WO2025112623A1 - 一种转轴机构、支撑装置以及折叠屏终端 - Google Patents

一种转轴机构、支撑装置以及折叠屏终端 Download PDF

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Publication number
WO2025112623A1
WO2025112623A1 PCT/CN2024/110165 CN2024110165W WO2025112623A1 WO 2025112623 A1 WO2025112623 A1 WO 2025112623A1 CN 2024110165 W CN2024110165 W CN 2024110165W WO 2025112623 A1 WO2025112623 A1 WO 2025112623A1
Authority
WO
WIPO (PCT)
Prior art keywords
swing arm
sliding
door panel
sliding member
rotating shaft
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/CN2024/110165
Other languages
English (en)
French (fr)
Inventor
吴艳玲
陈瑞豪
董绍洪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honor Device Co Ltd
Original Assignee
Honor Device Co Ltd
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 Honor Device Co Ltd filed Critical Honor Device Co Ltd
Publication of WO2025112623A1 publication Critical patent/WO2025112623A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/10—Arrangements for locking
    • 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
    • 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
    • G09F9/301—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 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • 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
    • H05K5/02—Details
    • 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
    • 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
    • F16C2370/00—Apparatus relating to physics, e.g. instruments
    • 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
    • F16C2380/00—Electrical apparatus

Definitions

  • the present application relates to the technical field of electronic equipment, and in particular to a hinge mechanism, a supporting device and a folding screen terminal.
  • Folding screen terminals can realize large screen display when unfolded, and can reduce volume and be easy to carry when folded. Therefore, they are favored by more and more users.
  • the embodiments of the present application provide a hinge mechanism, a supporting device and a folding screen terminal, which are used to solve the problem that the setting space of the hinge mechanism of the folding screen terminal is reduced, resulting in insufficient damping force generated by the hinge mechanism, reduced rotation feel, and affecting user experience.
  • a rotating shaft mechanism which includes a center beam, a door panel, a swing arm, a damping assembly and an elastic member.
  • the door panel can rotate relative to the center beam.
  • the swing arm is arranged between the door panel and the center beam, the first end of the swing arm is rotationally connected to the center beam, and the second end of the swing arm is slidably connected to the door panel; in the process of the swing arm driving the door panel to rotate relative to the center beam, the swing arm and the door panel slide relative to each other, and the rotation axis of the swing arm and the sliding direction of the swing arm are perpendicular to each other.
  • the damping assembly is arranged between the swing arm and the door panel, and the damping assembly includes a cam structure, a sliding member and an elastic member.
  • the cam structure can push the sliding member to slide along the rotation axis of the swing arm to compress the elastic member and generate a damping force. That is, the compression direction of the elastic member is parallel to the rotation axis of the swing arm.
  • the pivot mechanism provided in the first aspect of the present application sets the damping component between the door panel and the swing arm, so that no elastic force is applied to the middle beam, thereby avoiding deformation of the middle beam, which is beneficial to ensuring the flatness of the middle beam.
  • the cam structure pushes the sliding member to slide, and the sliding member can compress the elastic member in a direction parallel to the rotation axis of the swing arm to generate a damping force.
  • the elastic member can be set in a direction parallel to the rotation axis of the swing arm, so that the length of the elastic member can be guaranteed, so that the elastic member can generate sufficient elastic force (i.e., damping force), thereby ensuring the rotation feel of the terminal device, which is beneficial to improving the user experience.
  • the sliding member is slidably disposed on the swing arm, the sliding direction of the sliding member relative to the swing arm is parallel to the rotation axis of the swing arm, and the cam structure is disposed between the door panel and the sliding member.
  • the elastic member can be compressed during the sliding process of the sliding member relative to the swing arm, so that sufficient damping force can be generated during the rotation process of the swing arm and the door panel relative to the center beam.
  • the cam structure includes a boss and a roller, one of the boss and the roller is arranged on the door panel, and the other of the boss and the roller is arranged on the sliding member; during the relative sliding of the swing arm and the door panel, the boss and the roller abut against each other and move relative to each other in a direction parallel to the rotation axis of the swing arm, so that the sliding member slides in a direction parallel to the rotation axis of the swing arm.
  • the boss can apply a component force parallel to the rotation axis of the swing arm to the roller, so that the sliding member can slide in this direction to compress the elastic member.
  • the roller is rotatably connected to the sliding member or the door panel, and the rotation axis of the roller is perpendicular to the sliding direction of the sliding member, and the rotation axis of the roller is perpendicular to the sliding direction of the swing arm.
  • the roller can roll along the surface of the boss to reduce friction, which is beneficial to reducing wear between the roller and the boss and can reduce attenuation of the damping force.
  • the roller can be arranged on the sliding member, and the above-mentioned damping assembly can also include a rotating shaft, which is fixed on the sliding member, the axis of the rotating shaft is perpendicular to the sliding direction of the swing arm, and the axis of the rotating shaft is perpendicular to the sliding direction of the sliding member, and the roller is sleeved on the rotating shaft, so as to realize the rotation connection of the roller to the sliding member.
  • both side walls on the boss distributed along the sliding direction of the swing arm form guide slopes, and during the relative sliding of the door panel and the swing arm, the roller slides along the guide slopes to make the sliding member slide in a direction parallel to the rotation axis of the swing arm.
  • a receiving groove is provided on the swing arm, the sliding member and the elastic member are both provided in the receiving groove, and the sliding member and the elastic member are distributed along a direction parallel to the rotation axis of the swing arm.
  • two sliding members are provided, and the elastic member is provided between the two sliding members, and a cam structure is provided between each sliding member and the door panel; during the relative sliding of the swing arm and the door panel, the two sliding members move in opposite directions. In this way, the two sliding members can both compress the elastic member, which is conducive to further improving the damping force.
  • the shaft mechanism further includes a cover plate, which is disposed on the swing arm, and the sliding member and the elastic member are both disposed between the bottom surface of the receiving groove and the cover plate.
  • the cover plate can effectively protect the elastic member and the sliding member, and effectively limit the position, which is conducive to improving the reliability of the overall structure.
  • a notch is provided on the side wall of the receiving groove, and the sliding member contacts the cam structure through the notch. Under this structure, the boss and the roller can abut against each other at the notch, which is conducive to further reducing the thickness.
  • the elastic member is a spring
  • the axis of the spring is parallel to the rotation axis of the swing arm.
  • the spring is a conventional spring
  • the cross section of its helical line can be circular, square, polygonal or other shapes.
  • a plurality of springs are provided, the plurality of springs are distributed along the sliding direction of the swing arm, and the axes of the plurality of springs are parallel to each other. Under this structure, the required damping force can be adjusted by controlling the number of springs.
  • the damping assembly further includes a limiting shaft, the spring is sleeved on the limiting shaft, and the limiting shaft is fixed relative to the sliding member.
  • the limiting shaft can limit the compression direction of the spring to reduce the risk of bending when the spring is compressed, which is conducive to improving the reliability of the overall structure.
  • the elastic member is a special-shaped spring, and the compression of the special-shaped spring The direction is parallel to the rotation axis of the swing arm.
  • special-shaped springs with different structures or shapes can be selected according to actual design requirements, which is conducive to increasing the selectable range of elastic parts.
  • the special-shaped spring includes a leaf spring, the plane where the surface of the leaf spring is located is parallel to the rotation axis and sliding direction of the swing arm, and a plurality of hollow structures are provided on the leaf spring, and at least part of the region of the plurality of hollow structures is distributed along a direction parallel to the rotation axis of the swing arm.
  • the elastic force of the leaf spring can be adjusted according to the spacing of the hollow structures, and therefore, the thickness of the leaf spring has little effect on its own elastic force, that is, the thickness of the leaf spring can be reduced, which is more conducive to the thinning of the folding leaf terminal.
  • a sliding groove is provided on the door panel, the second end of the swing arm extends into the sliding groove, and the cam structure is arranged between the side wall of the sliding groove and the sliding member. Under this structure, it is possible to avoid the formation of a protruding structure on the surface of the door panel, thereby being more conducive to ensuring the thinness of the terminal device.
  • the door panel includes a panel body and a connecting block, the panel body is connected to the connecting block, and the slide groove is provided on the connecting block.
  • the panel body can be used to be fixedly connected to a structural member such as a housing by connecting the connecting block to the swing arm.
  • the connecting block On the one hand, the supporting strength between the swing arm and the door panel can be ensured by the connecting block, and on the other hand, it is helpful to reduce the overall weight of the door panel.
  • a supporting device which includes a first shell, a second shell and a pivot mechanism as described in any of the above technical solutions, door panels are provided on both sides of the center beam of the pivot mechanism, and the first shell and the second shell are fixedly connected to the door panels on both sides of the center beam respectively.
  • the supporting device provided in the second aspect of the present application because it includes the rotating shaft mechanism described in any of the above technical solutions, can solve the same technical problems and achieve the same technical effects.
  • a folding screen terminal which includes a folding screen and a supporting device.
  • the folding screen includes a first part, a second part, and a third part, and the third part is located between the first part and the second part.
  • the supporting device is the supporting device described in the above technical solution, the first part of the folding screen is fixed to the first shell, the second part of the folding screen is fixed to the second shell, and the third part of the folding screen is arranged on the rotating shaft mechanism.
  • the folding screen terminal provided in the third aspect of the present application because it includes the supporting device described in the above technical solution, can solve the same technical problems and achieve the same technical effects.
  • FIG1 is a structural diagram of a foldable screen terminal provided in an embodiment of the present application.
  • FIG2 is a front view of a folding screen terminal provided in an embodiment of the present application.
  • FIG3 is a front view of a folding screen terminal (in a folded state) provided in an embodiment of the present application
  • FIG4 is a structural diagram of a rotating shaft mechanism provided by the related art
  • Fig. 5 is a cross-sectional view taken along line A-A of Fig. 4;
  • FIG6 is a structural diagram of a rotating shaft mechanism provided in an embodiment of the present application.
  • FIG7 is an exploded view of a door panel provided in an embodiment of the present application.
  • FIG8 is an exploded view of the rotating shaft mechanism provided in FIG6 ;
  • FIG9 is an assembly diagram of the rotating shaft mechanism provided in FIG6 ;
  • FIG10 is a structural diagram of another rotating shaft mechanism provided in an embodiment of the present application.
  • FIG11 is a structural diagram of another rotating shaft mechanism provided in an embodiment of the present application.
  • FIG12 is an exploded view of a roller and a sliding member provided in an embodiment of the present application.
  • FIG13 is an enlarged view of the structure of region B of FIG9 ;
  • FIG14 is a structural diagram of a rotating shaft mechanism provided in an embodiment of the present application in an expanded position
  • FIG15 is a structural diagram of a rotating shaft mechanism provided in an embodiment of the present application in a state between an unfolded position and a folded position;
  • FIG16 is a three-dimensional structural diagram of FIG15
  • FIG17 is a structural diagram of a rotating shaft mechanism provided in an embodiment of the present application in a folded position
  • FIG18 is a three-dimensional structural diagram of FIG17.
  • FIG19 is a structural diagram of another rotating shaft mechanism provided in an embodiment of the present application.
  • FIG20 is an exploded view of the shaft mechanism provided in FIG19;
  • FIG21 is a structural diagram of a spring provided in an embodiment of the present application.
  • FIG22 is a perspective view of FIG21
  • FIG23 is a structural diagram of another spring provided in an embodiment of the present application.
  • FIG24 is a perspective view of FIG23
  • FIG25 is a structural diagram of a leaf spring provided in an embodiment of the present application.
