WO2020135147A1 - 移动终端 - Google Patents

移动终端 Download PDF

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Publication number
WO2020135147A1
WO2020135147A1 PCT/CN2019/125891 CN2019125891W WO2020135147A1 WO 2020135147 A1 WO2020135147 A1 WO 2020135147A1 CN 2019125891 W CN2019125891 W CN 2019125891W WO 2020135147 A1 WO2020135147 A1 WO 2020135147A1
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WO
WIPO (PCT)
Prior art keywords
sleeve
mobile terminal
hinge mechanism
stop
axis
Prior art date
Application number
PCT/CN2019/125891
Other languages
English (en)
French (fr)
Inventor
张新富
Original Assignee
维沃移动通信有限公司
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Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2020135147A1 publication Critical patent/WO2020135147A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel

Definitions

  • the present disclosure relates to the technical field of communication equipment, and particularly to a mobile terminal.
  • the screen size of the mobile terminal With the development of the mobile terminal industry, people expect the screen size of the mobile terminal to be as large as possible. For example, the screen size of a smart phone has grown from the initial 3.5 inches to the current 6 inches or even 7 inches. Even with such a large screen at present, it still cannot meet people's needs for viewing videos and reading books; on the other hand, the larger the screen, the larger the size of the mobile terminal, and the less convenient it is to carry, so a larger screen is produced. Contradiction between needs and portability.
  • the mobile terminal in the related art includes a first casing 110, a second casing 120, a rotating shaft 130, and a flexible display screen 140.
  • the first casing 110 and the second casing 120 pass through the rotating shaft 130 Hinged, the flexible display screen 140 is disposed on the first casing 110 and the second casing 120, and the rotating shaft 130 is located below the flexible display screen 140.
  • the mobile terminal can be folded and unfolded.
  • the rotation axis of the entire mobile terminal, the central axis of the rotation axis 130, and the rotation axis of the flexible display screen 140 are the same axis.
  • the length of the flexible display screen 140 is L1+L2, where L1 and L2 are the lengths of the opposite edges of the flexible display screen 140 to the central axis of the rotating shaft 130, respectively;
  • the length of the flexible display screen 140 is L1+L2+ ⁇ R, where R is the radius of the rotating shaft 130.
  • the flexible display screen 140 is longer by ⁇ R in the folded state than in the unfolded state. Since the flexible display screen 140 has no elasticity in the length direction, the flexible display screen 140 is easily damaged and has a short life span.
  • the present disclosure discloses a mobile terminal to extend the life of a flexible display screen.
  • a mobile terminal including:
  • the first hinge mechanism and the second hinge mechanism are The first hinge mechanism and the second hinge mechanism
  • a second cabinet hinged with the first cabinet through the first hinge mechanism and the second hinge mechanism;
  • a flexible display screen is provided in the first casing and the second casing.
  • the flexible display screen has a bending area and flat portions distributed on both sides of the bending area.
  • the bending area is located at Between the first hinge mechanism and the second hinge mechanism, in the folded state, the bending axis of the bending area is offset relative to the hinge axis of the first cabinet and the second cabinet It is provided and is closer to the plane portion than the hinge axis.
  • the bending area of the flexible display screen is located between the first hinge mechanism and the second hinge mechanism, and its bending axis is relative to the hinge axis of the first cabinet and the second cabinet
  • the offset is set, and is closer to the plane portion of the flexible display screen than the hinge axis. Therefore, in the process of folding the mobile terminal, the bending area does not need to rotate around the hinge axis, and its bending axis is closer to the flat portion of the flexible display screen, so the length of the flexible display screen changes less, or even If there is no change, it will not be easily pulled and its life will be longer.
  • FIG. 1 is a plan view of a mobile terminal in a related art in an expanded state
  • Figure 2 is a cross-sectional view of the structure shown in Figure 1;
  • FIG. 3 is a plan view of a mobile terminal in a folded state in the related art
  • FIG. 4 is a cross-sectional view of the structure shown in FIG. 3;
  • FIG. 5 is a top view of the mobile terminal disclosed in an embodiment of the present disclosure in an expanded state
  • FIG. 6 is a cross-sectional view of the structure shown in FIG. 5;
  • FIG. 7 is a top view of the mobile terminal disclosed in an embodiment of the present disclosure in a folded state
  • FIG. 8 is a cross-sectional view of the structure shown in FIG. 7;
  • FIG. 9 is a schematic structural diagram of a first hinge mechanism or a second hinge mechanism in a deployed state in a mobile terminal disclosed in an embodiment of the present disclosure.
