WO2024199159A1 - 一种铰链机构和电子设备 - Google Patents

一种铰链机构和电子设备 Download PDF

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Publication number
WO2024199159A1
WO2024199159A1 PCT/CN2024/083441 CN2024083441W WO2024199159A1 WO 2024199159 A1 WO2024199159 A1 WO 2024199159A1 CN 2024083441 W CN2024083441 W CN 2024083441W WO 2024199159 A1 WO2024199159 A1 WO 2024199159A1
Authority
WO
WIPO (PCT)
Prior art keywords
spring
rotating shaft
cam structure
friction plate
cam
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.)
Ceased
Application number
PCT/CN2024/083441
Other languages
English (en)
French (fr)
Inventor
周龙
周帅宇
曾文辉
谭玉锋
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.)
Vivo Mobile Communication Co Ltd
Original Assignee
Vivo Mobile Communication 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 Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Publication of WO2024199159A1 publication Critical patent/WO2024199159A1/zh
Anticipated expiration legal-status Critical
Ceased 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
    • F16C11/103—Arrangements for locking frictionally clamped
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681—Details related solely to hinges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • H04M1/022—The hinge comprising two parallel pivoting axes
    • 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
    • H05K5/0217—Mechanical details of casings
    • H05K5/0226—Hinges

Definitions

  • the present application belongs to the field of communication technology, and specifically relates to a hinge mechanism and an electronic device.
  • foldable electronic devices As users pursue the ultimate user experience, the functions of electronic devices such as mobile phones and tablets are becoming more and more abundant. Foldable electronic devices have attracted widespread attention from users because they can take into account a large display area and a small storage volume. In practical applications, foldable electronic devices are usually provided with a hinge mechanism to achieve switching between an unfolded state and a folded state by rotating the hinge mechanism.
  • the hinge mechanism since the hinge mechanism is responsible for the folding movement of the foldable electronic device and needs to realize the hovering function, a complex damping structure needs to be set in the hinge mechanism, and the layout of the damping structure is relatively scattered, so the volume of the damping structure is usually large. In this way, not only is it easy to increase the overall thickness of the hinge mechanism, which is not conducive to the thin and light design of the electronic device, but also, since the damping structure occupies a large volume in the hinge mechanism, it is not conducive to the layout of the components inside the hinge mechanism.
  • the present application aims to provide a hinge mechanism and an electronic device to solve the problem that the damping structure in the existing hinge mechanism is complex in structure, occupies a large volume, and is not conducive to the layout of devices inside the hinge mechanism.
  • the present application discloses a hinge mechanism, comprising: a spindle assembly, a first bracket, a second bracket and a damping assembly, wherein the first bracket and the second bracket are rotatably connected through the spindle assembly, and the damping assembly is arranged on one side of the spindle assembly to limit the rotation of the spindle assembly;
  • the spindle assembly comprises a first rotating shaft, a first cam structure and a second cam structure, wherein the first cam structure and the second cam structure are arranged on the first rotating shaft and rotate along with the first rotating shaft;
  • the damping assembly comprises a first spring, a first cam member, a second cam member, a first friction plate and a second spring; the first cam member is connected with the first cam structure, and the first cam member is sandwiched between the first spring and the first cam structure; the second cam member is connected with the second cam structure, and the second cam member is sandwiched between the second spring and the second cam structure, and the first friction plate is sandwiched between the second spring and the main shaft assembly;
  • the first rotating shaft is rotated, and the first spring limits the rotation of the first cam structure through the first cam member.
  • the second cam structure rotates with the first rotating shaft to push the second cam member to squeeze the second spring.
  • the squeezed second spring causes the first friction plate to press against the main shaft assembly to limit the rotation of the main shaft assembly.
  • rotating the first rotating shaft causes the hinge mechanism to switch between a first state and a second state
  • the convex portion of the first cam member abuts against the convex portion of the first cam structure, and the first spring causes the first cam member to press the first cam structure to limit the rotation of the first cam structure;
  • the convex portion of the second cam structure abuts against the convex portion of the second cam member, and the second spring is pressed to cause the first friction plate to abut against the main shaft assembly to limit the rotation of the main shaft assembly;
  • the first spring pushes the convex portion of the first cam member to abut against the concave portion of the first cam structure to limit the rotation of the first cam structure; the convex portion of the second cam structure abuts against the concave portion of the second cam member, and the second spring presses the second cam member and the second cam structure to limit the rotation of the second cam structure.
  • the hinge mechanism further comprises a friction seat, wherein the friction seat is arranged opposite to the first friction plate, one of the first friction plate and the friction seat rotates with the first rotating shaft, and the other of the first friction plate and the friction seat is non-rotatingly sleeved on the first rotating shaft.
  • the first friction plate is sleeved on the first rotating shaft, and the first friction plate rotates synchronously with the first rotating shaft;
  • the second spring causes the friction surface of the first friction plate to press tightly against the friction seat, thereby limiting the rotation of the first friction plate through the friction force between the first friction plate and the friction seat, thereby limiting the rotation of the first rotating shaft.
  • the first friction plate is provided with a mounting through hole, and the first rotating shaft passes through the mounting through hole;
  • the aperture of at least a portion of the inner wall surface of the mounting through hole first increases and then decreases; the outer circumferential size of the first rotating shaft matches the mounting through hole to limit the rotation of the first friction plate relative to the first rotating shaft.
  • the first spring, the first cam member, the first cam structure, the second cam structure, the second cam member, the second spring and the first friction plate are sequentially sleeved on the first rotating shaft, with the convex portion of the first cam structure facing the first spring and the convex portion of the second cam structure facing the second spring.
  • the spindle assembly further comprises a first synchronous swing arm, the first synchronous swing arm is arranged on the first rotating shaft and rotates with the first rotating shaft, the first synchronous swing arm is connected to the first bracket, and the first cam structure and the second cam structure are arranged on opposite sides of the first synchronous swing arm;
  • the rotation of the first synchronous swing arm drives the first rotating shaft and the first cam structure and the second cam structure on both sides of the synchronous swing arm to rotate;
  • the first rotating shaft has a first portion and a second portion, the first portion and the second portion are arranged along an extending direction of the first rotating shaft, and at least one surface of the first portion protrudes from the second portion.
  • the spindle assembly further includes a second rotating shaft, a third cam structure and a fourth cam structure, wherein the third The cam structure and the fourth cam structure are arranged on the second rotating shaft and rotate along with the second rotating shaft;
  • the damping assembly further comprises a third spring, a third cam member, a fourth cam member, a second friction plate and a fourth spring;
  • the third cam member is connected with the third cam structure, and the third cam member is sandwiched between the third spring and the third cam structure;
  • the fourth cam member is connected with the fourth cam structure, and the fourth cam member is sandwiched between the fourth spring and the fourth cam structure, and the second friction plate is sandwiched between the fourth spring and the main shaft assembly;
  • the first rotating shaft is connected to the first bracket, and the second rotating shaft is connected to the second bracket.
  • it further comprises a friction seat, wherein the friction seat is provided with a first through hole and a second through hole, the first rotating shaft passes through the first through hole, the second rotating shaft passes through the second through hole, and the friction seat is arranged opposite to the first friction plate and the second friction plate;
  • the second spring causes the friction surface of the first friction plate to press against the friction seat
  • the fourth spring causes the friction surface of the second friction plate to press against the friction seat
  • the relative rotation between the first bracket and the second bracket is limited by the friction force between the first friction plate, the second friction plate and the friction seat.
  • a spring seat is provided between the second spring and the first friction plate, one end of the second spring is connected to the second cam member, the other end of the second spring is connected to the spring seat, and the end surface of the spring seat is against the end surface of the first friction plate.
  • it further includes a fixed seat, the damping assembly is arranged on the fixed seat, the first rotating shaft is rotatably passed through the fixed seat, one end of the first spring is connected to the fixed seat, and the other end of the first spring is connected to the first cam member.
  • the main shaft assembly further includes: a fifth spring, a sixth spring, a first synchronous gear and a second synchronous gear, the second synchronous gear is meshed with the first synchronous gear, a first synchronous gear shaft is provided on the first synchronous gear, and a second synchronous gear shaft is provided on the first synchronous gear;
  • the fifth spring is sleeved on the first synchronous gear shaft
  • the sixth spring is sleeved on the second synchronous gear shaft.
  • the present application further discloses an electronic device, the electronic device comprising any one of the hinge mechanisms described above.
  • the first spring of the damping assembly can limit the rotation of the first cam structure through the first cam member, and the second cam structure rotates with the first rotating shaft to push the second cam member to squeeze the second spring, and the squeezed second spring causes the first friction plate to press against the main shaft assembly to limit the rotation of the main shaft assembly. That is, the damping assembly can provide a larger damping force through the technical solution of double-group cams + double-group springs + friction plates, thereby improving the hovering stability of the hinge mechanism.
