Rotating shaft structure and terminal device

Abstract

The embodiment of the application discloses a rotating shaft structure and a terminal device, the rotating shaft structure comprises two rotating mechanisms which are symmetrically arranged, any rotating mechanism comprises a rotating support and a screw rod transmission component, the screw rod transmission component comprises a second base, a screw rod and a rotating rod, the rotating rod is slidably connected with a floating plate, the screw rod is nested in the shaft hole of the rotating rod and the second base, and the screw rod is rotationally connected with the second base and the rotating rod; synchronous transmission of the two rotating mechanisms is realized by arranging the screw rod transmission component in the rotating shaft structure, a gear transmission mechanism in the prior art is replaced, the thickness of the second base is reduced, the setting height of the lifting plate of the rotating shaft structure adopting the screw rod transmission component is lower, the distance between the lifting plate and the upper display module is increased, and the falling performance of the terminal device adopting the rotating shaft structure is improved.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a hinge structure and a terminal device. Background Technology

[0002] The flexible display device market is gaining increasing favor. Compared with traditional screens, flexible screens have obvious advantages. As an important component of flexible display devices, the hinge structure plays an important role in protecting the display module and synchronizing folding. Existing hinge structures using gear transmission mechanisms have a gap of less than 0.3 mm between the lifting plate and the display module when closed. When the flexible display device is dropped, the display module is prone to collision with the lifting plate, resulting in damage.

[0003] Therefore, the existing hinge structure has a technical problem: the small gap between the lifting plate and the display module above it results in poor drop performance of the entire machine. Summary of the Invention

[0004] This application provides a hinge structure and a terminal device that can alleviate the technical problem of poor drop performance of the entire device due to the small gap between the lifting plate and the display module above it in the existing hinge structure.

[0005] This application provides a rotating shaft structure, which includes a fixed bracket and two rotating mechanisms rotatably connected to the fixed bracket. The fixed bracket includes a first base and a lifting plate. The two rotating mechanisms are symmetrically arranged about a first center line of symmetry of the fixed bracket. Each of the rotating mechanisms includes:

[0006] A rotating support includes a rotating plate, a floating plate, a rotating block, and a concave wheel block. The rotating block is rotatably connected to the first base, the rotating plate is fixedly connected to the rotating block, the floating plate is rotatably connected to the rotating plate, and the concave wheel block is slidably connected to the rotating block.

[0007] A lead screw drive component includes a second base, a lead screw, and a rotating rod. The rotating rod is slidably connected to the float plate. The rotating rod includes a first shaft hole, and the second base includes a second shaft hole. The lead screw is nested in the first shaft hole and the second shaft hole. The lead screw is rotatably connected to the second base and the rotating rod.

[0008] Optionally, in some embodiments of this application, a display module is further provided on one side of the rotating shaft structure. When the rotating shaft structure is closed, the lifting plate is located on the upper surface of the second base, and the distance between the lifting plate and the display module is greater than 0.3 mm.

[0009] Optionally, in some embodiments of this application, when the rotating shaft structure moves from unfolded to closed, the rotating block is fixedly connected to the rotating plate and rotates together around the fixed support, the floating plate rotates relative to the rotating plate, and the outline formed by the fixed support, the rotating plate, and the floating plate is teardrop-shaped.

[0010] Optionally, in some embodiments of this application, when the rotating shaft structure moves from unfolding to closing, the rotating rod of the lead screw transmission component is slidably connected to the float plate, and the rotation of the float plate drives the rotating rod to rotate, which in turn drives the rotation of the lead screw.

[0011] Optionally, in some embodiments of this application, the rotating shaft structure further includes a synchronizing block, wherein the lead screws of the two rotating mechanisms are rotatably connected to a synchronizing block, and the two rotating mechanisms connected to the synchronizing block have the same rotation angle.

