CN210807352U - Mobile terminal - Google Patents

Abstract

The embodiment of the application provides a mobile terminal, wherein the main body comprises a shell with an accommodating cavity, a vacuum generating device and a camera, wherein the vacuum generating device and the camera are arranged in the accommodating cavity; the external imaging component comprises a lens component and an external body connected with the lens component; by means of the negative pressure generated by the vacuum generating device, the external body can be adsorbed on the shell, so that the lens assembly can be superposed with the camera for shooting. The mobile terminal of this application embodiment adsorbs external formation of image part in the main part through the mode that adopts vacuum adsorption, both can guarantee that external formation of image part can firmly install in the main part to satisfy the requirement of super microspur shooting, the dismouting of external formation of image part of can being convenient for again.

Description

Mobile terminal

Technical Field

The utility model belongs to the technical field of the formation of image, especially, relate to a mobile terminal.

Background

At present, in order to meet different photographing requirements of users, an external camera appears in the prior art, and different photographing effects can be achieved by matching the external camera with a camera of a mobile phone. The related external camera and the mobile phone are mainly connected in two modes, one mode is that the external camera is arranged on a shell of the mobile phone through a connecting piece, the external camera can slide relative to the shell of the mobile phone but cannot be taken down from the shell of the mobile phone, the arrangement mode is not beneficial to lightening and thinning of the mobile phone, the other mode is that an external imaging part is independently provided, the external camera is one part of the external imaging part, and the external camera is detachably connected with the mobile phone through the external imaging part. However, the detachable connection mode of the related external imaging component and the mobile phone is difficult to disassemble and assemble, or the connection between the external imaging component and the mobile phone is not firm, so that the ultra-micro distance shooting cannot be realized.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present application provides a mobile terminal that can ensure that an external imaging component can be installed firmly, and can facilitate the external imaging component to be detached.

In order to achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

an embodiment of the present application provides a mobile terminal, including:

the main body comprises a shell with an accommodating cavity, a vacuum generating device and a camera, wherein the vacuum generating device and the camera are arranged in the accommodating cavity;

the external imaging component comprises a lens component and an external body connected with the lens component; by means of the negative pressure generated by the vacuum generating device, the external body can be adsorbed on the shell, so that the lens assembly can be superposed with the camera for shooting.

Further, the external body comprises a positioning seat, a connecting part and a mounting part;

the connecting part is connected with the positioning seat and the mounting part;

the lens assembly is arranged on the mounting piece, and the external body is adsorbed on the shell through the positioning seat.

Further, a first groove communicated with the air guide port is formed in the shell;

the positioning seat is matched with the first groove, so that the vacuum generating device can generate negative pressure in the first groove.

Furthermore, the positioning seat comprises a limiting block and a cover plate arranged at one end of the limiting block, and an opening is formed in one side, away from the accommodating cavity, of the first groove;

the limiting block is in plug-in fit with the first groove, and the cover plate can cover the opening.

Further, the main part still including set up the air duct in holding the chamber, the one end of air duct with vacuum generating device intercommunication, the other end of air duct with lead the gas port intercommunication.

Further, the main body further comprises a controller disposed in the receiving cavity;

the controller is electrically connected with the vacuum generating device to control the vacuum generating device to generate or release negative pressure at the air guide opening.

Further, the connecting part is a length adjusting mechanism;

the length adjusting mechanism can adjust the relative distance between the connecting part and the positioning seat so as to enable the lens assembly to be superposed with the camera; or the like, or, alternatively,

the connecting part is rotationally connected with the positioning seat.

Further, the length adjusting mechanism is a telescopic rod or a sliding assembly.

Further, the mounting part is a mounting disc with a plurality of mounting holes, the mounting disc is rotatably connected with the connecting part, the number of the lens assemblies is multiple, and each lens assembly is respectively arranged in the corresponding mounting hole;

the mounting disc can be rotated to stack one of the lens assemblies with the camera.

