A hinge and an electronic device

Abstract

The present application provides a hinge and an electronic device. The solution includes a first door panel assembly, a second door panel assembly, a base assembly, a first cross beam, and a second cross beam. The first cross beam includes a first cantilever, a second cantilever, and a first guiding structure. The first cantilever and the second cantilever are disposed on the second surface of the first cross beam. The first cross beam is rotationally connected to the first door panel assembly and the base assembly through the first guiding structure. When the hinge is in the folded state, the first cantilever and the second cantilever support the first door panel assembly and the base assembly. When the hinge is subjected to a dropping impact force, the first cantilever and the second cantilever abut against the first door panel assembly and the base assembly, and the tendency of the first door panel assembly and the base assembly to move closer to each other in the mutual approaching direction is blocked by the first cross beam, reducing the extrusion generated between the first door panel assembly and the base assembly due to dropping. This is equivalent to improving the strength of the first door panel assembly and the base assembly to resist the dropping impact force, enhancing the anti-dropping performance of the hinge, and extending the service life of the hinge.

Description

[0001] This application is a divisional application of the application with the application number 202211674428.5, the application date of December 26, 2022, and the invention title of "A Hinge and an Electronic Device". Technical Field

[0002] This application relates to the technical field of electronic devices, and particularly relates to a hinge and an electronic device. Background Art

[0003] A folding screen mobile phone includes a first body, a second body, and a hinge. Among them, the first body and the second body are respectively connected to the hinge and can be unfolded or folded under the action of the hinge. The folding screen mobile phone is developing towards being thinner and lighter, and the corresponding hinge is also developing towards being miniaturized. How to extend the service life of the hinge within a limited size is a technical problem to be faced currently. Summary of the Invention

[0004] In view of this, this application provides a hinge and an electronic device to extend the service life of the hinge.

[0005] To achieve the above object, this application provides the following technical solutions:

[0006] In the first aspect of this application, a hinge is provided, which includes a first door panel assembly, a second door panel assembly, a base assembly, a first cross beam, and a second cross beam. Among them, the base assembly is located between the first door panel assembly and the second door panel assembly and is rotatably connected to the first door panel assembly and the second door panel assembly; the first cross beam is distributed between the first door panel assembly and the base assembly and is rotatably connected to the first door panel assembly and the base assembly to fill the gap between the first door panel assembly and the base assembly; the second cross beam is distributed between the second door panel assembly and the base assembly and is rotatably connected to the second door panel assembly and the base assembly to fill the gap between the second door panel assembly and the base assembly; the first cross beam includes a first surface and a second surface opposite to the first surface, and the first cross beam further includes a first cantilever and a second cantilever. Among them, the first cantilever extends from the second surface of the first cross beam towards the first door panel assembly, and the second cantilever extends from the second surface of the first cross beam towards the base assembly; when the hinge is in the folded state, the first cantilever abuts against the first door panel assembly, and the second cantilever abuts against the base assembly to support the first door panel assembly and the base assembly.

[0007] When the hinge is subjected to a dropping impact force, the first cantilever and the second cantilever abut against the first door panel assembly and the base assembly. The tendency of the first door panel assembly and the base assembly to move closer to each other in the direction is blocked by the first cross beam, reducing the extrusion between the first door panel assembly and the base assembly due to dropping. This is equivalent to increasing the strength of the first door panel assembly and the base assembly to resist the dropping impact force, that is, improving the anti-dropping performance of the hinge. Similarly, when the hinge is subjected to a bending impact force, under the action of the first cantilever and the second cantilever, the extrusion between the first door panel assembly and the base assembly due to bending is reduced, which is equivalent to increasing the strength of the first door panel assembly and the base assembly to resist the bending impact force, that is, improving the anti-bending performance of the hinge. In addition, the cross-sectional area of the position where the first cross beam is provided with the first cantilever and the second cantilever increases, increasing the stiffness of the first cross beam. The increase in the local stiffness of the hinge will also increase the overall stiffness of the hinge. It can be seen that in the example of the present application, only by adding the first cantilever and the second cantilever to the first cross beam can the service life of the hinge be extended on the basis of a limited size.

[0008] In some possible embodiments of the present application, the first door panel assembly includes a first abutting portion that cooperates with the first cantilever. By providing the first abutting portion, the positioning accuracy of the first cantilever can be improved.

[0009] In some possible embodiments of the present application, the first abutting portion is provided with a first positioning groove. Along the length direction of the first cross beam, the groove wall of the first positioning groove can limit the movement of the first cantilever; the groove bottom of the first positioning groove cooperates with the first abutting surface of the first cantilever. Providing the first positioning groove in the first abutting portion can further position the first cantilever and limit the movement in the length direction of the first cross beam.

[0010] In some possible embodiments of the present application, the groove bottom of the first positioning groove is a plane. Processing the groove bottom of the first positioning groove into a plane is convenient for processing and reduces the processing difficulty of the first positioning groove.

[0011] In some possible embodiments of the present application, the base assembly includes a second abutting portion that cooperates with the second cantilever. By providing the second abutting portion, the positioning accuracy of the second cantilever can be improved.

[0012] In some possible embodiments of the present application, the second abutting portion is provided with a second positioning groove. Along the length direction of the first cross beam, the groove wall of the second positioning groove can limit the movement of the second cantilever; the groove bottom of the second positioning groove cooperates with the second abutting surface of the second cantilever. Providing the second positioning groove in the second abutting portion can further position the second cantilever and limit the movement in the length direction of the first cross beam.

[0013] In some possible embodiments of the present application, the groove bottom of the second positioning groove is a plane. Processing the groove bottom of the second positioning groove into a plane is convenient for processing and reduces the processing difficulty of the second positioning groove.

