WO2023202134A1 - 转轴组件和可折叠装置 - Google Patents

转轴组件和可折叠装置 Download PDF

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Publication number
WO2023202134A1
WO2023202134A1 PCT/CN2022/141352 CN2022141352W WO2023202134A1 WO 2023202134 A1 WO2023202134 A1 WO 2023202134A1 CN 2022141352 W CN2022141352 W CN 2022141352W WO 2023202134 A1 WO2023202134 A1 WO 2023202134A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotating shaft
wheel
shaft assembly
bracket
rotating
Prior art date
Application number
PCT/CN2022/141352
Other languages
English (en)
French (fr)
Inventor
杨德森
吴崚
霍国亮
Original Assignee
荣耀终端有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 荣耀终端有限公司 filed Critical 荣耀终端有限公司
Publication of WO2023202134A1 publication Critical patent/WO2023202134A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/045—Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin
    • 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
    • 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
    • F16C11/12—Pivotal connections incorporating flexible connections, e.g. leaf springs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681—Details related solely to hinges
    • 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
    • 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 relates to the technical field of electronic equipment, and in particular to a rotating shaft assembly and a foldable device.
  • the present application provides a rotating shaft assembly and a foldable device to solve the technical problem that the foldable device in the prior art is difficult to open and close with one hand.
  • this application provides a rotating shaft assembly, including: a rotating shaft, a first bracket, a second bracket, a rotating wheel and a fixed wheel.
  • the first bracket is fixedly connected to the rotating shaft.
  • the rotating wheel includes a first friction surface
  • the rotating wheel includes a second friction surface
  • both the first friction surface and the second friction surface are flat surfaces.
  • the rotating wheel and the fixed wheel are both sleeved on the outer periphery of the rotating shaft, and the first friction surface is in contact with the second friction surface.
  • the fixed wheel is fixedly connected to the rotating shaft, and the rotating wheel is connected to the rotating shaft.
  • the rotating shaft is rotatably connected.
  • the second bracket is rotatably connected to the rotating shaft and fixedly connected to the rotating wheel. When the first bracket rotates relative to the second bracket, the rotating shaft is driven to rotate, so as to drive the fixed wheel to rotate, and generate friction between the first friction surface and the second friction surface.
  • the hinge assembly is used in a foldable device, which includes a host and a display.
  • the first bracket is fixedly connected to the display, and the second bracket is fixedly connected to the host.
  • the rotating shaft assembly is located between the host and the display to enable the host and the display to be rotationally connected. The host and the display can rotate relative to each other through the rotating shaft assembly, so that the foldable device can switch between unfolding and closing, thereby opening or closing the foldable device.
  • a first friction surface is provided on the rotating wheel, and a second friction surface in contact with the first friction surface is provided on the fixed wheel, so that when the rotating wheel and the fixed wheel rotate relative to each other, the first friction surface and the second friction surface Friction occurs between the surfaces.
  • This friction force can provide damping force for the rotation of the rotating shaft assembly, thereby providing the user with a damping feel, and allowing the rotating shaft assembly to hover at any angle to enhance the user experience.
  • both the first friction surface and the second friction surface are flat grinding surfaces.
  • the friction force between the first friction surface and the second friction surface is a constant value. It can be understood that the damping force received by the rotating shaft assembly is a constant value during the entire opening and closing process, and there is no climbing force, that is, the climbing magnification is 1, which is conducive to the one-hand opening and closing of the foldable device and improves the use of the user. experience.
  • setting the first friction surface and the second friction surface as flat grinding surfaces can also simplify the structure of the fixed wheel and the rotating wheel, simplify the processing technology of the fixed wheel and the rotating wheel, reduce the production cost, and at the same time, make the fixed wheel and the rotating wheel Wheels make it easier to achieve normalization and standardized design.
  • the friction force between the fixed wheel and the rotating wheel is a constant value.
  • the friction force between the fixed wheel and the rotating wheel is a constant value, that is, the damping force provided by the fixed wheel and the rotating wheel to the rotating shaft assembly is a constant value. Therefore, when the first bracket is rotated to switch the rotating shaft assembly from the closed state to the open state, no climbing force is required, that is, the climbing magnification is 1, which facilitates one-hand opening and closing of the foldable device and improves the user experience.
  • the friction coefficient of the first friction surface is 0.1-0.12; the friction coefficient of the second friction surface is 0.1-0.12.
  • the friction force between the first friction surface and the second friction surface is within an appropriate range, thereby preventing the rotation shaft from being damaged.
  • the damping force received by the component during rotation should not be too large, making it difficult to open and close, nor too small, resulting in insufficient damping feel, or the inability to achieve hovering in the open state.
  • the rotating wheel includes a first body and an extension body.
  • the extension body is fixedly connected to the first body and extends in a direction away from the first body; the first body is sleeved on the first body.
  • the outer circumference of the rotating shaft is rotatably connected to the rotating shaft, and the extension body is fixedly connected to the second bracket.
  • the second bracket is provided with a third installation hole, and the extension body is located in the third installation hole.
  • the rotating wheel is driven to remain fixed.
  • the fixed connection between the rotating wheel and the second bracket is achieved, thereby simplifying the structure of the rotating shaft assembly.
  • the rotating wheel further includes a second body, the second body is parallel to and spaced apart from the first body, and the second body is fixedly connected to the extension body.
  • the rotating shaft assembly also includes a second friction plate located between the first body and the second body and in contact with the first body and the second body, and the second friction plate is The second friction plate is fixedly connected to the rotating shaft.
  • the first body and the second body on the rotating wheel, and disposing the second friction plate between the first body and the second body, when the rotating wheel rotates relative to the second friction plate, the first body and the second friction plate are disposed on the rotating wheel. Friction force is generated between the second body and the second friction plate, which can further increase the damping force received by the rotating shaft assembly during rotation, thereby further improving the user's damping feel.
  • the rotating shaft includes a bearing portion, the bearing portion is a flat shaft, the outer peripheral surface of the bearing portion includes a planar portion and an arcuate portion, and the planar portion is connected to the arcuate portion;
  • the fixed wheel is provided with a second through hole, the outline of the second through hole is consistent with the outer outline of the bearing portion; the bearing portion is installed in the second through hole, and the rotation of the bearing portion can drive the The fixed wheels rotate synchronously.
  • the load-bearing part as a flat shaft and matching the second through hole of the fixed wheel with the flat shaft, a fixed connection between the fixed wheel and the load-bearing part can be achieved without the need for additional structures for fixed connection. parts, thereby simplifying the structure of the rotating shaft assembly.
  • the rotating shaft assembly includes an elastic member.
  • the elastic member is sleeved on the outer periphery of the rotating shaft. The elastic member is in a compressed state and resists the fixed wheel, so that the fixed wheel contacts the fixed wheel. Hold the rotating wheel.
  • an elastic member is provided, and the elastic member is in a compressed state and has elastic restoring force.
  • the elastic restoring force generated by the elastic member acts on the fixed wheel, and the fixed wheel acts on the rotating wheel, thereby increasing the friction between the elastic member and the fixed wheel, and at the same time increasing the friction between the fixed wheel and the rotating wheel. This can further increase the damping force received by the rotating shaft assembly during the rotation process, further improve the user's damping feel, and improve the user's experience.
  • the elastic member is a disc spring group or a spring, or the elastic member is made of an elastomeric material.
  • the disc spring group is used as the elastic member, which can simplify the structure of the rotating shaft assembly and reduce the size of the rotating shaft assembly, which is conducive to making the foldable device lighter and thinner. Moreover, during use, the number of disc springs in the disc spring group can be adjusted according to actual use needs to adjust the force provided by the disc spring group, thereby adjusting the damping force received by the rotating shaft assembly during rotation, and thus can Increase the applicability of the disc spring group and reduce the cost of the rotating shaft assembly. Using spring or elastomer materials as elastic parts has low cost.
  • the rotating shaft assembly includes a first friction plate, the first friction plate is fixedly connected to the rotating shaft, and the first friction plate is located between the rotating wheel and the second bracket, And resists the rotating wheel and the second bracket.
  • the rotating shaft When the first bracket rotates relative to the second bracket, the rotating shaft is driven to rotate relative to the second bracket, thereby driving the first friction plate to rotate relative to the rotating wheel and the second bracket.
  • friction force is generated between the first friction plate and the rotating wheel. This friction force prevents the rotation of the rotating shaft by preventing the first friction plate from rotating, thereby providing a damping force for the rotation of the rotating shaft assembly.
  • friction force is generated between the first friction plate and the second bracket. This friction force can further prevent the rotation of the rotating shaft, thereby further increasing the damping force on the rotating shaft assembly and improving the user's damping feel. .
  • the rotating wheel includes a first surface, the first surface is a plane, the first surface is arranged opposite to the first friction surface, and the first surface and the first friction surface are arranged oppositely. piece of contact.
  • the rotating shaft drives the rotating shaft to rotate relative to the second bracket.
  • the rotating shaft drives the first friction plate to rotate, so that the first friction plate rotates relative to the rotating wheel, and the first friction plate and the first surface are connected to each other. produce friction.
  • the friction force prevents the rotation of the rotating shaft by preventing the first friction plate from rotating, thereby providing a damping force for the rotation of the rotating shaft assembly.
  • the rotating shaft assembly further includes a fixing member fixed to an end of the rotating shaft facing away from the first bracket, and the elastic member, the fixed wheel, the rotating wheel and The second brackets are located between the fixing member and the first bracket.
  • the fixing member is a nut. In other embodiments, the fixing member may also be other fixing elements.
  • the fixing piece is used to fix the elastic piece so that the elastic piece is stably installed on the rotating shaft, and at the same time, the rotating wheel, the fixed wheel and the second bracket are stably installed on the rotating shaft, so as to prevent the second bracket, the rotating wheel, the fixed wheel and the elastic piece from being removed from the rotating shaft. The ends are detached, thereby increasing the structural stability of the rotating shaft assembly.
  • the rotating shaft assembly further includes a stopper piece, the stopper piece is located between the fixing piece and the elastic piece, and is fixedly connected to the rotating shaft, and the stopper piece is connected to the rotating shaft.
  • the fixing pieces are in contact.
  • a stop piece is provided to increase the friction between the fixing piece and the stop piece, thereby preventing the fixing piece from being detached from the rotating shaft, thereby improving the structural stability of the rotating shaft assembly.
  • the rotating shaft further includes a connecting part and a protruding part.
  • the connecting part, the protruding part and the bearing part are fixedly connected along the axial direction of the rotating shaft.
  • the outer surface of the protruding part The diameter is larger than the outer diameter of the connecting part and the bearing part.
  • the rotating wheel is installed on the bearing part.
  • the rotating shaft assembly also includes an auxiliary rotating wheel. The auxiliary rotating wheel is rotatably installed on the connecting part and is fixedly connected to the second bracket, and the auxiliary rotating wheel in contact with the side of the protrusion.
  • the rotating shaft when the first bracket rotates relative to the second bracket, the rotating shaft is driven to rotate relative to the second bracket, and the rotating shaft is rotated relative to the auxiliary rotating wheel, thereby generating friction between the auxiliary rotating wheel and the protruding portion to further increase the friction.
  • the rotating shaft assembly further includes an auxiliary elastic member.
  • the auxiliary elastic member is installed on the connecting part and is located on a side of the auxiliary rotating wheel facing away from the protruding part. The parts are in a compressed state to squeeze the auxiliary rotating wheel.
  • the auxiliary elastic member is provided, and the compression of the auxiliary elastic member can squeeze the auxiliary rotating wheel, thereby increasing the force between the auxiliary rotating wheel and the protruding portion, thereby increasing the distance between the auxiliary rotating wheel and the protruding portion. friction between parts.
  • the rotating shaft assembly further includes an auxiliary friction plate, which is installed on the connecting part and is fixedly connected to the connecting part; the auxiliary friction plate is located between the auxiliary rotating wheel and the connecting part. between the auxiliary elastic parts, and the auxiliary elastic parts resist the auxiliary friction plate.
  • the auxiliary friction plate by arranging the auxiliary friction plate and contacting the auxiliary rotating wheel, when the rotating shaft rotates relative to the second bracket, the auxiliary friction plate rotates relative to the auxiliary rotating wheel, thereby causing a gap between the auxiliary friction plate and the auxiliary rotating wheel.
  • the friction force can further increase the damping force experienced by the rotating shaft assembly when it rotates.
  • This application also provides a foldable device, including a host, a display, and the above-mentioned rotating shaft assembly.
  • the rotating shaft assembly is connected between the host and the display. When the rotating shaft assembly rotates, the display and the host rotate relative to each other. .
  • the host is used to execute information
  • the display is used to display the results of information processing performed by the host.
  • the rotating shaft assembly connects the host and the display so that the host and the display are rotationally connected.
  • the host and the display can rotate relative to each other through the rotating shaft assembly, so that the foldable device can switch between unfolding and closing, thereby opening or closing the foldable device.
