CN109788683B - Electronic device - Google Patents

Abstract

The present invention provides an electronic device, comprising: a driven component; a casing, wherein an opening is formed on the casing; a driving component, the driving component is arranged in the casing, the driving component and the driven component connected, the drive assembly drives the driven part to move to extend or retract from the opening, and the drive assembly drives the driven part to extend out of the opening and then rotate around the moving direction of the driven part , wherein the movement and rotation of the driven part are performed in steps. In the electronic device provided by the invention in this embodiment, the driven components are hidden in the casing, and the movement and rotation of the driven components can be realized by a set of driving components, which reduces the occupation of the surface area of the casing of the electronic equipment and expands the occupation of the electronic equipment. screen ratio. The movement and rotation of the driven components are realized by a set of driving components, which simplifies the structure of the driving components, thereby making the state switching more sensitive.

Description

Electronic equipment

technical field

The present invention relates to the field of communication technologies, and in particular, to an electronic device.

Background technique

With the development of communication technology, some components of electronic equipment are fixedly arranged on the end face of the casing, such as cameras, flashing lights and other components. When there are many components disposed on the surface of the housing, the electronic device will occupy the area of the surface of the housing and limit the screen-occupancy ratio of the electronic device.

It can be seen that there is a technical problem of limiting the screen-to-screen ratio of the electronic device in the existing solution for assembling the surface parts of the electronic device.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide an electronic device to solve the technical problem of limiting the screen-to-screen ratio of the electronic device in the existing assembly solution for the surface components of the electronic device.

In order to achieve the above purpose, the specific solutions provided in the embodiments of the present invention are as follows:

An embodiment of the present invention provides an electronic device, including:

driven parts;

a casing, the casing is provided with an opening;

a drive assembly, the drive assembly is disposed in the housing, the drive assembly is connected to the driven part, the drive assembly drives the driven part to move to extend or retract from the opening, and the drive assembly The driving assembly drives the driven part to extend out of the opening and then rotates around the moving direction of the driven part, wherein the movement and rotation of the driven part are performed in steps.

In the embodiment of the present invention, by hiding some components of the electronic device in the casing, and arranging a set of driving components in the casing, the driven components hidden in the casing can be driven to extend or retract through the opening on the casing, And the driven part can be driven to move and rotate step by step, so as to realize the solution of extending and rotating the driven part in the electronic device when it is in use, and retracting it into the casing when not in use. In the electronic device provided in this embodiment, the driven component is hidden in the casing, and the movement and rotation of the driven component can be realized by a set of driving components, which reduces the occupation of the surface area of the casing of the electronic device and expands the screen occupancy of the electronic device. Compare. The movement and rotation of the driven components are realized by a set of driving components, which simplifies the structure of the driving components. There is no need to set up two different sets of transmission components, and there is no need to call two sets of control circuits to control two sets of different transmission components, but one control circuit controls the movement and rotation of the driven components, so that the sensitivity of state switching is higher.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

1 is a schematic structural diagram of an electronic device according to an embodiment of the present invention;

2 is a schematic structural diagram of another electronic device provided by an embodiment of the present invention;

3 is a schematic structural diagram of another electronic device provided by an embodiment of the present invention;

4 is a schematic structural diagram of another electronic device provided by an embodiment of the present invention;

5 is a schematic structural diagram of another electronic device provided by an embodiment of the present invention;

6 is a schematic structural diagram of another electronic device provided by an embodiment of the present invention;

7 is a schematic structural diagram of another electronic device provided by an embodiment of the present invention;

8 is a schematic structural diagram of another electronic device provided by an embodiment of the present invention;

FIG. 9 is a schematic partial structural diagram of another electronic device provided by an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Referring to FIG. 1 , it is a schematic structural diagram of an electronic device according to an embodiment of the present invention. As shown in Figure 1 and Figure 2, the electronic equipment mainly includes:

the driven part 10;

the casing 20, the casing 20 is provided with an opening 21;

The driving assembly 30, the driving assembly 30 is arranged in the housing 20, the driving assembly 30 is connected with the driven part 10, the driving assembly 30 drives the driven part 10 to move to extend or retract from the opening 21, and the driving assembly 30 drives the driven part The 10 protrudes out of the opening 21 and then rotates around the moving direction of the driven member 10 , wherein the movement and rotation of the driven member 10 are performed in steps.

