CN215773187U - Flexible screen folding mechanism and flexible screen terminal - Google Patents

Abstract

The disclosure relates to a flexible screen folding mechanism and a flexible screen terminal. The flexible screen folding mechanism comprises a supporting component and a transmission component, wherein the supporting component comprises a first supporting plate, a middle supporting plate and a second supporting plate which are all used for supporting the flexible screen, the transmission component comprises a first gear and a rack, the first gear is rotatably arranged on a middle body of a flexible screen terminal, the middle supporting plate is fixedly connected to the rack, the first gear is used for being meshed with the rack so as to drive the rack to move towards a first direction or move towards the direction opposite to the first direction when the first gear rotates, therefore, in the folding process of the flexible screen, the middle supporting plate can move towards the first direction and jointly enclose an accommodating groove with the first supporting plate and the second supporting plate so as to provide a folding space for the flexible screen, in the unfolding process of the flexible screen, the middle supporting plate can move towards the direction opposite to the first direction and jointly support the flexible screen with the first supporting plate and the second supporting plate, to reduce the risk of the flexible screen being pulled and wrinkled.

Description

Flexible screen folding mechanism and flexible screen terminal

Technical Field

The utility model relates to a flexible screen display device field specifically relates to a flexible screen folding mechanism and flexible screen terminal.

Background

In recent years, the flexible screen technology has been greatly developed and broken through, and a flexible screen mobile phone is more and more popular with consumers as a new development direction of mobile communication equipment, and also becomes an important field of angular force of mobile phone manufacturers. The flexible screen is a feasible scheme for solving the problem of screen display of the mobile phone and improving user experience, but a flexible screen mobile phone needs to be made, and besides the flexible screen technology, a folding mechanism is one of the biggest problems. When the flexible screen terminal is unfolded and folded, the flexible screen cannot be pulled to cause failure, so that the length of the flexible screen cannot be changed when the terminal is unfolded and folded. In the use, the flexible screen needs to be supported, otherwise, the user experience is influenced, the screen is dragged due to clicking operation, and the service life of the flexible screen is shortened. Traditional pivot obviously can't satisfy the requirement of flexible screen, needs to design a special folding mechanism, folding, the expansion in-process that realizes the cell-phone, can play better support to the bending part of flexible screen, can guarantee that flexible screen can not appear dragging and fold, guarantees the reliability and the life-span of flexible screen work.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a flexible screen folding mechanism and flexible screen terminal, at the expansion or folding in-process at flexible screen terminal, this flexible screen folding mechanism can play better support to the flexible screen, reduces or avoids the flexible screen to appear dragging and the risk of fold, is favorable to improving the reliability and the life-span of flexible screen work. Moreover, the space of the flexible screen terminal occupied by the flexible screen folding mechanism is reduced.

In order to achieve the above object, the present disclosure provides a flexible screen folding mechanism, including a support assembly and a transmission assembly, wherein the support assembly is configured to support a flexible screen of a flexible screen terminal, the transmission assembly is respectively connected to the support assembly and an intermediate body of the flexible screen terminal, the support assembly includes a first supporting plate, an intermediate supporting plate and a second supporting plate, which are all configured to support the flexible screen, the transmission assembly includes a first gear and a rack, the first gear is rotatably mounted on the intermediate body of the flexible screen terminal, the intermediate supporting plate is fixedly connected to the rack, wherein the first gear is configured to engage with the rack so as to drive the rack to move towards a first direction or towards a direction opposite to the first direction when the first gear rotates, so that the intermediate supporting plate can move towards the first direction during folding of the flexible screen, and the middle supporting plate can move towards the direction opposite to the first direction in the unfolding process of the flexible screen, and supports the flexible screen together with the first supporting plate and the second supporting plate.

Optionally, the rack is a double-sided rack, the flexible screen folding mechanism further includes a second gear, the second gear is rotatably mounted on the middle body, and the double-sided rack is movably clamped between the first gear and the second gear and is respectively engaged with the first gear and the second gear.

Optionally, the flexible screen folding mechanism further includes a first sliding support and a first flat shaft, the first sliding support is provided with a first sliding groove and a first flat hole, the first flat shaft is disposed on the middle body in a penetrating manner, the first gear is sleeved at the inner end of the first flat shaft, the outer end of the first flat shaft is fixed to the first flat hole, the end of the first support plate is provided with a first movable rotating shaft and a first fixed rotating shaft in the width direction of the first support plate, the first fixed rotating shaft is rotatably connected to the middle body, the first movable rotating shaft is used for moving in the first sliding groove during the rotation of the first support plate around the first fixed rotating shaft, the first sliding support is in transmission connection with the first terminal body of the flexible screen terminal, so that during the folding process of the first terminal body of the flexible screen terminal, the first sliding bracket drives the first gear and the first supporting plate to rotate, and/or,

the flexible screen folding mechanism further comprises a second sliding support and a second flat shaft, wherein a second sliding groove and a second flat hole are formed in the second sliding support, the second flat shaft is arranged on the middle body in a penetrating mode, a second gear is arranged at the inner end of the second flat shaft in a sleeved mode, the outer end of the second flat shaft is fixed to the second flat hole, a second movable rotating shaft and a second fixed rotating shaft are arranged at the end portion of the second supporting plate in the width direction of the second supporting plate respectively, the second fixed rotating shaft is used for being rotatably connected to the middle body, the second movable rotating shaft is used for moving in the second sliding groove in the rotating process of the second supporting plate around the second fixed rotating shaft, the second sliding support is in transmission connection with the second terminal body of the flexible screen terminal so that in the folding process of the second terminal body of the flexible screen terminal, and the second sliding support drives the second gear and the second supporting plate to rotate.

