WO2016082345A1 - 转轴装置及具有该转轴装置的可折叠电子装置 - Google Patents

转轴装置及具有该转轴装置的可折叠电子装置 Download PDF

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Publication number
WO2016082345A1
WO2016082345A1 PCT/CN2015/072742 CN2015072742W WO2016082345A1 WO 2016082345 A1 WO2016082345 A1 WO 2016082345A1 CN 2015072742 W CN2015072742 W CN 2015072742W WO 2016082345 A1 WO2016082345 A1 WO 2016082345A1
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WIPO (PCT)
Prior art keywords
rotating shaft
bracket
rotating
driving gear
sleeved
Prior art date
Application number
PCT/CN2015/072742
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English (en)
French (fr)
Inventor
江振祥
邹明政
Original Assignee
泽台精密电子工业(深圳)有限公司
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Application filed by 泽台精密电子工业(深圳)有限公司 filed Critical 泽台精密电子工业(深圳)有限公司
Publication of WO2016082345A1 publication Critical patent/WO2016082345A1/zh

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    • 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

Definitions

  • the present invention relates to a spindle device, and more particularly to a spindle device and a foldable electronic device having the spindle device.
  • the foldable electronic device adopts a folding method to reduce the storage area, so as to achieve the purpose of lightness and thinness of the electronic product.
  • the hinge device is a connection mechanism used in a foldable electronic device to open or close two body portions of an electronic product.
  • the notebook computer mainly includes a display and a main body, wherein the display and the main body are usually connected to each other through a rotating shaft device.
  • the display and the main body can be turned on or closed by the rotation of the rotating shaft device.
  • the rotating device has a small frictional force to rotate. The reliability of the use of electronic products is poor.
  • the friction is gradually reduced, resulting in the electronic products not being used normally.
  • An object of the present invention is to provide a hinge device and a foldable electronic device having the same, which overcomes the deficiencies of the prior art.
  • the technical solution adopted by the present invention to solve the prior art problem is: a rotating shaft device
  • the first rotating joint includes a first rotating shaft and a first bracket, the first rotating shaft is pivotally connected to the receiving member, and the first bracket is fixedly coupled to the first rotating shaft;
  • a second rotating joint comprising a second rotating shaft and a second bracket, the second rotating shaft is pivotally connected to the receiving member and opposite to the first rotating shaft, and the second bracket is fixedly connected to the first rotating shaft Two shafts;
  • a friction mechanism comprising a first driving gear, a second driving gear and at least one driven gear, wherein the first driving gear is fixed on the first rotating shaft, and the second driving gear is fixed on the second rotating shaft
  • the at least one driven gear is pivotally disposed on the receiving member and meshed with the first driving gear and the second driving gear respectively;
  • a retaining mechanism comprising a sleeve, a sliding sleeve and an elastic damping mechanism, the sleeve is sleeved on the second rotating shaft and fixed circumferentially with the receiving member, and a circumferential surface of the sleeve is provided with a spiral slide;
  • the sliding sleeve can be parallel to the second a sliding sleeve is sleeved on the second bracket, and the sliding sleeve is provided with a protrusion inserted into the spiral sliding passage, so that the sliding sleeve is opposite to the first portion when the second bracket rotates
  • the two brackets slide the elastic damping mechanism is coupled between the sliding sleeve and the second bracket to provide resistance when the sliding sleeve slides.
  • the elastic damping mechanism comprises a spring and a linkage
  • the linkage comprises a central body and a first rotating arm extending from the central body and a second rotation forming an angle with the first rotating arm arm;
  • the central body is pivotally connected to the second bracket, the second bracket is provided with a first sliding slot and a second sliding slot, and the free end of the first rotating arm is provided with a first pin.
  • the first pin shaft is slidably disposed on the first sliding slot, the free end of the second rotating arm is disposed with a second pin shaft, and the second pin shaft is slidably disposed on the second pin Chute
  • One end of the spring is fixedly coupled to the free end of the first rotating arm, and the other end of the spring is fixedly coupled to the sliding sleeve.
  • the driven gear includes a first driven gear and a second driven gear, the first driven gear meshes with the first driving gear and the second driven gear, and the second driven gear Engaging with the second driving gear.
  • the receiving member includes a first receiving plate and a second receiving plate, and the first rotating shaft and the second rotating shaft sequentially pass through the first receiving plate and the second receiving plate, the first driving gear, The second driving gear is located between the first receiving plate and the second receiving plate.
  • the first rotating shaft is provided with a first rotating damping mechanism, and the first rotating damping mechanism is sleeved on the first rotating shaft to provide relative rotation between the first rotating shaft and the receiving member. Resistance
  • a second rotation damping mechanism is disposed on the second rotating shaft, and the second rotating damping mechanism is sleeved on the second rotating shaft to provide a resistance to relative rotation between the second rotating shaft and the receiving member.
  • the first rotational damping mechanism includes a first spacer, a first elastic piece, a second spacer, and a threaded connection on the first rotating shaft, which are sequentially sleeved on the first rotating shaft, for a first lock nut, wherein the first gasket, the first elastic piece, the second gasket and the receiving member are pressed against each other;
  • the second rotational damping mechanism includes a third spacer, a second elastic piece, a fourth spacer, which are sequentially sleeved on the first rotating shaft, and a threaded connection on the first rotating shaft for the third a second lock nut, the second elastic piece, the fourth spacer and the receiving member are pressed against each other.
  • a positioning member is further disposed, the one end of the positioning member is sleeved between the second rotating shaft and the first locking nut, and the other end of the positioning member is sleeved at The second rotating shaft is located between the fourth gasket and the second lock nut.
  • the receiving member further includes a pad pivotally sleeved on the first rotating shaft and the second rotating shaft,
  • the backing plate is located between the first receiving plate and the second receiving plate, and has a fifth sleeve between the backing plate and the first receiving plate and is circumferentially fixed on the first rotating shaft and the second rotating shaft a gasket; the first driving gear, the second driving gear, and the at least one driven gear are located between the backing plate and the second receiving plate.
  • the contact surface of the pad with the first driving gear and the second driving gear is provided with an friction-increasing structure for increasing the frictional force during rotation.
