CN106790829B

CN106790829B - Shell assembly, display device and mobile terminal

Info

Publication number: CN106790829B
Application number: CN201710064256.2A
Authority: CN
Inventors: 林煜桂
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-01-26
Filing date: 2017-01-26
Publication date: 2023-08-04
Anticipated expiration: 2037-01-26
Also published as: CN106790829A

Abstract

The invention discloses a shell assembly, a display device and a mobile terminal, wherein the shell assembly comprises a first shell, a second shell capable of overturning relative to the first shell and a connecting module connected between the first shell and the second shell, the connecting module comprises a flexible plate, a connecting piece and a limiting piece, the flexible plate is fixedly connected with the first shell and the second shell, the second shell and the first shell are mutually overturned through bending of the flexible plate, the connecting piece is positioned on one side of the flexible plate and connected between the first shell and the second shell, and can stretch relative to the first shell or/and the second shell, when the second shell is overlapped with the first shell, the connecting piece is abutted against the flexible plate, and the limiting piece is connected with the flexible plate and the connecting piece so as to limit the connecting piece to deflect towards the first shell or the second shell.

Description

Shell assembly, display device and mobile terminal

Technical Field

The invention relates to the field of electronic equipment, in particular to a shell assembly, a display device and a mobile terminal.

Background

At present, the foldable mobile phone is foldable through the shell assembly, so that the flexible display screen is foldable. Typically, a collapsible housing assembly includes two housings that can carry a flexible display screen and a connection module connected between the two housings. So as to prevent the two shells from being separated from each other, and the bending part of the flexible display screen can not be supported after the two shells are overlapped. When a user touches the bending part of the flexible display screen, the hand feeling is poor, and the user experience is reduced. The related art foldable apparatus has drawbacks and needs improvement.

Disclosure of Invention

The embodiment of the invention provides a shell assembly, which comprises a first shell, a second shell capable of overturning relative to the first shell and a connecting module connected between the first shell and the second shell, wherein the connecting module comprises a flexible plate, a connecting piece and a limiting piece, the flexible plate is fixedly connected with the first shell and the second shell, the second shell and the first shell are overturned through bending of the flexible plate, the connecting piece is arranged relative to the flexible plate, when the second shell and the first shell are overlapped, the flexible plate is abutted, and the limiting piece is connected with the flexible plate and the connecting piece so as to limit the connecting piece to deflect towards the first shell or the second shell.

The embodiment of the invention also provides a display device, wherein the display device further comprises the shell assembly, and the display device further comprises a flexible display screen which is sequentially laid on the first shell, the flexible plate and the second shell.

The embodiment of the invention also provides the mobile terminal, wherein the mobile terminal comprises the display device, and the mobile terminal further comprises an electronic component, wherein the electronic component is fixed on the shell component and is electrically connected with the flexible display screen so as to control the flexible display screen to operate.

According to the shell assembly, the display device and the mobile terminal, the limiting piece is connected between the connecting piece and the flexible plate, and the connecting piece is limited to deflect towards the first shell or the second shell, so that the effect that the connecting piece can abut against the flexible plate when the flexible plate is bent is achieved, the bending part of the flexible display screen can be supported by the flexible plate, and user experience is improved.

Drawings

In order to more clearly illustrate the technical solutions of the invention, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the invention and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an exploded schematic view of a mobile terminal provided by the present invention;

FIG. 2 is an assembled schematic view of a first housing of the mobile terminal of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the first housing of FIG. 2;

FIG. 4 is an assembled schematic view of a first housing according to another embodiment

FIG. 5 is an exploded schematic view of the first housing of FIG. 2;

FIG. 6 is an exploded schematic view of a first housing of another embodiment;

FIG. 7 is an exploded view of a first sliding bracket of the first housing of FIG. 5;

FIG. 8 is an exploded view of a first sliding bracket of another embodiment;

FIG. 9 is a schematic cross-sectional view of a first sliding bracket of another embodiment;

FIG. 10 is an exploded view of a second sliding bracket of the first housing of FIG. 5;

FIG. 11 is an exploded schematic view of a second sliding bracket of another embodiment;

FIG. 12 is a schematic cross-sectional view of the first housing and the second housing of FIG. 1 in superposition;

FIG. 13 is another schematic cross-sectional view of the first housing and the second housing of FIG. 1 in superposition;

FIG. 14 is a schematic cross-sectional view of the first housing and the second housing of FIG. 1 opened;

FIG. 15 is another cross-sectional schematic view of the first housing and the second housing of FIG. 1 opened;

FIG. 16 is another exploded view of the first sliding bracket of the first housing of FIG. 5;

FIG. 17 is a schematic cross-sectional view of a first sliding bracket of the first housing of FIG. 5;

FIG. 18 is a schematic cross-sectional view of a second sliding bracket of another embodiment;

FIG. 19 is a schematic cross-sectional view of a first sliding bracket of another embodiment;

FIG. 20 is a schematic cross-sectional view of a first sliding bracket of another embodiment;

FIG. 21 is an enlarged partial schematic view of portion A of FIG. 13;

FIG. 22 is a partially enlarged schematic illustration of portion B of FIG. 15;

FIG. 23 is a schematic cross-sectional view of a first sliding bracket of another embodiment;

FIG. 24 is a schematic cross-sectional view of a second housing of the mobile terminal of FIG. 1;

fig. 25 is a schematic diagram illustrating a state in which a first housing and a second housing of the mobile terminal of fig. 1 are stacked;

fig. 26 is a schematic view illustrating a state in which a first housing and a second housing of the mobile terminal of fig. 1 are opened;

fig. 27 is an exploded view of a second housing of the mobile terminal of fig. 1;

fig. 28 is an assembled schematic view of a second housing of the mobile terminal of fig. 1;

FIG. 29 is a schematic view of a flexible panel of a connection module of the mobile terminal of FIG. 1;

FIG. 30 is a schematic view of a connector of a connection module of the mobile terminal of FIG. 1;

FIG. 31 is a partial schematic view of the connector of FIG. 30;

FIG. 32 is a schematic cross-sectional view of the attachment of FIG. 30 with a first sliding bracket;

FIG. 33 is another assembled cross-sectional view of the connector of FIG. 30 with a first sliding bracket;

FIG. 34 is a partial schematic view of another embodiment connector;

FIG. 35 is a schematic cross-sectional view of a first slider and a first slide in accordance with another embodiment;

FIG. 36 is a schematic cross-sectional view of the first slider bracket and the first slide of FIG. 35;

FIG. 37 is a partially exploded view of the connector of FIG. 30

FIG. 38 is an exploded view of the first damping assembly of the connector of FIG. 37;

FIG. 39 is a schematic partial cross-sectional view of the buckle chain and first damping assembly of FIG. 37;

FIG. 40 is an exploded view of another embodiment of a buckle connection and a first damping assembly;

FIG. 41 is an exploded view of the connector of FIG. 30;

FIG. 42 is an exploded view of the first link of the connector of FIG. 37 and the limiter of the first embodiment;

FIG. 43 is an exploded view of the flexible panel and the first shaft and limiter of the first embodiment;

FIG. 44 is an enlarged schematic view of portion C of FIG. 43;

FIG. 45 is a schematic perspective view of the flexible plate and the first shaft and the limiter of the first embodiment;

FIG. 46 is a schematic view of a partial assembly of the flexible panel of FIG. 1 with a limiter of a second embodiment;

FIG. 47 is a partial cross-sectional schematic view of the first housing, the second housing, the flexible panel, and the limiter of the second embodiment of the mobile terminal of FIG. 1;

FIG. 48 is a partial schematic view of the flexible panel of FIG. 1 with a limiter of the third embodiment;

FIG. 49 is a schematic partial cross-sectional view of the flexible display screen, flexible panel and limiter of the third embodiment of FIG. 1;

FIG. 50 is a schematic diagram of a package of the mobile terminal of FIG. 1;

FIG. 51 is a schematic cross-sectional view of the package of FIG. 50 and the flexible panel of FIG. 1;

FIG. 52 is a schematic view of another embodiment flexible panel, connector and limiter;

FIG. 53 is a schematic view of an expanded state of a flexible display screen of the mobile terminal of FIG. 1;

FIG. 54 is a schematic view of a bending state of a flexible display screen of the mobile terminal of FIG. 1;

fig. 55 is a schematic view of a folded state of a flexible display screen of the mobile terminal of fig. 1

FIG. 56 is a schematic view of the flexible display screen of the mobile terminal of FIG. 1 in an open state;

FIG. 57 is a schematic diagram of a mobile terminal of another embodiment;

FIG. 58 is an exploded view of a display assembly of the mobile terminal of FIG. 1;

fig. 59 is an exploded view of the electronic components of the mobile terminal of fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1, a mobile terminal 900 is provided, where the mobile terminal 900 includes a display device and an electronic component 300. The display device includes a housing assembly 100 and a display assembly 200. The housing assembly 100 includes a first housing 10, a second housing 20 that is reversible with respect to the first housing 10, and a connection module 30 connected between the first housing 10 and the second housing 20. I.e. the second housing 20 can be flipped back and forth relative to the first housing 10 with reference to the first housing 10. The second housing 20 may be folded or unfolded with respect to the first housing 10. I.e. the second housing 20 may be in an angled state, or in a flush state, or in a stacked state with the first housing 10. The connection module 30 can deform as the second housing 20 is folded or unfolded relative to the first housing 10, and limits the second housing 20 from being separated from the first housing 10. The connection module 30 includes a flexible plate 31 fixedly connecting the first housing 10 and the second housing 20, and a connection member 32 abutting against the flexible plate 31. The flexible plate 31 is bent or unfolded along with the first casing 10 and the second casing 20, and the connecting piece 32 is contracted or unfolded between the first casing 10 and the second casing 20, so as to support the flexible plate 31 when the first casing 10 and the second casing 20 are overlapped. The shrinkage of the connector 32 in the first case 10 and the second case 20 means that when the first case 10 is bent with respect to the second case 20, a space between the first case 10 and the second case 20 is reduced, and a portion of the connector 32 is shrunk toward the inside of the first case 10 or the inside of the second case 20, or both portions are shrunk toward the first case 10 and the second case 20, respectively. The deployment of the connector 32 into the first housing 10 and the second housing 20 means that the connector 32 is opened in the first housing 10 with respect to the second housing 20, and a portion of the connector 32 is deployed outwardly from the inside of the first housing 10, a portion of the connector is deployed outwardly from the inside of the second housing 20, or both portions of the connector are deployed outwardly from the inside of the first housing 10 and the inside of the second housing 20, respectively. The first display assembly 200 includes a flexible display screen 40 sequentially laid on the first housing 10, the connection module 30, and the second housing 20. The flexible display screen 40 is bent or unfolded along with the first casing 10 and the second casing 20. The electronic assembly 300 is fixed to the housing assembly 100 and electrically connected to the flexible display 40 to control the operation of the flexible display 40.