  • the damping assembly is arranged on one side of the main shaft assembly, the integration degree of the damping assembly is high, the layout is relatively compact, and the volume of the damping assembly is also small, which is conducive to reducing the overall thickness of the hinge mechanism and facilitating the lightweight design of the electronic device. Moreover, since the damping assembly is arranged on one side of the main shaft assembly, it occupies a smaller volume in the hinge mechanism, which is conducive to the other side of the main shaft assembly. The layout of other mechanical components or electronic devices is beneficial to the layout of devices inside the hinge mechanism.
  • FIG1 is a schematic diagram of an exploded structure of a hinge mechanism according to an embodiment of the present application.
  • FIG2 is a schematic diagram of an assembly structure of a hinge mechanism according to an embodiment of the present application.
  • FIG3 is a schematic structural diagram of a first rotating shaft according to an embodiment of the present application.
  • FIG4 is a schematic structural diagram of a first friction plate according to an embodiment of the present application.
  • FIG5 is a schematic structural diagram of a first synchronous swing arm according to an embodiment of the present application.
  • first or “second” in the specification and claims of this application may include one or more of the features explicitly or implicitly.
  • plural means two or more.
  • and/or in the specification and claims means at least one of the connected objects, and the character “/” generally means that the objects connected before and after are in an “or” relationship.
  • the terms “installed”, “connected”, and “connected” should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components.
  • installed should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components.
  • the embodiment of the present application provides a hinge mechanism, which can be used in a foldable electronic device.
  • the electronic device may include but is not limited to at least one of a mobile phone, a tablet computer, and a wearable device.
  • the embodiment of the present application does not limit the specific type of the electronic device.
  • the spindle assembly may specifically include a first rotating shaft 135, a first cam structure 1441 and a second cam structure 1442, wherein the first cam structure 1441 and the second cam structure 1442 are disposed on the first rotating shaft 135 and rotate along with the first rotating shaft 135;
  • the damping assembly may include a first spring 148, a first cam member 1443, a second cam member 1444 and a first friction plate 146;
  • the first cam member 1443 is cooperatively connected with the first cam structure 1441, and the first cam member 1443 is sandwiched between the first spring 148 and the first cam structure 1441;
  • the second cam member 1444 is sandwiched between the second cam member 1444 and the first friction plate 146;
  • the cam structure 1442 is connected in a cooperative manner, the second cam member 1444 is clamped between the second spring 142 and the second cam structure 1442, and the first friction plate 148 is clamped between the second spring 142 and the main shaft assembly; the first rotating shaft 135 is rotated, the first spring
  • the first spring 148 of the damping assembly can limit the rotation of the first cam structure 1441 through the first cam member 1443, and the second cam structure 1442 rotates with the first rotating shaft 135 to push the second cam member 1444 to squeeze the second spring 142.
  • the squeezed second spring 142 causes the first friction plate 148 to press against the main shaft assembly to limit the rotation of the main shaft assembly. That is, the damping assembly can increase the torque output by the hinge through the technical solution of double-group cams + double-group springs + friction plates, provide a larger damping force, and thus improve the hovering stability of the hinge mechanism.
  • the damping assembly is arranged on one side of the main shaft assembly, the integration degree of the damping assembly is high, the layout is compact, and the volume of the damping assembly is small, which is beneficial to reducing the overall thickness of the hinge mechanism and is beneficial to the lightweight design of electronic equipment.
  • the The damping assembly is arranged on one side of the main shaft assembly and occupies a small volume in the hinge mechanism, which is conducive to saving space to achieve a miniaturized design of the hinge mechanism.
  • the foldable electronic device generally includes a first body and a second body that can be folded relative to each other.
  • the hinge mechanism described in the embodiment of the present application can be arranged between the first body and the second body to achieve the folding and hovering of the first body and the second body.
  • the first bracket 10 in the hinge mechanism can be connected to the middle frame on the first body
  • the second bracket 11 in the hinge mechanism can be connected to the middle frame of the second body.
  • the first bracket 10 and/or the second bracket 11 can be driven to rotate by the rotation of the main shaft assembly, and the first body and the second body can be unfolded or folded.
  • the first bracket 10 and the second bracket 11 can be hovered.
  • rotating the first rotating shaft 135 can switch the hinge mechanism between the first state and the second state; when the hinge mechanism is in the first state, the convex portion of the first cam member 1443 abuts against the convex portion of the first cam structure 1441, and at this time, the first cam structure 1441 drives the first cam member 1443 to rotate toward the first spring 148 to compress the first spring 148.
  • the first spring 148 can press the first cam member 1443 against the first cam structure 1441 to limit the rotation of the first cam structure 1441, thereby generating a partial damping force that limits the rotation of the first rotating shaft 135.
  • the convex portion of the second cam structure 1442 abuts against the convex portion of the second cam member 1444, and at this time, the second cam structure 1442 drives the second cam member 1444 to move toward the second spring 142 to compress the second spring 142. Accordingly, when the second spring 142 is compressed, the compressed second spring 142 causes the first friction plate 148 to abut against the main shaft assembly to generate another part of the damping force for limiting the rotation of the main shaft assembly. That is, in the first state, the damping assembly can provide damping force through the technical solution of double-group cams + double-group springs + friction plates to improve the user's hand feeling when unfolding the hinge mechanism.
  • an external force can be applied to the first bracket or the second bracket to drive the main shaft assembly to rotate through the first bracket or the second bracket, thereby switching from the first state to the second state.
  • the first spring 148 pushes the convex part of the first cam member 1443 against the concave part of the first cam structure 1441 to limit the rotation of the first cam structure 1442, the convex part of the second cam structure 1442 against the concave part of the second cam member 1444, the second spring 142 presses the second cam member 1444 against the second cam structure 1442 to limit the rotation of the second cam structure 1442, and the hinge mechanism is suspended so that the first bracket 10 and the second bracket 11 can be maintained at the current folding angle.
  • the damping assembly can output a large torque through the double group of cams + double group of springs + friction plates, so that the hinge mechanism can be reliably maintained in the second state without external force, ensuring that the angle between the first bracket and the second bracket remains unchanged, thereby improving the hovering stability of the hinge mechanism.
  • the user When the user needs to continue to change the unfolding angle of the hinge mechanism, the user applies external force to the first bracket or the second bracket again, and the first bracket or the second bracket drives the first rotating shaft and the second rotating shaft to rotate relative to each other, thereby switching from the second state to the first state.
  • the hinge mechanism can be repeatedly switched between the first state and the second state by continuously rotating the first bracket or the second bracket, so as to realize the flattening and folding of the hinge mechanism.
  • the hinge mechanism may further include a friction seat 1410, the friction seat 1410 is arranged opposite to the first friction plate 146, one of the first friction plate 146 and the friction seat 1410 rotates with the first rotating shaft 135, and the other of the first friction plate 146 and the friction seat 1410 is non-rotatably sleeved on the first rotating shaft 135.
  • the first friction plate 146 can be fixed on the first rotating shaft 135 so that the first friction plate 146 can rotate with the first rotating shaft 135, and the friction holder 1410 is non-rotatably sleeved outside the first rotating shaft 135.
  • the friction holder 1410 is fixed on the first rotating shaft 135 so that the friction holder 1410 can rotate with the first rotating shaft 135, and the first friction plate 146 is non-rotatably sleeved outside the first rotating shaft 135.
  • the embodiment of the present application does not specifically limit the connection method between the first rotating shaft 135, the first friction plate 146, and the friction holder 1410.
  • the first friction plate 146 is sleeved on the first rotating shaft 135, and the first friction plate 146 rotates synchronously with the first rotating shaft 135; in the process of rotating the first rotating shaft 135 to make the first friction plate 146 rotate relative to the friction seat 1410, the second spring 142 can make the friction surface of the first friction plate 146 tightly press against the friction seat 1410, and the friction force between the first friction plate 146 and the friction seat 1410 limits the rotation of the first friction plate 146, thereby limiting the rotation of the first rotating shaft 135.
  • the second spring 142 can be compressed by the second cam member 1444 to generate elastic force, so that the friction surface of the first friction plate 146 is pressed against the friction seat 1410, so that a large friction force is generated between the first friction plate 146 and the friction seat 1410 to limit the rotation of the first friction plate 146. Since the first friction plate 146 is sleeved outside the first rotating shaft 135, when the rotation of the first friction plate 146 is limited, the rotation of the first rotating shaft 135 can be limited accordingly, so that the hinge mechanism can be folded or suspended.
  • FIG. 3 a schematic diagram of the structure of a first rotating shaft according to an embodiment of the present application is shown, and referring to FIG. 4 , a schematic diagram of the structure of a first friction plate according to an embodiment of the present application is shown. As shown in FIG. 4 ,
  • the first friction plate 146 is provided with a mounting through hole 1461, and the first rotating shaft 135 passes through the mounting through hole 1461.
  • the aperture of at least a portion of the inner wall surface of the mounting through hole 1461 increases first and then decreases.
