CN110166589A - Screen folding structure and mobile terminal with same - Google Patents

Abstract

The invention discloses a screen folding structure and a mobile terminal having the same. The screen folding structure comprises: two connecting plates connected with the screen, with a preset interval between the two connecting plates; The inner hinge assembly; two sliding plates located between the two connecting plates; one side of one of the sliding plates is slidably connected with a connecting plate, and the other side is connected with the hinge assembly and can be positioned at the hinge One side of the other sliding plate is slidingly connected with the other connecting plate, and the other side is connected with the hinge assembly and can rotate on the hinge assembly. The screen folding structure of the present invention has a sliding plate and a connecting plate. During the folding and unfolding process of the screen, the sliding of the sliding plate on the connecting plate realizes compensation for the position offset caused by bending, and avoids the bending or opening process. The flexible screen generates pulling force to ensure the stability of the screen.

Description

A screen folding structure and mobile terminal with same

technical field

The invention relates to the technical field of electronic products, in particular to a screen folding structure and a mobile terminal having the same.

Background technique

With the upgrading of electronic products, the display screens of various electronic equipment terminals, such as mobile phones and tablet computers, are becoming larger and larger, so as to bring better user experience. However, as the size of the screen increases, the size of the electronic device will also increase accordingly, which will cause problems of inconvenient portability and storage. At present, flexible folding screen technology has found a good compromise between the development of miniaturization of electronic equipment and the development of large-screen display screens. Expand the screen to get a screen with a larger display area.

However, the existing folding screen squeezes the inner side of the folding area when it is bent, and stretches the inner side of the folding area when it is unfolded, resulting in a change in the length of the internal structure of the body. The screen generates pulling force, affecting screen performance.

Contents of the invention

The first purpose of the present invention is to provide a screen folding structure to solve the problem that the internal structure of the fuselage will generate a pulling force on the screen when the existing folding screen is bent or unfolded, which affects the performance of the screen.

In order to achieve the above object, the technical solution proposed by the present invention is as follows: a screen folding structure, comprising: two connecting plates connected to the screen, with a preset interval between the two connecting plates; The hinge assembly in the interior, the hinge assembly includes two first rotating shafts; two sliding plates located between the two connecting plates; one side of one of the sliding plates is slidably connected with a connecting plate, and the other side is slidably connected with the connecting plate One side of the other sliding plate is slidably connected with the other connecting plate, and the other side is connected with the hinge assembly and can rotate on the hinge assembly.

According to the screen folding structure provided by the present invention, it has a sliding plate and a connecting plate. During the folding and unfolding process of the screen, the sliding of the sliding plate on the connecting plate realizes compensation for positional deviation caused by bending, avoiding bending or The opening process generates a pulling force on the flexible screen, which ensures the stability of the screen.

In addition, the screen folding structure according to the above-mentioned embodiments of the present invention may also have the following additional technical features:

According to an example of the present invention, the connecting plate is provided with a limiting portion, and the sliding plate is provided with a slide rail; or, the sliding plate is provided with a limiting portion, and the connecting plate is provided with a sliding rail; the limiting portion Cooperate with the slide rail in a limited position and can slide along the preset direction of the slide rail.

According to an example of the present invention, magnetic pieces are provided at both opposite ends of the slide rail, and when the limiting portion moves to one of the opposite ends of the slide rail, it is attracted to the magnetic piece to limit the Movement of the limiting part.

According to an example of the present invention, the slide rail is provided with a plurality of balls along its preset direction, and the limiting part is in rolling fit with the balls.

According to an example of the present invention, the connecting plate is provided with damping wheels, and the sliding plate is provided with multiple limiting structures; or, the sliding plate is provided with damping wheels, and the connecting plate is provided with multiple limiting structures A plurality of the limiting structures are arranged along the relative sliding direction of the sliding plate and the connecting plate; the outer edge of the damping wheel is provided with a plurality of teeth along its circumference, and the teeth are in interference fit with the limiting structures.

According to an example of the present invention, the limiting structure is a limiting hole or a limiting groove.

According to an example of the present invention, the connecting plate or the sliding plate is provided with a plurality of second rotating shafts along the relative sliding direction of the two, on which a rotating drum that can rotate around it is installed, and two adjacent rotating shafts The rotating drum forms one of the limiting holes.

