CN117287461A

CN117287461A - Linkage hinge mechanism and electronic equipment

Info

Publication number: CN117287461A
Application number: CN202210694410.5A
Authority: CN
Inventors: 饶迎春
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2023-12-26

Abstract

The embodiment of the application provides a linkage hinge mechanism and electronic equipment. The swing rod in the linkage hinge mechanism is pivoted on the base, the first bearing frame and the second bearing frame are respectively positioned at two ends of the base, the first bearing frame and the swing rod are connected through a first transmission assembly, and the second bearing frame and the swing rod are connected through a second transmission assembly. When the linkage hinge mechanism is applied to the electronic equipment, the first support frame is fixed on the display screen, and the second support frame is fixed on the bottom part. When the second carrier is in a static state and the display screen in the flat mode is turned up, the base rotates relative to the bottom part to be gradually unfolded. In the process of overturning the display screen in the overturning posture on the bottom part, the display screen is gradually reversely overturned, and the base can rotate relative to the bottom part to be gradually overlapped on the bottom part. The linkage hinge mechanism can reduce the possibility of scraping the bottom part in the process of turning up or turning over the display screen, the display screen side and the bottom part side synchronously rotate in a linkage manner, and the turning operation experience is improved.

Description

Linkage hinge mechanism and electronic equipment

Technical Field

The embodiment of the application relates to the field of hinge mechanisms, in particular to a linkage hinge mechanism and electronic equipment.

Background

There are some electronic devices in the market, such as a notebook computer as shown in fig. 1, in which the display screen 1 can be turned over with respect to the bottom member 2 (keyboard), so as to realize a tablet mode and a turned-up mode of the display screen 1. In the tablet mode as shown in fig. 1 (a), the display screen 1 is stacked on the bottom member 2, and the operation similar to a tablet computer can be performed on the display screen 1. In the flip-up mode as shown in fig. 1 (b), the display screen 1 is flipped up at an angle with respect to the bottom member 2, and the operation of the notebook computer is enabled. According to the notebook computer, the rotating shaft mechanisms 3 are respectively arranged on the side of the display screen 1 and the side of the bottom part 2, the two rotating shaft mechanisms 3 are connected through the connecting frame 4, and independent overturning actions of the side of the display screen 1 and the side of the bottom part 2 can be realized. As shown in fig. 1 (c), the two sets of rotating shaft mechanisms 3 move independently, during the process of turning up or turning over the display screen 1, the bottom of the display screen 1 is easy to scratch the bottom part 2 to scratch the appearance, and the two sets of rotating shaft mechanisms 3 need to be adjusted independently for turning up or turning over the display screen 1, so that the operation is complex and the experience is poor.

Disclosure of Invention

The embodiment of the application provides a linkage hinge mechanism and electronic equipment, has solved electronic equipment among the related art and has had the in-process of turning up or tipping display screen and scratch to the bottom part easily, turns up or tipping display screen operation experience not good enough problem.

The embodiment of the application adopts the following technical scheme:

in a first aspect, embodiments of the present application provide a linkage hinge mechanism, including: the device comprises a base, a swing rod, a first bearing frame, a second bearing frame, a first transmission assembly and a second transmission assembly; the base is provided with a first end and a second end which are distributed oppositely, the swing rod is provided with a first end and a second end which are distributed oppositely, and the swing rod is pivoted on the base; the first transmission assembly and the second transmission assembly are respectively arranged at the first end and the second end of the swing rod; the first bearing frame is pivoted to the first end of the base through the first transmission component; the second bearing frame is pivoted to the second end of the base through a second transmission assembly; when the first bearing frame rotates along the first direction, the first transmission assembly can move along the first bearing frame and drive the swinging rod to rotate along the second direction, and the second transmission assembly can move along the swinging rod and drive the second bearing frame to rotate along the first direction.

When the first carrier rotates along one side of the first direction, the swing rod rotates along one side determined by the second direction, and the second carrier rotates along the same direction as the first carrier. When the first bearing frame rotates along the other side of the first direction, the swing rod rotates along the other side determined by the second direction, and the second bearing frame rotates along the same direction as the first bearing frame. The movement relationship of the first carrier, the swing rod and the second carrier is determined.

If the second carrier is configured to remain stationary, i.e., define a rotational degree of freedom for the second carrier, the first carrier rotates on either side of the first direction, and the base pivotally connected to the second carrier rotates in a direction opposite the first direction. It can be seen that the movement relationship of the first carrier, the swing link and the base is determined in a state where the second carrier is kept stationary.

The embodiment of the application provides a linkage hinge mechanism, pendulum rod pin joint is on the base, and first carrier and second carrier are located the both ends of base respectively, connect through first drive assembly between first carrier and the pendulum rod, connect through second drive assembly between second carrier and the pendulum rod. Under the second carrier in the static state, make first carrier along first direction rotation, first carrier drives the pendulum rod through first drive assembly and rotates along the second direction, and the pendulum rod motion is followed to the second drive assembly, and the second drive assembly will drive the reverse rotation of base along first direction, realizes the synchronous linkage rotation of two axis positions.

When the linkage hinge mechanism is applied to the electronic equipment, the first support frame is fixed on a first component (such as a display screen), the second support frame is fixed on a bottom component (such as a keyboard), and the second support frame is configured to be in a static state. When the display screen is in the flat mode, the display screen is overlapped on the bottom part. In a state in which the second carrier is stationary, i.e., the bottom member is kept stationary, the base is rotated relative to the bottom member to be gradually unfolded during the tilting of the flat panel mode display screen until the display screen is adjusted to a predetermined tilt-up posture. In the process of overturning the display screen in the overturning posture on the bottom part, the display screen is gradually overturned reversely, and the base can rotate relative to the bottom part to be gradually overlapped on the bottom part until the display screen is in the flat-panel mode. In the process of turning up and turning over the display screen, the rotation directions of the base are opposite. By adopting the linkage hinge mechanism, the possibility of scraping the bottom part in the process of turning up or turning over the display screen can be reduced, and the two positions on the side of the display screen and the side of the bottom part synchronously rotate in a linkage manner, so that the turning operation experience is improved.

By adopting the electronic equipment with the linkage hinge mechanism, the first support frame is fixed on the first component (such as a display screen), the second support frame is fixed on the bottom component, and the bottom component does not need to be provided with a groove with a larger area. The display screen in the flat mode is stacked on the bottom member, and the base and the swing link are located between the display screen and the bottom member without occupying excessive space of the bottom member. After the display screen is adjusted to a preset turning-up posture, the base and the swing rod are positioned between the display screen and the bottom piece, and small space is occupied structurally.

In an alternative implementation, the base has a limit structure for limiting the range of oscillation of the pendulum rod. Through setting up limit structure, make the pendulum rod move in predetermined swing angle within range, reduce the possibility that the pendulum rod breaks away from the base.

In an alternative implementation, the limiting structure includes a blocking wall located on the base, and the blocking wall is used for blocking the swing rod to limit the swing range of the swing rod. The swing rod is rotatably connected to the base, and when the swing rod rotates to a preset angle, the blocking wall blocks the swing rod from continuously swinging, so that the maximum swinging angle of the swing rod can be limited.

In an alternative implementation mode, the limiting structure comprises a limiting column positioned on the base, the swing rod is provided with a guide groove for sliding of the limiting column, and the guide groove is arranged in a circumferential extending mode by taking the rotation axis of the swing rod as the center. The limit post can slide along the guide groove, and when the limit post rotates to a preset angle, the inner end surface of the guide groove can be blocked by the limit post, so that the maximum swing angle of the swing rod is limited.

In an alternative implementation, the base has a receiving slot for receiving the swing link, and the cover is fixed to the base. The swing rod is kept between the base and the cover body, the swing rod and parts arranged on the swing rod are prevented from tilting, and the swing rod cannot be seen from the outside, so that the linkage hinge mechanism is light, thin and attractive.

In an alternative implementation, the swing rod is pivoted on the base through a positioning column; the positioning column is fixed on the base, and the swing rod is provided with a positioning hole for the positioning column to pass through; or the positioning column is fixed on the swing rod, and the base is provided with a positioning hole for the positioning column to pass through. The two modes can conveniently install the swing rod on the base in a rotating way, and the swing rod can swing stably and reliably relative to the base.

In an alternative implementation manner, the first transmission assembly comprises a first shaft body, the first shaft body comprises a first connecting rod, and the first connecting rod is synchronously and rotatably connected to the first bearing frame and pivoted to the first end of the base; the second transmission assembly comprises a second shaft body, the second shaft body comprises a second connecting rod, and the second connecting rod is synchronously and rotatably connected to the second bearing frame and pivoted to the second end of the base.

In the scheme, the first connecting rod in the first shaft body is synchronously connected to the first bearing frame in a rotating mode, namely, the first connecting rod can rotate along with the first bearing frame. The first connecting rod can rotate at the first end of the base, so that the first bearing frame is pivoted at the first end of the base, and the structure is simple and the assembly is easy. The second carrier is similar to the first carrier.

When the rotational freedom degree of the second carrier is limited, the first carrier is rotated along the first direction, the rotation axes of the base and the first carrier are parallel under the cooperation of the first transmission component, the swinging rod and the second transmission component, and the base can rotate reversely along the first direction.

In an alternative implementation manner, the first transmission assembly comprises a first shaft body and a first gear part fixed at the first end of the swing rod, the first shaft body comprises a first connecting rod and a first worm part which are coaxially connected, the first connecting rod is synchronously connected to the first bearing frame in a rotating mode and pivoted to the first end of the base, and the first worm part and the first gear part are meshed with each other.

The second transmission assembly comprises a second shaft body and a second gear part fixed at the second end of the swing rod, the second shaft body comprises a second connecting rod and a second worm part which are coaxially connected, the second connecting rod is synchronously and rotatably connected to the second bearing frame and pivoted at the second end of the base, and the second worm part and the second gear part are meshed with each other.

In the scheme, a first connecting rod in a first shaft body is synchronously connected to a first bearing frame in a rotating mode, the first connecting rod can rotate relative to a first end of a base, a first gear part is fixed at the first end of a swinging rod, and the first gear part and a first worm part are meshed to form worm and gear transmission. When the first bearing frame rotates along the first direction, the first shaft body rotates along the first bearing frame, the first gear part is meshed with the first worm part, so that the first gear part is driven to rotate in a certain range along the second direction, and then the swing rod fixed with the first gear part is driven to rotate along the second direction. The second transmission assembly is similar to the first transmission assembly in condition, and the swing rod drives the second gear part to rotate in a certain range along the second direction.

The first carrier may be fixed to the first member and the second carrier may be fixed to the base member, the base member being held stationary, i.e. the second carrier being held stationary. When the second carrier is kept in a static state and the first carrier rotates along the first direction, the base can rotate along the direction opposite to the first direction under the cooperation of the first transmission assembly, the swinging rod and the second transmission assembly.

