WO2020124352A1 - 阻尼件、铰链装置及电子装置 - Google Patents

阻尼件、铰链装置及电子装置 Download PDF

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Publication number
WO2020124352A1
WO2020124352A1 PCT/CN2018/121714 CN2018121714W WO2020124352A1 WO 2020124352 A1 WO2020124352 A1 WO 2020124352A1 CN 2018121714 W CN2018121714 W CN 2018121714W WO 2020124352 A1 WO2020124352 A1 WO 2020124352A1
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WO
WIPO (PCT)
Prior art keywords
damping
rotating shaft
hinge
positioning
positioning surface
Prior art date
Application number
PCT/CN2018/121714
Other languages
English (en)
French (fr)
Inventor
欧阳烁
陈松亚
凡小飞
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 CN201880095913.2A priority Critical patent/CN112639309A/zh
Priority to PCT/CN2018/121714 priority patent/WO2020124352A1/zh
Publication of WO2020124352A1 publication Critical patent/WO2020124352A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • 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

Definitions

  • the present application relates to the field of flexible screen support, in particular to a hinge device supporting a flexible screen, a damper of the hinge device, and an electronic device provided with the hinge device.
  • the folding display screen generally supports and bends the flexible screen through a hinge, and a damping device is generally provided on the hinge to provide a damping force when the hinge is bent.
  • a damping device is generally provided on the hinge to provide a damping force when the hinge is bent.
  • the structure of the existing hinge damping device is complicated, the manufacturing cost is high, and the auxiliary positioning reliability is poor.
  • the present application provides a damping member with a simple structure and good auxiliary positioning reliability, a hinge device provided with the damping member, and an electronic device provided with the hinge device.
  • a damping member provided by the present application is installed on a rotating shaft of a hinge device, and is used to provide resistance of the hinge when rotating.
  • the damping member includes a damping sheet, and an aperture with elastic scalability is formed on the damping sheet At least one damping hole, the rotating shaft is rotatably inserted into at least one of the damping holes, and when the hinge is in a deployed state, the rotating shaft is positioned at a first position in at least one of the damping holes; the hinge In the bent state, the rotating shaft is positioned at at least a second position in the damping hole.
  • the present application also provides a hinge device, including a plurality of chain links hinged to each other through a rotating shaft, and a damping member, the damping member is used to provide resistance when the hinge rotates, the damping member includes a damping plate, the damping The sheet is provided with at least one damping hole having an elastically scalable aperture, the rotating shaft is rotatably inserted into at least one of the damping holes, and when the hinge is deployed, the rotating shaft is positioned at least one of the damping The first position in the hole; when the hinge is in a bent state, the rotating shaft is positioned at at least a second position in the damping hole.
  • the present application also provides an electronic device including a housing and a flexible screen provided on the housing, the housing includes a first frame, a second frame, and a first frame and a second frame
  • a hinge device between bodies the hinge device includes a plurality of chain links hinged to each other through a rotating shaft, and a damping member, the damping member is used to provide resistance when the hinge rotates, and the damping member includes a damping plate, so
  • the damping sheet is provided with at least one damping hole having an elastically scalable aperture, the rotating shaft is rotatably inserted into at least one of the damping holes, and when the hinge is deployed, the rotating shaft is positioned at at least one A first position in the damping hole; when the hinge is in a bent state, the rotating shaft is positioned at at least a second position in the damping hole.
  • the rotating shaft in the hinge device of the electronic device of the present application can be rotatably inserted into the damping hole of the corresponding damping sheet, and when the rotating shaft is positioned at the first position in the damping hole, the damping sheet can stably position the hinge device at Unfolded state; when the rotating shaft is positioned at the second position in the damping hole, the damping sheet can stably position the hinge device in the bent state. Since the damping member of the present application is only a damping piece provided on the rotating shaft, and can stably maintain the hinge device in the expanded state or the bent state, the damping member of the present application has a simple structure, low manufacturing cost, and auxiliary positioning Good reliability.
  • FIG. 1 is a three-dimensional schematic diagram of an electronic device in one embodiment of the present application.
  • FIG. 2 is a schematic perspective structural view of the electronic device in FIG. 1 after the backplane is removed.
  • FIG. 3 is a schematic perspective view of the hinge device of the electronic device in FIG. 1.
  • FIG. 4 is an exploded perspective view of the hinge body of the hinge device in FIG. 3.
  • FIG. 5 is a partial perspective assembly diagram of the hinge body in FIG. 4.
  • FIG. 6 is an exploded perspective view of a damping member and two rotating shafts in FIG. 3.
  • FIG. 7 is an enlarged view of the damping sheet in FIG. 6.
  • FIG. 8 is a schematic front view of the damping sheet in FIG. 7.
  • FIG. 9 is a perspective assembly view of FIG. 3.
  • FIG. 10 is a schematic structural view of one of the damping members and two rotating shafts in FIG. 11.
  • FIG. 11 is a schematic perspective view of the bent state of the hinge device in FIG. 9.
  • FIG. 12 is a schematic structural view of one of the damping members and two rotating shafts in FIG. 11.
  • 13a-13c are schematic diagrams of the manufacturing process of the damping sheet in FIG. 7.
  • FIG. 14 is a flowchart of the method for manufacturing the damping sheet in FIG. 7.
  • FIG. 1 is a three-dimensional schematic diagram of an electronic device in one embodiment of the present application
  • FIG. 2 is another perspective three-dimensional schematic diagram of the electronic device in FIG. 1 after the backplane is removed
  • 3 is a schematic perspective view of the hinge device of the electronic device in FIG. 1.
  • the electronic device 100 in one embodiment of the present application includes a casing 20 and a flexible screen 30 disposed on the casing 20.
  • the casing 20 includes a first frame 21, a second frame 23 and a hinge device 25 connected between the first frame 21 and the second frame 23.
  • the flexible screen 30 is disposed on the first frame 21, the second frame 23 and the hinge device 25.
  • the flexible screen 30 is provided with a bendable area 31 corresponding to the hinge device 25 and two non-bendable areas 33 connected to opposite sides of the bendable area 31.
  • the hinge device 25 is used to support the flexible screen 30.
  • the hinge device 25 includes a hinge body 26, a plurality of rotating shafts 27 for articulating the hinge body 26 in one body, a damping member 28 mounted on the rotating shaft 27, and two hinge bodies The two opposite ends of the 26 drive the two transmission mechanisms 29 of the hinge body 26 to rotate.
  • the damping member 28 includes a plurality of damping pieces 280, and each damping piece 280 is provided with at least one damping hole 281 (as shown in FIG. 6) whose aperture can elastically expand and contract.
  • These rotating shafts 27 are rotatably inserted into corresponding damping pieces 280.
  • the hinge device 25 In the damping hole 281, when the rotating shaft 27 is positioned at the first position in the damping hole 281, the hinge device 25 is maintained in a deployed state, so that the flexible screen 30 is in a deployed state with the hinge device 25; in the rotating shaft When 27 is positioned at the second position in the damping hole 281, the hinge device 25 is kept in a bent state, so that the flexible screen 30 follows the hinge device 25 in a bent state.
  • the electronic device 100 is, for example, but not limited to any other products and components with display functions, such as mobile phones, tablet computers, displays, liquid crystal panels, OLED panels, TVs, smart watches, VR head-mounted displays, and car displays. .
  • the rotating shaft 27 in the hinge device 25 of the electronic device 100 of the present application is rotatably inserted into the damping hole 281 of the corresponding damping sheet 280.
  • the damping sheet 280 can The hinge device 25 is stably positioned in the unfolded state; when the rotating shaft 27 is positioned at the second position in the damping hole 281, the damping sheet 280 can stably position the hinge device 25 in the bent state.
  • the damping member 28 of the present application is only the damping sheet 280 provided on the rotating shaft 27 and can stably maintain the hinge device 25 in the expanded state or the bent state, the structure of the damping member 28 of the present application is simple and the manufacturing cost Low, and the reliability of auxiliary positioning is good.
  • FIG. 4 is a perspective exploded schematic view of the hinge body of the hinge device in FIG. 3;
  • FIG. 5 is a partial perspective assembly view of the hinge body in FIG. 4.
  • the hinge body 26 is located between the first frame 21 and the second frame 23.
  • the hinge body 26 includes several hinges, which are connected together by a rotating shaft 27 and a transmission mechanism 29.
  • the hinges include a first hinge 262 located in the middle, two second hinges 264 located on opposite sides of the first hinge 262, and each second hinge 264 facing away The third hinge 265 on the first hinge 262 side.
  • the first hinge 262, the second hinge 264 and the third hinge 265 are connected by a rotating shaft 27 and a transmission mechanism 29.
