WO2023138363A1 - 转轴结构及电子设备 - Google Patents
转轴结构及电子设备 Download PDFInfo
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- WO2023138363A1 WO2023138363A1 PCT/CN2023/070288 CN2023070288W WO2023138363A1 WO 2023138363 A1 WO2023138363 A1 WO 2023138363A1 CN 2023070288 W CN2023070288 W CN 2023070288W WO 2023138363 A1 WO2023138363 A1 WO 2023138363A1
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- WIPO (PCT)
- Prior art keywords
- rotating
- shaft
- connector
- elastic member
- shaft structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
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- 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
Definitions
- the present disclosure relates to the technical field of terminal equipment, in particular to a rotating shaft structure and electronic equipment.
- the hinge structure of the foldable mobile phone is relatively complicated, and the reliability and motion synchronization are not high.
- Embodiments of the present disclosure provide a rotating shaft structure and electronic equipment, which can simplify the transmission structure and increase reliability and motion synchronization.
- an embodiment of the present disclosure provides a rotating shaft structure, including: two symmetrically arranged rotating assemblies, the rotating assembly includes a first shaft and a rotating connecting piece, the rotating connecting piece is arranged on the first shaft and has a tooth portion and a cam portion, the gears of the rotating connecting pieces of the two rotating assemblies are in transmission connection; a hovering holding assembly includes a moving cam and a first elastic member, and the first elastic member is elastically deformed on one side of the moving cam along the axial direction of the first shaft.
- the cam portion on the connecting piece is matched and connected.
- the rotating assembly further includes a second shaft and a transmission gear, the transmission gear is disposed on the second shaft and meshes with the tooth portion of the rotating connection, and the transmission gears of the two rotating assemblies keep meshing.
- the first shaft is passed through the moving cam, and the first elastic member is sheathed on the first shaft.
- the second shaft is passed through the moving cam, and the first elastic member is sheathed on the second shaft.
- the hovering holding assembly further includes an end limiter, the end limiter and the moving cam are arranged at intervals relative to each other along the axial direction of the first shaft, and the first elastic member is elastically deformably disposed between the end limiter and the moving cam.
- the rotation assembly further includes a load-bearing connection fixedly connected to the rotation connection, and the load-bearing connection is configured as an external load-bearing connection.
- the rotating shaft structure further includes a guide seat and a guide moving part
- the guide seat is provided with an arc-shaped guide rail
- the guide mover is rotatably held on the guide seat along the arc-shaped guide rail
- the guide mover is fixedly connected to the bearing connector
- the rotating assembly further includes a sliding connecting piece connecting the rotating connecting piece and the carrying connecting piece, the carrying connecting piece is provided with a guide groove, and the sliding connecting piece can slide along the extending direction of the guiding groove.
- the rotating assembly further includes a second elastic member configured to elastically deform the sliding connecting member, the rotating connecting member and the bearing connecting member to fasten and connect along the depth direction of the guide groove.
- one end of the sliding link is connected to the bearing link, and the other end of the sliding link passes through the guide groove and the rotating link, and the second elastic member is elastically deformably disposed between the other end of the sliding link and the rotating link.
- flange parts are respectively provided at both ends of the sliding connector, wherein the flange part at one end is closely connected to the bearing connector, and the area between the flange parts at both ends on the sliding connector passes through the guide groove of the bearing connector and the rotating connector in turn; the flange part at the other end is disposed opposite to the rotating connector, and the second elastic member is elastically deformably arranged between the flange part and the rotating connector, so that the sliding connector, the rotating connector and the bearing connector are fastened along the depth direction of the guide groove.
- the sliding connection has a pin configuration.
- an embodiment of the present disclosure provides an electronic device, including the rotating shaft structure described in any one of the above embodiments.
- the embodiment of the present disclosure realizes the rotation unfolding or rotation folding between the two rotating components through the transmission connection between the teeth of the rotating connecting parts of the two rotating components; the first elastic part of the hovering holding component pushes the moving cam against the cam part on the rotating connecting part, and the moving cam exerts a frictional force on the rotating connecting part to keep the rotating connecting part at a desired position, such as being kept in an unfolded state or a folded state, so as to realize the effect of hovering; reliability, and the synchronous motion characteristics of the tooth portion and the cam portion can improve the motion synchronization of the rotating shaft structure.
