CN113852701B

CN113852701B - Electronic device and control method thereof

Info

Publication number: CN113852701B
Application number: CN202010599744.5A
Authority: CN
Inventors: 左州全
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2022-11-01
Anticipated expiration: 2040-06-28
Also published as: WO2022001309A1; CN113852701A

Abstract

The embodiment of the application provides electronic equipment and a control method thereof, wherein the electronic equipment comprises a first carrier, a second carrier, a flexible screen assembly, a driving mechanism and a detection mechanism, wherein the second carrier can move relative to the first carrier, so that the first carrier and the second carrier are in an unfolding state or a folding state; the flexible screen assembly is wound on the second carrier, and a first end and a second end of the flexible screen assembly are both connected with the first carrier; the driving mechanism is configured to drive the first carrier and the second carrier to move relatively, and the first carrier and the second carrier drive the flexible screen assembly to move together when moving relatively; the detection mechanism is configured to detect the working state of the driving mechanism within a preset time period to obtain a detection value, so that the driving mechanism can be adjusted according to the detection value, and the adjusted driving mechanism is in the preset working state. The electronic equipment provided by the embodiment of the application can adjust the working state of the driving mechanism, so that the driving mechanism is in a preset working state.

Description

Electronic device and control method thereof

Technical Field

The present disclosure relates to electronic technologies, and in particular, to an electronic device and a control method thereof.

Background

With the development of electronic technology, electronic devices such as smart phones have higher and higher intelligent degree. The display device can display a picture through a display screen thereof.

Among them, the flexible display screen is spotlighted because it has characteristics of being foldable and bendable, and the entire size of the display device can be reduced by folding or bending the flexible display screen. In the related art, two driving mechanisms are generally adopted to drive two shells to move relatively and drive a flexible display screen to move respectively, so that a part of the flexible display screen can be unfolded outside the electronic device or retracted inside the electronic device, and the two driving mechanisms may have a problem of unsynchronized movement.

Disclosure of Invention

The embodiment of the application provides electronic equipment and a control method thereof, which can improve the consistency of the relative motion of two carriers and the motion of a flexible screen assembly, and can adjust the working state of a driving mechanism, so that the driving mechanism is in a preset working state.

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

a first carrier;

a second carrier movable relative to the first carrier such that the first and second carriers are in an expanded state or a collapsed state;

the flexible screen assembly is wound on the second carrier, and a first end and a second end of the flexible screen assembly are both connected with the first carrier;

a drive mechanism configured to drive relative movement of the first and second carriers and to drive the flexible screen assembly to move together upon the relative movement of the first and second carriers;

the detection mechanism is configured to detect the working state of the driving mechanism within a preset time period to obtain a detection value, so that the driving mechanism can be adjusted according to the detection value, and the adjusted driving mechanism is in a preset working state.

The embodiment of the application provides a control method of electronic equipment, the electronic equipment comprises a first carrier, a second carrier, a flexible screen assembly, a first driving mechanism, a second driving mechanism, a first detection mechanism and a second detection mechanism, the first carrier and the second carrier can move relatively, the flexible screen assembly is wound on the second carrier, a first end and a second end of the flexible screen assembly are both connected with the first carrier, the first driving mechanism is arranged on one side of the first carrier, the second driving mechanism is arranged on the other side of the first carrier, the other side of the first carrier is arranged opposite to one side of the first carrier, and the first driving mechanism and the second driving mechanism are used for driving the first carrier and the second carrier to move in a direction close to or far away from each other;

the method comprises the following steps:

detecting the working state of the first driving mechanism within a preset time period through the first detection mechanism to obtain a first detection value, and detecting the working state of the second driving mechanism within the preset time period through the second detection mechanism to obtain a second detection value;

comparing the first detection value and the second detection value to obtain a difference value;

judging whether the difference value is larger than a threshold value or not;

if the difference value is larger than the threshold value, the first driving mechanism and/or the second driving mechanism are/is adjusted, so that the adjusted first driving mechanism and the adjusted second driving mechanism synchronously drive the first carrier and the second carrier to move in the direction of approaching to or separating from each other.

The embodiment of the application adopts a driving mechanism to realize the relative motion of two carriers and the motion of flexible screen assembly, improves the relative motion of two carriers and the motion uniformity of flexible screen assembly, and through setting up detection mechanism in electronic equipment in addition to detect the operating condition of driving mechanism in the time quantum of predetermineeing, and adjust driving mechanism according to the testing result, can be so that the actuating mechanism after the adjustment can be in and predetermine operating condition.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can also be derived from them without inventive effort.

For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, wherein like reference numerals represent like parts in the following description.

Fig. 1 is a schematic structural diagram of a first electronic device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a second electronic device according to an embodiment of the present application.

Fig. 3 is an exploded view of the electronic device shown in fig. 1.

Fig. 4 is a first partial structure diagram of the electronic device shown in fig. 1.

Fig. 5 is a first structural diagram of a portion of the electronic device shown in fig. 2.

Fig. 6 is an enlarged schematic structural diagram of a region a in the electronic device shown in fig. 5.

Fig. 7 is a schematic structural diagram of the first moving element, the first driving belt and the first driving mechanism in the electronic device shown in fig. 5.

Fig. 8 is an exploded view of the first moving element, the first drive belt, and the first drive mechanism of fig. 7.

Fig. 9 is a schematic structural view of the first moving element, the first driving belt and the link member of the first driving mechanism shown in fig. 8.

Fig. 10 is a second structural view of the first moving member, the first belt, and the first driving mechanism of the first driving mechanism shown in fig. 8.

Fig. 11 is a third structural view of the first moving member, the first belt, and the first driving mechanism of the first driving mechanism shown in fig. 8.

Fig. 12 is a schematic diagram of a partially exploded structure of the first drive mechanism shown in fig. 11.

Fig. 13 is a schematic structural view of a coupling in the first drive mechanism shown in fig. 11.

Fig. 14 is a schematic structural diagram of a limiting element in the electronic device shown in fig. 3.

Fig. 15 is a schematic diagram of a second structure of a portion of the electronic device shown in fig. 2.

Fig. 16 is a third schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 17 is a second partial structure diagram of the electronic device shown in fig. 1.

Fig. 18 is an enlarged structural schematic diagram of a B region in the electronic device shown in fig. 16.

FIG. 19 is a schematic view of the magnetic encoder in region B of FIG. 18.

Fig. 20 is a flowchart illustrating a control method of an electronic device according to an embodiment of the present application.

Fig. 21 is a fourth structural schematic diagram of an electronic device according to an embodiment of the present application.

Fig. 22 is a fifth structural schematic diagram of an electronic device according to an 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 should be apparent that the described embodiments are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are intended to be within the scope of the present application.

Referring to fig. 1 to 2, fig. 1 is a first structural schematic diagram of an electronic device according to an embodiment of the present disclosure, and fig. 2 is a second structural schematic diagram of the electronic device according to the embodiment of the present disclosure. An electronic device such as electronic device 20 of fig. 1 may be a computing device such as a laptop computer, a computer monitor containing an embedded computer, a tablet, a cellular telephone, a media player, or other handheld or portable electronic device, a smaller device (such as a wristwatch device, a hanging device, an earphone or headphone device, a device embedded in eyeglasses, or other device worn on the head of a user, or other wearable or miniature device), a television, a computer display not containing an embedded computer, a gaming device, a navigation device, an embedded system (such as a system in which an electronic device with a display is installed in a kiosk or automobile), a device that implements the functionality of two or more of these devices, or other electronic devices. In the exemplary configuration of fig. 1, the electronic device 20 is a portable device, such as a cellular telephone, media player, tablet, or other portable computing device. Other configurations may be used for the electronic device 20, if desired. The example of fig. 1 is merely exemplary.

