Electronic devices

Abstract

The present application discloses an electronic device. The electronic device comprises: a first frame; a second frame, which can move relative to the first frame; a flexible screen, wherein the first end of the flexible screen is connected to the first frame; a rotating shaft, which is connected to the second frame, and the second end of the flexible screen passes around the rotating shaft; a pulley assembly, which is arranged on the first frame; a connecting member, wherein the first end of the connecting member is connected to the first frame, and the second end of the connecting member passes around the pulley assembly; an elastic member, wherein the first end of the elastic member is connected to the second end of the flexible screen, and the second end of the elastic member is connected to the second end of the connecting member; wherein, in the process of the second frame moving relative to the first frame, the pulley assembly moves with the second frame, and the connecting member moves around the pulley assembly to keep the length of the elastic member unchanged.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to an electronic equipment. Background Art

[0002] With the rapid development of the electronics industry, users have put forward higher requirements for mobile smart terminal devices. In pursuit of the ultimate experience of large screens and the convenience of carrying, curved screen devices came into being.

[0003] In the related technology, a spring for pulling the flexible screen is provided in the roll-up screen device. However, during use, the spring will frequently expand and contract as the screen is unfolded and retracted, so that the spring is prone to fatigue failure, affecting the service life of the product. Summary of the invention

[0004] The present application aims to provide an electronic device, which at least solves the technical problem in the related art that elastic parts inside the electronic device fail due to frequent expansion and contraction fatigue and the elastic parts have a short life.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] The present application provides an electronic device, which includes: a first frame; a second frame capable of moving relative to the first frame; a flexible screen, wherein the first end of the flexible screen is connected to the first frame; a rotating shaft, which is connected to the second frame, and the second end of the flexible screen passes around the rotating shaft; a pulley assembly, which is arranged on the first frame; a connecting member, wherein the first end of the connecting member is connected to the first frame, and the second end of the connecting member passes around the pulley assembly; an elastic member, wherein the first end of the elastic member is connected to the second end of the flexible screen, and the second end of the elastic member is connected to the second end of the connecting member; wherein, during the movement of the second frame relative to the first frame, the pulley assembly moves with the second frame, and the connecting member moves around the pulley assembly to keep the length of the elastic member unchanged.

[0007] In an embodiment of the present application, an electronic device with a screen unfolding and recycling function is defined. Specifically, the electronic device includes a first frame, a second frame, a flexible screen, a rotating shaft and an elastic member.

[0008] The first frame and the second frame are the main frame structures of the electronic device, which are used to position and support other structures on the electronic device, wherein the first frame and the second frame can move relative to each other. The flexible screen has a rollable property, and one end of the flexible screen is fixed on the first frame, which is the fixed end of the flexible screen, and the other end is the free end of the flexible screen. The shaft is connected to the second frame, and the shaft can move synchronously with the second frame relative to the first frame. The flexible screen is partially wound around the peripheral side of the shaft so that the free end of the flexible screen is wound to the opposite side of the fixed top.

[0009] During use, when the second frame and the rotating shaft move in a direction away from the second frame, the rotating shaft gradually unfolds the flexible screen by rolling to increase the exposed area of ​​the flexible screen. Conversely, when the second frame and the rotating shaft move in a direction close to the second frame, the unfolded flexible screen curls due to the rolling rotating shaft and is finally stored on the peripheral side of the rotating shaft or the opposite side of the fixed end.

[0010] The elastic member is arranged in the body, the first end of the elastic member is used to connect to the free end of the flexible screen, and the second end of the elastic member is used to connect to the first frame. The elastic member is always in a stretched state to tighten the flexible screen through its own elastic force to avoid unevenness in some areas of the flexible screen and ensure the flatness of the flexible screen.

[0011] However, in the process of unfolding or folding the flexible screen, the free end of the flexible screen will reciprocate, causing the elastic member connected between the free end and the body to frequently expand and contract, which will affect the life of the elastic member and increase the possibility of fatigue failure of the elastic member. If the elastic member fails, the flexible screen will be uneven and the flexible screen will not be able to be folded into place, so that the product cannot be used normally.