- Fig. 1 is a first axonometric structure diagram of a rotating shaft structure provided by some embodiments of the present disclosure
- Fig. 2 is a second axonometric structural view of the shaft structure provided by some embodiments of the present disclosure
- Fig. 3 is a partial exploded structure diagram of the shaft structure provided by some embodiments of the present disclosure.
- Fig. 4 is an axonometric structure diagram of an electronic device provided by some embodiments of the present disclosure.
- 1-electronic equipment 101-rotating shaft structure, 10-rotating assembly, 11-first shaft, 12-rotating connector, 121-teeth, 122-cam, 13-second shaft, 14-transmission gear, 15-loading connector, 151-guiding groove, 16-sliding connector, 17-second elastic member, 20-hovering holding component, 21-moving cam, 22-first elastic member, 23-end limiter, 31- Guide seat, 311-curved guide rail, 32-guiding moving part.
- first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
- a feature defined as “first” or “second” may explicitly or implicitly include one or more of said features.
- “plurality” means two or more, unless otherwise specifically defined.
- a and/or B includes the following three combinations: A only, B only, and a combination of A and B.
- the word "exemplary” is used to mean “serving as an example, illustration, or illustration.” Any embodiment described in this disclosure as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.
- the following description is given to enable any person skilled in the art to make and use the present disclosure. In the following description, details are set forth for purposes of explanation. It should be understood that one of ordinary skill in the art would recognize that the present disclosure may be practiced without the use of these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of the present disclosure with unnecessary detail. Therefore, the present disclosure is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed in the present disclosure.
- the embodiment of the present disclosure provides a rotating shaft structure 101, which includes two symmetrically arranged rotating components 10 and a hovering holding component 20, which can simplify the transmission structure and increase reliability and motion synchronization.
- the hinge structure 101 can be applied to various electronic devices that require rotation and folding, such as foldable mobile terminals, so as to realize corresponding rotation or folding functions.
- the rotating assembly 10 includes a first shaft 11 and a rotating connecting member 12 .
- the rotating connecting member 12 is arranged on the first shaft 11 and has a tooth portion 121 and a cam portion 122 .
- the tooth portion 121 and the cam portion 122 are integrally formed on the rotating connecting member 12, which have better movement synchronization.
- the tooth parts 121 of the rotating connecting parts 12 of the two rotating assemblies 10 can be directly meshed for direct transmission connection; or, the tooth parts 121 of the rotating connecting parts 12 of the two rotating assemblies 10 can also be indirectly connected through an intermediate transmission structure.
- the rotating connecting members 12 of the two rotating assemblies 10 can be relatively rotated, so that the angle between the two rotating assemblies 10 changes, and the rotation unfolding or folding effect is realized.
- the hovering holding assembly 20 includes a moving cam 21 and a first elastic member 22.
- the first elastic member 22 is elastically deformed along the axial direction of the first shaft 11 and is disposed on one side of the moving cam 21.
- the side of the moving cam 21 away from the first elastic member 22 is respectively mated with the cam portions 122 on the rotating connectors 12 of the two rotating assemblies 10.
- the first elastic member 22 and the rotating connecting member 12 are located at two ends of the moving cam 21 .
- the first elastic member 22 is elastically deformed along the axial direction of the first shaft 11, and the moving cam 21 can move along the axial direction of the first shaft 11; like this, the elastic force of the first elastic member 22 can press the side of the moving cam 21 away from the first elastic member 22 against the cam portion 122 on the rotating connector 12, so that the moving cam 21 and the cam portion 122 of the rotating connecting member 12 are reliably fitted and connected, and friction is generated between the moving cam 21 and the cam portion 122 of the rotating connecting member 12 force.
- the rotating connecting member 12 can hover at a desired position and remain stationary at the position, for example, keeping the electronic device 1 where the rotating shaft structure 101 is located in an unfolded state or a folded state.
- the type of the first elastic member 22 may be determined according to actual needs, such as a spring, an elastic sheet, etc., which are not limited in this embodiment of the present disclosure.
