WO2020052632A1 - 移动终端及铰链机构 - Google Patents

移动终端及铰链机构 Download PDF

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Publication number
WO2020052632A1
WO2020052632A1 PCT/CN2019/105596 CN2019105596W WO2020052632A1 WO 2020052632 A1 WO2020052632 A1 WO 2020052632A1 CN 2019105596 W CN2019105596 W CN 2019105596W WO 2020052632 A1 WO2020052632 A1 WO 2020052632A1
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WO
WIPO (PCT)
Prior art keywords
link
hinge mechanism
shafts
hinged
hinge
Prior art date
Application number
PCT/CN2019/105596
Other languages
English (en)
French (fr)
Inventor
张新富
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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
Priority to EP19858797.4A priority Critical patent/EP3851687A4/en
Priority to KR1020217010465A priority patent/KR102478446B1/ko
Priority to JP2021514426A priority patent/JP7201796B2/ja
Publication of WO2020052632A1 publication Critical patent/WO2020052632A1/zh
Priority to US17/200,010 priority patent/US11503729B2/en

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H05K5/0226—Hinges
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681—Details related solely to hinges
    • 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
    • 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 mobile terminals, and in particular, to a mobile terminal and a hinge structure.
  • the folding screen of the mobile terminal in the related art adopts a whole flexible screen, and in the process of work, it can be folded by bending deformation of the flexible screen.
  • FIG. 1 and FIG. 2 are schematic structural diagrams of a common mobile terminal configured with a flexible screen in a folded and unfolded state.
  • the mobile terminal shown in FIGS. 1 and 2 includes a first casing 102 and a second casing 103 that are rotationally connected through a shaft 101.
  • a portion of the flexible screen 104 is disposed on the first casing 102, and another portion is disposed across the shaft 101.
  • the distance between the first casing 102 and the second casing 103 in the unfolded state is smaller than the distance between the first casing 102 and the second casing 103 in the folded state. This will cause the area of the flexible screen 104 opposite to the axis 101 to bulge when the mobile terminal is in the unfolded state, resulting in unevenness of the surface of the flexible screen 104 and affecting the display effect.
  • the present disclosure discloses a hinge mechanism, so that a mobile terminal can solve the problem that the flexible screen is prone to arching in some areas when it is in an unfolded state.
  • a hinge mechanism includes at least two shafts, a link mechanism, and two connecting portions distributed in rows.
  • the two connecting portions are respectively fixedly connected to the two outermost shafts, and the two adjacent shafts are adjacent to each other. Both are connected by the link mechanism, the link mechanism includes a first link and a second link, and one of the two adjacent shafts is hinged to the first end of the first link, The other is hinged to the first end of the second link, the second end of the first link is hinged to the second end of the second link, and the first link and the second link.
  • a mobile terminal includes a flexible screen, a first case, a second case, and the hinge mechanism described above.
  • the first case is fixedly connected to one of the connection parts, and the second case is connected to another One of the connecting portions is fixedly connected, and the flexible screen is installed on an installation area formed by the first casing, the second casing, and the hinge mechanism.
  • the operator bends the entire hinge mechanism, thereby deforming the link mechanism.
  • the hinge mechanism can be shortened by reducing the width of the gap between two adjacent shafts.
  • the hinge mechanism can be made longer by increasing the width of the gap between two adjacent shafts through the deformation of the link mechanism. It can be seen that the hinge mechanism disclosed in the present disclosure can change its length according to whether it is bent or not. A mobile terminal adopting this hinge mechanism can undoubtedly avoid the problem of arching of the flexible screen when it is unfolded.
  • FIG. 1 is a schematic structural diagram of a mobile terminal in a folded state provided by the related art
  • FIG. 2 is a schematic structural diagram of the mobile terminal shown in FIG. 1 in an expanded state
  • FIG. 3 is a perspective view of a hinge mechanism disclosed in an embodiment of the present disclosure in a deployed state
  • FIG. 4 is a perspective view of a hinge mechanism disclosed in an embodiment of the present disclosure in a folded state
  • FIG. 5 is a schematic plan view of a hinge mechanism in an unfolded state according to an embodiment of the present disclosure
  • FIG. 6 is a schematic plan view of a hinge mechanism in a folded state according to an embodiment of the present disclosure.
