Hinge mechanism and electronic device

Abstract

The present application discloses a hinge mechanism and an electronic device. The hinge mechanism includes a hinge unit, and the hinge unit includes: a first rotating shaft; a first swing arm sleeved on the first rotating shaft; a first cam seat disposed at a first end of the first rotating shaft; a first baffle disposed at a second end of the first rotating shaft; a second cam seat slidably connected to the first rotating shaft and located between the first cam seat and the first baffle; a first elastic member sleeved on the first rotating shaft and located between the second cam seat and the baffle; when the first swing arm rotates, the first swing arm drives the first cam seat to drive the first rotating shaft to move and acts on the first elastic member through the second cam seat, and the first swing arm drives the second cam seat to move and acts on the first elastic member.

Description

Technical Field

[0001] This application belongs to the technical field of electronic devices, and particularly relates to a hinge mechanism and an electronic device. Background Art

[0002] A folding-screen mobile phone includes a hinge mechanism. The opening and closing feel of the mobile phone and the hovering angle are related to the damping part of the hinge mechanism. In the related art, the damping force of the damping part is small, which affects the opening and closing feel of the mobile phone and the hovering angle of the mobile phone is small. Summary of the Invention

[0003] This application aims to provide a hinge mechanism and an electronic device, and at least solves the technical problem in the related art that the hovering angle of the mobile phone is small due to the small damping force of the damping part of the hinge mechanism.

[0004] To solve the above technical problem, this application is implemented as follows:

[0005] In a first aspect, an embodiment of this application provides a hinge mechanism, including a hinge unit. The hinge unit includes: a first rotating shaft; a first swing arm sleeved on the first rotating shaft; a first cam seat arranged at the first end of the first rotating shaft; a first baffle arranged at the second end of the first rotating shaft; a second cam seat slidably connected to the first rotating shaft and located between the first cam seat and the first baffle; a first elastic member sleeved on the first rotating shaft and located between the second cam seat and the baffle. When the first swing arm rotates, the first swing arm drives the first cam seat to drive the first rotating shaft to move and act on the first elastic member through the second cam seat, and the first swing arm drives the second cam seat to move and act on the first elastic member.

[0006] In a second aspect, an embodiment of this application provides an electronic device, including: a first housing; a second housing; and the hinge mechanism according to any one of the embodiments in the first aspect, where the first housing and the second housing are rotatably connected through the hinge mechanism.

[0007] In an embodiment of this application, the hinge mechanism includes a hinge unit. The hinge unit includes a first rotating shaft, a first swing arm, a first cam seat, a first baffle, a second cam seat, and a first elastic member.

[0008] When the mobile phone is turned on, the first swing arm is rotated, and the first swing arm drives the first cam seat to move in a direction away from the second cam seat (the distance of the movement of the first cam seat is denoted as x1). The movement of the first cam seat in a direction away from the second cam seat can drive the first rotating shaft and the first baffle to move towards the second cam seat. That is to say, the space between the first baffle and the second cam seat is compressed. In this way, the first elastic member is squeezed under the action of the first baffle and the second cam seat, thereby causing the compression of the first elastic member, and then generating an elastic force kx1 (where k is the elastic coefficient of the first elastic member), thereby generating a damping force f1 between the first cam seat and the first swing arm and between the contact surfaces of the first cam seat and the first rotating shaft (where f1 is proportional to kx1).

[0009] At the same time, when the first swing arm is rotated, the first swing arm drives the second cam seat to move in a direction away from the first cam seat (the distance of the movement of the second cam seat is denoted as x2) and acts on the first elastic member. That is to say, the space between the first baffle and the second cam seat is compressed. In this way, the first elastic member is squeezed under the action of the first baffle and the second cam seat, thereby causing the compression of the first elastic member, and then generating an elastic force kx2 (where k is the elastic coefficient of the first elastic member), thereby generating a damping force f2 between the second cam seat and the first swing arm and between the contact surfaces of the first swing arm and the first rotating shaft (where f2 is proportional to kx2).

[0010] That is to say, when the first swing arm is rotated, the first baffle will move towards the second cam seat, and the second cam seat will move towards the first baffle. In this way, the generated damping force is the sum of f1 and f2.

[0011] This setting increases the damping force of the hinge mechanism. In this way, the opening and closing feel of the electronic device can be effectively improved, and it is beneficial to increase the hovering angle of the electronic device.

[0012] It can be understood that the hinge mechanism is connected to the first housing and the second housing of the electronic device. When the screen of the electronic device is opened, the screen has a rebounding force and gravity, and the damping force of the hinge mechanism can offset the rebounding force and gravity of the screen. When the damping force is greater than the rebounding force and gravity of the screen, the electronic device can hover, and the usage requirements for large-angle hovering of the product can be met.

