CN116685087A - Mobile terminal and its folding case - Google Patents

Abstract

The invention provides a folding casing, which includes two opposite frames and a folding device arranged between the two frames, the folding device includes a support mechanism and a link mechanism connected between the support mechanism and each frame , the support mechanism includes a support assembly that is rotatably connected to each frame, the linkage mechanism includes a link member, and the link member includes a first end rod and a second end rod located at opposite ends thereof, and is connected to the first end rod and the second end rod. The connecting rod between the second end rods, and the guide shaft arranged on the connecting rod, the axis of the guide shaft is parallel to the folding axis of the folding device, the frame is provided with a guide groove perpendicular to the folding axis of the folding device, and the connecting rod The first end rod of the piece is slidably inserted into the guide groove, each support assembly includes a first support piece, the first support piece includes a first support plate, and a convex line is provided on the back of the first support plate, and a In the chute, the guide shaft is slidably and rotatably arranged in the chute. The present invention also provides a mobile terminal provided with a folding case.

Description

Mobile terminal and its folding case

technical field

The invention relates to the field of electronic equipment, in particular to a foldable casing and a mobile terminal provided with the foldable casing.

Background technique

Electronic products such as smart phones or tablet computers and other mobile terminals include a housing and a display screen arranged on the housing. With the development of flexible screen technology, there have been structures in which the display screen is folded up and down, such as a folding screen. cell phone etc. Existing folding screen mobile phones are generally divided into internal folding screen mobile phones and external folding screen mobile phones, wherein internal folding screen mobile phones are further divided into U-shaped internal folding screen mobile phones and water drop type internal folding screen mobile phones; the water drop type internal folding screen mobile phones are relatively Compared with the U-shaped inner folding screen mobile phone in the fully folded state, the whole machine is thinner and the user experience is better. However, the folding device used to drive the folding of the display screen in the existing water drop-shaped inner folding screen mobile phone is generally arranged on the side of the screen, thus increasing the width of the black border of the display screen.

Contents of the invention

The purpose of the present invention is to provide a mobile terminal capable of realizing a narrow frame, and a foldable casing of the mobile terminal.

In order to solve the above technical problems, the present invention provides a folding casing, which includes two opposite frames, and a folding device arranged between the two frames, the folding device includes a supporting mechanism and is connected to the The link mechanism between the support mechanism and each frame, the support mechanism includes a support assembly that is rotatably connected to each frame, the link mechanism includes a link, and the link includes a The first end rod and the second end rod at opposite ends, the connecting rod connected between the first end rod and the second end rod, and the guide shaft arranged on the connecting rod, the axis of the guide shaft The line is parallel to the folding axis of the folding device, the frame body is provided with a guide groove perpendicular to the folding axis of the folding device, the first end rod of the connecting rod is slidably inserted into the guide groove, Each of the supporting components includes a first supporting member, and the first supporting member includes a first supporting plate, and the back side of the first supporting plate is provided with a protruding line, and a slide groove is provided on the protruding bar, and the guide The shaft is slidably and rotatably arranged in the chute, and each frame body rotates relative to the other frame body to drive the corresponding link to rotate, and the rotation of the link to drive the corresponding support assembly to rotate, Folding or flattening of the folding device is thereby achieved.

The present invention also provides a mobile terminal, including a folding case and a flexible member, the flexible member covers the front of the folding case, and the flexible member is folded synchronously with the folding or unfolding of the folding case or flatten.

The folding device of the mobile terminal of the present invention is arranged between two frames, the supporting mechanism of the folding device is arranged on the back of the flexible member, and a link mechanism is arranged between each frame and the supporting mechanism, and the supporting The mechanism includes a support assembly that is rotatably connected to each frame, one end of the link member of the linkage mechanism is slidably connected to the frame, and the opposite end of the link member is rotatably and slidably connected to the frame. The support components described above. Therefore, each frame body rotates relative to the other frame body to drive the corresponding link to rotate, and the rotation of the link to drive the corresponding support assembly to rotate, thereby realizing the folding or unfolding of the folding device , the flexible part is folded or flattened synchronously with the folding or flattening of the folding device, and the support mechanism is arranged on the back of the flexible part, away from the side of the flexible part, so as not to increase the size of the flexible part The width of the black border can increase the screen ratio of the mobile terminal.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the implementation. Obviously, the drawings in the following description are some implementations of the present invention, which are common to those skilled in the art. As far as the skilled person is concerned, other drawings can also be obtained based on these drawings on the premise of not paying creative work.

FIG. 1 is a schematic perspective view of a mobile terminal in one embodiment of the present invention.

FIG. 2 is a schematic perspective view of the three-dimensional structure of the mobile terminal in FIG. 1 .

FIG. 3 is a three-dimensional exploded schematic view of the flexible screen and the folding case of the mobile terminal in FIG. 1 .

FIG. 4 is an exploded perspective view of the folding device and the frame of the folding casing in FIG. 3 .

FIG. 5 is a schematic perspective view of the frame body and the folding device in FIG. 4 from another perspective.

FIG. 6 is an exploded perspective view of the folding device in FIG. 4 .

FIG. 7 is a schematic perspective view of the structure of the folding device in FIG. 6 from another perspective.

FIG. 8 is an exploded schematic diagram of a further three-dimensional structure of the folding device in FIG. 6 .

FIG. 9 is a perspective view of the structure of the folding device in FIG. 8 from another perspective.

FIG. 10 is a front view of the folding case in FIG. 3 .

FIG. 11 is a side view of the mobile terminal in FIG. 1 .

Fig. 12 is a sectional view along line XII-XII in Fig. 1 .

Fig. 13 is a sectional view along line XIII-XIII in Fig. 1 .

