CN108965503B - Foldable mobile terminal - Google Patents

Abstract

The present invention relates to a foldable mobile terminal, comprising: a flexible display screen; a first shell and a second shell, the flexible display screen is arranged on the first shell and the second shell; and a folding mechanism, comprising a first rotating assembly connected to the first shell and a second rotating assembly connected to the second shell, the first and second rotating assemblies each comprising a slide plate, a rotating shaft and a connecting rod, the slide plate is at least partially accommodated in the shell and can slide and retract relative to the shell, the rotating shaft is arranged on the slide plate, the first end of the connecting rod is slidably hinged on the rotating shaft, and the second end is rotatably connected to the shell. The above-mentioned folding mechanism enables the foldable mobile terminal to realize the unfolding and folding of the flexible display screen without destroying the appearance integrity of the foldable mobile terminal.

Description

Foldable mobile terminal

Technical Field

The present invention relates to the technical field of electronic equipment, and in particular to a foldable mobile terminal.

Background technique

Flexible displays are bendable, which makes it possible for smart mobile terminals equipped with flexible displays, such as smartphones, to switch between folded and unfolded states. When the mobile terminal is unfolded, the side facing the user and the side facing away from the user are equal in length. However, when it is folded, the thickness of the mobile terminal itself causes a difference in the length of the two sides, which are originally equal. This requires the foldable mobile terminal to adapt to the length difference between the two sides in different states.

Summary of the invention

A technical problem solved by the present invention is how to make the foldable mobile terminal adapt to the size changes of two relative sides caused by its own thickness in different states.

A foldable mobile terminal, comprising:

Flexible display screens;

A shell assembly includes a first shell and a second shell, wherein the flexible display screen is arranged on the first shell and the second shell; and

The folding mechanism includes a first rotating component connected to the first shell and a second rotating component connected to the second shell, the first rotating component includes a first slide plate, a first rotating shaft and a first connecting rod, the first slide plate is at least partially accommodated in the first shell and can slide and retract relative to the first shell, the first rotating shaft is arranged on the first slide plate, the first end of the first connecting rod is slidably hinged on the first rotating shaft, and the second end is rotatably connected to the first shell; the second rotating component includes a second slide plate, a second rotating shaft and a second connecting rod, the second slide plate is at least partially accommodated in the second shell and can slide and retract relative to the second shell, the second rotating shaft is arranged on the second slide plate, the first end of the second connecting rod is slidably hinged on the second rotating shaft, and the second end is rotatably connected to the second shell.

In one embodiment, the folding mechanism further includes a linkage member connecting the first rotating shaft and the second rotating shaft, and a first through hole and a second through hole are provided on the linkage member, the first rotating shaft is penetrated in the first through hole, and the second rotating shaft is penetrated in the second through hole.

In one embodiment, it also includes a first roller and a first spring. A first groove is set on the first slide. The first spring and the first roller abut against the first shell and the first slide. When the first slide is extended or retracted relative to the first shell, the first roller can enter or leave the first groove.

In one embodiment, it also includes a second roller and a second spring. A second groove is set on the second slide. The second spring and the second roller abut against the second shell and the second slide. When the second slide is extended or retracted relative to the second shell, the second roller can enter or leave the second groove.

In one embodiment, the first rotating component also includes a first slider, which is slidably mounted on a first rotating shaft, and the first end of the first connecting rod is rotatably connected to the first slider; the second rotating component also includes a second slider, which is slidably mounted on a second rotating shaft, and the first end of the second connecting rod is rotatably connected to the second slider.

In one embodiment, the first rotating assembly also includes a first bracket connected to the first skateboard, the first rotating shaft is arranged on the first bracket, and the first slider is located between the first bracket and the first skateboard; the second rotating assembly also includes a second bracket connected to the second skateboard, the second rotating shaft is arranged on the second bracket, and the second slider is located between the second bracket and the second skateboard.

In one embodiment, the first rotating component also includes a first elastic sheet arranged in the first bracket, and the first elastic sheet is respectively provided with a first engaging position corresponding to the two extreme positions of the first slider; the second rotating component also includes a second elastic sheet arranged in the second bracket, and the second elastic sheet is respectively provided with a second engaging position corresponding to the two extreme positions of the second slider.

In one embodiment, the first shell includes a first front shell and a first rear shell combined with each other, the second shell includes a second front shell and a second rear shell combined with each other, and the flexible display screen is arranged on the first front shell and the second front shell.

In one embodiment, the first front shell and the first slide plate are provided with corresponding first latch teeth and first notches respectively.

In one embodiment, the second front shell and the second slide plate are provided with corresponding second latching teeth and second notches respectively.

In one embodiment, it also includes a connecting piece and two pressing blocks, wherein the connecting piece spans across the first slide plate and the second slide plate, and the two ends of the connecting piece are respectively connected to the first front shell and the second front shell through a pressing block for relative sliding, wherein the relative position of the pressing block and the connecting piece changes during the folding process of the first shell and the second shell.

In one embodiment, a decorative block is further included, wherein the decorative block connects the first front shell and the second front shell and is located at both ends of the first slide plate and the second slide plate.

In one embodiment, a support bar is further included. The support bar is arranged in the gap between the first slide plate and the second slide plate, and is used to support the flexible display screen together with the first slide plate and the second slide plate.

In one embodiment, the top surface of the support bar faces the flexible display screen and is a curved surface.

A technical effect of an embodiment of the present invention is that the folding mechanism can absorb the size difference between two relative sides of the foldable mobile terminal during the folding and unfolding process, and the foldable mobile terminal has an intact appearance.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a three-dimensional structure of a foldable mobile terminal in an unfolded state provided by an embodiment of the present invention.

FIG. 2 is an exploded schematic diagram of the foldable mobile terminal shown in FIG. 1 .

FIG. 3 is an exploded schematic diagram of the foldable mobile terminal shown in FIG. 1 from another angle.

FIG. 4 is a schematic diagram of a three-dimensional structure of a folding mechanism in a foldable mobile terminal in an unfolded state provided by an embodiment of the present invention.

FIG. 5 is a front schematic view of the folding mechanism shown in FIG. 4 .

FIG. 6 is a schematic diagram of a three-dimensional structure of the folding mechanism shown in FIG. 4 with part of the structure removed.

FIG. 7 is an exploded schematic diagram of the folding mechanism shown in FIG. 4 .

FIG. 8 is a further decomposed schematic diagram of a part of the structure in FIG. 7 .

