CN219180130U

CN219180130U - Mobile device with retractable screen

Info

Publication number: CN219180130U
Application number: CN202223384163.3U
Authority: CN
Inventors: 颜清辉; 黄俊皓
Original assignee: Syncmold Enterprise Corp
Current assignee: Syncmold Enterprise Corp
Priority date: 2022-04-22
Filing date: 2022-12-16
Publication date: 2023-06-13
Anticipated expiration: 2032-12-16
Also published as: CN116935746A; TWM640568U; TW202343189A; TWI835447B; TWM640433U; CN218494601U

Abstract

The utility model provides a telescopic screen action device, which comprises a main body unit, a movable unit, at least one elastic piece, a flexible display screen and at least one fixed force spring, wherein the flexible display screen is supported by a first supporting surface of the main body unit when the movable unit is in a retracted state, and the flexible display screen is jointly supported by the first supporting surface of the main body unit and a second supporting surface of the movable unit when the movable unit is in an extended state.

Description

Mobile device with retractable screen

Technical Field

The present utility model relates to a retractable screen mobile device, and more particularly to a retractable screen mobile device suitable for a flexible display.

Background

In order to facilitate carrying, the related mobile device is often designed with light and thin requirements, so that the display screen size of the mobile device is limited. However, with the development of mobile devices, the demands of users for large-sized display screens have increased dramatically, so many related products capable of expanding the size of display screens have been introduced in recent years, such as using foldable flexible display screens, so that the mobile devices can increase the display screen area when the mobile devices have the demands of use, but can meet the demands of light and thin carrying and storage.

However, the tensile stress or material fatigue generated during the transition between the unfolded and folded states of the foldable flexible display screen easily causes the flexible display screen to crease, damage or crack.

Accordingly, a primary objective of the present utility model is to provide a mobile device with a retractable display screen, which can be selectively switched between an extended state and a retracted state according to the requirements during use.

Disclosure of Invention

The object of the present utility model is to provide a telescopic screen mobile device, comprising: the main body unit comprises a first shell, a first supporting piece and a containing space, wherein the first supporting piece is arranged on the first shell, is provided with a first supporting surface and surrounds and defines the containing space with the first shell; the movable unit is movably arranged on the main body unit along a telescopic axis, can realize telescopic conversion between a retracted state and an extended state relative to the main body unit, comprises a frame body, a pivot, at least one hook piece, a second support piece, a steering shaft and a movable plate, wherein the pivot is arranged on one side of the frame body away from the first shell piece, the hook piece is pivotally arranged on the pivot in a hanging manner, the second support piece is pivotally connected to the hook piece and provided with a second support surface, the second support piece can realize pivotal conversion between a falling plate position and an alignment position relative to the pivot, the steering shaft is connected to the frame body and is accommodated in the accommodating space, and the movable plate partially covers the first shell piece; at least one elastic piece, two ends are set up on the first shell piece and the movable plate separately, and tend to make the movable unit keep in the retracted state or the extended state; the flexible display screen comprises a first end and a second end, the first end is arranged on the first supporting piece, the flexible display screen covers the first supporting surface, turns around the pivot and turns around the turning shaft again, and the second end is fixed on the first shell piece; the flexible display screen comprises a first shell, a second shell, at least one fixed force spring, a first elastic component, a second elastic component and a first elastic component, wherein the first elastic component is arranged on the first shell, the second elastic component is arranged on the second shell, and the first elastic component is arranged on the first shell; wherein, in the retracted state, the pivot and the first shell are closest to each other; in the extended state, the pivot and the first housing are furthest apart from each other.

In an embodiment, in the retracted state, the second supporting member is at the falling plate position and is partially accommodated in the accommodating space and partially overlapped with the first supporting member, the first supporting surface and the second supporting surface are not coplanar, and the flexible display screen is mainly supported by the first supporting surface; when the flexible display screen is in the extended state, the second supporting piece is in the aligned position, the first supporting piece and the second supporting piece are not overlapped, the first supporting surface and the second supporting surface are substantially coplanar, and the flexible display screen is supported by the first supporting surface and the second supporting surface.

In an embodiment, the movable unit further includes at least one compression spring disposed on the frame and abutting against the second support member, and constantly providing a supporting force on the second support member, wherein the compression spring makes the second support member tend to approach the first support member in the retracted state, and the compression spring supports the second support member in the extended state, and makes the second support member coplanar with the first support member, and jointly supports the flexible display screen.

