WO2019120167A1 - 转动机构及折叠终端 - Google Patents

转动机构及折叠终端 Download PDF

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Publication number
WO2019120167A1
WO2019120167A1 PCT/CN2018/121498 CN2018121498W WO2019120167A1 WO 2019120167 A1 WO2019120167 A1 WO 2019120167A1 CN 2018121498 W CN2018121498 W CN 2018121498W WO 2019120167 A1 WO2019120167 A1 WO 2019120167A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotating
sliding
shaft
constant length
rotating mechanism
Prior art date
Application number
PCT/CN2018/121498
Other languages
English (en)
French (fr)
Inventor
长井贤次
彭乐雄
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP18889984.3A priority Critical patent/EP3720102B1/en
Publication of WO2019120167A1 publication Critical patent/WO2019120167A1/zh
Priority to US16/903,868 priority patent/US11395424B2/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
    • 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
    • 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
    • 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
    • H04M1/0206—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
    • 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
    • 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
    • H05K5/0017—Casings, cabinets or drawers for electric apparatus with operator interface units

Definitions

  • the present invention relates to an electronic device, and more particularly to a rotating mechanism and a folding terminal.
  • the flexible display screen is only one component of the foldable terminal device, to realize the folding of the entire terminal device, it is necessary to fully cooperate with the structure, and the like, and therefore, a hinge mechanism capable of folding the terminal device is required.
  • a hinge mechanism capable of folding the terminal device is required.
  • the movement trajectories are different when folding, which makes it difficult to take care of the overall appearance of the folded state, the unfolded state and any angle in the middle.
  • the invention also provides an appearance treatment scheme in conjunction with the hinge mechanism.
  • screen sliding For external folding equipment, there are two big directions: screen sliding and screen fixed.
  • the screen sliding type is that the screen slides on the structural member along with the movement of the rotating shaft mechanism during the folding process; while the screen fixed type is that the screen and the structural member of the device are relatively fixed, and the rotating shaft mechanism cooperates with the screen during the folding process. Changes in the change, the screen and structural parts will not be displaced.
  • the flexible screen is a relatively fragile component, and can not withstand large tensile deformation (pull pressure) during the folding process. Therefore, the most important function for such a screen-fixed terminal device is that the rotating shaft mechanism can be rotated. The change in length is achieved.
  • One of the most important drawbacks of the slipping scheme in the prior art is that the mechanism needs a certain pulling force when the sliding body is moved. If there is no screen or a flexible member like a screen connecting the two sides of the casing, the device cannot be rotated. Achieve the sliding function; another drawback is that the screen is squeezed from the two sides of the device toward the center when unfolding, and there may be a sliding phenomenon. At this time, the screen will be arched, which will affect the appearance and damage the screen.
  • the technical problem to be solved by the present invention is to provide a rotating mechanism and a folding terminal, which can reduce the force of the flexible screen during the folding process.
  • the present invention provides a rotating mechanism, including a guiding shaft, at least two rotating members and at least two constant length units, the rotating shafts are disposed on both sides of the guiding shaft;
  • the guide shaft is provided with an arc-shaped groove;
  • the rotating member is provided with an arc-shaped portion, and the arc-shaped portion is slidably disposed on the arc-shaped groove to enable the rotating member to rotate relative to the guiding shaft;
  • the constant length unit is an elongated strip having a fixed length and capable of being bent.
  • the constant length unit has opposite positioning ends and sliding ends in the longitudinal direction thereof, and the positioning end and the side located on the side of the guiding shaft
  • the rotating member is fixedly connected or rotatably connected, and the sliding end is slidably coupled to the rotating member on the other side of the guiding shaft along the length direction of the constant length unit; each of the rotating members is simultaneously disposed The positioning end and the sliding end.
  • the guiding shaft includes a first sub-axis and a second sub-axis, the first sub-axis is parallel and opposite to the second sub-axis, and the two are fixedly connected.
  • the arcuate groove is a gap disposed between the first sub-shaft and the second sub-shaft.
  • the arcuate groove is formed by the gap between the first sub-shaft and the second sub-shaft, which can be easily formed and facilitates fitting the arc-shaped portion into the arc-shaped groove.
  • the guide shaft is provided with an arcuate guide groove, and the constant length unit slides through the arcuate guide groove.
  • the curved guiding groove can make the constant length unit can be bent according to a predetermined arc size, so that the sliding end of the constant length unit can move according to the preset trajectory, reducing the external force received by the flexible screen, and avoiding the constant length unit being pressed.
  • the constant length unit is arched, the length changes.
  • the constant length unit includes a plurality of links, a plurality of the links are connected in series, and a rotation connection between two adjacent links; through rotation between the links, Achieve bending of a constant length unit; or,
  • the constant length unit is made of a material that can be bent, and the bending of the constant length unit is achieved by the characteristics of the bendable material.
  • the rotating member is provided with a sliding slot
  • the sliding slot has two oppositely disposed slot walls
  • each of the slot walls is provided with a sliding channel
  • the constant length unit The sliding end is provided with a slider
  • the slider is slidably disposed in the sliding slot
  • sliding ears are disposed at opposite sides of the slider
  • the sliding ear is slidably disposed in the sliding channel.
  • the sliding fit of the slider and the sliding slot, the cooperation of the sliding ear and the sliding channel can ensure the stability of sliding of the sliding end of the constant length unit, and can limit the sliding end to the rotating member, so that the sliding end does not rotate with the rotating member Separation.
  • the rotating member includes a rotating plate and at least two rotating blocks, and each of the rotating blocks is fixed to the rotating plate, wherein the two The rotating block is spaced apart and a gap therebetween forms the chute, and the chute is disposed between the rotating block and the rotating plate.
  • the rotating block is provided with the curved portion, and the constant length unit is limited between the two curved portions.
  • the use of two curved portions can form a limit action on the constant length unit, and avoid the sway of the constant length unit during the bending process and affect the sliding trajectory of the sliding end.
  • the rotating mechanism further includes an appearance shielding component
  • the appearance shielding component includes an intermediate shaft and two shielding plates
  • the two shielding plates are respectively rotatably connected with the intermediate shaft
  • the two The shielding plates are respectively slidably engaged with the rotating members on both sides of the guiding shaft.
  • the back side of the rotating component can be shielded by the appearance shielding component, so that the back structure of the foldable terminal is simple, and the appearance can be made very simple.
  • an intermediate slot is disposed on a side of the intermediate shaft away from the guiding shaft, and the intermediate shaft is provided with two sub-axles, and the intermediate slot is located between the two sub-axles.
  • Two of the shielding plates are respectively rotatably connected to the two sub-shafts; in the folded state, the adjacent ends of the two shielding plates are located in the intermediate groove; in the unfolded state, the two shieldings The adjacent ends of the plates abut each other.
