Rotating module and electronic device
A rotating module is provided and includes two rotating arms, and a bracket having a track groove and located between the two rotating arms. Each rotating arm includes a first rotating piece, a first end of which is located in the track groove; and a second rotating piece connected with the bracket and a second end of the first rotating piece respectively. In a folded state, a rotation center of the first rotating piece is a first position on the groove wall of the track groove; in an unfolded state, the rotation center of the first rotating piece is a second position on the groove wall of the track groove. The second position is located between a center position of the track groove and the first position, and the rotation center of the first rotating piece is one rotation center of the rotating arm.
1. A rotating module, comprising:
two rotating arms; and
a bracket, having a track groove and located between the two rotating arms, wherein the two rotating arms are capable of rotating around the bracket with rotation centers of the two rotating arms; wherein
each rotating arm comprises:
a first rotating piece, wherein a first end of the first rotating piece is located in the track groove; and
a second rotating piece, rotatably connected with the bracket and a second end of the first rotating piece respectively, wherein the second end is an opposite end of the first end;
when the rotating module is in a folded state, a rotation center of the first rotating piece is a first position on a groove wall of the track groove;
when the rotating module is in an unfolded state, the rotation center of the first rotating piece is a second position on the groove wall of the track groove, and the second position is located between a center position of the track groove and the first position; and
the rotation center of the first rotating piece is one rotation center of the rotating arm;
wherein the second rotating piece further has: a groove, and the groove wall of the groove is in an arc shape; and
wherein the second end of the first rotating piece is located in the groove.
2. The rotating module according to claim 1 , wherein the groove wall of the track groove has: a first mounting hole;
the second rotating piece has: an axle hole aligned with the first mounting hole; and
the rotating module further comprises: a central spindle, wherein the central spindle penetrate through the first mounting hole and the axle hole.
3. The rotating module according to claim 1 , wherein the groove wall of the track groove is in an elliptic arc shape or in a circular arc shape.
4. The rotating module according to claim 1 , wherein
the first rotating piece further comprises:
a first tooth part, located in a region other than the first end and the second end of the first rotating piece; and
each rotating arm further comprises:
a first gear structure, meshing with the first tooth part.
5. The rotating module according to claim 4 , wherein the first rotating piece further comprises: a hinge pin; and
the rotating module further comprises:
a connecting piece, having at least two connecting holes, wherein the at least two connecting holes respectively accommodate the hinge pin and a gear shaft of the first gear structure to limit separation of the first gear structure from the first tooth part.
6. The rotating module according to claim 4 , wherein the two rotating arms further comprise:
a supporting frame, connected with the first gear structure and having a mounting position, wherein the mounting position is configured to be connected with a shell of an electronic device.
7. The rotating module according to claim 6 , wherein the two rotating arms further comprise:
a connecting rod, having a first part and a second part connected with the first part, wherein the first part comprises a second tooth part, and the second part is connected with the supporting frame; and
a second gear structure, wherein a gear shaft of the second gear structure is connected with the bracket, and the second gear structure meshes with the second tooth part; and
the second gear structures of the two rotating arms mesh with each other.
8. The rotating module according to claim 7 , wherein the supporting frame comprises:
a first supporting frame body, having a mounting position and connected with the first gear structure; and
a second supporting frame body, connected with the first supporting frame body and having a sliding groove; and
the second part of the connecting rod is located in the sliding groove.
9. The rotating module according to claim 7 , wherein the groove wall of the track groove has: a second mounting hole;
the connecting rod further has: a through hole; and
the rotating module further comprises: a lever pin, penetrating through the through hole and the second mounting hole, wherein the lever pin is also used as a rotating shaft of the second tooth part during meshing rotation.
10. An electronic device, comprising:
a first shell;
a second shell; and
a rotating module, wherein
the rotating module comprises:
two rotating arms; and
a bracket, having a track groove and located between the two rotating arms, wherein the rotating arms are capable of rotating around the bracket with rotation centers of the rotating arms; wherein
each rotating arm comprises:
a first rotating piece, wherein a first end of the first rotating piece is located in the track groove; and
a second rotating piece, rotatably connected with the bracket and a second end of the first rotating piece respectively, wherein the second end is an opposite end of the first end;
when the rotating module is in a folded state, a rotation center of the first rotating piece is a first position on a groove wall of the track groove;
when the rotating module is in an unfolded state, the rotation center of the first rotating piece is a second position on the groove wall of the track groove, and the second position is located between a center position of the track groove and the first position; and
the rotation center of the first rotating piece is one rotation center of the rotating arm;
the first shell and the second shell are respectively connected with one of the rotating arms;
wherein the second rotating piece further has: a groove, and the groove wall of the groove is in an arc shape; and
wherein the second end of the first rotating piece is located in the groove.