  • a foldable electronic device comprising a first body, a second body and a rotating shaft device as described above;
  • the first body is fixedly connected to the first bracket of the rotating shaft device, and the second body is fixedly connected with the second bracket of the rotating shaft device, so that the first body and the second body can follow the first Opening or closing of a bracket and a second bracket relative to each other
  • the rotating shaft device and the foldable electronic device having the same increase the frictional force of the rotation process of the first bracket and the second bracket by the friction mechanism, and on the other hand, the sliding sleeve in the holding mechanism
  • the second bracket rotates and slides, and when the sliding sleeve slides, the protrusion on the sliding sleeve slides in the spiral sliding passage, so that the resistance in the rotation of the second bracket can be increased; on the other hand, the elastic damping mechanism in the holding mechanism can be
  • the resistance of the sliding sleeve is provided, so that the second bracket can be kept open to the first bracket, whereby the invention has a large rotating friction force and has a good rotational connection effect, and the long-term friction is basically not used. Attenuation, long service life, stable and reliable connection.
  • FIG. 1 is a schematic view showing the overall structure of a hinge device according to an embodiment of the present invention.
  • FIG. 2 is a schematic view showing the overall structure of a rotating shaft device according to another embodiment of the present invention.
  • Figure 3 is an exploded view of the hinge device of the embodiment of the present invention.
  • Second receiving plate 102
  • the first rotating shaft 201 The first rotating shaft 201;
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or connected integrally; may be mechanical connection or electrical connection; may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • installation shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise.
  • , or connected integrally may be mechanical connection or electrical connection; may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • an embodiment of the present invention provides a hinge device for a foldable electronic device, the hinge device including a receiving member 10, a first rotating connecting member 20, a second rotating connecting member 30, and friction. Mechanism 40 and holding mechanism 50.
  • the first rotating connector 20 includes a first rotating shaft 201 and a first bracket 202, and the first rotating shaft 201 is pivotable.
  • the first bracket 202 is fixedly coupled to the first rotating shaft 201.
  • the first bracket 202 is fixed to the first rotating shaft 201 by pins 203. That is, the first rotating shaft 201 rotates relative to the receiving member 10, and the first bracket 202 can rotate with the rotation of the first rotating shaft 201, and the first bracket 202 is used for connecting the first body of the foldable electronic device. (For example, the main body), as such, the first body can be rotated as the first bracket 202 rotates.
  • the second rotating connector 30 includes a second rotating shaft 301 and a second rotating bracket 301.
  • the second rotating shaft 301 is pivotally connected to the receiving member 10 and opposite to the first rotating shaft 201.
  • the second bracket 302 is fixedly coupled to the second rotating shaft 301.
  • the second bracket 302 is fixed to the second rotating shaft 301 by pins 303. That is, the second rotating shaft 301 can be rotated relative to the receiving member 10, and the second bracket 302 can be rotated with the rotation of the second rotating shaft 301. Since the first rotating shaft 201 is opposite to the second rotating shaft 301, when the first bracket 202 and/or the second bracket 302 rotate, the first bracket 202 and the second bracket 302 approach or move away from each other.
  • the second bracket 302 is specifically configured to connect a second body (eg, a display) of the foldable electronic device, such that the first body and the second body of the electronic product can be rotated away from the first bracket 202 and the second bracket 302. Opened or folded together as the first bracket 202 and the second bracket 302 are rotated closer together.
  • a second body eg, a display
  • the friction mechanism 40 includes a first driving gear 401, a second driving gear 402, and at least one driven gear.
  • the first driving gear 401 is fixed on the first rotating shaft 201
  • the second driving gear 402 is fixed on the second rotating shaft 301.
  • the at least one driven gear is pivotally disposed on the receiving member 10 and meshes with the first driving gear 401 and the second driving gear 402, respectively.
  • first driving gear 401, the at least one driven gear, and the second driving gear 402 are engaged with each other, when the first bracket 202 and/or the second bracket 302 rotate, the first rotating shaft 201 and the second rotating shaft 301 respectively drive The first driving gear 401 and the second driving gear 402 rotate, and the first driving gear 401 and the second driving gear 402 further drive the at least one gear to rotate, so that the first bracket 202 can be increased by the meshing between the gears.
  • the frictional force when the second bracket 302 rotates is the resistance, so that the stability of the first bracket 202 and the second bracket 302 in the open state can be improved.
  • the holding mechanism 50 includes a sleeve 501, a sliding sleeve 502 and an elastic damping mechanism.
  • the sleeve 501 is sleeved on the second rotating shaft 301 and fixed circumferentially with the receiving member 10, that is, between the second rotating shaft 301 and the sleeve 501. Relatively rotating, the sleeve 501 and the receiving member 10 are not rotatable relative to each other.
  • the circumferential surface of the sleeve 501 is provided with a spiral slide.
  • the sliding sleeve 502 is slidably sleeved on the second bracket 302 in a direction parallel to the second rotating shaft 301, and the sliding sleeve 502 is provided with a protrusion 5021 inserted into the spiral slide.
  • the sliding sleeve 502 slides relative to the second bracket 302 when the second bracket 302 rotates.
  • the spiral slide is half a turn. When the second bracket 302 rotates, the protrusion 5021 slides in the spiral slide.
  • the sliding sleeve 502 slides on the second bracket 302 when the projection 5021 is slid from one end of the spiral slide to At the other end, the sliding sleeve 502 slides from one position on the second bracket 302 to another position, and the second bracket 302 and the first bracket 202 can be changed from an open state to a closed state or from a closed state to an open state.
  • the elastic damper mechanism is connected between the sliding sleeve 502 and the second bracket 302 to provide the resistance when the sliding sleeve 502 slides.
  • the second bracket 302 When the second bracket 302 rotates, the second bracket 302 drives the second rotating shaft 301 to rotate, and at the same time, the sliding sleeve 502
  • the upper projection 5021 slides within the spiral slide on the sleeve 501 and forces the sliding sleeve 502 to slide on the second bracket 302, and the elastic damping mechanism provides the resistance when the sliding sleeve 502 slides, that is, prevents the sliding sleeve 502 from moving. In this way, the resistance during the rotation of the second bracket 302 can be increased.