  • the intermediate groove can accommodate the adjacent ends of the two shielding plates to ensure that the adjacent ends of the two shielding plates can abut in the unfolded state to completely block the guiding shaft and the two rotating components.
  • the present invention provides a folding terminal comprising the aforementioned rotating mechanism, two body portions, and a flexible screen; two of the body portions are connected by the rotating mechanism, and the flexible screen includes two fixing portions And a curved portion, wherein the two fixing portions are fixedly connected to the two body portions, and the bending portion is disposed opposite to the rotating mechanism.
  • the two rotating members can be rotated relative to the guiding shaft to realize folding; when the rotating member rotates around the guiding shaft, the sliding end of the constant length unit slides relative to the other rotating member.
  • a constant length connection line can be formed between the sliding ends of the two constant length units, and the position of the connection line coincides with the position of the flexible screen to ensure that the total length of the foldable terminal at the surface of the flexible screen is not The change occurs, and the flexible screen is subjected to a minimum external force during the folding process, thereby protecting the flexible screen and prolonging the service life.
  • FIG. 1 is a schematic structural view of a front side of a foldable terminal in an unfolded state according to an embodiment of the present invention
  • Figure 2 is a schematic view showing the structure of the foldable terminal of Figure 1 in the flat state
  • Figure 3 is a schematic view showing the structure of the foldable terminal of Figure 2 at another angle in the half-folded state
  • FIG. 4 is a schematic structural view of a rotating mechanism of a foldable terminal according to an embodiment of the present invention.
  • Figure 5 is an exploded perspective view of the rotating mechanism of Figure 4.
  • Figure 6 is an exploded perspective view of the rotating member and the constant length unit of the rotating mechanism of Figure 4;
  • Figure 7 is a side view showing the structure of the rotating mechanism of Figure 4 in an unfolded state
  • Figure 8 is a side view showing the structure of the rotating mechanism of Figure 4 in a half-folded state
  • Figure 9 is a side view showing the structure of the rotating mechanism of Figure 8 further folded;
  • Figure 10 is a side view showing the structure of the rotating mechanism of Figure 9 after being completely folded;
  • Figure 11 is a schematic view showing the structure of the rotating mechanism provided with the appearance shielding assembly according to the present invention.
  • Figure 12 is a schematic structural view of the appearance shielding assembly of Figure 11;
  • Figure 13 is a partial enlarged view of the appearance shielding assembly of Figure 12;
  • Figure 14 is a schematic view showing the structure of the intermediate shaft of the appearance shielding assembly of Figure 12;
  • Figure 15 is a schematic view showing the structure of a rotating mechanism in another embodiment of the present invention.
  • Figure 16 is a schematic view showing the structure of the rotating member and the constant length unit of the rotating mechanism of Figure 15;
  • Figure 17 is a schematic view showing the structure of the constant-length unit in Figure 15 in a bent state.
  • a folding terminal provided by an embodiment of the present invention includes a rotating mechanism 100 , two main body portions 200 , and a flexible screen 300 .
  • the two main body portions 200 of the folding mobile phone are connected by the rotating mechanism 100. With the rotating mechanism 100, the two main body portions 200 can be relatively rotated, thereby achieving folding and unfolding of the folding mobile phone.
  • the flexible screen 300 includes two fixing portions 301 and a bending portion 302. The two fixing portions 301 are respectively fixedly connected to the two main body portions, and the bending portion 302 is disposed opposite to the rotating mechanism 100.
  • the curved portion 302 can be curved in a curved shape, and the flexible screen 300 is located at the outer side of the entire folded mobile phone.
  • the folding terminal in this embodiment may be covered with flexible screen terminal devices, such as a foldable mobile phone, a notebook computer, a tablet computer, a foldable display device, a foldable display screen, a wearable device, a PDA, and the like.
  • flexible screen terminal devices such as a foldable mobile phone, a notebook computer, a tablet computer, a foldable display device, a foldable display screen, a wearable device, a PDA, and the like.
  • the rotating mechanism 100 includes a guide shaft 1, at least two rotating members 2a, 2b, and at least two constant length units 3a, 3b.
  • Rotating members 2a, 2b are provided on both sides of the guide shaft 1, and relative rotation between the rotating members 2a, 2b on both sides can be realized by the guide shaft 1, so that the folding terminal can be folded or unfolded.
  • there are two rotating members and the two rotating members 2a, 2b are respectively located on both sides of the guiding shaft.
  • the number of the rotating members is not limited to two, and the rotating members may also be three.
  • One side of the guiding shaft is provided with one rotating member, and the other side is provided with two rotating members; or, rotating The pieces can also be four, and the two sides are respectively provided with two sides of the guide shaft.
  • the guide shaft 1 is provided with an arcuate groove 120.
  • the rotating member 2a is provided with an arcuate portion 20 which is slidably disposed in the arcuate groove 120 to enable the rotating member 2a to rotate relative to the guide shaft 1.
  • the arcuate groove 120 is matched with the curved portion 20 in one-to-one correspondence.
  • the arcuate groove 120 may also be one, and the curved portions 20 of the two rotating members 2 may be arranged side by side in the same arc groove 120 along the axial direction of the guide shaft 1.
  • the constant length units 3a, 3b are two.
  • the constant length units 3a, 3b are elongated strips having a fixed length and capable of being bent, and each of the constant length units 3a, 3b has opposite positioning ends 30a and sliding ends 30b in the longitudinal direction thereof.
  • the positioning end 30a of the constant length unit 3a is fixedly connected or rotatably connected to the rotating member 2a on the side of the guide shaft 1.
  • the sliding end 30b of the constant length unit 3a is slidably coupled to the other side of the guide shaft 1 along the length of the constant length unit 3a. Side rotating member 2b.
  • the positioning end 30a of the constant length unit 3b is fixedly or rotationally coupled to the rotating member 2b, and the sliding end 30b of the constant length unit 3b is slidably coupled to the other rotating member 2a.
  • Each of the rotating members 2a, 2b is provided with a positioning end 30a and a sliding end 30b.
  • the number of constant length units is not limited to two, and the constant length unit may also be three, wherein the positioning ends of the two constant length units may be fixedly connected with the rotating member 2a, and the sliding end and the rotation end
  • the positioning end of the other constant length unit can be fixedly connected with the rotating member 2b, and the sliding end is slidably connected with the rotating member 2a, so that the rotating parts 2a, 2b are provided with the positioning end 30a and the sliding end 30b, further
  • the number of constant length units can also be four or more.
  • the sliding end 30b of the constant length units 3a, 3b can be used to connect with the main body portion 200.