[0013] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent in part from the following description, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, where:

[0015] Figure 1It is a schematic structural diagram of a hinge mechanism from a first perspective according to an embodiment of the present application;

[0016] Figure 2 It is a schematic structural diagram of a hinge mechanism from a second perspective according to an embodiment of the present application;

[0017] Figure 3 It is a partial schematic structural diagram of a hinge mechanism from a first perspective according to an embodiment of the present application;

[0018] Figure 4 It is a partial schematic structural diagram of a hinge mechanism from a second perspective according to an embodiment of the present application;

[0019] Figure 5 It is an exploded view of a hinge mechanism according to an embodiment of the present application;

[0020] Figure 6 It is an exploded view of a hinge unit according to an embodiment of the present application;

[0021] Figure 7 It is an exploded view of a partial structure of a hinge unit according to an embodiment of the present application;

[0022] Figure 8 It is a schematic diagram of a first swing arm driving a first cam seat to move according to an embodiment of the present application;

[0023] Figure 9 It is a schematic diagram of a first swing arm driving a second cam seat to move according to an embodiment of the present application;

[0024] Figure 10 It is a schematic diagram of a first swing arm driving a first cam seat and a second cam seat to move together according to an embodiment of the present application.

[0025] Reference numerals:

[0026] Figures 1 to 10 The corresponding relationship between the reference numerals and the component names in

[0027] 100 Hinge mechanism, 200 Bracket, 300 Hinge unit, 314 Limiting member, 316 First rotating shaft, 318 Second baffle, 320 Limiting block, 322 Connecting part, 324 First baffle, 326 First cam seat, 328 Second cam seat, 329 First cam portion, 330 Second cam portion, 332 Gear shaft group, 334 First swing arm, 336 Arm body, 338 First pipe body, 339 Tooth portion, 340 Second pipe body, 341 Third cam portion, 342 Fourth cam portion, 344 First elastic member, 346 Second elastic member, 348 Second rotating shaft, 350 Annular groove, 352 Card slot, 354 First frame body, 356 First shaft hole, 360 Second swing arm, 362 Arc-shaped groove, 364 Slide block, 366 Second frame body, 368 Second shaft hole, 370 Third rotating shaft, 372 First groove body, 374 First connecting block, 376 Second connecting block, 380 Second groove body, 400 Door panel, 500 Hinge cover. Detailed implementation manners

[0028] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0029] The terms "first" and "second" in the description and claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0030] In the description of the present application, it should be noted that, unless otherwise clearly defined and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0031] The following will be combined with Figures 1 to 10 Describe the hinge mechanism 100 and the electronic device according to the embodiments of the present application.

[0032] As Figure 1 、 Figure 2, Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown in Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 , the hinge mechanism 100 according to some embodiments of the present application includes a hinge unit 300. The hinge unit 300 includes: a first rotating shaft 316; a first swing arm 334 sleeved on the first rotating shaft 316; a first cam seat 326 provided at a first end of the first rotating shaft 316; a first baffle 324 provided at a second end of the first rotating shaft 316; a second cam seat 328 slidably connected to the first rotating shaft 316 and located between the first cam seat 326 and the first baffle 324; a first elastic member 344 sleeved on the first rotating shaft 316 and located between the second cam seat 328 and the baffle. When the first swing arm 334 rotates, the first swing arm 334 drives the first cam seat 326 to drive the first rotating shaft 316 to move and acts on the first elastic member 344 through the second cam seat 328, and the first swing arm 334 drives the second cam seat 328 to move and acts on the first elastic member 344.

[0033] In this embodiment, the hinge mechanism 100 includes a hinge unit 300. The hinge unit 300 includes a first rotating shaft 316, a first swing arm 334, a first cam seat 326, a first baffle 324, a second cam seat 328 and a first elastic member 344.

[0034] The movement process of the first swing arm 334 driving the first cam seat 326 and the second cam seat 328 is disassembled.

[0035] Figure 8 The process of the first swing arm 334 driving the first cam seat 326 to move is shown.

[0036] Specifically, when the mobile phone is opened, the first swing arm 334 is rotated. The first swing arm 334 drives the first cam seat 326 to move in a direction away from the second cam seat 328 (the distance of the movement of the first cam seat 326 is denoted as x1). The movement of the first cam seat 326 in a direction away from the second cam seat 328 can drive the first rotating shaft 316 and the first baffle 324 to move towards the second cam seat 328, that is, the space between the first baffle 324 and the second cam seat 328 is compressed. In this way, the first elastic member 344 is squeezed under the action of the first baffle 324 and the second cam seat 328, resulting in the compression of the first elastic member 344, and further generating an elastic force kx1 (where k is the elastic coefficient of the first elastic member 344), thereby generating a damping force f1 between the first cam seat 326 and the first swing arm 334 and between the contact surfaces of the first cam seat 326 and the first rotating shaft 316 (where f1 is proportional to kx1).

[0037] Figure 9 The process of the first swing arm 334 driving the second cam seat 328 to move is shown.

[0038] Specifically, when the mobile phone is turned on, the first swing arm 334 is rotated, and the first swing arm 334 drives the second cam seat 328 to move in a direction away from the first cam seat 326 (the distance of the movement of the second cam seat 328 is denoted as x2) and acts on the first elastic member 344. That is, the space between the first baffle 324 and the second cam seat 328 is compressed. In this way, the first elastic member 344 is squeezed under the action of the first baffle 324 and the second cam seat 328, resulting in the compression of the first elastic member 344, and then generating an elastic force kx2 (where k is the elastic coefficient of the first elastic member 344), thereby generating a damping force f2 between the second cam seat 328 and the first swing arm 334 and between the contact surfaces of the first swing arm 334 and the first rotating shaft 316 (where f2 is proportional to kx2).