FIG. 9 is a schematic diagram of an exploded view of a part of the structure in FIG. 7 from another perspective.

FIG. 10 is a schematic diagram of a three-dimensional structure of a foldable mobile terminal provided by an embodiment of the present invention without a flexible display screen.

FIG. 11 is a partial front view schematic diagram of the structure shown in FIG. 10 .

FIG12 is a schematic cross-sectional view along line A-A in FIG11 .

FIG. 13 is a schematic cross-sectional view of the structure shown in FIG. 10 , and the viewing angle is a rear view.

FIG. 14 is a schematic diagram of the structure shown in FIG. 11 with some components in the folding mechanism removed.

FIG. 15 is a rear view of FIG. 14 .

FIG. 16 is a schematic diagram of the structure of the spring sheet in the folding mechanism.

FIG. 17 is a schematic diagram of the structure of the decorative block.

FIG. 18 is a schematic structural diagram of the decorative block from another perspective.

FIG. 19 is a schematic diagram of a three-dimensional structure of a foldable mobile terminal in a folded state provided by an embodiment of the present invention.

FIG. 20 is a schematic diagram of the three-dimensional structure of the foldable mobile terminal shown in FIG. 19 after the flexible display screen is removed.

FIG. 21 is a schematic diagram of the three-dimensional structure of the folding mechanism shown in FIG. 4 in a folded state.

FIG. 22 is a front schematic view of the folding mechanism shown in FIG. 21 .

FIG. 23 is a schematic cross-sectional view of a portion of the structure of a foldable mobile terminal in an unfolded state provided by an embodiment of the present invention.

FIG. 24 is a schematic cross-sectional view of a portion of the structure of a foldable mobile terminal in a semi-unfolded state (or semi-folded state) provided by an embodiment of the present invention.

FIG. 25 is a cross-sectional schematic diagram of a foldable mobile terminal in a folded state provided by an embodiment of the present invention.

Detailed ways

As shown in FIGS. 1, 2, 3 and 4, a foldable mobile terminal provided by an embodiment of the present invention includes a flexible display screen 10, a folding mechanism 20 and a shell assembly 30. The shell assembly 30 includes a first shell 31 and a second shell 32, wherein the folding mechanism 20 is connected between the first shell 31 and the second shell 32, and the flexible display screen 10 is arranged on the first shell 31 and the second shell 32. The foldable mobile terminal shown in FIG. 1 is in an unfolded state, and the first shell 31 and the second shell 32 are symmetrical relative to the folding mechanism 20. As shown in FIG. 19, when the first shell 31 and the second shell 32 are rotated relative to the folding mechanism 20 and are in a fully folded state, the flexible display screen 10 is on the outside of the mobile terminal. As shown in FIG. 1 , in the unfolded state, the extension length of the side of the shell assembly 30 toward the flexible display screen 10 (the scale in the X-axis direction in FIG. 1 ) is the same as the extension length of the side facing away from the flexible display screen 10 (the scale in the X-axis direction in FIG. 1 ). As shown in FIG. 19 , due to the thickness of the shell assembly 30 (the scale in the Y-axis direction in FIG. 1 ), in the folded state, the extension length of the side of the shell assembly 30 toward the flexible display screen 10 is greater than the extension length of the side facing away from the flexible display screen 10. By setting the folding mechanism 20, the first shell 31 and the second shell 32 can adapt to the length difference generated when switching between the unfolded state and the folded state.

The first shell 31 includes a first front shell 311 and a first rear shell 312 that are combined with each other, and the second shell 32 includes a second front shell 321 and a second rear shell 322 that are combined with each other. The combination method can be screw locking, bonding, welding, etc. The flexible display screen 10 is arranged on the first front shell 311 and the second front shell 321. The display area of the flexible display screen 10 can be rectangular or rounded rectangular in the unfolded state. There is a certain distance between the first front shell 311 and the first rear shell 312 in the Y-axis direction. Similarly, there is a certain distance between the second front shell 321 and the second rear shell 322 in the Y-axis direction. This distance provides space for placing components such as power modules and communication modules, and also provides space required for the folding mechanism 20 to slide and retract relative to the first shell 31 and the second shell 32.

There is also a certain distance between the first shell 31 and the second shell 32 in the X-axis direction. The folding mechanism 20 is arranged in the distance between the first shell 31 and the second shell 32 in the X-axis direction, and at least part of the structure of the folding mechanism 20 is accommodated in the first shell 31 and the second shell 32. The distance between the first shell 31 and the second shell 32 in the X-axis direction will change during the rotation of the first shell 31 and the second shell 32 around the folding mechanism 20. Therefore, during the rotation of the first shell 31 and the second shell 32 around the folding mechanism 20, the folding mechanism 20 retracts into the first shell 31 and the second shell 32 to different degrees. Referring to FIG. 4 and FIG. 5 at the same time, the folding mechanism 20 includes a first rotating assembly 50 and a second rotating assembly 60. The first rotating component 50 is connected to the first shell 31, and the first rotating component 50 is at least partially accommodated in the first shell 31 and can slide and retract relative to the first shell 31. The second rotating component 60 is connected to the second shell 32, and the second rotating component 60 is at least partially accommodated in the second shell 32 and can slide and retract relative to the second shell 32. By sliding and retracting the first rotating component 50 relative to the first shell 31 and the second rotating component 60 relative to the second shell 32, the first shell 31 and the second shell 32 can adapt to the length difference generated when switching between the unfolded state and the folded state.

In one embodiment, the first rotating component 50 and the second rotating component 60 have the same structure, and the first rotating component 50 and the second rotating component 60 are symmetrically distributed along the central axis I-I (Figure 5) between the first rotating component 50 and the second rotating component 60. Through the symmetrical arrangement of the first rotating component 50 and the second rotating component 60, the symmetrical opening and closing of the first shell 31 and the second shell 32 along the central axis I-I can be achieved.

With reference to FIGS. 4, 5, 6 and 7, the first rotating assembly 50 includes a first slide plate 51, a first rotating shaft 53 and a first connecting rod 54. The first rotating shaft 53 is disposed on the first slide plate 51, a first end 541 of the first connecting rod 54 is slidably hinged on the first rotating shaft 53, and a second end 542 of the first connecting rod 54 is rotatably connected to the first housing 31. The first slide plate 51 is at least partially accommodated in the first housing 31 and can slide and retract relative to the first housing 31. During the symmetrical opening and closing of the first housing 31 and the second housing 32, the first slide plate 51 and the first rotating shaft 53 slide and retract relative to the first housing 31, the second end 542 of the first connecting rod 54 rotates relative to the first housing 31, and the first end 541 of the first connecting rod 54 slides on the first rotating shaft 53 and rotates relative to the first rotating shaft 53. The length difference generated during the symmetrical opening and closing of the first housing 31 and the second housing 32 is adapted by varying the degree to which the first slide plate 51 is accommodated in the first housing 31.