  • the foldable device is in a closed state
  • the host and the display are stacked.
  • the display surface of the display is located inside the foldable device, which can greatly reduce the probability of damage to the display and achieve effective protection of the display.
  • the foldable device is in a closed state, it is small and easy to carry.
  • the foldable device is in an unfolded state, there is a first included angle between the host and the display.
  • the foldable device When the foldable device is in the unfolded state, it can be easily operated and used by the user.
  • the foldable device further includes a first magnetic component and a second magnetic component, the first magnetic component is installed on the display, the second magnetic component is installed on the host, and the display When closed relative to the host, the first magnetic component and the second magnetic component magnetically attract each other.
  • the first magnetic component and the second magnetic component are positioned correspondingly and magnetically attract each other, thereby It can improve the stability of the host and the display when they are closed, and prevent the display and the host from expanding due to gravity when the user is carrying the foldable device.
  • this application provides a first friction surface on the rotating wheel and a second friction surface in contact with the first friction surface on the fixed wheel, so that when the rotating wheel and the fixed wheel rotate relative to each other, the first friction surface and the second friction surface Friction occurs between the surfaces.
  • This friction force can provide damping force for the rotation of the rotating shaft assembly, thereby providing the user with a damping feel, and allowing the rotating shaft assembly to hover at any angle to enhance the user experience.
  • both the first friction surface and the second friction surface are flat grinding surfaces.
  • the friction force between the first friction surface and the second friction surface is a constant value. It can be understood that the damping force received by the rotating shaft assembly is a constant value during the entire opening and closing process, and there is no climbing force, that is, the climbing magnification is 1, which is conducive to the one-hand opening and closing of the foldable device and improves the use of the user. experience.
  • setting the first friction surface and the second friction surface as flat grinding surfaces can also simplify the structure of the fixed wheel and the rotating wheel, simplify the processing technology of the fixed wheel and the rotating wheel, reduce the production cost, and at the same time, make the fixed wheel and the rotating wheel Wheels make it easier to achieve normalization and standardized design.
  • Figure 1 is a schematic structural diagram of a foldable device provided by an embodiment of the present application.
  • FIG 2 is a schematic structural diagram of the rotating shaft assembly in the foldable device shown in Figure 1;
  • FIG 3 is an exploded structural diagram of the rotating shaft assembly shown in Figure 2;
  • FIG 4 is a schematic structural diagram of the rotating shaft in the rotating shaft assembly shown in Figure 2;
  • Figure 5 is a partially exploded structural diagram of the rotating shaft assembly shown in Figure 2;
  • Figure 6 is a schematic structural diagram of the fixed wheel and the rotating wheel in the rotating shaft assembly shown in Figure 3;
  • Figure 7 is a schematic structural diagram of a rotating shaft assembly provided by a second embodiment of the present application.
  • Figure 8 is an exploded structural diagram of the rotating shaft assembly shown in Figure 7;
  • Figure 9 is a schematic structural diagram of a rotating shaft assembly provided by a third embodiment of the present application.
  • FIG. 10 is an exploded structural view of the rotating shaft assembly shown in FIG. 9 .
  • FIG. 1 is a schematic structural diagram of a foldable device 200 provided by an embodiment of the present application.
  • the foldable device 200 provided in the embodiment of the present application includes but is not limited to electronic products such as notebook computers, foldable mobile phones, tablet computers, laptop computers, personal digital assistants, or wearable devices.
  • electronic products such as notebook computers, foldable mobile phones, tablet computers, laptop computers, personal digital assistants, or wearable devices.
  • the following description assumes that the foldable device 200 is a notebook computer.
  • the length direction of the foldable device 200 is defined as the X direction
  • the width direction of the foldable device 200 is defined as the Y direction
  • the thickness direction of the foldable device 200 is defined as the Z direction.
  • the X direction, Y direction and Z direction are perpendicular to each other.
  • the foldable device 200 includes a host 110, a display 120 and a rotating shaft assembly 100.
  • the host 110 is used to execute information
  • the display 120 is used to display the results of information processing executed by the host 110 .
  • the rotating shaft assembly 100 connects the host 110 and the display 120 so that the host 110 and the display 120 are rotationally connected.
  • the host 110 and the display 120 can rotate relative to each other through the rotating shaft assembly 100, so that the foldable device 200 switches between unfolding and closing, thereby opening or closing the foldable device 200.
  • there is one rotating shaft assembly 100 and the rotating shaft assembly 100 is located in the middle of the main body 110 in the X direction to ensure the rotational stability of the foldable device 200 .
  • the host 110 and the display 120 are stacked. At this time, the display surface of the display 120 is located inside the foldable device 200 , which can greatly reduce the probability of damage to the display 120 and achieve effective protection of the display 120 . Moreover, when the foldable device 200 is in the closed state, it is small in size and easy to carry.
  • the foldable device 200 is in the unfolded state, there is a first included angle ⁇ between the host 110 and the display 120.
  • the first included angle ⁇ is greater than 0 degrees and less than or equal to 180 degrees.
  • the first included angle ⁇ may be 90 degrees, 100 degrees, or 120 degrees.
  • the foldable device 200 also includes a first magnetic component 230 and a second magnetic component 240 .
  • the first magnetic component 230 and the second magnetic component 240 are both magnets, and the first magnetic component 230 and the second magnetic component 240 are magnetically attracted to each other.
  • the first magnetic component 230 and the second magnetic component 240 may also be electromagnets.
  • the first magnetic component 230 is a magnet
  • the second magnetic component 240 is a magnetophilic metal, such as iron, cobalt or nickel.
  • the second magnetic component 240 is a magnet
  • the first magnetic component 230 is a magnetophilic metal.
  • the first magnetic component 230 is installed on the display 120
  • the second magnetic component 240 is installed on the host 110
  • the position of the first magnetic component 230 is opposite to the position of the second magnetic component 240 .
  • the first magnetic component 230 and the second magnetic component 240 are both one, and the first magnetic component 230 is located in the middle of the top edge of the display 120, and the second magnetic component 240 is located in the middle of the edge of the host.
  • the first magnetic part 230 may also be located at the edge of the side of the display 120, and the second magnetic part 240 may be located at the edge of the side of the host.
  • the number of the first magnetic members 230 may be two or more than three, and the number of the second magnetic members 230 may also be two or more than three.
  • the embodiment of the present application does not specifically limit the distribution of the number of the first magnetic component 230 and the second magnetic component 240 , as long as the first magnetic component 230 and the second magnetic component 240 magnetically attract each other when the display 120 is closed relative to the host 110 .
  • the first magnetic component 230 and the second magnetic component 240 are positioned correspondingly and magnetically attracted to each other, thereby improving the stability of the closure of the host 110 and the display 120 and preventing the user from slipping when carrying the foldable device 200.
  • the display 120 and the host 110 are spread apart due to gravity. Furthermore, when the display 120 rotates to a smaller angle with the host 110 , the attractive force between the first magnetic component 230 and the second magnetic component 240 causes the display 120 to rotate toward the host 110 , thereby realizing the foldable device 200 Automatic closing to further improve the user experience.
  • FIG. 2 is a schematic structural diagram of the rotating shaft assembly 100 in the foldable device 200 shown in FIG. 1 .
  • FIG. 3 is an exploded structural schematic diagram of the rotating shaft assembly 100 shown in FIG. 2 .
  • the rotating shaft assembly 100 includes a rotating shaft 10 , a first bracket 20 , a second bracket 30 , a rotating wheel 41 , a fixed wheel 42 , an elastic member 50 , a fixed member 51 , a first friction plate 52 and a stopper piece 53 .
  • the second bracket 30 , the first friction plate 52 , the rotating wheel 41 , the fixed wheel 42 , the elastic member 50 , the stop piece 53 and the fixing member 51 are sleeved on the outer peripheral side of the rotating shaft 10 in sequence.
  • the first bracket 20 , the first friction plate 52 , the fixed wheel 42 , the stopper 53 and the fixing member 51 are all fixedly connected to the rotating shaft 10
  • the second bracket 30 , the rotating wheel 41 and the elastic member 50 are all rotationally connected to the rotating shaft 10 .
  • the first bracket 20 rotates relative to the second bracket 30, it drives the rotating shaft 10 to rotate relative to the second bracket 30.
  • the rotating shaft 10 also drives the fixed wheel 42, the first friction plate 52, the stopper 53 and the fixing member 51 to rotate synchronously, and the rotating shaft 10 rotates relative to the second bracket 30.
  • FIG. 4 is a schematic structural diagram of the rotating shaft 10 in the rotating shaft assembly 100 shown in FIG. 2 .
  • the rotating shaft 10 includes a fixed part 11 , a connecting part 12 , a bearing part 13 and a protruding part 14 .
  • the fixed part 11 , the protruding part 14 , the connecting part 12 and the carrying part 13 are fixedly connected in sequence along the axial direction of the rotating shaft 10 , and the outer diameter of the protruding part 14 is larger than the fixed part 11 , the connecting part 12 and the carrying part 13 .
  • the fixing part 11 has a flat plate structure.
  • the fixing part 11 is provided with fixing holes 15 .
  • the fixing hole 15 penetrates the fixing part 11 in the thickness direction. In this embodiment, there are two fixing holes 15 .
  • the two fixing holes 15 are arranged at intervals along the length direction of the fixing part 11 .
  • the fixing part 11 is used for fixed connection with the first bracket 20 .
  • the bearing part 13 is a flat shaft.
  • the outer peripheral surface of the bearing portion 13 includes a flat portion 131 and an arcuate portion 132 .
  • the flat part 131 and the arcuate part 132 are connected to form the outer peripheral surface of the bearing part 13 .
  • the outer peripheral surface refers to the surface around the axis. It can be understood that the cross-section perpendicular to the axis of the carrying portion 13 has arcuate sides and straight sides.
  • the connecting part 12 is cylindrical.
  • the connecting part 12 is located between the fixing part 11 and the carrying part 13 .
  • One end of the connecting part 12 is fixedly connected to the fixing part 11 and the other end is fixedly connected to the carrying part 13 .
  • the extension directions of the fixing part 11 , the connecting part 12 and the carrying part 13 are consistent.
  • the protruding portion 14 protrudes from the outer periphery of the connecting portion 12 and is fixedly connected to the protruding portion 14 .
  • the protruding portion 14 is located on a side close to the carrying portion 13 .
  • the outer contour of the protruding portion 14 may be circular or irregular.
  • the outer diameter of the protruding portion 14 is larger than the maximum diameters of the connecting portion 12 and the bearing portion 13 .
  • the connecting part 12 is integrally formed with the fixing part 11 , the bearing part 13 and the protruding part 14 . That is, the rotating shaft 10 is an integrally formed part to ensure the structural stability of the rotating shaft 10 .
  • the connecting portion 12 can also be fixedly connected to the fixing portion 11 , the bearing portion 13 and the protruding portion 14 through welding or other connection methods.
  • FIG. 5 is a partially exploded structural view of the rotating shaft assembly 100 shown in FIG. 2 .
  • the first bracket 20 includes a first support body 21 and a first connecting body 22 . Both the first supporting body 21 and the first connecting body 22 are plate-shaped structures.
  • the first connecting body 22 is fixedly connected to one side of the first supporting body 21 and is distributed in a stepped manner.
  • the structure of the first connecting body 22 is adapted to the structure of the first fixing part 11 .
  • the first connecting body 22 is provided with a first mounting hole 23 . In this embodiment, there are two first mounting holes 23 .
  • the two first mounting holes 23 are spaced side by side, and the first mounting holes 23 match the fixing holes 15 .
  • the first connecting body 22 is used for fixed connection with the fixed part 11 of the rotating shaft 10 .
  • Spindle assembly 100 also includes bolts 60 .
  • the first bracket 20 is installed on the fixed part 11 of the rotating shaft 10 .
  • the first connecting body 22 is installed on the surface of the fixing part 11 , and a first mounting hole 23 is aligned with a fixing hole 15 .
  • One of the bolts 60 passes through a first mounting hole 23 and the corresponding fixing hole 15 and is fixedly connected to the fixing part 11; the other bolt 60 passes through another first mounting hole 23 and the corresponding fixing hole 15 and is fixedly connected to the fixing part 11.
  • the first bracket 20 is fixedly connected to the rotating shaft 10 .
  • the first bracket 20 can also be fixedly connected to the rotating shaft 10 through bonding, welding or other connection methods.
  • the second bracket 30 includes a second supporting body 31 and a second connecting body 32 .
  • the second supporting body 31 and the second connecting body 32 are both plate-shaped structures.
  • the second connecting body 32 is fixedly connected to the second supporting body 31 .
  • the plane where the second connecting body 32 is located is perpendicular to the plane where the second supporting body 31 is located.
  • the angle between the plane where the second connecting body 32 is located and the plane where the second supporting body 31 is located may also be greater than 90 degrees, or less than 90 degrees.
  • the outer contour of the end of the second connecting body 32 away from the second supporting body 31 is semicircular.
