WO2024099088A1 - 铰链机构及电子设备 - Google Patents

铰链机构及电子设备 Download PDF

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Publication number
WO2024099088A1
WO2024099088A1 PCT/CN2023/126704 CN2023126704W WO2024099088A1 WO 2024099088 A1 WO2024099088 A1 WO 2024099088A1 CN 2023126704 W CN2023126704 W CN 2023126704W WO 2024099088 A1 WO2024099088 A1 WO 2024099088A1
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WO
WIPO (PCT)
Prior art keywords
swing arm
synchronous
hinge mechanism
elastic
support plate
Prior art date
Application number
PCT/CN2023/126704
Other languages
English (en)
French (fr)
Inventor
李能智
汪耀
Original Assignee
维沃移动通信有限公司
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 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2024099088A1 publication Critical patent/WO2024099088A1/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

Definitions

  • the present application belongs to the technical field of communication equipment, and specifically relates to a hinge mechanism and an electronic device.
  • the foldable electronic device includes a first device body, a second device body and a hinge mechanism, and the first device body and the second device body are hinged by the hinge mechanism.
  • the hinge mechanism includes a base, a main swing arm and a synchronous swing arm. When the main swing arm rotates, it drives the synchronous swing arm to move, thereby realizing the synchronous rotation of the first device body and the second device body.
  • the purpose of the embodiments of the present application is to provide a hinge mechanism and an electronic device that can solve the problem of rubbing and shaking of the hinge mechanism.
  • an embodiment of the present application provides a hinge mechanism, comprising: a base; a main swing arm, the main swing arm comprising a first swing arm body and a connecting portion, the connecting portion being arranged on the first swing arm body, the first swing arm body being rotatably arranged on the base, the connecting portion being provided with a strip Hole; a synchronous swing arm, the synchronous swing arm includes a second swing arm body and a synchronous shaft, the synchronous shaft has a connecting end and a free end, the connecting end is connected to the second swing arm body, the free end and the connecting end are respectively located on both sides of the strip hole, and the synchronous shaft can move along the extension direction of the strip hole; an elastic limiter, the elastic limiter is sleeved on the synchronous shaft, one end of the elastic limiter is connected to the free end, and the other end of the elastic limiter is abutted against the connecting portion.
  • an embodiment of the present application provides an electronic device, comprising a first device body, a second device body and the above-mentioned hinge mechanism, wherein the first device body and the second device body are rotatably connected via the hinge mechanism;
  • the number of the main swing arms is at least two, including a first main swing arm and a second main swing arm respectively
  • the number of the synchronous swing arms is at least two, including a first synchronous swing arm and a second synchronous swing arm respectively
  • the first synchronous swing arm cooperates with the first main swing arm
  • the second synchronous swing arm cooperates with the second main swing arm
  • the first synchronous swing arm is transmission-connected with the second synchronous swing arm
  • the first swing arm body of the first main swing arm is connected to the first device body
  • the first swing arm body of the second main swing arm is connected to the second device body.
  • a strip hole is provided at the connection part of the main swing arm, and the free end of the synchronous shaft of the synchronous swing arm passes through the strip hole.
  • An elastic limiter is sleeved on the synchronous shaft, one end of the elastic limiter is connected to the free end, and the other end of the elastic limiter abuts against the connection part.
  • the elastic limiter limits both the connection part and the free end along the axial direction of the synchronous shaft, so the elastic limiter can limit the synchronous shaft along the axial direction of the synchronous shaft, thereby preventing the synchronous shaft from rubbing and shaking relative to the connection part, so as to prevent the hinge mechanism from rubbing and shaking as a whole, thereby improving the connection stability of the two device bodies of the electronic device.
  • FIG1 is a schematic structural diagram of a hinge mechanism disclosed in an embodiment of the present application.
  • FIG2 is an exploded view of the hinge mechanism disclosed in the first embodiment of the present application.
  • FIG3 is a partial cross-sectional view of the hinge mechanism disclosed in the first embodiment of the present application.
  • FIG4 is a schematic structural diagram of an elastic limiting member of a hinge mechanism disclosed in an embodiment of the present application.
  • FIG5 is a front view of the elastic limiting member of the hinge mechanism disclosed in the embodiment of the present application.
  • FIG6 is a side view of the elastic limiting member of the hinge mechanism disclosed in the embodiment of the present application.
  • FIG7 is an exploded view of the elastic limiting member of the hinge mechanism disclosed in the embodiment of the present application.
  • FIGS. 8 and 9 are partial structural schematic diagrams of the hinge mechanism disclosed in the first embodiment of the present application.
  • FIG10 is a partial cross-sectional view of a portion of the structure of the hinge mechanism disclosed in the first embodiment of the present application.
  • FIG11 is an exploded view of the hinge mechanism disclosed in the second embodiment of the present application.
  • FIG12 is a partial cross-sectional view of a hinge mechanism disclosed in a second embodiment of the present application.
  • FIG. 13 to 15 are partial structural schematic diagrams of the hinge mechanism disclosed in the second embodiment of the present application.
  • reference numerals 100-base, 200-main swing arm, 210-first swing arm body, 220-connecting part, 221-strip hole, 2211-toothed surface, 300-synchronous swing arm, 310-second swing arm body, 320-synchronous shaft, 321-annular groove, 322-avoidance groove, 323-blocking part, 400-elastic limiter, 410-first support plate, 411-first notch, 412-protrusion, 420-second support plate, 421-second notch, 430-elastic member, 431-third notch, 510-matching gear, 520-elastic deformation member, 521-spring sheet, 522-resting protrusion, 600-gear transmission member, 610-first gear, 620-second gear, 710-fixed bracket, 720-movable bracket, 730-spring, 740-guide rod.
  • first, second, etc. in the specification and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first”, “second”, etc. are generally of the same type.