Referring to fig. 3, fig. 3 is an exploded view of the electronic device shown in fig. 1. The electronic device 20 may include a first carrier 100, a second carrier 200, and a flexible screen assembly 300. The first and

second carriers

100 and 200 are relatively movable so that switching between the unfolded state and the folded state can be achieved. In this regard, the furled state may refer to fig. 1, i.e., a state in which the first carrier 100 and the second carrier 200 are relatively moved in a direction to approach each other to be finally formed. In this case, the unfolded state may refer to fig. 2, i.e., a state in which the first and

second carriers

100 and 200 are relatively moved in a direction away from each other.

It is understood that the first carrier 100 and the second carrier 200 may undergo relative movement to achieve longitudinal stretching of the electronic device 20. Here, the longitudinal drawing refers to a manner of drawing in a direction perpendicular to the display direction of the flexible screen assembly 43. Therefore, the size of the screen display area of the electronic device 20 can be freely adjusted, the display part of the electronic device 20 can be expanded and the operation experience of a user can be improved when a large screen is needed, and meanwhile, the display part can not be expanded when the large screen is not needed, so that the whole device is small in size and convenient to carry.

It should be noted that the unfolded state of the first carrier 100 and the second carrier 200 may be various, such as that the maximum moving distance of the first carrier 100 and the second carrier 200 in the direction away from each other is H, and the first carrier 100 and the second carrier 200 may move away from each other in the folded state to achieve the unfolded state with different distances by the same distance as one quarter H, one half H, and three quarters H. The state of the distance gradually becoming farther may be defined as a first developed state, a second developed state, a third developed state, and the like in this order.

It should be noted that when the first carrier 100 and the second carrier 200 are in the first unfolded state, such as the distance of the relative moving away of the first carrier 100 and the second carrier 200 in the first unfolded state is a quarter H, the first carrier 100 and the second carrier 200 can still perform the relative moving away to reach the second unfolded state, such as the distance of the relative moving away of the first carrier 100 and the second carrier 200 in the second unfolded state is a half H.

It is to be understood that the one or more unfolded states of the first and

second carriers

100 and 200 of the embodiments of the present application are only examples and do not constitute a limitation on the unfolded states of the first and

second carriers

100 and 200 of the embodiments of the present application.

The flexible screen assembly 300 is bent and wound around the second carrier 200, and the first end and the second end of the flexible screen assembly 300 are both connected to the first carrier 100, and the first carrier 100 and the second carrier 200 can support the flexible screen assembly 300. The first carrier 100 and the second carrier 200 may drive the flexible screen assembly 300 to move together or drive the flexible screen assembly 300 to move during the mutual movement, so that the length of the flexible screen assembly 300 may be adjusted, and the size of the display area of the electronic device may be changed.

When the first and

second carriers

100 and 200 are relatively moved in a direction to approach each other, the first and

second carriers

100 and 200 may drive a portion of the flexible screen assembly 300 to be received inside the electronic device 20, such as inside the first housing 800 of the electronic device 20. The first and

second carriers

100 and 200 may drive a portion of the flexible screen assembly 300 to protrude from the interior of the electronic device 20 when the first and

second carriers

100 and 200 are relatively moved in a direction away from each other.

Wherein the first casing 800 may cover a periphery of the first carrier 100, and the second casing 900 may cover a periphery of the second carrier 200.

It should be noted that, during the movement of the flexible screen assembly 300, especially when the first carrier 100 and the second carrier 200 move relatively in the direction of approaching each other, the flexible screen assembly 300 may be folded, curled, and deformed by an external force to abut against the first housing 800 of the electronic device 20, so as to generate a friction force, which affects the smoothness of the flexible screen assembly 300 during the movement. It should also be noted that flexible screen assembly 300 may also be susceptible to damage to flexible screen assembly 300 and reduce the life of flexible screen assembly 300 by providing a long term frictional force with first housing 800 of electronic device 20.

Based on this, in the moving process of the first carrier 100 and the second carrier 200 in the embodiment of the present application, real-time transmission to the flexible screen assembly 300 may be realized through a plurality of transmission structures, so as to prevent the flexible screen assembly 300 from being folded, curled, and the like due to an external force in the moving process to abut against the first housing 800 of the electronic device 20, prevent the flexible screen assembly 300 from forming a friction force with the first housing 800 in the moving process, improve the smoothness of the flexible screen assembly 300 in the moving process, and increase the service life of the flexible screen assembly 300. Such as when a portion of the flexible screen assembly 300 is retracted into the first and

second carriers

100 and 200, a traction on one end of the flexible screen assembly 300 may be achieved, keeping the flexible screen assembly 300 constantly being pulled by the force of the force during the retraction process, without being easily deformed such as loose or wrinkled.

Referring to fig. 4 and fig. 5, fig. 4 is a schematic structural diagram of a portion of the electronic device shown in fig. 1, and fig. 5 is a schematic structural diagram of a portion of the electronic device shown in fig. 2. The first carrier 100 is provided with two sliding slots 120, wherein one sliding slot 120 is located at one side of the first carrier 100, and the other sliding slot 120 is located at the other side of the first carrier 100. It will be appreciated that one side of the first carrier 100 is positioned opposite the other side of the first carrier 100. The number of the chutes 120 formed in the first carrier 100 is not limited to two. It is also possible that the first carrier 100 is provided with a slide 120 on only one side thereof. The first carrier 100 is provided with two sliding grooves 120 for example.

The first and

second carriers

100 and 200 may be moved relative to each other by a transmission structure to maintain tension on the flexible screen assembly 300. The transmission structure in which the first and

second carriers

100 and 200 move with each other may include two moving members and two transmission belts. For example, the driving structure may include a first moving member 140, a second moving member 160, a first driving belt 420, and a second driving belt 440. The first moving member 140 is disposed in one slide groove 120, the second moving member 160 is disposed in the other slide groove 120, the first moving member 140 is movable in one slide groove 120, and the second moving member 160 is movable in the other slide groove 120 to drive the first carrier 100 and the second carrier 200 to move relatively. One end of the first driving belt 420 is connected to the first carrier 100, the other end of the first driving belt 420 is fixedly connected to the other end of the flexible screen assembly 300, and the first driving belt 420 is bent (for example, bent by 180 degrees) around the first moving member 140; one end of the second belt 440 is fixedly connected to the first carrier 100, the other end of the second belt 440 is connected to the other end of the flexible screen assembly 300, and the second belt 440 is bent (e.g., bent 180 degrees) around the second moving member 160, so that when the first moving member 140 and the second moving member 160 move to drive the first carrier 100 and the second carrier 200 to move in a direction approaching each other, the first belt 420 moves around the first moving member 140 and the second belt 440 moves around the second moving member 160 to draw the flexible screen assembly 300 to move together.

As shown in connection with fig. 3, flexible screen assembly 300 may include a flexible screen 320 and a support sheet 340. The flexible screen 320 may be understood as a flexible display screen. The supporting sheet 340 may be made of metal, such as a steel sheet, and the supporting sheet 340 is disposed on the non-display surface of the flexible screen 320 to support the flexible screen 320. The other end of the first belt 420 and the other end of the second belt 440 are connected to the supporting plate 340, for example, by welding.

The first and

second belts

420 and 440 may be wire ropes, one end of which is welded to the first carrier 100 and the other end of which is welded to the support sheet 340 of the flexible screen assembly 300). The steel wire rope may have a cylindrical structure, and the steel wire rope having the cylindrical structure may reduce a contact area between the steel wire rope and the first and second moving

members

140 and 160, and further reduce friction force during relative movement between the steel wire rope and the first and second moving

members

140 and 160, and may extend the service lives of the first and

second transmission belts

420 and 440.