  • the transmission mechanism 29 includes a housing 291, a gear assembly 293 disposed in the housing 291, and two pairs of connecting shoulders 295 disposed on opposite sides of the gear assembly 293.
  • the rotation of the gear assembly 293 of the transmission mechanism 29 can drive the third hinge 265 to rotate relative to the corresponding second hinge 264, and the second hinge 264 to rotate relative to the first hinge 262.
  • two opposite ends of the hinge body 26 are respectively provided with two damping members 28, and the number of rotating shafts 27 at the same end of the hinge body 26 is four.
  • the two third hinges 265 extend the corresponding second hinge 264 at the same end of the hinge body 26, so that the two third hinges 265 are between the ends of the first hinge 262 and the second hinge 264
  • An installation space 267 is enclosed, and the installation space 267 is used for installing the damping member 28 and the transmission mechanism 29.
  • the damping member 28 and the transmission mechanism 29 are installed in the corresponding installation space 267, so that the structure of the hinge device 25 is closer, the layout of the components is more reasonable, and the processing accuracy is higher.
  • each connecting bar 2621 protrudes outward from the middle of the two opposite sides of the first hinge 262, and each connecting bar 2621 extends along the length of the first hinge 262.
  • the opposite ends of each connecting bar 2621 are axially provided with a connecting hole 2623.
  • Two opposite sides of the first hinge 262 are respectively provided with receiving grooves 2625 at adjacent ends, and each receiving groove 2625 is adjacent to the end surface of the corresponding connecting bar 2621.
  • the cross section of each receiving groove 2625 is an arc surface, and the axis line of the arc surface coincides with the axis line of the connecting hole 2623 of the corresponding connecting bar 2621.
  • the front surface of the first hinge 262 is provided with a plurality of mounting holes 2628. These mounting holes 2628 are used to connect the hinge device 25 to the back of the flexible screen 30.
  • each second hinge 264 Two opposite sides of each second hinge 264 are respectively provided with a connecting groove 2641 along the longitudinal direction thereof.
  • the connecting groove 2641 is used to rotatably receive the corresponding connecting bar 2621 on the first hinge 262.
  • the cross section of each connecting groove 2641 is a circular arc surface, and the outer surface of the connecting bar 2621 of the first hinge 262 is relatively slidably attached to the inner surface of the corresponding connecting groove 2641.
  • the two opposite ends of each second hinge 264 are respectively protruded with a connecting bar 2643, each connecting bar 2643 extends along the length of the second hinge 264, and the outer side of each connecting bar 2643 is Arc surface.
  • Each connecting bar 2643 is rotatably received in a corresponding receiving groove 2625 on the first hinge 262.
  • a connecting hole 2645 is formed at the end of each connecting bar 2643.
  • the connecting hole 2645 extends along the length of the second hinge 264 and passes through the connecting bar 2643.
  • the center line of the connecting hole 2645 coincides with the center line of the connecting groove 2641.
  • Each third hinge 265 is convexly provided with a connecting bar 2651 at the middle of the side facing the corresponding second hinge 264, the connecting bar 2651 extends along the length of the third hinge 265, and the outer side of the connecting bar 2651 is round Curved surface.
  • the connecting bar 2651 is rotatably received in the connecting groove 2641 of the corresponding second hinge 264.
  • a side surface of the third hinge 265 facing the corresponding second hinge 264 is provided with a receiving groove 2655 at opposite ends of the connecting bar 2651 respectively, the receiving groove 2655 is used for rotatably receiving the connecting bar of the corresponding second hinge 264 2643.
  • the opposite ends of the connecting bar 2651 are respectively provided with connecting holes along the longitudinal direction thereof, and the connecting holes are used to connect the corresponding rotating shaft 27.
  • the front surface of the third hinge 265 is provided with a plurality of fixing grooves 2656 at opposite ends of the connecting bar 2651 respectively.
  • the fixing grooves 2656 are used to connect the connecting shoulder 295 of the transmission mechanism 29.
  • the side of the third hinge 265 facing away from the connecting bar 2651 is provided with a connecting portion 2658 for connecting to the first frame body 21 or the second frame body 23.
  • FIG. 6 is a perspective exploded view of a damping member and two rotating shafts in FIG. 3;
  • FIG. 7 is an enlarged view of the damping sheet in FIG. 6;
  • FIG. 8 is a diagram of the damping sheet in FIG. Front view.
  • Each rotating shaft 27 includes a connecting section 271 at one end, a positioning section 273 located axially at the rear end of the connecting section 271, and a rotating shaft section 275 located axially at the rear end of the positioning section 273.
  • the outer diameter of the positioning section 273 is larger than the outer diameters of the connecting section 271 and the rotating shaft section 275.
  • the outer peripheral surface of the positioning section 273 is provided with a first mating surface 2732 and a second mating surface 2734 along its length.
  • the mating surface 2732 and the second mating surface 2734 are located on opposite sides of the positioning section 273.
  • the first mating surface 2732 and the second mating surface 2734 are both parallel to the axis of the rotating shaft 27.
  • Each damping member 28 includes a plurality of elastic damping sheets 280.
  • the damping sheet 280 is provided with a first positioning surface 282 and a second positioning surface 283 on the inner circumferential surface of the damping hole 281, when the rotating shaft 27 is positioned on the first positioning surface 281 ,
  • the rotating shaft 27 is located at the first position in the damping hole 281, that is, the position of the rotating shaft 27 in the unfolded state of the hinge device 25; when the rotating shaft 27 is positioned on the second positioning surface 283, the rotating shaft 27 is located at the damper
  • the second position in the hole 281 is the position of the rotating shaft 27 where the hinge device 25 is in a bent state.
  • first positioning surface 282 is parallel to the axis line of the corresponding rotating shaft 27, and the second positioning An angle is formed between the surface 283 and the axis of the corresponding rotating shaft 27.
  • each rotating shaft 27 can be received in the corresponding damping hole 281.
  • the rotating shaft 27 is located The first position in the damping hole 281, that is, the hinge device 25 is in the unfolded state; when the second mating surface 2734 of the rotating shaft 27 fits on the second positioning surface 283 of the corresponding damping sheet 280, the rotating shaft 27 is located The second position in the damping hole 281, that is, the hinge device 25 is in a bent state.
  • the first positioning surface 282 in each damping hole 281 is provided with a first receiving groove 2821, and the second positioning surface 283 is provided with a second receiving groove 2831.
  • the rotating shaft 27 is located at the first position in the corresponding damping hole 281 That is, the first mating surface 2732 of the rotating shaft 27 is attached to the first positioning surface 282, and one side of the second mating surface 2734 of the rotating shaft 27 is received in the second receiving groove 2831.
  • a mating surface 2732 is completely attached to the first positioning surface 282, that is, there is no gap between the first mating surface 2732 and the first positioning surface 282, and the rotating shaft 27 pushes against the damping hole 281
  • the force of the inner wall is the smallest value, and the inner diameter of the damping hole 281 is least expanded; when the rotating shaft 27 is located at the second position in the corresponding damping hole 281, the second mating surface 2734 of the rotating shaft 27 fits on the second positioning surface 283
  • the second mating surface 2734 is completely attached to the second positioning surface 283, namely There is no gap between the second mating surface 2734 and the second positioning surface 283, the force of the rotating shaft 27 against the inner wall of the damping hole 281 is a minimum value, and the expansion of the inner diameter of the damping hole 281 is the smallest.
  • each damping sheet 280 is approximately rectangular, and includes two elastic positioning rings 285 at opposite ends of the damping sheet 280, and a connecting portion 287 connected between the two elastic positioning rings 285, that is, The two elastic positioning rings 285 are located on opposite sides of the connecting portion 287 respectively.
  • Each elastic positioning ring 285 includes a first elastic shoulder 2850 protruding at one end of the connecting portion 287 and a second elastic shoulder 2855 protruding at the opposite end of the connecting portion 287.
  • the first elastic shoulder 2850 and the second elastic shoulder 2855 of the same elastic positioning ring 285 are disposed oppositely, and there is a space 288 between the two.
  • the first elastic shoulder 2850 and the second elastic shoulder 2855 form a damping hole 281.
  • first elastic shoulder 2850 and the corresponding second elastic shoulder 2855 are protruded on the same side of the connecting portion 287.
  • first elastic shoulder 2850 includes a portion extending from the connecting portion 287 toward the second elastic shoulder 2855
  • first extension piece 2851 and a first clamping bar 2853 provided at the end of the first extension piece 2851
  • second elastic shoulder 2855 includes a first extension extending horizontally from the connecting portion 287 to the first elastic shoulder 2850
  • Two extension pieces 2856, and a second clamping bar 2858 disposed at the end of the second extension piece 2856.
  • the first clamping strip 2853 of the first elastic shoulder 2850 and the second clamping strip 2858 of the second elastic shoulder 2855 enclose a damping hole 281, and there is a gap 288 between the first clamping strip 2853 and the second clamping strip 2858.