  • the hinge device and the foldable electronic device having the same, on the one hand, increase the frictional force of the rotation of the first bracket 202 and the second bracket 302 by the friction mechanism 40, and on the other hand, the retaining mechanism 50
  • the sliding sleeve 502 slides with the rotation of the second bracket 302, and when the sliding sleeve 502 slides, the protrusion 5021 on the sliding sleeve 502 slides in the spiral sliding passage, so that the resistance in the rotation of the second bracket 302 can be increased;
  • the elastic damper mechanism in the retaining mechanism 50 can provide the resistance of the sliding sleeve 502 to slide, so that the second bracket 302 can be kept open to the first bracket 202, whereby the present invention has a large rotational friction force. It has a good rotating connection effect, the friction for long-term use is basically not attenuated, the service life is long, and the connection is stable and reliable.
  • the first rotating shaft 201 includes at least a first shaft section 2011 and a second shaft section 2022.
  • the first shaft section 2011 has two opposite fixed planes and through holes extending through the two fixing planes, the first bracket The 202 is fixed to the first rotating shaft 201 by a through hole penetrating the pin 203.
  • the second shaft segment 2022 includes two opposite limiting planes and two opposite arcuate surfaces.
  • the first driving gear 401 is sleeved on the second shaft section 2022 through a non-circular matching hole, and is adjacent to the opposite two limiting planes.
  • the bearing member 10 is sleeved on the second shaft portion 2022 through a circular hole and is rotatable relative to the opposite arc surfaces.
  • the second rotating shaft 301 includes a third shaft portion 3011, a fourth shaft portion and a fifth shaft portion 3012.
  • the third shaft portion 3011 has two opposite fixing planes and through holes extending through the two fixing planes, and the second bracket 302 passes The pin 203 passing through the through hole is fixed to the second rotating shaft 301.
  • the fourth shaft segment is cylindrical, and the sleeve 501 is sleeved on the fourth shaft segment and is rotatable relative to the fourth shaft segment.
  • the fifth shaft segment 3012 has two opposite limiting planes and two opposite arc surfaces.
  • the second driving gear 402 is sleeved on the fifth shaft segment 3012 through the non-circular matching hole, and is circumferentially opposite to the fifth shaft segment 3012.
  • the receiving member 10 is sleeved on the fifth shaft segment 3012 through a circular hole, and is rotatable relative to the opposite arc surfaces.
  • the connection structure between the first rotating shaft 201, the second rotating shaft 301, the first bracket 202, the second bracket 302, the friction mechanism 40, and the like can be simplified, and at the same time, the structural strength can be improved and the assembly can be facilitated.
  • the elastic damper mechanism includes a spring 503 and a linkage 504.
  • the linkage 504 includes a central body 5041 and a first rotating arm 5042 extending from the central body 5041 and a first rotating arm 5042.
  • An angled second rotating arm 5043 is formed.
  • the central body 5041 is pivotally connected to the second bracket 302.
  • the second bracket 302 is provided with a first sliding slot 3021 and a second sliding slot 3022.
  • the free end of the first rotating arm 5042 is provided with a first pin 505.
  • the first pin 505 is slidably disposed on the first chute 3021
  • the second end of the second pivot arm 5043 is disposed through the second pin 506
  • the second pin 506 is slidably disposed on the second chute 3022 .
  • One end of the spring 503 is fixedly coupled to the free end of the first rotating arm 5042
  • the other end of the spring 503 is fixedly coupled to the sliding sleeve 502.
  • the spring 503 When one side of the 302 moves, the spring 503 is stretched, the first rotating arm 5042 rotates, the first pin 505 slides in the first sliding slot 3021, and the second rotating arm 5043 is linked with the first rotating arm 5042, the first The second pin 506 slides within the second chute 3022.
  • the second bracket 302 rotates in the other direction (for example, counterclockwise)
  • the sliding sleeve 502 slides on the second bracket 302 to the other side. Since the spring 503 is coupled to the sliding sleeve 502, the sliding sleeve 502 is second.
  • the structural design can greatly improve the resistance of the second bracket 302 to rotate, and a large torsional moment is required to open the second bracket 302 and the first bracket 202, and the open state after opening needs to be applied.
  • the torsional moment can close the second bracket 302 and the first bracket 202, so that the stability of the first bracket 202 and the second bracket 302 in the open state can be improved.
  • the driven gear includes a first driven gear 403 and a second driven gear
  • the first driven gear 403 is meshed with the first driving gear 401 and the second driven gear
  • the second driven gear meshes with the second driving gear 402.
  • the receiving member 10 includes a first receiving plate 101 and a second receiving plate 102.
  • the first rotating shaft 201 and the second rotating shaft 301 sequentially pass through the first receiving plate 101 and the second receiving plate 102, respectively.
  • the first driving gear 401 and the second driving gear 402 are located between the first receiving plate 101 and the second receiving plate 102.
  • the first receiving plate 101 and the second receiving plate 102 are spaced apart, so that the structural robustness and reliability of the entire rotating shaft device can be improved.
  • the first rotating shaft 201 is provided with a first rotating damping mechanism 60, and the first rotating damping mechanism 60 is sleeved on the first rotating shaft 201 to provide the first rotating shaft 201 and the receiving member. 10 relative Resistance to rotation.
  • the second rotating shaft 301 is provided with a second rotating damping mechanism 70.
  • the second rotating damping mechanism 70 is sleeved on the second rotating shaft 301 to provide a resistance to relative rotation between the second rotating shaft 301 and the receiving member 10.
  • the first rotational damper mechanism 60 includes a first spacer 601, a first elastic piece 602, a second spacer 603, and the first elastic plate 602 and 603, which are sequentially sleeved on the first rotating shaft 201.
  • a first lock nut 604 is screwed onto the first rotating shaft 201 for pressing the first gasket 601, the first elastic piece 602, the second gasket 603 and the receiving member 10 to each other.
  • the first spacer 601 and the second spacer 603 can be sleeved on the second shaft segment 2022 of the first rotating shaft 201 through a non-circular matching hole and circumferentially opposite to the limiting plane.
  • the first elastic piece 602 is sleeved on the second shaft section 2022 of the first rotating shaft 201 through a circular hole, and is rotatable relative to the circular arc surface.
