Rotating shaft device and electronic equipment

Abstract

The utility model provides a rotating shaft device and electronic equipment, and the rotating shaft device comprises a first connecting piece and a second connecting piece which sleeves at least part of the outer side of the first connecting piece; the first connecting piece and the second connecting piece can rotate relatively and are in frictional contact so as to provide target damping force for the rotating shaft device; wherein a first section part and a second section part are arranged in the axial direction of the first connecting piece and the second connecting piece, the first section part is provided with a part, sleeved with the first connecting piece, of the second connecting piece, and the second section part is provided with the other part, sleeved with the first connecting piece, of the second connecting piece; the first section provides first damping force for rotation of the first connecting piece relative to the second connecting piece, the second section provides second damping force for rotation of the first connecting piece relative to the second connecting piece, the second damping force is smaller than the first damping force, and the sum of the first damping force and the second damping force is target damping force; and the radial cross-sectional area of any position in the second section part is smaller than that of any position in the first section part.

Description

Technical Field

[0001] The present application relates to the technical field of connection structures of electronic devices, and particularly to a rotating shaft device and an electronic device. Background Art

[0002] The wrapped hinge structure is a structural optimization for the connection part between the first body and the second body of an electronic device, which emphasizes the use of a more integrated, concealed and aesthetic transfer structure at the connection part between the first body and the second body.

[0003] One solution is to reduce the diameter size of the hinge structure to meet the market demand for thinner and lighter product appearance. Utility Model Content

[0004] The embodiments of the present application provide the following technical solutions:

[0005] A rotating shaft device, comprising:

[0006] A first connecting member, configured to connect to one of the first body or the second body of the electronic device;

[0007] A second connecting member, sleeved on at least a part of the outer side of the first connecting member, and configured to connect to the other of the first body or the second body of the electronic device;

[0008] The first connecting member and the second connecting member can rotate relative to each other, and the first connecting member and the second connecting member are in frictional contact to provide the target damping force of the rotating shaft device;

[0009] Wherein, along the axial direction of the first connecting member and the second connecting member, there are at least one first section and at least one second section. The first section has a part of the second connecting member sleeved on the first connecting member, and the second section has another part of the second connecting member sleeved on the first connecting member.

[0010] The first section provides a first damping force for the rotation of the first connecting member relative to the second connecting member, the second section provides a second damping force for the rotation of the first connecting member relative to the second connecting member, the second damping force is less than the first damping force, the sum of the first damping force and the second damping force is the target damping force, and the cross-sectional area in the radial direction at any position in the second section is smaller than the cross-sectional area in the radial direction at any position in the first section.

[0011] In some embodiments, both the first section and the second section are one section, and the second section is located on one side of the first section; or

[0012] The first section is a single section, the second section is two sections, and the second section is located on opposite sides of the first section; or

[0013] The first section is two sections, the second section is a single section, and the first section is located on opposite sides of the second section; or

[0014] Both the first section and the second section are multiple sections, and the first section and the second section are arranged in sequence. One end of each first section is provided with a second section, and one end of each second section is provided with a first section.

[0015] In some embodiments, the axial length of at least one second section is less than the axial length of at least one first section.

[0016] In some embodiments, the areas of the radial cross-sections of the first section and the second section of the first connecting member are equal, and the area of the radial cross-section of the first section of the second connecting member is greater than the area of the radial cross-section of the second section; or,

[0017] The area of the radial cross-section of the first section of the first connecting member is greater than the area of the radial cross-section of the second section, and the areas of the radial cross-sections of the first section and the second section of the second connecting member are equal; or,

[0018] The area of the radial cross-section of the first section of the first connecting member is greater than the area of the radial cross-section of the second section, and the area of the radial cross-section of the first section of the second connecting member is greater than the area of the radial cross-section of the second section.

[0019] In some embodiments, the areas of the radial cross-sections of the first connecting member are equal;

[0020] The area of the radial cross-section of the second connecting member gradually decreases from the first section to the second section, so that the second connecting member is in a conical or frustum shape; or, it is gradually cut in a stepped manner from the first section to the second section, so that the second connecting member is in a stepped shape.

[0021] In some embodiments, the areas of the radial cross-sections of the second connecting member are equal;

[0022] The area of the radial cross-section of the first connecting member is gradually reduced from the first section to the second section, so that the first connecting portion is in a conical or frustum shape; or, it is gradually cut in a stepped manner from the first section to the second section, so that the first connecting member is in a stepped shape.

[0023] In some embodiments, the areas of the radial cross-sections of the first connecting member and the second connecting member both gradually decrease from the first section to the second section, so that both the first connecting member and the second connecting member are in the shape of a cone or a frustum of a cone; or, the areas of the radial cross-sections of the first connecting member and the second connecting member are both stepped down from the first section to the second section, so that both the first connecting member and the second connecting member are in a stepped shape.

[0024] In some embodiments, there are two first connecting members, and the axes of the two first connecting members satisfy the parallel condition;

[0025] There are two second connecting members, which are respectively sleeved outside the first connecting members.

[0026] In some embodiments, an electronic device includes:

[0027] A first body, a second body, and a rotating shaft device, and the first body and the second body can rotate relative to each other through the rotating shaft device;

[0028] The rotating shaft device includes:

[0029] A first connecting member for connecting to one of the first body or the second body of the electronic device;

[0030] A second connecting member sleeved on at least a part of the outside of the first connecting member for connecting to the other of the first body or the second body of the electronic device;

[0031] The first connecting member and the second connecting member can rotate relative to each other, and the first connecting member and the second connecting member are in frictional contact to provide the target damping force of the rotating shaft device;

[0032] Wherein, there is at least one first section and at least one second section along the axial direction of the first connecting member and the second connecting member. The first section has a part of the second connecting member sleeved on the first connecting member, and the second section has another part of the second connecting member sleeved on the first connecting member.

