CN-121993486-A - Hinge mechanism and terminal equipment

Abstract

The application provides a hinge mechanism and terminal equipment. The hinge mechanism provided by the application is applied to terminal equipment and can drive two frames of the terminal equipment to rotate relatively, the hinge mechanism comprises a rotating assembly, a thrust assembly and a locking assembly, the rotating assembly comprises a fixed support and two swing rod units, the two swing rod units can rotate relatively around mutually parallel rotating shafts, the fixed support is provided with first cam parts which are in one-to-one correspondence with the swing rod units, the first cam parts are abutted with the first ends of the swing rod units, the thrust assembly is abutted with the second ends of the swing rod units, the thrust assembly is used for applying thrust to the swing rod units along the rotating shafts, and the locking assembly is arranged on the fixed support and is abutted with the first ends of the swing rod units. The hinge mechanism provided by the application can enable the two swing rod units to automatically rotate under the action of the thrust component, thereby realizing the automatic opening of the terminal equipment.

Inventors

• KATO HIDEO
• ZOU YAKE
• Kenji Changjing
• ZHAN QIANG
• HUANG TAO
• Ishiha Akio

Assignees

• 华为技术有限公司

Dates

Publication Date

20260508

Application Date

20200930

Claims (20)

1. 1. The hinge mechanism is applied to terminal equipment, and is provided with two frames capable of rotating relatively, and is characterized by comprising a rotating assembly, a thrust assembly and a locking assembly, wherein the rotating assembly comprises a fixed bracket and two swing rod units, the two swing rod units are respectively connected with the two frames of the terminal equipment, and the two swing rod units can rotate relatively around mutually parallel rotating shafts; The fixed support is provided with first cam parts which are in one-to-one correspondence with the swing rod units, the first cam parts are in butt joint with the first ends of the swing rod units, the thrust component is in butt joint with the second ends of the swing rod units, and the thrust component is used for applying thrust to the swing rod units along the rotating shafts so that the swing rod units rotate along the outline of the first cam parts under the action of the thrust; The locking component is arranged on the fixed bracket, the locking component is provided with a second cam part, the top end of the second cam part is provided with a second annular cam surface, the second cam surface has different axial heights at different positions in the circumferential direction, the second cam surface is abutted with the swing rod unit, and the second cam surface and the first cam surface have different profiles in the circumferential direction; when the locking assembly is in a locking state, the locking assembly blocks the rotation of the two swing rod units.
2. 2. The hinge mechanism of claim 1, wherein the two pendulum members are relatively closed when the locking assembly is in the locked state.
3. 3. The hinge mechanism according to claim 1 or 2, wherein the first cam portion has a hollow cylindrical structure, a bottom end of the first cam portion is connected to the fixed bracket, a top end of the first cam portion extends along a rotation axis of the swing link unit, and a top end of the first cam portion has a first cam surface in a ring shape, and different positions in a circumferential direction of the first cam surface have different axial heights; The first end of the swing rod unit is abutted with the first cam surface, and when the axial position of the swing rod unit changes, the swing rod unit relatively slides along the first cam surface so as to rotate around the rotating shaft.
4. 4. A hinge mechanism according to claim 3, wherein the first end of the swing link unit has a contact portion extending along the rotation axis, the contact portion protruding toward the fixed bracket and abutting the first cam surface.
5. 5. The hinge mechanism according to claim 4, wherein the locking assembly includes a locking member, the locking member is sleeved outside the first cam portion and abuts against the first end of the swing rod unit, the profile of the locking member is located on the moving track of the first end of the swing rod unit, and the locking member is rotatable around the rotation axis; the locking member is fixed relative to the rotational shaft when the locking assembly is in the locked state.
6. 6. The hinge mechanism according to claim 5, wherein the lock member has the second cam portion, a tip end of the second cam portion extends along a rotation axis of the swing link unit, the second cam surface is located outside a shape surrounded by the first cam surface, and the second cam surface abuts against the first end of the swing link unit.