In an embodiment, the flexible display screen presents a generally zigzag cross section and has a display area, a first adduction area and a second adduction area, wherein the display area is between the first end of the flexible display screen and the pivot, the first adduction area is between the pivot and the steering shaft, the second adduction area is between the steering shaft and the second end of the flexible display screen, and in the process that the movable unit is converted from the adduction state to the extension state relative to the main body unit, the area of the display area is gradually increased, the area of the first adduction area is unchanged, and the area of the second adduction area is gradually decreased.

In an embodiment, the second supporting member includes a main board, two wing boards, two supporting and holding parts, and at least one pivoting part, the wing boards are disposed on the side edges of the main board and are fixedly disposed on the frame body, the supporting and holding parts are disposed on the wing boards, are substantially parallel to the main board and are opposite to the main board, and are used for supporting and holding the compression springs, and the second supporting member is pivoted on the hook member through the pivoting part.

In an embodiment, the first supporting member further has a first inner surface and a first inclined surface, wherein the first inner surface is opposite to the first supporting surface, and the first inclined surface connects the first supporting surface and the first inner surface; the second supporting piece is also provided with a second inner face and a second inclined face, the second inner face is opposite to the second supporting face, the second inclined face is connected with the second supporting face and the second inner face, and when the second supporting piece is in the overhanging state, the first inclined face and the second inclined face are matched with each other and are substantially abutted against each other.

In one embodiment, a first acute angle is formed between the first supporting surface and the first inclined surface, a first obtuse angle is formed between the first inner surface and the first inclined surface, a second obtuse angle is formed between the second supporting surface and the second inclined surface, and a second acute angle is formed between the second inner surface and the second inclined surface.

In an embodiment, the first housing member includes a body and a fixing plate, the fixing plate is disposed on the body and has at least one displacement guide plate body, the displacement guide plate body sequentially has a first positioning section, a translation section, a lifting section, and a second positioning concave section, and the second support member further includes at least one moving guide member disposed on the wing plate corresponding to the displacement guide plate body and supporting the displacement guide plate body; when the movable unit is in the retracted state, the movable guide is positioned at the first positioning section; when the movable unit is separated from the retracted state, the movable guide piece slides along the translation section; when the movable unit is separated from the retracted state and is converted into the extended state, the movable guide piece slides from the translation section to the lifting section so as to lift the second supporting piece until the movable guide piece is positioned to the second positioning concave section, and the movable unit is in the extended state.

In an embodiment, the movable unit further comprises two guiding members, each of the wing plates is provided with a guiding groove, and the guiding members slide in the guiding grooves respectively.

In an embodiment, the second end of the flexible display screen is fixed on the fixed plate, and in the extended state, the display area is supported by the first supporting surface and the second supporting surface and is partially wound around the pivot, and in the retracted state, the display area is supported by the first supporting surface and is partially wound around the pivot, and in the retracted state or the extended state, the first and second retracted areas are constantly accommodated in the accommodating space.

In an embodiment, the movable plate has a back cover and a sliding member, the fixed plate has at least one hollow portion and a fixing portion, the elastic member is accommodated in the hollow portion and includes a first end portion and a second end portion, the first end portion is disposed on the fixing portion, the second end portion is disposed on the sliding member, in the retracted state, the second end portion is opposite to a side of the first end portion away from the pivot shaft and tends to push the sliding member away from the pivot shaft, thereby maintaining the retracted state, and in the extended state, the second end portion is opposite to a side of the first end portion close to the pivot shaft and tends to push the sliding member toward the pivot shaft, thereby maintaining the extended state.

In an embodiment, the sliding member further has at least one sliding protrusion, the fixed plate further has at least one sliding groove portion, the sliding groove portion extends along the telescopic axis, the sliding protrusion corresponds to and cooperates with the sliding groove portion, and when the movable unit moves relative to the main unit, the sliding protrusion moves along the sliding groove portion.

In one embodiment, the pivot is a damping shaft that provides a damping force when the movable unit moves relative to the main unit.

In an embodiment, the damping shaft has a hollow outer tube, an inner tube, a filling area, a damping oil and two oil seals, the inner tube is disposed in the hollow outer tube, two ends of the inner tube are respectively fixed on the frame, the hollow outer tube rotates relative to the inner tube, the filling area is sandwiched between the hollow outer tube and the inner tube, the damping oil is filled in the filling area, and the oil seals are respectively disposed at two ends of the filling area to seal the damping oil in the filling area.