Further, the camera is a long-focus camera, and the lens assembly is a microscope lens assembly.

The embodiment of the application provides a mobile terminal, adsorbs external imaging part in the main part through the mode that adopts vacuum adsorption, both can guarantee that external imaging part can firmly install in the main part to satisfy the requirement of super microspur shooting, the dismouting of external imaging part of can being convenient for again.

Drawings

Fig. 1 is a schematic structural diagram of a camera according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a mobile phone shooting a subject;

fig. 3 is a partial cross-sectional view of a main body of a mobile terminal according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of an external imaging component of a mobile terminal according to an embodiment of the present disclosure;

FIG. 5 is a partial cross-sectional view of a perspective of the circumscribing imaging member as provided in FIG. 4;

FIG. 6 is a schematic view of the external imaging component of FIG. 4 attached to the body of FIG. 3 with the lens assembly in a stacked position;

FIG. 7 is a cross-sectional view A-A of FIG. 6, primarily illustrating the mating relationship of the body to the mount;

FIG. 8 is a schematic view of the external imaging component of FIG. 4 attached to the body of FIG. 3, with the lens assembly in a non-stacked position;

fig. 9 is a schematic structural diagram of an external imaging component of another mobile terminal according to an embodiment of the present application.

Reference numerals: a main body 10; a housing 11; the air guide port 11 a; a first groove 11 b; the accommodation chamber 11 c; a vacuum generating device 12; a camera 13; a lens 131; a Sensor 132; a PCB board 133; a retainer 134; an airway tube 14; a screen 15; circumscribing the imaging member 20, 20'; a lens assembly 21; a circumscribed body 22; a positioning seat 221; a stopper 2211; a cover plate 2212; step surface 2212 a; a connecting portion 222; mounts 223, 223'; mounting holes 223a, 223 a'; an object 30; the screen magnifies the image 40.

Detailed Description

The present application will now be described in further detail with reference to the accompanying drawings and specific examples.

It should be noted that, in the case of no conflict, the technical features in the examples and examples of the present application may be combined with each other, and the detailed description in the specific embodiments should be interpreted as an explanation of the gist of the present application and should not be construed as an improper limitation of the present application.

In the description of the present application, the terms of "vertical," "horizontal" orientation or positional relationship are based on the orientation or positional relationship shown in fig. 3, it being understood that these terms of orientation are merely for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present application.

In the description of the present application, a plurality means two or more.

The mobile terminal of the present application may include a mobile phone, a notebook computer, a tablet computer, a PDA (Personal digital assistant), a portable computer, and other terminal devices. The camera 13 is a component of the mobile terminal, and can implement a photographing function of the mobile terminal.

As shown in fig. 1 and 2 in particular, the camera 13 includes a lens 131, a Sensor (image Sensor) 132, a PCB (printed circuit board) 133, and a holder 134. The Sensor132 includes, but is not limited to, a CCD (charge Coupled Device), a CMOS (Complementary Metal Oxide Semiconductor). The Sensor132 is fixed on the PCB board 133, the holder 134 is disposed on a side of the Sensor132 close to the object 30 and connected to the PCB board 133, and the holder 134 is provided with a cavity for accommodating the lens 131, the lens 131 being opposite to the Sensor 132. In the photographing process, light of the object 30 enters the camera 13, incident light first enters the lens 131 and then reaches the Sensor132, photons in the light strike the Sensor132 to generate movable charges, which is an internal photoelectric effect, the movable charges are collected to form electric signals, Digital-to-analog conversion is performed through an a/D converter, namely, the electric signals are converted into Digital signals, the Digital signals are sent to a Digital Signal Processor (DSP) for processing, and finally the Digital signals are transmitted to the screen 15 of the terminal device to form a display image, namely, photographing of the object 30 is achieved. Specifically, the DSP includes an ISP (Image signal processor) and a JPEG encoder (JPEG Image decoder), wherein the ISP is a key for determining the smoothness of the Image. It will be appreciated that for CMOS, the DSP may be integrated within the CMOS. The CMOS has the advantages of high integration level, low power consumption, low cost and the like, and is more suitable for mobile phones with limited installation space.

