Rotating shaft mechanism and electronic equipment

Abstract

The invention relates to the technical field of electronic products, and discloses a rotating shaft mechanism and electronic equipment. The rotating shaft mechanism comprises a first rotating shaft assembly, a second rotating shaft and a second rotating shaft assembly. The first rotating shaft assembly comprises a first rotating shaft. The second rotating shaft assembly comprises a third rotating shaft. The first rotating shaft and the third rotating shaft are connected with the second rotating shaft. The second rotating shaft and the third rotating shaft can rotate around the first axis so that the rotating shaft mechanism can rotate from the first state to the second state. When the rotating shaft mechanism is in a first state, the first rotating shaft, the second rotating shaft and the third rotating shaft are in a first fan-shaped area on the cross section. The cross section is perpendicular to the first axis, and the circle center of the first fan-shaped area is overlapped with the first axis. When the rotating shaft mechanism is in the second state, on the cross section of the rotating shaft mechanism, the first rotating shaft, the second rotating shaft and the third rotating shaft are located in a second fan-shaped area different from the first fan-shaped area, and the circle center of the second fan-shaped area is overlapped with the first axis. According to the rotating shaft mechanism, the appearance attractiveness of the electronic equipment in the closed state and the unfolded state can be effectively improved.

Description

Technical Field

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

[0002] With the development of electronic technology, users are pursuing the aesthetic appearance and thinness of laptop computers, while also paying more attention to the computing performance of laptop computers. As the computing performance of laptop computers improves, the heat consumption of laptop computers is also increasing, so it is necessary to further improve the heat dissipation capacity of laptop computers.

[0003] Generally, a laptop computer includes a main body part and a display part, and the main body part and the display part are connected by a hinge mechanism so that the two parts can rotate relative to each other. Currently, a fan, an air inlet and a heat dissipation channel can be arranged in the main body part to dissipate heat from the laptop computer. In order to enhance the heat dissipation capacity, it is necessary to increase the space size of the air inlet and the heat dissipation channel, for example, a two-way heat dissipation channel is designed at the bottom and the tail of the main body part of the laptop computer.

[0004] After the heat dissipation channel is designed at the rear of the host part, the hinge mechanism needs to avoid the heat dissipation channel, so the arrangement of the hinge mechanism is limited. The current design scheme of the hinge mechanism will affect the appearance of the notebook computer. Summary of the invention

[0005] Some embodiments of the present application provide a hinge mechanism and an electronic device. The present application is introduced from multiple aspects below, and the embodiments and beneficial effects of the following aspects can be referenced to each other.

[0006] In the first aspect, the embodiment of the present application provides a rotating shaft mechanism. The rotating shaft mechanism includes a first rotating shaft assembly, a second rotating shaft, and a second rotating shaft assembly. Among them, the first rotating shaft assembly includes a first rotating shaft. The second rotating shaft assembly includes a third rotating shaft. The first rotating shaft and the third rotating shaft are respectively connected to the second rotating shaft. Among them, the rotation axes of the second rotating shaft and the third rotating shaft are both the first axis. The second rotating shaft and the first rotating shaft can rotate around the first axis so that the rotating shaft mechanism can rotate from the first state to the second state. Among them, when the rotating shaft mechanism rotates to the first state, on the cross section of the rotating shaft mechanism, the first rotating shaft, the second rotating shaft and the third rotating shaft are located in the first fan-shaped area. The cross section is perpendicular to the first axis, and the center of the first fan-shaped area overlaps with the first axis. When the rotating shaft mechanism rotates to the second state, on the cross section of the rotating shaft mechanism, the first rotating shaft, the second rotating shaft and the third rotating shaft are located in the second fan-shaped area different from the first fan-shaped area, and the center of the second fan-shaped area overlaps with the first axis.

[0007] The above-mentioned hinge mechanism, through the mutual cooperation of the first hinge, the second hinge and the third hinge, can effectively improve the appearance of the electronic device in the closed state and the unfolded state.

[0008] For example, after the hinge mechanism connects the tail boss of the host part of the electronic device and the display part, even if the gap between the tail boss of the host part and the display part is small, the display part will not interfere with the tail boss of the host part during the rotation process. In this way, the gap between the tail boss of the host part of the electronic device and the display part can be set as small as possible, thereby improving the appearance integrity of the electronic device in the closed state, and making the appearance lines of the electronic device more simple and aesthetic.

[0009] For another example, during the rotation of the display part, the tail side edge close to the hinge mechanism always rotates around the gap between the tail boss of the host part and the display part. Therefore, when the electronic device is in the unfolded state, the tail side edge of the display part is always located on the side of the gap that is away from the tail boss. As a result, the user will not observe the tail boss when using the electronic device normally, and the appearance lines of the electronic device in the unfolded state are relatively simple and aesthetic. In addition, since there is a small gap between the tail boss of the host part and the display part, when the electronic device is in the unfolded state, the display part and the tail boss are also visually continuous, thereby improving the appearance integrity and aesthetics of the electronic device.

[0010] In some embodiments, the first arc-shaped groove and the first arc-shaped wall are pressed against each other in a radial direction, which is perpendicular to an extension direction of the first axis.

[0011] According to an embodiment of the present application, by radially pressing the first circular arc groove and the first circular arc wall against each other, suitable elastic interference can be generated between the first circular arc wall and the first circular arc groove, so as to eliminate the fitting gap formed by manufacturing errors while ensuring that the relative friction movement between the first circular arc wall and the first circular arc groove will not get stuck, thereby avoiding the virtual position problem caused by the gap.

[0012] In some embodiments, the first arc-shaped groove includes a first groove wall and a second groove wall spaced apart in a radial direction. The shaft mechanism also includes a first clamping mechanism, which clamps the first groove wall and the second groove wall in a radial direction so that the first arc-shaped groove and the first arc-shaped wall are pressed against each other in a radial direction, thereby effectively avoiding the problem of virtual position.

[0013] In some embodiments, a first groove is formed on the first arc-shaped wall, and the first groove penetrates the first arc-shaped wall along the wall thickness direction of the first arc-shaped wall. The first clamping mechanism is fixedly connected to at least one of the first groove wall and the second groove wall, and passes through the first groove.

[0014] According to an embodiment of the present application, when the first arc-shaped groove rotates relative to the first arc-shaped wall, the first clamping mechanism can slide in the first groove, thereby stopping the rotation of the first arc-shaped groove relative to the first arc-shaped wall.

[0015] In some embodiments, the first arc-shaped wall is provided on the first rotating shaft, the first arc-shaped groove is provided on the second rotating shaft, and the first groove wall is located on the outer side of the second groove wall in the radial direction. The rotating shaft mechanism also includes a first outer sleeve. The first outer sleeve is sleeved on the outer side of the second rotating shaft in the radial direction. The first clamping mechanism passes through the first outer sleeve, the first groove wall, the first groove, and the second groove wall in the radial direction in sequence, and the two ends of the first clamping mechanism are respectively fixed to the first outer sleeve and the second groove wall.

[0016] The first outer sleeve can effectively improve the clamping reliability of the first clamping mechanism. In addition, the first outer sleeve can also be used as an appearance part to cover other parts, thereby further improving the appearance of the shaft mechanism.

[0017] In some embodiments, the first clamping mechanism is a spring screw, which can keep the first arc-shaped groove and the first arc-shaped wall in elastic contact, thereby avoiding hard friction.

[0018] In some embodiments, the groove width of the first arc-shaped groove is smaller than the wall thickness of the first arc-shaped wall, so that the first arc-shaped groove and the first arc-shaped wall are pressed against each other in the radial direction, thereby effectively avoiding the void problem.

[0019] In some embodiments, the first arc-shaped groove and the first arc-shaped wall are pressed against each other in an axial direction, and the axial direction is parallel to an extension direction of the first axis.

[0020] According to an embodiment of the present application, by pressing the first circular arc groove and the first circular arc wall against each other axially, suitable elastic interference can be generated between the first circular arc wall and the first circular arc groove, so as to eliminate the fitting gap formed by manufacturing errors while ensuring that the relative friction movement between the first circular arc wall and the first circular arc groove will not get stuck, thereby avoiding the virtual position problem caused by the gap.

[0021] In some embodiments, the rotating shaft mechanism includes a second clamping mechanism, which clamps the first arc-shaped groove and the first arc-shaped wall axially so that the first arc-shaped groove and the first arc-shaped wall are pressed against each other axially, thereby effectively avoiding the void problem.

[0022] In some embodiments, the second clamping mechanism can also be used to provide a certain torque to the shaft mechanism. For example, since the second clamping mechanism clamps the first arc-shaped groove and the first arc-shaped wall in the axial direction, there is an axial squeezing force between the two end faces of the first shaft and the second shaft, so that the fit between the first shaft and the second shaft is a friction fit. In this way, when the shaft mechanism rotates from the first state to the second state, the relative sliding between the two end faces of the first shaft and the second shaft will generate a certain torque.

[0023] In some embodiments, a second groove is formed on the first rotating shaft, and a depth direction of the second groove is parallel to the axial direction. One end of the second clamping mechanism is fixed on the second rotating shaft, and the other end is inserted into the second groove.

[0024] According to an embodiment of the present application, when the first arc-shaped groove rotates relative to the first arc-shaped wall, the second clamping mechanism can slide in the second groove, thereby stopping the rotation of the first arc-shaped groove relative to the first arc-shaped wall.

[0025] In some embodiments, the second clamping mechanism is a spring screw. The spring screw can enable the first arc-shaped groove and the first arc-shaped wall to maintain elastic contact, thereby avoiding hard friction.

[0026] In some embodiments, one of the second rotating shaft and the third rotating shaft includes a second arc-shaped groove, and the other includes a second arc-shaped wall. The axes of the second arc-shaped groove and the second arc-shaped wall are both the first axis, the second arc-shaped wall is inserted in the second arc-shaped groove, and one of the second arc-shaped groove and the second arc-shaped wall can rotate relative to the other around the first axis, so that the third rotating shaft can rotate relative to the second rotating shaft.

[0027] In some embodiments, the rotating shaft mechanism further includes a third clamping mechanism, which clamps the second arc-shaped groove and the second arc-shaped wall in a radial direction.

[0028] According to the implementation mode of the present application, the second arc-shaped groove and the second arc-shaped wall are radially pressed against each other through the third clamping mechanism, so that appropriate elastic interference can be generated between the second arc-shaped wall and the second arc-shaped groove, thereby avoiding the virtual position problem.

[0029] In some embodiments, the second rotating shaft is sleeved on the outer side of the first rotating shaft in the radial direction. The rotating shaft mechanism also includes a second outer sleeve, which is sleeved on the outer side of the second rotating shaft in the radial direction. The third clamping mechanism passes through the second outer sleeve, the second rotating shaft and the third rotating shaft in sequence in the radial direction, and the two ends of the third clamping mechanism are respectively fixed to the second outer sleeve and the third rotating shaft.

[0030] The second outer sleeve can effectively improve the clamping reliability of the third clamping mechanism. In addition, the second outer sleeve can also be used as an appearance part to cover other parts, thereby further improving the appearance of the shaft mechanism.

[0031] In some embodiments, the rotating shaft mechanism further includes a first pin shaft, a second pin shaft, a connecting rod and a slider. The first rotating shaft assembly includes a first rotating shaft bracket fixedly connected to the first rotating shaft. The first pin shaft and the second pin shaft are parallel to each other and both extend axially, and the axial direction is parallel to the extension direction of the first axis. The two ends of the connecting rod are respectively rotatably connected to the first pin shaft and the second pin shaft, the second pin shaft is rotatably connected to the slider, the first pin shaft is fixedly connected to the third rotating shaft, and the slider is slidably connected to the first rotating shaft bracket. At least one of the following connections is a friction connection: the rotation connection between the connecting rod and the first pin shaft, the rotation connection between the connecting rod and the second pin shaft, and the sliding connection between the slider and the first rotating shaft bracket.

[0032] According to the embodiment of the present application, the first pin, the second pin, the connecting rod and the slider can together constitute a crank slider mechanism. In the process of switching the rotating shaft mechanism from the first state to the second state, the connecting rod in the crank slider mechanism rotates relative to the first pin and the second pin respectively, and the slider slides relative to the first rotating shaft bracket. At least one of the rotational connection between the connecting rod and the first pin, the rotational connection between the connecting rod and the second pin, and the sliding connection between the slider and the first rotating shaft bracket is a friction connection. Therefore, the above-mentioned crank slider mechanism can cause the rotating shaft mechanism to generate a certain torque during the movement.

[0033] In some embodiments, the connecting rod includes a plurality of friction plates stacked in a direction perpendicular to the axial direction. A first axial hole is provided on the connecting rod and passes through the plurality of friction plates in the axial direction, and the connecting rod is rotatably connected to the first pin through the first axial hole. The first axial hole and the first pin are matched in a frictional manner, so that the rotational connection between the connecting rod and the first pin is a frictional connection; and / or a second axial hole is provided on the connecting rod and passes through the plurality of friction plates in the axial direction, and the connecting rod is rotatably connected to the second pin through the second axial hole. The second axial hole and the second pin are matched in a frictional manner, so that the rotational connection between the connecting rod and the second pin is a frictional connection.

[0034] The connecting rod mentioned above realizes friction connection with the first pin and / or the second pin through multiple friction plates, so that the torque generated by the rotation of the connecting rod relative to the first pin and / or the second pin can be more evenly distributed, effectively improving the stability of the torque.

[0035] In some embodiments, a first notch is opened on a friction plate located in the middle layer among the multiple friction plates, and the first notch is connected to the first axial hole; and / or, a second notch is opened on a friction plate located in the middle layer among the multiple friction plates, and the second notch is connected to the second axial hole.

[0036] According to the implementation mode of the present application, the first notch and the second notch can provide a certain elastic deformation space, thereby effectively avoiding hard contact between the first shaft hole and the first pin shaft, and between the second shaft hole and the second pin shaft, and reducing the loss caused by interference friction. Secondly, the first notch and the second notch are only provided on the friction plate of the middle layer, while the first shaft hole and the second shaft hole of the outer friction plate are still complete hole-shaped structures, which can effectively avoid the friction fit between the first pin shaft and the first shaft hole, and the friction fit between the second pin shaft and the second shaft hole becoming loose during long-term use.

[0037] In some embodiments, the cross section of the first pin is a non-circular cross section.

[0038] According to the embodiment of the present application, the third rotating shaft can be matched with the first pin shaft through a shaft hole adapted to the cross section of the first pin shaft, and the connecting rod can be matched with the first pin shaft through a circular shaft hole, so that the first pin shaft can be fixedly connected to the third rotating shaft and can also be rotatably connected to the connecting rod. In this way, the connecting rod can rotate relative to the first pin shaft under the condition of frictional cooperation with the first pin shaft, thereby generating torque.

[0039] In some embodiments, a rotation resistance structure is provided between the second rotating shaft and the third rotating shaft, and the rotation resistance structure makes the rotation resistance between the second rotating shaft and the third rotating shaft greater than the rotation resistance between the first rotating shaft and the second rotating shaft.

[0040] According to the implementation mode of the present application, the rotational resistance between the second rotating shaft and the third rotating shaft is greater than the rotational resistance between the first rotating shaft and the second rotating shaft, so that during the rotation of the second rotating shaft and the third rotating shaft, the first stroke is always the stroke of the second rotating shaft rotating relative to the first rotating shaft, and the second stroke is always the stroke of the third rotating shaft rotating relative to the second rotating shaft. In other words, during the movement of the rotating shaft mechanism, there are only two strokes, the movement trajectory is more stable, and the rotation effect is better. In addition, by taking the rotation stroke of the second rotating shaft relative to the first rotating shaft as the first stroke, interference between the second rotating shaft and other components during the rotation process can also be effectively avoided.

