技术领域Technical Field
本申请涉及可折叠电子技术领域，尤其涉及一种阻尼机构、折叠铰链及电子设备。The present application relates to the field of foldable electronic technology, and in particular to a damping mechanism, a folding hinge and an electronic device.
背景技术Background Art
随着柔性折叠屏技术日趋成熟，柔性折叠终端产品已经成为一大趋势，折叠终端产品(如折叠手机、折叠平板、折叠电脑等电子设备)需要满足较高的可靠性，较好的操作体验及外观，这样才能被消费者所接受。折叠较链作为折叠终端产品的核心功能部件，其可靠性和操作体验很大程度取决于阻尼机构的性能。As flexible folding screen technology matures, flexible folding terminal products have become a major trend. Folding terminal products (such as folding mobile phones, folding tablets, folding computers and other electronic devices) need to meet higher reliability, better operating experience and appearance, so that they can be accepted by consumers. As the core functional component of folding terminal products, the reliability and operating experience of the folding hinge largely depend on the performance of the damping mechanism.
阻尼机构是内外折叠设备中提供用户开合手感的关键机构。目前常用的一种阻尼方案是采用多组弹簧顶住凹凸轮结构，通过旋转轴转动，实现不同的弹簧压缩量，达到改变阻尼力的目的。然而，这种阻尼机构的凹凸轮容易产生异响的问题，且在折叠过程中容易损伤设备元件。The damping mechanism is a key mechanism in the inside-out folding device that provides the user with a comfortable opening and closing feel. Currently, a commonly used damping solution is to use multiple sets of springs to support the concave cam structure, and achieve different spring compression amounts by rotating the rotating shaft to achieve the purpose of changing the damping force. However, the concave cam of this damping mechanism is prone to abnormal noise and is easy to damage device components during the folding process.
发明内容Summary of the invention
为了解决上述技术问题，本申请提供一种阻尼机构、折叠铰链及电子设备。该阻尼机构结构简单，且受力和移动均匀，无异响，不会对设备元件造成损伤。In order to solve the above technical problems, the present application provides a damping mechanism, a folding hinge and an electronic device. The damping mechanism has a simple structure, and is evenly stressed and moved, without abnormal noise, and will not cause damage to device components.
第一方面，本申请提供一种阻尼机构，包括：In a first aspect, the present application provides a damping mechanism, comprising:
中梁，所述中梁沿第一方向延伸，在第二方向上在所述中梁的相对两侧分别设置门板，所述门板沿所述第一方向延伸，且与所述中梁转动连接，所述第二方向与所述第一方向垂直；A center beam, the center beam extends along a first direction, door panels are respectively arranged on opposite sides of the center beam in a second direction, the door panels extend along the first direction and are rotatably connected to the center beam, and the second direction is perpendicular to the first direction;
阻尼单元，所述阻尼单元包括两个转轴、两个第一凸轮结构、两个第二凸轮结构和两个摆臂，两个所述转轴平行固定在所述中梁上，两个所述第一凸轮结构以可转动方式分别安装在两个所述转轴上，两个所述第二凸轮结构以螺纹配合的方式分别安装在两个所述转轴上，两个所述摆臂的一端分别与两个所述第一凸轮结构连接，两个所述摆臂的另一端分别与其中一个所述门板连接，所述摆臂构造为随所述门板相对所述中梁转动而带动所述第一凸轮结构绕所述转轴转动，并且相对所述门板滑动，所述第一凸轮结构和所述第二凸轮结构沿所述转轴轴向布置，所述第一凸轮朝向所述第二凸轮结构的一端设置有第一凹陷部，所述第二凸轮朝向所述第一凸轮结构的一端设置有第二凹陷部，所述第一凹陷部构造为与所述第二凹陷部相抵接，在所述第一凸轮结构绕所述转轴转动时，所述第二凸轮结构沿所述转轴螺旋移动。The damping unit comprises two rotating shafts, two first cam structures, two second cam structures and two swing arms, the two rotating shafts are fixed in parallel on the middle beam, the two first cam structures are respectively mounted on the two rotating shafts in a rotatable manner, the two second cam structures are respectively mounted on the two rotating shafts in a threaded manner, one end of the two swing arms are respectively connected to the two first cam structures, the other end of the two swing arms are respectively connected to one of the door panels, the swing arms are constructed to drive the first cam structure to rotate around the rotating shaft as the door panel rotates relative to the middle beam, and to slide relative to the door panel, the first cam structure and the second cam structure are axially arranged along the rotating shaft, the first cam is provided with a first recessed portion at one end facing the second cam structure, the second cam is provided with a second recessed portion at one end facing the first cam structure, the first recessed portion is constructed to abut against the second recessed portion, and when the first cam structure rotates around the rotating shaft, the second cam structure moves spirally along the rotating shaft.
根据第一方面，本申请的阻尼机构，由于第二凸轮结构与以螺纹配合的方式连接，将第二凸轮结构相对转轴的直线运动转变为螺旋运动，这样使得第二凸轮结构运动变缓，且受力更加均匀，使得整个折叠过程中，第二凸轮结构均匀缓慢移动，不会发生在快到折叠状态时突然迅速闭合的情况，中不仅消除了转动虚位问题，而且避免出现异响以及损伤屏幕等元件的问题。此外，由于加速度降低，使得设备的折叠过程更平滑，用户转动手感和折叠体验更好。According to the first aspect, the damping mechanism of the present application, since the second cam structure is connected with the rotating shaft in a threaded manner, converts the linear motion of the second cam structure relative to the rotating shaft into a spiral motion, so that the second cam structure moves slower and the force is more evenly applied, so that during the entire folding process, the second cam structure moves evenly and slowly, and will not suddenly close quickly when it is about to reach the folding state. This not only eliminates the problem of rotational virtual position, but also avoids the problem of abnormal noise and damage to components such as the screen. In addition, due to the reduced acceleration, the folding process of the device is smoother, and the user's rotation feel and folding experience are better.
根据第一方面，或者以上第一方面的任意一种实现方式，所述第一凸轮结构和所述第二凸轮结构呈两端开口的中空结构，所述第一凸轮结构套设在所述转轴上，所述第二凸轮结构内部和所述转轴上设置有相配合的螺纹，所述转轴上的螺纹的长度大于所述第二凸轮结构内部的螺纹的长度。这样通过设置合适长度的螺纹使得第二凸轮结构在折叠过程中均匀移动，从而提高用户转动手感和折叠体验。According to the first aspect, or any implementation of the first aspect above, the first cam structure and the second cam structure are hollow structures with openings at both ends, the first cam structure is sleeved on the rotating shaft, matching threads are provided inside the second cam structure and on the rotating shaft, and the length of the threads on the rotating shaft is greater than the length of the threads inside the second cam structure. In this way, by providing threads of appropriate length, the second cam structure moves evenly during the folding process, thereby improving the user's rotation feel and folding experience.
根据第一方面，或者以上第一方面的任意一种实现方式，所述转轴上的螺纹比所述第二凸轮结构内部的螺纹长1-3个螺距。这样通过设置合适长度的螺纹使得第二凸轮结构在折叠过程中均匀移动，从而提高用户转动手感和折叠体验。According to the first aspect, or any implementation of the first aspect above, the thread on the rotating shaft is 1-3 pitches longer than the thread inside the second cam structure. In this way, by setting the thread of appropriate length, the second cam structure moves evenly during the folding process, thereby improving the user's rotation feel and folding experience.
根据第一方面，或者以上第一方面的任意一种实现方式，在两个所述第一凸轮结构彼此相对的一侧上设置有彼此啮合的一组齿，使两个所述第一凸轮结构同步转动。这样设置不仅可以实现第一凸轮结构的同步转动，而且简化了结构，降低了成本。According to the first aspect, or any implementation of the first aspect above, a group of teeth meshing with each other are provided on the sides of the two first cam structures opposite to each other, so that the two first cam structures rotate synchronously. This arrangement can not only realize the synchronous rotation of the first cam structures, but also simplify the structure and reduce the cost.
