Slidable winding device and display device

Abstract

The present invention discloses a slidable winding device and a display device. The slidable winding device includes a fixed housing having a bearing surface; two slide rails, the two slide rails being arranged relative to each other along a first direction and movable relative to the fixed housing along a second direction, the first direction and the second direction being the extension directions of two edges of the bearing surface being perpendicular to each other, and each slide rail having a slideway on one side facing the opposite slide rail; and a support assembly, the support assembly being located between the two slide rails, the support assembly including a plurality of support bars arranged along the extension track of the slideway and extending along the first direction, the support bar including a main body and sliding parts located at both ends of the main body, the sliding parts at both ends of the support bar being located in the slideways of the two slide rails, respectively, and being slidably engaged with the slideways, with two adjacent sliding parts abutting against each other within the curved section of the slideway. The slidable winding device can ensure the stability of the support assembly during its sliding and winding motion along the slideway.

Description

Technical Field

[0001] The present invention relates to the technical field of display equipment, and in particular to a slidable winding device and a display device. Background Art

[0002] Currently, in track-type slidable winding devices, multiple support members extending in the same direction are positioned on the non-light-emitting side of the flexible display module. The ends of the support members have sliding portions that slidably engage with the runners on the track. A motor drives the track to move, and the sliding portions of the support bars slide within the runners, thereby driving the flexible display module to deploy and retract. To allow the sliding portions to enter and exit the curved area of ​​the runner without interfering with each other, a safety gap is required between adjacent sliding portions within the runner. However, this can easily cause the sliding portions to misalign and wobble in the curved area, affecting the stability of the entire device. Summary of the Invention

[0003] The present invention provides a slidable winding device and a display device. The slidable winding device can ensure the stability of a supporting component in sliding and rolling motion along a slideway.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A slidable winding device comprising:

[0006] A fixed housing having a bearing surface for placing the flexible display module;

[0007] Two slide rail portions, the two slide rail portions are arranged opposite to each other along a first direction, the slide rail portions can move relative to the fixed housing along a second direction, the first direction and the second direction are respectively the extension directions of two edges of the bearing surface that are perpendicular to each other, each of the slide rail portions has a slideway on a side facing the opposite slide rail portion, the slideway includes an unfolding section, a curved section and a winding section connected in sequence, the unfolding section extends along the second direction, the winding section is folded back to the side of the unfolding section away from the bearing surface through the curved section, and the curved section is located at one end of the slide rail portion away from the fixed housing along the second direction;

[0008] A support assembly is located between the two slide rail portions, and the support assembly includes a plurality of support bars arranged along the extension track of the slide and extending along the first direction. The support bar includes a main body and sliding parts located at both ends of the main body. The sliding parts at both ends of the support bar are respectively located in the slides of the two slide rail portions and can slide with the slides. There is a gap between the two adjacent sliding parts in the unfolding section and the winding section of the slide, and the two adjacent sliding parts in the curved section of the slide are against each other.

[0009] Optionally, in the support bar, the sliding portion extends along the first direction, and a center line of the sliding portion extending along the first direction does not coincide with a center line of the main body portion along the first direction, and the support bar further includes a connecting portion connecting the main body portion and the sliding portion.

[0010] Optionally, in the support bar, the main body has a support surface for supporting the flexible display module, and the sliding portion is arranged away from the support surface;

[0011] The angle between the plane where the center line of the main body extending in the first direction and the center line of the sliding part extending in the first direction lie and the support surface is the inclination angle of the sliding part, and the inclination angle is not equal to 90°;

[0012] When the support assembly is flattened, the inclination angles of the sliding parts in the plurality of support bars are the same.

[0013] Optionally, in the support bar, the end surface of the main body is rectangular, the end surface of the sliding portion is circular, and the length of the side of the end surface of the main body parallel to the support surface is greater than the diameter of the end surface of the sliding portion.

[0014] Optionally, when the support assembly is flattened, in the plurality of support bars, the main bodies are arranged at equal intervals, and the sliding portions located at the same end of the support bars are arranged at equal intervals.

[0015] Optionally, in the support bar, the end of the main body portion has a guide groove and a guide column that can cooperate with the guide groove;

[0016] Among the two adjacent support bars, the guide column on one support bar is located in the guide groove of the other support bar to cooperate with the guidance.

[0017] Optionally, the supporting surface on the supporting bar of the sliding portion cooperating with the unfolded section of the slideway is flush with the bearing surface.