  • FIG26 is a structural diagram of another rotating shaft mechanism provided in an embodiment of the present application (the elastic member is a leaf spring provided in FIG25 );
  • FIG27 is a structural diagram of another leaf spring provided in an embodiment of the present application.
  • FIG28 is a structural diagram of another leaf spring provided in an embodiment of the present application.
  • FIG29 is a structural diagram of another leaf spring provided in an embodiment of the present application.
  • FIG30 is a structural diagram of another leaf spring provided in an embodiment of the present application.
  • FIG31 is a structural diagram of another leaf spring provided in an embodiment of the present application.
  • FIG32 is a structural diagram of another leaf spring provided in an embodiment of the present application.
  • FIG33 is a structural diagram of another leaf spring provided in an embodiment of the present application.
  • FIG. 34 is a structural diagram of another leaf spring provided in an embodiment of the present application.
  • Figure numerals 01-folding screen terminal; 10-folding screen; 11-first part; 12-second part; 13-third part; 20-support device; 21-first shell; 21a-first fitting surface; 22-second shell; 22a-second fitting surface; 23-rotating shaft mechanism; 23a-third fitting surface; 100-middle beam; 200-door panel; 210-panel body; 220-connecting block; 221-slide groove; 300-swing arm; 310-accommodating groove; 320-notch; 400-damping assembly; 401-cam portion; 402-support Bracket; 403-rolling part; 404-elastic element; 410-cam structure; 411-boss; 411a-guide slope; 411b-first guide slope; 411c-second guide slope; 411d-support surface; 412-roller; 420-sliding member; 430-elastic member; 431 spring; 432-leaf spring; 432a-hollow structure; 432b-sub-area; 432c
  • first”, “second”, etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.
  • a feature defined as “first”, “second”, etc. may explicitly or implicitly include one or more of the features.
  • connection should be understood in a broad sense.
  • connection can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.
  • the embodiment of the present application provides a folding screen terminal.
  • the folding screen terminal may be a type of electronic device with a folding screen, for example, a folding screen mobile phone.
  • the folding screen mobile phone may be a mobile phone with an external folding display screen, or a mobile phone with an internal folding display screen.
  • the following examples are all taken as an example of a mobile phone with an external folding display screen as an example.
  • Figure 1 is a structural diagram of the folding screen terminal 01 provided in an embodiment of the present application
  • Figure 2 is a front view of the folding screen terminal 01 provided in an embodiment of the present application.
  • the folding screen terminal 01 may include a folding screen 10 and a supporting device 20.
  • an XYZ coordinate system is established, and the width direction of the folding screen terminal 01 is defined as the X-axis direction, the length direction of the folding screen terminal 01 is defined as the Y-axis direction, and the thickness direction of the folding screen terminal 01 is defined as the Z-axis direction. It is understandable that the coordinate system of the electronic device can be flexibly set according to actual needs, and this application only gives an example, which cannot be considered as a special limitation of this application.
  • FIG. 1 and FIG. 2 only schematically illustrate some components included in the electronic device, and the actual shape, actual size, actual position and actual structure of these components are not limited by FIG. 1 and FIG. 2 .
  • the above-mentioned folding screen 10 is used to display images, videos, etc.
  • the folding screen 10 includes a first part 11, a second part 12 and a third part 13, and the third part 13 is located between the first part 11 and the second part 12.
  • the third part 13 is bent, and the first part 11 and the second part 12 are arranged opposite to each other.
  • At least the third part 13 of the folding screen 10 is made of a flexible material, and the first part 11 and the second part 12 can be made of a flexible material, or a rigid material, or partially made of a flexible material and partially made of a rigid material. Therefore, this application does not make any special limitation to this.
  • the above-mentioned folding screen 10 can be an organic light-emitting diode (OLED) display screen, an active matrix organic light-emitting diode or an active matrix organic light-emitting diode (AMOLED) display screen, a mini light-emitting diode (mini organic light-emitting diode) display screen, a micro light-emitting diode (micro organic light-emitting diode) display screen, a micro organic light-emitting diode (micro organic light-emitting diode) display screen, a quantum dot light-emitting diode (QLED) display screen, a liquid crystal display (LCD), and the like.
  • OLED organic light-emitting diode
  • AMOLED active matrix organic light-emitting diode
  • mini light-emitting diode mini organic light-emitting diode
  • micro light-emitting diode micro organic light-emitting diode
  • the above-mentioned support device 20 is used to support the folding screen 10.
  • the support device 20 may include a first shell 21, a second shell 22 and a hinge mechanism 23, and the hinge mechanism 23 is connected between the first shell 21 and the second shell 22.
  • the first shell 21 has a first fitting surface 21a, and the first part 11 of the folding screen 10 is supported and fitted on the first fitting surface 21a.
  • the second shell 22 has a second fitting surface 22a, and the second part 12 of the folding screen 10 is supported and fitted on the second fitting surface 22a.
  • the hinge mechanism 23 has a third fitting surface 23a, and the third part 13 of the folding screen 10 is supported and fitted on the third fitting surface 23a.
  • the first shell 21 and the second shell 22 are rotatably connected by the hinge mechanism 23, so that the folding screen terminal 01 can rotate between the unfolded state and the folded state.
  • the folding screen terminal 01 When the folding screen terminal 01 is in the unfolded state, the first laminating surface 21a, the second laminating surface 22a and the third laminating surface 23a are in the same plane, so that the folding screen 10 is fully unfolded and the flatness of the folding screen 10 can be ensured. In this state, a large screen display can be achieved, which can bring a better user experience. For example, When a user uses the folding screen terminal 01 to watch a movie, the folding screen terminal 01 can be unfolded and used to watch on a large screen, thereby obtaining a better viewing experience.
  • different usage states of the folding screen terminal 01 can be suitable for different application scenarios, and users can freely choose the usage state of the folding screen terminal 01 according to the specific application scenario, which is conducive to enabling users to obtain a better usage experience.
  • the above-mentioned hinge mechanism 23 is used to drive the first shell 21 and the second shell 22 to rotate between the unfolded position and the folded position, so that the folding screen terminal 01 can rotate between the unfolded state and the folded state.
  • Figure 4 is a structural diagram of the hinge mechanism 23 provided by the related art
  • Figure 5 is an A-A cross-sectional view of Figure 4.
  • the rotating shaft mechanism 23 includes a center beam 100, a door panel 200, and a swing arm 300.
  • the door panels 200 are arranged on both sides of the center beam 100 along its length direction (i.e., the Y-axis direction mentioned above), and a swing arm 300 is arranged between the door panel 200 and the center beam 100.
  • the first end of the swing arm 300 is rotatably connected to the center beam 100, and the second end of the swing arm 300 is slidably connected to the door panel 200.
  • the plurality of swing arms 300 are spaced apart and distributed along the length direction of the center beam 100.
  • the swing arm 300 drives the door panel 200 to rotate relative to the center beam 100
  • the swing arm 300 and the door panel 200 can slide relative to each other, and the rotation axis (i.e., the Y-axis direction) of the swing arm 300 and the sliding direction (i.e., the X-axis direction) of the swing arm 300 are perpendicular to each other.
  • the first shell 21 and the second shell 22 shown in Figures 1 and 2 are respectively located on both sides of the center beam 100 and are fixedly connected to the adjacent door panel 200, so that the first shell 21 and the second shell 22 are driven to rotate between the unfolded position and the folded position through the door panel 200.
  • a damping component 400 may be further provided in the rotating shaft mechanism 23 , and the damping component 400 is provided between the swing arm 300 and the door panel 200 .
  • the damping assembly 400 may include a cam portion 401 formed at an edge region (edge region extending along the Y-axis direction) of the center beam 100, a support frame 402 slidably connected to the swing arm 300, a rolling portion 403 rotatably connected to the support frame 402, and an elastic element 404 (e.g., a compression spring) abutting between the support frame 402 and the swing arm 300.
  • the support frame 402 can rotate synchronously with the swing arm 300, and the rolling portion 403 can abut against the cam portion 401.
  • the rolling portion 403 In the process of synchronous rotation of the support frame 402 and the swing arm 300, the rolling portion 403 abuts against the cam portion 401 and rolls along the surface of the cam portion 401. In the process of rolling the rolling portion 403 along the surface of the cam portion 401, the rolling portion 403 can push the support frame 402 and the swing arm 300 to slide relative to each other and squeeze the elastic element 404.
  • the rolling portion 403 abuts against the cam portion 401 and rolls along the surface of the cam portion 401, so that the support frame 402 slides relative to the swing arm 300 and compresses the elastic element 404 to generate an elastic force.
  • the reaction force is added so that a damping force is formed between the rolling part 403 and the cam part 401.
  • the size of the folding screen terminal 01 is getting smaller and smaller, and the size of the hinge mechanism 23 is also constantly getting thinner and narrower (i.e., the size along the Z-axis and X-axis directions is reduced), so that the setting space of the above-mentioned damping component 400 is limited.
  • the elastic element 404 Since the elastic element 404 is arranged along the X-axis direction, when the elastic element 404 is compressed along the X-direction, a damping force (i.e., elastic force) can be generated.
  • a damping force i.e., elastic force
  • the width dimension of the hinge mechanism 23 is reduced, the length dimension of the elastic element 404 (the dimension along the compression direction of the elastic member 430, i.e., the X-direction) will be reduced, which will lead to a decrease in the damping force that the elastic member 430 can provide. Therefore, it is difficult for the folding screen terminal 01 to achieve a good rotation feel during the rotation process.
  • the rolling portion 403 abuts against the cam portion 401 in the edge area of the middle beam 100, which can easily cause the middle beam 100 to deform, resulting in poor flatness and affecting the user experience.
  • the embodiment of the present application provides another hinge mechanism 23, which can be used in the above folding screen terminal 01.
  • Figure 6 is a structural diagram of a hinge mechanism 23 provided in the embodiment of the present application
  • Figure 7 is an exploded diagram of a door panel 200 provided in the embodiment of the present application.
  • the rotating shaft mechanism 23 may include the above-mentioned center beam 100, door panel 200, swing arm 300 and damping assembly 400.
  • Door panels 200 are provided on both sides of the center beam 100 along the length direction, and the door panels 200 on both sides of the center beam 100 are fixedly connected to the first shell 21 and the second shell 22 respectively.
  • the swing arm 300 is provided between the center beam 100 and the door panel 200, and the first end of the swing arm 300 is rotatably connected to the center beam 100, and the second end of the swing arm 300 is slidably connected to the door panel 200, and the rotation axis (i.e., the Y-axis direction) of the swing arm 300 and the sliding direction (i.e., the X-axis direction) of the swing arm 300 are perpendicular to each other.
  • the door panel 200 may be provided with a slide groove 221 extending along the X-axis direction, and the second end of the swing arm 300 extends into the slide groove 221 on the door panel 200 to achieve a sliding connection between the swing arm 300 and the door panel 200.
  • a slide groove 221 extending along the X-axis direction
  • the second end of the swing arm 300 extends into the slide groove 221 on the door panel 200 to achieve a sliding connection between the swing arm 300 and the door panel 200.
  • the door panel 200 may include a panel body 210 and a connecting block 220, the panel body 210 is used to be fixedly connected with the first shell 21 and the second shell 22, the connecting block 220 is connected with the panel body 210, and the swing arm 300 is slidably connected with the connecting block 220, that is, the slide groove 221 may be provided on the connecting block 220, and when the swing arm 300 rotates, the connecting block 220 and the panel body 210 can be driven to rotate.
