CN109002079B - Folding mechanism for flexible screen and mobile terminal - Google Patents

Abstract

The invention provides a folding mechanism for a flexible screen and a mobile terminal, wherein the folding mechanism comprises a first shell, a second shell, a connecting rod, a first accommodating supporting rod and a second accommodating supporting rod; one end of the connecting rod is hinged with the first shell, the other end of the connecting rod is hinged with the second shell, one side of the first accommodating supporting rod is hinged with the first shell, one side of the second accommodating supporting rod is hinged with one side of the second shell, and the other side of the first accommodating supporting rod is hinged with the other side of the second accommodating supporting rod; the first shell, the second shell, the connecting rod, the first accommodating supporting rod and the second accommodating supporting rod form a five-link mechanism in the projection of the same plane. The invention forms a five-bar mechanism by the connecting bar, the shell and the two containing support bars, drives the connecting bar mechanism to move by utilizing the relative rotation of the two shells, can realize the containing of the deformable screen area at each position by the rotation of the two containing support bars, and strengthens the stability of the mobile terminal by utilizing the dead point of the mechanism under the fully unfolded state and the fully folded state.

Description

Folding mechanism for flexible screen and mobile terminal

Technical Field

The invention relates to the technical field of electronic products, in particular to a folding mechanism for a flexible screen and a mobile terminal with the folding mechanism.

Background

With the continuous popularization of the full-screen, the mobile terminal balances better portability while pursuing large-screen visual experience, and the physical limit of a single screen is to realize 100% screen occupation ratio under a holding size. On the premise of carrying about, a folding mobile terminal is developed in order to pursue a larger screen, the existing folding mobile terminal is realized by adopting double screens, and after the folding mobile terminal is unfolded, an obvious cutting feeling exists between the two screens, so that the perfection of a visual effect cannot be realized.

Based on the background, the flexible screen technology is rapidly developed, besides the flexible screen, a foldable flexible screen is also provided, and the foldable flexible screen has a perfect overall visual effect after being unfolded due to the fact that only one screen is provided. The flexible screen foldable mobile terminal can be divided into an inner bending flexible screen mobile terminal and an outer bending flexible screen mobile terminal according to the position of a folded screen, wherein a bent screen area is called a deformable screen area. To the interior mobile terminal that bends, the screen is in mobile terminal's inside after folding, is protected by mobile terminal's casing, possesses better shock resistance. However, although the folding action of the internally-bent mobile terminal in the prior art can be realized, the whole screen cannot be stretched, and the deformable screen region can not be accommodated in the folded state and supported in the unfolded state.

Disclosure of Invention

The first purpose of the present invention is to provide a folding mechanism for a flexible screen, so as to solve the problem that the existing flexible screen foldable mobile terminal cannot support a deformable screen area in a folded state in a storage state and in an unfolded state.

In order to achieve the purpose, the technical scheme provided by the invention is as follows: a folding mechanism for a flexible screen, comprising: a first housing and a second housing for connecting the flexible screen; one end of the connecting rod is hinged with the first shell, the other end of the connecting rod is hinged with the second shell, and the connecting rod enables the first shell and the second shell to rotate relatively so as to unfold or fold the flexible screen; the first accommodating support rod and the second accommodating support rod are positioned between the first shell and the second shell, one side of the first accommodating support rod is hinged with one side of the first shell, one side of the second accommodating support rod is hinged with one side of the second shell, and the other side of the first accommodating support rod is hinged with the other side of the second accommodating support rod; the first shell is provided with a first connecting section, the first connecting section is located between the hinged position of the first shell and the connecting rod and the hinged position of the first shell and the first accommodating support rod, the second shell is provided with a second connecting section, the second connecting section is located between the hinged position of the second shell and the connecting rod and the hinged position of the second shell and the second accommodating support rod, and the first connecting section, the second connecting section, the connecting rod, the first accommodating support rod and the second accommodating support rod form a five-link mechanism.

According to the folding mechanism provided by the invention, a classic five-bar mechanism is formed by the connecting rod, the shell and the two accommodating supporting rods, the relative rotation of the two shells is utilized to drive the connecting rod mechanism to move, the accommodation of the deformable screen area can be realized at each position by the rotation of the two accommodating supporting rods, and the dead point of the mechanism is utilized to enhance the stability of the mobile terminal in the fully unfolded and fully folded states.

