CN110769090B

CN110769090B - Folding mobile terminal

Info

Publication number: CN110769090B
Application number: CN201810848226.5A
Authority: CN
Inventors: 陈佳
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-07-27
Filing date: 2018-07-27
Publication date: 2021-03-30
Anticipated expiration: 2038-07-27
Also published as: CN110769090A

Abstract

The application relates to a folding mobile terminal, which comprises a shell assembly, a folding mechanism and a flexible display screen. The shell assembly comprises a first shell, a second shell, a first top plate, a second top plate, a first elastic piece and a second elastic piece, wherein the first top plate can rotate relative to the first shell, and the second top plate can rotate relative to the second shell. The folding mechanism is arranged between the first shell and the second shell, and the first shell can rotate relative to the second shell through the folding mechanism so as to realize the unfolding and folding of the shell assembly. The flexible display screen cover is arranged on the first shell and the second shell. When the folding mobile terminal is folded, the flexible display screen is hidden between the first shell and the second shell. In the unfolding and folding processes of the folding mobile terminal, the first elastic piece can enable the first top plate to be abutted to the bendable area of the flexible display screen, and the second elastic piece can enable the second top plate to be abutted to the bendable area. The folding mobile terminal can reliably support and protect the flexible display screen.

Description

Folding mobile terminal

Technical Field

The present application relates to the field of mobile terminal technology, and more particularly, to a foldable mobile terminal.

Background

The flexible display has a bendable property, which makes it possible to switch the mobile terminal (e.g., a smartphone) between a folded state and an unfolded state. The flexible display screen of the foldable mobile terminal can be bent and deformed in the unfolding and folding processes, and the flexible display screen is difficult to be reliably supported.

Disclosure of Invention

The embodiment of the application provides a folding mobile terminal to solve the problem that a flexible display screen is difficult to reliably support in the unfolding and folding processes of the folding mobile terminal.

A folder-type mobile terminal comprising:

the shell assembly comprises a first shell, a second shell, a first top plate, a second top plate, a first elastic piece and a second elastic piece, wherein the first top plate can rotate relative to the first shell, the second top plate can rotate relative to the second shell, the first elastic piece is respectively connected with the first top plate and the first shell, and the second elastic piece is respectively connected with the second top plate and the second shell;

the folding mechanism is arranged between the first shell and the second shell and is respectively connected with the first shell and the second shell, and the first shell can rotate relative to the second shell through the folding mechanism so as to realize the unfolding and folding of the shell assembly; and

the flexible display screen is covered on the first shell and the second shell; when the folding mobile terminal is folded, the flexible display screen is hidden between the first shell and the second shell; in the unfolding and folding processes of the folding mobile terminal, the first top plate can abut against a bendable region of the flexible display screen through the first elastic piece, and the second top plate can abut against the bendable region through the second elastic piece.

In one embodiment, a first sliding groove is formed in one side, facing the flexible display screen, of the first shell, and a second sliding groove is formed in one side, facing the flexible display screen, of the second shell; the folding mechanism comprises a cover plate and a folding assembly, the folding assembly comprises a third elastic part, a first sliding rod, a gear assembly, a second sliding rod and a fourth elastic part, the third elastic part is respectively connected with one end of the first sliding rod and the first shell, the first sliding rod is slidably arranged in the first sliding groove, the other end of the first sliding rod is connected with the gear assembly, the gear assembly is respectively connected with one end of the second sliding rod and the cover plate, the second sliding rod is slidably arranged in the second sliding groove, the other end of the second sliding rod is connected with the fourth elastic part, and the fourth elastic part is connected with the second shell; the shell assembly comprises a first baffle and a second baffle, the first baffle is arranged on the first sliding groove in a covering mode and is detachably connected with the first shell, and the second baffle is arranged on the second sliding groove in a covering mode and is detachably connected with the second shell.

In one embodiment, the second baffle includes a main body portion and a rotating shaft, the main body portion and the second casing are connected through a screw thread, a shaft hole is formed in the end of the second top plate, and the rotating shaft is rotatably disposed in the shaft hole so that the second top plate can rotate around the second baffle.

In one embodiment, the second elastic member is a torsion spring having two free ends; the torsion spring is sleeved on the rotating shaft, one free end of the torsion spring is connected with the second top plate, and the other free end of the torsion spring is connected with the second shell.

In one embodiment, when the foldable mobile terminal is unfolded, a side of the first top panel facing the bendable region is flush with a side of the second top panel facing the bendable region.

In one embodiment, the first elastic element is a spring or an elastic column, one end of the first elastic element is connected with the first shell, and the other end of the first elastic element is connected with one side of the first top plate, which faces away from the bendable region.

In one embodiment, the number of the folding assemblies is two, wherein one folding assembly is connected to one end of the cover plate, and the other folding assembly is connected to the other end of the cover plate.

