Rotating shaft apparatus and electronic device

Abstract

Embodiments of the present application relate to the technical field of electronic devices, and provide a rotating shaft apparatus and an electronic device. The rotating shaft apparatus comprises a first rotating shaft, a second rotating shaft, and a linkage mechanism. The linkage mechanism comprises a first rod piece, a second rod piece, and a third rod piece, wherein a first end of the first rod piece is movably connected to a first end of the second rod piece, a second end of the first rod piece is movably connected to a first end of the third rod piece, a third end of the first rod piece is used for being fixedly connected to a foot pad, and a second end of the second rod piece is connected to the second rotating shaft. The first rotating shaft is transmittingly connected to the second rotating shaft, the first rotating shaft is used for receiving a driving force, and in the rotating process of the first rotating shaft, the second rotating shaft is used for driving the first rod piece to move linearly by means of the second rod piece under the driving of the first rotating shaft. The rotating shaft apparatus and the electronic device provided by the embodiments of the present application can improve the heat dissipation capability of the electronic device.

Description

Rotating shaft device and electronic device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on December 26, 2023, with application number 202311821217.4 and application name “Hinge Device and Electronic Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The embodiments of the present application relate to the technical field of electronic equipment, and in particular to a rotating shaft device and an electronic device. Background Art

[0003] Currently, laptop computers have weak heat dissipation capabilities, which prevents the heat generated by the laptop from being dissipated in a timely manner. This causes the laptop to overheat, resulting in a decrease in performance and an inability to meet user needs. Therefore, how to improve the heat dissipation capabilities of laptops has become an urgent problem to be solved. Summary of the Invention

[0004] The embodiments of the present application provide a hinge device and an electronic device, which can improve the heat dissipation capability of the electronic device.

[0005] In a first aspect, the present application provides a rotating shaft device comprising a first rotating shaft, a second rotating shaft, and a connecting rod mechanism. The connecting rod mechanism comprises a first rod, a second rod, and a third rod. The first end of the first rod is movably connected to the first end of the second rod, the second end of the first rod is movably connected to the first end of the third rod, the third end of the first rod is fixedly connected to the foot pad, and the second end of the second rod is connected to the second rotating shaft. The first rotating shaft is transmission-connected to the second rotating shaft, the first rotating shaft is configured to receive a driving force, and during rotation of the first rotating shaft, the second rotating shaft is configured to drive the foot pad to perform linear motion via the connecting rod mechanism under the drive of the first rotating shaft.

[0006] Because the first rod is fixedly connected to the foot pad, the second rotating shaft drives the foot pad to move linearly through the linkage mechanism, and the first rod and the foot pad move linearly synchronously. When the rotating shaft device is applied to an electronic device, after the first rotating shaft receives a driving force, the first rotating shaft drives the second rotating shaft to rotate, and the second rotating shaft rotates the second rod, and the second rod rotates the first rod to move linearly, and the first rod moves linearly while the third rod rotates. Because the second and third rods are respectively connected to the ends of the first rod, the linkage mechanism has a structure similar to a four-bar linkage, thereby improving the reliability and stability of the first rod's linear motion, and thereby improving the smoothness and stability of the foot pad's linear motion.

[0007] Furthermore, because the foot pad is fixedly connected to the first rod, the linear motion of the first rod drives the foot pad in parallel, thereby increasing the length of the foot pad extending from the electronic device. This, in turn, increases the space between the electronic device and the table supporting the electronic device, thereby enhancing the electronic device's heat dissipation capacity. Furthermore, because the foot pad is an existing component of the electronic device, adjusting the length of the foot pad extending from the electronic device improves the electronic device's heat dissipation capacity without detracting from its appearance. Furthermore, the hinge device does not restrict the thickness of the electronic device, allowing it to be reduced to meet thinner and lighter design requirements.

[0008] In a possible embodiment, the connecting rod mechanism further includes at least one fourth rod, and a fourth rod is provided on at least one of the opposite sides of the first rod, and opposite ends of each fourth rod are respectively rotatably connected to the second rod and the third rod.

[0009] When a fourth rod is provided on one of the two opposing sides of the first rod, the first, second, third, and fourth rods can form a stable parallelogram structure, further improving the smoothness and stability of the movement of the first rod. Alternatively, when a fourth rod is provided on each of the two opposing sides of the first rod, the second, third, and two fourth rods can form a stable parallelogram structure, further improving the smoothness and stability of the movement of the first rod.

[0010] In addition, the second rod and the third rod are connected by the fourth rod, so that the second rod can drive the third rod to rotate through the fourth rod, and the third rod can also drive the first rod to move in a straight line, thereby making the overall force of the first rod uniform and making the movement of the first rod more stable and smooth.

[0011] In a possible implementation, one of the first rod and the second rod is provided with a first strip-shaped hole, and a portion of the other rod is movably disposed inside the first strip-shaped hole.

[0012] The rotating shaft device provided in the embodiment of the present application is provided with a first strip hole on the first rod or the second rod, so that the second rod can drive the first rod to move linearly while rotating.

[0013] In one possible embodiment, the first rod is provided with a first strip-shaped hole, and the second rod includes a first branch at least partially disposed within the first strip-shaped hole. This arrangement can simplify the structures of the first and second rods while still enabling the second rod to drive the first rod to move linearly.

[0014] In a possible implementation, one of the first rod and the third rod is provided with a second strip-shaped hole, and a portion of the other rod is movably disposed inside the second strip-shaped hole.

[0015] The hinge device provided in the embodiments of the present application, by providing a second strip-shaped hole on the first or third rod, can prevent the third rod from interfering with the linear motion of the first rod. Furthermore, when the third rod is connected to the second rod via the fourth rod, the third rod can also drive the first rod in linear motion through the second strip-shaped hole, thereby improving the smoothness and reliability of the first rod's motion.

[0016] In one possible embodiment, the first rod is provided with a second strip-shaped hole, and the third rod includes a second branch at least partially disposed within the second strip-shaped hole. This arrangement simplifies the structures of the first and third rods while enabling linear motion of the first rod. Furthermore, the connection between the second and third rods can be simplified.

[0017] In a possible embodiment, the rotating shaft device further includes a support member, the support member includes a guide portion connected to the first rod member, and the guide portion is used to enable the first rod member to perform linear motion.

[0018] When the second rod drives the first rod to move, the first rod is guided by the guide portion so that the first rod can move in a straight line.

[0019] In a possible implementation manner, one of the guide portion and the first rod includes a guide hole, and the other includes a protrusion at least partially disposed in the guide hole.

[0020] When the second rod drives the first rod to move, the protrusion slides with the inner wall of the guide hole, so that the inner wall of the guide hole can guide the protrusion to move linearly, and then the guide part can guide the first rod to move linearly.

[0021] In a possible implementation, the guide portion is provided with a plurality of guide holes, the first rod includes a plurality of protrusions, and each protrusion corresponds to a guide hole.

[0022] The rotating shaft device provided in the embodiment of the present application guides the first rod member to perform linear motion by cooperating with multiple guide holes and multiple protrusions, which can improve the accuracy of the linear motion of the first rod member.

[0023] In a possible implementation manner, there are two guide portions, and the first rod is disposed between the two guide portions.

[0024] The rotating shaft device provided in the embodiment of the present application guides the first rod to move in a straight line through two guiding parts, which can not only further improve the guiding effect of the first rod, but also prevent the first rod from moving in a direction perpendicular to the arrangement direction of the two guiding parts, thereby improving the reliability of the movement of the first rod.

[0025] In a possible embodiment, the guide portion is disposed between the second rod and the third rod. The space between the second rod and the third rod can be utilized to arrange the guide portion, which can improve the integration of the rotating shaft device and facilitate miniaturization of the rotating shaft device.

[0026] In a possible implementation manner, the support member is further provided with an avoidance gap, and the avoidance gap is used to avoid the first rotating shaft, the second rotating shaft, the first rod and the second rod.

[0027] The rotating shaft device provided in the embodiment of the present application avoids the first rotating shaft, the second rotating shaft, the first rod and the second rod by avoiding the gap, so as to avoid the interference of the support member with the movement of the first rotating shaft, the second rotating shaft, the first rod and the second rod, thereby improving the integration of the rotating shaft device and facilitating the miniaturization of the rotating shaft device.