In one embodiment, the pivot has a shaft extending along a steering axis substantially perpendicular to the telescopic axis, and at least one groove formed in the shaft for the hooking member to be hooked.

Drawings

FIG. 1 is a perspective view of a retractable screen mobile device according to an embodiment of the utility model in a retracted state;

FIG. 2 is a perspective view of a retractable screen mobile device in an extended state according to an embodiment of the present utility model;

FIG. 3 is a perspective exploded view of a retractable screen mobile device according to an embodiment of the present utility model;

FIG. 4 is a schematic perspective view of a fixing plate according to an embodiment of the present utility model;

FIG. 5 is an enlarged schematic view of a portion of a first support and a second support according to an embodiment of the utility model;

FIG. 6 is a schematic cross-sectional view of a pivot shaft according to an embodiment of the present utility model;

FIG. 7 is a schematic perspective view of a second support member according to an embodiment of the present utility model;

FIG. 8 is a schematic cross-sectional view of a second support member in a drop plate position according to an embodiment of the utility model;

FIG. 9 is a schematic cross-sectional view of a second support member in an aligned position according to an embodiment of the utility model;

FIG. 10 is a schematic cross-sectional view of a movable unit in a retracted state according to an embodiment of the utility model;

FIG. 11 is a schematic cross-sectional view of an embodiment of the movable unit in an extended state;

FIG. 12 is a schematic view of an active unit in a retracted state according to an embodiment of the present utility model;

FIG. 13 is a schematic view of an embodiment of an active unit in an extended state;

FIG. 14 is a schematic cross-sectional view of a movable unit in a retracted state according to an embodiment of the utility model;

FIG. 15 is a schematic cross-sectional view of an embodiment of the movable unit in an extended state.

Description of the reference numerals

1000. Mobile device with retractable screen

1. Main body unit

11. First shell member

111. Body

1111. Base seat

1112. First hollowed-out area

1113. First chute area

112. Fixing plate

1121. Displacement guide plate body

11211. First positioning section

11212. Translation section

11213. Lifting section

11214. Second positioning concave section

1122. Second hollowed-out area

1123. Fixing part

1124. Second chute area

1125. Locking part

113. Hollowed-out part

114. Chute part

1141. First supporting and holding end

1142. Second supporting and holding end

12. First support piece

121. A first supporting surface

122. A first inner face

123. First inclined plane

124. First internal acute angle

125. First internal obtuse angle

13. Accommodating space

2. Movable unit

21. Frame body

211. Arc-shaped plate

212. Sliding side plate

22. Pivot shaft

221. Shaft body

222. Groove(s)

223. Hollow outer tube

224. Inner pipe

225. Filling region

226. Damping oil

227. Oil seal

23. Hook piece

24. Second support piece

240. Main board

241. Wing plate

2411. Guide groove

24111. First end

24112. Second end

242. Supporting and holding part

243. Pivot joint

244. Movable guide

245. A second supporting surface

246. A second inner face

247. Second inclined plane

248. Second inner acute angle

249. Second internal obtuse angle

25. Steering shaft

26. Movable plate

261. Back cover

262. Sliding piece

2621. Sliding bump

27. Compression spring

28. Guide piece

281. Guide post

3. Elastic piece

31. First end portion

32. Second end portion

4. Flexible display screen

41. First end

42. Second end

43. Display area

44. First adduction zone

45. Second adduction zone

5. Constant force spring

51. Winding part

52. Telescoping part

A1 Telescopic axis

A2 Steering axis

Detailed Description

The present utility model will be further described in detail below with reference to specific embodiments and with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

The perspective views of the telescopic screen mobile device 1000 in the retracted state and the extended state of the present utility model are shown in fig. 1 and 2, respectively, and the perspective exploded view is shown in fig. 3, the telescopic screen mobile device 1000 mainly comprises a main body unit 1, a movable unit 2, two elastic members 3, a flexible display screen 4, and two force fixing springs 5.

Referring to fig. 4, the main unit 1 includes a first housing 11, a first supporting member 12, and a receiving space 13, wherein the first supporting member 12 is generally flat and disposed on the first housing 11, and surrounds the receiving space 13 with the first housing 11. The first housing 11 includes a main body 111, a fixing plate 112, two hollow portions 113, and two sliding groove portions 114. The body 111 has two bases 1111, two first hollow areas 1112, and two first chute areas 1113. The fixing plate 112 is disposed on the body 111, and has two displacement guide bodies 1121, two second hollow areas 1122, two fixing portions 1123, two second sliding groove areas 1124, and two locking portions 1125, wherein each displacement guide body 1121 has a first positioning section 11211, a translation section 11212, a lifting section 11213, and a second positioning concave section 11214. The first hollow area 1112 and the second hollow area 1122 are correspondingly overlapped with each other to form the hollow portion 113 together, and the first chute area 1113 and the second chute area 1124 are correspondingly overlapped with each other to form the chute portion 114 together. The locking portion 1125 is provided for fixing one end of the flexible display screen 4 thereon.

