CN114120831B

CN114120831B - Folding mechanism and electronic equipment of flexible screen

Info

Publication number: CN114120831B
Application number: CN202111386411.5A
Authority: CN
Inventors: 王睿; 崔玉青; 艾小东; 苗笑楠; 饶娉
Original assignee: Hefei Visionox Technology Co Ltd
Current assignee: Hefei Visionox Technology Co Ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2023-06-13
Anticipated expiration: 2041-11-22
Also published as: CN114120831A

Abstract

The invention discloses a folding mechanism of a flexible screen and electronic equipment, and relates to the technical field of display. The folding mechanism of the flexible screen comprises a base and two supporting components. The base comprises a bottom plate and a guide piece, two ends of the guide piece are respectively and fixedly connected to two ends of the bottom plate, a limiting part is arranged at the top of the guide piece, through grooves are formed in two ends of the limiting part, and the through grooves extend to two ends of the guide piece respectively; the two supporting components are respectively located at two ends of the limiting part, each supporting component comprises a supporting piece and a telescopic piece, one end of each telescopic piece is hinged to the bottom plate, the other end of each telescopic piece penetrates through the through groove and is fixedly connected with the corresponding supporting piece, the supporting pieces are connected to two sides of the through groove in a sliding mode, and when the two supporting pieces are turned to the second position from the first position, the telescopic pieces stretch. The folding mechanism of the flexible screen can stretch the flexible screen when the flexible screen is unfolded, and wrinkles or bending marks generated at the boundary are eliminated, so that the visual sense of a user is not influenced.

Description

Folding mechanism and electronic equipment of flexible screen

Technical Field

The invention relates to the technical field of display, in particular to a folding mechanism of a flexible screen and electronic equipment.

Background

Along with the development of folding screens, more and more foldable display devices are introduced, the size of a used screen can be changed by using the folding screen, the display area can be expanded by opening the folding screen when the folding screen is used, the visual sense of a large screen is given to a user, and the folding screen is folded when the folding screen is not used, so that the folding screen is easy to carry about by the user and has high convenience.

However, in the use process of the traditional folding screen, folds or bending marks are easily generated at the dividing positions, particularly for large-size screens, the middle buckling folds can greatly influence the visual sense of a user, the visual effect is reduced, and the service life of the screen is short.

Aiming at the problems, a folding mechanism of a flexible screen and electronic equipment are required to be developed so as to solve the problem that the user experience is affected due to the fact that folds or bending marks are generated at the boundary of the flexible screen.

Disclosure of Invention

The invention aims to provide a folding mechanism of a flexible screen, which can stretch the flexible screen when the flexible screen is unfolded, and eliminate folds or bending marks generated at the boundary positions, so that the visual sense of a user is not influenced.

To achieve the purpose, the invention adopts the following technical scheme:

a folding mechanism for a flexible screen, comprising:

the base comprises a bottom plate and a guide piece, wherein a first end and a second end of the guide piece are respectively and fixedly connected to two ends of the bottom plate, a limiting part is arranged at the top of the guide piece, through grooves are formed in two ends of the guide piece, which are positioned at the limiting part, and the through grooves extend to the first end and the second end of the guide piece respectively;

the two supporting components are respectively located at two ends of the limiting part, each supporting component comprises a supporting piece and a telescopic piece, one end of each telescopic piece is hinged to the bottom plate, the other end of each telescopic piece penetrates through the corresponding through groove and is fixedly connected with each supporting piece, each supporting piece is connected to two sides of the corresponding through groove in a sliding mode, when the two supporting pieces are in opposite sliding mode and are in contact with the limiting part, the two supporting pieces are located at first positions, when the two supporting pieces are in opposite sliding mode to the first end and the second end of each guiding piece, the supporting pieces are located at second positions, and when the supporting pieces are turned to the second positions from the first positions, the telescopic pieces stretch.

Preferably, the top surface of the guide member is an arc surface.

Preferably, the telescopic device further comprises a sliding block, wherein the sliding block is arranged at one end, connected with the telescopic piece, of the supporting piece, and the supporting piece is in sliding connection with two sides of the through groove through the sliding block.

Preferably, the radian of the surface of the sliding block, which is contacted with the two sides of the through groove, is equal to the radian of the top surface of the guide piece.

Preferably, the telescopic member is an elastic member.

Preferably, the elastic coefficient of the elastic member is adjustable.

Preferably, the first end and the second end of the guide piece are both provided with clamping surfaces, and the included angle between the clamping surfaces and the bottom plate is a right angle.

Preferably, the guide piece is located at two sides of the through groove and is respectively provided with a baffle, and two sides of the support piece are respectively in sliding abutting connection with the two baffles.