  • the second connecting body 32 includes a first side 321 and a second side 322 .
  • the first side 321 and the second side 322 are arranged oppositely.
  • the second connecting body 32 is provided with a second mounting hole 33 and a third mounting hole 34 .
  • the second mounting holes 33 and the third mounting holes 34 are spaced apart, and both the second mounting holes 33 and the third mounting holes 34 penetrate the first side 321 and the second side 322 .
  • the second mounting hole 33 is located at an end of the second connecting body 32 away from the second supporting body 31
  • the third mounting hole 34 is located between the second mounting hole 33 and the second supporting body 31 .
  • the second mounting hole 33 is a circular hole, and the diameter of the second mounting hole 33 is larger than the maximum diameter of the bearing portion 13 .
  • the third mounting hole 34 is a square hole, and the third mounting hole 34 is used to connect with the rotating wheel 41 . In other embodiments, the third mounting hole 34 may also be circular or other shapes.
  • the second bracket 30 is installed on the bearing portion 13 of the rotating shaft 10 , and the second bracket 30 can rotate relative to the rotating shaft 10 .
  • the bearing portion 13 of the rotating shaft 10 passes through the second mounting hole 33 so that the second connecting body 32 is sleeved on the outer periphery of the bearing portion 13 and the second side 322 of the second connecting body 32 is in contact with the protruding portion 14 .
  • the first supporting body 21 is used for fixed connection with the display 120
  • the second supporting body 31 is used for fixed connection with the host 110 .
  • the display 120 rotates relative to the host 110, it drives the first supporting body 21 to rotate.
  • the first supporting body 21 drives the rotating shaft 10 to rotate through the first connecting body 22, and causes the rotating shaft 10 to rotate in the second mounting hole 33, so that the rotating shaft 10 faces each other.
  • the second connecting body 32 rotates, thereby causing the first bracket 20 and the second bracket 30 to rotate relative to each other, thereby realizing the rotation of the rotating shaft assembly 100 and the foldable device 200 .
  • FIG. 6 is a schematic structural diagram of the fixed wheel 42 and the rotating wheel 41 in the rotating shaft assembly 100 shown in FIG. 3 .
  • the rotating wheel 41 includes a first body 411 and an extension body 412 .
  • the first body 411 is disc-shaped and has a first outer ring surface 416 .
  • the extension body 412 is fixedly connected to the first body 411 , and the extension body 412 extends from the first outer annular surface 416 of the first body 411 in a direction away from the first body 411 .
  • the extension direction of the extension body 412 is parallel to the axis direction of the first body 411 .
  • the first body 411 includes a first friction surface 413 and a first surface 414 .
  • the first friction surface 413 and the first surface 414 are arranged oppositely, and the first friction surface 413 and the first surface 414 are respectively located on opposite sides of the first body 411 in the axial direction thereof.
  • the first outer ring surface 416 connects the first friction surface 413 and the first surface 414 .
  • the first friction surface 413 and the first surface 414 are both flat.
  • the friction coefficient of the first friction surface 413 is 0.1 ⁇ 0.12.
  • the friction coefficient of the first friction surface 413 may also be greater than 0.12, or greater than 0 and less than 0.1.
  • the first friction surface 413 can be sanded to increase the friction coefficient.
  • the first friction surface 413 may be coated with a friction coating to increase the friction coefficient of the first friction surface 413 .
  • the rotating wheel 41 is provided with a first through hole 415 that penetrates the first surface 414 and the first friction surface 413 .
  • the first through hole 415 is a circular hole, and the diameter of the first through hole 415 is larger than the maximum diameter of the bearing portion 13 .
  • the outer contour of the fixed wheel 42 is disk-shaped.
  • the fixed wheel 42 includes a second friction surface 421 , a second surface 422 and a second outer ring surface 424 .
  • the second friction surface 421 and the second surface 422 are arranged oppositely, and the second friction surface 421 and the second surface 422 are respectively located on opposite sides of the first body 411 in the axial direction.
  • the second outer ring surface 424 connects the second friction surface 421 and the second surface 422 .
  • the second friction surface 421 and the second surface 422 are both flat.
  • the friction coefficient of the second friction surface 421 is 0.1 ⁇ 0.12.
  • the friction coefficient of the second friction surface 421 may also be greater than 0.12, or greater than 0 and less than 0.1.
  • the second friction surface 421 can be sanded to increase the friction coefficient.
  • the second friction surface 421 may be coated with a friction coating to increase the friction coefficient of the second friction surface 421 .
  • the fixed wheel 42 is provided with a second through hole 423 .
  • the second through hole 423 is flat, and the shape of the second through hole 423 matches the outer contour of the carrying portion 13 .
  • the rotating wheel 41 and the fixed wheel 42 are both installed on the bearing portion 13 of the rotating shaft 10 .
  • the rotating wheel 41 is rotationally connected to the rotating shaft 10
  • the fixed wheel 42 is fixedly connected to the rotating shaft 10 .
  • the bearing part 13 passes through the first through hole 415 so that the first body 411 is sleeved on the outer periphery of the bearing part 13 .
  • the first surface 414 faces the second side 322 of the second bracket 30 , and the extension body 412 is located in the third mounting hole 34 .
  • the extension body 412 can drive the first body 411 to rotate relative to the rotating shaft 10 .
  • the bearing part 13 passes through the second through hole 423 so that the fixed wheel 42 is sleeved on the outer periphery of the bearing part 13 .
  • the fixed wheel 42 is located on the side of the rotating wheel 41 facing away from the second bracket 30 , and the second friction surface 421 faces and contacts the first friction surface 413 .
  • the flat part of the second through hole 423 is opposite to the flat part 131 of the carrying part 13, and the arc part of the second through hole 423 is opposite to the arc part 132 of the carrying part 13, so that the fixed wheel 42 is fixedly connected to the carrying part 13.
  • first bracket 20 When the first bracket 20 rotates relative to the second bracket 30, it drives the fixed part 11 of the rotating shaft 10 to rotate, and drives the connecting part 12, the protruding part 14 and the bearing part 13 to rotate synchronously, so that the bearing part 13 is between the second mounting hole 33 and the second mounting hole 33. Rotate in a through hole 415.
  • the protruding part 14 rotates relative to the second bracket 30
  • the side surface of the protruding part 14 rotates relative to the first side surface 321 and generates frictional force.
  • the bearing part 13 When the bearing part 13 rotates, it also drives the fixed wheel 42 to rotate relative to the rotating wheel 41, but the rotating wheel 41 does not rotate.
  • the first friction surface 413 and the second friction surface 421 rotate relative to each other and generate frictional force.
  • the first friction surface 413 is provided on the rotating wheel 41
  • the second friction surface 421 in contact with the first friction surface 413 is provided on the fixed wheel 42, so that when the rotating wheel 41 and the fixed wheel 42 rotate relative to each other, the second friction surface 421 is provided on the fixed wheel 42.
  • Friction force is generated between the first friction surface 413 and the second friction surface 421 .
  • This friction force can provide a damping force for the rotation of the rotating shaft assembly 100, thereby providing a damping feel to the user, and allowing the rotating shaft assembly 100 to hover at any angle to enhance the user's experience.
  • the friction force generated between the side surface of the protruding portion 14 and the first side surface 321 can also provide a damping force for the rotation of the rotating shaft assembly 100 to further improve the user's damping feel.
  • the first friction surface 413 and the second friction surface 421 are both flat grinding surfaces.
  • the friction force between the first friction surface 413 and the second friction surface 421 is constant. value. It can be understood that during the entire opening and closing process, the damping force received by the rotating shaft assembly 100 is a constant value, and there is no climbing force, that is, the climbing magnification is 1, which is conducive to realizing the one-hand opening and closing of the foldable device 200 and improves user comfort. usage experience.
  • configuring the first friction surface 413 and the second friction surface 421 as flat grinding surfaces can also simplify the structures of the rotating wheel 41 and the fixed wheel 42, simplify the processing technology of the rotating wheel 41 and the fixed wheel 42, and reduce the production cost. , making it easier to realize normalization and standardized design of the rotating wheel 41 and the fixed wheel 42.
  • the elastic member 50 is sleeved on the outer periphery of the bearing portion 13 of the rotating shaft 10 and is located on the side of the fixed wheel 42 facing away from the rotating wheel 41 , and one end of the elastic member 50 is in contact with the fixed wheel 42 .
  • the elastic member 50 is a disc spring group.
  • the elastic member 50 may also be a spring, an elastomer, or other elastic structural member.
  • the disc spring group includes five disc springs 501 .
  • disc springs 501 are arranged side by side on the bearing portion 13 along the axial direction of the rotating shaft 10 and are located on the side of the fixed wheel 42 facing away from the rotating wheel 41 , and the disc spring group is in contact with the fixed wheel 42 .
  • the disc spring group may also include less than four or more than six disc springs 501 .
  • disc spring 501 (belleville spring) is also known as Belleville spring washer.
  • the shape of the disc spring 501 is a conical disc shape.
  • the disc spring 501 is flattened and stores elastic potential energy when bearing a load, and releases the elastic potential energy when the load is removed or reduced. Compared with traditional springs, disc spring 501 has the advantages of large load, short stroke, small space required, easy combination and use, easy maintenance and replacement, and high economic safety.
  • Disc spring 501 is suitable for small space, large load and precision machinery.
  • the fixing member 51 is a nut. In other embodiments, the fixing member 51 can also be other fixing elements.
  • the fixing piece 51 is located at an end of the bearing portion 13 away from the connecting portion 12 and is fixedly connected to the bearing portion 13 .
  • the fixing piece 51 presses the elastic piece 50 toward the elastic piece 50 so that the elastic piece 50 is in a compressed state. That is, the elastic member 50 is located between the fixed member 51 and the fixed wheel 42, and the elastic member 50 is in a compressed state under the extrusion of the fixed member 51 and the fixed wheel 42. At the same time, the elastic member 50 exerts a direction rotation on the fixed wheel 42. The elastic extrusion force in the direction of wheel 41.
  • the magnitude of sliding friction is related to the magnitude of pressure.
  • the elastic member 50 in this embodiment is in a compressed state and has elastic restoring force.
  • the elastic restoring force generated by the elastic member 50 acts on the fixed wheel 42, and the fixed wheel 42 acts on the rotating wheel 41, thereby increasing the force between the fixed wheel 42 and the rotating wheel 41, and thereby increasing the force between the fixed wheel 42 and the rotating wheel 41.
  • the friction force between the rotating wheels 41 further increases the damping force received by the rotating shaft assembly 100 during the rotation process, further improving the user's damping feel and improving the user's use experience.
  • a disc spring group is used as the elastic member 50 , which can simplify the structure of the rotating shaft assembly 100 and reduce the size of the rotating shaft assembly 100 , which is beneficial to making the foldable device 200 lighter and thinner.
  • the number of disc springs 501 in the disc spring group can be adjusted according to actual use requirements to adjust the force provided by the disc spring group, thereby adjusting the damping force received by the rotating shaft assembly 100 during rotation. This can increase the applicability of the disc spring assembly and reduce the cost of the rotating shaft assembly 100 .
  • the fixing member 51 provided in this embodiment is used to fix the elastic member 50 so that the elastic member 50 is stably installed on the rotating shaft 10, and at the same time, the rotating wheel 41, the fixed wheel 42 and the second bracket 30 are stably installed on the rotating shaft 10. This prevents the second bracket 30 , the rotating wheel 41 , the fixed wheel 42 and the elastic member 50 from detaching from the end of the rotating shaft 10 , thereby increasing the structural stability of the rotating shaft assembly 100 .
  • the rotating shaft assembly 100 further includes a first friction plate 52 .
  • the first friction plate 52 includes a first surface 521 and a second surface 522 .
  • the first surface 521 and the second surface 522 are arranged opposite to each other, and both the first surface 521 and the second surface 522 are rough planes.
  • the first friction plate 52 is provided with a third through hole 523 that penetrates the first surface 521 and the second surface 522 .
  • the third through hole 523 is a flat hole, and the shape of the third through hole 523 matches the outer contour of the carrying portion 13 .
  • the first friction plate 52 is located between the rotating wheel 41 and the second connecting body 32 and is fixedly connected to the rotating shaft 10 .
  • the bearing part 13 passes through the third through hole 523, so that the first friction plate 52 is installed on the outer periphery of the bearing part 13, and the first surface 521 contacts and abuts the first surface 414 of the rotating wheel 41, and the second surface 522 contacts and abuts the second side 322 of the second connecting body 32 .
  • the flat portion 131 of the bearing portion 13 faces the flat portion 131 of the third through hole 523
  • the arc portion 132 of the bearing portion 13 faces the arc portion 132 of the third through hole 523 , so that the first friction plate 52 is fixedly installed on Carrying part 13.
  • the elastic member 50 is in a compressed state and has elastic restoring force.