[0039] As Figure 10 The process of the first swing arm 334 driving the first cam seat 326 and the second cam seat 328 to move together is shown.

[0040] Specifically, when the mobile phone is turned on, the first swing arm 334 is rotated, the first baffle 324 will move in the direction of the second cam seat 328, and the second cam seat 328 will move in the direction of the first baffle 324. In this way, the generated damping force is the sum of f1 and f2.

[0041] This setting increases the damping force of the hinge mechanism 100, so that the opening and closing feel of the electronic device can be effectively improved, and it is beneficial to increase the hovering angle of the electronic device.

[0042] It can be understood that the hinge mechanism 100 is connected to the first housing and the second housing of the electronic device. When the screen of the electronic device is turned on, the screen has a rebounding force and a gravity, and the damping force of the hinge mechanism 100 can offset the rebounding force and the gravity of the screen. When the damping force is greater than the rebounding force and the gravity of the screen, the electronic device can hover, and the usage requirements of large-angle hovering of the product can be met.

[0043] In some embodiments, as Figure 7 shown, the number of the first rotating shafts 316, the first swing arms 334 and the first elastic members 344 are all multiple. At least one first swing arm 334 and at least one first elastic member 344 are sleeved on each first rotating shaft 316; the hinge mechanism 100 further includes a gear shaft group 332, and a plurality of first rotating shafts 316 are spaced apart and distributed on the circumferential side of the gear shaft group 332, and each first swing arm 334 meshes with the gear shaft group 332.

[0044] In this embodiment, there are multiple first rotating shafts 316, multiple first swing arms 334, and multiple first elastic members 344. At least one first swing arm 334 is sleeved on each first rotating shaft 316. At least one first elastic member 344 is sleeved on each first rotating shaft 316.

[0045] Specifically, there are two first swing arms 334. The gear shaft group 332 is located between the two first swing arms 334, and each first swing arm 334 meshes with the gear shaft group 332. Among them, the rotation of one first swing arm 334 is transmitted to the other first swing arm 334 on the opposite side through the meshing movement of the gear shaft group 332, and then damping forces f1' and f2' are generated on the swing arm on the opposite side. Finally, the movement is transmitted to the second frame 366 of the hinge mechanism 100 on the opposite side, so that the hinge unit 300 moves symmetrically.

[0046] In some other embodiments, multiple first swing arms 334 are sleeved on the first rotating shaft 316.

[0047] In some embodiments, as shown, the first cam seat 326 is provided with a first cam portion 329, the second cam seat 328 is provided with a second cam portion 330, the first swing arm 334 is provided with a third cam portion 341 and a fourth cam portion 342, the third cam portion 341 is connected in cooperation with the first cam portion 329, and the fourth cam portion 342 is connected in cooperation with the second cam portion 330.

[0048] Specifically, when the mobile phone is turned on, the first swing arm 334 is rotated, and the third cam portion 341 provided on the first swing arm 334 acts in cooperation with the first cam portion 329 provided on the first cam seat 326 to drive the first cam seat 326 to move in a direction away from the second cam seat 328. Figure 7 Shown, the first cam seat 326 is provided with a first cam portion 329,

[0049] The second cam seat 328 is provided with a second cam portion 330, the first swing arm 334 is provided with a third cam portion 341 and a fourth cam portion 342, the third cam portion 341 is connected in cooperation with the first cam portion 329, and the fourth cam portion 342 is connected in cooperation with the second cam portion 330.

[0050] Specifically, when the mobile phone is turned on, the first swing arm 334 is rotated, and the third cam portion 341 provided on the first swing arm 334 acts in cooperation with the first cam portion 329 provided on the first cam seat 326 to drive the first cam seat 326 to move in a direction away from the second cam seat 328.

[0051] 0 Specifically, when the mobile phone is turned on, the first swing arm 334 is rotated, and the fourth

[0052] The cam portion 342 acts in cooperation with the second cam portion 330 provided on the second cam seat 328 to drive the second cam seat 328 to move in a direction away from the first cam seat 326.

[0053] That is, the first cam portion 329 and the third cam portion 341 cooperate, and the second cam portion 330 and the fourth

[0054] The cam portion 342 cooperates to provide an effective and reliable structural support for the first swing arm 334 to drive the first cam seat 326 and the second cam seat 5 328 to move.

[0055] It can be understood that the first cam seat 326 is provided with a first cam portion 329, the second cam portion 330 can drive the first cam portion 329 on the first cam seat 326 to move in a direction away from the second cam seat 328, and the first cam portion 329 can drive the first cam seat 326 to move in a direction away from the second cam seat 328.