In the embodiment shown in FIG2 and FIG3 , two first rotating shafts 53 and two first connecting rods 54 are provided on the first slide plate 51, and are vertically symmetrically arranged about the middle position in the Z-axis direction of the first slide plate 51. In some other embodiments, the number of the first rotating shafts 53 and the first connecting rods 54 can be one or more, and different numbers of first rotating shafts 53 and first connecting rods 54 can realize the sliding and telescopic movement of the first slide plate 51 relative to the first housing 31.

Referring to FIGS. 4, 5, 6 and 7 simultaneously, the second rotating assembly 60 includes a second slide plate 61, a second rotating shaft 63 and a second connecting rod 64. The second rotating shaft 63 is disposed on the second slide plate 61, a first end 641 of the second connecting rod 64 is slidably hinged on the second rotating shaft 63, and a second end 642 of the second connecting rod 64 is rotatably connected to the second housing 32. The second slide plate 61 is at least partially accommodated in the second housing 32 and can slide and retract relative to the second housing 32. During the symmetrical opening and closing of the first housing 31 and the second housing 32, the second slide plate 61 and the second rotating shaft 63 slide and retract relative to the second housing 32 together, the second end 642 of the second connecting rod 64 rotates relative to the second housing 32, and the first end 641 of the second connecting rod 64 slides on the second rotating shaft 63 and rotates relative to the second rotating shaft 63. The length difference generated during the symmetrical opening and closing of the first housing 31 and the second housing 32 is adapted by varying the degree to which the second slide plate 61 is accommodated in the second housing 32.

In the embodiment shown in FIG2 and FIG3 , two second rotating shafts 63 and two second connecting rods 64 are provided on the second slide plate 61, and are symmetrically arranged about the middle position in the Z-axis direction of the second slide plate 61. In some other embodiments, the number of the second rotating shafts 63 and the second connecting rods 64 can be one or more, and different numbers of second rotating shafts 63 and second connecting rods 64 can realize the sliding and telescopic movement of the second slide plate 61 relative to the second housing 32.

8 and 9, in one embodiment, the folding mechanism 20 further includes a linkage member 22 connecting the first rotating shaft 53 and the second rotating shaft 63, and the linkage member 22 is provided with a first through hole 221 and a second through hole 222, the first rotating shaft 53 is penetrated in the first through hole 221, and the second rotating shaft 63 is penetrated in the second through hole 222. The linkage member 22 is linked with the first end 541 of the first connecting rod 54 and the first end 641 of the second connecting rod 64, that is, by virtue of the connection of the linkage member 22, the sliding of the first end 541 of the first connecting rod 54 on the first rotating shaft 53 can drive the sliding of the first end 641 of the second connecting rod 64 on the second rotating shaft 63, and vice versa.

The linkage member 22 can synchronize the movement of the first connecting rod 54 slidably hinged on the first rotating shaft 53 and the second connecting rod 64 slidably hinged on the second rotating shaft 63, that is, the sliding extension and retraction of the first slide plate 51 relative to the first housing 31 and the sliding extension and retraction of the second slide plate 61 relative to the second housing 32 can be synchronized, so as to better realize the symmetrical opening and closing of the first housing 31 and the second housing 32. The linkage member 22 can be made of metal material or plastic material.

In other embodiments, the function of the linkage 22 can be achieved by other components, for example, an element for realizing the sliding hinge between the first connecting rod 54 and the first rotating shaft 53 and an element for realizing the sliding hinge between the second connecting rod 64 and the second rotating shaft 63 are integrally arranged. The movement of the first connecting rod 54 slidingly hinged on the first rotating shaft 53 and the second connecting rod 64 slidingly hinged on the second rotating shaft 63 can also be synchronized by the integrally arranged element for realizing the sliding hinge.

7, 8 and 9, in one embodiment, the first rotating assembly 50 further includes a first slider 52, through which the first connecting rod 54 and the first rotating shaft 53 are slidably hinged. The first slider 52 is slidably sleeved on the first rotating shaft 53, and the first end 541 of the first connecting rod 54 is rotatably connected to the first slider 52.

In one embodiment, the first slider 52 includes two sleeves 521 and a connecting arm 522 connected between the sleeves 521 . The first rotating shaft 53 passes through the sleeves 521 of the first slider 52 . The first slider 52 can slide on the first rotating shaft 53 and can also rotate relative to the first rotating shaft 53 .

The first end 541 of the first connecting rod 54 is rotatably connected to the connecting arm 522 of the first slider 52. Further, the connecting arm 522 of the first slider 52 is provided with a first positioning hole 523, and the first end 541 of the first connecting rod 54 is provided with a first positioning column 543, and the first positioning column 543 is inserted into the first positioning hole 523.

The second rotating assembly 60 further includes a second slider 62, through which the second connecting rod 64 and the second rotating shaft 63 are slidably hinged. The second slider 62 is slidably sleeved on the second rotating shaft 63, and the first end 641 of the second connecting rod 64 is rotatably connected to the second slider 62.

In one embodiment, the second slider 62 includes two sleeves 621 and a connecting arm 622 connected between the sleeves 621 , the second rotating shaft 63 passes through the sleeve 621 of the second slider 62 , and the second slider 62 can slide on the second rotating shaft 63 and can also rotate relative to the second rotating shaft 63 .

The first end 641 of the second connecting rod 64 is rotatably connected to the connecting arm 622 of the second slider 62. Further, the connecting arm 622 of the second slider 62 is provided with a second positioning hole 623, and the first end 641 of the second connecting rod 64 is provided with a second positioning column 643, and the second positioning column 643 is inserted into the second positioning hole 623.

In one embodiment, the linkage member 22 includes a first arm portion 223 provided with the first through hole 221 and a second arm portion 224 provided with the second through hole 222. The first arm portion 223 is provided between the two sleeves 521 of the first slider 52, and the second arm portion 224 is provided between the two sleeves 621 of the second slider 62. The first rotating shaft 53 is provided in the first through hole 221, and the second rotating shaft 63 is provided in the second through hole 222. The linkage member 22 serves as a connecting medium between the first slider 52 and the second slider 62, so that the sliding of the first slider 52 on the first rotating shaft 53 and the sliding of the second slider 62 in the second rotating shaft 63 can be synchronized.

