An electronic device

Abstract

The present disclosure provides an electronic device, comprising: a housing comprising a first housing and a second housing slidingly arranged along a first direction on the first housing, the first housing and the second housing enclosing a receiving structure with an opening; the first housing is provided with a first sliding part arranged along the first direction. A flexible display screen, a first end of the flexible display screen is located on one side close to the bottom of the housing, and a second end of the flexible display screen is connected with the first housing to cover the opening. A sliding rail mechanism comprising a bracket connected with the flexible display screen, the bracket is provided with a second sliding part matched with the first sliding part; the first sliding part is one of a sliding rail and a sliding groove, and the second sliding part is the other one of the sliding rail and the sliding groove; the sliding rail moves along the sliding groove to drive the flexible display screen to slide along the first direction relative to the first housing, realizing the unfolding and folding of the flexible display screen.

Description

Technical Field

[0001] This disclosure relates to the field of retractable screen products, and more particularly to an electronic device. Background Technology

[0002] With the continuous advancement of screen technology and the mass production of foldable flexible screens, the world's first 0.01mm thick flexible display has emerged, enriching the forms of terminal products. From smart wearables and smart homes to smartphones, ultra-thin flexible screens will enable multi-directional product designs, such as foldable phones, ring phones, and irregularly shaped terminal products. Simultaneously, the arrival of 5G enables electrical connectivity for all smart products, and the accelerated data transmission allows for the separation of some modules from the smart terminal product while still achieving functionality, such as camera modules and BOX acoustic modules. Further development in battery technology allows for smaller terminal products, higher battery capacities, and more flexible product designs.

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

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

[0005] In a first aspect, embodiments of this disclosure provide an electronic device, including:

[0006] The housing includes a first housing and a second housing slidably disposed on the first housing along a first direction, wherein the first housing and the second housing enclose a receiving structure having an opening; the first housing is provided with a first sliding portion disposed along the first direction;

[0007] A flexible display screen, wherein a first end of the flexible display screen is located on a side near the bottom of the housing, and a second end of the flexible display screen is connected to the first housing to cover the opening;

[0008] The slide rail mechanism includes a bracket connected to the flexible display screen, the bracket having a second sliding part adapted to the first sliding part; the first sliding part is one of a sliding track and a sliding groove, and the second sliding part is the other of a sliding track and a sliding groove;

[0009] The sliding track moves along the sliding groove, so that the sliding track mechanism drives the flexible display screen to slide relative to the first housing in the first direction.

[0010] In some possible implementations, the first sliding part is a sliding groove, and the second sliding part is a sliding track; the first housing is provided with the first sliding part on both sides along a second direction perpendicular to the first direction; the bracket is provided with the second sliding part on both sides along the second direction.

[0011] In some possible implementations, a drive mechanism is also included, disposed within the receiving structure and fixedly connected to the first housing. The drive mechanism is connected to the bracket and is used to drive the bracket to move along the first direction.

[0012] The driving mechanism drives the bracket to move along the first direction, thereby causing 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 unfolded state.

[0013] In some possible implementations, the number of drive mechanisms is two, symmetrically arranged in the first housing.

[0014] In some possible implementations, the drive mechanism includes a drive motor, a screw connected to the drive motor, and a nut fitted onto the screw, the screw extending along the first direction, and the nut abutting against the bracket;

[0015] The drive motor drives the screw to rotate, causing the nut and the bracket to move along the first direction, thereby causing the slide rail mechanism to move along the first direction.

[0016] In some possible implementations, the slide rail mechanism further includes a slide rail assembly, which includes a fixed base, a sliding member, and an elastic component; the fixed base is fixedly connected to the bracket, the sliding member is slidably disposed on the fixed base along a first direction, a first end of the elastic component is connected to the fixed base, and a second end of the elastic component is connected to the sliding member; when the sliding member slides relative to the fixed base along the first direction, it drives the second end of the elastic component and the flexible display screen to move together.

[0017] In some possible implementations, a rotating shaft mechanism is also included, comprising a rotating shaft assembly, the rotating shaft assembly including a rotating shaft support, a rotating shaft, and a rotating wheel, the rotating shaft support being connected to one side of the bracket and having a shaft hole; the rotating shaft passing through the shaft hole; and the rotating wheel being sleeved on the rotating shaft.

[0018] The flexible display screen is wound around the rotating wheel, and when the flexible display screen is unfolded or retracted, it drives the rotating wheel to rotate.

[0019] In some possible implementations, the pivot support includes a plurality of sub-supports spaced apart from the bracket, each sub-support having a sub-shaft hole, the sub-shaft holes of the plurality of sub-supports being coaxially arranged to form the shaft hole, and the pivot passing through the plurality of sub-shaft holes;

[0020] The wheel includes multiple sub-wheels, with one sub-wheel located between two adjacent sub-supports.

[0021] In some possible implementations, the sub-support includes a first clamp seat and a second clamp seat spliced ​​with the first clamp seat, the first clamp seat and the second clamp seat clamping onto both sides of the rotating shaft and connected to each other.

[0022] In some possible implementations, the pivot assembly further includes two sets of first fasteners, one end of the pivot being fixedly connected to the pivot support via one set of the first fasteners, and the other end being fixedly connected to the pivot support via the other set of the first fasteners.

[0023] The electronic device disclosed herein enables the slide rail mechanism to move relative to the first housing through the sliding cooperation of the first sliding part and the second sliding part, thereby driving the flexible display screen to move and realizing the unfolding and retraction of the flexible display screen.

[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0026] Figure 1 The figure shown is an exploded view of a telescopic screen structure according to an exemplary embodiment of the present disclosure;

[0027] Figure 2 The diagram shown is an exploded view of the slide rail assembly of a slide rail mechanism according to an exemplary embodiment of the present disclosure.

[0028] Figure 3 The diagram shown is a structural schematic of a slide rail mechanism according to an exemplary embodiment of this disclosure;

[0029] Figure 4 The diagram shown is a schematic structural diagram of the slide rail assembly of a slide rail mechanism according to an exemplary embodiment of the present disclosure;

[0030] Figure 5 yes Figure 4 A sectional view along the X1-X1 direction;

[0031] Figure 6 yes Figure 5 A magnified view of a portion of point A in the middle;

[0032] Figure 7 yes Figure 5 A magnified view of a portion of point B in the middle;

[0033] Figure 8 yes Figure 5 A magnified view of a portion of point C in the middle;

[0034] Figure 9 The diagram shown is a structural schematic of the elastic component of the slide rail mechanism according to an exemplary embodiment of the present disclosure;

[0035] Figure 10 The diagram shown is a structural schematic of a telescopic screen structure according to an exemplary embodiment of the present disclosure;

[0036] Figure 11 The diagram shown is a structural schematic of the pivot assembly of a telescopic screen structure according to an exemplary embodiment of the present disclosure.

