WO2022127280A1 - 一种弯折单元、铰链及柔性模组弯折装置 - Google Patents

一种弯折单元、铰链及柔性模组弯折装置 Download PDF

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Publication number
WO2022127280A1
WO2022127280A1 PCT/CN2021/121545 CN2021121545W WO2022127280A1 WO 2022127280 A1 WO2022127280 A1 WO 2022127280A1 CN 2021121545 W CN2021121545 W CN 2021121545W WO 2022127280 A1 WO2022127280 A1 WO 2022127280A1
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WO
WIPO (PCT)
Prior art keywords
bending unit
bending
sliding
along
limit slider
Prior art date
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PCT/CN2021/121545
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English (en)
French (fr)
Inventor
应如波
Original Assignee
合肥维信诺科技有限公司
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Filing date
Publication date
Application filed by 合肥维信诺科技有限公司 filed Critical 合肥维信诺科技有限公司
Priority to KR1020227040927A priority Critical patent/KR20230006520A/ko
Priority to EP21905210.7A priority patent/EP4141271A4/en
Priority to JP2023515228A priority patent/JP7395058B2/ja
Publication of WO2022127280A1 publication Critical patent/WO2022127280A1/zh
Priority to US17/993,283 priority patent/US20230081653A1/en

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Classifications

    • 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
    • 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
    • F16C11/045—Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/06—Hinges with pins with two or more pins
    • 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
    • G06F1/1618—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 the display being foldable up to the back of the other housing with a single degree of freedom, e.g. by 360° rotation over the axis defined by the rear edge of the base enclosure
    • 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
    • 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
    • H04M1/022—The hinge comprising two parallel pivoting axes

Definitions

  • the present application relates to the technical field of flexible module folding terminal design, for example, to a bending unit, a hinge and a flexible module bending device.
  • the mass-produced folding mobile phones and other bending devices on the market are mainly inward or outward folding mobile phones in a single direction. S bending or curling bending, therefore, the hinge shaft design has become the main bottleneck restricting the development of bending equipment.
  • the present application provides a bending unit, a hinge and a bending device for a flexible module, which can realize simultaneous inward and outward bending, S-bending and other forms of bending, and the bending angle and diameter can be adjusted, which can meet the needs of flexible molds. Low stress requirements and application in different scenarios during group bending.
  • a bending unit comprising:
  • a limit slider slidably connected to the connecting block
  • each rotating arm is rotatably connected to one of the transmission blocks, the second end of each rotating arm is connected to the limit slider, and the rotating arm can move along the first The direction slides relative to the limit slider, and can rotate relative to the limit slider.
  • the present application also proposes a hinge, the hinge includes a plurality of rotating shafts and a plurality of the above-mentioned bending units, the rotating shafts extend along the second direction, and two ends of the rotating shafts are respectively fixedly connected with a transmission of the bending units The two adjacent rotating shafts are linked together through a bending unit.
  • the present application also proposes a flexible module bending device, and the flexible module bending device includes the above-mentioned hinge.
  • the bending unit proposed in the present application includes two transmission blocks, each transmission block has a tooth portion, and the two transmission blocks are meshed by the tooth portion; the two transmission blocks are respectively rotatably connected with the connecting block, and the connecting block is also slidably connected to the limit One end of the two rotating arms is respectively connected to a transmission block correspondingly, and the other end is connected to the limit slider.
  • the rotating arm can slide relative to the limit slider along the first direction, and can be relative to the second direction relative to The limit slider rotates, and the first direction is perpendicular to the second direction.
  • the hinge proposed by the utility model includes a plurality of rotating shafts and a plurality of the above-mentioned bending units.
  • the rotating shafts extend along the second direction and the two ends of the rotating shafts are respectively fixedly connected with a transmission block of a bending unit. Folding units realize linkage connection.
  • the flexible module bending device proposed by the present invention includes the above-mentioned hinge.