As shown in FIGS. 4, 5, 6 and 7, in one embodiment, the first rotating assembly 50 further includes a first bracket 56, and the first rotating shaft 53 is disposed on the first slide 51 through the first bracket 56. Further, the first bracket 56 can be fixed to the first slide 51 by screw locking. The first rotating shaft 53 is passed through the first bracket 56, and the first slider 52 is disposed between the first bracket 56 and the first slide 51. By providing the first bracket 56, the relative movement among the first slider 52, the first end 541 of the first connecting rod 54 and the first rotating shaft 53 can be limited to the space sandwiched between the first bracket 56 and the first slide 51, so as to prevent the first end 541 of the first connecting rod 54 from being separated from the first slider 52.

The second end 542 of the first connecting rod 54 and the first housing 31 can be connected to each other in rotation by the second end 542 of the first connecting rod 54 and the first front housing 311, or by the second end 542 of the first connecting rod 54 and the first rear housing 312, or by the second end 542 of the first connecting rod 54 and the first front housing 311 and the first rear housing 312. In one embodiment, as shown in FIG8, FIG9 and FIG11, the first front housing 311 is provided with a first connecting hole 313, and the second end 542 of the first connecting rod 54 is provided with a first connecting column 544, and the first connecting column 544 is inserted into the first connecting hole 313. Further, as shown in FIG13 and FIG15, the first rotating assembly 50 further includes a first pressing sheet 55, the first pressing sheet 55 is connected to the first front housing 311, and the first pressing sheet 55 limits the first connecting rod 54 so that the first connecting rod 54 is located between the first pressing sheet 55 and the first front housing 311.

As shown in FIGS. 4, 5, 6 and 7, in one embodiment, the second rotating assembly 60 further includes a second bracket 66, and the second rotating shaft 63 is disposed on the second slide 61 through the second bracket 66. Further, the second bracket 66 can be fixed to the second slide 61 by screw locking. The second rotating shaft 63 is passed through the second bracket 66, and the second slider 62 is disposed between the second bracket 66 and the second slide 61. By providing the second bracket 66, the relative movement among the second slider 62, the first end 641 of the second connecting rod 64 and the second rotating shaft 63 can be limited to the space sandwiched between the second bracket 66 and the second slide 61, so as to prevent the first end 641 of the second connecting rod 64 from being separated from the second slider 62.

The second end 642 of the second connecting rod 64 is rotatably connected to the second housing 32 by: the second end 642 of the second connecting rod 64 is rotatably connected to the second front housing 321, or the second end 642 of the second connecting rod 64 is rotatably connected to the second rear housing 322, or the second end 642 of the second connecting rod 64 is rotatably connected to both the second front housing 321 and the second rear housing 322. In one embodiment, as shown in FIGS. 8, 9 and 11, the second front housing 321 is provided with a second connecting hole 323, the second end 642 of the second connecting rod 64 is provided with a second connecting column 644, and the second connecting column 644 is inserted into the second connecting hole 323. Further, as shown in FIGS. 13 and 15, the second rotating assembly 60 further includes a second pressing sheet 65, the second pressing sheet 65 is connected to the second front housing 321, and the second pressing sheet 65 limits the second connecting rod 64 so that the second connecting rod 64 is located between the second pressing sheet 65 and the second front housing 321.

As shown in Fig. 8 and Fig. 9, the folding mechanism 20 further includes a sleeve 24 disposed at both ends of the first rotating shaft 53 and the second rotating shaft 63. The sleeve 24 fixes the first rotating shaft 53 to the first bracket 56, and also fixes the second rotating shaft 63 to the second bracket 66. The number of the first bracket 56 and the second bracket 66 is the same as the number of the first rotating shaft 53 and the second rotating shaft 63. In one embodiment, the number of the first bracket 56 and the second bracket 66 are both two, each of the first bracket 56 is disposed at a corresponding end of the first slide 51 along the Z-axis direction, and each of the second bracket 66 is disposed at a corresponding end of the second slide 61 along the Z-axis direction.

In one embodiment, as shown in FIG. 4 and FIG. 7 , the folding mechanism 20 further includes a support bar 26, which is disposed between the first rotating assembly 50 and the second rotating assembly 60. The support bar 26 is used to support the flexible display screen 10. The support bar 26 may have a certain extension length in the Z-axis direction so as to be disposed between the gap between the first slide plate 51 and the second slide plate 61. In an embodiment in which the first bracket 56 and the second bracket 66 are provided, the support bar 26 may also extend to the gap between the first bracket 56 and the second bracket 66. The support bar 26 may support the flexible display screen 10 together with the first slide plate 51, the second slide plate 61, the first bracket 56, the second bracket 66, the first front shell 311, and the second front shell 321.

As shown in Fig. 8 and Fig. 9, the linkage member 22 is provided with a receiving groove 226, and at least a part of the structure of the support bar 26 is accommodated in the receiving groove 226. In one embodiment, the linkage member 22 includes a connecting portion 225 connecting the first arm portion 223 and the second arm portion 224, and the receiving groove 226 is provided on the connecting portion 225.

As shown in Fig. 8 and Fig. 9, in another embodiment, the sleeve 24 is also provided with a receiving groove 241, and at least part of the structure of the support bar 26 is accommodated in the receiving groove 241. The connection between the support bar 26 and the sleeve 24 and/or the linkage member 22 can be achieved by welding or the like.

As shown in Figures 20, 23, 24 and 25, the top surface 261 of the support bar 26 faces the flexible display screen 10 and is a curved surface. When the foldable mobile terminal is in the semi-folded state shown in Figure 24 or the folded state shown in Figure 25, since the support bar 26 has a curved surface, the first shell 31 and the second shell 32 can be prevented from having a sudden change in contour curvature during the folding process, thereby better supporting the flexible display screen 10.

As shown in Fig. 7, Fig. 8 and Fig. 9, in one embodiment, the first rotating assembly 50 further includes a first elastic piece 57 disposed on the first slide plate 51, and the first elastic piece 57 is respectively provided with a first engaging position 571 at two extreme positions of the sliding direction of the first end 541 of the first connecting rod 54. In the embodiment with the first bracket 56, the first elastic piece 57 is fixed to the first slide plate 51 through the first bracket 56, and the first elastic piece 57 is disposed in the first bracket 56.