  • both the first clamping bar 2853 and the second clamping bar 2858 are arc-shaped, and the side surface of the first clamping bar 2853 facing the corresponding second clamping bar 2858 is the first arc surface 2854,
  • the first arc surface 2854 is the inner circumferential surface of the first clamping bar 2853;
  • the side surface of the second clamping bar 2858 facing the first clamping bar 2853 is the second arc surface 2857,
  • the first The second circular arc surface 2857 is the inner circumferential surface of the second clamping bar 2858.
  • the first clamping bar 2853 and the second clamping bar 2858 of the same elastic positioning ring 285 are opposite to each other.
  • the first circular arc surface 2854 and the second circular arc surface 2857 enclose a substantially circular damping hole 281.
  • the first positioning surface 282 of each elastic positioning ring 285 is disposed on the inner circumferential surface of the first clamping bar 2853.
  • the first positioning surface 282 is a plane parallel to the axis of the damping hole 281;
  • the second positioning surface 283 is disposed On the inner circumferential surface of the second clamping bar 2858, the second positioning surface 283 is an inclined surface, and there is an angle between the second positioning surface 283 and the axis of the damping hole 281.
  • the first receiving groove 2821 of the elastic positioning ring 285 is disposed on the first positioning surface 282.
  • the cross section of the first receiving groove 2821 is an arc surface.
  • the first receiving groove 2821 is located in the middle of the first positioning surface 282
  • the second receiving groove 2831 is disposed on the second positioning surface 283.
  • the groove cross section of the second receiving groove 2831 is an arc surface.
  • the second receiving groove 2831 is located in the middle of the second positioning surface 283.
  • the positioning section 273 of the rotating shaft 27 inserted into the damping hole 281 of each elastic positioning ring 285 is a cylindrical rod.
  • the second mating surface 2734 is away from the connection
  • the side of the portion 287 is accommodated in the second accommodating groove 2831, and the outer circumferential surface of the rotating shaft 27 is attached to the arc surface of the second accommodating groove 2831; when the rotating shaft 27 is located in the second of the damping hole 281 In the position, the side of the first mating surface 2732 away from the connecting portion 287 is accommodated in the first accommodating groove 2821, and the outer peripheral surface of the rotating shaft 27 is attached to the arc surface of the first accommodating groove 2821.
  • FIG. 9 is a three-dimensional assembly diagram of FIG. 3.
  • a plurality of damping pieces 280 of each damping member 28 are stacked together, so that the damping holes 281 of each damping piece 280 are aligned with the damping holes 281 of the other damping pieces 280.
  • the positioning surface 282 is located on the same plane, and the second positioning surface is located on the same plane. Then insert one end of each rotating shaft 27 with the rotating shaft section 275 into the damping hole 281 of the corresponding damping member 28 until the outer peripheral surface of the positioning section 273 of the rotating shaft 27 contacts the inner peripheral surface of the damping hole 281.
  • each transmission mechanism 29 is connected with four rotating shafts 27, that is, the connecting sections 271 of the four rotating shafts 27 are respectively connected to the gear assembly 293 of the transmission mechanism 29
  • the four rotating shafts 27 are juxtaposed, and the connecting shoulders 295 on opposite sides of the transmission mechanism 29 are respectively connected to the two outermost rotating shafts 27.
  • the rotation of the gear assembly 293 can drive the rotating shaft 27 and the damping member 28 to rotate.
  • each transmission mechanism 29, the corresponding four rotating shafts 27, and the corresponding two damping members 28 are connected together.
  • the transmission mechanism 29 can be linked, that is, rotating a specific one of the components can drive other components to follow the rotation, so that the entire gear mechanism bends.
  • the transmission mechanism 29 adopts a straight rack and straight gear meshing method for interlocking, and the transmission mechanism 29 may also adopt a helical gear meshing linkage method.
  • the connecting bars 2651 of the two third hinges 265 are respectively rotatably received in the connecting grooves 2641 of the two second hinges 264 on the side away from the first hinge 262, and the connecting bars 2643 of each second hinge 264 Accommodated in the accommodating groove 2655 of the corresponding third hinge 265, the connecting hole 2645 on the connecting bar 2643 faces the connecting hole on the end surface of the corresponding connecting bar 2651.
  • the two third hinges 265 at the same end of the hinge body 26 and the end surfaces of the first hinge 262 and the second hinge 264 enclose the installation space 267.
  • the two transmission mechanisms 29 and the corresponding damping members 28 and the rotating shaft 27 are respectively accommodated in the two installation spaces 267 of the hinge body 26, so that the rotating shaft section 275 of each rotating shaft 27 is inserted into the corresponding connecting hole 2645.
  • the damping The piece 28 is located between the hinge main body 26 and the corresponding transmission mechanism 29; the connection shoulder 295 of each transmission mechanism 29 is then connected to the corresponding fixing groove 2656 of the third hinge joint 265, that is, a plurality of locking fasteners respectively pass through the connection shoulder 295 is locked in the connecting hole of the fixing groove 2656, and the two outer rotating shafts 27 are connected to the third hinge 265.
  • the connecting shoulder 295 can be fixed to the connecting section 271 of the rotating shaft 27 by welding or the like, or fixed to the connecting section 271 by other methods, as long as the fixing member can follow the connecting section 271 to rotate.
  • the installed hinge device 25 is placed between the first frame body 21 and the second frame body 23, that is, the connecting portions 2658 of the two third hinge joints 265 are respectively connected to the first frame body 21 and the second frame body 23 on.
  • the back surfaces of the two non-bending areas 33 of the flexible screen 30 are respectively attached to the first frame body 21 and the second frame body 23, and the back surfaces of the bendable area 31 of the flexible screen 30 are provided on the front surface of the hinge device 25 ,
  • the first hinge 262 is connected to the back of the flexible screen 30.
  • the hinge device 25 is connected to the back of the flexible screen 30, and the bendable area 31 of the flexible screen 30 can be bent as the hinge device 25 is bent.
  • FIG. 10 is a structural diagram of one of the damping members and two rotating shafts in FIG. 11.
  • the first hinge joint 262, the second hinge joint 264, and the third hinge joint 265 are connected to the same plane through the rotating shaft 27 and the transmission mechanism 29.
  • the positioning section 273 of each rotating shaft 27 is accommodated in the damping hole 281 of the corresponding damping sheet 280, and the first clamping bar 2853 and the second clamping bar 2858 of the damping hole 281 elastically clamp the positioning of the rotating shaft 27
  • the first mating surface 2732 of the rotating shaft 27 completely fits on the first positioning surface 282 of the inner circumferential surface of the first clamping bar 2853, that is, there is no gap between the first mating surface 2732 and the first positioning surface 282
  • the side of the second mating surface 2732 of the rotating shaft 27 away from the connecting portion 287 is received in the second receiving groove 2831 on the inner peripheral surface of the second clamping bar 2858, and the rotating shaft 27 is adjacent to the side
  • the outer peripheral surface of the second surface is attached to the inner surface of the second receiving groove 2831, thereby reducing the outward expansion of the elastic positioning ring 285, that is, preventing the second extension piece 2856 from deforming and pushing against the flexible screen 30,
  • the flexible screen 30 is prevented from being deformed or damaged.
  • the inner diameter of the damping hole 281 under the condition that the rotating shaft 27 is accommodated is the smallest, and the pressure of the elastic positioning ring 285 against the rotating shaft 27 is the least, that is, the damping force between the damping hole 281 and the rotating shaft 27 is the least, which is convenient for bending the hinge device 25
  • the first mating surface 2732 of each rotating shaft 27 is attached to the corresponding first positioning surface 282, so that the hinge device 25 can be stably maintained in the expanded state.
  • FIG. 11 is a perspective schematic view of the hinge device in FIG. 9 in a bent state
  • FIG. 12 is a structure of one of the damping members and two rotating shafts in FIG. Schematic.
  • a bending force is applied to at least one of the first frame 21 and the second frame 23 of the electronic device 100 to make the third frame connected to the first frame 21 and the second frame 23
  • the hinge 265 rotates in a direction adjacent to each other, and the rotating shaft 27 connected to the third hinge 265 rotates relative to the corresponding second hinge 264, so that the third hinge 265 moves away from the flexible relative to the corresponding second hinge 264
  • One side of the screen 30 is bent; the rotating shaft 27 connected to the third hinge 265 rotates with the third hinge 265 relative to the corresponding second hinge 264; the rotation of the gear assembly 293 drives the second hinge 264 and damps
  • the member 28 rotates relative to the first hinge 262, so that the second hinge 264 is bent relative to the first hinge 262 toward the side away from the flexible screen 30 until the first frame 21 and the second frame 23 are attached to the back Pick up.
