Tensioning mechanism and electronic device

Abstract

The application provides a tensioning mechanism and electronic equipment; the tensioning mechanism comprises: a transmission member arranged inside a shell of the electronic equipment, the transmission member being connected with a screen arranged outside the shell to tension the screen, the transmission member moving along with the screen moving along a surface of the shell; a resistance increasing assembly arranged inside the shell and close to a transmission path of the transmission member; the transmission member moving to a first region, the transmission member providing a first tensioning force to the screen; the transmission member moving to a second region, the resistance increasing assembly acting on the transmission member, the transmission member providing a second tensioning force to the screen, the second tensioning force being greater than the first tensioning force.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and in particular to a tensioning mechanism and electronic equipment. Background Technology

[0002] Currently, some electronic devices have screens that can be rolled up and unfolded. These screens require a tensioning mechanism to provide tension and keep them flat. However, the tension provided by this mechanism is generally constant. Utility Model Content

[0003] This application provides a tensioning mechanism and an electronic device.

[0004] A first aspect of this application provides a tensioning mechanism, comprising: a transmission member disposed inside the housing of an electronic device, the transmission member being connected to a screen disposed outside the housing to tension the screen, the transmission member moving along the surface of the housing as the screen moves; and a resistance-increasing component disposed inside the housing, near the transmission path of the transmission member; the transmission member moving to a first region, the transmission member providing a first tensioning force to the screen; the transmission member moving to a second region, the resistance-increasing component acting on the transmission member, the transmission member providing a second tensioning force to the screen, the second tensioning force being greater than the first tensioning force.

[0005] In some embodiments, the transmission member is elastic, and the drag-increasing component increases the elastic deformation of the transmission member to provide a second tension force to the screen; the second tension force is positively correlated with the displacement distance of the transmission member in the second region.

[0006] In some embodiments, the device further includes: a slider disposed inside the housing of the electronic device; the transmission member moves the slider as the screen moves; the transmission member moves to the second region, and the slider abuts against the resistance-increasing component, so that the resistance-increasing component acts on the transmission member to increase the elastic deformation of the transmission member.

[0007] In some embodiments, the resistance-increasing component includes a oscillating member rotatably disposed inside the housing of the electronic device; the transmission member moves to a second region, the sliding member abuts against the oscillating member, and the movable end of the oscillating member approaches the transmission member to cause at least a portion of the transmission member to undergo elastic deformation beyond the transmission path, thereby increasing the elastic deformation of the transmission member.

[0008] In some embodiments, the slider has a guide portion on the side facing the oscillating member, and the protruding length of the guide portion gradually increases in the direction away from the transmission member.

[0009] In some embodiments, the resistance-increasing component includes a rotating rod structure rotatably disposed inside the housing of the electronic device. The movable end of the rotating rod structure is used to fix the transmission member. The transmission member moves to a second region, and the sliding member abuts against the rotating rod structure. The movable end of the rotating rod structure moves in a direction away from the transmission path, increasing the elastic deformation of the transmission member.

[0010] In some embodiments, the rotating rod structure includes a first rotating rod and a second rotating rod rotatably connected inside the housing of an electronic device. The first rotating rod has a first end and a second end opposite to each other, and the second rotating rod has a trigger end and a movable end opposite to each other. When the transmission member moves to a first region, the trigger end of the second rotating rod abuts against the rotation axis of the first rotating rod. When the transmission member moves to a second region, the sliding member abuts against the first end of the first rotating rod, the second end of the first rotating rod abuts against the trigger end of the second rotating rod, and the movable end of the second rotating rod moves in a direction away from the transmission path.

[0011] In some embodiments, the device further includes: a roller, through which the slider abuts against the transmission member; and an abutment member disposed inside the housing of the electronic device, wherein the slider and the abutment member are in frictional engagement to enable the transmission member to provide the first tension force.

[0012] A second aspect of this application provides an electronic device, comprising: a housing, a tensioning mechanism, and a screen movable relative to the housing, wherein the tensioning mechanism is connected to at least one side of the screen, the tensioning mechanism comprising: a transmission member disposed inside the housing of the electronic device, the transmission member being connected to the screen disposed outside the housing to tension the screen, the transmission member moving as the screen moves along the surface of the housing; a resistance-increasing component disposed inside the housing, near the transmission path of the transmission member; the transmission member moving to a first region, the transmission member providing a first tension force to the screen; the transmission member moving to a second region, the resistance-increasing component acting on the transmission member, the transmission member providing a second tension force to the screen, the second tension force being greater than the first tension force.