  • the axial pressure can be provided by the first lock nut 604, so that the first gasket 601, the second elastic piece 702, the second gasket 603 and the receiving member 10 are pressed against each other, when the first rotating shaft 201 rotates,
  • the contact faces between the first spacer 601, the first elastic piece 602, the second spacer 603, and the receiving member 10 generate frictional resistance.
  • the second rotation damping mechanism 70 includes a third spacer 701, a second elastic piece 702, a fourth spacer 703, and a threaded connection on the first rotating shaft 201, which are sequentially sleeved on the first rotating shaft 201, and is screwed on the first rotating shaft 201 for
  • the third spacer 701, the second elastic piece 702, the fourth spacer 703 and the second lock nut 704 that the receiving member 10 are pressed against each other.
  • the third spacer 701 and the fourth spacer 703 can be sleeved on the fifth shaft segment 3012 of the first rotating shaft 201 through a non-circular matching hole and fixed circumferentially with the limiting plane.
  • the second elastic piece 702 can be sleeved on the fifth shaft segment 3012 of the second rotating shaft 301 through a circular hole, and can rotate relative to the circular arc surface.
  • the axial pressure can be provided by the second lock nut 704, so that the third washer 701, the second elastic piece 702, the fourth washer 703 and the receiving member 10 are pressed against each other, when the second rotating shaft 301 is rotated,
  • the contact faces between the third spacer 701, the second elastic piece 702, the fourth spacer 703, and the receiving member 10 generate frictional resistance.
  • a positioning member 80 is further disposed.
  • the one end of the positioning member 80 is sleeved between the second rotating shaft 201 and the first locking nut 604.
  • the other end of the member 80 is sleeved on the second rotating shaft 301 and located between the fourth washer 703 and the second lock nut 704.
  • the positioning member 80 can enhance the reliability of the connection of the receiving member 10 to the first rotating shaft 201 and the second rotating shaft 301.
  • the receiving member 10 further includes a backing plate 103 pivotally sleeved on the first rotating shaft 201 and the second rotating shaft 301, and the backing plate 103 is located at the first receiving plate 101 and the second Between the receiving plates 102, and between the backing plate 103 and the first receiving plate 101, a fifth spacer 104 that is sleeved and circumferentially fixed on the first rotating shaft 201 and the second rotating shaft 301; the first driving gear 401, the first The two driving gears 402 and the at least one driven gear are located between the backing plate 103 and the second receiving plate 102, so that the structural firmness can be enhanced.
  • the backing plate 103 is coupled to the first drive gear 401 and the second
  • the contact surface of the driving gear 402 is provided with an friction-increasing structure for increasing the frictional force at the time of rotation.