[0012] In this regard, the present application sets a pulley assembly and a connector in an electronic device, the pulley assembly is installed on the first frame, the first end of the connector is connected to the first frame, the second end of the connector bypasses the pulley assembly and is connected to the second end of the elastic member, and the first end of the elastic member is connected to the free end of the flexible screen. Specifically, when the shaft unfolds the flexible screen by translation, the first length of the shaft translation is equal to the unfolded length of the unfolded side of the flexible screen, and is also equal to the shortened length of the storage side of the flexible screen. The connector is wound around the pulley assembly and the pulley assembly can move synchronously with the second frame, so the second end of the connector can be extended by the first length through the rotating pulley assembly, so that the length of the spring does not change. Similarly, when the shaft stores the flexible screen by translation, the second length of the shaft translation is equal to the shortened length of the unfolded side of the flexible screen, and is also equal to the elongated length of the storage side of the flexible screen, and is also equal to the shortened length of the second end of the connector, so the distance between the free end of the flexible screen on the storage side and the second end of the connector remains unchanged, so that the state of the spring does not change.

[0013] It can be seen that by setting the pulley assembly, the elastic member can always be kept in the same state, avoiding the elastic member from synchronously extending and retracting during the flexible screen extension process, thereby solving the technical problem of elastic member failure due to frequent extension and retraction fatigue and short life of the elastic member without affecting the flexible screen unfolding and recovery function. This achieves the technical effect of optimizing the electronic device structure, reducing the failure rate of electronic equipment, and extending the service life of electronic equipment.

[0014] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 is one of the structural schematic diagrams of an electronic device according to an embodiment of the present application;

[0017] Figure 2 This is one of the force diagrams of an electronic device according to an embodiment of the present application;

[0018] Figure 3 This is a second schematic diagram of the force of an electronic device according to an embodiment of the present application;

[0019] Figure 4 This is a second structural schematic diagram of an electronic device according to an embodiment of the present application;

[0020] Figure 5 This is the third structural schematic diagram of an electronic device according to an embodiment of the present application.

[0021] Figures 1 to 5 Reference numerals in the figures:

[0022] 100 electronic device, 110 first frame, 120 second frame, 130 flexible screen, 140 rotating shaft, 150 pulley assembly, 152 supporting part, 1522 first section, 1524 second section, 154 pulley, 160 connecting part, 170 elastic part, 180 driving assembly, 182 lead screw, 184 slider, 186 motor, 190 bracket, 192 installation cavity. DETAILED DESCRIPTION

[0023] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0024] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0025] In the description of the present application, it should be understood that the terms "upper", "inner", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0026] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] The electronic device provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0028] Combine the following Figures 1 to 5 An electronic device 100 according to an embodiment of the present application is described.

[0029] like Figure 1 , Figure 4 and Figure 5 As shown, the electronic device 100 includes: a first frame 110; a second frame 120, which can move relative to the first frame 110; a flexible screen 130, wherein the first end of the flexible screen 130 is connected to the first frame 110; a rotating shaft 140, which is connected to the second frame 120, and the second end of the flexible screen 130 passes around the rotating shaft 140; a pulley assembly 150, which is arranged on the first frame 110; a connecting member 160, wherein the first end of the connecting member 160 is connected to the first frame 110, and the second end of the connecting member 160 passes around the pulley assembly 150; an elastic member 170, wherein the first end of the elastic member 170 is connected to the second end of the flexible screen 130, and the second end of the elastic member is connected to the second end of the connecting member 160; wherein, during the movement of the second frame 120 relative to the first frame 110, the pulley assembly 150 moves with the second frame 120, and the connecting member 160 moves around the pulley assembly 150 to keep the length of the elastic member 170 unchanged.

[0030] In an embodiment of the present application, an electronic device 100 with a screen unfolding and recycling function is defined. Specifically, the electronic device 100 includes a first frame 110 , a second frame 120 , a flexible screen 130 , a hinge 140 and an elastic member 170 .

[0031] The first frame 110 and the second frame 120 are the main frame structures of the electronic device 100, which are used to position and support other structures on the electronic device 100, wherein the first frame 110 and the second frame 120 can move relative to each other. The flexible screen 130 has a rollable characteristic, and one end of the flexible screen 130 is fixed on the first frame 110, which is the fixed end of the flexible screen 130, and the other end is the free end of the flexible screen 130. The shaft 140 is connected to the second frame 120, and the shaft 140 can move synchronously with the second frame 120 relative to the first frame 110, and the flexible screen 130 is partially wound around the peripheral side of the shaft 140 so that the free end of the flexible screen 130 is wound to the opposite side of the fixed top.