In an alternative implementation manner, the first transmission assembly comprises a first shaft body and a first sliding block which is slidably arranged at the first end of the swing rod, the first shaft body comprises a first connecting rod and a first lead screw part which are coaxially connected, the first connecting rod is synchronously and rotatably connected to the first bearing frame and pivoted to the first end of the base, and the first lead screw part is in threaded connection with a screw hole of the first sliding block;

the second transmission assembly comprises a second shaft body and a second sliding block which is slidably arranged at the second end of the swing rod, the second shaft body comprises a second connecting rod and a second screw rod part which are coaxially connected, the second connecting rod is synchronously and rotatably connected to the second bearing frame and pivoted to the second end of the base, and the second screw rod part is in threaded connection with a screw hole of the second sliding block.

In this scheme, when making first carrier rotate along first direction, first axis body rotates along first carrier, and the screw transmission between the screw of first lead screw portion and first slider to drive first slider along first lead screw portion axial wherein one side rectilinear movement, first slider and pendulum rod can slide each other, and then drive the pendulum rod and rotate along the second direction. The second transmission assembly is similar to the first transmission assembly in condition, and the swing rod drives the second sliding block to rotate along the second direction.

In an alternative implementation, a first rotation damping structure is provided on the first transmission assembly for generating a friction torque that satisfies the relative rest of the first carrier and the base; the second transmission assembly is provided with a second rotary damping structure for generating friction moment which meets the relative stillness of the second bearing frame and the base.

Through setting up first rotation damping structure, after adjusting the contained angle of first carrier and base, can produce friction moment between first carrier and base, can keep the contained angle of first carrier and base. Through setting up the second rotary damping structure, after adjusting the contained angle of second carrier and base, can produce friction torque between second carrier and base, under the second carrier keeps stationary state, can keep the contained angle of second carrier and base.

After the linkage hinge mechanism with the first rotary damping structure and the second rotary structure is adopted by the electronic equipment, the first support frame is fixed on a first component (such as a display screen), the second support frame is fixed on a bottom component, and after the gesture of the display screen is adjusted, the multi-angle stable hovering effect of the display screen is realized through the two rotary damping structures, so that the display screen is kept in a preset flipped gesture, and the display screen is convenient for a user to watch.

In an alternative implementation manner, the base is provided with a first support, the first connecting rod penetrates through the first support and can rotate relative to the first support, and the first connecting rod is connected with the first support in a molded surface manner; the first rotary damping structure comprises a first friction plate and a first elastic piece; the first friction plate molded surface is connected to the first connecting rod and is arranged adjacent to the first support along the axial direction of the first shaft body; the first elastic piece is arranged on the first connecting rod and is used for providing axial force for the first shaft body so that the first friction plate is propped against the first support along the axial direction of the first shaft body.

In this embodiment, the first support is part of the base and can be considered as a stationary component. The first carrier, the first shaft and the first friction plate are considered as a movable part, and the movable part rotates relative to the stationary part. Under the axial force of the first elastic piece, the first friction plate is axially propped against the first support, positive pressure is generated between the first friction plate and the first support, friction moment is generated between the first friction plate and the first support, namely friction moment is generated between the movable part and the static part, a preset included angle is kept between the first support and the first support, and the free hovering effect of the first support is realized.

In an alternative implementation, the first elastic member is compressively disposed between the first carrier and the positioning member fixed to the end of the first connecting rod. The first shaft body receives axial force under the action of the first elastic piece, the first friction plate is tightly clamped between one end face of the first worm part and the first support along the axial direction of the first shaft body, positive pressure is generated between the first friction plate and the first support, and friction torque is generated between the first friction plate and the first support.

In an alternative implementation manner, the first elastic piece is arranged between one end face of the first worm part and the first friction plate in a compressed mode, and the positioning piece at the tail end of the first connecting rod is abutted to the first bearing frame along the axial direction of the first shaft body. Under the action of the first elastic piece, the first shaft body receives axial force, the first friction plate tightly props against the first support along the axial direction of the first shaft body, positive pressure is generated between the first friction plate and the first support, and friction torque is generated between the first friction plate and the first support.

In an alternative embodiment, the first support has a first connecting lug, which has a through-hole through which the first connecting rod passes. The first connection lug has a first fitting groove communicating with the through hole. The first friction plate is assembled in the first assembling groove, so that the first friction plate is protected and assembled conveniently. The first support is also provided with a first plate-shaped part connected with the first connecting lug, and the first plate-shaped part can be fixed on the base body, so that the structure is compact and the assembly is easy.

In an alternative embodiment, the first carrier has a second connecting lug, which has a through-hole through which the first connecting rod passes. The first support frame is also provided with a second plate-shaped part connected with the second connecting lug, and the second plate-shaped part can be fixed on the display screen, so that the occupied space is small, and the assembly with the display screen is easy.

In an alternative implementation manner, the first rotary damping structure further comprises a second friction plate and a first gasket which are sequentially staggered along the axial direction of the first connecting rod; the first connecting rods penetrate through the second friction plates and the first gaskets which are sequentially staggered, the molded surfaces of the second friction plates are connected to the first connecting rods, and the first gaskets are synchronously and rotatably connected to the first support; under the effect of the first elastic piece, the second friction plates and the first gaskets which are sequentially staggered are clamped between the first support and the first bearing frame along the axial direction of the first connecting rod.

In this embodiment, the first support is part of the base, and the first support and the first spacer may be considered as a stationary component. The first bearing frame, the first shaft body and the second friction plate are regarded as a movable part, and the movable part rotates relative to the stationary part. The second friction plates and the first gaskets which are arranged in sequence in a staggered way are tightly clamped between the first support and the first bearing frame under the axial force of the first elastic piece. Positive pressure is generated between the adjacent second friction plate and the first gasket, and friction moment is generated between the adjacent second friction plate and the first gasket, namely friction moment is generated between the movable part and the static part, and the friction moment is lifted in a limited space, so that a preset included angle is kept between the first support and the first bearing frame.

In an alternative implementation, when the first support has a first connection lug, the first connection lug has a second assembly groove in communication with the through hole, and the second friction plate and the first gasket are mounted in the second assembly groove, so that protection and assembly of the second friction plate and the first gasket are facilitated.

In an alternative implementation manner, the first shaft body further comprises a first screw rod part coaxially connected to the first connecting rod, and a first supporting part coaxially arranged with the first screw rod part; the first screw rod part is in threaded connection with a first nut; the first elastic piece is sleeved outside the first connecting rod and is arranged between the first bearing frame and the first nut in a compressed mode; the first supporting part penetrates through the first end of the base and can rotate relative to the base; the part of the first supporting part penetrating out of the base is provided with a first limiting piece used for limiting the axial position of the first supporting part.

In this scheme, make first elastic component compression setting between first carrier and first nut through locking first nut to provide axial force to first axis body, make first friction disc support and establish on first support along the axial of head rod, and make second friction disc and the first gasket of staggered arrangement in proper order press from both sides along the axial of head rod and establish between first support and first carrier, and then produce friction moment.

In an alternative implementation manner, the first rotary damping structure comprises a first elastic round wrapping part arranged at the first end of the base, and the first connecting rod penetrates through the first elastic round wrapping part; when the first connecting rod rotates a preset angle relative to the first elastic rounding part, friction moment meeting the static condition of the first connecting rod relative to the first elastic rounding part can be generated between the first connecting rod and the first elastic rounding part.

In this scheme, with the partial inner wall of first elasticity package circle portion and the partial outer wall of head rod set up to have the interference volume. Through rotatory head rod, until there is the interference volume between first elasticity package circle portion and the head rod, first elasticity package circle portion produces elastic deformation, will produce friction moment between first elasticity package circle portion and the head rod, makes keeps predetermined contained angle between base and the first carrier, realizes the free effect of hovering of first carrier.

In an alternative implementation, a part of the inner wall of the first elastic rounded portion is set to a first plane, and a part of the outer wall of the first connecting rod is set to a second plane. When the first plane and the second plane are arranged oppositely, no interference exists between the first elastic rounding part and the first connecting rod. When the first plane and the second plane are staggered, that is, when part of the first plane is aligned with the smooth outer surface of the first connecting rod or the second plane is aligned with the smooth inner surface of the first elastic rounding part, interference quantity exists between the first elastic rounding part and the first connecting rod, so that friction moment is generated.

In an alternative implementation mode, the base is provided with a second support, the second connecting rod penetrates through the second support and can rotate relative to the second support, and the second connecting rod is in molded surface connection with the second support; the second rotary damping structure comprises a third friction plate and a second elastic piece; the third friction plate profile is connected to the second connecting rod and is arranged adjacent to the second support along the axial direction of the second shaft body; the second elastic piece is arranged on the second connecting rod and is used for providing axial force for the second shaft body so that the third friction plate is propped against the second support along the axial direction of the second shaft body.

In this embodiment, the second support is part of the base and can be considered as a movable part. The second carrier, the second shaft and the third friction plate may be considered as one stationary part. The movable member rotates relative to the stationary member. Under the axial force of the second elastic piece, the third friction plate is axially propped against the second support, positive pressure is generated between the third friction plate and the second support, friction moment is generated between the third friction plate and the second support, namely friction moment is generated between the movable part and the static part, a preset included angle is kept between the second support and the second support, and the free hovering effect of the base is realized.

In an alternative implementation, the second support has a first connection portion with a via through which the second connection bar passes. The first connection portion has a first mounting groove communicating with the via hole. The third friction plate is assembled in the first mounting groove, so that the protection and the assembly of the third friction plate are facilitated. The first support is also provided with a first plate-shaped body connected with the first connecting part, and the first plate-shaped body can be fixed on the base body, so that the structure is compact and the assembly is easy.

In an alternative implementation, the second carrier has a second connection portion with a via through which the second connecting rod passes. The second carrier also has a second plate-like body connected to the second connection portion, and the second plate-like body can be fixed to the base member with a small space occupation and easy assembly with the base member.

In an alternative implementation manner, the second rotary damping structure further comprises a fourth friction plate and a second gasket which are sequentially staggered along the axial direction of the second connecting rod; the second connecting rods penetrate through fourth friction plates and second gaskets which are sequentially staggered, the molded surfaces of the fourth friction plates are connected to the second connecting rods, and the second gaskets are synchronously and rotatably connected to the second support; under the effect of the second elastic piece, fourth friction plates and second gaskets which are sequentially staggered are clamped between the second support and the second bearing frame along the axial direction of the second connecting rod.