Preferably, a sliding part is convexly arranged at one end of the supporting piece, which is connected with the telescopic piece, a sliding groove is concavely arranged at the connecting position of the baffle plate and the guiding piece, and the sliding part is slidably arranged in the sliding groove.

An electronic device comprising two of said flexible screen folding mechanisms, further comprising:

the folding mechanisms of the two flexible screens are arranged on the back surface of the equipment main body, and the supporting piece is fixedly connected with the equipment main body;

the flexible screen is arranged on the front face of the equipment main body and is fixedly connected with the equipment main body.

The invention has the beneficial effects that:

the invention provides a folding mechanism of a flexible screen and electronic equipment. In the folding mechanism, the bottom plate is used for fixing the guide piece and connecting the support component. The two supporting pieces are used for fixing the two ends of the flexible screen, and the flexible screen is folded at the first position when the two supporting pieces slide in opposite directions and are abutted to the limiting part. The two support members are in the second position when slid back to the first and second ends of the guide member, whereupon the flexible screen expands into a flat surface. The spacing portion can restrict the distance when two support piece fold flexible screen, prevents that the too close extrusion flexible screen of distance.

When the support piece turns to the second position from the first position along the through groove, the telescopic rod stretches, so that the flexible screen is pulled by the support piece, even if the boundary of the flexible screen has generated folds or bending marks, the two support pieces can stretch the flexible screen, the folds or bending marks generated at the boundary are eliminated, and the visual sense of a user is not influenced.

Drawings

Fig. 1 is a perspective view of an electronic device provided by the present invention when unfolded;

FIG. 2 is a schematic view of a folding mechanism of the flexible screen provided by the invention with one baffle removed;

FIG. 3 is an exploded view of the folding mechanism of the flexible screen provided by the present invention;

FIG. 4 is a schematic view of the structure of the support of the folding mechanism of the flexible screen provided by the invention in a first position;

FIG. 5 is a cross-sectional view taken at A-A of FIG. 4 in accordance with the present invention;

FIG. 6 is a schematic view of the structure of the support of the folding mechanism of the flexible screen provided by the invention in a second position;

fig. 7 is a cross-sectional view of the invention at B-B in fig. 6.

In the figure:

1. a base; 2. a support assembly; 3. a slide block; 4. a flexible screen;

11. a bottom plate; 12. a guide member; 13. a limit part; 14. a through groove; 21. a support; 22. a telescoping member;

121. a clamping surface; 122. a baffle; 123. a chute; 124. a first end; 125. a second end; 211. a sliding part.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, and may be, for example, either fixed or removable; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

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

The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.

The embodiment provides an electronic device. As shown in fig. 1, the electronic device includes a folding mechanism of two flexible screens, and further includes a device main body and a flexible screen 4. The folding mechanism of the two flexible screens is arranged on the back of the equipment main body, and the supporting piece 21 is fixedly connected with the equipment main body. The flexible screen 4 is arranged on the front surface of the equipment main body and is fixedly connected with the equipment main body, and the folding mechanism of the flexible screen can drive the equipment main body to fold so as to drive the flexible screen 4 to fold.

The device body is able to support the flexible screen 4 while keeping the distance between the two folding mechanisms unchanged. The device main body can rotate around the connecting line of the two bases 1 along with the rotation of the two supporting pieces 21 of the folding mechanism, so that the folding and unfolding of the flexible screen 4 are realized, and the flexible screen 4 is stretched under the action of the two supporting pieces 21 of the folding mechanism to eliminate folds or bending marks of the folding part of the flexible screen 4.

As shown in fig. 2 and 3, the folding mechanism includes a base 1 and two support members 2. The base 1 comprises a bottom plate 11 and a guide piece 12, wherein a first end 124 and a second end 125 of the guide piece 12 are respectively and fixedly connected to two ends of the bottom plate 11, a limiting part 13 is arranged at the top of the guide piece 12, through grooves 14 are respectively formed in two ends of the limiting part 13 of the guide piece 12, and the through grooves 14 extend to the first end 124 and the second end 125 of the guide piece 12 respectively. The two support components 2 are respectively located at two ends of the limiting part 13, the support components 2 comprise support pieces 21 and telescopic pieces 22, one ends of the telescopic pieces 22 are hinged with the bottom plate 11, the other ends of the telescopic pieces 22 penetrate through the through grooves 14 and are fixedly connected with the support pieces 21, the support pieces 21 are slidably connected to two sides of the through grooves 14, and the support pieces 23 are fixedly connected with the back of the equipment body. The two supporting members 21 are in the first position when they slide against the limiting portion 13 in opposite directions, the two supporting members 21 are in the second position when they slide against each other to the first end 124 and the second end 125 of the guide member 12, and the telescopic member 22 is extended when the supporting members 21 are turned from the first position to the second position.