Optionally, the flexible screen folding mechanism further comprises a first screen stretching assembly, the first screen stretching assembly comprises a first screen stretching fixing plate and a first screen stretching spring, the first screen stretching fixing plate is used for being connected with a first terminal body of the flexible screen terminal, a first slide way with an opening at one end is arranged on the first screen stretching fixing plate, a first sliding portion is arranged on the first sliding support, one end of the first screen stretching spring is connected to a side wall at the other end of the first slide way, the other end of the first screen stretching spring abuts against the first sliding portion, and in the folding process of the first terminal body, the first sliding portion is slidably accommodated in the first slide way along the extending direction of the first slide way, and/or,

the flexible screen folding mechanism further comprises a second stretching component, the second stretching component comprises a second stretching fixing plate and a second stretching spring, the second stretching fixing plate is used for being connected with a second terminal body of the flexible screen terminal, a second slide with one open end is arranged on the second stretching fixing plate, a second sliding portion is arranged on the second sliding support, one end of the second stretching spring is connected to a side wall located at the other end of the second slide, the other end of the second stretching spring abuts against the second sliding portion, and in the folding process of the second terminal body, the second sliding portion can be slidably accommodated in the second slide along the extending direction of the second slide.

Optionally, the flexible screen folding mechanism further includes a first limiting pin disposed on the first sliding portion, a first limiting hole is disposed on the first screen stretching fixing plate, when the flexible screen is in the unfolding position, an end of the first limiting pin is limited in the first limiting hole to limit a sliding stroke of the first sliding portion in the first sliding way, and/or,

the flexible screen folding mechanism further comprises a second limiting pin arranged on the second sliding portion, a second position hole is formed in the second stretched screen fixing plate, and when the flexible screen is located at the unfolding position, the end portion of the second limiting pin is limited in the second limiting hole so as to limit the sliding stroke of the second sliding portion in the second slide way.

Optionally, the flexible screen folding mechanism further comprises at least two sets of cam assemblies, each set of cam assembly comprises a fixed member, a movable member and an elastic member, the movable member is in abutting fit with the fixed member, and the elastic member is used for providing an elastic force for the movable member to abut against the fixed member;

the fixed piece of one set of cam assembly is fixed to the middle body, and two ends of the elastic piece are respectively connected with the first sliding support and the movable piece;

the fixed piece of the other set of cam assembly is fixed to the middle body, and two ends of the elastic piece are respectively connected with the second sliding support and the movable piece;

when the flexible screen terminal is located at the unfolding position, the abutting part of each moving part is limited on the corresponding limiting surface of the fixing part, so that the first terminal body of the flexible screen terminal and the second terminal body of the flexible screen terminal can be kept at the unfolding position.

Optionally, the first sliding support and the second sliding support are provided with accommodating cavities with one open ends, the accommodating cavities are used for accommodating the corresponding elastic pieces and the moving pieces and guiding the moving pieces, one ends of the elastic pieces are connected to the inner walls of the accommodating cavities, the other ends of the elastic pieces are connected to the moving pieces, and the moving pieces are arranged in the accommodating cavities in a sliding mode.

According to another aspect of the present disclosure, a flexible screen terminal is provided, which includes a flexible screen, a first terminal body, a second terminal body, and an intermediate body, and the flexible screen terminal further includes the above-mentioned flexible screen folding mechanism, wherein the first terminal body is connected to the first supporting plate, and the first supporting plate is rotatably connected to the intermediate body;

the second terminal body is connected with the second supporting plate, the second supporting plate is rotatably connected with the middle body, and the flexible screen is supported on the first terminal body, the second terminal body, the middle body and the flexible screen folding mechanism.

Optionally, be provided with first spacing inclined plane, second spacing inclined plane and the spacing face of level on the middle body, first spacing inclined plane the spacing inclined plane of second with the spacing face of level be used for with the spacing cooperation of flexible screen folding mechanism, in order to avoid the flexible screen terminal continues to expand towards the direction of expansion after being in the exhibition position.

Optionally, the flexible screen terminal further comprises a first supporting plate and a second supporting plate which are used for supporting the flexible screen, the first supporting plate is arranged on one side of the first terminal body facing the flexible screen, the second supporting plate is arranged on one side of the second terminal body facing the flexible screen, and the flexible screen is respectively bonded with the first supporting plate, the second supporting plate and the middle supporting plate.

In the flexible screen folding mechanism provided by the present disclosure, the middle portion (i.e., the bent portion) of the flexible screen may be supported by the first blade, the middle blade, and the second blade. For example, during deployment of the flexible screen terminal, the intermediate support plate is moved in a first direction (e.g., inward to move upward) such that the intermediate support plate, the first support plate, and the second support plate collectively support the flexible screen. During the folding process of the flexible screen terminal, the middle supporting plate moves towards the direction opposite to the first direction relative to the first supporting plate and the second supporting plate (such as moves outwards to sink), and the flexible screen is supported all the time during the sinking process. So, can guarantee that the flexible screen all obtains good support at the expansion at flexible screen terminal, folding and in-process, can bear and press and indeformable to can reduce or avoid the flexible screen to appear dragging and the risk of fold, be favorable to improving the life of flexible screen and improve user experience.

Moreover, the middle supporting plate is utilized to sink, so that enough avoiding space can be provided for the bending part of the flexible screen, the bending radius of the flexible screen is ensured to meet the process requirement, and the generation of creases is reduced. In addition, as the middle space is utilized more to make a yielding space for the folding of the flexible screen, the position of the bending point of the flexible screen is moved downwards, and the width of the bending part of the flexible screen can be reduced. Therefore, be favorable to reducing the width at first layer board and second layer board to the reduction occupies the space at flexible screen terminal, lays for flexible screen terminal circuit board arrange and battery and leaves sufficient space, thereby has practiced thrift the inside valuable space at flexible screen terminal, does benefit to the purpose that realizes the frivolousization at flexible screen terminal and promote battery duration.

