A hinge applied to a flexible screen folding electronic terminal

Abstract

This invention provides a hinge for a flexible screen folding electronic terminal, including a first side connecting arm and a second side connecting arm, as well as a first side sliding frame and a second side sliding frame. The first and second side connecting arms are respectively equipped with mechanisms for mounting the top sliding frames. The hinge also includes a flexible screen support piece, with both ends connected to the first and second side sliding frames respectively. When the flexible screen folding electronic terminal is in a flattened state, the support piece is located on the top surface of the hinge. When the first and second side sliding frames are pressed together in opposite directions, the flexible screen support piece is tensioned. This invention provides comprehensive support for the center of the flexible screen and covers holes and gaps in the support plate. When the flexible screen folding electronic terminal is folded, it folds along with the flexible screen, providing protection outside the center of the flexible screen.

Description

Technical Field

[0001] This utility model relates to a hinge for use in flexible screen folding electronic terminals, such as mobile phones and laptops. Background Technology

[0002] In flexible foldable electronic devices, the increasing demand for thinness inevitably leads to interference between the central flexible screen support plate and hinge components, necessitating the creation of openings in the central support plate. Furthermore, in some structures using two movable support plates to support the central flexible screen, gaps also exist between the two plates. All of these factors negatively impact the user experience of touching the central flexible screen. Utility Model Content

[0003] The technical solution to be solved by this utility model is to provide a hinge for a flexible screen folding electronic terminal, which can at least partially improve the user experience of touch operation in the middle of the flexible screen. To this end, this utility model adopts the following technical solution:

[0004] A hinge for a flexible folding electronic terminal includes a first side connecting arm and a second side connecting arm, as well as a first side sliding bracket and a second side sliding bracket. The first and second side connecting arms are rotatably mounted on both sides of a central support. The first and second side sliding brackets are slidably connected to the first and second side connecting arms, respectively. Through this slidable connection, the first and second side sliding brackets can slide along rotation axes perpendicular to the first and second side connecting arms, respectively, when the flexible folding electronic terminal is opened and folded. The hinge is characterized in that the first and second side connecting arms are respectively provided with top sliding bracket mechanisms. In the structure, when the flexible screen foldable electronic terminal is in the flattened state, the mechanism of the top sliding bracket on the first side connecting arm and the second side connecting arm respectively presses the first side sliding bracket and the second side sliding bracket in a direction away from the rotation axis. When the flexible screen foldable electronic terminal is in the folded state, the mechanism of the top sliding bracket on the first side connecting arm and the second side connecting arm respectively disengages from the first side sliding bracket and the second side sliding bracket, or the force of pressing the first side sliding bracket and the second side sliding bracket in a direction away from the rotation axis is less than the force of pressing the first side sliding bracket and the second side sliding bracket when the flexible screen foldable electronic terminal is in the flattened state.

[0005] The hinge is also provided with a flexible screen flexible support piece. The two ends of the flexible screen flexible support piece are respectively connected to the first side sliding frame and the second side sliding frame. When the hinge is in the flattened state corresponding to the flexible screen folding electronic terminal, the flexible screen flexible support piece is located on the top surface of the hinge. When the first side sliding frame and the second side sliding frame are pressed in opposite directions, the flexible screen flexible support piece is tensioned.

[0006] Based on the above technical solutions, the present invention may also adopt the following further technical solutions, or combine these technical solutions:

[0007] The mechanism of the top sliding frame is an elastic top sliding frame mechanism.

[0008] The mechanism of the elastic top sliding frame includes a top head, a guide structure, and a support spring.

[0009] The support spring is a C-shaped wire spring, and the two ends of the C-shaped spring are connected to the top and the connecting arm, respectively.

[0010] The mechanism of the top sliding frame has multiple top heads arranged in parallel to balance and tighten the top sliding frame when the corresponding flexible screen folding electronic terminal is in a flattened state.

[0011] The head of the top is an arc head, and the first and second side sliding frames are provided with arc grooves corresponding to the arc head. When the sliding frame is tightened, the arc head is pushed into the groove.

[0012] The hinge is also provided with a first side push-pull link and a second side push-pull link. The first side push-pull link and the second side push-pull link are rotatably installed on both sides of the central support. The first side sliding frame and the second side sliding frame are rotatably connected to the first side push-pull link and the second side push-pull link, respectively. The push-pull link and the central support are connected by a virtual center rotation connection structure of a circular arc slider and a circular arc guide groove.

[0013] The first side connecting arm and the second side connecting arm are connected by a synchronous reverse rotation connection structure.

[0014] The first and second side sliding frames are respectively connected to the housings located on both sides of the central support of the flexible screen folding electronic terminal.