[0037] Figure 12 yes Figure 11 Enlarged view of point A in the middle;

[0038] Figure 13 The diagram shown is a structural schematic of the pivot assembly of a telescopic screen structure according to another exemplary embodiment of the present disclosure;

[0039] Figure 14 and Figure 15 The figures shown are schematic 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.

[0040] Figure 16 The images shown are comparison 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.

[0041] Figure 17 The figures shown are perspective schematic diagrams of the drive mechanism of an electronic device according to an exemplary embodiment of the present disclosure;

[0042] Figure 18 The images shown are exploded views of the drive mechanism of an electronic device according to an exemplary embodiment of this disclosure.

[0043] Figure 19 The images shown are exploded schematic diagrams of the first reduction gearbox of the drive mechanism of an electronic device according to an exemplary embodiment of the present disclosure.

[0044] Figure 20 The figures shown are schematic diagrams illustrating the installation positions of the drive mechanism of an electronic device according to an exemplary embodiment of this disclosure.

[0045] Figure 21The figures shown are schematic diagrams of the slide rail mechanism and part of the housing of an electronic device according to an exemplary embodiment of the present disclosure.

[0046] Figure 22 yes Figure 21 Enlarged view of point A in the middle;

[0047] Figure 23 The figures shown are schematic diagrams of the structure of the support for the slide rail mechanism of an electronic device according to an exemplary embodiment of the present disclosure.

[0048] Figure 24 yes Figure 14 A partially enlarged schematic diagram of the central pivot assembly;

[0049] Figure 25 yes Figure 22 A sectional view;

[0050] Figure 26 The figures shown are schematic diagrams of the slide rail mechanism of an electronic device according to another exemplary embodiment of the present disclosure. Detailed Implementation

[0051] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0052] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the disclosure. Unless otherwise defined, the technical or scientific terms used in this disclosure should be understood in their ordinary sense by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure and the claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “a” or “one,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. “A plurality” or “several” indicates two or more. Unless otherwise indicated, the terms “front,” “rear,” “lower,” and / or “upper,” and similar terms are for ease of description only and are not limited to a location or spatial orientation. The terms “comprising,” “including,” and similar terms mean that the elements or objects preceding “comprising,” encompass the elements or objects listed following “comprising,” and their equivalents, and do not exclude other elements or objects. The terms “connected,” “linked,” and similar terms are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect.

[0053] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0054] This disclosure provides a drive mechanism and an electronic device. The slide rail mechanism and electronic device of this disclosure will be described in detail below with reference to the accompanying drawings. Unless otherwise specified, the features in the following embodiments and implementations can be combined with each other.

[0055] See Figures 1 to 4 As shown, this disclosure provides an electronic device, which may be a mobile phone, mobile terminal, tablet computer, laptop computer, handheld terminal device with screen, vehicle display device, etc. The electronic device may include a housing, a flexible display screen 90, a slide rail mechanism, a rotating shaft assembly, and a drive mechanism 99.

[0056] The slide rail mechanism includes a bracket 11 and a slide rail assembly 20. The slide rail assembly 20 includes a fixed base 21, a sliding member 22 for connecting the flexible display screen 90 to the telescopic screen structure, and an elastic component 23. The fixed base 21 is fixedly connected to the bracket 11, and the sliding member 22 slides along a first direction X. Figure 3 (As shown in the vertical direction) The elastic component 23 is mounted on the fixed base 21. The first end 2301 of the elastic component 23 is connected to the fixed base 21, and the second end 2302 of the elastic component 23 is connected to the slider 22. When the slider 22 slides relative to the fixed base 21 along the first direction X, it causes 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 under the action of the slider 22, thus generating a pre-tension force on the flexible display screen 90. It can be understood that the slider 22... Figure 3 The middle arrow slides relative to the fixed seat 21, stretching the elastic component 23 to generate a reverse pulling force.

[0057] With the above configuration, the slider 22 moves relative to the fixed base 21 along the first direction X, which can drive the flexible display screen 90 of the telescopic screen structure to move together, thereby realizing the unfolding and retraction of the flexible display screen 90. The slider 22 drives the elastic component 23 to move together, which has a stretching effect on the elastic component 23 and can generate a pre-tension force on the flexible display screen 90, making the flexible display screen 90 flatter when unfolded and preventing visual problems such as screen bulging, swelling and twisting when the whole machine slides out.

[0058] In some possible implementations, 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 groove 220 corresponding to the guide rail 24, and the slider 22 is slidably disposed on the guide rail 24 through the groove 220. In this embodiment, there are four sets of guide rails 24, symmetrically arranged on the fixed base 21, making the slider 22 more stable when sliding. In other examples, the number of guide rails 24 may also be other, and this disclosure does not limit this.

[0059] In some possible implementations, the slide rail assembly 20 further includes at least one limiting stop 25, disposed at one end of the fixed base 21 away from the bracket 11. Figure 3 (As described above, the upper end) The sliding member 22 is provided with a limiting part 221 that abuts against the limiting block 25. The limiting block 25 abuts against the limiting part 221 of the sliding member 22, which can limit the starting position of the sliding member 22 and prevent the sliding member 22 from disengaging from the guide rail 24. In this embodiment, the limiting part 221 can be understood as a groove. There are two limiting blocks 25, symmetrically arranged on the fixed base 21, and two limiting parts 221, corresponding to the limiting blocks 25. This disclosure does not limit this. Figure 3 In the example shown, the limit stop 25 is located at the upper end of the fixed base 21, and the starting position of the slider 22 is located at the upper end of the fixed base 21. In this state, the elastic component 23 applies an elastic preload to the slider 22, thereby keeping the slider 22 in the starting position.

[0060] See Figures 4 to 6 As shown, in some possible embodiments, at least one side of the guide rail 24 is provided with a locking portion 241, and the sliding member 22 is provided with a first latching portion 222 that engages with the locking portion 241. The sliding member 22 engages with the locking portion 241 of the guide rail 24 through the first latching portion 222, enabling a more secure connection with the guide rail 24 and making the sliding member 22 more stable when sliding along the guide rail 24. It is understood that the locking portion 241 can be a barb structure formed by machining sheet metal to prevent the sliding member 22 from detaching from the guide rail 24. In this embodiment, the locking portion 241 is provided on both sides of the guide rail 24, and this disclosure does not limit this.

