CN114006963B

CN114006963B - Electronic equipment, folding assembly and shell device

Info

Publication number: CN114006963B
Application number: CN202111217370.7A
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: 2022-08-02
Anticipated expiration: 2041-10-19
Also published as: WO2023065730A1; CN115996256A; CN115665289A; CN115996257A; CN114006963A

Abstract

The application discloses electronic equipment, folding assembly and shell device. The electronic device is of a foldable structure and has 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 the movement of the folding assembly. Folding assembly has the main shaft, be located two backup pads and a plurality of moving member of main shaft both sides, and when electronic equipment was in the open mode, the tip concatenation of main shaft, two backup pads and a plurality of moving member to provide a continuous, little or the no support environment who breaks the hole in broken hole, make folding assembly can support the portion of bending of screen reliably, reduce the portion of bending of screen and take place sunken risk under pressing or striking, improve the reliability of screen.

Description

Electronic equipment, folding assembly and shell device

Technical Field

The present application relates to the field of foldable device technology, and more particularly, to an electronic device, a folding assembly, and a housing apparatus.

Background

In recent years, screens have been widely used in various foldable electronic devices due to their characteristics of being light, thin, and not fragile. The foldable electronic equipment further comprises a shell device used for bearing the screen, the shell device comprises a first shell, a second shell and a folding assembly connected with the first shell and the second shell, the first shell and the second shell can be relatively unfolded to be in an open state or relatively folded to be in a closed state through movement of the folding assembly, and the screen is unfolded or folded along with the shell device.

However, because the folding assembly is usually provided with a plurality of broken holes so as to facilitate the movement of the moving part, the folding assembly is difficult to provide a relatively complete supporting environment for the bending part of the screen, so that the bending part of the screen is easy to dent and damage due to pressing operation or collision of a user in an opening state, and the service life of the screen is shortened.

Disclosure of Invention

The application provides an electronic equipment, folding assembly and casing device, electronic equipment includes the screen and bears the casing device of screen, and casing device is including the first casing, folding assembly and the second casing that connect gradually, and folding assembly can provide a comparatively complete support environment for the portion of bending of electronic equipment's screen, and the risk that takes place to damage when making the portion of bending of screen pressed or collided 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 relatively unfolded or relatively folded through the movement of the folding assembly. When the shell device is relatively unfolded, the electronic equipment is in an open state, the screen is unfolded, and the screen can be displayed in a full screen mode, so that the electronic equipment has a large display area, and the watching experience and the operating experience of a user are improved. When the shell device is relatively folded, the electronic equipment is in a closed state, the plane size of the electronic equipment is small, and the electronic equipment is convenient for a user to carry and store.

The screen includes the first portion of bending of arranging in proper order, the portion of bending and the second portion of bending of second, and first non-portion of bending is fixed in first casing, and the second non-portion of bending is fixed in the second casing, and at the relative in-process that expandes or fold relatively of first casing and second casing, the portion of bending takes place to be out of shape.

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 includes the main tributary fagging, and the main tributary fagging is equipped with first dodge breach and second and dodges the breach. 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 rotates to be connected with the main shaft, and the first avoiding notch is used for avoiding the first swing arm, so that interference does not occur between the first swing arm and the main support plate, and the smooth and reliable movement of the mechanism is ensured. The second swing arm includes rotation end and slip end, and the rotation end of second swing arm includes the second splice piece, and the rotation end of second swing arm rotates and connects the main shaft, and the breach is dodged to the second for do not take place to interfere between second swing arm and the main tributary fagging, in order to ensure smooth and easy and the reliability of mechanism's motion. The sliding end of the first swing arm is connected with the first fixing frame in a sliding mode, and the sliding end of the second swing arm is connected with the second fixing frame in a sliding mode.

When the electronic equipment is in an open state, at least part of the first splicing block is located in the first avoidance notch, at least part of the second splicing block is located in the second avoidance notch, the first supporting plate and the second supporting plate are respectively located on 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 assembly can provide a comparatively complete support environment for the portion of bending of screen, makes the portion of bending of screen receive when pressing or offeing, and it is less to take place obvious sunken or the risk of damaging to improve the reliability of screen.

In some possible implementation manners, the main shaft is provided with a movable space, the movable space is communicated with the first avoidance notch and the second avoidance notch, and when the electronic equipment is in a closed state, the first splicing block and the second splicing block are switched into the movable space. At the moment, the connecting section of the first swing arm and the connecting section of the second swing arm can be close to each other through the first avoidance notch and the second avoidance notch, and the distance between the first avoidance notch and the second avoidance notch is small, so that the folding assembly integrally forms a water-drop-like accommodating 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 surfaces of the first splicing blocks, the second splicing blocks and the supporting surface of the main supporting plate are flush. At the moment, the end face of the first splicing block, the end face of the second splicing block and the supporting face of the main supporting plate are located on the same plane, the bending portion of the screen is supported together, a complete and smooth supporting environment is provided for the bending portion of the screen, and therefore the reliability of the screen is improved.

In some possible implementation manners, when the electronic device is in the open state, the supporting surface of the first supporting plate, the supporting surface of the second supporting plate, the supporting surface of the main supporting plate, the end surface of the first splicing block, and the end surface of the second splicing block are spliced, that is, the supporting surface of the folding assembly is formed by jointly splicing the supporting surface of the main supporting plate, the end surface of the first splicing block, the supporting surface of the first supporting plate, the end surface of the second splicing block, and the supporting surface of the second supporting plate. At the moment, the supporting surface of the folding assembly is not provided with broken holes or is small in broken holes, the supporting surface of the folding assembly 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, one or more shallow grooves are provided on the supporting surface of the first supporting plate, and these grooves may be used, but not limited to, for coating or installing an adhesive layer, by which the bent portions of the screen are connected. It can be understood that the depth of the groove of the part is very small, and the area of the screen corresponding to the part of the groove can not be depressed obviously when being subjected to external pressure (such as the 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, at least part of the first supplement block is located in the first avoidance 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. Similarly, the second supplementary block can be at least partially positioned in the second avoidance notch, 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, the main support plate further includes a first avoidance hole and a second avoidance hole, the first avoidance hole communicates with the first arc space, and the second avoidance hole communicates with the second arc space.

The folding assembly also includes a first connecting arm and a second connecting arm. First connecting arm includes first end and second end, and the first end of first connecting arm includes first arc arm, and first arc arm is installed in first arc space to make the first end of first connecting arm rotate and connect the main shaft, the second end of first connecting arm rotates and connects first mount. 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, the second arc-shaped arm is installed in the second arc-shaped space, so that the first end of the second connecting arm is connected with the main shaft in a rotating mode, and the second end of the second connecting arm is connected with the second fixing frame in a rotating mode.

When electronic equipment is in the open mode, the tip of first arc arm is at least partially located first hole of dodging, and at this moment, the design in first hole of dodging makes first arc arm can have great radian, and the first arc arm is bigger with the first arc space's of main tributary fagging cooperation radian (also the radian that first arc arm stretched into first arc space), and relative motion between them is more steady. In addition, the risk that the first arc-shaped arm is separated from the main supporting plate can be reduced, so that the connection relationship between the first arc-shaped arm and the main supporting plate is more reliable. The tip of second arc arm is located the second at least partially and dodges the hole, and at this moment, the design that the hole was dodged to the second makes the second arc arm can have great radian, and the second arc arm is bigger with the cooperation radian in the second arc space of main tributary fagging, and relative motion between them is more steady. In addition, the risk that the second arc-shaped arm is separated from the main supporting plate can be reduced, so that the connection relationship between the second arc-shaped arm and the main supporting plate is more reliable. In some possible implementations, the first protrusion of the first arc-shaped arm is at least partially located in the first avoiding hole of the main support plate, and the second protrusion of the second arc-shaped arm is at least partially located in the second avoiding hole of the main support plate. When the folding assembly is in an opening state, the first avoiding hole can be filled up due to the fact that the first convex block is at least partially located in the first avoiding hole, the second avoiding hole can be filled up due to the fact that the second convex block is at least partially located in the second avoiding hole, and therefore the main support plate can provide a complete support environment for the bending portion of the screen, and the reliability of the screen is improved.

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

In some possible implementations, the end surface of the first bump may be flush with the supporting surface of the main supporting plate to achieve splicing, and the end surface of the second bump may be flush with the supporting surface of the main supporting plate to achieve splicing, so as to provide a more complete and flat supporting environment.

In some possible implementation manners, the end surface of the first bump is slightly recessed from the supporting surface of the main supporting plate to meet the connection requirement of the first arc-shaped arm and the supporting requirement of the screen, at this time, because the opening area of the first avoiding hole is smaller, and the recessed degree of the end surface of the first bump relative to the supporting surface of the main supporting plate is shallower, when the region of the bending portion of the screen corresponding to the first avoiding hole is pressed or collided, the risk of obvious recess or damage is smaller, and the reliability of the screen is higher.

The terminal surface of second lug is recessed slightly for the holding surface of main backup pad to compromise the connection demand of second arc arm and the support demand of screen, at this moment, because the opening area in hole is kept away to the second is less, and the recessed degree of the terminal surface of second lug for the holding surface of main backup pad is shallower, so the portion of bending of screen receives when pressing or colliding corresponding to the region in hole is kept away to the second, takes place obviously sunken or the risk of damaging less, and the reliability of screen is higher.

In some possible implementation manners, through structural design or size design and the like, the matching radian of the first arc-shaped arm and the second arc-shaped arm with the main support plate is enough, at the moment, the first avoidance hole and the second avoidance hole are not arranged on the main support plate, 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/is rotatably connected to the main shaft by a connection mode of the solid shaft, and the second end of the first connecting arm and/or the second end of the second connecting arm are/is rotatably connected to the first fixing frame and the second fixing frame by a connection mode of the virtual shaft.

In some possible implementations, the first fixing frame has a first fitting groove having a fitting wall surface. The connecting section of the first connecting arm includes a first mating block that includes a mating surface facing the second end of the first connecting arm. The first matching block is arranged in the first matching groove, and the matching surface of the first matching block contacts the matching wall surface of the first matching groove. The contact structure of fitting surface and cooperation wall has increased the area of contact of cooperation piece with the mount to increase the stability of being connected of linking arm and mount, improved folding assembly's reliability.

In some possible implementations, the mating surface of the first mating block and/or the mating wall surface of the first mating groove are/is an arc surface, and the mating surface of the first mating block and the mating wall surface of the first mating groove form an arc overlap 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 supporting plate includes a first supporting block and a second supporting block, and the first supporting block and the second supporting block are respectively protrudingly disposed at both sides of the main supporting plate. When the electronic equipment is in an opening state, the first supporting plate is in lap joint with the first supporting block, and the second supporting plate is in lap joint with the second supporting block. When folding assembly was in the open mode, because the first supporting shoe of main tributary backup pad can provide the rigidity for first backup pad and support, the second supporting shoe can provide the rigidity for the second backup pad and support, consequently can improve the local rigidity of first backup pad and second backup pad through the overlap joint design, reduces 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 has a first overlapping surface overlapping the supporting surface of the first supporting block, and an inclined surface is formed between the first overlapping surface of the first supporting plate and the supporting surface of the first supporting block, so that the overlapping area is favorably increased, and the first supporting block can support the first supporting plate more stably. The second backup pad has the first faying face of the holding surface of overlap joint second supporting shoe, forms the inclined plane cooperation between the first faying face of second backup pad and the holding surface of second supporting shoe, is favorable to improving the overlap joint area for the second supporting shoe is more stable to the support of second backup pad.

