Drive device and mobile terminal

Abstract

The present disclosure relates to a driving device and a mobile terminal, wherein the driving device includes a driving member and a transmission mechanism cooperating with the driving member, the transmission mechanism includes a connecting member connected to a guide rail and a functional component respectively, the connecting member includes a connecting portion threadedly connected to a lead screw, and a reset member acting on the connecting portion; wherein, in an initial state, the reset member abuts against the connecting portion so that the connecting portion is adapted to the lead screw, thereby driving the functional component to protrude out of the terminal body or be accommodated in the terminal body; when the connecting member is acted upon by an external force and the radial component of the external force in the axial direction of the lead screw is greater than the abutting force of the reset member, the connecting portion is separated from the lead screw. The present disclosure designs a drop-proof impact design through structural improvements, and when the functional component is impacted, a self-protection mechanism is realized by the cooperation between the reset member and the connecting portion, thereby realizing protection of the functional component.

Description

Technical Field

[0001] The present disclosure relates to the technical field of communication equipment, and in particular to a driving device and a mobile terminal. Background Art

[0002] Nowadays, many electronic devices, such as mobile communication terminals (such as mobile phones), PDAs (Personal Digital Assistants), mobile computers, tablet computers and other devices, in order to achieve a high screen-to-body ratio of the display screen, adjust the front camera for selfie or video calling functions from the TP panel (Touch Panel) to pop up from the side of the electronic device for use. When the front camera is not needed, the front camera can be retracted into the electronic device.

[0003] Then, since the front camera protrudes out of the shell of the electronic device when in use and lacks the overall protection of the shell, the protruding front camera is very fragile and cannot withstand the impact of the entire device falling. The pop-up front camera is easily damaged and may even cause components in the electronic device to be damaged by the impact of the front camera. Summary of the invention

[0004] In view of this, the present disclosure designs a driving device and an electronic device that can alleviate impact force to protect functional components to solve the above technical problems.

[0005] In order to achieve the above objectives, the technical solution adopted by the present disclosure is:

[0006] According to a first aspect of an embodiment of the present disclosure, there is provided a driving device, which is assembled in a terminal body of a mobile terminal, the driving device comprising a driving member and a transmission mechanism matched with the driving member, the transmission mechanism comprising a base, a lead screw and a guide rail arranged side by side on the base, a transmission assembly connected to the driving member and the lead screw, and a connecting assembly respectively connected to the guide rail and a functional assembly of the terminal body, the connecting assembly comprising a connecting portion threadedly connected to the lead screw, and a reset member acting on the connecting portion;

[0007] Among them, in the initial state, the reset member abuts against the connecting part so that the connecting part is adapted to the screw, thereby driving the functional component to protrude from the terminal body or be accommodated in the terminal body; when the connecting component is subjected to external force and the radial component of the external force in the axial direction of the screw is greater than the abutting force of the reset member, the connecting part is detached from the screw.

[0008] Optionally, the connecting assembly also includes a sliding seat and a connecting arm extending from the sliding seat; wherein, the sliding seat is connected to the guide rail and slides along the guide rail, the connecting portion is arranged in the sliding seat, the reset member is engaged between the sliding seat and the connecting portion, and the connecting arm is connected to the functional assembly so that the functional assembly moves with the movement of the sliding seat.

[0009] Optionally, the connecting portion includes a connecting ring and an open nut connected to the connecting ring, the connecting ring is sleeved on a guide rail, the open nut is adapted to the lead screw, and drives the sliding seat to slide under the rotation of the lead screw.

[0010] Optionally, there are two connecting parts, the two open nuts are arranged opposite to each other, and each open nut is equipped with a reset member.

[0011] Optionally, the reset member is a torsion spring, which is sleeved on a connecting ring, with one torsion arm of the torsion spring abutting against the open nut, and the other torsion arm of the torsion spring abutting against the sliding seat.

[0012] Optionally, the reset member is a spring sheet, one end of which is fixed to the sliding seat, and the other end of which is abutted against the open nut.

[0013] Optionally, the transmission assembly is a gear combination or a combination of a transmission belt and a transmission wheel.