  • the bending unit proposed in the present application can realize the stroke adjustment in the third direction through the sliding cooperation of the limit slider and the connecting block, and realize the stroke adjustment in the first direction and perpendicular to the second direction through the cooperation of the limit slider and the rotating arm.
  • the angle adjustment in the plane of the direction realizes the multi-degree-of-freedom adjustment of the bending unit, realizes the adjustment of the rotation angle of the transmission block, thereby realizes the adjustment of the bending arc and the bending diameter of the hinge with the bending unit, so that the hinge can simultaneously Bending in various forms such as inward and outward folding, as well as S-bending; the limit slider and rotating arm can be designed separately, so that the bending arc and angle of each bending unit can be designed differently, and the upper and lower arcs and angles can also be designed.
  • the bending unit can realize miniaturization design, thereby improving the force condition of the surface unit area when the hinge is bent.
  • the adjustable diameter can not only realize multi-form bending methods, but also reduce the stress on the flexible module during the bending process, which is suitable for different application scenarios, thereby extending the service life of the flexible module.
  • FIG. 1 is a schematic structural diagram of a bending unit provided in an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a transmission block of a bending unit provided by an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a limit slider of a bending unit provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a rotating arm of a bending unit provided by an embodiment of the present application.
  • FIG. 5 is a front view of the hinge folded inward provided by an embodiment of the present application.
  • FIG. 6 is a front view of the hinge provided by the embodiment of the present application folded out
  • FIG. 7 is a front view of the bending of the hinge S provided by the embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a partial structure of a bent hinge S provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a bending unit provided by an embodiment of the present application.
  • the bending unit 100 provides a bending unit 100, as a constituent unit of the hinge 200, the bending unit 100 can realize multi-degree-of-freedom adjustment, that is, realize adjustment of the rotation angle.
  • the bending unit 100 includes two transmission blocks 1 , a connecting block 2 , a limit slider 3 and two rotating arms 4 , wherein each transmission block 1 has a tooth portion 11 , and the two Each transmission block 1 is meshed with the teeth 11, and the two transmission blocks 1 are respectively connected with the connection block 2 in rotation; the limit slider 3 is slidably connected to the connection block 2; one end of each rotating arm 4 is correspondingly rotatably connected to a transmission block 1.
  • the other end is connected to the limit slider 3, the rotating arm 4 can slide relative to the limit slider 3 along the first direction a, and can rotate relative to the limit slider 3 around the second direction b, the first direction a perpendicular to the second direction b.
  • the first direction a in this embodiment is defined with the limit slider 3 in each bending unit 100 as a reference, and the second direction b is a direction perpendicular to the paper surface.
  • the rotating arm 4 rotates on a plane parallel to the paper surface.
  • the limit slider 3 is provided with a chute 31 along the first direction, and the limit slider 3 is T-shaped, including a first sliding part 32 arranged along the first direction a and a second sliding part 32 arranged along the third direction c
  • the first sliding part 32 is provided with a sliding groove 31, the rotating arm 4 is connected in the sliding groove 31, and the second sliding part 33 is slidably connected to the connecting block 2 along the third direction c.
  • the connecting block 2 is provided with a sliding hole along the third direction c, and the second sliding portion 33 is slidably arranged in the sliding hole.
  • the first direction a, the second direction b and the third direction c are perpendicular to each other.
  • the notch of the chute 31 penetrates the top of the limit slider 3 along the third direction c, so that the rotating arm 4 can not only slide in the first direction a in the chute 31, but also in the second direction in the chute 31 bDeflection.
  • the top of the limit slider 3 is not completely penetrated along the first direction a, and the middle part is closed and the two sides are open. This structure can ensure the structural strength of the limit slider 3.
  • the top of the limiting slider 3 can also be completely penetrated along the first direction a.
  • the rotating arm 4 includes a rotating head 41 , a sliding elbow 42 and a disengagement prevention end 43 connected in sequence, wherein the rotating head 41 is rotatably connected to the transmission block 1 , and the disengagement prevention end 43 is always located in the chute 31 .
