 . In this solution, the elastic electrical connector 330 has a simple structure and is easy to manufacture, thereby reducing the manufacturing cost of the camera module. In addition, the extension direction of the first elastic arm 332 intersects the extension direction of the second elastic arm 333, so the first elastic arm 332 and the second elastic arm 333 can be supported on two adjacent positions of the second circuit board 310, Therefore, the supporting area is larger, so that the supporting performance for the second circuit board 310 is better.

In order to further improve the supporting performance of the elastic electrical connector 330 on the second circuit board 310 . In another optional embodiment, as shown in FIG. 12 , the number of elastic electrical connectors 330 may be multiple, and the plurality of elastic electrical connectors 330 may form a ring structure along the circumference of the second circuit board 310 . The first electrical connection terminal 331 is located in the ring structure, and the second electrical connection terminal 334 is located outside the ring structure. In any two adjacent elastic electrical connectors 330, the second elastic arm 333 of one elastic electrical connector 330 is connected to the other. The first elastic arms 332 of one elastic electrical connector 330 are arranged side by side and parallel to each other.

In this solution, a plurality of elastic electrical connections are placed into a ring structure and can be supported along the circumferential direction of the second circuit board 310, so that the support force received by the second circuit board 310 is more balanced, thereby further improving the elastic electrical connector 330. Support performance for the second circuit board 310 .

The elastic member 700 in the above embodiments may adopt the same structure as the elastic electrical connection member 330 .

In the embodiment of the present application, the structure of the module housing 100 can be various. Please refer to FIG. 4 . The bottom plate 120 may enclose the inner cavity 101 . The cover body 110 may define a through hole 111 communicating with the inner cavity 101 , and the through hole 111 may be disposed opposite to the lens assembly 200 . The through hole 111 is used to expose the lens 220 in the lens assembly 200 . The cover body 110 can be fixedly connected with the lens assembly 200 . The first circuit board 350 can be attached to the base plate 120 . The module housing 100 with the above structure has good assembly performance, and facilitates the installation of the lens assembly 200 and the circuit board assembly 300 .

Optionally, the cover body 110 and the bottom plate 120 may be connected by clamping, bonding or welding, and the specific connection method of the cover body 110 and the bottom plate 120 is not limited herein.

In another optional embodiment, the first circuit board 350 may be provided with a second avoidance hole 351 , the bottom plate 120 may be provided with a groove 121 , and the second avoidance hole 351 may communicate with the groove 121 . At least part of the elastic electrical connector 330 may be located in the second escape hole 351 and/or the groove 121 . At this time, without increasing the height of the module housing 100, the elastic electrical connector 330 can have a larger installation space, thereby preventing the elastic electrical connector 330 from being affected by the small installation space of the elastic electrical connection. deformation. In this solution, the height of the module housing 100 is relatively small, so the volume of the camera module is relatively small.

Based on the camera module disclosed in the embodiments of the present application, the embodiments of the present application further disclose an electronic device, and the disclosed electronic device includes the camera module described in any of the above embodiments.

The electronic devices disclosed in the embodiments of the present application may be smart phones, tablet computers, e-book readers, wearable devices (such as smart watches), electronic game consoles and other devices, and the embodiments of the present application do not limit the specific types of electronic devices.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims (20)

1. A camera module, including:

   A module housing, the module housing is provided with an inner cavity;

   a lens assembly, at least part of which is located in the inner cavity and is fixedly connected to the module housing;

   A circuit board assembly, the circuit board assembly includes a circuit board, a photosensitive chip and a USB data transmission controller, the photosensitive chip, the USB data transmission controller and part of the circuit board are all located in the inner cavity, the The photosensitive chip is located on the surface of the circuit board facing the lens assembly, and is electrically connected to the circuit board. The photosensitive chip is arranged opposite to the lens assembly, and the USB data transmission controller is arranged on the circuit board. board, and is electrically connected to the circuit board, and the USB data transmission controller is used to transmit the data of the photosensitive chip;

   A driving mechanism, the driving mechanism is located in the inner cavity, the driving mechanism is connected to the circuit board, and the driving mechanism drives the photosensitive chip to move along the first plane through the circuit board, and the first The plane intersects the optical axis of the lens assembly.
2. The camera module according to claim 1, wherein the circuit board assembly further includes an elastic electrical connector, the circuit board includes a first circuit board and a second circuit board, part of the first circuit board extends into the In the inner cavity, and attached to the bottom of the module housing; the second circuit board is located between the first circuit board and the lens assembly;

   The photosensitive chip is located on the surface of the second circuit board facing the lens assembly, and is electrically connected to the second circuit board;

   The USB data transmission controller is arranged on the second circuit board and is electrically connected to the second circuit board;

   One end of the elastic electrical connector is electrically connected to the second circuit board, and the other end is electrically connected to the first circuit board, and the second circuit board and the first circuit board pass through the elastic electrical connector Elastic connection;

