CN115996257A

CN115996257A - Electronic equipment, folding assembly and shell device

Info

Publication number: CN115996257A
Application number: CN202211108494.6A
Authority: CN
Inventors: 徐正一; 姜文杰; 李云勇; 马春军; 王岗超; 吴昊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2023-04-21
Also published as: CN115665289A; CN115996256A; CN114006963A; CN114006963B; WO2023065730A1

Abstract

The application discloses an electronic device, a folding assembly and a shell device. The electronic device is a foldable structure having an open state and a closed state. The electronic equipment comprises a screen and a shell device, wherein the shell device is used for bearing the screen and comprises a first shell, a second shell and a folding assembly for connecting the first shell and the second shell, and the first shell and the second shell can be relatively unfolded or relatively folded through movement of the folding assembly. The folding component is provided with a main shaft, two supporting plates and a plurality of moving parts, wherein the two supporting plates are positioned on two sides of the main shaft, and the ends of the main shaft, the two supporting plates and the plurality of moving parts are spliced when the electronic equipment is in an open state, so that a continuous supporting environment with small broken holes or without broken holes is provided, the folding component can reliably support the bending part of the screen, the risk that the bending part of the screen is sunken under the pressing or impacting is reduced, and the reliability of the screen is improved.

Description

Electronic equipment, folding assembly and shell device

Technical Field

The application relates to the technical field of foldable equipment, in particular to electronic equipment, a folding assembly and a shell device.

Background

In recent years, screens have been widely used in various foldable electronic devices because of their light weight, low breakage, and the like. The foldable electronic equipment further comprises a shell device for bearing the screen, the shell device comprises a first shell, a second shell and a folding assembly for connecting the first shell and the second shell, the first shell and the second shell can be relatively unfolded to an open state or relatively folded to a closed state through movement of the folding assembly, and the screen is unfolded or folded along with the shell device.

However, since the folding assembly is generally provided with a plurality of holes for moving the moving member, it is difficult for the folding assembly to provide a relatively complete supporting environment for the bending portion of the screen, so that the bending portion of the screen is easy to be depressed and damaged due to the pressing operation or collision of the user in the open state, and the service life of the screen is reduced.

Disclosure of Invention

The application provides an electronic equipment, folding subassembly and casing device, electronic equipment include the screen and bear the casing device of screen, and casing device is including the first casing, folding subassembly and the second casing that connect gradually, and folding subassembly can provide a comparatively complete supporting environment for the portion of bending of electronic equipment's screen, and the risk that takes place to damage when the portion of bending of messenger's screen is pressed or collide is less, has improved the reliability of screen.

In a first aspect, the present application provides an electronic device having an open state and a closed state. The electronic equipment comprises a shell device and a screen, wherein the shell device comprises a first shell, a second shell and a folding assembly, the folding assembly is connected with the first shell and the second shell, and the first shell and the second shell can be unfolded or folded relatively through movement of the folding assembly. When the shell device is relatively unfolded, the electronic equipment is in an open state, the screen is flattened, and the screen can be displayed in a full screen mode, so that the electronic equipment has a larger display area, and the watching experience and the operation experience of a user are improved. When the shell device is relatively folded, the electronic equipment is in a closed state, and the electronic equipment is small in plane size and convenient for a user to carry and store.

The screen comprises a first non-bending part, a bending part and a second non-bending part which are sequentially arranged, wherein the first non-bending part is fixed on the first shell, the second non-bending part is fixed on the second shell, and the bending part deforms in the process of relatively expanding or relatively folding the first shell and the second shell.

The folding assembly comprises a main shaft, a first fixing frame, a second fixing frame, a first swing arm, a second swing arm, a first supporting plate and a second supporting plate. The main shaft comprises a main supporting plate, and the main supporting plate is provided with a first avoiding gap and a second avoiding gap. The first fixing frame is fixedly connected with the first shell, and the second fixing frame is fixedly connected with the second shell. The first swing arm comprises a rotating end and a sliding end, the rotating end of the first swing arm comprises a first splicing block, the rotating end of the first swing arm is rotationally connected with the main shaft, and the first avoidance notch is used for avoiding the first swing arm, so that interference between the first swing arm and the main support plate does not occur, and smoothness and reliability of mechanism movement are ensured. The second swing arm includes rotation end and slip end, and the rotation end of second swing arm includes the second splice, and the rotation end of second swing arm rotates and connects the main shaft, and the breach is used for dodging to the second swing arm to the second dodging for do not take place to interfere between second swing arm and the main tributary fagging, with the smooth and easy and the reliability of guaranteeing the mechanism motion. The sliding end of the first swing arm is connected with the first fixing frame in a sliding manner, and the sliding end of the second swing arm is connected with the second fixing frame in a sliding manner.

When the electronic equipment is in an open state, the first splicing block is at least partially located in the first avoidance notch, the second splicing block is at least partially located in the second avoidance notch, the first supporting plate and the second supporting plate are respectively located at two sides of the main supporting plate, and the main supporting plate, the first splicing block, the second splicing block, the first supporting plate and the second supporting plate jointly support the bending part of the screen. At this moment, folding subassembly can provide a comparatively complete supporting environment for the portion of bending of screen, and when making the portion of bending of screen receive pressing or collide, the risk that takes place obvious sunken or damage is less to improve the reliability of screen.

In some possible implementations, the spindle has an active space, the active space communicates with the first avoidance gap and the second avoidance gap, and when the electronic device is in the closed state, the first splice block and the second splice block are transferred into the active space. At this moment, the linkage segment of first swing arm and the linkage segment of second swing arm can be close to each other through first breach and the second breach of dodging, and the interval is less between the two to folding assembly wholly forms similar water droplet form accommodation space.

In some possible implementations, the main support plate has a support surface for supporting the screen. When the electronic equipment is in an open state, the end face of the first splicing block, the end face of the second splicing block and the supporting surface of the main supporting plate are flush. At this time, the end face of the first splicing block, the end face of the second splicing block and the supporting surface of the main supporting plate are located on the same plane, and jointly support the bending part of the screen, so that a complete and flat supporting environment is provided for the bending part of the screen, and the reliability of the screen is improved.

In some possible implementations, when the electronic device is in the open state, the support surface of the first support plate, the support surface of the second support plate, the support surface of the main support plate, the end surface of the first splice block, and the end surface of the second splice block are spliced, that is, the support surface of the main support plate, the end surface of the first splice block, the support surface of the first support plate, the end surface of the second splice block, and the support surface of the second support plate are spliced together to form the support surface of the folding assembly. At this time, the supporting surface of the folding component has no broken hole or is very small in broken hole, the supporting surface of the folding component is complete, and a good supporting environment can be provided for the bending part of the screen so as to improve the reliability of the screen.

In some possible implementations, the supporting surface of the first supporting plate may be a flat surface to provide a better supporting environment for the bent portion of the screen.

In some possible implementations, the support surface of the first support plate is provided with one or more grooves with a very shallow depth, and this groove may be used, but is not limited to, for coating or installing an adhesive layer, and the bending portion of the screen is connected by the adhesive layer. It can be appreciated that the depth of the groove of the portion is small, and the area of the screen corresponding to the groove of the portion is not significantly recessed when the screen is subjected to external pressure (such as a pressing force of a user), so that the reliability of the screen is high and the service life is long.

In some possible implementations, the first support plate includes a first supplemental block and the second support plate includes a second supplemental block. When the electronic equipment is in an open state, the first supplementing block is at least partially positioned in the first avoiding notch, so that the splicing effect of the supporting surface of the first supporting plate, the end surface of the first splicing block and the supporting surface of the main supporting plate is better, and the gap between the adjacent supporting surfaces is smaller. Likewise, the second supplementary block may be located at least partially in the second avoidance gap, so that the splicing effect of the supporting surface of the second supporting plate, the end surface of the second splicing block, and the supporting surface of the main supporting plate is better, and the gap between the adjacent supporting surfaces is smaller.

In some possible implementations, the main shaft has a first arc space and a second arc space, and the main support plate further includes a first avoidance hole and a second avoidance hole, where the first avoidance hole is communicated with the first arc space, and the second avoidance hole is communicated with the second arc space.

The folding assembly further includes a first connecting arm and a second connecting arm. The first connecting arm comprises a first end and a second end, the first end of the first connecting arm comprises a first arc-shaped arm, the first arc-shaped arm is installed in the first arc-shaped space, so that the first end of the first connecting arm is rotationally connected with the main shaft, and the second end of the first connecting arm is rotationally connected with the first fixing frame. The second connecting arm comprises a first end and a second end, the first end of the second connecting arm comprises a second arc-shaped arm, and the second arc-shaped arm is arranged in the second arc-shaped space, so that the first end of the second connecting arm is rotationally connected with the main shaft, and the second end of the second connecting arm is rotationally connected with the second fixing frame.

When the electronic equipment is in an open state, the end part of the first arc-shaped arm is at least partially positioned in the first avoidance hole, at this time, the first arc-shaped arm can have a larger radian due to the design of the first avoidance hole, the matching radian of the first arc-shaped arm and the first arc-shaped space of the main support plate (namely, the radian of the first arc-shaped arm extending into the first arc-shaped space) is larger, and the relative movement of the first arc-shaped arm and the main support plate is more stable. In addition, the risk that the first arc-shaped arm is separated from the main support plate can be reduced, so that the connection relationship between the first arc-shaped arm and the main support plate is more reliable. At least part of the end part of the second arc-shaped arm is positioned in the second avoidance hole, at this time, the second avoidance hole is designed to enable the second arc-shaped arm to have a larger radian, the matching radian of the second arc-shaped arm and the second arc-shaped space of the main supporting plate is larger, and the relative movement of the second arc-shaped arm and the main supporting plate is more stable. In addition, the risk that the second arc-shaped arm is separated from the main support plate can be reduced, so that the connection relationship between the second arc-shaped arm and the main support plate is more reliable. In some possible implementations, the first tab of the first arcuate arm is at least partially located in the first relief hole of the main support plate and the second tab of the second arcuate arm is at least partially located in the second relief hole of the main support plate. When the folding assembly is in an open state, as the first protruding block is at least partially positioned in the first avoiding hole, the first avoiding hole can be filled, and the second protruding block is at least partially positioned in the second avoiding hole, the second avoiding hole can be filled, so that the main supporting plate can provide a relatively complete supporting environment for the bending part of the screen, and the reliability of the screen is improved.

In some possible implementations, when the folding assembly is in the open state, the first bump occupies a majority of the space of the first relief hole, and the second bump occupies a majority of the space of the second relief hole, thereby providing a complete support environment.

In some possible implementations, the end face of the first bump may be flush with the support surface of the main support plate to achieve the splice, and the end face of the second bump may be flush with the support surface of the main support plate to achieve the splice, thereby providing a more complete and flat support environment.

In some possible implementation manners, the end face of the first bump is slightly concave relative to the supporting surface of the main supporting plate, so that the connection requirement of the first arc-shaped arm and the supporting requirement of the screen are considered, at this time, because the opening area of the first avoiding hole is smaller, and the concave degree of the end face of the first bump relative to the supporting surface of the main supporting plate is shallower, when the area of the bending part of the screen corresponding to the first avoiding hole is pressed or bumped, the risk of obvious sinking or damage is smaller, and the reliability of the screen is higher.

The terminal surface of second lug is concave slightly relative the holding surface of main supporting plate to compromise the connection demand of second arc arm and the support demand of screen, at this moment, because the opening area of hole is dodged to the second is less, and the terminal surface of second lug is shallower relative the holding surface of main supporting plate, therefore the region that the portion of bending of screen corresponds to the hole is dodged to the second receives when pressing or collide, takes place obvious sunken or damage the risk less, and the reliability of screen is higher.

In some possible implementation manners, through structural design or dimensional design and the like, the matching radian of the first arc-shaped arm and the second arc-shaped arm and the main support plate is enough, at this time, the main support plate is not provided with the first avoiding hole and the second avoiding hole, the integrity of the main support plate is higher, and the bending part of the screen can be better supported.

In some possible implementations, the first end of the first connecting arm and/or the first end of the second connecting arm are rotatably connected to the main shaft through a connection manner of a physical shaft, and the second end of the first connecting arm and/or the second end of the second connecting arm are rotatably connected to the first fixing frame and the second fixing frame through a connection manner of a virtual shaft.

In some possible implementations, the first mount has a first mating slot with a mating wall. The connecting section of the first connecting arm includes a first mating block including a mating face facing the second end of the first connecting arm. The first fitting block is mounted in the first fitting groove, and the fitting surface of the first fitting block contacts the fitting wall surface of the first fitting groove. The contact structure of the matching surface and the matching wall surface increases the contact area of the matching block and the fixing frame, so that the connection stability of the connecting arm and the fixing frame is increased, and the reliability of the folding assembly is improved.

In some possible implementations, the mating surface of the first mating block and/or the mating wall of the first mating groove are cambered surfaces, and the mating surface of the first mating block and the mating wall of the first mating groove form a cambered surface lap joint. The cambered surface overlap joint structure increases the connection stability of the connecting arm and the fixing frame in the movement process of the folding assembly, so that the relative movement of the connecting arm and the fixing frame is more stable, and the reliability of the folding assembly is improved.

In some possible implementations, the main support plate includes a first support block and a second support block, and the first support block and the second support block are respectively convexly disposed at two sides of the main support plate. When the electronic equipment is in an open state, the first supporting plate is overlapped with the first supporting block, and the second supporting plate is overlapped with the second supporting block. When the folding assembly is in an open state, the first supporting block of the main supporting plate can provide rigid support for the first supporting plate, and the second supporting block can provide rigid support for the second supporting plate, so that the local rigidity of the first supporting plate and the second supporting plate can be improved through the lap joint design, the pressing virtual positions of the first supporting plate and the second supporting plate are reduced, and the reliability of a screen is improved.

In some possible implementations, the first support plate has a first overlap surface overlapping the support surface of the first support block, and an inclined plane is formed between the first overlap surface of the first support plate and the support surface of the first support block, which is favorable for improving the overlap area, so that the first support block supports the first support plate more stably. The second backup pad has the first overlap joint face of overlap joint second supporting shoe's holding surface, forms the inclined plane cooperation between the holding surface of first overlap joint face and second supporting shoe of second backup pad, is favorable to improving overlap joint area for the second supporting shoe is more stable to the support of second supporting plate.

In some possible implementations, the spindle further includes a cover body fixed to a side of the main support plate facing away from the support surface of the main support plate, and the cover body further includes a third support block and a fourth support block, where the third support block and the fourth support block are respectively convexly disposed on two sides of the cover body. When the electronic equipment is in an open state, the first support plate is overlapped with the third support block, and the second support plate is overlapped with the fourth support block. The overlap joint structure makes the supporting shoe comparatively stable to the support of backup pad, increases folding assembly's reliability.

In some possible implementation manners, the first support plate is provided with a third overlapping surface overlapping the plurality of third support blocks of the cover body, and an inclined plane is formed between the third overlapping surface of the first support plate and the plurality of third support blocks of the cover body, so that the overlapping area is improved, the support of the plurality of third support blocks of the cover body to the first support plate is more stable, and the relative movement of the first support plate and the plurality of third support blocks of the cover body is not easy to interfere and is smoother. The second backup pad has the third overlap joint face of a plurality of fourth supporting shoes of overlap joint cover body, forms the inclined plane cooperation between the third overlap joint face of second backup pad and a plurality of fourth supporting shoes of cover body, is favorable to improving overlap joint area for a plurality of fourth supporting shoes of cover body are more stable to the support of second supporting plate, can also make the relative motion of a plurality of fourth supporting shoes of second backup pad and cover body be difficult for interfering, more smooth and easy.

In some possible implementations, the third supporting block protrudes in a direction approaching the main supporting plate, and the third supporting block is arranged in a staggered manner with respect to the first supporting block. Because the third supporting block is protruding to the direction that is close to the main tributary fagging, the third supporting block is arranged with first supporting block dislocation, and the third supporting block is close to with the holding surface of first supporting block, consequently third supporting block and first supporting block can support first backup pad better simultaneously to the structural requirement to first backup pad is lower, and bearing structure easily realizes.

In some possible implementation manners, the first support plate is provided with a third overlapping surface overlapping the plurality of third support blocks of the cover body, and an inclined plane is formed between the third overlapping surface of the first support plate and the plurality of third support blocks of the cover body, so that the overlapping area is improved, the support of the plurality of third support blocks of the cover body to the first support plate is more stable, and the relative movement of the first support plate and the plurality of third support blocks of the cover body is not easy to interfere and is smoother.

