CN206993161U - foldable mobile terminal - Google Patents

Abstract

The utility model relates to a collapsible mobile terminal, include: the display area of the flexible display screen is rectangular or rounded rectangle in the unfolded state; 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 and the second rotating assembly respectively comprise a sliding plate, a rotating shaft and a connecting rod, at least part of the sliding plate is accommodated in the shell and can slide and stretch relative to the shell, the rotating shaft is arranged on the sliding plate, the first end of the connecting rod is slidably hinged on the rotating shaft, and the second end of the connecting rod is rotatably connected with the shell. The folding mechanism enables the foldable mobile terminal to realize the unfolding and folding of the flexible display screen without damaging the appearance integrity of the foldable mobile terminal.

Description

foldable mobile terminal

technical field

The utility model relates to the technical field of electronic equipment, in particular to a foldable mobile terminal.

Background technique

The flexible display has a bendable performance, which makes it possible for an intelligent mobile terminal equipped with a flexible display, such as a smart phone, to switch between folded and unfolded states. When the mobile terminal is in the unfolded state, the side facing the user and the side facing away from the user are equal in length. However, in the folded state, there is a difference between the two sides of the original equal length due to the thickness of the mobile terminal itself, which requires a foldable The mobile terminal needs to adapt to changes in the length difference between the two sides in different states.

Utility model content

A technical problem to be solved by the utility model is how to make the foldable mobile terminal adapt to the dimensional changes of two relative sides due to its own thickness in different states.

A foldable mobile terminal, comprising:

A flexible display screen, the display area of the flexible display screen is in the shape of a rectangle or a rectangle with rounded corners in an unfolded state;

a case assembly comprising a first case and a second case on which the flexible display is disposed; and

The folding mechanism includes a first rotating assembly connected to the first casing and a second rotating assembly connected to the second casing, the first rotating assembly includes a first slide plate, a first rotating shaft and a first connecting rod, the The first sliding plate is at least partly housed in the first casing and can slide and expand relative to the first casing. The first rotating shaft is arranged on the first sliding plate, and the first end of the first connecting rod is slidably hinged on the first rotating shaft. On the top, the second end is rotatably connected with the first housing; the second rotating assembly includes a second slide plate, a second shaft and a second connecting rod, and the second slide plate is at least partially accommodated in the second shell and can be oppositely The second housing slides and expands, 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 rotationally connected with the second housing.

In one embodiment, the folding mechanism further includes a linkage connecting the first shaft and the second shaft, the linkage is provided with a first hole and a second hole, and the first shaft passes through the first hole , the second rotating shaft passes through the second through hole.

In one embodiment, it further includes a first roller and a first spring, a first groove is provided on the first slide, and the first spring and the first roller abut against the first casing and the first slide. On the other hand, when the first sliding plate expands and contracts relative to the first casing, the first roller can enter or leave the first groove.

In one embodiment, it further includes a second roller and a second spring, a second groove is provided on the second slide, and the second spring and the second roller abut against the second casing and the second slide. On the other hand, when the second sliding plate expands and contracts relative to the second casing, the second roller can enter or leave the second groove.

In one embodiment, the first rotating assembly further includes a first slider, the first slider is slidably sleeved on the first rotating shaft, and the first end of the first connecting rod rotates with the first slider. Connection; the second rotating assembly further includes a second slider, the second slider is slidably sleeved on the second rotating shaft, and the first end of the second connecting rod is rotationally connected with the second slider.

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

In one embodiment, the first rotating assembly further includes a first elastic piece arranged in the first bracket, and the first elastic piece is respectively provided with a first engagement position corresponding to the two limit positions of the first slider; The second rotating assembly further includes a second elastic piece disposed in the second bracket, and the second elastic piece is respectively provided with second engagement positions corresponding to the two limit positions of the second slider.

In one embodiment, the first housing 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 The screens are provided on the first front case and the second front case.

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

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

In one embodiment, it also includes a connecting piece and two pressing blocks, the connecting piece straddles the first slide plate and the second sliding plate, and the two ends of the connecting piece are relatively slidably connected to the first front shell and the second sliding plate through a pressing block respectively. On the second front shell, the relative positions of the pressure block and the connecting piece change during the folding process of the first shell and the second shell.

In one embodiment, it further includes a decorative block, the decorative block connects the first front case and the second front case, 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 an arc surface.

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

Description of drawings

FIG. 1 is a schematic perspective view 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 another angle of the foldable mobile terminal shown in FIG. 1 .

FIG. 4 is a perspective structural diagram 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 schematic front view of the folding mechanism shown in FIG. 4 .

FIG. 6 is a three-dimensional structural diagram 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 exploded schematic diagram of part of the structure in FIG. 7 .

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

Fig. 10 is a schematic perspective view of the three-dimensional structure of the foldable mobile terminal provided by an embodiment of the present invention after removing the flexible display screen.

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

FIG. 12 is a schematic cross-sectional view of line A-A in FIG. 11 .

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 after removing some elements in the folding mechanism.

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

Fig. 16 is a schematic structural view of the elastic sheet in the folding mechanism.

Fig. 17 is a structural schematic diagram of a decorative block.

Fig. 18 is a structural schematic view of another viewing angle of the decorative block.

FIG. 19 is a schematic perspective view of a foldable mobile terminal in a folded state according to an embodiment of the present invention.

FIG. 20 is a schematic perspective view of the three-dimensional structure of the foldable mobile terminal shown in FIG. 19 without the flexible display screen.