According to an example of the present invention, the hinge assembly includes a first rotating shaft, a sleeve and a connecting piece; two sleeves are fitted side by side, one of the sleeves is connected with a sliding plate, and is sleeved on one of the sleeves. on the first rotating shaft; another sleeve is connected with another sliding plate, and is sheathed on the other first rotating shaft; the connecting piece is respectively connected with the two first rotating shafts.

According to an example of the present invention, the sliding plate is provided with a sleeve installation area, and the thickness of the sleeve installation area is smaller than the thickness of other parts of the sliding plate.

According to an example of the present invention, the connecting plate is provided with a notch for accommodating the sleeve.

According to an example of the present invention, the side portion of the connecting plate overlaps the side portion of the sliding plate; the thickness of the overlapping portion of the connecting plate and the sliding plate is smaller than the thickness of other parts.

According to an example of the present invention, the connecting plate is provided with rolling wheels, and the rolling wheels are rollingly matched with the sliding plate; or, the sliding plate is provided with rolling wheels, and the rolling wheels are rollingly matched with the connecting plate .

According to an example of the present invention, at least one of the two opposite ends of the sliding plate is provided with a supporting part, and the supporting part is used to support the screen.

According to an example of the present invention, it also includes a protective plate, the protective plate is provided with accommodating grooves or accommodating holes adapted to the shape and size of the screen, and the screen is installed in the accommodating groove; The connecting plate is connected with the screen through the protective plate.

The second object of the present invention is to provide a mobile terminal, which has the screen folding structure 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.

Description of drawings

FIG. 1 is a structural schematic diagram (1) of a screen folding structure according to an embodiment of the present invention;

FIG. 2 is a structural schematic diagram (2) of a screen folding structure according to an embodiment of the present invention;

FIG. 3 is a structural schematic diagram (3) of a screen folding structure according to an embodiment of the present invention;

Fig. 4 is the exploded view of the connecting plate of the embodiment of the present invention;

Fig. 5 is an exploded view of the sliding plate of the embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a sliding plate according to an embodiment of the present invention.

In the accompanying drawings, the list of parts represented by each label is as follows:

1. Screen; 2. Connecting plate; 3. Sliding plate; 4. Protective plate; 5. First rotating shaft; 6. Sleeve; 7. Connecting piece; 8. Limiting part; 9. Slide rail; 10. Magnetic piece ; 11, ball; 12, rolling wheel; 13, damping wheel; 14, limit structure; 15, second rotating shaft; 16, drum; 17, sleeve installation area;

Detailed ways

The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

Embodiment one

As shown in the accompanying drawings 1-3 (the screen 1 in the figure is in an unfolded state), this embodiment provides a screen folding structure, which includes two connecting plates 2, two sliding plates 3 and a hinge assembly; this embodiment The screen 1 in the example is a flexible screen with a folding function. The two connecting plates 2 are located on the inside of the flexible screen and are arranged side by side. A certain interval is preset between the two connecting plates 2 for the installation of the above-mentioned sliding plate. 3 and hinge components, etc.

Preferably, in order to prevent the length and dimension of the screen 1 from changing during the folding process, this embodiment also has a protective plate 4, the protective plate 4 is provided with accommodating grooves or accommodating holes that match the shape and size of the screen 1, and the screen 1 Installed in the accommodating groove; the connecting plate 2 is connected with the protective plate 4 and connected with the screen 1 through the protective plate 4 . Specifically, the protective plate 4 can be a frame structure, or a plate-shaped member with slots, and its material can also be folded and deformed.

The hinge assembly of this embodiment is located in the preset interval between the above two connecting plates 2, and the hinge assembly includes two first rotating shafts 5, two two sleeves 6 and a connecting piece 7; the two sleeves 6 are affixed side by side Together, one of the sleeves 6 is connected with a sliding plate 3, and is sleeved on a first rotating shaft, so that the sliding plate 3 can rotate around the first rotating shaft 5 through the sleeve 6; similarly, the other Sleeve 6 is connected with another sliding plate 3, and is sleeved on another first rotating shaft, so that this sliding plate 3 can rotate around this first rotating shaft 5 through sleeve 6; connected to the first shaft so that the two shafts are fixed together.

