An electronic device

Abstract

The present application discloses an electronic device, which includes a shell, on which are arranged a driving assembly and a transmission assembly that are interconnected, and a part of the transmission assembly can move along a first direction under the driving action of the driving assembly; it also includes a flexible screen, a screen bracket and a guide rail pair; the screen bracket is connected to a part of the transmission assembly, and the screen bracket can move along the first direction to approach or move away from the shell under the drive of the transmission assembly; one side of the flexible screen is wound on the shell, and the other side of the flexible screen is fixedly connected to the screen bracket; the guide rail pair includes a first slide rail, a second slide rail and a retaining frame, the first slide rail is arranged on the shell, and the second slide rail is arranged on the screen bracket; the retaining frame is clamped between the first slide rail and the second slide rail, and a plurality of balls are arranged on the retaining frame, and the balls roll with the first slide rail and the second slide rail at the same time.

Description

Technical Field

[0001] The present application relates to the technical field of electronic products, and more specifically, to an electronic device. Background Art

[0002] With the development of science and technology, various electronic products have gradually entered thousands of households and become people's daily necessities. Electronic products have brought great convenience to people's lives. Especially in recent years, people's lives have become more and more dependent on smartphones, and the screen size of smartphones directly affects the user experience. When users use smartphones for office and entertainment, they hope that the screen size of the phone is as large as possible, so that they can get a better visual effect; and when users need to carry their phones out, larger phones reduce their portability. Therefore, smartphones equipped with flexible screens and adjustable sizes have become the focus of research for many mobile phone manufacturers in recent years.

[0003] Smartphones with adjustable screen sizes often encounter problems with the flexible screen not running smoothly or moving unsteadily when unfolding and retracting, which not only affects the user experience but may also cause damage to the flexible screen.

[0004] In view of this, it is necessary to provide a new technical solution to solve the above technical problems. Summary of the invention

[0005] One purpose of the present application is to provide a new technical solution for electronic equipment.

[0006] According to a first aspect of the present application, an electronic device is provided, including:

[0007] A housing, wherein a driving assembly and a transmission assembly connected to each other are disposed on the housing, and a part of the transmission assembly can move along a first direction under the driving action of the driving assembly;

[0008] A flexible screen and a screen bracket; the screen bracket is connected to a part of the transmission assembly, and the screen bracket can move along a first direction to approach or move away from the housing under the drive of the transmission assembly;

[0009] One side of the flexible screen is wound on the shell, and the other side of the flexible screen is fixedly connected to the screen bracket;

[0010] A guide rail pair, the guide rail pair comprising a first slide rail, a second slide rail and a retaining frame, the first slide rail is arranged on the housing, and the second slide rail is arranged on the screen bracket;

[0011] The first slide rail and the second slide rail are arranged opposite to each other, the retaining frame is clamped between the first slide rail and the second slide rail, a plurality of balls are arranged on the retaining frame, and the plurality of balls are distributed along a first direction; the balls are rollingly matched with the first slide rail and the second slide rail at the same time;

[0012] The flexible screen has an expanded state and a contracted state. When the screen bracket moves away from the shell, the flexible screen switches from the contracted state to the expanded state; when the screen bracket moves closer to the shell, the flexible screen switches from the expanded state to the contracted state.

[0013] Optionally, a first slide track is provided on the side of the first slide rail facing the retaining frame, and a second slide track is provided on the side of the second slide rail facing the retaining frame; one end of the ball is connected to the first slide track in a rolling fit, and the other end of the ball is connected to the second slide track in a rolling fit.

[0014] Optionally, among the two adjacently arranged balls, one has a first axis and the other has a second axis, and the first axis and the second axis are arranged crosswise.

[0015] Optionally, the first axis and the second axis are arranged to cross each other vertically in the rolling direction of the ball.

[0016] Optionally, a set of guide rail pairs is provided, and the guide rail pairs are located at the middle position of the screen bracket.

[0017] Optionally, two sets of the guide rail pairs are arranged in parallel and opposite to each other, and the two sets of the guide rail pairs are respectively located on both sides of the screen bracket.

[0018] Optionally, the shell is provided with two stoppers in parallel and opposite to each other, and the first slide rail abuts against the stoppers; the screen bracket has a mounting surface, and the mounting surface is provided with two mounting bases in parallel and opposite to each other, and the second slide rail abuts against the mounting base.

[0019] Optionally, the mounting base and the mounting surface are integrally formed;

[0020] One of the two stoppers is integrally formed with the shell, and the other is detachably connected to the shell.