  • the sliding end 30b of the constant length unit 3a slides relative to the rotating member 2b
  • the sliding end 30b of the constant length unit 3b slides relative to the other rotating member 2a
  • the sliding of the sliding end 30b of the 3a can drive the movement of the two body portions 200, and the body portion 200 can drive the fixing portion 301 of the flexible screen 200 to move, so that the folding terminal and the flexible screen 200 thereof are folded or unfolded.
  • FIG. 7 which is a schematic view of the rotating mechanism 100 in a fully deployed state
  • FIGS. 7 and 8 are schematic views of the folding mechanism 100 during folding
  • FIG. 10 is a schematic view showing the rotating mechanism 100 in a fully folded state.
  • the rotating members 2a, 2b are rotated by the arc determined by the curved portion 20 and the curved groove 120, and formed at the center position in the thickness direction of the curved portion 20 by the two sliding ends 30b.
  • the length of the center line changes as the rotation of the rotating members 2a, 2b.
  • the folded outer side of the folding terminal there is a folded outer connecting line parallel to the center connection, and both ends of the folded outer connecting line are flush with the ends of the center line in the thickness direction of the folding terminal, and the folded outer side is gradually separated
  • the length of the outer line of the fold is gradually reduced and then gradually increased by the influence of the arc of rotation.
  • a line of constant length L can be formed between the sliding ends 30b of the two constant length units 3, and the position of the connection line coincides with the position of the flexible screen 300 to ensure that the foldable terminal is located at the surface of the flexible screen 300.
  • the total length does not change, and the flexible screen 300 is subjected to an external force during the folding process to minimize the external force, thereby protecting the flexible screen 300.
  • the center position of the curved portion 20 in the thickness direction may be the central axis of rotation of the rotating mechanism 100 when it is rotated.
  • the center position of the curved portion 20 in the thickness direction may be at the center position of the curved portion 20.
  • a line connecting the projections of the two sliding ends 30b in a plane perpendicular to the central axis of rotation is the center line, and the center line is along the sliding direction of the two sliding ends 30b.
  • the wire is linearly transitioned along the central axis of rotation (as in the case of the sliding direction of the sliding end 30b in FIGS. 8 to 10).
  • the folding terminal has a plurality of folded outer lines parallel to the center line on the outer side of the center line, and both ends of the folded outer line are connected to the center in the thickness direction of the folding terminal. Both ends are flush.
  • the plurality of folded outer connecting lines are gradually away from the center connecting line, and the length of the folded outer connecting line is gradually reduced by the turning arc and then gradually becomes larger, and is along the thickness direction of the terminal.
  • the guide shaft 1 includes a first sub-shaft 11 and a second sub-shaft 12, the first sub-shaft 11 and the second sub-shaft 12 being parallel and oppositely disposed, the first sub-axis 11 and the second sub-shaft 12 are fixedly connected, and the arcuate groove 120 is a gap provided between the first sub-shaft 11 and the second sub-shaft 12.
  • the arcuate groove 120 is formed by the gap between the first sub-shaft 11 and the second sub-shaft 12, which can be easily formed and facilitates the fitting of the curved portion 20 into the arcuate groove 120.
  • a concave arc surface may be disposed on the first sub-shaft 11, and a convex arc surface is disposed on the second sub-shaft 12, and the convex arc surface is opposite to the concave arc surface, and the first sub-shaft 11 and the second sub-shaft After the shaft 12 is assembled, a gap is formed between the convex curved surface and the concave curved surface, and the gap is the curved groove 120.
  • the guide shaft 1 is provided with an arcuate guide groove 122, and the constant length unit 3 is slidably disposed through the arcuate guide groove 122.
  • the sliding of the constant length unit 3 through the curved guiding groove 122 means that the constant length unit 3 passes through the curved guiding groove 122, and a part of the constant length unit 3 is located in the curved guiding groove, and the constant length unit 3 can be in the arc
  • the shape guide groove 122 slides in the longitudinal direction of itself.
  • the curved guiding groove 122 can make the constant length unit 3 bend according to a predetermined arc size, so that the sliding end 30b of the constant length unit 3 can move according to a preset trajectory, reducing the external force received by the flexible screen 300 while avoiding When the constant length unit 3 is pressed, the constant length unit 3 is arched to change the length.
  • the constant length unit 3 includes a plurality of links 30, a plurality of links 30 are connected in series, and the adjacent two links 30 are rotationally coupled.
  • the bending of the constant length unit 3 can be achieved by the rotation between the links 30.
  • each link 30 includes a first connecting block 31 and two second connecting blocks 32.
  • the first connecting block 31 is fixed between the two second connecting blocks 32
  • two second A connecting groove 33 is formed between the connecting blocks 32
  • the first connecting block 31 is rotatably coupled to the connecting groove 33 of the adjacent other link 30 via the rotating shaft 34.
  • the link 30 located at the positioning end 30a of the constant length unit 3 is connected to the rotating member 2 via the fixing member 35.
  • the fixing member 35 is fixedly coupled to the rotating member 2, and the fixing member 35 is rotatably coupled to the link 30.
  • the links 30 located at the positioning end 30a of the constant length unit 3 may be directly connected or fixedly connected to the rotating member 2.
  • the rotating member 2 is provided with a sliding slot 210
  • the sliding slot 210 has two oppositely disposed slot walls, and each slot wall is provided with a sliding channel 2100 for the constant length unit 3
  • the sliding end 30b is provided with a slider 36.
  • the slider 36 is slidably disposed in the sliding slot 210.
  • the sliding ears 37 are disposed on opposite sides of the slider 36, and the sliding ear 37 is slidably disposed in the sliding channel 2100.
  • both ends of the rotating shaft 34 extend to the outside of the link 30 and can be slidably engaged with the slide 2100, so that the stability of the constant length unit 3 slip can be ensured.
  • the slider 36 can be fixedly coupled to the body portion 200 to drive the body portion 200 to move.
  • the rotating member 2 includes a rotating plate 21 and at least two rotating blocks 3, each of which is fixed to the rotating plate 21, wherein the two rotating blocks 3 are spaced apart and a gap between the two forms a chute 210, and the chute 2100 is disposed Between the rotating block 3 and the rotating plate 21.
  • the chute 210 and the chute 2100 can be conveniently formed, which facilitates the processing and facilitates the assembly connection between the rotating member 2 and the slider 36.
  • Each of the rotating blocks 3 is provided with an arc portion 20, and the constant length unit 3 is limited between the two curved portions 20, and the two curved portions 20 can form a limit action on the constant length unit 3 to avoid constant length.
  • the unit 3 is shaken during the bending process to affect the sliding trajectory of the sliding end 30b.