  • the above-mentioned slide groove 221 extends along the X-axis direction, which means that when the folding screen terminal 01 is in the unfolded state or the folded state, that is, the hinge mechanism 23 is in the unfolded position or the folded position, the slide groove 221 extends along the width direction of the folding screen terminal (that is, the X-axis direction).
  • the extension direction of the slide groove 221 forms an angle with the X-axis direction and is perpendicular to the Y-axis direction.
  • connection between the plate body 210 and the connecting block 220 can be a fixed connection, that is, the plate body 210 and the connecting block 220 move synchronously. It can also be a movable connection, that is, the plate body 210 and the connecting block 220 can move relative to each other. Therefore, this application does not make any special restrictions on this.
  • the swing arm 300 and the connecting block 220 are slidably connected to each other as an example, and only the connecting block 220 is shown in the subsequent figures.
  • Figure 8 is an exploded view of the rotating shaft mechanism 23 provided in Figure 6
  • Figure 9 is an assembly view of the rotating shaft mechanism 23 provided in Figure 6.
  • the damping assembly 400 may include a cam structure 410, a sliding member 420 and an elastic member 430.
  • the cam structure 410 can push the sliding member 420 to move relative to the swing arm 300.
  • the elastic member 430 slides and compresses the elastic member 430 to generate a damping force.
  • the compression direction of the elastic member 430 is parallel to the rotation axis of the swing arm 300, that is, the elastic member 430 is compressed along the Y-axis direction.
  • the elastic member 430 of the damping assembly 400 is compressed in a direction parallel to the rotation axis of the swing arm 300, that is, in the Y-axis direction. Therefore, the installation space of the elastic member 430 can be guaranteed, that is, the elastic force provided by the elastic member 430 when compressed can be guaranteed, thereby ensuring that the damping assembly 400 can provide sufficient damping force, so that when the user rotates the folding screen terminal 01, he can have a good rotation feel.
  • the damping assembly 400 is arranged between the connecting block 220 of the door panel 200 and the swing arm 300, that is, the force generated by the damping assembly 400 is applied to the connecting block 220 and the swing arm 300, thereby effectively preventing the center beam 100 from being deformed due to the force, which is beneficial to ensuring the integrity of the center beam 100 and extending the service life of the center beam 100.
  • the sliding member 420 may be a slider, and the sliding member 420 may be slidably disposed on the swing arm 300, that is, the sliding member 420 is slidably connected to the swing arm 300, and the sliding direction of the sliding member 420 relative to the swing arm 300 is parallel to the rotation axis of the swing arm 300, that is, the sliding member 420 can slide relative to the swing arm 300 along the Y-axis direction, and the cam structure 410 is disposed between the sliding member 420 and the connecting block 220 of the door panel 200. Therefore, the cam structure 410 can drive the sliding member 420 to slide along the Y-axis direction, so that the sliding member 420 can compress the elastic member 430 along the Y-axis direction.
  • a receiving groove 310 may be opened on the swing arm 300, and the receiving groove 310 may extend along the Y-axis direction.
  • the sliding member 420 and the elastic member 430 are both arranged in the receiving groove 310, and the sliding member 420 and the elastic member 430 are distributed along a direction parallel to the rotation axis of the swing arm 300 (i.e., the Y-axis direction).
  • the elastic member 430 is arranged between the two sliding members 420, that is, the two sliding members 420 are respectively arranged at the two ends of the accommodating groove 310 along the Y-axis direction, and the elastic member 430 abuts between the two sliding members 420.
  • a cam structure 410 is arranged between each sliding member 420 and the connecting block 220. In the process of relative sliding of the swing arm 300 and the door panel 200, the movement directions of the two sliding members 420 are opposite.
  • the two sliding members 420 distributed along the Y-axis direction can slide in the direction of approaching or moving away from each other.
  • the two cam structures 410 respectively drive the two sliding members 420 to slide in the direction of approaching each other, thereby compressing the elastic member 430.
  • the cam structure 410 and the sliding member 420 separate from each other, the driving force disappears, and under the elastic force of the elastic member 430, the two sliding members 420 slide in the direction of moving away from each other.
  • both sliding members 420 can compress the elastic member 430 , it is beneficial for the elastic member 430 to generate a larger elastic member 430 , thereby being able to form a larger damping force, which is beneficial for ensuring the rotation feel when the terminal is rotated.
  • FIG. 10 is a structural diagram of another rotating shaft mechanism 23 provided in an embodiment of the present application.
  • the above-mentioned sliding member 420 may also be provided with only one, and the sliding member 420 and the elastic member 430 are both provided at the first end of the receiving groove 310 along the Y-axis direction, and the elastic member 430 may abut between the sliding member 420 and the side wall of the second end of the receiving groove 310 along the Y-axis direction, so that the sliding member 420 can slide along the Y-axis direction and compress the elastic member 430.
  • the cam structure 410 may include a boss 411 and a roller 412, one of the boss 411 and the roller 412 may be disposed on the connection block 220 of the door panel 200, and the other of the boss 411 and the roller 412 may be disposed on the sliding member 420.
  • the boss 411 may be disposed on the connection block 220.
  • the roller 412 can be arranged on the sliding member 420.
  • the roller 412 abuts against the boss 411, and the boss 411 can make the roller 412 and the sliding member 420 slide along the Y-axis direction, so that the cam structure 410 and the sliding member 420 are distributed along the Y-axis direction.
  • the elastic member 430 is compressed.
  • FIG. 11 is a structural diagram of another rotating shaft mechanism 23 provided in an embodiment of the present application.
  • the boss 411 may also be arranged on the sliding member 420, and the roller 412 may also be arranged on the side wall of the slide groove 221 of the connecting block 220.
  • the two rollers 412 may be arranged on the corresponding sliding member 420, and the two bosses 411 may be arranged on the two side walls of the slide groove 221 respectively (as shown in FIG. 9).
  • the two bosses 411 may be arranged on the corresponding sliding member 420, and the two rollers 412 may be arranged on the two side walls of the slide groove 221 respectively (as shown in FIG. 11).
  • the roller 412 of a cam structure 410 may be arranged on the corresponding sliding member 420, and the boss 411 of the cam structure 410 may be arranged on the side wall of the slide groove 221; the roller 412 of another cam structure 410 may be arranged on the other side wall of the slide groove 221, and the boss 411 of the cam structure 410 may be arranged on the corresponding sliding member 420.
  • roller 412 and the boss 411 of the cam structure 410 are not arranged at unique positions, and their arrangement positions can be determined according to actual needs. Therefore, the present application does not make any special limitation on this.
  • the roller 412 can be rotatably connected to the sliding member 420 or the connecting block 220, and the rotation axis of the roller 412 is perpendicular to the sliding direction of the sliding member 420, and the rotation axis of the roller 412 is perpendicular to the sliding direction of the swing arm 300. That is, the rotation axis of the roller 412 is arranged along the Z-axis direction.
  • Figure 12 is an exploded view of the roller 412 and the sliding member 420 provided in the embodiment of the present application.
  • a rotating shaft 440 can be fixedly arranged on the sliding member 420, and the rotating shaft 440 is arranged along the Z-axis direction.
  • the roller 412 is sleeved on the rotating shaft 440 and can rotate relative to the rotating shaft 440. In this way, when the roller 412 abuts against the above-mentioned boss 411, the roller 412 can roll along the surface of the boss 411, which is conducive to reducing friction, so that the terminal can rotate more easily.
  • FIG. 13 is an enlarged view of the structure of the B area of FIG. 9.
  • the two side walls distributed along the sliding direction of the swing arm 300 on the boss 411 form guide slopes 411a, that is, the two side walls distributed along the X-axis direction on the boss 411 form guide slopes 411a.
  • the two guide slopes 411a extend in a direction away from the side wall of the slide groove 221, and the two guide slopes 411a extend in a direction close to each other.
  • the width of the boss 411 at one end close to the side wall of the slide groove 221 is the first width D1
  • the width of the boss 411 at one end away from the side wall of the slide groove 221 is the second width D2
  • the first width D1 is greater than the second width D2.
  • Figure 14 is a structural diagram of the hinge mechanism 23 provided in the embodiment of the present application in the unfolded position.
  • the two guide slopes 411a on the boss 411 are respectively the first guide slope 411b and the second guide slope 411c
  • the side wall of the boss 411 away from the side wall of the slide groove 221 is the support surface 411d, that is, the two side edges of the support surface 411d distributed along the X-axis are respectively connected to the first guide slope 411b and the second guide slope 411c.
  • the folding screen terminal 01 is in an unfolded state (as shown in Figures 1 and 2), that is, the above-mentioned swing arm 300 and the connecting block 220 (that is, the door panel 200, not shown in Figure 14) are in the unfolded position relative to the central beam 100.
  • the roller 412 is located on the side close to the first guide slope 411b.
  • the folding screen terminal 01 rotates from the unfolded state to the folded state, and the swing arm 300 slides relative to the connecting block 220 (such as 14 (direction a), the swing arm 300 drives the sliding member 420 and the roller 412 to slide synchronously, and the roller 412 abuts against the first guide inclined surface 411b of the boss 411.
  • the swing arm 300 continues to slide, and the first guide slope 411b can apply a component force parallel to the Y-axis direction to the roller 412, so that the roller 412 and the sliding member 420 slide along the Y-axis direction and compress the elastic member 430, that is, the two sliding members 420 move in a direction parallel to the Y-axis toward each other, thereby compressing the elastic member 430.
  • Figure 15 is a structural diagram of the shaft mechanism 23 provided in the embodiment of the present application in the unfolded position and the folded position
  • Figure 16 is a three-dimensional structural diagram of Figure 15.
  • the folding screen terminal 01 continues to rotate, and the swing arm 300 continues to slide relative to the connecting block 220 (i.e., along the direction a in FIG. 15 ).
  • the roller 412 rolls to a position abutting against the second guide slope 411c, that is, the roller 412 is separated from the support surface 411d, at this time, the squeezing force of the boss 411 on the roller 412 and the sliding member 420 disappears, and the elastic force of the elastic member 430 is released.
  • the elastic member 430 pushes the two sliding members 420 to move away from each other in a direction parallel to the Y axis, and the roller 412 rolls along the second guide slope 411c.
  • Figure 17 is a structural diagram of the rotating shaft mechanism 23 provided in the embodiment of the present application in the folded position
  • Figure 18 is a three-dimensional structural diagram of Figure 17.
  • the roller 412 is located on the side close to the second guide inclined surface 411c.
  • the swing arm 300 and the connecting block 220 i.e., the door panel 200
  • the elastic member 430 when the folding screen terminal 01 is in the unfolded state or the folded state, the elastic member 430 is also in a compressed state.
  • the compression amount of the elastic member 430 is the first compression amount
  • the compression amount of the elastic member is the second compression amount
  • the first compression amount is less than the second compression amount.
  • FIG. 19 is a structural diagram of another rotating shaft mechanism 23 provided in an embodiment of the present application
  • FIG. 20 is an exploded diagram of the rotating shaft mechanism 23 provided in FIG. 19.
  • a notch 320 may be provided on the side wall of the receiving groove 310 of the swing arm 300, and the sliding member 420 and the cam structure 410 may contact through the notch 320.
  • the roller 412 may be provided at the notch 320 so that the roller 412 can abut against the boss 411.
  • the roller 412 and the boss 411 are abutted against each other through the notch 320 at the side wall of the receiving groove 310 to prevent the roller 412 set on the sliding member 420 from extending out of the receiving groove 310 along the Z-axis direction, which is beneficial to reducing the dimension in the Z-axis direction, thereby helping to reduce the thickness of the terminal.