Fig. 14 is a sectional view taken along line XIV-XIV in Fig. 1 .

FIG. 15 is a schematic perspective view of the folded state of the mobile terminal in FIG. 1 .

FIG. 16 is a perspective view of the structure of the folding device of the mobile terminal in FIG. 15 .

FIG. 17 is a side view of the mobile terminal in FIG. 15 .

Fig. 18 is a cross-sectional view along line XVIII-XVIII in Fig. 15 .

Fig. 19 is a cross-sectional view along line XIX-XIX in Fig. 15 .

Fig. 20 is a cross-sectional view along line XX-XX in Fig. 15 .

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In addition, the following descriptions of the various embodiments refer to the attached drawings to illustrate specific embodiments in which the present invention can be practiced. The directional terms mentioned in the present invention, for example, "upper", "lower", "front", "back", "left", "right", "inner", "outer", "side", etc., only is to refer to the direction of the attached drawings. Therefore, the direction terms used are for better and more clearly explaining and understanding the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific orientation construction and operation, therefore, should not be construed as limiting the invention.

In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", "connection", and "set on..." should be understood in a broad sense, for example, it can be A fixed connection can also be a detachable connection or an integral connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be an internal communication between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Please refer to FIG. 1 to FIG. 7 together. The mobile terminal 100 in one embodiment of the present invention includes a foldable casing 20 and a flexible member 30 disposed on the foldable casing 20. The foldable casing 20 is used to support the flexible 30 pieces. The flexible component 30 can be various flexible components with corresponding functions, such as a flexible display screen, a flexible touch screen, and a flexible touch screen. The folding casing 20 includes two opposite frames 22 and a folding device 23 disposed between the two frames 22 . The folding device 23 includes a support mechanism 24 for supporting the flexible member 30 and a link mechanism 25 connected between the support mechanism 24 and each frame 22 . The support mechanism 24 includes a support assembly 26 that is rotatably connected to each frame body 22. The link mechanism 25 includes a link member 251 and a link base 255. One end of the link member 251 is slidably connected to the corresponding frame body 22. The other end of the rod member 251 away from the frame body 22 is rotatably and slidably connected to the corresponding support assembly 26; specifically, each link member 251 includes a first end rod 2511 and a second end rod 2513 at opposite ends, and a connection The connecting rod 2514 between the first end rod 2511 and the second end rod 2513, and the guide shaft 2517 arranged on the connecting rod 2514, the axis line of the guide shaft 2517 is parallel to the folding axis of the folding device 23; each frame 22 is provided with a guide groove 226 perpendicular to the folding axis of the folding device 23, the first end rod 2511 of the link member 251 is slidably inserted in the guide groove 226, and each support assembly 26 includes a first support member 261, the first The support 261 includes a first support plate 2611, each first support 261 is provided with a protruding strip 2616 on the back, and a sliding groove 2617 is provided on the protruding strip 2616, and the guide shaft 2517 is slidably and rotatably arranged on the corresponding first support In the chute 2617 of 261, each frame body 22 rotates relative to the other frame body 22 to drive the corresponding link member 251 to rotate, and the rotation of the link member 251 drives the corresponding support assembly 26 to rotate to realize the folding device 20 is folded or unfolded, and the flexible member 30 is folded or unfolded synchronously with the folding or unfolding of the folding device 20 . Preferably, the two frames 22 are synchronously moved closer to each other or rotate away from each other to drive the link 251 to rotate, and the rotation of the link 251 drives the support assembly 26 connected to each frame 22 to rotate, so as to realize the folding device 20 When folding or unfolding, the flexible member 30 is folded or unfolded synchronously with the folding or unfolding of the folding device 20 .

In this embodiment, the first end rod 2511 and the second end rod 2513 respectively extend from opposite ends of the connecting rod 2514 toward directions away from each other. The first end rod 2511 is slidably connected to the corresponding frame body 22, the second end rod 2513 is rotatably and slidably connected to the corresponding support assembly 26, and the two frame bodies 22 are relatively folded or flattened through two link members 251 The two supporting components 26 are driven to be folded or flattened relative to each other, so as to realize the bending or flattening of the flexible member 30 . Specifically, the two frames 22 are relatively close to each other and folded to drive the corresponding link 251 to rotate, and the rotation of the link 251 drives the two supporting components 26 to rotate and approach each other, so that the folding device 23 is folded to realize the flexible component 30; the two frame bodies 22 are relatively far away from the rotation and flattened to drive the corresponding link 251 to rotate, and the rotation of the link 251 drives the two support components 26 to rotate away from each other, so that the folding device 23 is flattened In order to realize the flattening of the flexible member 30 .

The mobile terminal 100 of the present invention is, for example, but not limited to any other products and components with display functions such as mobile phones, tablet computers, monitors, liquid crystal panels, OLED panels, TVs, smart watches, and vehicle displays. The "connection" in the description of the embodiments of the present invention includes direct connection and indirect connection, for example, the connection between A and B includes the direct connection between A and B or the connection through a third element C or more other elements. The connection also includes two cases of integrated connection and non-integrated connection. The integrated connection means that A and B are formed and connected in one piece, and the non-integrated connection means that A and B are formed and connected in a non-integrated manner. It can be understood that, unless defined by modifiers, prefixes or suffixes, etc., the "connection" mentioned in the embodiments of the present invention should be understood as including but not limited to fixed connection, rotational connection, sliding connection, pivotal connection, screw connection, movable connection, etc. Connections, interference connections, friction connections, elastic connections, rigid connections, adhesive connections, etc. It can be understood that the "fixing" mentioned in the embodiment of the present invention is not limited to the direct fixing of two components, but can be fixed by a third-party component or more components. It can be understood that the "rotational connection", "sliding connection", "rotational connection", "elastic connection", "rigid connection", "fixed connection", "movable connection", "pivot connection", "screw connection" Various specific connection relationships such as "connection" are not limited to the direct connection of two elements, but may be connected through a third-party element or more other elements, unless it is clearly indicated that the two elements are directly connected.