  • the elastic restoring force generated by the elastic member 50 acts on the rotating wheel 41 through the fixed wheel 42, and acts on the first friction plate 52 from the rotating wheel 41, and then acts on the second bracket 30 by the first friction plate 52, thereby increasing the rotation.
  • the action force between the wheel 41 and the first friction plate 52, and the action force between the first friction plate 52 and the second bracket 30 can thereby increase the friction force between the rotating wheel 41 and the first friction plate 52, and the friction force between the first friction plate 52 and the second bracket 30 to further increase the damping force received by the rotating shaft assembly 100 during the rotation process, further improving the user's damping feel and improving the user's use experience.
  • the stopper piece 53 is a circular piece with a through hole in the middle.
  • the two opposite surfaces of the stop piece 53 are both rough surfaces.
  • the stopper piece 53 is provided with a fourth through hole 531 .
  • the fourth through hole 531 is a flat hole, and the shape of the fourth through hole 531 matches the outer contour of the carrying portion 13 .
  • the structure of the stop plate 53 is the same as that of the first friction plate 52 . In other embodiments, the structure of the stopper plate 53 may also be different from the structure of the first friction plate 52 .
  • the stop piece 53 is located between the fixing member 51 and the elastic member 50 and is fixedly connected to the rotating shaft 10 .
  • the load-bearing part 13 passes through the fourth through hole 531 so that the stopper piece 53 is installed on the outer periphery of the load-bearing part 13 , and the two opposite surfaces of the stopper piece 53 contact and abut with the fixing piece 51 and the elastic piece 50 respectively. .
  • the stop piece 53 and the fixing member 51 are driven to rotate.
  • the stop piece 53 by providing the stop piece 53, the fixing member 51 can be prevented from loosening, and the stability of the connection between the fixing member 51 and the rotating shaft 10 can be increased, thereby improving the structural stability of the rotating shaft assembly 100.
  • the rotating shaft assembly 100 when the rotating shaft assembly 100 is in a closed state, the first bracket 20 and the second bracket 30 are relatively folded, and the elastic member 50 is in a compressed state.
  • the first bracket 20 and the second bracket 30 form a first included angle ⁇ , and the elastic member 50 is maintained in a compressed state.
  • the rotating shaft assembly 100 rotates from the closed state to the unfolded state, and the first bracket 20 rotates in a direction away from the second bracket 30 relative to the second bracket 30, the first bracket 20 drives the rotating shaft 10 to rotate, and makes the rotating shaft 10 rotate relative to the second bracket 30 and the second bracket 30.
  • the rotating wheel 41 rotates.
  • the rotating shaft 10 when the rotating shaft 10 rotates, it also drives the fixed wheel 42, the first friction plate 52, the stopper plate 53 and the fixing member 51 to rotate.
  • the rotating shaft 10 rotates relative to the second bracket 30 , friction is generated between the side surface of the protruding portion 14 and the first side surface 321 .
  • the fixed wheel 42 rotates relative to the rotating wheel 41, friction force is generated between the first friction surface 413 and the second friction surface 421.
  • the first friction plate 52 rotates relative to the rotating wheel 41 and the second bracket 30 , friction force is generated between the first surface 521 and the first surface 414 , and friction force is generated between the second surface 522 and the second side surface 322 .
  • the friction between the protrusion 14 and the second bracket 30, the friction between the fixed wheel 42 and the rotating wheel 41, the friction between the first friction plate 52 and the rotating wheel 41 and the second bracket 30 can all be prevented.
  • the rotation of the rotating shaft 10 provides a damping force for the rotation of the rotating shaft assembly 100 to improve the user's damping feel.
  • the elastic members 50 are in a compressed state and have elastic restoring force.
  • This elastic restoring force exerts force on the fixed wheel 42, the rotating wheel 41, the first friction plate 52 and the second bracket 30, which can increase the friction between the protrusion 14 and the second bracket 30, the fixed wheel 42 and the second bracket 30.
  • the friction force between the rotating wheels 41, the friction force between the first friction plate 52, the rotating wheel 41 and the second bracket 30 can further increase the damping force received by the rotating shaft assembly 100 during the rotation process, thereby further improving the The user's damping feel.
  • the first friction surface 413 of the rotating wheel 41 and the second friction surface 421 of the fixed wheel 42 are both flat grinding surfaces.
  • the force is a constant value. It can be understood that during the entire opening and closing process, the damping force received by the rotating shaft assembly 100 is a constant value, and there is no climbing force, that is, the climbing magnification is 1, which is conducive to realizing the one-hand opening and closing of the foldable device 200 and improves user comfort. usage experience.
  • configuring the first friction surface 413 and the second friction surface 421 as flat grinding surfaces can also simplify the structures of the rotating wheel 41 and the fixed wheel 42, simplify the processing technology of the rotating wheel 41 and the fixed wheel, and reduce the production cost. At the same time, This makes it easier to realize normalization and standardized design of the rotating wheel 41 and the fixed wheel.
  • FIG. 7 is a schematic structural diagram of the rotating shaft assembly 100 provided in the second embodiment of the present application.
  • FIG. 8 is an exploded structural schematic diagram of the rotating shaft assembly 100 shown in FIG. 7 .
  • the rotating shaft assembly 100 provided by this embodiment also includes an auxiliary rotating wheel 70 , an auxiliary friction plate 71 and an auxiliary elastic member 72 .
  • the structure of the auxiliary rotating wheel 70 is the same as that of the rotating wheel 41 .
  • the auxiliary rotating wheel 70 includes an auxiliary rotating wheel body 701 and an auxiliary extending body 702 .
  • the auxiliary extension body 702 extends from the outer ring surface of the auxiliary rotating wheel body 701 in a direction away from the auxiliary rotating wheel body 701 .
  • the auxiliary rotating wheel body 701 is provided with a through hole penetrating the auxiliary rotating wheel body 701 along the axial direction.
  • the auxiliary rotating wheel 70 is installed on the connecting portion 12 of the rotating shaft 10 and is rotationally connected with the rotating shaft 10 .
  • the connecting part 12 passes through the through hole of the auxiliary rotating wheel body 701, so that the auxiliary rotating wheel body 701 is sleeved on the outer periphery of the connecting part 12, and the surface of the auxiliary rotating wheel body 701 is in contact with the side of the protruding part 14, and the auxiliary extension body 702 Located in the third mounting hole 34.
  • the auxiliary extension body 702 can drive the auxiliary rotating wheel body 701 to rotate relative to the rotating shaft 10 .
  • the structure of the auxiliary friction plate 71 is the same as that of the first friction plate 52 .
  • the auxiliary friction plate 71 is installed on the outer periphery of the connecting portion 12 and is fixedly connected to the rotating shaft 10 .
  • the auxiliary friction plate 71 is located on the side of the auxiliary rotating wheel 70 facing away from the protruding portion 14 .
  • the connecting part 12 is provided with a flat shaft section, and the auxiliary friction plate 71 is provided with a flat hole that matches the flat shaft section.
  • the flat shaft section of the connecting part 12 passes through the flat hole of the auxiliary friction plate 71 so that the auxiliary friction plate 71 is fixedly connected to the connecting part 12 .
  • the structure of the auxiliary elastic member 72 is the same as that of the elastic member 50 .
  • the auxiliary elastic member 72 is installed on the outer periphery of the connecting portion 12 and is located on the side of the auxiliary friction plate 71 facing away from the auxiliary rotating wheel 70 .
  • the auxiliary elastic member 72 is in a compressed state and generates elastic restoring force.
  • the elastic restoring force generated by the auxiliary elastic member 72 presses the auxiliary friction plate 71 and the auxiliary rotating wheel 70 in the axial direction toward the protruding portion 14 to increase the acting force between the auxiliary rotating wheel 70 and the protruding portion 14 , and The acting force between the auxiliary friction plate 71 and the auxiliary rotating wheel 70.
  • the first bracket 20 drives the rotating shaft 10 to rotate, and makes the rotating shaft 10 rotate relative to the second bracket 30 and the second bracket 30.
  • the auxiliary rotating wheel 70 rotates.
  • the rotating shaft 10 rotates, it also drives the auxiliary friction plate 71 to rotate.
  • the auxiliary rotating wheel 70 rotates relative to the rotating shaft 10 , friction force is generated between the auxiliary rotating wheel 70 and the side surface of the protruding portion 14 .
  • the auxiliary rotating wheel 70 rotates relative to the auxiliary friction plate 71 , friction force is generated between the auxiliary friction plate 71 and the auxiliary rotating wheel 70 .
  • the damping force received by the rotating shaft assembly 100 when rotating can be further increased.
  • the acting force between the auxiliary friction plate 71 and the auxiliary rotating wheel 70 can be increased, as well as the acting force between the auxiliary rotating wheel 70 and the protruding portion 14, thereby increasing the friction force of the auxiliary friction plate. 71 and the auxiliary rotating wheel 70, as well as the friction force between the auxiliary rotating wheel 70 and the protruding portion 14, to further increase the damping force when the rotating shaft assembly 100 rotates.
  • FIG. 9 is a schematic structural diagram of the rotating shaft assembly 100 provided by the third embodiment of the present application.
  • FIG. 10 is an exploded structural schematic diagram of the rotating shaft assembly 100 shown in FIG. 9 .
  • the difference between the rotating shaft assembly 100 provided in this embodiment and the rotating shaft assembly 100 shown in FIG. 2 is that the rotating shaft assembly 100 provided in this embodiment also includes a second friction plate 54 , and the rotating wheel 41 in this embodiment is different from the rotating shaft assembly 100 in FIG. 2 The structure of the rotating wheel 41 is different.
  • the rotating wheel 41 includes a first body 411, a second body 417 and an extension body 412.
  • the extension body 412 is fixedly connected to the first body 411 , and the extension body 412 extends from the outer ring surface of the first body 411 in a direction away from the first body 411 .
  • the second body 417 is parallel to and spaced apart from the first body 411 , and the second body 417 is fixedly connected to the extension body 412 .
  • the rotating wheel 41 is installed on the bearing portion 13 of the rotating shaft 10 and is rotationally connected to the rotating shaft 10 , and the extension body 412 is fixedly connected to the second bracket 30 . When the second bracket 30 rotates relative to the rotating shaft 10 , the extension body 412 can drive the first body 411 and the second body 417 to rotate relative to the rotating shaft 10 .
  • the structure of the second friction plate 54 is the same as that of the first friction plate 52 .
  • the second friction plate 54 is installed on the bearing portion 13 of the rotating shaft 10 and is fixedly connected to the rotating shaft 10 .
  • the second friction plate 54 is located between the first body 411 and the second body 417 and contacts the first body 411 and the second body 417 .
  • friction force is generated between the second friction plate 54 and the first body 411 and the second body 417 to prevent the rotation of the rotating shaft 10 and provide damping force for the rotating shaft assembly 100 .
  • both the first body 411 and the second body 417 are in contact with the second friction plate 54.
  • the friction force generated between the two friction plates 54 can further increase the damping force received by the rotating shaft assembly 100 during the rotation process, thereby further improving the user's damping feel.
  • the second body 417 may also include multiple sub-bodies.
  • the multiple sub-bodies are spaced apart from the first body 411 along the axial direction, and are spaced apart from each other. There are two adjacent sub-bodies between two adjacent sub-bodies.
  • a friction plate is provided to further increase the damping force received by the rotating shaft assembly 100 when rotating.