  • the outer circumference size of the first rotating shaft 135 matches the mounting through hole 1461 to limit the rotation of the first friction plate 146 relative to the first rotating shaft 135. In this way, during the rotation of the first rotating shaft 135, the first friction plate 146 can be driven to rotate along with the first rotating shaft 135.
  • the first rotating shaft 135 and the mounting through hole 1461 can be interlocked to prevent the first friction plate 146 from rotating relative to the first rotating shaft 135.
  • the diameter of at least a portion of the inner wall surface of the mounting through hole 1460 increases first and then decreases, so as to form a cross-sectional
  • the mounting hole is waist-shaped or strip-shaped, so that the mounting hole with a circular cross-section can be avoided, thereby avoiding relative rotation between the first friction plate 146 and the first rotating shaft 135.
  • the first spring 148, the first cam member 1443, the first cam structure 1441, the second cam structure 1442, the second cam member 1444, the second spring 142 and the first friction plate 146 are sequentially sleeved on the first rotating shaft 135, with the convex portion of the first cam structure 1441 facing the first spring 148 and the convex portion of the second cam structure 1442 facing the second spring 142.
  • the convex portion of the first cam structure 1441 faces the first spring 148
  • the convex portion of the first cam structure 1441 is convenient for the convex portion of the first cam member 1443 to be matched and connected.
  • the convex portion of the second cam structure 1442 faces the second spring 142, so that the convex portion of the second cam structure 1442 is convenient for the convex portion of the second cam member 1442 to be matched and connected.
  • the spindle assembly may further include a first synchronous swing arm 131 , which is disposed on the first rotating shaft 135 and rotates along with the first rotating shaft 135 , and is connected to the first bracket 10 .
  • FIG5 a schematic diagram of the structure of a first synchronous swing arm according to an embodiment of the present application is shown.
  • the first cam structure 1441 and the second cam structure 1442 are arranged on opposite sides of the first synchronous swing arm 131.
  • the rotation of the first synchronous swing arm 134 drives the first rotating shaft 135 and the first cam structure 1441 and the second cam structure 1442 on both sides of the first synchronous swing arm 131 to rotate.
  • the first spring 148 and the second spring 142 can be deformed at the same time by the rotation of the first synchronous swing arm 131, thereby saving space and improving the synchronization of the damping assembly limiting the main shaft assembly from two opposite directions through two separated cam members.
  • the first rotating shaft 135 has a first portion 1351 and a second portion 1352 , the first portion 1351 and the second portion 1352 are arranged along an extending direction of the first rotating shaft 135 , and at least one surface of the first portion 1351 protrudes from the second portion 1352 .
  • the first synchronous swing arm 131 is movably connected to the first bracket 10, and when the first bracket 10 rotates, the first synchronous swing arm 131 can be driven to rotate.
  • the first cam structure 1441, the second cam structure 1442 and the first rotating shaft 135 can be fixedly connected to the first synchronous swing arm 131 to move with the first synchronous swing arm 131, and the first rotating shaft 135 can be fixedly connected to the first synchronous swing arm 131 through a retaining spring 137. As shown in FIG.
  • the length of the first portion 1351 is usually greater than the thickness of the first friction plate 146. In this way, not only the stability of the first friction plate 146 being sleeved on the first part 1351 can be improved, but also the processing of the first part 1351 can be facilitated.
  • the main shaft assembly also includes a second rotating shaft 136, a third cam structure 1451 and a fourth cam structure 1452, the third cam structure 1451 and the fourth cam structure 1452 are arranged on the second rotating shaft 136 and rotate with the second rotating shaft 136;
  • the damping assembly may also include a third spring 149, a third cam member 1453, a fourth cam member 1454, a second friction plate 147 and a fourth spring 143;
  • the third cam member 1453 is cooperated and connected with the third cam structure 1451, and the third cam member 1453 is clamped between the third spring 149 and the third cam structure 1451;
  • the fourth cam member 1454 is cooperated and connected with the fourth cam structure 1452, and the fourth cam member 1454 is clamped between the fourth spring 143 and the fourth cam structure 1452, and the second friction plate 147 is clamped between the fourth spring 143 and the main shaft assembly;
  • the first rotating shaft 135 is connected to the first bracket 10
  • the second rotating shaft 136 is connected to the second bracket
  • the second rotating shaft 136 is rotated, and the third spring 149 limits the rotation of the third cam structure 1451 through the third cam member 1453.
  • the fourth cam structure 1452 rotates with the second rotating shaft 136 to push the fourth cam member 1454 to squeeze the fourth spring 143.
  • the squeezed fourth spring 143 causes the second friction plate 147 to press against the main shaft assembly to limit the rotation of the main shaft assembly.
  • the working principles of the third cam structure 1451, the fourth cam structure 1452, the third spring 149, the third cam component 1453, the fourth cam component 1454, the second friction plate 14, and the fourth spring 143 are similar to the working principles of the first cam structure 1441, the second cam structure 1442, the first spring 148, the first cam component 1443, the second cam component 1444 and the first friction plate 146, and are not elaborated here.
  • the hinge mechanism also includes a friction seat 1410, which is provided with a first through hole and a second through hole, the first rotating shaft 135 passes through the first through hole, the second rotating shaft 136 passes through the second through hole, and the friction seat 1410 is arranged opposite to the first friction plate 146 and the second friction plate 147; the second spring 142 makes the friction surface of the first friction plate 146 tightly against the friction seat 1410, and the fourth spring 143 makes the friction surface of the second friction plate 147 tightly against the friction seat 1410, and the relative rotation between the first bracket 10 and the second bracket 11 is limited by the friction force between the first friction plate 146, the second friction plate 147 and the friction seat 1410.
  • the friction holder 1410 can cooperate with the first friction plate 146 and the second friction plate 147 at the same time, the operation of setting up two friction holders to correspond one-to-one with the first friction plate 146 and the second friction plate 147 is avoided, thereby simplifying the structure of the hinge mechanism.
  • interaction principle between the second friction plate 147 and the friction seat 1410 is similar to the interaction principle between the first friction plate 146 and the friction seat 1410 in the aforementioned embodiment, and will not be elaborated herein.
  • a spring seat 1413 is provided between the second spring 142 and the first friction plate 146, one end of the second spring 142 is connected to the second cam member 1444, the other end of the second spring 142 is connected to the spring seat 1413, and the end surface of the spring seat 1413 abuts against the end surface of the first friction plate 146.
  • the spring seat 1413 can be used to install the second spring 142 and transmit the elastic force of the second spring 142 to the first friction plate 146, so that the first friction plate 146 abuts against the spindle assembly.
  • the spring seat 1413 can also be located between the fourth spring 143 and the second friction plate 147.
  • the end surface of the seat 1413 can abut against the end surface of the second friction plate 147.
  • the spring seat 1413 can be used to install the fourth spring 143 and transmit the elastic force of the fourth spring 143 to the second friction plate 147, so that the second friction plate 147 can abut against the main shaft assembly.
  • the hinge mechanism may further include a fixing seat 141, the damping assembly is disposed on the fixing seat 141, the first rotating shaft 135 is rotatably disposed through the fixing seat 141, one end of the first spring 148 is connected to the fixing seat 141, and the other end of the first spring 148 is connected to the first cam member 1443.
  • the fixing seat 141 may be used to install and fix the first rotating shaft 135, the second rotating shaft 136, the first spring 148, the second spring 142, the third spring 149, and the fourth spring 143.
  • the fixing seat 141 may be provided with a first accommodating space and a second accommodating space spaced apart from each other, the first rotating shaft 135 and the second rotating shaft 136 may be respectively passed through the first accommodating space and the second accommodating space, the first spring 148 and the third spring 149 may be installed in the first accommodating space, and the second spring 142 and the fourth spring 143 may be installed in the second accommodating space.
  • the main shaft assembly further includes: a fifth spring 1411, a sixth spring 1412, a first synchronous gear 133 and a second synchronous gear 134, the second synchronous gear 134 is meshed with the first synchronous gear 133, a first synchronous gear shaft 1331 is provided on the first synchronous gear 133, and a second synchronous gear shaft 1341 is provided on the first synchronous gear 133; the fifth spring 1411 is sleeved on the first synchronous gear shaft 1331, and the sixth spring 1412 is sleeved on the second synchronous gear shaft 1341.
  • the fifth spring 1411 and the sixth spring 1412 can be arranged in parallel with the second spring 142 and the fourth spring 143, and the fifth spring 1411 and the sixth spring 1412 can be used to provide a damping force that partially limits the rotation of the main shaft assembly.
  • the second main shaft 136 may include a third part 1361 and a fourth part 1362 , wherein the third part 1361 and the fourth part 1362 have the same structure and working principle as the first part 1351 and the second part 1352 in the first main shaft 135 , which will not be elaborated herein.
