Rotating shaft mechanism and mobile terminal

Patent metadata

Field	Value
Publication number	US-11846997-B2
Application number	US-202117322265-A
Country	US
Kind code	B2
Filing date	May 17, 2021
Priority date	Mar 15, 2019
Publication date	Dec 19, 2023
Grant date	Dec 19, 2023

Abstract

A connection rod and a swing arm are separately rotatably connected to a primary shaft component, and an axis around which the swing arm rotates and an axis around which the connection rod rotates are different, so that the swing arm and the connection rod rotate and slide relative to each other. The swing arm or the connection rod drives a support plate to rotate, so that the primary shaft component and the support plates can encircle to form, when the mobile terminal is completely folded, space that accommodates a folded part of a flexible display.

First claim

What is claimed is:

1. A rotating shaft mechanism, comprising:
a primary shaft;
a swing arm assembly, comprising at least one connection rod group and at least one swing arm group, wherein each connection rod group of the at least one connection rod group comprises two connection rods that are correspondingly disposed on sides of the primary shaft and that are rotatably connected to the primary shaft, each swing arm group of the at least one swing arm group comprises swing arms that are separately disposed on the sides of the primary shaft, and each of the swing arms in each of the at least one swing arm group is rotatably connected to the primary shaft, wherein each of the swing arms in each of the at least one swing arm group rotates around a first axis, and each connection rod in each of the at least one connection rod group rotates around a second axis, the first axis and the second axis are different, and both the first axis and the second axis are parallel to a length direction of the primary shaft, and wherein each of the swing arms in each of the at least one swing arm group is slidably connected to and is rotatable relative to at least one connection rod of the at least one connection rod group located on a same side of the primary shaft as the respective swing arm;
a support, comprising support plates correspondingly disposed on the sides of the primary shaft, wherein:
each support plate of the support plates is rotatably connected to a swing arm of the swing arms that is located on a same side of the primary shaft as the respective support plate, and each support plate of the support plates is slidably connected to and is rotatable relative to a connection rod of the at least one connection rod group that is located on the same side of the primary shaft as the respective support plate, each support plate of the support plates is rotatably connected to the corresponding swing arm around a third axis, and the third axis is parallel to the length direction of the primary shaft; or
each support plate of the support plates is rotatably connected to the primary shaft, and is slidably connected to and is rotatable relative to a swing arm of the swing arms that is located on the same side of the primary shaft as the respective support plate, each support plate of the support plates is rotatably connected to the primary shaft around a fourth axis, and the fourth axis is parallel to the length direction of the primary shaft; and
a position limiter, configured to limit relative sliding positions of each swing arm of each of the at least one swing arm group and each connection rod of each of the at least one connection rod group; and
wherein when the swing arms on the sides of the primary shaft rotate toward each other to a first position, corresponding connection rods or the swing arms drive the support plates to rotate toward each other to a second position, causing the support plates and the primary shaft to encircle to form a folded space that accommodates a flexible display of a mobile terminal.

2. The rotating shaft mechanism according to claim 1 ,
wherein, for each connection rod group of the at least one connection rod group, axes around which the two connection rods in the respective connection rod group of the at least one connection rod group rotate are symmetrically disposed on sides of axes around which the swing arms in the corresponding swing arm group rotate.

3. The rotating shaft mechanism according to claim 1 , wherein a sliding direction of each connection rod of each connection rod group of the at least one connection rod group is perpendicular to an axis direction of the respective connection rod; and
wherein when the swing arms located on the sides of the primary shaft rotate toward each other to the first position, the corresponding connection rod slides to a position next to the axis around which the corresponding swing arm rotates.

4. The rotating shaft mechanism according to claim 1 , wherein the primary shaft comprises at least one first arc-shaped chute, first arc-shaped chutes of the at least one first arc-shaped chutes are in a one-to-one correspondence with the swing arms of the at least one swing arm group, and each swing arm of the at least one swing arm group comprises with a first arc-shaped arm that is slidably mounted in the corresponding first arc-shaped chute.

5. The rotating shaft mechanism according to claim 1 , wherein the position limiter comprises an elastic component that is slidably mounted on a first swing arm of the swing arms, and at least two buckle openings that are disposed on a first connection rod of the at least one connection rod group and that are configured to buckle with the elastic component.

6. The rotating shaft mechanism according to claim 5 , wherein the elastic component comprises a sphere and an elastic piece that pushes the sphere to buckle with a buckle opening of the at least two buckle openings.

7. The rotating shaft mechanism according to claim 6 , wherein each swing arm of the swing arms corresponds to at least one connection rod of the at least connection rod group, and for each swing arm, at least one elastic component cooperating with the corresponding connection rod is disposed on the respective swing arm.

8. The rotating shaft mechanism according to claim 1 , wherein, for each swing arm of the swing arms, a notch that is in a one-to-one correspondence with the corresponding connection rod is disposed on the respective swing arm, and the corresponding connection rod is at least partially located in the corresponding notch.

9. The rotating shaft mechanism according to claim 8 , wherein:
a first chute is disposed on each connection rod of the at least connection rod group, and a pin shaft that is slidably mounted in the first chute is disposed on the corresponding swing arm; or
a first chute is disposed on each swing arm of the swing arms, and a first protrusion that is slidably mounted in the respective first chute is disposed on the corresponding connection rod.

10. The rotating shaft mechanism according to claim 1 , wherein:
each support plate of the support plates is rotatably connected to the corresponding swing arm by using a first pin shaft; or
a second arc-shaped chute is disposed on each support plate of the support plates, and a second arc-shaped arm that is slidably mounted in the second arc-shaped chute is disposed on the swing arm corresponding to each support plate.

11. A mobile terminal, comprising:
a flexible display;
two housings; and
a rotating shaft, comprising:
a primary shaft;
a swing arm assembly, comprising at least one connection rod group and at least one swing arm group, wherein each connection rod group of the at least one connection rod group comprises two connection rods that are correspondingly disposed on sides of the primary shaft and that are rotatably connected to the primary shaft, each swing arm group of the at least one swing arm group comprises swing arms that are separately disposed on the sides of the primary shaft, and each of the swing arms in each of the at least one swing arm group is rotatably connected to the primary shaft, wherein each of the swing arm in each of the at least one swing arm group rotates around a first axis and each connection rod in each of the at least one connection rod group rotates around a second axis, the first axis and the second axis are different and are both parallel to a length direction of the primary shaft; and each of the swing arms in each of the at least one swing arm group is slidably connected to and is rotatable relative to at least one connection rod of the at least one connection rod group located on a same side of the primary shaft as

Assignees

• Huawei Tech Co Ltd

Inventors

• Liao Li
• Nagai Kenji
• Liao Changliang
• Zhong Ding
• Huang Tao

Classifications

• G06F1/1681 Primary

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

• G06F1/1652

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

• G06F1/181

  Enclosures (for portable computers G06F1/1613) · CPC title

• F16C11/045 Primary

  with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin (crank-pins F16C11/02) · CPC title

• H04M1/0216 Primary

  Foldable in one direction, i.e. using a one degree of freedom hinge · CPC title