The bottom plate 11 of the folding mechanism is used to secure the guide 12 and connect the support assembly 2. The two folding mechanisms are arranged in the width direction of the apparatus main body, the two supporting pieces 21 of each folding mechanism are arranged in the length direction of the apparatus main body, and the two supporting pieces 21 of the same folding mechanism fix the two ends of the apparatus main body in the length direction, respectively. As shown in fig. 4 to 7, when the two supporting members 21 slide in opposite directions and are abutted against the limiting portion 13, the device main body is driven by the supporting members 21 to rotate around the connecting line of the two bases 1, and the device main body is folded around the connecting line of the two bases 1, so that the flexible screen 4 is driven to be folded. When the two support members 21 slide back to the first end 124 and the second end 125 of the guide member 12, the two support members 21 in each folding mechanism are collinear, and the device body will be unfolded, thereby driving the flexible screen 4 to be unfolded into a plane. The stopper 13 can restrict the distance between the two supports 21 when folding the flexible screen 4, preventing the flexible screen 4 from being pressed too close.

As shown in fig. 5 and 7, if the lengths of the two supporting members 21 are a, the lengths of the telescopic rods are b when the supporting members 21 are in the first position, the lengths of the telescopic rods are c when the supporting members 21 are in the second position, and the distance between the hinge points of the two telescopic rods and the base plate 11 is d. As shown in fig. 5, when the support 21 is in the first position, the total length of the apparatus body between the two ends of the two supports 21 of the same folding mechanism is 2a+2b+d at the longest. As shown in fig. 7, when the support 21 is in the second position, the total length of the apparatus body between both ends of the two supports 21 of the same folding mechanism is 2a+2c+d. Since the telescopic rod is extended when the support 21 is turned from the first position to the second position along the through slot 14 c > b. The length direction of equipment main part's size increases for flexible screen 4 is exerted pulling force by the equipment main part, even if the boundary department of flexible screen 4 has produced fold or bending trace, the equipment main part also can stretch flexible screen 4, eliminates fold or bending trace that the boundary department produced, thereby can not influence user's visual sense.

In order to make the support 21 smoother when it is turned from the first position to the second position, the top surface of the guide 12 is an arc surface, and the arc of the arc surface is a minor arc. Because the arc surface is a minor arc, the vertical length of the hinge point of the telescopic member 22 and the bottom plate 11 from the arc surface is smaller than the distance of the hinge point from the first end 124 or the second end 125 of the guide member 12, so that the telescopic member 22 is extended when the support member 21 and the telescopic member 22 rotate from the first position to the second position relative to the base.

As shown in fig. 2 and 3, the folding mechanism further includes a slider 3, where the slider 3 is disposed at one end of the support 21 connected to the telescopic member 22, and the support 21 is slidably connected to two sides of the through slot 14 through the slider 3. On the one hand, the sliding smoothness is difficult to be ensured, and on the other hand, the length of the support piece 21 becomes shorter along with the increase of abrasion, so that the stretching effect on the flexible screen 4 can be reduced. The supporting piece 21 is connected with the two sides of the through groove 14 in a sliding way through the sliding block 3, so that the supporting piece 21 can be prevented from being worn. And the operator can select the material of slider 3 according to actual need, for example select the material that the wearability is good in order to reduce the wearing and tearing of slider 3. On the other hand, if the sliding block 3 is severely worn, the sliding block 3 can be replaced by an operator, so that the maintenance is convenient.

Preferably, the arc of the side of the slider 3 contacting both sides of the through groove 14 is equal to the arc of the top surface of the guide 12. The surface contact is realized to slider 3 and the both sides of leading to the groove 14, has increased the area of contact when sliding, can prevent effectively that the inseparable local wearing and tearing that lead to because of slider 3 and leading to the groove 14 laminating from influencing life.

Preferably, the telescoping member 22 is an elastic member. When the support member 21 is turned from the first position to the second position to extend the elastic member, the elastic member will generate a tensile force on the support member 21 to increase the friction between the support member 21 and the guide member 12, so that the stability of the flexible screen 4 during unfolding can be increased, and the use feeling can be improved due to the damping effect during operation.

Wherein, the elasticity coefficient of the elastic piece is adjustable. The elastic coefficient of the elastic element can be adjusted according to actual needs by an operator, so that the problems that the damping effect is low due to too small pulling force, the use experience is affected, or the support element 21 crushes the guide element 12 to damage the flexible screen 4 due to too large pulling force are avoided.

