A mobile module for sliding and retracting a flexible screen

Abstract

The present invention discloses a mobile module for sliding and extending a flexible screen, comprising: a driving motor and a reducer, a gear transmission component, a motion component and a synchronous output component; the motion component is used to drive the mobile bracket to move linearly, including a support frame and a driving block, a threaded screw and a guide rod are arranged in the support frame, the threaded screw is switched with the support frame through a first ball bearing, the driving block is arranged in the support frame and one side of the threaded screw is threadedly connected to the threaded screw, and the other side of the threaded screw is slidably connected to the guide rod, the synchronous output component is arranged in the support frame and is located on one side of the driving block, it moves synchronously with the driving block and is used to drive the flexible screen to extend and retract, and the driving motor and the reducer are arranged at one end of the support frame. The present invention enables the mobile module to achieve precise driving and synchronous extension and retraction of the flexible screen when applied to electronic products and their mobile brackets and flexible screens, so as to achieve a small footprint, stable and precise motion effect, and improve the product cost performance and market competitiveness.

Description

Technical Field

[0001] The present invention belongs to the technical field of flexible screen equipment for electronic products, and in particular relates to a mobile module for sliding and extending a flexible screen. Background Art

[0002] Nowadays, with the continuous breakthroughs in LED flexible screen technology, it has brought a lot of convenience to the functional development of electronic products using flexible screens. The successful mass production of flexible screens is not only a major benefit to the manufacturing of a new generation of high-end smartphones, but also has a profound impact on the application of wearable devices due to its low power consumption and bendable characteristics. In the existing technology, new functional innovations in consumer electronic products such as smartphones, iPads, autonomous driving head-up display devices or central control panels require them to expand or retract the display screen through their own mobile brackets in different usage scenarios. Therefore, how to design a precise, precise and space-saving mobile module for sliding and retracting flexible screens has become a technical problem that needs to be solved urgently. Summary of the invention

[0003] The object of the present invention is to provide a mobile module for sliding and retracting a flexible screen, so as to solve the problems mentioned in the above background technology.

[0004] In order to achieve the above invention purpose, the technical solution adopted is:

[0005] A mobile module for sliding and retracting a flexible screen is applied to electronic products and their mobile brackets, comprising: a driving motor for providing original driving force and a reducer, a gear transmission assembly, a motion assembly and a synchronous output assembly arranged at the output end of the driving motor; the motion assembly is used to drive the mobile bracket to move linearly, including a support frame and a driving block, the support frame is provided with a threaded screw and a guide rod for the linear motion of the driving block, the threaded screw is transferred to the support frame through a first ball bearing, the driving block is arranged in the support frame and one side of it is threadedly connected to the threaded screw, and the other side of it is slidably connected to the guide rod, the synchronous output assembly is arranged in the support frame and is located on one side of the driving block, it moves synchronously with the driving block and is used to drive the flexible screen to retract and extend, the driving motor and the reducer are arranged at one end of the support frame, and it is meshed and connected with one end of the threaded screw through the gear transmission assembly for torque steering output, and is used to rotate the threaded screw.

[0006] The present invention is further configured as follows: the gear transmission assembly includes conical teeth arranged at the output end of the reducer, transmission teeth arranged at one end of the threaded screw, and combined teeth arranged at one end of the support frame and respectively meshing with the conical teeth and the transmission teeth, a fixed seat is opened at one end of the support frame, the reducer is arranged in the fixed seat, and the drive motor, the reducer and the fixed seat are fixed by laser welding.

[0007] The present invention is further configured as follows: a rotating shaft rod is provided at one end of the support frame and located at the combined tooth, and the combined tooth is connected to the rotating shaft rod.

[0008] The present invention is further configured as follows: the synchronous output component includes symmetrically arranged wheels and an internally toothed transmission belt sleeved on the wheels and driven by the wheels, second ball bearings are symmetrically connected to both ends of the two wheels, and a U-shaped bearing chamber for matching the second ball bearing is correspondingly opened on one side of the support frame, which is used for connecting the synchronous output component with the motion component.

