Driving module and electronic equipment

Abstract

The utility model discloses a driving module and electronic equipment, and relates to the technical field of electronic equipment. The driving module comprises a module support, a driving shaft, a tensioning assembly and a stretching rope. The module support is detachably arranged on a fixing support of the electronic equipment. The driving shaft is movably arranged at the first end of the module support so as to rotate relative to the module support. The tensioning assembly is movably arranged at the second end of the module support. The two ends of the stretching rope are fixed to the two ends of the driving shaft correspondingly so that the stretching rope can oppositely and movably wind the driving shaft in the axial direction of the driving shaft, and the middle of the stretching rope is movably connected with the tensioning assembly so as to be matched with the winding amount of the two ends of the stretching rope on the driving shaft. Wherein the designated position of the stretching rope is used for being connected with a telescopic support of the electronic equipment, and the telescopic support of the electronic equipment can drive a display screen of the electronic equipment to stretch out and draw back relative to a fixed support of the electronic equipment so as to change the display area of the display screen of the electronic equipment.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a driving module and an electronic equipment. Background Art

[0002] As people's quality of work and life improves, the requirements for the size of display screens are getting higher and higher. Stretchable flat display devices have come into people's field of vision, such as roll-up screen laptops. The retractable screen of the roll-up screen laptop is achieved by a motor and winding, and the motor drives the wire to move to stretch or retract the screen.

[0003] A tensioning device is required when the motor is driven to wind the wire. However, the tensioning device and the motor are set independently, which has a great impact on assembly and mass production. Utility Model Content

[0004] Embodiments of the present application provide a driving module and an electronic device.

[0005] The present application provides a driving module in a first aspect, which comprises

[0006] A module bracket, wherein the module bracket is detachably mounted on a fixed bracket of the electronic device;

[0007] A driving shaft, the driving shaft being movably disposed at the first end of the module bracket so as to be rotatable relative to the module bracket;

[0008] A tensioning assembly, the tensioning assembly being movably disposed at the second end of the module bracket;

[0009] A stretching rope, the two ends of which are respectively fixed to the two ends of the driving shaft so as to be able to flexibly wrap around the driving shaft in opposite directions in the axial direction of the driving shaft, and the middle part of the stretching rope is flexibly connected to the tensioning assembly to match the wrapping amount of the two ends of the stretching rope on the driving shaft;

[0010] The designated position of the stretch rope is used to connect the telescopic bracket of the electronic device, and the telescopic bracket of the electronic device can drive the display screen of the electronic device to extend and retract relative to the fixed bracket of the electronic device to change the display area of ​​the display screen of the electronic device.

[0011] In some modified implementations of the first aspect of the present application, in the aforementioned drive module, a limiting groove is provided at the end of the drive shaft;

[0012] A limiting knot is provided at the end of the stretch rope, and the limiting knot is matched with the limiting groove.

[0013] In some modified implementations of the first aspect of the present application, in the aforementioned driving module, the limiting groove has a first opening, a second opening and a third opening;

[0014] The first opening and the second opening are arranged opposite to each other along the axial direction of the driving shaft, the third opening is arranged on the outer surface of the driving shaft around the axial direction thereof, and the third opening is communicated with the first opening and the second opening;

[0015] Wherein, a limiting surface is provided between the first opening and the second opening, and the limiting surface extends along the radial direction of the driving shaft and is used for resisting the limiting knot.

[0016] In some modified implementations of the first aspect of the present application, in the aforementioned drive module, a limiting section is provided in the middle of the drive shaft;

[0017] The limiting section protrudes from the driving shaft around the axial direction of the driving shaft to form a first winding area and a second winding area between the limiting section and two ends of the driving shaft.

[0018] In some modified implementations of the first aspect of the present application, in the aforementioned drive module, the tensioning assembly includes a tensioning bracket and a pulley;

[0019] The tensioning bracket is movably connected to the second end of the module bracket;

[0020] The pulley is rotatably arranged on the tensioning bracket, and the axial direction of the pulley is perpendicular to the axial direction of the driving shaft.