[0041] In some embodiments, one of the second rotating shaft and the third rotating shaft includes a second arc-shaped groove, and the other includes a second arc-shaped wall. The axes of the second arc-shaped groove and the second arc-shaped wall are both the first axis, and the second arc-shaped groove is inserted into the second arc-shaped groove and can rotate relative to the second arc-shaped wall around the first axis, so that the third rotating shaft can rotate relative to the second rotating shaft. One of the second arc-shaped groove and the second arc-shaped wall is provided with a convex ridge, and the other is provided with a groove matching the convex ridge, and the convex ridge and the groove together form a rotation resistance structure.

[0042] In some embodiments, the hinge mechanism is used in an electronic device. The first hinge assembly of the hinge mechanism further includes a first hinge bracket connected to the first hinge, and the second hinge assembly of the hinge mechanism further includes a second hinge bracket connected to the third hinge. The first hinge bracket is used to connect to the first body of the electronic device, and the second hinge bracket is used to connect to the second body of the electronic device.

[0043] In some embodiments, the central angle of the first sector area is 150° to 180°, for example, 150°, 160°, 180°, etc. The central angle of the second sector area is 220° to 320°, for example, 220°, 250°, 315°, 270°, etc.

[0044] In some embodiments, the rotation angle of the second rotation axis relative to the first rotation axis ranges from 60° to 90°, for example, 60°, 70° or 80°, etc. The rotation angle of the third rotation axis relative to the second rotation axis ranges from 60° to 90°, for example, 60°, 70° or 80°, etc.

[0045] In a second aspect, an embodiment of the present application provides an electronic device. The electronic device includes a first body, a second body, and a hinge mechanism provided by any embodiment of the first aspect of the present application. The first hinge assembly of the hinge mechanism includes a first hinge bracket connected to the first hinge. The second hinge assembly includes a second hinge bracket connected to the third hinge. The first body is connected to the first hinge bracket. The second body is connected to the second hinge bracket.

[0046] In some embodiments, the first body and the second body are spaced apart from each other, and when the rotating shaft mechanism rotates from the first state to the second state, the first axis is located in the gap between the first body and the second body.

[0047] In some embodiments, when the hinge mechanism rotates to the first state, the angle between the first body and the second body is the center angle of the first fan-shaped area, and when the hinge mechanism rotates to the second state, the angle between the first body and the second body is the center angle of the second fan-shaped area.

[0048] In some embodiments, when the hinge mechanism rotates to the first state, the gap between the first body and the second body has a dimension of 0 mm to 2 mm, for example, 0 mm, 1 mm or 2 mm, along the width direction of the electronic device.

[0049] In some embodiments, when the hinge mechanism rotates to the second state, the gap between the first body and the second body along the thickness direction of the electronic device is 0 mm to 2 mm, for example, 0 mm, 1 mm or 2 mm, etc. Alternatively, the first body and the second body overlap in the thickness direction.

[0050] In some embodiments, the first axis is parallel to the length direction of the electronic device. The first body includes a first end and a second end that are arranged opposite to each other along the width direction of the electronic device. The first body is connected to the first shaft bracket through the first end. A heat dissipation channel is provided at the second end of the first body. The heat dissipation channel can increase the heat dissipation space and improve the heat dissipation effect, thereby enabling the electronic device to have a stronger information processing capability and effectively improve the working performance of the electronic device.

[0051] It should be understood that the beneficial effects of the second aspect can refer to the description of the first aspect, and will not be repeated here. Among them, the technical effects brought about by any embodiment of the second aspect can refer to the technical effects brought about by different embodiments of the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1A A schematic diagram of a closed state of a laptop computer in an embodiment of the present application is shown;

[0053] Figure 1B A schematic diagram of an unfolded state of a laptop computer in an embodiment of the present application is shown;

[0054] Figure 1C A rear view of a laptop computer in a closed state according to an embodiment of the present application is shown;

[0055] Figure 1D An exploded view of a laptop computer in a closed state according to an embodiment of the present application is shown;

[0056] Figure 2 The exemplary arrangement of the rotating shaft mechanism in the notebook computer in some technical solutions is shown;

[0057] Figure 3 The exemplary arrangement of the rotating shaft mechanism in the notebook computer in the closed state in some other technical solutions is shown;

[0058] Figure 4 The exemplary arrangement of the rotating shaft mechanism in the notebook computer in the unfolded state in some other technical solutions is shown;

[0059] Figure 5A An exemplary arrangement of the rotating shaft mechanism in the notebook computer in the closed state in the embodiment of the present application is shown;

[0060] Figure 5B An exemplary arrangement of the rotating shaft mechanism in the notebook computer in the unfolded state in the embodiment of the present application is shown;

[0061] Fig. 6A An assembly diagram of a hinge mechanism in a first state in a notebook computer in one embodiment of the present application is shown;

[0062] Figure 6B An assembly diagram of a hinge mechanism in a second state in a notebook computer in one embodiment of the present application is shown;

[0063] Figure 6C An exploded view of a hinge mechanism in a second state in a notebook computer in one embodiment of the present application is shown;

[0064] Fig. 7A A schematic diagram of the side appearance of a laptop computer in a closed state in an embodiment of the present application is shown;

[0065] Figure 7B A schematic diagram of the top view of a laptop computer in a closed state in an embodiment of the present application is shown;

[0066] Fig. 8A A schematic diagram of the side appearance of a laptop computer in an unfolded state in an embodiment of the present application is shown;

[0067] Figure 8B A schematic diagram of the three-dimensional appearance of a laptop computer in an unfolded state in an embodiment of the present application is shown;

[0068] Fig.9A The schematic diagram of the assembly of the first rotating shaft and the second rotating shaft in the embodiment of the present application is shown;

[0069] Fig. 9B An exploded schematic diagram showing the plugging of the first rotating shaft and the second rotating shaft in the embodiment of the present application is shown;

[0070] Fig. 9C A schematic diagram of the rotation of the first rotating shaft and the second rotating shaft in the embodiment of the present application is shown;

[0071] Fig. 10A The first arc-shaped wall and the first arc-shaped groove in the embodiment of the present application are shown in FIG. Fig.9A Cross-section of the middle BB;

[0072] Fig. 10B The first arc-shaped wall and the first arc-shaped groove in the embodiment of the present application are shown in FIG. Fig. 9C Cross-section of the middle BB;

[0073] Fig.11A The figure shows an assembly diagram of the plugging of the second rotating shaft and the third rotating shaft in the embodiment of the present application;

[0074] Fig. 11B An exploded schematic diagram showing the plugging of the second rotating shaft and the third rotating shaft in the embodiment of the present application is shown;

[0075] Fig. 11C A schematic diagram of the rotation of the second rotating shaft and the third rotating shaft in the embodiment of the present application is shown;

[0076] Fig. 12AThe second arc-shaped wall and the second arc-shaped groove in the embodiment of the present application are shown. Fig.11A Cross-section of the middle CC;

[0077] Fig. 12B The second arc-shaped wall and the second arc-shaped groove in the embodiment of the present application are shown. Fig. 12A and Fig. 12C intermediate states between the states shown;

[0078] Fig. 12C The second arc-shaped wall and the second arc-shaped groove in the embodiment of the present application are shown. Fig. 11C Cross-section of the middle CC;

[0079] Fig.13A The crank slider mechanism in the rotating shaft mechanism in the embodiment of the present application is shown. Fig. 6A Cross-section of the middle DD;

[0080] Fig. 13B The crank slider mechanism in the rotating shaft mechanism in the embodiment of the present application is shown. Figure 6B Cross-section of the middle DD;

[0081] Fig.14A An assembly diagram showing the friction connection between the first pin and the connecting rod in the embodiment of the present application is shown;

[0082] Fig. 14B An exploded view showing the friction connection between the first pin and the connecting rod in the embodiment of the present application is shown;

[0083] Fig.15A An assembly diagram showing the friction connection between the slider and the first rotating shaft bracket in an embodiment of the present application is shown;

[0084] Fig. 15B An exploded view showing the friction connection between the slider and the first rotating shaft bracket in the embodiment of the present application is shown;

[0085] Fig.16A An exemplary structure of a slideway in some embodiments of the present application is shown;

[0086] Fig. 16B Another exemplary structure of a slideway in an embodiment of the present application is shown;

[0087] Fig.17A An assembly diagram of a hinge mechanism in a first state in a notebook computer in another embodiment of the present application is shown;

[0088] Fig. 17B An assembly diagram of a hinge mechanism in a second state in a notebook computer in another embodiment of the present application is shown;

[0089] Fig. 17C An exploded view of a hinge mechanism in a first state in a notebook computer in another embodiment of the present application is shown;

[0090] Fig.18A The first rotating shaft and the second rotating shaft in the embodiment of the present application are shown. Fig.17A Cross-sectional view of the EE section;

[0091] Fig.18B The first rotating shaft and the second rotating shaft in the embodiment of the present application are shown. Fig. 17B Cross-sectional view of the EE section;

[0092] Fig.19 A schematic diagram showing a first clamping mechanism fixedly connected to a first groove wall and a second groove wall in an embodiment of the present application is shown;

[0093] Fig. 20 shows an exemplary arrangement of the first clamping mechanism in some other embodiments of the present application;

[0094] Fig.21A An assembly diagram of a slider in another embodiment of the present application is shown;

[0095] Fig.21B An exploded view of a slider in another embodiment of the present application is shown;

[0096] Fig. 21C A schematic diagram showing the cooperation between the slider and the first rotating shaft bracket in another embodiment of the present application is shown;

[0097] Fig.22A An assembly diagram of a hinge mechanism in a first state in a notebook computer in another embodiment of the present application is shown;

[0098] Fig. 22B An assembly diagram of a hinge mechanism in a second state in a notebook computer in another embodiment of the present application is shown;

[0099] Fig. 22C An exploded view of a hinge mechanism in a first state in a notebook computer in another embodiment of the present application is shown;

[0100] Fig.23A The figure shows an assembly diagram of the first rotating shaft and the second rotating shaft plugged in another embodiment of the present application;

[0101] Fig. 23B An exploded schematic diagram showing the plugging of the first rotating shaft and the second rotating shaft in another embodiment of the present application is shown;

[0102] Fig.24A The third clamping mechanism in the embodiment of the present application is shown along Fig.22A Cross-section of the middle FF;

[0103] Fig. 24B The third clamping mechanism in the embodiment of the present application is shown along Fig. 22B Cross-section of the middle FF;

[0104] Fig.25 The exemplary structure of the third groove in the second rotating shaft in the embodiment of the present application is shown;

[0105] Fig.26A A structural schematic diagram 1 of the third rotating shaft in an embodiment of the present application is shown;

[0106] Fig.26B The structure of the third rotating shaft in the embodiment of the present application is shown. Figure 2 ;

[0107] Fig. 27 A schematic structural diagram of the outer sleeve in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0108] The specific implementation of the present application will be described in detail below with reference to the accompanying drawings.

[0109] The present application provides a hinge mechanism, which can be applied to electronic devices. Specifically, the electronic devices include but are not limited to notebook computers, laptop computers, tablet personal computers, e-book readers, personal digital assistants (PDAs), personal computers, headphones, glasses (e.g., augmented reality (AR) glasses, virtual reality (VR) glasses, mixed reality (MR) glasses), and other electronic devices that need to be opened and closed synchronously.

[0110] For the convenience of description, the following describes the technical solution of the present application by taking the electronic device as a laptop computer as an example. In addition, for the convenience of description, the state of the laptop computer after being closed is defined as the closed state, the state of the laptop computer after being opened is defined as the unfolded state, and the state of the laptop computer between the closed state and the unfolded state is defined as the intermediate state, or the hovering state.

[0111] Figures 1A to 1D The structure diagram of the notebook computer 1 in the embodiment of the present application is shown, wherein: Figure 1A is a schematic diagram of a closed state of a notebook computer 1, Figure 1B is a schematic diagram of the unfolded state of the notebook computer 1, Figure 1C is a rear view of the notebook computer 1 in a closed state, Figure 1D FIG. 1 is an exploded view of the laptop computer 1 in a closed state, wherein: Figure 1D The dotted arrows schematically illustrate the assembly relationship of the components in the notebook computer 1 .

[0112] Combination Figures 1A to 1D The notebook computer 1 includes a main body 01, a display part 02 and a hinge mechanism 03. The main body 01 and the display part 02 are rotatably connected via the hinge mechanism 03, so that the display part 02 can rotate relative to the main body 01 around the rotation axis L1, thereby enabling the notebook computer 1 to be in a closed state (e.g. Figure 1A shown) and the unfolded state (e.g. Figure 1B Switch between them at will.

[0113] When the notebook computer 1 is in a closed state, the angle between the main body part 01 and the display part 02 may approach 0°, that is, the main body part 01 and the display part 02 are stacked.

[0114] When the notebook computer 1 is in the unfolded state, the angle between the main unit 01 and the display unit 02 can be 90° to 150°, that is, the main unit 01 and the display unit 02 are away from each other, so that the operation area of ​​the main unit 01 (for example, Figure 1B and Figure 1D The area shown with the keyboard 12, the touchpad 13 and the fingerprint button 14) and the display area of ​​the display part 02 (for example, the area where the screen 22 is located) can be facing the user at the same time for the user to use.

[0115] In order to facilitate the subsequent description, before introducing the specific structure of each component in the notebook computer 1, this application first combines Figure 1A Define the X-axis direction, the Y-axis direction and the Z-axis direction. Among them, the X-axis direction is the length direction of the laptop computer 1. For example, the X-axis direction is parallel to the extension direction of the rotation axis L1, and the positive direction of the X-axis can be the direction from right to left when the laptop computer 1 is in normal use; the Y-axis direction is the width direction of the laptop computer 1. For example, the Y-axis direction is perpendicular to the extension direction of the rotation axis of the display part 02, and the positive direction of the Y-axis can be the direction from the back (or "tail") to the front of the laptop computer 1 in normal use; the Z-axis direction is the thickness direction of the laptop computer 1. For example, the positive direction of the Z-axis can be the direction from the bottom to the top of the laptop computer 1 in normal use. In this application, the first direction is the Y-axis direction. The second direction is the Z-axis direction. The first plane is a plane parallel to the XY plane. The height dimension or the thickness dimension is the dimension along the Z-axis direction, which will not be repeated below.

[0116] It can be understood that, in the process of switching the laptop computer 1 from the closed state to the unfolded state, the dimensions of the laptop computer 1 in the width direction and the thickness direction are gradually increased.

[0117] It can be understood that the mutual parallelism in the present application is not absolute parallelism, and the approximate parallelism caused by processing errors and assembly errors (for example, the angle between the two structural features is 0.1°) is also within the scope of the mutual parallelism in the present application. The mutual perpendicularity in the present application is not absolute perpendicularity, and the approximate perpendicularity caused by processing errors and assembly errors (for example, the angle between the two structural features is 89.9°) is also within the scope of the mutual perpendicularity in the present application. The limitations of mutual parallelism and mutual perpendicularity will not be repeated in the following text.

[0118] In addition, it should be noted that the directional terms such as "up", "down", "left", "right", "front", "back", "top" and "bottom" in this document refer to the orientation of the laptop computer 1 in normal use (for example, in normal use, the main unit 01 is located at the bottom of the laptop computer 1), and do not indicate or imply that the referred component must have a specific orientation, which may change accordingly according to actual use and should not be understood as a limitation on this application.

[0119] Continue reading Figures 1A to 1D The host part 01 includes a host body 11, a keyboard 12, a touch pad 13 and a fingerprint button 14.

[0120] The host body 11 includes a first shell 15 and a second shell 16. The first shell 15 and the second shell 16 are connected to form a receiving cavity (not shown). The receiving cavity is used to receive various electronic components, such as a processor or a memory, to process and store information.