In this embodiment, the driving assembly 30 and the driven part 10 are both disposed in the casing 20 , the casing 20 is provided with an opening 21 , and the driven part 10 can be driven by the driving assembly 30 to extend from the opening 21 or retract the casing body 20 , and the driven part 10 can rotate around the moving direction of the driven part 10 after protruding out of the opening 21 . The driven part 10 moves along the axial direction of the opening 21 , and extends or retracts the casing 20 from the opening 21 , and the moving direction of the driven part 10 can be the axial direction of the opening 21 .

The electronic devices in the embodiments of the present invention may include, but are not limited to, mobile phones, tablet computers, notebook computers, handheld computers, vehicle-mounted terminals, wearable devices, and pedometers. These electronic devices are generally provided with a display screen. In order not to affect the proportion of the display screen of these electronic devices, optionally, as shown in FIG. 1 and FIG. An opening 21 is provided on the end face of the casing 20 of the electronic device on which the display screen or the backplane is arranged, so as to ensure the screen ratio of the electronic device.

Optionally, the driven component 10 is at least one of a camera, a sensor, a fingerprint identification module, a receiver, and a fill light.

Components such as cameras with high demands on the electronic device are hidden in the casing 20 , and then protruded through the opening 21 when necessary. If the driven component 10 is a camera, the driving component 30 drives the camera to extend out of the housing 20 and rotate, so that the function of the front and rear cameras of the electronic device can be realized. In this way, it is not necessary to install two sets of cameras and related components on the electronic device, which saves the use of components, reduces the cost, and facilitates the space layout and realizes the full-screen design of the electronic device. The movement and rotation of the driven components are realized by a set of driving components, which simplifies the structure of the driving components. There is no need to set up two sets of different transmission components, and there is no need to call two sets of control circuits to control two sets of different transmission components, but one control circuit controls the switching of the moving state and the rotating state of the driven components, so that the state switching can be achieved. higher sensitivity.

In use, as shown in FIG. 1 to FIG. 5 , the driving assembly 30 drives the driven part 10 to move and extends from the opening 21 , and the driving assembly 30 drives the driven part 10 to rotate around the axis of the opening 21 . After use, the driving assembly 30 drives the driven component 10 to retract into the housing 20 from the opening 21 of the housing 20 , or rotates to the initial position before retracting into the housing 20 .

In the electronic device provided in the above-mentioned embodiment, the driving and rotation of the driven component 10 can be realized by only one set of driving components 30, and there is no need to provide two sets of different transmission components, so that there is no need to separately control two sets of different transmission components. It can be seen that , the transmission assembly of the embodiment of the present invention is simple in structure, occupies less space, and has high control sensitivity.

In a specific embodiment, as shown in FIGS. 1 to 8 , the drive assembly 30 may include:

a drive mechanism 31, which is provided in and connected to the housing 20; and

The transmission mechanism 32 is respectively connected with the driving mechanism 31 and the driven part 10 , and the driving mechanism 31 drives the driven part 10 to move and rotate step by step through the transmission mechanism 32 .

In this embodiment, the driving assembly 30 includes a driving mechanism 31 and a transmission mechanism 32 , the driving mechanism 31 is connected with the transmission mechanism 32 , and the transmission mechanism 32 is also connected with the driven component 10 . The driving mechanism 31 provides driving force to the transmission mechanism 32 , and the driven member 10 is driven to move and rotate step by step through the transmission mechanism 32 . The driving mechanism 31 can be an electric driving mechanism 31 or a mechanical driving mechanism, the electric driving mechanism 31 can be a driving motor 311, and the mechanical driving mechanism 31 can be a manual transmission mechanism 32, the user can manually twist the crank handle, and the crank handle drives the output shaft to rotate . Other devices capable of providing power can be applied to this embodiment, which is not limited.