[0032] During use, when the second frame 120 and the rotating shaft 140 move in a direction away from the second frame 120, the rotating shaft 140 gradually unfolds the flexible screen 130 by rolling to increase the exposed area of ​​the flexible screen 130. Conversely, when the second frame 120 and the rotating shaft 140 move in a direction close to the second frame 120, the unfolded flexible screen 130 is curled due to the rolling rotating shaft 140 and is finally stored on the peripheral side of the rotating shaft 140 or the opposite side of the fixed end.

[0033] The elastic member 170 is arranged in the main body, and the first end of the elastic member 170 is used to connect to the free end of the flexible screen 130, and the second end of the elastic member 170 is used to connect to the first frame 110. The elastic member 170 is always in a stretched state to tighten the flexible screen 130 through its own elastic force to avoid unevenness in some areas of the flexible screen 130 and ensure the flatness of the flexible screen 130.

[0034] However, in the process of unfolding or storing the flexible screen 130, the free end of the flexible screen 130 will reciprocate, causing the elastic member 170 connected between the free end and the body to frequently expand and contract, which will affect the life of the elastic member 170 and increase the possibility of fatigue failure of the elastic member 170. If the elastic member 170 fails, the flexible screen 130 will be uneven, and the flexible screen 130 will not be able to be stored in place, so that the product cannot be used normally.

[0035] In this regard, the present application provides a pulley assembly 150 and a connector 160 in the electronic device 100. The pulley assembly 150 is mounted on the first frame 110. The first end of the connector 160 is connected to the first frame 110. The second end of the connector 160 bypasses the pulley assembly 150 and is connected to the second end of the elastic member 170. The first end of the elastic member 170 is connected to the free end of the flexible screen 130. Specifically, when the rotating shaft 140 unfolds the flexible screen 130 by translation, the first translation length of the rotating shaft 140 is equal to the unfolding length of the unfolding side of the flexible screen 130, and is also equal to the shortened length of the storage side of the flexible screen 130. The connector 160 is wound around the pulley assembly 150 and the pulley assembly 150 can move synchronously with the second frame 120. Therefore, the second end of the connector 160 can be extended by the first length through the rotating pulley assembly 150, so that the length of the spring does not change. Similarly, when the shaft 140 is translated to accommodate the flexible screen 130, the second length of the translation of the shaft 140 is equal to the contracted length of the unfolded side of the flexible screen 130, and is also equal to the extended length of the retracted side of the flexible screen 130, and is also equal to the shortened length of the second end of the connector 160. Therefore, the distance between the free end of the flexible screen 130 on the retracted side and the second end of the connector 160 remains unchanged so that the state of the spring does not change.

[0036] It can be seen that by setting the pulley assembly 150, the elastic member 170 can always be kept in the same state, and the elastic member 170 is prevented from synchronously extending and retracting during the extension and retraction process of the flexible screen 130, thereby solving the technical problem of the elastic member 170 failing due to fatigue caused by frequent extension and retraction and the short life of the elastic member 170 without affecting the unfolding and recycling function of the flexible screen 130. This achieves the technical effect of optimizing the structure of the electronic device 100, reducing the failure rate of the electronic device 100, and extending the service life of the electronic device 100.

[0037] The electronic device 100 includes terminal products such as mobile phones, tablet computers, and electronic books, which are not strictly limited in this embodiment.

[0038] like Figure 1 As shown, as a possible implementation, the pulley assembly 150 includes: a support portion 152 connected to the second frame 120 ; a pulley 154 rotatably connected to the support portion 152 , and a connecting member 160 wound around the pulley 154 .

[0039] In this embodiment, the electronic device 100 is further provided with a support portion 152 , the support portion 152 is connected to the second frame 120 , and the rotating shaft 140 is provided on the support portion 152 , and the rotating shaft 140 and the support portion 152 move synchronously.