In this embodiment, the second support is part of the base, and the second support and the second spacer may be regarded as one movable part. The second carrier, the second shaft body, and the fourth friction plate may be considered as one stationary component. The movable member rotates relative to the stationary member. The fourth friction plates and the second gaskets which are arranged in sequence in a staggered way are tightly clamped between the second support and the second bearing frame under the axial force of the second elastic piece. Positive pressure is generated between the fourth friction plate and the second gasket, friction moment is generated between the fourth friction plate and the second gasket, namely friction moment is generated between the movable part and the static part, and the friction moment is lifted in a limited space, so that a preset included angle is kept between the second support and the second support.

In an alternative implementation, the first connecting portion has a second mounting groove in communication with the via hole, and the second friction plate and the second spacer are mounted in the second mounting groove, facilitating protection and assembly of the fourth friction plate and the second spacer.

In an alternative implementation manner, the second shaft body further comprises a second screw rod part coaxially connected to the second connecting rod, and a second supporting part coaxially arranged with the second screw rod part; the second screw rod part is in threaded connection with a second nut; the second elastic piece is sleeved outside the second connecting rod and is arranged between the second bearing frame and the second nut in a compressed mode; the second supporting part penetrates through the second end of the base and can rotate relative to the base; the part of the second supporting part penetrating out of the base is provided with a second limiting piece for limiting the axial position of the second supporting part.

In this scheme, make second elastic component compression setting between second carrier and second nut through locking second nut to provide axial force to the second axis body, make the axial of third friction disc along the second connecting rod support and establish on the second support, and make the axial clamp of fourth friction disc and the second gasket of staggered arrangement in proper order along the second connecting rod establish between second support and second carrier, and then produce friction torque.

In an alternative implementation manner, the second rotary damping structure comprises a second elastic round wrapping part arranged at the second end of the base, and the second connecting rod penetrates through the second elastic round wrapping part; when the second connecting rod rotates by a preset angle relative to the second elastic wrapping round part, friction moment meeting the static condition of the second connecting rod relative to the second elastic wrapping round part can be generated between the second connecting rod and the second elastic wrapping round part.

In this scheme, with the second elasticity wrap the partial inner wall of circle portion and the partial outer wall of second connecting rod and be set up to have the interference volume, through rotatory second connecting rod, have the interference volume until between second elasticity wrap circle portion and the second connecting rod, second elasticity wrap circle portion produce elastic deformation, will produce friction moment between second elasticity wrap circle portion and the second connecting rod, make and keep predetermined contained angle between base and the second carrier, realize the free effect of hovering of base.

In an alternative implementation mode, the swing rods which are arranged in pairs at intervals are pivoted on the same base, and the swing rods, the first transmission assembly and the second transmission assembly are arranged in a one-to-one correspondence manner; the swing rods, the first bearing frames and the second bearing frames are arranged in one-to-one correspondence; or the same first bearing frame is pivoted at the first ends of different bases in a one-to-one correspondence manner through different first transmission components, and the same second bearing frame is pivoted at the second ends of different bases in a one-to-one correspondence manner through different second transmission components.

In this scheme, pendulum rod and relevant spare part that arrange in pairs can play better supporting effect. When each first transmission assembly is provided with a first rotary damping structure and each second transmission assembly is provided with a second rotary damping structure, larger friction moment can be provided in a limited space, and the reliable free hovering effect of the first bearing frame and the first component is realized.

In a second aspect, an embodiment of the present application provides an electronic device, including a first component, a bottom component, and the above-mentioned linkage hinge mechanism, where the first support is fixed on the first component, and the second support is fixed on the bottom component.

According to the electronic equipment provided by the embodiment of the application, due to the adoption of the linkage hinge mechanism, the possibility of scraping the first component to the second component in the process of turning up or overturning can be reduced, and the electronic equipment can synchronously and cooperatively rotate at two positions, so that the overturning operation experience is improved.

In an alternative implementation, the electronic device further includes a second component to which the base is secured. The first component and the second component are synchronously opened and closed through the linkage hinge structure.

Drawings

Fig. 1 (a) to (c) are schematic views of an electronic device in the related art in a tablet mode, a flip-up mode, and a display screen scratching a bottom part, respectively;

FIG. 2 is a perspective assembly view of the ganged hinge mechanism provided in an embodiment of the present application when the cover is removed;

FIG. 3 is a schematic view of the linkage hinge mechanism of FIG. 2 when the cover is assembled;

FIG. 4 is a schematic view of the linkage hinge mechanism of FIG. 3 in another position;

FIGS. 5 (a) and (b) are schematic diagrams of the ganged hinge mechanism of FIG. 3 in tablet and flipped-up modes, respectively, for use on an electronic device;

fig. 6 (a) and (b) are schematic views of the electronic device of the first comparative example in the tablet mode and the flip-up mode, respectively;

FIG. 7 is an exploded perspective view of the ganged hinge mechanism of FIG. 3;

FIG. 8 is a perspective cross-sectional view of FIG. 3 taken along line C-C;

FIG. 9 is a plan cross-sectional view of FIG. 3 taken along line C-C;

FIG. 10 is a perspective view of a swing link of the ganged hinge mechanism of FIG. 7;

FIG. 11 is a perspective assembly view of the pendulum and base of the ganged hinge mechanism of FIG. 7;

FIG. 12 is a schematic view of the linkage hinge mechanism of FIG. 2 at another angle;

fig. 13 is a perspective view of a first shaft (second shaft) in the link hinge mechanism of fig. 12;

FIG. 14 is an enlarged view of a portion of the ganged hinge mechanism of FIG. 12 at a first drive assembly;

FIG. 15 is an enlarged view of a portion of the ganged hinge mechanism of FIG. 12 at a second drive assembly;

fig. 16 is a schematic structural view of a first transmission assembly (a second transmission assembly) in a linkage hinge mechanism according to another embodiment of the present disclosure;

FIG. 17 is a perspective cross-sectional view of FIG. 12 taken along line D-D;

FIG. 18 is an enlarged view of a portion of FIG. 17 at the first friction plate;

FIG. 19 is a schematic view of a first rotational damping structure (second rotational damping structure) in a linked hinge mechanism according to another embodiment of the present disclosure;

FIG. 20 is an enlarged partial view of the ganged hinge mechanism of FIG. 2 at a second drive assembly;

FIG. 21 is a perspective cross-sectional view of FIG. 20 taken along line E-E;

FIG. 22 is an enlarged view of a portion of FIG. 20 at a second friction plate;

fig. 23 (a) and (b) are schematic structural diagrams of an electronic device in different postures according to another embodiment of the present application;

fig. 24 is a schematic structural diagram of an electronic device in different postures according to another embodiment of the present disclosure;

Fig. 25 (a) and (b) are schematic structural diagrams of an electronic device in different postures according to another embodiment of the present application.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application. While the description of the present application will be presented in conjunction with some embodiments, it is not intended that the features of this application be limited to only this embodiment. Rather, the purpose of the description of the embodiments as set forth in this application is to cover other alternatives or modifications that may be extended by the claims based on this application. The following description contains many specific details in order to provide a thorough understanding of the present application. The present application may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the focus of the application. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It should be understood that in the description of the embodiments of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and for example, the terms "connected" and "connected" may be either detachably connected or non-detachably connected; may be directly connected or indirectly connected through an intermediate medium. The terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the device or element in question must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the embodiment of the present application, "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

Referring to fig. 2, an embodiment of the present application provides a linkage hinge mechanism 1000, including: the swing arm type swing arm comprises a base 100, a swing arm 200, a first carrier 300, a second carrier 400, a first transmission assembly 500 and a second transmission assembly 600; the base 100 has a first end 100a and a second end 100b which are distributed oppositely, the swing rod 200 has a first end 200a and a second end 200b which are distributed oppositely, and the swing rod 200 is pivoted on the base 100; the first transmission assembly 500 and the second transmission assembly 600 are respectively arranged at the first end 200a and the second end 200b of the swing rod 200; the first carrier 300 is pivotally connected to the first end 100a of the base 100 through the first transmission assembly 500; the second carrier 400 is pivotally connected to the second end 100b of the base 100 through the second transmission assembly 600; when the first carrier 300 rotates along the first direction a, the first transmission assembly 500 can move along the first carrier 300 and drive the swing rod 200 to rotate along the second direction B, and the second transmission assembly 600 can move along the swing rod 200 and drive the second carrier 400 to rotate along the first direction a.

Wherein the first end 100a of the base 100 and the first end 200a of the swing link 200 are oriented substantially the same, and the second end 100b of the base 100 and the second end 200b of the swing link 200 are oriented substantially the same, and the swing link 200 swings within a small angular range relative to the base 100.

The first direction a is the rotation direction around the pivot axis 301 of the first carrier 300 relative to the base 100, and is also the rotation direction around the pivot axis 401 of the second carrier 400 relative to the base 100. The pivot axis 301 of the first carrier 300 and the pivot axis 401 of the second carrier 400 are parallel to each other. The rotation of the first carrier 300 in the first direction a may be the rotation of the first carrier 300 in both the front and back sides of the first direction a. The rotation of the second carrier 400 in the first direction a may be the rotation of the second carrier 400 in both the front and back sides of the first direction a.

The second direction B is the direction of rotation about the pivot axis 201 of the swing link 200 relative to the base 100. The swing rod 200 may rotate in the second direction B on both sides of the second direction B. The axis X of the first direction a and the axis Y of the second direction B may be perpendicular to each other, that is, the pivot axis 301 of the first carrier 300 and the pivot axis 201 of the swing link 200 are perpendicular to each other.

When the first carrier 300 rotates in one side of the first direction a without limiting the degree of freedom of rotation of the second carrier 400, the swing link 200 rotates in one side determined by the second direction B, and the second carrier 400 rotates in the same direction as the first carrier 300. When the first carrier 300 rotates in the other side of the first direction a, the swing link 200 rotates in the other side determined by the second direction B, and the second carrier 400 rotates in the same direction as the first carrier 300. That is, the movement relationship of the first carrier 300, the swing link 200, and the second carrier 400 is determined.

Referring to fig. 3 and 4, if the second carrier 400 is configured to maintain a stationary state, i.e., to define a rotational degree of freedom of the second carrier 400, the first carrier 300 rotates in either side of the first direction a, the base 100 pivotally connected to the second carrier 400 will rotate in a direction opposite to the first direction a. It can be seen that the movement relationship of the first carrier 300, the swing link 200 and the base 100 is determined in a state where the second carrier 400 is maintained in a stationary state.