Specifically, the driving mechanism 31 may be a driving motor 311, and the transmission mechanism 32 may include:

A lead screw 321, the central axis of the lead screw 321 is oriented along the axis of the opening 21, the first end of the lead screw 321 is connected with the drive motor 311 to be driven to rotate by the drive motor 311, the lead screw 321 includes a threaded section and a non-threaded section, the threaded section Adjacent to the first end, the non-threaded segment is provided with a first gear 323;

The screw sleeve 322 is connected with the driven part 10, and the screw sleeve 322 is threadedly matched with the screw 321 to drive the driven part 10 to move;

The second gear 324 is connected with the driven part 10 . When the screw sleeve 322 moves to the non-threaded section along the screw 321 , the second gear 324 meshes with the first gear 323 to drive the driven part 10 to rotate.

In this embodiment, the driving mechanism 31 is a driving motor 311 , and the output shaft of the driving motor 311 is connected to the transmission mechanism 32 . The drive motor 311 can receive the control signal sent by the main board of the electronic device through the drive circuit board 312 , and control the output shaft to rotate according to the control signal, so as to drive the transmission mechanism 32 to rotate. The transmission mechanism 32 includes a lead screw 321 and a lead screw sleeve 322 , the lead screw sleeve 322 is sleeved on the lead screw 321 , and the central axis of the lead screw 321 is oriented along the axis of the opening 21 .

The lead screw 321 includes a threaded section and a non-threaded section, the threaded section is provided with a thread, and the non-threaded section is not provided with a thread, and is generally a smooth curved surface. Generally, the length of the threaded section on the lead screw 321 is greater than the length of the non-threaded section.

Preferably, the lead screw 321 is a ball screw, and the lead screw sleeve 322 is provided with balls that are in rolling contact with the ball screw. Through the contact between the balls in the lead screw sleeve 322 and the threaded section of the lead screw 321, the rotational motion of the lead screw 321 is converted into the linear motion of the lead screw sleeve 322, or the torque is converted into an axial repetitive force, Low friction, high precision, reversibility and high efficiency at the same time. Therefore, selecting the lead screw 321 as a ball screw can improve the motion accuracy and stability of the driven component 10, and is efficient and convenient.

Preferably, both the first gear 323 and the second gear 324 are helical gears.

The helical gear includes a cylindrical shaft body and teeth, and the teeth form a certain angle with the axis of the cylinder. When a pair of parallel shaft helical spur gears mesh, the tooth profile of the helical gear gradually enters and disengages, and the length of the contact line of the helical gear tooth profile gradually increases from zero, and then gradually shortens until it is out of contact. When the front end face is disengaged, the rear end face of the tooth profile is still engaged, the load is not suddenly added or removed in the direction of the tooth width, the meshing process is longer than that of the spur gear, and the number of meshing gear pairs is also smaller than that of the straight gear. There are many gears, which makes the coincidence degree larger. Therefore, the first gear 323 and the second gear 324 are preferably helical gears meshing with each other, so that the meshing is smoother, the bearing capacity is stronger, and the noise and impact are smaller.

When the lead screw 321 is driven to rotate by the drive motor 311, the lead screw sleeve 322 cooperates with the threaded section of the lead screw 321, and the lead screw sleeve 322 follows the threaded section of the lead screw 321 from the first end close to the drive motor 311 toward the drive motor away from the first end The direction of 311 makes a linear motion, that is, it moves toward the direction close to the opening 21 . Since the driven part 10 is connected with the screw sleeve 322 , the driven part 10 also moves toward the direction close to the opening 21 accordingly.