  • the number of objects is not limited, for example, the first object can be one or more.
  • “and/or” means at least one of the connected objects, and the character “/” generally means that the related objects are in an "or” relationship.
  • the embodiment of the present application discloses a hinge mechanism, which is used to realize the synchronous rotation of two device bodies of an electronic device.
  • the disclosed hinge mechanism includes a base 100 , a main swing arm 200 , a synchronous swing arm 300 and an elastic limiter 400 .
  • the base 100 provides a mounting base for other components of the hinge mechanism.
  • the main swing arm 200 includes a first swing arm body 210 and a connecting portion 220, wherein the connecting portion 220 is disposed on the first swing arm body 210, and the first swing arm body 210 is rotatably disposed on the base 100.
  • the connecting portion 220 is provided with a strip hole 221.
  • the strip hole 221 can be a straight structure or an arc structure, and the strip hole 221 is used to match the synchronous swing arm 300, so the extension direction of the strip hole 221 needs to match the motion trajectory of the synchronous swing arm 300.
  • the synchronous swing arm 300 includes a second swing arm body 310 and a synchronous shaft 320.
  • the synchronous shaft 320 has a connecting end and a free end.
  • the connecting end is connected to the second swing arm body 310.
  • the free end and the connecting end are respectively located on both sides of the strip hole 221.
  • the free end passes through the strip hole 221, so that part of the synchronous shaft 320 is located in the strip hole 221.
  • the synchronous shaft 320 can move along the extension direction of the strip hole 221.
  • the main swing arm 200 moves, the synchronous shaft 320 and the inner side wall of the strip hole 221 generate friction transmission, and the synchronous shaft 320 can move along the extension direction of the strip hole 221.
  • the synchronous swing arm 300 can also move with the main swing arm 200.
  • the number of main swing arms 200 is at least two, including a first main swing arm and a second main swing arm.
  • the number of synchronous swing arms 300 is at least two, including a first synchronous swing arm and a second synchronous swing arm.
  • the first synchronous swing arm cooperates with the first main swing arm.
  • the second synchronous swing arm cooperates with the second main swing arm.
  • the first synchronous swing arm is connected to the second synchronous swing arm by transmission.
  • the first swing arm body 210 of the first main swing arm is connected to the first device body.
  • the first swing arm body 210 of the second main swing arm is connected to the second device body.
  • the user applies force to the first device body, and the first device body drives the first main swing arm 200 to rotate.
  • the first synchronous swing arm is driven to move.
  • the first synchronous swing arm is transmission-connected to the second synchronous swing arm, so the rotation angles of the first synchronous swing arm and the second synchronous swing arm are the same.
  • the second synchronous swing arm drives the second main swing arm to move, and the second main swing arm drives the second device body to rotate synchronously, thereby achieving synchronous rotation of the first device body and the second device body.
  • the first device body and the second device body also rotate synchronously through the hinge mechanism.
  • the hinge mechanism disclosed in the present application further includes an elastic stopper 400, which is sleeved on the synchronous shaft 320.
  • One end of the elastic stopper 400 is connected to the free end, and the other end of the elastic stopper 400 is in contact with the connecting portion 220.
  • the elastic stopper 400 is located between the free end and the connecting portion 220, and the elastic stopper 400 can limit the connecting portion 220 and the free end along the axial direction of the synchronous shaft 320.
  • the elastic limit member 400 limits the connecting portion 220 and the free end along the axial direction of the synchronization shaft 320. Therefore, the elastic limit member 400 can limit the synchronization shaft 320 along the axial direction of the synchronization shaft 320, thereby preventing the synchronization shaft 320 from rubbing and shaking relative to the connecting portion 220, thereby preventing the hinge mechanism from rubbing and shaking as a whole, thereby improving the connection stability of the two device bodies of the electronic device.
  • the elastic limit member 400 is sleeved on the synchronization shaft 320, so one end of the elastic limit member 400 facing the connecting part 220 needs to be against the connecting part 220, thereby increasing the friction between the synchronization swing arm 300 and the main swing arm 200, and further improving the synchronization movement of the synchronization swing arm 300 and the main swing arm 200, so that the rotation angles of the first device body and the second device body when unfolding and folding are further consistent, thereby further improving the appearance consistency of the electronic device and further improving the customer experience.
  • the elastic limiter 400 has a certain elasticity, so the elastic limiter 400 can buffer the force applied to the main swing arm 200 and the synchronous swing arm 300, thereby preventing the main swing arm 200 and the synchronous swing arm 300 from being damaged by the large force applied to them, thereby further improving the safety and reliability of the hinge mechanism.
  • the elastic structural member can absorb the dimensional tolerance of each component, so that the main swing arm 200 and the synchronous swing arm 300 are always in a tensioned state, thereby further preventing the hinge mechanism from rubbing and shaking.
  • the elastic structural member may be a coil spring, an annular spring sheet or the like, and may also be other elastic structures which are not limited herein.
  • one end of the elastic stopper 400 can be welded to the free end.
  • the connection between the elastic stopper 400 and the free end is not limited to welding.
  • the free end can be provided with a blocking portion 323, and one end of the elastic stopper 400 can abut against the blocking portion 323.
  • the blocking portion 323 can protrude from the side surface of the synchronous shaft 320, thereby abutting against the elastic stopper 400, so as to facilitate the assembly of the elastic stopper 400 and the synchronous shaft.
  • the elastic stopper 400 may include a first support plate 410, a second support plate 420 and an elastic member 430.
  • the first support plate 410 and the second support plate 420 may be elastically connected through the elastic member 430.
  • the first support plate 410 abuts against the free end, and the second support plate 420 abuts against the connecting portion 220.
  • the elastic member 430 is disposed between the first support plate 410 and the second support plate 420, and the first support plate 410 and the second support plate 420 can protect the elastic member 430. Therefore, the above solution can further improve the safety and reliability of the elastic stopper 400.