- the rotating shaft structure 101 provided by the embodiment of the present disclosure realizes the rotating unfolding or rotating folding between the two rotating assemblies 10; or collapsed state to achieve the effect of hovering and holding. Thanks to the integral structure in which the tooth portion 121 and the cam portion 122 are integrally formed on the rotating connector 12, the transmission connection relationship can be reduced to improve transmission reliability, and the tooth portion 121 and the cam portion 122 have synchronous motion characteristics, which can improve the motion synchronization of the shaft structure 101.
- the rotating assembly 10 may further include a second shaft 13 and a transmission gear 14 .
- the second shaft 13 is arranged parallel to the first shaft 11
- the transmission gear 14 is disposed on the second shaft 13 and meshes with the tooth portion 121 of the rotating connector 12
- the transmission gears 14 of the two rotating assemblies 10 keep meshing. In this way, an indirect transmission connection is formed between the tooth portions 121 of the two rotating connecting parts 12 through the two transmission gears 14 .
- each rotating assembly 10 is provided with a second shaft 13, so that the shaft structure 101 has two second shafts 13, which increases the redundancy and robustness of the shaft structure 101, and prevents the transmission gear 14 from jumping teeth when one of the second shafts 13 breaks, ensuring the reliability of the meshing relationship.
- the arrangement of the first axis 11 may be determined according to actual needs, which is not limited in this embodiment of the present disclosure.
- the first shaft 11 can pass through the moving cam 21 , and the first elastic member 22 can be sleeved on the first shaft 11 . In this way, the moving cam 21 can be guided and structurally supported by the first shaft 11 , and the elastic deformation of the first elastic member 22 can be guided and limited by the first shaft 11 .
- the arrangement of the second shaft 13 may be determined according to actual needs, which is not limited in this embodiment of the present disclosure.
- the second shaft 13 can pass through the moving cam 21 , and the second shaft 13 can be sleeved with the first elastic member 22 . In this way, the moving cam 21 can be guided and structurally supported by the second shaft 13 , and the elastic deformation of the first elastic member 22 can be guided and limited by the second shaft 13 .
- the hovering holding assembly 20 may further include an end stopper 23 .
- the end limiting member 23 and the moving cam 21 are disposed at intervals relative to each other along the axial direction of the first shaft 11 , and the first elastic member 22 is elastically deformably disposed between the end limiting member 23 and the moving cam 21 .
- the cam portion 122 will drive the moving cam 21 to move along the axial direction of the first shaft 11; correspondingly, the relative position between the moving cam 21 and the end stopper 23 changes, so that the elastic deformation of the first elastic member 22 changes to accumulate elastic energy.
- the elastic force of the first elastic member 22 pushes the moving cam 21 against the cam portion 122, and the moving cam 21 exerts a frictional force on the rotating connecting member 12 to prevent the rotating connecting member 12 from rotating autonomously to achieve the purpose of hovering.
- the rotating assembly 10 may further include a bearing connecting member 15 fixedly connected to the rotating connecting member 12, and the bearing connecting member 15 is configured as an external bearing connection. In this way, the user can drive the rotating connecting member 12 to rotate through the bearing connecting member 15 .
- the rotating shaft structure 101 may also include a guide seat 31 and a guide moving member 32.
- the guide seat 31 is provided with an arc-shaped guide rail 311.
- the guide mover 32 is rotatably held on the guide seat 31 along the arc-shaped guide rail 311.
- the guide mover 32 is fixedly connected to the load-bearing connector 15.
- the guide seat 31 can guide the rotation of the guide movable member 32 through the arc-shaped guide rail 311, and then guide the bearing connector 15 connected to the guide movable member 32 and the rotating connector 12 connected to the bearing connector 15, thereby increasing the rotation accuracy of the rotating connector 12.
- the rotation assembly 10 may further include a sliding connection 16 connecting the rotation connection 12 and the load connection 15 , so that the rotation connection 12 and the load connection 15 are reliably connected and rotate synchronously.
- Bearing connector 15 can be provided with guide groove 151, and sliding connector 16 can slide along the extending direction of guide groove 151;
- the rotating assembly 10 may further include a second elastic member 17 configured to elastically deform the sliding connecting member 16 , the rotating connecting member 12 and the bearing connecting member 15 to fasten and connect along the depth direction of the guide groove 151 .