The PCB board 133 may be a hard board, a soft board, or a rigid-flex board. When the mobile phone adopts the CMOS, the CMOS can be applied to any one of a hard board, a soft board, or a rigid-flex board. When the mobile phone adopts the CCD, only the rigid-flexible board can be used, and the rigid-flexible board has the highest price among the three boards, so that when the CCD is adopted, the cost of the mobile phone is higher.

In the embodiment of the present application, the camera 13 can perform close-range macro photography, and macro photography refers to that, on the premise of ensuring that an image of a photographed object is clear, the terminal device photographs at a higher optical magnification when being closer to the photographed object through the optical capability of the lens 131, wherein the optical magnification refers to a ratio between an imaging height of a Sensor and a height of the photographed object.

It should be noted that, the magnification sensed by the user is an optical magnification, a screen magnification, a digital magnification, the optical magnification refers to a ratio of a height of an image formed on the Sensor to a height of the object, the screen magnification refers to a ratio of a screen size to the Sensor size, and the digital magnification refers to a ratio of a size on the screen after the user manually enlarges a part of the screen to generate enlargement of the same part to a size on the screen before enlargement. Specifically, for example, as shown in fig. 2, light reflected by the object 30 reaches the Sensor132 after passing through the lens 131, and then an electrical signal is generated, and is converted into a digital signal by the analog-to-digital conversion device, and is transmitted to the screen 15 of the mobile terminal to form an image after being processed by the DSP digital signal processing chip, and the user can magnify a part of the image on the screen 15 as needed, and the image displayed on the screen 15 is the screen magnified image 40.

Specifically, according to the basic optical imaging principle, tan (FOV/2) is the imaging height/focal length which is the subject height/object distance, and the optical magnification is the imaging height/subject height which is the focal length/object distance. Wherein, fov (field Of view) is the angle Of view, which is the angle formed by two sides Of the optical instrument that the center Of the lens Of the optical instrument is the vertex and the measured or shot object can pass through the maximum range Of the center Of the lens. The FOV is typically measured as the field of view of the lens, e.g., a conventional standard lens with an angle of view around 45 degrees and a wide-angle lens with an angle of view above 60 degrees. According to the above formula for calculating the optical magnification, the increase of the optical magnification can be realized by decreasing the working distance or increasing the focal length, that is, on the premise of ensuring clear imaging, the lens 131 is as close to the object as possible and the focal length of the lens 131 is increased. The working distance is a distance from the subject to the front end of the lens.

According to the gaussian imaging formula, 1/f is 1/u + 1/v. Wherein f is the focal length; u is the object distance; v is the image distance; when u is more than 2f, the shot object forms a reduced inverted real image on the Sensor 132; when u is 2f, v is f, namely the focal length is equal to the image distance, the shot object forms an equal-size inverted real image on the Sensor 132; when f < u <2f, the shot object forms an enlarged inverted real image on the Sensor 132; when u is f, the shot object does not form an image on the Sensor 132; when u < f, it is a virtual image, the subject cannot be imaged on the Sensor132 in real. Therefore, v and u have opposite changing trends with constant focal length f, and v decreases with increasing u and v increases with decreasing u. Since macro photography is a photography method for obtaining an enlarged image of an object in a close range, that is, the object is an enlarged real image on a Sensor, when close range macro photography is performed, the object distance u is relatively small, and the working distance is also relatively small, so that the focal length of the lens 131 needs to be smaller to satisfy the requirement of focusing, so as to ensure that f < u <2f, and the image distance and the object distance satisfy the above gaussian imaging formula.