  • the lower surface of the first driving gear 401 and the second driving gear 402 is provided with a friction projection 5021
  • the upper surface of the backing plate 103 is provided with a dimple, so that during the rotation, the backing plate 103 and the first The frictional resistance of the contact faces of the driving gear 401 and the second driving gear 402 can be further increased.
  • the present invention also provides a foldable electronic device comprising a first body, a second body, and a spindle device as described in the above embodiments.
  • the first body is fixedly connected to the first bracket 202 of the rotating shaft device
  • the second body is fixedly connected with the second bracket 302 of the rotating shaft device, so that the first body and the second body can be attached
  • the relative rotation of the first bracket 202 and the second bracket 302 is opened or closed.
  • the frictional force of the rotation process of the first bracket 202 and the second bracket 302 is increased by the friction mechanism 40, and on the other hand, the friction is maintained.
  • the sliding sleeve 502 of the mechanism 50 slides with the rotation of the second bracket 302, and when the sliding sleeve 502 slides, the protrusion 5021 on the sliding sleeve 502 slides in the spiral sliding passage, so that the resistance in the rotation of the second bracket 302 can be increased.
  • the elastic damping mechanism in the holding mechanism 50 can provide the sliding resistance of the sliding sleeve 502, so that the second bracket 302 can be kept open to the first bracket 202, whereby the present invention has a large rotation. Friction, with good rotational connection effect, long-term use of friction is basically not attenuated, long service life, and the connection is stable and reliable.

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Abstract

一种转轴装置及具有该转轴装置的可折叠电子装置，该转轴装置包括承接件（10）、第一转动连接件（20）、第二转动连接件（30）、摩擦机构（40）及保持机构（50），第一转动连接件（20）包括第一转轴（201）及第一支架（202），第一转轴（201）可枢转地连接于承接件（10），第一支架（202）固定连接于第一转轴（201）；第二转动连接件（30）包括第二转轴（301）及第二支架（302），第二转轴（301）可枢转地连接于承接件（10）且与第一转轴（201）相对，第二支架（302）固定连接于第二转轴（301），摩擦机构（40）用于提供第一转轴（201）及第二转轴（301）转动地摩擦力，保持机构（50）可保持第一支架（202）与第二支架（302）呈打开状态。该装置具有较大的转动摩擦力，具有良好的转动连接效果，长期使用摩擦力基本不会衰减，使用寿命长，连接稳固可靠。

Description

转轴装置及具有该转轴装置的可折叠电子装置 技术领域
本发明涉及转轴装置，尤其涉及一种转轴装置及具有该转轴装置的可折叠电子装置。
背景技术
在当前的信息时代中，人们对于电子产品的依赖性与日俱增。现今电子产品的高速度、高效能及轻薄化的要求，例如是笔记本电脑等可折叠的电子产品已渐成主流，且已成为现代人生活中不可或缺的工具。一般来说，可折叠电子装置采用折叠方式来减少收纳面积，以达到电子产品轻薄短小的目的。
转轴装置是使用于可折叠电子装置中使电子产品的两个主体部分打开或闭合的连接机构。例如笔记电脑主要包括显示器及主机机体，其中显示器与主机机体通常是通过转轴装置来相互连接。如此，当使用者开启或闭合可折叠电子装置子时，显示器与主机机体即可通过转轴装置相互转动而实现开启或闭合。然而，在显示器与主机机体打开后需要保持张开状态，因此，这就要求转轴装置要有较大的转动摩擦力，但是，目前的可折叠式电子产品，其转轴装置转动的摩擦力较小，电子产品使用的可靠性较差，此外，使用一段时间后，摩擦力逐渐较小，导致电子产品不能正常使用。
发明内容
本发明的目的在于克服现有技术的不足而提供一种转轴装置及具有该转轴装置的可折叠电子装置。
本发明解决现有技术问题所采用的技术方案是：一种转轴装置，
承接件；
第一转动连接件，包括第一转轴及第一支架，所述第一转轴可枢转地连接于所述承接件，所述第一支架固定连接于所述第一转轴；
第二转动连接件，包括第二转轴及第二支架，所述第二转轴可枢转地连接于所述承接件且与所述第一转轴相对，所述第二支架固定连接于所述第二转轴；
摩擦机构，包括第一主动齿轮、第二主动齿轮及至少一个从动齿轮，所述第一主动齿轮固设于所述第一转轴上，所述第二主动齿轮固设于所述第二转轴上，所述至少一个从动齿轮可枢转设置于所述承接件上且与所述第一主动齿轮及第二主动齿轮分别啮合；
