CN112449523B

CN112449523B - Foldable shell assembly and foldable equipment

Info

Publication number: CN112449523B
Application number: CN201910841469.0A
Authority: CN
Inventors: 陈荣权; 郑泽宽
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2022-06-10
Anticipated expiration: 2039-09-05
Also published as: CN112449523A

Abstract

The application provides a collapsible casing subassembly and foldable equipment, collapsible casing subassembly includes the pivot seat and locates first pivot subassembly in the pivot seat, first pivot subassembly includes: the rotating piece is rotatably connected with the rotating shaft seat and is provided with a rotating surface; the damping piece is attached to the rotating surface of the rotating piece, and when the rotating piece rotates, the rotating surface rotates relative to the damping piece and generates friction force with the damping piece; and the magnetic force generated by the magnet assembly is used for driving the rotating surface of the rotating piece to abut against the damping piece. The application provides a foldable shell component and a foldable device which can still keep the rotation damping feeling after long-time use.

Description

Foldable shell assembly and foldable equipment

Technical Field

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

Background

The foldable shell assembly is a key device of foldable equipment, and how to design the foldable shell assembly can still keep the rotation damping feeling after long-time use, so that the reliability of the foldable shell assembly is improved, and the foldable shell assembly becomes a technical problem to be solved.

Disclosure of Invention

The application provides a foldable shell component and a foldable device which can still keep the rotation damping feeling after long-time use.

The application provides a pair of collapsible shell assembly, include the pivot seat and locate first pivot subassembly in the pivot seat, first pivot subassembly includes:

the rotating piece is rotatably connected with the rotating shaft seat and is provided with a rotating surface;

the damping piece is attached to the rotating surface of the rotating piece, and when the rotating piece rotates, the rotating surface rotates relative to the damping piece and generates friction force with the damping piece; and

and the magnetic force generated by the magnet assembly is used for driving the rotating surface of the rotating piece to abut against the damping piece.

The application provides a foldable device, including collapsible casing subassembly, foldable device is still including locating flexible display screen on the collapsible casing subassembly.

By arranging the magnet assembly, the magnetic force generated by the magnet assembly can promote the rotating surface to be close to the damping piece, so that the rotating surface and the damping piece are always abutted to keep the damping force applied to the rotating piece in the rotating process stable, and the foldable shell assembly has damping feeling when being folded; moreover, the space that the magnet subassembly occupied is little and magnetic force is great relatively, so, the magnet subassembly can greatly save the space of collapsible casing subassembly under obtaining required butt power, and simultaneously, the magnetic force stability that the magnet subassembly produced is strong, can not make the butt power between the rotating face of rotating the piece and the damping piece reduce because of long-time the use, ensures that the butt power between the rotating face of rotating the piece and the damping piece is stable, and then improves the reliability of collapsible casing subassembly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a foldable device provided in an embodiment of the present application in a flattened state;

fig. 2 is a schematic structural diagram of a foldable device provided in an embodiment of the present application in a folded state;

fig. 3 is a schematic structural disassembly diagram of a foldable device provided in an embodiment of the present application;

fig. 4 is a schematic structural diagram of a rotating shaft assembly provided in an embodiment of the present application;

fig. 5 is a partial structural schematic view of a rotating shaft assembly provided in the embodiment of the present application;

fig. 6 is another partial structural schematic view of a rotating shaft assembly provided in the embodiment of the present application;

fig. 7 is a partially disassembled schematic view of a rotating shaft assembly provided in the embodiment of the present application;

fig. 8 is a schematic structural diagram of a rotating shaft seat provided in an embodiment of the present application;

Fig. 9 is a partially disassembled schematic view of a rotating shaft assembly provided in an embodiment of the present application;

FIG. 10 is a schematic partial structural view of a first rotating shaft assembly provided by an embodiment of the present application;

FIG. 11 is a cross-sectional view of a portion of a second first spindle assembly provided in accordance with an embodiment of the present application;

FIG. 12 is another cross-sectional view of a portion of a second first shaft assembly provided in accordance with an embodiment of the present application;

FIG. 13 is a schematic partial structural view of a third first rotating shaft assembly provided in accordance with an embodiment of the present application;

FIG. 14 is a schematic illustration in partial cross-sectional view of a fourth first shaft assembly provided in accordance with an embodiment of the present application;

FIG. 15 is a schematic partial structural view of a fifth first rotating shaft assembly provided by the embodiment of the present application;

FIG. 16 is a partial schematic structural view of a sixth first rotating shaft assembly provided in the embodiments of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The embodiments listed in the present application may be combined with each other as appropriate to constitute a new embodiment.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a foldable device according to an embodiment of the present disclosure. The foldable device 100 may be a foldable display device, such as a mobile phone, a tablet, an e-reader, a computer, an electronic display screen, and so on. It will be appreciated that the foldable device 100 may also be a foldable non-display device. In this embodiment, the length direction of the foldable device 100 is defined as the Y-axis direction. The width direction of the foldable device 100 is defined as the X-axis direction. The thickness direction of the foldable device 100 is defined as the Z-axis direction. The bending axis of the foldable device 100 is along the X-axis direction.

Referring to fig. 1 and 2 together, an embodiment of the present application provides a foldable device 100. The foldable device 100 comprises a foldable housing assembly 10 and a flexible display 20 provided on the foldable housing assembly 10. The flexible display 20 can be folded as the foldable housing assembly 10 is folded and can also be unfolded as the foldable housing assembly 10 is unfolded to achieve the flattening and folding of the foldable device 100. In the present embodiment, the flexible display 20 is not limited to the form of the fold-in or fold-out.

Referring to fig. 3, the present embodiment provides a foldable housing assembly 10. The foldable housing assembly 10 includes a first housing 30, a second housing 40, and a rotation shaft assembly 50 connected between the first housing 30 and the second housing 40. The first housing 30, the rotary shaft assembly 50 and the second housing 40 are sequentially connected along the Y-axis direction to form a support structure for supporting the flexible display 20. The first housing 30, the rotating shaft assembly 50, the second housing 40 and the flexible display screen 20 are connected to form a complete housing of the foldable device 100. When the first housing 30 and the second housing 40 are close to each other, the rotating shaft assembly 50 is driven by the first housing 30 and the second housing 40 to fold, and the flexible display 20 is bent, so that the foldable device 100 is bent. When the first housing 30 and the second housing 40 are unfolded, the rotating shaft assembly 50 is unfolded under the driving of the first housing 30 and the second housing 40, and the flexible display 20 is unfolded, so that the foldable device 100 is unfolded. It is understood that when the foldable device 100 is a mobile phone, the foldable device 100 further includes the electronic components of the mobile phone in the prior art, and the detailed description thereof is omitted here.