When the lead screw sleeve 322 moves along the threaded section of the lead screw 321 to the non-threaded section, the lead screw sleeve 322 and the lead screw 321 are no longer threadedly matched, and the lead screw sleeve 322 no longer moves linearly along the lead screw 321 . At this time, the driven part 10 has protruded out of the opening 21 of the housing 20, the non-threaded section is provided with a first gear 323, the first gear 323 is driven to rotate by the lead screw 321, the first gear 323 meshes with the second gear 324 for transmission, the The second gear 324 is connected with the driven part 10 , and the second gear 324 drives the driven part 10 to rotate, so that the driven part 10 can rotate after extending out of the opening 21 .

In this embodiment, using the principle that the lead screw 321 and the lead screw sleeve 322 cooperate to convert the direction of movement, the lead screw 321 is driven to rotate by the driving motor 311, and the lead screw sleeve 322 and the first gear 323 and the second gear 324 that mesh with each other are used in conjunction with each other. , the step-by-step movement and rotation of the driven component 10 can be realized. The drive assembly 30 has a simple structure and sensitive control, which optimizes the control scheme of the driven component 10 .

Optionally, the lead screw sleeve 322 is connected with the driven part 10 through the first connecting rod 325, the second gear 324 is connected with the driven part 10 through the second connecting rod 326, the first connecting rod 325, the second connecting rod 326 and the The lead screw 321 is substantially parallel.

As shown in FIGS. 3 to 8 , a first connecting rod 325 and a second connecting rod 326 are added. One end of the first connecting rod 325 is connected to the screw sleeve 322 , the other end is connected to the driven component 10 , and one end of the second connecting rod 326 is connected The second gear 324 is connected, and the other end is connected to the driven member 10 . In this way, by means of the first connecting rod 325 and the second connecting rod 326 to drive the driven part 10 to move and rotate, the moving distance of the driven part 10 can be increased, the driven part 10 can be pushed out of the opening 21, and the screw sleeve 322, gear The other structures do not need to be located close to the opening 21 area of the housing 20 , which frees the installation space in the housing 20 near the opening 21 area, and improves the flexibility of the assembly of the drive assembly 30 .

Further, the transmission mechanism 32 may also include:

The elastic reset member 327 is arranged between the first gear 323 and the screw sleeve 322 , and the elastic reset member 327 drives the screw sleeve 322 away from the first gear 323 .

In this embodiment, an elastic reset member 327 is added between the first gear 323 and the screw sleeve 322 , and the elastic reset member 327 always drives the screw sleeve 322 away from the first gear 323 , that is, the elastic reset member 327 continuously drives the screw sleeve 322 Towards the threaded section, the elastic properties of the elastic reset member 327 can be used to move the screw sleeve 322 toward the threaded section, so that the screw sleeve 322 and the screw 321 can be threaded again, and the driven component 10 can be moved between the moving state and the rotating state. switch.

Specifically, the elastic restoring member 327 can be sleeved on the lead screw 321 , and one end of the elastic restoring member 327 is connected to the first gear 323 .

In this way, when the lead screw sleeve 322 moves along the threaded section of the lead screw 321 to non-threaded, the elastic reset member 327 pushes the first gear 323 to approach the second gear 324, so that the first gear 323 can engage with the second gear 324, The screw sleeve 322 stops moving, that is, the moving state of the driven member 10 is rapidly switched to the rotating state. When the lead screw 321 rotates in the reverse direction to drive the driven member 10 to rotate back to the initial position, the second gear 324 and the first gear 323 are disengaged from the meshing state, the first gear 323 is disengaged from the second gear 324, and the lead screw is pushed by the elastic reset member 327 The sleeve 322 slides from the non-threaded section to the threaded section, so that the rotating state of the driven component 10 can be quickly switched to the moving state, which ensures the stability and continuity of the driving process.

The elastic restoring member 327 may be a spring as shown in FIG. 3 to FIG. 8 . Of course, the elastic restoring member 327 may also be other parts with elastic properties, which are not specifically limited in the present invention.