- the sliding connector 16, the rotating connector 12 and the bearing connector 15 can be elastically connected, which can ensure the degree of freedom for the sliding connector 16 to slide along the extending direction of the guide groove 151, and can prevent the sliding connector 16, the rotating connector 12 and the bearing connector 15 from loosening along the depth direction of the guide groove 151, thereby ensuring the connection reliability and synchronization of the rotating connector 12 and the bearing connector 15 in the direction of rotation.
- the type of the second elastic member 17 may be determined according to actual needs, such as a spring, a shrapnel, etc., which are not limited in the embodiments of the present disclosure.
- the arrangement of the second elastic member 17 may be determined according to actual needs, which is not limited in this embodiment of the present disclosure.
- one end of the sliding connector 16 can be connected to the bearing connector 15, and the other end of the sliding connector 16 can pass through the guide groove 151 and the rotating connector 12, and the second elastic member 17 is elastically deformably disposed between the other end of the sliding connector 16 and the rotating connector 12, so as to realize elastic and reliable connection of the sliding connector 16, the rotating connector 12 and the bearing connector 15 along the depth direction of the guide groove 151.
- the sliding connector 16 may have a pin structure; Exemplary, two ends of the sliding connector 16 are respectively provided with flange parts, wherein the flange part at one end is closely connected to the load-bearing connector 15, and the area between the flange parts at both ends passes through the guide groove 151 of the load-bearing connector 15 and the rotating connector 12 in turn; 5 is fastened along the depth direction of the guide groove 151.
- an embodiment of the present disclosure provides an electronic device 1 , and the electronic device 1 includes the rotating shaft structure 101 of any of the above embodiments.