根据第一方面，或者以上第一方面的任意一种实现方式，所述第一凸轮结构和所述摆臂一体形成。这样使得结构简单，降低了折叠铰链的复杂度，提高了稳定性和耐用性。According to the first aspect, or any implementation of the first aspect above, the first cam structure and the swing arm are formed in one piece, which simplifies the structure, reduces the complexity of the folding hinge, and improves stability and durability.
根据第一方面，或者以上第一方面的任意一种实现方式，所述阻尼单元还包括两个弹簧，两个所述弹簧分别套设在两个所述转轴上，所述弹簧背离所述所述第二凸轮结构的一端与所述转轴保持相对位置不变，所述弹簧的另一端抵接于所述第二凸轮结构上，所述弹簧用于在所述第二凸轮结构移动时被压缩或延展。这样可以利用弹簧产生阻尼，提高用户的折叠手感和体验，并且通过弹簧可以在展开过程使第二凸轮结构复位。According to the first aspect, or any implementation of the first aspect above, the damping unit further includes two springs, the two springs are respectively sleeved on the two rotating shafts, one end of the spring away from the second cam structure maintains a constant relative position with the rotating shaft, and the other end of the spring abuts against the second cam structure, and the spring is used to be compressed or extended when the second cam structure moves. In this way, the spring can be used to generate damping, improve the user's folding feel and experience, and the second cam structure can be reset during the unfolding process through the spring.
根据第一方面，或者以上第一方面的任意一种实现方式，所述阻尼单元还包括两个垫片，所述垫片上设置有两个转轴孔，两个所述转轴的两端分别穿过对应的所述转轴孔而固定在所述中梁上。这样设置使转轴固定更牢靠，且保证转轴之间的平行。According to the first aspect, or any implementation of the first aspect above, the damping unit further includes two gaskets, the gaskets are provided with two shaft holes, and the two ends of the two shafts pass through the corresponding shaft holes and are fixed to the middle beam. This arrangement makes the shafts more securely fixed and ensures parallelism between the shafts.
根据第一方面，或者以上第一方面的任意一种实现方式，在所述门板上设置有滑槽，所述摆臂在所述滑槽内相对所述门板滑动。这样设置便可实现摆臂和门板之间的滑动连接，结构简单，成本低。According to the first aspect, or any implementation of the first aspect above, a slide groove is provided on the door panel, and the swing arm slides relative to the door panel in the slide groove. This arrangement can realize a sliding connection between the swing arm and the door panel, with a simple structure and low cost.
根据第一方面，或者以上第一方面的任意一种实现方式，所在所述滑槽的两个侧壁上设置有滚动槽，在所述摆臂远离所述转轴的一端设置有通孔；According to the first aspect, or any implementation of the first aspect above, rolling grooves are provided on two side walls of the slide groove, and a through hole is provided at one end of the swing arm away from the rotating shaft;
所述阻尼单元还包括两个连接柱，两个所述连接柱分别穿过两个所述摆臂上的通孔，并且所述连接柱的两端分别位于两个所述滚动槽中的一个上，在所述门板相对所述中梁转动的过程中，所述连接柱在滚动槽内滚动。这样设置可以保证摆臂转动过程中不会从门板脱离，结构简单，由于连接柱在槽内滚动，摩擦较小。The damping unit further comprises two connecting columns, which respectively pass through the through holes on the two swing arms, and the two ends of the connecting column are respectively located on one of the two rolling grooves, and the connecting column rolls in the rolling groove during the rotation of the door panel relative to the middle beam. This arrangement can ensure that the swing arm will not separate from the door panel during the rotation process, and the structure is simple. Since the connecting column rolls in the groove, the friction is small.
第二方面，提供一种折叠铰链，包括至少一个如第一方面所述的阻尼机构，至少一个所述阻尼机构共用中梁以及中梁两侧的门板。In a second aspect, a folding hinge is provided, comprising at least one damping mechanism as described in the first aspect, wherein at least one of the damping mechanisms shares a central beam and door panels on both sides of the central beam.
根据第二方面的折叠铰链，由于采用第一方面的阻尼机构，因而类似的优点，在整个折叠过程中，第二凸轮结构均匀缓慢移动，不会发生在快到折叠状态时突然迅速闭合的情况，不仅消除了转动虚位问题，而且避免出现异响以及损伤屏幕等元件的问题。此外，由于加速度降低，使得设备的折叠过程更平滑，用户转动手感和折叠体验更好。According to the folding hinge of the second aspect, due to the use of the damping mechanism of the first aspect, similar advantages are achieved. During the entire folding process, the second cam structure moves evenly and slowly, and will not close suddenly and quickly when almost reaching the folded state. This not only eliminates the problem of rotational position, but also avoids abnormal noise and damage to components such as the screen. In addition, due to the reduced acceleration, the folding process of the device is smoother, and the user's rotation feel and folding experience are better.
第三方面，本申请提供一种电子设备，包括：第一壳体、第二壳体、位于所述第一壳体和所述第二壳体之间的如第二方面所述的折叠铰链，以及位于所述第一壳体、所述第二壳体和所述折叠铰链上的柔性显示屏，所述折叠较链的门板分别与所述第一壳体和所述第二壳体固定连接。In a third aspect, the present application provides an electronic device, comprising: a first shell, a second shell, a folding hinge as described in the second aspect located between the first shell and the second shell, and a flexible display located on the first shell, the second shell and the folding hinge, wherein the door panel of the folding hinge is fixedly connected to the first shell and the second shell, respectively.
根据第三方面，由于采用本申请第一方面的阻尼机构和第二方面的折叠铰链，因而在整个折叠过程中，不会发生在快到折叠状态时突然迅速闭合的情况，不仅消除了转动虚位问题，而且避免出现异响以及损伤屏幕等元件的问题。此外，由于加速度降低，使得设备的折叠过程更平滑，用户转动手感和折叠体验更好。According to the third aspect, due to the use of the damping mechanism of the first aspect and the folding hinge of the second aspect of the present application, during the entire folding process, the device will not suddenly close quickly when it is about to reach the folded state, which not only eliminates the problem of rotational position, but also avoids the problem of abnormal noise and damage to components such as the screen. In addition, due to the reduced acceleration, the folding process of the device is smoother, and the user's rotation feel and folding experience are better.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1是本申请实施例提供的一种电子设备处于展平状态时的结构示意图：FIG1 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application when it is in a flattened state:
图2是图1所示电子设备处于中间状态时的结构示意图：FIG. 2 is a schematic diagram of the structure of the electronic device shown in FIG. 1 when it is in an intermediate state:
图3是图1所示电子设备处于闭合状态时的结构示意图：FIG3 is a schematic diagram of the structure of the electronic device shown in FIG1 when it is in a closed state:
图4是本申请实施例提供的另一种电子设备处于中间状态时的结构示意图：FIG4 is a schematic diagram of the structure of another electronic device provided in an embodiment of the present application when it is in an intermediate state:
图5是本申请实施例提供的一种折叠铰链处于展平状态时的结构示意图；FIG5 is a schematic structural diagram of a folding hinge provided by an embodiment of the present application when it is in a flattened state;
图6是本申请实施例提供的一种折叠铰链处于展平状态时的结构示意图，其中移除了阻尼机构；FIG6 is a schematic structural diagram of a folding hinge provided by an embodiment of the present application in a flattened state, wherein the damping mechanism is removed;
图7是图6所示折叠铰链的部分分解图示；FIG7 is a partially exploded view of the folding hinge shown in FIG6;
图8是本申请实施例提供的一种阻尼机构的结构示意图；FIG8 is a schematic structural diagram of a damping mechanism provided in an embodiment of the present application;
图9是图8中所示阻尼结构的爆炸图；FIG9 is an exploded view of the damping structure shown in FIG8 ;
图10图8中所示阻尼结构另一角度的爆炸图。FIG. 10 is an exploded view of the damping structure shown in FIG. 8 from another angle.
