WO2019174224A1 - Hinge device, housing, and electronic device - Google Patents

Abstract

Disclosed is an electronic device, comprising a flexible screen (30) and a housing (20), wherein the housing comprises a first frame (21), a second frame (23), and a hinge device (25); the hinge device (25) is connected between the first frame (21) and the second frame (23) and is used for supporting the flexible screen (30), which is arranged on the housing (20); and the hinge device (25) comprises a hinge body (250) and a positioning mechanism (27) provided on the hinge body (250), the positioning mechanism (27) being used for maintaining the attitude of the hinge device (25). Further disclosed are a housing and a hinge device of the electronic device.

Description

Hinge device, housing and electronic device Technical field

The present application relates to the field of flexible screen support, and more particularly to a hinge device for supporting a flexible screen, a housing provided with the hinge device, and an electronic device provided with the housing.

Background technique

With the development of flexible screens, consumers are increasingly diversified and personalized about the display modes and display effects of display devices. Compared with the traditional display device, the flexible display has the advantages of being bendable, transparent, curved, flexible and stretchable, and is widely favored by consumers. The electronic device of the existing folding display screen generally supports and bends the flexible screen through a hinge. The hinge generally consists of a number of link connections. However, the links are movable connections, and the hinges are not able to maintain a specific shape and are easily deformed, which is inconvenient to use.

Summary of the invention

The present application provides a hinge device capable of maintaining a configuration, a housing provided with the hinge device, and an electronic device provided with the housing.

A hinge device provided between the first frame and the second frame of the housing is configured to support a flexible screen disposed on the housing, the hinge device includes a hinge body and is disposed on the hinge A positioning mechanism on the main body for maintaining the shape of the hinge device.

The present application also provides a housing including a first frame body, a second frame body and a hinge device, wherein the hinge device is connected between the first frame body and the second frame body, and the hinge device is used for the hinge device And a flexible screen disposed on the housing, the hinge device includes a hinge body and a positioning mechanism disposed on the hinge body, wherein the positioning mechanism is configured to maintain the shape of the hinge device.

The present application also provides an electronic device including a flexible screen and a housing, the housing including a first frame, a second frame, and a hinge device, the hinge device being coupled to the first frame and the first Between the two frames, for supporting a flexible screen disposed on the housing, the hinge device includes a hinge body and a positioning mechanism disposed on the hinge body, the positioning mechanism is configured to maintain the shape of the hinge device .

The hinge device of the electronic device of the present application includes a hinge body and a positioning mechanism disposed on the hinge body, and the positioning mechanism is configured to position the hinge device in a bent state or an unfolded state. Therefore, the positioning mechanism can position the hinge device to maintain a bent state or a stretched state, thereby enabling the electronic device to automatically maintain an unfolded state or a bent state.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a schematic perspective view of an electronic device in an embodiment of the present application.

FIG. 2 is a perspective view showing another perspective view of the electronic device of FIG. 1. FIG.

3 is a perspective exploded view of the electronic device of FIG. 1.

4 is a perspective exploded view of the electronic device of FIG. 2.

FIG. 5 is a perspective exploded view of the hinge device of the electronic device of FIG. 4. FIG.

6 is a perspective exploded view of another perspective view of the hinge device of the electronic device of FIG. 5.

Figure 7 is an enlarged view of a portion VII of Figure 6.

Figure 8 is an enlarged view of a portion VIII of Figure 6.

Figure 9 is an enlarged view of one of the positioning members of Figure 7.

Figure 10 is a partially enlarged schematic view of the hinge device of Figure 5.

Figure 11 is a cross-sectional view taken along line XI-XI of Figure 1.

Figure 12 is a cross-sectional view taken along line XII-XII of Figure 1.

Figure 13 is an enlarged view of the portion along line XIII of Figure 12.

Figure 14 is a cross-sectional view taken along line XIV-XIV of Figure 1.

Fig. 15 is a perspective view showing the bent state of the electronic device of Fig. 1.

Figure 16 is a cross-sectional view taken along line XVI-XVI of Figure 15.

Figure 17 is a cross-sectional view taken along line XVII-XVII of Figure 15.

Figure 18 is a cross-sectional view taken along line XVIII-XVIII of Figure 15.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In the description of the embodiments of the present invention, it is to be understood that the orientation or positional relationship of the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, only for convenience. The invention and the simplifications of the invention are not to be construed as limiting or limiting the invention.

1 is a schematic perspective view of an electronic device according to an embodiment of the present invention; FIG. 2 is a perspective view of the electronic device of FIG. 1; FIG. FIG. 4 is a perspective exploded view of the electronic device of FIG. 2; FIG. The electronic device 100 in one embodiment of the present application includes a housing 20 and a flexible screen 30 disposed on the housing 20. The housing 20 includes a first frame 21 , a second frame 23 , and a hinge device 25 connected between the first frame 21 and the second frame 23 . The flexible screen 30 is disposed on the first frame 21, the second frame 23, and the hinge device 25. The flexible screen 30 is provided with a bendable region 31 corresponding to the hinge device 25, and two non-bend regions 33 connected to opposite sides of the bendable region 31. The hinge device 25 is configured to be supported on the flexible screen 30. The hinge device 25 includes a hinge body 250. The hinge body 250 is located between the first frame 21 and the second frame 23. One side of the hinge body 250 is slidably coupled to the first frame body 21, and the other opposite side of the hinge body 250 is coupled to the second frame body 23. At least one elastic member 26 is disposed between the first frame body 21 and the hinge body 250, and at least one of the elastic members 26 pushes the first frame body 21 away from the hinge body 250 to make the flexible screen 30 The area corresponding to the hinge main body 250 is always kept in an unfolded state, so that the flexible screen 30 can be prevented from being separated from the hinge main body 250 and arched. Since the first frame body 21 is slidably coupled with the hinge body 250, and the elastic member 26 is disposed between the first frame body 21 and the hinge body 250, the hinge body 250 can be compensated for bending perpendicular thereto. The tolerance of the direction of the shaft, i.e., the length of the hinge body 250 extending in a direction perpendicular to its bending axis, can be automatically adjusted to avoid damage to the flexible screen.

It should be understood that the present invention is not limited to the hinge being a virtual axis scheme, but may be other various schemes such as an active compensation scheme, a passive compensation scheme, and the like.

The bending axis described herein is not limited to a solid axis, but may also be a non-solid axis, ie, a virtual axis, as long as the hinge body 250 can be bent around the axis.

In this embodiment, the bending axis of the hinge body 250 is a virtual axis.

In this embodiment, the electronic device 100 is a mobile phone. It will be appreciated that in other embodiments, electronic device 100 may be, but is not limited to, a PDA of a radiotelephone, pager, web browser, memo pad, calendar, and/or global positioning system (GPS) receiver.

One side of the hinge body 250 of the hinge device 25 of the electronic device 100 of the present application is slidably coupled to the first frame body 21, and the opposite side of the hinge body 250 is coupled to the second frame body 23, and The elastic member 26 is elastically held between the first frame body 21 and the hinge main body 250. Therefore, the cumulative tolerance of the overall length of the hinge body 250 in the direction perpendicular to its bending axis can be compensated by the sliding of one side of the hinge body 250 with respect to the first frame 21, that is, sliding the first frame The body 21 can absorb the cumulative tolerance of the overall length; in addition, the elastic member 26 always pushes the housing 20 away from the hinge body 250, so that the flexible screen 30 on the housing 20 remains unfolded. Thereby, the flexible screen 30 can be prevented from being separated from the hinge main body 250 and arched, thereby avoiding damage to the flexible screen.

In this embodiment, the side of the hinge main body 250 parallel to the bending axis thereof is slidably coupled to the first frame body 21 by the elastic member 26, and the hinge main body 250 is parallel to the other side of the bending axis thereof. The second frame body 23 is fixedly coupled, that is, the hinge body 250 is slidable relative to the first frame body 21.