FIG. 21 is a perspective view of the structure of the folding mechanism shown in FIG. 4 in a folded state.

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

Fig. 23 is a schematic cross-sectional view of part of the structure of the 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 part of the foldable mobile terminal in a half-expanded state (or a half-folded state) according to an embodiment of the present invention.

Fig. 25 is a schematic cross-sectional view of a foldable mobile terminal in a folded state according to an embodiment of the present invention.

Detailed ways

As shown in FIG. 1 , FIG. 2 , FIG. 3 and FIG. 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 between the first shell 31 and the second shell 32. on the housing 32. The foldable mobile terminal shown in FIG. 1 is in an unfolded state, and the first housing 31 and the second housing 32 are symmetrical to the folding mechanism 20 . As shown in FIG. 19 , when the first casing 31 and the second casing 32 are rotated relative to the folding mechanism 20 and are fully folded, the flexible display screen 10 is outside the mobile terminal. As shown in FIG. 1 , in the unfolded state, the extension length of the shell assembly 30 toward the side of the flexible display screen 10 (the scale in the X-axis direction in FIG. 1 ) is different from the extension length of the side facing away from the flexible display screen 10 (Fig. 1 in the X-axis direction) is the same, and as shown in FIG. 19 , due to the thickness of the shell assembly 30 itself (the scale in the Y-axis direction in FIG. 1 ), in the folded state, the shell assembly 30 faces one side of the flexible display 10 The extension length of the side 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 casing 31 and the second casing 32 can adapt to the situation generated when switching between the unfolded state and the folded state. length difference.

The first case 31 includes a first front case 311 and a first rear case 312 combined with each other, and the second case 32 includes a second front case 321 and a second rear case 322 combined with each other. The way of combining can be screw lock, bonding, welding and so on. The flexible display screen 10 is disposed on the first front shell 311 and the second front shell 321 . The display area of the flexible display screen 10 may be in the shape of a rectangle or a rectangle with rounded corners in an unfolded state. There is a certain distance between the first front shell 311 and the first rear shell 312 in the direction of the Y axis. Similarly, there is also a certain distance between the second front shell 321 and the second rear shell 322 in the direction of the Y axis. The spacing provides space for placing power supply modules, communication modules and other components, and also provides space for the folding mechanism 20 to slide and expand relative to the first housing 31 and the second housing 32 .

There is also a certain distance between the first housing 31 and the second housing 32 in the X-axis direction, and the folding mechanism 20 is arranged within the distance between the first housing 31 and the second housing 32 in the X-axis direction, And at least part of the structure of the folding mechanism 20 is accommodated in the first housing 31 and the second housing 32 . The distance between the first housing 31 and the second housing 32 in the X-axis direction will change during the rotation of the first housing 31 and the second housing 32 around the folding mechanism 20, so that the distance between the first housing 31 and the second housing 32 will change 31. During the rotation of the second casing 32 around the folding mechanism 20, the folding mechanism 20 retracts into the first casing 31 and the second casing 32 to different degrees. Referring to FIG. 4 and FIG. 5 simultaneously, the folding mechanism 20 includes a first rotating assembly 50 and a second rotating assembly 60 . The first rotating assembly 50 is connected with the first housing 31, the first rotating assembly 50 is at least partially housed in the first housing 31 and can slide and expand relative to the first housing 31, the second rotating assembly 60 is connected with the second housing 32 connection, the second rotating assembly 60 is at least partially accommodated in the second housing 32 and can slide and expand relative to the second housing 32, and the first rotating assembly 50 slides and expands relative to the first housing 31 and the second rotating assembly 60 Sliding and stretching relative to the second shell 32 can make the first shell 31 and the second shell 32 adapt to the length difference generated when switching between the unfolded state and the folded state.

In one embodiment, the first rotating assembly 50 and the second rotating assembly 60 have the same structure, and the first rotating assembly 50 and the second rotating assembly 60 are along the central axis between the first rotating assembly 50 and the second rotating assembly 60 I-I ( FIG. 5 ) is symmetrically distributed, and the symmetrical opening and closing of the first housing 31 and the second housing 32 along the central axis I-I can be realized through the symmetrical arrangement of the first rotating assembly 50 and the second rotating assembly 60 .

Referring to FIG. 4 , FIG. 5 , FIG. 6 and FIG. 7 at the same time, the first rotating assembly 50 includes a first sliding plate 51 , a first rotating shaft 53 and a first connecting rod 54 . The first rotating shaft 53 is arranged on the first slide plate 51, the first end 541 of the first connecting rod 54 is slidably hinged on the first rotating shaft 53, the second end 542 of the first connecting rod 54 is connected to the first The housing 31 is rotatably connected. The first sliding plate 51 is at least partially accommodated in the first housing 31 and can slide and expand relative to the first housing 31 . During the symmetrical opening and closing process of the first housing 31 and the second housing 32, the first sliding plate 51 and the first rotating shaft 53 slide and expand relative to the first housing 31 together, and the second end 542 of the first connecting rod 54 is opposite to each other. The first housing 31 rotates, 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 at the same time. The extent to which the first sliding plate 51 is accommodated in the first casing 31 is changed to accommodate the difference in length generated during the symmetrical opening and closing of the first casing 31 and the second casing 32 .

In the embodiment shown in FIG. 2 and FIG. 3 , two first rotating shafts 53 and two first connecting rods 54 are arranged on the first slide plate 51 , and are vertically symmetrical about the middle position of the first slide plate 51 in the Z-axis direction. set up. In some other embodiments, the number of the first rotating shaft 53 and the first connecting rod 54 can be one or more, and different numbers of the first rotating shaft 53 and the first connecting rod 54 can realize the relative movement of the first slide plate 51 to the first sliding plate 51. A sliding expansion and contraction of the housing 31.

