KR-20260065952-A - Inward-folding flexible screen mobile terminal and its hinge

KR20260065952AKR 20260065952 AKR20260065952 AKR 20260065952AKR-20260065952-A

Abstract

The present invention provides an inward-folding flexible screen mobile terminal and a hinge thereof. An axial sliding structure is installed in the hinge, and the axial sliding structure is rotatably connected to an intermediate keel through a real axis. The axial sliding structure rotates synchronously with a rotational connecting arm and is also slidable along the axial direction of the real axis, and a reversing structure is connected between the axial sliding structure and a housing connecting member. The synchronous reversing motion connecting structure of the hinge is slidably connected to the intermediate keel and includes a left connecting structure and a right connecting structure, and the left connecting structure and the right connecting structure are connected to the left axial sliding structure and the right axial sliding structure, respectively. In the present invention, by omitting a virtual rotational axis mechanism in the intermediate structure of the hinge and adopting a sliding synchronous structure, the space required by the intermediate structure of the inward-folding flexible screen mobile terminal in the left-right and height directions can be reduced, and a superior thinning effect can be achieved while satisfying the bending characteristics required during the folding process of the flexible screen.

Inventors

장 챵챵
웨이 멍카이
후, 화챠오

Assignees

항저우 암페놀 피닉스 텔레콤 파츠 컴퍼니 리미티드

Dates

Publication Date: 20260511
Application Date: 20240919
Priority Date: 20230922

Claims (12)

As a hinge for an inner folding flexible screen mobile terminal, It includes a left motion mechanism, a right motion mechanism, and an intermediate keel, wherein a synchronous reverse motion connection structure is connected between the left motion mechanism and the right motion mechanism, wherein the motion mechanism is equipped with a rotary connecting arm and a housing connecting member that is slidably connected to the rotary connecting arm, wherein the intermediate keel is equipped with a real axis for the left motion mechanism and the right motion mechanism, respectively, wherein the rotary connecting arm is rotatably connected to the intermediate keel through the real axis, and the sliding direction of the sliding connection is perpendicular to the real axis; The above motion mechanism is also equipped with an axial sliding structure, the axial sliding structure is rotatably connected to an intermediate keel through a real axis, the axial sliding structure rotates synchronously with a rotary connecting arm, the axial sliding structure is also slidable along the axial direction of the real axis, and a reversing structure is connected between the axial sliding structure and the housing connecting member; A hinge of an inner folding type flexible screen mobile terminal, characterized in that the above-described synchronous reverse motion connection structure is slidably connected to an intermediate keel, and the sliding direction follows the axial direction of the actual axis; a left connection structure and a right connection structure are installed in the above-described synchronous reverse motion connection structure, and the above-described left connection structure and the right connection structure are each connected to the axial sliding structure of the left motion mechanism and the axial sliding structure of the right motion mechanism, respectively.
In claim 1, A hinge of an inner folding type flexible screen mobile terminal, characterized in that a control mechanism for a left motion mechanism and a right motion mechanism is installed in the intermediate keel above, so that the axial sliding structure causes axial sliding to occur during the rotation process.
In claim 2, A hinge of an inner folding type flexible screen mobile terminal, characterized in that the control mechanism adopts a cam structure, and the cam structure is installed around the axis of an axial sliding structure.
In claim 3, A hinge of an inner folding type flexible screen mobile terminal, characterized in that the cam structure installed on the left side and the cam structure installed on the right side of the intermediate keel are installed in opposite directions, and accordingly, in the first axial direction, the synchronous reverse motion connection structure and the axial sliding structure generate a driving force through the cam structure on the left and form a clearance distance through the cam structure on the right during the rotation process, and in the second axial direction, the synchronous reverse motion connection structure and the axial sliding structure generate a driving force through the cam structure on the right and form a clearance space through the cam structure on the left; and the first direction and the second direction are opposite directions.
In claim 1, A hinge of an inner folding type flexible screen mobile terminal, characterized in that the above-described left connecting structure and right connecting structure are each inserted into the actual axis in the form of a sleeve, and each is connected to the end where the above-described axial sliding structure is connected to the actual axis.
In claim 1, A hinge of an inner folding type flexible screen mobile terminal, characterized in that the above-described axial sliding structure includes an axial sliding member, the above-described reversing structure includes a connecting rod, and both ends of the connecting rod are rotatably connected to a housing connecting member and an axial sliding member, respectively.
In claim 6, A hinge of an inner folding type flexible screen mobile terminal, characterized in that the above-described reversing structure further includes a track groove installed in an axial sliding member, and a pin that cooperates with the track groove is installed in the connecting rod.
In claim 1, The hinge further comprises a rotational resistance mechanism, wherein the rotational resistance mechanism comprises a clamping axis sleeve and an axis that move in an axial direction, wherein a variable diameter section is formed on the axis, and the clamping axis sleeve rotates synchronously with a rotational connecting arm; wherein the variable diameter section comprises a small diameter section that cooperates with the clamping axis sleeve in the stage where the flexible screen mobile terminal approaches a folded state and in the stage where it approaches an unfolded flat state, and a high torque output section that cooperates with the clamping axis sleeve between the initial stage and the stage where it approaches an unfolded flat state, wherein the diameter of the high torque output section is larger than the diameter of the small diameter section, and furthermore, a smooth transition is formed between the high torque output section and the small diameter section; A hinge of an inner folding type flexible screen mobile terminal, characterized in that a control mechanism is installed in the intermediate keel above, so that the axial sliding structure causes axial sliding to occur during the rotation process.
In claim 8, A hinge of an inner folding type flexible screen mobile terminal characterized in that the actual axis on the same side as the axis where the variable diameter section is formed is coaxial.
In claim 8, A hinge of an inner folding type flexible screen mobile terminal, characterized in that the control mechanism adopts a cam structure; and the cam structure is installed around the axis of the axial sliding structure.
In claim 8, The above control mechanism simultaneously controls the axial sliding that occurs when the axial sliding structure rotates, and the rotational resistance mechanism is installed in the left motion mechanism and the right motion mechanism, respectively; and the clamping shaft sleeve is connected together with the axial sliding structure on the same side; A hinge of an inner folding type flexible screen mobile terminal, characterized in that the cam structure installed on the left side and the cam structure installed on the right side of the intermediate keel are installed in opposite directions, and accordingly, in the first axial direction, the synchronous reverse motion connection structure and the axial sliding structure generate a driving force through the cam structure on the left and form a clearance distance through the cam structure on the right during the rotation process, and in the second axial direction, the synchronous reverse motion connection structure and the axial sliding structure generate a driving force through the cam structure on the right and form a clearance space through the cam structure on the left; and the first direction and the second direction are opposite directions.
As an inwardly folding flexible screen mobile terminal, An inner folding type flexible screen mobile terminal comprising a flexible screen installed on the inner side of the mobile terminal, a left housing and a right housing, and a hinge connecting the left housing and the right housing, wherein the hinge adopts a hinge according to any one of claims 1 to 11.