In some possible implementations, when the electronic device is in the open state, the first support plate overlaps the first swing arm and the second support plate overlaps the second swing arm. Because the first swing arm can provide rigid support for the first backup pad, the second swing arm can provide rigid support for the second backup pad, consequently can improve the local rigidity of first backup pad and second backup pad through overlap joint design, reduce the virtual position of pressing of first backup pad and second backup pad to promote the reliability of screen.

In some possible implementation manners, the first supporting plate is provided with a second overlapping surface overlapping the first swinging arm, and an inclined plane is formed between the second overlapping surface of the first supporting plate and the first swinging arm to match, so that the overlapping area is improved, the first swinging arm is more stable to the support of the first supporting plate, and the relative movement of the first supporting plate and the first swinging arm is not easy to interfere and is smoother. The second supporting plate is provided with a second overlap joint surface for overlapping the second swing arm, and an inclined plane is formed between the second overlap joint surface of the second supporting plate and the second swing arm, so that the overlap joint area is improved, the second swing arm is more stable to the support of the second supporting plate, and the relative movement of the second supporting plate and the second swing arm is not easy to interfere and smooth.

In some possible implementations, when the electronic device is in the closed state, the first support plate overlaps the first mount, the first swing arm, or the first connection arm, and the second support plate overlaps the second mount, the second swing arm, or the second connection arm. At this moment, the swing arm, the fixing frame and the connecting arm of the connecting assembly can provide rigid support for the support plate, so that the relative positions of the first support plate and the second support plate are stable, and a stable support environment is provided for the bending part of the screen. The first backup pad and the second backup pad can cooperate, form the better accommodation space of stability with the main shaft, and the water droplet form of the portion of bending of easier maintaining screen is favorable to improving the reliability of screen.

In a second aspect, the present application provides a folding assembly for use with an electronic device. The folding assembly is used for supporting a bending part of a screen of the electronic equipment, and has an open state and a closed state.

In some possible implementations, the first end of the first connecting arm is rotatably connected to the main shaft by means of a connection of a physical shaft; and/or the first end of the second connecting arm is rotationally connected with the main shaft in a connection mode of the solid shaft; and/or the second end of the first connecting arm is rotationally connected with the first fixing frame in a connection mode of the virtual shaft; and/or the second end of the second connecting arm is rotationally connected with the second fixing frame in a connection mode of the virtual shaft.

In a third aspect, the present application provides a housing arrangement. The shell device comprises a first shell, a second shell and the folding assembly, wherein the first fixing frame of the folding assembly is fixedly connected with the first shell, the second fixing frame of the folding assembly is fixedly connected with the second shell, and the first shell and the second shell can be unfolded or folded relatively through movement of the folding assembly. The shell device can provide a complete supporting environment, so that the risk of damage to the supported components is small when the components are pressed or collided, and the reliability of the supported components is improved.

Drawings

Fig. 1 is a schematic structural diagram of an electronic device in an open state according to an embodiment of the present application;

FIG. 2 is a schematic diagram of the electronic device shown in FIG. 1 in an intermediate state;

FIG. 3 is a schematic view of the electronic device of FIG. 1 in a closed state;

FIG. 4 is a partially exploded view of the electronic device of FIG. 1;

FIG. 5 is a partially exploded schematic view of the housing apparatus shown in FIG. 4;

FIG. 6 is a partially exploded view of the folding assembly of FIG. 5;

FIG. 7 is a partially exploded view of the spindle and plurality of connection assemblies shown in FIG. 6;

FIG. 8 is a schematic view of a portion of the spindle shown in FIG. 6;

FIG. 9 isbase:Sub>A schematic cross-sectional view of the spindle of FIG. 8 taken along line A-A;

FIG. 10 is a schematic cross-sectional view of the spindle of FIG. 8 taken along line B-B;

FIG. 11 is a schematic view of the top connection assembly of FIG. 7;

FIG. 12 is a partially exploded view of the top connector assembly of FIG. 11;

FIG. 13 is a schematic view of the first connecting arm of FIG. 12;

FIG. 14 is a schematic view of the structure of the second connecting arm shown in FIG. 12;

FIG. 15 is a schematic view of the first swing arm of FIG. 13;

FIG. 16 is a schematic view of the structure of the second swing arm of FIG. 12;

FIG. 17A is a schematic view of the damping assembly of FIG. 12;

FIG. 17B is an exploded view of the damping assembly of FIG. 17A;

FIG. 18 is a schematic view of a portion of the structure of the top connection assembly of FIG. 11;

FIG. 19 is a schematic view of the first mount shown in FIG. 12;

FIG. 20 is a schematic view of the first mount of FIG. 19 at another angle;

FIG. 21 is a schematic view of the second mount shown in FIG. 12;

FIG. 22 is a schematic view of the second mount of FIG. 12 at another angle;

FIG. 23 is a schematic view of an assembled configuration of the top connection assembly of FIG. 11 with the top housing of the spindle;

FIG. 24 is a schematic view of an assembled configuration of the top connection assembly and spindle of FIG. 11;

FIG. 25 is a schematic cross-sectional view of the structure of FIG. 24 taken along line C-C;

FIG. 26 is a schematic cross-sectional view of the structure of FIG. 24 taken along line D-D;

FIG. 27 is a schematic view of the structure of FIG. 25 in a closed position;

FIG. 28 is a schematic view of the structure of FIG. 26 in a closed position;

FIG. 29 is a schematic cross-sectional view of the structure of FIG. 24 taken along E-E;

FIG. 30 is a schematic cross-sectional view of the structure of FIG. 24 taken along line F-F;

FIG. 31 is a schematic view of the structure of FIG. 30 in a closed position;

FIG. 32 is a schematic view of the first and second support plates of FIG. 6 at another angle;

FIG. 33 is a schematic cross-sectional view of the folding assembly of FIG. 5 taken along G-G;

FIG. 34 is a schematic view of the structure of FIG. 33 in a closed position;

FIG. 35 is a schematic cross-sectional view of the folding assembly of FIG. 5 taken along H-H;

FIG. 36 is a schematic view of the structure of FIG. 35 in a closed position;

FIG. 37 is a schematic cross-sectional view of the folding assembly of FIG. 5 taken along line I-I;

FIG. 38 is a schematic cross-sectional view of the electronic device of FIG. 3 taken along J-J;

FIG. 39 is a schematic cross-sectional view of the electronic device of FIG. 3 taken along line K-K;

fig. 40 is a schematic cross-sectional structure of the electronic device shown in fig. 3 taken along L-L.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

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, "connected" may be either detachably connected or non-detachably connected; may be directly connected or indirectly connected through an intermediate medium. Wherein, "fixedly connected" means that the relative positional relationship is unchanged after being connected with each other. It will be appreciated that when part a is fixedly connected to part C by part B, a change in the relative positional relationship due to deformation of parts a, B and C themselves is permitted. "rotationally coupled" means coupled to each other and capable of relative rotation after coupling. "slidingly coupled" means coupled to each other and capable of sliding relative to each other after being coupled. Wherein, the two parts are integrally formed to form an integrated structure, which means that in the process of forming one of the two parts, the one part is connected with the other part, and the two parts are not required to be connected together by a reworking (such as bonding, welding, buckling connection and screw connection) mode.

References to directional terms in the embodiments of the present application, such as "upper", "lower", "side", "top", "bottom", etc., are merely with reference to the directions of the drawings, and thus, the directional terms are used in order to better and more clearly describe and understand the embodiments of the present application, rather than to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present application.

The term "plurality" means at least two. The term "and/or" is an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, which may represent: a exists alone, A and B exist together, and B exists alone. The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as implying or implying 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.

The application provides an electronic device, which is of a foldable structure and has an open state and a closed state. The electronic device comprises a screen and a housing arrangement for carrying the screen. The shell device comprises a first shell, a second shell and a folding assembly for connecting the first shell and the second shell, wherein the first shell and the second shell can be relatively unfolded to an open state or relatively folded to a closed state through the movement of the folding assembly, and the screen is unfolded or folded along with the shell device. The electronic device is a screen-folded device.

The folding component is provided with a main shaft, two supporting plates and a plurality of moving parts, wherein the two supporting plates are positioned on two sides of the main shaft, and the ends of the main shaft, the two supporting plates and the plurality of moving parts are spliced when the electronic equipment is in an open state, so that a smooth, continuous, small-hole-breaking or hole-breaking-free supporting environment is provided, the folding component can reliably support the bending part of the screen, the risk that the bending part of the screen is sunken under the pressing or impacting is reduced, and the reliability of the screen is improved.

In addition, when the electronic equipment is in an open state, the main shaft and/or the plurality of moving parts can also provide structural support for the supporting plate, so that the supporting plate is small in pressing deficiency and deformation, and the reliability of the screen is further improved.

The electronic device may be a foldable electronic product such as a mobile phone, a tablet computer, a notebook computer, a wearable device, and the like. In the embodiment of the application, the electronic device is a mobile phone as an example.

Referring to fig. 1, fig. 2 and fig. 3 in combination, fig. 1 is a schematic structural diagram of an electronic device 200 in an open state, fig. 2 is a schematic structural diagram of the electronic device 200 in an intermediate state shown in fig. 1, and fig. 3 is a schematic structural diagram of the electronic device 200 in a closed state shown in fig. 1 according to an embodiment of the present disclosure. In some embodiments, the electronic device 200 is a foldable device having an open state and a closed state. The electronic apparatus 200 includes a housing device 1 and a screen 2, the screen 2 being mounted to the housing device 1. As shown in fig. 1, the housing device 1 can be unfolded to an open state; as shown in fig. 3, the housing device 1 can also be folded into a closed state; as shown in fig. 2, the housing device 1 may also be unfolded or folded to an intermediate state, which may be any state between an open state and a closed state. The screen 2 is of a bendable structure, the screen 2 moves along with the housing device 1, and the housing device 1 can drive the screen 2 to be unfolded or folded, so that the electronic device 200 can be unfolded or folded to an open state, a closed state or an intermediate state. When the electronic device 200 is in the closed state, the screen 2 is located inside the housing device 1, and the electronic device 200 is a screen folding device.

In this embodiment, when the electronic device 200 is in the open state, the screen 2 is flattened, and the screen 2 can be displayed in full screen, so that the electronic device 200 has a larger display area, so as to improve the viewing experience and the operation experience of the user. When the electronic device 200 is in the closed state, the electronic device 200 has a small planar size, and is convenient for a user to carry and store.

In some embodiments, the electronic device 200 may further include a plurality of components (not shown in the drawings), and the plurality of components are mounted inside the housing apparatus 1. The plurality of components may include, for example, a processor, an internal memory, an external memory interface, a universal serial bus (universal serial bus, USB) interface, a charge management module, a power management module, a battery, an antenna, a communication module, a camera, an audio module, a speaker, a receiver, a microphone, an earphone interface, a sensor module, keys, a motor, an indicator, and a subscriber identity module (subscriber identification module, SIM) card interface, etc. Wherein the electronic device 200 may have more or fewer components than described above, may combine two or more components, or may have a different configuration of components. The various components may be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.

It can be appreciated that when the user holds the electronic device 200, the position of the earpiece module of the electronic device 200 may be defined as the upper side of the electronic device 200, the position of the microphone module of the electronic device 200 may be defined as the lower side of the electronic device 200, and the two sides of the electronic device 200 held by the left and right hands of the user may be defined as the left and right sides of the electronic device 200. In some embodiments, the electronic device 200 is capable of side-to-side folding. In other embodiments, the electronic device 200 can be folded in half up and down.

Referring to fig. 1 to 5 in combination, fig. 4 is a partially exploded view of the electronic device 200 shown in fig. 1, and fig. 5 is a partially exploded view of the housing device 1 shown in fig. 4.

In some embodiments, the housing apparatus 1 includes a first housing 11, a second housing 13, and a folding assembly 12. Wherein the folding assembly 12 may be connected between the first housing 11 and the second housing 13. The folding assembly 12 is movable to enable the first housing 11 and the second housing 13 to be relatively unfolded to an open state or relatively folded to a closed state, and to be relatively unfolded or relatively folded to an intermediate state. It should be understood that when the electronic apparatus 200 is in the open state, the screen 2, the housing device 1, and the respective components of the housing device 1 are correspondingly in the open state; when the electronic apparatus 200 is in the closed state, the screen 2, the housing device 1, and the respective components of the housing device 1 are correspondingly in the closed state; when the electronic apparatus 200 is in the intermediate state, the screen 2, the housing device 1, and the respective components of the housing device 1 are correspondingly in the intermediate state.

When the electronic device 200 is in the open state as shown in fig. 1, the included angle between the first housing 11 and the second housing 13 may be approximately 180 °, the first housing 11 and the second housing 13 are flattened, and the screen 2 is in a flattened form, at this time, the first housing 11 may be spliced with the second housing 13, and the splicing between the first housing 11 and the second housing 13 includes the situation that the two abut against each other, or may include the situation that there is a small gap between the two. In this embodiment, by splicing the first housing 11 and the second housing 13, the housing device 1 can be stopped in the unfolding operation, so as to prevent the housing device 1 from being folded excessively during unfolding, thereby reducing the stress of the screen 2 and improving the reliability of the screen 2 and the electronic device 200.

In other embodiments, the angle between the first housing 11 and the second housing 13 may be slightly different from 180 ° when the electronic device 200 is in the open state, for example 165 °, 177 °, 185 °, or the like, which also considers that the first housing 11 and the second housing 13 are flattened. The angle between the first housing 11 and the second housing 13 is defined as the angle between the upper side of the first housing 11 and the upper side of the second housing 13.

As shown in fig. 3, when the electronic device 200 is in the closed state, the included angle between the first housing 11 and the second housing 13 may be approximately 0 °, the first housing 11 and the second housing 13 are folded to the closed state, and the screen 2 is in the folded state. For example, when the first housing 11 and the second housing 13 are in a closed state, they may contact each other to achieve positioning. In other embodiments, when the first housing 11 and the second housing 13 are in the closed state, they may be close to each other, and a small gap exists between them, which is not strictly limited in this application. When the first housing 11 and the second housing 13 have a minute gap, some foreign matters (such as nails, clips, glass residues, etc.) outside the electronic device 200 do not enter between the first housing 11 and the second housing 13 through the gap, so as to prevent the screen 2 from being damaged by the foreign matters, thereby improving the reliability of the electronic device 200.

It will be appreciated that the first housing 11 and the second housing 13 are housing members for mounting and fixing other components of the electronic device 200, and have various structures, and the embodiments of the present application only briefly illustrate part of the structures of the first housing 11 and the second housing 13, and are also simplified in the drawings, and the embodiments of the present application do not strictly limit the specific structures of the first housing 11 and the second housing 13.

In some embodiments, referring to fig. 1 and fig. 4 in combination, the screen 2 includes a first non-bending portion 21, a bending portion 22, and a second non-bending portion 23 that are sequentially arranged. The first non-bending part 21 is fixedly connected with the first shell 11, the second non-bending part 23 is fixedly connected with the second shell 13, the bending part 22 is arranged corresponding to the folding assembly 12, and the bending part 22 deforms in the process of relatively folding or relatively unfolding the first shell 11 and the second shell 13. In the process of relatively folding or relatively unfolding the first shell 11 and the second shell 13, the first shell 11 drives the first non-bending portion 21 to move, and the second shell 13 drives the second non-bending portion 23 to move, so that the first non-bending portion 21 and the second non-bending portion 23 are relatively folded or unfolded.

In some embodiments, referring to fig. 4, the first housing 11 includes a support surface 111 for carrying the screen 2, and the second housing 13 includes a support surface 131 for carrying the screen 2. For example, the first non-bent portion 21 of the screen 2 may be fixedly connected to the support surface 111 of the first housing 11. For example, the first non-bent portion 21 may be adhered to the support surface 111 of the first housing 11 by an adhesive layer. The second non-bending portion 23 is fixedly connected to the supporting surface 131 of the second housing 13. For example, the second non-bending portion 23 may be adhered to the supporting surface 131 of the second housing 13 by an adhesive layer.

In this embodiment, since the first non-bending portion 21 is fixedly connected to the first housing 11 and the second non-bending portion 23 is fixedly connected to the second housing 13, when the first housing 11 and the second housing 13 are folded or unfolded relatively, the operation of folding and unfolding relatively between the first non-bending portion 21 and the second non-bending portion 23 can be accurately controlled, so that the deformation process and the movement form of the screen 2 are controllable, and the reliability is high.