The two first engaging positions 571 of the first elastic sheet 57 correspond to the two ends of the sliding path of the first end 541 of the first connecting rod 54 on the first rotating shaft 53. A certain degree of interference is formed between the first engaging position 571 and the first end 541 of the first connecting rod 54, so that the first engaging position 571 forms a certain clamping force on the first end 541 of the first connecting rod 54 to prevent the position of the first connecting rod 54 from changing randomly, thereby stabilizing the position of the first slide plate 51 relative to the first housing 31, that is, the foldable mobile terminal can be kept in a folded state or an unfolded state more stably.

In one embodiment, the first positioning column 543 on the first end 541 of the first connecting rod 54 extends through the opposite sides of the first end 541, wherein one end of the first positioning column 543 is matched with the first positioning hole 523 on the first sliding block 52, and the other end of the first positioning column 543 is inserted into the first engaging position 571 of the first elastic sheet 57. The first engaging position 571 clamps the first positioning column 543 to form a certain clamping force on the first connecting rod 54.

In one embodiment, a first damping position 572 is provided between the two first engaging positions 571 of the first spring sheet 57, wherein the resistance increases when the first end 541 of the first connecting rod 54 slides from the first engaging position 571 to the first damping position 572. The increase in resistance can be achieved by the clamping force applied to the first positioning column 543 by the first damping position 572 being greater than the clamping force applied to the first positioning column 543 by the first engaging position 571. For example, the first spring sheet 57 can be in the shape of an oval with one end open and the other end closed, the two first engaging positions 571 are formed at the two ends of the first spring sheet 57, the first damping position 572 is formed in the middle of the first spring sheet 57, the gap in the first damping position 572 for the first positioning column 543 to pass through is smaller than the gap in the first engaging position 571 for the first positioning column 543 to pass through, and thus the resistance of the first connecting rod 54 increases in the process of passing from the first engaging position 571 to the first damping position 572. By disposing the first elastic sheet 57 in this way, when the first shell 31 and the second shell 32 of the foldable mobile terminal are rotated, there is a stronger damping feeling.

In some other embodiments, the first elastic sheet 57 may also be in a closed ring shape. Further, in some other embodiments, the first elastic sheet 57 may be in two separate strips, and both ends of the two separate strip elastic sheets may be fixed to the first slide plate 51 through a first bracket 56 or other elements (or other forms) to provide different resistances at different positions of the sliding path of the first connecting rod 54 along the first rotating shaft 53.

As shown in Fig. 9, the first bracket 56 has a first receiving cavity 560, and the first elastic sheet 57 is received in the first receiving cavity 560. After the first bracket 56 is fixed to the first slide plate 51, the first slide plate 51 closes the first receiving cavity 560, so that the first elastic sheet 57 is fixed in the first receiving cavity 560.

Further, the first receiving cavity 560 includes two first positioning cavities 561 corresponding to the first engaging position 571 of the first elastic sheet 57, and a first releasing cavity 562 located between the two first positioning cavities 561. The space in the first releasing cavity 562 is larger than the space in the first positioning cavity 561. After the first engaging position 571 is placed in the first positioning cavity 561, the first engaging position 571 is fixed and cannot move. The first damping position 572 located between the two first engaging positions 571 is correspondingly placed in the first releasing cavity 562, and the first releasing cavity 562 has a space that allows the first damping position 572 to undergo elastic deformation.

In one embodiment, the second rotating assembly 60 further includes a second elastic piece 67 disposed on the second slide plate 61, and the second elastic piece 67 is respectively provided with a second engaging position 671 at two extreme positions of the sliding direction of the first end 641 of the second connecting rod 64. In an embodiment with a second bracket 66, the second elastic piece 67 is fixed to the second slide plate 61 through the second bracket 66, and the second elastic piece 67 is disposed in the second bracket 66.

The two second engaging positions 671 of the second elastic sheet 67 correspond to the two ends of the sliding path of the first end 641 of the second connecting rod 64 on the second rotating shaft 63. A certain degree of interference is formed between the second engaging position 671 and the first end 641 of the second connecting rod 64, so that the second engaging position 671 forms a certain clamping force on the first end 641 of the second connecting rod 64 to prevent the position of the second connecting rod 64 from changing randomly, thereby stabilizing the position of the second slide plate 61 relative to the second housing 32, that is, the foldable mobile terminal can be kept in a folded state or an unfolded state more stably.

In one embodiment, the second positioning column 643 on the first end 641 of the second connecting rod 64 extends through the opposite sides of the first end 641, wherein one end of the second positioning column 643 is engaged with the second positioning hole 623 on the second sliding block 62, and the other end of the second positioning column 643 is inserted into the second engaging position 671 of the second elastic sheet 67. The second engaging position 671 clamps the second positioning column 643 to form a certain clamping force on the second connecting rod 64.

Referring to Figures 4, 5, 21 and 22 at the same time, Figure 5 shows that the folding mechanism 20 is in the unfolded state, and the second positioning column 643 formed on the first end 641 of the second connecting rod 64 is inserted into one of the second engaging positions 671, and Figure 22 shows that the folding mechanism 20 is in the folded state, and the second positioning column 643 formed on the first end 641 of the second connecting rod 64 is inserted into the other second engaging position 671.

In one embodiment, a second damping position 672 is provided between the two second engaging positions 671 of the second spring sheet 67, wherein the resistance increases when the first end 641 of the second connecting rod 64 slides from the second engaging position 671 to the second damping position 672. The increase in resistance can be achieved by the clamping force applied to the second positioning column 643 by the second damping position 672 being greater than the clamping force applied to the second positioning column 643 by the second engaging position 671. For example, the second spring sheet 67 can be in the shape of an oval with one end open and the other end closed, the two second engaging positions 671 are formed at the two ends of the second spring sheet 67, the second damping position 672 is formed in the middle of the second spring sheet 67, the gap in the second damping position 672 for the second positioning column 643 to pass through is smaller than the gap in the second engaging position 671 for the second positioning column 643 to pass through, and thus the resistance of the second connecting rod 64 increases in the process of passing from the second engaging position 671 to the second damping position 672. By disposing the second elastic sheet 67 in this way, when the first shell 31 and the second shell 32 of the foldable mobile terminal are rotated, there is a stronger damping feeling.

In some other embodiments, the second elastic piece 67 may also be in a closed ring shape. Further, in some other embodiments, the second elastic piece 67 may be in two separate strips, and both ends of the two separate strip elastic pieces may be fixed to the second slide plate 61 through a second bracket 66 or other elements (or other forms) to provide different resistances at different positions of the sliding path of the second connecting rod 64 along the second rotating shaft 63.