  • the friction between the first support plate 410 and the connection part 220 is too large, which may easily affect the smoothness of the rotation and sliding of the synchronous swing arm 300 and the main swing arm 200.
  • a plurality of protrusions 412 arranged at intervals may be provided on the side of the first support plate 410 facing the connection part 220, and the first support plate 410 may abut against the connection part 220 through the protrusions 412.
  • a plurality of protrusions 412 are provided on the surface of the first support plate 410, so that when in contact with the main swing arm 200, the friction between the main swing arm 200 and the elastic stopper 400 can be reduced, thereby making the rotation and sliding of the main swing arm 200 and the synchronous swing arm 300 smoother, further improving the user experience.
  • the protrusion 412 may be a convex point structure, or a boss platform structure, or other structures, which are not limited herein.
  • first support plate 410, the elastic member 430 and the second support plate 420 can be laser welded together.
  • first support plate 410, the elastic member 430 and the second support plate 420 can also be connected in other ways, which is not limited herein.
  • the first support plate 410, the second support plate 420 and the elastic member 430 may all be provided with corresponding mounting holes.
  • the first support plate 410 may be provided with a first mounting hole
  • the second support plate 420 may be provided with a second mounting hole
  • the elastic member 430 may be provided with a third mounting hole.
  • the first support plate 410, the second support plate 420 and the elastic member 430 are sleeved on the synchronization shaft 320 through the corresponding mounting holes.
  • the elastic stopper 400 needs to be inserted into the synchronous shaft 320 from the free end. Since the free end also needs to limit the elastic stopper 400, the outer diameter of the free end needs to be smaller than the outer diameter of the mounting hole. After the elastic stopper 400 is sleeved on the synchronous shaft 320, the blocking portion 323 needs to be installed on the free end to limit the elastic stopper 400. This assembly method is relatively difficult.
  • the first support plate 410, the second support plate 420 and the elastic member 430 may be provided with notches.
  • the synchronous shaft 320 is provided with an annular groove 321.
  • the elastic limiting member 400 may be engaged with the annular groove 321 through the notch.
  • the elastic limiting member 400 is engaged in the annular groove 321 through the corresponding notches on the first support plate 410, the second support plate 420 and the elastic member 430, so that the assembly difficulty of the elastic limiting member 400 and the synchronous shaft 320 is relatively small.
  • the side wall of the annular groove 321 close to the free end can serve as the blocking portion 323 mentioned above.
  • first support plate 410, the second support plate 420 and the elastic member 430 can all be fan-shaped structures with notches.
  • first support plate 410, the second support plate 420 and the elastic member 430 can also be other structures, which are not limited herein.
  • the first support plate 410 may be provided with a first notch 411
  • the second support plate 420 may be provided with a second notch 421
  • the elastic member 430 may be provided with a third notch 431 .
  • the synchronization shaft 320 and the inner wall of the strip hole 221 are prone to slippage, so the movement of the synchronization swing arm 300 and the main swing arm 200 is not completely synchronized, which leads to the two halves of the whole machine rotating asynchronously.
  • the first device body and the second device body can be opened 45° each.
  • the first device body and the second device body are not opened 45° each, which makes the whole machine rotate asynchronously.
  • the opening angle of the machine does not reach the preset angle, thus making the appearance performance of the electronic device poor.
  • the hinge mechanism may further include a matching piece, which may be disposed on the synchronization shaft 320, and the matching piece may contact the hole wall of the strip hole 221.
  • the matching piece can increase the contact area between the synchronization shaft 320 and the hole wall of the strip hole 221, thereby increasing the friction between the synchronization swing arm 300 and the main swing arm 200, thereby making the synchronization swing arm 300 and the main swing arm 200 have better movement synchronization, thereby improving the appearance performance of the electronic device.
  • the torque output of the entire hinge mechanism can be more stable and more in line with the design value, thereby obtaining a better hovering experience and further improving the user experience.
  • the matching piece may be a matching gear 510, and the matching gear 510 may be sleeved on the synchronization shaft 320.
  • the hole wall of the strip hole 221 may be provided with a toothed surface 2211.
  • the matching gear 510 and the toothed surface 2211 may mesh with each other.
  • a matching gear 510 is added to the synchronous shaft 320, and a toothed surface 2211 is added to the hole wall of the strip hole 221 of the main swing arm 200.
  • the synchronous swing arm 300 and the main swing arm 200 form a gear meshing structure, thereby changing the original point contact between the synchronous swing arm 300 and the main swing arm 200 to surface contact, so that the main swing arm 200 can better drive the synchronous swing arm 300 to rotate, further improving the problem of asynchronous rotation of the whole machine and further improving the appearance performance of the electronic equipment.
  • the matching piece may be an elastic deformation piece 520.
  • an elastic deformation piece 520 is newly added to the synchronization shaft 320, and the synchronization shaft 320 and the inner wall of the strip hole 221 are interference-fitted through the elastic deformation piece 520, so that the synchronization swing arm 300 and the main swing arm 200 can always maintain a tight fit state, so as to improve the problem of asynchronous rotation of the whole machine, thereby further improving the appearance performance of the electronic device.
  • the interference amount between the elastic deformation member 520 and a single side of the hole wall of the strip-shaped hole may be 0.03 mm-0.05 mm, and of course may be other values, which are not limited herein.
  • the elastic deformation member 520 may include a spring sheet 521 and abutting protrusion 522.
  • the synchronization shaft 320 may be provided with an avoidance groove 322. At least a portion of the spring sheet 521 may cover the avoidance groove 322.
  • the abutting protrusion 522 is disposed on a side of the spring sheet 521 away from the avoidance groove.
  • the avoidance grooves 322 are arranged opposite to each other.