[0021] In some modified embodiments of the first aspect of the present application, in the aforementioned drive module, the stretch rope is inclined at a specified angle relative to the drive shaft.

[0022] In some modified implementations of the first aspect of the present application, in the aforementioned drive module, the tensioning assembly further includes an elastic portion;

[0023] The elastic part is arranged along the first direction, and two ends of the elastic part respectively abut against the tensioning bracket and the module bracket;

[0024] The first direction is the direction from the first end of the module bracket to the second end.

[0025] In some modified implementations of the first aspect of the present application, in the aforementioned drive module, the tensioning assembly further includes a guide shaft;

[0026] The guide shaft is detachably connected to the module bracket along the first direction;

[0027] The elastic part and the tensioning bracket are movably sleeved on the guide shaft in sequence along the first direction.

[0028] In some modified implementations of the first aspect of the present application, in the aforementioned driving module, a limiting frame is provided on a side of the first end of the module bracket facing the second end thereof;

[0029] The limiting frame is lower than the axis of the driving shaft, and presses down the stretching rope wound around the upper surface of the driving shaft;

[0030] The driving module also includes a driving motor, which is disposed at the first end of the module bracket, and an output shaft of the driving motor is connected to the driving shaft.

[0031] A second aspect of the present application provides an electronic device, comprising

[0032] Fixed bracket;

[0033] A telescopic bracket, the telescopic bracket is slidably connected to the fixed bracket so as to be telescopic relative to the fixed bracket;

[0034] A display screen, wherein a first end of the display screen is connected to the fixed bracket, and another end of the display screen is connected to the telescopic bracket to cover the fixed bracket and the telescopic bracket;

[0035] The aforementioned drive module;

[0036] The module bracket of the driving module is arranged on the fixed bracket, and the designated position of the stretching rope of the driving module is connected to the telescopic bracket.

[0037] Compared with the prior art, the drive module provided in the present application simultaneously installs the drive shaft and the tensioning assembly through a module bracket to form an integral drive module, thereby achieving integrated installation with the electronic device, which not only simplifies the installation steps, but also has great benefits for the mass production of the drive module and the electronic device; thereby solving the problem in the prior art that the tensioning device and the motor in the retractable electronic device are independently arranged, which has a great impact on both assembly and mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present application will become easy to understand. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0039] Figure 1 The schematic diagram of the structure of the driving module provided in this embodiment is shown schematically;

[0040] Figure 2 The back structure diagram of the driving module provided in this embodiment is schematically shown;

[0041] Figure 3The cross-sectional view of the driving shaft in the driving module provided in this embodiment is schematically shown;

[0042] Figure 4 The schematic diagram schematically shows the state of the drive shaft and the stretch rope in the drive module provided by this embodiment before being assembled;

[0043] Figure 5 The schematic diagram schematically shows the state in which the drive shaft and the stretch rope in the drive module provided by the present embodiment are assembled;

[0044] Figure 6 The structure diagram of the tensioning assembly in the driving module provided in this embodiment is schematically shown;

[0045] Figure 7 The diagram schematically shows the cooperation between the stretch rope and the drive shaft in this embodiment;

[0046] Figure 8 The schematic diagram schematically shows a state where the telescopic bracket in the electronic device provided by the present embodiment is not extended;

[0047] Fig. 9 The schematic diagram schematically shows a state in which the telescopic bracket in the electronic device provided by the present embodiment is extended;

[0048] Description of the accompanying figures: module bracket 1, limit bracket 11, drive shaft 2, limit groove 21, first opening 22, second opening 23, third opening 24, limit surface 25, mounting block 26, limit section 27, first winding area 28, second winding area 29, tensioning assembly 3, tensioning bracket 31, pulley 32, elastic part 33, guide shaft 34, stretching rope 4, limit knot 41, fixed bracket 5, telescopic bracket 6, locking member 61, drive motor 7, first direction a. DETAILED DESCRIPTION

[0049] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0050] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which this application belongs.