  • each rotating shaft 27 rotates relative to the corresponding damping hole 281. Specifically, the first mating surface 2732 of the rotating shaft 27 is disengaged from the corresponding first positioning surface 282, and the rotating shaft 27 The side of the second mating surface 2734 away from the connecting portion 287 is separated from the corresponding second receiving groove 2831, and the outer peripheral surface of the rotating shaft 27 is attached to the arc surface of the second receiving groove 2831.
  • the positioning section 273 of the rotating shaft 27 rotates in the corresponding damping hole 281, and the outer circumferential surface of the positioning section 273 pushes against the inner circumferential surfaces of the first clamping bar 2853 and the second clamping bar 2858, making the first elasticity of the elastic positioning ring 285
  • the shoulder 2850 and the second elastic shoulder 2855 are elastically deformed and away from each other, so that the diameter of the damping hole 281 becomes larger, and the first clamping bar 2853 and the second clamping bar 2858 of the elastic positioning ring 285 are away from each other, so that the damping member 28
  • the elastic positioning ring 285 increases the damping force of the positioning section 273 of the rotating shaft 27; until the second mating surface 2734 of the rotating shaft 27 fits on the second positioning surface 283, the first elastic shoulder 2850 and the second elastic shoulder 2855 are elastically reset and squeezed By pressing the outer circumferential surface of the positioning section 273 of the rotating shaft 27, the diameter of the damping hole 281 is reset to the original size.
  • the side of the first mating surface 2732 of the rotating shaft 27 away from the connecting portion 287 is received in the first receiving groove 2821 on the inner peripheral surface of the first clamping bar 2853, and the outer peripheral surface of the rotating shaft 27 is attached to
  • the second clamping strip 2858 of each elastic positioning ring 285 of the damping member 28 has less elastic deformation, so that the outer surface of the second clamping strip 2858 will not push against the flexible screen 30.
  • the flexible screen 30 can be prevented from being deformed or damaged.
  • the hinge device 25 is bent, and the flexible screen 30 is bent with the hinge device 25.
  • the front face of the first hinge 262, the front faces of the two second hinges 264 and the front faces of the two third hinges 265 share a circular arc surface, so as to facilitate the fitting of the flexible screen 30, and the damping member 28 can enable the hinge device 25 Stably maintain the bending state.
  • the first frame body 21 and the second frame body 23 are pulled outward, so that the third hinges 265 connected to the first frame body 21 and the second frame body 23 face away from each other Direction rotation, the rotating shaft 27 connected to the third hinge 265 rotates relative to the corresponding second hinge 264, so that the third hinge 265 rotates toward the side of the flexible screen 30 relative to the corresponding second hinge 264;
  • the rotation of the gear assembly 293 can drive the second hinge 264 and the damping member 28 to rotate relative to the first hinge 262, so that the second hinge 264 bends toward the side of the flexible screen 30 relative to the first hinge 262 until The hinge device 25 is flattened.
  • each rotating shaft 27 rotates in the corresponding damping hole 281.
  • the second mating surface 2734 of the rotating shaft 27 is disengaged from the corresponding second positioning surface 283, and the first of the rotating shaft 27
  • the side of the mating surface 2732 away from the connecting portion 287 is separated from the corresponding first receiving groove 2821, the positioning section 273 of the rotating shaft 27 rotates in the corresponding damping hole 281, and the outer peripheral surface of the positioning section 273 pushes against the first clamping bar 2853 and the second
  • the inner circumferential surface of the clamping bar 2858 elastically deforms the first elastic shoulder 2850 and the second elastic shoulder 2855 of the elastic positioning ring 285 away from each other so that the diameter of the damping hole 281 becomes larger, and the first clamping bar of the elastic positioning ring 285 2853 and the second clamping strip 2858 are away from each other, so that the damping force of the elastic positioning ring 285 of the damping member 28 to the positioning section 273 of the rotating shaft 27
  • the side of the second mating surface 2734 of the rotating shaft 27 away from the connecting portion 287 is received in the second receiving groove 2831 on the inner peripheral surface of the second clamping bar 2858, and the outer peripheral surface of the rotating shaft 27 is fitted On the arc surface of the second receiving groove 2831, therefore, the elastic deformation of the first elastic shoulder 2850 and the corresponding second elastic shoulder 2855 of each elastic positioning ring 285 of the damping member 28 is small, so that the second elastic shoulder 2855 does not It will push against the flexible screen 30, which can prevent the flexible screen 30 from being deformed or damaged, so that the hinge device 25 can be flattened, the flexible screen 30 can be flattened with the hinge device 25, and the damper 28 can keep the hinge device 25 stable Flat state.
  • the hinge device 25 can be Positioning in any bending state, that is, the damping member 28 can position the hinge device 25 in any bending position.
  • Each damping piece 280 of the damping member 28 of the present application is obtained based on the optimized design scheme of inversion shape. Taking the design of the first positioning surface 282 as an example, the specific design process is as follows:
  • the structure of the damping plate is similar to the structure of the damping plate 280 of the present application, that is, the damping plate includes a first clamping bar 2853 and a second clamping bar 2858 that are spaced apart.
  • the first clamping bar 2853 and the second clamping bar 2858 enclose a damping hole 281, an inner circumferential surface of the first clamping bar 2853 is provided with a first positioning surface 282, and the second clamping bar 2858
  • a second positioning surface 283 is provided on the inner peripheral surface of the shaft, a first mating surface 2732 that can be attached to the first positioning surface 282 and a second mating surface that is attached to the second positioning surface 283 are provided on the rotating shaft 27 2734, the difference is that the first positioning surface and the second positioning surface on the inner circumferential surface of the damping hole of the damping sheet are not provided with a first receiving groove and a second receiving groove;
  • the first positioning surface 282 of the damping hole 281 and the first mating surface 2732 of the rotating shaft 27 are designed as non-interference contact.
  • the first positioning surface 282 includes opposite sides A and B; the first mating surface 2732 also includes opposite sides A1, B1.
  • the side A1 of the first mating surface 2732 coincides with the side A of the first positioning surface 282;
  • a side B1 of a mating surface 2732 coincides with a side B of the first positioning surface 282;
  • the first positioning surface 282 exerts a uniform distribution force of Fc size, and the pressure applied by the rotating shaft 27 at the beginning of rotation is F0;
  • the first positioning surface 282 of the damping hole 281 and the first mating surface 2732 of the rotating shaft 27 are non-interference contact, and the side A1 of the first mating surface 2732 and the first positioning surface 282 The side A of may not overlap; the side B1 of the first mating surface 2732 and the side B of the first positioning surface 282 may not overlap.
  • the first positioning surface 282 of the damping hole 281 and the first mating surface 2732 of the rotating shaft 27 may be in interference contact, that is, the first positioning surface 282 is unevenly distributed with Fc.