  • An embodiment of the present disclosure discloses a hinge mechanism.
  • the disclosed hinge mechanism can replace the shaft 101 described in the background art, thereby realizing the rotation of the first casing 102 and the second casing 103. Connection, thereby achieving the folding of the mobile terminal, and achieving the purpose of the flexible screen 104 being foldable.
  • the hinge mechanism disclosed in the embodiment of the present disclosure includes at least two shafts 100 distributed in a row, a link mechanism 200 and two connecting portions 300.
  • At least two shafts 100 are distributed in a row to form a shaft row. Specifically, the axes of two adjacent shafts 100 are parallel.
  • the link mechanism 200 is used to connect two adjacent shafts 100.
  • the connecting portion 300 is used to connect the hinge mechanism with other components.
  • the hinge mechanism is applied in a mobile terminal, and the two connecting portions 300 may be connected to the first casing 102 and the second casing 103, respectively.
  • the link mechanism 200 may include a first link 210 and a second link 220. Of the two connected shafts 100, one is hinged to the first end of the first link 210, and the other is connected to the second link 220. The first end is hinged. In this case, the first link 210 and the second link 220 can rotate relative to two adjacent shafts 100, respectively.
  • the second end of the first link 210 is hinged to the second end of the second link 220. Since the first link 210 and the second link 220 can be hinged to two adjacent shafts 100 respectively, and the first link The rod 210 and the second link 220 are hinged. Therefore, the integral member formed by the two adjacent shafts 100 and the link mechanism 200 connecting the two can be bent and deformed by the rotation between the components.
  • the adjacent There is a gap 400 between the two shafts 100.
  • the first end of the first link 210 and the first end of the second link 220 can be considered to extend in opposite directions, as shown in FIGS. 3 and 5.
  • the hinge mechanism is in an extended state, and is also the state with the longest length.
  • the link mechanism 200 can adjust the distance between two adjacent shafts 100, thereby making the length of the entire hinge mechanism adjustable.
  • the hinge mechanism is in the longest state, as shown in FIGS. 3 and 5.
  • the hinge mechanism is in the shortest state, as shown in FIGS. 4 and 6.
  • the hinge mechanism disclosed in the embodiment of the present disclosure allows the operator to bend the entire hinge mechanism, thereby deforming the link mechanism 200, and finally, by reducing the width of the gap 400 between two adjacent shafts 100, Makes the hinge mechanism shorter.
  • the hinge mechanism can be made longer by increasing the width of the gap 400 between two adjacent shafts 100 through the deformation of the link mechanism 200.
  • the hinge mechanism disclosed in the embodiments of the present disclosure can change its length according to whether it is bent or not. A mobile terminal adopting this hinge mechanism can undoubtedly avoid the problem of arching of the flexible screen when it is unfolded.
  • the link mechanism 200 may further include a third link 230 and a fourth link 240.
  • a third link 230 and a fourth link 240.
  • the link mechanism 200 may further include a third link 230 and a fourth link 240.
  • one One is hinged to the first end of the third link 230
  • the other is hinged to the first end of the fourth link 240
  • the second end of the third link 230 is hinged to the second end of the fourth link 240.
  • the link mechanism 200 includes more links, and the third link 230 and the fourth link 240 cooperate with the first link without affecting the operation of the first link 210 and the second link 220.
  • the lever 210 and the second link 220 adjust the length of the hinge mechanism together.
  • it can also be considered as a redundant design.
  • This kind of structure can still achieve the normal hinge mechanism by the third link 230 and the fourth link 240 when the first link 210 and the second link 220 fail. jobs.
  • such a design can also avoid the problem that the two adjacent shafts 100 are connected only by the first link 210 and the second link 220 and deform too flexibly.
  • the hinge mechanism disclosed in the embodiment of the present disclosure may further include a fifth link 250.
