CN115857132A

CN115857132A - Camera module and electronic equipment

Info

Publication number: CN115857132A
Application number: CN202111120891.0A
Authority: CN
Inventors: 周帅宇; 任广旭; 王腾; 黄彪
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2023-03-28
Also published as: WO2023045842A1

Abstract

The application provides a camera module and electronic equipment belongs to the electronic equipment field. The camera module comprises a first lens assembly, a second lens assembly and a mounting seat, wherein the first lens assembly and the second lens assembly are arranged on the mounting seat, the first lens assembly comprises a first lens assembly and a first driving assembly, the second lens assembly comprises a second lens assembly, a third lens assembly, a second driving assembly and a first elastic piece, and the first lens assembly, the second lens assembly and the third lens assembly are coaxially arranged; the first driving assembly is connected with the first lens assembly and used for driving the first lens assembly to move along the first axial direction; the second driving assembly is connected with the third lens assembly and used for driving the third lens assembly to move along the first axial direction; the first elastic piece is clamped between the second lens assembly and the third lens assembly and is arranged in a compressed state; the first elastic element can enable the first lens assembly and the second lens assembly to generate relative displacement.

Description

Camera module and electronic equipment

Technical Field

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

Background

At present, the requirements of users of intelligent terminals on images are higher and higher, the intelligent terminals are expected to take photos like professional cameras, and the industry trend develops towards larger bases and larger apertures, so that the size of a lens is increased, and the number of lenses is more. However, the internal space of the intelligent terminal is very limited, and the intelligent terminal has become a bottleneck restricting the development of images in the mobile phone industry at present.

In the prior art, the lens is often made into a telescopic mode, the height space is increased through stretching, the diffraction limit and the light incoming amount are improved, and the optical performance is improved. However, the lens barrel needs to have not only a telescopic function but also a focusing function, and the telescopic lens is usually difficult to focus multiple groups of lenses with different optical structures in consideration of its own telescopic structure and miniaturized module design, which results in a complex structure of the current telescopic lens.

Disclosure of Invention

The embodiment of the application provides a camera module to solve the problem that the structure of the existing telescopic lens is complex.

In a first aspect, an embodiment of the present application provides a camera module, which includes a first lens assembly, a second lens assembly, and a mounting base, where the first lens assembly and the second lens assembly are disposed on the mounting base, the first lens assembly includes a first lens assembly and a first driving assembly, the second lens assembly includes a second lens assembly, a third lens assembly, a second driving assembly, and a first elastic member, where,

the first lens assembly, the second lens assembly and the third lens assembly are coaxially arranged;

the first driving assembly is connected with the first lens assembly and is used for driving the first lens assembly to move along a first axial direction; the second driving assembly is connected with the third lens assembly and is used for driving the third lens assembly to move along the first axial direction; the first elastic piece is clamped between the second lens assembly and the third lens assembly and is arranged in a compressed state; the first elastic piece can enable the first lens component and the second lens component to generate relative displacement.

In a second aspect, an embodiment of the present application further provides an electronic device, including the camera module according to the first aspect.

In this embodiment, the camera module may include a first lens assembly and a second lens assembly, the first lens assembly includes a first lens assembly and a first driving assembly, the second lens assembly includes a second lens assembly, a third lens assembly, a first elastic element and a second driving element, because the first lens assembly, the second lens assembly and the third lens assembly are sequentially arranged and coaxially disposed, the first elastic element is compressed and clamped between the second lens assembly and the third lens assembly, so that a relative displacement is generated between the first lens assembly and the second lens assembly, and thus the camera module may be matched with the first driving assembly, the second driving assembly and the first elastic element, thereby implementing the functions of lens expansion and focusing, and further simplifying the structure of the camera module.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic cross-sectional structure diagram of a camera module provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a camera module provided in the embodiment of the present application;

fig. 3 is an exploded view of a camera module according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of an active lens barrel in a camera module according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a driven lens barrel in a camera module according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a second lens barrel in the camera module according to the embodiment of the present application;

fig. 7 is a schematic structural diagram of a first lens barrel in a camera module according to an embodiment of the present application;

fig. 8 is a schematic view of a fitting structure of a second lens assembly and a mounting seat according to an embodiment of the present disclosure;

fig. 9 is a second schematic view illustrating a second fitting structure of the second lens assembly and the mounting base according to the embodiment of the present application;

FIG. 10 is a schematic structural diagram of a third elastic element provided in an embodiment of the present application;

fig. 11 is a schematic view of a portion of a second lens assembly according to an embodiment of the present disclosure;

fig. 12 is a second schematic structural diagram of a second lens assembly according to an embodiment of the present application.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting 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 embodiments and features of the embodiments described below can be combined with each other without conflict. 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 features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specified. 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.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 8, the present application provides a camera module, which includes a first lens assembly 10, a second lens assembly 20, and a mounting base 30, wherein the first lens assembly 10 and the second lens assembly 20 are both disposed on the mounting base 30, the first lens assembly 10 includes a first lens assembly 11 and a first driving assembly 12, the second lens assembly 20 includes a second lens assembly 21, a third lens assembly 22, a second driving assembly 23, and a first elastic member 24, wherein,

the first lens assembly 11, the second lens assembly 21 and the third lens assembly 22 are sequentially arranged and coaxially arranged, and the first lens assembly 11 is abutted against the second lens assembly 21;

the first driving assembly 12 is connected with the first lens assembly 11, and the first driving assembly 12 is used for driving the first lens assembly 11 to move along the first axial direction; the second driving assembly 23 is connected with the third lens assembly 22, and the second driving assembly 23 is used for driving the third lens assembly 22 to move along the first axial direction; the first elastic element 24 is clamped between the second lens assembly 21 and the third lens assembly 22 and is arranged in a compressed state; the first elastic element 24 can generate a relative displacement between the first lens assembly 11 and the second lens assembly 21.

In this embodiment of the present application, the first lens assembly 10 and the second lens assembly 20 may be two groups of different optical architectures, and the camera can realize lens expansion and contraction and focusing functions of the camera by driving the displacement of the lenses of different groups and by matching the lenses of different groups, so as to realize different shooting effects.

The first lens assembly 10 and the second lens assembly 20 may be disposed on the same mounting base 30, referring to fig. 1, and as shown in fig. 1, in order to reduce the occupied space, the first lens assembly 10 may be sleeved outside the second lens assembly 20. Of course, in other alternative embodiments, the first lens assembly 10 and the second lens assembly 20 may be disposed at different heights, or the second lens assembly 20 may be sleeved outside the first lens assembly 10, which is not illustrated herein.

