CN110278361B

CN110278361B - Mobile terminal

Info

Publication number: CN110278361B
Application number: CN201910580473.6A
Authority: CN
Inventors: 杜鹏
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2021-02-19
Anticipated expiration: 2039-06-28
Also published as: CN110278361A

Abstract

The embodiment of the application discloses a mobile terminal, and relates to the technical field of electronic equipment. The mobile terminal comprises a middle frame; the middle frame comprises a middle plate and a frame, and the frame is connected to the edge of the middle plate and arranged around the middle plate; the frame is provided with a through hole; the lens module comprises a wide-angle lens and a telescopic assembly, and the telescopic assembly is arranged in the middle frame and is connected with the wide-angle lens so as to selectively drive the wide-angle lens to extend out of the frame or retract into the middle frame along the axis direction of the through hole; and the rear cover is assembled on the middle frame and positioned on one side of the middle plate, at least one part of the rear cover forms a transparent part, and the transparent part corresponds to the wide-angle lens so that light rays enter the wide-angle lens through the transparent part. When the wide-angle image is shot, the wide-angle lens extends out of the frame of the mobile terminal, the wide-angle lens can obtain a larger shooting visual angle, and when the wide-angle lens is not used, the wide-angle lens retracts into the middle frame of the mobile terminal, so that the wide-angle lens is prevented from being worn.

Description

Mobile terminal

Technical Field

The present application relates to the field of electronic devices, and more particularly, to a mobile terminal.

Background

Present mobile terminal is in order to satisfy user's shooting demand, generally can set up a plurality of cameras, and wherein there is a wide-angle camera or panorama camera, however, the wide-angle camera or the panorama camera that set up on the cell-phone often shoot the effect not very good when shooing.

Disclosure of Invention

In view of the above problem, the application provides a mobile terminal, when needing to carry out large-angle shooting, can stretch out the wide-angle lens from the mobile terminal to obtain bigger shooting visual angle.

The embodiment of the application provides a mobile terminal, which comprises a middle frame, a lens module and a rear cover, wherein the middle frame comprises a middle plate and a frame, and the frame is connected to the edge of the middle plate and arranged around the middle plate; the frame is provided with a through hole; the lens module comprises a wide-angle lens and a telescopic assembly, wherein the telescopic assembly is arranged in the middle frame and is connected with the wide-angle lens so as to selectively drive the wide-angle lens to extend out of the frame or retract into the middle frame along the axis direction of the through hole; the back cover is assembled on the middle frame and is positioned on one side of the middle plate, at least one part of the back cover forms a transparent part, and the transparent part corresponds to the wide-angle lens, so that light rays enter the wide-angle lens through the transparent part.

The mobile terminal that this application embodiment provided, through the axis direction of flexible subassembly selectively drive wide-angle lens along the through-hole stretch out the frame or retract the center, when the image of wide-angle is taken to needs, can stretch out mobile terminal's frame with wide-angle lens to the sheltering from of back lid to wide-angle lens has been avoided, so that wide-angle lens can obtain great shooting visual angle, and then has improved mobile terminal's shooting performance. And when the wide-angle image does not need to be shot, the wide-angle lens can be retracted into the middle frame of the mobile terminal, so that the wide-angle lens is prevented from being worn when not used. Moreover, the transparent part corresponding to the wide-angle lens is arranged on the rear cover, so that the wide-angle lens can shoot at a smaller angle of view when being retracted into the middle frame of the mobile terminal, and the use flexibility of the wide-angle lens is improved.

These and other aspects of the present application will be more readily apparent from the following description of the embodiments.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 shows a schematic split structure of a mobile terminal according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a lens module according to an embodiment of the present application.

Fig. 3 shows a schematic structural diagram of a wide-angle lens according to an embodiment of the present application.

Fig. 4 shows a perspective structural diagram of a mobile terminal according to an embodiment of the present application.

Fig. 5 shows a schematic structural diagram of a cover plate according to an embodiment of the present application.

FIG. 6 illustrates a schematic structural diagram of a transmission mechanism according to one embodiment of the present application.

