CN210724887U

CN210724887U - Foldable shell assembly and foldable electronic equipment

Info

Publication number: CN210724887U
Application number: CN201922120589.XU
Authority: CN
Inventors: 贾玉虎
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-06-09
Anticipated expiration: 2029-11-28

Abstract

The application provides a collapsible casing subassembly and collapsible electronic equipment, collapsible casing subassembly includes: a rotating shaft assembly; the first shell assembly and the second shell assembly are respectively connected with the rotating shaft assembly in a rotating mode from two sides, at least one first clamping hook is arranged on the first shell assembly, at least one second clamping hook is arranged on the second shell assembly, and when the first shell assembly and the second shell assembly are in a flattening state, the first clamping hook and the second clamping hook are clamped. According to the foldable electronic equipment, the first shell assembly and the second shell assembly do not generate dislocation or the dislocation is small as much as possible when the foldable electronic equipment falls to the ground, so that the falling reliability is improved.

Description

Foldable shell assembly and foldable electronic equipment

Technical Field

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

Background

In foldable electronic equipment such as foldable cell-phone, the casing of pivot subassembly connection both sides, when the flexible display screen is expanded state and fold condition and is switched over each other, probably exist and do not expand totally, the flexible display screen of pivot subassembly part appears fold, reverse buckling because of length redundancy. In addition, when the foldable electronic device accidentally falls down in the unfolded state, the flexible display screen is easy to dislocate in the rotating shaft assembly area between the left shell assembly and the right shell assembly, so that the failure of the flexible display screen is caused. Therefore, how to make the left housing component and the right housing component not generate the dislocation when the foldable electronic device falls to the ground or the dislocation is as small as possible becomes a technical problem to be solved.

SUMMERY OF THE UTILITY MODEL

The application provides a foldable shell assembly and a foldable electronic device which can effectively improve the falling reliability.

In a first aspect, the present application provides a foldable housing assembly comprising:

a rotating shaft assembly;

the first shell assembly and the second shell assembly are respectively connected with the rotating shaft assembly in a rotating mode from two sides, at least one first clamping hook is arranged on the first shell assembly, at least one second clamping hook is arranged on the second shell assembly, and when the first shell assembly and the second shell assembly are in a flattening state, the first clamping hook and the second clamping hook are clamped.

In a second aspect, the present application provides a foldable electronic device, including a flexible display screen and the foldable housing assembly, the flexible display screen is disposed on the foldable housing assembly, and can be bent along with bending of the foldable housing assembly, and can be flattened along with flattening of the foldable housing assembly.

The first clamping hook and the second clamping hook are arranged on the first shell assembly and the second shell assembly respectively, and when the first shell assembly and the second shell assembly are in a flat state, the first clamping hook is clamped and connected with the second clamping hook, so that the first shell assembly and the second shell assembly are connected into an integral machine shell which provides leveling support for the flexible display screen, the flexible display screen is completely unfolded, wrinkles or reverse bending cannot occur, and the expressive force of the foldable electronic equipment is improved; moreover, the first shell assembly and the second shell assembly are connected into an integral shell, so that the foldable electronic equipment can be effectively prevented from loosening when accidentally falling under the unfolded state, the flexible display screen is prevented from being out of work due to dislocation, the reliability of the flexible display screen is improved, and the stability of the foldable electronic equipment is improved.

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 perspective view of a foldable electronic device provided in an embodiment of the present application;

fig. 2 is a top view of a foldable electronic device provided in an embodiment of the present application;

fig. 3 is a structural exploded view of a foldable electronic device according to 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 cross-sectional view of the foldable electronic device provided in FIG. 2 taken along line A-A;

FIG. 6 is a partial schematic view of FIG. 5;

FIG. 7 is a schematic structural diagram of a first housing assembly and a second housing assembly provided by an embodiment of the present application;

FIG. 8 is an enlarged partial schematic view of FIG. 6;

fig. 9 is a schematic structural diagram of a first hook and a second hook according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of a first hook and a second hook according to another embodiment of the present disclosure;

FIG. 11 is a partial schematic view of a plurality of first hooks and a plurality of second hooks according to an embodiment of the present disclosure;

fig. 12 is a partial schematic view of a card reader provided with a first elastic hook and a second elastic hook according to an embodiment 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure.