  • the length of the sliding elbow 42 is designed to prevent the anti-releasing end 43 from escaping from the chute 31 when the curvature of the bending unit 100 reaches the maximum.
  • the chute 31 in this embodiment includes a cylindrical groove and a bar-shaped groove connected to the notch of the cylindrical groove.
  • the notch of the bar-shaped groove penetrates the top of the limit slider 3, and the anti-drop end 43 is spherical and located in the cylindrical groove.
  • the diameter of the anti-detachment end portion 43 is smaller than or equal to the diameter of the cylindrical groove.
  • the disengagement prevention end 43 can also be provided in a square, cuboid or other shape, as long as it is ensured that it does not come out of the cylindrical groove.
  • the sliding elbow 42 is cylindrical or prismatic, and the diameter of the sliding elbow 42 is not larger than the width of the slot of the strip groove, so that the rotating arm 4 can slide and rotate in the sliding groove 31 .
  • the sliding groove 31 is arranged as a through groove along the first direction a to accommodate the different sliding lengths of the two rotating arms 4 .
  • the rotating head 41 is annular, and the through hole in the middle is used for pin connection with the transmission block 1 .
  • the sliding elbow 42 is in the shape of a round rod, which is fixed to the outer circumference of the rotating head 41 . And the diameter of the sliding elbow 42 is smaller than the diameter of the sliding slot 31 .
  • the rotating head 41, the sliding elbow 42 and the anti-falling end 43 are integrally formed, and the processing is convenient.
  • the tooth portion 11 of the transmission block 1 is in the shape of a rectangle, and opposite end surfaces of the tooth portion 11 are respectively provided with a plurality of teeth to engage with the tooth portion 11 of the adjacent transmission block 1 .
  • a connecting arm 12 is fixedly connected to the tooth portion 11 , and the connecting arm 12 is rotatably connected with the rotating arm 4 .
  • the head of the connecting arm 12 is annular, and the connecting arm 12 and the rotating head 41 are connected by the second pin 7 to realize the relative rotation of the two.
  • one of the head of the connecting arm 12 and the rotating head 41 is configured as a ring, and the other is provided with a pin (in place of the second pin 7 ) passing through the ring, and the connection can also be realized
  • the arm 12 and the rotating head 41 are pinned.
  • connection block 2 is provided with a first connection hole along the second direction b
  • tooth portion 11 is provided with a second connection hole 13 along the second direction b
  • first pin shaft 5 penetrates through the first connecting hole and the second connecting hole 13
  • one of the connecting block 2 and the toothed portion 11 is provided with a connecting hole, and the other is provided with a pin shaft (instead of the first pin shaft 5) passing through the connecting hole, and the connecting block 2 and the toothed portion can also be realized. 11 pin connections.
  • This embodiment also provides a hinge 200, as shown in FIG. 5 to FIG. 8, the hinge 200 includes a plurality of rotating shafts 6 and a plurality of the above-mentioned bending units 100, the rotating shaft 6 extends along the second direction b and its two ends
  • the transmission blocks 1 with a bending unit 100 are respectively fixedly connected, and the two adjacent rotating shafts 6 are linked together by a bending unit 100 .
  • This embodiment also provides a flexible module bending device, and the flexible module bending device includes the above-mentioned hinge 200 .
  • the flexible module bending device may be a product with a display function, such as a mobile phone, a notebook computer, and a display.
  • the bending unit 100 in this embodiment can realize the stroke adjustment in the third direction c through the sliding cooperation of the limit slider 3 and the connecting block 2 , and realize the first direction a through the cooperation of the limit slider 3 and the rotating arm 4 Stroke adjustment and angle adjustment in the plane perpendicular to the second direction b, realize the adjustment of the bending unit 100 with multiple degrees of freedom, realize the adjustment of the rotation angle of the transmission block 1, and realize the hinge 200 with the bending unit 100.