As shown in Fig. 9, the second bracket 66 has a second receiving cavity 660, and the second elastic piece 67 is received in the second receiving cavity 660. After the second bracket 66 is fixed on the second slide 61, the second slide 61 closes the second receiving cavity 660, so that the second elastic piece 67 is fixed in the second receiving cavity 660.

Further, the second receiving cavity 660 includes two second positioning cavities 661 corresponding to the second engaging position 671 of the second elastic piece 67, and a second releasing cavity 662 located between the two second positioning cavities 661. The space in the second releasing cavity 662 is larger than the space in the second positioning cavity 661. After the second engaging position 671 is placed in the second positioning cavity 661, the second engaging position 671 is fixed and cannot move. The second damping position 672 located between the two second engaging positions 671 is correspondingly placed in the second releasing cavity 662, and the second releasing cavity 662 has a space that allows the second damping position 672 to undergo elastic deformation.

Referring to FIG. 10, FIG. 11 and FIG. 12 simultaneously, in one embodiment, the foldable mobile terminal further includes a connecting piece 70 and two pressing blocks 71, wherein the connecting piece 70 spans the first rotating assembly 50 and the second rotating assembly 60, and the two ends of the connecting piece 70 are respectively connected to the first shell 31 and the second shell 32 by relative sliding through a pressing block 71. The length difference change generated during the rotation of the first shell 31 and the second shell 32 is absorbed by the first rotating assembly 50 and the second rotating assembly 60 in the folding mechanism 20 sliding and retracting relative to the first shell 31 and the second shell 32, respectively, so that the appearance of the foldable mobile terminal is consistent and complete during the folding and unfolding process, and by providing the connecting piece 70, the first shell 31 and the second shell 32 can be prevented from being overstretched, and the flexible display screen 10 can be prevented from being stretched and damaged.

Meanwhile, referring to FIG. 16 , the first end 701 of the connecting piece 70 is provided with a first elongated hole 703, the second end 702 of the connecting piece 70 is provided with a second elongated hole 704, the pressing block 71 passes through the first elongated hole 703 and is fixedly connected to the first housing 31, and another pressing block 71 passes through the second elongated hole 704 and is fixedly connected to the second housing 32. When the first rotating assembly 50 is extended relative to the first housing 31 and the second rotating assembly 60 is extended relative to the second housing 32, the connecting piece 70 moves relative to the pressing block 71 along the extending direction of the first and second elongated holes 703 and 704, that is, moves relative to the first and second housings 31 and 32. As shown in FIG. 12 , when the foldable mobile terminal is in the unfolded state, the outer ends of the first and second elongated holes 703 of the connecting piece 70, that is, the ends away from the first rotating assembly 50 and the second rotating assembly 60, respectively, abut against the first housing 31 and the second housing 32, so that the first housing 31 and the second housing 32 cannot continue to move away from each other, thereby preventing the first and second housings 31 and 32 from being overstretched. During the folding process, since the first and second elongated holes 703 have sliding space relative to the first and second shells 31 and 32, the connecting piece 70 can slide relative to the first and second shells 31 and 32 to adapt to the length change of the first and second shells 32 during the folding process.

The connecting piece 70 includes two connecting parts 705 located at the first end 701 and the second end 702 , and a supporting part 706 connected between the two connecting parts 705 . The connecting part 705 is used to connect to the pressing block 71 , and the supporting part 706 is used to support the flexible display screen 10 .

The pressing block 71 may be a fastener such as a screw, and the first and second elongated holes 703 and 704 are penetrated to connect the connecting piece 70 to the first shell 31 and the second shell 32. In one embodiment, the pressing block 71 is in the shape of a square block, and is pressed on the first end 701 and the second end 702 of the connecting piece 70. The pressing block 71 and the first and second elongated holes 703 and 704 are penetrated by another fastener, and locked on the first and second shells 31 and 32. For example, a first matching position 314 is formed on the first front shell 311, and the pressing block 71 slidably connects the first end 701 of the connecting piece 70 to the first matching position 314 of the first front shell 311. Correspondingly, a second matching position 324 is formed on the second front shell 321, and another pressing block 71 slidably connects the second end 702 of the connecting piece 70 to the second matching position 324 of the second front shell 321.

In some embodiments, the support portion 706 is bent at the intersection with the two connecting portions 705. As shown in FIG. 12 , the first matching position 314 and the second matching position 324 are both recessed to match the bend on the connecting piece 70 and also to accommodate the corresponding pressing block 71.

The connecting sheet 70 is provided with perforations 700 spaced apart from each other. In some embodiments, the perforations 700 are provided on the supporting portion 706, and these perforations 700 make the connecting sheet 70 easier to bend, so that the connecting sheet 70 can better fit the first rotating assembly 50 and the second rotating assembly 60, and avoid wrinkling of the connecting sheet 70 and affecting the supporting effect of the flexible display screen 10.

In some embodiments, a fixing structure 707 connected to the support bar 26 is further provided on the support portion 706. The fixing structure 707 may be a welding hole, and after the connecting piece 70 crosses the support bar 26, it may be fixedly connected to the support bar 26 by welding.

In one embodiment, there are two connecting pieces 70 . It can be understood that in other embodiments, the number of connecting pieces 70 can be increased or decreased as needed.

10 and 11 , in one embodiment, the foldable mobile terminal further includes a decorative block 72, which is located at both ends of the folding mechanism 20 in the Z-axis direction and in the gap between the first shell 31 and the second shell 32, and is used to shield the end structure of the folding mechanism 20 from being exposed and affecting the appearance.

Referring to Figures 11, 13 and 14 at the same time, a first connecting position 315 is provided on the first front shell 311, and a second connecting position 325 is provided on the second front shell 321. The decorative block 72 is connected to the first connecting position 315 of the first front shell 311 and the second connecting position 325 of the second front shell 321, and is located at both ends of the first slide plate 51 and the second slide plate 61 in the Z-axis direction.

Referring to FIG. 17 and FIG. 18 at the same time, the surface of the decorative block 72 on one side facing the flexible display screen 10 is roughly flat to facilitate the mounting of the flexible display screen 10. The surface of the decorative block 72 on one side facing away from the flexible display screen 10 forms a connection structure with the first front shell 311 and the second front shell 321, such as a convex column 721. A plurality of ribs 722 are also formed on the surface of the decorative block 72 on one side facing away from the flexible display screen 10. When the foldable mobile terminal is in an unfolded state, the decorative block 72 is in a naturally unfolded state, and the spacing between two adjacent ribs 722 gradually increases in the direction away from the flexible display screen 10. When the decorative block 72 is bent, that is, when the foldable mobile terminal is in a folded state, the adjacent ribs 722 fit each other.