  • the above-mentioned rotating shaft mechanism 23 may also include a cover plate 500, which is arranged on the swing arm 300, and the sliding member 420 and the elastic member 430 are both arranged between the bottom surface of the receiving groove 310 and the cover plate 500. That is, a cavity can be formed between the cover plate 500 and the receiving groove 310, and the sliding member 420 and the elastic member 430 are both arranged in the cavity, so that the sliding member 420 and the elastic member 430 can be effectively protected.
  • the cover plate 500 can effectively limit the sliding member 420 and the elastic member 430 to prevent the sliding member 420 and the elastic member 430 from slipping out of the receiving groove 310 during the movement.
  • the roller 412 provided on the sliding member 420 can abut against the boss 411 through the above-mentioned notch 320, that is, the cover plate 500 can effectively protect and limit the sliding member 420 and the elastic member 430 without affecting the normal operation of the damping assembly 400, which is conducive to improving the reliability of the overall structure.
  • cover plate 500 and the swing arm 300 may be fixed by bonding, welding, clamping or bolting, and therefore, this application does not limit this.
  • the rotating shaft mechanism 23 provided in the embodiment of the present application, by setting the compression direction of the elastic member 430 along the Y-axis direction, can effectively increase the setting space of the elastic member 430, so that the damping assembly 400 can generate sufficient damping force and achieve a better rotation feel.
  • the elastic member 430 provided in the embodiment of the present application may include a spring 431.
  • the axis of the spring 431 is parallel to the rotation axis of the swing arm 300, that is, it is arranged along the Y-axis direction.
  • the spring 431 may abut between the sliding member 420 and the inner wall of the receiving groove 310.
  • the spring 431 abuts between the two sliding members 420.
  • the following description is taken as an example that the spring 431 abuts between the two sliding members 420.
  • the spring 431 may be provided in plurality, and the plurality of springs 431 may be distributed along the sliding direction of the swing arm 300, that is, the plurality of springs 431 are distributed along the X-axis direction, and the axes of the plurality of springs 431 are parallel to each other.
  • the required damping force can be obtained by the number of springs 431.
  • the number of springs 431 may be one, two, three, four, etc.
  • the damping assembly 400 may further include a limiting shaft 450, which may be fixed to the sliding member 420, and the spring 431 is sleeved on the limiting shaft 450, that is, the limiting shaft 450 is arranged along the Y-axis direction.
  • the limiting shaft 450 can limit the spring 431 from being compressed along the Y-axis direction, thereby reducing the risk of the spring 431 bending during the compression process, which is conducive to further improving the reliability of the overall structure.
  • the number of the above-mentioned limiting shafts 450 can correspond to the number of springs 431, that is, each spring 431 is correspondingly provided with a limiting shaft 450.
  • the limiting shafts 450 can be all provided on one sliding member 420, or some limiting shafts 450 can be provided on one of the two sliding members 420, and the remaining limiting shafts 450 can be provided on the other of the two sliding members 420.
  • some springs 431 can be provided with limiting shafts 450, and some springs 431 can not be provided with limiting shafts 450.
  • one spring 431 can be provided with two limiting shafts 450, wherein the two limiting shafts 450 are respectively fixed on the two sliding members 420, that is, the two ends of the spring 431 are respectively sleeved on the two limiting shafts 450, and the two limiting shafts 450 are spaced apart along the Y-axis direction. Therefore, the embodiment of the present application does not specifically limit the corresponding relationship between the limiting shaft 450 and the spring 431.
  • the spring 431 may be a conventional helical spring, and the cross section of the helical line of the spring 431 may be circular, see Figures 21 and 22, Figure 21 is a structural diagram of a spring 431 provided in an embodiment of the present application, and Figure 22 is a stereogram of Figure 21.
  • the cross section of the helical line of the spring 431 may also be square, see Figure 23 and Figure 24, Figure 23 is a structural diagram of another spring 431 provided in the embodiment of the present application, and Figure 24 is a stereoscopic diagram of Figure 23.
  • the cross section of the spiral line of the above-mentioned spring can also be a regular polygon or other shapes. Therefore, the embodiment of the present application does not make any special limitation on this.
  • the elastic member 430 may also be a special-shaped spring, which has an irregular structure.
  • the special-shaped spring may be a variable diameter coil spring, a wave spring, or a leaf spring 432.
  • FIG. 25 is a structural diagram of a leaf spring 432 provided in an embodiment of the present application
  • FIG. 26 is a structural diagram of another rotating shaft mechanism 23 (elastic member 430 is leaf spring 432 provided in FIG. 25) provided in an embodiment of the present application.
  • the above-mentioned special-shaped spring is leaf spring 432, and the plane where the surface of leaf spring 432 is located is parallel to the sliding direction and the rotation axis of the swing arm 300, that is, the surface of leaf spring 432 is parallel to the XY plane.
  • a plurality of hollow structures 432a are provided on leaf spring 432, and at least part of the regions of the plurality of hollow structures 432a are distributed along a direction parallel to the rotation axis of the swing arm 300, that is, the plurality of hollow structures 432a are distributed along the Y-axis direction.
  • the leaf spring 432 can be compressed along the Y-axis direction. Furthermore, since the leaf spring 432 is arranged along a direction parallel to the XY plane and can be compressed along the Y-axis direction through the plurality of hollow structures 432a, that is, by controlling the size of the hollow structures 432a, the elastic force that the leaf spring 432 can generate can be controlled, and therefore, the size of the leaf spring 432 along the Z-axis direction can be reduced, that is, the thickness of the leaf spring 432 can be reduced, which is more conducive to the thinning of the terminal.
  • the leaf spring 432 bends and extends in an approximately "S" shape in the XY plane, thereby forming a plurality of hollow structures 432a extending along the X direction and distributed along the Y axis on the leaf spring 432.
  • the gap of the hollow structure 432a is reduced, so that the leaf spring 432 generates elastic force.
  • Figure 27 is a structural diagram of another leaf spring 432 provided in an embodiment of the present application.
  • the leaf spring 432 is similar to the structure shown in Figure 25, except that the gap of the hollow structure 432a gradually changes along the X-axis direction. Its function is the same as above, so it will not be described repeatedly.
  • FIG. 28 is a structural diagram of another leaf spring 432 provided in an embodiment of the present application.
  • the leaf spring 432 may include a plurality of sub-regions 432b, each of which has a hollow structure 432a extending along the X-axis direction, and two adjacent sub-regions 432b are fixedly connected to each other to form an integral structure, and the connection point is located at the midpoint of the sub-region 432b along the X-axis direction.
  • the leaf spring 432 When the leaf spring 432 is compressed along the Y-axis direction, the hollow structures 432a approach each other, and the ends (ends along the X-axis direction) of the two adjacent sub-regions 432b are separated from each other, that is, the leaf spring 432 undergoes elastic deformation, thereby generating an elastic force.
  • Figure 29 is a structural diagram of another leaf spring 432 provided in an embodiment of the present application.
  • the leaf spring 432 is similar to the structure shown in Figure 28, except that the hollow structures 432a of two adjacent sub-regions 432b are connected to each other at the connection point.
  • the connection points of the two adjacent sub-regions 432b can be separated from each other along the X-axis direction, so that the leaf spring 432 can undergo a larger elastic deformation, that is, it can generate a larger elastic force.
  • Figure 30 is a structural diagram of another leaf spring 432 provided in an embodiment of the present application.
  • the leaf spring 432 is similar to the structure shown in the figure, except that the two ends of each sub-area 432b form an approximately right-angle structure. Its function is the same as above, so it will not be described repeatedly.
  • FIG. 31 is a structural diagram of another leaf spring 432 provided in an embodiment of the present application.
  • the leaf spring 432 is similar to the structure shown in FIG. 28, except that the gap of the hollow structure 432a is from the middle to the Thus, when the leaf spring 432 is compressed along the Y-axis direction, the gap of the hollow structure 432a is larger, so that the leaf spring 432 can undergo a larger elastic deformation, that is, can generate a larger elastic force.
  • Figure 32 is a structural diagram of another leaf spring 432 provided in an embodiment of the present application.
  • the leaf spring 432 is similar to the structure shown in Figure 31, except that the hollow structures 432a of two adjacent sub-regions 432b are connected to each other at the connection point.
  • the connection points of the two adjacent sub-regions 432b can be separated from each other along the X-axis direction, so that the leaf spring 432 can undergo greater elastic deformation, that is, it can generate greater elastic force.
  • FIG. 33 is a structural diagram of another leaf spring 432 provided in an embodiment of the present application.
  • the leaf spring 432 may include abutting portions 432c at both ends and a plurality of first elastic portions 432d and a plurality of second elastic portions 432e located between the two abutting portions 432c.
  • the vertical projections of the first elastic portion 432d and the second elastic portion 432e in the XY plane are both arc-shaped structures, and the two are arranged symmetrically along the Y axis.
  • the hollow structure 432a is provided between the first elastic portion 432d and the second elastic portion 432e, between adjacent first elastic portions 432d, and between adjacent second elastic portions 432e.
  • the leaf spring 432 When the leaf spring 432 is compressed along the Y axis, the two abutting portions 432c approach each other, and the middle areas of the first elastic portion 432d and the second elastic portion 432e move away from each other, that is, the first elastic portion 432d and the second elastic portion 432e are further bent and elastically deformed, thereby generating elastic force.
  • FIG. 34 is a structural diagram of another leaf spring 432 provided in an embodiment of the present application.
  • the leaf spring 432 is spirally extended outward from the midpoint in the XY plane to form a spiral structure, and the leaf spring 432 can fix the midpoint on the swing arm 300.
  • the spiral gap i.e., the hollow structure 432a
  • elastic deformation occurs, and thus elastic force can be generated.