[0014] In some possible embodiments of the present application, the first abutting portion and / or the second abutting portion is a convex structure or a groove structure.

[0015] In some possible embodiments of the present application, along the width direction of the first cross beam, the first cantilever and the second cantilever are symmetrically arranged on both sides of the first cross beam. The symmetric arrangement can improve the versatility of the first cross beam.

[0016] In some possible embodiments of the present application, the first cantilever and the second cantilever extend along a straight line or a curve. When the first cantilever and the second cantilever extend along a straight line, a V-shaped structure can be formed, which can reduce the processing difficulty of the first cross beam.

[0017] In some possible embodiments of the present application, a first variable stiffness structure is provided on the side of the first cantilever close to the second cantilever. When the first cantilever bends, the stiffness of the first cantilever increases as the deformation degree of the first variable stiffness structure increases, and when the first variable stiffness structure is completely deformed, the stiffness of the first cantilever reaches the strongest, thus forming a certain impact adaptability and gradually increasing the stiffness.

[0018] In some possible embodiments of the present application, the first variable stiffness structure includes a plurality of first deformation protrusions and a plurality of first deformation grooves, wherein the first deformation protrusions and the first deformation grooves are arranged alternately.

[0019] In some possible embodiments of the present application, among the plurality of first deformation grooves, the groove width of the first deformation groove gradually becomes wider in the direction close to the second surface of the first cross beam; the groove height of the first deformation groove gradually becomes higher in the direction close to the second surface of the first cross beam.

[0020] In some possible embodiments of the present application, a second variable stiffness structure is provided on the side of the second cantilever close to the first cantilever. When the second cantilever bends, the stiffness of the second cantilever increases as the deformation degree of the second variable stiffness structure increases, and when the second variable stiffness structure is completely deformed, the stiffness of the second cantilever reaches the strongest, thus forming a certain impact adaptability and gradually increasing the stiffness.

[0021] In some possible embodiments of the present application, the second variable stiffness structure includes a plurality of second deformation protrusions and a plurality of second deformation grooves, wherein the second deformation protrusions and the second deformation grooves are arranged alternately.

[0022] In some possible embodiments of the present application, among the plurality of second deformation grooves, the groove width of the second deformation groove gradually becomes wider in the direction close to the second surface of the second cross beam; the groove height of the second deformation groove gradually becomes higher in the direction close to the second surface of the second cross beam.

[0023] In some possible embodiments of the present application, one first cantilever and one second cantilever form a group, and multiple groups of first cantilevers and second cantilevers are provided on the first cross beam.

[0024] In some possible embodiments of the present application, the first cross beam includes a first guiding structure disposed on the second surface of the first cross beam. The first cross beam is rotatably connected to the first door panel assembly and the base assembly through the first guiding structure, and a set of first cantilever and second cantilever are arranged close to the first guiding structure. The adjacent arrangement of the first cantilever, the second cantilever and the first guiding structure can improve the stability of the hinge state switching.

[0025] In some possible embodiments of the present application, the first guiding structure includes a first guiding member and a second guiding member. Among them, the first guiding member is slidably engaged with the first guiding groove of the door panel assembly, and the second guiding member is slidably engaged with the first guiding block of the base assembly.

[0026] In some possible embodiments of the present application, the first guiding member and the second guiding member are arc-shaped plate members.

[0027] In some possible embodiments of the present application, the second cross beam further includes a third cantilever and a fourth cantilever. The third cantilever extends from the second surface of the second cross beam towards the base assembly, and the second cantilever extends from the second surface of the second cross beam towards the second door panel assembly; when the hinge is in the folded state, the third cantilever abuts against the base assembly, and the fourth cantilever abuts against the first door panel assembly to support the first door panel assembly and the base assembly.

[0028] In some possible embodiments of the present application, the structure of the second cross beam is the same as that of the first cross beam. The same structure of the first cross beam and the second cross beam can improve their versatility, and the two can be used interchangeably.

[0029] In some possible embodiments of the present application, one fourth cantilever and one third cantilever are a set, and multiple sets of fourth cantilevers and third cantilevers are arranged on the second cross beam.

[0030] In some possible embodiments of the present application, the second cross beam includes a second guiding structure disposed on the second surface of the second cross beam. The second cross beam is rotatably connected to the second door panel assembly and the base assembly through the second guiding structure, and a set of third cantilever and fourth cantilever are arranged close to the second guiding structure.

[0031] In some possible embodiments of the present application, the second guiding structure includes a third guiding member and a fourth guiding member. Among them, the third guiding member is slidably engaged with the second guiding block of the base assembly, and the fourth guiding member is slidably engaged with the second guiding groove of the second door panel assembly.

[0032] In a second aspect, the present application discloses an electronic device, including a first body, a second body and a hinge. Among them, the first body and the second body are respectively connected to the hinge and are unfolded or folded under the action of the hinge, and the hinge is the hinge as described in any one of the above. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0034] Figure 1 Schematic diagram of a folding screen mobile phone provided by the prior art;

[0035] Figure 2 Schematic diagram of a folding screen mobile phone provided by the prior art;

[0036] Figure 3 Three-dimensional view of a hinge provided by the prior art;

[0037] Figure 4 Exploded view of a hinge provided by the prior art;

[0038] Figure 5 Three-dimensional view of the hinge in the embodiment of the present application;

[0039] Figure 6 Top view of the hinge in the unfolded state in the embodiment of the present application;

[0040] Figure 7 For Figure 6 Schematic diagram of the A-A cross-section in

[0041] Figure 8 For Figure 7 Enlarged view of part B in

[0042] Figure 9 Top view of the hinge in the folded state in the embodiment of the present application;

[0043] Figure 10 For Figure 9 Schematic diagram of the C-C cross-section in

[0044] Figure 11 For Figure 10 Enlarged view of part D in

[0045] Figure 12 Three-dimensional view of the first crossbeam in the embodiment of the present application;