Referring to FIG. 4 , FIG. 5 , FIG. 6 and FIG. 7 at the same time, the second rotating assembly 60 includes a second sliding plate 61 , a second rotating shaft 63 and a second connecting rod 64 . The second rotating shaft 63 is arranged on the second slide plate 61, the first end 641 of the second connecting rod 64 is slidably hinged on the second rotating shaft 63, the second end 642 of the second connecting rod 64 is connected to the second The housing 32 is rotatably connected. The second sliding plate 61 is at least partially accommodated in the second housing 32 and can slide and expand relative to the second housing 32 . During the symmetrical opening and closing process of the first housing 31 and the second housing 32, the second sliding plate 61 and the second rotating shaft 63 slide and expand relative to the second housing 32 together, and the second end 642 of the second connecting rod 64 is opposite to the second housing 32. The second casing 32 rotates, 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 at the same time. The extent to which the second sliding plate 61 is accommodated in the second housing 32 is changed to accommodate the difference in length generated during the symmetrical opening and closing of the first housing 31 and the second housing 32 .

In the embodiment shown in FIG. 2 and FIG. 3 , two second rotating shafts 63 and two second connecting rods 64 are arranged on the second slide plate 61 , and are vertically symmetrical about the middle position of the second slide plate 61 in the Z-axis direction. set up. In some other embodiments, the number of the second rotating shaft 63 and the second connecting rod 64 can be one or more, and different numbers of the second rotating shaft 63 and the second connecting rod 64 can realize that the second sliding plate 61 is opposite to the second sliding plate 61. Two casings 32 slide and expand.

Referring to Fig. 8 and Fig. 9 at the same time, in one embodiment, the folding mechanism 20 further includes a linkage 22 connecting the first shaft 53 and the second shaft 63, and the linkage 22 is provided with a first through hole 221 and a second through hole 222 , the first rotating shaft 53 is passed through the first through hole 221 , and the second rotating shaft 63 is passed through the second through hole 222 . The linkage 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, with the connection of the linkage 22 , the first end 541 of the first connecting rod 54 is on the first shaft 53 The sliding on the second shaft 63 can drive the first end 641 of the second connecting rod 64 to slide on the second shaft 63, and vice versa.

The linkage 22 can synchronize 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, that is, the first sliding plate 51 can be moved relative to the first shell. The sliding expansion and contraction of the body 31 and the sliding expansion and contraction of the second sliding plate 61 relative to the second housing 32 are synchronized, so as to better realize the symmetrical opening and closing of the first housing 31 and the second housing 32 . Linkage piece 22 can be made of metal material, also can be made of plastic material.

In other embodiments, the function of the linkage 22 can be realized by other components, for example, an element that realizes the sliding hinge between the first connecting rod 54 and the first rotating shaft 53 and realizes the sliding of the second connecting rod 64 and the second rotating shaft 63 The hinged elements are integrally arranged, and the sliding hinged elements can also make 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 through the integrally arranged elements. Movement synchronization.

Referring to FIG. 7 , FIG. 8 and FIG. 9 at the same time, in one embodiment, the first rotating assembly 50 further includes a first slider 52 through which the sliding of the first connecting rod 54 and the first rotating shaft 53 is realized. hinged. The first sliding block 52 is slidably sleeved on the first rotating shaft 53 , and the first end 541 of the first connecting rod 54 is rotationally connected with the first sliding block 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 sleeve 521 of the first slider 52, the second A slider 52 can either slide on the first rotating shaft 53 or rotate relative to the first rotating shaft 53 .

The first end 541 of the first link 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, 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 in the second position. in a positioning hole 523 .

The second rotating assembly 60 further includes a second sliding block 62 through which the sliding hinge of the second connecting rod 64 and the second rotating shaft 63 is realized. The second sliding block 62 is slidably sleeved on the second rotating shaft 63 , and the first end 641 of the second connecting rod 64 is rotationally connected with the second sliding block 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, the second The second sliding block 62 can either slide on the second rotating shaft 63 or rotate relative to the second rotating shaft 63 .

The first end 641 of the second link 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, the first end 641 of the second connecting rod 64 is provided with a second positioning post 643, and the second positioning post 643 is inserted in the second position. Two positioning holes 623.

In one embodiment, the linkage 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 at the first Between the two sleeves 521 of the slider 52 , the second arm portion 224 is disposed between the two sleeves 621 of the second slider 62 , the first rotating shaft 53 passes through the first through hole 221 , The second rotating shaft 63 passes through the second through hole 222 . The linkage 22 serves as a connection medium between the first slider 52 and the second slider 62 , so that the sliding of the first slider 52 on the first shaft 53 and the sliding of the second slider 62 on the second shaft 63 can be synchronized.

As shown in Fig. 4, Fig. 5, Fig. 6 and Fig. 7, in one embodiment, the first rotating assembly 50 further includes a first bracket 56, and the first rotating shaft 53 is arranged on the first on the skateboard 51. Further, the first bracket 56 can be fixed on the first sliding plate 51 by means of screw locking. The first rotating shaft 53 passes through the first bracket 56 , and the first sliding block 52 is disposed between the first bracket 56 and the first sliding plate 51 . By arranging the first bracket 56, the relative movement between 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 distance between the first bracket 56 and the first slide plate 51. In the space, the first end 541 of the first connecting rod 54 is prevented from detaching from the first sliding block 52 .

