Electronic device and screen support assembly thereof

Abstract

The present application relates to an electronic device and its screen support assembly, the screen support assembly including a first support member, a second support member and a plurality of rolling members, the first support member having a first support surface, the first support surface being provided with a plurality of grooves, the second support member including a spine bar and a plurality of skeletons connected to the spine bar, the plurality of skeletons being movably arranged in the plurality of grooves, the plurality of rolling members being connected to the plurality of skeletons and being able to move along the grooves with the skeletons, the rolling members being used to roll in contact with the screen and one of the first support member. In the electronic device and its screen support assembly of the present application, the rolling member arranged on the second support member rolls in contact with the screen and one of the first support member to reduce the sliding friction between the second support member and the adjacent structure during the extension and retraction of the flexible screen, so as to improve the smoothness of the extension and retraction movement of the screen while utilizing the first support member and the second support member to provide good support for the screen.

Description

Technical Field

[0001] The present application relates to the technical field of electronic devices, and in particular to electronic devices and screen support components thereof. Background Art

[0002] In today's intelligent information age, users are using mobile devices more frequently and in increasingly diverse scenarios. Currently, most portable smart mobile devices have screen sizes under 7 inches. Compared to tablets and laptops, these devices have limited display area and a limited user experience.

[0003] The emergence of flexible screens effectively solves this problem. By bending or curling, a large screen can be stored in a small body, making it easy for users to carry. At the same time, the small screen can be used as a normal mobile phone, and when switched to the large screen, it can be used for news reading and social chatting. It can also enhance the user's gaming experience, greatly enriching user usage scenarios.

[0004] However, current flexible screen structures still present numerous challenges. For example, when a flexible screen is curved to adjust the display area, the screen may lack adequate support, resulting in poor flatness. Alternatively, the support structure may prevent the screen from expanding or contracting smoothly, or even prevent it from expanding or contracting properly due to excessive resistance. Summary of the Invention

[0005] The present application provides an electronic device and a screen support assembly thereof to solve the technical problem of how to improve the smoothness of the flexible screen's telescopic movement while maintaining good support for the flexible screen.

[0006] In a first aspect, an embodiment of the present application provides a screen support assembly, comprising:

[0007] The first support member has a first support surface, wherein the first support surface is provided with a plurality of grooves, wherein the plurality of grooves extend along a first direction and are arranged parallel to each other along a second direction, wherein the second direction is perpendicular to the first direction.

[0008] A second support member includes a spine bar and a plurality of frames connected to the spine bar, wherein the plurality of frames are arranged in a comb-like shape and are movably disposed in the plurality of grooves, and the frames have a second support surface, and the second support surface and the first support surface are used together to support the screen;

[0009] A plurality of rolling members are connected to the plurality of the frames and can move along the groove with the frames, and the rolling members are used for rolling contact with one of the screen and the first support member.

[0010] On the other hand, an embodiment of the present application provides an electronic device, including a shell assembly, a flexible screen, and a screen support assembly as described above, wherein the shell assembly includes a first shell and a second shell, the first shell and the second shell can move relative to each other in a first direction, the flexible screen is connected to the first shell and the second shell, and part of the structure of the flexible screen is extended from or retracted into the shell assembly as the first shell and the second shell move relative to each other, and the screen support assembly is used to support the part of the flexible screen extended from the shell assembly.

[0011] In an embodiment of the present application, during the extension and retraction of the screen, the first support member and the second support member can be used to support the screen. Since the rolling member provided on the second support member only rolls in contact with one of the screen and the first support member, the sliding friction between the second support member and the screen or the first support member during the extension and retraction of the flexible screen can be reduced, thereby improving the smoothness of the screen extension and retraction movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0013] Figure 1 A schematic diagram of the electronic device in a collapsed state provided by an embodiment of the present application;

[0014] Figure 2 A schematic cross-sectional view of an electronic device provided in an embodiment of the present application;

[0015] Figure 3 A schematic diagram of an electronic device in an extended state provided by an embodiment of the present application;

[0016] Figure 4 A schematic cross-sectional view of another state of the electronic device provided by an embodiment of the present application;

