CN110769088A

CN110769088A - Folding mobile terminal

Info

Publication number: CN110769088A
Application number: CN201810847186.2A
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: 2020-02-07

Abstract

The application relates to a folding mobile terminal, which comprises a shell assembly, a folding mechanism and a flexible display screen. The housing assembly includes a first housing and a second housing. The folding mechanism comprises a cover plate and a folding assembly, and the folding assembly comprises a first worm, a worm wheel, a second worm, a first connecting rod and a second connecting rod. When the folding mobile terminal is folded, the flexible display screen is hidden between the first shell and the second shell. In the folding process of the folding mobile terminal, the first shell can drive the first worm to rotate through the first connecting rod, the first worm can drive the worm wheel to rotate, the worm wheel can drive the second worm to rotate, and the second worm can drive the second shell to turn over through the second connecting rod; in the unfolding process of the folding mobile terminal, the first shell can drive the second shell to turn over through the folding mechanism. The structure realizes linkage of the first shell and the second shell, and further the foldable mobile terminal is more convenient to unfold and fold.

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. In the process of unfolding and folding the mobile terminal, the two sides of the mobile terminal can not form linkage, and the use is inconvenient.

Disclosure of Invention

The technical problem solved by the application is how to enable the folding type mobile terminal to be unfolded and folded more conveniently.

A folder-type mobile terminal comprising:

a housing assembly including a first housing and a second housing;

the folding mechanism comprises a cover plate and a folding assembly, and the folding assembly comprises a first worm, a worm wheel, a second worm, a first connecting rod and a second connecting rod; the cover plate is positioned between the first shell and the second shell, the first worm and the second worm are connected to the cover plate, the first worm and the second worm can rotate relative to the cover plate, the worm wheel is positioned between the first worm and the second worm, and the worm wheel is meshed with the first worm and the second worm respectively, so that the first worm can drive the second worm to rotate; one end of the first connecting rod is connected with the first shell, the other end of the first connecting rod is connected with the first worm, one end of the first connecting rod is connected with the second shell, and the other end of the second connecting rod is connected with the second worm; 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 folding process of the folding mobile terminal, the first shell can drive the first worm to rotate through the first connecting rod, the first worm can drive the worm wheel to rotate, the worm wheel can drive the second worm to rotate, and the second worm can drive the second shell to turn over through the second connecting rod; in the unfolding process of the folding mobile terminal, the first shell can drive the second shell to turn over through the folding mechanism.

In one embodiment, the cover plate is strip-shaped, the first shell and the second shell are arranged in the width direction of the cover plate, and a first top wall is arranged at one end of the cover plate in the length direction; the folding assembly further comprises a stopping piece, the stopping piece is fixed on the cover plate, and the stopping piece is arranged opposite to the first top wall; two ends of the first worm and the second worm respectively penetrate through the first top wall and the first stop piece, so that the first worm and the second worm can rotate relative to the cover plate.

In one embodiment, the first shell is provided with a first sliding groove, and the second shell is provided with a second sliding groove;

the folding assembly comprises a first elastic piece and a second elastic piece, the first elastic piece is respectively connected with one end of the first connecting rod, which is far away from the first worm, and the first shell, and the first connecting rod is slidably arranged in the first sliding groove; the second connecting rod is slidably arranged in the second sliding groove, one end, far away from the second worm, of the second connecting rod is connected with the second elastic piece, and the second elastic piece is connected with the second shell;

in the folding process of the folding mobile terminal, the first shell can drive the first worm to rotate through the first connecting rod, and the first elastic piece pushes the first connecting rod to slide in the first sliding chute so as to drive the cover plate to move towards the direction away from the bendable area of the flexible display screen; when the second connecting rod drives the second shell to turn over, the second elastic piece pushes the second connecting rod to slide in the second sliding groove; the cover plate, the first shell and the second shell 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 first housing includes a first top plate and a third elastic member, the second housing includes a second top plate and a fourth elastic member, the first top plate is rotatably connected with the first housing, the second top plate is rotatably connected with the second housing, the third elastic member is respectively connected with the first top plate and the first housing, and the fourth elastic member is respectively connected with the second top plate and the second housing; in the process of unfolding and folding the foldable mobile terminal, the third elastic piece can enable the first top plate to be abutted against the bendable region, and the fourth elastic piece can enable the second top plate to be abutted against the bendable region.

