Shaft cover, folding mechanism and electronic equipment

Abstract

The utility model relates to the technical field of electronic equipment, in particular to a shaft cover, a folding mechanism and electronic equipment. The shaft cover and the functional assembly are oppositely arranged, the shaft cover is provided with a concave part, at least part of the functional assembly is located in the concave part, the inner wall face of the concave part comprises a first face and a second face which are linearly connected, the first face and the functional assembly are oppositely arranged in the depth direction of the concave part, and the second face is located in the concave part. The second face is connected with the surface, facing the functional assembly, of the shaft cover, and the distance between the first face and the functional assembly is larger than the distance between the second face and the functional assembly. According to the shaft cover, the folding mechanism and the electronic equipment provided by the embodiment of the invention, the problem that the risk of damage to the shaft cover is sharply increased due to collision between the shaft cover and the functional assembly after the electronic equipment falls in the related technology is solved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a shaft cover, a folding mechanism and an electronic equipment. Background Art

[0002] With the rapid development of electronic equipment technology, the form and function of electronic equipment are also developing in a diversified direction, and foldable electronic equipment has also emerged. In foldable electronic equipment, the screen is switched from a folded state to an unfolded state or from an unfolded state to a folded state through a folding mechanism. The folding mechanism generally includes a shaft cover and a functional component. The shaft cover is provided with a receiving groove, and the functional component is arranged in the receiving groove. The functional component can be a synchronization component, a damping component, a bracket, a swing arm or a rotating shaft, etc.

[0003] As foldable electronic devices become thinner and lighter, the shaft covers are also thinned. When traditional electronic devices fall, the shaft covers will collide with functional components, causing the risk of shaft cover damage to increase sharply. Utility Model Content

[0004] The embodiments of the present application provide a shaft cover, a folding mechanism and an electronic device, which are used to improve the problem in the related art that after the electronic device falls, the shaft cover and the functional components may collide, causing a sharp increase in the risk of damage to the shaft cover.

[0005] To achieve the above purpose, the embodiment of the present application adopts the following technical solution:

[0006] In a first aspect, an embodiment of the present application provides a folding mechanism, the folding mechanism comprising:

[0007] Functional components;

[0008] A shaft cover, wherein the shaft cover is arranged opposite to the functional component, the shaft cover is provided with a recessed portion, at least part of the functional component is located in the recessed portion, the inner wall surface of the recessed portion includes a first surface and a second surface which are linearly connected, the first surface and the functional component are arranged opposite to each other in the depth direction of the recessed portion, the second surface is connected to the surface of the shaft cover facing the functional component, and the distance between the first surface and the functional component is greater than the distance between the second surface and the functional component.

[0009] The folding mechanism provided in the embodiment of the present application has at least the following technical effects:

[0010] Since the shaft cover is arranged relative to the functional component, the shaft cover is provided with a recessed portion, at least part of the functional component is located in the recessed portion, and the inner wall surface of the recessed portion includes a first surface and a second surface which are linearly connected, the first surface and the functional component are arranged relative to each other in the depth direction of the recessed portion, and the second surface is connected to the surface of the shaft cover facing the functional component, so after the folding mechanism provided in the embodiment of the present application falls, the shaft cover corresponding to the first surface first contacts the collision object, causing the shaft cover to deform, so that the opening of the recessed portion opens, thereby causing the second surface to move away from the functional component, and the functional component continues to impact in the direction close to the first surface. In addition, since the distance between the first surface and the functional component is greater than the distance between the second surface and the functional component, the second surface will first contact the functional component after moving away from the functional component to achieve buffering, and then the first surface will contact the functional component again. At this time, the impact force of the functional component on the first surface is greatly reduced after buffering, thereby avoiding the problem that the first surface directly collides with the functional component, resulting in a sharp increase in the risk of damage to the shaft cover.

[0011] In one embodiment, the shaft cover is provided with a receiving groove, the functional component is arranged in the receiving groove, the recessed portion is arranged on the bottom wall of the receiving groove, and the second surface is connected to the bottom wall surface of the receiving groove.

[0012] By adopting the above solution, it is convenient to define the position of the functional component by the accommodating groove, and to protect the functional component by the shaft cover.

[0013] In one embodiment, two second surfaces are provided, and the two second surfaces are respectively provided on two opposite sides of the first surface.

[0014] By adopting the above scheme, after the folding mechanism provided in the embodiment of the present application falls, the two second surfaces can move in the direction away from the functional component and contact the functional component successively or simultaneously to achieve buffering, and then the first surface contacts the functional component again, so that the impact force of the functional component on the first surface can be further greatly reduced after buffering, thereby avoiding the problem of direct collision between the first surface and the functional component, which leads to a sharp increase in the risk of damage to the shaft cover.

[0015] In one embodiment, the two second surfaces are arranged symmetrically with respect to the first surface.

[0016] By adopting the above-mentioned scheme, the folding mechanism provided in the embodiment of the present application can ensure that the two second surfaces move away from the functional component and come into contact with the functional component at the same time after falling, thereby better buffering the impact force of the functional component and increasing the number of contact points between the inner wall surface of the recessed portion and the functional component.

