CN109862139B

CN109862139B - Camera assembly, mobile terminal and control method of camera assembly

Info

Publication number: CN109862139B
Application number: CN201711245869.2A
Authority: CN
Inventors: 曾赞坚
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-11-30
Filing date: 2017-11-30
Publication date: 2021-03-19
Anticipated expiration: 2037-11-30
Also published as: WO2019105362A1; CN109862139A

Abstract

The application provides a camera assembly, a mobile terminal and a control method of the camera assembly. The camera assembly comprises a fixing frame, a supporting device, a guiding device, a camera module, a connecting rod mechanism and a motor, wherein the guiding device is connected with the fixing frame, the supporting device is connected with the guiding device, the supporting device is connected with the fixing frame in a sliding mode through the guiding device, the camera module is arranged on the supporting device, the connecting rod mechanism is abutted to the supporting device, the output end of the motor is connected with the connecting rod mechanism, the motor is used for driving the connecting rod mechanism to rotate, so that the connecting rod mechanism exerts force for the supporting device to slide on the supporting device in the sliding direction of the supporting device, and the supporting device slides downwards under the guiding of the guiding device. The scheme can achieve the purpose that the camera module freely extends out of the mobile terminal.

Description

Camera assembly, mobile terminal and control method of camera assembly

Technical Field

The present application relates to the field of display technologies, and in particular, to a camera assembly, a mobile terminal, and a control method for the camera assembly.

Background

Mobile terminals such as smart phones, tablet PCs, notebook PCs, and PDAs can provide images or videos to users for viewing through display screens. Mobile terminals are becoming more and more rich in functions, such as a video recording function, a video chatting function, a photographing function, and the like. With the development of intelligent communication technology, providing a large screen to display various functions of a mobile terminal has become a new issue.

At present, mobile terminals generally have functions of taking pictures, photographing and the like which can be completed only by matching camera modules. Therefore, a non-display area needs to be set for the camera module of the mobile terminal, and a camera mounting hole is formed in the non-display area to mount the camera module. Therefore, under the condition that the size of the mobile terminal is fixed, the non-display area needs to be arranged for the camera module to form the mounting hole of the camera, so that large-screen image display of the mobile terminal is greatly limited.

Disclosure of Invention

The application provides a camera assembly, this camera assembly includes the mount, strutting arrangement, guider, the camera module, link mechanism and motor, guider is connected with the mount, strutting arrangement is connected with guider, strutting arrangement passes through guider and mount sliding connection, the camera module sets up on strutting arrangement, link mechanism butt strutting arrangement, the output and the link mechanism of motor are connected, the motor is used for driving link mechanism and rotates, so that link mechanism exerts the gliding power of confession strutting arrangement to strutting arrangement on strutting arrangement's the slip direction, strutting arrangement is slided under guider ground direction.

The application also provides a mobile terminal which comprises the camera assembly.

The application also provides a mobile terminal which comprises a display screen assembly, a shell assembly and a camera assembly, wherein the display screen assembly is fixed on the shell assembly, the camera assembly is arranged in the shell assembly, and at least part of area of the camera assembly is overlapped with a display area of the display screen assembly in a non-extending state; the camera assembly comprises a fixing frame, a supporting device, a guiding device, a camera module, a connecting rod mechanism and a motor, wherein the supporting device is connected with the fixing frame in a sliding mode through the guiding device, the motor is used for driving the connecting rod mechanism to rotate so that the connecting rod mechanism exerts sliding force on the supporting device, and the supporting device is guided by the guiding device to slide downwards so as to drive the camera module to stretch out of the shell assembly.

The application further provides a control method of the camera assembly of the mobile terminal, the camera assembly comprises a fixing frame, a supporting device, a guiding device, a camera module, a link mechanism and a motor, the guiding device is connected with the fixing frame, the supporting device is connected with the guiding device, the supporting device is in sliding connection with the fixing frame through the guiding device, the camera module is arranged on the supporting device, the link mechanism is abutted against the supporting device, and the output end of the motor is connected with the link mechanism; the control method comprises the following steps: the mobile terminal receives a control instruction; the mobile terminal supplies power to the motor; the motor drives the connecting rod mechanism to rotate so that the connecting rod mechanism exerts force for the supporting device to slide on the supporting device in the sliding direction of the supporting device; the guide device guides the support device to slide.

This application camera module sets up on strutting arrangement, strutting arrangement is connected with guider, guider is connected with the mount, strutting arrangement passes through guider and mount sliding connection, link mechanism butt strutting arrangement, the motor is used for driving link mechanism and rotates, so that link mechanism exerts the gliding power of confession strutting arrangement to strutting arrangement on strutting arrangement's slip direction, strutting arrangement slides under guider ground direction, and then strutting arrangement drives the removal of camera module, in order to realize the purpose that camera module freely stretches out and draws back.

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 is an exploded view of a mobile terminal according to the present application;

FIG. 2 is a schematic view of a camera assembly and display screen assembly of the present application in a partially stacked relationship;

FIG. 3 is a schematic view of a camera assembly and display screen assembly in a fully stacked relationship according to the present application;

FIG. 4 is a schematic cross-sectional view of a camera assembly area of a mobile terminal of the present application;

FIG. 5 is a schematic structural diagram of a camera assembly according to an embodiment of the present application;

FIG. 6 is a perspective view of the bracket of FIG. 5;

FIG. 7 is a schematic view of another angled configuration of a camera head assembly according to an embodiment of the present application;

fig. 8 is a flowchart illustrating a method of controlling a camera assembly of a mobile terminal according to an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a camera head assembly according to another embodiment of the present application;

fig. 10 is a flowchart illustrating a method of controlling a camera assembly of a mobile terminal according to another embodiment of the present application;

FIG. 11 is a schematic structural diagram of a camera head assembly according to yet another embodiment of the present application;

fig. 12 is a flowchart illustrating a method of controlling a camera assembly of a mobile terminal according to still another embodiment of the present application;

FIG. 13 is a schematic structural diagram of a camera assembly according to yet another embodiment of the present application;

fig. 14 is a flowchart illustrating a method of controlling a camera assembly of a mobile terminal according to still another embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures.

Referring to fig. 1 and 2, fig. 1 is an exploded structure diagram of a mobile terminal according to the present application, and fig. 2 is a diagram illustrating a relationship between a camera assembly and a display screen assembly according to the present application.