The folding device 23 of the mobile terminal 100 of the present invention is arranged between two frames 22, and the supporting mechanism 24 of the folding device 23 is arranged on the back of the flexible member 30, that is, the supporting mechanism 24 is used to support the flexible member 30; each frame 22 A link mechanism 25 is provided between the support mechanism 24, the support mechanism 24 includes a support assembly 26 that is rotatably connected to each frame body 22, and one end of the link member 251 of the link mechanism 25 is slidably connected with the frame body 22, and The opposite end of the link member 251 is rotationally and slidably connected to the support assembly 26, so the two frames 22 are relatively folded or flattened, and the link member 251 drives the two support assemblies 26 to be relatively folded or flattened, thereby realizing When the folding device 20 is folded or unfolded, the flexible member 30 is folded or unfolded synchronously with the folding or unfolding of the folding device 20 . The bending part of the flexible part 30 is accommodated in the accommodation space surrounded by the two supporting components 26, which reduces the space that the bending part of the flexible part 30 needs to occupy in the thickness direction of the mobile terminal 100 after being bent, so as to reduce the number of mobile terminals 100. The overall thickness in the folded state; in addition, the support mechanism 24 is arranged on the back of the flexible member 30, away from the side of the flexible member 30, so that the width of the black border of the flexible member 30 will not be increased, and the screen ratio of the mobile terminal 100 will be improved. .

As shown in Figures 1 and 3, the flexible member 30 includes a bendable area 31 covering the front of the support mechanism 24, and two non-bendable areas 33 connected to the opposite sides of the bendable area 31, which can be bent The area 31 is bent to form a bent portion of the flexible member 30 , and the two non-bending areas 33 are respectively connected to the front surfaces of the two frame bodies 22 . The support mechanism 24 is used to support the bendable region 31 of the flexible member 30 , and the bendable region 31 is bent or flattened along with the support mechanism 24 . Specifically, during the folding process of the two frame bodies 22, the link member 251 is driven to rotate, the rotation of the link member 251 and the folding of the frame body 22 drive the support mechanism 24 to bend, and the bendable area 31 bends along with the support mechanism 24. The bending part formed by bending the bendable area 31 is accommodated in the accommodation space formed by the bending of the support mechanism 24; during the flattening process, the two frame bodies 22 drive the connecting rod 251 to rotate, connecting The rotation of the rod 251 and the folding of the frame body 22 drive the support mechanism 24 to flatten, and the bendable area 31 is flattened along with the support mechanism 24 . The front in the present invention refers to the surface of each component facing the flexible member 30 when the mobile terminal 100 is in a flattened state, such as the front of the support assembly 26 and the front of the frame body 22 refer to the surface of the mobile terminal 100 facing the flexible member 30 when it is flattened; The back in the present invention refers to the surface of each component facing away from the flexible member 30 when the mobile terminal 100 is in a flattened state. Both the front and the back in the present invention are suitable for the above definition.

As shown in Figure 4, each frame body 22 is provided with a first receiving groove 221 on the side close to the other frame body 22, specifically, the first receiving groove 221 is arranged on the front side 220 of each frame body 22 and is close to the other frame body. At one side of the body 22, the opposite ends of the first receiving groove 221 pass through the opposite two sides of the frame body 22 respectively, and the first receiving groove 221 does not pass through the back of the frame body 22, so as to form a baffle plate 222 at the back of the frame body 22 . Each frame body 22 is provided with a second storage groove 223 close to the corresponding first storage groove 221, and the second storage groove 223 communicates with the first storage groove 221; The front side 220 is close to the first storage groove 221, and the opposite two ends of the second storage groove 223 pass through the opposite sides of the frame body 22 respectively. One side of the second storage groove 223 communicates with the first storage groove 221, and the second storage groove 223 has no The back of the frame body 22 is pierced to form a connecting plate 224 on the back of the frame body 22 . The thickness of the connecting plate 224 along the thickness direction of the frame body 22 is greater than the thickness of the baffle plate 222 along the thickness direction of the frame body 22, thereby forming a stepped structure on the side of each frame body 22 facing the other frame body 22, and the two frames The stepped structure of the body 22 encloses an accommodating space for accommodating the folding device 23 .

Specifically, the guide groove 226 is provided on the front side of the connecting plate 224 of the frame body 22 close to the first receiving groove 221 , and the guide groove 226 extends along the direction perpendicular to the folding axis of the folding device 23 and passes through the first receiving groove 221 . In this embodiment, the connecting plate 224 of each frame body 22 is provided with two guide grooves 226 at intervals, and the first end rod 2511 of the link member 251 is slidably inserted into each guide groove 226 .

In other embodiments, the connecting plate 224 of each frame body 22 may be provided with one or more than two guide grooves 226, and the first end rod 2511 of the link member 251 is slidably inserted in each guide groove 226. .

In other embodiments, each frame body 22 is provided with a guide rail perpendicular to the folding axis of the folding device 23, the first end rod 2511 of the connecting rod 251 is provided with a guide groove matched with the guide rail, and the guide rail of the frame body 22 It can slide relative to the guide groove of the link member 251 .