As shown in fig. 1, when the first case 11 and the second case 13 are relatively unfolded to an open state, the first non-bent portion 21, the bent portion 22, and the second non-bent portion 23 of the screen 2 are relatively flattened, and the screen 2 is in a flattened state. As shown in fig. 2, when the first housing 11 and the second housing 13 are in the intermediate state, an included angle is formed between the first non-bending portion 21 and the second non-bending portion 23 of the screen 2, the bending portion 22 is partially bent, and the screen 2 is in a bent state. As shown in fig. 3, when the first housing 11 and the second housing 13 are folded to a closed state, the screen 2 is positioned inside the folding device and is in a folded state. The details of the folded configuration of the screen 2 will be described later.

Wherein, screen 2 can include display module assembly and backup pad, and display module assembly is flexible display screen, and the backup pad is located display module assembly's below for support display module assembly, increase display module assembly's structural rigidity. The rigidity of the portion of the support plate located at the bending portion 22 is smaller than the rigidity of the portions located at the first non-bending portion 21 and the second non-bending portion 23, that is, the rigidity of the portion of the support plate located at the bending portion 22 is smaller, the rigidity of the portion of the support plate located at the first non-bending portion 21 and the second non-bending portion 23 is larger, so that the structural rigidity of the screen 2 can be considered, the flatness is higher, and meanwhile, the bending portion 22 of the screen 2 can be bent smoothly.

It is understood that the supporting surface 111 of the first housing 11 and the supporting surface 131 of the second housing 13 may be continuous and complete surfaces, or may be surfaces including a plurality of recessed areas or hollowed-out areas, which are not strictly limited in the embodiment of the present application.

Wherein, the display module can integrate display function and touch sensing function. The display function of the screen 2 is used for displaying images, videos, etc., and the touch sensing function of the screen 2 is used for sensing touch actions of a user to realize man-machine interaction. The display module may be a liquid crystal display (liquid crystal display, LCD), an organic light-emitting diode (OLED) display, an active-matrix organic light-emitting diode (AMOLED) display, a flexible light-emitting diode (flex) display, a MiniLED display, a Micro led display, a Micro-OLED display, a quantum dot light-emitting diode (quantum dot light emitting diodes, QLED) display, or the like.

The following illustrates the implementation of the folding assembly 12.

Referring to fig. 5 to 7 in combination, fig. 6 is a partially exploded view of the folding assembly 12 shown in fig. 5, and fig. 7 is a partially exploded view of the main shaft 31 and the plurality of connection assemblies (32, 33, 34) shown in fig. 6.

In some embodiments, the folding assembly 12 includes a main shaft 31, a plurality of connection assemblies (32, 33, 34), a first support plate 35, a second support plate 36, and a back cover 37.

Illustratively, a plurality of connection assemblies (32, 33, 34) are each connected to the main shaft 31, and the plurality of connection assemblies (32, 33, 34) are each capable of movement while being unfolded or folded relative to the main shaft 31. The plurality of connecting components (32, 33, 34) are also connected between the first housing 11 and the second housing 13, and when the plurality of connecting components (32, 33, 34) move relative to the main shaft 31, the first housing 11 and the second housing 13 move relative to the main shaft 31 so as to be unfolded or folded relatively. By way of example, the plurality of connection assemblies (32, 33, 34) may include a top connection assembly 32, a middle connection assembly 33, and a bottom connection assembly 34. Wherein the top connection member 32, the middle connection member 33, and the bottom connection member 34 are arranged at intervals in the extending direction of the main shaft 31. The extending direction of the main shaft 31 is a direction from the top to the bottom.

In this embodiment, the movement of the first housing 11 and the second housing 13 when rotating relative to the spindle 31 is smoother and more reliable by the cooperative movement of the top connecting assembly 32, the middle connecting assembly 33 and the bottom connecting assembly 34.

The top connecting component 32 and the bottom connecting component 34 may have the same structure, a mirror symmetry structure, a center symmetry structure, or other different structures, and in this embodiment, the top connecting component 32 and the bottom connecting component 34 are illustrated as mirror symmetry structures, and the description of the top connecting component 32 will be mainly described below. The structure of the middle connection assembly 33 may be identical, partially identical, or completely different from that of the top connection assembly 32, which is not strictly limited in the embodiments of the present application. In other embodiments, the folding assembly 12 may be provided without the middle connecting assembly 33, or a plurality of middle connecting assemblies 33, which is not strictly limited in the embodiments of the present application.

Wherein the top connection assembly 32 may include a plurality of moving members and a plurality of fixed members. Wherein, during the movement of the top connection assembly 32, the fixing member is fixed relative to the mounting structure (e.g. the main shaft 31, the first housing 11 or the second housing 13) of the top connection assembly 32, and the moving member can move relative to the fixing member.

In some embodiments, the main shaft 31 includes a main support plate 41 and a plurality of covers (42, 43, 44), and the plurality of covers (42, 43, 44) may include a top cover 42, a middle cover 43, and a bottom cover 44. The top cover 42, the middle cover 43 and the bottom cover 44 are all positioned below the main support plate 41; the top cover 42 is fixed to the top of the main support plate 41 and forms a top space with the main support plate 41 for installing the top connection assembly 32; the middle cover 43 is fixed to the middle of the main support plate 41 and forms a middle space with the main support plate 41 for installing the middle connection assembly 33; the bottom cover 44 is fixed to the bottom of the main support plate 41 and forms a bottom space with the main support plate 41 for mounting the bottom connection assembly 34. In the present embodiment, the number, structure, position, etc. of the plurality of cover bodies (42, 43, 44) are provided corresponding to the plurality of connection members (32, 33, 34).

Illustratively, the first support plate 35 is located on a side of the main support plate 41 of the spindle 31 facing the first housing 11, and the second support plate 36 is located on a side of the main support plate 41 of the spindle 31 facing the second housing 13. The first and

second support plates

35 and 36 connect the top, middle and

bottom connection assemblies

32, 33 and 34 to move with the top, middle and

bottom connection assemblies

32, 33 and 34 during movement of the folding assembly 12. The first support plate 35, the main support plate 41 and the second support plate 36 can jointly support the bent portion 22 of the screen 2 to improve the reliability of the bent portion 22 of the screen 2.

Illustratively, the upper side of the main support plate 41 facing away from the plurality of cover bodies (42, 43, 44) forms a support surface 411. The support surface 411 of the main support plate 41 serves to support the screen. A plurality of covers (42, 43, 44) are fixed to the side of the main support plate 41 facing away from the support surface 411 of the main support plate 41. The first support plate 35 forms a support surface 351 facing away from the upper sides of the plurality of cover bodies (42, 43, 44). The second support plate 36 forms a support surface 361 facing away from the upper sides of the plurality of cover bodies (42, 43, 44). When the housing device 1 is in the open state, the supporting surface 411 of the main supporting plate 41 is spliced with the supporting surface 351 of the first supporting plate 35 and the supporting surface 361 of the second supporting plate 36, so as to provide a flat supporting environment for the bending portion 22 of the screen 2 together, thereby improving the reliability of the screen 2. It can be appreciated that in the embodiment of the present application, when two surfaces are spliced, a scheme of connecting the two surfaces may be included, or a scheme of having a small gap between the two surfaces, but exhibiting a splicing effect as a whole may be included.

Illustratively, the back cover 37 is positioned below the spindle 31 and fixedly coupled to the spindle 31. As shown in fig. 1, when the electronic device 200 is in the open state, the first housing 11 and the second housing 13 jointly cover the back cover 37, and the back cover 37 is hidden between the folding assembly 12 and the first housing 11 and the second housing 13. As shown in fig. 3, when the electronic device 200 is in the closed state, the back cover 37 is exposed relative to the first housing 11 and the second housing 13, the back cover 37 forms a part of an appearance of the electronic device 200, and the back cover 37 can cover the folding assembly 12, so as to improve the uniformity and the aesthetic property of the appearance of the electronic device 200, and also facilitate the user to hold the electronic device 200.

Referring to fig. 7 and 8 in combination, fig. 8 is a schematic view of a part of the spindle 31 shown in fig. 6.

In some embodiments, the main supporting plate 41 may be provided with multiple sets of avoidance spaces, where the multiple sets of avoidance spaces are respectively arranged at the top, the middle and the bottom of the main supporting plate 41 and are in one-to-one correspondence with the top connecting component 32, the middle connecting component 33 and the bottom connecting component 34, and are used for avoiding the moving parts of the multiple connecting components (32, 33 and 34) in the moving process of the folding component 12, so that the moving process of the folding component 12 is smooth and the reliability is high.

The single-group avoidance space may include a first avoidance hole 412, a second avoidance hole 413, a first avoidance gap 414, and a second avoidance gap 415, where the first avoidance hole 412, the second avoidance hole 413, the first avoidance gap 414, and the second avoidance gap 415 all penetrate through the main support plate 41, and form an opening on the support surface 411 of the main support plate 41. The first avoidance holes 412 and the first avoidance notches 414 are provided near one side of the main support plate 41, and the second avoidance holes 413 and the second avoidance notches 415 are provided near the other side of the main support plate 41. Wherein, the first avoidance gap 414 and the second avoidance gap 415 are positioned at two side edges of the main support plate 41, and the first avoidance hole 412 and the second avoidance hole 413 are positioned at the middle region of the main support plate 41.

The number of the first avoiding holes 412 may be one or more, for example, two in the illustrated embodiment, and the second avoiding holes 413 may be symmetrically disposed with the first avoiding holes 412. The number of the first avoidance notches 414 may be one or more, for example, one in the illustrated embodiment, and the second avoidance notches 415 may be symmetrically disposed with respect to the first avoidance notches 414.

Illustratively, the main support plate 41 further includes a plurality of first support blocks 416 and a plurality of second support blocks 417, the plurality of first support blocks 416 being convexly provided at one side of the main support plate 41, and the plurality of second support blocks 417 being convexly provided at the other side of the main support plate 41, i.e., the plurality of first support blocks 416 and the plurality of second support blocks 417 being convexly provided at both sides of the main support plate 41, respectively. Wherein the first plurality of support blocks 416 are located on the same side of the main support plate 41 as the first avoidance notches 414, and the second plurality of support blocks 417 are located on the same side of the main support plate 41 as the second avoidance notches 415.

Illustratively, the first support block 416 and the second support block 417 each have a support surface, the support surface 4161 of the first support block 416 and the support surface 4171 of the second support block 417 are oriented the same as the support surface 411 of the main support plate 41. The support surface 4161 of the first support block 416 and the support surface 4171 of the second support block 417 are submerged relative to the support surface 411 of the main support plate 41, i.e. the support surface 411 of the main support plate 41 is raised relative to the support surface 4161 of the first support block 416 and the support surface 4171 of the second support block 417.

Wherein the support surface 4161 of the first support block 416 may be disposed obliquely with respect to the support surface 411 of the main support plate 41, and the support surface 4171 of the second support block 417 may be disposed obliquely with respect to the support surface 411 of the main support plate 41. For example, the end portions of the support surface 4161 of the first support block 416 and the support surface 4171 of the second support block 417 that are away from each other are deflected in a direction away from the support surface 411 of the main support plate 41.

Illustratively, the primary support plate 41 further includes a plurality of first receiving slots 418 disposed inwardly of one side of the primary support plate 41 and a plurality of second receiving slots 419 disposed inwardly of the other side of the primary support plate 41. Wherein, the first receiving grooves 418 and the first avoiding notches 414 are located at the same side of the main supporting plate 41, and the second receiving grooves 419 and the second avoiding notches 415 are located at the same side of the main supporting plate 41.

Illustratively, as shown in FIG. 7, the top cover 42 may be generally a concave-in-center, two-sided, raised cover structure. The top cover 42 is provided with a plurality of mating structures towards the upper side of the main support plate 41 for mating with the main support plate 41 to form a head space for mounting the top connection assembly 32. The plurality of mating structures may include grooves, openings, protrusions, indentations, and the like.

As shown in fig. 7 and 8, the top cover 42 may further be provided with a plurality of third supporting blocks 421 and a plurality of fourth supporting blocks 422, wherein the third supporting blocks 421 are protruded on one side of the top cover 42, and the fourth supporting blocks 422 are protruded on the other side of the top cover 42, that is, the third supporting blocks 421 and the fourth supporting blocks 422 are protruded on both sides of the top cover 42.

The third support blocks 421 and the first support blocks 416 are located on the same side of the main shaft 31, and the third support blocks 421 protrude in a direction approaching the main support plate 41, at least partially extend into the first receiving grooves 418 of the main support plate 41, and are staggered with the first support blocks 416. The third supporting block 421 has a supporting surface, the supporting surface of the third supporting block 421 is oriented the same as the supporting surface 411 of the main supporting plate 41, and the supporting surface of the third supporting block 421 is sunk relative to the supporting surface 411 of the main supporting plate 41.

The fourth support blocks 422 and the second support blocks 417 are located on the same side of the main shaft 31, the fourth support blocks 422 protrude in a direction approaching the main support plate 41, at least partially extend into the second receiving grooves 419 of the main support plate 41, and are arranged offset from the second support blocks 417. The fourth support block 422 has a support surface, the support surface of the fourth support block 422 is oriented the same as the support surface 411 of the main support plate 41, and the support surface of the fourth support block 422 is submerged relative to the support surface 411 of the main support plate 41.

The structures of the middle cover 43 and the bottom cover 44 may be set with reference to the top cover 42, and the embodiments of the present application will not be repeated for the middle cover 43 and the bottom cover 44.

In some embodiments, as shown in fig. 7, the main shaft 31 may further include a plurality of sets of fasteners 311, the plurality of sets of fasteners 311 being in one-to-one correspondence with the plurality of covers (42, 43, 44) for securing the plurality of covers (42, 43, 44) to the main support plate 41. Wherein a single set of fasteners 311 may include one or more fasteners 311. Wherein, the fastening holes are arranged on the plurality of covers (42, 43, 44), the side of the main support plate 41 facing the plurality of covers (42, 43, 44) can also be provided with fastening holes, and the fastening piece 311 passes through the fastening holes of the plurality of covers (42, 43, 44) and stretches into the fastening holes of the main support plate 41 to lock the cover and the main support plate 41. The fastener 311 may be a screw, a bolt, a rivet, or the like.

Referring to fig. 8 and 9 in combination, fig. 9 isbase:Sub>A schematic cross-sectional view of the spindle 31 shown in fig. 8 taken alongbase:Sub>A-base:Sub>A. Wherein the section taken atbase:Sub>A-base:Sub>A passes through the main support plate 41 and the top cover 42.

Illustratively, the main shaft has a movable space, for example, a movable space 41a is formed between the main support plate 41 and the top cover 42, and both ends of the movable space 41a are respectively connected to spaces on both sides of the main shaft 31. The movable space 41a is communicated with the first avoiding notch 414 and the second avoiding notch 415 of the main supporting plate 41, so as to be communicated with the space outside the main shaft 31 through the first avoiding notch 414 and the second avoiding notch 415. The movable space 41a is another part of the head space of the main shaft 31 for mounting a part of the structure of the head coupling assembly 32.

Referring to fig. 8 and 10 in combination, fig. 10 is a schematic cross-sectional view of the spindle 31 shown in fig. 8 taken along B-B. Wherein the section taken at B-B passes through the main support plate 41 and the top cover 42.

Illustratively, a first arcuate space 41b and a second arcuate space 41c are formed between the main support plate 41 and the top cover 42. Wherein the first arc-shaped space 41b is provided near one side of the main shaft 31. One end of the first arc-shaped space 41b is communicated with the first avoidance hole 412, and the other end of the first arc-shaped space 41b is communicated with a space outside the main shaft 31. The other end of the first arc-shaped space 41b may also be connected to a space outside the spindle 31 through a partial fitting structure of the top cover 42. The second arc-shaped space 41c is provided near the other side of the main shaft 31. One end of the second arc-shaped space 41c is communicated with the second avoidance hole 413, and the other end of the second arc-shaped space 41c is communicated to a space outside the main shaft 31. The other end of the second arc-shaped space 41c may also be connected to a space outside the spindle 31 through another part of the mating structure of the top cover 42. The first and second

arcuate spaces

41b and 41c are part of the head space of the spindle 31 for mounting another part of the structure of the head-coupling assembly 32.