For foldable electronic devices such as foldable mobile phones, in order to realize bending of the flexible display screen, two ends of the flexible display screen are respectively fixed on the left shell component and the right shell component. When the foldable electronic device is switched between the unfolded state and the folded state, the part of the flexible display screen corresponding to the rotating shaft assembly is bent. In order to ensure free bending of the flexible display screen, the flexible display screen corresponding to the rotating shaft assembly is not adhered to the rotating shaft assembly or the shell assembly. However, this brings with it new problems: when the flexible display screen is mutually switched between the unfolding state and the folding state, because no reliable mechanism supports the flexible display screen to be completely unfolded, the flexible display screen has folds or even reverse bending due to the redundant length of the part corresponding to the rotating shaft assembly. In addition, if the foldable electronic device accidentally falls down in the unfolded state, the flexible display screen is easy to dislocate due to the fact that the shell assembly on the left side, the shell assembly on the right side and the rotating shaft assembly are not firmly connected, and accordingly the flexible display screen is out of order.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a foldable electronic device according to an embodiment of the present disclosure. The foldable electronic 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 other display devices. It is to be understood that the foldable electronic device 100 may also be a foldable non-display device. The present application exemplifies a foldable mobile phone. In this embodiment, the length direction of the foldable electronic device 100 is defined as the Y-axis direction. The width direction of the foldable electronic device 100 is defined as the X-axis direction. The thickness direction of the foldable electronic device 100 is defined as the Z-axis direction. The bending axis of the foldable electronic device 100 is along the Y-axis direction.

Referring to fig. 1 and fig. 2, the foldable electronic device 100 includes a foldable housing assembly 10 and a flexible display 20 disposed on the foldable housing assembly 10. The flexible display 20 is disposed on the foldable housing assembly 10 and can be bent along with the bending of the foldable housing assembly 10 and can be flattened along with the flattening of the foldable housing assembly 10.

Referring to fig. 3, the foldable housing assembly 10 includes a rotating shaft assembly 1, a first housing assembly 2 and a second housing assembly 3.

The first housing assembly 2 and the second housing assembly 3 are respectively rotatably connected to two opposite sides of the rotating shaft assembly 1, so that the first housing assembly 2 and the second housing assembly 3 can be folded or unfolded. The flexible display screen 20 is arranged on the first shell component 2, the rotating shaft component 1 and the second shell component 3. Specifically, the flexible display 20 is fixedly connected to the first housing assembly 2 and the second housing assembly 3. The flexible display screen 20 is not fixedly connected with the rotating shaft assembly 1, so that the bending part of the flexible display screen 20 can be freely bent.

Referring to fig. 4, in an embodiment, the rotating shaft assembly 1 further includes a rotating shaft base 11, a first rotating member 12 and a second rotating member 13. The first rotating member 12 and the second rotating member 13 are rotatably connected to the rotary shaft base 11 from both sides of the rotary shaft base 11. One end of the first rotating member 12 away from the rotating shaft seat 11 is fixedly connected with the first shell assembly 2. One end of the second rotating piece 13 far away from the rotating shaft base 11 is fixedly connected with the second shell component 3. The first housing assembly 2 and the second housing assembly 3 drive the first rotating member 12 and the second rotating member 13 to rotate around the rotating shaft base 11 in the process of gradually closing to the folded state or gradually expanding to the flattened state.

Referring to fig. 5, the first housing assembly 2 includes a first housing 21 and a first supporting plate 22 fixedly connected to each other. The first housing 21 has a first end 211 and a second end 212 disposed opposite to each other. The second housing component 3 includes a second casing 31 and a second supporting plate 32 fixedly connected to each other. The second housing 31 has a third end 311 and a fourth end 312 disposed opposite to each other. When the foldable electronic device 100 is in the unfolded state, the first housing 21 and the second housing 31 are disposed on the same plane, the first end 211 of the first housing 21 is abutted to the third end 311 of the second housing 31, and the first housing 21, the second housing 31 and the flexible display 20 are integrated to form an integral housing of the foldable electronic device 100.

In the process of gradually transforming the foldable electronic device 100 from the flat state to the folded state, the first housing 21 and the second housing 31 use the central axis of the rotating shaft assembly 1 as the rotating shaft and gradually get closer from both sides. When the foldable electronic device 100 is in the folded state, the second end 212 of the first housing 21 abuts the fourth end 312 of the second housing 31.