  • the main shaft assembly may further include a second synchronous swing arm 132, the first synchronous swing arm 131 is movably connected to the first bracket 10, the second synchronous swing arm 132 is movably connected to the second bracket 11, the first synchronous swing arm 131 is provided with a first gear 1311, the first gear 1311 is meshed with the first synchronous gear 133, the second synchronous swing arm 132 is provided with a second gear 1321, the second gear 1321 is meshed with the second synchronous gear 134, the first synchronous gear 133 is meshed with the second synchronous gear 134 to realize the synchronous movement of the first synchronous swing arm 131 and the second swing arm, and the synchronous movement of the first bracket 10 and the second bracket 11 is realized through the synchronous movement of the first synchronous swing arm 131 and the second synchronous swing arm 132.
  • the spindle assembly may further include a virtual swing arm 121 and a virtual swing arm shaft 122, wherein the virtual swing arm shaft 122 is movably connected to the virtual swing arm 121.
  • the first bracket 10 and the second bracket 11 may be rotatably connected to the virtual swing arm shaft 122, and the first bracket 10 and the second bracket 11 may be rotated relative to each other by rotating the first bracket 10 and the second bracket 11 around the virtual swing arm shaft 122.
  • the hinge mechanism described in the embodiment of the present application can at least include the following advantages:
  • the damping component can limit the rotation of the first cam structure through the first cam member, and the second cam structure rotates with the first rotating shaft to push the second cam member to squeeze the second spring.
  • the squeezed second spring makes the first friction plate close to the main shaft assembly to limit the rotation of the main shaft assembly. That is, the damping assembly can provide a larger damping force through the technical solution of double-group cam + double-group spring + friction plate, thereby improving the hovering stability of the hinge mechanism.
  • the damping assembly is arranged on one side of the main shaft assembly, the integration degree of the damping assembly is high, the layout is relatively compact, and the volume of the damping assembly is also small, which is conducive to reducing the overall thickness of the hinge mechanism and facilitating the lightweight design of electronic equipment. Moreover, since the damping assembly is arranged on one side of the main shaft assembly, the volume occupied in the hinge mechanism is small, which is conducive to the layout of other mechanical components or electronic devices on the other side of the main shaft assembly, and is conducive to the device layout inside the hinge mechanism.
  • the embodiment of the present application also provides an electronic device, and the electronic device may specifically include the hinge mechanism described in any of the above embodiments.
  • the electronic device may be a foldable electronic device, and the foldable electronic device may include a first body and a second body that can be folded relative to each other.
  • the hinge mechanism described in the embodiment of the present application may be arranged between the first body and the second body to achieve the folding and hovering of the first body and the second body.
  • first bracket in the hinge mechanism may be connected to the middle frame on the first body
  • second bracket in the hinge mechanism may be connected to the middle frame of the second body, so that the first bracket and/or the second bracket can be driven to rotate by the rotation of the main shaft assembly, and the first body and the second body can be unfolded or folded, and the first bracket and the second bracket can be hovered by limiting the rotation of the main shaft assembly by the damping assembly.
  • the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative work.
  • one embodiment means that a particular feature, structure or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present application.
