CN116060385B

CN116060385B - Camera module and electronic equipment

Info

Publication number: CN116060385B
Application number: CN202210929276.2A
Authority: CN
Inventors: 王利飞
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2023-11-14
Anticipated expiration: 2042-08-03
Also published as: CN116060385A

Abstract

The application provides a camera module and electronic equipment, relates to the technical field of electronic products, and is used for solving the problem that dust enters the camera module. Specifically, the application provides a camera module, which comprises a first shell and an optical lens driving device. The optical lens is arranged in the first shell. The driving device is used for driving the optical lens to vibrate, and the frequency of the vibration of the optical lens is greater than or equal to 30Hz. The optical lens is driven by the driving device to vibrate, the frequency of vibration is greater than or equal to 30Hz, so that dust on the surface of the optical lens floats and is separated from the surface of the optical lens, the surface of the optical lens reaches a clean mirror surface, the shooting effect of the camera module is improved, and the use experience of a user is further improved. Therefore, the problem that dust enters the camera module is solved, and the use experience of a user is improved. The electronic equipment provided by the application is used for shooting images and videos.

Description

Camera module and electronic equipment

Technical Field

The present application relates to the field of electronic products, and in particular, to a camera module and an electronic device.

Background

With the continuous development of electronic technology, electronic devices such as mobile phones and tablet computers are widely applied to daily life of people, and most of the current electronic devices are provided with a camera module to take images in consideration of the fact that the image capturing function is deeply favored by users. In the prior art, the camera module has the risk of entering dust in production and in the subsequent use process. The main reasons for dust ingress include, but are not limited to, the following three aspects:

first aspect: in the packaging process, dust enters the camera module;

second aspect: the housing of the electronic device is assembled from a plurality of parts, such as a middle frame, a battery cover and a decoration, and a gap is inevitably formed between the two assembled parts, so that dust easily enters the camera module through the gap;

third aspect: the cover plate of the camera module is cracked, and dust enters the camera module through the crack.

When dust gets into the camera module, especially when getting into the inside light path of camera module, can influence the shooting quality of camera module.

Disclosure of Invention

The embodiment of the application provides a camera module and electronic equipment, which are used for solving the problem that dust enters the camera module.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical scheme:

in a first aspect, the present application provides a camera module, including a first housing and an optical lens driving device. Specifically, the optical lens is disposed in the first housing. The driving device is used for driving the optical lens to vibrate, and the frequency of the vibration of the optical lens is greater than or equal to 30Hz. The optical lens is driven by the driving device to vibrate, so that dust on the surface of the optical lens floats and is separated from the surface of the optical lens, the surface of the optical lens is provided with a clean mirror surface, the shooting effect of the camera module is improved, and the use experience of a user is further improved.

In one possible implementation, the frequency of the optical lens vibration is less than or equal to 20000Hz. The frequency is in the bearing range of the camera module, so that the risk of damaging the performance of the camera module is greatly reduced. Under the premise of guaranteeing the performance of the camera module, the shooting effect of the camera module is further improved, and the use experience of a user is improved.

In one possible implementation, the vibration amplitude of the optical lens is less than or equal to 5mm. The vibration amplitude is in the bearing range of the camera module, so that the risk of damaging the performance of the camera module is greatly reduced. Under the premise of guaranteeing the performance of the camera module, the shooting effect of the camera module is further improved, and the use experience of a user is improved.

In one possible implementation, the vibration direction of the optical lens is parallel to the optical axis direction of the optical lens. The driving device drives the optical lens to vibrate in the Z-axis direction, and the optical lens generates certain displacement in the vertical direction, so that dust on the surface of the optical lens is easier to float and separate from the optical lens, and all dust on the surface of the optical lens floats and separates from the optical lens under the repeated vibration of the optical lens. The light incident surface of the optical lens reaches the clean mirror surface, so that the shooting effect of the camera module is improved, and the use experience of a user is further improved.

In one possible implementation, the drive means comprises a coil and a magnet. One of the coil and the magnet is arranged on the optical lens, and the other of the coil and the magnet is arranged on the first shell. The coil cooperates with the magnet to drive the optical lens to vibrate with respect to the first housing. The magnitude, the direction and the time of the current flowing through the coil are controlled by the driving chip, the current flows through the coil to generate a magnetic field, and the magnetic field generated by the coil interacts with the magnet. The optical lens vibrates to shake off dust under the drive of the magnet. The driving device is used for controlling the vibration of the optical lens and adjusting the time and frequency of the vibration of the optical lens. When a user finds that the optical lens has dust by using the camera module, the optical lens can be cleaned by shaking off the dust, so that the shooting effect of the camera module is better.