Referring to fig. 11 and 12 in combination, fig. 11 is a schematic structural view of the top connection assembly 32 shown in fig. 7, and fig. 12 is a schematic partially exploded structural view of the top connection assembly 32 shown in fig. 11.

In some embodiments, the top connection assembly 32 includes a first mount 321, a second mount 322, a first connection arm 323, a second connection arm 324, a first swing arm 325, a second swing arm 326, and a damping assembly 327. The top connection assembly 32 may further include a plurality of shafts (3281, 3282, 3283, 3284), and the plurality of shafts (3281, 3282, 3283, 3284) may be used to plug other components of the top connection assembly 32 to achieve the connection. Wherein, top connection assembly 32 may further include a first stop 3291 and a second stop 3292.

Referring to fig. 13, fig. 13 is a schematic structural diagram of the first connecting arm 323 shown in fig. 12.

In some embodiments, the first connecting arm 323 includes a first end 3231 and a second end 3232, and the first end 3231 and the second end 3232 may be both rotational ends. Illustratively, the first end 3231 of the first connecting arm 323 can include a first arcuate arm 3233. The first end 3231 of the first connecting arm 323 may include one or more first arc-shaped arms 3233, for example, in the illustrated embodiment, the number of first arc-shaped arms 3233 is two, and the two first arc-shaped arms 3233 are respectively located at two sides of the first end 3231 of the first connecting arm 323.

The first arc arm 3233 includes a first protrusion 3233a, and the first protrusion 3233a is located at an end of the first arc arm 3233 remote from the second end 3232 of the first connection arm 323. Wherein the first end 3231 of the first connecting arm 323 has an end face 3231a remote from the second end 3232 of the first connecting arm 323, and the first protrusion 3233a protrudes relative to the end face 3231a of the first end 3231 of the first connecting arm 323.

Illustratively, the second end 3232 of the first connecting arm 323 may be provided with a spindle bore 3234.

Illustratively, the first connecting arm 323 further includes a connecting section 3235 connected between the first end 3231 and the second end 3232. The arrangement of the connecting section 3235 makes the structural design of the first connecting arm 323 more flexible, and can better meet the connection requirement and the shape requirement. Wherein, the connection section 3235 of the first connection arm 323 may include a first fitting block 3235a, and the first fitting block 3235a may be formed at a side of the connection section 3235 and protrude outward. Wherein the number of first mating blocks 3235a may be one or more, for example, in the illustrated embodiment, the number of first mating blocks 3235a is two. The first mating block 3235a includes a mating surface 3235b facing the second end 3232 of the first connecting arm 323, and the mating surface 3235b may be an arc surface. The first coupling block 3235a is provided so that the first coupling arm 323 can be better coupled with certain structures, increasing stability of the coupling relationship.

The first connecting arm 323 may be an integrally formed structural member, so as to have a high structural strength. Illustratively, the first connecting arm 323 may be formed by a computer numerical control (computer numerical control, CNC) milling process. In other embodiments, the first connecting arm 323 may also be formed by a metal injection molding process, which is not strictly limited in the embodiments of the present application.

Referring to fig. 14, fig. 14 is a schematic structural diagram of the second connecting arm 324 shown in fig. 12.

In some embodiments, the second connecting arm 324 includes a first end 3241 and a second end 3242, and the first end 3241 and the second end 3242 may each be a rotating end. Illustratively, the first end 3241 of the second connecting arm 324 can include a second arcuate arm 3243. The first end 3241 of the second connecting arm 324 may include one or more second arc-shaped arms 3243, for example, in the illustrated embodiment, two second arc-shaped arms 3243 are provided, and the two second arc-shaped arms 3243 are respectively located at two sides of the first end 3241 of the second connecting arm 324.

The second arc arm 3243 includes a second protrusion 3243a, and the second protrusion 3243a is located at an end of the second arc arm 3243 remote from the second end 3242 of the second connection arm 324. Wherein the first end 3241 of the second connecting arm 324 has an end face 3241a remote from the second end 3242 of the second connecting arm 324, and the second protrusion 3243a is protruding with respect to the end face 3241a of the first end 3241 of the second connecting arm 324.

Illustratively, the second end 3242 of the second connecting arm 324 can be provided with a pivot hole 3244.

Illustratively, the second connecting arm 324 further includes a connecting segment 3245 connected between the first end 3241 and the second end 3242. The arrangement of the connecting section 3245 makes the structural design of the second connecting arm 324 more flexible, and can better meet the connection requirement and the shape requirement.

Wherein, the connection section 3245 of the second connection arm 324 may include a second fitting block 3245a, and the second fitting block 3245a may be formed at a side of the connection section 3245 and protrude outward. Wherein the number of the second fitting blocks 3245a may be one or more. The second mating block 3245a includes a mating surface 3245b facing the second end 3242 of the second connecting arm 324, and the mating surface 3245b may be an arc surface. The provision of the second fitting block 3245a allows the second connecting arm 324 to be better fitted with certain structures, increasing the stability of the connection relationship.

The second connecting arm 324 may be an integrally formed structural member, so as to have a high structural strength. The second connecting arm 324 may be formed by a computer numerical control (computer numerical control, CNC) milling process, for example. In other embodiments, the second connecting arm 324 may also be formed using a metal injection molding process, which is not strictly limited in the embodiments of the present application.

In some embodiments, the first connecting arm 323 may be the same shape and material as the second connecting arm 324, so as to use the same material, save the material types of the folding assembly 12, and reduce the cost of the folding assembly 12. In other embodiments, the shape and/or material of the first connecting arm 323 may be different from the second connecting arm 324, which is not strictly limited in the embodiments of the present application.

Referring to fig. 15, fig. 15 is a schematic structural diagram of the first swing arm 325 shown in fig. 13.

In some embodiments, the first swing arm 325 includes a rotating end 3251 and a sliding end 3252. The rotating end 3251 of the first swing arm 325 is provided with a rotating shaft hole 3251a, and the rotating shaft hole 3251a penetrates the rotating end 3251 of the first swing arm 325. The rotating end 3251 of the first swing arm 325 may further include a plurality of engagement teeth 3251b, a plurality of first protrusions 3251c, and a plurality of second protrusions 3251d; the plurality of engagement teeth 3251b may be located in a middle portion of the rotational end 3251 of the first swing arm 325 and on a side facing away from the sliding end 3252 of the first swing arm 325; the plurality of first protrusions 3251c and the plurality of second protrusions 3251d are disposed opposite to each other at both sides of the rotation end 3251 of the first swing arm 325, the plurality of first protrusions 3251c are arranged in a ring shape and spaced apart from each other, the plurality of first protrusions 3251c are disposed around the rotation shaft hole 3251a of the rotation end 3251 of the first swing arm 325, the plurality of second protrusions 3251d are arranged in a ring shape and spaced apart from each other, and the plurality of second protrusions 3251d are disposed around the rotation shaft hole 3251a of the rotation end 3251 of the first swing arm 325.

The rotating end 3251 of the first swing arm 325 may further include a first splicing block 3251e, the first splicing block 3251e may be located at a middle portion of the rotating end 3251 of the first swing arm 325 and adjacent to the plurality of engagement teeth 3251b, and the first splicing block 3251e may be located at a side of the plurality of engagement teeth 3251b near the sliding end 3252 of the first swing arm 325.

Illustratively, the sliding end 3252 of the first swing arm 325 is provided with a first insertion shaft hole 3252a and a first avoidance region 3252b, the first avoidance region 3252b extending through the sliding end 3252 of the first swing arm 325, the first avoidance region 3252b separating the first insertion shaft hole 3252a into two portions.

Illustratively, the first swing arm 325 further includes a connecting segment 3253 connected between the rotating end 3251 and the sliding end 3252. Illustratively, the connecting section 3253 of the first swing arm 325 may be bent with respect to the sliding end 3252 of the first swing arm 325, so that the structural design of the first swing arm 325 is more flexible and the connection requirements and shape requirements of the top connection assembly 32 and the folding assembly 12 may be better met.

Illustratively, the connecting section 3253 of the first swing arm 325 may include two first reinforcing blocks 3253a, the two first reinforcing blocks 3253a being respectively located at both sides of the connecting section 3253 of the first swing arm 325, the two first reinforcing blocks 3253a being capable of increasing the structural strength of the first swing arm 325.

The first swing arm 325 may be an integrally formed structural member, so as to have a high structural strength. By way of example, the first swing arm 325 may be formed by a metal injection molding process, or by other processes, as embodiments of the present application are not strictly limited thereto.

Referring to fig. 16, fig. 16 is a schematic structural diagram of the second swing arm 326 shown in fig. 12.

In some embodiments, the second swing arm 326 includes a rotating end 3261 and a sliding end 3262. The rotation end 3261 of the second swing arm 326 is provided with a rotation shaft hole 3261a, and the rotation shaft hole 3261a penetrates the rotation end 3261 of the second swing arm 326. The rotating end 3261 of the second swing arm 326 may further include a plurality of engagement teeth 3261b, a plurality of first protrusions 3261c, and a plurality of second protrusions 3261d; the plurality of engagement teeth 3261b may be located in the middle of the rotating end 3261 of the second swing arm 326 and on a side facing away from the sliding end 3262 of the second swing arm 326; the plurality of first protrusions 3261c and the plurality of second protrusions 3261d are disposed opposite to each other at both sides of the rotation end 3261 of the second swing arm 326, the plurality of first protrusions 3261c are arranged in a ring shape and spaced apart from each other, the plurality of first protrusions 3261c are disposed around the rotation shaft hole 3261a of the rotation end 3261 of the second swing arm 326, the plurality of second protrusions 3261d are arranged in a ring shape and spaced apart from each other, and the plurality of second protrusions 3261d are disposed around the rotation shaft hole 3261a of the rotation end 3261 of the second swing arm 326.

The rotating end 3261 of the second swing arm 326 may further include a second splicing block 3261e, and the second splicing block 3261e may be located at a middle portion of the rotating end 3261 of the second swing arm 326 and adjacent to the plurality of engaging teeth 3261b, and the second splicing block 3261e may be located at a side of the plurality of engaging teeth 3261b near the sliding end 3262 of the second swing arm 326.

Illustratively, the sliding end 3262 of the second swing arm 326 is provided with a second insertion shaft hole 3262a and a second avoidance region 3262b, the second avoidance region 3262b penetrates the sliding end 3262 of the second swing arm 326, and the second avoidance region 3262b divides the second insertion shaft hole 3262a into two parts.

Illustratively, the second swing arm 326 further includes a connecting section 3263 connected between the rotating end 3261 and the sliding end 3262. Illustratively, the connecting section 3263 of the second swing arm 326 may be bent relative to the sliding end 3262 of the second swing arm 326, so that the structural design of the second swing arm 326 is more flexible, and the connection requirement and the shape requirement of the top connecting assembly 32 and the folding assembly 12 may be better satisfied.

Illustratively, the connecting section 3263 of the second swing arm 326 may include two second reinforcing blocks 3263a, the two second reinforcing blocks 3263a being respectively located at two sides of the connecting section 3263 of the second swing arm 326, and the two second reinforcing blocks 3263a being capable of increasing the structural strength of the second swing arm 326.

The second swing arm 326 may be an integrally formed structural member, so as to have a high structural strength. By way of example, the second swing arm 326 may be formed by a metal injection molding process, or by other processes, as embodiments of the present application are not strictly limited in this regard.

In some embodiments, the first swing arm 325 may be the same shape and material as the second swing arm 326 to use the same material, thereby saving the material type of the folding assembly 12 and reducing the cost of the folding assembly 12. In other embodiments, the shape and/or material of the first swing arm 325 may be different from the second swing arm 326, which is not strictly limited in the embodiments of the present application.

Referring to fig. 17A and 17B in combination, fig. 17A is a schematic structural view of the damping assembly 327 shown in fig. 12, and fig. 17B is an exploded schematic structural view of the damping assembly 327 shown in fig. 17A.

In some embodiments, the damping assembly 327 includes a first detent 3271, a second detent 3272, a plurality of synchronizing gears 3273, a first fixed plate 3274, a second fixed plate 3275, an elastic member 3276, a first adapter shaft 3277, a second adapter shaft 3278, and a plurality of third adapter shafts 3279. In this embodiment, the number of the synchronizing gears 3273 is two and the number of the third transfer shafts 3279 is two.

Illustratively, the first detent 3271 includes a first tab structure 3271a and a first through hole 3271b, and the second detent 3272 includes a second tab structure 3272a and a second through hole 3272b, with the second tab structure 3272a being disposed face-to-face with the first tab structure 3271 a. The plurality of synchronizing gears 3273 are located between the first detent 3271 and the second detent 3272, and the plurality of synchronizing gears 3273 are engaged with each other. The synchronizing gears 3273 are each provided with a rotation shaft hole 3273a. Each of the synchronizing gears 3273 may include a plurality of engaging teeth 3273b, a plurality of first protrusions 3273c, and a plurality of second protrusions 3273d. The plurality of mesh teeth 3273b may be located at a middle portion of the synchronizing gears 3273, and the plurality of mesh teeth 3273b of adjacent two synchronizing gears 3273 mesh with each other. The plurality of first protrusions 3273c and the plurality of second protrusions 3273d are disposed opposite to each other at both ends of the synchronizing gear 3273. In some use states, the first protrusions 3273c of the synchronizing gear 3273 cooperate with the first bump structures 3271a to form a clamping structure; the second protrusions 3273d of the synchronizing gear 3273 cooperate with the second bump structure 3272a to form a clamping structure.

Illustratively, the first fixed plate 3274 is located on a side of the first detent 3271 facing away from the second detent 3272. The first fixing plate 3274 includes a plurality of locking grooves 3274a spaced apart from each other, and the locking grooves 3274a extend to a side surface of the first fixing plate 3274 such that the adaptor shaft can be locked into the locking grooves 3274a from the side surface of the first fixing plate 3274 to be locked to the first fixing plate 3274. The first fixing plate 3274 may have a substantially flat plate shape.

Illustratively, the resilient member 3276 is located on a side of the second detent member 3272 facing away from the first detent member 3271. The elastic member 3276 includes a plurality of springs 3276a. The number of springs 3276a is the same as the number of first through holes 3271 b. The number of springs 3276a may be four. In other embodiments, the elastic member 3276 can be made of an elastic material such as elastic rubber, which is not strictly limited in this application.

The second fixing plate 3275 is disposed on a side of the elastic member 3276 facing away from the second detent member 3272. The second fixing plate 3275 may have a plate body structure. The second fixing plate 3275 includes a plurality of third through holes 3275a, and the plurality of third through holes 3275a are disposed at intervals from one another. For example, the number, arrangement shape, and arrangement pitch of the plurality of first through holes 3271b, the plurality of second through holes 3272b, and the plurality of third through holes 3275a may be the same. The number of third through holes 3275a may be four.

Illustratively, one end of the first shaft 3277 is provided with a limit flange 3277a, and the other end of the first shaft 3277 is provided with a limit slot 3277b. The first rotating shaft 3277 is inserted into the second fixing plate 3275, one of the springs 3276a, the second locking member 3272, the first locking member 3271, and the first fixing plate 3274. The first adapter shaft 3277 passes through one of the third through holes 3275a of the second fixing plate 3275, an inner space of one of the springs 3276a, one of the second through holes 3272b of the second blocking member 3272, one of the first through holes 3271b of the first blocking member 3271, and one of the blocking grooves 3274a of the first fixing plate 3274. The limit flange 3277a of the first switching shaft 3277 is located on a side of the second fixing plate 3275 opposite to the second locking element 3272 and abuts against the second fixing plate 3275, and the first fixing plate 3274 is engaged with the limit slot 3277b of the first switching shaft 3277, so that the first switching shaft 3277, the second fixing plate 3275, one of the springs 3276a, the second locking element 3272, the first locking element 3271 and the first fixing plate 3274 can maintain a relatively fixed positional relationship, and the spring 3276a is in a compressed state. The first adapting shaft 3277 may be fixedly connected to the first fixing plate 3274 by welding or bonding.