   The driving mechanism is connected with the second circuit board, and the driving mechanism drives the photosensitive chip to move along the first plane through the second circuit board.
3. The camera module according to claim 2, wherein the camera module further comprises a filter holder and a filter, and the filter holder is located between the lens assembly and the second circuit board, And it is fixedly connected with the second circuit board, the optical filter is arranged on the optical filter bracket, and the optical filter is arranged opposite to the photosensitive chip and the lens assembly.
4. The camera module according to claim 3, wherein the camera module further comprises an elastic member, one end of the elastic member is connected to the lens assembly, and the other end of the elastic member is connected to the optical filter bracket connected.
5. The camera module according to claim 4, wherein the lens assembly includes a motor and a lens, the motor drives the lens to move along the optical axis, the elastic member is a conductive member, and the filter holder is a third circuit board, the filter holder is electrically connected to the second circuit board, and the motor is electrically connected to the filter holder through the elastic member.
6. The camera module according to claim 5, wherein the motor is provided with a mounting hole, and at least part of the lens is located in the mounting hole.
7. The camera module according to claim 5, wherein the filter bracket is provided with a first avoidance gap, the side wall of the first avoidance gap is provided with a first electrical connection part, and the second circuit board is provided with There is a second electrical connection portion extending toward one side of the filter holder, the second electrical connection portion is located in the first avoidance gap, and the second electrical connection portion is connected to the first electrical connection portion electrical connection.
8. The camera module according to claim 3, wherein the driving mechanism includes a coil group and a magnet group, the coil group and the magnet group are arranged oppositely, and one of the coil group and the magnet group is arranged on the The lens assembly, the other one is arranged on the filter holder, and when the coil group is energized, the filter holder is driven to drive the second circuit board to move along the first plane.
9. The camera module according to claim 8, wherein the driving mechanism further includes a bearing bracket, the bearing bracket is arranged on the surface of the filter bracket facing the lens assembly side, and the bearing bracket surrounds the The lens assembly is arranged, and the coil group or the magnet group is arranged on the supporting bracket.
10. The camera module according to claim 9, wherein the bearing bracket is a fourth circuit board, the coil group is arranged on the bearing bracket, and is electrically connected with the bearing bracket, and the bearing bracket is provided with The third electrical connection portion extending toward the side of the filter holder, the second circuit board is provided with a fourth electrical connection portion extending toward the side of the filter holder, the filter holder is provided with The second avoidance gap, at least part of the third electrical connection part and/or the fourth electrical connection part is located in the second avoidance gap, the third electrical connection part and the fourth electrical connection part are electrically connect.
11. The camera module according to claim 10, wherein the camera module further comprises at least one detection element, at least one detection element is arranged on the bearing bracket and is electrically connected to the bearing bracket, and the detection The element is used for detecting the deviation angle of the lens assembly relative to the photosensitive chip.
12. The camera module according to claim 10, wherein the bearing bracket comprises a support plate and a side plate, the support plate is attached to the filter bracket, and the side plate extends from the edge of the support plate Extending along a side away from the filter bracket, the support plate and the side plate surround to form an accommodation space, the lens assembly is located in the accommodation space, and the support plate is provided with a first escape hole, The first escape hole is opposite to the filter and the lens assembly.
13. The camera module according to claim 12, wherein the support plate is provided with a third avoidance gap, the filter holder includes a substrate, an annular protrusion and an electrical connection protrusion, and the annular protrusion and the The electrical connection protrusions are all located on the surface of the substrate facing the lens assembly, the ring-shaped protrusions are arranged around the filter, the electrical connection protrusions are electrically connected to the elastic member, and the electrical connection protrusions are electrically connected to the elastic member. At least part of the connecting protrusion is located in the third avoidance gap, and the annular protrusion is located in the first avoidance hole.
14. The camera module according to claim 10, wherein the coil group includes at least four coils arranged around the lens assembly, the magnet group includes at least four magnets arranged around the lens assembly, each of the The coils are arranged opposite to one of the magnets, and the second circuit board is driven to move along the first axis when one pair of the opposite coils is energized, and when the other pair of the opposite coils is energized Next, drive the second circuit board to move along the second axis, the first plane is the plane where the first axis and the second axis are located, and the first axis intersects the second axis.
15. The camera module according to claim 3, wherein a receiving groove is opened on the side of the filter holder facing the photosensitive chip, and the receiving groove and the second circuit board form a closed space, the The photosensitive chip is located in the enclosed space.
16. The camera module according to claim 2, wherein the elastic electrical connector comprises a first electrical connection terminal, a first elastic arm, a second elastic arm and a second electrical connection terminal connected in sequence, the first electrical connection The connection terminal is electrically connected to the second circuit board, the second electrical connection terminal is electrically connected to the first circuit board, the first elastic arm and the second elastic arm are both strip-shaped, and the The extension direction of the first elastic arm intersects the extension direction of the second elastic arm.
17. The camera module according to claim 16, wherein the number of the elastic electrical connectors is multiple, and the plurality of elastic electrical connectors form a ring structure along the circumference of the second circuit board, the The first electrical connection terminal is located inside the ring structure, and the second electrical connection terminal is located outside the ring structure. Among any two adjacent elastic electrical connectors, the first electrical connector of one elastic electrical connector is The two elastic arms are juxtaposed and parallel to the first elastic arm of the other elastic electrical connector.
18. The camera module according to claim 2, wherein the module housing includes a cover and a bottom plate, the cover and the bottom plate enclose the inner cavity, and the cover has a The cavity is connected with a through hole, the through hole is arranged opposite to the lens assembly, the cover is fixedly connected with the lens assembly, and the first circuit board is attached to the bottom plate.
19. The camera module according to claim 18, wherein the first circuit board is provided with a second avoidance hole, the bottom plate is provided with a groove, the second avoidance hole communicates with the groove, and the At least part of the elastic electrical connector is located in the second avoidance hole and/or the groove.
20. An electronic device, comprising the camera module according to any one of claims 1-19.

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