[0012] Optionally, in some embodiments of this application, the synchronizing block includes two third shaft holes, the lead screw is disposed in the third shaft hole, and the outer surface of the lead screw and the inner surface of the third shaft hole are both provided with threads. The rotation of the lead screw of one of the rotating mechanisms drives the synchronizing block to slide, and the sliding of the synchronizing block will drive the lead screw of the other rotating mechanism to rotate synchronously, and the lead screws of the two rotating mechanisms rotate synchronously.

[0013] Optionally, in some embodiments of this application, when the rotating shaft structure moves from unfolding to closing, the lifting plate moves toward the second base; when the rotating shaft structure moves from closing to unfolding, the lifting plate moves away from the second base; when the rotating shaft structure is unfolded, the lifting plate, the rotating plate, and the floating plate are used to support the display module.

[0014] Optionally, in some embodiments of this application, a cam is integrated on the rotating block, and a concave wheel is formed on the concave wheel block at a position relative to the cam, the concave wheel and the cam being fitted together.

[0015] Optionally, in some embodiments of this application, the cross-sectional shape of the cam profile includes any one of a circle, rectangle, square, trapezoid, or triangle.

[0016] This application provides a terminal device including a hinge structure as described in any of the above embodiments. The terminal device further includes a display module, a hinge cover, and a middle frame. The rotating plate is fixed to the middle frame. When the middle frame is closed, the rotating plate rotates with the middle frame. The floating plate is rotatably connected to both ends of the rotating plate. The floating plate is provided with the sliding groove. The floating plate and the rotating rod are slidably connected through the sliding groove.

[0017] Beneficial effects: By setting a screw drive component in the rotating shaft structure to achieve synchronous transmission of the two rotating mechanisms, the gear drive mechanism in the prior art can be replaced. Since the thickness of the second base in the screw drive component is smaller than the thickness of the base in the gear drive mechanism, the lifting plate of the rotating shaft structure with the screw drive component is set at a lower height when the rotating shaft structure is closed, thereby increasing the distance between the lifting plate and the display module above, and improving the drop performance of the terminal device using the rotating shaft structure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an exploded view of the rotating shaft structure provided in this application;

[0020] Figure 2 This is a front perspective view of the rotating shaft structure provided in this application when it is closed;

[0021] Figure 3 This is a rear perspective view of the rotating shaft structure provided in this application when it is closed;

[0022] Figure 4 This is a schematic diagram of the first structure provided in this application when the rotating shaft structure is closed;

[0023] Figure 5 This is a schematic diagram of the second structure provided in this application when the rotating shaft structure is closed;

[0024] Figure 6 This is a schematic diagram of the rotating block and concave wheel block in the rotating shaft structure provided in this application;

[0025] Figure 7 This is a comparative schematic diagram of the shaft structure provided in this application and the existing shaft structure using gears.

[0026] Explanation of reference numerals in the attached figures:

[0027]

[0028] Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0030] Please see Figures 1 to 6 The rotating shaft structure 1 provided in this application includes a fixed bracket and two rotating mechanisms 2 rotatably connected to the fixed bracket. The fixed bracket includes a first base 10 and a lifting plate 20. The two rotating mechanisms 2 are symmetrically arranged about a first symmetry center line 6. Each rotating mechanism 2 includes a rotating bracket and a lead screw 80 transmission component 3. The rotating bracket includes a rotating plate 30, a floating plate 40, a rotating block 50, and a concave wheel 140 block 60. The rotating block 50 is rotatably connected to the first base 10, and the rotating plate 30 is fixed to the rotating block 50. The float plate 40 is rotatably connected to the rotating plate 30, the concave wheel 140 block 60 is slidably connected to the rotating block 50, and the lead screw 80 transmission component 3 includes a second base 70, a lead screw 80, and a rotating rod 90. The rotating rod 90 is slidably connected to the float plate 40, and the rotating rod 90 includes a first shaft hole. The second base 70 includes a second shaft hole, and the lead screw 80 is nested in the first shaft hole and the second shaft hole. The lead screw 80 is rotatably connected to the second base 70 and the rotating rod 90.