Referring to fig. 2, in the linkage hinge mechanism 1000 provided in this embodiment, a swing rod 200 is pivotally connected to a base 100, a first support 300 and a second support 400 are respectively located at two ends of the base 100, the first support 300 and the swing rod 200 are connected through a first transmission assembly 500, and the second support 400 and the swing rod 200 are connected through a second transmission assembly 600. Referring to fig. 3 and 4, when the second carrier 400 is in a static state, the first carrier 300 rotates along the first direction a, the first carrier 300 drives the swing rod 200 to rotate along the second direction B through the first transmission assembly 500, the second transmission assembly 600 follows the swing rod 200 to move, and the second transmission assembly 600 will drive the base 100 to rotate reversely along the first direction a, so as to realize synchronous linkage rotation of two axial positions.

When the linkage hinge mechanism 1000 is applied to an electronic device, in combination with (a) and (b) of fig. 5, the first carrier 300 is fixed to the first component 2000 (e.g., a display screen), the second carrier 400 is fixed to the bottom component 3000 (e.g., a keyboard), and the second carrier 400 is configured to be in a stationary state. Referring to fig. 5 (a), when the display is in the flat panel mode, the display is stacked on the bottom member 3000. In a state where the second carrier 400 is at rest, i.e., the bottom member 3000 remains at rest, referring to (b) of fig. 5, the base 100 is rotated with respect to the bottom member 3000 to be gradually unfolded during the tilting of the flat panel mode display screen until the display screen is adjusted to a predetermined tilt-up posture. During the process of tilting the display screen in the flipped-up position on the bottom member 3000, the display screen is gradually flipped reversely, and the base 100 is rotated with respect to the bottom member 3000 to be gradually stacked on the bottom member 3000 until the display screen is in the tablet mode. The rotation direction of the base 100 is opposite during the display screen turning up and turning down. With the adoption of the linkage hinge mechanism 1000, the possibility of scraping the bottom part 3000 in the process of turning up or turning over the display screen can be reduced, and the two positions of the display screen side and the bottom part 3000 side synchronously rotate in a linkage manner, so that the turning operation experience is improved.

A first comparative example, an electronic apparatus, is described below, referring to fig. 6 (a) and (b), in which a four-bar and semi-automatic sliding mechanism is employed between the display screen 10 and the base member 20, to achieve synchronous linkage of two positions on the display screen 10 side and the base member 20 side, and a tablet mode and a flip-up mode of the display screen 10. In order to enable the flat panel display 10 to be stacked on the base member 20, the base member 20 needs to be provided with a slot 21 having a large area to accommodate the plurality of links 30. The plurality of links 30 protrude from the slot 21 during the course of the flat mode display 10 being gradually turned up. In order to achieve the predetermined flipped-up posture of the display screen 10, the distance d between the bottom ends of the two links 30 farthest from each other needs to be greater than 10mm, and the plurality of links 30 after being unfolded occupy a large space in structure.

In contrast to the first comparative example, referring to fig. 2 and (a) and (b) of fig. 5, with the electronic device of the linkage hinge mechanism 1000 according to the embodiment of the present application, the first carrier 300 is fixed on the first component 2000 (such as a display screen), the second carrier 400 is fixed on the bottom component 3000, and the bottom component 3000 does not need to be provided with a slot with a larger area. As shown in fig. 5 (a), the display screen in the flat panel mode is stacked on the bottom member 3000, and the base 100 and the swing link 200 are positioned between the display screen and the bottom member 3000 without taking up excessive space of the bottom member 3000. As shown in fig. 5 (b), after the display screen is adjusted to a predetermined flipped-up posture, the base 100 and the swing lever 200 are positioned between the display screen and the bottom member 3000, and occupy a small space in terms of structure. It will be appreciated that the first carrier 300 and the second carrier 400 may be fixed to different other components, respectively, and have the effect of occupying a small space.

For example, referring to fig. 2, the base 100 and the swing link 200 are both configured in a plate shape, and the swing link 200 is stacked on one side of the base 100, so that the link hinge mechanism 1000 is light, thin and beautiful, and does not occupy too much space of the display screen and the bottom member 3000.

When the length of the base 100 and the length of the swing link 200 are set to be relatively long, synchronous interlocking rotation at a relatively long distance from two axis positions can be achieved. The length of the base 100 refers to the distance from the first end 100a to the second end 100b of the base 100 in the extending direction. The length of the swing link 200 refers to the distance from the first end 200a to the second end 200b of the swing link 200 in the extending direction.

In some embodiments, referring to fig. 2 and 7, the base 100 has a limit structure 111 for limiting the swing range of the swing link 200. By arranging the limiting structure 111, the swing rod 200 moves within a preset swing angle range, the possibility that the swing rod 200 is separated from the base 100 is reduced, and the working reliability of the mechanism is improved.

There are a number of alternative implementations in providing the spacing structure 111.

The first implementation manner of the limiting structure 111 is: referring to fig. 2 and 7, the limiting structure 111 includes a blocking wall 1111 on the base 100, where the blocking wall 1111 is used to block the swing rod 200 to limit the swing range of the swing rod 200.

The swing link 200 is rotatably coupled to the base 100, and when the swing link 200 is rotated to a predetermined angle, the blocking wall 1111 blocks the swing link 200 from continuing to swing, so that a maximum swing angle of the swing link 200 can be defined.

For example, a bar-shaped blocking wall 1111 is disposed on the base 100, when the extending directions of the swing link 200 and the base 100 are parallel to each other, a predetermined distance is maintained between the blocking wall 1111 and the swing link 200, and when the swing link 200 rotates to a predetermined angle in the opposite directions relative to the base 100, one end of the swing link 200 is blocked by the bar-shaped blocking wall 1111, so as to limit the maximum swing angle of the swing link 200 in one direction. The direction from the first end 200a to the second end 200b of the swing link 200 is the extending direction thereof. The direction from the first end 100a to the second end 100b of the base 100 is the extending direction thereof. Of course, the barrier wall 1111 may be provided in other numbers and shapes.

The second limiting structure 111 is implemented in the following manner: referring to fig. 2 and 7, the limiting structure 111 includes a limiting post 1112 located on the base 100, the swing rod 200 has a guiding slot 201 for sliding the limiting post 1112, and the guiding slot 201 extends circumferentially with a rotation axis of the swing rod 200 as a center.

The swing rod 200 is rotatably connected to the base 100, and the limit column 1112 can slide along the guide groove 201, and when the swing rod rotates to a predetermined angle, the inner end surface of the guide groove 201 is blocked by the limit column 1112, so that the maximum swing angle of the swing rod 200 is limited.

For example, two limiting columns 1112 are disposed on the base 100, the two limiting columns 1112 are respectively located at two sides of the rotation axis of the swing rod 200, two guiding grooves 201 are respectively disposed at corresponding positions on the swing rod 200, and the two limiting columns 1112 slide in the two guiding grooves 201 in a one-to-one correspondence manner. The limit posts 1112 and the guide slots 201 cooperate to define a maximum swing angle of the swing link 200.

In addition, a limit column 1112 is disposed on the base 100, and a guide groove 201 is disposed on the swing rod 200, so that the swing range of the swing rod 200 can be limited.

It can be appreciated that one of the above two limiting structures 111 may be selected, and two limiting structures 111 may be selected at the same time.

In some embodiments, referring to fig. 2 and 7 to 9, the base 100 has a receiving groove 112 for receiving the swing link 200, and the cover 120 is fixed on the base 100, so that the swing link 200 is limited on the base 100 along the rotation axis direction of the swing link 200.

The swing link 200 is disposed in the receiving groove 112 of the base 100, and the cover 120 is disposed on the base 100, so that the swing link 200 is held between the base 100 and the cover 120, the swing link 200 and the parts mounted on the swing link 200 are prevented from tilting, and the swing link 200 cannot be seen from the outside, so that the link hinge mechanism 1000 looks light, thin and beautiful.

Wherein the cover 120 may be riveted, fastened or otherwise secured to the base 100.

In some embodiments, referring to fig. 7, 10 and 11, the swing rod 200 is pivotally connected to the base 100 through the positioning post 113; the positioning column 113 is fixed on the base 100, and the swing rod 200 is provided with a positioning hole 202 for the positioning column 113 to pass through; or, the positioning column is fixed on the swing rod 200, and the base 100 has a positioning hole through which the positioning column passes. The direction of rotation about the axis of the positioning post 113 is the second direction B in which the swing link 200 swings.

Both the two modes can conveniently rotatably mount the swing rod 200 on the base 100, and the swing rod 200 can swing stably and reliably relative to the base 100.

Illustratively, the base 100 has a receiving groove 112 for receiving the swing rod 200, the positioning column 113 is disposed on the bottom surface of the receiving groove 112, the positioning column 113 is cylindrical, the positioning hole 202 of the swing rod 200 is a circular hole, and the positioning column 113 is disposed through the positioning hole 202 of the swing rod 200, so that the swing rod 200 can be pivoted on the base 100.

Illustratively, the base 100 is provided with a screw hole at the rotation axis of the swing rod 200, the swing rod 200 is provided with a positioning hole 202, and a bolt passes through the positioning hole 202 of the swing rod 200 and is screwed into the screw hole of the base 100, so that the swing rod 200 can be pivoted on the base 100, and the position of the swing rod 200 is defined along the rotation axis direction of the swing rod 200.

To achieve that the first carrier 300 and the second carrier 400 are pivoted to two ends of the base 100, in some embodiments, referring to fig. 12 and 13, the first transmission assembly 500 includes a first shaft 510, the first shaft 510 includes a first connecting rod 511, and the first connecting rod 511 is synchronously rotatably connected to the first carrier 300 and pivoted to the first end 100a of the base 100; the second transmission assembly 600 includes a second shaft body 610, the second shaft body 610 includes a second connecting rod 611, and the second connecting rod 611 is synchronously rotatably connected to the second carrier 400 and pivotally connected to the second end 100b of the base 100.

Taking the first carrier 300 as an example, the first connecting rod 511 in the first shaft body 510 is connected to the first carrier 300 in a synchronous rotation manner, i.e. the first connecting rod 511 can rotate along with the first carrier 300. The synchronous rotational connection may be a profile connection, a keyed connection or other connection, where the shaft and the parts attached to the shaft cannot rotate relative to each other but only in a synchronous manner. The first connecting rod 511 can rotate at the first end 100a of the base 100, so that the first carrier 300 is pivoted at the first end 100a of the base 100, and the structure is simple and the assembly is easy. The second carrier 400 is similar to the first carrier 300 except that it is disposed at the second end 100b of the base 100.

Wherein, the axes of the first shaft body 510 and the second shaft body 610 are parallel, that is, the pivot axis 301 of the first carrier 300 relative to the base 100 and the pivot axis 401 of the second carrier 400 relative to the base 100 are parallel.

When the rotational degree of freedom of the second carrier 400 is not limited, the first carrier 300 is rotated in the first direction a, and the second carrier 400 is rotated in the first direction a by the cooperation of the first transmission assembly 500, the swing link 200 and the second transmission assembly 600, that is, the rotational axes of the second carrier 400 and the first carrier 300 are parallel and the rotational directions are the same.