保持机构，包括套筒、滑套及弹性阻尼机构，所述套筒套接在所述第二转轴并与所述承接件周向固定，所述套筒的圆周表面设有螺旋滑道；所述滑套可沿平行于所述第二 转轴的方向滑动地套设于所述第二支架，且所述滑套上设有插入所述螺旋滑道内的凸起，以使所述第二支架转动时所述滑套相对于所述第二支架滑动；所述弹性阻尼机构连接于所述滑套与所述第二支架之间，以提供所述滑套滑动时的阻力。
优选地，所述弹性阻尼机构包括弹簧及联动件，所述联动件包含中心体及自所述中心体延伸形成的第一转动臂及与所述第一转动臂形成一夹角的第二转动臂；
所述中心体可枢转连接于所述第二支架，所述第二支架上设有第一滑槽及第二滑槽，所述第一转动臂的自由端穿设有第一销轴，所述第一销轴可滑动地设置于所述第一滑槽，所述第二转动臂的自由端穿设有第二销轴，所述第二销轴可滑动地设置于所述第二滑槽；
所述弹簧的一端与所述第一转动臂的自由端固定连接，所述弹簧的另一端与所述滑套的固定连接。
优选地，所述从动齿轮包括第一从动齿轮及第二从动齿轮，所述第一从动齿轮与所述第一主动齿轮及第二从动齿轮啮合，所述第二从动齿轮与所述第二主动齿轮啮合。
优选地，所述承接件包括第一承接板及第二承接板，所述第一转轴及第二转轴均依次穿过所述第一承接板及第二承接板，所述第一主动齿轮、第二主动齿轮位于第一承接板与第二承接板之间。
优选地，所述第一转轴上设有第一转动阻尼机构，所述第一转动阻尼机构套设于所述第一转轴上，以提供所述第一转轴与所述承接件之间相对转动的阻力；
所述第二转轴上设有第二转动阻尼机构，所述第二转动阻尼机构套设于所述第二转轴上，以提供所述第二转轴与所述承接件之间相对转动的阻力。
优选地，所述第一转动阻尼机构包括依次套设在所述第一转轴上的第一垫片、第一弹性片、第二垫片及螺纹连接在所述第一转轴上用于将所述第一垫片、第一弹性片、第二垫片与所述承接件彼此压紧的第一锁紧螺母；
所述第二转动阻尼机构包括依次套设在所述第一转轴上的第三垫片、第二弹性片、第四垫片及螺纹连接在所述第一转轴上用于将所述第三垫片、第二弹性片、第四垫片与所述承接件彼此压紧的第二锁紧螺母。
优选地，还包括一定位件，所述定位件的一端套接在所述第一转轴且位于所述第二垫片与第一锁紧螺母之间，所述定位件的另一端套接在所述第二转轴上且位于所述第四垫片与第二锁紧螺母之间。
优选地，所述承接件还包括一可枢转地套设在第一转轴及第二转轴上的垫板，所述 垫板位于第一承接板与第二承接板之间，且所述垫板与所述第一承接板之间具有套设并周向固定在所述第一转轴、第二转轴上的第五垫片；所述第一主动齿轮、第二主动齿轮及至少一个从动齿轮位于所述垫板与所述第二承接板之间。
优选地，所述垫板与所述第一主动齿轮和第二主动齿轮的接触面设有用于增大转动时的摩擦力的增摩结构。
一种可折叠电子装置，包括第一机体、第二机体及如上所述的转轴装置；
所述第一机体与所述转轴装置的第一支架固定连接，所述第二机体与所述转轴装置的第二支架固定连接，以使所述第一机体与第二机体可随所述第一支架及第二支架的相对转动而打开或闭合
根据本发明提供的转轴装置及具有该转轴装置的可折叠电子装置，一方面，通过摩擦机构增大第一支架和第二支架转动过程的摩擦力，另一方面，保持机构中的滑套随第二支架转动而滑动，且滑套滑动时，滑套上的凸起在螺旋滑道内滑动，如此，可以增大第二支架转动中的阻力；再一方面，保持机构中的弹性阻尼机构可以提供滑套滑动的阻力，如此，可以使第二支架保持与第一支架呈打开状态，藉此，本发明具有较大的转动摩擦力，具有良好的转动连接效果，长期使用摩擦力基本不会衰减，使用寿命长，连接稳固可靠。
附图说明
图1是本发明实施例转轴装置整体结构示意图；
图2是本发明实施例转轴装置另一视角的整体结构示意图；
图3是本发明实施例转轴装置的爆炸图。
附图标记：
承接件 10；
第一承接板 101；
第二承接板 102；
垫板 103；
第五垫片 104；
第一转动连接件 20；
第一转轴 201；
第一轴段 2011；
第二轴段 2022；
第一支架 202；
销钉 203；
第二转动连接件 30；
第二转轴 301；
第三轴段 3011；
第五轴段 3012；
第二支架 302；
第一滑槽 3021；
第二滑槽 3022；
销钉 303；
摩擦机构 40；
第一主动齿轮 401；
第二主动齿轮 402；
第一从动齿轮 403；
保持机构 50；
套筒 501；
滑套 502；
凸起 5021；
弹簧 503；
联动件 504；
中心体 5041；
第一转动臂 5042；
第二转动臂 5043；
第一销轴 505；
第二销轴 506；
第一转动阻尼机构 60；
第一垫片 601；
第一弹性片 602；
第二垫片 603；
第一锁紧螺母 604；
第二转动阻尼机构 70；
第三垫片 701；
第二弹性片 702；
第四垫片 703；
第二锁紧螺母 704；
定位件 80。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
参照图1至图3所示，本发明实施例提供了一种转轴装置，用于可折叠电子装置，该转轴装置包括承接件10、第一转动连接件20、第二转动连接件30、摩擦机构40及保持机构50。
具体的，第一转动连接件20包括第一转轴201及第一支架202，第一转轴201可枢 转地连接于承接件10，第一支架202固定连接于第一转轴201，例如图1至图3所示示例中第一支架202通过销钉203固定在第一转轴201上。也就是说，第一转轴201相对于承接件10转动，而第一支架202则可以随所述第一转轴201的转动而转动，该第一支架202用于连接可折叠电子装置的第一机体(例如主机本体)，如此，第一机体可以随第一支架202转动而转动。
第二转动连接件30包括第二转轴301及第二支架302，第二转轴301可枢转地连接于承接件10且与第一转轴201相对，第二支架302固定连接于第二转轴301，例如图1至图3所示示例中，第二支架302通过销钉303固定在第二转轴301上。也就是说，第二转轴301可以相对于承接件10转动，而第二支架302则可以随第二转轴301的转动而转动。由于第一转轴201与第二转轴301相对，所以当第一支架202和/或第二支架302转动时，第一支架202与第二支架302彼此靠近或远离。该第二支架302具体用于连接可折叠电子装置的第二机体(例如显示器)，如此，电子产品的第一机体和第二机体之间可以随第一支架202与第二支架302转动远离而打开，或随第一支架202与第二支架302转动靠近而折合在一起。
摩擦机构40包括第一主动齿轮401、第二主动齿轮402及至少一个从动齿轮，第一主动齿轮401固设于第一转轴201上，第二主动齿轮402固设于第二转轴301上，至少一个从动齿轮可枢转设置于承接件10上且与第一主动齿轮401及第二主动齿轮402分别啮合。由于第一主动齿轮401、至少一个从动齿轮及第二主动齿轮402之间彼此啮合，所以当第一支架202和/或第二支架302转动时，第一转轴201、第二转轴301分别带动第一主动齿轮401及第二主动齿轮402转动，第一主动齿轮401及第二主动齿轮402再进一步带动上述的至少一个齿轮转动，如此，通过齿轮之间的啮合可以增大第一支架202与第二支架302之间转动时的摩擦力，该摩擦力为阻力，所以，可以提高第一支架202与第二支架302打开状态时的稳定性。