So, through above-mentioned technical scheme, this flexible screen folding mechanism does benefit to and reduces or avoids the flexible screen at flexible screen terminal to appear tearing and the risk of fold, does benefit to the outward appearance integrality of guaranteeing flexible screen terminal at the optional state, moreover, still is favorable to reducing the space of the flexible screen terminal both sides that flexible screen folding mechanism occupy. And the rack and the gear are used for transmission, so that the structure is simple and the transmission is reliable.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is a schematic perspective view of a flexible screen terminal in an unfolded state according to an embodiment of the present disclosure;

fig. 2 is a schematic perspective view of a flexible screen terminal provided in an embodiment of the present disclosure in a folded state;

fig. 3 is a schematic perspective view of a flexible screen folding mechanism of a flexible screen terminal according to an embodiment of the present disclosure;

FIG. 4 is an enlarged schematic view of portion A of FIG. 3;

fig. 5 is a schematic cross-sectional view of a flexible screen terminal provided in an embodiment of the present disclosure in a folded state;

FIG. 6 is a schematic cross-sectional view of a flexible screen terminal provided in an embodiment of the present disclosure in an unfolded state;

fig. 7 is an enlarged schematic view of portion B of fig. 6;

fig. 8 is a schematic cross-sectional view of a flexible screen terminal provided by an embodiment of the present disclosure in a folded state (different from the position of fig. 5);

FIG. 9 is a schematic cross-sectional view of a flexible screen terminal provided by an embodiment of the present disclosure in an unfolded state (different from the position of FIG. 6);

fig. 10 is an exploded schematic view of a partial zero structure of a flexible screen folding mechanism of a flexible screen terminal provided by an embodiment of the present disclosure;

FIG. 11 is an enlarged partial schematic view of FIG. 10;

fig. 12 is an exploded view of a partial zero configuration of a flexible screen folding mechanism of a flexible screen terminal provided by an embodiment of the present disclosure, wherein a support assembly is not shown.

Description of the reference numerals

1000-flexible screen terminal; 100-a flexible screen folding mechanism; 10-a support assembly; 11-a first pallet; 111-a first movable spindle; 112-a first movable spindle; 12-a middle pallet; 13-a second pallet; 131-a second movable rotating shaft; 132-a second movable spindle; 21-a first gear; 22-a second gear; 23-a rack; 30-a cam assembly; 31-a fixing member; 311-limiting surface; 32-moving parts; 33-an elastic member; 41-a first sliding bracket; 411-first sliding groove; 412-a first flat hole; 413-a first sliding part; 414-a receiving cavity; 42-a second sliding bracket; 421-a second sliding groove; 51-a first flat shaft; 52-a second flat shaft; 61-a first screen stretching assembly; 611-a first taut screen fixing plate; 6111-first slide; 6112-first limit hole; 612-a first screen-tensioning spring; 62-a second screen stretching assembly; 621-a second screen stretching fixing plate; 6211-a second slide; 6212-a second stop hole; 622-second screen-stretching spring; 71-a first limit pin; 72-a second limit pin; 200-a flexible screen; 300-a first terminal body; 310-a first support plate; 400-a second terminal body; 410-a second support plate; 500-an intermediate body; 510-a first limit ramp; 520-a second limit ramp; 530-horizontal limit ramps.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, terms used herein, such as "upper, lower, left, right" and "inner, outer" are generally defined as referring to the inner and outer of the relevant parts, unless otherwise specified. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present disclosure, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present disclosure can be understood in specific instances by those of ordinary skill in the art.

As shown in fig. 1 and 2, the present disclosure provides a flexible screen terminal 1000 including a flexible screen 200 (flexible screen assembly), a first terminal body 300, a second terminal body 400, an intermediate body 500, and a flexible screen folding mechanism 100 below. The first and second terminal bodies 300 and 400 are rotatably connected to the middle body 500 by the flexible screen folding mechanism 100 to enable the flexible screen terminal 1000 to be unfolded and folded.

In the process of unfolding or folding the flexible screen terminal 1000, the flexible screen folding mechanism 100 can better support the flexible screen 200, reduce or avoid the risk of dragging and wrinkling of the flexible screen 200, and is beneficial to improving the working reliability and service life of the flexible screen 200. Moreover, it is also advantageous to reduce the space occupied by the flexible screen folding mechanism 100 in the flexible screen terminal 1000.

As shown in fig. 3 to 12, the flexible screen folding mechanism 100 provided by the present disclosure includes a support assembly 10, and the support assembly 10 is used for supporting a flexible screen 200 of a flexible screen terminal 1000 (such as a mobile phone, a tablet computer, etc.). The support assembly 10 includes a first support plate 11, an intermediate support plate 12 and a second support plate 13, all of which are used for supporting the flexible screen 200, wherein the intermediate support plate 12 is configured to be movable relative to the first support plate 11 and the second support plate 13, so that during the folding process of the flexible screen 200, the intermediate support plate 12 can move towards a first direction and together with the first support plate 11 and the second support plate 13 enclose a containing groove to provide a folding space for the flexible screen 200, and during the unfolding process of the flexible screen 200, the intermediate support plate 12 can move towards a direction opposite to the first direction and together with the first support plate 11 and the second support plate 13 support the flexible screen 200. For example, during the unfolding of the flexible screen 200, the intermediate support plate 12 may be moved so that its inner plane is flush with the inner plane of the first support plate 11 and the inner plane of the second support plate 13 to support the flexible screen 200.

The "inner plane" here refers to the side of the first blade 11, the intermediate blade 12 and the second blade 13 facing and supporting the flexible screen 200. The "first direction" may refer to a direction perpendicular to the inner plane of the first blade 11, the intermediate blade 12 and the third blade 13 when the flexible screen 200 is in the flattened position, the intermediate blade 12 moving towards the first direction, i.e. the intermediate blade 12 moving inwards.

