Inward folding flexible screen electronic terminal hinge

Abstract

The utility model provides a kind of inner folding flexible screen electronic terminal hinge, middle part shell is liftable with middle part fixed base connection, it is also set to drive the structure cooperation of middle part shell lifting, and in the hinge unfolding process, the middle part shell can be driven to descend, let out its top occupies the first position of middle part support part side when the hinge is in folded state, when the hinge unfolds, the neck part portion above the top of middle part shell of rotating arm enters the first position originally occupied by the top of middle part shell, in the hinge folding process, the neck part portion of rotating arm rotates upward, the middle part shell rises, and its top enters the first position.The utility model can consider the strength of rotating arm, ensure the strength of inner folding flexible screen electronic terminal in this part, also ensure the overlap amount between two side housings and middle part housing when folded state, the inside of movable support plate when unfolding state can also be overlapped on middle part support structure and avoid the influence on thin design of inner folding flexible screen electronic terminal.

Description

Technical Field

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

[0002] In an inward-folding flexible screen electronic terminal, the two side shells are connected by hinges, allowing them to be flattened and folded. Flexible screen support plates are installed on the inner sides of the two side shells, and the flexible screen is laid on the inner side of the inward-folding flexible screen electronic terminal. In one structure, a left-side movable support plate and a right-side movable support plate supporting the flexible screen are also connected to the hinges. When the inward-folding flexible screen electronic terminal is folded, the left-side and right-side movable support plates rotate at a larger angle (over 90°) compared to the left and right side shells, creating space at the bottom for the folded bulge in the middle of the flexible screen. One approach involves setting up a fixed support structure within the shell of the inward-folding flexible screen electronic terminal, with the flexible screen's central support structure. However, to ensure the flexible screen is supported on a fully planar surface (i.e., with as few holes and as narrow as possible on the plane supporting the flexible screen in the center), and to ensure that the left and right movable support plates overlap with the central support structure in the flattened state, as well as to guarantee a certain amount of overlap between the two side shells and the central shell in the folded state, the thickness of the rotating arm in the hinge will be affected. This will impact the strength of the inward-folding flexible screen electronic terminal in this area, and will also limit the thin design of mobile phones and laptops. Utility Model Content

[0003] The purpose of this utility model is to provide a hinge for an inward-folding flexible screen electronic terminal that takes into account the strength of the rotating arm, ensuring the strength of the inward-folding flexible screen electronic terminal in this part, while also ensuring the overlap between the two side shells and the middle shell in the folded state, and that the inner side of the movable support plate can overlap the middle support structure in the flattened state, and avoiding the impact on the thin design of the inward-folding flexible screen electronic terminal. To this end, this utility model adopts the following technical solution: A hinge for an inward-folding flexible screen electronic terminal includes a central fixed base, a central outer shell, a left-side rotating mechanism, and a right-side rotating mechanism. The left-side and right-side rotating mechanisms are each equipped with one or more rotating arms rotatably connected to the central fixed base. The central outer shell is located outside the central fixed base. The central outer shell is vertically and flexibly connected to the central fixed base. The hinge also includes a structure that drives the central outer shell to rise and fall. During hinge unfolding, the central outer shell can be driven to descend, freeing up a first position on the side of the central support portion that was occupied when the hinge is folded. When the hinge is unfolded, the neck portion of the rotating arm above the top of the central outer shell enters the first position originally occupied by the top of the central outer shell. During hinge folding, the neck portion of the rotating arm rotates upward, the central outer shell rises, and its top enters the first position, allowing the top of the central outer shell to enter the bottom between the left and right shells of the inward-folding flexible screen electronic terminal when the terminal is folded.

[0004] Based on the above technical solution, the present invention may also adopt the following further technical solutions, or combine these further technical solutions: The structure that drives the lifting and lowering of the central housing includes a pressing fit between the neck portion and the top of the central housing during the flattening process, and an upward reset elastic element located between the central housing and the central fixed seat.

[0005] A countersunk hole is provided on the central fixing base, and a connecting part is provided on the central outer shell. The connecting part is connected to the elastic element support component through the countersunk hole. The top end of the elastic element support component is located in the top recessed part of the countersunk hole, and the reset elastic element is connected between the top end of the elastic element support component and the bottom of the recessed part.

