CN111405186A

CN111405186A - Camera module and electronic equipment

Info

Publication number: CN111405186A
Application number: CN202010245916.9A
Authority: CN
Inventors: 刘峰; 庞钦全; 黎冠英
Original assignee: Vivo Mobile Communication Hangzhou Co Ltd
Current assignee: Vivo Mobile Communication Hangzhou Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-07-10
Anticipated expiration: 2040-03-31
Also published as: CN111405186B; WO2021197148A1

Abstract

The invention discloses a camera module and electronic equipment, wherein the camera module comprises a camera with a photosensitive element, a base, a driving mechanism and a detection part; wherein, the camera rotationally set up in on the base, actuating mechanism set up in the base, just actuating mechanism with the camera links to each other, the detection portion detects photosensitive element's inclination, the actuating mechanism drive the camera rotates and drives photosensitive element rotates compensation angle in the first direction, the first direction with photosensitive element's incline direction is opposite, compensation angle with inclination equals. The problem that the lens assembly needs to be designed to be large in size when the anti-shake function of the existing camera is ensured can be solved by the scheme.

Description

Camera module and electronic equipment

Technical Field

The embodiment of the invention relates to the technical field of camera shooting, in particular to a camera shooting module and electronic equipment.

Background

With the development of technology, electronic devices (such as mobile phones, tablet computers, etc.) have been developed, wherein the photographing and shooting functions of the electronic devices are becoming more powerful. At present, the anti-shake technology of a camera is usually realized based on a movable or inclined lens assembly, in the process, relative movement or relative inclination can occur between the lens assembly and a photosensitive chip, in order to enable an imaging circle of the lens assembly to completely cover an imaging area of the photosensitive chip, the size of the lens assembly must be increased, and then the structural space inside electronic equipment is occupied, so that the structural layout inside the electronic equipment is limited.

Disclosure of Invention

The embodiment of the invention provides a camera module and electronic equipment, which are used for solving the problem that a lens assembly needs to be designed to be large in size when the anti-shake function of the existing camera is ensured.

In order to solve the above problems, the present invention is realized by:

in a first aspect, an embodiment of the present invention provides a camera module, which includes a camera having a photosensitive element, a base, a driving mechanism, and a detecting portion; wherein, the camera rotationally set up in on the base, actuating mechanism set up in the base, just actuating mechanism with the camera links to each other, the detection portion detects photosensitive element's inclination, the actuating mechanism drive the camera rotates and drives photosensitive element rotates compensation angle in the first direction, the first direction with photosensitive element's incline direction is opposite, compensation angle with inclination equals.

In a second aspect, an embodiment of the invention provides an electronic device, which includes the camera module.

The technical scheme adopted by the invention can achieve the following beneficial effects:

in the camera module disclosed by the embodiment of the invention, the camera is rotatably arranged on the base, when the camera shakes during shooting, the camera can relatively rotate relative to the base to enable the photosensitive element to tilt, the detection part detects the tilt angle of the photosensitive element, the driving mechanism drives the camera to rotate to drive the photosensitive element to rotate in a first direction opposite to the tilt direction by a compensation angle, the compensation angle is equal to the tilt angle, and further adaptive angle compensation is performed on the photosensitive element in the tilt direction, so that adverse effects of the shaking problem on shooting are prevented.

Compared with the existing anti-shake technology, the camera module disclosed by the embodiment of the invention avoids the relative movement and relative inclination of the lens assembly and the photosensitive element, the lens assembly can meet the imaging requirement by adopting a smaller size, and the internal structural layout of the electronic equipment can be undoubtedly optimized besides the basic shooting anti-shake function.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

Fig. 1 is a front sectional view of a camera module disclosed in an embodiment of the present invention;

fig. 2 is a top cross-sectional view of the camera module disclosed in the embodiment of the present invention;

description of reference numerals:

100-camera, 110-shell, 120-lens assembly, 130-photosensitive element, 200-base, 210-spherical recess,

300-hinge assembly, 310-ball joint, 400-drive mechanism, 410-magnet, 420-drive coil,

500-hall sensor, 610-first electrical connection, 620-second electrical connection.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, an embodiment of the invention discloses a camera module, which is suitable for an electronic device to integrate a shooting function. The camera module disclosed in the embodiment of the present invention includes a camera 100, a base 200, a driving mechanism 400, and a detecting portion.