具体实施方式DETAILED DESCRIPTION
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。The term "and/or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and/or B can mean: A exists alone, A and B exist at the same time, and B exists alone.
本申请实施例的说明书和权利要求书中的术语“第一”和“第二”等是用于区别不同的对象，而不是用于描述对象的特定顺序。例如，第一目标对象和第二目标对象等是用于区别不同的目标对象，而不是用于描述目标对象的特定顺序。The terms "first" and "second" in the description and claims of the embodiments of the present application are used to distinguish different objects rather than to describe a specific order of objects. For example, a first target object and a second target object are used to distinguish different target objects rather than to describe a specific order of target objects.
在本申请实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.
在本申请实施例的描述中，除非另有说明，“多个”的含义是指两个或两个以上。例如，多个处理单元是指两个或两个以上的处理单元；多个系统是指两个或两个以上的系统。In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more than two. For example, multiple processing units refer to two or more processing units; multiple systems refer to two or more systems.
阻尼机构为可折叠电子设备的关键部件，利用阻尼机构可实现可折叠电子设备的打开和闭合。当可折叠电子设备处于打开状态且无外力作用时，可折叠电子设备能够保持打开状态：同样，当可折叠电子设备处于闭合状态且无外力作用时，可折叠电子设备能够保持闭合状态。目前基于凹凸轮原理的阻尼机构存在凹凸轮移动不均匀，加速度较大容易产生异响，以及转动虚位问题。这是因为目前凹凸轮在转轴上为直线运动，并且在折叠过程中快达到折叠状态时，例如当折叠铰链或设备的两个壳体之间的夹角为20度以下时，折叠铰链无需外力即可自动折叠到折叠状态(此时折叠铰链或设备的两个壳体之间的夹角为0度)，在这个过程中，折叠铰链的折叠速度较快，两个壳体之间会发生轻微碰撞，这在手机等设备中很容易产生异响并且容易损伤屏幕。The damping mechanism is a key component of a foldable electronic device, and the foldable electronic device can be opened and closed by using the damping mechanism. When the foldable electronic device is in an open state and no external force is applied, the foldable electronic device can remain in an open state; similarly, when the foldable electronic device is in a closed state and no external force is applied, the foldable electronic device can remain in a closed state. At present, the damping mechanism based on the concave cam principle has uneven movement of the concave cam, large acceleration, and easy to produce abnormal noise, as well as rotation virtual position problems. This is because the concave cam currently moves in a straight line on the rotating shaft, and when the folding state is about to be reached during the folding process, for example, when the angle between the two shells of the folding hinge or the device is less than 20 degrees, the folding hinge can automatically fold to the folded state without external force (at this time, the angle between the two shells of the folding hinge or the device is 0 degrees). In this process, the folding speed of the folding hinge is relatively fast, and a slight collision occurs between the two shells, which is easy to produce abnormal noise and damage the screen in mobile phones and other devices.
本申请实施例基于以上描述，提供一种阻尼机构及折叠铰链，该阻尼机构及折叠铰链可应用于可折叠手机。阻尼机构及折叠铰链还可应用于可折叠平板电脑、可折叠游戏机、可折叠个人数字助理(personal digital assistant，PDA)等具有折叠功能的终端设备。本申请实施例对上述终端设备的具体形式不作限定。Based on the above description, the embodiment of the present application provides a damping mechanism and a folding hinge, which can be applied to a foldable mobile phone. The damping mechanism and the folding hinge can also be applied to terminal devices with folding functions such as foldable tablet computers, foldable game consoles, and foldable personal digital assistants (PDAs). The embodiment of the present application does not limit the specific form of the above terminal devices.
如图1至图3所示，电子设备100包括壳体10、折叠铰链20和柔性显示屏30。折叠铰链20能够发生形变，以使第一壳体11与第二壳体12相对折叠或相对展开。如图1所示，第一壳体11与第二壳体12能够相对展开至展平状态，以使电子设备100处于展平状态。示例性的，第一壳体11与第二壳体12处于展平状态时，两者可以大致呈180°(也允许存在少许偏差，例如165°、177°或者185°)。如图2所示，第一壳体11与第二壳体12能够相对转动(展开或折叠)至中间状态，以使电子设备100处于中间状态。如图3所示，第一壳体11与第二壳体12能够相对折叠至闭合状态，以使电子设备100处于闭合状态。示例性的，第一壳体11与第二壳体12处于闭合状态时，两者能够完全合拢至相互平行(也允许存在少许偏差)。其中，图2所示中间状态，可以为展平状态与闭合状态之间的任意状态。故而，电子设备100可以通过折叠铰链20的形变，在展平状态与闭合状态之间相互切换。As shown in FIGS. 1 to 3 , the electronic device 100 includes a housing 10, a folding hinge 20 and a flexible display screen 30. The folding hinge 20 can be deformed so that the first housing 11 and the second housing 12 can be relatively folded or relatively unfolded. As shown in FIG. 1 , the first housing 11 and the second housing 12 can be relatively unfolded to a flattened state so that the electronic device 100 is in a flattened state. Exemplarily, when the first housing 11 and the second housing 12 are in a flattened state, the two can be approximately 180° (a small deviation is also allowed, such as 165°, 177° or 185°). As shown in FIG. 2 , the first housing 11 and the second housing 12 can be relatively rotated (unfolded or folded) to an intermediate state so that the electronic device 100 is in an intermediate state. As shown in FIG. 3 , the first housing 11 and the second housing 12 can be relatively folded to a closed state so that the electronic device 100 is in a closed state. Exemplarily, when the first housing 11 and the second housing 12 are in a closed state, the two can be completely closed to be parallel to each other (a small deviation is also allowed). The intermediate state shown in FIG2 may be any state between the flattened state and the closed state. Therefore, the electronic device 100 may switch between the flattened state and the closed state by deforming the folding hinge 20 .
一些实施例中，柔性显示屏30用于显示图像。示例性的，柔性显示屏30可以为有机发光二极管(organic light emitting diode,OLED)显示屏，有源矩阵有机发光二极体或主动矩阵有机发光二极体(active matrix organic light emitting diode，AMOLED)显示屏，迷你发光二极管(mini organic light emitting diode)显示屏，微型发光二极管(micro organic light-emitting diode)显示屏，微型有机发光二极管(microorganiclight-emi ttingdiode)显示屏，量子点发光二极管(quantum dot lightemittingdiodes,QLED)显示屏。In some embodiments, the flexible display screen 30 is used to display images. Exemplarily, the flexible display screen 30 can be an organic light emitting diode (OLED) display screen, an active matrix organic light emitting diode or an active matrix organic light emitting diode (AMOLED) display screen, a mini organic light emitting diode (MILLED) display screen, a micro organic light-emitting diode (MIL-E) display screen, a micro organic light-emitting diode (MIL-E) display screen, or a quantum dot light-emitting diode (QLED) display screen.