  • the rotating mechanism 2 further includes two rotating members 2c, 2d, and two constant length units 3c, 3d, the structure and two rotations of the two rotating members 2c, 2d.
  • the pieces 2a and 2b are identical, and the structures of the constant length units 3c and 3d are the same as those of the above-described constant length units 3a and 3b, and are not described herein again.
  • the stability of the rotation of the two body portions 201 can be ensured by the cooperation of the four rotating members and the four constant length units.
  • the rotating mechanism 200 further includes an appearance shielding assembly 4 located at a side of the guiding shaft 1 away from the flexible screen 300, that is, the guiding shaft 1 is located between the appearance shielding assembly 4 and the flexible screen 300, thereby The appearance shielding assembly 4 is placed between the two sets of rotating components in the folded state.
  • the back side of the rotating assembly 2a, 2b can be shielded by the appearance shielding assembly 4 so that the back surface structure of the foldable terminal is simple.
  • the appearance shielding assembly 4 includes an intermediate shaft 41 and two shielding plates 42a, 42b.
  • the two shielding plates 42a, 42b are respectively rotatably connected to the intermediate shaft 41, and the intermediate shaft 41 is located at the shielding plates 42a, 42b and the guiding shaft. Between 1 to block the intermediate shaft 41 inside the foldable terminal.
  • the intermediate shafts 41 may be one, two or more, and are arranged along the length direction of the guide shaft 1 to ensure the stability of the relative rotation of the two shielding plates 42a, 42b.
  • the shielding plate 42a is slidably engaged with the rotating members 2a, 2c, and the shielding plate 42b is slidably engaged with the rotating members 2b, 2d so that the shielding plate can be slid relative to the rotating member during folding or unfolding.
  • the shielding plates 42a, 42b are provided at the opposite side ends in the axial direction of the guide shaft 1 with side stopper portions 421, and the rotating members and the constant length units are located between the two side stopper portions 421 of the shielding plates 42a, 42b.
  • the side stop portion 421 can block the side end portions of the rotating member so that the outer end portions of the foldable terminal are simple in appearance.
  • the side block portion 421 of the shielding plate 42a, 42b is provided with a sliding groove 420, and the side end of the rotating member 2a is provided with a side protrusion 25, and the side protrusion 25 is slidably disposed in the sliding groove 420, and the side protrusion 25 is slid
  • the sliding fit of the groove 420 allows relative sliding between the shielding plates 42a, 42b and the rotating member.
  • the intermediate shaft 41 is provided with an intermediate groove 410 on the side away from the guide shaft 1.
  • the intermediate shaft 41 is provided with two sub-shafts 411, and the intermediate groove 410 is located between the two sub-shafts 411, more specifically The two sub-shafts 411 are respectively located on two opposite groove walls of the intermediate groove 410.
  • the two shielding plates 42a, 42b are respectively rotatably connected to the two sub-shafts 411. In the folded state, the adjacent ends of the two shielding plates 42a, 42b are located in the intermediate groove 410. In the unfolded state, the two shielding plates 42a, The adjacent ends of 42b abut each other.
  • the adjacent ends of the two shielding plates 42a, 42b can be accommodated to ensure that the adjacent ends of the two shielding plates 42a, 42b can abut in the unfolded state, so as to guide the shaft 1 and the two The rotating components 2a, 2b are completely blocked.
  • the two shielding plates 42a, 42b are opposed to the intermediate shaft 41, and the intermediate shaft 41 can be floated in the thickness direction of the foldable terminal to accommodate the folding and unfolding of the entire foldable terminal.
  • the ends of the two shielding plates 42a, 42b away from each other are slidably coupled to the inside of the two body portions 201, respectively, so that the shielding plate 42 can be slid to the inside of the two body portions 201 in a folded state.
  • both ends of the guide shaft 1 are provided with a guide end plate 13, and the guide end plate 13 can block the side ends of the rotating components 2a, 2b.
  • the guide end plate 13 In the folded state, the guide end plate 13 can be avoided.
  • the inside of the rotating assembly 2a, 2b is exposed.
  • the guide end plate 13 may be located at the inner side of the side stop portion 421, or the guide end plate 13 may be located at the outer side of the side stop portion 421.
  • the constant length unit is configured by a plurality of links 30.
  • the constant length unit 3e may also be made of a memory metal, and the metal may be memorized.
  • the bending property realizes the bending of the constant length unit 3e.
  • the constant length unit can also be made of carbon fiber, glass fiber, plastic parts or other materials that can be bent.
  • the rotating mechanism provided by the invention has substantially two symmetrical left and right portions, and the left and right portions are rotatable about the middle guiding shaft.
  • the left and right portions can be coupled together by sliding between the sliding member and the rotating member.
  • the left part rotates, it will drive the right side of the slide, and when the right part rotates, it will drive the left side of the slide.
  • a line between the two sliders having a constant length L is maintained, and the flexible screen is located at the line.
  • the overall solution of the rotating mechanism is realized by the rotating component and the appearance shielding component.
  • the rotating component can realize the folding of the terminal device, and the folding screen does not have an additional pulling force on the flexible screen, which can effectively protect the screen, and is in an unfolded state.
  • the guide shaft itself does not slide independently and the screen arches to damage the screen.
  • the shielding member can be disposed in combination with the two rotating components, and the shielding member is also divided into two symmetrical parts.
  • the two shielding members are respectively located on two sides of the guiding shaft, and the two shielding members are connected by the floating intermediate shaft, which can be realized in the folding process.
  • the overall appearance of the organization is simple.
  • the embodiment of the invention further provides a display device comprising a flexible screen and a rotating mechanism in the above embodiment, the flexible screen comprising two fixing portions and a bending portion, and the two fixing portions respectively and the two main bodies a fixed connection; the two fixing portions are respectively fixedly disposed with the sliding block on both sides of the guiding shaft, and the curved portion is disposed opposite to the guiding shaft.
  • the display device can be applied to folding terminals such as a folding mobile phone, a folding display, and a folding tablet.