[0013] In some embodiments, the two tensioning mechanisms are symmetrically arranged on the housing, and the transmission components of the two tensioning mechanisms are respectively connected to opposite sides of the screen; or, the transmission components of the two tensioning mechanisms are connected to the same side of the screen. Attached Figure Description

[0014] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic rear view of an electronic device provided in an embodiment of this application, which includes a first type of resistance-increasing component (the transmission component is located in the first region). Figure 2 This application is Figure 1 A magnified view of part A in the middle; Figure 3 This is a schematic front view of an electronic device provided in an embodiment of this application, which includes a first type of resistance-increasing component (the transmission component is located in the first region). Figure 4 This is a schematic rear view of an electronic device provided in an embodiment of this application, which includes a first type of resistance-increasing component (the transmission component is located in the second region). Figure 5 This is a schematic front view of an electronic device provided in an embodiment of this application, which includes a first type of resistance-increasing component (the transmission component is located in the second region). Figure 6 This is a schematic diagram of the structure of an electronic device equipped with a first type of resistance-increasing component according to another embodiment of this application; Figure 7 This application is Figure 6 A magnified view of part B in the middle section; Figure 8 This is a schematic diagram of the structure of the tensioning mechanism of the second type of resistance-increasing component that does not act on the transmission component, as provided in the embodiments of this application; Figure 9 This application is Figure 8 A magnified view of part C in the middle; Figure 10 This is a schematic diagram of the tensioning mechanism of the second type of resistance-increasing component acting on the transmission component, as provided in the embodiments of this application; Figure 11 This application is Figure 10 A magnified view of part D in the middle.

[0015] Explanation of reference numerals in the attached figures 10. Tensioning mechanism; 11. Transmission component; 111. Connecting end; 11a. First region; 11b. Second region; 12. Resistance increasing component; 12a. Movable end; 121. Swinging component; 122. Rotating rod structure; 1221. First rotating rod; 1221a. First end; 1221b. Second end; 1222. Second rotating rod; 1222a. Trigger end; 13. Sliding component; 131. Guide part; 14. Rotating wheel; 15. Abutment component; 20. Housing; 30. Screen. Detailed Implementation

[0016] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms “comprising” and “having”, and any variations thereof, in the specification and the foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0018] In the description of the embodiments of this application, technical terms such as "first," "second," "third," and "fourth" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0021] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", "radial", "axial", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0022] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "linking," "communication," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0023] The following is a detailed description of this application.

[0024] This application provides an electronic device, such as... Figures 1 to 6 As shown, it includes: a housing 20, a tensioning mechanism 10, and a screen 30 movable relative to the housing 20, wherein the tensioning mechanism 10 is connected to at least one side of the screen 30.

[0025] The electronic device includes a housing 20, a tensioning mechanism 10, and a screen 30. The screen 30 is disposed outside the housing 20 and is movable relative to the surface of the housing 20. A portion of the tensioning mechanism 10 is located inside the housing 20, and another portion of the tensioning mechanism 10 is located outside the housing 20 and connected to the screen 30. The tensioning mechanism 10 is used to provide tension to the screen 30.

[0026] The screen 30 can move along one side surface of the housing 20 or around the periphery of the housing 20. This application does not impose any special limitation on the movement of the screen 30 relative to the housing 20. Mechanisms that can cooperate with each other to tension the screen 30 are provided on both sides of the screen 30. Exemplarily, in one embodiment, one side of the screen 30 is connected to the tensioning mechanism 10, and the other side of the screen 30 is connected to the winding mechanism. In another embodiment, such as... Figure 6 As shown, two tensioning mechanisms 10 are symmetrically arranged on the housing 20, and the transmission components 11 of the two tensioning mechanisms 10 are respectively connected to opposite sides of the screen 30. In another embodiment, the two tensioning mechanisms 10 are symmetrically arranged on the housing 20, and the transmission components 11 of the two tensioning mechanisms 10 are connected to the same side of the screen 30. For this type of electronic device with symmetrically arranged tensioning mechanisms 10, the screen 30 can be unfolded by moving it to either side of the surface opposite to the housing 20. In another embodiment, as... Figures 1 to 5 As shown, a tensioning mechanism 10 transmission component 11 is connected to each side of the screen 30. That is, the transmission component 11 surrounds the periphery of the housing 20 and is connected to both sides of the screen 30 in the direction of movement. The movement of the screen 30 can be controlled by a motor.