In addition, the folding mechanism for the flexible screen according to the above embodiment of the present invention may further have the following additional technical features:

according to an example of the invention, a first rotating pair is formed between one end of the main body and the first shell, and a second rotating pair is formed between the other end of the main body and the second shell, the first rotating pair comprises a first rotating shaft and a first shaft hole which are matched with each other, and the second rotating pair comprises a second rotating shaft and a second shaft hole which are matched with each other; one end of the connecting rod is provided with one of the first rotating shaft and the first shaft hole, and the first shell is provided with the other one of the first rotating shaft and the first shaft hole; the other end of the connecting rod is provided with one of the second shaft hole and the second rotating shaft, and the second shell is provided with the other of the second rotating shaft and the second shaft hole.

According to an example of the present invention, the end portion of one side of the first housing is provided with a first notch, the end portions of one side of the second housing are provided with second notches, and one part of the connecting rod is placed in the first notch, and the other part of the connecting rod is placed in the second notch.

According to an example of the present invention, the number of the connecting rods is two, and the first accommodating support rod and the second accommodating support rod are disposed between the two connecting rods.

According to an example of the present invention, a third rotation pair is formed between one side of the first accommodating support bar and one side of the first housing, a fourth rotation pair is formed between one side of the second accommodating support bar and one side of the second housing, the third rotation pair includes a third rotation shaft and a third shaft hole which are matched, and the fourth rotation pair includes a fourth rotation shaft and a fourth shaft hole which are matched; the first accommodating support rod is provided with one of the third rotating shaft and the third shaft hole, and the first shell is provided with the other of the third rotating shaft and the third shaft hole; the second accommodating support rod is provided with one of the fourth rotating shaft and the fourth shaft hole, and the second shell is provided with the other of the fourth rotating shaft and the fourth shaft hole.

According to an example of the present invention, the other side of the first accommodating support bar and the other side of the second accommodating support bar form a fifth revolute pair, and the fifth revolute pair comprises a fifth rotating shaft and a fifth shaft hole which are matched with each other; the first accommodating support rod is provided with one of the fifth rotating shaft and the fifth shaft hole, and the second accommodating support rod is provided with the other of the fifth rotating shaft and the fifth shaft hole.

According to an example of the present invention, one side of the first housing is provided with a first recess, one side of the first accommodating support rod is mounted in the first recess, and when the first housing and the second housing are in a fully folded state, the other side of the first accommodating support rod is rotated into the first recess; and/or, the second casing is equipped with the second depressed part, the second depressed part the installation of bracing piece one side is acceptd to the second on the second depressed part, first casing with when the second casing is in complete folding state, the bracing piece opposite side is acceptd to the second and is rotated in the second depressed part.

According to an example of the invention, the first and/or second receiving support bars are provided with outwardly extending handles.

According to an example of the present invention, the first receiving support bar and the second receiving support bar have the same width.

A second object of the present invention is to provide a mobile terminal having a folding mechanism for a flexible screen as described in the above technical solution.

Advantages of the above additional aspects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is an exploded view of a folding mechanism according to a first embodiment;

FIG. 2 is a view showing a fully unfolded state of the folding mechanism according to the first embodiment;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic diagram of the folding mechanism according to the first embodiment in a fully unfolded state;

FIG. 5 is a fully folded view of the folding mechanism according to the first embodiment;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;

fig. 7 is a mechanism schematic diagram of the folding mechanism according to the first embodiment in a fully folded state.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a flexible screen; 2. a first housing; 21. a first shaft hole; 22. a first notch; 23. a third rotating shaft; 24. a first recess; 3. a second housing; 31. a second notch; 32. a fourth shaft hole; 4. a connecting rod; 41. a main body; 42. a first rotating shaft; 43. a second rotating shaft; 5. a first accommodating support rod; 51. a third shaft hole; 52. a fifth rotating shaft; 6. a second accommodating support rod; 61. a fourth rotating shaft; 62. a fifth shaft hole; 7. and (4) a handle.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

Example one

As shown in fig. 1, the present embodiment provides a folding mechanism for a flexible screen, including: the flexible screen comprises afirst shell 2 and asecond shell 3 which are used for connecting theflexible screen 1, a connectingrod 4, a first accommodating supportingrod 5 and a second accommodating supportingrod 6.

Thefirst housing 2 and thesecond housing 3 of the present embodiment are themselves used as a part of the mobile terminal, and may also be used as a part of the folding mechanism of the present embodiment, thefirst housing 2 and thesecond housing 3 have mounting slots for mounting the flexible screen, one part of the flexible screen is mounted in the mounting slot of thefirst housing 2, and the other part of the flexible screen is mounted in the mounting slot of thesecond housing 3. As shown in fig. 2, 3, 5 and 6, with the relative rotation of thefirst casing 2 and the second casing 3 (i.e. the folding and unfolding of the mobile terminal), the portion of theflexible screen 1 corresponding to the rotation axis of the two casings will bend and flatten, and this portion is the deformable screen area of the flexible screen.