It will be appreciated that when the first carrier 100 and the second carrier 200 move in a direction approaching each other, the first driving belt 420 and the second driving belt 440 will pull the flexible screen assembly 300 together and also move in the direction approaching the first carrier 100 and the second carrier 200, so that a portion of the flexible screen assembly 300 can be recycled to the inside of the electronic device 20, thereby reducing the overall size of the electronic device 20. And the first transmission belt 420 and the second transmission belt 440 jointly drag the other end of the flexible screen assembly 300, so that the flexible screen assembly 300 is prevented from being easily damaged due to friction with the first shell 800 of the electronic device 20 during movement. In addition, the embodiment of the present application connects the first driving belt 420 with the first moving member 140 disposed at one side of the first carrier 100, and connects the second driving belt 440 with the second moving member 160 disposed at the other side of the first carrier 100, so that a receiving space may be defined between the first driving belt 420 and the first driving belt 420, and the receiving space may be used to receive other devices of the electronic apparatus 20, such as a battery or a circuit board. The device layout design of the embodiment of the present application may make the devices inside the electronic device 20 more compact, compared to directly disposing the transmission structure and/or the driving structure at the middle position of the electronic device 20.

Referring to fig. 5 to 8, fig. 6 is an enlarged schematic structural diagram of a region a in the electronic device shown in fig. 5, fig. 7 is a schematic structural diagram of a first moving element, a first driving belt and a first driving mechanism in the electronic device shown in fig. 5, and fig. 8 is a schematic structural diagram of an explosion of the first moving element, the first driving belt and the first driving mechanism shown in fig. 7.

The first moving member 140 has a protruding surface with a limiting portion 142, and the first transmission belt 420 is bent and wound around the limiting portion 142 of the first moving member 140. The surface of the second moving member 160 is also provided with a protruding limiting portion 142, and the second belt 440 is bent around the limiting portion 142 of the second moving member 160. When the first moving member 140 and the second moving member 160 move in the sliding slot 120 in a direction in which the first carrier 100 and the second carrier 200 move away from each other, respectively, the flexible screen assembly 300 is pushed away by the second carrier 200, and at this time, the flexible screen assembly 300 pulls the first driving belt 420 and the second driving belt 440 together to move in a direction in which the first carrier 100 and the second carrier 200 move away from each other, the first driving belt 420 moves around the position-limiting portion 142 on the first moving member 140 while moving, the second driving belt 440 moves around the position-limiting portion 142 on the second moving member 160 while moving, and the flexible screen assembly 300 extends a part of the flexible screen assembly 300 from the inside of the electronic device 20 to the outside of the electronic device 20 under the common effect of the second carrier 200, the first driving belt 420 and the first driving belt 420. It will be appreciated that when the flexible screen assembly 300 receives a pushing force applied thereto by the second carrier 200, the first and second driving

belts

420 and 440 gradually reduce the pulling force on the flexible screen assembly 300, such that a portion of the flexible screen assembly 300 is deployed outside of the electronic device 20.

When the first moving member 140 and the second moving member 160 move in the sliding slot 120 toward the direction in which the first carrier 100 and the second carrier 200 approach each other, the limiting portion 142 on the first moving member 140 drives the first transmission belt 420 to move around the limiting portion 142 on the first moving member 140 while moving, the limiting portion 142 on the second moving member 160 drives the second transmission belt 440 to move around the limiting portion 142 on the second moving member 160 while moving, and the first transmission belt 420 and the second transmission belt 440 jointly pull the flexible screen assembly 300 to move while moving, so that a portion of the flexible screen assembly 300 is recovered from the outside of the electronic device 20 to the inside of the electronic device 20. It will be appreciated that without traction by first and

second belts

420, 440, flexible screen assembly 300 may deform into abutment with first housing 800, thereby causing friction between flexible screen assembly 300 and the inner wall of first housing 800 and damaging flexible screen assembly 300.

In some embodiments, one of the limiting portions 142 may be provided with a limiting groove, the first transmission belt 420 may move in one of the limiting grooves, the second transmission belt 440 may move in the other limiting groove, and the limiting groove may limit the first transmission belt 420 and the second transmission belt 440, so that the first transmission belt 420 and the second transmission belt 440 may not be separated from the limiting portion 142 during the movement.

As shown in fig. 6 to 8, a roller 180 may be sleeved on an outer surface of one of the limiting portions 142, and the roller 180 may rotate relative to the limiting portion 142. The first belt 420 may be wound around one roller 180, and the second belt 440 may be wound around the other roller 180. The first driving belt 420 can drive the roller 180 to rotate around the limiting portion 142 in the process of moving around the roller 180, and for the direct rotation around the limiting portion 142, the roller 180 additionally arranged on the limiting portion 142 can reduce friction on the first driving belt 420, so that the first driving belt 420 can move more smoothly, and abrasion of the first driving belt 420 can also be reduced. Similarly, the second belt 440 can drive the other roller 180 to rotate around the other limiting portion 142 in the process of moving around the other roller 180, and compared with the second belt directly rotating around the other limiting portion 142, the additional arrangement of the roller 180 on the other limiting portion 142 can reduce friction on the second belt 440, so that the second belt 440 moves more smoothly, and wear of the second belt 440 can also be reduced.

In order to increase the stability of the first transmission belt 420 and the second transmission belt 440 during the movement process, a limiting groove 182 may be further disposed on the roller 180, the first transmission belt 420 may move in one of the limiting grooves 182, the second transmission belt 440 may move in the other limiting groove 182, and the limiting groove 182 may limit the first transmission belt 420 and the second transmission belt 440, so that the first transmission belt 420 and the second transmission belt 440 may not be separated out of the limiting portion 142 during the movement process.

It should be noted that, in the whole process of driving the flexible screen assembly 300, the interaction among the first moving member 140, the second transmission member 240, the first transmission belt 420 and the second transmission belt 440 is adopted, so that the flexible screen assembly 300 is always in a limited state, or the flexible screen assembly 300 always has the tension of the interaction among the first moving member 140, the second transmission member 240, the first transmission belt 420 and the second transmission belt 440, and it can be understood that the interaction among the first moving member 140, the second transmission member 240, the first transmission belt 420 and the second transmission belt 440 always has a traction force on one end of the flexible screen assembly 300, so as to pull the flexible screen assembly 300 to move. Therefore, the flexible screen assembly 300 cannot be easily deformed due to external force such as bending and curling. Thereby preventing the flexible screen assembly 300 from abutting against housing structures of the electronic device 20, such as the first housing 800, and improving the smoothness of movement of the flexible screen assembly 300. Furthermore, the present embodiment keeps the flexible screen assembly 300 from contacting the housing structure of the electronic device 20, such as the first housing 800, by the traction force during the operation process of the first carrier 100 and the second carrier 200, and also protects the flexible screen assembly 300, thereby prolonging the service life of the flexible screen assembly 300.

The first and second moving

members

140 and 160 may be manually driven to move in the slide groove 120, respectively. Such as applying opposing forces on the first and

second carriers

100 and 200, a force may be applied to the first and second moving

members

140 and 160 to drive the first and second moving

members

140 and 160 to move within the slide slot 120, such that the first and

second carriers

100 and 200 move in a direction away from each other and the flexible screen assembly 300 moves to increase the display area. For example, the first moving member 140 and the second moving member 160 may apply opposite forces to the first moving member 140 and the second moving member 160, and the first moving member 140 and the second moving member 160 may transmit forces to the first driving belt 420 and the second driving belt 440 to drive the first driving belt 420 and the second driving belt 440 to move around the position-limiting portion 142, respectively, so that the first carrier 100 and the second carrier 200 move in a direction to approach each other, and the flexible screen assembly 300 moves to reduce a display area of the flexible screen assembly 300.

The first moving member 140 and the second moving member 160 may be electrically driven to move in the sliding groove 120. If the first moving member 140 and the second moving member 160 are electrically driven to move in the sliding slot 120, the electronic device may further include a driving mechanism, such as a motor, a gear set, and the like.