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Abstract

一种转轴组件（100）和可折叠装置（200），转轴组件（100）包括：转轴（10）、第一支架（20）、第二支架（30）、转动轮（41）和固定轮（42）。第一支架（20）与转轴（10）固定连接。转动轮（41）包括第一摩擦面（413），固定轮（42）包括第二摩擦面（421），第一摩擦面（413）和第二摩擦面（421）均为平面。转动轮（41）和固定轮（42）均套于转轴（10）的外周，且第一摩擦面（413）与第二摩擦面（421）接触，固定轮（42）与转轴（10）固定连接，转动轮（41）与转轴（10）转动连接。第二支架（30）与转轴（10）转动连接，并与转动轮（41）固定连接。第一支架（20）相对第二支架（30）转动时，带动转轴（10）转动，以带动固定轮（42）转动，并使第一摩擦面（413）和第二摩擦面（421）之间产生摩擦力。

Description

转轴组件和可折叠装置
本申请要求于2022年04月21日提交中国专利局、申请号为202210420049.7、申请名称为“转轴组件和可折叠装置”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，尤其涉及一种转轴组件和可折叠装置。
背景技术
随着科技的发展，电子产品由于其便携性受到越来越多人的青睐。对于需要翻转开启的电子设备，例如笔记本电脑，经常会遇到需要单手打开的时候。然而，现有技术中的笔记本电脑难以单手开合，这会对用户造成不便，影响用户的使用体验。
发明内容
本申请提供一种转轴组件和可折叠装置，以解决现有技术中的可折叠装置难以实现单手开合的技术问题。
为解决以上问题，本申请提供一种转轴组件，包括：转轴、第一支架、第二支架、转动轮和固定轮。所述第一支架与所述转轴固定连接。所述转动轮包括第一摩擦面，所述转动轮包括第二摩擦面，所述第一摩擦面和所述第二摩擦面均为平面。所述转动轮和所述固定轮均套于所述转轴的外周，且所述第一摩擦面与所述第二摩擦面接触，所述固定轮与所述转轴固定连接，所述转动轮与所述转轴转动连接。所述第二支架与所述转轴转动连接，并与所述转动轮固定连接。所述第一支架相对所述第二支架转动时，带动所述转轴转动，以带动所述固定轮转动，并使所述第一摩擦面和所述第二摩擦面之间产生摩擦力。
转轴组件应用于可折叠装置中，可折叠装置包括主机和显示器。第一支架与显示器固定连接，第二支架与主机固定连接。转轴组件位于主机和显示器之间，以使主机和显示器转动连接。主机和显示器可通过转轴组件相对转动，使得可折叠装置在展开和闭合之间相互切换，从而实现可折叠装置的打开或闭合。
本实施例中，通过在转动轮设置第一摩擦面，并在固定轮设置与第一摩擦面接触的第二摩擦面，使得转动轮和固定轮相对转动时，第一摩擦面和第二摩擦面之间产生摩擦力。该摩擦力可以为转轴组件的转动提供阻尼力，从而为用户提供阻尼手感，并使转轴组件可以在任一角度悬停，以提升用户的使用体验。
并且，第一摩擦面和第二摩擦面均为平磨面，在转轴组件转动过程中，第一摩擦面与第二摩擦面之间的摩擦力为恒定值。可以理解，转轴组件在整个开合过程中，受到的阻尼力为恒定值，无爬坡力，也就是爬坡倍率为1，从而有利于实现可折叠装置的单手开合，提升用户的使用体验。此外，将第一摩擦面和第二摩擦面设置为平磨面，还可以简化固定轮和转动轮的结构，简化固定轮和转动轮的加工工艺，降低生成成本，同时，使得固定轮和转动轮更容易实现归一化和标准化设计。
一种实施方式中，所述第一支架相对所述第二支架转动时，所述固定轮和所述转动轮之间的摩擦力为恒定值。
本实施例中，固定轮和转动轮之间的摩擦力为恒定值，也就是，固定轮和转动轮为转轴组件提供的阻尼力为恒定值。因此，转动第一支架使转轴组件由闭合状态转换至打开状态时，无需爬坡力，也就是爬坡倍率为1，从而有利于实现可折叠装置的单手开合，提升用户的使用体验。
一种实施方式中，所述第一摩擦面的摩擦系数为0.1～0.12；所述第二摩擦面的摩擦系数为0.1～0.12。
本实施例中，通过将第一摩擦面和第二摩擦面的摩擦系数均设于0.1～0.12，以使第一摩擦面和第二摩擦面之间的摩擦力处于合适范围内，从而避免转轴组件在转动过程中受到的阻尼力不至于过大导致难以开合，也不至于过小，导致提供的阻尼手感不足，或者无法在打开状态下实现悬停。
一种实施方式中，所述转动轮包括第一本体和延伸体，所述延伸体与所述第一本体固定连接，并朝向远离所述第一本体方向延伸；所述第一本体套于所述转轴的外周，并与所述转轴转动连接，所述延伸体与所述第二支架固定连接。
第二支架设有第三安装孔，延伸体位于第三安装孔内。第二支架固定时，带动转动轮保持固定。本实施例中，通过在转动轮设置延伸体，并通过延伸体与第二支架固定，实现转动轮与第二支架的固定连接，可以简化转轴组件的结构。
一种实施方式中，所述转动轮还包括第二本体，所述第二本体与所述第一本体平行且间隔设置，所述第二本体与所述延伸体固定连接。所述转轴组件还包括第二摩擦片，所述第二摩擦片位于所述第一本体和所述第二本体之间，并与所述第一本体和所述第二本体接触，且所述第二摩擦片与所述转轴固定连接。
本实施例中，通过在转动轮设置第一本体和第二本体，并在第一本体和第二本体之间设置第二摩擦片，使得转动轮相对第二摩擦片转动时，第一本体和第二本体均与第二摩擦片之间产生摩擦力，从而可以进一步增大转轴组件在转动过程中受到的阻尼力，以进一步提升用户的阻尼手感。
一种实施方式中，所述转轴包括承载部，所述承载部为扁轴，所述承载部的外周面包括平面部分和弧面部分，所述平面部分与所述弧面部分连接；所述固定轮设有第二通孔，所述第二通孔的轮廓与所述承载部的外轮廓一致；所述承载部安装于所述第二通孔内，且所述承载部转动可带动所述固定轮同步转动。
本实施例中，通过将承载部设置为扁轴，且固定轮的第二通孔与扁轴相适配，即可实现固定轮与承载部的固定连接，无需额外增加用于固定连接的结构件，从而可以简化转轴组件的结构。
一种实施方式中，所述转轴组件包括弹性件，所述弹性件套于所述转轴的外周，且所述弹性件处于压缩状态，并抵持所述固定轮，以使所述固定轮抵持所述转动轮。
本实施例中，通过设置弹性件，且弹性件处于压缩状态，具有弹性恢复力。弹性件产生的弹性恢复力作用于固定轮，并由固定轮作用于转动轮，进而可以增大弹性件与固定轮之间的摩擦力，同时增大固定轮与转动轮之间的摩擦力，从而可以进一步增大转轴组件在 转动过程中受到的阻尼力，进一步提升用户的阻尼手感，提升用户的使用体验。
一种实施方式中，所述弹性件为碟簧组或弹簧，或所述弹性件的材质为弹性体材料。
本实施例中，采用碟簧组作为弹性件，可以简化转轴组件的结构，减小转轴组件的尺寸，有利于实现可折叠装置的轻薄化。并且，在使用过程中，可以根据实际使用需求，调节碟簧组中碟簧的数量，以调整碟簧组提供的作用力，从而达到调节转轴组件在转动过程中受到的阻尼力大小，进而可以增加碟簧组的适用性，降低转轴组件的成本。采用弹簧或者弹性体材料作为弹性件成本低。
一种实施方式中，所述转轴组件包括第一摩擦片，所述第一摩擦片与所述转轴固定连接，且所述第一摩擦片位于所述转动轮和所述第二支架之间，并与所述转动轮和所述第二支架抵持。
第一支架相对第二支架转动时，带动转轴相对第二支架转动，从而带动第一摩擦片相对转动轮和第二支架转动。第一摩擦片相对转动轮转动时，第一摩擦片与转动轮之间产生摩擦力，该摩擦力通过阻止第一摩擦片转动以阻止转轴转动，从而为转轴组件的转动提供阻尼力。第一摩擦片相对第二支架转动时，第一摩擦片与第二支架之间产生摩擦力，该摩擦力可以进一步阻止转轴转动，以进一步增大转轴组件受到的阻尼力，提升用户的阻尼手感。
一种实施方式中，所述转动轮包括第一表面，所述第一表面为平面，所述第一表面与所述第一摩擦面相对设置，且所述第一表面与所述第一摩擦片接触。
第一支架相对第二支架转动时，带动转轴相对第二支架转动时，转轴带动第一摩擦片转动，以使第一摩擦片相对转动轮转动，并使第一摩擦片与第一表面之间产生摩擦力。该摩擦力通过阻止第一摩擦片转动以阻止转轴转动，从而为转轴组件的转动提供阻尼力。
一种实施方式中，所述转轴组件还包括固定件，所述固定件固定于所述转轴背向所述第一支架的一端，且所述弹性件、所述固定轮、所述转动轮和所述第二支架均位于所述固定件和所述第一支架之间。
本实施例中，固定件为螺母。在其他实施例中，固定件也可以是其它固定元件。固定件用于固定弹性件，以使弹性件稳定安装于转轴，同时使转动轮、固定轮和第二支架稳定安装于转轴，以避免第二支架、转动轮、固定轮和弹性件从转轴的端部脱离，从而可以增加转轴组件结构的稳定性。
一种实施方式中，所述转轴组件还包括止档片，所述止档片位于所述固定件和所述弹性件之间，并与所述转轴固定连接，且所述止档片与所述固定件抵接。
转轴相对第二支架转动时，带动止档片和固定件转动。本实施例中，通过设置止档片，以增大固定件与止档片之间的摩擦力，从而可以避免固定件从转轴脱离，进而可以提升转轴组件结构的稳定性。
一种实施方式中，所述转轴还包括连接部和凸出部，所述连接部、所述凸出部和所述承载部沿所述转轴的轴向固定连接，所述凸出部的外径大于所述连接部和所述承载部的外径。所述转动轮安装于所述承载部，所述转轴组件还包括辅助转动轮，所述辅助转动轮转动安装于所述连接部，并与所述第二支架固定连接，且所述辅助转动轮于所述凸出部的侧面接触。
本实施例中，第一支架相对第二支架转动时，带动转轴相对第二支架转动，并使转轴相对辅助转动轮转动，从而使辅助转动轮和凸出部之间产生摩擦力，以进一步增大转轴组件在转动过程中受到的阻尼力。
一种实施方式中，所述转轴组件还包括辅助弹性件，所述辅助弹性件安装于所述连接部，并位于所述辅助转动轮背向所述凸出部的一侧，所述辅助弹性件处于压缩状态，以挤压所述辅助转动轮。
本实施例中，通过设置辅助弹性件，且辅助弹性件压缩可挤压辅助转动轮，从而可以增大辅助转动轮与凸出部之间的作用力，进而可以增大辅助转动轮与凸出部之间的摩擦力。
一种实施方式中，所述转轴组件还包括辅助摩擦片，所述辅助摩擦片安装于所述连接部，并与所述连接部固定连接；所述辅助摩擦片位于所述辅助转动轮和所述辅助弹性件之间，且所述辅助弹性件抵持所述辅助摩擦片。
本实施例中，通过设置辅助摩擦片，且辅助摩擦片与辅助转动轮接触，转轴相对第二支架转动时，辅助摩擦片相对辅助转动轮转动，从而使辅助摩擦片与辅助转动轮之间产生摩擦力，进而可以进一步增大转轴组件转动时受到的阻尼力。
本申请还提供一种可折叠装置，包括主机、显示器和上述转轴组件，所述转轴组件连接所述主机和所述显示器之间，所述转轴组件转动时，所述显示器和所述主机相对转动。
主机用于执行信息，显示器用于显示主机执行的信息处理的结果。转轴组件连接主机和显示器，以使主机和显示器转动连接。主机和显示器可通过转轴组件相对转动，使得可折叠装置在展开和闭合之间相互切换，从而实现可折叠装置的打开或闭合。可折叠装置处于闭合状态时，主机和显示器层叠设置。此时，显示器的显示面位于可折叠装置的内侧，可以大大降低对显示器被损坏的概率，实现对显示器的有效保护。并且，可折叠装置处于闭合状态时，体积小，易于携带。可折叠装置处于展开状态时，主机和显示器之间具有第一夹角。可折叠装置处于展开状态时，可以便于用户操作和使用。
一种实施方式中，所述可折叠装置还包括第一磁性件和第二磁性件，所述第一磁性件安装于所述显示器，所述第二磁性件安装于所述主机，所述显示器相对所述主机闭合时，所述第一磁性件和所述第二磁性件磁性相吸。
本实施例中，通过在显示器设置第一磁性件，在主机设置第二磁性件，在显示器设置可折叠装置处于闭合状态时，第一磁性件和第二磁性件位置对应并磁性相吸，从而可以提升主机和显示器闭合的稳定性，避免用户在手提可折叠装置时，显示器和主机之间由于重力作用展开。
综合上述，本申请通过在转动轮设置第一摩擦面，并在固定轮设置与第一摩擦面接触的第二摩擦面，使得转动轮和固定轮相对转动时，第一摩擦面和第二摩擦面之间产生摩擦力。该摩擦力可以为转轴组件的转动提供阻尼力，从而为用户提供阻尼手感，并使转轴组件可以在任一角度悬停，以提升用户的使用体验。
并且，第一摩擦面和第二摩擦面均为平磨面，在转轴组件转动过程中，第一摩擦面与第二摩擦面之间的摩擦力为恒定值。可以理解，转轴组件在整个开合过程中，受到的阻尼力为恒定值，无爬坡力，也就是爬坡倍率为1，从而有利于实现可折叠装置的单手开合，提升用户的使用体验。此外，将第一摩擦面和第二摩擦面设置为平磨面，还可以简化固定 轮和转动轮的结构，简化固定轮和转动轮的加工工艺，降低生成成本，同时，使得固定轮和转动轮更容易实现归一化和标准化设计。