The superposition shooting in the present application refers to superposing the camera 13 and the lens assembly 21 built in the mobile terminal to form a composite camera, more specifically, the lens assembly 21 is an object side of the lens 131 superposed in the camera 13, and the lens assembly 21 and the lens 131 jointly form the composite lens. According to the different types of the lens assembly 21 and the lens assembly 131, various types of composite lenses can be combined, taking super-macro superposition shooting as an example, when super-macro superposition shooting is required, the lens assembly 21 is superposed on the object side of the lens 131, the lens assembly 21 and the lens 131 jointly form the composite super-macro lens, incident light sequentially passes through the lens assembly 21 and the lens 131, when super-macro superposition shooting is not required, the lens assembly 21 is removed, and shooting is directly carried out by adopting the camera 13.

The internationally acknowledged statement in the photographic world is that shooting with optical magnification of about 1: 1-1: 4 belongs to macro photography, and in the embodiment of the application, the composite macro lens refers to a macro lens which can still realize focusing when the working distance is less than 10mm, namely, a Sensor can still clearly image when the working distance is less than 10 mm. In the present embodiment, "less than" does not include the number. In one embodiment, the ultramicro-distance range is 3mm to 9 mm. That is, when the working distance is 3mm to 9mm, the composite ultramicro lens can image, and can clearly image on the Sensor 132.

The composite ultramicro lens can be a composite long-focus ultramicro lens or a composite wide-angle ultramicro lens. Illustratively, the focal length f of the compound wide-angle ultramicro-distance lens ranges from 1.3mm to 2.2mm, the FOV of the ultramicro-distance lens ranges from 70 ° to 78 °, illustratively, the effective focal length f of the compound wide-angle ultramicro-distance lens is 1.335mm, the FOV at the maximum image height is 77.6 °, the aperture value (f-number) is 2.8, and clear imaging can be achieved under the condition that the working distance is 3mm, that is, the compound wide-angle ultramicro-distance lens can focus on a shot object with the working distance of about 3 mm.

For convenience of description, in the embodiment of the present application, a mobile terminal is taken as an example for description.

Referring to fig. 3 and 4, the mobile terminal includes a main body 10 and an external imaging component 20. The main body 10 includes a housing 11 having an accommodating chamber 11c, a vacuum generating device 12 disposed in the accommodating chamber 11c, and a camera 13, and the housing 11 is formed with an air guide port 11a communicating with the vacuum generating device 12. The external imaging component 20 comprises a lens component 21 and an external body 22 connected with the lens component 21; by means of the negative pressure generated by the vacuum generator 12, the external body 22 can be adsorbed on the housing 11, so that the lens assembly 21 can be overlapped with the camera 13 for shooting.

Specifically, the vacuum generator 12 of the present embodiment is a vacuum generator, and the vacuum generator is a pneumatic element that forms a certain vacuum degree by utilizing the flow of compressed air, and the main principle thereof is to utilize a positive pressure air source to generate negative pressure, so that the vacuum generator can adsorb various materials.

In the correlation technique, there is a connection mode of being connected external imaging part and body magnetism, this connection mode only leans on magnetic attraction to connect external imaging part and body, however, under super little apart from the shooting condition, the distance between object and the camera lens is only at the millimeter magnitude, if magnetic attraction is less relatively, external imaging part receives the collision easily and takes place the skew, can influence the alignment precision and the imaging effect that stack was shot from this, if magnetic attraction is bigger, when needs pull down external imaging part, magnetic attraction is difficult to overcome again to external imaging part, make external imaging part can't realize the quick detach from this. Still another kind is connected external formation of image part and body machinery, for example the connected mode of joint, grafting etc. mechanical connection is difficult to guarantee that external formation of image part is inseparable with the body laminating, from this, the condition of rocking appears easily in the stack shooting process, and then also can influence the alignment accuracy and the formation of image effect that the stack was shot.