  • examples of the term “in one embodiment” here do not necessarily all refer to the same embodiment.
  • any reference signs placed between parentheses shall not be construed as limiting the claim.
  • the word “comprising” does not exclude the presence of elements or steps not listed in the claim.
  • the word “a” or “an” preceding an element does not exclude the presence of a plurality of such elements.
  • the present application may be implemented by means of hardware comprising several distinct elements and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by one and the same item of hardware.
  • the use of the words first, second, third, etc. does not denote any These words can be interpreted as names.

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Abstract

提供了一种铰链机构和包括该铰链机构的电子设备。该铰链机构包括主轴组件、第一支架（10）、第二支架（11）和阻尼组件。第一支架和第二支架通过主轴组件转动连接，阻尼组件设于主轴组件两侧以用于限制主轴组件转动。主轴组件包括第一转轴（135）、第一凸轮结构（1441）和第二凸轮结构（1442），第一凸轮结构和第二凸轮结构设于第一转轴并随第一转轴转动。阻尼组件包括第一弹簧（148）、第一凸轮件（1443）、第二凸轮件（1444）、第一摩擦片（146）以及第二弹簧（142）。第一凸轮件与第一凸轮结构配合连接，第一凸轮件夹设于第一弹簧和第一凸轮结构之间。第二凸轮件与第二凸轮结构配合连接，第二凸轮件夹设于第二弹簧和第二凸轮结构之间，第一摩擦片夹设于第二弹簧和主轴组件之间。此铰链机构可以提供较大的阻尼力，提高铰链机构的悬停稳定性。

Description

一种铰链机构和电子设备
相关申请的交叉引用
本申请要求在2023年03月31日提交中国专利局、申请号为202310350098.2、名称为“一种铰链机构和电子设备”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
本申请属于通信技术领域，具体涉及一种铰链机构和电子设备。
背景技术
随着用户对于使用体验的极致追求，手机、平板电脑等电子设备的功能也越来越丰富。折叠式的电子设备由于可以兼顾较大的显示面积和较小的收纳体积，受到了用户的广泛关注。在实际应用中，折叠式电子设备中通常设置有铰链机构，以通过铰链机构的转动实现展开状态与折叠状态之间的切换。
相关技术中，由于铰链机构承担着折叠式电子设备中的折叠运动并需要实现悬停的功能，铰链机构中需要设置复杂的阻尼结构，且阻尼结构的布局较为分散，因此，阻尼结构的体积通常也较大。这样，不仅很容易增大所述铰链机构的整体厚度，不利于所述电子设备的轻薄化设计，而且，由于所述阻尼结构在所述铰链机构中占用的体积较大，不利于所述铰链机构内部的器件布局。
发明内容
本申请旨在提供一种铰链机构和电子设备，以解决现有的铰链机构中，阻尼结构的结构复杂、占用的体积较大，不利于所述铰链机构内部的器件布局的问题。
为了解决上述技术问题，本申请是这样实现的：
第一方面，本申请公开了一种铰链机构，包括：主轴组件、第一支架、第二支架和阻尼组件，所述第一支架和所述第二支架通过所述主轴组件转动连接，所述阻尼组件设于所述主轴组件一侧以用于限制所述主轴组件转动；
所述主轴组件包括第一转轴、第一凸轮结构和第二凸轮结构，所述第一凸轮结构和所述第二凸轮结构设于所述第一转轴并随所述第一转轴转动；
所述阻尼组件包括第一弹簧、第一凸轮件、第二凸轮件、第一摩擦片以及第二弹簧；所述第一凸轮件与所述第一凸轮结构配合连接，所述第一凸轮件夹设于所述第一弹簧和所述第一凸轮结构之间；所述第二凸轮件与所述第二凸轮结构配合连接，所述第二凸轮件夹设于所述第二弹簧和所述第二凸轮结构之间，所述第一摩擦片夹设于所述第二弹簧和所述主轴组件之间；
转动所述第一转轴，所述第一弹簧通过所述第一凸轮件限制所述第一凸轮结构转动，所述第二凸轮结构随所述第一转轴转动以推动所述第二凸轮件挤压所述第二弹簧，被挤压的所述第二弹簧使所述第一摩擦片与所述主轴组件紧抵以限制所述主轴组件的转动。
可选地，转动所述第一转轴使所述铰链机构在第一状态和第二状态之间切换；
所述铰链机构处于所述第一状态的情况下，所述第一凸轮件的凸部与所述第一凸轮结构的凸部相抵，所述第一弹簧使所述第一凸轮件压紧所述第一凸轮结构以限制所述第一凸轮结构转动；所述第二凸轮结构的凸部与所述第二凸轮件的凸部相抵，所述第二弹簧受挤压使所述第一摩擦片与所述主轴组件紧抵以限制所述主轴组件的转动；
所述铰链机构处于所述第二状态的情况下，所述第一弹簧推动所述第一凸轮件的凸部与所述第一凸轮结构的凹部相抵以限制所述第一凸轮结构的转动；所述第二凸轮结构的凸部与所述第二凸轮件的凹部相抵，所述第二弹簧将所述第二凸轮件与所述第二凸轮结构压紧以限制所述第二凸轮结构的转动。
可选地，所述铰链机构还包括摩擦卡座，所述摩擦卡座与所述第一摩擦片相对设置，所述第一摩擦片和所述摩擦卡座中的一个随所述第一转轴转动，所述第一摩擦片和所述摩擦卡座中的另一个非转动的套设于所述第一转轴。
可选地，其特征在于，所述第一摩擦片套设于所述第一转轴，所述第一摩擦片随所述第一转轴同步转动；
在转动所述第一转轴使所述第一摩擦片相对于所述摩擦卡座转动的过程中，所述第二弹簧使所述第一摩擦片的摩擦面与所述摩擦卡座紧抵，通过所述第一摩擦片和所述摩擦卡座之间的摩擦力限制所述第一摩擦片的转动，从而限制所述第一转轴转动。
可选地，所述第一摩擦片设置有安装通孔，所述第一转轴穿过所述安装通孔；
在垂直于所述第一转轴的轴向的横截面上，所述安装通孔的至少一部分内壁面的孔径先增大后减小；所述第一转轴的外周尺寸与所述安装通孔相匹配，以限制所述第一摩擦片相对于所述第一转轴转动。
可选地，所述第一弹簧、所述第一凸轮件、所述第一凸轮结构、所述第二凸轮结构、所述第二凸轮件、所述第二弹簧以及所述第一摩擦片依次套设于所述第一转轴，所述第一凸轮结构的凸部朝向所述第一弹簧，所述第二凸轮结构的凸部朝向所述第二弹簧。
可选地，所述主轴组件还包括第一同步摆臂，所述第一同步摆臂设于所述第一转轴并随所述第一转轴转动，所述第一同步摆臂与所述第一支架连接，所述第一凸轮结构和所述第二凸轮结构设于所述第一同步摆臂的相背离的两侧；
所述第一同步摆臂的转动带动所述第一转轴以及所述同步摆臂两侧的所述第一凸轮结构和所述第二凸轮结构转动；
所述第一转轴具有第一部分和第二部分，所述第一部分和所述第二部分沿所述第一转轴的延伸方向设置，所述第一部分的至少一个表面凸出于所述第二部分。
可选地，所述主轴组件还包括第二转轴、第三凸轮结构和第四凸轮结构，所述第三 凸轮结构和所述第四凸轮结构设于所述第二转轴并随所述第二转轴转动；
所述阻尼组件还包括第三弹簧、第三凸轮件、第四凸轮件、第二摩擦片以及第四弹簧；所述第三凸轮件与所述第三凸轮结构配合连接，所述第三凸轮件夹设于所述第三弹簧和所述第三凸轮结构之间；所述第四凸轮件与所述第四凸轮结构配合连接，所述第四凸轮件夹设于所述第四弹簧和所述第四凸轮结构之间，所述第二摩擦片夹设于所述第四弹簧和所述主轴组件之间；
所述第一转轴与所述第一支架连接，所述第二转轴与所述第二支架连接。
可选地，还包括摩擦卡座，所述摩擦卡座上开设有第一通孔和第二通孔，所述第一转轴穿过所述第一通孔，所述第二转轴穿过所述第二通孔，所述摩擦卡座与所述第一摩擦片和所述第二摩擦片相对设置；
所述第二弹簧使所述第一摩擦片的摩擦面与所述摩擦卡座紧抵，所述第四弹簧使所述第二摩擦片的摩擦面与所述摩擦卡座紧抵，通过所述第一摩擦片、所述第二摩擦片和所述摩擦卡座之间的摩擦力限制所述第一支架和所述第二支架之间的相对转动。
可选地，所述第二弹簧和所述第一摩擦片之间设有弹簧座，所述第二弹簧的一端与所述第二凸轮件连接，所述第二弹簧的另一端与所述弹簧座连接，所述弹簧座的端面与所述第一摩擦片的端面相抵。
可选地，还包括固定座，所述阻尼组件设于所述固定座，所述第一转轴可转动的穿设于所述固定座，所述第一弹簧的一端与所述固定座连接，所述第一弹簧的另一端与所述第一凸轮件连接。
可选地，所述主轴组件还包括：第五弹簧、第六弹簧、第一同步齿轮以及第二同步齿轮，第二同步齿轮与第一同步齿轮啮合，所述第一同步齿轮上设置有第一同步齿轮轴，所述第一同步齿轮上设置有第二同步齿轮轴；
所述第五弹簧套接在所述第一同步齿轮轴上，所述第六弹簧套设在所述第二同步齿轮轴上。
第二方面，本申请还公开了一种电子设备，所述电子设备包括上述任一项所述的铰链机构