In the flexible screen folding mechanism 100 provided by the present disclosure, left and right portions of the flexible screen 200 may be supported by support structures on the first and second terminal bodies 300 and 400, respectively. While the middle portion (i.e., the bent portion) of the flexible screen 200 may be supported by the first blade 11, the middle blade 12, and the second blade 13. For example, referring to fig. 6, during deployment of the flexible screen terminal 1000, the intermediate support plate 12 moves in a first direction (i.e., moves inward to move upward) such that the intermediate support plate 12, the first support plate 11, and the second support plate 13 collectively support the flexible screen 200. During the folding of the flexible screen terminal 1000, the intermediate support plate 12 moves in a direction opposite to the first direction (moves outward to sink) with respect to the first support plate 11 and the second support plate 13, and supports the flexible screen 200 at all times during the sinking. So, can guarantee that flexible screen 200 all obtains good support at the expansion of flexible screen terminal 1000, folding and in-process, can bear and press and indeformable to can reduce or avoid the flexible screen to appear dragging and the risk of fold, be favorable to improving the life of flexible screen 200 and improve user experience.

Moreover, because the intermediate supporting plate 12 sinks, a sufficient avoiding space can be provided for the bending part of the flexible screen 200, the bending radius of the flexible screen 200 is ensured to meet the process requirement, and the generation of creases is reduced. Moreover, since the intermediate space is more utilized to make room for folding the flexible screen 200, the position of the bending point of the flexible screen 200 is moved down, and the width of the bent portion of the flexible screen 200 can be reduced. Therefore, be favorable to reducing the width of first layer board 11 and second layer board 13 to the reduction occupies the space of flexible screen terminal 1000, and it leaves sufficient space to lay with the battery for flexible screen terminal 1000 circuit board arranges, thereby has practiced thrift the inside valuable space of flexible screen terminal 1000, does benefit to the purpose that realizes the frivolousization of flexible screen terminal 1000 and promote battery duration.

So, through above-mentioned technical scheme, this flexible screen folding mechanism 100 does benefit to and reduces or avoids the flexible screen 200 of flexible screen terminal 1000 to appear tearing and the risk of fold, does benefit to the outward appearance integrality of guaranteeing flexible screen terminal 1000 at the optional state, moreover, still is favorable to reducing the space of the flexible screen terminal 1000 both sides (if control the side, first layer board 11 and second layer board 13 are located the left and right sides of middle layer board 12 respectively this moment) that flexible screen folding mechanism 100 took.

In the present disclosure, the intermediate pallet 12 may be relatively moved with respect to the first and second pallets 11, 13 in any suitable manner. As shown in fig. 5 to 7, the flexible screen folding mechanism 100 further includes a first gear 21 and a rack 23, the first gear 21 is configured to be rotatably mounted on the middle body 500 of the flexible screen terminal 1000, the middle support plate 12 is fixedly connected to the rack 23, for example, as shown in fig. 7, fixedly connected to an upper end of the rack 23, and the first gear 21 is engaged with the rack 23 to drive the rack 23 to move inward or outward when the first gear 21 rotates, so as to drive the middle support plate 12 to move toward a first direction or a direction opposite to the first direction, that is, to move inward or outward.

The rack 23 is in gear transmission, so that the structure is simple and the transmission is reliable. In the process of unfolding the flexible screen terminal 1000, the rack 23 is driven to move inwards (move upwards) by rotating the first gear 21 in a forward (or reverse) rotation manner, so as to drive the intermediate support plate 12 to move inwards. In the process of folding the flexible screen terminal 1000, the rack 23 is driven to move outwards (move downwards) by rotating the first gear 21 in a reverse rotation (or forward rotation) manner, so as to drive the middle supporting plate 12 to move downwards and outwards.

Wherein, optionally, as shown in fig. 7, the rack 23 is a double-sided rack 23, the flexible screen folding mechanism 100 further includes a second gear 22, the second gear 22 is configured to be rotatably mounted on the middle body 500 of the flexible screen terminal 1000, and the double-sided rack 23 is movably clamped between the first gear 21 and the second gear 22 and is respectively engaged with the first gear 21 and the second gear 22. So configured, when one of the first gear 21 and the second gear 22 rotates, the other can follow the synchronous rotation. In the scheme that the first gear 21 is in transmission connection with the first terminal body 300 of the flexible screen terminal 1000 and the second gear 22 is in transmission connection with the second terminal body 400 of the flexible screen terminal 1000 (see below), the first terminal body 300 and the second terminal body 400 of the flexible screen terminal 1000 can be synchronously unfolded or folded, and a better hand feeling experience can be provided for a user.

In the present embodiment, as shown in fig. 7, the rack and pinion mechanism is disposed under the flexible screen 200, and is not exposed to the outside when the flexible screen terminal 1000 is unfolded and folded. The flexible screen folding mechanism 100 is installed inside the first terminal body 300, the second terminal body 400, and the middle body 500 of the flexible screen terminal 1000, which is advantageous for preventing foreign substances from entering the flexible screen terminal 1000.

As shown in fig. 8 and 9, in an embodiment of the present disclosure, the flexible screen folding mechanism 100 may further include a cam assembly 30, the cam assembly 30 may include a fixed member 31, a movable member 32, and an elastic member 33 (e.g., a compression spring), the fixed member 31 is configured to be fixed to the intermediate body 500, the movable member 32 is in abutting engagement with the fixed member 31, the elastic member 33 is configured to provide an elastic force for the movable member 32 to abut against the fixed member 31, and when the flexible screen 200 is in the unfolded position, the abutting portion of the movable member 32 is limited on a limiting surface 311 of the fixed member 31, so that the flexible screen 200 can be maintained in the unfolded position.

