CN112689075A

CN112689075A - Camera module and electronic equipment

Info

Publication number: CN112689075A
Application number: CN202011589406.XA
Authority: CN
Inventors: 吕跃辉; 齐永红
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-04-20
Anticipated expiration: 2040-12-28
Also published as: CN112689075B; WO2022143365A1

Abstract

The application discloses a camera module and electronic equipment, which belong to the technical field of communication equipment, wherein the camera module comprises a photosensitive chip, a main body part, a first reflector and a second reflector; the light sensing surface of the light sensing chip faces to a first direction; the main body part is positioned on one side of the photosensitive chip in the first direction, and a first reflector is arranged on the main body part and faces the first direction; the second reflector is positioned on one side of the first direction of the first reflector, faces the photosensitive chip and is movable along the first direction; the ambient light is reflected to the second reflector through the first reflector and then reflected to the photosensitive chip through the second reflector. The great problem of the thickness dimension of module of making a video recording can be solved to above-mentioned scheme.

Description

Camera module and electronic equipment

Technical Field

The application belongs to the technical field of communication equipment, and particularly relates to a camera module and electronic equipment.

Background

With the rapid development of electronic devices, the electronic devices are more and more widely used, and electronic devices such as mobile phones and tablet computers play more and more roles in the aspects of work, life, entertainment and the like of people. The camera shooting function is a basic function of the electronic equipment and can meet the shooting requirements of users. The camera function is usually implemented by a camera module of the electronic device.

The camera module in the related art needs to reserve a large space between the lens and the photosensitive chip in order to realize multiple zooming, so that the thickness of the camera module is large, and the large installation space in the electronic equipment is occupied.

Disclosure of Invention

The embodiment of the application aims to provide a camera module and electronic equipment, and the problem that the thickness of the camera module is large can be solved.

In order to solve the technical problem, the present application is implemented as follows:

the embodiment of the application provides a camera module, include:

the light sensing chip is provided with a light sensing surface facing a first direction;

the main body part is positioned on one side of the photosensitive chip in the first direction, and a first reflector is arranged on the main body part and faces the first direction;

a second mirror located on one side of the first direction of the first mirror and facing the light sensing chip, the second mirror being movable in the first direction;

the ambient light is reflected to the second reflector through the first reflector and then reflected to the photosensitive chip through the second reflector.

The embodiment of the application provides an electronic device, including foretell module of making a video recording.

In this application embodiment, the second mirror can be followed first direction and removed, consequently through removing the second mirror to change the distance between sensitization chip and the second mirror, thereby realize the focusing function of the module of making a video recording. In this scheme, light can effectively prolong the light path through twice reflection in the same thickness space, realizes many times zooming, can reduce the thickness size of the module of making a video recording, reduces the installation space that the module of making a video recording occupy electronic equipment.

Drawings

Fig. 1 is a schematic light transmission diagram of a camera module disclosed in an embodiment of the present application

Fig. 2 and fig. 3 are schematic structural diagrams of a camera module disclosed in the embodiment of the present application;

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

fig. 5 is a cross-sectional view of the camera module disclosed in the embodiment of the present application when the elevating cylinder is not extended;

fig. 6 is a cross-sectional view of the camera module disclosed in the embodiment of the present application when the lift cylinder is extended;

fig. 7 to 9 are schematic partial component views of the camera module disclosed in the embodiment of the present application.

Description of reference numerals:

100-light-transmitting cover plate, 110-mounting hole,

210-first reflector, 220-second reflector,

300-lifting cylinder, 310-matching projection, 320-annular groove,

400-main body part, 410-first cylinder, 411-guide hole, 412-first limit part, 420-second cylinder, 421-spiral guide structure, 422-second limit part, 430-mounting projection, 431-through hole,

500-photosensitive chip,

600-driving mechanism, 610-driving source, 620-gear, 630-meshing teeth, 640-worm,

700-balls,

800-lens assembly.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The following describes the camera module provided in the embodiments of the present application in detail through specific embodiments and application scenarios thereof with reference to the accompanying drawings.