  • the hinge 200 of the multi-unit linkage structure has adjustable bending arc and diameter, which can not only realize multi-form bending methods, but also reduce the bending of flexible modules.
  • the stress in the process is suitable for different application scenarios, thereby extending the service life of the flexible module.
  • This embodiment provides a bending unit 100 , which is basically the same in structure as the bending unit 100 in the first embodiment, and the only difference is the connection between the rotating arm 4 and the limit slider 3 .
  • the limit slider 3 is provided with a U-shaped groove, the anti-detachment end 43 of the rotating arm 4 is annular, and the anti-detachment ends 43 of the two rotating arms 4 are located in the U-shaped groove, and the three pass through along the No.
  • the third pin shafts penetrated in the two directions b are connected to realize the relative rotation of the rotating arm 4 and the limiting slider 3 .

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Telephone Set Structure (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

一种弯折单元（100）、铰链（200）及柔性模组弯折装置，该弯折单元（100）包括两个齿牙啮合的传动块（1），两个传动块（1）分别与连接块（2）转动连接，连接块（2）上滑动连接限位滑块（3），两个转动臂（4）中的每个转动臂（4）的第一端分别对应转动连接于一传动块（1），每个转动臂（4）的第二端连接于限位滑块（3），转动臂（4）能沿第一方向（a）相对于限位滑块（3）滑动，并能相对于限位滑块（3）转动。

Description

一种弯折单元、铰链及柔性模组弯折装置
本申请要求在2020年12月15日提交中国专利局、申请号为202023020348.7的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及柔性模组折叠终端设计技术领域，例如涉及一种弯折单元、铰链及柔性模组弯折装置。
背景技术
目前市面上量产的折叠手机等弯折设备主要是单一方向的内折或外折手机，铰链转轴的设计主要也是内折或外折转轴，而无法同时实现内外折(360°弯折)和S弯折或卷曲弯折，因此，铰链转轴设计成为制约弯折设备发展的主要瓶颈。
因此，亟需提出一种弯折单元、铰链及柔性模组弯折装置，以改善相关技术中存在的上述情况。
发明内容