[0017] In one embodiment, the two second surfaces are respectively arranged on opposite sides of the first surface along the width direction of the shaft cover.

[0018] By adopting the above-mentioned scheme, the folding mechanism provided in the embodiment of the present application can ensure that after falling, the two second surfaces move in the direction away from the functional component and then come into contact with the functional component to achieve buffering, and then the first surface comes into contact with the functional component again, so that the impact force of the functional component on the first surface can be further greatly reduced after buffering, thereby avoiding the problem of direct collision between the first surface and the functional component, which leads to a sharp increase in the risk of damage to the shaft cover.

[0019] In one embodiment, the inner wall surface of the recessed portion includes a third surface linearly connected to the first surface, the first surface and the third surface are arranged in sequence in the length direction of the shaft cover, the third surface is connected to the surface of the shaft cover facing the functional component, and the distance between the first surface and the functional component is greater than the distance between the third surface and the functional component.

[0020] By adopting the above solution, the second surface can collide with the functional component before the first surface after moving away from the functional component, and the third surface can collide with the functional component before the first surface after moving away from the functional component, thereby better buffering the impact force of the functional component.

[0021] In one embodiment, two third surfaces are provided, and the two second surfaces are respectively provided on two opposite sides of the first surface.

[0022] By adopting the above-mentioned scheme, after the folding mechanism provided in the embodiment of the present application falls, the two third surfaces can move in the direction away from the functional component and contact the functional component successively or simultaneously to achieve buffering, and then the first surface contacts the functional component again, so that the impact force of the functional component on the first surface can be further greatly reduced after buffering, thereby avoiding the problem of direct collision between the first surface and the functional component, which leads to a sharp increase in the risk of damage to the shaft cover.

[0023] In one embodiment, the distance between the third surface and the functional component is equal to the distance between the second surface and the functional component.

[0024] By adopting the above scheme, after the folding mechanism provided in the embodiment of the present application falls, the two third surfaces can move in the direction away from the functional component and contact with the functional component at the same time to achieve buffering, and then the first surface can contact with the functional component again, so that the impact force of the functional component on the first surface can be further greatly reduced after buffering, thereby avoiding the problem of direct collision between the first surface and the functional component, which leads to a sharp increase in the risk of damage to the shaft cover.

[0025] In one embodiment, the third surface is configured as a plane or a curved surface.

[0026] By adopting the above solution, the third surface can be easily processed.

[0027] In one embodiment, a difference between a distance between the first surface and the functional component and a distance between the second surface and the functional component is greater than or equal to 0.03 mm.

[0028] By adopting the above solution, it can be ensured that the two second surfaces will contact the functional component successively or simultaneously after moving away from the functional component, so as to achieve buffering, and then the first surface will contact the functional component. At the same time, it can also avoid that the distance between the first surface and the functional component is less than or equal to the distance between the second surface and the functional component due to processing errors, thereby causing the first surface to contact the functional component before the second surface.

[0029] In one embodiment, a difference between a distance between the first surface and the functional component and a distance between an end of the second surface away from the first surface and the functional component is greater than or equal to 0.03 mm.

[0030] By adopting the above solution, it can be ensured that the two second surfaces will contact the functional component successively or simultaneously after moving away from the functional component to achieve buffering, and then the first surface will contact the functional component.

[0031] In one embodiment, the first surface is configured as a flat surface or a curved surface.

[0032] By adopting the above solution, the third surface can be easily processed.

[0033] In one embodiment, the functional component includes a synchronization component, the synchronization component includes a synchronization gear, and the first surface is configured as an arc surface coaxially arranged with the synchronization gear.

[0034] By adopting the above solution, it is convenient to set the recessed portion to match the synchronous gear, so that the distance between the recessed portion and the synchronous gear is a constant value, thereby preventing the inner wall surface of the recessed portion from colliding with only a single tooth of the synchronous gear.

[0035] In one embodiment, the central angle of the arc surface is greater than or equal to 15°.

[0036] By adopting the above solution, the arc surface can be adapted to at least a single tooth of the synchronous gear, ensuring that the recessed portion can accommodate at least the synchronous gear.

[0037] In one embodiment, the second surface is configured as a flat surface or a curved surface.

[0038] By adopting the above solution, the third surface can be easily processed.

[0039] In a second aspect, an embodiment of the present application provides a shaft cover, which is used for a folding mechanism, and the folding mechanism includes a functional component. The shaft cover is arranged opposite to the functional component, and the shaft cover is provided with a recessed portion, at least part of the functional component is located in the recessed portion, and the inner wall surface of the recessed portion includes a first surface and a second surface connected linearly, the first surface and the functional component are arranged opposite to each other in the depth direction of the recessed portion, the second surface is connected to the surface of the shaft cover facing the functional component, and the distance between the first surface and the functional component is greater than the distance between the second surface and the functional component.