[0028] In a possible embodiment, the support member is further provided with at least one of a first groove, a second groove, a third groove and a fourth groove, the first groove is used to avoid the first rod, the second groove is used to avoid the second rod, the third groove is used to avoid the third rod, and the fourth groove is used to avoid the fourth rod.

[0029] The rotating shaft device provided in the embodiment of the present application is provided with at least one of the first groove, the second groove, the third groove and the fourth groove on the support member, so that the support member can avoid the first rod member, the second rod member, the third rod member and the fourth rod member, thereby improving the integration of the rotating shaft device while satisfying the movement of the connecting rod mechanism, and is conducive to the miniaturization of the rotating shaft device.

[0030] In a possible implementation, the support member further includes a first stop portion, and the first rotating shaft further includes a second stop portion, and the first stop portion is configured to abut against the second stop portion to limit the rotation of the first rotating shaft.

[0031] The rotating shaft device provided in the embodiment of the present application can prevent the first rotating shaft from continuing to rotate by abutting the first stop portion against the second stop portion, thereby limiting the angular range within which the first rotating shaft can rotate.

[0032] In a possible implementation, the first rotating shaft includes a first tooth portion, and the second rotating shaft includes a second tooth portion. During the engagement of the first tooth portion and the second tooth portion, the second rotating shaft drives the first rod member to perform linear motion via the second rod member.

[0033] During rotation of the first rotating shaft, the first tooth portion engages with the second tooth portion, allowing the first rotating shaft to drive the second rotating shaft to rotate, thereby transmitting driving force to the second rotating shaft, causing the second rotating shaft to drive the first rod member to move linearly. Furthermore, by controlling the timing of the engagement of the first and second tooth portions, the distance of the first rod member's linear movement can be controlled, thereby controlling the length of the foot pad extending from the electronic device. Furthermore, when the first and second tooth portions are not engaged, rotation of the first rotating shaft does not drive rotation of the second rotating shaft, thereby expanding the application range of the first rotating shaft.

[0034] In one possible embodiment, the first rotating shaft includes a first protrusion, and the second rotating shaft includes a second protrusion. The first protrusion is provided with a first notch. When the first rotating shaft drives the second rotating shaft to rotate, the first notch is used to avoid the second protrusion, thereby preventing the first and second protrusions from interfering with each other, thereby preventing the first and second rotating shafts from being unable to rotate, and further ensuring that the first rotating shaft can transmit the driving force to the second rotating shaft.

[0035] In one possible embodiment, the first rotating shaft includes a first protrusion, and the second rotating shaft includes a second protrusion. When the first rotating shaft is not rotating the second rotating shaft, the second notch is configured to cooperate with the first protrusion to prevent the second rotating shaft from rotating in the opposite direction relative to the first rotating shaft. The cooperation between the first protrusion and the second notch allows the first rotating shaft to rotate while the second rotating shaft does not rotate, thereby preventing the first rod from retracting due to the reverse rotation of the second rotating shaft and maintaining the length of the foot pad extending from the electronic device.

[0036] In one possible embodiment, the second protrusion is further provided with a third notch. During rotation of the second shaft, the third notch is used to clear the first rod, thereby ensuring normal operation of the second shaft and the first rod. Furthermore, the distance between the second shaft and the first rod can be reduced, thereby reducing the size of the shaft assembly in the direction in which the second shaft and the first rod are aligned, thereby facilitating miniaturization of the shaft assembly.

[0037] In a possible implementation, the rotating shaft device further includes a foot pad, which is fixedly connected to the third end of the first rod.

[0038] A second aspect of the present application provides an electronic device comprising a first portion, a second portion, and a hinge device according to any one of the first aspects, wherein the first portion is fixedly connected to the first hinge of the hinge device, and the second portion is provided with an opening. The electronic device further comprises a foot pad fixedly connected to the first rod of the hinge device, wherein a portion of the foot pad is disposed outside the second portion through the opening. Alternatively, a portion of the foot pad of the hinge device is disposed outside the second portion through the opening.

[0039] When the electronic device is placed on the table, the first part rotates relative to the second part, causing the angle between the first part and the second part to gradually increase, thereby unfolding the electronic device. During the unfolding process, the first part drives the first rotating shaft to rotate, and the first rotating shaft can drive the foot pad to move linearly through the connecting rod mechanism and the second rotating shaft, so that the length of the foot pad extending from the electronic device increases, thereby increasing the space between the electronic device and the table, and further improving the heat dissipation capacity of the electronic device. In addition, the method of using the rotating shaft device in the first aspect to increase the length of the foot pad extending from the electronic device will not affect the appearance of the electronic device. In addition, the thickness of the electronic device can also be reduced, which is conducive to thinning design.

[0040] In a possible implementation, there are two rotating shaft devices, which are symmetrically arranged, and the first rod of each rotating shaft device is connected to a foot pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] FIG1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application;

[0042] FIG2 is a schematic diagram of an explosion of the electronic device in FIG1 ;

[0043] FIG3 is a schematic structural diagram of the electronic device in FIG1 in a closed state;

[0044] FIG4 is a schematic diagram of the electronic device in FIG1 when the deployment angle is N1°;

[0045] FIG5 is a schematic diagram of the electronic device in FIG1 when the unfolding angle is N°;

[0046] FIG6 is a schematic diagram of a first three-dimensional structure of a first rotating shaft device provided in an embodiment of the present application;

[0047] FIG7 is a second perspective structural diagram of the rotating shaft device in FIG6 ;

[0048] FIG8 is a schematic top view of the structure of the rotating shaft device in FIG6;

[0049] FIG9 is an exploded schematic diagram of the rotating shaft device in FIG6 ;

[0050] FIG10 is a schematic cross-sectional view at AA in FIG8 ;

[0051] FIG11 is a schematic top view of the first rod in FIG9 ;

[0052] FIG12 is a schematic diagram of the three-dimensional structure of the first rotating shaft and the second rotating shaft in FIG9;

[0053] FIG13 is a schematic structural diagram of the cooperation between the first rotating shaft and the second rotating shaft when the unfolding angle of the electronic device in FIG1 is 0°;

[0054] FIG14 is a schematic structural diagram of the first rotating shaft and the second rotating shaft when the unfolding angle of the electronic device in FIG1 is 30°;

[0055] FIG15 is a schematic structural diagram of the first rotating shaft and the second rotating shaft when the deployment angle of the electronic device in FIG1 is N1°;

[0056] FIG16 is a left side cross-sectional view of the section AA in FIG8 when the deployment angle is N1°;

[0057] FIG17 is a schematic diagram of the left side structure of the rotating shaft device when the deployment angle is N1°;

[0058] FIG18 is a schematic diagram of the structure of the first convex portion and the second convex portion when the deployment angle is 0°;

[0059] FIG19 is a schematic diagram of the structure of the first convex portion and the second convex portion when the deployment angle is N1°;

[0060] FIG20 is a schematic diagram of the structure of the first convex portion and the second convex portion when the deployment angle is N°;

[0061] FIG21 is a schematic left side cross-sectional view of the position BB in FIG8 when the deployment angle is 0°;

[0062] FIG22 is a schematic cross-sectional view of the right side of FIG8 at a deployment angle of N°;

[0063] FIG23 is a schematic left side view of the rotating shaft device in FIG8;

[0064] FIG24 is a schematic structural diagram of a second rotating shaft device provided in an embodiment of the present application;

[0065] FIG25 is an exploded schematic diagram of the torsion assembly in FIG24 ;

[0066] FIG26 is a schematic diagram of the three-dimensional structure of the connecting piece in FIG24 .