附图说明
为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
图1是本申请实施例提供的可折叠装置的结构示意图；
图2是图1所示可折叠装置中的转轴组件的结构示意图；
图3是图2所示转轴组件的分解结构示意图；
图4是图2所示转轴组件中的转轴的结构示意图；
图5是图2所示转轴组件的部分分解结构示意图；
图6是图3所示转轴组件中的固定轮和转动轮的结构示意图；
图7是本申请第二实施例提供的转轴组件的结构示意图；
图8是图7所示转轴组件的分解结构示意图；
图9是本申请第三实施例提供的转轴组件的结构示意图；
图10是图9所示转轴组件的分解结构示意图。
具体实施方式
下面结合本申请实施例中的附图对本申请实施例进行描述。
请参阅图1，图1是本申请实施例提供的可折叠装置200的结构示意图。
本申请实施例提供的可折叠装置200包括但不限于笔记本电脑、折叠手机、平板电脑、膝上型电脑、个人数字助理或可穿戴式设备等电子产品。以下以可折叠装置200为笔记本电脑进行说明。
为了便于描述，将可折叠装置200的长度方向定义为X方向，将可折叠装置200的宽度方向定义为Y方向，将可折叠装置200的厚度方向定义为Z方向。X方向、Y方向和Z方向两两相互垂直。
可折叠装置200包括主机110、显示器120和转轴组件100。主机110用于执行信息，显示器120用于显示主机110执行的信息处理的结果。转轴组件100连接主机110和显示器120，以使主机110和显示器120转动连接。主机110和显示器120可通过转轴组件100相对转动，使得可折叠装置200在展开和闭合之间相互切换，从而实现可折叠装置200的打开或闭合。本实施例中，转轴组件100为一个，转轴组件100位于主机110在X方向的中部，以保证可折叠装置200转动的稳定性。在其他实施例中，转轴组件100也可以是两个以上。当转轴组件100为两个时，两个转轴组件100沿X方向并排间隔设置，且两个转轴组件100对称设置，以保证主机110和显示器120连接的稳定性，同时保证可折叠装置200转动的稳定性。
可折叠装置200处于闭合状态时，主机110和显示器120层叠设置。此时，显示器120的显示面位于可折叠装置200的内侧，可以大大降低对显示器120被损坏的概率，实现对显示器120的有效保护。并且，可折叠装置200处于闭合状态时，体积小，易于携带。可 折叠装置200处于展开状态时，主机110和显示器120之间具有第一夹角α。第一夹角α大于0度且小于或等于180度。例如，第一夹角α可以为90度、100度或者120度等。可折叠装置200处于展开状态时，可以便于用户操作和使用。
可折叠装置200还包括第一磁性件230和第二磁性件240。本实施例中，第一磁性件230和第二磁性件240均为磁铁，且第一磁性件230和第二磁性件240磁性相吸。当然，第一磁性件230和第二磁性件240也可以是电磁铁。或者，第一磁性件230为磁铁，第二磁性件240为亲磁金属，如铁、钴或镍。或者，第二磁性件240为磁铁，第一磁性件230为亲磁金属。第一磁性件230安装于显示器120，第二磁性件240安装于主机110，且第一磁性件230的位置与第二磁性件240的位置相对。
本实施例中，第一磁性件230和第二磁性件240均为一个，且第一磁性件230位于显示器120顶边边缘的中间位置，第二磁性件240位于主机边缘的中间位置。在其他实施例中，第一磁性件230也可以位于显示器120侧边的边缘，第二磁性件240位于主机侧边的边缘。第一磁性件230可以为两个或者三个以上，第二磁性件也可以为两个或者三个以上。本申请实施例不对第一磁性件230和第二磁性件240的数量的分布做具体限制，只要显示器120相对主机110闭合时，第一磁性件230和第二磁性件240磁性相吸即可。
可折叠装置200处于闭合状态时，第一磁性件230和第二磁性件240位置对应并磁性相吸，从而可以提升主机110和显示器120闭合的稳定性，避免用户在手提可折叠装置200时，显示器120和主机110之间由于重力作用展开。并且，在显示器120转动至与主机110之间的角度较小时，第一磁性件230和第二磁性件240之间的吸引力会使显示器120朝向主机110方向转动，从而可以实现可折叠装置200的自动闭合，以进一步提高用户的使用体验。
请参阅图2和图3，图2是图1所示可折叠装置200中的转轴组件100的结构示意图，图3是图2所示转轴组件100的分解结构示意图。
转轴组件100包括转轴10、第一支架20、第二支架30、转动轮41、固定轮42、弹性件50、固定件51、第一摩擦片52和止档片53。第二支架30、第一摩擦片52、转动轮41、固定轮42、弹性件50、止档片53和固定件51依次套于转轴10的外周侧。其中，第一支架20、第一摩擦片52、固定轮42、止档片53和固定件51均与转轴10固定连接，第二支架30、转动轮41和弹性件50均与转轴10转动连接。第一支架20相对第二支架30转动时，带动转轴10相对第二支架30转动，转轴10并带动固定轮42、第一摩擦片52、止档片53和固定件51同步转动，并使转轴10相对转动轮41和弹性件50转动，进而实现第一支架20相对第二支架30转动，并使转轴组件100在展开和闭合状态下切换。可以理解的是，转轴组件100处于闭合状态时，第一支架20和第二支架30层叠设置。第一支架20朝向远离第二支架30方向转动，直至第一支架20和第二支架30之间的夹角为第一夹角α，以使转轴组件100处于打开状态。
请参阅图4，图4是图2所示转轴组件100中的转轴10的结构示意图。
转轴10包括固定部11、连接部12、承载部13和凸出部14。固定部11、凸出部14、连接部12和承载部13沿着转轴10的轴向依次固定连接，且凸出部14的外径大于固定部11、连接部12和承载部13。固定部11为扁平板体结构。固定部11设有固定孔15。固定 孔15在厚度方向贯穿固定部11。本实施例中，固定孔15为两个。两个固定孔15沿固定部11的长度方向间隔排列。固定部11用于与第一支架20固定连接。承载部13为扁轴。承载部13的外周面包括平面部分131和弧面部分132。平面部分131和弧面部分132连接，形成承载部13的外周面。外周面是指绕着轴线的面。可以理解，承载部13的垂直于轴线的横截面具有弧形边和直线边。
连接部12为圆柱形。连接部12位于固定部11和承载部13之间，且连接部12的一端与固定部11固定连接，另一端与承载部13固定连接。固定部11、连接部12和承载部13的延伸方向一致。凸出部14凸设于连接部12的外周，并与凸出部14固定连接。并且，凸出部14位于靠近承载部13的一侧。凸出部14的外轮廓可以是圆形，也可以是不规则形状。凸出部14的外径大于连接部12和承载部13的最大直径。
本实施例中，连接部12与固定部11、承载部13和凸出部14为一体成型。也就是，转轴10为一体成型件，以保证转轴10结构的稳定性。在其他实施例中，连接部12也可以通过焊接或者其他连接方式与固定部11、承载部13和凸出部14的固定连接。
请参阅图5，图5是图2所示转轴组件100的部分分解结构示意图。
第一支架20包括第一支撑体21和第一连接体22。第一支撑体21和第一连接体22均为板状结构。第一连接体22与第一支撑体21的一侧固定连接且呈阶梯式分布。第一连接体22的结构与第一固定部11的结构相适配。第一连接体22设有第一安装孔23。本实施例中，第一安装孔23为两个。两个第一安装孔23并排间隔设置，且第一安装孔23与固定孔15相匹配。第一连接体22用于与转轴10的固定部11固定连接。
转轴组件100还包括螺栓60。本实施例中，螺栓60为两个。第一支架20安装于转轴10的固定部11。第一连接体22安装于固定部11的表面，一个第一安装孔23对准一个固定孔15。其中一个螺栓60穿过一个第一安装孔23和对应的固定孔15，并与固定部11固定连接；另一个螺栓60穿过另一个第一安装孔23和对应的固定孔15，并与固定部11固定连接，从而使第一支架20与转轴10固定连接。在其他实施例中，第一支架20也可以通过粘接、焊接或者其他连接方式与转轴10固定连接。
第二支架30包括第二支撑体31和第二连接体32。第二支撑体31和第二连接体32均为板状结构。第二连接体32与第二支撑体31固定连接。本实施例中，第二连接体32所在的平面与第二支撑体31所在的平面垂直。在其他实施例中，第二连接体32所在的平面和第二支撑体31所在的平面之间的夹角也可以大于90度，或小于90度。
第二连接体32远离第二支撑体31的一端的外轮廓为半圆形。第二连接体32包括第一侧面321和第二侧面322。第一侧面321和第二侧面322相对设置。第二连接体32设有第二安装孔33和第三安装孔34。第二安装孔33和第三安装孔34间隔设置，且第二安装孔33和第三安装孔34均贯穿第一侧面321和第二侧面322。其中，第二安装孔33位于第二连接体32远离第二支撑体31的一端，第三安装孔34位于第二安装孔33和第二支撑体31之间。第二安装孔33为圆孔，且第二安装孔33的直径大于承载部13的最大直径。第三安装孔34为方形孔，第三安装孔34用于与转动轮41连接。在其他实施例中，第三安装孔34也可以是圆形或者其他形状。
第二支架30安装于转轴10的承载部13，且第二支架30可相对转轴10转动。其中， 转轴10的承载部13穿过第二安装孔33，以使第二连接体32套于承载部13的外周，且第二连接体32的第二侧面322与凸出部14接触。
第一支撑体21用于与显示器120固定连接，第二支撑体31用于与主机110固定连接。显示器120相对主机110转动时，带动第一支撑体21转动，第一支撑体21通过第一连接体22带动转轴10转动，并使转轴10在第二安装孔33内转动，以使转轴10相对第二连接体32转动，从而使第一支架20和第二支架30相对转动，并实现转轴组件100和可折叠装置200的转动。
请参阅图6，图6是图3所示转轴组件100中的固定轮42和转动轮41的结构示意图。
转动轮41包括第一本体411和延伸体412。第一本体411为圆盘状，并具有第一外环面416。延伸体412与第一本体411固定连接，且延伸体412由第一本体411的第一外环面416朝向远离第一本体411方向延伸。本实施例中，延伸体412的延伸方向与第一本体411的轴线方向平行。当然，延伸体412的延伸方向与第一本体411的轴线方向也可以有少量偏差。
第一本体411包括第一摩擦面413和第一表面414。第一摩擦面413和第一表面414相对设置，且第一摩擦面413和第一表面414分别位于第一本体411在其轴线方向的相对两侧。第一外环面416连接第一摩擦面413和第一表面414。第一摩擦面413和第一表面414均为平面。本实施例中，第一摩擦面413的摩擦系数为0.1～0.12。在其他实施例中，第一摩擦面413的摩擦系数也可以大于0.12，或者大于0小于0.1。第一摩擦面413可通过磨砂处理以增加摩擦系数。或者，第一摩擦面413可通过涂覆摩擦涂层，以增加第一摩擦面413的摩擦系数。转动轮41设有第一通孔415，第一通孔415贯穿第一表面414和第一摩擦面413。本实施例中，第一通孔415为圆孔，且第一通孔415的直径大于承载部13的最大直径。
固定轮42的外轮廓为圆盘状。固定轮42包括第二摩擦面421、第二表面422和第二外环面424。第二摩擦面421和第二表面422相对设置，且第二摩擦面421和第二表面422分别位于第一本体411在其轴线方向的相对两侧。第二外环面424连接第二摩擦面421和第二表面422。第二摩擦面421和第二表面422均为平面。本实施例中，第二摩擦面421的摩擦系数为0.1～0.12。在其他实施例中，第二摩擦面421的摩擦系数也可以大于0.12，或者大于0小于0.1。第二摩擦面421可通过磨砂处理以增加摩擦系数。或者，第二摩擦面421可通过涂覆摩擦涂层，以增加第二摩擦面421的摩擦系数。固定轮42设有第二通孔423。第二通孔423为扁平状，且第二通孔423的形状与承载部13的外轮廓相匹配。
转动轮41和固定轮42均安装于转轴10的承载部13，且转动轮41与转轴10转动连接，固定轮42与转轴10固定连接。承载部13穿过第一通孔415，以使第一本体411套于承载部13的外周。其中，第一表面414朝向第二支架30的第二侧面322，延伸体412位于第三安装孔34内。第二支架30相对转轴10转动时，可通过延伸体412带动第一本体411相对转轴10转动。