[0021] Optionally, the driving assembly includes a stepper motor and a reducer, the output shaft of the stepper motor is connected to the reducer, and the reducer is connected to the transmission assembly.

[0022] Optionally, the transmission assembly includes a worm, a bevel gear, a spur gear and a rack; the worm is connected to the driving assembly; the bevel gear is meshed with the worm, the spur gear is coaxially connected with the bevel gear, and the rack is meshed with the spur gear; the rack is connected to the screen bracket and can drive the screen bracket to move along the first direction.

[0023] In the electronic device provided in the embodiment of the present application, the guide rail pair including the first slide rail, the second slide rail and the ball bearing can not only help to improve the smoothness of the operation of the screen bracket and ensure a good straight line trajectory, but also can provide good support for the screen bracket and the flexible screen.

[0024] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0026] Figure 1 Shown is a schematic diagram of the exploded structure of an electronic device of the present application;

[0027] Figure 2 Shown is a partial structural schematic diagram of an electronic device of the present application;

[0028] Figure 3 Shown is a schematic diagram of the overall structure of an electronic device of the present application;

[0029] Figure 4 Shown is a schematic diagram of the exploded structure of a guide rail pair in an electronic device of the present application;

[0030] Figure 5 The figure shows a schematic diagram of the cooperation and connection between a screen bracket and a guide rail pair in an electronic device of the present application;

[0031] Figure 6 The figure shows a schematic diagram of the structure of a screen bracket in an electronic device of the present application;

[0032] Figure 7 The figure shows a schematic diagram of the overall structure of a driving component and a transmission component in an electronic device of the present application;

[0033] Figure 8 The figure shows an exploded structural diagram of a driving component and a transmission component in an electronic device of the present application;

[0034] Fig. 9 Shown is a schematic structural diagram of a housing in an electronic device of the present application.

[0035] Description of reference numerals:

[0036] 1. Shell; 101. First surface; 102. Stopper; 2. Drive assembly; 21. Stepper motor; 22. Reducer; 23. Flexible PCB board; 31. Worm; 32. Bevel gear; 33. Spur gear; 34. Rack; 35. Bottom shell; 36. Upper shell; 361. Shaft hole; 37. Gear shaft; 38. First bearing; 39. Second bearing; 4. Flexible screen; 5. Screen bracket; 51. Mounting surface; 511. Mounting base; 6. Guide pair; 61. First slide rail; 611. First slideway; 62. Second slide rail; 63. Retaining frame; 64. Ball. DETAILED DESCRIPTION

[0037] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0038] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0039] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0040] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0041] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0042] refer to Figure 1-Figure 9As shown, according to an embodiment of the present application, an electronic device is provided, which includes a shell 1, a drive component 2 and a transmission component, the shell 1 has a first surface 101; the drive component 2 and the transmission component are arranged on the first surface 101; the transmission component is connected to the drive component 2, and a part of the transmission component can move along a first direction under the driving action of the drive component 2; it also includes a flexible screen 4, a screen bracket 5 and a guide rail pair 6, the screen bracket 5 has a mounting surface 51, the mounting surface 51 is connected to a part of the transmission component, and the screen bracket 5 can move along the first direction driven by the transmission component to approach or move away from the shell 1; one side of the flexible screen 4 is wrapped around the first surface 101, it can be understood that, in The first surface 101 is provided with a reel for winding the flexible screen 4; the other side of the flexible screen 4 is fixedly connected to the screen bracket 5; the guide rail pair 6 includes a first slide rail 61, a second slide rail 62 and a retaining frame 63, the first slide rail 61 is provided on the first surface 101, and the second slide rail 62 is provided on the mounting surface 51; the first slide rail 61 and the second slide rail 62 are arranged opposite to each other, the retaining frame 63 is clamped between the first slide rail 61 and the second slide rail 62, and a plurality of balls 64 are provided on the retaining frame 63, and the plurality of balls 64 are distributed along the first direction; the balls 64 are rollingly matched with the first slide rail 61 and the second slide rail 62 at the same time; the first slide rail 61 and the second slide rail 62 can slide relative to each other through the balls 64 on the retaining frame 63.

[0043] The flexible screen 4 has an expanded state and a contracted state. When the screen bracket 5 moves away from the shell 1, the flexible screen 4 switches from the contracted state to the expanded state; when the screen bracket 5 moves closer to the shell 1, the flexible screen 4 switches from the expanded state to the contracted state.