Optionally, as shown in FIG. 3 to FIG. 8 , the electronic device may further include:

The limiting member 22 is provided in the housing 20 , and the limiting member 22 is located at an axial end of the second gear 324 away from the lead screw 321 .

In this embodiment, the limiting member 22 is arranged in the housing 20 to limit the movement of the second gear 324 in a certain area. The confinement of the second gear 324 within the current region may prevent excessive movement of the second gear 324 . In this way, when the lead screw sleeve 322 moves to the non-threaded section of the lead screw 321, the second gear 324 is meshed and rotated by the first gear 323, and is restricted by the limiting member 22 to move within a certain range, restricting the second gear 324. And the maximum moving distance of the driven part 10 connected with the second gear 324 can improve the safety of the driven part 10 .

Optionally, the limiting member 22 is provided with a guide hole 23 , and the second gear 324 is connected to the driven member 10 through a second connecting rod 326 , wherein the second connecting rod 326 is connected to the driven member 10 through the guide hole 23 . .

A guide hole 23 is provided on the limiting member 22, and the second connecting rod 326 is connected to the driven part 10 through the guide hole 23. Restricted by the guide hole 23, the second connecting rod 326 moves and rotates in the guide hole 23 to avoid In order to prevent the second connecting rod 326 from swinging and dislocating, the stability of the driven component 10 can be improved.

In some embodiments, as shown in FIGS. 3-8 , the driven component 10 may include:

The first bracket 11, the first bracket 11 is movably installed at the opening 21, and the first bracket 11 is connected with the screw sleeve 322;

The second bracket 12, the second bracket 12 is rotatably connected to the first bracket 11 around the axis of the opening 21, and the second bracket 12 is located at the end of the first bracket 11 away from the lead screw 321, and the second bracket 12 is connected to the first bracket 11. The two gears 324 are connected;

The main body 13 is provided on the second bracket 12 .

In this embodiment, by arranging the first bracket 11 and the second bracket 12 , the connection scheme between the main body portion 13 and the driving assembly 30 is optimized. The first bracket 11 is installed at the opening 21 of the housing 20 , and the first bracket 11 is connected to the screw sleeve 322 . The second bracket 12 is connected to the end of the first bracket 11 away from the lead screw 321 , and the second bracket 12 is connected to the lead screw sleeve 322 . The main body 13 of the driven member 10 , such as a camera assembly, etc., is provided on the second bracket 12 .

In this way, the first bracket 11 can be pushed by the lead screw sleeve 322 to perform linear movement, and at the same time, the first bracket 11 pushes the second bracket 12 to perform linear movement. When the lead screw sleeve 322 moves from the threaded section to the non-threaded section, the lead screw sleeve 322 stops linear movement, and the first bracket 11 also stops linear movement accordingly. At this time, the first gear 323 meshes with the second gear 324 for transmission, the second gear 324 rotates, the second bracket 12 is driven to rotate by the second gear 324, and the main body 13 disposed on the second bracket 12 also follows. By rotating, the first movement and the second rotation of the main body portion 13 can be realized. The drive assembly 30 is connected to the main body 13 through the relevant bracket, and drives the main body 13 to move and rotate. The structure is simple and compact, which is convenient for disassembly and maintenance, and can avoid interference.

As shown in FIG. 4 , the end of the screw sleeve 322 is provided with a first connecting rod 325 , the second gear 324 is connected with the second connecting rod 326 , and the first bracket 11 is disposed on the first connecting rod 325 away from the screw sleeve 322 . At one end, the second bracket 12 is connected with the end of the second connecting rod 326 away from the second gear 324 , so that the movement and rotation of the main body portion 13 can be realized.

Optionally, as shown in FIGS. 3 to 9 , the first bracket 11 may be provided with a through hole 110 penetrating along the axis direction of the opening 21 , and the second gear 324 is connected to the second bracket 12 through the through hole 110 , or The second gear is connected to the second bracket 12 through the through hole 110 through the second connecting rod 326 . In this way, the first support 11 can drive the second support 12 to move, without interfering with the second connecting rod 326 to drive the second support 12 to rotate, and the structure is compact and reasonable.