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Abstract

一种转轴机构（23）、支撑装置（20）以及折叠屏终端（01），涉及电子设备技术领域，用于解决折叠屏终端（01）的转轴机构（23）设置空间小，转轴机构（23）产生阻尼力不足，转动手感下降的问题。上述转轴机构（23）包括中梁（100）、门板（200）、摆臂（300）、阻尼组件（400）以及弹性件（430）。门板（200）能够相对于中梁（100）转动。摆臂（300）设置于门板（200）与中梁（100）之间，摆臂（300）的第一端与中梁（100）转动连接，摆臂（300）的第二端与门板（200）滑动连接；摆臂（300）带动门板（200）相对于中梁（100）转动的过程中，摆臂（300）与门板（200）相对滑动。阻尼组件（400）设置于摆臂（300）与门板（200）之间，阻尼组件（400）包括凸轮结构（410）、滑动件（420）以及弹性件（430）。在门板（200）与摆臂（300）相对滑动的过程中，凸轮结构（410）能够推动滑动件（420）沿摆臂（300）的转动轴线滑动，以压缩弹性件（430），并产生阻尼力。

Description

一种转轴机构、支撑装置以及折叠屏终端
本申请要求于2023年11月30日提交国家知识产权局、申请号为202311646873.5、发明名称为“一种转轴机构、支撑装置以及折叠屏终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电子设备技术领域，尤其涉及一种转轴机构、支撑装置以及折叠屏终端。
背景技术
随着科技的进步，大屏智能终端时代来临，为了解决传统的平板电脑体积较大，不方便携带以及直板手机屏幕较小的问题，折叠屏终端应运而生。
折叠屏终端处于展开状态能够实现大屏显示，处于折叠状态能够减小体积，便于携带。因此，受到越来越多用户的青睐。
但是，随着终端设备轻薄化的发展趋势，折叠屏终端的转轴机构的设置空间不断减小，导致转轴机构产生的阻尼力不足，转动手感下降，影响用户体验。
发明内容
本申请实施例提供一种转轴机构、支撑装置以及折叠屏终端，用于解决折叠屏终端的转轴机构设置空间减小，导致转轴机构产生的阻尼力不足，转动手感下降，影响用户体验的问题。
为达到上述目的，本申请的实施例采用如下技术方案：
第一方面，提供了一种转轴机构，该转轴机构包括中梁、门板、摆臂、阻尼组件以及弹性件。门板能够相对于中梁转动。摆臂设置于门板与中梁之间，摆臂的第一端与中梁转动连接，摆臂的第二端与门板滑动连接；摆臂带动门板相对于中梁转动的过程中，摆臂与门板相对滑动，摆臂的转动轴线与摆臂的滑动方向相互垂直。阻尼组件设置于摆臂与门板之间，阻尼组件包括凸轮结构、滑动件以及弹性件。在门板与摆臂相对滑动的过程中，凸轮结构能够推动滑动件沿摆臂的转动轴线滑动，以压缩弹性件，并产生阻尼力。即弹性件的压缩方向与摆臂的转动轴线平行。
本申请第一方面提供的转轴机构，将阻尼组件设置于门板与摆臂之间，从而不会对中梁施加弹性力，因此，能够避免中梁发生变形，有利于保证中梁的平面度。并且，在门板与摆臂相对滑动的过程中，凸轮结构推动滑动件滑动，滑动件能够沿平行于摆臂的转动轴线的方向压缩弹性件，以产生阻尼力。即弹性件可以沿平行于摆臂的转动轴线的方向设置，从而能够保证弹性件的长度尺寸，以保证弹性件能够产生足够的弹性力(即阻尼力)，进而能够保证终端设备的转动手感，有利于提升用户体验。
本申请第一方面的一种可能的实现方式中，滑动件滑动设置于摆臂上，滑动件相对于摆臂滑动的滑动方向与摆臂的转动轴线平行，凸轮结构设置于门板与滑动件之间。在该结构下，滑动件相对于摆臂滑动过程中，则能够压缩弹性件，从而在摆臂与门板相对于中梁转动的过程中，能够产生足够的阻尼力。
本申请第一方面的一种可能的实现方式中，凸轮结构包括凸台和滚子，凸台和滚子中的一个设置于门板上，凸台和滚子中的另一个设置于滑动件上；在摆臂与门板相对滑动的过程中，凸台和滚子抵接，且沿平行于摆臂的转动轴线的方向相对运动，以使滑动件沿平行于摆臂的转动轴线的方向滑动。这样一来，通过滚子与凸台抵接，并沿凸台的表面滚动，凸台能够对滚子施加平行于摆臂转动轴线的分力，从而使滑动件能够沿该方向滑动，以压缩弹性件。
本申请第一方面的一种可能的实现方式中，滚子转动连接于滑动件或门板上，滚子的转动轴线与滑动件的滑动方向垂直，且滚子的转动轴线与摆臂的滑动方向垂直。在该结构下，滚子能够沿凸台的表面滚动，以减小摩擦力，有利于降低滚子与凸台之间的磨损，并能够减小对阻尼力的衰减。
示例性地，滚子可以设置于滑动件上，上述阻尼组件还可以包括转轴，转轴固定于滑动件上，转轴的轴线垂直于摆臂的滑动方向，且转轴的轴线垂直于滑动件的滑动方向，滚子套设于转轴上，从而实现滚子转动连接于滑动件上。
本申请第一方面的一种可能的实现方式中，凸台上沿摆臂的滑动方向分布的两侧壁均形成导向斜面，在门板与摆臂相对滑动的过程中，滚子沿导向斜面滑动，以使滑动件沿平行于摆臂的转动轴线的方向滑动。
本申请第一方面的一种可能的实现方式中，摆臂上设置有容纳槽，滑动件和弹性件均设置于容纳槽，且滑动件与弹性件沿平行于摆臂的转动轴线的方向分布。在该结果下，有利于减小转轴机构的厚度尺寸，从而有利于折叠屏终端的薄型化。
本申请第一方面的一种可能的实现方式中，滑动件设置有两个，且弹性件设置于两个滑动件之间，每个滑动件与门板之间均设置有凸轮结构；在摆臂与门板相对滑动的过程中，两个滑动件的运动方向相反。这样一来，两个滑动件均能够对弹性件进行压缩，有利于进一步提升阻尼力。
本申请第一方面的一种可能的实现方式中，转轴机构还包括盖板，盖板设置于摆臂上，滑动件和弹性件均设置于容纳槽的底面与盖板之间。在该结构下，盖板能够对弹性件以及滑动件形成有效保护，以及有效限位，有利于提升整体结构的可靠性。
本申请第一方面的一种可能的实现方式中，容纳槽的侧壁上开设有缺口，滑动件与凸轮结构通过缺口接触。在该结构下，凸台与滚子可以由缺口处相互抵接，有利于进一步减小厚度尺寸。
本申请第一方面的一种可能的实现方式中，弹性件为弹簧，弹簧的轴线与摆臂的转动轴线平行。示例性地，该弹簧为常规弹簧，其螺旋线的截面可以为圆形、方形、多边形或者其他形状。
本申请第一方面的一种可能的实现方式中，弹簧设置有多个，多个弹簧沿摆臂的滑动方向分布，且多个弹簧的轴线相互平行。在该结构下，能够通过控制弹簧的数量来调节所需的阻尼力。
本申请第一方面的一种可能的实现方式中，阻尼组件还包括限位轴，弹簧套设于限位轴上，限位轴相对于滑动件固定。在该结构下，限位轴能够限制弹簧的压缩方向，以降低弹簧被压缩时，发生弯折的风险，有利于提升整体结构的可靠性。
本申请第一方面的一种可能的实现方式中，弹性件为异形弹簧，异形弹簧的压缩 方向平行于摆臂的转动轴线。这样一来，可以根据实际的设计需求，选择不同结构或者形状的异形弹簧，有利于增大弹性件的可选择范围。
本申请第一方面的一种可能的实现方式中，异形弹簧包括片弹簧，片弹簧的表面所在的平面平行于摆臂的转动轴线和滑动方向，片弹簧上开设有多个镂空结构，多个镂空结构的至少部分区域沿平行于摆臂的转动轴线的方向分布。这样一来，片弹片的弹性力大小可以根据镂空结构的间距进行调节，因此，片弹簧的厚度尺寸对自身的弹性力的影响较小，即能够减小片弹簧的厚度尺寸，更加有利于折叠片终端的薄型化。
本申请第一方面的一种可能的实现方式中，门板上开设有滑槽，摆臂的第二端伸入滑槽内，凸轮结构设置于滑槽的侧壁与滑动件之间。在该结构下，能够避免门板的表面形成凸出结构，从而更有利于保证终端设备的薄型化。
本申请第一方面的一种可能的实现方式中，门板包括板本体和连接块，板本体与连接块连接，滑槽开设于连接块上。在该结构下，通过连接块与摆臂连接，板本体可以用于与壳体等结构件固定连接，一方面通过连接块能够保证摆臂与门板之间的支撑强度，另一方面有利于减轻门板整体的重量。
第二方面，提供了一种支撑装置，该支撑装置包括第一壳体、第二壳体以及如上任一技术方案所述的转轴机构，转轴机构的中梁两侧均设置有门板，第一壳体和第二壳体分别与中梁两侧的门板固定连接。
本申请第二方面提供的支撑装置，由于包括上述任一技术方案所述的转轴机构，因此，能够解决相同的技术问题，并取得相同的技术效果。
第三方面，提供了一种折叠屏终端，该折叠屏终端包括折叠屏和支撑装置。折叠屏包括第一部分、第二部分以及第三部分，第三部分位于第一部分和第二部分之间。支撑装置为如上技术方案所述的支撑装置，折叠屏的第一部分固定于第一壳体上，折叠屏的第二部分固定于第二壳体上，折叠屏的第三部分设置于转轴机构上。
本申请第三方面提供的折叠屏终端，由于包括上述技术方案所述的支撑装置，因此，能够解决相同的技术问题，并取得相同的技术效果。
附图说明
图1为本申请实施例提供的折叠屏终端的结构图；
图2为本申请实施例提供的折叠屏终端的主视图；
图3为本申请实施例提供的折叠屏终端(处于折叠状态)的主视图；
图4为相关技术提供的转轴机构的结构图；
图5为图4的A-A剖面图；
图6为本申请实施例提供的一种转轴机构的结构图；
图7为本申请实施例提供的一种门板的爆炸图；
图8为图6提供的转轴机构的爆炸图；
图9为图6提供的转轴机构的装配图；
图10为本申请实施例提供的另一种转轴机构的结构图；
图11为本申请实施例提供的又一种转轴机构的结构图；
图12为本申请实施例提供的滚子与滑动件的爆炸图；
图13为图9的B区域结构放大图；
图14为本申请实施例提供的转轴机构处于展开位置的结构图；
图15为本申请实施例提供的转轴机构处于展开位置和折叠位置之间的结构图；
图16为图15的立体结构图；
图17为本申请实施例提供的转轴机构处于折叠位置的结构图；
图18为图17的立体结构图；
图19为本申请实施例提供的又一种转轴机构的结构图；
图20为图19提供的转轴机构的爆炸图；
图21为本申请实施例提供的一种弹簧的结构图；
图22为图21的立体图；
图23为本申请实施例提供的另一种弹簧的结构图；
图24为图23的立体图；
图25为本申请实施例提供的一种片弹簧的结构图；
图26为本申请实施例提供的又一种转轴机构(弹性件为图25提供的片弹簧)的结构图；
图27为本申请实施例提供的另一种片弹簧的结构图；
图28为本申请实施例提供的又一种片弹簧的结构图；
图29为本申请实施例提供的又一种片弹簧的结构图；
图30为本申请实施例提供的又一种片弹簧的结构图；
图31为本申请实施例提供的又一种片弹簧的结构图；
图32为本申请实施例提供的又一种片弹簧的结构图；
图33为本申请实施例提供的又一种片弹簧的结构图；
图34为本申请实施例提供的又一种片弹簧的结构图。
附图标记：01-折叠屏终端；10-折叠屏；11-第一部分；12-第二部分；13-第三部分；20-支撑装置；21-第一壳体；21a-第一贴合面；22-第二壳体；22a-第二贴合面；23-转轴机构；23a-第三贴合面；100-中梁；200-门板；210-板本体；220-连接块；221-滑槽；300-摆臂；310-容纳槽；320-缺口；400-阻尼组件；401-凸轮部；402-支撑架；403-滚动部；404-弹性元件；410-凸轮结构；411-凸台；411a-导向斜面；411b-第一导向斜面；411c-第二导向斜面；411d-支撑面；412-滚子；420-滑动件；430-弹性件；431弹簧；432-片弹簧；432a-镂空结构；432b-子区域；432c-抵接部；432d-第一弹性部；432e-第二弹性部；440-转轴；450-限位轴；500-盖板。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。