Of course, in some embodiments, the first lens assembly 10 and the second lens assembly 20 may be sequentially disposed along a horizontal direction, that is, the mount may be provided with corresponding brackets, through which the first lens assembly 11, the second lens assembly 21 and the third lens assembly 22 are sequentially distributed along the horizontal axial direction, which is not limited herein.

Specifically, the first lens assembly 10 may include a first driving assembly 12 and a first lens assembly 11, and the first driving assembly 12 drives the first lens assembly 11 to move, so as to change the vertical height of the first lens assembly 11, thereby achieving the extension and retraction of the first lens assembly 10. It is understood that the first lens assembly 10 may further include a housing or a lens barrel structure to accommodate the first lens assembly 11 and realize lens extension and retraction.

The second lens assembly 20 may include a second lens assembly 21, a third lens assembly 22, a first elastic member 24 and a second driving assembly 23, and in order to achieve the matching of the first lens assembly 10 and the second lens assembly 20, the first lens assembly 11, the second lens assembly 21 and the third lens assembly 22 may be coaxially arranged and sequentially arranged.

With reference to fig. 1, in fig. 1, the distances from the first lens assembly 11, the second lens assembly 21, and the third lens assembly 22 to the mounting base 30 gradually increase, that is, are sequentially arranged from top to bottom, and the central axes of the first lens assembly 11, the second lens assembly 21, and the third lens assembly 22 are the same, so that the light can simultaneously pass through the first lens assembly 11, the second lens assembly 21, and the third lens assembly 22, and then is incident on the photo sensor chip.

It should be understood that, in other embodiments, the distances from the first lens assembly 11, the second lens assembly 21, and the third lens assembly 22 to the mounting base 30 may also be gradually decreased, that is, arranged sequentially from bottom to top, and may be specifically set according to actual needs.

It can be understood that, since the first lens assembly 11 abuts against the second lens assembly 21 and the first elastic element 24 is disposed in a compressed state, the first elastic element 24 always provides the elastic force for the second lens assembly 21 to move toward the first lens assembly 11, so that the first lens assembly 11 is driven by the first driving assembly 12 and moves along the first axial direction along the direction away from the second lens assembly 21 in the first axial direction, and the elastic force of the first elastic element 24 can make the second lens assembly 21 move along the first axial direction along with the first lens assembly 11 until the elastic force provided by the first elastic element 24 is equal to the self gravity of the second lens assembly 21. The first axial direction may be a direction along a central axis of the first lens assembly 11, and may specifically include a first direction away from the mount 30 and a second direction close to the mount 30.

Further, after second lens subassembly 21 stop motion, above-mentioned first lens subassembly 11 can also continue along first axial motion, when reaching first predetermined clearance between first lens subassembly 11 and second lens subassembly 21, above-mentioned second drive assembly 23 can drive third lens subassembly 22 along first axial motion, thereby because the elastic force drive second lens subassembly 21 of first elastic component 24 continues along first axial motion, finally make the camera lens of camera module be in the state of extending completely, thereby extend through the camera lens, improve diffraction limit and light inlet, and then promote optical property.

When the lens of the camera module is contracted from the expansion state, the third lens component 22 can move along the direction close to the mounting seat 30 first, when the second preset gap is reached between the second lens component 21 and the first lens component 11, the first lens component 11 moves along the direction close to the mounting seat 30, and finally the first lens component 11 pushes the second lens component 21 to compress the first elastic piece 24 until the lens of the camera module is in the complete contraction state.

Simultaneously, the camera module can drive third lens subassembly 22 through the third drive assembly and remove to drive second lens subassembly 21 through first elastic component 24 and remove, thereby change the distance between first lens subassembly 11 and the second lens subassembly 21, realize focusing and zoom. It should be understood that, since the process of focusing and zooming and the process of lens expansion and contraction are performed in a time-sharing manner, the distance between the second lens assembly 21 and the third lens assembly 22 is always kept substantially constant during the focusing process, that is, the length of the first elastic element 24 after being deformed by the gravity of the second lens assembly 21.

The first lens assembly 11 may include one or more lenses, wherein the lenses may be stacked or disposed at intervals, and the lenses may have the same or different shapes, thicknesses, and materials, and may be specifically disposed according to actual needs, and form a group of optical structures by combining one or more lenses. Similarly, the second lens element 21 and the third lens element 22 may also include one or more lenses, and since the distance between the second lens element 21 and the third lens element 22 is usually kept constant during the focusing process, the second lens element 21 and the third lens element 22 may be regarded as the same group of optical structures.

The first elastic member 24 may be made of an elastic material having an elastic coefficient, and to ensure the strength and the service life of the first elastic member 24, the first elastic member 24 may be embodied as a coil spring made of spring steel.

In this embodiment, the camera module may include a first lens assembly 10 and a second lens assembly 20, the first lens assembly 10 includes a first lens assembly 11 and a first driving assembly 12, the second lens assembly 20 includes a second lens assembly 21, a third lens assembly 22, a first elastic element 24 and a second driving element, because the first lens assembly 11, the second lens assembly 21 and the third lens assembly 22 are sequentially arranged and coaxially disposed, and the first elastic element 24 is clamped between the second lens assembly 21 and the third lens assembly 22 in a compressed state, a relative displacement may be generated between the first lens assembly 11 and the second lens assembly 21, so that the camera module may implement lens expansion and focusing functions through the cooperation of the first driving assembly 12, the second driving assembly 23 and the first elastic element 24, thereby simplifying the structure of the camera module.

Optionally, the first lens assembly 10 further includes a transmission assembly 13, the transmission assembly 13 includes a displacement transmission member 131, a driving lens barrel 132 and a driven lens barrel 133, the driving lens barrel 132 is sleeved outside the driven lens barrel 133; the displacement transmission member 131 is connected to the first driving assembly 12, and the displacement transmission member 131 is connected to the driving lens barrel 132;

the first driving assembly 12 drives the driving lens barrel 132 to rotate through the displacement transmission member 131;

the driven lens barrel 133 is slidably connected with the driving lens barrel 132, and the driven lens barrel 133 is connected with the first lens assembly 11; when the driving barrel 132 rotates from the first state to the second state, the driven barrel 133 drives the first lens assembly 11 to move from the first position to the second position, and the vertical height of the first position is different from the vertical height of the second position.