For example, referring to fig. 5 to 8, the electronic device 20 may further include a first driving mechanism 520 and a second driving mechanism 540, the first driving mechanism 520 is connected to the first moving element 140, the second driving mechanism 540 is connected to the second moving element 160, such as the first driving mechanism 520 may be connected to the fixing portion 144 of the first moving element 140, and the second driving mechanism 540 may be connected to the fixing portion 144 of the second moving element 160. The first driving mechanism 520 may drive the first mover 140 to move, and the second driving mechanism 540 may drive the second mover 160 to move.

The first driving mechanism 520 may include a driving component 522 and a transmission component 524, which are connected to each other, the transmission component 524 is connected to the first moving member 140, the driving component 522 may drive the transmission component 524 to move, and the transmission component 524 drives the first moving member 140 to move together during the movement. The driving assembly 442 may be a combination of one or more of a screw driving assembly, a gear set, or a telescopic assembly. For example, the transmission assembly 524 includes a base 5242, a transmission screw 5244 and a connector 5246, the base 5242 is disposed on the first carrier 100, the transmission screw 5244 is rotatably coupled to the base 5242, e.g., the transmission screw 5244 can be coupled to a bearing embedded in the base 5242, such that the transmission screw 5244 can rotate relative to the base 5242. The drive screw 5244 is also coupled to the drive assembly 522, which drives the drive screw 5244 to rotate relative to the base 5242. The connecting member 5246 is sleeved on the transmission screw 5244, the connecting member 5246 is in transmission connection with the transmission screw 5244, the connecting member 5246 is further connected to the first moving member 140, the connecting member 5246 is driven by the transmission screw 5244 to reciprocate, so as to drive the first moving member 140 to reciprocate, when the first moving member 140 reciprocates, the second carrier 200 reciprocates along with the first moving member 140, and when the first carrier 100 and the second carrier 200 are driven by the first driving mechanism 520 and the second driving mechanism 540 to move relatively, the flexible screen assembly 300 can move together.

In the related art, a flexible display screen is fixed by fixing one end of the flexible display screen and winding the other end of the flexible display screen on a reel in a curling manner, and when the two shells move relative to each other, the flexible display screen is released or wound through rotation of the reel. It will be appreciated that the relative movement of the two housings and the movement of the flexible screen assembly of the related art are driven separately, and there may be instances where the drive of the two is not synchronised such that the relative movement of the two housings and the movement of the flexible screen assembly are not synchronised. The flexible screen assembly 300 of the embodiment of the present application is disposed around the second carrier 200, and both ends of the flexible screen assembly 300 are connected to the first carrier 100, so that when the first carrier 100 and the second carrier 200 are driven by the first driving mechanism 520 and the second driving mechanism 540 to move, the flexible screen assembly 300 is driven to move together, and compared with the related art, the consistency between the relative movement of the two carriers and the movement of the flexible screen assembly 300 can be improved, and the damage to the flexible screen assembly 300 caused by the asynchronous movement of the two carriers and the flexible screen assembly can be reduced.

The base 5242 is further provided with a groove 5242a, and a connecting piece 5246 is arranged on the drive screw 5244 and positioned in the groove 5242a, wherein the groove 5242a can play a role of guiding and positioning the movement of the connecting piece 5246.

It can be understood that, the driving assembly 522 in the embodiment of the present application provides an active driving effect, the first moving member 140 and the first driving belt 420 are a combined driven mechanism, and perform linkage motion under the active driving of the driving assembly 522, so that the moving distance of the first moving member 140, the moving distance of the first driving belt 420 and the expansion length or the recovery length of the flexible screen assembly 300 are equal, and further it is ensured that the flexible screen assembly 300 is in a constantly tightened state (it is ensured that the tension of the flexible screen assembly 300 is within a certain range) in the expansion process and the recovery process, and abnormal situations such as too large tension damage of the flexible screen assembly 300 or too small tension wrinkles of the flexible screen assembly 300 caused by asynchronous expansion can be avoided.

Referring to fig. 9, fig. 9 is a schematic structural view of the first moving element, the first driving belt, and the connecting member of the first driving mechanism shown in fig. 8. The connecting member 5246 is provided with a through hole 5246a, and the wall of the through hole 5246a is provided with a transmission thread, which is engaged with the thread on the transmission screw 5244, so that the transmission screw 5244 rotates to drive the connecting member 5246 to move linearly along a direction parallel to the first carrier 100 through the transmission thread on the through hole 5246 a. It will be appreciated that rotation of the drive screw 5244 can be translated into linear movement of the connector 5246. The connecting member 5246 is further provided with a locking groove 5246b, and the locking groove 5246b is locked with the fixing portion 144 so as to connect the connecting member 5246 with the first moving member 140. Of course, the connection between the connection member 5246 and the first motion member 140 can be achieved in other manners (e.g., welding, bonding, etc.).

Referring to fig. 7 and 8, the driving assembly 522 may include a first driving module 5222 and a first deceleration module 5224, the first driving module 5222 is connected to the first deceleration module 5224, and the first deceleration module 5224 is in transmission connection with the transmission screw 5244. For example, the first deceleration module 5224 can be a reduction gearbox that is coaxially coupled to the first drive module, and the reduction gearbox can decelerate the first drive module 5222 to increase torque. The first reduction module 5224 can be connected to the drive screw 5244 through a gear set, for example, an output shaft of the first reduction module 5224 is connected to the first gear 562, the drive screw 5244 is connected to the second gear 564, and the second gear 564 and the first gear 562 are engaged with the third gear 566 to realize the driving connection between the first reduction module 5224 and the drive screw 5244.

Fig. 10 is a schematic view showing a second structure of the first moving member, the first belt, and the first driving mechanism of fig. 8, as shown in fig. 10. In order to further increase the output power of the driving assembly 522 to increase the output thrust of the transmission screw 5244 and the connecting member 5246, the driving assembly 522 of the present embodiment may further include a second driving module 5226 and a second speed reducing module 5228, which are connected to each other, and the second speed reducing module 5228 is in transmission connection with the first speed reducing module 5224. For example, the second speed reducing module 5228 is provided with a fourth gear 568, and the first gear 562 and the fourth gear 568 of the second speed reducing module 5228 are meshed with the fifth gear 569 so as to realize the transmission connection between the second speed reducing module 5228 and the first speed reducing module 5224. The fourth gear 568 on the second reduction module 5228 transfers torque through the fifth gear 569 to the first gear 562 of the first reduction module 5224, and the output torques of the two reduction modules are superimposed. The superimposed torque is transmitted to the drive screw 5244 through the second gear 564, thereby driving the drive screw 5244 to rotate. Compared with the case that only one driving module and one speed reducing module are provided, the thrust generated by the transmission screw rod 5244 and the connecting piece 5246 can be increased by about 80% by the two driving modules and the two speed reducing modules adopted in the embodiment of the application.

It should be noted that the 4 gear pairs consisting of the first gear 562, the third gear 566, the fourth gear 568 and the fifth gear 569 are all semi-rigidly connected. It will be appreciated that at least one of the gears in each gear pair is made of a material having a relatively low modulus of elasticity (e.g., plastic) to avoid the impact problem caused by microscopic asynchrony.