In one embodiment, the gear assembly includes a first worm, a worm wheel and a second worm, the first sliding rod is sleeved on the first worm, the first worm is rotatably connected with the cover plate, the worm wheel is respectively meshed with the first worm and the second worm, the second worm is rotatably connected with the cover plate, and the second sliding rod is sleeved on the second worm; in the folding process of the folding mobile terminal, the first shell can drive the first worm to rotate through the first slide bar, the third elastic piece pushes the first slide bar to slide in the first slide groove so as to drive the cover plate to move in the direction away from the bendable region, the first worm can drive the worm wheel to rotate, the worm wheel can drive the second worm to rotate, the second worm can drive the second shell to turn over through the second slide bar, and the fourth elastic piece pushes the second slide bar to slide in the second slide groove; the cover plate, the first top plate and the second top plate form an accommodating space for accommodating the bendable region; in the unfolding process of the folding mobile terminal, the first shell can drive the second shell to turn over through the folding mechanism, and the cover plate can move towards the direction close to the bendable area.

In one embodiment, the folding assembly includes a first shaft sleeve, a fifth elastic member, a stopping member and a stopping member, the first shaft sleeve and the stopping member are respectively sleeved on the first worm, the first shaft sleeve is respectively connected with the first worm and the first sliding rod in a sliding manner, the stopping member is fixedly connected with the cover plate, and two ends of the fifth elastic member are respectively connected with the stopping member and the first shaft sleeve; a plurality of first clamping grooves are formed in the clamping piece along the circumferential direction of the first worm, a first protrusion is arranged on the first shaft sleeve, and the first protrusion can be clamped in the first clamping grooves; the first sliding rod can drive the first worm to rotate through the first shaft sleeve, when the first worm rotates, the first shaft sleeve can slide and stretch along the axial direction of the first worm, and the first protrusion can enter the other first clamping groove from one first clamping groove.

In one embodiment, the folding assembly includes a second shaft sleeve and a sixth elastic member, the stopping member is further sleeved on the second worm, the second shaft sleeve is respectively connected with the second worm and the second sliding rod in a sliding manner, and two ends of the sixth elastic member are respectively connected with the stopping member and the second shaft sleeve; a plurality of second clamping grooves are formed in the clamping piece along the circumferential direction of the second worm, a second protrusion is arranged on the second shaft sleeve, and the second protrusion can be clamped in the second clamping grooves; the second sliding rod can drive the second worm to rotate through the second shaft sleeve, when the second worm rotates, the second shaft sleeve can slide and stretch along the axial direction of the second worm, and the second protrusion can enter the other second clamping groove from one second clamping groove.

In one embodiment, the first sleeve has a first end and a second end opposite to each other, and the first protrusion is located at the first end; the stopping member is provided with a positioning groove, one end of the fifth elastic member abuts against the second end, and the other end of the fifth elastic member is accommodated in the positioning groove and abuts against the stopping member.

In one embodiment, the cover plate comprises a bottom wall, and a first side wall and a second side wall which extend from two opposite edges of the bottom wall, wherein a groove is formed by the first side wall, the second side wall and the bottom wall; when the folding mobile terminal is unfolded, the first side wall is abutted with the first top plate, and the second side wall is abutted with the second top plate; when the folding mobile terminal is folded, the tail end of the first top plate is accommodated in the groove and abutted against the first side wall, and the tail end of the second top plate is accommodated in the groove and abutted against the second side wall.

In one embodiment, the first housing is provided with a first sinking groove, the second housing is provided with a second sinking groove, and the cover plate is slidably arranged in the first sinking groove and the second sinking groove; when the foldable mobile terminal is unfolded, the bottom wall is accommodated in the first sinking groove and the second sinking groove, and the bottom wall is hidden in the housing assembly by the first housing and the second housing; when the folding mobile terminal is folded, a part of the first side wall is accommodated in the first sinking groove, a part of the second side wall is accommodated in the second sinking groove, and the other part of the first side wall, the other part of the second side wall and the bottom wall are exposed out of the shell assembly.

According to the folding mobile terminal, in the unfolding and folding processes of the folding mobile terminal, the first top plate can be abutted to the bendable region through the first elastic piece, and the second top plate can be abutted to the bendable region through the second elastic piece, so that the flexible display screen can be reliably supported and protected.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a perspective view of a folded mobile terminal in a closed state according to an embodiment;

fig. 2 is a perspective view of another perspective view of the folder-type mobile terminal shown in fig. 1 in a closed state;

fig. 3 is a perspective view of a viewing angle of the folder-type mobile terminal shown in fig. 1 in an unfolded state;

fig. 4 is a perspective view of another viewing angle of the folder-type mobile terminal shown in fig. 3 in an unfolded state;

fig. 5 is an exploded view of the folder type mobile terminal shown in fig. 3;

fig. 6 is a partial view of a housing assembly of the folder-type mobile terminal shown in fig. 5;

fig. 7 is an enlarged schematic view of the folder type mobile terminal shown in fig. 5 at a;

fig. 8 is a partial view of a housing assembly of the folder-type mobile terminal shown in fig. 6 with a folder mechanism mounted thereon;

fig. 9 is a front view of the folder type mobile terminal shown in fig. 1;

fig. 10 is a sectional view of the folder-type mobile terminal of fig. 9 taken along B-B;

fig. 11 is an enlarged schematic view of the folder type mobile terminal C shown in fig. 10;

fig. 12 is a front view of the folder type mobile terminal shown in fig. 3;

fig. 13 is a sectional view of the folder-type mobile terminal of fig. 12 taken along D-D;

fig. 14 is a perspective view of the folding mechanism of the folding mobile terminal shown in fig. 3 in an unfolded state;