It is understood that the mobile terminal 900 may be a multi-purpose mobile phone that implements a small screen display, or a large screen display, or a bent screen display, and may exhibit various functions. For example: when the flexible display 40 is in a folded state, the first housing 10 and the second housing 20 may be folded together, and the mobile terminal 900 may be used as a mobile phone, so that the mobile terminal is convenient for a user to carry and occupies a small space. When the flexible display 40 is bent at a certain angle, the first housing 10 is opened relative to the second housing 20 and forms a certain angle with each other, and the mobile terminal 900 may be used as a notebook computer. And when the mobile terminal 900 is in the unfolded state of the flexible display screen 40, the first housing 10 is opened relative to the second housing 20 and is flush with each other, and the mobile terminal 900 can be used as a tablet computer to increase the display area, obtain more display contents, and improve the user experience. Of course, the mobile terminal 900 may be a multi-purpose tablet computer, a multi-purpose notebook computer, or other multi-function electronic devices with multiple mode switching.

The housing assembly 100 carries the display assembly 200 while protecting the electronic assembly 300. The first casing 10 and the second casing 20 support both ends of the flexible display screen 40, respectively. The connection module 30 may be folded or unfolded and supports the folded portion of the flexible display 40 between the two ends. Opposite side edges of the flexible plate 31 are respectively and fixedly connected with the first casing 10 and the second casing 20. The flexible plate 31 utilizes the flexible and bendable property of itself, so that the first housing 10 may be turned over relative to the second housing 20, and the first housing 10 may be folded, angled, or opened relative to the second housing 20. The opposite sides of the connecting piece 32 are slidably connected to the first housing 10 and the second housing 20, respectively, so that the connecting piece 32 can be contracted or expanded between the first housing 10 and the second housing 20 when the first housing 10 is turned over relative to the second housing 20. As an embodiment, the first housing 10 may be a hard housing, and the second housing 20 may be a hard housing. The first casing 10 and the second casing 20 may firmly support both ends of the flexible display screen 40.

In one embodiment, referring to fig. 2 to 4, the first housing 10 includes a first front shell 11 and a first rear shell 12 that is covered with respect to the first front shell 11. A first accommodating cavity 13 is formed between the first front case 11 and the first rear case 12, and the electronic component 300 is accommodated in the first accommodating cavity 13 (see fig. 1). The first front case 11 includes a first support surface 111 supporting one end of the flexible display screen 40 (see fig. 1). The first rear case 12 covers the first front case 11 on the opposite side of the first supporting surface 111. The first rear case 12 has a first rear surface 121 opposite to the first front case 11. The first housing 10 further comprises a first inner side 14 and a first outer side 15 remote from the connection module 30 (see fig. 1) with respect to the first inner side 14. The first inner portion 14 is fixedly connected to one side of the flexible plate 31 (see fig. 1) and slidably connected to one side of the connecting member 32 (see fig. 1). The first outer portion 15 is fixedly connected to an edge of one end of the flexible display screen 40, so that one end of the flexible display screen 40 is stacked on the first housing 10, and the first housing 10 supports one end of the flexible display screen 40.

When the first housing 10 is turned over relative to the second housing 20 (see fig. 1), a space between the first housing 10 and the second housing 20 is compressed to be reduced, and in order to prevent the first housing 10 from deforming the connection member 32 by compression, the first inner side portion 14 of the first housing 10 partially accommodates one side of the connection member 32 such that one side of the connection member 32 can partially slide into the first inner side portion 14. The first inner portion 14 is provided with a first receiving portion 16. The connecting piece 32 is slidably connected to the first accommodating portion 16 near one side of the first housing 10, so that when the connecting piece 32 is bent, a portion of the connecting piece 32 may slide into the first accommodating portion 16 of the first inner portion 14, so that the connecting piece 32 may be folded between the first housing 10 and the second housing 20, so as to avoid deformation caused by extrusion of the connecting piece 32.

In one embodiment, the connector 32 may further include a receiving portion near the first housing 10, where the receiving portion receives the first inner portion 14 of the first housing 10. The receiving portion may be formed of a receiving groove provided in the connector 32.

In the present embodiment, the first storage portion 16 is composed of two first slide grooves 141 provided at both ends of the first inner portion 14, and a plurality of second slide grooves 142 provided side by side between the two first slide grooves 141. The opening direction of the first sliding groove 141 is substantially parallel to the opening direction of the second sliding groove 142, the first sliding groove 141 is opened in the opposite direction to the first outer side portion 15 at the first inner side portion 14, and the second sliding groove 142 is opened in the opposite direction to the first outer side portion 15. The two first sliding grooves 141 guide both ends of the connection member 32 to prevent the connection member 32 from being offset with respect to the first housing 10 in a direction substantially parallel to the length direction of the first housing 10. The second sliding grooves 142 guide the connecting member 32 between the two ends thereof, so that the connecting member 32 can be smoothly retracted or extended between the first housing 10 and the second housing 20.

In one embodiment, as shown in fig. 4, the first housing 10 may further be provided with only one sliding groove 140 on the first inner side 14, and the sliding groove 140 is slidably connected to one side of the connecting member 32 (see fig. 1), so that the connecting member 32 may be partially retracted in the first housing 10.

In this embodiment, referring to fig. 5, the first inner portion 14 includes two first fixing portions 143 and one second fixing portion 144 fixed between the two first fixing portions 143. The first housing 10 further includes a first sliding bracket 17 fixed to the first fixing portion 143 and a second sliding bracket 18 fixed to the second fixing portion 144. In one embodiment, the first front housing 11 has an inner sidewall 112 proximate the connector 32 (see FIG. 1). Each of the first fixing portions 143 is a receiving groove formed at one end of the first inner sidewall 112 in the length direction. The inner sidewall of each first fixing portion 143 is provided with three first bosses 145 along the circumferential direction. The first sliding bracket 17 is engaged with the first fixing portion 143, and is screwed to the three first bosses 145. The first fixing portion 143 penetrates through the first front case 11, and the first rear case 12 supports the first sliding bracket 17, so as to improve structural stability of the first case 10. The second fixing portion 144 includes two second bosses 146 disposed on the first inner sidewall 112. The two second bosses 146 are disposed opposite to each other, and the two second bosses 146 are located adjacent to the two first fixing portions 145, respectively. The two second bosses 146 are respectively screwed to two ends of the second sliding bracket 18. The two second bosses 146 are further connected to the two first sliding brackets 17 by screws, so that the first housing 10 has a simple structure and improved stability. The two first sliding grooves 141 are respectively disposed on the two first sliding brackets 17, and the plurality of second sliding grooves 142 are disposed side by side on the second sliding bracket 18. The connecting piece 32 may be inserted into the first sliding bracket 17 and the second sliding bracket 18 at a side close to the first housing 10, and slide in the first sliding bracket 17 and the second sliding bracket 18. The first sliding support 17 and the second sliding support 18 are detachably connected to the first front case 11, so that maintenance of the first sliding support 17 and the second sliding support 18 is facilitated, and assembly of the connecting piece 32, the first sliding support 17 and the second sliding support 18 is facilitated. Of course, in one embodiment, as shown in fig. 6, the first fixing portion 143 and the second fixing portion 144 may be disposed on the first rear case 12, and the first sliding bracket 17 and the second sliding bracket 18 may be detachably connected to the first rear case 12.

Referring to fig. 7, in the present embodiment, the first sliding bracket 17 includes a first base 171, a first cover plate 172 that covers the first base 171, and two sliding guide strips 173 that are fixed between the first base 171 and the first cover plate 172. The first base 171 and the first cover plate 172 are locked by the screws 174, so that the first base 171 and the first cover plate 172 are detachably connected, the first sliding support 17 is convenient to maintain, the first sliding chute 141 and the sliding guide strip 173 are convenient to clean, and the connecting piece 32 (see fig. 1) and the first sliding support 17 can slide smoothly. Four corners of the first base 171 are locked to three of the first bosses 145 (see fig. 5) and one of the second bosses 146 (see fig. 5) with corresponding screws. The first base 171 includes a bottom plate 1711 and two fixing blocks 1712 disposed on the bottom plate 1711. The two fixing blocks 1712 are disposed opposite to each other and are located on both sides of the base plate 1711 in the sliding direction of the connecting member 32 (see fig. 1). After the first base 171 and the first cover 172 are covered, the fixed block 1712 abuts against the first cover 172. The two sliding guide strips 173 can be respectively locked to the two fixing blocks 1712 by screws. The length direction of the sliding guide strip 173 is substantially parallel to the sliding direction of the connecting member 32. The first sliding groove 141 (see fig. 2) is formed between the two sliding guide strips 173. In one embodiment, the slider 173 includes a first side 1731 fixedly coupled to the fixed block 1712 and a second side 1732 disposed opposite the first side 1731. The second side 1732 is provided with recesses 175. The length direction of the groove 175 extends along the length direction of the slide guide 173. The two guide and slide strips 173 have the same structure, and after the two guide and slide strips 173 are assembled with the first base 171, the openings of the grooves 175 of the two guide and slide strips 173 are opposite to each other. The two grooves 175 guide the portion of the connecting piece 32 sliding into the first sliding groove 141 and reduce the friction resistance of the connecting piece 32 with the first sliding bracket 17. The guide bar 173 is made of a thermoplastic crystalline polymer. The sliding guide strip 173 has wear-resisting, self-lubricating, heat-resisting, etc. properties, and increases the sliding guide of the connecting member 32, absorbs the frictional heat of the connecting member 32, and increases the service life of the first sliding bracket 17.

In one embodiment, as shown in fig. 8, the first sliding bracket 17 may be made of a thermoplastic crystalline polymer, and the first base 171 and the first cover 172 guide one side of the connection member 32 (see fig. 1) and reduce sliding friction between the first sliding bracket 17 and the connection member 32. The fixed block 1712 of the first base 171 has a guiding side 1713, and the guiding sides 1713 of the two fixed blocks 1712 are disposed opposite to each other. The first sliding groove 141 (see fig. 2) is formed between the two guide sides 1713. One side of the connecting piece 32 slides into the first sliding groove 141 and is attached to the guiding side face 1713, so that the two guiding side faces 1713 of the first base 171 reduce the sliding friction force of the connecting piece 32.