[0051] The technical solution of the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0052] Example 1

[0053] Reference Figure 1 , Attachment Figure 2 And attached Figure 8 The driving module provided by the embodiment of the present application includes a module bracket 1, a driving shaft 2, a tensioning assembly 3 and a stretching rope 4, wherein the module bracket 1 is detachably arranged on a fixed bracket 5 of an electronic device; the driving shaft 2 is movably arranged on a first end of the module bracket 1 so as to be able to rotate relative to the module bracket 1; the tensioning assembly 3 is movably arranged on a second end of the module bracket 1; the two ends of the stretching rope 4 are respectively fixed to the two ends of the driving shaft 2 so as to be able to wrap around the driving shaft 2 in opposite and movably directions in the axial direction of the driving shaft 2, and the middle part of the stretching rope 4 is movably connected to the tensioning assembly 3 so as to match the winding amount of the two ends of the stretching rope 4 on the driving shaft 2; wherein the designated position of the stretching rope 4 is used to connect the telescopic bracket 6 of the electronic device, and the telescopic bracket 6 of the electronic device can drive the display screen of the electronic device (not shown in the figure) to extend and retract relative to the fixed bracket of the electronic device to change the display area of ​​the display screen of the electronic device.

[0054] It can be understood that in order to solve the problem that the tensioning device and the motor in the retractable electronic device are independently arranged, which has a great impact on assembly and mass production, the present embodiment provides a driving module, which uses the module bracket 1 as a unified installation carrier of the driving shaft 1 and the tensioning assembly 3 to achieve the overall installation of the two, which not only simplifies the assembly difficulty and reduces the assembly time, but also enables the stretching rope 4 to maintain a high stability when cooperating with the telescopic bracket 6.

[0055] Among them, the driving module is applied to the retractable mechanism, which can be but not limited to an electronic device with a variable display area, such as: a laptop computer with a retractable screen, a tablet computer with a retractable screen, a mobile phone with a retractable screen, etc.; the driving module is installed on the fixed bracket 5, and it can drive the retractable bracket 6 in the electronic device to retract relative to the fixed bracket 5 to change the size of the bearing surface or supporting surface that can be provided when the two cooperate; when the electronic device is a laptop computer with a retractable screen, one end of the display screen is fixedly installed on the retractable bracket 6, and the other end can be movably stored in the fixed bracket 5, and then when the retractable bracket 6 is extended relative to the fixed bracket 5 under the drive of the driving module, the part of the display screen stored in the fixed bracket 5 is pulled out to increase the display area, and the corresponding area is low. When the retractable bracket 6 retracts relative to the fixed bracket 5, the part of the display screen that is pulled out is again stored in the fixed bracket 5. The storage of the display screen in the fixed bracket 5 can be stacked or curled. This setting can be easily understood by those skilled in the art and will not be repeated here.

[0056] The module bracket 1 is a rigid structure, which can be, but not limited to, a plate, a rod, a frame structure, etc., as long as it can provide a stable installation position for the drive shaft 2 and the tensioning assembly 3; for example, the module bracket 1 can be an L-shaped or C-shaped frame, providing installation positions at both ends of the length or width direction of the fixed bracket 5. Of course, in order to ensure the strength and stability of the module bracket 1, the module bracket 1 can also be set as Figure 1 and Figure 2 The rectangular frame shown. The detachable installation form of the module bracket 1 and the fixed bracket 5 can be but not limited to bolt connection, clamping and the like.

[0057] The drive shaft 2 is movably arranged on the module bracket 1, and a mounting frame of the drive shaft 2 may be arranged on the module bracket 1, and the two ends of the drive shaft 2 are rotatably connected to ensure that the drive shaft 2 can rotate freely except for the rotation connection position to wind the stretch rope 4; in this embodiment, the axial direction of the drive shaft 2 can be perpendicular to the telescopic direction of the telescopic bracket 6, so that the stretch rope 4 can move and wind along the telescopic direction of the telescopic bracket 6. Of course, in this embodiment, the driving component of the drive shaft 2 can be synchronously arranged, which can be but not limited to a driving motor, and the driving motor can be installed on the module bracket 1 or on the fixed bracket 5.