FIG. 15 is a perspective view of the folding mechanism of FIG. 14 in a closed position;

FIG. 16 is a perspective view of one perspective of a folding assembly of the folding mechanism of FIG. 14;

FIG. 17 is an exploded view of one perspective of the folding assembly of the folding mechanism of FIG. 16;

FIG. 18 is a perspective view of another perspective of the folding assembly of the folding mechanism shown in FIG. 16;

fig. 19 is an exploded view from another perspective of the folding assembly of the folding mechanism of fig. 18.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

As used herein, "terminal device" refers to a device capable of receiving and/or transmitting communication signals including, but not limited to, devices connected via any one or more of the following connections:

(1) via wireline connections, such as via Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connections;

(2) via a Wireless interface means such as a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter.

A terminal device arranged to communicate over a wireless interface may be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following electronic devices:

(1) satellite or cellular telephones;

(2) personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities;

(3) radiotelephones, pagers, internet/intranet access, Web browsers, notebooks, calendars, Personal Digital Assistants (PDAs) equipped with Global Positioning System (GPS) receivers;

(4) conventional laptop and/or palmtop receivers;

(5) conventional laptop and/or palmtop radiotelephone transceivers, and the like.

Referring to fig. 1 and 2, in one embodiment, the foldable mobile terminal 10 is a foldable smart phone. Referring to fig. 3 and 4 together, the folder-type mobile terminal 10 includes a housing assembly 20, a folding mechanism 30, and a flexible display 40. Referring to fig. 5 and 6, the housing assembly 20 includes a first housing 210 and a second housing 220, the folding mechanism 30 is disposed between the first housing 210 and the second housing 220 and connected to the first housing 210 and the second housing 220, respectively, the first housing 210 can rotate relative to the second housing 220 through the folding mechanism 30 to realize the unfolding and folding of the housing assembly 20, and thus the folding and unfolding of the folding mobile terminal 10. A flexible display 40 (OLED) is disposed between the first housing 210 and the second housing 220, and when the foldable mobile terminal 10 is folded, the flexible display 40 is hidden between the first housing 210 and the second housing 220. The flexible display 40 has a bendable characteristic, which can be used to display information and provide an interactive interface for a user, and the housing assembly 20 can provide support for the flexible display 40 and can protect the flexible display 40. In an embodiment, when the foldable mobile terminal 10 is unfolded, the displayable areas of the flexible display 40 are located on the same plane, and the displayable areas are rectangular or rounded rectangular, and the foldable mobile terminal 10 in the unfolded state can obtain a large screen display effect. In one embodiment, the portion of the flexible display 40 covering the folding mechanism 30 is provided as a bendable region 410, and the bendable region 410 can be bent and deformed during the unfolding and folding of the folding mobile terminal 10. It is understood that the bendable region 410 is disposed corresponding to the folding mechanism 30, and when the position of the folding mechanism 30 is changed, the position of the bendable region 410 is changed accordingly.

Referring to fig. 5, 6 and 7, the housing assembly 20 includes a first top plate 213, a second top plate 223, a first elastic member 215 and a second elastic member 225, the first top plate 213 being rotatable with respect to the first housing 210, the second top plate 223 being rotatable with respect to the second housing 220, the first elastic member 215 being connected to the first top plate 213 and the first housing 210, respectively, and the second elastic member 225 being connected to the second top plate 223 and the second housing 220, respectively. The first elastic member 215 can make the first top plate 213 abut against the bendable region 410 and the second elastic member 225 can make the second top plate 223 abut against the bendable region 410 during the unfolding and folding of the foldable mobile terminal 10, which can reliably support and protect the flexible display 40. Further, the first top plate 213 has a substantially rectangular thin plate shape, the second top plate 223 has a substantially rectangular thin plate shape, and when the folding mobile terminal 10 is unfolded, a side of the first top plate 213 facing the bendable region 410 is flush with a side of the second top plate 223 facing the bendable region 410. With the above arrangement, the bendable region 410 can be kept flat after being unfolded by the supporting function of the first top plate 213 and the second top plate 223 on the bendable region 410, so as to prevent the bendable region 410 from generating an uneven region.