In other embodiments, the side of the hinge body 250 parallel to its bending axis is slidably coupled to the second frame 23 by the elastic member 26, the hinge body 250 being parallel to the other of its bending axes. The side is slidably coupled to the first frame 21 by the elastic member 26, that is, the hinge body 250 is slidable relative to the first frame 21 and the second frame 23.

The first frame 21 is disposed on a side adjacent to the hinge device 25 with a first connecting portion 212 for connecting one side of the hinge body 250 parallel to the bending axis. Specifically, the first connecting portion 212 includes a connecting strip 2121 protruding from opposite ends of the first frame 21 adjacent to the hinge device 25, and connecting the two connecting strips A guide slide 2125 between 2121. Each connecting strip 2121 extends in a direction perpendicular to a bending axis of the hinge body 250, the guiding slide 2125 being adjacent to a front surface of the first frame 21, thereby connecting the guiding slide 2125 to the two A receiving groove 2126 is defined between the strip 2121 and the first frame 21 . Each of the connecting strips 2121 faces a side of the receiving slot 2126 and defines a sliding slot 2122 along the length of the connecting strip 2121. The sliding slot 2122 communicates with the receiving slot 2126. At least one receiving groove 2127 is defined in the rear surface of the sliding plate 2125 along the extending direction of the sliding slot 2122. The receiving groove 2127 communicates with the receiving groove 2126. A positioning post 214 corresponding to the receiving groove 2127 is protruded from a side surface of the first frame body 21 facing the receiving groove 2126. A mounting groove 215 for mounting the flexible screen 30 is disposed on a front surface of the first frame 21 .

In the embodiment, the back surface of the guide plate 2125 is provided with two storage grooves 2127 which are parallel and spaced apart. The first frame body 21 is convexly disposed on the side surface of the receiving groove 2126. Two positioning posts 214 of 2127.

The second frame 23 is disposed on a side adjacent to the hinge device 25 with a second connecting portion 232 for connecting the hinge body 250 to the other side of the bending axis . Specifically, the second connecting portion 232 includes a connecting strip 2321 protruding from opposite ends of the second frame 23 adjacent to the hinge device 25, and connecting the two connecting strips A connecting plate 2325 between 2321. Each connecting strip 2321 extends in a direction perpendicular to a bending axis of the hinge body 250, the connecting plate 2325 being adjacent to a front surface of the second frame 23, thereby connecting the connecting plate 2325 to the two A connecting slot 2326 is defined between the strip 2321 and the second frame 23. A plurality of connecting holes 2327 are defined in the connecting plate 2325. A mounting slot 235 is defined in the front surface of the second frame 23 for mounting the flexible screen 30. The front surface in the present application refers to the same surface as the light-emitting surface of the flexible screen 30, and the back surface refers to a surface opposite to the light-emitting surface of the flexible screen 30.

5 is a perspective exploded view of the hinge device of the electronic device of FIG. 4; FIG. 6 is a perspective exploded view of another embodiment of the hinge device of the electronic device of FIG. 5; It is an enlarged view of a portion VII in Fig. 6; and Fig. 8 is an enlarged view of a portion VIII in Fig. 6. The hinge device 25 further includes two link end cap mechanisms 255, two elastic members 26 and a positioning mechanism 27, and the two link end cap mechanisms 255 are respectively disposed at opposite ends of the hinge body 250. Two elastic members 26 are disposed between the hinge main body 250 and the first frame body 21, and the positioning mechanism 27 is configured to maintain the shape of the hinge device 100, that is, the positioning mechanism 27 is used for The hinge device 100 is kept in a bent state or an unfolded state, which is convenient for the user to use. The positioning mechanism 27 includes a plurality of elastic positioning members 28 and a plurality of magnetic members 29.

In this embodiment, each of the elastic members 26 is a spring.

In other embodiments, the elastic member 26 may be an elastic rubber or an elastic plastic or the like.

The hinge body 250 includes a plurality of links that are hingedly coupled to each other, and the front faces of the links are used to support the flexible screen 30. Specifically, the plurality of links include at least one first link 251, at least one second link 252, a third link 253, and a fourth link 254. One side of the third link 253 is slidably coupled to the first frame 21, and one side of the fourth link 254 is coupled to the second frame 23. The first link 251 is disposed between the third link 253 and the fourth link 254, and the second link 252 is disposed between the third link 253 and the first link 251 or on the fourth link 254 and the first link Between the links 251, adjacent links are hinged to each other. In one embodiment, at least one of the second links 252 is hinged to one side of the first link 251, and the third link 253 is hinged to the second link 252 or hinged to the first One link 251 is away from a side of the second link 252, the fourth link 253 is hinged to the second link 252 or hinged to the first link 251 away from the second link 252 One side.

In this embodiment, the hinge body 250 includes one first link 251, two second links 252, one third link 253 and one fourth link 254, two The second links 252 are respectively hinged on opposite sides of the first link 251, and the third link 253 is hinged to a side of the second link 252 away from the first link 252. The fourth link 254 is hinged to a side of the other second link 252 that is away from the first link 252.

Specifically, the first link 251 includes a body 2510 along a bending axis parallel to the hinge body 250. The strip 2510 includes a circular arc-shaped front surface 2511, a back surface, and opposite side surfaces 2512. And two opposite end faces 2513. The front surface 2511 and the two side surfaces 2512 are connected by two opposite first sliding surfaces 2514. Each of the first guiding surfaces 2514 is a circular arc surface, and the circular arc faces the strip 2510. The two first guiding surfaces 2514 are symmetrical along the center line of the front surface 2511. A receiving hole 2515 is defined in each of the two end faces 2513 of each of the first guiding surfaces 2514. Each of the end faces 2513 is respectively formed with a circular arc-shaped limiting groove 2517 adjacent to the two first guiding sliding surfaces 2514, and the arc of each limiting slot 2517 is parallel to the adjacent first guiding sliding surface. The arc of 2514, that is, each of the limiting slots 2517 coincides with the center of the arc of the adjacent first guiding surface 2514. A connecting hole 2518 is defined in each of the end faces 2513. The connecting hole 2518 is located between the two limiting slots 2517. A fixing slot 2501 is defined in each of the two opposite sides of the first link 251. Specifically, a fixing slot 2501 is defined in the intersection of the back surface of the first link 251 and the two side surfaces 2512. The groove 2501 extends along the length direction of the first link 251. Specifically, each fixing groove 2501 is located at an intersection of a middle portion of the back surface of the first link 251 and the side surface 2512.

Each second link 252 includes a body 2520 extending parallel to a bending axis of the hinge body 250, the strip 2520 including a circular arc-shaped front surface 2521, a back surface, opposite side surfaces 2522, and a relative The two end faces 2523. A second sliding surface 2524 having a circular arc shape is disposed between the front surface 2521 and one of the side surfaces 2522. The second guiding sliding surface 2524 is recessed into the strip body 2520. A receiving hole 2525 is defined in the second guiding surface 2524 adjacent to the two end faces 2523. A guiding strip 2526 is protruded outwardly from the intersection of the front surface 2521 and the other side surface 2522. The guiding strip 2526 extends along the length of the strip 2520, and the guiding strip 2526 faces away from the front surface. An arc surface 2527 is disposed on one side of the 2521, and the arc surface 2527 is slidably attached to the first guide surface 2514, that is, the curvature of the circular arc surface 2527 and the first sliding surface The curvature of the 2514 is the same. Each of the end faces 2523 is provided with a circular arc-shaped limiting groove 2528 adjacent to the second guiding sliding surface 2524. The circular arc of the limiting groove 2528 is parallel to the circular arc of the second guiding sliding surface 2524, that is, The limiting groove 2528 coincides with the arc center of the second guiding surface 2524. A connecting hole 2529 is defined in each end surface 2523. Specifically, the connecting hole 2529 is located at a middle portion of the end surface 2523. A fixing groove 2503 is defined in a side of each of the second links 252 facing the first link 251. Specifically, the intersection of the back surface of each of the second links 252 and the two side faces 2522 is respectively opened. A fixing groove 2503, each fixing groove 2503 extends along a length direction of the second link 252. Specifically, each fixing groove 2503 is located at an intersection of a middle portion of the back surface of the second link 252 and the side surface 2522. .