In this embodiment, one end of the connectingrod 4 is hinged to thefirst casing 2, and the other end is hinged to thesecond casing 3, so that thefirst casing 2 and thesecond casing 3 can rotate relatively, and theflexible screen 1 is unfolded or folded by the rotation of thefirst casing 2 and thesecond casing 3.

Specifically, the connectingrod 4 of the present embodiment has various structural forms, for example, as shown in fig. 1, the connectingrod 4 includes a main body 41, a first rotatingshaft 42 and a second rotating shaft 43 perpendicular to the main body are disposed at two ends of the main body 41, afirst shaft hole 21 adapted to the first rotatingshaft 42 is disposed at one side of thefirst housing 2, and a second shaft hole (not shown) adapted to the second rotating shaft 43 is disposed at one side of thesecond housing 3.

For another example, two shaft holes perpendicular to the main body 41 are formed at two ends of the main body 41, two rotating shafts adapted to the two shaft holes are formed at one side of thefirst casing 2, or one end of the main body 41 is provided with a rotating shaft, the other end of the main body is provided with a shaft hole, thefirst casing 2 is provided with a shaft hole adapted to the rotating shaft, and thesecond casing 3 is provided with a rotating shaft adapted to the shaft hole (none of the above structures is shown in the figure). Of course, the form of the hinge connection between the connectingrod 4 and the first andsecond housings 2 and 3 is not limited thereto, and any hinge connection known to those skilled in the art is within the scope of the present embodiment, and will not be described in detail herein.

Specifically, the number of the connectingrods 4 in this embodiment is two, and the two connectingrods 4 are installed on the upper and lower sides of the whole casing (composed of thefirst casing 2 and the second casing 3), so that the overall stability of the structure is improved. Preferably, in this embodiment, the two end portions of one side of thefirst housing 2 are both provided withfirst notches 22, the two end portions of one side of thesecond housing 3 are both provided withsecond notches 31, one portion of the connectingrod 4 is disposed in thefirst notches 22, and the other portion is disposed in thesecond notches 31, so that the connectingrod 4 is hidden in the notches, the integrity and the aesthetic property of the folding mechanism are improved, and thefirst shaft hole 21 and the second shaft hole can be directly formed in the notches, so that thefirst housing 2 and thesecond housing 3 can rotate relatively, and theflexible screen 1 is driven to fold and unfold.

Specifically, the firstaccommodating support bar 5 and the secondaccommodating support bar 6 of the present embodiment are located between thefirst housing 2 and thesecond housing 3, and further, between the two connectingrods 4. One side of the firstaccommodating support rod 5 is hinged to thefirst shell 2, one side of the secondaccommodating support rod 6 is hinged to one side of thesecond shell 3, the other side of the firstaccommodating support rod 5 is hinged to the other side of the secondaccommodating support rod 6, and when thefirst shell 2 and thesecond shell 3 rotate relatively, the firstaccommodating support rod 5 and the secondaccommodating support rod 6 can be driven to rotate relatively.

Referring to fig. 4 and 7, in the present embodiment, the first housing 2 is provided with a first connecting section located between the hinge of the first housing 2 and the connecting rod 4 and the hinge of the first housing 2 and the first accommodating support rod 5, the second housing 3 is provided with a second connecting section located between the hinge of the second housing 3 and the connecting rod 4 and the hinge of the second housing 3 and the second accommodating support rod 6, the projections of the first connecting section, the second connecting section, the connecting rod 4, the first accommodating support rod 5 and the second accommodating support rod 6 on the same plane form a classic five-bar linkage mechanism, specifically, the connecting rod 4 is regarded as a first rod body of the five-bar linkage mechanism, the second connecting section is regarded as a second rod body of the five-bar linkage mechanism, the second connecting section is regarded as a third rod body of the five-bar linkage mechanism, and the first accommodating support rod 5 and the second accommodating support rod 6 are regarded as a fourth rod body and a fifth rod body of the five-bar linkage mechanism, it should be noted that the connecting rod 4 and the first accommodating support rod 5 and the second accommodating support rod 6 of the present embodiment are not located on a single cross section, and the connecting rod 4 is prevented from affecting the rotation of the first accommodating support rod 5 and the second accommodating support rod 6, but the above-mentioned five-bar mechanism may be formed, and the connecting rod 4 and the two accommodating support rods are connected through the first housing 2 and the second housing 3.