[0031] In this embodiment, the synchronous transmission of the two rotating mechanisms 2 is achieved by setting a lead screw 80 transmission component 3 in the rotating shaft structure 1, replacing the gear 150 transmission mechanism in the prior art. Since the thickness of the second base 70 in the lead screw 80 transmission component 3 is smaller than the thickness of the base of the gear 150 transmission mechanism, when the rotating shaft structure 1 is closed, the setting height of the lifting plate 20 of the rotating shaft structure 1 using the lead screw 80 transmission component 3 is lower, thereby increasing the distance d1 between the lifting plate 20 and the upper display module 160, and improving the drop performance of the terminal device using the rotating shaft structure 1.

[0032] The technical solution of this application will now be described in conjunction with specific embodiments.

[0033] This application uses the teardrop-shaped rotating shaft structure 1 as an example for illustration only. It is also applicable to other similar rotating shaft structures 1.

[0034] Furthermore, the sliding or rotating connection method, cross-sectional shape, etc. of this application are only described with reference to the best or preferred embodiment. Other methods that can satisfy the normal operation of the rotating shaft structure 1 should also fall within the protection scope of this invention, and will not be described in detail here.

[0035] In one embodiment, a display module 160 is further provided on the surface of the rotating shaft structure 1. When the rotating shaft structure 1 is closed, the lifting plate 20 is disposed on the upper surface of the second base 70, and the distance d1 between the lifting plate 20 and the display module 160 is greater than 0.3 mm.

[0036] In one embodiment, please refer to Figure 7 The distance d1 between the lifting plate 20 and the display module 160 is greater than 0.5 mm.

[0037] It is understandable that by using the lead screw 80 transmission component 3 of this application to replace the gear 150 transmission mechanism in the prior art, the distance d1 between the lifting plate 20 and the display module 160 can be increased by about 0.22 mm, and the distance d1 between the lifting plate 20 and the display module 160 can be greater than 0.5 mm, which greatly improves the drop performance of the whole machine.

[0038] In one embodiment, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 When the rotating shaft structure 1 is unfolded to closed, the rotating block 50 is fixedly connected to the rotating plate 30 and rotates together around the fixed bracket. The floating plate 40 rotates relative to the rotating plate 30. The outline formed by the fixed bracket, the rotating plate 30 and the floating plate 40 is teardrop-shaped.

[0039] It is understandable that the rotating shaft structure 1 is teardrop-shaped when closed, which reduces the squeezing and pulling forces on the display module 160.

[0040] In one embodiment, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 The rotating bracket also includes a spring 100, which abuts against the concave wheel 140 block 60.

[0041] The rotating bracket further includes a stop block, which includes a first stop block 110 located on the lateral side of the spring 100 and a second stop block 120 located on the longitudinal side. The first stop block 110 and the second stop block 120 are used to limit the spring 100 and prevent the spring 100 from coming out during compression.

[0042] It is understood that the rotation of the rotating block 50 generates a lateral force, which drives the concave wheel 140 block 60 to move laterally to compress the spring 100, thereby generating the bending torque of the rotating shaft structure 1.

[0043] In one embodiment, please refer to Figure 1 , Figure 3 The rotating bracket is also symmetrically arranged about the second symmetry center line 7, which is perpendicular to the first symmetry center line 6.

[0044] It is understood that the rotating bracket is symmetrically arranged about the first symmetry center line 6, so that the left and right sides of the rotating shaft structure 1 are symmetrically arranged, which facilitates synchronous rotation.

[0045] It is understood that by making the rotating bracket symmetrical about the second center line of symmetry 7, the rotation of the two parts of the rotating bracket corresponding to the display modules 160 about the second center line of symmetry 7 is synchronized, wherein the two parts are specifically the first part 4 and the second part 5 shown in the figure.

[0046] In one embodiment, please refer to Figure 5 When the rotating shaft structure 1 is opened to closed, the rotating rod 90 of the lead screw 80 transmission component 3 is slidably connected to the float 40. The rotation of the float 40 drives the rotating rod 90 to rotate, and the rotation of the rotating rod 90 drives the lead screw 80 to rotate.