[0061] See Figure 7As shown, in some possible embodiments, the side of the slider 22 is provided with a second latching part 223 that engages with the side of the fixed seat 21. The slider 22 engages with the side of the fixed seat 21 through the second latching part 223, making the connection between the slider 22 and the fixed seat 21 more stable, preventing the slider 22 from detaching from the fixed seat 21 during sliding, and improving the stability of the slider 22 during sliding. Further, the slide rail assembly 20 also includes a plastic latch 224, which covers and latches onto the side of the fixed seat 21, with the second latching part 223 latching onto the plastic latch 224. The plastic latch 224 can reduce the friction between the second latching part 223 and the side of the fixed seat 21, reducing wear and ensuring smooth sliding. In this embodiment, the plastic latch 224 can be made of POM (Polyoxymethylene) plastic, which is a self-lubricating plastic. The sliding member 22 and the plastic buckle 224 can be combined into one part by common mold injection molding process (insert-molding). The design gap between the plastic buckle 224 and the side of the fixed base 21 is 0.05, which ensures 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.

[0062] See Figure 8 As shown, in some possible embodiments, the fixed base 21 is provided with a stepped portion 211 extending along the first direction X, and the sliding member 22 is provided with an abutting block 225 that abuts against the stepped portion 211. By the abutting block 225 cooperating with the stepped portion 211, it can be further prevented that the sliding member 22 will detach from the fixed base 21 when sliding.

[0063] See Figure 9 As shown, in some possible embodiments, the elastic component 23 includes a first rod 231, a second rod 232, and an elastic element 233. The first rod 231 and the second rod 232 are interlocked and can slide relative to each other. The elastic element 233 is connected between the first rod 231 and the second rod 232. The first rod 231 is connected to the fixed base 21, and the second rod 232 is connected to the sliding member 22. The elastic element 233 can be a spring, tension spring, etc., and has a pre-tension force during assembly to hold the sliding member 22 in its initial position. When the first rod 231 and the second rod 232 are pulled apart, the spring starts to work. 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 or compress the elastic element 233, causing the elastic element 233 to deform and thus generate an elastic force on the sliding member 22.

[0064] Furthermore, both the first rod 231 and the second rod 232 are provided with sliding grooves, allowing them to be inserted into each other and slide relative to each other. The first end of the first rod 231 ( Figure 9 The lower end shown is fixed to the fixing seat 21 by rivets, and the first end of the second rod 232 (shown as the lower end) is fixed to the fixing seat 21 by rivets. Figure 9 The upper end (shown in the diagram) is fixed to the sliding member 22 by rivets. The second end of the first rod 231 protrudes outward to form a first protrusion 234, and the second end of the second rod 232 protrudes outward to form a second protrusion 235. Multiple sets 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 members 233, causing the elastic members 233 to deform and generate a reverse pulling force on the sliding member 22, ensuring the flexible display screen is in a "taut" state.

[0065] In some possible implementations, the number of elastic components 23 is multiple, 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 both sides of the first elastic component 23A. The elastic element 233 of the first elastic component 23A extends along the first direction X, and the elastic elements 233 of the second elastic component 23B and the third elastic component 23C are symmetrically arranged along the first direction X and inclined relative to the first direction X.

[0066] Due to space limitations, a single guide rail can hardly achieve such a large elastic stroke. Through the above arrangement, the three sets of elastic components can form a relay pattern, 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 both sides of the first elastic component 23A. The initial compression of the elastic element of the first elastic component 23A can be slightly greater than the initial compression of the elastic elements of the second elastic component 23B and the third elastic component 23C, thereby increasing the sliding stroke. Assuming a total designed sliding stroke of 30.00 mm, the first elastic component 23A can start working after sliding 19 mm from the slider 22.

[0067] In some possible implementations, the slide rail assembly 20 can be riveted to the bracket 11. One end of the bracket 11 may include a connecting plate 111, and the fixing seat 21 can be made of stamped metal plate and fixed to the connecting plate 111 by riveting. 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 structural strength. The sliding member 22 can be made of SUS stainless steel plate and POM plastic through co-molding injection molding. 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, allowing it to slide against the fixing seat 21 and the guide rail 24 to reduce friction. The limiting block 25 can be made of plastic, which can limit the starting position of the sliding member 22 and prevent the sliding member 22 from detaching from the guide rail 24. The guide rail 24 can be formed by stainless steel stamping and fixed to the fixing seat 21 by spot welding. The sliding groove 220 on the slider 22 cooperates with each other to form a barbed structure, preventing the slider 22 from moving away from the guide rail 24 when sliding. The exposed surface of the slider 22 can be used as an adhesive area 226 to be glued and fixed to the flexible display screen 90.

[0068] See Figure 1 and Figure 10 As shown, this embodiment of the disclosure provides a telescopic screen structure, including a slide rail mechanism and a flexible display screen 90 as described in the above embodiment. A pivot assembly 12 is disposed on the side of the bracket 11 away from the slide rail assembly 20, and the axial direction of the pivot assembly 12 is 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 pivot assembly 12.

[0069] The rotating shaft assembly 12 includes a rotating shaft support, a rotating shaft 122, and a rotating wheel. The rotating shaft support is connected to the side of the bracket 11 away from the slide rail assembly 20. The rotating shaft support has a shaft hole, the circumferential direction of which is perpendicular to the first direction X. The rotating shaft 122 passes through the shaft hole, and the rotating wheel is sleeved on the rotating shaft 122. The flexible display screen 90 is wound around the rotating wheel, and when the flexible display screen 90 unfolds or retracts, it drives the rotating wheel to rotate. It can be understood that the first end 901 of the flexible display screen 90 is connected to the sliding member 22 of the slide rail assembly 20, and the second end 902 of the flexible display screen 90 is wound around the rotating wheel. In this embodiment, the flexible display screen 90 is formed by bonding a flexible OLED screen with a layer of extremely thin stainless steel mesh, and has great flexibility.

[0070] With the above configuration, the flexible display screen 90 is mounted around the rotating wheel of the rotating shaft assembly 12. When the flexible display screen 90 unfolds or retracts, it drives the rotating wheel to rotate, that is, the rotating wheel rotates passively. The rotating wheel can act as a pulley, making the flexible display screen 90 unfold and retract more smoothly. This effectively reduces the friction and energy loss during the unfolding or retraction process of the flexible display screen 90, allowing the flexible display screen 90 to unfold or retract more smoothly.