Referring to fig. 4, the shaft assembly 50 includes a shaft base 60 and a first shaft assembly 70 disposed in the shaft base 60. The rotating shaft base 60 has a housing cavity 601, and the first rotating shaft assembly 70 is mounted in the housing cavity 601.

Referring to fig. 4, the shaft assembly 50 further includes a second shaft assembly 80 disposed in the shaft seat 60. The structure of the second rotary shaft assembly 80 may be the same as that of the first rotary shaft assembly 70. The second rotary shaft assembly 80 is centrosymmetric to the first rotary shaft assembly 70. The first and second rotation shaft assemblies 70 and 80 are connected between the first and

second housings

30 and 40, so that the connection between the first and

second housings

30 and 40 is more secure and the folding reliability of the foldable device 100 is stronger.

Referring to fig. 5 and 6, the first shaft assembly 70 includes a rotating member 1, a damping member 2 and a magnet assembly 3.

Referring to fig. 5 to 7, the rotating member 1 is rotatably connected to the rotating shaft base 60. Specifically, the rotating shaft base 60 is provided with a through hole 602, and the rotating member 1 can penetrate through the through hole 602 and can rotate in the through hole 602 under the action of an external force. The rotating member 1 can be connected to the first casing 30 or the second casing 40, and the rotating member 1 is driven to rotate by the connected casing. Referring to fig. 7, the rotor 1 has a rotation plane 101. The rotation surface 101 rotates when the rotation member 1 rotates.

Referring to fig. 6, the damping member 2 is attached to the rotating surface 101 of the rotating member 1. When the damper 2 is in surface-to-surface contact with the rotating surface 101, the damping member 2 is attached to the rotating surface 101 in a surface-to-surface manner. Of course, in another embodiment, when the rotating surface 101 and the damper 2 are in line-surface contact, the damping material 2 and the rotating surface 101 are bonded to each other in a line-surface bonding manner. Accordingly, when the damping member 2 is in point-surface contact with the rotating surface 101, the damping member 2 is attached to the rotating surface 101 in a point-surface attachment manner.

When the rotation member 1 rotates, the rotation surface 101 rotates relative to the damping member 2, and generates a frictional force with the damping member 2. Specifically, the damping member 2 may be fixed relative to the rotary shaft base 60 in the rotational direction of the rotary member 1. Therefore, when the rotor 1 rotates, friction is generated between the rotor 1 and the damper 2 because the rotor 1 is in contact with the damper 2. In other words, the damping member 2 generates a rotational damping force for the rotation of the rotation member 1. The rotational damping force is smaller than the rotational torsion of the rotational member 1. Assuming that the rotation of the rotating member 1 does not receive the rotation damping force, the rotating member 1 can be driven by any external force to rotate, so that the foldable housing assembly cannot be maintained at the desired bending angle of the user, and is inconvenient to use. Therefore, by providing the damping member 2 at one side of the rotation member 1, the damping member 2 generates a rotation damping force when the rotation member 1 rotates, does not hinder the folding and unfolding of the foldable housing assembly 10, and can also increase the rotation damping feeling of the foldable device 100, ensure that the foldable device 100 is positioned at an arbitrary bending angle, and facilitate the user to freely bend the foldable device 100.

The magnetic force generated by the magnet assembly 3 is used for driving the rotating surface 101 of the rotating member 1 to approach the damping member 2; alternatively, the magnetic force generated by the magnet assembly 3 is used to drive the damping member 2 closer to the rotating surface 101 of the rotating member 1; alternatively, the magnetic force generated by the magnet assembly 3 is used to drive the damping member 2 and the rotational surface 101 of the rotational member 1 toward each other. In other words, the magnetic force generated by the magnet assembly 3 is used to drive the abutment between the rotating member 1 and the damping member 2.

By arranging the magnet assembly 3, the magnetic force generated by the magnet assembly 3 can promote the rotating surface 101 and the damping piece 2 to approach each other, so that the rotating surface 101 and the damping piece 2 are always abutted to keep the rotating damping force applied to the rotating piece 1 in the rotating process stable, and the rotating damping sense of the foldable shell assembly 10 is further improved; moreover, the space occupied by the magnet assembly 3 is small and the magnetic force is large, so the magnet assembly 3 can greatly save the space of the foldable shell assembly 10 under the condition of obtaining the required abutting force, meanwhile, the magnetic force generated by the magnet assembly 3 is strong in stability and cannot be deformed or abraded due to long-time use, the abutting force between the rotating surface 101 of the rotating part 1 and the damping part 2 is reduced, the stability of the abutting force between the rotating surface 101 of the rotating part 1 and the damping part 2 is ensured, and the reliability of the foldable shell assembly 10 is further improved.

In one embodiment, referring to fig. 8, the rotating shaft base 60 is elongated and extends along the X-axis direction. The rotary shaft base 60 has a bottom plate 61 and four side plates connected to the periphery of the bottom plate 61. Wherein, two side plates arranged in the X direction are short side plates 62, and both the short side plates 62 connect the first casing 30 and the second casing 40. The two side plates arranged in the Y direction are long side plates 63, and one of the two long side plates 63 is close to the first housing 30 and the other is close to the second housing 40. It will be appreciated that the two long side panels 63 may be curved to provide a curved portion of the foldable device 100 when folded. The bottom plate 61 and the four side plates surround to form a containing cavity 601. Referring to fig. 4, the first rotating shaft assembly 70 and the second rotating shaft assembly 80 are disposed in the accommodating cavity 601. It will be appreciated that the housing 601 has a plurality of partitions 64 therein to divide the location of the various components.

The following embodiment will specifically explain the structure of the first spindle assembly 70.