[0058] Among them, the tensioning component 3 is arranged at the second end of the module bracket 1, which can provide tensioning force for the stretching rope 4, and can be but not limited to a tensioning wheel; the movable setting of the tensioning component 3 can be movable relative to the module bracket 1 in the telescopic direction of the telescopic bracket 6, so as to absorb the tolerance of the stretching rope 4 and the tensioning component 3 during the installation process and the fluctuation of the stretching rope 4 during the movement process.

[0059] The stretching rope 4 is an inelastic rope body, and the two ends of the stretching rope 4 are respectively fixed to the two ends of the driving shaft 2 and the winding directions of the two ends are opposite, so that when the driving shaft 2 rotates, the stretching rope 4 can be relatively lifted and lowered on both sides of the tensioning component 3; for example: refer to the attached Figure 2 When the driving shaft 2 rotates clockwise, the stretching rope 4 on the left side of the tensioning assembly 3 moves in the direction of the tensioning assembly 3, and the stretching rope 4 on the right side of the tensioning assembly 3 moves in the direction of the driving shaft 2. In this embodiment, the stretching rope 4 can be located at a certain position on the left or right side of the tensioning assembly 3 to be fixedly connected to the telescopic bracket 6, which can be but not limited to bonding, screwing, winding, etc., and then when the stretching rope 4 moves, the telescopic bracket 6 can be pulled up and down relative to the fixed frame or the module bracket 1 to achieve the telescopic bracket 6.

[0060] According to the above, the driving module provided by the present application simultaneously installs the driving shaft 2 and the tensioning assembly 3 through the module bracket 1 to form an integral driving module, thereby realizing an integral installation with the electronic device, which not only simplifies the installation steps, but also has great benefits for the mass production of the driving module and the electronic device; thereby solving the problem in the prior art that when the lens enters a low-temperature environment from a high-temperature environment, water mist is easily generated, which affects its use.

[0061] The term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B, which is specifically understood as: A and B may be included at the same time, A may exist alone, or B may exist alone, and any of the above three situations may exist.

[0062] Further, see Attachment Figure 3 , Attachment Figure 4 And attached Figure 5 In the specific implementation of the driving module provided in this embodiment, a limiting groove 21 is provided at the end of the driving shaft 2; a limiting knot 41 is provided at the end of the stretching rope 4, and the limiting knot 41 is adapted to the limiting groove 21.

[0063] It can be understood that in order to realize and simplify the installation of the drive shaft 2 and the stretching rope 4, a limit groove 21 is set at the end of the drive shaft 2 in this embodiment. The limit groove 21 can be along the axial direction of the drive shaft 2, can be along the radial direction of the drive shaft 2, or can be along a direction that forms a certain angle with the radial direction of the drive shaft 2. The limit groove 21 can provide an accommodating space for the limit knot 41 and can limit the limit knot 41 from escaping from the limit groove 21, mainly to limit the stretching rope 4 from escaping in its winding direction; at the same time, in order to simplify the difficulty and steps of installation, a limit knot 41 is set at the end of the stretching rope 4 in this embodiment. The limit knot 41 can be pre-tied manually or automatically by a robotic arm, and a solid block can be additionally provided, and its size and shape only need to match the size of the limit groove 21; the cooperation between the limit knot 41 and the limit groove 21 does not require bonding or reinforcement, which greatly simplifies the difficulty of installation, reduces installation errors, and saves time for manual winding and tying.

[0064] Further, see Attachment Figure 3 , Attachment Figure 4 And attached Figure 5In the driving module provided in this embodiment, in a specific implementation, the limiting groove 21 has a first opening 22, a second opening 23 and a third opening 24; the first opening 22 and the second opening 23 are arranged opposite to each other along the axial direction of the driving shaft 2, and the third opening 24 is arranged on the outer surface of the driving shaft 2 around its axial direction, and the third opening 24 is connected with the first opening 22 and the second opening 23; wherein a limiting surface 25 is provided between the first opening 22 and the second opening 23, and the limiting surface 25 extends along the radial direction of the driving shaft 2, and is used to resist the limiting knot 41.