In one possible implementation, the driving device is further configured to drive the optical lens to move along the optical axis direction of the optical lens, so as to achieve automatic focusing of the optical lens. The vibration of the camera module and the automatic focusing of the camera module adopt the same driving device. The volume of the first shell is reduced, the volume of the camera module is reduced, and the volume of terminal equipment of the camera module can be further reduced. The user's experience of use is better.

In one possible implementation, the camera module further includes a photosensitive chip and a first adsorption portion. The first shell further comprises a bottom plate, and the bottom plate is positioned on the light emitting side of the optical lens. The photosensitive chip and the first adsorption part are positioned in the first shell, and the photosensitive chip and the first adsorption part are arranged on the surface of the bottom plate facing the light emitting side. The first adsorption part is arranged around the photosensitive chip. The first adsorption part is used for adsorbing dust. When the optical lens vibrates, dust on the surface of the optical lens is shaken off, and the shaken-off dust is deposited on the first adsorption part. The first adsorption part is used for sticking the shaken-off dust and preventing the dust from flying to the surface of the optical lens again. Further improve the shooting effect of camera module, improve user's use experience.

In one possible implementation manner, the camera module further includes a side frame and a second adsorption portion, the side frame is disposed on a periphery of an edge of the bottom plate, the bottom plate and the side frame enclose a first accommodating space, and the optical lens is disposed in the first accommodating space. The second adsorption part is arranged on the surface of the side frame facing the first accommodating space. The second adsorption part is also used for adsorbing dust. When the optical lens vibrates, dust falls through a gap between the side surface of the optical lens and the side frame. The second adsorption part is arranged on the inner wall of the side frame and can further adsorb dust in the falling process. And the dust is lighter, and easily floats in first accommodation space and can not fall on the bottom plate for a long time. The camera module can be moved and shaken in the process of using the camera module by a user, and the light floating in the moving and shaking process is very easy to fall on the surface of the optical lens. Through setting up the dust that the absorption of second adsorption part was floated, further improved the shooting effect of camera module, also further improved user's use experience.

In one possible implementation, the second adsorption portion is disposed on an inner surface of one end of the side frame near the light-transmitting window. When the camera module vibrates, dust on the optical lens is easy to float to the optical lens. Dust floating over the optical lens over time falls under the force of gravity onto the surface of the optical lens. The second adsorption part is arranged on the inner surface of one end, close to the light transmission window, of the side frame, so that the arrangement position of the second adsorption part is lifted, and the emptied dust is more easily adsorbed. Further improves the shooting effect of the camera module, and further improves the use experience of users.

In one possible implementation manner, the camera module further includes a first suction portion, and the first suction portion is disposed around the first suction portion. The first suction portion may be an electrostatic suction portion. The shaken off dust is attracted to the surface of the first suction portion by the static electricity of the first suction portion itself. So as to improve the efficiency of the first adsorption part for sticking dust.

In a second aspect, a camera module is provided, where the camera module includes a first housing, an optical lens, and a first adsorption portion, and the optical lens is disposed in the first housing. The first adsorption part is arranged in the first shell. The first adsorption part is used for adsorbing dust. When the optical lens vibrates, dust on the surface of the optical lens is shaken off, and the shaken-off dust is deposited on the first adsorption part. The first adsorption part is used for sticking the shaken-off dust and preventing the dust from flying to the surface of the optical lens again. Further improve the shooting effect of camera module, improve user's use experience.

In one possible implementation, the camera module further includes a first suction portion disposed around the first suction portion. The first suction portion may be an electrostatic suction portion. The shaken off dust is attracted to the surface of the first suction portion by the static electricity of the first suction portion itself. So as to improve the efficiency of the first adsorption part for sticking dust.

In a third aspect, an electronic device is provided, including a back cover and a camera module of any of the above, the back cover including a light transmissive window. The camera module is located the inboard of back of the body lid, and the income plain noodles of camera module is relative with the printing opacity window. Further improves the shooting effect of the camera module, and further improves the use experience of users.

In one possible implementation, the electronic device further includes a second housing and a fourth adsorption portion. The second shell is positioned between the back cover and the first shell, and the inner space of the second shell is communicated with the inner space of the first shell. The fourth adsorption part is positioned on the inner surface of the second shell. When the camera module vibrates, dust on the optical lens is easy to float to the optical lens. Dust floating over the optical lens over time falls under the force of gravity onto the surface of the optical lens. The third adsorption part is arranged in the second shell, so that the arrangement position of the second adsorption part is further raised, and the emptied dust is easier to adsorb. Further improves the shooting effect of the camera module, and further improves the use experience of users.