Further, the first end 124 and the second end 125 of the guide member 12 are provided with a clamping surface 121, and the clamping surface 121 forms a right angle with the bottom plate 11. When the support member 21 is at the second position, the support member 21 abuts against the clamping surface 121, so that the support member 21 can be stably at the second position, and the elastic member is prevented from pulling the support member 21 back to the first position.

Preferably, the guide 12 is provided with a baffle 122 on each side of the through slot 14, and each side of the support 21 is slidably abutted against the two baffles 122. The two baffles 122 can guide the support 21, so that the support 21 can only move along the direction of the through groove 14, and the support 21 cannot twist the device body and the flexible screen 4 due to the change of the moving direction.

Further, a sliding portion 211 is convexly provided at one end of the supporting member 21 connected to the telescopic member 22, a sliding groove 123 is concavely provided at the connection portion of the baffle 122 and the guiding member 12, and the sliding portion 211 is slidably provided in the sliding groove 123. The sliding portion 211 is limited by the sliding groove 123, so that the supporting piece 21 cannot move along the axial direction, the equipment main body and the flexible screen 4 can only be stretched when the supporting piece 21 slides along the through groove 14, the stretching amplitude of the flexible screen 4 is controllable, and an operator can reasonably design the radian of the cambered surfaces of the supporting piece 21, the telescopic piece 22 and the guiding piece 12 conveniently.

The foregoing is merely exemplary of the present invention, and those skilled in the art should not be considered as limiting the invention, since modifications may be made in the specific embodiments and application scope of the invention in light of the teachings of the present invention.

Claims

1. A folding mechanism for a flexible screen, comprising:

the base (1), base (1) includes bottom plate (11) and guide (12), first end (124) and second end (125) of guide (12) are respectively fixed connection in bottom plate (11) both ends, the top of guide (12) is provided with spacing portion (13), guide (12) are located spacing portion (13) both ends have all seted up logical groove (14), logical groove (14) are respectively to first end (124) and second end (125) of guide (12) extend;

two supporting components (2) are located respectively the both ends of spacing portion (13), supporting components (2) are including support piece (21) and extensible member (22), the one end of extensible member (22) with bottom plate (11) are articulated, the other end of extensible member (22) pass through logical groove (14) with support piece (21) fixed connection, support piece (21) sliding connection in the both sides of logical groove (14), two support piece (21) sliding butt in opposite directions are in the first position when spacing portion (13), two support piece (21) are in the second position when being in respectively opposite directions to slide to first end (124) and second end (125) of direction piece (12), support piece (21) are by when first position turns to the second position, extensible member (22) stretches.

2. A folding mechanism of a flexible screen according to claim 1, characterized in that the top surface of the guide (12) is a cambered surface.

3. A folding mechanism of a flexible screen according to claim 2, further comprising a slider (3), wherein the slider (3) is arranged at one end of the support member (21) connected with the telescopic member (22), and the support member (21) is slidably connected with both sides of the through groove (14) through the slider (3).

4. A folding mechanism of a flexible screen according to claim 3, characterized in that the curvature of the side of the slider (3) in contact with the two sides of the through slot (14) is equal to the curvature of the top surface of the guide (12).

5. A folding mechanism of a flexible screen according to claim 1, characterized in that the telescopic member (22) is an elastic member.

6. A folding mechanism for a flexible screen as recited in claim 5, wherein the spring rate of said spring member is adjustable.

7. A folding mechanism of a flexible screen according to claim 1, characterized in that the first end (124) and the second end (125) of the guide (12) are each provided with a clamping surface (121), the clamping surfaces (121) being at right angles to the angle of the base plate (11).

8. A folding mechanism of a flexible screen according to claim 1, characterized in that the two sides of the guide (12) located in the through slot (14) are respectively provided with a baffle (122), and the two sides of the support (21) are respectively in sliding abutment with the two baffles (122).

9. The folding mechanism of a flexible screen according to claim 8, wherein a sliding portion (211) is convexly arranged at one end of the supporting member (21) connected with the telescopic member (22), a sliding groove (123) is concavely arranged at the connection position of the baffle plate (122) and the guide member (12), and the sliding portion (211) is slidably arranged in the sliding groove (123).

10. An electronic device comprising two folding mechanisms of the flexible screen of any of claims 1-9, further comprising:

the device comprises a device main body, two folding mechanisms of the flexible screen are arranged on the back surface of the device main body, and the supporting piece (21) is fixedly connected with the device main body;

the flexible screen (4) is arranged on the front face of the equipment main body and is fixedly connected with the equipment main body.