  • the fifth link 250 is connected between the first link assembly and the second link assembly.
  • the first end of the fifth link 250 may be hinged at the hinge of the third link 230 and the fourth link 240.
  • the second end of the link 250 may be hinged at the hinge of the first link 210 and the second link 220.
  • the fifth link 250 plays a connecting role, and can easily make the deformation directions of the first link assembly and the second link assembly consistent.
  • the third link 230 and the fourth link 240 may be symmetrically distributed along the axis of the fifth link 250.
  • the first link 210 and the second link 220 may be symmetrically distributed with the fifth link 250 as a center of symmetry.
  • the above-mentioned symmetrical arrangement is undoubtedly more conducive to more stable deformation of the link mechanism 200.
  • the shaft 100 may be a common cylindrical shaft or a shaft of other shapes, and this embodiment does not limit the specific shape of the shaft 100.
  • the shaft 100 is a camshaft, and the camshaft includes a convex portion, and the convex portion of each camshaft is located in a shaft row formed by at least two shafts 100.
  • the shaft 100 uses a cam shaft, which can make the coupling between adjacent shafts 100 more compact when the hinge mechanism is in the folded state, which is beneficial to improving the stability of the hinge structure in the folded state.
  • the protrusions of two adjacent shafts 100 are in conflict. This can undoubtedly make the hinge mechanism in the bent state achieve the best bending effect, and make the entire hinge mechanism more compact and stable in the bent state.
  • the first end of the third link 230 and the first end of the fourth link 240 are respectively hinged to the end surfaces of the protrusions of the two adjacent shafts 100.
  • the first end and the first end of the second link 220 are respectively hinged to the centers of the end faces of two adjacent shafts 100.
  • there is a sufficient distance between the first link 210 and the third link 230 and between the second link 220 and the fourth link 240 which is more conducive to the deformation of the entire link mechanism 200.
  • the length of the fifth connecting rod 250 is smaller than the distance between two hinge points in the shaft 100. In this case, it is easier to make the deformation directions of the first link assembly and the second link assembly consistent.
  • connection portion 300 is fixedly connected to the shaft 100.
  • the connecting portion 300 and the shaft 100 connected to the connecting portion 300 may be an integrated structure.
  • the connecting part 300 may be provided with a connecting member or a connecting structure.
  • the connection portion 300 may be provided with a connection hole 310.
  • the connecting portion 300 may be a connecting plate.
  • the end surface of the shaft 100 may be fixed with an articulated shaft A, and the shaft 100 is connected to the first link 210, the second link 220, and the third link 230 through the corresponding hinge axis A
  • the hinge holes on the fourth link 240 are matched to achieve a rotation fit.
  • the first link 210 and the second link 220, the fifth link 250 and the first link 210 and the second link 220, the third link 230 and the fourth link 240, and the fifth link 250 are respectively Each of the third link 230 and the fourth link 240 can be rotated to fit through a through hole provided on the hinge shaft B.
  • an embodiment of the present disclosure discloses a mobile terminal.
  • the disclosed mobile terminal includes a flexible screen, a first casing, a second casing, and the hinge mechanism described above.
  • the casing is fixedly connected to one connecting portion 300
  • the second casing is fixedly connected to the other connecting portion 300
  • the flexible screen is installed on the installation area formed by the first casing, the second casing, and the hinge mechanism.
  • the mobile terminal disclosed in the embodiments of the present disclosure may be a mobile terminal with a flexible screen, such as a mobile phone, a tablet computer, an e-book reader, and a wearable device.
  • a mobile terminal with a flexible screen such as a mobile phone, a tablet computer, an e-book reader, and a wearable device.
  • the embodiments of the present disclosure do not limit the specific types of mobile terminals.