  • the avoidance groove can be used as a storage space for the spring piece 521 to be squeezed, which is convenient for the spring piece 521 to be deformed.
  • the avoidance groove 322 is used as a storage space for the spring piece 521 to be squeezed, which is more convenient for the spring piece 521 to be deformed, so the difficulty of assembling the synchronization shaft 320 and the strip hole 221 is also relatively small.
  • the avoidance groove 322 can be used as a storage space for the elastic deformation part to be squeezed, which also makes it possible to set the gap between the synchronization shaft 320 and the strip hole 221 smaller, thereby making the overall volume of the hinge mechanism smaller.
  • the number of the elastic deformation members 520 may be at least two, and the at least two elastic deformation members 520 may be respectively located on opposite sides of the synchronous shaft 320.
  • the two opposite side walls of the strip hole 221 may contact the opposite elastic deformation members 520, so that the tight fit between the synchronous swing arm 300 and the main swing arm 200 can be better achieved.
  • the embodiments of the present application further disclose an electronic device, and the disclosed electronic device includes the hinge mechanism described in any of the above embodiments.
  • the electronic device disclosed in the present application also includes a first device body and a second device body, and the first device body and the second device body are hinged by a hinge mechanism, and the first device body and the second device body can rotate relative to each other.
  • the first device body and the second device body can both include but are not limited to components such as a housing, a display module, a circuit board, and electronic components.
  • the electronic device has an unfolded state and a folded state.
  • the first device body and the second device body overlap, so that the volume of the electronic device is smaller;
  • the angle between the first device body and the second device body increases, so that the volume of the electronic device increases.
  • the first device body may be a display screen
  • the second device body may be a combination structure of a host and a keyboard.
  • the electronic device may be a folding screen mobile phone.
  • the first device body and the second device body both include a display screen and a shell.
  • the volume of the electronic device is smaller, and the electronic device may only use the display screen on the first device body or the second device body.
  • the volume of the electronic device increases, and the display screen of the first device body and the display screen of the second device body form a larger area.
  • the integrated display screen increases the display area of electronic devices exponentially.
  • the number of the main swing arms 200 is at least two, including a first main swing arm and a second main swing arm.
  • the number of the synchronous swing arms 300 is at least two, including a first synchronous swing arm and a second synchronous swing arm.
  • the first synchronous swing arm cooperates with the first main swing arm.
  • the second synchronous swing arm cooperates with the second main swing arm.
  • the first synchronous swing arm is connected to the second synchronous swing arm by transmission, the first swing arm body 210 of the first main swing arm is connected to the first device body, and the first swing arm body 210 of the second main swing arm is connected to the second device body.
  • the first device body and the second device body can be rotated synchronously through the hinge mechanism, thereby improving the user experience of the electronic device.
  • the hinge mechanism disclosed in the present application may further include a gear transmission member 600, which may be rotatably connected to the base 100, and the first synchronous swing arm 300 and the second synchronous swing arm 300 may be connected through the gear transmission member 600.
  • the gear transmission member 600 may include a first gear 610 and a second gear 620, which may be rotatably arranged on the base 100.
  • the first gear 610 and the second gear 620 are identical and meshed with each other.
  • the first gear 610 may mesh with the second swing arm body 310 of the first synchronous swing arm.
  • the second gear 620 may mesh with the second swing arm body 310 of the second synchronous swing arm.
  • the first synchronous swing arm may drive the second synchronous swing arm 300 to move through the first gear 610 and the second gear 620, thereby realizing the synchronous rotation of the first synchronous swing arm and the second synchronous swing arm, and then realizing the synchronous rotation of the first device body and the second device body.
  • the hinge mechanism disclosed in the present application may also include a fixed bracket 710, a movable bracket 720, a spring 730 and a guide rod 740, one end of the guide rod 740 may be connected to the base 100, and the other end of the guide rod 740 may be connected to the fixed bracket 710.
  • the spring 730 may be mounted on the guide rod 740, and the movable bracket 720 may also be mounted on the guide rod 740.
  • One end of the spring 730 may be connected to the fixed bracket 710, and the other end may be connected to the movable bracket 720.
  • the movable bracket 720 is provided with a first convex portion on one side facing the second swing arm body 310, and the second swing arm body 310 is provided with a second convex portion on one side facing the movable bracket 720.
  • the second convex portion cooperates with the first convex portion to drive the movable bracket 720 to move toward the direction where the fixed bracket 710 is located, thereby compressing the spring 730.
  • the reaction force of the spring 730 on the movable bracket 720 can be applied to the synchronous swing arm 300, so that the synchronous swing arm 300 has a better hovering effect, so that the electronic device has a better hovering effect. fruit.
  • the electronic device disclosed in the embodiments of the present application may be a smart phone, a tablet computer, an e-book reader, a wearable device such as a smart watch, an electronic game console, etc.