In the embodiment of the present application, the first lens assembly 10 may further include a transmission assembly 13, and the transmission assembly 13 drives the first lens assembly 11 to move. It can be understood that the displacement transmission member 131 may be a rack or a rail, so that the driving lens barrel 132 is driven to rotate by the movement of the displacement transmission member 131 or the change of the form of the displacement transmission member 131, and the driven lens barrel 133 is driven to move.

For example, the first driving assembly 12 may be a structure of a stepping motor cooperating with a worm gear, and the displacement transmission member 131 may be a rack, the worm is driven by the stepping motor to rotate, so as to drive the worm gear to rotate, and the rotation of the worm gear drives the rack to rotate along the circumferential direction of the driving lens barrel 132, and in some embodiments, if the rack is fixedly connected to the driving lens barrel 132, the rotation of the rack may further drive the driving lens barrel 132 to rotate.

Of course, in some embodiments, referring to fig. 2, as shown in fig. 2, the displacement transmission member 131 may also be movably connected to the driving lens barrel 132, and the driving lens barrel 132 is driven to rotate by providing an elastic member to cooperate with the rack, which is not limited herein.

It can be understood that the driven lens barrel 133 and the driving lens barrel 132 may be in a sleeved relationship, specifically, the driven lens barrel 133 may be sleeved outside the driving lens barrel 132, or the driving lens barrel 132 may also be sleeved outside the driven lens barrel 133. Specifically, the driven lens barrel 133 and the driving lens barrel 132 may be coupled to each other through a sliding guide slot and a slider, so that the driving lens barrel 132 is rotated along the sliding guide slot, and the driven lens barrel 133 is moved from the first position to the second position by setting the length and the inclination angle of the sliding guide slot.

When the driving barrel 132 rotates to the first state, the driven barrel 133 is located at the first position, and when the driving barrel 132 rotates to the second state, the driven barrel 133 is located at the second position. The vertical height of the first position and the vertical height of the second position are the height obtained by measuring with reference to the same reference plane, and the driven lens barrel 133 moves to the vertical height of the second position from the vertical height of the first position, so that the first lens assembly 11 connected with the driven lens barrel 133 can be driven to move, the vertical height of the first lens assembly 11 is changed, and the telescopic or focusing of the lens is realized.

It can be understood that the rotation direction of the driving lens barrel 132 may correspond to the telescopic state of the camera module, when the driving lens barrel 132 rotates along the first rotation direction, the camera module is driven by the driving lens barrel 132 to change to the extended state, and when the driving lens barrel 132 rotates along the second rotation direction, the camera module is driven by the driving lens barrel 132 to change to the retracted state.

In the embodiment of the present application, the camera module can convert the rotation of the driving lens barrel 132 into the movement of the driven lens barrel 133 in the vertical height direction through the cooperation between the displacement transmission member 131 in the transmission assembly 13 and the driving lens barrel 132 and the driven lens barrel 133, so as to change the vertical height of the first lens assembly 11, and achieve the telescopic or focusing of the lens. The displacement is transmitted through the transmission assembly 13, so that the stability of the first lens assembly 11 in the motion process can be improved, and the precision of the lens during stretching or focusing is improved.

It should be noted that, when the first lens assembly 11, the second lens assembly 21 and the third lens assembly 22 are sequentially distributed along the horizontal axial direction, the movement of the first lens assembly 11 between the first position and the second position may cause the position of the first lens assembly 11 in the first axial direction to change.

Further, the displacement transmission member 131 includes a connection member 1311 and a second elastic member 1312, the connection member 1311 is connected to the first driving assembly 12, and the connection member 1311 can slide between a third position and a fourth position along the circumferential direction of the driving barrel 132;

the second elastic member 1312 is disposed along the circumferential direction of the driving barrel 132, one end of the second elastic member 1312 is fixedly connected to the connecting member 1311, the other end of the second elastic member 1312 abuts against the driving barrel 132, and the second elastic member 1312 is disposed in a compressed state;

when the connecting member 1311 moves from the third position to the fourth position, the second elastic member 1312 drives the driving barrel 132 to rotate from the first state to the second state.

In the embodiment of the present application, referring to fig. 4, the displacement transmission member 131 may include a connection member 1311 and a second elastic member 1312, and the connection member 1311 is driven by the first driving assembly 12 to slide along the circumferential direction of the driving barrel 132.

In a specific embodiment, the connecting member 1311 may be a rack that is disposed in an arc shape, and the connecting member 1311 may be engaged with the first driving assembly 12, so as to move along the circumferential direction of the driving barrel 132 under the driving of the first driving assembly 12. The driving lens barrel 132 may be provided with a sliding guide rail along the circumferential direction, of course, the sliding guide rail may be provided on the mounting base 30, and the connecting member 1311 may be slidably connected to the sliding guide rail and may move along the sliding guide rail. In this case, the third position and the fourth position may be determined for both ends of the slide rail.

The second elastic member 1312 may be disposed at one side of the connecting member 1311 and along the circumferential direction of the driving lens barrel 132, and one end of the second elastic member 1312 may abut against the mounting seat 30, in the above embodiment, for example, one end of the connecting member 1311 may be provided with a limit stop, the driving lens barrel 132 may also be provided with a protruding limit stop on an outer wall, one end of the second elastic member 1312 may be fixedly connected to the limit stop of the sliding guide, and the other end may abut against the limit stop of the driving lens barrel 132. Further, the second elastic element 1312 may be disposed on the limiting rod, so as to prevent the second elastic element 1312 from being out of position.

In order to extend the lens, when the connecting member 1311 moves along the circumferential direction of the driving barrel 132, the connecting member 1311 drives the second elastic member 1312 to move together, and the movement of the second elastic member 1312 can drive the driving barrel 132 to rotate. When the lens is impacted by external force, the active lens barrel 132 abuts against the second elastic member 1312, so that the second elastic member 1312 can provide elastic buffering for the active lens barrel 132 in the process of reversing, and the lens can be protected. That is, in the embodiment of the present application, the second elastic member 1312 is disposed in the displacement transmission member 131, so that the driving lens barrel 132 is driven to rotate, and the driving lens barrel 132 is buffered, so that the service life of the camera module can be prolonged.

The second elastic member 1312 may be made of an elastic material having an elastic coefficient, similar to the first elastic member 24, and to ensure the strength and the lifespan of the second elastic member 1312, the second elastic member 1312 may be embodied as a coil spring made of spring steel.