[0071] In some possible implementations, the rotating shaft 122 is fixedly connected to the shaft hole, and the rotating wheel is rotatably connected to the rotating shaft 122. It is understood that the rotating shaft 122 is fixedly connected to the rotating shaft support, the rotating wheel is rotatable relative to the rotating shaft 122, and the rotating shaft is not rotatable relative to the rotating shaft support. When the flexible display screen 90 unfolds or retracts, only the rotating wheel rotates.

[0072] See Figure 1 and Figure 11 As shown, in some possible embodiments, the pivot support includes multiple sub-supports 121, spaced apart on the bracket 11 along a direction perpendicular to the first direction X. Each sub-support 121 has a sub-shaft hole, and the sub-shaft holes of the multiple sub-supports 121 are coaxially arranged to form the shaft hole. The pivot 122 passes through the multiple sub-shaft holes, thereby being fixedly connected to the multiple sub-supports 121. The rotating wheel includes multiple sub-rotating wheels 123, with one sub-rotating wheel 123 located between two adjacent sub-supports 121. It is understood that by setting the pivot support as multiple sub-supports 121 and the rotating wheel as multiple sub-rotating wheels 123, with the sub-supports 121 and sub-rotating wheels 123 alternating, the rotational performance of the rotating wheel can be ensured while enhancing the strength of the pivot support and improving the overall structural strength. It is understood that each sub-support 121 of the pivot support is fixedly connected to the bracket 11, or it can be integrally formed with the bracket 11. It should be noted that the size of each sub-support 121 can be different. For example, they can be divided into small supports and large supports, with the sub-supports on both sides using small supports and the sub-supports in the middle using large supports. The size of each sub-rotor 123 can also be different. For example, they can be divided into large rotors and small rotors. This can be set according to actual needs, and this disclosure does not impose any restrictions on it.

[0073] In some possible implementations, the shaft assembly 12 further includes a plurality of first bearings 124 sleeved on the shaft 122, with one first bearing 124 on each side of the sub-rotor 123. Each first bearing 124 includes an inner bearing ring and an outer bearing ring rotatably connected to the inner bearing ring. The inner bearing ring is connected to the shaft 122, and the outer bearing ring is connected to the sub-rotor 123. It is understood that the sub-rotor 123 rotates relative to the shaft 122 via the first bearings 124. The first bearings 124 can reduce frictional losses caused by the rotation of the sub-rotor 123. The inner bearing ring and the shaft 122 can be designed to be zero-fit in the radial direction to ensure that the inner bearing ring does not rotate with the sub-rotor 123. The sub-rotor 123 and the shaft 122 can also be designed to avoid each other in the radial direction to ensure a gap between the sub-rotor 123 and the shaft 122 for rotation.

[0074] See Figure 12 As shown, to prevent the inner ring of the bearing from rotating with the sub-rotor 123, that is, to ensure that the inner ring of the bearing does not rotate relative to the shaft 122, the shaft assembly 12 further includes a plurality of bearing washers 125 sleeved on the shaft 122. Each of the first bearings 124 has one of the bearing washers 125 on its side. One end of the bearing washer 125 abuts against the inner ring of the bearing, and the other end of the bearing washer 125 abuts against the adjacent sub-support 121. In this way, the inner ring of the bearing can be pressed tightly against the adjacent sub-support 121, preventing the inner ring of the bearing from rotating with the sub-rotor 123 and ensuring that the inner ring of the bearing does not rotate relative to the shaft 122. Thus, the rotation of the sub-rotor 123 relies entirely on the rotation of the outer ring of the bearing, resulting in low frictional loss.

[0075] Optionally, in some possible embodiments, the bearing gasket 125 is made of copper or stainless steel, with a cross-section resembling a bowl shape, and has mechanical properties that allow for slight compression in the thickness direction. The bottom end of the bowl-shaped structure abuts against the inner ring of the bearing, and the rim end of the bowl-shaped structure abuts against the adjacent sub-support 121, thereby pressing the inner ring of the bearing and the adjacent sub-support 121 together.

[0076] In some possible implementations, the pivot assembly 12 further includes two sets of first fasteners 126. One end of the pivot 122 is fixedly connected to the pivot support via one set of the first fasteners 126, and the other end is fixedly connected to the pivot support via the other set of the first fasteners 126. It is understood that the first fasteners 126 pass through the outermost sub-support 121 and are fixedly connected to the end of the pivot 122, thereby fixing the pivot 122 to the pivot support. Optionally, a washer 127 is also provided between the first fasteners 126 and the pivot support. The first fasteners 126 may be male and female screws, and the washer 127 between the first fasteners 126 and the outermost sub-support 121 can make the connection between the pivot 122 and the pivot support more secure. Furthermore, the gap between the sub-support 121 and the bearing inner ring can be set to zero fit or slight interference (depending on the material and part size). In this way, the tightening force of the male and female screws at both ends creates a pressure between the bearing gasket 125 and the bearing inner ring. This pressure can ensure that the bearing inner ring does not rotate relative to the shaft 122.

[0077] In this embodiment, the sub-rotor 123 can be injection molded from engineering plastic POM, with a through hole in the middle and grooves at both ends to accommodate the first bearing 124. It is fitted onto the rotating shaft 122, and after assembly, it can passively rotate on the rotating shaft 122 via the first bearing 124. The rotating shaft 122 can be a D-shaped shaft with a D-shaped cross-section, its main function being to fix the inner ring of the bearing and prevent it from rotating relative to the rotating shaft. The rotating shaft 122 can be made of stainless steel and passes through multiple sub-supports 121. The rotating shaft 122 can have threads 1220 at both ends for fastening with the first fastener 126, and also facilitates fixing it to the middle frame of the electronic device, thereby securing the rotating shaft. The first fastener 126 can be made of metal, such as a screw, and passes through the washer 127 to lock onto the rotating shaft 122, locking the rotating shaft 122 to the rotating shaft support. The first bearing 124 can be made of stainless steel or ceramic and is mounted on the sub-rotor 123. One first bearing 124 is mounted at each end of each rotor 123, along with a bearing washer 125. The bearing washer 125 can be made of metal. When installing the sub-rotor onto the shaft, a bearing washer is placed on both sides of each rotor. The shaft passes through the inner hole of the bearing washer. After the shaft is tightened at both ends with screws, the washer fixes the inner ring of the bearing, preventing it from rotating with the outer ring, and also grounds the first bearing to the bracket.

[0078] See Figure 1 and Figure 13As shown, in some possible embodiments, the rotating shaft 122 is rotatably connected to the shaft hole, and the rotating wheel is fixedly connected to the rotating shaft 122. It is understood that the rotating shaft 122 is fixedly connected to the rotating wheel, the rotating wheel does not rotate relative to the rotating shaft 122, and the rotating shaft 122 can rotate relative to the rotating shaft support. When the flexible display screen 90 unfolds or retracts, it drives the rotating wheel and the rotating shaft 122 to rotate together.