Referring to fig. 9, the rotating member 1 further includes a first rotating shaft 11 and a rotating wheel 12 sleeved on the outer peripheral surface of the first rotating shaft 11. The first rotating shaft 11 is rotatably connected with the rotating shaft base 60. The rotor 12 is rotatable with rotation of the first rotor shaft 11, and the rotation surface 101 is an end surface or a circumferential side surface of the rotor 12.

Specifically, referring to fig. 5 and 9, the first rotating shaft 11 extends along the X-axis direction. The partition plates 64 of the shaft base 60 each have a through hole 602, and the first shaft 11 passes through the through holes 602 of the partition plates 64 and can rotate in the through holes 602, so that the first shaft 11 is rotatably connected to the shaft base 60. The first rotating shaft 11 plays a role of driving other devices to rotate, so that the first rotating shaft 11 has strong structural strength so as not to be easily broken. The material of the first shaft 11 may be metal, alloy, or the like.

Specifically, referring to fig. 5 and 9, the rotating wheel 12 is sleeved on the first rotating shaft 11 and can rotate along with the rotation of the first rotating shaft 11. The first rotating shaft 11 has a large semicircular cross section. In other words, the circumferential side of the first rotating shaft 11 has a flat surface to prevent the rotating wheel 12 from rotating with respect to the first rotating shaft 11. It can be understood that the material of the rotating wheel 12 and the material of the damping member 2 may be wear-resistant material, such as rubber, to ensure that the friction force between the rotating wheel 12 and the damping member 2 meets the requirement of the foldable device 100 for the rotating damping hand feeling, and to further increase the service life of the rotating wheel 12 and the damping member 2.

Because the first rotating shaft 11 is thin, if the rotating wheel 12 is not arranged on the first rotating shaft 11, the contact area between the first rotating shaft 11 and the damping member 2 is small, which is not beneficial to forming a rotary damping force with a required size between the first rotating shaft 11 and the damping member 2. In addition, the friction of the damper 2 against the first rotating shaft 11 may cause the first rotating shaft 11 to be worn, which is disadvantageous to the reliability of the foldable housing assembly 10. Therefore, by providing the rotating wheel 12 on the first rotating shaft 11, the contact area with the damping member 2 can be increased to form a rotational damping force of a desired magnitude; the friction between the rotating wheel 12 and the damping member 2 does not affect the rotation of the first rotating shaft 11, improving the reliability of the foldable housing assembly 10.

It will be appreciated that the rotating surface 101 may be an end or peripheral side surface of the rotating wheel 12. The following embodiments are used to describe the rotation surface 101 in various cases.

In one embodiment, referring to fig. 9 and 10, the rotating surface 101 is an end surface of the rotating wheel 12. The damping member 2, the rotating wheel 12 and the magnet assembly 3 are arranged along the axial direction of the first rotating shaft 11. In other words, the damping member 2, the rotating wheel 12 and the magnet assembly 3 extend in the X-axis direction. The damping member 2 is opposite to the rotating surface 101 of the rotating wheel 12, and when the rotating wheel 12 rotates, the rotating wheel 12 rubs against the damping member 2 to generate a rotating damping force, so as to ensure a damping feel of the foldable housing assembly 10 when folded, so that the foldable housing assembly 10 can be positioned at any bending angle, and a user can bend the foldable device 100 freely. The structure and position of the magnet assembly 3 are explained in detail later.

Since the rotary shaft base 60 extends in the X-axis direction, the damping member 2, the rotary wheel 12 and the magnet assembly 3 are arranged in the axial direction (i.e., the X-axis direction) of the first rotary shaft 11, so that the length space of the rotary shaft base 60 is reasonably utilized, and the rationality of the structural layout of the foldable housing assembly 10 is improved.

In another embodiment, referring to fig. 11 and 12, the rotating surface 101 is a circumferential side surface of the rotating wheel 12. The damper 2 is attached to the circumferential side surface of the rotating wheel 12. Further, the damping member 2 has an arc surface matching the rotation surface 101. The damper 2, the rotating wheel 12, and the magnet assembly 3 are arranged in a radial direction of the first rotating shaft 11.

In particular, the rotatable wheel 12 is substantially cylindrical. The circumferential side surface of the rotating wheel 12 is a cylindrical surface. The curvature of the arc surface of the damper 2 is close to the curvature of the outer peripheral surface of the rotating surface 101, so that the damper 2 is attached to the rotating surface 101. When the rotary wheel 12 rotates, the larger the contact area between the damper 2 and the rotating surface 101 is, the larger the frictional force between the damper 2 and the rotating surface 101 is.

The cambered surface attached to the rotating wheel 12 is arranged on the damping piece 2, so that the contact area between the damping piece 2 and the rotating wheel 12 is increased, the friction force between the damping piece 2 and the rotating wheel 12 is increased, and the rotating damping force required by the foldable equipment 100 is formed under the condition that the sizes of the rotating wheel 12 and the damping piece 2 are smaller; in addition, the damping member 2 and the rotating wheel 12 are arranged along the radial direction of the first rotating shaft 11, so that the space of the first rotating shaft 11 in the radial direction can be effectively reduced, the space of the first rotating shaft assembly 70 in the X-axis direction is reduced, the structural compactness of the rotating shaft assembly 50 is further improved, and the foldable shell assembly 10 can be favorably mounted in electronic equipment such as a mobile phone with limited space.

Further, referring to fig. 12, the number of the damping members 2 may be two. Two damping members 2 may be provided on both upper and lower sides of the rotary wheel 12. The magnet assembly 3 may comprise two oppositely arranged

magnets

31, 32. The two damping elements 2 and the rotor 12 are arranged between the two

magnets

31, 32. The two

magnets

31, 32 generate a magnetic attraction force between each other. The two

magnets

31, 32 drive the two damping members 2 against the rotating surface 101 of the rotating wheel 12 under the action of magnetic attraction. When the rotating wheel 12 rotates, the rotating wheel 12 receives the rotation damping force generated by the two damping members 2, so that the foldable housing assembly 10 has a rotation damping rod when rotating, and the foldable housing assembly 10 can be positioned at any bending angle. In this embodiment, the rotating wheel 12 is attached to the two damping members 2, so that the attachment area between the rotating wheel 12 and the damping members 2 can be greatly increased, and the sizes of the rotating wheel 12 and the damping members 2 can be reduced under the condition that the rotation damping force required by the foldable housing assembly 10 is constant, thereby promoting the miniaturization of the first rotating shaft assembly 70 and facilitating the installation of the foldable housing assembly 10 in electronic equipment such as a mobile phone with limited space. Of course, in other embodiments, the number of the damping members 2 may be multiple, and the multiple damping members 2 may be annularly disposed on the circumferential side of the rotating wheel 12 and attached to the circumferential side surface of the rotating wheel 12, so that the rotating wheel 12 and the multiple damping members 2 generate a rotational damping force during the rotation process.

