US-12618433-B2 - Support mechanism and electronic device

Abstract

The support mechanism includes a first rotation module, a second rotation module, and a module support. The first rotation module includes a first door plate, a first support arm, a first housing support, and a first swing rod. The first door plate is used to support a flexible display. The first support arm is rotatably connected to the module support. The first door plate is rotatably connected to the first housing support. The first support arm is slidably connected to the first housing support. The first swing rod is slidably connected to the first door plate. A first end of the first swing rod is rotatably connected to the first housing support. A second end of the first swing rod can abut against the first support arm. When the electronic device falls, the housing support does not have a displacement or has a small displacement relative to the module support.

Inventors

• Yangming LIN
• Song Wang
• Zhengshu Cheng

Assignees

• HUAWEI TECHNOLOGIES CO., LTD.

Dates

Publication Date

20260505

Application Date

20240821

Priority Date

20230419

Claims (20)

1. 1 . A support mechanism, comprising: a first rotation module, comprising a first door plate, a first support arm, a first housing support, and a first swing rod, wherein the first door plate supports a flexible display, at least a part of the first support arm is disposed on a surface of the first door plate that faces away from the flexible display, at least a part of the first housing support is disposed on a surface that is of the first support arm and that faces away from the first door plate, the first door plate is rotatably connected to the first housing support, the first support arm is slidably connected to the first housing support, at least a part of the first swing rod is disposed on the surface of the first door plate that faces away from the flexible display, the first swing rod is slidably connected to the first door plate, and a first end of the first swing rod is rotatably connected to the first housing support; a second rotation module, comprising a second door plate, a second support arm, a second housing support, and a second swing rod, wherein the second door plate supports the flexible display, at least a part of the second support arm is disposed on a surface of the second door plate that faces away from the flexible display, at least a part of the second housing support is disposed on a surface of the second support arm that faces away from the second door plate, the second door plate is rotatably connected to the second housing support, the second support arm is slidably connected to the second housing support, at least a part of the second swing rod is disposed on the surface that is of the second door plate and that faces away from the flexible display, the second swing rod is slidably connected to the second door plate, and a first end of the second swing rod is rotatably connected to the second housing support; and a module support, wherein the first rotation module and the second rotation module are respectively disposed on two sides of the module support, the first support arm is rotatably connected to the module support, and the second support arm is rotatably connected to the module support; and wherein when the first housing support and the second housing support rotate relative to each other, the first housing support drives the first support arm to rotate around the module support, and the first housing support drives the first door plate to rotate relative to the first housing support, causing one end that is of the first door plate and that is closest to the module support to move in a direction away from the module support; wherein the first door plate drives the first swing rod to rotate relative to the first housing support, causing a second end of the first swing rod to move in a direction away from the first door plate; wherein the second housing support drives the second support arm to rotate around the module support, and the second housing support drives the second door plate to rotate relative to the second housing support, causing one end of the second door plate that is closest to the module support to move in a direction away from the module support; wherein the second door plate drives the second swing rod to rotate relative to the second housing support, causing a second end of the second swing rod to move in a direction away from the second door plate; and wherein when the first door plate rotates to a first position and the second door plate rotates to a second position, the first door plate and the second door plate form an included angle, the second end of the first swing rod abuts against the first support arm, and the second end of the second swing rod abuts against the second support arm.
2. 2 . The support mechanism according to claim 1 , wherein a first limiting slot extends in a surface of the first housing support that faces the first door plate, the first end of the first swing rod is rotatably disposed in the first limiting slot, a second limiting slot extends in a surface of the first support arm that faces the first door plate, and the second end of the first swing rod abuts against the second limiting slot; and wherein a third limiting slot extends in a surface of the second housing support that faces the second door plate, the first end of the second swing rod is rotatably disposed in the third limiting slot, a fourth limiting slot extends in a surface of the second support arm that faces the second door plate, and the second end of the second swing rod abuts against the fourth limiting slot.
3. 3 . The support mechanism according to claim 2 , wherein the first end of the first swing rod is rotatably disposed in the first limiting slot using a first rotation shaft; and wherein the first end of the second swing rod is rotatably disposed in the third limiting slot by using a second rotation shaft.
4. 4 . The support mechanism according to claim 1 , wherein a first mounting bracket is disposed on the surface of the first door plate that faces away from the flexible display, a first limiting sliding slot extends between the first end of the first swing rod and the second end of the first swing rod, a first end of the first mounting bracket is fastened to the first door plate, and a second end of the first mounting bracket is slidably disposed in the first limiting sliding slot; and wherein a second mounting bracket is disposed on the surface of the second door plate that faces away from the flexible display, a second limiting sliding slot extends between the first end of the second swing rod and the second end of the second swing rod, a first end of the second mounting bracket is fastened to the second door plate, and a second end of the second mounting bracket is slidably disposed in the second limiting sliding slot.