In one embodiment, as shown in fig. 9, two sliding guide pieces 1714 are fixed between the first base 171 and the first cover 172. The two guiding sliding pieces 1714 are respectively attached to the bottom plate 1711 of the first base 171 and the first cover plate 172. The bottom plate 1711 of the first base 171 is provided with screw posts 1715 extending toward the first cover plate 172, and the screws 174 pass through the first cover plate 172 and are screwed to the screw posts 1715. Each of the guiding and sliding pieces 1713 is provided with a through hole 1716 for the screw rod 1715 to pass through. The area between the two guiding blades 1714 forms the first sliding groove 141 (see fig. 1), so that one side of the connecting piece 32 is guided.

Referring to fig. 10, in the present embodiment, the second sliding bracket 18 includes a second base 181 and a second cover 182 fixed to the second base 181. The two ends of the second base 181 opposite to each other are locked with the two ends of the second cover 182 opposite to each other by screws, and the two ends of the second base 181 opposite to each other and the two ends of the second cover 182 opposite to each other are locked together with the two second bosses 146 (see fig. 5) of the first inner sidewall 112. The length direction of the second base 181 is substantially parallel to the length direction of the first inner sidewall 111. The length direction of the second cover 182 is substantially parallel to the length direction of the first inner sidewall 111. The second base 181 is adjacent to the first rear case 12 with respect to the second cover 182. The second sliding grooves 142 (see fig. 5) are disposed on the second base 181 and are arranged along the length direction of the second base 181. The second base 181 is made of thermoplastic crystalline polymer, and the second base 181 has wear resistance, self-lubrication, heat resistance, etc., which increases the guiding and sliding of the connecting member 32, absorbs the frictional heat with the connecting member 32, and increases the service life of the first sliding bracket 17. The second cover 182 is a hard plate. The second cover plate 182 provides a supporting force to the second base 181, prevents the second base 181 from being broken, and makes the second base 181 be secured to the second fixing portion 144.

In one embodiment, as shown in fig. 11, the second base 181 has a top surface 1811 facing the second cover 182, the second cover 182 has a bottom surface 1821 facing the second base 181, and an adhesive layer 183 is adhered between the top surface 1811 and the bottom surface 1821. The second base 181 and the second cover 182 are adhered to each other by the adhesive layer 183. Of course, in other embodiments, the second base 181 and the second cover 182 may be integrally formed.

Referring to fig. 12 and 15, since one side of the connecting member 32 slides relative to the first inner portion 14 of the first housing 10 as the first housing 10 is turned relative to the second housing 20. The greater the angle at which the first housing 10 is flipped relative to the second housing 20, the greater the distance the connector 32 slides relative to the first inner side 14. As shown in fig. 12 and 13, when the first casing 10 and the second casing 20 are turned from the open state to the folded state, one side of the connecting member 32 slides from the first inner side 14 toward the first outer side 15, that is, one side of the connecting member 32 is retracted toward the first casing 10, and after the first casing 10 is turned to the folded state with respect to the second casing 20, the first casing 10 and the second casing 20 cannot be turned continuously, and one side of the connecting member 32 cannot be slid continuously toward the first outer side 15. The first sliding groove 141 has a preset depth H, the preset depth H is greater than the sliding distance of the connecting piece 32, and a portion of the connecting piece 32 sliding into the first sliding groove 141 does not collide with the first front shell 11, i.e. does not damage the first front shell 11. As shown in fig. 14 and 15, when the first casing 10 and the second casing 20 are turned from the folded state to the open state, one side of the connecting member 32 slides from being close to the first outer side portion 15 to being far from the first outer side portion 15. When the first casing 10 and the second casing 20 are opened mutually, the end on one side of the connecting piece 32 is close to the opening of the first chute 141 and the opening of the second chute 142, the first casing 10 and the second casing 20 may be turned over continuously to be opened to an obtuse angle, and the end on one side of the connecting piece 32 may further slide towards the opening of the first chute 141 and the opening of the second chute 142. In order to prevent one side of the connector 32 from sliding out of the first sliding groove 141 and the second sliding groove 142, i.e. to prevent one side of the connector 32 from being separated from the first inner side 14 of the first housing 10, the first housing 10 is provided with a first limiting portion 19. The first limiting portion 19 is matched with one side of the bending support assembly 32 slidably connected to the first housing 10, so as to limit one side of the connecting piece 32 from being separated from the first housing 10. Meanwhile, in order to control the sliding distance of one side of the connecting piece 32 relative to the first housing 10, the first housing 10 is turned to a preset angle relative to the second housing 20. The first housing 10 is further provided with a first positioning portion 110. The first positioning portion 110 is matched with one side of the first housing 10 in sliding connection with the connecting piece 32, so that the connecting piece 32 is slidably connected with one side of the first housing 10 to be positioned relative to the first housing 10, that is, one side of the connecting piece 32 slides to a preset position of the first housing 10, the first housing 10 is turned to form a preset included angle relative to the second housing 20, and the first housing 10 and the second housing 20 can be maintained to be in a preset angle shape. It will be appreciated that the first housing 10 may be maintained at a plurality of predetermined angles with respect to the second housing 20, for example, the first housing 10 may be maintained at any angle of 0 ° to 240 ° with respect to the second housing 20, for example: 15 °, 26 °, 30 °, 38 °, 109 °, 120 °, 201 °, and the like.

Referring to fig. 16 and 17, in the present embodiment, the first limiting portion 19 is disposed on the first sliding bracket 17, and the first limiting portion 19 limits a portion of the connecting piece 32 sliding into the first sliding slot 141 to prevent the portion from being separated from the first sliding slot 141 (see fig. 2). In one embodiment, the first housing 10 (see fig. 1) is provided with two first limiting portions 19, and the two first limiting portions 19 limit two ends of one side of the connecting piece 32. The two first limiting portions 19 limit the connecting member 32 to prevent the connecting member 32 (see fig. 1) from sliding on one side of the first housing 10 and being entirely separated from the first housing 10. And the second sliding support 18 (see fig. 2) is avoided to be provided with a limiting part, so that the first shell 10 has a simple structure, and the connecting piece 32 is ensured to be effectively connected with the first sliding support 17. In one embodiment, the first limiting portion 19 includes a limiting post 191 protruding from the bottom plate 1711 toward the first cover plate 172 and a protrusion 192 protruding from the first cover plate 172 toward the bottom plate 1711. The end of the limit post 191 away from the bottom plate 1711 is provided with a clamping groove 193, and the end of the protrusion 192 away from the first cover plate 172 is clamped into the clamping groove 193. The protrusion 192 is engaged with the limiting post 191, so that the first limiting portion 19 achieves a stable structure. The limiting post 191 may penetrate through the portion of the connecting piece 32 that slides into the first sliding slot 141, that is, the limiting post 191 may buckle the portion of the connecting piece 32 that slides into the first sliding slot 141, so as to prevent the portion of the connecting piece 32 that slides into the first sliding slot 141 from being separated from the first sliding slot 141. The first cover 172 includes an inner side 1721 facing the first base 171. The protuberance 192 is located at a substantial center of the inner side 1721. The end of the limiting post 191 facing the first cover plate 172 is provided with a screw hole 194 penetrating to the first base 171. The screw 174 is screwed onto the protrusion 192 of the first base 171 through the screw hole 194, so that the end of the limiting post 191 abuts against the protrusion 192. The stability of the spacing post 191 and the protrusion 192 is improved, so as to prevent the spacing post 191 from being broken by the connector 32 being pulled off. Furthermore, the first sliding support 17 is more stable in structure.

In one embodiment, as shown in fig. 18, the first limiting portion 19 may also be disposed in the second chute 142. The first limiting portions 19 are protruding columns 183 disposed on the second cover 182, and each of the first limiting portions 19 correspondingly passes through the second sliding groove 142 of the second base 181. The first limiting portion 19 may be engaged with a portion of the connecting piece 32 (see fig. 1) sliding into the second sliding slot 142, so as to limit a portion of the connecting piece 32 sliding into the second sliding slot 142 from being separated from the second sliding slot 142.

In one embodiment, as shown in fig. 19, the limiting post 191 may be further fixed on a side of the first cover plate 172 facing the first base 171. One end of the limiting post 191 away from the first cover plate 172 is inserted into the fixing hole 1721 of the bottom plate 1711. The limiting post 191 is fixed between the first cover plate 172 and the bottom plate 1711.

In one embodiment, as shown in fig. 20, the first limiting portion 19 may further be a limiting hole 1723 disposed on the bottom plate 1711, and a length direction of the limiting hole 1723 is substantially parallel to a length direction of the first sliding slot 141 (see fig. 2). The connector 32 (see fig. 1) has a portion that slidably engages the stop hole 1723. The limiting aperture 1723 limits a portion of the connector 32 from exiting the limiting aperture 1723 to limit the connector 32 from exiting the first housing 10 (see fig. 1).

Referring to fig. 13 and 15, in the present embodiment, the first positioning portion 110 is disposed on the first sliding bracket 17, and the first positioning portion 110 positions a portion of the connecting piece 32 sliding into the first sliding slot 141, so that a portion of the connecting piece 32 sliding into the first sliding slot 141 can stay at a preset position of the first sliding slot 141. That is, the first housing 10 is provided with two first positioning portions 110, and the two first positioning portions 110 respectively position two end portions on one side of the connecting member 32, so as to position the whole of one side of the connecting member 32 slidably connected to the first housing 10, and keep the whole of one side of the connecting member 32 slidably connected to the first housing 10 to stay at a preset position. Furthermore, by providing the first positioning portion 110 on the first carriage 17, the positioning portions on the plurality of second carriages 18 are avoided, and the effect of simplifying the structure of the first housing 10 is achieved. And the first casing 10 is maintained in an arbitrary angle shape with the second casing 20 by being operatively connected to the first sliding bracket 17 through the connecting member 32, so that the connecting member 32 maintains an arbitrary bent state.