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Abstract

本发明公开了一种转动机构及折叠终端。转动机构包括导向轴、至少两个转动件及至少两个恒长单元，导向轴的两侧均设有转动件；导向轴上设有弧形槽；转动件上设置有弧形部，弧形部滑动设置于弧形槽；恒长单元为具有固定长度且能够弯曲的长条形，恒长单元的定位端与位于导向轴一侧的转动件固定连接或转动连接，滑动端滑动连接于位于导向轴另一侧的转动件。折叠终端具有前述的转动机构。通过弧形槽与弧形部的配合，能够使得两个转动件相对导向轴转动，进而实现折叠；当转动件绕导向轴转动时恒长单元的滑动端相对转动件滑动，使得折叠终端在柔性屏所在面处的总长度不发生变化，实现在折叠过程中柔性屏会受到外力最小，从而保护柔性屏，延长使用寿命。

Description

转动机构及折叠终端 技术领域
本发明涉及电子设备，特别涉及一种转动机构及折叠终端。
背景技术
柔性屏技术的逐渐成熟，促使终端的显示方式发生和非常大的变化，其中之一就是可折叠手机的出现，因其显示屏可根据不同的使用场景下灵活变化切换模式的特点正成为主流设备厂商下代手机开发的主方向。
由于柔性显示屏只是可折叠的终端设备中的一个部件，要实现整个终端设备的可折叠还需要结构等方面全面配合，因而需要一种可以实现终端设备折叠的转轴机构。同时在设备折弯区域，由于各个零部件所在的折弯半径各不相同，折叠的时候各自运动轨迹也不同，导致要兼顾折叠态、展开态以及中间任意角度时候设备整体的外观非常困难，该发明同时也提供了配合此转轴机构的外观处理方案。
对外折式设备来说，综合起来有两个大的方向：屏幕滑动式和屏幕固定式。屏幕滑动式，顾名思义就是在折叠过程中屏幕会随着转轴机构的运动而在结构件上滑动；而屏幕固定式则是屏幕与设备的结构件相对固定，设备在折叠过程中转轴机构配合屏幕的变化而变化，屏幕与结构件不会发生位移错动。
相对来说柔性屏是一比较脆弱的部件，折叠过程中不能承受大的拉压变形(拉压力)，因此针对这种屏幕固定式的终端设备，最主要的功能就是需要转轴机构可以在转动过程中实现长度的变化。
现有技术中的滑移方案有个很重要的缺陷就是机构在滑移时需要屏幕提供一定的拉力，如果没有屏幕或者类似屏幕的柔性件连接两侧壳体，则设备在转动的时候没法实现滑动功能；另外一个缺陷就是屏幕在展开时从设备两个侧边朝中间挤压，也可能出现滑动现象，此时屏幕会起拱，轻则影响外观，重则破坏屏幕。
发明内容
本发明所要解决的技术问题在于，提供一种转动机构及折叠终端，可以减小柔性屏在折叠过程中的受力。
为解决上述技术问题，一方面，本发明提供了一种转动机构，包括导向轴、至少两个转动件及至少两个恒长单元，所述导向轴的两侧均设置有所述转动件；所述导向轴上设置有弧形槽；所述转动件上设置有弧形部，所述弧形部滑动设置于所述弧形槽，以使所述转动件能够相对所述导向轴转动；所述恒长单元为具有固定长度且能够弯曲的长条形，所述恒长单元在自身长度方向上具有相对的定位端及滑动端，所述定位端与位于所述导向轴一侧的所述转动件固定连接或转动连接，所述滑动端沿所述恒长单元的长度方向滑动连接于位于所述导向轴另一侧的所述转动件；各所述转动件上均同时设置有所述定位端及所述滑动端。
在第一种可能的实现方式中，所述导向轴包括第一子轴和第二子轴，所述第一子轴与所述第二子轴平行且相对设置，且二者固定连接，所述弧形槽为设置在所述第一子轴与所述第二子轴之间的空隙。利用第一子轴和第二子轴之间的空隙形成弧形槽，可以方便加工成型，且利于将弧形部装配到弧形槽中。
在第二种可能的实现方式中，所述导向轴上设置有弧形导向槽，所述恒长单元滑动穿设所述弧形导向槽。利用弧形导向槽可以使得恒长单元能够按照预定的弧度大小进行弯曲，以使得恒长单元的滑动端能够按照预设轨迹移动，减小柔性屏受到的外力，同时可以避免恒长单元受压的时候恒长单元拱起使长度发生变化。
在第三种可能的实现方式中，所述恒长单元包括多个链节，多个所述链节串联，且相邻两个链节之间转动连接；通过链节之间的转动，可以实现恒长单元的弯曲；或者，
所述恒长单元为能够弯曲的材料制成，通过可弯曲材料的特性实现恒长单元的弯曲。
在第四种可能的实现方式中，所述转动件上设置有滑槽，所述滑槽具有相对设置的两个槽壁，各所述槽壁上均设置有滑道，所述恒长单元的滑动端设置有滑块，所述滑块滑动设置于所述滑槽中，所述滑块上相背的两侧处均设置有滑动耳，所述滑动耳滑动设置于所述滑道中。利用滑块与滑槽的滑动配合、滑动耳与滑道的配合，可以保证恒长单元的滑动端滑动的稳定性，且能够将滑动端限制在转动件上，使得滑动端不会与转动件分离。
结合第四种可能的实现方式，在第五种可能的实现方式中，所述转动件包括转动板及至少两个转动块，各所述转动块均固定于所述转动板，其中两个所述转动块间隔设置且二者之间的间隙形成所述滑槽，所述滑道设置在该所述转动块与所述转动板之间。利用转动块与转动板之间的配合，可以方便形成滑槽与滑道，利于加工制备且方便转动件与滑块之间的装配连接。
结合第五种可能的实现方式，在第六种可能的实现方式中，所述转动块上均设置有所述弧形部，所述恒长单元限位在两个所述弧形部之间。利用两个弧形部可以对恒长单元形成限位作用，避免恒长单元在弯曲过程中晃动而影响滑动端的滑动轨迹。
在第七种可能的实现方式中，所述转动机构还包括外观遮蔽组件，所述外观遮蔽组件包括中间轴及两个遮蔽板，两个所述遮蔽板分别与中间轴转动连接，两个所述遮蔽板分别与所述导向轴两侧的所述转动件滑动配合。利用外观遮蔽组件可以将转动组件的背面进行遮蔽，以使得可折叠终端的背面结构简洁，能够使得外观非常简洁。
在第八种可能的实现方式中，所述中间轴上远离所述导向轴的一侧设置有中间槽，所述中间轴上设置有两个子轴，所述中间槽位于两个子轴之间，两个所述遮蔽板分别转动连接于两个所述子轴；在折叠状态下，两个所述遮蔽板相临近的端部位于所述中间槽中；在展开状态下，两个所述遮蔽板相临近的端部相互抵接。利用中间槽，可以收容两个遮蔽板相临近的端部，以保证在展开状态下两个遮蔽板相临近的端部能够抵接，以将导向轴及两个转动组件完全遮挡。