  • the embodiments of the present application do not limit the specific type of the electronic device.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Telephone Set Structure (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

本申请公开了一种铰链机构及电子设备，属于通信设备技术领域，所述铰链机构包括基座、主摆臂、同步摆臂和弹性限位件，所述主摆臂包括第一摆臂主体和连接部，所述连接部设置于所述第一摆臂主体，所述第一摆臂主体可转动地设置于所述基座上，所述连接部开设有条形孔；所述同步摆臂包括第二摆臂主体和同步轴，所述同步轴具有连接端和自由端，所述连接端与所述第二摆臂主体连接，所述自由端和所述连接端分别位于所述条形孔的两侧，所述同步轴可沿所述条形孔的延伸方向移动；所述弹性限位件套设于所述同步轴，所述弹性限位件的一端与所述自由端连接，所述弹性限位件的另一端与所述连接部抵接。

Description

铰链机构及电子设备
交叉引用
本发明要求在2022年11月08日提交中国专利局、申请号为202211392261.3、发明名称为“铰链机构及电子设备”的中国专利申请的优先权，该申请的全部内容通过引用结合在本发明中。
技术领域
本申请属于通信设备技术领域，具体涉及一种铰链机构及电子设备。
背景技术
随着柔性显示技术的发展，可折叠电子设备越来越受人们的喜爱。可折叠电子设备包括第一设备主体、第二设备主体和铰链机构，第一设备主体和第二设备主体通过铰链机构铰接。铰链机构包括基座、主摆臂和同步摆臂，主摆臂转动时带动同步摆臂运动，从而实现第一设备主体和第二设备主体的同步转动。
然而，相关技术中由于同步摆臂与主摆臂之间是轴与滑槽的配合，因此电子设备在折叠和展开的过程中，主摆臂与同步摆臂之间会沿同步轴的轴线方向发生搓动和晃动，从而导致铰链机构整体发生搓动和晃动，进而造成电子设备的两个设备主体的连接稳定性较差。
发明内容
本申请实施例的目的是提供一种铰链机构及电子设备，能够解决铰链机构发生搓动和晃动的问题。
为了解决上述技术问题，本申请是这样实现的：
第一方面，本申请实施例提供了一种铰链机构，包括：基座；主摆臂，所述主摆臂包括第一摆臂主体和连接部，所述连接部设置于所述第一摆臂主体，所述第一摆臂主体可转动地设置于所述基座上，所述连接部开设有条形 孔；同步摆臂，所述同步摆臂包括第二摆臂主体和同步轴，所述同步轴具有连接端和自由端，所述连接端与所述第二摆臂主体连接，所述自由端和所述连接端分别位于所述条形孔的两侧，所述同步轴可沿所述条形孔的延伸方向移动；弹性限位件，所述弹性限位件套设于所述同步轴，所述弹性限位件的一端与所述自由端连接，所述弹性限位件的另一端与所述连接部抵接。
第二方面，本申请实施例提供了一种电子设备，包括第一设备主体、第二设备主体和上述的铰链机构，所述第一设备主体和所述第二设备主体通过所述铰链机构转动连接；所述主摆臂的数量为至少两个，分别包括第一主摆臂和第二主摆臂，所述同步摆臂的数量为至少两个，分别包括第一同步摆臂和第二同步摆臂，所述第一同步摆臂与所述第一主摆臂相配合，所述第二同步摆臂与所述第二主摆臂相配合，所述第一同步摆臂与所述第二同步摆臂传动相连，所述第一主摆臂的所述第一摆臂主体与所述第一设备主体相连接，所述第二主摆臂的所述第一摆臂主体与所述第二设备主体相连接。
本申请实施例中，主摆臂的连接部开设有条形孔，同步摆臂的同步轴的自由端穿过条形孔。弹性限位件套设于同步轴，弹性限位件的一端与自由端连接，弹性限位件的另一端与连接部抵接，此时，弹性限位件沿同步轴的轴线方向对连接部和自由端均进行限位，因此弹性限位件能够沿同步轴的轴线方向对同步轴进行限位，从而能够避免同步轴相对于连接部发生搓动和晃动，以避免铰链机构整体发生搓动和晃动，进而提高电子设备的两个设备主体的连接稳定性。
附图说明
图1为本申请实施例公开的铰链机构的结构示意图；
图2为本申请第一实施例公开的铰链机构的***图；
图3为本申请第一实施例公开的铰链机构的局部剖视图；
图4为本申请实施例公开的铰链机构的弹性限位件的结构示意图；
图5为本申请实施例公开的铰链机构的弹性限位件的主视图；
图6为本申请实施例公开的铰链机构的弹性限位件的侧视图；
图7为本申请实施例公开的铰链机构的弹性限位件的***图；
图8和图9为本申请第一实施例公开的铰链机构的部分结构示意图；
图10为本申请第一实施例公开的铰链机构的部分结构的局部剖视图；
图11为本申请第二实施例公开的铰链机构的***图；
图12为本申请第二实施例公开的铰链机构的局部剖视图；
图13至图15为本申请第二实施例公开的铰链机构的部分结构示意图。
附图标记说明：
100-基座、200-主摆臂、210-第一摆臂主体、220-连接部、221-条形孔、
2211-齿形面、300-同步摆臂、310-第二摆臂主体、320-同步轴、321-环形卡槽、322-避让凹槽、323-阻挡部、400-弹性限位件、410-第一支撑板、411-第一豁口、412-凸起、420-第二支撑板、421-第二豁口、430-弹性件、431-第三豁口、510-配合齿轮、520-弹性变形件、521-弹片、522-抵靠凸部、600-齿轮传动件、610-第一齿轮、620-第二齿轮、710-固定支架、720-活动支架、730-弹簧、740-导向杆。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整的描述，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”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”等所区分的对象通常为一类， 并不限定对象的个数，例如第一对象可以是一个，也可以是多个。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。