[0121] In order to dissipate the heat of the electronic components in the accommodating cavity, a fan, a heat pipe, a heat dissipation fin and other components (not shown) are also provided in the accommodating cavity, and a heat dissipation channel is also provided on the host body 11. The heat pipe can transfer the heat generated by the electronic components to the heat dissipation fins, and the fan then dissipates the heat on the heat dissipation fins to the outside of the laptop computer 1 through the heat dissipation channel, thereby realizing the heat dissipation function of the laptop computer 1.

[0122] In some embodiments, in addition to the heat dissipation channel at the bottom, the host body 11 may also have a heat dissipation channel at the tail to improve the heat dissipation effect. Figures 1A to 1D As shown, a heat dissipation channel 18 is provided on the rear portion 17 of the first housing 15 (ie, the rear portion of the host body 11 ).

[0123] Continue reading Figure 1C and Figure 1DIn order to further improve the heat dissipation effect of the laptop computer 1, in some embodiments of the present application, the tail portion 17 of the first housing 15 includes a tail boss 19. The tail boss 19 protrudes along the positive direction of the Z axis. In this way, the height of the tail portion 17 can be effectively increased without increasing the thickness of the entire device, thereby increasing the height of the heat dissipation channel 18 (i.e., the size of the heat dissipation channel 18 along the Z axis), so that the heat dissipation channel 18 can better dissipate the heat generated by the electronic components, thereby improving the performance of the laptop computer 1.

[0124] The keyboard 12, the touchpad 13 and the fingerprint button 14 are respectively arranged on the host body 11. The keyboard 12 is used to input characters and control commands. The touchpad 13 is used to control the movement and click of the cursor. The fingerprint button 14 can be used to obtain the fingerprint information on the user's finger for identity authentication, thereby unlocking the laptop, logging into the operating system and specific applications, and performing secure payment and other operations.

[0125] The display part 02 includes a third shell 21 and a screen 22. The third shell 21 is covered on the edge of the screen 22 and the back of the screen 22 to protect the screen 22. The screen 22 is used to display information such as images and videos, and can also integrate a touch function. The screen 22 can be a flexible display screen or a rigid display screen. It can be understood that the screen 22 here can be a liquid crystal display (LCD), an organic light emitting diode (OLED) display screen or a quantum dot light emitting diode (QLED) display screen, etc.

[0126] When the heat dissipation channel 18 is opened on the rear portion 17 of the first housing 15 , the arrangement of the rotating shaft mechanism 03 will be subject to certain restrictions.

[0127] To this end, in some technical solutions, the rotating shaft mechanism can be moved forward (i.e., moved a certain distance along the positive direction of the Y-axis) to avoid the heat dissipation channel at the rear and achieve normal opening and closing. Figure 2 The following diagram shows an exemplary arrangement of the rotating shaft mechanism 03a in a notebook computer 1a in some technical solutions. Figure 2 In order to avoid the heat dissipation channel (not shown) located on the tail 17a of the host part 01a, the hinge mechanism 03a is arranged in the S1 area. One end of the hinge mechanism 03a is connected to the entity part of the host part 01a located in the S1 area, and the other end is connected to the tail 23a of the display part 02a, so that the display part 02a can rotate relative to the host part 01a around the point P0 in the direction A, thereby realizing the opening and closing of the notebook computer 1a.

[0128] In order to ensure the normal opening and closing of the laptop computer 1a, the tail 17a of the main body part 01a cannot be designed with a tail boss. Therefore, the tail 17a of the main body part 01a cannot be flush with the display part 02a in the Z-axis direction. The tail 17a of the main body part 01a and the tail 23a of the display part 02a will form a step together, which will destroy the integrity of the appearance of the laptop computer 1a and result in poor appearance integrity of the entire machine.

[0129] In some other technical solutions, the rotating shaft mechanism can also be designed to have a translational axis to achieve normal opening and closing. Figure 3 and Figure 4 The following shows an exemplary arrangement of the rotating shaft mechanism 03b in the notebook computer 1b in some other technical solutions, wherein: Figure 3 is a schematic diagram of a closed state of a laptop computer 1b, Figure 4 FIG. 1 is a schematic diagram of the unfolded state of the notebook computer 1b. Figure 3 and Figure 4 When the notebook computer 1b switches from the closed state to the unfolded state, the rotation axis of the display portion 02b moves from the P1 position to the P2 position along the positive direction of the Y axis.

[0130] Although this movable axis solution can reduce the gap G0 between the host part 01b and the display part 02b to a certain extent. However, in order to realize the opening and closing form of this movable axis, the tail 23b of the display part 02b needs to reserve a longer connecting part 231b to connect with the rotating shaft mechanism 03b. Therefore, the frame size of the display part 02b is too large, the size of the screen 22b is small, and the appearance of the notebook computer 1b is not simple enough. In addition, the rotating shaft mechanism 03b needs to use a gear rack mechanism to achieve the above-mentioned rotation effect, and the structure is relatively complex and the cost is high.

[0131] In summary, the current designs of the hinge mechanisms in notebook computers are all difficult to take into account the opening and closing function, the heat dissipation effect, and the aesthetic appearance.

[0132] In order to solve the above problems, the embodiment of the present application provides a hinge mechanism for a laptop computer. Compared with the hinge mechanism in the above technical solution, the hinge mechanism provided by the present application can realize the control of the motion trajectory through a three-section hinge, so that the rotation axis of the display part can be located at the joint between the host part and the display part. Therefore, there is no need to design a large gap between the tail boss of the host part and the display part, so as to ensure that the display part does not interfere with the tail boss of the host part during the rotation process, and the display part will not move relative to the host part along the Y-axis direction during the rotation process. The side edge of the tail of the display part can be roughly flush with the side edge of the tail boss of the host part, thereby increasing the heat dissipation space of the laptop computer while ensuring the opening and closing function and the aesthetic appearance.

[0133] The technical solution of the present application is described in detail below with reference to the accompanying drawings.

[0134] Figure 5A and Figure 5B The exemplary arrangement of the rotating shaft mechanism 03A in the notebook computer 1 in the embodiment of the present application is shown, wherein: Figure 5A is a schematic diagram of a closed state of a notebook computer 1, Figure 5B It is a schematic diagram of the notebook computer 1 in the unfolded state. FIG. 6A to FIG. 6C The exemplary structure of the rotating shaft mechanism 03A in the notebook computer 1 in one embodiment of the present application is shown, wherein: Fig. 6A is a schematic diagram of the first state of the hinge mechanism 03A, when the notebook computer 1 is in Figure 5A The closed state shown, Figure 6B is a schematic diagram of the second state of the hinge mechanism 03A, when the notebook computer 1 is in Figure 5B The expanded state is shown. Figure 6C It is an exploded view of the rotating shaft mechanism 03A in the second state, wherein the dotted arrows schematically illustrate the assembly relationship of the various components in the rotating shaft mechanism 03A.

[0135] refer to FIG. 6A to FIG. 6C Combined with Figure 5A and Figure 5B , the shaft mechanism 03A includes a first shaft assembly 10, a second component 20 and a second shaft assembly 30. The first shaft assembly 10 includes a first component 100. The second shaft assembly 30 includes a third component 300. The rotation axes of the second component 20 and the third component 300 are both the first axis L1, and the second component 20 and the third component 300 can rotate around the first axis L1. In addition, the first component 100 and the third component 300 are respectively connected to the second component 20 along the X-axis direction (as an example of the axial direction), for example, plugged.

[0136] Herein, the laptop computer 1 can be switched between the closed state and the unfolded state by the relative rotation between the first component 100, the second component 20 and the third component 300. Therefore, for ease of understanding, the first component 100, the second component 20 and the third component 300 can be respectively referred to as the first rotating shaft 100, the second rotating shaft 20 and the third rotating shaft 300. That is, the first rotating shaft 100, the second rotating shaft 20 and the third rotating shaft 300 can be respectively understood as a component in the rotating shaft mechanism, and the embodiment of the present application does not limit the form of each rotating shaft.

[0137] Specifically, when the laptop computer 1 switches from the closed state to the unfolded state, the second shaft 20 can rotate relative to the first shaft 100 about the first axis L1, and the third shaft 300 can rotate relative to the second shaft 20 about the first axis L1. For example, the rotation direction of the second shaft 20 and the rotation direction of the third shaft 300 can be: Fig. 6A and Figure 6B As the second rotating shaft 20 and the third rotating shaft 300 rotate, the rotating shaft mechanism 03A can change from a first state (eg Fig. 6A ) to a second state (eg Figure 6B ), thereby enabling the laptop computer 1 to be able to move from a closed state (e.g. Figure 5A ) to the expanded state (e.g. Figure 5B shown).

[0138] The above-mentioned hinge mechanism 03A can effectively improve the appearance of the notebook computer 1 in the closed state and the unfolded state by designing the movement tracks of the first hinge 100, the second hinge 20 and the third hinge 300. To facilitate understanding of the working principle of the hinge mechanism 03A provided by the present application and the effect of improving the appearance, the following description is made in conjunction with the notebook computer 1.

[0139] Fig. 7A and Figure 7B The schematic diagram of the appearance of the laptop computer 1 in the closed state in the embodiment of the present application is shown, wherein: Fig. 7A is a side view of the notebook computer 1, Figure 7B It is a top view of the notebook computer 1. Fig. 8A and Figure 8B The schematic diagram of the appearance of the laptop computer 1 in the unfolded state in the embodiment of the present application is shown, wherein: Fig. 8A is a side view of the notebook computer 1, Figure 8B It is a three-dimensional diagram of the notebook computer 1.

[0140] Combination FIG. 5A to FIG. 8B As mentioned above, the tail portion 17 of the host part 01 may include a tail boss 19 protruding along the positive direction of the Z axis. The tail boss 19 includes a first end 1901 and a second end 1902. The first end 1901 and the second end 1902 are arranged opposite to each other along the Y axis. The second end 1902 is provided with a heat dissipation channel (for example, the above Figures 1A to 1D The heat dissipation channel 18 shown in the figure is used to increase the heat dissipation space and improve the heat dissipation effect, thereby making the notebook computer 1 have a stronger information processing capability and effectively improving the working performance of the notebook computer 1.

[0141] The first hinge assembly 10 of the hinge mechanism 03A is connected to the tail boss 19 (as an example of the first body) of the host part 01 of the notebook computer 1. Exemplarily, the first hinge assembly 10 includes a first hinge bracket 101. The first hinge assembly 10 is fixedly connected to the first end 1901 of the tail boss 19 through the first hinge bracket 101 (for example, fastener connection, bonding or clamping, etc.).

[0142] The second hinge assembly 30 of the hinge mechanism 03A is connected to the display part 02 (as an example of the second body) of the notebook computer 1. Exemplarily, the second hinge assembly 30 includes a second hinge bracket 301. The second hinge assembly 30 is fixedly connected to the tail 23 of the display part 02 through the second hinge bracket 301 (for example, fastener connection, bonding or clamping, etc.). The second hinge bracket 301 and the third hinge 300 can be an integrated structure.

[0143] The first axis L1 of the hinge mechanism 03A may be located in a gap G1 between the rear boss 19 of the main body portion 01 and the display portion 02 .

[0144] refer to Fig. 6A Combined with Fig. 7A and Figure 7B When the rotating shaft mechanism 03A is in the first state, on the cross section of the rotating shaft mechanism 03A, the first rotating shaft 100, the second rotating shaft 20 and the third rotating shaft 300 are located in the first sector area M1. The center O1 of the first sector area M1 overlaps with the first axis L1. The cross section of the rotating shaft mechanism 03A refers to the plane in the rotating shaft mechanism 03A that is parallel to the YZ plane. It can be understood that the cross section of the rotating shaft mechanism 03A is perpendicular to the first axis L1.

[0145] In some embodiments of the present application, the center angle of the first sector area M1 can be 150° to 180°. For example, the center angle of the first sector M1 is 150° or 160°. That is, the first sector area M1 is surrounded by a minor arc and two radii, and the first rotating shaft 100, the second rotating shaft 20 and the third rotating shaft 300 together form a whole similar to a fan-shaped cylindrical structure extending along the X-axis, and its arc line is a minor arc. For another example, the center angle of the first sector area M1 is 180°, that is, the first sector area M1 is semicircular, and the first rotating shaft 100, the second rotating shaft 20 and the third rotating shaft 300 together form a whole similar to a semi-cylindrical structure extending along the X-axis.

[0146] At this time, the notebook computer 1 is in a closed state. The angle between the rear boss 19 of the host part 01 and the display part 02 may be the central angle of the first sector area M1 (eg, 150° to 180°).

[0147] Since the first axis L1 of the hinge mechanism 03A is located in the gap G1 between the rear boss 19 of the host part 01 and the display part 02, when the gap G1 is small (for example, the size of the gap G1 along the Y-axis direction can be 0.2 mm or less), there will be no interference between the display part 02 and the rear boss 19 of the host part 01 during the rotation process, so there is no need to increase the gap G1 to ensure the normal opening and closing function of the notebook computer 1.

[0148] Based on this, when the laptop computer 1 is in a closed state, there can be a small gap G1 between the rear boss 19 of the host part 01 and the display part 02 (for example, the size of the gap G1 along the Y axis direction can be 0.2 mm or less), and the rear boss 19 and the display part 02 can be flush along the Z axis direction. As a result, when the laptop computer 1 is in a closed state, the connection between the host part 01 and the display part 02 is roughly linear without forming a step, which effectively improves the appearance integrity of the laptop computer 1 in the closed state, and at the same time makes the appearance lines of the laptop computer 1 more simple and aesthetic.

[0149] refer to Figure 6B Combined with Fig. 8A and Figure 8B When the second rotating shaft 20 rotates relative to the first rotating shaft 100 about the first axis L1 along the direction A1, and the third rotating shaft 300 rotates relative to the second rotating shaft 20 about the first axis L1 along the direction A1, the rotating shaft mechanism 03A can be Fig. 6A The first state shown switches to Figure 6B The second state is shown.

[0150] When the rotating shaft mechanism 03A is in the second state, on the cross section of the rotating shaft mechanism 03A, the first rotating shaft 100, the second rotating shaft 20 and the third rotating shaft 300 are located in the second fan-shaped area M2. The second fan-shaped area M2 is different from the first fan-shaped area M1. And the circle O2 of the second fan-shaped area M2 overlaps with the first axis L1.

[0151] In some embodiments of the present application, the center angle of the second fan-shaped area M2 is 220° to 320°. For example, the center angle of the second fan-shaped area M2 is 220°, 250° or 315°. That is, the second fan-shaped area M2 is surrounded by a major arc and two radii, and the first rotating shaft 100, the second rotating shaft 20 and the third rotating shaft 300 together form a whole similar to a fan-shaped cylindrical structure extending along the X-axis, and its arc line is the major arc. For another example, the center angle of the second fan-shaped area M2 is 270°. That is, the second fan-shaped area M2 is a three-quarter circular area, and the first rotating shaft 100, the second rotating shaft 20 and the third rotating shaft 300 together form a whole similar to a three-quarter cylindrical structure extending along the X-axis.

[0152] At this time, the notebook computer 1 is in an unfolded state. The angle between the rear boss 19 of the host part 01 and the display part 02 may be the central angle of the second sector area (eg, 220° to 320°).

[0153] Since the display part 02 rotates around the first axis L1, and the first axis L1 is located in the gap G1, the display part 02 will not generate displacement along the Y-axis direction relative to the tail boss 19 of the host part 01 during the rotation process, and the size of the gap G1 between the tail boss 19 of the host part 01 and the display part 02 along the Y-axis direction is always maintained at 0mm~2mm (for example, 0mm, 1mm or 2mm).