[0040] Specifically, the second frame 120 can move in a first direction relative to the first frame 110, and the first direction is the direction of unfolding and folding of the flexible screen 130. When the second frame 120 moves away from the first frame 110 along the first direction, the support portion 152 and the rotating shaft 140 move away from the fixed end of the flexible screen 130 synchronously, thereby lengthening the length of the flexible screen 130 on the unfolding side and shortening the length of the flexible screen 130 on the folding side, so as to unfold the flexible screen 130. When the second frame 120 approaches the first frame 110 along a second direction opposite to the first direction, the support portion 152 and the rotating shaft 140 move toward the fixed end of the flexible screen 130 synchronously, thereby lengthening the length of the flexible screen 130 on the folding side through the elastic member 170 and shortening the length of the flexible screen 130 on the unfolding side, so as to fold the flexible screen 130.

[0041] By providing the support part 152, on the one hand, a stable support can be provided for the rotating shaft 140 to ensure that the movement trajectory of the rotating shaft 140 is consistent with the set trajectory. On the other hand, the support part 152 can extend the distance between the rotating shaft 140 and the driving part, thereby providing convenient conditions for the internal structure layout of the electronic device 100.

[0042] The pulley 154 is mounted on the support portion 152, and the pulley 154 can rotate on the support portion 152. The first end of the connecting member 160 is connected to the first frame 110, the second end of the connecting member 160 bypasses the pulley 154, and the second end of the connecting member 160 is connected to the second end of the elastic member 170. Since the elastic member 170 is in a tensioned state, the connecting member 160 pulled by the elastic member 170 is also in a tensioned state. On this basis, the connecting member 160 between the body and the pulley 154 is parallel to the movement direction of the rotating shaft 140, that is, the first direction, and the connecting member 160 between the pulley 154 and the second end of the elastic member 170 is also parallel to the first direction.

[0043] Specifically, Figure 1As shown, during the unfolding process of the flexible screen 130, the driving assembly 180 drives the support part 152, the rotating shaft 140 and the pulley 154 to move to the left. Since the first end of the connecting member 160 is connected to the main body, and the upper and lower sections of the connecting member 160 are parallel to the movement direction, the release length of the connecting member 160 on the lower side of the pulley 154 is equal to the movement length of the rotating shaft 140, thereby ensuring that the distance between the free end of the flexible screen 130 and the second end of the connecting member 160 does not change, so that the state of the elastic member 170 does not change during the extension process. Similarly, during the storage process of the flexible screen 130, the driving assembly 180 drives the support part 152, the rotating shaft 140 and the pulley 154 to move to the right, and the shortening distance of the connecting member 160 between the elastic member 170 and the pulley 154 is the same as the rightward movement distance of the rotating shaft 140, thereby ensuring that the distance between the free end of the flexible screen 130 and the second end of the connecting member 160 does not change, so that the state of the elastic member 170 does not change during the storage process, thereby achieving the technical effect of extending the service life of the elastic member 170 and the motor 186.

[0044] like Figure 1 As shown, as a possible implementation, the electronic device 100 further includes: a driving component 180, which is disposed in the first frame 110 and connected to the supporting portion 152, and the driving component 180 is used to drive the supporting portion 152 to move in the first direction.

[0045] In this embodiment, a driving assembly 180 is further provided in the electronic device 100 . The driving assembly 180 is fixed in the first frame 110 , and the supporting portion 152 is connected to the driving end of the driving assembly 180 .

[0046] Specifically, the driving end can move in a first direction relative to the first frame 110, and the first direction is the direction of unfolding and storing the flexible screen 130. When the driving end moves away from the fixed end of the flexible screen 130 along the first direction, the driving component 180 drives the support part 152 and the rotating shaft 140 to move away from the fixed end of the flexible screen 130 synchronously, thereby lengthening the length of the flexible screen 130 on the unfolding side and shortening the length of the flexible screen 130 on the storing side, so as to achieve the unfolding of the flexible screen 130. When the driving end approaches the fixed end of the flexible screen 130 along a second direction opposite to the first direction, the driving component 180 drives the support part 152 and the rotating shaft 140 to approach the fixed end of the flexible screen 130 synchronously, thereby lengthening the length of the flexible screen 130 on the storing side and shortening the length of the flexible screen 130 on the unfolding side, so as to achieve the storage of the flexible screen 130.

