An electronic device

Abstract

The present disclosure provides an electronic device, including a shell, including a first shell and a second shell, which are enclosed to form a receiving structure with an opening. The slide rail mechanism is arranged in the receiving structure and connected to the second shell, and is slidably arranged on the first shell along a first direction. The first end of the flexible display screen is cooperatively connected to the slide rail mechanism, and the second end is connected to the first shell to cover the opening. The driving mechanism is arranged in the receiving structure and connected to the first shell, and is connected to the slide rail mechanism to drive the slide rail mechanism to move along the first direction. The control mechanism includes a displacement sensor and a controller, which is used to measure the displacement change of the slide rail mechanism relative to the first shell. The controller is arranged in the first shell, and is used to control the driving mechanism to drive the slide rail mechanism to move along the first direction according to the displacement change. The driving mechanism drives the slide rail mechanism to move in the first direction, driving the flexible display screen to move, thereby achieving the purpose of accurately controlling the moving stroke of the flexible display screen.

Description

Technical Field

[0001] The present disclosure relates to the technical field of retractable screen products, and in particular to an electronic device. Background Art

[0002] With the continuous advancement of screen technology, the mass production of foldable flexible screens and the advent of the world's first 0.01mm thick flexible display are allowing for an ever-increasing variety of terminal product forms, from smart wearables to smart homes and even smartphones. Ultra-thin flexible screens will enable a wide range of future product designs, including foldable phones, ring-shaped phones, and devices with unique curved surfaces. Furthermore, the arrival of 5G will allow all smart products to be electrically connected, accelerating data transmission and allowing some modules in smart terminal products to be separated from the device itself, while still functioning, such as camera modules and box acoustic modules. Further advances in battery technology are enabling smaller terminal products with higher battery capacity and greater design flexibility.

[0003] As people's requirements for flexible screen products increase, when processing different tasks such as watching videos and making calls, it is necessary to increase or decrease the display area to improve the product experience. Currently, there are mainly two types of screen expansion structures: folding screen structure and retractable screen structure. Summary of the Invention

[0004] The present disclosure provides an electronic device to solve at least some of the problems in the related art.

[0005] An embodiment of the present disclosure provides an electronic device, including:

[0006] The housing comprises a first housing and a second housing, wherein the first housing and the second housing are combined to form a receiving structure having an opening;

[0007] a slide rail mechanism, the slide rail mechanism being disposed in the receiving structure and connected to the second shell, the slide rail mechanism being slidably disposed on the first shell along a first direction;

[0008] a flexible display screen, wherein a first end of the flexible display screen is cooperatively connected to the slide rail mechanism, and a second end of the flexible display screen is connected to the first housing to cover the opening;

[0009] A driving mechanism is disposed in the receiving structure and connected to the first shell, the driving mechanism being connected to the slide rail mechanism and configured to drive the slide rail mechanism to move along the first direction;

[0010] a control mechanism comprising a displacement sensor and a controller electrically connected to the displacement sensor, wherein the displacement sensor is used to measure a displacement change of the slide mechanism relative to the first housing; the controller is disposed in the first housing and is used to control the drive mechanism to drive the slide mechanism to move a first stroke in the first direction according to the displacement change;

[0011] The driving mechanism drives the slide mechanism to move along the first direction, driving the second shell and the first end of the flexible display screen to move along the first direction relative to the first shell, so that the flexible display screen switches between a retracted state and an extended state.

[0012] In some possible implementations, the displacement sensor includes a Hall magnet and a plurality of Hall sensors electrically connected to the controller, the Hall magnet is disposed on one of the slide rail mechanism and the first housing, and the plurality of Hall sensors are disposed on the other of the slide rail mechanism and the first housing;

[0013] The slide rail mechanism moves relative to the first shell, and the multiple Hall sensors obtain the displacement change of the slide rail mechanism relative to the first shell by sensing the magnetic field change of the Hall magnet.

[0014] In some possible implementations, the Hall magnet is disposed on the slide rail mechanism, and the plurality of Hall sensors are spaced apart along the first direction on the first housing.

[0015] In some possible implementations, the displacement sensor further includes a sensor circuit board disposed in the first housing, and the plurality of Hall sensors are spaced apart along the first direction on the sensor circuit board;

[0016] The driving mechanism includes a driving circuit board electrically connected to the sensor circuit board;

[0017] The controller includes a control circuit board electrically connected to the drive circuit board.

[0018] In some possible embodiments, the controller is also electrically connected to the flexible display screen, and is also used to determine a second stroke amount of the flexible display screen to be unfolded or retracted based on a first stroke amount of the slide mechanism moving along the first direction, and to control the display size of the flexible display screen based on the second stroke amount.

[0019] In some possible embodiments, the drive mechanism includes a drive motor, a screw connected to the drive motor, and a nut sleeved on the screw; the drive motor is disposed in the first housing and electrically connected to the controller, the screw extends along the first direction, and the nut abuts against the slide rail mechanism;

[0020] The driving motor drives the screw to rotate, and the nut moves relative to the screw along the first direction, thereby driving the slide rail mechanism to move relative to the first housing along the first direction.