7. 7. The hinge mechanism according to claim 6, wherein a highest point of the second cam surface is located in front of a moving locus of the first end of the swing lever unit when the swing lever unit rotates under the thrust of the thrust member, and the highest point of the second cam surface abuts the first end of the swing lever unit.
8. 8. The hinge mechanism according to claim 7, wherein when the swing rod unit is in the relatively closed position, the highest point of the first cam surface and the highest point of the second cam surface are mutually staggered to jointly enclose a clamping groove, and the first end of the swing rod unit is clamped in the clamping groove.
9. 9. The hinge mechanism according to claim 7, wherein the second cam surface rotates at an angle twice as large as the first cam surface when the swing link unit rotates.
10. 10. The hinge mechanism of claim 7, wherein the contact portion corresponds to a high point of the profile curves of the first cam surface and the second cam surface when the swing link unit is in the closed state, and wherein the contact portion corresponds to a low point of the profile curves of the first cam surface and the second cam surface when the swing link unit is in the extended state.
11. 11. A hinge mechanism according to any one of claims 6 to 10, wherein the profile of the second cam surface includes a straight section perpendicular to the axis of rotation, the straight section being located between the highest and lowest points of the second cam surface.
12. 12. The hinge mechanism according to any one of claims 5 to 11, wherein the locking assembly further comprises a key, a first elastic member and a locking block, the locking block is provided with a first inclined surface, the key is provided with a second inclined surface which is matched with the first inclined surface, and an included angle is formed between the first inclined surface and the second inclined surface and the rotating shaft; The first elastic piece is connected to the locking piece and used for applying elastic force to the locking piece, and the locking piece is used for sliding to a position abutting against the locking piece under the action of the elastic force of the first elastic piece so as to enable the locking assembly to be in the locking state or sliding to a position out of contact with the locking piece under the pushing of the key so as to enable the locking assembly to be unlocked.
13. 13. The hinge mechanism according to claim 12, wherein said lock assembly includes two of said lock blocks, said first elastic member is disposed between two of said lock blocks, and an elastic direction of said first elastic member is directed in a direction in which two of said lock blocks are away from each other; The key is provided with two second inclined planes which are matched with the first inclined planes of the locking blocks respectively.
14. 14. A hinge mechanism according to claim 12 or 13, wherein a notch is provided in a side wall of the locking member, and the locking block is engageable in the notch when the locking block abuts the locking member to bring the locking assembly into the locked condition.
15. 15. The hinge mechanism of claim 14, wherein the notches are two and are disposed on opposite sides of the locking member.
16. 16. A hinge mechanism according to any one of claims 12 to 15, wherein the fixing bracket is provided with a through hole for the locking blocks to pass through, and when the two locking blocks are separated from each other under the elastic force of the first elastic member, the side walls of the locking blocks are abutted against the edges of the through hole.
17. 17. The hinge mechanism according to any one of claims 1-16, wherein the thrust assembly includes a first baffle, a second baffle, and a second elastic member disposed between the first baffle and the second baffle, the first baffle abutting the second end of the pendulum unit, and the second elastic member being configured to apply an elastic force to the first baffle to cause the first baffle to urge the pendulum unit to rotate.
18. 18. The hinge mechanism of claim 17, further comprising two first positioning rods, the two first positioning rods and the two swing rod units being disposed respectively and correspondingly, the first positioning rods passing through the fixed support, the swing rod units and the thrust assembly in sequence to form the rotating shaft of the swing rod units, a first end of the first positioning rods being connected to a side of the fixed support facing away from the swing rod units, and a second end of the first positioning rods being fixed to a side of the thrust assembly facing away from the swing rod units.
19. 19. The hinge mechanism of claim 18, wherein the thrust assembly further comprises a third baffle disposed on a side of the second baffle facing away from the second elastic member, the third baffle having a chute disposed thereon, the second end of the first positioning rod being snapped into the chute.
20. 20. The hinge mechanism of claim 18, wherein the second resilient member is sleeved on the first positioning rod.