[0065] It can be understood that in order to achieve convenient cooperation between the limiting knot 41 and the limiting groove 21, in this embodiment, the limiting groove 21 is formed by setting the first opening 22, the second opening 23 and the third opening 24. The first opening 22, the second opening 23 and the third opening 24 can be set on the driving shaft 2, or a mounting block 26 protruding from the surface thereof can be set around the axial direction of the driving shaft 2. The mounting block 26 can be integrally formed with the driving shaft 2 or can be additionally set on the driving shaft 2, for example: screwing, bonding, etc.; a through hole is set on the mounting block 26 along the axial direction of the driving shaft 2 to form the first opening 22 and the second opening 23, and the outer surface of the mounting block 16 between the first opening 22 and the second opening 23 is removed to form the third opening 24. The formation of the limiting surface 25 can be achieved by reducing the first opening 22 or the second opening 23, for example: refer to the attached Figure 3 The first openings 22 of the two mounting blocks 26 are opposite to each other, and the second openings 23 are opposite to each other, so that the size of the first opening 22 is reduced to be greater than or equal to the diameter of the stretch rope 4 but smaller than the size of the limit knot 41, and the size of the second opening 23 is greater than or equal to the size of the limit knot 41, and then refer to the attached Figure 4 and attached Figure 5 When the limiting knot 41 passes through the second opening 23 and enters the limiting groove 21, the stretching rope 4 is pulled out from the first opening 22 so that the limiting knot 41 abuts against the limiting surface 25, completing the rapid installation of the stretching rope 4 and the driving shaft 2.

[0066] Further, see Attachment Figure 4 And attached Figure 5 In the specific implementation of the drive module provided in this embodiment, a limiting section 27 is provided in the middle of the drive shaft 2; the limiting section 27 protrudes from the drive shaft 2 around the axial direction of the drive shaft 2 to form a first winding area 28 and a second winding area 29 between the limiting section 27 and the two ends of the drive shaft 2.

[0067] It can be understood that in order to ensure the reverse winding of the rope body of the stretch rope 4 on both sides of the tensioning assembly 3, a limiting section 27 is set in the middle of the drive shaft 2 in this embodiment. The limiting section 27 is a rigid structure, which can be integrally formed with the drive shaft 2 or additionally set on the drive shaft 2, for example: screwing, bonding, etc.; the limiting section 27 protrudes from the surface of the drive shaft 2, and cooperates with the aforementioned mounting block 26 or mounting frame, so that the area from the limiting section 27 to the two ends of the drive shaft 2 forms a lower accommodating area, that is, a first winding area 28 and a second winding area 29, to accommodate the two parts of the stretch rope with opposite winding directions. In this embodiment, the radial dimension of the limiting section 27 along the drive shaft 2 can be set to be larger than the diameter of the stretch rope 4 to avoid covering the limiting section 27 during the winding process of the stretch rope 4.

[0068] Further, see Attachment Figure 2 And attached Figure 6 In the driving module provided in this embodiment, in a specific implementation, the tensioning assembly 3 includes a tensioning bracket 31 and a pulley 32; the tensioning bracket 31 is movably connected to the second end of the module bracket 1; the pulley 32 is rotatably arranged on the tensioning bracket 31, and the axial direction of the pulley 32 is perpendicular to the axial direction of the driving shaft 2.

[0069] It can be understood that in order to achieve the tensioning of the stretching rope 4 by the tensioning component 3 to ensure the tautness of the stretching rope 4, the tensioning component 3 in this embodiment is configured to include a tensioning bracket 31 and a pulley 32; the tensioning bracket 31 is a rigid structure, which can be a plate-shaped or frame-type structure, and is movably arranged on the driving module 1 so as to be able to move relative to the module bracket 1 in a direction away from the driving shaft 2, that is, the telescopic direction of the telescopic bracket 6, so as to absorb the installation and movement tolerance of the stretching rope 4; the pulley 32 provides support and rolling friction for the stretching rope 4, and the pulley 32 rotates around the thickness direction of the module bracket 1. The pulley 32 can be but is not limited to a V-shaped wheel to ensure the stable movement of the stretching rope 4 and avoid it from slipping off the pulley 32.