In some possible implementations, the main shaft further includes a cover fixed to a side of the main supporting plate facing away from the supporting surface of the main supporting plate, and the cover further includes a third supporting block and a fourth supporting block, and the third supporting block and the fourth supporting block are respectively protrudingly disposed on two sides of the cover. When the electronic equipment is in an opening state, the first supporting plate is in lap joint with the third supporting block, and the second supporting plate is in lap joint with the fourth supporting block. The lap joint structure enables the supporting block to support the supporting plate stably, and the reliability of the folding assembly is improved.

In some possible implementation manners, the first supporting plate is provided with a third faying surface for lapping the plurality of third supporting blocks of the cover body, and the third faying surface of the first supporting plate and the plurality of third supporting blocks of the cover body are matched in an inclined plane, so that the lapping area is favorably increased, the plurality of third supporting blocks of the cover body support the first supporting plate more stably, and the first supporting plate and the plurality of third supporting blocks of the cover body can move relatively less easily and smoothly. The second backup pad has the third faying surface of a plurality of fourth supporting shoes of the overlap joint cover body, forms the inclined plane cooperation between the third faying surface of the second backup pad and a plurality of fourth supporting shoes of the cover body, not only is favorable to improving the overlap joint area for a plurality of fourth supporting shoes of the cover body are more stable to the support of second backup pad, can also make the relative motion of a plurality of fourth supporting shoes of the second backup pad and the cover body difficult interference, more smooth and easy.

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

In some possible implementation manners, the first supporting plate is provided with a third faying surface for lapping the plurality of third supporting blocks of the cover body, and the third faying surface of the first supporting plate and the plurality of third supporting blocks of the cover body are matched in an inclined plane, so that the lapping area is favorably increased, the plurality of third supporting blocks of the cover body support the first supporting plate more stably, and the first supporting plate and the plurality of third supporting blocks of the cover body can move relatively less easily and smoothly.

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 first swing arm can provide the rigidity for first backup pad and support, the second swing arm can provide the rigidity for the second backup pad and support, consequently can improve the local rigidity of first backup pad and second backup pad through the overlap joint design, reduces pressing virtual position 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 lapping surface for lapping the first swing arm, and an inclined surface is formed between the second lapping surface of the first supporting plate and the first swing arm to match, so that the lapping area is favorably improved, the first swing arm is more stable for supporting the first supporting plate, and the first supporting plate and the first swing arm are difficult to interfere and smoother in relative movement. The second backup pad has the second faying surface of overlap joint second swing arm, forms the inclined plane cooperation between the second faying surface of second backup pad and the second swing arm, not only is favorable to improving the overlap area for the second swing arm is more stable to the support of second backup pad, can also make the relative motion of second backup pad and second swing arm difficult interference, more smooth and easy.

In some possible implementations, when the electronic device is in the closed state, the first supporting plate overlaps the first fixing frame, the first swing arm, or the first connecting arm, and the second supporting plate overlaps the second fixing frame, the second swing arm, or the second connecting arm. At this moment, swing arm, mount and the linking arm homoenergetic of coupling assembling can provide the rigid support for the backup pad for the relative position of first backup pad and second backup pad is stable, provides stable support environment for the portion of bending of screen. First backup pad and second backup pad can cooperate with the main shaft, form the better accommodating space of stability, change the water droplet form of the portion of bending of maintaining the screen, are favorable to improving the reliability of screen.

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

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 surfaces of the first splicing blocks, the second splicing blocks and the supporting surface of the main supporting plate are flush. At the moment, the end face of the first splicing block, the end face of the second splicing block and the supporting face of the main supporting plate are located on the same plane, the bending portion of the screen is supported together, and a relatively complete and smooth supporting environment is provided for the bending portion of the screen so as to improve the reliability of the screen.

The folding assembly also includes a first connecting arm and a second connecting arm. First connecting arm includes first end and second end, and the first end of first connecting arm includes first arc arm, and first arc arm is installed in first arc space to make the first end of first connecting arm rotate and connect the main shaft, the second end of first connecting arm rotates and connects first mount. 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, the second arc-shaped arm is installed in a second arc-shaped space, so that the first end of the second connecting arm is connected with the main shaft in a rotating mode, and the second end of the second connecting arm is connected with the second fixing frame in a rotating mode.

When electronic equipment is in the open mode, the tip of first arc arm is at least partially located first hole of dodging, and at this moment, the design in first hole of dodging makes first arc arm can have great radian, and the first arc arm is bigger with the first arc space's of main tributary fagging cooperation radian (also the radian that first arc arm stretched into first arc space), and relative motion between them is more steady. In addition, the risk that the first arc-shaped arm is separated from the main supporting plate can be reduced, so that the connection relationship between the first arc-shaped arm and the main supporting plate is more reliable. The tip of second arc arm is located the second at least part and dodges the hole, and at this moment, the design in hole is dodged to the second makes the second arc arm can have great radian, and the second arc arm is bigger with the cooperation radian in the second ARC space of main tributary fagging, and relative motion between them is more steady. In addition, the risk that the second arc-shaped arm is separated from the main supporting plate can be reduced, so that the connection relationship between the second arc-shaped arm and the main supporting plate is more reliable. In some possible implementations, the first protrusion of the first arc-shaped arm is at least partially located in the first avoiding hole of the main support plate, and the second protrusion of the second arc-shaped arm is at least partially located in the second avoiding hole of the main support plate. When the folding assembly is in an opening state, the first avoiding hole can be filled up due to the fact that the first convex block is at least partially located in the first avoiding hole, the second avoiding hole can be filled up due to the fact that the second convex block is at least partially located in the second avoiding hole, and therefore the main support plate can provide a complete support environment for the bending portion of the screen, and the reliability of the screen is improved.

In some possible implementation manners, the end face of the first bump is slightly recessed from the supporting surface of the main supporting plate to meet the connection requirement of the first arc-shaped arm and the supporting requirement of the screen, at this time, because the opening area of the first avoiding hole is smaller, and the recessed degree of the end face of the first bump from the supporting surface of the main supporting plate is shallower, when the region of the bending portion of the screen corresponding to the first avoiding hole is pressed or collided, the risk of occurrence of obvious recess or damage is smaller, and the reliability of the screen is higher.

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

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

In some possible implementations, the third support block protrudes toward a direction close to the main support plate, and the third support block and the first support block are arranged in a staggered manner. Because the third supporting block is protruding to the direction that is close to the main tributary backup pad, third supporting block and first supporting block dislocation arrangement, 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 simultaneously better to the structural requirement to first backup pad is lower, and bearing structure easily realizes.

In some possible implementation modes, the first supporting plate is provided with a second lapping surface for lapping the first swing arm, and the second lapping surface of the first supporting plate and the first swing arm are matched in an inclined plane manner, so that the lapping area is favorably improved, the first swing arm is more stable for supporting the first supporting plate, and the first supporting plate and the first swing arm are difficult to interfere and smooth in relative motion. The second backup pad has the second faying surface of overlap joint second swing arm, forms the inclined plane cooperation between the second faying surface of second backup pad and the second swing arm, not only is favorable to improving the overlap area for the second swing arm is more stable to the support of second backup pad, can also make the relative motion of second backup pad and second swing arm difficult interference, more smooth and easy.

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 a first fixing frame of the folding assembly is fixedly connected with the first shell, a 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 the movement of the folding assembly. The shell device can provide a relatively complete supporting environment, so that the risk of damage of the supported components is low when the supported 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 disclosure;

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

FIG. 3 is a schematic structural diagram of the electronic device shown in FIG. 1 in a closed state;

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

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

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

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

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

FIG. 9 is a cross-sectional view of the spindle of FIG. 8 taken along line A-A;

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

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

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

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

FIG. 14 is a schematic structural view of the second linking arm shown in FIG. 12;

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

fig. 16 is a schematic structural view of the second swing arm shown in fig. 12;

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

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

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

FIG. 19 is a schematic structural view of the first fixing frame shown in FIG. 12;

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

FIG. 21 is a schematic structural view of the second fixing frame shown in FIG. 12;

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

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

FIG. 24 is a schematic view of the top coupling assembly of FIG. 11 assembled to the spindle;

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 support plate and the second support plate of FIG. 6 at another angle;

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

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

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

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

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

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

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

fig. 40 is a schematic cross-sectional view of the electronic device shown in fig. 3 taken along the line 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 the terms "mounted" and "connected" are to be interpreted broadly, unless explicitly stated or limited otherwise, and for example, "connected" may or may not be detachably connected; may be directly connected or may be indirectly connected through an intermediate. The term "fixedly connected" means that they are connected to each other and their relative positional relationship is not changed after the connection. It is understood that when the component a is fixedly connected to the component C through the component B, the relative positional relationship due to the deformation of the component a, the component B, and the component C itself is allowed to vary. "rotationally coupled" means coupled to each other and capable of relative rotation after being coupled. "slidably connected" means connected to each other and capable of sliding relative to each other after being connected. The two components are integrated through an integral forming process, namely, in the process of forming one of the two components, the component is connected with the other component, and the two components do not need to be connected together through a mode of reprocessing (such as bonding, welding, buckling connection and screw connection).

The directional terms used in the embodiments of the present application, such as "upper," "lower," "side," "top," "bottom," etc., are used solely in reference to the orientation of the figures, and thus are used for better and clearer illustration and understanding of the embodiments of the present application, rather than to indicate or imply that the device or element so referred to must be oriented, constructed and operated in a particular orientation, and therefore should not be considered limiting of the embodiments of the present application.

The term "plurality" means at least two. The term "and/or" is an associative relationship that describes an associated object, meaning that three relationships may exist, e.g., A and/or B, may mean: a exists alone, A and B exist simultaneously, 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 defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

The application provides an electronic device, which is a foldable structure and has an opening state and a closing 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 component 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 component, and the screen is unfolded or folded along with the shell device. The electronic device is a screen fold-in device.

Folding assembly has the main shaft, be located two backup pads and a plurality of moving member of main shaft both sides, and when electronic equipment was in the open mode, the tip concatenation of main shaft, two backup pads and a plurality of moving member to provide a support environment that levels, continuous, brokenly the hole little or do not have brokenly the hole, make folding assembly can reliably support the portion of bending of screen, reduce the portion of bending of screen and take place sunken risk under pressing or striking, improve the reliability of screen.

In addition, when electronic equipment is in the open mode, main shaft and/or a plurality of moving part can also provide structural support for the backup pad is pressed virtual position little, is warp for a short time, has further improved the reliability of screen.

The electronic device can be a foldable electronic product such as a mobile phone, a tablet computer, a notebook computer and a wearable device. In the embodiment of the present application, an electronic device is described 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 provided in an embodiment of the present application when the electronic device 200 is in an open state, fig. 2 is a schematic structural diagram of the electronic device 200 shown in fig. 1 when the electronic device 200 is in an intermediate state, and fig. 3 is a schematic structural diagram of the electronic device 200 shown in fig. 1 when the electronic device 200 is in a closed state. In some embodiments, the electronic device 200 is a foldable device having an open state and a closed state. Illustratively, the electronic device 200 includes a housing device 1 and a screen 2, and the screen 2 is 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 arrangement 1 may also be folded to 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 the opened state and the closed state. The screen 2 is a bendable structure, the screen 2 moves along with the housing device 1, and the housing device 1 can drive the screen 2 to unfold or fold, so that the electronic device 200 can unfold or fold 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 apparatus 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 a full screen, so that the electronic device 200 has a larger display area to improve the viewing experience and the operating 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 comprise a plurality of components (not shown in the figures), which are mounted inside the housing arrangement 1. The plurality of components may include, for example, a processor, internal memory, an external memory interface, a 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, a button, a motor, an indicator, and a Subscriber Identity Module (SIM) card interface, among others. Where electronic device 200 may have more or fewer components than described above, two or more components may be combined, or a different configuration of components may be provided. 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 is understood that, when the user holds the electronic device 200, the position of the earphone 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 up and down.