[0021] In some possible implementations, there are two driving mechanisms, which are symmetrically arranged on the first shell.

[0022] In some possible implementations, the slide rail mechanism includes:

[0023] A bracket assembly, including a bracket;

[0024] The slide rail assembly includes a fixed base, a sliding member, and an elastic member; the fixed base is fixedly connected to the bracket, the sliding member is slidably disposed on the fixed base along a first direction and is connected to the first end of the flexible display screen, the first end of the elastic member is connected to the fixed base, and the second end of the elastic member is connected to the sliding member;

[0025] When the sliding member slides relative to the fixing seat along the first direction, the second end of the elastic component and the flexible display screen are driven to move together, and the elastic component provides an elastic force to the sliding member toward the first housing.

[0026] In some possible implementations, the elastic assembly includes a first rod, a second rod, and an elastic member, the first rod and the second rod are plugged into each other, and the elastic member is connected between the first rod and the second rod; the first rod is connected to the fixing seat, and the second rod is connected to the sliding member;

[0027] When the sliding member slides relative to the fixing seat, the second rod member is driven to slide relative to the first rod member, thereby cooperating with the first rod member to stretch or compress the elastic member.

[0028] In some possible implementations, there are multiple elastic components, including a first elastic component, a second elastic component, and a third elastic component, and the second elastic component and the third elastic component are symmetrically arranged on both sides of the first elastic component;

[0029] The elastic member of the first elastic component is extended along the first direction, and the elastic members of the second elastic component and the third elastic component are symmetrically arranged along the first direction and are inclined relative to the first direction.

[0030] The electronic device provided by the present disclosure measures the displacement change of the slide rail mechanism relative to the first shell through a displacement sensor. The controller can determine the first stroke amount that the slide rail mechanism needs to move in the first direction based on the displacement change, and output a control signal to the driving mechanism. The driving mechanism drives the slide rail mechanism to move in the first direction based on the control signal, driving the flexible display screen to move, thereby achieving the purpose of accurately controlling the movement stroke of the flexible display screen.

[0031] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0033] Figure 1 Shown is an exploded view of a retractable screen structure according to an exemplary embodiment of the present disclosure;

[0034] Figure 2 FIG2 is an exploded schematic diagram of a slide rail assembly of a slide rail mechanism according to an exemplary embodiment of the present disclosure;

[0035] Figure 3 Shown is a structural schematic diagram of a slide rail mechanism according to an exemplary embodiment of the present disclosure;

[0036] Figure 4 Shown is a structural schematic diagram of a slide rail assembly of a slide rail mechanism according to an exemplary embodiment of the present disclosure;

[0037] Figure 5 yes Figure 4 Cross-sectional view along the X1-X1 direction;

[0038] Figure 6 yes Figure 5 A partial enlarged schematic diagram of point A in the middle;

[0039] Figure 7 yes Figure 5 A partial enlarged schematic diagram of point B in the middle;

[0040] Figure 8 yes Figure 5 A partial enlarged schematic diagram of point C in the middle;

[0041] Figure 9 FIG2 is a schematic structural diagram of an elastic component of a slide rail mechanism according to an exemplary embodiment of the present disclosure;

[0042] Figure 10 and Figure 11Schematic diagrams of an electronic device according to an exemplary embodiment of the present disclosure when the flexible display screen is in a retracted state and an unfolded state are shown respectively;

[0043] Figure 12 Shown are comparative diagrams of an electronic device according to an exemplary embodiment of the present disclosure when the flexible display screen is in a retracted state and an unfolded state;

[0044] Figure 13 Shown are schematic diagrams of assembling a displacement sensor of an electronic device according to an exemplary embodiment of the present disclosure;

[0045] Figure 14 Shown are three-dimensional schematic diagrams of a displacement sensor of an electronic device according to an exemplary embodiment of the present disclosure;

[0046] Figure 15 yes Figure 13 Cross-sectional view of the XX-XX plane;

[0047] Figure 16 yes Figure 13 Cross-sectional view along the EE-EE plane. DETAILED DESCRIPTION

[0048] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0049] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. Unless otherwise defined, technical or scientific terms used in this disclosure should have the ordinary meanings understood by a person of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and similar words used in this disclosure and the claims do not denote any order, quantity, or importance, but are simply used to distinguish different components. Similarly, the terms "a" or "an" and similar words do not denote a limitation of quantity, but rather indicate the presence of at least one. The terms "plurality" or "several" mean two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and / or "upper" and similar words are for convenience only and are not intended to limit to a single position or spatial orientation. The terms "include" or "comprising" and similar words mean that the elements or objects listed before "include" or "comprising" include the elements or objects listed after "include" or "comprising" and their equivalents, and do not exclude other elements or objects. The terms "connected" or "connected" and similar words are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect.

[0050] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0051] The present disclosure provides an electronic device. The electronic device of the present disclosure is described in detail below with reference to the accompanying drawings. In the absence of conflict, the features in the following embodiments and implementations may be combined with each other.