[0017] Figure 5 Schematic diagram of a screen support assembly supporting a flexible screen in one embodiment;

[0018] Figure 6 This is a schematic structural diagram of a screen support assembly of an electronic device according to one embodiment;

[0019] Figure 7 for Figure 6 Another schematic diagram of the screen support assembly is shown;

[0020] Figure 8is a schematic cross-sectional structural diagram of a screen support assembly in one state according to one embodiment;

[0021] Figure 9 is a schematic cross-sectional structural diagram of another state of a screen support assembly according to one embodiment;

[0022] Figure 10 for Figure 7 A partial enlarged schematic diagram of the structure of part A of the screen support assembly is shown;

[0023] Figure 11 Schematic diagram of the connection between the second supporting member and the rolling member in the screen supporting assembly according to one embodiment;

[0024] Figure 12 for Figure 7 A partial enlarged schematic diagram of the structure of part B of the screen support assembly is shown;

[0025] Figure 13 This is a schematic diagram of the connection between the second supporting member and the rolling member in the screen supporting assembly according to another embodiment;

[0026] Figure 14 for Figure 13 A local enlarged schematic diagram of the structure of part D in FIG;

[0027] Figure 15 is a schematic cross-sectional structural diagram of a screen support assembly along a second direction according to one embodiment;

[0028] Figure 16 for Figure 15 A locally enlarged schematic diagram of the structure of part D in FIG.

[0029] Description of Figure Numbers:

[0030] 100. Electronic device; 10. Shell assembly; 10a. Receiving cavity; 12. First shell; 14. Second shell; 14a. Back cover; 20. Flexible screen; 202. Fixed portion; 204. Free portion; 20a. Display interface; 30. Traction member; 40. Driving mechanism; 50. Screen support assembly; 51. First support member; 51a. First support surface; 511. Groove; 512. Limiting groove; 52. Second support member; 52a. Second support surface; 52b. Back surface; 521. Spine bar; 521a. Positioning pin; 522. Skeleton; 53. Rolling member; 531. Roller; 532. Shaft; 54. Sliding fitting member; 541. Main body; 542. Sliding fitting portion. DETAILED DESCRIPTION

[0031] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.

[0032] As used herein, "electronic device" refers to a device that can receive and / or send communication signals, including but not limited to a device that is connected via any one or more of the following connection methods:

[0033] (1) Connection via a wired line, such as Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, or direct cable connection;

[0034] (2) Via wireless interfaces, such as cellular networks, wireless local area networks (WLAN), digital television networks such as DVB-H networks, satellite networks, and AM-FM broadcast transmitters.

[0035] An electronic device configured to communicate via a wireless interface may be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following electronic devices:

[0036] (1) Satellite phone or cellular phone;

[0037] (2) Personal Communications System (PCS) terminals that can combine cellular radiotelephones with data processing, fax, and data communications capabilities;

[0038] (3) Radiotelephone, pager, Internet / Intranet access, Web browser, notepad, calendar, Personal Digital Assistant (PDA) equipped with a Global Positioning System (GPS) receiver;

[0039] (4) conventional laptop and / or palmtop receivers;

[0040] (5) Conventional laptop and / or palmtop radiotelephone transceivers, etc.

[0041] See also Figure 1 and Figure 2The electronic device 100 provided in the embodiment of the present application can be a mobile phone or a tablet computer, which is not limited here.

[0042] The electronic device 100 includes a shell assembly 10 and a flexible screen 20. The shell assembly 10 forms a receiving cavity 10a, and the flexible screen 20 is connected to the shell assembly 10. The electronic device 100 may further include a circuit board (not shown) and a battery (not shown), and both the circuit board and the battery may be arranged in the receiving cavity 10a of the shell assembly 10. The circuit board may integrate the processor, power management module, storage unit, baseband chip, etc. of the electronic device 100. The flexible screen 20 is communicatively connected to the processor, and the battery can power the flexible screen 20 and the electronic components on the circuit board. Of course, the electronic device 100 may further include a camera module (not shown), which is communicatively connected to the circuit board, and the battery can power the camera module. It will be understood that the electronic device 100 of the embodiment of the present application includes but is not limited to terminal devices such as mobile phones and tablet computers or other portable electronic devices 100. In the embodiment of the present application, a mobile phone is taken as an example for illustration.

