WO2021016752A1 - 一种弯折装置和柔性装置 - Google Patents

一种弯折装置和柔性装置 Download PDF

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Publication number
WO2021016752A1
WO2021016752A1 PCT/CN2019/097962 CN2019097962W WO2021016752A1 WO 2021016752 A1 WO2021016752 A1 WO 2021016752A1 CN 2019097962 W CN2019097962 W CN 2019097962W WO 2021016752 A1 WO2021016752 A1 WO 2021016752A1
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WO
WIPO (PCT)
Prior art keywords
hinge unit
bending
bending device
slider
link mechanism
Prior art date
Application number
PCT/CN2019/097962
Other languages
English (en)
French (fr)
Inventor
欧阳烁
陈松亚
凡小飞
余华灵
刘文俊
Original Assignee
深圳市柔宇科技有限公司
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 深圳市柔宇科技有限公司 filed Critical 深圳市柔宇科技有限公司
Priority to CN201980090111.7A priority Critical patent/CN113383380A/zh
Priority to PCT/CN2019/097962 priority patent/WO2021016752A1/zh
Publication of WO2021016752A1 publication Critical patent/WO2021016752A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements

Definitions

  • This application relates to the field of electronic devices, in particular to a bending device and a flexible device.
  • Flexible screens will have a profound impact on the electronic terminal market due to their low power consumption and bendable characteristics. In the future, flexible screens will be widely used with the continuous penetration of personal smart terminals.
  • the application provides a bending device and a flexible device.
  • the present application provides a bending device, including a bending piece that can be bent, a slider, and a top rod.
  • the bending piece has an inner surface facing away from the flexible screen, and a guide portion is provided on the inner surface , The guide portion has an arc surface;
  • the slider is provided on one side of the bending piece, one end of the ejector rod is fixed on the slider, and the other end of the ejector rod is slidably connected to the On the bending piece, and the other end of the ejector pin abuts on the arc-shaped surface of the guide part; when the bending piece is bent from the flat state to the bent state, the ejector pin The other end can slide along the arc-shaped surface to drive the slider to move in a direction close to the bending piece.
  • the present application also provides a bending device, including a bendable bendable member, a sliding block, and a limiter.
  • a bending device including a bendable bendable member, a sliding block, and a limiter.
  • the sliding block is relative to the bendable
  • the bending member slides, and the limiting member is located between the bendable member and the sliding block.
  • the present application also provides a flexible device, including a flexible screen and a bending device, the flexible screen has a bending part, and the bending part is facing the bending part.
  • the bending device provided by the embodiment of the present application provides that when the bending device is bent, since the trajectory of the curved surface corresponds to the trajectory of the bending piece, the ejector rod can slide along the curved surface to drive the sliding The block slides in the direction close to the bending part, so that when the flexible screen is attached to the slider, the slider can make the flexible screen shrink in the bent state, and prevent the flexible screen from bending when the part is aligned with the bending device.
  • the folding part is severely stressed and damaged, thereby improving the reliability of the folding device applied to the folding device.
  • FIG. 1 is a schematic structural diagram of a bending device in a flat state according to an embodiment of the application
  • Figure 2 is a schematic structural view of the bending device of Figure 1 in a folded state
  • FIG. 3 is a schematic structural diagram of the bending device of FIG. 1 from another perspective;
  • FIG. 4 is a schematic structural diagram from another perspective of the bending device of FIG. 1;
  • FIG. 5 is a schematic structural diagram of the first link mechanism in the bending device of FIG. 4;
  • Figure 6 is a schematic structural diagram of the bending device of Figure 1;
  • FIG. 7 is a schematic structural diagram of the bending device of FIG. 1 from another perspective
  • Fig. 8 is a partial schematic view of the VIII part of the bending device of Fig. 7;
  • Fig. 9 is a structural schematic diagram of the bending device of Fig. 1 further provided with a slider and a jack;
  • Figure 10 is a partial schematic view of the VIV of the bending device of Figure 9;
  • Fig. 11 is a structural schematic diagram of the bending device of Fig. 1 further provided with a support plate and a flexible member;
  • Figure 12 is a partial schematic view of the XII section of the bending device of Figure 11;
  • Fig. 13 is a schematic structural view of the bending device of Fig. 9 from another angle.
  • FIG. 1 is a schematic diagram of the bending device 100 provided in an embodiment of the application in a flattened state.
  • the bending device 100 can be bent and can be applied to flexible devices that need to be bent.
  • the flexible device may be a terminal device such as a flexible mobile terminal and a flexible tablet.
  • the two ends of the bending device 100 arranged opposite to each other can connect the first structural member 200 and the second structural member 300.
  • FIG. 2 is a schematic diagram of the bending device 100 in FIG. 1 in a folded state.
  • the first structural member 200 and the second structural member 300 can be stacked under the bending of the bending device 100, thereby facilitating the storage of the flexible device.
  • FIG. 3 is another schematic diagram of the bending device 100 in FIG. 1.
  • the bending device 100 includes a bending member, and the bending member may include a first hinge unit 1, a second hinge unit 2, and a first link mechanism 6, the first link mechanism 6 being hinged to the first Between the hinge unit 1 and the second hinge unit 2 so that the first hinge unit 1 and the second hinge unit 2 rotate relatively.
  • FIG. 2 when the bending device 100 is in the folded state, the length of the first link mechanism 6 is the smallest, and as shown in FIG. 3, when the bending device 100 is in the flat state, the first The link mechanism 6 has the longest length.
  • the first hinge unit 1 and the second hinge unit 2 realize the connection of the two hinge units by changing the length of the first link mechanism 6, and the first hinge unit 1 and the second hinge unit
  • the units 2 can be rotated relative to each other, that is, folded, the connection mode of the linkage mechanism has high precision in transferring movement, simple structure and low cost.
  • the number of the first link mechanisms 6 is two groups, and the two sets of first link mechanisms 6 are respectively arranged along the length direction of the first hinge unit 1.
  • the bending device 100 is provided with two sets of first link mechanisms 6 between the first hinge unit 1 and the second hinge unit 2, so that the transmission of the first hinge unit 1 and the second hinge unit 2 is more stable and further improved The reliability of the bending device 100.
  • the first hinge unit 1 and the second hinge unit 2 move symmetrically in opposite directions under the transmission of the first link mechanism 6.
  • the first hinge unit 1 also rotates toward the inner side of the second hinge unit 2 under the transmission of the first link mechanism 6.
  • the first hinge unit 1 and the second hinge unit 2 may be bent into a U shape.
  • the structure of the bending device 100 facilitates the folding and storage of the flexible device when it is applied to a flexible device.
  • the first hinge unit 1 and the second hinge unit 2 can be bent into an S shape under the transmission action of the first link mechanism 6.
  • the first hinge unit 1 rotates toward the inner side of the second hinge unit 2
  • the second hinge unit 2 rotates toward the outer side of the first hinge unit 1 under the transmission of the first link mechanism 6.
  • the first connecting rod mechanism 6 includes a first crank 61, a first connecting rod 62, a second crank 63, and a second connecting rod 64; One end is hinged to the first hinge unit 1, the first end of the first link 62 is hinged to the second end of the first crank 61, and the second end of the first link 62 is hinged to the The second hinge unit 2; the first end of the second crank 63 is hinged to the second hinge unit 2, and the first end of the second connecting rod 64 is hinged to the second end of the second crank 63 , The second end of the second link 64 is hinged to the first hinge unit 1.
  • the first link 62 and the second link 64 intersect at a hinge point, and the first link 62 and the second link 64 are hinged at the hinge point.
  • the first hinge unit 1 has a first bottom plate 11 and two first brackets 12.
  • the first bottom plate 11 is substantially elongated and extends along the first direction X.
  • the two first brackets 12 extend along the A direction X is provided on the inner surface of the first bottom plate 11 so that the two sets of first link mechanisms 6 can be arranged along the length direction of the first hinge unit 1.
  • the second hinge unit 2 has a second bottom plate 21 and two second brackets 22.
  • the second bottom plate 21 is substantially elongated and extends along the first direction X.
  • the two second brackets 22 are arranged along the first direction X. On the inner surface of the second bottom plate 21.
  • One end of the first link mechanism 6 is connected to the first bracket 12, and the other end of the first link mechanism 6 is connected to the second bracket 22.
  • a group of first link mechanisms 6 are connected to the first bracket 12 and the second bracket 22 as an example: the first crank 61 has a first through hole 611 and a second through hole arranged at intervals, The pin passes through the first through hole 611 of the first crank 61 and the first bracket 12 in order to hinge the first crank 61 to the first bracket 12; the length of the first connecting rod 62 is greater than the length of the first crank 61, The first connecting rod 62 has a third through hole 621, a fourth through hole 622, and a fifth through hole 623 that are sequentially spaced apart, and the pin passes through the third through hole 621 and the second through hole in order to connect the first connecting rod 62 is hinged to the first crank 61, passes through the fifth through hole 623 by a pin, and is hinged to the side of the second bottom plate 21 close to the first bottom plate 11 to simultaneously hinge the first connecting rod 62 to the second bottom plate 21 .