In one possible implementation, the wall panel of the second housing is a foam panel. The foam board has lighter weight and lower cost, and is beneficial to reducing the weight of the electronic equipment. Thereby improving the use experience of the user.

Drawings

Fig. 1 is a perspective view of an electronic device provided in some embodiments of the present application;

FIG. 2 is an exploded view of the electronic device shown in FIG. 1;

FIG. 3 is an internal circuit diagram of the electronic device shown in FIGS. 1 and 2;

FIG. 4 is an enlarged view of area A of FIG. 2;

FIG. 5 is a schematic view of the structure of FIG. 4 taken along line B-B;

FIG. 6 is a schematic diagram illustrating a structure of vibration of an optical lens according to some embodiments of the present application;

FIG. 7 is a schematic diagram illustrating another structure of vibration of an optical lens according to some embodiments of the present application;

FIG. 8 is a schematic diagram illustrating another structure of vibration of an optical lens according to some embodiments of the present application;

fig. 9 is a schematic structural diagram of a camera module according to some embodiments of the present application;

fig. 10 is a schematic structural diagram of a camera module according to some embodiments of the present application;

FIG. 11 is a schematic view of the structure of the base plate seen in the direction C in FIG. 10;

fig. 12 is a schematic structural diagram of a camera module according to some embodiments of the present application;

fig. 13 is a schematic structural diagram of a camera module according to some embodiments of the present application;

fig. 14 is a schematic structural diagram of a camera module according to some embodiments of the present application.

Detailed Description

In some embodiments, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", "a third", and "a fourth" may explicitly or implicitly include one or more such feature.

In some embodiments, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

It is to be understood that the above orientation or positional relationship as indicated by the terms "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description and to simplify the description, and are not indicative or implying that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

The application provides electronic equipment, which is one type of electronic equipment with a shooting function. In particular, the electronic device may be a portable electronic device or other suitable electronic device. For example, the electronic device may be a cell phone, a tablet (tablet personal computer), a laptop (laptop computer), a personal digital assistant (personal digital assistant, PDA), a camera, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, augmented reality (augmented reality, AR) glasses, AR helmets, virtual Reality (VR) glasses, VR helmets, or the like.

Referring to fig. 1 and fig. 2, fig. 1 is a perspective view of an electronic device 100 according to some embodiments of the present application, and fig. 2 is an exploded view of the electronic device 100 shown in fig. 1. In this embodiment, the electronic device 100 is a mobile phone. The electronic device 100 includes a screen 10, a back case 20, a camera module 30, and a camera trim cover 40.

It is to be understood that fig. 1 and 2 only schematically illustrate some components included in the electronic device 100, and the actual shape, actual size, actual position, and actual configuration of these components are not limited by fig. 1 and 2. In other examples, the electronic device 100 may not include the screen 10 and the camera trim cover 40.

The screen 10 is used to display images, videos, and the like. The screen 10 includes a light-transmitting cover plate 11 and a display screen 12 (english name: panel, also referred to as display panel). The light-transmitting cover plate 11 is laminated with the display screen 12. The light-transmitting cover plate 11 is mainly used for protecting and preventing dust of the display screen 12. The material of the transparent cover plate 11 includes, but is not limited to, glass. The display 12 may be a flexible display or a rigid display. For example, the display 12 may be an organic light-emitting diode (OLED) display, an active-matrix organic light-emitting diode (AMOLED) display, a mini-led (mini organic light-emitting diode) display, a micro-led (micro organic light-emitting diode) display, a micro-organic led (micro organic light-emitting diode) display, a quantum dot led (quantum dot light emitting diodes, QLED) display, a liquid crystal display (liquid crystal display, LCD).

The back shell 20 is used to protect the internal electronics of the electronic device 100. The back case 20 includes a back cover 21 and a rim 22. The back cover 21 is located at one side of the display screen 12 far away from the transparent cover plate 11, and is stacked with the transparent cover plate 11 and the display screen 12. The frame 22 is located between the back cover 21 and the light-transmitting cover plate 11. And the frame 22 is fixed to the back cover 21. Illustratively, the bezel 22 may be fixedly attached to the back cover 21 by adhesive. The frame 22 and the back cover 21 may be integrally formed, i.e. the frame 22 and the back cover 21 are integrally formed. The light-transmitting cover plate 11 is fixed to the rim 22 by gluing. The light-transmitting cover plate 11, the back cover 21 and the frame 22 enclose an internal accommodating space of the electronic device 100. The internal accommodation space accommodates the display screen 12 therein.