[0006] The elastic element is a conical spring, and the elastic element support component is threadedly connected to the connection part.

[0007] The structure that drives the lifting and lowering of the middle outer shell includes an eccentric drive structure on the rotating arm, and the middle outer shell is provided with a groove for the eccentric drive structure to be inserted and movably connected.

[0008] The inner wall of the central outer shell is provided with guide columns, and the central fixed seat is provided with a lifting guide structure that cooperates with the guide columns.

[0009] The rotating mechanism includes a first rotating arm and a second rotating arm. The rotating mechanism also includes a sliding frame, which has a portion that connects to the inwardly folding flexible screen electronic terminal housing on the same side. The first rotating arm and the sliding frame are slidably connected, allowing the sliding frame to slide along a rotation axis perpendicular to the rotating arm. The two ends of the second rotating arm are rotatably connected to the sliding frame and the central fixed seat, respectively. The rotating structure also includes a flexible screen rotating support plate, which is rotatably connected to the second rotating arm and movably connected to the first rotating arm, or the rotating support plate is fixedly connected to the second rotating arm.

[0010] The structure for driving the lifting and lowering of the central housing includes a pressing fit between the neck portion of the first rotating arm and the top of the central housing during the flattening process, and an upward reset elastic element located between the central housing and the central fixed seat; or, the structure for driving the lifting and lowering of the central housing includes an eccentric drive structure on the first rotating arm, and the central housing is provided with a groove that is inserted into and movably connected to the eccentric drive structure.

[0011] The top surface of the central fixed base is fixed to the central support plate of the flexible screen. The right side of the left flexible screen rotating support plate and the left side of the right flexible screen rotating support plate are respectively located on the left and right sides of the central support plate of the flexible screen when the hinge of the inward-folding flexible screen electronic terminal is in the flattened state. The second rotating arm and the sliding frame are rotatably connected by a first virtual rotating shaft mechanism composed of an arc groove and an arc guide rail. The second rotating arm and the central fixed base are rotatably connected by a second virtual rotating shaft mechanism composed of an arc guide rail and an arc slider. The center of the first virtual rotating shaft mechanism is located outside the sliding frame and the second rotating arm. The center of the second virtual rotating shaft mechanism is higher than the support surface of the flexible screen in the flattened state, so that when the inward-folding flexible screen electronic terminal is folded, the bottom of the central bend of the flexible screen is located above the central support surface of the flexible screen and does not sink into the central support base and the central shell.

[0012] A synchronous reverse rotation connection mechanism is provided between the rotating mechanism on the left and the rotating mechanism on the right.

[0013] By adopting the technical solution of this utility model, the present invention can solve the problem of ensuring the thickness of the rotating arm by using the lifting and lowering of the middle shell. It utilizes the fact that the thickness of the left and right shells is thicker than that of the middle structure to provide lifting and lowering space for the middle shell when unfolded, without affecting the thin design of the inward folding flexible screen electronic terminal. Furthermore, even when the structure in which the inner side of the movable support plate overlaps the middle support structure in the unfolded state is adopted, it can still ensure that the rotating arm obtains thickness compensation space when it is lowered. Moreover, by utilizing the different postures of the rotating arm in the folded and unfolded states, it can ensure that the middle shell rises to the position where it overlaps with the two side shells in the folded state. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the inward-folding flexible screen electronic terminal hinge of this utility model.

[0015] Figure 2 for Figure 1 Exploded view of the embodiment shown.

[0016] Figure 3 for Figure 1 The illustrated embodiment is shown as a cross-sectional view of the second rotating arm in its flattened state.

[0017] Figure 4 for Figure 1 The illustrated embodiment is shown in a cross-sectional view at the first rotating arm in a flattened state.

[0018] Figure 5 for Figure 1 The illustrated embodiment is shown as a cross-sectional view of the conical spring in its flattened state.

[0019] Figure 6 A schematic diagram illustrating the working process of the second solution for driving the lifting and lowering of the central outer shell.

[0020] Figure 7 An exploded view of the second solution for driving the lifting and lowering of the central outer shell.

[0021] Figure 8 This is an analytical diagram illustrating the technical effect of this utility model.

[0022] Figure 9 This is a comparison diagram illustrating the technical effects of this utility model, where the left side shows the effect of this utility model, and the right side shows the defects when this utility model is not used. Detailed Implementation

[0023] Referring to the accompanying drawings, this utility model provides a hinge for an inward-folding flexible screen electronic terminal, including a central fixed base 100, a central outer shell 200, a rotating mechanism on the left side, and a rotating mechanism on the right side. Both the left-side and right-side rotating mechanisms include a first rotating arm 1 and a second rotating arm 2, which are rotatably connected to the central fixed base 100. The central outer shell 200 is located outside the central fixed base 100 and is vertically and vertically connected to the central fixed base 100. The hinge also includes a structure that drives the central outer shell to move up and down. During the hinge's flattening process (i.e., during the flattening process of the inward-folding flexible screen electronic terminal), the central outer shell 200 can be driven to descend, allowing its... The top 201 occupies the first position on the side of the middle support portion when the hinge is in the folded state (i.e., the inward-folding flexible screen electronic terminal is in the folded state). When the hinge is unfolded, the neck portions 11 and 21 of the first rotating arm 1 and the second rotating arm 2 above the top 201 of the middle shell enter the first position originally occupied by the top 201 of the middle shell. During the hinge folding process, the neck portions 11 and 21 of the first rotating arm 1 and the second rotating arm 2 rotate upward, the middle shell 200 rises, and its top 201 enters the first position, so that the top 201 of the middle shell can enter the bottom between the left shell 301 and the right shell 302 of the inward-folding flexible screen electronic terminal when the inward-folding flexible screen electronic terminal is in the folded state.

[0024] Both the left-side and right-side rotating mechanisms include a sliding frame 3. The sliding frame 3 has a connection point with the inward-folding flexible screen electronic terminal housing on the same side, such as a screw connection point. The left and right sliding frames are respectively connected to the left housing 301 and the right housing 302. The first rotating arm 1 and the sliding frame 3 are slidably connected. The sliding frame 3 is provided with a slide rail that cooperates with the left first rotating arm 1. The sliding frame 3 can slide along a direction perpendicular to the rotation axis of the rotating arm. The two ends of the second rotating arm 2 are rotatably connected to the sliding frame 3 and the central fixed base 100, respectively.

[0025] The rotating mechanism on the left and the rotating mechanism on the right both include a flexible screen rotating support plate 4, which is rotatably connected to the second rotating arm 2 and movably connected to the first rotating arm 1.

[0026] The top surface of the central fixed base 100 is fixed with the central support plate 101 of the flexible screen. The right side 41 of the left flexible screen rotating support plate 4 and the left side of the right flexible screen rotating support plate 4 are respectively located on the left side 105 and the right side of the central support plate 101 of the flexible screen when the hinge of the inward folding flexible screen electronic terminal is in the flattened state.

[0027] The first rotating arm 1 is rotatably connected to the central fixed seat 100 via a solid shaft 10. In this embodiment, the second rotating arm 2 and the sliding frame 3 are rotatably connected by a first virtual rotating shaft mechanism composed of an arc slide groove 22 and an arc guide rail 32. The arc slide groove 22 is provided on the second rotating arm 2, and the arc guide rail 32 is provided on the sliding frame. Its center C1 is located outside the sliding frame 3 and the second rotating arm 2. Unlike the traditional solid shaft connection, this connection structure can achieve a larger screen space. The second rotating arm 2 and the central fixed seat 100 are rotatably connected by a second virtual rotating shaft mechanism composed of an arc slide groove 23 and an arc guide rail 102. The center C2 of the second virtual rotating shaft mechanism is higher than the support surface of the flexible screen in the flattened state. When the flexible screen electronic terminal is in the folded state, the bottom of the bending in the middle of the flexible screen 400 is located above the middle support surface of the flexible screen (the top surface of the middle support plate 101) and does not sink into the central fixed seat 100 and the middle outer shell 200.

[0028] In a preferred embodiment of the structure for driving the lifting and lowering of the central outer shell, the neck portion 11 of the first rotating arm 1 is used as the pressing portion. During the hinge flattening process, when the first rotating arm 1 rotates in the flattening direction to contact the top 201 of the central outer shell, its continued rotation generates a pressing fit between the neck portion 11 and the top 201 of the central outer shell, causing the central outer shell 200 to be pressed down (at this time, the reset elastic element described below is compressed and stores energy). Thus, the first rotating arm 1 gains space to increase or maintain its thickness in the downward direction. Similarly, the second rotating arm 2 also gains space to increase or maintain its thickness downward. An elastic element 5 for upward reset of the central fixed seat 100 is provided between the central outer shell 200 and the central fixed seat 100. When the hinge folds, the first rotating arm 1 and the second rotating arm 2 rotate and lift, and the central outer shell 200 resets upward under the action of the elastic element 5. In a preferred embodiment, a countersunk hole 103 is provided on the central fixing base 100. The connecting part 202 of the central housing 200 is connected to the elastic element support component 6 through the countersunk hole 103. The top end 61 of the elastic element support component 6 is located in the top recessed part 104 of the countersunk hole 103. The elastic element 5 is connected between the top end 61 of the elastic element support component 6 and the bottom of the recessed part 104. The elastic element 5 can be a conical spring. The elastic element support component 6 can be threadedly connected to the connecting part 202 to improve the disassembly and assembly efficiency and support and reset performance.

[0029] The inner wall of the middle outer shell 200 is provided with a guide post, which can be made of the column-shaped connecting part 202. The middle fixing seat 100 is provided with a guide hole that cooperates with the guide post for lifting and lowering. The guide hole can also be made of the countersunk hole 103.

[0030] In a preferred embodiment of the structure for driving the lifting and lowering of the central housing, the structure includes an eccentric drive structure, such as a pin 12, on the first rotating arm 1, and the central housing 200 is provided with a groove 203 for the eccentric drive structure to be inserted and movably connected. Figure 6 As shown, the middle outer casing 200 is raised and lowered by pin 12.

[0031] A synchronous reverse rotation connection mechanism is provided between the rotating mechanism on the left and the rotating mechanism on the right to realize the synchronous reverse movement of the left and right moving structures. This synchronous reverse rotation connection mechanism can be a gear transmission mechanism 7, preferably connected between the first rotating arm 1 on the left and the first rotating arm 1 on the right.

[0032] like Figure 8 As shown, through the structure of this utility model, in this embodiment, the middle outer shell 200 can have a 0.4mm downward stroke, that is, the neck portions 11 and 21 of the first rotating arm 1 and the second rotating arm 2, with the hinge flattened state as a reference state, obtain a lower thickness compensation of 0.4mm, which can ensure that its strength meets the requirements (e.g. Figure 9 As shown, when the inward-folding flexible screen electronic terminal is unfolded, the space 204 below the bottom of the middle outer shell 200 is itself unused space (in this embodiment, the height of the usable space 204 is 0.4mm). However, in the folded state, the top 201 of the middle outer shell 200 can enter the bottom between the left outer shell 301 and the right outer shell 302 of the inward-folding flexible screen electronic terminal. Figure 8 As shown in part D, if the thickness of the neck parts 11 and 21 is simply increased while the middle outer shell 200 is fixedly installed, then in the folded state, a gap D1 will be created between the top 201 of the middle outer shell 200 and the lower ends of the left and right outer shells, revealing the internal structure.

[0033] like Figure 9 As shown, if the traditional solution is adopted, in order to avoid the impact, the thickness of the neck parts 11 and 21 of the first rotating arm 1 and the second rotating arm 2 can only be reduced, which will affect the structural strength of the part.

[0034] 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.

[0035] 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.

[0036] 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, comprising a central fixed base, a central outer shell, a rotating mechanism located on the left side, and a rotating mechanism located on the right side, wherein the rotating mechanism on the left side and the rotating mechanism on the right side are respectively provided with one or more rotating arms rotatably connected to the central fixed base, and the central outer shell is located outside the central fixed base, characterized in that, The central outer shell is vertically and vertically connected to the central fixed base. The hinge is also equipped with a structure that drives the central outer shell to rise and fall. During the hinge's unfolding process, the central outer shell can be driven to descend, freeing up the first position on the side of the central support portion that its top occupies when the hinge is in the folded state. When the hinge is unfolded, the neck portion of the rotating arm located above the top of the central outer shell enters the first position originally occupied by the top of the central outer shell. During the hinge's folding process, the neck portion of the rotating arm rotates upward, the central outer shell rises, and its top enters the first position. This allows the top of the central outer shell to enter the bottom between the left and right shells of the inward-folding flexible screen electronic terminal when the inward-folding flexible screen electronic terminal is in the folded state.

2. The inward-folding flexible screen electronic terminal hinge as described in claim 1, characterized in that, The structure that drives the lifting and lowering of the central housing includes a pressing fit between the neck portion and the top of the central housing during the flattening process, and an upward reset elastic element located between the central housing and the central fixed seat.

3. The inward-folding flexible screen electronic terminal hinge as described in claim 2, characterized in that, A countersunk hole is provided on the central fixing base, and a connecting part is provided on the central outer shell. The connecting part is connected to the elastic element support component through the countersunk hole. The top end of the elastic element support component is located in the top recessed part of the countersunk hole, and the reset elastic element is connected between the top end of the elastic element support component and the bottom of the recessed part.

4. The inward-folding flexible screen electronic terminal hinge as described in claim 3, characterized in that, The elastic element is a conical spring, and the elastic element support component is threadedly connected to the connection part.

5. The inward-folding flexible screen electronic terminal hinge as described in claim 1, characterized in that, The structure that drives the lifting and lowering of the middle outer shell includes an eccentric drive structure on the rotating arm, and the middle outer shell is provided with a groove for the eccentric drive structure to be inserted and movably connected.

6. The inward-folding flexible screen electronic terminal hinge as described in claim 1, characterized in that, The inner wall of the central outer shell is provided with guide columns, and the central fixed seat is provided with a lifting guide structure that cooperates with the guide columns.

7. The inward-folding flexible screen electronic terminal hinge as described in claim 1, characterized in that, The rotating mechanism includes a first rotating arm and a second rotating arm. The rotating mechanism also includes a sliding frame. The sliding frame has a part that is connected to the inwardly folding flexible screen electronic terminal housing on the same side. The first rotating arm and the sliding frame are slidably connected, so that the sliding frame can slide along the rotation axis perpendicular to the rotating arm. The two ends of the second rotating arm are rotatably connected to the sliding frame and the middle fixed seat, respectively. The rotating structure is further provided with a flexible screen rotating support plate, which is rotatably connected to the second rotating arm and movably connected to the first rotating arm, or the rotating support plate is fixedly connected to the second rotating arm.

8. The inward-folding flexible screen electronic terminal hinge as described in claim 7, characterized in that, The structure for driving the lifting and lowering of the central housing includes a pressing fit between the neck portion of the first rotating arm and the top of the central housing during the flattening process, and an upward reset elastic element located between the central housing and the central fixed seat; or, the structure for driving the lifting and lowering of the central housing includes an eccentric drive structure on the first rotating arm, and the central housing is provided with a groove that is inserted into and movably connected to the eccentric drive structure.

9. The inward-folding flexible screen electronic terminal hinge as described in claim 7, characterized in that, The top surface of the central fixed base is fixed to the central support plate of the flexible screen. The right side of the left flexible screen rotating support plate and the left side of the right flexible screen rotating support plate are respectively located on the left and right sides of the central support plate of the flexible screen when the hinge of the inward folding flexible screen electronic terminal is in the flattened state. The second rotating arm and the sliding frame are rotatably connected by a first virtual rotating shaft mechanism composed of an arc groove and an arc guide rail; the second rotating arm and the middle fixed seat are rotatably connected by a second virtual rotating shaft mechanism composed of an arc guide rail and an arc slider; the center of the first virtual rotating shaft mechanism is located outside the sliding frame and the second rotating arm, and the center of the second virtual rotating shaft mechanism is higher than the support surface of the flexible screen in the flattened state, so that when the flexible screen electronic terminal is folded inward, the bottom of the middle bend of the flexible screen is located above the middle support surface of the flexible screen and does not sink into the middle support seat and the middle shell.

10. The inward-folding flexible screen electronic terminal hinge as described in claim 7, characterized in that, A synchronous reverse rotation connection mechanism is provided between the rotating mechanism on the left and the rotating mechanism on the right.

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