From the above structure, it can be seen that the screen folding structure provided by this embodiment has a sliding plate 3 and a connecting plate 2. During the folding and unfolding process of the screen 1, the sliding of the sliding plate 3 on the connecting plate 2 realizes compensation for the bending caused by bending. The position offset avoids pulling force on the flexible screen during bending or opening, and ensures the stability of the screen 1 .

There are many ways of sliding cooperation between the sliding plate 3 and the connecting plate 2 in this embodiment. For example, as shown in FIGS. One end of each slide plate 3 is provided with a slide rail 9; the position-limiting part 8 and the slide rail 9 are spaced and matched to realize the connection between the connecting plate 2 and the sliding plate 3, preventing the sliding plate 3 from deviating from the connecting plate 2, and limiting The position part 8 can slide along the preset direction of the slide rail 9 , and when the screen 1 is unfolded, the relative sliding between the limit part 8 and the slide rail 9 is realized through the cooperation of the stop part 8 and the slide rail 9 . Of course, a limiting portion 8 may also be provided on the sliding plate 3, and a sliding rail 9 may be provided on the connecting plate 2. The principle of this structure is the same as that of the above structure, which will not be repeated in this embodiment.

Based on the above-mentioned sliding fit method, in order to realize the stability of the screen 1 in the fully folded state and the fully unfolded state, this embodiment is also equipped with magnetic parts 10 at opposite ends of the slide rail 9, and the material of the stopper 8 is It is a magnet or metal that magnetically cooperates with the magnetic part 10. When the limiting part 8 moves to one of the opposite ends of the slide rail 9, the limiting part 8 and the magnetic part 10 attract each other to limit the movement of the limiting part 8. Further, the bending of the screen 1 is limited.

Preferably, in order to further reduce the sliding friction between the stopper 8 and the slide rail 9, in this embodiment, the slide rail 9 is also provided with several balls 11 along its preset direction, and the stopper 8 rolls with the balls 11 during the sliding process. The cooperation greatly reduces the frictional force between the limiting part 8 and the slide rail 9, and prolongs the service life of the limiting part 8.

In addition, since the sliding fit between the connecting plate 2 and the sliding plate 3 of the present embodiment is at the ends of the two, the present embodiment is also provided with a scroll wheel 12 on the upper middle part or the middle of the connecting plate 2, and the scroll wheel 12 and the sliding plate 3 are connected to each other. The sliding plate 3 is rolled and fitted to prevent other parts of the sliding plate 3 from rubbing against the connecting plate 2, further reducing the relative sliding friction between the two, and facilitating the unfolding of the screen 1. Certainly, a rolling wheel 12 may also be provided on the sliding plate 3, and the rolling wheel 12 is rollingly matched with the connecting plate 2; the principle of this structure is the same as the above structure, and this embodiment will not repeat it.

Based on the above structure, the inventors found that although the stability of the screen 1 in the folded state and the fully unfolded state can be achieved, with the continuous improvement of user needs, it is necessary to have a relatively stable use state when the screen 1 is folded to various positions , so the inventor also makes further improvements to the folding structure.

As shown in accompanying drawings 4-6, the connecting plate 2 of this embodiment is provided with a damping wheel 13. The damping wheel 13 means that the wheel body will be subject to a certain damping force during rotation, and external force is required to make it rotate. Matched, the present embodiment is provided with a plurality of position-limiting structures 14 on the sliding plate 3; a plurality of position-limiting structures 14 are arranged along the relative sliding direction of the sliding plate 3 and the connecting plate 2, and are arranged on the outer edge of the damping wheel 13 along its circumferential direction. There are multiple teeth, and the teeth are in interference fit with the limiting structure 14. The "interference fit" referred to here means that the size of the teeth is larger than the accommodating size of the limiting structure 14, and the two are squeezed together by assembly, and on the screen 1 During the rotation process, the teeth of the damping wheel 13 are always in this cooperating state with the limiting structure 14, so that the screen 1 can maintain the status quo at any angle and will not return to the original state under the restoring force of the screen 1 . Specifically, the limiting structure 14 of this embodiment may be a limiting hole or a limiting groove.