[0027] Since the electronic device is connected to at least one side of the screen 30 along its own direction of movement via the tensioning mechanism 10, the tensioning mechanism 10 can provide different tension forces to the screen 30 as the screen 30 moves. Therefore, when the screen 30 is not in use, a smaller first tension force can be provided to the screen 30 by the tensioning mechanism 10, so that the tension on the screen 30 is less, which helps to extend the service life of the screen 30. When the screen 30 is in use, a larger second tension force can be provided to the screen 30 by the tensioning mechanism 10, so that the surface of the screen 30 is unfolded more flat, providing the user with a better visual experience.

[0028] For example, for a screen 30 that moves around the periphery of the housing 20, the use state can be that the screen 30 moves to a state where it is parallel to one side surface of the housing 20, at which time the screen 30 unfolds to the outside; the non-use state can be that the screen 30 is at least partially rolled up around the housing 20, at which time the screen 30 closes itself.

[0029] For example, for a screen 30 that moves along one side surface of the housing 20, the use state can be the state when the screen 30 moves to the middle position of the surface, and the non-use state can be the state when the screen 30 moves to the vicinity of one side of the surface.

[0030] like Figures 1 to 11 As shown, for ease of understanding, Figures 1 to 6 The housing 20 in this application conceals part of its surface while exposing its interior. The tensioning mechanism 10 provided in this application includes: a transmission member 11, disposed inside the housing 20 of the electronic device, the transmission member 11 being connected to a screen 30 disposed outside the housing 20 to tension the screen 30, the transmission member 11 moving along the surface of the housing 20 as the screen 30 moves; a resistance-increasing component 12, disposed inside the housing 20, close to the transmission path of the transmission member 11; the transmission member 11 moves to a first region 11a, the transmission member 11 providing a first tension force to the screen 30; the transmission member 11 moves to a second region 11b, the resistance-increasing component 12 acting on the transmission member 11, the transmission member 11 providing a second tension force to the screen 30, the second tension force being greater than the first tension force.

[0031] The tensioning mechanism 10 includes a transmission member 11 and a resistance-increasing component 12. The transmission member 11 is partially disposed inside the housing 20 of the electronic device, and the resistance-increasing component 12 is also disposed inside the housing 20. A portion of the transmission member 11 is located outside the housing 20 and connected to the screen 30, at least for providing tension to the screen 30; another portion of the transmission member 11 is located inside the housing 20 and cooperates with the resistance-increasing component 12, which can act on the transmission member 11 to increase the tension provided by the transmission member 11 to the screen 30.

[0032] The transmission component 11 is connected to the screen 30 and can move with the screen 30. The screen 30 drives the transmission component 11 to reciprocate between the first region 11a and the second region 11b. The first region 11a and the second region 11b are connected and can be considered as the regions traversed by the connection point between the transmission component 11 and the screen 30. Whether the screen 30 is moving or stationary, the transmission component 11 continuously provides tension to the screen 30.

[0033] like Figures 1 to 5 As shown, the explanation will be based on the connection end 111 between the transmission member 11 and the screen 30. During the process of the screen 30 switching from a used state to a non-used state by moving, the connection end 111 of the transmission member 11 moves from the second region 11b to the first region 11a; during the process of the screen 30 switching from a non-used state to a used state by moving, the connection end 111 of the transmission member 11 moves from the first region 11a to the second region 11b.

[0034] When the connecting end 111 of the transmission member 11 moves to or within the first region 11a, the resistance-increasing component 12 has no effect on the transmission member 11, and the transmission member 11 provides a first tension force to the screen 30. When the connecting end 111 of the transmission member 11 moves to or within the second region 11b, the resistance-increasing component 12 acts on the transmission member 11, and the transmission member 11 provides a second tension force to the screen 30. The second tension force is greater than the first tension force.

[0035] In an optional embodiment, the connecting end 111 of the transmission member 11 moves to or within the first region 11a, the drag-increasing component 12 provides a first force to the transmission member 11, and the transmission member 11 provides a first tension force to the screen 30. The connecting end 111 of the transmission member 11 moves to or within the second region 11b, the drag-increasing component 12 provides a second force to the transmission member 11, and the transmission member 11 provides a second tension force to the screen 30. The second force is greater than the first force, and the second tension force is greater than the first tension force.