本申请实施例中，在所述铰链机构的所述第一转轴转动的过程中，所述阻尼组件的所述第一弹簧可以通过所述第一凸轮件限制所述第一凸轮结构转动，所述第二凸轮结构随所述第一转轴转动以推动所述第二凸轮件挤压所述第二弹簧，被挤压的所述第二弹簧使所述第一摩擦片与所述主轴组件紧抵以限制所述主轴组件的转动。也即，所述阻尼组件可以通过双组凸轮+双组弹簧+摩擦片的技术方案来提供较大的阻尼力，提高的所述铰链机构的悬停稳定性。而且，由于所述阻尼组件设于所述主轴组件的一侧，所述阻尼组件的集成程度较高，布局较为紧凑，所述阻尼组件的体积也较小，有利于减小所述铰链机构的整体厚度，有利于电子设备的轻薄化设计。而且，由于所述阻尼组件设置在所述主轴组件的一侧，在所述铰链机构中占用的体积较小，有利于在主轴组件的另一侧进行 其他机械部件或者电子器件的布局，有利于所述铰链机构内部的器件布局。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，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是本申请实施例所述的一种铰链机构的分解结构示意图；
图2是本申请实施例所述的一种铰链机构的装配结构示意图；
图3是本申请实施例所述的一种第一转轴的结构示意图；
图4是本申请实施例所述的一种第一摩擦片的结构示意图；
图5是本申请实施例所述的一种第一同步摆臂的结构示意图；
附图标记：10－第一支架，11－第二支架，121－虚拟摆臂，122－虚拟摆臂轴，131－第一同步摆臂，1311－第一齿轮，132－第二同步摆臂，1321－第二齿轮，133－第一同步齿轮，1331－第一同步齿轮轴，134－第二同步齿轮，1341－第一同步齿轮轴，135－第一转轴，1351－第一部分，1352－第二部分，136－第二转轴，1361－第三部分，1362－第四部分，137－卡簧，141－固定座，142－第二弹簧，143－第四弹簧，1441－第一凸轮结构，1442－第二凸轮结构，1443－第一凸轮件，1444－第二凸轮件，1451－第三凸轮结构，1452－第四凸轮结构，1453－第三凸轮件，1454－第四凸轮件，146－第一摩擦片，1461－安装通孔，147－第二摩擦片，148－第一弹簧，149－第三弹簧，1410－摩擦卡座，1411－第五弹簧，1412－第六弹簧，1413－弹簧座。
具体实施例
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、 “宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”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申请和简化描述，而不是指示或暗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申请的限制。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
本申请实施例提供了一种铰链机构，所述铰链机构可以用于折叠式的电子设备。示例的，所述电子设备可以包括但不局限与手机、平板电脑以及可穿戴式设备中的至少一种，本申请实施例对于所述电子设备的具体类型可以不做限定。
参照图1，示出了本申请实施例所述的一种铰链机构的分解结构示意图，参照图2，示出了本申请实施例所述的一种铰链机构的装配结构示意图。如图1、图2所示，所述铰链机构具体可以包括：主轴组件、第一支架10、第二支架11和阻尼组件，第一支架10和第二支架11通过所述主轴组件转动连接，所述阻尼组件设于所述主轴组件一侧以用于限制所述主轴组件转动。所述主轴组件具体可以包括第一转轴135、第一凸轮结构1441和第二凸轮结构1442，第一凸轮结构1441和第二凸轮结构1442设于第一转轴135并随第一转轴135转动；所述阻尼组件可以包括第一弹簧148、第一凸轮件1443、第二凸轮件1444以及第一摩擦片146；第一凸轮件1443与第一凸轮结构1441配合连接，第一凸轮件1443夹设于第一弹簧148和第一凸轮结构1441之间；第二凸轮件1444与第二凸轮结构1442配合连接，第二凸轮件1444夹设于第二弹簧142和第二凸轮结构1442之间，第一摩擦片148夹设于第二弹簧142和所述主轴组件之间；转动第一转轴135，第一弹簧148可以通过第一凸轮件1443限制第一凸轮结构1441转动，第二凸轮结构1442随第一转轴135转动以推动第二凸轮件1444挤压第二弹簧142，被挤压的第二弹簧142使第一摩擦片148与所述主轴组件紧抵以限制所述主轴组件的转动。
本申请实施例中，在所述铰链机构的所述第一转轴转动的过程中，所述阻尼组件的第一弹簧148可以通过第一凸轮件1443限制第一凸轮结构1441转动，第二凸轮结构1442随第一转轴135转动以推动第二凸轮件1444挤压第二弹簧142，被挤压的第二弹簧142使第一摩擦片148与所述主轴组件紧抵以限制所述主轴组件的转动。也即，所述阻尼组件可以通过双组凸轮+双组弹簧+摩擦片的技术方案增加铰链输出的扭矩，提供较大的阻尼力，从而提高所述铰链机构的悬停稳定性。而且，由于所述阻尼组件设于所述主轴组件的一侧，所述阻尼组件的集成程度较高，布局较为紧凑，所述阻尼组件的体积也较小，有利于减小所述铰链机构的整体厚度，有利于电子设备的轻薄化设计。而且，由于所述 阻尼组件设置在所述主轴组件的一侧，在所述铰链机构中占用的体积较小，有利于节省空间以实现铰链机构的小型化设计，同时也有足够空间在主轴组件的另一侧进行其他机械部件或者电子器件的布局，有利于所述铰链机构内部的器件布局。
在具体的应用中，所述折叠式的电子设备通常包括可相对折叠第一本体和第二本体。本申请实施例所述的铰链机构可以设置在所述第一本体和所述第二本体之间，以实现所述第一本体和所述第二本体的折叠和悬停。具体的，所述铰链机构中的第一支架10可以与所述第一本体上的中框连接，所述铰链机构中的第二支架11可以与所述第二本体的中框连接，这样，通过所述主轴组件的转动，可以带动第一支架10和/或第二支架11转动，可以实现所述第一本体和所述第二本体的展开或者折叠，通过所述阻尼组件对所述主轴组件转动的限制，可以实现第一支架10和第二支架11的悬停。
本申请实施例中，转动第一转轴135可以使所述铰链机构在第一状态和第二状态之间切换；所述铰链机构处于所述第一状态的情况下，所述第一凸轮件1443的凸部与第一凸轮结构1441的凸部相抵，此时，第一凸轮结构1441会驱动第一凸轮件1443朝向第一弹簧148转动，以压缩第一弹簧148。在第一弹簧148受到压缩的情况下，第一弹簧148能够将第一凸轮件1443压紧于第一凸轮结构1441以限制第一凸轮结构1441转动，产生限制第一转轴135转动的部分阻尼力。第二凸轮结构1442的凸部与第二凸轮件1444的凸部相抵，此时，第二凸轮结构1442会驱动第二凸轮件1444朝向第二弹簧142运动，以压缩第二弹簧142。相应的，在第二弹簧142受到压缩的情况下，被挤压的第二弹簧142会使第一摩擦片148与所述主轴组件紧抵产生限制所述主轴组件的转动的另一部分阻尼力。也即，在所述第一状态下，所述阻尼组件可以通过双组凸轮+双组弹簧+摩擦片的技术方案来提供阻尼力，以提升用户展开铰链机构过程中的手感。
在使用者需要改变铰链机构展开的角度的情况下，可对第一支架或第二支架施加外力，通过第一支架或第二支架带动主轴组件转动，从而由第一状态切换至第二状态。
在所述铰链机构处于所述第二状态的情况下，第一弹簧148推动第一凸轮件1443的凸部与第一凸轮结构1441的凹部相抵以限制第一凸轮结构1442的转动，第二凸轮结构1442的凸部与第二凸轮件1444的凹部相抵，第二弹簧142将第二凸轮件1444与第二凸轮结构1442压紧以限制第二凸轮结构1442的转动，所述铰链机构悬停，以使得第一支架10和第二支架11可以保持在当前的折叠角度。在所述第二状态下，所述阻尼组件可以通过双组凸轮+双组弹簧+摩擦片输出较大的扭矩，以使得所述铰链机构可以在没有外力作用的情况下可靠的保持在第二状态，确保第一支架和第二支架之间的夹角保持不便，从而提高所述铰链机构的悬停稳定性。
当使用者需要继续改变铰链机构展开的角度的情况下，再次对第一支架或第二支架施加外力，通过第一支架或第二支架带动第一转轴和第二转轴相对转动，从而由第二状态切换至第一状态。持续转动第一支架或第二支架使铰链机构在第一状态和第二状态之间反复切换，可以实现铰链机构的展平和折叠。
在本申请的一些可选实施例中，所述铰链机构还可以包括摩擦卡座1410，摩擦卡座1410与第一摩擦片146相对设置，第一摩擦片146和摩擦卡座1410中的一个随第一转轴135转动，第一摩擦片146和摩擦卡座1410中的另一个非转动的套设于第一转轴135。在第一转轴135转动的情况下，可以带动第一摩擦片146和摩擦卡座1410中的其中一个转动，而第一摩擦片146和摩擦卡座1410中的另一个则不会随着第一转轴135转动，这样，就可以实现第一摩擦片146与摩擦卡座1410的相对转动，产生较大的阻尼力以限制第一转轴135转动。
需要说明的是，在实际应用中，可以将第一摩擦片146固定在第一转轴135上，以使得第一摩擦片146可以随着第一转轴135转动，并将摩擦卡座1410非转动的套设在第一转轴135外。或者，将摩擦卡座1410固定在第一转轴135上，以使得摩擦卡座1410可以随着第一转轴135转动，并将第一摩擦片146非转动的套设在第一转轴135外。本申请实施例对于第一转轴135与第一摩擦片146以及摩擦卡座1410的连接方式不做具体限定。
在本申请的一些可选实施例中，第一摩擦片146套设于第一转轴135，第一摩擦片146随第一转轴135同步转动；在转动第一转轴135使第一摩擦片146相对于摩擦卡座1410转动的过程中，第二弹簧142可以使第一摩擦片146的摩擦面与摩擦卡座1410紧抵，通过第一摩擦片146和摩擦卡座1410之间的摩擦力限制第一摩擦片146的转动，从而限制第一转轴135转动。