另一方面，本发明提供了一种折叠终端，包括前述的转动机构、两个主体部分、及柔性屏；两个所述主体部分通过所述转动机构连接，所述柔性屏包括两个固定部及一弯曲部，两个所述固定部分别与两个所述主体部固定连接，所述弯曲部与所述转动机构相对设置。
本发明中，通过弧形槽与弧形部的配合，能够使得两个转动件相对导向轴转动，进而 实现折叠；当转动件绕导向轴转动时恒长单元的滑动端相对另一转动件滑动，两个恒长单元的滑动端之间能够形成一条长度恒定不变的连线，该连线所在的位置与柔性屏所在的位置重合，保证可折叠终端在柔性屏所在面处的总长度不发生变化，实现可折叠终端在折叠过程中柔性屏会受到外力最小，从而保护柔性屏，延长使用寿命。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍。
图1是本发明实施例提供可折叠终端在展开状态下正面处的结构示意图；
图2是图1中的可折叠终端在展平状态下背面处的结构示意图；
图3是图2中的可折叠终端在半折叠状态下背面处另一角度的结构示意图；
图4是本发明实施例提供可折叠终端的转动机构的结构示意图；
图5是图4中转动机构的分解示意图；
图6是图4中转动机构的转动件与恒长单元的分解示意图；
图7是图4中转动机构在展开状态下的侧面结构示意图；
图8是图4中转动机构在半折叠状态下的侧面结构示意图；
图9是图8中转动机构进一步折叠后的侧面结构示意图；
图10是图9中的转动机构在完全折叠后的侧面结构示意图；
图11是本发明提供的转动机构带有外观遮蔽组件时的结构示意图；
图12是图11中外观遮蔽组件的结构示意图；
图13是图12中外观遮蔽组件的局部放大图；
图14是图12中外观遮蔽组件的中间轴的结构示意图；
图15是本发明另一实施例中转动机构的结构示意图；
图16是图15中转动机构的转动件与恒长单元的结构示意图；
图17是图15中恒长单元弯曲状态下的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。
请参阅图1至图3，是本发明实施例提供的折叠终端，包括转动机构100、两个主体部分200、及柔性屏300。折叠手机的两个主体部分200通过转动机构100连接，利用转动机构100，可以使得两个主体部分200相对转动，从而实现折叠手机的折叠及展开。柔性屏300包括两个固定部301及一弯曲部302，两个固定部301分别与两个主体部固定连接，弯曲部302与转动机构100相对设置。当折叠手机处于折叠状态时，弯曲部302能够呈弧形的弯曲状，且柔性屏300位于整个折叠手机的外侧面处。
本实施例中的折叠终端可以为各类外侧面覆盖有柔性屏终端装置，例如可折叠的手机、笔记本电脑、平板电脑、可折叠显示设备、可折叠显示屏、可穿戴设备、PDA等。
如图4所示，转动机构100包括导向轴1、至少两个转动件2a、2b、及至少两个恒长单元3a、3b。导向轴1的两侧均设置有转动件2a、2b，通过导向轴1可以实现两侧的转动件2a、2b之间的相对转动，进而使得折叠终端可以折叠或展开。请参见图3及图4，在一些实现方式中，转动件为两个，两转动件2a、2b分别位于导向轴的两侧。此外，在其他实施方式中，转动件的数量并不局限于两个，转动件还可以为三个，导向轴的一侧设置有一个转动件，另一侧设置两个转动件；或者，转动件还可以为四个，两两分别设置导向轴的两侧。
如图5所示，在一些实现方式中，导向轴1上设置有弧形槽120。转动件2a上设置有弧形部20，弧形部20滑动设置于弧形槽120，以使转动件2a能够相对导向轴1转动。通过弧形槽120与弧形部20的配合，能够使得两个转动件2相对导向轴1转动。本实施例中，弧形槽120与弧形部20一一对应配合。当然在其他实施方式中，弧形槽120也可以为一个，两个转动件2的弧形部20可以沿导向轴1的轴向并排设置在同一个弧形槽120中。
在一些实现方式中，恒长单元3a、3b为两个。恒长单元3a、3b为具有固定长度且能够弯曲的长条形，各恒长单元3a、3b在自身长度方向上具有相对的定位端30a及滑动端30b。恒长单元3a的定位端30a与位于导向轴1一侧的转动件2a固定连接或转动连接，恒长单元3a的滑动端30b沿恒长单元3a的长度方向滑动连接于位于导向轴1另一侧的转动件2b。相应地，恒长单元3b的定位端30a与转动件2b固定连接或转动连接，恒长单元3b的滑动端30b与另一转动件2a滑动连接。使得各转动件2a、2b上均设置有定位端30a和滑动端30b。此外，作为其他的实现方式，恒长单元的数目并不局限于两个，恒长单元还可以为三个，其中两个恒长单元的定位端可以与转动件2a固定连接、滑动端与转动件2b滑动连接，另一个恒长单元的定位端可以与转动件2b固定连接、滑动端与转动件2a滑动连接，使得各转动件2a、2b上均设置有定位端30a和滑动端30b，进一步，恒长单元的数目还可以为四个或更多。
恒长单元3a、3b的滑动端30b能够用于与主体部分200连接。当两个转动件2a、2b绕导向轴1转动时，恒长单元3a的滑动端30b相对转动件2b滑动，恒长单元3b的滑动端30b相对另一转动件2a滑动，两个恒长单元3a的滑动端30b的滑动能够带动两个主体部分200移动，主体部分200可以带动柔性屏200的固定部301移动，从而使得折叠终端及其柔性屏200折叠或展开。
如图7所示，为转动机构100完全展开状态下的示意图，如图7及图8为转动机构100折叠过程中的示意图，如图10所示为转动机构100完全折叠状态下的示意图。在折叠过程中，转动件2a、2b是以弧形部20及弧形槽120所确定的弧度进行转动，在弧形部20厚度方向的中心位置处，由两个滑动端30b之间形成的中心连线长度会随着转动件2a、2b的转动发生改变。在折叠终端的折叠外侧处，存在与中心连接相平行的折叠外侧连线，该折叠外侧连线的两端在折叠终端厚度方向上与中心连线的两端平齐，折叠外侧连接在逐渐远离中心连接时，折叠外侧连线的长度受转动弧度影响先逐渐变小再逐渐变大，在距离中心连线一定距离位置处便存在一条长度不受转动件2a、2b转动影响的连线，即两个恒长单元3的滑动端30b之间能够形成一条长度L恒定不变的连线，该连线所在的位置与柔性屏300所在的位置重合，保证可折叠终端在柔性屏300所在面处的总长度不发生变化，实现可折 叠终端在折叠过程中柔性屏300会受到外力最小，从而保护柔性屏300。