[0018] Optionally, the support assembly further includes a limiting member located on one side of the plurality of support bars, the limiting member extends along the first direction, and two ends of the limiting member are respectively slidably engaged with the winding sections of the two slideways.

[0019] Optionally, the curved section of the slide is smoothly connected to the flattening section and the winding section.

[0020] Optionally, it also includes a movable housing and a driving mechanism;

[0021] The movable housing is located between the two slide rail portions and is fixedly connected to the slide rail portions. The movable housing is located in the area surrounded by the support assembly and is used to support the main body of the support bar. The movable housing has a retraction station and an extension station arranged along the second direction, and the extension station is located on a side of the retraction station away from the fixed housing along the second direction.

[0022] The driving mechanism is used to drive the movable housing to move between the retracting station and the unfolding station.

[0023] Optionally, the driving mechanism includes a driving motor, a threaded screw assembly, an elastic assembly, a motor push block and a movable slider; wherein,

[0024] The drive motor and the threaded screw assembly are fixed to the side surface of the fixed housing that is away from the bearing surface;

[0025] The threaded screw assembly includes a threaded rod extending along the second direction and a connecting slider threadedly connected to the threaded rod, the driving motor can drive the threaded rod to rotate along its own axis, and the motor push block is connected to the connecting slider;

[0026] The movable slider is fixed on the movable housing, the movable slider and the motor push block are arranged along the second direction, and the movable slider and the motor push block are connected through the elastic component.

[0027] Optionally, the elastic component includes a guide rod and a spring;

[0028] The guide rod extends along the second direction, one end of the guide rod passes through the motor push block, and the other end is connected to the movable slider;

[0029] The spring is sleeved on the guide rod, and two ends of the spring are respectively connected to the movable sliding block and the motor push block.

[0030] Optionally, it further includes a slider position detection module and a control module;

[0031] The slider position detection module is used to detect the position of the movable slider;

[0032] The control module is connected to the slider position detection module and the drive motor signal. The control module is used to: when the slider position detection module detects that the movable slider is approaching the motor push block, control the drive motor to rotate so that the movable housing moves from the deployment station toward the retraction station.

[0033] Optionally, the slider position detection module is located on a side of the motor push block away from the movable slider, the slider position detection module includes a Hall sensor and a magnet, and the movable slider is made of a magnetic conductive material.

[0034] The present invention also provides a display device, comprising any one of the slidable winding devices provided in the above technical solutions, and further comprising a flexible display module, wherein the non-luminous side of the flexible display module is connected to the bearing surface and the support assembly.

[0035] The present invention provides a slidable winding device and a display device, wherein the slidable winding device includes a fixed housing, two slide rail parts and a support assembly, the fixed housing includes a bearing surface for supporting a flexible display module, the two slide rail parts are arranged relative to each other along a first direction, and the slide rail parts can move relative to the fixed housing along a second direction, the slide rail parts have a slide track on the side facing the opposite slide rail part, and the support assembly is located between the two slide rail parts, the support assembly has a plurality of support bars arranged along the extension track of the slide track, and the ends of the support bars can have sliding parts that slide with the slide track. In order to prevent the sliding parts from being dislocated and shaking in the slide track, a gap can be provided between the two adjacent sliding parts when the sliding parts slide to the unfolding section and the winding section of the slide track, so as to ensure that the sliding parts do not abut each other and do not affect the movement of the support assembly in the second direction; when the sliding parts slide into the curved section, the two adjacent sliding parts can abut each other, so that the two adjacent sliding parts contact each other in the curved section and force is transmitted. During the sliding process, the sliding parts in the curved section can be evenly stressed, so as to ensure the stability of the sliding and winding movement of the support assembly along the slide track. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic structural diagram of a slidable winding device provided in an embodiment of the present invention;

[0037] Figure 2 A schematic structural diagram of a support assembly provided by an embodiment of the present invention;

[0038] Figure 3 A cross-sectional view of a slidable winding device provided by an embodiment of the present invention;

[0039] Figure 4 A schematic end view of a support bar provided in an embodiment of the present invention;

[0040] Figure 5 A schematic structural diagram of a support bar provided in an embodiment of the present invention;

[0041] Figure 6 A schematic diagram of a partial structure of a slidable winding device provided in an embodiment of the present invention;

[0042] Figure 7A schematic structural diagram of a slidable winding device provided in an embodiment of the present invention;

[0043] Figure 8 for Figure 7 Enlarged view of middle area B;

[0044] Figure 9 A state change diagram of a slidable winding device provided in an embodiment of the present invention.