In detail, referring to the enlarged view of the portion of the first supporting member 12 shown in fig. 5, the first supporting member 12 has a first supporting surface 121, a first inner surface 122, a first inclined surface 123, a first inner acute angle 124, and a first inner obtuse angle 125, wherein the first inclined surface 123 connects the first supporting surface 121 and the first inner surface 122, the first inner acute angle 124 is sandwiched between the first supporting surface 121 and the first inclined surface 123, and the first inner obtuse angle 125 is sandwiched between the first inner surface 122 and the first inclined surface 123.

In addition, the main unit 1 further includes a panel body (not shown) electrically connected to the flexible display 5, that is, a module of electronic components such as a circuit board or a battery, so as to provide corresponding functions of the mobile device, and details thereof will not be described herein.

The movable unit 2 is disposed on the main unit 1, and can be telescopically transformed along a telescopic axis A1 between a retracted state (fig. 1) and an extended state (fig. 2) relative to the main unit 1.

In detail, as shown in fig. 3, the movable unit 2 includes a frame 21, a pivot 22, three hook members 23, a second supporting member 24, a steering shaft 25, a movable plate 26, two compression springs 27 (see fig. 10), and two guiding members 28, wherein the frame 21 has an arc plate 211 and two sliding side plates 212, the arc plate 211 is disposed at a side far from the first housing 11, and the sliding side plates 212 are correspondingly disposed at two ends of the arc plate 211 (i.e. are U-shaped together) and are pivotally connected to the pivot 22. The pivot 22 is a damping shaft, and has two ends respectively pivoted to the sliding side plates 212 and far from the first housing 11, and has a shaft 221 and three grooves 222, wherein the shaft 221 extends along a steering axis A2 substantially perpendicular to the telescopic axis A1.

In detail, referring to the cross-sectional view of the pivot 22 shown in fig. 6, the pivot 22 has a hollow outer tube 223, an inner tube 224, a filling area 225, a damping oil 226, and two oil seals 227, wherein the inner tube 224 is disposed in the hollow outer tube 223, two ends of the inner tube 224 are respectively fixed on the frame 21, the hollow outer tube 223 and the inner tube 224 can rotate relative to each other, the filling area 225 is sandwiched between the hollow outer tube 223 and the inner tube 224, the damping oil 226 is filled in the filling area 225, the oil seals 227 are respectively disposed at two ends of the filling area 225, the damping oil 226 is sealed in the filling area 225, and when the hollow outer tube 223 pivots relative to the inner tube 224, the damping oil 226 can provide a damping force.

The hook 23 is pivotally connected to the second supporting member 24, and is respectively and correspondingly hung on three grooves 222 of the pivot 22, and can pivot relative to the pivot 22.

Referring to the enlarged view of fig. 5 and the perspective view of fig. 7, the second supporting member 24 has a main plate 240, two wing plates 241, two supporting portions 242, three pivoting portions 243, a moving guide 244, a second supporting surface 245, a second inner surface 246, a second inclined surface 247, a second inner acute angle 248, and a second inner obtuse angle 249, and the second supporting member 24 is hung on the pivot 22 by the hook member 23, and can pivot relative to the hook member 23, and can pivot between a lowering position (fig. 8) and an aligning position (fig. 9).

The wing plates 241 are respectively disposed at two sides of the main board 240, extend substantially perpendicular to the main board 240, are fixedly disposed on the frame 21, and each have a guiding slot 2411, the supporting portion 242 is respectively disposed at one side of the wing plates 241 adjacent to each other, extends substantially parallel to the main board 240, and is supported by the compression spring 27, and the second supporting member 24 is pivotally connected to the hook member 23 through the pivot portion 243.