  • the second connecting rod 64 has a sixth through hole 641, a seventh through hole 642, and an eighth through hole 643 that are sequentially spaced apart.
  • the pin passes through the seventh through hole 642 and the fourth through hole 622 in order to connect the second
  • the rod 64 is hinged to the first link 62, passes through the sixth through hole 641 by a pin, and is hinged to the side of the first bottom plate 11 close to the second bottom plate 21, so that the second link 64 is hinged to the first bottom plate at the same time 11 on.
  • the structure of the second crank 63 is the same as that of the first crank 61.
  • the second crank 63 has a ninth through hole 631 and a tenth through hole that are spaced apart, and a pin passes through the ninth through hole 631 and the eighth through hole 643 of the second crank 63 in order to hinge the second crank 63 to On the second connecting rod 64, the pin passes through the tenth through hole of the second crank 63 and the second bracket 22 to hinge the second crank 63 to the second bracket 22.
  • the hinge points between the first crank 61, the first connecting rod 62, the second connecting rod 64 and the second crank 63 in the first link mechanism 6 in this embodiment are along the longitudinal direction of the bending device 100, that is, the thickness direction Distribution, in other words, the first crank 61, the first connecting rod 62, the second connecting rod 64, and the second crank 63 are located on different planes, and the planes on which the four are located are parallel to each other.
  • the first crank After being completely bent, the first crank
  • the projections of the crank 61, the first connecting rod 62, the second connecting rod 64 and the second crank 63 on any plane parallel to the plane of the first crank 61 fall into the same straight line; similarly, after being completely bent, The projection of the boundary line of the first hinge unit 1 and the second hinge unit 2 on this plane also falls on this straight line. Therefore, the first crank 61, the first connecting rod 62, the second connecting rod 64 and the second crank 6 Effective use of the depth space realizes the linkage of the hinge unit 1 and the hinge unit 2, thereby providing a bending device 100 in which the first hinge unit 1 and the second hinge unit 2 can be compactly arranged.
  • the surfaces of the first hinge unit 1 and the second hinge unit 2 are arc-shaped, and the arc radius is the same; the first hinge unit 1 and the second hinge unit 2 have the same Arc length.
  • the outer surface of the second bottom plate 21 is a convex arc surface with the same curvature as the outer surface of the first bottom plate 11.
  • the arc length of the outer surface of the first bottom plate 11 is the same as the arc length of the outer surface of the second bottom plate 21.
  • FIG. 6 is a schematic structural diagram of the bending device 100 shown in FIG. 1.
  • the bending device 100 in FIG. 6 is in a flattened state.
  • the angle between the first hinge unit 1 and the second hinge unit 2 is Y.
  • the geometric edge of the first hinge unit 1 facing the second hinge unit 2 is a first geometric edge;
  • the geometric edge of the second hinge unit 2 facing the first hinge unit 1 is a second geometric edge;
  • the first crank 61, the second connecting rod 64, and the second geometric side are parallel to each other;
  • the second crank 63, the first connecting rod 62, and the first geometric side are parallel to each other.
  • the second geometric edge and the first geometric edge are respectively collinear with the straight line where the line segment AB is located and the linear geometric edge where the line segment FE is located.
  • the line segment ED is the first crank 61
  • the line segment DA is the first connecting rod 62
  • the line segment BC is the second crank 63
  • the line segment CF is the second connecting rod 64
  • the line segments DA and CF intersect at point G are the first connecting rod 62 and the first connecting rod 62.
  • the line segment DA is parallel to the first geometric edge of the first hinge unit 1
  • the line segment CF is parallel to the second geometric edge of the second hinge unit 2.
  • the structure of the bending device 100 of the mechanism makes the second hinge unit 2 rotate around point O After reaching the Y angle, the second geometric edge coincides with the first geometric edge.
  • the first crank 61, the first connecting rod 62, the second connecting rod 64 and the second crank 63 can be folded to completely overlap, in other words, the length of the first connecting rod mechanism 6 is the smallest.
  • the first geometrical edge and the second geometrical edge are not the edges that actually exist in the structure, but are the edges of the arc itself in a geometric sense.
  • the line segment from the two ends of the arc to the center of the arc is a geometric edge.
  • the first crank 61 and the second crank 63 are the same length; the first connecting rod 62 and the second connecting rod 64 are the same length; the hinge point is the same as the first connecting rod 62 The distance between the first end of the hinge point is equal to the distance between the hinge point and the first end of the second connecting rod 64.
  • the structure of the first crank 61 is the same as that of the second crank 63, and the structure of the first connecting rod 62 is the same as that of the second connecting rod 64.
  • the bending device 100 further includes a third hinge unit 3, and the third hinge unit 3 is hinged to the first hinge unit 1 through a second link mechanism 7.
  • the first hinge unit 1 is located between the second hinge unit 2 and the third hinge unit 3.
  • the structure of the third hinge unit 3 may be the same as the structure of the second hinge unit 2.
  • the position where the second link mechanism 7 is provided on the third hinge unit 3 is mirror-symmetrical with respect to the position where the first link mechanism 6 is provided on the first hinge unit 1 and the second hinge unit 2.
  • the distance between the two third brackets 32 on the third hinge unit 3 is the same as the distance between the two second brackets 22 on the second hinge unit 2.
  • the structure of the second link mechanism 7 is the same as the structure of the first link mechanism 6.
  • the first bottom plate 11 has two first brackets 12 arranged side by side.
  • One first bracket 12 is used for hinged connection with the first crank 61 of the first connecting rod 62, and the other first bracket 12 is used for connecting with the second The first crank 61 of the link mechanism 7 is hinged.
  • the bending device 100 further includes a first linkage member 10 connected to the first link mechanism 6 and the second linkage mechanism 7.
  • the first linkage mechanism 6 rotates to drive the first linkage member 10 to move.
  • the first linkage 10 then drives the second linkage mechanism 7 to rotate.
  • the first linkage 10 is linked to a hinge point where the first linkage mechanism 6 is hinged with the first hinge unit 1 and the second linkage mechanism 7 and the first hinge unit 1 between the hinge points of the hinge, so that the relative movement of the first bending device 100 and the second bending device 100 and the relative movement of the first bending device 100 and the third bending device 100 The movement is inversely symmetrical.
  • the first linkage 10 includes a first linkage gear 101 and a second linkage gear 102 that are meshed and transmitted.
  • the first rotation shaft of the first linkage gear 101 is fixed to the first linkage mechanism 6, and the The second rotating shaft of the second linkage gear 102 is fixed to the second linkage mechanism 7; the first linkage mechanism 6 and the second linkage mechanism 7 are connected to the first linkage gear 101 and the second linkage mechanism 7
  • the interlocking gears 102 are mutually transmitted under the meshing action.
  • the second hinge unit 2 drives the first linkage mechanism 6 to drive, and the second crank 63 and the second linkage 64 of the first linkage mechanism 6 ,
  • the first connecting rod 62 and the first crank 61 move in the overlapping direction, so that the first crank 61 drives the first linkage gear 101 to rotate counterclockwise, and the second linkage gear 102 is driven by the first linkage gear 101 Rotate in a clockwise direction, so that the second linkage gear 102 drives the first crank 61, the first connecting rod 62, the second connecting rod 64, and the second crank 63 in the second linkage mechanism 7 toward the overlapped Directional movement, so that the movement of the third hinge unit 3 and the movement of the second hinge unit 2 are symmetrical, and finally the folding of the bending device 100 is realized.
  • the bending device 100 further includes a fourth hinge unit 4, a fifth hinge unit 5, a third link mechanism 8, a fourth link mechanism 9, a second linkage 20, and The third linkage 30; the fourth hinge unit 4 is hinged to the second hinge unit 2 through a third link mechanism 8, and the fifth hinge unit 5 is hinged to the third hinge through a fourth link mechanism 9 Hinge unit 3; the second linkage 20 is linked to the first linkage mechanism 6 and the third linkage mechanism 8, and the third linkage 30 linkage linkage connects the second linkage mechanism 7 and The fourth link mechanism 9.
  • the bending device 100 has a five-section hinge unit.
  • the fourth hinge unit 4 and the fifth hinge unit 5 are respectively located on the outermost side of the bending device 100 to form two ends of the bending device 100.
  • the structure of the fourth hinge unit 4 and the fifth hinge unit 5 are substantially the same, and the difference lies mainly in the connection position of the link mechanism on the hinge unit.
  • the fourth hinge unit 4 has a fourth bottom plate 41, and the fourth bottom plate 41 can be integrally connected with the first structural member 200.
  • the fourth hinge unit 4 is directly formed on the first structural member 200 to further ensure the connection performance between the fourth hinge unit 4 and the first structural member 200, and the third link mechanism 8 is respectively connected to the fourth bottom plate 41
  • the fourth bracket 42 on the second base plate 21 and the second bracket 22 on the second bottom plate 21 realize the hinge connection between the fourth hinge unit 4 and the second hinge unit 2.
  • the structure of the third link mechanism 8 is the same as the structure of the first link mechanism 6, which will not be repeated here.