Abstract

一种移动终端和铰链机构，该铰链机构包括至少两根成排分布的轴（100）、连杆机构（200）和两个连接部（300），两个连接部（300）分别与位于最外侧的两根轴（100）固定相连，相邻的两根轴（100）均通过连杆机构（200）相连，连杆机构（200）包括第一连杆（210）和第二连杆（220），相邻的两根轴（100）中，一者与第一连杆（210）的第一端铰接，另一者与第二连杆（220）的第一端铰接，第一连杆（210）的第二端与第二连杆（220）的第二端铰接，在第一连杆（210）和第二连杆（220）分别与相邻的两根轴（100）铰接的铰接点和第一连杆（210）与第二连杆（220）的铰接点处于同一条直线上时，相邻的两根轴（100）之间具有间隙（400）。

Description

移动终端及铰链机构
相关申请的交叉引用
本申请主张在2018年9月13日在中国提交的中国专利申请No.201811071214.2的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及移动终端技术领域，尤其涉及一种移动终端及铰链结构。
背景技术
当前，大屏幕移动终端越来越受到用户的青睐，如何在移动终端整机尺寸预先设定的前提下增大移动终端的屏幕面积，是当前设计者的重要研发方向。
移动终端生产厂家通常通过增大移动终端的屏占比，来获取大屏幕，由此导致移动终端逐步向着超窄边框移动终端，甚至全面屏移动终端的方向发展。但是，由于移动终端的功能越来越多，移动终端内集成的电子器件也越来越多，调整电子器件的位置或减小电子器件的体积，进而来减小边框的宽度已经逐渐走入极限，这使得增大移动终端屏占比的难度越来越大。
此种情况下，越来越多的移动终端采用折叠屏幕来获得大面积屏幕。为了提高折叠屏幕的显示效果，相关技术中的移动终端的折叠屏幕采用一整块柔性屏幕，在工作的过程中，通过柔性屏幕的折弯变形来实现可折叠。
请参考图1和图2，图1和图2为一种常见的配置有柔性屏幕的移动终端在折叠和展开状态下的结构示意图。图1和图2所示的移动终端包括通过轴101转动连接的第一机壳102和第二机壳103，柔性屏幕104一部分设置在第一机壳102上，另一部分跨过轴101后设置在第二机壳103上。
由于轴101的存在，第一机壳102与第二机壳103之间处于展开状态时的距离小于第一机壳102与第二机壳103之间处于折叠状态时的距离。这就会导致在移动终端处于展开状态时，柔性屏幕104与轴101相对的区域发生拱起，导致柔性屏幕104的表面高低不平，影响显示效果。
发明内容
本公开公开一种铰链机构，以使得移动终端能解决其柔性屏幕在展开状态时较容易发生部分区域拱起的问题。
为了解决上述问题，本公开采用下述技术方案：
一种铰链机构，包括至少两根成排分布的轴、连杆机构和两个连接部，两个连接部分别与位于最外侧的两根所述轴固定相连，相邻的两根所述轴均通过所述连杆机构相连，所述连杆机构包括第一连杆和第二连杆，相邻的两根所述轴中，一者与所述第一连杆的第一端铰接，另一者与所述第二连杆的第一端铰接，所述第一连杆的第二端与所述第二连杆的第二端铰接，在第一连杆和所述第二连杆分别与相邻的两根所述轴铰接的铰接点和所述第一连杆与所述第二连杆的铰接点处于同一条直线上时，相邻的两根所述轴之间具有间隙。
一种移动终端，包括柔性屏幕、第一机壳、第二机壳以及上文所述的铰链机构，所述第一机壳与一个所述连接部固定相连，所述第二机壳与另一个所述连接部固定相连，所述柔性屏幕安装在所述第一机壳、第二机壳和所述铰链机构形成的安装区域上。
本公开采用的技术方案能够达到以下有益效果：
本公开公开的铰链机构，操作人员通过弯曲整个铰链机构，进而使得连杆机构变形，最终能通过减小相邻的两根轴之间的间隙的宽度，进而使得铰链机构变短。当拉拽铰链机构，通过连杆机构的变形，最终能通过增大相邻的两根轴之间的间隙的宽度而使得铰链机构变长。可见，本公开公开的铰链机构能够根据自身的弯曲与否来改变自身的长度，采用此种铰链机构的移动终端无疑能够避免柔性屏幕在展开时发生拱起的问题。