As shown in fig. 4, when thefirst housing 2 and thesecond housing 3 are in the fully unfolded state, the firstaccommodating support rod 5 and the secondaccommodating support rod 6 are collinear and attached below theflexible screen 1 to support the deformable screen area of the flexible screen, in this state, the folding mechanism is in a singular shape position and is in a mechanism dead point, theflexible screen 1 cannot be folded through thefirst housing 2 and thesecond housing 3, the collinear accommodating support rods can only be removed through an external force, theflexible screen 1 in the fully unfolded state is supported to a certain extent, and the stability of the mobile terminal in the fully unfolded state is improved.

Referring to fig. 7, when the first housing 2 and the second housing 3 are in the fully folded state, the first receiving support rod 5 and the second receiving support rod 6 rotate to the other side of the connecting rod 4, and the first receiving support rod 5 and the second receiving support rod 6 are also in the collinear state and are attached to the lower side of the flexible screen 1, because the positions of the first receiving support rod 5 and the second receiving support rod 6 are changed, the first receiving support rod 5, the second receiving support rod 6, one side of the first housing 2 and one side of the second housing 3 together form a receiving area similar to a trapezoid (the shape of the receiving area is changed according to the width of the two receiving support rods and the length of one side of the two housings), the deformable screen area in the folded state of the flexible screen 1 can be received and supported to a certain extent, and in this state, the folding mechanism is also in the singular position, and at the dead point of the mechanism, the flexible screen 1 cannot be unfolded through the first shell 2 and the second shell 3, and the collineation of the two accommodating support rods can be removed only through external force, so that the stability of the mobile terminal in the completely unfolded state is improved.

Preferably, in order to facilitate the release of the singular position of the folding mechanism, in this embodiment, the first receivingsupport bar 5 and the secondreceiving support bar 6 are provided withhandles 7 extending outward, so that the user can break the dead point state of the mechanism by pulling thehandles 7 outward, and then close the mobile terminal by the rotation of thefirst housing 2 and thesecond housing 3.

Preferably, the widths of the firstaccommodating support bar 5 and the secondaccommodating support bar 6 of the present embodiment are equal, and the sizes of the portions of thefirst housing 2 and thesecond housing 3 serving as the bar bodies are also designed to be equal, so that when the mobile terminal is in the folded state, a trapezoidal accommodating space can be formed, which facilitates the accommodation of the deformable screen area of theflexible screen 1.

Specifically, the firstaccommodating support rod 5, the secondaccommodating support rod 6 and the housing assembly of the present embodiment are hinged in various ways, for example, as shown in fig. 1, a third rotation shaft hole 41 is formed at one side of the firstaccommodating support rod 5, athird rotation shaft 23 adapted to the third rotation shaft hole 51 is formed at one side of thefirst housing 2, afourth rotation shaft 61 is formed at one side of the secondaccommodating support rod 6, and a fourthrotation shaft hole 32 adapted to thefourth rotation shaft 61 is formed at one side of thesecond housing 3. Of course, the arrangement mode of the rotating shaft and the shaft hole can be replaced between the shell and the accommodating support rod as long as the rotating requirement can be met.

Specifically, the firstaccommodating support bar 5 and the secondaccommodating support bar 6 of the present embodiment have various hinge forms, for example, as shown in fig. 1, a fifth rotating shaft 52 is disposed on the other side of the firstaccommodating support bar 5, and afifth shaft hole 62 adapted to the fifth rotating shaft 52 is disposed on the other side of the secondaccommodating support bar 6; or a rotating shaft is arranged on the other side of the first accommodating support rod, and a shaft hole is arranged on the other side of the second accommodating support rod.

Of course, the hinge type between the two accommodating support rods and the housing is not limited thereto, and any hinge type known to those skilled in the art is also within the scope of the present embodiment.

Preferably, in order to facilitate the rotation and accommodation of the firstaccommodating support rod 5 and the secondaccommodating support rod 6, in this embodiment, afirst recess 24 is disposed on one side of thefirst housing 2, a second recess (not shown) is disposed on one side of thesecond housing 3, the firstaccommodating support rod 5 is mounted on one side of the firstaccommodating support rod 24, thefirst housing 2 and thesecond housing 3 are in a completely folded state (i.e., the state shown in fig. 5 and 6), the other side of the firstaccommodating support rod 5 is rotated into thefirst recess 24, the second recess is mounted on one side of the secondaccommodating support rod 6, and when thefirst housing 2 and thesecond housing 3 are in a completely folded state, the other side of the secondaccommodating support rod 6 is rotated into the second recess.