[0052] See also Figures 1 to 3 As shown, the embodiment of the present disclosure provides a slide rail mechanism for a telescopic screen structure, comprising: a bracket assembly 10 and a slide rail assembly 20. The bracket assembly 10 includes a bracket 11. The slide rail assembly 20 includes a fixing seat 21, a sliding member 22 for connecting the flexible display screen 90 of the telescopic screen structure, and an elastic member 23. The fixing seat 21 is fixedly connected to the bracket 11, and the sliding member 22 slides along a first direction X ( Figure 3The first end 2301 of the elastic component 23 is connected to the fixing base 21, and the second end 2302 of the elastic component 23 is connected to the sliding member 22. When the sliding member 22 slides relative to the fixing base 21 along the first direction X, it drives the second end of the elastic component 23 and the flexible display screen 90 to move together. The elastic component 23 is stretched or compressed by the sliding member 22 to produce deformation, thereby generating pre-tension on the flexible display screen 90. It can be understood that the sliding member 22 moves along the first direction X. Figure 3 The fixing base 21 slides relative to the fixing base 21 in the direction of the middle arrow, stretching the elastic component 23 so that the elastic component 23 generates reverse pulling force.

[0053] Through the above arrangement, the slide rail mechanism provided by the present disclosure allows the sliding member 22 to move relative to the fixed seat 21 along the first direction X, thereby driving the flexible display screen 90 of the retractable screen structure to move together, thereby achieving the deployment and retraction of the flexible display screen 90. The sliding member 22 drives the elastic component 23 to move together, stretching the elastic component 23 and generating a pre-tension force on the flexible display screen 90, making the flexible display screen 90 more flat when deployed and preventing visual problems such as bulging, swelling, and distortion of the screen when the entire device is slid open.

[0054] In some possible embodiments, the slide rail assembly 20 further includes at least one guide rail 24, which is disposed on the fixed base 21 and extends along the first direction X. The slider 22 is provided with a sliding groove 220 corresponding to the guide rail 24, and the slider 22 is slidably disposed on the guide rail 24 via the sliding groove 220. In this embodiment, there are four sets of guide rails 24, symmetrically disposed on the fixed base 21, to provide greater stability for the slider 22 during sliding. In other examples, the number of guide rails 24 may also be other, and this disclosure is not limited thereto.

[0055] In some possible implementations, the slide rail assembly 20 further includes at least one limit stopper 25, which is disposed at one end of the fixing seat 21 away from the bracket 11 ( Figure 3 The upper end is described in the figure), and the sliding member 22 is provided with a limiting portion 221 that abuts and cooperates with the limiting block 25. The limiting block 25 abuts and cooperates with the limiting portion 221 of the sliding member 22, which can limit the starting position of the sliding member 22 and prevent the sliding member 22 from separating from the guide rail 24. In this embodiment, the limiting portion 221 can be understood as a groove, and the number of the limiting blocks 25 is two, which are symmetrically arranged on the fixing seat 21. The number of the limiting portions 221 is two, which are arranged corresponding to the limiting blocks 25, and the present disclosure does not impose any restrictions on this. Figure 3In the example shown, the limit stop 25 is provided at the upper end of the fixed seat 21, and the starting position of the sliding member 22 is located at the upper end of the fixed seat 21. In this state, the elastic component 23 applies an elastic pre-tension to the sliding member 22, thereby maintaining the sliding member 22 at the starting position.

[0056] See also Figures 4 to 6 As shown, in some possible embodiments, at least one side of the guide rail 24 is provided with a snap-fit ​​portion 241, and the slider 22 is provided with a first snap-fit ​​portion 222 that snaps into engagement with the snap-fit ​​portion 241. The first snap-fit ​​portion 222 snaps into engagement with the snap-fit ​​portion 241 of the guide rail 24, enabling the slider 22 to be more securely connected to the guide rail 24 and providing greater stability when sliding along the guide rail 24. It is understood that the snap-fit ​​portion 241 may be an undercut structure formed from sheet metal to prevent the slider 22 from disengaging from the guide rail 24. In this embodiment, the snap-fit ​​portion 241 is provided on both sides of the guide rail 24, but this disclosure is not limited thereto.

[0057] See also Figure 7 As shown, in some possible embodiments, the side of the sliding member 22 is provided with a second snap-fit ​​portion 223 that is snap-fitted with the side of the fixing seat 21. The sliding member 22 is snap-fitted with the side of the fixing seat 21 through the second snap-fit ​​portion 223, so that the connection between the sliding member 22 and the fixing seat 21 is more stable, preventing the sliding member 22 from detaching from the fixing seat 21 when sliding, and improving the stability of the sliding member 22 when sliding. Furthermore, the slide rail assembly 20 also includes a plastic snap 224, which is covered and snapped to the side of the fixing seat 21, and the second snap-fit ​​portion 223 is snapped to the plastic snap 224. The plastic snap 224 can reduce the friction between the second snap-fit ​​portion 223 and the side of the fixing seat 21, reduce wear and ensure smooth sliding. In this embodiment, the plastic snap 224 can be made of POM (Polyoxymethylene, polyoxymethylene resin) plastic, which is a self-lubricating plastic. The sliding member 22 and the plastic clip 224 can be combined together as a single part through a co-molding process (insert-molding). The design gap between the plastic clip 224 and the side of the fixing base 21 is 0.05, ensuring that the sliding member 22 can only slide along the extension direction of the guide rail 24, that is, the first direction X, thereby improving the structural stability.