Please refer to FIGS. 3-9 together. Each support assembly 26 also includes a second support 265 that is rotatably connected to the first support 261, and a support base 267. The first support 261 is away from the second support 265. One side of the second support member 265 is rotatably connected to the support base 267 , and the side of the second support member 265 away from the first support member 261 is rotatably connected to the corresponding frame body 22 . When the foldable shell 20 is flattened, the fronts of the two support assemblies 26 of the support mechanism 24 are coplanar with the fronts 220 of the two frames 22, specifically, the fronts of the first support 261 and the second support 265, And the front 220 of the frame body 22 is located on the same plane for supporting the flattened flexible member 30; The accommodating space 27 for accommodating the bending portion 301 of the flexible member 30, specifically, the two first support members 261 and the two second support members 265 enclose the accommodating space 27, and the inner cavity of the accommodating space 27 The direction from the second supporting member 265 to the first supporting member 265 gradually increases.

Each frame body 22 is connected to the support assembly 26 through the cooperation and rotation of the first arc groove 228 and the first arc rail 2653 , so as to realize the relative rotation of the support assembly 26 relative to the frame body 22 . Each frame body 22 has a connecting piece 227 extending into the second receiving groove 223, and each connecting piece 227 is provided with a first arc groove 228, and the axis line of the first arc groove 228 is parallel to the folding axis of the folding device 23 . In this embodiment, each frame body 22 extends into the second receiving groove 223 with two connecting pieces 227 at intervals, and the two connecting pieces 227 are respectively adjacent to the two guide grooves 226; each connecting piece 227 is an arc piece, The first arc groove 228 is disposed on the front surface of the connecting piece 227 . Specifically, the first support plate 2611 of the first support member 261 is rectangular, the second support member 265 includes a rectangular second support plate 2651 , and the first arc groove 228 passes between the second support plate 2651 and the frame body 22 The first support plate 2611 and the second support plate 2651 are connected through the cooperation and rotation of the first arc track 2653, and the first support plate 2611 and the second support plate 2651 are connected by the second arc groove 2655 and the second arc track 2613. The supporting bases 267 are rotationally connected through the cooperation between the third arc groove 2672 and the third arc rail 2614 .

In this embodiment, one side of the back of each second supporting member 265 is provided with two spaced first arcuate rails 2653, and each first arcuate rail 2653 is rotatably matched to the corresponding first arcuate groove. 228 ; two second arc grooves 2655 are provided on the back side of each second support member 265 away from the first arc track 2653 . Specifically, two arc-shaped extension pieces 2654 are provided on the back side of the second support plate 2651 away from the first arc-shaped rail 2653 , and the second arc-shaped groove 2655 is provided on the front side of the extension pieces 2654 . The first arc track 2653 is rotatably attached to the corresponding first arc groove 228 . The first arc track 2653 is an arc sheet, and the back side of the first arc track 2653 is an arc surface, and the arc surface and the inner surface of the first arc groove 228 are rotated and fitted, and the first arc track 2653 and the first arc groove 228 are rotationally connected through the first rotation axis A1 (as shown in FIG. 12 ), the first rotation axis A1 is a virtual axis, and the first rotation axis A1 is parallel to the folding axis of the folding device 23 .

In other embodiments, each first circular arc rail 2653 and the corresponding connecting piece 227 are rotatably inserted into each other, specifically, an arc groove may be provided on the first circular arc rail 2653 along its circumference, and the arc shape The connecting piece 227 is inserted into the circular arc groove, so that the first circular arc rail 2653 is rotationally connected with the connecting piece 227 along the first rotation axis A1, or the connecting piece 227 is provided with an arc groove along its circumference, the second An arc track 2653 is inserted in the arc slot, so that the first arc track 2653 is rotatably connected to the connecting piece 227 along the first rotation axis A1. Since the first circular arc rail 2653 and the connecting piece 227 are rotatably plugged together, the first circular arc rail 2653 and the connecting piece 227 will not disengage from each other during the relative rotation process.

In this embodiment, two second circular arc rails 2613 are provided on the side of each first support 261 away from the other first support 261, and each first support 261 is close to the other first support. One side of 261 is provided with two spaced third arc rails 2614, each second arc rail 2613 is rotationally connected with the corresponding second arc groove 2655, and each third arc rail 2614 is connected with the corresponding support The third circular arc groove 2672 of the seat body 267 is rotatably connected. Specifically, two second circular arc rails 2613 are provided on the back side of each first support plate 2611 away from the other first support plate 2611, and two third circular arc rails 2614 are provided on each first support plate. 2611 is close to one side of the other first support plate 2611. The back surface of each second arc rail 2613 is set as an arc surface that is rotatably attached to the inner surface of the corresponding second arc groove 2655, and the second arc rail 2613 passes through the second arc groove 2655. The second rotation axis A2 (as shown in FIG. 12 ) is rotationally connected, the second rotation axis A2 is a virtual axis, and the second rotation axis A2 is parallel to the folding axis of the folding device 23 . The back surface of each third arc track 2614 is set as an arc surface rotatably attached to the inner surface of the corresponding third arc groove 2672, and the third arc track 2614 passes through the third arc groove 2672. The third rotation axis A3 (as shown in FIG. 12 ) is rotationally connected, the third rotation axis A3 is a virtual axis, and the third rotation axis A3 is parallel to the folding axis of the folding device 23 .

In other embodiments, each second arc rail 2613 and the corresponding extension piece 2654 are rotatably inserted into each other. Specifically, an arc groove may be provided on the second arc rail 2613 along its circumference, and the arc shape The extension piece 2654 is inserted into the arc groove, so that the second arc rail 2613 is rotationally connected with the extension piece 2654 along the second rotation axis A2; or the extension piece 2654 is provided with an arc groove along its circumference, the second The two arc rails 2613 are inserted into the arc grooves, so that the second arc rails 2613 are rotatably connected with the extension piece 2654 along the second rotation axis A2. Since the second arc rail 2613 and the extension piece 2654 are rotatably inserted together, the second arc rail 2613 and the extension piece 2654 will not be separated from each other during the relative rotation.