5 and FIG. 13, FIG. 12 is a cross-sectional view taken along line XII-XII of FIG. 1, and FIG. 13 is an enlarged view of the portion along line XIII of FIG. A first positioning hole 2502 and a second positioning hole 2504 are respectively spaced apart from each other by the arc surface 2527 of each of the second links 252, and the first positioning hole 2502 and the The second positioning hole 2054 corresponds to the receiving hole 2515 of the first link 251. The first positioning hole 2502 and the second positioning hole 2504 are located on the same circular arc line of the circular arc surface 2527 , and the first positioning hole 2502 is away from the strip body 2520 , and the second positioning hole 2504 Adjacent to the strip 2520.

The third link 253 includes a body 2530 extending parallel to a bending axis of the hinge body 250, the strip 2530 including a circular arc-shaped front surface 2531, a back surface, opposite side surfaces 2532, and a relative The two end faces 2533. A guide strip 2534 protrudes outwardly from the intersection of the front surface 2531 and one of the side surfaces 2532. The guide strip 2534 extends along the length of the strip 2530, and the guide strip 2534 faces away from the front surface. An arc surface 2535 is disposed on one side of the 2531, and the circular arc surface 2535 can be attached to the second sliding surface 2524, that is, the circular arc of the circular arc surface 2535 and the second sliding surface 2524 The arc is the same. A connecting hole 2536 is defined in each end surface 2533. Specifically, the connecting hole 2536 is located at a middle portion of the end surface 2533. A mounting portion is disposed on the side surface 2532 of the strip 2530 facing away from the guiding strip 2534 , and the mounting portion is slidably coupled to the first connecting portion 212 of the first frame 21 . The mounting portion includes a sliding plate 2537 protruding from the side surface 2532 and at least one protrusion 2538 protruding from the sliding plate 2537. The opposite ends of the sliding plate 2537 are slidably inserted into the sliding slots 2122 of the two connecting strips 2121 of the first frame body 21, and the at least one protruding block 2538 corresponds to the first frame. Positioning post 214 of 21. A fixing groove 2505 is defined at an intersection of the back surface of the third link 253 and the side surface 2532 of the guide strip 2534. The fixing groove 2505 extends along the longitudinal direction of the third link 253. Specifically, the fixing groove 2505 is located at an intersection of a middle portion of the back surface of the third link 253 and the side surface 2532.

The first locating hole 2502 and the second locating hole 2504 are respectively spaced apart from each other by the arcuate surface 2535 of the third link 253. The first locating hole 2502 and the The second positioning hole 2054 corresponds to the receiving hole 2525 of the second link 252. The first positioning hole 2502 and the second positioning hole 2504 are located on the same circular arc line of the circular arc surface 2535 , and the first positioning hole 2502 is away from the strip body 2530 , and the second positioning hole 2504 Adjacent to the strip 2530.

In the embodiment, the two sliding blocks 2537 are provided with two spaced apart protrusions 2538. The two of the protruding blocks 2538 correspond to the two positioning posts 214 on the first frame body 21.

The fourth link 254 includes a body 2540 extending parallel to a bending axis of the hinge body 250, the strip 2540 including a circular arc-shaped front surface 2541, a back surface, opposite side surfaces 2542, and a relative The two end faces 2543. A guide strip 2544 is protruded outwardly from the front surface 2541 and one of the side surfaces 2542. The guide strip 2544 extends along the length of the strip 2540, and the guide strip 2544 faces away from the front surface 2541. One side of the arc surface 2545 is disposed, and the circular arc surface 2545 can be attached to the second sliding surface 2524, that is, the circular arc of the circular arc surface 2545 and the second sliding surface 2524 The arc is the same. A connecting hole 2546 is defined in each end surface 2543. Specifically, the connecting hole 2546 is located at a middle portion of the end surface 2543. A mounting portion is disposed on a side surface 2542 of the strip body 2540 facing away from the guide strip 2544, and the mounting portion is coupled to the second connecting portion 232 of the second frame body 23. The mounting portion includes a mounting plate 2547 protruding from the side surface 2542. The mounting plate 2547 is provided with a plurality of connecting holes 2548. A fixing groove 2506 is defined at an intersection of a rear surface of the fourth link 254 and a side surface 2542 provided with the guide bar 2544, and the fixing groove 2506 extends along a length direction of the fourth link 254. Specifically, the fixing groove 2506 is located at an intersection of a middle portion of the back surface of the fourth link 254 and the side surface 2542.

The first locating hole 2502 and the second locating hole 2504 are respectively spaced apart from each other by the arcuate surface 2545 of the fourth link 254, and the first locating hole 2502 and the The second positioning hole 2054 corresponds to the receiving hole 2525 of the second link 252. The first positioning hole 2502 and the second positioning hole 2504 are located on the same circular arc line of the circular arc surface 2545. The first positioning hole 2502 is away from the strip body 2540, and the second positioning hole 2504 Adjacent to the strip 2540.

Each link end cap mechanism 255 includes at least one first link end cap member 256, at least one second link end cap member 257, and two third link end cap members 258. At least one of the first link end cap members 256 is disposed on one of the end faces 2513 of the at least one first link 251; at least one of the second link end cap members 257 is disposed on at least one of the second links One end surface 2523 of the knuckle 252 is rotatably connected to the first link end cover member 256; the two third link end cover members 258 are respectively disposed on one of the end faces 2533 of the third link 253 One end surface 2543 of the fourth link 254, wherein a third link end cover 258 is rotatably coupled to the first link end cover 256 or the second link end cover 257, and the other The third link end cap 258 is rotatably coupled to the first link end cover 256 or the second link end cover 257.

As shown in FIG. 7 and FIG. 8 , in the embodiment, the hinge device 25 includes two link end cap mechanisms 255 , and each link end cap mechanism 255 includes one first link end cover member 256 . Two of the second link end cap members 257, and two third link end cap members 258. The first link end cover member 256 can be fixed to the end surface 2513 of the first link 251, and the two second link end cover members 257 can be respectively fixed to the two second link 252. The end surface 2523 of the end, the two third link end caps 258 can be respectively fixed to the end surface 2533 of the third link 253 and the end surface 2543 of the fourth link 254. Adjacent link end caps are hinged to each other.

Specifically, the first link end cover member 256 includes a cover plate 2560, and the shape and size of the cover plate 2560 facing the end surface of the first link 251 and the shape of the end surface 2513 of the first link 251 And the same size. The cover plate 2560 includes a front surface 2561 of a circular arc shape, a back surface, two opposite side surfaces 2562, and two opposite end surfaces 2563. The front surface 2561 and the opposite two side surfaces 2562 are connected by two opposite sliding surfaces 2564. Each guiding surface 2564 is a circular arc surface, and the circular arc surface corresponds to the first link 251. The arc of one guide surface 2514 is the same. The two guide surfaces 2564 are symmetrical along the center line of the front surface 2561. The cover plate 2560 faces the end surface 2563 of the first link 251 adjacent to the two guide sliding surfaces 2564 respectively, and has a circular arc-shaped guide groove 2567, and each arc of the guide groove 2567 is adjacent to the arc. The arcs of the proximal guide surfaces 2564 are parallel, that is, each of the guide grooves 2567 coincides with the center of the arc of the adjacent guide surfaces 2564. Each of the guide chutes 2567 is passed through the adjacent guide surface 2564. The cover plate 2560 is provided with a counterbore 2568 opposite to the end surface 2563 of the first link 251. The counterbore 2568 passes through the cover plate 2560. Specifically, the counterbore 2568 is located at two Between the guide slots 2567.