[0056] 0 In some embodiments, the first cam seat 326 is provided with a first magnetic portion, the second cam seat 328 is provided with a second magnetic portion, and the first swing arm 334 is provided with a third magnetic portion and a fourth magnetic portion; wherein, when the first swing arm 334 rotates, the third magnetic portion moves to a position where it faces the first magnetic portion, and the fourth magnetic portion moves to a position where it faces the second magnetic portion. The third magnetic portion and the first magnetic portion repel each other magnetically, and the fourth magnetic portion and the second magnetic portion repel each other magnetically to drive the first cam seat 326 and the second cam seat 328 to move.

[0057] In this embodiment, by reasonably defining the structures of the first cam seat 326, the second cam seat 328, and the first swing arm 334, the first cam seat 326 is provided with a first magnetic portion, the second cam seat 328 is provided with a second magnetic portion, the first swing arm 334 is provided with a third magnetic portion and a fourth magnetic portion, the third magnetic portion and the first magnetic portion repel each other magnetically, and the fourth magnetic portion and the second magnetic portion repel each other magnetically, providing an effective and reliable structural support for the first swing arm 334 to drive the first cam seat 326 and the second cam seat 328 to move.

[0058] Specifically, both the third magnetic portion and the fourth magnetic portion include coils, and the coils are connected to the controller of the electronic device. By controlling the current flow direction and current magnitude of the coils, the purpose of the third magnetic portion and the first magnetic portion repelling each other magnetically, and the fourth magnetic portion and the second magnetic portion repelling each other magnetically can be achieved.

[0059] Specifically, both the third magnetic portion and the fourth magnetic portion include magnets. The magnet of the third magnetic portion repels the magnet of the first magnetic portion, and the magnet of the fourth magnetic portion repels the magnet of the second magnetic portion.

[0060] In some embodiments, as Figure 7 shown, the hinge unit 300 further includes: a limiting member 314, sleeved on the first rotating shaft 316, and along the axial direction of the first rotating shaft 316, the limiting member 314 is located between the gear shaft group 332 and the second cam seat 328.

[0061] In this embodiment, the hinge unit 300 further includes a limiting member 314, and the limiting member 314 is sleeved on the first rotating shaft 316. The limiting member 314 is located between the gear shaft group 332 and the second cam seat 328. The limiting member 314 can limit the first rotating shaft 316 in the radial direction of the first rotating shaft 316, which can ensure the matching dimensions of multiple first rotating shafts 316. At the same time, the limiting member 314 can limit the gear shaft group 332 in the axial direction of the first rotating shaft 316 and limit the movement distance of the second cam seat 328.

[0062] In some embodiments, as Figure 7 shown, the limiting member 314 includes: a limiting block 320, located between the gear shaft group 332 and the second cam seat; a plurality of connecting portions 322, the plurality of connecting portions 322 are connected to the circumferential side of the limiting block 320, and each first rotating shaft 316 passes through a connecting portion 322.

[0063] In this embodiment, the structure of the limiting member 314 is further refined. Specifically, the limiting member 314 includes a limiting block 320 and a plurality of connecting portions 322. The plurality of connecting portions 322 are connected to the circumferential side of the limiting block 320, and each first rotating shaft 316 passes through a connecting portion 322. The first rotating shaft 316 can move relative to the connecting portion 322. The limiting member 314 can limit the first rotating shaft 316 in the radial direction of the first rotating shaft 316, which can ensure the matching dimensions of multiple first rotating shafts 316. At the same time, the limiting member 314 can limit the gear shaft group 332 in the axial direction of the first rotating shaft 316 and limit the movement distance of the second cam seat 328.

[0064] Specifically, the connecting portion 322 is a tubular structure.

[0065] In some embodiments, as Figure 7 shown, the first swing arm 334 includes: an arm body 336; a first tube body 338, the first tube body 338 is sleeved on the first rotating shaft 316 and is located between the connecting portion 322 and the first cam seat 326. The side wall of the first tube body 338 is provided with a tooth portion 339, and the tooth portion 339 meshes with the gear shaft group 332. The first tube body 338 is used to drive the first cam seat 326 to move; a second tube body 340, the first tube body 338 and the second tube body 340 are connected to the same side of the arm body 336. The second tube body 340 is sleeved on the first rotating shaft 316 and is located between the connecting portion 322 and the second cam seat 328. The second tube body 340 is used to drive the second cam seat 328 to move.

[0066] In this embodiment, the first swing arm 334 includes an arm body 336, a first tube body 338, and a second tube body 340. The first tube body 338 and the second tube body 340 are connected to the same side of the arm body 336, and the connecting portion 322 is located between the first tube body 338 and the second tube body 340. The connecting portion 322 can axially limit the first tube body 338 and the second tube body 340 along the axis of the first rotating shaft 316, and thus can play a role in axially limiting the first swing arm 334 along the axis of the first rotating shaft 316. So that the first swing arm 334 can rotate around the first rotating shaft 316 without axially moving along the first rotating shaft 316.