[0033] The first section provides a first damping force for the rotation of the first connecting member relative to the second connecting member, and the second section provides a second damping force for the rotation of the first connecting member relative to the second connecting member. The second damping force is less than the first damping force, and the sum of the first damping force and the second damping force is the target damping force. The cross-sectional area in the radial direction at any position in the second section is smaller than the cross-sectional area in the radial direction at any position in the first section.

[0034] In some embodiments, both the first section and the second section are located on one of the first body or the second body of the electronic device, and the second section is disposed close to the frame of the first body or the second body. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present application will become readily understood. In the drawings, several embodiments of the present application are shown by way of illustration and not limitation, and identical or corresponding reference numerals designate identical or corresponding parts, in which:

[0036] Figure 1 Schematically shows a schematic structural diagram of a rotating shaft device;

[0037] Figure 2 Schematically shows Figure 1 An isometric schematic diagram of the rotating shaft device;

[0038] Figure 3 Schematically shows a schematic structural diagram of another rotating shaft device;

[0039] Figure 4 Schematically shows Figure 3 An isometric schematic diagram of the rotating shaft device;

[0040] Figure 5 Schematically shows a schematic structural diagram in which both the first section and the second section are one section;

[0041] Figure 6 Schematically shows a schematic structural diagram in which the first section is one section and the second section is two sections;

[0042] Figure 7 Schematically shows a schematic structural diagram in which the first section is two sections and the second section is one section;

[0043] Figure 8 Schematically shows a schematic structural diagram in which both the first section and the second section are multiple sections;

[0044] Figure 9 Schematically shows a schematic diagram of the assembly of a first connecting member and a second connecting member;

[0045] Figure 10 Schematically shows another schematic diagram of the assembly of a first connecting member and a second connecting member;

[0046] Figure 11 Schematically shows still another schematic diagram of the assembly of a first connecting member and a second connecting member;

[0047] Figure 12Schematically shows a schematic diagram of the assembly of a first connecting member and a second connecting member;

[0048] Figure 13 Schematically shows a schematic diagram of the structure of an electronic device from a first perspective;

[0049] Figure 14 Schematically shows a schematic diagram of the structure of an electronic device from a second perspective;

[0050] Figure 15 Schematically shows Figure 14 A partial enlarged view of the structure of the electronic device.

[0051] Explanation of the reference numerals in the drawings:

[0052] 00. Rotating shaft device; 10. First connecting member; 20. Second connecting member; 30. First section; 40. Second section; 50. First body; 60. Second body. Detailed implementation manners

[0053] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0054] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which this application belongs.

[0055] Hereinafter, specific embodiments of the present application will be described with reference to the drawings; however, it should be understood that the described embodiments are only examples of the present application, and it can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details from obscuring the present application. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but are merely used as a basis for the claims and a representative basis for teaching those skilled in the art to use the present application in substantially any suitable detailed structure in a variety of ways.

[0056] This specification may use the phrase "in one embodiment", "in another embodiment", "in yet another embodiment" or "in other embodiments", which may each refer to one or more of the same or different embodiments according to the present application.

[0057] In order to make the connection part between the first body and the second body of the electronic device meet the requirements of the product appearance being thin, light and simple, while having sufficient damping force, so that when the first body and the second body of the electronic device are unfolded at any angle, they can remain relatively stable, and when the electronic device is in use, the first body and the second body do not shake relatively.

[0058] As described in the background art, by reducing the overall diameter size of the hinge structure, the appearance of the electronic device product can be made thinner and lighter.

[0059] However, the inventors of the present application found that since the overall diameter size of the hinge structure is reduced, although the appearance of the electronic device is made thinner and lighter, it will cause insufficient damping force provided by the hinge structure, and it is impossible to provide stable support for the first body of the electronic device relative to the second body when unfolded, and relative shaking is likely to occur between the first body and the second body during use.

[0060] In an embodiment of the present disclosure, a rotating shaft device is provided. As Figures 1-4 shown, the rotating shaft device proposed by the present disclosure includes:

[0061] A first connecting member 10, which is used to connect with one of the first body 50 or the second body 60 of the electronic device;

[0062] A second connecting member 20, which is sleeved on at least a part of the outside of the first connecting member 10 and is used to connect with the other of the first body 50 or the second body 60 of the electronic device;

[0063] The first connecting member 10 and the second connecting member 20 can rotate relative to each other, and the first connecting member 10 and the second connecting member 20 are in frictional contact to provide the target damping force of the rotating shaft device 00;

[0064] Wherein, there is at least one first section 30 and at least one second section 40 along the axial direction of the first connecting member 10 and the second connecting member 20. The first section 30 has a part of the second connecting member 20 sleeved on the first connecting member 10, and the second section 40 has another part of the second connecting member 20 sleeved on the first connecting member 10. The first section 30 provides a first damping force for the first connecting member 10 to rotate relative to the second connecting member 20, and the second section 40 provides a second damping force for the first connecting member 10 to rotate relative to the second connecting member 20. The second damping force is less than the first damping force, and the sum of the first damping force and the second damping force is the target damping force. The cross-sectional area in the radial direction at any position in the second section 40 is smaller than the cross-sectional area in the radial direction at any position in the first section 30.