[0046] Figure 13 Top view of the first crossbeam in the embodiment of the present application;

[0047] Figure 14 For Figure 13 One kind of schematic diagram of the E-E cross-section in

[0048] Figure 15 For Figure 14Schematic diagram of the forces on the first cantilever and the second cantilever in the first crossbeam;

[0049] Figure 16 is Figure 13 Another schematic diagram of the E-E cross-section in;

[0050] Figure 17 Top view of the first crossbeam in another embodiment of the present application;

[0051] Figure 18 Exploded view of the hinge in the embodiment of the present application;

[0052] Figure 19 Exploded view of the hinge in the deployed state in the embodiment of the present application;

[0053] Figure 20 Exploded view of the first door panel assembly and the first crossbeam in the embodiment of the present application;

[0054] Figure 21 Schematic diagram of the base assembly, the first crossbeam and the second crossbeam in the embodiment of the present application;

[0055] Figure 22 Exploded view of the base assembly and the first crossbeam in the embodiment of the present application;

[0056] Wherein, 01 is the first body, 02 is the second body, 03 is the hinge; 031 is the first door panel assembly, 032 is the second door panel assembly, 033 is the base assembly, 034 is the first crossbeam, 035 is the second crossbeam;

[0057] 31 is the first door panel assembly, 32 is the second door panel assembly, 33 is the base assembly, 34 is the first crossbeam, 35 is the second crossbeam, 34a is the first surface, 34b is the second surface;

[0058] 311 is the first abutting portion, 312 is the first door panel, 313 is the first mounting member, 314 is the first mounting seat, 311a is the first positioning groove, 313a is the first guiding groove, 313b is the first fastening hole, 314a is the first mounting groove, 314b is the second mounting groove, 314c is the second fastening hole;

[0059] 321 is the third abutting portion, 322 is the second door panel, 323 is the second mounting member, 324 is the second mounting seat;

[0060] 331 is the second abutting portion, 332 is the base, 333 is the mounting plate, 334 is the fourth abutting portion, 331a is the second positioning groove, 332a is the first guiding block, 332b is the second guiding block, 333a is the mounting hole;

[0061] 341 is the first cantilever, 342 is the second cantilever, 343 is the first guiding structure, 341a is the first abutting surface, 341b is the first deformation protrusion, 341c is the first deformation groove, 342a is the second abutting surface, 342b is the second deformation protrusion, 342c is the second deformation groove, 343a is the first guiding member, 343b is the second guiding member;

[0062] 351 is the third cantilever, 352 is the fourth cantilever, 353 is the second guiding structure, 353a is the third guiding member, 353b is the fourth guiding member. Detailed implementation manners

[0063] The terms "first", "second", "third", etc. in the description, claims and drawings of this application are used to distinguish different objects, rather than to limit a specific order.

[0064] In the embodiments of this application, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0065] See Figure 1 , Figure 1 In (a) shows a folding screen mobile phone in the unfolded state; Figure 1 In (b) shows a folding screen mobile phone in the folded state; Figure 1 In (c) shows a schematic diagram of a folding screen mobile phone in the folded state when subjected to a dropping impact force.

[0066] It should be noted that the drawings involved in this article are all schematic diagrams of the structure of an outward-foldable folding screen mobile phone. For an inward-foldable folding screen mobile phone, the connection method in this article can be referred to. As a type of electronic device, the folding screen mobile phone of this application can also be other mobile terminal devices such as a tablet computer (portable android device, PAD), desktop type, laptop, notebook computer, ultra-mobile personal computer (UMPC), handheld computer, netbook, personal digital assistant (PDA), wearable electronic device and smart watch, etc. The form of this electronic device is not specifically limited in the embodiments of this application.

[0067] The illustrated foldable screen mobile phone includes a first body 01, a second body 02, and a hinge 03. Among them, the first body 01 and the second body 02 are respectively connected to the hinge 03 and can be unfolded or folded under the action of the hinge 03. When the hinge 03 is in the unfolded state, the angle between the first body 01 and the second body 02 is approximately 180°, or the angle between the first body 01 and the second body 02 is 180°. When the foldable screen mobile phone is in the unfolded state, as shown in Figure 1 Figure (a); when the hinge 03 is in the folded state, the angle between the first body 01 and the second body 02 is approximately 0°, or the angle between the first body 01 and the second body 02 is 0°. When the foldable screen mobile phone is in the folded state, as shown in Figure 1 Figure (b). When the foldable screen mobile phone in the folded state drops to a scene such as the ground, the first body 01, the second body 02, and the hinge 03 are affected by the dropping impact force. The first body 01 and the second body 02 have a tendency to move towards each other. When the impact force is large enough, the first body 01 and the second body 02 move towards each other, and it is easy to form deformation extrusion between the first body 01, the second body 02, and the hinge 03, which affects the performance of the foldable screen mobile phone. Similarly, when the foldable screen mobile phone in the folded state is affected by a bending impact force, it is also easy to form deformation extrusion between the first body 01, the second body 02, and the hinge 03, which affects the performance of the foldable screen mobile phone.

[0068] See Figures 2 to 4 , Figure 2 Figure (a) shows a schematic diagram of the hinge 03 in the unfolded foldable screen mobile phone; Figure 2 Figure (b) shows a schematic diagram of the hinge 03 in the folded foldable screen mobile phone when affected by a dropping impact force; Figure 3 is a three-dimensional schematic diagram of the hinge 03; Figure 4 is an exploded schematic diagram of the hinge 03.