FIG. 7 illustrates a schematic diagram of a transmission mechanism according to another embodiment of the present application.

Fig. 8 illustrates a schematic view of the installation of a wide-angle lens and a back cover according to an embodiment of the present application.

Fig. 9 shows a schematic view of the installation of a wide-angle lens and a back cover according to another embodiment of the present application.

Fig. 10 is a schematic structural diagram of a lens module according to another embodiment of the present application.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, 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.

With the rapid improvement of the performance of the mobile terminal, the requirements of the user on the functions of the mobile terminal are higher and higher, especially on the aspect of shooting performance. In order to satisfy the requirement that a user can use the mobile terminal to perform panoramic shooting or wide-angle shooting, at least one wide-angle lens is generally configured on the mobile terminal, and since the front lens of the wide-angle lens is generally spherical, the lens surface of the wide-angle lens is convex relative to the mobile terminal shell, and therefore the wide-angle lens is easily worn. Therefore, protection glass is required to be arranged outside the wide-angle lens of the mobile terminal to protect the wide-angle glass from abrasion, but the protection glass is arranged to shield the wide-angle lens, so that the shooting visual angle of the wide-angle lens is affected, a large shooting angle cannot be obtained, and the effect of large-angle or panoramic shooting is poor.

The inventor finds that if the wide-angle lens is required to be used for large-angle shooting, the wide-angle lens is extended out of the mobile terminal, so that the wide-angle lens can be prevented from being shielded, and a large shooting visual angle can be obtained. If the wide-angle lens is not needed, the wide-angle lens is retracted to the mobile terminal, so that the wide-angle lens is prevented from being worn.

Therefore, the inventor proposes the mobile terminal provided by the embodiment of the application.

Referring to fig. 1, an embodiment of the present application provides a mobile terminal 100, where the mobile terminal 100 may include: the lens module 130 is disposed on the middle frame 110, and the rear cover 120 is disposed on one side of the lens module 130 and is disposed on the middle frame 110, wherein the rear cover 120 is disposed on the middle frame 110 and is used for protecting the lens module 130 and serving as an appearance surface of the mobile terminal 100.

The mobile terminal 100 of the present embodiment may be an electronic device with a shooting function, such as a smart phone and a tablet computer.

Referring to fig. 1 again, the middle frame 110 includes a middle plate 111 and a frame 112, the frame 112 is connected to an edge of the middle plate 111 and disposed around the middle plate 111; the frame 112 has a through hole 1121. The wide-angle lens of the lens module 130 can extend out of the frame 112 or retract into the middle frame 110 through the through hole 1121. The middle frame 110 may have a front case 140 and a rear cover 120 respectively mounted on opposite sides thereof, wherein the middle plate 111 may be used to mount various components of the mobile terminal 100, and the bezel 112 may be generally used to set a switch key, a microphone, a speaker, etc. of the mobile terminal 100.

In some embodiments, the lens module 130 may be installed on one side or both sides of the middle plate 111, for example, between the middle plate 111 and the front shell 140, between the middle plate 111 and the rear cover 120, or between the middle plate 111 and the front shell 140 and between the middle plate 111 and the rear cover 120. Correspondingly, the through hole 1121 formed in the frame 112 may be located between the middle plate 111 and the front shell 140, between the middle plate 111 and the rear cover 120, or between the middle plate 111 and the front shell 140 and between the middle plate 111 and the rear cover 120. Optionally, the cross section of the through hole 1121 may be rectangular, circular, or various irregular cross sections.

Alternatively, the through hole 1121 may be disposed at any position of the frame 112, for example, a switch key is mounted on one side of the frame 112, and the through hole 1121 may be disposed on one side of the frame 112 where the switch key is mounted, on a side of the frame 112 opposite to the side where the switch key is mounted, or on a side of the frame 112 adjacent to the side where the switch key is mounted.

In some embodiments, the through hole 1121 may be disposed at a side of the bezel where the sound receiving port is disposed.