The implementation of the rotational connection between the second end 542 of the first connecting rod 54 and the first housing 31 may be that the second end 542 of the first connecting rod 54 is rotationally connected with the first front shell 311, or the first connecting rod The second end 542 of the connecting rod 54 is rotatably connected with the first rear shell 312 , or the second end 542 of the first connecting rod 54 is rotatably connected with the first front shell 311 and the first rear shell 312 at the same time. In one embodiment, as shown in FIG. 8 , FIG. 9 and FIG. 11 , the first front shell 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 , the first connecting post 544 is inserted into the first connecting hole 313 . Further, as shown in FIG. 13 and FIG. 15 , the first rotating assembly 50 also includes a first pressing piece 55 , the first pressing piece 55 is connected with the first front shell 311 , and the first pressing piece 55 The first connecting rod 54 is limited so that the first connecting rod 54 is located between the first pressing piece 55 and the first front shell 311 .

As shown in Fig. 4, Fig. 5, Fig. 6 and Fig. 7, in one embodiment, the second rotating assembly 60 further includes a second bracket 66, and the second rotating shaft 63 is arranged on the second on the skateboard 61. Further, the second bracket 66 can be fixed on the second sliding plate 61 by means of screw locking. The second rotating shaft 63 passes through the second bracket 66 , and the second sliding block 62 is disposed between the second bracket 66 and the second sliding plate 61 . By arranging the second bracket 66, the relative movement between 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 distance between the second bracket 66 and the second slide plate 61. In the space, the first end 641 of the second connecting rod 64 is prevented from detaching from the second sliding block 62 .

The implementation of the rotational connection between the second end 642 of the second connecting rod 64 and the second housing 32 may be that the second end 642 of the second connecting rod 64 is rotationally connected with the second front shell 321, or the second connecting rod The second end 642 of the link 64 is rotatably connected with the second rear shell 322 , or the second end 642 of the second connecting rod 64 is rotatably connected with the second front shell 321 and the second rear shell 322 at the same time. In one embodiment, as shown in FIG. 8 , FIG. 9 and FIG. 11 , the second front shell 321 is provided with a second connecting hole 323 , and the second end 642 of the second connecting rod 64 is provided with a second connecting column. 644 , the second connecting post 644 is inserted into the second connecting hole 323 . Further, as shown in FIG. 13 and FIG. 15 , the second rotating assembly 60 also includes a second pressing piece 65 , the second pressing piece 65 is connected with the second front shell 321 , and the second pressing piece 65 The second connecting rod 64 is limited so that the second connecting rod 64 is located between the second pressing piece 65 and the second front shell 321 .

As shown in FIGS. 8 and 9 , the folding mechanism 20 further includes bushings 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 on the first bracket 56 and also fixes the second rotating shaft 63 on 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, there are two first brackets 56 and two second brackets 66, each first bracket 56 is arranged on a corresponding end of the first sliding plate 51 along the Z-axis direction, and each second bracket 66 is arranged at the corresponding end of the second sliding plate 61 along the Z-axis direction.

In an embodiment, as shown in FIGS. 4 and 7 , the folding mechanism 20 further includes a support bar 26 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 supporting bar 26 can have a certain extension length in the Z-axis direction, so as to be disposed between the gap between the first sliding board 51 and the second sliding board 61 . In the embodiment provided with the first bracket 56 and the second bracket 66 , the support bar 26 can also be extended to the gap between the first bracket 56 and the second bracket 66 . The support bar 26 can support the flexible display screen 10 together with the first sliding board 51 , the second sliding board 61 , the first bracket 56 , the second bracket 66 , the first front case 311 , and the second front case 321 .

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

As shown in FIG. 8 and FIG. 9 , in another embodiment, the shaft 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 shaft sleeve 24 and/or the linkage 22 can be realized by means of welding or the like.

As shown in FIG. 20 , FIG. 23 , FIG. 24 and FIG. 25 , the top surface 261 of the support bar 26 faces the flexible display screen 10 and is an arc surface. When the foldable mobile terminal is in the half-folded state shown in FIG. 24 or the folded state shown in FIG. 25 , since the support bar 26 has an arc surface, it can prevent the first shell 31 and the second shell 32 from collapsing during the folding process. A sudden change occurs in the curvature of the middle profile, so as to better support 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 arranged on the first sliding plate 51, and the first elastic piece 57 The two limit positions in the sliding direction of the first end 541 of the rod 54 are respectively provided with first engaging positions 571 . In the embodiment with the first bracket 56 , the first elastic piece 57 is fixed on the first sliding plate 51 through the first bracket 56 , and the first elastic piece 57 is arranged in the first bracket 56 .

The two first engagement positions 571 of the first elastic piece 57 correspond to 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 arbitrarily, so that the position of the first slide plate 51 relative to the first housing 31 can be stabilized, that is, the foldable mobile terminal can be kept relatively stably in the folded or unfolded state.