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Abstract

一种电子装置，其包括壳体(20)及设置于所述壳体(20)上的柔性屏(30)，所述壳体(20)包括第一框体(21)、第二框体(23)、以及连接于第一框体(21)与第二框体(23)之间的铰链装置，所述铰链装置包括若干通过转轴(27)相互铰接的链节，以及阻尼件(28)，所述阻尼件(28)用于提供所述铰链在转动时的阻力，所述阻尼件(28)包括阻尼片(280)，所述阻尼片(280)上开设有具有弹性可伸缩性的孔径的至少一阻尼孔(281)，所述转轴(27)转动地插接于至少一所述阻尼孔(281)内，所述铰链为展开状态时，所述转轴(27)定位于至少一所述阻尼孔(281)内的第一位置；所述铰链为弯折状态时，所述转轴(27)定位于至少一所述阻尼孔(281)内的第二位置。一种电子装置的铰链装置，以及所述铰链装置的阻尼件。

Description

阻尼件、铰链装置及电子装置 技术领域
本申请涉及柔性屏支撑领域，尤其涉及一种支撑柔性屏的铰链装置、铰链装置的阻尼件、以及设置有所述铰链装置的电子装置。
背景技术
柔性显示屏相对于传统的显示装置而言，具有可折叠、透明、曲面、柔性和可拉伸等优点，广泛地受到消费者的青睐。折叠式显示屏一般通过铰链来实现对柔性屏的支撑及弯折，铰链上一般设置有阻尼装置，以提供铰链弯折时的阻尼力。然而，现有的铰链的阻尼装置的结构复杂，制造成本高，且辅助定位可靠性差。
发明内容
本申请提供一种结构简单、辅助定位可靠性佳的阻尼件、设置有所述阻尼件的铰链装置，以及设置有所述铰链装置的电子装置。
本申请提供的一种阻尼件，安装于铰链装置的转轴上，用于提供所述铰链在转动时的阻力，所述阻尼件包括阻尼片，所述阻尼片上开设有具有弹性可伸缩性的孔径的至少一阻尼孔，所述转轴转动地插接于至少一所述阻尼孔内，所述铰链在展开状态时，所述转轴定位于至少一所述阻尼孔内的第一位置；所述铰链在弯折状态时，所述转轴定位于至少一所述阻尼孔内的第二位置。
本申请还提供一种铰链装置，包括若干通过转轴相互铰接的链节，以及阻尼件，所述阻尼件用于提供所述铰链在转动时的阻力，所述阻尼件包括阻尼片，所述阻尼片上开设有具有弹性可伸缩性的孔径的至少一阻尼孔，所述转轴转动地插接于至少一所述阻尼孔内，所述铰链在展开状态时，所述转轴定位于至少一所述阻尼孔内的第一位置；所述铰链在弯折状态时，所述转轴定位于至少一所述阻尼孔内的第二位置。
本申请还提供一种电子装置，包括壳体及设置于所述壳体上的柔性屏，所述壳体包括第一框体、第二框体，以及连接于第一框体与第二框体之间的铰链装置，所述铰链装置包括若干通过转轴相互铰接的链节，以及阻尼件，所述阻尼件用于提供所述铰链在转动时的阻力，所述阻尼件包括阻尼片，所述阻尼片上开设有具有弹性可伸缩性的孔径的至少一阻尼孔，所述转轴转动地插接于至 少一所述阻尼孔内，所述铰链在展开状态时，所述转轴定位于至少一所述阻尼孔内的第一位置；所述铰链在弯折状态时，所述转轴定位于至少一所述阻尼孔内的第二位置。
本申请电子装置的铰链装置中的转轴能转动地插接于对应的阻尼片的阻尼孔内，在转轴定位于阻尼孔内的第一位置时，阻尼片能将所述铰链装置稳定地定位于展开状态；在所述转轴定位于阻尼孔内的第二位置时，阻尼片能将铰链装置稳定地定位于弯折状态。由于本申请的阻尼件仅为设置于转轴上的阻尼片，且能将铰链装置稳定地保持展形状态或弯折状态，因此，本申请的阻尼件的结构简单，制造成本低，且辅助定位可靠性佳。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例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发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请其中一实施例中的电子装置的立体结构示意图。
图2是图1中的电子装置去除背板后的另一视角立体结构示意图。
图3是图1中的电子装置的铰链装置的立体结构示意图。
图4是图3中的铰链装置的铰链主体的立体分解示意图。
图5是图4中的铰链主体的部分立体组装示意图。
图6是图3中的一阻尼件与两个转轴的立体分解示意图。
图7是图6中的阻尼片的放大图。
图8是图7中的阻尼片的正面示意图。
图9是图3的立体组装图。
图10是图11中的其中一阻尼件与两个转轴的结构示意图。
图11是图9中的铰链装置的弯折状态的立体示意图。
图12是图11中的其中一阻尼件与两个转轴的结构示意图。
图13a-13c是图7中的阻尼片的制造过程示意图。
图14是图7中的阻尼片的制造方法流程图。
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，显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性 劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例的描述中，需要理解的是，术语“上”、“下”“左”“右”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是暗示或指示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
请一并参阅图1至图3，图1是本申请其中一实施例中的电子装置的立体结构示意图；图2是图1中的电子装置去除背板后的另一视角立体结构示意图；图3是图1中的电子装置的铰链装置的立体结构示意图。本申请的其中一实施例中的电子装置100包括一壳体20及设置于壳体20上的一柔性屏30。壳体20包括一第一框体21、一第二框体23及连接于第一框体21与第二框体23之间的一铰链装置25。柔性屏30设置于第一框体21、第二框体23及铰链装置25上。柔性屏30设置有对应铰链装置25的一可折弯区域31，以及连接于可折弯区域31相对的两侧的两个非折弯区域33。铰链装置25用于支撑柔性屏30，铰链装置25包括铰链主体26、用于将所述铰链主体26铰接于一体的若干转轴27、安装于转轴27上的阻尼件28，以及位于两个铰链主体26相对的两端并带动铰链主体26转动的两个传动机构29。阻尼件28包括若干阻尼片280，每一阻尼片280上开设有孔径能弹性伸缩的至少一阻尼孔281(如图6所示)，这些转轴27能转动地插接于对应的阻尼片280的阻尼孔281内，在所述转轴27定位于阻尼孔281内的第一位置时，所述铰链装置25保持为展开状态，使所述柔性屏30随铰链装置25呈展开状态；在所述转轴27定位于阻尼孔281内的第二位置时，所述铰链装置25保持为弯折状态，使柔性屏30随铰链装置25呈弯折状态。
本实施例中，电子装置100例如是，但不局限于手机、平板电脑、显示器、液晶面板、OLED面板、电视、智慧手表、VR头戴显示器、车载显示器等其它任何具有显示功能的产品和部件。
本申请的电子装置100的铰链装置25中的转轴27能转动地插接于对应的阻尼片280的阻尼孔281内，在转轴27定位于阻尼孔281内的第一位置时，阻尼片280能将所述铰链装置25稳定地定位于展开状态；在所述转轴27定位于阻尼孔281内的第二位置时，阻尼片280能将铰链装置25稳定地定位于弯折状态。由于本申请的阻尼件28仅为设置于转轴27上的阻尼片280，且能将铰链装置25稳定地保持展形状态或弯折状态，因此，本申请的阻尼件28的结构简单，制造成本低，且辅助定位可靠性佳。
如图3至图5所示，图4是图3中的铰链装置的铰链主体的立体分解示意图；图5是图4中的铰链主体的部分立体组装示意图。铰链主体26位于第一 框体21与第二框体23之间。铰链主体26包括若干铰节，这些铰节通过转轴27及传动机构29连接在一起。本实施例中，这些铰节包括位于中部的第一铰节262、位于所述第一铰节262相对的两侧的两个第二铰节264，以及位于每一第二铰节264背朝第一铰节262一侧的第三铰节265。第一铰节262、第二铰节264及第三铰节265之间通过转轴27及传动机构29连接。传动机构29包括壳体291、设置于所述壳体291内的齿轮组合293，以及设置于齿轮组合293相对的两侧的两对连接肩295。传动机构29的齿轮组合293转动能带动第三铰节265相对于对应的第二铰节264转动、第二铰节264相对于第一铰节262转动。本实施例中，铰链主体26相对的两端分别设置有两个阻尼件28，铰链主体26同一端的转轴27的数量为四个。
两个第三铰节265在铰链主体26同一端均延伸出对应的第二铰节264，从而使两个第三铰节265之间于第一铰节262及第二铰节264的端部围成一安装空间267，安装空间267用于安装阻尼件28及传动机构29。阻尼件28及传动机构29安装于对应的安装空间267内，使铰链装置25的结构更紧密、元件的布局更合理、加工精度更高。