在具体的应用中，在第一转轴135转动的过程中，第二弹簧142可以受到第二凸轮件1444的压缩产生弹力，将第一摩擦片146的摩擦面与摩擦卡座1410紧抵，使得第一摩擦片146与摩擦卡座1410之间产生较大的摩擦力，以限制第一摩擦片146转动。由于第一摩擦片146套设在第一转轴135外，在第一摩擦片146的转动受限的情况下，可以相应限制第一转轴135的转动，实现所述铰链机构的折叠或者悬停。
参照图3，示出了本申请实施例所述的一种第一转轴的结构示意图，参照图4，示出了本申请实施例所述的一种第一摩擦片的结构示意图。如图4所示，
可所述第一摩擦片146设置有安装通孔1461，第一转轴135穿过安装通孔1461。在垂直于第一转轴135的轴向的横截面上，安装通孔1461的至少一部分内壁面的孔径先增大后减小。如图3所示，第一转轴135的外周尺寸与安装通孔1461相匹配，以限制第一摩擦片146相对于第一转轴135转动。这样，在第一转轴135转动的过程中，可以带动第一摩擦片146跟随第一转轴135一起转动。
在具体的应用中，通过将安装通孔1461的至少一部分内壁面的孔径先增大后减小，并将第一转轴135上的外周尺寸与安装通孔1461相匹配，将第一摩擦片146的安装通孔1461套接在第一转轴135外时，可以实现第一转轴135与安装通孔1461之间的嵌合，以避免第一摩擦片146相对第一转轴135转动。
示例的，安装通孔1460上的至少一部分内壁面的孔径先增大后减小，可以形成截面 形状为腰型状或者长条状的安装孔，这样，就可以避免形成截面形状为圆形状的安装孔，避免第一摩擦片146与第一转轴135之间的相对转动。
在本申请的一些可选实施例中，第一弹簧148、第一凸轮件1443、第一凸轮结构1441、第二凸轮结构1442、第二凸轮件1444、第二弹簧142以及第一摩擦片146依次套设于第一转轴135，第一凸轮结构1441的凸部朝向第一弹簧148，第二凸轮结构1442的凸部朝向第二弹簧142。
在具体的应用中，通过将第一弹簧148、第一凸轮件1443、第一凸轮结构1441、第二凸轮结构1442、第二凸轮件1444、第二弹簧142以及第一摩擦片146依次套设于第一转轴135，有利于所述阻尼组件的紧凑部件，所述阻尼组件的体积较小。而且，还便于将所述阻尼组件设置在所述主轴组件的一侧，节约所述铰链机构的空间，便于在所述主轴组件的另一侧进行部件布局。在实际应用中，由于第一凸轮结构1441的凸部朝向第一弹簧148，以便于第一凸轮结构1441的凸部与第一凸轮件1443的凸部配合连接。第二凸轮结构1442的凸部朝向第二弹簧142，以便于第二凸轮结构1442的凸部与第二凸轮件1442的凸部配合连接。
本申请实施例中，所述主轴组件还可以包括第一同步摆臂131，第一同步摆臂131设于第一转轴135并随第一转轴135转动，第一同步摆臂131与第一支架10连接。
参照图5，示出了本申请实施例所述的一种第一同步摆臂的结构示意图，如图5所示，第一凸轮结构1441和第二凸轮结构1442设于第一同步摆臂131的相背离的两侧。第一同步摆臂134的转动带动第一转轴135以及第一同步摆臂131两侧的第一凸轮结构1441和第二凸轮结构1442转动。将第一凸轮结构1441和第二凸轮结构1442集成于第一同步摆臂131的相背离的两侧，则可通过第一同步摆臂131的转动同时使第一弹簧148和第二弹簧142形变，节省空间的同时提升阻尼组件通过两个分离的凸轮件从两个相对的方向对主轴组件限位的同步性。
可选的，第一转轴135具有第一部分1351和第二部分1352，第一部分1351和第二部分1352沿第一转轴135的延伸方向设置，第一部分1351的至少一个表面凸出于第二部分1352。
在实际应用中，第一同步摆臂131与第一支架10活动连接，在第一支架10转动的情况下，可以带动第一同步摆臂131转动。第一凸轮结构1441、第二凸轮结构1442以及第一转轴135可以固定连接在第一同步摆臂131上，以跟随第一同步摆臂131一起运动，第一转轴135则可以通过卡簧137固定连接在第一同步摆臂131上。如图3所示，第一转轴131上的第一部分1351的至少一个表面凸出于第二部分1352，第一部分135的截面形状可以与第一摩擦片146上的安装通孔1461的形状匹配，这样，第一摩擦片146上的安装通孔1461可以套接在第一部分1351外以防止第一摩擦片146相对第一转轴135转动。
需要说明的是，在实际应用中，第一部分1351长度通常大于第一摩擦片146的厚度， 这样，不仅可以提高第一摩擦片146套接在第一部分1351上的稳定性，而且，还便于第一部分1351的加工。
在本申请的一些可选实施例中，所述主轴组件还包括可以第二转轴136、第三凸轮结构1451和第四凸轮结构1452，第三凸轮结构1451和第四凸轮结构1452设于第二转轴136并随第二转轴136转动；所述阻尼组件还可以包括第三弹簧149、第三凸轮件1453、第四凸轮件1454、第二摩擦片147以及第四弹簧143；第三凸轮件1453与第三凸轮结构1451配合连接，第三凸轮件1453夹设于所述第三弹簧149和第三凸轮结构1451之间；第四凸轮件1454与第四凸轮结构1452配合连接，第四凸轮件1454夹设于第四弹簧143和第四凸轮结构1452之间，第二摩擦片147夹设于第四弹簧143和所述主轴组件之间；第一转轴135与第一支架10连接，第二转轴136与第二支架11连接。
在实际应用中，转动第二转轴136，第三弹簧149通过第三凸轮件1453限制第三凸轮结构1451转动，第四凸轮结构1452随第二转轴136转动以推动第四凸轮件1454挤压第四弹簧143，被挤压的第四弹簧143使第二摩擦片147与所述主轴组件紧抵以限制所述主轴组件的转动。
需要说明的是，第三凸轮结构1451、第四凸轮结构1452、第三弹簧149、第三凸轮件1453、第四凸轮件1454、第二摩擦片14、第四弹簧143的工作原理与第一凸轮结构1441、第二凸轮结构1442、第一弹簧148、第一凸轮件1443、第二凸轮件1444以及第一摩擦片146的工作原理类似，在此不做赘述。
可选地，所述铰链机构还包括摩擦卡座1410，摩擦卡座1410上开设有第一通孔和第二通孔，第一转轴135穿过所述第一通孔，第二转轴136穿过所述第二通孔，摩擦卡座1410与第一摩擦片146和第二摩擦片147相对设置；第二弹簧142使第一摩擦片146的摩擦面与摩擦卡座1410紧抵，第四弹簧143使第二摩擦片147的摩擦面与摩擦卡座1410紧抵，通过第一摩擦片146、第二摩擦片147和摩擦卡座1410之间的摩擦力限制第一支架10和第二支架11之间的相对转动。
本申请实施例中，由于摩擦卡座1410可以同时与第一摩擦片146和第二摩擦片147配合，避免了设置两个摩擦卡座去与第一摩擦片146和第二摩擦片147一一对应的操作，简化了所述铰链机构的结构。
需要说明的是，第二摩擦片147与摩擦卡座1410的相互作用原理与前述实施例中第一摩擦片146与摩擦卡座1410的相互作用原理类似，在此不做赘述。
在本申请的一些可选实施例中，第二弹簧142和第一摩擦片146之间设有弹簧座1413，第二弹簧142的一端与第二凸轮件1444连接，第二弹簧142的另一端与弹簧座1413连接，弹簧座1413的端面与第一摩擦片146的端面相抵。在实际应用中，弹簧座1413可以用于安装第二弹簧142并将第二弹簧142的弹性作用力传递至第一摩擦片146上，便于第一摩擦片146与所述主轴组件抵接。
需要说明的是，弹簧座1413还可以位于第四弹簧143与第二摩擦片147之间，弹簧 座1413的端面可以与第二摩擦片147的端面相抵。弹簧座1413可以用于安装第四弹簧143并将第四弹簧143的弹性作用力传递至第二摩擦片147上，便于第二摩擦片147与所述主轴组件抵接
可选地，所述铰链机构还可以包括固定座141，所述阻尼组件设于所述固定座141，第一转轴135可转动的穿设于固定座141，第一弹簧148的一端与所述固定座141连接，第一弹簧148的另一端与第一凸轮件1443连接。在实际应用中，固定座141可以用于安装并固定第一转轴135、第二转轴136、第一弹簧148、第二弹簧142、第三弹簧149以及第四弹簧143。
具体的，固定座141上可以设置有间隔设置第一容纳空间和第二容纳空间，第一转轴135和第二转轴136可以依次穿设于所述第一容纳空间和所述第二容纳空间，第一弹簧148可第三弹簧149可以安装在所述第一容纳空间内，第二弹簧142和第四弹簧143则可以安装在所述第二容纳空间内。
本申请实施例中，所述主轴组件还包括：第五弹簧1411、第六弹簧1412、第一同步齿轮133以及第二同步齿轮134，第二同步齿轮134与第一同步齿轮133啮合，第一同步齿轮133上设置有第一同步齿轮轴1331，第一同步齿轮133上设置有第二同步齿轮轴1341；第五弹簧1411套接在第一同步齿轮轴1331上，第六弹簧1412套设在第二同步齿轮轴1341上。在实际应用中，第五弹簧1411和第六弹簧1412可以与第二弹簧142和第四弹簧143平行设置，第五弹簧1411和第六弹簧1412可以用于提供部分限制所述主轴组件转动的阻尼力。
需要说明的是，第二主轴136可以包括第三部分1361和第四部分1362，其中，第三部分1361和第四部分1362与第一主轴135中的第一部分1351和第二部分1352的结构和工作原理相同，在此不做赘述。
本申请实施例中，所述主轴组件还可以包括第二同步摆臂132，第一同步摆臂131与所述第一支架10活动连接，第二同步摆臂132与所述第二支架11活动连接，第一同步摆臂131上设置有第一齿轮1311，第一齿轮1311与第一同步齿轮133啮合，第二同步摆臂132上设置有第二齿轮1321，第二齿轮1321与第二同步齿轮134啮合，第一同步齿轮133和所述第二同步齿轮134啮合，以实现所述第一同步摆臂131和所述第二摆臂的同步运动，并通过第一同步摆臂131和所述第二同步摆臂132的同步运动实现第一支架10和第二支架11的同步运动。