For convenience of the following description, an XYZ coordinate system is established, and a lamination direction of the light-transmitting cover plate 11, the display screen 12, and the back cover 21 in the electronic apparatus 100 (i.e., a thickness direction of the electronic apparatus 100) is defined as a Z-axis direction. The plane in which the light-transmitting cover plate 11, the display screen 12, or the back cover 21 is located is an XY plane. Specifically, the width direction of the electronic device 100 is the X-axis direction, and the length direction of the electronic device 100 is the Y-axis direction. It is understood that the coordinate system setting of the electronic device 100 may be flexibly set according to actual needs.

The camera module 30 is used for taking pictures/videos, and the camera module 30 is fixed in the internal accommodating cavity of the electronic device 100. In some embodiments, referring to fig. 2, the electronic device 100 further includes a midplane 23. The middle plate 23 is fixed to the inner surface of the rim 22 for one revolution. For example, the middle plate 23 may be fixed to the rim 22 by welding. Middle plate 23 may also be integrally formed with rim 22. The middle plate 23 serves as a structural "skeleton" of the electronic device 100, and the camera module 30 may be fixed to and supported by the middle plate 23 by screwing, clamping, welding, or the like.

On this basis, optionally, the materials of the middle plate 23 and the frame 22 are both high thermal conductive materials. Illustratively, the materials of middle plate 23 and rim 22 include, but are not limited to, metals such as stainless steel, aluminum alloys, magnesium aluminum alloys, and the like. The middle plate 23 is in heat-conducting contact with the rim 22. The heat of the camera module 30 can be conducted to the middle plate 23 and further conducted from the middle plate 23 to the frame 22. The bezel 22 is in contact with the external air environment of the electronic device 100, and thus heat of the bezel 22 may be further dissipated into the external air environment of the electronic device 100. Thereby enabling rapid heat dissipation of the camera module 30. Meanwhile, the structural strength of the metal is generally better, and the supporting performance of the middle plate 23 and the structural strength of the frame 22 can be ensured.

In other embodiments, the camera module 30 may be fastened to other heat conductive structures of the electronic device 100 by screwing, clamping, welding, or the like. For example, when the material of the back cover 21 or the frame 22 is a metal or other high thermal conductive material, the camera module 30 may be fixed on the back cover 21 or the frame 22 to conduct heat to the external air environment of the electronic device 100 through the back cover 21 or the frame 22.

The camera module 30 may be used as a rear camera module or a front camera module.

In some embodiments, referring to fig. 2, the camera module 30 is fixed to the surface of the middle plate 23 near the back cover 21. The light incident surface of the camera module 30 faces the back cover 21. The back cover 21 is provided with a mounting opening 51. The camera decorative cover 40 covers and is fixed to the mounting opening 51. The camera decorative cover 40 is used for protecting the camera module 30. In some embodiments, the camera decorative cover 40 protrudes to a side of the back cover 21 away from the light-transmissive cover plate 11. In this way, the camera decorative cover 40 can increase the installation space of the camera module 30 in the Z-axis direction within the electronic device 100. In other embodiments, the camera trim cover 40 may also be flush with the back cover 21 or recessed into the interior receiving space of the electronic device 100. The camera decorative cover 40 is provided with a light-transmitting region 41. The light-transmitting region 41 allows the light L1 of the subject to transmit and enter the light-incident surface of the camera module 30. In the present embodiment, the camera module 30 is used as a rear camera module of the electronic apparatus 100. Specifically, the camera module 30 may be used as a rear-mounted main camera module, a wide-angle camera module, or a telephoto camera module.

In other embodiments, the camera module 30 may be fixed on the surface of the middle plate 23 near the transparent cover plate 11. The light incident surface of the camera module 30 faces the light-transmitting cover plate 11. The display screen 12 is provided with an optical path avoiding hole. The light path avoidance hole allows the scenery light to penetrate through the light-transmitting cover plate 11 and then enter the light incident surface of the camera module 30. In this way, the camera module 30 functions as a front camera module of the electronic apparatus 100.

The main board 90 is fixed in an internal accommodating chamber of the electronic device 100. For example, the main board 90 may be fastened to the middle board 23 by screwing, clamping, or the like. When the electronic device 100 does not include the middle plate 23, the main board 90 may be fixed to the surface of the display screen 12 near the back cover 21 by a threaded connection, a clamping connection, or the like.