The external imaging component 20 and the main body 10 of the embodiment are connected in a vacuum adsorption mode, the external imaging component 20 and the main body 10 can be tightly attached by using negative pressure generated by the vacuum generating device 12, and the external imaging component 20 can be easily taken down from the main body 10 after the negative pressure is relieved by the vacuum generating device 12, so that the requirement of ultra-micro distance shooting can be met, and the external imaging component 20 can be conveniently detached.

With continued reference to fig. 3 and 7, the main body 10 of the present embodiment further includes an air tube 14 disposed in the accommodating chamber 11c, one end of the air tube 14 is communicated with the vacuum generating device 12, and the other end of the air tube 14 is communicated with the air guide opening 11 a. By providing the air duct 14, it is possible to facilitate the arrangement of the vacuum generating device 12 at a suitable position in the accommodating chamber 11 c. In this embodiment, only one airway tube 14 is provided, and in other embodiments, a plurality of airway tubes 14 may be provided, or airway tubes 14 may not be provided.

The camera 13 of this embodiment is a telephoto camera, that is, the lens 131 is a telephoto lens, the lens assembly 21 is a microscope lens assembly, the number of lenses in the microscope lens assembly may be one or more, and the microscope lens assembly and the telephoto lens are overlapped to combine a long-focus submicro-distance lens, so that the mobile terminal can have a function of submicro-distance shooting. In other embodiments, when the camera 13 is a wide-angle camera, the wide-angle lens and the microscope lens assembly may be combined to form a wide-angle macro lens.

It is understood that the composite lens formed by superimposing the lens 131 and the lens assembly 21 is not limited to the composite subminiature lens, and in other embodiments, the camera 13 may be any type of camera, for example, the camera 13 may also be a filter camera, a macro camera, a fisheye camera, etc., and the lens assembly 21 may also be any type of lens assembly that can be superimposed on the above-mentioned camera, for example, the lens assembly 21 may be a convex lens, and the composite lens formed by superimposing the lens 131 and the lens assembly 21 may include, but is not limited to, a composite lens with macro or subminiature photographing function according to different combinations.

Referring to fig. 4 and fig. 5, the external body 22 of the present embodiment includes a positioning seat 221, a connecting portion 222 and a mounting member 223. The connecting part 222 connects the positioning seat 221 and the mounting part 223, the lens assembly 21 is disposed on the mounting part 223, and the external body 22 is adsorbed on the housing 11 through the positioning seat 221.

Specifically, the mounting member 223 of the present embodiment is fixedly connected to the connecting portion 222, only one mounting hole 223a is disposed on the mounting member 223, and only one lens assembly 21 is fixed in the mounting hole 223a, that is, only one lens assembly 21 is disposed in the external imaging component 20 of the present embodiment. In fact, the structure of the mounting member 223 is not limited to this, for example, fig. 9 provides another external imaging component 20 ', the mounting member 223 ' in the external imaging component 20 ' is a mounting plate having a plurality of mounting holes 223a ', the mounting plate is rotatably connected with the connecting portion 222, the number of the lens assemblies 21 is multiple, the magnification ratios of a plurality of lens assemblies 21 can be different, and each lens assembly 21 is respectively arranged in the corresponding mounting hole 223a '. Through rotating the mounting disc, one of the lens assemblies 21 can be superposed with the camera 13, so that various shooting requirements of users can be met. It is understood that the number of the mounting holes 223a ' may be larger than the number of the lens assemblies 21, for example, at least one mounting hole 223a ' may be left in the mounting plate without the lens assembly 21, when the mounting hole 223a ' without the lens assembly 21 is aligned with the camera 13, it is equivalent to that the main body 10 only uses the camera 13 of itself for shooting, and does not perform the overlay shooting through the lens assembly 21.

Referring to fig. 3, fig. 4 and fig. 7, a first groove 11b communicating with the air guide opening 11a is formed on the housing 11 of the present embodiment, and the positioning seat 221 is matched with the first groove 11b, so that the vacuum generating device 12 can generate a negative pressure in the first groove 11 b.