[0067] The side wall of the first tube body 338 is provided with a tooth portion 339, the end of the first tube body 338 away from the connecting portion 322 is provided with a third cam portion 341, and the end of the second tube body 340 away from the connecting portion 322 is provided with a fourth cam portion 342. It can not only meet the use requirements of the meshing of the first swing arm 334 and the gear shaft group 332, but also meet the use requirements of the first swing arm 334 driving the first cam seat 326 and the second cam seat 328 to move.

[0068] In some embodiments, as Figure 7 shown, the hinge unit 300 further includes: a second rotating shaft 348, which is slidably connected to the second cam seat 328, and a plurality of first rotating shafts 316 are spaced apart from the circumference of the second rotating shaft 348. The first baffle 324 is connected to the second rotating shaft 348. A second elastic member 346 is sleeved on the second rotating shaft 348. An annular groove 350 is provided on each of the first rotating shaft 316 and the second rotating shaft 348. The first baffle 324 is provided with a clamping groove 352, and the clamping groove 352 is clamped in the annular groove 350; a plurality of second baffles 318, and one second baffle 318 is provided on each first rotating shaft 316. The second baffle 318 abuts against the side of the first cam seat 326 away from the second cam seat 328.

[0069] In this embodiment, the hinge unit 300 further includes a second rotating shaft 348 and a plurality of second baffles 318. The second rotating shaft 348 is located between the plurality of first rotating shafts 316, and the second rotating shaft 348 is slidably connected to the second cam seat 328, and the second rotating shaft 348 does not hinder the sliding of the second cam seat 328. In addition, a second elastic member 346 is sleeved on the second rotating shaft 348. This setting increases the number of elastic members of the hinge unit 300, which is beneficial to increasing the damping force of the hinge mechanism 100, can ensure the opening and closing feel of the electronic device, and can meet the use requirements of the large-angle hovering of the electronic device. And this setting increases the supporting area for the second cam seat 328, which is beneficial to improving the sliding stability and reliability of the second cam seat 328.

[0070] It can be understood that each first rotating shaft 316 and second rotating shaft 348 is provided with an annular groove 350, and the first baffle 324 is provided with a clamping groove 352, and the clamping groove 352 is clamped in the annular groove 350. The clamping groove 352 and the annular groove 350 cooperate to limit the first baffle 324.

[0071] Furthermore, each first rotating shaft 316 is slidably connected to the first cam seat 326, the limiting member 314, and the second cam seat 328. The first baffle 324 is connected to each first rotating shaft 316, and a second baffle 318 is provided on each first rotating shaft 316, and the second baffle 318 is located on the side of the first cam seat 326 away from the second cam seat 328.

[0072] Specifically, the first rotating shaft 316 passes through the first cam seat 326, the limiting member 314, and the second cam seat 328. Along the axial direction of the first rotating shaft 316, the first rotating shaft 316 can move relative to any one of the first cam seat 326, the limiting member 314, and the second cam seat 328. It can also be understood that the first cam seat 326 can slide in the axial direction of the first rotating shaft 316, and the second cam seat 328 can slide in the axial direction of the first rotating shaft 316.

[0073] Specifically, when the mobile phone is turned on, the first swing arm 334 is rotated, and the third cam portion 341 provided on the first swing arm 334 cooperates with the first cam portion 329 provided on the first cam seat 326 to drive the first cam seat 326 to move in a direction away from the second cam seat 328. Since the second baffle 318 of the first rotating shaft 316 is located on one side of the first cam seat 326, after the first cam seat 326 moves a preset distance and contacts the second baffle 318, when the first cam seat 326 continues to move, it can drive the first rotating shaft 316 to move in a direction away from the second cam seat 328, and the movement of the first rotating shaft 316 can drive the first baffle 324 to move towards the second cam seat 328. The space between the first baffle 324 and the second cam seat 328 is compressed. Assuming that the second cam seat 328 does not move, the first cam seat 326 drives the first baffle 324 to move through the first rotating shaft 316, and the first baffle 324 presses the first elastic member 344, thereby causing the compression of the first elastic member 344 and further generating an elastic force kx1.

[0074] Specifically, when the mobile phone is turned on, the first swing arm 334 is rotated, and the fourth cam portion 342 provided on the first swing arm 334 cooperates with the second cam portion 330 provided on the second cam seat 328 to drive the second cam seat 328 to move in a direction away from the first cam seat 326 (the distance of the movement of the second cam seat 328 is denoted as x2). Assuming that the first rotating shaft 316 does not move, the first baffle 324 will not move accordingly. The movement of the second cam seat 328 causes the first elastic member 344 to be compressed, and further generates an elastic force kx2.

[0075] As shown Figure 7 in FIG. Figure 7 , the gear shaft group 332 includes a plurality of gear shafts, and each gear shaft is connected between the first cam seat 326 and the limiting member 314 (such as the limiting block 320 of the limiting member 314). The plurality of gear shafts are meshed and can move relative to each other.

[0076] Specifically, the gear shaft includes a shaft and a gear, and the gear is provided on the shaft. The gear and the shaft can be integrally formed, or the gear and the shaft can be detachably connected.

[0077] Specifically, the first elastic member 344 abuts between the first baffle 324 and the second cam seat 328.