[0069] The illustrated hinge 03 includes a first door panel assembly 031, a second door panel assembly 032, a base assembly 033, a first cross beam 034, and a second cross beam 035. Among them, the first door panel assembly 031 is used to connect to the first body 01; the second door panel assembly 032 is used to connect to the second body 02; the base assembly 033 is located between the first door panel assembly 031 and the second door panel assembly 032 and is rotatably connected to the first door panel assembly 031 and the second door panel assembly 032 to realize the expansion or folding of the first door panel assembly 031 and the second door panel assembly 032; the first cross beam 034 is distributed between the first door panel assembly 031 and the base assembly 033 and is rotatably connected to the first door panel assembly 031 and the base assembly 033 to fill the gap between the first door panel assembly 031 and the base assembly 033 to form a support surface; the second cross beam 035 is distributed between the second door panel assembly 032 and the base assembly 033 and is rotatably connected to the second door panel assembly 032 and the base assembly 033 to fill the gap between the second door panel assembly 032 and the base assembly 033 to form a support surface. When the hinge 03 is in the unfolded state, the angle between the first door panel assembly 031 and the second door panel assembly 032 is approximately 180°, or the angle between the first door panel assembly 031 and the second door panel assembly 032 is 180°, as shown in Figure 2 in (a); when the hinge 03 is in the folded state, the angle between the first door panel assembly 031 and the second door panel assembly 032 is approximately 0°, or the angle between the first door panel assembly 031 and the second door panel assembly 032 is 0°, as shown in Figure 2 in (b).

[0070] When the folded-screen mobile phone in the folded state drops to a scene such as the ground, the first body 01, the second body 02, and the hinge 03 are affected by the dropping impact force. The first door panel assembly 031 and the base assembly 033 tend to move closer to each other. When the impact force is large enough, the first door panel assembly 031 and the base assembly 033 move closer to each other. Similarly, the second door panel assembly 032 and the base assembly 033 tend to move closer to each other. When the impact force is large enough, the second door panel assembly 032 and the base assembly 033 move closer to each other. In other words, when the dropping impact force is large enough, deformation extrusion is likely to occur between the first door panel assembly 031, the second door panel assembly 032, and the base assembly 033, thereby affecting the service life of the hinge 03. Since the folded-screen mobile phone is developing towards being thinner and lighter, the corresponding hinge 03 is also developing towards miniaturization. How to extend the service life of the hinge 03 within a limited size is a technical problem to be faced currently.

[0071] In the embodiments of the present application, by reducing the deformation extrusion between the first door panel assembly 031, the second door panel assembly 032, and the base assembly 033, the service life of the hinge 03 is extended to improve the performance of the folded-screen mobile phone.

[0072] See Figures 5 to 10 , the illustrated hinge includes a first door panel assembly 31, a second door panel assembly 32, a base assembly 33, a first cross beam 34 and a second cross beam 35. Among them, the first door panel assembly 31 is used to connect with the first body; the second door panel assembly 32 is used to connect with the second body; the base assembly 33 is located between the first door panel assembly 31 and the second door panel assembly 32, and is rotatably connected to the first door panel assembly 31 and the second door panel assembly 32 to realize the unfolding or folding of the first door panel assembly 31 and the base assembly 33, and the unfolding or folding of the second door panel assembly 32 and the base assembly 33; the first cross beam 34 is distributed between the first door panel assembly 31 and the base assembly 33, and is rotatably connected to the first door panel assembly 31 and the base assembly 33 to fill the gap between the first door panel assembly 31 and the base assembly 33 to form a first support surface; the second cross beam 35 is distributed between the second door panel assembly 32 and the base assembly 33, and is rotatably connected to the second door panel assembly 32 and the base assembly 33 to fill the gap between the second door panel assembly 32 and the base assembly 33 to form a second support surface.

[0073] The first cross beam 34 has a first surface 34a and a second surface 34b opposite to the first surface 34a, where the first surface 34a forms a support surface. The first cross beam 34 further includes a first cantilever 341 and a second cantilever 342. Among them, the first cantilever 341 extends from the second surface 34b of the first cross beam 34 towards the first door panel assembly 31, and the second cantilever 342 extends from the second surface 34b of the first cross beam 34 towards the base assembly 33. When the first door panel assembly 31 and the base assembly 33 are in the folded state, the first cantilever 341 abuts against the first door panel assembly 31, and the second cantilever 342 abuts against the base assembly 33 to support the first door panel assembly 31 and the base assembly 33.

[0074] The first door panel assembly 31 has a first abutting portion 311 that cooperates with the first cantilever 341, and the base assembly 33 has a second abutting portion 331 that cooperates with the second cantilever 342. The first abutting portion 311 and / or the second abutting portion 331 can be a convex structure or a groove structure. By providing the first abutting portion 311 or the second abutting portion 331, the preliminary positioning of the first cantilever 341 and the second cantilever 342 can be realized, and the positioning accuracy of the first cantilever 341 and the second cantilever 342 can be improved.

[0075] When the hinge is subjected to a dropping impact force, the first cantilever 341 and the second cantilever 342 abut against the first door panel assembly 31 and the base assembly 33. The tendency of the first door panel assembly 31 and the base assembly 33 to move closer to each other is blocked by the first cross beam 34, reducing the extrusion between the first door panel assembly 31 and the base assembly 33 caused by dropping. This is equivalent to increasing the strength of the first door panel assembly 31 and the base assembly 33 to resist the dropping impact force, that is, improving the anti-dropping performance of the hinge. Similarly, when the hinge is subjected to a bending impact force, under the action of the first cantilever 341 and the second cantilever 342, the extrusion between the first door panel assembly 31 and the base assembly 33 caused by bending is reduced. This is equivalent to increasing the strength of the first door panel assembly 31 and the base assembly 33 to resist the bending impact force, that is, improving the anti-bending performance of the hinge. In addition, the cross-sectional area of the position where the first cross beam 34 is provided with the first cantilever 341 and the second cantilever 342 increases, increasing the stiffness of the first cross beam 34. The increase in the local stiffness of the hinge will also increase the overall stiffness of the hinge. It can be seen that in the example of the present application, only by adding the first cantilever 341 and the second cantilever 342 to the first cross beam 34 can the service life of the hinge be extended on the basis of a limited size.