In one embodiment, the first positioning column 543 on the first end 541 of the first connecting rod 54 extends through opposite sides of the first end 541, wherein one end of the first positioning column 543 is connected to the first slider The first positioning hole 523 on the first positioning post 523 fits, and the other end of the first positioning post 543 is passed through the first engaging position 571 of the first elastic piece 57 . The first engaging position 571 sandwiches the first positioning post 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 elastic piece 57 , wherein the first end 541 of the first connecting rod 54 is bounded by the first engaging position 571 . When sliding toward the first damping position 572, the resistance becomes larger. The increased resistance can be achieved by the fact that the clamping force applied to the first positioning post 543 by the first damping position 572 is greater than the clamping force applied to the first positioning post 543 by the first engaging position 571 . For example, the first elastic piece 57 can be waist-shaped with one end open and one end closed, two first engaging positions 571 are formed at both ends of the first elastic piece 57, and a first damping position 572 is formed in the middle of the first elastic piece 57. The gap for the first positioning post 543 in the first damping position 572 is smaller than the gap for the first positioning post 543 in the first engaging position 571, so when the first engaging position 571 leads to the first damping position In the process of 572, the resistance received by the first connecting rod 54 becomes larger. By arranging the first elastic piece 57 in this way, when the first housing 31 and the second housing 32 of the foldable mobile terminal are rotated, there is more damping feeling.

In some other embodiments, the first elastic sheet 57 may also be in a closed ring shape. Further, in some embodiments, the first elastic piece 57 can be in the shape of two separate strips, and the two ends of the two separated strip-shaped elastic pieces can be fixed on the first bracket 56 or other elements (or in other forms). The sliding plate 51 provides different resistances at different positions of the first connecting rod 54 along the sliding path of the first rotating shaft 53 .

As shown in FIG. 9 , the first bracket 56 is provided with a first receiving cavity 560 , and the first elastic piece 57 is accommodated in the first receiving cavity 560 . After the first bracket 56 is fixed on the first sliding plate 51 , the first sliding plate 51 closes the first receiving cavity 560 so that the first elastic piece 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 piece 57 , and a first releasing cavity 562 located between the two first positioning cavities 561 . The space in the first release cavity 562 is larger than the space in the first positioning cavity 561 , and after the first engaging position 571 is placed in the first positioning cavity 561 , the first engaging position 571 is fixed and cannot be moved. The first damping position 572 located between the two first engaging positions 571 is correspondingly placed in the first release cavity 562 , and the first release cavity 562 has a space for elastically deforming the first damping position 572 .

In one embodiment, the second rotating assembly 60 further includes a second elastic piece 67 arranged on the second sliding plate 61 , and the second elastic piece 67 is located at two ends of the sliding direction of the first end 641 of the second connecting rod 64 . The limit positions are respectively provided with second engaging positions 671 . In the embodiment with the second bracket 66 , the second elastic piece 67 is fixed on the second sliding plate 61 through the second bracket 66 , and the second elastic piece 67 is arranged in the second bracket 66 .

The two second engagement positions 671 of the second elastic piece 67 correspond to 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 link 64 from changing randomly, so that the position of the second sliding plate 61 relative to the second housing 32 can be stabilized, that is, the foldable mobile terminal can be kept relatively stably in the folded or unfolded state.

In one embodiment, the second positioning post 643 on the first end 641 of the second connecting rod 64 extends through opposite sides of the first end 641, wherein one end of the second positioning post 643 is connected to the second sliding block. The second positioning hole 623 on the second positioning post 623 fits, and the other end of the second positioning post 643 is passed through the second engaging position 671 of the second elastic piece 67 . The second engaging position 671 sandwiches the second positioning column 643 to form a certain clamping force on the second connecting rod 64 .

Referring to Fig. 4, Fig. 5 and Fig. 21, Fig. 22 at the same time, Fig. 5 shows that the folding mechanism 20 is in the unfolded state, and the second positioning post 643 formed on the first end 641 of the second connecting rod 64 passes through one of the first In the second engaging position 671 , FIG. 22 shows that the folding mechanism 20 is in the folded state, and the second positioning post 643 formed on the first end 641 of the second connecting rod 64 passes through 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 elastic piece 67 , wherein the first end 641 of the second connecting rod 64 is bounded by the second engaging position 671 . When sliding toward the second damping position 672, the resistance becomes larger. The increased resistance can be achieved by the fact that the clamping force applied to the second positioning post 643 by the second damping position 672 is greater than the clamping force applied to the second positioning post 643 by the second locking position 671 . For example, the second elastic piece 67 can be waist-shaped with one end open and one end closed, two second engaging positions 671 are formed at both ends of the second elastic piece 67, and a second damping position 672 is formed in the middle of the second elastic piece 67. The gap for the second positioning post 643 in the second damping position 672 is smaller than the gap for the second positioning post 643 in the second engaging position 671, so when the second engaging position 671 leads to the second damping position In the process of 672, the resistance received by the second connecting rod 64 becomes larger. By arranging the second elastic piece 67 in this way, when the first casing 31 and the second casing 32 of the foldable mobile terminal are rotated, there is more damping feeling.

In some other embodiments, the second elastic piece 67 may also be in a closed ring shape. Further, in some embodiments, the second elastic piece 67 can be in the shape of two separate strips, and the two ends of the two separated strip-shaped elastic pieces can be fixed on the second bracket 66 or other elements (or other forms). Different resistances are provided at different positions of the second connecting rod 64 along the sliding path of the second rotating shaft 63 on the sliding plate 61 .

As shown in FIG. 9 , the second bracket 66 is provided with a second receiving cavity 660 , and the second elastic piece 67 is accommodated in the second receiving cavity 660 . After the second bracket 66 is fixed on the second sliding plate 61 , the second sliding plate 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 locking 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 , and after the second locking position 671 is placed in the second positioning cavity 661 , the second locking position 671 is fixed and cannot be moved. The second damping position 672 located between the two second locking positions 671 is correspondingly placed in the second release cavity 662 , and the second release cavity 662 has a space for elastically deforming the second damping position 672 .