Illustratively, one end of the second adapter shaft 3278 is provided with a limiting flange 3278a, and the other end of the second adapter shaft 3278 is provided with a limiting slot 3278b. The second switching shaft 3278 is inserted into the second fixing plate 3275, the other spring 3276a, the second locking member 3272, the first locking member 3271, and the first fixing plate 3274. The second switching shaft 3278 passes through the other third through hole 3275a of the second fixing plate 3275, the inner space of the other spring 3276a, the other second through hole 3272b of the second latch 3272, the other first through hole 3271b of the first latch 3271, and the other latch groove 3274a of the first fixing plate 3274. The limit flange 3278a of the second switching shaft 3278 is located on a side of the second fixing plate 3275 opposite to the second locking element 3272 and abuts against the second fixing plate 3275, and the first fixing plate 3274 is engaged with the limit slot 3278b of the second switching shaft 3278, so that the second switching shaft 3278, the second fixing plate 3275, the other spring 3276a, the second locking element 3272, the first locking element 3271 and the first fixing plate 3274 can maintain a relatively fixed positional relationship, and the spring 3276a is in a compressed state. The second adapting shaft 3278 may be fixedly connected to the first fixing plate 3274 by welding or bonding.

Illustratively, one end of the third adapter shaft 3279 is provided with a limiting flange 3279a, and the other end of the third adapter shaft 3279 is provided with a limiting slot 3279b. The number of the third transfer shafts 3279 is the same as the number of the synchronizing gears 3273, and the third transfer shafts 3279, the synchronizing gears 3273, and part of the springs 3276a in the elastic members 3276 are provided in one-to-one correspondence. The third switching shaft 3279 is inserted into the second fixing plate 3275, the other spring 3276a, the second locking member 3272, the synchronizing gear 3273, the first locking member 3271, and the first fixing plate 3274. The third transfer shaft 3279 passes through the other third through hole 3275a of the second fixing plate 3275, the inner space of the other spring 3276a, the other second through hole 3272b of the second positioning member 3272, the rotation shaft hole 3273a of the synchronizing gear 3273, the other first through hole 3271b of the first positioning member 3271, and the other clamping groove 3274a of the first fixing plate 3274. The limit flange 3279a of the third transfer shaft 3279 is located on the side of the second fixing plate 3275 facing away from the second locking member 3272 and abuts against the second fixing plate 3275, and the first fixing plate 3274 is engaged with the limit locking groove 3279b of the third transfer shaft 3279, so that the third transfer shaft 3279, the second fixing plate 3275, the other spring 3276a, the second locking member 3272, the first locking member 3271 and the first fixing plate 3274 can maintain a relatively fixed positional relationship, and the spring 3276a is in a compressed state. The third adapter shaft 3279 may be fixedly connected to the first fixing plate 3274 by welding or bonding.

Referring to fig. 15, 16 and 18 in combination, fig. 18 is a schematic structural view of a portion of the top connection assembly 32 of fig. 11. The first swing arm 325, the second swing arm 326 and the damping assembly 327 are illustrated in fig. 18.

In some embodiments, the rotating end 3251 of the first swing arm 325 and the rotating end 3261 of the second swing arm 326 are located between the first detent 3271 and the second detent 3272. The first transfer shaft 3277 further passes through a rotation shaft hole 3251a of the rotation end 3251 of the first swing arm 325 to be inserted into the rotation end 3251 of the first swing arm 325, and the second transfer shaft 3278 further passes through a rotation shaft hole 3261a of the rotation end 3261 of the second swing arm 326 to be inserted into the rotation end 3261 of the second swing arm 326.

In some use states, the first protrusions 3251c of the first swing arm 325 cooperate with the first bump structures 3271a of the first positioning element 3271 to form a clamping structure; the second protrusions 3251d of the first swing arm 325 cooperate with the second bump structures 3272a of the second detent 3272 to form a locking structure. The first protrusions 3261c of the second swing arm 326 cooperate with the first bump structures 3271a of the first positioning element 3271 to form a clamping structure; the second protrusions 3261d of the second swing arm 326 cooperate with the second bump structures 3272a of the second positioning element 3272 to form a locking structure.

Illustratively, the rotational end 3251 of the first swing arm 325 engages the rotational end 3261 of the second swing arm 326 via a plurality of synchronizing gears 3273. Illustratively, a plurality of synchronizing gears 3273 may be arranged in a string, adjacent two synchronizing gears 3273 being engaged with each other, and two synchronizing gears 3273 at the ends being engaged with the rotating ends 3251, 3261 of the first swing arm 325 and the second swing arm 326, respectively. The plurality of engagement teeth 3251b of the rotating end 3251 of the first swing arm 325 are engaged with the plurality of engagement teeth 3273b of the adjacent synchronizing gear 3273, and the plurality of engagement teeth 3261b of the rotating end 3261 of the second swing arm 326 are engaged with the plurality of engagement teeth 3273b of the adjacent synchronizing gear 3273.

In the present embodiment, the rotating end 3251 of the first swing arm 325, the rotating end 3261 of the second swing arm 326 and the synchronizing gear 3273 are clamped to the first clamping member 3271 and the second clamping member 3272 to form a clamping structure, so that the first swing arm 325 and the second swing arm 326 can stay at certain positions. In addition, since the relative positional relationship of the components of the damping assembly 327 is stable, the elastic member 3276 is in a compressed state, and the elastic force generated by the elastic member 3276 drives the first clamping member 3271 and the second clamping member 3272 to cooperate and compress the rotating end 3251 of the first swing arm 325, the synchronizing gear 3273 and the rotating end 3261 of the second swing arm 326, so that the clamping structures between the rotating end 3251 of the first swing arm 325, the synchronizing gear 3273 and the rotating end 3261 of the second swing arm 326 and the first clamping member 3271 and the second clamping member 3272 are stable.

Referring to fig. 19 and fig. 20 in combination, fig. 19 is a schematic structural view of the first fixing frame 321 shown in fig. 12, and fig. 20 is a schematic structural view of the first fixing frame 321 shown in fig. 19 at another angle.

In some embodiments, the first fixing frame 321 has a first pivot hole 3211, a first receiving groove 3212, and a first mating groove 3213. The first receiving groove 3212 is used for mounting other structural members. The first pivot hole 3211 and the first engagement groove 3213 communicate with the first receiving groove 3212. The first engagement groove 3213 has an engagement wall surface 3213a disposed adjacent to the first rotation shaft hole 3211, and the engagement wall surface 3213a may be an arc surface.

The first fixing frame 321 may further have a first sliding groove 3214 and a first installation groove 3215, and the first installation groove 3215 communicates with the first sliding groove 3214. At this time, the structural member mounted to the first mounting groove 3215 may partially protrude into the first sliding groove 3214. The first fixing frame 321 may further have first arc-shaped grooves 3216, the number of the first arc-shaped grooves 3216 may be one or more, and the first arc-shaped grooves 3216 may be provided at an end of the first fixing frame 321.

Referring to fig. 21 and 22, fig. 21 is a schematic structural view of the second fixing frame 322 shown in fig. 12, and fig. 22 is a schematic structural view of the second fixing frame 322 shown in fig. 12 at another angle.

In some embodiments, the second fixing frame 322 has a second rotation shaft hole 3221, a second receiving groove 3222, and a second fitting groove 3223. The second receiving groove 3222 is used for mounting other structural members. The second rotation shaft hole 3221 and the second fitting groove 3223 communicate with the second receiving groove 3222. The second fitting groove 3223 has a fitting wall surface 3223a disposed adjacent to the second rotation shaft hole 3221, and the fitting wall surface 3223a may be an arc surface.

The second fixing frame 322 may further have a second sliding groove 3224 and a second mounting groove 3225, and the second mounting groove 3225 communicates with the second sliding groove 3224. At this time, the structural member mounted to the second mounting groove may partially extend into the second sliding groove. The second fixing frame 322 may further have second arc grooves 3226, the number of the second arc grooves 3226 may be one or more, and the second arc grooves 3226 may be provided at an end of the second fixing frame 322.

Referring to fig. 23 and 24 in combination, fig. 23 is a schematic diagram illustrating an assembled structure of the top connecting assembly 32 and the top cover 42 of the spindle 31 shown in fig. 11, and fig. 24 is a schematic diagram illustrating an assembled structure of the top connecting assembly 32 and the spindle 31 shown in fig. 11.

In some embodiments, two ends of the first connecting arm 323 are respectively connected to the spindle 31 and the first fixing frame 321, and two ends of the second connecting arm 324 are respectively connected to the spindle 31 and the second fixing frame 322. The two ends of the first swing arm 325 are respectively connected with the main shaft 31 and the first fixing frame 321, and the two ends of the second swing arm 326 are respectively connected with the main shaft 31 and the second fixing frame 322. The damping assembly 327 is mounted in the spindle 31 and connects the first swing arm 325 and the second swing arm 326.

Referring to fig. 25 to 28 in combination, fig. 25 is a schematic cross-sectional view of the structure shown in fig. 24 taken along C-C, fig. 26 is a schematic cross-sectional view of the structure shown in fig. 24 taken along D-D, fig. 27 is a schematic view of the structure shown in fig. 25 in a closed state, and fig. 28 is a schematic view of the structure shown in fig. 26 in a closed state. The section taken along C-C passes through the first mount 321, the first connecting arm 323, the spindle 31, the second connecting arm 324, and the second mount 322. The section taken along D-D passes through the first mount 321, the first connecting arm 323, the spindle 31, the second connecting arm 324, and the second mount 322.

In some embodiments, the first end 3231 of the first connecting arm 323 is rotatably connected to the main shaft 31, and the second end 3232 of the first connecting arm 323 is rotatably connected to the first fixing frame 321. The first end 3241 of the second connecting arm 324 is rotatably connected to the main shaft 31, and the second end 3242 of the second connecting arm 324 is rotatably connected to the second fixing frame 322.

Illustratively, the first arc-shaped arm 3233 of the first end 3231 of the first connecting arm 323 is mounted to the first arc-shaped space 41b of the main shaft 31 such that the first end 3231 of the first connecting arm 323 is rotatably connected to the main shaft 31 by means of a virtual shaft connection. The rotation shaft 3281 passes through the rotation shaft hole 3234 of the second end 3232 of the first connection arm 323 and passes through the first rotation shaft hole 3211 of the first fixing frame 321 to connect the second end 3232 of the first connection arm 323 and the first fixing frame 321 in a plugging manner, so that the second end 3232 of the first connection arm 323 is rotationally connected with the first fixing frame 321 in a physical shaft connection manner.

The second arc-shaped arm 3243 of the first end 3241 of the second connecting arm 324 is mounted in the second arc-shaped space 41c of the main shaft 31, so that the first end 3241 of the second connecting arm 324 is rotatably connected to the main shaft 31 through a virtual shaft connection manner. The rotation shaft 3282 passes through the rotation shaft hole 3244 of the second end 3242 of the second connection arm 324 and passes through the second rotation shaft hole 3221 of the second fixing frame 322 to connect the second end 3242 of the second connection arm 324 and the second fixing frame 322 in a plugging manner, so that the second end 3242 of the second connection arm 324 is rotatably connected with the second fixing frame 322 in a physical shaft connection manner.

Illustratively, as shown in FIG. 25, when the folding assembly 12 is in the unfolded state, the end of the first arcuate arm 3233 is at least partially positioned in the first relief aperture 412, e.g., the first tab 3233a of the first arcuate arm 3233 is at least partially positioned in the first relief aperture 412 of the main support plate 41. At this time, the design of the first avoiding hole 412 enables the first arc-shaped arm 3233 to have a larger arc, the matching arc between the first arc-shaped arm 3233 and the first arc-shaped space 41b of the main supporting plate 41 (i.e. the arc of the first arc-shaped arm 3233 extending into the first arc-shaped space 41 b) is larger, and the relative movement of the two is smoother. In addition, the risk of the first arc-shaped arm 3233 being separated from the main support plate 41 can be reduced, so that the connection relationship between the two is more reliable.

When the folding assembly 12 is in the unfolded state, the end of the second arc-shaped arm 3243 is at least partially positioned in the second escape hole 413, for example, the second protrusion 3243a of the second arc-shaped arm 3243 is at least partially positioned in the second escape hole 413 of the main support plate 41. At this time, the design of the second avoiding hole 413 enables the second arc-shaped arm 3243 to have a larger radian, the matching radian of the second arc-shaped arm 3243 and the second arc-shaped space 41c of the main supporting plate 41 is larger, and the relative movement of the second arc-shaped arm 3243 and the second arc-shaped space 41c is smoother. In addition, the risk of the second arc-shaped arm 3243 being separated from the main support plate 41 can be reduced, so that the connection relationship between the two is more reliable.

In this embodiment, when the folding assembly 12 is in the open state, since the first protruding block 3233a is at least partially located in the first avoiding hole 412, the first avoiding hole 412 can be filled, and the second protruding block 3243a is at least partially located in the second avoiding hole 413, the second avoiding hole 413 can be filled, so that the main supporting plate 41 can provide a relatively complete supporting environment for the bending portion 22 of the screen 2, so as to improve the reliability of the screen 2.

Wherein, when the folding assembly 12 is in the open state, the first bump 3233a may occupy most of the space of the first avoidance hole 412. In some embodiments, the end face of the first bump 3233a may be flush with the support face 411 of the main support plate 41 to achieve a splice, thereby providing a more complete and flat support environment. In other embodiments, the end surface of the first bump 3233a may be slightly recessed with respect to the supporting surface 411 of the main supporting plate 41, so as to satisfy the connection requirement of the first arc-shaped arm 3233 and the supporting requirement of the screen 2. At this time, since the opening area of the first avoiding hole 412 is smaller, and the end surface of the first bump 3233a is recessed to a shallower extent with respect to the supporting surface 411 of the main supporting plate 41, when the area of the bent portion 22 of the screen 2 corresponding to the first avoiding hole 412 is pressed or bumped, the risk of occurrence of significant recess or damage is smaller, and the reliability of the screen 2 is higher.

The second bump 3243a may occupy a majority of the space of the second relief hole 413 when the folding assembly 12 is in the unfolded state. In some embodiments, the end face of the second bump 3243a may be flush with the support face 411 of the main support plate 41 to achieve a splice, thereby providing a more complete and flat support environment. In other embodiments, the end surface of the second bump 3243a may be slightly recessed with respect to the supporting surface 411 of the main supporting plate 41, so as to satisfy the connection requirement of the second arc-shaped arm 3243 and the supporting requirement of the screen 2. At this time, since the opening area of the second avoidance hole 413 is smaller, and the end surface of the second bump 3243a is recessed to a shallower extent relative to the supporting surface 411 of the main supporting plate 41, when the area of the bent portion 22 of the screen 2 corresponding to the second avoidance hole 413 is pressed or bumped, the risk of occurrence of significant recess or damage is smaller, and the reliability of the screen 2 is higher.

In other embodiments, the first arc-shaped arm 3233 and the second arc-shaped arm 3243 may have enough radian matching with the main support plate 41 through structural design or dimensional design, and the main support plate 41 may not have the first avoiding hole 412 and the second avoiding hole 413, so that the main support plate 41 has higher integrity and can better support the bending portion 22 of the screen 2.

It will be appreciated that in other embodiments, the first end 3231 of the first link arm 323 may be rotatably coupled to the main shaft 31 by way of a solid shaft connection; and/or the first end 3241 of the second connecting arm 324 may be rotatably coupled to the main shaft 31 by way of a solid shaft connection, which is not strictly limited in this application. In other embodiments, the second end 3232 of the first connecting arm 323 may be rotatably connected to the first fixing frame 321 by a connection manner of a virtual shaft; and/or, the second end 3242 of the second connecting arm 324 may be rotatably connected to the second fixing frame 322 by a connection manner of a virtual shaft, which is not strictly limited herein.

Referring to fig. 29, fig. 29 is a schematic cross-sectional view of the structure of fig. 24 taken along line E-E.

In some embodiments, the first engagement piece 3235a of the first connection arm 323 may be mounted to the first engagement groove 3213 of the first fixing frame 321 to be engaged with the first engagement groove 3213 of the first fixing frame 321. Wherein the mating face 3235b of the first mating block 3235a contacts the mating wall face 3213a of the first mating groove 3213. The second coupling block 3245a of the second coupling arm 324 may be mounted to the second coupling groove 3223 of the second fixing frame 322 to be coupled with the second coupling groove 3223 of the second fixing frame 322. Wherein the mating face 3245b of the second mating block 3245a contacts the mating wall 3223a of the second mating groove 3223.

In this embodiment, the contact structure between the mating surface and the mating wall increases the contact area between the mating block and the fixing frame, so as to increase the connection stability between the connecting arm and the fixing frame and improve the reliability of the folding assembly 12.