[0040] In one embodiment, the shaft cover is provided with a receiving groove, the functional component is arranged in the receiving groove, the recessed portion is arranged on the bottom wall of the receiving groove, and the second surface is connected to the bottom wall surface of the receiving groove.

[0041] In a third aspect, an embodiment of the present application provides an electronic device, wherein the electronic device includes the folding mechanism as described in the second aspect.

[0042] The beneficial effects of the shaft cover provided in the embodiment of the present application over the prior art and the beneficial effects of the electronic device provided in the embodiment of the present application over the prior art are similar to the beneficial effects of the folding mechanism provided in the embodiment of the present application over the prior art, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A perspective view of a folding mechanism provided for related art;

[0044] Figure 2 for Figure 1 A cross-sectional view of the folding mechanism shown along the MM direction;

[0045] Figure 3 for Figure 2 The enlarged view of P in the middle;

[0046] Figure 4 A three-dimensional diagram of a folding mechanism provided in one embodiment of the present application in a folded state;

[0047] Figure 5 for Figure 4 A cross-sectional view of the folding mechanism shown along the NN direction;

[0048] Figure 6 for Figure 5 Enlarged view of the middle Q;

[0049] Figure 7 for Figure 4 A cross-sectional view along the NN direction when the folding mechanism is in a folded state;

[0050] Figure 8 for Figure 7 Enlarged view of R in the middle;

[0051] Fig. 9 A partial cross-sectional view of a folding mechanism in a folded state provided in another embodiment of the present application;

[0052] Fig.10 A partial cross-sectional view of a folding mechanism in a folded state provided in yet another embodiment of the present application.

[0053] Among them, the reference numerals in the figure are:

[0054] 100. Folding mechanism;

[0055] 01. Accommodation groove; 02. Avoidance groove; 03. Arc-shaped bottom surface;

[0056] 10. Shaft cover;

[0057] 11. accommodating groove; 12. recessed portion; 121. first surface; 122. second surface;

[0058] 20. Functional components. DETAILED DESCRIPTION

[0059] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0060] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "top", "bottom", "inside", "outside", "up", "down", "left", "right", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0061] The terms "first", "second", "third", "fourth", etc. are only used to distinguish descriptions and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. For example, the first push part and the second push part are only used to distinguish different push parts, and their order is not limited. The first push part can also be named as the second push part, and the second push part can also be named as the first push part without departing from the scope of the various described embodiments. And the terms "first", "second", "third", "fourth", etc. do not limit the indicated features to be different.

[0062] In this application, unless otherwise clearly specified and limited, the terms "connected", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0063] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0064] It should be noted that, in this application, words such as "in one embodiment", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in this application as "in one embodiment", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in one embodiment", "exemplarily", "for example", etc. is intended to present related concepts in a specific way.

[0065] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0066] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 A three-dimensional diagram of a folding mechanism 100 provided in the related art, Figure 2 for Figure 1 The folding mechanism 100 is shown in a cross-sectional view along the MM direction. Figure 3 for Figure 2 Enlarged view of point P in the middle.

[0067] The folding mechanism 100 of the electronic device generally includes a shaft cover 10 and a functional component 20. The shaft cover 10 is provided with a receiving groove 01. The functional component 20 is arranged in the receiving groove 01. The functional component 20 can be a synchronization component, a damping component, a bracket, a swing arm or a rotating shaft.

[0068] The shaft cover 10 of the folding structure in the conventional electronic device is often provided with a receiving groove 01 for receiving the functional component 20, and the bottom wall of the receiving groove 01 is provided with a avoiding groove 02, and at least part of the functional component 20 is located in the avoiding groove 02. Such a configuration can avoid the problem that due to the large size of the functional component 20, a large distance needs to be set between the bottom wall of the receiving groove 01 and the functional component 20, which in turn causes the folding structure to be large in size in the arrangement direction of the bottom wall of the receiving groove 01 and the functional component 20.

[0069] Please refer to Figure 3 The bottom surface of the avoidance groove 02 in the conventional shaft cover 10 is often set as an arc bottom surface 03. The distance between each part of the arc bottom surface 03 and the functional component 20 is equal. After falling, the shaft cover 10 and the functional component 20 will collide. When the shaft cover 10 corresponding to the middle part of the arc bottom surface 03 first contacts the collision object, the collision object will exert the following impact on the shaft cover 10: Figure 3 When a force is applied in the direction indicated by the middle arrow A, the shaft cover 10 will be deformed, causing both ends of the arc-shaped bottom surface 03 to move away from the functional component 20. For example, the two ends of the arc-shaped bottom surface 03 move in the directions indicated by the arrows B and C respectively, causing the distance between the middle of the arc-shaped bottom surface 03 and the functional component 20 to be smaller than the distance between the two ends of the arc-shaped bottom surface 03, thereby causing the middle of the arc-shaped bottom surface 03 to collide with the functional component 20 alone first, and then the two ends of the arc-shaped bottom surface 03 collide with the functional component 20.