[0009] The present invention is further configured as follows: a synchronous driving arm is integrally connected to a side of the driving block facing the internal tooth transmission belt, an internal tooth groove is provided on one side of the synchronous driving arm, and the internal tooth groove meshes with the internal teeth of the internal tooth transmission belt.

[0010] The present invention is further configured as follows: a plurality of mounting holes for positioning and fixed installation are provided on one side of the support frame.

[0011] The present invention is further configured as follows: a plurality of screw holes for mounting and fixing with the movable bracket are provided on one side of the driving block.

[0012] The present invention is further configured as follows: one end of the conical tooth and the combined tooth are both designed with a 90° orthogonal conical tooth structure, which is used for the vertical meshing connection between the conical tooth and the combined tooth, and the other end of the combined tooth is designed with a spur tooth structure, which is used for the parallel meshing connection between the combined tooth and the transmission tooth.

[0013] The present invention is further configured such that: under the drive of the driving block, the internal tooth transmission belt moves synchronously with the driving block, the internal tooth transmission belt on one side meshing with the synchronous driving arm moves synchronously with the driving block in the same direction, and the internal tooth transmission belt on the other side moves synchronously in the opposite direction with the driving block.

[0014] The present invention is further configured as follows: the threaded screw and the guide rod are arranged in parallel in the support frame, and both ends of the guide rod are fixedly connected to the support frame.

[0015] To sum up, compared with the prior art, the present invention discloses a mobile module for sliding and extending and retracting a flexible screen, including a driving motor, a reducer, a gear transmission assembly, a motion assembly and a synchronous output assembly. The motion assembly includes a support frame and a driving block. A threaded screw and a guide rod are provided in the support frame. The threaded screw is connected to the support frame through a first ball bearing. The driving block is arranged in the support frame and one side of the threaded screw is threadedly connected to the threaded screw, and the other side of the threaded screw is slidably connected to the guide rod. The synchronous output assembly is arranged in the support frame and is located on one side of the driving block, and it moves synchronously with the driving block. The driving motor and the reducer are arranged at one end of the support frame, and are meshed and connected with one end of the threaded screw through the gear transmission assembly. That is, through this arrangement, when the mobile module is applied to electronic products, their mobile brackets and flexible screens, precise driving can be achieved, and the flexible screen can be synchronously extended and retracted, so as to achieve a small footprint, stable and precise motion effects, and improve product cost performance and market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 is a schematic diagram of a three-dimensional structure of a mobile module for sliding and retracting a flexible screen provided in this embodiment;

[0018] Figure 2 is a schematic diagram of the three-dimensional structure of the motion component provided in this embodiment;

[0019] Figure 3 is a schematic diagram of the three-dimensional structure of the synchronous output component provided in this embodiment;

[0020] Figure 4 is an exploded view of the gear transmission assembly provided in this embodiment;

[0021] Figure 5 The three-dimensional structure of the support frame provided in this embodiment is shown in FIG. Figure 1 ;

[0022] Figure 6 The three-dimensional structure of the support frame provided in this embodiment is shown in FIG. Figure 2 ;

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the driving block provided in this embodiment.

[0024] : 1. driving motor; 2. speed reducer; 3. gear transmission assembly; 31. conical teeth; 32. transmission teeth; 33. combination teeth; 4. motion assembly; 41. support frame; 42. driving block; 421. synchronous driving arm; 422. internal tooth groove; 423. screw hole; 43. threaded screw; 431. first ball bearing; 44. guide rod; 45. fixed seat; 46. rotating shaft rod; 47. U-shaped bearing chamber; 48. mounting hole; 5. synchronous output assembly; 51. rotating wheel; 511. second ball bearing; 52. internal tooth transmission belt; 521. internal tooth transmission belt A surface; 522. internal tooth transmission belt B surface. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can also be the internal connection of two components, it can be a wireless connection, or it can be a wired connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, the technical features involved in the different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other.

