Electronic expansion valve

The utility model relates to the technical field of refrigeration, in particular to an electronic expansion valve. An electronic expansion valve comprises a casing pipe, a first rotor, a second rotor,a sensor and a control panel, and the first rotor and the second rotor are both arranged in the casing pipe. The sensor is arranged on the outer side of the sleeve, electrically connected with the control panel and used for detecting the rotation angle of the first rotor; wherein the second rotor drives the first rotor to rotate synchronously, the first rotor and the second rotor are respectivelyprovided with a plurality of pairs of magnetic poles, and the magnetic pole pair number of the first rotor is N (N is a natural number and N is greater than 0) times of the magnetic pole pair numberof the second rotor. The device has the advantages that more polarity change signals can be detected, and the detection precision of angle rotation is improved. 本实用新型涉及一种制冷技术领域，特别是涉及电子膨胀阀。一种电子膨胀阀，包括套管、第一转子、第二转子、传感器以及控制板，所述第一转子和