[0070] As foldable electronic devices become thinner and lighter, the shaft cover 10 is also thinned. As a result, when the middle of the curved bottom surface 03 directly collides with the functional component 20, the risk of damage to the shaft cover 10 and the functional component 20 corresponding to the middle of the curved bottom surface 03 increases sharply due to the large impact force.

[0071] In view of this, the embodiment of the present application provides a shaft cover 10, a folding mechanism 100 and an electronic device, which can improve the technical problem.

[0072] The embodiments of the present application may be mobile phones, tablet computers, laptop computers, wearable devices (such as watches), vehicle-mounted devices, etc., but are not limited thereto. In the embodiments of the present application, the electronic device is a mobile phone as an example for description.

[0073] Please refer to Figures 4 to 8 , Figure 4 A three-dimensional diagram of a folding mechanism 100 provided in one embodiment of the present application in a folded state. Figure 5 for Figure 4 The cross-sectional view of the folding mechanism 100 along the NN direction is shown. Figure 6 for Figure 5 The enlarged view of the middle Q, Figure 7 for Figure 4 The folding mechanism 100 is shown in a cross-sectional view along the NN direction when it is in a folded state. Figure 8 for Figure 7 Enlarged view of R in the middle.

[0074] In a first aspect, an embodiment of the present application provides a folding mechanism 100 , which includes a functional component 20 and a shaft cover 10 .

[0075] The functional component 20 may be a synchronization component, a damping component, a bracket, a swing arm or a rotating shaft, etc.

[0076] The synchronization component is used to ensure the synchronous rotation of various components in the foldable mechanism 100 when the electronic device switches between the folded state and the flattened state. One or more synchronization components may be provided.

[0077] The damping component is used to provide a damping force when the electronic device is in a folded state or an unfolded state and switches between the folded state and the unfolded state. One or more damping components may be provided.

[0078] The bracket can be connected to the shaft cover 10, and the swing arm can be connected to the display screen.

[0079] The shaft cover 10 is arranged opposite to the functional component 20, and the shaft cover 10 is provided with a recessed portion 12, at least part of the functional component 20 is located in the recessed portion 12, and the inner wall surface of the recessed portion 12 includes a first surface 121 and a second surface 122 which are linearly connected, the first surface 121 and the functional component 20 are arranged opposite to each other in the depth direction of the recessed portion 12, the second surface 122 is connected to the surface of the shaft cover 10 facing the functional component 20, and the distance between the first surface 121 and the functional component 20 is greater than the distance between the second surface 122 and the functional component 20.

[0080] The recessed portion 12 may be a groove or a blind hole. The first surface 121 and the second surface 122 may be both planes or curved surfaces, the first surface 121 may be the bottom wall surface of the recessed portion 12, and the second surface 122 may be the side wall surface of the recessed portion 12. For example, the first surface 121 may be a curved surface, and the second surface 122 may be an inclined surface. The connecting line between the first surface 121 and the second surface 122 may be a straight line or a curve. In the present embodiment, the first surface 121 and the second surface 122 are both curved surfaces. The portion where the second surface 122 is connected to the surface of the shaft cover 10 facing the functional component 20 constitutes the side of the opening of the recessed portion 12.

[0081] The distance between the first surface 121 and the functional component 20 is greater than the distance between the second surface 122 and the functional component 20, that is, the distance between the first surface 121 and the functional component 20 is constant at the first preset value, the distance between the second surface 122 and the functional component 20 is constant at the second preset value, and the first preset value is greater than the second preset value. Alternatively, the distance between the first surface 121 and the functional component 20 is constant at the first preset value, the maximum distance between the second surface 122 and the functional component 20 is the second preset value, and the first preset value is greater than the second preset value. Alternatively, the minimum distance between the first surface 121 and the functional component 20 is the first preset value, the distance between the second surface 122 and the functional component 20 is constant at the second preset value, and the first preset value is greater than the second preset value. Alternatively, the minimum distance between the first surface 121 and the functional component 20 is the first preset value, the maximum distance between the second surface 122 and the functional component 20 is the second preset value, and the first preset value is greater than the second preset value.

[0082] From the above, it can be known that the folding mechanism 100 provided in the embodiment of the present application, since the shaft cover 10 and the functional component 20 are arranged relative to each other, the shaft cover 10 is provided with a recessed portion 12, at least part of the functional component 20 is located in the recessed portion 12, and the inner wall surface of the recessed portion 12 includes a first surface 121 and a second surface 122 which are linearly connected, the first surface 121 and the functional component 20 are arranged relative to each other in the depth direction of the recessed portion 12, and the second surface 122 is connected to the surface of the shaft cover 10 facing the functional component 20. Therefore, after the folding mechanism 100 provided in the embodiment of the present application falls, the shaft cover 10 corresponding to the first surface 121 first contacts with a collision object, and the collision object will exert the following force on the shaft cover 10: Figure 6 The force in the direction indicated by the arrow A in the middle causes the shaft cover 10 to deform, so that the opening of the recessed portion 12 opens, thereby causing the second surface 122 to move away from the functional component 20, that is, the second surface 122 moves as shown in FIG. Figure 6 The functional component 20 moves in the direction indicated by the arrow B or arrow C, and the functional component 20 continues to impact in the direction close to the first surface 121. Since the distance between the first surface 121 and the functional component 20 is greater than the distance between the second surface 122 and the functional component 20, the second surface 122 will first contact the functional component 20 after moving in the direction away from the functional component 20 to achieve buffering, and the thickness of the shaft cover 10 corresponding to the second surface 122 is relatively large, and the strength of the shaft cover 10 is correspondingly relatively large, and then the first surface 121 contacts the functional component 20 again. At this time, the impact force of the functional component 20 on the first surface 121 is greatly reduced after buffering, thereby avoiding the problem that the first surface 121 directly collides with the functional component 20, resulting in a sharp increase in the risk of damage to the shaft cover 10.