The camera 100 is a main component of the camera module, and the camera module acquires a collected image through the camera 100, so that a shooting function is realized. The camera head 100 generally includes a housing 100, a lens assembly 120, a focusing motor and a photosensitive element 130, etc., wherein the focusing motor drives the lens assembly 120 to move, thereby realizing automatic focusing of the camera head 100. The electronic device comprises a mainboard, the camera 100 needs to be powered when in use, and the camera 100 can be electrically connected with the mainboard through a first electric connector 610, so that power supply and information interaction are realized. The first electrical connector 610 is typically a circuit board and may also be a conductive cable.

The base 200 is a base member of the camera module, and provides a mounting base for other members of the camera module, and the camera module is generally mounted on the electronic device through the base 200.

The camera 100 is rotatably disposed on the base 200, that is, the camera 100 and the base 200 can rotate relatively. The driving mechanism 400 is disposed on the base 200, and the driving mechanism 400 is connected to the camera 100, so as to drive the camera 100 and the base 200 to move relatively. It should be understood that, since the camera head 100 as a whole performs the rotating motion, the photosensitive element 130 can also perform the rotating motion relative to the base 200.

When the camera 100 tilts with respect to the base 200, and the photosensitive element 130 tilts accordingly, in order to obtain the tilt angle of the photosensitive element 130, the camera module is provided with a detection portion for detecting the tilt angle of the photosensitive element 130. It should be understood that the angle compensation of the photosensitive element 130 can be accurately performed by the detecting portion detecting the inclination angle of the photosensitive element 130 with respect to the base 200 in real time. In the present embodiment, the specific type of the detection section is not limited, and for example, the detection section may be a gyroscope.

In a specific working process, the driving mechanism 400 drives the camera 100 to rotate to drive the photosensitive element 130 to rotate in a first direction by a compensation angle, the first direction is opposite to the inclination direction of the photosensitive element 130, and the compensation angle is equal to the inclination angle. It should be understood that, when the detecting portion detects that the photosensitive element 130 rotates and is in an inclined state, the driving mechanism 400 can drive the camera 100 to rotate to drive the photosensitive element 130 to rotate in the first direction in a reverse direction to implement angle compensation, and the rotational compensation angle is equal to the inclined angle, so that the photosensitive element 130 is separated from the inclined state during shooting, thereby implementing an anti-shake function and ensuring stability of an image.

At present, the anti-shake technology of a camera is usually implemented based on a moving or tilting lens assembly, in this process, a relative movement or a relative tilt may occur between the lens assembly 120 and the photosensitive element 130, in order to enable an imaging circle of the lens assembly 120 to completely cover an imaging area of the photosensitive element 130, the size of the lens assembly 120 must be increased, and then the structural space inside the electronic device is occupied, so that the structural layout inside the electronic device is limited. Meanwhile, in the anti-shake mode of the tilting lens assembly 120, the lens assembly 120 and the photosensitive element 130 are tilted to form a surface, so that the focus of the surrounding formation is not on the surface, and the surrounding of the image is blurred.

It should be noted that the camera module disclosed in the embodiment of the present invention implements angle compensation through the integral rotation of the camera 100, so that the lens assembly 120 and the photosensitive element 130 are always in the optimal corresponding state, thereby avoiding a relative tilt relationship or a relative movement relationship between the two, and further ensuring better imaging quality.

As can be seen from the above description, in the camera module disclosed in the embodiment of the present invention, the camera 100 is rotatably disposed on the base 200, when the camera performs the shooting and shakes, the camera 100 rotates relative to the base 200 to tilt the photosensitive element 130, the detecting portion detects the tilt angle of the photosensitive element 130, the driving mechanism 400 drives the camera 100 to rotate to drive the photosensitive element 130 to rotate in the first direction opposite to the tilt direction by the compensation angle, the compensation angle is equal to the tilt angle, so as to perform adaptive angle compensation on the photosensitive element 130 in the tilt direction, thereby preventing the shake problem from adversely affecting the shooting.

