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

Claim 14:
15. 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 member to reduce noise of the electronic expansion valve; wherein the driving mechanism (30) comprises a guide sleeve (3-40) and a fifth noise reduction member (3-33) in the at least one noise reduction member, the guide sleeve (3-40) being located in the valve seat (10), the actuator (20) being at least partially arranged in the guide sleeve (3-40), and the fifth noise reduction member (3-33) being arranged between the guide sleeve (3-40) and the actuator (20).