[0036] Since the transmission component 11 is connected to the screen 30 and can move with the screen 30, and the connecting end 111 of the transmission component 11 can provide different tension forces when moving to the first region 11a and the second region 11b, the screen 30 can obtain different tension forces when moving to different positions. Thus, when the screen 30 is not fully unfolded and part of it is in use and part of it is in a rolled-up state, the transmission component provides a small first tension force. The uniform and stable first tension force keeps the screen 30 flat and stable during unfolding / folding, while avoiding excessive tension that would affect the smooth unfolding / folding of the screen 30, which helps to improve the service life of the screen 30. When the screen 30 is fully unfolded and in use, the drag-increasing component 12 acts on the transmission component 11 to provide a larger second tension force, making the surface of the screen 30 unfold more flat and presenting a better visual effect to the user. Furthermore, by altering the tension force through the cooperation of the resistance-increasing component 12 and the transmission component 11, the original mechanical structure (transmission component 11) of the screen 30 when unfolding / folding is utilized. Compared with motor control, the structure is simpler, the cost is lower, and the space occupied is smaller, making it suitable for electronic devices of various sizes.

[0037] In some embodiments, continue reading Figures 1 to 11 The transmission component 11 is elastic, and the resistance-increasing component 12 increases the elastic deformation of the transmission component 11, so that the transmission component 11 provides a second tension force to the screen 30; the second tension force is positively correlated with the displacement distance of the connecting end 111 of the transmission component 11 in the second region 11b.

[0038] The first region 11a and the second region 11b are connected. The connecting end 111 of the transmission member 11 moves away from the first region 11a in the second region 11b. The further the connecting end 111 of the transmission member 11 is from the first region 11a, the more fully the screen 30 unfolds and moves towards the optimal usage position in the fully unfolded state. The greater the displacement of the connecting end 111 of the transmission member 11 in the second region 11b, the greater the increase in elastic deformation of the transmission member 11 due to the action of the drag-increasing component 12, and the greater the second tension force on the screen 30. When the connecting end 111 of the transmission member 11 moves to the farthest point of the second region 11b from the first region 11a, the second tension force on the screen 30 is at its maximum, making the surface of the screen 30 unfold to be the flattest, presenting a better visual effect to the user.

[0039] The connecting end 111 of the transmission component 11 moves towards the first region 11a in the second region 11b. The closer the connecting end 111 of the transmission component 11 is to the first region 11a, the closer the screen 30 is to the edge of the housing 20 and tends to be rolled up. The smaller the displacement of the connecting end 111 of the transmission component 11 in the second region 11b, the smaller the elastic deformation of the transmission component 11 due to the action of the resistance-increasing component 12, and the smaller the second tension force, so as to avoid the tension force being too large and affecting the smooth unfolding / folding of the screen 30.

[0040] The transmission component 11 can be any elastic component; for example, the transmission component 11 is an elastic rope, a transmission belt, etc.

[0041] Therefore, the transmission component 11 provides a flexible tension force to the screen 30, avoiding excessive stretching of the screen 30 and causing damage to the screen 30.

[0042] In other embodiments, the transmission member 11 is elastic, and the resistance-increasing component 12 increases the elastic deformation of the transmission member 11, causing the transmission member 11 to provide a second tension force to the screen 30. The resistance-increasing component 12 has a first state and a second state. The connecting end 111 of the transmission member 11 moves to and within the first region 11a. The screen 30 is partially in use and partially in a wound state. The resistance-increasing component 12 is in the first state. In the first state, the resistance-increasing component 12 does not act on the transmission member 11. The transmission member 11 provides a constant first tension force to the screen 30. The uniform and stable first tension force makes the screen... The screen 30 remains flat and stable during unfolding / retraction, while avoiding excessive tension that could affect the smooth unfolding / retraction of the screen 30, thus helping to extend the lifespan of the screen 30. The connecting end 111 of the transmission component 11 moves to the second region 11b and moves within the second region 11b, the screen 30 is fully unfolded and moves in the fully unfolded state, the drag-increasing component 12 is in the second state, the drag-increasing component 12 in the second state increases the elastic deformation of the transmission component 11, the transmission component 11 provides a constant second tension force to the screen 30, so that the surface of the screen 30 is unfolded flat, presenting a better visual effect to the user.

[0043] In some embodiments, such as Figures 1 to 7 As shown, the tensioning mechanism 10 also includes: a sliding member 13, which is disposed inside the housing 20 of the electronic device; the transmission member 11 moves with the screen 30 and drives the sliding member 13 to move; the connecting end 111 of the transmission member 11 moves to the second region 11b, and the sliding member 13 abuts against the resistance increasing component 12, so that the resistance increasing component 12 acts on the transmission member 11 to increase the elastic deformation of the transmission member 11.