[0058] See also Figure 8 As shown, in some possible embodiments, the fixed seat 21 is provided with a step portion 211 extending along the first direction X, and the sliding member 22 is provided with an abutment block 225 abutting and cooperating with the step portion 211. By cooperating with the abutment block 225 and the step portion 211, the sliding member 22 can be further prevented from detaching from the fixed seat 21 when sliding.

[0059] See also Figure 9As shown, in some possible embodiments, the elastic assembly 23 includes a first rod 231, a second rod 232, and an elastic member 233. The first rod 231 and the second rod 232 are interlocked and slidable with each other, and the elastic member 233 is connected between the first rod 231 and the second rod 232. The first rod 231 is connected to the fixed seat 21, and the second rod 232 is connected to the sliding member 22. The elastic member 233 can be a spring, a tension spring, or the like. It is pre-tensioned during assembly to maintain the sliding member 22 in its starting position. The spring begins to operate when the first rod 231 and the second rod 232 are pulled apart. When the sliding member 22 slides relative to the fixed seat 21, it drives the second rod 232 to slide relative to the first rod 231, thereby cooperating with the first rod 231 to stretch or compress the elastic member 233, causing the elastic member 233 to deform and generate an elastic force on the sliding member 22.

[0060] Furthermore, the first rod 231 and the second rod 232 are both provided with a slide groove, and the two are plugged into each other and can slide relative to each other. Figure 9 The lower end is shown in FIG. 2 ) and is fixed to the fixing seat 21 by rivets. The first end of the second rod 232 ( Figure 9 The first rod 231 (shown as the upper end) is secured to the sliding member 22 via rivets. The second end of the first rod 231 protrudes outwardly to form a first protrusion 234, and the second end of the second rod 232 protrudes outwardly to form a second protrusion 235. Multiple groups of elastic members 233 are evenly distributed between the first protrusion 234 and the second protrusion 235, providing sufficient elastic force. When the sliding member 22 slides relative to the fixed base 21, it drives the second rod 232 to slide relative to the first rod 231, thereby cooperating with the first rod 231 to stretch the elastic member 233, causing the elastic member 233 to deform and generate a reverse pulling force on the sliding member 22, ensuring that the flexible display screen remains "tensioned."

[0061] In some possible embodiments, the elastic components 23 are multiple in number, including a first elastic component 23A, a second elastic component 23B, and a third elastic component 23C. The second elastic component 23B and the third elastic component 23C are symmetrically arranged on either side of the first elastic component 23A. The elastic member 233 of the first elastic component 23A extends along the first direction X, and the elastic members 233 of the second elastic component 23B and the third elastic component 23C are symmetrically arranged along the first direction X and are inclined relative to the first direction X.

[0062] Due to limited space, it's difficult for a single guide rail to achieve such a long elastic stroke. Through this arrangement, the three sets of elastic components can form a relay mechanism, increasing the sliding stroke of the elastic components. The second elastic component 23B and the third elastic component 23C are identical in design and symmetrically arranged on either side of the first elastic component 23A. The initial compression of the elastic member of the first elastic component 23A can be slightly greater than that of the second elastic component 23B and the third elastic component 23C, thereby achieving a greater sliding stroke. Assuming a total design sliding stroke of 30.00 mm, the first elastic component 23A can begin operating after sliding 19 mm from the slider 22.

[0063] In some possible embodiments, the entire slide rail assembly 20 can be fixed to the bracket 11 by riveting. One end of the bracket 11 may include a connecting plate 111, and the fixing seat 21 may be a stamped metal plate, fixed to the connecting plate 111 by a riveting process. The flexible display screen 90 is fixed to the sliding member 22 of the slide rail assembly 20. The bracket 11 can be made of aluminum alloy to improve the structural strength. The sliding member 22 can be processed by a co-molding process of SUS stainless steel plate and POM plastic. The stainless steel plate can serve as the main body to provide strength support, and the slide groove can be formed by POM plastic injection molding, which can slide with the fixing seat 21 and the guide rail 24 to reduce friction. The limit block 25 can be made of plastic material, which can limit the starting position of the sliding member 22 and prevent the sliding member 22 from leaving the guide rail 24. The guide rail 24 can be formed by a stainless steel stamping process and fixed to the fixing seat 21 by spot welding. The hook structure cooperates with the slide groove 220 on the slide member 22 to prevent the slide member 22 from sliding off the guide rail 24. The exposed surface of the slide member 22 can be used as an adhesive area 226 to be adhered and fixed to the flexible display screen 90.

[0064] See again Figure 1 As shown, an embodiment of the present disclosure provides a retractable screen structure, comprising the slide rail mechanism described in the above embodiment and a flexible display screen 90. A shaft assembly 12 is provided on a side of the bracket 11 away from the slide rail assembly 20, with the axial direction of the shaft assembly 12 perpendicular to the first direction X. A first end of the flexible display screen 90 is connected to the sliding member 22, and a second end of the flexible display screen 90 is wound around the shaft assembly 12.