[0029] A mobile module for sliding and retracting a flexible screen, applied to electronic products and their mobile brackets, such as Figure 1 and Figure 2As shown, it includes: a driving motor 1 for providing original driving force and a reducer 2, a gear transmission assembly 3, a motion assembly 4 and a synchronous output assembly 5 arranged at the output end of the driving motor 1; the motion assembly 4 is used to drive the mobile bracket to move linearly, including a support frame 41 and a driving block 42, and the support frame 41 is provided with a threaded screw 43 and a guide rod 44 for the linear motion of the driving block 42, the threaded screw 43 is connected to the support frame 41 through a first ball bearing 431, the driving block 42 is arranged in the support frame 41 and one side of it is threadedly connected to the threaded screw 43, and the other side of it is slidably connected to the guide rod 44, the synchronous output assembly 5 is arranged in the support frame 41 and is located on one side of the driving block 42, it moves synchronously with the driving block 42 and is used to drive the flexible screen to retract and extend, the driving motor 1 and the reducer 2 are arranged at one end of the support frame 41, and it is meshed and connected with one end of the threaded screw 43 through the gear transmission assembly 3 for torque steering output, and is used to rotate the threaded screw 43.

[0030] During the specific implementation process, the motion component 4 is fixedly connected to the shell or other fixed parts of the electronic product through the support frame 41, and the driving block 42 is connected to the mobile bracket of the electronic product and drives it to move in a straight line to keep the mobile bracket contracted and expanded. At the same time, the synchronous output component 5 that moves synchronously with the driving block 42 keeps the flexible screen and the mobile bracket contracted and expanded synchronously, thereby achieving the design purpose, saving space, and ensuring stable and precise movement.

[0031] like Figure 1 and Figure 4 As shown, the gear transmission assembly 3 includes a conical tooth 31 arranged at the output end of the reducer 2, a transmission tooth 32 arranged at one end of the threaded screw 43, and a combination tooth 33 arranged at one end of the support frame 41 and meshing with the conical tooth 31 and the transmission tooth 32 respectively. A fixing seat 45 is provided at one end of the support frame 41, and the reducer 2 is arranged in the fixing seat 45. The drive motor 1, the reducer 2 and the fixing seat 45 are fixed by laser welding, that is, through the cooperation of the conical tooth 31, the transmission tooth 32 and the combination tooth 33, the output torque of the drive motor 1 is applied to the threaded screw 43 after being reduced in speed and increased in torque by the reducer 2, thereby driving the threaded screw 43 to rotate.

[0032] Among them, please refer to Figure 5 A rotating shaft rod 46 is provided at one end of the support frame 41 and located at the combined tooth 33, and the combined tooth 33 is connected to the rotating shaft rod 46 to stabilize the connection relationship between the gears and improve the structural accuracy.

[0033] like Figure 3As shown, the synchronous output component 5 includes symmetrically arranged wheels 51 and an internally toothed transmission belt 52 mounted on the wheels 51 and driven by the wheels 51. The internally toothed transmission belt 52 is bonded and fixed to the back of the flexible screen. Second ball bearings 511 are symmetrically connected to both ends of the two wheels 51. A U-shaped bearing chamber 47 for matching the second ball bearing 511 is correspondingly opened on one side of the support frame 41, which is used for connecting the synchronous output component 5 with the motion component 4, saving space, and reducing the friction coefficient of the wheel 51 through the second ball bearing 511, thereby reducing the efficiency loss of the transmission force.

[0034] Further, such as Figure 7 As shown, a synchronous driving arm 421 is integrally connected to the side of the driving block 42 facing the internal tooth transmission belt 52. An internal tooth groove 422 is provided on one side of the synchronous driving arm 421. The internal tooth groove 422 engages with the internal teeth of the internal tooth transmission belt 52 to realize synchronous movement of the internal tooth transmission belt 52 and the driving block 42, so as to facilitate the expansion and contraction of the flexible screen.

[0035] A plurality of screw holes 423 for mounting and fixing with the movable bracket are formed on one side of the driving block 42 .