- the type of the electronic device 1 may be determined according to actual needs, and may be various types of devices that require rotation and folding, such as a foldable mobile terminal, which is not limited in this embodiment of the present disclosure.
- the number of rotating shaft structures 101 provided on the same electronic device 1 may be determined according to actual needs, which is not limited in this embodiment of the present disclosure.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Pivots And Pivotal Connections (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
一种转轴结构（101），包括：对称设置的两个转动组件（10），所述转动组件（10）包括第一轴（11）和转动连接件（12），所述转动连接件（12）可转动地保持于所述第一轴（10）上且具有齿部（121）和凸轮部（122），所述两个转动组件（10）的转动连接件（12）的齿部（121）之间传动连接；悬停保持组件（20），包括移动凸轮（21）和第一弹性件（22），所述第一弹性件（22）沿所述第一轴（11）的轴向弹性变形地设置于所述移动凸轮（21）的一侧，所述移动凸轮（21）远离所述第一弹性件（22）的一侧分别和所述两个转动组件（10）的转动连接件（12）上的凸轮部（122）配合连接。齿部（121）和凸轮部（122）一体形成于转动连接件（12）上而具有一体式构造，可以减少传动连接关系而提高传动可靠性，且使齿部（121）和凸轮部（122）具有同步运动特性，可以提高转轴结构（101）的运动同步性。
Description
本申请要求于2022年1月19日提交中国国家知识产权局、申请号为202220145859.1、发明名称为“转轴结构及电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
本公开涉及终端设备技术领域，具体涉及一种转轴结构及电子设备。
随着柔性屏技术的发展，可折叠手机的发展明显加快。
在相关技术中，可折叠手机的转轴结构比较复杂，可靠性和运动同步性不高。
本公开实施例提供一种转轴结构及电子设备，可以简化传动结构，增加可靠性和运动同步性。
一方面，本公开实施例提供一种转轴结构，包括：对称设置的两个转动组件，所述转动组件包括第一轴和转动连接件，所述转动连接件设置于所述第一轴上且具有齿部和凸轮部，所述两个转动组件的转动连接件的齿部之间传动连接；悬停保持组件，包括移动凸轮和第一弹性件，所述第一弹性件沿所述第一轴的轴向弹性变形地设置于所述移动凸轮的一侧，所述移动凸轮远离所述第一弹性件的一侧分别和所述两个转动组件的转动连接件上的凸轮部配合连接。
在一些实施例中，所述转动组件还包括第二轴和传动齿轮，所述传动齿轮设置于所述第二轴上且和所述转动连接件的齿部啮合，所述两个转动组件的传动齿轮之间保持啮合。
在一些实施例中，所述第一轴穿设于所述移动凸轮上，且所述第一轴上套设有所述第一弹性件。
在一些实施例中，所述第二轴穿设于所述移动凸轮上，且所述第二轴上套设有所述第一弹性件。
在一些实施例中，所述悬停保持组件还包括端部限位件，所述端部限位件和所述移动凸轮沿所述第一轴的轴向相对间隔设置，所述第一弹性件弹性变形地设置于所述端部限位件和所述移动凸轮之间。
在一些实施例中，所述转动组件还包括和所述转动连接件固定连接的承载连接件，所述承载连接件被配置为对外承载连接。
在一些实施例中，所述转轴结构还包括导向座和导向动件，所述导向座上设有弧形导轨，所述导向动件可沿所述弧形导轨转动地保持于所述导向座上，所述导向动件和所述承载连接件固定连接。
在一些实施例中，所述转动组件还包括连接所述转动连接件和所述承载连接件的滑动连接件，所述承载连接件上设有导向槽，所述滑动连接件可沿所述导向槽的延伸方向滑动。
在一些实施例中，所述转动组件还包括第二弹性件，所述第二弹性件被配置为弹性变形地使所述滑动连接件、所述转动连接件和所述承载连接件沿所述导向槽的深度方向紧固连接。
在一些实施例中，所述滑动连接件一端和所述承载连接件连接，而所述滑动连接件的另一端穿过所述导向槽和所述转动连接件，所述第二弹性件弹性变形地设置于所述滑动连接件的另一端和所述转动连接件之间。
在一些实施例中，所述滑动连接件两端分别设有法兰部，其中一端的法兰部和所述承载连接件紧贴连接，所述滑动连接件上位于两端法兰部之间的区域依次穿过所述承载连接件的导向槽和所述转动连接件；另一端的法兰部和所述转动连接件相对设置，所述第二弹性件弹性变形地设置于该法兰部和所述转动连接件之间，使所述滑动连接件、所述转动连接件和所述承载连接件沿所述导向槽的深度方向紧固。