本申请提供一种弯折单元、铰链及柔性模组弯折装置，可实现同时内折和外折，以及S弯曲等多种形态的弯曲，且弯折角度和直径可调，可满足柔性模组弯折过程中低应力要求和不同场景应用。
本申请所采用的技术方案是：
一种弯折单元，包括：
两个传动块，每个所述传动块具有齿部，两个所述传动块通过所述齿部啮合；
连接块，两个传动块分别与所述连接块转动连接；
限位滑块，滑动连接于所述连接块；
两个转动臂，每个所述转动臂的第一端对应转动连接于一所述传动块，每个转动臂的第二端连接于所述限位滑块，所述转动臂能沿第一方向相对于所述 限位滑块滑动，并能相对于所述限位滑块转动。
本申请还提出了一种铰链，所述铰链包括多根转轴和多个如上所述的弯折单元，所述转轴沿第二方向延伸且其两端分别固定连接有一所述弯折单元的传动块，相邻的两根所述转轴之间通过一所述弯折单元实现联动连接。
本申请还提出了一种柔性模组弯折装置，所述柔性模组弯折装置包括上述的铰链。
本申请提出的弯折单元，包括两个传动块，每个传动块具有齿部，两个传动块通过齿部啮合；两个传动块分别与连接块转动连接，连接块上还滑动连接限位滑块，两个转动臂的一端分别对应转动连接于一传动块，另一端连接于限位滑块，转动臂能沿第一方向相对于限位滑块滑动，并能绕第二方向相对于限位滑块转动，第一方向垂直于第二方向。本实用新型提出的铰链包括多根转轴和多个上述弯折单元，转轴沿第二方向延伸且其两端分别固定连接有一弯折单元的传动块，相邻的两根转轴之间通过一弯折单元实现联动连接。本实用新型提出的柔性模组弯折装置包括上述的铰链。
本申请提出的弯折单元能够通过限位滑块和连接块的滑动配合实现第三方向上的行程调节，通过限位滑块和转动臂的配合实现第一方向上的行程调节和垂直于第二方向的平面内的角度调节，实现弯折单元多自由度调节，实现了传动块的转动角度的调节，从而实现具有该弯折单元的铰链的弯曲弧度和弯曲直径的调节，使得该铰链能够同时进行内折和外折，以及S弯曲等多种形态的弯曲；限位滑块和转动臂可以单独设计，使得每个弯折单元的弯曲弧度和角度可以不同设计，上下面弧度和角度也可不同设计；弯折单元可实现小型化设计，从而改善铰链弯曲时曲面单位面积的受力状况，弯折单元越小曲面单位面积受力越小，同时多单元联动结构的铰链，其弯曲弧度和直径可调，不仅能实现多形态的弯曲方式，还能降低柔性模组弯曲过程中所受应力，适用于不同的应用场景，从而延长柔性模组的使用寿命。
附图说明
图1是本申请实施例提供的弯折单元的结构示意图；
图2是本申请实施例提供的弯折单元的传动块的结构示意图；
图3是本申请实施例提供的弯折单元的限位滑块的结构示意图；
图4是本申请实施例提供的弯折单元的转动臂的结构示意图；
图5是本申请实施例提供的铰链内折的主视图；
图6是本申请实施例提供的铰链外折的主视图；
图7是本申请实施例提供的铰链S弯曲的主视图；
图8是本申请实施例提供的铰链S弯曲的部分结构的结构示意图；
图9是本申请实施例提供的弯折单元的结构示意图。
具体实施方式
为使本申请实施例的技术方案更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本申请实施例的组件可以以各种不同的配置来布置和设计。
本实施例提供了一种弯折单元100，作为铰链200的构成单元，该弯折单元100能够实现多自由度调节，即实现转动角度的调节。如图1至图4所示，该弯折单元100包括两个传动块1、连接块2、限位滑块3和两个转动臂4，其中，每个传动块1具有齿部11，两个传动块1通过齿部11啮合，且两个传动块1分别与连接块2转动连接；限位滑块3滑动连接于连接块2；每个转动臂4的一端对应转动连接于一传动块1，另一端连接于限位滑块3，转动臂4能沿第一方向a相对于限位滑块3滑动，并能绕第二方向b相对于限位滑块3转动，第一方向a垂直于第二方向b。本实施例中的第一方向a以每个弯折单元100中的限位滑块3为基准而限定，第二方向b为垂直于纸面的方向。所述转动臂4在与纸面平行的平面上转动。