Referring to fig. 3, fig. 3 is an internal circuit diagram of the electronic device 100 shown in fig. 1 and 2. The electronic device 100 further comprises a calculation control unit 42. By way of example, the calculation control unit 42 may be provided on the main board 90. The computing control unit 42 may also be provided on other circuit boards within the electronic device, such as on the circuit board where the universal serial bus (universal serial bus, USB) device is located. In some embodiments, the computing control unit 42 is an application processor (application processor, AP).

The computation control unit 42 is electrically connected with the camera module 30. The computation control unit 42 is used for receiving and processing the electrical signals containing the image information from the camera module 30. The calculation control unit 42 is further configured to control the driving device of the camera module 30 to implement an auto-focus motion (automatic focusing, AF) and/or an optical anti-shake motion (optical image stabilization, OIS).

The camera module 30 may be a periscope type camera module or a vertical type camera module. The present application is illustrated with the camera module 30 as a vertical camera module.

The camera module 30 is in production and in subsequent use, the camera module 30 is at risk of dust entering. After the camera module 30 enters dust, not only the photographing quality and focusing quality are affected, but also the user can doubt the product quality.

Based on the above-described problems, the camera module 30 is improved. Specifically, referring to fig. 4 and 5 together, fig. 4 is an enlarged view of a region a in fig. 2. Fig. 5 is a schematic view of the structure of fig. 4 taken along line B-B. The camera module 30 includes a first housing 31, an optical lens 32, and a driving device 33. Specifically, the first housing 31 is provided therein with a first accommodation space 313. The optical lens 32 is disposed in the first accommodating space 313 of the first housing 31. The first housing 31 may be a cylindrical housing, a square cylindrical housing, or a special-shaped housing, and the present application is described taking the first housing 31 as a square cylindrical housing, but this is not a particular limitation of the first housing 31.

The driving device 33 is used for driving the optical lens 32 to vibrate, and the frequency of vibration of the optical lens 32 is greater than or equal to 30Hz. In the vibration process of the optical lens 32, the dust on the surface can float and separate from the surface of the optical lens 32, so that the shake-off of the dust is realized, the shooting effect of the camera module 30 is improved, and the use experience of a user is further improved. The vibration direction of the vibration of the optical lens 32 may be parallel to the optical axis direction of the optical lens 32, may be perpendicular to the optical axis direction, or may be inclined with respect to the optical axis direction, which is not particularly limited in the present application.

In some embodiments, referring to fig. 6, fig. 6 is a schematic diagram illustrating a structure of vibration of an optical lens 32 according to some embodiments of the present application. In some embodiments, the driving device 33 may drive the optical lens 32 to vibrate in the direction of the optical axis, that is, the vibration direction of the optical lens 32 is parallel to the optical axis direction of the optical lens 32, that is, the direction of the Z-axis in the drawing. In the Z-axis direction, the optical lens 32 vibrates between the position Z1 and the position Z2. Parallel here and hereinafter referred to as parallel means nearly parallel, not absolutely parallel, that is to say that a certain error of less than or equal to 15 ° may be allowed.

In still other embodiments, referring to fig. 7, fig. 7 is a schematic diagram illustrating another structure of vibration of the optical lens 32 according to some embodiments of the present application. The driving device 33 may also drive the optical lens 32 to vibrate in the optical anti-shake movement direction, i.e., the direction in which the vibration direction of the optical lens 32 is perpendicular to the optical axis. In the X-axis direction, the optical lens 32 vibrates between the position X1 and the position X2. The term vertical here and hereinafter referred to as vertical refers to nearly parallel, rather than absolute, i.e. a certain error of less than or equal to 15 ° may be allowed.

In still other embodiments, referring to fig. 8, fig. 8 is a schematic diagram illustrating another structure of vibration of an optical lens 32 according to some embodiments of the present application. In some embodiments, the driving device 33 may also drive the optical lens 32 to vibrate in the optical anti-shake movement direction in some embodiments. The optical lens 32 vibrates obliquely at an angle with respect to the X-Y plane. The inclination angle is less than or equal to 30 °. The optical lens 32 vibrates between the position X3 and the position X4.

The present application may set the vibration of the optical lens 32 to one of the vibration forms described above; it is also possible to provide that the vibration of the optical lens 32 includes two or all of the above three vibration forms. The present application is described by taking the vibration of the optical lens 32 in the Z-axis direction as an example, but this is not a particular limitation of the present application.