[0015] During the rotation of the flexible screen foldable electronic terminal from folding to unfolding, the first side sliding frame and the second side sliding frame slide towards the rotation axis of the first side connecting arm and the rotation axis of the second side connecting arm, respectively. During the rotation of the flexible screen foldable electronic terminal from unfolding to folding, the first side sliding frame and the second side sliding frame slide away from the rotation axis of the first side connecting arm and the rotation axis of the second side connecting arm, respectively. The flexible support piece of the flexible screen is located on the top surface of the hinge to support the flexible screen when the flexible screen foldable electronic terminal is unfolded. When the flexible screen foldable electronic terminal is folded, it adaptively wraps around the folding bulge in the middle of the flexible screen.

[0016] The first side sliding frame and the first side connecting arm are movably connected to the first side movable support plate, and the second side sliding frame and the second side connecting arm are movably connected to the second side movable support plate. The flexible screen flexible support piece is located above the first side movable support plate and the second side movable support plate when the flexible screen folding electronic terminal is in the flat state, and is located between the first side movable support plate and the second side movable support plate when the flexible screen folding electronic terminal is in the folded state.

[0017] By employing the technical solution of this utility model, a flexible support plate for the flexible screen is incorporated into the hinge. When the flexible screen is unfolded, the flexible support plate is tensioned, providing comprehensive support to the center of the flexible screen and covering the holes on the support plate and the gaps between the support plates. When the flexible screen folds, the support plate folds along with the flexible screen, providing protection outside the center of the flexible screen. Furthermore, the structure of this utility model also eliminates the play between the hinge's central moving frame and the pivot of the push-pull rod when the screen is unfolded, improving the hinge's quality. Attached Figure Description

[0018] Figure 1 This is an exploded view of the structure of an embodiment of the present utility model.

[0019] Figure 2 This is a schematic diagram of the middle support structure of the flexible screen when the solution of this utility model is used in the flattened state.

[0020] Figure 3 This is a front view of the present invention in its flattened state, with the flexible support sheet hidden.

[0021] Figure 4 This is a schematic diagram of the rear of the present invention in a flattened state.

[0022] Figure 5 This is a front view of an embodiment of the present invention in a folded state.

[0023] Figure 6 This is a three-dimensional schematic diagram of an embodiment of the present invention in a folded state.

[0024] Figure 7 This is a schematic diagram of the end of an embodiment of the present invention in a folded state.

[0025] Figure 8 This is a schematic diagram showing the flexible screen folding electronic terminal of this utility model in a flattened state after the flexible screen is hidden. Detailed Implementation

[0026] Referring to the accompanying drawings, the present invention provides a hinge for a flexible screen folding electronic terminal, comprising a first side connecting arm 11 and a second side connecting arm 12, as well as a first side sliding frame 21 and a second side sliding frame 22. The first side connecting arm 11 and the second side connecting arm 12 are rotatably mounted on both sides of a central support 101, which is fixed in the middle shell 200 of the flexible screen folding electronic terminal.

[0027] The first sliding frame 21 and the second sliding frame 22 are slidably connected to the first connecting arm 11 and the second connecting arm 12, respectively. Through the slidable connection, the first sliding frame 21 and the second sliding frame 22 can slide along the rotation axis perpendicular to the first connecting arm 11 and the rotation axis perpendicular to the second connecting arm 12, respectively, when the flexible screen folding electronic terminal is opened and folded. In the attached drawings, reference numerals 110 and 120 are the axes of the first connecting arm 11 and the second connecting arm 12, respectively.

[0028] The mechanism for providing top sliding frames on the first side connecting arm 11 and the second side connecting arm 12 can be a direct fixed sliding frame (first side sliding frame 21, second side sliding frame 22), or a top sliding frame through an intermediate structure. Preferably, the mechanism of the top sliding frame is an elastic top sliding frame mechanism.

[0029] When the hinge is in the unfolded state corresponding to the flexible screen folding electronic terminal, the mechanism of the elastic top sliding frame on the first side connecting arm 11 and the second side connecting arm 12 presses against the first side sliding frame 21 and the second side sliding frame 22 respectively in a direction away from the rotation axis. When the hinge is in the folded state corresponding to the flexible screen folding electronic terminal, the mechanism of the elastic top sliding frame on the first side connecting arm 11 and the second side connecting arm 12 disengages from the first side sliding frame 21 and the second side sliding frame 22 respectively, so that the flexible screen flexible support piece 3 connected to the first side sliding frame 21 and the second side sliding frame 22 is in a suspended state corresponding to the folded state of the flexible screen folding electronic terminal, and can better adapt to the movement when the flexible screen 200 is bent, protecting the middle bending bulge part 201 of the flexible screen 200.