[0036] like Figure 6 As shown, a plurality of mounting holes 48 for positioning and fixing are formed on one side of the support frame 41 .

[0037] In this embodiment, one end of the conical tooth 31 and the combined tooth 33 are both designed with a 90° orthogonal conical tooth structure, which is used for the vertical meshing connection between the conical tooth 31 and the combined tooth 33, and the other end of the combined tooth 33 is designed with a spur tooth structure, which is used for the parallel meshing connection between the combined tooth 33 and the transmission tooth 32.

[0038] It should be noted that, under the drive of the driving block 42, the internal tooth transmission belt 52 moves synchronously with the driving block 42, and the internal tooth transmission belt 52 on one side meshing with the synchronous driving arm 421 moves synchronously with the driving block 42 in the same direction, and the internal tooth transmission belt 52 on the other side moves synchronously with the driving block 42 in the opposite direction, that is, Figure 3, one side of the internal tooth transmission belt 52 acting on the synchronous driving arm 421 is regarded as the B side 522 of the internal tooth transmission belt, and the side of the internal tooth transmission belt 52 away from the synchronous driving arm 421 is the A side 521 of the internal tooth transmission belt. In actual application, the B side 522 of the internal tooth transmission belt moves synchronously with the driving block 42 in the same direction, and the A side 521 of the internal tooth transmission belt moves synchronously with the driving block 42 in the opposite direction. The flexible screen to be extended and retracted is U-shaped and arranged on the electronic product and its mobile bracket. The back side of one end of the flexible screen is bonded and fixed to the A side 521 of the internal tooth transmission belt, and the other end folded over is fixed on the mobile bracket. When the mobile bracket is driven by the driving block 42 to expand, the internal tooth transmission belt 52 pulls the flexible screen out to expand, and vice versa, the flexible screen is retracted, that is, through the synchronous movement of the driving block 42 and the internal tooth transmission belt 52, the synchronous expansion and retraction of the flexible screen and the mobile bracket are guaranteed, so as to achieve a stable and precise action effect, thereby improving the product cost performance and market competitiveness.

[0039] The threaded screw 43 and the guide rod 44 are arranged in parallel in the support frame 41 , and both ends of the guide rod 44 are fixedly connected to the support frame 41 , so that the driving block 42 is driven by the threaded screw 43 to perform linear motion under the guidance of the guide rod 44 .

[0040] In summary, the present invention has the following beneficial effects: the present invention discloses a mobile module for sliding and retracting a flexible screen, comprising a driving motor 1 and a reducer 2, a gear transmission assembly 3, a motion assembly 4 and a synchronous output assembly 5; the motion assembly 4 comprises a support frame 41 and a driving block 42, a threaded screw 43 and a guide rod 44 are arranged in the support frame 41, the driving block 42 is arranged in the support frame 41 and one side of the driving block 42 is threadedly connected to the threaded screw 43, and the other side of the driving block 42 is slidably connected to the guide rod 44, the synchronous output assembly 5 is arranged in the support frame 41 and is located on one side of the driving block 42, which moves synchronously with the driving block 42 and is used to drive the flexible screen to retract, the driving motor 1 and the reducer 2 are arranged at one end of the support frame 41, and are meshed and connected with one end of the threaded screw 43 through the gear transmission assembly 3. That is, through this setting, when the mobile module is applied to electronic products and their mobile brackets and flexible screens, precise driving is achieved, the flexible screen is retracted and extended synchronously, and a small footprint, stable and precise action effect is achieved, and the product cost performance and market competitiveness are improved.