[0067] Description of reference numerals:

[0068] 100. Electronic equipment;

[0069] 200, first part; 210, display screen; 220, first housing;

[0070] 300, second part; 310, keyboard module; 320, second housing;

[0071] 400, foot pads;

[0072] 500, rotating shaft device;

[0073] 10. First rotating shaft; 11. First tooth portion; 12. First protrusion; 121. First notch; 13. Second stop portion; 14. First shaft portion; 15. Spline portion;

[0074] 20. Second rotating shaft; 21. Second tooth portion; 22. Second protrusion; 221. Second notch; 222. Third notch; 23. Second shaft portion;

[0075] 30. Connecting rod mechanism;

[0076] 31. First rod; 311. First strip hole; 312. Second strip hole; 313. Main body; 314. Fixing portion; 315. Protrusion;

[0077] 32. Second rod; 321. First branch; 322. First main body;

[0078] 33. Third rod; 331. Second branch; 332. Second main body;

[0079] 34. Fourth rod;

[0080] 40. Support member; 41. Guide portion; 411. Guide hole; 42. First stop portion; 43. Matching portion; 431. Matching hole; 44. First support member; 45. Second support member; 46. First supporting portion; 47. Second supporting portion;

[0081] 51. Avoidance gap; 52. First groove; 53. Second groove; 54. Third groove; 55. Fourth groove;

[0082] 60. Torque assembly; 61. Disc spring; 62. Fixing piece; 63. Gasket;

[0083] 70. Connectors;

[0084] Z, first direction; Y, second direction; X, third direction. DETAILED DESCRIPTION

[0085] In the related art, the heat dissipation capacity of laptop computers is weak, which prevents the heat generated by the laptop from being dissipated in time. This will cause the laptop temperature to be too high, resulting in a decrease in performance and failure to meet user needs. Therefore, how to improve the heat dissipation capacity of laptop computers has become an urgent problem to be solved.

[0086] In view of this, an embodiment of the present application provides a hinge device 500 and an electronic device 100. The hinge device 500 receives a driving force and drives the foot pad 400 to move linearly, so that the length of the foot pad 400 extending from the electronic device 100 can be increased, thereby increasing the space between the electronic device 100 and the table supporting the electronic device 100, thereby improving the heat dissipation capacity of the electronic device 100. In addition, because the foot pad 400 is an existing part of the electronic device 100, it does not damage the appearance of the electronic device 100. In addition, the hinge device 500 and the foot pad 400 can also be decoupled from the thickness of the electronic device 100, thereby reducing the thickness of the electronic device 100 and achieving a thinner design.

[0087] The electronic device 100 of the embodiment of the present application may include but is not limited to a laptop computer, a keyboard device for detachably connecting to a tablet computer, etc. In the embodiment of the present application, a laptop computer is used as an example for description.

[0088] FIG1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application, and FIG2 is an exploded schematic diagram of the electronic device in FIG1 .

[0089] As shown in Figure 1, the electronic device 100 provided in an embodiment of the present application may include a first portion 200, a second portion 300, a foot pad 400, and a hinge assembly 500. The first end of the hinge assembly 500 is fixedly connected to the first portion 200, and the second end of the hinge assembly 500 is fixedly connected to the foot pad 400. The second portion 300 is provided with an opening, and a portion of the foot pad 400 is disposed outside the second portion 300 through the opening. The foot pad 400 is used to contact a table surface to support the electronic device 100.

[0090] It should be noted that, in addition to being arranged alongside the hinge assembly 500, the foot pad 400 may also be one of the components of the hinge assembly 500. Therefore, in some embodiments, the electronic device 100 may also include the first portion 200, the second portion 300, and the hinge assembly 500, and the hinge assembly 500 may include the foot pad 400 partially disposed outside the second portion 300 through an opening.

[0091] As shown in FIG. 2 , there may be two hinge devices 500 , which are symmetrically arranged. Each hinge device 500 is connected to a foot pad 400 , which can ensure the stability of the electronic device 100 .

[0092] Since the electronic device 100 is a laptop computer, as shown in FIG2 , the first portion 200 may include a display screen 210 and a first housing 220, and the second portion 300 may include a keyboard module 310 and a second housing 320. The keyboard module 310 may include a third housing and a keyboard. The first portion 200 and the second housing 320 are rotatably connected, thereby rotatably connecting the first portion 200 and the second portion 300.

[0093] As shown in the figure, the hinge assembly 500 is disposed within the second portion 300. The first hinge 10 of the hinge assembly 500 is fixedly connected to the first housing 220, and the support member 40 of the hinge assembly 500 is fixedly connected to the second housing 320. As the first portion 200 rotates relative to the second portion 300, the first housing 220, via the hinge assembly 500, drives the foot pad 400 in linear motion, causing the foot pad 400 to extend beyond the second portion 300.

[0094] When the electronic device 100 is placed on a table, the first portion 200 rotates relative to the second portion 300, gradually increasing the angle between the first portion 200 and the second portion 300, thereby unfolding the electronic device 100. During the unfolding process, the first portion 200 drives the foot pad 400 to move linearly via the hinge assembly 500, increasing the length of the foot pad 400 extending from the electronic device 100. This increases the space between the electronic device 100 and the table, thereby improving the heat dissipation capacity of the electronic device 100.

[0095] FIG3 is a schematic structural diagram of the electronic device in FIG1 in a closed state, FIG4 is a schematic diagram of the electronic device in FIG1 when the unfolding angle is N1°, and FIG5 is a schematic diagram of the electronic device in FIG1 when the unfolding angle is N°.

[0096] Since the electronic device 100 is a laptop computer, the electronic device 100 has a closed state (such as shown in FIG3 ) and an unfolded state (such as shown in FIG4 or FIG5 ). In conjunction with FIG3 , it can be seen that when the electronic device 100 is in the closed state, the angle between the first part 200 and the first part 200 is 0°. In other words, the unfolding angle of the electronic device 100 is 0°. When the electronic device 100 is in the unfolded state, the angle between the first part 200 and the second part 300 is greater than 0° and less than or equal to N°. In other words, the unfolding angle of the electronic device 100 ranges from 0 to N°. Among them, N is greater than 0 and less than 180. For example, N can be 120. In addition, N° can be understood as the maximum unfolding angle of the electronic device 100. For example, in an embodiment of the present application, N° can be 120° (for example, as shown in FIG5 ).

[0097] During the unfolding process of the electronic device 100, when the hinge device 500 drives the foot pad 400 to move in a straight line, so that the length of the foot pad 400 extending out of the electronic device 100 increases, is not limited here. For example, in conjunction with Figures 3 and 5, it can be seen that during the process of the unfolding angle of the electronic device 100 changing from 0° to N1°, the hinge device 500 drives the foot pad 400 to move in a straight line, so that the length of the foot pad 400 extending out of the electronic device 100 gradually increases, until it stops when the unfolding angle of the electronic device 100 is N1°. Subsequently, in conjunction with Figures 4 and 5, it can be seen that the unfolding angle of the electronic device 100 changes from N1° to N°. During this process, the hinge device 500 will not drive the foot pad 400 to move in a straight line, and the length of the foot pad 400 extending out of the electronic device 100 will not change.

[0098] Of course, in addition to linear motion of the foot pad 400 as the unfolded angle of the electronic device 100 changes from 0° to N1°, in some embodiments, the foot pad 400 may also linearly move as the unfolded angle of the electronic device 100 changes from N1° to N2°, thereby increasing the length of the foot pad 400 extending from the electronic device 100, in which case 0° < N1° < N2° < N°. Alternatively, in some embodiments, the foot pad 400 may also linearly move as the unfolded angle of the electronic device 100 changes from N1° to N°, thereby increasing the length of the foot pad 400 extending from the electronic device 100, in which case 0° < N1° < N°. Alternatively, in some embodiments, the foot pad 400 may also linearly move as the unfolded angle of the electronic device 100 changes from 0° to N°, thereby increasing the length of the foot pad 400 extending from the electronic device 100.

[0099] In the embodiment of the present application, the linear motion of the foot pad 400 during the process of the unfolding angle of the electronic device 100 changing from 0° to N1° is taken as an example for description.

[0100] The implementation of the rotating shaft device 500 provided in the embodiment of the present application is described below in conjunction with the accompanying drawings.

[0101] Figure 6 is a first three-dimensional structural schematic diagram of the first rotating shaft device provided in an embodiment of the present application, Figure 7 is a second three-dimensional structural schematic diagram of the rotating shaft device in Figure 6, Figure 8 is a top-view structural schematic diagram of the rotating shaft device in Figure 6, and Figure 9 is an exploded schematic diagram of the rotating shaft device in Figure 6.