  • FIG. 10 is a top view of the structure shown in FIG. 9;
  • FIG. 11 is a cross-sectional view taken along line A-A of the structure shown in FIG. 10;
  • FIG. 12 is a schematic structural diagram of a first hinge mechanism or a second hinge mechanism in a folded state in a mobile terminal disclosed in an embodiment of the present disclosure
  • FIG. 13 is a top view of the structure shown in FIG. 12;
  • FIG. 14 is a cross-sectional view taken along line B-B of the structure shown in FIG. 13;
  • FIG. 15 is an exploded view of the first hinge mechanism or the second hinge mechanism in the mobile terminal disclosed in the embodiment of the present disclosure.
  • the mobile terminal disclosed in the embodiments of the present disclosure includes a first chassis 200, a second chassis 300, a flexible display screen 400, a first hinge mechanism 500a, and a second hinge mechanism 500b.
  • the first cabinet 200 and the second cabinet 300 are hinged by the first hinge mechanism 500a and the second hinge mechanism 500b, so the two can rotate around the hinge axis Z1, thereby forming an unfolded state and a folded state of the mobile terminal.
  • the flexible display screen 400 is disposed on the first cabinet 200 and the second cabinet 300, that is, the first cabinet 200 and the second cabinet 300 jointly support the flexible display screen 400.
  • the flexible display screen 400 has a bending area 410 and flat portions 420 distributed on both sides of the bending area 410, and the bending area 410 is located between the first hinge mechanism 500a and the second hinge mechanism 500b.
  • the bending area 410 here refers to a portion where bending deformation occurs when the flexible display screen 400 is folded.
  • the first cabinet 200 and the second cabinet 300 are distributed side by side, and the entire flexible display screen 400 is in a flat state, thereby obtaining a larger display area.
  • its bending region 410 is located between the first hinge mechanism 500a and the second hinge mechanism 500b.
  • the bending area 410 In the folded state, the bending area 410 is bent, and viewed along the thickness direction of the flexible display screen 400, the bending area 410 is still located between the first hinge mechanism 500a and the second hinge mechanism 500b.
  • the bending axis Z2 of the bending region 410 is offset relative to the hinge axis Z1 of the first cabinet 200 and the second cabinet 300 (that is, the hinge axis Z1 and the bending axis Z2 are not collinear), and the bending The axis Z2 is closer to the plane portion 420 than the hinge axis Z1. It should be noted that the bending axis Z2 and the hinge axis Z1 may be parallel to each other.
  • the first hinge mechanism 500a and the second hinge mechanism 500b are disposed outside the area covered by the flexible display screen 400, that is, the first hinge mechanism 500a and the second hinge mechanism 500b are not disposed on the flexible display screen 400 below.
  • the bending area 410 of the flexible display screen 400 does not need to rotate around the hinge axis Z1, and the bending axis Z2 is closer to the plane portion 420 of the flexible display screen 400. Therefore, the change of the length of the flexible display screen 400 is small, and even if it does not change, it is not easily pulled and its life is longer.
  • the first hinge mechanism 500a and the second hinge mechanism 500b may be set to a symmetrical structure, and the plane of symmetry is overbending The midpoint of the folding axis Z2 is perpendicular to the plane of the folding axis Z2. With this structure, the rotation axes of the first hinge mechanism 500a and the second hinge mechanism 500b are collinear, so the rotation between the first cabinet 200 and the second cabinet 300 can be smoother.
  • the length of the flexible display screen 400 is L1+L2+2*L3+2R; as shown in FIG. 8, when the mobile terminal is in the folded state, the flexible display screen 400 The length is L1+L2+ ⁇ R.
  • L1 is the distance between one edge of the bending region 410 and the edge of the flat surface 420 on the side of the flexible display screen 400
  • L2 is the distance between the other edge of the bending region 410 and the other side of the flexible display screen 400
  • the distance between the edges of the plane portion 420, L3 is the distance between the bending axis Z2 and the hinge axis Z1 in the folded state
  • R is the turning radius of the first hinge mechanism 500a.