[0047] By providing the driving assembly 180, the flexible screen 130 can be automatically unfolded and automatically stored, eliminating the complicated operation of the user manually pushing and pulling the rotating shaft 140. This improves the motion accuracy of the flexible screen 130 during unfolding and storage, reduces the possibility of the flexible screen 130 not being unfolded or stored properly, and avoids damage to the electronic device 100 due to the user's erroneous push and pull operation, providing convenient conditions for the user.

[0048] In the actual product, the flexible screen 130 can be unfolded by the power provided by the driving assembly 180, and the flexible storage can be completed by the tension provided by the elastic member 170. After the flexible screen 130 is unfolded, the motor 186 remains in the current state to support the unfolded flexible screen 130.

[0049] In the related technology, because the spring is gradually stretched during the unfolding process, the force exerted by the spring on the driving mechanism gradually increases. On the one hand, this gradually increasing external force will affect the unfolding speed of the flexible screen 130 and generate greater noise. On the other hand, it will affect the life of the driving mechanism and shorten the battery life of the device.

[0050] In this regard, the present application provides a pulley assembly 150 and a connector 160 wound around the pulley assembly 150, so that the length of the elastic member 170 can remain unchanged during the unfolding process, so that the external force on the drive assembly 180 will not increase due to the increase in the elongation length, so as to ensure that the drive assembly 180 can drive the support portion 152 to elongate smoothly and reduce the noise during the elongation process. And when the elongated state is maintained, the elastic member 170 force on the motor 186 is relatively small, which is conducive to reducing the loss of the drive assembly 180 and extending the service life of the drive assembly 180. Thus, the above technical problems are solved.

[0051] In the related art, because the spring gradually shortens during the storage process, the force of the spring pulling the support part 152 gradually decreases, so that the storage speed of the flexible screen 130 changes during the storage stage, that is, the storage speed is faster in the first half of the storage process, and slower in the second half of the storage process, affecting the user experience.

[0052] In this regard, the present application sets a pulley assembly 150 and a connecting member 160 so that the length of the elastic member 170 can remain unchanged during the storage process, thereby providing a constant pulling force for the support portion 152, so that the support portion 152 can drive the rotating shaft 140 to store the flexible screen 130 at a uniform speed, thereby solving the technical problem of uneven storage speed of the flexible screen 130 mentioned above, and further improving the user experience.

[0053] like Figure 1As shown, as a possible embodiment, the driving assembly 180 includes: a screw 182, which is rotatably connected to the first frame 110 and extends in a first direction; a slider 184, which is sleeved on the screw 182 and meshed with the screw 182, and the support portion 152 is connected to the slider 184; a motor 186, which is connected to the screw 182 and is used to drive the screw 182 to rotate so that the slider 184 moves along the screw 182.

[0054] In this embodiment, the structure of the driving assembly 180 is defined. Specifically, the driving assembly 180 includes a lead screw 182, a slider 184 and a motor 186. The lead screw 182 is rotatably connected to the first frame 110, and the lead screw 182 extends in the first direction. The slider 184 is mounted on the lead screw 182, and through the guiding effect of the lead screw 182, the slider 184 can move along the first direction on the lead screw 182, and the support portion 152 is connected to the slider 184 and moves synchronously with the slider 184. The motor 186 is connected to the lead screw 182 and is used to drive the lead screw 182 to rotate around its own axis. A screw hole is provided on the slider 184, and the lead screw 182 is inserted into the screw hole, and the lead screw 182 is meshed with the screw hole. At the same time, the body forms a positioning on the peripheral side of the slider 184, so that the slider 184 cannot rotate with the lead screw 182. During the unfolding process, the motor 186 drives the lead screw 182 to rotate along the first rotation direction, and the slider 184 moves along the first direction under meshing cooperation, thereby driving the support part 152 and the rotating shaft 140 to unfold the flexible screen 130. During the storage process, the motor 186 is turned off, and the elastic force of the elastic member 170 pulls the flexible screen 130 and the rotating shaft 140 to apply a thrust to the slider 184, which pushes the slider 184 to force the lead screw 182 to rotate along the second rotation direction until the slider 184 abuts against the first frame 110, that is, the storage of the flexible screen 130 is completed, wherein the second rotation direction is opposite to the first rotation direction.