[0065] It can be understood that the electronic device can be a laptop computer, a foldable smartphone, a flip phone, etc. Taking the laptop computer as an example, the first body 50 can be the screen end, and the second body 60 can be the system end. The first body 50 can be unfolded relative to the second body 60 and maintain a stable state. Taking the foldable smartphone as an example, the first body 50 is a fixed part of the foldable smartphone, and the second body 60 can be another part corresponding to the first body 50 and foldable in the foldable smartphone.

[0066] When the first connecting member 10 is connected to the screen end, the second connecting member 20 can be connected to the system end; when the first connecting member 10 is connected to the system end, the second connecting member 20 can be connected to the screen end.

[0067] It can be understood that the first connecting member 10 and the second connecting member 20 can rotate relative to each other and are in frictional contact. That is, the first connecting member 10 and the second connecting member 20 are two mutually connected components in a mechanical structure. These two components can rotate relative to each other, and during the relative rotation, friction can be generated through mutual contact between them. In other words, the frictional contact between the first connecting member 10 and the second connecting member 20 can be the friction force generated by direct contact and mutual pressure between the two connecting members to maintain the connection stability. Among them, the frictional contact can be point contact, line contact, surface contact, etc.

[0068] The first connecting member 10 can be understood as a rod-shaped member with a certain axial length. The shape of the radial cross-section of the first connecting member 10 can be circular, elliptical, or an irregular geometric shape with rounded edges.

[0069] It can be understood that the first connecting member 10 can be a shaft rod. The shaft rod can be a stepped shaft rod, a conical or frustum-shaped shaft rod formed by changing the diameter along the axis; the shaft rod can also be a cylindrical shaft rod with a constant diameter along the axis.

[0070] The second connecting member 20 can be a hollow cylindrical member, and the contour of the hollow inside the cylindrical member can be similar to or adapted to the outer contour of the first connecting member 10. It can be understood that the second connecting member 20 can be a bushing, and the thickness of the side wall of the bushing can change along the axis to form a stepped bushing, a conical or frustum-shaped bushing, etc. Among them, the bushing can be sleeved on the outside of the shaft rod, and the bushing can completely cover the shaft rod along the axis, or only cover a part of the shaft rod.

[0071] When the second connecting member 20 wraps around the first connecting member 10, frictional contact occurs between the outer sidewall of the first connecting member 10 and the inner sidewall of the second connecting member. The reason for the frictional contact can be that there is a rough contact surface between the outer sidewall of the first connecting member 10 and the inner sidewall of the second connecting member, so that friction is generated during relative rotation to form the target damping force. The reason for the frictional contact can also be that the second connecting member and the first connecting member 10 are press-fitted with interference. The diameter of the first connecting member 10 is slightly larger than the inner diameter of the second connecting member 20, so that the second connecting member 20 presses against the sidewall of the first connecting member 10 to form a wrapping extrusion force, and the target damping force is formed during their relative rotation. The target damping force can satisfy that when the first body 50 and the second body 60 of the electronic device are unfolded at any angle, they remain relatively stable, and when the electronic device is in use, the first body 50 and the second body 60 do not shake relatively.

[0072] Among them, the target damping force can be understood as the ideal or expected damping force value set to meet specific dynamic performance and stability requirements. This damping force is used to describe the damping characteristics when the first connecting member 10 and the second connecting member 20 interact with each other, especially when the two connecting members interact through frictional contact.

[0073] It can be understood that the second connecting member 20 wraps around the first connecting member 10 and can rotate relative to form a rotating shaft device 00; the rotating shaft device 00 can include at least one first section 30 and at least one second section 40.

[0074] When the first section 30 of the rotating shaft device 00 is compared with the second section 40, the first section 30 refers to the part with a larger radial cross-sectional area in the rotating shaft structure, and this part is to provide a higher damping force, that is, the first damping force.

[0075] The second section 40 refers to the part with a smaller radial cross-sectional area in the rotating shaft structure, and this part is to provide a lower damping force, that is, the second damping force, and the area of the radial cross-section of the second section 40 is constantly smaller than the area of the radial cross-section of the first section 30.

[0076] Among them, the reason why the first damping force is greater than the second damping force can be that the first connecting member 10 and the second connecting member 20 located in the first section 30 have a larger contact area, so that the frictional force is correspondingly larger. Or the area of the radial cross-section of the second connecting member 20 located in the first section 30 is larger than the area of the radial cross-section of the second connecting member 20 in the second section 40, that is, the sidewall thickness is thicker, so as to provide a wrapping force for the first connecting member 10, so that the frictional force is correspondingly larger.

[0077] When the first section 30 is one section and the second section 40 is one section, in this case, the first section 30 and the second section 40 are arranged in sequence.

[0078] When the first section 30 is one section and the second section 40 is two sections, the second section 40 is respectively arranged on both sides of the first section 30;

[0079] When the first section 30 is two sections and the second section 40 is one section, the first section 30 is respectively arranged on both sides of the second section 40;

[0080] Wherein, the radial cross-sectional area at any position of the second section 40 is smaller than the radial cross-sectional area at any position of the first section 30.

[0081] It can be understood that there may be a height difference between the outer wall of the first section 30 and the outer wall of the second section 40, so that the rotating shaft device 00 constitutes a stepped rotating shaft;

[0082] There is a gently sloping height difference between the outer wall of the first section 30 and the outer wall of the second section 40, so that the first section 30 gradually transitions to the second section 40, thereby forming a conical or frustum-shaped rotating shaft.

[0083] In order to make the appearance of the electronic device product thin and light, and at the same time enable the rotating shaft device 00 to provide sufficient damping force to provide stable support when the first body 50 of the electronic device is unfolded relative to the second body 60.