In detail, the moving guide 244 is disposed on the wing plate 241 corresponding to the displacement guide 1121 on the first housing 11, and abuts against the displacement guide 1121; as shown in fig. 10, the moving guide 244 is exemplified by a roller, and when the movable unit 2 is in the retracted state, the moving guide 244 is positioned at the first positioning section 11211, so that the second supporting member 24 is positioned at the lowering position; when the movable unit 2 is out of the retracted state, the moving guide 244 slides along the translation section 11212; when the movable unit 2 is moved out of the retracted state and is shifted to the extended state, the moving guide 244 slides from the translation section 11212 to the lifting section 11213 to lift the second supporting member 24 until the moving guide 244 is positioned to the second positioning concave section 11214, and the second supporting member 24 is shifted to the aligned position as shown in fig. 11, and the movable unit 2 is in the extended state.

Furthermore, referring to fig. 5, the second inner surface 246 is opposite to the second supporting surface 245, the second inclined surface 247 connects the second supporting surface 245 and the second inner surface 246, and a second inner obtuse angle 249 is formed between the second supporting surface 245 and the second inclined surface 247, and a second inner acute angle 248 is formed between the second inner surface 246 and the second inclined surface 247. Wherein the first internal acute angle 124 is substantially complementary to the second internal obtuse angle 249, and the first internal obtuse angle 125 is substantially complementary to the second internal acute angle 248. Thereby, the second support 24 can be smoothly shifted between the lowered plate position and the aligned position.

The steering shaft 25 is connected to the frame 21 through two ends thereof and is accommodated in the accommodating space 13, and the movable plate 26 partially covers the first housing member 11.

In detail, the movable plate 26 has a back cover 261 and a sliding member 262, and the sliding member 262 further has two sliding protrusions 2621 respectively corresponding to and cooperating with the sliding groove portions 114 of the first housing member 11, and when the movable unit 2 moves relative to the main unit 1, the sliding protrusions 2621 respectively move along the sliding groove portions 114. As shown in fig. 12, when the mobile unit 2 is in the retracted state, the sliding protrusions 2621 are respectively located at the first supporting ends 1141 of the sliding groove portions 114, and as shown in fig. 13, when the mobile unit 2 is converted to the extended state, the sliding protrusions 2621 are respectively located at the second supporting ends 1142 of the sliding groove portions 114.

The compression spring 27 is disposed on the frame 21 and abuts against the abutment plate 242 of the second support 24, and constantly provides a supporting force on the second support 24, as shown in fig. 10, in the retracted state, the compression spring 27 makes the second support 24 tend to approach the first support 12, and in the extended state, as shown in fig. 11, the compression spring 27 supports the second support 24 (i.e., the compression spring 27 constantly tends to provide an upward supporting force) and makes it coplanar with the first support 12, and jointly supports the flexible display screen 4 (fig. 15).

Referring to fig. 10 and 11, the guide members 28 are disposed on the movable plate 26, and each have a guide post 281, the guide posts 281 correspond to the guide grooves 2411 and can slide in the guide grooves 2411, as shown in fig. 10, when the second support member 24 is in the plate-lowering position, the guide posts 281 are at the first ends 24111 of the guide grooves 2411, as shown in fig. 11, and when the second support member 24 is in the alignment position, the guide posts 281 are at the second ends 24112 of the guide grooves 2411, so as to limit the moving path of the second support member 24 between the plate-lowering position and the alignment position, and ensure that the second support member 24 does not exceed the alignment position due to the upward supporting force provided by the compression springs 27.

Referring to fig. 12 and 13, the elastic members 3 are each a torsion spring, and include a first end 31 and a second end 32, the elastic members 3 are accommodated in the hollow portion 113, the first end 31 is fixed on the fixed portion 1123 of the first shell 11 of the main unit 1, the second end 32 is fixed on the sliding member 262 of the movable plate 26 of the movable unit 2, the elastic members 3 are configured to switch the movable unit 2 between the retracted state and the extended state, as shown in fig. 12, when the movable unit 2 is in the retracted state, the elastic members 3 are configured to tend to keep the movable unit 2 in the retracted state, and when the movable unit 2 is to switch the movable unit into the extended state, an external force is required to push the movable unit 2 out of the retracted state and gradually away from the main unit 1 against the elastic force provided by the elastic members 3, and after the movable unit 2 moves a specific distance relative to the main unit 1, the elastic members 3 are configured to provide an elastic force to make the movable unit 2 reach the extended state as shown in fig. 12, and tend to keep the movable unit 2 in the extended state as shown in fig. 13. Further, in switching between the retracted state and the extended state, the first end portion 31 is disposed on the fixed portion 1123 so as to be relatively immovable, and the second end portion 32 is disposed on the slider 262, whereas in the retracted state shown in fig. 12, the second end portion 32 is disposed opposite to a side (i.e., right side) of the first end portion 31 away from the pivot shaft 22 and tends to push the slider 262 away from the pivot shaft 22 so as to be maintained in the retracted state, whereas in the extended state shown in fig. 13, the second end portion 32 is disposed opposite to a side (i.e., left side) of the first end portion 31 close to the pivot shaft 22 and tends to push the slider 262 toward the pivot shaft 22 so as to be maintained in the extended state. In other embodiments, the elastic members 3 may be through-point springs, which may also produce the same effect.