In this embodiment, under the action of the elastic element 33, the movable element 32 always abuts against the fixed element 31, so that in the process of unfolding or folding the flexible screen terminal 1000, under the action of the elastic element 33, an operation feeling can be provided for a user. Moreover, when the flexible screen terminal 1000 is in the extended position, for example, in the flat position shown in fig. 9, the fixed member 31 of the cam assembly is engaged with the movable member 32, and the abutting portion of the fixed member 31 is limited on the limiting surface 311 of the fixed member 31, so that the flexible screen 200 can be kept in the flat position, that is, at this time, the elastic member 33 is compressed and engaged with the movable member 32 and the fixed member 31, so as to play a role in locking the flexible screen terminal 1000, so that the flexible screen terminal 1000 is kept in the extended position, and is not prone to shake.

As shown in fig. 3, 4 and 10-12, in one embodiment of the present disclosure, the flexible screen folding mechanism 100 may further include a first sliding bracket 41 and a first flat shaft 51. The first sliding bracket 41 is provided with a first sliding groove 411 and a first flat hole 412, the first flat shaft 51 is arranged on the middle body 500 in a penetrating manner, the first gear 21 is sleeved at the inner end of the first flat shaft 51, and the outer end of the first flat shaft 51 is fixed in the first flat hole 412. The end of the first supporting plate 11 is provided with a first movable rotating shaft 111 and a first fixed rotating shaft 112 in the width direction of the end, the first fixed rotating shaft 112 is used for being rotatably connected to the middle body 500, the first movable rotating shaft 111 moves in the first sliding groove 411 during the rotation of the first supporting plate 11 around the first fixed rotating shaft 112, the first sliding support 41 is in transmission connection with the first terminal body 300 of the flexible screen terminal 1000, so that the first sliding support 41 drives the first gear 21 and the first supporting plate 11 to rotate during the folding process of the first terminal body 300 of the flexible screen terminal 1000.

The flexible screen folding mechanism 100 further includes a second sliding support 42 and a second flat shaft 52, the second sliding support 42 is provided with a second sliding groove 421 and a second flat hole, the second flat shaft 52 is disposed on the middle body 500 in a penetrating manner, the second gear 22 is sleeved on an inner end of the second flat shaft 52, an outer end of the second flat shaft 52 is fixed to the second flat hole (not shown), an end portion of the second supporting plate 13 is respectively provided with a second movable rotating shaft 131 and a second fixed rotating shaft 132 in a width direction of the second supporting plate, the second fixed rotating shaft 132 is used for being rotatably connected to the middle body 500, the second movable rotating shaft 131 moves in the second sliding groove 421 in a rotating process of the second supporting plate 13 around the second fixed rotating shaft 132, the second sliding support 42 is in transmission connection with the second terminal body 400 of the flexible screen terminal 1000, so that the second gear 22 and the second supporting plate 12 are rotated by the second sliding bracket 42 during the folding of the second terminal body 400 of the flexible screen terminal 1000.

In this embodiment, in the process of folding or unfolding the flexible screen terminal 1000, the first sliding bracket 41 is driven to rotate by the first terminal body 300, so that the first sliding bracket 41 drives the first flat shaft 51 to rotate around the middle body 500, and drives the first gear 21 mounted on the first flat shaft 51 to rotate, thereby driving the rack 23 to move inwards or outwards, and further driving the middle support plate 12 to move inwards or outwards. Meanwhile, in the width direction of the first support plate 11, the first fixed rotating shaft 112 located at a side of the first support plate 11 close to the second support plate 13 rotates around the middle body 500, and the first movable rotating shaft 111 located at a side of the first support plate 11 far from the second support plate 13 moves in the first sliding groove 411.

Similarly, the second sliding bracket 42 is driven to rotate by the second terminal body 400, so that the second sliding bracket 42 drives the second flat shaft 52 to rotate around the middle body 500, and drives the second gear 22 mounted on the second flat shaft 52 to rotate, and the second gear 22 and the first gear 21 rotate synchronously to drive the rack 23 to move inwards or outwards, thereby driving the middle supporting plate 12 to move inwards or outwards. Meanwhile, in the width direction of the second supporting plate 13, the second fixed rotating shaft 132 located at one side of the second supporting plate 13 close to the first supporting plate 11 rotates around the middle body 500, and the second movable rotating shaft 131 located at one side of the second supporting plate 13 far from the first supporting plate 11 moves in the second sliding groove 511 until the first supporting plate 11 and the second supporting plate 13 rotate to a preset position. E.g., in the extended position, and at the same level as the intermediate pallet 12, the inner surfaces of the three pallets together form a support plane for the flexible screen 200, thereby enabling the flexible screen terminal 1000 to be extended or folded.

As shown in fig. 3, 4 and 10 to 12, in an embodiment of the present disclosure, the flexible screen folding mechanism 100 may further include a first screen stretching assembly 61, the first screen stretching assembly 61 includes a first screen stretching fixing plate 611 and a first screen stretching spring 612, the first screen stretching fixing plate 611 is used to be connected to the first terminal body 300 of the flexible screen terminal 1000, for example, fixed by a fastening screw, a first sliding rail 6111 with an open end is disposed on the first screen stretching fixing plate 611, a first sliding portion 413 is disposed on the first sliding support 41, one end of the first screen stretching spring 612 is connected to a side wall at the other end of the first sliding rail 6111, and the other end of the first screen stretching spring 612 abuts against the first sliding portion 413. During the folding process of the flexible screen terminal 1000, the first sliding portion 413 is slidably accommodated in the first sliding way 6111 along the extending direction of the first sliding way 6111. And/or, the flexible screen folding mechanism 100 further includes a second screen stretching assembly 62, the second screen stretching assembly 62 includes a second screen stretching fixing plate 621 and a second screen stretching spring 622, the second screen stretching fixing plate 621 is used for being connected to the second terminal body 400 of the flexible screen terminal 1000, for example, fixed by a fastening screw, the second screen stretching fixing plate 621 is provided with a second sliding rail 6211 with an open end, the second sliding support 42 is provided with a second sliding portion (not shown), one end of the second screen stretching spring 622 is connected to a side wall at the other end of the second sliding rail 6211, the other end of the second screen stretching spring 622 abuts against the second sliding portion, and in the folding process of the flexible screen terminal 1000, the second sliding portion can be slidably accommodated in the second sliding rail 6211 along the extending direction of the second sliding rail 6211.