弧形部20厚度方向的中心位置处可以为所述转动机构100在转动时的旋转中心轴。弧形部20厚度方向的中心位置处可以是所述弧形部20的圆心位置处。两个所述滑动端30b在垂直于所述旋转中心轴的平面的投影之间的连线为所述中心连线，所述中心连线是沿着两个所述滑动端30b的滑动方向的连线且沿所述旋转中心轴圆弧过渡(如图8到图10中，滑动端30b的滑动方向有夹角的情况)。假设所述折叠终端在所述中心连线的外侧存在与所述中心连线相平行的多条折叠外侧连线，该折叠外侧连线的两端在折叠终端厚度方向上与所述中心连线的两端平齐。在终端折叠过程中，所述多条折叠外侧连线在逐渐远离中心连线的方向上，折叠外侧连线的长度受转动弧度影响先逐渐变小再逐渐变大，并且在沿着终端厚度方向上距离所述中心连线一定距离的位置处存在一条长度不受转动件2a、2b转动影响的折叠外侧连线L(如图7至图10中所示)，该连线所在的位置与柔性屏300所在的位置重合。
如图4-6所示，在一些实现方式中，导向轴1包括第一子轴11和第二子轴12，第一子轴11和第二子轴12平行且相对设置，第一子轴11和第二子轴12固定连接，弧形槽120为设置在第一子轴11和第二子轴12之间的空隙。利用第一子轴11和第二子轴12之间的空隙形成弧形槽120，可以方便加工成型，且利于将弧形部20装配到弧形槽120中。具体实施过程中，可以在第一子轴11上设置凹弧面，第二子轴12上设置凸弧面，凸弧面与凹弧面相对设置，且在第一子轴11和第二子轴12装配后，凸弧面与凹弧面之间形成有空隙，该空隙即为弧形槽120。
在一些实现方式中，导向轴1上设置有弧形导向槽122，恒长单元3滑动穿设弧形导向槽122。恒长单元3滑动穿设弧形导向槽122是指，恒长单元3穿过弧形导向槽122，并有部分恒长单元3位于该弧形导向槽中，且恒长单元3能够在弧形导向槽122中沿自身长度方向进行滑动。利用弧形导向槽122可以使得恒长单元3能够按照预定的弧度大小进行弯曲，以使得恒长单元3的滑动端30b能够按照预设轨迹移动，减小柔性屏300受到的外力，同时可以避免恒长单元3受压的时候恒长单元3拱起使长度发生变化。
如图6所示，在一些实现方式中，恒长单元3包括多个链节30，多个链节30串联，且相邻两个链节30之间转动连接。通过链节30之间的转动，可以实现恒长单元3的弯曲。更具体地，各链节30包括第一连接块31和两个第二连接块32，同一链节30中，第一连接块31固定在两个第二连接块32之间，两个第二连接块32之间形成有连接槽33，第一连接块31通过转轴34转动连接在相邻另一链节30的连接槽33中。
本实施例中，位于恒长单元3定位端30a的链节30通过固定件35与转动件2连接。固定件35与转动件2固定连接，固定件35与链节30转动连接。此处，在其他实施方式中，位于恒长单元3定位端30a的链节30可以直接与转动件2转动连接或者固定连接。
如图6所示，在一些实现方式中，转动件2上设置有滑槽210，滑槽210具有相对设置的两个槽壁，各槽壁上均设置有滑道2100，恒长单元3的滑动端30b设置有滑块36，滑块36滑动设置于滑槽210中，滑块36上相背的两侧处均设置有滑动耳37，滑动耳37滑动设置于滑道2100中。利用滑块36与滑槽210的滑动配合、滑动耳37与滑道2100的配合，可以保证恒长单元3的滑动端30b滑动的稳定性，且能够将滑动端30b限制在转动件 2上，使得滑动端30b不会与转动件2分离。进一步，转轴34的两端延伸至链节30外侧并能够与滑道2100滑动配合，可以保证恒长单元3滑移的稳定性。滑块36可与主体部分200进行固定连接，以带动主体部分200移动。
转动件2包括转动板21及至少两个转动块3，各转动块3均固定于转动板21，其中两个转动块3间隔设置且二者之间的间隙形成滑槽210，滑道2100设置在该转动块3与转动板21之间。利用转动块3与转动板21之间的配合，可以方便形成滑槽210与滑道2100，利于加工制备且方便转动件2与滑块36之间的装配连接。
各转动块3上均设置有弧形部20，恒长单元3限位在两个弧形部20之间，利用两个弧形部20可以对恒长单元3形成限位作用，避免恒长单元3在弯曲过程中晃动而影响滑动端30b的滑动轨迹。
进一步，如图11所示，在一些实现方式中，转动机构2还包括两个转动件2c、2d、及两个恒长单元3c、3d，两个转动件2c、2d的结构与两个转动件2a、2b完全相同，恒长单元3c、3d的结构与前述恒长单元3a、3b相同，此处不再赘述。通过四个转动件及四个恒长单元的配合，可以保证两个主体部分201转动的稳定性。
如图11所示，转动机构200还包括外观遮蔽组件4，外观遮蔽组件4位于导向轴1远离柔性屏300的一侧处，即导向轴1位于外观遮蔽组件4与柔性屏300之间，从而使得外观遮蔽组件4位于折叠状态下两组转动组件之间。利用外观遮蔽组件4可以将转动组件2a、2b的背面进行遮蔽，以使得可折叠终端的背面结构简洁。
如图12所示，外观遮蔽组件4包括中间轴41及两个遮蔽板42a、42b，两个遮蔽板42a、42b分别与中间轴41转动连接，中间轴41位于遮蔽板42a、42b与导向轴1之间，以将中间轴41遮挡在可折叠终端的内部。中间轴41可以为一个、两个或更多个，且沿导向轴1的长度方向排布，以保证两个遮蔽板42a、42b相对转动的稳定性。
遮蔽板42a与转动件2a、2c滑动配合，遮蔽板42b与转动件2b、2d滑动配合，以在折叠或展开过程中遮蔽板可以相对转动件产生滑移。遮蔽板42a、42b在导向轴1轴向上的两相对的侧端处设置有侧挡部421，转动件及恒长单元位于遮蔽板42a、42b的两个侧挡部421之间。侧挡部421可以对转动件的侧端部进行遮挡，以使得可折叠终端的两侧端部处外形简洁。遮蔽板42a、42b的侧挡部421上设置有滑动槽420，转动件2a的侧端上设置有侧凸起25，侧凸起25滑动设置于滑动槽420中，利用侧凸起25与滑动槽420的滑动配合，可以实现遮蔽板42a、42b与转动件之间的相对滑动。