  • the structure of the fourth link mechanism 9 is the same as the structure of the first link mechanism 6, which will not be repeated here.
  • the structures of the second linkage member 20 and the third linkage member 30 are the same as the structure of the first linkage member 10, which will not be repeated here.
  • first hinge unit 1, the second hinge unit 2, the third hinge unit 3, the fourth hinge unit 4, and the fifth hinge unit 5 may be the same.
  • number of hinge units in the bending device 100 may be 3, 7, 9, etc.
  • the first bottom plate 11, the second bottom plate 21, the third bottom plate 31, the fourth bottom plate 41, and the fifth bottom plate 51 are all protrudingly provided with tapered protrusions 40, which can further restrict bending The degree of bending of the device 100.
  • the tapered protrusions 40 on two adjacent bottom plates touch the bending device 100 cannot bend further, preventing the bending device 100 from breaking due to excessive bending, and further improving the bending device 100 Reliability.
  • the distance between the two first supports 12 on the first bottom plate 11 in the entire bending device 100 ⁇ the distance between the two second supports 22 the distance between the two third supports 32 ⁇ two
  • the distance between the fourth bracket 42 the distance between the two fifth brackets 52.
  • the first link mechanism 6 further includes a limit block 50, and the limit block 50 is used to limit the first link 62 relative to the second link.
  • the movement of the rod 64 prevents the first hinge unit 1 from over bending after being relatively expanded relative to the second hinge unit 2.
  • the limiting block 50 is arranged on the side of the first connecting rod 62 and is away from the second hinge unit 2.
  • the second connecting rod 64 abuts on the limiting block 50 and cannot be bent further, so that the bending device 100 is in a straight state.
  • the first link 62 of the second link mechanism 7, the third link mechanism 8, and the fourth link mechanism 9 can all be provided with a limit block 50.
  • the limiting block 50 is roughly rectangular.
  • the limiting block 50 is integrally arranged on the side of the first connecting rod 62 and protrudes relative to the first connecting rod 62.
  • the connecting rod 64 rotates to fit on the limiting block 50, the second connecting rod 64 cannot rotate further because it is blocked by the limiting block 50.
  • the limiting block 50 and the second connecting rod 64 are limited by surface-to-surface contact, and the second connecting rod 64 can be further accurately limited to an accurate position through large-area contact.
  • a bending device 100 provided by an embodiment of the present application includes a bendable bendable member, a slider 70, and a stopper.
  • the bending device When 100 is bent, the slider 70 slides relative to the bendable member, and the stopper is located between the bendable member and the slider 70.
  • one end of the limiting member is fixedly connected to one of the bendable member and the slider 70, and the other end of the limiting member is close to the bendable member and the sliding block.
  • the other one in block 70 Preferably, the other end of the ejector rod 80 always keeps abutting against the curved surface when the bending piece is bent, flattened, and during the bending or flattening process.
  • the bendable member may be a bending member
  • the structure of the limiting member may be the structure of the top rod 80.
  • the bending device 100 may include a bending member that can be bent, a slider 70, and a top rod 80.
  • the bending member has an inner surface facing away from the flexible screen, and a guide is provided on the inner surface.
  • the guide portion 60 has an arc-shaped surface 601; the slider 70 is provided on one side of the bending piece, one end of the top rod 80 is fixed on the slider 60, and the top rod The other end of the 80 is slidably connected to the bending piece, and the other end of the ejector rod 80 abuts on the curved surface of the guide portion 60; the bending piece is bent from the flat state to bend During the folding state, the other end of the ejector rod 80 can slide along the arc-shaped surface 601 to drive the slider 70 to move toward the direction of the bending member.
  • the structure of the bending member may include, but is not limited to, the first hinge unit, the second hinge unit, the third hinge unit, the fourth hinge unit, or the fifth hinge unit mentioned in the embodiment shown in FIGS. 1 to 8. At least one combination of hinge units.
  • the structure of the bending member that is the bending member specifically includes a first hinge unit 1, a second hinge unit 2, a third hinge unit 3, a fourth hinge unit 4, a fifth hinge unit 5, and the The first link mechanism 6, the second link mechanism 7, the third link mechanism 8 and the fourth link mechanism 9; the first link mechanism 6 is hinged to the first hinge unit 1 and the first Between the two hinge units 2; the third hinge unit 3 is hinged to the first hinge unit 1 through the second link mechanism 7; the fourth hinge unit 4 is hinged through the third link mechanism 8 In the second hinge unit 2; the fifth hinge unit 5 is hinged to the third hinge unit 3 through a fourth link mechanism 9; the inner surface of the third hinge unit 3 is provided with a guide 60, The slider 70 is provided on one side of the fifth hinge unit 5, and the other end of the top rod 80 is slidably connected to the fifth hinge unit 5.
  • the bending member may also include only the first hinge unit 1 and the second hinge unit 2, and so on.
  • the other end of the stopper remains close to the other of the bendable member and the slider 70.
  • the bending device 100 further includes a supporting plate 400, and the supporting plate 400 is fixed to the slider 70 and the bending member respectively by dispensing glue.
  • the slider 70 may be housed on the second structural member 300
  • the support plate may be a support steel sheet
  • the support plate is fixed on the first structural member 200 and the second structural member 300 by dispensing glue, wherein the support The plate 400 is directly and fixedly connected with the slider 70 housed on the second structural member 300.
  • the portion of the support plate 400 that is aligned with the bending member may be a bendable bending section, and the bending section is fixedly connected to the bending member.
  • the bending piece when the bending piece is bent, it can drive the bending section to bend together.
  • the portion of the support plate 400 aligned with the bending member may be hollowed out.
  • the bending device 100 further includes a flexible member provided on the support plate 400.
  • the flexible member is a flexible screen 500 that can perform display.
  • the flexible member has a backlight surface and a display surface that are arranged opposite to each other, and the backlight surface is located outside the bending of the bending member.
  • the length of the side of the bending device 100 facing the flexible member is maintained within a threshold range during the bending process.
  • the threshold range is the length range of the back surface of the flexible member during the unfolding and bending process.
  • the length range of the bending device 100 during the bending process is maintained within the length range of the back surface of the flexible member during the unfolding and bending process.
  • a flexible screen 400 capable of displaying is further provided on the support plate 400, so that the bending device 100 forms a folding terminal.
  • the other end of the ejector rod 80 can slide along the arc-shaped surface 601 to drive the slider 70 toward the The direction of the bending piece moves.
  • the flexible member has a backlight surface and a display surface disposed opposite to each other, and the backlight surface is located inside the bending of the bending member. In other words, the bending device 100 needs to be flattened to expose the display surface of the flexible member and protect the flexible member.
  • the other of the bendable member and the slider 70 includes a guide surface, and the other end of the limiter is close to the guide surface.
  • the other end of the positioning member is kept close to the guide surface during the bending process of the bending device 100.
  • the guiding surface may be an arc-shaped surface 601.
  • the guiding surface is a concave arc surface.
  • a guide portion 60 is provided on the inner surface of the third hinge unit 3, and the guide portion 60 has an arc-shaped surface 601.
  • the bending device 100 further includes a slider 70 and a jack 80.
  • the slider 70 is provided on one side of the fourth hinge unit 4, one end of the jack 80 is fixed on the slider 70, and the other end of the jack 80 slidably passes through the fifth The hinge unit 5, and the other end of the top rod 80 abuts against the arc-shaped surface 601 of the third hinge unit 3; the trajectory of the arc-shaped surface 601 corresponds to the bending trajectory of the bending device 100 , So that when the bending device 100 is bent from the flat state to the bent state, the other end of the top rod 80 can slide along the curved surface 601.
  • the sliding block 70 moves in a direction close to the third hinge unit 3; when the bending device 100 is in a flat state, the other end of the ejector rod 80 is blocked by the arc surface 601.
  • the end of the tapered protrusion 40 on the third bottom plate 31 is provided with an arc-shaped groove forming a guide portion 60.
  • the arc-shaped groove has a first groove wall and a second groove wall adjacent to each other.
  • the first groove wall It is formed by the end surface of the end of the tapered protrusion 40, the second groove wall is substantially facing the fifth hinge unit 5, and the second groove wall is an arc-shaped surface 601.
  • the curved surface is concave.
  • the ejector rod 80 is integrally connected with the slider 70.
  • the end of the ejector rod 80 away from the slider 70 is protruded with a column 801.
  • the end surface of the column 801 abuts on the first groove wall, and the outer peripheral surface of the column 801 abuts On the arc-shaped surface 601 that is the second groove wall.
  • the bending device 100 is in a flattened state, since the end surface of the cylinder 801 is blocked by the first groove wall, and the outer peripheral surface of the cylinder 801 is blocked by the second groove wall, it is restricted even if the slider 70 is thrust. Live and cannot move.
  • the outer peripheral surface of the cylinder 801 can slide along the second groove wall, and the slider 70 moves closer to the first groove.
  • the three-hinged unit 3 slides in the direction, so that when the flexible screen is attached to the slider 70, the slider 70 can cause the flexible screen to retract when the flexible screen is in the bent state, and prevent the flexible screen from being aligned with the bending device 100.