在一些实施例中，所述滑动连接件具有销结构。
另一方面，本公开实施例提供一种电子设备，包括以上任一实施例所述的转轴结构。
本公开实施例通过两个转动组件的转动连接件的齿部之间的传动连接，实现两个转动组件之间的转动展开或转动折叠；通过悬停保持组件的第一弹性件将移动凸轮顶紧在转动连接件上的凸轮部上，由移动凸轮对转动连接件施加摩擦力而使转动连接件保持在所需的位置、例如保持在展开状态或折叠状态，实现悬停保持效果；齿部和凸轮部一体形成于转动连接件上而具有一体式构造，可以减少传动连接关系而提高传动可靠性，且使齿部和凸轮部具有同步运动特性，可以提高转轴结构的运动同步性。
为了更清楚地说明本公开实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本公开一些实施例提供的转轴结构的第一轴测结构图；
图2是本公开一些实施例提供的转轴结构的第二轴测结构图；
图3是本公开一些实施例提供的转轴结构的局部爆炸结构图；
图4是本公开一些实施例提供的电子设备的轴测结构图。
主要元件符号说明：
1-电子设备，101-转轴结构，10-转动组件，11-第一轴，12-转动连接件，121-齿部，122-凸轮部，13-第二轴，14-传动齿轮，15-承载连接件，151-导向槽，16-滑动连接件，17-第二弹性件，20-悬停保持组件，21-移动凸轮，22-第一弹性件，23-端部限位件，31-导向座，311-弧形导轨，32-导向动件。
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域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，都属于本公开保护的范围。
在本公开的描述中，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”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公开和简化描述，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公开的限制。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所述特征。在本公开的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
“A和/或B”，包括以下三种组合：仅A，仅B，及A和B的组合。
本公开中“适用于”或“被配置为”的使用意味着开放和包容性的语言，其不排除适用于或被配置为执行额外任务或步骤的设备。另外，“基于”的使用意味着开放和包容性，因为“基于”一个或多个所述条件或值的过程、步骤、计算或其他动作在实践中可以基于额外条件或超出所述的值。
在本公开中，“示例性”一词用来表示“用作例子、例证或说明”。本公开中被描述为“示例性”的任何实施例不一定被解释为比其它实施例更优选或更具优势。为了使本领域任何技术人员能够实现和使用本公开，给出了以下描述。在以下描述中，为了解释的目的而列出了细节。应当明白的是，本领域普通技术人员可以认识到，在不使用这些特定细节的情况下也可以实现本公开。在其它实例中，不会对公知的结构和过程进行详细阐述，以避免不必要的细节使本公开的描述变得晦涩。因此，本公开并非旨在限于所示的实施例，而是与符合本公开所公开的原理和特征的最广范围相一致。
如图1~2所示，本公开实施例提供一种转轴结构101，该转轴结构101包括对称设置的两个转动组件10以及悬停保持组件20，可以简化传动结构，增加可靠性和运动同步性。这里，转轴结构101可以应用于各类具有旋转折叠需要的电子设备中，诸如可折叠移动终端等，以实现相应的转动或折叠功能。
转动组件10包括第一轴11和转动连接件12，转动连接件12设置于第一轴11上且具有齿部121和凸轮部122，两个转动组件10的转动连接件12的齿部121之间传动连接。这里，齿部121和凸轮部122一体形成于转动连接件12上，具有较佳的运动同步性。两个转动组件10的转动连接件12的齿部121之间可以直接啮合，以进行直接的传动连接；或者，两个转动组件10的转动连接件12的齿部121之间也可以通过中间传动结构进行间接的传动连接。通过两个转动组件10的转动连接件12的齿部121之间的传动连接，两个转动组件10的转动连接件12之间可以进行相对旋转，使得两个转动组件10之间的夹角发生改变，实现转动展开或折叠效果。