[0047] Among them, such as Figure 5 As shown, the connection relationship of the lead screw 80 transmission component 3 is enlarged.

[0048] It is understood that the float plate 40 is connected to the lead screw 80 transmission component 3. The rotation of the float plate 40 drives the rotation of the rotating rod 90 and the lead screw 80, thereby realizing the transmission and rotation of the single-sided lead screw 80 transmission component 3.

[0049] In one embodiment, please refer to Figure 1 The rotating shaft structure 1 further includes a synchronizing block 170. The lead screws 80 of the two rotating mechanisms 2 are rotatably connected to the synchronizing block 170, wherein the two rotating mechanisms 2 connected to the synchronizing block 170 have the same rotation angle.

[0050] The synchronization block 170 is arranged symmetrically to itself.

[0051] It is understandable that by setting a synchronizing block 170 between adjacent lead screw 80 transmission components 3, the rotation angles of two adjacent rotating mechanisms 2 are the same and they rotate synchronously.

[0052] In one embodiment, please refer to Figure 1 The synchronizing block 170 includes two third shaft holes, and the lead screw 80 is disposed in the third shaft hole. The outer surface of the lead screw 80 and the inner surface of the third shaft hole are both provided with threads. The rotation of the lead screw 80 of one of the rotating mechanisms 2 drives the synchronizing block 170 to slide. The sliding of the synchronizing block 170 will drive the lead screw 80 of the other rotating mechanism 2 to rotate synchronously. The lead screws 80 of the two rotating mechanisms 2 rotate synchronously.

[0053] It is understood that the rotation of the lead screw 80 of one rotating mechanism 2 is transmitted to the synchronizing block 170 through the thread, causing the synchronizing block 170 to slide. The sliding of the synchronizing block 170 drives the lead screw 80 of another rotating mechanism 2 to rotate synchronously, thereby realizing the synchronous rotation of the two adjacent rotating mechanisms 2.

[0054] In one embodiment, please refer to Figure 4 , Figure 7 When the rotating shaft structure 1 is unfolded to closed, the lifting plate 20 moves toward the second base 70. When the rotating shaft structure 1 is closed to unfolded, the lifting plate 20 moves away from the second base 70. When the rotating shaft structure 1 is unfolded, the lifting plate 20, the rotating plate 30, and the floating plate 40 are used to support the display module 160.

[0055] Please refer to Figure 4 When the rotating shaft structure 1 is closed, the lower surface of the lifting plate 20 abuts against the upper surface of the second base 70.

[0056] It is understandable that the distance d1 between the lifting plate 20 and the display module 160 above it determines the drop performance of the entire device. The larger the distance d1, the better the drop performance of the entire device. When the pivot structure 1 is closed, the lower surface of the lifting plate 20 abuts against the upper surface of the second base 70. Therefore, the distance d1 between the lifting plate 20 and the display module 160 is affected by the thickness of the second base 70 itself. That is, the smaller the thickness of the second base 70, the larger the distance d1 between the lifting plate 20 on its upper surface and the display module 160. The larger the thickness of the second base 70, the smaller the distance d1 between the lifting plate 20 on its upper surface and the display module 160.

[0057] Understandably, please refer to Figure 7Compared to the existing shaft structure 1 that uses gear 150 as the transmission, the second base 70 is equipped with gear 150. Since gear 150 occupies more space than lead screw 80 transmission component 3, this application can reduce the thickness of the second base 70 by replacing gear 150 in the prior art with lead screw 80 transmission component 3, thereby increasing the distance d1 between the lifting plate 20 and the display module 160 above it. Specifically, the distance difference d2 between the bottom surface of the lifting plate 20 using lead screw 80 transmission component 3 and the bottom surface of the lifting plate 20 using gear 150 shaft structure 1 is about 0.22 mm, which is equivalent to reducing the thickness of the second base 70 by about 0.22 mm, thereby increasing the distance d1 between the lifting plate 20 and the display module 160 above it by 0.22 mm.