Referring to FIG. 10 , FIG. 11 and FIG. 12 at the same time, in one embodiment, the foldable mobile terminal further includes a connecting piece 70 and two pressing blocks 71 , and the connecting piece 70 straddles the first rotating assembly 50 and the second rotating assembly. assembly 60 , and the two ends of the connecting piece 70 are respectively slidably connected to the first housing 31 and the second housing 32 through a pressure block 71 . The difference in length produced during the rotation of the first housing 31 and the second housing 32 is caused by the first rotating assembly 50 and the second rotating assembly 60 in the folding mechanism 20 sliding relative to the first housing 31 and the second housing 32 respectively. Stretching and absorbing, so that the appearance of the foldable mobile terminal is consistent and complete during the folding and unfolding process, and by setting the connecting sheet 70, it can prevent the first shell 31 and the second shell 32 from being stretched excessively, avoiding the flexible display screen 10 Being stretched causes damage.

Referring to Fig. 16 at the same time, the first end 701 of the connecting piece 70 is provided with a first elongated hole 703, and the second end 702 of the connecting piece 70 is provided with a second elongated hole 704, and the pressing block 71 passes through the first The elongated hole 703 is fixedly connected to the first housing 31 , and the other pressing block 71 is fixedly connected to the second housing 32 through the second elongated hole 704 . When the first rotating assembly 50 expands and contracts relative to the first housing 31 and the second rotating assembly 60 expands and contracts relative to the second housing 32, the connecting piece 70 presses against each other along the extension direction of the first and second elongated holes 703 and 704. The block 71 moves, that is, moves relative to the first and second casings 31 and 32 . As shown in Figure 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 shell 31 and the second shell 32, so that the first shell 31 and the second shell 32 cannot continue to be relatively separated, and prevent the first and second shells 31, 32 from being stretched excessively. During the folding process, since the first and second elongated holes 703 have a sliding space relative to the first and second housings 31 and 32, the connecting piece 70 can be relatively slid relative to the first and second housings 31 and 32, so as 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 support part 706 connected between the two connecting parts 705, and the connecting part 705 is used for connecting with the pressing block 71 , the supporting portion 706 is used to support the flexible display screen 10 .

The pressing block 71 can be a fastener such as a screw, and the connecting piece 70 is connected to the first casing 31 and the second casing 32 after passing through the first and second elongated holes 703 and 704 . 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, and then the pressing block 71 and the first and second elongated parts are pierced by other fasteners. Holes 703, 704, and locked on the first and second shells 31, 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 intersection of the support portion 706 and the two connecting portions 705 forms a bend. As shown in FIG. 12 , recesses are formed at the first fitting position 314 and the second fitting position 324 to match the bends on the connecting piece 70 and also to accommodate the corresponding pressing block 71 .

The connecting sheet 70 is provided with through holes 700 spaced apart from each other. In some embodiments, the perforations 700 are provided on the supporting part 706, and these perforations 700 make the connecting piece 70 easier to bend, so that the connecting piece 70 can better fit the first rotating assembly 50 and the second rotating assembly 60, avoiding connection The sheet 70 is wrinkled and affects the supporting effect on the flexible display screen 10 .

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

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

Referring to Fig. 10 and Fig. 11, in one embodiment, the foldable mobile terminal further includes a decorative block 72, the decorative block 72 is located at both ends of the folding mechanism 20 in the direction of the Z axis, and is located at the first casing 31 and the second The gap between the shells 32 is used to cover the end structure of the folding mechanism 20 to avoid being exposed and affecting the appearance.

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

Referring to FIG. 17 and FIG. 18 at the same time, the surface of the decorative block 72 facing the flexible display 10 is substantially flat so as to facilitate loading of the flexible display 10 . The side surface of the decoration block 72 facing away from the flexible display screen 10 forms a connection structure with the first front case 311 and the second front case 321 , such as a protrusion 721 . A plurality of ribs 722 are formed on the surface of the decorative block 72 facing away from the flexible display screen 10 . When the foldable mobile terminal is unfolded, the decorative block 72 is in a naturally unfolded state, and the distance between two adjacent ribs 722 gradually increases along the direction away from the flexible display 10 . After the decorative block 72 is bent, when the foldable mobile terminal is in the folded state, adjacent ribs 722 are attached to each other.

As shown in FIG. 10 and FIG. 11 , the first shell 31 is provided with spaced first notches 316 . In one embodiment, as shown in FIG. 14 and FIG. 15 , the first notch 316 is disposed on a side of the first front shell 311 adjacent to the first rotating assembly 50 . The first sliding plate 51 is provided with a first locking tooth 511 corresponding to the first notch 316 of the first housing 31 . When the foldable mobile terminal switches between folded and unfolded states, the first slide plate 51 is accommodated in the first housing 31 to varying degrees. By setting corresponding latches and notches on the first housing 31 and the first sliding plate 51, the void area formed between the first housing 31 and the first sliding plate 51 can be reduced, thereby more stably supporting the flexible display screen 10. Avoid functional damage caused by local force deformation of the flexible display screen 10 .