[0102] As shown in FIG6 , the rotating shaft device 500 of the embodiment of the present application includes a first rotating shaft 10, a second rotating shaft 20, and a connecting rod mechanism 30. The connecting rod mechanism 30 includes a first rod 31, a second rod 32, and a third rod 33. The first end of the first rod 31 is movably connected to the first end of the second rod 32, and the second end of the first rod 31 is movably connected to the first end of the third rod 33. The third end of the first rod 31 is fixedly connected to the foot pad 400, and the second end of the second rod 32 is connected to the second rotating shaft 20. The first rotating shaft 10 is transmission-connected to the second rotating shaft 20, and the first rotating shaft 10 is fixedly connected to the first portion 200. The first rotating shaft 10 is configured to receive a driving force. During the rotation of the first rotating shaft 10, the second rotating shaft 20 is configured to drive the foot pad 400 to perform linear motion through the connecting rod mechanism 30 under the drive of the first rotating shaft 10.

[0103] As can be seen from Figures 2 and 3 , during the unfolding of the electronic device 100, the first portion 200 applies a driving force to the first rotating shaft 10, causing the first rotating shaft 10 to rotate. After the first rotating shaft 10 receives the driving force, the first rotating shaft 10 drives the second rotating shaft 20 to rotate. The rotation of the second rotating shaft 20 simultaneously drives the second rod 32 to rotate. The rotation of the second rod 32 simultaneously drives the first rod 31 to linearly move along the first direction Z. The linear motion of the first rod 31 also drives the third rod 33 to rotate via the first rod 31. Because the foot pad 400 is fixedly connected to the first rod 31, the first rod 31 drives the foot pad 400 to linearly move along the first direction Z.

[0104] As shown in Figure 7, the first end of the first rod 31 is connected to the first end of the second rod 32, and the second end of the first rod 31 is connected to the first end of the third rod 33, so that the structure of the connecting rod mechanism 30 is similar to the four-bar structure, thereby improving the reliability and stability of the linear motion of the first rod 31, and further improving the smoothness and stability of the linear motion of the foot pad 400.

[0105] Since the foot pad 400 is fixedly connected to the first rod 31, the first rod 31 can drive the foot pad 400 to move linearly while performing linear motion, so that the length of the foot pad 400 extending from the electronic device 100 can be increased, thereby increasing the space between the electronic device 100 and the table supporting the electronic device 100, thereby increasing the heat dissipation capacity of the electronic device 100.

[0106] The specific structure of the first rod 31 is not limited here. For example, as shown in Figure 9, the first rod 31 may include a main body 313 and a fixing portion 314. The first end and the second end of the main body 313 are respectively connected to the third rod 33 and the fixing portion 314, and the third end of the main body 313 is connected to the second rod 32. The fixing portion 314 is used to be fixedly connected to the foot pad 400. The specific structure of the main body 313 is not limited here. For example, as shown in Figure 9, the main body 313 can be a rod-shaped structure with a rectangular cross-section. The specific structure of the fixing portion 314 is not limited here. For example, as shown in Figure 9, the fixing portion 314 can be a rectangular plate-shaped structure.

[0107] As shown in Figure 6 , the second rotating shaft 20 is fixedly connected to the second end of the second rod 32. Thus, during rotation of the second rotating shaft 20, the second rotating shaft 20 drives the second rod 32 to rotate about its axis, which in turn drives the first rod 31 and the third rod 33 to move. The method for fixing the second rotating shaft 20 and the second rod 32 is not limited herein. For example, the second end of the second rod 32 may include a fixing hole for inserting the second rotating shaft 20, with the second rotating shaft 20 forming an interference fit with the fixing hole.

[0108] In addition to the second rotating shaft 20 being fixedly connected to the third end of the second rod 32 to drive the second rod 32 to rotate about the axis of the second rotating shaft 20, in some implementations, the rotating shaft device 500 may further include a transmission member (not shown in the figure), the first and second ends of the transmission member being transmission-connected to the second rotating shaft 20 and the second end of the second rod 32, respectively, so that the second rotating shaft 20 drives the second rod 32 to rotate about the axis of the second rotating shaft 20 via the transmission member. The specific structure of the transmission member is not limited herein. In some implementations, the transmission member may include a first gear and a second gear, the first gear being fixed to the second rotating shaft 20, the second gear being fixed to the second end of the second rod 32, and the first gear meshing with the second gear.

[0109] FIG10 is a schematic cross-sectional view taken along line AA in FIG8 .

[0110] In order to achieve a movable connection between the first rod 31 and the second rod 32, in some possible implementations, one of the first rod 31 and the second rod 32 can be provided with a first strip hole 311, and a portion of the other can be movably provided inside the first strip hole 311. For example, as shown in Figures 7 and 10, the first strip hole 311 is provided on the first rod 31 and a portion of the second rod 32 is movably provided inside the first strip hole 311. Of course, the first strip hole 311 can also be provided on the second rod 32 and a portion of the first rod 31 can be movably provided inside the first strip hole 311.

[0111] During the rotation of the second rotating shaft 20, the second rotating shaft 20 drives the second rod 32 to rotate. The portion of the second rod 32 set in the first strip hole 311 slides along the inner wall of the first strip hole 311 and abuts against the inner wall of the first strip hole 311 along the first direction Z (for example, as shown in Figure 10), so that the first rod 31 moves linearly along the first direction Z, so that the first rod 31 can drive the foot pad 400 to move linearly along the first direction Z.

[0112] 7 , the first rod 31 is formed by a fixing portion 314 and a main body 313, with a first strip-shaped hole 311 provided in the main body 313. Furthermore, the first strip-shaped hole 311 can also penetrate the main body 313 along the second direction Y, thereby simplifying the structure of the first rod 31 and reducing the difficulty of manufacturing the first rod 31.

[0113] The specific structure of the second rod 32 is not limited here. For example, as shown in Figure 9, the second rod 32 can include a first main portion 322 and a first branch portion 321. One end of the first main portion 322 is fixedly connected to the second rotating shaft 20, and the other end of the second main portion 332 is fixedly connected to the first branch portion 321. The first branch portion 321 is partially disposed within the first strip-shaped hole 311 (see Figure 7). Of course, the first branch portion 321 can also be disposed within the first strip-shaped hole 311.

[0114] The specific structure of the first branch 321 is not limited here. For example, as shown in Figure 9, the first branch 321 can be a cylindrical structure, which can reduce the resistance between the first branch 321 and the first strip-shaped hole 311. Of course, the first branch 321 can also be a columnar structure with a polygonal cross-section.

[0115] The specific shape of the second rod 32 is not limited herein. For example, as shown in FIG9 , the other end of the first main portion 322 is connected to the middle portion of the first branch portion 321, so that the second rod 32 can be shaped similarly to a "T." Of course, the second rod 32 can also have other shapes, such as an "L" shape.

[0116] To achieve the movable connection between the first rod 31 and the third rod 33, in some possible implementations, one of the first rod 31 and the third rod 33 may be provided with a second strip hole 312, and a portion of the other rod may be movably disposed within the second strip hole 312. For example, as shown in Figures 7 and 10, the second strip hole 312 is provided in the first rod 31, and a portion of the third rod 33 is movably disposed within the second strip hole 312. Of course, the second strip hole 312 may also be provided in the third rod 33, and a portion of the first rod 31 may be movably disposed within the second strip hole 312.

[0117] During rotation of the second rotating shaft 20, the second rotating shaft 20 drives the first rod 31 to move linearly along the first direction Z via the second rod 32. Simultaneously, the portion of the third rod 33 disposed within the second strip-shaped hole 312 slides along the inner wall of the second strip-shaped hole 312 and abuts against the inner wall of the second strip-shaped hole 312, thereby improving the stability and reliability of the movement of the first rod 31. Furthermore, when the third rod 33 is connected to the second rod 32 via the fourth rod 34, the third rod 33 can also drive the first rod 31 to move linearly via the second strip-shaped hole 312, thereby improving the smoothness and reliability of the movement of the first rod 31.

[0118] 7 , the first rod 31 is formed by a fixing portion 314 and a main body 313, with the second strip-shaped hole 312 provided in the main body 313. Alternatively, the second strip-shaped hole 312 may extend through the main body 313 along the second direction Y, thereby simplifying the structure of the first rod 31 and reducing the difficulty of manufacturing the first rod 31.

[0119] For example, as shown in FIG10 , along the first direction Z, the first strip-shaped hole 311 and the second strip-shaped hole 312 are arranged at the same height. Of course, the first strip-shaped hole 311 and the second strip-shaped hole 312 can also be arranged at different heights. Accordingly, whether the first strip-shaped hole 311 and the second strip-shaped hole 312 are arranged at the same height or different heights does not affect the linear motion of the first rod 31. When the first strip-shaped hole 311 and the second strip-shaped hole 312 are arranged at the same height, the design difficulty of the linkage mechanism 30 can be reduced.