Specifically, referring to fig. 2 and 4, the outer wall of the driving barrel 132 is provided with a protruding limiting portion 1321, two ends of the connecting member 1311 are respectively provided with a first limiting plate 13111 and a second limiting plate 13112, one side of the limiting portion 1321 abuts against the first limiting plate 13111, the other side of the limiting portion 1321 opposite to the first limiting plate 13111 abuts against one end of the second elastic member 1312, and the other end of the second elastic member 1312 is fixedly connected to the second limiting plate 13112.

In this embodiment, in order to realize lens extension, when the connecting member 1311 moves, the second limiting plate 13112 drives the second elastic member 1312 to move, so that the second elastic member 1312 drives the limiting portion 1321 to move together, thereby realizing rotation of the driving barrel 132. Meanwhile, the first limiting plate 13111 limits the limiting portion 1321, so that the driving barrel 132 and the connecting member 1311 can be synchronized when moving.

When the driving lens barrel 132 rotates reversely due to impact, the limiting portion 1321 of the driving lens barrel 132 compresses the second elastic member 1312, and the second elastic member 1312 converts the kinetic potential energy into elastic potential energy, thereby achieving buffering and avoiding damage to the camera module due to collision of components.

Optionally, the transmission assembly 13 further includes a first lens barrel 134 and a second lens barrel 135, the driving lens barrel 132 is sleeved outside the second lens barrel 135, the second lens barrel 135 is sleeved outside the driven lens barrel 133, the driven lens barrel 133 is sleeved outside the first lens barrel 134, and the first lens assembly 11 is disposed in the first lens barrel 134;

the driving lens barrel 132 is connected to the second lens barrel 135, and when the driving lens barrel 132 rotates from the first state to the second state, the driving lens barrel 132 drives the second lens barrel 135 to rotate from the third state to the fourth state;

the first barrel 134 is connected with the second barrel 135, and when the second barrel 135 rotates from the third state to the fourth state, the first barrel 134 moves from the fifth position to the sixth position; the vertical height of the fifth position is different from the vertical height of the sixth position;

the second barrel 135 is connected to the follower barrel 133, and when the follower barrel 133 moves from the first position to the second position, the second barrel 135 moves from the seventh position to the eighth position; the vertical height of the seventh position is different from the vertical height of the eighth position.

In the embodiment of the present application, referring to fig. 2 and fig. 3 together, in order to further increase the stroke of the first lens assembly 11 in the first axial direction, the transmission assembly 13 may further include a first lens barrel 134 and a second lens barrel 135, and the vertical height of the first lens assembly 11 is changed by the cooperation of the driving lens barrel 132, the driven lens barrel 133, the first lens barrel 134, and the second lens barrel 135.

Specifically, the driving lens barrel 132 may be sleeved outside the second lens barrel 135 and connected to the second lens barrel 135, so that when the driving lens barrel 132 rotates, the second lens barrel 135 rotates accordingly.

The driven lens barrel 133 may be sleeved outside the first lens barrel 134, and the first lens barrel 134 is connected to the second lens barrel 135, so that in the process of rotating the second lens barrel 135, the first lens barrel 134 may be driven to move from the fifth position to the sixth position, thereby changing the vertical height of the first lens assembly 11 disposed in the first lens barrel 134, and the specific implementation manner may refer to a transmission manner between the driving lens barrel 132 and the driven lens barrel 133, which is not described herein again.

The second lens barrel 135 can be sleeved outside the driven lens barrel 133 and connected to the driven lens barrel 133, so that when the driven lens barrel 133 moves from the first position to the second position, the second lens barrel 135 is driven to move from the seventh position to the eighth position. The seventh position and the eighth position are similar to the first position and the second position, and are not described in detail herein.

It can be understood that the second barrel 135 may be displaced in the first axial direction while rotating, that is, the second barrel 135 may be moved in a spiral type ascending manner by the cooperation of the driving barrel 132 and the driven barrel 133. The first barrel 134 can be connected to the second barrel 135 by passing through the hollow portion of the driven barrel 133.

In the embodiment of the present application, the driving lens barrel 132, the driven lens barrel 133, the first lens barrel 134, and the second lens barrel 135 are simultaneously disposed in the transmission member, so that the matching transmission among the lens barrels improves the stroke of the first lens assembly 11 in the first axial direction, thereby further improving the diffraction limit and the light entering amount, and improving the optical performance.

Optionally, a first sliding groove 1322 is formed in the wall of the driving lens barrel 132, an included angle between the extending direction of the first sliding groove 1322 and the circumferential direction of the driving lens barrel 132 is an acute angle, a first guide 1331 is disposed at a position of the driven lens barrel 133 corresponding to the sliding groove, and a portion of the first guide 1331 is located in the first sliding groove 1322 and can slide along the first sliding groove 1322;

when the driving barrel 132 rotates from the first state to the second state, the first guide 1331 moves from the ninth position of the first sliding groove 1322 to the tenth position of the first sliding groove 1322.

In the embodiment of the present application, referring to fig. 2, 4 and 5, the driving lens barrel 132 and the driven lens barrel 133 may be driven by a way that the sliding groove is matched with the guide member, and since an acute included angle exists between the extending direction of the first sliding groove 1322 and the circumferential direction of the driving lens barrel 132, when the driving lens barrel 132 rotates, the first guide 1331 moves along the first sliding groove 1322 to drive the driven lens barrel 133 to move, so that the vertical height of the driven lens barrel 133 is changed.

It should be understood that the above-mentioned included angle may be understood as a minimum included angle between the extending direction of the first sliding groove 1322 and the circumferential direction of the driving barrel 132.

Further, the first guide piece 1331 is disposed in a prism shape, and the first guide piece 1331 has a guiding inclined surface 13311, the guiding inclined surface 13311 is disposed toward a groove wall of the first sliding groove 1322, the guiding inclined surface 13311 is parallel to the groove wall of the first sliding groove 1322, and the guiding inclined surface 13311 at least partially fits the groove wall of the first sliding groove 1322.

In the embodiment of the present application, referring to fig. 5, the first guide piece 1331 may be disposed in a prism shape, and the groove wall of the first guide piece 1331 facing the first sliding groove 1322 is provided with a guide inclined surface 13311, so that during the sliding of the first guide piece 1331 along the first sliding groove 1322, the guide inclined surface 13311 makes the contact between the first guide piece 1331 and the groove wall of the first sliding groove 1322 be a surface contact, thereby improving stability and precision during the transmission process.