  • the folding portion is severely stressed and damaged, which further improves the reliability of the folding device 100 applied to the folding device.
  • the ejector rod 80 Since the ejector rod 80 continuously abuts against the arc-shaped surface 601 (that is, the ejector rod 80 is close to the arc-shaped surface 601 and is in contact with the arc-shaped surface 601), when the entire device falls or is hit, the slider 70 will not be affected by external influences. The impact of the impact and shrinkage prevents the flexible screen 500 from being damaged. Further, the ejector rod 80 can also be kept a short distance from the arc-shaped surface 601, that is, the ejector rod 80 is close to the arc-shaped surface but is arranged at a distance from the arc-shaped surface 601, which can also relieve the shrinkage of the slider 70 caused by external impact . In other words, as long as it can be ensured that the ejector rod 80 is close to the curved surface 601, it can effectively prevent or alleviate the shrinkage of the slider 70 caused by external impact.
  • the bending device 100 further includes an elastic member 90 disposed between the bending member and the slider 70, and the elastic member 90 is subjected to the bending The force of the folding member and the slider 70 is compressed and stretched.
  • the elastic member 90 is elastically connected between the fifth hinge unit 5 and the slider 70.
  • the elastic member is a spring and is sleeved on the ejector rod 80 to further prevent the slider 70 from sliding due to the pushing force when the bending device 100 is in the flat state, and to prevent the flexible screen attached to the slider 70 from being affected. damage.
  • the spring is compressed between the fifth hinge unit 5 and the slider 70 to generate an elastic force that pushes the slider 70 away from the fifth hinge 5.
  • the bending device 100 further includes a limiting protrusion 802, which is arranged around the top rod 80 and can abut against the fifth bottom plate 51 on. Specifically, when the bending device 100 is in the flat state, if it receives a pulling force, it will be restricted due to the abutment of the limiting protrusion 802 with the side wall of the fifth hinge unit, and cannot move in the direction away from the fifth hinge unit 5. , To avoid damage to the flexible screen attached to the slider 70.
  • the fourth hinge unit 4 is moved toward the inner surface close to the first hinge unit 1.
  • the second hinge unit 2 moves toward the inner surface of the first hinge unit 1 under the drive of the fourth hinge unit 4.
  • the fourth hinge unit 4 drives the third link mechanism 8 to drive, and the third link
  • the second crank 63, the second connecting rod 64, the first connecting rod 62, and the first crank 61 of the mechanism 8 move in a direction overlapping together, so that the second hinge unit 2 moves toward the inner side of the first hinge unit 1.
  • the surface moves.
  • the first hinge unit 1 is driven by the second hinge unit 2 to move toward the inner surface of the third hinge unit 3, specifically: the first crank 61 in the third linkage mechanism 8 drives the third linkage gear Turning counterclockwise, the fourth linkage gear is driven by the third linkage gear to rotate in the clockwise direction, so that the third linkage gear drives the second crank 63, the second connecting rod 64, and the first connecting rod of the first linkage mechanism 6.
  • the connecting rod 62 and the first crank 61 move in a direction in which they overlap, so that the first hinge unit 1 moves toward the inner surface close to the third hinge unit 3.
  • the third hinge unit 3 moves toward the inner surface of the first hinge unit 1 under the drive of the first hinge unit 1, specifically: the first crank 61 in the first linkage mechanism 6 drives the first linkage
  • the gear 101 rotates counterclockwise, so that the second linkage gear 102 drives the second crank 63, the second connecting rod 64, the first connecting rod 62, and the first crank 61 in the second linkage mechanism 7 to move in the direction overlapping together , So that the third hinge unit 3 moves toward the inner surface of the first hinge unit 1.
  • the fourth hinge unit 4 moves toward the inner surface of the third hinge unit 3 under the drive of the third hinge unit 3, specifically: the first crank 61 in the second linkage mechanism 7 drives the fifth linkage