保持机构50包括套筒501、滑套502及弹性阻尼机构，套筒501套接在第二转轴301并与承接件10周向固定，也就是说第二转轴301与套筒501之间是可以相对转动的，而套筒501与承接件10之间是不能相对转动。套筒501的圆周表面设有螺旋滑道，滑套502可沿平行于第二转轴301的方向滑动地套设于第二支架302，且滑套502上设有插入螺旋滑道内的凸起5021，以使第二支架302转动时滑套502相对于第二支架302滑动，本实施例中，螺旋滑道为半圈，当第二支架302转动时，凸起5021在螺旋滑道内滑动，而滑套502则在第二支架302上滑动，当凸起5021由螺旋滑道的一端滑动到 另一端时，滑套502对应从第二支架302上的一个位置滑动至另一个位置，而第二支架302与第一支架202可由打开状态变为闭合状态或者由闭合状态变为打开状态。弹性阻尼机构连接于滑套502与第二支架302之间，以提供滑套502滑动时的阻力，当第二支架302转动时，第二支架302带动第二转轴301转动，同时，滑套502上的凸起5021在套筒501上的螺旋滑道内滑动，并迫使滑套502在第二支架302上滑动，而弹性阻尼机构提供滑套502滑动时的阻力，也就是阻止滑套502运动，如此，即可增大第二支架302转动过程中的阻力。
根据本发明提供的转轴装置及具有该转轴装置的可折叠电子装置，一方面，通过摩擦机构40增大第一支架202和第二支架302转动过程的摩擦力，另一方面，保持机构50中的滑套502随第二支架302转动而滑动，且滑套502滑动时，滑套502上的凸起5021在螺旋滑道内滑动，如此，可以增大第二支架302转动中的阻力；再一方面，保持机构50中的弹性阻尼机构可以提供滑套502滑动的阻力，如此，可以使第二支架302保持与第一支架202呈打开状态，藉此，本发明具有较大的转动摩擦力，具有良好的转动连接效果，长期使用摩擦力基本不会衰减，使用寿命长，连接稳固可靠。
在本发明的一个实施例中，第一转轴201至少包括第一轴段2011及第二轴段2022，第一轴段2011具有两相对的固定平面及贯穿两固定平面的通孔，第一支架202通过穿过销钉203的通孔固定在第一转轴201上。第二轴段2022包括两相对的限位平面及两相对的圆弧面，第一主动齿轮401通过非圆形匹配孔套设在第二轴段2022上，且与相对的两限位平面周向相对固定，而承接件10通过圆形孔套设在第二轴段2022上，且与相对的两圆弧面可相对转动。
对应的，第二转轴301包括第三轴段3011、第四轴段及第五轴段3012，第三轴段3011具有两相对的固定平面及贯穿两固定平面的通孔，第二支架302通过穿过该通孔的销钉203与第二转轴301固定。第四轴段为圆柱形，套筒501套接在第四轴段，且与第四轴段之间可相对转动。第五轴段3012具有两相对的限位平面及两相对的圆弧面，第二主动齿轮402通过非圆形匹配孔套设在第五轴段3012上，且与第五轴段3012周向固定，而承接件10则通过圆形孔套设在第五轴段3012上，且与相对的两圆弧面可相对转动。如此，可以简化第一转轴201、第二转轴301、第一支架202、第二支架302、摩擦机构40等之间的连接结构，同时，可以提高结构强度，也利于装配。
在本发明的一个实施例中，弹性阻尼机构包括弹簧503及联动件504，联动件504包含中心体5041及自中心体5041延伸形成的第一转动臂5042及与第一转动臂5042形 成一夹角的第二转动臂5043。中心体5041可枢转连接于所述第二支架302，第二支架302上设有第一滑槽3021及第二滑槽3022，第一转动臂5042的自由端穿设有第一销轴505，第一销轴505可滑动地设置于第一滑槽3021，第二转动臂5043的自由端穿设有第二销轴506，第二销轴506可滑动地设置于第二滑槽3022。弹簧503的一端与第一转动臂5042的自由端固定连接，弹簧503的另一端与滑套502的固定连接。如此，当第二支架302沿一个方向(例如顺时针)转动时，滑套502在第二支架302上向一侧滑动，由于弹簧503与滑套502连接，所以，滑套502向第二支架302的一侧运动时，弹簧503被拉伸，第一转动臂5042转动，第一销轴505在第一滑槽3021内滑动，而第二转动臂5043与第一转动臂5042联动，第第二销轴506则在第二滑槽3022内滑动。而当第二支架302沿另一个方向(例如逆时针)转动时，滑套502在第二支架302上向另一侧滑动，由于弹簧503与滑套502连接，所以，滑套502向第二支架302的另一侧运动时，弹簧503逐渐收缩，第一转动臂5042转动，第一销轴505在第一滑槽3021内滑动，而第二转动臂5043与第一转动臂5042联动，第二销轴506则在第二滑槽3022内滑动。这种结构设计，可以使得第二支架302转动地阻力大大提高，需要施加较大的扭转力矩才可以将第二支架302与第一支架202打开，在打开后的打开状态，也需要施加较大的扭转力矩才能够将第二支架302与第一支架202闭合，如此，可以提高第一支架202与第二支架302打开状态时的稳定性。
可选地，在本发明的一个示例中，从动齿轮包括第一从动齿轮403及第二从动齿轮，第一从动齿轮403与第一主动齿轮401及第二从动齿轮啮合，第二从动齿轮与第二主动齿轮402啮合。当第一支架202和/或第二支架302转动时，第一转轴201、第二转轴301分别带动第一主动齿轮401及第二主动齿轮402转动，第一主动齿轮401及第二主动齿轮402再进一步带动上述的第一从动齿轮403及第二从动齿轮转动，如此，可使得第一支架202与第二支架302之间转动时的摩擦力更大。
在本发明的一个实施例中，承接件10包括第一承接板101及第二承接板102，第一转轴201及第二转轴301均依次穿过第一承接板101及第二承接板102，第一主动齿轮401、第二主动齿轮402位于第一承接板101与第二承接板102之间。具体而言，第一承接板101与第二承接板102之间间隔开来，如此，可以提高整个转轴装置的结构牢固性和可靠性。
在本发明的一个优选实施例中，第一转轴201上设有第一转动阻尼机构60，第一转动阻尼机构60套设于第一转轴201上，以提供第一转轴201与所述承接件10之间相对 转动的阻力。第二转轴301上设有第二转动阻尼机构70，第二转动阻尼机构70套设于第二转轴301上，以提供第二转轴301与所述承接件10之间相对转动的阻力。
更为具体的，在本发明的一个示例中，第一转动阻尼机构60包括依次套设在所述第一转轴201上的第一垫片601、第一弹性片602、第二垫片603及螺纹连接在所述第一转轴201上用于将所述第一垫片601、第一弹性片602、第二垫片603与所述承接件10彼此压紧的第一锁紧螺母604。具体的，例如图1所示示例中，第一垫片601、第二垫片603可通过非圆形匹配孔套接在第一转轴201的第二轴段2022上且与限位平面周向固定，而第一弹性片602通过圆形孔套设在第一转轴201的第二轴段2022上，且与圆弧面可相对转动。如此，通过第一锁紧螺母604可以提供轴向的压力，使第一垫片601、第二弹性片702、第二垫片603与承接件10彼此压紧，在第一转轴201转动时，第一垫片601、第一弹性片602、第二垫片603及承接件10彼此之间的接触面产生摩擦阻力。