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 third elastic member is a torsion spring having two free ends; one of the first shell and the first top plate is provided with a rotating shaft, and the other one of the first shell and the first top plate is provided with a shaft hole, wherein the rotating shaft is rotatably arranged in the shaft hole so as to enable the first top plate to be rotatably connected with the first shell; the torsion spring is sleeved on the rotating shaft, one free end of the torsion spring is connected with the first top plate, and the other free end of the torsion spring is connected with the first shell.

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 end of the first top plate is accommodated in the groove and abutted against the first side wall, the end of the second top plate is accommodated in the groove and abutted against the second side wall, and the first top plate, the first side wall, the bottom wall, the second side wall and the second top plate define the accommodating space.

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.

In one embodiment, the first shell comprises a first left end surface and a first right end surface which are arranged oppositely, and the first sinking groove penetrates through the first right end surface; the second shell comprises a second left end surface and a second right end surface which are arranged in an opposite manner, and the second sinking groove penetrates through the second left end surface; when the folding mobile terminal is unfolded, the first right end face is abutted to the first left end face.

In one embodiment, the first connecting rod includes a sliding portion, a connecting portion and a rotating portion, the sliding portion and the rotating portion are integrally formed, the sliding portion and the rotating portion are respectively connected to two ends of the connecting portion, the rotating portion is connected to the first worm, the sliding portion is connected to the first elastic member, and the sliding portion and the connecting portion are slidably disposed in the first sliding groove; the first shell is provided with a boss, and when the sliding part slides in the first sliding groove, the boss can be abutted against the sliding part to limit the sliding range of the sliding part.

In one embodiment, the folding assembly includes a first shaft sleeve, a fifth elastic 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 connecting 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 connecting 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 bulge can enter the other first clamping groove from the 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 connecting 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 connecting 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 bulge 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.

When the folding mobile terminal is folded and unfolded, the first shell drives the first worm to rotate through the first connecting rod, the first worm drives the second worm to rotate through the worm gear, and the second worm drives the second shell to turn over through the second connecting rod, so that linkage is formed between the first shell and the second shell, and the folding mobile terminal is very convenient to unfold and fold.

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

fig. 8 is a front view of the folder type mobile terminal shown in fig. 1;

fig. 9 is a sectional view of the folder-type mobile terminal of fig. 8 taken along a-a;

fig. 10 is an enlarged schematic view of the folder type mobile terminal B shown in fig. 9;

fig. 11 is a front view of the folder type mobile terminal shown in fig. 3;

fig. 12 is a sectional view of the folder-type mobile terminal of fig. 11 taken along C-C;

fig. 13 is a perspective view of the folding mechanism of the folding mobile terminal shown in fig. 3 in an unfolded state;

FIG. 14 is a perspective view of the folding mechanism of FIG. 13 in a closed position;

FIG. 15 is a perspective view of one perspective of a folding assembly of the folding mechanism of FIG. 13;

FIG. 16 is an exploded view of one perspective of the folding assembly of the folding mechanism of FIG. 15;

FIG. 17 is a perspective view of another perspective of the folding assembly of the folding mechanism shown in FIG. 15;

fig. 18 is an exploded view from another perspective of the folding assembly of the folding mechanism of fig. 17.

The housing assembly 20 of the foldable mobile terminal 10 includes a first slide groove 211, a boss 212, a first top plate 213, a first baffle 214, a first sink 217, a first left end 218, a first right end 219, a second slide groove 221, a second top plate 223, a second baffle 224, a main body 2241, a rotating shaft 2243, a second sink 227, a second left end 228, a second right end 229, a bottom wall 311, a first sidewall 313, a second top wall 315, a first top wall 316, a groove 317, a folding mechanism 30, a bottom wall 310, a third resilient member 321, a first slide 322, a connecting portion 3221, a rotating portion 3225, a fourth resilient member 327, a first boss 3281, a fifth resilient member 3283, a first end 3284 catch 3285, a first boss 3286 catch 3286, a positioning groove 3288, a second boss 3291, a second boss 3292, a sixth resilient member 3293, a second boss 323, a 3295 Gear Assembly 330 first Worm 331, turbine 332 second Worm 333 Flexible display Screen 40 bendable region 410