The mobile terminal comprises a display screen assembly 10, a shell assembly 20 and a camera assembly 30, wherein the display screen assembly 10 is fixed on the shell assembly 20, the camera assembly 30 is arranged in the shell assembly 20 and can extend out of the shell assembly 20 from the end part of the shell assembly 20, and at least part of the area of the camera assembly 30 is arranged in a stacking mode with a display area 122 of the display screen assembly 10 under the non-extending state. The mobile terminal includes a smart phone, a tablet, a notebook, a smart watch, a PDA, and the like, which is not limited herein.

The display screen assembly 10 may include a panel 12 and a display screen 14, the panel 12 being disposed on a side of the display screen 14 away from the housing assembly 20, and the panel 12 being disposed on the housing assembly 20. The panel 12 has a display area 122 that exposes information displayed by the display screen 14, and a non-display area 144 that blocks light emitted from the display screen 14. The display screen 14 is used for displaying information, such as images, video or text. The non-display area 144 may also be used to reserve installation space for components such as headphones or sensors.

At least a portion of the area of camera assembly 30 is positioned in a non-extended state overlying display area 122 of display screen assembly 10. In some embodiments, a partial region of the camera assembly 30 is stacked with the display region 122 of the display screen assembly 10 in a non-extended state, the camera assembly 30 can be extended from the end of the housing assembly 20 to the housing assembly 20, and the camera assembly 30 partially does not occupy a spatial position of the display region 122, so that the area of the display region 122 is enlarged and the area of the non-display region 144 is reduced. Referring to fig. 3, fig. 3 is a schematic diagram of a camera module and a display panel module according to the present invention in a fully stacked relationship. In other embodiments, the entire area of the camera assembly 30 is stacked with the display area 122 of the display screen assembly 10 in a non-extended state, the camera assembly 30 can be extended out of the housing assembly 20 from the end of the housing assembly 20, and the camera assembly 30 does not occupy the space position of the display area 122 at all, so that the area of the display area 122 is further enlarged, and the area of the non-display area 144 is further reduced.

Parts such as an earpiece or a sensor that need to occupy the spatial position of the display area 122 may be disposed at other positions except the display area 144, and for example, the parts such as the earpiece or the sensor may be disposed on the camera assembly 30, so that the area of the display area 122 is further enlarged, and the area of the non-display area 144 is further reduced, thereby achieving an effect that the display area 122 approximately completely replaces the spatial position of the non-display area 144.

Referring to fig. 1 and 4, fig. 4 is a schematic cross-sectional view of a camera assembly area of a mobile terminal according to the present application.

The casing assembly 20 may include a casing 22 and a dust-proof plate 24, the panel 12 is covered on the casing 22, the display screen 14 is disposed in a space between the panel 12 and the casing 22, the camera assembly 30 is disposed in the casing 22 and can extend out of the casing 22 from an end of the casing 22, the casing 22 is provided with an opening 221 at a position corresponding to an end of the camera assembly 30 sliding out of the casing 22, the dust-proof plate 24 is accommodated in the opening 221 and seals the opening 221, the dust-proof plate 24 is elastically hinged to the casing 22, and the dust-proof plate 24 is used for preventing external dust from entering the interior of the mobile terminal. Alternatively, the housing 22 may include a front shell 222 and a rear shell 224, the front shell 222 is fixed on the rear shell 224 to form a mounting space, the camera assembly 30 is installed in the mounting space, the panel 12 covers the front shell 222, the rear shell 224 may be correspondingly provided with an opening 221, and the dust guard 24 is accommodated in the opening 221 of the rear shell 224 and is elastically hinged to the rear shell 224. The opening 221 may also be formed in the front shell 222, the shell may further include a middle frame (not shown in fig. 1), and the opening 221 may also be formed in the middle frame, which is not limited herein.

Specifically, the dust-proof plate 24 is hinged to the housing 22 so that the dust-proof plate 24 can rotate around the housing 22, the dust-proof plate 24 is connected to the housing 22 through the elastic member 40, and the elastic member 40 elastically contracts to pull the dust-proof plate 24 back into the opening 221. The elastic member 40 may be a spring, the elastic member 40 may also be an iron elastic sheet, and the elastic member 40 may also be other parts with a telescopic property. When the camera assembly 30 is in the extended state, the dust-proof plate 24 is pushed out of the opening 221 by the camera assembly 30, and when the camera assembly 30 is in the non-extended state, the dust-proof plate 24 automatically rebounds and is accommodated in the opening 221. The dust-proof plate 24 may also be directly hinged to the housing 22, and when the camera assembly 30 is retracted into the mobile terminal, the dust-proof plate 24 may fall back to the opening 221 by an external force, such as an artificial force or the self-weight of the dust-proof plate 24, which is not limited herein.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a camera assembly according to an embodiment of the present application.

The camera assembly 30 includes a fixing frame 31, a supporting device 32, a guiding device 33, a camera module 34, a motor 35, and a link mechanism 36. The guide device 33 is connected with the fixed frame 31, the support device 32 is connected with the guide device 33, and the support device 32 is connected with the fixed frame 31 in a sliding way through the guide device 33; the camera module 34 is arranged on the supporting device 32, and the supporting device 32 slides under the action of external force, so as to drive the camera module 34 to slide; the linkage 36 abuts the support device 32; the output end of the motor 35 is connected to the link mechanism 36, and the motor 35 can drive the link mechanism 36 to rotate, so that the link mechanism 36 applies a force for sliding the support device 32 to the support device 32 in the sliding direction of the support device 32, so as to slide the support device 32, and further the support device 32 slides stably under the guidance of the guide device 33.

Wherein, the motor 35 can rotate in the power-on state, and can change the direction of rotation according to the direction of the current, so that the link mechanism 36 can rotate in the forward direction or in the reverse direction, and the link mechanism 36 applies the acting force to the supporting device 32. In addition, the motor 35 can determine the rotation speed according to the magnitude of the current, so that the linkage 36 drives the support device 32 to move at different speeds. The motor 35 may be fixed on the bracket 31, and the motor 35 may also be fixed on a position other than the bracket 31 in the mobile terminal, such as a front case or a rear case, which is not limited herein.