[0044] The slider 13 is slidably disposed inside the housing 20 of the electronic device. The slider 13 can be slidably disposed on the inner wall surface of the housing 20. The transmission component 11 can connect to or abut against the slider 13 to drive the slider 13 to move. By abutting against or connecting to the transmission component 11, the slider 13 keeps the transmission component 11 continuously tensioned, thus ensuring that the transmission component 11 provides a primary tension force to the screen 30 whether it is moving with the screen 30 or remaining stationary. A resistance-increasing component 12 is provided along the sliding path of the slider 13. When the connecting end 111 of the transmission component 11 moves to the second region 11b, the slider 13 slides to abut against the resistance-increasing component 12, causing the resistance-increasing component 12 to act on the transmission component 11, increasing the elastic deformation of the transmission component 11.

[0045] In one specific embodiment, the sliding member 13 is located on the transmission path of the transmission member 11. The sliding member 13 abuts against the transmission member 11, causing the transmission path of the transmission member 11 to bend, forming an approximately U-shape. The transmission member 11 moves relative to the sliding member 13 and drives the sliding member 13 to slide. To reduce the friction between the transmission member 11 and the sliding member 13 and alleviate the wear caused by relative friction between them, in some embodiments, such as... Figures 2 to 5 As shown, the tensioning mechanism 10 also includes a rotating wheel 14, and the sliding member 13 abuts against the transmission member 11 through the rotating wheel 14.

[0046] Since the slider 13 can be driven by the transmission component 11, and the slider 13 can abut against the resistance-increasing component 12 during the movement, the resistance-increasing component 12 can react in time and tighten the screen 30 in time when the connecting end 111 of the transmission component 11 moves to the second region 11b. There is no need to set up an additional motor to drive the resistance-increasing component 12 or the slider 13, which can save costs and space.

[0047] In some embodiments, such as Figures 1 to 11 As shown, the tensioning mechanism 10 also includes an abutment 15 disposed inside the housing 20 of the electronic device, and a sliding member 13 frictionally engaging with the abutment 15 so that the transmission member 11 can provide a first tension force.

[0048] Specifically, the abutment 15 has at least two abutment surfaces facing each other, and the slider 13 is disposed between the two abutment surfaces and can slide relative to the abutment surfaces. The abutment surfaces provide friction to the slider 13 by abutting against it. As the transmission member 11 moves with the screen 30, the transmission member 11 drives the slider 13 to slide relative to the abutment surfaces. The slider 13 is subjected to friction, which hinders the movement of the transmission member 11, thereby providing a first tension force to the screen 30 in the opposite direction to the movement of the screen 30 through the transmission member 11. When the screen 30 is stationary, the slider 13 is still held in a fixed position by the friction provided by the abutment 15, thereby tensioning the screen 30 by the action of the transmission member 11 on the screen 30.

[0049] Furthermore, a groove is constructed on the contact surface, and the sliding member 13 is slidably disposed in the groove.

[0050] As a result, the screen 30 can obtain continuous tension, allowing the screen 30 to be moved in a relatively regular state.

[0051] The resistance-increasing component 12 is located close to the transmission path of the transmission member 11. Specifically, the resistance-increasing component 12 can be located on one side of the transmission path of the transmission member 11 when it is not abutted by the sliding member 13, and enter the transmission path of the transmission member 11 when it is abutted by the sliding member 13; alternatively, a portion of the resistance-increasing component 12 can be disposed on the transmission path of the transmission member 11, for example, the portion of the resistance-increasing component 12 located on the transmission path can be connected to the transmission member 11.

[0052] In some embodiments, such as Figures 1 to 7 As shown, the resistance-increasing component 12 includes a swing member 121, which is rotatably disposed inside the housing 20 of the electronic device. The swing member 121 can be rotatably disposed on the inner wall surface of the housing 20. The connecting end 111 of the transmission member 11 moves to the second region 11b, the sliding member 13 abuts against the swing member 121, and the movable end 12a of the swing member 121 approaches the transmission member 11, causing at least a part of the transmission member 11 to undergo elastic deformation beyond the transmission path, so as to increase the elastic deformation of the transmission member 11.

[0053] In a specific embodiment, such as Figure 6 As shown, one end of the transmission member 11 is connected to the inner wall of the housing 20 of the electronic device, and the other end of the transmission member 11 is connected to the screen 30. The sliding member 13 abuts against the transmission member 11, causing the transmission path of the transmission member 11 to bend. The oscillating member 121 is located on the sliding path of the sliding member 13, and the oscillating path of the oscillating member 121 coincides with both the sliding path of the sliding member 13 and the transmission path of the transmission member 11. When the connecting end 111 of the transmission member 11 moves to the first region 11a and moves within the first region 11a, the sliding member 13 and the oscillating member 121 do not contact each other, and the oscillating member 121 has no effect on the transmission member 11; when the connecting end 111 of the transmission member 11 moves to the second region 11b, the sliding member 13 contacts and abuts against the oscillating member 121. As the connecting end 111 of the transmission member 11 moves away from the first region 11a into the second region 11b, the sliding member 13 moves toward the swing member 121, pushing the movable end 12a of the swing member 121 to swing toward the transmission path of the transmission member 11. The movable end 12a of the swing member 121 provides gradually increasing pressure by abutting against the transmission member 11, causing part of the transmission path of the transmission member 11 to bend and undergo elastic deformation beyond the transmission path.