Description

Hinge mechanism and terminal equipment The present application is a divisional application, the application number of the original application is 202011069902.2, the original application date is 9 months 30 days in 2020, and the whole content of the original application is incorporated by reference into the present application. Technical Field The present application relates to the field of electronic devices, and in particular, to a hinge mechanism and a terminal device. Background Along with the development of scientific technology, the diversified screen provides more application choices for terminal equipment such as mobile phones, and particularly along with the development and maturity of flexible screen technology, the development of the terminal equipment with the foldable screen becomes realistic by utilizing the characteristic that the flexible screen can be bent and folded. Among various products equipped with a flexible screen, a folder-type terminal device generally has two bodies connected by a hinge mechanism and relatively rotatable, the flexible screen covers the surfaces of the two bodies, and the hinge mechanism supporting the folder-type product is a key component for realizing the folding function of the flexible screen. Currently, the main current folding terminal device is manually opened and closed, and when the user uses the folding terminal device, the user needs to hold one main body of the terminal device with one hand and flip the other main body of the terminal device with the other hand, so that the folding terminal device is unfolded from a folded state. Therefore, the folding terminal device in the prior art is inconvenient to open, and the user experience is poor. Disclosure of Invention The application provides a hinge mechanism and terminal equipment, which can realize automatic opening of folding terminal equipment and improve user experience. The hinge mechanism comprises a rotating assembly, a thrust assembly and a locking assembly, wherein the rotating assembly comprises a fixed support and two swing rod units, the two swing rod units are respectively connected with the two frames of the terminal equipment and can respectively rotate around mutually parallel rotating shafts, first cam portions which are in one-to-one correspondence with the swing rod units are arranged on the fixed support, the first cam portions are abutted with first ends of the swing rod units, the thrust assembly is abutted with second ends of the swing rod units, and the thrust assembly is used for applying thrust to the swing rod units along the rotating shafts so that the swing rod units rotate along the outline of the first cam portions under the action of the thrust. The locking assembly is arranged on the fixed support and is abutted with the first ends of the swing rod units, and when the locking assembly is in a locking state, the locking assembly is stopped on the moving track of the first ends of the swing rod units so as to prevent the rotation of the two swing rod units. Therefore, the two swing rod units can automatically rotate under the action of the thrust component by controlling the locking state of the locking component, so that the terminal equipment can be automatically opened, and the operation of a user is facilitated. As an alternative embodiment, the two pendulum units are relatively closed when the locking assembly is in the locked state. Therefore, when the hinge mechanism is not in use, the hinge mechanism can be kept in a closed state, and when the hinge mechanism is in use, the hinge mechanism can be automatically unfolded only by unlocking the locking assembly. As an alternative embodiment, the first cam part is a hollow cylindrical structure, the bottom end of the first cam part is connected to the fixed bracket, the top end of the first cam part extends along the rotating shaft of the swing rod unit, the top end of the first cam part is provided with a first annular cam surface, and different positions of the first cam surface in the circumferential direction are provided with different axial heights, so that the swing rod unit can move axially under the action of the thrust component. The first end of the swing rod unit is abutted against the first cam surface, and when the axial position of the swing rod unit changes, the swing rod unit can relatively slide along the first cam surface and simultaneously rotate around the rotating shaft of the swing rod unit. In this way, the cam structure is utilized to convert the axial movement of the thrust component driving the swing rod unit into the rotation of the swing rod unit. As an alternative embodiment, the first end of the swing link unit has a contact portion extending along its rotation axis, the contact portion protruding toward the fixed bracket and abutting against the first cam surface of the first cam portion. Thus, the contact part can slide along the first cam surface, and the reaction force of the first ca