如图4所示，第一铰节262相对的两侧的中部分别向外凸设圆柱形的一连接条2621，每一连接条2621沿第一铰节262的长度方向延伸。每一连接条2621相对的两端部均轴向地开设有一连接孔2623。第一铰节262相对的两侧面于邻近端部分别设置有一收容槽2625，每一收容槽2625邻近对应的连接条2621的端面。每一收容槽2625的横截面为圆弧面，圆弧面的轴心线与对应的连接条2621的连接孔2623的轴心线重合。第一铰节262的正面开设有若干安装孔2628，这些安装孔2628用于将铰链装置25连接于柔性屏30的背面。
每一第二铰节264相对的两侧面沿其长度方向分别开设一连接槽2641，连接槽2641用于可转动地收容第一铰节262上对应的连接条2621。每一连接槽2641的横截面为圆弧面，第一铰节262的连接条2621的外表面可相对滑动地贴合于对应的连接槽2641的内表面。每一第二铰节264相对的两端部的两侧分别向外凸设有一连接条2643，每一连接条2643沿第二铰节264的长度方向延伸，每一连接条2643的外侧面为圆弧面。每一连接条2643能转动地收容于第一铰节262上对应的收容槽2625内。每一连接条2643的端部开设有连接孔2645，连接孔2645沿第二铰节264的长度方向延伸，并穿通连接条2643，连接孔2645的圆心线与连接槽2641的圆心线重合。
每一第三铰节265面朝对应的第二铰节264的一侧的中部凸设有一连接条2651，连接条2651沿第三铰节265的长度方向延伸，连接条2651的外侧面为圆弧面。连接条2651可转动地收容于对应的第二铰节264的连接槽2641内。 第三铰节265面朝对应的第二铰节264的一侧面于连接条2651相对的两端分别开设有一收容槽2655，收容槽2655用于转动地收容对应的第二铰节264的连接条2643。所述连接条2651相对的两端面沿其长度方向分别开设有连接孔，所述连接孔用于连接对应的转轴27。第三铰节265的正面于连接条2651相对的两端分别开设有若干固定槽2656，固定槽2656用于连接传动机构29的连接肩295。第三铰节265背朝连接条2651的一侧设置有连接部2658，连接部2658用于连接于第一框体21或第二框体23。
请参阅图6至图8，图6是图3中的一阻尼件与两个转轴的立体分解示意图；图7是图6中的阻尼片的放大图；图8是图7中的阻尼片的正面示意图。每一转轴27包括位于一端部的连接段271、轴向位于连接段271后端的定位段273，以及轴向位于所述定位段273后端的转轴段275。所述定位段273的外径较连接段271及转轴段275的外径大，所述定位段273的外周面上沿其长度方向设有第一配合面2732及第二配合面2734，第一配合面2732及第二配合面2734位于所述定位段273相对的两侧，第一配合面2732及第二配合面2734均平行于转轴27的轴心线方向。
每一阻尼件28包括若干弹性的阻尼片280，阻尼片280于阻尼孔281的内周面上设置有第一定位面282及第二定位面283，当转轴27定位于第一定位面281时，所述转轴27位于所述阻尼孔281内的第一位置，即铰链装置25处于展开状态下的转轴27所在的位置；当转轴27定位于第二定位面283时，所述转轴27位于阻尼孔281内的第二位置，即铰链装置25处于弯折状态下的转轴27所在的位置。每一阻尼孔281的内周面上的第一定位面282与第二定位面283之间形成夹角，具体的，第一定位面282平行于对应的转轴27的轴心线，第二定位面283与对应的转轴27的轴心线之间形成夹角。
每一转轴27的定位段273能收容于对应的阻尼孔281内，当转轴27的第一配合面2732贴合于对应的阻尼片280的第一定位面282上时，所述转轴27位于所述阻尼孔281内的第一位置，即铰链装置25处于展开状态；当转轴27的第二配合面2734贴合于对应的阻尼片280的第二定位面283上时，所述转轴27位于所述阻尼孔281内的第二位置，即铰链装置25处于弯折状态。
每一阻尼孔281内的第一定位面282上开设有第一收容槽2821，第二定位面283上开设有第二收容槽2831，当转轴27位于对应的阻尼孔281内的第一位置时，即转轴27的第一配合面2732贴合于第一定位面282上，所述转轴27的第二配合面2734的其中一侧边收容于第二收容槽2831内，此时，所述第一配合面2732完全贴合于所述第一定位面282上，即所述第一配合面2732与所述第一定位面282之间没有间隙，所述转轴27抵推所述阻尼孔281的内 壁的力量为最少值，所述阻尼孔281的内径扩张最少；当转轴27位于对应的阻尼孔281内的第二位置时，即转轴27的第二配合面2734贴合于第二定位面283上，所述转轴27的第一配合面2732的其中一侧边收容于第一收容槽2821内，此时，所述第二配合面2734完全贴合于所述第二定位面283上，即所述第二配合面2734与所述第二定位面283之间没有间隙，所述转轴27抵推所述阻尼孔281的内壁的力量为最少值，所述阻尼孔281的内径扩张最少。当转轴27的第一配合面2732的所述其中一侧边收容于对应的第一收容槽2821内或所述第二配合面2734的所述其中一侧边收容于对应的第二收容槽2831内时，所述阻尼孔281的孔径最少，所述阻尼孔281与所述转轴27之间的阻尼力最少。
本实施例中，每一阻尼片280大概呈矩形状，其包括位于阻尼片280相对的两端的两个弹性定位圈285，以及连接于两个弹性定位圈285之间的连接部287，即，两个弹性定位圈285分别位于连接部287相对的两侧。每一弹性定位圈285包括凸设于连接部287一端的第一弹性肩2850，以及凸设于连接部287相对的另一端的第二弹性肩2855。同一弹性定位圈285的第一弹性肩2850与第二弹性肩2855相对设置，且两者之间有间隔288，第一弹性肩2850与第二弹性肩2855围成阻尼孔281。
每一第一弹性肩2850及对应的第二弹性肩2855凸设于所述连接部287上的同一侧，具体的，第一弹性肩2850包括自连接部287朝第二弹性肩2855延伸的一第一延伸片2851，以及设置于第一延伸片2851的末端的一第一夹持条2853；第二弹性肩2855包括自连接部287先朝水平延伸再向第一弹性肩2850延伸的一第二延伸片2856，以及设置于第二延伸片2856的末端的一第二夹持条2858。第一弹性肩2850的第一夹持条2853与第二弹性肩2855的第二夹持条2858围成阻尼孔281，第一夹持条2853与第二夹持条2858之间有间隙288。
本实施例中，第一夹持条2853及第二夹持条2858均呈圆弧形，第一夹持条2853面朝对应的第二夹持条2858的侧面为第一圆弧面2854，所述第一圆弧面2854即为第一夹持条2853的内周面；第二夹持条2858面朝所述第一夹持条2853的侧面为第二圆弧面2857，所述第二圆弧面2857即为第二夹持条2858的内周面。同一弹性定位圈285的第一夹持条2853与第二夹持条2858的内周面相对设置，第一圆弧面2854与第二圆弧面2857围成概呈圆形的阻尼孔281。
每一弹性定位圈285的第一定位面282设置于第一夹持条2853的内周面上，第一定位面282为平行于阻尼孔281的轴心线的平面；第二定位面283 设置于第二夹持条2858的内周面上，所述第二定位面283为斜面，第二定位面283与阻尼孔281的轴心线之间有夹角。弹性定位圈285的第一收容槽2821设置于第一定位面282上，所述第一收容槽2821的横截面为圆弧面，具体的，第一收容槽2821位于第一定位面282的中部；第二收容槽2831设置于第二定位面283上，所述第二收容槽2831的槽截面为圆弧面，具体的，第二收容槽2831位于第二定位面283的中部。插接于每一弹性定位圈285的阻尼孔281内的转轴27的定位段273为圆柱杆，当所述转轴27位于对应的阻尼孔281内的第一位置时，第二配合面2734远离连接部287的侧边收容于第二收容槽2831内，且所述转轴27的外周面贴合于第二收容槽2831的圆弧面；当所述转轴27位于所述阻尼孔281内的第二位置时，第一配合面2732远离连接部287的侧边收容于第一收容槽2821内，且所述转轴27的外周面贴合于所述第一收容槽2821的圆弧面。
请一并参阅图2至图9，图9是图3的立体组装图。组装铰链装置25时，先将每一阻尼件28的若干阻尼片280层叠于一起，使每一阻尼片280的阻尼孔281与其他阻尼片280的阻尼孔281对齐，这些阻尼片280的第一定位面282位于同一平面上，第二定位面位于同一平面上。再将每一转轴27具有转轴段275的一端插入对应的阻尼件28的阻尼孔281内，直至转轴27的定位段273的外周面接触阻尼孔281的内周面，此时，每两个转轴27插接于一个阻尼件28的两个阻尼孔281内；每一传动机构29上连接有四个转轴27，即四个转轴27的连接段271分别连接于所述传动机构29的齿轮组合293上，四个转轴27并列，且传动机构29相对的两侧的连接肩295分别连接于位于最外侧的两个转轴27上，所述齿轮组合293的转动能带动转轴27及阻尼件28转动。此时，每一传动机构29、对应的四个转轴27及对应的两个阻尼件28连接于一体。