Referring to fig. 1 to 9, an embodiment of the present application discloses a camera module applied to an electronic device, and the disclosed camera module includes a photosensitive chip 500, a main body 400, a first reflecting mirror 210, and a second reflecting mirror 220.

The photosensitive chip 500 is used for receiving an optical signal, which can be converted into image information. The photosensitive surface of the photosensitive chip 500 faces a first direction, which is an optical axis direction of the camera module and can also be understood as a thickness direction of the camera module. Optionally, the photosensitive chip 500 may be a photosensitive chip with high resolution, so that the camera module has better performance, and further the electronic device has better user experience. The photo-sensing chip 500 may be a CMOS (Complementary Metal Oxide Semiconductor) imaging chip.

The main body 400 is used to provide a mounting base for other components of the camera module. The main body 400 is located at one side of the first direction of the photosensitive chip 500, the main body 400 is provided with a first reflecting mirror 210, and the first reflecting mirror 210 faces the first direction. Optionally, the first reflector 210 may be attached to the inner surface of the main body 400, or the first reflector 210 is a reflective coating coated in the main body 400, and the specific structure of the first reflector 210 and the main body 400 is not limited herein.

The second reflecting mirror 220 is positioned at one side of the first direction of the first reflecting mirror 210, and the second reflecting mirror 220 faces the photosensitive chip 500, the second reflecting mirror 220 being movable in the first direction. That is, the moving direction of the second reflecting mirror 220 is along the optical axis direction of the camera module. The second reflecting mirror 220 can move in the first direction, and thus, the distance between the photosensitive chip 500 and the second reflecting mirror 220 is changed by moving the second reflecting mirror 220, thereby implementing a focusing function of the camera module.

In a specific operation process, the ambient light is reflected to the second reflecting mirror 220 through the first reflecting mirror 210, and then reflected to the photosensitive chip 500 through the second reflecting mirror 220.

In this embodiment of the present application, the second mirror 220 can move along the first direction, and thus the distance between the photosensitive chip 500 and the second mirror is changed by moving the second mirror 220, thereby realizing the focusing function of the camera module. In this scheme, light can effectively prolong the light path through twice reflection in the same thickness space, realizes many times zooming, can reduce the thickness size of the module of making a video recording to it occupies electronic equipment's installation space to reduce the module of making a video recording.

In the embodiment disclosed in the application, the number of the modules of making a video recording can set up to one, removes through drive second mirror 220 to realize the focusing of the module of making a video recording, and then make electronic equipment need not to set up a plurality of modules of making a video recording, make the module of making a video recording occupy electronic equipment's installation space less, and then make electronic equipment's size less.

In addition, the camera module can move the second reflecting mirror 220 to a position of a minimum distance from the photosensitive chip 500 when not in use, wherein the minimum distance is a position at which the focal length of the camera module is minimum. At the moment, the size of the camera module is small, so that the camera module occupies a small installation space of the electronic equipment, the size of the electronic equipment is small, the light weight and the thinness of the electronic equipment are improved, and user experience can be improved.

In addition, the first reflecting mirror 210 is disposed on the main body 400, thereby compressing the volume of the camera module and further making the thickness of the camera module smaller.

Simultaneously, the module of making a video recording can only set up one, and consequently the trompil of the installation module of making a video recording of seting up on the electronic equipment can only set up one to electronic equipment's outward appearance performance has been improved.

In the above embodiment, the second mirror 220 is kept away from the photosensitive chip 500 and is removed, can increase the focus of the module of making a video recording to make the module of making a video recording have longer focus, and then make the shooting performance of the module of making a video recording better. This scheme can enough make the module of making a video recording have longer focus, makes the volume of the module of making a video recording less again, has consequently improved the performance of the module of making a video recording.