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, 2 and 3, the present application provides a folder type mobile terminal 10. As shown in fig. 4 and 5, the folder-type mobile terminal 10 includes a housing assembly 20, a folding mechanism 30, and a flexible display 40. The housing assembly 20 includes a first housing 210 and a second housing 220. The folding mechanism 30 includes a cover plate 310 and a folding assembly 320, the folding assembly 320 including a first worm 331, a worm wheel 332, a second worm 333, a first connecting rod 322, and a second connecting rod 326; the cover plate 310 is located between the first housing 210 and the second housing 220, the first worm 331 and the second worm 333 are connected to the cover plate 310, the first worm 331 and the second worm 333 can both rotate relative to the cover plate 310, the worm wheel 332 is located between the first worm 331 and the second worm 333, and the worm wheel 332 is meshed with the first worm 331 and the second worm 333 respectively, so that the first worm 331 can drive the second worm 333 to rotate. One end of the first connecting rod 322 is connected to the first housing 210, the other end of the first connecting rod 322 is connected to the first worm 331, one end of the second connecting rod 326 is connected to the second housing 220, and the other end of the second connecting rod 326 is connected to the second worm 333. A flexible display 40 covering the first housing 210 and the second housing 220; when the folder-type mobile terminal 10 is closed, the flexible display 40 is hidden between the first housing 210 and the second housing 220. During the folding process of the folding mobile terminal 10, the first housing 210 can drive the first worm 331 to rotate through the first connecting rod 322, the first worm 331 can drive the worm wheel 332 to rotate, the worm wheel 332 can drive the second worm 333 to rotate, and the second worm 333 can drive the second housing 220 to turn over through the second connecting rod 326; during the unfolding process of the folding mobile terminal 10, the first housing 210 can drive the second housing 220 to turn over through the folding mechanism 30; the first housing 210 and the second housing 220 are both able to rotate with respect to the cover 310 during the folding and unfolding of the folding mobile terminal 10.

Through the above arrangement, in the process of unfolding and folding the mobile terminal 10, the first casing 210 and the second casing 220 are linked through the first worm 331, the worm wheel 332 and the second worm 333, and the second casing 220 can be driven to rotate when the first casing 210 rotates, so that the mobile terminal 10 can rotate relatively more stably in the process of unfolding and folding, and the use is more convenient.

With reference to fig. 13 and 14, the cover plate 310 is in a strip shape, the first housing 210 and the second housing 220 are arranged in the width direction of the cover plate 310, and a first top wall 316 is disposed at one end of the cover plate 310 in the length direction; the folding assembly 320 further includes a stop member 3287, the first stop member 3287 is fixed on the cover plate 310, and the stop member 3287 is disposed opposite to the first top wall 316; both ends of the first worm 331 and the second worm 333 respectively penetrate the first top wall 316 and the stopper 3287, so that the first worm 331 and the second worm 333 can rotate relative to the cover 310. A second top wall is further disposed at the other end of the cover plate 310 in the length direction, and two sets of folding assemblies 320 are disposed and respectively mounted on the first top wall 316 and the second top wall. The stopping member 3287 is provided with two shaft holes, the first top wall 316 is also provided with two shaft holes, one end of the first worm 331 passes through one shaft hole of the stopping member 3287, and the other end of the first worm 331 passes through one shaft hole of the first top wall 316, so that the first worm 331 can be fixed on the cover plate 310 and can rotate relative to the cover plate 310. It will be appreciated that the second worm 333 is provided in the same manner as the first worm 331.

Referring to fig. 6 and 7, the first housing 210 has a first sliding slot 211, and the second housing 220 has a second sliding slot 221. The folding assembly 320 includes a first elastic element 215 and a second elastic element 225, the first elastic element 215 is respectively connected to an end of a first connecting rod 322 away from the first worm 331 and the first housing 210, the first connecting rod 322 is slidably disposed in the first sliding slot 211; the second connecting rod 326 is slidably disposed in the second sliding slot 221, one end of the second connecting rod 326 away from the second worm 333 is connected to the second elastic member 225, and the second elastic member 225 is connected to the second housing 220. During the folding process of the folding mobile terminal 10, the first housing 210 can drive the first worm 331 to rotate through the first connecting rod 322, and the first elastic element 215 pushes the first connecting rod 322 to slide in the first sliding slot 211 to drive the cover plate 310 to move away from the bendable region 410 of the flexible display 40; when the second connecting rod 326 drives the second housing 220 to turn over, the second elastic element 225 pushes the second connecting rod 326 to slide in the second sliding slot 221; the cover plate 310, the first housing 210 and the second housing 220 form a receiving space for receiving the bendable region 410; during the unfolding process of the foldable mobile terminal 10, the first housing 210 can drive the second housing 220 to turn over via the folding mechanism 30, and the cover plate 310 can move towards the direction close to the bendable region 410.