As shown in FIGS. 10 and 11 , the first housing 31 is provided with a spaced first notch 316. In one embodiment, as shown in FIGS. 14 and 15 , the first notch 316 is provided on a side of the first front housing 311 adjacent to the first rotating assembly 50. The first slide plate 51 is provided with a first latching tooth 511 corresponding to the first notch 316 of the first housing 31. When the foldable mobile terminal switches between the folded and unfolded states, the first slide plate 51 is accommodated in the first housing 31 to varying degrees. By providing corresponding latching teeth and notches on the first housing 31 and the first slide plate 51, the vacant area formed between the first housing 31 and the first slide plate 51 can be reduced, thereby more stably supporting the flexible display screen 10 and preventing the flexible display screen 10 from being partially deformed by force and causing functional damage.

In one embodiment, as shown in FIG. 4 and FIG. 6 , the first slide plate 51 includes a first substrate 510, and the first latching teeth 511 are formed on the first substrate 510. The first substrate 510 is located between the first front shell 311 and the first rear shell 312, and can slide and retract between the first front shell 311 and the first rear shell 312. The first latching teeth 511 and the first front shell 311 are located in the same plane, and the plane is parallel to the plane defined by the XZ axis. The first latching teeth 511 and the first front shell 311 are located in the same plane for supporting the flexible display screen 10 together.

It can be understood that a corresponding first notch is formed between two adjacent first teeth 511 on the first slide plate 51, and a corresponding first tooth is formed between two adjacent first notches 316 on the first front shell 311. The first tooth 511 on the first slide plate 51 corresponds to the first notch 316 on the first front shell 311, and the first notch on the first slide plate 51 corresponds to the first tooth on the first front shell 311.

The second housing 32 is provided with a spaced second notch 326. In one embodiment, as shown in FIG. 14 and FIG. 15, the second notch 326 is provided on a side of the second front housing 321 adjacent to the second rotating assembly 60. The second slide plate 61 is provided with a second latch 611 corresponding to the second notch 326 of the second housing 32. When the foldable mobile terminal switches between the folded and unfolded states, the second slide plate 61 is accommodated in the second housing 32 to varying degrees. By providing corresponding latches and notches on the second housing 32 and the second slide plate 61, the vacant area formed between the second housing 32 and the second slide plate 61 can be reduced, thereby more stably supporting the flexible display screen 10 and preventing the flexible display screen 10 from being partially deformed by force and causing functional damage.

In one embodiment, as shown in FIG. 4 and FIG. 6 , the second sliding plate 61 includes a second substrate 610, and the second latching teeth 611 are formed on the second substrate 610. The second substrate 610 is located between the second front shell 321 and the second rear shell 322, and can slide and retract between the second front shell 321 and the second rear shell 322. The second latching teeth 611 and the second front shell 321 are located in the same plane, which is parallel to the plane defined by the XZ axis, and are used to jointly support the flexible display screen 10.

It can be understood that a corresponding second notch is formed between two adjacent second latching teeth 611 on the second slide plate 61, and a corresponding second latching tooth is formed between two adjacent second notches 326 on the second front shell 321. The second latching tooth 611 on the second slide plate 61 corresponds to the second notch 326 on the second front shell 321, and the second notch on the second slide plate 61 corresponds to the second latching tooth on the second front shell 321.

As shown in FIG. 4 , a gap 512 is defined between the first latching teeth 511 on the first slide plate 51 and the second latching teeth 611 on the second slide plate 61 , and the support bar 26 at least partially fills the gap 512 .

As shown in Figures 4 and 6, the first latch teeth 511 on the first slide plate 51 are connected to each other at one end away from the first shell 31 to form a first support beam 513, and the second latch teeth 611 on the second slide plate 61 are connected to each other at one end away from the second shell 32 to form a second support beam 613, and the support bar 26 is at least partially placed on the first support beam 513 and the second support beam 613.

As shown in Figure 13, the foldable mobile terminal also includes a first roller 58 and a first spring 59, which are arranged between the first rotating component 50 and the first shell 31. The first rotating component 50 is provided with a first groove 514. When the first rotating component 50 slides and retracts relative to the first shell 31, the first roller 58 can enter or disengage from the first groove 514, so that the foldable mobile terminal has a sense of being folded into place.

In some embodiments, the first roller 58 and the first spring 59 may be disposed between the first slide plate 51 and the first rear shell 312. In other embodiments, the first roller 58 and the first spring 59 may be disposed between the first slide plate 51 and the first front shell 311. In the embodiments shown in FIGS. 4 and 13 , the first groove 514 is formed on a side wall of the first latching tooth 511 of the first slide plate 51, and the first groove 514 faces an adjacent first latching tooth 511 on the first substrate 510.

As shown in Figures 13 and 15, the first notch 316 is recessed away from the corresponding first latching tooth 511 to form a first cavity 317, and the first roller 58 and the first spring 59 are accommodated in the first cavity 317. The first spring 59 presses against the first roller 58 so that the first roller 58 is at least partially exposed from the first cavity 317, so that the first roller 58 and the side wall of the first latching tooth 511 are elastically abutted.

Further, the extension length of the first latching teeth 511 forming the first groove 514 toward the first housing 31 is greater than the extension length of the other first latching teeth 511 toward the first housing 31 .

In some embodiments, the first roller 58 and the first spring 59 include at least two groups, and the two opposite side walls of the first latching tooth 511 are formed with first grooves 514 matching the first roller 58. Correspondingly, the first notch 316 is also recessed away from the corresponding first latching tooth 511 to form two first cavities 317, and each first cavity 317 is used to accommodate a group of first rollers 58 and first springs 59.

In some embodiments, two first grooves 514 are formed on the side wall of the first latching tooth 511 corresponding to the two extreme positions of the first slide plate 51. For example, one of the extreme positions is located at the end of the first latching tooth 511 close to the first housing 31, and the other extreme position is located at the junction of the first latching tooth 511 and the first crossbeam 513. When the foldable mobile terminal is in the folded state and the unfolded state, the first roller 58 enters the first grooves 514 located at the two extreme positions respectively, thereby generating a sense of being unfolded or folded in place.