[0154] In addition, refer to 7A to 8B , since the first axis L1 is located in the gap G1 between the tail boss 19 and the display part 02, when the display part 02 rotates around the first axis L1 relative to the tail boss 19 so that the laptop computer 1 switches between the unfolded state and the closed state, the side 231 of the tail 23 of the display part 02 always rotates around the gap G1. That is to say, when the laptop computer 1 switches between the unfolded state and the closed state, along the Y-axis direction, the side 231 of the tail 23 of the display part 02 is always located on the side of the gap G1 that is away from the tail boss 19. Based on this, when the user faces the keyboard 12 of the host part 01 and the screen 22 of the display part 02, the side 231 of the tail 23 of the display part 02 is always located in front of the tail boss 19 of the host part 01. Therefore, when the user is using the laptop computer 1 normally, the tail boss 19 will not be observed, so that the appearance lines of the laptop computer 1 in the unfolded state are relatively simple and aesthetic.

[0155] Further, as described above, since the first axis L1 is always located in the gap G1, even if the gap G1 is small, there will be no problem of interference between the display part 02 and the tail boss 19 of the host part 01 during the rotation process. That is, the gap G1 of the embodiment of the present application can be set as small as possible. It can be understood that when the gap G1 is small, when the laptop computer 1 is in the unfolded state, the gap between the side 231 of the display part 02 and the upper surface of the tail boss 19 (which can also be understood as the size of the gap G1 along the Z-axis direction) can also be small.

[0156] For example, refer to Fig. 8AIn some implementations, when the laptop computer 1 is in the unfolded state, the main unit 01 is located above the rear boss 19, and the dimension of the gap G1 between the main unit 01 and the display unit 02 along the Z-axis direction can be 0 mm to 2 mm (e.g., 0 mm, 1 mm, or 2 mm). In this way, from the user's perspective (i.e., the user's perspective facing the keyboard 12 of the main unit 01 and the screen 22 of the display unit 02), the display unit 02 and the rear boss 19 are visually continuous, thereby improving the appearance integrity and aesthetics of the laptop computer 1.

[0157] For another example, in some alternative implementations, when the laptop computer 1 is in the unfolded state, the tail boss 19 and the display part 02 overlap in the Z-axis direction. That is, the side edge 231 of the display part 02 is located below the upper surface of the tail boss 19, and the orthographic projection of the tail boss 19 on the XZ plane and the orthographic projection of the display part 02 on the XZ plane at least partially overlap. In this way, from the user's perspective, there is no gap between the tail boss 19 of the host part 01 and the tail 23 of the display part 02 in the Z-axis direction, further improving the appearance integrity and aesthetics of the laptop computer 1.

[0158] In summary, compared with the above-mentioned hinge mechanisms 03a and 03b, the hinge mechanism 03A provided in the present application can effectively improve the appearance of the laptop computer 1 in the closed state and the unfolded state through the mutual cooperation of the first hinge 100, the second hinge 20 and the third hinge 300, and has a simpler structure and lower cost.

[0159] The specific structure and installation method of each component in the rotating shaft mechanism 03A will be further introduced below in conjunction with the accompanying drawings.

[0160] In some embodiments of the present application, the first rotating shaft 100 and the second rotating shaft 20 of the rotating shaft mechanism 03A can be plugged into each other along the X-axis direction through the arc-shaped grooves and arc-shaped walls that cooperate with each other.

[0161] 9A to 9C The schematic diagram of the plugging of the first rotating shaft 100 and the second rotating shaft 20 in the embodiment of the present application is shown, wherein: Fig.9A is an assembly diagram of the first rotating shaft 100 and the second rotating shaft 20, Fig. 9B It is an exploded view of the first rotating shaft 100 and the second rotating shaft 20, wherein: Fig. 9B The dotted arrows in the figure show the assembly relationship between the first rotating shaft 100 and the second rotating shaft 20. Fig. 9C It is a schematic diagram showing that the second rotating shaft 20 rotates relative to the first rotating shaft 100 .

[0162] Combination 9A to 9C, the first rotating shaft 100 includes a first arc-shaped wall 110. The second rotating shaft 20 includes a first arc-shaped groove 210. The axes of the first arc-shaped wall 110 and the first arc-shaped groove 210 are both the first axis L1. The first arc-shaped groove 210 is inserted in the first arc-shaped wall 110 along the X-axis direction, and can rotate around the first axis L1 relative to the first arc-shaped wall 110, so that the second rotating shaft 20 can rotate around the first axis L1 relative to the first rotating shaft 31.

[0163] In some embodiments of the present application, the number of the first arc-shaped walls 110 may be two. The two first arc-shaped walls 110 are arranged at intervals along the X-axis direction. Correspondingly, the number of the first arc-shaped grooves 210 may also be two, and they correspond one to one with the two first arc-shaped walls 110 respectively. Each first arc-shaped groove 210 is inserted in the corresponding first arc-shaped wall 110. In this way, the reliability of the connection between the first rotating shaft 100 and the second rotating shaft 20 can be further improved.

[0164] Exemplarily, the second rotating shaft 20 includes two sub-rotating shafts, each of which includes a first arc-shaped groove 210. For example, the two sub-rotating shafts are respectively a first sub-rotating shaft 20' and a second sub-rotating shaft 20". The first sub-rotating shaft 20' includes a first body 200'. The first body 200' includes an outer side surface 201' and an inner side surface 202' that are arranged opposite to each other along the X-axis direction. The second sub-rotating shaft 20" includes a second body 200". The second body 200' includes an outer side surface 201" and an inner side surface 202" that are arranged opposite to each other along the X-axis direction, wherein the outer side surface 201' of the first body 200' and the outer side surface 201" of the second body 200' are arranged opposite to each other along the X-axis direction, and the inner side surface 202' of the first body 200' and the inner side surface 202" of the second body 200" are arranged opposite to each other along the X-axis direction.

[0165] The first arc-shaped groove 210 of the first sub-shaft 20' can be provided on the outer side surface 201' of the first body 200'. The first arc-shaped groove 210 of the second sub-shaft 20" can be provided on the outer side surface 201" of the second body 200". The first arc-shaped groove 210 of the first sub-shaft 20' and the first arc-shaped groove 210 of the second sub-shaft 20" are arranged opposite to each other along the X-axis direction. Alternatively, in some other alternative embodiments, the first arc-shaped groove 210 of the first sub-shaft 20' can also be provided on the inner side surface 202' of the first body 200'. The first arc-shaped groove 210 of the second sub-shaft 20" can also be provided on the inner side surface 202" of the second body 200". The first arc-shaped groove 210 of the first sub-shaft 20' and the first arc-shaped groove 210 of the second sub-shaft 20" are arranged opposite to each other along the X-axis direction. Alternatively, in some other alternative embodiments, one of the two first arcuate grooves 210 can be opened on the outer side surface 201' of the first body 200', and the other can be opened on the outer side surface 201" of the second body 200". The present application does not impose any restrictions on this, as long as the rotational connection between the first arcuate wall 110 and the first arcuate groove 210 can be achieved.

[0166] In addition, it can be understood that the present application does not impose any specific restrictions on the number of the first arc-shaped wall 110 and the first arc-shaped groove 210, as long as the use requirements and aesthetic effect of the above-mentioned laptop computer 1 can be achieved. For the convenience of description, the first arc-shaped groove 210 of the first sub-shaft 20' and its corresponding first arc-shaped wall 110 are taken as an example to describe in detail the specific structure and connection method of the first arc-shaped wall 110 and the first arc-shaped groove 210.

[0167] Specifically, the first arc-shaped groove 210 is a semi-closed groove, that is, the cross section of the first arc-shaped groove 210 is U-shaped. It can be understood that in the present application, the cross section of each component refers to a plane perpendicular to the extension direction of each component, and the cross-sectional shape refers to the shape obtained after the component is cut along the cross section, which will not be repeated below. The first arc-shaped groove 210 includes a first groove wall 211 and a second groove wall 212. The first groove wall 211 and the second groove wall 212 are arranged at intervals along the radial direction. Among them, the radial direction is a direction perpendicular to the X-axis direction, which will not be repeated below. In the radial direction, the first groove wall 211 is located on the outside of the second groove wall 212. That is, in the radial direction, the first groove wall 211 is located on the side of the second groove wall 212 that is away from the first axis L1. In other words, the first axis L1, the second groove wall 212 and the first groove wall 211 are arranged in sequence in the radial direction. It can be understood that at this time, the first groove wall 211 is farther away from the first axis L1 than the second groove wall 212.

[0168] The orthographic projection of the first arc-shaped wall 110 on the YZ plane is a semicircular ring. In the radial direction, the first arc-shaped wall 110 is located between the first groove wall 211 and the second groove wall 212. The first groove wall 211 and the second groove wall 212 can slide relative to the first arc-shaped wall 110, so that the first arc-shaped groove 210 can rotate relative to the first arc-shaped wall 110 around the first axis L1, and further the second rotating shaft 20 can rotate relative to the first rotating shaft 100 around the first axis L1.

[0169] In some embodiments of the present application, appropriate elastic interference can be applied between the first arc-shaped wall 110 and the first arc-shaped groove 210 to ensure that the relative friction movement between the first arc-shaped wall 110 and the first arc-shaped groove 210 will not get stuck, while eliminating the fitting gap formed by manufacturing errors, thereby avoiding the virtual position problem caused by the gap and improving the rotation effect of the second rotating shaft 20.

[0170] Specifically, Fig. 10A and Fig. 10B The diagram shows the rotation of the first arc-shaped slot 210 in the embodiment of the present application, wherein: Fig. 10A The first arc-shaped wall 110 and the first arc-shaped groove 210 are Fig.9A Cross-section of the BB. Fig. 10B The first arc-shaped wall 110 and the first arc-shaped groove 210 are Fig. 9C Cross-section of the BB.

[0171] Combination Fig. 10A and Fig. 10B In some feasible solutions, the groove width D1 of the first arc-shaped groove 210 is smaller than the wall thickness D2 of the first arc-shaped wall 110, so that the first arc-shaped groove 210 and the first arc-shaped wall 110 can be pressed against each other in the radial direction, thereby avoiding the problem of virtual position. For example, the fit between the first groove wall 211 and the first arc-shaped wall 110 can be a transition fit, and the fit between the second groove wall 212 and the first arc-shaped wall 110 can be an interference fit.

[0172] It can be understood that the wall thickness D2 of the first arc-shaped wall 110 is the radial dimension of the first arc-shaped wall 110. The groove width D1 of the first arc-shaped groove 210 is the radial distance between the first groove wall 211 and the second groove wall 212.

[0173] In addition, the first groove wall 211 and the second groove wall 212 can also provide a certain elastic deformation space for the first arc-shaped groove 210. By controlling the size (for example, thickness, length, etc.) of the first groove wall 211 and the second groove wall 212, the elastic deformation of the first groove wall 211 and the second groove wall 212 can be adjusted, so as to provide a more appropriate friction force for the first arc-shaped wall 110 and the first arc-shaped groove 210 according to actual needs, thereby avoiding the above-mentioned virtual position problem, effectively eliminating the loss caused by hard friction, and not interfering with the normal rotation of the first arc-shaped groove 210.

[0174] In some embodiments of the present application, a limiter may be provided between the first arcuate wall 110 and the first arcuate groove 210 to serve as a stopper to ensure that the first arcuate groove 210 does not detach from the first arcuate wall 110 when rotating to the end of the stroke.

[0175] Continue to refer Fig. 10A and Fig. 10B Combined with Fig. 9B In some feasible solutions, a stop groove 213 is provided on the first arc-shaped groove 210, and the stop groove 213 is used to stop the fastener 214 by cooperating with the fastener 214. It should be noted that, for the convenience of observation, Fig. 10A and Fig. 10B The invisible structural features in the stop groove 213 are shown in dashed lines.

[0176] Specifically, the stop groove 213 can be provided on the bottom wall of the first arc-shaped groove 210 and be in an arc shape. The depth direction of the stop groove 213 is parallel to the X-axis direction, and its axis can be the first axis L1. The fastener 214 is arranged along the X-axis direction in the first arc-shaped wall 110 and the stop groove 213, and is fixedly connected to the first arc-shaped wall 110. When the first arc-shaped groove 210 rotates relative to the first arc-shaped wall 110, the stop groove 213 can slide relative to the fastener 214. Fig. 10A As shown, when the end 2131 of the stop groove 213 contacts the fastener 214, the first arc-shaped groove 210 is located at the starting end of the stroke; Fig. 10B As shown, when the stop groove 213 slides until its end 2131 contacts the fastener 214, the first arc-shaped groove 210 is located at the end of the stroke, thereby achieving a stop function.

[0177] For example, the fastener 214 may be a screw, which is inserted into the first arc-shaped wall 110 and the stop groove 213 and is screwed together with the first arc-shaped wall 110 through a thread. Alternatively, the fastener 214 may be a pin, which is inserted into the first arc-shaped wall 110 and the stop groove 213 and is interference-fitted with the first arc-shaped wall 110.

[0178] In some alternative embodiments, the first arc-shaped wall 110 may be provided with a convex block protruding along the X-axis direction, and the stop function is achieved by the cooperation between the convex block and the stop groove 213. In some other alternative embodiments, the first arc-shaped wall 110 may be provided with a stop groove 213, and the first arc-shaped groove 210 may be provided with a convex block protruding along the X-axis direction, and the present application does not impose any specific limitation on this.

[0179] It can be understood that the rotation stroke of the above-mentioned first arc-shaped groove 210 depends on the size of the central angle of the stop groove 213 (that is, the length of the stop groove 213). Therefore, by controlling the size of the central angle of the stop groove 213, the rotation angle range of the first rotating shaft 100 and the second rotating shaft 20 can be reasonably designed, thereby further improving the rotation effect of the first arc-shaped groove 210.

[0180] If the angular range of the first rotating shaft 100 and the second rotating shaft 20 is too small, it is difficult to meet the opening and closing angle requirements of the laptop computer 1; if the angular range of the first rotating shaft 100 and the second rotating shaft 20 is too large, after the first rotating shaft 100 rotates to the end of the stroke, the connecting portion between the first rotating shaft 100 and the second rotating shaft 20 will be too small, and the connection reliability between the two will be low.

[0181] Therefore, in this embodiment, the rotation angle range of the second rotating shaft 20 relative to the first rotating shaft 100 is set to 60° to 90°. In other words, the rotation angle range of the first arc-shaped groove 210 relative to the first arc-shaped wall 110 is set to 60° to 90°. This ensures the connection reliability between the first rotating shaft 100 and the second rotating shaft 20, while meeting the large-angle opening and closing requirements of the notebook computer 1. For example, the rotation angle of the first arc-shaped groove 210 relative to the first arc-shaped wall 110 can be 60°, 70° or 80°, etc.

[0182] As described above, in some feasible solutions, the rotation angle of the first arc-shaped wall 110 and the first arc-shaped groove 210 can be controlled by adjusting the size of the center angle of the stop groove 213. For example, the center angle of the stop groove 213 can be set to 60°, so that the rotation angle of the first arc-shaped wall 110 relative to the first arc-shaped groove 210 is 60°. For another example, the center angle of the stop groove 213 can also be set to 70°, so that the rotation angle of the first arc-shaped wall 110 relative to the first arc-shaped groove 210 is 70°.

[0183] After introducing the specific structure and installation method of the first rotating shaft 100 and the second rotating shaft 20 in the rotating shaft mechanism 03A, the specific structure and installation method of the second rotating shaft 20 and the third rotating shaft 300 will be introduced in conjunction with the accompanying drawings.

[0184] In some embodiments of the present application, the second rotating shaft 20 and the third rotating shaft 300 of the rotating shaft mechanism 03A may also be plugged into each other along the X-axis direction through the arc-shaped grooves and arc-shaped walls that cooperate with each other.

[0185] FIG. 11A to FIG. 11C The schematic diagram of the plugging of the second rotating shaft 20 and the third rotating shaft 300 in the embodiment of the present application is shown, wherein: Fig.11A is an assembly diagram of the second rotating shaft 20 and the third rotating shaft 300, Fig. 11B is an exploded view of the second rotating shaft 20 and the third rotating shaft 300, wherein: Fig. 11B The dotted arrows in FIG. 1 show the assembly relationship between the second rotating shaft 20 and the third rotating shaft 300. Fig. 11C It is a schematic diagram of the rotation of the third rotating shaft 300.