  • the embodiment of the present disclosure sets L3 to 0.5-0.7R, so that the flexible display screen 400 is folded
  • the length of the mobile terminal basically does not change.
  • At least one of the first hinge mechanism 500a and the second hinge mechanism 500b includes a first rotating member 510 connected to the first casing 200, and a first rotating member 510 connected to the second casing 300.
  • Two rotating members 520 and a rotating shaft 530 the first rotating member 510 includes a first sleeve 511
  • the second rotating member 520 includes a second sleeve 521
  • the rotating shaft 530 penetrates the first sleeve 511 and the second sleeve 521, and then The first sleeve 511 and the second sleeve 521 form a shaft hole fit.
  • a driving force may be applied to the first casing 200 or the second casing 300, and at this time, the first sleeve 511 and the second sleeve 521 rotate around the rotating shaft 530, thereby making the first casing 200 and the second casing 521
  • the two casings 300 rotate relatively.
  • the structure of this hinge mechanism is relatively simple, and at the same time, the stability during the rotation is relatively high.
  • the first casing 200 and the second casing 300 can be directly fixed on the first sleeve 511 and the second sleeve 521 respectively, but in this way, the first casing 200 and the first sleeve 511 2.
  • the connection area between the second casing 300 and the second sleeve 521 is small, resulting in poor structural strength of the mobile terminal.
  • the first rotating member 510 may further include a first connecting plate 512 connected to the first sleeve 511, and a plurality of first connecting holes 512a may be opened on the first connecting plate 512, and the first connecting plate 512 is connected by the first The hole 512a is fixedly connected to the first cabinet 200. At this time, the first connecting plate 512 and the first casing 200 are in surface contact, so the connection strength between the two is higher.
  • the second rotating member 520 may further include a second connecting plate 522 connected to the second sleeve 521, and a plurality of second connecting holes 522a may be formed in the second connecting plate 522, and the second connecting plate 522 passes through the second The connection hole 522a is fixedly connected to the second cabinet 300.
  • the flexible display screen 400 can only be folded in one direction. Once the folding direction is wrong when the user performs folding, it will have a negative impact on the life of the flexible display screen 400. Therefore, in order to prevent such a situation, a corresponding structure can be provided to The folding direction of the flexible display screen 400 is restricted.
  • one of the first sleeve 511 and the second sleeve 521 is provided with a stop protrusion 541, and the other is provided with a stop groove 542, the stop protrusion 541 extends into the stop groove 542, And the two are matched at the upper limit of the relative rotation direction of the first sleeve 511 and the second sleeve 521.
  • the stop protrusion 541 slides in the stop groove 542, and when the stop protrusion 541 slides to the side wall of the stop groove 542 At this time, the side wall blocks the stop protrusion 541 from continuing to slide, so that the first sleeve 511 and the second sleeve 521 cannot continue to rotate relative to each other, so as to achieve the foregoing objective.
  • the stop groove 542 has a first stop groove wall 542a and a second stop groove wall 542b.
  • the stop protrusion 541 and the first stop groove wall 542a are limitedly engaged, and in the expanded state, the stop The moving convex portion 541 is engaged with the second stop groove wall 542b.
  • the distance between the first stop groove wall 542a and the second stop groove wall 542b in the relative rotation direction of the first sleeve 511 and the second sleeve 521 is the first casing 200 and the second casing 300
  • the maximum value of the relative rotation stroke, so this structure is more convenient to design the structure of the mobile terminal.
  • first stop groove wall 542a and the second stop groove wall 542b may be arranged oppositely along the radial direction of the first sleeve 511 or the second sleeve 521, so that the first sleeve 511
  • the relative rotation angle with the second sleeve 521 is substantially 180°.
  • At least one of the first sleeve 511 and the second sleeve 521 may be provided in plural, and the first sleeve 511 and the second sleeve 521 are alternately arranged.
  • a second sleeve 521 is distributed on both ends of the first sleeve 511, a stop protrusion 541 is provided on both ends of the first sleeve 511, and a stop is provided on both second sleeves 521
  • the groove 542, or both ends of the first sleeve 511 are provided with stop grooves 542, and the stop protrusions 541 are provided on both second sleeves 521.