[0084] In the present disclosure, the rotating shaft device 00 is set as the first section 30 and the second section 40, and the radial cross-sectional area of the second section 40 is smaller than the radial cross-sectional area of the first section 30. Since the radial cross-section of the second section 40 is reduced, the required assembly space is reduced, thereby saving the assembly space and improving the thin and light appearance of the electronic device product. The saved assembly space can also be used to make arc-shaped improvements to the frame and the hand-held part of the electronic device, thereby improving the appearance beauty and use comfort of the product. At the same time,

[0085] The first connecting member 10 and the second connecting member 20 of the first section 30 are in frictional contact to provide a part of the main damping force for maintaining stable support, and the first connecting member 10 and the second connecting member 20 of the second section 40 are in frictional contact to provide another part of the secondary damping force for maintaining stable support, which can meet all the damping forces required for the first body 50 and the second body 60 of the electronic device to be unfolded relative to each other and maintain stable support.

[0086] Such as Figures 5-8 As shown, in some embodiments, the first section 30 and the second section 40 can be one section, and the second section 40 can be located on one side of the first section 30; or

[0087] The first section 30 can be one section, the second section 40 can be two sections, and the second section 40 can be located on opposite sides of the first section 30; or

[0088] The first section 30 can be in two sections, the second section 40 can be in one section, and the first section 30 can be located on opposite sides of the second section 40; or

[0089] The first section 30 and the second section 40 can be in multiple sections, and the first section 30 and the second section 40 can be arranged in sequence. One end of each first section 30 can be provided with a second section 40, and one end of each second section 40 can be provided with a first section 30.

[0090] Among them, in one embodiment, the first section 30 and the second section 40 can be in one section, and the second section 40 can be located on one side of the first section 30. At this time, a stepped rotating shaft or a conical or frustum-shaped rotating shaft or a stepped conical shaft is formed, one of the above.

[0091] For the stepped rotating shaft, the area of the radial cross-section of the first section 30 can be constant, the area of the radial cross-section of the second section 40 can be constant, and the area of the radial cross-section of the first section 30 can be larger than the area of the radial cross-section of the second section 40, so that there can be a height difference between the outer side wall of the first section 30 and the outer side wall of the second section 40, so that the rotating shaft device 00 forms a stepped rotating shaft;

[0092] For the conical or frustum-shaped rotating shaft, the area of the radial cross-section of the second section 40 can gradually increase from the end far from the first section 30 to the end close to the first section 30, and the area of the radial cross-section of the first section 30 can gradually increase from the end of the first section 30 close to the second section 40 to the end far from the second section 40, and there is a gradual height difference between the outer side wall of the first section 30 and the outer side wall of the second section 40, so that the first section 30 can gradually transition to the second section 40, thereby forming a conical or frustum-shaped rotating shaft device 00.

[0093] For the stepped conical shaft, the area of the radial cross-section of the second section 40 can gradually increase from the end far from the first section 30 to the end close to the first section 30, and the area of the radial cross-section of the first section 30 can gradually increase from the end of the first section 30 close to the second section 40 to the end far from the second section 40, and there is a height difference between the outer side wall of the first section 30 and the outer side wall of the second section 40, so that two conical or frustum-shaped rotating shafts are spliced to form a stepped conical shaft. The rotating shaft device 00 in this embodiment can be arranged at intervals at both ends of the electronic device to jointly provide a damping force, so that the first body 50 and the second body 60 can be stably maintained at any angle.

[0094] Another embodiment is that the first section 30 is one section, and the second section 40 can be two sections. The second section 40 can be located on opposite sides of the first section 30. At this time, a rotating shaft device 00 with a wide middle and narrow ends is formed. Among them, the second section 40 can be a conical or frustum-shaped rotating shaft with a gradually increasing cross-sectional area in the radial direction from one end to the other; it can also be a cylindrical rotating shaft with a constant cross-sectional area in the radial direction. The rotating shaft device 00 in this embodiment can be arranged at the middle part where the first body 50 and the second body 60 of the electronic device are connected. For example, the connection structure between the screen and the keyboard base of a notebook computer usually adopts a similar structural design, so that the screen can be smoothly opened and closed and remain stable at any angle. The wider middle part can provide a greater damping force, while the narrower ends are convenient for assembly and reduce the overall thickness and the space required for assembly.

[0095] In yet another embodiment, the first section 30 can be two sections, and the second section 40 can be one section. The first section 30 is located on opposite sides of the second section 40; at this time, a rotating shaft device 00 with a narrow middle and wide ends is formed. Among them, the first section 30 at both ends can be a conical or frustum-shaped rotating shaft with a gradually increasing cross-sectional area in the radial direction from one end to the other; it can also be a cylindrical rotating shaft with a constant cross-sectional area in the radial direction. The rotating shaft device 00 in this embodiment can be arranged at the middle part where the first body 50 and the second body 60 of the electronic device are connected. For example, for the connection structure between the screen end and the system end of a notebook computer, since the notebook computer pursues thinness, lightness, and a simple appearance, the installation space left for the rotating shaft device 00 is small, but it still needs to meet the damping force for the screen end to flip relative to the system end so that it can be stable without shaking. The wider first section 30 on both sides can provide the main damping force, and the narrower second section 40 in the middle can meet the assembly requirements for a compact structure.