In one embodiment, as shown in FIG. 4 and FIG. 6 , the first sliding plate 51 includes a first base plate 510 , and the first locking teeth 511 are formed on the first base plate 510 . The first base plate 510 is located between the first front shell 311 and the first rear shell 312 , and can slide and expand between the first front shell 311 and the first rear shell 312 . The first locking tooth 511 is located in the same plane as the first front shell 311 , and the plane is parallel to the plane defined by the XZ axis. The first locking 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 corresponding first gaps are also formed between two adjacent first locking teeth 511 on the first slide plate 51 , and corresponding first gaps are also formed between adjacent two first gaps 316 on the first front shell 311 . a first locking tooth. The first locking tooth 511 on the first sliding plate 51 corresponds to the first notch 316 on the first front shell 311 , and the first notch on the first sliding plate 51 corresponds to the first locking tooth on the first front shell 311 .

The second shell 32 is provided with spaced second notches 326 . In one embodiment, as shown in FIG. 14 and FIG. 15 , the second notch 326 is disposed on a side of the second front shell 321 adjacent to the second rotating assembly 60 . The second sliding plate 61 is provided with a second locking tooth 611 corresponding to the second notch 326 of the second housing 32 . When the foldable mobile terminal switches between folded and unfolded states, the second sliding board 61 is accommodated in the second housing 32 to varying degrees. By setting corresponding latches and notches on the second housing 32 and the second sliding plate 61, the void area formed between the second housing 32 and the second sliding plate 61 can be reduced, thereby more stably supporting the flexible display screen 10. Avoid functional damage caused by local force deformation of the flexible display screen 10 .

In one embodiment, as shown in FIG. 4 and FIG. 6 , the second sliding plate 61 includes a second base plate 610 , and the second locking teeth 611 are formed on the second base plate 610 . The second base plate 610 is located between the second front shell 321 and the second rear shell 322 , and can slide and stretch between the second front shell 321 and the second rear shell 322 . The second locking teeth 611 and the second front shell 321 are located in the same plane, which plane 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 corresponding second gaps are also formed between two adjacent second locking teeth 611 on the second slide plate 61 , and corresponding second gaps are also formed between adjacent two second gaps 326 on the second front shell 321 . a second locking tooth. The second locking tooth 611 on the second sliding plate 61 corresponds to the second notch 326 on the second front shell 321 , and the second notch on the second sliding plate 61 corresponds to the second locking tooth on the second front shell 321 .

As shown in FIG. 4 , there is a gap 512 between the first locking tooth 511 on the first sliding plate 51 and the second locking tooth 611 on the second sliding plate 61 , and the support bar 26 at least partially fills the gap. within 512.

As shown in FIG. 4 and FIG. 6 , the ends of the first teeth 511 on the first slide plate 51 away from the first housing 31 are connected to each other to form a first support beam 513 , and the second teeth on the second slide plate 61 The ends of the locking teeth 611 away from the second housing 32 are connected to each other 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 FIG. 13 , the foldable mobile terminal further includes a first roller 58 and a first spring 59 , and the first roller 58 and the first spring 59 are arranged between the first rotating assembly 50 and the first housing 31 Between, the first rotating assembly 50 is provided with a first groove 514, when the first rotating assembly 50 slides and expands relative to the first casing 31, the first roller 58 can enter or leave the first groove 514, This enables the foldable mobile terminal to have a feeling of being folded in place.

In some embodiments, the first roller 58 and the first spring 59 may be disposed between the first sliding 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 sliding plate 51 and the first front shell 311 . In the embodiment shown in FIG. 4 and FIG. 13 , the first groove 514 is formed on a side wall of the first locking tooth 511 of the first sliding plate 51 , and the first groove 514 faces the first substrate. 510 adjacent to a first locking tooth 511 .

As shown in FIG. 13 and FIG. 15 , the first notch 316 is recessed away from the corresponding first latch 511 to form a first cavity 317, and the first roller 58 and the first spring 59 are accommodated in the first cavity 317. Inside the first cavity 317. The first spring 59 presses against the first roller 58 so that the first roller 58 at least partially exposes the first cavity 317 , so that the first roller 58 elastically resists the sidewall of the first locking tooth 511 .

Further, the extension length of the first latch 511 forming the first groove 514 toward the first housing 31 is greater than the extension length of other first latches 511 toward the first casing 31 .

In some embodiments, the first roller 58 and the first spring 59 include at least two groups, and the opposite two sidewalls of the first locking tooth 511 form a first matching with the first roller 58 . groove 514 . Correspondingly, two first cavities 317 are recessed away from the corresponding first locking teeth 511 in the first notch 316, and each first cavity 317 is used to accommodate a set of first rollers 58 and a second set of rollers. A spring 59 .

In some embodiments, two first grooves 514 are formed on the sidewall of the first locking tooth 511 corresponding to the two limit positions of the first sliding plate 51 . For example, one extreme position is located at the end of the first locking tooth 511 close to the first housing 31 , and the other extreme position is located at the junction of the first locking tooth 511 and the first beam 513 . When the foldable mobile terminal is in the folded state and the unfolded state, the first rollers 58 respectively enter into the first grooves 514 at two limit positions, so as to produce a sense of being unfolded or folded in place.

The foldable mobile terminal further includes a second roller 68 and a second spring 69, the second roller 68 and the second spring 69 are arranged between the second rotating assembly 60 and the second housing 32, the second rotating The assembly 60 is provided with a second groove 614, and when the second rotating assembly 60 slides and expands relative to the second casing 32, the second roller 68 can enter or leave the second groove 614, so that the foldable mobile terminal has the function of unfolding. An in-place instant experience.

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

As shown in FIG. 13 and FIG. 15 , the second notch 326 is recessed away from the corresponding second latch 611 to form a second cavity 327 , and the second roller 68 and the second spring 69 are accommodated in the Inside the second cavity 327 . The second spring 69 presses against the second roller 68 so that the second roller 68 at least partially exposes the second cavity 327 , so that the second roller 68 elastically resists the sidewall of the second locking tooth 611 .