Referring to fig. 5 and 6, a surface of the first housing 21 facing the flexible display 20 has a first notch groove 213. The edge of the opening of the first notch groove 213 extends to the end surface of the first end 211 of the first housing 21. The first supporting plate 22 is fixedly connected to an end of the first rotating member 12 away from the spindle base 11. The first support plate 22 covers the first notch 213 of the first housing 21 from the side where the flexible display 20 is located, and surrounds the first housing 21 to form a first groove 214. Wherein the opening of the first groove 214 is arranged on the end surface of the first end 211 of the first housing 21.

Similarly, referring to fig. 5 and fig. 6, a surface of the second housing 31 facing the flexible display panel 20 has a second notch groove 313. An edge of an opening of the second notch groove 313 extends to an end surface of the third end 311 of the second housing 31. The second supporting plate 32 is fixedly connected to an end of the second rotating member 13 away from the rotating shaft base 11. The second supporting plate 32 covers the second notch 313 of the second housing 31 from the side where the flexible display 20 is located, and surrounds the second housing 31 to form a second groove 314. Wherein, the opening of the second groove 314 is arranged on the end surface of the third end 311 of the second housing 31.

When the foldable electronic device 100 is in the unfolded state, the end of the first housing component 2 having the first groove 214 abuts against the end of the second housing component 3 having the second groove 314, and the first groove 214 is communicated with the second groove 314 to form a third groove 315 (see fig. 6), so as to accommodate the rotating shaft seat 11 in the third groove 315.

Referring to fig. 7 and 8, at least one first hook 5 is disposed on the first housing component 2. At least one second hook 6 is arranged on the second shell component 3. In one embodiment, one end of the first hook 5 is disposed in the first groove 214 and is fixedly connected to the first support plate 22. The other end of the first hook 5 extends out of the first groove 214. One end of the second hook 6 is disposed in the second groove 314 and is fixedly connected to the second support plate 32. The other end of the second hook 6 extends out of the second groove 314.

Referring to fig. 7 and 8, when the first housing assembly 2 and the second housing assembly 3 are in the flat state, one end of the first housing assembly 2 abuts against one end of the second housing assembly 3, and one end of the first hook 5 extending out of the first groove 214 is connected with one end of the second hook 6 extending out of the second groove 314 in a snap-fit manner, so that the first housing assembly 2 and the second housing assembly 3 are connected into a whole.

The first clamping hook 5 and the second clamping hook 6 are respectively arranged on the first shell component 2 and the second shell component 3, and when the first shell component 2 and the second shell component 3 are in a flattening state, the first clamping hook 5 is clamped and connected with the second clamping hook 6, so that the first shell component 2 and the second shell component 3 are connected into an integral machine shell which provides leveling support for the flexible display screen 20, the flexible display screen 20 is completely unfolded, wrinkles or reverse bending cannot occur, and the expressive force of the foldable electronic device 100 is improved; moreover, the first housing component 2 and the second housing component 3 are connected to form an integral housing, which can effectively prevent the foldable electronic device 100 from being loosened or colliding with each other to cause dislocation when accidentally falling in the unfolded state, prevent the flexible display screen 20 from causing dislocation and failure, improve the reliability of the flexible display screen 20, and improve the stability of the foldable electronic device 100.

By respectively arranging the first hook 5 and the second hook 6 on the first support plate 22 and the second support plate 32, when the first hook 5 and the second hook 6 rotate along with the first housing assembly 2 and the second housing assembly 3, the first groove 214 and the second groove 314 provide a space for the rotation of the first hook 5 and the second hook 6, so that the first hook 5 and the second hook 6 can smoothly rotate along with the first housing assembly 2 and the second housing assembly 3.

Of course, in other embodiments, the first and

second hooks

5 and 6 may also be provided on the first and

second housings

21 and 31. For example, the first hook 5 is disposed on the bottom wall of the first groove 214 and the second hook 6 is disposed on the bottom wall of the second groove 314.

In other words, the application provides a mutual buckling design of the housing components, so that the flexible display screen 20 is kept to be completely unfolded in the unfolding state, redundancy of the flexible display screen 20 in the region of the rotating shaft component 11 is avoided, and dislocation of the first housing component 2 and the second housing component 3 when the foldable electronic device 100 falls to the ground in the unfolding state is avoided, so that impact on the flexible display screen 20 is reduced, and the problems that the flexible display screen 20 is prone to failure when the flexible display screen 20 is folded, inverted arched and the foldable electronic device 100 is unfolded to fall to the ground can be effectively solved.