  • the gear rotates counterclockwise, so that the sixth linkage gear drives the second crank 63, the second connecting rod 64, the first connecting rod 62, and the first crank 61 in the third link mechanism 8 to move toward the overlapping direction, thereby
  • the fifth hinge unit 5 is moved toward the inner surface close to the third hinge unit 3; thus, the bending of the bending device 100 is realized.
  • the fifth hinge unit 5 can also be bent first.
  • the first hinge unit 1 and the second hinge unit 2 of the bending device 100 provided by the embodiment of the present application realize the connection of the two hinge units by changing the length of the first link mechanism 6.
  • the first hinge unit 1 and the second hinge unit 1 The two articulated units 2 can rotate relative to each other, that is, fold, and the connection mode of the link mechanism has high precision in transferring movement, simple structure and low cost.
  • An embodiment of the present application also provides a flexible device, including a flexible screen and a bending device 100.
  • the flexible screen has a bending portion, and the bending portion is directly opposite to the bending device 100.
  • the part of the flexible screen aligned with the slider 70 is fixedly connected to the slider 70.
  • the sliding of the slider 70 keeps the length of the flexible screen in the bent state and in the straight state unchanged.
  • the flexible device is in a flattened state, because the end surface of the column 801 is blocked by the first groove wall, the outer peripheral surface of the column 801 is blocked by the second groove wall, so even if the slider 70 is pushed, it is restricted. Cannot move.
  • the slider 70 can cause the flexible screen to shrink in the bent state, and prevent the flexible screen from being aligned with the bending device 100, that is, the bending part is more stressed. It is large and damaged, which further improves the reliability of the bending device 100 applied to the folding device.
  • the first hinge unit 1 and the second hinge unit 2 of the flexible device realize the connection of the two hinge units by changing the length of the first link mechanism 6, and the first hinge unit 1 and the second hinge unit
  • the units 2 can be rotated relative to each other, that is, folded, the connection mode of the linkage mechanism has high precision in transferring movement, simple structure and low cost.
  • the structure of the bendable member can be other existing bendable structures, in addition to the structure of the bendable part mentioned in the foregoing embodiments, for example, the bendable member can be a flexible elastic sheet Structure, or the bendable member may be similar to a hinge structure, etc.

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Abstract

一种弯折装置（100），包括能弯折的弯折件、滑块（70）和顶杆（80），所述弯折件具有背向柔性屏的内表面，所述内表面上设有导向部（60），该导向部（60）具有弧形面（601）；所述滑块（70）设于所述弯折件的一侧，所述顶杆（80）的一端固设于所述滑块（60）上，所述顶杆（80）的另一端滑动连接于所述弯折件上，且所述顶杆（80）的另一端抵接于所述导向部（60）的弧形面（601）上；所述弯折件自展平状态弯折至弯折状态的过程中，所述顶杆（80）的另一端能沿着所述弧形面（601）滑动，以带动所述滑块（70）朝着靠近所述弯折件的方向运动。

Description

一种弯折装置和柔性装置 技术领域
本申请涉及一种电子装置领域，特别涉及一种弯折装置和柔性装置。
背景技术
“柔性屏”因其低功耗、可弯曲的特性将对电子终端市场带来深远的影响，未来柔性屏幕将随着个人智能终端的不断渗透而广泛应用。
由于柔性屏涉及到弯折，现有的平板式支撑结构显然无法满足需求，因此有必要提供一种能够适应弯折需求的弯折装置。
发明内容
本申请提供一种弯折装置和柔性装置。
一方面，本申请提供一种弯折装置，包括能弯折的弯折件、滑块和顶杆，所述弯折件具有背向柔性屏的内表面，所述内表面上设有导向部，该导向部具有弧形面；所述滑块设于所述弯折件的一侧，所述顶杆的一端固设于所述滑块上，所述顶杆的另一端滑动连接于所述弯折件上，且所述顶杆的另一端抵接于所述导向部的弧形面上；所述弯折件自展平状态弯折至弯折状态的过程中，所述顶杆的另一端能沿着所述弧形面滑动，以带动所述滑块朝着靠近所述弯折件的方向运动。
另一方面，本申请还提供了一种弯折装置，包括可折弯的可折弯构件、滑块及限位件，所述弯折装置在弯折时所述滑块相对所述可折弯构件滑动，所述限位件位于所述可折弯构件与所述滑块之间。再一方面，本申请还提供了一种柔性装置，包括柔性屏和弯折装置，所述柔性屏具有弯折部，所述弯折部正对所述弯折件。
本申请实施例提供的弯折装置通过在当弯折装置弯折时，由于弧形面的轨迹与弯折件弯折的轨迹相对应，故顶杆能够沿着弧形面滑动，以带动滑块朝着靠近弯折件的方向滑动，从而使得柔性屏贴设于滑块上时，滑块能够使得柔性屏在弯折状态时内缩，而防止柔性屏对准弯折装置的部位即弯折部受应力较大而损坏，从而提高了该弯折装置应用于折叠装置的可靠性。
附图说明
为了更清楚地说明本申请的技术方案，下面将对实施方式中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的一种弯折装置处于展平状态的结构示意图；
图2为图1的弯折装置处于折叠状态的结构示意图；
图3为图1的弯折装置处于另一视角的结构示意图；
图4为图1的弯折装置中的再一视角的结构示意图；
图5为图4的弯折装置中的第一连杆机构的结构示意图；
图6是图1的弯折装置的结构简图；
图7是图1的弯折装置的再再一视角的结构示意图；
图8是图7的弯折装置的第VIII局部示意图；
图9是图1的弯折装置进一步设置滑块和顶杆的结构示意图；
图10是图9的弯折装置的第VIV局部示意图；
图11是图1的弯折装置进一步设置支撑板和柔性件的结构示意图；
图12是图11的弯折装置的第XII局部示意图；
图13是图9的弯折装置的另一角度的结构示意图。
具体实施方式
以下是本申请的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本申请的保护范围。
请参照图1，图1为本申请实施例提供的弯折装置100处于展平状态的示意图。该弯折装置100能够弯折，可以应用于需要弯折的柔性装置上。可选的，该柔性装置可以为柔性的移动终端、柔性的平板等终端设备。进一步的，该弯折装置100相背设置的两个端部可以连接第一结构件200和第二结构件300。换言之，弯折弯折装置100，第一结构件200和第二结构件300之间的夹角亦随之改变。进一步的，如图2所示，图2为图1中的弯折装置100处于折叠状态的示意图。第一结构件200和第二结构件300在弯折装置100的弯折下能够层叠设置，从而便于柔性装置的收纳。