[0070] Further, see Attachment Figure 7 In the driving module provided in this embodiment, in a specific implementation, the stretching rope 4 is inclined at a specified angle relative to the driving shaft 2.

[0071] It can be understood that in order to avoid the phenomenon of stacking of the stretching rope 4 during the winding process, which affects the telescopic degree of the telescopic bracket 6, in this embodiment, the stretching rope 4 is set to be inclined at a specified angle to the axial direction of the driving shaft 2 when cooperating with the driving shaft 2, so as to ensure that the stretching rope 4 can be successively wound on the driving shaft 2 along its inclined direction during the continuous winding process to avoid stacking; this setting can be achieved by setting the pulley 32 to be non-aligned with the middle of the driving shaft 2, that is, Figure 2 As shown, the center of the pulley 32 is offset to the left relative to the middle of the drive shaft 2. The setting of the specified angle in this embodiment can be designed and adjusted according to actual needs, such as Figure 7 As shown, in this embodiment, the angle between the stretch rope 4 and the axial direction of the driving shaft 2 can be set to ∠A. Under this setting, the stretch rope can be wound continuously. ∠A can be calculated by arctan(d / (d+D)); it can be understood that d is the diameter of the stretch rope 4, and D is the diameter of the driving shaft 2; accordingly, Figure 7 ∠B is the limit value of the continuous winding of the stretch rope 4. Once the inclination angle of the stretch rope 4 exceeds ∠B, the stretch rope 4 will overlap on the drive shaft 2. As shown in the figure, ∠B can be calculated by arctan(2d / (d+D)). The angle between the stretch rope 4 and the axial direction of the drive shaft 2 ranges from -∠B to ∠B, where -∠B is the angle between the stretch rope 4 and the axial direction of the drive shaft 2. Figure 7 The corresponding angle on the side opposite to the tilting direction will not be described in detail here.

[0072] Further, see Attachment Figure 2 and attached Figure 6 In the driving module provided in this embodiment, in a specific implementation, the tensioning assembly 3 also includes an elastic portion 33; the elastic portion 33 is arranged along a first direction a, and the two ends of the elastic portion 33 respectively abut against the tensioning bracket 31 and the module bracket 1; wherein the first direction a is the direction from the first end of the module bracket 1 to the second end.

[0073] It is understood that in order to realize the movable setting of the tensioning assembly 3 relative to the module bracket 1, an elastic part 33 is provided in this embodiment, and the elastic part 33 can be but not limited to a spring, a rubber sleeve, a rubber buffer column, etc.; the elastic part 33 extends along the first direction a at one end of the tensioning bracket 31 toward the module bracket 1, and the two ends of the elastic part 33 respectively contact the tensioning bracket 31 and the module bracket 1, so that the tensioning bracket 31 can reciprocate along the first direction a relative to the module bracket 1, laying the foundation for absorbing the installation and movement tolerance of the stretch rope 4. The number and size of the elastic part 33 can be designed and adjusted according to actual needs. In this embodiment, the elastic part 33 can be set to a pre-compressed state, into which it can always push the tensioning bracket 31 away from the drive shaft 2 to ensure the tensioning effect.

[0074] Further, see Attachment Figure 2 and attached Figure 6 In the driving module provided in this embodiment, in a specific implementation, the tensioning assembly 3 also includes a guide shaft 34; the guide shaft 34 is detachably connected to the module bracket 1 along the first direction a; the elastic portion 33 and the tensioning bracket 31 are movably sleeved on the guide shaft 34 in sequence along the first direction a.

[0075] It is understandable that in order to ensure the stability of the tensioning bracket 31 when it moves relative to the module bracket 1, a guide shaft 34 is provided in this embodiment. The guide shaft 34 is a rigid structure, and its number and shape can be designed and adjusted according to actual needs. Figure 6 The two cylindrical guide shafts 34 are arranged at the ends of the tension bracket 31, and the guide shafts 34 can be screwed, plugged, or clamped with the module bracket 1 to achieve convenient disassembly and assembly. The elastic part 33 and the tension bracket 31 are sleeved on the guide shafts 34, and then when the tension bracket 31 is telescopic along the first direction a, the guide shafts 34 can play a guiding role to prevent the elastic part 33 from being offset in direction during compression or stretching, thereby affecting the tensioning effect.