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的铰链机构及电子设备进行详细地说明。
参考图1至图15，本申请实施例公开一种铰链机构，该铰链机构用于实现电子设备的两个设备主体的同步转动。所公开的铰链机构包括基座100、主摆臂200、同步摆臂300和弹性限位件400。
基座100为铰链机构的其他组成部件提供安装基础。主摆臂200包括第一摆臂主体210和连接部220，连接部220设置于第一摆臂主体210，第一摆臂主体210可转动地设置于基座100上。连接部220开设有条形孔221。条形孔221可以为直线结构，也可以为弧形结构，该条形孔221用于与同步摆臂300相配合，因此条形孔221的延伸方向需要与同步摆臂300的运动轨迹相配合。
同步摆臂300包括第二摆臂主体310和同步轴320，同步轴320具有连接端和自由端，连接端与第二摆臂主体310相连接，自由端和连接端分别位于条形孔221的两侧。此时，自由端穿过条形孔221，因此使得同步轴320的部分位于条形孔221内。同步轴320可沿条形孔221的延伸方向移动。此时，当主摆臂200运动时，同步轴320与条形孔221的内侧壁发生摩擦传动，同步轴320可沿条形孔221的延伸方向移动，同时也能够实现同步摆臂300与主摆臂200一同运动。
在具体的结构中，主摆臂200的数量为至少两个，分别包括第一主摆臂和第二主摆臂。同步摆臂300的数量为至少两个，分别包括第一同步摆臂和第二同步摆臂。第一同步摆臂与第一主摆臂相配合。第二同步摆臂与第二主摆臂相配合。第一同步摆臂与第二同步摆臂传动相连。第一主摆臂的第一摆臂主体210与第一设备主体相连接。第二主摆臂的第一摆臂主体210与第二设备主体相连接。
当电子设备展开时，用户将作用力施加至第一设备主体，第一设备主体带动第一主摆臂200转动，第一主摆臂200转动的过程中带动第一同步摆臂运动，第一同步摆臂与第二同步摆臂传动相连，因此第一同步摆臂和第二同步摆臂的转动角度相同，第二同步摆臂带动第二主摆臂运动，第二主摆臂带动第二设备主体同步转动，因此能够实现第一设备主体和第二设备主体的同步转动。
同理，电子设备在折叠时，第一设备主体和第二设备主体也通过铰链机构实现同步转动。
本申请公开的铰链机构还包括弹性限位件400，弹性限位件400套设于同步轴320。弹性限位件400的一端与自由端连接，弹性限位件400的另一端与连接部220抵接。此时，弹性限位件400位于自由端和连接部220之间，弹性限位件400沿同步轴320的轴线方向能够对连接部220和自由端进行限位。
本申请公开的实施例中，弹性限位件400沿同步轴320的轴线方向对连接部220和自由端进行限位，因此弹性限位件400能够沿同步轴320的轴线方向对同步轴320进行限位，从而能够避免同步轴320相对于连接部220发生搓动和晃动，因此避免铰链机构整体发生搓动和晃动，进而提高电子设备的两个设备主体的连接稳定性。
另外，弹性限位件400套设在同步轴320上，因此弹性限位件400朝向连接部220的一端需要顶靠在连接部220上，因此能够增大同步摆臂300与主摆臂200的摩擦力，进而进一步提高同步摆臂300与主摆臂200的同步运动，从而使得第一设备主体和第二设备主体在展开和折叠时转动角度进一步一致，因此进一步提高电子设备的外观一致性，也进一步提高客户体验。
此外，弹性限位件400具有一定的弹性，因此弹性限位件400能够对主摆臂200和同步摆臂300受到的作用力进行缓冲，从而避免主摆臂200和同步摆臂300受到的较大作用力而发生损坏，因此进一步提高了铰链机构的安全性和可靠性。
另外，弹性结构件能够吸收各零件的尺寸公差，使得主摆臂200和同步摆臂300始终处于拉紧状态，因此进一步避免了铰链机构发生搓动和晃动。
可选地，弹性结构件可以为螺旋弹簧、环形弹片等结构，当然还可以为其他的弹性结构本文不作限制。
上述实施例中，弹性限位件400的一端可以焊接在自由端上，当然，弹性限位件400与自由端的连接不限于焊接一种方式。在另一种可选的实施例中，自由端可以设置有阻挡部323，弹性限位件400的一端可以与阻挡部323相抵接。此时阻挡部323能够凸出于同步轴320的侧表面，从而与弹性限位件400抵接，便于弹性限位件400与同步轴进行装配。
在另一种可选的实施例中，弹性限位件400可以包括第一支撑板410、第二支撑板420和弹性件430，第一支撑板410和第二支撑板420可以通过弹性件430弹性连接，第一支撑板410与自由端相抵接，第二支撑板420与连接部220相抵接。此方案中，弹性件430设置在第一支撑板410和第二支撑板420之间，第一支撑板410和第二支撑板420能够对弹性件430起到防护作用。因此上述方案能够进一步提高弹性限位件400的安全性和可靠性。
上述实施例中，第一支撑板410与连接部220的摩擦力过大容易影响同步摆臂300和主摆臂200的转动和滑动的顺畅性。为此，在另一种可选的实施例中，第一支撑板410朝向连接部220的一侧可以设置有多个间隔排布的凸起412，第一支撑板410可以通过凸起412与连接部220相抵接。此方案中，第一支撑板410的表面设置多个凸起412，这样在与主摆臂200接触时，能够减小主摆臂200与弹性限位件400的摩擦力，进而使得主摆臂200和同步摆臂300的转动和滑动更加顺畅，进一步提高用户体验。
上述凸起412可以为凸点状结构，也可以为凸台状结构，当然还可以为其他结构，本文不作限制。
上述实施例中，第一支撑板410、弹性件430和第二支撑板420之间可以通过激光焊接在一起，当然，第一支撑板410、弹性件430和第二支撑板420还可以采用其他方式连接，本文不作限制。