如图3所示，图3为图1中的弯折装置100的另一角度示意图。该弯折装置100包括弯折件，该弯折件可以包括第一铰接单元1、第二铰接单元2和第一连杆机构6，所述第一连杆机构6分别铰接于所述第一铰接单元1和所述第二铰接单元2之间，以使所述第一铰接单元1与所述第二铰接单元2相对转动。可以理解的，如图2所示，当弯折装置100处于折叠状态时，第一连杆机构6的长度最小，而如图3所示，当弯折装置100处于展平状态时，第一连杆机构6的长度最长，第一铰接单元1和第二铰接单元2通过第一连杆机构6的长度改变而实现两个铰接单元的连接的同时，第一铰接单元1与第二铰接单元2能够相对彼此转动即折叠，连杆机构的连接方式传递运动精度高，结构简单，成本低。可以理解的，如图3所示，所述第一连杆机构6的数量为两组，两组第一连杆机构6分别沿着第一铰接单元1的长度方向设置。该弯折装置100通过设置两组第一连杆机构6于第一铰接单元1和第二铰接单元2之间，使得第一铰接单元1和第二铰接单元2的传动更为平稳，进一步提高弯折装置100的可靠性。
可选的，如图2所示，所述第一铰接单元1和所述第二铰接单元2在所述第一连杆机构6的传动作用下逆向对称移动。换言之，当第二铰接单元2朝着靠近第一铰接单元1的内侧转动时，第一铰接单元1在第一连杆机构6的传递作用下亦朝着靠近第二铰接单元2的内侧转动。换言之，第一铰接单元1和第二铰接单元2可以弯折成U形。该弯折装置100的结构便于应用于柔性装置时利于柔性装置折叠收纳。当然，在其它实施例中，第一铰接单元1和第二铰接单元2在所述第一连杆机构6的传动作用下可以弯折成S形。换言之，当第一铰接单元1朝着靠近第二铰接单元2的内侧转动时，第二铰接单元2在第一连杆机构6的传递作用下朝着靠近第一铰接单元1的外侧转动。
一些实施例中，如图4所示，所述第一连杆机构6包括第一曲柄61、第一连杆62、第二曲柄63、第二连杆64；所述第一曲柄61的第一端铰接于所述第一铰接单元1，所述第一连杆62的第一端铰接于所述第一曲柄61的第二端，所述第一连杆62的第二端铰接于所述第二铰接单元2；所述第二曲柄63的第一端铰接于所述第二铰接单元2，所述第二连杆64的第一端铰接于所述第二曲柄63的第二端，所述第二连杆64的第二端铰接于所述第一铰接单元1。可选的，所述第一连杆62和所述第二连杆64相交于铰接点，所述第一连杆62和所述第二连杆64在所述铰接点处铰接。
具体的，第一铰接单元1具有第一底板11和两个第一支架12，第一底板11大致呈长条形，沿着第一方向X延伸，两个第一支架12沿着垂直于第一方向X的方向设于第一底板11的内表面上，以使两组第一连杆机构6能够沿着第一铰接单元1的长度方向设置。第二铰接单元2 具有第二底板21和两个第二支架22，第二底板21大致呈长条形，沿着第一方向X延伸，两个第二支架22沿着第一方向X设于第二底板21的内表面上。第一连杆机构6的一端连接于第一支架12上，第一连杆机构6的另一端连接于第二支架22上。
其中，如图5所示，以一组第一连杆机构6连接于第一支架12和第二支架22举例说明：第一曲柄61具有相间隔设置第一通孔611和第二通孔，通过销钉依次穿过第一曲柄61的第一通孔611和第一支架12，以将第一曲柄61铰接于第一支架12上；第一连杆62的长度大于第一曲柄61的长度，第一连杆62具有依次间隔设置的第三通孔621、第四通孔622和第五通孔623，通过销钉依次穿过第三通孔621和第二通孔，以将第一连杆62铰接于第一曲柄61上，且通过销钉穿过第五通孔623并铰接于第二底板21靠近第一底板11的侧面上，以将第一连杆62同时铰接于第二底板21上。第二连杆64具有依次间隔设置的第六通孔641、第七通孔642和第八通孔643，通过销钉依次穿过第七通孔642和第四通孔622，以将第二连杆64铰接于第一连杆62上，且通过销钉穿过第六通孔641并铰接于第一底板11靠近第二底板21的侧面上，以将第二连杆64同时铰接于第一底板11上。第二曲柄63的结构与第一曲柄61的结构相同。第二曲柄63具有相间隔设置的第九通孔631和第十通孔，通过销钉依次穿过第二曲柄63的第九通孔631和第八通孔643，以将第二曲柄63铰接于所述第二连杆64上，且将销钉穿过第二曲柄63的第十通孔和第二支架22，以将第二曲柄63铰接于第二支架22上。
该实施例中的第一连杆机构6中的第一曲柄61、第一连杆62、第二连杆64和第二曲柄63之间的铰接点沿着弯折装置100的纵向即厚度方向分布，换言之，第一曲柄61、第一连杆62、第二连杆64和第二曲柄63分别位于不同的平面上，且四者各自所在的平面两两平行，完全弯折之后，第一曲柄61、第一连杆62、第二连杆64和第二曲柄63在平行于该第一曲柄61所在平面的任一平面上的投影落入同一条直线；同样地，完全弯折以后，第一铰接单元1和第二铰接单元2的交界线在该平面上的投影也落在该条直线上，因此，第一曲柄61、第一连杆62、第二连杆64和第二曲柄6有效地利用纵深空间实现了铰接单元1和铰接单元2的联动，从而提供了一种第一铰接单元1和第二铰接单元2能够紧凑设置的弯折装置100。
如此，当第二铰接单元2朝着靠近第一铰接单元1的内表面运动时，第二铰接单元2带动第二曲柄63转动，第二曲柄63带动第二连杆64转动，第二连杆64带动第一连杆62转动，第一连杆62带动第一曲柄61转动，从而实现第一铰接单元1和第二铰接单元2的逆向对称转动。在此过程中，由于第一连杆62和第二连杆64相铰接在一起，且第一连杆62铰接于第二铰接单元2上，第二连杆64铰接于第一铰接单元1上，从而使得弯折装置100从展平状态弯折至折 叠状态的过程中，第一连杆62和第二连杆64之间的距离逐渐减小，从而改变第一连杆机构6的整体长度，从而使得第一铰接单元1和第二铰接单元2能够相靠近即相折叠。
进一步的，如图3所示，所述第一铰接单元1和第二铰接单元2的表面均为弧形，并且弧半径相同；所述第一铰接单元1和第二铰接单元2具有相同的弧长。具体的，第二底板21的外表面为与第一底板11的外表面弧度相同的凸弧面。第一底板11的外表面的弧长和第二底板21的外表面的弧长相同。
一实施例中，如图6所示，图6是图1所示的弯折装置100的结构简图。该图6中的弯折装置100处于展平状态。此时第一铰接单元1和第二铰接单元2之间的角度为Y。所述第一铰接单元1朝向所述第二铰接单元2的几何边为第一几何边；所述第二铰接单元2朝向所述第一铰接单元1的几何边为第二几何边；所述第一曲柄61、所述第二连杆64、第二几何边相互平行；所述第二曲柄63、所述第一连杆62、所述第一几何边相互平行。其中，在图6所示的线段JK和线段HI分别表示为第一铰接单元1和第二铰接单元2的弧长，第一铰接单元1和第二铰接单元2的弧长相同。第二几何边和第一几何边分别与线段AB所在的直线和线段FE所在的直线几何边几何边共线。线段ED为第一曲柄61，线段DA为第一连杆62，线段BC为第二曲柄63，线段CF为第二连杆64，线段DA和CF相交于G点为第一连杆62和第二连杆64相铰接的铰接点。其中线段DA与第一铰接单元1的第一几何边平行，线段CF与第二铰接单元2的第二几何边平行，该机构的弯折装置100的结构使得第二铰接单元2绕O点转动至Y角度后，第二几何边和第一几何边重合。换言之，所述第一曲柄61、第一连杆62、第二连杆64和第二曲柄63能够折叠至完全重叠，换言之，第一连杆机构6的长度最小。可以理解的，第一几何边和第二几何边非结构实际存在的边，乃是从几何意义上来弧本身的边。换言之，弧两端点至弧的圆心所在的线段为几何边。
该结构的第一连杆机构6中的所述第一曲柄61、第一连杆62、第二连杆64和第二曲柄63折叠至完全重叠时，第一曲柄61与第一连杆62之间的连接点、第一连杆和第二连杆64之间的连接点，以及第二曲柄63和第二连杆之间的连接点在平行于第一曲柄61所在平面的任一平面上的投影也落入一直线上，该直线为完全弯折之后，第一曲柄61、第一连杆62、第二连杆64和第二曲柄63在平行于该第一曲柄61所在平面的任一平面上的投影落入的共同直线。可选的，所述第一曲柄61与所述第二曲柄63等长；所述第一连杆62与所述第二连杆64等长；所述铰接点与所述第一连杆62的第一端的距离等于所述铰接点与所述第二连杆64的第一端的距离。具体的，第一曲柄61的结构与第二曲柄63的结构相同，第一连杆62的结构 与第二连杆64的结构相同。使得以O点划分的两侧的连杆的长度相同。即第一曲柄61与第一连杆62的长度等于第二曲柄63与第二连杆64的长度，进一步保证第一铰接单元1和第二铰接单元2对称移动。
进一步的，请一并参照图7，该弯折装置100还包括第三铰接单元3，所述第三铰接单元3通过第二连杆机构7铰接于所述第一铰接单元1。具体的，第一铰接单元1位于第二铰接单元2与第三铰接单元3之间。第三铰接单元3的结构可以与第二铰接单元2的结构相同。且第三铰接单元3上设置第二连杆机构7的位置相对第一铰接单元1与第二铰接单元2上设置第一连杆机构6的位置镜像对称。换言之，第三铰接单元3上的两个第三支架32的间距与第二铰接单元2上的两个第二支架22的间距相同。其中，第二连杆机构7的结构与第一连杆机构6的结构相同。对应的，第一底板11上具有并排设置的两个第一支架12，一个第一支架12用以与第一连杆62的第一曲柄61铰接，另一个第一支架12用以与第二连杆机构7的第一曲柄61铰接。
一些实施例中，所述弯折装置100还包括与第一连杆机构6及第二连杆机构7连接的第一联动件10，第一连杆机构6转动带动第一联动件10活动，第一联动件10再带动第二连杆机构7转动。可选的，所述第一联动件10联动连接于所述第一连杆机构6与所述第一铰接单元1铰接的铰接点和所述第二连杆机构7与所述第一铰接单元1铰接的铰接点之间，以使所述第一弯折装置100和所述第二弯折装置100的相对移动和所述第一弯折装置100和所述第三弯折装置100的相对移动逆向对称。具体的，所述第一联动件10包括啮合传动的第一联动齿轮101和第二联动齿轮102，所述第一联动齿轮101的第一转轴固定于所述第一连杆机构6，所述第二联动齿轮102的第二转轴固定于所述第二连杆机构7；所述第一连杆机构6与所述第二连杆机构7在所述第一联动齿轮101和所述第二联动齿轮102的啮合作用下相互传动。