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为相关技术提供的一种移动终端处于折叠状态的结构示意图；
图2为图1所示的移动终端处于展开状态的结构示意图；
图3为本公开实施例公开的铰链机构处于展开状态的立体图；
图4为本公开实施例公开的铰链机构处于折叠状态的立体图；
图5为本公开实施例公开的铰链机构处于展开状态的平面结构示意图；
图6为本公开实施例公开的铰链机构处于折叠状态的平面结构示意图。
附图标记说明：
101-轴、102-第一机壳、103-第二机壳、104-柔性屏幕；
100-轴、200-连杆机构、210-第一连杆、220-第二连杆、230-第三连杆、240-第四连杆、250-第五连杆、300-连接部、310-连接孔、400-间隙、A-铰接轴、B-铰接轴。
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。
请参考图3-图6，本公开实施例公开一种铰链机构，所公开的铰链机构可以代替背景技术中所述的轴101，进而实现第一机壳102与第二机壳103的可转动连接，进而实现移动终端的折叠，达到柔性屏幕104可折叠的目的。
本公开实施例公开的铰链机构包括至少两根成排分布的轴100、连杆机构200和两个连接部300。
至少两根轴100成排分布，进而形成轴排。具体的，相邻的两根轴100的轴线平行。连杆机构200用于连接相邻的两根轴100。连接部300用于实现铰链机构与其它部件的连接。铰链机构应用在移动终端中，两个连接部300可以分别与第一机壳102和第二机壳103连接。
本实施例中，至少两根成排分布的轴100中，相邻的两根轴100均通过 连杆机构200相连。连杆机构200可以包括第一连杆210和第二连杆220，相连的两根轴100中，一者与第一连杆210的第一端铰接，另一者与第二连杆220的第一端铰接。此种情况下，第一连杆210和第二连杆220分别能相对于相邻的两根轴100转动。
第一连杆210的第二端与第二连杆220的第二端铰接，由于第一连杆210和第二连杆220能分别相与相邻的两根轴100铰接，而且第一连杆210与第二连杆220铰接，因此相邻的两根轴100及连接两者的连杆机构200形成的整体构件能够通过部件之间的转动，而发生弯曲变形。
在第一连杆210和第二连杆220分别与相邻的两根轴100铰接的铰接点和第一连杆210与第二连杆220的铰接点处于同一条直线上时，相邻的两根轴100之间具有间隙400。此种情况下，第一连杆210的第一端与第二连杆220的第一端可以认为是向着相反方向延伸，如图3和图5所示。此种状态下，铰链机构处于伸展状态，也是其长度最长的状态。
由于第一连杆210和第二连杆220铰接，因此第一连杆210与第二连杆220之间的相交的角度不同，则能够使得相邻的两根轴100之间的距离不相同。由此可知，本实施例中，连杆机构200能够调节相邻的两根轴100之间的间距，进而使得整个铰链机构的长度可调。当第一连杆210的第一端与第二连杆220的第一端朝向相反的方向延伸时，则铰链机构处于最长状态，如图3和图5所示。当第一连杆210与第二连杆220相对转动至相邻的两根轴100接触时，铰链机构则处于最短的状态，如图4和图6所示。
通过上述描述可知，本公开实施例公开的铰链机构，操作人员通过弯曲整个铰链机构，进而使得连杆机构200变形，最终能通过减小相邻的两根轴100之间的间隙400宽度，进而使得铰链机构变短。当拉拽铰链机构，通过连杆机构200的变形，最终能通过增大相邻的两根轴100之间的间隙400宽度而使得铰链机构变长。可见，本公开实施例公开的铰链机构能够根据自身的弯曲与否来改变自身的长度，采用此种铰链机构的移动终端无疑能够避免柔性屏幕在展开时发生拱起的问题。