Referring to fig. 11, fig. 11 is a schematic structural diagram of a third structure of the first moving element, the first transmission belt, and the first driving mechanism in the first driving mechanism shown in fig. 8. The driving assembly 522 may also include two driving modules and one speed reducing module, for example, the driving assembly 522 may include a first driving module 5222, a first speed reducing module 5224 and a second driving module 5226, the first driving module 5222 and the second driving module 5226 are connected in series, and the first speed reducing module 5224 may be coaxially connected with the first driving module 5222 or the second driving module 5226. For example, a drive shaft of the first drive module 5222 and a drive shaft of the second drive module 5226 are connected by a coupling 5229 such that the first drive module 5222 and the second drive module 5226 are connected in series. After the two driving modules are connected in series, the speed is reduced through the first speed reducing module 5224, the torque is increased, and the first speed reducing module 5224 synchronously drives the transmission screw 5244 to rotate through the first gear 562 and the second gear 564. The coupler 5229 is made of a material (e.g., plastic) with a small elastic modulus, so that the acting force generated by the small asynchronism when the two driving modules are started can be absorbed by the elastic coupler 5229. At this time, the output terminal of the first driving module 5222 is connected to the input terminal of the second driving module 5226.

Referring to fig. 12 and 13, fig. 12 is a schematic diagram of a partially exploded structure of the first driving mechanism shown in fig. 11, and fig. 13 is a schematic diagram of a coupling structure in the first driving mechanism shown in fig. 11. The drive shaft of the first drive module 5222 and the drive shaft of the second drive module 5226 are each configured as a semi-cylindrical structure, and have a substantially D-shaped cross section. The coupler 5229 is provided with a connecting hole 5229a, the shape of the connecting hole 5229a is matched with the structures of the driving shaft of the first driving module 5222 and the driving shaft of the second driving module 5226, and the size of the connecting hole 5229a is slightly larger than the size of the driving shaft of the first driving module 5222 and the driving shaft of the second driving module 5226, so that the driving shaft of the first driving module 5222 and the driving shaft of the second driving module 5226 penetrate into the connecting hole 5229a, and a gap exists between the coupler 5229 and the driving shaft of the first driving module 5222 and the driving shaft of the second driving module 5226, and the gap can absorb the acting force generated by slight asynchronization when the two driving modules are started.

In some embodiments, the first drive module 5222 and the second drive module 5226 can also be connected in series and then engaged with a reduction gear via gears to interconnect the two drive modules and one reduction module. At this time, the input terminal of the first driving module 5222 is connected to the input terminal of the second driving module 5226, i.e., the first driving module 5222 and the second driving module 5226 are connected in series.

The structure of the second driving mechanism 540 may be the same as that of the first driving mechanism 520, for example, the second driving mechanism 540 may also include a driving component 542 and a transmission component 544, which are connected to each other, the transmission component 544 is connected to the second moving member 160, the driving component 542 may drive the transmission component 544 to move, and the transmission component 544 drives the second moving member 160 to move together during the movement. The driving assembly 542 and the transmission assembly 544 in the second driving mechanism 540 may be any one of the driving assemblies and the transmission assemblies described above, and details thereof are not repeated herein. For example, the drive assembly 542 can include a first drive module 5422 and a first deceleration module 5424 coupled to one another. The first drive module 5422 and the first drive module 5222 of the first drive mechanism 520 are identical in structure, and the first deceleration module 5424 and the first deceleration module 5224 of the first drive mechanism 520 are identical in structure. Of course, the second driving mechanism 540 may have a structure different from that of the first driving mechanism 520, for example, the second driving mechanism 540 may be a gear set transmission or other transmission, and is not limited to the screw transmission.

Referring to fig. 5 and 7, the first carrier 100 is provided with a plurality of first plugging portions 110, a first slot 130 is disposed between two adjacent first plugging portions 110, the second carrier 200 is provided with a plurality of second plugging portions 210, a second slot 230 is disposed between two adjacent second plugging portions 210, when the first carrier 100 and the second carrier 200 are connected, the first plugging portion 110 is accommodated in the second slot 230 and the first plugging portion 110 can move in the second slot 230, and the second plugging portion 210 is accommodated in the first slot 130 and the second plugging portion 210 can move in the first slot 130.

Referring to fig. 5, the second carrier 200 further has a limiting member 220, and the flexible shield assembly 300 is bent (e.g. bent 180 degrees) around the limiting member 220. When the first moving member 140 and the second moving member 160 move to drive the first carrier 100 and the second carrier 200 to move in the direction away from each other, the limiting member 220 follows the second carrier 200 to move in the direction away from each other, and the limiting member 220 moves while pushing the flexible screen assembly 300 to move toward the outside of the electronic device 20, so as to implement the unfolding function of the flexible screen assembly 300. The limiting member 220 may be in a regular shape, such as a cylinder structure or a semi-cylinder structure, and the limiting member 220 may also be in an irregular shape, for example, one surface of the limiting member 220 may be an arc surface, and the rest surfaces may be surfaces of a straight structure or a wave structure. The limiting member 220 may be an additional component independent from the second carrier 200, and the limiting member 220 may also be a part of the second carrier 200.

As shown in fig. 14, fig. 14 is a schematic structural diagram of a limiting element in the electronic device shown in fig. 3. The position-limiting element 220 may include a rotating shaft 222 and a roller 224, wherein the roller 224 is disposed on an outer surface of the rotating shaft 222 and is rotatably connected to the rotating shaft 222 (e.g., via a ball joint), so that the roller 224 can rotate around the rotating shaft 222. The flexible screen assembly 300 is wound around the roller 224, and the flexible screen assembly 300 can drive the roller 224 to rotate around the rotating shaft 222 while moving, so that the friction force between the flexible screen assembly 300 and the limiting part 220 can be reduced, the service life of the flexible screen assembly 300 can be prolonged, and the flexible screen assembly 300 can move more smoothly.

The following illustrates, for example, the first carrier 100 and the second carrier 200 of the electronic device 20 moving relative to each other to move the flexible screen assembly 300 and thus change the display area of the flexible screen assembly 300. Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 6, and fig. 7, fig. 1, fig. 3, and fig. 6 illustrate the first carrier 100 and the second carrier 200 of the electronic device 20 in a folded state. The first carrier 100 and the second carrier 200 may be driven to move away from each other in an electromotive driving manner to switch to the unfolded state, and fig. 2, 4 and 7 illustrate the first carrier 100 and the second carrier 200 of the electronic device 20 in the unfolded state.

The first driving module 5222 is decelerated by the first deceleration module 5224 to increase torque, the transmission screw 5244 is driven to rotate by the first gear 562 and the second gear 564, the connecting member 5246 connected to the transmission screw 5244 converts the rotational motion of the transmission screw 5244 into a linear motion, the connecting member 5246 is matched with the first moving member 140 (the second moving member 160) to drive the second carrier 200 to move together, and the first moving member 140 and the second moving member 160 drive the second inserting portion 210 and the limiting member 220 mounted on the second carrier 200 to move when moving. In the process of moving the second carrier 200, the position-limiting member 220 pushes the flexible screen assembly 300 to move outward, i.e. the flexible screen assembly 300 is unfolded. When the driving of the first driving module 5222 is reversed, the first moving element 140 and the second moving element 160 move to drive the first carrier 100 and the second carrier 200 to move toward a direction close to each other, at this time, the first plugging portion 110 disposed on the first carrier 100 moves toward a direction close to the position-limiting element 220, and the connecting element 5246 disposed on the driving screw 5244 moves away from the position-limiting element 220, and the moving speeds of the two elements are the same and the directions are opposite. The first driving belt 420 connected to the first moving member 140 and the second driving belt 440 connected to the second moving member 160 respectively switch the moving direction through the roller 180, and pull the supporting piece 340 in the flexible screen assembly 300, so that the speed of the supporting piece 340 in the flexible screen assembly 300 moving in the direction away from the position-limiting member 220 is the same as the speed of the first inserting portion 110 moving in the direction close to the position-limiting member 220, and when the first moving member 140 and the second moving member 160 are folded to the first preset position, the flexible screen 320 is also brought to the second preset position by the supporting piece 340, thereby implementing the folding function of the flexible screen assembly 300.