当第二铰接单元2朝着靠近第一铰接单元1的内侧移动时，第二铰接单元2带动第一连杆机构6传动，第一连杆机构6的第二曲柄63、第二连杆64、第一连杆62和第一曲柄61朝着重叠在一起的方向运动，从而使得第一曲柄61带动第一联动齿轮101逆时针转动，第二联动齿轮102在第一联动齿轮101的带动下沿着顺时针方向转动，从而使得第二联动齿轮102带动第二连杆机构7中的第一曲柄61、第一连杆62、第二连杆64和第二曲柄63朝着重叠在一起的方向运动，从而使得第三铰接单元3的运动与第二铰接单元2的运动对称，最终实现弯折装置100的折叠。
进一步的，请一并参照图7，所述弯折装置100还包括第四铰接单元4、第五铰接单元5、第三连杆机构8、第四连杆机构9、第二联动件20和第三联动件30；所述第四铰接单元4通过第三连杆机构8铰接于所述第二铰接单元2，所述第五铰接单元5通过第四连杆机构9铰接于所述第三铰接单元3；所述第二联动件20联动连接于所述第一连杆机构6和所述第三连杆机构8，所述第三联动件30联动连接所述第二连杆机构7和所述第四连杆机构9。
具体的，该弯折装置100具有五节铰接单元，换言之，第四铰接单元4和第五铰接单位5分别位于弯折装置100的最外侧以形成弯折装置100的两端。该第四铰接单元4和第五铰接单元5的结构大致相同，其不同之处主要在于连杆机构于铰接单元上的连接位置的不相同。现以第四铰接单元4为例进行说明，第四铰接单元4具有第四底板41，该第四底板41可以与第一结构件200一体连接。换言之，第一结构件200上直接形成第四铰接单元4，从而进一步保证第四铰接单元4与第一结构件200之间的连接性能，第三连杆机构8分别连接于第四底板41上的第四支架42和第二底板21上的第二支架22，从而实现第四铰接单元4与第二铰接单元2的铰接。其中第三连杆机构8的结构与第一连杆机构6的结构相同，在此不再赘述。其中第四连杆机构9的结构与第一连杆机构6的结构相同，在此不再赘述。其中第二联动件20和第三联动件30的结构与第一联动件10的结构相同，在此不再赘述。当然，在其它实施例中，第一铰接单元1、第二铰接单元2、第三铰接单元3、第四铰接单元4和第五铰接单元5的结构可以相同。当然，在其它实施例中，弯折装置100中的铰接单元可以为3个、7个、9个，等。
可选的，第一底板11、第二底板21、第三底板31、第四底板41和第五底板51上皆凸设有锥形凸起40，该锥形凸起40能够进一步限制弯折装置100的弯折程度。换言之，当相邻两个底板上的锥形凸起40相碰触时，弯折装置100无法进行进一步的弯折，防止弯折装置100因弯折过度而断裂，进一步提高了弯折装置100的可靠性。
可选的，沿着X方向，整个弯折装置100中的第一底板11上的两个第一支架12的间距<两个第二支架22的间距＝两个第三支架32的间距<两个第四支架42的间距＝两个第五支架52的间距。以位于第一底板11的中间位置的中轴线为参考，第二铰接单元2与第三铰接单元3上设置支架(第二支架22、第三支架32)的位置镜像对称，第四铰接单元4与第五铰接单元5上设置支架(第四支架42、第五支架52)的位置镜像对称。
进一步的，请一并参照图7和图8，所述第一连杆机构6还包括限位块50，所述限位块50 用于限制所述第一连杆62相对所述第二连杆64的移动，以防止所述第一铰接单元1相对于所述第二铰接单元2相对展开后过弯折。具体的，所述限位块50设于第一连杆62的侧面，且远离第二铰接单元2。在弯折装置100从弯折状态弯折至展平状态时，第二连杆64会抵接于限位块50上而无法继续弯折，从而使得弯折装置100处于平直状态。可以理解的，第二连杆机构7、第三连杆机构8、第四连杆机构9的第一连杆62上皆可以设置限位块50。
本实施例中，如图8所示，限位块50大致呈矩形，限位块50一体设置于第一连杆62的侧边上，并相对于第一连杆62凸出，当第二连杆64转动至贴合于限位块50上时，第二连杆64由于被限位块50挡住无法进一步转动。可以理解的，限位块50与第二连杆64通过面面接触的方式进行限位，通过大面积的接触而能够进一步准确的将第二连杆64限制在准确的位置。
进一步的，请一并参照图9和图10，为本申请实施例提供的一种弯折装置100，包括可弯折的可折弯构件、滑块70及限位件，所述弯折装置100在弯折时所述滑块70相对所述可弯折构件滑动，所述限位件位于所述可弯折构件与所述滑块70之间。可选的，所述限位件的一端固定连接于所述可折弯构件与所述滑块70的其中之一，所述限位件的另一端靠近所述可折弯构件与所述滑块70中的另一者。优选地，在弯折件处于弯折时、展平时以及弯折或展平过程中，顶杆80的另一端始终保持抵接弧形面。可以理解的，该可弯折构件可以为弯折件，限位件的结构可以为顶杆80的结构。本实施例中，该弯折装置100可以包括能弯折的弯折件、滑块70和顶杆80，所述弯折件具有背向柔性屏的内表面，所述内表面上设有导向部60，该导向部60具有弧形面601；所述滑块70设于所述弯折件的一侧，所述顶杆80的一端固设于所述滑块60上，所述顶杆80的另一端滑动连接于所述弯折件上，且所述顶杆80的另一端抵接于所述导向部60的弧形面上；所述弯折件自展平状态弯折至弯折状态的过程中，所述顶杆80的另一端能沿着所述弧形面601滑动，以带动所述滑块70朝着靠近所述弯折件的方向运动。可以理解的，该弯折件的结构可以包括但不限于图1至图8所示实施例中提及的第一铰接单元、第二铰接单元、第三铰接单元、第四铰接单元或第五铰接单元的至少一种组合。本实施例中，该弯折件即可弯折构件的结构具体包括第一铰接单元1、第二铰接单元2、第三铰接单元3、第四铰接单元4、第五铰接单元5、所述第一连杆机构6、第二连杆机构7、第三连杆机构8和第四连杆机构9；所述第一连杆机构6分别铰接于所述第一铰接单元1和所述第二铰接单元2之间；所述第三铰接单元3通过所述第二连杆机构7铰接于所述第一铰接单元1；所述第四铰接单元4通过所述第三连杆机构8铰接于所述第二铰接单元2；所述第五铰接单元5通过第四连杆机构9铰接于所 述第三铰接单元3；所述第三铰接单元3的内表面上设有导向部60，所述滑块70设于所述第五铰接单元5的一侧，所述顶杆80的另一端滑动连接于所述第五铰接单元5上。当然，在其它实施例中，该弯折件还可以包括仅第一铰接单元1和第二铰接单元2，等。当然，在其它实施例中，在所述弯折装置100的弯折过程中，所述限位件的另一端保持靠近所述可折弯构件与所述滑块70中的另一者。
可以理解的，请一并参照图11，所述弯折装置100还包括支撑板400，所述支撑板400通过点胶的方式分别固定于所述滑块70和所述弯折件上。具体的，该滑块70可以收容于第二结构件300上，该支撑板可以为支撑钢片，该支撑板通过点胶固定于第一结构件200和第二结构件300上，其中，支撑板400直接与收容于第二结构件300上的滑块70固定连接。可选的，该支撑板400之对准弯折件的部分可以为可弯折的弯折段，该弯折段与弯折件固定连接。换言之，当弯折件弯折时，能够带动弯折段一起弯折。当然，在其它实施例中，该支撑板400之对准弯折件的部分可以为镂空设置。进一步的，柔性屏500设于支撑板400上后，通过柔性屏500的结构进一步将第一结构件200、弯折件和第二结构件300组合成一个整体。
可以理解的，如图11所示，所述弯折装置100还包括设于所述支撑板400上的柔性件，所述弯折件在弯折过程中，所述弯折件的弯折外侧被拉伸，弯折内侧被挤压。可选的，该柔性件为柔性屏500，能够进行显示。优选的，所述柔性件具有相背设置的背光面和显示面，所述背光面位于所述弯折件的弯折外侧。可选的，所述弯折装置100朝向所述柔性件的一侧的长度在弯折过程中维持在阈值范围内。具体的，所述阈值范围为所述柔性件的背面在展开和弯折过程中的长度范围。换言之，该弯折装置100在弯折过程中的长度的范围维持在柔性件的背面在展开和弯折过程中的长度范围。本实施例中的弯折装置100通过进一步在支撑板400上设置能够进行显示的柔性屏400，从而使得弯折装置100形成折叠终端。所述弯折装置100自展平状态弯折至弯折状态的过程中，所述顶杆80的另一端能沿着所述弧形面601滑动，以带动所述滑块70朝着靠近所述弯折件的方向运动。当然，在其它实施例中，所述柔性件具有相背设置的背光面和显示面，所述背光面位于所述弯折件的弯折内侧。换言之，需要展平弯折装置100，才能够将柔性件的显示面外露，能够对柔性件进行保护。
具体的，如图9和图10所示，所述可折弯构件与所述滑块70中的另一者包括引导面，所述限位件的另一端靠近所述引导面，所述限位件的另一端在所述弯折装置100的弯折过程中 保持靠近所述引导面。可以理解的，该引导面可以为弧形面601。进一步的，该引导面为内凹的弧面。可选的，所述第三铰接单元3的内表面上设有导向部60，所述导向部60具有弧形面601，所述弯折装置100还包括滑块70和顶杆80，所述滑块70设于所述第四铰接单元4的一侧，所述顶杆80的一端固设于所述滑块70上，所述顶杆80的另一端可滑动地穿过所述第五铰接单元5，且所述顶杆80的另一端抵接于所述第三铰接单元3的弧形面601；所述弧形面601的轨迹与所述弯折装置100的弯折轨迹相对应，以使所述弯折装置100自展平状态弯折至弯折状态的过程中，所述顶杆80的另一端能沿着所述弧形面601滑动，顶杆80的滑动过程中，所述滑块70朝着靠近所述第三铰接单元3的方向运动；当所述弯折装置100处于展平状态时，所述顶杆80的另一端被所述弧形面601挡住。具体的，第三底板31上的锥形凸起40的端部开设有弧形槽形成导向部60，该弧形槽具有相邻接的第一槽壁和第二槽壁，第一槽壁为锥形凸起40的端部的端面构成，第二槽壁大致朝向第五铰接单元5，该第二槽壁为弧形面601。弧形面为凹面。顶杆80与滑块70一体连接，顶杆80的远离滑块70的一端凸设有柱体801，该柱体801的端面抵接于第一槽壁上，柱体801的外周面抵接于第二槽壁即弧形面601上。换言之，当弯折装置100处于展平状态时，由于柱体801的端面被第一槽壁挡住，柱体801的外周面被第二槽壁挡住，故即使滑块70受到推力时亦被限制住而无法移动。当弯折装置100弯折时，由于弧形面601的轨迹的曲率与弯折的轨迹的曲率相同，故柱体801的外周面能够沿着第二槽壁滑动，滑块70朝着靠近第三铰接单元3的方向滑动，从而使得柔性屏贴设于滑块70上时，滑块70能够使得柔性屏在弯折状态时内缩，而防止柔性屏对准弯折装置100的部位即弯折部受应力较大而损坏，进一步提高了该弯折装置100应用于折叠装置的可靠性。由于顶杆80持续抵接弧形面601(即顶杆80靠近弧形面601且与弧形面601接触)，因而当整个装置发生跌落时或受到撞击时，滑块70不会由于外界的冲击影响而内缩，从而避免柔性屏500发生损坏。进一步地，顶杆80也可以与弧形面601保持一小段距离，即顶杆80靠近弧形面但与弧形面601间隔设置，同样可起到缓解外界冲击导致滑块70内缩的情况。也就是说，只要能确保顶杆80靠近弧形面601就可有效防止或缓解外界冲击导致滑块70内缩的情况。