[0045] icon:

[0046] 1-Fixed casing; 11-Fixed plate; 2-Slide rail; 21-Slideway; 211-Unfolding section; 212-Bending section; 213-Reeling section; 3-Support assembly; 31-Support bar; 311-Main body; 3111-Support surface; 312-Sliding part; 313-Connecting part; 314-Guide groove; 315-Guide column; 32-Limiting member; 4-Movable casing; 5-Driving mechanism; 51-Driving motor; 52-Threaded rod; 53-Connecting slider; 54-Motor push block; 55-Elastic assembly; 511-Guide rod; 512-Spring; 56-Movable slider; 57-Slider position detection module. DETAILED DESCRIPTION

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0048] Please refer to Figures 1 to 3 The present invention provides a slidable winding device, comprising:

[0049] The fixed housing 1 has a bearing surface for placing the flexible display module 100; wherein the fixed housing 1 may have a fixed plate 11, and the fixed plate 11 has the above-mentioned bearing surface, such as Figure 1 As shown;

[0050] Two slide rail parts 2 are arranged opposite to each other along a first direction x. The slide rail parts 2 can move relative to the fixed housing 1 along a second direction y. The first direction x and the second direction y are the extension directions of the two edges of the bearing surface that are perpendicular to each other. Each slide rail part 2 has a slide 21 on the side of the slide rail part 2 facing the opposite slide rail part 2. The slide 21 includes an unfolding section 211, a bending section 212 and a winding section 213 connected in sequence. The unfolding section 211 extends along the second direction y. The winding section 213 is folded back to the side of the unfolding section 211 away from the bearing surface through the bending section 212. The bending section 212 is located at one end of the slide rail part 2 away from the fixed housing 1 along the second direction y. Figure 1 As shown;

[0051] The support assembly 3 is located between the two slide rail parts 2. The support assembly 3 includes a plurality of support bars 31 arranged along the extension track of the slide 21 and extending along the first direction x. The support bar 31 includes a main body 311 and sliding parts 312 located at both ends of the main body 311. Figure 2 As shown, the sliding parts 312 at both ends of the support bar 31 are respectively located in the slideways 21 of the two slide rail parts 2 and can slide with the slideways 21. There is a gap between the two adjacent sliding parts 312 in the unfolding section 211 and the winding section 213 of the slideway 21, and the two adjacent sliding parts 312 in the curved section 212 of the slideway 21 are against each other. Figure 3 As shown in area A.

[0052] The slidable winding device provided in an embodiment of the present invention includes a fixed housing 1, two slide rails 2 and a support assembly 3. The fixed housing 1 includes a bearing surface for supporting the flexible display module 100. The two slide rails 2 are arranged relative to each other along a first direction x, and the slide rails 2 can move relative to the fixed housing 1 along a second direction y. The slide rails 2 have a slide 21 on the side facing the object slide rail 2. The support assembly 3 is located between the two slide rails 2. The support assembly 3 has a plurality of support bars 31 arranged along the extension track of the slide 21. The end of the support bar 31 can have a sliding portion 312 that slides with the slide 21. In order to avoid the sliding portion 312 from sliding, the support bar 31 can be provided with a sliding portion 312 that slides with the slide 21. The misalignment and shaking in the slide 21 can be arranged so that when the sliding part 312 slides to the unfolding section 211 and the winding section 213 of the slide 21, there is a gap between the two adjacent sliding parts 312 to ensure that the sliding parts 312 do not interfere with each other and do not affect the movement of the support component 3 along the second direction y. When the sliding part 312 slides into the curved section 212, the two adjacent sliding parts 312 can offset each other, so that the two adjacent sliding parts 312 in the curved section 212 contact each other and there is force transmission. During the sliding process, the sliding part 312 in the curved section 212 can be evenly stressed, thereby ensuring the stability of the sliding and winding movement of the support component 3 along the slide 21.

[0053] Specifically, the shape of the bearing surface on the fixed housing 1 can be rectangular, the first direction x can be the width direction or the length direction of the bearing surface, and the second direction y can correspondingly be the length direction or the width direction of the bearing surface. Here, the first direction x and the second direction y are not limited and can be determined according to actual conditions.