[0076] Further, see Attachment Figure 1 and attached Figure 2 In the driving module provided in this embodiment, in a specific implementation, a limiting frame 11 is provided on the side of the first end of the module bracket 1 toward the second end thereof; the limiting frame 11 is lower than the axis of the driving shaft 2, so as to press down the stretching rope 4 wound around the upper surface of the driving shaft 2; the driving module also includes a driving motor 7, which is arranged at the first end of the module bracket 1, and the output shaft of the driving motor 7 is connected to the driving shaft 2.

[0077] It can be understood that, because the two ends of the stretch rope 4 are respectively fixed to the two ends of the driving shaft 2 and the winding directions of the stretch rope 4 in the first winding area 28 and the second winding area 29 are opposite, then for the driving shaft 2 and the fixed bracket 5, one of the stretch ropes 4 in the first winding area 28 and the second winding area 29 is led out to the tensioning assembly 3 from the side of the driving shaft 2 facing the fixed bracket 5, and the other is led out to the tensioning assembly 3 from the side of the driving shaft 2 facing away from the fixed bracket 5. The upper surface of the driving shaft 2 here is the side facing away from the fixed bracket 5, which is usually the side facing away from the telescopic bracket or the display screen; and then in order to ensure that the stretch rope 4 In order to ensure stability during the movement and avoid affecting other structural parts, a limit frame 11 is provided in the present embodiment. The limit frame 11 is a rigid structure and may be a plate, a rod, a block, etc.; relative to the fixed frame 5, the installation height of the limit frame 11 is lower than the axis of the drive shaft 2, so that the stretching rope 4 led out from the upper surface of the drive shaft 2 can be pressed down, so that the stretching rope 4 led out from the lower surface of the drive shaft 2 is kept on the same side and at a similar or identical height, so that it can be more adaptable when cooperating with the pulley 32, reducing the possibility of disengagement, and avoiding interference with other structural parts located on the upper surface of the drive shaft 2, thereby reducing the thickness of the equipment.

[0078] Example 2

[0079] Reference Figure 8 and attached Fig. 9This embodiment provides an electronic device, which includes a fixed bracket 5, a telescopic bracket 6, a display screen (not shown in the figure) and the driving module; the telescopic bracket 6 is slidably connected to the fixed bracket 5 so as to be able to be telescopic relative to the fixed bracket 5; the first end of the display screen is connected to the fixed bracket 5, and the other end is connected to the telescopic bracket 6 to cover the fixed bracket 5 and the telescopic bracket 6; the module bracket 1 of the driving module is arranged on the fixed bracket 5, and the designated position of the stretching rope 4 of the driving module is connected to the telescopic bracket 6.

[0080] Specifically, the electronic device in this embodiment is an electronic device with a variable display area, such as a laptop computer with a retractable screen, a tablet computer with a retractable screen, a mobile phone with a retractable screen, etc. The fixed bracket 5 is a rigid frame structure that can fix and support part of the display screen; the retractable bracket 6 is a rigid frame structure that is slidably connected to the fixed bracket 5. It can be understood that the mainboard of the electronic device can be set in the fixed bracket 5 or a body can be set to distinguish the fixed bracket 5 and the retractable bracket 6. The design and adjustment can be made according to the specific form of the electronic device. The driving module is the driving module described in Example 1. Please refer to the detailed description of Example 1 for its specific structure and working principle, which will not be repeated here. It should be noted that the connection between the stretching rope 4 and the retractable bracket 6 can be provided with a locking wire 61 on the retractable bracket 6. The locking wire 61 can be but not limited to a columnar, block-shaped, hook-shaped, etc. The stretching rope 4 can be fixed to the locking wire 61 by winding, bonding, tying, etc., so as to achieve fixation with the retractable bracket 6, so that when the stretching rope 4 is wound and loosened relative to the drive shaft 2, the retractable bracket 6 can be retracted and extended relative to the fixed bracket 5. The number of driver modules in an electronic device can be adjusted according to actual needs, for example: Figure 8 and Fig. 9 The two groups shown in .