第二转动阻尼机构70包括依次套设在所述第一转轴201上的第三垫片701、第二弹性片702、第四垫片703及螺纹连接在所述第一转轴201上用于将所述第三垫片701、第二弹性片702、第四垫片703与所述承接件10彼此压紧的第二锁紧螺母704。具体的，例如图1所示示例中，第三垫片701、第四垫片703可通过非圆形匹配孔套接在第一转轴201的第五轴段3012且与限位平面周向固定，而第二弹性片702可通过圆形孔套设在第二转轴301的第五轴段3012上，且与圆弧面可相对转动。如此，通过第二锁紧螺母704可以提供轴向的压力，使第三垫片701、第二弹性片702、第四垫片703与承接件10彼此压紧，在第二转轴301转动时，第三垫片701、第二弹性片702、第四垫片703及承接件10彼此之间的接触面产生摩擦阻力。
更为有利的，在本发明的一个示例，还包括一定位件80，该定位件80的一端套接在第一转轴201且位于第二垫片603与第一锁紧螺母604之间，定位件80的另一端套接在第二转轴301上且位于第四垫片703与第二锁紧螺母704之间。如此，该定位件80可增强承接件10与第一转轴201、第二转轴301连接的可靠性。
在本发明的又一实施例中，承接件10还包括一可枢转地套设在第一转轴201及第二转轴301上的垫板103，垫板103位于第一承接板101与第二承接板102之间，且垫板103与第一承接板101之间具有套设并周向固定在第一转轴201、第二转轴301上的第五垫片104；第一主动齿轮401、第二主动齿轮402及至少一个从动齿轮位于垫板103与第二承接板102之间，如此，可以增强结构的牢固性。
更为有利的，在本发明的一个优选实施例中，垫板103与第一主动齿轮401和第二 主动齿轮402的接触面设有用于增大转动时的摩擦力的增摩结构。例如，在第一主动齿轮401和第二主动齿轮402的下表面设有摩擦凸起5021，而在垫板103的上表面设有凹坑，如此，在转动过程中，垫板103与第一主动齿轮401和第二主动齿轮402的接触面的摩擦阻力可以进一步增大。
本发明还提供了一种可折叠电子装置，包括第一机体、第二机体及如上述实施例所述的转轴装置。所述第一机体与所述转轴装置的第一支架202固定连接，所述第二机体与所述转轴装置的第二支架302固定连接，以使所述第一机体与第二机体可随所述第一支架202及第二支架302的相对转动而打开或闭合。
根据本发明提供的可折叠电子装置，由于采用上述实施例所述的转轴装置，一方面，通过摩擦机构40增大第一支架202和第二支架302转动过程的摩擦力，另一方面，保持机构50中的滑套502随第二支架302转动而滑动，且滑套502滑动时，滑套502上的凸起5021在螺旋滑道内滑动，如此，可以增大第二支架302转动中的阻力；再一方面，保持机构50中的弹性阻尼机构可以提供滑套502滑动的阻力，如此，可以使第二支架302保持与第一支架202呈打开状态，藉此，本发明具有较大的转动摩擦力，具有良好的转动连接效果，长期使用摩擦力基本不会衰减，使用寿命长，连接稳固可靠。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在不脱离本发明的原理和宗旨的情况下在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (10)

  1. 一种转轴装置，适用于可折叠电子装置，其特征在于，包括：
    承接件；
    第一转动连接件，包括第一转轴及第一支架，所述第一转轴可枢转地连接于所述承接件，所述第一支架固定连接于所述第一转轴；
    第二转动连接件，包括第二转轴及第二支架，所述第二转轴可枢转地连接于所述承接件且与所述第一转轴相对，所述第二支架固定连接于所述第二转轴；
    摩擦机构，包括第一主动齿轮、第二主动齿轮及至少一个从动齿轮，所述第一主动齿轮固设于所述第一转轴上，所述第二主动齿轮固设于所述第二转轴上，所述至少一个从动齿轮可枢转设置于所述承接件上且与所述第一主动齿轮及第二主动齿轮分别啮合；
    保持机构，包括套筒、滑套及弹性阻尼机构，所述套筒套接在所述第二转轴并与所述承接件周向固定，所述套筒的圆周表面设有螺旋滑道；所述滑套可沿平行于所述第二转轴的方向滑动地套设于所述第二支架，且所述滑套上设有插入所述螺旋滑道内的凸起，以使所述第二支架转动时所述滑套相对于所述第二支架滑动；所述弹性阻尼机构连接于所述滑套与所述第二支架之间，以提供所述滑套滑动时的阻力。
  2. 根据权利要求1所述的转轴装置，其特征在于，所述弹性阻尼机构包括弹簧及联动件，所述联动件包含中心体及自所述中心体延伸形成的第一转动臂及与所述第一转动臂形成一夹角的第二转动臂；
    所述中心体可枢转连接于所述第二支架，所述第二支架上设有第一滑槽及第二滑槽，所述第一转动臂的自由端穿设有第一销轴，所述第一销轴可滑动地设置于所述第一滑槽，所述第二转动臂的自由端穿设有第二销轴，所述第二销轴可滑动地设置于所述第二滑槽；
    所述弹簧的一端与所述第一转动臂的自由端固定连接，所述弹簧的另一端与所述滑套的固定连接。
  3. 根据权利要求1所述的转轴装置，其特征在于，所述从动齿轮包括第一从动齿轮及第二从动齿轮，所述第一从动齿轮与所述第一主动齿轮及第二从动齿轮啮合，所述第二从动齿轮与所述第二主动齿轮啮合。
  4. 根据权利要求1所述的转轴装置，其特征在于，所述承接件包括第一承接板及第二承接板，所述第一转轴及第二转轴均依次穿过所述第一承接板及第二承接板，所述第一主动齿轮、第二主动齿轮位于第一承接板与第二承接板之间。
  5. 根据权利要求1所述的转轴装置，其特征在于，所述第一转轴上设有第一转动 阻尼机构，所述第一转动阻尼机构套设于所述第一转轴上，以提供所述第一转轴与所述承接件之间相对转动的阻力；
    所述第二转轴上设有第二转动阻尼机构，所述第二转动阻尼机构套设于所述第二转轴上，以提供所述第二转轴与所述承接件之间相对转动的阻力。
  6. 根据权利要求5所述的转轴装置，其特征在于，所述第一转动阻尼机构包括依次套设在所述第一转轴上的第一垫片、第一弹性片、第二垫片及螺纹连接在所述第一转轴上用于将所述第一垫片、第一弹性片、第二垫片与所述承接件彼此压紧的第一锁紧螺母；
    所述第二转动阻尼机构包括依次套设在所述第一转轴上的第三垫片、第二弹性片、第四垫片及螺纹连接在所述第一转轴上用于将所述第三垫片、第二弹性片、第四垫片与所述承接件彼此压紧的第二锁紧螺母。
  7. 根据权利要求6所述的转轴装置，其特征在于，还包括一定位件，所述定位件的一端套接在所述第一转轴且位于所述第二垫片与第一锁紧螺母之间，所述定位件的另一端套接在所述第二转轴上且位于所述第四垫片与第二锁紧螺母之间。
  8. 根据权利要求4所述的转轴装置，其特征在于，所述承接件还包括一可枢转地套设在第一转轴及第二转轴上的垫板，所述垫板位于第一承接板与第二承接板之间，且所述垫板与所述第一承接板之间具有套设并周向固定在所述第一转轴、第二转轴上的第五垫片；所述第一主动齿轮、第二主动齿轮及至少一个从动齿轮位于所述垫板与所述第二承接板之间。
  9. 根据权利要求8所述的转轴装置，其特征在于，所述垫板与所述第一主动齿轮和第二主动齿轮的接触面设有用于增大转动时的摩擦力的增摩结构。
  10. 一种可折叠电子装置，其特征在于，包括第一机体、第二机体及如权利要求1至9中任一项所述的转轴装置；
    所述第一机体与所述转轴装置的第一支架固定连接，所述第二机体与所述转轴装置的第二支架固定连接，以使所述第一机体与第二机体可随所述第一支架及第二支架的相对转动而打开或闭合。
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