Optionally, the wall of the driving barrel 132 is provided with a first limiting groove 1323, and the extending direction of the first limiting groove 1323 is perpendicular to the circumferential direction of the driving barrel 132; a second guide 1351 is arranged at a position of the second lens barrel 135 corresponding to the first limiting groove 1323, and at least part of the second guide 1351 is located in the first limiting groove 1323 and can slide along the first limiting groove 1323;

when the driving barrel 132 rotates from the first state to the second state, the first limiting groove 1323 drives the second guiding member 1351 to rotate, so as to drive the second barrel 135 to rotate from the third state to the fourth state.

In the embodiment of the present application, referring to fig. 2, 4 and 7, in order to ensure that the driving barrel 132 and the second barrel 135 rotate synchronously, the second guiding element 1351 may be at least partially located in the first limiting groove 1323, and since the extending direction of the first limiting groove 1323 is perpendicular to the circumferential direction of the driving barrel 132, the first limiting groove 1323 will drive the second guiding element 1351 to rotate together, so as to drive the second barrel 135 to rotate.

It is understood that the second guiding member 1351 may be adapted to the width of the first limiting groove 1323 to further avoid the asynchronous rotation between the driving barrel 132 and the second barrel 135.

Optionally, one end of the second barrel 135 abuts against the first guide 1331, and when the driven barrel 133 moves from the first position to the second position, the first guide 1331 drives the second barrel 135 to move from the seventh position to the eighth position.

In this embodiment, the end of the second barrel 135 can abut against the first guide 1331 protruding from the second barrel 133 while being sleeved on the driven barrel 133, so that the second barrel 135 is driven to move in the first axial direction by the movement of the first guide 1331 in the first axial direction, the structure is more compact, and the occupied space of the camera module is further reduced.

It is understood that, in the case that the second barrel 135 moves from the seventh position to the eighth position, in combination with the above embodiment, the second guiding member 1351 of the second barrel 135 can slide along the extending direction of the first limiting groove 1323, so that the first limiting groove 1323 can also play a role of guiding the movement of the second barrel 135 in the first axial direction.

Optionally, a second sliding groove 1352 is formed in the cylinder wall of the second lens barrel 135, and an included angle between the extending direction of the second sliding groove 1352 and the circumferential direction of the second lens barrel 135 is an acute angle; a third guide piece 1341 is arranged at a position of the first barrel 134 corresponding to the second sliding groove 1352, and the third guide piece 1341 is at least partially positioned in the second sliding groove 1352 and can slide along the second sliding groove 1352;

when the second barrel 135 rotates from the third state to the fourth state, the third guide 1341 moves from the eleventh position of the second sliding groove 1352 to the twelfth position of the second sliding groove 1352.

In the embodiment of the present application, a transmission manner in which the rotation of the second lens barrel 135 drives the first lens barrel 134 to move is the same as a transmission manner in which the rotation of the driving lens barrel 132 drives the driven lens barrel 133 to move, and for avoiding repetition, the description is omitted here. It should be understood that, by further providing the second lens barrel 135 and the first lens barrel 134, the stroke of the first lens assembly 11 in the first axial direction can be improved, so as to further improve the optical performance.

Further, a second limiting groove 1332 is formed in the wall of the driven lens barrel 133, and the extending direction of the second limiting groove 1332 is perpendicular to the circumferential direction of the driven lens barrel 133;

the third guide 1341 sequentially passes through the second limiting groove 1332 and the second sliding groove 1352, and when the second barrel 135 rotates from the third state to the fourth state, the third guide 1341 moves from the thirteenth position of the second limiting groove 1332 to the fourteenth position of the second limiting groove 1332.

In this embodiment, the second limiting groove 1332 may be further disposed on the wall of the driven barrel 133, the third guiding member 1341 may first pass through the second limiting groove 1332 and then be slidably connected to the second sliding groove 1352, so that the third guiding member 1341 is limited by the extending direction of the second limiting groove 1332, and can only move along the first axial direction without relative rotation, thereby avoiding the rotation of the first barrel 134 along with the rotation of the second barrel 135, ensuring that the first lens assembly 11 does not rotate, avoiding the rotation of the first lens assembly 11 from affecting the processing of the first lens assembly 11 on light, and ensuring the optical performance of the camera module.

Optionally, the second driving assembly 23 includes a piezoelectric element 231 and a friction guide 232, the friction guide 232 is fixed to the mounting base 30, the piezoelectric element 231 is connected to the third lens assembly 22, and the piezoelectric element 231 abuts against the friction guide 232, and the piezoelectric element 231 can move along the friction guide 232 to drive the third lens assembly 22 to move.

In the embodiment of the present application, referring to fig. 8, it is known that the piezoelectric element 231 is an element that converts voltage into force, also referred to as a piezoelectric unit, that is, the piezoelectric element 231 may vibrate when voltage is applied, and the outer surface of the friction guide 232 has a certain friction coefficient, so that when the piezoelectric element 231 abuts against the friction guide 232, friction force is generated between the piezoelectric element 231 and the friction guide 232 to overcome the gravity of the piezoelectric element 231 itself, thereby ensuring that the piezoelectric element 231 is not displaced when no current is applied. The contact is understood to mean that the piezoelectric element 231 and the friction guide 232 have a mutual acting force in a direction perpendicular to the contact surface, and the piezoelectric element 231 and the friction guide 232 are pressed against each other to generate a frictional force.

The friction guide 232 may be fixed to the mounting seat 30 to provide a frictional force to the piezoelectric element 231. Specifically, the friction guide 232 may be fixedly mounted on the mounting seat 30 by means of snap-fit, plug-in, or adhesive, or the like, but of course, a bracket may be provided on the mounting seat 30 so that the friction guide 232 and the mounting seat 30 are kept relatively stationary. After the piezoelectric element 231 is powered on, the piezoelectric element 231 itself vibrates, and meanwhile, the piezoelectric element 231 is deformed by the friction force between the piezoelectric element 231 and the friction guide 232, and the piezoelectric element 231 is displaced by the deformation restoring force of the piezoelectric element 231, so that the second lens assembly 20 can be driven to be displaced.

For example, if the piezoelectric element 231 is disposed in a rectangular parallelepiped shape in fig. 11, when power is applied, the middle portion of the long side of the piezoelectric element 231 may be bent upward due to the vibration of the piezoelectric element 231 itself and the friction force with the friction guide 232, so that the piezoelectric element 231 is temporarily in a "U" shape, and the two side portions of the long side of the piezoelectric element 231 are displaced upward by the elastic restoring force, so that the piezoelectric element 231 is displaced upward along the friction guide 232 as a whole. Of course, the displacement direction and the displacement speed of the piezoelectric element 231 may be specifically set according to the direction and magnitude of the applied voltage, etc. to ensure that the displacement of the piezoelectric element 231 can drive the second lens assembly 20 to approach or depart from the mounting base 30, which is not illustrated herein.

The piezoelectric element 231 may be made of a piezoelectric material, and may specifically be a ceramic piezoelectric element or a quartz piezoelectric element, and the piezoelectric element 231 may be disposed in a shape of a rectangular parallelepiped, a cylinder, or the like, and may specifically be disposed according to actual needs. Similarly, the surface of the friction conductive member has a friction coefficient, and may be made of plastic, metal, or carbon material, and the friction conductive member may be disposed in a plate shape or a column shape, and may be disposed according to a displacement range required by the second lens assembly 20, which is not listed here.

In the embodiment of the present application, because second drive assembly 23 in the camera module includes piezoelectric element 231 and friction guide 232, piezoelectric element 231 and second lens assembly 20 are fixed while and are abutted against friction guide 232, piezoelectric element 231 vibrates when being applied with voltage, the friction force between piezoelectric element 231 and friction guide 232 makes piezoelectric element 231 itself deform, the restoring force of deformation makes piezoelectric element 231 displace along friction guide 232, thereby drive second lens assembly 20 to displace, the flexible function of second lens assembly 20 has been realized promptly, and because piezoelectric element 231's volume is usually less, consequently, the whole occupation space of camera module can be reduced.

Optionally, a mounting bracket 25 is disposed on one side of the second lens assembly 20, the second driving assembly 23 further includes a third elastic member 233, the third elastic member 233 is fixedly connected to the mounting bracket 25, and the third elastic member 233 is fixedly connected to the piezoelectric element 231.

In the embodiment of the present application, in order to facilitate the connection between the second lens assembly 20 and the piezoelectric element 231, a mounting bracket 25 may be disposed on one side of the second lens assembly 20, the second lens assembly 20 may further include a third elastic member 233, the third elastic member 233 is fixedly connected to the mounting bracket 25, and the third elastic member 233 is fixedly connected to the piezoelectric element 231, so that the piezoelectric element 231 and the second lens assembly 20 are relatively stationary without deformation of the third elastic member 233.

Specifically, in some embodiments, referring to fig. 8, the piezoelectric element 231 may be located between the third elastic member 233 and the mounting bracket 25, and the third elastic member 233 and the mounting bracket 25 may cooperate to clamp the piezoelectric element 231. In some embodiments, the mounting bracket 25 may include a receiving casing, a third elastic member 233 is disposed between an inner wall of the receiving casing and the piezoelectric element 231, the third elastic member 233 is fixedly connected to the inner wall of the receiving casing and fixedly connected to the piezoelectric element 231, and the piezoelectric element 231 is simultaneously abutted against the inner wall of the receiving casing of the mounting bracket 25, so that the piezoelectric element 231 and the second lens assembly 20 are relatively stationary without deformation of the third elastic member 233.

As can be seen from the above, the piezoelectric element 231 vibrates when being powered on, and can move along the friction guide 232 by combining the action of friction force, and since the piezoelectric element 231 is connected to the mounting bracket 25 through the third elastic member 233, the displacement of the piezoelectric element 231 can drive the second lens assembly 20 provided with the mounting bracket 25 to displace together, that is, the transmission of the second lens assembly 20 is realized.

In addition, in the embodiment of the present application, since the third elastic member 233 has a certain elastic coefficient, when the piezoelectric element 231 vibrates, the third elastic member 233 can perform a certain buffering function through elastic deformation, so as to prolong the service life of the second driving assembly 23.

It should be understood that the third elastic element 233 may be an elastic sheet, a spring, or another elastic structure, and may be specifically configured according to actual needs. Accordingly, the third elastic member 233 may be made of an elastic material, and since the third elastic member 233 needs to have a certain strength to connect the piezoelectric element 231 and the mounting bracket 25, the material of the third elastic member 233 may preferably be spring steel.

Further, the friction guide 232 is disposed in a column shape and fixed to the mounting base 30;

the mounting bracket 25 is provided with a first stopper hole 251, and the friction guide 232 passes through the first stopper hole 251 so that the mounting bracket 25 can move in the axial direction of the friction guide 232.

In the embodiment, the friction guide 232 may be disposed in a column shape and fixed to the mounting base 30 to reduce the space consumption. It will be appreciated that the friction guide 232 may also function as a guide while cooperating with the piezoelectric element 231 to move the piezoelectric element 231. The mounting bracket 25 may be formed with a first limiting hole 251 adapted to the friction guide 232, and the friction guide 232 may pass through the first limiting hole 251, so that the movement direction of the mounting bracket 25 may be limited to the axial direction of the friction guide 232, thereby improving the displacement accuracy of the second lens assembly 20 on which the mounting bracket 25 is disposed.

It should be understood that, when the friction guide 232 is disposed in a column shape, the axial direction is a height direction of the friction guide 232, and when the friction guide 232 is disposed in a plate shape or other shapes, the axial direction may be a central axis of the friction guide 232 in a direction of a connection line between the piezoelectric element 231 and the photo sensor chip.

In a specific embodiment, referring to fig. 8 or 9, the friction guide 232 may be disposed in a cylinder, and the first limiting hole 251 is correspondingly disposed as a circular hole, so that the mounting bracket can only move along the axial direction of the friction guide 232 after the friction guide 232 passes through the first limiting hole 251. It should be appreciated that the friction guide 232 can be disposed perpendicular to the mounting block 30 to ensure that the second lens assembly 20 is displaced in a direction perpendicular to the mounting block 30.

Further, the mounting bracket 25 includes a first boss 252 and a second boss 253, the first boss 252 being disposed opposite to the second boss 253;

the number of the first limiting holes 251 is two, and the first limiting holes 251 are respectively arranged on the first bosses 252 and the second bosses 253; the piezoelectric element 231 is located between the first boss 252 and the second boss 253, and the piezoelectric element 231 abuts against the friction guide 232 via the third elastic member 233.