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

In some embodiments, the housing device 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 can move 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 also relatively unfolded or relatively folded to an intermediate state. It should be understood that when the electronic device 200 is in the open state, the screen 2, the housing device 1 and each component of the housing device 1 are correspondingly in the open state; when the electronic device 200 is in the closed state, the screen 2, the housing device 1 and each component of the housing device 1 are correspondingly in the closed state; when the electronic device 200 is in the intermediate state, the screen 2, the housing device 1, and the components of the housing device 1 are in the intermediate state.

As shown in fig. 1, when the electronic device 200 is in an open state, an 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 state, at this time, the first housing 11 may be spliced with the second housing 13, and the splicing of the first housing 11 and the second housing 13 includes a case where the two are abutted against each other, and may also include a case where a small gap exists between the two. In this embodiment, the first housing 11 and the second housing 13 are spliced to each other, so that the housing device 1 can be prevented from being folded when being unfolded, the stress on the screen 2 is reduced, and the reliability of the screen 2 and the electronic device 200 is improved.

In other embodiments, when the electronic device 200 is in the open state, the angle between the first housing 11 and the second housing 13 may also deviate slightly from 180 °, such as 165 °, 177 °, or 185 °, which is also considered to be that the first housing 11 and the second housing 13 are flattened. An included angle between the first housing 11 and the second housing 13 is defined as an included angle between an upper side of the first housing 11 and an upper side of the second housing 13.

As shown in fig. 3, when the electronic device 200 is in the closed state, an 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 there is a small gap between the first casing 11 and the second casing 13, some foreign objects (e.g., nails, paper clips, glass cullet, etc.) outside the electronic device 200 may not enter between the first casing 11 and the second casing 13 through the gap, so as to prevent the foreign objects from damaging the screen 2, thereby improving the reliability of the electronic device 200.

It is understood 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 embodiment of the present application is only to briefly describe part of the structures of the first housing 11 and the second housing 13, and is also schematically illustrated in the drawings, and the embodiment of the present application is not to 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, the screen 2 includes a first non-bending portion 21, a bending portion 22, and a second non-bending portion 23 sequentially arranged. First non-bending portion 21 fixed connection first casing 11, second non-bending portion 23 fixed connection second casing 13, bending portion 22 corresponds folding assembly 12 setting, and at the in-process that first casing 11 and second casing 13 are folding relatively or expand relatively, bending portion 22 takes place to be out of shape. 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, the second shell 13 drives the second non-bending portion 23 to move, and 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 supporting surface 111 for supporting the screen 2, and the second housing 13 includes a supporting surface 131 for supporting the screen 2. For example, the first non-bending portion 21 of the screen 2 may be fixedly connected to the supporting surface 111 of the first housing 11. For example, the first non-bent portion 21 may be bonded to the supporting surface 111 of the first housing 11 by an adhesive layer. The second non-bent 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 a glue 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 relatively folded or unfolded, the relative folding and unfolding actions 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 housing 11 and the second housing 13 are relatively unfolded to the open state, the first non-bending portion 21, the bending portion 22, and the second non-bending portion 23 of the screen 2 are relatively flattened, and the screen 2 is in the 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 the bent state. As shown in fig. 3, when the first housing 11 and the second housing 13 are folded to the closed state, the screen 2 is located inside the folding device and is in the folded state. For details of the folded configuration of the screen 2, reference may be made to the following description.

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. Wherein, the rigidity of the part of the backup pad that is located bending portion 22 is less than the rigidity of the part that is located first non-bending portion 21 and second non-bending portion 23, that is, the rigidity of the part of the backup pad that is located bending portion 22 is less, the rigidity of the part of the backup pad that is located first non-bending portion 21 and second non-bending portion 23 is great, make screen 2 both can compromise structural rigidity, in order to have higher roughness, the bending portion 22 of screen 2 also can be buckled smoothly simultaneously.

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

Wherein, the display module assembly can be integrated with display function and touch sensing function. The display function of the screen 2 is to display images, videos, and the like, and the touch sensing function of the screen 2 is to sense a touch action of a user to realize human-computer interaction. The display module may be a 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 (FLED) display, a MiniLED display, a Micro led display, a Micro-OLED display, a quantum dot light-emitting diode (QLED) display, or the like.

The following illustrates an implementation of the folding assembly 12.

Referring to fig. 5 to 7, 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 spindle 31 and the plurality of connecting 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 linkage assemblies (32, 33, 34) are each coupled to the main shaft 31, and a plurality of linkage assemblies (32, 33, 34) are each movable to expand or collapse relative to the main shaft 31. The plurality of connecting components (32, 33, 34) are also connected between the first shell 11 and the second shell 13, and when the plurality of connecting components (32, 33, 34) move relative to the main shaft 31, the first shell 11 and the second shell 13 move relative to the main shaft 31 so as to be relatively unfolded or relatively folded. Illustratively, 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 connecting assembly 32, the middle connecting assembly 33 and the bottom connecting assembly 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 end to the bottom end thereof.

In the present embodiment, the top connecting assembly 32, the middle connecting assembly 33 and the bottom connecting assembly 34 cooperatively move, so that the first housing 11 and the second housing 13 move more smoothly and reliably when rotating relative to the main shaft 31.

The top connection assembly 32 and the bottom connection assembly 34 may have the same structure, a mirror-symmetric structure, a central-symmetric structure, or other different structures, and the top connection assembly 32 and the bottom connection assembly 34 are illustrated as a mirror-symmetric structure in the embodiment of the present application, and the top connection assembly 32 is mainly described below. The structure of the middle connecting assembly 33 may be the same as, partially the same as, or completely different from the structure of the top connecting assembly 32, and this is not strictly limited in the embodiments of the present application. In other embodiments, the folding assembly 12 may not have the middle connecting assembly 33, or a plurality of middle connecting assemblies 33 may be provided, which is not strictly limited in the embodiments of the present application.

Wherein the top attachment assembly 32 may include a plurality of moving members and a plurality of stationary members. Wherein, during the movement of the top connecting assembly 32, the fixed member is fixed relative to the mounting structural member (such as the main shaft 31, the first housing 11 or the second housing 13) of the top connecting assembly 32, and the moving member can move relative to the fixed member.

In some embodiments, the main shaft 31 includes a main support plate 41 and a plurality of housings (42, 43, 44), which (42, 43, 44) may include a top housing 42, a middle housing 43, and a bottom housing 44. The top cover 42, the middle cover 43 and the bottom cover 44 are all positioned below the main supporting plate 41; the top cover body 42 is fixed on the top of the main support plate 41, and forms a top space for installing the top connecting assembly 32 with the main support plate 41; the middle cover body 43 is fixed in the middle of the main support plate 41, and forms a middle space for installing the middle connecting assembly 33 with the main support plate 41; 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 installing the bottom connecting assembly 34. In the embodiment, the number, structure, position and the like of the plurality of covers (42, 43, 44) are all arranged corresponding to the plurality of connecting components (32, 33, 34).

Illustratively, the first support plate 35 is located on a side of the main support plate 41 of the main shaft 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 main shaft 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 support the bent portion 22 of the screen 2 together, so as 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 shells (42, 43, 44) forms a support surface 411. The support surface 411 of the main support plate 41 is used 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 upper side of the first support plate 35 facing away from the plurality of covers (42, 43, 44) forms a support surface 351. The upper side of the second support plate 36 facing away from the plurality of covers (42, 43, 44) forms a support surface 361. 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 to provide a flat supporting environment for the bending portion 22 of the screen 2 together, so as to improve the reliability of the screen 2. It can be understood that, in the embodiment of the present application, when the two surfaces are spliced, a scheme that the two surfaces are connected may be included, and a scheme that a small gap exists between the two surfaces but the splicing effect is exhibited as a whole may also be included.

Illustratively, the back cover 37 is positioned below the main shaft 31 and fixedly coupled to the main shaft 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 cover the back cover 37 together, 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 appearance consistency and aesthetic property of the electronic device 200 and facilitate a user to hold the electronic device 200.

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

In some embodiments, the main supporting plate 41 may be provided with multiple sets of avoiding spaces, which are respectively arranged at the top, middle and bottom of the main supporting plate 41, and are in one-to-one correspondence with the top connecting assembly 32, the middle connecting assembly 33 and the bottom connecting assembly 34, so as to avoid moving members of the multiple connecting assemblies (32, 33, 34) during the moving process of the folding assembly 12, so that the moving process of the folding assembly 12 is smooth and highly reliable.

The single set of 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 hole 412 and the first avoidance gap 414 are disposed near one side of the main support plate 41, and the second avoidance hole 413 and the second avoidance gap 415 are disposed near the other side of the main support plate 41. The first avoiding notch 414 and the second avoiding notch 415 are located on two side edges of the main support plate 41, and the first avoiding hole 412 and the second avoiding hole 413 are located in the middle area 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 respect to the first avoiding holes 412. The number of the first avoidance gaps 414 can be one or more, for example, one in the illustrated embodiment, and the second avoidance gaps 415 can be symmetrically disposed with respect to the first avoidance gaps 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 are protrudingly provided at one side of the main support plate 41, and the plurality of second support blocks 417 are protrudingly provided at the other side of the main support plate 41, that is, the plurality of first support blocks 416 and the plurality of second support blocks 417 are protrudingly provided at both sides of the main support plate 41, respectively. The first support blocks 416 and the first avoidance gaps 414 are located on the same side of the main support plate 41, and the second support blocks 417 and the second avoidance gaps 415 are located on the same side of the main support plate 41.

Illustratively, the first and second support blocks 416, 417 each have a support surface, and the support surfaces 4161, 4171 of the first and second support blocks 416, 417 face the same direction 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 recessed with respect 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 with respect to the support surfaces 4161 of the first support block 416 and the support surface 4171 of the second support block 417.

Wherein the supporting surface 4161 of the first supporting block 416 may be obliquely disposed with respect to the supporting surface 411 of the main supporting plate 41, and the supporting surface 4171 of the second supporting block 417 may be obliquely disposed with respect to the supporting surface 411 of the main supporting plate 41. For example, the mutually distant ends of the support face 4161 of the first support block 416 and the support face 4171 of the second support block 417 deflect away from the support face 411 of the main support plate 41.

Illustratively, the main support plate 41 further includes a plurality of first receiving slots 418 and a plurality of second receiving slots 419, wherein the plurality of first receiving slots 418 are concavely disposed on one side of the main support plate 41, and the plurality of second receiving slots 419 are concavely disposed on the other side of the main support plate 41. The first receiving grooves 418 and the first avoiding notches 414 are located on the same side of the main support plate 41, and the second receiving grooves 419 and the second avoiding notches 415 are located on the same side of the main support plate 41.

For example, as shown in FIG. 7, top shell 42 may have a generally concave middle portion and a raised two side shell configuration. The top cover 42 is provided with a plurality of mating structures toward 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.

For example, as shown in fig. 7 and 8, the top cover 42 may further include a plurality of third supporting blocks 421 and a plurality of fourth supporting blocks 422, the plurality of third supporting blocks 421 are protrudingly disposed on one side of the top cover 42, and the plurality of fourth supporting blocks 422 are protrudingly disposed on the other side of the top cover 42, that is, the plurality of third supporting blocks 421 and the plurality of fourth supporting blocks 422 are protrudingly disposed on both sides of the top cover 42, respectively.