The optical lens 32 is driven to vibrate in the Z-axis direction by the driving device 33, and the optical lens 32 moves rapidly in the vertical direction, so that dust on the surface of the optical lens 32 is easier to float and separate from the optical lens 32, and all dust on the surface of the optical lens 32 floats and separates from the optical lens 32 under the repeated vibration of the optical lens 32. The light incident surface 321 of the optical lens 32 is used for realizing a clean mirror surface, which is beneficial to improving the shooting effect of the camera module 30 and further improving the use experience of a user.

In some embodiments, the frequency at which the optical lens 32 vibrates is less than or equal to 20000Hz. The vibration frequency of the optical lens 32 is too high to damage the performance of the camera module 30, in order to avoid the vibration of the optical lens 32 affecting the performance of the camera module 30, the vibration frequency of the optical lens 32 is set to be smaller than or equal to 20000Hz, and the vibration frequency is within the bearing range of the camera module 30, so that the risk of performance degradation of the camera module 30 is greatly reduced. Under the premise of ensuring the performance of the camera module 30, the shooting effect of the camera module 30 is further improved, and the use experience of a user is improved.

In some embodiments, referring back to fig. 6, 7 or 8, the vibration amplitude a of the optical lens 32 is less than or equal to 5mm. The vibration of the optical lens 32 in the Z-axis direction will be described as an example. In the Z-axis direction, the range of travel of the optical lens 32 is less than or equal to 5mm. That is, in the Z-axis direction, the distance between the highest point and the lowest point of vibration of the optical lens 32 is less than or equal to 5mm. Too high a vibration amplitude a of the vibration of the optical lens 32 may require an increase in the volume of the camera module 30 to reserve more space for the vibration of the optical lens 32. Under the premise of ensuring the small volume of the camera module 30, the shooting effect of the camera module 30 is further improved, and the use experience of a user is improved.

Referring to fig. 9, fig. 9 is a schematic structural diagram of a camera module 30 according to some embodiments of the application. In some embodiments, the drive device 33 includes a coil 331 and a magnet 332. One of the coil 331 and the magnet 332 is disposed on the optical lens 32, and the other of the coil 331 and the magnet 332 is disposed on the first housing 31. The coil 331 cooperates with the magnet 332 to drive the optical lens 32 to vibrate with respect to the first housing 31. In the drawings, the coil 331 is provided in the first housing 31, and the magnet 332 is provided in the optical lens 32. The coil 331 may be disposed on an inner wall of the first housing 31 or may be disposed on an outer wall of the first housing 31. Here, the inner wall means a surface of the first housing 31 facing the first accommodation space 313, and the outer wall means a surface of the first housing 31 facing away from the first accommodation space 313. In other embodiments, the coil 331 may also be disposed on the optical lens 32, and the magnet 332 is disposed on the first housing 31.

The magnitude, direction and time of the current flowing through the coil 331 are controlled by the driving chip, and a magnetic field is generated after the current flows through the coil 331, and the magnetic field generated by the coil 331 interacts with the magnet 332. The optical lens 32 vibrates to shake off dust under the drive of the magnet 332. The vibration of the optical lens 32 is controlled by the driving device 33, and the time and frequency of the vibration of the optical lens 32 are adjusted. When the user uses the camera module 30 to find that the optical lens 32 has dust, the optical lens 32 can be cleaned by shaking off the dust, so that the shooting effect of the camera module 30 is better. The weight of the coil 331 is lighter than that of the magnet 332, and the coil 331 is provided on the optical lens 32, so that the load of the optical lens 32 during vibration can be reduced. Further reducing the energy consumption when the optical lens 32 vibrates.

In some embodiments, the driving device 33 is further configured to drive the optical lens 32 to move along the optical axis direction of the optical lens 32, so as to achieve automatic focusing of the optical lens 32. The use of the auto-focusing optical lens 32 can further enhance the photographing effect of the camera module 30. The vibration of the camera module 30 and the automatic focusing of the camera module 30 adopt the same driving device 33. The volume of the first housing 31 is reduced, and thus the volume of the camera module 30 is reduced, and further the volume of the terminal device of the camera module 30 can be reduced. The user's experience of use is better.

Referring to fig. 10, fig. 10 is a schematic structural diagram of a camera module 30 according to some embodiments of the application. In some embodiments, the camera module 30 further includes a photosensitive chip 50 and a first adsorption portion 60. The first housing 31 further includes a bottom plate 311, and the bottom plate 311 is located on the light emitting side of the optical lens 32. The light-emitting side is the side opposite to the light-entering side of the optical lens 32. The light incident side is the side of the optical lens 32 that enters light. In the Z-axis direction, the bottom plate 311 is located below the optical lens 32. The photosensitive chip 50 and the first adsorption portion 60 are located in the first housing 31, and the photosensitive chip 50 and the first adsorption portion 60 are disposed on the surface of the bottom plate 311 facing the light emitting side. The photosensitive chip 50 is disposed on the light-emitting side of the optical lens 32, and is used for collecting the optical signals of the optical lens 32, converting the optical signals of the optical lens 32 into electrical signals, and transmitting the electrical signals to the computation control unit 42.