Referring to fig. 6, 7 and 8, the first housing 210 has a first sliding slot 211 formed thereon, the second housing 220 has a second sliding slot 221 formed thereon, the first sliding slot 211 is located on a side of the first housing 210 facing the flexible display 40, and the second sliding slot 221 is located on a side of the second housing 220 facing the flexible display 40. The folding mechanism 30 includes a cover plate 310 and a folding assembly 320, the folding assembly 320 includes a third elastic member 321, a first sliding rod 322, a gear assembly 330, a second sliding rod 326 and a fourth elastic member 327, the third elastic member 321 is respectively connected to one end of the first sliding rod 322 and the first housing 210, the first sliding rod 322 is slidably disposed in the first sliding slot 211, the other end of the first sliding rod 322 is connected to the gear assembly 330, the gear assembly 330 is respectively connected to one end of the second sliding rod 326 and the cover plate 310, the second sliding rod 326 is slidably disposed in the second sliding slot 221, the other end of the second sliding rod 326 is connected to the fourth elastic member 327, and the fourth elastic member 327 is connected to the second housing 220. In an embodiment, the gear assembly 330 includes a first worm 331, a worm wheel 332, and a second worm 333 (refer to fig. 16), the first sliding rod 322 is sleeved on the first worm 331, and the first worm 331 is rotatably connected to the cover plate 310, the worm wheel 332 is respectively engaged with the first worm 331 and the second worm 333, the second worm 333 is rotatably connected to the cover plate 310, and the second sliding rod 326 is sleeved on the second worm 333.

In the process of folding the folding mobile terminal 10, the first housing 210 can drive the first worm 331 to rotate through the first sliding bar 322, and the third elastic member 321 can drive the first sliding bar 322 to slide in the first sliding slot 211 to drive the cover plate 310 to move in the direction away from the bendable region 410 of the flexible display 40, the first worm 331 can drive the worm wheel 332 to rotate, the worm wheel 332 can drive the second worm 333 to rotate, the second worm 333 can drive the second housing 220 to turn through the second sliding bar 326, and the fourth elastic member 327 can drive the second sliding bar 326 to slide in the second sliding slot 221. Referring to fig. 9, 10 and 11, the bendable region 410 of the flexible display 40 is bent during the folding process of the folding mobile terminal 10, and the cover plate 310, the first top plate 213 and the second top plate 223 form an accommodating space for accommodating the bendable region 410.

Referring to fig. 12 and 13, during the unfolding of the foldable mobile terminal 10, the first housing 210 can bring the second housing 220 to turn over by the folding mechanism 30, and the cover plate 310 can move to a direction close to the bendable region 410. Specifically, the rotation of the first worm 331 is in a forward direction during the folding process of the folding mobile terminal 10, during the unfolding process of the folding mobile terminal 10, the first housing 210 can drive the first worm 331 to rotate in a reverse direction through the first sliding bar 322, and the third elastic member 321 pulls the first sliding bar 322 to slide in the first sliding slot 211 to drive the cover plate 310 to move in a direction close to the bendable region 410 of the flexible display 40, the first worm 331 can drive the worm wheel 332 to rotate, the worm wheel 332 can drive the second worm 333 to rotate, the second worm 333 can drive the second housing 220 to turn through the second sliding bar 326, and the fourth elastic member 327 pulls the second sliding bar 326 to slide in the second sliding slot 221. The portion of the flexible display screen 40 covered on the first housing 210 is driven by the first housing 210, the portion of the flexible display screen 40 covered on the second housing 220 is driven by the second housing 220, and the bendable region 410 of the flexible display screen 40 is gradually flattened in the process of unfolding the foldable mobile terminal 10. In other embodiments, the folder-type mobile terminal 10 may be a tablet or the like.

In the folding process of the folding mobile terminal 10, the folding assembly 320 can drive the cover plate 310 to move, the cover plate 310, the first top plate 213 and the second top plate 223 can form a receiving space for receiving the bendable region 410 of the flexible display screen 40, and a length of a side of the folding mobile terminal 10 facing away from the flexible display screen 40 can be extended. The length of the side of the folder type mobile terminal 10 facing away from the flexible display 40 can be shortened during the unfolding of the folder type mobile terminal 10. The above structure can adapt to the size change of the side where the flexible display 40 is located and the side facing away from the flexible display 40 in different states, thereby facilitating the smooth unfolding and folding of the folding mobile terminal 10.