[0014] According to a second aspect of an embodiment of the present disclosure, there is provided a mobile terminal, comprising: a terminal body, a functional component, and a driving device as described in any one of the above, wherein the driving device comprises a driving member and a transmission mechanism matched with the driving member, the transmission mechanism comprises a base, a lead screw and a guide rail arranged side by side on the base, a transmission component connected to the driving member and the lead screw, and a connecting component respectively connected to the guide rail and the functional component in the terminal body, the connecting component comprising a connecting portion threadedly connected to the lead screw, and a reset member acting on the connecting portion;

[0015] Among them, in the initial state, the reset member abuts against the connecting part so that the connecting part is adapted to the screw, thereby driving the functional component to protrude from the terminal body or be accommodated in the terminal body; when the connecting component is subjected to external force and the radial component of the external force in the axial direction of the screw is greater than the abutting force of the reset member, the connecting part is detached from the screw.

[0016] Optionally, the functional component includes a camera module, which includes a module body, at least one camera arranged on the module body, and a flexible circuit board extending from the module body; wherein the flexible circuit board is electrically connected to a control circuit board in the terminal body so that the camera is communicatively connected to the control circuit board.

[0017] Optionally, the control circuit board also includes a processor, and the driving member is communicatively connected to the processor; wherein the processor controls the rotation of the driving member according to a received control signal, thereby driving the functional component to protrude from the terminal body or be accommodated in the terminal body.

[0018] Optionally, the terminal body includes a middle frame shell, the top of the middle frame shell is provided with a receiving groove adapted to the camera module, and the camera module is movably received in the receiving groove; wherein, when the camera module is received in the receiving groove, the upper surface of the camera module is flush with the top surface of the middle frame shell.

[0019] Optionally, the mobile terminal further comprises a display module mounted on the terminal body from the front side of the terminal body; wherein the display module comprises a full screen.

[0020] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: the present disclosure uses a driving device to movably set the functional component in the terminal body. When the functional component is not needed, the driving device completely accommodates the functional component in the terminal body, and the camera can be hidden in the terminal body. When the functional component is needed, the driving device moves the functional component out of the terminal body for user use. The present disclosure designs a driving device with a drop-proof and impact-proof design through structural improvements. When the functional component is hit, a self-protection mechanism is realized by the cooperation of the reset member and the connecting part, thereby realizing the protection of the functional component.

[0021] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of a structure in which functional components are hidden in a mobile terminal according to an exemplary embodiment of the present disclosure;

[0023] Figure 2 is a schematic structural diagram showing a functional component protruding from a mobile terminal according to an exemplary embodiment of the present disclosure;

[0024] Figure 3 is a schematic diagram of a partial structure of a terminal body in a mobile terminal shown in an exemplary embodiment of the present disclosure;

[0025] Figure 4 is a three-dimensional diagram of a connection component in a mobile terminal shown in an exemplary embodiment of the present disclosure;

[0026] Figure 5 is a schematic diagram showing a state in which a connection component in a mobile terminal drives a functional component to be retracted, according to an exemplary embodiment of the present disclosure;

[0027] Figure 6 is a schematic diagram showing a state in which a connection component in a mobile terminal drives a functional component to protrude, according to an exemplary embodiment of the present disclosure;

[0028] Figure 7 It is a force analysis diagram between a connecting part and a lead screw in a connecting assembly shown in an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0029] The present disclosure will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present disclosure, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present disclosure.

[0030] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0031] Some embodiments of the present disclosure are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0032] like Figures 1 to 3 As shown, the driving device 30 of the embodiment of the present disclosure is assembled in the terminal body 1 of the mobile terminal 100, and is used to control the functional component 20 in the terminal body 1 to protrude from the side of the terminal body 1 or be accommodated in the terminal body 1. The driving device 30 includes a driving member 31 and a transmission mechanism 32 matched with the driving member 31. The functional component 20 in the terminal body 1 is connected to the transmission mechanism 32. The driving member 31 can drive the functional component 20 to move in the terminal body 1 through the transmission mechanism 32, so that the functional component 20 is accommodated in the terminal body 1 or the functional component 20 protrudes from the terminal body 1 for use by the user.

[0033] That is to say, the functional component 20 of the present invention can be controlled to move in the terminal body 1. When the functional component 20 is not needed, the functional component 20 is controlled by the driving device 30 to be accommodated in the terminal body 1. At this time, the functional component 20 is hidden in the terminal body 1. When the functional component 20 is needed, the functional component 20 is controlled by the driving device 30 to protrude out of the terminal body 1 for user use. The functional component 20 of the present invention is a front camera module, which changes the camera 21 traditionally set on the front of the display screen to be controllably moved in and out from the side of the terminal body 1, which can meet the demand for a high screen-to-body ratio, thereby further realizing a full-screen design.