Each of the second link end cap members 257 includes a cover plate 2570, the shape and size of the cover plate 2570 facing the end face of the second link 252 and the shape of the end face 2523 of the second link 252 and The size is similar. The cover plate 2570 includes a front surface 2571 of a circular arc shape, a back surface, two opposite side surfaces 2572, and two opposite end surfaces 2573. An intersection of the front surface 2571 and one of the side surfaces 2572 is provided with a circular arc-shaped guide surface 2574, and the arc of the guide surface 2574 and the corresponding second guide surface 2524 of the second link 252 The arc is the same. A guide strip 2576 is outwardly disposed at an intersection of the front surface 2571 and the other side surface 2572. The side of the guide strip 2576 facing away from the front surface 2571 is provided with a circular arc surface 2577, and the circular arc surface 2577 can The arc of the arcuate surface 2577 is the same as the arc of the guide surface 2564. An L-shaped limiting block 2575 is protruded outwardly from the circular arc surface 2577, and the limiting block 2575 includes a connecting portion protruding from the circular arc surface 2577, and the end portion of the connecting portion is oriented toward the end The limiting portion extending from one side of the second link 252 is slidably received in the guiding slot 2567 of the first link end cover 256, and the limiting portion is slidably received In the limiting slot 2517 of the first link 251. The cover plate 2570 faces the end surface 2573 of the second link 252 adjacent to the circular arc surface 2574 and is provided with a circular arc-shaped guide groove 2578. The arc of the guide groove 2578 and the guide roller The arc of the surface 2574 is parallel, that is, the guide groove 2578 coincides with the center of the arc of the guide surface 2574, and the guide groove 2578 passes through the guide surface 2574. The cover plate 2570 is provided with a counterbore 2579 opposite to the end surface 2573 of the second link 252, and the counterbore 2579 passes through the cover plate 2570.

Each of the third link end cap members 258 includes a cover plate 2580. The cover plate 2580 includes a circular front surface 2581, a back surface, opposite side surfaces 2582, and opposite end surfaces 2583. A guiding strip 2586 is protruded outwardly from the intersection of the front surface 2581 and one of the side surfaces 2582. The side of the guiding strip 2586 facing away from the front surface 2581 is provided with a circular arc surface 2587, and the circular arc surface 2587 can It is attached to the guide surface 2574 of the second link end cover 257, that is, the arc of the circular arc surface 2587 is the same as the arc of the guide surface 2574. An L-shaped limiting block 2585 is outwardly convexly disposed on the circular arc surface 2587, and the limiting block 2585 includes a connecting portion protruding from the circular arc surface 2587, and a direction from the end of the connecting portion a limiting portion extending from the hinge main body 250, wherein the connecting portion is slidably received in the guiding slot 2578 of the second link end cover member 257, and the limiting portion is slidably received in the first portion The two links 252 are within the limiting slot 2528. A cover hole 2589 is defined in the end surface 2583 of the cover plate 2580 facing away from the hinge body 250, and the counterbore hole 2589 passes through the cover plate 2580.

Please refer to FIG. 9. FIG. 9 is an enlarged view of the positioning member of FIG. 7. The positioning members 28 are respectively disposed between the links of the hinge main body 250, that is, a positioning member 28 is disposed between each adjacent two of the links, and the positioning members 28 are used for positioning the hinge device. Bent state or expanded state. Specifically, the positioning members 28 are slidably received in the receiving holes 2515 of the first link 251 and the receiving holes 2525 of the second link 252. The positioning member 28 has elasticity. When the positioning member 28 is pressed, it is retracted into the receiving holes 2515, 2525. When the pressing of the positioning member 28 is released, the positioning member 28 is elastically reset. The positioning member 28 includes a positioning rod 282 slidably received in the receiving hole 2515, 2525, and an elastic member 284 sleeved on the positioning rod 282. The elastic member 284 is elastically abutted between the positioning rod 282 and the back surface of the corresponding receiving hole 2515, 2525. The elastic member 284 forces the positioning rod 282 to move outward to protrude from the corresponding receiving hole 2515. 2525. One end of the positioning rod 282 away from the elastic member 284 is provided with a spherical convex hull 285. The elastic member 284 forces the positioning rod 282 to move outward to extend the convex hull 285 to the corresponding receiving hole 2515, 2525. . When the convex hulls 285 of the positioning members 28 are respectively engaged with the corresponding first positioning holes 2502, the area of the hinge main body 250 is always kept in an unfolded state, so that the hinge main body 250 is automatically maintained in an unfolded state; when the positioning member 28 is convex When the bag 285 is respectively engaged with the corresponding second positioning hole 2504, the area of the hinge main body 250 is always kept in a bent state, so that the hinge main body 250 is automatically maintained in a bent state.

In this embodiment, the elastic member 284 is a spring.

In other embodiments, each of the positioning members 28 is an elastic positioning bead. The elastic positioning beads can be respectively engaged in the corresponding receiving holes 2515 and 2525, and the beads of the elastic positioning bead protrude from the corresponding receiving holes 2515 and 2525.

In other embodiments, each of the first guiding surfaces 2514 of the first link 251 is respectively provided with a first positioning hole and a second positioning hole spaced apart from each other, the first positioning hole and the second positioning hole. The positioning hole is located on the same circular arc line of the first guiding surface 2514, the first positioning hole is adjacent to a side of the front surface 2511, and the second positioning hole is away from a side of the front surface 2511. An elastic positioning member 28 is disposed on the circular arc surface 2527 of each second link 252. When the hinge main body 250 is in an unfolded state, the positioning member 28 is positioned in the first positioning hole when the When the hinge body 250 is in a bent state, the positioning member 28 is positioned in the second positioning hole.

In other embodiments, the second guiding surface 2524 of each of the second links 252 is respectively provided with a first positioning hole and a second positioning hole spaced apart from each other, the first positioning hole and the second positioning hole. Located on the same circular arc line of the second sliding surface 2524, the first positioning hole is adjacent to one side of the front surface 2521, and the second positioning hole is away from a side of the front surface 2521. An arcuate surface 2535 of the third link 253 or a circular arc surface 2545 of the fourth link 254 is provided with an elastic positioning member 28, and when the hinge main body 250 is in an unfolded state, the positioning member 28 is positioned at the In the first positioning hole, when the hinge main body 250 is in a bent state, the positioning member 28 is positioned in the second positioning hole.

A plurality of said magnetic members 29 may be a plurality of pairs of magnetic strips that are mutually adsorbable. The magnetic members 29 are respectively disposed on the plurality of links of the hinge main body 250 such that a pair of the magnetic members 29 are disposed between each adjacent two of the links. Specifically, the magnetic members 29 can be respectively fixed in the fixing grooves 2501, 2503, 2505, 2506. When the hinge device 100 is bent, the sides of the links are used to be magnetically fixed to the sides of the adjacent links, that is, the links of the hinge body 250 are in a bent state, and the hinge body 250 is bent. The magnetic members 29 between each adjacent two of the links are attracted to each other to ensure that the hinge device 100 automatically maintains the bent state.

In this embodiment, a plurality of the magnetic members 29 are four pairs of magnetic strips that can adsorb each other.

In other embodiments, the plurality of magnetic members 29 are a plurality of pairs of magnet strips and iron strips that are mutually adsorbable, and each pair of the magnet strips and the iron strips are respectively disposed between two adjacent ones of the links.

As shown in FIG. 4, in the embodiment, a support piece 35 is attached to the back surface of the flexible screen 30, and the support piece 35 covers the bendable area 31 of the flexible screen 30. The support sheet 35 may be a thin metal sheet such as a copper foil, a liquid metal sheet, a memory alloy sheet, a plastic sheet or other conforming material. In this embodiment, the support piece 35 is a liquid metal piece.

The term "liquid metal" as used in the present application refers to heating the alloy to a molten state and then cooling at an ultra-fast cooling rate, so that the crystal lattice of the alloy is less than ordered and crystallized, and is solidified because it is amorphous, like glass, so it is called It is an amorphous alloy, a liquid metal or a metallic glass. The characteristics of liquid metal are long-range disorder (short-range order), metastable state, a certain degree of physical property isotropic, no exact melting point, glass transition temperature point, etc., with solid, metal, glass characteristics, can be Under certain conditions, it has high strength, high hardness, plasticity, heat conduction and wear resistance. That is to say, the liquid metal referred to in the present invention is substantially solid at normal temperature, except that some of its characteristics are close to liquid, so it is called liquid metal. The liquid metal may be an alloy material of one or more materials of copper, titanium, iron, zirconium, silver, nickel, gallium, gold, lanthanum, cadmium, zinc, indium, silicon, etc., and the specific metal is preferably lower. Other mechanical properties such as modulus of elasticity, hardness, and elongation.