  • the two ends of the first sleeve 511 and the second sleeves 521 on both sides form a stop structure, the stop effect is better, and the mobile terminal is not easy to be biased due to uneven force during the folding process Oblique, higher folding stability.
  • the mobile terminal disclosed in the embodiments of the present disclosure may be a smart phone, a tablet computer, an e-book reader, or a wearable device.
  • the mobile terminal may also be other terminal devices, which is not limited in the embodiments of the present disclosure.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Abstract

本公开公开一种移动终端，其包括：第一机壳；第一铰链机构和第二铰链机构；第二机壳，通过第一铰链机构和第二铰链机构与第一机壳铰接；柔性显示屏，设置于第一机壳和第二机壳，柔性显示屏具有弯折区域以及分布于弯折区域的两侧的平面部，弯折区域位于第一铰链机构与第二铰链机构之间，在折叠状态下，弯折区域的弯折轴线相对于第一机壳和第二机壳的铰接轴线偏置设置，且比铰接轴线更靠近平面部。

Description

移动终端
相关申请的交叉引用
本申请主张在2018年12月29日在中国提交的中国专利申请号No.201811631787.6的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信设备技术领域，尤其涉及一种移动终端。
背景技术
随着移动终端行业的发展，人们期望移动终端的屏幕尺寸尽量大，例如智能手机的屏幕尺寸从最初的3.5寸，发展到目前的6寸甚至7寸。即使是以目前这么大的屏幕，仍然不能满足人们观看视屏、看书等使用需求；另一方面，屏幕越大，移动终端的尺寸越大，也就越不便于携带，于是产生了更大的屏幕需求和便于携带之间的矛盾。
为了解决上述矛盾，可折叠的柔性显示屏应运而生，使用此种柔性显示屏的移动终端可以对应进行折叠。由于此种移动终端可以兼顾大屏需求与便携性，因此有广阔的应用前景。参见图1-图4所示，相关技术中的移动终端包括第一机壳110、第二机壳120、转轴130和柔性显示屏140，第一机壳110和第二机壳120通过转轴130铰接，柔性显示屏140设置于第一机壳110和第二机壳120上，并且转轴130位于柔性显示屏140的下方。通过第一机壳110和第二机壳120的相对转动，就可以实现移动终端的折叠和展开。
采用上述结构时，整个移动终端的旋转轴、转轴130的中心轴以及柔性显示屏140的旋转轴为同一轴。在展开状态下(即图1和图2所示状态)，柔性显示屏140的长度为L1+L2，其中L1和L2分别为柔性显示屏140的相对两边缘到转轴130的中心轴的长度；在折叠状态下(即图3和图4所示状态)，柔性显示屏140的长度为L1+L2+πR，其中R为转轴130的半径。显然，柔性显示屏140在折叠状态下比在展开状态下长了πR，由于柔性显示屏140在长度方向上是没有弹性的，因此该柔性显示屏140容易损坏，寿命较短。
发明内容
本公开公开一种移动终端，以延长柔性显示屏的寿命。
为了解决上述问题，本公开采用下述技术方案：
一种移动终端，包括：
第一机壳；
第一铰链机构和第二铰链机构；
第二机壳，通过所述第一铰链机构和所述第二铰链机构与所述第一机壳铰接；
柔性显示屏，设置于所述第一机壳和所述第二机壳，所述柔性显示屏具有弯折区域以及分布于所述弯折区域的两侧的平面部，所述弯折区域位于所述第一铰链机构与所述第二铰链机构之间，在折叠状态下，所述弯折区域的弯折轴线相对于所述第一机壳和所述第二机壳的铰接轴线偏置设置，且比所述铰接轴线更靠近所述平面部。
