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

Claim 0:
1. An electronic expansion valve, comprising:
a valve seat (10) provided with an inlet (11), an outlet (12) and a communication channel (13) in communication with the inlet (11) and the outlet (12);
an actuator (20) movably mounted in the valve seat (10), wherein the actuator (20) is provided with a first position to block the communication channel (13) and a second position to avoid the communication channel (13); and
a driving mechanism (30) connected to the actuator (20) to drive the actuator (20) to move between the first position and the second position, wherein the driving mechanism (30) comprises at least one noise reduction members to reduce noise of the electronic expansion valve;
wherein the driving mechanism (30) further comprises a connection sleeve assembly (1-35), a guide sleeve (1-40) and a first noise reduction member (1-33) in the at least one noise reduction member, the guide sleeve (1-40) being fixed in the valve seat (10), the connection sleeve assembly (1-35) being connected to the actuator (20), the connection sleeve assembly (1-35) being movably arranged in the guide sleeve (1-40), and the first noise reduction member (1-33) being arranged between the guide sleeve (1-40) and the connection sleeve assembly (1-35).