承载部13穿过第二通孔423，以使固定轮42套于承载部13的外周。固定轮42位于转动轮41背向第二支架30的一侧，且第二摩擦面421与第一摩擦面413相对并接触。第二通孔423的平面部分与承载部13的平面部分131相对，第二通孔423的弧面部分与承载 部13的弧面部分132相对，以使固定轮42与承载部13固定连接。转轴10转动时，可带动固定轮42同步转动。
第一支架20相对第二支架30转动时，带动转轴10的固定部11转动，并带动连接部12、凸出部14和承载部13同步转动，使承载部13在第二安装孔33和第一通孔415内转动。凸出部14相对第二支架30转动时，凸出部14的侧面相对第一侧面321转动，并产生摩擦力。承载部13转动时，还带动固定轮42转动，并使固定轮42相对转动轮41转动，而转动轮41不转动，第一摩擦面413和第二摩擦面421相对转动，并产生摩擦力。
本实施例中，通过在转动轮41设置第一摩擦面413，并在固定轮42设置与第一摩擦面413接触的第二摩擦面421，使得转动轮41和固定轮42相对转动时，第一摩擦面413和第二摩擦面421之间产生摩擦力。该摩擦力可以为转轴组件100的转动提供阻尼力，从而为用户提供阻尼手感，并使转轴组件100可以在任一角度悬停，以提升用户的使用体验。同时，凸出部14的侧面和第一侧面321之间产生的摩擦力，也可以为转轴组件100的转动提供阻尼力，以进一步提升用户的阻尼手感。
并且，本实施例中，第一摩擦面413和第二摩擦面421均为平磨面，在转轴组件100转动过程中，第一摩擦面413与第二摩擦面421之间的摩擦力为恒定值。可以理解，转轴组件100在整个开合过程中，受到的阻尼力为恒定值，无爬坡力，也就是爬坡倍率为1，从而有利于实现可折叠装置200的单手开合，提升用户的使用体验。此外，将第一摩擦面413和第二摩擦面421设置为平磨面，还可以简化转动轮41和固定轮42的结构，简化转动轮41和固定轮42的加工工艺，降低生成成本，同时，使得转动轮41和固定轮42更容易实现归一化和标准化设计。
请参阅图2和图3，弹性件50套于转轴10的承载部13的外周，并位于固定轮42背向转动轮41的一侧，且弹性件50的一端与固定轮42抵接。本实施例中，弹性件50为碟簧组。当然，弹性件50也可以是弹簧，或者弹性体，或者其它具有弹性的结构件。本实施例中，碟簧组包括五个碟簧501。五个碟簧501沿转轴10的轴线方向并排设置于承载部13，并位于固定轮42背向转动轮41的一侧，且碟簧组与固定轮42抵接。在其他实施例中，碟簧组也可以包括四个以下或者六个以上的碟簧501。需要说明的是，碟簧501(belleville spring)又名贝勒维尔弹簧垫圈。碟簧501的形状为圆锥碟状。碟簧501在承受负载时被压扁并储蓄弹性势能，在负载消除或者减小时释放弹性势能。与传统弹簧相比，碟簧501具有负荷大，行程短，所需空间小，组合使用方便，维修换装容易，经济安全性高的优点。碟簧501适用于空间小，负荷大，精密的机械。
本实施例中，固定件51为螺母。在其他实施例中，固定件51也可以是其它固定元件。固定件51位于承载部13远离连接部12的一端，并与承载部13固定连接，并且固定件51朝向弹性件50方向挤压弹性件50，使弹性件50处于压缩状态。也就是，弹性件50位于固定件51和固定轮42之间，并且弹性件50在固定件51和固定轮42的挤压作用下处于压缩状态，同时，弹性件50对固定轮42施加朝向转动轮41方向的弹性挤压力。
第一支架20相对第二支架30转动时，带动转轴10和固定件51相对第二支架30转动，从而带动固定轮42相对第二支架30转动。同时，固定轮42相对弹性件50、转动轮41和第二支架30转动。转动轮41相对固定轮42转动时，与固定轮42之间产生摩擦力。转动 轮41与固定轮42之间产生的摩擦力可以为转轴组件100的转动提供阻尼力。固定轮42相对弹性件50转动时，与弹性件50之间产生摩擦力，该摩擦力可以进一步增大固定轮42转动时的阻尼力，也就是进一步增大转轴组件100在转动过程中受到的阻尼力。
需要解释的是，滑动摩擦力的大小与压力大小相关。压力越大，产生的滑动摩擦力就越大。本实施例中的弹性件50处于压缩状态，具有弹性恢复力。弹性件50产生的弹性恢复力作用于固定轮42，并由固定轮42作用于转动轮41，从而可以增大固定轮42与转动轮41之间的作用力，进而可以增大固定轮42与转动轮41之间的摩擦力，以进一步增大转轴组件100在转动过程中受到的阻尼力，进一步提升用户的阻尼手感，提升用户的使用体验。
同时，本实施例中，采用碟簧组作为弹性件50，可以简化转轴组件100的结构，减小转轴组件100的尺寸，有利于实现可折叠装置200的轻薄化。并且，在使用过程中，可以根据实际使用需求，调节碟簧组中碟簧501的数量，以调整碟簧组提供的作用力，从而达到调节转轴组件100在转动过程中受到的阻尼力大小，进而可以增加碟簧组的适用性，降低转轴组件100的成本。
此外，本实施例中提供的固定件51用于固定弹性件50，以使弹性件50稳定安装于转轴10，同时使转动轮41、固定轮42和第二支架30稳定安装于转轴10，以避免第二支架30、转动轮41、固定轮42和弹性件50从转轴10的端部脱离，从而可以增加转轴组件100结构的稳定性。
请继续参阅图2和图3，转轴组件100还包括第一摩擦片52。第一摩擦片52包括第一面521和第二面522。第一面521和第二面522相对设置，且第一面521和第二面522均为粗糙的平面。第一摩擦片52设有第三通孔523，第三通孔523贯穿第一面521和第二面522。本实施例中，第三通孔523为扁平孔，且第三通孔523的形状与承载部13的外轮廓相匹配。
第一摩擦片52位于转动轮41和第二连接体32之间，并与转轴10固定连接。其中，承载部13穿过第三通孔523，以使第一摩擦片52安装于承载部13的外周，并且第一面521与转动轮41的第一表面414接触并抵接，第二面522与第二连接体32的第二侧面322接触并抵接。承载部13的平面部分131与第三通孔523的平面部分131相对，承载部13的弧面部分132与第三通孔523的弧面部分132相对，以使第一摩擦片52固定安装于承载部13。
第一支架20相对第二支架30转动时，带动转轴10相对第二支架30转动，从而带动第一摩擦片52相对转动轮41和第二支架30转动。第一摩擦片52相对转动轮41转动时，第一面521与第一表面414之间产生摩擦力，该摩擦力通过阻止第一摩擦片52转动以阻止转轴10转动，从而为转轴组件100的转动提供阻尼力。第一摩擦片52相对第二支架30转动时，第二面522与第二连接体32的第二侧面322之间产生摩擦力，该摩擦力可以进一步阻止转轴10转动，以进一步增大转轴组件100受到的阻尼力，提升用户的阻尼手感。
并且，本实施例中，弹性件50处于压缩状态，具有弹性恢复力。弹性件50产生的弹性恢复力通过固定轮42作用于转动轮41，并由转动轮41作用至第一摩擦片52，再由第一摩擦片52作用于第二支架30，从而可以增大转动轮41与第一摩擦片52之间的作用力，以及第一摩擦片52与第二支架30之间的作用力，进而可以增大转动轮41与第一摩擦片 52之间的摩擦力，以及第一摩擦片52与第二支架30之间的摩擦力，以进一步增大转轴组件100在转动过程中受到的阻尼力，进一步提升用户的阻尼手感，提升用户的使用体验。
请继续参阅图2和图3，止档片53为中间具有通孔的圆片。止档片53的相对两个表面均为粗糙面。止档片53设有第四通孔531。本实施例中，第四通孔531为扁平孔，且第四通孔531的形状与承载部13的外轮廓相匹配。本实施例中，止档片53的结构与第一摩擦片52的结构相同。在其他实施例中，止档片53的结构也可以与第一摩擦片52的结构不同。
止档片53位于固定件51和弹性件50之间，并与转轴10固定连接。其中，承载部13穿过第四通孔531，以使止档片53安装于承载部13的外周，并且止档片53的相对两个表面分别与固定件51和弹性件50接触并抵接。转轴10相对第二支架30转动时，带动止档片53和固定件51转动。本实施例中，通过设置止档片53，可以避免固定件51松动，增加固定件51与转轴10连接的稳定性，进而可以提升转轴组件100结构的稳定性。
请参阅图2和图3，转轴组件100处于闭合状态时，第一支架20和第二支架30相对折叠，弹性件50处于压缩状态。转轴组件100处于打开状态时，第一支架20和第二支架30呈第一夹角α，弹性件50保持在压缩状态。转轴组件100从闭合状态转动至展开状态时，第一支架20相对第二支架30朝向远离第二支架30方向转动时，第一支架20带动转轴10转动，并使转轴10相对第二支架30和转动轮41转动。同时，转轴10转动时还带动固定轮42、第一摩擦片52、止档片53和固定件51转动。转轴10相对第二支架30转动时，凸出部14的侧面与第一侧面321之间产生摩擦力。固定轮42相对转动轮41转动时，第一摩擦面413和第二摩擦面421之间产生摩擦力。第一摩擦片52相对转动轮41和第二支架30转动时，第一面521和第一表面414之间产生摩擦力，第二面522与第二侧面322之间产生摩擦力。凸出部14和第二支架30之间的摩擦力、固定轮42与转动轮41之间的摩擦力、第一摩擦片52与转动轮41和第二支架30之间的摩擦力均可阻止转轴10的转动，从而为转轴组件100的转动提供阻尼力，以提升用户的阻尼手感。
并且，转轴组件100在转动过程中，弹性件50均处于压缩状态，并具有弹性恢复力。该弹性恢复力对固定轮42、转动轮41、第一摩擦片52和第二支架30均施加作用力，可以增大凸出部14和第二支架30之间的摩擦力、固定轮42与转动轮41之间的摩擦力、第一摩擦片52与转动轮41和第二支架30之间的摩擦力，从而可以进一步增大转轴组件100在转动过程中受到的阻尼力，进而可以进一步提升用户的阻尼手感。
同时，转动轮41的第一摩擦面413和固定轮42的第二摩擦面421均为平磨面，在转轴组件100转动过程中，第一摩擦面413与第二摩擦面421之间的摩擦力为恒定值。可以理解，转轴组件100在整个开合过程中，受到的阻尼力为恒定值，无爬坡力，也就是爬坡倍率为1，从而有利于实现可折叠装置200的单手开合，提升用户的使用体验。此外，将第一摩擦面413和第二摩擦面421设置为平磨面，还可以简化转动轮41和固定轮42的结构，简化转动轮41和固定轮的加工工艺，降低生成成本，同时，使得转动轮41和固定轮更容易实现归一化和标准化设计。
请参阅图7和图8，图7是本申请第二实施例提供的转轴组件100的结构示意图，图8是图7所示转轴组件100的分解结构示意图。
本实施例与图2所示实施例的不同之处在于，本实施例提供的转轴组件100还包括辅助转动轮70、辅助摩擦片71和辅助弹性件72。辅助转动轮70的结构与转动轮41的结构相同。辅助转动轮70包括辅助转动轮本体701和辅助延伸体702。辅助延伸体702由辅助转动轮本体701的外环面朝向远离辅助转动轮本体701方向延伸。辅助转动轮本体701沿轴向方向设有贯穿辅助转动轮本体701的通孔。辅助转动轮70安装于转轴10的连接部12，并与转轴10转动连接。连接部12穿过辅助转动轮本体701的通孔，以使辅助转动轮本体701套于连接部12的外周，且辅助转动轮本体701的表面与凸出部14的侧面接触，辅助延伸体702位于第三安装孔34内。第二支架30相对转轴10转动时，可通过辅助延伸体702带动辅助转动轮本体701相对转轴10转动。
辅助摩擦片71的结构与第一摩擦片52的结构相同。辅助摩擦片71安装于连接部12的外周，并与转轴10固定连接，且辅助摩擦片71位于辅助转动轮70背向凸出部14的一侧。本实施例中，连接部12设有扁轴段，辅助摩擦片71设有与扁轴段配合的扁平孔。连接部12的扁轴段穿过辅助摩擦片71的扁平孔，以使辅助摩擦片71与连接部12固定连接。辅助弹性件72的结构与弹性件50的结构相同。辅助弹性件72安装于连接部12的外周，并位于辅助摩擦片71背向辅助转动轮70的一侧，且辅助弹性件72处于压缩状态，并产生弹性恢复力。辅助弹性件72产生的弹性恢复力沿轴向方向朝靠近凸出部14方向挤压辅助摩擦片71和辅助转动轮70，以增加辅助转动轮70与凸出部14之间的作用力，以及辅助摩擦片71与辅助转动轮70之间的作用力。