本公开采用的技术方案能够达到以下有益效果：
本公开公开的移动终端处于折叠状态时，柔性显示屏的弯折区域位于第一铰链机构与第二铰链机构之间，且其弯折轴线相对于第一机壳和第二机壳的铰接轴线偏置设置，且比该铰接轴线更靠近柔性显示屏的平面部。因此，在折叠移动终端的过程中，弯折区域不需要绕着铰接轴线转动，且其弯折轴线距离柔性显示屏的平面部更近，因此柔性显示屏的长度所发生的变化较小，甚至不发生变化，也就不容易受到拉扯，其寿命更长。
附图说明
此处所说明的附图用来提供对本公开的进一步理解，构成本公开的一部分，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。在附图中：
图1为相关技术中的移动终端在展开状态下的俯视图；
图2为图1所示结构的剖视图；
图3为相关技术中的移动终端在折叠状态下的俯视图；
图4为图3所示结构的剖视图；
图5为本公开实施例公开的移动终端在展开状态下的俯视图；
图6为图5所示结构的剖视图；
图7为本公开实施例公开的移动终端在折叠状态下的俯视图；
图8为图7所示结构的剖视图；
图9为本公开实施例公开的移动终端中，第一铰链机构或第二铰链机构在展开状态下的结构示意图；
图10为图9所示结构的俯视图；
图11为图10所示结构的A-A向剖视图；
图12为本公开实施例公开的移动终端中，第一铰链机构或第二铰链机构在折叠状态下的结构示意图；
图13为图12所示结构的俯视图；
图14为图13所示结构的B-B向剖视图；
图15为本公开实施例公开的移动终端中，第一铰链机构或第二铰链机构的爆炸图。
附图标记说明：
110-第一机壳、120-第二机壳、130-转轴、140-柔性显示屏；
200-第一机壳、300-第二机壳、400-柔性显示屏、410-弯折区域、420-平面部、500a-第一铰链机构、500b-第二铰链机构、510-第一转动件、511-第一套筒、512-第一连接板、512a-第一连接孔、520-第二转动件、521-第二套筒、522-第二连接板、522a-第二连接孔、530-转轴、541-止动凸部、542-止动凹槽、542a-第一止动槽壁、542b-第二止动槽壁。
具体实施方式
为使本公开的目的、技术方案和优点更加清楚，下面将结合本公开具体实施例及相应的附图对本公开技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
以下结合附图，详细说明本公开各个实施例公开的技术方案。
如图5-图8所示，本公开实施例公开的移动终端包括第一机壳200、第二机壳300、柔性显示屏400、第一铰链机构500a和第二铰链机构500b。第一机壳200与第二机壳300通过第一铰链机构500a和第二铰链机构500b铰接，因此两者可以绕着铰接轴线Z1转动，进而形成移动终端的展开状态和折叠状态。柔性显示屏400设置于第一机壳200和第二机壳300，即第一机壳200和第二机壳300共同支撑柔性显示屏400。柔性显示屏400具有弯折区域410以及分布于弯折区域410的两侧的平面部420，该弯折区域410位于第一铰链机构500a和第二铰链机构500b之间。这里的弯折区域410指的是柔性显示屏400折叠时发生弯折变形的部分。
在展开状态下，第一机壳200和第二机壳300并排分布，整个柔性显示屏400处于展平状态，进而获得较大的显示区域。此时，沿着柔性显示屏400的厚度方向观察，其弯折区域410位于第一铰链机构500a和第二铰链机构500b之间。需要折叠移动终端时，驱动第一机壳200和第二机壳300相对转动，进而带动柔性显示屏400以弯折区域410为转动基础弯折，最终到达折叠状态。在折叠状态下，弯折区域410发生弯折，沿着柔性显示屏400的厚度方向观察，弯折区域410仍然位于第一铰链机构500a和第二铰链机构500b之间。此时，弯折区域410的弯折轴线Z2相对于第一机壳200和第二机壳300的铰接轴线Z1偏置设置(即铰接轴线Z1与弯折轴线Z2不共线)，且弯折轴线Z2比铰接轴线Z1更靠近平面部420。需要说明的是，弯折轴线Z2与铰接轴线Z1可以相互平行。具体结构中，第一铰链机构500a和第二铰链机构500b设置于柔性显示屏400所覆盖的区域之外，也就是说，第一铰链机构500a和第二铰链机构500b并不设置在柔性显示屏400的下方。