[0096] There is still another embodiment where both the first section 30 and the second section 40 are multiple sections, and the first section 30 and the second section 40 are arranged in sequence. One end of each first section 30 is provided with a second section 40, and one end of each second section 40 is provided with a first section 30. At this time, the first section 30 is a wide shaft and the second section 40 is a narrow shaft, and the wide shafts and the narrow shafts are alternately arranged. For example, the rotating shaft device 00 in this embodiment has applications in devices such as notebook computers, folding screen mobile phones, or tablet computers, and may adopt a design with alternating wide shafts and narrow shafts to ensure that the rotating shaft device 00 remains stable at different angles, and at the same time, it can also reduce the gap of the rotating shaft device 00 in the closed state.

[0097] However, the present application is not limited to this, that is, those skilled in the art can adjust or set according to specific requirements.

[0098] Such as Figures 1-8As shown, in some embodiments, the axial length of at least one second segment portion 40 is less than the axial length of at least one first segment portion 30.

[0099] Herein, the axial length refers to the length in the extending direction along the central axis of the rotating shaft device 00. The longer the axial length of the rotating shaft device 00, the greater the damping force provided. The first segment portion 30 can be one segment, and the second segment portion 40 can be one segment. Then, the axial length of the second segment portion 40 is less than the axial length of the first segment portion 30, and the damping force of the first segment portion 30 is greater than that of the second segment portion 40, so that the first segment portion 30 provides the main damping force for the stable support in the unfolded state of the first body 50 and the second body 60. And when the rotating shaft device 00 is assembled to the first body 50 or the second body 60 of the electronic device, the second segment portion 40 is closer to the frame of the first body 50 or the second body 60 than the first segment portion 30. The area of the radial cross-section of the second segment portion 40 is less than the area of the radial cross-section of the first segment portion 30, and the axial length of the second segment portion 40 is also less than the axial length of the first segment portion 30, so that the second segment portion 40 can save the assembly space and realize the thin and light appearance of the electronic device.

[0100] The first body 50 The first body 50 However, the present application is not limited thereto, that is, those skilled in the art can adjust or set according to specific requirements.

[0101] Such as Figures 9-11 As shown, in some embodiments, the areas of the radial cross-sections of the first segment portion 30 and the second segment portion 40 of the first connecting member 10 can be equal, and the area of the radial cross-section of the first segment portion 30 of the second connecting member 20 can be greater than the area of the radial cross-section of the second segment portion 40; or,

[0102] The area of the radial cross-section of the first segment portion 30 of the first connecting member 10 can be greater than the area of the radial cross-section of the second segment portion 40, and the areas of the radial cross-sections of the first segment portion 30 and the second segment portion 40 of the second connecting member 20 can be equal; or,

[0103] The area of the radial cross-section of the first segment portion 30 of the first connecting member 10 can be greater than the area of the radial cross-section of the second segment portion 40, and the area of the radial cross-section of the first segment portion 30 of the second connecting member 20 can be greater than the area of the radial cross-section of the second segment portion 40.

[0104] In one embodiment, such as Figure 9The first connecting member 10 shown by the dashed line portion is a shaft rod with a constant radial cross-sectional area; the second connecting member 20 can have a constant radial cross-sectional area for the first section 30 and a constant radial cross-sectional area for the second section 40, and the radial cross-sectional area of the first section 30 is greater than the radial cross-sectional area of the second section 40, so that there can be a height difference between the outer side wall of the first section 30 and the outer side wall of the second section 40. The wall thickness of the first section 30 of the second connecting member 20 is greater than the wall thickness of the second section 40, providing a wrapping force for the first connecting member 10 to form a first damping force during relative rotation.

[0105] As Figure 11 shown, the first connecting member 10 can have a constant radial cross-sectional area shown by the dashed line portion, and the second connecting member 20 can also have a radial cross-sectional area of the second section 40 that gradually increases from one end away from the first section 30 to the end closer to the other first section 30, and the radial cross-sectional area of the first section 30 gradually increases from the end of the first section 30 close to the second section 40 to the end away from the second section 40, and there is a gradual height difference between the outer side walls at the connection between the outer side wall of the first section 30 and the second section 40, so that the first section 30 gradually transitions to the second section 40, thereby forming a second connecting member 20 in the shape of a cone or a frustum of a cone.

[0106] In another embodiment, as Figure 10 shown by the dashed line portion, the radial cross-sectional area of the first section 30 of the first connecting member 10 is greater than the radial cross-sectional area of the second section 40, and the radial cross-sectional areas of the first section 30 and the second section 40 of the second connecting member 20 are equal. In this case, there can be a height difference at the connection between the first section 30 and the second section 40 of the first connecting member 10, forming a stepped first connecting member 10; or, the first section 30 of the first connecting member 10 gradually transitions to the second section 40 to form a first connecting member 10 in the shape of a frustum of a cone or a cone.

[0107] Wherein, the second connecting member 20 is wrapped outside the first connecting member 10 and has a constant wall thickness, and the inner diameter profile of the second connecting member 20 is adapted to the outer profile of the first connecting member 10.

[0108] In yet another embodiment, the radial cross-sectional area of the first section 30 of the first connecting member 10 can be greater than the radial cross-sectional area of the second section 40, and the radial cross-sectional area of the first section 30 of the second connecting member 20 can be greater than the radial cross-sectional area of the second section 40.

[0109] In this case, there may be a height difference at the connection between the first section 30 and the second section 40 of the first connecting member 10, forming a stepped first connecting member 10; alternatively, the first section 30 of the first connecting member 10 gradually transitions to the second section 40 to form a frustum or conical first connecting member 10.

[0110] There may be a height difference at the connection between the first section 30 and the second section 40 of the second connecting member 20, forming a stepped second connecting member 20; alternatively, the first section 30 of the second connecting member 20 gradually transitions to the second section 40 to form a frustum or conical second connecting member 20.