In the present embodiment, during the process of folding or unfolding the flexible screen terminal 1000, for example, when the first terminal body 300 is rotated, the first sliding portion 413 can slide in the first slide 6111 for a short distance, so that the first sliding support 41 rotates around the first flat shaft 51. Likewise, the second slider portion simultaneously slides a short distance in the second slideway 6211 so that the second sliding bracket 42 rotates about the second flat shaft 52. Under the effect of the first and second screen stretching springs 612 and 622, the flexible screen 200 is always kept tense, and the indentation of the surface of the flexible screen 200 on the first terminal body 300, the second terminal body 400 and the flexible screen folding mechanism 100 is avoided, so that better use experience can be provided for a user.

Optionally, as shown in fig. 4, 11 and 12, the flexible screen folding mechanism 100 further includes a first limit pin 71 disposed on the first sliding portion 413, the first screen stretching fixing plate 611 is provided with a first limit hole 6112, when the flexible screen 200 is in the extended position, an end of the first limit pin 71 is limited in the first limit hole 6112 to limit a sliding stroke of the first sliding portion 43 in the first sliding way 6111, and/or the flexible screen folding mechanism 100 further includes a second limit pin 72 disposed on the second sliding portion 423, the second screen stretching fixing plate 621 is provided with a second limit hole 6212, when the flexible screen 200 is in the extended position, an end of the second limit pin 72 is limited in the second limit hole 6212 to limit a sliding stroke of the second sliding portion 53 in the second sliding way 6211.

It will be appreciated that in the present disclosure, the cam assembly 30 may be disposed on the sliding bracket (including the first sliding bracket 41 and the second sliding bracket 42), on other components, such as the flat screen assembly, or on a separate component, which is not limited by the present disclosure. Alternatively, as shown in fig. 8 and 9, the cam assembly 30 includes at least two sets, wherein one set of the cam assembly 30 is used to enable the first terminal body 300 of the flexible screen terminal 1000 to be maintained in the deployed position, and the other set of the cam assembly 30 is used to maintain the second terminal body 400 of the flexible screen terminal 1000 in the deployed position. One set of the movable member 32 and the resilient member 33 of the cam member may be mounted to the first sliding bracket 41, and the other set of the movable member 32 and the resilient member 33 of the cam member may be mounted to the second sliding bracket 42.

Specifically, as shown in fig. 8, 9, 11 and 12, the first sliding support 41 and the second sliding support 42 are both provided with an accommodating cavity 414 with one open end, the accommodating cavity 414 is used for accommodating the corresponding elastic element 33 and the movable element 32 and guiding the movable element 32, one end of the elastic element 33 is connected to the inner wall of the accommodating cavity 414, the other end of the elastic element 33 is connected to the movable element 32, and the movable element 32 is slidably disposed in the accommodating cavity 44. By installing the elastic element 33 in the accommodating cavity 414 and guiding the movable element 32, the movable element 32 can be ensured to move in a preset direction in the process of the unfolding position and the folding position of the flexible screen 200, so that the movable element 32 can reliably support the fixed element 31, and the flexible screen terminal 1000 can be kept in the unfolding position.

In addition, in the present embodiment, the cam assembly 30 is disposed on the sliding bracket (including the first sliding bracket 41 and the second sliding bracket 42), which is beneficial to make the structure of the flexible screen folding mechanism 100 more compact, reduce the space occupied by the flexible screen terminal 1000, and also beneficial to light weight of the flexible screen terminal 1000.

As shown in fig. 8, when the flexible screen terminal 1000 is in the folded state, the upper end of the movable member 32 is connected to the corresponding sliding bracket (the first sliding bracket 41 or the second sliding bracket 51) through the elastic member 33, and the movable member 32 is located above the fixed member 31. During deployment of the flexible screen terminal 1000, the mover 32 in the cam assembly 30 is rotated 90 about the axis of the corresponding flat shaft and is positioned as shown in fig. 9. At this time, the movable member 32 is located below the surface of the fixed member 31, and the elastic member 33 is compressed to maintain the flexible screen terminal 1000 in a flat and unfolded state, so that the flexible screen terminal 1000 is not easily shaken.

In the present disclosure, the first terminal body 300 is coupled to the first blade 11, and the first blade 11 is rotatably coupled to the intermediate body 500. The second terminal body 400 is coupled to the second supporting plate 13, and the second supporting plate 13 is rotatably coupled to the intermediate body 500. The flexible screens 200 are supported on the first terminal body 300, the second terminal body 400, the middle body 500, and the flexible screen folding mechanism 100, respectively.

Optionally, magnets may be disposed on the first and second terminal bodies 300 and 400, so that when the flexible screen terminal 1000 is in a folded state, the first and second terminal bodies 300 and 400 are attached by the magnets. In this way, the first terminal body 300 and the second terminal body 400 can be prevented from being unintentionally unfolded.

In order to limit the unfolding angle of the flexible screen terminal 1000, as shown in fig. 6 and 7, in an embodiment of the present disclosure, a first limiting inclined surface 510, a second limiting inclined surface 520, and a horizontal limiting surface 530 are disposed on the middle body 500, and the first limiting inclined surface 510, the second limiting inclined surface 520, and the horizontal limiting surface 530 are configured to be in limiting cooperation with the flexible screen folding mechanism 100, so as to prevent the folded flexible screen terminal 1000 from being unfolded toward the unfolding position after being in the maximum unfolding position.

The first limiting inclined surface 510 may be matched with a third limiting inclined surface (not shown) on the first gear 21, the second limiting inclined surface 520 may be matched with a fourth limiting inclined surface on the second gear 22, and the horizontal lower limiting surface 311 may be matched with the top surface of the rack 23, so as to ensure that the angle does not exceed a preset angle (e.g., 180 °) when the device is completely unfolded, so that the flexible screen terminal 1000 is in a flat plate shape, and user experience is improved.