In other embodiments, each third arc rail 2614 is rotatably plugged into the corresponding support base 267, specifically, an arc groove may be provided on the support base 267, and the third arc rail 2614 Inserted in the arc groove, so that the third arc rail 2614 is rotationally connected with the support base 267 along the third rotation axis A3; an arc groove may also be provided on the third arc rail 2614 along its circumference, The support base 267 is provided with an arc rail inserted in the arc groove, so that the arc rail and the arc groove are rotatably connected along the third rotation axis A3. Since the third arc rail 2614 is rotatably inserted with the support base 267 , the third arc rail 2614 and the support base 267 will not be separated from each other during the relative rotation.

As shown in FIG. 9 , an inclined protruding strip 2616 is formed on the back of each first support member 261 , and a slide groove 2617 is formed along the extending direction of the protruding strip 2616 . Specifically, the back of each first support plate 2611 is provided with two spaced convex strips 2616, and each convex strip 2616 is inclined from the middle position of the back of the first support plate 2611 to the side away from the other first support member 261. Extending, the opposite sides of the chute 2617 pass through the opposite sides of the protruding bar 2616 , and the end of the chute 2617 away from the first support plate 2611 does not pass through the end surface of the protruding bar 2616 . Each first support plate 2611 is provided with two first avoidance notches 2617 and two second avoidance notches 2618 on the side away from the second circular arc rail 2613, and the two first avoidance notches 2617 correspond to the two second avoidance notches respectively. The three arc tracks 2614 and the two second avoidance notches 2618 are respectively close to the two protruding lines 2616 .

As shown in Figures 6 to 8, each connecting rod 251 is roughly in a Z-shaped structure, and the connecting rod 2514 extends obliquely from the end of the first end rod 2511 to the second end rod 2513, and the second end rod 2513 extends from the connecting rod The end of 2514 away from the first end rod 2511 extends obliquely to the side away from the first end rod 2511 . The end of the second end rod 2513 of each link member 251 away from the first end rod 2511 is rotatably connected to the connecting rod base 255, and the rotational connection axis between the second end rod 2513 and the connecting rod base 255 Parallel to the folding axis of the folding device 23 . Specifically, the end of the second end rod 2513 away from the first end rod 2511 is provided with a connecting shaft 2516, and the top of the connecting rod base 255 is provided with a connecting gap 2551, and the top of the connecting rod base 255 is parallel to the folding axis of the folding device 23. A shaft hole 2553 is opened in the direction of the shaft hole 2553 through the connection gap 2551, the end of the second end rod 2513 away from the first end rod 2511 is accommodated in the connection gap 2551, and the connection shaft 2516 is rotatably connected in the shaft hole 2553; The rod base 255 is provided with a limiting surface 2555 on a side of the connecting notch 2551 close to the corresponding first supporting member 261 , and the limiting surface 2555 prevents the folding device 23 from refolding.

The guide shaft 2517 of each connecting rod 251 is arranged between the first end rod 2511 and the second end rod 2513. Optionally, the guide shaft 2517 is arranged on the side of the connecting rod 2514; the rotation of the frame body 22 drives the connecting rod The member 251 rotates relative to the connecting rod base 255 , so that the guide shaft 2517 pushes against the inner wall of the sliding slot 2617 to drive the first supporting member 261 to rotate relative to the supporting base 267 . Specifically, the guide shaft 2517 is disposed on the side of the connecting rod 2514 and extends along the axis direction parallel to the connecting shaft 2516 ; preferably, the guide shaft 2517 is disposed on the connecting rod 2514 adjacent to the second end rod 2513 .

The folding device 23 further includes a connecting frame 28 located between the two supporting components 26 , and the supporting base 267 and the connecting rod base 255 are respectively fixedly connected to the connecting frame 28 . Specifically, the connection frame 28 includes a rectangular fixed plate 281 and flanges 283 arranged on opposite sides of the fixed plate 281. The fixed plate 281 and the two flanges 283 enclose a mounting groove 285 to support the base body 267 and the connecting rod base. 255 is fixedly disposed in the installation groove 285 . In this embodiment, the supporting mechanism 24 of the folding device 23 includes two supporting components 26, and the opposite ends of the back of each supporting component 26 are respectively provided with a link mechanism 25, that is, the opposite sides of the mounting groove 285 of the connecting frame 28 Two connecting rod bases 255 and two supporting bases 267 are respectively provided, and the connecting rod bases 255 and supporting bases 267 on the same side are respectively located at opposite ends of the connecting frame 28, and each supporting base 267 is adjacent to the corresponding Connecting rod base 255.

Please refer to FIGS. 4 to 14 together. When assembling the folding device 23, the second circular arc rail 2613 of each first support member 261 is rotatably connected to the second circular arc groove 2655 of the corresponding second support member 264. ; Insert the guide shaft 2517 of each link member 251 into the corresponding chute 2617; insert the connecting shaft 2516 of the two link members 251 connected to each support assembly 26 into the two connecting rods on the same side of the connection frame 28 The shaft hole 2553 of the base 255 and the third arc rails 2614 of the two first support members 261 are respectively rotatably connected to the third arc grooves 2672 of the corresponding support base 267 .