[0054] In an embodiment of the present invention, in the above-mentioned support bar 31, the sliding portion 312 can extend along the first direction x, and the center line of the sliding portion 312 extending along the first direction x does not coincide with the center line of the main body 311 along the first direction x. The support bar 31 also includes a connecting portion 313 connecting the main body 311 and the sliding portion 312, that is, the end of the support bar 31 forms a hook structure, and the sliding portions 312 at both ends of the support bar 31 are respectively slidably matched with the slides 21 of the two slide rail portions 2, so that the support bar 31 can slide along the extension track of the slide 21.

[0055] Specifically, in the above-mentioned support bar 31, the main body 311 has a support surface 3111 for supporting the flexible display module 100, and the sliding portion 312 is arranged away from the support surface 3111. The angle between the plane O where the center line of the main body 311 extending along the first direction x and the center line of the sliding portion 312 extending along the first direction x and the support surface 3111 is the inclination angle α of the sliding portion 312. The angle of the inclination angle α is not equal to 90°, such as Figure 2 As shown, when the support assembly 3 is flattened, the sliding portions 312 of the multiple support bars 31 have the same inclination angle. By setting the inclination angle of the sliding portions 312 of the support bars 31 to be different from 90 degrees, that is, the position of the sliding portions 312 of the support bars 31 is offset relative to the position of the main body, the sliding portions 312 can be prevented from being misaligned and wobbling within the slideway 21 when the support bars 31 slide along the extended trajectory of the slideway 21, thereby ensuring the stability of the sliding and rolling motion of the support assembly 3 along the slideway 21.

[0056] Specifically, in the above-mentioned support bar 31, Figure 4 As shown, the end face of the main body 311 can be rectangular, the end face of the sliding part 312 can be circular, and the length of the side parallel to the end face of the main body 311 and the support surface 3111 can be greater than the diameter of the end face of the sliding part 312, which can ensure that the support bars 31 do not interfere with each other during the sliding process of the support assembly 3.

[0057] Specifically, if Figure 4 As shown, the length L1 of the side parallel to the end face of the main body 311 and the support surface 3111 can be 0.8mm to 1.8mm, the width L2 of the side perpendicular to the end face of the main body 311 and the support surface 3111 can be 0.3mm to 1mm, the diameter L3 of the end face of the sliding portion 312 can be 0.5mm to 1.0mm, and the offset L4 between the center of the end face of the sliding portion 312 and the center of the end face of the support bar 31 can be 0.3mm to 1mm.

[0058] In the embodiment of the present invention, Figure 2As shown, when the support assembly 3 is flattened, the main parts 311 of the multiple support bars 31 can be arranged at equal intervals, and the sliding parts 312 located at the same end of the support bars 31 can be arranged at equal intervals, which is beneficial to the stability of the support assembly 3 when sliding and rolling along the slide 21.

[0059] In the embodiment of the present invention, the end portion of the main body 311 of the support bar 31 may have a guide groove 314 and a guide column 315 that can cooperate with the guide groove 314, such as Figure 5 As shown. In two adjacent support bars 31, the guide post 315 on one support bar 31 can be located in the guide groove 314 of the other support bar 31, as shown. Figure 6 As shown, each support bar 31 can cooperate with the guide when sliding, which is beneficial to the stability of the sliding movement of the support assembly 3.

[0060] In the above-mentioned embodiment of the invention, the support surface 3111 on the support bar 31 of the sliding portion 312 that cooperates with the unfolding section 211 of the slide 21 is flush with the bearing surface. When the flexible display module 100 is mounted on the above-mentioned slidable winding device, the flexible display module 100 can be fixed to the bearing surface of the fixed housing 1 and the support surface 3111 of the support bar 31. The flexible display module 100 can be unfolded and retracted through the movement of the slide rail portion 2 and the sliding of the support bar 31 in the support assembly 3. When the support surface 3111 on the support bar 31 connected to the unfolding section 211 of the slide 21 is flush with the bearing surface, the flatness of the flexible display panel can be ensured when unfolded.

[0061] In the embodiment of the present invention, the support assembly 3 further includes a limiting member 32 located on one side of the plurality of support bars 31. Figure 2 and Figure 3 As shown, the limit member 32 extends along the first direction x, and the two ends of the limit member 32 are respectively slidably engaged with the winding sections 213 of the two slides 21. The end of the limit member 32 can only slide in the winding section 213 of the slide 21 and cannot enter the bending section 212 of the slide 21. It can limit the support component 3 when it slides and rolls along the slide 21 to prevent the position of the end of the support component 3 from moving out of bounds.

