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US 11,959,561 B2Granted
Electronic expansion valve and refrigeration system
AssigneeZhejiang Dunan Artificial Environment Co., Ltd.
InventorYuchen He
Life of this patent
Estimating the term…
Abstract
Disclosed are an electronic expansion valve and a refrigeration system. The electronic expansion valve includes: a valve seat provided with an inlet, an outlet and a communication channel in communication with the inlet and the outlet; an actuator movably mounted in the valve seat, wherein the actuator is provided with a first position to block the communication channel and a second position to avoid the communication channel; and a driving mechanism connected with the actuator to drive the actuator to move between the first position and the second position, wherein the driving mechanism includes noise reduction members to reduce noise of the electronic expansion valve.
Claims32
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).
2 more elements
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) further comprises a rotor (1-36), a lead screw (1-31), a nut seat (1-32) and a second noise reduction member (1-34) in the at least one noise reduction member, the rotor (1-36) being connected to the lead screw (1-31), the lead screw (1-31) penetrating into the nut seat (1-32), the lead screw (1-31) being connected to the actuator (20) by a connection sleeve assembly (1-35), and the second noise reduction member (1-34) being arranged between the lead screw (1-31) and the nut seat (1-32);
- wherein the lead screw (1-31) comprises a guide section (1-311), an external thread section (1-312) and a transition section (1-315), a first end of the transition section (1-315) being connected with an end, close to the actuator (20), of the external thread section (1-312), and a second end of the transition section (1-315) being connected with the guide section (1-311).
2 more elements
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) further comprises a lead screw (2-31), a nut seat (2-32) and a third noise reduction member (2-33) in the at least one noise reduction member, the lead screw (2-31) penetrating into the nut seat (2-32), and the third noise reduction member (2-33) being arranged between the lead screw (2-31) and the nut seat (2-32);
- wherein the lead screw (2-31) comprises a fixed section (2-311) and an external thread section (2-312), and the nut seat (2-32) comprises an internal thread section (2-321) and an unthreaded hole section (2-322), the external thread section (2-312) cooperating with the internal thread section (2-321), the fixed section (2-311) being arranged corresponding to the unthreaded hole section (2-322), and the third noise reduction member (2-33) being located between the fixed section (2-311) and the unthreaded hole section (2-322).
3 more elements
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).
2 more elements
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 electronic expansion valve comprises:
- a first connection pipe (4-2) sleeved an end of the valve seat (10);
- wherein
- the end of the valve seat (10) is provided with an annular groove structure (4-12) and provided with a boss structure (4-11) connected to the annular groove structure (4-12);
- a welding ring (4-3) clamped into a groove of the annular groove structure (4-12) and connected to an inner wall of the first connection pipe (4-2);
- and
- the valve seat (10) is in clearance fit with the first connection pipe (4-2), and the welding ring (4-3) is in interference fit with the first connection pipe (4-2).
7 more elements
Dependencies are inferred from the claim text.