When assembling the folding housing 20, place the two frames 22 side by side, that is, the sides of the two baffles 222 are attached, so that the first receiving groove 221 and the second receiving groove 223 of the two frames 22 form an installation space, Then the assembled folding device 23 is placed in the installation space, so that the first end rod 2511 of each link member 251 is slidably inserted in the corresponding guide groove 226, and each second support member 265 The two first arc rails 2653 are rotatably connected to the corresponding first arc grooves 228 . At this time, the front surfaces of the two first support members 261 , the front surfaces of the two second support members 264 and the front surfaces 220 of the two frame bodies 22 are coplanar. When assembling the mobile terminal 100, fix the back of the non-bending area 33 at one end of the flexible member 30 to the front 220 of one of the frame bodies 22, and fix the back of the non-bending area 33 at the opposite end of the flexible member 30 to the other end. The front side 220 of the frame body 22 attaches the back side of the bendable area 31 of the flexible member 30 to the front side of the support mechanism 24 .

As shown in Figures 10 to 14, the axis line of the first arc groove 228, the axis line of the second arc groove 2655 and the axis line of the third arc groove 2672 are mutually spaced and parallel, and parallel to the folding device 23 axis of folding. Specifically, the axis of the first arc groove 228 coincides with the axis of the corresponding first rotation axis A1, and the axis of the second arc groove 2655 coincides with the axis of the corresponding second rotation axis A2. , the axis of the third arc groove 2672 coincides with the axis of the corresponding third rotation axis A3; the first rotation axis A1, the second rotation axis A2 and the third rotation axis A3 are all virtual axes, and the first The rotation axis A1 , the second rotation axis A2 and the third rotation axis A3 are parallel to the folding axis of the folding device 23 . Therefore, the supporting mechanism 24 is rotatably connected by a virtual axis, which can reduce the occupation of the installation space surrounded by the first receiving groove 221 and the second receiving groove 223 of the two frames 22, facilitate the storage of other components, and reduce the weight of the folding casing 20. overall weight, and can reduce manufacturing costs and the like.

When the foldable housing 20 is flattened, the connection frame 28 is accommodated in the installation space surrounded by the first receiving groove 221 and the second receiving groove of the two frames 22, the front of the first support member 261, the second support member 265 The front side of the frame body 22 and the front side 220 of the frame body 22 are located on the same plane, and the flexible member 30 is flattened on the plane. The axis line of the first arc groove 228, the axis line of the second arc groove 2655 and the axis line of the third arc groove 2627 are located on the same plane, that is, the axis line of the first rotation axis A1, the axis line of the second The axis of the rotation axis A2 and the axis of the third rotation axis A3 are located on the same plane. Specifically, the axis line of the first arc groove 228, the axis line of the second arc groove 2655 and the axis line of the third arc groove 2627 are located on the same plane parallel to the flexible piece; in this embodiment, The axis line of the first rotation axis A1, the axis line of the second rotation axis A2 and the axis line of the third rotation axis A3 are located at the back of the flexible member 30, namely the axis line of the first rotation axis A1, the axis line of the second rotation axis A1, and the axis line of the third rotation axis A3. The axis line of the axis A2 and the axis line of the third rotation axis A3 are located parallel to the back of the flexible member 30; preferably, the back of the first support plate 2611 and the back of the second support plate 2651 are coplanar, and the second The axis of the first rotation axis A1 , the axis of the second rotation axis A2 and the axis of the third rotation axis A3 are located on the same plane. The axis line of the rotation shaft between the first support member 261 and the support base 267 is closer to the front of the first support member 261 than the axis line of the rotation shaft between the connecting rod member 251 and the connecting rod base 255; The axis of the third rotation axis A3 between the first support 261 and the support base 267 is closer to the axis of the first support 261 than the axis of the rotation axis between the connecting rod 251 and the connecting rod base 255 front. That is, the axis of the third rotation axis A3 is closer to the flexible member 30 than the axis of the rotation axis between the link member 251 and the link base 255 . The second end rod 2513 of each link member 251 is supported on the limit surface 2555 of the corresponding link base 255 to prevent the link member 251 from further turning to the back, thereby preventing the folding device 23 from folding back and damaging the flexibility. member 30; at this time, the guide shaft 2517 of each link member 251 is located at the end of the corresponding slide groove 2617 away from the flexible member 30.

