Patent ID: 11959561
Assignee: ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 28:
29. The electronic expansion valve according to claim 28, further comprising:
a cover body (4-6) mounted on the valve seat (10), the accommodation cavity (4-16) being defined by the cover body (4-6) and the valve seat (10);
a lifting assembly (4-7) arranged in the accommodation cavity (4-16), having a central axis coinciding with a central axis of the valve seat (10), and configured to rotate to drive the valve needle (4-5) to ascend and descend along the central axis of the valve seat (10);
a rotor assembly (4-8) rotationally mounted in the cover body (4-6); and
a lead screw assembly (4-9) mounted in the cover body (4-6) and having an axial limiting end connected to the lifting assembly (4-7), wherein the rotor assembly (4-8) is arranged around the lead screw assembly (4-9) and is configured to drive the lead screw assembly (4-9) to rotate and axially move.