[0062] For example, the width of the limiting member 32 along the second direction y may be greater than the width of the main body 311 of the support bar 31 along the extension direction of the slide 21 to prevent the end of the limiting member 32 from entering the curved section 212 of the slide 21 .

[0063] In the embodiment of the present invention, Figure 1As shown, in order to ensure that the sliding portion 312 on the support bar 31 smoothly enters and slides out of the curved section of the slideway 21, the curved section 212 of the slideway 21 can be smoothly connected to the flattening section and the winding section 213. Specifically, the shape of the curved section 212 can be semicircular, and the two ends of the curved section 212 can be connected to the flattening section and the winding section 213 respectively.

[0064] In the embodiment of the present invention, Figure 7 As shown, the slidable winding device further includes a movable housing 4 and a driving mechanism 5; wherein, the movable housing 4 is located between the two slide rail portions 2 and is fixedly connected to the slide rail portions 2, the movable housing 4 is located in the area enclosed by the support assembly 3 and is used to support the main body 311 of the support bar 31, the movable housing 4 has a retraction station and an expansion station arranged along the second direction y, and the expansion station is located on the side of the retraction station away from the fixed housing 1 along the second direction y; the driving mechanism 5 is used to drive the movable housing 4 to move between the retraction station and the expansion station.

[0065] Specifically, in the above-mentioned slidable winding device, the driving mechanism 5 can drive the movable housing 4 to move between the retraction station and the unfolding station. Since the movable housing 4 is fixedly connected to the slide rail portion 2, the driving mechanism 5 can drive the movable housing 4 and the slide rail portion 2 to move simultaneously. During the process of the movable housing 4 and the slide rail portion 2 moving from the retraction station to the unfolding station, that is, during the process of the movable housing 4 moving in a direction away from the fixed housing 1, the support bar 31 connected to the rewinding section 213 of the slide 21 can slide toward the unfolding section 211, thereby unfolding the flexible display module 100; and during the process of the movable housing 4 and the slide rail portion 2 moving from the unfolding station to the retraction station, that is, during the process of the movable housing 4 moving toward the fixed housing 1, the support bar 31 connected to the flattening section of the slide 21 can slide toward the rewinding section 213, thereby retracting the flexible display module 100. The number of the above-mentioned driving mechanisms 5 can be determined according to actual conditions and is not limited here.

[0066] Specifically, if Figure 8 As shown, the above-mentioned driving mechanism 5 may include a driving motor 51, a threaded screw assembly, an elastic assembly 55, a motor push block 54 and a movable slider 56; wherein, the above-mentioned driving motor 51 and the threaded screw assembly are fixed to the side of the fixed housing 1 opposite to the bearing surface; the above-mentioned threaded screw assembly includes a threaded rod 52 extending along the second direction y and a connecting slider 53 threadedly connected to the threaded rod 52, the driving motor 51 can drive the threaded rod 52 to rotate along its own axis, and the motor push block 54 is connected to the connecting slider 53; the movable slider 56 is fixed on the movable housing 4, and the movable slider 56 and the motor push block 54 are arranged along the second direction y; the movable slider 56 and the motor push block 54 are connected through the elastic assembly 55.

[0067] Specifically, Figure 8 The movable housing 4 is in the retraction position. If it moves from the retraction position to the deployment position, the driving motor 51 can drive the threaded rod 52 in the threaded screw assembly to rotate. During the rotation of the threaded rod 52, the connecting slider 53 on the threaded rod 52 moves on the threaded rod 52. The movement of the connecting slider 53 drives the motor push block 54 to move. The motor push block 54 has a thrust on the elastic component 55, and then the elastic component 55 has a thrust on the movable slider 56. After the thrust reaches a certain value, the movable slider 56 moves, thereby driving the movable housing 4 to move in the direction away from the fixed housing 1, so that the movable housing 4 moves to the deployment position, thereby enabling the flexible display module 100 to be deployed. When the movable housing 4 needs to be moved from the unfolding position to the retracting position, that is, when the flexible display module 100 needs to be retracted, the driving motor 51 can be controlled to rotate in the opposite direction, driving the connecting slider 53 on the threaded rod 52 to restore the initial position, and the connecting slider 53 drives the motor push block 54 to move back. The connecting slider 53 applies a pulling force to the elastic component 55, and the movable slider 56 is subjected to the pulling force provided by the elastic component 55. When the pulling force reaches a certain value, the movable slider 56 can drive the movable housing 4 to move toward the fixed housing 1, so that the movable housing 4 returns to the retracting position, and the unfolded part of the flexible display module 100 is retracted into the interior of the device.

