Hinge assembly and terminal product

Patent metadata

Field	Value
Publication number	US-12565909-B2
Application number	US-202318567497-A
Country	US
Kind code	B2
Filing date	Apr 14, 2023
Priority date	May 19, 2022
Publication date	Mar 3, 2026
Grant date	Mar 3, 2026

Abstract

A hinge assembly is provided. The first swing arm includes a first hinge connecting part and a first rotating part. The first swing arm is rotatable relative to the base around a first axis between the first hinge connecting part and the first rotating part. The second swing arm includes a second hinge connecting part and a second rotating part. The second swing arm is rotatable relative to the base around a second axis between the second hinge connecting part and the second rotating part. The second axis is parallel to the first axis. The slider includes a first fastening part, a second fastening part, and an extension part. The extension part is located in the guide groove. The first fastening part is movably connected to the first hinge connecting part. The second fastening part is movably connected to the second hinge connecting part.

First claim

What is claimed is:

1 . A hinge assembly, comprising:
a base, provided with a guide groove; a first swing arm, comprising a first hinge connecting part and a first rotating part that are firmly connected, wherein the first hinge connecting part and the first rotating part are rotatable relative to the base around a first axis between the first hinge connecting part and the first rotating part, and the first axis is fastened relative to the base; a second swing arm, comprising a second hinge connecting part and a second rotating part that are firmly connected, wherein the second hinge connecting part and the second rotating part are rotatable relative to the base around a second axis between the second hinge connecting part and the second rotating part, the second axis is fastened relative to the base, and the second axis is parallel to the first axis; and a slider, comprising a first fastening part, a second fastening part, and an extension part that are firmly connected, wherein the extension part is located in the guide groove, the first fastening part is movably connected to the first hinge connecting part, and the second fastening part is movably connected to the second hinge connecting part; and the first axis and the second axis are parallel to a first direction, and the extension part is movable in the guide groove in a second direction intersecting with the first direction, to drive the first swing arm and the second swing arm to rotate synchronously.

2 . The hinge assembly according to claim 1 , wherein the first fastening part is provided with a first slide rail, the second fastening part is provided with a second slide rail, the hinge assembly further comprises a first pin and a second pin, the first pin penetrates the first slide rail and the first hinge connecting part, and the second pin penetrates the second slide rail and the second hinge connecting part.

3 . The hinge assembly according to claim 2 , wherein a size of the first slide rail in a third direction is larger than a size of the first pin in the third direction; and a size of the second slide rail in the third direction is larger than a size of the second pin in the third direction, and the third direction is perpendicular to the first direction and the second direction.

4 . The hinge assembly according to claim 1 , wherein the hinge assembly further comprises a first elastic member, the first elastic member comprises a first elastic part and a second elastic part connected to each other, one end, away from the second elastic part, of the first elastic part is connected to the first hinge connecting part, and one end, away from the first elastic part, of the second elastic part is connected to the second hinge connecting part.

5 . The hinge assembly according to claim 4 , wherein the first elastic member is a torsion spring, the torsion spring comprises a spiral part and a first torsion arm and a second torsion arm that are connected to two ends of the spiral part, the first torsion arm is the first elastic part, and the second torsion arm is the second elastic part.

6 . The hinge assembly according to claim 5 , wherein the hinge assembly further comprises a first pin and a second pin, the first pin penetrates the first fastening part, the first hinge connecting part, and the first torsion arm, and the second pin penetrates the second fastening part, the second hinge connecting part, and the second torsion arm.

7 . The hinge assembly according to claim 6 , wherein the hinge assembly further comprises a sleeve, at least one of the first pin or the second pin is sleeved with the sleeve, the sleeve is in contact with the first torsion arm and/or the second torsion arm, and the sleeve is configured to prevent the first torsion arm from moving relative to the first pin in the first direction, and/or the second torsion arm from moving relative to the second pin in the first direction.

8 . The hinge assembly according to claim 7 , wherein the first pin and the second pin are both provided with the sleeves, the first torsion arm is clamped between the sleeve and the first hinge connecting part, and the second torsion arm is clamped between the second fastening part and the sleeve.

9 . The hinge assembly according to claim 4 , wherein the first elastic member is a C-shaped spring.

10 . The hinge assembly according to claim 1 , wherein the first direction is perpendicular to the second direction.

11 . The hinge assembly according to claim 1 , wherein the guide groove comprises a convex surface, and the convex surface protrudes toward the extension part; and the hinge assembly further comprises a second elastic member, the second elastic member is located between the extension part and the convex surface, and when the extension part moves in the second direction, the second elastic member is enabled to deform.

12 . The hinge assembly according to claim 11 , wherein the hinge assembly further comprises:
a damping rod, wherein the damping rod is movably connected to the slider, and the damping rod is movable relative to the slider in the first direction; and a cam, wherein the cam is firmly connected to the damping rod, and the cam abuts against the convex surface, wherein the second elastic member is sleeved on the damping rod, and two ends of the second elastic member abut against the extension part and the cam respectively.

13 . The hinge assembly according to claim 12 , wherein the slider comprises an accommodation cavity, the accommodation cavity is formed by recessing in the first direction of a surface, away from the first fastening part and the second fastening part, of the extension part, one portion of the damping rod is located in the accommodation cavity, and the other portion of the damping rod protrudes from the accommodation cavity.

14 . The hinge assembly according to claim 13 , wherein the accommodation cavity comprises a first accommodation part and a second accommodation part; and the damping rod comprises a first limiting part, a rod part, and a second limiting part, the first limiting part is located in the first accommodation part, a portion of the rod part is located in the second accommodation part, the second elastic member is sleeved on the rod part, and the cam is fastened to the second limiting part.

15 . The hinge assembly according to claim 11 , wherein the hinge assembly further comprises:
a damping rod, firmly connected to the slider; and a cam, wherein the cam is movably connected to the damping rod, the cam is movable relative to the damping rod in the first direction, and the cam abuts against the convex surface, wherein the second elastic member is sleeved on the damping rod, and two ends of the second elastic member abut against the extension part and the cam respectively.

16 . The hinge assembly according to claim 1 , wherein the base comprises a first base block, a connecting block, and a second base block, the connecting block connects the first base block and the second base block, and the guide groove is located on the first base block and/or the second base block.

17 . The hinge assembly according to claim 16 , wherein the hinge assembly further comprises a first fastened rod and a second fastened rod, the first fastened rod is fastened to the first base block and the second base block, the second fastened rod is fastened to the first base block and the second base block, the first fastened rod penetrates a joint between the first hinge connecting part and the first rotating part, and the second fastened rod penetrates a joint between the seco

Assignees

• Honor Device Co Ltd

Inventors

• Zhang Handong
• Wei Yameng
• Feng Lei
• Zhang Yaolei

Classifications

• H04M1/0237

  Sliding mechanism with one degree of freedom · CPC title

• H04M1/0222

  Foldable in two directions, i.e. using a two degree of freedom hinge · CPC title

• F16C2380/00

  Electrical apparatus · 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

• G06F1/16

  Constructional details or arrangements · CPC title