[0043] Combine Figure 3 and Figure 4 The housing assembly 10 includes a first housing 12 and a second housing 14. The second housing 14 and the first housing 12 are capable of relative movement in a first direction. Specifically, in this embodiment, the second housing 14 and the first housing 12 are slidably connected. In other words, the second housing 14 is capable of sliding relative to the first housing 12. For example, one of the first housing 12 and the second housing 14 may be provided with a slide rail, and the other may slide along the slide rail, so that the first housing 12 and the second housing 14 can telescope relative to each other.

[0044] The flexible screen 20 is connected to the first shell 12 and the second shell 14. As the first shell 12 and the second shell 14 move relative to each other, part of the structure of the flexible screen 20 is extended from or retracted into the shell assembly 10 to adjust the extended length of the flexible screen 20.

[0045] Furthermore, the second housing 14 can slide relative to the first housing 12 along the first direction to a folded position and an unfolded position. Figure 1 and Figure 2 As shown, when the second housing 14 is in the folded position, the electronic device 100 has a relatively small size and is easy to carry. Figure 3 and Figure 4As shown, when the second housing 14 is in the unfolded position, the electronic device 100 can obtain a relatively large display area, thereby obtaining a large-screen display visual experience, thereby improving the user experience of the electronic device 100. Therefore, through this configuration, the display area of ​​the flexible screen 20 (hereinafter referred to as the display interface 20a) can be adjusted by the relative sliding and extension of the first housing 12 and the second housing 14.

[0046] It should be noted that the flexible screen 20, as a structural component used by the electronic device 100 for display or touch control, has a display area. The display area refers to the area corresponding to the maximum display screen of the flexible screen 20. In other words, when the first shell 12 and the second shell 14 slide and retract relative to each other, when the second shell 14 is in the unfolded position, that is, when the display interface 20a is at its maximum, the display interface 20a is the same as the display area. Because the first shell 12 and the second shell 14 slide and retract relative to each other, part of the display area of ​​the flexible screen 20 is contained inside and not exposed, so this part does not show a display screen. The display interface 20a refers to the part of the display area that is exposed between the first shell 12 and the second shell 14. Then, when the display interface 20a is lit or displays a screen, the content displayed on the display interface 20a can be observed from the outside of the electronic device 100.

[0047] It is understood that in the embodiments of the present application that follow, expressions such as the retracted position, the extended position, and similar expressions all refer to the relative position of the second housing 14 to the first housing 12. For simplicity, expressions such as "the second housing 14 is in the retracted position" or "when in the retracted position" refer to the second housing 14 being in the retracted position relative to the first housing 12, and expressions such as "the second housing 14 is in the extended position" or "when in the extended position" refer to the second housing 14 being in the extended position relative to the first housing 12.

[0048] Combine Figure 2 and Figure 4 As shown, the flexible screen 20 may include a fixed portion 202 and a free portion 204 disposed in opposing relation. The fixed portion 202 is disposed on the first housing 12 and is fixed relative to the position of the first housing 12. When the second housing 14 is in the retracted position, the free portion 204 of the flexible screen 20 is accommodated within the housing assembly 10, thereby partially concealing the structure of the flexible screen 20 within the housing assembly 10. The portion of the flexible screen 20 concealed within the housing assembly 10 is not used for display. In other words, movement of the first housing 12 relative to the second housing 14 can cause at least a portion of the free portion 204 to unfold within the second housing 14, or cause the free portion 204 that has unfolded within the second housing 14 to retract within the housing assembly 10.

[0049] It is understood that in the embodiments of the present application, the relative fixed positions of two objects means that the two objects cannot produce relative movement under normal circumstances. The two objects that are relatively fixed in position can be physically directly connected or indirectly connected through an intermediate structure. Taking the fixing portion 202 and the first shell 12 as an example, the relative fixed positions of the fixing portion 202 and the first shell 12 can be directly in contact with the first shell 12, such as by using threaded fasteners or clamping to achieve direct fixation of the fixing portion 202 and the first shell 12, or the fixing portion 202 can be indirectly fixed to the first shell 12 through structures such as an adhesive layer, an intermediate connecting plate, etc.