[0111] In the rotating shaft device 00, the stepped radial cross-sectional change or gradually decreasing radial cross-sectional change of the first section 30 and the second section 40 mentioned in the above embodiments can achieve different damping force effects.

[0112] For example, in the hinge design of a foldable smartphone or laptop, the first section 30 provides the main damping force to ensure that the device remains stable at a specific angle, while the second section 40 provides a secondary damping force to achieve a more relaxed adjustment of the screen end angle.

[0113] It should be noted that the stepped shape, cone or frustum shape formed by the above first connecting member 10 and second connecting member 20 through the change of the radial cross-section can be achieved by machining processes such as turning, grinding, and CNC.

[0114] However, the present application is not limited to this, that is, those skilled in the art can adjust or set according to specific requirements.

[0115] As Figure 9 and Figure 11 shown, in some embodiments, the areas of the radial cross-sections of the first connecting member 10 shown by the dashed line part may be equal;

[0116] The area of the radial cross-section of the second connecting member 20 may gradually decrease from the first section 30 to the second section 40, so that the second connecting member 20 is in the shape of a cone or frustum; or, it may be stepped down from the first section 30 to the second section 40, so that the second connecting member 20 is in a stepped shape.

[0117] It can be understood that the first connecting member 10 is a shaft rod with a constant radial cross-sectional area; the wall thickness of the outer side wall of the second connecting member 20 gradually decreases from the first section 30 to the second section 40. The gradual decrease can be understood as the side wall thickness of the second connecting member 20 gradually thinning from one end to the other end, thereby gradually reducing the cross-sectional area of the radial cross-section of the second connecting member 20.

[0118] For example, the wall thickness at one end of the first section 30 away from the second section 40 can be 1 mm, the wall thickness at one end of the second section 40 away from the first section 30 can be 0.7 mm, and the second connecting member 20 can gradually decrease from one end of the first section 30 to one end of the second section 40.

[0119] It is also possible that the wall thickness of the outer side wall of the second connecting member 20 can be constant from the wall thickness of the first section 30, the wall thickness of the second section 40 can be constant, and is less than the wall thickness of the first section 30, thereby forming a stepped second connecting member 20 in sequence.

[0120] For the above two reduction methods of the second connecting member 20, both can reduce the area of the radial cross-section of the rotating shaft device 00 and save the assembly space.

[0121] However, the present application is not limited thereto, that is, those skilled in the art can adjust or set according to specific requirements.

[0122] Such as Figure 10 and Figure 12 As shown, in some embodiments, the area of the radial cross-section of the second connecting member 20 can be equal; the area of the radial cross-section of the first connecting member 10 shown by the dotted line in the figure can also gradually decrease from the first section 30 to the second section 40, so that the first connecting portion is in a conical or frustum shape; or, it can be stepped from the first section 30 to the second section 40, so that the first connecting member 10 is in a stepped shape.

[0123] Specifically, the gradual reduction can mean that the diameter of the first connecting member 10 gradually decreases from one end to the other end, presenting a conical or frustum shape in the length direction; the stepped reduction can mean that the diameter of the first connecting member 10 presents a stepped change along its length direction, which can be understood that the first connecting member 10 is divided into several sections, the diameter of each section is different, and a step is formed between the adjacent first section 30 and the second section 40.

[0124] When the first connecting member 10 is in a conical or frustum shape or a stepped shape, the wall thickness of the second connecting member 20 can be constant, sleeved outside the first connecting member 10, and by reducing the area of the radial cross-section of the first connecting member 10, the overall radial cross-sectional area of the rotating shaft device 00 is reduced. However, the present application is not limited thereto, that is, those skilled in the art can adjust or set according to specific requirements.

[0125] In some embodiments, the areas of the radial cross-sections of the first connecting member 10 and the second connecting member 20 may both gradually decrease from the first section 30 to the second section 40, so that both the first connecting member 10 and the second connecting member 20 are in the shape of a cone or a frustum of a cone; or, the areas of the radial cross-sections of the first connecting member 10 and the second connecting member 20 may both be stepped down from the first section 30 to the second section 40, so that both the first connecting member 10 and the second connecting member 20 are in a stepped shape.

[0126] It can be understood that the diameter of the first connecting member 10 may gradually taper from one end located at the first section 30 to the other end located at the second section 40 along the length direction, and the wall thickness of the second connecting member 20 may gradually become thinner from one end located at the first section 30 to the other end located at the second section 40 along the length direction, so that the first connecting member 10 and the second connecting member 20 are in the shape of a cone or a frustum of a cone. Or,

[0127] The diameter of the first connecting member 10 may present a stepped change along the length direction from one end located at the first section 30 to the other end located at the second section 40. It can be understood that the first connecting member 10 is divided into several segments, and the diameters of each segment are different, and a step is formed between the adjacent first section 30 and the second section 40. Similarly, the side wall thickness of the second connecting member 20 may present a stepped change along the length direction from one end located at the first section 30 to the other end located at the second section 40. It can be understood that the second connecting member 20 is divided into several segments, and the side wall thicknesses of each segment are different, and a step is formed between the adjacent first section 30 and the second section 40.

[0128] Through the above two reduction methods, the area of the radial cross-section of the rotating shaft device 00 can be reduced to save the assembly space. However, the present application is not limited to this, that is, those skilled in the art can adjust or set according to specific requirements. It can be understood that in some embodiments, there may be two first connecting members 10, and the axes of the two first connecting members 10 may satisfy the parallel condition; there are two second connecting members 20, which are respectively sleeved outside the first connecting members 10.