[0065] With this arrangement, the sliding member 22 moves relative to the fixing base 21 in the first direction X, driving the flexible display screen 90 to move with it, thereby achieving the deployment and retraction of the flexible display screen 90. The sliding member 22 drives the elastic component 23 to move together, stretching the elastic component 23 and generating a pre-tension force on the flexible display screen 90. This makes the flexible display screen 90 smoother when deployed, preventing visual issues such as bulging, swelling, and distortion of the screen when the device is slid open.

[0066] In some possible embodiments, the hinge assembly 12 includes a hinge support 121, a hinge 122, and a rotating wheel 123. The hinge support 121 is disposed on a side of the bracket 11 away from the slide rail assembly 20. The hinge 122 extends through the hinge support 121. The rotating wheel 123 is sleeved on the hinge 122, and the second end of the flexible display 90 is wound around the rotating wheel 123. When the flexible display 90 moves with the sliding member 22, the rotating wheel 123 rotates passively, allowing the flexible display 90 to deploy and retract more smoothly.

[0067] In this embodiment, the flexible display screen 90 is formed by laminating a flexible OLED screen with an extremely thin stainless steel mesh, and has great flexibility. There can be multiple rotating shaft supports 121, which are spaced apart along a second direction perpendicular to the first direction X. There can be multiple rotating wheels 123, with one rotating wheel installed between two adjacent rotating shaft supports 121. According to the size between two adjacent rotating shaft supports 121, the rotating wheels can be divided into large rotating wheels and small rotating wheels, and installed in appropriate positions. It can be injection molded with engineering plastic POM, with a through hole in the middle and grooves at both ends to accommodate bearings 124, which are sleeved on the rotating shaft 122. After assembly, it can be passively rotated on the rotating shaft 122 through the bearings 124. The rotating shaft 122 can be a D-shaped shaft with a D-shaped cross section. Its main function is to fix the inner ring of the bearing to prevent the inner ring of the bearing and the rotating shaft from rotating. It can be made of stainless steel and pass through multiple rotating shaft supports 121. The rotating shaft 122 may be provided with screw threads 1220 at both ends, and can be fixed to the middle frame of the electronic device by fasteners such as screws 126, thereby fixing the rotating shaft. The screw 126 may be made of metal. The screw may include a threaded screw, one end of which is a screw rod, which is passed through a screw gasket and locked on the rotating shaft, and the screw gasket is locked to the rotating shaft. The bearing 124 may be made of stainless steel or ceramic and assembled on the rotating wheel 123. A bearing 124 is respectively assembled at both ends of each rotating wheel 123, and a bearing gasket is assembled. The bearing gasket may be made of metal. When installing the rotating wheel on the rotating shaft, a bearing gasket is placed on both sides of each rotating wheel, and the rotating shaft is passed through the inner hole of the gasket. When the two ends of the rotating shaft are tightened by screws, the screw gasket fixes the inner ring of the bearing to prevent the inner ring of the bearing from rotating with the outer ring of the bearing, and has the function of grounding the bearing and the bracket.

[0068] See also Figures 10 to 12 As shown, the embodiment of the present disclosure provides an electronic device, which can be a mobile phone, a mobile terminal, a tablet computer, a laptop computer, a terminal handheld device with a screen, a vehicle-mounted display device, etc. The electronic device includes a housing, the retractable screen structure as described in the above embodiment, and a drive mechanism 99.

[0069] The shell includes a first shell 91 and a second shell 92 that is slidably arranged on the first shell 91 along the first direction X. The first shell 91 and the second shell 92 enclose a receiving structure 991 with an opening. The flexible display screen 90 and the slide rail mechanism are both arranged in the receiving structure 991, and the slide rail mechanism is connected to the second shell 92. The hinge assembly 12 is located on the side close to the second shell 92, the first end 901 of the flexible display screen 90 is located on the side close to the bottom of the shell, and the second end 902 of the flexible display screen 90 is connected to the first shell 91 to cover the opening. The driving mechanism 99 is arranged in the receiving structure 991 and connected to the first shell 91. The driving mechanism 99 is connected to the slide rail mechanism and is used to drive the slide rail mechanism to move along the first direction X. Optionally, the first shell 91 can be provided with a support plate 93, and the second end of the flexible display screen 90 is connected to the support plate 93. The support plate 93 can support and protect the flexible display screen 90.

[0070] The driving mechanism 99 drives the slide rail mechanism to move along the first direction X, driving the second shell 92, the slide rail assembly 20, the first end of the flexible display screen 90 and the sliding member 22 to move relative to the first shell 91 along the first direction X, so that the flexible display screen 90 switches between the retracted state and the extended state.

[0071] like Figure 10 As shown, due to the pre-tightening of the elastic member of the elastic component, the sliding member 22 is subjected to the pre-tightening force of the elastic component at the starting position, and due to the presence of the limit block 25, it remains stationary at the starting position, and the flexible display screen 90 is in a retracted state.