In this embodiment, referring to fig. 16 and 17, the fixed block 1712 is provided with a counter bore 1713 at a side opposite to the sliding guide strip 173. The bottom end of the counter bore 1713 is provided with a sliding hole 1714 penetrating through the fixed block 1712. The slide bore 1714 is provided with a first flange 1715 on the inside of the open end remote from the counterbore 1713. The base 171 also includes a baffle 1716 removably attached to the counterbore 1713. The baffle 1716 is screwed into the counterbore 1713 to cover the sliding hole 1714. The first positioning portion 110 includes a latch 1101 slidably coupled to the slide hole 1714, and an elastic member 1102 elastically compressed between the shutter 1716 and the latch 1101. The sliding direction of the bayonet 1101 is substantially perpendicular to the first sliding slot 141 (see fig. 2). The bayonet 1101 slides through the guide bar 173 in a direction away from or toward the shutter 1716. The bayonet 1101 is provided with a second flange 1103 on one end periphery side to which the elastic member 1102 is attached. The first flange 1715 limits the second flange 1103 from sliding out of the sliding hole 1714 to prevent the bayonet 1101 from disengaging the sliding hole 1714. In a state that the locking pin 1101 is connected with the elastic member, as shown in fig. 21, the elastic member 1102 is in a stretched state between the locking pin 1101 and the baffle 1716, the elastic member 1102 provides elastic force to the locking pin 1101 so that the locking pin 1101 slides away from the baffle 1716, and the locking pin 1101 can abut against a portion of the connecting member 32 sliding into the first sliding groove 141, and generates a pressing force on the portion of the connecting member 32 sliding into the first sliding groove 141, so that the portion stays in the first sliding groove 141 and cannot slide continuously; in another state, as shown in fig. 22, the elastic member 1102 is compressed between the bayonet 1101 and the shutter 1716. The latch 1101 slides in a direction approaching the shutter 1716, and the latch 1101 may be separated from a portion of the connecting member 32 slid into the first sliding groove 141, that is, the latch 1101 removes the pressing force on the portion so that the portion may slide with respect to the first sliding groove 141. With continued reference to fig. 16 and 17, in one embodiment, the resilient member 1102 is a rectangular spring. The spring 1102 is inserted into the slide hole 1714, and the spring 1102 provides a restoring force to the latch 1101 away from the flap 1716. When the elastic member 1102 is elastically compressed, the latch 1101 approaches the shutter 1716, and one side of the connecting member 32 can slide with respect to the first inner side 14 (see fig. 2); when the elastic member 1102 is in the elastically stretched state, the latch 1101 is away from the baffle 1716, and the latch 1101 is pressed against the portion of the connecting member 32 sliding into the first sliding groove 141 by the elastic force of the elastic member 17b, so that one side of the connecting member 32 is fixed relative to the first inner portion 14.

In one embodiment, as shown in fig. 23, the bottom plate 1711 is provided with a sliding hole 1724, and the latch 1101 is slidably connected to the sliding hole 1724. The baffle 1716 is fixed to the side of the bottom plate 1711 facing away from the first cover plate 172 and covers the sliding hole 1724. The elastic member 1102 is elastically compressed between the locking pin 1101 and the baffle 1716, and an elastic force is applied to the locking pin 1101 by the elastic member 1102, so that the locking pin 1101 can apply a pressing force to a portion of the connecting member 32 sliding into the first sliding groove 141, thereby positioning a portion of the connecting member 32 (see fig. 1) sliding into the first sliding groove 141.

In this embodiment, with continued reference to fig. 16 and 17, the end of the latch 1101 away from the baffle 1716 is hemispherical. When a flipping force is applied to the first housing 10 (see fig. 1) or the second housing 20 (see fig. 2), the first housing 10 is flipped with respect to the second housing 20, and the flipping force acts on the first housing 10 or the second housing 20, and the first housing 10 or the second housing 20 forms a pressing force on the connection member 32, so that a side of the connection member 32 close to the first housing 10 slides with respect to the first housing 10 by the pressing force. Since the hemispherical end of the locking pin 1101 abuts against the portion of the connecting member 32 sliding into the first sliding slot 141 under the elastic action of the elastic member 1102. When the connecting member 32 slides into the first sliding groove 141, a part of the pressing force is applied, the pressing force generates a component force approximately perpendicular to the baffle 1716 through the hemispherical end of the locking pin 1101 facing the locking pin 1101, and when the component force is greater than the elastic force of the elastic member 1102, the locking pin 1101 starts to slide towards the direction approaching the baffle 1716 under the action of the component force, so that the locking pin 1101 removes the pressing force on the connecting member 32, and one side of the connecting member 32 can slide to another preset position. Of course, in other embodiments, the end of the latch 1101 away from the baffle 1716 may be tapered or have an inclined surface at the end, and the inclined surface at the end of the latch 1101 may separate the pressing force substantially perpendicular to the length direction of the latch 1101 into a component substantially parallel to the length direction of the latch 1101, so as to enable the latch 1101 to slide.

Referring to fig. 24, 25 and 26, the second housing 20 includes a second front shell 21 and a second rear shell 22 that is covered with the second front shell 21. A second accommodating cavity 23 is formed between the second front case 21 and the second rear case 22, and the electronic component 300 is accommodated in the second accommodating cavity 23 (see fig. 1). The second front case 21 includes a second supporting surface 211 supporting an end of the flexible display screen 40 remote from the first case 10. The second rear case 22 covers the second front case 21 on the opposite side of the second supporting surface 211. The second rear case 22 has a second back surface 221 opposite to the second front case 21. As shown in fig. 25, when the first casing 10 and the second casing 20 are folded, the first back surface 121 is attached to the second back surface 221. The first supporting surface 111 and the second supporting surface 211 are respectively located at two sides of the mobile terminal 900, and together support the flexible display screen 40. As shown in fig. 26, when the first housing 10 and the second housing 20 are opened, the first supporting surface 111 is flush with the second supporting surface 211, and the first supporting surface 111 and the second supporting surface 211 support the flexible display 40 together, so that the flexible display 40 is located outside the first housing 10 and the second housing 20.

In one embodiment, the first back 121 of the first housing 10 is provided with a protrusion 122. The protruding portion 122 may be a structure protruding from the first back surface 121, such as an end of the imaging lens, an end of the exposure light, or an end of the key, etc., so that the distance from the first supporting surface 111 to the first back surface 121 may be effectively reduced, so that the first housing 10 is thinner, and user experience is further improved. In order to make the second back 221 completely fit to the first back 121, the second back 221 is provided with a groove 222 matching the protrusion 122. The depth of the recess 222 may be greater than or equal to the height of the boss 122. The protruding portion 122 is prevented from abutting against the second housing 20 when the first housing 10 and the second housing 20 are folded, the protruding portion 122 is prevented from damaging the second housing 20, the service life of the housing assembly 100 is improved, and the appearance performance of the housing assembly 100 is improved.

Referring to fig. 27 and 28, the second housing 20 further includes a second inner portion 24 connected to the connection module 30 and a second outer portion 25 remote from the connection module 30 with respect to the second inner portion 24. The second inner portion 24 is fixedly connected to a side of the flexible board 31 (see fig. 1) away from the first housing 10 (see fig. 1), and slidably connected to a side of the connecting member 32 (see fig. 1). The second outer portion 25 is fixedly connected to an edge of the flexible display screen 40 (see fig. 1) away from one end of the first housing 10, so that the end of the flexible display screen 40 away from the first housing 10 is stacked on the second housing 20, and the second housing 20, the first housing 10 and the connection module 30 (see fig. 1) together support the flexible display screen 40.

Since the space between the second housing 20 and the first housing 10 is reduced by being compressed when the second housing 20 is turned over relative to the first housing 10, the second inner side 24 of the second housing 20 partially accommodates one side of the connecting member 32 and allows one side of the connecting member 32 to partially slide into the second inner side 24 in order to avoid the second housing 20 from deforming the connecting member 32 by compression. The second inner side portion 24 is also provided with a second receiving portion 26 toward the second outer side portion 25. The connecting piece 32 is slidably connected to the second accommodating portion 26 near a side of the second housing 10. When the connecting piece 32 is bent, a part of the connecting piece 32 can slide into the second accommodating part 26 of the second inner side part 24, so that the connecting piece 32 can be folded between the first shell 10 and the second shell 20, and deformation caused by extrusion of the connecting piece 32 is avoided.

In the present embodiment, the second inner portion 24 of the second housing 20 is configured in the same manner as the first inner portion 14. The second front case 21 is fixed with the third sliding bracket 111 and the fourth sliding bracket 112, and the second inner side 24 of the second case 20 is slidably connected to the side of the connecting piece 32 away from the first case 10 through the third sliding bracket 111 and the fourth sliding bracket 112. The third sliding bracket 113 has the same structure as the first sliding bracket 17. The fourth sliding bracket 114 is identical in structure to the second sliding bracket 18.

Referring to fig. 29, in the present embodiment, the flexible board 31 includes a first fixing edge 311 disposed opposite to each other, a second fixing edge 312 disposed opposite to the first fixing edge 311, and two opposite connecting sides 313 connected between the first fixing edge 311 and the second fixing edge 312. The first fixing edge 311 is fixedly connected to the first inner side 14 (see fig. 2) of the first housing 10 (see fig. 2), and the second fixing edge 312 is fixedly connected to the second inner side 24 (see fig. 28) of the second housing 20 (see fig. 28). In one embodiment, the first securing edge 311 is welded to the second cover 182 (see fig. 7) and the first cover 172 (see fig. 7) of the first inner portion 14. The second fixed edge 312 is welded to the second inner side 24. When the first housing 10 is turned relative to the second housing 20, the first fixing edge 311 is closed or opened relative to the second fixing edge 312, so that the flexible board 31 is bent or unfolded, and the connecting piece 32 is driven to be bent or unfolded. The connecting sides 313 are aligned with the sides of the flexible display 40, increasing the support area for the flexible display 40 and increasing the appearance of the housing assembly 100 (see fig. 1). And the flexible plate 31 is an elastic steel sheet. The flexible plate 31 has a supporting force on the flexible display screen 40 and is convenient to bend so as to improve user experience. In order to reduce the elastic stress of the flexible plate 31 after bending, the elastic force of the flexible plate 31 after bending against the flexible display screen 40 (see fig. 1) is reduced. The flexible board 31 is provided with a plurality of strip-shaped through holes 314 arranged at intervals along a direction substantially parallel to the first fixing edge 311. The length direction of each bar-shaped through hole 314 is approximately parallel to the connecting side 313. Of course, in one embodiment, the first fixing edge 311 and the second fixing edge 312 of the flexible board 31 may be fastened to the first housing 10 and the second housing 20 by screws, respectively; the strip-shaped through holes 314 may also be circular through holes instead.