As shown in fig. 5, in an embodiment of the present disclosure, the flexible screen terminal 1000 further includes a first support plate 310 and a second support plate 410, both for supporting the flexible screen 200, the first support plate 310 is disposed on a side of the first terminal body 300 facing the flexible screen 200, the second support plate 410 is disposed on a side of the second terminal body 400 facing the flexible screen 200, and the flexible screen 200 is bonded to the middle support plate 12, the first support plate 310 and the second support plate 410, respectively, for example, the flexible screen 200 is partially bonded to the middle support plate 12, the first support plate 310 and the second support plate 410 by a back adhesive. The left and right portions of the flexible screen 200 may be respectively attached to the first support plate 310 and the second support plate 410, and the middle portion may be supported by the flexible screen folding mechanism 100, specifically, the first support plate 11, the second support plate 13, and the middle support plate 12.

In this way, the first support plate 310, the second support plate 410, the first supporting plate 11, the second supporting plate 13 and the middle supporting plate 12 cooperate together, so that the full screen support of the flexible screen 200 can be realized. And, because of the bonding, it is beneficial to keep the flexible screen 200 flat and positioned.

As shown in fig. 5 and 6, when the flexible screen terminal 1000 is in the deployed position, the first support plate 310, the second support plate 410, the first support plate 11, the second support plate 13, and the intermediate support plate 12 are substantially horizontal and collectively support the flexible screen 200. When equipment is in folded state, the left side part and the right side part of flexible screen 200 laminate with first backup pad 310 and second backup pad 410 respectively, and the most bending folding of middle part is folded into precious bottle form and is arranged in the triangle-shaped space of dodging that three layer boards formed, and the folding fillet of flexible screen 200 can be greater than 3 mm.

As shown in fig. 3, the first sliding brackets 41 are two, and the two first sliding brackets 41 are disposed at intervals at both ends in a direction perpendicular to the folding direction of the flexible screen terminal 1000. Similarly, the number of the second sliding bracket 42, the first gear 21, the second gear 22, the rack 23, the cam assembly 30, the first screen stretching assembly 61 and the second screen stretching assembly 62 can also be two, and the arrangement direction is similar to that of the two first sliding brackets 41.

It should be noted that, in the present disclosure, besides the above-described mobile phone and tablet computer, the terminal device may be any device with a display function, such as an in-vehicle device, a wearable device, and the like, and the device has the flexible screen 200.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. A flexible screen folding mechanism comprises a supporting component (10) and a transmission component, wherein the supporting component (10) is used for supporting a flexible screen (200) of a flexible screen terminal (1000), and the transmission component is respectively connected with the supporting component (10) and a middle body (500) of the flexible screen terminal (1000), and is characterized in that the supporting component (10) comprises a first supporting plate (11), a middle supporting plate (12) and a second supporting plate (13) which are used for supporting the flexible screen (200);

the transmission assembly comprises a first gear (21) and a rack (23), the first gear (21) is rotatably mounted on the middle body (500) of the flexible screen terminal (1000), and the middle supporting plate (12) is fixedly connected to the rack (23);

the first gear (21) is used for being meshed with the rack (23) so as to drive the rack (23) to move towards a first direction or a direction opposite to the first direction when the first gear (21) rotates, so that the intermediate support plate (12) can move towards the first direction and together with the first support plate (11) and the second support plate (13) enclose an accommodating groove to provide a folding space for the flexible screen (200) in the folding process of the flexible screen (200), and the intermediate support plate (12) can move towards the direction opposite to the first direction and together with the first support plate (11) and the second support plate (13) support the flexible screen (200) in the unfolding process of the flexible screen (200).

2. A flexible screen folding mechanism according to claim 1 characterized in that the rack (23) is a double sided rack, the flexible screen folding mechanism (100) further comprising a second gear (22), the second gear (22) being rotatably mounted on the intermediate body (500), the double sided rack being movably clamped between the first gear (21) and the second gear (22) and being in engagement with the first gear (21) and the second gear (22), respectively.

3. The flexible screen folding mechanism according to claim 2, wherein the flexible screen folding mechanism (100) further comprises a first sliding support (41) and a first flat shaft (51), the first sliding support (41) is provided with a first sliding groove (411) and a first flat hole (412), the first flat shaft (51) is arranged on the middle body (500) in a penetrating manner, the first gear (21) is sleeved at the inner end of the first flat shaft (51), the outer end of the first flat shaft (51) is fixed at the first flat hole (412), the end of the first supporting plate (11) is provided with a first movable rotating shaft (111) and a first fixed rotating shaft (112) in the width direction of the end of the first supporting plate (11), the first fixed rotating shaft (112) is used for being rotatably connected to the middle body (500), and the first movable rotating shaft (111) is used for rotating the first sliding groove (111) in the process that the first supporting plate (11) rotates around the first fixed rotating shaft (112) 411) Moving inwards, wherein the first sliding support (41) is in transmission connection with a first terminal body (300) of the flexible screen terminal (1000) so as to drive a first gear (21) and a first supporting plate (11) to rotate through the first sliding support (41) in the folding process of the first terminal body (300), and/or,

the flexible screen folding mechanism (100) further comprises a second sliding support (42) and a second flat shaft (52), a second sliding groove (421) and a second flat hole are formed in the second sliding support (42), the second flat shaft (52) penetrates through the middle body (500), a second gear (22) is sleeved at the inner end of the second flat shaft (52), the outer end of the second flat shaft (52) is fixed in the second flat hole (422), a second movable rotating shaft (131) and a second fixed rotating shaft (132) are respectively arranged at the end part of the second supporting plate (13) in the width direction of the second supporting plate, the second fixed rotating shaft (132) is rotatably connected to the middle body (500), the second movable rotating shaft (131) is used for moving in the second sliding groove (421) in the rotating process of the second supporting plate (13) around the second fixed rotating shaft (132), the second sliding support (42) is in transmission connection with a second terminal body (400) of the flexible screen terminal (1000), so that a second gear (22) and the second supporting plate (13) are driven to rotate through the second sliding support (42) in the folding process of the second terminal body (400).