[0054] In another specific embodiment, such as Figures 1 to 6As shown, the two ends of the transmission member 11 are connected to either side or the same side of the screen 30. The sliding member 13 is connected to the transmission member 11 and moves synchronously with it. The oscillating member 121 is located on the sliding path of the sliding member 13, and the oscillation path of the oscillating member 121 coincides with both the sliding path of the sliding member 13 and the transmission path of the transmission member 11. Figures 1 to 3 As shown, the connecting end 111 of the transmission member 11 moves to and within the first region 11a. The sliding member 13 can move towards or away from the swing member 121 (vertical direction in the figure). The sliding member 13 never contacts the swing member 121, and the swing member 121 has no effect on the transmission member 11. Figures 4 to 7 As shown, the connecting end 111 of the transmission member 11 moves to the second region 11b, and the sliding member 13 contacts and abuts against the swing member 121. During the movement of the connecting end 111 of the transmission member 11 in the second region 11b away from the first region 11a, the sliding member 13 moves towards the swing member 121. Figure 4 , 5 Upward direction; Figure 6 , 7 The moving part 121 moves downwards, pushing the movable end 12a of the swing member 121 to swing closer to the transmission path of the transmission member 11. The movable end 12a of the swing member 121 provides gradually increasing pressure by abutting against the transmission member 11, causing part of the transmission path of the transmission member 11 to bend and undergo elastic deformation beyond the transmission path.

[0055] Thus, by the sliding member 13 abutting against the swing member 121, the swing member 121 acts on the transmission member 11, thereby increasing the elastic deformation of the transmission member 11. The structure is simple, occupies little space, and can be applied to electronic devices of various sizes.

[0056] In order for the slider 13 to smoothly abut against the swing member 121, such as Figure 2 Hezhi Figure 7 As shown, in some embodiments, the slider 13 has a guide portion 131 on the side facing the swing member 121, and the protruding length of the guide portion 131 gradually increases in the direction away from the transmission member 11.

[0057] The guide portion 131 protrudes towards the swing member 121 relative to the slider 13. The guide portion 131 slides with the slider 13. The sliding path of the guide portion 131 coincides with the swing path of the swing member 121. The protruding length of the guide portion 131 gradually increases in the direction away from the transmission member 11 to form a slope. The slider 13 abuts against the movable end 12a of the swing member 121 through the slope of the guide portion 131.

[0058] Therefore, even if the movable end 12a of the swing member 121 deviates to a certain extent, the guide part 131 can guide it toward the direction of the transmission member 11, which helps to improve the stability and reliability of the drag-increasing assembly 12.

[0059] In other embodiments, the protruding length of the guide portion 131 may remain unchanged in the direction away from the transmission member 11.

[0060] To prevent the swinging member 121 from swinging arbitrarily beyond the effective contact area of ​​the sliding member 13, in some embodiments, the resistance-increasing assembly 12 further includes a swing limiting member (not shown in the figure). The transmission member 11 and the swing limiting member are spaced apart from each other and are both located on the swing path of the swinging member 121, with the swinging member 121 located between the transmission member 11 and the swing limiting member. The effective contact area of ​​the sliding member 13 with the swinging member 121 is the area where the movement path of the sliding member 13 for contacting the swinging member 121 coincides with the swing path of the swinging member 121.

[0061] In some embodiments, such as Figures 8 to 11 As shown, the resistance-increasing component 12 includes a rotating rod structure 122, which is rotatably disposed inside the housing 20 of the electronic device. The rotating rod structure 122 can be rotatably disposed on the inner wall surface of the housing 20. The movable end 12a of the rotating rod structure 122 is used to fix the transmission component 11. The connecting end 111 of the transmission component 11 moves to the second region 11b. The sliding component 13 abuts against the rotating rod structure 122. The movable end 12a of the rotating rod structure 122 moves along a direction away from the transmission path (upward direction in the figure) to increase the elastic deformation of the transmission component 11.