[0044] In the electronic device provided in the embodiment of the present application, the driving component 2 drives the transmission component to move, and a part of the structure of the transmission component performs translational movement along the first direction under the driving action of the driving component 2, and at the same time, the screen bracket 5 performs translational movement along the first direction under the drive of the transmission component. When the user needs to expand the size of the flexible screen 4, the driving direction of the driving component 2 is controlled to make the screen bracket 5 move away from the shell 1 for translation. At this time, the side of the flexible screen 4 connected to the screen bracket 5 also moves in the direction away from the shell 1, and the flexible screen 4 is unfolded, thereby increasing the size of the flexible screen 4. When the user needs to reduce the size of the flexible screen 4, the driving direction of the driving component 2 is controlled to make the screen bracket 5 move closer to the shell 1 for translation. At this time, the side of the flexible screen 4 connected to the screen bracket 5 also moves in the direction close to the shell 1, and the flexible screen 4 is contracted, thereby reducing the size of the flexible screen 4.

[0045] During the translational movement of the screen bracket 5, the rolling cooperation between the first slide rail 61 and the second slide rail 62 and the ball bearing 64 can provide a good guide for the reciprocating translational movement of the screen bracket 5, ensuring the stability and good straight line trajectory of the operation of the screen bracket 5, and avoiding the screen bracket 5 from running unsteadily or shaking. In addition, when the screen bracket 5 moves away from the housing 1, the bottom of the screen bracket 5 is in a suspended state, and the second slide rail 62 can play a role similar to a cantilever beam to provide a good support for the screen bracket 5, and also provide a good support for the flexible screen 4, preventing the flexible screen 4 from being deformed and damaged due to lack of support.

[0046] In summary, the guide rail pair 6 including the first slide rail 61, the second slide rail 62 and the ball 64 in the electronic device can not only help to improve the smoothness of the operation of the screen bracket 5 and ensure a good straight line trajectory, but also can provide good support for the screen bracket 5 and the flexible screen 4.

[0047] More specifically, the retaining frame 63 is used to install and support the ball 64 , and a plurality of installation positions are provided on the retaining frame 63 , and a ball 64 is installed in each installation position.

[0048] More specifically, the first direction is Fig. 9 direction a shown in .

[0049] refer to Figure 4 As shown, in one embodiment, the first slide rail 61 is provided with a first slideway 611 on the side facing the retaining frame 63, and the second slide rail 62 is provided with a second slideway on the side facing the retaining frame 63; one end of the ball 64 is connected to the first slideway 611 in a rolling fit, and the other end of the ball 64 is connected to the second slideway in a rolling fit.

[0050] In this specific example, the first slide 611 provided on the first slide rail 61 and the second slide (not shown in the figure) provided on the second slide rail 62 are respectively connected to the two ends of the ball 64 in a rolling fit, and the ball 64 rolls in the first slide 611 and the second slide to provide a good guide for the translational movement of the screen bracket 5.

[0051] refer to Figure 4 As shown, in one embodiment, among the two adjacently arranged balls 64, one has a first axis and the other has a second axis, and the first axis and the second axis are arranged crosswise.

[0052] In this specific example, the axes of the two adjacent balls 64 are arranged non-parallel, so that the ends of the two adjacent balls 64 exposed from the retaining frame 63 present different shapes, which can improve the bearing capacity of the balls 64. More specifically, the balls 64 are cylindrical structures.

[0053] refer to Figure 4 As shown, in one embodiment, further, the first axis and the second axis are arranged to be vertically crossed in the rolling direction of the ball 64.

[0054] In this specific example, the axes of two adjacent balls 64 are arranged in a 90° cross-arrangement, so that the multiple balls 64 arranged in this way can withstand loads in various directions and achieve high-precision and smooth linear motion.

[0055] In one embodiment, a set of guide rail pairs 6 is provided, and the guide rail pairs 6 are located at the middle position of the screen bracket 5 .

[0056] In this specific example, a set of guide rails 6 is provided to guide the translational movement of the screen bracket 5, so that the overall structure is relatively simple and the installation is relatively convenient. In this case, the guide rails 6 should be located at the middle position of the screen bracket 5 as much as possible to ensure the smooth operation of the screen bracket 5.

[0057] refer to Figure 5 As shown, in one embodiment, two sets of the guide rail pairs 6 are arranged in parallel and opposite to each other, and the two sets of the guide rail pairs 6 are respectively located on both sides of the screen bracket 5 .