[0034] like Figures 3 to 7 As shown, the transmission mechanism 32 of the present disclosure includes a base 324, a lead screw 321 and a guide rail 322 arranged side by side on the base 324, a transmission assembly 323 connected to the driving member 31 and the lead screw 321, and a connecting assembly 33 respectively connected to the guide rail 322 and the functional component 20. The base 324 is a U-shaped base, the lead screw 321 can be rotatably connected to two opposite side walls of the base 324, and the guide rail 322 is fixed to the two opposite side walls.

[0035] The connection assembly 33 includes a connection portion 333 threadedly connected to the lead screw 321, and a reset member 334 acting on the connection portion 333. In the initial state, the reset member 334 abuts against the connection portion 333, so that the connection portion 333 is adapted to the lead screw 321, that is, the thread on the connection portion 333 is matched with the thread on the lead screw 321, so that the driving member 31 drives the lead screw 321 to rotate and drives the functional component 20 to protrude out of the terminal body 1 or be accommodated in the terminal body 1. In this embodiment, the driving member 31 is a stepping motor.

[0036] In one embodiment, the transmission assembly 323 is a combination of gears or a combination of a transmission belt and a transmission wheel. In this embodiment, a gear combination is selected between the driving member 31 and the lead screw 321. In order to protect the gear combination, a gear box is also provided between the driving member 31 and the lead screw 321. The driving force of the driving member 31 is transmitted to the lead screw 321 through the cooperation between multiple gears, so that the lead screw 321 rotates.

[0037] In the motion system of the functional component 20 disclosed in the present invention, the motion direction of the connection component is driven by a stepper motor, for example: when the stepper motor rotates forward, the connection component 33 moves forward, and the functional component 20 moves out of the terminal body 1; when the stepper motor rotates reversely, the connection component 33 moves backward, and the functional component 20 is retracted into the terminal body 1. Under normal circumstances, when the stepper motor is powered on, the system has a certain self-locking ability, and the external force pushes the extended functional component 20 in reverse, which cannot easily reverse the stepper motor. In actual use, when the functional component 20 is suddenly impacted by an external force, the motion system does not have time to change the motion direction of the stepper motor to relieve the impact force. If the self-locking system cannot be disengaged in time, it will cause a huge impact on the transmission mechanism 32, which may cause damage to some transmission components.

[0038] Therefore, the present disclosure is configured such that when the connecting component 33 is acted upon by an external force and the radial component of the external force in the axial direction of the lead screw 321 is greater than the resisting force of the reset member 334, the connecting portion 333 is separated from the lead screw 321. The radial component is the reaction force of the lead screw 321 on the connecting component 33, and the direction of the radial component is opposite to the direction of the resisting force of the reset member 334. At this time, the connecting component 33 is no longer restricted by the lead screw 321, so that the functional component 20 and the connecting component 33 can slide freely, so that when the functional component 20 is hit, the connecting component 33 can be loosened from the lead screw 321, so that the connecting component 33 and the functional component 20 can be freely buffered, thereby playing a role in protecting the functional component 20.

[0039] The connection assembly 33 of the disclosed embodiment further includes a sliding seat 331 and a connection arm 332 extending from the sliding seat 331. The sliding seat 331 is connected to the guide rail 322 and slides along the guide rail 322, the connection portion 333 is disposed in the sliding seat 331, the reset member 334 is fitted between the sliding seat 331 and the connection portion 333, and the connection arm 332 is connected to the functional assembly 20 so that the functional assembly 20 moves with the movement of the sliding seat 331. The connection arm 332 is connected to an end face of the notch of the functional assembly 20 away from the receiving groove 12, and the connection arm 332 extends relative to the sliding seat 331 toward the top end close to the middle frame shell 11, so that the connection arm 334 can ensure that the functional assembly 20 is pushed out of the receiving groove 12 as a whole.

[0040] In an optional embodiment, the connecting portion 333 includes a connecting ring 3331 and an open nut 3332 connected to the connecting ring 3331, and the connecting ring 3331 and the open nut 3332 are integrally formed. The open nut 3332 can be matched with the lead screw 321 or away from the lead screw 321 under the action of external force, and the open nut 3332 is preferably an open half nut. The connecting ring 3331 is sleeved on the guide rail 322, and the open nut 3332 is adapted to the lead screw 321, and drives the sliding seat 331 to slide under the rotation of the lead screw 321.