[0062] Therefore, by the sliding member 13 abutting against the rotating rod structure 122, the rotating rod structure 122 acts on the transmission member 11, thereby increasing the elastic deformation of the transmission member 11. The structure is simple, occupies little space, and can be applied to electronic devices of various sizes.

[0063] Specifically, such as Figure 9 and Figure 11As shown, the rotating rod structure 122 includes a first rotating rod 1221 and a second rotating rod 1222 respectively rotatably connected inside the housing 20 of the electronic device. The first rotating rod 1221 has a first end 1221a and a second end 1221b opposite to each other. The second rotating rod 1222 has a trigger end 1222a and a movable end 12a opposite to each other. The first end 1221a of the first rotating rod 1221 and the movable end 12a of the second rotating rod 1222 are facing each other. The second end 1221b of the first rotating rod 1221 and the trigger end 1222a of the second rotating rod 1222 are facing each other. The connecting end 111 of the transmission member 11 moves to the first region 11a, and the trigger end 1222a of the second rotating rod 1222 abuts against the rotating shaft of the first rotating rod 1221; the connecting end 111 of the transmission member 11 moves to the second region 11b, and the sliding member 13 abuts against the first end 1221a of the first rotating rod 1221, and the second end 1221b of the first rotating rod 1221 abuts against the trigger end 1222a of the second rotating rod 1222; the movable end 12a of the second rotating rod 1222 moves in a direction away from the transmission path to stretch the transmission member 11.

[0064] The first rotating rod 1221 and the second rotating rod 1222 are rotatably mounted on the inner wall surface of the housing 20. The first end 1221a of the first rotating rod 1221 is located on the sliding path of the slider 13, and the movable end 12a of the second rotating rod 1222 avoids the sliding path of the slider 13. To facilitate alignment of the slider 13 with the first end 1221a of the first rotating rod 1221, see [continuing to the previous section]. Figures 8 to 11 A guide portion 131 can be constructed on the side of the slider 13 facing the first rotating rod 1221. The guide portion 131 protrudes relative to the slider 13 in a direction closer to the first rotating rod 1221, and the slider 13 abuts against the first end 1221a of the first rotating rod 1221 through the guide portion 131.

[0065] like Figure 9 and Figure 11 As shown, the second end 1221b of the first rotating rod 1221 has a protrusion toward the second rotating rod 1222, and the first end 1221a of the first rotating rod 1221 is located on the sliding path of the slider 13. When the slider 13 has a guide portion 131, the first end 1221a of the first rotating rod 1221 is located on the sliding path of the guide portion 131.

[0066] like Figure 8 and Figure 9As shown, when the connecting end 111 of the transmission member 11 moves to the first region 11a and moves within the first region 11a, since the trigger end 1222a of the second rotating rod 1222 abuts against the rotation axis of the first rotating rod 1221, the movable end 12a of the second rotating rod 1222 will not be pulled by the transmission member 11. In other words, the transmission member 11 provides a pulling force to the movable end 12a of the second rotating rod 1222 in the direction closer to the transmission path (downward direction in the figure), so that the trigger end 1222a of the second rotating rod 1222 has a tendency to move in the direction closer to the first rotating rod 1221 (upward direction in the figure). However, the trigger end 1222a of the second rotating rod 1222 is blocked by the rotation axis of the first rotating rod 1221 and cannot move, so that the second rotating rod 1222 remains stationary, thereby keeping the length of the transmission member 11 constant to provide a constant first tension force.

[0067] like Figure 10 and Figure 11 As shown, when the connecting end 111 of the transmission member 11 moves to and within the second region 11b, the sliding member 13 abuts against the first end 1221a of the first rotating rod 1221, causing the first rotating rod 1221 to rotate until its second end 1221b abuts against the trigger end 1222a of the second rotating rod 1222. This causes the trigger end 1222a of the second rotating rod 1222 to move away from the first rotating rod 1221 (downward direction in the figure). The second rotating rod 1222 rotates, causing its movable end 12a to move away from the transmission path (upward direction in the figure). The transmission member 11 connects to the movable end 12a of the second rotating rod 1222. Therefore, both ends of the transmission member 11 are stretched by the screen 30 and the movable end 12a of the second rotating rod 1222, respectively, to provide a greater second tension. The structure is simple and reliable in use.