The magnet assembly 3 provided by the present application drives the rotating surface 101 to always abut against the damping member 2. The following embodiments exemplify specific structures of the magnet assembly 3, and it is needless to say that the specific structures of the magnet assembly 3 provided in the present application include, but are not limited to, the following embodiments.

In one embodiment, referring to fig. 6 and 10, the magnet assembly 3 includes a first magnet 31 and a second magnet 32 disposed opposite to each other. The first magnet 31 and the second magnet 32 are arranged on the side of the rotor wheel 12 facing away from the damper 2. The damping member 2 is fixedly connected with the rotating shaft base 60. The rotatable wheel 12 is slidable along the first axis of rotation 11. The first magnet 31 and the second magnet 32 repel each other to allow the rotating wheel 12 to approach the damping member 2.

Specifically, referring to fig. 6 and 10, the first magnet 31, the second magnet 32, the rotating wheel 12 and the damping member 2 are sequentially arranged along the axial direction of the first rotating shaft 11, wherein the rotating surface 101 of the rotating wheel 12 is an end surface of the rotating wheel 12. The rotatable wheel 12 is slidable along the first axis of rotation 11. The first magnet 31 and the second magnet 32 are sleeved on the peripheral side surface of the first rotating shaft 11. The first magnet 31 is fixed with respect to the spindle base 60.

Specifically, referring to fig. 9, the rotating shaft base 60 has a receiving groove 603 for receiving the first magnet 31. The first magnet 31 is fixed to the rotary shaft holder 60 by being constrained by the groove wall of the housing groove 603. The second magnet 32 may be separate from the rotator wheel 12 or fixedly attached to the rotator wheel 12. The damping member 2 may be disposed on the first rotating shaft 11 or disposed outside the first rotating shaft 11, which is not limited herein. The damping member 2 is fixed relative to the rotating shaft base 60, and similarly to the first magnet 31, the rotating shaft base 60 may be provided with a receiving groove 604 for receiving the damping member 2, and the damping member 2 cannot rotate along the first rotating shaft 11 under the constraint of the groove wall of the receiving groove 604 so as to be fixed relative to the rotating shaft base 60. The second magnet 32 and the first magnet 31 are spaced apart from each other, and the second magnet 32 and the first magnet 31 generate a magnetic repulsive force therebetween. The first magnet 31 cannot be separated from the second magnet 32 due to the constraint of the receiving groove 603, and the second magnet 32 is separated from the first magnet 31 under the magnetic repulsive force of the first magnet 31, that is, the second magnet 32 drives the rotating wheel 12 to approach the damping member 2 along the first rotating shaft 11. The damping member 2 is constrained by the groove wall of the receiving groove 604 so as not to be away from the rotator 12, so that the rotating surface 101 of the rotator 12 is closely attached to the damping member 2 when the rotator 12 is pushed by the second magnet 32 to approach the damping member 2. When the rotating wheel 12 rotates, a rotational damping force is generated between the rotating wheel 12 and the damping member 2, so that a damping feeling is ensured in the folding process of the foldable housing assembly 10, and the foldable housing assembly 10 can be positioned at any bending angle, thereby facilitating a user to freely bend the foldable housing assembly 10.

Through setting up first magnet 31, second magnet 32 and being located the one side that the runner 12 deviates from damping piece 2, first magnet 31 and second magnet 32 produce great magnetic repulsion under less interval distance to produce great thrust to runner 12, with drive runner 12 butt damping piece 2 all the time, be convenient for form the damping when collapsible housing assembly 10 is folding and feel. Since the distance between the first magnet 31 and the second magnet 32 is small, the length in the X-axis direction occupied by the first magnet 31, the second magnet 32, the rotating wheel 12, and the damping member 2 is small, thereby reducing the space occupied by the first rotating shaft assembly 70; moreover, compared with a spring or the like, since the first magnet 31 and the second magnet 32 are not worn or deformed after being used for a long time, the magnetic force between the first magnet 31 and the second magnet 32 can be kept better for a long time, so that the reliability of the foldable device 100 is stronger.

It is understood that the first and

second magnets

31 and 32 may be permanent magnets. In other embodiments, the first magnet 31 and the second magnet 32 may be both electromagnets, or one may be an electromagnet and the other a permanent magnet. When the first magnet 31 or the second magnet 32 is an electromagnet, the direction and magnitude of the magnetic force between the first magnet 31 and the second magnet 32 may be made adjustable, so that the magnitude of the rotational damping force between the rotating wheel 12 and the damping member 2 may be adjusted. In another embodiment, the magnet assembly 3 includes a first magnet 31 and a second magnet 32 disposed opposite to each other. The rotating wheel 12 and the damper 2 are disposed between the first magnet 31 and the second magnet 32. The rotatable wheel 12 is slidable along the first axis of rotation 11. The first magnet 31 and the second magnet 32 are attracted to each other, so that the rotating wheel 12 is close to the damping member 2; alternatively, the rotating wheel 12 and the damping member 2 can slide along the first rotating shaft 11, and the first magnet 31 and the second magnet 32 attract each other, so that the rotating wheel 12 and the damping member 2 approach each other.