[0076] Similarly, the second cross beam 35 has a first surface and a second surface opposite to the first surface, wherein the first surface forms a support surface. The second cross beam 35 further includes a third cantilever 351 and a fourth cantilever 352. The third cantilever 351 extends from the second surface of the second cross beam 35 towards the base assembly 33, and the fourth cantilever 352 extends from the second surface of the second cross beam 35 towards the second door panel assembly 32. When the second door panel assembly 32 and the base assembly 33 are in the folded state, the third cantilever 351 abuts against the base assembly 33, and the fourth cantilever 352 abuts against the second door panel assembly 32 to support the second door panel assembly 32 and the base assembly 33.

[0077] The second door panel assembly 32 has a third abutting portion 321 that cooperates with the fourth cantilever 352, and the base assembly 33 has a fourth abutting portion 334 that cooperates with the third cantilever 351. The third abutting portion 321 and / or the fourth abutting portion 334 can be a convex structure or a groove structure. By providing the third abutting portion 321 or the fourth abutting portion 334, the preliminary positioning of the third cantilever 351 and the fourth cantilever 352 can be realized, and the positioning accuracy of the third cantilever 351 and the fourth cantilever 352 can be improved.

[0078] When the hinge is subjected to a drop impact force, the third cantilever 351 and the fourth cantilever 352 abut against the base assembly 33 and the second door panel assembly 32. The tendency of the second door panel assembly 32 and the base assembly 33 to move closer to each other is blocked by the second cross beam 35, reducing the extrusion between the second door panel assembly 32 and the base assembly 33 due to the drop. This is equivalent to increasing the strength of the second door panel assembly 32 and the base assembly 33 to resist the drop impact force, that is, improving the drop resistance performance of the hinge. Similarly, when the hinge is subjected to a bending impact force, under the action of the third cantilever 351 and the fourth cantilever 352, the extrusion between the second door panel assembly 32 and the base assembly 33 due to bending is reduced, which is equivalent to increasing the strength of the second door panel assembly 32 and the base assembly 33 to resist the bending impact force, that is, improving the bending resistance performance of the hinge. In addition, the cross-sectional area of the second cross beam 35 at the positions where the third cantilever 351 and the fourth cantilever 352 are provided increases, increasing the stiffness of the second cross beam 35. The increase in the local stiffness of the hinge will also increase the overall stiffness of the hinge. It can be seen that in the examples of the present application, only by adding the third cantilever 351 and the fourth cantilever 352 to the second cross beam 35 can the service life of the hinge be extended on the basis of a limited size.

[0079] In order to further extend the service life of the hinge, in some examples of the present application, a first positioning groove 311a for restricting the movement of the first cantilever 341 in the length direction of the first cross beam 34 may be provided on the first abutting portion 311. Further, a second positioning groove 331a for restricting the movement of the second cantilever 342 in the length direction of the first cross beam 34 may be provided on the second abutting portion 331, as Figure 11 shown.

[0080] It should be noted that in some embodiments of the present application, the structures of the first cross beam 34 and the second cross beam 35 are the same, and in some other embodiments of the present application, the structures of the first cross beam 34 and the second cross beam 35 may also be different. When the structures of the first cross beam 34 and the second cross beam 35 are the same in the embodiments of the present application, only the structure of the first cross beam 34 is introduced, and the structure of the second cross beam 35 can refer to the structure of the first cross beam 34.

[0081] See Figures 12 to 17The first cross beam 34 has a first surface 34a and a second surface 34b arranged opposite to each other in the thickness direction OZ, wherein the first cantilever 341 and the second cantilever 342 are arranged on the second surface 34b; in the width direction OX and the thickness direction OZ, the first cantilever 341 extends to one side of the first cross beam 34, and the second cantilever 342 extends to the other side of the first cross beam 34, so that in the thickness direction OZ and the width direction OX, the first cross beam 34 is protruded to form a support. The side of the first cantilever 341 away from the second cantilever 342 is the first abutting surface 341a, and the side of the second cantilever 342 away from the first cantilever 341 is the second abutting surface 342a, wherein the first abutting surface 341a cooperates with the first abutting portion 311 to support the first door panel assembly 31, and the second abutting surface 342a cooperates with the second abutting portion 331 to support the base assembly 33. The first abutting surface 341a and the second abutting surface 342a can be a plane or a curved surface.

[0082] It should be noted that the thickness direction OZ of the first beam 34 , the length direction OY of the first beam 34 , and the width direction OX of the first beam 34 are perpendicular to each other, wherein the thickness direction OZ is the direction corresponding to the thickness of the first beam 34 , the length direction OY is the opposite direction corresponding to the length of the first beam 34 , and the width direction OX is the direction corresponding to the width of the first beam 34 .

[0083] When the first cantilever 341 and the second cantilever 342 are arranged opposite to each other on the second surface 34b of the first beam 34, one first cantilever 341 and one second cantilever 342 form a group, and the first cantilever 341 and the second cantilever 342 extend along a straight line to form a V-shaped structure or a W-shaped structure. Figure 14 (a) The first cantilever 341 and the second cantilever 342 form a V-shaped structure. Figure 14 (b) forms a W-shaped structure; in some other examples of the present application, the first cantilever 341 and the second cantilever 342 can extend along the curve to form a U-shaped structure or a semicircular structure. Figure 15 (a) The first cantilever 341 and the second cantilever 342 form a U-shaped structure. Figure 15 In some examples of the present application, the first cantilever 341 and the second cantilever 342 are symmetrically arranged on the second surface 34b of the first beam 34, such as Figure 13 In some other examples of the present application, the first cantilever 341 and the second cantilever 342 are arranged in a staggered manner.