[0129] It can be understood that the axes of the two first connecting members 10 satisfying the parallel condition means that the axis directions of the two first connecting members 10 are the same or substantially the same, but do not coincide. On some electronic devices, it is necessary to connect the display end and the system end through two parallel rotating shafts. To achieve the thinness and lightness of such electronic products and improve the appearance of the products, the rotating shaft device 00 mentioned above is adopted, and the axes of the two groups of rotating shaft devices 00 are in a parallel state. The two groups of rotating shaft devices 00 provide sufficient damping force for the opening and closing process of the screen end and the system end, and support the stable unfolding of the screen end and the system end at any angle. However, the present application is not limited to this, that is, those skilled in the art can adjust or set according to specific requirements.

[0130] Such asFigures 9-12 As shown, in some embodiments, the first connecting member 10 and the second connecting member 20 are press-fitted, and an opening is provided along the length direction on the side wall of the second connecting member 20.

[0131] Specifically, the diameter of the first connecting member 10 is greater than the inner diameter of the second connecting member 20, and the difference range therebetween can be 0.05 mm - 0.1 mm, or can also be 0.02 mm - 0.04 mm. So that the second connecting member 20 applies an extrusion and wrapping force to the first connecting member 10.

[0132] Wherein, the opening divides the second connecting member 20 into a first wrapping member and a second wrapping member. The first wrapping member and the second wrapping member can be circular arcs arranged oppositely, and the arc surfaces are arranged back to back. The first wrapping member and the second wrapping member have toughness and elasticity, so that the first wrapping member and the second wrapping member clamp and wrap the first connecting member 10. However, the present application is not limited thereto, that is, those skilled in the art can adjust or set according to specific requirements.

[0133] Such as Figures 1-4 As shown, in some embodiments, the first connecting member 10 further includes a first mounting member, and the second connecting member 20 further includes a second mounting member.

[0134] Specifically, the first mounting member can be a plate-shaped member or can also be a block-shaped member, and is arranged on the side of the first connecting member 10. An installation hole is provided in the first mounting member, which is convenient for installation with the first body 50 or the second body 60 of the electronic device. The second mounting member can be a plate-shaped member or can also be a block-shaped member, and is arranged on the side of the second connecting member 20. An installation hole is provided in the second mounting member, which is convenient for installation with the first body 50 or the second body 60 of the electronic device. However, the present application is not limited thereto, that is, those skilled in the art can adjust or set according to specific requirements.

[0135] Such as Figures 13-14 As shown, in some embodiments, the present application further provides an electronic device, which may include:

[0136] A first body 50, a second body 60 and a rotating shaft device 00. The first body 50 and the second body 60 can rotate relative to each other through the rotating shaft device 00;

[0137] The rotating shaft device 00 may include:

[0138] A first connecting member 10, which is used to connect with one of the first body 50 or the second body 60 of the electronic device;

[0139] A second connecting member 20, which is sleeved on at least part of the outside of the first connecting member 10, and is used to connect with the other of the first body 50 or the second body 60 of the electronic device;

[0140] The first connecting member 10 and the second connecting member 20 can rotate relative to each other, and the first connecting member 10 and the second connecting member 20 are in frictional contact to provide the target damping force of the rotating shaft device 00;

[0141] Wherein, along the axial direction of the first connecting member 10 and the second connecting member 20, there may be at least one first section 30 and at least one second section 40. The first section 30 has a part of the second connecting member 20 sleeved on the first connecting member 10, and the second section 40 has another part of the second connecting member 20 sleeved on the first connecting member 10.

[0142] The first section 30 can provide a first damping force for the first connecting member 10 to rotate relative to the second connecting member 20, and the second section 40 can provide a second damping force for the first connecting member 10 to rotate relative to the second connecting member 20. The second damping force is less than the first damping force, and the sum of the first damping force and the second damping force is the target damping force. The radial cross-sectional area at any position in the second section 40 is smaller than the radial cross-sectional area at any position in the first section 30.

[0143] Specifically, the electronic device can be a laptop computer, the first body 50 is the screen end, and the second body 60 is the system end. The first connecting member 10 is arranged at the screen end, and the second connecting member 20 is arranged at the system end. The system end and the screen end are opened and closed through the relative rotation of the first connecting member 10 and the second connecting member 20.

[0144] The electronic device can be a folding screen mobile phone, a tablet computer or a dual-screen laptop computer. The first connecting member 10 and the second connecting member 20 are respectively arranged on two adjacent parts of the display end. When the first connecting member 10 and the second connecting member 20 rotate relative to each other, the screen is folded along the middle. However, the present application is not limited to this, that is, those skilled in the art can adjust or set according to specific requirements.

[0145] Such as Figure 15 As shown, in some embodiments, both the first section 30 and the second section 40 are located in one of the first body 50 or the second body 60 of the electronic device, and the second section 40 is arranged close to the frame of the first body 50 or the second body 60.

[0146] The first section 30 and the second section 40 of the rotating shaft device 00 can be located in the first body 50 of the electronic device, or can also be located in the second body 60 of the electronic device. Among them, the second section 40 with a smaller radial cross-sectional area is arranged close to the frame of the first body 50 or the second body 60, so that a smaller assembly space is left in the first body 50 or the second body 60 to meet the installation of the rotating shaft device 00, and one of the second connecting member 20 and the first body 50 or the second body 60 is fixed, and one end of the first connecting member 10 close to the first section 30 is fixed to the other one of the first body 50 or the second body 60.