Optionally, one of the first bracket 11 and the second bracket 12 may be provided with an annular flange portion, and the other may be provided with an annular groove adapted to the annular flange portion, and the annular flange portion can be pivoted It is rotatably installed in the annular groove.

Between the first bracket 11 and the second bracket 12, a mutually matching annular flange portion and an annular groove are provided, and the annular flange portion is pivotally mounted in the annular groove. In this way, the two can achieve synchronous movement along the axis of the opening 21 , and can realize the rotation of the second bracket 12 relative to the first bracket 11 around the axis of the opening 21 .

For example, as shown in FIG. 9 , an annular flange portion 111 may be provided on the first bracket 11 , and an annular groove 121 may be provided on the second bracket 12 , and the annular flange portion 111 may be pivotally installed in the annular groove 121 . When the first bracket 11 moves in a straight line, the second bracket 12 is pushed to move along with it. When the first bracket 11 stops moving and the second bracket 12 is rotated by the second connecting rod 326 , the annular groove 121 on the second bracket 12 rotates relative to the annular flange 111 , and does not drive the first bracket 11 to rotate accordingly.

In specific implementation, as shown in FIG. 9 , the annular flange portion 111 may be provided on the surface of the first bracket 11 facing the second bracket 12 , and the cross-section of the annular flange portion 111 may be L-shaped. The protruding direction of the L-shaped annular flange portion is that the surface of the first bracket 11 points outwards toward the second bracket 12 .

Alternatively, an annular groove may be provided on the first bracket 11 , and an annular flange portion may be provided on the second bracket 12 , and the annular flange portion may be pivotally installed in the annular groove. In this way, when the first bracket 11 moves in a straight line, the second bracket 12 can be pushed to move along with it. The second bracket 12 stops moving, the second bracket 12 is driven to rotate by the second connecting rod 326 , the annular flange portion on the second bracket 12 rotates relative to the annular groove, and does not drive the first bracket 11 to rotate accordingly.

In specific implementation, the annular flange portion may be provided on the surface of the second bracket 12 facing the first bracket 11 and be L-shaped, and the protruding direction of the L-shaped annular flange portion is that the surface of the second bracket 12 points inward to the first bracket 11 . The surface of the bracket 11 .

In some embodiments, the main body portion 13 may be connected to the circuit board of the electronic device through the multilayer flexible circuit board 14 .

The main body portion 13 is mostly an electronic control element, and the main body portion 13 is connected to the circuit board of the electronic device through a circuit board to realize data interaction and control. The main body portion 13 is provided to be connected to the circuit board through a multilayer flexible circuit board 14, and the multilayer flexible circuit board 14 may also preferably be a linear structure.

In this way, when the driven component 10 is driven by the driving assembly 30 to expand, contract or rotate, the multi-layer flexible circuit board 14 expands, contracts or rotates with the driven component 10 , and will not be easily broken or twisted, thereby ensuring the normal use of the driven component 10 .

For the electronic device provided in this embodiment, for the existing electronic device in which two sets of cameras and their control components are respectively arranged at the front screen position and the back cover, the electronic device in this embodiment has the following advantages: For shooting, it is no longer necessary to retain the opening for the camera installation in the front screen position to increase the screen ratio; the camera can be rotated 360° front and rear to maximize the camera’s shooting angle of view; it reduces the occupation of stacking space in the electronic equipment and reduces the assembly size ;Away from the antenna area of electronic equipment, try not to occupy the clearance space of the antenna, and reduce the radio frequency interference to the antenna, which is conducive to the improvement of the antenna performance; a set of transmission components only needs a set of control circuits to drive the driven components, and does not occupy more chips resources, reducing the design difficulty of electronic equipment baseband, etc.; a single circuit and a single motor control the front and rear camera modes, the switching is fast and smooth, and the response speed is improved.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (14)