[0120] The specific structure of the third rod 33 is not limited herein. For example, as shown in FIG9 , the third rod 33 may include a second branch 331 and a second main body 332 . One end of the second main body 332 is connected to the second branch 331 . A portion of the second branch 331 is disposed within the second strip-shaped hole 312 . Alternatively, the second branch 331 may be disposed within the second strip-shaped hole 312 .

[0121] The specific structure of the second branch 331 is not limited here. For example, as shown in FIG9 , the second branch 331 can be a cylindrical structure, which can reduce the resistance between the second branch 331 and the second strip-shaped hole 312. Of course, the second branch 331 can also be a columnar structure with a polygonal cross-section.

[0122] The specific shape of the third rod 33 is not limited herein. For example, as shown in FIG9 , the other end of the second main portion 332 is connected to the middle portion of the second branch portion 331, so that the third rod 33 can be shaped similarly to a "T." Of course, the third rod 33 can also have other shapes, such as an "L" shape.

[0123] In some possible implementations, the linkage mechanism 30 may further include at least one fourth rod 34. For example, as shown in FIG. 7 , there are two fourth rods 34. Alternatively, there may be one fourth rod 34. A fourth rod 34 is disposed on at least one of the opposing sides of the first rod 31. For example, as shown in FIG. 8 , along the second direction Y, a fourth rod 34 is disposed on opposing sides of the first rod 31, with each fourth rod 34 spaced apart from the first rod 31. Along the third direction X, opposite ends of each fourth rod 34 are pivotally connected to the second rod 32 and the third rod 33, respectively (as shown in FIG. 8 ). The axis of rotation between the fourth rod 34 and the second rod 32 is parallel to the axis of rotation between the fourth rod 34 and the third rod 33.

[0124] For example, as shown in FIG8 , when fourth rods 34 are provided on opposite sides of the first rod 31, the second rod 32, the third rod 33, and the two fourth rods 34 can form a stable parallelogram structure, further improving the smoothness and stability of the movement of the first rod 31. Furthermore, when fourth rods 34 are provided on one or both sides of the first rod 31, the second rod 32 and the third rod 33 can be connected via the fourth rod 34, so that the second rod 32 can drive the third rod 33 to rotate via the fourth rod 34, thereby also driving the first rod 31 to move linearly. This can further evenly distribute the force applied to the entire first rod 31, resulting in smoother and more stable movement of the first rod 31.

[0125] There is no limitation on the specific structure of the fourth rod 34 . For example, as shown in FIG. 9 , the fourth rod 34 may be a rod-shaped structure with a rectangular cross section.

[0126] There is no limitation on how the fourth rod 34 is rotatably connected to the second rod 32 and the third rod 33. For example, the fourth rod 34 can be rotatably connected to the second rod 32 or the third rod 33 via a pin.

[0127] 8 and 9 , since the second rod member 32 is composed of the first main portion 322 and the first branch portion 321 , the opposite ends of the first branch portion 321 can be fixedly connected to one end of the two fourth rod members 34 respectively, and part of the first branch portion 321 is arranged inside the first bar-shaped hole 311 .

[0128] 8 and 9 , since the third rod 33 is composed of the second main portion 332 and the second branch 331 , the opposite ends of the second branch 331 can be fixedly connected to the other ends of the two fourth rods 34 respectively, and part of the second branch 331 is arranged inside the second bar-shaped hole 312 .

[0129] As shown in FIG6 , the hinge assembly 500 further includes a support member 40. The second ends of the first hinge 10, the second hinge 20, and the third rod 33 can be connected to the support member 40, respectively, so that the second hinge 20 mates with the first hinge 10 and the second rod 32, respectively, and the first rod 31 mates with the second rod 32 and the third rod 33, respectively. Furthermore, the support member 40 can also be used to fixedly connect with the second housing 320 to secure the hinge assembly 500 within the second portion 300.

[0130] The specific structure of the support member 40 is not limited herein. For example, as shown in FIG7 , the support member 40 may include a first support frame 44 and a second support frame 45 . The first support frame 44 and the second support frame 45 are detachably connected, which can reduce the manufacturing cost of the support member 40. Furthermore, the difficulty of mating the first rotating shaft 10 , the second rotating shaft 20 , the second rod 32 , and the third rod 33 with the support member 40 can be reduced.

[0131] It should be noted that the support member 40 may also be removed. In this case, the first rotating shaft 10, the second rotating shaft 20 and the third rod 33 may also be installed in the second shell 320, and the first rotating shaft 10, the second rotating shaft 20 and the connecting rod mechanism 30 may also cooperate with each other.

[0132] To guide the first rod 31 to perform linear motion, in some possible implementations, such as those shown in FIG6 or FIG7 , the support member 40 may further include a guide portion 41. The guide portion 41 is connected to the first rod 31 and is used to cause the first rod 31 to perform linear motion during the rotation of the second rotating shaft 20.

[0133] Accordingly, when the second rod 32 drives the first rod 31 to move, the guide portion 41 guides the first rod 31 so that the first rod 31 can move linearly along the first direction Z, so that the length of the foot pad 400 extending from the electronic device 100 can change.

[0134] It should be noted that when the support member 40 is removed from the rotating shaft device 500, in some implementations, the rotating shaft device 500 may further include a guide member (not shown in the figure) for guiding the first rod member 31 to move linearly during the rotation of the second rotating shaft 20. The guide member may be connected to the second housing 320. The connection structure between the guide member and the first rod member 31 may be similar to the connection structure between the guide portion 41 and the first rod member 31.

[0135] As shown in FIG. 7 , a guide portion 41 is provided on each of the first support frame 44 and the second support frame 45 . Of course, the guide portion 41 may be provided on only one of the first support frame 44 and the second support frame 45 .

[0136] FIG11 is a schematic top view of the first rod member in FIG9 . There is no limitation on how the guide portion 41 is connected to the first rod member 31 to guide the first rod member 31 for linear motion. For example, one of the guide portion 41 and the first rod member 31 may include a guide hole 411, and the other may include a protrusion 315 at least partially disposed within the guide hole 411. For example, the guide hole 411 may be disposed in the guide portion 41 (as shown in FIG10 ) and the first rod member 31 may include the protrusion 315 (as shown in FIG11 ). Of course, the guide hole 411 may also be disposed in the first rod member 31 and the protrusion 315 may also be disposed in the guide portion 41.

[0137] As shown in FIG10 , when the second rod 32 drives the first rod 31 to move, the protrusion 315 slides with the inner wall of the guide hole 411. Thus, the inner wall of the guide hole 411 guides the protrusion 315 to move linearly along the first direction Z. Furthermore, the guide portion 41 guides the first rod 31 to move linearly. Furthermore, providing the guide hole 411 within the guide portion 41 simplifies the structure of the support member 40.

[0138] The guide portion 41 can be provided with multiple guide holes 411, and the first rod 31 includes multiple protrusions 315, with each protrusion 315 corresponding to a guide hole 411. For example, as shown in Figure 10, the guide portion 41 is provided with two guide holes 411 spaced apart along the third direction X, with each guide hole 411 corresponding to a protrusion 315. Accordingly, the multiple guide holes 411 cooperate with the multiple protrusions 315 to guide the linear motion of the first rod 31, thereby improving the accuracy of the linear motion of the first rod 31. The first direction Z, the second direction Y, and the third direction X are mutually perpendicular.

[0139] For example, as shown in FIG7 , the number of guide portions 41 can be two, with the first rod 31 disposed between the two guide portions 41. Of course, the number of guide portions 41 can also be one. Therefore, the number of guide portions 41 can be one or two, both of which can guide the first rod 31 to linearly move along the first direction Z. However, using two guide portions 41 to guide the first rod 31 to linearly move not only further enhances the guiding effect of the first rod 31 but also prevents the first rod 31 from moving along the alignment direction of the two guide portions 41 (such as the Y direction in FIG8 ), further improving the reliability of the movement of the first rod 31.

[0140] It should be noted that when there are two guide portions 41, each guide portion 41 may be provided with multiple guide holes 411, or each guide portion 41 may be provided with one guide hole 411, or one of the two guide portions 41 may be provided with one guide hole 411 and the other may be provided with two guide holes 411. In addition, when there is only one guide portion 41, the guide portion 41 may be provided with one or more guide holes 411.