Referring to fig. 30 and 31, in the present embodiment, the connecting member 32 includes a first connecting portion 3211 and a second connecting portion 3212 (shown in a dashed box in fig. 30) opposite to each other. The first and second connection portions 3211 and 3212 are slidably connected to the first and second housings 10 (see fig. 1) and 20 (see fig. 1), respectively. In one embodiment, the first connecting portion 3211 is provided with a first sliding plate 3213 correspondingly slidably connected to the first sliding groove 141 (see fig. 2) and a plurality of second sliding plates 3214 respectively correspondingly slidably connected to the second sliding groove 142 (see fig. 2). The length direction of the first sliding plate 3213 is substantially parallel to the sliding guide 173. The first slider 3213 is substantially parallel to the first supporting surface 111. The first sliding plate 3213 has two sliding side walls 3221 disposed opposite to each other at both sides in the length direction. The sliding side wall 3221 slides relative to the groove 175 (see fig. 7) of the sliding guide strip 173 (see fig. 7), and the sliding side wall 3221 cooperates with the bottom surface of the groove 175 to facilitate the sliding of the first sliding plate 3213 between the two sliding guide strips 173 in the first sliding groove 141. Each of the second slide plates 3214 is substantially parallel to the first supporting surface 111. And the length direction of each second sliding plate 3214 is substantially parallel to the length direction of the first sliding plate 3213. The plurality of second sliding plates 3214 are arranged at intervals between the two first sliding plates 3213. The outer peripheral sidewall of the second sliding plate 322 is matched with the inner peripheral sidewall of the second sliding groove 142 (see fig. 2), so as to ensure that the second sliding plate 3214 is smoothly connected to the second sliding groove 142 in a sliding manner.

In one embodiment, the second connecting portion 3212 is provided with two third sliding plates 3215 and a plurality of fourth sliding plates 3216 located between the two third sliding plates 3215. The third sliding plate 3215 is correspondingly slidably connected to the first sliding groove 141 (see fig. 2) of the third sliding bracket 111. The fourth sliding plate 3216 is correspondingly slidably connected to the second sliding groove 142 (see fig. 2) of the fourth sliding bracket 114. The third slider 3215 has the same structure as the first slider 3213. The fourth slider 3216 has the same structure as the second slider 3214.

In order to prevent the first connecting portion 3211 and the second connecting portion 3212 from being separated from the first housing 10 and the second housing 20, respectively, and to position the first connecting portion 3211 and the second connecting portion 3212 with respect to the first housing 10 and the second housing 20, respectively, and to maintain the first housing 10 at a predetermined angle with respect to the second housing 20. The first connecting portion 3211 is provided with a second stopper 324 engaged with the first stopper 19 (see fig. 13 and 15) and a second positioning portion 325 engaged with the first positioning portion 110 (see fig. 13 and 15). The second limiting portion 324 is used to cooperate with the first limiting portion 19 to limit the connector 32 from being separated from the first housing 10 or/and the second housing 20. By the second positioning portion 325 cooperating with the first positioning portion 110, the connecting member 32 can be positioned in a bent or unfolded state, and the first housing 10 can be maintained in a predetermined angular state with respect to the second housing 20. The second connecting portion 3212 is provided with a second stopper 324 identical to the first connecting portion 3211 and a second positioning portion 325 identical to the first connecting portion 3211.

In this embodiment, referring to fig. 32, the second limiting portion 324 is disposed on the first sliding plate 3213. The second limiting portion 324 is a bar-shaped limiting hole. The opening edge of the second limiting portion 324 is in an oval track shape. The length direction of the second limiting portion 324 is substantially parallel to the length direction of the first sliding plate 3213. The spacing post 191 of the first spacing portion 19 (see fig. 13) passes through the second spacing portion 324, and the spacing post 191 slides in the second spacing portion 324. The width of the second limiting portion 324 is substantially the same as the diameter of the limiting post 191, and the second limiting portion 324 allows the limiting post 191 to slide only in the length direction of the first sliding plate 3213, and limits the movement of the limiting post 191 in a direction substantially perpendicular to the first sliding groove 141. As shown in fig. 22, when the limit post 191 slides to one end of the second limit portion 324, the first sliding plate 3213 stops sliding relative to the first sliding groove 141, so as to limit the first sliding plate 3213 to slide out of the first sliding groove 141, so that two side edges of the connecting piece 32 cannot be separated from the first housing 10 and the second housing 20, as shown in fig. 33, at this time, the first housing 10 may be opened and closed to a maximum included angle state relative to the second housing 20, and the first housing 10 may be turned over more than 180 ° relative to the second housing 20, so that the mobile terminal 900 may serve as a notebook function. Of course, in one embodiment, as shown in fig. 20 and 34, if the first limiting portion 19 is a limiting hole 1723 formed in the bottom plate 1711, the second limiting portion 324 may also be a protruding pillar fixed on the first sliding plate 3213, and the second limiting portion 324 is slidably connected to the limiting hole 1723.

In this embodiment, please continue to refer to fig. 31, the second positioning portion 325 is a positioning groove. The second positioning portions 325 are disposed on the sliding side wall 3221. The second positioning portions 325 are arranged at intervals along the longitudinal direction of the first slider 3213. As shown in fig. 32, when the first housing 10 (see fig. 1) and the second housing 20 (see fig. 2) are turned over each other by an external force, the first connection portion 3211 (see fig. 30) of the connection member 32 slides with respect to the first housing 10 and the second housing 20. The first sliding plate 3213 slides relative to the first sliding groove 141 under external force, and when the second positioning portion 325 slides to a position opposite to the locking pin 1101, one end of the locking pin 1101 is pressed against the second positioning portion 325 under elastic force, the locking pin 1101 applies a pressing force to the first sliding plate 3213, and the first sliding plate 3213 stops sliding relative to the first sliding groove 141 due to the blocking pin 1101 in the sliding direction. At this time, the force applied to the first housing 10 and the second housing 20 is removed, the first sliding plate 3213 stays at the predetermined position of the first sliding groove 141, the connecting element 32 is maintained in a bent state, and the first housing 10 and the second housing 20 are maintained in a predetermined angle state.

In one embodiment, as shown in fig. 35 and 36, the fixed block 1712 includes a guide side 1713 that is generally perpendicular to the base 1711. The first positioning portion 110 includes a positioning hole 1104 provided in the fixed block 1712, and the positioning hole 1104 is located at the guiding side 1713. The second positioning portion 325 includes a plurality of elastic pieces 3222 fixed to the sliding side wall 3221. The elastic pieces 3222 are arranged at intervals on the sliding side wall 3221. Each spring plate 3222 includes a fixed end 3223 for fixing the sliding side wall 3221 and an abutting end 3224 away from the sliding side wall 3221, and a resilient arm 3225 connected between the fixed end 3223 and the abutting end 3224. The resilient arms 3225 provide a resilient return force of the interference end 3224 away from the sliding side wall 3221. When the abutting end 3224 is received in the positioning hole 1104 under the elastic action of the elastic arm 3225, the positioning hole 1104 limits the abutting end 3224 to continue to slide along the first sliding groove 141, i.e. limits the first sliding plate 3213 to slide, so as to realize positioning, because the opening direction of the positioning hole 1104 is approximately perpendicular to the first sliding groove 141; when the abutting end 3224 compresses the elastic arm 3225, the abutting end 3224 is separated from the positioning hole 1104, and the elastic piece 3222 may slide along with the first sliding plate 3213.

With continued reference to fig. 30 and 37, the connector 32 includes a bending chain 326 (shown in phantom in fig. 30). The flex chain 326 includes a first link 327 and a second link 328 that rotate relative to each other, and a first shaft 329 that is rotatably coupled between the first link 327 and the second link 328. The two first connecting portions 3211 are respectively disposed at two sides of the bending chain 326. The first connection portions 3211 are substantially parallel to the first rotation shafts 329, and the two first connection portions 3211 are equally spaced from the first rotation shafts 329. When the connecting member 32 is not offset with respect to the flexible board 31, the first rotation shaft 329 is spaced from the first housing 10 equally from the second housing 20. The axis of rotation 320 is generally directly opposite the flexible plate 31 (see fig. 29) at a generally geometric median line. Bending or unfolding of the bending chain 326 is achieved by the first link 327 being flipped relative to the second link 328, and the bending chain 326 may support the flexible sheet 31. In one embodiment, the bending chain 326 includes a plurality of first links 327 and a plurality of second links 328, and the plurality of first links 327 and the plurality of second links 328 are staggered along the rotation axis 320, so that the plurality of first links 327 and the plurality of second links 328 have a bending plate shape.

In one embodiment, as shown in fig. 38, the bending chain 326 may be provided with only one first link 327 and one second link 328, a groove 3275 is provided through the first link 327, the second link 328 is provided with a protrusion 3285 embedded in the groove 3275, the first rotation shaft 329 passes through the groove 3275 and the protrusion 3285, and the first link 327 and the second link 328 are connected to the first rotation shaft 329 in a co-rotation manner and rotate with each other.

With continued reference to fig. 37, the first link 327 includes a first inner connecting portion 3271, a first outer connecting portion 3272 opposite to the first inner connecting portion 3271, and two first side walls 3273 opposite to each other between the first inner connecting portion 3271 and the first outer connecting portion 3272. One of the first side walls 3273 is provided with a rotation shaft hole toward the other first side wall 3273 at the first inner joint portion 3271, the first rotation shaft 329 is passed through the rotation shaft hole, and the first inner joint portion 3271 of the first link 327 is rotatably connected to the first rotation shaft 329. In order to avoid interference to other components when the first link 327 rotates relative to the first rotating shaft 329, the first inner connecting portion 3271 and the first outer connecting portion 3272 are both provided with a semi-circular curved surface, the substantially geometric central axis of the first rotating shaft 329 coincides with the substantially geometric central axis of the semi-circular curved surface, and the first inner connecting portion 3271 of the first link 327 reduces interference to other components. The first link 327 is a metal piece, and the surface of the link 327 may be anodized to increase the appearance of the bending chain 326. Of course, in other embodiments, the first link 327 may also be a curved plate to facilitate supporting the flexible plate 31 when the flexible plate 31 is curved.

In this embodiment, the second link 328 includes a second inner joint portion 3281, a second outer joint portion 3282 disposed opposite to the second inner joint portion 3281, and two second side walls 3283 disposed opposite to each other between the second inner joint portion 3281 and the second outer joint portion 3282. One of the second side walls 3283 is provided with a rotation shaft hole toward the other second side wall 3283 at the second inner joint portion 3281, the first rotation shaft 329 is passed through the rotation shaft hole, and the second inner joint portion 3281 of the second link 328 is rotatably connected to the first rotation shaft 329. The second side wall 3283 is substantially parallel to the first side wall 3273. And a gap exists between the second side wall 3283 and the first side wall 3273 to ensure smooth rotation of the first link 327 relative to the second link 328. In order to avoid interference to other components when the second link 328 rotates relative to the first rotation shaft 329, the second inner connecting portion 3281 is provided with a semi-circular curved surface, and the second outer connecting portion 3282 is provided with a semi-circular curved surface. The first shaft 329 has a substantially central axis coincident with a substantially geometric central axis of the semi-circular curved surface, and the second inner joint 3281 of the second link 328 has reduced interference with other components. The second link 328 may also be a metal piece. The outer surface of the second link 328 may be anodized the same as the first link 327 to maintain the same appearance of the second link 328 as the first link 327.