[0186] Combination FIG. 11A to FIG. 11C The second rotating shaft 20 includes a second arc-shaped groove 220. The third rotating shaft 300 includes a second arc-shaped wall 310. The axes of the second arc-shaped groove 220 and the second arc-shaped wall 310 are both the first axis L1. The second arc-shaped wall 310 is inserted into the second arc-shaped groove 220 and can rotate around the first axis L1 relative to the second arc-shaped groove 220, so that the third rotating shaft 300 can rotate around the first axis L1 relative to the second rotating shaft 20.

[0187] Similarly, in some embodiments of the present application, the number of the second arc-shaped walls 310 may also be two. The two second arc-shaped walls 310 are arranged at intervals along the X-axis direction. Correspondingly, the number of the second arc-shaped grooves 220 may also be two, and they correspond one to one with the two second arc-shaped walls 310 respectively. Each second arc-shaped wall 310 is inserted into the corresponding second arc-shaped groove 220. In this way, the reliability of the connection between the second rotating shaft 20 and the third rotating shaft 300 can be further improved.

[0188] As mentioned above, the second rotating shaft 20 includes a first sub-rotating shaft 20' and a second sub-rotating shaft 20". The first sub-rotating shaft 20' and the second sub-rotating shaft 20' can respectively include a second circular arc groove 220. Among them, the second circular arc groove 220 of the first sub-rotating shaft 20' can be opened on the inner side surface 202' of the first body 200'. The second circular arc groove 220 of the second sub-rotating shaft 20" can be opened on the inner side surface 202" of the second body 200". The second circular arc groove 220 of the first sub-rotating shaft 20' and the second circular arc groove 220 of the second sub-rotating shaft 20" are arranged opposite to each other along the X-axis direction.

[0189] The specific structure of the second arc-shaped groove 220 is substantially the same as the specific structure of the first arc-shaped groove 210, so the above description of the first arc-shaped groove 210 can be referred to, and no further description is given here. In addition, the specific structure of the second arc-shaped wall 310 is substantially the same as the specific structure of the first arc-shaped wall 110, so the above description of the first arc-shaped wall 110 can be referred to, and no further description is given here.

[0190] In some embodiments of the present application, appropriate interference friction can be applied between the second arc-shaped groove 220 and the second arc-shaped wall 310 to ensure that the second arc-shaped groove 220 and the second arc-shaped wall 310 will not get stuck, while eliminating the fitting gap formed by manufacturing errors, thereby avoiding the virtual position problem caused by the gap and improving the rotation effect of the third rotating shaft 300.

[0191] The specific implementation method of applying interference friction between the second arc-shaped groove 220 and the second arc-shaped wall 310 is substantially the same as the specific implementation method of applying interference friction between the first arc-shaped wall 110 and the first arc-shaped groove 210 , and will not be repeated here.

[0192] In some embodiments of the present application, a limiter may be provided between the second arc-shaped groove 220 and the second arc-shaped wall 310 to serve as a stopper to ensure that the second arc-shaped wall 310 does not detach from the second arc-shaped groove 220 when rotating to the end of the stroke.

[0193] The principle of stopping the second arc-shaped wall 310 is substantially the same as the principle of stopping the first arc-shaped groove 210 , but the specific implementation methods are different, and the difference lies in the different structure of the limiting member.

[0194] Specifically, FIG. 12A to FIG. 12C FIG. 3 is a schematic diagram showing the rotation of the second arc-shaped wall 310 in an embodiment of the present application. Fig. 12A The second arc-shaped wall 310 and the second arc-shaped groove 220 are Fig.11A Cross-section of CC, Fig. 12C The second arc-shaped wall 310 and the second arc-shaped groove 220 are Fig. 11C Cross-section of CC, Fig. 12B The second arc-shaped wall 310 and the second arc-shaped groove 220 are Fig. 12A and Fig. 12C Schematic diagram of the intermediate state between the states shown. For easy observation, Fig. 12B and Fig. 12C The first arc-shaped wall 110 of the first rotating shaft 100 is also shown.

[0195] Combination FIG. 12A to FIG. 12C, the rotating shaft mechanism 03A also includes a first pin shaft 40. A stop groove 223 is opened on the second arc-shaped groove 220, and stopping is performed by the cooperation between the stop groove 223 and the first pin shaft 40. Among them, the first pin shaft 40 extends along the X-axis direction. One end of the first pin shaft 40 passes through a second arc-shaped wall 310 and enters the stop groove 223 of the second arc-shaped groove 220 of the first sub-rotating shaft 20', and the other end passes through another second arc-shaped wall 310 and enters the stop groove 223 of the second arc-shaped groove 220 of the second sub-rotating shaft 20". In this way, the two second arc-shaped walls 310 can be stopped at the same time by only one pin shaft 40, which effectively reduces the number of parts and improves assembly efficiency.

[0196] In some embodiments of the present application, the rotation angle range of the third rotating shaft 300 relative to the second rotating shaft 20 is set to 60° to 90°. In other words, the rotation angle range of the second arc-shaped wall 310 relative to the second arc-shaped groove 220 is set to 60° to 90°. This ensures the connection reliability of the second rotating shaft 20 and the third rotating shaft 300, while meeting the opening and closing angle requirements of the laptop computer 1. For example, the rotation angle of the second arc-shaped wall 310 relative to the second arc-shaped groove 220 can be 60°, 70° or 80°, etc.

[0197] It is understood that the rotation angle of the second arc-shaped wall 310 and the second arc-shaped groove 220 can be controlled by adjusting the center angle of the stop groove 223. For example, the center angle of the stop groove 223 can be set to 60°, so that the rotation angle of the second arc-shaped wall 310 relative to the second arc-shaped groove 220 is 60°. For another example, the center angle of the stop groove 223 can be set to 70°, so that the rotation angle of the second arc-shaped wall 310 relative to the second arc-shaped groove 220 is 70°.

[0198] After introducing the specific structures and connection methods of the first rotating shaft 100, the second rotating shaft 20 and the third rotating shaft 300, the exemplary rotation sequence between the first rotating shaft 100, the second rotating shaft 20 and the third rotating shaft 300 will be described below in conjunction with the accompanying drawings.

[0199] In some embodiments of the present application, the rotating shaft mechanism 03A is Fig. 6A The first state shown switches to Figure 6B The second state process shown, reference Fig. 12B Combined with Fig. 10A , Fig. 10B and Fig. 12A The second rotating shaft 20 first rotates relative to the first rotating shaft 100 around the first axis L1 along the direction A1 to the end of the stroke, and the second rotating shaft 20 and the third rotating shaft 300 remain relatively stationary during the rotation process. Fig. 12C , the third rotating shaft 300 then rotates relative to the second rotating shaft 20 around the first axis L1 to the end of the stroke.

[0200] On the contrary, the shaft mechanism 03A is Figure 6B The second state shown switches to Fig. 6A During the first state shown, the second rotating shaft 20 first rotates relative to the first rotating shaft 100 around the first axis L1 in the direction opposite to the A1 direction to the end of the return stroke, and the second rotating shaft 20 is relatively stationary with the third rotating shaft 300 during the rotation process. Then, the third rotating shaft 300 rotates relative to the second rotating shaft 20 around the first axis L1 in the opposite direction to the end of the return stroke.

[0201] In this way, the rotating shaft mechanism 03A has only two strokes during the motion, the motion trajectory is more stable, and the rotation effect is better. In addition, by taking the rotation stroke of the second rotating shaft 20 relative to the first rotating shaft 100 as the prior stroke, the second rotating shaft 20 can also effectively avoid interference with other components (e.g., the crank slider mechanism described below) during the rotation process.

[0202] In some feasible schemes, a rotational resistance structure can be set between the second rotating shaft 20 and the third rotating shaft 300, so that the rotational resistance between the second rotating shaft 20 and the third rotating shaft 300 is greater than the rotational resistance between the first rotating shaft 100 and the second rotating shaft 20, so that during the rotation of the second rotating shaft 20 and the third rotating shaft 300, the first stroke is always the stroke of rotation of the second rotating shaft 20 relative to the first rotating shaft 100, and the latter stroke is the stroke of rotation of the third rotating shaft 300 relative to the second rotating shaft 20.

[0203] It can be understood that the rotation resistance structure in the present application can take various forms.

[0204] In some embodiments of the present application, the rotation resistance structure may be formed by mutually engaged ridges and grooves, which will be described in detail below in conjunction with the accompanying drawings.

[0205] Continue reading Fig. 11B , Fig. 12A and Fig. 12C In some feasible solutions, the second arc-shaped groove 220 of the second rotating shaft 20 is provided with a convex ridge 224 . The second arc-shaped wall 310 of the third rotating shaft 300 is provided with a groove 311 matched with the convex ridge 224 .

[0206] Exemplarily, the convex rib 224 may be disposed on the second groove wall 222 of the second arc-shaped groove 220. Accordingly, the groove 311 may be provided on the surface of the second arc-shaped wall 310 radially opposite to the second groove wall 222. The convex rib 224 is disposed in the groove 311. When the third rotating shaft 300 rotates relative to the second rotating shaft 20, the convex rib 224 will limit the relative sliding of the groove 311, so that the rotation resistance between the second rotating shaft 20 and the third rotating shaft 300 is greater than the rotation resistance between the first rotating shaft 100 and the second rotating shaft 20.

[0207] In some implementations, the number of the ridges 224 may be multiple (e.g., two, three, or four, etc.). The multiple ridges 224 may be distributed along the circumference of the second groove wall 222. Accordingly, the number of the grooves 311 may also be multiple, so as to be engaged with the multiple ridges 224 in a one-to-one correspondence, thereby further increasing the rotation resistance between the second rotating shaft 20 and the third rotating shaft 300.

[0208] In other feasible solutions, the ridge 224 and the groove 311 may be arranged in other ways. For example, the ridge 224 may be arranged on the first groove wall 221 of the second arc-shaped groove 220. Correspondingly, the groove 311 may be provided on the surface of the second arc-shaped wall 310 radially opposite to the first groove wall 221. For another example, in other feasible solutions, the ridge 224 may be arranged on the second arc-shaped wall 310. The groove 311 may be provided on the first groove wall 221 or the second groove wall 222 of the second arc-shaped groove 220.

[0209] It is understandable that the above Fig. 11B , Fig. 12A and Fig. 12C The above only shows the structural form of some rotation resistance structures, and does not constitute a specific limitation on the implementation of the present application. For example, in some other embodiments of the present application, any contact surface of the second arc-shaped groove 220 and the second arc-shaped wall 310 may be provided with an uneven pattern (such as a herringbone pattern), and these uneven patterns may increase the relative sliding resistance between the second arc-shaped groove 220 and the second arc-shaped wall 310, thereby forming a rotation resistance structure.

[0210] In order to ensure that the display portion 02 can stably maintain a desired angular position and rotate smoothly, in some embodiments of the present application, the hinge mechanism 03A has a certain torque.

[0211] Continue reading FIG. 6A to FIG. 6C The rotating shaft mechanism 03A further comprises a first pin shaft 40, a second pin shaft 50, a connecting rod 60 and a slider 70. The first pin shaft 40, the second pin shaft 50, the connecting rod 60 and the slider 70 can together constitute a crank slider mechanism to provide torque to the rotating shaft mechanism 03A.

[0212] Specifically, Fig.13A and Fig. 13B The exemplary structure of the crank slider mechanism in the rotating shaft mechanism 03A in the embodiment of the present application is shown, wherein: Fig.13A For the shaft mechanism 03A Fig. 6A Cross-section of DD, Fig. 13B For the shaft mechanism 03A Figure 6B Cross-section of DD.

[0213] refer to Fig.13A and Fig. 13B Combined with FIG. 6A to FIG. 6C , the first pin 40 and the second pin 50 are parallel to each other and both extend along the X-axis direction. The first pin 40 is fixedly connected to the third rotating shaft 300. The two ends of the connecting rod 60 are rotatably connected to the first pin 40 and the second pin 50 respectively. The second pin 50 is also fixedly connected to the slider 70. The slider 70 is slidably connected to the first rotating shaft bracket 101. The sliding direction of the slider 70 is parallel to the Y-axis direction. For example, a slide groove 102 is provided on the first rotating shaft bracket 101. The slider 70 is arranged in the slide groove 102 and can slide relative to the slide groove 102 along the Y-axis direction.

[0214] Among them, the first pin shaft 40 is fixedly connected to the third rotating shaft 300, which can prevent the first pin shaft 40 from rotating relative to the third rotating shaft 300 during the process of the third rotating shaft 300 rotating relative to the second rotating shaft 20, resulting in the connecting rod 60 being unable to rotate relative to the first pin shaft 35.

[0215] The second pin shaft 50 is fixedly connected to the slider 70 , which can prevent the second pin shaft 50 from rotating relative to the slider 70 , causing the connecting rod 60 to be unable to rotate relative to the second pin shaft 50 .

[0216] At least one of the following connections is a friction connection: the rotational connection between the connecting rod 60 and the first pin shaft 40 , the rotational connection between the connecting rod 60 and the second pin shaft 50 , and the sliding connection between the slider 70 and the first rotating shaft bracket 101 .

[0217] Among them, friction connection means that there is a certain friction force between the two surfaces of the two parts that match. When the two parts are not subjected to external force or the external force they are subjected to is smaller than the friction force, the two parts of the friction connection can remain relatively still under the action of the friction force; when the external force they are subjected to is larger than the friction force, the two parts of the friction connection can produce relative movement.

[0218] For example, when the rotational connection between the first pin shaft 40 and the connecting rod 60 is a friction connection, there is a friction force F1 between the two surfaces (for example, the outer peripheral surface of the first pin shaft 40 and the inner wall of the first shaft hole 610 described below) that match the first pin shaft 40 and the connecting rod 60. When the first pin shaft 40 and the connecting rod 60 are not subjected to an external force or the external force subjected to the first pin shaft 40 and the connecting rod 60 is less than the friction force F1, the first pin shaft 40 and the connecting rod 60 can remain relatively stationary under the action of the friction force F1; when the first pin shaft 40 and the connecting rod 60 are subjected to an external force greater than the friction force F1, the first pin shaft 40 and the connecting rod 60 can generate relative rotation.

[0219] For another example, when the sliding connection between the slider 70 and the first rotating shaft bracket 101 is a friction connection, there is a friction force F2 between the two surfaces of the slider 70 and the first rotating shaft bracket 101 (for example, the two surfaces of the upper elastic arm 710 and the upper bracket 101' described below, and the two surfaces of the lower elastic wall 720 and the lower bracket 101"). When the slider 70 and the first rotating shaft bracket 101 are not subjected to external force or the external force applied is less than the friction force F2, the slider 70 and the first rotating shaft bracket 101 can remain relatively still under the action of the friction force F2; when the slider 70 and the first rotating shaft bracket 101 are subjected to an external force greater than the friction force F2, relative sliding can occur between the slider 70 and the first rotating shaft bracket 101.

[0220] Since, during the process of the rotation shaft mechanism 03A switching from the first state to the second state, the connecting rod 60 in the crank slider mechanism rotates relative to the first pin 40 and the second pin 50, respectively, and the slider 70 slides relative to the first rotation shaft bracket 101, and at least one of the rotation connection between the connecting rod 60 and the first pin 40, the rotation connection between the connecting rod 60 and the second pin 50, and the sliding connection between the slider 70 and the first rotation shaft bracket 101 is a friction connection. Therefore, the above crank slider mechanism can make the rotation shaft mechanism 03A generate a certain torque during the movement, so that the rotation shaft mechanism 03A can play the role of supporting the display part 02.