The foldable mobile terminal also includes a second roller 68 and a second spring 69, which are arranged between the second rotating component 60 and the second shell 32. A second groove 614 is arranged on the second rotating component 60. When the second rotating component 60 slides and retracts relative to the second shell 32, the second roller 68 can enter or escape from the second groove 614, so that the foldable mobile terminal has a sense of unfolding into place.

In some embodiments, the second roller 68 and the second spring 69 may be disposed between the second slide plate 61 and the second rear shell 322. In other embodiments, the second roller 68 and the second spring 69 may be disposed between the second slide plate 61 and the second front shell 321. In the embodiments shown in FIGS. 4 and 13 , the second groove 614 is formed on a side wall of the second latching tooth 611 of the second slide plate 61, and the second groove 614 faces an adjacent second latching tooth 611 on the second substrate 610.

As shown in FIGS. 13 and 15 , the second notch 326 is recessed away from the corresponding second latching tooth 611 to form a second cavity 327, and the second roller 68 and the second spring 69 are accommodated in the second cavity 327. The second spring 69 abuts against the second roller 68 so that the second roller 68 is at least partially exposed from the second cavity 327, so that the second roller 68 and the side wall of the second latching tooth 611 are elastically abutted.

Further, the extension length of the second latching teeth 611 forming the second groove 614 toward the second housing 32 is greater than the extension length of the other second latching teeth 611 toward the second housing 32 .

In some embodiments, the second roller 68 and the second spring 69 include at least two groups, and the two opposite side walls of the second latch 611 are formed with second grooves 614 matching the second roller 68. Correspondingly, the second notch 326 is also recessed away from the corresponding second latch 611 to form two second cavities 327, each of which is used to accommodate a group of second rollers 68 and second springs 69.

In some embodiments, two second grooves 614 are formed on the side wall of the second latch 611 corresponding to the two extreme positions of the second slide plate 61. For example, one of the extreme positions is located at the end of the second latch 611 close to the second housing 32, and the other extreme position is located at the junction of the second latch 611 and the second crossbeam 613. When the foldable mobile terminal is in the folded state and the unfolded state, the second roller 68 enters the second grooves 614 located at the two extreme positions respectively, thereby generating a sense of being unfolded or folded in place.

The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims (13)

1. A foldable mobile terminal, comprising:

a flexible display screen;

the shell assembly comprises a first shell and a second shell, and the flexible display screen is arranged on the first shell and the second shell; and

The folding mechanism comprises a first rotating assembly connected with the first shell and a second rotating assembly connected with the second shell, the first rotating assembly comprises a first sliding plate, a first rotating shaft, a first connecting rod and a first sliding block, the first sliding plate is at least partially contained in the first shell and can slide and stretch relative to the first shell, the first rotating shaft is arranged on the first sliding plate, the first sliding block is slidably sleeved on the first rotating shaft, the first end of the first connecting rod is rotationally connected with the first sliding block, the second end of the first connecting rod is provided with a first connecting column, and the second end of the first connecting rod is rotationally connected with the first shell through the first connecting column; the second rotating assembly comprises a second sliding plate, a second rotating shaft, a second connecting rod and a second sliding block, wherein at least part of the second sliding plate is accommodated in the second shell and can slide and stretch relative to the second shell, the second rotating shaft is arranged on the second sliding plate, the second sliding block is slidably sleeved on the second rotating shaft, the first end of the second connecting rod is rotationally connected with the second sliding block, a second connecting column is arranged at the second end of the second connecting rod, and the second end of the second connecting rod is rotationally connected with the second shell through the second connecting column.

2. The foldable mobile terminal of claim 1, wherein the folding mechanism further comprises a linkage connecting the first and second shafts, the linkage having first and second perforations disposed therein, the first shaft passing through the first perforation, the second shaft passing through the second perforation.

3. The foldable mobile terminal of claim 1, further comprising a first roller and a first spring, wherein the first slide plate is provided with a first groove, the first spring and the first roller are abutted against the first housing and the first slide plate, and the first roller can enter or leave the first groove when the first slide plate stretches relative to the first housing.

4. The foldable mobile terminal of claim 1, further comprising a second roller and a second spring, wherein the second slide plate is provided with a second groove, the second spring and the second roller are abutted against the second housing and the second slide plate, and the second roller can enter or leave the second groove when the second slide plate stretches relative to the second housing.

5. The foldable mobile terminal of claim 1, wherein the first rotating assembly further comprises a first bracket coupled to the first slide, the first rotating shaft being disposed on the first bracket, the first slider being located between the first bracket and the first slide; the second rotating assembly further comprises a second support connected with the second sliding plate, the second rotating shaft is arranged on the second support, and the second sliding block is located between the second support and the second sliding plate.

6. The foldable mobile terminal of claim 5, wherein the first rotating assembly further comprises a first spring piece arranged in the first bracket, and the first spring piece is provided with first clamping positions corresponding to two limit positions of the first slider respectively; the second rotating assembly further comprises a second elastic piece arranged in the second bracket, and second clamping positions are respectively arranged at two limit positions of the second elastic piece corresponding to the second sliding block.

7. The foldable mobile terminal of claim 1, wherein the first housing includes a first front case and a first rear case coupled to each other, the second housing includes a second front case and a second rear case coupled to each other, and the flexible display screen is disposed on the first front case and the second front case.

8. The foldable mobile terminal of claim 7, wherein the first front housing and the first slide plate are provided with a first latch and a first notch, respectively.

9. The foldable mobile terminal of claim 7, wherein the second front housing and the second slide plate are provided with a second latch and a second notch, respectively.

10. The foldable mobile terminal of claim 7, further comprising a connecting piece and two pressing pieces, wherein the connecting piece spans the first sliding plate and the second sliding plate, and two ends of the connecting piece are respectively connected to the first front shell and the second front shell in a sliding manner through a pressing piece, wherein the relative positions of the pressing pieces and the connecting piece are changed in the folding process of the first shell and the second shell.

11. The foldable mobile terminal of claim 7, further comprising a decorative block, the decoration block is connected with the first front shell and the second front shell and is positioned at two ends of the first sliding plate and the second sliding plate.

12. The foldable mobile terminal of claim 1, further comprising a support bar disposed in a gap between the first slide and the second slide for supporting the flexible display screen with the first slide and the second slide.

13. The foldable mobile terminal of claim 12, wherein the foldable mobile terminal comprises, the top surface of the supporting bar faces the flexible display screen and is a cambered surface.