[0068] In the above-mentioned slidable winding device, since the motor push block 54 and the movable slider 56 are connected via the elastic component 55, when the flexible display module 100 is in the unfolded state, as shown in FIG. Figure 9 As shown, if the movable housing 4 is impacted by an impact force F, the impact force can be transmitted to the elastic component 55. The elastic component 55 can absorb energy and compress, and the movable housing 4 is also retracted. Then, the unfolded part of the flexible display module 100 is also retracted accordingly, and the flexible display module 100 is protected.

[0069] Specifically, the elastic component 55 may include a guide rod 551 and a spring 552; the guide rod 551 extends along the second direction y, one end of the guide rod 551 passes through the motor push block 54, and the other end is connected to the movable slider 56. For example, the guide rod 551 can be threadedly connected to the movable slider 56 to ensure that the motor push block 54 and the spring 552 will not slide out of the guide rod 551; the spring 552 is sleeved on the guide rod 551, and its two ends are respectively connected to the movable slider 56 and the motor push block 54, which can provide thrust and pull to the movable slider 56, and can absorb impact kinetic energy when the flexible display module 100 is subjected to impact force, thereby protecting the flexible display module 100. Figure 8 and Figure 9 shown.

[0070] In the embodiment of the present invention, the slidable winding device may further include a slider position detection module 57 and a control module; the slider position detection module 57 is used to detect the position of the movable slider 56; the control module is connected to the slider position detection module 57 and the drive motor 51 by signal, and the control module is used to: when the slider position detection module 57 detects that the movable slider 56 is approaching the motor push block 54, control the drive motor 51 to rotate so that the movable housing 4 moves from the unfolding position to the retracting position. Figure 9 As shown, when the movable housing 4 is located in the expansion position and the flexible display module 100 is impacted by the impact force, the spring 552 is compressed to store energy, driving the movable slider 56 to move toward the motor push block 54. The position of the movable slider 56 can be detected by the slider position detection module 57. If the slider position detection module 57 detects that the movable slider 56 is close to the motor push block 54 at this time, it means that the flexible display module 100 is being impacted by the impact force. At this time, the control module can control the drive motor 51 to work, so that the movable slider 56 actively drives the movable housing back to the retraction position, thereby realizing active protection of the flexible display module 100 and extending the service life of the flexible display device.

[0071] Specifically, the slider position detection module 57 is located on the side of the motor push block 54 away from the movable slider 56. The slider position detection module 57 may include a Hall effect sensor and a magnet. The movable slider 56 is made of a magnetic conductive material. The movable slider 56 made of a magnetic conductive material and the magnet can generate a magnetic field within a certain distance. The Hall effect sensor can detect the presence of the magnetic field. By adjusting the position of the movable slider 56 and the magnet, the slider position detection module 57 can detect the position of the movable slider 56.

[0072] The present invention further provides a display device, comprising any one of the slidable winding devices provided in the above technical solutions, and further comprising a flexible display module 100 , wherein the non-luminous side of the flexible display module 100 is connected to the bearing surface and the support assembly 3 .

[0073] Obviously, those skilled in the art may make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A slidable winding device, characterized in that: include: A fixed housing having a bearing surface for placing the flexible display module; Two slide rail portions, the two slide rail portions are arranged opposite to each other along a first direction, the slide rail portions can move relative to the fixed housing along a second direction, the first direction and the second direction are respectively the extension directions of two edges of the bearing surface that are perpendicular to each other, each of the slide rail portions has a slideway on a side facing the opposite slide rail portion, the slideway includes an unfolding section, a curved section and a winding section connected in sequence, the unfolding section extends along the second direction, the winding section is folded back to the side of the unfolding section away from the bearing surface through the curved section, and the curved section is located at one end of the slide rail portion away from the fixed housing along the second direction; A support assembly, the support assembly is located between the two slide rail portions, the support assembly includes a plurality of support bars arranged along the extension track of the slide and extending along a first direction, the support bar includes a main body portion and sliding portions located at both ends of the main body portion, the sliding portions at both ends of the support bar are respectively located in the slides of the two slide rail portions and can slide with the slides, a gap is provided between two adjacent sliding portions in the unfolding section and the reeling section of the slide, and two adjacent sliding portions abut against each other in the curved section of the slide; The sliding portion extends along the first direction, and a center line of the sliding portion extending along the first direction does not coincide with a center line of the main body portion along the first direction; The main body has a support surface for supporting the flexible display module, and the sliding portion is arranged away from the support surface; The angle between the plane where the center line of the main body extending in the first direction and the center line of the sliding part extending in the first direction are located and the support surface is the inclination angle of the sliding part, and the inclination angle is not equal to 90°.