[0084] See also Figure 16, a first variable stiffness structure is provided on the side of the first cantilever 341 close to the second cantilever 342, and a second variable stiffness structure is provided on the side of the second cantilever 342 close to the first cantilever 341. When the hinge bears an impact force, under the action of the first variable stiffness structure, the first cantilever 341 and, under the action of the second variable stiffness structure, the second cantilever 342 will bend. When the first cantilever 341 bends, the stiffness of the first cantilever 341 increases with the increase in the deformation degree of the first variable stiffness structure, that is, the stiffness of the first cantilever 341 is positively correlated with the deformation degree of the first variable stiffness structure; when the second cantilever 342 bends, the stiffness of the second cantilever 342 increases with the increase in the deformation degree of the second variable stiffness structure, that is, the stiffness of the second cantilever 342 is positively correlated with the deformation degree of the second variable stiffness structure. Further, the greater the impact force, the greater the deformation degree of the first variable stiffness structure and the second variable stiffness structure, and the corresponding stiffness of the first cantilever 341 and the second cantilever 342 also gradually becomes stronger. When the first variable stiffness structure and the second variable stiffness structure are completely deformed, the stiffness of the first cantilever 341 and the second cantilever 342 reaches the strongest, thus forming a certain impact self - adaptability and gradually enhancing the stiffness.

[0085] The first variable stiffness structure includes a plurality of first deformation protrusions 341b and a plurality of first deformation grooves 341c. Among them, the first deformation protrusions 341b and the first deformation grooves 341c are arranged alternately, that is, there is a first deformed groove between every two first deformation protrusions 341b. When subjected to an impact force, the two first deformation protrusions 341b on both sides of the first deformation groove 341c approach each other, thereby deforming.

[0086] In the illustration, the first deformation protrusion 341b is a rectangular structure. In some other examples of the present application, the first deformation protrusion 341b is a triangular structure, a trapezoidal structure, etc.; the first deformation groove 341c is a rectangular structure. In some other examples of the present application, the first deformation groove 341c is a triangular structure, a trapezoidal structure, etc.

[0087] In order to further improve the ability of stiffness gradient, among the plurality of first deformation grooves 341c, the groove width d1 of the first deformation groove 341c gradually becomes wider in the direction close to the second surface 34b of the first cross - beam 34; the groove height h1 of the first deformation groove 341c gradually becomes higher in the direction close to the second surface 34b of the first cross - beam 34.

[0088] The second variable stiffness structure includes a plurality of second deformation protrusions 342b and a plurality of second deformation grooves 342c. Among them, the second deformation protrusions 342b and the second deformation grooves 342c are arranged alternately, that is, there is a second deformed groove between every two second deformation protrusions 342b. When subjected to an impact force, the two second deformation protrusions 342b on both sides of the second deformation groove 342c approach each other, thereby deforming.

[0089] In the illustration, the second deformation protrusion 342b is a rectangular structure. In some other examples of the present application, the second deformation protrusion 342b is a triangular structure, a trapezoidal structure, etc.; the second deformation groove 342c is a rectangular structure. In some other examples of the present application, the second deformation groove 342c is a triangular structure, a trapezoidal structure, etc.

[0090] In order to further improve the ability of stiffness gradient, among multiple second deformation grooves 342c, the groove width d2 of the second deformation groove 342c gradually becomes wider in the direction approaching the second surface 34b of the second cross beam 35; the groove height h2 of the second deformation groove 342c gradually becomes higher in the direction approaching the second surface 34b of the second cross beam 35.

[0091] The relatively arranged first cantilever 341 and second cantilever 342 form a group. A group of first cantilever 341 and second cantilever 342 can be symmetrically arranged about the axis of the first cross beam 34, or the group of first cantilever 341 and second cantilever 342 can be asymmetrically arranged. The form of symmetric arrangement can improve the versatility of the first cross beam. Along the length direction OY of the first cross beam 34, a group of first cantilever 341 and second cantilever 342 can be arranged, and multiple groups of first cantilever 341 and second cantilever 342 can also be arranged. As Figure 17 shown in the illustration, two groups of first cantilever 341 and second cantilever 342 are arranged in the illustration. However, the present application is not limited to this quantity.

[0092] In order to further extend the service life of the hinge, the number of groups of the first cantilever 341 and the second cantilever 342 can be set according to the quantity and arrangement position of the first guiding structures 343 of the first cross beam 34. At least one group of first cantilever 341 and second cantilever 342 is arranged beside one first guiding structure 343.

[0093] Refer to Figures 18 to 19 , the first cross beam 34 is rotatably arranged between the first door panel assembly 31 and the base assembly 33 through the first guiding structure 343; the second cross beam 35 is rotatably arranged between the second door panel assembly 32 and the base assembly 33 through the second guiding structure 353. The first guiding structure 343 includes a first guiding member 343a and a second guiding member 343b. Among them, the first guiding member 343a is rotatably matched with the first door panel assembly 31, and the second guiding member 343b is rotatably matched with the base assembly 33. The second guiding structure 353 includes a third guiding member 353a and a fourth guiding member 353b. Among them, the third guiding member 353a is rotatably matched with the base assembly 33, and the fourth guiding member 353b is rotatably matched with the second door panel assembly 32.

[0094] The first door panel assembly 31 includes a first door panel 312 and a first mounting member 313 disposed on the first door panel 312. The first mounting member 313 has a first guiding groove 313a that is rotatably engaged with the first guiding member 343a. In some examples of the present application, the first mounting member 313 and the first door panel 312 are detachably connected by fasteners. In some other examples of the present application, the first mounting member 313 and the first door panel 312 are non-detachably connected.