It can be understood that, when the first housing assembly 2 and the second housing assembly 3 are folded, the first hook 5 and the second hook 6 are separated by overcoming the fastening connection force between the first hook 5 and the second hook 6, so that the first housing assembly 2 and the second housing assembly 3 are rotated to the folded state, thereby improving the portability of the foldable electronic device 100.

The following embodiments exemplify the positions and structures of the first hook 5 and the second hook 6, and it is a matter of course that the positions and structures of the first hook 5 and the second hook 6 in the present application include, but are not limited to, the following embodiments.

In one embodiment, the first hook 5 and the second hook 6 both extend along a direction in which the first housing component 2 and the second housing component 3 are arranged when being unfolded. The first hook 5 and the second hook 6 are arranged along the direction in which the rotating shaft assembly 1 extends.

Specifically, the first housing component 2 and the second housing component 3 are arranged in the X-axis direction when being flattened. The first hook 5 and the second hook 6 both extend along the X-axis direction. The extending direction of the rotating shaft assembly 1 is the Y-axis direction. The first hook 5 and the second hook 6 are arranged along the Y-axis direction and are clamped with each other. In other words, the first hook 5 and the second hook 6 are not directly opposite to each other in the X-axis direction, but are arranged in a staggered manner, so that the first hook 5 and the second hook 6 are hooked in the Y-axis direction.

Referring to fig. 9, the first hook 5 includes a first main body 51 and a first protrusion 52 integrally connected to each other. The second hook 6 includes a second main body portion 61 and a second protrusion portion 62 integrally connected to each other. The first body 51 and the second body 61 are disposed opposite to each other in the extending direction (Y-axis direction) of the rotary shaft assembly 1. The first body portion 51 and the second body portion 61 are respectively disposed in the first recess 214 and the second recess 314. The first projecting portion 52 and the second projecting portion 62 are provided between the first main body portion 51 and the second main body portion 61. The first projection 52 and the second projection 62 respectively extend out of the first groove 214 and the second groove 314 (see fig. 8).

In other words, the first projecting portion 52 is provided on the side of the first main body portion 51 facing the second main body portion 61. The first main body 51 faces a hook groove formed between the surface of the second main body 61 and the outer surface of the first protrusion 52. The second projecting portion 62 is provided on a side of the second main body portion 61 facing the first main body portion 51. The second body portion 61 faces a hook groove formed between a surface of the first body portion 51 and an outer surface of the second protrusion 62. When the first hook 5 is engaged with the second hook 6, the first protrusion 52 is engaged with the hook groove formed by the second main body 61 and the second protrusion 62, and the second protrusion 62 is engaged with the hook groove formed by the first main body 51 and the first protrusion 52. So, first trip 5 with second trip 6 looks block to the constraint first casing subassembly 2 with second casing subassembly 3 relative motion, and then make first casing subassembly 2 with second casing subassembly 3 forms a whole, can prevent effectively that collapsible electronic equipment 100 from taking place not hard up when falling by accident under the expansion state, prevents that flexible display screen 20 from taking place the dislocation and becoming invalid, improves flexible display screen 20's reliability, improves collapsible electronic equipment 100's stability.

Referring to fig. 9, a first engaging groove 53 is further disposed on a surface of the first main body 51 facing the second main body 61. The first catching groove 53 is adjacent to the first projecting portion 52. A second locking groove 63 is further formed on the surface of the second main body portion 61 facing the first main body portion 51. The second catching groove 63 is adjacent to the second projection 62. When the first hook 5 is engaged with the second hook 6, the first protrusion 52 is engaged with the second engaging groove 63. The second protruding portion 62 is clamped in the first clamping groove 53. Therefore, the firmness of the clamping connection between the first clamping hook 5 and the second clamping hook 6 is improved.

Further, the first card slot 53 penetrates the first body 51 in the Z-axis direction, and the second card slot 63 penetrates the second body 61 in the Z-axis direction. When the first housing assembly 2 and the second housing assembly 3 are rotated from the flat state to the folded state, the first hook 5 and the second hook 6 can move relatively in the Z-axis direction to separate from each other, so that the first housing assembly 2 and the second housing assembly 3 can be bent, and the first hook 5 and the second hook 6 can be integrated with the first housing assembly 2 and the second housing assembly 3 in the flat state without affecting the bending of the first housing assembly 2 and the second housing assembly 3.