Referring to fig. 2, the lens module 130 includes a wide-angle lens 131 and a telescopic element 134, wherein the telescopic element 134 is disposed in the middle frame 110 and connected to the wide-angle lens 131 to selectively drive the wide-angle lens 131 to extend out of the frame 112 or retract into the middle frame 110 along the axial direction of the through hole 1121.

In practical applications, if the wide-angle lens 131 is required to perform large-angle shooting, the telescopic assembly 134 can drive the wide-angle lens 131 to extend out of the frame 112 along the axial direction of the through hole 1121 for shooting, that is, to extend out of the housing of the mobile terminal 100, at this time, because the wide-angle lens 131 is not shielded by the components of the mobile terminal 100, such as the housing and the rear cover 120, a large shooting visual angle of the wide-angle lens 131 can be obtained, and therefore, a panoramic picture or a picture with a large visual angle can be conveniently shot. Since the front lens of the wide-angle lens 131 is spherical and the surface is convex, and is more easily worn than a plane lens, when the wide-angle lens 131 is not needed to be used for shooting at a large angle, the telescopic assembly 134 can drive the wide-angle lens 131 to retract into the middle frame 110 along the axial direction of the through hole 1121, that is, into the housing of the mobile terminal 100, so that the housing of the mobile terminal 100 can protect the wide-angle lens 131 and prevent the wide-angle lens 131 from being worn. The telescopic assembly 134 may be a spring, an electromagnet, a stepping motor, a linear motor, or the like.

In some embodiments, referring to fig. 3, wide-angle lens 131 includes a lens body 1311 and a lens body 1312, the lens body 1312 being connected to the lens body 1311 and configured to transmit light, the lens body 1312 being, for example, substantially hemispherical and made of a transparent material. Lens body 1312 includes a first portion 1313 and a second portion 1314, second portion 1314 surrounding first portion 1313 and connecting with first portion 1313; first portion 1313 refers to a portion of the lens body 1312 where the light entering the lens body 1312 can be substantially parallel to the optical axis of wide-angle lens 131, and second portion 1314 may refer to a portion of the lens body 1312 other than first portion 1313, or may refer to a portion of the lens body 1312 where the light entering the lens body 1312 forms a larger angle with the optical axis of wide-angle lens 131. For example, as shown in fig. 3, in the forward projection of the lens main body 1312 on the plane formed by the lens body, the projection of the first portion 1313 forms a circle with a radius R1 and the center of the projection of the lens main body 1312 is the center, wherein the radius R1 is smaller than or equal to 1/2 of the radius R2 of the lens main body. Where the radius of the radius R2 of the lens body refers to the radius of the circle formed by the projection of the lens body 1312 on the lens body, it will be understood that the lens body refers to the portion of the wide angle lens where the lens body is used to encapsulate the lens body.

In other embodiments, the lens module 130 may further include a cover plate 150, and the cover plate 150 is used for closing the through hole 1121 when the wide-angle lens 131 is retracted into the middle frame 110. In some embodiments, cover plate 150 may be coupled to wide angle lens 131 and move telescopically with wide angle lens 131. By providing the cover plate 150 to close the through hole 1121 when the wide-angle lens 131 is retracted into the middle frame 110, the wide-angle lens 131 can be protected when not in use, and dust can be prevented from entering the interior of the mobile terminal 100.

In some embodiments, referring to fig. 5, the cover plate 150 may also be disposed at an edge of the rim at the through hole, and the lens module 130 may further include a reset element 160, where the cover plate 150 is hinged to the edge of the rim 112 at the through hole 1121, so that the cover plate 150 can be opened when the lens module extends out of the rim. The reset member 160 is used for resetting the cover plate 150, so that when the lens module retracts into the middle frame, the cover plate 150 can automatically reset and close the through hole. As an example, the restoring member 160 may be, for example, a restoring torsion spring, and the restoring spring may be directly sleeved on the pivot between the cover plate 150 and the frame 112 and abut against the cover plate 150. The cover plate 150 is reset by the reset member 160, and the through hole 1121 can be automatically closed by the cover plate 150 each time the wide-angle lens 131 retracts into the middle frame 110, so that the wide-angle lens 131 is protected, and dust can be effectively prevented from entering the mobile terminal 100.

Referring to fig. 3 again, the retractable element 134 is used for driving the lens module to move telescopically, so that the lens module can selectively extend out of the frame or retract into the middle frame.

In some embodiments, the telescopic assembly 134 may include a driving motor 132 and a transmission mechanism 133, the driving motor 132 is disposed in the middle frame 110, and the transmission mechanism 133 is connected to an output shaft of the driving motor 132 and is used for driving the wide-angle lens 131 to move telescopically.

In some embodiments, referring to fig. 3 and fig. 6, the transmission mechanism 133 may include a first lead screw 1331, a second lead screw 1333 and optionally a fixing box 1332, one end of the first lead screw 1331 is connected to the output shaft of the driving motor 132, the other end of the first lead screw 1331 is disposed in the fixing box 1332 and is rotatably disposed relative to the fixing box 1332, one end of the second lead screw 1333 is connected to the wide-angle lens 131, the other end of the second lead screw 1333 is fixed to the fixing box 1332 and is rotatably disposed relative to the fixing box 1332 and is capable of extending and retracting along the axial direction of the through hole 1121, and the second lead screw 1333 is disposed along the axial direction. The thread on the first lead screw 1331 is engaged with the thread on the second lead screw 1333, and when the output shaft of the driving motor 132 rotates, the first lead screw 1331 is driven to rotate, so as to drive the second lead screw 1333 to move along the extending direction of the second lead screw 1333, and further, the wide-angle lens 131 can be driven to complete the extension and retraction. By driving the wide-angle lens 131 through the first lead screw 1331 and the second lead screw 1333, the wide-angle lens 131 can be extended and retracted stably in the axial direction of the through hole 1121, and the extension and retraction distance of the wide-angle lens 131 can be controlled accurately. The fixing box 1332 and the driving motor 132 may be connected and fixed to the middle plate 111, or connected to a surface of the rear cover 120 facing the middle plate 111.

Referring to fig. 7, in some embodiments, the transmission mechanism 133 may also include a screw 231 and a slider 232, the screw 231 is disposed along the axial direction of the through hole 1121, and the screw 231 is in transmission connection with the driving motor 132; the slider 232 is sleeved on the screw and slides along the extending direction of the screw 231, and the wide-angle lens 131 is connected and fixed to the slider 232. When the driving motor 132 drives the screw 231 to rotate, the slider 232 can move along the extending direction of the screw 231, so as to drive the wide-angle lens 131 to perform telescopic motion in the axial direction of the through hole 1121. This arrangement may reduce the footprint of the actuator 133 within the mobile terminal 100. Alternatively, the sliding block 232 may be a rectangular parallelepiped, a cylinder, or the like.

In other embodiments, the driving motor 132 may also be a linear motor, the transmission mechanism 133 may be an output shaft of the linear motor, the output shaft of the linear motor may be disposed along the axial direction of the through hole, and the wide-angle lens may be directly connected to the output shaft of the linear motor and driven by the linear motor to perform telescopic motion.

In some embodiments, the wide-angle lens 131 in the lens module 130 may further be rotatably connected to the telescopic assembly 134, so that the wide-angle lens 131 can rotate along the axis of the through hole during the telescopic movement. Like this when wide-angle lens 131 can shoot the image that the angle is 180, wide-angle lens 131 can stretch out earlier and shoot the shooting angle on arbitrary one first direction and be 180 images outside frame 112, then rotate to shoot an image that the angle is 180 again on the second direction opposite with the first direction, then splice the combination to two images that the angle is 180, can obtain a panoramic picture that the angle is 360 to realize 360 panorama shooting. Referring to fig. 1 again, the rear cover 120 is mounted to the middle frame 110 and located at one side of the middle plate 111, at least a portion of the rear cover 120 forms a transparent portion 122, and the transparent portion 122 corresponds to the wide-angle lens 131, so that light enters the wide-angle lens 131 through the transparent portion 122. It is understood that the transparent portion 122 corresponds to the wide-angle lens 131, meaning that the projection of the transparent portion 122 on the middle plate and the projection of the wide-angle lens on the middle plate at least partially coincide, for example: the projection of the wide-angle lens on the midplane is entirely within the projection area of the transparent portion 122 on the midplane. In some embodiments, the projection of the transparent portion 122 on the midplane and the projection of the wide-angle lens on the midplane may completely coincide.

It is understood that the transparent portion 122 may cover the entire portion of the rear cover or only a partial portion of the rear cover. The transparent part is made of a transparent material, such as glass, transparent plastic, etc.

In some embodiments, referring again to fig. 1, back cover 120 may include a non-transparent portion 121 and a transparent portion 122, and transparent portion 122 corresponds to only first portion 1313, so that light enters wide-angle lens 131 through transparent portion 122. In some embodiments, the non-transparent part 121 is provided with a notch at the edge of the non-transparent part, and the transparent part 122 is connected to the non-transparent part 121 and closes the notch. The transparent part 122 may be a transparent glass plate, and by providing the transparent part 122 on the back cover 120, when the wide-angle lens 131 is retracted into the middle frame 110, small-angle shooting can be performed through the transparent part. Thereby increasing the flexibility of photographing by the mobile terminal 100.

In some embodiments, referring to fig. 8, a surface of the transparent part 122 facing the wide-angle lens 131 is opened with an accommodating groove 1221, when the wide-angle lens 131 is retracted into the middle frame 110, at least a portion of the lens main body 1312 is located in the accommodating groove 1221, and by opening the accommodating groove 1221 to accommodate at least a portion of the lens main body 1312, the distance from the middle plate 111 to the rear cover 120 is reduced while the rear cover 120 can protect the wide-angle lens 131, thereby reducing the thickness of the mobile terminal 100.

In some embodiments, the accommodating groove 1221 penetrates through an edge of the transparent part 122 near the bezel 112 in an axial direction of the through hole 1121. This arrangement can ensure smooth sliding of the wide angle lens 131 in the axial direction along the through hole 1121 while reducing the distance from the middle plate 111 to the rear cover 120 to reduce the thickness of the mobile terminal 100.

Referring to fig. 9, in some embodiments, the transparent portion 222 includes a groove wall located in the receiving groove 1221, and the groove wall is curved in the cross section of the receiving groove 1221. This arrangement allows lens body 1312 of wide angle lens 131 to be closer to transparent portion 122 of rear cover 120, and reduces the distance from middle plate 111 to rear cover 120, thereby reducing the thickness of mobile terminal 100.

In some embodiments, the first portion 1313 of the lens body is located in the receiving groove, which not only protects the first portion 1313 better, but also allows the groove wall of the receiving groove to block the second portion 1314 of the lens body when the wide-angle lens is retracted into the middle frame, so that the wide-angle lens can be used as a normal lens.

In some embodiments, the transparent portion may be sized such that only the back cover corresponding to the first portion 1313, i.e., the second portion 1314, is a non-transparent portion. By disposing the transparent part 122 on the rear cover 120 to correspond to the first section 1313, when the wide angle lens 131 is retracted into the middle frame 110, the transparent part 122 on the rear cover 120 allows only light rays parallel to the optical axis of the wide angle lens 131 to enter the first section 1313 of the wide angle lens 131, so that the wide angle lens 131 at this time can be used as a normal lens, thereby making the moving photographing more flexible. Alternatively, the transparent part 122 may be a transparent glass embedded in the back cover 120.

In some embodiments, referring to fig. 1 and 4 together, the transparent portion 122 may also be a light hole 1222 opened in the rear cover 120. By providing the transparent portion 122 as the light transmitting hole 1222, it is possible to ensure a good light transmission when the wide-angle lens 131 is used as a normal lens. The light-transmitting hole 1222 may be a circular hole, a rectangular hole, or a special-shaped hole. Since the projection of the first portion 1313 of the lens body 1312 on the back cover 120 is substantially circular, when the light transmission hole 1222 is a circular hole, the light transmission hole 1222 may be sized to coincide with the projection of the first portion 1313 of the lens body 1312 on the back cover 120, so that the wide-angle lens 131 can receive sufficient light when used as a normal lens.

It is understood that, in some embodiments, the lens assembly and the telescopic assembly 134 may be electrically connected to and controlled by a processor of the mobile terminal. Of course, a separate control module may be provided for controlling the lens assembly and the telescopic assembly 134.

The working principle of the mobile terminal 100 provided by the embodiment is as follows:

when a user needs to take an image with a wide range of angles, the telescopic mechanism is controlled to extend the wide-angle lens 131 out of the frame 112 of the mobile terminal, and at this time, the rear cover 120 and the transparent part 122 on the rear cover 120 do not shield the wide-angle lens 131, so that the wide-angle lens 131 can obtain a larger shooting visual angle, and the shooting performance of the mobile terminal 100 for panoramic shooting is further improved. When the user does not need to take a large-angle image, the telescopic mechanism is controlled to retract the wide-angle lens 131 into the middle frame 110 of the mobile terminal 100, thereby preventing the wide-angle lens 131 from being worn when not in use. When a user needs to use the mobile terminal 100 to perform shooting at a small range of angles, the wide-angle lens 131 can penetrate through the transparent part 122 arranged on the rear cover 120 to perform shooting at a small range of angles, so that the flexibility of use of the wide-angle lens 131 is improved.

In some embodiments, referring to fig. 10, the lens module 130 may include a first lens module 201 and a second lens module 301; the through holes may include a first through hole 101 and a second through hole 102, the first through hole 101 and the second through hole 102 being located at both sides of the middle plate 111; the first lens module 201 includes a first wide-angle lens 2011 and a first telescopic component 2012, the first telescopic component 2012 is disposed in the middle frame and connected to the first wide-angle lens 2011 to selectively drive the first wide-angle lens 2011 to extend out of the frame or retract into the middle frame along the axial direction of the first through hole 101; the second lens module 301 includes a second wide-angle lens 3011 and a second telescopic component 3012, the second telescopic component 3012 is disposed in the middle frame and connected to the second wide-angle lens 3011 to selectively drive the second wide-angle lens 3011 to extend out of the frame or retract into the middle frame along the axis direction of the second through hole 102, and the optical axes of the wide-angle lens of the first lens module 201 and the wide-angle lens of the second lens module 301 are located on the same plane. It is understood that the optical axis refers to the incident light direction of the wide-angle lens, which is perpendicular to the plane of the transparent part and passes through the center of the lens body.

The first lens module 201 and the second lens module 301 may have substantially the same structure, the first wide-angle lens 2011 and the second wide-angle lens 3011 may have substantially the same structure, and the first telescopic assembly 2012 and the second telescopic assembly 3012 may have substantially the same structure.

Through setting up first through-hole 101 and second through-hole 102 in the both sides of medium plate 111, and set up first lens module 201 and second lens module 301 corresponding first through-hole 101 and second through-hole 102, when first wide-angle lens 2011 and second wide-angle lens 3011 all can shoot the image of 180 angles, accessible first flexible subassembly 2012 and second flexible subassembly 3012 stretch out first wide-angle lens 2011 and second wide-angle lens 3011 outside frame 112 simultaneously, and make the wide-angle lens of first lens module 201 and the wide-angle lens of second lens module 301 the optical axis be located the coplanar, shoot two images that the angle of shooting is 180 simultaneously again, then splice the combination to two images that the angle of shooting is 180, can obtain the panoramic picture that the angle of shooting is 360. Because first wide-angle lens 2011 and second wide-angle lens 3011 set up at a unified mobile terminal 100, can guarantee that first wide-angle lens 2011 and second wide-angle lens 3011's shooting time is unanimous, the shooting angle of first wide-angle lens 2011 and the shooting angle of second wide-angle lens 3011 are complete symmetry, thereby make the image effect of the panoramic picture of splicing out more true, also avoided simultaneously to splice the loaded down with trivial details and the difficulty of merging the panoramic picture through the picture of following different moments, different angles shooting.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A mobile terminal, comprising:

the middle frame comprises a middle plate and a frame, the frame is connected to the edge of the middle plate and arranged around the middle plate, and the frame is provided with a through hole;

the lens module comprises a wide-angle lens and a telescopic assembly, and the telescopic assembly is arranged in the middle frame and is connected with the wide-angle lens so as to selectively drive the wide-angle lens to extend out of the frame or retract into the middle frame along the axis direction of the through hole; and

the back cover is assembled on the middle frame and located on one side of the middle plate, at least one part of the back cover forms a transparent part, and the transparent part corresponds to the wide-angle lens, so that light rays enter the wide-angle lens through the transparent part.

2. The mobile terminal of claim 1, wherein the wide-angle lens comprises a lens body and a lens body connected to the lens body for transmitting light, the lens body comprising a first portion and a second portion surrounding and connected to the first portion;

the transparent part only corresponds to the first part, so that light enters the wide-angle lens through the transparent part.

3. The mobile terminal of claim 2, wherein the transparent portion is a light hole opened in the rear cover.

4. The mobile terminal of claim 2, wherein the rear cover comprises a non-transparent portion and the transparent portion, the non-transparent portion is provided with a notch at an edge of the non-transparent portion, and the transparent portion is connected to the non-transparent portion and is provided at the notch.

5. The mobile terminal of claim 4, wherein a surface of the transparent portion facing the wide-angle lens defines a receiving groove, and at least a portion of the lens body is located in the receiving groove when the wide-angle lens is retracted into the middle frame.

6. The mobile terminal according to claim 5, wherein the receiving groove penetrates an edge of the transparent part near the bezel in an axial direction of the through hole.

7. The mobile terminal of claim 6, wherein the lens module further comprises a cover plate for closing the through hole and the receiving groove when the wide-angle lens is retracted into the middle frame.

8. The mobile terminal of claim 5, wherein the transparent part comprises a groove wall located inside the receiving groove, and an intersection line of the groove wall and a cross section of the receiving groove is an arc-shaped curve.

9. The mobile terminal of claim 1, wherein the retraction assembly comprises:

the driving motor is arranged in the middle frame;

and the transmission mechanism is connected to the output shaft of the driving motor and is used for driving the wide-angle lens to perform telescopic motion.

10. The mobile terminal of claim 9, wherein the transmission mechanism comprises:

the screw rod is arranged along the axial direction of the through hole and is in transmission connection with an output shaft of the driving motor; and

the slider, the slider cover is located the screw rod is followed the extending direction of screw rod slides and sets up, wide angle lens connect in the slider.

11. The mobile terminal of any of claims 1 to 10, wherein the wide-angle lens comprises a first wide-angle lens and a second wide-angle lens;

the through holes comprise a first through hole and a second through hole, and the first through hole and the second through hole are arranged on the frame and positioned on two sides of the middle plate;

the lens module comprises a first lens module and a second lens module;

the first lens module comprises a first wide-angle lens and a first telescopic assembly, and the first telescopic assembly is arranged in the middle frame and is connected with the first wide-angle lens so as to selectively drive the first wide-angle lens to extend out of the frame or retract into the middle frame along the axis direction of the first through hole;

the second lens module comprises a second wide-angle lens and a second telescopic assembly, and the second telescopic assembly is arranged in the middle frame and is connected with the second wide-angle lens so as to selectively drive the second wide-angle lens to extend out of the frame or retract into the middle frame along the axis direction of the second through hole;

and the optical axis of the wide-angle lens of the first lens module and the optical axis of the wide-angle lens of the second lens module are positioned on the same plane.

12. The mobile terminal of any of claims 1 to 5, wherein the lens module further comprises a cover plate for closing the through hole when the wide-angle lens is retracted into the middle frame.

13. The mobile terminal of claim 12, wherein the lens module further comprises:

the cover plate is hinged to the edge, located at the through hole, of the frame, and the reset piece is used for resetting the cover plate.