When the rotational degree of freedom of the second carrier 400 is limited, that is, the second carrier 400 is kept stationary, the first carrier 300 is rotated in the first direction a, and the rotational axes of the base 100 and the first carrier 300 are parallel with each other by the cooperation of the first transmission assembly 500, the swing link 200 and the second transmission assembly 600, so that the base 100 will rotate in the opposite direction of the first direction a.

There are a number of alternative implementations when providing the first transmission assembly 500 and the second transmission assembly 600.

The first transmission assembly is realized by a worm and gear transmission mode:

referring to fig. 14, the first transmission assembly 500 includes a first shaft 510 and a first gear portion 520 fixed to the first end 200a of the swing link 200, and referring to fig. 13, the first shaft 510 includes a first connecting rod 511 and a first worm portion 512 coaxially connected, the first connecting rod 511 is synchronously rotatably connected to the first carrier 300 and pivotally connected to the first end 100a of the base 100, and the first worm portion 512 and the first gear portion 520 are engaged with each other.

Referring to fig. 15, the second transmission assembly 600 includes a second shaft body 610 and a second gear portion 620 fixed to the second end 200b of the swing link 200, and referring to fig. 13, the second shaft body 610 includes a second connecting rod 611 and a second worm gear portion 612 coaxially connected, the second connecting rod 611 is synchronously rotatably connected to the second carrier 400 and pivotally connected to the second end 100b of the base 100, and the second worm gear portion 612 and the second gear portion 620 are engaged with each other.

Taking the first transmission assembly 500 as an example, the first connecting rod 511 in the first shaft body 510 is connected to the first bearing frame 300 in a synchronous rotating manner, the first connecting rod 511 can rotate relative to the first end 100a of the base 100, the first end 200a of the swing rod 200 is fixed with the first gear portion 520, the first gear portion 520 can be understood as a part of the structure of the worm wheel, and the first gear portion 520 and the first worm portion 512 are meshed to form the worm and gear transmission.

The first gear portion 520 may be riveted or otherwise fixed to the first end 200a of the swing link 200.

The second transmission assembly 600 is similar to the first transmission assembly 500 except that it is disposed at the second end 200b of the swing link 200 and the second end 100b of the base 100.

When the first carrier 300 is rotated in the first direction a, the first shaft body 510 rotates along with the first carrier 300, and the first gear portion 520 is meshed with the first worm gear portion 512, so as to drive the first gear portion 520 to rotate in a certain range along the second direction B, or it is understood that the first gear portion 520 slides in a certain range along the axis direction of the first worm gear portion 512, so as to drive the swing rod 200 fixed with the first gear portion 520 to rotate in the second direction B.

Similarly, the swing rod 200 drives the second gear portion 620 to rotate in the second direction B within a certain range, or it is understood that the second gear portion 620 slides in the axial direction of the second worm portion 612 within a certain range.

In the rotational degree of freedom of the second carrier 400, the second gear portion 620 is engaged with the second worm portion 612 in the second shaft body 610, the second gear portion 620 drives the second shaft body 610 to rotate along the first direction a, and the second connecting rod 611 in the second shaft body 610 is synchronously rotatably connected to the second carrier 400, and the second shaft body 610 drives the second carrier 400 to rotate along the first direction a. That is, the first and second carriers 300 and 400 are respectively located at two ends of the base 100, and the second carrier 400 is rotated in the first direction a under the cooperation of the first transmission assembly 500, the swing link 200 and the second transmission assembly 600 during the rotation of the first carrier 300 relative to the base 100 in the first direction a.

In practical applications, referring to fig. 5 (a) and (b), the first carrier 300 may be fixed to the first component 2000 (e.g. a display screen), and the second carrier 400 may be fixed to the bottom component 3000 (e.g. a keyboard), and the bottom component 3000 may remain stationary, i.e. the second carrier 400 may remain stationary. When the second carrier 400 is kept at rest and the first carrier 300 rotates in the first direction a, the base will rotate in the opposite direction to the first direction a by the cooperation of the first transmission assembly 500, the swing link 200 and the second transmission assembly 600.

The second transmission assembly is realized by a transmission mode of a telescopic sliding block and a lead screw sliding block:

referring to fig. 16, the first transmission assembly 500 includes a first shaft 510 and a first slider 530 slidably mounted on the first end 200a of the swing link 200, the first shaft 510 includes a first connecting rod 511 and a first screw portion 513 coaxially connected, similar to the embodiment of fig. 12 and 13, in which the first connecting rod 511 is synchronously rotatably connected to the first carrier 300 and pivotally connected to the first end 100a of the base 100, and in which, in conjunction with fig. 16, the first screw portion 513 is threadedly connected to a screw hole of the first slider 530;

referring to fig. 16, the second transmission assembly 600 includes a second shaft body 610 and a second slider 630 slidably mounted on the second end 200b of the swing link 200, the second shaft body 610 includes a second connecting rod 611 and a second screw rod portion 613 coaxially connected, and similar to the embodiment of fig. 12 and 13, the second connecting rod 611 is synchronously rotatably connected to the second carrier 400 and pivotally connected to the second end 100b of the base 100, and in conjunction with fig. 16, the second screw rod portion 613 is screwed with the screw hole of the second slider 630.

Taking the first transmission assembly 500 as an example, the first connecting rod 511 in the first shaft body 510 is synchronously rotatably connected to the first bearing frame 300, the first connecting rod 511 can rotate relative to the first end 100a of the base 100, the first end 200a of the swing rod 200 is slidably provided with the first slider 530, and the first screw portion 513 is in threaded transmission with the screw hole of the first slider 530.

The first slider 530 is slidably mounted at the first end 200a of the swing link 200, and may be that one of two positions of the first slider 530 and the swing link 200 is provided with the sliding portion 203, and the other position is provided with the sliding slot 531, and the sliding portion 203 may slide back and forth along the sliding slot 531. For example, the first slider 530 may linearly slide on the swing link 200 along the length direction of the swing link 200.

The balls 532 are disposed in the first slider 530, and the first slider 530 and the first screw portion 513 form a ball screw mechanism, so that the transmission efficiency is high, and the turning operation of the linkage hinge mechanism 1000 is facilitated.

When the first carrier 300 is rotated along the first direction a, the first shaft 510 rotates along with the first carrier 300, and the first screw portion 513 and the screw hole of the first slider 530 are in threaded transmission, so as to drive the first slider 530 to linearly move along one side of the first screw portion 513 in the axial direction, and the first slider 530 and the swing rod 200 can slide relative to each other, so as to drive the swing rod 200 to rotate along the second direction B. Similarly, the swing rod 200 drives the second slider 630 to rotate along the second direction B.

The second slider 630 and the swing link 200 are slidably moved to each other without limiting the rotational degree of freedom of the second carrier 400, and the second slider 630 linearly moves along one side of the second screw portion 613 in the axial direction, and the movement directions of the second slider 630 and the first slider 530 are opposite. The second screw rod portion 613 and the screw hole of the second slider 630 are in threaded transmission, the second slider 630 drives the second screw rod portion 613 to rotate along the first direction a, the second connecting rod 611 is synchronously connected to the second support 400 in a rotating manner, and the second shaft 610 drives the second support 400 to rotate along the first direction a. That is, the first and second carriers 300 and 400 are respectively located at two ends of the base 100, and the second carrier 400 is rotated in the first direction a under the cooperation of the first transmission assembly 500, the swing link 200 and the second transmission assembly 600 during the rotation of the first carrier 300 relative to the base 100 in the first direction a.

In order to maintain the first carrier 300 and the second carrier 400 at a predetermined angle relative to the base 100, in some embodiments, referring to fig. 2, a first rotational damping structure 700 is provided on the first transmission assembly 500 for generating a friction torque satisfying the relative rest of the first carrier 300 and the base 100; a second rotational damping structure 800 is provided on the second transmission assembly 600 for generating a frictional torque satisfying the relative rest of the second carrier 400 and the base 100.

In this embodiment, in combination with (b) of fig. 5, by providing the first rotary damping structure 700, after the angle between the first carrier 300 and the base 100 is adjusted, a friction moment can be generated between the first carrier 300 and the base 100, a weight moment is generated by the first carrier 300 and a component (e.g., the first component 2000) mounted on the first carrier 300, and the friction moment and the weight moment are balanced, so that the angle between the first carrier 300 and the base 100 can be maintained.

By providing the second rotary damping structure 800, after the angle between the second carrier 400 and the base 100 is adjusted, a friction moment can be generated between the second carrier 400 and the base 100, and in a state where the second carrier 400 is kept stationary, a weight moment is generated by the base 100, the swing link 200, the first carrier 300, and a component (e.g., the first component 2000) mounted on the first carrier 300, and the friction moment and the weight moment are balanced, so that the angle between the second carrier 400 and the base 100 can be maintained.

In the first comparative example electronic apparatus shown in fig. 6, a four-bar and semi-automatic sliding mechanism is employed between the display screen 10 and the base member 20, and linkage of two positions on the display screen 10 side and the base member 20 side, and a tablet mode and a flip-up mode of the display screen 10 are realized. The flip mode can only realize single-angle hovering, and the user experience is poor.

The second comparative example, an electronic device, is provided below, in which a rotating shaft mechanism is disposed on a bottom member, and a flexible knitting hinge is adopted on a display screen side, where the flexible knitting hinge cannot generate friction moment, so that a multi-angle stable hovering effect of the display screen cannot be achieved, and only a hovering effect can be achieved through magnet attraction at a predetermined angle. In the electronic apparatus of the second comparative example, the two positions of the display screen side and the bottom member side cannot be linked, the bottom member is easily scraped in the process of turning up or turning over the display screen, and the operation experience of turning up or turning over the display screen is poor.

Compared to the first comparative example or the second comparative example, after the electronic device adopts the linkage hinge mechanism 1000 with the first rotary damping structure 700 and the second rotary structure in this application, referring to (b) in fig. 5, the first carrier 300 is fixed on the first component 2000 (such as a display screen), the second carrier 400 is fixed on the bottom component 3000, and after the gesture of the display screen is adjusted, the multi-angle stable hovering effect of the display screen is realized through the two rotary damping structures, so that the display screen is kept in a predetermined flipped gesture, and the user can conveniently watch and use the electronic device.

Compared with the second comparative example, after the electronic device adopts the linkage hinge mechanism 1000, the possibility of scraping the bottom part 3000 in the process of turning up or turning over the display screen can be reduced, and the two positions on the display screen side and the bottom part 3000 side synchronously rotate in a linkage manner, so that the turning operation experience is improved.

There are a number of alternative implementations when providing the first rotational damping structure 700.