Illustratively, the mating surface 3235b of the first mating block 3235a and/or the mating wall surface 3213a of the first mating groove 3213 may be an arcuate surface, where the mating surface 3235b of the first mating block 3235a forms an arcuate overlap with the mating wall surface 3213a of the first mating groove 3213. The mating surface 3245b of the second mating block 3245a and/or the mating wall 3223a of the second mating groove 3223 may be cambered surfaces, and the mating surface 3245b of the second mating block 3245a and the mating wall 3223a of the second mating groove 3223 form a cambered surface overlap joint.

In this embodiment, the above-mentioned cambered surface overlap joint structure has increased the connection stability of linking arm and mount in folding subassembly 12 motion process for the relative motion of linking arm and mount is more steady, has improved folding subassembly 12 reliability.

Referring to fig. 30 and 31 in combination, fig. 30 is a schematic cross-sectional view of the structure shown in fig. 24 taken along the line F-F, and fig. 31 is a schematic view of the structure shown in fig. 30 in a closed state.

In some embodiments, the rotating end 3251 of the first swing arm 325 is rotatably connected to the spindle 31, and the sliding end 3252 of the first swing arm 325 is slidably connected to the first fixing frame 321; the rotating end 3261 of the second swing arm 326 is rotatably connected to the spindle 31, and the sliding end 3262 of the second swing arm 326 is slidably connected to the second fixing frame 322. Illustratively, the sliding end 3252 of the first swing arm 325 is slidably mounted to the first sliding groove 3214 of the first fixing frame 321 to slidably couple the first fixing frame 321. The rotation end 3251 of the first swing arm 325 is attached to the main shaft 31, and is rotatably coupled to the main shaft 31 via a first rotation shaft 3277. The sliding end 3262 of the second swing arm 326 is slidably mounted in the second sliding groove 3224 of the second fixing frame 322 to be slidably connected to the second fixing frame 322. The rotating end 3261 of the second swing arm 326 is mounted to the spindle 31 and is rotatably coupled to the spindle 31 via a second coupling shaft 3278.

In the present application, two ends of the first connecting arm 323 of the top connecting component 32 are respectively rotatably connected with the main shaft 31 and the first fixing frame 321, so as to form a connecting rod structure, and a rotating end 3251 of the first swing arm 325 is rotatably connected with the main shaft 31, and a sliding end is slidably connected with the first fixing frame 321, so as to form a connecting rod sliding block structure; the two ends of the second connecting arm 324 are respectively and rotatably connected with the main shaft 31 and the second fixing frame 322 to form a connecting rod structure, and the rotating end 3261 of the second swing arm 326 is rotatably connected with the main shaft 31 and the sliding end is slidably connected with the second fixing frame 322 to form a connecting rod sliding block structure.

The first fixing frame 321 is used for connecting the first shell 11, the second fixing frame 322 is used for connecting the second shell 13, therefore, the top connecting component 32 of the folding component 12 is connected between the first shell 11 and the second shell 13 and the main shaft 31 through a connecting rod structure and a connecting rod sliding block structure, the number of components is small, the matching relation and the matching position are simple, the components are easy to manufacture and assemble, mass production is facilitated, and the cost of the shell device 1 is reduced. In addition, since the main shaft 31 is linked with the first fixing frame 321 through the first connecting arm 323 and the first swing arm 325 and is linked with the second fixing frame 322 through the second connecting arm 324 and the second swing arm 326, the movement track of the folding assembly 12 is accurate, and the folding assembly 12 has better mechanism tensile capacity and mechanism anti-extrusion capacity.

As shown in fig. 30, in the open state, the rotating end 3251 of the first swing arm 325 rotates into the main shaft 31, the rotating end 3261 of the second swing arm 326 rotates into the main shaft 31, the sliding end 3252 of the first swing arm 325 slides into the first fixed frame 321, the sliding end 3262 of the second swing arm 326 slides into the second fixed frame 322, and the distances between the first fixed frame 321 and the second fixed frame 322 and the main shaft 31 are smaller.

As shown in fig. 31, in the closed state, the rotating end 3251 of the first swing arm 325 partially rotates out of the main shaft 31, the rotating end 3261 of the second swing arm 326 partially rotates out of the main shaft 31, the sliding end 3252 of the first swing arm 325 partially slides out of the first fixed frame 321, the sliding end 3262 of the second swing arm 326 partially slides out of the second fixed frame 322, and the distances between the first fixed frame 321 and the second fixed frame 322 and the main shaft 31 are large.

Thus, the folder assembly 12 is able to draw the first and

second housings

11 and 13, respectively, by the first and

second holders

321 and 322 in the opened state, such that the first and

second housings

11 and 13 are close to the main shaft 31; in the closed state, the first casing 11 and the second casing 13 are respectively pushed away by the first fixing frame 321 and the second fixing frame 322, so that the first casing 11 and the second casing 13 are far away from the main shaft 31, the structure of the folding assembly 12 can be better adapted to the deformation structure of the screen 2, the risk of pulling or pressing the screen 2 is reduced, and the reliability of the screen 2 and the electronic equipment 200 is improved.

In addition, as shown in fig. 30 and 31, since the damping component 327 is connected between the first swing arm 325 and the second swing arm 326, the damping component 327 can provide damping force and pushing force when the first swing arm 325 and the second swing arm 326 move, the first swing arm 325 can be connected with the first housing 11 through the first fixing frame 321, the first swing arm 325 moves along with the first housing 11, the second swing arm 326 can be connected with the second housing 13 through the second fixing frame 322, and the second swing arm 326 moves along with the second housing 13, so that in the process of relatively unfolding or folding the first housing 11 and the second housing 13, the damping component 327 can provide damping force, so that a user can sense resistance and pushing force when unfolding or folding the electronic device 200, thereby obtaining better hand opening and closing experience, and improving the mechanism operation experience of the electronic device 200. In addition, the damping assembly 327 may further enable the first swing arm 325 and the second swing arm 326 to stay at certain positions, so that the first housing 11 and the second housing 13 can stay at certain positions, and thus the open state or the closed state can be better maintained, so as to improve the use experience of the user.

In addition, the rotating end 3251 of the first swing arm 325 is meshed with the rotating end 3261 of the second swing arm 326 through a plurality of synchronizing gears 3273, so that the rotating angle of the rotating end 3251 of the first swing arm 325 is the same as the rotating angle of the rotating end 3261 of the second swing arm 326, and the directions of the rotating angles are opposite, so that the rotating actions of the first swing arm 325 and the second swing arm 326 relative to the main shaft 31 keep synchronous, that is, the rotating actions of the first housing 11 and the second housing 13 relative to the main shaft 31 keep synchronous, and the mechanism operation experience of a user is improved.

It is understood that the number, size, etc. of the synchronizing gears 3273 may be designed according to the specific form, size, etc. of the product, which is not strictly limited in the present application. The more the number of the synchronizing gears 3273, the smaller the size of the synchronizing gears 3273, so that more space can be released, the fewer the number of the synchronizing gears 3273, the larger the size of the synchronizing gears 3273, the smaller the transmission accumulated error of the synchronizing gears 3273, and the improvement of the motion accuracy is facilitated.

It is understood that the damping assembly 327 of the present application may have a variety of implementations. For example, in other embodiments, the damping assembly 327 may indirectly define the position of the first swing arm 325 and the position of the second swing arm 326 by defining the position of the synchronizing gear 3273. For example, the first and

second locking members

3271 and 3272 and the synchronizing gear 3273 form a locking structure therebetween, and the rotating ends 3251 and 3261 of the first and

second swing arms

325 and 326 do not have a locking structure therebetween. In other embodiments, the damping assembly 327 may not be provided with the second detent 3272, and the first swing arm 325 and the second swing arm 326 can stay at certain positions through the clamping structure between the first detent 3271 and the synchronizing gear 3273, the first swing arm 325 and the second swing arm 326. In other embodiments, the damping component 327 may not be provided with a fixing plate, and two ends of the elastic member 3276 may respectively abut against the first clamping member 3271 and the wall surface of the first installation space, and the elastic member 3276 is compressed between the first clamping member 3271 and the main shaft 31. In other embodiments, the damper assembly 327 may not include the synchronizing gear 3273 and the third transfer shaft 3279, and the rotational end 3251 of the first swing arm 325 is directly engaged with the rotational end 3261 of the second swing arm 326. The above embodiments are exemplary structures of the damping assembly 327, and other implementation structures of the damping assembly 327 are possible, which are not strictly limited in this application.

In other embodiments, the damping component 327 connecting the rotating end 3251 of the first swing arm 325 and the rotating end 3261 of the second swing arm 326 may not be disposed between the rotating end 3251 of the first swing arm 325 and the rotating end 3261 of the second swing arm 326, and the rotating end 3251 of the first swing arm 325 may be rotatably connected to the main shaft 31 through a rotating shaft, which may be a part of the rotating end 3251 of the first swing arm 325 or a separate structural member and is inserted into the rotating end 3251 of the first swing arm 325; the rotating end 3261 of the second swing arm 326 may be rotatably connected to the main shaft 31 through a rotating shaft, and the rotating shaft may be a part of the rotating end 3261 of the second swing arm 326, or may be an independent structural member and is inserted into the rotating end 3261 of the second swing arm 326.

Referring again to fig. 12, 20, 22, and 30, in some embodiments, the folding assembly 12 may provide a damping structure in the first mount 321 for applying a damping force to the sliding end 3252 of the first swing arm 325, and a damping structure in the second mount 322 for applying a damping force to the sliding end 3262 of the second swing arm 326. Illustratively, the first stop 3291 is mounted to the first mounting slot 3215 and the second stop 3292 is mounted to the second mounting slot. When the folding assembly 12 is in the open state, the first stop member 3291 can abut against the sliding end 3252 of the first swing arm 325, the second stop member 3292 abuts against the sliding end 3262 of the second swing arm 326, and the housing device 1 is kept in the open state when no large external force is applied to the housing device, so that the use experience of a user is improved. In addition, the first stopper 3291 and the second stopper 3292 can also provide a limit resistance during the unfolding of the electronic apparatus 200 to enter an open state, and during the folding to release the open state, so that a user can experience a better sense of mechanism operation.

In some embodiments, as shown in fig. 30 and 31, during the movement of the folding assembly 12, the first swing arm 325 rotates relative to the main shaft 31, and the first avoidance notch 414 of the main support plate 41 is used to avoid the first swing arm 325, so that no interference occurs between the first swing arm 325 and the main support plate 41, so as to ensure the smoothness and reliability of the movement of the mechanism. The second swing arm 326 rotates relative to the main shaft 31, and the second avoidance notch 415 of the main support plate 41 is used for avoiding the second swing arm 326, so that no interference occurs between the second swing arm 326 and the main support plate 41, and smooth and reliable movement of the mechanism is ensured.

When the folding assembly 12 is in the open state, the first splicing block 3251e of the first swing arm 325 is at least partially located in the first avoidance gap 414 of the main support plate 41, and the second splicing block 3261e of the second swing arm 326 is at least partially located in the second avoidance gap 415 of the main support plate 41. As shown in fig. 31, when the folding assembly 12 is in the closed state, the first splicing block 3251e of the first swing arm 325 is turned into the movable space 41a of the main shaft 31, and the second splicing block 3261e of the second swing arm 326 is turned into the movable space 41a of the main shaft 31.

In this embodiment, when the folding assembly 12 is in the open state, since the first splicing block 3251e is at least partially located in the first avoidance gap 414, the first avoidance gap 414 can be filled, and the second splicing block 3261e is at least partially located in the second avoidance gap 415, the second avoidance gap 415 can be filled, and the main supporting plate 41, the first splicing block 3251e and the second splicing block 3261e can be used for supporting the bending portion 22 of the screen 2 together, so that the main supporting plate 41 provides a relatively complete supporting environment for the bending portion 22 of the screen 2, so as to improve the reliability of the screen 2.

Illustratively, the first splice block 3251e can occupy a majority of the space of the first avoidance gap 414 when the folding assembly 12 is in the open state. In some embodiments, the end face of the first splice block 3251e may be flush with the support face 411 of the main support plate 41 to achieve a splice, thereby providing a more complete and flat support environment. In other embodiments, the end surface of the first splicing block 3251e may be slightly recessed with respect to the supporting surface 411 of the main supporting plate 41, so as to satisfy the connection requirement of the first connecting arm 323 and the supporting requirement of the screen 2. At this time, by controlling the concave degree of the end face of the first splicing block 3251e relative to the supporting surface 411 of the main supporting plate 41 to be shallow enough, when the area of the bending portion 22 of the screen 2 corresponding to the first avoiding notch 414 is pressed or bumped, the risk of occurrence of obvious concave or damage is small, and the reliability of the screen 2 is high. In other embodiments, the end surface of the first splicing block 3251e may be flush with the supporting surface 411 of the main supporting plate 41, but a certain gap is formed between the two, so that the splicing is not formed, but the structure can still provide a better supporting environment for the screen 2.

The second splice block 3261e can occupy a majority of the space of the second avoidance gap 415. In some embodiments, the end face of the second splice block 3261e may be flush with the support face 411 of the main support plate 41 to achieve a splice, thereby providing a more complete and flat support environment. In other embodiments, the end surface of the second splicing block 3261e may be slightly recessed with respect to the supporting surface 411 of the main supporting plate 41, so as to satisfy the connection requirement of the second connecting arm 324 and the supporting requirement of the screen 2. At this time, by controlling the concave degree of the end face of the second splicing block 3261e relative to the supporting surface 411 of the main supporting plate 41 to be shallow enough, when the area of the bending portion 22 of the screen 2 corresponding to the second avoiding notch 415 is pressed or bumped, the risk of occurrence of obvious concave or damage is small, and the reliability of the screen 2 is high. In other embodiments, the end surface of the second splicing block 3261e may be flush with the supporting surface 411 of the main supporting plate 41, but a certain gap is formed between the two, so that the splicing is not formed, but the structure can still provide a better supporting environment for the screen 2.

For example, when the folding assembly 12 is in the open state, the end face of the first splicing block 3251e, the end face of the second splicing block 3261e and the supporting face 411 of the main supporting plate 41 are flush, and are located on the same plane, so as to jointly support the bending portion 22 of the screen 2, and provide a relatively complete and flat supporting environment for the bending portion 22 of the screen 2, so as to improve the reliability of the screen 2.

The end surface of the first splicing block 3251e, the end surface of the second splicing block 3261e and the supporting surface of the main supporting plate can be spliced to improve the integrity of the supporting environment. In other embodiments, a certain gap may be formed between at least two of the end face of the first splicing block 3251e, the end face of the second splicing block 3261e, and the supporting surface of the main supporting plate, which is not strictly limited in the embodiments of the present application.

In addition, when the folding assembly 12 is in the closed state, the first splicing block 3251e and the second splicing block 3261e can be further turned into the movable space 41a of the main shaft 31, so that the accommodating space of the folding assembly 12 for accommodating the screen 2 is not affected, and the reliability of the folding assembly 12 is improved. In addition, when the folding assembly 12 is in the closed state, the connecting section 3253 of the first swing arm 325 and the connecting section 3263 of the second swing arm 326 can approach each other through the first avoiding notch 414 and the second avoiding notch 415, and the distance between the two is smaller, so that the folding assembly 12 integrally forms a water drop-like accommodating space.

Referring to fig. 32, fig. 32 is a schematic view of the first support plate 35 and the second support plate 36 shown in fig. 6 at another angle.

In some embodiments, the first support plate 35 includes a first plate body 352, a first rotating block 353, and a first guiding block 354. The first plate 352 includes a supporting surface and a fixing surface 352a opposite to the supporting surface, and the supporting surface of the first plate 352 is the supporting surface 351 of the first supporting plate 35. The first rotating block 353 and the first guide block 354 are fixed to the fixing surface 352a of the first plate body 352. The first support plate 35 may be an integrally formed structural member, or may be assembled from a plurality of components to form an integrated structure. Wherein, the first rotating block 353 may include an arc-shaped arm 3531, and the first guide block 354 may form a first guide chute 3541.

The second support plate 36 includes a second plate body 362, a second rotating block 363, and a second guide block 364. The second plate 362 includes a supporting surface and a fixing surface 362a opposite to the supporting surface, and the supporting surface of the second plate 362 is the supporting surface 361 of the second supporting plate 36. The second rotating block 363 and the second guide block 364 are fixed to the fixing surface 362a of the second plate body 362. The second support plate 36 may be an integrally formed structural member, or may be assembled from a plurality of components to form an integrated structure. Wherein the second rotating block 363 may include an arc arm 3631, and the second guide block 364 may form a second guide chute 3641.