所述传动机构29可以联动，即转动其中特定的某一个元件可以带动其他的元件跟随转动，从而使得整个齿轮机构发生弯折。所述传动机构29中采用直齿条加直齿轮啮合的方式联动，所述传动机构29也可以采用斜齿轮啮合联动的方式。
将两个第二铰节264分别放置于第一铰节262相对的两侧，使第一铰节262两侧的连接条2621可转动地收容于两个第二铰节264的连接槽2641内，每一第二铰节264的连接条2643可转动地收容于第一铰节262的收容槽2625内，使连接条2643上的连接孔2645正对相应的连接孔2623。将两个第三铰节265的连接条2651分别可转动地收容于两个第二铰节264远离第一铰节262一侧的连接槽2641内，每一第二铰节264的连接条2643收容于对应的第三铰 节265的收容槽2655内，使连接条2643上的连接孔2645正对相应的连接条2651端面的连接孔。此时，铰链主体26同一端的两个第三铰节265与第一铰节262及第二铰节264的端面围成所述安装空间267。将两个传动机构29及对应的阻尼件28及转轴27分别收容于铰链主体26的两个安装空间267内，使每一转轴27的转轴段275插入对应的连接孔2645内，此时，阻尼件28位于铰链主体26与对应的传动机构29之间；再将每一传动机构29的连接肩295连接于对应的第三铰节265的固定槽2656，即，若干锁固件分别穿过连接肩295锁固于固定槽2656的连接孔内，且使两个外侧的转轴27连接于第三铰节265上。连接肩295可通过焊接等方式与转轴27的连接段271固定，或者是通过其他方式与连接段271固定，只需要确保固定件可跟随连接段271旋转即可。
将安装完成的铰链装置25置于第一框体21与第二框体23之间，即，将两个第三铰节265的连接部2658分别连接于第一框体21及第二框体23上。将柔性屏30的两个非折弯区域33的背面分别贴接于第一框体21及第二框体23上，将柔性屏30的可折弯区域31的背面设于铰链装置25的正面，使第一铰节262连接于柔性屏30的背面。此时，铰链装置25连接于柔性屏30的背面，柔性屏30的可折弯区域31可随铰链装置25的弯折而弯曲。
请一并参阅图9及图10，图10是图11中的其中一阻尼件与两个转轴的结构示意图。铰链装置25在展开状态时，第一铰节262、第二铰节264及第三铰节265通过转轴27及传动机构29连接于同一平面上。每一转轴27的定位段273收容于对应的阻尼片280的阻尼孔281内，所述阻尼孔281的第一夹持条2853及第二夹持条2858弹性地夹持所述转轴27的定位段273的外周面。转轴27的第一配合面2732完全贴合于第一夹持条2853的内周面的第一定位面282上，即所述第一配合面2732与所述第一定位面282之间没有间隙，所述转轴27的第二配合面2732远离连接部287的一侧边收容于第二夹持条2858的内周面的第二收容槽2831内，且所述转轴27于邻近所述侧边的外周面贴合于所述第二收容槽2831的内表面，从而能减少弹性定位圈285向外扩张的变形量，即止防所述第二延伸片2856变形而抵推柔性屏30，止防柔性屏30变形或损坏。此时，阻尼孔281在收容有转轴27的条件下的内径最少，弹性定位圈285挤压转轴27的压力最少，即阻尼孔281与转轴27之间的阻尼力最少，方便折弯铰链装置25；另外，每一转轴27的第一配合面2732贴合于对应的第一定位面282上，从而能使铰链装置25稳定地保持展开状态。
请一并参阅图1、图2、图11及图12，图11是图9中的铰链装置的弯折状态的立体示意图；图12是图11中的其中一阻尼件与两个转轴的结构示意图。 弯折电子装置100时，对电子装置100的第一框体21及第二框体23至少其中一个施加折弯的力，使连接于第一框体21和第二框体23上的第三铰节265朝相互邻近的方向转动，连接于第三铰节265上的转轴27相对于对应的第二铰节264转动，使第三铰节265相对于对应的第二铰节264朝远离柔性屏30的一侧弯折；连接于第三铰节265上的转轴27随第三铰节265相对于相应的第二铰节264转动；所述齿轮组合293转动带动第二铰节264及阻尼件28相对于第一铰节262转动，使第二铰节264相对于第一铰节262朝远离柔性屏30的一侧弯折，直至第一框体21与第二框体23的背面贴接。在铰链装置25的弯折过程中，每一转轴27相对于相应的阻尼孔281转动，具体的，转轴27的第一配合面2732脱离与对应的第一定位面282的贴合，转轴27的第二配合面2734远离连接部287的侧边脱离对应的第二收容槽2831，所述转轴27的外周面贴合于第二收容槽2831的圆弧面上。转轴27的定位段273在对应的阻尼孔281内转动，定位段273的外周面抵推第一夹持条2853及第二夹持条2858的内周面，使弹性定位圈285的第一弹性肩2850及第二弹性肩2855弹性变形而相互远离，使阻尼孔281的孔径变大，弹性定位圈285的第一夹持条2853及第二夹持条2858相互远离，以使阻尼件28的弹性定位圈285给转轴27的定位段273的阻尼力增大；直至转轴27的第二配合面2734贴合于第二定位面283，第一弹性肩2850及第二弹性肩2855弹性复位而挤压转轴27的定位段273的外周面，阻尼孔281的孔径复位至初始尺寸。此时，转轴27的第一配合面2732的远离连接部287的一侧边收容于第一夹持条2853的内周面的第一收容槽2821内，所述转轴27的外周面贴合于第一收容槽2821的圆弧面上，阻尼件28的每一弹性定位圈285的第二夹持条2858的弹性变形较少，从而第二夹持条2858的外表面不会抵推柔性屏30，能防止所述柔性屏30变形或损坏。铰链装置25完成弯折，柔性屏30随铰链装置25实现弯折。第一铰节262的正面、两个第二铰节264的正面及两个第三铰节265的正面共一个圆弧面，以方便贴合柔性屏30，且阻尼件28能使铰链装置25稳定地保持弯折状态。
当需要展平电子装置100时，向外拉开第一框体21及第二框体23，使连接于第一框体21和第二框体23上的第三铰节265朝相互远离的方向转动，连接于第三铰节265上的转轴27相对于对应的第二铰节264转动，使第三铰节265相对于对应的第二铰节264朝向柔性屏30的一侧转动；所述齿轮组合293的转动能带动第二铰节264及阻尼件28相对于第一铰节262转动，使第二铰节264相对于第一铰节262朝向柔性屏30的一侧弯折，直至铰链装置25展平。在铰链装置的展平过程中，每一转轴27在相应的阻尼孔281转动，具体的，转轴27的第二配合面2734脱离与对应的第二定位面283的贴合，转轴27的 第一配合面2732远离连接部287的侧边脱离对应的第一收容槽2821，转轴27的定位段273在对应的阻尼孔281回转，定位段273的外周面抵推第一夹持条2853及第二夹持条2858的内周面，使弹性定位圈285的第一弹性肩2850及第二弹性肩2855弹性变形而相互远离使阻尼孔281的孔径变大，弹性定位圈285的第一夹持条2853及第二夹持条2858相互远离，以使阻尼件28的弹性定位圈285给转轴27的定位段273的阻尼力增大，直至转轴27的第一配合面2732贴合于第一定位面282，第一弹性肩2850及第二弹性肩2855弹性复位而挤压转轴27的定位段273的外周面，阻尼孔281的孔径复位至初始尺寸。此时，转轴27的第二配合面2734的远离连接部287的一侧边收容于第二夹持条2858的内周面的第二收容槽2831内，且所述转轴27的外周面贴合于第二收容槽2831的圆弧面上，因此，阻尼件28的每一弹性定位圈285的第一弹性肩2850及对应的第二弹性肩2855的弹性变形少，从而第二弹性肩2855不会抵推柔性屏30，能防止所述柔性屏30变形或损坏，使铰链装置25完成展平，柔性屏30随铰链装置25实现展平，且阻尼件28能使铰链装置25稳定地保持展平状态。
在铰链装置25从展平状态至完全弯折状态之间的任一弯折状态，由于阻尼件28与转轴27之间有阻尼力，因此，在没有外力的作用下，铰链装置25能在上述任一弯折状态下进行定位，即，阻尼件28能定位铰链装置25处于任一弯折位置。
本申请阻尼件28的每一阻尼片280是基于逆变形的优化设计方案得出，以第一定位面282的设计为例，具体的设计过程如下：
1.提供一个阻尼片及转轴，所述阻尼片的结构与本申请的阻尼片280的结构相似，即，所述阻尼片包括间隔相对的第一夹持条2853及第二夹持条2858，所述第一夹持条2853与第二夹持条2858围成阻尼孔281，所述第一夹持条2853的内周面上设置有第一定位面282，所述第二夹持条2858的内周面上设置有第二定位面283，所述转轴27上设置有能与第一定位面282贴合的第一配合面2732，及与第二定位面283贴合的第二配合面2734，不同之处在于，所述阻尼片的阻尼孔的内周面上的第一定位面及第二定位面上没有设置第一收容槽及第二收容槽；