[0055] The threaded transmission method between the lead screw 182 and the slider 184 has the advantage of high transmission accuracy, which is beneficial to improving the unfolding and storage accuracy of the flexible screen 130. The driving assembly 180 composed of the lead screw 182 and the slider 184 has a low structural complexity, which is beneficial to reducing the cost of the electronic device 100 to enhance product competitiveness.

[0056] like Figure 1 As shown, as a possible implementation, the support portion 152 includes: a first section 1522 connected to the driving assembly 180; a second section 1524 parallel to the first section 1522, and the pulley 154 is rotatably connected to the second section 1524.

[0057] In this embodiment, the support portion 152 includes a first section 1522 and a second section 1524, both of which are fixed to the second frame 120, one end of the first section 1522 is connected to the driving assembly 180, the other end of the first section 1522 extends to the unfolding side of the rotating shaft 140, one end of the second section 1524 is located at the storage side of the rotating shaft 140, and the other end is connected to the pulley 154. By providing the first section 1522 and the second section 1524, the positioning requirements of the pulley 154 can be met, and it is ensured that there is space between the bearing and the pulley 154 for arranging the flexible screen 130 and the elastic member 170.

[0058] On this basis, the drive assembly 180 and the bearing are arranged between the first section 1522 and the second section 1524, thereby improving the structural compactness of the drive assembly 180 and the support portion 152, providing convenient conditions for the miniaturized design of the electronic device 100. This achieves the technical effect of optimizing the internal structural layout of the electronic device 100 and improving the practicality of the electronic device 100.

[0059] like Figure 1 , Figure 2 and Figure 3 As shown, as a possible implementation, the first section 1522 and the second section 1524 are both parallel to the first direction.

[0060] In this embodiment, the first section 1522 and the second section 1524 are parallel, and both the first section 1522 and the second section 1524 are parallel to the first direction. By setting the first section 1522 and the second section 1524 parallel to the first direction, the force condition of the electronic device 100 can be optimized.

[0061] Specifically, Figure 2 The force condition of the mechanism composed of the follower, the support part 152 and the rotating shaft 140 is shown.

[0062] Among them, both ends of the rotating shaft 140 are subjected to the pulling force F1 of the flexible screen 130, and both ends of the pulley 154 are subjected to the pulling force F3 of the connecting member 160. Since the left end of the elastic member 170 is connected to the flexible screen 130, and the right end of the elastic member 170 is connected to the connecting member 160, F1=kx (elastic force of the elastic member 170), and F3=kx. That is, F1=F3. From the horizontal force balance of the rotating shaft 140, the connecting member 160, and the pulley 154, it can be seen that the support part 152 exerts a force F1=0 to the left on the rotating shaft 140. According to Newton's third law, the force F2 exerted to the right by the rotating shaft 140 on the support part 152 is 0. Therefore, the driving component 180 is not subjected to external forces.

[0063] Figure 3 It shows the stress condition of the body.

[0064] As can be seen from F1=F2, the forces on the body in the horizontal direction are balanced, and F3=0. Since the shaft 140, the support part 152, and the pulley 154 remain relatively still, in the stage of unfolding the flexible screen 130, the length of the flexible screen 130 at the lower end of the shaft 140 extending around the shaft 140 is exactly equal to the length of the upper end connector 160 of the pulley 154 sliding around the pulley 154 to the lower end. In the stage of storing the flexible screen 130, the length of the flexible screen 130 at the upper end of the shaft 140 retracting around the shaft 140 is exactly equal to the length of the lower end connector 160 of the pulley 154 sliding around the pulley 154 to the upper end. That is, during the process of unfolding and storing the flexible screen 130, the spring moves left and right as a whole while the length of the spring does not change, the spring tension remains unchanged, and the spring becomes a constant force tension spring. In order to ensure that the screen is constantly tensioned, a predetermined tension needs to be given to the spring when the electronic device 100 is assembled.

[0065] It can be seen that the structure defined in this embodiment can make the driving component 180 not be affected by external forces, thereby eliminating the loss of the driving component 180 caused by external forces, thereby reducing the working noise of the driving component 180 and extending the service life of the driving component 180.

[0066] like Figure 1 As shown, as a possible implementation, the support portion 152 of the electronic device 100 also includes: a bearing seat, which is provided on the second frame 120, and the rotating shaft 140 is rotatably connected to the bearing seat; the first end of the first section 1522 is connected to the bearing seat, and the second end of the first section 1522 is connected to the slider 184; the second section 1524 is connected to the bearing seat.

