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

Claim 21:
22. The electronic expansion valve according to claim 21, wherein the lead screw (3-31) comprises a fixed section (3-311) and an external thread section (3-312), the fixed section (3-311) being located on a side, away from the actuator (20), of the external thread section (3-312), and the nut seat (3-32) comprises an internal thread section (3-321) and an unthreaded hole section (3-322), the external thread section (3-312) cooperating with the internal thread section (3-321), and the fixed section (3-311) being arranged corresponding to the unthreaded hole section (3-322).