Specifically, an opening is formed in a side, away from the accommodating cavity 11c, of the first groove 11b in this embodiment, the positioning seat 221 can be covered at the opening, so that a relatively sealed space can be formed in the first groove 11b, and the vacuum generating device 12 can make the first groove 11b in a negative pressure state by extracting gas in the first groove 11b, so that the positioning seat 221 can be adsorbed on the housing 11.

With reference to fig. 3, fig. 4 and fig. 7, the positioning seat 221 of the present embodiment includes a limiting block 2211 and a cover plate 2212 disposed at one end of the limiting block 2211, and one side of the first groove 11b away from the accommodating cavity 11c has an opening; the limiting block 2211 is matched with the first groove 11b in an inserting mode, and the cover plate 2212 can cover the opening of the first groove 11 b.

Specifically, the bottom wall of the first groove 11b of this embodiment is recessed towards the side close to the accommodating cavity 11c, an arc surface is formed, and a gap is formed between the bottom wall of the limiting block 2211 and the bottom wall of the first groove 11b, so that the gas in the adsorption space can be conveniently extracted. The peripheral dimension of the cover plate 2212 is greater than that of the limit block 2211, a step surface 2212a facing the housing 11 is formed at the junction of the cover plate 2212 and the limit block 2211, after the limit block 2211 is inserted into the first groove 11b, the vacuum generation device 12 can enable the step surface 2212a to be tightly attached to the housing 11 by extracting gas in the adsorption space, and therefore the external imaging component 20 can be prevented from being loosened in the superposition shooting process, in addition, the external imaging component 20 can be positioned on the one hand through the insertion fit of the limit block 2211 and the first groove 11b, and on the other hand, after the vacuum generation device 12 relieves negative pressure, the external imaging component 20 can be prevented from falling off from the main body 10 and breaking the external imaging component 20.

It can be understood that the first groove 11b may not be disposed on the housing 11, and the positioning seat 221 may not be disposed with the limiting block 2211, for example, the positioning seat 221 may be directly covered on the air guide opening 11a, or a second groove communicated with the air guide opening 11a may be formed on the positioning seat 221, as long as it is ensured that the external body 22 can be adsorbed on the housing 11 by the negative pressure generated by the vacuum generating device 12.

Further, the main body 10 of the present embodiment further includes a controller (not shown) disposed in the accommodation chamber 11 c. The controller is electrically connected to the vacuum generating device 12 to control the vacuum generating device 12 to generate or release the negative pressure. Those skilled in the art will appreciate that the controller may employ various existing chips having signal inputs and signal outputs as the control means, and may be controlled by an electrical signal control method or a software control method.

Referring to fig. 3, fig. 4, fig. 6 and fig. 8, the connecting portion 222 of the present embodiment is a length adjusting mechanism. The length adjustment mechanism can adjust the relative distance between the connection portion 222 and the positioning seat 221, so that the lens assembly 21 can be superposed with the camera 13.

Specifically, the positioning seat 221 of this embodiment sets up the below at camera 13, length adjustment mechanism is the telescopic link, the flexible end and the installed part 223 of telescopic link are connected, the telescopic link is through flexible, can adjust self length, thereby can follow the vertical relative position between lens subassembly 21 and the camera 13 of main part 10, when the user needs to carry out the stack shooting, can remove lens subassembly 21 to can carry out the position that superposes with camera 13, when the user need not carry out the stack shooting, can remove lens subassembly 21 again, so that the user can only use self camera 13 to shoot, therefore, can be convenient for the user to switch between stack shooting and non-stack shooting, and need not frequently dismouting external imaging part 20.