The link mechanism 36 refers to a mechanism composed of at least two members having a certain relative movement connected by a revolute pair or a prismatic pair. In this embodiment, the link mechanism 36 may include a first link 361, a second link 362 and a third link 363, opposite ends of the second link 362 are respectively hinged to ends of the first link 361 and the third link 363, an opposite end of the first link 361 connected to the second link 362 is connected to an output end of the motor 35, an opposite end of the third link 363 connected to the second link 362 is hinged to the fixing frame, the motor 35 drives the first link 361 to rotate, the first link 361 drives the second link 362 to rotate, and the second link 362 drives the third link 363 to rotate. The linkage 36 may be formed by not only the above three members, but in other embodiments, the linkage 36 may be formed by 4, 5 or 6 members, and so on, and is not limited herein.

The linkage 36 abuts the support means 32 and the linkage 36 may impart motion to the support means 32 moving against its edge, thereby driving the support means 32 to move. The components in the link mechanism 36 are connected through a revolute pair or a sliding pair, and the revolute pair or the sliding pair is in surface contact and is wear-resistant. In addition, the contact surface of the revolute pair or the sliding pair is a cylindrical surface or a plane, so that the manufacturing is simple and convenient, higher manufacturing precision is easy to obtain, and the method is suitable for large-scale popularization and manufacturing.

The fixing frame 31 may be a part of a front case, a rear case or other parts of the mobile terminal, and the fixing frame 31 may also be a separate part, which is not limited herein. The fixing frame 31 includes a main body base 312 and a mounting portion 314 connected to the main body base 312. The fixing frame 31 is fixedly connected to the front shell 222, the rear shell 224 or other parts of the mobile terminal through the mounting portion 314, and the main body base 312 is used for mounting the parts including the supporting device 32, the guiding device 33 and the camera module 34. The motor 35 may be fixed to the bracket 31, a motor slot may be provided on a side of the main body base 312 facing away from the link mechanism 36, and the motor 35 may be completely received in the motor slot to reduce the thickness of the camera assembly 30 in the axial direction of the camera module 34. The motor 35 may be fixed to a position other than the bracket 31 in the mobile terminal, such as a front case or a rear case, which is not limited herein.

Referring to fig. 5 and 6, fig. 6 is a schematic perspective view of the bracket 321 in fig. 5.

The supporting device 32 includes a support 321, the support 321 includes a main body 322 and a matching portion 323 connected to the main body 322, the support 321 may have a limiting groove 324 on the main body 322, a through hole 325 is formed on a bottom wall of the limiting groove 324, an axis of the through hole 325 is perpendicular to the main body base 312, the camera module 34 is accommodated in the limiting groove 324, and an axial direction of the camera module 34 coincides with an axis direction of the through hole 325, so that the camera module 34 can completely receive external light, thereby capturing images with higher image quality. The outer side of the blocking wall of the limiting groove 324 can be provided with a reinforcing rib 327, and the reinforcing rib 327 is used for increasing the strength of the support 321, so that the support 321 is prevented from being damaged in the sliding and stretching process, and further the camera module 34 is prevented from being damaged.

A lens groove 326 may be formed on the other side of the bottom wall of the limiting groove 324, the camera module 30 includes a lens (not shown in fig. 5), and the lens groove 326 is used for installing the lens to prevent external dust or moisture from entering the inside of the camera module 34. The lens is completely accommodated in the lens groove, that is, one side of the lens, which is far away from the camera module 34, is lower than the top surface of the blocking wall of the lens groove 326, so that the blocking wall of the lens groove 326 of the bracket blocks the impact of the outside on the lens, thereby effectively reducing the possibility of damaging the lens after the mobile terminal falls.

With reference to fig. 5, the link mechanism 36 can abut against the main portion 322 of the support 321, so that the support 321 is driven by the link mechanism 36 to be closer to the center of gravity thereof, and the sliding stability of the support 321 can be further enhanced. It is understood that the closer the contact of the link mechanism 36 with the main body portion 322 of the stand 321 is disposed to the center of gravity of the stand 321, the better the stability of the stand 321 in sliding. The link mechanism 36 may abut against the engagement portion 323 of the bracket 321, and is not limited herein.

Optionally, in some embodiments, the link mechanism 36 abuts against the bracket 321, the motor 35 drives the link mechanism 36 to rotate, the link mechanism 36 contacts with the bracket 321, and the bracket 321 is driven to move during the rotation of the link mechanism 36. Since the link mechanism 36 cannot give the cradle 321a force of retracting into the mobile terminal, the cradle 321 can fall back into the mobile terminal by an external force, such as an artificial force or the self-weight of the cradle 321, and the like, which is not limited herein.

Optionally, the present embodiment is different from the above embodiments in that the supporting device 32 further includes a retaining member 328, the retaining member 328 connects the bracket 321 and the fixing frame 31, the retaining member 328 has elasticity, the retaining member 328 may be a spring, the retaining member 328 may also be an iron spring, and the retaining member 328 may also be another part having a telescopic property, such as silicon gel or foam, etc. The holder 328 continuously supports the bracket 321 and the fixing frame 31, so that the bracket 321 is continuously contacted with the link mechanism 36, the bracket 321 can continuously operate along with the link mechanism 36, the telescopic sliding of the bracket 321 is ensured under the combined action of the link mechanism 36 and the holder 328, the bracket 321 drives the camera module 34 to slide under the guiding action of the guiding device 33, and the purpose of freely extending and retracting the camera module 34 is further realized. The arrangement can ensure that the support 321 can automatically retract into the fixing frame 31 no matter whether the sliding direction of the support 321 is in the gravity direction or not or whether the external force of a person acts on the support 321, thereby improving the automation degree of the camera head assembly 30.

The number of the holding members 328 may be one or more. The holder 328 may be coupled to the end of the fixing frame 31 and the bracket 321 away from the link mechanism 36, respectively, and the holder 328 applies force to the bracket 321 by restoring its own shape after compression. The holding member 328 may also be connected to the fixing frame 31 and one end of the bracket 321 near the link mechanism 36, respectively, and the holding member 328 applies a force to the bracket 321 by restoring its own deformation after being stretched, which is not limited herein.

The guide device 33 may include a roller 332, the roller 332 is hinged with the matching portion 323 of the bracket 321, the fixing frame 31 is provided with a guide groove 315 corresponding to the roller 332, and the roller 332 rolls along the guide groove 315 to increase stability of the bracket 321 in sliding. The roller 332 and the guide groove 315 have rolling friction, and the friction between the roller 332 and the guide groove 315 is small, so that energy loss can be effectively reduced.