[0072] The driving mechanism 99 is fixed on the middle frame (ie, the housing) of the whole machine as a power source. After the electronic device receives the instruction through the UI, it controls the driving mechanism 99 to drive the slide mechanism to move along the first direction X ( Figure 11 , the slide rail mechanism as a whole slides out relative to the first housing 91 in the direction of the first housing 91. During this process, the first end of the flexible display screen 90 slides together with the sliding member 22, and the rotating wheel of the rotating shaft assembly is passively rotated by the force of the flexible display screen 90. Since the second end of the flexible display screen 90 is connected to the first housing 91, as the slide rail mechanism gradually slides out, the flexible display screen 90 can be gradually unfolded, as shown in FIG. Figure 11As shown. During the sliding of the slide rail mechanism, the slider 22 is pulled by the flexible display and can move from one end of the fixed base 21 to the other, further extending the extended length of the flexible display 90. Furthermore, during the sliding process, the elastic component is stretched by the slider 22, generating an elastic tension on the slider 22 in the opposite direction of the sliding direction. The flexible display 90 is always subjected to this tension in the opposite direction, which is equivalent to pulling the flexible display 90 to the right, making the extended flexible display 90 smoother. This ensures that the curved trajectory of the flexible display 90 moves according to the design intent and prevents visual problems such as bulging, swelling, and distortion of the screen when the entire device is slid open.

[0073] As can be understood, throughout this process, the slider 22 is pulled by the second end of the flexible display 90, allowing it to move from one end of the mounting base 21 to the other. Assuming the travel of the slide mechanism relative to the first housing 91 is S, and the travel of the slider 22 is S, the first end of the flexible display 90 moves a distance of 2S relative to the first housing 91 along with the slide mechanism.

[0074] When the whole machine receives an external command to retract, the drive motor starts to drive in reverse to retract the slide mechanism and the flexible display screen. During this process, the bracket and the fixed seat are driven by the drive mechanism 99 to move in the opposite direction, and the flexible display screen and the sliding member are gradually retracted under the elastic force of the elastic component. The sliding member returns to the starting position under the elastic force of the elastic component, thereby restoring the flexible display screen to the retracted state. Therefore, the use of the slide mechanism disclosed in the present invention can smoothly and effectively ensure that the flexible display screen maintains the curved shape of the appearance during the sliding and retraction process of the whole machine, and ensure that the power loss caused by the friction generated during the sliding and retraction process of the screen is at a low level. It has an operational and easy-to-implement solution to ensure product reliability.

[0075] See also Figure 10 and Figure 11 As shown, in some possible embodiments, the bracket 11 is provided with a transmission member 13. The drive mechanism 99 includes a drive motor, a screw 14 connected to the drive motor, and a nut 15 sleeved on the screw 14. The screw 14 extends along the first direction X, and the nut 15 abuts against the transmission member 13. The drive motor drives the screw 14 to rotate, driving the nut 15 and the transmission member 13 to move along the first direction X, thereby driving the slide rail mechanism to move along the first direction X. It should be noted that the drive mechanism 99 may also adopt a structure such as a rack and pinion, a worm gear, or the like.

[0076] See also Figure 13As shown, in some optional embodiments, the electronic device of the present disclosure may further include a control mechanism, the control mechanism including a displacement sensor and a controller electrically connected to the displacement sensor, the displacement sensor being used to measure the displacement change of the slide mechanism relative to the first shell 91. The controller is provided in the first shell 91 and is used to control the driving mechanism 99 to drive the slide mechanism to move a first stroke along the first direction X according to the displacement change. The driving mechanism 99 drives the slide mechanism to move along the first direction X, driving the bracket 11, the second shell 92, and the first end 901 of the flexible display 90 to move relative to the first shell 91 along the first direction X, so that the flexible display 90 switches between a retracted state and an extended state. It can be understood that the displacement sensor is used to measure the displacement change of the bracket 11 of the slide mechanism relative to the first shell 91, and the driving mechanism 99 drives the bracket 11 of the slide mechanism to move along the first direction X, driving the bracket 11, the second shell 92, and the first end 901 of the flexible display 90 to move relative to the first shell 91 along the first direction X. In this embodiment, there are two drive mechanisms 99, which are symmetrically arranged on the first housing 91. The nuts of the two drive mechanisms push the bracket to move outward or retract relative to the first housing, and the dual drive mechanism ensures balanced pushing force.

[0077] Through the above-mentioned setting, the displacement change of the slide rail mechanism relative to the first shell 91 is measured by the displacement sensor. The controller can determine the first stroke amount that the slide rail mechanism needs to move along the first direction X based on the displacement change, and output a control signal to the driving mechanism. The driving mechanism drives the slide rail mechanism to move along the first direction X according to the control signal, driving the flexible display screen 90 to move, thereby achieving the purpose of accurately controlling the movement stroke of the flexible display screen 90.