[0141] For example, as shown in FIG7 , the guide portion 41 can also be disposed between the second rod 32 and the third rod 33. The space between the second rod 32 and the third rod 33 can be utilized to arrange the guide portion 41, thereby improving the integration of the rotating shaft device 500 and facilitating miniaturization of the rotating shaft device 500. Of course, the guide portion 41 may not be disposed between the second rod 32 and the third rod 33. The guide portion 41 can also guide the first rod 31 to move linearly.

[0142] For example, as shown in FIG7 , the guide portion 41 can also be disposed between the two fourth rods 34. The space between the two fourth rods 34 can be used to arrange the limiter, thereby reducing the space required for arranging the rotating shaft device 500 and reducing the difficulty of arranging the rotating shaft device 500. Of course, the guide portion 41 does not need to be disposed between the two fourth rods 34. The guide portion 41 can also guide the first rod 31 to move linearly.

[0143] In some embodiments, as shown in FIG. 9 , the support member 40 may further be provided with an escape notch 51 , and the escape notch 51 is used to escape the first rotating shaft 10 , the second rotating shaft 20 , the first rod 31 and the second rod 32 .

[0144] During the linear motion of the first rod 31, the first rotating shaft 10, the second rotating shaft 20, the first rod 31 and the second rod 32 are avoided by the avoidance gap 51, so that the support member 40 can be prevented from interfering with the movement of the first rotating shaft 10, the second rotating shaft 20, the first rod 31 and the second rod 32, thereby improving the integration of the rotating shaft device 500 and further facilitating the miniaturization of the rotating shaft device 500.

[0145] In some embodiments, the support member 40 may further be provided with at least one of a first groove 52, a second groove 53, a third groove 54, and a fourth groove 55. For example, as shown in FIG9 , the support member 40 may be provided with a first groove 52, a second groove 53, a third groove 54, and a fourth groove 55. The first groove 52 is used to avoid the first rod 31, the second groove 53 is used to avoid the second rod 32, the third groove 54 is used to avoid the third rod 33, and the fourth groove 55 is used to avoid the fourth rod 34.

[0146] During the linear motion of the first rod 31, by providing at least one of the first groove 52, the second groove 53, the third groove 54 and the fourth groove 55 on the support member 40, it is possible to avoid the first rod 31, the second rod 32, the third rod 33 and the fourth rod 34 from being unable to move due to interference from the support member 40, thereby improving the integration of the rotating shaft device 500 while satisfying the movement of the connecting rod mechanism 30, which is conducive to the miniaturization of the rotating shaft device 500.

[0147] In some embodiments, the support member 40 can also be configured to be rotatably connected to at least one of the first rotating shaft 10, the second rotating shaft 20, and the third rod 33. For example, as shown in FIG7 , both ends of the first rotating shaft 10 are rotatably connected to the support member 40, both ends of the second rotating shaft 20 are rotatably connected to the support member 40, and the third rod 33 is rotatably connected to the support member 40. By rotatably connecting the support member 40 to the first rotating shaft 10, the second rotating shaft 20, and the third rod 33, the utilization rate of the support member 40 can be improved, thereby reducing the number of parts of the rotating shaft device 500 and simplifying the structure of the rotating shaft device 500.

[0148] As shown in FIG7 , the support member 40 may include a first support 44 and a second support 45, wherein the first support 44 and the second support 45 are detachably connected. The third rod 33 may be rotatably connected to either the first support 44 or the second support 45. The first rotating shaft 10 has two ends rotatably connected to the first support 44 and the second support 45, respectively. The second rotating shaft 20 has two ends rotatably connected to the first support 44 and the second support 45, respectively.

[0149] In some embodiments, such as shown in FIG7 , the support member 40 may further include a first stopper 42 (see FIG9 ), and the first rotating shaft 10 may further include a second stopper 13 (see FIG12 ). During the rotation of the first rotating shaft 10 , the first stopper 42 abuts against the second stopper 13 , thereby limiting the rotation of the first rotating shaft 10 and ensuring that the electronic device 100 reaches the maximum unfolded angle.

[0150] There is no limitation on the specific structure of the second stopper 13 . For example, as shown in FIG. 7 , the second stopper 13 may be a strip-shaped structure extending along the axial direction of the first rotating shaft 10 .

[0151] Figure 12 is a schematic three-dimensional diagram of the coordinated structure of the first rotating shaft and the second rotating shaft shown in Figure 9. As shown in Figure 12, the first rotating shaft 10 may include a first tooth portion 11, and the second rotating shaft 20 may include a second tooth portion 21. The first tooth portion 11 is configured to engage with the second tooth portion 21. During the engagement of the first tooth portion 11 with the second tooth portion 21, the first rotating shaft 10 can drive the second rotating shaft 20 to rotate, and the second rotating shaft 20, via the second rod 32, drives the first rod 31 to move linearly.

[0152] Along the circumference of the first rotating shaft 10, a portion of the first rotating shaft 10 may be provided with first teeth 11 (for example, as shown in FIG12 ). In other words, the multiple first teeth 11 in the first rotating shaft 10 do not constitute a complete gear structure. Along the circumference of the second rotating shaft 20, a portion of the second rotating shaft 20 may be provided with second teeth 21. The multiple second teeth 21 in the second rotating shaft 20 do not constitute a complete gear structure.

[0153] Therefore, when the first tooth portion 11 and the second tooth portion 21 are engaged, the rotation of the first rotating shaft 10 can simultaneously drive the rotation of the second rotating shaft 20, causing the second rotating shaft 20 to drive the foot pad 400 to move linearly through the linkage mechanism 30, thereby increasing the length of the foot pad 400 extending from the electronic device 100. When the first tooth portion 11 and the second tooth portion 21 are not engaged, the rotation of the first rotating shaft 10 does not drive the rotation of the second rotating shaft 20, and the length of the foot pad 400 extending from the electronic device 100 remains unchanged.

[0154] It should be noted that, in addition to achieving the intermittent rotation of the second rotating shaft 20 by the first rotating shaft 10 as shown in FIG10 , in some embodiments, the multiple first teeth 11 in the first rotating shaft 10 may also constitute a complete gear structure, and accordingly, the multiple second teeth 21 in the second rotating shaft 20 may not constitute a complete gear structure. Alternatively, during the rotation of the first rotating shaft 10, the first teeth 11 and the second teeth 21 may separate to prevent the second rotating shaft 20 from rotating. Alternatively, in some embodiments, the multiple first teeth 11 in the first rotating shaft 10 may not constitute a complete gear structure, and accordingly, the multiple second teeth 21 in the second rotating shaft 20 may also constitute a complete gear structure. Alternatively, during the rotation of the first rotating shaft 10, the first teeth 11 and the second teeth 21 may separate to prevent the second rotating shaft 20 from rotating.

[0155] Figure 13 is a schematic diagram of the structure of the first rotating shaft and the second rotating shaft when the electronic device in Figure 1 is deployed at an angle of 0°. Figure 14 is a schematic diagram of the structure of the first rotating shaft and the second rotating shaft when the electronic device in Figure 1 is deployed at an angle of 30°. Figure 15 is a schematic diagram of the structure of the first rotating shaft and the second rotating shaft when the electronic device in Figure 1 is deployed at an angle of N1°. Figure 16 is a left side cross-sectional view of the AA point in Figure 8 when the deployment angle is N1°. Figure 17 is a schematic diagram of the structure of the rotating shaft device from the left when the deployment angle is N1°. In the embodiment of the present application, N1° is 60°.

[0156] As shown in FIG13 , when the unfolded angle of the electronic device 100 is 0°, the first tooth portion 11 is engaged with the second tooth portion 21. Therefore, as the unfolded angle of the electronic device 100 changes from 0° to N1°, as shown in FIG13 to FIG17 , the first rotating shaft 10 can drive the second rotating shaft 20 to rotate, so that the second rotating shaft 20 can drive the foot pad 400 to move linearly via the linkage mechanism 30, thereby increasing the length of the foot pad 400 extending from the electronic device. When the unfolded angle of the electronic device 100 changes to N1°, the first tooth portion 11 is not engaged with the second tooth portion 21, or in other words, the first tooth portion 11 is disengaged from the second tooth portion. Therefore, as the unfolded angle of the electronic device 100 changes from N1° to N°, the first rotating shaft 10 does not drive the second rotating shaft 20 to rotate, so that the length of the foot pad 400 extending from the electronic device 100 remains unchanged.