[0221] In addition, the movement trajectories of the first pin 40, the second pin 50, the connecting rod 60 and the slider 70 in the above-mentioned crank slider structure are located in the internal arc space formed by the cooperation of the first rotating shaft 100, the second rotating shaft 20 and the third rotating shaft 300, thereby effectively improving the utilization rate of the existing space, helping to realize the miniaturized design of the rotating shaft mechanism 03A, and making the appearance of the rotating shaft mechanism 03A more refined and compact.

[0222] Several specific implementation schemes for providing torque by crank slider mechanisms are introduced one by one below in conjunction with the accompanying drawings.

[0223] In some feasible solutions, the rotational connection between the connecting rod 60 and the first pin shaft 40 is a friction connection, and the connecting rod 60 will generate a torsional force during the relative rotation with the first pin shaft 40 to support the display part 02 .

[0224] Fig.14A and Fig. 14B A schematic diagram showing the friction connection between the first pin 40 and the connecting rod 60 in the embodiment of the present application is shown, wherein: Fig.14A is an assembly diagram of the first pin 40 and the connecting rod 60, Fig. 14B is an exploded view of a portion of the structure of the first pin 40 and the connecting rod 60, wherein Fig. 14B The dotted arrows in the figure show the assembly relationship between the first pin shaft 40 and the various components in the connecting rod 60.

[0225] refer to Fig.14A and Fig. 14B The connecting rod 60 includes a plurality of friction plates 600. The plurality of friction plates 600 are stacked in the X-axis direction. A first shaft hole 610 is also provided on the connecting rod 60. The first shaft hole 610 penetrates the plurality of friction plates 600 in the X-axis direction. The first pin 40 is inserted into the first shaft hole 610 so as to be rotatably connected with the connecting rod 60. Moreover, the cooperation between the first pin 40 and the first shaft hole 610 is a friction cooperation, so that the rotational connection between the first pin 40 and the connecting rod 60 is a friction connection.

[0226] The connecting rod 60 mentioned above realizes friction connection with the first pin shaft 40 through multiple friction plates 600, so that the torque generated by the rotation of the connecting rod 60 relative to the first pin shaft 40 can be more evenly distributed, effectively improving the stability of the torque.

[0227] In some of the implementations, the implementation principle of the friction fit between the first pin shaft 40 and the first shaft hole 610 may be consistent with the implementation principle of applying interference friction between the first arc-shaped wall 110 and the first arc-shaped groove 210. For example, the shaft diameter of the first pin shaft 40 may be larger than the hole diameter of the first shaft hole 610, that is, the first pin shaft 40 and the first shaft hole 610 are interference fit, so that the first pin shaft 40 and the first shaft hole 610 can be pressed against each other along their radial direction, thereby achieving friction fit. In addition, the mutual compression between the first pin shaft 40 and the first shaft hole 610 can also eliminate the fitting clearance formed by the manufacturing error while ensuring that the connecting rod 60 and the first pin shaft 40 will not get stuck, thereby avoiding the virtual position problem caused by the clearance.

[0228] Alternatively, in some other alternative implementations, uneven patterns may be formed on the outer circumferential surface of the first pin shaft 40 and the inner wall of the first shaft hole 610 to increase the friction between the first pin shaft 40 and the first shaft hole 610, thereby achieving friction fit. This application does not limit this, as long as a certain friction can be achieved between the first pin shaft 40 and the first shaft hole 610.

[0229] Continue reading Fig.14A and Fig. 14BIn some embodiments of the present application, a first notch 611 is provided on a friction plate (e.g., friction plate 600a) located in the middle layer of the multiple friction plates 600. The friction plate in the middle layer refers to a friction plate located between any two adjacent friction plates along the X-axis direction. The first notch 611 is connected to the first shaft hole 610. The first notch 611 can provide a certain elastic deformation space, thereby effectively avoiding hard contact between the first shaft hole 610 and the first pin 40, and reducing the loss caused by interference friction. Secondly, only the first notch 611 is provided on the friction plate in the middle layer, while the first shaft hole 610 of the outer friction plate (e.g., friction plate 600b) is still a complete hole-shaped structure, which can effectively avoid the friction fit between the first pin 40 and the first shaft hole 610 from becoming loose during long-term use, thereby causing the torque to become smaller.

[0230] Continue reading Fig.13A and Fig. 13B In some embodiments of the present application, the cross section of the first pin 40 is a non-circular cross section, that is, the cross section of the first pin 40 is a non-circular shape. The cross section of the shaft hole on the third rotating shaft 300 for penetrating the first pin 40 is adapted to the cross section of the first pin 40. The shape of the first shaft hole 610 of the connecting rod 60 is roughly circular, so that the first pin 40 can be rotatably connected to the connecting rod 60 while being fixedly connected to the third rotating shaft 300. For example, the cross section of the first pin 40 can be in the shape of an arc. For example, in other alternative embodiments, the cross section of the first pin 40 can also be in the shape of a fan or other irregular shapes, etc., which is not limited by the present application. Any cross section of the first pin 40 that can simultaneously realize the fixed connection of the first pin 40 with the third rotating shaft 300 and the rotatable connection of the first pin 40 with the connecting rod 60 is within the protection scope of the present application. In addition, as mentioned above, in some embodiments, the first pin shaft 40 can also be used to stop the two pairs of second arc-shaped grooves 220 and the second arc-shaped walls 310, thereby effectively reducing the number of parts and improving assembly efficiency.

[0231] In some feasible solutions, the rotational connection between the connecting rod 60 and the second pin shaft 50 is a friction connection, and the connecting rod 60 generates a torsion force during the rotation relative to the second pin shaft 50 to support the display portion 02. In addition, while ensuring that the connecting rod 60 and the second pin shaft 50 will not get stuck, the matching gap formed by the manufacturing error can be eliminated, thereby avoiding the virtual position problem caused by the gap.

[0232] For more details, see Fig.14A and Fig. 14B, a second shaft hole 620 is provided on the connecting rod 60. The second shaft hole 620 penetrates the plurality of friction plates 600 along the X-axis direction. The second pin shaft 50 is penetrated in the second shaft hole 620. It can be rotatably connected with the connecting rod 60. Moreover, the cooperation between the second pin shaft 50 and the second shaft hole 620 is a friction cooperation, so that the rotational connection between the second pin shaft 50 and the connecting rod 60 is a friction connection. The connecting rod 60 realizes the friction connection with the second pin shaft 50 through the plurality of friction plates 600, so that the torque generated by the rotation of the connecting rod 60 relative to the second pin shaft 50 can be more evenly distributed, thereby effectively improving the stability of the torque.

[0233] It can be understood that the specific implementation method of the friction cooperation between the second pin shaft 50 and the second shaft hole 620 is consistent with the specific implementation method of the friction cooperation between the first pin shaft 40 and the first shaft hole 410 mentioned above. Therefore, you can refer to the above description of the friction cooperation between the first pin shaft 40 and the first shaft hole 610 and will not repeat it here.

[0234] In some embodiments of the present application, a second notch 621 is provided on a friction plate (e.g., friction plate 600a) located in the middle layer of the multiple friction plates 600. The second notch 621 is connected to the first shaft hole 364. The second notch 621 can provide a certain elastic deformation space, thereby effectively avoiding hard contact between the second shaft hole 620 and the second pin 50, and reducing the loss caused by interference friction. Secondly, only the second notch 621 is provided on the friction plate of the middle layer, while the second shaft hole 620 of the outer friction plate (e.g., friction plate 600b) is still a complete hole-shaped structure, which can effectively prevent the friction fit between the second pin 50 and the second shaft hole 620 from becoming loose during long-term use, thereby causing the torque to become smaller.

[0235] In some embodiments of the present application, the cross section of the second pin 50 is also a non-circular cross section, that is, the cross section of the second pin 50 is a non-circular shape (for example, an arcuate shape or a fan shape, etc.). The cross section of the shaft hole on the slider 70 for penetrating the second pin 50 is adapted to the cross section of the second pin 50. The second shaft hole 620 of the connecting rod 60 is roughly circular, so that the second pin 50 can be rotatably connected to the connecting rod 60 while being fixedly connected to the slider 70.

[0236] In some feasible solutions, the sliding connection between the slider 70 and the first pivot bracket 101 is a friction connection, and the slider 70 will generate a torsion force when sliding relative to the first pivot bracket 101 along the Y-axis direction to support the display part 02.

[0237] Fig.15A and Fig. 15B A schematic diagram showing the friction connection between the slider 70 and the first rotating shaft bracket 101 in the embodiment of the present application is shown, wherein: Fig.15AFIG. 1 is an assembly diagram of the slider 70 and the first rotating shaft bracket 101. Fig. 15B It is an exploded view of the slider 70 and the first rotating shaft bracket 101.

[0238] refer to Fig.15A and Fig. 15B In some of the implementations, the implementation principle of the friction fit between the slider 70 and the first rotating shaft bracket 101 can be consistent with the implementation principle of applying interference friction between the first arc-shaped wall 110 and the first arc-shaped groove 210. For example, the groove width D3 of the slide groove 102 is smaller than the thickness D4 of the slider 70, that is, the slide groove 102 and the slider 70 are interference fit, so that the slide groove 102 and the slider 70 can be pressed against each other along the Z-axis direction, thereby achieving friction fit. In addition, the slide groove 102 and the slider 70 are pressed against each other, and the fit gap formed by the manufacturing error can be eliminated while ensuring that the slider 70 and the first rotating shaft bracket 101 will not get stuck, thereby avoiding the virtual position problem caused by the gap.

[0239] In some embodiments of the present application, the slider 70 includes an upper elastic arm 710 and a lower elastic arm 720. The upper elastic arm 710 and the lower elastic arm 720 both extend along the X-axis direction and are arranged relatively along the Z-axis direction. The upper elastic arm 710 is elastically extruded and matched with the upper groove wall 1021 of the slide groove 102, and the lower elastic wall 720 is elastically extruded and matched with the lower groove wall 1022 of the slide groove 102. The upper elastic arm 710 and the lower elastic arm 720 can provide a certain elastic deformation space for the slider 70, so that the slider 70 can maintain elastic contact with the first rotating shaft bracket 101, avoiding the loss caused by hard friction and improving the reliability of use.

[0240] In some embodiments of the present application, the slider 70 may include multiple pairs (e.g., two pairs, three pairs, etc.) of elastic arms to further increase the elastic deformation space, wherein a pair of elastic arms includes an upper elastic arm 710 and a lower elastic arm 720 arranged opposite to each other along the Z-axis direction.

[0241] For example, Fig.15A and Fig. 15B As shown, the two pairs of elastic arms are arranged at intervals along the X-axis direction and connected by the entity part 730. That is to say, the two upper elastic walls 710 are arranged at opposite ends of the entity part 730 along the X-axis direction, the two lower elastic walls 720 are arranged at opposite ends of the entity part 730 along the X-axis direction, and the upper elastic wall 710 and the lower elastic wall 720 located at the same end of the entity part 730 are arranged at intervals along the Z-axis direction. Among them, the two pairs of elastic arms can effectively increase the elastic deformation space of the slider 70, and at the same time, the entity part 730 connected between the two pairs of elastic arms can also ensure that the slider 70 has a certain strength, thereby further improving the reliability of the slider 70.

[0242] In some other implementations, a resistance mechanism may be provided between the slider 70 and the first shaft support 101 to increase the sliding resistance of the slider 70 relative to the first shaft support 101, thereby improving the virtual position problem caused by manufacturing errors. For example, the resistance mechanism may include a spring, a spring sheet, a damping rubber, etc. Along the Y-axis direction, the spring is provided between the slider 70 and the first shaft support 101, and the two ends of the spring are connected to the slider 70 and the first shaft support 101, respectively. When the slider 70 slides relative to the first shaft support 101 along the Y-axis direction, the spring provides a certain resistance to the slider 70.

[0243] Continue reading Fig.15A and Fig. 15B Combined with FIG. 6A to FIG. 6C In order to reduce the difficulty of assembling the slider 70 and the first rotating shaft bracket 101, in some embodiments of the present application, the first rotating shaft bracket 101 includes an upper bracket 101' and a lower bracket 101". The upper bracket 101' and the lower bracket 101" are arranged opposite to each other along the Z-axis direction and are fixedly connected (for example, fastener connection, bonding or clamping, etc.). Among them, the slide groove 102 of the first rotating shaft bracket 101 is opened on the upper bracket 101' and the lower bracket 101". That is, the slide groove 102 of the first rotating shaft bracket 101 is surrounded by the upper bracket 101' and the lower bracket 101". In this way, the slider 70 can be placed on any one of the upper bracket 101' and the lower bracket 101", and then the other bracket is covered on the bracket, so that the slider 70 can be located in the slide groove 102 surrounded by the upper bracket 101' and the lower bracket 101", and then the assembly of the slider 70 and the first rotating shaft bracket 10 is completed, which effectively reduces the difficulty of assembly.

[0244] The exemplary structure of the slide slot 102 is described in detail below with reference to the accompanying drawings.

[0245] In some of these implementations, see Fig.15A and Fig. 15B Combined with Figure 6C A first notch 1011 ′ is formed on the upper bracket 101 ′, and the first notch 1011 ′ and the surface of the lower bracket 101 ″ together form a slide groove 102 of the first rotating shaft bracket 101 .

[0246] Fig.16A FIG. 1 shows an exemplary structure of a slide slot 102 in some embodiments of the present application. In some other alternative implementations, such as Fig.16A As shown, a second notch 1011 ″ is formed on the lower bracket 101 ′, and the second notch 1011 ″ and the surface of the upper bracket 101 ′ together form a slide groove 102 of the first rotating shaft bracket 101 .

[0247] Fig. 16BFIG. 1 shows another exemplary structure of the slide groove 102 in the embodiment of the present application. In some alternative implementations, such as Fig. 16B As shown, a first notch 1011 ′ is formed on the upper bracket 101 ′. A second notch 1011 ″ is formed on the lower bracket 101 ′. The first notch 1011 ′ and the second notch 1011 ″ together form a slide groove 102 of the first rotating shaft bracket 101 .

[0248] FIG. 17A to FIG. 17C FIG. 1 shows an exemplary structure of a rotating shaft mechanism 03B in a notebook computer 1 in another embodiment of the present application, wherein: Fig.17A is a schematic diagram of the first state of the rotating shaft mechanism 03B, Fig. 17B is a schematic diagram of the second state of the rotating shaft mechanism 03B, Fig. 17C This is an exploded view of the shaft mechanism 03B in the first state. For easy observation, Fig.17A and Fig. 17B The outer sleeve 80 is not shown. Fig. 17C The dotted arrows show the assembly relationship of the various components in the rotating shaft mechanism 03B.

[0249] and FIG. 6A to FIG. 6C Compared with the rotating shaft mechanism 03A shown, FIG. 17A to FIG. 17C The difference of the rotating shaft mechanism 03B shown is that the interference friction between the first rotating shaft 100 and the second rotating shaft 20 is different, the way of stopping the rotation connection between the first rotating shaft 100 and the second rotating shaft 20 is different, and the way of realizing the friction connection between the slider 70 and the first rotating shaft bracket 101 is different. They are introduced one by one below.

[0250] Fig.18A The first rotating shaft 100 and the second rotating shaft 20 in the embodiment of the present application are shown. Fig.17A Cross-sectional view of section EE in FIG. Fig.18B The first rotating shaft 100 and the second rotating shaft 20 in the embodiment of the present application are shown. Fig. 17B Cross-sectional view of section EE in FIG.

[0251] refer to Fig.18A and Fig.18B And combined with 17A to Fig. 17C The shaft mechanism 03B further includes a first clamping mechanism 230. The first clamping mechanism 230 can clamp the first groove wall 211 and the second groove wall 212 of the first arc-shaped groove 210 in the radial direction, so that the first arc-shaped wall 110 and the first arc-shaped groove 210 can be pressed against each other in the radial direction, thereby avoiding the problem of virtual position.