柔性显示屏30包括依次排列的第一非折弯部31、折弯部32以及第二非折弯部33。柔性显示屏30固定于壳体10。例如，柔性显示屏30可以通过胶层粘接于壳体10。柔性显示屏30的第一非折弯部31固定于第一壳体11，第二非折弯部33固定于第二壳体12，在第一壳体11与第二壳体12相对折叠或相对展开的过程中，折弯部32发生形变。如图1所示，第一壳体11与第二壳体12处于展平状态时，柔性显示屏30处于展平形态：如图2所示，第一壳体11与第二壳体12处于中间状态时，柔性显示屏30处于展平形态与闭合形态之间的中间形态：如图3所示，第一壳体11与第二壳体12处于闭合状态时，柔性显示屏30处于闭合形态。其中，电子设备100处于闭合状态时，柔性显示屏30位于壳体10的外侧，柔性显示屏30可以大致呈U型。The flexible display screen 30 includes a first non-bending portion 31, a bending portion 32, and a second non-bending portion 33 arranged in sequence. The flexible display screen 30 is fixed to the housing 10. For example, the flexible display screen 30 can be bonded to the housing 10 by an adhesive layer. The first non-bending portion 31 of the flexible display screen 30 is fixed to the first housing 11, and the second non-bending portion 33 is fixed to the second housing 12. During the relative folding or relative unfolding of the first housing 11 and the second housing 12, the bending portion 32 is deformed. As shown in FIG1, when the first housing 11 and the second housing 12 are in a flattened state, the flexible display screen 30 is in a flattened state; as shown in FIG2, when the first housing 11 and the second housing 12 are in an intermediate state, the flexible display screen 30 is in an intermediate state between the flattened state and the closed state; as shown in FIG3, when the first housing 11 and the second housing 12 are in a closed state, the flexible display screen 30 is in a closed state. Among them, when the electronic device 100 is in a closed state, the flexible display screen 30 is located outside the housing 10, and the flexible display screen 30 can be roughly U-shaped.
在本实施例中，柔性显示屏30能够随折叠铰链20展开或折叠。当电子设备100处于展平状态时，柔性显示屏30处于展平形态，能够全屏进行显示，使得电子设备100具有较大的显示面积，以提高用户的观看体验。当电子设备100处于闭合状态时，电子设备100的平面尺寸较小(具有较小的宽度尺寸)，便于用户携带和收纳。In this embodiment, the flexible display screen 30 can be unfolded or folded along with the folding hinge 20. When the electronic device 100 is in a flat state, the flexible display screen 30 is in a flat state and can display in full screen, so that the electronic device 100 has a larger display area to improve the user's viewing experience. When the electronic device 100 is in a closed state, the plane size of the electronic device 100 is small (with a small width dimension), which is convenient for users to carry and store.
如图4所示，电子设备100包括壳体10、折叠铰链20和柔性屏30。柔性屏30固定在壳体10的一侧表面。电子设备100可沿其中心进行折叠，当可折叠手机处于折叠态时，即，可折叠手机的折叠角度为0，可以减小可折叠手机的尺寸；当可折叠手机处于展平态时，即，可折叠手机的折叠角度为180°，柔性屏30处于最大显示面积的状态，此时用户可以在柔性屏30上进行操作。需要说明的是，折叠角度指的是可折叠手机的左右两部分之间的夹角。与图1至图3所示的电子设备的不同之处在于，图4中电子设备100处于闭合状态时，柔性显示屏30位于壳体10的内侧。As shown in FIG4 , the electronic device 100 includes a housing 10, a folding hinge 20 and a flexible screen 30. The flexible screen 30 is fixed to a side surface of the housing 10. The electronic device 100 can be folded along its center. When the foldable mobile phone is in a folded state, that is, the folding angle of the foldable mobile phone is 0, the size of the foldable mobile phone can be reduced; when the foldable mobile phone is in a flattened state, that is, the folding angle of the foldable mobile phone is 180°, the flexible screen 30 is in a state of maximum display area, and the user can operate on the flexible screen 30. It should be noted that the folding angle refers to the angle between the left and right parts of the foldable mobile phone. The difference from the electronic device shown in FIGS. 1 to 3 is that when the electronic device 100 in FIG4 is in a closed state, the flexible display screen 30 is located on the inner side of the housing 10.
为了便于对本申请实施例的技术方案进行清楚的描述，如图4所示，可定义三个方向，分别为可折叠手机的长度方向(X方向，也称第一方向)，可折叠手机的宽度方向(Y方向，也称第二方向)和可折叠手机的厚度方向(Z方向，也称第三方向)。In order to facilitate a clear description of the technical solution of the embodiment of the present application, as shown in Figure 4, three directions can be defined, namely the length direction of the foldable mobile phone (X direction, also called the first direction), the width direction of the foldable mobile phone (Y direction, also called the second direction) and the thickness direction of the foldable mobile phone (Z direction, also called the third direction).
此外，在本申请实施例中，“上”、“下”、“左”和“右”指的是可折叠手机处于展平态，当用户双手握持可折叠手机且柔性屏30朝向用户时，以用户手部作为参照而确定的方位。In addition, in the embodiments of the present application, "up", "down", "left" and "right" refer to the positions determined with reference to the user's hands when the foldable mobile phone is in a flattened state and the user holds the foldable mobile phone with both hands and the flexible screen 30 is facing the user.
可以理解的是，本实施例是以“电子设备100的转动中心平行于电子设备100的长度方向”为例进行说明的，此时，电子设备100能够实现左右转动，电子设备100的折叠与展开影响到电子设备100的宽度尺寸。在其他一些实施例中，电子设备100的转动中心也可以平行于电子设备100的宽度方向，此时，电子设备100能够实现上下转动，电子设备100的折叠与展开影响到电子设备100的长度尺寸。It is understandable that this embodiment is described by taking "the rotation center of the electronic device 100 is parallel to the length direction of the electronic device 100" as an example. In this case, the electronic device 100 can rotate left and right, and the folding and unfolding of the electronic device 100 affects the width dimension of the electronic device 100. In some other embodiments, the rotation center of the electronic device 100 may also be parallel to the width direction of the electronic device 100. In this case, the electronic device 100 can rotate up and down, and the folding and unfolding of the electronic device 100 affects the length dimension of the electronic device 100.
图5是本申请实施例提供的一种折叠铰链的结构示意图。如图5所示，在本申请一实施例中折叠铰链20包括转轴组件和设置在该转轴组件上的阻尼单元40，该转轴组件包括第一门板21、第二门板22以及位于第一门板21和第二门板22之间的中梁23。在本申请一个实施例中，第一门板21和第二门板22与中梁23转动连接。当第一门板21和第二门板22相对中梁23转动时，可以实现电子设备100的展开或折叠，且在第一门板21和第二门板22相对中梁23转动的过程中，阻尼单元40产生阻尼，为用户提供阻尼体验，提高用户使用电子设备100的阻尼感。第一门板21和第二门板22与中梁23之间的转动连接方式可以采用本领域常用的各种结构，在此不做赘述。FIG5 is a schematic diagram of the structure of a folding hinge provided in an embodiment of the present application. As shown in FIG5, in an embodiment of the present application, the folding hinge 20 includes a shaft assembly and a damping unit 40 disposed on the shaft assembly, and the shaft assembly includes a first door panel 21, a second door panel 22, and a center beam 23 located between the first door panel 21 and the second door panel 22. In an embodiment of the present application, the first door panel 21 and the second door panel 22 are rotatably connected to the center beam 23. When the first door panel 21 and the second door panel 22 rotate relative to the center beam 23, the electronic device 100 can be unfolded or folded, and in the process of the first door panel 21 and the second door panel 22 rotating relative to the center beam 23, the damping unit 40 generates damping, providing a damping experience for the user, and improving the damping sense of the user when using the electronic device 100. The rotation connection between the first door panel 21 and the second door panel 22 and the center beam 23 can adopt various structures commonly used in the art, which will not be described here.