[0067] In this embodiment, the electronic device 100 is further provided with a bearing seat, which is fixed on the first frame 110 and is located between the first section 1522 and the second section 1524. The bearing seat is used to position the rotating shaft 140, and the rotating shaft 140 can rotate on the bearing seat. The first section 1522 extends in the first direction, the first end of the first section 1522 is connected to the bearing seat, and the second end of the first section 1522 is connected to the slider 184. The slider 184 moving along the lead screw 182 pushes the bearing seat, the rotating shaft 140 and the second frame 120 to move through the first section 1522. The second section 1524 is connected to the bearing seat, and the pulley 154 is arranged on one end of the second section 1524 away from the bearing seat, so as to arrange the flexible screen 130 and the elastic member 170 below the second section 1524 and arrange the connecting member 160 above the second section 1524.

[0068] Among them, the first section 1522 and the second section 1524 are comb-shaped support structures. The first section 1522 can support the flexible screen 130 on the unfolded side of the rotating shaft 140 to improve the flatness of the unfolded flexible screen 130 and avoid the problem of unevenness of the flexible screen 130. The second section 1524 can support the flexible screen 130 in the storage state on the storage side of the rotating shaft 140 to prevent the flexible screen 130 from curling or even getting stuck inside the electronic device 100. In this way, the practicality of the flexible screen 130 is improved and the failure rate of the flexible screen 130 is reduced.

[0069] like Figure 1 As shown, as a possible implementation, the electronic device 100 further includes: a bracket 190 connected to the first frame 110 and located between the first section 1522 and the second section 1524 , the bracket 190 includes an installation cavity 192 , and the drive assembly 180 is disposed in the installation cavity 192 .

[0070] In this technical solution, the electronic device 100 further includes a bracket 190, which is mounted on the first frame 110 and is located between the first section 1522 and the second section 1524. The bracket 190 is used to position the drive assembly 180, and an installation cavity 192 is formed inside the bracket 190, and the drive assembly 180 is disposed in the installation cavity 192.

[0071] Specifically, the bracket 190 is provided with an axial hole, and the lead screw 182 is inserted into the screw hole so that the lead screw 182 can rotate relative to the bracket 190. The outer contour of the slider 184 is adapted to the shape of the mounting cavity 192, so that the mounting cavity 192 can limit the rotation of the slider 184, and the mounting cavity 192 can also cooperate with the lead screw 182 to guide the slider 184. The bracket 190 is also provided with an avoidance hole extending along the first direction, the avoidance hole is connected to the mounting groove, and the slider 184 is connected to the first section 1522 outside the bracket 190 through the avoidance hole.

[0072] By providing the bracket 190, on the one hand, the driving component 180 can be accurately positioned to ensure the accuracy of the unfolding and storage action of the flexible screen 130, and avoid the problem that the flexible screen 130 is not unfolded or stored properly due to the misalignment of the driving component 180. On the other hand, the bracket 190 can separate the flexible screen 130 and the driving component 180, avoid interference between the flexible screen 130 and the driving component 180, and eliminate the possibility of the flexible screen 130 being rolled into the driving component 180. This can improve the safety and reliability of the electronic device 100 and reduce the failure rate of the electronic device 100.

[0073] like Figure 1 and Figure 3As shown, as a possible implementation, the first end of the connecting member 160 is connected to an end of the bracket 190 adjacent to the rotating shaft 140 ; ​​the pulley 154 is rotationally connected to an end of the second section 1524 away from the rotating shaft 140 .

[0074] In this embodiment, the first end of the connecting member 160 is connected to the end of the bracket 190 near the rotating shaft 140, and the pulley 154 is arranged at the end of the second section 1524 away from the rotating shaft 140, that is, near the root of the bracket 190. This structure provides sufficient travel for the connecting member 160 and the pulley 154, so that the synchronous structure composed of the connecting member 160 and the pulley 154 can effectively match the telescopic travel of the flexible screen 130, ensuring that the elastic member 170 can be maintained in a constant force state.

[0075] like Figure 1 As shown, as a possible implementation, the connecting member 160 is a metal wire, and the elastic member 170 is a tension spring.