The reason why the liquid metal piece is selected as the support piece 35 in this embodiment is that the liquid metal piece has better wear resistance. In one aspect, the support piece 35 can effectively resist the friction generated by the hinge device 25, and the wear is less likely to occur; on the other hand, the elastic modulus of the liquid metal piece is low, and the electronic device 100 passes the When the hinge device 25 is bent, the support piece 35 can follow the flexible screen 30 to be synchronized or approximately synchronously stretched, thereby preventing the flexible screen 30 from being damaged due to a large difference in the stretching amplitude when bending. The liquid metal may be selected from copper, titanium, iron, zirconium, silver, nickel, gallium, gold, sulfonium, cadmium, zinc, indium, silicon, etc. liquid metals, and For existing materials with lower elastic modulus, such as silica gel, foam, plastic, etc., the liquid metal has higher strength and better wear resistance, and can effectively support the flexible screen.

Please refer to FIG. 5 to FIG. 14 together. When assembling, the hinge body 250 is assembled first, that is, a plurality of the positioning members 28 are respectively mounted on the receiving holes 2515 of the first link 251 and the receiving holes of the second link 252. In the 2525, each positioning member 28 can slide along the corresponding receiving holes 2515, 2525, and the convex bag 285 protrudes from the corresponding receiving holes 2515, 2525. At this time, the second link 252 is rotatable relative to the first link 251 along the first axis L1 (shown in FIG. 11), the first axis L1 is the axis of the virtual axis, and the first axis L1 is located at the The inside of the flexible screen 30, specifically, the first axis L1 is located at the back of the flexible screen 30 and is close to the flexible screen 30. The arcuate surface 2527 of each of the second links 252 is attached to the first sliding surface 2514 of the first link 251, so that the convex hulls 285 of the positioning members 28 on the first link 251 are respectively The first positioning hole 2502 of the corresponding second link 252 is engaged; at this time, the third link 253 is rotatable relative to the corresponding second link 252 along the second axis L2 (shown in FIG. 11). The second axis L2 is an axis of the virtual axis, and the two axes L2 are located inside the flexible screen 30. Specifically, the first axis L2 is located at the back of the flexible screen 30 and is adjacent to the flexible screen 30. The circular arc surface 2535 of the third link 253 is attached to the second sliding surface 2524 of one of the second links 252, so that the convex hull 285 of the positioning member 28 on the second link 252 is engaged. The first positioning hole 2502 of the third link 253; the arc surface 2545 of the fourth link 254 is further attached to the second sliding surface 2524 of the other second link 252, so that the second chain The convex hull 285 of the positioning member 28 on the segment 252 is snapped into the first positioning hole 2502 of the corresponding fourth link 254; at this time, the fourth link 254 can be along the second axis with respect to the corresponding second link 252. L2 is rotated, the second axis L2 is an axis of a virtual axis, and the two axes L2 are located inside the flexible screen 30. Specifically, the first axis L2 is located on the back of the flexible screen 30 and close to the flexible screen. 30.

Reassembling each link end cap mechanism 255, that is, sliding the arcuate faces 2577 of the two second link end cap members 257 to the two of the first link end cap members 256 The limiting block 2575 of each second link end cover member 257 is received in the guiding slot 2567 of the first link end cover member 256, and each limiting block 2575 is disposed on the guiding surface 2564. The connecting portion is received in the guiding slot 2567, and the limiting portion of each limiting block 2575 protrudes from the end surface 2563 of the first link end cover member 256; the arc of the two third link end cover members 258 The surface 2587 is slidably attached to the sliding surfaces 2574 of the two second end caps 257, so that the limiting block 2585 of each third end cap 258 is received in the corresponding second chain. The guide groove 2578 of the end cover member 257, the connecting portion of each limiting block 2585 is received in the guiding slot 2578, and the limiting portion of each limiting block 2585 protrudes from the corresponding second link end cover member 257. End face 2573. The two end link end mechanisms 255 are respectively connected to opposite ends of the hinge main body 250, that is, the limiting portion of the limiting block 2575 of each second link end cover member 257 is slidably inserted into the The corresponding limiting slot 2517 of the first link 251 is slidably inserted into the corresponding limiting slot of the corresponding second link 252. 2528, each first link end cover member 256 is attached to the end surface 2513 of the first link 251 and the counterbore 2568 of the first link end cover member 256 faces the connection hole 2518; The second link end cover member 257 is attached to the end surface 2523 of the second link 252 and the counterbore 2579 of the second link end cover member 257 faces the connection hole 2529; wherein the two third link end covers The pieces 258 are respectively attached to the end surface 2533 of the third link 253, and the counterbore 2589 of each third link end cover 258 faces the connecting hole 2536, and the other two of the third link end caps 258 Attached to the end surface 2543 of the fourth link 254, respectively, and the counterbore 2589 of each third link end cap 258 is respectively opposite to the corresponding connecting hole 2546; a plurality of fasteners respectively pass through the counterbore 25 68, 2579, 2589 are locked in the corresponding connecting holes 2518, 2529, 2536, 2546, so that the first link 251, the second link 252, the third link 253 and the first The four link segments 254 are rotatably coupled together, and the first link end cover member 256 of each link end cap mechanism 255, the two second link end cover members 257, and the two pairs of third link portions The end cap member 258 is rotatably coupled to the body. At this time, the convex hulls 285 of the positioning members 28 on the two sides of the first link 251 are respectively engaged in the corresponding first positioning holes 2502 of the two second links 252, wherein a second link 252 The convex hull 285 of the upper positioning member 28 is engaged in the first positioning hole 2502 of the third link 253, and the convex hull 285 of the positioning member 28 on the other second link 252 is engaged with the first of the fourth link 254. Positioning in the hole 2502, so that the first link 251, the two second links 252, the third link 253 and the fourth link 254 are connected in a horizontal state, and each second link end The limiting portion of the limiting block 2575 on the cover member 257 abuts against the end of the corresponding limiting slot 2517 away from the front surface 2511, and the limiting portion of the limiting block 2585 on each third link end cover member 258 is abutted. The corresponding limiting slot 2528 is away from the end of the front surface 2521, so that the first link end cover member 256, the second link end cover member 257 and the third link end cover member 258 are connected in a horizontal state.

A plurality of the magnetic members 29 are respectively fixed to the fixing groove 2501 of the first link 251, the fixing groove 2503 of the second link 252, the fixing groove 2505 of the third link 253, and the fourth link 254. The fixing groove 2506 is inside. A pair of mutually adsorbing magnetic members 29 are formed between the first link 251 and each of the second links 252, and a pair of mutually adsorbing magnetic members 29 are formed between the second link 252 and the third link 253. A pair of mutually adsorbed magnetic members 29 are formed between the other second link 252 and the fourth link 254.

In this embodiment, each of the magnetic members 29 is fixed in the corresponding fixing groove by means of glue connection.

In other embodiments, the magnetic member may be fixed in the corresponding fixing groove by snapping or screwing.

Inserting the installed hinge device 25 between the first frame 21 and the second frame 23; inserting the opposite ends of the sliding plate 2537 of the third link 253 of the hinge device 25 into the opposite The two elastic strips 26 are respectively received in the two receiving grooves 2127, so that one end of each elastic member 26 is fixed to the corresponding positioning post 214. The other end is connected to the corresponding bump 2538. At this time, the sliding plate 2537 is slidably received in the receiving groove 2126 along the sliding slot 2122. The mounting plate 2547 of the fourth link 254 is received in the connecting groove 2326 of the second frame 23, and a plurality of fasteners pass through the mounting plate 2547 and are respectively locked in the connecting holes 2327 to fix the mounting plate 2547. In the second frame. The back surfaces of the two non-bending regions 33 of the flexible screen 30 are respectively attached to the mounting grooves 215 of the first frame 21 and the mounting grooves 235 of the second frame 23 to bend the bendable region 31 of the flexible screen 30. The back surface may be attached to the front surface of the hinge main body 250. At this time, the bendable region 31 of the flexible screen 30 may be bent with the bending of the hinge main body 250, and the two elastic members 26 elastically urge the first frame 21 away from the hinge main body 250. Keeping the flexible screen 30 in an unfolded state, not only can compensate the tolerance of the hinge device 25 in a direction perpendicular to its bending axis, but also prevent the flexible screen 30 from being separated from the hinge body 250 and arched. To avoid damage to the flexible screen.