Specifically, referring to fig. 13, the first magnet 31, the rotating wheel 12, the damping member 2 and the second magnet 32 are sequentially arranged along the axial direction of the first rotating shaft 11. The rotating surface 101 of the rotating wheel 12 is an end surface of the rotating wheel 12. The first magnet 31 is disposed around the outer circumferential surface of the first rotating shaft 11. The second magnet 32 and the damper 2 may be sleeved on the outer circumferential surface of the first rotating shaft 11 or outside the first rotating shaft 11. In one case, referring to fig. 13, the second magnet 32 and the damping member 2 are sleeved on the outer peripheral surface of the first rotating shaft 11. In this case, the first magnet 31 may be fixed with respect to the spindle base 60, the second magnet 32 and the damping member 2 may be capable of sliding along the first spindle 11, the first magnet 31 and the second magnet 32 generate a magnetic attraction force with each other, and the second magnet 32 pushes the damping member 2 to approach the rotary wheel 12 under the magnetic attraction force until the damping member is closely attached to the rotary wheel 12. Alternatively, the second magnet 32 may be fixed with respect to the shaft base 60, the first magnet 31 and the rotating wheel 12 may be capable of sliding along the first rotating shaft 11, the first magnet 31 and the second magnet 32 generate a magnetic attraction force with each other, and the first magnet 31 pushes the rotating wheel 12 to approach the damping member 2 under the magnetic attraction force until the first magnet is closely attached to the damping member 2. Alternatively, referring to fig. 14, the second magnet 32 and the damping member 2 are disposed outside the first shaft 11, and the damping member 2 is close to or abutted against the end of the first shaft 11. The damping member 2 and the second magnet 32 are fixed relative to the rotating shaft base 60, the first magnet 31 and the rotating wheel 12 can slide along the first rotating shaft 11, the first magnet 31 and the second magnet 32 mutually generate magnetic attraction force, and the first magnet 31 pushes the rotating wheel 12 to be close to the damping member 2 under the magnetic attraction force until the first magnet is tightly attached to the damping member 2.

The rotating wheel 12 is fixedly connected with the first magnet 31, and the damping piece 2 is fixedly connected with the second magnet 32, so that the whole volume of the rotating wheel 12 and the damping piece 2, and the first magnet 31 and the second magnet 32 is reduced, and the miniaturization of the first rotating shaft assembly 70 is facilitated. The rotating wheel 12 and the damping piece 2 are arranged between the first magnet 31 and the second magnet 32, and the first magnet 31 and the second magnet 32 are arranged to be magnetically attracted, so that the rotating wheel 12 and the damping piece 2 are always abutted, and the rotating wheel 12 is ensured to maintain a rotating damping force in the rotating process; in this embodiment, the rotating wheel 12, the damping member 2, the first magnet 31 and the second magnet 32 are closely attached, so that the lengths of the first magnet 31, the second magnet 32, the rotating wheel 12 and the damping member 2 in the X-axis direction are further reduced, and the space occupied by the first rotating shaft assembly 70 is further reduced compared with the first embodiment.

In yet another embodiment, referring to fig. 15, the magnet assembly 3 includes a first magnet 31 and a second magnet 32 disposed oppositely. The first magnet 31 and the second magnet 32 are arranged on the side of the damping element 2 facing away from the rotor wheel 12. The damping member 2, the first magnet 31 and the second magnet 32 may be sleeved on the periphery of the first rotating shaft 11. The first magnet 31 is fixed with respect to the spindle base 60. The second magnet 32 is disposed between the first magnet 31 and the damping member 2, and the second magnet 32 may be coupled to the damping member 2. The second magnet 32 and the damper 2 are slidable in the axial direction of the first rotary shaft 11. The rotating wheel 12 is fixedly connected with the first rotating shaft 11. The first magnet 31 and the second magnet 32 repel each other, and the second magnet 32 pushes the damping member 2 close to the rotary wheel 12 until it abuts against the rotary wheel 12 under the magnetic repulsive force of the first magnet 31. Of course, in other embodiments, the magnet assembly 3 and the damping member 2 may be provided outside the first rotation shaft 11. The magnet assembly 3, the damper 2 and the rotating wheel 12 may be arranged along the axial direction of the first rotating shaft 11, or may be arranged along the radial direction of the first rotating shaft 11.

The first magnet 31 and the second magnet 32 are arranged on one side of the damping piece 2 departing from the rotating wheel 12, the damping piece 2 is used as a moving piece, the damping piece 2 is close to the rotating wheel 12 and attached to the rotating wheel 12 under the action of the second magnet 32, so that the rotating wheel 12 always receives a rotating damping force in the rotating process, the foldable shell component 10 is positioned at any bending angle, and a user can bend the foldable device 100 freely.

The present application includes, but is not limited to, the following embodiments with respect to the positional relationship between the damper 2 and the first rotating shaft 11.

Referring to fig. 6, in one embodiment, the damping member 2 and the magnet assembly 3 are both disposed on the outer peripheral surface of the first rotating shaft 11. Specifically, the magnet assembly 3 includes a first magnet 31 and a second magnet 32. The first magnet 31, the second magnet 32, the rotating wheel 12 and the damping member 2 are all sleeved on the outer peripheral surface of the first rotating shaft 11. The first magnet 31 is fixed with respect to the spindle base 60. The second magnet 32 is connected to the rotary wheel 12, and the damper 2 is fixed with respect to the rotary shaft holder 60. The second magnet 32 pushes the rotary wheel 12 against the damping member 2 under the magnetic repulsive force of the first magnet 31, so that a rotary damping force is generated between the rotary wheel 12 and the damping member 2.

The damping member 2, the first magnet 31 and the second magnet 32 are all sleeved on the outer peripheral surface of the first rotating shaft 11, so that the first magnet 31, the second magnet 32, the rotating wheel 12 and the damping member 2 are arranged along the X-axis direction, the magnetic force between the first magnet 31 and the second magnet 32 is along the axial direction of the first rotating shaft 11, and the rotating wheel 12 can be attached to the damping member 2 by sliding along the first rotating shaft 11 under the pushing of the second magnet 32.

In another embodiment, referring to fig. 14, the first magnet 31, the rotating wheel 12, the damping member 2 and the second magnet 32 are arranged along the axial direction of the first rotating shaft 11. The damping member 2 is located outside the first shaft 11. Specifically, the magnet assembly 3 includes a first magnet 31 and a second magnet 32. The first magnet 31 is sleeved on the outer circumferential surface of the first rotating shaft 11 and connected to the rotating wheel 12. The damping piece 2 is attached to the rotating wheel 12, and the second magnet 32 is arranged on one side of the damping piece 2, which is far away from the rotating wheel 12. The first magnet 31 and the second magnet 32 are magnetically attracted to each other, so that the damping member 2 is close to the rotating wheel 12 and attached to the rotating wheel 12. Compared to the case where the first rotating shaft 11 penetrates the rotating wheel 12, in the present embodiment, the area of the rotating surface 101 of the rotating wheel 12 is large, the contact area between the rotating surface 101 and the damping material 2 is large, and the rotating damping force between the rotating surface 101 and the damping material 2 is constant, so that the rotating wheel 12 and the damping material 2 can be reduced in size, and the size of the first rotating shaft assembly 70 can be reduced.