5. 5 . The support mechanism according to claim 4 , wherein the second end of the first mounting bracket is slidably disposed in the first limiting sliding slot using a first limiting shaft; and the second end of the second mounting bracket is slidably disposed in the second limiting sliding slot using a second limiting shaft.
6. 6 . The support mechanism according to claim 1 , wherein when the first door plate rotates to the first position and the second door plate rotates to the second position, the first door plate and the second door plate form the included angle, and the first swing rod and the second swing rod are parallel or form an included angle.
7. 7 . The support mechanism according to claim 1 , wherein a first protrusion extends from the surface of the first support arm that faces away from the first door plate, and the first protrusion abuts against the first end of the first swing rod, to push the first swing rod to rotate until the second end of the first swing rod abuts against the first support arm; and wherein a second protrusion extends from the surface of the second support arm that faces away from the second door plate, and the second protrusion abuts against the first end of the second swing rod, to push the second swing rod to rotate until the second end of the second swing rod abuts against the second support arm.
8. 8 . The support mechanism according to claim 1 , wherein a first elastic part is disposed between the first housing support and a first end of the first door plate that is farthest away from the module support, two ends of the first elastic part respectively abut against the first housing support and the first end of the first door plate that is farthest away from the module support, and the first elastic part is configured to push the first door plate to rotate to the first position; and wherein a second elastic part is disposed between the second housing support and a first end of the second door plate that is farthest away from the module support, two ends of the second elastic part respectively abut against the second housing support and the first end of the second door plate that is farthest away from the module support, and the second elastic part is configured to push the second door plate to rotate to the second position.
9. 9 . The support mechanism according to claim 1 , wherein a first torsion spring is disposed between the first housing support and the one end of the first door plate that is closest to the module support, the first torsion spring is rotatably disposed on the first housing support, the first torsion spring comprises a first rotation arm and a second rotation arm, the first rotation arm abuts against the one end of the first door plate that is closest to the module support, the second rotation arm abuts against the first housing support, and the first torsion spring is configured to push the first door plate to rotate to the first position; and a second torsion spring is disposed between the second housing support and the one end of the second door plate that is closest to the module support, the second torsion spring is rotatably disposed on the second housing support, the second torsion spring comprises a third rotation arm and a fourth rotation arm, the third rotation arm abuts against the one end of the second door plate that is closest to the module support, the fourth rotation arm abuts against the second housing support, and the second torsion spring is configured to push the second door plate to rotate to the second position.
10. 10 . The support mechanism according to claim 9 , wherein the first torsion spring is rotatably disposed on the first housing support by using a first coupling shaft; and wherein the second torsion spring is rotatably disposed on the second housing support by using a second coupling shaft.
11. 11 . The support mechanism according to claim 9 , wherein the first rotation module further comprises a first swing arm and a first connecting rod, at least a part of the first swing arm is disposed on the surface of the first door plate that faces away from the flexible display, the first swing arm and the first support arm are distributed along a length direction of the support mechanism, the first swing arm is rotatably connected to the module support, rotation axes of the first swing arm and the first support arm on the module support are different and parallel to each other, a first end of the first connecting rod is rotatably connected to the first swing arm, and a second end of the first connecting rod is rotatably connected to the first door plate; wherein the first torsion spring is rotatably disposed at the end of the first connecting rod that is rotatably connected to the first swing arm; wherein the second rotation module further comprises a second swing arm and a second connecting rod, at least a part of the second swing arm is disposed on the surface of the second door plate that faces away from the flexible display, the second swing arm and the second support arm are distributed along a length direction of the support mechanism, the second swing arm is rotatably connected to the module support, rotation axes of the second swing arm and the second support arm on the module support are different and parallel to each other, a first end of the second connecting rod is rotatably connected to the second swing arm, and a second end of the second connecting rod is rotatably connected to the second door plate; and wherein the second torsion spring is rotatably disposed at the end of the second connecting rod that is rotatably connected to the second swing arm.
12. 12 . An electronic device, comprising: a first housing; a second housing; a flexible display; and a support mechanism, comprising: a first rotation module, comprising a first door plate, a first support arm, a first housing support, and a first swing rod, the first door plate supports the flexible display, at least a part of the first support arm is disposed on a surface of the first door plate that faces away from the flexible display, at least a part of the first housing support is disposed on a surface of the first support arm that faces away from the first door plate, the first door plate is rotatably connected to the first housing support, the first support arm is slidably connected to the first housing support, at least a part of the first swing rod is disposed on the surface of the first door plate that faces away from the flexible display, the first swing rod is slidably connected to the first door plate, and a first end of the first swing rod is rotatably connected to the first housing support; a second rotation module, comprising a second door plate, a second support arm, a second housing