[0058] In this specific example, the translational motion of the screen bracket 5 is guided by two sets of guide rails 6 arranged in parallel and opposite to each other, which can provide a more balanced guiding effect for the reciprocating translational motion of the screen bracket 5 and further improve the stability of the operation of the screen bracket 5. In addition, the two sets of guide rails 6 can provide a better supporting effect for the screen bracket 5 performing linear motion.

[0059] refer to Figure 6 , Fig. 9 As shown, in one embodiment, further, the first surface 101 of the shell 1 is provided with two blocks 102 in parallel and opposite to each other, and the first slide rail 61 abuts against the block 102; the mounting surface 51 of the screen bracket 5 is provided with two mounting bases 511 in parallel and opposite to each other, and the second slide rail 62 abuts against the mounting base 511.

[0060] When two sets of guide rails are set, it is necessary to ensure the parallelism of the installation of the two sets of guide rails to ensure the smoothness of the operation; if the two sets of guide rails are not installed in parallel, they cannot play a good guiding role for the reciprocating translation movement of the screen bracket 5, and even jamming may occur. At the same time, in the same set of guide rails, it should be noted that the gap between the first slide rail 61 and the second slide rail 62 should not be too large or too small. If the gap is too large, the first slide rail 61 and the second slide rail 62 cannot produce a good match with the ball 64; if the gap is too small, the friction force is too large, thereby affecting the smoothness of the movement. Therefore, in this specific example, the stopper 102 can guide the installation position of the first slide rail 61, and the mounting base 511 can guide the installation position of the second slide rail 62 to ensure the parallelism of the two sets of guide rails, and the appropriate gap between the first slide rail 61 and the second slide rail 62 in the same set of guide rails. More specifically, the two second slide rails 62 are respectively abutted at the outer positions of the two mounting bases 511 away from each other.

[0061] In one embodiment, further, the mounting base 511 is integrally formed with the mounting surface 51 ; one of the two stoppers 102 is integrally formed with the first surface 101 of the shell 1 , and the other is detachably connected to the first surface 101 of the shell 1 .

[0062] In this specific example, the two mounting bases 511 are integrally formed on the mounting surface 51. This arrangement is very stable and the processing of the mounting base 511 is relatively easy. More specifically, one of the two stoppers 102 is integrally formed on the first surface 101, and the other stopper 102 is detachably connected to the first surface 101, for example, by bolts, so that the installation distance between the two guide rail pairs 6 can be easily adjusted according to actual conditions.

[0063] refer to Figure 7 , Figure 8 As shown, in one embodiment, the driving assembly 2 includes a stepper motor 21 and a reducer 22, the output shaft of the stepper motor 21 is connected to the reducer 22, and the reducer 22 is connected to the transmission assembly.

[0064] In this specific example, the stepper motor 21 can receive a digital control signal and generate a stable power output, and the reducer 22 can reduce the operating speed of the stepper motor 21 to a more suitable range and transmit the decelerated motion to the transmission component to ensure that the transmission component operates more smoothly and improves the service life of the transmission component, and can also reduce the operating noise to a certain extent. More specifically, the stepper motor 21 is connected to the flexible PCB board 23 to provide an electrical connection for the stepper motor 21.

[0065] refer to Figure 7 , Figure 8As shown, in one embodiment, further, the transmission assembly includes a worm 31, a bevel gear 32, a spur gear 33 and a rack 34; the worm 31 is connected to the driving assembly 2; the bevel gear 32 is meshed with the worm 31, the spur gear 33 is coaxially connected with the bevel gear 32, and the rack 34 is meshed with the spur gear 33; the rack 34 is connected to the screen bracket 5 and can drive the screen bracket 5 to move along the first direction.

[0066] In this specific example, the worm 31 is connected to the driving assembly 2, specifically to the reducer 22. The meshing of the worm 31 and the helical gear 32 can not only play a further deceleration role, but also produce a self-locking effect, that is, to ensure that the transmission assembly will only move in a predetermined direction under the driving action of the driving assembly 2, and will not move under other external forces, and will not move in the opposite direction under the action of external forces, thus improving the reliability of the entire electronic device; even if the stepper motor 21 is powered off, no unnecessary movement will occur, and the stepper motor 21 does not need to be powered all the time, so energy can be saved. Further specifically, the reducer 22, the worm 31, the helical gear 32 and the spur gear 33 are all installed in the gearbox, and the gearbox includes a bottom shell 35 and an upper shell 36. The reducer 22, the worm 31, the helical gear 32 and the spur gear 33 are arranged in the bottom shell 35, and the upper shell 36 is provided with an axial hole 361, one end of the gear shaft 37 is installed in the axial hole 361, and the other end of the gear shaft 37 passes through the spur gear 33 and the helical gear 32 in sequence and is installed in the bottom shell 35. More specifically, the two ends of the central axis of the worm 31 are respectively sleeved with a first bearing 38 and a second bearing 39, and the first bearing 38 and the second bearing 39 are fixedly installed in the bottom shell 35. The worm 31, the bevel gear 32 and the spur gear 33 cooperate to convert the rotational motion of the stepper motor 21 into a linear motion to drive the rack 34 to perform a linear reciprocating motion. According to actual needs, the drive assembly 2 and the transmission assembly can be provided with only one set or multiple sets.

[0067] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. An electronic device, characterized in that: include: A housing (1), wherein the housing (1) is provided with a driving assembly (2) and a transmission assembly which are connected to each other, and a part of the transmission assembly can move along a first direction under the driving action of the driving assembly (2); a flexible screen (4) and a screen bracket (5); the screen bracket (5) is connected to a part of the transmission assembly, and the screen bracket (5) can move along the first direction under the driving action of the transmission assembly to approach or move away from the housing (1); One side of the flexible screen (4) is wound on the housing (1), and the other side of the flexible screen (4) is fixedly connected to the screen bracket (5); A guide rail pair (6), the guide rail pair (6) comprising a first slide rail (61), a second slide rail (62) and a retaining frame (63), the first slide rail (61) being arranged on the housing (1), and the second slide rail (62) being arranged on the screen bracket (5); The first slide rail (61) and the second slide rail (62) are arranged opposite to each other, the retaining frame (63) is sandwiched between the first slide rail (61) and the second slide rail (62), a plurality of balls (64) are arranged on the retaining frame (63), and the plurality of balls (64) are distributed along a first direction; the balls (64) are rollingly matched with the first slide rail (61) and the second slide rail (62) at the same time; The flexible screen (4) has an expanded state and a contracted state. When the screen support (5) moves away from the shell (1), the flexible screen (4) switches from the contracted state to the expanded state; when the screen support (5) moves closer to the shell (1), the flexible screen (4) switches from the expanded state to the contracted state. The guide rail pair (6) is provided with two sets in parallel and opposite to each other; the shell (1) is provided with two blocks (102) in parallel and opposite to each other; the first slide rail (61) abuts against the block (102); the screen bracket (5) has a mounting surface (51); the mounting surface (51) is provided with two mounting bases (511) in parallel and opposite to each other; the second slide rail (62) abuts against the mounting base (511); the mounting base (511) and the mounting surface (51) are integrally formed; one of the two blocks (102) is integrally formed with the shell (1), and the other is detachably connected to the shell (1).

2. The electronic device according to claim 1, characterized in that: The first slide rail (61) is provided with a first slideway (611) on the side facing the retaining frame (63), and the second slide rail (62) is provided with a second slideway on the side facing the retaining frame (63); one end of the ball (64) is connected to the first slideway (611) in a rolling fit, and the other end of the ball (64) is connected to the second slideway in a rolling fit.

3. The electronic device according to claim 1, characterized in that: Among the two adjacently arranged balls (64), one has a first axis and the other has a second axis, and the first axis and the second axis are arranged crosswise.

4. The electronic device according to claim 3, characterized in that: The first axis and the second axis are arranged to be perpendicular and cross each other in the rolling direction of the ball (64).

5. The electronic device according to claim 1, characterized in that: The two sets of guide rail pairs (6) are respectively located on two sides of the screen bracket (5).

6. The electronic device according to claim 1, characterized in that: The driving assembly (2) comprises a stepping motor (21) and a reducer (22); the output shaft of the stepping motor (21) is connected to the reducer (22), and the reducer (22) is connected to the transmission assembly.

7. The electronic device according to claim 1 or 6, characterized in that: The transmission assembly comprises a worm (31), a bevel gear (32), a spur gear (33) and a rack (34); the worm (31) is connected to the driving assembly (2); the bevel gear (32) is meshed with the worm (31), the spur gear (33) is coaxially connected with the bevel gear (32), and the rack (34) is meshed with the spur gear (33); the rack (34) is connected to the screen bracket (5) and can drive the screen bracket (5) to move along a first direction.

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