In an embodiment, the third elastic element 321 is a spring or an elastic column, and the elastic column may be a columnar structure made of a silicone material, a columnar structure made of a rubber material, or a columnar structure made of other elastic materials. When the folder-type mobile terminal 10 is unfolded, the third elastic member 321 is in a compressed state. During the folding process of the folding mobile terminal 10, the elastic potential energy of the third elastic element 321 is released to push the first sliding bar 322 to move in the first sliding slot 211, and further push the cover plate 310 to move away from the bendable region 410 of the flexible display 40 through the first sliding bar 322. The third elastic member 321 is compressed again during the folding of the folder-type mobile terminal 10. In an embodiment, the fourth elastic element 327 is a spring or an elastic column, and the structure of the fourth elastic element 327 may be the same as the structure of the third elastic element 321, and the description thereof is omitted. It is understood that the structure of the first sliding bar 322 may be the same as that of the second sliding bar 326, and the first sliding bar 322 and the second sliding bar 326 are disposed at two sides of the worm gear 332 in an axisymmetrical manner; the first worm 331 may have the same configuration as the second worm 333, and the first worm 331 and the second worm 333 are provided on both sides of the worm wheel 332 in axisymmetrical fashion. The above structure enables forces on both sides of the worm wheel 332 to be axisymmetrically distributed with respect to the worm wheel 332 during the unfolding and folding of the folding mobile terminal 10, which is beneficial to realize the smooth unfolding and folding of the folding mobile terminal 10.

Referring to fig. 5, 6 and 7 again, the housing assembly 20 may include a first baffle 214 and a second baffle 224, the first baffle 214 is covered on the first sliding groove 211 and detachably connected to the first housing 210, and the second baffle 224 is covered on the second sliding groove 221 and detachably connected to the second housing 220. The detachable connection may be in various manners, for example, the first baffle 214 may be detachably connected to the first housing 210 by a threaded structure, the first baffle 214 may also be detachably connected to the first housing 210 by a snap-fit manner, the second baffle 224 may be detachably connected to the second housing 220 by a threaded structure, and the second baffle 224 may also be detachably connected to the second housing 220 by a snap-fit manner. After the first sliding slot 211 is covered by the first blocking plate 214, the first sliding bar 322 can be limited, and the first sliding bar 322 and the third elastic element 321 are prevented from being separated from the first sliding slot 211 in the process of unfolding and folding the foldable mobile terminal 10. The second baffle 224 can limit the position of the second sliding rod 326 and the fourth elastic element 327, which is not described herein again.

Referring to fig. 7, the second blocking plate 224 includes a main body 2241 and a rotation shaft 2243 which are integrally formed, the main body 2241 is screwed with the second housing 220, a shaft hole 2231 is formed at a distal end of the second top plate 223, and the rotation shaft 2243 is rotatably disposed in the shaft hole 2231 so that the second top plate 223 can rotate around the second blocking plate 224. Above-mentioned structure can avoid setting up the axis of rotation structure on second casing 220, is favorable to the processing of second casing 220, is favorable to promoting the structural strength of pivot 2243, and is favorable to the equipment of second baffle 224, second casing 220, second elastic component 225 and second roof 223. The structure of the first baffle 214 may be the same as the structure of the second baffle 224, and the function of the first baffle 214 may be the same as that of the second baffle 224, which is not described in detail herein.

In the embodiment shown in fig. 7, the second elastic member 225 is a torsion spring, the torsion spring has two free ends, the torsion spring is sleeved on the rotation shaft 2243, one free end of the torsion spring is connected to the second top plate 223 and has a fixed position relative to the second top plate 223, and the other free end of the torsion spring is connected to the second housing 220 and has a fixed position relative to the second housing 220. When the foldable mobile terminal 10 is unfolded, the torsion spring exerts a pre-tightening force on the second top plate 223, so that the second top plate 223 abuts against and supports the bendable region 410. The torsion spring can maintain the second top plate 223 in contact with the bendable region 410 during the folding and unfolding of the folder type mobile terminal 10 to effectively support the bendable region 410. It is understood that the structure and action principle of the first elastic member 215 may be the same as those of the second elastic member 225, and will not be described herein.

In other embodiments, the first elastic member 215 may be a spring or an elastic column, one end of the first elastic member 215 is connected to the first housing 210, and the other end of the first elastic member 215 is connected to a side of the first top plate 213 facing away from the bendable region 410. When the foldable mobile terminal 10 is unfolded, the spring or the elastic column is in a compressed state, and a pre-tightening force can be generated on the first top plate 213, so that the first top plate 213 abuts against and supports the bendable region 410. The spring or the elastic post can keep the first top plate 213 in contact with the bendable region 410 during the folding and unfolding of the folder type mobile terminal 10 to effectively support the bendable region 410. It is understood that the second elastic member 225 may also be a spring or an elastic column, and the structure and action principle thereof are the same as those of the first elastic member 215, and thus the description thereof is omitted.

Referring to fig. 14 and 15, in an embodiment, the cover plate 310 includes a bottom wall 311, and a first side wall 313 and a second side wall 315 extending from two opposite edges of the bottom wall 311, and the first side wall 313, the second side wall 315 and the bottom wall 311 are enclosed to form a groove 317, referring to fig. 13, when the foldable mobile terminal 10 is unfolded, a side of the first top plate 213 facing away from the bendable region 410 abuts against the first side wall 313, and a side of the second top plate 223 facing away from the bendable region 410 abuts against the second side wall 315. The above structure can support the first top plate 213 by the first sidewall 313 and support the second top plate 223 by the second sidewall 315, which is beneficial to the reliable positioning of the first top plate 213 and the second top plate 223. When the folder type mobile terminal 10 is closed, referring to fig. 11, the end of the first top plate 213 is received in the groove 317 and abuts against the first sidewall 313, the end of the second top plate 223 is received in the groove 317 and abuts against the second sidewall 315, and the first top plate 213, the first sidewall 313, the bottom wall 311, the second sidewall 315 and the second top plate 223 define the range of the receiving space. The above arrangement can limit the first top plate 213 by the first side wall 313 and limit the second top plate 223 by the second side wall 315, so that the rotation range of the first top plate 213 and the second top plate 223 can be limited to prevent the first top plate 213 and the second top plate 223 from interfering with other components inside the folding mobile terminal 10 during the rotation process.