It should be understood that the first rotating block 353 and the second rotating block 363 mainly provide a rotating connection structure, and the first rotating block 353 and the second rotating block 363 may have other implementation structures, and the structures of the two may be the same or different, which is not strictly limited in this application. The first guide block 354 and the second guide block 364 mainly provide a guide chute for guiding the movement direction of other structural members, and the first guide block 354 and the second guide block 364 may have other implementation structures, which are not strictly limited in this application.

It will be appreciated that one or more of the first rotating blocks 353 and the first guiding blocks 354 of the first support plate 35 may form a set of connection structures, and the first support plate 35 may include three sets of connection structures for respectively corresponding to the top connection assembly 32, the middle connection assembly 33 and the bottom connection assembly 34, and also for respectively corresponding to the top, middle and bottom connection structures of the spindle 31. The three sets of connection structures of the first support plate 35 may be designed by referring to each other, and will not be described herein. Similarly, one or more second rotating blocks 363 and one second guide block 364 of the second support plate 36 may form a set of connection structures, and the second support plate 36 may include three sets of connection structures for the top connection assembly 32, the middle connection assembly 33, and the bottom connection assembly 34, respectively, and for the top, middle, and bottom connection structures of the spindle 31, respectively. The three connection structures of the second support plate 36 may be designed by referring to each other, and will not be described herein.

In some embodiments, first plate 352 may include one or more first supplemental blocks 3514, with first supplemental blocks 3514 protruding from one side of first plate 352. The second plate 362 may include one or more second supplemental blocks 3614, the second supplemental blocks 3614 protruding from one side of the second plate 362. The second supplemental block 3614 and the first supplemental block 3514 may be oppositely disposed.

Referring to fig. 33 and 34 in combination, fig. 33 is a schematic cross-sectional view of the folding assembly 12 of fig. 5 taken along G-G, and fig. 34 is a schematic view of the structure of fig. 33 in a closed position. The section taken along G-G passes through the first fixing frame 321, the first rotating block 353 of the first support plate 35, the main shaft 31, the second rotating block 363 of the second support plate 36, and the second fixing frame 322.

In some embodiments, the first support plate 35 is rotatably connected to the first fixing frame 321, and the second support plate 36 is rotatably connected to the second fixing frame 322. Illustratively, the arc-shaped arm 3531 of the first rotating block 353 of the first support plate 35 is mounted to the first arc-shaped groove 3216 of the first fixing frame 321, and the first rotating block 353 is rotatably connected to the first fixing frame 321 in a virtual shaft connection manner, so that the first support plate 35 is rotatably connected to the first fixing frame 321. The arc-shaped arm 3631 of the second rotating block 363 of the second support plate 36 is mounted in the second arc-shaped groove 3226 of the second fixing frame 322, and the second rotating block 363 is rotatably connected to the second fixing frame 322 in a virtual shaft connection manner, so that the second support plate 36 is rotatably connected to the second fixing frame 322.

In some embodiments, when the first support plate 35 includes a plurality of first rotating blocks 353, the first fixing frame 321 is provided with a plurality of first arc-shaped grooves 3216, and the plurality of first rotating blocks 353 are installed in the plurality of first arc-shaped grooves 3216 in a one-to-one correspondence manner, so as to form a plurality of groups of virtual shaft rotation connection structures, so that the rotation connection between the first support plate 35 and the first fixing frame 321 is smoother and more reliable. Similarly, when the second support plate 36 includes a plurality of second rotating blocks 363, the second fixing frame 322 is provided with a plurality of second arc grooves, and the plurality of second rotating blocks 363 are correspondingly installed in the plurality of second arc grooves one by one, so as to form a plurality of groups of virtual shaft rotating connection structures, so that the rotating connection between the second support plate 36 and the second fixing frame 322 is smoother and more reliable.

It should be understood that the first support plate 35 may be rotatably connected to the first fixing frame 321 by a connection manner of a solid shaft, and the second support plate 36 may be rotatably connected to the second fixing frame 322 by a connection manner of a solid shaft, which is not strictly limited in this application.

Referring to fig. 35 and 36 in combination, fig. 35 is a schematic cross-sectional view of the folding assembly 12 of fig. 5 taken along H-H, and fig. 36 is a schematic view of the structure of fig. 35 in a closed position. The section taken along H-H passes through the first fixing frame 321, the first swing arm 325, the first guide block 354 of the first support plate 35, the main shaft 31, the second guide block 364 of the second support plate 36, the second swing arm 326, and the second fixing frame 322.

In some embodiments, the first support plate 35 is slidably coupled to the sliding end 3252 of the first swing arm 325 and the second support plate 36 is slidably coupled to the sliding end 3262 of the second swing arm 326. The first guide block 354 of the first support plate 35 may be mounted on the first avoidance area 3252b of the sliding end 3252 of the first swing arm 325, the rotating shaft 3283 inserted into the sliding end 3252 of the first swing arm 325 may be mounted on the guide chute 3541 of the first guide block 354, the first guide block 354 may slide relative to the sliding end 3252 of the first swing arm 325 through the first avoidance area 3252b, and the rotating shaft 3283 may slide in the guide chute 3541 of the first guide block 354, so that the first support plate 35 is slidably connected to the sliding end 3252 of the first swing arm 325.

The second guide block 364 of the second support plate 36 may be mounted on the second avoidance area 3262b of the sliding end 3262 of the second swing arm 326, the rotating shaft 3284 inserted into the sliding end 3262 of the second swing arm 326 is mounted on the guide chute 3641 of the second guide block 364, the second guide block 364 may slide relative to the sliding end 3262 of the second swing arm 326 through the second avoidance area 3262b, and the rotating shaft 3284 may slide in the guide chute 3641 of the second guide block 364, so that the second support plate 36 is slidably connected with the sliding end 3262 of the second swing arm 326.

In the present embodiment, the first support plate 35 is slidably connected to the sliding end 3252 of the first swing arm 325 and rotatably connected to the first fixing frame 321, and the sliding end 3252 of the first swing arm 325 and the first fixing frame 321 together define a movement track of the first support plate 35; the second support plate 36 is slidably connected to the sliding end 3262 of the second swing arm 326 and rotatably connected to the second fixing frame 322, and the sliding end 3262 of the second swing arm 326 and the second fixing frame 322 together define a movement track of the second support plate 36. Therefore, the first support plate 35 and the second support plate 36 can move along with the connecting assembly, and the movement track is accurate, so that the reliability of the folding assembly 12 is higher.

In the closed state, as shown in fig. 34 and 36, the first support plate 35, the main shaft 31 and the second support plate 36 of the folding assembly 12 together enclose a water drop-like accommodating space for accommodating the screen 2, so that the screen 2 can be accommodated inside the folding assembly 12, and is not easy to damage and has high reliability. In addition, in some positions of the folding assembly 12, the moving parts of the plurality of connecting assemblies (32, 33, 34) of the folding assembly 12 can be matched with the first supporting plate 35, the main shaft 31 and the second supporting plate 36 so as to jointly surround a more complete water-drop-shaped accommodating space. As shown in fig. 36, the supporting surface 351 of the first supporting plate 35, the surface of the connecting section 3253 of the first swing arm 325, the supporting surface 411 of the main supporting plate 41 of the main shaft 31, the surface of the connecting section 3263 of the second swing arm 326, and the supporting surface 361 of the second supporting plate 36 collectively surround a drip-shaped receiving space.

Referring again to fig. 35, when the folding assembly 12 is in the open state, the first splicing block 3251e of the first swing arm 325 is at least partially located in the first avoiding notch 414 of the main support plate 41, and the second splicing block 3261e of the second swing arm 326 is at least partially located in the second avoiding notch 415 of the main support plate 41. At this time, the main supporting plate 41, the first splicing block 3251e, the second splicing block 3261e, the first supporting plate 35 and the second supporting plate 36 support the bending portion of the screen together, and the folding assembly 12 can provide a complete supporting environment for the bending portion 22 of the screen 2, so that the risk of obvious sinking or damage occurs when the bending portion 2 of the screen 2 is pressed or bumped, thereby improving the reliability of the screen 2.

Illustratively, as shown in fig. 35, when the folding assembly 12 is in the unfolded state, the supporting surface 411 of the main supporting plate 41, the end surface of the first splicing block 3251e, the supporting surface 351 of the first supporting plate 35, the end surface of the second splicing block 3261e, and the supporting surface 361 of the second supporting plate 36 are spliced together to form the supporting surface of the folding assembly 12. At this time, the supporting surface of the folding component 12 has no or very small broken hole, and the supporting surface of the folding component 12 is relatively complete, so that a good supporting environment can be provided for the bending portion 22 of the screen 2, so as to improve the reliability of the screen 2.

The supporting surface 351 of the first supporting plate 35 may be a flat surface, so as to provide a better supporting environment for the bent portion 22 of the screen 2. Alternatively, the support surface 351 of the first support plate 35 may be provided with one or more grooves having a very shallow depth, which may be used, but not limited to, for coating or mounting an adhesive layer, through which the bent portion 22 of the screen 2 is connected. It will be appreciated that the depth of the grooves of this portion is small, and the area of the screen 2 corresponding to this portion of grooves will not be significantly recessed when subjected to external pressure (e.g. a user's pressing force), so that the reliability of the screen 2 is high and the service life is long.

The supporting surface 361 of the second supporting plate 36 may be a flat surface to provide a better supporting environment for the bent portion 22 of the screen 2. Alternatively, the support surface 361 of the second support plate 36 may be provided with one or more grooves having a very shallow depth, which may be used, but not limited to, for coating or mounting an adhesive layer, by which the bent portion 22 of the screen 2 is connected. It will be appreciated that the depth of the grooves of this portion is small, and the area of the screen 2 corresponding to this portion of grooves will not be significantly recessed when subjected to external pressure (e.g. a user's pressing force), so that the reliability of the screen 2 is high and the service life is long.

Illustratively, when the folding assembly 12 is in the open state, the first complementary block 3514 of the first supporting plate 35 may be at least partially located in the first avoiding notch 414, so that the splicing effect of the supporting surface 351 of the first supporting plate 35, the end surface of the first splicing block 3251e, and the supporting surface 411 of the main supporting plate 41 is better, and the gap between the adjacent supporting surfaces is smaller. Likewise, the second complementary piece 3614 of the second support plate 36 may be at least partially located in the second avoiding notch 415, so that the splicing effect of the support surface 361 of the second support plate 36, the end surface of the second splicing piece 3261e, and the support surface 411 of the main support plate 41 is better, and the gap between the adjacent support surfaces is smaller.

Of course, in other embodiments, the first splicing block 3251e of the first swing arm 325 may be configured or dimensioned to fill the first avoiding gap 414 to a higher degree, the second splicing block 3261e of the second swing arm 326 may be configured to fill the second avoiding gap 415 to a higher degree, and the first support plate 35 may not be configured with the first supplemental block 3514, and the second support plate 36 may not be configured with the second supplemental block 3614. The embodiment of the present application does not strictly limit the specific splicing structure of the support plate, the main shaft 31 and the moving member.

In this embodiment, when the folding assembly 12 is in the open state, the first support plate 35 and the second support plate 36 may overlap with part of the moving members of the main shaft 31 and the plurality of connecting assemblies (32, 33, 34), so that the main shaft 31 and the moving members can provide rigid support for the first support plate 35 and the second support plate 36, and reduce the pressing deficiency of the first support plate 35 and the second support plate 36, so as to improve the reliability of the screen 2. The following is an illustration.

Referring again to FIG. 33, when the folding assembly 12 is in the unfolded state, the first support plate 35 overlaps the first support block 416 of the main support plate 41 and the second support plate 36 overlaps the second support block 417 of the main support plate 41. In the present embodiment, when the folding assembly 12 is in the unfolded state, since the first support block 416 of the main support plate 41 can provide rigid support for the first support plate 35 and the second support block 417 can provide rigid support for the second support plate 36, the local rigidity of the first support plate 35 and the second support plate 36 can be improved by the overlap design, and the pressing deficiency of the first support plate 35 and the second support plate 36 can be reduced to improve the reliability of the screen 2.

Illustratively, the first support plate 35 has a first overlapping surface 355 overlapping the support surface 4161 of the first support block 416, and a bevel fit is formed between the first overlapping surface 355 of the first support plate 35 and the support surface 4161 of the first support block 416, which is beneficial to improving the overlapping area, so that the first support block 416 supports the first support plate 35 more stably. The second support plate 36 has a first overlapping surface 365 overlapping the support surface 4171 of the second support block 417, and an inclined surface is formed between the first overlapping surface 365 of the second support plate 36 and the support surface 4171 of the second support block 417, which is beneficial to increasing the overlapping area, so that the second support block 417 supports the second support plate 36 more stably.

Referring again to fig. 35, when the folding assembly 12 is in the open state, the first supporting plate 35 may further overlap the first swing arm 325, for example, overlap the rotating end 3251 and/or the connecting section 3253 of the first swing arm 325; the second support plate 36 may also overlap the second swing arm 326, such as overlapping the rotational end 3261 and/or the connecting section 3263 of the second swing arm 326. In the present embodiment, when the folding assembly 12 is in the open state, since the rotating end 3251 and/or the connecting section 3253 of the first swing arm 325 can provide rigid support for the first support plate 35, and the rotating end 3261 and/or the connecting section 3263 of the second swing arm 326 can provide rigid support for the second support plate 36, the local rigidity of the first support plate 35 and the second support plate 36 can be improved by the overlap design, and the pressing deficiency of the first support plate 35 and the second support plate 36 can be reduced, so as to improve the reliability of the screen 2.

The first support plate 35 has a second overlapping surface 356 overlapping the first swing arm 325, and the second overlapping surface 356 of the first support plate 35 forms an inclined surface fit with the first swing arm 325, which is not only beneficial to increasing the overlapping area, so that the first swing arm 325 supports the first support plate 35 more stably, but also enables the relative movement of the first support plate 35 and the first swing arm 325 to be less prone to interference and smoother. The second support plate 36 has a second overlap surface 366 overlapping the second swing arm 326, and an inclined plane is formed between the second overlap surface 366 of the second support plate 36 and the second swing arm 326, which is not only beneficial to improving the overlap area, so that the second swing arm 326 supports the second support plate 36 more stably, but also makes the relative movement of the second support plate 36 and the second swing arm 326 less interfered and smoother.

Referring to fig. 8 and 37 in combination, fig. 37 is a schematic cross-sectional view of the folding assembly 12 of fig. 5 taken along line I-I.

In some embodiments, the first support panel 35 may also overlap a plurality of third support blocks 421 of the top housing 42 and the second support panel 36 may also overlap a plurality of fourth support blocks 422 of the top housing 42 when the folding assembly 12 is in the open position. The other cover bodies (such as the middle cover body 43 or the bottom cover body 44) of the main shaft 31 may also be provided with a third supporting block 421 and a fourth supporting block 422, which may also be used to overlap the first supporting plate 35 and the second supporting plate 36, respectively, and will not be described herein.

In this embodiment, since the third supporting block 421 protrudes in a direction approaching to the main supporting plate 41, the third supporting block 421 and the first supporting block 416 are arranged in a staggered manner, and the third supporting block 421 and the supporting surface 4161 of the first supporting block 416 are close to each other, so that the third supporting block 421 and the first supporting block 416 can better support the first supporting plate 35 at the same time, and the requirement on the structure of the first supporting plate 35 is low, and the supporting structure is easy to realize. Similarly, since the fourth supporting block 422 protrudes in a direction approaching to the main supporting plate 41, the fourth supporting block 422 and the second supporting block 417 are arranged in a staggered manner, and the fourth supporting block 422 and the supporting surface 4171 of the second supporting block 417 are approaching, the fourth supporting block 422 and the second supporting block 417 can better support the second supporting plate 36 at the same time, and the requirements on the structure of the second supporting plate 36 are low, and the supporting structure is easy to realize.