悬停保持组件20包括移动凸轮21和第一弹性件22，第一弹性件22沿第一轴11的轴向弹性变形地设置于移动凸轮21的一侧，移动凸轮21远离第一弹性件22的一侧分别和两个转动组件10的转动连接件12上的凸轮部122配合连接。换言之，沿第一轴11的轴向，第一弹性件22和转动连接件12分居移动凸轮21的两端。第一弹性件22沿第一轴11的轴向弹性变形，而移动凸轮21可以沿第一轴11的轴向移动；这样，第一弹性件22的弹性力可以将移动凸轮21远离第一弹性件22的一侧顶紧在转动连接件12上的凸轮部122上，使得移动凸轮21和转动连接件12的凸轮部122可靠地进行配合连接，并使移动凸轮21和转动连接件12的凸轮部122之间产生摩擦力。在摩擦力的作用下，在驱动转动连接件12转动的外驱动力撤除后，转动连接件12可以在所需的位置实现悬停而保持静止于该位置不变，例如使转轴结构101所在电子设备1保持在展开状态或折叠状态。第一弹性件22的类型可以根据实际需要决定，可以采用诸如弹簧、弹性片等类型，本公开实施例对此不作限定。
本公开实施例提供的转轴结构101，一方面通过两个转动组件10的转动连接件12的齿部121之间的传动连接，实现两个转动组件10之间的转动展开或转动折叠；另一方面通过悬停保持组件20的第一弹性件22将移动凸轮21顶紧在转动连接件12上的凸轮部122上，由移动凸轮21对转动连接件12施加摩擦力而使转动连接件12保持在所需的位置、例如保持在展开状态或折叠状态，实现悬停保持效果。得益于齿部121和凸轮部122一体形成于转动连接件12上的一体式构造，可以减少传动连接关系而提高传动可靠性，且齿部121和凸轮部122具有同步运动特性，可以提高转轴结构101的运动同步性。
在一些实施例中，转动组件10还可以包括第二轴13和传动齿轮14。第二轴13和第一轴11平行设置，传动齿轮14设置于第二轴13上且和转动连接件12的齿部121啮合，两个转动组件10的传动齿轮14之间保持啮合。这样，两个转动连接件12的齿部121之间通过两个传动齿轮14而形成间接的传动连接。通过第二轴13和传动齿轮14的结构设置，一方面可以通过传动齿轮14和转动连接件12的对应设置关系保证两个转动组件10在转动时的同步性，另一方面可以通过第二轴13对传动齿轮14进行导向和结构支撑、增加转轴结构101的承载能力和结构稳定性。此外，每个转动组件10分别设有一个第二轴13，可以使得转轴结构101具有两个第二轴13，增加转轴结构101的冗余度和鲁棒性，在其中一个第二轴13发生断裂时可以避免传动齿轮14发生跳齿，保证啮合关系的可靠性。
第一轴11的设置方式可以根据实际需要决定，本公开实施例对此不作限定。在一些实施例中，第一轴11可以穿设于移动凸轮21上，且第一轴11上可以套设有第一弹性件22。这样，可以通过第一轴11对移动凸轮21进行导向和结构支撑，以及通过第一轴11对第一弹性件22的弹性变形进行导向限位。
第二轴13的设置方式可以根据实际需要决定，本公开实施例对此不作限定。在一些示例中，第二轴13可以穿设于移动凸轮21上，且第二轴13上可以套设有第一弹性件22。这样，可以通过第二轴13对移动凸轮21进行导向和结构支撑，以及通过第二轴13对第一弹性件22的弹性变形进行导向限位。
在一些实施例中，悬停保持组件20还可以包括端部限位件23。端部限位件23和移动凸轮21沿第一轴11的轴向相对间隔设置，第一弹性件22弹性变形地设置于端部限位件23和移动凸轮21之间。转动连接件12在外力驱动下进行转动时，凸轮部122会驱动移动凸轮21沿第一轴11的轴向进行移动；相应地，移动凸轮21和端部限位件23之间的相对位置发生改变，使得第一弹性件22的弹性形变量发生改变而积蓄弹性能量。在外力撤除后，第一弹性件22的弹性力将移动凸轮21顶紧于凸轮部122上，由移动凸轮21对转动连接件12施加摩擦力，阻止转动连接件12自主转动而实现悬停保持目的。
在一些实施例中，转动组件10还可以包括和转动连接件12固定连接的承载连接件15，承载连接件15被配置为对外承载连接。这样，用户可以通过承载连接件15驱动转动连接件12进行转动。如图3所示，在一些示例中，转轴结构101还可以包括导向座31和导向动件32，导向座31上设有弧形导轨311，导向动件32可沿弧形导轨311转动地保持于导向座31上，导向动件32和承载连接件15固定连接。这样，导向座31可以通过弧形导轨311对导向动件32的转动进行导向，进而对和导向动件32连接的承载连接件15以及和承载连接件15连接的转动连接件12进行导向，增加转动连接件12的转动精度。
如图1~2所示，在一些示例中，转动组件10还可以包括连接转动连接件12和承载连接件15的滑动连接件16，使得转动连接件12和承载连接件15实现可靠连接而同步转动。承载连接件15上可以设有导向槽151，滑动连接件16可沿导向槽151的延伸方向滑动；这样，承载连接件15受到驱动其转动的外驱动力时，承载连接件15可以通过滑动连接件16驱动转动连接件12同步转动；滑动连接件16可以沿导向槽151的延伸方向进行滑动调整，从而提供承载连接件15和转动连接件12之间的同步转动自由度，避免二者发生运动卡死。
示例性的，转动组件10还可以包括第二弹性件17，第二弹性件17被配置为弹性变形地使滑动连接件16、转动连接件12和承载连接件15沿导向槽151的深度方向紧固连接。这样，沿导向槽151的深度方向，滑动连接件16、转动连接件12和承载连接件15之间可以进行弹性连接，可以保证滑动连接件16沿导向槽151的延伸方向进行滑动的自由度，可以防止滑动连接件16、转动连接件12和承载连接件15沿导向槽151的深度方向发生松动，从而保证转动连接件12和承载连接件15在转动方向上的连接可靠性和同步性。