2.设计出阻尼孔281的第一定位面282与转轴27的第一配合面2732的贴合为非过盈接触，第一定位面282包括相对的两侧边A、B；第一配合面2732也包括相对的两侧边A1、B1，当第一配合面2732贴合于第一定位面282时，第一配合面2732的侧边A1与第一定位面282的侧边A重合；第一配合面2732的侧边B1与第一定位面282的侧边B重合；
3.定义所述阻尼片的定位力矩T，测量出阻尼片的第一定位面282的宽度W，则通过公式F0＝2T/W能计算出转轴27开始转动时A处的压力。当阻尼孔281与转轴27均匀接触，即转轴27的第一配合面2732与阻尼孔281的第一定位面282贴合时，所述第一配合面2732与第一定位面282之间的接触力等效分布，即均匀分布，所述接触力为Fc＝F0/W；
4.建立有限元形状优化设计模型，第一定位面282施加Fc大小的均布力，转轴27在刚开始转动时施加在A处的压力为F0；
5.定义设计变量：A处坐标x分量Ax，A处坐标y分量Ay，B处坐标x分量Bx，B处坐标y分量By(形状优化变量)；
6.定义输出响应：A处位移x分量dAx，A处位移y分量dAy，B处位移x分量dBx，B处点位移x分量dBy；
7.基于最小二乘优化方法建立如下函数关系：
F(Ax,Ay,Bx,By)＝(Ax+dAx-Ax0) 2+(Ay+dAy-Ay0) 2+(Bx+dBx-Bx0) 2+(By+dBy-By0) 2
8.建立目标函数：minF(Ax、Ay，Bx，By)；
9.计算求解，得到优化后的Ax、Ay、Bx、By值，也就是逆变形优化后的值；
10.采用上述同样的方法计算第二定位面283的相对的两侧边C、D两处的逆变形优化后的坐标值；
11.根据上述第9、10条得出的值建立3D模型，施加上述第4条中的载荷进行有限元仿真，将变形图输出为3D图，则AB面(第一定位面282)应与A’B’面(第一配合面2732)重合，但CD面(第二定位面283)与C’D’面(第二配合面2734)干涉，通过在CD面(第二定位面283)上进行布尔减，去掉干涉材料即可；
通过采用上述相同的方法，在转轴27的第二配合面2734贴合于阻尼孔281的第二定位面283时，得出第一定位面282与第一配合面2732干涉，通过在第一定位面282上进行布尔减，去掉干涉材料即可，最终得出本申请的阻尼片280的结构。
通过采用计算机计算复杂的结构力学模型，可获得精确的设计参数；通过逆变形优化的设计方法，解决了定位面与配合面贴合不紧密的问题；避免了阻尼孔的内周面与转轴的外周面干涉问题；通过逆变形设计出的阻尼片，能更精确满足定位力矩要求值；解决了因阻尼片变形导致第一夹持条2853和第二夹持条2858拱起而对柔性屏30的支撑造成影响的问题。
在其他实施例中，设计出阻尼孔281的第一定位面282与转轴27的第一 配合面2732的贴合为非过盈接触，第一配合面2732的侧边A1与第一定位面282的侧边A可以不重合；第一配合面2732的侧边B1与第一定位面282的侧边B可以不重合。
在其他实施例中，阻尼孔281的第一定位面282与转轴27的第一配合面2732的贴合也可以过盈接触，即第一定位面282施加Fc不均布。
在其他实施例中，基于最小二乘优化方法还可以采用如下计算表达式：F(Ax,Ay,Bx,By)＝(Ax+dAx-Ax0) 2+(Bx+dBx-Bx0) 2+(Ay+dAy-By-dBy) 2
或F(Ax,Ay,Bx,By)＝(Ax+dAx-Bx-dBx+W) 2+(Ay+dAy-By-dBy) 2。
以上是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围。

Claims (18)

  1. 一种阻尼件，安装于铰链装置的转轴上，用于提供所述铰链在转动时的阻力，其特征在于，所述阻尼件包括阻尼片，所述阻尼片上开设有具有弹性可伸缩性的孔径的至少一阻尼孔，所述转轴转动地插接于至少一所述阻尼孔内，所述铰链为展开状态时，所述转轴定位于至少一所述阻尼孔内的第一位置；所述铰链为弯折状态时，所述转轴定位于至少一所述阻尼孔内的第二位置。
  2. 如权利要求1所述的阻尼件，其特征在于，所述阻尼片于至少一所述阻尼孔的内周面上设置有第一定位面及第二定位面，所述第一位置包括第一定位面，所述第二位置包括第二定位面。
  3. 如权利要求2所述的阻尼件，其特征在于，所述转轴上设置有第一配合面及第二配合面，所述转轴的第一配合面贴合于所述阻尼片的第一定位面上时，所述转轴位于所述阻尼孔内的第一位置；所述转轴的第二配合面贴合于所述阻尼片的第二定位面上时，所述转轴位于所述阻尼孔内的第二位置。
  4. 如权利要求3所述的阻尼件，其特征在于，所述第一定位面与所述第二定位面之间形成夹角。
  5. 如权利要求3所述的阻尼件，其特征在于，所述第一定位面上开设有第一收容槽，所述第二定位面上开设有第二收容槽，所述转轴位于所述阻尼孔内的第一位置时，所述第二配合面的其中一侧边收容于所述第二收容槽内，所述第一配合面与所述第一定位面完全贴合；所述转轴位于所述阻尼孔内的第二位置时，所述第一配合面的其中一侧边收容于所述第一收容槽内，所述第二配合面与所述第二定位面完全贴合。
  6. 如权利要求5所述的阻尼件，其特征在于，所述转轴的第一配合面完全贴合于第一定位面且第二配合面的其中一侧边收容于所述第二收容槽内，或者所述转轴的第二配合面完全贴合于第二定位面且第一配合面的其中一侧边收容于所述第一收容槽内时，所述阻尼孔与所述转轴之间的阻尼力最少。
  7. 如权利要求5所述的阻尼件，其特征在于，所述铰链在由展平状态弯折至弯折状态的过程中，所述转轴在所述阻尼孔内转动，所述转轴的第一配合面及所述第一定位面分离，所述第二配合面的所述其中一侧边离开所述第二定位面上的第二收容槽，所述阻尼孔的孔径变大，使所述阻尼孔与所述转轴之间的阻尼力增大。
  8. 如权利要求5所述的阻尼件，其特征在于，所述铰链在由弯折状态展开至展平状态过程中，所述转轴在所述阻尼孔内转动，所述转轴的第二配合面 与所述第二定位面分离，所述第一配合面上的所述其中一侧边离开所述第一定位面上的第一收容槽，所述阻尼孔的孔径变大，使所述阻尼孔与所述转轴之间的阻尼力增大。
  9. 如权利要求5所述的阻尼件，其特征在于，所述第一收容槽及第二收容槽的横截面均为圆弧面，所述转轴为圆柱杆，所述转轴位于所述阻尼孔内的第一位置时，所述转轴的外周面贴合于所述第二收容槽的圆弧面；所述转轴位于所述阻尼孔内的第二位置时，所述转轴的外周面贴合于所述第一收容槽的圆弧面。
  10. 如权利要求2所述的阻尼件，其特征在于，所述阻尼片包括至少一弹性定位圈，至少一所述弹性定位圈包括第一弹性肩及相对间隔设置的第二弹性肩，所述第一弹性肩与所述第二弹性肩围成所述阻尼孔。
  11. 如权利要求10所述的阻尼件，其特征在于，所述阻尼片还包括连接部，所述弹性定位圈位于所述连接部的一侧，所述第一弹性肩及所述第二弹性肩凸设于所述连接部上。
  12. 如权利要求11所述的阻尼件，其特征在于，所述第一弹性肩包括自所述连接部朝第二弹性肩延伸的第一延伸片，以及设置于所述第一延伸片末端的第一夹持条，所述第二弹性肩包括自所述连接部朝第一弹性肩延伸的第二延伸片，以及设置于所述第二延伸片末端的第二夹持条，所述第一夹持条与所述第二夹持条围成所述阻尼孔。
  13. 如权利要求12所述的阻尼件，其特征在于，所述第一夹持条面朝所述第二夹持条的侧面为第一圆弧面，所述第二夹持条面朝所述第一夹持条的侧面为对应所述第一圆弧面的第二圆弧面，所述第一圆弧面与所述第二圆弧面围成所述阻尼孔。
  14. 如权利要求13所述的阻尼件，其特征在于，所述第一定位面为平面，所述第一定位面设置于所述第一圆弧面上，所述第一定位面平行于所述转轴的轴心线，所述第二定位面为斜面，所述第二定位面设置于所述第二圆弧面上，第二定位面与所述转轴的轴心线之间有夹角。
  15. 如权利要求13所述的阻尼件，其特征在于，所述第一定位面的中部开设有第一收容槽，所述第二定位面的中部开设有第二收容槽，所述第一收容槽及第二收容槽用于收容转轴的外周面。
  16. 如权利要求10所述的阻尼件，其特征在于，所述阻尼片相对的两端设置有相对的两个所述弹性定位圈，以及连接于两个所述弹性定位圈之间的连接部。
  17. 一种铰链装置，包括若干通过转轴相互铰接的链节，其特征在于，所 述铰链装置还包括根据权利要求1-16中任一项中所述阻尼件，所述转轴能转动地插接于对应的阻尼件的阻尼孔内。
  18. 一种电子装置，包括壳体及设置于所述壳体上的柔性屏，其特征在于，所述壳体包括第一框体、第二框体及根据权利要求17中所述铰链，所述铰链连接于所述第一框体与第二框体之间。
PCT/CN2018/121714 2018-12-18 2018-12-18 阻尼件、铰链装置及电子装置 WO2020124352A1 (zh)

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