在本申请实施例中，折叠铰链20包括一个阻尼单元40，该阻尼单元40沿中梁23的旋转轴的轴向(也即电子设备100的长度方向或X方向)，设置在旋转轴中间位置处。应当理解的是，阻尼单元40的设置数量并不限于一个，可以设置为两个、三个或更多个等，具体可根据柔性显示屏30的尺寸以及所需要的阻尼力进行设置。In the embodiment of the present application, the folding hinge 20 includes a damping unit 40, which is arranged at the middle position of the rotation axis along the axial direction of the rotation axis of the middle beam 23 (that is, the length direction or X direction of the electronic device 100). It should be understood that the number of damping units 40 is not limited to one, and can be set to two, three or more, etc., which can be specifically set according to the size of the flexible display screen 30 and the required damping force.
请再次参阅图1至图3，折叠绞链20位于第一壳体11和第二壳体12之间，该折叠较链20能够使第一壳体11相对于第二壳体12产生靠近或远离第二壳体12的翻转运动。柔性显示屏30装配在第一壳体11、第二壳体12和折叠较链20的表面，并根据折叠较链20的转动随第一壳体11和第二壳体12产生翻转运动。Please refer to Figures 1 to 3 again. The folding hinge 20 is located between the first shell 11 and the second shell 12. The folding hinge 20 can make the first shell 11 flip relative to the second shell 12 to move closer to or away from the second shell 12. The flexible display screen 30 is mounted on the surfaces of the first shell 11, the second shell 12 and the folding hinge 20, and flips along with the first shell 11 and the second shell 12 according to the rotation of the folding hinge 20.
应当理解的是，在该电子设备100中，第一门板21与第一壳体11固定连接，第二门板22与第二壳体12固定连接。当翻转第一壳体11时，第一壳体11带动第一门板21运动，第一门板21绕中梁23运动，同理，在翻转第二壳体12时，第二壳体12带动第二门板22运动，第二门板22绕中梁23运动，从而实现第一壳体11与第二壳体12的相对转动。同理，在转动时可同时朝相反方向翻动第一壳体11和第二壳体12，以实现第一壳体11和第二壳体12的分离或闭合。It should be understood that in the electronic device 100, the first door panel 21 is fixedly connected to the first housing 11, and the second door panel 22 is fixedly connected to the second housing 12. When the first housing 11 is turned over, the first housing 11 drives the first door panel 21 to move, and the first door panel 21 moves around the middle beam 23. Similarly, when the second housing 12 is turned over, the second housing 12 drives the second door panel 22 to move, and the second door panel 22 moves around the middle beam 23, thereby realizing the relative rotation of the first housing 11 and the second housing 12. Similarly, during the rotation, the first housing 11 and the second housing 12 can be flipped in opposite directions at the same time to realize the separation or closing of the first housing 11 and the second housing 12.
在使用电子设备100时，当电子设备100处于展平状态，即，第一壳体11与第二壳体12处于展平状态时，阻尼单元40提供一定阻尼力，该阻尼力可以阻止折叠铰链20铰链被折叠，从而保持第一壳体11和第二壳体12的相对位置不变。当电子设备100处于闭合状态，即，第一壳体11与第二壳体12处于闭合状态时，阻尼单元40提供一定阻尼力，该阻尼力可以使折叠铰链保持折叠状态，从而保持第一壳体11和第二壳体12的相对位置不变。When the electronic device 100 is in use, when the electronic device 100 is in a flattened state, that is, when the first housing 11 and the second housing 12 are in a flattened state, the damping unit 40 provides a certain damping force, which can prevent the folding hinge 20 from being folded, thereby maintaining the relative position of the first housing 11 and the second housing 12 unchanged. When the electronic device 100 is in a closed state, that is, when the first housing 11 and the second housing 12 are in a closed state, the damping unit 40 provides a certain damping force, which can keep the folding hinge in a folded state, thereby maintaining the relative position of the first housing 11 and the second housing 12 unchanged.
下面结合图5至图10对本申请一实施例提供的阻尼机构的结构和原理进行说明。The structure and principle of the damping mechanism provided in one embodiment of the present application are described below in conjunction with FIGS. 5 to 10 .
如图5至图10所示，本申请实施例提供的阻尼单元40包括两个转轴41、两个第一凸轮结构42、两个第二凸轮结构43、两个摆臂44、两个弹簧(未示出)、两个连接柱45和两个垫片46。其中，两个转轴41固定在中梁23上，且两个转轴41沿X向设置并相互平行。As shown in FIGS. 5 to 10 , the damping unit 40 provided in the embodiment of the present application includes two rotating shafts 41, two first cam structures 42, two second cam structures 43, two swing arms 44, two springs (not shown), two connecting columns 45 and two gaskets 46. The two rotating shafts 41 are fixed on the middle beam 23, and the two rotating shafts 41 are arranged along the X direction and are parallel to each other.
如图5至图7所示，在中梁23上设置有4个转轴孔24，转轴孔24沿Y方向的剖面为半圆形。相对的两个转轴孔24之间的距离与转轴41的长度一致。相邻的两个转轴孔41之间的距离与两个第一凸轮结构42的尺寸一致。当将转轴41安装在转轴孔24中，通过固定板25和紧固件进行限位，从而将转轴41固定在中梁23上。转轴41在Y方向上的截面可以为圆形，椭圆形等各种合适形状，在此不做限定。As shown in FIGS. 5 to 7 , four shaft holes 24 are provided on the middle beam 23, and the cross section of the shaft hole 24 along the Y direction is semicircular. The distance between two opposite shaft holes 24 is consistent with the length of the shaft 41. The distance between two adjacent shaft holes 41 is consistent with the size of the two first cam structures 42. When the shaft 41 is installed in the shaft hole 24, the fixing plate 25 and the fastener are used to limit the position, so that the shaft 41 is fixed on the middle beam 23. The cross section of the shaft 41 in the Y direction can be various suitable shapes such as circular and elliptical, which are not limited here.
如图5和图8所示，两个第一凸轮结构42分别连接在两个转轴41上，例如，其中一个第一凸轮结构42连接在一个转轴41上、另一个第一凸轮结构42连接在另一个转轴41上，且两个第一凸轮结构42在转轴41上的连接位置相对应。As shown in Figures 5 and 8, the two first cam structures 42 are respectively connected to the two rotating shafts 41. For example, one of the first cam structures 42 is connected to one rotating shaft 41, and the other first cam structure 42 is connected to the other rotating shaft 41, and the connection positions of the two first cam structures 42 on the rotating shaft 41 correspond.
如图8至图10所示，第一凸轮结构42安装在转轴41的外表面上，第一凸轮结构42可相对转轴41转动，也即绕转轴41转动。第一凸轮结构42为两端具有开口的中空结构，转轴41穿过该第一凸轮结构42内的通孔，从而使得第一凸轮结构41安装在转轴41的外表面上。换言之，第一凸轮结构42套设在转轴41上。As shown in FIGS. 8 to 10 , the first cam structure 42 is mounted on the outer surface of the rotating shaft 41, and the first cam structure 42 can rotate relative to the rotating shaft 41, that is, rotate around the rotating shaft 41. The first cam structure 42 is a hollow structure with openings at both ends, and the rotating shaft 41 passes through the through hole in the first cam structure 42, so that the first cam structure 41 is mounted on the outer surface of the rotating shaft 41. In other words, the first cam structure 42 is sleeved on the rotating shaft 41.
如图10所示，第一凸轮结构42的第一端面421形成有第一凹陷部422，第一凹陷部422可以为两个，两个第一凹陷部422沿第一凸轮结构42的圆周均匀设置。在本申请的其他实施例中，第一凹陷部422的数量可以为一个、两个、三个、四个或更多个，本申请实施例对此不限定。As shown in FIG10 , the first end surface 421 of the first cam structure 42 is formed with a first recessed portion 422, and there may be two first recessed portions 422, which are evenly arranged along the circumference of the first cam structure 42. In other embodiments of the present application, the number of the first recessed portions 422 may be one, two, three, four or more, which is not limited in the embodiments of the present application.