Specifically, the number of the rollers 332 is at least two, the rollers 332 are distributed at two opposite ends of the bracket 321, the number of the rollers 332 may be two, the number of the rollers 332 may also be three, the number of the rollers 332 may also be four, the specific number of the rollers 332 is not illustrated, and when the number of the rollers 332 is odd, the rollers 332 are sequentially and alternately installed at the two opposite ends of the bracket 321. In this embodiment, the number of the rollers 332 is two, so that the sliding stability of the support 321 is further improved without occupying too much space.

The guide groove 315 may be disposed on the main body base 312 of the fixing frame 31, and this arrangement has an advantage that the opening direction of the guide groove 315 is the same as the opening and closing direction of the mold for manufacturing the fixing frame 31, so that the normal mold stripping of the fixing frame 31 is not affected, and the production cost of the mold for manufacturing the fixing frame 31 is reduced.

The guide grooves 315 may also be provided on the guide walls 316 of the fixed frame 31, and the guide walls 316 are provided at opposite ends of the main body base 312 in the sliding direction of the vertical supporting means 32, so that the guide grooves 315 and the rollers 332 may be provided in the width direction of the camera assembly 30, thereby reducing the thickness of the camera assembly 30, and further making the thickness of the mobile terminal smaller.

The guide groove 315 may be replaced with a member having the guide groove 315, and is directly mounted on the guide wall 316 or the body base 312 of the fixing frame 31.

The holder 31 may further include a stopper 317, and the main body base 312 of the holder 31 is provided with the stopper 317 in the sliding direction of the supporting device 32, and the stopper 317 serves to limit the sliding of the supporter 321, and during the protrusion of the supporter 321 beyond the fixing supporter 321, the supporter 321 contacts the stopper 317, thereby preventing the supporter 321 from being separated from the holder 31. Spacing wall 317 sets up the first opening 318 that supplies support 321 to slide and stretch out, and support 321 drives camera module 34 and stretches out from first opening 318 to stretch out mobile terminal's outside by mobile terminal's inside, accomplish the work of shooting collection data.

Referring to fig. 7, fig. 7 is a schematic view of another angle structure of a camera head assembly according to an embodiment of the present application.

In the axial direction of the camera module 34, the main body base 312 of the fixing frame 31 may be opened with a second opening 319 at a sliding position corresponding to the support 321, and the sliding position of the support 321 is a position corresponding to the maximum support 321 that the support 321 extends or retracts. Specifically, the sliding position of the support 321 is a position corresponding to the main body portion 322 of the support 321 to the maximum extent that the support 321 extends or retracts. First opening 318 and second opening 319 are the communicating structure, and support 321 can be outstanding second opening 319 and set up, and support 321 keeps away from camera module 34 one side promptly and surpasss second opening 319 to make camera assembly 30 reduce at the ascending thickness of the axis direction of camera module 34, and then make camera assembly 30 more small and exquisite, occupy the inside space of mobile terminal and further reduce.

In this embodiment, the camera module 34 is disposed on the supporting device 32, the supporting device 32 is connected to the guiding device 33, the guiding device 33 is connected to the fixing frame 31, the supporting device 32 is slidably connected to the fixing frame 31 through the guiding device 33, the link mechanism 36 abuts against the supporting device 32, an output end of the motor 35 is connected to the link mechanism 36, the motor 35 drives the link mechanism 36 to rotate, so that the link mechanism 36 exerts a force on the supporting device 32 in a sliding direction of the supporting device 32 to slide the supporting device 32, thereby driving the supporting device 32 to slide under the guidance of the guiding device 33, and further the supporting device 32 drives the camera module 34 to move, so as to achieve the purpose of freely extending and retracting the camera module 34. In addition, the supporting device 32, the guiding device 33 and the camera module 34 are integrally arranged on the fixing frame 31, so that the camera assembly 30 can be integrally replaced when the camera assembly 30 is installed and replaced, and the installation and replacement efficiency of the camera assembly 30 is improved.

When camera assembly 30 uses and is used in other mobile terminals that need to use camera module 34 to shoot such as cell-phone, flat board or intelligent wrist-watch, if do not need to call camera module 34 to shoot, just make camera module 34 indent mobile terminal's casing 22 inside, if need call camera module 34 to shoot, just make camera module 34 stretch out inside mobile terminal's casing 22. Therefore, the camera assembly 30 does not occupy the position space of the non-display area 144 of the display screen assembly 10, so that the area of the display area 122 of the display screen assembly 10 is further enlarged, the area of the non-display area 144 is further reduced, and the overall aesthetic property of the mobile terminal is improved. In addition, the motor 35 can control the current to achieve the purpose of providing different rotation speeds for the link mechanism 36, and further accurately control the sliding speed of the supporting device 32, so as to meet different photographing experiences of users. The supporting device 32 slides stably under the guiding action of the guiding device 33, so that the shaking of the camera module 34 is reduced, the service life of the camera module 34 is prolonged, and the shooting quality is improved.

Referring to fig. 5 and 8, fig. 8 is a flowchart illustrating a method for controlling a camera assembly 30 of a mobile terminal according to an embodiment of the present application. The camera assembly 30 includes a fixing frame 31, a supporting device 32, a guiding device 33, a camera module 34, a motor 35, and a link mechanism 36. The guide device 33 is connected with the fixed frame 31, the support device 32 is connected with the guide device 33, the support device 32 is connected with the fixed frame 31 in a sliding mode through the guide device 33, the camera module 34 is arranged on the support device 32, the link mechanism 36 abuts against the support device 33, and the output end of the motor 35 is connected with the link mechanism 36.

M101: and the mobile terminal receives the control instruction.

The control instructions received by the mobile terminal comprise instructions needing camera matching, such as a photographing starting instruction, a photographing ending instruction, a video chatting starting instruction, a video chatting ending instruction, a video recording starting instruction, a video recording ending instruction and the like.

M102: the mobile terminal supplies power to the motor.