[0147] The second section 40 of the rotating shaft device 00 is disposed close to the frame, which can not only meet the thin and light requirements of the appearance of electronic device products, but also cooperate with the ID chamfering design of the electronic device. By chamfering the edges, corners or sides of the product, such as Figure 15 As shown in, an arc-shaped ID chamfering process is performed on the outer side of the frame of the second body 60, making the frame of the second body 60 round, so as to create a more smooth and beautiful appearance and improve the feel of the product. The ID chamfering design is usually applied to the outer edge of the laptop computer shell, making the edge line of the laptop computer more smooth, increasing the aesthetic feeling of the product, and at the same time reducing the sharpness of the edge, making users feel more comfortable when holding or touching.

[0148] However, the present application is not limited thereto, that is, those skilled in the art can adjust or set according to specific requirements.

[0149] It should be noted that the above embodiments can exist alone or in combination. It should be understood that although the present application is described according to each embodiment, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0150] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present application, and all should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claimed rights.

Claims

1. A rotating shaft device, characterized in that: include: A first connecting member, used to connect to one of the first body or the second body of the electronic device; A second connecting member, sleeved on at least a portion of the outer side of the first connecting member, and used for connecting to the other of the first body or the second body of the electronic device; The first connecting member and the second connecting member are capable of relative rotation, and the first connecting member and the second connecting member are in frictional contact to provide a target damping force of the rotating shaft device; There are at least one first section and at least one second section along the axial direction of the first connecting member and the second connecting member, the first section has a part of the second connecting member sleeved on the first connecting member, and the second section has another part of the second connecting member sleeved on the first connecting member, The first section provides a first damping force for the first connecting member to rotate relative to the second connecting member, and the second section provides a second damping force for the first connecting member to rotate relative to the second connecting member, the second damping force is smaller than the first damping force, the sum of the first damping force and the second damping force is the target damping force, and the radial cross-sectional area at any position in the second section is smaller than the radial cross-sectional area at any position in the first section.

2. The rotating shaft device according to claim 1, characterized in that: The first section and the second section are both one section, and the second section is located on one side of the first section; or The first section is one section, the second section is two sections, and the second sections are located at two opposite sides of the first section; or The first section is divided into two sections, the second section is divided into one section, and the first section is located at two opposite sides of the second section; or The first section and the second section are both multi-section, and the first section and the second section are arranged in sequence, one end of each first section is provided with a second section, and one end of each second section is provided with a first section.

3. The rotating shaft device according to claim 2, characterized in that: The axial length of at least one of the second sections is smaller than the axial length of at least one of the first sections.

4. The rotating shaft device according to claim 1, characterized in that: The radial cross-sectional areas of the first section and the second section of the first connecting member are equal, and the radial cross-sectional area of ​​the first section of the second connecting member is larger than the radial cross-sectional area of ​​the second section; or, The radial cross-sectional area of ​​the first section of the first connecting member is larger than the radial cross-sectional area of ​​the second section, and the radial cross-sectional areas of the first section and the second section of the second connecting member are equal; or, The radial cross-sectional area of ​​the first section of the first connecting member is larger than that of the second section, and the radial cross-sectional area of ​​the first section of the second connecting member is larger than that of the second section.

5. The rotating shaft device according to claim 4, characterized in that: The radial cross-sections of the first connecting members have equal areas; The area of ​​the radial cross section of the second connecting member gradually decreases from the first section to the second section, so that the second connecting member is conical or truncated cone-shaped; or, it decreases in steps from the first section to the second section, so that the second connecting member is stepped.

6. The rotating shaft device according to claim 4, characterized in that: The radial cross-sections of the second connecting members have equal areas; The area of ​​the radial cross section of the first connecting member is gradually reduced from the first section to the second section, so that the first connecting member is conical or truncated cone-shaped; or, it is steppedly reduced from the first section to the second section, so that the first connecting member is stepped.

7. The rotating shaft device according to claim 4, characterized in that: The radial cross-sectional areas of the first connecting member and the second connecting member both decrease gradually from the first section to the second section, so that the first connecting member and the second connecting member are both conical or truncated cone-shaped; or, the radial cross-sectional areas of the first connecting member and the second connecting member both decrease in steps from the first section to the second section, so that the first connecting member and the second connecting member are both stepped.

8. The rotating shaft device according to any one of claims 1 to 7, characterized in that: There are two first connecting members, and the axes of the two first connecting members meet the parallel condition; There are two second connecting members, which are respectively sleeved on the outer sides of the first connecting members.

9. An electronic device, characterized in that: include: A first body, a second body and a rotating shaft device, wherein the first body and the second body can rotate relative to each other through the rotating shaft device; The rotating shaft device comprises: A first connecting member, used to connect to one of the first body or the second body of the electronic device; A second connecting member, sleeved on at least a portion of the outer side of the first connecting member, and used for connecting to the other of the first body or the second body of the electronic device; The first connecting member and the second connecting member are capable of relative rotation, and the first connecting member and the second connecting member are in frictional contact to provide a target damping force of the rotating shaft device; There are at least one first section and at least one second section along the axial direction of the first connecting member and the second connecting member, the first section has a part of the second connecting member sleeved on the first connecting member, and the second section has another part of the second connecting member sleeved on the first connecting member, The first section provides a first damping force for the first connecting member to rotate relative to the second connecting member, and the second section provides a second damping force for the first connecting member to rotate relative to the second connecting member, the second damping force is smaller than the first damping force, the sum of the first damping force and the second damping force is the target damping force, and the radial cross-sectional area at any position in the second section is smaller than the radial cross-sectional area at any position in the first section.

10. The electronic device according to claim 9, characterized in that: The first section and the second section are both located in one of the first body or the second body of the electronic device, and the second section is arranged close to the frame of the first body or the second body.

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