[0041] In another optional embodiment, the connection part 333 is two, and the two open nuts 3332 are arranged opposite to each other, and the two open nuts 3332 are preferably open half nuts. Each open nut 3332 is equipped with a reset member 334. When the functional component 20 is subjected to an impact force, the two open nuts 3332 are respectively separated from the lead screw 321, so that the connection component 33 and the functional component 20 can slide freely along the guide rail 322 to relieve the impact force.

[0042] In the disclosed embodiment, the reset member 334 is a torsion spring, which is sleeved on the connecting ring 3331, one torsion arm of the torsion spring abuts against the open nut 3332, and the other torsion arm of the torsion spring abuts against the sliding seat 331. When the connecting portion 333 is not subjected to an external force, the connecting portion 333 makes the open nut 3332 fit on the lead screw 321 under the torque force of the torsion spring. In another embodiment, the reset member 334 can also be a spring sheet, one end of which is fixed to the sliding seat 331, and the other end of which abuts against the open nut 3332. In the initial state (i.e., the connecting portion 333 is not subjected to an external force), the spring sheet abuts against the open nut 3332, so that the open nut 3332 fits on the lead screw 321.

[0043] The reset member 334 uses a torsion spring as an example to specifically explain the implementation principle of the present disclosure. In the initial state, the torque force F of the torsion spring is greater than the radial force F1 of the lead screw 321 on the open nut 3332. At this time, the open nut 3332 is in threaded engagement with the lead screw 321, and the lead screw 321 can drive the connection part 333 to slide along the axial direction of the lead screw 321, that is, drive the sliding seat 331 to slide along the axial direction of the lead screw 321. When the functional component 20 is subjected to external force, the radial force F1 will increase. When the radial force F1 is greater than F, the open nut 332 will be pushed open and separated from the lead screw 321, so that the sliding seat 331 can slide freely, thereby protecting the motion system of the functional component 20.

[0044] The present disclosure uses a driving device to movably set the functional component in the terminal body. When the functional component is not needed, the driving device completely accommodates the functional component in the terminal body, and the camera can be hidden in the terminal body. When the functional component is needed, the driving device moves the functional component out of the terminal body for user use. The present disclosure designs a driving device with a drop-proof impact-proof design. When the functional component is hit, the self-protection mechanism is realized by the cooperation of the reset member and the connecting part, thereby realizing the protection of the functional component.

[0045] like Figures 1 to 7 As shown, the mobile terminal 100 of the embodiment of the present disclosure includes a terminal body 1, a functional component 20, and a driving device 30 as described in the above-mentioned embodiments. The driving device 30 includes a driving member 31 and a transmission mechanism 32 matched with the driving member 31, the transmission mechanism 32 includes a base 324, a lead screw 321 and a guide rail 322 arranged side by side on the base 324, a transmission assembly 323 connected to the driving member 31 and the lead screw 321, and a connecting assembly 33 respectively connected to the guide rail 322 and the functional component 20, the connecting assembly 33 includes a connecting portion 333 threadedly connected with the lead screw 321, and a reset member 334 acting on the connecting portion 333. In the initial state, the reset member 334 abuts against the connection portion 333, so that the connection portion 333 is adapted to the lead screw 321, that is, the thread on the connection portion 333 is matched with the thread on the lead screw 321, so that the drive member 31 drives the lead screw 321 to rotate and drives the functional component 20 to protrude out of the terminal body 1 or be accommodated in the terminal body 1. When the connection component 33 is acted upon by an external force and the radial component of the external force in the axial direction of the lead screw 321 is greater than the abutment of the reset member 334, the connection portion 333 is separated from the lead screw 321.

[0046] The functional component 20 disclosed in the present invention includes a camera module, which includes a module body 22, at least one camera 21 arranged on the module body 22, and a flexible circuit board 23 extending from the module body 22. In this embodiment, two cameras 21 are provided on the module body 22 to enhance the shooting effect. In addition, the module body 22 may also be provided with a sensor and / or a photosensitive element. The flexible circuit board 23 is electrically connected to the control circuit board 13 in the middle frame housing 11 so that the camera 21 is communicatively connected to the control circuit board 13. Among them, the flexible circuit board 23 has a certain active length to meet the movement of the functional component 20.

[0047] In another embodiment, the functional component 20 may further include a card tray mechanism, which is used to assemble a SIM card (Subscriber Identification Module) or a memory card, etc., and the drive device 30 of the present disclosure cooperates with the card tray of the card tray mechanism, so that the card tray can be intelligently controlled to pop out from the side of the terminal body or automatically retract. The specific structural features of the drive device 30 are shown in the above embodiments, and will not be repeated here.