[0081] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A driving module, characterized in that: At least: A module bracket, wherein the module bracket is detachably mounted on a fixed bracket of the electronic device; A driving shaft, the driving shaft being movably disposed at the first end of the module bracket so as to be rotatable relative to the module bracket; A tensioning assembly, the tensioning assembly being movably disposed at the second end of the module bracket; A stretching rope, the two ends of which are respectively fixed to the two ends of the driving shaft so as to be able to flexibly wrap around the driving shaft in opposite directions in the axial direction of the driving shaft, and the middle part of the stretching rope is flexibly connected to the tensioning assembly to match the wrapping amount of the two ends of the stretching rope on the driving shaft; The designated position of the stretch rope is used to connect the telescopic bracket of the electronic device, and the telescopic bracket of the electronic device can drive the display screen of the electronic device to extend and retract relative to the fixed bracket of the electronic device to change the display area of ​​the display screen of the electronic device.

2. The driving module according to claim 1, characterized in that: The end of the driving shaft is provided with a limiting groove; A limiting knot is provided at the end of the stretch rope, and the limiting knot is matched with the limiting groove.

3. The driving module according to claim 2, characterized in that: The limiting groove has a first opening, a second opening and a third opening; The first opening and the second opening are arranged opposite to each other along the axial direction of the driving shaft, the third opening is arranged on the outer surface of the driving shaft around the axial direction thereof, and the third opening is communicated with the first opening and the second opening; Wherein, a limiting surface is provided between the first opening and the second opening, and the limiting surface extends along the radial direction of the driving shaft and is used for resisting the limiting knot.

4. The driving module according to claim 1, characterized in that: A limiting section is provided in the middle of the driving shaft; The limiting section protrudes from the driving shaft around the axial direction of the driving shaft to form a first winding area and a second winding area between the limiting section and two ends of the driving shaft.

5. The driving module according to claim 1, characterized in that: The tensioning assembly includes a tensioning bracket and a pulley; The tensioning bracket is movably connected to the second end of the module bracket; The pulley is rotatably arranged on the tensioning bracket, and the axial direction of the pulley is perpendicular to the axial direction of the driving shaft.

6. The driving module according to claim 5, characterized in that: The stretch rope is inclined at a specified angle relative to the driving shaft.

7. The driving module according to claim 5, characterized in that: The tensioning assembly further includes an elastic portion; The elastic part is arranged along the first direction, and two ends of the elastic part respectively abut against the tensioning bracket and the module bracket; The first direction is the direction from the first end of the module bracket to the second end.

8. The driving module according to claim 7, characterized in that: The tensioning assembly also includes a guide shaft; The guide shaft is detachably connected to the module bracket along the first direction; The elastic portion and the tensioning bracket are movably sleeved on the guide shaft in sequence along the first direction.

9. The driving module according to claim 1, characterized in that: A limiting frame is provided on one side of the first end of the module bracket toward the second end thereof; The limiting frame is lower than the axis of the driving shaft, and presses down the stretching rope wound around the upper surface of the driving shaft; The driving module also includes a driving motor, which is disposed at the first end of the module bracket, and an output shaft of the driving motor is connected to the driving shaft.

10. An electronic device, characterized in that: It includes: Fixed bracket; A telescopic bracket, the telescopic bracket is slidably connected to the fixed bracket so as to be telescopic relative to the fixed bracket; A display screen, wherein a first end of the display screen is connected to the fixed bracket, and another end of the display screen is connected to the telescopic bracket to cover the fixed bracket and the telescopic bracket; The drive module according to any one of claims 1 to 9; The module bracket of the driving module is arranged on the fixed bracket, and the designated position of the stretching rope of the driving module is connected to the telescopic bracket.

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