[0079] In some possible implementations, the pivot support includes multiple sub-supports 121, spaced apart on the bracket 11 along a direction perpendicular to the first direction X. Each sub-support 121 has a sub-shaft hole, and the sub-shaft holes of the multiple sub-supports 121 are coaxially arranged to form the shaft hole. The pivot 122 passes through the multiple sub-shaft holes, thereby being fixedly connected to the multiple sub-supports 121. The rotating wheel includes multiple sub-rotating wheels 123, with one sub-rotating wheel 123 located between two adjacent sub-supports 121. It is understood that by configuring the pivot support as multiple sub-supports 121 and the rotating wheel as multiple sub-rotating wheels 123, with the sub-supports 121 and sub-rotating wheels 123 alternating, the rotational performance of the rotating wheel can be ensured while enhancing the strength of the pivot support and improving the overall structural strength. It is understood that each sub-support 121 of the pivot support is fixedly connected to the bracket 11, or it can be integrally formed with the bracket 11. It should be noted that the size of each sub-support 121 can be different. For example, they can be divided into small supports and large supports, with the sub-supports on both sides using small supports and the sub-supports in the middle using large supports. The size of each sub-rotor 123 can also be different. For example, they can be divided into large rotors and small rotors. This can be set according to actual needs, and this disclosure does not impose any restrictions on it.

[0080] In some possible embodiments, the rotating shaft assembly 12 further includes two second bearings 128, respectively sleeved at both ends of the rotating shaft 122. The ends of the rotating shaft 122 are rotatably connected to the rotating shaft support via the second bearings 128. Each second bearing 128 includes an inner bearing ring and an outer bearing ring rotatably connected to the inner bearing ring. The inner bearing ring is connected to the rotating shaft support, and the outer bearing ring is connected to the rotating shaft 122. It is understood that the rotating shaft 122 rotates relative to the sub-support 121 of the rotating shaft support via the second bearings 128, and the second bearings 128 can reduce frictional losses caused by the rotation of the rotating shaft 122. The sub-rotor 123 and the rotating shaft 122 can be designed with zero radial fit to ensure that the sub-rotor 123 rotates with the rotating shaft 122. The sub-support 121 of the rotating shaft support and the rotating shaft 122 can be designed with radial clearance to ensure that there is a gap between the sub-rotor 123 and the rotating shaft 122 to allow rotation. In this embodiment, only two second bearings 128 are needed to enable the rotating shaft 122 to rotate relative to the rotating shaft support, which reduces the number of bearings and simplifies the model design.

[0081] In some possible implementations, the shaft assembly 12 further includes two shaft covers 120, one of which abuts against the inner ring of the adjacent shaft 122 from one end of the shaft hole, and the other shaft cover 120 abuts against the inner ring of the adjacent shaft 122 from the other end of the shaft hole. By pressing the inner ring of the bearing with the shaft cover 120, the shaft 122 can be limited in the axial direction to prevent the shaft 122 from displacing in the axial direction.

[0082] In some possible implementations, the rotating shaft assembly 12 further includes a plurality of second fasteners 129, which pass through the sub-rotor 123 and are fixedly connected to the rotating shaft 122. It is understood that a sub-rotor 123 may be fixedly connected to the rotating shaft 122 by one second fastener 129, or by multiple second fasteners 129; this disclosure does not limit this.

[0083] See Figures 17 to 20 As shown, this disclosure provides an electronic device, which may be a mobile phone, mobile terminal, tablet computer, laptop computer, handheld terminal device with screen, vehicle display device, etc. The electronic device includes a housing, a telescopic screen structure as described in the above embodiment, and a drive mechanism 99.

[0084] The housing includes a first housing 91 and a second housing 92 slidably disposed on the first housing 91 along the first direction X. The first housing 91 and the second housing 92 enclose a receiving structure 991 with an opening. A telescopic screen structure is disposed within the receiving structure 991. The pivot assembly 12 is located on the side near the second housing 92. The first end 901 of the flexible display screen 90 is located on the side near the bottom of the housing. The second end 902 of the flexible display screen 90 is connected to the first housing 91 to cover the opening. A drive mechanism 99 is disposed within the receiving structure 991. The drive 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 housing 91 may be provided with a support plate 93. The second end of the flexible display screen 90 is connected to the support plate 93, and the support plate 93 can provide support and protection for the flexible display screen 90.

[0085] The drive mechanism 99 includes a frame 30 and a drive assembly and a transmission assembly mounted on the frame 30. The frame 30 may be provided with a mounting member 302 for connecting to the mid-frame of an electronic device. The mounting member 302 is fixed to the mid-frame by fasteners, thereby mounting the drive mechanism 99 onto the mid-frame. Optionally, the number of drive mechanisms 99 can be set according to actual needs. Figure 20In the example shown, there are two drive mechanisms 99, which are symmetrically arranged on the first housing 91. This allows for more stable driving of the slide rail mechanism, ensuring even force distribution on both sides of the slide rail mechanism and more stable movement.

[0086] The drive assembly includes a drive component 31 and a reduction gearbox structure 32 connected to the drive component 31. Both the drive component 31 and the reduction gearbox structure 32 are mounted on the frame 30. Optionally, the drive component 31 may be a drive motor or a drive electric motor.

[0087] The transmission assembly includes a first transmission component 14 and a second transmission component 15 movably connected to the first transmission component 14. The first transmission component 14 is installed on the frame 30 and connected to the gearbox structure 32. The second transmission component 15 is used for transmission connection with the flexible display screen of the telescopic screen structure.

[0088] The driving component 31 outputs a first torque to the reduction gearbox structure 32. The reduction gearbox structure 32 converts the first torque into a second torque and outputs it to the first transmission component 14 to drive the first transmission component 14 to rotate. The second transmission component 15 moves relative to the first transmission component 14, thereby moving the flexible display screen. The first torque is less than the second torque. It can be understood that the driving mechanism drives the slide rail mechanism to move along the first direction X, causing the second housing 92, the slide rail assembly 20, the first end of the flexible display screen 90, and the sliding component 22 to move relative to the first housing 91 along the first direction X, so that the flexible display screen 90 switches between a retracted state and an unfolded state.

[0089] With the above configuration, the drive mechanism 99 converts the first torque output by the drive component into a second torque with a larger torque through the reduction gearbox structure, and then transmits it to the first transmission component to make the first transmission component rotate, thereby driving the flexible display screen to move. It can convert the low torque of the drive component into high torque to drive the first transmission component to rotate, thereby better driving the flexible display screen to move.