It should be noted that the number of the moving elements may be one, and the number of the transmission belts may also be one, for example, one side of the second carrier 200 is provided with the first moving element 140, and the other side of the second carrier 200 is not provided with the moving element. The first mover 140 is connected to the first belt 420, and the structure and connection relationship with other structures of the first mover 140 and the structure and connection relationship with other structures of the first belt 420 are as described above. When the first mover 140 moves to drive the first and

second carriers

100 and 200 to move in the direction to approach each other, the first belt 420 moves around the first mover 140 to pull the flexible screen assembly 300 to move.

As shown in fig. 6, fig. 7 and fig. 15, fig. 15 is a schematic diagram of a second structure of a part of the electronic device shown in fig. 2. The first driving mechanism 520 is disposed at one side of the first carrier 100, the second driving mechanism 540 is disposed at the other side of the first carrier 100 and spaced apart from the first driving mechanism 520, and a receiving space 150 may be defined between the first driving mechanism 520 and the second driving mechanism 540 to receive a predetermined device of the electronic apparatus 20. First drive mechanism 520 and second drive mechanism 540 are configured to cooperatively drive first carrier 100 and second carrier 200 relative to each other to move flexible screen assembly 300. The preset device may include a battery 600, the battery 600 may be accommodated in the accommodating space 150, and the setting positions of the first driving mechanism 520 and the second driving mechanism 540 according to the embodiment of the present disclosure may allow more space to be reserved inside the electronic device 20 for setting the preset device. The electronic device 20 may further include a circuit board 700, the circuit board 700 includes a first protruding portion 720 and a second protruding portion 740 which are arranged at an interval, the first protruding portion 720 and the second protruding portion 740 are located in the receiving space 150, one end of the first protruding portion 720 is arranged adjacent to the first driving module 5222 of the first driving mechanism 520, and the height of the first driving module 5422 is greater than that of the first protruding portion 720, so as to reserve a space in the first protruding portion 720 for installing other devices (such as a semiconductor, a capacitor, a resistor, or the like) of the electronic device 20. One end of the second protrusion 740 is disposed adjacent to the first driving module 5422 of the second driving mechanism 540 and the height of the first driving module 5422 is greater than that of the second protrusion 740, so as to reserve a space in the second protrusion 740 for mounting other devices (such as a semiconductor, a capacitor, or a resistor) of the electronic apparatus 20. A part of the battery 600 is positioned between the first and

second protrusions

720 and 740, and another part of the battery 600 is positioned between the first and

second driving modules

5222 and 5422 of the first and

second driving mechanisms

520 and 540. The arrangement positions of the first driving mechanism 520 and the second driving mechanism 540 according to the embodiment of the present application can reserve more space inside the electronic device 20 for arranging the predetermined device, and the first driving mechanism 520 and the first protrusion 720 are arranged adjacent to each other, and the second driving mechanism 540 and the second protrusion 740 can also facilitate the electrical connection between the first driving mechanism 520 and the circuit board 700 and between the second driving mechanism 540 and the circuit board 700, so as to avoid the situation that the electrical connection line is too long or too tortuous due to too long distance between the circuit board 700 and the first driving mechanism 520 and the second driving mechanism 540.

As shown in fig. 16, fig. 16 is a third schematic structural diagram of an electronic device according to an embodiment of the present application. Electronic device 20 may control flexible screen assembly 300, first drive mechanism 520, and second drive mechanism 540, for example, electronic device 20 may control flexible screen assembly 300, first drive mechanism 520, and second drive mechanism 540 via processor 800, processor 800 being a control hub for electronic device 20, connecting various portions of electronic device 20 throughout using various interfaces and lines, performing various functions of electronic device 20 and processing data by running or invoking computer programs stored in memory, and invoking data stored in memory. Processor 800 is electrically connected to flexible screen assembly 300, first driving mechanism 520, and second driving mechanism 540, respectively, so that processor 800 can control flexible screen assembly 300, first driving mechanism 520, and second driving mechanism 540, for example, processor 800 can control first driving mechanism 520 and/or second driving mechanism 540 to simultaneously drive first carrier 100 and second carrier 200 to move in a direction approaching to or departing from each other, and first carrier 100 and second carrier 200 can drive flexible screen assembly 300 to move together during the movement. For another example, processor 800 may also control the length of extension or retraction of flexible screen assembly 300 by controlling the distance of movement between first carrier 100 and second carrier 200 by first drive mechanism 520 and second drive mechanism 540. It should be noted that the electronic device 20 may also control the flexible screen assembly 300, the first driving mechanism 520, and the second driving mechanism 540 through other devices, for example, through additional control mechanisms, or through software.

Referring to fig. 17 to 20, fig. 17 is a second partial structure diagram of the electronic device shown in fig. 1, fig. 18 is an enlarged structure diagram of a region B in the electronic device shown in fig. 16, and fig. 19 is a structure diagram of a magnetic encoder in the region B in fig. 18. Electronic device 20 also includes one or more detection mechanisms that may be configured to detect the drive mechanism of electronic device 20, such as one or more detection mechanisms that may be configured to detect first drive mechanism 520 and second drive mechanism 540. For example, the electronic device 20 may include a first detection mechanism 920 and a second detection mechanism 940, the first detection mechanism 920 is disposed opposite to the first driving mechanism 520, the first detection mechanism 920 is configured to detect an operation state of the first driving mechanism 520 within a preset time period to obtain a first detection value, such as the first detection mechanism 920 may detect the operation state of the first driving mechanism 520 within a time period from T1 to T2 to obtain the first detection value, wherein the first detection value may be one or more of parameters of a driving power, a driving rate, a driving force, and the like of the first driving mechanism 520. Likewise, a second detection mechanism 940 is disposed opposite to the second driving mechanism 540, the second detection mechanism 940 is configured to detect the operating state of the second driving mechanism 540 within a preset time period to obtain a second detection value, such as the second detection mechanism 940 may detect the operating state of the second driving mechanism 540 within a time period T1-T2 to obtain the second detection value, and the second detection value may be one or more of the parameters of the driving power, the driving speed, the driving force, and the like of the second driving mechanism 540. The parameter of the second detection value may be the same as or different from the parameter of the first detection value.

The processor 800 may be configured to adjust the first driving mechanism 520 and/or the second driving mechanism 540 according to the first detection value and the second detection value, so as to enable the adjusted first driving mechanism 520 and second driving mechanism 540 to be in the preset working state, for example, the processor 800 may adjust the driving rate of the first driving mechanism 520, so as to enable the driving rate of the first driving mechanism 520 to be the same as the driving rate of the second driving mechanism 540, so that the first driving mechanism 520 and the second driving mechanism 540 synchronously drive the first carrier 100 and the second carrier 200 to move in the directions approaching to or departing from each other. It will be appreciated that if the first and

second drives

520, 540 drive the first and

second carriers

100, 200 out of phase, the second carrier 200 may deflect during movement relative to the first carrier 100, thereby causing the flexible screen assembly 300 to wrinkle and become damaged. According to the embodiment of the application, by arranging the detection mechanism, the working states of the first driving mechanism 520 and the second driving mechanism 540 are detected, and the first driving mechanism 520 and the second driving mechanism 540 are adjusted according to the detection result, so that the first driving mechanism 520 and the second driving mechanism 540 synchronously drive the first carrier 100 and the second carrier 200 to move relatively, and further the second carrier 200 is prevented from deviating in the process of moving relative to the first carrier 100, and therefore it can be ensured that the flexible screen assembly 300 can be smoothly unfolded to the outside of the electronic device 20 or retracted into the electronic device 20, the damage risk of the flexible screen assembly 300 is reduced, and the service life of the flexible screen assembly 300 is prolonged.

The following describes an operation process of the processor 800 from the perspective of a control method, and as shown in fig. 20, fig. 20 is a flowchart illustrating the control method of the electronic device according to the embodiment of the present application.

