Hinge apparatus and foldable display apparatus

Patent metadata

Field	Value
Publication number	US-12174669-B2
Application number	US-202218023003-A
Country	US
Kind code	B2
Filing date	Mar 31, 2022
Priority date	Mar 31, 2022
Publication date	Dec 24, 2024
Grant date	Dec 24, 2024

Abstract

Disclosed is a hinge apparatus including a rotating portion and a co-moving portion; the rotating portion includes a first supporting plate, a second supporting plate, a first connection plate, and a second connection plate; the first connection plate and the second connection plate are respectively connected with the first supporting plate and the second supporting plate in a slidable manner; the co-moving portion includes a first connection rod, a second connection rod, a first rotating shaft, a second rotating shaft, and a transmission apparatus; the first connection rod is fixedly connected on the first rotating shaft and is connected with the first connection plate in a slidable manner, the second connection rod is fixedly connected on the second rotating shaft and is connected with the second connection plate in a slidable manner, and the transmission apparatus is disposed to rotate the first rotating shaft and the second rotating shaft synchronously.

First claim

The invention claimed is:

1. A hinge apparatus, comprising a rotating portion and a co-moving portion; wherein
the rotating portion comprises a guide groove seat, a first supporting plate, a second supporting plate, a first connection plate, and a second connection plate; the guide groove seat is provided with a first non-circular arc guide groove, a second non-circular arc guide groove, a first circular arc guide groove, and a second circular arc guide groove; the first supporting plate is provided with a first non-circular arc rotating portion which is rotationally fitted with the first non-circular arc guide groove, the second supporting plate is provided with a second non-circular arc rotating portion which is rotationally fitted with the second non-circular arc guide groove, the first connection plate is provided with a first circular arc rotating portion which is rotationally fitted with the first circular arc guide groove, and the second connection plate is provided with a second circular arc rotating portion which is rotationally fitted with the second circular arc guide groove; the first connection plate is connected on the first supporting plate in a slidable manner, and the second connection plate is connected on the second supporting plate in a slidable manner;
the co-moving portion comprises a first connection rod, a second connection rod, a fixing seat, a first rotating shaft and a second rotating shaft disposed in the fixing seat in a rotatable manner and arranged in parallel, and a transmission apparatus; the first connection rod is fixedly connected on the first rotating shaft and is connected with the first connection plate in a slidable manner, the second connection rod is fixedly connected on the second rotating shaft and is connected with the second connection plate in a slidable manner, and the transmission apparatus is disposed to rotate the first rotating shaft and the second rotating shaft synchronously.

2. The hinge apparatus according to claim 1 , wherein both the first connection plate and the second connection plate are provided as two, and the co-moving portion is provided as two;
a first connection rod of one of the two co-moving portions is connected with one of the two first connection plates, and a first connection rod of the other of the two co-moving portions is connected with the other of the two first connection plates; a second connection rod of one of the two co-moving portions is connected with one of the two second connection plates, and a second connection rod of the other of the two co-moving portions is connected with the other of the two second connection plates;
the first supporting plate and the second supporting plate are symmetrically disposed on both sides of the guide groove seat along a first direction, and the two co-moving portions are symmetrically disposed on both sides of the guide groove seat along a second direction, and the first direction and the second direction are perpendicular to each other.

3. The hinge apparatus according to claim 2 , wherein the two first connection plates and the two second connection plates are both symmetrically disposed on both sides of the guide groove seat along the second direction, and the first connection plate and the second connection plate connected with a same co-moving portion are symmetrically disposed on both sides of the guide groove seat along the first direction.

4. The hinge apparatus according to claim 2 , wherein the guide groove seat is arranged symmetrically with respect to a first symmetry axis and arranged symmetrically with respect to a second symmetry axis, the first symmetry axis is parallel to the first direction, and the second symmetry axis is parallel to the second direction.

5. The hinge apparatus according to claim 4 , wherein the guide groove seat comprises two sub-guide groove seats, the two sub-guide groove seats are arranged symmetrically with respect to the second symmetry axis, each of the sub-guide groove seats is arranged symmetrically with respect to the first symmetry axis; each of the sub-guide groove seats is divided into two parts by the first symmetry axis, and each part of the two parts is provided with one non-circular arc guide groove and one circular arc guide groove;
the first supporting plate is provided with two first non-circular arc rotating portions, and the two first non-circular arc rotating portions are respectively rotationally fitted with two non-circular arc guide grooves located on one side of the first symmetry axis; the second supporting plate is provided with two second non-circular arc rotating portions, and the two second non-circular arc rotating portions are respectively rotationally fitted with two non-circular arc guide grooves located on the other side of the first symmetry axis;
the two first connection plates are each provided with one first circular arc rotating portion, and the two first circular arc rotating portions are respectively rotationally fitted with two circular arc guide grooves located on one side of the first symmetry axis; the two second connection plates are each provided with one second circular arc rotating portion, and the two second circular arc rotating portions are respectively rotationally fitted with two circular arc guide grooves located on the other side of the first symmetry axis.

6. The hinge apparatus according to claim 4 , wherein the hinge apparatus is arranged symmetrically with respect to the first symmetry axis and arranged symmetrically with respect to the second symmetry axis.

7. The hinge apparatus according to claim 1 , further comprising a first damping portion, wherein the first damping portion comprises a first fixing frame, a first friction member, and a first elastic member; the first rotating shaft also passes through and is disposed in the first fixing frame in a rotatable manner, the first friction member is sleeved on the first rotating shaft and is able to rotate together with the first rotating shaft, a first end face of the first friction member is alternately provided with a first groove and a first boss, the first fixing frame is provided with a first friction surface fitted with the first end face of the first friction member, and the first friction surface is alternately provided with a second groove and a second boss; one end of the first elastic member is fixed, and the other end abuts against a second end face of the first friction member; in a process that the first boss is rotated from the second groove to contact with the second boss, the first friction member is able to slide along the first rotating shaft and squeeze the first elastic member, and the first elastic member is elastically deformed by being squeezed by the first friction member;
or/and, further comprising a second damping portion, wherein the second damping portion comprises a second fixing frame, a second friction member, and a second elastic member; the second rotating shaft passes through and is disposed in the second fixing frame in a rotatable manner, the second friction member is sleeved on the second rotating shaft and is able to rotate together with the second rotating shaft, a first end face of the second friction member is alternately provided with a third groove and a third boss, the second fixing frame is provided with a second friction surface fitted with the first end face of the second friction member, and the second friction surface is alternately provided with a fourth groove and a fourth boss; one end of the second elastic member is fixed, and the other end abuts against a second end face of the second friction member; in a process that the third boss is rotated from the fourth groove to contact with the fourth boss, the second friction member is able to slide along the second rotating shaft

Assignees

• Chengdu Boe Optoelect Tech Co
• Boe Technology Group Co Ltd
• Beijing Boe Technology Dev Co Ltd

Inventors

• You Chuankun
• Qing Wei
• Zhang Jun
• Wu Fengping
• Wang Zhihui

Classifications

• G06F1/1681

  Details related solely to hinges (hinge details related to the transmission of signals or power are classified in G06F1/1683) · CPC title

• G06F1/16

  Constructional details or arrangements · CPC title

• F16C11/04

  Pivotal connections (hinges for doors, windows or wings E05D) · CPC title

• G06F1/1652 Primary

  the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title