[0252] An exemplary clamping method of the first clamping mechanism 230 is described below with reference to the accompanying drawings.

[0253] In some embodiments of the present application, a first groove 111 is formed on the first arc-shaped wall 110. The first groove 111 penetrates the first arc-shaped wall 110 along the wall thickness direction of the first arc-shaped wall 110. The first clamping mechanism 230 is inserted into the first groove 111 in the radial direction, and its two ends are fixedly connected to at least one of the first groove wall 211 and the second groove wall 212.

[0254] For example Fig.18A and Fig.18B As shown, the rotating shaft mechanism 03B further includes an outer sleeve 80 (as an example of a first outer sleeve), and the first clamping mechanism 230 can be fixedly connected to the outer sleeve 80 and the second groove wall 212 .

[0255] Specifically, the outer sleeve 80 is radially sleeved on the outside of the second rotating shaft 20. The first clamping mechanism 230 is radially penetrated in the second groove wall 212, the first groove 111, the first groove wall 211 and the outer sleeve 80 in sequence. In addition, the two ends of the first clamping mechanism 230 are fixedly connected to the outer sleeve 80 and the second groove wall 212 respectively, so that the clamping reliability of the first clamping mechanism 230 can be effectively improved. In addition, the outer sleeve 80 can also be used as an appearance part to cover other parts (for example, the connecting rod 60), thereby further improving the appearance of the rotating shaft mechanism 03B.

[0256] In some embodiments of the present application, the outer sleeve 80 includes a connecting portion 810 protruding radially close to the second groove wall 212. One end of the first clamping mechanism 230 can be inserted into the connecting portion 810 to achieve a fixed connection with the outer sleeve 80. Since the connecting portion 810 protrudes radially close to the second groove wall 212, the space of the first arc-shaped groove 210 itself can be fully utilized, and the contact area between the outer sleeve 80 and the first clamping mechanism 230 is effectively increased without additionally increasing the size of the rotating shaft mechanism 03B, thereby further improving the clamping reliability of the first clamping mechanism 230.

[0257] Exemplarily, the first clamping mechanism 230 may be a spring screw, including a locking screw 231 and a spring leaf 232. The locking screw 231 of the first clamping mechanism 230 is radially arranged in sequence through the spring leaf 232, the second groove wall 212, the first groove 111, the first groove wall 211 and the connecting portion 810 of the outer sleeve 80. In addition, the tail of the locking screw 231 is fixedly connected to the connecting portion 810 of the outer sleeve 80 through a thread. Thus, the clamping function is realized. Among them, the spring leaf 232 of the first clamping mechanism 230 can enable the locking screw 231 to maintain elastic contact with the second groove wall 212, thereby avoiding hard friction.

[0258] Alternatively, in some alternative implementations, the first clamping mechanism 230 may also be a bolt and a nut. The tail of the bolt passes through the second groove wall 212, the first groove 111, the first groove wall 211 and the outer sleeve 80 in sequence, and extends to the side of the outer sleeve 80 facing away from the first groove wall 211, and the nut is screwed on the tail of the bolt to achieve the clamping function.

[0259] Alternatively, in some other alternative implementations, the first clamping mechanism 230 may also be a pin. The two ends of the pin are inserted into the outer sleeve 80 and the second groove wall 212, and are respectively pressed against the outer sleeve 80 and the second groove wall 212 along the radial direction, thereby achieving the clamping function.

[0260] In some other feasible solutions, both ends of the first clamping mechanism 230 may also be fixedly connected to the first groove wall 211 and the second groove wall 212 respectively. Fig.19 FIG. 2 is a schematic diagram showing a first clamping mechanism 230 fixedly connected to the first groove wall 211 and the second groove wall 212 in an embodiment of the present application. Fig.19 The locking screw 231 of the first clamping mechanism 230 is radially inserted into the spring leaf 232, the second groove wall 212, the first groove 111 and the first groove wall 211 in sequence. In addition, the tail of the locking screw 231 is fixedly connected to the first groove wall 211 through a thread.

[0261] It is understandable that the above FIG. 18A to FIG. 19 The configuration of the first clamping mechanism 230 is only schematically shown. In some other embodiments, the first clamping mechanism 230 may also have other configurations to achieve radial clamping of the first groove wall 211 and the second groove wall 212 of the first arc-shaped groove 210 .

[0262] For example, Fig. 20 FIG. 2 shows exemplary configurations of the first clamping mechanism 230 in some other embodiments of the present application. Fig. 20 In some other embodiments of the present application, the first clamping mechanism 230 may also be fixedly connected only to the first groove wall 211 and the second groove wall 212, without passing through the first groove wall 211. Specifically, the first clamping mechanism 230 may be an elastic clamping claw, and the elastic clamping claw includes a first elastic clamping portion 231' and a second elastic clamping portion 232'. The first elastic clamping portion 231' is elastically pressed and matched with the first groove wall 211, and the second elastic clamping portion 232' is elastically pressed and matched with the second groove wall 212, so as to clamp the first groove wall 211 and the second groove wall 212 together, thereby being able to clamp the first arc-shaped groove 210 and the first arc-shaped wall 110 located in the first arc-shaped groove 210 in the radial direction.

[0263] Continue reading Fig.18A and Fig.18BIn some embodiments of the present application, based on the first clamping mechanism 230 being radially inserted into the first groove 111, the matching first clamping mechanism 230 and the first groove 111 can also be used together to stop the rotation of the first arc-shaped groove 210 relative to the first arc-shaped wall 110.

[0264] Specifically, when the first arc-shaped groove 210 rotates relative to the first arc-shaped wall 110, the first clamping mechanism 230 can slide relative to the first groove 111. Fig.18A As shown, when the first clamping mechanism 230 is located at the end 1111 of the first groove 111, the first arc-shaped groove 210 is located at the starting end of the stroke; Fig.18B As shown, when the first clamping mechanism 230 is located at the end 1112 of the first groove 111, the first arc-shaped groove 210 is located at the end of the stroke, thereby achieving a stop function.

[0265] In some embodiments of the present application, the sliding connection between the slider 70 and the first pivot bracket 101 can be a friction connection, so that the slider 70 will generate torque when sliding along the Y-axis direction relative to the first pivot bracket 101 to support the display part 02, and the virtual position problem can be effectively avoided.

[0266] Specifically, FIG. 21A to FIG. 21C A schematic diagram showing the friction connection between the slider 70 and the first rotating shaft bracket 101 in another embodiment of the present application is shown, wherein: Fig.21A is an assembly diagram of the slider 70, Fig.21B is an exploded view of the slider 70, Fig. 21C It is a schematic diagram of the cooperation between the slider 70 and the first rotating shaft bracket 101 .

[0267] refer to FIG. 21A to FIG. 21C The slider 70 includes a slider body 710' and an elastic member 720'. The elastic member 720' is fixed to the slider body 710', for example, by fastening, bonding or clamping.

[0268] Along the Z-axis direction, the elastic member 720' is located between the slider body 710' and the lower groove wall 1022 of the slide groove 102, and is elastically extruded and matched with the lower groove wall 1022, so that the slide groove 102 and the slider 70 can be pressed against each other along the Z-axis direction, thereby realizing friction connection between the slide groove 102 and the slider 70.

[0269] In addition, the elastic member 720 ′ can also provide a certain elastic deformation space for the slider 70 , so that the slider 70 can maintain elastic contact with the first shaft bracket 101 , avoiding the loss caused by hard friction and improving the reliability of the slider 70 and the first shaft bracket 101 .

[0270] In some embodiments of the present application, the slider 70 may include multiple (eg, two, three, etc.) elastic members 720' to further increase the elastic deformation space. FIG. 21A to FIG. 21C As shown, two elastic members 720 ′ are spaced apart at two ends of the slider body 710 ′ along the X-axis direction, and are elastically pressed and matched with the lower groove wall 1022 of the sliding groove 102 respectively.

[0271] In some embodiments of the present application, when the number of elastic members 720 ′ is three or more, the plurality of elastic members 720 ′ may be arranged on the slider body 710 ′ at equal intervals along the X-axis direction to further improve the uniformity of elastic contact between the slider 70 and the first rotating shaft bracket 101 .

[0272] In some embodiments of the present application, a mounting groove 730' adapted to the elastic member 720' is provided on the slider body 710' of the slider 70. The elastic member 720' is fixedly mounted on the mounting groove 730'. In this way, the elastic member 720' can realize dimension reuse with the slider body 710' in the Z-axis direction, and while ensuring that the slider body 710' and the elastic member 720' have sufficient elasticity, the space occupied by the elastic member 720' in the Z-axis direction can be effectively reduced, thereby further reducing the width of the slide groove 102, and further reducing the thickness of the first rotating shaft bracket 101, which is conducive to the miniaturization design of the rotating shaft mechanism 03B.

[0273] In addition, the other structures and deformation modes of the above-mentioned rotating shaft mechanism 03B are the same as those of the above-mentioned FIG. 6A to FIG. 6C The rotating shaft mechanism 03A shown is substantially the same. For example, the cooperation mode between the first rotating shaft 100 and the second rotating shaft 20 of the rotating shaft mechanism 03B is substantially the same as that of the rotating shaft mechanism 03A. Therefore, reference may be made to the above description of the rotating shaft mechanism 03A and no further elaboration is given here.

[0274] FIG. 22A to FIG. 22C FIG. 2 shows an exemplary structure of a rotating shaft mechanism 03C in another embodiment of the present application. Fig.22A is a schematic diagram of the first state of the rotating shaft mechanism 03, Fig. 22B is a schematic diagram of the second state of the rotating shaft mechanism 03C, Fig. 22C This is an exploded view of the shaft mechanism 03C in the first state. For easy observation, Fig.22A and Fig. 22B The outer sleeve 80' is not shown. Fig. 22C The dotted arrows in the figure show the assembly relationship of the various components in the rotating shaft mechanism 03C.

[0275] and FIG. 6A to FIG. 6CCompared with the rotating shaft mechanism 03A shown in the figure, the rotating shaft mechanism 03C is different in that the matching mode among the first rotating shaft 100, the second rotating shaft 20 and the third rotating shaft 300, and the implementation mode of generating torque are different, which are described one by one in conjunction with the accompanying drawings below.

[0276] Fig.23A and Fig. 23B FIG. 1 is a schematic diagram showing the plugging of the first rotating shaft 100 and the second rotating shaft 20 in another embodiment of the present application, wherein: Fig.23A is an assembly diagram of the first rotating shaft 100 and the second rotating shaft 20, Fig. 23B It is an exploded view of the first rotating shaft 100 and the second rotating shaft 20.

[0277] refer to Fig.23A and Fig. 23B Combined with FIG. 6A to FIG. 6C , the first rotating shaft 100 includes a first arc-shaped groove 110'. The first circular groove 110' is an open groove, for example, its cross-sectional shape may be L-shaped. The second rotating shaft 20 includes a first arc-shaped wall 210'. The orthographic projection of the first arc-shaped wall 210' on the YZ plane may be semicircular. The first arc-shaped wall 210' is inserted into the first arc-shaped groove 110' along the X-axis direction, and can rotate around the first axis L1 relative to the first arc-shaped groove 110', so that the second rotating shaft 20 can rotate around the first axis L1 relative to the first rotating shaft 100.

[0278] In some embodiments of the present application, the first arcuate wall 210' and the first arcuate groove 110' can be pressed against each other along the X-axis direction, so that suitable interference friction can be formed between the first arcuate wall 210' and the first arcuate groove 110', thereby avoiding the virtual position problem.

[0279] For example, the shaft mechanism 03C further includes a second clamping mechanism 240. The second clamping mechanism 240 can clamp the first arc-shaped wall 210' and the first arc-shaped groove 110' along the X-axis direction, so that the first arc-shaped wall 210' and the first arc-shaped groove 110' can be clamped to each other along the X-axis direction.

[0280] An exemplary configuration of the second clamping mechanism 240 is described below with reference to the accompanying drawings.

[0281] refer to Fig.23A and Fig. 23B Combined with FIG. 22A to FIG. 22C The first rotating shaft 100 is provided with a second groove 120. The depth direction of the second groove 120 is parallel to the X-axis direction. One end of the second clamping mechanism 240 is fixed on the second rotating shaft 20, and the other end is inserted into the second groove 120 along the X-axis direction, so that the first arc-shaped wall 110 and the first arc-shaped groove 210 can be clamped together along the X-axis direction.

[0282] Exemplarily, the second clamping mechanism 240 may include a threaded shaft 241 having a thread at one end and a nut 242, and extends along the X-axis direction. The second groove 120 is provided on the end face of the first rotating shaft 100, and passes through the end face of the first rotating shaft 100 along the X-axis direction. The end of the second clamping mechanism 240 without a thread may be integrally formed with the second rotating shaft 20 or connected as a whole by other connection methods (e.g., bonding or clamping, etc.). The end of the second clamping mechanism 240 with a thread passes through the second groove 120 along the X-axis direction and extends to the outside of the first rotating shaft 100, and the nut 242 is screwed on the end of the threaded shaft 241 with a thread, so as to achieve the clamping function.

[0283] Furthermore, in some embodiments of the present application, the second clamping mechanism 240 may further include a plurality of springs 243. The plurality of springs 243 are stacked along the X-axis direction, and along the X-axis direction, the springs 243 are disposed between the nut 242 and the first rotating shaft 100. Thus, the nut 242 can maintain elastic contact with the first rotating shaft 100, effectively avoiding the loss caused by hard friction.

[0284] Alternatively, in some alternative implementations, the second clamping mechanism 240 may also be a spring screw, including a locking screw and a spring leaf. The locking screw is sequentially inserted into the spring leaf, the second groove 120 of the first rotating shaft 100, and the second rotating shaft 20 along the X-axis direction. In addition, the tail of the locking screw is fixedly connected to the second rotating shaft 20 through a thread, thereby achieving a clamping function.

[0285] Alternatively, in some other alternative implementations, the second clamping mechanism 240 may include a stud with threads at both ends and two nuts. The two ends of the stud are respectively inserted into the second groove 120 of the first rotating shaft 100 and the second rotating shaft 20 along the X-axis direction, and extend from the second groove 120 of the first rotating shaft 100 and the second rotating shaft 20. The two nuts are respectively screwed on the two ends of the stud to achieve the clamping function.

[0286] Continue to refer Fig.23A and Fig. 23B Combined with FIG. 22A to FIG. 22C In some embodiments of the present application, based on the second clamping mechanism 240 being inserted into the second groove 120 along the X-axis direction, the matching second clamping mechanism 240 and the second groove 120 can also be used to stop the rotation of the first arc-shaped wall 210' relative to the first arc-shaped groove 110'.

[0287] Specifically, when the first arc-shaped wall 210' rotates relative to the first arc-shaped groove 110', the second clamping mechanism 240 can slide relative to the second groove 120. Fig.22A As shown, when the second clamping mechanism 240 is located at the left end of the second slot 120, the first arc-shaped wall 210' is located at the starting end of the stroke; Fig. 22B As shown, when the second clamping mechanism 240 is located at the right end of the second slot 120, the first arc wall 210' is located at the end of the stroke, thereby achieving a stop function. In the Y-axis direction, the left end of the second slot 120 is closer to the first shaft bracket 101 than the right end thereof.

[0288] In some embodiments of the present application, the second clamping mechanism 240 can also be used to provide a certain torque to the rotating shaft mechanism 03C, so as to play a role in supporting the display part 02. Specifically, since the second clamping mechanism 240 clamps the first rotating shaft 100 and the second rotating shaft 20 along the X-axis direction, there is a squeezing force along the X-axis direction between the two end surfaces of the first rotating shaft 100 and the second rotating shaft 20, so that the cooperation between the first rotating shaft 100 and the second rotating shaft 20 is a friction cooperation. In this way, the rotating shaft mechanism 03C is Fig.22A The first state shown is rotated to Fig. 22B During the second state shown, the relative sliding between the two matching end surfaces of the first rotating shaft 100 and the second rotating shaft 20 will generate a certain torque. The magnitude of the squeezing force between the first rotating shaft 100 and the second rotating shaft 20 can be adjusted by adjusting the screwing depth of the nut 242 and the number of the springs 243, so as to provide a suitable torque according to actual needs.