[0090] In some possible implementations, the drive assembly may further include a control circuit board 312 connected to the drive member 31 for controlling the drive member 31 according to instructions. The control circuit board 312 may be a flexible FPC circuit board. The control circuit board 312 is connected to the terminal motherboard of the electronic device. When the flexible display needs to be unfolded, the terminal motherboard transmits the unfolding command to the control circuit board 312. The control circuit board 312 controls the drive motor to rotate. The drive motor amplifies its torque through the reduction gearbox structure 32, driving the second transmission member 15 to run linearly relative to the first transmission member 14. The second transmission member 15 drives the flexible display to extend outward, thus completing the unfolding action of the flexible display. When the flexible display needs to be retracted, a retraction command can be sent to the terminal motherboard by clicking the display screen of the electronic device. The terminal motherboard transmits the retraction command to the control circuit board 312. The control circuit board 312 controls the drive motor to rotate (in the opposite direction to the unfolding rotation). The drive motor amplifies its torque through the reduction gearbox structure 32, driving the second transmission member 15 to run linearly relative to the first transmission member 14. The second transmission member 15 drives the flexible display to retract to its initial position. In this embodiment, the control circuit board 312 is connected to the drive motor by soldering, and the control circuit board 312 is connected to the terminal motherboard, or connected to the motherboard terminal through a BTB connector, so as to enable the drive motor to be powered on and control the rotation of the drive motor through the control signal.

[0091] In some possible implementations, the drive motor can be a DC stepper motor, which is an open-loop controlled motor that converts electrical pulse signals into angular or linear displacement. Under non-overload conditions, the motor's speed and stopping position depend only on the frequency and number of pulse signals, and are unaffected by load changes. When the stepper driver receives a pulse signal, it drives the stepper motor to rotate a fixed angle in a set direction, rotating step by step at fixed angles. The angular displacement can be controlled by controlling the number of pulses, thus achieving accurate positioning. Simultaneously, the motor's speed and acceleration can be controlled by controlling the pulse frequency, thus achieving speed regulation and inputting rotational torque.

[0092] The first transmission component 14 is a lead screw, and the second transmission component 15 is a nut that threads with the lead screw. Both ends of the lead screw are connected to the frame 30 via bearings 141. The support 11 of the telescopic screen structure is equipped with a transmission component 13. The lead screw extends along the first direction X, and the nut abuts against the transmission component 13. The drive motor drives the lead screw to rotate, causing the nut and the transmission component to move along the first direction X, thereby causing the slide rail mechanism to move along the first direction X. It should be noted that the first and second transmission components can also adopt structures such as gear racks, worm gears, etc., and this disclosure does not impose any limitations on this.

[0093] In some possible implementations, the drive mechanism 99 further includes a guide rod 33 disposed on the frame 30, the guide rod 33 being arranged parallel to the lead screw. The nut includes a first sleeve portion 151 and a second sleeve portion 152, the first sleeve portion 151 being threadedly connected to the lead screw, and the second sleeve portion 152 being sleeved on the guide rod 33. The second transmission member 15 also has a protrusion 153 for abutting against the transmission member 13 of the support 11 of the telescopic screen structure. It can be understood that the nut is threadedly connected to the lead screw through the first sleeve portion 151, and when the lead screw rotates, the nut moves linearly relative to the lead screw. During the movement, the second sleeve portion 152 moves along the guide rod 33, which can guide the nut.

[0094] In some possible implementations, the drive unit 31 includes an output shaft 311, and the reduction gearbox structure 32 includes a first reduction gearbox and a second reduction gearbox. The first reduction gearbox includes a first gear 321, and the second reduction gearbox includes a second gear 322 and a third gear 323 (which can be understood as a lead screw tooth) that meshes with the second gear 322. The third gear 323 is connected to the first transmission member 14, the second gear 322 meshes with the first gear 321, and the first gear 321 is connected to the output shaft 311. The output shaft 311 outputs a first torque to the first gear 321, and the first torque is converted into a second torque via the second gear 322 and the third gear 323 and output to the first transmission member 14. Through the meshing of the first gear 321, the second gear 322, and the third gear 323, the low torque output by the drive motor can be converted into a high torque.

[0095] In some possible embodiments, the gearbox structure 32 further includes a gearbox end cover 34, fixedly connected to one side of the frame 30. Optionally, the side of the frame 30 is provided with a side frame 301 for fixedly connecting to the gearbox end cover 34, and the gearbox end cover 34 is fixed to the side frame 301. The gearbox end cover 34 is fixed to the side frame 301 by a plurality of fasteners 342 (e.g., screws). The first gear 321 and the second gear 322 are both connected to the gearbox end cover 34, and the third gear 323 is connected to the gearbox end cover 34 through the first transmission member 14. The gearbox end cover 34 serves to fix the first gear 321, the second gear 322, the third gear 323, and the first transmission member 14.

[0096] In some possible implementations, the first gearbox includes a first bushing 324 fixed to the gearbox end cover 34, and the first gear 321 is mounted on the first bushing 324. Optionally, the gearbox end cover 34 has a first through hole 341, the first bushing 324 is fixed to the first through hole 341, and the first gear 321 is a sun gear mounted on the first bushing 324. The second gearbox includes a limiting post 35 fixed to the gearbox end cover 34, and the second gear 322 is mounted on the limiting post 35, the limiting post 35 limiting and fixing the second gear 322.

[0097] In some possible implementations, the first transmission component 14 is a lead screw, the end of which is connected to the gearbox end cover 34 via a bearing 141, and the third gear 323 engages with the lead screw. Optionally, the gearbox end cover 34 is further provided with a second through hole 343, in which a bearing 141 is installed, and one end of the lead screw is mounted on the bearing 141, thereby fixing it to the frame 30.

[0098] In some possible implementations, the first gearbox further includes: a fixed gear ring 36, a drive gear 37, a planetary gear carrier 38, and a planetary gear 39.

[0099] The fixed gear ring 36 is connected to the drive member 31, and the output shaft 311 extends into the fixed gear ring 36.

[0100] The drive gear 37 is installed inside the fixed gear ring 36 and fixed to the output shaft 311. Optionally, the first gearbox also includes a second bushing 371, on which the drive gear 37 is installed, which can protect and limit the movement of the drive gear 37.

[0101] The planetary gear carrier 38 is installed inside the fixed gear ring 36 and is fixedly engaged with the first gear 321. Optionally, the first gearbox also includes a third bushing 381, on which the planetary gear carrier 38 is installed, which can protect and limit the movement of the planetary gear carrier 38.