The third supporting blocks 421 and the first supporting blocks 416 are located on the same side of the main shaft 31, and the third supporting blocks 421 protrude toward the main supporting plate 41, at least partially extend into the first receiving slots 418 of the main supporting plate 41, and are arranged in a staggered manner with respect to the first supporting blocks 416. The third supporting block 421 has a supporting surface, the supporting surface of the third supporting block 421 is in the same orientation as the supporting surface 411 of the main supporting plate 41, and the supporting surface of the third supporting block 421 sinks with respect to the supporting surface 411 of the main supporting plate 41.

The fourth supporting blocks 422 and the second supporting blocks 417 are located on the same side of the main shaft 31, and the fourth supporting blocks 422 protrude toward the main supporting plate 41, at least partially extend into the second receiving groove 419 of the main supporting plate 41, and are staggered from the second supporting blocks 417. The fourth supporting block 422 has a supporting surface, the supporting surface of the fourth supporting block 422 is in the same orientation as the supporting surface 411 of the main supporting plate 41, and the supporting surface of the fourth supporting block 422 is sunken relative to the supporting surface 411 of the main supporting 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 middle cover 43 and the bottom cover 44 are not described in detail in this embodiment of the application.

In some embodiments, as shown in fig. 7, the main shaft 31 may further include multiple sets of fasteners 311, the multiple sets of fasteners 311 corresponding to multiple covers (42, 43, 44) one-to-one for fixing the multiple 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 plurality of cover bodies (42, 43, 44) are provided with fastening holes, one side of the main support plate 41 facing the plurality of cover bodies (42, 43, 44) can also be provided with fastening holes, and the fastening piece 311 passes through the fastening holes of the plurality of cover bodies (42, 43, 44) and extends into the fastening holes of the main support plate 41 to fasten the cover bodies and the main support plate 41. The fastening member 311 may be a screw, a bolt, a rivet, or the like.

Referring to fig. 8 and 9, fig. 9 is a schematic cross-sectional view of the spindle 31 shown in fig. 8 taken along a-a. Wherein a cross-section taken along a-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 two ends of the movable space 41a are respectively connected to the spaces on two sides of the main shaft 31. The movable space 41a communicates with the first avoiding notch 414 and the second avoiding notch 415 of the main support plate 41, so as to communicate 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 top connection assembly 32.

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

Illustratively, a first arc-shaped space 41b and a second arc-shaped 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 communicates with the first relief hole 412, and the other end of the first arc-shaped space 41b communicates with a space outside the main shaft 31. The other end of the first arc-shaped space 41b can also be communicated to the space outside the main shaft 31 through the partial matching 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 space 41c communicates with the second relief hole 413, and the other end of the second arc space 41c communicates with a space outside the main shaft 31. The other end of the second arc-shaped space 41c can also be communicated to the space outside the main shaft 31 through another part of the matching structure of the top cover 42. The first arc-shaped space 41b and the second arc-shaped space 41c are a part of the top space of the main shaft 31 for installing another part of the structure of the top connection assembly 32.

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

In some embodiments, the top connecting assembly 32 includes a first fixing frame 321, a second fixing frame 322, a first connecting arm 323, a second connecting 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 rotating shafts (3281, 3282, 3283, 3284), and the plurality of rotating shafts (3281, 3282, 3283, 3284) are used for plugging other components of the top connection assembly 32 to achieve connection. The 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 view of the first connecting arm 323 shown in fig. 12.

In some embodiments, the first connection arm 323 includes a first end 3231 and a second end 3232, and the first end 3231 and the second end 3232 can each be a rotating end. Illustratively, the first end 3231 of the first connecting arm 323 can include a first curved arm 3233. The first end 3231 of the first connecting arm 323 can include one or more first arc-shaped arms 3233, for example, in the illustrated embodiment, the number of the 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-shaped arm 3233 includes a first protrusion 3233a, and the first protrusion 3233a is located at an end of the first arc-shaped arm 3233 far from the second end 3232 of the first connection arm 323. The first end 3231 of the first connecting arm 323 has an end surface 3231a away from the second end 3232 of the first connecting arm 323, and the first protrusion 3233a protrudes relative to the end surface 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 rotation shaft hole 3234.

Illustratively, the first connecting arm 323 further includes a connecting segment 3235 connected between the first end 3231 and the second end 3232. The arrangement of the connecting section 3235 enables the structural design of the first connecting arm 323 to be more flexible, and can better meet the connecting requirements and the shape requirements. 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. The number of the first fitting blocks 3235a may be one or more, for example, in the illustrated embodiment, the number of the first fitting blocks 3235a is two. The first engaging block 3235a includes an engaging surface 3235b facing the second end 3232 of the first connecting arm 323, and the engaging surface 3235b may be an arc surface. The first engagement block 3235a is configured to allow the first connection arm 323 to engage with certain structures better, increasing the stability of the connection.

The first connecting arm 323 may be an integrally formed structural member to have high structural strength. Illustratively, the first connecting arm 323 may be formed by a Computer Numerical Control (CNC) milling process. In other embodiments, the first connecting arm 323 can also be formed by a metal injection molding process, which is not 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 can each be a rotating end. Illustratively, the first end 3241 of the second coupling 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, the number of the second arc-shaped arms 3243 is two, 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.

Wherein the second arcuate arm 3243 includes a second tab 3243a, the second tab 3243a being located at an end of the second arcuate arm 3243 distal to the second end 3242 of the second connecting arm 324. The first end 3241 of the second connecting arm 324 has an end face 3241a far from the second end 3242 of the second connecting arm 324, and the second projection 3243a protrudes relative 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 may be provided with a pivot bore 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 connecting 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. The number of the second fitting blocks 3245a may be one or more. The second engagement block 3245a includes an engagement surface 3245b facing the second end 3242 of the second connection arm 324, and the engagement surface 3245b may be an arc surface. The second engagement block 3245a is configured to allow the second engagement arm 324 to better engage with certain structures, increasing the stability of the engagement relationship.

The second connecting arm 324 may be an integrally formed structural member, so as to have high structural strength. Illustratively, the second connecting arm 324 may be formed by a Computer Numerical Control (CNC) milling process. In other embodiments, the second connecting arm 324 may also be formed by 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 can be the same shape and material as the second connecting arm 324, so that the same material can be used, the material type of the folding assembly 12 can be saved, and the cost of the folding assembly 12 can be reduced. In other embodiments, the shape and/or material of the first connecting arm 323 may be different from that of the second connecting arm 324, which is not strictly limited in the present embodiment.

Referring to fig. 15, fig. 15 is a schematic structural view 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 pivoting end 3251 of the first swing arm 325 is provided with a pivoting shaft hole 3251a, and the pivoting shaft hole 3251a penetrates the pivoting end 3251 of the first swing arm 325. The rotating end 3251 of the first swing arm 325 can further include a plurality of engaging teeth 3251b, a plurality of first protrusions 3251c, and a plurality of second protrusions 3251 d; the plurality of engaging teeth 3251b may be located at a middle portion of the rotating end 3251 of the first swing arm 325, and at 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 oppositely arranged on two sides of the rotating end 3251 of the first swing arm 325, the plurality of first protrusions 3251c are arranged in a ring shape and are spaced from each other, the plurality of first protrusions 3251c are arranged around the rotating shaft hole 3251a of the rotating end 3251 of the first swing arm 325, the plurality of second protrusions 3251d are arranged in a ring shape and are spaced from each other, and the plurality of second protrusions 3251d are arranged around the rotating shaft hole 3251a of the rotating 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 in the middle of the rotating end 3251 of the first swing arm 325 and adjacent to the plurality of engaging teeth 3251b, and the first splicing block 3251e is located on a side of the plurality of engaging teeth 3251b close to 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 shaft insertion hole 3252a and a first avoidance area 3252b, the first avoidance area 3252b penetrates through the sliding end 3252 of the first swing arm 325, and the first avoidance area 3252b divides the first shaft insertion hole 3252a into two parts.

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 can be bent relative 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 connecting requirement and the shape requirement of the top connecting assembly 32 and the folding assembly 12 can be better satisfied.

For example, the connection section 3253 of the first swing arm 325 may include two first reinforcing blocks 3253a, the two first reinforcing blocks 3253a are respectively disposed at both sides of the connection section 3253 of the first swing arm 325, and the two first reinforcing blocks 3253a can increase the structural strength of the first swing arm 325.

The first swing arm 325 may be an integrally formed structural member to have a high structural strength. Illustratively, the first swing arm 325 may be formed by a metal injection molding process, or by other processes, which is not strictly limited in the embodiments of the present application.

Referring to fig. 16, fig. 16 is a schematic structural view 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 through 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 engaging teeth 3261b, a plurality of first protrusions 3261c, and a plurality of second protrusions 3261 d; the plurality of engaging teeth 3261b may be located at a middle portion of the rotating end 3261 of the second swing arm 326 and at 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 oppositely arranged on two sides of the rotating end 3261 of the second swing arm 326, the plurality of first protrusions 3261c are arranged in a ring shape and are spaced from each other, the plurality of first protrusions 3261c are arranged around the rotating shaft hole 3261a of the rotating end 3261 of the second swing arm 326, the plurality of second protrusions 3261d are arranged in a ring shape and are spaced from each other, and the plurality of second protrusions 3261d are arranged around the rotating shaft hole 3261a of the rotating 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, the second splicing block 3261e may be located in 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 is located on a side of the plurality of engaging teeth 3261b close to 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 shaft insertion hole 3262a and a second avoiding region 3262b, the second avoiding region 3262b penetrates through the sliding end 3262 of the second swing arm 326, and the second avoiding region 3262b divides the second shaft insertion 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 can 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 connecting requirement and the shape requirement of the top connecting assembly 32 and the folding assembly 12 can be better satisfied.

For example, the connecting section 3263 of the second swing arm 326 may include two second reinforcing blocks 3263a, the two second reinforcing blocks 3263a are respectively disposed at two sides of the connecting section 3263 of the second swing arm 326, and the two second reinforcing blocks 3263a can increase 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 higher structural strength. For example, the second swing arm 326 may be formed by a metal injection molding process, or may be formed by other processes, which is not limited in the embodiments of the present application.

In some embodiments, the first swing arm 325 can be the same shape and material as the second swing arm 326 to use the same material, save the material variety 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 swing arm 325 may be different from the second swing arm 326, which is not strictly limited in this embodiment.

Referring to fig. 17A and 17B in combination, fig. 17A is a schematic structural diagram of the damping element 327 shown in fig. 12, and fig. 17B is an exploded structural diagram of the damping element 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 fixing plate 3274, a second fixing plate 3275, an elastic member 3276, a first adapter 3277, a second adapter 3278, and a plurality of third adapters 3279. In the present embodiment, the example "two synchronizing gears 3273 and two third transfer shafts 3279 are provided" is illustrated.

Illustratively, the first detent 3271 includes a first protrusion structure 3271a and a first through hole 3271b, and the second detent 3272 includes a second protrusion structure 3272a and a second through hole 3272b, the second protrusion structure 3272a is disposed opposite to the first protrusion structure 3271 a. The plurality of synchronizing gears 3273 are located between the first and

second detent members

3271, 3272, and the plurality of synchronizing gears 3273 are engaged with each other. The synchronizing gears 3273 are each provided with a rotating shaft hole 3273 a. 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 3273 d. A plurality of engaging teeth 3273b may be positioned at a middle portion of the synchronizing gear 3273, and the plurality of engaging teeth 3273b of adjacent two synchronizing gears 3273 are engaged with each other. The plurality of first protrusions 3273c and the plurality of second protrusions 3273d are located at both ends of the synchronizing gear 3273 to be opposite to each other. In some use states, the first protrusions 3273c of the synchronizing gear 3273 cooperate with the first bump structure 3271a to form a snap-fit structure; the second plurality of protrusions 3273d of the synchronizing gear 3273 cooperate with the second bump structure 3272a to form a snap-fit structure.