采用上述设置方式后，在折叠移动终端的过程中，柔性显示屏400的弯折区域410不需要绕着铰接轴线Z1转动，且其弯折轴线Z2距离柔性显示屏400的平面部420更近，因此柔性显示屏400的长度所发生的变化较小，甚至不发生变化，也就不容易受到拉扯，其寿命更长。
为了使第一机壳200和第二机壳300之间的转动更加顺畅，同时简化移动终端的结构，可以将第一铰链机构500a和第二铰链机构500b设置为对称 结构，对称面为过弯折轴线Z2的中点且垂直于该弯折轴线Z2的面。采用此种结构后，第一铰链机构500a和第二铰链机构500b自身的转动轴线共线，因此可以使第一机壳200和第二机壳300之间的转动更加顺畅。
参照图6所示，当移动终端处于展开状态时，柔性显示屏400的长度为L1+L2+2*L3+2R；参照图8所示，当移动终端处于折叠状态时，柔性显示屏400的长度为L1+L2+πR。为使展开状态下柔性显示屏400的长度与折叠状态下柔性显示屏400的长度相等，可计算得出L3＝((π-2)/2)R≈0.57R。其中，L1为弯折区域410的一侧边缘与柔性显示屏400一侧的平面部420的边缘之间的距离，L2为弯折区域410的另一侧边缘与柔性显示屏400另一侧的平面部420的边缘之间的距离，L3为折叠状态下弯折轴线Z2与铰接轴线Z1之间的距离，R为第一铰链机构500a的转动半径。
进一步地，考虑到第一机壳200和第二机壳300的厚度、两者之间的装配误差等因素，本公开实施例将L3设置为0.5～0.7R，以使得柔性显示屏400在折叠移动终端的过程中基本不发生长度变化。
如图9-图15所述，上述第一铰链机构500a和第二铰链机构500b中的至少一者包括与第一机壳200连接的第一转动件510、与第二机壳300连接的第二转动件520以及转轴530，第一转动件510包括第一套筒511，第二转动件520包括第二套筒521，转轴530穿入第一套筒511和第二套筒521，进而与第一套筒511和第二套筒521形成轴孔配合。折叠移动终端时，可以向第一机壳200或者第二机壳300施加驱动力，此时第一套筒511和第二套筒521绕着转轴530转动，进而使得第一机壳200和第二机壳300相对转动。此种铰链机构结构比较简单，同时转动过程中的稳定性也比较高。
上述结构中，可以将第一机壳200和第二机壳300分别直接固定在第一套筒511和第二套筒521上，但是此种方式下第一机壳200与第一套筒511、第二机壳300与第二套筒521之间的连接面积较小，导致移动终端的结构强度较差。为此，第一转动件510还可以包括与第一套筒511连接的第一连接板512，第一连接板512上可以开设多个第一连接孔512a，第一连接板512通过第一连接孔512a与第一机壳200固定连接。此时，第一连接板512与第一机壳200采用面接触，因此两者的连接强度更高。
同理地，第二转动件520还可以包括与第二套筒521连接的第二连接板522，第二连接板522上可以开设多个第二连接孔522a，第二连接板522通过第二连接孔522a与第二机壳300固定连接。
通常柔性显示屏400只能单向折叠，一旦用户进行折叠时出现折叠方向错误的情况，将会对柔性显示屏400的寿命产生负面影响，因此为了防止出现这种情况，可以设置对应的结构以限制柔性显示屏400的折叠方向。具体地，第一套筒511和第二套筒521中，一者设置止动凸部541，另一者设置止动凹槽542，该止动凸部541伸入止动凹槽542内，且两者在第一套筒511与第二套筒521的相对转动方向上限位配合。也就是说，当第一套筒511与第二套筒521相对转动时，止动凸部541在止动凹槽542内滑动，当止动凸部541滑动到止动凹槽542的侧壁处时，该侧壁就会阻挡止动凸部541继续滑动，以使第一套筒511与第二套筒521无法继续相对转动，以此达到前述目的。
止动凹槽542具有第一止动槽壁542a和第二止动槽壁542b，在折叠状态下，止动凸部541与第一止动槽壁542a限位配合，在展开状态下，止动凸部541与第二止动槽壁542b限位配合。如此设置后，第一止动槽壁542a和第二止动槽壁542b在第一套筒511与第二套筒521的相对转动方向上的距离就是第一机壳200与第二机壳300的相对转动行程的最大值，故此种结构更便于设计移动终端的结构。一种更为具体的结构中，第一止动槽壁542a和第二止动槽壁542b可以沿着第一套筒511或者第二套筒521的径向相对布置，使得第一套筒511与第二套筒521的相对转动角度基本为180°。