[0050] It is understood that the fixed portion 202 and the free portion 204 can be distinguished in the following manner, referring to Figure 2 As shown, when the second housing 14 is in the retracted position relative to the first housing 12, the portion of the flexible screen 20 exposed outside the housing assembly 10 is the fixed portion 202 of the flexible screen 20, and the portion of the flexible screen 20 housed within the housing assembly 10 is the free portion 204. In some embodiments, when the second housing 14 is in the retracted position, the fixed portion 202 exposed outside the housing assembly 10 is generally rectangular and can be sized between 4.5 inches and 7 inches, comparable to the size of a typical smartphone display, making the electronic device 100 portable and convenient to use.

[0051] In some embodiments, combined Figure 4 As shown, the electronic device 100 is provided with a traction member 30, which is arranged at the end of the second housing 14 away from the first housing 12. When the second housing 14 switches from a retracted position to an extended position relative to the first housing 12, the traction member 30 can pull the flexible screen 20 to deform, so that the portion of the flexible screen 20 extended from the second housing 14 is flat. When the second housing 14 is in the retracted position, the free portion of the flexible screen 20 bypasses the traction member 30. The traction member 30 can limit the bending radius of the flexible screen 20 to an appropriate range to prevent damage to the flexible screen 20 caused by an excessively small bending radius. Of course, the traction member 30 can also prevent the flexible screen 20 from being too thick due to an excessively large bending radius.

[0052] In some embodiments, the traction member 30 may be a rotating shaft structure with protruding teeth, and the flexible screen 20 is linked to the traction member 30 by means of engagement or other means. When the second housing 14 slides relative to the first housing 12, the traction member 30 drives the portion of the flexible screen 20 engaged with the traction member 30 to move and be extended from or retracted into the housing assembly 10.

[0053] In other embodiments, the traction member 30 is a circular shaft without teeth. As the second housing 14 switches from the collapsed position to the deployed position, the traction member 30 stretches the portion of the flexible screen 20 affixed to the traction member 30, exposing more of the flexible screen 20 outside the housing assembly 10 and maintaining a flat position. In this embodiment, the traction member 30 is rotatably mounted on the second housing 14. As the flexible screen 20 is gradually deployed, the traction member 30 rotates with the movement of the flexible screen 20, thereby reducing resistance to the flexible screen 20 during deployment and minimizing wear at the contact area between the traction member 30 and the flexible screen 20.

[0054] In some embodiments, the traction member 30 may also be fixed to the second housing 14 and have a smooth surface. During the process of deploying the flexible screen 20 into the second housing 14, the traction member 30, through its smooth surface, can slidably contact the flexible screen 20. In other words, in this embodiment, the traction member 30 may be integrally formed or welded with the second housing 14, and the traction member 30 may be considered part of the second housing 14. The free portion 204 of the flexible screen 20 bypasses the end of the second housing 14 away from the first housing 12 and extends into the housing assembly 10.

[0055] During the switching process of the second housing 14 from the folded position to the extended position, the flexible screen 20 can be extended from the second housing 14 or retracted into the housing assembly 10 under the pull member 30. It is understood that multiple intermediate positions can be set between the folded position and the extended position to achieve the positioning of the second housing 14 relative to the first housing 12 at multiple intermediate positions, and the flexible screen 20 has different display areas in different intermediate positions, thereby expanding the use scenarios of the electronic device 100.

[0056] The relative movement between the first housing 12 and the second housing 14 of the electronic device 100 can be achieved manually or electrically.

[0057] For example, when manually opening and closing the electronic device 100, the user can simply hold the first housing 12 and the second housing 14 and move them away from each other to place the second housing 14 in the extended position. Accordingly, when the second housing 14 is in the extended position, if the electronic device 100 needs to be folded, the user can simply move the first housing 12 and the second housing 14 toward each other.