Referring to fig. 11, fig. 11 is a schematic structural view of the bottom plate 311 seen along the direction C in fig. 10. The first adsorption portion 60 is disposed around the photosensitive chip 50. The first adsorption part 60 is for adsorbing dust. The optical lens 32 shakes off dust on the surface thereof when vibrating, and the shaken off dust is deposited on the first adsorption portion 60. The first adsorption part 60 sticks the shaken-off dust, and prevents the dust from flying again to the surface of the optical lens 32. Further improves the shooting effect of the camera module 30, and improves the user experience.

In some embodiments, the material of the first adsorption portion 60 may be a gel. The material of the first adsorbing portion 60 may be any material having an adsorbing effect, and is not particularly limited herein.

Referring to fig. 12, fig. 12 is a schematic structural diagram of a camera module 30 according to some embodiments of the application. In some embodiments, the camera module 30 further includes a side frame 312 and the second adsorption portion 61, the side frame 312 is disposed around the edge of the bottom plate 311, and the bottom plate 311 and the side frame 312 enclose a first accommodating space 313, and the optical lens 32 is disposed in the first accommodating space 313. The second suction portion 61 is provided on a surface of the side frame 312 facing the first accommodation space 313.

The second suction portion 61 also serves to suck dust. When the optical lens 32 vibrates, dust falls through a gap between the side surface of the optical lens 32 and the side frame 312. The second adsorption part 61 is disposed on the inner wall of the side frame 312, and can further adsorb dust during the falling process. And, the dust is light, and easily floats in the first accommodating space 313 and cannot fall onto the bottom plate 311 for a long time. The camera module 30 is moved and shaken during the use of the camera module 30 by a user, and the dust floating during the movement and shaking is easily dropped onto the surface of the optical lens 32. Through setting up the dust that second adsorption part 61 adsorbed the float, further improved the shooting effect of camera module 30, also further improved user's use experience.

With continued reference to fig. 12, in some embodiments, the second adsorption portion 61 is disposed on an inner surface of one end of the side frame 312 near the light-transmitting window. When the camera module 30 vibrates, dust on the optical lens 32 is very easy to float onto the optical lens 32. Dust floating over the optical lens 32 over time falls back to the surface of the optical lens 32 under the influence of gravity. By disposing the second suction portion 61 on the inner surface of the side frame 312 near the end of the light-transmitting window, the position of the second suction portion 61 is raised, and the emptied dust is more easily sucked. Further improving the shooting effect of the camera module 30 and further improving the use experience of the user.

Referring to fig. 13, fig. 13 is a schematic structural diagram of a camera module 30 according to some embodiments of the application. In some embodiments, the camera module 30 further includes a first suction portion 70, where the first suction portion 70 is disposed around the first suction portion 60. Here, the circumference means that the distance between the first suction portion 70 and the first suction portion 60 is in the range of 5mm or less. The first suction portion 70 may be an electrostatic suction portion. The shaken off dust is attracted to the surface of the first suction part 60 by the static electricity of the first suction part 70 itself. To improve the efficiency of the first adsorption part 60 to stick dust.

Please continue to refer to fig. 13. The first suction portion 70 may be provided around the second suction portion 61. The first suction portion 70 may be an electrostatic suction portion. The shaken off dust is attracted to the surface of the second suction portion 61 by the static electricity of the first suction portion 70 itself. To improve the efficiency of the second suction portion 61 to stick dust.

Referring to fig. 14, fig. 14 is a schematic structural diagram of a camera module 30 according to some embodiments of the application. In some embodiments, the electronic device 100 further includes a second housing 80 and a third adsorption portion 62. The second housing 80 is located between the back cover 21 and the first housing 31, and an inner space of the second housing 80 communicates with an inner space of the first housing 31. The third adsorption portion 62 is located at an inner surface of the second housing 80. When the camera module 30 vibrates, dust on the optical lens 32 is very easy to float onto the optical lens 32. Dust floating over the optical lens 32 over time falls back to the surface of the optical lens 32 under the influence of gravity. By disposing the third suction portion 62 in the second housing 80, the disposition position of the second suction portion 61 is further raised, and the emptied dust is more easily sucked. Further improving the shooting effect of the camera module 30 and further improving the use experience of the user.