[0102] The planetary gear 39 is mounted on the planetary gear carrier 38 and engages with the drive gear 37;

[0103] The output shaft 311 outputs a first torque to the drive gear 37. This first torque is reduced in speed by the drive gear 37, the planetary gear 39, and the planetary gear carrier 38 before being transmitted to the first gear 321, achieving a first-stage reduction effect. This torque is then reduced again by the first gear 321 before being transmitted to the second gear 322, achieving a second-stage reduction effect. This torque is then reduced again by the second gear 322 before being converted into a second torque and transmitted to the third gear 323, achieving a third-stage reduction effect. The third gear 323 then transmits the second torque to the first transmission member 14, driving the first transmission member 14 to rotate.

[0104] With the above configuration, the gear meshing of drive gear 37 and planetary gear 39 forms a first-stage reduction gearbox. The gear meshing of first gear 321, second gear 322, and third gear 323 forms a second- and third-stage reduction gearbox. Planetary gear 39 can serve as a first-stage reduction gear, first gear 321 as a second-stage reduction gear, second gear 322 as a third-stage reduction gear, and third gear 323 as a lead screw gear.

[0105] Understandably, the first gearbox is the core component of the drive mechanism. One end is welded to the drive motor, and the other end is welded to the frame 30. The first gearbox includes the output shaft 311 of the drive motor, drive gear 37, second bushing 371, planetary gear 39, planetary gear carrier 38, third bushing 381, fixed gear ring 36, and first gear 321. All components are fixed by gear engagement, and the output shaft 311, drive gear 37, second bushing 371, planetary gear 39, planetary gear carrier 38, third bushing 381, and first gear 321 are all fixedly fitted within the fixed gear ring. The drive gear 37 is fixed to the output shaft 311 of the drive motor, and the planetary gear carrier 38 is fixed to the first gear 321. The other end of the first gear 321 is fixed to the first bushing 324, which in turn fixes it to the gearbox end cover 34. The second gear 322 is fixed to the frame 30 and the gearbox end cover 34 by a limiting post 35. The third gear 323 is fixed to the first transmission component 14. One end of the first transmission component 14 is fixed to the frame 30 via a bearing 141, and the other end is also fixed to the gearbox end cover 34 via a bearing 141. The gearbox end cover 34 is fixed to the frame 30 via fasteners 342. The first gear 321, the second gear 322, and the third gear 323 form a two- or three-stage gearbox through gear meshing. The torque output by the drive motor is reduced by the first and second gearboxes, outputting a torque several times or tens of times greater than the original output torque to the lead screw, which then rotates. The lead screw drives the nut to move. The main function of the gearbox structure is to convert the low torque output by the drive motor into a high torque.

[0106] In some alternative embodiments, the frame 30 can be manufactured using MIM (powder metallurgy), and the hole diameters and some dimensions need to be machined using a lathe or CNC machining center. The main function of the frame 30 is to fix the gearbox structure, lead screw, nut, bearing, guide rod, and other components. Therefore, the frame 30 has high precision requirements and high flatness requirements, and the precision of the frame 30 directly affects the stability of the entire drive mechanism. The entire frame 30 can be fixed to the first housing 91 of the middle frame of the electronic device.

[0107] The nut can be made using a two-color injection molding process with MIM (powder metallurgy) and plastic. The plastic is an engineering plastic (commonly POM material), which has a self-lubricating effect. One side of the nut is fixed to the guide rod, and the other end is fixed to the lead screw. The end fixed to the lead screw needs to be designed with a lead screw guide groove to facilitate the linear movement of the nut. Based on the structural requirements of the ejection assembly, the nut is designed with a rib and side sliding component for connection and fixation, pushing the sliding component to move. The guide rod can be made of stainless steel, requiring high surface roughness, and serves to guide and fix the nut. The lead screw is generally made of high-strength tool steel, manufactured through multiple machining processes on a lathe or machining center. Bearings are fixed at both ends of the lead screw; one end is fixed to the frame, and the other end is fixed to the gearbox end cover. The drive motor drives the lead screw to rotate through the gearbox structure, and the lead screw drives the nut to move linearly. Therefore, the strength and precision of the lead screw directly affect the stability and smoothness of the nut pushing the sliding component.

[0108] See you again Figures 14 to 16 As shown, due to the pre-tightening 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 limiting block 25, it remains stationary at the starting position, while the flexible display screen 90 is in the retracted state.

[0109] The drive mechanism, as a power source, is fixed to the frame (i.e., housing) of the entire machine. After receiving instructions through the UI, the electronic device controls the drive mechanism to drive the slide rail mechanism to move along the first direction X. Figure 15 (As shown in the diagram, moving to the left) causes the slide rail mechanism to slide out relative to the first housing 91 in a direction away from 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, the flexible display screen 90 can gradually unfold as the slide rail mechanism slides out. Figure 15 As shown. During the sliding process of the slide rail mechanism, the slider 22 can move from one end of the fixed base 21 to the other end under the pull of the flexible display screen, which can further extend the unfolded length of the flexible display screen 90. In addition, during the sliding process, the elastic component is stretched by the slider 22, generating an elastic pulling force on the slider 22 in the opposite direction of the sliding direction. The flexible display screen 90 is always subjected to this pulling force in the opposite direction, which is equivalent to pulling the flexible display screen 90 to the right, making the unfolded flexible display screen 90 more flat, ensuring that the bending trajectory of the flexible display screen 90 moves according to the design intention, and preventing visual problems such as screen bulging, swelling and twisting when the whole machine slides out.

[0110] Understandably, throughout the process, the slider 22 is pulled by the second end of the flexible display screen 90, enabling it to move from one end of the fixed base 21 to the other. Assuming the slide rail mechanism slides out relative to the first housing 91 for a distance of S, and the slider 22 slides for a distance of S, then the first end of the flexible display screen 90 moves a distance of 2S relative to the first housing 91 along with the slide rail mechanism.

[0111] When the entire unit receives an external command to retract, the drive motor begins to reverse, retracting the slide rail mechanism and the flexible display screen. During this process, the bracket and fixed base move in the opposite direction under the drive mechanism, while the flexible display screen and sliding parts gradually retract under the elastic force of the elastic component. The sliding parts then return to their initial position under the elastic force of the elastic component, thus restoring the flexible display screen to its retracted state. Therefore, the slide rail mechanism disclosed herein can smoothly and effectively ensure that the flexible display screen maintains its curved shape during the sliding and retraction process, and ensures that the power loss caused by friction during the sliding and retraction process is at a low level. It offers an operable and easily implemented solution, ensuring product reliability.

