CN113163034B

CN113163034B - Shell assembly and electronic device

Info

Publication number: CN113163034B
Application number: CN202110425715.1A
Authority: CN
Inventors: 符勇
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2023-04-21
Anticipated expiration: 2041-04-20
Also published as: CN113163034A

Abstract

The application discloses a shell assembly and an electronic device. The shell component comprises a body and a telescopic supporting component which is connected with the body in a sliding manner, a flat part of the flexible display screen is exposed out of the shell component and connected with the telescopic supporting component, an expansion part can be hidden in the shell component, and a first rack is formed on the body. The telescopic support assembly comprises a first bracket, a second bracket and a first belt transmission mechanism, and the first bracket is in sliding connection with the body. The second support is connected with the first support in a sliding way, and a second rack is formed on the second support. The first gear and the second gear of the first belt transmission mechanism are both rotatably arranged on the first bracket, the first conveyor belt is wound on the first gear and the second gear and is meshed with the first gear and the second gear, the first gear is meshed with the first rack, and the second gear is meshed with the second rack. In this manner, the expansion portion can be extended or retracted into the housing assembly by telescoping the support assembly to change the display area of the electronic device.

Description

Shell assembly and electronic device

Technical Field

The present application relates to the field of electronics, and more particularly, to a housing assembly and an electronic device.

Background

In the related art, a display screen of an electronic device such as a mobile phone can be partially hidden in a housing, and when a larger display area is required, the display screen can be partially unfolded from the housing to meet the user's requirements. Therefore, a technical problem of how to realize the expansion of the display screen to increase the display area is studied by technicians.

Disclosure of Invention

Embodiments of the present application provide a housing assembly and an electronic device.

The shell assembly is used for being connected with a flexible display screen and comprises a flat part and an expansion part, the shell assembly comprises a body and a telescopic support assembly which is in sliding connection with the body, the flat part is exposed out of the shell assembly and is connected with the telescopic support assembly, the expansion part can be hidden in the shell assembly, and a first rack is formed on the body; the telescopic support assembly includes:

the first bracket is in sliding connection with the body;

the second bracket is in sliding connection with the first bracket, and a second rack is formed on the second bracket; and

the first belt transmission mechanism is arranged on the first bracket and comprises a first gear, a second gear and a first conveyor belt, the first gear and the second gear are rotatably arranged on the first bracket, the first conveyor belt is wound on the first gear and the second gear and meshed with the first gear and the second gear, the first gear is meshed with the first rack, and the second gear is meshed with the second rack;

The first bracket can slide relative to the body in a direction away from each other so as to drive the second bracket to slide relative to the first bracket in a direction away from each other through the first rack, the first belt transmission mechanism and the second rack, so that the expansion part can be at least partially unfolded outside the shell assembly.

The electronic device according to the embodiment of the application includes:

a flexible display screen comprising a flat portion and an extended portion; and

above-mentioned shell component, flat part expose outside the body and with flexible supporting component connects, extension can hide in the body.

In the shell subassembly and the electron device of this application implementation, flexible supporting component includes first support, second support and first belt drive mechanism, and first support and body sliding connection are formed with first rack on the body, second support and first support sliding connection are formed with the second rack on the second support. The first rack, the first belt drive mechanism and the second rack drive the second bracket to slide relative to the first bracket in a direction away from each other so that the expansion part can be at least partially unfolded outside the shell assembly. Thus, when a smaller display area is needed to be carried conveniently, the first bracket, the second bracket and the first belt transmission mechanism can hide the display screen in the shell assembly; when needing great display area, first support, second support and first belt drive mechanism can hide the part of display screen in the shell subassembly and expand outside the casing in order to satisfy the user demand, and user experience is preferred.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic perspective view of an electronic device according to an embodiment of the present application;

FIG. 2 is a schematic view of another perspective structure of an electronic device according to an embodiment of the present application;

FIG. 3 is a schematic view of a portion of an electronic device according to an embodiment of the present application;

FIG. 4 is a schematic view of a further portion of the structure of an electronic device according to an embodiment of the present application;

FIG. 5 is a schematic view of a further portion of the structure of an electronic device according to an embodiment of the present application;

fig. 6 is a schematic plan view of an electronic device according to an embodiment of the present application;

FIG. 7 is a schematic cross-sectional view taken along line VII-VII of FIG. 6 in accordance with an embodiment of the present application;

FIG. 8 is an enlarged schematic view of A in FIG. 3 according to an embodiment of the present application;

FIG. 9 is an enlarged schematic view of B in FIG. 7 according to an embodiment of the present application;

FIG. 10 is a schematic view of another part of the structure of the electronic device according to the embodiment of the present application;

FIG. 11 is a schematic view of a further portion of the structure of an electronic device according to an embodiment of the present application;

fig. 12 is an enlarged schematic view of C in fig. 11 according to an embodiment of the present application.

Description of main reference numerals:

an electronic device 100;

the housing assembly 10, the body 11, the first rack 111, the second rack 112, the third rack 113, the fourth rack 114, the take-up shaft 115, the telescopic support assembly 12, the first bracket 121, the second bracket 122, the third bracket 123, the fourth bracket 124, the fifth bracket 125, the sixth bracket 126, the first belt drive mechanism 13, the first gear 131, the second gear 132, the first belt 133, the second belt drive mechanism 14, the third gear 141, the fourth gear 142, the second belt 143, the third belt drive mechanism 15, the fifth gear 151, the sixth gear 152, the third belt 153, the fourth belt drive mechanism 16, the first pulley 161, the second pulley 162, the fourth belt 163, the fifth belt drive mechanism 17, the first roller 171, the second roller 172, the fifth belt 173, the flexible display screen 20, the flat portion 21, the extension portion 22, the driving member 30, the motor 31, the transmission assembly 32, the gear set 321, the screen drive shaft 322, the appearance member 40, the magnetic member 50.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate a relationship between the various embodiments and/or settings discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

Referring to fig. 1 and 2, an electronic device 100 of an embodiment of the present application includes a housing assembly 10 and a flexible display screen 20 of an embodiment of the present application. The flexible display 20 includes a flat portion 21 and an extended portion 22. The flat portion 21 is exposed outside the body 11, and the expansion portion 22 can be hidden inside the body 11.

Referring to fig. 2 to 5, the shell assembly 10 according to the embodiment of the present application includes a body 11 and a telescopic support assembly 12, the telescopic support assembly 12 is slidably connected to the body 11, a flat portion 21 is exposed outside the shell assembly 10 and connected to the telescopic support assembly 12, an extension portion 22 can be hidden inside the shell assembly 10, and a first rack 111 is formed on the body 11.

The telescopic support assembly 12 includes a first bracket 121, a second bracket 122, and a first belt transmission mechanism 13, the first bracket 121 being slidably connected to the body 11. The second bracket 122 is slidably connected to the first bracket 121, the second bracket 122 has a second rack 112 formed thereon, and the first belt transmission mechanism 13 is mounted on the first bracket 121.

Referring to fig. 4 and 5, the first belt transmission mechanism 13 includes a first gear 131, a second gear 132, and a first belt conveyor 133, wherein the first gear 131 and the second gear 132 are rotatably disposed on the first bracket 121, the first belt conveyor 133 is wound around the first gear 131 and the second gear 132 and is engaged with the first gear 131 and the second gear 132, the first gear 131 is further engaged with the first rack 111, and the second gear 132 is further engaged with the second rack 112.

The first bracket 121 can slide in a direction away from each other relative to the body 11 to drive the second bracket 122 to slide in a direction away from each other relative to the first bracket 121 through the first rack 111, the first belt transmission mechanism 13 and the second rack 112, so that the expansion portion 22 can be at least partially unfolded out of the housing assembly 10.

In the case assembly 10 and the electronic device 100 implemented in the application, the telescopic support assembly 12 includes a first bracket 121, a second bracket 122 and a first belt transmission mechanism 13, the first bracket 121 is slidably connected with the body 11, a first rack 111 is formed on the body 11, the second bracket 122 is slidably connected with the first bracket 121, and a second rack 112 is formed on the second bracket 122. The first rack 111, the first belt transmission mechanism 13, and the second rack 112 drive the second bracket 122 to slide in a direction away from each other with respect to the first bracket 121, so that the expansion portion 22 can be at least partially expanded out of the case assembly 10. In this way, when a larger display area is required, only the first bracket 121 is required to move in a direction away from each other relative to the body 11, and the second bracket 122 is driven to move in a direction away from each other relative to the first bracket 121 by the first belt transmission mechanism 13, so that the expansion portion 22 of the flexible display screen 20 hidden in the shell assembly 10 can be at least partially expanded out of the shell assembly 10 to expand the display area of the electronic device 100, so as to meet the use requirement of the user.

In this embodiment, the type of the electronic device 100 is not limited, and may be a smart phone, a tablet computer, or an electronic device that needs the flexible display screen 20, such as a game device, a vehicle-mounted computer, a notebook computer, a data storage device, an audio playing device, a video playing device, and a wearable device, only the electronic device 100 includes the flexible display screen 20 and the shell assembly 10 of this embodiment, so that the extension portion 22 may be hidden in the body 11 or be unfolded outside the body 11.

The electronic device 100 in the embodiment of the present application may include two forms. The first configuration is a configuration in which the telescopic support assembly 12 is retracted in the body 11 (as shown in fig. 1), that is, a configuration in which the electronic device 100 is located when the first bracket 121 and the second bracket 122 are simultaneously moved toward the body 11 and moved to the extreme position, and in this configuration, the flat portion 21 of the flexible display 20 is exposed outside the case assembly 10, the extension 22 is substantially completely hidden in the case assembly 10, and the display area of the electronic device 100 is small and portable.

The second configuration is a configuration in which the second support 122 moves away from the first support 121, and the first support 121 moves away from the body 11, so that the extension portion 22 of the flexible display 20 can be gradually unfolded out of the housing assembly 10 (see fig. 2), and in the second configuration, the extension portion 22 of the flexible display 20 is at least partially unfolded out of the housing assembly 10 to form a display portion of the electronic device 100 together with the flat portion 21, so that a display area of the electronic device 100 is larger to provide a better display effect for a user.

In the present embodiment, the "display area" refers to an area of the flexible display screen 20 exposed outside the case assembly 10 for display. Further, in the embodiments of the present application, it is understood that the extension portion 22 can be hidden within the case assembly 10, that the extension portion 22 can be received within the inner space of the case assembly 10 without being exposed, or that the extension portion 22 can be hidden at the rear surface of the case assembly 10 without being exposed, and herein, the extension portion 22 can be received within the inner space of the case assembly 10 without being exposed is explained as an example.

In the embodiment of the present application, the first gear 131 and the second gear 132 may be duplicate gears of the same type to ensure that the transmission speeds of the first gear 131 and the second gear 132 are the same. The first rack 111 on the body 11 may be meshed with the upper teeth of the first gear 131, the lower teeth of the first gear 131 are meshed with the first conveyor belt 133, the first conveyor belt 133 is meshed with the lower teeth of the second gear 132, and the upper teeth of the second gear 132 are meshed with the second rack 112.

Taking the telescopic support assembly 12 as an example, the telescopic support assembly only comprises the first bracket 121 and the second bracket 122, in this case, one end of the flat portion 21 can be fixed on the second bracket 122, when the first bracket 121 moves away from the body 11, the upper teeth of the first gear 131 roll along the first rack 111 towards the direction approaching the body 11, the first conveyor belt 133 is wound on the first gear 131 and the second gear 132, and the first gear 131 drives the second gear 132 to rotate through the first conveyor belt 133, so as to push the second rack 112 to move towards the direction approaching the first bracket 121. In this way, the first support 121 can be moved away from the body 11, and the second support 122 can be slid away from each other relative to the first support 121, while the first support 121 is moved away from the body 11, so that the expansion portion 22 can be at least partially expanded out of the housing assembly 10.

When the first bracket 121 moves close to the body 11, the upper teeth of the first gear 131 roll along the first rack 111 toward the body 11, the first conveyor belt 133 is wound around the first gear 131 and the second gear 132, and the first gear 131 drives the second gear 132 to rotate reversely through the first conveyor belt 133. Rotation of the second gear 132 urges the second rack 112 in a direction approaching the body 11. In this way, the first support 121 is moved toward the body 11 relative to the body 11, and the second support 122 is slid toward each other relative to the first support 121, thereby allowing the expansion portion 22 to be at least partially retracted into the housing assembly 10.

It will be appreciated that in other embodiments, the first belt drive mechanism 13 may also use twin rollers and a belt as the drive mechanism, for example, in which case the first gear 131 and the second gear 132 may each comprise a pulley and a gear coaxially disposed, the belt being wound around the pulleys to be driven by friction, the gears meshing with the first rack 111 and the second rack 112 to convert rotation into translational motion.

Note that the formation of the first rack 111 on the body 11 means that the first rack 111 may be attached to the body 11, or the body 11 and the first rack 111 may be integrally formed. Similarly, the second rack 112 may be fixedly mounted on the second bracket 122, or the second rack 112 and the second bracket 122 may be integrally formed.

In the description of embodiments of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

It should be noted that in the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. Furthermore, it should be noted that in the description of the present application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

Referring to fig. 7 to 12, in some embodiments, the electronic device 100 further includes a driving component 30, where the driving component 30 is installed in the body 11 and connected to the first bracket 121, and the driving component 30 is used for driving the first bracket 121 to slide relative to the body 11.

In this manner, the first bracket 121 may be automatically driven to slide relative to the body 11 by the driving member 30, thereby enabling the expansion portion 22 to be deployed out of the case assembly 10 or retracted into the case assembly 10.

Further, referring to fig. 2 and 7, in some embodiments, the driving member 30 is further coupled to the expansion portion 22, and the driving member 30 is capable of driving the expansion portion 22 to be deployed outside the housing assembly 10 or retracted inside the housing assembly 10 while driving the first bracket 121 to slide relative to the body 11.

In this way, the sliding of the stent and the deployment and retraction of the expansion portion 22 can be achieved by only one driving member 30, saving costs.

In one possible embodiment, the driving part 30 has the same number of teeth of the first gear 131 and the second gear 132 when driving the first bracket 121 and the second bracket 122, so that the first bracket 121 travels a distance equal to the distance the second bracket 122 travels with respect to the first bracket 121 with respect to the body 11.

Further, referring to fig. 3 to 5, in some embodiments, the telescopic support assembly 12 may further include a third bracket 123, a fourth bracket 124, and a second belt transmission mechanism 14, the third bracket 123 is slidably connected to the second bracket 122, the fourth bracket 124 is slidably connected to the third bracket 123, the expansion portion 22 is connected to the fourth bracket 124, a third rack 113 is formed on the fourth bracket 124, and the second belt transmission mechanism 14 is disposed on the third bracket 123.

The second belt transmission mechanism 14 includes a third gear 141, a fourth gear 142, and a second belt conveyer 143, the third gear 141 and the fourth gear 142 are rotatably disposed on the third support 123, the second belt conveyer 143 is wound on the third gear 141 and the fourth gear 142 and is engaged with the third gear 141 and the fourth gear 142, the second rack 112 is a double-sided rack, the third gear 141 is engaged with the second gear 132 and both sides of the second rack 112, and the fourth gear 142 is also engaged with the third rack 113.

When the expansion portion 22 is at least partially unfolded out of the body 11, the fourth bracket 124 can slide in a direction away from each other relative to the third bracket 123 under the action of the flexible display screen 20, so that the third bracket 123 is driven to slide in a direction away from each other relative to the second bracket 122 by the third rack 113, the second belt transmission mechanism 14 and the second rack 112.

In this way, the third bracket 123 and the fourth bracket 124 may be integrally separated from each other with respect to the second bracket 122, and may be separated from each other, so that the telescopic support assembly 12 may implement multi-stage telescopic operation to further increase the display area of the flexible display screen 20. And, the third bracket 123 and the fourth bracket 124 can support the flexible display screen 20, avoid the flexible display screen 20 from being damaged, and simultaneously can increase the display area of the flexible display screen 20, and the second belt transmission mechanism 14 can ensure the stable movement of the third bracket 123 and the fourth bracket 124.

In such an embodiment, the electronic device 100 may include only four brackets, with the flat portion 21 of the flexible display screen 20 fixedly connected to the fourth bracket 124. In the first configuration, the fourth bracket 124, the third bracket 123, the second bracket 122, and the first bracket 121 are sequentially engaged with the body 11, or the fourth bracket 124, the third bracket 123, the second bracket 122, and the first bracket 121 are all engaged with the body 11, so that the expansion portion 22 can be at least partially retracted in the case assembly 10, and the electronic device 100 is convenient to carry. In the second state, the fourth bracket 124, the third bracket 123, the second bracket 122 and the first bracket 121 may be unfolded out of the body 11, so that the expansion portion 22 may be unfolded out of the body 11 at least partially, and thus the electronic device 100 has a sufficiently large display area.

It should be noted that, in such an embodiment, during the first and second modes of the electronic device 100, the first bracket 121 and the second bracket 122 are directly driven by the driving component 30, and the fourth bracket is connected to the flat portion 21 so that the flexible display 20 can drive the fourth bracket 124 to slide.

In one example, when the driving unit 30 drives the electronic device 100 to change from the first configuration to the second configuration, the driving unit 30 drives the first bracket 121 and the second bracket 122 away from the body 11, and at the same time, the driving unit 30 drives the expansion portion 22 of the flexible display 20 to gradually extend out of the housing assembly 10. The flat portion 21 of the flexible display 20 is connected to the fourth bracket 124, so that the expansion portion 22 of the flexible display 20 can push the fourth bracket 124 to move away from the body 11 in the unfolding process, and when the fourth bracket 124 moves, the third rack 113 on the fourth bracket 124 drives the fourth gear 142 and the third gear 141 to rotate, and as the third gear 141 is meshed with the second rack 112, the third gear 141 rolls on the second rack 112 in a direction away from the second bracket 122, so that the third bracket 123 moves towards a direction away from each other relative to the second bracket 122 to realize the unfolding of the third bracket 123 and the second bracket 122, thereby realizing the transformation of the form of the electronic device 100.

When the driving unit 30 drives the electronic device 100 to change from the second configuration to the first configuration, the driving unit 30 drives the expansion portion 22 of the flexible display 20 to gradually retract into the housing assembly 10 while driving the first bracket 121 and the second bracket 122 to approach the body 11. The flat portion 21 of the flexible display 20 is connected to the fourth bracket 124, so that the flexible display 20 can pull the fourth bracket 124 to move towards the direction approaching to the body 11, and when the fourth bracket 124 moves, the third rack 113 on the fourth bracket 124 drives the fourth gear 142 and the third gear 141 to rotate reversely, and as the third gear 141 is meshed with the second rack 112, the third gear 141 rolls on the second rack 112 towards the direction approaching to the second bracket 122, so that the third bracket 123 moves towards the direction approaching to each other relative to the second bracket 122 to retract and jogge the third bracket 123 and the second bracket 122, thereby realizing the conversion of the form of the electronic device 100.

In the above example, the driving part 30 driving the first and

second brackets

121 and 122 and the driving part 30 driving the flexible display 20 are the same driving part 30. It will be appreciated that in other embodiments, the driving component 30 for driving the first bracket 121 to move and the driving component 30 for driving the flexible display 20 to move may be different driving components 30, so long as the requirement is satisfied.

In addition, during the switching of the electronic device 100 from the first configuration to the second configuration, the third and

fourth stents

123, 124 may be synchronized with the movement of the first and

second stents

121, 122 such that the four stents are simultaneously abducted. It is also possible to wait for the first bracket 121 and the second bracket 122 to move to the extreme positions, and then continue to expand the expansion portion 22, so as to drive the third bracket 123 and the fourth bracket 124 to start the expansion movement, which is not limited herein. During the switching of the electronic device 100 from the second configuration to the first configuration, the third and

fourth brackets

123, 124 may be synchronized with the movement of the first and

second brackets

121, 122 such that the four brackets retract simultaneously.

Specifically, in such an embodiment, the second belt transmission mechanism 14 may substantially conform to the structure of the first belt transmission mechanism 13. That is, the third gear 141 and the fourth gear 142 may also be double gears such that the third gear 141 may simultaneously engage the second rack 112 and the second conveyor belt 143, while the fourth gear 142 may simultaneously engage the second conveyor belt 143 and the third rack 113. In this way, the third bracket 123 and the fourth bracket 124 can be ensured to stably slide. At this time, the fourth stand 124 may be connected to the flat portion 21, so that the flexible display 20 may drive the third stand 123 and the fourth stand 124 to move, thereby enabling the electronic device 100 to complete the conversion of the configuration.

The second rack 112 is a double-sided rack, so that the third gear 141 and the second gear 132 can be respectively meshed with two sides of the second rack 112, thereby avoiding interference between the third gear 141 and the second gear 132. Meanwhile, the third gear 141 is engaged with the second rack 112 to ensure the smoothness of the movement of the third bracket 123.

The third gear 141 and the fourth gear 142 may be duplicate gears of the same type to ensure that the third gear 141 and the fourth gear 142 are driven at the same speed.

When the telescopic support assembly 12 only includes the first bracket 121 to the fourth bracket 124, in one possible embodiment, during the process of gradually expanding the extension portion 22 out of the shell assembly 10, the flexible display screen 20 pushes the fourth bracket 124 to gradually move away from the body 11, the fourth bracket 124 drives the second rack 112 to move away relative to the third bracket 123, the upper teeth of the fourth gear 142 mesh with the second rack 112, so that the fourth gear 142 rolls on the second rack 112, and the lower teeth of the fourth gear 142 mesh with the second conveyor belt 143.

The second conveyor belt 143 is wound around the third gear 141 and the fourth gear 142, and the second conveyor belt 143 rotates under the action of the fourth gear 142 to drive the third gear 141. The third gear 141 has lower teeth engaging the second conveyor belt 143 and upper teeth engaging the second rack 112 such that the third gear 141 can roll on the second rack 112. In this way, the third stand 123 is far away from the second stand 122, and at the same time, the fourth stand 124 can be far away from the third stand 123, so that the four stands are fully unfolded relative to the body 11, and the electronic device 100 is converted from the first configuration to the second configuration.

During the gradual retraction of the expansion 22 into the housing assembly 10, the flexible display 20 pulls the fourth bracket 124 to gradually move toward the body 11, and the fourth gear 142, the third gear 141 and the second conveyor belt 143 are reversed to effect the transition of the electronic device 100 from the second configuration to the first configuration.

Further, referring to fig. 3 to 7, in some embodiments, the telescopic support assembly 12 further includes a fifth bracket 125, a sixth bracket 126, and a third belt transmission mechanism 15, the fifth bracket 125 is slidably connected to the fourth bracket 124, the sixth bracket 126 is slidably connected to the fifth bracket 125, the flattening portion 21 is connected to the sixth bracket 126, a fourth rack 114 is formed on the sixth bracket 126, and the third belt transmission mechanism 15 is disposed on the fifth bracket 125.

The third belt transmission mechanism 15 includes a fifth gear 151, a sixth gear 152, and a third belt 153, where the fifth gear 151 and the sixth gear 152 are rotatably disposed on the fifth bracket 125, the third belt 153 is wound around the fifth gear 151 and the sixth gear 152 and is engaged with the fifth gear 151 and the sixth gear 152, the third rack 113 is a double-sided rack, the fifth gear 151 is engaged with the fourth gear 142 and both sides of the third rack 113, and the sixth gear 152 is also engaged with the fourth rack 114.

When the expansion portion 22 is at least partially unfolded out of the body 11, the sixth support 126 can slide in a direction away from each other relative to the fifth support 125 under the action of the flexible display screen 20 to drive the fifth support 125 to slide in a direction away from each other relative to the fourth support 124 through the fourth rack 114, the third belt transmission mechanism 15 and the third rack 113, the sixth support 126 is used for supporting the flat portion 21, and the body 11, the first support 121, the second support 122, the third support 123, the fourth support 124 and the fifth support 125 are used for supporting the portion of the expansion portion 22 unfolded out of the body 11.

In this way, the fifth bracket 125 and the sixth bracket 126 may be integrally separated from each other with respect to the fourth bracket 124, and may be separated from each other, so that the telescopic support assembly 12 may implement multi-stage telescopic operation to further increase the display area of the flexible display screen 20. In addition, the fifth bracket 125 and the sixth bracket 126 can support the flexible display screen 20, so that the flexible display screen 20 is prevented from being damaged, meanwhile, the display area of the flexible display screen 20 can be further increased, and the third belt transmission mechanism 15 can ensure the movement stability of the fifth bracket 125 and the sixth bracket 126.

In such an embodiment, the electronic device 100 may include only six holders. In the first configuration, the sixth support 126, the fifth support 125, the fourth support 124, the third support 123, the second support 122, and the first support 121 may be retracted back into the body 11 such that the expansion portion 22 may be at least partially retracted within the housing assembly 10, thereby making the electronic device 100 convenient to carry;

In the second configuration, the sixth support 126, the fifth support 125, the fourth support 124, the third support 123, the second support 122 and the first support 121 may be unfolded out of the body 11, so that the extension portion 22 may be at least partially unfolded out of the body 11, and thus the electronic device 100 has a sufficiently large display area.

Specifically, the fifth gear 151 and the sixth gear 152 may be duplicate gears such that the fifth gear 151 may simultaneously engage the third rack 113 and the third belt 153, while the sixth gear 152 may simultaneously engage the third belt 153 and the fourth rack 114. In this way, the fifth bracket 125 and the sixth bracket 126 can be ensured to stably slide. At this time, the sixth stand 126 may be connected to the flat portion 21, so that the flexible display 20 may drive the fifth stand 125 and the sixth stand 126 to move, thereby enabling the electronic device 100 to complete the conversion of the configuration.

Further, the third rack 113 is a double-sided rack, so that the fifth gear 151 and the fourth gear 142 can be respectively meshed with two sides of the third rack 113, thereby avoiding the fifth gear 151 and the fourth gear 142 from interfering with each other. The fifth gear 151 and the sixth gear 152 may be duplicate gears of the same type to ensure that the transmission speeds of the fifth gear 151 and the sixth gear 152 are the same.

Referring to fig. 4 and 5, when the telescopic support assembly 12 includes the first bracket 121 to the sixth bracket 126, in one possible embodiment, during the process of the driving component 30 driving the electronic device 100 to change from the first configuration to the second configuration, the first bracket 121 and the second bracket 122 are moved away from each other relative to the body 11 under the driving of the driving component 30.

Meanwhile, the expansion part 22 is gradually unfolded out of the shell assembly 10 under the driving of the driving part 30, in the process, when the flexible display screen 20 pushes the sixth support 126 to gradually move towards the direction away from the body 11, the sixth support 126 drives the fourth rack 114 to move away from the fifth support 125, the upper teeth of the sixth gear 152 are meshed with the fourth rack 114, so that the sixth gear 152 rolls on the fourth rack 114, the lower teeth of the sixth gear 152 are meshed with the third conveyor belt 153, and the sixth gear 152 can drive the fifth gear 151 to rotate through the third conveyor belt 153, so that the fifth gear 151 can roll on the third rack 113 towards the direction away from the fourth support 124. In this way, when the sixth support 126 is far away from the fifth support 125, the fifth support 125 is far away from the fourth support 124, and when the fifth support 125 is far away from the fourth support 124 to the limit position, the fifth support 125 drives the fourth support 124 to far away from the third support 123, and further drives the third support 123 to far away from the second support 122 through the third rack 113 and the second belt transmission mechanism 14 (the specific implementation principle can be referred to above), so that the six supports are completely unfolded relative to the body 11, and the electronic device 100 is converted from the first configuration to the second configuration.

When the driving member 30 drives the electronic device 100 to change from the second configuration to the first configuration, the driving member 30 drives the first bracket 121 and the second bracket 122 to approach the body 11, and the driving member 30 drives the expansion portion 22 to gradually retract into the housing assembly 10. The flat portion 21 of the flexible display 20 is connected to the sixth bracket 126, so that the flexible display 20 can pull the sixth bracket 126 to move towards the direction approaching the body 11, the sixth bracket 126 drives the fifth bracket 125 to approach each other to the limit position relative to the fourth bracket 124 through the third belt transmission mechanism 15, at this time, the flexible display 20 pulls the fourth bracket 124 to move towards the direction approaching the body 11, and the fourth bracket 124 drives the third bracket 123 to approach each other to the limit position relative to the second bracket 122 through the second belt transmission mechanism 14, thereby realizing the conversion of the form of the electronic device 100.

In the above example, the driving part 30 driving the first and

second brackets

121 and 122 and the driving part 30 driving the flexible display 20 are the same driving part 30. It will be appreciated that in other embodiments, the driving component 30 for driving the first bracket 121 to move and the driving component 30 for driving the flexible display 20 to move may be different driving components 30, so long as the requirement is satisfied. Also, in the above-described embodiment, the driving part 30 drives the first and

second brackets

121 and 122 to move a distance smaller than a distance that the expansion part 22 is expanded out of the case assembly 10 or retracted into the case assembly 10.

In addition, during the form transformation of the electronic device 100, the third stent 123, the fourth stent 124, the fifth stent 125, and the sixth stent 126 may be synchronized with the movement of the first stent 121, the second stent 122, such that six stents are simultaneously abducted. It is also possible to wait for the first bracket 121 and the second bracket 122 to move to the limit positions, and the other four brackets start to move again, which is not limited herein.

Of course, it is understood that in one possible embodiment, the electronic device 100 may also include only the third bracket 123 and omit the fourth to sixth brackets 124 to 126. In such an embodiment, the telescoping support assembly 12 further includes a third bracket 123, the third bracket 123 being slidably coupled to the second bracket 122, the third bracket 123 being coupled to the flattened portion 21, and the second belt drive mechanism may be omitted. When the expansion 22 is at least partially unfolded out of the body 11, the third support 123 can slide relative to the second support 122 in a direction away from each other under the action of the flexible display 20 to keep the flexible display 20 flat.

Furthermore, it is also understood that in another possible embodiment, the electronic device 100 may also include the first bracket 121 to the fourth bracket 124 and omit the fifth bracket 125 and the sixth bracket 126, or include only the first bracket 121 to the fifth bracket 125 and omit the sixth bracket 126, which is not limited herein.

Referring to fig. 1 to 3, in some embodiments, in the first configuration, the first bracket 121, the second bracket 122, the third bracket 123, the fourth bracket 124, the fifth bracket 125 and the sixth bracket 126 are sequentially engaged with each other, and the extension portion 22 is completely hidden in the body 11.

In the second state, the first, second, third, fourth, fifth, and

sixth brackets

121, 122, 123, 124, 125, and 126 are separated, and the expansion portion 22 is at least partially unfolded out of the body 11, and the body 11, the first, second, third, fourth, and

fifth brackets

121, 122, 123, 124, and 125 support portions of the expansion portion 22 unfolded out of the body 11.

Thus, the six brackets are retracted into the body 11 at the same time, so that the electronic device 100 is small in size and convenient to carry; the six brackets are simultaneously unfolded out of the body 11, so that the six brackets can support the flexible display screen 20, and the electronic device 100 has a larger display area. The electronic device 100 is switched between the two modes, so that the electronic device 100 has the advantages of both modes, and the use experience of the user is improved.

It can be understood that, in the first aspect, the six holders are sequentially engaged with and abut against all the retractable bodies 11, so that the volume of the electronic device 100 is only the size of the body 11, and the electronic device is convenient for a user to carry. At this time, the expansion portion 22 is completely hidden in the body 11, and belongs to a hidden structure.

In the first configuration, the extended portion 22 of the flexible display 20 is not used for display and only the flattened portion 21 is used for display. Upon a separation movement of the six brackets relative to the body 11, the flexible display 20 may be moved such that the extension 22 of the flexible display 20 is at least partially pulled out of the housing assembly 10 to switch to the second configuration.

In the second state, the six holders and the body 11 are sequentially separated, the expansion portion 22 is at least partially pulled out from the case assembly 10, and the flat portion 21 and the expansion portion 22 are simultaneously used for display, thereby changing the display area of the electronic device 100. At this time, the display area is much larger than that of the first form, providing a better operation experience. The six brackets and the body 11 can support the flexible display 20, so as to ensure the stability of the electronic device 100 in use.

Specifically, in one example, when the electronic device 100 is switched from the first configuration to the second configuration, the six holders are moved away from the body 11, and the six holders are also moved away from the body 11, that is, the six holders are moved away from the body 11, and the sixth holder 126 is moved faster than the first five holders, the fifth holder 125 is moved faster than the first four holders, and so on. In this way, the six stents may be fully deployed, thereby transitioning to the second configuration. Wherein the first and

second brackets

121 and 122 are driven by the motor 31, and the third, fourth, fifth and

sixth brackets

123, 124, 125 and 126 are pushed by the flexible display screen 20. The motor 31 driving the first and

second brackets

121 and 122 and the motor 31 driving the flexible display 20 may be the same motor 31 or may be different motors 31.

In another example, when the electronic device 100 is shifted from the second configuration to the first configuration, the six holders move closer to the body 11, and the six holders move closer to each other, that is, the six holders move closer to the body 11, and the sixth holder 126 moves faster than the first five holders, the fifth holder 125 moves faster than the first four holders, and so on. In this way, six holders can be fully retracted into the body 11, thereby switching to the first configuration.

Referring to fig. 3 to 5, in some embodiments, the first gear 131, the second gear 132, the third gear 141, the fourth gear 142, the fifth gear 151 and the sixth gear 152 are all duplicate gears.

As such, the first gear 131, the second gear 132, the third gear 141, the fourth gear 142, the fifth gear 151, and the sixth gear 152 may simultaneously engage the rack and the belt to ensure the stability of the transmission of the housing assembly 10.

Specifically, all six gears need to be connected to two transmission members, and thus all six gears are duplicate gears. Because the six brackets have similar dimensions in the sliding direction, the six gears can have the same tooth number, or the six gears can use the same model, so as to ensure that the transmission of each bracket is uniform.

Meanwhile, the duplex gear has two teeth portions, so that the two transmission members engaging the duplex gear have a height difference in the thickness direction of the electronic device 100, or the transmission members can be stacked in the thickness direction of the electronic device 100, and further six supports can be stacked in the thickness direction of the electronic device 100, so that the six supports can be fully retracted into the body 11 in the first form of the electronic device 100, and the electronic device 100 is convenient to carry.

In some embodiments, a duplex roller and belt may be used instead of a duplex gear and belt, which may be driven by friction, thereby driving movement between the six brackets and between the brackets and the body 11.

Referring to fig. 10, in some embodiments, the surfaces of the body 11, the first bracket 121, the second bracket 122, the third bracket 123, the fourth bracket 124, the fifth bracket 125, and the sixth bracket 126 for supporting the flexible display screen 20 are flush.

In this way, the body 11, the first support 121, the second support 122, the third support 123, the fourth support 124, the fifth support 125 and the sixth support 126 can bear the flexible display screen 20, when the expansion portion 22 is unfolded out of the shell assembly 10, the first support 121, the second support 122, the third support 123, the fourth support 124 and the fifth support 125 can support the expansion portion 22, and the surfaces of the first support 121, the second support 122, the third support 123, the fourth support 124 and the fifth support 125 are all flush, so that no protrusion or depression can appear on the expansion portion 22 after the expansion portion is unfolded, so as to influence the use experience of a user.

It will be appreciated that the user may need to maintain the display screen sufficiently smooth and flat while using the electronic device 100. The flexible display 20 has certain flexibility and bendable characteristics. Accordingly, the body 11, the first bracket 121, the second bracket 122, the third bracket 123, the fourth bracket 124, the fifth bracket 125, and the sixth bracket 126 may support the flexible display 20 so that the electronic device 100 may display flatness.

Referring to fig. 3 to 5, in some embodiments, the electronic device 100 further includes a magnetic member 50, the magnetic member 50 is mounted on the telescopic support assembly 12, and the magnetic member 50 is used for attracting the flexible display 20.

In this way, the magnetic member 50 can adsorb the flexible display 20 on the shell assembly 10, so as to avoid wrinkling of the flexible display 20 during the form conversion of the electronic device 100, and ensure stable force transmission of the flexible display 20 during the two form conversion processes.

Specifically, during the transition of the electronic device 100 from the first configuration to the second configuration, the driving component 30 may drive the extension portion 22 of the flexible display 20 to gradually expand out of the housing assembly 10, and as described above, the extension portion 22 may push the outermost bracket (such as the sixth bracket 126 shown in fig. 3) of the telescopic support assembly 12 to move away from the body 11 during the expansion. In this process, the magnetic member 50 can tightly adsorb the flexible display screen 20 located on the telescopic support assembly 12 on the shell assembly 10, so as to avoid the situation that the flexible display screen 20 cannot push out the support on the outermost side of the telescopic support assembly 12 due to wrinkling caused by upward component force generated on the flexible display screen 20 when the flexible display screen receives the acting force of the driving component 30.

Similarly, in the process of switching the electronic device 100 from the second configuration to the first configuration, the flexible display 20 may be subjected to the tensile force of the driving component 30, and in this process, the magnetic element 50 may also adsorb the flexible display 20 on the housing assembly 10, so as to assist the extension portion 22 to retract into the housing assembly 10 smoothly.

Referring to fig. 11 and 12, in some embodiments, the drive member 30 includes a motor 31 and a drive assembly 32, the drive assembly 32 including the fourth belt drive 16.

The fourth belt transmission mechanism 16 includes a first belt pulley 161, a second belt pulley 162, and a fourth belt conveyer 163 wound around the first belt pulley 161 and the second belt pulley 162, the motor 31 is connected to the first belt pulley 161, the first bracket 121 is fixedly connected to the fourth belt conveyer 163, and the motor 31 is used for driving the first belt pulley 161 to rotate.

In this way, the motor 31 may drive the movement of the first bracket 121 through the first pulley 161, the second pulley 162 and the fourth pulley 163, and thus the sliding of the first bracket 121 with respect to the body 11 is achieved, thereby achieving the change of the form of the electronic device 100.

Specifically, the driving part 30 is installed in the body 11, the driving part 30 includes a motor 31 and a transmission assembly 32, and the transmission assembly 32 is connected to the motor 31 such that the transmission assembly 32 can transmit the driving force of the motor 31 to the bracket. The first support 121 may be clamped to the first conveyor belt 133 by a fixed clamp (not shown).

In one possible embodiment, the motor 31 transmits a driving force to the first pulley 161 to rotate the first pulley 161, the fourth pulley 163 is wound around the first pulley 161 and the second pulley 162, and the first pulley 161 rotates to allow the fourth pulley 163 to move around the first pulley 161 and the second pulley 162, and since the first bracket 121 is fixedly connected to the fourth pulley 163, the first bracket 121 can be driven to slide relative to the body 11 to change the shape of the electronic device 100 when the fourth pulley 163 moves.

Referring to fig. 11 and 12, in some embodiments, the transmission assembly 32 further includes a gear set 321 and a fifth belt transmission 17, the motor 31 is connected to the gear set 321, and the gear set 321 is connected to the first belt wheel 161.

The fifth belt transmission mechanism 17 comprises a first roller 171, a second roller 172 and a fifth conveyor belt 173 wound on the first roller 171 and the second roller 172, the first roller 171 is connected with the gear set 321, the fifth conveyor belt 173 is fixedly connected with one end of the expanding portion 22 far away from the flattening portion 21, the middle portion of the expanding portion 22 is wound on the body 11, and the motor 31 is used for driving the first belt wheel 161 and the first roller 171 to rotate through the gear set 321 so that the expanding portion 22 can be at least partially unfolded out of the shell assembly 10 or retracted into the shell assembly 10.

In this way, the motor 31 can drive the first belt wheel 161 to rotate through the gear set 321 to drive the first bracket 121, and simultaneously drive the expansion part 22 to move through the gear set 321 and the fifth belt transmission mechanism 17 to realize the expansion part 22 expanding and retracting.

In such an embodiment, in the first configuration, the extension 22 of the flexible display 20 may be wound around the fifth conveyor 173 after bypassing the body 11 to make the electrical device portable. The first roller 171, the second roller 172 and the fifth conveyor 173 may drive the flexible display 20 to move, thereby realizing a change of the state of the electronic device 100.

Specifically, the gear set 321 is in power coupling with a motor shaft of the motor 31, and the driving force generated by the motor 31 can be transmitted to the fourth belt transmission mechanism 16 and the fifth belt transmission mechanism 17 through the gear set 321, or the motor shaft rotates to drive the gear set 321 to rotate, and the gear set 321 adjusts the rotation speed to a proper size and then transmits the rotation speed to the fourth belt transmission mechanism 16 and the fifth belt transmission mechanism 17, so as to further realize the conversion of the form of the electronic device 100.

In the first configuration, the extension 22 may be wound around the fifth conveyor 173, and when the second configuration is switched, the motor 31 drives the first roller 171 to rotate, so that the fifth conveyor 173 rotates, and the extension 22 is released to complete the switching of the second configuration.

In the embodiment of the present application, the motor 31 and the gear set 321 that drive the fourth belt transmission mechanism 16 and the fifth belt transmission mechanism 17 may be the same, and at this time, the gear set 321 connects the fourth belt transmission mechanism 16 and the fifth belt transmission mechanism 17 at different transmission ratios, so that the fourth belt transmission mechanism 16 and the fifth belt transmission mechanism 17 drive the first bracket 121 and the flexible display screen 20 at different speeds, respectively. In one possible embodiment, the transmission speed of the fifth belt transmission mechanism 17 may be six times that of the fourth belt transmission mechanism 16, or when the first bracket 121 is far away from the body 11 by one centimeter, the flexible display screen 20 drives the sixth bracket 126 to be far away from the body 11 by six centimeters, so that the cooperative movement of the six brackets can be realized.

In some embodiments, two different driving members 30 may be used for the expansion portion 22 and the first bracket 121, and when the electronic device 100 is converted from the first configuration to the second configuration, the two driving members 30 may be simultaneously activated to move the first bracket 121 and the second bracket 122 away from the body 11 to the limit position, then the driving member 30 driving the first bracket 121 to move is closed, and the driving member 30 driving the expansion portion 22 continues to operate so that the expansion portion 22 can drive the third bracket 123, the fourth bracket 124, the fifth bracket 125 and the sixth bracket 126 to slide when being deployed until all the brackets move to the limit position, that is, the second configuration.

When the electronic device 100 is changed from the second configuration to the first configuration, the flexible display 20 is driven to pull the third bracket 123, the fourth bracket 124, the fifth bracket 125 and the sixth bracket 126 toward the body 11 to approach the movement limit, and then the first bracket 121 and the second bracket 122 are driven to slide toward the body 11 to the movement limit, i.e. the first configuration.

Referring to fig. 9 to 12, in some embodiments, the transmission assembly 32 further includes a screen driving shaft 322 rotatably disposed on the body 11 and abutting against a middle portion of the expansion portion 22, the screen driving shaft 322 is connected to the gear set 321, and the screen driving shaft 322 is configured to rotate under the driving of the motor 31 and the gear set 321 to drive the expansion portion 22 to be deployed outside the housing assembly 10 or retracted inside the housing assembly 10.

In this way, the screen driving shaft 322 can assist the movement of the flexible display screen 20, so as to avoid wrinkling of the flexible display screen 20, and make the electronic device 100 stable in the process of switching between the two modes. That is, the screen drive shaft 322 is capable of providing a driving force to the extension 22 such that the extension 22 is capable of having sufficient force to drive the outermost leg of the telescoping support assembly 12 (e.g., the sixth leg 126 of FIG. 3) away from each other relative to the body 11 when deployed, while also being capable of providing sufficient force to drive the outermost leg of the telescoping support assembly 12 (e.g., the sixth leg 126 of FIG. 3) toward each other relative to the body 11 when the extension 22 is retracted.

Illustratively, there may be two screen drive shafts 322, with two screen drive shafts 322 at one end of the body 11. During the form conversion of the electronic device 100, the motor 31 and the gear set 321 also drive the screen driving shaft 322 to rotate, and the roller portion of the screen driving shaft 322 is in direct contact with the flexible display screen 20, so that the expansion portion 22 of the flexible display screen 20 is driven to be expanded out of the housing assembly 10 or retracted into the housing assembly 10 by friction force.

It will be appreciated that during a form change of the electronic device 100, the screen driving shaft 322 drives the flexible display screen 20 to move by friction force, and in such an embodiment, the flexible display screen 20 may be tightly adsorbed on the housing assembly 10 by cooperating with the magnetic member 50, so as to ensure that the flexible display screen 20 always moves along the sliding direction of the bracket.

Referring to fig. 7 and 11, in some embodiments, the electronic device 100 further includes a cover 40 disposed at the bottom of the telescopic support assembly 12, the cover 40 seals a side of the telescopic support assembly 12 facing away from the flat portion 21, the cover 40 is connected to the driving component 30, and the driving component 30 is used for winding or releasing the cover 40 while driving the first bracket 121 to slide relative to the body 11.

In this way, the appearance piece 40 can bear each bracket to absorb impact and vibration, so as to enhance the strength of the bracket and avoid the electronic device 100 from being damaged in the second state.

Specifically, referring to fig. 9, the body 11 is provided with a winding shaft 115, and the winding shaft 115 is used for winding the appearance piece 40 on the winding shaft 115 when the second shape is converted into the first shape, or the appearance piece 40 can be wound on the winding shaft 115; when the first form is converted into the second form, the winding shaft 18 can rotate under the driving of the motor 31 and the gear set 321 to release the appearance piece 40, so that the appearance piece 40 is received at the bottom of the telescopic support assembly 12 and can move along with the bracket, and further the transmission structure of the bracket piece is prevented from being directly exposed. The exterior member 40 can absorb impact and vibration of the external environment and protect the internal components of the electronic device 100.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the present application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the present application.

Claims

1. A housing assembly for connecting a flexible display screen, the flexible display screen comprising a flat portion and an extension portion, the housing assembly comprising a body and a telescoping support assembly slidably connected to the body, the flat portion exposed outside the housing assembly and connected to the telescoping support assembly, the extension portion being capable of being concealed within the housing assembly, the body having a first rack formed thereon; the telescopic support assembly includes:

the first bracket is in sliding connection with the body;

Wherein the first bracket is slidable relative to the body in a direction away from each other to drive the second bracket relative to the first bracket via the first rack, the first belt drive mechanism and the second rack to slide in a direction away from each other to enable the expansion portion to be at least partially deployed out of the housing assembly;

the telescopic support assembly further comprises a third support, a fourth support and a second belt transmission mechanism, the third support is in sliding connection with the second support, the fourth support is in sliding connection with the third support, the expansion part is connected with the fourth support, a third rack is formed on the fourth support, and the second belt transmission mechanism is arranged on the third support;

the second belt transmission mechanism comprises a third gear, a fourth gear and a second conveyor belt, the third gear and the fourth gear are both rotatably arranged on the third bracket, the second conveyor belt is wound on the third gear and the fourth gear and is meshed with the third gear and the fourth gear, the second rack is a double-sided rack, the third gear is meshed with the second gear and two sides of the second rack, and the fourth gear is meshed with the third rack;

When the expansion part is at least partially unfolded outside the body, the fourth bracket can slide relative to the third bracket in a mutually-far direction under the action of the flexible display screen so as to drive the third bracket to slide relative to the second bracket in the mutually-far direction through the third rack, the second belt transmission mechanism and the second rack.

2. The shell assembly of claim 1, wherein the telescoping support assembly further comprises a third bracket slidably coupled to the second bracket, the third bracket coupled to the flat portion;

when the expansion part is at least partially unfolded outside the body, the third support can slide relative to the second support in a mutually-far direction under the action of the flexible display screen so as to keep the flexible display screen flat.

3. The housing assembly of claim 1, wherein the telescoping support assembly further comprises a fifth bracket slidably connected to the fourth bracket, a sixth bracket slidably connected to the fifth bracket, the flat portion connected to the sixth bracket, a fourth rack formed on the sixth bracket, and a third belt drive mechanism disposed on the fifth bracket;

The third belt transmission mechanism comprises a fifth gear, a sixth gear and a third conveyor belt, wherein the fifth gear and the sixth gear are both rotatably arranged on the fifth bracket, the third conveyor belt is wound on the fifth gear and the sixth gear and is meshed with the fifth gear and the sixth gear, the third rack is a double-sided rack, the fifth gear is meshed with the fourth gear and both sides of the third rack, and the sixth gear is meshed with the fourth rack;

when the expansion part is at least partially unfolded outside the body, the sixth bracket can slide relative to the fifth bracket in a mutually-far direction under the action of the flexible display screen so as to drive the fifth bracket to slide relative to the fourth bracket in the mutually-far direction through the fourth rack, the third belt transmission mechanism and the third rack

The sixth support is used for supporting the flattening portion, and the body, the first support, the second support, the third support, the fourth support and the fifth support are used for supporting the portion, which is unfolded out of the body, of the expanding portion.

4. A housing assembly according to claim 3, wherein the housing assembly is switchable between a first configuration in which the first, second, third, fourth, fifth and sixth brackets are in engagement in sequence, the expansion portion being fully concealed within the body;

in the second configuration, the first, second, third, fourth, fifth, and sixth brackets are separated, the expansion portion is at least partially deployed out of the body, and the body, the first, second, third, fourth, and fifth brackets support portions of the expansion portion that are deployed out of the body.

5. The housing assembly of claim 3 wherein said first gear, said second gear, said third gear, said fourth gear, said fifth gear and said sixth gear are all double gears.

6. The housing assembly of claim 3, wherein surfaces on the body, the first bracket, the second bracket, the third bracket, the fourth bracket, the fifth bracket, and the sixth bracket for supporting the flexible display screen are all flush.

7. An electronic device, comprising:

the housing assembly of any one of claims 1-6, the flattened portion exposed outside the body and connected to the telescoping support assembly, the expanded portion being capable of being concealed within the body.

8. The electronic device of claim 7, further comprising a drive member mounted within the body and coupled to the first bracket, the drive member configured to drive the first bracket to slide relative to the body.

9. The electronic device of claim 8, wherein the drive member is further coupled to the expansion portion, the drive member capable of driving the expansion portion to at least partially extend out of or retract into the housing assembly while driving the first bracket to slide relative to the body.

10. The electronic device of claim 9, wherein the driving member comprises a motor and a transmission assembly, the transmission assembly comprises a fourth belt transmission mechanism, the fourth belt transmission mechanism comprises a first belt wheel, a second belt wheel and a fourth belt wound on the first belt wheel and the second belt wheel, the motor is connected with the first belt wheel, the first bracket is fixedly connected with the fourth belt, and the motor is used for driving the first belt wheel to rotate.

11. The electronic device of claim 10, wherein the transmission assembly further comprises a gear set and a fifth belt transmission mechanism, the motor is connected with the gear set, the gear set is connected with the first belt wheel, the fifth belt transmission mechanism comprises a first roller, a second roller and a fifth conveyor belt wound on the first roller and the second roller, the first roller is connected with the gear set, the fifth conveyor belt is fixedly connected with one end of the expansion part far away from the flattening part, the middle part of the expansion part is wound on the body, and the motor is used for driving the first belt wheel and the first roller to rotate through the gear set so that the expansion part can be at least partially unfolded out of the shell assembly or retracted into the shell assembly.

12. The electronic device of claim 11, wherein the transmission assembly further comprises a screen drive shaft rotatably disposed on the body and abutting a middle portion of the expansion portion, the screen drive shaft coupled to the gear set, the screen drive shaft configured to rotate under the drive of the motor and the gear set to drive the expansion portion to extend out of or retract into the housing assembly.

13. The electronic device of claim 8, further comprising an outer member disposed at a bottom of the telescopic support assembly, the outer member sealing a side of the telescopic support assembly facing away from the flat portion, the outer member being coupled to the driving member for winding or releasing the outer member while driving the first bracket to slide relative to the body.

14. The electronic device of claim 7, further comprising a magnetic member mounted on the telescoping support assembly, the magnetic member configured to attract the flexible display screen.