And 11, detecting the parameter of the first driving mechanism in a preset time period through a first detection mechanism to obtain a first detection value, and detecting the parameter of the second driving mechanism in the preset time period through a second detection mechanism to obtain a second detection value.

The processor 800 may control the first detecting mechanism 920 to be activated, and detect the operating state of the first driving mechanism 520 after the first detecting mechanism 920 is activated, so as to detect the parameter of the first driving mechanism 520 in the time period T1-T2 to obtain a first detected value. For example, the first detecting mechanism 920 may include a magnetic encoder, the magnetic encoder includes a detecting element 922 and a magnetic element 924, the detecting element 922 and the magnetic element 924 are separately disposed, the detecting element 922 is disposed on the first carrier 100, the magnetic element 924 is fixed at an end of the transmission screw 5244, for example, one end of the transmission screw 5244 may be provided with a fixing element 5248, the fixing element 5248 is provided with a groove, the magnetic element 924 may be disposed in the groove and fixedly connected with the fixing element 5248 (which may be implemented by interference fit of the groove with the magnetic element 924, or implemented by other manners such as adhesion or welding), and a groove wall of the groove is surrounded on a periphery of the magnetic element 924 to protect the magnetic element 924. When the driving assembly 522 drives the transmission screw 5244 to rotate, the magnetic member 924 disposed on the transmission screw 5244 may rotate together with the transmission screw 5244, and the detecting member 922 may be configured to detect the magnetic variation of the magnetic member 924 in the time period T1-T2 to obtain a first rotation angle value, although the detecting member 922 may also be configured to detect other operating parameters of the magnetic member 924 in the time period T1-T2, such as the rotation speed.

As shown in fig. 19, the central axis of the detecting member 922 overlaps the central axis of the magnetic member 924, but the central axis of the detecting member 922 may not overlap the central axis of the magnetic member 924 within an error range of-0.15 mm to 0.15 mm. It will be appreciated that the offset between the central axis of the sensing member 922 and the central axis of the magnetic member 924 may be between-0.15 mm and 0.15 mm.

It should be noted that the detecting member 922 and the magnetic member 924 can also be integrally assembled into a unitary structure, and the detecting member 922 and the magnetic member 924 are disposed on the transmission screw 5244 at the same time.

The processor 800 may control the second detection mechanism 940 to be activated together with the first detection mechanism 920, and the second detection mechanism 940 detects the operating state of the second driving mechanism 540 after being activated, so as to detect the parameter of the second driving mechanism 540 in the time period T1-T2 to obtain a second detection value. Here, the structure of the second detection mechanism 940 may be the same as that of the first detection mechanism 920, that is, the second detection mechanism 940 may also include a detection member (such as the detection member 942) and a magnetic member (such as the magnetic member 944), and the magnetic member 944 may be disposed on the transmission screw of the second driving mechanism 540 so that the magnetic member 944 may rotate along with the transmission screw of the second driving mechanism 540. The detecting element 942 may be utilized to detect the amount of change in magnetism of the magnetic element 944 during the time period T1-T2 to obtain a second value of the rotation angle.

And 12, comparing the first detection value with the second detection value to obtain a difference value.

For example, the processor 800 may compare the first rotation angle value and the second rotation angle value to obtain a difference between the first rotation angle value and the second rotation angle value, so as to obtain a difference value between the two rotation angle values.

And 13, judging whether the difference value is larger than a threshold value.

The processor 800 obtains a difference value between the first detection value and the second detection value and determines whether the difference value is greater than a threshold value. The threshold value is a preset value, and may be set, for example, according to an out-of-synchronization error that is allowed to exist between the two drive mechanisms. For example, the processor 800 may determine whether a difference value between the first rotation angle value and the second rotation angle value is greater than a threshold value.

And 14, if the difference value is greater than the threshold value, adjusting the first driving mechanism and/or the second driving mechanism so that the adjusted first driving mechanism and second driving mechanism synchronously drive the first carrier and the second carrier to move in the directions close to or away from each other.

If the processor 800 determines that the difference between the first detection value and the second detection value is greater than the threshold, the control parameter of the first driving mechanism 520 may be adjusted (for example, the rotation speed of the first driving module 5222 and/or the rotation speed of the second driving module 5226 may be adjusted), so that the adjusted first driving mechanism 520 and the adjusted second driving mechanism 540 may synchronously drive the first carrier 100 and the second carrier 200 to move relatively. Alternatively, the processor 800 may adjust the control parameter of the second driving mechanism 540 when the difference between the first detection value and the second detection value is greater than the threshold value. Alternatively, the processor 800 may adjust both the control parameter of the first driving mechanism 520 and the control parameter of the second driving mechanism 540 when the difference between the first detection value and the second detection value is greater than the threshold value.

The first detection mechanism 920 further includes a displacement sensor, which may be an optical displacement sensor, a linear proximity sensor, or an ultrasonic displacement sensor. The displacement sensor detects the state of the connection 5246 on the first driving mechanism 520 to detect whether the connection 5246 on the first driving mechanism 520 is displaced (or moved), and the processor 800 may be configured to adjust the control parameter of the driving component of the first driving mechanism 520 and/or the control parameter of the driving component of the second driving mechanism 540 according to the first rotation angle value and the second rotation angle value when the displacement sensor detects that the connection 5246 on the first driving mechanism 520 is displaced, so that the adjusted first driving mechanism 520 and second driving mechanism 540 are in the preset operating state, for example, the adjusted first driving mechanism 520 and second driving mechanism 540 may drive the first carrier 100 and the second carrier 200 to move synchronously.

It is understood that when the driving screw 5244 rotates, the connecting member 5246 may not be displaced (for example, the connection between the driving screw 5244 and the connecting member 5246 fails), and the absence of the displacement of the connecting member 5246 may not cause the relative movement between the first carrier 100 and the second carrier 200, and at this time, if the processor 800 continues to adjust the first driving mechanism 520 and/or the second driving mechanism 540, it may not only be able to regulate the movement relationship between the first carrier 100 and the second carrier 200, but also accelerate the power consumption of the electronic device 20. This application can improve detection precision and reliability of first detection mechanism 920 to the operating condition of first actuating mechanism 520 through mutually supporting of displacement sensor and magnetic encoder to increase adjustment precision and reliability of treater 800 to first actuating mechanism 520. Wherein, the number of the displacement sensors may be one or more, when the number of the displacement sensors is plural, the plurality of displacement sensors may be disposed on the first carrier 100 at intervals, and the detection of the plurality of displacement sensors together may improve the detection accuracy of the displacement distance of the connection member 5246 of the first driving mechanism 520 compared to one displacement sensor. Of course, a portion of the plurality of displacement sensors may be used to detect the connection 5246 of the first drive mechanism 520, and another portion of the plurality of displacement sensors may be used to detect the connection 5246 of the second drive mechanism 540.

In some embodiments, the second detection mechanism 940 can also include one or more displacement sensors, and the displacement sensors in the second detection mechanism 940 can be used to detect the connection 5246 of the second drive mechanism 540.

Of course, the number of the driving mechanisms may be greater than or equal to three, and when the number of the driving mechanisms is multiple, the processor 800 may adjust the operating parameters of the multiple driving mechanisms, for example, when the number of the driving mechanisms is odd, the median of the multiple detection values may be calculated, and the operating parameters of the multiple driving mechanisms may be all adjusted to the median, or of course, the average of the multiple detection values may be calculated, and the operating parameters of the multiple driving mechanisms may be all adjusted to the average. When the number of the driving mechanisms is even, the average value of the plurality of detection values can be calculated, and the operating parameters of the plurality of driving mechanisms can be adjusted to the average value.