限位滑块3上沿第一方向设置有滑槽31，限位滑块3呈T字型，包括沿第一方向a设置的第一滑动部32和沿第三方向c设置的第二滑动部33，第一滑动部32上设置有滑槽31，转动臂4连接在滑槽31中，第二滑动部33沿第三方向c滑动连接于连接块2。例如，连接块2上沿第三方向c开设有滑孔，第二滑动部33滑动设置于滑孔中。第一方向a、第二方向b和第三方向c两两垂直。
滑槽31的槽口沿第三方向c贯穿限位滑块3的顶部，以使转动臂4不仅能在滑槽31中沿第一方向a滑动，还能在滑槽31中绕第二方向b偏转。例如限位滑块3的顶部沿第一方向a并非完全贯通，其中部封闭两侧敞开，该结构可 保证限位滑块3的结构强度。当然，限位滑块3的顶部也可沿第一方向a完全贯通。
转动臂4包括依次连接的转动头部41、滑动肘部42和防脱端部43，其中，转动头部41转动连接于传动块1，防脱端部43始终位于滑槽31中。为使防脱端部43始终位于滑槽31中，滑动肘部42的长度设计以在弯折单元100的曲率达到最大时防止防脱端部43脱离滑槽31为原则。
本实施例中的滑槽31包括圆柱形槽和连通于圆柱形槽槽口的条形槽，条形槽的槽口贯穿限位滑块3的顶部，防脱端部43呈球形且位于圆柱形槽中，防脱端部43的直径小于或等于圆柱形槽的直径。防脱端部43也可设置成正方体、长方体或其他形状，只要确保其不会从圆柱形槽中脱离。滑动肘部42呈圆柱形，也可为棱柱状，且滑动肘部42的直径不大于条形槽的槽口宽度，以使得转动臂4可在滑槽31中滑动和转动。滑槽31沿第一方向a设置为通槽，以适应两个转动臂4不同的滑动长度。
转动头部41呈圆环状，其中间的通孔用于与传动块1销连接。滑动肘部42呈圆杆状，其固连于转动头部41的外周。且滑动肘部42的直径小于滑槽31的直径。转动头部41、滑动肘部42和防脱端部43一体成型，加工方便。
在本实施例中，传动块1的齿部11呈类矩形体，齿部11的相对两端面分别设有若干齿牙，以与相邻的传动块1的齿部11啮合。齿部11上固连有连接臂12，连接臂12与转动臂4转动连接。连接臂12的头部呈环形，连接臂12和转动头部41通过第二销轴7连接，以实现二者的相对转动。或者，连接臂12的头部和转动头部41中的一者设为环状，另一者设置有穿越所述环状的销轴(替代第二销轴7)，也可实现所述连接臂12和转动头部41销接。
为实现传动块1与连接块2的连接，连接块2上沿第二方向b设置有第一连接孔，齿部11上沿第二方向b贯穿设置有第二连接孔13，第一销轴5穿设于第一连接孔和第二连接孔13。或者，连接块2和齿部11中的其中之一设置有连接孔，另一者设置有穿越所述连接孔的销轴(替代第一销轴5)，也可实现连接块2和齿部11销接。
本实施例还提供了一种铰链200，如图5至图8所示，该铰链200包括多根转轴6和多个上述的弯折单元100，转轴6沿第二方向b延伸且其两端分别固定连接有一弯折单元100的传动块1，相邻的两根转轴6之间通过一弯折单元100实现联动连接。
本实施例还提供了一种柔性模组弯折装置，该柔性模组弯折装置包括上述的铰链200。示例性地，该柔性模组弯折装置可以是手机、笔记本电脑、显示器等具有显示功能的产品。
本实施例中的弯折单元100能够通过限位滑块3和连接块2的滑动配合实现第三方向c上的行程调节，通过限位滑块3和转动臂4的配合实现第一方向a上的行程调节和垂直于第二方向b的平面内的角度调节，实现弯折单元100多自由度调节，实现了传动块1的转动角度的调节，从而实现具有该弯折单元100的铰链200的弯曲弧度和弯曲直径的调节，使得该铰链200能够同时进行内折(内卷曲)和外折(外卷曲)，以及S弯曲等多种形态的弯曲；限位滑块3和转动臂4可以单独设计，使得每个弯折单元100的弯曲弧度和角度可以不同设计，上下面弧度和角度也可不同设计；弯折单元100可实现小型化设计，从而改善铰链200弯曲时曲面单位面积的受力状况，弯折单元100越小曲面单位面积受力越小，同时多单元联动结构的铰链200，其弯曲弧度和直径可调，不仅能实现多形态的弯曲方式，还能降低柔性模组弯曲过程中所受应力，适用于不同的应用场景，从而延长柔性模组的使用寿命。