Illustratively, the first fixing 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 clamping grooves 3274a spaced apart from each other, and the clamping grooves 3274a extend to a side surface of the first fixing plate 3274, so that the adaptor shaft can be clamped into the clamping grooves 3274a from the side surface of the first fixing plate 3274 to clamp the first fixing plate 3274. The first fixing plate 3274 may have a substantially flat plate shape.

Illustratively, the elastic 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 3276 a. The number of the springs 3276a is the same as the number of the first through holes 3271 b. Among them, the number of the springs 3276a may be four. In other embodiments, the elastic member 3276 may be made of elastic material such as elastic rubber, which is not limited in this application.

Illustratively, the second fixing plate 3275 is located on a side of the elastic member 3276 facing away from the second locking member 3272. The second fixing plate 3275 may have a plate structure. The second fixing plate 3275 includes a plurality of third through holes 3275a, and the plurality of third through holes 3275a are spaced apart from each other. 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 the third through holes 3275a may be four.

Illustratively, one end of the first coupling shaft 3277 is provided with a limit flange 3277a, and the other end of the first coupling shaft 3277 is provided with a limit slot 3277 b. 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 rotating shaft 3277 passes through one of the third through holes 3275a of the second fixing plate 3275, the inner space of one of the springs 3276a, one of the second through holes 3272b of the second locking member 3272, one of the first through holes 3271b of the first locking member 3271, and one of the locking grooves 3274a of the first fixing plate 3274. The limit flange 3277a of the first rotating shaft 3277 is located on a 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 locked in the limit locking groove 3277b of the first rotating shaft 3277, so that the first rotating shaft 3277, 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 can maintain a relatively fixed positional relationship, and the spring 3276a is in a compressed state. The first transfer shaft 3277 may be fixedly connected to the first fixing plate 3274 by welding or bonding.

Illustratively, one end of the second shaft 3278 is provided with a position-limiting flange 3278a, and the other end of the second shaft 3278 is provided with a position-limiting groove 3278 b. The second adapter shaft 3278 is inserted into the second fixing plate 3275, the other spring 3276a, the second stopper 3272, the first stopper 3271 and the first fixing plate 3274. The second adapting shaft 3278 passes through another third through hole 3275a of the second fixing plate 3275, an inner space of another spring 3276a, another second through hole 3272b of the second locking member 3272, another first through hole 3271b of the first locking member 3271, and another locking groove 3274a of the first fixing plate 3274. The position-limiting flange 3278a of the second adapter shaft 3278 is located on a 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 locked in the position-limiting locking groove 3278b of the second adapter shaft 3278, so that the second adapter shaft 3278, 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 second adapter 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 limit flange 3279a, and the other end of the third adapter shaft 3279 is provided with a limit slot 3279 b. The number of the third coupling shafts 3279 is the same as that of the synchronizing gears 3273, and the third coupling shafts 3279, the synchronizing gears 3273 and the partial springs 3276a of the elastic member 3276 are disposed in a one-to-one correspondence. The third shaft 3279 is engaged with the second fixing plate 3275, another spring 3276a, a second engaging member 3272, a synchronizing gear 3273, a first engaging member 3271, and a first fixing plate 3274. The third adapting shaft 3279 passes through another third through hole 3275a of the second fixing plate 3275, an inner space of another spring 3276a, another second through hole 3272b of the second locking member 3272, a rotating shaft hole 3273a of the synchronizing gear 3273, another first through hole 3271b of the first locking member 3271, and another locking groove 3274a of the first fixing plate 3274. The limiting flange 3279a of the third adapter shaft 3279 is located on a 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 locked in the limiting locking groove 3279b of the third adapter shaft 3279, so that the third adapter 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 shaft 3279 may be fixedly connected to the first fixing plate 3274 by welding or bonding.

Referring to fig. 15, 16 and 18, fig. 18 is a schematic structural view of a portion of the top connecting assembly 32 shown in fig. 11. Fig. 18 illustrates a first swing arm 325, a second swing arm 326, and a damping assembly 327.

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 positioned between the first detent 3271 and the second detent 3272. The first transfer shaft 3277 further passes through a transfer 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 transfer 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 usage states, the first protrusions 3251c of the first swing arm 325 cooperate with the first bump structure 3271a of the first detent 3271 to form a snap-fit structure; the plurality of second protrusions 3251d of the first swing arm 325 are engaged with the second protrusion 3272a of the second locking element 3272 to form a locking structure. The plurality of first protrusions 3261c of the second swing arm 326 are matched with the first bump structure 3271a of the first blocking element 3271 to form a blocking structure; the second protrusions 3261d of the second swing arm 326 are engaged with the second protrusion 3272a of the second locking element 3272 to form a locking structure.

Illustratively, the rotating end 3251 of the first swing arm 325 engages the rotating end 3261 of the second swing arm 326 via a plurality of synchronizing gears 3273. Illustratively, the plurality of synchronizing gears 3273 may be arranged in a row, adjacent two synchronizing gears 3273 are engaged with each other, and two synchronizing gears 3273 at the end are engaged with the rotating end 3251 of the first swing arm 325 and the rotating end 3261 of the second swing arm 326, respectively. The plurality of engaging teeth 3251b of the rotating end 3251 of the first swing arm 325 are engaged with the plurality of engaging teeth 3273b of the adjacent synchronizing gear 3273, and the plurality of engaging teeth 3261b of the rotating end 3261 of the second swing arm 326 are engaged with the plurality of engaging 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 engaged with the first detent 3271 and the second detent 3272 to form an engaging structure, so that the first swing arm 325 and the second swing arm 326 can stay at certain positions. In addition, since the relative position relationship of the components of the damping assembly 327 is stable, and the elastic member 3276 is in a compressed state, the elastic force generated by the elastic member 3276 drives the first blocking member 3271 and the second blocking member 3272 to cooperate and press 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 structure 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 blocking member 3271 and the second blocking member 3272 is stable.

Referring to fig. 19 and 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 engaging groove 3213. The first receiving groove 3212 is used to mount other structural members. The first shaft hole 3211 and the first engaging groove 3213 communicate with the first accommodating groove 3212. The first engaging groove 3213 has an engaging wall surface 3213a disposed adjacent to the first pivot hole 3211, and the engaging wall surface 3213a may be a curved surface.

The first fixing frame 321 may further have a first sliding groove 3214 and a first mounting groove 3215, and the first mounting groove 3215 is communicated with the first sliding groove 3214. At this time, the structural member mounted to the first mounting groove 3215 may partially extend into the first sliding groove 3214. The first fixing frame 321 may further have first arc-shaped slots 3216, the number of the first arc-shaped slots 3216 may be one or more, and the first arc-shaped slots 3216 may be disposed at an end portion 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 matching groove 3223. The second receiving groove 3222 is used for mounting other structural members. The second rotation shaft hole 3221 and the second matching groove 3223 are communicated with the second receiving groove 3222. The second engagement groove 3223 has an engagement wall 3223a disposed near the second rotation axis hole 3221, and the engagement wall 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 is communicated 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 one or more second arc-shaped slots 3226, and the second arc-shaped slots 3226 may be disposed at an end portion of the second fixing frame 322.

Referring to fig. 23 and 24, fig. 23 is an assembly structure diagram of the top connection assembly 32 and the top cover 42 of the spindle 31 shown in fig. 11, and fig. 24 is an assembly structure diagram of the top connection assembly 32 and the spindle 31 shown in fig. 11.

In some embodiments, the first connecting arm 323 has two ends respectively connected to the main shaft 31 and the first fixing frame 321, and the second connecting arm 324 has two ends respectively connected to the main shaft 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. A damping assembly 327 is mounted within the spindle 31 and connects the first swing arm 325 and the second swing arm 326.

Referring to fig. 25 to 28, fig. 25 is a schematic sectional view of the structure shown in fig. 24 taken along the line C-C, fig. 26 is a schematic sectional view of the structure shown in fig. 24 taken along the line D-D, fig. 27 is a schematic structural view of the structure shown in fig. 25 in a closed state, and fig. 28 is a schematic structural view of the structure shown in fig. 26 in the closed state. The cross section taken along the line C-C passes through the first fixing frame 321, the first connecting arm 323, the main shaft 31, the second connecting arm 324 and the second fixing frame 322. The cross section taken along the line D-D passes through the first fixing frame 321, the first connecting arm 323, the main shaft 31, the second connecting arm 324 and the second fixing frame 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 arm 3233 of the first end 3231 of the first connection arm 323 is mounted in the first arc space 41b of the main shaft 31, so that the first end 3231 of the first connection arm 323 is rotatably connected to the main shaft 31 by a virtual shaft connection. The rotating shaft 3281 passes through the rotating shaft hole 3234 of the second end 3232 of the first connecting arm 323 and the first rotating shaft hole 3211 of the first fixing frame 321 to insert and connect the second end 3232 of the first connecting arm 323 and the first fixing frame 321, so that the second end 3232 of the first connecting arm 323 is rotatably connected to the first fixing frame 321 by a solid shaft connection.

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 by a virtual shaft. The rotating shaft 3282 passes through the rotating shaft hole 3244 of the second end 3242 of the second connecting arm 324 and the second rotating shaft hole 3221 of the second fixing frame 322 to plug the second end 3242 of the second connecting arm 324 and the second fixing frame 322, so that the second end 3242 of the second connecting arm 324 is rotatably connected to the second fixing frame 322 in a solid shaft connection manner.

Illustratively, as shown in fig. 25, when the folding assembly 12 is in the unfolded state, the end of the first curved arm 3233 is at least partially disposed in the first relief hole 412, e.g., the first tab 3233a of the first curved arm 3233 is at least partially disposed in the first relief hole 412 of the main support plate 41. At this time, the first avoiding hole 412 is designed to enable the first arc-shaped arm 3233 to have a larger arc, the matching arc of the first arc-shaped arm 3233 and the first arc-shaped space 41b of the main support plate 41 (i.e. the arc of the first arc-shaped arm 3233 extending into the first arc-shaped space 41b) is larger, and the relative movement between the first arc-shaped arm 3233 and the first arc-shaped space 41b is smoother. In addition, the risk of the first curved arm 3233 disengaging from the main support plate 41 can be reduced, making the connection between the two more reliable.

When the folding assembly 12 is in the unfolded state, the end of the second curved arm 3243 is at least partially positioned in the second relief hole 413, for example, the second projection 3243a of the second curved arm 3243 is at least partially positioned in the second relief hole 413 of the main support plate 41. At this time, the second avoiding hole 413 is designed such that the second arc-shaped arm 3243 can have a larger arc, the arc of the second arc-shaped arm 3243 fitted into the second arc-shaped space 41c of the main support plate 41 is larger, and the relative movement between the two is more stable. In addition, the risk of the second curved arm 3243 disengaging from the main support plate 41 can be reduced, making the connection between the two more reliable.