15 to FIG. 18, FIG. 15 is a perspective view showing the bent state of the electronic device of FIG. 1. FIG. 16 is a cross-sectional view taken along line XVI-XVI of FIG. 15, and FIG. 17 is taken along line XVII- of FIG. Fig. 18 is a cross-sectional view taken along line XVIII-XVIII of Fig. 15. When the electronic device 100 is bent, a bending force is applied to the electronic device 100 to disengage the convex hull 285 of each positioning member 28 on the first link 251 from the second link 252. The first positioning hole 2502 is slid and slides along the corresponding circular arc surface 2527, and the elastic member 284 of each positioning member 28 is elastically deformed; the circular arc surfaces 2527 of the two second links 252 are respectively along the The two first guiding surfaces 2514 of the first link 251 are rotated to be close to each other, and the circular arc faces 2577 of the two second link end covers 257 are respectively along the two ends of the first link end cover 256. The guiding surfaces 2564 are rotated to be close to each other; the connecting portion of the limiting block 2575 on each second link end cover 257 slides along the guiding slot 2567 of the corresponding first link end cover 256, and the The limiting portion of the limiting block 2575 slides along the corresponding limiting slot 2517 of the first link 251; and the magnetic members 29 between the first link 251 and the second link 252 are close to each other to increase the attractive force. . The convex hull 285 of each of the positioning members 28 on the second link 252 is disengaged from the corresponding first positioning hole 2502 on the third link 253 and slides along the circular arc surface 2535, each positioning The elastic member 284 of the member 28 is elastically deformed; the circular arc surface 2535 of the third link 253 is rotated along the second sliding surface 2524 of the corresponding second link 252 to move toward the middle of the hinge main body 250, and is connected. The circular arc surface 2587 of each third link end cover 258 on the third link 253 rotates along the guide surface 2574 of the corresponding second link end cover 257 toward the hinge body 250. Moving in the middle; the connecting portion of the limiting block 2585 connected to each of the third link end caps 258 on the third link 253 slides along the guiding slot 2578 of the corresponding second link end cover 257 And the limiting portion of the limiting block 2585 slides along the corresponding limiting slot 2528 of the second link 252; the magnetic members 29 between the third link 253 and the second link 252 are close to each other to attract the attraction. Keep growing. At the same time, the convex hull 285 of each positioning member 28 on the other second link 252 is detached from the corresponding first positioning hole 2502 on the fourth link 254 to slide along the circular arc surface 2545. The elastic member 284 of a positioning member 28 is elastically deformed; the circular arc surface 2545 of the fourth link 254 is rotated along the second sliding surface 2524 of the corresponding second link 252 to move toward the middle of the hinge main body 250. The arcuate surface 2587 of each of the third link end caps 258 connected to the fourth link 253 is rotated along the guide surface 2574 of the corresponding second link end cover 257 toward the hinge body. The middle portion of the 250 is moved; the connecting portion of the limiting block 2585 attached to each of the third link end cap members 258 on the fourth link 254 is along the guide chute of the corresponding second link end cap member 257 2578 slides, and the limiting portion of the limiting block 2585 slides along the corresponding limiting slot 2528 of the second link 252; and the magnetic members 29 between the fourth link 254 and the second link 252 are close to each other. Increase the appeal.

When the convex hull 285 of the positioning member 28 on the first link 251 crosses the arc top of the circular arc surface 2527 of the second link 252, between each second link 252 and the first link 251 The magnetic member 29 is magnetically attracted so that the circular arc faces 2527 of the two second links 252 continue to slide along the first guiding sliding surface 2514 to approach each other, and the elastic member 284 of the positioning member 28 is elastically reset to push the second The link 252 continues to rotate adjacent to the first link 251; the limit block 2575 of each second link end cover 257 slides along the corresponding limit groove 2517 until the positioning on the first link 251 The convex hulls 285 of the member 28 are respectively opposite to the second positioning holes 2504 of the second link 252. The elastic members 284 of the positioning member 28 are elastically reset and are engaged in the corresponding second positioning holes 2504, each of the limiting blocks 2575 The corresponding limiting slot 2517 slides against the end of the limiting slot 2517 adjacent to the front surface 2511, and the magnetic members 29 between the first link 251 and each of the second links 252 are attached to each other. The convex hull 285 of the positioning member 28 on one of the second links 252 passes over the arc top of the circular arc surface 2535 of the third link 253, and the magnetic property between the second link 252 and the third link 253 The member 29 is magnetically attracted such that the circular arc surface 2535 of the third link 253 continues to slide along the second guide sliding surface 2524 toward the middle of the hinge main body 250, and the elastic member 284 of the positioning member 28 is elastically reset. The third link 253 is pushed to move toward the middle of the hinge body 250 until the convex hull 285 of the positioning member 28 on the second link 252 faces the second positioning hole on the third link 253, respectively. 2504, the elastic member 284 of the positioning member 28 is elastically reset and is inserted into the corresponding second positioning hole 2504. Each of the limiting blocks 2585 slides along the corresponding limiting slot 2528 to abut the top surface of the limiting slot 2528 adjacent to the front surface 2521. At one end, the magnetic members 29 between the second link 252 and the third link 253 are attached to each other for adsorption. The convex hull 285 of the positioning member 28 on the other second link 252 passes over the arc top of the circular arc surface 2545 of the fourth link 254, and the magnetic property between the second link 252 and the fourth link 254 The member 29 is magnetically attracted to cause the arcuate surface 2545 of the fourth link 254 to continue to slide along the second guide surface 2524 to move toward the middle of the hinge body 250, and the elastic member 284 of the positioning member 28 is elastically reset. The fourth link 253 is pushed to move toward the middle of the hinge body 250 until the convex hull 285 of the positioning member 28 on the second link 252 faces the second positioning hole on the fourth link 254, respectively. 2504, the elastic member 284 of the positioning member 28 is elastically reset and is inserted into the corresponding second positioning hole 2504. Each of the limiting blocks 2585 slides along the corresponding limiting slot 2528 to abut the top of the limiting slot 2528 adjacent to the front surface 2521. One end of the magnetic member 29 between the second link 252 and the fourth link 254 is attached to each other. At this time, the hinge main body 250 is bent, and the flexible screen 30 is bent with the hinge main body 250; the convex hulls 285 of the positioning members 28 are respectively inserted into the corresponding second positioning holes 2504 and the magnetic members 29 Adjacent to each other, the electronic device 100 is kept in a bent state; the sliding plate 2537 slides in the direction of the first frame 21, and the sliding plate 2537 pushes the elastic member 26 to compress the elastic member 26; the first chain The front surface 2511 of the joint 251, the front surface 2521 of the two second links 252, and the front surface 2531 of the two third links 253 are connected to each other to form an arcuate curved surface, that is, the front surface 2511 of the first link 251. The front surface 2521 of the two second links 252 and the front surface 2531 of the two third links 253 have a circular arc surface to facilitate the fitting of the flexible screen 30; the first link end cover The front surface 2561 of the piece 256, the front surface 2571 of the two second link end cover members 257 and the front surface 2581 of the two second link end cover members 258 are connected to each other to form an arcuate curved surface, that is, the first a front surface 2561 of the link end cap member 256, a front surface 2571 of the two second link end cover members 257, and two of the second link ends The front surface 2581 of the cover member 258 has a circular arc surface to facilitate the fitting of the flexible screen 30; the first frame 21 rotates with the third link 253, and the second frame 23 follows The fourth links 254 are rotated to approach each other.