如图10所示，第一凹陷部422具有第一侧面423和与第一侧面423相对的第二侧面424，第一侧面423和第二侧面424均为倾斜面。第一凹陷部422的底部小顶部大。As shown in Fig. 10, the first recessed portion 422 has a first side surface 423 and a second side surface 424 opposite to the first side surface 423, and both the first side surface 423 and the second side surface 424 are inclined surfaces. The first recessed portion 422 has a small bottom and a large top.
如图5和图8所示，在两个第一凸轮结构42相对的一侧表面上设置有一组齿420，两个第一凸轮结构42上的齿420可以相互啮合。通过在两个第一凸轮结构42相对的一侧表面上设置可以相互啮合的齿420，使得两个第一凸轮结构42同步转动。换言之，在本申请实施例中，将同步齿轮和第一凸轮结构42集成在一起或一体形成。As shown in FIG. 5 and FIG. 8 , a group of teeth 420 are provided on the surfaces of one side opposite to the two first cam structures 42, and the teeth 420 on the two first cam structures 42 can mesh with each other. By providing the teeth 420 that can mesh with each other on the surfaces of one side opposite to the two first cam structures 42, the two first cam structures 42 rotate synchronously. In other words, in the embodiment of the present application, the synchronous gear and the first cam structure 42 are integrated or formed as one piece.
如图5和图8所示，两个第二凸轮结构43分别套设在两个转轴41相对应的位置上，且两个第二凸轮结构43可沿转轴41的轴向螺旋转动。两个第二凸轮结构43中，其中一个第二凸轮结构43套设在一个转轴41上，另一个第二凸轮结构43套设在另一个转轴41上。As shown in Fig. 5 and Fig. 8, the two second cam structures 43 are respectively sleeved on the corresponding positions of the two rotating shafts 41, and the two second cam structures 43 can be spirally rotated along the axial direction of the rotating shaft 41. Among the two second cam structures 43, one second cam structure 43 is sleeved on one rotating shaft 41, and the other second cam structure 43 is sleeved on the other rotating shaft 41.
如图5至图10所示，在转轴41上设置有螺纹410，螺纹410的位置与第二凸轮结构43的位置相对应。第二凸轮结构43可以在第一凸轮结构42的作用下沿转轴41的螺纹410螺旋运动。As shown in FIGS. 5 to 10 , a thread 410 is provided on the rotating shaft 41 , and the position of the thread 410 corresponds to the position of the second cam structure 43 . The second cam structure 43 can move helically along the thread 410 of the rotating shaft 41 under the action of the first cam structure 42 .
应当理解的是，在第二凸轮结构43内部形成有与螺纹410相匹配的螺纹。螺纹410的长度大于第二凸轮结构43的长度。这里的第二凸轮结构43的长度指的是第二凸轮结构内部通孔的长度或者是第二凸轮结构43的凹陷部底面到另一端面的距离。It should be understood that a thread matching the thread 410 is formed inside the second cam structure 43. The length of the thread 410 is greater than the length of the second cam structure 43. The length of the second cam structure 43 here refers to the length of the through hole inside the second cam structure or the distance from the bottom surface of the recessed portion of the second cam structure 43 to the other end surface.
应当理解的是，螺纹410的长度基于折叠过程中第二凸轮结构在转轴41上的行程确定，示例性地，例如螺纹410比第二凸轮结构43内部的螺纹长1-3个螺距，例如螺纹410比第二凸轮结构43内部的螺纹长1.5或2个螺距。这里的螺距指的是的螺纹410或第二凸轮结构43内部螺纹的螺距。螺纹410的长度保证第二凸轮结构在折叠过程中，第二凸轮结构43始终处于螺旋移动即可。It should be understood that the length of the thread 410 is determined based on the stroke of the second cam structure on the rotating shaft 41 during the folding process. For example, the thread 410 is 1-3 pitches longer than the thread inside the second cam structure 43, for example, the thread 410 is 1.5 or 2 pitches longer than the thread inside the second cam structure 43. The pitch here refers to the pitch of the thread 410 or the thread inside the second cam structure 43. The length of the thread 410 ensures that the second cam structure 43 is always in spiral movement during the folding process.
如图9和图10所示，第二凸轮结构43为两端具有开口的中空结构，第二凸轮结构43上具有第二端面431，在第二端面431上形成有两个第二凹陷部432。如图9和图10所示，第二端面431朝向第一凹陷部422。在本申请的其他实施例中，第二凹陷部432的数量可以为一个、三个、四个或更多个，本申请实施例对此不限定。As shown in FIGS. 9 and 10, the second cam structure 43 is a hollow structure with openings at both ends, and the second cam structure 43 has a second end surface 431, and two second recessed portions 432 are formed on the second end surface 431. As shown in FIGS. 9 and 10, the second end surface 431 faces the first recessed portion 422. In other embodiments of the present application, the number of the second recessed portions 432 may be one, three, four or more, which is not limited in the embodiments of the present application.
如图9所示，第二凹陷部432上具有第三侧面433和与第三侧面433相对的第四侧面434，第三侧面433和第四侧面434均为倾斜面，第二凹陷部432为呈底部小顶部大的形状。As shown in FIG. 9 , the second recessed portion 432 has a third side surface 433 and a fourth side surface 434 opposite to the third side surface 433 . The third side surface 433 and the fourth side surface 434 are both inclined surfaces. The second recessed portion 432 is shaped like a small bottom and a large top.
如图5至图10所示，第三侧面433与第一侧面423相适配，且相抵接。第三侧面433与第一侧面423相适配可以指，第三侧面433与第一侧面423表面形状相同，示例性的，第三侧面433与第一侧面423均为平面，或者，第三侧面433与第一侧面423均为曲面，由于第一凸轮结构42可以转轴41为中心转动，第二凸轮结构43可沿转轴42的轴向螺旋移动，因此，当第三侧面433与第一侧面423均为曲面时，能够使得第一凸轮结构42转动至任一个位置，第三侧面433尽可能与第一侧面423相抵接。As shown in Figures 5 to 10, the third side surface 433 is adapted to and abuts against the first side surface 423. The third side surface 433 is adapted to the first side surface 423, which means that the third side surface 433 and the first side surface 423 have the same surface shape. For example, the third side surface 433 and the first side surface 423 are both planes, or the third side surface 433 and the first side surface 423 are both curved surfaces. Since the first cam structure 42 can rotate around the rotating shaft 41, and the second cam structure 43 can move along the axial spiral of the rotating shaft 42, when the third side surface 433 and the first side surface 423 are both curved surfaces, the first cam structure 42 can be rotated to any position, and the third side surface 433 can abut against the first side surface 423 as much as possible.
如图8至图10所示，在本申请实施例中，摆臂44与第一凸轮结构42一体成型。摆臂44大致呈L型。摆臂44包括主体部和与主体部连接的端部441。摆臂44的端部441的厚度大于摆臂44主体部的厚度。在摆臂44的端部441的外侧位置设置沿X方向贯穿摆臂44端部441的通孔。连接柱45可以穿过该通孔从而与门板形成滑动连接。As shown in FIGS. 8 to 10 , in the embodiment of the present application, the swing arm 44 is integrally formed with the first cam structure 42. The swing arm 44 is generally L-shaped. The swing arm 44 includes a main body and an end 441 connected to the main body. The thickness of the end 441 of the swing arm 44 is greater than the thickness of the main body of the swing arm 44. A through hole is provided at the outer side of the end 441 of the swing arm 44, which penetrates the end 441 of the swing arm 44 along the X direction. The connecting column 45 can pass through the through hole to form a sliding connection with the door panel.