本申请实施例中，所述主轴组件还可以包括虚拟摆臂121和虚拟摆臂轴122，其中，虚拟摆臂轴122活动连接于虚拟摆臂121。第一支架10和第二支架11可以转动连接于虚拟摆臂轴122，通过第一支架10和第二支架11绕虚拟摆臂轴122的转动，可以实现第一支架10和第二支架11的相对转动。
综上，本申请实施例所述的铰链机构至少可以包括以下优点：
本申请实施例中，在所述铰链机构的所述第一转轴转动的过程中，所述阻尼组件的 所述第一弹簧可以通过所述第一凸轮件限制所述第一凸轮结构转动，所述第二凸轮结构随所述第一转轴转动以推动所述第二凸轮件挤压所述第二弹簧，被挤压的所述第二弹簧使所述第一摩擦片与所述主轴组件紧抵以限制所述主轴组件的转动。也即，所述阻尼组件可以通过双组凸轮+双组弹簧+摩擦片的技术方案来提供较大的阻尼力，提高的所述铰链机构的悬停稳定性。而且，由于所述阻尼组件设于所述主轴组件的一侧，所述阻尼组件的集成程度较高，布局较为紧凑，所述阻尼组件的体积也较小，有利于减小所述铰链机构的整体厚度，有利于电子设备的轻薄化设计。而且，由于所述阻尼组件设置在所述主轴组件的一侧，在所述铰链机构中占用的体积较小，有利于在主轴组件的另一侧进行其他机械部件或者电子器件的布局，有利于所述铰链机构内部的器件布局。
本申请实施例还提供了一种电子设备，所述电子设备具体可以包括上述任一实施例所述的铰链机构。具体的，所述电子设备可以为折叠式电子设备，所述折叠式的电子设备可以包括可相对折叠第一本体和第二本体。本申请实施例所述的铰链机构可以设置在所述第一本体和所述第二本体之间，以实现所述第一本体和所述第二本体的折叠和悬停。具体的，所述铰链机构中的所述第一支架可以与所述第一本体上的中框连接，所述铰链机构中的所述第二支架可以与所述第二本体的中框连接，这样，通过所述主轴组件的转动，可以带动所述第一支架和/或所述第二支架转动，可以实现所述第一本体和所述第二本体的展开或者折叠，通过所述阻尼组件对所述主轴组件转动的限制，可以实现所述第一支架和所述第二支架的悬停。
以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性的劳动的情况下，即可以理解并实施。
本文中所称的“一个实施例”、“实施例”或者“一个或者多个实施例”意味着，结合实施例描述的特定特征、结构或者特性包括在本申请的至少一个实施例中。此外，请注意，这里“在一个实施例中”的词语例子不一定全指同一个实施例。
在此处所提供的说明书中，说明了大量具体细节。然而，能够理解，本申请的实施例可以在没有这些具体细节的情况下被实践。在一些实例中，并未详细示出公知的方法、结构和技术，以便不模糊对本说明书的理解。
在权利要求中，不应将位于括号之间的任何参考符号构造成对权利要求的限制。单词“包含”不排除存在未列在权利要求中的元件或步骤。位于元件之前的单词“一”或“一个”不排除存在多个这样的元件。本申请可以借助于包括有若干不同元件的硬件以及借助于适当编程的计算机来实现。在列举了若干装置的单元权利要求中，这些装置中的若干个可以是通过同一个硬件项来具体体现。单词第一、第二、以及第三等的使用不表示任何 顺序。可将这些单词解释为名称。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (13)

  1. 一种铰链机构，其中，包括：主轴组件、第一支架、第二支架和阻尼组件，所述第一支架和所述第二支架通过所述主轴组件转动连接，所述阻尼组件设于所述主轴组件一侧以用于限制所述主轴组件转动；
    所述主轴组件包括第一转轴、第一凸轮结构和第二凸轮结构，所述第一凸轮结构和所述第二凸轮结构设于所述第一转轴并随所述第一转轴转动；
    所述阻尼组件包括第一弹簧、第一凸轮件、第二凸轮件、第一摩擦片以及第二弹簧；所述第一凸轮件与所述第一凸轮结构配合连接，所述第一凸轮件夹设于所述第一弹簧和所述第一凸轮结构之间；所述第二凸轮件与所述第二凸轮结构配合连接，所述第二凸轮件夹设于所述第二弹簧和所述第二凸轮结构之间，所述第一摩擦片夹设于所述第二弹簧和所述主轴组件之间；
    转动所述第一转轴，所述第一弹簧通过所述第一凸轮件限制所述第一凸轮结构转动，所述第二凸轮结构随所述第一转轴转动以推动所述第二凸轮件挤压所述第二弹簧，被挤压的所述第二弹簧使所述第一摩擦片与所述主轴组件紧抵以限制所述主轴组件的转动。
  2. 根据权利要求1所述的铰链机构，其中，转动所述第一转轴使所述铰链机构在第一状态和第二状态之间切换；
    所述铰链机构处于所述第一状态的情况下，所述第一凸轮件的凸部与所述第一凸轮结构的凸部相抵，所述第一弹簧使所述第一凸轮件压紧所述第一凸轮结构以限制所述第一凸轮结构转动；所述第二凸轮结构的凸部与所述第二凸轮件的凸部相抵，所述第二弹簧受挤压使所述第一摩擦片与所述主轴组件紧抵以限制所述主轴组件的转动；
    所述铰链机构处于所述第二状态的情况下，所述第一弹簧推动所述第一凸轮件的凸部与所述第一凸轮结构的凹部相抵以限制所述第一凸轮结构的转动；所述第二凸轮结构的凸部与所述第二凸轮件的凹部相抵，所述第二弹簧将所述第二凸轮件与所述第二凸轮结构压紧以限制所述第二凸轮结构的转动。
  3. 根据权利要求1所述的铰链机构，其中，所述铰链机构还包括摩擦卡座，所述摩擦卡座与所述第一摩擦片相对设置，所述第一摩擦片和所述摩擦卡座中的一个随所述第一转轴转动，所述第一摩擦片和所述摩擦卡座中的另一个非转动的套设于所述第一转轴。
  4. 根据权利要求3所述的铰链机构，其中，所述第一摩擦片套设于所述第一转轴，所述第一摩擦片随所述第一转轴同步转动；
    在转动所述第一转轴使所述第一摩擦片相对于所述摩擦卡座转动的过程中，所述第二弹簧使所述第一摩擦片的摩擦面与所述摩擦卡座紧抵，通过所述第一摩擦片和所述摩擦卡座之间的摩擦力限制所述第一摩擦片的转动，从而限制所述第一转轴转动。
  5. 根据权利要求3所述的铰链机构，其中，所述第一摩擦片设置有安装通孔，所述第一转轴穿过所述安装通孔；
    在垂直于所述第一转轴的轴向的横截面上，所述安装通孔的至少一部分内壁面的孔径先增大后减小；所述第一转轴的外周尺寸与所述安装通孔相匹配，以限制所述第一摩擦片相对于所述第一转轴转动。
  6. 根据权利要求1所述的铰链机构，其中，所述第一弹簧、所述第一凸轮件、所述第一凸轮结构、所述第二凸轮结构、所述第二凸轮件、所述第二弹簧以及所述第一摩擦片依次套设于所述第一转轴，所述第一凸轮结构的凸部朝向所述第一弹簧，所述第二凸轮结构的凸部朝向所述第二弹簧。
  7. 根据权利要求4所述的铰链机构，其中，所述主轴组件还包括第一同步摆臂，所述第一同步摆臂设于所述第一转轴并随所述第一转轴转动，所述第一同步摆臂与所述第一支架连接，所述第一凸轮结构和所述第二凸轮结构设于所述第一同步摆臂的相背离的两侧；
    所述第一同步摆臂的转动带动所述第一转轴以及所述同步摆臂两侧的所述第一凸轮结构和所述第二凸轮结构转动；
    所述第一转轴具有第一部分和第二部分，所述第一部分和所述第二部分沿所述第一转轴的延伸方向设置，所述第一部分的至少一个表面凸出于所述第二部分。
  8. 根据权利要求1所述的铰链机构，其中，所述主轴组件还包括第二转轴、第三凸轮结构和第四凸轮结构，所述第三凸轮结构和所述第四凸轮结构设于所述第二转轴并随所述第二转轴转动；
    所述阻尼组件还包括第三弹簧、第三凸轮件、第四凸轮件、第二摩擦片以及第四弹簧；所述第三凸轮件与所述第三凸轮结构配合连接，所述第三凸轮件夹设于所述第三弹簧和所述第三凸轮结构之间；所述第四凸轮件与所述第四凸轮结构配合连接，所述第四凸轮件夹设于所述第四弹簧和所述第四凸轮结构之间，所述第二摩擦片夹设于所述第四弹簧和所述主轴组件之间；
    所述第一转轴与所述第一支架连接，所述第二转轴与所述第二支架连接。
  9. 根据权利要求8所述的铰链机构，其中，还包括摩擦卡座，所述摩擦卡座上开设有第一通孔和第二通孔，所述第一转轴穿过所述第一通孔，所述第二转轴穿过所述第二通孔，所述摩擦卡座与所述第一摩擦片和所述第二摩擦片相对设置；
    所述第二弹簧使所述第一摩擦片的摩擦面与所述摩擦卡座紧抵，所述第四弹簧使所述第二摩擦片的摩擦面与所述摩擦卡座紧抵，通过所述第一摩擦片、所述第二摩擦片和所述摩擦卡座之间的摩擦力限制所述第一支架和所述第二支架之间的相对转动。
  10. 根据权利要求1所述的铰链机构，其中，所述第二弹簧和所述第一摩擦片之间设有弹簧座，所述第二弹簧的一端与所述第二凸轮件连接，所述第二弹簧的另一端与所述弹簧座连接，所述弹簧座的端面与所述第一摩擦片的端面相抵。
  11. 根据权利要求1所述的铰链机构，其中，还包括固定座，所述阻尼组件设于所述固定座，所述第一转轴可转动的穿设于所述固定座，所述第一弹簧的一端与所述固定 座连接，所述第一弹簧的另一端与所述第一凸轮件连接。
  12. 根据权利要求11所述的铰链机构，其中，所述主轴组件还包括：第五弹簧、第六弹簧、第一同步齿轮以及第二同步齿轮，第二同步齿轮与第一同步齿轮啮合，所述第一同步齿轮上设置有第一同步齿轮轴，所述第一同步齿轮上设置有第二同步齿轮轴；
    所述第五弹簧套接在所述第一同步齿轮轴上，所述第六弹簧套设在所述第二同步齿轮轴上。
  13. 一种电子设备，其中，所述电子设备包括权利要求1至12任一项所述的铰链机构。
PCT/CN2024/083441 2023-03-31 2024-03-25 一种铰链机构和电子设备 Ceased WO2024199159A1 (zh)

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CN117685288B (zh) * 2023-10-31 2024-05-10 广东小天才科技有限公司 一种阻尼结构及扫描笔

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