Referring to fig. 14 and 15, the flexible display 4 includes a first end 41, a second end 42, a display area 43, a first inner area 44 and a second inner area 45. The first end 41 is disposed on the first supporting member 12, the flexible display screen 4 covers the first supporting surface 121, turns around the pivot 22, turns around the turning shaft 25 again, and the second end 42 is fixed on the locking portion 1125 of the first housing member 11, so that the flexible display screen 4 presents a generally zigzag mirror section (a zigzag section from the other side view of fig. 14). In detail, the display area 43 is between the first end 41 of the flexible display 4 and the pivot 22, the first inner area 44 is between the pivot 22 and the steering shaft 25, and the second inner area 45 is between the steering shaft 25 and the second end 42 of the flexible display 4. When the movable unit 2 is shifted from the retracted state (fig. 14) to the extended state (fig. 15) relative to the main unit 1, the flexible display screen 4 is dynamically changed, but the area of the first inner area 44 is unchanged, the area of the display area 43 is gradually increased, the area of the second inner area 45 is gradually decreased (the area of the display area 43 is substantially equal to the area of the second inner area 45), whereas when the movable unit 2 is shifted from the extended state (fig. 15) to the retracted state (fig. 14) relative to the main unit 1, the area of the first inner area 44 is unchanged, the area of the display area 43 is gradually decreased, and the area of the second inner area 45 is gradually increased.

That is, in the extended state, the display area 43 is supported by the first supporting surface 121 and the second supporting surface 241 and is partially wound around the pivot 22, and in the retracted state, the display area 43 is supported by the first supporting surface 121 and is partially wound around the pivot 22, and in the retracted state or the extended state, the first and second inner receiving

areas

44 and 45 are constantly received in the receiving space 13.

As shown in fig. 12 and 13, the constant force springs 5 each include a winding portion 51 and a telescopic portion 52, the winding portion 51 is disposed on the base 1111 of the first housing 11, and the telescopic portion 52 is fixed on the frame 21 and constantly provides a pulling force of the frame 21 along the telescopic axis A1 towards the first housing 11, so that the steering shaft 25 disposed on the frame 21 constantly tightens the flexible display 4.

In detail, as shown in fig. 1, 8, 10, 12 and 14, when the movable unit 2 is in the retracted state, the pivot 22 and the first housing 11 are closest to each other, the second supporting member 24 is located at the lowered position, and is received in the receiving space 13 and partially overlaps the first supporting member 12, and at this time, the first supporting surface 121 and the second supporting surface 241 are not coplanar, and the flexible display screen 4 is mainly supported by the first supporting surface 121. In addition, when the second supporting member 24 is located at the lowering position, the moving guide 244 is located at the first positioning section 11211, and the compression spring 27 is compressed by the second supporting member 24, and the area of the display area 43 of the flexible display screen 4 is minimum, and the area of the second inner receiving area 45 is maximum. In addition, as shown in fig. 12, when the movable unit 2 is in the retracted state, the sliding protrusion 2621 is located at the first supporting end 1141 of the sliding groove 114, and the elastic member 3 is compressed and accommodated in the hollow portion 113.

When the movable unit 2 is to be converted from the retracted state to the extended state as shown in fig. 2, 9, 11, 13, 15, to increase the display area of the flexible display screen 4, the user can provide an external force to the movable unit 2, so that the movable unit 2 is separated from the retracted state, at this time, the compressed elastic force provided by the elastic member 3 can make the movable unit 2 gradually move along the telescopic axis A1, wherein when the movable unit 2 moves along the telescopic axis A1 in a direction away from the first housing 11, the moving guide 244 of the second support member 24 moves on the translation section 11212, and the steering shaft 25 gradually moves away from the first end 41 of the flexible display screen 4 and simultaneously approaches the second end 42 of the flexible display screen 4, so that the area of the display area 43 gradually increases, while the area of the second inner area 45 gradually decreases, at the same time, the area of the first inner area 44 remains unchanged, and the telescopic portion 52 of the constant force spring 5 gradually moves away from the first end 1141 and the second end 1141 of the flexible display screen 4 gradually moves away from the first end 41 of the flexible display screen 4, and the telescopic portion 2622 gradually moves away from the first end 1141.