In the above embodiment, the side of the main body 400 facing the second reflecting mirror 220 may be provided with a telescopic mechanism, and the telescopic mechanism drives the second reflecting mirror 220 to move, however, the surface of the side of the main body 400 facing the second reflecting mirror 220 needs to reserve the installation position of the telescopic mechanism, so as to compress the installation position of the first reflecting mirror 210, and further make the effective reflection area of the first reflecting mirror 210 smaller.

Based on this, in another alternative embodiment, the camera module disclosed in the present application may further include a lifting cylinder 300, and the lifting cylinder 300 may be sleeved outside the main body 400. The elevating cylinder 300 is movable in a first direction with respect to the main body 400. The second reflecting mirror 220 may be installed at an end of the lifting cylinder 300 away from the first reflecting mirror 210, and the lifting cylinder 300 may drive the second reflecting mirror 220 to move. In this scheme, the lifting cylinder 300 is sleeved outside the main body 400, so as not to occupy the installation space of the main body 400, and further, the effective reflection area of the first reflecting mirror 210 is large, and the reflection effect of the first reflecting mirror 210 is good.

In the above embodiment, the movement of the lifting cylinder 300 may be manually driven by the user, but the manual operation method has a problem of low accuracy. Based on this, in another optional embodiment, the camera module disclosed in this application may further include a driving mechanism 600, the driving mechanism 600 may be disposed on the main body 400, the driving mechanism 600 may be configured to drive the lifting cylinder 300 to move along the first direction, and the lifting cylinder 300 drives the second reflecting mirror 220 to move along the first direction. In this embodiment, the driving mechanism 600 can precisely drive the lifting cylinder 300 to move. Meanwhile, the user can trigger the driving mechanism 600 to move in a wireless control mode, so that the lifting cylinder 300 is driven to move, and the focusing operation of the camera module is more convenient to implement.

The lifting cylinder 300 can be driven to move by a plurality of structures capable of achieving corresponding driving functions, for example, a pneumatic transmission mechanism or a hydraulic transmission mechanism realized by a piston mechanism, a lead screw pair transmission mechanism realized by a lead screw mechanism, a transmission mechanism of a gear and rack structure and the like, or the lifting cylinder 300 can be driven to move by self shape reset by adopting a certain shape memory alloy.

In another alternative embodiment, the main body 400 may include a first cylinder 410 and a second cylinder 420, and the first cylinder 410 may be sleeved outside the second cylinder 420. The lifting cylinder 300 may be sleeved outside the first cylinder 410. The first mirror 210 may be located at an end of the second cylinder 420 remote from the second mirror 220.

The driving mechanism 600 may be disposed at the first cylinder 410, the driving mechanism 600 may be connected to the second cylinder 420 and drive the second cylinder 420 to rotate around an axial direction thereof, the elevator cylinder 300 may be provided with the fitting protrusion 310, the first cylinder 410 may be provided with a guide hole 411, and the guide hole 411 may extend in an axial direction of the elevator cylinder 300.

The second cylinder 420 may be provided with a spiral guide 421, the engaging protrusion 310 passes through the guide hole 411 to engage with the spiral guide 421, and the lifting cylinder 300 may move along the extending direction of the guide hole 411 when the driving mechanism 600 may drive the second cylinder 420 to rotate.

For example, when the second reflecting mirror 220 is far away from the photosensitive chip 500, the second cylinder 420 rotates towards the first direction, the spiral guiding structure 421 generates two component forces in the horizontal direction and the vertical direction to the engaging protrusion 310, the component force in the horizontal direction is offset by the side wall of the guiding hole 411, so that the engaging protrusion 310 cannot rotate along the circumferential direction of the second cylinder 420, and the component force in the vertical direction drives the engaging protrusion 310 to move along the vertical direction, thereby driving the lifting cylinder 300 to move along the vertical direction.