可选地，第一支撑板410、第二支撑板420和弹性件430均可以开设有对应的安装孔。例如，第一支撑板410上可以开设有第一安装孔，第二支撑板420上可以开设有第二安装孔，弹性件430上可以开设有第三安装孔。第一支撑板410、第二支撑板420和弹性件430通过对应的安装孔套装在同步轴320上。
上述实施例中，弹性限位件400需要从自由端套入同步轴320。由于自由端还需要对弹性限位件400进行限位。因此自由端的外径需要小于安装孔的外径，当弹性限位件400套设在同步轴320后，还需要将上述的阻挡部323安装在自由端，以对弹性限位件400进行限位。此种装配方式难度较大。
基于此，在另一种可选的实施例中，第一支撑板410、第二支撑板420和弹性件430上均可以开设有豁口。同步轴320开设有环形卡槽321。弹性限位件400可通过豁口与环形卡槽321卡接配合。此方案中，通过第一支撑板410、第二支撑板420和弹性件430上对应的豁口，将弹性限位件400卡接在环形卡槽321内，因此使得弹性限位件400与同步轴320的装配难度较小。
此方案中，环形卡槽321靠近自由端的一侧的侧壁可以作为上文中的阻挡部323。
上述实施例中，第一支撑板410、第二支撑板420和弹性件430均可以为带豁口的扇形结构。当然，第一支撑板410第二支撑板420和弹性件430还可以为其他结构本文不作限制。
具体地，第一支撑板410上可以开设有第一豁口411，第二支撑板420上可以开设有第二豁口421，弹性件430上可以开设有第三豁口431。
上述实施例中，同步轴320与条形孔221的内壁之间容易打滑，因此使得同步摆臂300与主摆臂200的运动不会完全同步，进而导致整机两半设备主体转动不同步。例如，当整机打开到90°时，理想状态下，第一设备主体和第二设备主体可以各打开45°。当同步摆臂300与主摆臂200的运动不完全同步时，导致第一设备主体和第二设备主体不是各打开45°，因此使得整 机打开的角度没有到预设角度，因此使得电子设备的外观性能较差。
基于此，在另一种可选的实施例中，铰链机构还可以包括配合件，配合件可以设置于同步轴320上，配合件可以与条形孔221的孔壁相接触。此方案中，配合件能够增大同步轴320与条形孔221的孔壁的接触面积，从而能够增大同步摆臂300与主摆臂200的摩擦力，进而使得同步摆臂300与主摆臂200有更好的运动同步性，因此能够提高电子设备的外观性能。
另外，同步摆臂300与主摆臂200的转动同步性能提升后，整个铰链机构的扭矩输出能够更加稳定，更符合设计值，进而能获得更好的悬停体验，进一步提高用户的使用体验。
在另一种可选的实施例中，配合件可以为配合齿轮510，配合齿轮510可以套设于同步轴320上。条形孔221的孔壁可以设置有齿形面2211。配合齿轮510与齿形面2211可以相啮合。
此方案中，在同步轴320上新增一个配合齿轮510，主摆臂200的条形孔221的孔壁上增加齿形面2211，同步摆臂300与主摆臂200形成齿轮啮合结构，从而使得同步摆臂300与主摆臂200由原来的点接触改为面接触，进而使主摆臂200能更好的带动同步摆臂300转动，进一步改善了整机转动不同步的问题，进一步提高了电子设备的外形性能。
在另一种可选的实施例中，配合件可以为弹性变形件520。此方案中，同步轴320上新增加一个弹性变形件520，同步轴320与条形孔221的内壁通过弹性变形件520过盈配合，因此同步摆臂300与主摆臂200始能够终维持紧配合状态，以改善整机转动不同步问题，进而进一步提高了电子设备的外形性能。
可选地，弹性变形件520与条形孔的孔壁单边的干涉量可以为0.03mm-0.05mm，当然还可以为其他数值，本文不作限制。
进一步地，弹性变形件520可以包括弹片521和抵靠凸部522，同步轴320可以开设有避让凹槽322，弹片521的至少部分可以覆盖避让凹槽322，抵靠凸部522设置于弹片521背离避让凹槽的一侧，且抵靠凸部522可以与 避让凹槽322相对设置。
此方案中，当同步轴320***条形孔221时，条形孔221的内壁对抵靠凸部522的作用力使得弹片521朝向避让凹槽322内发生变形。因此避让凹槽可以作为弹片521受到挤压的容纳空间，便于弹片521发生变形。此外，避让凹槽322作为弹片521受到挤压的容纳空间，更便于弹片521发生变形，因此同步轴320与条形孔221的装配难度也较小。另外，避让凹槽322可以作为弹性变形部受到挤压的容纳空间，也使得同步轴320和条形孔221的间隙可以设置的较小，因此使得铰链机构的整体体积较小。
在另一种可选的实施例中，弹性变形件520数量可以为至少两个，至少两个弹性变形件520可以分别位于同步轴320的相背的两侧。此方案中，条形孔221的相对的两个侧壁均可以与相对的弹性变形件520相接触，因此能够更好的实现同步摆臂300与主摆臂200的紧配合。
基于本申请实施例公开的铰链机构，本申请实施例还公开一种电子设备，所公开的电子设备包括上文任一实施例所述的铰链机构。
本申请公开的电子设备还包括第一设主体和第二设备主体，第一设备主体和第二设备主体通过铰链机构铰接，此时第一设备主体和第二设备主体之间可相对转动。第一设备主体和第二设备主体可以均包括但不限于壳体、显示模组、电路板、电子元器件等部件。
具体地，电子设备具有展开状态和折叠状态，当电子设备处于折叠状态时，第一设备主体和第二设备主体相叠置，从而使得电子设备的体积较小；当电子设备处于展开状态时，第一设备主体和第二设备主体之间的角度增大，以使得电子设备的体积增大。例如，当电子设备为笔记本电脑时，第一设备主体可以为显示屏，第二设备主体可以为主机和键盘的组合结构。再例如，电子设备可以为折叠屏手机，第一设备主体和第二设备主体均包括显示屏和壳体，当电子设备折叠时，电子设备的体积较小，电子设备可以仅使用第一设备主体或第二设备主体上的显示屏。当电子设备展开时，电子设备的体积增大，第一设备主体的显示屏和第二设备主体的显示屏形成一个面积较大的 整体显示屏，使得电子设备的显示面积也成倍增加。