以下，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或者更多个该特征。
此外，本申请中，“上”、“下”等方位术语是相对于附图中的部件示意置放的方位来定义的，应当理解到，这些方向性术语是相对的概念，它们用于相对于的描述和澄清，其可以根据附图中部件所放置的方位的变化而相应地发生变化。
在本申请中，除非另有明确的规定和限定，术语“连接”应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或成一体；可以是直接相连，也可以通过中间媒介间接相连。
本申请实施例提供一种折叠屏终端。该折叠屏终端可以为具有折叠屏的一类电子设备，例如，折叠屏手机。其中，折叠屏手机可以为具有外折叠显示屏的手机，也可以为具有内折叠显示屏的手机。以下为了方便说明，均是以折叠屏终端为具有外折叠显示屏的手机为例进行的举例说明。
具体地，请参阅图1和图2，图1为本申请实施例提供的折叠屏终端01的结构图，图2为本申请实施例提供的折叠屏终端01的主视图。该折叠屏终端01可以包括折叠屏10和支撑装置20。
为方便下文描述，建立XYZ坐标系，定义折叠屏终端01的宽度方向为X轴方向，折叠屏终端01的长度方向为Y轴方向，折叠屏终端01的厚度方向为Z轴方向。可以理解的是，电子设备的坐标系可以根据实际需要进行灵活设置，本申请仅给出了一种示例，并不能认为是对本申请构成的特殊限制。
可以理解的是，图1和图2仅示意性的示出了电子设备包括的一些部件，这些部件的实际形状、实际大小、实际位置和实际构造不受图1和图2的限制。
上述折叠屏10用于显示图像、视频等。折叠屏10包括第一部分11、第二部分12以及第三部分13，第三部分13位于第一部分11和第二部分12之间。当折叠屏10被折叠时，第三部分13被弯折，且第一部分11与第二部分12相背离设置。折叠屏10的至少第三部分13采用柔性材料制作，第一部分11和第二部分12可以采用柔性材料制作，也可以采用刚性材料制作，还可以部分采用柔性材料制作、部分采用刚性材料制作。因此，本申请对此不作特殊限定。
其中，上述折叠屏10可以为有机发光二极管(organic light-emitting diode，OLED)显示屏，有源矩阵有机发光二极体或主动矩阵有机发光二极体(active-matrix organic light-emitting diode，AMOLED)显示屏，迷你发光二极管(mini organic light-emitting diode)显示屏，微型发光二极管(micro organic light-emitting diode)显示屏，微型有机发光二极管(micro organic light-emitting diode)显示屏，量子点发光二极管(quantum dot light emitting diode，QLED)显示屏，液晶显示屏(liquid crystal display，LCD)等等。
上述支撑装置20用于支撑折叠屏10。该支撑装置20可以包括第一壳体21、第二壳体22以及转轴机构23，转轴机构23连接于第一壳体21和第二壳体22之间。第一壳体21上具有第一贴合面21a，折叠屏10的第一部分11支撑并贴合于该第一贴合面21a上。第二壳体22上具有第二贴合面22a，折叠屏10的第二部分12支撑并贴合于该第二贴合面22a上。转轴机构23上具有第三贴合面23a，折叠屏10的第三部分13支撑并贴合于第三贴合面23a上。第一壳体21和第二壳体22通过转轴机构23实现转动连接，以使折叠屏终端01能够在展开状态和折叠状态之间转动。
当折叠屏终端01处于展开状态的情况下，第一贴合面21a、第二贴合面22a以及第三贴合面23a处于同一平面，以使折叠屏10完全展开，并能够保证折叠屏10的平整性。在此状态下，能够实现大屏显示，可以为用户带来更好的使用体验。示例性地， 当用户使用折叠屏终端01观看电影时，可以使折叠屏终端01展开，使用大屏幕观看，从而获得更好的观看体验。
当折叠屏终端01处于折叠状态的情况下，请参阅图3，图3为本申请实施例提供的折叠屏终端01(处于折叠状态)的主视图。折叠屏10的第三部分13被弯折，折叠屏10的第一部分11和第二部分12相背离，支撑装置20位于折叠屏10的第一部分11和第二部分12之间。此时，折叠屏终端01仅使用折叠屏10的第一部分11或者第二部分12显示图像，即用户可以使用小屏幕显示，实现单手操作。示例性地，当用户乘坐公共交通工具时，由于需要使用一只手握住扶手，仅能够单手握持设备，因此，可以将折叠屏终端01折叠，以减小终端宽度，从而进行单手操作，有利于进一步提升用户体验。
这样一来，折叠屏终端01的不同使用状态，能够适用于不同的应用场景，用户可以根据具体应用场景自由选择折叠屏终端01的使用状态，有利于使用户获得更好的使用体验。
上述转轴机构23用于带动第一壳体21和第二壳体22在展开位置和折叠位置之间转动，以使折叠屏终端01能够在展开状态和折叠状态之间转动。请参阅图4和图5，图4为相关技术提供的转轴机构23的结构图，图5为图4的A-A剖面图。
该转轴机构23包括中梁100、门板200以及摆臂300，中梁100沿自身长度方向(即上述Y轴方向)的两侧均设置有门板200，且门板200与中梁100之间设置有摆臂300，摆臂300的第一端与中梁100转动连接，摆臂300的第二端与门板200滑动连接。在一些实施例中，门板200与中梁100之间设置有多个摆臂300的情况下，多个摆臂300沿中梁100的长度方向间隔分布。
上述摆臂300带动门板200相对于中梁100转动的过程中，摆臂300与门板200之间能够相对滑动，且摆臂300的转动轴线(即Y轴方向)与摆臂300的滑动方向(即X轴方向)相互垂直。图1和图2所示的第一壳体21和第二壳体22分别位于中梁100的两侧，且与相邻的门板200固定连接，从而通过门板200带动第一壳体21和第二壳体22在展开位置和折叠位置之间转动。
此外，为提升上述折叠屏终端01在转动过程中的手感。上述转轴机构23中还可以设置有阻尼组件400，该阻尼组件400设置于上述摆臂300与门板200之间。
具体地，请继续参阅图4和图5，上述阻尼组件400可以包括形成于中梁100边缘区域(沿Y轴方向延伸的边缘区域)的凸轮部401、滑动连接于摆臂300上的支撑架402、与支撑架402转动连接的滚动部403以及抵接于支撑架402与摆臂300之间的弹性元件404(例如，压缩弹簧)。支撑架402能够与摆臂300同步转动，并且滚动部403能够与凸轮部401相互抵接。
其中，在支撑架402与摆臂300同步转动的过程中，滚动部403抵接于凸轮部401上，并沿凸轮部401的表面滚动。在滚动部403沿凸轮部401的表面滚动的过程中，滚动部403能够推动支撑架402与摆臂300发生相对滑动，并挤压弹性元件404。
这样一来，当折叠屏终端01在展开位置和折叠位置之间转动的过程中，滚动部403抵接于凸轮部401上，并沿凸轮部401的表面滚动，以使支撑架402相对于摆臂300滑动，并压缩弹性元件404，以产生弹性力。因此，弹性元件404向支撑架402施 加反作用力，从而使滚动部403与凸轮部401之间形成阻尼力。用户在转动折叠屏终端01时，能够起到阻尼作用，以提升用户使用手感。并且，能够降低用户用力过大，导致设备损坏的风险。
随着电子设备不断向轻薄化发展的趋势，折叠屏终端01的尺寸越来越小，转轴机构23的尺寸也不断减薄减窄(即减小沿Z轴方向以及X轴方向的尺寸)，以使得上述阻尼组件400的设置空间有限。
由于上述弹性元件404沿X轴方向设置，当弹性元件404沿X方向被压缩时，能够产生阻尼力(即弹性力)。当转轴机构23的宽度尺寸减小时，会造成弹性元件404的长度尺寸(沿弹性件430压缩方向的尺寸，即X方向)减小，进而导致弹性件430能够提供的阻尼力减小。因此，折叠屏终端01在转动过程中，难以实现较好的转动手感。并且，滚动部403在弹性件430的弹力作用下，抵接于中梁100边缘区域的凸轮部401上，容易造成中梁100变形，导致平面度变差，影响用户体验。
为解决上述问题，本申请实施例提供另一种转轴机构23，该转轴机构23可以用于上述折叠屏终端01上。请参阅图6和图7，图6为本申请实施例提供的一种转轴机构23的结构图，图7为本申请实施例提供的一种门板200的爆炸图。
具体地，该转轴机构23可以包括上述中梁100、门板200、摆臂300以及阻尼组件400。且中梁100沿长度方向的两侧均设置有门板200，中梁100两侧的门板200分别与第一壳体21以及第二壳体22固定连接。摆臂300设置于中梁100与门板200之间，且摆臂300的第一端与中梁100转动连接，摆臂300的第二端与门板200滑动连接，摆臂300的转动轴线(即Y轴方向)与摆臂300的滑动方向(即X轴方向)相互垂直。
其中，上述门板200上可以开设有滑槽221，该滑槽221沿X轴方向延伸，摆臂300的第二端伸入门板200上的滑槽221内，以实现摆臂300与门板200之间滑动连接。在一些实施例中，请继续参阅图7，上述门板200可以包括板本体210和连接块220，板本体210用于与上述第一壳体21以及第二壳体22固定连接，连接块220与板本体210连接，摆臂300与连接块220滑动连接，即滑槽221可以开设于连接块220上，摆臂300转动时即可带动连接块220与板本体210转动。
需要说明的是，上述滑槽221沿X轴方向延伸是指，折叠屏终端01处于展开状态或者折叠状态的情况下，即转轴机构23处于展开位置或折叠位置，滑槽221沿折叠屏终端的宽度方向(即X轴方向延伸)。当转轴机构23处于展开位置和折叠位置之间时，滑槽221的延伸方向与X轴方向形成夹角，且与Y轴方向垂直。
并且，板本体210与连接块220之间的连接方式，可以为固定连接，即板本体210与连接块220之间同步运动。也可以为活动连接，即板本体210与连接块220之间可以相对运动。因此，本申请对此不作特殊限定。
因此，在下文实施例中，均以摆臂300与连接块220滑动连接为例进行说明，且在后续附图中仅示出上述连接块220。请参阅图8和图9，图8为图6提供的转轴机构23的爆炸图，图9为图6提供的转轴机构23的装配图。
上述阻尼组件400可以包括凸轮结构410、滑动件420以及弹性件430。在门板200的连接块220与摆臂300相对滑动的过程中，凸轮结构410能够推动滑动件420 滑动，并压缩弹性件430，以产生阻尼力，弹性件430的压缩方向与摆臂300的转动轴线平行，即弹性件430沿Y轴方向被压缩。
这样一来，上述阻尼组件400的弹性件430沿平行于摆臂300的转动轴线的方向被压缩，即Y轴方向。因此，能够保证弹性件430的设置空间，即能够保证弹性件430的被压缩时提供的弹性力大小，从而保证阻尼组件400能够提供充足的阻尼力，以使用户转动折叠屏终端01时，能够具有良好的转动手感。