[0058] Combine Figure 2 and Figure 4As shown, when an electronic control method is adopted, a driving mechanism 40 can be provided in the housing assembly 10 of the electronic device 100. Specifically, the driving mechanism 40 is provided in the receiving cavity 10a of the housing assembly 10 and is used to drive the first housing 12 and the second housing 14 to move relative to each other, so that the second housing 14 drives the flexible screen 20 to be extended from or retracted into the housing assembly 10.

[0059] In some embodiments, the first housing 12 and the second housing 14 are connected to a drive mechanism 40 and are driven by the drive mechanism 40 to move relative to each other. Specifically, the drive mechanism 40 includes a fixed portion and a movable portion. When the drive mechanism 40 is in operation, the movable portion is capable of moving relative to the fixed portion. The fixed portion is connected to the first housing 12, and the movable portion is connected to the second housing 14 and is used to drive the second housing 14 to move relative to the first housing 12.

[0060] The second housing 14 may further include a rear cover 14 a that covers the free portion 204 of the flexible screen 20 when in the unfolded position.

[0061] Furthermore, the back cover 14a can be provided with a light-transmitting area, and the portion of the flexible screen 20 housed in the shell assembly 10 in the unfolded position can also be used for display, so that the user can view the information displayed on the flexible screen 20 from the light-transmitting area, thereby expanding the use scenario of the electronic device 100. For example, in this embodiment, the electronic device 100 does not need to be provided with a front camera, and a rear-mounted camera module can be used to achieve functions such as selfies and video calls. The light-transmitting area can be made of transparent glass, or it can be formed by an opening in the back cover 14a. After the second shell 14 slides to the retracted position relative to the first shell 12, at least part of the flexible screen 20 housed in the shell assembly 10 is exposed. The exposed flexible screen 20 can be used for display, so that the electronic device 100 has a relatively large display area to enhance the user experience.

[0062] Combine Figure 5 As shown, the electronic device 100 includes a screen support assembly 50, which is used to support the portion of the flexible screen 20 extended from the shell assembly 10, thereby maintaining good flatness of the display interface 20a of the flexible screen 20 and improving the texture of the display image.

[0063] Specifically, combined Figures 6 to 9 As shown, the screen support assembly 50 includes a first support member 51 , a second support member 52 and a rolling member 53 .

[0064] The first support member 51 has a first support surface 51a defined by a plurality of grooves 511. The grooves 511 extend in a first direction and are arranged parallel to each other in a second direction perpendicular to the first direction. The second support member 52 includes a spine bar 521 and a plurality of ribs 522 connected to the spine bar 521. The ribs 522 are arranged in a comb-like pattern and are movably disposed within the grooves 511. The ribs 522 have second support surfaces 52a that, together with the first support surfaces 51a, support the flexible screen 20. Because the grooves 511 extend in the first direction, the ribs 522 can move within the grooves 511 in the first direction. As the flexible screen 20 expands and contracts with the housing assembly 10 in the first direction, the first support member 51 and the second support member 52 move relative to each other in the first direction to accommodate the portion of the flexible screen 20 that extends from the housing assembly 10.

[0065] The first support member 51 is fixed relative to the first housing 12, and the spine bar 521 is fixed relative to the second housing 14. Thus, the frame 522 on the spine bar 521 can move along with the second housing 14. Therefore, when the first housing 12 and the second housing 14 move relative to each other in the first direction, the frame 522, driven by the second housing 14, moves relative to the first support member 51 in the first direction. The frame 522 then moves along the corresponding groove 511 to provide support for the flexible screen 20.

[0066] like Figure 5 and Figure 6 As shown, in an embodiment in which the flexible screen 20 has a fixed portion 202 and a free portion 204, the fixed portion 202 is connected to the first support member 51, and the free portion 204 surrounds the side of the second support member 52 close to the spine bar 521, and can move relative to the second support member 52 with the relative movement of the first shell 12 and the second shell 14, so that when the flexible screen 20 extends or contracts with the relative movement of the first shell 12 and the second shell 14, the first support member 51 and the second support member 52 can always support the parts of the flexible screen 20 extended from the shell assembly 10.