为了提高连杆机构200的变形稳定性，本公开实施例公开的铰链机构中，连杆机构200还可以包括第三连杆230和第四连杆240，相邻的两根轴100 中，一者与第三连杆230的第一端铰接，另一者与第四连杆240的第一端铰接，第三连杆230的第二端与第四连杆240的第二端相铰接。
此种情况下，连杆机构200包含更多的连杆，第三连杆230和第四连杆240在不影响第一连杆210与第二连杆220运行的前提下，协同第一连杆210和第二连杆220一起调整铰链机构的长度。当然，也可以认为是一种冗余设计，此种结构能够在第一连杆210和第二连杆220发生故障时，仍然由第三连杆230和第四连杆240实现铰链机构的正常工作。当然，此种设计还能够避免相邻的两根轴100之间仅通过第一连杆210和第二连杆220连接存在变形过于灵活的问题。
第一连杆210与第二连杆220形成第一连杆组件，第三连杆230和第四连杆240形成第二连杆组件。为了使得第一连杆组件和第二连杆组件在工作过程中变形更加协调，在可选的方案中，本公开实施例公开的铰链机构还可以包括第五连杆250。第五连杆250连接在第一连杆组件与第二连杆组件之间，第五连杆250的第一端可以铰接在第三连杆230与第四连杆240的铰接处，第五连杆250的第二端可以铰接在第一连杆210与第二连杆220的铰接处。第五连杆250起到衔接的作用，能够较容易使得第一连杆组件和第二连杆组件的变形走向一致。
在可选的方案中，第三连杆230与第四连杆240可以以第五连杆250的轴线对称分布。同理，第一连杆210与第二连杆220也可以以第五连杆250为对称中心对称分布。上述对称设置的方式无疑更有利于连杆机构200更为稳定地变形。
本实施例中，轴100可以为普通的圆柱形轴，也可以为其它形状的轴，本实施例不限制轴100的具体形状。请再次参考图3-图6，一种具体的实施方式中，轴100为凸轮轴，凸轮轴包括凸起部，每个凸轮轴的凸起部均位于至少两根轴100形成的轴排的同一侧。轴100采用凸轮轴，能够使得铰链机构处于折叠状态下相邻的轴100之间的结合更加紧凑，有利于提高处于折叠状态下铰链结构的稳定性。在可选的方案中，在铰链机构处于弯曲状态(如图6所示)下，相邻的两个轴100的凸起部相抵触。这无疑能使得处于弯折状态的铰链机构达到最佳的弯曲效果，能够使得整个铰链机构在弯曲状态下 更加紧凑及稳定。
在可选的方案中，第三连杆230的第一端和第四连杆240的第一端分别与相邻的两个轴100的凸起部的端面相铰接，第一连杆210的第一端和第二连杆220的第一端分别与相邻的两个轴100的端面的中心铰接。此种情况下，第一连杆210与第三连杆230之间以及第二连杆220与第四连杆240之间均具有足够的距离，更有利于整个连杆机构200的形变。其中，第五连接杆250的长度小于轴100中两个铰接点之间的距离。此种情况下，能够较容易使得第一连杆组件和第二连杆组件的变形走向一致。
如上文所述，连接部300与轴100固定相连。为了减少装配及提高部件的强度，在可选的方案中，连接部300与与其相连的轴100可以为一体式结构。
连接部300上可以设置连接件或连接结构。具体的，连接部300上可以设置有连接孔310。连接部300的结构也可以有多种，一种具体的实施方式中，连接部300可以为连接板。
实现铰接的方式有多种，具体的，轴100的端面上可以固定有铰接轴A，轴100通过相对应的铰接轴A与第一连杆210、第二连杆220、第三连杆230或第四连杆240上的铰接孔配合，进而实现转动配合。同样，第一连杆210与第二连杆220、第五连杆250分别与第一连杆210和第二连杆220、第三连杆230与第四连杆240、第五连杆250分别与第三连杆230和第四连杆240均可以通过套设在铰接轴B的通孔实现转动配合。
基于本公开实施例公开的铰链机构，本公开实施例公开一种移动终端，所公开的移动终端包括柔性屏幕、第一机壳、第二机壳以及上文所述的铰链机构，第一机壳与一个连接部300固定相连，第二机壳与另一个连接部300固定相连，柔性屏幕安装在第一机壳、第二机壳和铰链机构形成的安装区域上。