[0083] It can be understood that the folding mechanism 100 provided in the embodiment of the present application can also avoid the problem that the first surface 121 directly collides with the functional component 20, resulting in a sharp increase in the risk of damage to the functional component 20. Among them, the rotating shaft is the core component of the folding mechanism 100, and the overall strength of the rotating shaft will affect the drop resistance, impact resistance, and bending resistance of the electronic device as a whole, and ultimately affect the user experience. The folding mechanism 100 provided in the embodiment of the present application can further thin the rotating shaft in the folding mechanism 100 and further reduce the synchronous gear in the synchronous component, improve the risk of synchronous gear falling and impact, and enhance the reliability of the rotating shaft.

[0084] Among them, the distance between the first surface 121 and the functional component 20 and the distance between the second surface 122 and the functional component 20 can be reasonably set through experiments to ensure that the folding mechanism 100 provided in the embodiment of the present application will collide with the functional component 20 at about the same time as the first surface 121 after the second surface 122 moves away from the functional component 20 after falling.

[0085] In this embodiment, the shaft cover 10 is provided with a receiving groove 11, the functional component 20 is provided in the receiving groove 11, the recessed portion 12 is provided on the bottom wall of the receiving groove 11, and the second surface 122 is connected to the bottom wall surface of the receiving groove 11. Such a configuration facilitates the position of the functional component 20 to be limited by the receiving groove 11, and facilitates the shaft cover 10 to protect the functional component 20.

[0086] It can be understood that the surface of the shaft cover 10 facing the functional component 20 is the second surface 122 and the bottom wall surface of the receiving groove 11. The depth direction of the recessed portion 12 is parallel to the depth direction of the receiving groove 11. After the shaft cover 10 corresponding to the first surface 121 first contacts the collision object, the collision object will exert the following impact on the shaft cover 10: Figure 6 The force in the direction indicated by the arrow A causes the bottom wall of the receiving groove 11 to deform.

[0087] Please refer to Figure 4 , Figure 5 and Figure 6 In this embodiment, two second surfaces 122 are provided, and the two second surfaces 122 are respectively provided on two opposite sides of the first surface 121 .

[0088] With such an arrangement, after the folding mechanism 100 provided in the embodiment of the present application falls, the two second surfaces 122 move in a direction away from the functional component 20 and contact the functional component 20 successively or simultaneously to achieve buffering, and then the first surface 121 contacts the functional component 20 again, so that the impact force of the functional component 20 on the first surface 121 can be further greatly reduced after buffering, thereby avoiding the problem that the first surface 121 directly collides with the functional component 20, resulting in a sharp increase in the risk of damage to the shaft cover 10.

[0089] Specifically, the two second surfaces 122 are symmetrically arranged with respect to the first surface 121. With such an arrangement, after the folding mechanism 100 provided in the embodiment of the present application falls, it can be ensured that the two second surfaces 122 move away from the functional component 20 and simultaneously come into contact with the functional component 20, thereby better buffering the impact force of the functional component 20 and increasing the number of contact points between the inner wall surface of the recessed portion 12 and the functional component 20.

[0090] It can be understood that the distance between the first surface 121 and the functional component 20 and the distance between the second surface 122 and the functional component 20 can be reasonably set by way of experiment, so that after the folding mechanism 100 provided in the embodiment of the present application falls, the two second surfaces 122 move away from the functional component 20 and come into contact with the functional component 20 at the same time, and the first surface 121 does not come into contact with the functional component 20. The distance between the first surface 121 and the functional component 20 and the distance between the second surface 122 and the functional component 20 can also be reasonably set by way of experiment, so that after the folding mechanism 100 provided in the embodiment of the present application falls, the first surface 121 and the two second surfaces 122 come into contact with the functional component 20 at the same time.

[0091] In this embodiment, the two second surfaces 122 are respectively arranged on opposite sides of the first surface 121 along the width direction of the shaft cover 10. With such arrangement, after the folding mechanism 100 provided in the embodiment of the present application falls, it is ensured that the two second surfaces 122 move away from the functional component 20 and contact with the functional component 20 to achieve buffering, and then the first surface 121 contacts with the functional component 20 again, so that the impact force of the functional component 20 on the first surface 121 can be further greatly reduced after buffering, avoiding the problem that the first surface 121 directly collides with the functional component 20, resulting in a sharp increase in the risk of damage to the shaft cover 10.