Further, the extension length of the second latch 611 forming the second groove 614 toward the second housing 32 is greater than the extension length of other second latches 611 toward the second casing 32 .

In some embodiments, the second roller 68 and the second spring 69 include at least two groups, and the opposite two side walls of the second latch 611 form a second roller 68 matching the second. groove 614 . Correspondingly, two second cavities 327 are recessed away from the corresponding second locking teeth 611 in the second notch 326 , and each second cavity 327 is used to accommodate a set of second rollers 68 and a second roller 68 . Two springs 69 .

In some embodiments, two second grooves 614 are formed on the sidewall of the second locking tooth 611 corresponding to the two limit positions of the second sliding plate 61 . For example, one extreme position is located at the end of the second locking tooth 611 close to the second housing 32 , and the other extreme position is located at the junction of the second locking tooth 611 and the second beam 613 . When the foldable mobile terminal is in the folded state and the unfolded state, the second rollers 68 respectively enter into the second grooves 614 at two limit positions, so as to produce a sense of being unfolded or folded in place.

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

The above-mentioned embodiments only express several implementation modes of the utility model, and the description thereof is relatively specific and detailed, but it should not be understood as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (14)

1. A foldable mobile terminal, comprising: A flexible display screen, the display area of the flexible display screen is in the shape of a rectangle or a rectangle with rounded corners in an unfolded state; a case assembly comprising a first case and a second case on which the flexible display is disposed; and The folding mechanism includes a first rotating assembly connected to the first casing and a second rotating assembly connected to the second casing, the first rotating assembly includes a first slide plate, a first rotating shaft and a first connecting rod, the The first sliding plate is at least partly housed in the first casing and can slide and expand relative to the first casing. The first rotating shaft is arranged on the first sliding plate, and the first end of the first connecting rod is slidably hinged on the first rotating shaft. On the top, the second end is rotatably connected with the first housing; the second rotating assembly includes a second slide plate, a second shaft and a second connecting rod, and the second slide plate is at least partially accommodated in the second shell and can be oppositely The second housing slides and expands, 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 rotationally connected with the second housing. 2. The foldable mobile terminal according to claim 1, wherein the folding mechanism further comprises a linkage connecting the first shaft and the second shaft, the linkage is provided with a first hole and a second hole, The first rotating shaft is passed through the first through hole, and the second rotating shaft is passed through the second through hole. 3. The foldable mobile terminal according to claim 1, further comprising a first roller and a first spring, a first groove is provided on the first slide, and the first spring and the first roller The column abuts against the first housing and the first sliding plate, and when the first sliding plate expands and contracts relative to the first housing, the first roller can enter or leave the first groove. 4. The foldable mobile terminal according to claim 1, further comprising a second roller and a second spring, a second groove is provided on the second slide, and the second spring and the second roller The column abuts against the second housing and the second sliding plate, and when the second sliding plate expands and contracts relative to the second housing, the second roller can enter or leave the second groove. 5. The foldable mobile terminal according to claim 1, wherein the first rotating assembly further comprises a first slider, the first slider is slidably sleeved on the first rotating shaft, and the first The first end of the connecting rod is rotatably connected to the first slider; the second rotating assembly also includes a second slider, the second slider is slidably sleeved on the second rotating shaft, and the first end of the second connecting rod One end is rotatably connected with the second slider. 6. The foldable mobile terminal according to claim 5, wherein the first rotating assembly further comprises a first bracket connected to the first slider, the first rotating shaft is arranged on the first bracket, and the first The slider is located between the first bracket and the first slider; the second rotating assembly also includes a second bracket connected to the second slider, the second rotating shaft is arranged on the second bracket, and the second slider is located on the second between the bracket and the second slide. 7. The foldable mobile terminal according to claim 6, wherein the first rotating assembly further comprises a first elastic piece arranged in the first bracket, and the first elastic piece corresponds to the two sides of the first slider. The limit positions are respectively provided with a first engaging position; the second rotating assembly also includes a second elastic piece arranged in the second bracket, and the second elastic piece is respectively provided with a second engaging position corresponding to the two extreme positions of the second slider. bit. 8. The foldable mobile terminal according to claim 1, wherein the first casing includes a first front casing and a first rear casing that are combined with each other, and the second casing includes a second casing that is combined with each other. A front shell and a second rear shell, the flexible display screen is arranged on the first front shell and the second front shell. 9 . The foldable mobile terminal according to claim 8 , wherein the first front case and the first slide plate are respectively provided with corresponding first locking teeth and first notches. 10 . The foldable mobile terminal according to claim 8 , wherein the second front case and the second slide plate are respectively provided with corresponding second locking teeth and second notches. 11 . 11. The foldable mobile terminal according to claim 8, further comprising a connecting piece and two pressure blocks, the connecting piece straddles the first sliding board and the second sliding board, and the two ends of the connecting piece respectively pass through A pressing block is relatively slidably connected to the first front shell and the second front shell, 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. 12. The foldable mobile terminal according to claim 8, further comprising a decorative block, the decorative block is connected to 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 . 13. The foldable mobile terminal according to claim 1, further comprising a support bar, the support bar is arranged in the gap between the first slide plate and the second slide plate, and is used to cooperate with the first slide plate and the second slide plate The two slides support the flexible display together. 14. The foldable mobile terminal according to claim 13, wherein the top surface of the support bar faces the flexible display screen and is an arc surface.