Referring to fig. 8, 9 and 10, in the process of folding the folding mobile terminal 10, the first housing 210 can drive the first worm 323 to rotate through the first connecting rod 322, and the first elastic member 321 pushes the first connecting rod 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 screen 40, the first worm 323 can drive the worm wheel 324 to rotate, the worm wheel 324 can drive the second worm 325 to rotate, the second worm 325 can drive the second housing 220 to turn over through the second connecting rod 326, and the second elastic member 327 pushes the second connecting rod 326 to slide in the second sliding slot 221. The portion of the flexible display screen 40 covering the first housing 210 is driven by the first housing 210, the portion of the flexible display screen 40 covering the second housing 220 is driven by the second housing 220, the bendable region 410 of the flexible display screen 40 bends during the folding process of the foldable mobile terminal 10, and the cover plate 310, the first housing 210 and the second housing 220 form an accommodating space for accommodating the bendable region 410. Referring to fig. 11 and 12, 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 323 is in the forward direction in the process of folding the foldable mobile terminal 10, and in the process of unfolding the foldable mobile terminal 10, the first housing 210 can drive the first worm 323 to rotate in the reverse direction through the first connecting rod 322, and the first elastic member 321 pulls the first connecting rod 322 to slide in the first sliding slot 211 to drive the cover plate 310 to move in the direction close to the bendable region 410 of the flexible display 40, the first worm 323 can drive the worm wheel 324 to rotate, the worm wheel 324 can drive the second worm 325 to rotate, the second worm 325 can drive the second housing 220 to turn through the second connecting rod 326, and the second elastic member 327 pulls the second connecting rod 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 housing 210 and the second housing 220 can form a receiving space for receiving the bendable region 410 of the flexible display 40, and a length of a side of the folding mobile terminal 10 facing away from the flexible display 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 first 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 first elastic member 321 is in a compressed state. During the folding process of the foldable mobile terminal 10, the elastic potential energy of the first elastic element 321 is released to push the first connecting rod 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 connecting rod 322. The first elastic member 321 is compressed again during the folding of the folder-type mobile terminal 10. In an embodiment, the second elastic element 327 is a spring or an elastic column, and the structure of the second elastic element 327 may be the same as the structure of the first elastic element 321, and the description thereof is omitted. It is understood that the structure of the first connecting rod 322 may be the same as that of the second connecting rod 326, and the first connecting rod 322 and the second connecting rod 326 are disposed at two sides of the worm wheel 324 in an axisymmetrical manner; the first worm 323 may have the same structure as the second worm 325, and the first worm 323 and the second worm 325 are disposed on both sides of the worm wheel 324 in an axisymmetric manner. The structure enables the forces on both sides of the worm wheel 324 to be axisymmetrically distributed about the worm wheel 324 during the unfolding and folding processes of the folding mobile terminal 10, which is beneficial to realize the stable unfolding and folding of the folding mobile terminal 10.

Referring to fig. 7, the first housing 210 includes a first top plate 213 and a third elastic member 215, the second housing 220 includes a second top plate 223 and a fourth elastic member 225, the first top plate 213 is rotatably coupled to the first housing 210, the second top plate 223 is rotatably coupled to the second housing 220, the third elastic member 215 is coupled to the first top plate 213 and the first housing 210, respectively, and the fourth elastic member 225 is coupled to the second top plate 223 and the second housing 220, respectively. During the unfolding and folding of the folder-type mobile terminal 10, the third elastic element 215 can enable the first top board 213 to abut against the bendable region 410, and the fourth elastic element 225 can enable the second top board 223 to abut against the bendable region 410. 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.

In the embodiment shown in fig. 7, the third elastic member 215 is a torsion spring having two free ends. One of the first housing 210 and the first top plate 213 is provided with a rotation shaft, and the other is provided with a shaft hole, and the rotation shaft is rotatably provided in the shaft hole to rotatably connect the first top plate 213 with the first housing 210. The torsion spring is sleeved on the rotation shaft, one free end of the torsion spring is connected with the first top plate 213 and is fixed and unchangeable relative to the position of the first top plate 213, and the other free end of the torsion spring is connected with the first shell 210 and is fixed and unchangeable relative to the position of the first shell 210. When the foldable mobile terminal 10 is unfolded, the torsion spring exerts a pre-tightening force on the first top plate 213, so that the first top plate 213 abuts against and supports the bendable region 410. The torsion spring 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 structure and action principle of the fourth elastic element 225 may be the same as those of the third elastic element 215, and the description thereof is omitted.