主摆臂200的数量为至少两个，分别包括第一主摆臂和第二主摆臂。同步摆臂300的数量为至少两个，分别包括第一同步摆臂和第二同步摆臂。第一同步摆臂与第一主摆臂相配合。第二同步摆臂与第二主摆臂相配合。第一同步摆臂与第二同步摆臂传动相连，第一主摆臂的第一摆臂主体210与第一设备主体相连接，第二主摆臂的第一摆臂主体210与第二设备主体相连接。
此方案中，电子设备在折叠和展开时，第一设备主体和第二设备主体可以通过铰链机构实现同步转动，从而能够提高电子设备的用户体验。
本申请公开的铰链机构还可以包括齿轮传动件600，齿轮传动件600可以与基座100转动连接，第一同步摆臂300和第二同步摆臂300可以通过齿轮传动件600相连接。具体地，齿轮传动件600可以包括第一齿轮610和第二齿轮620，第一齿轮610和第二齿轮620均可转动的设置于基座100上。第一齿轮610和第二齿轮620相同，且相啮合。第一齿轮610可以与第一同步摆臂的第二摆臂主体310相啮合。第二齿轮620可以与第二同步摆臂的第二摆臂主体310相啮合。此时，第一同步摆臂可以通过第一齿轮610和第二齿轮620带动第二同步摆臂300运动，因此实现第一同步摆臂和第二同步摆臂的同步转动，进而实现第一设备主体和第二设备主体的同步转动。
本申请公开的铰链机构还可以包括固定支架710、活动支架720、弹簧730和导向杆740，导向杆740的一端可以与基座100相连接，导向杆740的另一端可以与固定支架710相连接。弹簧730可以套装在导向杆740上，活动支架720也可以套装在导向杆740上，弹簧730的一端可以与固定支架710相连接，另一端与活动支架720相连接。活动支架720朝向第二摆臂主体310的一侧设置有第一凸部，第二摆臂主体310朝向活动支架720的一侧设置有第二凸部。在电子设备展开的过程中，第二凸部与第一凸部相配合，以驱动活动支架720朝向固定支架710所在的方向移动，进而压缩弹簧730。此时弹簧730对活动支架720的反作用力能够施加至同步摆臂300上，从而使得同步摆臂300具有更好的悬停效果，以使得电子设备具有更好的悬停效 果。
本申请实施例公开的电子设备可以是智能手机、平板电脑、电子书阅读器、可穿戴设备例如智能手表、电子游戏机等设备，本申请实施例不限制电子设备的具体种类。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (11)

  1. 一种铰链机构，包括：
    基座；
    主摆臂，所述主摆臂包括第一摆臂主体和连接部，所述连接部设置于所述第一摆臂主体，所述第一摆臂主体可转动地设置于所述基座上，所述连接部开设有条形孔；
    同步摆臂，所述同步摆臂包括第二摆臂主体和同步轴，所述同步轴具有连接端和自由端，所述连接端与所述第二摆臂主体连接，所述自由端和所述连接端分别位于所述条形孔的两侧，所述同步轴可沿所述条形孔的延伸方向移动；
    弹性限位件，所述弹性限位件套设于所述同步轴，所述弹性限位件的一端与所述自由端连接，所述弹性限位件的另一端与所述连接部抵接。
  2. 根据权利要求1所述的铰链机构，其中，所述自由端设置有阻挡部，所述弹性限位件的一端与所述阻挡部相抵接。
  3. 根据权利要求1所述的铰链机构，其中，所述弹性限位件包括第一支撑板、第二支撑板和弹性件，所述第一支撑板和所述第二支撑板通过所述弹性件弹性连接，所述第一支撑板与所述自由端相抵接，所述第二支撑板与所述连接部相抵接。
  4. 根据权利要求3所述的铰链机构，其中，所述第一支撑板、所述第二支撑板和所述弹性件上均开设有豁口，所述同步轴开设有环形卡槽，所述弹性限位件可通过所述豁口与所述环形卡槽卡接配合。
  5. 根据权利要求3所述的铰链机构，其中，所述第一支撑板朝向所述连接部的一侧设置有多个间隔排布的凸起，所述第一支撑板通过所述凸起与所述连接部相抵接。
  6. 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配合件，所述配合件设置于所述同步轴上，所述配合件与所述条形孔的孔壁相接触。
  7. 根据权利要求6所述的铰链机构，其中，所述配合件为配合齿轮，所述配合齿轮套设于所述同步轴上，所述条形孔的孔壁设置有齿形面，所述配合齿轮与所述齿形面相啮合。
  8. 根据权利要求6所述的铰链机构，其中，所述配合件为弹性变形件，所述同步轴与所述条形孔的内壁通过所述弹性变形件过盈配合。
  9. 根据权利要求8所述的铰链机构，其中，所述弹性变形件包括弹片和抵靠凸部，所述同步轴开设有避让凹槽，所述弹片的至少部分覆盖所述避让凹槽，所述抵靠凸部设置于所述弹片背离所述避让凹槽的一侧，且所述抵靠凸部与所述避让凹槽相对设置。
  10. 根据权利要求8所述的铰链机构，其中，所述弹性变形件的数量为至少两个，至少两个所述弹性变形件分别位于所述同步轴的相背的两侧。
  11. 一种电子设备，包括第一设备主体、第二设备主体和权利要求1至10中任一项所述的铰链机构，所述第一设备主体和所述第二设备主体通过所述铰链机构转动连接；
    所述主摆臂的数量为至少两个，分别包括第一主摆臂和第二主摆臂，所述同步摆臂的数量为至少两个，分别包括第一同步摆臂和第二同步摆臂，所述第一同步摆臂与所述第一主摆臂相配合，所述第二同步摆臂与所述第二主摆臂相配合，所述第一同步摆臂与所述第二同步摆臂传动相连，所述第一主摆臂的所述第一摆臂主体与所述第一设备主体相连接，所述第二主摆臂的所述第一摆臂主体与所述第二设备主体相连接。
PCT/CN2023/126704 2022-11-08 2023-10-26 铰链机构及电子设备 WO2024099088A1 (zh)

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