The mobile terminal supplies power to the motor 35, so that the motor 35 rotates the link mechanism 36. The mobile terminal may always energize the motor 35 with current in one direction, and correspondingly, the motor 35 operates in one direction. The mobile terminal can also supply forward or reverse current to the motor 35 according to the control instruction, when the control instruction is an instruction for calling the camera to work, the mobile terminal supplies the forward current to the motor 35, and when the control instruction is an instruction for finishing the camera to work, the mobile terminal supplies the reverse current to the motor 35. The forward current means that the motor 35 rotates the link mechanism 36 forward so that the link mechanism 36 can give the support device 32a force away from the motor 35. The reverse current means that the motor 35 can rotate the link mechanism 36 in the reverse direction, so that the supporting device 32 can fall back into the mobile terminal. In addition, the motor 35 can determine the rotation speed according to the magnitude of the current, so that the linkage 36 drives the support device 32 to move at different speeds.

M103: the motor drives the link mechanism to rotate, so that the link mechanism exerts force for the support device to slide on the support device in the sliding direction of the support device.

The motor 35 drives the link mechanism 36 to move correspondingly, and the link mechanism 36 abuts against the support device 32 to apply force to the support device 32. When the link mechanism 36 rotates close to the supporting device 32, the link mechanism 36 can make the supporting device 32 away from the motor 35, so that the supporting device 32 drives the camera module 34 to extend out of the interior of the mobile terminal. When the link mechanism 36 rotates away from the supporting device 32, the supporting device 32 can fall back to the inside of the mobile terminal, and the supporting device 32 drives the camera module 34 to retract back to the inside of the mobile terminal.

M104: the guide device guides the support device to slide.

The supporting device 32 slides stably under the guiding action of the guiding device 33, so that the shaking of the camera module 34 is reduced, and the service life of the camera module 34 is prolonged.

In this embodiment, the camera module 34 is disposed on the supporting device 32, the supporting device 32 is connected to the guiding device 33, the guiding device 33 is connected to the fixing frame 31, the supporting device 32 is slidably connected to the fixing frame 31 through the guiding device 33, the link mechanism 36 abuts against the supporting device 32, an output end of the motor 35 is connected to the link mechanism 36, the motor 35 drives the link mechanism 36 to rotate, so that the link mechanism 36 exerts a force on the supporting device 32 in a sliding direction of the supporting device 32 to slide the supporting device 32, thereby driving the supporting device 32 to slide under the guidance of the guiding device 33, and further the supporting device 32 drives the camera module 34 to move, so as to achieve the purpose of freely extending and retracting the camera module 34.

Referring to fig. 9, fig. 9 is a schematic structural diagram of a camera head assembly 30a according to another embodiment of the present application.

The camera head assembly 30a of the present embodiment is different from the camera head assembly 30 of the previous embodiment in that the guide 33a includes a gear 332a, the gear 332a is hinged to the fitting portion 323a of the bracket 321a, the fixed frame 31a is provided with a rack slot 315a corresponding to the gear 332a, and the gear 332a rolls along the rack slot 315a to increase stability of the bracket 321a in sliding. Because the gear 332a and the rack groove 315a are in surface contact, and the protrusion of the rack groove 315a is engaged with the groove of the tooth of the gear 332a and the adjacent tooth, the gear 332a can stably slide on the rack groove 315a and advance, and the engaging structure of the rack groove 315a and the gear 332a can effectively avoid the phenomenon that the bracket 321a continues to slide due to the inertial rotation of the motor 35a, thereby greatly improving the user experience.

Specifically, there are at least two gears 332a, the gears 332a are distributed at two opposite ends of the bracket 321a, the number of the gears 332a may be two, the number of the gears 332a may also be three, the number of the gears 332a may also be four, and the specific number of the gears 332a is not listed here. In this embodiment, the number of the gears 332a is two, and the stability of the sliding of the support 321a is further improved without occupying an excessive space.

The rack groove 315a may be formed in the main body base 312a of the fixing frame 31a, which is advantageous in that the opening direction of the rack groove 315a is the same as the opening and closing direction of the mold for manufacturing the fixing frame 31a, so that the normal demolding of the fixing frame 31a is not affected, thereby reducing the production cost of the mold for manufacturing the fixing frame 31 a.

The rack groove 315a may also be provided on the guide wall 316a of the fixed frame 31a, and the guide walls 316a are provided at opposite ends of the main body base 312a in the sliding direction of the vertical supporting means 32a, so that the rack groove 315a and the gear 332a can be provided in the width direction of the camera head assembly 30a, thereby reducing the thickness of the camera head assembly 30a, and further making the thickness of the mobile terminal smaller.

The rack groove 315a may be replaced with a rack having a rack groove 315a, and mounted on the guide wall 316a or the body base 312a of the fixed frame 31 a.

In this embodiment, the camera module 34a is disposed on the supporting device 32a, the supporting device 32a is hinged to the gear 332a, the gear 332a moves along the rack slot 315a of the fixing frame 31a, the link mechanism 36a abuts against the supporting device 32a, the output end of the motor 35a is connected to the link mechanism 36a, the motor 35a drives the link mechanism 36a to rotate, so that the link mechanism 36a applies a force for sliding the supporting device 32a to the supporting device 32a in the sliding direction of the supporting device 32a, the sliding of the supporting device 32a is driven under the guiding of the gear 332a and the rack slot 315a, and the supporting device 32a drives the camera module 34a to move, so as to achieve the purpose of freely extending and contracting the camera module 34 a.

Referring to fig. 9 and 10, fig. 10 is a flowchart illustrating a method for controlling a camera assembly 30a of a mobile terminal according to another embodiment of the present application. The camera assembly 30a includes a fixing frame 31a, a supporting device 32a, a gear 332a, a camera module 34a, a link mechanism 36a and a motor 35a, the fixing frame 31a is provided with a rack slot 315a, the gear 332a is used for rolling along the rack slot 315a, the supporting device 32a is hinged to the gear 332a, the supporting device 32a is connected with the fixing frame 31a in a sliding mode through the gear 332a, the camera module 34a is arranged on the supporting device 32a, the link mechanism 36a abuts against the supporting device 32a, and an output end of the motor 35a is connected with the link mechanism 36 a.

M201: and the mobile terminal receives the control instruction.

M202: the mobile terminal supplies power to the motor.