[0078] In some embodiments, as shown Figure 7 in FIG. Figure 7 , the hinge mechanism 100 further includes a bracket 200, and the hinge unit 300 further includes: a first frame body 354 provided on the bracket 200, the first frame body 354 is provided with a plurality of first shaft holes 356, and each first shaft hole 356 is connected in cooperation with a first rotating shaft 316; a plurality of second swing arms 360, and the plurality of second swing arms 360 are all rotatably connected to the first frame body 354. Along the axial direction of the first rotating shaft 316, each first swing arm 334 is correspondingly arranged with a second swing arm 360.

[0079] In this embodiment, the hinge mechanism 100 further includes a bracket 200, and the hinge unit 300 further includes a first frame body 354 and a plurality of second swing arms 360, and any one of the plurality of second swing arms 360 is rotatably connected to the first frame body 354.

[0080] The first frame body 354 functions to support and define the swinging path of the plurality of second swing arms 360.

[0081] The first frame body 354 is provided with a plurality of first shaft holes 356, and each first shaft hole 356 is connected in cooperation with a first rotating shaft 316. Specifically, the end portion of the first rotating shaft 316 can be inserted into the first shaft hole 356, and the first frame body 354 functions to limit the first rotating shaft 316. Wherein, the depth of the first shaft hole 356 is greater than the length of the first rotating shaft 316 located in the first shaft hole 356, so as to provide a space for the first rotating shaft 316 to move.

[0082] The matching structure of the first frame body 354 and the plurality of second swing arms 360 can meet the functions of the hinge unit 300, and this setting can make the rotation center of the hinge unit 300 located in the middle of the hinge unit 300 to ensure the stability and reliability of the movement of the hinge unit 300.

[0083] Specifically, as shown Figure 6 in FIG. Figure 6 , the first connecting block 374 of the second swing arm 360 is connected to the first groove body 372 of the second frame body 366.

[0084] In some embodiments, the first frame 354 is provided with multiple sets of arc-shaped grooves 362, and each set of arc-shaped grooves 362 includes a plurality of arc-shaped grooves 362 arranged at intervals along the axial direction of the first rotating shaft 316; each second swing arm 360 is provided with a plurality of sliders 364, and each slider 364 can slide within one arc-shaped groove 362.

[0085] In this embodiment, by reasonably setting the cooperation structure of the first frame 354 and the multiple second swing arms 360, the first frame 354 is provided with multiple sets of arc-shaped grooves 362, the multiple sets of arc-shaped grooves 362 are arranged at intervals, and each set of arc-shaped grooves 362 includes a plurality of arc-shaped grooves 362.

[0086] Each second swing arm 360 is provided with a plurality of sliders 364, and each slider 364 is connected in cooperation with one arc-shaped groove 362. Specifically, each slider 364 can slide within one arc-shaped groove 362. This setting can meet the use requirements of the rotational connection between the second swing arm 360 and the first frame 354. The cooperation between the arc-shaped groove 362 and the slider 364 can limit the swing angle of the second swing arm 360.

[0087] It can be understood that the multiple sliders 364 of the second swing arm 360 cooperate with a set of arc-shaped grooves 362 of the first frame 354, and each set of arc-shaped grooves 362 can limit the second swing arm 360 to prevent the second swing arm 360 from moving erratically.

[0088] In some embodiments, as Figure 6 shown, the hinge unit 300 further includes: two second frames 366, the first frame 354 is located between the two second frames 366, and each second frame 366 is hingedly connected to a first swing arm 334 and a second swing arm 360; the hinge mechanism 100 further includes two door panels 400, the bracket 200 is located between the two door panels 400, and each door panel 400 is connected to a second frame 366.

[0089] In this embodiment, the hinge unit 300 further includes two second frames 366, the first frame 354 is located between the two second frames 366, and each second frame 366 is hingedly connected to a first swing arm 334 and a second swing arm 360. The hinge mechanism 100 further includes two door panels 400, and each door panel 400 is connected to a second frame 366. The door panel 400 is used to be connected to a housing of an electronic device to meet the use requirements of opening and closing the electronic device.

[0090] In some embodiments, as Figure 1 shown, the hinge mechanism 100 further includes: a hinge cover 500, which is covered on the hinge unit 300.

[0091] In this embodiment, the hinge mechanism 100 further includes a hinge cover 500. The hinge cover 500 is disposed on the hinge unit 300. The hinge cover 500 has the function of covering the hinge unit 300. That is to say, the hinge cover 500 plays a role in appearance decoration, so that the hinge unit 300 will not be exposed, which can ensure the aesthetic appearance of the hinge mechanism 100.

[0092] An electronic device according to some other embodiments of the present application includes: a first housing; a second housing; and the hinge mechanism 100 of any of the above embodiments. The first housing and the second housing are rotatably connected by the hinge mechanism 100.

[0093] Since the electronic device according to the embodiment of the present application includes the hinge mechanism 100 of the above embodiment, it has all the beneficial effects of the above hinge mechanism 100, which will not be elaborated one by one here.