第二弹性件17的类型可以根据实际需要决定，可以采用诸如弹簧、弹片等类型，本公开实施例对此不作限定。第二弹性件17的设置方式可以根据实际需要决定，本公开实施例对此不作限定。示例性的，滑动连接件16一端可以和承载连接件15连接，而滑动连接件16的另一端可以穿过导向槽151和转动连接件12，第二弹性件17弹性变形地设置于滑动连接件16的另一端和转动连接件12之间，实现滑动连接件16、转动连接件12和承载连接件15沿导向槽151的深度方向的弹性可靠连接。这里，滑动连接件16可以具有销结构；示例性的，滑动连接件16两端分别设有法兰部，其中一端的法兰部和承载连接件15紧贴连接，位于两端法兰部之间的区域依次穿过承载连接件15的导向槽151和转动连接件12；另一端的法兰部和转动连接件12相对设置，第二弹性件17弹性变形地设置于该法兰部和转动连接件12之间，使滑动连接件16、转动连接件12和承载连接件15沿导向槽151的深度方向紧固。
如图1~4所示，本公开实施例提供一种电子设备1，该电子设备1包括以上任一实施例的转轴结构101。这里，电子设备1的类型可以根据实际需要决定，可以是各类具有旋转折叠需要的设备类型，诸如可折叠移动终端等，本公开实施例对此不作限定。同一电子设备1上设置的转轴结构101的数量可以根据实际需要决定，本公开实施例对此不作限定。
以上对本公开实施例所提供的电子设备进行了详细介绍，本文中应用了具体个例对本公开的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本公开的方法及其核心思想；同时，对于本领域的技术人员，依据本公开的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本公开的限制。
Claims (13)
- 一种转轴结构，包括：对称设置的两个转动组件，所述转动组件包括第一轴和转动连接件，所述转动连接件设置于所述第一轴上且具有齿部和凸轮部，所述两个转动组件的转动连接件的齿部之间传动连接；悬停保持组件，包括移动凸轮和第一弹性件，所述第一弹性件沿所述第一轴的轴向弹性变形地设置于所述移动凸轮的一侧，所述移动凸轮远离所述第一弹性件的一侧分别和所述两个转动组件的转动连接件上的凸轮部配合连接。
- 根据权利要求1所述的转轴结构，其中，所述转动组件还包括第二轴和传动齿轮，所述第二轴和所述第一轴平行设置，所述传动齿轮设置于所述第二轴上且和所述转动连接件的齿部啮合，所述两个转动组件的传动齿轮之间保持啮合。
- 根据权利要求2所述的转轴结构，其中，所述第一轴穿设于所述移动凸轮上，且所述第一轴上套设有所述第一弹性件。
- 根据权利要求2所述的转轴结构，其中，所述第二轴穿设于所述移动凸轮上，且所述第二轴上套设有所述第一弹性件。
- 根据权利要求1所述的转轴结构，其中，所述悬停保持组件还包括端部限位件，所述端部限位件和所述移动凸轮沿所述第一轴的轴向相对间隔设置，所述第一弹性件弹性变形地设置于所述端部限位件和所述移动凸轮之间。
- 根据权利要求1所述的转轴结构，其中，所述转动组件还包括和所述转动连接件固定连接的承载连接件，所述承载连接件被配置为对外承载连接。
- 根据权利要求6所述的转轴结构，其中，还包括导向座和导向动件，所述导向座上设有弧形导轨，所述导向动件可沿所述弧形导轨转动地保持于所述导向座上，所述导向动件和所述承载连接件固定连接。
- 根据权利要求6所述的转轴结构，其中，所述转动组件还包括连接所述转动连接件和所述承载连接件的滑动连接件，所述承载连接件上设有导向槽，所述滑动连接件可沿所述导向槽的延伸方向滑动。
- 根据权利要求8所述的转轴结构，其中，所述转动组件还包括第二弹性件，所述第二弹性件被配置为弹性变形地使所述滑动连接件、所述转动连接件和所述承载连接件沿所述导向槽的深度方向紧固连接。
- 根据权利要求9所述的转轴结构，其中，所述滑动连接件一端和所述承载连接件连接，而所述滑动连接件的另一端穿过所述导向槽和所述转动连接件，所述第二弹性件弹性变形地设置于所述滑动连接件的另一端和所述转动连接件之间。
- 根据权利要求10所述的转轴结构，其中，所述滑动连接件两端分别设有法兰部，其中一端的法兰部和所述承载连接件紧贴连接，所述滑动连接件上位于两端法兰部之间的区域依次穿过所述承载连接件的导向槽和所述转动连接件；另一端的法兰部和所述转动连接件相对设置，所述第二弹性件弹性变形地设置于该法兰部和所述转动连接件之间，使所述滑动连接件、所述转动连接件和所述承载连接件沿所述导向槽的深度方向紧固。
- 根据权利要求9所述的转轴结构，其中，所述滑动连接件具有销结构。
- 一种电子设备，其中，包括权利要求1-12中任一项所述的转轴结构。
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