[0068] In an optional embodiment, the rotating rod structure 122 includes a third rotating rod (not shown) rotatably connected inside the housing 20 of the electronic device and a limiting member. The third rotating rod has a stable end and a movable end 12a opposite to each other. The limiting member is located on the side of the stable end of the third rotating rod away from the transmission member 11. The movable end 12a of the third rotating rod is connected to the transmission member 11. The connecting end 111 of the transmission member 11 moves to a first region 11a, and the stable end of the third rotating rod abuts against the limiting member. The connecting end 111 of the transmission member 11 moves to a second region 11b, and the sliding member 13 abuts against the movable end 12a of the third rotating rod. The movable end 12a of the third rotating rod moves along the direction of the transmission path to stretch the transmission member 11.

[0069] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, and improvements made within the spirit and scope of this application are included within the scope of protection of this application.

Claims

1. A tensioning mechanism, characterized in that, include: A transmission component is disposed inside the housing of the electronic device. The transmission component is connected to a screen disposed outside the housing to tension the screen. The transmission component moves along the surface of the housing as the screen moves. The resistance-increasing component is disposed inside the housing, close to the transmission path of the transmission component; The transmission component moves to the first region, and the transmission component provides a first tension force to the screen; The transmission component moves to the second region, the resistance-increasing component acts on the transmission component, and the transmission component provides a second tension force to the screen, the second tension force being greater than the first tension force.

2. The tensioning mechanism according to claim 1, characterized in that, The transmission component is elastic, and the resistance-increasing component increases the elastic deformation of the transmission component, so that the transmission component provides a second tension force to the screen. The second tension is positively correlated with the displacement distance of the transmission component in the second region.

3. The tensioning mechanism according to claim 2, characterized in that, Also includes: A sliding component is disposed inside the housing of the electronic device, and the transmission component moves the sliding component as the screen moves; When the transmission component moves to the second region, the sliding component abuts against the resistance-increasing component, causing the resistance-increasing component to act on the transmission component and increase the elastic deformation of the transmission component.

4. The tensioning mechanism according to claim 3, characterized in that, The drag-increasing component includes a swinging element, which is rotatably disposed inside the housing of the electronic device; The transmission component moves to the second region, the sliding component abuts against the swing component, and the movable end of the swing component approaches the transmission component, causing at least a portion of the transmission component to undergo elastic deformation beyond the transmission path, thereby increasing the elastic deformation of the transmission component.

5. The tensioning mechanism according to claim 4, characterized in that, The slider has a guide portion on the side facing the swing member, and the protruding length of the guide portion gradually increases in the direction away from the transmission member.

6. The tensioning mechanism according to claim 3, characterized in that, The resistance-increasing component includes a rotating rod structure, which is rotatably disposed inside the housing of the electronic device. The movable end of the rotating rod structure is used to fix the transmission component. The transmission component moves to the second region, the sliding component abuts against the rotating rod structure, and the movable end of the rotating rod structure moves away from the transmission path, increasing the elastic deformation of the transmission component.

7. The tensioning mechanism according to claim 6, characterized in that, The rotating rod structure includes a first rotating rod and a second rotating rod rotatably connected inside the housing of the electronic device. The first rotating rod has a first end and a second end opposite to each other, and the second rotating rod has a trigger end and a movable end opposite to each other. When the transmission member moves to a first region, the trigger end of the second rotating rod abuts against the rotation axis of the first rotating rod. When the transmission member moves to a second region, the sliding member abuts against the first end of the first rotating rod, the second end of the first rotating rod abuts against the trigger end of the second rotating rod, and the movable end of the second rotating rod moves in a direction away from the transmission path.

8. The tensioning mechanism according to any one of claims 3 to 7, characterized in that, Also includes: A rotating wheel, wherein the sliding member abuts against the transmission member via the rotating wheel; An abutment is disposed inside the housing of the electronic device, and the sliding member engages with the abutment to enable the transmission member to provide the first tension force.

9. An electronic device, characterized in that, include: A housing, a tensioning mechanism, and a screen movable relative to the housing, wherein the tensioning mechanism is connected to at least one side of the screen, and the tensioning mechanism includes: A transmission component is disposed inside the housing of the electronic device. The transmission component is connected to the screen disposed outside the housing to tension the screen. The transmission component moves along the surface of the housing as the screen moves. The resistance-increasing component is disposed inside the housing, close to the transmission path of the transmission component; The transmission component moves to the first region, and the transmission component provides a first tension force to the screen; The transmission component moves to the second region, the resistance-increasing component acts on the transmission component, and the transmission component provides a second tension force to the screen, the second tension force being greater than the first tension force.

10. The electronic device according to claim 9, characterized in that, The two tensioning mechanisms are symmetrically arranged on the housing. The transmission components of the two tensioning mechanisms are respectively connected to opposite sides of the screen; or, The transmission components of the two tensioning mechanisms are connected to the same side of the screen.

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