[0095] When the first mounting member 313 and the first door panel 312 are detachably connected, a first mounting seat 314 for mounting the first mounting member 313 is provided on the first door panel 312. Among them, a first mounting groove 314a is provided on the first mounting seat 314 to mount the first mounting member 313. The first mounting member 313 is provided with a first fastening hole 313b, and the first mounting groove 314a is provided with a second fastening hole 314c. The fastener passes through the first fastening hole 313b and the second fastening hole 314c to mount the first mounting member 313 on the first mounting seat 314. By providing the first mounting groove 314a, the first mounting member 313 can be generally flush with the first mounting seat 314, thereby reducing the volume of the hinge.

[0096] The second door panel assembly 32 includes a second door panel 322 and a second mounting member 323 disposed on the second door panel 322. The second mounting member 323 has a second guiding groove that is rotatably engaged with the second guiding member 343b. In some examples of the present application, the second mounting member 323 and the second door panel 322 are detachably connected by fasteners. In some other examples of the present application, the second mounting member 323 and the second door panel 322 are non-detachably connected.

[0097] When the second mounting member 323 and the second door panel 322 are detachably connected, a second mounting seat 324 for mounting the second mounting member 323 is provided on the second door panel 322. Among them, a second mounting groove 314b is provided on the second mounting seat 324 to mount the second mounting member 323. The second mounting member 323 is provided with a second fastening hole 314c, and the second mounting groove 314b is provided with a second fastening hole 314c. The fastener passes through the second fastening hole 314c and the second fastening hole 314c to mount the second mounting member 323 on the second mounting seat 324. By providing the second mounting groove 314b, the second mounting member 323 can be generally flush with the second mounting seat 324, thereby reducing the volume of the hinge.

[0098] Since the first cross beam 34 and the second cross beam 35 have the same structure, in some examples of the present application, the connection relationship between the first cross beam 34 and the first door panel assembly 31 and the base 332 is mainly introduced.

[0099] See Figure 20, Further, in order to limit the movement of the first mounting member 313, a second mounting groove 314b is also provided at a position of the first mounting base 314 close to the first cross beam 34. In the length direction of the first cross beam 34, the notch of the first mounting groove 314a is smaller than the notch of the second mounting groove 314b. The structure in which the first mounting member 313 is matched with the second mounting groove 314b can limit the movement of the first mounting member 313 in the length direction of the first cross beam 34, thereby further improving the mounting strength of the first mounting member 313.

[0100] It should be noted that in some examples of the present application, the first guiding member 343a and the first guiding groove 313a achieve the rotatable cooperation between the first cross beam 34 and the first door panel assembly 31 through sliding. Specifically, the first guiding member 343a includes a first guiding surface, and the first guiding surface is an arc surface. The first guiding groove 313a has two relatively arranged groove walls, and at least one of the groove walls is an arc surface, and this groove wall slides in cooperation with the first guiding surface of the first guiding member 343a. When the first guiding member 343a slides in the first guiding groove 313a, under the mutual cooperation of the arc surface groove wall and the arc surface first guiding surface, therefore, the first guiding member 343a and the first mounting member 313 can reciprocally slide along an arc track, thereby realizing the rotatable cooperation between the first cross beam 34 and the first door panel assembly 31.

[0101] In some examples of the present application, the first guiding member 343a further includes a second guiding surface, the second guiding surface is arranged opposite to the first guiding surface, and the second guiding surface is an arc surface. Both of the two relatively arranged groove walls of the first guiding groove 313a are arc surfaces. The two groove walls are correspondingly matched with the first guiding surface and the second guiding surface of the first guiding member 343a, increasing the stability of the cooperation between the first guiding member 343a and the first guiding groove 313a.

[0102] In some other examples of the present application, the first guiding member 343a is arranged on the first mounting member 313, and the first guiding groove 313a is arranged on the first cross beam 34, and the rotatable cooperation between the first cross beam 34 and the first door panel assembly 31 can also be realized.

[0103] See Figure 21 and Figure 22 , the base assembly 33 includes a base 332 and a mounting plate 333. A first guiding block 332a that is rotatably matched with the second guiding member 343b is arranged on the base 332, and the second guiding member 343b is located between the mounting plate 333 and the first guiding block 332a. In some examples of the present application, the mounting plate 333 and the base 332 are detachably connected by fasteners. In some other examples of the present application, the mounting plate 333 and the base 332 can also be non-detachably connected. When the mounting plate 333 and the base 332 are detachably connected, a mounting hole 333a is arranged on the base 332, and the fastener realizes the mounting of the mounting plate 333 on the base 332 through the mounting hole 333a.

[0104] In some examples of the present application, the second guide member 343b and the first guide block 332a achieve the rotatable cooperation between the first cross beam 34 and the base assembly 33 through sliding. Specifically, the second guide member 343b includes a third guide surface, which is an arc surface; the first guide block 332a includes a sliding surface, which is an arc surface and slidably cooperates with the third guide surface of the second guide member 343b. Therefore, the second guide member 343b and the first guide block 332a can reciprocally slide along an arc trajectory, thereby achieving the rotatable cooperation between the first cross beam 34 and the base assembly 33.

[0105] In some examples of the present application, the second guide member 343b further includes a fourth guide surface, which is arranged opposite to the first guide surface and is an arc surface, and the mounting plate 333 slidably cooperates with the fourth guide surface. The first guide block 332a and the mounting plate 333 correspondingly cooperate with the third guide surface and the fourth guide surface of the second guide member 343b, increasing the stability of the cooperation between the second guide member 343b and the first guide block 332a.