To sum up, the folding mechanism that this embodiment provided, simple structure not only, low cost, form classic five-bar linkage through two casings, connecting rod and two receipts bracing pieces moreover, can realize the support function to the flexible screen under the function of acceping and the expansion state of flexible screen to the flexible screen under fold condition, utilize the stability when mechanism auto-lock characteristic has strengthened mobile terminal expandes completely and folds completely.

Example two

The embodiment provides a mobile terminal, which may be any one of a mobile phone, an IPAD and other devices, and includes aflexible screen 1 and the folding mechanism of the first embodiment.

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

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

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

a first housing and a second housing for connecting the flexible screen;

one end of the connecting rod is hinged with the first shell, the other end of the connecting rod is hinged with the second shell, and the connecting rod enables the first shell and the second shell to rotate relatively so as to unfold or fold the flexible screen;

the first accommodating support rod and the second accommodating support rod are positioned between the first shell and the second shell, one side of the first accommodating support rod is hinged with one side of the first shell, one side of the second accommodating support rod is hinged with one side of the second shell, and the other side of the first accommodating support rod is hinged with the other side of the second accommodating support rod;

the first shell is provided with a first connecting section, the first connecting section is located between the hinged position of the first shell and the connecting rod and the hinged position of the first shell and the first accommodating support rod, the second shell is provided with a second connecting section, the second connecting section is located between the hinged position of the second shell and the connecting rod and the hinged position of the second shell and the second accommodating support rod, and the first connecting section, the second connecting section, the connecting rod, the first accommodating support rod and the second accommodating support rod form a five-link mechanism.

2. The folding mechanism of claim 1 wherein one end of said link forms a first revolute pair with said first housing and the other end forms a second revolute pair with said second housing, said first revolute pair including a first revolute shaft and a first shaft hole that mate with each other, said second revolute pair including a second revolute shaft and a second shaft hole that mate with each other; one end of the connecting rod is provided with one of the first rotating shaft and the first shaft hole, and the first shell is provided with the other one of the first rotating shaft and the first shaft hole; the other end of the connecting rod is provided with one of the second shaft hole and the second rotating shaft, and the second shell is provided with the other of the second rotating shaft and the second shaft hole.

3. The folding mechanism of claim 1 wherein said first housing has a first notch at one end and said second housing has a second notch at one end, and wherein said link is disposed partially in said first notch and partially in said second notch.

4. The folding mechanism of any of claims 1 to 3 wherein said number of links is two, said first receiving support bar and said second receiving support bar being disposed between said two links.

5. The folding mechanism of claim 1, wherein a third rotation pair is formed between one side of the first accommodating support bar and one side of the first housing, a fourth rotation pair is formed between one side of the second accommodating support bar and one side of the second housing, the third rotation pair comprises a third rotation shaft and a third shaft hole which are matched, and the fourth rotation pair comprises a fourth rotation shaft and a fourth shaft hole which are matched; the first accommodating support rod is provided with one of the third rotating shaft and the third shaft hole, and the first shell is provided with the other of the third rotating shaft and the third shaft hole; the second accommodating support rod is provided with one of the fourth rotating shaft and the fourth shaft hole, and the second shell is provided with the other of the fourth rotating shaft and the fourth shaft hole.

6. The folding mechanism of claim 1 wherein the other side of said first receiving support bar and the other side of said second receiving support bar form a fifth revolute pair, said fifth revolute pair comprising a fifth axis of rotation and a fifth axis of aperture in cooperation; the first accommodating support rod is provided with one of the fifth rotating shaft and the fifth shaft hole, and the second accommodating support rod is provided with the other of the fifth rotating shaft and the fifth shaft hole.

7. The folding mechanism of claim 1, 2, 3, 5 or 6, wherein one side of the first housing is provided with a first recess, one side of the first accommodating support rod is installed in the first recess, and when the first housing and the second housing are in the fully folded state, the other side of the first accommodating support rod is rotated into the first recess;

and/or, the second casing is equipped with the second depressed part, the second depressed part the installation of bracing piece one side is acceptd to the second on the second depressed part, first casing with when the second casing is in complete folding state, the bracing piece opposite side is acceptd to the second and is rotated in the second depressed part.

8. A folding mechanism according to claim 1, 2, 3, 5 or 6, wherein the first and/or second receiving support bars are provided with outwardly extending tabs.

9. The folding mechanism of claims 1, 2, 3, 5 or 6 wherein said first and second housing support bars are the same width.

10. A mobile terminal characterized in that it comprises a folding mechanism according to any of claims 1-9.

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