Referring to fig. 13, in an embodiment, the first housing 210 has a first sinking groove 217, the second housing 220 has a second sinking groove 227, and the cover plate 310 is slidably disposed in the first sinking groove 217 and the second sinking groove 227. When the foldable mobile terminal 10 is unfolded, the bottom wall 311 is received in the first sinking groove 217 and the second sinking groove 227, and the bottom wall 311 is hidden in the housing assembly 20 by the first housing 210 and the second housing 220. Referring to fig. 11, when the foldable mobile terminal 10 is folded, a portion of the first sidewall 313 is received in the first sinking groove 217, a portion of the second sidewall 315 is received in the second sinking groove 227, and another portion of the first sidewall 313, another portion of the second sidewall 315 and the bottom wall 311 are exposed from the housing assembly 20. With the above structure, the cover plate 310 can slide in the first sliding groove 211 and the second sliding groove 221, which facilitates the movement and the position limitation of the cover plate 310 on the housing assembly 20. Further, referring to fig. 10 and 11, the first housing 210 may include a first left end surface 218 and a first right end surface 219 that are opposite to each other, and the first sinking groove 217 extends through the first right end surface 219. The second housing 220 includes a second left end surface 228 and a second right end surface 229 that are opposite to each other, and the second sinking groove 227 penetrates through the second left end surface 228. Referring to fig. 13, when the folder-type mobile terminal 10 is unfolded, the first right end 219 abuts against the second left end 228. The above structure enables the folder type mobile terminal 10 to have a better appearance when unfolded and folded.

Referring to fig. 16 and 17, the first slide bar 322 may include a sliding portion 3221, a connecting portion 3223 and a rotating portion 3225 which are integrally formed, the sliding portion 3221 and the rotating portion 3225 are respectively connected to two ends of the connecting portion 3223, and referring to fig. 8, the rotating portion 3225 is connected to the first worm 331, the sliding portion 3221 is connected to the third elastic member 321, and the sliding portion 3221 and the connecting portion 3223 are slidably disposed in the first sliding groove 211. Referring to fig. 6, the first housing 210 is provided with a boss 212, the boss 212 is protruded into the first sliding groove 211, and when the sliding portion 3221 slides in the first sliding groove 211, the boss 212 can abut against the sliding portion 3221 to limit the sliding range of the sliding portion 3221. It is understood that the structure of the second sliding rod 326 may be the same as that of the first sliding rod 322, and the second sliding slot 221 may also be provided with a boss 212 for limiting the moving range of the second sliding rod 326, which is not described herein again.

Referring to fig. 15, 16 and 17, in an embodiment, the folding assembly 320 includes a first shaft sleeve 3281, a fifth elastic member 3283, a stopping member 3285 and a stopping member 3287, the first shaft sleeve 3281 and the stopping member 3285 are respectively sleeved on the first worm 331, the first shaft sleeve 3281 is respectively slidably connected with the first worm 331 and the first sliding rod 322, the stopping member 3287 is fixedly connected with the cover plate 310, and two ends of the fifth elastic member 3283 are respectively connected with the stopping member 3287 and the first shaft sleeve 3281. A plurality of first clamping grooves 3286 are formed in the clamping member 3285 along the circumferential direction of the first worm 331, a first protrusion 3282 is formed on the first collar 3281, and the first protrusion 3282 can be clamped in the first clamping groove 3286. The first slide bar 322 can drive the first worm 331 to rotate through the first shaft sleeve 3281, and when the first worm 331 rotates, the first shaft sleeve 3281 can slide and extend along the axial direction of the first worm 331, and the first protrusion 3282 can enter into another first slot 3286 from one first slot 3286. The first card slot 3286 and the first protrusion 3282 are matched to realize the pause of the first housing 210 at a specific angle, for example, the flexible display screen 40 can be paused at multiple positions of 0 degree, 90 degrees, 135 degrees, 180 degrees, etc. by adopting the above structure, and when the distribution of the first card slot 3286 is denser, the pause at more specific angles can be realized. The cooperation of the first card slot 3286 and the first projection 3282 can also give feedback on the user's feel. For example, when the first protrusion 3282 enters one first card slot 3286 from another first card slot 3286, a noticeable setback is generated, thereby facilitating an enhanced user experience.