In this embodiment, when the folding assembly 12 is in the open state, since the first protrusion 3233a is at least partially located in the first avoiding hole 412, the first avoiding hole 412 may be filled, and the second protrusion 3243a is at least partially located in the second avoiding hole 413, the second avoiding hole 413 may 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 protrusion 3233a can occupy most of the space of the first avoiding hole 412. In some embodiments, the end surface of the first protrusion 3233a may be flush with the support surface 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 protrusion 3233a may be slightly recessed with respect to the supporting surface 411 of the main supporting plate 41 to meet 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 small and the end surface of the first bump 3233a is recessed shallowly from the supporting surface 411 of the main supporting plate 41, when the region of the bending portion 22 of the screen 2 corresponding to the first avoiding hole 412 is pressed or collided, the risk of significant recess or damage is small, and the reliability of the screen 2 is high.

The second tab 3243a may occupy most of the space of the second avoiding hole 413 when the folding assembly 12 is in the open state. In some embodiments, the end surface of the second protrusion 3243a may be flush with the support surface 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 protrusion 3243a may be slightly recessed with respect to the supporting surface 411 of the main supporting plate 41 to meet 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 avoiding hole 413 is small and the end surface of the second protrusion 3243a is recessed shallowly from the supporting surface 411 of the main supporting plate 41, when the region of the bending portion 22 of the screen 2 corresponding to the second avoiding hole 413 is pressed or collided, the risk of significant recess or damage is small, and the reliability of the screen 2 is high.

In other embodiments, the first arc-shaped arm 3233 and the second arc-shaped arm 3243 can be matched with the main supporting plate 41 in an arc shape enough through structural design or size design, and at this time, the first avoiding hole 412 and the second avoiding hole 413 may not be arranged on the main supporting plate 41, so that the main supporting plate 41 has a higher integrity and can better support the bending part 22 of the screen 2.

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

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

In some embodiments, the first engagement block 3235a of the first connection arm 323 can be mounted to the first engagement groove 3213 of the first fixing frame 321 to engage with the first engagement groove 3213 of the first fixing frame 321. Wherein the engagement surface 3235b of the first engagement block 3235a contacts the engagement wall 3213a of the first engagement groove 3213. The second coupling block 3245a of the second coupling arm 324 can be mounted to the second coupling groove 3223 of the second fixing frame 322 to couple with the second coupling groove 3223 of the second fixing frame 322. Wherein the engagement surface 3245b of the second engagement block 3245a contacts the engagement wall 3223a of the second engagement groove 3223.

In this embodiment, the contact structure between the fitting surface and the fitting wall surface increases the contact area between the fitting 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 engagement surface 3235b of the first engagement block 3235a and/or the engagement wall 3213a of the first engagement groove 3213 may be an arc surface, and the engagement surface 3235b of the first engagement block 3235a overlaps the engagement wall 3213a of the first engagement groove 3213. The engagement surface 3245b of the second engagement block 3245a and/or the engagement wall 3223a of the second engagement groove 3223 may be curved, and the engagement surface 3245b of the second engagement block 3245a may overlap the engagement wall 3223a of the second engagement groove 3223.

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

Referring to fig. 30 and 31, 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 structural 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 main shaft 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 main shaft 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 in the first sliding groove 3214 of the first fixing frame 321 to slidably connect with the first fixing frame 321. The rotating end 3251 of the first swing arm 325 is attached to the main shaft 31, and is rotatably connected to the main shaft 31 via a first rotating 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 slidably connect with the second fixing frame 322. The rotating end 3261 of the second swing arm 326 is mounted to the main shaft 31 and is rotatably connected to the main shaft 31 via a second adapter shaft 3278.

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

First mount 321 is used for connecting first casing 11, and second mount 322 is used for connecting second casing 13, and consequently folding assembly 12's top coupling assembling 32 passes through link structure and connecting rod slider structure, realizes being connected between first casing 11 and second casing 13 and main shaft 31, and the component is small in quantity, and cooperation relation and cooperation position are simple, and the component is easily makeed and is assembled, is favorable to realizing the volume production to reduce casing device 1's cost. 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 mechanical tensile strength and mechanical anti-extrusion capability.

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 fixing frame 321, the sliding end 3262 of the second swing arm 326 slides into the second fixing frame 322, and the distance between the first fixing frame 321 and the second fixing frame 322 and the main shaft 31 is small.

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 fixing frame 321, the sliding end 3262 of the second swing arm 326 partially slides out of the second fixing frame 322, and the distance between the first fixing frame 321 and the second fixing frame 322 and the main shaft 31 is large.

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

In addition, as shown in fig. 30 and 31, since the damping assembly 327 is connected between the first swing arm 325 and the second swing arm 326, the damping assembly 327 can provide a damping force and a pushing force when the first swing arm 325 and the second swing arm 326 move, the first swing arm 325 can be connected to 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 to the second housing 13 through the second fixing frame 322, and the second swing arm 326 moves along with the second housing 13, therefore, in the process of relatively unfolding or folding the first housing 11 and the second housing 13, the damping assembly 327 can provide a damping force, so that a user can sense the resistance and the pushing force when unfolding or folding the electronic device 200, thereby obtaining a better hand-feeling opening and closing experience, and improving the mechanism operation experience of the electronic device 200. In addition, the damping assembly 327 may 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 user experience.

In addition, the rotating end 3251 of the first swing arm 325 is engaged 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 sizes and the directions 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 are kept synchronous, that is, the first swing arm and the second swing arm are synchronously close to each other or far away from each other, the rotating actions of the first housing 11 and the second housing 13 relative to the main shaft 31 are kept synchronous, and the mechanism operation experience of a user is improved.

It is understood that the number, size, etc. of the synchronizing gears 3273 can be designed according to the model of the product, such as specific form, size, etc., and the present application does not strictly limit the same. The larger the number of the synchronizing gears 3273 is, the smaller the size of the synchronizing gear 3273 is, and more space can be released, the smaller the number of the synchronizing gears 3273 is, the larger the size of the synchronizing gear 3273 is, the smaller the transmission accumulated error of the synchronizing gear 3273 is, and the improvement of the motion accuracy is facilitated.

It is understood that the damping assembly 327 of the present application can have a variety of configurations. 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 and the first and

second locking members

3271 and 3272 do not have a locking structure therebetween. In other embodiments, the damping assembly 327 may not have the second detent 3272, and the first and

second swing arms

325 and 326 can be stopped at certain positions by the engagement structure between the first detent 3271 and the synchronizing gear 3273 and the first and

second swing arms

325 and 326. In other embodiments, the damping assembly 327 may not include a fixing plate, and both ends of the elastic member 3276 may respectively abut against the first blocking member 3271 and the wall surface of the first installation space, and the elastic member 3276 is compressed between the first blocking member 3271 and the main shaft 31. In other embodiments, the damping assembly 327 may be provided without the synchronizing gear 3273 and the third adapter shaft 3279, and the rotating end 3251 of the first swing arm 325 directly engages with the rotating end 3261 of the second swing arm 326. While the above embodiment is an exemplary structure of the damping assembly 327, the damping assembly 327 may have other implementation structures, which is not limited in this application.

In other embodiments, the damping assembly 327 connected between the rotating end 3251 of the first swing arm 325 and the rotating end 3261 of the second swing arm 326 may not be provided, 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 may be 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 also be rotatably connected to the main shaft 31 through a rotating shaft, which may be a part of the rotating end 3261 of the second swing arm 326, or may be a separate 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 can include a damping structure disposed in the first fixing frame 321 for applying a damping force to the sliding end 3252 of the first swing arm 325, and a damping structure disposed in the second fixing frame 322 for applying a damping force to the sliding end 3262 of the second swing arm 326. Illustratively, the first stop member 3291 is mounted in the first mounting groove 3215 and the second stop member 3292 is mounted in the second mounting groove. When the folding assembly 12 is in the open state, the first stop piece 3291 can abut against the sliding end 3252 of the first swing arm 325, the second stop piece 3292 abuts against the sliding end 3262 of the second swing arm 326, and the first stop piece 3291 limits the first swing arm 325 and the second stop piece 3292 limits the second swing arm 326, so that the housing device 1 can be kept in the open state when not receiving a large external force, thereby improving the use experience of a user. In addition, the first stopper 3291 and the second stopper 3292 can also provide a limiting resistance during the process of unfolding the electronic device 200 to enter the opened state and during the process of folding to release the opened state, so that the user can experience a better mechanism operation feeling.

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 for avoiding the first swing arm 325, so that no interference occurs between the first swing arm 325 and the main support plate 41, thereby ensuring the smoothness and reliability of the mechanism movement. The second swing arm 326 rotates relative to the main shaft 31, and the second avoiding notch 415 of the main support plate 41 is used for avoiding the second swing arm 326, so that the second swing arm 326 and the main support plate 41 do not interfere with each other, and the smoothness and reliability of the mechanism motion are ensured.

When the folding assembly 12 is in the unfolded state, the first splicing block 3251e of the first swing arm 325 is at least partially located in the first avoiding 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 avoiding 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 rotates into the movable space 41a of the main shaft 31, and the second splicing block 3261e of the second swing arm 326 rotates into the movable space 41a of the main shaft 31.

In this embodiment, when the folding assembly 12 is in the open state, because 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 to jointly support the bending portion 22 of the screen 2, so that the main supporting plate 41 provides a relatively complete supporting environment for the bending portion 22 of the screen 2, and the reliability of the screen 2 is improved.

Illustratively, the first splice block 3251e can occupy a substantial portion of the first relief notch 414 when the folding assembly 12 is in the open position. In some embodiments, the end surface of the first splicing block 3251e can be flush with the support surface 411 of the main support plate 41 to achieve splicing, thereby providing a more complete and flat support environment. In other embodiments, the end surface of the first splicing block 3251e can also be slightly recessed with respect to the supporting surface 411 of the main supporting plate 41 to meet the connection requirement of the first connecting arm 323 and the supporting requirement of the screen 2. At this time, by controlling the sinking degree of the end surface 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 collided, the risk of obvious sinking 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 can be flush with the supporting surface 411 of the main supporting plate 41, but a gap is formed between the two, which does not form a splice, but the structure can still provide a better supporting environment for the screen 2.

The second splice 3261e can occupy a substantial portion of the second relief notch 415. In some embodiments, the end surface of the second splicing block 3261e can be flush with the support surface 411 of the main support plate 41 to achieve splicing, thereby providing a more complete and flat support environment. In other embodiments, the end surface of the second splicing block 3261e can also be slightly recessed with respect to the supporting surface 411 of the main supporting plate 41 to meet the connection requirement of the second connecting arm 324 and the supporting requirement of the screen 2. At this time, by controlling the sinking degree of the end surface of the second splicing block 3261e relative to the supporting surface 411 of the main supporting plate 41 to be shallow enough, when the region of the bending portion 22 of the screen 2 corresponding to the second avoiding notch 415 is pressed or collided, the risk of obvious sinking 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 can be flush with the supporting surface 411 of the main supporting plate 41, but a gap is formed between the two, which does not form a splice, 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 surface of the first splicing block 3251e, the end surface of the second splicing block 3261e, and the supporting surface 411 of the main supporting plate 41 are flush, and the three are located on the same plane, and support the bending portion 22 of the screen 2 together, so as to provide a relatively complete and flat supporting environment for the bending portion 22 of the screen 2, and 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, at least two of 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 may form a gap therebetween without forming a splice, 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 also rotate 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 be close to each other through the first avoidance gap 414 and the second avoidance gap 415, and the distance between the two gaps is small, so that the folding assembly 12 integrally forms a water drop-like accommodating space.

Referring to fig. 32, fig. 32 is a schematic structural 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 352, a first rotating block 353, and a first guide 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. First rotation block 353 and first guide block 354 are fixed to fixing surface 352a of first plate 352. The first support plate 35 may be an integrally formed structure, or may be an integrally formed structure assembled from a plurality of members. Wherein the first rotation block 353 may include an arc-shaped arm 3531, and the first guide block 354 may form a first guide link 3541.