[0030] The hinge also includes a flexible screen support sheet 3, which can be a thin film with a certain degree of toughness supported by a polymer material. The two ends of the flexible screen support sheet 3 are respectively connected to the first side sliding frame 21 and the second side sliding frame 22. When the hinge is in the flattened state corresponding to the flexible screen folding electronic terminal, the support sheet 3 is located on the top surface of the hinge. Furthermore, when the first side sliding frame 21 and the second side sliding frame 22 are pressed together in opposite directions, the flexible screen support sheet 3 is tensioned.

[0031] During the rotation of the flexible screen folding electronic terminal from folding to unfolding, the first side sliding frame 21 and the second side sliding frame 22 slide towards the rotation axis of the first side connecting arm 11 and the rotation axis of the second side connecting arm 12, respectively. During the rotation of the flexible screen folding electronic terminal from unfolding to folding, the first side sliding frame 21 and the second side sliding frame 22 slide away from the rotation axis of the first side connecting arm 11 and the rotation axis of the second side connecting arm 12, respectively. The flexible screen flexible support piece 3 supports the flexible screen 200 on the top surface of the hinge when the flexible screen folding electronic terminal is unfolded, and adaptably wraps around the folding bulge 201 in the middle of the flexible screen when the flexible screen folding electronic terminal is folded.

[0032] The first side sliding frame 21 and the first side connecting arm 11 are movably connected to the first side movable support plate 61, and the second side sliding frame 22 and the second side connecting arm 21 are movably connected to the second side movable support plate 62. The flexible screen flexible support piece 3 is located above the first side movable support plate 61 and the second side movable support plate 92 when the flexible screen folding electronic terminal is in the flat state, and is located between the first side movable support plate 61 and the second side movable support plate 62 when the flexible screen folding electronic terminal is in the folded state.

[0033] The mechanism of the elastic top sliding frame includes a top head 41, a guide structure, and a support spring 42. The guide structure can be a guide groove 43 on the first side connecting arm 11 and the second side connecting arm 12. The top head 41 and the guide groove 43 are in a sliding guide engagement, and the guide groove 43 is perpendicular to the rotation axis of the first side connecting arm 11 / second side connecting arm 12. In this embodiment, the support spring 42 is a C-shaped wire spring to reduce thickness. The two ends of the C-shaped spring are connected to the first side connecting arm 11 / second side connecting arm 12 via rivets and the top head 41, respectively.

[0034] The elastic top sliding frame mechanism has multiple top heads 41 arranged in parallel to balance and tighten the first side sliding frame 21 / second side sliding frame 22 when the corresponding flexible screen folding electronic terminal is in the flattened state, thereby improving the uniformity of the tightening force distribution, improving the tightening effect, and further improving the flatness of the flexible support sheet 3.

[0035] The head of the top 41 is an arc head. The first side sliding frame 21 and the second side sliding frame 22 are provided with arc grooves corresponding to the arc head. When tightening the sliding frame, the arc head is inserted into the groove 42 to improve the tightening effect.

[0036] The hinge is also provided with a first side push-pull link 51 and a second side push-pull link 52. The first side push-pull link 51 and the second side push-pull link 52 are rotatably installed on both sides of the central support 100. The first side sliding frame 21 and the second side sliding frame 12 are rotatably connected to the first side push-pull link 51 and the second side push-pull link 52, respectively.

[0037] The first side push-pull link 51 and the second side push-pull link 52 are connected to the central support 100 through a virtual center rotation connection structure 50 composed of an arc slider and an arc guide groove. The rotation center is located above the support surface height of the flexible screen 200 when the flexible screen folding electronic terminal is unfolded.

[0038] A synchronously rotating counter-rotating connection structure 10 is connected between the first side connecting arm 11 and the second side connecting arm 12, which can be a gear meshing connection structure. The first side sliding frame and the second side sliding frame are respectively connected to the housings 301 and 302 located on both sides of the central support of the flexible screen folding electronic terminal, so that the housings 301 and 302 on both sides rotate synchronously in opposite directions. The flexible screen is set on the inner side of the flexible screen folding electronic terminal, and a flexible screen support plate is set on the housings 301 and 302.

[0039] The above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the protection scope of the present utility model.

[0040] It should be noted that the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. The terms "installed," "set," "equipped with," "connected," "linked," and "sleeve" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In the description of this utility model, it should be understood that the terms "one end," "the other end," "outer side," "inner side," "horizontal," "end," "length," "outer end," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first" and "second" are also used only for the sake of brevity in description and do not indicate or imply relative importance.