[0058] In this embodiment, when the pivot structure 1 is closed, by reducing the thickness of the second base 70, the distance d1 between the lifting plate 20 and the display module 160 above it is increased, thereby improving the drop performance of the whole machine.

[0059] In one embodiment, please refer to Figure 6 The rotating block 50 is integrated with a cam 130, and the concave wheel 140 is formed on the concave wheel block 60 at a position relative to the cam 130. The concave wheel 140 and the cam 130 are fitted together.

[0060] It is understandable that by integrating the cam 130 onto the rotating block 50, there is no need to manufacture the cam 130 separately, thereby reducing manufacturing costs.

[0061] It should be noted that the terms cam 130 and concave wheel 140 are merely names and do not represent the shape of their protrusions or concavities. For example, cam 130 could also be described as... Figure 6 The groove in the groove, the concave wheel 140 can also be like Figure 6 The cam 130 can be a protrusion, and the concave wheel 140 can be a groove, as long as the concave wheel 140 and the cam 130 are fitted together to achieve mutual transmission.

[0062] In one embodiment, the cross-sectional shape of the profile of the cam 130 includes any one of a circle, a rectangle, a square, a trapezoid, and a triangle.

[0063] The inventive concept of this application is to replace the gear 150 transmission mechanism in the prior art with a lead screw 80 transmission component 3, so that the thickness of the second base 70 is reduced by about 0.22 mm compared with the thickness of the base of the existing gear 150 transmission mechanism. This results in a lower setting height of the upper surface of the second base 70. When the rotating shaft structure 1 is closed, the lifting plate 20 will abut against the upper surface of the second base 70, making the setting height of the lifting plate 20 even lower. As a result, the distance d1 between the lifting plate 20 and the display module 160 will increase. Therefore, the lead screw 80 transmission component 3 can achieve a distance d1 between the lifting plate 20 and the display module 160 greater than 0.3 mm, thereby improving the drop performance of the whole machine.

[0064] This application also proposes a folding display device and a terminal device. The terminal device further includes a display module, a hinge cover, and a middle frame. The rotating plate is fixed to the middle frame. When the middle frame is closed, the rotating plate rotates with the middle frame. The floating plate and the two ends of the rotating plate are rotatably connected by pins. The floating plate is provided with a sliding groove. The floating plate and the rotating rod are slidably connected by the sliding groove. Both the folding display device and the terminal device include the above-mentioned hinge structure, which will not be described in detail here.

[0065] The rotating shaft structure provided in this embodiment includes a fixed bracket and two rotating mechanisms rotatably connected to the fixed bracket. The fixed bracket includes a first base and a lifting plate. The two rotating mechanisms are symmetrically arranged about a first center line of symmetry. Each rotating mechanism includes a rotating bracket and a screw drive component. The rotating bracket includes a rotating plate, a floating plate, a rotating block, and a concave wheel block. The rotating block is rotatably connected to the first base, the rotating plate is fixedly connected to the rotating block, the floating plate is rotatably connected to the rotating plate, and the concave wheel block is slidably connected to the rotating block. The screw drive component includes a second base, a screw, and a rotating rod. The rotating rod is slidably connected to the floating plate. The rotating rod includes a first shaft hole, the second base includes a second shaft hole, and the screw is nested within the first shaft hole and the second shaft hole. The lead screw is rotatably connected to the second base and to the rotating rod. A display module is also provided on the surface of the rotating shaft structure. When the rotating shaft structure is closed, the lifting plate is positioned on the upper surface of the second base, and the distance between the lifting plate and the display module is greater than 0.3 mm. Synchronous transmission of the two rotating mechanisms is achieved by setting a lead screw transmission component within the rotating shaft structure, replacing the gear transmission mechanism in the prior art. Since the thickness of the second base in the lead screw transmission component is smaller than the thickness of the base in the gear transmission mechanism, the lifting plate of the rotating shaft structure using the lead screw transmission component is positioned lower when the rotating shaft structure is closed, thereby increasing the distance between the lifting plate and the upper display module and improving the drop resistance of the terminal device using the rotating shaft structure.