Description

Inward-folding flexible screen mobile terminal and its hinge The present invention relates to an inwardly folding flexible screen mobile terminal and a hinge thereof, wherein the flexible screen mobile terminal may be a mobile phone, a laptop computer, etc. In the case of an inwardly folding flexible screen mobile terminal, the mobile terminal includes a flexible screen installed on the inside of the mobile terminal, a left housing and a right housing, and a hinge connecting the left housing and the right housing. To accommodate the bending characteristics of the flexible screen when the mobile terminal is folded, one solution is to allow the left housing and the right housing to slide left and right. To implement the sliding of the left housing and the right housing, an additional rotation axis is installed for the motion structure of each side in addition to the rotation axis of the housing, and the rotation axis is installed above the support surface of the flexible screen to form a virtual rotation center structure through an arc-shaped slide rail and an arc-shaped guide groove. FIG. 1 is a schematic diagram of an embodiment of the hinge of the present invention viewed from above when the mobile terminal is in an unfolded flat state. FIG. 2 is a schematic diagram of the embodiment illustrated in FIG. 1 viewed from below upward when the mobile terminal is in an unfolded flat state. Figure 3 is an exploded view of one module in the embodiment shown in Figure 1. Figure 4 is a schematic diagram of the module shown in Figure 3. Figure 5 is a schematic diagram of the structure of a hovering module in the embodiment shown in Figure 1. Figure 6 is a schematic diagram of the connection structure of the hovering module shown in Figure 5. FIG. 7 is a schematic diagram of another embodiment of the hinge of the present invention. Figure 8 is a partially exploded structural diagram of the embodiment shown in Figure 7. FIG. 9 is a schematic diagram showing the operation of the rotational resistance mechanism of the embodiment shown in FIG. 7 during the opening (or closing) process of a mobile terminal. Referring to the drawings, the hinge for the inner folding type flexible screen mobile terminal provided in the present invention includes a left motion mechanism, a right motion mechanism, and an intermediate keel (300). A synchronous reverse motion connection structure (4) is connected between the left motion mechanism and the right motion mechanism. The motion mechanism is equipped with a rotational connection arm (1) and a housing connection member (2) that is slidably connected to the rotational connection arm (1). The intermediate keel (300) is equipped with a real axis (301) for each of the left motion mechanism and the right motion mechanism. The rotational connection arm (1) is rotatably connected to the intermediate keel (300) through the real axis (301). The sliding direction of the sliding connection, that is, the sliding direction of the housing connection member (2), is perpendicular to the real axis (301). The intermediate keel (300) may be a single integral structure, or it may be formed by connecting multiple sections to each other through a connecting member. The axial position of the rotary connecting arm (1) can be achieved by limiting the part (11) of the rotary connecting arm (1) inserted into the slot (304) formed by the bracket part of the intermediate keel (300) through which the actual axis (301) passes. An axial sliding structure is also installed in the motion mechanism. The axial sliding structure may adopt an axial sliding member (3) (e.g., the main body being block-shaped, plate-shaped, etc.). The axial sliding member (3) is rotatably connected to the intermediate keel through a real axis, and the real axis may be formed integrally with the real axis (301) (in this embodiment, it is formed as an integral structure and is indicated by reference numeral 301), or it may be separated into two sections. The axial sliding member (3) rotates synchronously with the rotational connecting arm (1), and the axial sliding member (3) can also slide along the axial direction of the real axis (301). An inversion structure is connected between the axial sliding member (3) and the housing connecting member (2). A control mechanism for a left motion mechanism and a right motion mechanism is installed in the intermediate keel (300) to cause the axial sliding structure to generate axial sliding during rotation. The control mechanism adopts a cam structure, and the cam structure is installed around the axis of the axial sliding structure. The cam structure (61) installed on the left side of the intermediate keel and the cam structure (62) installed on the right side are installed in opposite directions, which means that not only are the directions of the cam surfaces opposite, but the cooperation methods are also opposite. When the cam structure (61) on the left performs upward cooperation, the cam structure (6