Compared with the existing anti-shake technology, the camera module disclosed by the embodiment of the invention avoids the relative movement and relative inclination of the lens assembly 120 and the photosensitive element 130, the lens assembly 120 can meet the imaging requirement by adopting a smaller size, and the internal structural layout of the electronic equipment can be optimized undoubtedly besides the basic function of anti-shake shooting.

In general, the end surface of the camera head 100 facing away from the lens assembly 120 is connected to the base 200, so that the anti-shake function of the camera module is more conveniently realized. In the present embodiment, no limitation is made on the specific rotational relationship of the camera head 100 and the base 200. In a particular embodiment, the camera head 100 may be rotatably coupled to the base 200 via a hinge assembly 300. It should be understood that, through the hinge assembly 300, the rotation of the camera head 100 can be realized, and thus the anti-shake compensation function of the camera module can be smoothly realized.

The coupling relationship between the hinge assembly 300 and the camera head 100 or the base 200 may be various, and the embodiment is not limited thereto. Specifically, the hinge assembly 300 may include a ball joint 310, and the camera head 100 or the base 200 has a ball recess 210 matching with the ball joint 310, and the ball joint 310 is rotatably fitted in the ball recess 210. It should be understood that the spherical joint 310 and the spherical recess 210 form a spherical hinge structure, and thus, the hinge assembly 300 can realize 360 ° rotation of the camera head 100 in the circumferential direction, so that the anti-shake compensation function of the camera head 100 covers the most comprehensive range. It should be noted that the first direction may be any direction of the camera 100 (i.e., the photosensitive element 130) in the circumferential direction of 360 °.

When the ball joint 310 is rotationally fitted in the spherical recess 210, a ball-and-socket fit relationship between the camera head 100 and the base 200 is achieved. Meanwhile, the spherical recess 210 can be coated outside the spherical joint 310, so that the spherical joint 310 is restrained and limited, and the problems of displacement and dislocation of the spherical joint 310 during working can be avoided.

Of course, the present embodiment does not limit the specific location of the spherical recess 210, and it may be opened in the camera 100 or in the base 200. Meanwhile, the present embodiment does not limit the specific shape type of the hinge assembly 300, and the hinge assembly 300 may further include the spherical recess 210 in addition to the aforementioned type including the spherical joint 310, at this time, the spherical joint 310 may be disposed on the camera head 100 or the base 200, and the spherical hinge relationship between the camera head 100 and the base 200 may also be realized, so that the camera head 100 is rotatably disposed on the base 200.

Further, the hinge assembly 300 may be a spherical structure. Taking the hinge assembly 300 and the base 200 connected to each other in a rotating manner as an example, in a specific installation process, a part of spherical surface of the hinge assembly 300 can be welded with the camera 100 to realize fixed fit, the base 200 can be provided with a spherical recess 210, and a part of spherical surface of the hinge assembly 300 is accommodated in the spherical recess 210, so as to realize a rotating connection relationship between the camera 100 and the base 200.

In the present embodiment, one of the camera head 100 and the base 200 is ball-hinged coupled to the hinge assembly 300, and the other is fixed coupled to the hinge assembly 300. The fixed matching relationship can be various, such as welding, bonding and the like; it should be noted that the hinge assembly 300 may be integrally formed with the camera head 100 or the base 200.

It should be noted that, because there is a swing gap between the camera head 100 and the base 200, heat inside the camera head 100 can be conducted to the swing gap through the housing 110, and the heat dissipation efficiency is increased due to the flow of air. Meanwhile, the hinge assembly 300 may be made of a good thermal conductor structure, such as silver, copper, graphite, etc., to further optimize the heat dissipation efficiency.

In this embodiment, the type of the driving mechanism 400 may be various, as long as the camera head 100 can be driven to rotate. Referring again to fig. 1 and 2, in an alternative, the drive mechanism 400 may include a magnet 410 and a drive coil 420, one of the magnet 410 and the drive coil 420 being coupled to the camera head 100 and the other being coupled to the base 200.

It should be understood that, based on the principle of magnetic effect of current, the driving coil 420 generates a first magnetic field around the driving coil 420 when being powered, and a second magnetic field exists around the magnet 410, and both the magnet 410 and the driving coil 420 are subjected to driving thrust under the interaction of the first magnetic field and the second magnetic field due to mutual repulsion of like magnetic poles. In this embodiment, specific arrangement relationships between the magnet 410 and the driving coil 420 and the camera head 100 and the base 200 are not limited, and taking the example that the driving coil 420 is connected to the base 200 and the magnet 410 is connected to the camera head 100, when the driving coil 420 is energized, the part of the camera head 100 opposite to the driving coil 420 is pushed to rotate.

The magnet 410 is generally plural, and the plural magnets 410 are arranged around the hinge assembly 300, that is, the plural magnets 410 are provided on the camera head 100 (or the base 200) and distributed around the hinge assembly 300; the driving coil 420 is generally plural, and the plural driving coils 420 are arranged around the hinge assembly 300, that is, the plural driving coils 420 are provided on the base 200 (or the camera head 100) and distributed around the hinge assembly 300. The magnets 410 are in one-to-one correspondence with the driving coils 420, that is, each magnet 410 has a corresponding driving coil 420 arranged oppositely, and the magnets and the driving coils are used in cooperation to generate driving thrust for angle compensation.

Similarly, for example, the driving coil 420 is connected to the base 200, and the magnet 410 is connected to the camera 100, during a specific operation, the camera 100 may rotate relative to the base 200 due to shaking, specifically, one side of the camera 100 inclines towards the base 200, at this time, the driving coil 420 corresponding to the side may be energized, the first magnetic field of the driving coil 420 interacts with the second magnetic field of the magnet 410, and then the camera 100 is driven to rotate in a reverse direction, specifically, the inclined side of the camera 100 is pushed to gradually get away from the base 200 under a driving action, and meanwhile, the photosensitive element 130 also gradually gets away from the base 200 at the side until the side is out of the inclined state. In this process, the angle compensation of the inclination of the photosensitive element 130 is realized, and the adverse effect of the shake problem on the shooting can be prevented.

The intensity of the first magnetic field generated by the driving coil 420 is directly influenced by the magnitude of the current, so that a larger current is generally introduced in the initial stage of the angle compensation, so that the camera 100 is greatly pushed, and the compensation efficiency of the photosensitive element 130 is improved; a small current is usually applied to the rear stage of the angle compensation, so that the pushing action of the camera 100 is reduced, the photosensitive element 130 is ensured to be stably separated from the inclined state, and excessive reverse rotation is avoided.

It should be noted that since different shake situations may cause the camera head 100 to rotate in different directions relative to the base 200, it is difficult to perform accurate angle compensation on the photosensitive element 130. In order to enable the angle compensation to be more accurate, in an alternative scheme, the detecting part may be a hall sensor 500, one of the hall sensor 500 and the magnet 410 is connected to the camera 100, the other is connected to the base 200, and the hall sensor 500 and the magnet 410 correspond one to one.

It should be understood that, since the camera head 100 is in a tilted state when the camera head 100 is relatively rotated with respect to the base 200, the distance between each magnet 410 and its corresponding hall sensor 500 varies. Meanwhile, in this process, the second magnetic field of each magnet 410 is changed, and the hall sensor 500 detects the change of the second magnetic field, thereby calculating the rotational posture and the tilt state of the camera 100, so that accurate angle compensation of the photosensitive element 130 can be achieved by supplying electricity to the driving coil 420 located at the tilt side of the camera 100, as described above.

Likewise, the present embodiment does not limit the specific arrangement relationship between the magnet 410 and the hall sensor 500 and the camera head 100 and the base 200, and the hall sensor 500 may be connected to the base 200 or the camera head 100. In one particular embodiment, the hall sensor 500 and the drive coil 420 may both be coupled to the base 200, and the magnet 410 is coupled to the camera head 100.