The second supporting plate 36 includes a second plate 362, a second rotating block 363, and a second guiding 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 rotation block 363 and the second guide block 364 are fixed to the fixing surface 362a of the second plate 362. The second support plate 36 may be an integrally formed structural member, or may be an integrally formed structure formed by assembling a plurality of components. Here, the second rotating block 363 may include an arc-shaped 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 implementing structures, and the structures of the two may be the same or different, and the present application is not limited thereto. The first guide block 354 and the second guide block 364 mainly provide a guide chute to guide the moving direction of other structural members, and the first guide block 354 and the second guide block 364 may have other implementing structures, which is not limited in this application.

It is understood that the one or more first rotation blocks 353 and the first guide block 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, respectively corresponding to the top connection assembly 32, the middle connection assembly 33 and the bottom connection assembly 34, and also corresponding to the top connection structure, the middle connection structure and the bottom connection structure of the main shaft 31. The three sets of connection structures of the first support plate 35 can be designed by referring to each other, and are not described herein again. Similarly, one or more second rotating blocks 363 and one second guiding block 364 of the second supporting plate 36 may form a set of connecting structures, and the second supporting plate 36 may include three sets of connecting structures, which are respectively used for the top connecting assembly 32, the middle connecting assembly 33 and the bottom connecting assembly 34, and are also used for the connecting structures corresponding to the top, the middle and the bottom of the main shaft 31. The three sets of connecting structures of the second supporting plate 36 can be designed by referring to each other, and are not described herein again.

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

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

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

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

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

Referring to fig. 35 and 36 in combination, fig. 35 is a cross-sectional view of the folding assembly 12 of fig. 5 taken along line H-H, and fig. 36 is a schematic view of the structure of fig. 35 in a closed position. The cross 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 spindle 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. For example, the first guide block 354 of the first support plate 35 may be mounted to a first avoiding region 3252b of a sliding end 3252 of the first swing arm 325, a rotating shaft 3283 inserted into the sliding end 3252 of the first swing arm 325 is mounted to a guide sliding groove 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 avoiding region 3252b, and the rotating shaft 3283 may slide in the guide sliding groove 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 can be installed in the second avoiding 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 installed in the guide sliding groove 3641 of the second guide block 364, the second guide block 364 can slide relative to the sliding end 3262 of the second swing arm 326 through the second avoiding area 3262b, and the rotating shaft 3284 can slide in the guide sliding groove 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 this 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 motion 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 define a movement track of the second support plate 36. Therefore, the first support plate 35 and the second support plate 36 can move with the connecting assembly, and the movement track is accurate, so that the reliability of the folding assembly 12 is higher.

As shown in fig. 34 and 36, in the closed state, the first support plate 35, the main shaft 31, and the second support plate 36 of the folding assembly 12 together enclose a 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 easily damaged and has high reliability. Furthermore, at some positions of the folding assembly 12, the moving members of the plurality of connecting assemblies (32, 33, 34) of the folding assembly 12 can also cooperate with the first supporting plate 35, the main shaft 31 and the second supporting plate 36 to jointly surround a more complete drop-shaped receiving space. As shown in fig. 36, the support surface 351 of the first support plate 35, the surface of the connecting section 3253 of the first swing arm 325, the support surface 411 of the main support plate 41 of the main spindle 31, the surface of the connecting section 3263 of the second swing arm 326, and the support surface 361 of the second support plate 36 collectively surround the drop-shaped receiving space.

Referring again to fig. 35, when the folding assembly 12 is in the unfolded 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. At this moment, 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 part of the screen together, the folding assembly 12 can provide a complete supporting environment for the bending part 22 of the screen 2, and when the bending part 2 of the screen 2 is pressed or collided, the risk of obvious recess or damage is small, so that the reliability of the screen 2 is improved.

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 assembly 12 has no or very small broken holes, and the supporting surface of the folding assembly 12 is relatively complete, so that a good supporting environment can be provided for the bending portion 22 of the screen 2, and the reliability of the screen 2 is improved.

Wherein, the supporting surface 351 of the first supporting plate 35 may be a flat surface to provide a better supporting environment for the bending portion 22 of the screen 2. Alternatively, the supporting surface 351 of the first supporting plate 35 may be provided with one or more grooves with a shallow depth, which may be used, but not limited to, for coating or installing an adhesive layer, through which the bent portion 22 of the screen 2 is connected. It can be understood that the depth of the groove in this portion is small, and the area of the screen 2 corresponding to this portion of the groove will not be depressed significantly when being subjected to external pressure (such as pressing force of a user), 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 bending part 22 of the screen 2. Alternatively, the supporting surface 361 of the second supporting plate 36 may be provided with one or more grooves with a shallow depth, which may be used, but not limited to, for coating or installing an adhesive layer, by which the bent portion 22 of the screen 2 is connected. It can be understood that the depth of the groove in this portion is small, and the area of the screen 2 corresponding to this portion of the groove will not be depressed significantly when being subjected to external pressure (e.g. pressing force of a user), so that the reliability of the screen 2 is high and the service life is long.

For example, when the folding assembly 12 is in the unfolded state, the first supplement block 3514 of the first support plate 35 may be at least partially located in the first avoiding gap 414, so that the support surface 351 of the first support plate 35, the end surface of the first splicing block 3251e and the support surface 411 of the main support plate 41 can be spliced better, and the gap between the adjacent support surfaces is smaller. Similarly, the second supplementary block 3614 of the second support plate 36 can be at least partially located in the second avoiding gap 415, so that the supporting surface 361 of the second support plate 36, the end surface of the second splicing block 3261e and the supporting surface 411 of the main support plate 41 can be spliced more effectively, and the gap between the adjacent supporting surfaces is smaller.

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

In the embodiment of the present application, when the folding assembly 12 is in the unfolded state, the first support plate 35 and the second support plate 36 may overlap the main shaft 31 and part of the moving parts of the plurality of connecting assemblies (32, 33, 34), so that the main shaft 31 and the moving parts can provide rigid support for the first support plate 35 and the second support plate 36, and the pressing virtual positions of the first support plate 35 and the second support plate 36 are reduced, so as to improve the reliability of the screen 2. The following examples are given.

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 this 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 through the overlapping design, and the pressing virtual positions of the first support plate 35 and the second support plate 36 are reduced, so as to improve the reliability of the screen 2.

Illustratively, the first supporting plate 35 has a first overlapping surface 355 overlapping the supporting surface 4161 of the first supporting block 416, and the first overlapping surface 355 of the first supporting plate 35 and the supporting surface 4161 of the first supporting block 416 form a slope fit therebetween, which is beneficial to increase the overlapping area, so that the first supporting block 416 can support the first supporting plate 35 more stably. The second supporting plate 36 has a first overlapping surface 365 overlapping the supporting surface 4171 of the second supporting block 417, and the first overlapping surface 365 of the second supporting plate 36 and the supporting surface 4171 of the second supporting block 417 form an inclined surface fit, which is beneficial to increase the overlapping area, so that the second supporting block 417 can support the second supporting plate 36 more stably.

Referring again to fig. 35, when the folding assembly 12 is in the unfolded state, the first support plate 35 can further overlap the first swing arm 325, for example, the rotating end 3251 and/or the connecting section 3253 of the first swing arm 325; the second support plate 36 can also overlap the second swing arm 326, such as overlapping the rotating end 3261 and/or the connecting segment 3263 of the second swing arm 326. In this embodiment, when the folding assembly 12 is in the unfolded 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 through the overlapping design, and the pressing virtual position 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.

Exemplarily, first backup pad 35 has second faying surface 356 of the first swing arm 325 of overlap joint, forms the inclined plane cooperation between second faying surface 356 of first backup pad 35 and the first swing arm 325, not only is favorable to improving the overlap joint area for first swing arm 325 is more stable to the support of first backup pad 35, can also make first backup pad 35 and first swing arm 325's relative motion difficult interference, more smooth and easy. The second support plate 36 has a second overlapping surface 366 overlapping the second swing arm 326, and the second overlapping surface 366 of the second support plate 36 and the second swing arm 326 form an inclined surface fit, which is not only beneficial to increasing the overlapping area, but also more stable for the second swing arm 326 supports the second support plate 36, and can make the relative movement of the second support plate 36 and the second swing arm 326 not easy to interfere and smoother.

Referring to fig. 8 and 37 in combination, fig. 37 is a 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 cover 42 and the second support panel 36 may also overlap a plurality of fourth support blocks 422 of the top cover 42 when the folding assembly 12 is in the unfolded state. Other covers (such as the middle cover 43 or the bottom cover 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 with the first supporting plate 35 and the second supporting plate 36, respectively, and will not be described herein again.

In this embodiment, since the third supporting block 421 protrudes toward 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, 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 structural requirement on the first supporting plate 35 is low, and the supporting structure is easy to implement. Similarly, since the fourth supporting block 422 protrudes toward the main supporting plate 41, the fourth supporting block 422 is offset from the second supporting block 417, and the supporting surface 4171 of the fourth supporting block 422 is close to the supporting surface 4171 of the second supporting block 417, 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 structural requirement on the second supporting plate 36 is low, and the supporting structure is easy to implement.

Exemplarily, the first supporting plate 35 has the third faying surface 357 overlapping the plurality of third supporting blocks 421 of the top cover body 42, and the third faying surface 357 of the first supporting plate 35 and the plurality of third supporting blocks 421 of the top cover body 42 form an inclined surface fit therebetween, which is not only beneficial to improving the faying area, so that the plurality of third supporting blocks 421 of the top cover body 42 support the first supporting plate 35 more stably, but also enables the relative movement of the first supporting plate 35 and the plurality of third supporting blocks 421 of the top cover body 42 to be difficult to interfere and smoother. The second supporting plate 36 has a third overlapping surface 367 overlapping the plurality of fourth supporting blocks 422 of the top cover body 42, and the third overlapping surface 367 of the second supporting plate 36 and the plurality of fourth supporting blocks 422 of the top cover body 42 form an inclined surface fit, which is not only beneficial to improving the overlapping area, but also is more stable for the plurality of fourth supporting blocks 422 of the top cover body 42 to support the second supporting plate 36, and can make the relative movement of the second supporting plate 36 and the plurality of fourth supporting blocks 422 of the top cover body 42 not easily interfere and smoother.

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 the partial motion piece of coupling assembling for mount and motion piece can provide the rigidity for first backup pad 35 and second backup pad 36 and support, and first backup pad 35 and second backup pad 36 can cooperate with main shaft 31, form the better accommodating space of stability, in order to hold screen 2 better, promote the reliability of screen 2. The following examples are given.

Referring to fig. 38 to 40 in combination, fig. 38 is a schematic cross-sectional structure diagram of the electronic device 200 shown in fig. 3 taken along J-J, fig. 39 is a schematic cross-sectional structure diagram of the electronic device 200 shown in fig. 3 taken along K-K, and fig. 40 is a schematic cross-sectional structure diagram of the electronic device 200 shown in fig. 3 taken along 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 supporting plate 35 overlaps the first fixing frame 321, and the second supporting 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 moment, coupling assembling's swing arm, mount and linking arm homoenergetic are enough for the backup pad provides the rigid support for the relative position of first backup pad 35 and second backup pad 36 is stable, and for the portion 22 of bending of screen 2 provides stable support environment, the drop form of the portion 22 of bending of screen 2 is changeed to first backup pad 35 and second backup pad 36, is favorable to improving the reliability of screen 2.