[0041] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A mobile module for sliding and retracting a flexible screen, applied to electronic products and mobile brackets thereof, characterized in that: include: A drive motor (1) for providing an original driving force and a reducer (2), a gear transmission assembly (3), a motion assembly (4) and a synchronous output assembly (5) arranged at the output end of the drive motor (1); the motion assembly (4) is used to drive the movable bracket to move linearly, and comprises a support frame (41) and a drive block (42); a threaded screw (43) and a guide rod (44) for the linear motion of the drive block (42) are arranged in the support frame (41); the threaded screw (43) is connected to the movable bracket through a first ball bearing (431) ) is connected to the support frame (41), the drive block (42) is arranged in the support frame (41) and one side of it is threadedly connected to the threaded screw (43), and the other side of it is slidably connected to the guide rod (44), the synchronous output component (5) is arranged in the support frame (41) and is located on one side of the drive block (42), it moves synchronously with the drive block (42) and is used to drive the flexible screen to retract and extend, the drive motor (1) and the reducer (2) are arranged at one end of the support frame (41), and the synchronous output component (5) is arranged in the support frame (41) and is located on one side of the drive block (42), and it moves synchronously with the drive block (42) and is used to drive the flexible screen to retract and extend. The gear transmission assembly (3) for torque steering output is meshed with one end of the threaded screw (43) to rotate the threaded screw (43); the synchronous output assembly (5) comprises symmetrically arranged rotating wheels (51) and an internal toothed transmission belt (52) sleeved on the rotating wheels (51) and driven by the rotating wheels (51); both ends of the two rotating wheels (51) are symmetrically connected with second ball bearings (511); one side of the support frame (41) is correspondingly provided with a second ball bearing (511) for matching the second ball bearings. The U-shaped bearing chamber (47) of the bearing (511) is used for connecting the synchronous output component (5) with the moving component (4); a synchronous driving arm (421) is integrally connected to the side of the driving block (42) facing the internal tooth transmission belt (52); an internal tooth groove (422) is provided on one side of the synchronous driving arm (421); the internal tooth groove (422) meshes with the internal teeth of the internal tooth transmission belt (52); and a plurality of mounting holes (48) for positioning and fixed installation are provided on one side of the supporting frame (41).

2. A mobile module for sliding and retracting a flexible screen as claimed in claim 1, characterized in that: The gear transmission assembly (3) comprises a conical tooth (31) provided at the output end of the reducer (2), a transmission tooth (32) provided at one end of the threaded screw (43), and a combined tooth (33) provided at one end of the support frame (41) and respectively meshing with the conical tooth (31) and the transmission tooth (32); a fixing seat (45) is provided at one end of the support frame (41); the reducer (2) is provided in the fixing seat (45); and the drive motor (1), the reducer (2) and the fixing seat (45) are fixed by laser welding.

3. A mobile module for sliding and retracting a flexible screen as claimed in claim 2, characterized in that: A rotating shaft rod (46) is provided at one end of the support frame (41) and located at the combined tooth (33), and the combined tooth (33) is connected to the rotating shaft rod (46).

4. The mobile module for sliding and retracting a flexible screen according to claim 1, characterized in that: A plurality of screw holes (423) for mounting and fixing the driving block (42) to the movable bracket are provided on one side of the driving block (42).

5. The mobile module for sliding and retracting a flexible screen as claimed in claim 2, characterized in that: One end of the conical tooth (31) and the combined tooth (33) are both designed with a 90° orthogonal conical tooth structure, which is used for the vertical meshing connection between the conical tooth (31) and the combined tooth (33), and the other end of the combined tooth (33) is designed with a spur tooth structure, which is used for the parallel meshing connection between the combined tooth (33) and the transmission tooth (32).

6. The mobile module for sliding and retracting a flexible screen as claimed in claim 4, characterized in that: Driven by the driving block (42), the internal tooth transmission belt (52) moves synchronously with the driving block (42); the internal tooth transmission belt (52) on one side meshingly connected with the synchronous driving arm (421) moves synchronously with the driving block (42) in the same direction; and the internal tooth transmission belt (52) on the other side moves synchronously with the driving block (42) in the opposite direction.

7. The mobile module for sliding and retracting a flexible screen according to claim 1, characterized in that: The threaded screw rod (43) and the guide rod (44) are arranged in parallel inside the support frame (41), and both ends of the guide rod (44) are fixedly connected to the support frame (41).

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