Illustratively, the first support plate 35 has a third overlapping surface 357 overlapping the plurality of third support blocks 421 of the top cover 42, and the third overlapping surface 357 of the first support plate 35 and the plurality of third support blocks 421 of the top cover 42 form an inclined plane fit, which is not only beneficial to improving the overlapping area, so that the plurality of third support blocks 421 of the top cover 42 support the first support plate 35 more stably, but also makes the relative movement between the first support plate 35 and the plurality of third support blocks 421 of the top cover 42 less prone to interference and smoother. The second support plate 36 has a third overlapping surface 367 overlapping the plurality of fourth support blocks 422 of the top cover 42, and the third overlapping surface 367 of the second support plate 36 and the plurality of fourth support blocks 422 of the top cover 42 form an inclined plane fit, which is not only beneficial to improving the overlapping area, so that the plurality of fourth support blocks 422 of the top cover 42 support the second support plate 36 more stably, but also the relative movement of the second support plate 36 and the plurality of fourth support blocks 422 of the top cover 42 is not easy to interfere and smooth.

In this application embodiment, when folding assembly 12 is in the closed state, first backup pad 35 and second backup pad 36 can overlap joint mount and coupling assembling's some moving parts for mount and moving parts can provide rigid support for first backup pad 35 and second backup pad 36, and first backup pad 35 and second backup pad 36 can cooperate, form the better accommodation space of stability with main shaft 31, in order to hold screen 2 better, promote the reliability of screen 2. The following is an illustration.

Referring to fig. 38 to 40 in combination, fig. 38 is a schematic cross-sectional structure of the electronic device 200 shown in fig. 3 taken along the line J-J, fig. 39 is a schematic cross-sectional structure of the electronic device 200 shown in fig. 3 taken along the line K-K, and fig. 40 is a schematic cross-sectional structure of the electronic device 200 shown in fig. 3 taken along the line L-L.

In some embodiments, when the folding assembly 12 is in the closed state, as shown in fig. 38, the first support plate 35 overlaps the first swing arm 325 and the second support plate 36 overlaps the second swing arm 326; as shown in fig. 39, the first support plate 35 overlaps the first fixing frame 321, and the second support plate 36 overlaps the second fixing frame 322; as shown in fig. 40, the first support plate 35 overlaps the first connecting arm 323, and the second support plate 36 overlaps the second connecting arm 324. At this time, the swing arm, the fixing frame and the connecting arm of the connecting assembly can provide rigid support for the support plate, so that the relative positions of the first support plate 35 and the second support plate 36 are stable, a stable support environment is provided for the bending part 22 of the screen 2, the first support plate 35 and the second support plate 36 are easier to maintain the water drop shape of the bending part 22 of the screen 2, and the reliability of the screen 2 is improved.

The above embodiments are merely for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A foldable electronic device (200), characterized in that,

the foldable electronic device (200) comprises a housing device (1) and a screen (2), wherein the housing device (1) comprises a first housing (11), a second housing (13) and a folding assembly (12);

the folding assembly (12) comprises a main shaft (31), a first fixing frame (321), a second fixing frame (322), a first swing arm (325) and a second swing arm (326);

the main shaft (31) comprises a main support plate (41), and the main support plate (41) is provided with a first avoidance gap (414) and a second avoidance gap (415);

the first fixing frame (321) is fixedly connected with the first shell (11), and the second fixing frame (322) is fixedly connected with the second shell (13);

the first swing arm (325) comprises a rotating end (3251) and a sliding end (3252), the rotating end (3251) of the first swing arm (325) comprises a first splicing block (3251 e), the rotating end (3251) of the first swing arm (325) is rotationally connected with the main shaft (31), and the sliding end (3252) of the first swing arm (325) is slidingly connected with the first fixing frame (321);

the second swing arm (326) comprises a rotating end (3261) and a sliding end (3262), the rotating end (3261) of the second swing arm (326) comprises a second splicing block (3261 e), the rotating end (3261) of the second swing arm (326) is rotationally connected with the main shaft (31), and the sliding end (3262) of the second swing arm (326) is slidingly connected with the second fixing frame (322);

When the foldable electronic device (200) is in an open state, the first splicing block (3251 e) is at least partially located in the first avoidance gap (414), the second splicing block (3261 e) is at least partially located in the second avoidance gap (415), and the main support plate (41), the first splicing block (3251 e) and the second splicing block (3261 e) support a part of the screen (2).

2. The foldable electronic device (200) of claim 1, wherein the foldable electronic device comprises,

the screen (2) comprises a first part, a second part and a third part which are sequentially arranged, wherein the first part is fixed on the first shell (11), the third part is fixed on the second shell (13), and the second part is deformed in the unfolding or folding process of the foldable electronic equipment (200);

the main support plate (41), the first tile (3251 e) and the second tile (3261 e) support a second portion of the screen (2) when the foldable electronic device (200) is in an open state.

3. The foldable electronic device (200) according to claim 1 or 2, characterized in that,

the folding assembly (12) further comprises a first support plate (35) and a second support plate (36);

The first supporting plate (35) is connected with the sliding end (3252) of the first swing arm (325) in a sliding manner, and the first supporting plate (35) is connected with the first fixing frame (321) in a rotating manner;

the second supporting plate (36) is slidably connected with a sliding end (3262) of the second swing arm (326), and the second supporting plate (36) is rotatably connected with the second fixing frame (322).

4. The foldable electronic device (200) of claim 3, wherein the foldable electronic device comprises,

when the foldable electronic device (200) is in an open state, the first housing (11), the second housing (13), the first support plate (35), the second support plate (36), the main support plate (41), the first splice block (3251 e) and the second splice block (3261 e) support the screen (2).

5. The foldable electronic device (200) of any one of claims 1 to 4, wherein the spindle (31) has a movable space (41 a), the movable space (41 a) communicates the first avoidance gap (414) and the second avoidance gap (415), and the first splice (3251 e) and the second splice (3261 e) are turned into the movable space (41 a) when the foldable electronic device (200) is in a closed state.

6. The foldable electronic device (200) according to any of claims 1 to 5, characterized in that the main support plate (41) has a support surface (411) for supporting the screen (2); when the foldable electronic device (200) is in an open state, the end face of the first splicing block (3251 e), the end face of the second splicing block (3261 e) and the supporting face (411) of the main supporting plate (41) are flush.

7. The foldable electronic device (200) according to any of claims 3 to 6, wherein when the foldable electronic device (200) is in an open state, the support surface (351) of the first support plate (35), the support surface (361) of the second support plate (36), the support surface (411) of the main support plate (41), the end face of the first splice block (3251 e) and the end face of the second splice block (3261 e) are spliced together to support the screen (2).

8. The foldable electronic device (200) according to any one of claims 3 to 7, wherein the first support plate (35) comprises a first supplementary block (3514) and the second support plate (36) comprises a second supplementary block (3614); when the foldable electronic device (200) is in an open state, the first supplemental block (3514) is at least partially located in the first avoidance gap (414), and the second supplemental block (3614) is at least partially located in the second avoidance gap (415).

9. The foldable electronic device (200) according to any one of claims 1 to 8, wherein the folding assembly (12) further comprises a first connecting arm (323) and a second connecting arm (324);

the first connecting arm (323) comprises a first end (3231) and a second end (3232), the first end (3231) of the first connecting arm (323) is rotationally connected with the main shaft (31), and the second end (3232) of the first connecting arm (323) is rotationally connected with the first fixing frame (321);

The second connecting arm (324) comprises a first end (3241) and a second end (3242), the first end (3241) of the second connecting arm (324) is rotatably connected with the main shaft (31), and the second end (3242) of the second connecting arm (324) is rotatably connected with the second fixing frame (322).

10. The foldable electronic device (200) of claim 9, wherein the spindle (31) has a first arcuate space (41 b) and a second arcuate space (41 c),

the first end (3231) of the first connecting arm (323) comprises a first arc-shaped arm (3233), and the first end (3241) of the second connecting arm (324) comprises a second arc-shaped arm (3243);

a first end (3231) of the first connecting arm (323) is rotatably connected to the spindle (31), comprising: the first arc-shaped arm (3233) is mounted to the first arc-shaped space (41 b);

a first end (3241) of the second connecting arm (324) is rotatably connected to the main shaft (31), comprising: the second arc arm (3243) is mounted to the second arc space (41 c).

11. The foldable electronic device (200) of claim 10, wherein the main support plate (41) further comprises a first avoidance hole (412) and a second avoidance hole (413), the first avoidance hole (412) communicating with the first arc-shaped space (41 b), the second avoidance hole (413) communicating with the second arc-shaped space (41 c);

When the foldable electronic device (200) is in an open state, the end part of the first arc-shaped arm (3233) is at least partially located in the first avoidance hole (412), and the end part of the second arc-shaped arm (3243) is at least partially located in the second avoidance hole (413).

12. The foldable electronic device (200) according to any one of claims 9 to 11, characterized in that,

the second end (3232) of the first connecting arm (323) is rotatably connected with the first fixing frame (321), and comprises: the second end (3232) of the first connecting arm (323) is rotatably connected with the first fixing frame (321) through a first rotating shaft (3281) and a first rotating shaft hole (3234).

A second end (3242) of the second connecting arm (324) is rotatably connected to the second fixing frame (322), comprising: the second end (3242) of the second connecting arm (324) is rotatably connected with the second fixing frame (322) through a second rotating shaft (3282) and a second rotating shaft hole (3244).

13. The foldable electronic device (200) according to any one of claims 1 to 12, wherein,

the rotating end (3251) of the first swing arm (325) is rotationally connected with the main shaft (31) through a first rotating shaft hole (3251 a) and a first rotating shaft (3277), and the rotating end (3261) of the second swing arm (326) is rotationally connected with the main shaft (31) through a second rotating shaft hole (3261 a) and a second rotating shaft (3278).

14. The foldable electronic device (200) according to any one of claims 1 to 13, characterized in that,

the first fixing frame (321) comprises a first sliding groove (3214), and the second fixing frame (322) comprises a second sliding groove (3224);

the sliding end (3252) of the first swing arm (325) is slidably connected to the first fixing frame (321), and includes: the sliding end (3252) of the first swing arm (325) is connected with the first fixing frame (321) in a sliding way through the first sliding groove (3214);

the sliding end (3262) of the second swing arm (326) is slidably connected to the second fixing frame (322), and includes: the sliding end (3262) of the second swing arm (326) is slidably connected with the second fixing frame (322) through the second sliding groove (3224).

15. The foldable electronic device (200) according to any of claims 9 to 14, wherein the first mount (321) comprises a first mating groove (3213) and the second mount (322) comprises a second mating groove (3223);

the connecting section of the first connecting arm (323) comprises a first matching block (3235 a), the first matching block (3235 a) is installed in the first matching groove (3213), wherein the connecting section of the first connecting arm (323) is connected between a first end (3231) of the first connecting arm (323) and a second end (3232) of the first connecting arm (323);

The connecting section of the second connecting arm (324) comprises a second matching block (3245 a), and the second matching block (3245 a) is installed in the second matching groove (3223), wherein the connecting section of the second connecting arm (324) is connected between the first end (3241) of the second connecting arm (324) and the second end (3242) of the second connecting arm (324).

16. The foldable electronic device (200) of claim 15, wherein,

the mating surface (3235 b) of the first mating block (3235 a) contacts the mating wall (3213 a) of the first mating groove (3213);

the mating surface (3245 b) of the second mating block (3245 a) contacts the mating wall (3223 a) of the second mating groove (3223).

17. The foldable electronic device (200) of claim 15 or 16, wherein,

the matching surface (3235 b) of the first matching block (3235 a) and/or the matching wall surface (3213 a) of the first matching groove (3213) are cambered surfaces;

the mating surface (3245 b) of the second mating block (3245 a) and/or the mating wall surface (3223 a) of the second mating groove (3223) are cambered surfaces.

18. The foldable electronic device (200) according to any of claims 3 to 17, wherein the first support plate (35) overlaps the first swing arm (325) and the second support plate (36) overlaps the second swing arm (326) when the foldable electronic device (200) is in an open state.

19. The foldable electronic device (200) according to any one of claims 3 to 18, wherein,

the foldable electronic device (200) is in a closed state:

the first supporting plate (35) is overlapped with at least one of the first fixing frame (321) or the first swing arm (325);

the second support plate (36) overlaps at least one of the second mount (322) or the second swing arm (326).

20. The foldable electronic device (200) according to any one of claims 3 to 18, wherein,

the foldable electronic device (200) is in a closed state:

the first supporting plate (35) overlaps at least one of the first fixing frame (321), the first connecting arm (323) or the first swing arm (325);

the second support plate (36) overlaps at least one of the second fixing frame (322), the second connecting arm (324), or the second swing arm (326).

21. A folding assembly (12), characterized in that the folding assembly (12) comprises a main shaft (31), a first fixing frame (321), a second fixing frame (322), a first swing arm (325) and a second swing arm (326);

when the folding assembly (12) is in an open state, the first splicing block (3251 e) is at least partially located at the first avoiding notch (414), the second splicing block (3261 e) is at least partially located at the second avoiding notch (415), and the main support plate (41), the first splicing block (3251 e) and the second splicing block (3261 e) are spliced to form a support surface.

22. The folding assembly (12) of claim 21 wherein,

when the folding assembly (12) is in an open state, the main support plate (41), the first splicing block (3251 e) and the second splicing block (3261 e) are spliced to form a support surface.

23. The folding assembly (12) of claim 21 or 22 wherein,

24. The folding assembly (12) of claim 23 wherein,

when the folding assembly (12) is in an open state, the first support plate (35), the second support plate (36), the main support plate (41), the first splicing block (3251 e) and the second splicing block (3261 e) are spliced to form a support surface.

25. The folding assembly (12) of any of claims 21 to 24, wherein the main shaft (31) has a movable space (41 a), the movable space (41 a) communicates with the first avoidance gap (414) and the second avoidance gap (415), and the first splice piece (3251 e) and the second splice piece (3261 e) are turned into the movable space (41 a) when the folding assembly (12) is in a closed state.

26. The folding assembly (12) according to any of claims 21 to 25, wherein the end face of the first splice (3251 e), the end face of the second splice (3261 e) and the support face (411) of the main support plate (41) are spliced to form a support face when the folding assembly (12) is in an open state.

27. The folding assembly (12) according to any one of claims 23 to 26, wherein the support surface (351) of the first support plate (35), the support surface (361) of the second support plate (36), the support surface (411) of the main support plate (41), the end surfaces of the first splice block (3251 e) and the end surfaces of the second splice block (3261 e) are spliced to form a support surface when the folding assembly (12) is in an open state.

28. The folding assembly (12) of any of claims 23 to 27 wherein the first support panel (35) includes a first supplemental mass (3514) and the second support panel (36) includes a second supplemental mass (3614); when the folding assembly (12) is in an open state, the first supplemental block (3514) is at least partially positioned in the first avoidance gap (414), and the second supplemental block (3614) is at least partially positioned in the second avoidance gap (415).

29. The folding assembly (12) of any of claims 21 to 28 wherein the folding assembly (12) further comprises a first connecting arm (323) and a second connecting arm (324);

30. The folding assembly (12) of claim 29 wherein the main shaft (31) has a first arcuate space (41 b) and a second arcuate space (41 c),

31. The folding assembly (12) of claim 30 wherein the primary support plate (41) further comprises a first relief hole (412) and a second relief hole (413), the first relief hole (412) communicating with the first arcuate space (41 b) and the second relief hole (413) communicating with the second arcuate space (41 c);

when the folding assembly (12) is in an open state, the end part of the first arc-shaped arm (3233) is at least partially positioned in the first avoidance hole (412), and the end part of the second arc-shaped arm (3243) is at least partially positioned in the second avoidance hole (413).

32. The folding assembly (12) according to any one of claims 29 to 31, wherein,

33. The folding assembly (12) according to any one of claims 21 to 32, wherein,

34. The folding assembly (12) according to any of claims 21 to 33, characterized in that,

35. The folding assembly (12) of any of claims 29 to 34 wherein the first mount (321) comprises a first mating groove (3213) and the second mount (322) comprises a second mating groove (3223);

36. The folding assembly (12) of claim 35 wherein,

37. The folding assembly (12) of claim 35 or 36, wherein,

38. The folding assembly (12) of any of claims 23 to 37 wherein the first support plate (35) overlaps the first swing arm (325) and the second support plate (36) overlaps the second swing arm (326) when the folding assembly (12) is in an open state.

39. The folding assembly (12) according to any one of claims 23 to 38, wherein,

-said folding assembly (12) being in a closed condition:

40. The folding assembly (12) according to any one of claims 23 to 38, wherein,

-said folding assembly (12) being in a closed condition: