Inward-folding flexible screen electronic terminal with hinge with reset function

Abstract

This utility model provides a hinge with a reset function for an inward-folding flexible screen electronic terminal, comprising a rotating connecting arm, a sliding mounting block, and a swing arm. The swing arm and the sliding mounting block are rotatably connected by a virtual rotating shaft mechanism composed of an arc guide rail and an arc slider. The hinge includes a reset elastic component for the swing arm, the reset direction being such that, in the closed state, the swing arm tends to rotate outward. The hinge also includes a limit structure, ensuring that, under the action of the reset elastic component, the component fixedly connected to the swing arm can be pressed against the supporting structure. This utility model utilizes the elastic reset component to combine the swing arm and the sliding mounting block in the opening direction, preventing the swing arm from swinging inward due to gaps between parts or vibration (such as from a drop) in the closed state, thus avoiding pressure on the bulging part of the middle side of the folded flexible screen and eliminating the potential for damage to the flexible screen.

Description

Technical Field

[0001] This utility model relates to a hinge for use in an inward-folding flexible screen electronic terminal, which can be a mobile phone, laptop computer, etc. Background Technology

[0002] In the hinge of an inward-folding flexible screen electronic terminal, such as an inward-folding flexible screen mobile phone, there are a rotating connecting arm, a sliding mounting block, and a swing arm. The sliding mounting block and the rotating connecting arm are slidably connected, and the rotating connecting arm is rotatably connected to the central support. The sliding mounting block is used to connect with the housing on the same side (left or right) of the inward-folding flexible screen electronic terminal. One end of the swing arm is rotatably connected to the central support, and the other end of the swing arm is rotatably connected to the sliding mounting block, forming a multi-bar mechanism. This mechanism allows the sliding mounting block to slide during the opening and closing of the inward-folding flexible screen electronic terminal. When closed, it makes way for the bulging shape of the central side of the folded flexible screen.

[0003] There is a type of multi-link hinge where the swing arm and sliding mounting block are connected by a virtual rotating shaft mechanism consisting of an arc-shaped guide rail and an arc-shaped slider. When the inward-folding flexible screen electronic terminal is in the closed state, the swing arm may swing inward due to gaps between parts or vibration (such as from a drop), pressing on the bulging part of the middle side of the folded flexible screen and causing damage to the flexible screen. Utility Model Content

[0004] The purpose of this invention is to provide a hinge with a reset function for an inward-folding flexible screen electronic terminal, which can eliminate the problem mentioned in the background art where the swing arm swings inward and damages the flexible screen in the closed state. To this end, this invention adopts the following technical solution: A hinge with a reset function for an inward-folding flexible screen electronic terminal includes a rotating connecting arm, a sliding mounting block, and a swing arm. The sliding mounting block and the rotating connecting arm are slidably connected, the rotating connecting arm is rotatably connected to a central support, one end of the swing arm is rotatably connected to the central support, and the other end of the swing arm is rotatably connected to the sliding mounting block. The swing arm and the sliding mounting block are rotatably connected by a virtual rotating shaft mechanism composed of an arc guide rail and an arc slider. The hinge is characterized by having a reset elastic component for the swing arm, the reset direction being such that the swing arm tends to rotate outward in the closed state. The hinge also has a limit structure, allowing the component fixedly connected to the swing arm to be pressed against the support structure under the action of the reset elastic component.

[0005] Based on the above technical solutions, the present invention may also adopt the following further technical solutions, or combine these further technical solutions: The elastic reset component is disposed between the sliding mounting block and the swing arm.

[0006] The elastic reset part is a torsion spring. The torsion spring includes connecting arms at both ends and a spring coil in the middle. The spring coil is mounted on a connecting post on the sliding mounting block. One connecting arm is connected to the sliding mounting block, and the other connecting arm is connected to the swing arm.

[0007] The limiting structure is disposed on the rotating connecting arm, and the swing arm is provided with a structure that cooperates with the limiting structure.

[0008] The structure that cooperates with the limiting structure is a limiting hole or limiting groove that adapts to the rotation trajectory of the swing arm. The limiting structure is columnar and inserted into the limiting hole or limiting groove. The inner wall of the limiting hole or the inner wall of the limiting groove abuts against the limiting structure.

[0009] The swing arm is connected to the intermediate support via a second virtual rotating shaft mechanism consisting of a second arc slider and a second arc guide rail. The center of the second virtual rotating shaft mechanism is higher than the support surface of the flexible screen in the flattened state.

[0010] In the application scheme of this utility model, a virtual rotating shaft mechanism consisting of an arc guide rail and an arc slider is used to rotate the swing arm and the sliding mounting block. The elastic reset component can be used to combine the swing arm and the sliding mounting block together in the opening direction. This avoids the swing arm from swinging inward due to gaps between parts or vibration (such as from a drop) in the closed state, which would press on the bulging part of the middle side of the folded flexible screen and eliminate the potential for damage to the flexible screen. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of an embodiment of the hinge provided by this utility model.

[0012] Figure 2 The hinge embodiment provided by this utility model is shown in a top view when unfolded.

[0013] Figure 3 and Figure 4 They are respectively Figure 2 AA section view and BB section view.

[0014] Figure 5 To be in the closed state along Figure 2 A sectional view of the BB section line.

[0015] Figure 6 This is a top view of the hinge embodiment provided by this utility model when closed.

[0016] Figure 7 for Figure 6 CC section view.

[0017] Figure 8This is a cross-sectional view of an inwardly folding flexible screen electronic terminal using the hinge of this utility model when it is in the closed state.

[0018] Figure 9 This is a schematic diagram of the central structure of the inward-folding flexible screen electronic terminal using the hinge of this utility model when it is in a flattened state. Detailed Implementation

[0019] Referring to the accompanying drawings, this utility model provides a hinge for an inward-folding flexible screen electronic terminal with a reset function, including a rotating connecting arm 1, a sliding mounting block 2, and a swing arm 3. The sliding mounting block 2 is slidably connected to the rotating connecting arm 1 via a sliding guide structure. The rotating connecting arm 1 is rotatably connected to the central support 100 via a shaft 11. The first end of the swing arm 3 is rotatably connected to the central support 100, and the second end of the swing arm 3 is rotatably connected to the sliding mounting block 2. The swing arm 3 and the sliding mounting block 2 are rotatably connected by a first virtual rotating shaft mechanism composed of an arc groove 21 and an arc slider 31. The second end of the swing arm 3 is provided with the arc slider 31. The sliding mounting block has an arc groove, the center C1 of which is located outside the sliding mounting block 2 and the swing arm 3. Unlike the traditional solid shaft connection, this connection structure allows the swing arm 3 to rotate from the open to the closed state with a smaller angle (a larger β value, see Figure 5 This allows for a larger screen space. The sliding mounting block 2 is provided with a connection structure (such as screw connection holes) for connecting with the inwardly folded flexible screen electronic terminal housing 200 on the same side.

[0020] The hinge is provided with a reset elastic component 4 for the swing arm 3, and the reset direction is such that in the closed state (see...) Figure 8 As shown, when applied to an inward-folding flexible screen electronic terminal (the terminal is in a closed state), the swing arm 4 has a tendency to rotate outward, and the hinge is also provided with a limit structure, so that under the action of the reset elastic component 4, the component fixedly connected to the swing arm 3 can be pressed against the support structure. Figures 3-5 and Figure 7 and Figure 8 Taking the left-hand swing arm as an example, the outward rotation trend is a counter-clockwise rotation trend, such as... Figure 8 As shown, for the connection of the swing arm 3 on the sliding connecting block 2, even without the positioning condition of hole-shaft cooperation, the swing arm 3 will not rotate inward and press against the flexible screen 300 that bulges to the side.

[0021] Preferably, the elastic reset component 4 is disposed between the sliding mounting block 2 and the swing arm 3, which simplifies the structure and facilitates the concealed arrangement of the elastic element, reducing or even eliminating the need for additional volume. The elastic reset component 4 is preferably a torsion spring.

[0022] The torsion spring includes connecting arms 41 and 42 at both ends and a spring coil 43 in the middle. The spring coil 43 is mounted on a connecting post 22 on the sliding mounting block 2. One connecting arm 41 is connected to the sliding mounting block 2, and the other connecting arm 42 is connected to the swing arm 3.

[0023] The limiting structure 12 is disposed on the rotating connecting arm 1, and the swing arm 3 is provided with a structure that cooperates with the limiting structure. The structure that cooperates with the limiting structure is a limiting slot 32 adapted to the rotation trajectory of the swing arm 3. The limiting structure 12 is columnar and inserted into the limiting slot 32, and the inner wall 321 of the limiting slot abuts against the limiting structure 12.

[0024] The swing arm 3 is connected to the intermediate support 100 via a second virtual rotating shaft mechanism formed by a second arc slider 33 and a second arc guide rail 101. The center C2 of the second virtual rotating shaft mechanism is higher than the support surface 301 of the flexible screen 300 in the flattened state. This further improves the position of the swing arm 3 when the inward-folding flexible screen electronic terminal is closed, thus enhancing the obstacle avoidance effect.

[0025] For the hinge of the inward-folding flexible screen electronic terminal, a set of the above-mentioned motion structure is provided on both sides of the middle support 100. A synchronous reverse rotation connection mechanism is connected between the rotating connecting arms 1 on both sides to realize the synchronous reverse movement of the left and right motion structures. This synchronous reverse rotation connection mechanism can adopt a gear transmission mechanism.

[0026] Flexible screen support plates 5 are installed on the hinges on both sides of the intermediate support 100. The left and right flexible screen support plates 5 are respectively connected to the sliding mounting blocks 2 on the same side through a rotating connection structure, and connected to the rotating connecting arms 1 on the same side through a movable connection structure with guide grooves and pins. Alternatively, the flexible screen support plates 5 can be directly combined with the swing arms 3.

[0027] 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.

[0028] 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.

[0029] 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 an inward-folding flexible screen electronic terminal with a reset function, comprising a rotating connecting arm, a sliding mounting block, and a swing arm; the sliding mounting block and the rotating connecting arm are slidably connected; the rotating connecting arm is rotatably connected to a central support; one end of the swing arm is rotatably connected to the central support; and the other end of the swing arm is rotatably connected to the sliding mounting block; wherein the swing arm and the sliding mounting block are rotatably connected by a virtual rotating shaft mechanism composed of an arc-shaped guide rail and an arc-shaped slider; characterized in that... The hinge is provided with a reset elastic component for the swing arm. The reset direction is such that the swing arm tends to rotate outward in the closed state. The hinge is also provided with a limit structure so that the component fixedly connected to the swing arm can be pressed against the support structure under the action of the reset elastic component.

2. The hinge with reset function in the inward-folding flexible screen electronic terminal as described in claim 1, characterized in that, The reset elastic component is disposed between the sliding mounting block and the swing arm.

3. The hinge with reset function in the inward-folding flexible screen electronic terminal as described in claim 1, characterized in that, The reset elastic component is a torsion spring.

4. The hinge with reset function in the inward-folding flexible screen electronic terminal as described in claim 3, characterized in that, The torsion spring includes connecting arms at both ends and a spring coil in the middle. The spring coil is mounted on a connecting post on the sliding mounting block. One connecting arm is connected to the sliding mounting block, and the other connecting arm is connected to the swing arm.

5. The hinge with reset function in the inward-folding flexible screen electronic terminal as described in claim 1, characterized in that, The limiting structure is disposed on the rotating connecting arm, and the swing arm is provided with a structure that cooperates with the limiting structure.

6. The hinge with reset function in the inward-folding flexible screen electronic terminal as described in claim 1, characterized in that, The limiting structure is a limiting hole or limiting groove that adapts to the rotation trajectory of the swing arm. The limiting structure is columnar and inserted into the limiting hole or limiting groove. The inner wall of the limiting hole or the inner wall of the limiting groove abuts against the limiting structure.

7. The hinge with reset function in the inward-folding flexible screen electronic terminal as described in claim 1, characterized in that, The swing arm is connected to the central support via a second virtual rotating shaft mechanism consisting of a second arc slider and a second arc guide rail. The center of the second virtual rotating shaft mechanism is higher than the support surface of the flexible screen in the flattened state.

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