如图13及图14所示，中间轴41上远离导向轴1的一侧设置有中间槽410，中间轴41上设置有两个子轴411，中间槽410位于两个子轴411之间，更具体地，两个子轴411分别位于中间槽410的两个相对的槽壁上。两个遮蔽板42a、42b分别转动连接于两个子轴411，在折叠状态下，两个遮蔽板42a、42b相临近的端部位于中间槽410中，在展开状态下，两个遮蔽板42a、42b相临近的端部相互抵接。利用中间槽410，可以收容两个遮蔽板42a、42b相临近的端部，以保证在展开状态下两个遮蔽板42a、42b相临近的端部能够抵接，以将导向轴1及两个转动组件2a、2b完全遮挡。在进行折叠或展开时，两个遮蔽板42a、42b相对中间轴41，中间轴41可以在可折叠终端的厚度方向上产生一定浮动，以适 应整个可折叠终端的折叠及展开。
两个遮蔽板42a、42b相互远离的端部分别滑动连接至两个主体部分201内部，以使得遮蔽板42可以在折叠状态滑动至两个主体部分201的内部。
如图4所示，导向轴1的两端均设置有导向端板13，利用导向端板13可以对转动组件2a、2b的侧端处进行遮挡，在折叠状态下，导向端板13可以避免转动组件2a、2b的内部外露。导向端板13可以位于侧挡部421的内侧处，也可以是导向端板13位于侧挡部421的外侧处。
在上述实施方式中，恒长单元采用多个链节30构成，此外，在其他实施方式中，如图15-17所示，恒长单元3e还可以采用记忆金属制成，通过记忆金属的可弯曲特性实现恒长单元3e的弯曲。当然，在其他实施方式中，恒长单元还可以采用碳纤、玻纤、塑胶件或者其他能够弯曲的材料制成。
本发明提供的转动机构大致呈为对称的左右两部分，左右两部分都绕着中间的导向轴可以转动，转动时左右两个部分通过滑块与转动件之间的滑动方式又能耦合在一起，左侧部分转动时会驱动右侧的滑动，右侧部分转动时会驱动左侧的滑动。两个滑块之间的具有一长度L保持恒定的连线，柔性屏位于该连线处。这样主体部分内的结构件与滑动件固定连接后，转动件则相对主体部分滑动配合，可以实现可折叠设备在转动折叠过程中总的长度不变，而且柔性屏不会承受来自转轴滑动需要的驱动力。
该转动机构的整体方案由转动组件与外观遮蔽组件共同实现，转动组件可以实现终端设备的折叠，且折叠过程中对柔性屏不会有附加的拉扯力，能有效保护屏幕，而且在展开状态朝中间挤压设备时，导向轴自身不会有独立的滑动而导致屏幕起拱破坏屏幕。结合两个转动组件可以设置遮蔽件，遮蔽件也分为对称的两个部分，两个遮蔽件分别位于导向轴的两侧，两个遮蔽件通过浮动的中间轴连接，在折叠过程中可以实现机构的外观整体简约。
本发明实施例还提供一种显示装置，包括柔性屏及上述实施例中的转动机构,所述柔性屏包括两个固定部及一弯曲部，两个所述固定部分别与两个所述主体部固定连接；两个所述固定部分别与位于所述导向轴两侧的所述滑动块固定设置，所述弯曲部与所述导向轴相对设置。
可以理解的，所述显示装置可以运用于折叠手机、折叠显示器、折叠平板电脑等折叠终端。

Claims (11)

  1. 一种转动机构，其特征在于，包括导向轴、至少两个转动件及至少两个恒长单元，所述导向轴的两侧均设置有所述转动件；所述导向轴上设置有弧形槽；所述转动件上设置有弧形部，所述弧形部滑动设置于所述弧形槽，以使所述转动件能够相对所述导向轴转动；所述恒长单元为具有固定长度且能够弯曲的长条形，所述恒长单元在自身长度方向上具有相对的定位端及滑动端，所述定位端与位于所述导向轴一侧的所述转动件固定连接或转动连接，所述滑动端沿所述恒长单元的长度方向滑动连接于位于所述导向轴另一侧的所述转动件；各所述转动件上均设置有所述定位端及所述滑动端。
  2. 根据权利要求1所述的转动机构，其特征在于，所述导向轴包括第一子轴和第二子轴，所述第一子轴与所述第二子轴平行且相对设置，且二者固定连接，所述弧形槽为设置在所述第一子轴与所述第二子轴之间的空隙。
  3. 根据权利要求1所述的转动机构，其特征在于，所述导向轴上设置有弧形导向槽，所述恒长单元滑动穿设所述弧形导向槽。
  4. 根据权利要求1所述的转动机构，其特征在于，所述恒长单元包括多个链节，多个所述链节串联，且相邻两个链节之间转动连接；或者，
    所述恒长单元为能够弯曲的材料制成。
  5. 根据权利要求1所述的转动机构，其特征在于，所述转动件上设置有滑槽，所述滑槽具有相对设置的两个槽壁，各所述槽壁上均设置有滑道，所述恒长单元的滑动端设置有滑块，所述滑块滑动设置于所述滑槽中，所述滑块上相背的两侧处均设置有滑动耳，所述滑动耳滑动设置于所述滑道中。
  6. 根据权利要求5所述的转动机构，其特征在于，所述转动件包括转动板及至少两个转动块，各所述转动块均固定于所述转动板，其中两个所述转动块间隔设置且二者之间的间隙形成所述滑槽，所述滑道设置在该所述转动块与所述转动板之间。
  7. 根据权利要求6所述的转动机构，其特征在于，所述转动块上均设置有所述弧形部，所述恒长单元限位在两个所述弧形部之间。
  8. 根据权利要求1所述的转动机构，其特征在于，所述转动机构还包括外观遮蔽组件，所述外观遮蔽组件包括中间轴及两个遮蔽板，两个所述遮蔽板分别与中间轴转动连接，两个所述遮蔽板分别与所述导向轴两侧的所述转动件滑动配合。
  9. 根据权利要求8所述的转动机构，其特征在于，所述中间轴上远离所述导向轴的一侧设置有中间槽，所述中间轴上设置有两个子轴，所述中间槽位于两个子轴之间，；两个所述遮蔽板分别转动连接于两个所述子轴；在折叠状态下，两个所述遮蔽板相临近的端部位于所述中间槽中；在展开状态下，两个所述遮蔽板相临近的端部相互抵接。
  10. 一种显示装置，其特征在于，包括柔性屏及权利要求1-9任一项所述的转动机构,所述柔性屏包括两个固定部及一弯曲部，两个所述固定部分别与位于所述导向轴两侧的所述滑动块固定设置，所述弯曲部与所述导向轴相对设置。
  11. 一种折叠终端，其特征在于，包括权利要求1-9任一项所述的转动机构、两个主体部分、及柔性屏；两个所述主体部分通过所述转动机构连接，所述柔性屏包括两个固定部及一弯曲部，两个所述固定部分别与两个所述主体部固定连接，所述弯曲部与所述转动机构相对设置。
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