Then, when the moving guide 244 moves from the translation section 11212 to the lifting section and then to the second positioning concave section 11211, the second support 24 is lifted, and at the same time, the compression spring 27 provides an elastic force to the second support 24, and the second support 24 pivots slightly relative to the pivot 22, so that the second support 24 is aligned with the first support 12, as shown in fig. 15, the second support surface 241 and the first support surface 121 are coplanar and jointly support the display area 43 of the flexible display 4, at this time, the area of the display area 43 of the flexible display 4 is the largest, and the area of the second adduction area 45 is the smallest. Furthermore, as shown in fig. 13, when the movable unit 2 is in the extended state, the sliding protrusion 2621 is located at the second supporting end 1142 of the sliding groove 114.

In addition, since the pivot 22 is a damping shaft, when the movable unit 2 slides reciprocally relative to the main unit 1, the pivot 22 provides the damping force, so as to avoid damage to components caused by too fast movement of the movable unit 2 relative to the main unit 1, and provide a harmonious and flexible operation feel for users, so as to improve the quality and value of products. However, the pivot 22 is not limited to a damping shaft, and may be a rotating shaft having no damping effect. In addition, if the pivot 22 is a general rotation shaft without damping effect, a damping rod (not shown) may be disposed along the telescopic axis A1 to abut between the first housing 11 and the frame 21, thereby providing damping effect.

The above embodiments are only for illustrating the embodiments of the present utility model and illustrate the technical features of the present utility model, and are not intended to limit the scope of the present utility model. Modifications and substitutions that may be readily made by one of ordinary skill in the art are intended to be within the scope of the present utility model as defined by the following claims.

Claims

1. A retractable screen mobile device, comprising:

the main body unit comprises a first shell, a first supporting piece and a containing space, wherein the first supporting piece is arranged on the first shell, is provided with a first supporting surface and surrounds and defines the containing space with the first shell;

the movable unit is movably arranged on the main body unit along a telescopic axis, can realize telescopic conversion between a retracted state and an extended state relative to the main body unit, comprises a frame body, a pivot, at least one hook piece, a second support piece, a steering shaft and a movable plate, wherein the pivot is arranged on one side of the frame body away from the first shell piece, the hook piece is pivotally arranged on the pivot in a hanging manner, the second support piece is pivotally connected to the hook piece and provided with a second support surface, the second support piece can realize pivotal conversion between a falling plate position and an alignment position relative to the pivot, the steering shaft is connected to the frame body and is accommodated in the accommodating space, and the movable plate partially covers the first shell piece;

at least one elastic piece, two ends are set up on the first shell piece and the movable plate separately, and tend to make the movable unit keep in the retracted state or the extended state;

the flexible display screen comprises a first end and a second end, the first end is arranged on the first supporting piece, the flexible display screen covers the first supporting surface, turns around the pivot and turns around the turning shaft again, and the second end is fixed on the first shell piece; and

the at least one constant force spring comprises a winding part and a telescopic part, the winding part is arranged on the first shell, the telescopic part is arranged on the frame body and constantly provides a tensile force for the frame body, so that the steering shaft arranged on the frame body constantly tightens the flexible display screen;

wherein, in the retracted state, the pivot and the first shell are closest to each other; in the extended state, the pivot and the first housing are furthest apart from each other.

2. The retractable screen mobile device of claim 1, wherein in the retracted state, the second supporting member is at the lowering position, is partially received in the receiving space, and partially overlaps the first supporting member, the first supporting surface and the second supporting surface are not coplanar, and the flexible display is mainly supported by the first supporting surface; when the flexible display screen is in the extended state, the second supporting piece is in the aligned position, the first supporting piece and the second supporting piece are not overlapped, the first supporting surface and the second supporting surface are substantially coplanar, and the flexible display screen is supported by the first supporting surface and the second supporting surface.

3. The retractable screen mobile device of claim 2, wherein the mobile unit further comprises at least one compression spring disposed on the frame and abutting against the second support member and constantly providing a supporting force on the second support member, wherein the compression spring makes the second support member tend to approach the first support member in the retracted state, and the compression spring supports the second support member in the extended state and makes the compression spring coplanar with the first support member and jointly supports the flexible display screen.