The structure of the damper 2 in the present application includes, but is not limited to, the following embodiments.

In one embodiment, referring to fig. 7 and 10, a plurality of first convex teeth 21 are disposed on a surface of the damping member 2 attached to the rotating surface 101. The plurality of first teeth 21 are annularly arranged. The plurality of first teeth 21 are uniformly distributed in a radial shape along the circumferential direction of the first rotating shaft 11. The extending direction of the plurality of first teeth 21 is along the axial direction of the first rotating shaft 11. A groove 22 is formed between two adjacent first teeth 21. At least one second tooth 23 is provided on the rotating surface 101. The second convex tooth 23 can be engaged in the concave groove 22. When the rotating wheel 12 rotates, the second tooth 23 can move from one groove 22 to the other groove 22. When the foldable housing assembly 10 is unfolded or folded, the second teeth 23 are disposed in different grooves 22, which not only can provide a pause feeling when the foldable device 100 is folded in place and unfolded in place, but also can provide a pause feeling when the foldable device 100 is in an intermediate position, for example, unfolded at 30 degrees or 60 degrees, so that the opening and closing hand feeling of the foldable device 100 is better.

In one embodiment, referring to fig. 16, the first shaft assembly 70 further includes a magnetic shield 4. The magnetic shield 4 is attached to the inner surface of the spindle base 60 in a region corresponding to the magnet assembly 3.

Specifically, the material of the magnetic shield 4 may be a metal such as iron or molybdenum, or an alloy. The magnetic shield 4 may be in a thin plate shape and attached to the inner surface of the rotating shaft base 60 to magnetically shield the region where the magnet assembly 3 is located, thereby preventing the external metal or magnet from damaging the magnetic field and preventing the rotating wheel 12 from contacting the damper 2. In general, since the magnetic force of the magnet assembly 3 is susceptible to disturbance, the magnetic force of the magnet assembly 3 is unstable. It is not easily conceivable by the person skilled in the art to use the magnetic force of the magnet assembly 3 as the abutment force between the rotatable wheel 12 and the damping member 2. However, the present application can effectively prevent the external metal or the magnet from destroying the magnetic field and preventing the rotating wheel 12 from abutting the damping member 2 by providing the magnetic shielding member 4, so as to stabilize the magnetic force of the magnet assembly 3, and provide stable driving force for the rotating wheel 12 and the damping member 2, so as to ensure that the rotating wheel 12 always abuts the damping member 2, thereby improving the damping feeling of the foldable device 100.

Specifically, referring to fig. 5 and 9, the first shaft assembly 70 further includes a second shaft 13 and a synchronous gear set 14. The second shaft 13 is juxtaposed to the first shaft 11. The second rotation shaft 13 extends in the X-axis direction. The synchronous gear set 14 is connected between the first rotating shaft 11 and the second rotating shaft 13. When the first rotating shaft 11 rotates, the synchronous gear set 14 drives the second rotating shaft 13 to synchronously rotate in the opposite direction under the driving of the first rotating shaft 11. The first shaft 11 is connected to the first housing 30, and the second shaft 13 is connected to the second housing 40. When the first rotating shaft 11 and the second rotating shaft 13 rotate reversely and synchronously, the first housing 30 and the second housing 40 are driven to rotate reversely, so that the stress on the bending part of the flexible display screen 20 is uniform, and the damage to the flexible display screen 20 is reduced.

Referring to fig. 9, the first rotating shaft assembly 70 further includes a third rotating shaft 15 and a fourth rotating shaft 16 parallel to the first rotating shaft 11 and disposed between the first rotating shaft 11 and the second rotating shaft 13. The first rotating shaft 11 and the second rotating shaft 13 are respectively close to two sides of the rotating shaft seat 60. The first rotating shaft 11 is close to one side of the rotating shaft seat 60 connected with the second shell 40. The second rotating shaft 13 is close to one side of the rotating shaft base 60 connected with the first shell 30. The second rotating shaft 13, the third rotating shaft 15 and the fourth rotating shaft 16 are rotatably connected to the rotating shaft base 60. Specifically, the first rotating shaft 11, the second rotating shaft 13, the third rotating shaft 15 and the fourth rotating shaft 16 all penetrate through the first partition 641 and the second partition 642 on the rotating shaft base 60, and the first rotating shaft 11, the second rotating shaft 13, the third rotating shaft 15 and the fourth rotating shaft 16 all can rotate in the through hole 602 on the first partition 641 and the second partition 642.

Referring to fig. 9, the synchronizing gear set 14 includes a first gear 141, a second gear 142, a third gear 143, and a fourth gear 144, which are sequentially engaged with each other. The first gear 141, the second gear 142, the third gear 143, and the fourth gear 144 are disposed between the first partition 641 and the second partition 642. The first gear 141 is sleeved on the outer peripheral surface of the first rotating shaft 11. The first gear 141 and the rotating member 1 are disposed along the X-axis direction. The second gear 142 is sleeved on the outer peripheral surface of the third rotating shaft 15. The third gear 143 is disposed on the outer peripheral surface of the fourth shaft 16. The fourth gear 144 is sleeved on the outer peripheral surface of the second rotating shaft 13.

Referring to fig. 9, the first rotating shaft assembly 70 further includes a first rotating shaft handle 17 and a second rotating shaft handle 18. The first end 171 of the first shaft handle 17 is sleeved on the outer peripheral surface of the first shaft 11. The second end 172 of the first shaft handle 17 is adjacent to the second shaft 13 and is rotatably coupled to the first housing 30. The first end 181 of the second shaft handle 18 is connected to the second shaft 13. The second end 182 of the second pivot handle 18 is adjacent the first pivot 11 and is rotatably coupled to the second housing 40.