In the embodiment of the present application, referring to fig. 12, the number of the first limiting holes 251 may be two, and the first limiting holes are respectively disposed on the first bosses 252 and the second bosses 253 of the mounting bracket 25. In order to enable the friction guide 232 to pass through the two first limiting holes 251 simultaneously, the first boss 252 and the second boss 253 are oppositely arranged, and the vertical projections of the two first limiting holes 251 on the mounting base 30 are overlapped, so that the two limiting holes are arranged for limiting, the second lens assembly 20 can be further prevented from shaking when moving along the friction guide 232, and the displacement stability of the second lens assembly 20 is improved.

Referring to fig. 8 to 9, the piezoelectric element 231 may be disposed between the first boss 252 and the second boss 253, and the friction guide 232 may be partially disposed between the first boss 252 and the second boss 253 because the friction guide 232 must pass through the two stopper holes. The piezoelectric element 231 and the friction guide 232 may abut against each other at a position between the first boss 252 and the second boss 253. Specifically, since the third elastic member 233 is connected to the mounting bracket 25 and the piezoelectric element 231 at the same time, the third elastic member 233 can provide an elastic force perpendicular to the contact surface of the friction guide 232 for the piezoelectric element 231, so that the piezoelectric element 231 can be abutted against the friction guide 232, and since the third elastic member 233 can be elastically deformed when the piezoelectric element 231 vibrates to play a role in buffering, a situation that the friction force between the piezoelectric element 231 and the friction guide 232 is too large or too small due to the vibration of the piezoelectric element 231 can be avoided, and the stability of the second lens assembly 20 during movement is improved.

Alternatively, the third elastic member 233 includes a first elastic arm, a second elastic arm, and a fixing groove between the first elastic arm and the second elastic arm for receiving and fixing the piezoelectric element 231;

the mounting bracket 25 has two sides respectively provided with a first clamping groove and a second clamping groove, the convex part of the first elastic arm is connected with the first clamping groove in a clamping manner, and the convex part of the second elastic arm is connected with the second clamping groove in a clamping manner.

In the embodiment, referring to fig. 10, the third elastic member 233 may include a first elastic arm 2331, a second elastic arm 2332 and a fixing groove 2333, and the fixing groove 2333 is located between the first elastic arm 2331 and the second elastic arm 2332 for receiving and fixing the piezoelectric element 231. Specifically, in an alternative embodiment, the groove wall of the fixing groove 2333 may have a snap-in structure to snap the piezoelectric element 231 into the fixing groove 2333. Of course, in other alternative embodiments, the fixing groove 2333 may be fixedly connected to the piezoelectric element 231 by means of bonding, welding or the like, and is not further limited herein.

The two sides of the mounting bracket 25 may be respectively provided with a first engaging groove and a second engaging groove, one end of the first elastic arm 2331 may have a protrusion of a snap type, and one end of the second elastic arm 2332 may also have a protrusion of a snap type, so that the first elastic arm 2331 may be engaged with the first engaging groove, and the second elastic arm 2332 may be engaged with the second engaging groove, to realize the connection of the third elastic member 233 and the mounting bracket 25.

In addition, when the first and second

elastic arms

2331 and 2332 are engaged with the mounting bracket 25, they are elastically deformed to a certain extent, so that the piezoelectric element 231 received in the fixing groove 2333 is abutted against the friction guide 232 by an elastic restoring force, that is, the piezoelectric element 231 is abutted against the friction guide 232 by the third elastic member 233.

Optionally, the camera module further includes a power supply and a Flexible Circuit (FPC) board, and one end of the FPC board 26 is connected to the piezoelectric element 231 and the other end is connected to the power supply so that the power supply is electrically connected to the piezoelectric element 231.

In the embodiment of the present application, the power supply and the piezoelectric element 231 are electrically connected through the FPC board 26 to apply a voltage to the piezoelectric element 231, and the FPC board 26 may be partially disposed on the mounting seat 30, so as to further reduce the occupied space. Meanwhile, when the piezoelectric element 231 moves along the friction guide 232, the flexible circuit board may deform to some extent to avoid obstructing the movement of the piezoelectric element 231.

Further, the flexible circuit FPC board 26 includes a bending portion 261, a first connecting arm 262 and a second connecting arm 263, the bending portion 261 is located between the first connecting arm 262 and the second connecting arm 263, the first connecting arm 262 is connected to the piezoelectric element 231, the second connecting arm 263 is connected to the power supply, and the first connecting arm 262 and the second connecting arm 263 form an included angle;

when the piezoelectric element 231 moves to the first position, a first included angle is formed between the first connecting arm 262 and the second connecting arm 263, and when the piezoelectric element 231 moves to the second position, a second included angle is formed between the first connecting arm 262 and the second connecting arm 263.

In the embodiment of the present application, referring to fig. 11, the FPC board 26 may have a bent portion 261, the first connecting arm 262 and the second connecting arm 263 at two ends of the bent portion 261 are respectively connected to the piezoelectric element 231 and the power supply, and the first connecting arm 262 and the second connecting arm 263 are disposed at an included angle, so that in a process that the piezoelectric element 231 moves along the friction guide 232, the first connecting arm 262 and the second connecting arm 263 can avoid obstructing the movement of the piezoelectric element 231 by changing the included angle.

Illustratively, referring to fig. 8 to 9, fig. 8 and 9 are schematic views of the second lens assembly 20 at different positions, respectively, and it can be seen that, when the second lens assembly 20 is at different positions, the first connecting arm 262 and the second connecting arm 263 respectively present different included angles.

It is apparent that, in fig. 8 to 9, when the second lens assembly 20 moves downward, the angle between the first connecting arm 262 and the second connecting arm 263 gradually decreases, and when the second lens assembly 20 moves upward, the angle between the first connecting arm 262 and the second connecting arm 263 gradually increases, so that by providing the bent portion 261 to change the first connecting arm 262 and the second connecting arm 263, the obstruction to the movement of the piezoelectric element 231 is avoided.

Optionally, the camera module further includes a guide post, and the guide post is fixed to the mounting base 30;

the second lens assembly 20 has a second limiting hole 27 at a position corresponding to the guiding post, and the guiding post passes through the second limiting hole 27 and is in sliding contact with the inner wall of the second limiting hole 27.