[0157] Figure 18 is a schematic structural diagram of the cooperation between the first protrusion 12 and the second protrusion 22 when the expansion angle is 0°, Figure 19 is a schematic structural diagram of the cooperation between the first protrusion 12 and the second protrusion 22 when the expansion angle is N1°, Figure 20 is a schematic structural diagram of the cooperation between the first protrusion 12 and the second protrusion 22 when the expansion angle is N°, Figure 21 is a left side sectional schematic diagram of BB in Figure 8 when the expansion angle is 0°, and Figure 22 is a right side sectional schematic diagram of BB in Figure 8 when the expansion angle is N°.

[0158] In conjunction with FIG. 12 and FIG. 18 , the first rotating shaft 10 may further include a first protrusion 12, and the second rotating shaft 20 may further include a second protrusion 22. Along the third direction X, the projection of the first protrusion 12 overlaps with the projection of the second protrusion 22. The first protrusion 12 may be provided with a first notch 121. This prevents the first protrusion 12 from interfering with the second protrusion 22 during the rotation of the first rotating shaft 10 and the second rotating shaft 20, thereby ensuring rotation of the first rotating shaft 10 and the second rotating shaft 20. Alternatively, the first notch 121 may be used to avoid the second protrusion 22.

[0159] In the process of the unfolding angle of the electronic device 100 changing from 0° to N1°, it can be seen from Figures 18 and 19 that the second protrusion 22 can be partially set inside the first notch 121, so that the first protrusion 12 can avoid the second protrusion 22 to prevent the two from conflicting with each other and causing the first rotating shaft 10 and the second rotating shaft 20 to be unable to rotate.

[0160] During the process of the electronic device 100's deployment angle changing from N1° to N°, since the first tooth portion 11 and the second tooth portion 21 are not engaged, the second shaft 20 may reverse, causing the length of the foot pad 400 extending from the electronic device 100 to become shorter, making the heat dissipation space of the electronic device 100 smaller, which is not conducive to the heat dissipation of the electronic device 100. The reversal of the second shaft 20 can be understood as the direction opposite to the direction in which the first shaft 10 drives the second shaft 20 to rotate. For example, as shown in FIG15 , if the first shaft 10 drives the second shaft 20 to rotate clockwise, the reversal direction of the second shaft 20 is counterclockwise. Therefore, it is necessary to prevent the second shaft 20 from rotating during the process of the electronic device 100's deployment angle changing from N1° to N° to ensure that the length of the foot pad 400 extending from the electronic device 100 does not change.

[0161] For example, as shown in FIG18 , the second protrusion 22 may further be provided with a second notch 221. When the first rotating shaft 10 does not drive the second rotating shaft 20 to rotate, the second notch 221 is configured to cooperate with the first protrusion 12 to prevent the second rotating shaft 20 from rotating relative to the first rotating shaft 10. In other words, by cooperating with the second notch 221 and the first protrusion 12, the first rotating shaft 10 can rotate while the second rotating shaft 20 does not rotate.

[0162] As shown in FIG19 , when the electronic device 100 is deployed at an angle of N1°, a portion of the first protrusion 12 is disposed within the second notch 221 and slidably engages with the inner wall of the second notch 221. The second notch 221 and the first protrusion 12 form a limiting structure, which allows the first shaft 10 to rotate while the second shaft 20 does not rotate. This prevents the first rod 31 from retracting due to the second shaft 20 reversing, thereby allowing the length of the foot pad 400 extending from the electronic device 100 to remain unchanged. As shown in FIG19 and FIG20 , during the process of the electronic device 100's deployment angle changing from N1° to N°, that is, during the process of the first shaft 10 not driving the second shaft 20 to rotate, the limiting structure formed by the second notch 221 and the first protrusion 12 prevents the second shaft 20 from rotating relative to the first shaft 10, thereby preventing the foot pad 400 from extending from the electronic device 100 from shortening.

[0163] It is understood that when the electronic device 100 is placed on a table, the foot pad 400 contacts the table, causing the foot pad 400 to tend to retract toward the inside of the electronic device 100. As the deployment angle of the electronic device 100 changes from N1° to N°, as shown in Figures 19 and 20, if the foot pad 400 retracts toward the inside of the electronic device 100, the foot pad 400 will drive the second rotating shaft 20 to rotate clockwise via the linkage mechanism 30, causing the second rotating shaft 20 to rotate in the opposite direction, which will reduce the space between the electronic device 100 and the table. However, because the second notch 221 and the first protrusion 12 form a retaining structure, the second protrusion 22 will contact the first protrusion 12 when the second rotating shaft 20 rotates in the opposite direction, preventing the second rotating shaft 20 from rotating in the opposite direction. Consequently, the foot pad 400 will not retract, ensuring that the space between the electronic device 100 and the table remains substantially unchanged.

[0164] 18 and 19 , when the unfolding angle of the electronic device 100 changes from 0° to N1°, the first protrusion 12 can also be avoided through the second notch 221 , thereby preventing the first rotating shaft 10 and the second rotating shaft 20 from being unable to rotate due to interference between the first protrusion 12 and the second protrusion 22 .

[0165] 18 , the second notch 221 may be an arc-shaped notch, so that the inner wall of the second notch 221 may be adapted to the outer wall of the first protrusion 12 , thereby limiting the rotation of the second shaft 20 while the first shaft 10 rotates.

[0166] As shown in FIG19 , the inner wall of the second notch 221 can slideably engage with the outer wall of the first protrusion 12. This ensures that the first rotating shaft 10 can rotate relative to the second rotating shaft 20, provided that the first protrusion 12 and the second notch 221 form a limiting structure that prevents the second rotating shaft 20 from rotating. Of course, to further enhance the smoothness and quietness of the sliding contact between the inner wall of the second notch 221 and the first protrusion 12, a gap can be provided between the first protrusion 12 and the inner wall of the second notch 221 for accommodating a lubricant, such as lubricating oil.

[0167] In some possible implementations, such as shown in FIG20 , the second protrusion 22 may further be provided with a third notch 222. As shown in FIG6 and FIG7 , during the rotation of the second rotating shaft 20, the third notch 222 serves to clear the first rod 31, thereby ensuring proper operation of the second rotating shaft 20 and the first rod 31. Furthermore, the distance between the second rotating shaft 20 and the first rod 31 can be reduced, thereby reducing the dimension of the rotating shaft device 500 in the third direction X, thereby facilitating miniaturization of the rotating shaft device 500.

[0168] FIG23 is a schematic left view of the rotating shaft device in FIG8 .

[0169] In some possible implementations, as shown in FIG7 , the first rotating shaft 10 may further include a first shaft portion 14, and the support member 40 may include a mating portion 43, wherein the mating portion 43 defines a mating hole 431. One end of the first shaft portion 14 is disposed within the mating hole 431 and is interference-fitted with the mating portion 43 (as shown in FIG23 ), thereby creating a certain amount of interference between the support member 40 and the first rotating shaft 10. This prevents the first rotating shaft 10 from rotating unless an external force is applied to the first rotating shaft 10. The other end of the first shaft portion 14 is configured to be fixedly connected to the first portion 200, such that the first rotating shaft 10, driven by the first portion 200, drives the second rotating shaft 20 to rotate.

[0170] Due to the interference fit between the mating portion 43 and the first shaft portion 14, there is a torsional force between the first rotating shaft 10 and the mating portion 43 that keeps the first rotating shaft 10 stationary. Therefore, when the electronic device 100 is unfolded and no external force is applied to change the unfolding angle, the angle between the first part 200 and the second part 300 can remain unchanged, thereby ensuring normal use of the electronic device 100.

[0171] 7 , the first shaft portion 14 may further include a spline portion 15 , which is configured to be inserted into the interior of the first portion 200 , such that the first rotating shaft 10 is fixedly connected to the first portion 200 by riveting.

[0172] As shown in Figure 7, the support member 40 can also include two first supporting portions 46, which are respectively sleeved on the outer wall of the first shaft body portion 14 and respectively rotatably connected to the first shaft body portion 14. The two first supporting portions 46 are arranged at intervals along the axial direction of the first rotating shaft 10, so that the first rotating shaft 10 can be rotatably connected to the support member 40, thereby reducing the number of parts of the rotating shaft device 500 to simplify the structure of the rotating shaft device 500.