The mobile terminal supplies power to the motor 35a, so that the motor 35a rotates the link mechanism 36 a. The mobile terminal may always energize the motor 35a with current in one direction, and correspondingly, the motor 35a operates in one direction. The mobile terminal can also supply forward or reverse current to the motor 35a according to the control instruction, when the control instruction is an instruction for calling the camera to work, the mobile terminal supplies the forward current to the motor 35a, and when the control instruction is an instruction for finishing the camera to work, the mobile terminal supplies the reverse current to the motor 35 a. The forward current means that the motor 35a can rotate the link mechanism 36a in a forward direction, so that the link mechanism 36a can give a force to the supporting device 32a away from the motor 35 a. The reverse current means that the motor 35a can rotate the link mechanism 36a in the reverse direction, so that the supporting device 32a can fall back to the inside of the mobile terminal. In addition, the motor 35a can determine the speed of rotation according to the magnitude of the current, so that the linkage mechanism 36a drives the supporting device 32a to move at different speeds.

M203: the motor drives the link mechanism to rotate, so that the link mechanism exerts force for the support device to slide on the support device in the sliding direction of the support device.

The motor 35a drives the link mechanism 36a to move correspondingly, and the link mechanism 36a abuts against the support device 32a to exert force on the support device 32 a. When the link mechanism 36a rotates close to the supporting device 32a, the link mechanism 36a can make the supporting device 32a away from the motor 35a, and then the supporting device 32a drives the camera module 34a to extend out of the interior of the mobile terminal. When the link mechanism 36a rotates away from the supporting device 32a, the supporting device 32a can fall back to the inside of the mobile terminal, and the supporting device 32a drives the camera module 34a to retract back to the inside of the mobile terminal.

M204: the gear rolls along the rack slot to guide the support device to slide.

The support device 32a slides stably under the matching guidance of the gear 332a and the rack groove 315a, thereby reducing the shaking of the camera module 34a and improving the service life of the camera module 34 a.

Referring to fig. 11, fig. 11 is a schematic structural diagram of a camera head assembly 30b according to another embodiment of the present application.

The camera head assembly 30b of the present embodiment is different from the

camera head assemblies

30 and 30a of the above embodiments in that the guiding device 33b includes a slider 332b and a guide rail 315b, the slider 332b is disposed on the engaging portion 323b of the bracket 321b, the guide rail 315b is disposed on the fixing frame 31b to engage with the slider 332b, and the slider 332b slides along the guide rail 315b to increase the stability of the sliding of the bracket 321 b. Because the surface of the sliding block 332b in the sliding direction of the bracket 321b and the guide rail 315b are in contact and are in a clamping structure at the contact position of the sliding block 332b and the guide rail 315b, the guide rail 315b can well support the whole sliding block 332b, so that the sliding block 332b can stably slide on the guide rail 315b and move forward, and the supporting device 32b can stably slide under the guiding action of the matching of the sliding block 332b and the guide rail 315b, thereby reducing the shaking of the camera module 34b and improving the service life and the shooting quality of the camera module 34 b.

Specifically, the number of the sliding blocks 332b is at least two, the sliding blocks 332b are distributed at two opposite ends of the bracket 321b, the number of the sliding blocks 332b may be two, the number of the sliding blocks 332b may also be three, the number of the sliding blocks 332b may also be four, and the specific number of the sliding blocks 332b is not listed here. In this embodiment, the number of the sliding blocks 332b is two, so that the stability of the sliding of the support 321b is further improved without occupying too much space.

The guide rail 315b may be disposed on the main body base 312b of the fixing frame 31b and is integrally formed with the fixing frame 31b, which is advantageous in that the opening direction of the guide rail 315b is the same as the opening and closing direction of the mold for manufacturing the fixing frame 31b, so that the normal mold stripping of the fixing frame 31b is not affected, and the production cost of the mold for manufacturing the fixing frame 31b is reduced.

The guide rail 315b may also be disposed on the guide wall 316b of the fixing frame 31b and be integrally formed with the fixing frame 31b, and the guide wall 316b is disposed at two opposite ends of the main body base 312b in the sliding direction of the vertical supporting device 32b, so that the slider 332b and the guide rail 315b may be disposed in the width direction of the camera head assembly 30b, thereby reducing the thickness of the camera head assembly 30b and further making the thickness of the mobile terminal smaller.

The guide rail 315b may be mounted as a separate part to the guide wall 316b or the main body base 312b of the fixing frame 31 b.

In this embodiment, the camera module 34b is disposed on the supporting device 32b, the bracket 321b is connected to the slider 332b, the slider 332b moves along the guide rail 315b disposed on the fixing frame 31b, the link mechanism 36b abuts against the bracket 321b, the output end of the motor 35b is connected to the link mechanism 36b, the motor 35b drives the link mechanism 36b to rotate, so that the link mechanism 36b applies a force for the bracket 321b to slide to the bracket 321b in the sliding direction of the bracket 321b, the bracket 321b is driven to slide under the guiding of the slider 332b and the guide rail 315b, and the bracket 321b drives the camera module 34b to move, so as to achieve the purpose of freely extending and retracting the camera module 34 b.

Referring to fig. 12, fig. 12 is a flowchart illustrating a method for controlling a camera assembly 30b of a mobile terminal according to another embodiment of the present application. The camera assembly 30b includes a fixing frame 31b, a supporting device 32b, a slider 332b, a guide rail 315b, a camera module 34b, a link mechanism 36b and a motor 35b, the guide rail 315b is disposed on the fixing frame, the slider 332b is used for sliding along the guide rail 315b, the supporting device 32b is connected with the slider 332b, the camera module 34b is disposed on the supporting device 32b, the link mechanism 36b abuts against the supporting device 32b, and an output end of the motor 35b is connected with the link mechanism 36 b.

M301: and the mobile terminal receives the control instruction.

M302: the mobile terminal supplies power to the motor.

The mobile terminal supplies power to the motor 35b, so that the motor 35b rotates the link mechanism 36 b. The mobile terminal may always energize the motor 35b with current in one direction, and correspondingly, the motor 35b operates in one direction. The mobile terminal can also give the motor 35b forward or reverse current according to the control instruction, when the control instruction is an instruction that the camera needs to be called to work, the mobile terminal supplies the forward current to the motor 35b, and when the control instruction is an instruction that the camera finishes to work, the mobile terminal supplies the reverse current to the motor 35 b. The forward current means that the motor 35b can rotate the link mechanism 36b forward, so that the link mechanism 36b can give the supporting device 32b a force away from the motor 35 b. The reverse current means that the motor 35b can rotate the link mechanism 36b in the reverse direction, so that the supporting device 32b can fall back into the mobile terminal. In addition, the motor 35b can determine the rotation speed according to the magnitude of the current, so that the linkage 36b drives the support device 32b to move at different speeds.