本公开实施例公开的移动终端可以是手机、平板电脑、电子书阅读器、可穿戴设备等具有柔性屏幕的移动终端。本公开实施例不限制移动终端的具体种类。
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 (11)

  1. 一种铰链机构，包括至少两根成排分布的轴(100)、连杆机构(200)和两个连接部(300)，两个连接部(300)分别与位于最外侧的两根所述轴(100)固定相连，相邻的两根所述轴(100)均通过所述连杆机构(200)相连，所述连杆机构(200)包括第一连杆(210)和第二连杆(220)，相邻的两根所述轴(100)中，一者与所述第一连杆(210)的第一端铰接，另一者与所述第二连杆(220)的第一端铰接，所述第一连杆(210)的第二端与所述第二连杆(220)的第二端铰接，在所述第一连杆(210)和所述第二连杆(220)分别与相邻的两根所述轴(100)铰接的铰接点和所述第一连杆(210)与所述第二连杆(220)的铰接点处于同一条直线上时，相邻的两根所述轴(100)之间具有间隙(400)。
  2. 根据权利要求1所述的铰链机构，其中，所述连杆机构(200)还包括第三连杆(230)和第四连杆(240)，相邻的两根所述轴(100)中，一者与所述第三连杆(230)的第一端铰接，另一者与所述第四连杆(240)的第一端铰接，所述第三连杆(230)的第二端与所述第四连杆(240)的第二端相铰接。
  3. 根据权利要求2所述的铰链机构，其中，所述连杆机构(200)还包括第五连杆(250)，所述第一连杆(210)与所述第二连杆(220)形成第一连杆组件，所述第三连杆(230)与所述第四连杆(240)形成第二连杆组件，所述第五连杆(250)连接在所述第一连杆组件与所述第二连杆组件之间，所述第五连杆(250)的第一端铰接在所述第三连杆(230)与所述第四连杆(240)的铰接处，所述第五连杆(250)的第二端铰接在所述第一连杆(210)与所述第二连杆(220)的铰接处。
  4. 根据权利要求3所述的铰链机构，其中，所述第三连杆(230)与第四连杆(240)以及第一连杆(210)与所述第二连杆(220)均以所述第五连杆(250)的轴线对称分布。
  5. 根据权利要求4所述的铰链机构，其中，所述轴(100)均为凸轮轴，所述凸轮轴的凸起部均位于至少两根所述轴(100)形成的轴排的同一侧，所 述第三连杆(230)的第一端和第四连杆(240)的第一端分别与相邻的两个所述轴(100)的所述凸起部的端面相铰接，所述第一连杆(210)的第一端和所述第二连杆(220)的第一端分别与相邻的两个所述轴(100)的端面的中心铰接。
  6. 根据权利要求5所述的铰链机构，其中，在所述铰链机构处于弯曲状态下，相邻的两个所述轴(100)的所述凸起部相抵触。
  7. 根据权利要求1所述的铰链机构，其中，所述轴(100)均为凸轮轴，所述凸轮轴的凸起部均位于至少两根所述轴(100)形成的轴排的同一侧。
  8. 根据权利要求1所述的铰链机构，其中，所述连接部(300)上开设有至少两个连接孔(310)。
  9. 根据权利要求1所述的铰链机构，其中，所述连接部(300)为连接板。
  10. 一种移动终端，包括柔性屏幕、第一机壳、第二机壳以及权利要求1-9中任一项所述的铰链机构，所述第一机壳与一个所述连接部(300)固定相连，所述第二机壳与另一个所述连接部(300)固定相连，所述柔性屏幕安装在所述第一机壳、第二机壳和所述铰链机构形成的安装区域上。
  11. 根据权利要求10所述的移动终端，其中，所述移动终端为手机、平板电脑、电子书阅读器或可穿戴设备。
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