The first implementation manner of the first rotary damping structure 700 is a damping rotating shaft formed by combining a friction plate and an elastic piece:

referring to fig. 12, 17 and 18, the base 100 has a first support 130, a first connecting rod 511 is disposed through the first support 130 and can rotate relative to the first support 130, and a profile connection is formed between the first connecting rod 511 and the first carrier 300; the first rotational damping structure 700 includes a first friction plate 710 and a first elastic member 720; the first friction plate 710 is connected to the first connecting rod 511 in a profile manner and is disposed adjacent to the first support 130 in the axial direction of the first shaft body 510; the first elastic member 720 is disposed on the first connecting rod 511, and is configured to provide an axial force to the first shaft 510 to enable the first friction plate 710 to abut against the first support 130 along the axial direction of the first shaft 510.

In this embodiment, the first support 130 is a part of the base 100 and can be regarded as a stationary component. When the first carrier 300 rotates along the first direction a relative to the first support 130, the first connecting rod 511 in the first shaft body 510 can synchronously rotate along with the first carrier 300, the first friction plate 710 can synchronously rotate along with the first connecting rod 511, and the first carrier 300, the first shaft body 510 and the first friction plate 710 can be regarded as a movable component, and the movable component can rotate relative to the stationary component.

Under the axial force of the first elastic member 720, the first friction plate 710 axially abuts against the first support 130, so that a positive pressure is generated between the first friction plate 710 and the first support 130, and a friction moment is generated between the first friction plate 710 and the first support 130, that is, a friction moment is generated between the movable component and the stationary component, the first carrier 300 and the component mounted on the first carrier 300 generate a weight moment, the friction moment and the weight moment are balanced, a predetermined included angle is maintained between the first support 130 and the first carrier 300, and a free hovering effect of the first carrier 300 is realized.

The base 100 is configured as an assembly structure of the base body 110 and the first support 130, and the first support 130 may be fastened to the base body 110 by a fastener or other means, so as to facilitate assembly of the first shaft 510, the first friction plate 710, the first elastic member 720, and the like.

The first resilient member 720 may be a spring, a plurality of axially stacked belleville springs, or other resilient structure. By varying the structural parameters, number, and amount of compression of the first resilient member 720, the amount of axial force provided by the first resilient member 720 to the first shaft body 510 may be varied.

By profiled connection is meant a connection in which a shaft of non-circular cross section and a hub bore of identical profile cooperate to transmit motion and torque, the shaft and the parts mounted on the shaft being axially movable relative to each other. For example, the first connecting rod 511 and the first supporting frame 300 are connected in a profile manner, the first connecting rod 511 is provided with a single-side flat feature, that is, the cross section of the first connecting rod 511 is provided with a D-shaped, the first supporting frame 300 is provided with an adapted D-shaped hole, and the first connecting rod 511 passes through the hole of the first supporting frame 300, so that the first connecting rod 511 and the first supporting frame 300 can be connected in a synchronous rotation manner. The non-circular cross-section of the profile connection may be of other shapes than D-shaped.

Taking the first shaft body 510 including the first worm portion 512 as an example, the first elastic member 720 is disposed on the first connecting rod 511, and the first elastic member 720 is compressed and disposed at a proper position, so as to provide an axial force to the first shaft body 510 to generate a friction torque between the first friction plate 710 and the first support 130.

Illustratively, the first elastic member 720 is compressed between the first carrier 300 and the positioning member 516 fixed to the end of the first connecting rod 511, and the positioning member 516 may be a pin or a nut. The first shaft body 510 receives an axial force by the first elastic member 720, and the first friction plate 710 is tightly clamped between one end surface of the first worm part 512 and the first support 130 in the axial direction of the first shaft body 510, so that a positive pressure is generated between the first friction plate 710 and the first support 130, and a friction moment is generated between the first friction plate 710 and the first support 130.

Illustratively, the first elastic member 720 is compressed and disposed between one end surface of the first worm portion 512 and the first friction plate 710, and the positioning member at the end of the first connecting rod 511 abuts against the first carrier 300 along the axial direction of the first shaft 510. The first shaft body 510 receives an axial force under the action of the first elastic member 720, and the first friction plate 710 is tightly supported on the first support 130 along the axial direction of the first shaft body 510, so that a positive pressure is generated between the first friction plate 710 and the first support 130, and a friction moment is generated between the first friction plate 710 and the first support 130.

In the case where the first shaft body 510 includes the first screw portion 513, similarly, the replacement of the position of the first worm portion 512 with the first screw portion 513 can also generate a friction moment between the first friction plate 710 and the first support 130.

When the first support 130 is provided, referring to fig. 14 and 18, the first support 130 has a first connection lug 131, and the first connection lug 131 has a through hole 1311 through which the first connection rod 511 passes. The first coupling tab 131 has a first fitting groove 1312 communicating with the through hole 1311. The first friction plate 710 is assembled in the first assembly groove 1312, and under the action of the first elastic member 720, the first friction plate 710 is abutted against the inner wall of the first assembly groove 1312, so that the first friction plate 710 is protected and assembled. The first support 130 further has a first plate-shaped portion 132 connected to the first connection lug 131, and the first plate-shaped portion 132 can be fixed to the base body 110, so that the structure is compact and the assembly is easy.

When the first carrier 300 is provided, referring to fig. 14, the first carrier 300 has a second connection lug 310, and the second connection lug 310 has a through hole through which the first connection rod 511 passes. The first carrier 300 further has a second plate-shaped portion 320 connected to the second connection lug 310, and the second plate-shaped portion 320 can be fixed on the display screen, so that the occupied space is small, and the assembly with the display screen is easy.

In order to raise the friction torque that the first rotary damping structure 700 can generate in a limited space, in some embodiments, referring to fig. 18, the first rotary damping structure 700 further includes a second friction plate 730 and a first spacer 740 sequentially staggered in the axial direction of the first connection rod 511; the first connecting rods 511 penetrate through the second friction plates 730 and the first gaskets 740 which are sequentially staggered, the molded surfaces of the second friction plates 730 are connected to the first connecting rods 511, and the first gaskets 740 are synchronously and rotatably connected to the first support 130; the second friction plates 730 and the first shims 740, which are sequentially staggered, are interposed between the first supporter 130 and the first carrier 300 in the axial direction of the first connecting rod 511 by the first elastic member 720.

In this embodiment, the first support 130 is part of the base 100, and the first spacer 740 can rotate along with the first support 130, so that the first support 130 and the first spacer 740 can be regarded as a stationary component. When the first bearing frame 300 rotates along the first direction a relative to the first support 130, the first connecting rod 511 in the first shaft body 510 can synchronously rotate along with the first bearing frame 300, the second friction plate 730 can synchronously rotate along with the first connecting rod 511, and the first bearing frame 300, the first shaft body 510 and the second friction plate 730 can be regarded as a movable component, and the movable component can rotate relative to the stationary component.

The second friction plates 730 and the first shims 740, which are sequentially staggered, are tightly clamped between the first supporter 130 and the first carrier 300 under the axial force of the first elastic member 720. Positive pressure is generated between the adjacent second friction plate 730 and the first gasket 740, and thus friction torque is generated between the adjacent second friction plate 730 and the first gasket 740, that is, friction torque is generated between the movable member and the stationary member, and the friction torque is lifted in a limited space, and the friction torque and the weight torque are balanced, so that a predetermined angle is maintained between the first supporter 130 and the first carrier 300.

By varying the structural parameters and numbers of second friction plates 730 and first pads 740, the friction torque between second friction plates 730 and first pads 740 may be adjusted. Illustratively, the second friction plate 730 and the first shim 740 are respectively configured in two and staggered in sequence.

When the first support 130 has the first coupling lug 131, the first coupling lug 131 has the second fitting groove 1313 communicating with the through hole 1311, and the second friction plate 730 and the first spacer 740 are fitted in the second fitting groove 1313, facilitating the protection and fitting of the second friction plate 730 and the first spacer 740. The outer wall of the second friction plate 730 and the inner wall of the second fitting groove 1313 may be coupled by a profile or other means to facilitate fitting.

To facilitate assembly of the first shaft body 510 and the first elastic member 720, in some embodiments, referring to fig. 13 and 17, the first shaft body 510 further includes a first screw portion 514 coaxially connected to the first connecting rod 511, and a first supporting portion 515 coaxially disposed with the first screw portion 514; a first nut 516 is screwed to the first screw portion 514; the first elastic member 720 is sleeved outside the first connecting rod 511, and the first elastic member 720 is compressed between the first carrier 300 and the first nut 516; the first supporting portion 515 is disposed through the first end 100a of the base 100 and can rotate relative to the base 100; the portion of the first supporting portion 515 penetrating the base 100 is provided with a first stopper 517 for defining an axial position of the first supporting portion 515.

In this embodiment, the first supporting portion 515 is rotatably connected to the first end 100a of the base 100, and defines an axial position of the first shaft 510 through the first limiting member 517. The first limiting member 517 may be a clamping spring or other structures that are clamped on the first supporting portion 515. The first elastic member 720 is compressed between the first carrier 300 and the first nut 516 by locking the first nut 516 to provide an axial force to the first shaft body 510, so that the first friction plate 710 is abutted against the first support 130 along the axial direction of the first connecting rod 511, and the second friction plates 730 and the first gaskets 740 which are sequentially staggered are clamped between the first support 130 and the first carrier 300 along the axial direction of the first connecting rod 511, thereby generating a friction moment. By adjusting the position of the first nut 516 relative to the first screw portion 514, the compression amount of the first elastic member 720 can be changed, thereby changing the magnitude of the friction torque.

The second implementation of the first rotary damping structure 700 is a wrapped-round shaft:

referring to fig. 19, the first rotary damping structure 700 includes a first elastic rounded portion 750 disposed at the first end 100a of the base 100, and the first connecting rod 511 is disposed through the first elastic rounded portion 750; when the first connecting rod 511 rotates by a predetermined angle relative to the first elastic rounded portion 750, a friction torque satisfying the static condition of the first connecting rod 511 relative to the first elastic rounded portion 750 can be generated between the first connecting rod 511 and the first elastic rounded portion 750.

In this embodiment, the first connecting rod 511 is disposed in the first elastic rounding portion 750 in a penetrating manner and can rotate relatively, so that a portion of the inner wall of the first elastic rounding portion 750 and a portion of the outer wall of the first connecting rod 511 are set to have interference amounts. By rotating the first connection rod 511 until there is an interference between the first elastic rounded portion 750 and the first connection rod 511, the first elastic rounded portion 750 is elastically deformed, so that a friction moment is generated between the first elastic rounded portion 750 and the first connection rod 511, a weight moment is generated between the first carrier 300 and a component mounted on the first carrier 300, and the friction moment and the weight moment are balanced, so that a predetermined angle is maintained between the base 100 and the first carrier 300, and a free hovering effect of the first carrier 300 is achieved.