Referring to fig. 18 and 19, the folding assembly 320 may include a second shaft sleeve 3291 and a sixth elastic member 3293, the locking member 3285 is further sleeved on the second worm 333, the second shaft sleeve 3291 is slidably connected to the second worm 333 and the second sliding rod 326, and two ends of the sixth elastic member 3293 are connected to the stop member 3287 and the second shaft sleeve 3291, respectively. A plurality of second clamping grooves 3295 are formed in the clamping piece 3285 along the circumferential direction of the second worm 333, a second protrusion 3292 is formed on the second shaft sleeve 3291, and the second protrusion 3292 can be clamped in the second clamping groove 3295. The second slide bar 326 can drive the second worm 333 to rotate through the second shaft sleeve 3291, and when the second worm 333 rotates, the second shaft sleeve 3291 can slide and stretch along the axial direction of the second worm 333, and the second protrusion 3292 can enter into another second slot 3295 from one second slot 3295. The arrangement of the second clamping groove 3295 and the second protrusion 3292 is also beneficial to achieving pause of a plurality of specific positions, feedback on hand feeling of a user can be given, and user experience is promoted. It is understood that the first boss 3281 and the second boss 3291 may have the same structure, the first protrusion 3282 may have the same structure as the second protrusion 3292, and the first locking groove 3286 may have the same structure as the second locking groove 3295, which facilitates symmetrical forces on both sides of the worm gear 332 to enable the folding mobile terminal 10 to be unfolded and folded smoothly.

Referring to fig. 17, the first sleeve 3281 has a first end 3284 and a second end 3289 that are opposite to each other, the first protrusion 3282 is located at the first end 3284, the stopping member 3287 has a positioning groove 3288, one end of the fifth elastic member 3283 abuts against the second end 3289, and the other end of the fifth elastic member 3283 is accommodated in the positioning groove 3288 and abuts against the stopping member 3287. The above arrangement facilitates the assembly and disassembly of the first boss 3281, the first worm 331 and the stopper 3287. It is understood that the position of the stop member 3287 corresponding to the sixth elastic member 3293 can also be provided with the same structure as the positioning groove 3288, so as to facilitate the assembly and disassembly of the second shaft sleeve 3291, the second worm 333 and the stop member 3287, which will not be described herein again. In one embodiment, the number of the folding members 320 is two, wherein one folding member 320 is connected to one end of the cover plate 310, and the other folding member 320 is connected to the other end of the cover plate 310. The above-described structure enables the folding mobile terminal 10 to be smoothly unfolded and folded. It is understood that the number of the folding assemblies 320 may be more than the third group, and will not be described herein.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A folder-type mobile terminal, comprising:

the folding mechanism is arranged between the first shell and the second shell and comprises a folding assembly, the folding assembly comprises a first sliding rod, a second sliding rod and a gear assembly, the first sliding rod is slidably arranged on the first shell, the second sliding rod is slidably arranged on the second shell, the first sliding rod and the second sliding rod are both connected to the gear assembly to realize linkage of the first sliding rod and the second sliding rod, and the first shell can rotate relative to the second shell through the folding mechanism to realize unfolding and folding of the shell assembly; and

the flexible display screen is covered on the first shell and the second shell; when the folding mobile terminal is folded, the flexible display screen is hidden between the first shell and the second shell; in the unfolding and folding processes of the folding mobile terminal, the first top plate can abut against a bendable region of the flexible display screen through the first elastic piece, the second top plate can abut against the bendable region through the second elastic piece, the first sliding rod slides relative to the first shell, and the second sliding rod slides relative to the second shell.

2. The folding mobile terminal according to claim 1, wherein a side of the first housing facing the flexible display screen is opened with a first sliding slot, and a side of the second housing facing the flexible display screen is opened with a second sliding slot; the folding mechanism comprises a cover plate, the folding assembly comprises a third elastic part and a fourth elastic part, the third elastic part is respectively connected with one end of the first sliding rod and the first shell, the first sliding rod is slidably arranged in the first sliding groove, the other end of the first sliding rod is connected with the gear assembly, the gear assembly is respectively connected with one end of the second sliding rod and the cover plate, the second sliding rod is slidably arranged in the second sliding groove, the other end of the second sliding rod is connected with the fourth elastic part, and the fourth elastic part is connected with the second shell; the shell assembly comprises a first baffle and a second baffle, the first baffle is arranged on the first sliding groove in a covering mode and is detachably connected with the first shell, and the second baffle is arranged on the second sliding groove in a covering mode and is detachably connected with the second shell.

3. The folder-type mobile terminal of claim 2, wherein the second cover includes a main body portion and a hinge, the main body portion is screwed to the second housing, the second top plate has a shaft hole at a distal end thereof, and the hinge is rotatably disposed in the shaft hole to allow the second top plate to rotate around the second cover.