When the electronic device 100 needs to be unfolded, the first frame 21 and the second frame 23 are pulled outward, and the convex hull 285 of each positioning member 28 on a second link 252 is disengaged from the third The second positioning hole 2504 of the link 253 is slid along the corresponding circular arc surface 2535, and the elastic member 284 of each positioning member 28 is elastically deformed, and the circular arc surface 2535 of the third link 253 is corresponding. The second guide surface 2524 of the second link 252 rotates to move away from the middle portion of the hinge main body 250, and is connected to the circular arc surface of each third link end cover 258 on the third link 253. 2587 rotates along a guide surface 2574 of the corresponding second link end cover member 257 to move away from a middle portion of the hinge main body 250; each third link end cover member connected to the third link 253 The connecting portion of the limiting block 2585 on the 258 slides along the guiding slot 2578 of the corresponding second link end cover 257, and the limiting portion of the limiting block 2585 is along the corresponding limit on the second link 252. The groove 2528 slides, and the magnetic members 29 between the third link 253 and the second link 252 are desorbed by the external force and moved away from each other to reduce the attractive force. The convex hull 285 of each positioning member 28 on the other second link 252 is disengaged from the second positioning hole 2504 of the fourth link 254 and slides along the corresponding circular arc surface 2545, and each positioning member 28 The elastic member 284 is elastically deformed, and the circular arc surface 2545 of the fourth link 254 rotates along the second sliding surface 2524 of the corresponding second link 252 to move away from the middle portion of the hinge main body 250, and is connected to the The circular arc surface 2587 of each third link end cover 258 on the fourth link 254 rotates along the guide surface 2574 of the corresponding second link end cover 257 toward the middle away from the hinge main body 250. Moving; the connecting portion of the limiting block 2585 connected to each of the third link end caps 258 on the fourth link 254 slides along the guiding slot 2578 of the corresponding second link end cover 257, The limiting portion of the limiting block 2585 slides along the corresponding limiting slot 2528 of the second link 252, and the magnetic member 29 between the fourth link 254 and the second link 252 is desorbed by the external force and is away from each other. And the attraction is decreasing. The convex hull 285 of each positioning member 28 on the first link 251 is disengaged from the corresponding first positioning hole 2502 on the second link 252 and slides along the corresponding circular arc surface 2527, each positioning The elastic member 284 of the member 28 is elastically deformed; the arcuate faces 2527 of the two second links 252 are respectively rotated along the two first guiding surfaces 2514 of the first link 251 to move away from each other. The circular arc surface 2577 of the second link end cover member 257 is respectively rotated away from each other along the two guide sliding surfaces 2564 of the first link end cover member 256; each of the second link end cover members 257 The connecting portion of the limiting block 2575 slides along the guiding slot 2567 of the corresponding first link end cover 256, and the limiting portion of the limiting block 2575 slides along the corresponding limiting slot 2517 of the first link 251. The magnetic members 29 between the first link 251 and the second link 252 are desorbed by the external force and moved away from each other to continuously reduce the magnetic force.

When the convex hull 285 of the positioning member 28 on the first link 251 crosses the arc top of the circular arc surface 2527 of the second link 252, between the first link 251 and each of the second links 252 The attraction of the magnetic member 29 continues to decelerate less, and the elastic member 284 of the positioning member 28 still exerts a thrust against the circular arc surface 2527, so that the circular arc surfaces 2527 of the two second links 252 continue along the first sliding surface, respectively. 2514 slides away from each other, and the limiting block 2575 of each second link end cover member 257 slides along the corresponding limiting slot 2517 until the convex hulls 285 of the positioning members 28 on the first link 251 are directly opposite. The first positioning hole 2502 of the second link 252, the elastic member 284 of the positioning member 28 is elastically reset, so that the convex hull 285 is inserted into the corresponding first positioning hole 2502, and each limiting block 2575 is along the corresponding limiting slot 2517. Sliding against the end of the limiting slot 2517 away from the front surface 2511, the first link 251 and the two second links 252 are horizontal. The convex hull 285 of the positioning member 28 on one of the second links 252 passes over the arc top of the circular arc surface 2535 of the third link 253, and the magnetic member 29 between the third link 252 and the second link 252 The magnetic force reduces the abutting force of the elastic member 284 of the positioning member 28 against the circular arc surface 2535, so that the circular arc surface 2535 of the third link 253 continues to slide along the second sliding sliding surface 2524 toward away from the hinge main body 250. The central portion moves until the convex hull 285 of the positioning member 28 on the second link 252 faces the first positioning hole 2502 on the third link 253, and the elastic member 284 of the positioning member 28 is elastically reset so that the convex hull 285 is stuck. In the corresponding first positioning hole 2502, each limiting block 2585 slides along the corresponding limiting slot 2528 to abut the end of the limiting slot 2528 away from the front surface 2521. The third link 253 and the first The link 251 and the second link 252 are horizontal. The convex hull 285 of the positioning member 28 on the other second link 252 passes over the arc top of the circular arc surface 2545 of the fourth link 254, and the magnetic member 29 between the fourth link 254 and the second link 252 The magnetic force reduces the abutting force of the elastic member 284 of the positioning member 28 against the circular arc surface 2545, so that the circular arc surface 2545 of the fourth link 254 continues to slide along the second sliding sliding surface 2524 toward away from the hinge main body 250. The middle portion moves until the convex hull 285 of the positioning member 28 on the second link 252 is opposite to the first positioning hole 2502 on the fourth link 254, and the elastic member 284 of the positioning member 28 is elastically reset to make the convex hull 285 card In the corresponding first positioning hole 2502, each limiting block 2585 slides along the corresponding limiting slot 2528 to abut the end of the limiting slot 2528 away from the front surface 2521. The fourth link 254 and the first The link 251, the second link 252, and the third link 253 are horizontal. At this time, the hinge body 250 is unfolded, the flexible screen 30 is flattened with the hinge body 250, and the plurality of the magnetic members 29 are spaced apart from each other; the positioning members 28 are respectively inserted into the corresponding first positioning holes 2502. The electronic device 100 protects the unfolded state, the second link, the first link, the second link, the first link, the second link, the second link, the third link, the third link, the second link, the third link, and the second link. Chain link third link third link first link second link second link fourth link fourth link fourth link fourth link fourth link second link fourth link fourth link The first link, the second link, the third link.

Since the magnetic member 29 is disposed on the hinge device 25, the hinge device 25 can be held in the bent position by the mutual attraction of the magnetic members 29, thereby preventing the rebound opening phenomenon due to the weight of the whole machine or other reasons in the bent state. Thereby, the hinge device 25 can automatically maintain the bent state. Also, the magnetic member 29 is located on the hinge device 25 without occupying the internal space of the casing 20, facilitating the arrangement of other electronic components inside the casing 20. Further, the magnetic member 29 is located outside the casing 20 to effectively prevent the magnetic force of the magnetic member 29 from affecting the electromagnetic performance of other electronic components inside the casing 20, ensuring that it can work normally.

The positioning member 20 of the embodiment of the present invention can position the hinge device 25 in the bending position and the unfolding position respectively, and the elastic force generated by the positioning member 20 can make the state of the hinge device 25 in the bending position and the deployment position relatively stable, that is, the need A certain initial force is applied to cause the hinge device 25 to deform, so that it is not easily affected by its own gravity and accidentally unfolds or bends.

It can be understood that the term "relative sliding" as used in the present invention does not limit the direct contact and relative sliding between two elements, but may also include the relative sliding of the third-party elements, and the third-party elements are not limited to the physical elements, such as Materials, membranes, etc., but may also contain non-physical elements, such as gaps, spaces, etc., or a combination of physical and non-physical elements; third-party elements are not limited to one, but may contain multiple. That is, as long as the two elements have a relatively sliding motion relationship, regardless of the actual position of the two elements, it can be considered to be within the scope of the "relative sliding" referred to in the present invention.

The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It is the scope of protection of the present invention.