Illustratively, a portion of the inner wall of the first elastic rounded portion 750 is disposed in a first plane, and a portion of the outer wall of the first connecting rod 511 is disposed in a second plane. When the first plane and the second plane are disposed opposite to each other, there is no interference between the first elastic rounded portion 750 and the first connection rod 511. When the first plane and the second plane are staggered, that is, when a part of the first plane is aligned with the smooth outer surface of the first connecting rod 511 or the second plane is aligned with the smooth inner surface of the first elastic rounded portion 750, there is an interference between the first elastic rounded portion 750 and the first connecting rod 511, and thus a friction moment is generated.

There are a number of alternative implementations when providing the second rotational damping structure 800.

The first second rotary damping structure 800 is implemented by a damping shaft formed by combining a friction plate and an elastic member:

referring to fig. 20 to 22, the base 100 has a second support 140, and a second connecting rod 611 is disposed through the second support 140 and can rotate relative to the second support 140, and the second connecting rod 611 is in profile connection with the second support 400; the second rotational damping structure 800 includes a third friction plate 810 and a second elastic member 820; the third friction plate 810 is connected to the second connecting rod 611 in a profile manner and is disposed adjacent to the second support 140 in the axial direction of the second shaft body 610; the second elastic member 820 is disposed on the second connecting rod 611 and is used for providing an axial force to the second shaft body 610 so that the third friction plate 810 abuts against the second support 140 along the axial direction of the second shaft body 610.

In this embodiment, the second support 140 is a part of the base 100 and can be regarded as a movable member, as described in the case where the second carrier 400 is kept in a stationary state. The second connecting rod 611 and the second carrier 400 in the second shaft body 610 remain relatively stationary, and the third friction plate 810 and the second connecting rod 611 remain relatively stationary, and the second carrier 400, the second shaft body 610, and the third friction plate 810 may be regarded as one stationary member. The movable member rotates relative to the stationary member.

Under the axial force of the second elastic member 820, the third friction plate 810 is axially abutted against the second support 140, so that a positive pressure is generated between the third friction plate 810 and the second support 140, and a friction moment is generated between the third friction plate 810 and the second support 140, namely, a friction moment is generated between the movable part and the stationary part. The base 100, the swing link 200, the first carrier 300, and the components mounted on the first carrier 300 generate a moment of gravity. The frictional moment and the weight moment are balanced so that a predetermined angle is maintained between the second support 140 and the second carrier 400, and a free hover effect of the base 100 is achieved.

The base 100 is provided as an assembly structure of the base body 110 and the second support 140, and the second support 140 may be fastened to the base body 110 by fasteners or other means, so that assembly of the second shaft body 610, the third friction plate 810, the second elastic member 820, etc. is facilitated.

The second resilient member 820 may be a spring, a plurality of axially stacked belleville springs or other resilient structure. By varying the structural parameters, number, and amount of compression of the second resilient member 820, the amount of axial force provided by the second resilient member 820 to the second shaft body 610 can be varied.

Taking the second shaft body 610 including the second worm part 612 as an example, the second elastic member 820 is disposed on the second connecting rod 611, and the second elastic member 820 is compressed and disposed at a proper position, an axial force can be provided to the second shaft body 610 to generate a friction torque between the third friction plate 810 and the second support 140.

Illustratively, the second elastic member 820 is compressed between the second carrier 400 and a positioning member fixed at the end of the second connecting rod 611, which may be a pin or a nut, or the like. The second shaft body 610 receives an axial force by the second elastic member 820, and the third friction plate 810 is tightly clamped between an end surface of the second worm part 612 and the second support 140 in the axial direction of the second shaft body 610, so that a positive pressure is generated between the third friction plate 810 and the second support 140, and a friction moment is generated between the third friction plate 810 and the second support 140.

Illustratively, the second elastic member 820 is compressed and disposed between an end surface of the second worm part 612 and the third friction plate 810, and the positioning member at the end of the second connecting rod 611 abuts against the second carrier 400 along the axial direction of the second shaft 610. The second shaft body 610 receives an axial force under the action of the second elastic member 820, and the third friction plate 810 is tightly abutted against the second support 140 in the axial direction of the second shaft body 610, so that a positive pressure is generated between the third friction plate 810 and the second support 140, and a friction moment is generated between the third friction plate 810 and the second support 140.

In the case where the second shaft body 610 includes the second screw portion 613, similarly, the replacement of the position of the second worm portion 612 with the second screw portion 613 can also generate a friction torque between the third friction plate 810 and the second support 140.

When the second support 140 is provided, referring to fig. 20 and 22, the second support 140 has a first connection portion 141, and the first connection portion 141 has a via 1411 through which the second connection rod 611 passes. The first connection portion 141 has a first mounting groove 1412 communicating with the via 1411. The third friction plate 810 is assembled in the first installation groove 1412, and under the action of the second elastic member 820, the third friction plate 810 is abutted against the inner wall of the first installation groove 1412, so that the protection and assembly of the third friction plate 810 are facilitated. The first support 130 further has a first plate-shaped body 142 connected to the first connection portion 141, and the first plate-shaped body 142 can be fixed to the base body 110, so that the structure is compact and the assembly is easy.

When the second carrier 400 is provided, the second carrier 400 has a second connection portion 410, and the second connection portion 410 has a via hole through which the second connection rod 611 passes. The second carrier 400 further has a second plate-like body 420 connected to the second connection portion 410, and the second plate-like body 420 can be fixed to the bottom member 3000, so that it occupies a small space and is easy to assemble with the bottom member 3000.

In order to raise the friction torque that the second rotary damping structure 800 can generate in a limited space, in some embodiments, referring to fig. 22, the second rotary damping structure 800 further includes fourth friction plates 830 and second shims 840 that are staggered in order along the axial direction of the second connecting rod 611; the second connecting rods 611 penetrate through the fourth friction plates 830 and the second gaskets 840 which are arranged in a staggered manner in sequence, the molded surfaces of the fourth friction plates 830 are connected to the second connecting rods 611, and the second gaskets 840 are synchronously and rotatably connected to the second support 140; the fourth friction plate 830 and the second spacer 840, which are sequentially staggered, are interposed between the second supporter 140 and the second carrier 400 in the axial direction of the second connecting rod 611 by the second elastic member 820.

In this case, to illustrate that the second carrier 400 is maintained in a stationary state, the second support 140 is a part of the base 100, the second spacer 840 can rotate along with the second support 140, and the second support 140 and the second spacer 840 can be regarded as one movable member. The second connecting rod 611 and the second carrier 400 in the second shaft body 610 remain relatively stationary, and the fourth friction plate 830 and the second connecting rod 611 remain relatively stationary, and the second carrier 400, the second shaft body 610, and the fourth friction plate 830 may be regarded as one stationary member. The movable member rotates relative to the stationary member.

The fourth friction plate 830 and the second spacer 840, which are sequentially staggered, are tightly clamped between the second carrier 140 and the second carrier 400 under the axial force of the second elastic member 820. Positive pressure is generated between the adjacent fourth friction plate 830 and the second spacer 840, and thus friction torque is generated between the adjacent fourth friction plate 830 and the second spacer 840, that is, friction torque is generated between the movable member and the stationary member, and the friction torque is lifted in a limited space, and the friction torque and the weight torque are balanced, so that a predetermined angle is maintained between the second supporter 140 and the second carrier 400.

By varying the structural parameters and numbers of fourth friction plate 830 and second spacer 840, the friction torque between fourth friction plate 830 and second spacer 840 may be adjusted. Illustratively, the fourth friction plate 830 and the second shim 840 are respectively configured in two and staggered in sequence.

When the second carrier 140 has the first coupling portion 141, the first coupling portion 141 has the second mounting groove 1413 communicating with the via 1411, and the second friction plate 730 and the second spacer 840 are mounted in the second mounting groove 1413, facilitating the protection and assembly of the fourth friction plate 830 and the second spacer 840. The outer wall of the second friction plate 730 and the inner wall of the second mounting groove 1413 may be profiled or otherwise configured to facilitate assembly.

To facilitate assembly of the second shaft body 610 and the second elastic member 820, in some embodiments, referring to fig. 21, the second shaft body 610 further includes a second screw portion 614 coaxially connected to the second connection rod 611, and a second support portion 615 coaxially disposed with the second screw portion 614; a second nut 616 is threadedly coupled to the second screw portion 614; the second elastic member 820 is sleeved outside the second connecting rod 611, and the second elastic member 820 is compressed between the second carrier 400 and the second nut 616; the second supporting portion 615 is disposed through the second end 100b of the base 100 and can rotate relative to the base 100; the portion of the second support portion 615 that passes out of the base 100 is provided with a second stopper 617 for defining the axial position of the second support portion 615.

In this embodiment, the second supporting portion 615 is rotatably connected to the second end 100b of the base 100, and defines an axial position of the second shaft body 610 through the second limiting member 617. The second limiting part 617 may be a clamping spring or other structures clamped on the second supporting part 615. The second elastic member 820 is compressed between the second carrier 400 and the second nut 616 by locking the second nut 616 to provide an axial force to the second shaft body 610, so that the third friction plate 810 is abutted against the second support 140 along the axial direction of the second connecting rod 611, and the fourth friction plate 830 and the second gasket 840, which are sequentially staggered, are clamped between the second support 140 and the second carrier 400 along the axial direction of the second connecting rod 611, thereby generating a friction moment. By adjusting the position of the second nut 616 relative to the second screw portion 614, the compression amount of the second elastic member 820 can be changed, thereby changing the magnitude of the friction torque.

The second rotary damping structure 800 is implemented by a wrapped-round shaft:

referring to fig. 19, the second rotary damping structure 800 includes a second elastic rounded portion 850 disposed at the second end 100b of the base 100, and a second connecting rod 611 is disposed through the second elastic rounded portion 850; when the second connecting rod 611 rotates by a predetermined angle relative to the second elastic rounded portion 850, a friction torque satisfying the rest of the second connecting rod 611 relative to the second elastic rounded portion 850 can be generated between the second connecting rod 611 and the second elastic rounded portion 850.

In this embodiment, the second connecting rod 611 is disposed in the second elastic round wrapping portion 850 in a penetrating manner and can rotate relatively, so that a part of the inner wall of the second elastic round wrapping portion 850 and a part of the outer wall of the second connecting rod 611 are set to have interference amounts. By rotating the second connection rod 611 until there is an interference between the second elastic rounded portion 850 and the second connection rod 611, the second elastic rounded portion 850 is elastically deformed, so that a friction moment is generated between the second elastic rounded portion 850 and the second connection rod 611, a weight moment is generated by the base 100, the swing link 200, the first carrier 300, and components mounted on the first carrier 300, and the friction moment and the weight moment are balanced, so that a predetermined angle is maintained between the base 100 and the second carrier 400, thereby realizing a free hovering effect of the base 100.