Claims

1. A hinge for a flexible folding electronic terminal, comprising a first side connecting arm and a second side connecting arm, a first side sliding frame and a second side sliding frame, wherein the first side connecting arm and the second side connecting arm are rotatably mounted on both sides of a central support, and the first side sliding frame and the second side sliding frame are slidably connected to the first side connecting arm and the second side connecting arm, respectively, and the first side sliding frame and the second side sliding frame can slide along a rotation axis perpendicular to the first side connecting arm and a rotation axis perpendicular to the second side connecting arm, respectively, when the flexible folding electronic terminal is opened and folded, through the slidable connection; characterized in that, The first side connecting arm and the second side connecting arm are respectively provided with a top sliding bracket mechanism. When the hinge is in the flattened state corresponding to the flexible screen foldable electronic terminal, the top sliding bracket mechanism on the first side connecting arm and the second side connecting arm respectively presses the first side sliding bracket and the second side sliding bracket in a direction away from the rotation axis. When the hinge is in the folded state corresponding to the flexible screen foldable electronic terminal, the top sliding bracket mechanism on the first side connecting arm and the second side connecting arm respectively disengages from the first side sliding bracket and the second side sliding bracket, or the force pressing the first side sliding bracket and the second side sliding bracket in a direction away from the rotation axis is less than the force pressing the first side sliding bracket and the second side sliding bracket when the flexible screen foldable electronic terminal is in the flattened state. The hinge is also provided with a flexible screen flexible support piece. The two ends of the flexible screen flexible support piece are respectively connected to the first side sliding frame and the second side sliding frame. When the hinge is in the flattened state corresponding to the flexible screen folding electronic terminal, the flexible screen flexible support piece is located on the top surface of the hinge. When the first side sliding frame and the second side sliding frame are pressed in opposite directions, the flexible screen flexible support piece is tensioned.

2. The hinge for a flexible folding electronic terminal as described in claim 1, characterized in that, The mechanism of the top sliding frame is an elastic top sliding frame mechanism.

3. The hinge for a flexible folding electronic terminal as described in claim 2, characterized in that, The mechanism of the elastic top sliding frame includes a top head, a guide structure, and a support spring.

4. The hinge for a flexible folding electronic terminal as described in claim 3, characterized in that, The support spring is a C-shaped wire spring, and the two ends of the C-shaped wire spring are connected to the top head and the connecting arm, respectively.

5. The hinge for a flexible folding electronic terminal as described in claim 1, characterized in that, The mechanism of the top sliding frame has multiple top heads arranged in parallel to balance and tighten the top sliding frame when the corresponding flexible screen folding electronic terminal is in a flattened state.

6. A hinge for a flexible screen folding electronic terminal as described in claim 3, 4, or 5, characterized in that, The head of the top is an arc head, and the first and second side sliding frames are provided with arc grooves corresponding to the arc head. When the sliding frame is tightened, the arc head is pushed into the groove.

7. The hinge for a flexible folding electronic terminal as described in claim 1, characterized in that, The hinge is also provided with a first side push-pull link and a second side push-pull link. The first side push-pull link and the second side push-pull link are rotatably installed on both sides of the central support. The first side sliding frame and the second side sliding frame are rotatably connected to the first side push-pull link and the second side push-pull link, respectively. The push-pull link and the central support are connected by a virtual center rotation connection structure of a circular arc slider and a circular arc guide groove.

8. The hinge for a flexible folding electronic terminal as described in claim 1, characterized in that, The first side connecting arm and the second side connecting arm are connected by a synchronous reverse rotation connection structure.

9. A hinge for a flexible folding electronic terminal as described in claim 1, characterized in that, The first and second side sliding frames are respectively connected to the housings located on both sides of the central support of the flexible screen folding electronic terminal; during the rotation process of the flexible screen folding electronic terminal from folding to flattening, the first and second side sliding frames slide towards the rotation axis of the first and second side connecting arms respectively; during the rotation process of the flexible screen folding electronic terminal from flattening to folding, the first and second side sliding frames slide away from the rotation axis of the first and second side connecting arms respectively. The flexible support sheet supports the flexible screen on the top surface of the hinge when the flexible screen folding electronic terminal is unfolded, and adaptably wraps around the folding bulge in the middle of the flexible screen when the flexible screen folding electronic terminal is folded.

10. A hinge for a flexible folding electronic terminal as described in claim 1, characterized in that, The first side sliding frame and the first side connecting arm are movably connected to the first side movable support plate, and the second side sliding frame and the second side connecting arm are movably connected to the second side movable support plate. The flexible screen flexible support piece is located above the first side movable support plate and the second side movable support plate when the flexible screen folding electronic terminal is in the flat state, and is located between the first side movable support plate and the second side movable support plate when the flexible screen folding electronic terminal is in the folded state.

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