support, and a second swing rod, wherein the second door plate supports the flexible display, at least a part of the second support arm is disposed on a surface of the second door plate that faces away from the flexible display, at least a part of the second housing support is disposed on a surface of the second support arm that faces away from the second door plate, the second door plate is rotatably connected to the second housing support, the second support arm is slidably connected to the second housing support, at least a part of the second swing rod is disposed on the surface of the second door plate that faces away from the flexible display, the second swing rod is slidably connected to the second door plate, and a first end of the second swing rod is rotatably connected to the second housing support; and a module support, wherein the first rotation module and the second rotation module are respectively disposed on two sides of the module support, the first support arm is rotatably connected to the module support, the second support arm is rotatably connected to the module support; wherein when the first housing support and the second housing support rotate relative to each other, the first housing support drives the first support arm to rotate around the module support, and the first housing support drives the first door plate to rotate relative to the first housing support, causing one end of the first door plate that is closest to the module support to move in a direction away from the module support; wherein the first door plate drives the first swing rod to rotate relative to the first housing support, causing a second end of the first swing rod to move in a direction away from the first door plate; wherein the second housing support drives the second support arm to rotate around the module support, and the second housing support drives the second door plate to rotate relative to the second housing support, causing one end of the second door plate that is closest to the module support to move in a direction away from the module support; wherein the second door plate drives the second swing rod to rotate relative to the second housing support, causing a second end of the second swing rod to move in a direction away from the second door plate; wherein when the first door plate rotates to a first position and the second door plate rotates to a second position, the first door plate and the second door plate form an included angle, the second end of the first swing rod abuts against the first support arm, and the second end of the second swing rod abuts against the second support arm; wherein the first housing and the second housing are respectively disposed on two sides of the support mechanism, the first housing is fastened to the first housing support, and the second housing is fastened to the second housing support; and wherein the flexible display contiguously covers the first housing, the second housing, and the support mechanism, and the flexible display is fastened to the first housing and the second housing.
13. 13 . The electronic device according to claim 12 , wherein a first limiting slot extends in a surface that is of the first housing support and that faces the first door plate, the first end of the first swing rod is rotatably disposed in the first limiting slot, a second limiting slot extends in a surface that is of the first support arm and that faces the first door plate, and the second end of the first swing rod abuts against the second limiting slot; and wherein a third limiting slot extends in a surface of the second housing support that faces the second door plate, the first end of the second swing rod is rotatably disposed in the third limiting slot, a fourth limiting slot extends in a surface of the second support arm that faces the second door plate, and the second end of the second swing rod abuts against the fourth limiting slot.
14. 14 . The electronic device according to claim 13 , wherein the first end of the first swing rod is rotatably disposed in the first limiting slot by using a first rotation shaft; and wherein the first end of the second swing rod is rotatably disposed in the third limiting slot by using a second rotation shaft.
15. 15 . The electronic device according to claim 12 , wherein a first mounting bracket is disposed on the surface of the first door plate that faces away from the flexible display, a first limiting sliding slot extends between the first end and the second end of the first swing rod, a first end of the first mounting bracket is fastened to the first door plate, and a second end of the first mounting bracket is slidably disposed in the first limiting sliding slot; and wherein a second mounting bracket is disposed on the surface of the second door plate that faces away from the flexible display, a second limiting sliding slot is provided between the first end and the second end of the second swing rod, a first end of the second mounting bracket is fastened to the second door plate, and a second end of the second mounting bracket is slidably disposed in the second limiting sliding slot.
16. 16 . The electronic device according to claim 15 , wherein the second end of the first mounting bracket is slidably disposed in the first limiting sliding slot by using a first limiting shaft; and wherein the second end of the second mounting bracket is slidably disposed in the second limiting sliding slot by using a second limiting shaft.
17. 17 . The electronic device according to claim 12 , wherein when the first door plate rotates to the first position and the second door plate rotates to the second position, the first door plate and the second door plate form the included angle, and the first swing rod and the second swing rod are parallel or form an included angle.
18. 18 . The electronic device according to claim 12 , wherein a first protrusion extends from the surface that is of the first support arm and that faces away from the first door plate, and the first protrusion abuts against the first end of the first swing rod, to push the first swing rod to rotate until the second end of the first swing rod abuts against the first support arm; and a second protrusion extends from the surface that is of the second support arm and that faces away from the second door plate, and the second protrusion abuts against the first end of the second swing rod, to push the second swing rod to rotate until the second end of the second swing rod abuts against the second support arm.