Please refer to FIG. 15 to FIG. 20 together. When the mobile terminal 100 is folded, a bending force is applied to one of the frames 22 of the mobile terminal 100, so that the one frame 22 turns to the other frame 22 to drive The link member 251 connected to one of the frames 22 rotates. Specifically, the rotation of one of the frame bodies 22 causes the first end rod 2511 of the link member 251 to slide in the corresponding guide groove 226, and the connecting shaft 2516 of the link member 251 rotates along the corresponding shaft hole 2553, so that The guide shaft 2517 of the rod 251 slides in the corresponding sliding groove 2617 toward the end close to the flexible member 30 and rotationally pushes against the inner wall of the sliding groove 2617, so that the corresponding first support member 261 is relative to the support base with the connecting rod member 251 267 rotation; because the first supporting member 261 and the corresponding second supporting member 265 are rotationally connected by the second arc rail 2613 and the second arc groove 2655, the second supporting member 265 and the corresponding frame body 22 The first circular arc rail 2653 is rotationally connected with the first circular arc groove 228, therefore, the rotation of one of the frame body 22 and the rotation of the first support member 261 together drive the second support member 261 relative to the first support member. 261 and one of the frames 22 rotates. Apply bending force to the other frame body 22 in the same way, so that the other frame body 22 turns to the one of the frame body 22 to drive the link member 251 connected to the other frame body 22 Rotation; specifically, the rotation of the other frame body 22 makes the first end rod 2511 of the link member 251 slide in the corresponding guide groove 226, and the connecting shaft 2516 of the link member 251 rotates along the corresponding shaft hole 2553 , the guide shaft 2517 of the connecting rod 251 slides in the corresponding sliding groove 2617 toward the end close to the flexible member 30 and rotationally pushes against the inner wall of the sliding groove 2617, so that the corresponding first supporting member 261 follows the connecting rod 251 relative to the support The seat body 267 rotates; because the first support member 261 and the corresponding second support member 265 are rotationally connected with the second arc groove 2655 through the second arc rail 2613, the second support member 265 and the corresponding frame body 22 It is rotationally connected with the first arc groove 228 through the first arc rail 2653, therefore, the rotation of the other frame 22 and the rotation of the first support 261 jointly drive the second support 261 relative to the first The supporting member 261 and the one frame body 22 rotate to realize the folding of the folding device 23 . Since the axis of the rotation shaft between the connecting shaft 2516 of the link member 251 and the shaft hole 2553 is farther away from the flexible member 30 than the axis of the corresponding third rotation axis A3, and the guide shaft 2517 is slidably and rotatably arranged on the corresponding Therefore, during the folding process of the folding device 23, the rotation angle of the first support member 261 is greater than the rotation angle of the second support member 265, that is, the rotation angle of the first support plate 2611 of the same support assembly 26 is greater than The rotation angle of the second support plate 2651 is such that a tapered accommodating space 27 is formed between the two support components 26 of the support mechanism 24 . Specifically, the first support members 261 of the two support assemblies 26 are opposite to each other, and the second support members 265 are opposite to each other, and the interval between the two first support members 261 is greater than the interval between the second support members 265, that is, the two The interval between the first support plates 2611 is greater than the interval between the two second support plates 2651 . During the folding process of the folding device 23, the bendable region 31 of the flexible member 30 bends with the folding device 23 to form a bending portion 301 accommodated in the accommodating space 27. The cross section of the bending portion 301 is drop-shaped, flexible The front surfaces of the two non-bending regions 33 of the part 30 are attached to each other, so that the overall thickness of the mobile terminal 100 in the folded state is reduced. The first avoidance notch 2617 and the second avoidance notch 2618 on each first support member 261 are used to respectively avoid the corresponding support seat body 267 and the connecting rod base 255, so as to avoid the support seat body 267 and the connecting rod base 255 against the corresponding first support plate 2611.

In other bending methods for the mobile terminal 100, a bending force can be applied to the two frames 22 at the same time, so that the two frames 22 are close to each other, so as to drive the corresponding link 251 to rotate and approach each other. The rotation of 22 and the link member 251 drives the first support member 261 and the second support member 265 to rotate to realize the folding of the folding device 23 , and the flexible member 30 is folded with the folding device 23 to realize the bending of the mobile terminal 100 .

As shown in FIGS. 16 to 20 , when the folding device 23 is in the bent state, the first support member 261 and the second support member 265 of each support mechanism 24 are accommodated in the first receiving grooves 221 of the two frame bodies 22 and the installation space surrounded by the second receiving groove 223; the distance between the axes of the two first arc grooves 228 of the folding device 23 is smaller than that between the axes of the two second arc grooves 2655 The interval between the axis lines of the two second arc grooves 2655 is smaller than the interval between the axis lines of the two third arc grooves 2672; that is, the axis of the two first rotation axes A1 The distance between the centerlines is smaller than the distance between the centerlines of the two second rotation axes A2, and the distance between the centerlines of the two second rotation axes A2 is smaller than the centerlines of the two third rotation axes A3 interval between.

As shown in FIGS. 11 to 14 , when the mobile terminal 100 needs to be flattened, one of the frames 22 is pulled outward, so that the one of the frames 22 rotates away from the other frame 22 to drive the mobile terminal 100 connected to the other frame. The link member 251 of one of the frame bodies 22 rotates. Specifically, the rotation of one of the frame bodies 22 causes the first end rod 2511 of the link member 251 to slide in the corresponding guide groove 226, and the connecting shaft 2516 of the link member 251 rotates along the corresponding shaft hole 2553, so that The guide shaft 2517 of the rod 251 slides in the corresponding sliding groove 2617 toward the end away from the flexible member 30 and rotationally pushes against the inner wall of the sliding groove 2617, so that the corresponding first supporting member 261 moves with the connecting rod 251 relative to the support base. 267 rotation; the rotation of one of the frame bodies 22 and the rotation of the first support member 261 jointly drive the second support member 261 to rotate relative to the first support member 261 and the one frame body 22 . Apply a flattening force to the other frame body 22 in the same way, so that the other frame body 22 rotates away from the one frame body 22 to drive the connecting rod connected to the other frame body 22 251 rotation; specifically, the rotation of the other frame 22 makes the first end rod 2511 of the link member 251 slide in the corresponding guide groove 226, and the connecting shaft 2516 of the link member 251 slides along the corresponding shaft hole 2553 Rotate, the guide shaft 2517 of the connecting rod 251 slides in the corresponding sliding groove 2617 toward the end away from the flexible member 30 and rotates against the inner wall of the sliding groove 2617, so that the corresponding first supporting member 261 moves with the connecting rod 251 relative to The support base 267 rotates; the rotation of the other frame 22 and the rotation of the first support 261 jointly drive the corresponding second support 261 to rotate relative to the first support 261 and the one frame 22, so that A flattening of the folding device 23 is effected. During the flattening process of the folding device 23 , the bendable region 31 of the flexible member 30 is flattened along with the folding device 23 .