In other embodiments, the length adjustment mechanism may also be a sliding assembly, for example, the sliding assembly may be a sliding rail and a guiding seat matched with the sliding rail, the sliding rail is connected with the positioning seat 221, the mounting part 223 is connected with the guiding seat, and the positioning seat 221 slides along the sliding rail to adjust the relative position between the lens assembly 21 and the camera 13 along the vertical direction of the main body 10. The sliding component can also be a sliding groove and a sliding block matched with the sliding groove, and the length of the sliding component can be adjusted by ensuring the length adjusting mechanism. In other embodiments, the positioning seat 221 may be disposed on one side of the camera 13 along the transverse direction of the main body 10, and the relative position between the lens assembly 21 and the camera 13 may be adjusted along the transverse direction of the main body 10 by the length adjusting mechanism. Alternatively, the connecting portion 222 may also be rotatably connected to the positioning seat 221, and by rotating the connecting portion 222, the lens assembly 21 may be enabled to be overlapped with or not overlapped with the camera 13.

It can be understood that, a length adjustment mechanism is not necessarily provided in the external imaging component 20, for example, the connection portion 222 may be a fixing rod, one end of the fixing rod is connected to the positioning seat 221, the other end of the fixing rod is connected to the mounting portion 223, the length of the fixing rod is fixed, the specific length dimension is adapted to the setting position of the camera 13, and after the external imaging component 20 is mounted on the main body 10, the lens assembly 21 can be directly stacked with the camera 13.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A mobile terminal, comprising:

the main body comprises a shell with an accommodating cavity, a vacuum generating device and a camera, wherein the vacuum generating device and the camera are arranged in the accommodating cavity;

the external imaging component comprises a lens component and an external body connected with the lens component; by means of the negative pressure generated by the vacuum generating device, the external body can be adsorbed on the shell, so that the lens assembly can be superposed with the camera for shooting.

2. The mobile terminal of claim 1, wherein the external body comprises a positioning seat, a connecting portion and a mounting member;

the connecting part is connected with the positioning seat and the mounting part;

the lens assembly is arranged on the mounting piece, and the external body is adsorbed on the shell through the positioning seat.

3. The mobile terminal of claim 2, wherein the housing is formed with a first groove communicating with the air guide opening;

the positioning seat is matched with the first groove, so that the vacuum generating device can generate negative pressure in the first groove.

4. The mobile terminal according to claim 3, wherein the positioning seat comprises a limiting block and a cover plate disposed at one end of the limiting block, and an opening is formed in a side of the first groove away from the accommodating cavity;

the limiting block is in plug-in fit with the first groove, and the cover plate can cover the opening.

5. The mobile terminal according to any one of claims 1 to 4, wherein the main body further comprises a gas-guide tube disposed in the accommodating cavity, one end of the gas-guide tube is communicated with the vacuum generating device, and the other end of the gas-guide tube is communicated with the gas-guide opening.

6. The mobile terminal of any of claims 1-4, wherein the body further comprises a controller disposed in the receiving cavity;

the controller is electrically connected with the vacuum generating device to control the vacuum generating device to generate or release negative pressure at the air guide opening.

7. The mobile terminal according to any of claims 2-4, wherein the connecting portion is a length adjustment mechanism;

the length adjusting mechanism can adjust the relative distance between the connecting part and the positioning seat so as to enable the lens assembly to be superposed with the camera; or the like, or, alternatively,

the connecting part is rotationally connected with the positioning seat.

8. The mobile terminal of claim 7, wherein the length adjustment mechanism is a telescoping rod or a sliding assembly.

9. The mobile terminal according to any of claims 2-4, wherein the mounting member is a mounting plate having a plurality of mounting holes, the mounting plate is rotatably connected to the connecting portion, the number of the lens assemblies is plural, and each lens assembly is respectively disposed in the corresponding mounting hole;

the mounting disc can be rotated to stack one of the lens assemblies with the camera.

10. The mobile terminal of any of claims 1-4, wherein the camera is a tele camera and the lens assembly is a micro lens assembly.

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