In this embodiment, referring to fig. 8 and 12, in order to further improve the stability of the second lens assembly 20 during movement, the camera module may further include one or more guide posts, a second limiting hole 27 is formed in a position of the second lens assembly 20 corresponding to the guide posts, and the guide posts are in sliding contact with inner walls of the second limiting hole 27, so that the second lens assembly 20 may be limited from moving along the extending direction of the guide posts.

It is understood that the guiding posts can individually guide the second lens assembly 20 or cooperate with the friction guide 232 to guide the second lens assembly 20. When the friction guide 232 passes through the first stopper hole 251, the extending direction of the guide post may be identical to the extending direction of the friction guide 232.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A camera module is characterized by comprising a first lens assembly, a second lens assembly and a mounting seat, wherein the first lens assembly and the second lens assembly are arranged on the mounting seat, the first lens assembly comprises a first lens assembly and a first driving assembly, the second lens assembly comprises a second lens assembly, a third lens assembly, a second driving assembly and a first elastic piece, wherein,

the first lens assembly, the second lens assembly and the third lens assembly are sequentially arranged and coaxially arranged, and the first lens assembly is abutted against the second lens assembly;

2. The camera module according to claim 1, wherein the first lens assembly further comprises a transmission assembly, the transmission assembly comprises a displacement transmission member, a driving lens barrel and a driven lens barrel, and the driving lens barrel is sleeved outside the driven lens barrel; the displacement transmission part is connected with the first driving component and the driving lens cone;

the first driving component drives the driving lens cone to rotate through the displacement transmission piece;

the driven lens barrel is connected with the driving lens barrel in a sliding mode and is connected with the first lens assembly; under the condition that the driving lens barrel rotates from a first state to a second state, the driven lens barrel drives the first lens assembly to move from a first position to a second position, and the vertical height of the first position is different from that of the second position.

3. The camera module according to claim 2, wherein the displacement transmission member includes a connecting member and a second elastic member, the connecting member is connected to the first driving assembly, and the connecting member is capable of sliding along a circumferential direction of the driving lens barrel between a third position and a fourth position;

the second elastic piece is arranged along the circumferential direction of the driving lens cone, one end of the second elastic piece is fixedly connected with the connecting piece, and the other end of the second elastic piece is abutted against the driving lens cone;

under the condition that the connecting piece moves from the third position to the fourth position, the second elastic piece drives the driving lens cone to rotate from the first state to the second state.

4. The camera module according to claim 3, wherein a limiting portion is protruded from an outer wall of the driving barrel, a first limiting plate and a second limiting plate are respectively disposed at two ends of the connecting member, one side of the limiting portion abuts against the first limiting plate, the other side of the limiting portion opposite to the first limiting plate abuts against one end of the second elastic member, and the other end of the second elastic member is fixedly connected to the second limiting plate.

5. The camera module according to claim 2, wherein the transmission assembly further comprises a first lens barrel and a second lens barrel, the driving lens barrel is sleeved outside the second lens barrel, the second lens barrel is sleeved outside the driven lens barrel, the driven lens barrel is sleeved outside the first lens barrel, and the first lens assembly is disposed in the first lens barrel;

the driving lens barrel is connected with the second lens barrel, and drives the second lens barrel to rotate from a third state to a fourth state under the condition that the driving lens barrel rotates from a first state to a second state;

the first lens barrel is connected with the second lens barrel, and moves from a fifth position to a sixth position when the second lens barrel rotates from a third state to a fourth state; the vertical height of the fifth location is different from the vertical height of the sixth location;

the second lens barrel is connected with the driven lens barrel, and moves from a seventh position to an eighth position when the driven lens barrel moves from a first position to a second position; the vertical height of the seventh location is different from the vertical height of the eighth location.

6. The camera module according to claim 5, wherein a first sliding groove is formed in a wall of the driving barrel, an included angle between an extending direction of the first sliding groove and a circumferential direction of the driving barrel is an acute angle, a first guide is disposed at a position of the driven barrel corresponding to the sliding groove, and a portion of the first guide is located in the first sliding groove and can slide along the first sliding groove;

when the active lens barrel rotates from a first state to a second state, the first guide moves from a ninth position of the first sliding groove to a tenth position of the first sliding groove.

7. The camera module of claim 6, wherein the first guiding member is disposed in a prism shape, and the first guiding member has a guiding inclined surface disposed toward a groove wall of the first sliding groove, the guiding inclined surface is parallel to the groove wall of the first sliding groove, and the guiding inclined surface at least partially fits the groove wall of the first sliding groove.

8. The camera module according to claim 5, wherein the barrel wall of the driving barrel is formed with a first limiting groove, and an extending direction of the first limiting groove is perpendicular to a circumferential direction of the driving barrel; a second guide part is arranged at the position of the second lens barrel corresponding to the first limiting groove, and at least part of the second guide part is positioned in the first limiting groove and can slide along the first limiting groove;

under the condition that the driving lens cone rotates from a first state to a second state, the first limiting groove drives the second guide piece to rotate so as to drive the second lens cone to rotate from a third state to a fourth state.

9. The camera module according to claim 5, wherein a second sliding groove is formed in a wall of the second barrel, and an included angle between an extending direction of the second sliding groove and a circumferential direction of the second barrel is an acute angle; a third guide piece is arranged at a position, corresponding to the second sliding groove, of the first lens barrel, and at least part of the third guide piece is located in the second sliding groove and can slide along the second sliding groove;

when the second barrel rotates from the third state to the fourth state, the third guide moves from the eleventh position of the second slide groove to the twelfth position of the second slide groove.

10. The camera module according to claim 9, wherein a second limiting groove is formed in a wall of the driven lens barrel, and an extending direction of the second limiting groove is perpendicular to a circumferential direction of the driven lens barrel;

the third guide piece sequentially penetrates through the second limiting groove and the second sliding groove, and moves from a thirteenth position of the second limiting groove to a fourteenth position of the second limiting groove when the second lens barrel rotates from a third state to a fourth state.

11. The camera module according to claim 6, wherein an end of the second barrel abuts against the first guide, and when the driven barrel moves from the first position to the second position, the first guide drives the second barrel to move from the seventh position to the eighth position.

12. The camera module of claim 1, wherein the second driving assembly comprises a piezoelectric element and a friction guide, the friction guide is fixed to the mounting base, the piezoelectric element is connected to the third lens assembly and abuts against the friction guide, and the piezoelectric element can move along the friction guide to drive the third lens assembly to move.

13. An electronic device, comprising the camera module of any one of claims 1-12.