[0048] Among them, the functional component 20 in this disclosure specification and diagrams is specifically introduced by taking the camera module as an example. The camera module is popped out from the side of the terminal body 1 and hidden in the terminal body 1 when not in operation. It will not affect the appearance of the mobile terminal 100, completely avoids and does not occupy the space of the display screen in the display module, thereby achieving a full-screen display effect.

[0049] The mobile terminal 100 also includes a display module 10 mounted on the terminal body 1 from the front of the terminal body 1, and the display module 10 generally includes a backlight module, a display panel and a touch panel. Preferably, the display module 10 includes a full screen, that is, the display module 10 is set as a full screen. In this embodiment, the camera 21, sensors (one or more of various types of sensors, such as infrared sensors, light sensors, distance sensors, etc.), and photosensitive elements and other functional modules arranged on the front of the display screen are no longer arranged on the display module 10, so that the display module 10 can make the display screen have a high screen-to-body ratio or be a full screen. Among them, functional modules such as sensors and photosensitive elements can be arranged on the frame of the terminal body 1.

[0050] The terminal body 1 includes a middle frame housing 11, and a receiving groove 12 adapted to the functional component 20 is provided at the top of the middle frame housing 11. The functional component 20 is movably received in the receiving groove 12, and the position of the receiving groove 12 can correspond to any position of the top edge of the middle frame housing 11. Of course, the receiving groove 12 is not limited to being set at the top of the middle frame housing 11, and can also be set at another side edge close to the middle frame housing 11, that is, the functional component 20 can also be moved out from the two sides of the middle frame housing 11 or from the bottom of the middle frame housing 11. According to the user's usage habits, the present disclosure is preferably moved out from the top of the middle frame housing 11.

[0051] In this embodiment, when the camera module 20 is received in the receiving groove 12, the upper surface of the camera module 20 is flush with the top surface of the middle frame shell 11. In this way, when the functional component 20 is received in the receiving groove 12, the upper surface of the functional component 20 constitutes a part of the middle frame shell 11, thereby not affecting the appearance of the mobile terminal 100.

[0052] The middle frame shell 11 disclosed in the present invention may include a frame and a bottom shell, and the bottom shell may be integrally formed with the frame, or may be assembled to the frame in a detachable manner. The notch of the receiving groove 12 is set on the frame, and the functional component 20 can be moved out of the frame or flush with the frame after being retracted. A control circuit board 13 is provided in the middle frame shell 11, and the functional component 20 and the drive device 30 are respectively communicated and connected to the control circuit board 13, and a processor (not shown) and a plurality of functional devices are provided on the control circuit board 13. Among them, the processor is used to control the drive device 30 according to the received control signal, thereby controlling the movement of the functional component 20 through the drive device 30, and the control signal can be a touch signal of the user touching the camera or video function module on the mobile phone or the associated APP.

[0053] That is to say, the functional component 20 disclosed in the present invention can be controlled to move in the middle frame shell 11. When the functional component 20 is not needed, the functional component 20 is controlled by the driving device 30 to be accommodated in the middle frame shell 11, that is, the functional component 20 is hidden in the middle frame shell 11. When the functional component 20 is needed, the functional component 20 is controlled by the driving device 30 to protrude out of the middle frame shell 11, so that the user can use the functional component 20 to take pictures, videos or videos. The functional component 20 disclosed in the present invention is a front camera module, which changes the camera 21 traditionally set on the front of the display screen to be controllably moved in and out from the side of the middle frame shell 11, which can meet the demand for a high screen-to-body ratio, thereby further realizing the design of a full screen.

[0054] The mobile terminal 100 in the present disclosure may be an electronic device such as a mobile phone, a tablet computer, a PDA, etc. In the present disclosure, the mobile terminal 100 is specifically described by taking a mobile phone as an example. It should be noted that the top of the terminal body 1 is the upper end of the mobile phone when the user habitually holds the mobile phone.

[0055] In one embodiment, the mobile terminal 100 further includes a flash (not shown), which is disposed on the module body 22. When the mobile terminal 100 needs to use the front-facing shooting function, the flash can provide lighting assistance to the camera 21, thereby improving the experience of self-portraits or video calls.

[0056] The mobile terminal 100 of the present disclosure movably sets the camera module in the terminal body 1. By protruding the camera module from the terminal body 1, the camera can be moved to the front of the terminal body 1 to make up for the lack of the front camera. When the front shooting function (such as Selfie or video call) is not needed, the functional component 20 is completely accommodated in the terminal body 1, and the camera can be hidden in the terminal body 1.