并且，上述阻尼组件400设置于门板200的连接块220与摆臂300之间，即阻尼组件400产生的作用力施加于连接块220以及摆臂300上，从而能够有效避免中梁100因受力发生变形的情况，有利于保证中梁100完好，延长中梁100的使用寿命。
在一些实施例中，请继续参阅图8和图9，上述滑动件420可以为滑块，该滑动件420可以滑动设置于摆臂300上，即滑动件420与摆臂300滑动连接，且滑动件420相对于摆臂300的滑动方向与摆臂300的转动轴线平行，即滑动件420能够相对于摆臂300沿Y轴方向滑动，上述凸轮结构410设置于滑动件420与门板200的连接块220之间。因此，凸轮结构410能够驱动滑动件420沿Y轴方向滑动，从而使滑动件420能够沿Y轴方向压缩弹性件430。
示例性地，摆臂300上可以开设有容纳槽310，容纳槽310可以沿Y轴方向延伸，滑动件420和弹性件430均设置于该容纳槽310内，且滑动件420与弹性件430沿平行于摆臂300的转动轴线的方向(即Y轴方向)分布。
并且，上述滑动件420设置有两个，弹性件430设置于两个滑动件420之间，即两个滑动件420分别设置于容纳槽310沿Y轴方向的两端，弹性件430抵接于两个滑动件420之间，每个滑动件420与连接块220之间均设置有凸轮结构410，在摆臂300与门板200相对滑动的过程中，两个滑动件420的运动方向相反。
这样一来，当摆臂300与连接块220之间相对滑动的过程中，沿Y轴方向分布的两个滑动件420能够向相互靠近或者相互远离的方向滑动。例如，当折叠屏终端01由折叠状态向展开状态转动的过程中，两个凸轮结构410分别驱动两个滑动件420向相互靠近的方向滑动，从而压缩弹性件430。当折叠屏终端01转动至展开位置时，凸轮结构410与滑动件420相互分离，驱动力消失，在弹性件430的弹力作用下，两个滑动件420分别向相互远离的方向滑动。
由于两个滑动件420均能够对弹性件430进行压缩，因此，有利于使弹性件430产生更大的弹性件430，从而能够形成更大的阻尼力，有利于保证终端转动时的转动手感。
在另一些实施例中，请参阅图10，图10为本申请实施例提供的另一种转轴机构23的结构图。上述滑动件420也可以仅设置一个，滑动件420和弹性件430均设置于容纳槽310沿Y轴方向的第一端，弹性件430可以抵接于滑动件420与容纳槽310沿Y轴方向的第二端的侧壁之间，以使滑动件420能够沿Y轴方向滑动，并压缩弹性件430。
在此基础上，请继续参阅图10，上述凸轮结构410可以包括凸台411和滚子412，凸台411和滚子412中的一个可以设置于门板200的连接块220上，凸台411和滚子412中的另一个可以设置于滑动件420上。例如，凸台411可以设置于连接块220的 滑槽221侧壁上，滚子412可以设置于滑动件420上。当摆臂300与连接块220之间相对滑动的过程中，滚子412与凸台411抵接，该凸台411能够使滚子412和滑动件420沿Y轴方向滑动，从而使凸轮结构410与滑动件420沿Y轴方向分布。此时，弹性件430被压缩。
或者，在另一些可能的示例中，请参阅图11，图11为本申请实施例提供的又一种转轴机构23的结构图。凸台411也可以设置于滑动件420上，滚子412也可以设置于连接块220的滑槽221侧壁上。并且，在上述滑动件420设置两个的情况下，可以是两个滚子412均设置于对应的滑动件420上，两个凸台411分别设置于滑槽221的两个侧壁上(如图9所示)。也可以是两个凸台411均设置于对应的滑动件420上，两个滚子412分别设置于滑槽221的两个侧壁上(如图11所示)。
或者，还可以是一个凸轮结构410的滚子412设置于对应的滑动件420上，该凸轮结构410的凸台411设置于滑槽221的侧壁上；另一个凸轮结构410的滚子412设置于滑槽221的另一侧壁上，该凸轮结构410的凸台411设置于对应的滑动件420上。
可以理解的是，上述凸轮结构410的滚子412和凸台411的设置位置不唯一，其设置位置可以根据实际需求来确定。因此，本申请对此不作特殊限定。
此外，上述滚子412可以转动连接于上述滑动件420或者连接块220上，滚子412的转动轴线与滑动件420的滑动方向垂直，且滚子412的转动轴线与摆臂300的滑动方向垂直。即滚子412的转动轴线沿Z轴方向设置。例如，请参阅图12，图12为本申请实施例提供的滚子412与滑动件420的爆炸图，滚子412设置于滑动件420上的情况下，可以在滑动件420上固定设置有转轴440，该转轴440沿Z轴方向设置，滚子412套设于转轴440上，并能够相对于转轴440转动。这样一来，当滚子412与上述凸台411抵接时，滚子412能够沿凸台411的表面滚动，从而有利于减小摩擦力，以使终端转动更加轻松。
基于此，为使滚子412与凸台411抵接时，能够产生沿Y轴方向分离。请参阅图13，图13为图9的B区域结构放大图，在凸台411上沿摆臂300的滑动方向分布的两侧壁均形成导向斜面411a，即凸台411上沿X轴方向分布的两个侧壁均形成导向斜面411a。并且，两个导向斜面411a均向远离滑槽221侧壁的方向延伸，且两个导向斜面411a向相互靠近的方向延伸。也即是，在XY平面内，凸台411靠近滑槽221侧壁一端的宽度为第一宽度D1，凸台411远离滑槽221侧壁的一端的宽度为第二宽度D2，第一宽度D1大于第二宽度D2。
示例性地，以折叠屏终端01由展开状态向折叠状态转动的过程为例，请参阅图14，图14为本申请实施例提供的转轴机构23处于展开位置的结构图。其中，凸台411上的两个导向斜面411a分别为第一导向斜面411b和第二导向斜面411c，凸台411上远离滑槽221侧壁的侧壁为支撑面411d，即支撑面411d沿X轴分布的两侧边沿分别与第一导向斜面411b和第二导向斜面411c相接。
初始时，折叠屏终端01处于展开状态(如图1和图2所示)，即上述摆臂300和连接块220(即门板200，图14中未示出)相对于中梁100处于展开位置处，请继续参阅图14并结合图6所示，此时，滚子412位于靠近第一导向斜面411b的一侧。
折叠屏终端01由展开状态向折叠状态转动，摆臂300相对于连接块220滑动(如 图14中a方向)，摆臂300带动滑动件420以及滚子412同步滑动，滚子412与凸台411的第一导向斜面411b抵接。
然后，摆臂300继续滑动，第一导向斜面411b能够向滚子412施加一个平行于Y轴向的分力，以使滚子412和滑动件420沿Y轴方向滑动，并且压缩弹性件430，即两个滑动件420沿平行Y轴的方向，向相互靠近的方向运动，从而压缩弹性件430。
接下来，滚子412沿第一导向斜面411b滚动，当滚子412与第一导向斜面411b分离，并与支撑面411d抵接时，弹性件430产生的弹性力最大，即此时阻尼力最大。请参阅图15和图16，图15为本申请实施例提供的转轴机构23处于展开位置和折叠位置之间的结构图，图16为图15的立体结构图。
接下来，折叠屏终端01继续转动，摆臂300继续相对于连接块220滑动(即沿图15中a方向)。当滚子412滚动至与第二导向斜面411c抵接的位置时，即滚子412与支撑面411d分离，此时，凸台411对滚子412以及滑动件420的挤压力消失，弹性件430的弹性力被释放，弹性件430推动两个滑动件420沿平行于Y轴的方向，向相互远离的方向运动，滚子412沿第二导向斜面411c滚动。
最后，请参阅图17和图18，图17为本申请实施例提供的转轴机构23处于折叠位置的结构图，图18为图17的立体结构图。滚子412位于靠近第二导向斜面411c的一侧。此时，摆臂300与连接块220(即门板200)相对于中梁100转动至折叠位置，即终端转动至折叠状态。
此外，折叠屏终端01由折叠状态向展开状态转动的过程，与上述运动过程相反，其原理相同，因此，不作重复描述。
需要说明的是，折叠屏终端01处于展开状态或者折叠状态的情况下，弹性件430也处于被压缩的状态。折叠屏终端01处于展开状态或者折叠状态时，弹性件430的压缩量为第一压缩量，折叠屏终端01处于展开状态和折叠状态之间时，弹性件的压缩量为第二压缩量，第一压缩量小于第二压缩量。从而能够降低折叠屏终端01处于展开状态或者折叠状态时，各个部件之间出现相对移动的风险，有利于提升整体结构的可靠性。
由此可知，由于上述弹性件430沿Y轴方向设置，即弹性件430能够沿Y中方向被压缩，因此，有利于增大弹性件430的设置空间，从而使阻尼组件400能够产生足够的阻尼力，以使用户在转动终端的过程中，能够获得较好的转动手感，有利于提升用户体验。
在此基础上，请参阅图19和图20，图19为本申请实施例提供的又一种转轴机构23的结构图，图20为图19提供的转轴机构23的爆炸图。在该转轴机构23中，摆臂300的容纳槽310的侧壁上可以开设有缺口320，滑动件420与凸轮结构410可以通过该缺口320接触。例如，在上述滚子412设置于滑动件420上，凸台411设置于滑槽221的侧壁上的情况下，滚子412可以设置于该缺口320处，以使滚子412能够与凸台411相互抵接。
这样一来，使滚子412与凸台411通过容纳槽310的侧壁处的缺口320相互抵接，以避免设置于滑动件420上的滚子412沿Z轴方向伸出容纳槽310外，有利于减小Z轴方向的尺寸，从而有利于减小终端的厚度尺寸。
另外，请继续参阅图19和图20，上述转轴机构23还可以包括盖板500，该盖板500设置于摆臂300上，滑动件420和弹性件430均设置于容纳槽310的底面与盖板500之间。即盖板500与容纳槽310之间能够形成腔体，滑动件420和弹性件430均设置于该腔体内，从而能够对滑动件420和弹性件430形成有效保护。
并且，盖板500能够对滑动件420和弹性件430形成有效限位，以避免滑动件420和弹性件430在运动过程中，脱出容纳槽310。同时，滑动件420上设置的滚子412能够通过上述缺口320与凸台411抵接，即盖板500在不影响阻尼组件400正常工作的情况下，能够对滑动件420以及弹性件430形成有效保护和限位，有利于提升整体结构的可靠性。
在一些实施例中，盖板500与摆臂300之间可以通过粘接、焊接、卡接或者螺栓连接等方式固定，因此，本申请对此不作限定。
由上述可知，本申请实施例提供的转轴机构23，通过将弹性件430的压缩方向沿Y轴方向设置，因此，能够有效增加弹性件430的设置空间，以使阻尼组件400能够产生充足的阻尼力，实现较好的转动手感。
基于此，请继续参阅图20，本申请实施例提供的弹性件430可以包括弹簧431，弹簧431的轴线与摆臂300的转动轴线平行，即沿Y轴方向设置。当滑动件420仅设置一个的情况下，该弹簧431可以抵接于滑动件420与容纳槽310的内壁之间。当滑动件420设置有两个的情况下，弹簧431则抵接于两个滑动件420之间。以下均以弹簧431抵接于两个滑动件420之间为例进行说明。
在一些实施例中，上述弹簧431可以设置有多个，多个弹簧431可以沿摆臂300的滑动方向分布，即多个弹簧431沿X轴方向分布，且多个弹簧431的轴线相互平行。在该结构下，可以通过弹簧431的设置数量的多少来获得所需要的阻尼力。例如，弹簧431可以设置一个、两个、三个、四个等。