[0092] Specifically, the width direction of the shaft cover 10 may be parallel to the width direction of the receiving groove 11. The length direction of the shaft cover 10 may be parallel to the length direction of the receiving groove 11.

[0093] The length direction of the receiving groove 11 may be parallel to the axis direction of the rotation axis of the folding mechanism 100, the width direction of the receiving groove 11 may be perpendicular to the length direction of the receiving groove 11, and the width direction of the receiving groove 11 may be perpendicular to the depth direction of the receiving groove 11. For example, the length direction of the receiving groove 11 may be parallel to the X direction in the figure, the width direction of the receiving groove 11 may be parallel to the Y direction in the figure, and the depth direction of the receiving groove 11 may be parallel to the Z direction in the figure.

[0094] Optionally, the difference between the distance between the first surface 121 and the functional component 20 and the distance between the second surface 122 and the functional component 20 is greater than or equal to 0.03 mm. This arrangement ensures that the two second surfaces 122 will contact the functional component 20 one after another or simultaneously after moving away from the functional component 20, achieving buffering, and then the first surface 121 contacts the functional component 20. At the same time, it can also avoid that the distance between the first surface 121 and the functional component 20 is less than or equal to the distance between the second surface 122 and the functional component 20 due to processing errors, thereby causing the first surface 121 to contact the functional component 20 before the second surface 122.

[0095] By way of example, the difference between the distance between the first surface 121 and the functional component 20 and the minimum distance between the second surface 122 and the functional component 20 is equal to 0.03 mm.

[0096] Specifically, the difference between the distance between the first surface 121 and the functional component 20 and the distance between the end of the second surface 122 away from the first surface 121 and the functional component 20 is greater than or equal to 0.03 mm. This arrangement ensures that the two second surfaces 122 will contact the functional component 20 one after another or simultaneously after moving away from the functional component 20, achieving buffering, and then the first surface 121 contacts the functional component 20.

[0097] Considering that the recessed portion 12 is a three-dimensional structure, after the folding mechanism 100 provided in the embodiment of the present application falls, the shaft cover 10 corresponding to the first surface 121 first contacts the collision object, causing the shaft cover 10 to deform, so that the opening of the recessed portion 12 opens, thereby not only causing the second surface 122 to move away from the functional component 20, but also causing the other inner wall surfaces of the recessed portion 12 to move away from the functional component 20.

[0098] Optionally, the inner wall surface of the recessed portion 12 includes a third surface linearly connected to the first surface 121, the first surface 121 and the third surface are sequentially arranged in the length direction of the shaft cover 10, the third surface is connected to the surface of the shaft cover 10 facing the functional component 20, and the distance between the first surface 121 and the functional component 20 is greater than the distance between the third surface and the functional component 20. With such an arrangement, the second surface 122 can collide with the functional component 20 before the first surface 121 after moving away from the functional component 20, and the third surface can collide with the functional component 20 before the first surface 121 after moving away from the functional component 20, thereby achieving better buffering of the impact force of the functional component 20.

[0099] It can be understood that the third surface can be a side wall surface of the recessed portion 12. The third surface can be set as a plane or a curved surface. The portion where the third surface is connected to the surface of the shaft cover 10 facing the functional component 20 constitutes the side edge of the opening of the recessed portion 12.

[0100] Optionally, two third surfaces are provided, and the two second surfaces 122 are respectively provided on opposite sides of the first surface 121. With such a configuration, after the folding mechanism 100 provided in the embodiment of the present application falls, the two third surfaces move away from the functional component 20 and contact the functional component 20 successively or simultaneously to achieve buffering, and then the first surface 121 contacts the functional component 20 again, so that the impact force of the functional component 20 on the first surface 121 can be further greatly reduced after buffering, thereby avoiding the problem that the first surface 121 directly collides with the functional component 20, resulting in a sharp increase in the risk of damage to the shaft cover 10.

[0101] Specifically, the two third surfaces are symmetrically arranged with respect to the first surface 121. With such an arrangement, after the folding mechanism 100 provided in the embodiment of the present application falls, the two third surfaces move away from the functional component 20 and contact with the functional component 20 at the same time to achieve buffering, and then the first surface 121 contacts with the functional component 20 again, so that the impact force of the functional component 20 on the first surface 121 can be further greatly reduced after buffering, thereby avoiding the problem that the first surface 121 directly collides with the functional component 20, resulting in a sharp increase in the risk of damage to the shaft cover 10.

[0102] Optionally, the distance between the third surface and the functional component 20 is equal to the distance between the second surface 122 and the functional component 20. With such a configuration, the functional component 20 of the folding mechanism 100 provided in the embodiment of the present application can be better buffered after falling, ensuring that the two third surfaces and the two second surfaces 122 will collide with the functional component 20 at the same time, thereby better buffering the impact force of the functional component 20, and at the same time, the number of collision points between the shaft cover 10 and the functional component 20 can be increased, thereby improving the problem of a sharp increase in the risk of damage to the shaft cover 10.