[0066] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0067] The rotating shaft structure provided in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A rotating shaft structure, characterized in that, The rotating shaft structure includes a fixed bracket and two rotating mechanisms rotatably connected to the fixed bracket. The fixed bracket includes a first base and a lifting plate. The two rotating mechanisms are symmetrically arranged about a first center line of symmetry of the fixed bracket. Each rotating mechanism includes: A rotating support includes a rotating plate, a floating plate, a rotating block, and a concave wheel block. The rotating block is rotatably connected to the first base, the rotating plate is fixedly connected to the rotating block, the floating plate is rotatably connected to the rotating plate, and the concave wheel block is slidably connected to the rotating block. A lead screw drive component includes a second base, a lead screw, and a rotating rod. The rotating rod is slidably connected to the float plate. The rotating rod includes a first shaft hole, and the second base includes a second shaft hole. The lead screw is nested in the first shaft hole and the second shaft hole. The lead screw is rotatably connected to the second base and the rotating rod. When the rotating shaft structure moves from unfolding to closing, the rotation of the float plate drives the rotating rod to rotate, and the rotation of the rotating rod drives the lead screw to rotate.

2. The rotating shaft structure as described in claim 1, characterized in that, A display module is also provided on one side of the rotating shaft structure. When the rotating shaft structure is closed, the lifting plate is located on the upper surface of the second base, and the distance between the lifting plate and the display module is greater than 0.3 mm.

3. The rotating shaft structure as described in claim 2, characterized in that, When the rotating shaft structure is unfolded to closed, the rotating block is fixedly connected to the rotating plate and rotates together around the fixed support. The floating plate rotates relative to the rotating plate. The outline formed by the fixed support, the rotating plate, and the floating plate is teardrop-shaped.

4. The rotating shaft structure as described in claim 1, characterized in that, The rotating shaft structure also includes a synchronizing block, wherein the lead screws of the two rotating mechanisms are rotatably connected to the synchronizing block, and the two rotating mechanisms connected to the synchronizing block rotate at the same angle.

5. The rotating shaft structure as described in claim 4, characterized in that, The synchronizing block includes two third shaft holes, and the lead screw is disposed in the third shaft hole. The outer surface of the lead screw and the inner surface of the third shaft hole are both provided with threads. The rotation of the lead screw of one of the rotating mechanisms drives the synchronizing block to slide. The sliding of the synchronizing block will drive the lead screw of the other rotating mechanism to rotate synchronously. The lead screws of the two rotating mechanisms rotate synchronously.

6. The rotating shaft structure as described in claim 2, characterized in that, When the rotating shaft structure moves from unfolding to closing, the lifting plate moves toward the second base; when the rotating shaft structure moves from closing to unfolding, the lifting plate moves away from the second base. When the rotating shaft structure is unfolded, the lifting plate, the rotating plate, and the floating plate are used to support the display module.

7. The rotating shaft structure as described in claim 2, characterized in that, A cam is integrated on the rotating block, and a concave wheel is formed on the concave wheel block at a position relative to the cam. The concave wheel and the cam are fitted together.

8. The rotating shaft structure as described in claim 7, characterized in that, The cross-sectional shape of the cam profile includes any one of the following: circular, rectangular, square, trapezoidal, and triangular.

9. A terminal device, characterized in that, The terminal device includes the pivot structure as described in any one of claims 1 to 8, and further includes a display module, a pivot cover, and a middle frame. The pivot plate is fixed to the middle frame. When the middle frame is closed, the pivot plate rotates with the middle frame. The floating plate is rotatably connected to both ends of the pivot plate. The floating plate is provided with a sliding groove, and the floating plate and the pivot rod are slidably connected through the sliding groove.

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