[0057] The drive device and mobile terminal disclosed in the present invention improve the structure of the drive device and are designed with a drop-proof impact design. When the functional component is impacted, a self-protection mechanism is implemented by the cooperation of the reset member and the connecting part, thereby protecting the functional component.

[0058] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the disclosure disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the claims of the present application.

[0059] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A driving device, assembled in a terminal body of a mobile terminal, characterized in that: The driving device includes a driving member and a transmission mechanism matched with the driving member, the transmission mechanism includes a base, a lead screw and a guide rail arranged side by side on the base, a transmission component connected to the driving member and the lead screw, and a connecting component respectively connected to the guide rail and a functional component in the terminal body, the connecting component includes a connecting part threadedly connected with the lead screw and a reset member acting on the connecting part; Wherein, in the initial state, the reset member abuts against the connecting portion so that the connecting portion is adapted to the lead screw, thereby driving the functional component to protrude from the terminal body or be accommodated in the terminal body; when the connecting component is subjected to an external force and the radial component of the external force in the axial direction of the lead screw is greater than the abutting force of the reset member, the connecting portion is detached from the lead screw; the connecting portion includes a connecting ring and an open nut connected to the connecting ring, the connecting ring is sleeved on a guide rail, and the open nut is adapted to the lead screw; the driving member is a stepping motor.

2. The driving device according to claim 1, characterized in that: The connecting assembly also includes a sliding seat and a connecting arm extending from the sliding seat; wherein the sliding seat is connected to the guide rail and slides along the guide rail, the connecting portion is arranged in the sliding seat, the reset member is engaged between the sliding seat and the connecting portion, and the connecting arm is connected to the functional component so that the functional component moves with the movement of the sliding seat; the open nut drives the sliding seat to slide under the rotation of the lead screw.

3. The driving device according to claim 1, characterized in that: There are two connecting parts, the two open nuts are arranged opposite to each other, and each open nut is equipped with a reset member.

4. The driving device according to claim 2, characterized in that: The reset member is a torsion spring, which is sleeved on the connecting ring. One torsion arm of the torsion spring is abutted against the open nut, and the other torsion arm of the torsion spring is abutted against the sliding seat.

5. The driving device according to claim 2, characterized in that: The reset member is a spring sheet, one end of which is fixed to the sliding seat, and the other end of which is abutted against the open nut.

6. The driving device according to claim 1, characterized in that: The transmission assembly is a gear combination or a combination of a transmission belt and a transmission wheel.

7. A mobile terminal, characterized in that: include: A terminal body, a functional component, and a driving device according to any one of claims 1 to 6, wherein the driving device comprises a driving member and a transmission mechanism cooperating with the driving member, the transmission mechanism comprises a base, a lead screw and a guide rail arranged side by side on the base, a transmission component connected to the driving member and the lead screw, and a connecting component respectively connected to the guide rail and the functional component in the terminal body, the connecting component comprises a connecting portion threadedly connected to the lead screw, and a reset member acting on the connecting portion; Wherein, in the initial state, the reset member abuts against the connecting portion so that the connecting portion is adapted to the lead screw, thereby driving the functional component to protrude from the terminal body or be accommodated in the terminal body; when the connecting component is subjected to an external force and the radial component of the external force in the axial direction of the lead screw is greater than the abutting force of the reset member, the connecting portion is detached from the lead screw.

8. The mobile terminal according to claim 7, characterized in that: The functional component includes a camera module, which includes a module body, at least one camera arranged on the module body, and a flexible circuit board extending from the module body; wherein the flexible circuit board is electrically connected to a control circuit board in the terminal body so that the camera is communicatively connected to the control circuit board.

9. The mobile terminal according to claim 8, characterized in that: The control circuit board also includes a processor, and the driving member is communicatively connected to the processor; wherein the processor controls the rotation of the driving member according to a received control signal, thereby driving the functional component to protrude from the terminal body or be accommodated in the terminal body.

10. The mobile terminal according to claim 8, characterized in that: The terminal body includes a middle frame shell, and the top of the middle frame shell is provided with a receiving groove adapted to the camera module, and the camera module is movably received in the receiving groove; wherein, when the camera module is received in the receiving groove, the upper surface of the camera module is flush with the top end surface of the middle frame shell.

11. The mobile terminal according to claim 7, characterized in that: The mobile terminal further includes a display module mounted on the terminal body from the front side of the terminal body; wherein the display module includes a full screen.

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