In other embodiments, the third elastic member 215 may be a spring or an elastic column, one end of the third elastic member 215 is connected to the first housing 210, and the other end of the third 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 torsion spring 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 fourth 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 third elastic member 215, and thus the description thereof is omitted.

Referring to fig. 13 and 14, in an embodiment, the cover plate 310 includes a bottom wall 311, and a first sidewall 313 and a second sidewall 315 extending from two opposite edges of the bottom wall 311, and the first sidewall 313, the second sidewall 315 and the bottom wall 311 are enclosed to form a groove 317, referring to fig. 12, 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 sidewall 313, and a side of the second top plate 223 facing away from the bendable region 410 abuts against the second sidewall 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. 10, 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 a 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. 12, 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. 10, 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. 9 and 10, 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. 12, when the folder-type mobile terminal 10 is unfolded, the first right end 219 abuts against the first left end 218. The above structure enables the folder type mobile terminal 10 to have a better appearance when unfolded and folded.

Referring to fig. 15 and 16, the first connecting rod 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. 7, the rotating portion 3225 is connected to the first worm 323, the sliding portion 3221 is connected to the first 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 connecting rod 326 may be the same as that of the first connecting rod 322, and the second sliding slot 221 may also be provided with a boss 212 for limiting the moving range of the second connecting rod 326, which is not described herein again.

Further, referring to fig. 5 and 6, the first housing 210 may include a baffle 214, and the baffle 214 is covered on the first sliding groove 211 and detachably connected to the first housing 210. The detachable connection may be in various manners, for example, the baffle 214 may be detachably connected to the first housing 210 by a screw structure, and the baffle 214 may also be detachably connected to the first housing 210 by a snap-fit manner. After the baffle 214 is covered on the first sliding slot 211, the first connecting rod 322 and the first elastic element 321 can be limited, so that the first connecting rod 322 and the first elastic element 321 are prevented from being separated from the first sliding slot 211 in the unfolding and folding processes of the folding mobile terminal 10. It is understood that the second sliding groove 221 may also be covered with a baffle 214 to limit the position of the second connecting rod 326 and the second elastic element 327, which is not described herein again.

Referring to fig. 14, 15 and 16, in an embodiment, the folding assembly 320 includes a first shaft sleeve 3281, a fifth elastic member 3283 and a clamping member 3285, the first shaft sleeve 3281 and the clamping member 3285 are respectively sleeved on the first worm 323, the first shaft sleeve 3281 is respectively slidably connected to the first worm 323 and the first connecting rod 322, the stopping member 3287 is fixedly connected to the cover plate 310, and two ends of the fifth elastic member 3283 are respectively connected to the stopping member 3287 and the first shaft sleeve 3281. A plurality of first locking grooves 3286 are formed in the locking member 3285 along the circumferential direction of the first worm 323, a first protrusion 3282 is formed on the first collar 3281, and the first protrusion 3282 can be locked in the first locking groove 3286. The first connecting rod 322 can drive the first worm 323 to rotate through the first shaft sleeve 3281, and when the first worm 323 rotates, the first shaft sleeve 3281 can slide and stretch along the axial direction of the first worm 323, and the first protrusion 3282 can enter into the other 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. 17 and 18, the folding assembly 320 may include a second shaft sleeve 3291 and a sixth elastic member 3293, the clamping member 3285 is further sleeved on the second worm 325, the second shaft sleeve 3291 is slidably connected to the second worm 325 and the second connecting 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 325, 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 connecting rod 326 can drive the second worm 325 to rotate through the second shaft sleeve 3291, and when the second worm 325 rotates, the second shaft sleeve 3291 can slide and stretch along the axial direction of the second worm 325, 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 card slot 3286 may have the same structure as the second card slot 3295, which facilitates symmetrical forces on both sides of the worm wheel 324 to enable the folding mobile terminal 10 to be unfolded and folded smoothly.