[0067] The spine bar 521 can be connected to the second shell 14 by snapping, or the spine bar 521 can be connected to the second shell 14 by screws. The connection method between the spine bar 521 and the second shell 14 is not limited here. By connecting the spine bar 521 to the second shell 14, the spine bar 521 can move with the second shell 14 relative to the first support member 51. For example, in combination Figure 8 and Figure 9As shown, when the second housing 14 moves, the second support member 52 moves with the second housing 14 relative to the first support member 51, and the first support member 51 and the second support member 52 jointly support the unfolded portion of the flexible screen 20. Because the rolling member 53 only rolls with one of the flexible screen 20 and the first support member 51 during the unfolding process of the flexible screen 20, sliding friction caused by the rolling member 53 contacting both the flexible screen 20 and the first support member 51 is avoided, effectively improving the smoothness of the flexible screen 20's telescopic movement.

[0068] It should be noted that there can be multiple rolling members 53, and the multiple rolling members 53 are connected to the multiple skeletons 522 and can move along the groove 511 with the skeletons 522. The rolling members 53 are used to roll in contact with one of the flexible screen 20 and the first support member 51. In this way, the rolling friction between the rolling members 53 and the corresponding structural members is utilized to reduce the sliding friction between the skeleton 522 and the first support member 51 or between the skeleton 522 and the flexible screen 20, thereby allowing the flexible screen 20 to be smoothly deployed.

[0069] Combine Figure 10 As shown, the skeleton 522 has a back side 52b opposite to the second support surface 52a, and the skeleton 522 is provided with a mounting groove, which passes through the second support surface 52a and the back side 52b. The rolling member 53 is installed in the mounting groove, and the rolling member 53 extends from the mounting groove to the second support surface 52a and the back side 52b. The rolling diameter of the rolling member 53 is smaller than the distance between the screen and the bottom wall of the groove 511, so that the rolling member 53 can only roll in contact with one of the flexible screen 20 and the bottom wall of the groove 511 at all times, so as to effectively improve the smoothness of the relative movement between the first support member 51 and the second support member 52.

[0070] In other embodiments, the second support surface 52a is provided with a mounting groove, the rolling member 53 is mounted in the mounting groove, and the rolling member 53 extends from the mounting groove to the side of the second support surface 52a of the frame 522, and is configured to roll with the flexible screen 20. In other embodiments, the frame 522 has a back surface 52b opposite to the second support surface 52a, and the back surface 52b is provided with a mounting groove, the rolling member 53 is mounted in the mounting groove, and the rolling member 53 extends from the mounting groove to the side of the back surface 52b of the frame 522, and is configured to roll with the first support member 51.

[0071] Continue reading Figure 10 As shown, in some embodiments, the rolling element 53 includes a roller 531 and a shaft 532 , and the roller 531 is rotatably connected to the skeleton 522 via the shaft 532 .

[0072] Furthermore, the first support member 51 and the second support member 52 are made of metal, and the roller 531 is made of polyoxymethylene, polyvinylidene fluoride or nylon 65.

[0073] In other embodiments, the rolling element 53 includes a cylindrical ball or a spherical ball, a ball retainer is provided in the mounting groove, and the cylindrical ball or the spherical ball is connected to the frame 522 through the ball retainer.

[0074] The rolling member 53 is disposed at the end of the frame 522 away from the spine bar 521. When the flexible screen 20 is fully extended, the rolling member 53 remains within the groove 511. Specifically, the second support member 52 always overlaps with the first support member 51 in the third direction, so that the screen support assembly 50 can effectively support the flexible screen 20. The third direction is perpendicular to the first and second directions.

[0075] It should be noted that the number of rolling elements 53 on the skeleton 522 is not limited. For example, Figure 6 and Figure 7 As shown, each skeleton 522 is provided with a rolling element 53. For another example, in some embodiments, each skeleton 522 is provided with multiple rolling elements 53, such as 2 or more rolling elements 53. For example, Figure 11 As shown, two rolling members 53 are provided on each skeleton 522 , so that the rolling members 53 can provide smooth movement of the skeleton 522 in the groove 511 , and the rolling members 53 can support the skeleton 522 so that the skeleton 522 can stably support the flexible screen 20 .