Referring to fig. 9, the first protrusion 52 and the second protrusion 62 are both arc-shaped. The first locking groove 53 is an arc-shaped groove matched with the second protruding part 62. The second locking groove 63 is an arc-shaped groove matched with the first protruding part 52.

Specifically, the first protrusion 52 and the second protrusion 62 are both semicircular protrusions. The first locking groove 53 and the second locking groove 63 are both semicircular grooves. Also, the inner wall of the first catching groove 53 is smoothly connected with the outer wall of the first protrusion 52.

Through designing first bulge 52, second bulge 62, first draw-in groove 53 and second draw-in groove 63 into the arc wall all to the process that makes first draw-in groove 53 block in first bulge 52 and the process that second draw-in groove 63 block in second bulge 62 are more smooth, and the feel when making first casing subassembly 2 and second casing subassembly 3 expand is smooth and easy.

Referring to fig. 9, the first hook 5 further includes a first fixing portion 54. The second hook 6 further includes a second fixing portion 64 opposite to the first fixing portion 54. The first fixing portion 54 and the first fixing portion 54 are fixed to the first support plate 22 and the second support plate 32, respectively.

The first body portion 51 is provided on a side of the first fixing portion 54 facing the second fixing portion 64. The first fixing portion 54 is integrally connected to an end of the first main body portion 51 away from the second housing component 3. The second body portion 61 is provided on a side of the second fixing portion 64 facing the first fixing portion 54. The second fixing portion 64 is connected to an end of the second main body portion 61 away from the second protruding portion 62.

Referring to fig. 10, the first fixing portion 54 is provided with the first accommodating groove 55. The second fixing portion 64 is provided with the second receiving groove 65. When the first hook 5 is engaged with the second hook 6, an end of the first body 51 away from the first fixing portion 54 is engaged with the first receiving slot 55, and an end of the second body 61 away from the second fixing portion 64 is engaged with the second receiving slot 65. First fixed part 54 can be spacing to second trip 6 in the Z axle direction, and second fixed part 64 can be spacing to first trip 5 in the Z axle direction, further improves the connection stability at ordinary times of first casing subassembly 2 and second casing subassembly 3 exhibition, still makes first casing subassembly 2 and second casing subassembly 3 exhibition have the damping sense that targets in place when flat.

Referring to fig. 11, the number of the first hooks 5 and the second hooks 6 is plural. The plurality of first hooks 5 and the plurality of second hooks 6 are arranged at intervals along the extending direction of the rotating shaft assembly 1. And the plurality of first hooks 5 and the plurality of second hooks 6 are engaged and connected one to one.

Further, a plurality of first hooks 5 are arranged along the direction in which the rotating shaft assembly 1 extends, a plurality of second hooks 6 are arranged along the direction in which the rotating shaft assembly 1 extends, and the plurality of first hooks 5 and the plurality of second hooks 6 are engaged and connected one-to-one to increase the connection stability when the first housing assembly 2 and the second housing assembly 3 are flattened.

It can be understood that the first hook 5 and the second hook 6 are made of hard materials, such as hard plastics, metals, etc., so as to increase the connection firmness of the first hook 5 and the second hook 6.

Referring to fig. 12, at least one first elastic hook 7 is disposed on the first housing component 2. And at least one second elastic clamping hook 8 is arranged on the second shell component 3. When the first housing assembly 2 and the second housing assembly 3 are in the flat state, the first elastic hook 7 is engaged with the second elastic hook 8.

Specifically, the first support plate 22 or the first housing 21 may further have a first elastic hook 7. A second elastic hook 8 may be further disposed on the second supporting plate 32 or the second housing 31. The rigidity of the first elastic clamping hook 7 and the second elastic clamping hook 8 is smaller than that of the first clamping hook 5 and the second clamping hook 6. The first elastic hook 7 and the second elastic hook 8 can be made of elastic plastic, and the structure of the first elastic hook 7 and the structure of the second elastic hook 8 can be the same as the structure of the first hook 5 and the structure of the second hook 6.