Because the first link 327 may be turned to an arbitrary angle with respect to the second link 328, after the first link 327 is bent with respect to the second link 328 under an external force, the flexible plate 31 (see fig. 29) is curved, and the flexible plate 31 may generate elastic restoring forces on the first link 327 and the second link 328 through the first housing 10 (see fig. 1) and the second housing 20 (see fig. 1), respectively, and if the external force is removed, the first link 327 and the second link 328 are easily expanded by the elastic restoring force of the flexible plate 31. In order to maintain the first link 327 and the second link 328 relatively fixed after being turned at any angle, and maintain the first housing 10 relatively fixed with respect to the second housing 20 after being turned at any angle, the connecting member 32 (see fig. 30) further includes a damping mechanism 33. The damping mechanism 33 is configured to generate a bending damping force on the bending chain 326, so that the bending or unfolding shape can be maintained unchanged after the external force is removed from the bending chain 326.

Referring to fig. 37, 38 and 39, in the present embodiment, the damping mechanism 33 includes a first damping assembly 331, and the first damping assembly 331 includes a first damping ring 3311 and a second damping ring 3312. The first damping ring 3311 is sleeved on the first rotating shaft 329 and rotates along with the first chain link 327. The second damping ring 3312 is sleeved on the first rotating shaft 329 and rotates along with the second chain link 328, and the first damping ring 3311 and the second damping ring 3312 are mutually abutted to generate a friction damping force. In one embodiment, the damping mechanism 33 includes a plurality of sets of the first damping members 331, each set of the first damping members 331 being located between the first link 327 and the second link 328. The first damping ring 3311 is made of wear-resistant sheet. The second damping ring 3312 is made of wear-resistant sheet. The first damping ring 3311 has a roughened surface and the second damping ring 3312 also has a roughened surface. When the first damping ring 3311 and the second damping ring 3312 are abutted against each other to rotate, the two first damping rings 3311 and the second damping ring 3312 generate frictional resistance therebetween. And since the first and second dampening rings 3311, 3312 are fixed to the first and second side walls 3273, 3283 of the first and second links 327, 328, respectively, the frictional resistance is transmitted to the first and second links 327, 328. The first link 327 and the second link 328 have a friction resistance to prevent mutual rotation, and when the external force is smaller than the friction resistance, the first link 327 is fixed relative to the second link 328, so that the flexible plate 31 maintains the shape unchanged, and the first housing 10 is fixed relative to the second housing 20. When the external force is greater than the friction resistance, the first link 327 rotates relative to the second link 328, the flexible plate 31 is bent and deformed, and the first housing 10 is turned relative to the second housing 20. Of course, in one embodiment, as shown in fig. 40, the damping mechanism 33 may further include a plurality of first spines 336 disposed on the first side wall 3273 and around the first rotating shaft 329, and a plurality of second spines 337 disposed on the second side wall 3283 and around the first rotating shaft 329, where the first spines 336 are in contact with the second spines 337, and generate friction resistance to the first link 327 and the second link 328.

In this embodiment, with continued reference to fig. 37, 38 and 39, the first damping assembly 331 further includes a first elastic ring 3313, a second elastic ring 3314, a first snap ring 3315 and a second snap ring 3316. The first elastic ring 3313 is sleeved on the first rotating shaft 329 and is fixed between the first side wall 3273 and the damping ring 3311. The second elastic ring 3314 is sleeved on the first rotating shaft 329 and is fixed between the second side wall 3283 and the first damping ring 3311. The first elastic ring 3313 provides an elastic force to the first damping ring 3311, and the second elastic ring 3314 provides an elastic force to the second damping ring 3312 such that the first damping ring 3311 and the second damping ring 3312 collide with each other. The first snap ring 3315 is fixed to the circumferential side of the first rotation shaft 329, and the first elastic ring 3313 is elastically compressed between the first damper ring 3311 and the first snap ring 3315. The first snap ring 3315 limits the first elastic ring 3313 to prevent the first elastic ring 3313 from being shifted on the first rotation shaft 329. The second snap ring 3316 is fixed to the circumferential side of the first rotation shaft 329, and the second elastic ring 3314 is elastically compressed between the second damper ring 3312 and the second snap ring 3316. The second snap ring 3316 limits the second elastic ring 3314 to prevent the second elastic ring 3314 from being shifted on the first rotation shaft 329. In one embodiment, the first shaft 329 is formed of a plurality of stub shafts, each of which passes through the first link 327 and the second link 328, respectively. The first and second snap rings 3315, 3316 are respectively fastened to two ends of the stub shaft 3291 to facilitate assembly of the first damper assembly 331 to the first and second links 327, 328. The first side wall 3273 is provided with a first locking groove 3274, and the second side wall 3283 is provided with a second locking groove 3284. The first clamping groove 3274 is a special-shaped groove, the second clamping groove 3284 is a special-shaped groove, and the first damping ring 3311 and the second damping ring 3312 are respectively clamped in the first clamping groove 3274 and the second clamping groove 3284, so as to prevent the first damping ring 3311 from rotating relative to the first clamping groove 3274 and prevent the second damping ring 3312 from rotating relative to the second clamping groove 3284. The first elastic ring 3313 and the second elastic ring 3314 are respectively fixed to the first clamping groove 3274 and the second clamping groove 3284, so that a gap between the first chain link 327 and the second chain link 328 is reduced, and a supporting performance of the bending chain 326 is improved. The first and second snap rings 3315, 3316 are located at the bottoms of the first and second clamping grooves 3274, 3284, respectively, but are spaced apart from the bottom surfaces of the first and second clamping grooves 3274, 3284, respectively, to protect the first and second links 327, 328 from damage to the first link 327 by the first elastic ring 3313 and damage to the second link 328 by the second elastic ring 3314. Of course, in other embodiments, the first elastic ring 3313 may be replaced by another elastic member such as a spring, and the second elastic ring 3314 may be replaced by another elastic member such as a spring.

Referring to fig. 41, in the present embodiment, the bending chain 326 further includes a third link 333, a fourth link 334, a second rotating shaft 335 and a third rotating shaft 336. The third link 333 is a metal member, and the third link 333 may have the same anodized outer surface as the first link 327. The fourth link 334 is a metal piece, and the fourth link 334 may have the same anodized outer surface as the first link 327. The third link 333 is rotatably connected to the first external connection portion 3271 of the first link 327 through the second rotation shaft 335. The fourth link 334 is rotatably coupled to the second outer portion 3283 of the second link 328 by a third shaft 336.

In one embodiment, the direction of rotation of the third link 333 is substantially parallel to the direction of rotation of the first link 327. I.e. the second axis of rotation 335 is substantially parallel to the first axis of rotation 329. The third link 333 includes a third inner joint part 3331, a third outer joint part 3332 opposite to the third inner joint part 3331, and two third side walls 3333 opposite to each other between the third inner joint part 3331 and the third outer joint part 3332. One of the third side walls 3333 is provided with a rotation shaft hole toward the other third side wall 3333 at the third inner joint portion 3331, the second rotation shaft 335 passes through the rotation shaft hole, and the third inner joint portion 3331 of the third link 333 is rotatably connected to the second rotation shaft 335. The second shaft 335 also passes through the shaft hole of the first link 327 at the first external connection portion 3272, and the third link 333 is turned relative to the first link 327. The third links 333 and the first links 327 are staggered on the second rotating shaft 335. One third side wall 3333 of the third links 333 extends toward the third side wall 3333 of the adjacent other third links 333 to form a boss 3334, and the height of the boss 3334 is approximately equal to the distance between the two first side walls 3273 of the first links 327. The boss 3334 compensates for the gap between the third side walls 3333 of the adjacent two third links 333, reduces the distance between the adjacent two third links 333, and further increases the attaching area of the bending chain 326 to the flexible display screen 40, so that the bending chain 326 supports the flexible display screen 40 more stably. The third circumscribed portions 3332 of the plurality of third links 333 constitute first connection portions 3211 of the connection member 32 (see fig. 30). The third link 333 at the end of the second shaft 335 fixes the first slider 3213 to the third external connection 3332. The first sliding plate 3213 is integrally provided with the third link 333 at an end of the second rotating shaft 335. The third external connection portion 3332 is provided with a flat side, and the first sliding plate 3213 is substantially perpendicular to the flat side of the third external connection portion 3332. The other third links 333 on the second rotating shaft 335 fix the second sliding plate 3214 at the third external connection portion 3332. The third links 333 are slidably connected to the first housing 10, so that the connecting member 32 is slidably connected to the first housing 10 near the first connecting portion 3211 of the first housing 10 (see fig. 1). In one embodiment, the third side wall 3333 is substantially parallel to the first side wall 3273, and a gap exists between the third side wall 3333 and the first side wall 3273 to ensure smooth rotation of the first link 327 relative to the third link 333. In order to avoid interference to other components when the third link 333 rotates relative to the second rotating shaft 335, the third inner connecting portion 3331 and the third outer connecting portion 3332 are both provided with a semi-circular curved surface, the substantially geometric central axis of the second rotating shaft 335 coincides with the substantially geometric central axis of the semi-circular curved surface, and the second inner connecting portion 3281 of the second link 328 reduces interference to other components. The side of the boss 3334 facing the first link 327 is also provided with a semi-circular curved surface. In order to maintain the third link 333 and the first link 327 relatively fixed after being turned at any angle, and maintain the first housing 10 relatively fixed with respect to the second housing 20 after being turned at any angle, the damping mechanism 33 further includes a plurality of sets of first side damping assemblies 332. Each of the second damper assemblies 332 is located between the first link 327 and the third link 333, and is configured to generate a reverse damper force to the third link 333 and the first link 327, so that a relatively fixed state can be maintained after an external force is removed from the third link 333 and the first link 327.

As shown in fig. 39 and 41, the second damping member 332 is provided in the same manner as the first damping member 331. The first elastic ring 3313 of the second damper assembly 332 is sleeved on the second rotating shaft 325, and is fixed between the first link 327 and the first damper ring 3311 of the second damper assembly 332. The second elastic ring 3314 of the second damping assembly 332 is sleeved on the second rotating shaft 325, and is fixed between the third link 333 and the second damping ring 3312 of the second damping assembly 332.

The fourth link 334 is configured identically to the third link 333. When the fourth link 334 is assembled with the second link 328, the boss 3334 of the fourth link 334 faces opposite to the boss 3334 of the third link 333. The fourth links 334 and the second links 328 are staggered on the third shaft 336. The fourth links 334 form the second connecting portion 3212 (see fig. 29) on a side opposite to the third rotating shaft 336, so as to realize sliding connection of the second connecting portion 3212 of the connecting member 32 to the second housing 20. The fourth link 334 and the second link 328 maintain a relatively fixed state after being turned over at any angle, and the damping mechanism 33 further includes a third damping assembly 340. The third damping assembly 340 is configured to generate a rollover damping force on the fourth link 334 and the second link 328 such that a relatively fixed state may be maintained upon withdrawal of an external force on the fourth link 334 and the second link 328. The fourth damping assembly 340 is identical to the first damping assembly 331. The first elastic ring 3313 of the third damper assembly 340 is sleeved on the third rotating shaft 326 and is fixed between the second link 328 and the first damper ring 3311 of the third damper assembly 340. The second elastic ring 3314 of the third damper assembly 340 is sleeved on the third rotating shaft 326 and is fixed between the fourth link 334 and the second damper ring 3312 of the third damper assembly 340.

Referring to fig. 30 and 42, in one embodiment, the first housing 10 (see fig. 1) may be turned relative to the second housing 20 (see fig. 1), and the first housing 10 and the second housing 20 are slidably connected to the first housing 10 and the second housing 20 respectively due to the two first connecting portions 3211 opposite to each other of the connecting members 32, so that it is necessary to avoid that the two first connecting portions 3211 slide in one direction relative to the first housing 10 or the second housing 20 at the same time. That is, in order to avoid that the connecting member 32 is offset with respect to the flexible board 31 and thus the flexible board 31 cannot be supported, the connected module 30 further includes a limiting member 34. The limiting member includes 34 a first end 341 and a second end 342 disposed opposite to the first end 341, the first end 341 and the second end 342 are respectively connected to the flexible board member 31 and the connecting member 32, and the limiting member 34 limits the connecting member 32 from being offset toward the first housing 10 or the second housing 20 relative to the flexible board member 31.

In one embodiment, the first end 341 is fixedly connected to the flexible board 31, and the second end 342 limits the connecting member 32. The first end 341 is equidistant from the first housing 10 and the second housing 20, and the second end 342 limits the connecting member 32 to limit the connecting member 32 from being biased toward the first housing 10 or the second housing 20.

Referring to fig. 43, 44 and 45, a first embodiment is provided, the first end 341 is provided with a protrusion 343 facing away from the second end 342, and the second end 342 is provided with a rotation shaft hole 344 along a direction substantially perpendicular to the length direction of the limiting member 34. The flexible plate 31 has a welding hole 315 formed at a position substantially parallel to a geometric median line of the first fixing edge 311 and opposite to the first link 327, the boss 343 is welded in the welding hole 315, and the first end 341 is spaced from the first housing 10 (see fig. 1) and the second housing 20 (see fig. 1) equally. As shown in fig. 42, the first link 327 has a receiving groove 3274 that opens toward the flexible board 31 at the first inner joint portion 3271. The first rotating shaft 329 passes through the receiving groove 3274. The second end 342 of the limiting member 34 is received in the receiving groove 3274, the first rotating shaft 329 passes through the rotating shaft hole 344 of the second end 342, and the limiting member 34 is rotatable in the receiving groove 3274 relative to the first chain link 327. The second end 342 of the limiter 34 is fixed relative to the first shaft 329. That is, the connecting piece 32 is generally parallel to the geometric median line of the first connecting portion 3211 and fixed relative to the second end 342 of the limiting piece 34, so that the connecting piece 32 always faces the geometric median line of the first fixing edge 311, which is generally parallel to the geometric median line of the first connecting portion 3211, to the flexible board 31, so as to limit the offset of the connecting piece 32 relative to the flexible board 31, and ensure that the connecting module 30 can effectively support the bending portion of the flexible display screen 40. The flexible plate 31 is provided with a plurality of welding holes 315 corresponding to the first links 327, and the flexible plate 31 is provided with a plurality of welding holes 315 corresponding to the second links 327. The second link 327 is also provided with the receiving groove 327d. The connection module 30 includes a plurality of limiting members 34, and the plurality of limiting members 34 are respectively and correspondingly installed in the plurality of receiving grooves 3274, so that the structure of the flexible plate 31 and the connection member 32 is more stable.

Referring to fig. 46, a second embodiment is provided, the limiting member 34 is provided with a limiting groove 345 extending toward the first end 341 at the second end 342, and the limiting groove 345 is slidably connected to the connecting member 32 to limit the connecting member 32 to approach or separate from the flexible plate 31 within a predetermined distance.

The connection module 30 includes two limiting members 34, and the two limiting members 34 are respectively fixed at two ends of the first rotating shaft 329 in the length direction. The limiting piece 34 is a packaging piece, and the limiting piece 34 can also cover and package two ends of the connecting piece 32. In one embodiment, the stop 34 is a flexible flexure. The first end 341 is fixedly connected to the connecting side 313 of the flexible board 31 by means of bonding or snap connection, and bends or expands together with the connecting side 313. The first end 341 extends toward the second end 342 to form a plurality of protrusions 346, the protrusions 346 are arranged along the length direction of the connecting side 313, and the protrusions 346 cover two ends of the connecting member 32 to improve the appearance and structural performance of the connecting module 30. Each of the protrusions 346 has two inclined side walls 347 inclined at an angle. The inclined side walls 347 of adjacent two of the protrusions 346 are disposed at an angle. When the restriction 34 is unfolded with the flexible plate member 31, a gap exists between the inclined side walls 347 of the adjacent two protrusions 346. When the restricting member 34 is bent with the flexible plate member 31, the inclined side walls 347 of the adjacent two of the protrusions 346 are brought close to each other, and finally the protrusions 346 are contracted together to cover the end portions of the connecting member 32 together. The limiting groove 345 is located on one of the protrusions 346, and the protrusion 346 is opposite to the geometric median line of the flexible plate 31, which is approximately parallel to the first fixing edge 311. The limit groove 345 is opposite to the geometric median line of the flexible plate 31, which is approximately parallel to the first fixing edge 311, and the length direction of the limit groove 345 is approximately perpendicular to the geometric median line of the flexible plate 31, which is approximately parallel to the first fixing edge 311. Two ends of the first rotating shaft 329 are respectively inserted into the two limiting grooves 345 of the limiting piece 34. The opening edge of the limit groove 345 is in an oval runway shape. The two ends of the first rotating shaft 329 are slidably connected to the limiting groove 345 along the length direction of the limiting groove 345. The limiting groove 345 limits the first rotating shaft 329 from being offset relative to the center of the flexible board 31, so as to limit the connecting piece 32 from being offset relative to the flexible board 31. Since the distance from the first rotation shaft 329 to the flexible plate 31 increases when the first housing 10 is pushed against the second housing 20 by more than 180 °, the end of the first rotation shaft 329 slides toward the other end at one end of the limit groove 345. The limiting groove 345 guides the first rotating shaft 329, so as to prevent the first rotating shaft 329 from being offset relative to the approximate geometric center of the flexible board 31 when being far away from the flexible board 31, that is, the effect that the first shell 10 and the second shell 20 are turned over by more than 180 degrees, and the connecting piece 32 still cannot be offset relative to the flexible board 31 is achieved. When the first shaft 329 slides from one end to the other end of the limiting groove 345, the first shaft 329 cannot slide continuously, and the flexible plate 31 cannot move away from the first shaft 329 continuously. The first casing 10 cannot continuously increase the overturning angle relative to the second casing 20, that is, the first casing 10 and the second casing 20 are guaranteed to mutually overturn within the safety included angle range, the flexible display screen 40 is guaranteed to bend within the safety included angle range, and the flexible display screen 40 (see fig. 1) is prevented from flexing. Because the limiting piece 34 is made of flexible silica gel material, so as to facilitate bending of the limiting piece 34, the limiting piece 34 is easily damaged by friction of the first rotating shaft 329, so that in order to increase the service life of the limiting piece 34, an oval runway-shaped steel ring 348 is sleeved in the limiting groove 345 of the limiting piece 34, and safety of the limiting piece 34 is improved.

Referring to fig. 47, a third embodiment is provided, wherein the limiting member 34 is a steel plate integrally formed with the flexible plate 31. The first end 341 of the restriction member 34 is fixed at a substantially geometric center of the connecting side 313, and the first end 341 is equally spaced from the first housing 10 and from the second housing 20. The second end 342 is bent at 90 ° with respect to the flexible board 31. By providing a sheet metal part in advance, punching and bending both ends of the sheet metal part by a punching process, the flexible plate 31 and the restriction member 34 are obtained. The second end 342 of the limiting member 34 is punched with a sliding hole 348, and two ends of the first rotating shaft 329 respectively pass through the sliding holes 348 of the two limiting members 34. The opening edge of the sliding hole 348 has an oval track shape, and the length direction of the sliding hole 348 is substantially perpendicular to the substantially geometric median line of the first fixing edge 311 of the flexible board 31. One end of the first rotating shaft 329 is provided with a sliding rod 3291, the sliding rod 3291 slides in the sliding hole 348, so that the first rotating shaft 329 and the second end 342 of the limiting piece 34 are positioned, the first rotating shaft 329 is limited to deviate relative to the flexible plate 31, and the connecting piece 32 is approximately opposite to the flexible plate 31, so that the structural stability of the supporting module 30 is ensured. The first rotating shaft 329 slides in a direction substantially opposite to the flexible plate 31 so that the flexible plate 31 can be bent over 180 degrees, that is, the first housing 10 can be turned over 180 ° with respect to the second housing 20.

Referring to fig. 48, 49 and 50, in a third embodiment, the housing assembly 100 (see fig. 1) further includes a flexible package 50, and the flexible package 50 is configured to be fixed to a side of the flexible display 40. The flexible package 50 has a package face 51, and the package face 51 covers the side of the flexible display 40. The package face 51 is an outer side face of the package 50. The package 50 also has an abutment surface 52 disposed opposite the package surface 51. The attaching surface 52 is attached to the limiting member 34, and a sliding slot 512 is disposed corresponding to the fixing hole 348. The slide rod 3291 of the first rotating shaft 329 passes through the fixing hole 348 and slides in the sliding groove 512. The package surface 51 has a first edge 53 substantially parallel to the side of the flexible display 40, a second edge 54 opposite to the first edge 53, and a plurality of through holes 55 spaced in a direction parallel to the first edge 53. The first edge 53 and the second edge 54 are bent or unfolded along with the side edge of the flexible display screen 40, and the inner space of the plurality of through holes 55 is compressed by the bending of the first edge 53 and the second edge 54, so that the flexible package 50 is contracted along with the bending of the side edge of the flexible display screen 40.

In one embodiment, as shown in fig. 52, the second end 342 is fixedly connected to the connecting member 32, and the first end limits the flexible board 31 to prevent the connecting member 32 from being offset toward the first housing 10 or the second housing 20 relative to the flexible board 31. The connecting side 313 of the flexible panel 31 is provided with a sliding column 349 at substantially the geometric centre. The second end 342 is fixedly connected to an end of the first shaft 329 of the connector 32. The first end 341 is provided with a sliding aperture 348, the sliding aperture 348 being slidably coupled to the sliding column 349. The length direction of the sliding hole 348 is substantially perpendicular to the substantially geometric median line of the flexible board 31 substantially parallel to the first fixing edge 311.

The housing assembly 100 (see fig. 1) includes two flexible packages 50, and the two flexible packages 50 are respectively fixed to two connection sides 313 of the flexible board 31. The flexible package 50 covers the connection module portion of the flexible display 40. The flexible package 50 also covers the connection module 30, thereby improving the appearance of the housing assembly 100. In one embodiment, the flexible package 50 is made of silicone. The flexible package 50 and the flexible board 31 are integrally formed in a mold, and the first edge 53 of the flexible package 50 is fixedly connected to the connection side 313. The first edge 53 of the flexible package 50 bends or expands with the connecting side 313 of the flexible panel 31. The opening edge of each through hole 55 is oval racetrack, and the length direction of the through hole 55 is approximately parallel to the connecting side 313. When the flexible package 50 is bent, there is enough compression space within the through hole 55. Of course, in other embodiments, the opening edge of the through hole 55 may be circular, or rectangular. The first edge 53 may also be secured to the flexible panel 31 by screws.

Referring to fig. 53, in the present embodiment, the flexible display 40 includes a first display portion 41 attached to the first supporting surface 111 (see fig. 3), a second display portion 42 attached to the second supporting surface 121, and a bending display portion 43 connected to the first display portion 41 and the second display portion 42. The first display part 41 and the second display part 42 are folded or unfolded with the first housing 10 and the second housing 20, respectively. The first display portion 41 includes a first display surface facing the user and a first back surface 121 (see fig. 25) facing away from the user, and the second display portion 42 includes a second display surface facing the user and a second back surface 221 (see fig. 25) facing away from the user. The bending display part 43 is bent or unfolded as the first display part 41 is folded or unfolded with respect to the second display part 42. As shown in fig. 52, the flexible display 40 may be unfolded along with the first casing 10 and the second casing 20. As shown in fig. 54, the flexible display 40 may bend along with the first housing 10 and the second housing 20 forming an angle, that is, the first display surface of the first display portion 10 is turned over by more than 180 ° relative to the second display surface of the second display portion 20, in fig. 53, the first display surface of the first display portion 41 is turned over by 270 ° relative to the second display surface of the second display portion 20, and the first back surface 121 of the first display portion 41 is close to the second back surface 221 of the second display portion 42. As shown in fig. 55, the flexible display 40 (see fig. 51) may be folded along with the first casing 10 and the second casing 20 being overlapped, and the first back 121 of the first display 41 and the second back 221 of the second display 42 are close to each other. As shown in fig. 55, the flexible display 40 (see fig. 51) may also be opened as the first housing 10 and the second housing 20 are turned over.

In one embodiment, the first housing 10 is further slidable relative to the second housing 20, and the connection module

In one embodiment, referring to fig. 57, the number of the second display portions 42 is two, the two second display portions 42 are respectively located at two sides of the first display portion 41, the number of the second housings 20 is two, the two second housings 20 are respectively located at two sides of the first housing 10, and the two second housings 20 respectively support the two second display portions 42. The bending display portion 43 is connected between each of the second display portions 42 and the first display portion 41. The connection module 30 is connected between each of the second housings 20 and the first housing 10. Each connection module 30 supports the bending display portion 43.

Referring to fig. 58, the display assembly 200 (see fig. 1) further includes a flexible light-transmissive cover plate 60 that covers the flexible display screen 40. The flexible light-transmitting cover plate 41 is attached to the flexible display screen 40. The periphery of the transparent cover 60 is fixedly connected to the first housing 10, the second housing 20 and the flexible plate 31. The light-transmitting cover 41 protects the flexible display 40 and improves the appearance of the mobile terminal 900.

Referring to fig. 59, in the present embodiment, the electronic assembly 300 (see fig. 1) includes a first electronic module 71, a second electronic module 72, and a flexible circuit board 73 electrically connecting the first electronic module 71 and the second electronic module 72. The first electronic module 71 and the second electronic module 72 are respectively fixed in the first accommodating cavity 13 and the second accommodating cavity 23. The first electronic module 71 may be composed of a printed circuit board and a functional module provided to the printed circuit board. The first electronic module 71 may be a motherboard and a central processing unit, a memory, an antenna, a camera, a headset, etc. provided with the motherboard. The second electronic module 72 may also be formed by a printed circuit board and a functional module disposed on the printed circuit board, the second electronic module 72 is different from the first electronic module 71, and the second electronic module 72 may be a battery, a connector, a fingerprint module, or the like.

The foregoing is a preferred embodiment of the invention, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the invention and are intended to be comprehended within the scope of the invention.

Claims

1. The shell assembly is characterized by comprising a first shell, a second shell and a connecting module connected between the first shell and the second shell, wherein the connecting module comprises a flexible plate, a connecting piece and a limiting piece, the flexible plate is fixedly connected with the first shell and the second shell, the second shell and the first shell are mutually overturned through bending of the flexible plate, the connecting piece is positioned on one side of the flexible plate and connected between the first shell and the second shell and can stretch relative to the first shell or/and the second shell, and the limiting piece is connected with the flexible plate and the connecting piece so as to limit the connecting piece to deflect towards the first shell or the second shell;

the limiting piece comprises a first end and a second end which is arranged opposite to the first end, the first end is fixedly connected with the flexible plate, and the second end limits the connecting piece; the connecting piece comprises a first connecting part, a second connecting part and a first rotating shaft, wherein the second connecting part is arranged opposite to the first connecting part, the first rotating shaft is rotatably connected with the first connecting part and the second connecting part, the first connecting part and the second connecting part respectively stretch and retract relative to the first shell and the second shell, and the second end limits the first rotating shaft;

The first shell comprises a first inner side part fixedly connected with the first shell, the first inner side part is slidably connected with the first connecting part, the second shell comprises a second inner side part fixedly connected with the flexible plate, and the second inner side part is slidably connected with the second connecting part.

2. The housing assembly of claim 1, wherein the flexible plate is provided with a weld hole, the first end is provided with a boss welded to the weld hole, the second end is provided with a spindle hole, and the peripheral side wall of the first spindle is mated with the inner side wall of the spindle hole.

3. The housing assembly of claim 1, wherein the first end is integrally formed with the flexible panel.

4. The housing assembly of claim 1, wherein the second end is provided with a chute extending from the second end to the first end, the first shaft being slidably coupled to the chute.

5. The housing assembly of claim 4, wherein the inner sidewall of the chute is circumferentially secured with a steel rim.

6. The housing assembly of claim 1, further comprising a first positioning mechanism including a first positioning portion disposed at the first inner portion and a second positioning portion disposed at the first connecting portion, the second positioning portion cooperating with the first positioning portion to position the first connecting portion and the first inner portion.

7. The housing assembly of claim 6, wherein the first positioning portion includes a detent slidably coupled to the first inner portion, and the second positioning portion includes a recess disposed in the first connecting portion, the detent cooperating with the recess to secure the first connecting portion relative to the first inner portion.

8. The housing assembly of claim 6, further comprising a first stop mechanism including a first stop portion disposed on the first inner portion and a second stop portion disposed on the first connecting portion, the second stop portion cooperating with the first stop portion to limit a sliding travel of the first connecting portion relative to the first inner portion.

9. The housing assembly of claim 8, wherein the first limiting portion includes a limiting post disposed on the first inner portion, the second limiting portion includes a limiting groove disposed on the first connecting portion, the limiting post is slidably connected to the limiting groove, and a sliding direction of the limiting post is parallel to a sliding direction of the first connecting portion.

10. The housing assembly of claim 1, further comprising a second positioning mechanism including a third positioning portion disposed at the second inner side portion and a fourth positioning portion disposed at the second connecting portion, the third positioning portion cooperating with the fourth positioning portion to position the second connecting portion and the second inner side portion.

11. The housing assembly of claim 1, further comprising a second limiting mechanism including a third limiting portion disposed on the second inner portion and a fourth limiting portion disposed on the second connecting portion, the fourth limiting portion cooperating with the third limiting portion to limit a sliding travel of the second connecting portion relative to the second inner portion.

12. The housing assembly of claim 4, wherein the connector includes a first link and a second link rotatably coupled to the first shaft, the first and second connection portions rotatably coupled to the first shaft via the first and second links, respectively.

13. The housing assembly of claim 12, wherein the connector further comprises a third link, a fourth link, a second shaft, and a third shaft, the third link rotatably coupled to the first link by the second shaft, the fourth link rotatably coupled to the second link by the third shaft, the second shaft parallel to the first shaft, the third shaft parallel to the first shaft, the first and second connecting portions fixedly coupled to the third and fourth links, respectively.

14. The housing assembly of claim 12, wherein the connector further comprises a dampening mechanism, the dampening mechanism comprising a dampening assembly, the dampening assembly comprising two dampening rings, the two dampening rings being nested about the first axis of rotation, the two dampening rings being secured to the first and second links, respectively, and abutting each other, and imparting frictional resistance to each other as the first and second links rotate relative to each other.

15. A display device comprising the housing assembly of any one of claims 1-14, the display device further comprising a flexible display screen fixedly connected to the first housing and the second housing.

16. A mobile terminal comprising the display device of claim 15, the mobile terminal further comprising an electronics assembly secured to the housing assembly electrically connected to the flexible display screen.