Based on the above-mentioned limiting structure 14, the inventors found that since the teeth of the damping wheel 13 and the limiting structure 14 are interference fit, it is necessary for a tooth to break away from the previous limiting structure 14 and enter the next limiting structure 14. , the teeth of the damping wheel 13 need to overcome greater friction and carry out a larger amount of deformation, which is easy to wear out the tooth structure of the damping wheel 13 and reduce its service life. A plurality of second rotating shafts 15 are provided in the sliding direction, and a smaller rotating drum 16 that can rotate around it is installed on the second rotating shaft 15. Two adjacent rotating drums 16 form a limiting hole, and then when the teeth break away from a limiting When the hole enters the next limit hole, it is easy to come out and enter, which prolongs the service life of the limit tooth.

Since the screen folding structure of this embodiment is applied to electronic products such as mobile phones or tablet computers, there are certain restrictions on its thickness and size, so this embodiment also improves the connection method and structural form of the connecting plate 2 and the sliding plate 3 .

As shown in Figures 4-6, one side portion on opposite sides of the connecting plate 2 in this embodiment overlaps with one side portion on opposite sides of the sliding plate 3, and the connecting plate 2 overlaps the sliding plate 3 The thickness of the part is smaller than that of other parts, so as to reduce the structural size of the electronic product.

In addition, a sleeve mounting area 17 is also provided on the sliding plate 3 , and the thickness of the sleeve mounting area 17 is smaller than that of other parts of the sliding plate 3 .

And because the sleeve 6 has a certain height, the sleeve 6 is located at the overlap between the two, so this embodiment is also provided with a gap 18 for accommodating the sleeve 6 on the side of the connecting plate 2, and the gap 18 avoids the sleeve. The barrel 6 further reduces the thickness dimension occupied by the structure.

In addition, the inventor found that the existing folding structure does not provide good support for the screen 1 during the folding and unfolding process of the screen 1, so in this embodiment, at least one of the two opposite ends of the sliding plate 3 is provided with a support portion 19, the support portion 19 It is used to support the screen 1, prevent the folding area from shifting, and improve the stability of the screen 1 during folding and unfolding.

Next, a further description will be made on the movement distance and structural cooperation relationship of the screen folding structure in this embodiment under folding and unfolding:

Taking the cooperation between one connecting plate 2 and one sliding plate 3 as an example, when the screen 1 is fully unfolded, the stoppers 8 of the two connecting plates 2 are located at one end of the slide rail 9, and pass through the magnetic piece 10 at the end. Limiting, at the same time, the teeth of the damping wheel 13 are located in the limiting structure 14 of the initial end (the left end of 2 in the figure), at this time, due to the effect of the limiting part 8 and the damping wheel 13, the screen 1 maintains a stable unfolded state.

When the screen 1 is gradually unfolded to the fully open state, the sliding plate 3 rotates around the first rotating shaft 5 through the sleeve 6, the stopper 8 slides along the preset direction of the slide rail 9, and contacts with the balls 11 in the slide rail 9 Rolling fit until the limiting part 8 moves to the other end of the slide rail 9, and is limited by the magnetic piece 10 at this end. During this process, the teeth of the damping wheel 13 pass through a plurality of limiting structures 14, and each The bit structure 14 has an interference fit to realize the temperature of the screen 1 at various folding angles.

Similarly, during this process, the scroll wheel 12 keeps rolling with the connecting plate 2 at all times during this process, reducing the friction between the connecting plate 2 and the sliding plate 3, while the support portion 19 of the sliding plate 3 keeps facing the screen 1 at all times. The supporting state improves the folding stability of the screen 1.

Embodiment two

This embodiment provides a mobile terminal, which has the screen folding structure as described in Embodiment 1. The mobile terminal can be a mobile phone, a tablet computer, etc. Since the improvement of the mobile terminal in this embodiment is only in the screen folding structure , and other components of electronic products such as mobile phones or tablet computers are common knowledge that can be obtained by those skilled in the art, so this embodiment will not describe them here. Similarly, since the structural features and structural advantages of the curtain folding structure have been introduced in detail in Embodiment 1, this embodiment will not repeat them.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. Nothing is to be construed as indicating or implying that the referred device must have a particular orientation, be constructed, or operate in a particular orientation, and should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" and other terms should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated Wait. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (15)