Referring to fig. 16, 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 assembly and disassembly of the first boss 3281, the first worm 323, 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 325 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:

a housing assembly including a first housing and a second housing;

the folding mechanism comprises a cover plate and a folding assembly, and the folding assembly comprises a first worm, a worm wheel, a second worm, a first connecting rod and a second connecting rod; the cover plate is positioned between the first shell and the second shell, the first worm and the second worm are connected to the cover plate, the first worm and the second worm can rotate relative to the cover plate, the worm wheel is positioned between the first worm and the second worm, and the worm wheel is meshed with the first worm and the second worm respectively, so that the first worm can drive the second worm to rotate; one end of the first connecting rod is connected with the first shell, the other end of the first connecting rod is connected with the first worm, one end of the second connecting rod is connected with the second shell, and the other end of the second connecting rod is connected with the second worm; and

2. The folder-type mobile terminal according to claim 1, wherein the cover plate has a strip shape, the first housing and the second housing are arranged in a width direction of the cover plate, and one end of the cover plate in a length direction is provided with a first top wall; the folding assembly further comprises a stopping piece, the stopping piece is fixed on the cover plate, and the stopping piece is arranged opposite to the first top wall; two ends of the first worm and the second worm respectively penetrate through the first top wall and the first stop piece, so that the first worm and the second worm can rotate relative to the cover plate.

3. The foldable mobile terminal of claim 2, wherein the first housing defines a first slot, and the second housing defines a second slot;

4. The folder-type mobile terminal according to claim 3, wherein the first housing includes a first top plate and a third elastic member, the second housing includes a second top plate and a fourth elastic member, the first top plate is rotatably connected to the first housing, the second top plate is rotatably connected to the second housing, the third elastic member is respectively connected to the first top plate and the first housing, and the fourth elastic member is respectively connected to the second top plate and the second housing; in the process of unfolding and folding the foldable mobile terminal, the third elastic piece can enable the first top plate to be abutted against the bendable region, and the fourth elastic piece can enable the second top plate to be abutted against the bendable region.

5. The folder-type mobile terminal of claim 4, 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 4, wherein the third elastic member is a torsion spring having two free ends; one of the first shell and the first top plate is provided with a rotating shaft, and the other one of the first shell and the first top plate is provided with a shaft hole, wherein the rotating shaft is rotatably arranged in the shaft hole so as to enable the first top plate to be rotatably connected with the first shell; the torsion spring is sleeved on the rotating shaft, one free end of the torsion spring is connected with the first top plate, and the other free end of the torsion spring is connected with the first shell.

7. The folder-type mobile terminal of any one of claim 4, wherein the cover 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 end of the first top plate is accommodated in the groove and abutted against the first side wall, the end of the second top plate is accommodated in the groove and abutted against the second side wall, and the first top plate, the first side wall, the bottom wall, the second side wall and the second top plate define the accommodating space.

8. The foldable mobile terminal of claim 7, 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.

9. The folding mobile terminal of claim 8, wherein the first housing comprises a first left end surface and a first right end surface which are opposite to each other, and the first sinking groove extends through the first right end surface; the second shell comprises a second left end surface and a second right end surface which are arranged in an opposite manner, and the second sinking groove penetrates through the second left end surface; when the folding mobile terminal is unfolded, the first right end face is abutted to the first left end face.

10. The folder-type mobile terminal according to claim 3, wherein the first connecting rod comprises a sliding portion, a connecting portion and a rotating portion, the sliding portion and the rotating portion are integrally connected to two ends of the connecting portion, respectively, the rotating portion is connected to the first worm, the sliding portion is connected to the first elastic member, and the sliding portion and the connecting portion are slidably disposed in the first sliding slot; the first shell is provided with a boss, and when the sliding part slides in the first sliding groove, the boss can be abutted against the sliding part to limit the sliding range of the sliding part.

11. The folder-type mobile terminal of claim 2, wherein the folder assembly comprises a first sleeve, a fifth elastic member and a latching member, the first sleeve and the latching member are respectively sleeved on the first worm, the first sleeve is respectively slidably connected to the first worm and the first connecting rod, the stopper is fixedly connected to the cover plate, and two ends of the fifth elastic member are respectively connected to the stopper 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 connecting 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 bulge can enter the other first clamping groove from the first clamping groove.

12. The folder-type mobile terminal of claim 11, wherein the folder assembly comprises 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 connecting rod, and two ends of the sixth elastic member are connected to 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 connecting 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 bulge can enter the other second clamping groove from one second clamping groove.

13. The folder-type mobile terminal of claim 12, 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.