The above embodiments are only used for illustrating the technical solutions 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electronic device (200) characterized by having an open state and a closed state;

the electronic equipment (200) comprises a shell device (1) and a screen (2), wherein the shell device (1) comprises a first shell (11), a second shell (13) and a folding component (12), the folding component (12) is connected with the first shell (11) and the second shell (13), and the first shell (11) and the second shell (13) can be relatively unfolded or relatively folded through the movement of the folding component (12);

the screen (2) comprises a first non-bending part (21), a bending part (22) and a second non-bending part (23) which are sequentially arranged, the first non-bending part (21) is fixed on the first shell (11), the second non-bending part (23) is fixed on the second shell (13), and the bending part (22) deforms in the process that the first shell (11) and the second shell (13) are relatively unfolded or relatively folded;

the folding assembly (12) comprises a main shaft (31), a first fixing frame (321), a second fixing frame (322), a first swing arm (325), a second swing arm (326), a first supporting plate (35) and a second supporting plate (36);

the main shaft (31) comprises a main support plate (41), and the main support plate (41) is provided with a first avoidance notch (414) and a second avoidance notch (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 (3251e), the rotating end (3251) of the first swing arm (325) is rotatably connected with the spindle (31), the first avoidance gap (414) is used for avoiding the first swing arm (325), and the sliding end (3252) of the first swing arm (325) is slidably 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 (3261e), the rotating end (3261) of the second swing arm (326) is rotatably connected with the spindle (31), the second avoiding gap (415) is used for avoiding the second swing arm (326), and the sliding end (3262) of the second swing arm (326) is slidably connected with the second fixing frame (322);

when the electronic equipment (200) is in an open state, at least part of the first splicing block (3251e) is located in the first avoidance gap (414), at least part of the second splicing block (3261e) is located in the second avoidance gap (415), the first supporting plate (35) and the second supporting plate (36) are located on two sides of the main supporting plate (41), and 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) jointly support the bending part (22) of the screen (2).

2. The electronic device (200) according to claim 1, wherein the main shaft (31) has a movable space (41a), the movable space (41a) communicates with the first avoidance gap (414) and the second avoidance gap (415), and when the electronic device (200) is in the closed state, the first and second splicing blocks (3251e, 3261e) are turned into the movable space (41 a).

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

4. The electronic device (200) according to any of claims 1 to 3, wherein when the electronic device (200) is in an open state, a support surface (351) of the first support plate (35), a support surface (361) of the second support plate (36), a support surface (411) of the main support plate (41), an end surface of the first splice block (3251e) and an end surface of the second splice block (3261e) are spliced for jointly supporting the screen (2).

5. The electronic device (200) of claim 1, wherein the first support plate (35) is slidably connected to a sliding end (3252) of the first swing arm (325), and the first support plate (35) is rotatably connected to the first fixing frame (321);

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).

6. The electronic device (200) of claim 1 or 5, wherein the first support plate (35) comprises a first complementary piece (3514), and the second support plate (36) comprises a second complementary piece (3614); when the electronic equipment (200) is in an open state, the first supplementary block (3514) is at least partially located in the first avoidance gap (414), and the second supplementary block (3614) is at least partially located in the second avoidance gap (415).

7. The electronic device (200) according to any one of claims 1 to 3, wherein the main shaft (31) has a first arc-shaped space (41b) and a second arc-shaped space (41c), the main support plate (41) further comprises a first avoidance hole (412) and a second avoidance hole (413), the first avoidance hole (412) communicates with the first arc-shaped space (41b), and the second avoidance hole (413) communicates with the second arc-shaped space (41 c);

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) comprises a first arc-shaped arm (3233), the first arc-shaped arm (3233) is mounted in the first arc-shaped space (41b) so that the first end (3231) of the first connecting arm (323) is rotatably connected with the main shaft (31), and the second end (3232) of the first connecting arm (323) is rotatably 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) comprises a second arc-shaped arm (3243), the second arc-shaped arm (3243) is installed in the second arc-shaped space (41c) so that the first end (3241) of the second connecting arm (324) is rotatably connected with the spindle (31), and the second end (3242) of the second connecting arm (324) is rotatably connected with the second fixing frame (322);

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

8. The electronic device (200) of claim 7, wherein the first fixing frame (321) has a first fitting groove (3213), and the first fitting groove (3213) has a fitting wall surface (3213 a); the connecting section of the first connecting arm (323) comprises a first mating block (3235a), the first mating block (3235a) comprising a mating face (3235b) facing the second end (3232) of the first connecting arm (323); the first fitting block (3235a) is mounted to the first fitting groove (3213), and a fitting surface (3235b) of the first fitting block (3235a) contacts a fitting wall surface (3213a) of the first fitting groove (3213).

9. The electronic device (200) according to claim 1 or 5, wherein the main support plate (41) comprises a first support block (416) and a second support block (417), the first support block (416) and the second support block (417) being protrudingly provided at both sides of the main support plate (41), respectively;

when the electronic device (200) is in an open state, the first support plate (35) overlaps the first support block (416), and the second support plate (36) overlaps the second support block (417).

10. The electronic device (200) according to claim 9, wherein the main shaft (31) further comprises a cover body (42), the cover body (42) is fixed on a side of the main supporting plate (41) facing away from the supporting surface (411) of the main supporting plate (41), the cover body (42) further comprises a third supporting block (421) and a fourth supporting block (422), the third supporting block (421) and the fourth supporting block (422) are respectively convexly arranged on two sides of the cover body (42);

when the electronic device (200) is in an open state, the first support plate (35) overlaps the third support block (421), and the second support plate (36) overlaps the fourth support block (422).

11. The electronic device (200) of claim 10, wherein the third support block (421) protrudes in a direction approaching the main support plate (41), and the third support block (421) is offset from the first support block (416).

12. The electronic device (200) according to claim 1 or 5, wherein the main shaft (31) further comprises a cover body (42), the cover body (42) is fixed on one side of the main supporting plate (41) opposite to the supporting surface (411) of the main supporting plate (41), the cover body (42) further comprises a third supporting block (421) and a fourth supporting block (422), and the third supporting block (421) and the fourth supporting block (422) are respectively convexly arranged on two sides of the cover body (42);

13. The electronic device (200) of claim 1 or 5, 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 electronic device (200) is in an open state.

14. The electronic device (200) of claim 7, wherein the first support plate (35) overlaps the first mount (321), the first swing arm (325), or the first connecting arm (323), and the second support plate (36) overlaps the second mount (322), the second swing arm (326), or the second connecting arm (324) when the electronic device (200) is in the closed state.

15. The electronic device (200) of any of claims 1-3, wherein the first swing arm (325) further comprises a connecting section (3253), the connecting section (3253) of the first swing arm (325) being connected between a rotating end (3251) of the first swing arm (325) and a sliding end (3252) of the first swing arm (325); the second swing arm (326) further comprises a connecting section (3263), the connecting section (3263) of the second swing arm (326) is connected between the rotating end (3261) of the second swing arm (326) and the sliding end (3262) of the second swing arm (326);

when the electronic device (200) is in a closed state, the first swing arm (325) is at least partially located in the first avoidance gap (414), and the second swing arm (326) is at least partially located in the second avoidance gap.

16. A folding assembly (12) for an electronic device (200), wherein the folding assembly (12) is used for supporting a bending part (22) of a screen (2) of the electronic device (200), and the folding assembly (12) has an open state and a closed state;

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 (3261e), the rotating end (3261) of the second swing arm (326) is rotatably connected with the main shaft (31), the second avoiding notch (415) is used for avoiding the second swing arm (326), and the sliding end (3262) of the second swing arm (326) is slidably connected with the second fixing frame (322);

when the folding assembly (12) is in an open state, at least part of the first splicing block (3251e) is located in the first avoidance notch (414), at least part of the second splicing block (3261e) is located in the second avoidance notch (415), the first supporting plate (35) and the second supporting plate (36) are located on two sides of the main supporting plate (41), and 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) are used for supporting the bending part (22) of the screen (2) together.

17. The folding assembly (12) of claim 16, wherein the spindle (31) has an active space (41a), the active space (41a) communicating the first relief notch (414) and the second relief notch (415), the first and second tiles (3251e, 3261e) turning into the active space (41a) when the folding assembly (12) is in the closed state.

18. The folding assembly (12) of claim 16, characterized in that said main support plate (41) has a support surface (411) for supporting said screen (2); when the folding assembly (12) is in an opening 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.

19. The folding assembly (12) according to any one of claims 16 to 18, wherein, in the unfolded state of the folding assembly (12), 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 splicing block (3251e) and the end face of the second splicing block (3261e) are spliced for jointly supporting the screen (2).

20. The folding assembly (12) of claim 16 wherein said first support plate (35) is slidably coupled to a sliding end (3252) of said first swing arm (325), said first support plate (35) being rotatably coupled to said first mount (321);

21. A folding assembly (12) according to claim 16 or 20, wherein said first support plate (35) comprises a first complementary block (3514) and said second support plate (36) comprises a second complementary block (3614); when the folding assembly (12) is in an unfolded state, the first supplementary block (3514) is at least partially located in the first avoidance gap (414), and the second supplementary block (3614) is at least partially located in the second avoidance gap (415).

22. The folding assembly (12) according to any one of claims 16 to 18, wherein the main shaft (31) has a first arc-shaped space (41b) and a second arc-shaped space (41c), the main support plate (41) further comprises a first avoidance hole (412) and a second avoidance hole (413), the first avoidance hole (412) communicates with the first arc-shaped space (41b), and the second avoidance hole (413) communicates with the second arc-shaped space (41 c);

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

23. The folding assembly (12) of claim 16 or 20, wherein the main support plate (41) comprises a first support block (416) and a second support block (417), the first support block (416) and the second support block (417) being protrudingly provided on both sides of the main support plate (41), respectively;

when the folding assembly (12) is in the unfolded state, the first support plate (35) overlaps the first support block (416), and the second support plate (36) overlaps the second support block (417).

24. The folding assembly (12) according to claim 16 or 20, wherein the main shaft (31) further comprises a cover body (42), the cover body (42) is fixed on one side of the main supporting plate (41) opposite to the supporting surface (411) of the main supporting plate (41), the cover body (42) further comprises a third supporting block (421) and a fourth supporting block (422), the third supporting block (421) and the fourth supporting block (422) are respectively convexly arranged on two sides of the cover body (42);

when the folding assembly (12) is in an open state, the first supporting plate (35) is overlapped with the third supporting block (421), and the second supporting plate (36) is overlapped with the fourth supporting block (422).

25. The folding assembly (12) of claim 16 or 20 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.

26. The folding assembly (12) of any of claims 16 to 18 wherein said first swing arm (325) further comprises a connecting section (3253), said connecting section (3253) of said first swing arm (325) being connected between a rotating end (3251) of said first swing arm (325) and a sliding end (3252) of said first swing arm (325); the second swing arm (326) further comprises a connecting section (3263), the connecting section (3263) of the second swing arm (326) is connected between the rotating end (3261) of the second swing arm (326) and the sliding end (3262) of the second swing arm (326);

27. A housing arrangement (1) comprising a first housing (11), a second housing (13) and a folding assembly (12) as claimed in any one of claims 16 to 26, wherein a first fastening (321) of the folding assembly (12) is fixedly connected to the first housing (11), and a second fastening (322) of the folding assembly (12) is fixedly connected to the second housing (13), and wherein the first housing (11) and the second housing (13) can be relatively unfolded or relatively folded by a movement of the folding assembly (12).