When the second reflecting mirror 220 approaches the photosensitive chip 500, the second cylinder 420 rotates towards the second direction, and the component force is the same as the component force of the second reflecting mirror 220 far from the photosensitive chip 500, but the direction of the component force is different. And therefore will not be described in detail herein. One of the first direction and the second direction may be a clockwise direction, and the other may be a counterclockwise direction.

In this scheme, through the sliding fit of cooperation arch 310 with spiral guide structure 421 and guiding hole 411, can realize the relative position change between a section of thick bamboo 300 and main part 400 to make the simple structure of the module of making a video recording, the cost of manufacture is lower.

In order to reduce the friction force when the first cylinder 410 and the second cylinder 420 rotate, thereby preventing the second cylinder 420 from jamming and the like in the rotating process. In another optional embodiment, the camera module disclosed in the embodiment of the present application may further include at least three balls 700, and the at least three balls 700 may be spaced apart along the circumferential direction of the first cylinder 410. At least three balls 700 are rollable with respect to the first cylinder 410 and the second cylinder 420. The first cylinder 410 supports the second cylinder 420 by at least three balls 700. In this case, the contact area between the ball 700 and the first and

second cylinders

410 and 420 is small, and thus the rotation between the first and

second cylinders

410 and 420 is more flexible. Meanwhile, the balls 700 are in rolling fit with the first cylinder 410 and the second cylinder 420, and the friction coefficient of the rolling fit is smaller than that of the sliding fit, so that the second cylinder 420 can rotate relative to the first cylinder 410 more easily, and phenomena such as jamming are not easy to occur.

In addition, the number of the balls 700 is at least three, and the three balls 700 can stably support the second cylinder 420, so that the second cylinder 420 is relatively balanced in stress and is not easy to incline.

In the above embodiment, when the pre-pressure of the first cylinder 410 and the second cylinder 420 on the ball 700 is small, the ball 700 may fall from between the first cylinder 410 and the second cylinder 420, thereby affecting the rotation of the second cylinder 420. Based on this, in another optional embodiment, at least one of the first cylinder 410 or the second cylinder 420 may be provided with at least three sliding grooves, the sliding grooves may extend along the circumferential direction of the first cylinder 410, at least three balls 700 are in one-to-one correspondence with the at least three sliding grooves, and each ball 700 is in sliding fit with the corresponding sliding groove. In this scheme, the spout can be injectd ball 700's sliding position to prevent ball 700 from dropping, and then be difficult to influence second barrel 420 and rotate.

In addition, the spout can also carry on spacingly to the sliding distance of ball 700 to assist spacingly to the turned angle of second barrel 420, prevent that second barrel 420 from transitionally rotating.

In the above embodiment, the transitional rotation of the second cylinder 420 easily applies a large force to the screw guide 421 or the fitting projection 310, thereby causing damage to the screw guide 421 or the fitting projection 310. In another alternative embodiment, the first cylinder 410 may be provided with a first position-limiting portion 412, and the second cylinder 420 may be provided with a second position-limiting portion 422, and the first position-limiting portion 412 and the second position-limiting portion 422 are in position-limiting fit in the rotation direction of the first cylinder 410. In this scheme, first spacing portion 412 and second spacing portion 422 can carry on spacingly to the turned angle of second barrel 420 to prevent that second barrel 420 from transitionally rotating, and then make the module security and the reliability of making a video recording higher.

Alternatively, the rotation angle of the second cylinder 420 may be 30 °, 45 °, 60 °, or the like, and of course, the second cylinder 420 may also be another rotation angle, which is not limited herein.

Further, the first stopper portion 412 may be a stopper recess, and the stopper recess may extend in a circumferential direction of the first cylinder 410. The second position-limiting portion 422 may be a position-limiting protrusion, and at least a portion of the position-limiting protrusion may be located in the position-limiting recess. In this scheme, spacing arch can stretch into spacing concave part, consequently makes the stack height of second barrel 420 and first barrel 410 lower, consequently has further reduced the height of camera module.

In another alternative embodiment, the spiral guiding structure 421 may be a spiral groove, i.e. recessed on the sidewall of the second cylinder 420 in a non-penetrating manner, so as to ensure the strength of the whole second cylinder 420. Or the spiral guide structure 421 may also be a spiral hole, i.e. disposed on the sidewall of the second cylinder 420 in a penetrating manner, which can facilitate the assembly between the spiral guide structure 421 and the fitting protrusion 310 under the condition of ensuring the strength of the second cylinder 420 to meet the use requirement. Meanwhile, it should be noted that, no matter the spiral guide structure 421 is made into a spiral hole or a spiral groove, the length and the spiral angle thereof can be used to comprehensively determine the stroke of the matching protrusion 310 in the moving direction thereof, so as to control the extending amount and the retracting amount of the second reflecting mirror 220 relative to the main body 400, and control the second reflecting mirror 220 more accurately.

In another alternative embodiment, the number of the fitting protrusions 310 may be plural, and the plural fitting protrusions 310 may be provided at intervals along the circumference of the elevator cylinder 300. The number of the spiral guide structures 421 may be plural, and the plural spiral guide structures 421 may be arranged at intervals. The number of the guide holes 411 may be plural, and the plural guide holes 411 are arranged at intervals. Each of the fitting protrusions 310 may pass through the corresponding guide hole 411 and be fitted with the corresponding spiral guide 421. In this scheme, the number and the positions of the spiral guide structures 421, the guide holes 411 and the engaging protrusions 310 correspond to each other, and each corresponding spiral guide structure 421 corresponds to one engaging protrusion 310 in sliding fit, so that the driving mechanism 600 can transmit the lifting cylinder 300 more stably in a multipoint fitting manner, thereby preventing the lifting cylinder 300 from tilting during the movement.

In another alternative embodiment, the driving mechanism 600 may include a driving source 610 and a gear 620. The first cylinder 410 may be provided with an escape hole, and the second cylinder 420 may be provided with a plurality of engagement teeth 630 engageable with the driving source 610. A plurality of the engagement teeth 630 may be distributed along the circumference of the second cylinder 420. The drive source 610 extends into the relief hole to engage the plurality of engagement teeth 630. The driving source 610 may drive the second cylinder 420 to rotate through the gear 620 and the plurality of engaging teeth 630.

In this scheme, actuating mechanism 600 and second barrel 420 are connected through meshing transmission's mode drive, and meshing transmission has the advantage that transmission efficiency and transmission precision are all higher, and then has improved second barrel 420's control accuracy.

Further, the plurality of engagement teeth 630 and the second cylinder 420 may be a unitary structural member. Thus, the camera module and the camera module are convenient to integrally disassemble and assemble, and the assembling performance of the camera module is improved.

Alternatively, the driving source 610 may be a driving motor or an ultrasonic motor, but the driving source 610 may also be other driving structures, which is not limited herein.

In another alternative embodiment, the driving mechanism 600 may further include a worm 640, and the worm 640 may be connected to the driving source 610. The worm 640 may be engaged with the gear 620. The drive source 610 may drive the rotation of the gear 620 via the worm 640. In this scheme, the meshing transmission has the advantage that transmission efficiency and transmission precision are all higher, has further improved the control accuracy of second barrel 420.

In another alternative embodiment, the camera module disclosed in the present application may further include a light-transmitting cover plate 100, and the light-transmitting cover plate 100 may cover an end of the lifting cylinder 300 away from the photosensitive chip 500. The second reflecting mirror 220 may be disposed on the light-transmissive cover plate 100, and the second reflecting mirror 220 is located in the middle of the light-transmissive cover plate 100.

In a specific operation process, after the ambient light transmits through the transparent cover plate 100, the ambient light is reflected to the second reflecting mirror 220 through the first reflecting mirror 210, and then reflected to the photosensitive chip 500 through the second reflecting mirror 220.

In this scheme, printing opacity apron 100 can play the guard action to other parts in the module of making a video recording, and then has improved the module security and the reliability of making a video recording.

Optionally, the light-transmitting cover plate 100 may be made of transparent glass or transparent plastic, and of course, the light-transmitting cover plate 100 may also be made of other light-transmitting materials, which is not limited herein.

In order to increase the optical path length of the camera module, in another alternative embodiment, the transparent cover plate 100 is provided with a mounting hole 110, and the second reflecting mirror 220 can be mounted in the mounting hole 110. In this scheme, when the position of the transparent cover plate 100 and the main body 400 is not changed, and the second reflecting mirror 220 is installed in the installation hole 110, the distance between the second reflecting mirror 220 and the first reflecting mirror 210 is increased, so that the optical path length of the camera module is increased, and the focal length of the camera module is increased.

In another alternative embodiment, the end of the lifting cylinder 300 may be opened with an annular groove 320, and the light-transmitting cover plate 100 may be located in the annular groove 320. In this scheme, the light-transmitting cover plate 100 is located in the annular groove 320, so that the overall height of the component formed by the lifting cylinder 300 and the light-transmitting cover plate 100 is smaller, and the height of the camera module is further reduced. Meanwhile, the light-transmitting cover plate 100 is hidden in the annular groove 320, so that the lifting cylinder 300 is prevented from colliding with the edge of the light-transmitting cover plate 100 in the moving process, and the light-transmitting cover plate 100 is prevented from being damaged.

In another alternative embodiment, the camera module disclosed herein may further include a lens assembly 800. The side of the main body 400 facing the second reflecting mirror 220 may be provided with a mounting protrusion 430, the mounting protrusion 430 may be provided with a through hole 431, the through hole 431 may be disposed opposite to the photosensitive chip 500, and the lens assembly 800 may be located in the through hole 431. The lens assembly 800 may be located between the photosensitive chip 500 and the reflective part 200.

The ambient light can be reflected to the second reflecting mirror 220 through the first reflecting mirror 210, reflected to the lens assembly 800 by the second reflecting mirror 220, and transmitted to the photosensitive chip 500 through the lens assembly 800.

In this scheme, lens assembly 800 can converge the light that enters into photosensitive chip 500 to can improve the shooting performance of electronic equipment.

Further, the through hole 431 that the installation arch 430 was seted up can be the shoulder hole, and the great hole in aperture sets up in one side of sensitization chip 500, and the less hole in aperture is used for installing lens subassembly 800, and in this scheme, the shoulder hole can be favorable to preventing that miscellaneous light from getting into sensitization chip 500 to improve the shooting performance of the module of making a video recording.

Alternatively, the photosensitive chip 500 may be disposed on the first barrel 410, and the photosensitive chip 500 may also be disposed on a device main body of the electronic device, such as a housing of the electronic device, a circuit board, and the like, where the specific location of the photosensitive chip is not limited herein.

Based on the module of making a video recording that this application embodiment disclosed, this application embodiment still discloses an electronic equipment, and the electronic equipment who discloses includes any embodiment of the above module of making a video recording.

The electronic equipment disclosed by the embodiment of the application can be equipment such as a smart watch, a smart phone and a tablet computer, and the embodiment of the application does not limit the specific type of the electronic equipment.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a module of making a video recording which characterized in that includes:

2. The camera module of claim 1, further comprising a lifting cylinder, wherein the lifting cylinder is sleeved outside the main body, the lifting cylinder is movable relative to the main body along the first direction, the second reflector is mounted at an end of the lifting cylinder away from the first reflector, and the lifting cylinder can drive the second reflector to move.

3. The camera module of claim 2, further comprising a drive mechanism disposed on the main body portion, the drive mechanism configured to drive the lift cylinder to move in the first direction.