4. The retractable screen mobile device of claim 3, wherein the flexible display exhibits a generally zig-zag cross-section and has a display area, a first adduction area and a second adduction area, the display area being interposed between the first end of the flexible display and the pivot, the first adduction area being interposed between the pivot and the steering shaft, the second adduction area being interposed between the steering shaft and the second end of the flexible display, an area of the display area being gradually increased and an area of the first adduction area being gradually decreased during a transition of the mobile unit from the retracted state to the extended state relative to the main unit.

5. The retractable screen mobile device of claim 4, wherein the second supporting member comprises a main board, two wing boards, two supporting and holding parts, and at least one pivoting part, the wing boards are disposed on the side edges of the main board and are fixedly disposed on the frame body, the supporting and holding parts are disposed on the wing boards, are substantially parallel to the main board relative to the main board, and are supported and held by the compression springs, and the second supporting member is pivotally connected to the hook member through the pivoting part.

6. The retractable screen mobile device of claim 5, wherein the first support further comprises a first inner surface and a first inclined surface, wherein the first inner surface is opposite to the first support surface, and the first inclined surface connects the first support surface and the first inner surface; the second supporting piece is also provided with a second inner face and a second inclined face, the second inner face is opposite to the second supporting face, the second inclined face is connected with the second supporting face and the second inner face, when the second supporting piece is in an outwards-extending state, the first inclined face and the second inclined face are matched with each other and are substantially abutted against each other, a first inner acute angle is clamped between the first supporting face and the first inclined face, a first inner obtuse angle is clamped between the first inner face and the first inclined face, a second inner obtuse angle is clamped between the second supporting face and the second inclined face, and a second inner acute angle is clamped between the second inner face and the second inclined face.

7. The retractable screen mobile device of claim 5, wherein the first housing comprises a body and a fixing plate, the fixing plate is disposed on the body and has at least one displacement guide plate body, the displacement guide plate body sequentially has a first positioning section, a translation section, a lifting section and a second positioning concave section, the second support further comprises at least one moving guide member, and the moving guide member is disposed on the wing plate corresponding to the displacement guide plate body and supports against the displacement guide plate body; when the movable unit is in the retracted state, the movable guide is positioned at the first positioning section; when the movable unit is separated from the retracted state, the movable guide piece slides along the translation section; when the movable unit is separated from the retracted state and is converted into the extended state, the movable guide piece slides from the translation section to the lifting section so as to lift the second supporting piece until the movable guide piece is positioned to the second positioning concave section, the movable unit is in the extended state, the movable unit further comprises two guide pieces, the wing plates are respectively provided with a guide groove, and the guide pieces respectively slide in the guide grooves.

8. The retractable screen of claim 7, wherein the second end of the flexible display screen is fixed to the fixed plate, in the extended state, the display area is supported by the first supporting surface and the second supporting surface and is partially wound around the pivot, in the retracted state, the display area is supported by the first supporting surface and is partially wound around the pivot, in the retracted state or the extended state, the first and second retracted areas are constantly received in the receiving space, the movable plate has a back cover and a sliding member, the fixed plate has at least one hollow portion and a fixed portion, the elastic member is received in the hollow portion and includes a first end portion and a second end portion, the first end portion is disposed on the fixed portion, the second end portion is disposed on the sliding member, in the retracted state, the second end portion is disposed on a side of the first end portion away from the pivot and tends to push the sliding member away from the pivot, in the retracted state, the first and the second end portion is disposed on the sliding member is disposed to move toward the sliding chute, in the extended state, the sliding chute is disposed along the sliding chute, and the sliding chute is disposed along the extended state, and the sliding chute is disposed along the sliding unit.

9. The retractable screen mobile device of any one of claims 1-8, wherein the pivot is a damping shaft providing a damping force when the mobile unit moves relative to the main unit.

10. The telescopic screen mobile apparatus according to claim 9, wherein the damping shaft has a hollow outer tube, an inner tube, a filling area, a damping oil, and two oil seals, the inner tube is disposed in the hollow outer tube, two ends of the inner tube are respectively fixed on the frame, the hollow outer tube rotates relative to the inner tube, the filling area is sandwiched between the hollow outer tube and the inner tube, the damping oil is filled in the filling area, the oil seals are respectively disposed at two ends of the filling area to seal the damping oil in the filling area, the pivot has a shaft and at least one groove, the shaft extends along a steering axis substantially perpendicular to the telescopic axis, and the groove is formed on the shaft and is correspondingly hung by the hook.