[0289] refer to FIG. 22A to FIG. 22C , the second rotating shaft 20 is sleeved on the outer side of the third rotating shaft 300. The second rotating shaft 20 includes a second arc-shaped groove 220'. The second arc-shaped groove 220 is an open groove, that is, the cross-sectional shape of the second arc-shaped groove 220' is L-shaped. The third rotating shaft 300 includes a second arc-shaped wall 310', and the projection of the second arc-shaped wall 310' on the YZ plane can be semicircular. The second arc-shaped wall 310' is inserted in the second arc-shaped groove 220' along the X-axis direction, and can rotate around the first axis L1 relative to the first arc-shaped groove 220', so that the third rotating shaft 300 can rotate around the first axis L1 relative to the second rotating shaft 20.

[0290] In some embodiments of the present application, the shaft mechanism 03C further includes a third clamping mechanism 320. The third clamping mechanism 320 can clamp the second arc groove 220' and the second arc wall 310' radially, so that the second arc groove 220' and the second arc wall 310' can clamp each other radially, thereby avoiding the virtual position problem.

[0291] An exemplary configuration of the third clamping mechanism 320 is described below with reference to the accompanying drawings.

[0292] Fig.24A and Fig. 24B FIG. 4 shows an exemplary arrangement of the third clamping mechanism 320 in an embodiment of the present application, wherein Fig.24A The third clamping mechanism 320 is Fig.22A The cross-section of the FF, Fig. 24B The third clamping mechanism 320 is Fig. 22B Cross-section of the FF.

[0293] refer to Fig.24A and Fig. 24B In some embodiments of the present application, a third groove 250 is provided on the second rotating shaft 20. The third clamping mechanism 320 is inserted into the third groove 250 in the radial direction, and its two ends can be fixedly connected to the third rotating shaft 300 and the outer sleeve 80' (as an example of the second outer sleeve) respectively, so as to clamp the second arc groove 220' and the second arc wall 310' in the radial direction.

[0294] in, Fig.25 FIG. 2 shows an exemplary structure of the third groove 250 in the second rotating shaft 20 in an embodiment of the present application. Fig.25 Combined with Fig.24A and Fig. 24B The second rotating shaft 20 includes an arc-shaped wall 201. The axis of the arc-shaped wall 201 is the first axis L1. The third groove 250 penetrates the arc-shaped wall 201 of the second rotating shaft 20 in the radial direction.

[0295] Fig.26A and Fig.26B FIG. 3 shows a schematic diagram of the structure of the third rotating shaft 300 in an embodiment of the present application. Fig.26A and Fig.26B Combined with Fig.24A and Fig. 24B The second arc-shaped wall 310' of the third rotating shaft 300 is provided with a mounting hole 302. The mounting hole 302 radially penetrates the third shaft 300. The third clamping mechanism 320 can be inserted into the mounting hole 302. When the third rotating shaft 300 rotates relative to the second rotating shaft 20, the third clamping mechanism 320 can be driven to move accordingly.

[0296] Fig. 27 FIG. 8 is a schematic diagram showing the structure of the outer sleeve 80' in an embodiment of the present application. Fig. 27 Combined with Fig.24A and Fig. 24B The outer sleeve 80' includes a connection portion 810' protruding radially close to the second rotating shaft 20. One end of the third clamping mechanism 320 can be inserted into the connection portion 810', so that the contact area with the outer sleeve 80' can be further increased without additionally increasing the size of the rotating shaft mechanism 03C, thereby further improving the clamping reliability of the third clamping mechanism 320.

[0297] In addition, the specific structure and deformation mode of the third clamping mechanism 320 are substantially the same as the specific structure and deformation mode of the first clamping mechanism 230 mentioned above, so you can refer to the above description of the first clamping mechanism 230 and will not repeat it here.

[0298] continue Fig.24A and Fig. 24B Combined with Fig. 27 In some embodiments of the present application, on the basis that the third clamping mechanism 320 is inserted into the third groove 250 in the radial direction, the matching third clamping mechanism 320 and the third groove 250 can also be used together to stop the rotation of the second arc-shaped wall 310' relative to the second arc-shaped groove 220'. For example, when the third clamping mechanism 320 is located at the left end of the third groove 250, the left side 811' of the connecting portion 810' contacts the left end of the third groove 250, and the second arc-shaped wall 310' is located at the starting end of the stroke; when the third clamping mechanism 320 is located at the right end of the third groove 250, the right side 812' of the connecting portion 810' contacts the right end of the third groove 250, and the second arc-shaped wall 310' is located at the end of the stroke, thereby realizing the stopping function. Among them, along the X-axis direction, the left end of the third groove 250 is closer to the first rotating shaft bracket 101 than its right end.

[0299] In some embodiments of the present application, the third clamping mechanism 320 can also be used to provide a certain torque to the rotating shaft mechanism 03C, so as to play a role in supporting the display portion 02. Specifically, after the third clamping mechanism 320 clamps the second rotating shaft 20 and the third rotating shaft 300, there is a radial squeezing force between the two end surfaces of the second rotating shaft 20 and the third rotating shaft 300, so that there is a certain friction force between the two end surfaces of the second rotating shaft 20 and the third rotating shaft 300. In this way, the rotating shaft mechanism 03C is Fig.22A The first state shown is rotated to Fig. 22B During the second state shown, the relative sliding between the two matching end surfaces of the second rotating shaft 20 and the third rotating shaft 300 will generate a certain torque.

[0300] In addition, the other structures and deformation modes of the rotating shaft mechanism 03C are the same as those described above. FIG. 6A to FIG. 6C The rotating shaft mechanism 03A shown is substantially the same. For example, the rotation order and implementation method between the first rotating shaft 100, the second rotating shaft 20 and the third rotating shaft 300 in the rotating shaft mechanism 03C are substantially the same as those of the rotating shaft mechanism 03A. Therefore, reference may be made to the above description of the rotating shaft mechanism 03A and no further details are given here.

[0301] The above is an explanation of the implementation mode of the present application by specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with some embodiments, this does not mean that the features of this application are limited to the implementation mode. On the contrary, the purpose of introducing the application in conjunction with the implementation mode is to cover other options or modifications that may be extended based on the claims of the present application. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details are omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0302] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "outside", "inside", "circumferential", "radial", "axial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0303] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "setting", "installation", "connection" and "fitting" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0304] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A rotating shaft mechanism, It is characterized in that The rotating shaft mechanism comprises: A first rotating shaft assembly, wherein the first rotating shaft assembly comprises a first rotating shaft; a second rotating shaft, the second rotating shaft being connected to the first rotating shaft; A second rotating shaft assembly, wherein the second rotating shaft assembly includes a third rotating shaft, and the third rotating shaft is connected to the second rotating shaft; The rotation axes of the second rotating shaft and the third rotating shaft are both the first axis, the second rotating shaft can rotate around the first axis, and the third rotating shaft can rotate around the first axis, so that the rotating shaft mechanism can rotate from the first state to the second state; When the rotating shaft mechanism rotates to the first state, on a cross section of the rotating shaft mechanism, the first rotating shaft, the second rotating shaft and the third rotating shaft are located in a first fan-shaped area, the cross section is perpendicular to the first axis, and the center of the first fan-shaped area overlaps with the first axis; When the rotating shaft mechanism rotates to the second state, on the cross section of the rotating shaft mechanism, the first rotating shaft, the second rotating shaft and the third rotating shaft are located in a second fan-shaped area different from the first fan-shaped area, and the center of the second fan-shaped area overlaps with the first axis.

2. The rotating shaft mechanism according to claim 1, It is characterized in that One of the first rotating shaft and the second rotating shaft comprises a first arc-shaped groove, and the other comprises a first arc-shaped wall; The axes of the first arcuate groove and the first arcuate wall are both the first axis, the first arcuate wall is inserted in the first arcuate groove, and one of the first arcuate groove and the first arcuate wall can rotate around the first axis relative to the other, so that the second rotating shaft can rotate relative to the first rotating shaft.

3. The rotating shaft mechanism according to claim 2, It is characterized in that The first arc-shaped groove and the first arc-shaped wall are pressed against each other in a radial direction, and the radial direction is perpendicular to an extending direction of the first axis.

4. The rotating shaft mechanism according to claim 3, It is characterized in that The first arc-shaped groove comprises a first groove wall and a second groove wall spaced apart in a radial direction; The rotating shaft mechanism further includes a first clamping mechanism, which clamps the first groove wall and the second groove wall in a radial direction so that the first arc-shaped groove and the first arc-shaped wall are pressed against each other in a radial direction.

5. The rotating shaft mechanism according to claim 4, It is characterized in that The first clamping mechanism is a spring screw.

6. The rotating shaft mechanism according to claim 3, It is characterized in that The groove width of the first arc-shaped groove is smaller than the wall thickness of the first arc-shaped wall, so that the first arc-shaped groove and the first arc-shaped wall are pressed against each other in the radial direction.

7. The rotating shaft mechanism according to claim 2, It is characterized in that The first arc-shaped groove and the first arc-shaped wall are pressed against each other in an axial direction, and the axial direction is parallel to an extending direction of the first axis.

8. The rotating shaft mechanism according to any one of claims 1 to 7, It is characterized in that One of the second rotating shaft and the third rotating shaft comprises a second arc-shaped groove, and the other comprises a second arc-shaped wall; The axes of the second arc-shaped groove and the second arc-shaped wall are both the first axis, the second arc-shaped wall is inserted in the second arc-shaped groove, and one of the second arc-shaped groove and the second arc-shaped wall can rotate around the first axis relative to the other, so that the third rotating shaft can rotate relative to the second rotating shaft.

9. The rotating shaft mechanism according to claim 8, It is characterized in that The rotating shaft mechanism further includes a third clamping mechanism, and the third clamping mechanism clamps the second circular arc groove and the second circular arc wall in a radial direction.

10. The rotating shaft mechanism according to any one of claims 1 to 9, It is characterized in that The rotating shaft mechanism further includes a first pin shaft, a second pin shaft, a connecting rod and a sliding block, and the first rotating shaft assembly includes a first rotating shaft bracket fixedly connected to the first rotating shaft; The first pin shaft and the second pin shaft are parallel to each other and extend in an axial direction, the axial direction is parallel to the extension direction of the first axis, the two ends of the connecting rod are rotatably connected to the first pin shaft and the second pin shaft respectively, the second pin shaft is rotatably connected to the slider, the first pin shaft is fixedly connected to the third rotating shaft, and the slider is slidably connected to the first rotating shaft bracket; Wherein, at least one of the following connections is a friction connection: a rotational connection between the connecting rod and the first pin shaft, a rotational connection between the connecting rod and the second pin shaft, and a sliding connection between the slider and the first rotating shaft bracket.

11. The rotating shaft mechanism according to claim 10, It is characterized in that The connecting rod comprises a plurality of stacked friction plates, wherein the stacking direction of the plurality of friction plates is perpendicular to the axial direction; The connecting rod is provided with a first axial hole penetrating the plurality of friction plates along the axial direction, and the connecting rod is rotatably connected to the first pin shaft through the first axial hole, wherein the first axial hole and the first pin shaft are frictionally matched, so that the rotational connection between the connecting rod and the first pin shaft is a friction connection; and / or, The connecting rod is provided with a second axial hole which passes through the multiple friction plates along the axial direction, and the connecting rod is rotatably connected to the second pin shaft through the second axial hole, wherein the fit between the second axial hole and the second pin shaft is a friction fit, so that the rotational connection between the connecting rod and the second pin shaft is a friction connection.

12. The rotating shaft mechanism according to claim 11, It is characterized in that A first notch is provided on a friction plate located in the middle layer of the plurality of friction plates, and the first notch is communicated with the first shaft hole; and / or, A second notch is provided on a friction plate located in a middle layer among the plurality of friction plates, and the second notch is communicated with the second shaft hole.

13. The rotating shaft mechanism according to claim 10, It is characterized in that The cross section of the first pin shaft is a non-circular cross section.

14. The rotating shaft mechanism according to any one of claims 1 to 13, It is characterized in that A rotation resistance structure is provided between the second rotating shaft and the third rotating shaft, and the rotation resistance structure makes the rotation resistance between the second rotating shaft and the third rotating shaft greater than the rotation resistance between the first rotating shaft and the second rotating shaft.

15. The rotating shaft mechanism according to claim 14, It is characterized in that One of the second rotating shaft and the third rotating shaft comprises a second arc-shaped groove, and the other comprises a second arc-shaped wall; The axes of the second arc-shaped groove and the second arc-shaped wall are both the first axis, the second arc-shaped groove is inserted in the second arc-shaped groove, and can rotate relative to the second arc-shaped wall around the first axis, so that the third rotating shaft can rotate relative to the second rotating shaft; Wherein, one of the second arc-shaped groove and the second arc-shaped wall is provided with a convex ridge, and the other is provided with a groove matching the convex ridge, and the convex ridge and the groove together form the rotation resistance structure.

16. The rotating shaft mechanism according to any one of claims 1 to 15, It is characterized in that The rotating shaft mechanism is used in electronic equipment; The first pivot assembly of the pivot mechanism also includes a first pivot bracket connected to the first pivot, and the second pivot assembly of the pivot mechanism also includes a second pivot bracket connected to the third pivot, the first pivot bracket is used to be connected to the first body of the electronic device, and the second pivot bracket is used to be connected to the second body of the electronic device.

17. The rotating shaft mechanism according to any one of claims 1 to 16, It is characterized in that The central angle of the first sector-shaped area is 150° to 180°, and the central angle of the second sector-shaped area is 220° to 320°.

18. The rotating shaft mechanism according to any one of claims 1 to 17, It is characterized in that The rotation angle range of the second rotating shaft relative to the first rotating shaft is 60° to 90°, and the rotation angle range of the third rotating shaft relative to the second rotating shaft is 60° to 90°.

19. An electronic device, It is characterized in that It comprises a first main body, a second main body and a pivot mechanism as described in any one of claims 1 to 18, wherein the first pivot assembly of the pivot mechanism comprises a first pivot bracket connected to the first pivot, the second pivot assembly comprises a second pivot bracket connected to the third pivot, the first main body is connected to the first pivot bracket, and the second main body is connected to the second pivot bracket.

20. The electronic device according to claim 19, It is characterized in that The first body and the second body are spaced apart from each other, and during the process of the rotating shaft mechanism rotating from the first state to the second state, the first axis is located in the gap between the first body and the second body.

21. The electronic device according to claim 19 or 20, It is characterized in that When the shaft mechanism rotates to the first state, the angle between the first body and the second body is the center angle of the first sector area; when the shaft mechanism rotates to the second state, the angle between the first body and the second body is the center angle of the second sector area.

22. The electronic device according to any one of claims 19 to 21, It is characterized in that The first axis is parallel to the length direction of the electronic device; when the hinge mechanism rotates to the first state, the dimension of the gap between the first body and the second body along the width direction of the electronic device is 0 mm to 2 mm.

23. The electronic device according to any one of claims 19 to 22, It is characterized in that The first axis is parallel to the length direction of the electronic device; when the hinge mechanism rotates to the second state, the gap between the first body and the second body is 0mm to 2mm in the thickness direction of the electronic device; or, the first body and the second body overlap in the thickness direction of the electronic device.

24. The electronic device according to any one of claims 19 to 23, It is characterized in that The first axis is parallel to the length direction of the electronic device; the first body comprises a first end and a second end which are arranged opposite to each other along the width direction of the electronic device; The first body is connected to the first rotating shaft bracket through the first end, and the second end of the first body is provided with a heat dissipation channel.

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