进一步的，如图12所示，该弯折装置100还包括弹性件90，所述弹性件90设于所述弯折件和所述滑块70之间，所述弹性件90受到所述弯折件和滑块70的作用力而被压缩和拉伸。可以理解的，弹性件90弹性连接于第五铰接单元5与所述滑块70之间。具体的，该弹性件为弹簧，套设于顶杆80上，进一步防止滑块70于弯折装置100处于展平状态时因受推力而滑动，避免贴设于滑块70上的柔性屏受损。弹簧被压缩于第五铰链单元5与滑块70之间，以产生将 滑块70朝远离第五铰链5的方向推动的弹性力。
进一步的，请一并参照图12和图13，该弯折装置100还包括限位凸起802，该限位凸起802环设于所述顶杆80上，且能抵接于第五底板51上。具体的，在弯折装置100处于展平状态时若受到拉力，由于限位凸起802与第五铰链单元的侧壁抵接而被限位，无法朝着远离第五铰接单元5的方向移动，避免贴设于滑块70上的柔性屏受损。
本申请实施例中的弯折装置100需要弯折时，则使第四铰接单元4朝着靠近第一铰接单元1的内表面移动。首先，第二铰接单元2在第四铰接单元4的带动下朝着靠近第一铰接单元1的内表面移动，具体为：第四铰接单元4带动第三连杆机构8传动，第三连杆机构8的第二曲柄63、第二连杆64、第一连杆62和第一曲柄61朝着重叠在一起的方向运动，从而使得第二铰接单元2朝着靠近第一铰接单元1的内表面移动。
接着，第一铰接单元1在第二铰接单元2的带动朝着靠近第三铰接单元3的内表面移动，具体为：所述第三连杆机构8中的第一曲柄61带动第三联动齿轮逆时针转动，第四联动齿轮在第三联动齿轮的带动下沿着顺时针方向转动，使得第三联动齿轮带动第一连杆机构6中的第二曲柄63、第二连杆64、第一连杆62和第一曲柄61朝着重叠在一起的方向运动，从而使得第一铰接单元1朝着靠近第三铰接单元3的内表面移动。
接着，第三铰接单元3在第一铰接单元1的带动下朝着靠近第一铰接单元1的内表面移动，具体为：所述第一连杆机构6中的第一曲柄61带动第一联动齿轮101逆时针转动，使得第二联动齿轮102带动第二连杆机构7中的第二曲柄63、第二连杆64、第一连杆62和第一曲柄61朝着重叠在一起的方向运动，从而使得第三铰接单元3朝着靠近第一铰接单元1的内表面移动。
最后，第四铰接单元4在第三铰接单元3的带动下朝着靠近第三铰接单元3的内表面移动，具体为：所述第二连杆机构7中的第一曲柄61带动第五联动齿轮逆时针转动，使得第六联动齿轮带动第三连杆机构8中的第二曲柄63、第二连杆64、第一连杆62和第一曲柄61朝着重叠在一起的方向运动，从而使得第五铰接单元5朝着靠近第三铰接单元3的内表面移动；从而实现弯折装置100的弯折。当然，在其它实施例中，还可以先弯折第五铰接单元5。
本申请实施例提供的弯折装置100的第一铰接单元1和第二铰接单元2通过第一连杆机构6的长度改变而实现两个铰接单元的连接的同时，第一铰接单元1与第二铰接单元2能够相对彼此转动即折叠，连杆机构的连接方式传递运动精度高，结构简单，成本低。
本申请实施例还提供一种柔性装置，包括柔性屏和弯折装置100，所述柔性屏具有弯折 部，所述弯折部正对所述弯折装置100。具体的，柔性屏对准滑块70的部分与滑块70固定连接。通过滑块70的滑动而使得柔性屏在弯折状态和在平直状态的长度保持不变。其中，当柔性装置处于展平状态时，由于柱体801的端面被第一槽壁挡住，柱体801的外周面被第二槽壁挡住，故即使滑块70受到推力时亦被限制住而无法移动。当柔性装置弯折时，由于弧形面601的轨迹与弯折的轨迹相对应，故柱体801的外周面能够沿着第二槽壁滑动，滑块70朝着靠近第三铰接单元3的方向滑动，从而使得柔性屏贴设于滑块70上时，滑块70能够使得柔性屏在弯折状态时内缩，而防止柔性屏对准弯折装置100的部位即弯折部受应力较大而损坏，进一步提高了该弯折装置100应用于折叠装置的可靠性。
本申请实施例提供的柔性装置的第一铰接单元1和第二铰接单元2通过第一连杆机构6的长度改变而实现两个铰接单元的连接的同时，第一铰接单元1与第二铰接单元2能够相对彼此转动即折叠，连杆机构的连接方式传递运动精度高，结构简单，成本低。
可以理解的，可弯折构件的结构除了前述实施例中提及的弯折件的结构之外，还可以为其它现有的可弯折的结构，如该可弯折构件可以为柔性的弹片构成，或者该可弯折构件可以类似合页结构，等。
以上对本申请实施方式所提供的内容进行了详细介绍，本文对本申请的原理及实施方式进行了阐述与说明，以上说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的一般技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (22)

  1. 一种弯折装置，其特征在于，包括能弯折的弯折件、滑块和顶杆，所述弯折件具有背向柔性屏的内表面，所述内表面上设有导向部，该导向部具有弧形面；所述滑块设于所述弯折件的一侧，所述顶杆的一端固设于所述滑块上，所述顶杆的另一端滑动连接于所述弯折件上，且所述顶杆的另一端抵接于所述导向部的弧形面上；所述弯折件自展平状态弯折至弯折状态的过程中，所述顶杆的另一端能沿着所述弧形面滑动，以带动所述滑块朝着靠近所述弯折件的方向运动。
  2. 根据权利要求1所述的弯折装置，其特征在于，所述弯折装置还包括支撑板，所述支撑板通过点胶的方式分别固定于所述滑块和所述弯折件上。
  3. 根据权利要求2所述的弯折装置，其特征在于，所述弯折装置还包括设于所述支撑板上的柔性件，所述弯折件在弯折过程中，所述弯折件的弯折外侧被拉伸，弯折内侧被挤压。
  4. 根据权利要求3所述的弯折装置，其特征在于，所述弯折装置朝向所述柔性件的一侧的长度在弯折过程中维持在阈值范围内。
  5. 根据权利要求3所述的弯折装置，其特征在于，所述弯折装置还包括弹性件，所述弹性件设于所述弯折件和所述滑块之间，所述弹性件受到所述弯折件和滑块的作用力而被压缩和拉伸。
  6. 根据权利要求2至5任意一项所述的弯折装置，其特征在于，所述柔性件具有相背设置的背光面和显示面，所述背光面位于所述弯折件的弯折外侧。
  7. 根据权利要求2至5任意一项所述的弯折装置，其特征在于，所述柔性件具有相背设置的背光面和显示面，所述背光面位于所述弯折件的弯折内侧。
  8. 根据权利要求4所述的弯折装置，其特征在于，所述阈值范围为所述柔性件的背光面在展开和弯折过程中的长度范围。
  9. 根据权利要求1至8任意一项所述的弯折装置，其特征在于，当所述弯折装置处于展平状态时，所述顶杆的另一端被所述弧形面挡住。
  10. 根据权利要求9所述的弯折装置，其特征在于，所述滑块与所述顶杆一体构造而成。
  11. 根据权利要求10所述的弯折装置，其特征在于，所述弯折件的内表面上凸设有锥 形凸起，该锥形凸起开设弧形槽形成所述导向部，该弧形槽具有相邻接的第一槽壁和第二槽壁，所述第一槽壁为所述锥形凸起的端部的端面，所述第二槽壁朝向所述顶杆的另一端，所述第二槽壁为所述弧形面；该顶杆的另一端凸设有柱体，该主题的外周面抵接于所述第二槽壁上；当所述弯折装置弯折时，所述柱体的外周面沿着所述第二槽壁滑动；当所述弯折装置处于展平状态时，所述柱体的外周面被所述第二槽壁挡住。
  12. 根据权利要求5至8任意一项所述的弯折装置，其特征在于，所述弹性件为弹簧，所述弹性件套设于所述顶杆上。
  13. 根据权利要求1至8任意一项所述的弯折装置，其特征在于，所述弯折装置还包括限位凸起，该限位凸起环设于所述顶杆上，且能抵接于所述弯折件上；当所述弯折装置处于展平状态且受到拉力时，所述限位凸起朝着远离所述弯折件的方向运动直至抵接于所述弯折件上。
  14. 根据权利要求1至13任意一项所述的弯折装置，其特征在于，所述弯折件包括第一铰接单元、第二铰接单元、第三铰接单元、第四铰接单元、第五铰接单元、所述第一连杆机构、第二连杆机构、第三连杆机构和第四连杆机构；所述第一连杆机构分别铰接于所述第一铰接单元和所述第二铰接单元之间；所述第三铰接单元通过所述第二连杆机构铰接于所述第一铰接单元；所述第四铰接单元通过所述第三连杆机构铰接于所述第二铰接单元；所述第五铰接单元通过第四连杆机构铰接于所述第三铰接单元；所述第三铰接单元的内表面上设有导向部，所述滑块设于所述第四铰接单元的一侧，所述顶杆的另一端滑动连接于所述第五铰接单元上。
  15. 一种柔性装置，其特征在于，包括柔性屏和如权利要求1至14任意一项所述的弯折装置，所述柔性屏具有弯折部，所述弯折部正对所述弯折件。
  16. 一种弯折装置，其特征在于，包括可折弯的可折弯构件、滑块及限位件，所述弯折装置在弯折时所述滑块相对所述可折弯构件滑动，所述限位件位于所述可折弯构件与所述滑块之间。
  17. 根据权利要求16所述的弯折装置，其特征在于，所述限位件的一端固定连接于所述可折弯构件与所述滑块的其中之一，所述限位件的另一端靠近所述可折弯构件与所述滑块中的另一者。
  18. 根据权利要求17所述的弯折装置，其特征在于，在所述弯折装置的弯折过程中，所述限位件的另一端保持靠近所述可折弯构件与所述滑块中的另一者。
  19. 根据权利要求17所述的弯折装置，其特征在于，在所述弯折装置的弯折过程中，所述限位件的另一端保持抵持所述可折弯构件与所述滑块中的另一者。
  20. 根据权利要求18或19所述的弯折装置，其特征在于，所述可折弯构件与所述滑块中的另一者包括引导面，所述限位件的另一端靠近所述引导面，所述限位件的另一端在所述弯折装置的弯折过程中保持靠近所述引导面。
  21. 根据权利要求20所述的弯折装置，其特征在于，所述引导面为内凹的弧面。
  22. 根据权利要求16至21任意一项所述的弯折装置，其特征在于，所述可弯折构件包括第一铰接单元、第二铰接单元、第三铰接单元、第四铰接单元、第五铰接单元、所述第一连杆机构、第二连杆机构、第三连杆机构和第四连杆机构；所述第一连杆机构分别铰接于所述第一铰接单元和所述第二铰接单元之间；所述第三铰接单元通过所述第二连杆机构铰接于所述第一铰接单元；所述第四铰接单元通过所述第三连杆机构铰接于所述第二铰接单元；所述第五铰接单元通过第四连杆机构铰接于所述第三铰接单元；所述滑块设于所述第五铰接单元的一侧，所述限位件的另一端滑动连接于所述第三铰接单元上。
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