When the first housing 30 rotates the first rotation shaft 17, the first rotation shaft 11 rotates along with the rotation of the first rotation shaft 17. The first rotating shaft 11 drives the first gear 141 to rotate, and the first gear 141, the second gear 142, the third gear 143, and the fourth gear 144 sequentially transmit the rotation, so that the second rotating shaft 13 and the second rotating shaft 13 synchronously rotate in opposite directions, and the second rotating shaft 13 drives the second rotating shaft handle 18 to rotate, and further drives the second housing 40 to rotate, so that the first housing 30 and the second housing 40 synchronously rotate in opposite directions.

When the first shell 30 drives the first rotating shaft handle 17 to rotate, the first rotating shaft 11 rotates along with the first rotating shaft 11, and the rotating surface 101 of the rotating wheel 12 rubs against the damping piece 2 to generate a rotating damping force, so that a damping feeling is provided for the folding of the foldable shell.

Further, the second spindle shank 18 is adjacent to a short side plate 62 of the spindle base 60. The synchronizing gear set 14 is provided between the second and first turning axis levers 18 and 17. The magnet assembly 3, the rotor wheel 12 and the damper element 2 are arranged on the side of the first pivot lever 17 facing away from the synchronous gear set 14.

In other embodiments, the magnet assembly 3, the rotating member 1 and the damping member 2 may be sleeved on the outer peripheral surface of the second rotating shaft 13. The damper 2 may be fitted on the short side plate 62 of the spindle base 60, and the rotor 1 and the magnet assembly 3 may be disposed between the second spindle shank 18 and the short side plate 62 of the spindle base 60. The magnet assembly 3 generates a magnetic repulsive force to abut the rotor 1 against the damper 2. The embodiment can make full use of the space between the second spindle shank 18 and the short side plate 62 of the spindle base 60, and improve the space utilization rate in the spindle base 60.

The axis of rotation of the first housing 30 is the second end 172 of the first pivot handle 17 and the axis of rotation of the first pivot handle 17 is the first axis of rotation 11. When the foldable device 100 is folded from the unfolded state to the folded state, the first housing 30 rotates in the counterclockwise direction, and during the rotation, the first housing 30 lifts the second end 172 of the first pivot handle 17, so that the first pivot handle 17 rotates the first pivot 11. When the first housing 30 is rotated to the folded state of the foldable device 100, the rotation angle of the first housing 30 is close to 90 °, and at this time, the rotation angle of the first rotation axis handle 17 is smaller than 90 °. In other words, in the process of folding the foldable housing assembly 10 from the unfolded state to the folded state, the rotation angle of the first rotation shaft handle 17 is smaller than that of the first housing 30, the rotation angle of the first rotation shaft handle 17 is smaller, the space reserved for the rotation of the first rotation shaft handle 17 in the rotation shaft base 60 is small, and thus the size of the rotation shaft assembly 50 can be reduced.

Since the rotation angle of the first rotation shaft lever 17 is small so that the rotation angle of the first rotation shaft 11 is small and the rotation angles of the first gear 141, the second gear 142, the third gear 143, and the fourth gear 144 are small, the gear installation regions of the first gear 141, the second gear 142, the third gear 143, and the fourth gear 144 are also small. Specifically, the first gear 141 may be provided with insections at an area opposite to the second gear 142, and other areas of the first gear 141 may not be insected. The same applies to the second gear 142, the third gear 143, and the fourth gear 144, so that the area of the first gear 141, the second gear 142, the third gear 143, and the fourth gear 144 where the gears are provided is small, and the space occupied by the first gear 141, the second gear 142, the third gear 143, and the fourth gear 144 is also small.

Referring to fig. 9, the first and

second pivot shanks

17 and 18 are curved. When the foldable housing assembly 10 is folded, the second end 172 of the first pivot handle 17 and the second end 182 of the second pivot handle 18 are brought closer together so that the first pivot handle 17 is interleaved with the second pivot handle 18 and forms an arc-shaped space for receiving the flexible display screen 20.

Referring to fig. 2 and 3, the first housing 30 includes a first connecting portion 301 and a second connecting portion 302 slidably connected to each other. The first coupling portion 301 rotatably couples the second end 172 of the first spindle hub 17 of the first spindle assembly 70 to the second end 182 of the second spindle hub 18 of the second spindle 13 assembly 80. The second housing 40 includes a third connecting portion 401 and a fourth connecting portion 402 that are slidably coupled, the third connecting portion 401 rotatably coupling the second end 182 of the second spindle shaft 18 of the first spindle assembly 70 to the second end 172 of the first spindle shaft 17 of the second spindle 13 assembly 80.

When the foldable housing assembly 10 is folded, the first connection portion 301 and the second connection portion 302 are away from each other, and the third connection portion 401 and the fourth connection portion 402 are away from each other, so that the lengths of the first housing 30 and the second housing 40 are extended. In other words, the first housing 30 is formed by splicing the first connection portion 301 and the second connection portion 302 which are connected in a sliding manner, and the first connection portion 301 and the second connection portion 302 can slide relative to each other. When the foldable housing assembly 10 is folded, the first housing 30 and the second housing 40 are subjected to tensile stress due to the difference in the bending radius between the inner side of the folding and the outer side of the folding of the foldable device 100. By providing the first and

second housings

30, 40 as telescoping structures, the tensile stress experienced by the first and

second housings

30, 40 is relieved, facilitating the folding of the foldable housing assembly 10.

It is understood that when the first connection portion 301 and the second connection portion 302 are far away from each other, a gap between the first connection portion 301 and the second connection portion 302 may be sealed by a partial region of the second connection portion 302 to ensure the sealing property of the first housing 30. When the third connection portion 401 and the fourth connection portion 402 are away from each other, a gap between the third connection portion 401 and the fourth connection portion 402 may be sealed by a partial region of the fourth connection portion 402 to ensure sealability of the second housing 40.

When the foldable shell assembly 10 is unfolded and flat, the first shell 30 and the second shell 40 are no longer under tensile stress, the first connecting portion 301 and the second connecting portion 302 are restored to be abutted against each other, and no gap exists between the first connecting portion 301 and the second connecting portion 302; the third connection portion 401 and the fourth connection portion 402 are also restored to be in contact with each other without a gap between the third connection portion 401 and the fourth connection portion 402.

The foregoing is a partial description of the present application, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations are also regarded as the protection scope of the present application.