4. The flexible screen folding mechanism according to claim 3, wherein the flexible screen folding mechanism (100) further comprises a first screen stretching assembly (61), the first screen stretching assembly (61) comprises a first screen stretching fixing plate (611) and a first screen stretching spring (612), the first screen stretching fixing plate (611) is used for being connected with the first terminal body (300) of the flexible screen terminal (1000), a first sliding rail (6111) with an open end is arranged on the first screen stretching fixing plate (611), a first sliding part (413) is arranged on the first sliding support (41), one end of the first screen stretching spring (612) is connected to a side wall at the other end of the first sliding rail (6111), the other end of the first screen stretching spring (612) abuts against the first sliding part (413), and during folding of the first terminal body (300), the first sliding part (413) is slidably accommodated in the first slideway (6111) along the extension direction of the first slideway (6111), and/or,

the flexible screen folding mechanism (100) further comprises a second screen stretching component (62), the second screen stretching component (62) comprises a second screen stretching fixing plate (621) and a second screen stretching spring (622), the second screen stretching fixing plate (621) is used for being connected with the second terminal body (400) of the flexible screen terminal (1000), and a second slideway (6211) with an opening at one end is arranged on the second screen stretching fixing plate (621), a second sliding part is arranged on the second sliding support (42), one end of the second screen stretching spring (622) is connected with the side wall at the other end of the second slideway (6211), the other end of the second screen stretching spring (622) is propped against the second sliding part, during the folding of the second terminal body (400), the second sliding portion is slidably receivable in the second slideway (6211) along the direction of extension of the second slideway (6211).

5. The flexible screen folding mechanism according to claim 4, characterized in that the flexible screen folding mechanism (100) further comprises a first limit pin (71) disposed on the first sliding portion (413), the first screen-stretching fixing plate (611) is provided with a first limit hole (6112), when the flexible screen (200) is in the unfolded position, an end of the first limit pin (71) is limited in the first limit hole (6112) to limit a sliding stroke of the first sliding portion (413) in the first sliding way (6111), and/or,

the flexible screen folding mechanism (100) further comprises a second limiting pin (72) arranged on the second sliding portion, a second position hole (6212) is formed in the second screen stretching fixing plate (621), and when the flexible screen (200) is located at the unfolding position, the end portion of the second limiting pin (72) is limited in the second limiting hole (6212) so as to limit the sliding stroke of the second sliding portion in the second sliding way (6211).

6. The flexible screen folding mechanism according to claim 3, characterized in that the flexible screen folding mechanism (100) further comprises at least two sets of cam assemblies (30), each set of cam assemblies (30) comprises a fixed member (31), a movable member (32) and an elastic member (33), the movable member (32) is in abutting engagement with the fixed member (31), and the elastic member (33) is used for providing elastic force for the movable member (32) to abut against the fixed member (31);

the fixed piece (31) of one set of cam component (30) is fixed to the middle body (500), and two ends of the elastic piece (33) are respectively connected with the first sliding support (41) and the movable piece (32);

the fixed part (31) of the other set of cam component (30) is fixed to the middle body (500), and two ends of the elastic component (33) are respectively connected with the second sliding bracket (42) and the movable component (32);

when the flexible screen terminal (1000) is in the unfolded position, the abutting part of each movable piece (32) is limited on the corresponding limiting surface (311) of the fixed piece (31), so that the first terminal body (300) of the flexible screen terminal (1000) and the second terminal body (400) of the flexible screen terminal (1000) can be kept in the unfolded position.

7. A flexible screen folding mechanism according to claim 6, characterized in that the first sliding support (41) and the second sliding support (42) are provided with an accommodating cavity (414) with an open end, the accommodating cavity (414) is used for accommodating the corresponding elastic member (33) and the movable member (32) and guiding the movable member (32), one end of the elastic member (33) is connected to the inner wall of the accommodating cavity (414), the other end of the elastic member (33) is connected to the movable member (32), and the movable member (32) is slidably arranged in the accommodating cavity (414).

8. A flexible screen terminal comprising a flexible screen (200), a first terminal body (300), a second terminal body (400) and an intermediate body (500), characterized in that it further comprises a flexible screen folding mechanism (100) according to any one of claims 1 to 7, said first terminal body (300) being connected to said first carrier (11), said first carrier (11) being rotatably connected to said intermediate body (500);

the second terminal body (400) is connected with the second supporting plate (13), the second supporting plate (13) is rotatably connected with the middle body (500), and the flexible screen (200) is supported on the first terminal body (300), the second terminal body (400), the middle body (500) and the flexible screen folding mechanism (100).

9. The flexible screen terminal according to claim 8, wherein the middle body (500) is provided with a first limiting inclined surface (510), a second limiting inclined surface (520) and a horizontal limiting inclined surface (530), and the first limiting inclined surface (510), the second limiting inclined surface (520) and the horizontal limiting inclined surface (530) are used for limiting and matching with the flexible screen folding mechanism (100) so as to prevent the flexible screen terminal (1000) from being unfolded towards the unfolding direction after being in the unfolding position.

10. The flexible screen terminal of claim 8 or 9, wherein the flexible screen terminal (1000) further comprises a first support plate (310) and a second support plate (410) both for supporting a flexible screen (200), the first support plate (310) being disposed at a side of the first terminal body (300) facing the flexible screen (200), the second support plate (410) being disposed at a side of the second terminal body (400) facing the flexible screen (200), the flexible screen (200) being adhered to the first support plate (310), the second support plate (410) and the intermediate support plate (12), respectively.

Images