1. A screen folding structure, characterized in that, comprising: Two connection plates (2) connected to the screen (1), with a preset interval between the two connection plates (2); a hinge assembly located within said predetermined interval; Two sliding plates (3) located between the two connecting plates (2); one side of one of the sliding plates (3) is slidably connected to a connecting plate (2), and the other side is connected to the hinge assembly connected and can rotate on the hinge assembly; one side of the other sliding plate (3) is slidingly connected to the other connecting plate (2), and the other side is connected to the hinge assembly and can rotate on the hinge assembly . 2. The screen folding structure according to claim 1, characterized in that, the connecting plate (2) is provided with a limiting portion (8), and the sliding plate (3) is provided with a slide rail (9); or, the The sliding plate (3) is provided with a limiter (8), and the connecting plate (2) is provided with a slide rail (9); the limiter (8) cooperates with the limiter of the slide rail (9), and It can slide along the preset direction of the slide rail (9). 3. The screen folding structure according to claim 2, characterized in that magnetic pieces (10) are provided at opposite ends of the slide rail (9), and the stopper (8) moves to the slide When one of the opposite ends of the rail (9) is attracted to the magnetic piece (10), the movement of the limiting part (8) is restricted. 4. The screen folding structure according to claim 2, characterized in that, the slide rail (9) is provided with several balls (11) along its preset direction, and the limiting part (8) is connected with the balls ( 11) Roll fit. 5. The screen folding structure according to claim 1, characterized in that, the connecting plate (2) is provided with a damping wheel (13), and the sliding plate (3) is provided with a plurality of limiting structures (14); Or, the sliding plate (3) is provided with a damping wheel (13), and the connecting plate (2) is provided with a plurality of position-limiting structures (14); a plurality of position-limiting structures (14) along the sliding plate (3) Set relative to the sliding direction of the connecting plate (2); the outer edge of the damping wheel (13) is provided with a plurality of teeth along its circumference, and the teeth are in interference fit with the limiting structure (14). 6. The screen folding structure according to claim 5, characterized in that, the limiting structure (14) is a limiting hole or a limiting groove. 7. The screen folding structure according to claim 6, characterized in that, the connecting plate (2) or the sliding plate (3) is provided with a plurality of second rotating shafts (15) along the relative sliding direction of the two, A rotating drum (16) is installed on the second rotating shaft (15) to rotate around it, and two adjacent rotating drums (16) form a limiting hole. 8. The screen folding structure according to claim 1, characterized in that, the hinge assembly comprises a first rotating shaft (5), a sleeve (6) and a connecting piece (7); two of the sleeves (6) Fitting side by side, one of the sleeves (6) is connected with a sliding plate (3) and sleeved on one of the first rotating shafts; the other sleeve (6) is connected with the other sliding plate (3) , and sleeved on the other first rotating shaft; the connecting piece (7) is respectively connected with the two first rotating shafts. 9. The screen folding structure according to claim 8, characterized in that, the sliding plate (3) is provided with a sleeve installation area (17), and the thickness of the sleeve installation area (17) is smaller than that of the sliding plate (3) The thickness of other parts. 10. The screen folding structure according to claim 8, characterized in that, the connecting plate (2) is provided with a gap (18) for accommodating the sleeve (6). 11. The screen folding structure according to any one of claims 1-10, characterized in that, the side of the connecting plate (2) is overlapped with the side of the sliding plate (3); the connection The thickness of the joint between the plate (2) and the sliding plate (3) is smaller than that of other parts. 12. The screen folding structure according to any one of claims 1-10, characterized in that, the connecting plate (2) is provided with a rolling wheel (12), and the rolling wheel (12) is connected to the sliding plate ( 3) rolling fit; or, the sliding plate (3) is provided with a rolling wheel (12), and the rolling wheel (12) is rollingly fitted with the connecting plate (2). 13. The screen folding structure according to any one of claims 1-10, characterized in that, at least one of the two opposite ends of the sliding plate (3) is provided with a support portion (19), and the support portion (19) is used for for supporting the screen (1). 14. The screen folding structure according to any one of claims 1-10, characterized in that it also includes a protective plate (4), and the protective plate (4) is provided with a shape and size suitable for the screen (1). The accommodating groove or accommodating hole is arranged, and the screen (1) is installed in the accommodating groove; the connecting plate (2) is connected with the screen (1) through the protecting plate (4). 15. A mobile terminal, characterized in that it has the screen folding structure according to any one of claims 1-14.