IP Library › Granted Patent US 12,659,389
Granted Patent B2
US 12,659,389 · App. 18/240,111 · Granted Jun 16, 2026

Hinge structure and electronic device

Inventors: Wei-Hua Hsu (New Taipei, TW); Chia-Hsin Chang (New Taipei, TW)
Assignee: Chiun Mai Communication Systems, Inc.
H04M1/0216G06F1/1616G06F1/1652G06F1/1656G06F1/1681H04M1/0268
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,659,389
App. No.
18/240,111
Granted
Jun 16, 2026
Kind
B2
Abstract

A hinge structure is configured to be disposed between a first body and a second body. The hinge structure includes a first shaft assembly, at least two guiding members, a second shaft assembly, and two supporting plates. Each guiding member includes a first end and a second end, the first end is bent to form a sliding groove. The second shaft assembly is disposed in the sliding groove. The two supporting plates are connected to the first body and the second body, respectively, one end of each supporting plate is sleeved on the first shaft assembly, and another end of each supporting plate is fixed to the second end of; when the first body and the second body are closed to or opened with each other, the second shaft assembly is displaced relative to the guiding member. An electronic device is provided according to the present disclosure.

Claims (25)

1 . A hinge structure configured to be disposed between a first body and a second body of an electronic device and connected to the first body and the second body, the hinge structure comprising:

a first shaft assembly;

at least two guiding members, wherein each of the at least two guiding members comprises a first end and a second end, the first end is bent to form a sliding groove;

a second shaft assembly disposed in the sliding groove; and

two supporting plates;

wherein the first shaft assembly is configured to be disposed in the first body and the second body; the two supporting plates are configured to be connected to the first body and the second body, respectively, one end of each of the two supporting plates is sleeved on the first shaft assembly, and another end of each of the two supporting plates is fixed to the second end of a respective one of the at least two guiding members; when the first body and the second body are closed to or opened with each other, the second shaft assembly is displaced relative to the at least two guiding members; each of the at least two guiding members comprises at least one protruding point, and the at least one protruding point protrudes toward the sliding groove, and the at least one protruding point separates the sliding groove into a first cavity and a second cavity communicating with each other; when the first body and the second body are closed to each other or opened with each other, the second shaft assembly generates a displacement between the first cavity and the second cavity.

2 . The hinge structure of claim 1 , wherein the at least two guiding members are configured to rotate about the first shaft assembly.

3 . The hinge structure of claim 1 , wherein each of the two supporting plates comprises a flat portion and a winding portion connected to each other, the at least two guiding members are fixed on the flat portion, and the first shaft assembly pass through the winding portion.

4 . The hinge structure of claim 3 , wherein when the first body and the second body are closed to each other, a distance between the flat portions of the two supporting plates is greater than a distance between the winding portions of the two supporting plates.

5 . An electronic device comprising:

a first body;

a second body;

a flexible screen; and

a hinge structure disposed between the first body and the second body connected to the first body and the second body, the hinge structure comprising:

a first shaft assembly;

at least two guiding members, wherein each of the at least two guiding members comprises a first end and a second end, the first end is bent to form a sliding groove;

a second shaft assembly disposed in the sliding groove; and

two supporting plates;

wherein the two supporting plates are configured to be connected to the first body and the second body, respectively, one end of each of the two supporting plates is sleeved on the first shaft assembly, and another end of each of the two supporting plates is fixed to the second end of a respective one of the at least two guiding members; when the first body and the second body are closed to or opened with each other, the second shaft assembly is displaced relative to the at least two guiding members; each of the at least two guiding members comprises at least one protruding point, and the at least one protruding point protrudes toward the sliding groove, and the at least one protruding point separates the sliding groove into a first cavity and a second cavity communicating with each other; when the first body and the second body are closed to or opened with each other, the second shaft assembly generates a displacement between the first cavity and the second cavity.

6 . The electronic device of claim 5 , further comprising a reinforcing structure, wherein the reinforcing structure is disposed on a side of the two supporting plates away from the flexible screen.

7 . The electronic device of claim 6 , wherein the reinforcing structure comprises a reinforcing block and a reinforcing rail, the reinforcing block is fixed to the first body or the second body; the reinforcing block is configured to slide on the reinforcing rail; an outer surface of the reinforcing rail is arc-shaped, and an inner surface of the reinforcing block is engaged with the outer surface.

8 . The electronic device of claim 7 , wherein the reinforcing rail is spaced from a rotation axis of each of the two supporting plates.

9 . The electronic device of claim 8 , wherein each of the two supporting plates comprises a flat portion and a winding portion connected to each other, the at least two guiding members are fixed on the flat portion, and the first shaft assembly pass through the winding portion.

10 . The electronic device of claim 9 , wherein when the first body and the second body are closed to each other, a distance between the flat portions of the two supporting plates is greater than a distance between the winding portions of the two supporting plates.

11 . The electronic device of claim 5 , wherein the at least two guiding members are configured to rotate about the first shaft assembly.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 30, 2023
From: HSU, WEI-HUA; CHANG, CHIA-HSIN
To: CHIUN MAI COMMUNICATION SYSTEMS, INC.
Reel/Frame 064756/0610 →
Priority Claims (1)
CN 202211105293.0 · Sep 9, 2022 · national
Continuity (1)
Related Publication 20240089356A1 · Mar 14, 2024
References Cited (8)
US 20240004430A1 · Zhao · 2024 [cited by examiner]
US 20240121905A1 · Cao · 2024 [cited by examiner]
US 20240288902A1 · You · 2024 [cited by examiner]
US 20250243899A1 · Zheng · 2025 [cited by examiner]
US 20250258522A1 · Zhang · 2025 [cited by examiner]
US 20250306645A1 · Liu · 2025 [cited by examiner]
CN 112049861A · 2020 [cited by applicant]
CN 216691841U · 2022 [cited by applicant]