[0103] Please refer to Figures 4 to 8 In this embodiment, the functional component 20 includes a synchronization component, the synchronization component includes a synchronization gear, and the first surface 121 is set as an arc surface coaxially arranged with the synchronization gear. Such a setting facilitates the setting of the recessed portion 12 to adapt to the synchronization gear, so that the distance between the recessed portion 12 and the synchronization gear is a constant value, and the inner wall surface of the recessed portion 12 is prevented from colliding with only a single tooth of the synchronization gear.

[0104] Specifically, since the first surface 121 is set as an arc surface coaxially arranged with the synchronous gear, and the distance between the first surface 121 and the functional component 20 is greater than the distance between the second surface 122 and the functional component 20, the shortest line segment between the axis of the synchronous gear and the first surface 121 can be the line segment HK or the line segment HL, and the length of the shortest line segment HI or HJ between the axis of the synchronous gear and the second surface 122 is less than the length of the line segment HK. The length difference between the line segment HK and the line width HI is greater than or equal to 0.03 mm.

[0105] It should be noted that as foldable electronic devices become thinner and lighter, the synchronous gears are also thinned and their strength is reduced. The folding mechanism 100 provided in the embodiment of the present application can also improve the problem of a sharp increase in the risk of synchronous gear tooth breakage caused by a drop impact.

[0106] Please refer to Figure 6 Optionally, the center angle α of the arc surface is greater than or equal to 15°. This configuration enables the arc surface to at least match a single tooth of the synchronous gear, ensuring that the recessed portion 12 can accommodate at least the synchronous gear.

[0107] Please refer to Fig. 9 , Fig. 9 A partial cross-sectional view of a folding mechanism 100 in a folded state provided in another embodiment of the present application.

[0108] Different from the above embodiment, in another embodiment, the first surface 121 is configured as a curved surface, and the second surface 122 is configured as an inclined plane.

[0109] Please refer to Fig.10 , Fig.10 A partial cross-sectional view of a folding mechanism 100 in a folded state provided in yet another embodiment of the present application.

[0110] Different from the above embodiment, in another embodiment, the first surface 121 is set as a plane, and the second surface 122 is set as an inclined plane.

[0111] In the second aspect, an embodiment of the present application provides a shaft cover 10, which is used for a folding mechanism 100, and the folding mechanism 100 includes a functional component 20. The shaft cover 10 is provided with a receiving groove 11, and the receiving groove 11 is used to set the functional component 20. The bottom wall of the receiving groove 11 is provided with a recessed portion 12, and at least part of the functional component 20 is located in the recessed portion 12. The inner wall surface of the recessed portion 12 includes a first surface 121 and a second surface 122 which are linearly connected. The first surface 121 and the functional component 20 are arranged relative to each other in the depth direction of the recessed portion 12, and the second surface 122 is connected to the bottom wall of the receiving groove 11, and the distance between the first surface 121 and the functional component 20 is greater than the distance between the second surface 122 and the functional component 20.

[0112] The shaft cover 10 provided in the embodiment of the present application is arranged relative to the functional component 20, and the shaft cover 10 is provided with a recessed portion 12, at least part of the functional component 20 is located in the recessed portion 12, and the inner wall surface of the recessed portion 12 includes a first surface 121 and a second surface 122 which are linearly connected, the first surface 121 and the functional component 20 are arranged relative to each other in the depth direction of the recessed portion 12, and the second surface 122 is connected to the surface of the shaft cover 10 facing the functional component 20. Therefore, after the folding mechanism 100 having the shaft cover 10 provided in the embodiment of the present application falls, the shaft cover 10 corresponding to the first surface 121 first contacts the collision object, causing the shaft cover 10 to deform, so that the opening of the recessed portion 12 opens, thereby causing the second surface 122 to move away from the functional component 20, and the functional component 20 continues to impact in the direction close to the first surface 121. Since the distance between the first surface 121 and the functional component 20 is greater than the distance between the second surface 122 and the functional component 20, the second surface 122 will first contact the functional component 20 after moving in the direction away from the functional component 20 to achieve buffering, and the thickness of the shaft cover 10 corresponding to the second surface 122 is larger, and the strength of the shaft cover 10 is correspondingly larger. Then the first surface 121 contacts the functional component 20 again. At this time, the impact force of the functional component 20 on the first surface 121 is greatly reduced after buffering, thereby avoiding the first surface 121 directly colliding with the functional component 20, resulting in a sharp increase in the risk of damage to the shaft cover 10.

[0113] In a third aspect, an embodiment of the present application provides an electronic device, and the electronic device includes the folding mechanism 100 as in the second aspect.