4. The camera module according to claim 3, wherein the main body comprises a first cylinder and a second cylinder, the first cylinder is sleeved outside the second cylinder, the lifting cylinder is sleeved outside the first cylinder, and the first reflector is located at an end of the second cylinder away from the second reflector;

the driving mechanism is arranged on the first cylinder body, the driving mechanism is connected with the second cylinder body and drives the second cylinder body to rotate around the axial direction of the second cylinder body, the lifting cylinder is provided with a matching bulge, the first cylinder body is provided with a guide hole, and the guide hole extends along the axial direction of the lifting cylinder;

the lifting barrel is characterized in that a spiral guide structure is arranged on the second barrel, the matching protrusion penetrates through the guide hole to be matched with the spiral guide structure, and the driving mechanism drives the lifting barrel to move along the extending direction of the guide hole under the condition that the second barrel rotates.

5. The camera module of claim 4, further comprising at least three balls spaced circumferentially about the first cylinder, the at least three balls being rollable relative to the first cylinder and the second cylinder, the first cylinder supporting the second cylinder via the at least three balls.

6. The camera module according to claim 5, wherein at least one of the first cylinder or the second cylinder has at least three sliding grooves extending along a circumferential direction of the first cylinder, at least three balls are in one-to-one correspondence with the at least three sliding grooves, and each ball is in sliding fit with the corresponding sliding groove.

7. The camera module of claim 4, wherein the helical guide structure is a helical groove or a helical hole.

8. The camera module of claim 4, wherein the number of the engaging protrusions is plural, the plural engaging protrusions are spaced apart from each other along a circumferential direction of the lifting cylinder, the number of the spiral guide structures is plural, the plural spiral guide structures are spaced apart from each other, the number of the guide holes is plural, the plural guide holes are spaced apart from each other, and each engaging protrusion passes through a corresponding guide hole and engages with a corresponding spiral guide structure.

9. The camera module according to claim 4, wherein the driving mechanism includes a driving source and a gear, the first cylinder is provided with an avoiding hole, the second cylinder is provided with a plurality of engaging teeth which can be engaged with the gear, the engaging teeth are distributed along the circumferential direction of the second cylinder, the gear extends into the avoiding hole and is engaged with the engaging teeth, and the driving source drives the second cylinder to rotate through the gear and the engaging teeth.

10. The camera module of claim 9, wherein the drive mechanism further comprises a worm, the worm is connected to the drive source, the worm is engaged with the gear, and the drive source drives the gear to rotate through the worm.

11. The camera module according to claim 2, further comprising a transparent cover plate, wherein the transparent cover plate covers an end of the lifting cylinder away from the photosensitive chip, the second reflecting mirror is disposed on the transparent cover plate, and the second reflecting mirror is located in a middle portion of the transparent cover plate, wherein after the ambient light passes through the transparent cover plate, the ambient light is reflected to the second reflecting mirror by the first reflecting mirror and then reflected to the photosensitive chip by the second reflecting mirror.

12. The camera module of claim 11, wherein the transparent cover defines a mounting hole, and the second reflector is mounted in the mounting hole.

13. The camera module of claim 11, wherein an annular groove is defined in an end of the lift cylinder, and the light-transmissive cover plate is disposed in the annular groove.

14. The camera module according to claim 1, further comprising a lens assembly, wherein a mounting protrusion is disposed on a side of the main body facing the second reflecting mirror, the mounting protrusion has a through hole, the through hole is disposed opposite to the photosensitive chip, the lens assembly is disposed in the through hole, the lens assembly is disposed between the photosensitive chip and the second reflecting mirror, and the ambient light is reflected to the second reflecting mirror through the first reflecting mirror, reflected to the lens assembly by the second reflecting mirror, and then transmitted to the photosensitive chip through the lens assembly.

15. An electronic apparatus comprising the camera module according to any one of claims 1 to 14.