2. The slidable winding device according to claim 1, characterized in that The support bar further includes a connecting portion connecting the main body portion and the sliding portion.

3. The slidable winding device according to claim 2, characterized in that When the support assembly is flattened, the inclination angles of the sliding parts in the plurality of support bars are the same.

4. The slidable winding device according to claim 3, characterized in that In the support bar, the end surface of the main body is rectangular, the end surface of the sliding part is circular, and the length of the side of the end surface of the main body parallel to the support surface is greater than the diameter of the end surface of the sliding part.

5. The slidable winding device according to claim 4, characterized in that When the support assembly is flattened, the main bodies of the plurality of support bars are arranged at equal intervals, and the sliding parts located at the same end of the support bars are arranged at equal intervals.

6. The slidable winding device according to claim 1, characterized in that In the support bar, the end of the main body portion has a guide groove and a guide column that can cooperate with the guide groove; Among the two adjacent support bars, the guide column on one support bar is located in the guide groove of the other support bar to cooperate with the guidance.

7. The slidable winding device according to claim 1, characterized in that The supporting surface on the supporting bar of the sliding portion that cooperates with the unfolding section of the slideway is flush with the bearing surface.

8. The slidable winding device according to claim 1, characterized in that The support assembly further includes a limiting member located on one side of the plurality of support bars, the limiting member extends along a first direction, and two ends of the limiting member are respectively slidably engaged with the winding sections of the two slideways.

9. The slidable winding device according to claim 1, characterized in that The curved section of the slideway is smoothly connected to the unfolding section and the winding section.

10. The slidable winding device according to any one of claims 1 to 9, characterized in that: It also includes a movable casing and a driving mechanism; The movable housing is located between the two slide rail portions and is fixedly connected to the slide rail portions. The movable housing is located in the area surrounded by the support assembly and is used to support the main body of the support bar. The movable housing has a retraction station and an extension station arranged along the second direction, and the extension station is located on a side of the retraction station away from the fixed housing along the second direction. The driving mechanism is used to drive the movable housing to move between the retracting station and the unfolding station.

11. The slidable winding device according to claim 10, characterized in that The driving mechanism includes a driving motor, a threaded screw assembly, an elastic assembly, a motor push block and a movable slider; wherein, The drive motor and the threaded screw assembly are fixed to the side surface of the fixed housing that is away from the bearing surface; The threaded screw assembly includes a threaded rod extending along the second direction and a connecting slider threadedly connected to the threaded rod, the driving motor can drive the threaded rod to rotate along its own axis, and the motor push block is connected to the connecting slider; The movable slider is fixed on the movable housing, the movable slider and the motor push block are arranged along the second direction, and the movable slider and the motor push block are connected through the elastic component.

12. The slidable winding device according to claim 11, characterized in that The elastic component includes a guide rod and a spring; The guide rod extends along the second direction, one end of the guide rod passes through the motor push block, and the other end is connected to the movable slider; The spring is sleeved on the guide rod, and two ends of the spring are respectively connected to the movable sliding block and the motor push block.

13. The slidable winding device according to claim 12, characterized in that Also included is a slider position detection module and a control module; The slider position detection module is used to detect the position of the movable slider; The control module is connected to the slider position detection module and the drive motor signal. The control module is used to: when the slider position detection module detects that the movable slider is approaching the motor push block, control the drive motor to rotate so that the movable housing moves from the deployment station toward the retraction station.

14. The slidable winding device according to claim 13, characterized in that The slider position detection module is located on a side of the motor push block away from the movable slider. The slider position detection module includes a Hall sensor and a magnet. The movable slider is made of a magnetic conductive material.

15. A display device, characterized in that: It comprises the slidable winding device according to any one of claims 1 to 14, and further comprises a flexible display module, wherein the non-luminous side of the flexible display module is connected to the bearing surface and the supporting assembly.

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