In other ways of flattening the mobile terminal 100, a flattening force can be applied to the two frames 22 at the same time, so that the two frames 22 are separated from each other, so as to drive the corresponding link 251 to rotate and move away from each other. The rotation of 22 and the link member 251 drives the first support member 261 and the second support member 265 to rotate to realize the flattening of the folding device 23 , and the flexible member 30 is flattened along with the folding device 23 to realize the flattening of the mobile terminal 100 .

The above is the implementation manner of the embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the embodiment of the present invention, some improvements and modifications can also be made. These improvements and modifications are also It is regarded as the protection scope of the present invention.

Claims (13)

1. A folding casing, characterized in that it comprises two opposite frames, and a folding device arranged between the two frames, the folding device includes a support mechanism and is connected to the support mechanism and The link mechanism between each frame body, the support mechanism includes a support assembly that is rotatably connected to each frame body, the link mechanism includes a link member, and the link member includes a second rod at its opposite two ends An end rod and a second end rod, a connecting rod connected between the first end rod and the second end rod, and a guide shaft arranged on the connecting rod, the axes of the guide shafts are parallel On the folding axis of the folding device, the frame body is provided with a guide groove perpendicular to the folding axis of the folding device, and the first end rod of the connecting rod is slidably inserted in the guide groove, each The support assembly includes a first support member, the first support member includes a first support plate, a convex line is provided on the back of the first support plate, a sliding groove is provided on the convex line, and the guide shaft slides and rotatably arranged in the chute, each frame body rotates relative to the other frame body to drive the corresponding link to rotate, and the rotation of the link to drive the corresponding support assembly to rotate, thereby realizing The folding or unfolding of the folding device. 2. The foldable casing according to claim 1, wherein each of the support assemblies further comprises a second support member rotatably connected to the first support member, and a support base, and the first support member The support is rotatably connected to the support base, and the second support is rotatably connected to the corresponding frame. When the foldable shell is flattened, the front of the first support, the front of the second support The front side and the front side of the frame body are on the same plane for supporting the flexible member; An accommodating space, the inner cavity of the accommodating space gradually increases from the second support to the first support. 3. The foldable casing according to claim 2, wherein the second support member comprises a second support plate, and the first arc groove and the second arc groove are connected between the second support plate and the frame body. A circular arc rail is connected in rotation, the first support plate and the second support plate are connected in rotation through the second arc groove and the second arc rail, and the first support plate and the second support plate are connected in rotation. The support bases are connected through the cooperation and rotation of the third arc groove and the third arc rail; the axis line of the first arc groove, the axis line of the second arc groove and the third arc groove The axis lines of the arc grooves are spaced apart from each other and parallel to the folding axis of the folding device. 4. The folding casing according to claim 3, wherein the first circular arc rail and the first circular arc groove are connected by a first rotating shaft, and the axis of the first rotating shaft The line coincides with the axis line of the first arc groove; the second arc track and the second arc groove are connected by a second rotating shaft, and the axis line of the second rotating shaft is in line with the The axis line of the second arc groove coincides; the third arc track and the third arc groove are connected by a third rotating shaft, and the axis line of the third rotating shaft is aligned with the third arc groove. The axis lines of the slots coincide; the axis lines of the first rotating shaft, the axis line of the second rotating shaft and the axis line of the third rotating shaft are located on the same plane parallel to the flexible piece . 5. The foldable casing according to claim 4, wherein when the foldable casing is folded, the distance between the axes of the two first rotating shafts of the support mechanism is less than two The interval between the axis lines of the second rotating shafts, the interval between the axis lines of the two second rotating shafts is smaller than the interval between the axis lines of the two third rotating shafts. 6. The folding casing according to claim 2, wherein the linkage mechanism further comprises a linkage base, the second end rod of the linkage member is rotatably connected to the linkage base, The rotation connection axis between the second end rod and the connecting rod base is parallel to the folding axis of the folding device, and the rotation of the connecting rod relative to the connecting rod base drives the first A supporting member rotates relative to the supporting base. 7. The folding case according to claim 6, wherein the rotation of the frame drives the rotation of the connecting rod relative to the connecting rod base, so that the guide shaft pushes against the sliding slot The inner wall of the inner wall drives the first supporting member to rotate relative to the supporting base. 8. The foldable casing according to claim 7, wherein the connecting rod extends obliquely from the first end rod to the second end rod, and the second end rod is away from the connecting rod One end of the first end rod extends to a side away from the first end rod, and the guide shaft is arranged at a place where the connecting rod is adjacent to the second end rod. 9 . The foldable case according to claim 2 , wherein the protruding strip is obliquely provided on the back of the first support member, and the slide groove extends from adjacent to the protruding strip along the extending direction. One side of the support base extends obliquely toward the first end rod of the connecting rod. 10. The foldable casing according to claim 2, wherein the axis of the rotation shaft between the first support member and the support base is larger than the connecting rod member and the connecting rod base. The axis of the rotating shaft between the seats is closer to the front of the first supporting member. 11. The folding case according to claim 6, wherein the folding device further comprises a connecting frame, the connecting frame is located between two supporting components, the supporting base and the connecting rod base respectively fixedly connected to the connection frame. 12. The foldable casing according to claim 11, wherein each frame is provided with a first receiving groove and a second receiving groove communicating with the first receiving groove on a side close to the other frame, so that When the foldable shell is flattened, the connecting frame is accommodated in the installation space surrounded by the first receiving grooves of the two frames; when the foldable shell is folded, the first support and the second support are accommodated It is placed in the installation space surrounded by the first receiving groove and the second receiving groove of the two frame bodies. 13. A mobile terminal, characterized in that it comprises the foldable casing and the flexible piece according to any one of claims 1-12, the flexible piece covers the front of the foldable casing, and the flexible piece follows The folding or flattening of the folding shell is performed synchronously with the folding or flattening of the folding shell.