Claims

1. The utility model provides a collapsible casing subassembly which characterized in that includes the pivot seat, locates first casing and the second casing of pivot seat both sides and locate first pivot subassembly in the pivot seat, first pivot subassembly includes:

the rotating piece is rotatably connected with the rotating shaft base and comprises a first rotating shaft and a rotating wheel sleeved on the peripheral surface of the first rotating shaft, and the rotating piece is provided with a rotating surface;

the damping piece is attached to the rotating surface of the rotating piece, and when the rotating piece rotates, the rotating surface rotates relative to the damping piece and generates friction force with the damping piece;

The magnetic force generated by the magnet assembly is used for driving the rotating surface of the rotating piece to abut against the damping piece;

the second rotating shaft is arranged in parallel with the first rotating shaft;

the synchronous gear set is connected between the first rotating shaft and the second rotating shaft;

the first end of the first rotating shaft handle is connected with the first rotating shaft, the second end of the first rotating shaft handle is adjacent to the second rotating shaft and is connected with the first shell, the first end of the second rotating shaft handle is connected with the second rotating shaft, and the second end of the second rotating shaft handle is adjacent to the first rotating shaft and is connected with the second shell;

when the first shell drives the second end of the first rotating shaft handle to rotate, the first rotating shaft rotates, a rotating surface of the rotating wheel rubs against the damping piece, and the synchronous gear set drives the second rotating shaft and the second rotating shaft handle to rotate under the rotation of the first rotating shaft so as to drive the second shell and the first shell to synchronously rotate in the opposite direction;

the first shell is arranged on one side relatively far away from the first rotating shaft and is connected with the first rotating shaft; the second shell is arranged on one side relatively far away from the second rotating shaft and is connected with the second rotating shaft.

2. The foldable housing assembly of claim 1, wherein the first rotating shaft is rotatably connected to the rotating shaft seat, the rotating wheel is capable of rotating along with the rotation of the first rotating shaft, and the rotating surface is an end surface or a peripheral side surface of the rotating wheel.

3. The foldable housing assembly of claim 2, wherein the rotation surface is an end surface of the rotation wheel, and the damping member, the rotation wheel, and the magnet assembly are arranged along an axial direction of the first rotation shaft.

4. The foldable housing assembly of claim 2, wherein the rotation surface is a circumferential side surface of the rotation wheel, the damper has an arc surface matching the rotation surface, and the damper, the rotation wheel and the magnet assembly are arranged in a radial direction of the first rotation axis.

5. The foldable housing assembly of claim 3, wherein the magnet assembly comprises a first magnet and a second magnet disposed opposite to each other, the first magnet and the second magnet are disposed on a side of the rotating wheel facing away from the damping member, the damping member is fixedly connected to the rotating shaft seat, the rotating wheel is capable of sliding along the first rotating shaft, and the first magnet and the second magnet repel each other to allow the rotating wheel to approach the damping member and fit the damping member.

6. The foldable housing assembly of claim 3, wherein the magnet assembly comprises a first magnet and a second magnet disposed opposite to each other, the rotating wheel and the damping member are disposed between the first magnet and the second magnet, the rotating wheel is capable of sliding along the first rotating shaft, and the first magnet and the second magnet attract each other to enable the rotating wheel to approach the damping member and to fit against the damping member; or the rotating wheel and the damping piece can slide along the first rotating shaft, and the first magnet and the second magnet are attracted to each other, so that the rotating wheel and the damping piece are close to each other and attached to each other.

7. The foldable housing assembly of claim 3 or 4, wherein the magnet assembly comprises a first magnet and a second magnet disposed opposite to each other, the first magnet and the second magnet are disposed on a side of the damping member facing away from the rotating wheel, the rotating wheel is fixedly connected to the first rotating shaft, and the first magnet and the second magnet repel each other to allow the damping member to approach the rotating wheel and attach to the rotating wheel.

8. The foldable housing assembly of claim 3, wherein the damping member and the magnet assembly are both sleeved on an outer peripheral surface of the first shaft.

9. The foldable housing assembly of claim 3, wherein the damping member is located outside the first shaft.

10. The foldable shell assembly of claim 2, wherein a plurality of first teeth are disposed on a surface of the damping member, which is attached to the rotating surface, the first teeth are annularly disposed, a groove is formed between two adjacent first teeth, a second tooth is disposed on the rotating surface, and when the foldable shell assembly is unfolded or folded, the second tooth is engaged with different grooves.

11. The foldable housing assembly of claim 1, wherein the first spindle assembly further comprises a magnetic shield affixed to an inner surface of the spindle base in an area corresponding to the magnet assembly.

12. The foldable housing assembly of claim 2, wherein the synchronous gear set drives the second shaft to rotate in a synchronous and opposite direction under the driving of the first shaft when the first shaft rotates.

13. The foldable housing assembly of claim 12, wherein the first pivot handle has a smaller angle of rotation than the first housing during the foldable housing assembly from the flattened state to the folded state.

14. The foldable housing assembly of claim 12, wherein the first and second pivot handles are arc-shaped, and when the foldable housing assembly is folded, the first and second pivot handles interleave and form an arc-shaped space for receiving a flexible display screen.

15. The foldable housing assembly of claim 12, wherein the second shaft handle is adjacent to a side of the shaft seat, the synchronizing gear set is disposed between the second shaft handle and the first shaft handle, and the magnet assembly and the damping member are disposed on a side of the first shaft handle facing away from the synchronizing gear set.

16. The foldable housing assembly of claim 12, further comprising a second spindle assembly centrally symmetrically disposed on opposite ends of the spindle base from the first spindle assembly.

17. The foldable housing assembly of claim 16, wherein the first housing includes a first coupling portion and a second coupling portion that are slidably coupled, the first coupling portion coupling the first spindle assembly and the second spindle assembly; the second shell comprises a third connecting part and a fourth connecting part which are connected in a sliding manner, and the third connecting part is connected with the first rotating shaft assembly and the second rotating shaft assembly;

When the foldable shell assembly is folded, the first connecting portion and the second connecting portion are away from each other, and the third connecting portion and the fourth connecting portion are away from each other, so that the lengths of the first shell and the second shell are extended.

18. A foldable device comprising a foldable housing assembly according to any one of claims 1 to 17 and a flexible display screen provided on said foldable housing assembly.