[0076] Combine Figures 12 to 14 As shown, the screen support assembly 50 includes a sliding member 54. The groove wall of the groove 511 is provided with a limiting groove 512 extending along a first direction. The sliding member 54 is connected to the frame 522 and slidably engages with the limiting groove 512. Consequently, when the first support member 51 and the second support member 52 move relative to each other in the first direction, the sliding member 54 slides along the limiting groove 512. In this embodiment, the sliding member 54 is used to limit the frame 522 in the second direction, thereby maintaining a gap between the frame 522 and the sidewall of the groove 511. Specifically, due to the engagement of the sliding member 54 with the limiting groove 512, a gap is maintained between the frame 522 and the sidewall of the groove 511, thereby reducing the contact surface between the frame 522 and the first support member 51, thereby reducing the contact friction between the first support member 51 and the second support member 52. The frictional resistance between the two is reduced, thereby allowing the first support member 51 and the second support member 52 to support the flexible screen 20 while allowing smooth movement between them.

[0077] like Figure 13 As shown, the sliding fitting 54 is arranged at one end of the skeleton 522 away from the spine bar 521 , so that the sliding fitting 54 can play a sliding effect at the end position of the skeleton 522 .

[0078] In some embodiments, the sliding fitting 54 is made of polyoxymethylene, polyvinylidene fluoride, or nylon 65, so that the sliding fitting 54 has a self-lubricating property, thereby improving the smoothness of the relative movement between the first support member 51 and the second support member 52 .

[0079] Combine Figure 13 and Figure 14 As shown, the sliding fitting member 54 includes a main body 541 and a sliding fitting portion 542 connected to each other. The main body 541 is connected to the frame 522 , and the sliding fitting portion 542 protrudes from the side of the frame 522 and slides with the limiting groove 512 .

[0080] Combine Figure 15 and Figure 16 As shown, along the second direction, there is a gap between the sliding fitting portion 542 and the groove wall of the limiting groove 512, and the gap between the sliding fitting portion 542 and the groove wall of the limiting groove 512 is smaller than the gap between the skeleton 522 and the groove wall of the groove 511, so that in the process of the skeleton 522 moving along the groove 511, in this second direction, the sliding fitting portion 542 preferentially contacts the groove wall of the limiting groove 512, so that the skeleton 522 does not contact the groove wall of the groove 511, thereby reducing the contact friction between the skeleton 522 and the groove wall of the groove 511, so that the movement of the skeleton 522 in the groove 511 is smoother, so as to improve the smoothness of the telescopic movement of the screen support assembly 50 with the shell assembly 10 as a whole, provide good support for the flexible screen 20, and ensure the smooth telescopic movement of the flexible screen 20.

[0081] In some embodiments, along the third direction, a gap exists between the sliding engagement portion 542 and the wall of the limiting groove 512. That is, in this third direction, the sliding engagement portion 542 does not contact the wall of the limiting groove 512, thereby allowing the sliding engagement portion 542 to move smoothly along the limiting groove 512. It should be noted that in this embodiment, the gap between the sliding engagement portion 542 and the wall of the limiting groove 512 is greater than the gap between the rolling element 53 and the wall of the groove 511. This structural arrangement allows the rolling element 53 to preferentially contact the wall of the groove 511 in the third direction, resulting in rolling friction between the rolling element 53 and the wall of the groove 511. Compared to sliding friction between the sliding engagement portion 542 and the wall of the limiting groove 512, this can further reduce frictional resistance during movement of the skeleton 522 along the groove 511, thereby improving the smoothness of the telescopic movement of the screen support assembly 50 with the housing assembly 10.

[0082] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A screen support assembly, characterized in that: include: The first support member has a first support surface, wherein the first support surface is provided with a plurality of grooves, wherein the plurality of grooves extend along a first direction and are arranged parallel to each other along a second direction, wherein the second direction is perpendicular to the first direction. A second support member includes a spine bar and a plurality of frames connected to the spine bar, wherein the plurality of frames are arranged in a comb-like shape and are movably disposed in the plurality of grooves, and wherein the frames have a second support surface, and the second support surface and the first support surface are used together to support the portion of the screen of the electronic device extended from the housing assembly; A plurality of rolling members are connected to the plurality of the frames and can move along the groove with the frames, and the rolling members are used for rolling contact with one of the screen and the first support member.