[0078] In some possible implementations, the displacement sensor includes a Hall magnet 71 and a plurality of Hall sensors 72 electrically connected to the controller, wherein the Hall magnet 71 is disposed in one of the slide rail mechanism and the first housing 91, and the plurality of Hall sensors 72 are disposed in the other of the slide rail mechanism and the first housing 91. Figure 13 In the example shown, a Hall magnet 71 is disposed on the slide mechanism, and multiple Hall sensors 72 are disposed on the first housing 91. The slide mechanism moves relative to the first housing 91, and the multiple Hall sensors 72 sense changes in the magnetic field of the Hall magnet 71 to obtain changes in the displacement of the slide mechanism relative to the first housing 91. Optionally, the Hall magnet 71 is disposed on the bracket 11 of the slide mechanism.

[0079] It can be understood that the Hall sensor 72 can be a Hall chip. The control principle of the controller is to use the Hall chip in combination with the Hall magnet, and fix the Hall magnet on the bracket 11 of the moving slide mechanism. The Hall magnet generates a magnetic field change, and the Hall chip senses magnetic fields of different intensities and generates an electrical signal change and sends it to the controller. The controller determines the displacement change of the bracket of the slide mechanism relative to the first shell based on the electrical signal change, that is, the stroke amount that the bracket of the slide mechanism has moved relative to the first shell, and then calculates the first stroke amount that the bracket of the slide mechanism needs to move relative to the first shell, thereby controlling the driving mechanism to drive the bracket to move the first stroke amount, thereby achieving the purpose of accurately controlling the moving stroke of the flexible display screen.

[0080] See also Figures 13 to 16 As shown, in some possible implementations, the Hall magnet 71 is provided on the slide mechanism, and the plurality of Hall sensors 72 are provided at intervals on the first housing 91 along the first direction X. In this embodiment, the Hall magnet 71 is provided on the bracket 11 of the slide mechanism. The number of the Hall sensors 72 is four, and the four Hall sensors 72 are provided along the first direction X (i.e. Figure 15 The spacings (indicated by the arrows in the middle) are X1, X2, X3, and X4, respectively. Furthermore, the spacings between the Hall magnet 71 and the four Hall sensors 72 are also different, and these spacings need to meet the sensing range of the Hall sensors. By providing multiple Hall sensors to jointly sense the magnetic field changes of the Hall magnets, the displacement change of the bracket relative to the first housing can be more accurately calculated, thereby achieving the purpose of precisely controlling the movement of the flexible display.

[0081] In some possible embodiments, the displacement sensor further includes a sensor circuit board 73 disposed within the first housing 91. The multiple Hall sensors 72 are spaced apart along the first direction X on the sensor circuit board 73. The drive mechanism includes a drive circuit board 17 electrically connected to the sensor circuit board 73. The controller includes a control circuit board electrically connected to the drive circuit board 17. Optionally, the sensor circuit board 73 may utilize an FPC (flexible printed circuit) to reduce space usage. The control circuit board is electrically connected to the sensor circuit board 73 for receiving data measured by the sensor circuit board 73. The control circuit board is also electrically connected to the drive circuit board for sending control signals to the drive circuit board.

[0082] It can be understood that the driving circuit board 17 is fixed on the first shell 91 of the middle frame shell, and the Hall chip can be attached to the sensor circuit board 73. The sensor circuit board 73 is connected and fixed to the driving circuit board 17 using a connector. The sensor circuit board 73 is fixed to the first shell 91, that is, the middle frame bracket. The driving circuit board 17 is connected to the control circuit board through a flexible circuit board. The Hall magnet 71 is fixed to the bracket 11 by adhesive. The bracket 11 can be provided with a receiving groove 74. The Hall magnet 71 is embedded in the receiving groove 74 to ensure the stability of the Hall magnet 71. When the driving mechanism drives the bracket 11 to move, the Hall magnet 71 also moves together, resulting in a changing distance from the Hall chip.

[0083] The bracket 11 of the slide mechanism is fixedly connected to the nut 15 of the driving mechanism. When the driving mechanism drives the bracket 11 to slide, the distance relative to the Hall chip changes. The Hall magnet set on the bracket 11 of the slide mechanism also changes with the movement of the bracket 11. The N / S poles of the Hall magnet form a closed-loop magnetic field. When the slide mechanism is closed, the Hall chip is within this magnetic field range, causing the Hall chip to generate a signal. This signal can locate the position signal of the slide mechanism closed in place. When the Hall magnet moves outward with the side bracket, the magnetic field of the Hall magnet changes. The Hall chip judges the distance the bracket is pushed out by the change in the magnetic field, generates an electrical signal and transmits it to the controller (which can be understood as the terminal product CPU). The controller then sends a control signal to the drive circuit board based on the signal to drive the drive motor to rotate or stop, thereby controlling the movement stroke of the nut relative to the screw, thereby controlling the sliding stroke of the bracket, thereby achieving the purpose of accurately controlling the movement stroke of the flexible display screen.