In some embodiments, the number of the driving mechanisms may also be one, for example, the electronic device 20 may only include the first driving mechanism 520, and correspondingly, the number of the detecting mechanisms may also be one, for example, the electronic device 20 may only include the first detecting mechanism 920, the first detecting mechanism 920 is configured to detect an operating state of the first driving mechanism 920 within a preset time period to obtain a first detection value, and the processor 800 may adjust the first driving mechanism 520 according to the first detection value, so that the adjusted first driving mechanism 520 is in the preset operating state. The preset operating state may be a preset operating state, for example, the operating state of the first driving mechanism 520 with the driving speed M may be controlled, so that the flexible screen assembly 300 expands or contracts at the speed M; alternatively, the operating state in which the driving power of the first driving mechanism 520 is N may be controlled. It should be noted that "first" and "second" are merely used to distinguish different driving mechanisms, and do not have a specific reference relationship.

In some embodiments, the number of the driving mechanisms may be multiple, and the number of the detecting mechanisms may be one. For example, a plurality of detecting members can be packaged together in one detecting mechanism, and one detecting mechanism can detect different driving mechanisms through different detecting members in the detecting mechanism so as to detect a plurality of detecting values.

It should be noted that the drawing manner of the electronic device 20 is not limited thereto. For example, please refer to fig. 21 and 22, wherein fig. 21 is a fourth structural schematic diagram of the electronic device according to the embodiment of the present application, and fig. 22 is a fifth structural schematic diagram of the electronic device according to the embodiment of the present application. The electronic device such as the electronic device 40 provided by the embodiment of the present application may be drawn in a lateral direction, the electronic device 40 may include a first carrier 41, a second carrier 42 and a flexible screen assembly 43, the first carrier 41 and the second carrier 42 are used for carrying the electronic device 40 together, and the first carrier 41 and the second carrier 42 may move relatively to enable a portion of the flexible screen assembly 43 to be unfolded outside the electronic device 40 or folded inside the electronic device 40. Here, the lateral drawing refers to a manner of drawing in a direction parallel to the display direction of the flexible screen assembly 43.

The electronic device and the control method thereof provided by the embodiment of the present application are described in detail above. The principles and embodiments of the present application are described herein using specific examples, which are presented only to aid in the understanding of the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. An electronic device, comprising:

a first carrier;

a second carrier movable relative to the first carrier such that the first carrier and the second carrier are in an expanded state or a collapsed state;

two driving mechanisms configured to drive the first carrier and the second carrier to move in a direction approaching or departing from each other, and the first carrier and the second carrier move relatively to drive the flexible screen assembly to move together;

the detection device comprises two detection mechanisms, wherein one detection mechanism is used for detecting the working state of one driving mechanism in a preset time period to obtain a first detection value, the other detection mechanism is used for detecting the working state of the other driving mechanism in the preset time period to obtain a second detection value, so that one or two driving mechanisms can be adjusted according to the first detection value and the second detection value, and the two adjusted driving mechanisms synchronously drive the first carrier and the second carrier to move in the direction of approaching to or separating from each other.

2. The electronic device of claim 1, further comprising a processor electrically connected to the driving mechanism and the detecting mechanism, respectively, wherein the processor is configured to adjust the driving mechanism according to the detected value, so that the adjusted driving mechanism is in a preset working state.

3. The electronic device of claim 1, wherein the driving mechanism comprises a driving component and a transmission screw rod which are in transmission connection, the driving component is configured to drive the transmission screw rod to rotate, and the detecting mechanism comprises a magnetic encoder for detecting a rotation angle value of the transmission screw rod within a preset time period.

4. The electronic device of claim 3, wherein the magnetic encoder includes a magnetic member and a detecting member, the magnetic member is disposed on the transmission screw rod so that the magnetic member can rotate along with the transmission screw rod, the detecting member detects a variation of a magnetic field of the magnetic member to obtain the rotation angle value, and the driving mechanism adjusts the control parameter of the driving assembly according to the rotation angle value so that the driving mechanism is in a preset operating state.

5. The electronic device according to claim 4, wherein the first carrier is provided with a sliding slot and a moving member, the moving member is movable in the sliding slot, the moving member is connected to the second carrier, the driving mechanism further comprises a connecting member, the connecting member is sleeved on the transmission screw rod and is in transmission connection with the transmission screw rod, and the connecting member is connected to the moving member;

when the driving assembly drives the transmission screw rod to rotate, the transmission screw rod drives the connecting piece and the moving piece to move along the direction parallel to the transmission screw rod.

6. The electronic device of claim 5, wherein the detection mechanism further comprises one or more displacement sensors disposed on the first carrier, the one or more displacement sensors configured to detect whether the connector is displaced;

when the magnetic part rotates along with the transmission screw rod and the connecting part displaces, the driving assembly can adjust the control parameters of the driving assembly according to the rotating angle value.

7. The electronic device according to any one of claims 1 to 6, wherein the two driving mechanisms are spaced apart from each other to define a receiving space between the two driving mechanisms, and the receiving space is used for arranging a preset device of the electronic device.

8. The electronic device according to any one of claims 3 to 6, wherein a fixing member is disposed at an end of the driving screw, the fixing member is disposed with a groove, and the magnetic member is disposed in the groove and fixedly connected to the fixing member.

9. The electronic device of claim 5 or 6, wherein the moving member is provided with a limiting portion, the electronic device further comprises a transmission belt, the transmission belt is bent and wound on the limiting portion, one end of the transmission belt is connected with the first carrier, and the other end of the transmission belt is connected with the flexible screen assembly;

when the moving part moves to drive the first carrier and the second carrier to move towards the mutually approaching direction, the transmission belt moves around the limiting part and pulls the flexible screen assembly to move.

10. The control method of the electronic equipment is characterized in that the electronic equipment comprises a first carrier, a second carrier, a flexible screen assembly, a first driving mechanism, a second driving mechanism, a first detection mechanism and a second detection mechanism, wherein the first carrier and the second carrier can move relatively, the flexible screen assembly is wound on the second carrier, the first end and the second end of the flexible screen assembly are connected with the first carrier, the first driving mechanism is arranged on one side of the first carrier, the second driving mechanism is arranged on the other side of the first carrier, the other side of the first carrier is arranged opposite to one side of the first carrier, and the first driving mechanism and the second driving mechanism are used for driving the first carrier and the second carrier to move in a direction of approaching to or leaving from each other;

the method comprises the following steps:

detecting the working state of the first driving mechanism in a preset time period through the first detection mechanism to obtain a first detection value, and detecting the working state of the second driving mechanism in the preset time period through the second detection mechanism to obtain a second detection value;

judging whether the difference value is larger than a threshold value or not;

11. The method according to claim 10, wherein each of the first driving mechanism and the second driving mechanism includes a driving component and a driving screw, and the driving component is configured to drive the driving screw to rotate so that a magnetic member provided on the driving screw rotates along with the driving screw; the first detection mechanism and the second detection mechanism both comprise magnetic encoders, each magnetic encoder comprises a detection piece and a magnetic piece, the magnetic piece of the first detection mechanism is arranged on the transmission screw rod of the first driving mechanism, and the magnetic piece of the second detection mechanism is arranged on the transmission screw rod of the second driving mechanism;

the first detection value is a first rotation angle value, the second detection value is a second rotation angle value, and the step of detecting the working state of the first driving mechanism within a preset time period through the first detection mechanism to obtain the first detection value and detecting the working state of the second driving mechanism within the preset time period through the second detection mechanism to obtain the second detection value comprises the steps of:

through the detection piece of first detection mechanism detects the magnetism variation of first detection mechanism's magnetic part is in order to obtain the first rotation angle value of first actuating mechanism's drive screw in the time quantum of predetermineeing, and pass through the detection piece of second detection mechanism detects the magnetism variation of second detection mechanism's magnetic part is in order to obtain the second rotation angle value of second actuating mechanism's drive screw in the time quantum of predetermineeing.