2. The screen support assembly according to claim 1, characterized in that: The second supporting surface is provided with a mounting groove, the rolling element is mounted in the mounting groove, and the rolling element extends from the mounting groove to the side of the frame where the second supporting surface is located, and is used for rolling contact with the screen; Alternatively, the frame has a back surface opposite to the second supporting surface, the back surface is provided with a mounting groove, the rolling element is mounted in the mounting groove, and the rolling element extends from the mounting groove to the side of the back surface of the frame and is configured to be in rolling contact with the first supporting element; Alternatively, the skeleton has a back side opposite to the second supporting surface, the skeleton is provided with a mounting groove, the mounting groove passes through the second supporting surface and the back side, the rolling element is mounted in the mounting groove, and the rolling element extends from the mounting groove to the second supporting surface and the back side, and the rolling diameter of the rolling element is smaller than the distance between the screen and the bottom wall of the groove.

3. The screen support assembly according to claim 2, characterized in that: The rolling element includes a roller and a shaft, and the roller is rotatably connected to the skeleton through the shaft.

4. The screen support assembly according to claim 3, characterized in that: The first support member and the second support member are made of metal material, and the roller is made of polyoxymethylene, polyvinylidene fluoride or nylon 65.

5. The screen support assembly according to claim 2, characterized in that: The rolling element includes a cylindrical ball or a spherical ball, a ball retainer is provided in the mounting groove, and the cylindrical ball or the spherical ball is connected to the frame through the ball retainer.

6. The screen support assembly according to claim 1, characterized in that: The screen support assembly includes a sliding fitting, the groove wall of the groove is provided with a limiting groove extending along the first direction, the sliding fitting is connected to the skeleton, the sliding fitting is slidably fitted with the limiting groove, and the sliding fitting is used to limit the skeleton along the second direction so that a gap is maintained between the skeleton and the side wall of the groove.

7. The screen support assembly according to claim 6, characterized in that: The sliding fitting is made of polyoxymethylene, polyvinylidene fluoride or nylon 65.

8. The screen support assembly according to claim 6, characterized in that: The sliding fitting component includes a main body portion and a sliding fitting portion connected to each other. The main body portion is connected to the frame. The sliding fitting portion protrudes from a side surface of the frame and is slidingly fitted with the limiting groove.

9. The screen support assembly according to claim 8, characterized in that: Along the second direction, there is a gap between the sliding fitting portion and the groove wall of the limiting groove, and the gap between the sliding fitting portion and the groove wall of the limiting groove is smaller than the gap between the frame and the groove wall of the groove; And / or, along the third direction, there is a gap between the sliding fitting portion and the groove wall of the limiting groove, and the gap between the sliding fitting portion and the groove wall of the limiting groove is larger than the gap between the rolling element and the groove wall of the groove, wherein the third direction is perpendicular to the first direction and the second direction.

10. The screen support assembly according to claim 6, characterized in that: The sliding fitting is arranged at an end of the frame away from the spinal bar.

11. The screen support assembly according to claim 1, characterized in that: The rolling element is arranged at one end of the frame away from the spinal bar, or a plurality of rolling elements are arranged on each frame.

12. An electronic device, characterized in that: It includes a shell assembly, a flexible screen and a screen support assembly as described in any one of claims 1 to 11, the shell assembly includes a first shell and a second shell, the first shell and the second shell can move relative to each other along a first direction, the flexible screen is connected to the first shell and the second shell, part of the structure of the flexible screen is extended from or retracted into the shell assembly as the first shell and the second shell move relative to each other, and the screen support assembly is used to support the part of the flexible screen extended from the shell assembly.

13. The electronic device according to claim 12, wherein: The first support member is relatively fixed to the first shell, the spine bar is relatively fixed to the second shell, and the flexible screen has a fixed part and a free part. The fixed part is connected to the first support member, and the free part surrounds the side of the second support member close to the spine bar and can move relative to the second support member with the relative movement of the first shell and the second shell.

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