With continued reference to fig. 14, a second suction portion 71 may be provided around the third suction portion 62. The second suction portion 71 may be an electrostatic suction portion. The shaken off dust is attracted to the surface of the third suction portion 62 by the static electricity of the second suction portion 71 itself. To improve the efficiency of the third adsorption part 62 to stick dust.

In some embodiments, the first suction portion 70 and the second suction portion 71 may also be wind suction portions. Specifically, a negative pressure suction device is provided at one end of the first suction portion 70, and the other end of the first suction portion 70 is aligned with the first accommodating chamber 313 to suck dust in the first accommodating chamber 313 to the surface of the first suction portion 60. Similarly, the same means may be used for the second suction portion 71.

In some embodiments, the wall panel of the second housing 80 is a foam panel. The foam board is lighter in weight and lower in cost, which is beneficial to reducing the weight of the electronic device 100. Thereby improving the use experience of the user.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A camera module, comprising:

a first housing;

an optical lens disposed within the first housing;

the driving device is used for driving the optical lens to vibrate, and is also used for driving the optical lens to move along the optical axis direction of the optical lens so as to realize automatic focusing of the optical lens, and the frequency of vibration of the optical lens is greater than or equal to 30Hz.

2. The camera module of claim 1, wherein the frequency of vibration of the optical lens is less than or equal to 20000Hz.

3. The camera module of claim 1 or 2, wherein the vibration amplitude of the optical lens is less than or equal to 5mm.

4. The camera module according to claim 1 or 2, wherein a vibration direction of the optical lens is parallel to an optical axis direction of the optical lens.

5. The camera module according to claim 1 or 2, wherein,

the driving device comprises a coil and a magnet;

one of the coil and the magnet is arranged on the optical lens, and the other of the coil and the magnet is arranged on the first shell;

the coil cooperates with the magnet to drive the optical lens to vibrate relative to the first housing.

6. The camera module according to claim 1 or 2, wherein,

the device also comprises a photosensitive chip and a first adsorption part;

the first shell further comprises a bottom plate, and the bottom plate is positioned on the light emitting side of the optical lens;

the photosensitive chip and the first adsorption part are positioned in the first shell, and the photosensitive chip and the first adsorption part are arranged on the surface of the bottom plate facing the light emitting side;

the first adsorption part is arranged around the photosensitive chip.

7. The camera module of claim 6, further comprising:

the side frames are arranged on the periphery of the edge of the bottom plate, a first accommodating space is formed by the bottom plate and the side frames in a surrounding mode, and the optical lens is arranged in the first accommodating space;

the second adsorption part is arranged on the surface of the side frame, which faces the first accommodating space.

8. The camera module of claim 7, wherein the second adsorption portion is disposed on an inner surface of an end of the side frame away from the bottom plate.

9. The camera module of claim 7 or 8, further comprising:

and a first suction unit provided around the first suction unit.

10. A camera module, comprising:

a first housing;

an optical lens disposed within the first housing;

a first adsorption portion disposed within the first housing;

the second adsorption part is arranged in the first shell, the second adsorption part is arranged on the surface of the first shell facing the optical lens, and at least part of the second adsorption part is positioned on one side of the light incident surface of the optical lens facing.

11. The camera module of claim 10, wherein the camera module comprises a camera module having a camera module body,

the device also comprises a photosensitive chip;

the first adsorption part is arranged around the photosensitive chip.

12. The camera module of claim 11, further comprising:

the side frame, the side frame set up in the edge of bottom plate a week, just the bottom plate with the side frame encloses into first accommodation space, the optical lens set up in the first accommodation space, the second adsorption part set up in the side frame towards the surface of first accommodation space.

13. The camera module of claim 12, wherein the second adsorption portion is disposed on an inner surface of an end of the side frame away from the bottom plate.

14. The camera module of claim 10 or 11, further comprising:

and a first suction portion provided around the first suction portion.

15. An electronic device, comprising:

a back cover including a light-transmissive window;

the camera module of any one of claims 1-14, wherein the camera module is positioned inside the back cover, and a light incident surface of the camera module is opposite to the light-transmitting window.

16. The electronic device of claim 15, wherein the electronic device comprises a memory device,

the device also comprises a second shell and a third adsorption part;

the second shell is positioned between the back cover and the first shell, and the inner space of the second shell is communicated with the inner space of the first shell;

the third adsorption part is positioned on the inner surface of the second shell.

17. The electronic device of claim 16, wherein the wall of the second housing is a foam board.