本实施例提供了一种弯折单元100，该弯折单元100与实施例一中的弯折单元100结构基本相同，区别仅在于转动臂4和限位滑块3之间的连接方式不同。
如图9所示，本实施例中的限位滑块3和两个转动臂4之间仅能实现绕第二方向b的转动连接，例如为销连接。该结构降低了制造难度和成本。
限位滑块3上设置有U型槽，转动臂4的防脱端部43呈环形，两个转动臂4的防脱端部43均位于U型槽中，且三者之间通过沿第二方向b穿设的第三销轴连接，实现转动臂4与限位滑块3的相对转动。

Claims (17)

  1. 一种弯折单元，包括：
    两个传动块，每个所述传动块具有若干齿部，两个所述传动块通过所述齿部啮合；
    连接块，两个传动块分别与所述连接块转动连接；
    限位滑块，滑动连接于所述连接块；两个转动臂，每个所述转动臂的第一端对应转动连接于一所述传动块，每个所述转动臂的第二端连接于所述限位滑块，所述转动臂能沿第一方向相对于所述限位滑块滑动，并能相对于所述限位滑块转动。
  2. 根据权利要求1所述的弯折单元，其中，所述转动臂绕第二方向转动，所述第二方向与所述第一方向垂直。
  3. 根据权利要求1所述的弯折单元，其中，所述传动块还包括：
    连接臂，固连于所述齿部，所述连接臂与所述转动臂转动连接。
  4. 根据权利要求3所述的弯折单元，第二连接孔，沿所述第二方向贯穿设置于所述齿部，所述传动块及所述连接块销接。
  5. 根据权利要求4所述的弯折单元，所述连接块上沿所述第二方向设置有第一连接孔，所述传动块及所述连接块通过第一销轴穿设于所述第一连接孔和所述第二连接孔的方式连接。
  6. 根据权利要求4所述的弯折单元，其中，
    所述限位滑块上沿所述第一方向设置有滑槽，所述转动臂连接于所述滑槽中。
  7. 根据权利要求6所述的弯折单元，其中，所述转动臂包括依次连接的：
    转动头部，转动连接于所述传动块；
    滑动肘部；
    防脱端部，始终位于所述滑槽中。
  8. 根据权利要求7所述的弯折单元，其中，所述连接臂和所述转动臂的转动头部销接。
  9. 根据权利要求7所述的弯折单元，其中，
    所述滑槽包括圆柱形槽和连通于所述圆柱形槽槽口的条形槽；
    所述防脱端部位于所述圆柱形槽中，所述滑动肘部呈柱形，所述滑动肘部的直径小于或等于所述条形槽的槽口宽度。
  10. 根据权利要求7所述的弯折单元，其中，所述转动头部、所述滑动肘 部和所述防脱端部一体成型。
  11. 根据权利要求7所述的弯折单元，其中，
    所述限位滑块呈T字型，包括沿所述第一方向设置的第一滑动部和沿第三方向设置的第二滑动部，所述第一滑动部上设置有所述滑槽，所述第二滑动部沿所述第三方向滑动连接于所述连接块，所述第一方向、所述第二方向和所述第三方向两两垂直。
  12. 根据权利要求11所述的弯折单元，其中，
    所述连接块上沿所述第三方向开设有滑孔，所述第二滑动部滑动设置于所述滑孔中。
  13. 根据权利要求11所述的弯折单元，其中，所述滑槽的槽口沿所述第三方向贯穿所述限位滑块的顶部，所述限位滑块沿所述第三方向相对于连接块运动时，所述滑动肘部在槽口移动。
  14. 根据权利要求13所述的弯折单元，其中，所述滑槽包括圆柱形槽和连通于所述圆柱形槽槽口的条形槽，所述条形槽沿所述第一方向中部封闭，且所述条形槽的两端敞开。
  15. 根据权利要求13所述的弯折单元，其中，所述滑槽包括圆柱形槽和连通于所述圆柱形槽槽口的条形槽，所述条形槽沿所述第一方向贯通。
  16. 一种铰链，包括多根转轴和多个如权利要求1-15任一项所述的弯折单元，所述转轴沿第二方向延伸且其两端分别固定连接有一所述弯折单元的传动块，相邻的两根所述转轴之间通过一所述弯折单元实现联动连接。
  17. 一种柔性模组弯折装置，包括权利要求16所述的铰链。
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