[0076] In this embodiment, the connector 160 is a metal wire, which can be specifically a steel wire rope. Selecting a metal wire as the connector 160 can, on the one hand, provide convenient conditions for the lightweight design of the electronic device 100 and optimize the user's holding experience. On the other hand, the metal wire has excellent anti-pulling performance and can effectively resist the tension of the elastic member 170, thereby ensuring the movement accuracy of the flexible screen 130. The peripheral side of the pulley 154 is provided with a groove surrounding the axis of the pulley 154, and the metal wire is inserted into the slide groove to position the metal wire through the slide groove to prevent the metal wire from detaching from the pulley 154 due to vibration, impact and other factors.

[0077] like Figure 1 As shown, as a possible implementation, the first frame 110 and the second frame 120 enclose a cavity including an opening; the flexible screen 130 covers one side of the first frame 110 and the second frame 120 .

[0078] In this embodiment, after the assembly of the electronic device 100 is completed, the first frame 110 and the second frame 120 enclose a cavity including an opening, wherein the back plates on the first frame 110 and the second frame 120 shield the internal structure of the electronic device 100 at the back side opposite to the opening. The support portion 152, the flexible screen 130, the connector 160, the elastic member 170 and the pulley 154 are all arranged in the cavity, and the flexible screen 130 covers the first frame 110 and the second frame 120 on the opening side, so that the flexible screen 130 is exposed in the opening, so that the user can use the flexible screen 130.

[0079] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0080] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An electronic device, It is characterized in that include: First frame; a second frame, capable of moving relative to the first frame; A flexible screen, wherein a first end of the flexible screen is connected to the first frame; A rotating shaft connected to the second frame, and the second end of the flexible screen passes around the rotating shaft; A pulley assembly, disposed on the first frame; A connecting member, a first end of which is connected to the first frame, and a second end of which is passed around the pulley assembly; an elastic member, wherein a first end of the elastic member is connected to a second end of the flexible screen, and a second end of the elastic member is connected to a second end of the connecting member; Wherein, during the movement of the second frame relative to the first frame, the pulley assembly moves with the second frame, and the connecting member moves around the pulley assembly to keep the length of the elastic member unchanged; The pulley assembly comprises: A support portion connected to the second frame; A pulley is rotatably connected to the support portion, and the connecting member is wound around the pulley; The supporting portion includes a first section and a second section, the pulley is rotatably connected to the second section, the first section can support the flexible screen on the unfolding side of the rotating shaft, and the second section can support the flexible screen in a stowed state on the stowing side of the rotating shaft.

2. The electronic device according to claim 1, It is characterized in that Also includes: A driving assembly is disposed in the first frame and connected to the supporting portion, and the driving assembly is used to drive the supporting portion to move in a first direction.

3. The electronic device according to claim 2, It is characterized in that The drive assembly comprises: A lead screw, rotatably connected to the first frame and extending in the first direction; A slider is sleeved on the lead screw and meshed with the lead screw, and the support portion is connected to the slider; A motor is connected to the lead screw and is used to drive the lead screw to rotate so that the slider moves along the lead screw.

4. The electronic device according to claim 3, It is characterized in that The first section is connected to the drive assembly; The second section is parallel to the first section.

5. The electronic device according to claim 4, It is characterized in that The support portion further comprises: A bearing seat is arranged on the second frame, and the rotating shaft is rotatably connected to the bearing seat; The first end of the first section is connected to the bearing seat, and the second end of the first section is connected to the slider; The second section is connected to the bearing seat.

6. The electronic device according to claim 4, It is characterized in that Also includes: The bracket is connected to the first frame and is located between the first section and the second section. The bracket includes an installation cavity, and the driving assembly is arranged in the installation cavity.

7. The electronic device according to claim 6, It is characterized in that The first end of the connecting member is connected to an end of the bracket adjacent to the rotating shaft; The pulley is rotatably connected to an end of the second section away from the rotating shaft.

8. The electronic device according to any one of claims 1 to 7, It is characterized in that The connecting member is a metal wire, and the elastic member is a tension spring.

9. The electronic device according to any one of claims 1 to 7, It is characterized in that The first frame and the second frame enclose a cavity including an opening; The flexible screen covers one side of the first frame and the second frame.

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