M303: the motor drives the link mechanism to rotate, so that the link mechanism exerts force for the support device to slide on the support device in the sliding direction of the support device.

The motor 35b drives the link mechanism 36b to move correspondingly, and the link mechanism 36b abuts against the support device 32b to exert a force on the support device 32 b. When the link mechanism 36b rotates close to the supporting device 32b, the link mechanism 36b can make the supporting device 32b away from the motor 35b, and the supporting device 32b drives the camera module 34b to extend out of the interior of the mobile terminal. When the link mechanism 36b rotates away from the supporting device 32b, the supporting device 32b can fall back to the inside of the mobile terminal, and the supporting device 32b drives the camera module 34b to retract back to the inside of the mobile terminal.

M304: the sliding block slides along the guide rail to guide the supporting device to slide.

The supporting device 32b stably slides under the matching guidance of the sliding block 332b and the guide rail 315b, so that the shaking of the camera module 34b is reduced, and the service life of the camera module 34b is prolonged.

Referring to fig. 13, fig. 13 is a schematic structural diagram of a camera head assembly 30c according to yet another embodiment of the present application.

The difference between the camera head assembly 30c of the present embodiment and the

camera head assemblies

30, 30a and 30b of the previous embodiments is that the guiding device 33c includes a guiding rod 332c, the guiding rod 332c passes through the matching portion 323c of the bracket 321c to be connected with the fixing frame 31c, the bracket 321c is slidably connected with the fixing frame 31c through the guiding rod 332c, and the bracket 321c slides along the guiding rod 332c to increase the stability of the bracket 321c in sliding. Because the surface of the support 321c is always in contact with the guide rod 332c at the contact position of the support 321c and the guide rod 332c, the guide rod 332c can provide good support for the whole support 321c, so that the support 321c can stably slide under the matching guide action of the guide rod 332c, the shaking of the camera module 34c is reduced, and the service life and the shooting quality of the camera module 34c are improved.

Specifically, the number of the guide rods 332c is at least two, the guide rods 332c are distributed at two opposite ends of the bracket 321c, the number of the guide rods 332c may be two, the number of the guide rods 332c may also be three, the number of the guide rods 332c may also be four, and the specific number of the guide rods 332c is not listed here. In this embodiment, the number of the guide rods 332c is two, so that the sliding stability of the support 321c is further improved without occupying too much space. In addition, the cross section of the guide rod 332c may be circular, the circular guide rod 332c may reduce the friction force between the bracket 321c and the guide rod 332c, the guide rod 332c may also be square, and the square guide rod 332c may limit the bracket 321 c.

The guiding device 33c further includes a blocking member 315c, two ends of the guide rod 332c penetrate through the fixing frame 31c, and the blocking member 315c is engaged with the ends of the guide rod 332c to prevent the guide rod 332c from being separated from the fixing frame 31 c. Stop 315c may be a nut that threadably engages the end of guide rod 332 c; the stop 315c may also be glue, which solidifies to more securely fix the guide rod 332c to the stop wall 110; the blocking member 315c may also be a stopper rod, the blocking member 315c is disposed through an end of the guide rod 332c, and further, the blocking member 315c is in a long cylindrical shape, and two ends of the blocking member 315c are bent to prevent the blocking member 315c from falling off from the end of the guide rod 332 c.

Referring to fig. 14, fig. 14 is a flowchart illustrating a method for controlling a camera assembly 30c of a mobile terminal according to still another embodiment of the present application. The camera assembly 30c includes a fixing frame 31c, a supporting device 32c, a guide rod 332c, a camera module 34c, a link mechanism 36c and a motor 35c, the guide rod 332c penetrates through the supporting device 32c to be connected with the fixing frame 31c, the supporting device 32c is in sliding connection with the fixing frame 31c through the guide rod 332c, the camera module 34c is arranged on the supporting device 32c, the link mechanism 36c abuts against the supporting device 32c, and an output end of the motor 35c is connected with the link mechanism 36 c.

M401: and the mobile terminal receives the control instruction.

M402: the mobile terminal supplies power to the motor.

The mobile terminal supplies power to the motor 35c, so that the motor 35c rotates the link mechanism 36 c. The mobile terminal may always energize the motor 35c with current in one direction, and correspondingly, the motor 35c operates in one direction. The mobile terminal can also supply forward or reverse current to the motor 35c according to the control instruction, when the control instruction is an instruction for calling the camera to work, the mobile terminal supplies the forward current to the motor 35c, and when the control instruction is an instruction for finishing the camera to work, the mobile terminal supplies the reverse current to the motor 35 c. The forward current means that the motor 35c rotates the link mechanism 36c in a forward direction so that the link mechanism 36c can give the supporting device 32c a force away from the motor 35 c. The reverse current means that the motor 35c can rotate the link mechanism 36c in the reverse direction, so that the supporting device 32c can fall back into the mobile terminal. In addition, the motor 35c can determine the rotation speed according to the magnitude of the current, so that the linkage 36c drives the supporting device 32c to move at different speeds.

M403: the motor drives the link mechanism to rotate, so that the link mechanism exerts force for the support device to slide on the support device in the sliding direction of the support device.

The motor 35c drives the link mechanism 36c to move correspondingly, and the link mechanism 36c abuts against the support device 32c to exert a force on the support device 32 c. When the link mechanism 36c rotates close to the supporting device 32c, the link mechanism 36c can make the supporting device 32c away from the motor 35c, and the supporting device 32c drives the camera module 34c to extend out of the interior of the mobile terminal. When the link mechanism 36c rotates away from the supporting device 32c, the supporting device 32c can fall back to the inside of the mobile terminal, and the supporting device 32c drives the camera module 34c to retract back to the inside of the mobile terminal.

M404: the guide rod guides the support device to slide.

The supporting device 32c slides stably under the guidance of the guide rod 332c, so that the shaking of the camera module 34c is reduced, and the service life of the camera module 34c is prolonged.

The above description is only for the purpose of illustrating embodiments of the present invention and is not intended to limit the scope of the present invention, and all modifications, equivalents, and equivalent structures or equivalent processes that can be used directly or indirectly in other related fields of technology shall be encompassed by the present invention.