It should be appreciated that the hall sensor 500 and the driving coil 420 are both disposed on the base 200, so that the integration of the camera module is higher, and the structural layout inside the electronic device is optimized. Meanwhile, with such a configuration, it is more favorable for the hall sensor 500 and the magnet 410 to be correspondingly disposed, so as to improve the detection sensitivity of the hall sensor 500, and ensure that the rotation attitude and the tilt state of the camera 100 can be accurately captured.

Further, the driving coil 420 may be wound around the hall sensor 500. Under such setting, can further promote the space utilization of the module of making a video recording, simultaneously, when drive coil 420 and magnet 410 set up relatively, hall sensor 500 also sets up with magnet 410 relatively, on the basis of guaranteeing the magnetic field interact maximize between drive coil 420 and magnet 410, also makes hall sensor 500's detection sensitivity the highest.

Based on the camera module disclosed by the embodiment of the invention, the embodiment of the invention discloses electronic equipment, and the disclosed electronic equipment comprises the camera module. Electronic equipment includes the shell, and the shell provides the installation support basis for this module of making a video recording, has also played certain guard action simultaneously.

It should be noted that, part of the structure of the base 200 needs to be powered during operation, so the base 200 may generally include a second electrical connector 620 electrically connected to the motherboard to provide power and information interaction. In particular, the hall sensor 500 and the driving coil 420 provided on the base 200 may be connected to the second electrical connector 620. The second electrical connector 620 is typically a circuit board and may also be a conductive cable.

The electronic device in the embodiment of the present invention may be a smart phone, a tablet computer, an electronic book reader, a wearable device, or other devices, and the embodiment of the present invention does not limit the specific type of the electronic device.

In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The camera module is characterized by comprising a camera (100) with a photosensitive element (130), a base (200), a driving mechanism (400) and a detection part; wherein, camera (100) rotationally set up in on base (200), actuating mechanism (400) set up in base (200), just actuating mechanism (400) with camera (100) link to each other, the detection portion detects photosensitive element (130)'s inclination, actuating mechanism (400) drive camera (100) rotate and drive photosensitive element (130) rotate at first direction compensation angle, first direction with photosensitive element (130)'s incline direction is opposite, compensation angle with inclination equals.

2. The camera module of claim 1, wherein the camera head (100) is rotatably coupled to the base (200) by a hinge assembly (300).

3. The camera module according to claim 2, wherein the hinge assembly (300) comprises a ball joint (310), the camera head (100) or the base (200) is provided with a ball recess (210) matched with the ball joint (310), and the ball joint (310) is rotatably matched with the ball recess (210).

4. The camera module according to claim 2, wherein the drive mechanism (400) comprises a magnet (410) and a drive coil (420), one of the magnet (410) and the drive coil (420) being connected to the camera head (100) and the other being connected to the base (200).

5. The camera module of claim 4, wherein the plurality of magnets (410) are disposed about the hinge assembly (300), the plurality of drive coils (420) are disposed about the hinge assembly (300), and the plurality of drive coils (420) are disposed about the hinge assembly (300), the magnets (410) and the drive coils (420) corresponding one-to-one.

6. The camera module according to claim 5, wherein the detection part is a Hall sensor (500), one of the Hall sensor (500) and the magnet (410) is connected with the camera (100), the other one is connected with the base (200), and the Hall sensors (500) and the magnets (410) are in one-to-one correspondence.

7. The camera module of claim 6, wherein the hall sensor (500) and the drive coil (420) are both coupled to the base (200), and the magnet (410) is coupled to the camera head (100).

8. The camera module of claim 7, wherein the drive coil (420) is wound around the hall sensor (500).

9. An electronic apparatus, characterized by comprising the camera module according to any one of claims 1 to 8.

10. The electronic device of claim 9, further comprising a motherboard, the camera (100) being electrically connected to the motherboard by a first electrical connection (610), the base (200) being electrically connected to the motherboard by a second electrical connection (620).