[0094] Specifically, the electronic device may be a mobile terminal such as a mobile phone, a wearable device, a tablet computer, a laptop computer, a mobile computer, an augmented reality device (also known as an AR device), a virtual reality device (also known as a VR device), a handheld game console, etc.

[0095] Specifically, the first housing is connected to one door panel 400, and the second housing is connected to the other door panel 400.

[0096] It can be understood that the electronic device includes a display screen. The first part of the display screen is connected to the first housing, and the second part of the display screen is connected to the second housing. As the electronic device is unfolded or folded, the area of the display screen of the electronic device changes, so that the area of the available display area of the display screen can be changed to meet the user's demand for using a large display screen.

[0097] Specifically, the hinge mechanism 100 of the present application has a large damping force, so as to improve the opening and closing feel of the electronic device. At the same time, this structural setting enables the first rotating shaft 316 to only bear the load-bearing function, improving the reliability of the use of the hinge mechanism 100. At the same time, by adding the bracket 200 and locking the hinge unit 300 on the bracket 200, the consistency of the hinge mechanism 100 is improved.

[0098] Specifically, as Figures 1 to 5 shown, the hinge mechanism 100 includes a hinge unit 300, a bracket 200, a door panel 400, and a hinge cover 500.

[0099] Specifically, the hinge unit 300 is hinged to the second groove body 380 of the door panel 400 through the second connecting block 376 of the second frame body 366 (forming a rotating pair), so as to combine the door panel 400 and the hinge unit 300 together.

[0100] Specifically, the hinge unit 300 is locked to the bracket 200 by screws.

[0101] Specifically, the hinge cover 500 is locked to the hinge unit 300 by screws, and the hinge cover 500 serves as an exterior decoration.

[0102] Specifically, the third rotating shaft 370 of the second swing arm 360 is connected to the second shaft hole 368 of the second frame body 366 (the third rotating shaft 370 is inserted into the second shaft hole 368), forming a rotating pair. The second frame body 366 restricts the second swing arm 360 from moving axially.

[0103] Specifically, the second swing arm 360 is rotatably connected to the first frame body 354, and the first frame body 354 can restrict the second swing arm 360 from moving axially.

[0104] As Figure 6 shown, the hinge unit 300 includes a limiting member 314, a gear shaft group 332, two first rotating shafts 316, a second rotating shaft 348, a first cam seat 326, a second cam seat 328, two first swing arms 334, a first elastic member 344, a second elastic member 346, and a first baffle 324.

[0105] Specifically, both ends of the gear shaft group 332 are respectively installed in corresponding holes of the first cam seat 326 and the limiting member 314. The bracket 200 is provided with a limiting structure, and the limiting structure cooperates with the limiting member 314 to restrict the displacement of the gear shaft group 332.

[0106] Specifically, the first cam seat 326 is slidably connected to the first rotating shaft 316, and the first cam seat 326 can slide axially along the first rotating shaft 316. One end of the first cam seat 326 facing away from the second cam seat 328 is limited by the second baffle 318 on the first rotating shaft 316, and one end of the first cam seat 326 facing the second cam seat 328 is restricted in position by the third cam portion 341 and the fourth cam portion 342 on the first swing arm 334.

[0107] Specifically, the first swing arm 334 is rotatably connected to the first rotating shaft 316. Both ends of the first swing arm 334 are respectively restricted in position by the first cam portion 329 on the first cam seat 326 and the second cam portion 330 on the second cam seat 328. In addition, the tooth portion 339 on the first swing arm 334 meshes with the gear shaft group 332.

[0108] Specifically, the first rotating shaft 316 is slidably connected to the limiting member 314. The limiting member 314 is locked to the bracket 200 by screws, thereby restricting the displacement of the limiting member 314.

[0109] Specifically, the first rotating shaft 316 is slidably connected to the second cam seat 328. One end of the second cam seat 328 facing the first cam seat 326 is restricted in position by the fourth cam portion 342 of the first swing arm 334, and one end of the second cam seat 328 facing away from the first cam seat 326 is restricted in position by the first elastic member 344.

[0110] Specifically, a first elastic member 344 is provided on each first rotating shaft 316, and a second elastic member 346 is provided on the middle second rotating shaft 348. One end of the second rotating shaft 348 is restricted in position by the second cam seat 328, and the other end of the second rotating shaft 348 is restricted in position by the first baffle 324.

[0111] Specifically, the first rotating shaft 316 of the present application serves as a load-bearing member and does not transmit motion. Therefore, the force on the first rotating shaft 316 is optimized, and the reliability of the hinge mechanism 100 during use is improved.

[0112] Specifically, the first rotating shaft 316 of the present application serves as a load-bearing member and does not transmit motion. Therefore, the force on the first rotating shaft 316 is optimized, and the reliability of the hinge mechanism 100 during use is improved.

[0113] Specifically, the number of hinge units 300 can be one or more. When the number of hinge units 300 is more than one, the multiple hinge units 300 are fixed to the bracket 200.