19. 19 . The electronic device according to claim 12 , wherein a first elastic part is disposed between the first housing support and a first end of the first door plate that is farthest away from the module support, two ends of the first elastic part respectively abut against the first housing support and the first end of the first door plate that is farthest away from the module support, and the first elastic part is configured to push the first door plate to rotate to the first position; and wherein a second elastic part is disposed between the second housing support and a first end of the second door plate that is away from the module support, two ends of the second elastic part respectively abut against the second housing support and the first end of the second door plate that is farthest away from the module support, and the second elastic part is configured to push the second door plate to rotate to the second position.
20. 20 . The electronic device according to claim 12 , wherein a first torsion spring is disposed between the first housing support and the one end of the first door plate that is closest to the module support, the first torsion spring is rotatably disposed on the first housing support, the first torsion spring comprises a first rotation arm and a second rotation arm, the first rotation arm abuts against the one end of the first door plate and that is closest to the module support, the second rotation arm abuts against the first housing support, and the first torsion spring is configured to push the first door plate to rotate to the first position; and a second torsion spring is disposed between the second housing support and the one end of the second door plate that is closest to the module support, the second torsion spring is rotatably disposed on the second housing support, the second torsion spring comprises a third rotation arm and a fourth rotation arm, the third rotation arm abuts against the one end of the second door plate and that is closest to the module support, the fourth rotation arm abuts against the second housing support, and the second torsion spring is configured to push the second door plate to rotate to the second position.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of International Application No. PCT/CN2023/142438, filed on Dec. 27, 2023, which claims priority to Chinese Patent Application No. 202310467146.6, filed on Apr. 19, 2023. The disclosures of the aforementioned applications are hereby incorporated by reference in their entireties. TECHNICAL FIELD This application relates to the field of electronic device technologies, and in particular, to a support mechanism and an electronic device. BACKGROUND Terminal display devices such as a mobile phone and a laptop are common tools for learning, working, and entertainment. It is difficult for a common terminal display device to satisfy both portability and large-screen display. With development of a flexible display, a foldable terminal display device is developed, so that portability of a terminal display device with a large screen is improved. When the foldable terminal display device falls, a middle frame of the device collapses and falls with a flexible display, and the flexible display fails due to collision and squeezing with other parts. Therefore, support of a hinge of the device for the middle frame needs to be strengthened. A current solution for supporting the middle frame with the hinge has poor effect. When the device falls, the flexible display is severely damaged. SUMMARY This application provides a support mechanism and an electronic device, to strengthen support of a hinge of a foldable terminal display device for a middle frame, and alleviate damage to a flexible display when the terminal display device falls. According to a first aspect, an embodiment of this application provides a support mechanism. The support mechanism may include a first rotation module, a second rotation module, and a module support. The first rotation module and the second rotation module are respectively disposed on two sides of the module support. The first rotation module may include a first door plate, a first support arm, a first housing support, and a first swing rod. The first door plate is used to support a flexible display. At least a part of the first support arm is disposed on a surface that is of the first door plate and that faces away from the flexible display. The first support arm is rotatably connected to the module support. At least a part of the first housing support is disposed on a surface that is of the first support arm and that faces away from the first door plate. The first door plate is rotatably connected to the first housing support. The first support arm is slidably connected to the first housing support. At least a part of the first swing rod is disposed on the surface that is of the first door plate and that faces away from the flexible display. The first swing rod is slidably connected to the first door plate, and a first end of the first swing rod is rotatably connected to the first housing support. The second rotation module may include a second door plate, a second support arm, a second housing support, and a second swing rod. The second door plate is used to support the flexible display. At least a part of the second support arm is disposed on a surface that is of the second door plate and that faces away from the flexible display. The second support arm is rotatably connected to the module support. At least a part of the second housing support is disposed on a surface that is of the second support arm and that faces away from the second door plate. The second door plate is rotatably connected to the second housing support. The second support arm is slidably connected to the second housing support. At least a part of the second swing rod is disposed on the surface that is of the second door plate and that faces away from the flexible display. The second swing rod is slidably connected to the second door plate, and a first end of the second swing rod is rotatably connected to the second housing support. When the first housing support and the second housing support rotate relative to each other, the first housing support drives the first support arm to rotate around the module support, and the first housing support drives the first door plate to rotate relative to the first housing support, so that one end that is of the first door plate and that is close to the module support moves in a direction away from the module support; the first door plate drives the first swing rod to rotate relative to the first housing support, so that a second end of the first swing rod moves in a direction away from the first door plate; the second housing support drives the second support arm to rotate around the module support, and the second housing support drives the second door plate to rotate relative to the second housing support, so that one end that is of the second door plate and that is close to the module support moves in a direction away from the module support; and the second door plate drives the second swing rod to rotate re