[0173] As shown in FIG7 , the support member 40 may further include two second supporting portions 47, and the second rotating shaft 20 may further include a second shaft portion 23. The two second supporting portions 47 are rotatably connected to opposite ends of the second shaft portion 23, respectively. Thus, the second rotating shaft 20 can be rotatably connected to the support member 40, thereby reducing the number of parts in the rotating shaft device 500 and simplifying the structure of the rotating shaft device 500.

[0174] Figure 24 is a structural schematic diagram of the second rotating shaft device provided in an embodiment of the present application, Figure 25 is an exploded schematic diagram of the torsion assembly in Figure 24, and Figure 26 is a three-dimensional structural schematic diagram of the connecting part in Figure 24.

[0175] The difference between Figure 24 and Figure 6 is that the torsion implementation schemes of the first rotating shaft 10 and the support member 40 are different, and the connection method between the first rotating shaft 10 and the first part 200 is different. Specifically, for example, as shown in Figure 24, the rotating shaft device 500 can also include a torsion assembly 60. As shown in Figure 25, the torsion assembly 60 can include a disc spring 61 and a fixing member 62. The disc spring 61 and the fixing member 62 are respectively mounted on the first rotating shaft 10. The disc spring 61 is located between the fixing member 62 and the support member 40 and abuts against the fixing member 62 and the support member 40 respectively. When the first rotating shaft 10 rotates, the disc spring 61 will generate friction due to being squeezed, thereby increasing the torsion, thereby maintaining the deployment angle of the electronic device 100 unchanged.

[0176] The number of disc springs 61 can be one or more. For example, as shown in FIG25 , there are five disc springs 61. Of course, the number of disc springs 61 can be more or less than five. In addition, when there are multiple disc springs 61, the multiple disc springs 61 are disposed between the fixing member 62 and the support member 40.

[0177] The specific structure of the fixing member 62 is not limited here. For example, as shown in FIG25 , the fixing member 62 can be a locking nut, which is used to be sleeved on the first rotating shaft 10 and threadedly connected to the first rotating shaft 10 .

[0178] For example, as shown in FIG. 25 , the torsion assembly 60 may further include two gaskets 63 , one gasket 63 being disposed between the fixing member 62 and the disc spring 61 , and the other gasket 63 being disposed between the disc spring 61 and the support member 40 .

[0179] As shown in FIG25 , the rotating shaft assembly 500 may further include a connector 70. For example, as shown in FIG24 , the other end of the first rotating shaft 10 is fixedly connected to the first portion 200 via the connector 70. Specifically, as shown in FIG2 , the rotating shaft assembly 500 is disposed within the second portion 300, the support member 40 is fixedly connected to the second housing 320, and the other end of the first rotating shaft 10 is fixedly connected to the first housing 220 via the connector 70.

[0180] There is no limitation on the specific structure of the connecting member 70. For example, as shown in FIG26 , the connecting member 70 may be an L-shaped plate structure, one end of the connecting member 70 being fixedly connected to the other end of the first rotating shaft 10, and the other end of the connecting member 70 being fixedly connected to the first portion 200 by screws.

[0181] In the description of the embodiments of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on specific circumstances.

[0182] In the embodiments of the present application, any device or element referred to or implied must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise specifically specified.

[0183] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0184] The term "plurality" in this document refers to two or more. The term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the related objects; in a formula, the character " / " indicates a "division" relationship between the related objects.

[0185] It will be understood that the various numerical numbers involved in the embodiments of the present application are merely distinctions for the convenience of description and are not intended to limit the scope of the embodiments of the present application.

[0186] It can be understood that in the embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Claims

1. A rotating shaft device, characterized in that, It includes a first rotating shaft, a second rotating shaft and a connecting rod mechanism; The connecting rod mechanism includes a first rod, a second rod and a third rod. The first end of the first rod is movably connected to the first end of the second rod. The second end of the first rod is movably connected to the first end of the third rod. The third end of the first rod is used for fixedly connecting with the foot pad. The second end of the second rod is connected to the second rotating shaft; The first rotating shaft is in transmission connection with the second rotating shaft. During the rotation of the first rotating shaft, the second rotating shaft is used for driving the foot pad to perform a linear motion through the connecting rod mechanism under the drive of the first rotating shaft.

2. The shaft device according to claim 1, characterized in that, The connecting rod mechanism further includes at least one fourth rod. At least one of the opposite sides of the first rod is provided with one of the fourth rods. The opposite ends of each fourth rod are respectively rotatably connected to the second rod and the third rod.

3. The shaft device according to claim 1 or 2, characterized in that One of the first rod and the second rod is provided with a first strip hole, and a part of the other is movably arranged inside the first strip hole.

4. The shaft device according to claim 3, wherein, The first rod is provided with the first strip hole, and the second rod includes a first branch part at least partially arranged inside the first strip hole.

5. The shaft device according to any one of claims 1 to 4, characterized in that The rotating shaft device further includes a support member. The support member includes a guiding part connected to the first rod. The guiding part is used for making the first rod perform a linear motion.

6. The shaft device according to claim 5, wherein, One of the guiding part and the first rod includes a guiding hole, and the other includes a protruding part at least partially arranged inside the guiding hole.

7. The shaft device according to claim 6, characterized in that, The guiding part is provided with a plurality of the guiding holes, and the first rod includes a plurality of the protruding parts. Each of the protruding parts corresponds to one of the guiding holes.

8. The rotating shaft device according to any one of claims 5 to 7, characterized in that, The number of the guiding parts is two, and the first rod is arranged between the two guiding parts.

9. The shaft device according to any one of claims 5 to 8, characterized in that, The guiding part is arranged between the second rod and the third rod.

10. The shaft device according to any one of claims 5 to 9, characterized in that, The support member is further provided with an avoidance notch for avoiding the first rotating shaft, the second rotating shaft, the first rod and the second rod.

11. The shaft device according to any one of claims 5 to 10, characterized in that, The support member is further provided with at least one of a first groove, a second groove, a third groove and a fourth groove. The first groove is used for avoiding the first rod, the second groove is used for avoiding the second rod, the third groove is used for avoiding the third rod, and the fourth groove is used for avoiding the fourth rod.

12. The shaft device according to any one of claims 5 to 11, characterized in that, The support member further includes a first stop part, and the first rotating shaft further includes a second stop part. The first stop part is used for abutting against the second stop part to limit the rotation of the first rotating shaft.

13. The shaft device according to any one of claims 1 to 12, characterized in that, The first rotating shaft includes a first tooth part, and the second rotating shaft includes a second tooth part. During the meshing of the first tooth part and the second tooth part, the second rotating shaft drives the first rod to perform a linear motion through the second rod.

14. The rotating shaft device according to any one of claims 1 to 13, characterized in that, The first rotating shaft includes a first convex part, and the second rotating shaft includes a second convex part, where: The first convex part is provided with a first notch. During the rotation of the first rotating shaft driving the second rotating shaft, the first notch is used for avoiding the second convex part; or, The second convex portion is provided with a second notch. During the process that the first rotating shaft does not drive the second rotating shaft to rotate, the second notch is used to cooperate with the first convex portion to prevent the second rotating shaft from rotating reversely relative to the first rotating shaft.

15. The shaft device according to claim 14, characterized in that, The second convex portion is further provided with a third notch. During the rotation of the second rotating shaft, the third notch is used to avoid the first rod member.

16. The shaft device according to any one of claims 1 to 15, characterized in that, The rotating shaft device further includes a foot pad, and the foot pad is fixedly connected to the third end of the first rod member.

17. An electronic device, characterized in that, It includes a first part, a second part and the rotating shaft device according to any one of claims 1 to 16. The first part is fixedly connected to the first rotating shaft of the rotating shaft device, and the second part is provided with an opening, wherein: The electronic device further includes a foot pad fixedly connected to the first rod member of the rotating shaft device, and a part of the foot pad is arranged outside the second part through the opening; or, A part of the foot pad of the rotating shaft device is arranged outside the second part through the opening.

18. The electronic device according to claim 17, characterized in that, The number of the rotating shaft devices is two, the two rotating shaft devices are symmetrically arranged, and each first rod member of each rotating shaft device is connected with a foot pad.

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