为了提升转动稳定性，可以将第一套筒511和第二套筒521中的至少一者设置为多个，且第一套筒511和第二套筒521交替排布。具体实施例中，第一套筒511的两端侧均分布第二套筒521，第一套筒511的两端均设置止动凸部541，两个第二套筒521上均设置止动凹槽542，或者第一套筒511的两端均设置止动凹槽542，两个第二套筒521上均设置止动凸部541。此时，第一套筒511的两端分别与其两侧的第二套筒521形成止动结构，止动效果更佳，且移动终端在折叠过程中也不容易因受力不均而发生偏斜，折叠稳定性更高。
本公开实施例所公开的移动终端可以为智能手机、平板电脑、电子书阅读器或可穿戴设备。当然，该移动终端也可以是其他终端设备，本公开实施例对此不做限制。
本公开上文实施例中重点描述的是各个实施例之间的不同，各个实施例之间不同的优化特征只要不矛盾，均可以组合形成更优的实施例，考虑到行文简洁，在此则不再赘述。
以上所述仅为本公开的实施例而已，并不用于限制本公开。对于本领域技术人员来说，本公开可以有各种更改和变化。凡在本公开的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本公开的权利要求范围之内。

Claims (10)

  1. 一种移动终端，包括：
    第一机壳；
    第一铰链机构和第二铰链机构；
    第二机壳，通过所述第一铰链机构和所述第二铰链机构与所述第一机壳铰接；
    柔性显示屏，设置于所述第一机壳和所述第二机壳，所述柔性显示屏具有弯折区域以及分布于所述弯折区域的两侧的平面部，所述弯折区域位于所述第一铰链机构与所述第二铰链机构之间，在折叠状态下，所述弯折区域的弯折轴线相对于所述第一机壳和所述第二机壳的铰接轴线偏置设置，且比所述铰接轴线更靠近所述平面部。
  2. 根据权利要求1所述的移动终端，其中，所述第一铰链机构和所述第二铰链机构为对称结构，对称面为过所述弯折轴线的中点且垂直于所述弯折轴线的面。
  3. 根据权利要求2所述的移动终端，其中，所述弯折轴线与所述铰接轴线相互平行，在所述折叠状态下，所述弯折轴线与所述铰接轴线之间的距离为0.5～0.7R，其中R为所述第一铰链机构的转动半径。
  4. 根据权利要求1所述的移动终端，其中，所述第一铰链机构和所述第二铰链机构中的至少一者包括与所述第一机壳连接的第一转动件、与所述第二机壳连接的第二转动件以及转轴，所述第一转动件包括第一套筒，所述第二转动件包括第二套筒，所述转轴穿入所述第一套筒和所述第二套筒。
  5. 根据权利要求4所述的移动终端，其中，所述第一转动件还包括与所述第一套筒连接的第一连接板，所述第一连接板与所述第一机壳固定连接，所述第二转动件还包括与所述第二套筒连接的第二连接板，所述第二连接板与所述第二机壳固定连接。
  6. 根据权利要求4所述的移动终端，其中，所述第一套筒和所述第二套筒中，一者设置止动凸部，另一者设置止动凹槽，所述止动凸部伸入所述止动凹槽内，且两者在所述第一套筒与所述第二套筒的相对转动方向上限位配 合。
  7. 根据权利要求6所述的移动终端，其中，所述止动凹槽具有第一止动槽壁和第二止动槽壁，在所述折叠状态下，所述止动凸部与所述第一止动槽壁限位配合，在展开状态下，所述止动凸部与所述第二止动槽壁限位配合。
  8. 根据权利要求6所述的移动终端，其中，所述第一套筒和所述第二套筒中的至少一者设置为多个，且所述第一套筒和所述第二套筒交替排布。
  9. 根据权利要求8所述的移动终端，其中，所述第一套筒的两端侧均分布所述第二套筒，所述第一套筒的两端均设置所述止动凸部，两个所述第二套筒上均设置所述止动凹槽，或者所述第一套筒的两端均设置所述止动凹槽，两个所述第二套筒上均设置所述止动凸部。
  10. 根据权利要求1-9中任一项所述的移动终端，其中，所述移动终端为智能手机、平板电脑、电子书阅读器或可穿戴设备。
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