Claims (30)

1. A hinge device is disposed between the first frame and the second frame of the housing for supporting a flexible screen disposed on the housing, wherein the hinge device includes a hinge body and is disposed on the hinge A positioning mechanism on the main body for maintaining the shape of the hinge device.
2. A hinge device according to claim 1, wherein said hinge body comprises a plurality of links that are relatively movable, the front faces of the links are for supporting the flexible screen, and the sides of the links are used for adjacent links The sides are fixed by magnetism.
3. A hinge device according to claim 2, wherein the position of the side of each link away from the front side is magnetically attracted to the adjacent link.
4. The hinge device according to claim 2, wherein a magnetic member is disposed at a position away from the front side of each of the links, and the flexible screen surrounds each of the magnetic members when the hinge device is bent.
5. A hinge device according to claim 1, wherein said hinge body comprises a plurality of links, said positioning mechanism comprises a plurality of magnetic members, and each of said two adjacent said links is correspondingly provided to be engageable with each other. In the magnetic member, when the hinge device is in a bent state, the magnetic members between each adjacent two of the links are attracted to each other.
6. A hinge device according to claim 5, wherein said plurality of said magnetic members are a plurality of pairs of magnet bars and iron bars, and each pair of said magnet bars and iron bars are respectively disposed on two adjacent said chain links on.
7. The hinge device according to claim 5, wherein said link includes a first link and a second link, said second link being hinged to said first link, said second link Rotating about the first axis relative to the first link, the magnetic member is disposed between the first link and the second link, when the first link and the second link are bent, The magnetic members are attracted to each other.
8. The hinge device according to claim 7, wherein the opposite sides of the first link are respectively provided with fixing grooves, and the opposite sides of the second link are provided with fixing grooves, the first chain The fixing groove of the joint corresponds to the fixing groove of the adjacent second link, and the magnetic member is respectively fixed in the fixing groove of the first link and the second link.
9. The hinge device according to claim 8, wherein the fixing groove of the first link is opened at an intersection of a back surface and a side surface of the first link and is parallel to the first axis, the second chain The fixing groove of the joint is formed at an intersection of the back side and the side of the second link and is parallel to the first axis.
10. A hinge device according to claim 8, wherein said magnetic member is glued or snapped into a corresponding fixing groove.
11. The hinge device according to claim 7, wherein said link further comprises a third link and a fourth link, one side of said third link being slidably coupled to said first frame, said One side of the fourth link is fixedly coupled to the second frame, and the first link and the second link are disposed between the third link and the fourth link.
12. The hinge device according to claim 11, wherein the positioning mechanism further comprises a positioning member, and a positioning member is disposed between the first link and the second link, and the positioning member is used for respectively positioning the hinge device In the unfolded state and the bent state.
13. The hinge device according to claim 12, wherein the positioning member has elasticity, and the positioning member maintains an elastic compression state in the unfolded state and the bent state.
14. The hinge device according to claim 12, wherein the positioning member and the bent state positioning member are both attached to the second link.
15. The hinge device according to claim 12, wherein the positioning member applies an elastic force to the first link and the second link in an unfolded state of the hinge device that is greater than a deployed state and a bend of the positioning member in the hinge device. The transition state between states is the elastic force applied to the first link and the second link.
16. The hinge device according to claim 12, wherein the positioning member applies an elastic force to the first link and the second link in a bent state of the hinge device to be larger than a deployed state and a bend of the positioning member in the hinge device. The elastic state exerted by the transition state between the folded states on the first link and the second link.
17. The hinge device according to claim 12, wherein said first link comprises a body extending parallel to a bending axis of said hinge body, said arcs being respectively provided with arc-shaped guides on opposite sides thereof The sliding surface is convexly disposed on one side of the second link, and the sliding strip is provided with a circular arc surface, and the circular arc surface is slidably attached to the sliding surface.
18. The hinge device of claim 17, wherein the sliding surface of the first link is provided with an elastic positioning member, and the first positioning hole is formed on the circular arc surface of the second link a second positioning hole, the positioning member slidingly abuts against the circular arc surface of the second link, and when the first link and the second link are in an unfolded state, the positioning member is positioned at In the first positioning hole, when the first link and the second link are in a bent state, the positioning member is positioned in the second positioning hole.
19. The hinge device of claim 17, wherein each of the first sliding segments has a first positioning hole and a second positioning hole, and the first positioning hole and the first positioning hole The two positioning holes are located on the same circular arc line of the guiding surface, and the circular arc surface of the second chain link is provided with an elastic positioning member. When the hinge body is in an unfolded state, the positioning member is positioned at The positioning member is positioned in the second positioning hole when the hinge body is in a bent state in the first positioning hole.
20. A hinge device according to claim 12, wherein said second link includes a body extending parallel to a bending axis of said hinge body, said second link being remote from said first link A sliding surface is formed on one side, and the third link and the fourth link are convexly provided with a sliding strip, and the guiding strip is provided with a circular arc surface slidably attached to the guiding surface.
21. The hinge device according to claim 20, wherein the sliding surface of the second link is provided with an elastic positioning member, and the arcuate surfaces of the third link and the fourth link are opened a first positioning hole and a second positioning hole, wherein the positioning member is positioned in the first positioning hole when the hinge body is in an unfolded state, and the positioning member is positioned when the hinge body is in a bent state In the second positioning hole.
22. The hinge device of claim 20, wherein the guiding surface of the second link is respectively provided with a first positioning hole and a second positioning hole, the first positioning hole and the second positioning The holes are located on the same circular arc line of the guiding surface, and the arcuate surfaces of the third link and the fourth link are provided with elastic positioning members, and when the hinge body is in an unfolded state, the positioning The member is positioned in the first positioning hole, and the positioning member is positioned in the second positioning hole when the hinge body is in a bent state.
23. The hinge device according to claim 17 or 20, wherein the sliding surface is provided with a receiving hole, the positioning member is disposed in the receiving hole, and the positioning member is slidably received in the receiving hole. a positioning rod, and an elastic member sleeved on the positioning rod, one end of the positioning rod is provided with a spherical convex convex bag, and the elastic member forces the positioning rod to move outward to extend the receiving hole The convex hull of the positioning member protrudes from the receiving hole.
24. The hinge device according to claim 17 or 20, wherein the circular arc surface is provided with a receiving hole, the positioning member is disposed in the receiving hole, and the positioning member is slidably received in the receiving hole. a positioning rod, and an elastic member sleeved on the positioning rod, one end of the positioning rod is provided with a spherical convex convex bag, and the elastic member forces the positioning rod to move outward to extend the receiving hole The convex hull of the positioning member protrudes from the receiving hole.
25. The hinge device according to claim 17, wherein during the bending of the hinge device, each of the second links and the first portion when the positioning member passes over the arc top of the circular arc surface The magnetic members between the links are magnetically attracted to cause the circular arc surfaces of the second links to continue to slide along the sliding surfaces to approach each other until the positioning member is engaged in the corresponding second positioning hole, the magnetic member Adhesive to each other.
26. The hinge device according to claim 17, wherein during said deploying of said hinge device, said first link is engaged when said positioning member passes over an arc top of a circular arc surface of said second link The magnetic force of the magnetic member between the second link is less than the elastic abutting force of the positioning member against the circular arc surface, and the positioning member elastically pushes against the circular arc surface of the second link to continue along the sliding surface Sliding away from each other until the positioning member snaps into the corresponding first positioning hole, and the magnetic strip between the first link and the second link is separated.
27. The hinge device according to claim 18, 19, 21 or 22, wherein the positioning member is an elastic positioning bead, and the beads of the elastic positioning bead can be respectively engaged with the first positioning hole or the second Positioning holes.
28. The hinge device according to claim 18 or 21, wherein the first positioning hole and the second positioning hole are located on a same circular arc line of the circular arc surface, and the first positioning hole is away from the In the strip, the second positioning hole is adjacent to the strip.
29. A housing comprising a first frame, a second frame, and a hinge device according to any one of claims 1-28, wherein the hinge device is coupled to the first frame and the second frame Between the bodies.
30. An electronic device comprising a flexible screen and a housing according to claim 29, the flexible screen being disposed on the housing.

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