如图5至图7所示，在第一门板21和第二门板22上设置有滑槽26，摆臂44安装在滑槽26中，并且与转轴41转动连接。随着第一门板21和和第二门板22相对中梁23转动，摆臂44相对转轴41转动，并且在摆臂44相对转轴41转过的过程中，摆臂44在滑槽26内相对第一门板21或第二门板22滑动。换言之，两个摆臂44随着第一门板21和第二门板22的相互靠近而相互靠近，随着第一门板21和第二门板22的相互远离而相互远离。As shown in FIGS. 5 to 7 , a slide groove 26 is provided on the first door panel 21 and the second door panel 22, and a swing arm 44 is installed in the slide groove 26 and is rotatably connected to the rotating shaft 41. As the first door panel 21 and the second door panel 22 rotate relative to the center beam 23, the swing arm 44 rotates relative to the rotating shaft 41, and during the process of the swing arm 44 rotating relative to the rotating shaft 41, the swing arm 44 slides relative to the first door panel 21 or the second door panel 22 in the slide groove 26. In other words, the two swing arms 44 approach each other as the first door panel 21 and the second door panel 22 approach each other, and move away from each other as the first door panel 21 and the second door panel 22 move away from each other.
如图5至图7所示，滑槽26在X方向的剖面大致呈十字形。换言之，滑槽26包括主槽和设置在主槽侧壁上的侧槽。连接柱35穿过摆臂44的端部441中的通孔，并且两端分别安装在滑槽26的侧槽上。连接柱45为圆柱形，因此连接柱45可以在侧槽中滚动。通过连接45一方面使得摆臂44与门板之间形成滑动连接，另一方面可以防止折叠过程中摆臂44与门板脱离。As shown in FIGS. 5 to 7 , the cross section of the slide 26 in the X direction is roughly cross-shaped. In other words, the slide 26 includes a main groove and a side groove arranged on the side wall of the main groove. The connecting column 35 passes through the through hole in the end 441 of the swing arm 44, and the two ends are respectively installed on the side grooves of the slide 26. The connecting column 45 is cylindrical, so the connecting column 45 can roll in the side groove. The connection 45 can form a sliding connection between the swing arm 44 and the door panel on the one hand, and prevent the swing arm 44 from being separated from the door panel during the folding process on the other hand.
应当理解的是，虽然在本申请实施例中，摆臂44和第一凸轮结构42一体形成，但是在本申请其它实施例中，摆臂44和第一凸轮结构42也可以单独形成，然后通过连接件或连接结构进行连接。It should be understood that, although in the embodiment of the present application, the swing arm 44 and the first cam structure 42 are formed integrally, in other embodiments of the present application, the swing arm 44 and the first cam structure 42 may also be formed separately and then connected by a connecting member or a connecting structure.
如图5至图10所示，在本申请实施例中，阻尼单元40包括两个垫片46，垫片46设置在转轴41与中梁23之间。具体地，在垫片46上设置有两个转轴孔460，转轴孔460的尺寸和形状分别与转轴41的尺寸和形状相匹配。这里的相匹配指的是转轴41的截面形状为圆形时，转轴孔460的形状也为圆形。转轴41的截面形状为椭圆形时，转轴孔460的形状也为椭圆形。并且转轴孔460的截面尺寸仅略大于转轴41截的截面尺寸。例如转轴41为圆柱形，其截面的直径为D1，则转轴孔460的直径略大于D1。As shown in FIGS. 5 to 10 , in the embodiment of the present application, the damping unit 40 includes two gaskets 46, and the gaskets 46 are arranged between the rotating shaft 41 and the middle beam 23. Specifically, two rotating shaft holes 460 are arranged on the gasket 46, and the size and shape of the rotating shaft holes 460 match the size and shape of the rotating shaft 41 respectively. The matching here means that when the cross-sectional shape of the rotating shaft 41 is circular, the shape of the rotating shaft hole 460 is also circular. When the cross-sectional shape of the rotating shaft 41 is elliptical, the shape of the rotating shaft hole 460 is also elliptical. And the cross-sectional size of the rotating shaft hole 460 is only slightly larger than the cross-sectional size of the rotating shaft 41. For example, if the rotating shaft 41 is cylindrical and the diameter of its cross section is D1, the diameter of the rotating shaft hole 460 is slightly larger than D1.
在本申请实施例中，两个垫片46分别安装于转轴41的两端，其中一个垫片46位于第一凸轮结构42和中梁23之间，另一个位于第二凸轮结构43和中梁23之间。转轴41的端部穿过垫片46上的转轴孔460后安装在中梁23上的转轴孔24上。通过垫片46可以辅助安装和固定转轴41。In the embodiment of the present application, two washers 46 are respectively installed at both ends of the rotating shaft 41, one of the washers 46 is located between the first cam structure 42 and the middle beam 23, and the other is located between the second cam structure 43 and the middle beam 23. The end of the rotating shaft 41 passes through the rotating shaft hole 460 on the washers 46 and is installed on the rotating shaft hole 24 on the middle beam 23. The washers 46 can assist in installing and fixing the rotating shaft 41.
如前所述，在本申请实施例中，阻尼单元40还包括两个弹簧(图未示)。两个弹簧分别安装在两个转轴41上。应当理解的是，两个弹簧中的一个弹簧套设在其中一个转轴41上，且位于第二凸轮结构43远离第一凸轮结构42的一端，另一个弹簧套设在另一个转轴41上，且位于另一个第二凸轮结构43远离第一凸轮结构42的一端。两个弹簧中的每个弹簧的第一端均与第二凸轮结构43接触，第二端均与垫片46相接触。As mentioned above, in the embodiment of the present application, the damping unit 40 further includes two springs (not shown). The two springs are respectively mounted on the two rotating shafts 41. It should be understood that one of the two springs is sleeved on one of the rotating shafts 41 and is located at one end of the second cam structure 43 away from the first cam structure 42, and the other spring is sleeved on the other rotating shaft 41 and is located at one end of the other second cam structure 43 away from the first cam structure 42. The first end of each of the two springs is in contact with the second cam structure 43, and the second end is in contact with the gasket 46.
如图5和图8所示，在本申请实施例中，当两个相对的第一凸轮结构42之间的夹角(即两个摆臂44之间的夹角)为180度时，可折叠智能手机的折叠角度(即两个门板之间的夹角或两个壳体之间的夹角)为180度，此时第二凸轮结构43与弹簧的第一端相接触。当在折叠铰链20上施加作用力，使得两个第一凸轮结构42相对转轴41转动(此时定义为顺时针转动)时，第一凸轮结构42的第一侧面423将对第二凸轮结构43的第三侧面433产生挤压力，由于第二凸轮结构43可沿转轴41上的螺纹410轴向螺旋移动，因此第二凸轮结构43将在挤压力的作用下产生位移，即，朝向远离与其抵接的第一凹陷部422的方向运动，挤压弹簧。弹簧在受到压力后，产生压缩变形，向第二凸轮结构43施加弹力。在对可折叠智能手机进行折叠的过程中，第二凸轮结构43始终承受两个作用力，其一为第一凸轮结构42施加的挤压力，另一个为弹簧施加的弹力，这两个作用力方向相反，因此，能够达到平衡，在将可折叠智能手机进行折叠至某个角度停止后，达到平衡的两个作用力能够保证可折叠智能手机悬停至该角度，即，阻尼单元40能够提供阻尼力，使得可折叠智能手机保持在该角度。并且通过旋转合适的弹簧，可以获得需要的阻尼力。As shown in FIG. 5 and FIG. 8 , in the embodiment of the present application, when the angle between the two opposite first cam structures 42 (i.e., the angle between the two swing arms 44) is 180 degrees, the folding angle of the foldable smartphone (i.e., the angle between the two door panels or the angle between the two housings) is 180 degrees, and the second cam structure 43 is in contact with the first end of the spring. When a force is applied to the folding hinge 20, so that the two first cam structures 42 rotate relative to the rotating shaft 41 (defined as clockwise rotation at this time), the first side surface 423 of the first cam structure 42 will generate a squeezing force on the third side surface 433 of the second cam structure 43. Since the second cam structure 43 can move axially along the thread 410 on the rotating shaft 41, the second cam structure 43 will be displaced under the action of the squeezing force, that is, move in a direction away from the first recessed portion 422 abutting against it, squeezing the spring. After being subjected to pressure, the spring is compressed and deformed, and an elastic force is applied to the second cam structure 43. During the folding process of the foldable smartphone, the second cam structure 43 is always subjected to two forces, one of which is the squeezing force applied by the first cam structure 42, and the other is the elastic force applied by the spring. The two forces are in opposite directions, so they can reach a balance. After the foldable smartphone is folded to a certain angle and stopped, the two balanced forces can ensure that the foldable smartphone is suspended at the angle, that is, the damping unit 40 can provide a damping force to keep the foldable smartphone at the angle. And by rotating the appropriate spring, the required damping force can be obtained.