1. An electronic device, comprising:

a driven member;

the shell is provided with an opening;

a driving assembly disposed in the housing, the driving assembly being connected to the driven member, the driving assembly driving the driven member to move so as to extend out of or retract into the opening, and the driving assembly driving the driven member to extend out of the opening and then rotate around a moving direction of the driven member, wherein the movement and the rotation of the driven member are performed in steps,

the driving mechanism is arranged in the shell and is connected with the shell; and

the transmission mechanism is respectively connected with the driving mechanism and the driven part, the driving mechanism drives the driven part to move and rotate step by step through the transmission mechanism, the driving mechanism is a driving motor, and the transmission mechanism comprises:

the central axis of the screw is oriented along the axis of the opening, the first end of the screw is connected with the driving motor so as to be driven by the driving motor to rotate, the screw comprises a threaded section and a non-threaded section, the threaded section is adjacent to the first end, and a first gear is arranged on the non-threaded section;

the screw sleeve is connected with the driven part and is in threaded fit with the screw to drive the driven part to move;

the second gear is meshed with the first gear to drive the driven part to rotate when the lead screw sleeve moves to the non-threaded section along the lead screw, the lead screw sleeve is connected with the driven part through a first connecting rod, the second gear is connected with the driven part through a second connecting rod, and the first connecting rod, the second connecting rod and the lead screw are approximately parallel, wherein the lead screw is positioned between the first connecting rod and the second connecting rod, and the orthographic projection of the lead screw, the first connecting rod and the second connecting rod on the plane of the driven part falls into the driven part.

2. The electronic device of claim 1, wherein the transmission mechanism further comprises:

elasticity resets, elasticity resets and establishes first gear with between the lead screw cover, just elasticity resets the drive the lead screw cover is kept away from first gear.

3. The electronic device of claim 2, wherein the elastic reset member is sleeved on the lead screw, and one end of the elastic reset member is connected to the first gear.

4. The electronic device of claim 1, further comprising:

the limiting part is arranged in the shell and is positioned at one axial end, far away from the screw rod, of the second gear.

5. The electronic device according to claim 4, wherein a guide hole is provided on the stopper, and the second gear is connected to the driven member through a second connecting rod, wherein the second connecting rod passes through the guide hole and is connected to the driven member.

6. The electronic device according to claim 1, wherein the driven member includes:

the first bracket is movably arranged at the opening and is connected with the lead screw sleeve;

the second bracket is rotatably connected to the first bracket around the axis of the opening, is positioned at one end of the first bracket, which is far away from the screw rod, and is connected with the second gear;

a main body portion provided on the second bracket.

7. The electronic device according to claim 6, wherein a through hole penetrating in an axial direction of the opening is provided in the first bracket, and the second gear is connected to the second bracket through a second connecting rod, wherein the second connecting rod penetrates the through hole and is connected to the second bracket.

8. The electronic device according to claim 6, wherein one of the first bracket and the second bracket is provided with an annular flange part, and the other one of the first bracket and the second bracket is provided with an annular groove adapted to the annular flange part, and the annular flange part is pivotally mounted in the annular groove.

9. The electronic device according to claim 8, wherein the annular flange portion is provided on a surface of the first bracket facing the second bracket, and a cross section of the annular flange portion is L-shaped.

10. The electronic device according to claim 6, wherein the main body portion is connected to a circuit main board of the electronic device through a multilayer flexible circuit board.

11. The electronic device of claim 10, wherein the multi-layer flexible circuit board is a linear structure.

12. The electronic device of any of claims 1-11, wherein the first gear and the second gear are both helical gears.

13. The electronic device according to any one of claims 1 to 11, wherein the screw is a ball screw, and balls in rolling contact with the ball screw are provided in the screw housing.

14. The electronic device of any one of claims 1-11, wherein the driven component is at least one of a camera, a sensor, a fingerprint recognition module, a receiver, and a fill-in light.

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