[0106] In still some other examples of the present application, the second guide member 343b is arranged on the base 332, and the first guide block 332a is arranged on the first cross beam 34, which can also achieve the rotatable cooperation between the first cross beam 34 and the base assembly 33.

[0107] As described above, it is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claimed rights.

Claims

1. A hinge, characterized in that, It includes a first door panel assembly, a second door panel assembly, a base assembly, a first cross beam and a second cross beam. Among them, the first cross beam is distributed between the first door panel assembly and the base assembly and is rotatably connected to the first door panel assembly and the base assembly; the second cross beam is distributed between the second door panel assembly and the base assembly and is rotatably connected to the second door panel assembly and the base assembly. The first cross beam includes a first surface and a second surface opposite to the first surface. A first cantilever, a second cantilever and a first guiding structure are arranged on the second surface. The first cantilever extends from the second surface towards the first door panel assembly, and the second cantilever extends from the second surface towards the base assembly. Among them, the first cross beam is rotatably connected to the first door panel assembly and the base assembly through the first guiding structure; when the hinge is in the folded state, the first cantilever abuts against the first door panel assembly, and the second cantilever abuts against the base assembly to support the first door panel assembly and the base assembly. The first door panel assembly includes a first abutting portion that cooperates with the first cantilever; the base assembly includes a second abutting portion that cooperates with the second cantilever; the first abutting portion and the second abutting portion are groove structures.

2. The hinge according to claim 1, characterized in that, The first abutting portion is provided with a first positioning groove. Along the length direction of the first cross beam, the groove wall of the first positioning groove can limit the movement of the first cantilever; the bottom of the first positioning groove cooperates with the first abutting surface of the first cantilever.

3. The hinge according to claim 2, wherein The bottom of the first positioning groove is a plane.

4. The hinge according to claim 3, wherein The second abutting portion is provided with a second positioning groove. Along the length direction of the first cross beam, the groove wall of the second positioning groove can limit the movement of the second cantilever; the bottom of the second positioning groove cooperates with the second abutting surface of the second cantilever.

5. The hinge according to claim 4, characterized in that, The bottom of the second positioning groove is a plane.

6. The hinge according to claim 1, wherein Along the width direction of the first cross beam, the first cantilever and the second cantilever are symmetrically arranged on both sides of the first cross beam.

7. The hinge according to claim 6, characterized in that, The first cantilever and the second cantilever extend along a straight line or a curve.

8. The hinge according to claim 6, characterized in that, A first variable stiffness structure is arranged on the side of the first cantilever close to the second cantilever.

9. The hinge according to claim 8, wherein The first variable stiffness structure includes a plurality of first deformation protrusions and a plurality of first deformation grooves, and among them, the first deformation protrusions and the first deformation grooves are arranged alternately.

10. The hinge according to claim 9, characterized in that, Among the plurality of first deformation grooves, the groove width of the first deformation groove gradually becomes wider towards the direction close to the second surface of the first cross beam; the groove height of the first deformation groove gradually becomes higher towards the direction close to the second surface of the first cross beam.

11. The hinge according to claim 6, wherein, A second variable stiffness structure is arranged on the side of the second cantilever close to the first cantilever.

12. The hinge according to claim 11, wherein The second variable stiffness structure includes a plurality of second deformation protrusions and a plurality of second deformation grooves, and among them, the second deformation protrusions and the second deformation grooves are arranged alternately.

13. The hinge according to claim 12, characterized in that, Among the plurality of second deformation grooves, the groove width of the second deformation groove gradually becomes wider towards the direction close to the second surface of the first cross beam; the groove height of the second deformation groove gradually becomes higher towards the direction close to the second surface of the first cross beam.

14. The hinge according to claim 6, characterized in that, One of the first cantilevers and one of the second cantilevers form a group, and multiple groups of the first cantilevers and the second cantilevers are arranged on the first cross beam.

15. The hinge according to claim 6, characterized in that, One group of the first cantilevers and the second cantilevers is arranged close to the first guiding structure.

16. The hinge according to claim 1, wherein The first guiding structure includes a first guiding member and a second guiding member. The first door panel assembly includes a first guiding groove, and the base assembly includes a first guiding block. Among them, the first guiding member is in sliding fit with the first guiding groove, and the second guiding member is in sliding fit with the first guiding block.

17. The hinge according to claim 16, wherein The first guiding member and the second guiding member are arc-shaped plate members.

18. The hinge according to any one of claims 1 to 17, characterized in that, The second cross beam includes a third surface and a fourth surface opposite to the third surface. A third cantilever, a fourth cantilever and a second guiding structure are arranged on the fourth surface. The third cantilever extends from the fourth surface towards the second door panel assembly, and the fourth cantilever extends from the fourth surface towards the base assembly. Among them, the second cross beam is rotationally connected to the second door panel assembly and the base assembly through the second guiding structure. When the hinge is in the folded state, the third cantilever abuts against the second door panel assembly, and the fourth cantilever abuts against the base assembly to support the second door panel assembly and the base assembly.

19. The hinge according to claim 18, characterized in that, The second guiding structure includes a third guiding member and a fourth guiding member. The second door panel assembly includes a second guiding groove, and the base assembly includes a second guiding block. Among them, the third guiding member is in sliding fit with the second guiding groove, and the fourth guiding member is in sliding fit with the second guiding block.

20. The hinge according to claim 19, wherein The third guiding member and the fourth guiding member are arc-shaped plate members.

21. The hinge according to claim 20, characterized in that, One group of the third cantilevers and the fourth cantilevers is arranged close to the second guiding structure.

22. An electronic device, characterized in that, It includes a first body, a second body and a hinge. Among them, the first body and the second body are respectively connected to the hinge and are unfolded or folded under the action of the hinge. The hinge is the hinge according to any one of claims 1 to 21.

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