此外，请继续参阅图20，上述阻尼组件400还可以包括限位轴450，限位轴450可以固定于上述滑动件420上，弹簧431套设于限位轴450上，即限位轴450沿上述Y轴方向设置。这样一来，弹簧431被压缩时，限位轴450能够限制弹簧431沿Y中方向被压缩，从而能够降低弹簧431在被压缩的过程中出现弯折的风险，有利于进一步提升整体结构的可靠性。
在一些实施例中，上述限位轴450的数量可以与弹簧431的数量一一对应，即每一个弹簧431均对应设置有一个限位轴450，在此情况下，限位轴450可以均设置于一个滑动件420上，也可以部分限位轴450设置于两个滑动件420中的一个上，剩余限位轴450设置于两个滑动件420中的另一个上。或者，也可以部分弹簧431对应设置限位轴450，部分弹簧431不设置限位轴450。又或者，一个弹簧431可以对应设置两个限位轴450，其中，两个限位轴450分别固定于两个滑动件420上，即弹簧431的两端分别套设于两个限位轴450上，且两个限位轴450之间沿Y轴方向间隔分布。因此，本申请实施例对于限位轴450与弹簧431之间的对应关系不作特殊限定。
另外，上述弹簧431可以采用常规的螺旋弹簧，且该弹簧431的螺旋线的截面可以为圆形，请参阅图21和图22，图21为本申请实施例提供的一种弹簧431的结构图，图22为图21的立体图。或者，上述弹簧431的螺旋线的截面也可以为方形，请参阅 图23和图24，图23为本申请实施例提供的另一种弹簧431的结构图，图24为图23的立体图。又或者，上述弹簧的螺旋线的截面也可以为正多边形以及其他形状。因此，本申请实施例对此不作特殊限定。
在另一些实施例中，上述弹性件430也可以采用异形弹簧，该异形弹簧为自身不规则的结构。例如，异形弹簧可以为变径螺旋弹簧、波形弹簧以及片弹簧432等。
示例性地，请参阅图25和图26，图25为本申请实施例提供的一种片弹簧432的结构图，图26为本申请实施例提供的又一种转轴机构23(弹性件430为图25提供的片弹簧432)的结构图，上述异形弹簧为片弹簧432，片弹簧432的表面所在的平面平行于摆臂300的滑动方向和转动轴线，即片弹簧432的表面平行XY平面。片弹簧432上开设有多个镂空结构432a，多个镂空结构432a的至少部分区域沿平行于摆臂300的转动轴线的方向分布，即多个镂空结构432a沿Y轴方向分布。
这样一来，由于多个镂空结构432a沿Y轴方向分布，因此，使片弹簧432能够沿Y轴方向被压缩。并且，由于片弹簧432沿平行于XY平面的方向设置，且通过多个镂空结构432a使其能够沿Y轴方向被压缩，即通过控制镂空结构432a的大小，即可控制该片弹簧432能够产生的弹性力，因此，能够减小片弹簧432沿Z轴方向的尺寸，即可以减小片弹簧432的厚度尺寸，从而更加有利于终端的薄型化。
请继续参阅图25和图26，该片弹簧432在XY平面内以近似“S”型的方向弯折延伸，从而在片弹簧432上形成多个沿X方向延伸，且沿Y轴方向分布的镂空结构432a。当该片弹簧432被压缩时，镂空结构432a的间隙减小，以使片弹簧432产生弹性力。
请参阅图27，图27为本申请实施例提供的另一种片弹簧432的结构图，该片弹簧432与图25所示的结构相似，区别在于镂空结构432a的间隙沿X轴方向逐渐变化，其作用与上述相同，因此，不作重复描述。
请参阅图28，图28为本申请实施例提供的又一种片弹簧432的结构图，该片弹簧432可以包括多个子区域432b，每个子区域432b上具有一个沿X轴方向延伸的镂空结构432a，且相邻的两个子区域432b相互固定连接形成一体结构，且该连接点位于子区域432b沿X轴方向的中点处。当该片弹簧432沿Y轴方向被压缩时，镂空结构432a相互靠近，相邻的两个子区域432b的端部(沿X轴方向的端部)相互分离，即片弹簧432发生弹性形变，从而能够产生弹性力。
请参阅图29，图29为本申请实施例提供的又一种片弹簧432的结构图，该片弹簧432与图28所示的结构相似，区别在于相邻的两个子区域432b的镂空结构432a，在连接点处相互连通。这样一来，当片弹簧432沿Y轴方向被压缩时，相邻的两个子区域432b的连接点可以沿X轴方向相互分离，使片弹簧432能够发生较大的弹性形变，即能够产生较大的弹性力。
请参阅图30，图30为本申请实施例提供的又一种片弹簧432的结构图，该片弹簧432与图所示的结构相似，区别在于每个子区域432b的两端形成近似直角结构，其作用与上述相同，因此，不作重复描述。
请参阅图31，图31为本申请实施例提供的又一种片弹簧432的结构图，该片弹簧432与图28所示的结构相似，区别在于镂空结构432a的间隙沿X轴方向由中间向 两端之间减小。这样一来，当片弹簧432沿Y轴方向被压缩时，镂空结构432a的间隙较大，使片弹簧432能够发生较大的弹性形变，即能够产生较大的弹性力。
请参阅图32，图32为本申请实施例提供的又一种片弹簧432的结构图，该片弹簧432与图31所示的结构相似，区别在于相邻两个子区域432b的镂空结构432a，在连接点处相互连通。这样一来，当片弹簧432沿Y轴方向被压缩时，相邻两个子区域432b的连接点可以沿X轴方向相互分离，使片弹簧432能够发生更大的弹性形变，即能够产生更大的弹性力。
请参阅图33，图33为本申请实施例提供的又一种片弹簧432的结构图，该片弹簧432可以包括两端的抵接部432c和位于两个抵接部432c之间的多个第一弹性部432d和多个第二弹性部432e，第一弹性部432d和第二弹性部432e在XY平面内的垂直投影均为弧形结构，且二者沿Y轴方形对称设置，第一弹性部432d和第二弹性部432e之间、相邻的第一弹性部432d之间以及相邻的第二弹性部432e之间均具有上述镂空结构432a。当片弹簧432沿Y轴方向被压缩时，两个抵接部432c相互靠近，第一弹性部432d和第二弹性部432e的中间区域相互远离，即第一弹性部432d和第二弹性部432e均被进一步弯折，发生弹性形变，从而能够产生弹性力。
请参阅图34，图34为本申请实施例提供的又一种片弹簧432的结构图，该片弹簧432在XY平面内，由中点处向外螺旋延伸形成螺旋结构，该片弹簧432可以将中点处固定于摆臂300上。这样一来，当片弹簧432沿Y轴方向被压缩时，沿Y轴方向分布的螺旋间隙(即镂空结构432a)减小，发生弹性形变，从而能够产生弹性力。
在本说明书的描述中，具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (18)

  1. 一种转轴机构，其特征在于，包括：
    中梁；
    门板，所述门板能够相对于所述中梁转动；
    摆臂，设置于所述中梁与所述门板之间，所述摆臂的第一端与所述中梁转动连接，所述摆臂的第二端与所述门板滑动连接；所述摆臂带动所述门板相对于所述中梁转动的过程中，所述摆臂与所述门板相对滑动；
    阻尼组件，设置于所述门板与所述摆臂之间，所述阻尼组件包括凸轮结构、滑动件以及弹性件；在所述门板与所述摆臂相对滑动的过程中，所述凸轮结构能够推动所述滑动件沿所述摆臂的转动轴线滑动，以压缩所述弹性件，并产生阻尼力。
  2. 根据权利要求1所述的转轴机构，其特征在于，所述滑动件滑动设置于所述摆臂上，所述滑动件相对于所述摆臂滑动的滑动方向与所述摆臂的转动轴线平行，所述凸轮结构设置于所述门板与所述滑动件之间。
  3. 根据权利要求2所述的转轴机构，其特征在于，所述凸轮结构包括凸台和滚子，所述凸台和所述滚子中的一个设置于所述门板上，所述凸台和所述滚子中的另一个设置于所述滑动件上；在所述摆臂与所述门板相对滑动的过程中，所述凸台和所述滚子抵接，且沿平行于所述摆臂的转动轴线的方向相对运动，以使所述滑动件沿平行于所述摆臂的转动轴线的方向滑动。
  4. 根据权利要求3所述的转轴机构，其特征在于，所述滚子转动连接于所述滑动件或所述门板上，所述滚子的转动轴线与所述滑动件的滑动方向垂直，且所述滚子的转动轴线与所述摆臂的滑动方向垂直。
  5. 根据权利要求3所述的转轴机构，其特征在于，所述凸台上沿所述摆臂的滑动方向分布的两侧壁均形成导向斜面，在所述门板与所述摆臂相对滑动的过程中，所述滚子沿所述导向斜面滑动，以使所述滑动件沿平行于所述摆臂的转动轴线的方向滑动。
  6. 根据权利要求1～5任一项所述的转轴机构，其特征在于，所述摆臂上设置有容纳槽，滑动件和所述弹性件均设置于所述容纳槽，且所述滑动件与所述弹性件沿平行于所述摆臂的转动轴线的方向分布。
  7. 根据权利要求6所述的转轴机构，其特征在于，所述滑动件设置有两个，且所述弹性件设置于两个所述滑动件之间，每个所述滑动件与所述门板之间均设置有所述凸轮结构；在所述摆臂与所述门板相对滑动的过程中，两个所述滑动件的运动方向相反。
  8. 根据权利要求6所述的转轴机构，其特征在于，所述转轴机构还包括盖板，所述盖板设置于所述摆臂上，所述滑动件和所述弹性件均设置于所述容纳槽的底面与所述盖板之间。
  9. 根据权利要求6所述的转轴机构，其特征在于，所述容纳槽的侧壁上开设有缺口，所述滑动件与所述凸轮结构通过所述缺口接触。
  10. 根据权利要求1～9任一项所述的转轴机构，其特征在于，所述弹性件为弹簧，所述弹簧的轴线与所述摆臂的转动轴线平行。
  11. 根据权利要求10所述的转轴机构，其特征在于，所述弹簧设置有多个，多个 所述弹簧沿所述摆臂的滑动方向分布，且多个所述弹簧的轴线相互平行。
  12. 根据权利要求10或11所述的转轴机构，其特征在于，所述阻尼组件还包括限位轴，所述弹簧套设于所述限位轴上，所述限位轴相对于所述滑动件固定。
  13. 根据权利要求1～9任一项所述的转轴机构，其特征在于，所述弹性件为异形弹簧，所述异形弹簧的压缩方向平行于所述摆臂的转动轴线。
  14. 根据权利要求13所述的转轴机构，其特征在于，所述异形弹簧包括片弹簧，所述片弹簧的表面所在的平面平行于所述摆臂的转动轴线和滑动方向，所述片弹簧上开设有多个镂空结构，多个所述镂空结构的至少部分区域沿平行于所述摆臂的转动轴线的方向分布。
  15. 根据权利要求1～14任一项所述的转轴机构，其特征在于，所述门板上开设有滑槽，所述摆臂的第二端伸入所述滑槽内，所述凸轮结构设置于所述滑槽的侧壁与所述滑动件之间。
  16. 根据权利要求15所述的转轴机构，其特征在于，所述门板包括板本体和连接块，所述板本体与所述连接块连接，所述滑槽开设于所述连接块上。
  17. 一种支撑装置，其特征在于，包括第一壳体、第二壳体以及权利要求1～16任一项所述的转轴机构，所述转轴机构的中梁两侧均设置有门板，所述第一壳体和所述第二壳体分别与所述中梁两侧的所述门板固定连接。
  18. 一种折叠屏终端，其特征在于：
    折叠屏，包括第一部分、第二部分以及第三部分，所述第三部分位于所述第一部分和所述第二部分之间；
    支撑装置，为权利要求17所述的支撑装置，所述第一部分固定于所述第一壳体上，所述第二部分固定于所述第二壳体上，所述第三部分设置于所述转轴机构上。
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