[0084] In some possible embodiments, the controller is further electrically connected to the flexible display screen 90, and is further configured to determine a second travel distance of the flexible display screen 90 for expansion or retraction based on the first travel distance of the slide mechanism along the first direction X, and to control the display size of the flexible display screen 90 based on the second travel distance. It will be appreciated that by receiving and sensing signal changes from the Hall effect chip, the controller controls the display size of the flexible display screen 90 based on the first travel distance of the slide mechanism along the first direction X and the second travel distance, thereby controlling the display changes of the flexible display screen 90. This can achieve the effect of displaying the screen while sliding, and can control the display ratio of a screen at any travel distance to ensure the display performance of the screen.

[0085] Other embodiments of the present disclosure will readily occur to those skilled in the art after consideration of the specification and practice of the applications disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0086] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An electronic device, characterized in that: include: The housing comprises a first housing and a second housing, wherein the first housing and the second housing are combined to form a receiving structure having an opening; a slide rail mechanism, the slide rail mechanism being disposed in the receiving structure and connected to the second shell, the slide rail mechanism being slidably disposed on the first shell along a first direction; a flexible display screen, wherein a first end of the flexible display screen is cooperatively connected to the slide rail mechanism, and a second end of the flexible display screen is connected to the first housing to cover the opening; A driving mechanism is disposed in the receiving structure and connected to the first shell, the driving mechanism being connected to the slide rail mechanism and configured to drive the slide rail mechanism to move along the first direction; a control mechanism comprising a displacement sensor and a controller electrically connected to the displacement sensor, wherein the displacement sensor is used to measure a displacement change of the slide mechanism relative to the first housing; the controller is disposed in the first housing and is used to control the drive mechanism to drive the slide mechanism to move a first stroke in the first direction according to the displacement change; The driving mechanism drives the slide mechanism to move along the first direction, thereby driving the second housing and the first end of the flexible display screen to move relative to the first housing along the first direction, so that the flexible display screen switches between a retracted state and an extended state; The slide rail mechanism comprises: A bracket assembly, including a bracket; The slide rail assembly includes a fixed base, a sliding member, and an elastic member; the fixed base is fixedly connected to the bracket, the sliding member is slidably disposed on the fixed base along a first direction and is connected to the first end of the flexible display screen, the first end of the elastic member is connected to the fixed base, and the second end of the elastic member is connected to the sliding member; When the sliding member slides relative to the fixing seat along the first direction, the second end of the elastic component and the flexible display screen are driven to move together, and the elastic component provides an elastic force for the sliding member to move toward the first housing; The slide rail assembly further comprises at least one limit stopper provided at one end of the fixing seat away from the bracket, and the sliding member is provided with a limit portion abutting and cooperating with the limit stopper.

2. The electronic device according to claim 1, wherein The displacement sensor includes a Hall magnet and a plurality of Hall sensors electrically connected to the controller, the Hall magnet being provided on one of the slide rail mechanism and the first housing, and the plurality of Hall sensors being provided on the other of the slide rail mechanism and the first housing; The slide rail mechanism moves relative to the first shell, and the multiple Hall sensors obtain the displacement change of the slide rail mechanism relative to the first shell by sensing the magnetic field change of the Hall magnet.

3. The electronic device according to claim 2, wherein: The Hall magnet is disposed on the slide rail mechanism, and the plurality of Hall sensors are disposed on the first housing at intervals along the first direction.

4. The electronic device according to claim 3, wherein: The displacement sensor further includes a sensor circuit board disposed in the first housing, and the plurality of Hall sensors are spaced apart on the sensor circuit board along the first direction; The driving mechanism includes a driving circuit board electrically connected to the sensor circuit board; The controller includes a control circuit board electrically connected to the drive circuit board.

5. The electronic device according to claim 1, wherein The controller is also electrically connected to the flexible display screen, and is also used to determine the second stroke amount of the flexible display screen to be unfolded or retracted based on the first stroke amount of the slide mechanism moving along the first direction, and control the display size of the flexible display screen based on the second stroke amount.

6. The electronic device according to claim 1, wherein: The driving mechanism includes a driving motor, a screw connected to the driving motor, and a nut sleeved on the screw; the driving motor is disposed in the first housing and electrically connected to the controller, the screw extends along the first direction, and the nut abuts against the slide rail mechanism; The driving motor drives the screw to rotate, and the nut moves relative to the screw along the first direction, thereby driving the slide rail mechanism to move relative to the first housing along the first direction.

7. The electronic device according to claim 6, wherein: There are two driving mechanisms, which are symmetrically arranged on the first shell.

8. The electronic device according to claim 1, wherein: The elastic component includes a first rod, a second rod, and an elastic member. The first rod and the second rod are plugged into each other, and the elastic member is connected between the first rod and the second rod. The first rod is connected to the fixing seat, and the second rod is connected to the sliding member. When the sliding member slides relative to the fixing seat, the second rod member is driven to slide relative to the first rod member, thereby cooperating with the first rod member to stretch or compress the elastic member.

9. The electronic device according to claim 8, wherein: There are multiple elastic components, including a first elastic component, a second elastic component and a third elastic component, and the second elastic component and the third elastic component are symmetrically arranged on both sides of the first elastic component; The elastic member of the first elastic component is extended along the first direction, and the elastic members of the second elastic component and the third elastic component are symmetrically arranged along the first direction and are inclined relative to the first direction.

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