In order to make the linkage hinge mechanism 1000 provide a better supporting effect for the display screen, in some embodiments, the swing rods 200 arranged in pairs at intervals are pivoted on the same base 100, and the swing rods 200, the first transmission assembly 500 and the second transmission assembly 600 are arranged in a one-to-one correspondence; the swing rods 200, the first bearing frames 300 and the second bearing frames 400 are arranged in a one-to-one correspondence manner; or, the same first carrier 300 is pivotally connected to the first ends 100a of the different bases 100 through different first transmission assemblies 500 in a one-to-one correspondence, and the same second carrier 400 is pivotally connected to the second ends 100b of the different bases 100 through different second transmission assemblies 600 in a one-to-one correspondence.

In this embodiment, the base 100 may be made relatively wide in the lateral direction, such as near the width dimension of the display. The direction from the first end 100a to the second end 100b of the base 100 is an extending direction, and the lateral direction and the extending direction of the base 100 are perpendicular. The first end 200a of each swing link 200 is provided with a first transmission assembly 500 and the second end 200b is provided with a second transmission assembly 600.

There are two configurations of the first carrier 300 and the second carrier 400. The first way is: each first transmission assembly 500 is connected to a first carrier 300, and each second transmission assembly 600 is connected to a second carrier 400, and all first carriers 300 are fixed to the first member 2000, and all second carriers 400 are fixed to the bottom member 3000. The second way is: the different first driving assemblies 500 are connected to the same first carrier 300, the different second driving assemblies 600 are connected to the same second carrier 400, the first carrier 300 is fixed to the first member 2000, and the second carrier 400 is fixed to the bottom member 3000.

Compared with the condition that only one swing link 200 exists, the swing links 200 and related parts which are arranged in pairs can have better supporting effect. When each first transmission assembly 500 is provided with the first rotary damping structure 700 and each second transmission assembly 600 is provided with the second rotary damping structure 800, a larger friction moment can be provided in a limited space, and a reliable free hovering effect of the first carrier 300 and the first component 2000 is achieved.

Referring to fig. 5 (a) and (b), an electronic device according to an embodiment of the present application includes a first component 2000, a bottom component 3000, and the above-mentioned linkage hinge mechanism 1000, where the first carrier 300 is fixed to the first component 2000, and the second carrier 400 is fixed to the bottom component 3000.

The electronic device provided in the embodiment of the present application, due to the adoption of the linkage hinge mechanism 1000 in the above embodiment of the present application, can reduce the possibility of scraping the bottom member 3000 in the process of turning up or turning over the first member 2000, and can synchronously and cooperatively rotate at two positions, so that the turning operation experience is improved.

For example, referring to fig. 5 (a) and (b), the electronic device may be a notebook computer having a single display screen, the first component 2000 being the display screen, and the bottom component 3000 being the keyboard. In the tablet mode shown in fig. 5 (a), a tablet-like operation can be performed. In the flip-up mode shown in fig. 5 (b), an operation similar to a notebook computer can be performed.

For example, referring to fig. 23 (a) and (b), the electronic device may be a liquid crystal (liquid crystal display, LCD) display, an All In One (AIO) computer or other electronic product, the first component 2000 may be a display screen, and the bottom component 3000 may be a keyboard or a cradle. In the flattened mode shown in fig. 23 (a), operations such as drawing can be performed. In the flip-up mode shown in fig. 23 (b), the display screen can be viewed.

For example, referring to fig. 24 (a) to (c), the electronic device may be a holster keyboard, the first component 2000 may be a support frame for supporting the tablet 2001, and the bottom component 3000 is a keyboard. As shown in fig. 24 (a), the support frame is stacked on the bottom member 3000, and the structure is compact. As shown in (b) and (c) in fig. 24, after the support frame is turned up, the tablet personal computer 2001 may be placed on the support frame.

In some embodiments, referring to (a) and (b) of fig. 25, the electronic device further includes a second member 4000, and the base 100 is fixed to the second member 4000. By the linked hinge structure, synchronous opening and closing of the first and second members 2000 and 4000 is achieved.

For example, referring to (a) and (b) of fig. 25, the electronic device may be a notebook computer having a main screen and a sub screen. The first part 2000 acts as a primary screen and the second part 4000 acts as a secondary screen, with the bottom part 3000 being the keyboard. As shown in fig. 25 (a), when the main screen is in the closed state, the main screen is overlapped on the keyboard, and the screen of the main screen faces the keyboard, which is not in the tablet mode at this time, and may be called the closed mode, and the sub-screen is located between the main screen and the keyboard. As shown in (b) of fig. 25, the sub-screen is also opened or closed synchronously during the process of turning up or closing the main screen.

Finally, it should be noted that: the foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A ganged hinge mechanism, comprising: the device comprises a base, a swing rod, a first bearing frame, a second bearing frame, a first transmission assembly and a second transmission assembly;

the base is provided with a first end and a second end which are distributed oppositely, the swing rod is provided with a first end and a second end which are distributed oppositely, and the swing rod is pivoted on the base;

the first transmission assembly and the second transmission assembly are respectively arranged at the first end and the second end of the swing rod;

the first bearing frame is pivoted to the first end of the base through the first transmission component;

the second bearing frame is pivoted to the second end of the base through the second transmission assembly;

when the first bearing frame rotates along the first direction, the first transmission assembly can move along the first bearing frame and drive the swinging rod to rotate along the second direction, and the second transmission assembly can move along the swinging rod and drive the second bearing frame to rotate along the first direction.

2. The ganged hinge mechanism of claim 1, wherein the base has a limit structure for limiting the range of oscillation of the pendulum.

3. The ganged hinge mechanism of claim 2, wherein the limit structure comprises a blocking wall on the base for blocking the pendulum bar to define a range of oscillation of the pendulum bar;

and/or, the limit structure comprises a limit column positioned on the base, the swing rod is provided with a guide groove for sliding the limit column, and the guide groove is arranged in a circumferential extending way by taking the rotation axis of the swing rod as the center.

4. A linked hinge mechanism according to any one of claims 1 to 3, wherein the base has a receiving slot for receiving the swing link, and a cover is secured to the base.

5. The ganged-hinge mechanism of any one of claims 1 to 4, wherein the pendulum bar is pivotally connected to the base by a locating post;

the positioning column is fixed on the base, and the swing rod is provided with a positioning hole for the positioning column to pass through;

or, the positioning column is fixed on the swing rod, and the base is provided with a positioning hole for the positioning column to pass through.

6. The ganged-hinge mechanism of any one of claims 1 to 5, wherein the first drive assembly comprises a first shaft comprising a first connecting rod that is synchronously rotatably connected to the first carrier and pivotally connected to the first end of the base;

the second transmission assembly comprises a second shaft body, the second shaft body comprises a second connecting rod, and the second connecting rod is synchronously connected to the second bearing frame in a rotating mode and pivoted to the second end of the base.

7. The ganged hinge mechanism of claim 6, wherein the first drive assembly further comprises a first gear section fixed to the first end of the pendulum bar, the first shaft further comprises a first worm section coaxially connected to a first connecting rod, the first worm section and the first gear section intermesh;

the second transmission assembly further comprises a second gear part fixed at the second end of the swing rod, the second shaft body further comprises a second worm part coaxially connected with the second connecting rod, and the second worm part and the second gear part are meshed with each other.

8. The ganged hinge mechanism of claim 6, wherein the first drive assembly further comprises a first slider slidably mounted to the first end of the pendulum bar, the first shaft further comprising a first lead screw portion coaxially coupled to a first connecting rod, the first lead screw portion being threadably coupled to a threaded bore of the first slider;

The second transmission assembly further comprises a second sliding block which is slidably arranged at the second end of the swing rod, the second shaft body further comprises a second screw rod part which is coaxially connected with the second connecting rod, and the second screw rod part is in threaded connection with a screw hole of the second sliding block.

9. The linked hinge mechanism of any one of claims 6 to 8, wherein the first transmission assembly is provided with a first rotational damping structure for generating a friction torque that satisfies the relative rest of the first carrier and the base;

and a second rotary damping structure is arranged on the second transmission assembly and used for generating friction moment which meets the relative static condition of the second bearing frame and the base.

10. The linkage hinge mechanism according to claim 9, wherein the base is provided with a first support, the first connecting rod is arranged on the first support in a penetrating manner and can rotate relative to the first support, and the first connecting rod is connected with the first support in a molded surface manner;

the first rotary damping structure comprises a first friction plate and a first elastic piece;

the first friction plate molded surface is connected to the first connecting rod and is arranged adjacent to the first support along the axial direction of the first shaft body;

The first elastic piece is arranged on the first connecting rod and is used for providing axial force for the first shaft body so that the first friction plate is propped against the first support along the axial direction of the first shaft body.

11. The ganged hinge mechanism of claim 10, wherein the first rotary damping structure further comprises a second friction plate and a first washer arranged alternately in sequence along the axial direction of the first connecting rod;

the first connecting rods penetrate through the second friction plates and the first gaskets which are sequentially staggered, the molded surfaces of the second friction plates are connected to the first connecting rods, and the first gaskets are synchronously and rotatably connected to the first support;

under the action of the first elastic piece, the second friction plates and the first gaskets which are sequentially staggered are clamped between the first support and the first bearing frame along the axial direction of the first connecting rod.

12. The ganged hinge mechanism of claim 9, wherein the first rotary damping structure comprises a first elastic rounded portion provided at a first end of the base, the first connecting rod passing through the first elastic rounded portion;

When the first connecting rod rotates by a preset angle relative to the first elastic rounding part, friction moment meeting the static condition of the first connecting rod relative to the first elastic rounding part can be generated between the first connecting rod and the first elastic rounding part.

13. The ganged hinge apparatus of any one of claims 1 to 12, wherein the swing arms arranged in pairs at intervals are pivotally connected to the same base, and the swing arms, the first transmission assembly and the second transmission assembly are disposed in one-to-one correspondence;

the swing rods, the first bearing frames and the second bearing frames are arranged in one-to-one correspondence; or the same first bearing frame is pivoted at the first ends of different bases in a one-to-one correspondence manner through different first transmission components, and the same second bearing frame is pivoted at the second ends of different bases in a one-to-one correspondence manner through different second transmission components.

14. An electronic device comprising a first member, a base member, and a linked hinge mechanism according to any one of claims 1 to 13, wherein the first carrier is secured to the first member and the second carrier is secured to the base member.

15. The electronic device of claim 14, further comprising a second component, the base being secured to the second component.