ELECTRONIC EXPANSION VALVE

• Main Authors: ZHU, Fangying, KANG, Zhijun
• Format: Patent
• Language: Chinese; English; French
• Published: 25.05.2023
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

Disclosed is an electronic expansion valve, comprising: a valve casing (10) having a valve cavity (11) and a valve port (12) communicated with each other; a nut seat (30) provided in the valve cavity (11) and connected to the valve casing (10) and provided with a threaded through hole (31); a valve needle (20) movably provided in the threaded through hole (31) in a penetrating mode and provided with a first end (21) and a second end (22) opposite to each other, wherein external threads are arranged on the valve needle (20), the external threads are threadedly connected to the threaded through hole (31), the second end (22) is provided corresponding to the valve port (12), and the second end (22) is used for controlling the opening degree of the valve port (12); a magnetic rotor (40) rotatably provided in the valve cavity (11); a connecting plate (50) provided between the magnetic rotor (40) and the valve needle (20) and provided with a first through hole, wherein the first end (21) of the valve needle (20) pa