Mid-frame assembly and display device

Patent metadata

Field	Value
Publication number	US-11729929-B2
Application number	US-202117500765-A
Country	US
Kind code	B2
Filing date	Oct 13, 2021
Priority date	Oct 15, 2020
Publication date	Aug 15, 2023
Grant date	Aug 15, 2023

Abstract

The present disclosure provides a mid-frame assembly. The mid-frame assembly includes: a rotation shaft assembly, a first mid-frame body, a first slide mid-frame, a second mid-frame body, and a second slide mid-frame. The first mid-frame body and the second mid-frame body are rotatably connected to two sides of the rotation shaft assembly; the first slide mid-frame is connected to a side, distal from the rotation shaft assembly, of the first mid-frame body and capable of moving relative to the first mid-frame body; and the second slide mid-frame is connected to a side, distal from the rotation shaft assembly, of the second mid-frame body and capable of moving relative to the second mid-frame body.

First claim

What is claimed is:

1. A mid-frame assembly, comprising:
a rotation shaft assembly;
a first mid-frame body, rotatably connected to one side of the rotation shaft assembly;
a first slide mid-frame, wherein the first slide mid-frame is connected to a side, distal from the rotation shaft assembly, of the first mid-frame body, and capable of moving relative to the first mid-frame body along a direction towards or away from the rotation shaft assembly;
a second mid-frame body, rotatably connected to the other side of the rotation shaft assembly;
a second slide mid-frame, wherein the second slide mid-frame is connected to a side, distal from the rotation shaft assembly, of the second mid-frame body, and capable of moving relative to the second mid-frame body along a direction towards or away from the rotation shaft assembly; and
a first drive assembly, configured to drive the first slide mid-frame to move together in the case that the first mid-frame body is rotated relative to the rotation shaft assembly;
wherein the first mid-frame body comprises a first main mid-frame, and at least one rotation shaft fixedly connected to the first main mid-frame; the rotation shaft is rotatably connected to the rotation shaft assembly; the first drive assembly comprises at least one first sub-drive assembly, wherein the first sub-drive assembly comprises:
a first linkage gear, wherein the first linkage gear is configured in one of the following ways: the first linkage gear is fixedly connected to the rotation shaft and coaxial with the rotation shaft, and, the first linkage gear is coaxially fitted over the rotation shaft and fixedly connected to the rotation shaft assembly;
a second linkage gear, disposed on a side of the first main mid-frame;
a drive member, wherein the drive member is connected between the first linkage gear and the second linkage gear, and configured to drive the second linkage gear to rotate under rotation of the first linkage gear;
a first gear, wherein the first gear is coaxial with and fixedly connected to the second linkage gear; and
a first rack, wherein the first rack is fixed to a side of the first slide mid-frame, and comprises a first serrated portion configured to be engaged with the first gear.

2. The mid-frame assembly according to claim 1 , wherein the first drive assembly further comprises:
a second gear, wherein second gear is coaxial with and fixedly connected to the second linkage gear, and an indexing circumference of the second gear is shorter than an indexing circumference of the first gear; and
a second rack, wherein the second rack is fixed to a side of the first slide mid-frame and comprising a second serrated portion configured to be engaged with the second gear, wherein the second serrated portion is disposed on a side, distal from the rotation shaft assembly, of the first serrated portion, and at a same moment at most one of the first serrated portion and the second serrated portion is in engagement.

3. The mid-frame assembly according to claim 2 , wherein the drive member comprises:
a first drive gear, disposed on a side of the first main mid-frame;
a first gear belt, drive-connected between the first drive gear and the first linkage gear;
a second drive gear, wherein the second drive gear is coaxial with and fixedly connected to the first drive gear, and an indexing circumference of the second drive gear is longer than an indexing circumference of the first drive gear; and
a second gear belt, drive-connected between the second drive gear and the second linkage gear.

4. The mid-frame assembly according to claim 3 , wherein the first sub-drive assembly further comprises:
a first support seat, wherein the first support seat is fixedly connected to a side of the first main mid-frame, and is provided with a first through hole;
a first shaft pin, wherein the first shaft pin is rotatably connected in the first through hole, and coaxial with and fixedly connected to the second linkage gear;
a second support seat, wherein the second support seat is fixedly connected to a side of the first main mid-frame, and provided with a second through hole; and
a second shaft pin, wherein the second shaft pin is rotatably connected in the second through hole, and coaxial with and fixedly connected to the first drive gear and the second drive gear.

5. The mid-frame assembly according to claim 4 , wherein
the first support seat comprises:
a first support plate, wherein the first support plate is fixedly connected to a side of the first main mid-frame, and is provided with a first sub-through hole; and
a second support plate, wherein the second support plate is fixedly connected to a side of the first main mid-frame and spaced apart from the first support plate, and provided with a second sub-through hole, wherein the first sub-through hole and the second sub-through hole form the first through hole.

6. The mid-frame assembly according to claim 4 , wherein the second support seat comprises:
a third support plate, wherein the third support plate is fixedly connected to a side of the first main mid-frame, and is provided with a third sub-through hole; and
a fourth support plate, wherein the fourth support plate is fixedly connected to a side of the first main mid-frame and spaced apart from the third support plate, and provided with a fourth sub-through hole, wherein the third sub-through hole and the fourth sub-through hole form the second through hole.

7. The mid-frame assembly according to claim 1 , wherein the first mid-frame body further comprises:
a first baffle, wherein the first baffle is disposed on a side of the first main mid-frame and fixedly connected to the first main mid-frame, and fixedly connected to the rotation shaft and rotatably connected to the rotation shaft assembly via the rotation shaft.

8. The mid-frame assembly according to claim 7 , wherein the rotation shaft assembly comprises:
a rotation shaft body;
a first connection portion, wherein the first connection portion is disposed on one end of the rotation shaft body and fixedly connected to the rotation shaft body, and the first connection portion is provided with two third through holes; and
a second connection portion, wherein the second connection portion is disposed on the other end of the rotation shaft body and is fixedly connected to the rotation shaft body, and the second connection portion is provided with two fourth through holes;
wherein the first mid-frame body is connected to one of the third through holes and one of the fourth through holes; and
the second mid-frame body is connected to the other third through hole and the other fourth through hole.

9. The mid-frame assembly according to claim 8 , wherein
the first baffle comprises:
a baffle body, comprising a first side edge and a second side edge opposite to each other;
a first extension portion, connected to the first side edge of the baffle body; and
a second extension portion, connected to the second side edge of the baffle body;
wherein the first extension portion and the second extension portion are opposite to each other, and the rotation shaft is disposed between the first extension portion and the second extension portion and is connected to at least one of the first extension portion and the second extension portion.

10. The mid-frame assembly according to claim 9 , wherein the first drive assembly comprises two of the first sub-drive assembly.

11. The mid-frame assembly according to claim 1 , wherein the first slide mid-frame comprises:
a first frame portion, comprising a first plate body, a first side plate and a second side plate, wherein the first side plate and the second side plate ar

Assignees

• Boe Technology Group Co Ltd

Inventors

• Zhang Shouchuan
• Chu Shangchieh
• Zhou Yonghong
• Gao Meiling

Classifications

• H05K5/0217 Primary

  Mechanical details of casings (covers, lids, hoods or members for covering apertures H05K5/03) · CPC title

• G09F9/301 Primary

  flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED · CPC title

• H05K5/0017

  with operator interface units · CPC title

• G02F1/133308

  Support structures for LCD panels, e.g. frames or bezels · CPC title

• G06F1/1616

  with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position · CPC title