[0114] The electronic device provided in the embodiment of the present application has a shaft cover 10 and a functional component 20 arranged relative to each other, and the shaft cover 10 is provided with a recessed portion 12, at least part of the functional component 20 is located in the recessed portion 12, and the inner wall surface of the recessed portion 12 includes a first surface 121 and a second surface 122 which are linearly connected, the first surface 121 and the functional component 20 are arranged relative to each other in the depth direction of the recessed portion 12, and the second surface 122 is connected to the surface of the shaft cover 10 facing the functional component 20. Therefore, after the electronic device provided in the embodiment of the present application falls, the shaft cover 10 corresponding to the first surface 121 first contacts the collision object, causing the shaft cover 10 to deform, so that the opening of the recessed portion 12 opens, thereby causing the second surface 122 to move away from the functional component 20, and the functional component 20 continues to impact in the direction close to the first surface 121. Since the distance between the first surface 121 and the functional component 20 is greater than the distance between the second surface 122 and the functional component 20, the second surface 122 will first contact the functional component 20 after moving in the direction away from the functional component 20 to achieve buffering, and the thickness of the shaft cover 10 corresponding to the second surface 122 is larger, and the strength of the shaft cover 10 is correspondingly larger. Then the first surface 121 contacts the functional component 20 again. At this time, the impact force of the functional component 20 on the first surface 121 is greatly reduced after buffering, thereby avoiding the first surface 121 directly colliding with the functional component 20, resulting in a sharp increase in the risk of damage to the shaft cover 10.

[0115] The above are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A folding mechanism, characterized in that: The folding mechanism comprises: Functional components; A shaft cover, wherein the shaft cover is arranged opposite to the functional component, the shaft cover is provided with a recessed portion, at least part of the functional component is located in the recessed portion, the inner wall surface of the recessed portion includes a first surface and a second surface which are linearly connected, the first surface and the functional component are arranged opposite to each other in the depth direction of the recessed portion, the second surface is connected to the surface of the shaft cover facing the functional component, and the distance between the first surface and the functional component is greater than the distance between the second surface and the functional component.

2. The folding mechanism according to claim 1, characterized in that: The shaft cover is provided with a receiving groove, the functional component is arranged in the receiving groove, the recessed portion is arranged on the bottom wall of the receiving groove, and the second surface is connected to the bottom wall surface of the receiving groove.

3. The folding mechanism according to claim 1, characterized in that: Two second surfaces are provided, and the two second surfaces are respectively provided on two opposite sides of the first surface.

4. The folding mechanism according to claim 3, characterized in that: The two second surfaces are arranged symmetrically with respect to the first surface.

5. The folding mechanism according to claim 2, characterized in that: The two second surfaces are respectively arranged on opposite sides of the first surface along the width direction of the shaft cover.

6. The folding mechanism according to claim 5, characterized in that: The inner wall surface of the recessed portion includes a third surface linearly connected to the first surface, the first surface and the third surface are arranged in sequence in the length direction of the shaft cover, the third surface is connected to the surface of the shaft cover facing the functional component, and the distance between the first surface and the functional component is greater than the distance between the third surface and the functional component.

7. The folding mechanism according to claim 6, characterized in that: Two third surfaces are provided, and the two second surfaces are respectively provided on two opposite sides of the first surface.

8. The folding mechanism according to claim 6, characterized in that: The distance between the third surface and the functional component is equal to the distance between the second surface and the functional component.

9. The folding mechanism according to claim 6, characterized in that: The third surface is configured as a plane or a curved surface.

10. The folding mechanism according to any one of claims 1 to 9, characterized in that: A difference between a distance between the first surface and the functional component and a distance between the second surface and the functional component is greater than or equal to 0.03 mm.

11. The folding mechanism according to claim 10, characterized in that: A difference between a distance between the first surface and the functional component and a distance between an end of the second surface away from the first surface and the functional component is greater than or equal to 0.03 mm.

12. The folding mechanism according to any one of claims 1 to 9, characterized in that: The first surface is configured as a flat surface or a curved surface.

13. The folding mechanism according to claim 12, characterized in that: The functional component includes a synchronization component, the synchronization component includes a synchronization gear, and the first surface is configured as an arc surface coaxially arranged with the synchronization gear.

14. The folding mechanism according to claim 13, characterized in that: The central angle of the arc surface is greater than or equal to 15°.

15. The folding mechanism according to any one of claims 1 to 9, characterized in that: The second surface is configured as a flat surface or a curved surface.

16. A shaft cover, characterized in that: The shaft cover is used for a folding mechanism, which includes a functional component. The shaft cover is arranged opposite to the functional component, and the shaft cover is provided with a recessed portion. At least part of the functional component is located in the recessed portion. The inner wall surface of the recessed portion includes a first surface and a second surface that are linearly connected. The first surface and the functional component are arranged opposite to each other in the depth direction of the recessed portion, and the second surface is connected to the surface of the shaft cover facing the functional component, and the distance between the first surface and the functional component is greater than the distance between the second surface and the functional component.

17. The shaft cover according to claim 16, characterized in that: The shaft cover is provided with a receiving groove, the functional component is arranged in the receiving groove, the recessed portion is arranged on the bottom wall of the receiving groove, and the second surface is connected to the bottom wall surface of the receiving groove.

18. An electronic device, characterized in that: The electronic device comprises the folding mechanism according to any one of claims 1 to 15.

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