Claims

1. A camera head assembly, comprising:

a fixed frame provided with a guide groove;

the guide device comprises a roller capable of rolling along the guide groove;

the supporting device comprises a bracket and a retaining piece, the bracket is hinged with the roller, the supporting device is connected with the fixed frame in a sliding mode through the roller, the retaining piece is connected with the bracket and the fixed frame, and the retaining piece is used for keeping the bracket abutted against the connecting rod mechanism;

the camera module is arranged on the supporting device;

the connecting rod mechanism comprises a first connecting rod, a second connecting rod and a third connecting rod, two opposite ends of the second connecting rod are respectively hinged with the end parts of the first connecting rod and the third connecting rod, the different end of the third connecting rod, which is connected with the second connecting rod, is hinged with the fixed frame, and the second connecting rod is abutted against the bracket; and

the output end of the motor is connected with the different end of the first connecting rod connected with the second connecting rod, the motor is used for driving the first connecting rod to rotate, so that the second connecting rod exerts force for the support device to slide on the support device in the sliding direction of the support device, and the support device slides downwards under the guide of the guide device.

2. A camera head assembly according to claim 1,

the camera fixing frame comprises a fixing frame and a fixing frame, wherein the fixing frame is provided with a main body base, the fixing frame is provided with a limiting groove, a through hole is formed in the bottom wall of the limiting groove, the camera module is contained in the limiting groove, the axis of the camera module is overlapped with the axis of the through hole, the fixing frame comprises a main body base, and the axis of the through hole is perpendicular to the main body base.

3. A camera assembly according to claim 2,

the support includes main part and with the cooperation portion that the main part is connected, spacing recess is seted up on the main part, the gyro wheel with cooperation portion is articulated.

4. A camera assembly according to claim 2,

the fixing frame further comprises guide walls, the guide walls are arranged at two opposite ends of the base of the main body in the sliding direction perpendicular to the supporting device, and the guide grooves are formed in the guide walls.

5. A camera assembly according to claim 2,

the main body base of the fixing frame is provided with a limiting blocking wall in the sliding direction of the supporting device, the limiting blocking wall is used for limiting the sliding position of the support, and a first opening for the support to slide and extend out is formed in the limiting blocking wall.

6. A camera head assembly according to claim 5,

in the axial direction of the camera module, a second opening is formed in the main body base of the fixing frame at a sliding position corresponding to the support, the first opening and the second opening are of a communicating structure, and the support protrudes out of the second opening so as to reduce the thickness of the camera assembly in the axial direction of the camera module.

7. A camera assembly according to claim 2,

a lens groove is formed in one side, away from the camera module, of the bottom wall of the limiting groove;

the camera assembly further comprises a lens, and the lens is accommodated in the lens groove to prevent external impurities from entering the limiting groove.

8. A camera head assembly according to claim 7,

the lens is completely accommodated in the lens groove, so that the bracket blocks the impact of the outside on the lens.

9. A mobile terminal, comprising:

the display screen assembly is fixed on the shell assembly, the camera assembly is arranged in the shell assembly, and at least part of area of the camera assembly is overlapped with a display area of the display screen assembly in a non-extending state;

the camera assembly comprises a fixing frame, a supporting device, a guiding device, a camera module, a connecting rod mechanism and a motor, the camera module is arranged on the supporting device, the fixing frame is provided with a guide groove, the guiding device comprises a roller capable of rolling along the guide groove, the supporting device comprises a support and a retaining piece, the support is hinged with the roller, the supporting device is connected with the fixing frame in a sliding mode through the roller, the retaining piece is connected with the support and the fixing frame, the retaining piece is used for keeping the support in butt joint with the connecting rod mechanism, the connecting rod mechanism comprises a first connecting rod, a second connecting rod and a third connecting rod, two opposite ends of the second connecting rod are respectively hinged with the end portions of the first connecting rod and the third connecting rod, and the different end of the third connecting rod, which is connected with the second connecting rod, is hinged with the fixing frame, the second connecting rod is abutted against the bracket; the output end of the motor is connected with the different end of the first connecting rod connected with the second connecting rod, the motor is used for driving the first connecting rod to rotate so that the second connecting rod exerts sliding force on the supporting device, and the supporting device slides downwards under the guide of the guide device so as to drive the camera module to stretch out of the shell assembly.

10. The mobile terminal of claim 9,

the shell assembly comprises a shell and a dust guard, the display screen assembly is fixed on the shell, the camera assembly is arranged in the shell and can extend out of the shell from the end part of the shell, an opening is formed in the shell at the position corresponding to the end part of the camera assembly sliding out of the shell, the dust guard is accommodated in the opening and seals the opening, and the dust guard is elastically hinged with the shell;

when the camera assembly is in a non-extension state, the dust guard is automatically rebounded and accommodated in the opening.

11. The mobile terminal of claim 9,

the support includes the main part and with the cooperation portion that the main part is connected, the support is provided with spacing recess, spacing recess is seted up on the main part, the gyro wheel with the cooperation portion is articulated.

12. A mobile terminal, comprising: a camera assembly according to any one of claims 1 to 8.

13. A method for controlling a camera assembly of a mobile terminal,

the camera assembly comprises a fixing frame, a supporting device, a guiding device, a camera module, a connecting rod mechanism and a motor, the camera module is arranged on the supporting device, the fixing frame is provided with a guide groove, the guiding device comprises a roller capable of rolling along the guide groove, the supporting device comprises a support and a retaining piece, the support is hinged with the roller, the supporting device is connected with the fixing frame in a sliding mode through the roller, the retaining piece is connected with the support and the fixing frame, the retaining piece is used for keeping the support in butt joint with the connecting rod mechanism, the connecting rod mechanism comprises a first connecting rod, a second connecting rod and a third connecting rod, two opposite ends of the second connecting rod are respectively hinged with the end portions of the first connecting rod and the third connecting rod, and the different end of the third connecting rod, which is connected with the second connecting rod, is hinged with the fixing frame, the second connecting rod is abutted against the bracket; the output end of the motor is connected with the different end of the first connecting rod connected with the second connecting rod, the motor is used for driving the first connecting rod to rotate so as to enable the second connecting rod to apply sliding force to the supporting device, the camera module is arranged on the supporting device, the connecting rod mechanism is abutted against the supporting device, and the output end of the motor is connected with the connecting rod mechanism;

the control method comprises the following steps: the mobile terminal receives a control instruction;

the mobile terminal supplies power to the motor;

the motor drives the link mechanism to rotate so that the link mechanism applies force for the support device to slide on the support device in the sliding direction of the support device;

the guide device guides the support device to slide.