转轴组件100从闭合状态转动至展开状态时，第一支架20相对第二支架30朝向远离第二支架30方向转动时，第一支架20带动转轴10转动，并使转轴10相对第二支架30和辅助转动轮70转动。同时，转轴10转动时还带动辅助摩擦片71转动。辅助转动轮70相对转轴10转动时，辅助转动轮70与凸出部14的侧面之间产生摩擦力。辅助转动轮70相对辅助摩擦片71转动时，辅助摩擦片71与辅助转动轮70之间产生摩擦力。本实施例中，通过设置辅助转动轮70和辅助摩擦片71，且转轴组件100转动时，辅助转动轮70与凸出部14以及辅助转动轮70与辅助摩擦片71之间具有均摩擦力，从而可以进一步增大转轴组件100转动时受到的阻尼力。并且，通过设置辅助弹性件72，可以增大辅助摩擦片71和辅助转动轮70之间的作用力，以及辅助转动轮70与凸出部14之间的作用力，从而可以增大辅助摩擦片71和辅助转动轮70之间的摩擦力，以及辅助转动轮70与凸出部14之间的摩擦力，以进一步增大转轴组件100转动时受到的阻尼力。
请参阅图9和图10，图9是本申请第三实施例提供的转轴组件100的结构示意图，图10是图9所示转轴组件100的分解结构示意图。
本实施例提供的转轴组件100与图2所述转轴组件100的不同之处在于，本实施例提供的转轴组件100还包括第二摩擦片54，且本实施例中转动轮41与图2中转动轮41的结构不同。
本实施例中，转动轮41包括第一本体411、第二本体417和延伸体412。延伸体412与第一本体411固定连接，且延伸体412由第一本体411的外环面朝向远离第一本体411方向延伸。第二本体417与第一本体411平行且间隔设置，第二本体417与延伸体412固定连接。转动轮41安装于转轴10的承载部13，并与转轴10转动连接，且延伸体412与 第二支架30固定连接。第二支架30相对转轴10转动时，可通过延伸体412带动第一本体411和第二本体417相对转轴10转动。
第二摩擦片54的结构与第一摩擦片52的结构相同。第二摩擦片54安装于转轴10的承载部13，并与转轴10固定连接。第二摩擦片54位于第一本体411和第二本体417之间，并与第一本体411和第二本体417接触。转动轮41相对第二摩擦片54转动时，第二摩擦片54与第一本体411和第二本体417之间均产生摩擦力，以阻止转轴10的转动，并为转轴组件100提供阻尼力。
本实施例中，通过在第一本体411和第二本体417之间设置第二摩擦片54，使得转动轮41相对第二摩擦片54转动时，第一本体411和第二本体417均与第二摩擦片54之间产生摩擦力，从而可以进一步增大转轴组件100在转动过程中受到的阻尼力，以进一步提升用户的阻尼手感。
在其他实施例中，第二本体417也可包括多个子本体，多个子本体沿轴向与第一本体411间隔设置，且多个子本体之间间隔设置，相邻两个子本体之间均设有一个摩擦片，以进一步增大转轴组件100在转动时受到的阻尼力。
以上，仅为本申请的部分实施例和实施方式，本申请的保护范围不局限于此，任何熟知本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权利要求的保护范围为准。

Claims (31)

  1. 一种转轴组件，其特征在于，包括：转轴、第一支架、第二支架、固定轮和转动轮；
    所述第一支架与所述转轴固定连接；
    所述转动轮包括第一摩擦面，所述转动轮包括第二摩擦面，所述第一摩擦面和所述第二摩擦面均为平面；
    所述转动轮和所述固定轮均套于所述转轴的外周，且所述第一摩擦面与所述第二摩擦面接触，所述固定轮与所述转轴固定连接，所述转动轮与所述转轴转动连接；
    所述第二支架与所述转轴转动连接，并与所述转动轮固定连接；
    所述第一支架相对所述第二支架转动时，带动所述转轴转动，以带动所述固定轮转动，并使所述第一摩擦面和所述第二摩擦面之间产生摩擦力。
  2. 根据权利要求1所述的转轴组件，其特征在于，所述第一支架相对所述第二支架转动时，所述固定轮和所述转动轮之间的摩擦力为恒定值。
  3. 根据权利要求1或2所述的转轴组件，其特征在于，所述第一摩擦面的摩擦系数为0.1～0.12；所述第二摩擦面的摩擦系数为0.1～0.12。
  4. 根据权利要求1至3任一项所述的转轴组件，其特征在于，所述转动轮包括第一本体和延伸体，所述延伸体与所述第一本体固定连接，并朝向远离所述第一本体方向延伸；所述第一本体套于所述转轴的外周，并与所述转轴转动连接，所述延伸体与所述第二支架固定连接。
  5. 根据权利要求4所述的转轴组件，其特征在于，所述转动轮还包括第二本体，所述第二本体与所述第一本体平行且间隔设置，所述第二本体与所述延伸体固定连接；所述转轴组件还包括第二摩擦片，所述第二摩擦片位于所述第一本体和所述第二本体之间，并与所述第一本体和所述第二本体接触，且所述第二摩擦片与所述转轴固定连接。
  6. 根据权利要求1至5任一项所述的转轴组件，其特征在于，所述转轴包括承载部，所述承载部为扁轴，所述承载部的外周面包括平面部分和弧面部分，所述平面部分与所述弧面部分连接；所述固定轮设有第二通孔，所述第二通孔的轮廓与所述承载部的外轮廓一致；所述承载部安装于所述第二通孔内，且所述承载部转动可带动所述固定轮同步转动。
  7. 根据权利要求1至6任一项所述的转轴组件，其特征在于，所述转轴组件包括弹性件，所述弹性件套于所述转轴的外周，且所述弹性件处于压缩状态，并抵持所述固定轮，以使所述固定轮抵持所述转动轮。
  8. 根据权利要求7所述的转轴组件，其特征在于，所述弹性件为碟簧组或弹簧，或所述弹性件的材质为弹性体材料。
  9. 根据权利要求1至8任一项所述的转轴组件，其特征在于，所述转轴组件包括第一摩擦片，所述第一摩擦片与所述转轴固定连接，且所述第一摩擦片位于所述转动轮和所述第二支架之间，并与所述转动轮和所述第二支架抵持。
  10. 根据权利要求9所述的转轴组件，其特征在于，所述转动轮包括第一表面，所述第一表面为平面，所述第一表面与所述第一摩擦面相对设置，且所述第一表面与所述第一摩擦片接触。
  11. 根据权利要求7或8所述的转轴组件，其特征在于，所述转轴组件还包括固定件，所述固定件固定于所述转轴背向所述第一支架的一端，且所述弹性件、所述固定轮、所述转动轮和所述第二支架均位于所述固定件和所述第一支架之间。
  12. 根据权利要求11所述的转轴组件，其特征在于，所述转轴组件还包括止档片，所述止档片位于所述固定件和所述弹性件之间，并与所述转轴固定连接，且所述止档片与所述固定件抵接。
  13. 根据权利要求6所述的转轴组件，其特征在于，所述转轴还包括连接部和凸出部，所述连接部、所述凸出部和所述承载部沿所述转轴的轴向固定连接，所述凸出部的外径大于所述连接部和所述承载部的外径；所述转动轮安装于所述承载部，所述转轴组件还包括辅助转动轮，所述辅助转动轮转动安装于所述连接部，并与所述第二支架固定连接，且所述辅助转动轮于所述凸出部的侧面接触。
  14. 根据权利要求13所述的转轴组件，其特征在于，所述转轴组件还包括辅助弹性件，所述辅助弹性件安装于所述连接部，并位于所述辅助转动轮背向所述凸出部的一侧，所述辅助弹性件处于压缩状态，以挤压所述辅助转动轮。
  15. 根据权利要求14所述的转轴组件，其特征在于，所述转轴组件还包括辅助摩擦片，所述辅助摩擦片安装于所述连接部，并与所述连接部固定连接；所述辅助摩擦片位于所述辅助转动轮和所述辅助弹性件之间，且所述辅助弹性件抵持所述辅助摩擦片。
  16. 一种可折叠装置，其特征在于，包括主机、显示器和权利要求1至15任一项所述的转轴组件，所述转轴组件连接所述主机和所述显示器之间，所述转轴组件转动时，所述显示器和所述主机相对转动。
  17. 根据权利要求16所述的可折叠装置，其特征在于，所述可折叠装置还包括第一磁性件和第二磁性件，所述第一磁性件安装于所述显示器，所述第二磁性件安装于所述主机，所述显示器相对所述主机闭合时，所述第一磁性件和所述第二磁性件磁性相吸。
  18. 一种转轴组件，其特征在于，包括：转轴、第一支架、第二支架、固定轮和转动轮；
    所述第一支架与所述转轴固定连接；
    所述转动轮包括第一摩擦面，所述固定轮包括第二摩擦面，所述第一摩擦面和所述第二摩擦面均为平面；
    所述转动轮和所述固定轮均套于所述转轴的外周，且所述第一摩擦面与所述第二摩擦面接触，所述固定轮与所述转轴固定连接，所述转动轮与所述转轴转动连接；
    所述第二支架与所述转轴转动连接，并与所述转动轮固定连接；
    所述第一支架相对所述第二支架转动时，带动所述转轴转动，以带动所述固定轮转动，并使所述第一摩擦面和所述第二摩擦面之间产生摩擦力；
    所述第一摩擦面和所述第二摩擦面均为平磨面，所述第一支架相对所述第二支架转动时，所述固定轮和所述转动轮之间的摩擦力为恒定值。
  19. 根据权利要求18所述的转轴组件，其特征在于，所述第一摩擦面的摩擦系数为0.1～0.12；所述第二摩擦面的摩擦系数为0.1～0.12。
  20. 根据权利要求18或19所述的转轴组件，其特征在于，所述转动轮包括第一本体 和延伸体，所述延伸体与所述第一本体固定连接，并朝向远离所述第一本体方向延伸；所述第一本体套于所述转轴的外周，并与所述转轴转动连接，所述延伸体与所述第二支架固定连接。
  21. 根据权利要求20所述的转轴组件，其特征在于，所述转动轮还包括第二本体，所述第二本体与所述第一本体平行且间隔设置，所述第二本体与所述延伸体固定连接；所述转轴组件还包括第二摩擦片，所述第二摩擦片位于所述第一本体和所述第二本体之间，并与所述第一本体和所述第二本体接触，且所述第二摩擦片与所述转轴固定连接。
  22. 根据权利要求18至21任一项所述的转轴组件，其特征在于，所述转轴包括承载部，所述承载部为扁轴，所述承载部的外周面包括平面部分和弧面部分，所述平面部分与所述弧面部分连接；所述固定轮设有第二通孔，所述第二通孔的轮廓与所述承载部的外轮廓一致；所述承载部安装于所述第二通孔内，且所述承载部转动可带动所述固定轮同步转动。
  23. 根据权利要求18至22任一项所述的转轴组件，其特征在于，所述转轴组件包括弹性件，所述弹性件套于所述转轴的外周，且所述弹性件处于压缩状态，并抵持所述固定轮，以使所述固定轮抵持所述转动轮。
  24. 根据权利要求23所述的转轴组件，其特征在于，所述弹性件为碟簧组或弹簧，或所述弹性件的材质为弹性体材料。
  25. 根据权利要求18至24任一项所述的转轴组件，其特征在于，所述转轴组件包括第一摩擦片，所述第一摩擦片与所述转轴固定连接，且所述第一摩擦片位于所述转动轮和所述第二支架之间，并与所述转动轮和所述第二支架抵持。
  26. 根据权利要求25所述的转轴组件，其特征在于，所述转动轮包括第一表面，所述第一表面为平面，所述第一表面与所述第一摩擦面相对设置，且所述第一表面与所述第一摩擦片接触。
  27. 根据权利要求23或24所述的转轴组件，其特征在于，所述转轴组件还包括固定件，所述固定件固定于所述转轴背向所述第一支架的一端，且所述弹性件、所述固定轮、所述转动轮和所述第二支架均位于所述固定件和所述第一支架之间。
  28. 根据权利要求27所述的转轴组件，其特征在于，所述转轴组件还包括止档片，所述止档片位于所述固定件和所述弹性件之间，并与所述转轴固定连接，且所述止档片与所述固定件抵接。
  29. 根据权利要求22所述的转轴组件，其特征在于，所述转轴还包括连接部和凸出部，所述连接部、所述凸出部和所述承载部沿所述转轴的轴向固定连接，所述凸出部的外径大于所述连接部和所述承载部的外径；所述转动轮安装于所述承载部，所述转轴组件还包括辅助转动轮，所述辅助转动轮转动安装于所述连接部，并与所述第二支架固定连接，且所述辅助转动轮于所述凸出部的侧面接触。
  30. 根据权利要求29所述的转轴组件，其特征在于，所述转轴组件还包括辅助弹性件，所述辅助弹性件安装于所述连接部，并位于所述辅助转动轮背向所述凸出部的一侧，所述辅助弹性件处于压缩状态，以挤压所述辅助转动轮。
  31. 根据权利要求30所述的转轴组件，其特征在于，所述转轴组件还包括辅助摩擦片， 所述辅助摩擦片安装于所述连接部，并与所述连接部固定连接；所述辅助摩擦片位于所述辅助转动轮和所述辅助弹性件之间，且所述辅助弹性件抵持所述辅助摩擦片。
PCT/CN2022/141352 2022-04-21 2022-12-23 转轴组件和可折叠装置 WO2023202134A1 (zh)

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