4. The folder-type mobile terminal according to claim 3, wherein the second elastic member is a torsion spring having two free ends; the torsion spring is sleeved on the rotating shaft, one free end of the torsion spring is connected with the second top plate, and the other free end of the torsion spring is connected with the second shell.

5. The folder-type mobile terminal of claim 2, wherein a side of the first top panel facing the bendable region is flush with a side of the second top panel facing the bendable region when the folder-type mobile terminal is unfolded.

6. The folder-type mobile terminal according to claim 2, wherein the first elastic member is a spring or an elastic column, one end of the first elastic member is connected to the first housing, and the other end of the first elastic member is connected to a side of the first top board facing away from the foldable area.

7. The folder-type mobile terminal of claim 2, wherein the number of the folder assemblies is two, one of the folder assemblies being connected to one end of the cover plate, and the other of the folder assemblies being connected to the other end of the cover plate.

8. The folder-type mobile terminal according to claim 2, wherein the gear assembly comprises a first worm, a worm wheel and a second worm, the first sliding rod is sleeved on the first worm and the first worm is rotatably connected with the cover plate, the worm wheel is respectively meshed with the first worm and the second worm, the second worm is rotatably connected with the cover plate, and the second sliding rod is sleeved on the second worm; in the folding process of the folding mobile terminal, the first shell can drive the first worm to rotate through the first slide bar, the third elastic piece pushes the first slide bar to slide in the first slide groove so as to drive the cover plate to move in the direction away from the bendable region, the first worm can drive the worm wheel to rotate, the worm wheel can drive the second worm to rotate, the second worm can drive the second shell to turn over through the second slide bar, and the fourth elastic piece pushes the second slide bar to slide in the second slide groove; the cover plate, the first top plate and the second top plate form an accommodating space for accommodating the bendable region; in the unfolding process of the folding mobile terminal, the first shell can drive the second shell to turn over through the folding mechanism, and the cover plate can move towards the direction close to the bendable area.

9. The folder-type mobile terminal of claim 8, wherein the folder assembly comprises a first sleeve, a fifth elastic member, a latching member and a stopping member, the first sleeve and the latching member are respectively sleeved on the first worm, the first sleeve is respectively slidably connected with the first worm and the first sliding rod, the stopping member is fixedly connected with the cover plate, and two ends of the fifth elastic member are respectively connected with the stopping member and the first sleeve; a plurality of first clamping grooves are formed in the clamping piece along the circumferential direction of the first worm, a first protrusion is arranged on the first shaft sleeve, and the first protrusion can be clamped in the first clamping grooves; the first sliding rod can drive the first worm to rotate through the first shaft sleeve, when the first worm rotates, the first shaft sleeve can slide and stretch along the axial direction of the first worm, and the first protrusion can enter the other first clamping groove from one first clamping groove.

10. The folder-type mobile terminal according to claim 9, wherein the folder assembly includes a second shaft sleeve and a sixth elastic member, the latching member is further sleeved on the second worm, the second shaft sleeve is slidably connected to the second worm and the second sliding rod, and two ends of the sixth elastic member are connected to the stopping member and the second shaft sleeve, respectively; a plurality of second clamping grooves are formed in the clamping piece along the circumferential direction of the second worm, a second protrusion is arranged on the second shaft sleeve, and the second protrusion can be clamped in the second clamping grooves; the second sliding rod can drive the second worm to rotate through the second shaft sleeve, when the second worm rotates, the second shaft sleeve can slide and stretch along the axial direction of the second worm, and the second protrusion can enter the other second clamping groove from one second clamping groove.

11. The folder-type mobile terminal of claim 9, wherein the first sleeve has a first end and a second end opposite each other, the first protrusion being located at the first end; the stopping member is provided with a positioning groove, one end of the fifth elastic member abuts against the second end, and the other end of the fifth elastic member is accommodated in the positioning groove and abuts against the stopping member.

12. The folding mobile terminal according to any of claims 2 to 11, wherein the cover plate comprises a bottom wall, and a first side wall and a second side wall extending from two opposite edges of the bottom wall, and the first side wall, the second side wall and the bottom wall are enclosed to form a groove; when the folding mobile terminal is unfolded, the first side wall is abutted with the first top plate, and the second side wall is abutted with the second top plate; when the folding mobile terminal is folded, the tail end of the first top plate is accommodated in the groove and abutted against the first side wall, and the tail end of the second top plate is accommodated in the groove and abutted against the second side wall.

13. The foldable mobile terminal of claim 12, wherein the first housing defines a first sinking groove, the second housing defines a second sinking groove, and the cover is slidably disposed in the first sinking groove and the second sinking groove; when the foldable mobile terminal is unfolded, the bottom wall is accommodated in the first sinking groove and the second sinking groove, and the bottom wall is hidden in the housing assembly by the first housing and the second housing; when the folding mobile terminal is folded, a part of the first side wall is accommodated in the first sinking groove, a part of the second side wall is accommodated in the second sinking groove, and the other part of the first side wall, the other part of the second side wall and the bottom wall are exposed out of the shell assembly.