进一步地，在本申请实施例中，由于在第二凸轮结构43和转轴41上设置螺纹，第二凸轮结构43相对转轴41进行螺纹移动，因此在折叠过程中，第二凸轮结构43的移动相对没有螺纹时直接在转轴41上滑动变得更缓慢，这使得第二凸轮结构和弹簧受力更均匀，第二凸轮结构43的移动更均匀，并且加速度降低，使得设备的折叠过程更平滑，用户转动手感和折叠体验更好。此外，由于螺纹配合第二凸轮结构的加速度较小，这使得阻尼结构40克服了凹凸轮带来的异响问题，并且消除了转动的虚位问题。Furthermore, in the embodiment of the present application, since threads are provided on the second cam structure 43 and the rotating shaft 41, the second cam structure 43 moves with threads relative to the rotating shaft 41. Therefore, during the folding process, the movement of the second cam structure 43 becomes slower than sliding directly on the rotating shaft 41 when there is no thread. This makes the force on the second cam structure and the spring more uniform, the movement of the second cam structure 43 more uniform, and the acceleration is reduced, making the folding process of the device smoother, and the user's rotation feel and folding experience better. In addition, since the acceleration of the threaded second cam structure is small, the damping structure 40 overcomes the abnormal noise problem caused by the concave cam and eliminates the virtual position problem of rotation.
需要说明的是，折叠设备或折叠铰链20的展开过程与前述过程相反，在本申请实施例中，当两个相对的第一凸轮结构42之间的夹角(即两个摆臂44之间的夹角)为0度时，可折叠智能手机的折叠角度(即两个门板之间的夹角或两个壳体之间的夹角)为0度，此时第二凸轮结构43与弹簧之间的挤压达到最大。当在折叠铰链20上施加作用力，使得两个第一凸轮结构42相对转轴41逆时针转动时，第一凸轮结构42的第一侧面423与第二凸轮结构43的第三侧面433之间的挤压力逐渐减小，第二凸轮结构43在弹簧的作用下可沿转轴41上的螺纹410轴向螺旋移动，即第二凸轮结构43将在弹簧弹力的作用下产生位移，即，朝向靠近与其抵接的第一凹陷部422的方向运动，在该过程中弹簧受到的压力逐渐变小，压缩变形逐渐恢复。在对可折叠智能手机进行展开的过程中，第二凸轮结构43始终承受两个作用力，其一为第一凸轮结构42施加的挤压力，另一个为弹簧施加的弹力，这两个作用力方向相反，因此，能够达到平衡，在将可折叠智能手机进行折叠至某个角度停止后，达到平衡的两个作用力能够保证可折叠智能手机悬停至该角度。当第一凸轮结构42恢复到图5所示的初始位置时，第二凸轮结构43也恢复到图5所示的初始位置。It should be noted that the unfolding process of the folding device or the folding hinge 20 is opposite to the above process. In the embodiment of the present application, when the angle between the two opposite first cam structures 42 (i.e., the angle between the two swing arms 44) is 0 degrees, the folding angle of the foldable smartphone (i.e., the angle between the two door panels or the angle between the two shells) is 0 degrees, and the extrusion between the second cam structure 43 and the spring reaches the maximum. When a force is applied to the folding hinge 20, so that the two first cam structures 42 rotate counterclockwise relative to the rotating shaft 41, the extrusion force between the first side surface 423 of the first cam structure 42 and the third side surface 433 of the second cam structure 43 gradually decreases, and the second cam structure 43 can move along the axial spiral of the thread 410 on the rotating shaft 41 under the action of the spring, that is, the second cam structure 43 will be displaced under the action of the spring elastic force, that is, move in the direction close to the first recessed portion 422 abutting against it, and the pressure on the spring gradually decreases during this process, and the compression deformation gradually recovers. During the unfolding of the foldable smartphone, the second cam structure 43 is always subjected to two forces, one of which is the squeezing force applied by the first cam structure 42, and the other is the elastic force applied by the spring. The two forces are in opposite directions, so they can achieve balance. After the foldable smartphone is folded to a certain angle and stopped, the two balanced forces can ensure that the foldable smartphone hovers at the angle. When the first cam structure 42 returns to the initial position shown in FIG. 5 , the second cam structure 43 also returns to the initial position shown in FIG. 5 .
综上可知，在本实施例中，通过第一凸轮结构42与第二凸轮结构43以及弹簧之间的相互作用即可实现折叠铰链20的阻尼作用，结构简单，成本较低。In summary, it can be seen that in this embodiment, the damping effect of the folding hinge 20 can be achieved through the interaction between the first cam structure 42, the second cam structure 43 and the spring, and the structure is simple and the cost is low.
应当理解的是，本申请实施例提供的阻尼单元40和折叠铰链20既可以应用于图1至图3所示的外折电子设备，也可以应用于图4所示的内折电子设备，或者其它实施例提供的上下翻折电子设备或其它类型的折叠设备。It should be understood that the damping unit 40 and the folding hinge 20 provided in the embodiment of the present application can be applied to the outward-folding electronic device shown in Figures 1 to 3, the inward-folding electronic device shown in Figure 4, or the upside-down folding electronic device or other types of folding devices provided in other embodiments.
以上所述，以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310355800.4ACN117128236B (en) | 2023-03-29 | 2023-03-29 | Damping mechanism, folding hinge and electronic equipment |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310355800.4ACN117128236B (en) | 2023-03-29 | 2023-03-29 | Damping mechanism, folding hinge and electronic equipment |
| Publication Number | Publication Date |
|---|---|
| CN117128236A CN117128236A (en) | 2023-11-28 |
| CN117128236Btrue CN117128236B (en) | 2024-08-27 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310355800.4AActiveCN117128236B (en) | 2023-03-29 | 2023-03-29 | Damping mechanism, folding hinge and electronic equipment |
| Country | Link |
|---|---|
| CN (1) | CN117128236B (en) |
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| CN112145542B (en)* | 2019-06-27 | 2022-01-11 | 华为技术有限公司 | Folding modules and folding electronic equipment |
| CN120231822A (en)* | 2023-12-28 | 2025-07-01 | 维沃移动通信有限公司 | Hinge mechanism and electronic equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address | Address after:Unit 3401, unit a, building 6, Shenye Zhongcheng, No. 8089, Hongli West Road, Donghai community, Xiangmihu street, Futian District, Shenzhen, Guangdong 518040 Patentee after:Honor Terminal Co.,Ltd. Country or region after:China Address before:3401, unit a, building 6, Shenye Zhongcheng, No. 8089, Hongli West Road, Donghai community, Xiangmihu street, Futian District, Shenzhen, Guangdong Patentee before:Honor Device Co.,Ltd. Country or region before:China |