[0114] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0115] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. A hinge mechanism, characterized in that, Comprising a hinge unit, the hinge unit including: A first rotating shaft; A first swing arm sleeved on the first rotating shaft; A first cam seat provided at the first end of the first rotating shaft; A first baffle provided at the second end of the first rotating shaft; A second cam seat slidably connected to the first rotating shaft and located between the first cam seat and the first baffle; A first elastic member sleeved on the first rotating shaft and located between the second cam seat and the baffle; When the first swing arm rotates, the first swing arm drives the first cam seat to drive the first rotating shaft to move and acts on the first elastic member through the second cam seat, and the first swing arm drives the second cam seat to move and acts on the first elastic member.

2. The hinge mechanism according to claim 1, wherein The number of the first rotating shafts, the first swing arms and the first elastic members is multiple, and at least one first swing arm and at least one first elastic member are sleeved on each first rotating shaft; The hinge mechanism further includes a gear shaft group, and the multiple first rotating shafts are spaced apart and distributed on the circumferential side of the gear shaft group, and each first swing arm meshes with the gear shaft group.

3. The hinge mechanism according to claim 1 or 2, characterized in that, The first cam seat is provided with a first cam portion, the second cam seat is provided with a second cam portion, the first swing arm is provided with a third cam portion and a fourth cam portion, the third cam portion is in mating connection with the first cam portion, and the fourth cam portion is in mating connection with the second cam portion.

4. The hinge mechanism according to claim 1 or 2, characterized in that, The first cam seat is provided with a first magnetic portion, the second cam seat is provided with a second magnetic portion, and the first swing arm is provided with a third magnetic portion and a fourth magnetic portion; Wherein, when the first swing arm rotates, the third magnetic portion moves to the position of the first magnetic portion, the fourth magnetic portion moves to the position of the second magnetic portion, the third magnetic portion is magnetically repulsive to the first magnetic portion, and the fourth magnetic portion is magnetically repulsive to the second magnetic portion to drive the first cam seat and the second cam seat to move.

5. The hinge mechanism according to claim 2, characterized in that, The hinge unit further includes: A limiting member sleeved on the first rotating shaft, and along the axial direction of the first rotating shaft, the limiting member is located between the gear shaft group and the second cam seat.

6. The hinge mechanism according to claim 5, characterized in that, The limiting member includes: A limiting block located between the gear shaft group and the second cam seat; A plurality of connecting portions, the plurality of connecting portions are connected to the circumferential side of the limiting block, and each first rotating shaft passes through one connecting portion.

7. The hinge mechanism according to claim 6, characterized in that, The first swing arm includes: An arm body; A first tube body sleeved on the first rotating shaft and located between the connecting portion and the first cam seat, the side wall of the first tube body is provided with a tooth portion, the tooth portion meshes with the gear shaft group, and the first tube body is used to drive the first cam seat to move; A second tube body, the first tube body and the second tube body are connected to the same side of the arm body, the second tube body is sleeved on the first rotating shaft and located between the connecting portion and the second cam seat, and the second tube body is used to drive the second cam seat to move.

8. The hinge mechanism according to claim 2, characterized in that, The hinge unit further includes: The second rotating shaft is slidably connected to the second cam seat, and a plurality of the first rotating shafts are spaced apart and distributed on the circumferential side of the second rotating shaft. The first baffle is connected to the second rotating shaft, and a second elastic member is sleeved on the second rotating shaft. Each of the first rotating shaft and the second rotating shaft is provided with an annular groove, and the first baffle is provided with a clamping groove which is clamped in the annular groove; A plurality of second baffles, one of the second baffles is provided on each of the first rotating shafts, and the second baffle abuts against a side of the first cam seat away from the second cam seat.

9. The hinge mechanism according to claim 1 or 2, characterized in that, The hinge mechanism further includes a bracket, and the hinge unit further includes: A first frame body is provided on the bracket. The first frame body is provided with a plurality of first shaft holes, and each of the first shaft holes is in fit connection with one of the first rotating shafts; A plurality of second swing arms, the plurality of second swing arms are all rotatably connected to the first frame body, and along the axial direction of the first rotating shaft, each of the first swing arms is correspondingly arranged with one of the second swing arms.

10. The hinge mechanism according to claim 9, characterized in that, The first frame body is provided with a plurality of groups of arc-shaped grooves, and each group of arc-shaped grooves includes a plurality of arc-shaped grooves arranged at intervals along the axial direction of the first rotating shaft; Each of the second swing arms is provided with a plurality of sliders, and each of the sliders can slide in one of the arc-shaped grooves.

11. The hinge mechanism according to claim 9, characterized in that, The hinge unit further includes: Two second frame bodies, the first frame body is located between the two second frame bodies, and each of the second frame bodies is hingedly connected to one of the first swing arms and one of the second swing arms; The hinge mechanism further includes two door panels, the bracket is located between the two door panels, and each of the door panels is connected to one of the second frame bodies.

12. The hinge mechanism according to claim 11, wherein, Further included: A hinge cover is provided to cover the hinge unit.

13. An electronic device, characterized in that, Including: A first housing; A second housing; And The hinge mechanism according to any one of claims 1 to 12, the first housing and the second housing are rotationally connected through the hinge mechanism.

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