When the foldable electronic device 100 falls off in the flat state, the first elastic hook 7 and the second elastic hook 8 absorb impact force by generating deformation, so that the first hook 5 and the second hook 6 are prevented from being broken under a rigid impact force to cause the first shell assembly 2 and the second shell assembly 3 to be damaged, the problem that the flexible display screen 20 is damaged in the pulling process of the first shell assembly 2 and the second shell assembly 3 is effectively prevented, and the reliability of the foldable electronic device 100 is improved.

While the foregoing is directed to embodiments of the present application, it will be appreciated by those skilled in the art that various changes and modifications may be made without departing from the principles of the application, and it is intended that such changes and modifications be covered by the scope of the application.

Claims

1. A foldable housing assembly, comprising:

a rotating shaft assembly;

2. The foldable housing assembly of claim 1, wherein the first and second hooks extend along a direction in which the first and second housing assemblies are arranged when unfolded, and the first and second hooks are arranged along a direction in which the rotation shaft assembly extends.

3. The foldable housing assembly of claim 2, wherein the first housing assembly has a first end having a first groove, one end of the first hook is fixedly connected to an inner wall of the first groove, and the other end of the first hook extends out of the first groove;

the second shell assembly is provided with a second end, the second end is provided with a second groove, one end of the second clamping hook is fixedly connected with the inner wall of the second groove, and the other end of the second clamping hook extends out of the second groove;

when the first shell assembly and the second shell assembly are in a flat state, the first end is abutted against the second end, and the other end of the first clamping hook is clamped with the other end of the second clamping hook.

4. The foldable housing assembly of claim 3, wherein the first hook comprises a first main body portion and a first protrusion portion integrally connected to each other, the second hook comprises a second main body portion and a second protrusion portion integrally connected to each other, the first main body portion and the second main body portion are oppositely disposed along an extending direction of the rotating shaft assembly, the first protrusion portion and the second protrusion portion are disposed between the first main body portion and the second main body portion, when the first hook and the second hook are engaged with each other, the first protrusion portion is engaged in a hook groove formed by the second main body portion and the second protrusion portion, and the second protrusion portion is engaged in a hook groove formed by the first main body portion and the first protrusion portion.

5. The foldable shell assembly of claim 4, wherein the first body portion further comprises a first engaging groove adjacent to the first protruding portion, the second body portion further comprises a second engaging groove adjacent to the second protruding portion, when the first engaging hook engages with the second engaging hook, the first protruding portion is engaged with the second engaging groove, and the second protruding portion is engaged with the first engaging groove.

6. The foldable housing assembly of claim 5, wherein the first protrusion and the second protrusion are both arcuate, the first catch is an arcuate slot that mates with the second protrusion, and the second catch is an arcuate slot that mates with the first protrusion.

7. The foldable shell assembly of any one of claims 4 to 6, wherein the first hook further comprises a first fixing portion integrally connected to an end of the first main body portion away from the second shell assembly, the first fixing portion having a first receiving slot;

the second clamping hook further comprises a second fixing part, the second fixing part is connected to one end, far away from the second protruding part, of the second main body part, and a second accommodating groove is formed in the second fixing part;

when the first hook and the second hook are engaged, one end of the first main body part, which is far away from the first fixing part, is engaged in the first accommodating groove, and one end of the second main body part, which is far away from the second fixing part, is engaged in the second accommodating groove.

8. The foldable shell assembly of any one of claims 3 to 6, wherein the first shell assembly comprises a first shell and a first supporting plate, the first shell has a first notch groove, the first supporting plate covers the first notch groove of the first shell and forms the first groove with the first shell, and the first hook is fixedly connected to the first supporting plate.

9. The foldable shell assembly of any one of claims 1 to 6, wherein the number of the first hooks and the second hooks is plural, the plural first hooks and the plural second hooks are all arranged at intervals along the extending direction of the rotating shaft assembly, and the plural first hooks and the plural second hooks are engaged and connected one to one.

10. The foldable shell assembly of any one of claims 1 to 6, wherein the first shell assembly is provided with at least one first elastic hook, the second shell assembly is provided with at least one second elastic hook, and when the first shell assembly and the second shell assembly are in the flat state, the first elastic hook and the second elastic hook are engaged with each other.

11. A foldable electronic device, comprising a flexible display and the foldable housing assembly of any one of claims 1 to 10, wherein the flexible display is disposed on the foldable housing assembly and can be bent along with bending of the foldable housing assembly and unfolded along with unfolding of the foldable housing assembly.