[0112] See Figures 21 to 25 As shown, in some optional embodiments, the housing includes a first housing 91 and a second housing 92 slidably disposed on the first housing 91 along a first direction X. The first housing 91 and the second housing 92 enclose a receiving structure 991 with an opening. The first housing 91 is provided with a first sliding portion 911 disposed along the first direction X. A first end 901 of the flexible display screen 90 is located on a side near the bottom of the housing, and a second end 902 of the flexible display screen 90 is connected to the first housing 91 to cover the opening. In this embodiment, the opening is located at the top of the housing. Optionally, decorative elements 94 may be provided on the outer sides of the first housing 91 and the second housing 92 for both protection and decoration.

[0113] The slide rail mechanism includes a bracket 11 connected to the first end 901 of the flexible display screen 90. The bracket 11 has a second sliding part 912 adapted to the first sliding part 911. The first sliding part 911 is one of a sliding track and a sliding groove, and the second sliding part 912 is the other of a sliding track and a sliding groove. The sliding track moves along the sliding groove, causing the slide rail mechanism to drive the flexible display screen 90 to slide relative to the first housing 91 in the first direction X, thereby realizing the unfolding and retraction of the flexible display screen. Optionally, the first sliding part 911 is integrally formed with the first housing of the middle frame housing for ease of manufacturing. Figures 21 to 23 In the example shown, the first sliding part 911 is a sliding groove, and the second sliding part 912 is a sliding track. The first housing 91 is along the first direction X (e.g., Figure 21The second direction perpendicular to the X direction (as shown in the middle X direction) Figure 21 The first sliding part 911 is provided on both sides of the bracket 11 along the second direction. The second sliding part 912 is provided on both sides of the bracket 11 along the second direction. By providing two sets of first sliding parts 911 and second sliding parts 912, the slide rail mechanism can be made more stable when moving relative to the first housing 91, thereby improving the stability of the whole machine.

[0114] See Figure 26 As shown, in some optional embodiments, the sub-support 121 includes a first clamp seat 1211 and a second clamp seat 1212 spliced ​​with the first clamp seat 1211. The first clamp seat 1211 and the second clamp seat 1212 clamp the two sides of the rotating shaft 122 and are connected to each other. Either the first clamp seat 1211 and the second clamp seat 1212 are fixedly connected to the bracket 11. In the example shown in the figure, the second clamp seat 1212 is fixedly connected to the bracket 11. The sub-support 121 adopts a detachable structure in which the first clamp seat 1211 and the second clamp seat 1212 are spliced ​​together, which facilitates disassembly and installation.

[0115] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the applications disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0116] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An electronic device, characterized in that, include: The housing includes a first housing and a second housing slidably disposed on the first housing along a first direction, wherein the first housing and the second housing enclose a receiving structure having an opening; the first housing is provided with a first sliding portion disposed along the first direction; A flexible display screen, wherein a first end of the flexible display screen is located on a side near the bottom of the housing, and a second end of the flexible display screen is connected to the first housing to cover the opening; A slide rail mechanism is disposed within the receiving structure. The slide rail mechanism includes a bracket connected to the flexible display screen. The bracket is provided with a second sliding part adapted to the first sliding part. The first sliding part is one of a sliding track and a sliding groove, and the second sliding part is the other of a sliding track and a sliding groove. The sliding track moves along the sliding groove so that the slide rail mechanism drives the flexible display screen to slide relative to the first housing in the first direction. The slide rail mechanism further includes a slide rail assembly, which includes a fixed base, a sliding member, and an elastic component. The fixed base is fixedly connected to the bracket, the sliding member is slidably disposed on the fixed base along a first direction, at least a portion of the elastic component is disposed along the first direction, a first end of the elastic component along the first direction is connected to the fixed base, and a second end of the elastic component along the first direction is connected to the sliding member. The elastic component has the ability to undergo elastic deformation along the first direction. When the sliding member slides relative to the fixed base along the first direction, it drives the second end of the elastic component and the flexible display screen to move together.

2. The electronic device according to claim 1, characterized in that, The first sliding part is a sliding groove, and the second sliding part is a sliding track; the first housing is provided with the first sliding part on both sides along a second direction perpendicular to the first direction; the bracket is provided with the second sliding part on both sides along the second direction.

3. The electronic device according to claim 1, characterized in that, It also includes a drive mechanism, which is disposed within the receiving structure and fixedly connected to the first housing. The drive mechanism is connected to the bracket and is used to drive the bracket to move along the first direction. The driving mechanism drives the bracket to move along the first direction, thereby causing 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 unfolded state.

4. The electronic device according to claim 3, characterized in that, There are two drive mechanisms, symmetrically arranged in the first housing.

5. The electronic device according to claim 3, characterized in that, The drive mechanism includes a drive motor, a screw connected to the drive motor, and a nut fitted onto the screw. The screw extends along the first direction, and the nut abuts against the bracket. The drive motor drives the screw to rotate, causing the nut and the bracket to move along the first direction, thereby causing the slide rail mechanism to move along the first direction.

6. The electronic device according to claim 1, characterized in that, It also includes a rotating shaft mechanism, including a rotating shaft assembly, the rotating shaft assembly including a rotating shaft support, a rotating shaft and a rotating wheel, the rotating shaft support being connected to one side of the bracket, the rotating shaft support having a shaft hole; the rotating shaft passing through the shaft hole; and the rotating wheel being sleeved on the rotating shaft; The flexible display screen is wound around the rotating wheel, and when the flexible display screen is unfolded or retracted, it drives the rotating wheel to rotate.

7. The electronic device according to claim 6, characterized in that, The rotating shaft support includes multiple sub-supports, which are spaced apart on the bracket. Each sub-support has a sub-shaft hole. The sub-shaft holes of the multiple sub-supports are coaxially arranged to form the shaft hole. The rotating shaft passes through the multiple sub-shaft holes. The wheel includes multiple sub-wheels, with one sub-wheel located between two adjacent sub-supports.

8. The electronic device according to claim 7, characterized in that, The sub-support includes a first clamp seat and a second clamp seat spliced ​​with the first clamp seat. The first clamp seat and the second clamp seat are clamped on both sides of the rotating shaft and connected to each other.

9. The electronic device according to claim 6, characterized in that, The rotating shaft assembly further includes two sets of first fasteners. One end of the rotating shaft is fixedly connected to the rotating shaft support through one set of first fasteners, and the other end is fixedly connected to the rotating shaft support through the other set of first fasteners.

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