Abstract: An electronic expansion valve comprising a screw rod and a motor provided with an output shaft. The output shaft is transmissively connected to the screw rod via a gear system. The gear system is supported on a gear base. The screw rod passes through the gear base. The electronic expansion valve also comprises a valve base provided with valve cavity and a motor housing arranged on the exterior of the motor. The gear base is further arranged within the valve cavity. The upper end part of the valve base is further connected to the lower end part of the motor housing. The structural design of the electronic expansion valve reduces the number of sealed parts for same, thus effectively lowering the probability of leakage and simplifying the assembly structure thereof.

Abstract: The present invention provides an electronic expansion valve, comprising a leading screw, a valve needle and a valve needle sleeve. It further comprises: a washer provided in an annular groove, which is provided at the lower end of the leading screw in the circumferential direction, and a thickness of the washer is less than a width of the annular groove; the valve needle sleeve abuts against the upper surface of the washer and is fixedly connected with the valve needle; and a spring is provided between the washer and the valve needle.

Abstract: The present invention discloses a valve body device for an electric control valve comprising a valve seat (21) and a fixing frame (22) connected with the valve seat (21), wherein, the valve seat (21) is provided on its outer wall with a first positioning groove (211) extending circumferentially, and the direction towards which the first positioning groove (211) opens is perpendicular to the axial direction of the valve seat (21), and wherein, the fixing frame (22) is provided with a positioning flat plate portion (221) fitted with the first positioning groove (211), and the positioning flat plate portion (221) is inserted into the first positioning groove (211) and fixedly connected with the valve seat (21).

Abstract: The present invention discloses an electromagnetic coil means, comprising a terminal part and pins passing through the terminal part, wherein the pins are divided into a first group of pins connected with an upper coil stator and a second group of pins connected with a lower coil stator which are spaced apart from each other; the first group of pins comprises first outer sections with first head portions and first inner sections with first root portions; the second group of pins comprising second outer sections with second head portion and second inner sections with second root portions; the first and second head portions extend out from a pin leading-out surface of the terminal part, characterized in that, at least one group of the first and second groups of pins are bent, and a distance between adjacent said first and second head portions is larger than that between adjacent said first and second root portions.

Abstract: The present invention provides an electronic expansion valve, comprising a leading screw, a valve needle and a valve needle sleeve. It further comprises: a washer provided in an annular groove, which is provided at the lower end of the leading screw in the circumferential direction, and a thickness of the washer is less than a width of the annular groove; the valve needle sleeve abuts against the upper surface of the washer and is fixedly connected with the valve needle; and a spring is provided between the washer and the valve needle. By arranging the washer in the annular groove provided at the lower end of the leading screw in the circumferential direction, with the thickness of the washer being less than the width of the annular groove, and by arranging the spring between the valve needle and the washer, the washer is enabled to rotate around the annular groove in the circumferential direction and move up and down in the annular groove, improving the reliability of the electronic expansion valve.

Abstract: The present invention discloses a valve body device for an electric control valve comprising a valve seat (21) and a fixing frame (22) connected with the valve seat (21), wherein, the valve seat (21) is provided on its outer wall with a first positioning groove (211) extending circumferentially, and the direction towards which the first positioning groove (211) opens is perpendicular to the axial direction of the valve seat (21), and wherein, the fixing frame (22) is provided with a positioning flat plate portion (221) fitted with the first positioning groove (211), and the positioning flat plate portion (221) is inserted into the first positioning groove (211) and fixedly connected with the valve seat (21).

Abstract: The present invention discloses an electromagnetic coil means, comprising a terminal part and pins passing through the terminal part, wherein the pins are divided into a first group of pins connected with an upper coil stator and a second group of pins connected with a lower coil stator which are spaced apart from each other; the first group of pins comprises first outer sections with first head portions and first inner sections with first root portions; the second group of pins comprising second outer sections with second head portion and second inner sections with second root portions; the first and second head portions extend out from a pin leading-out surface of the terminal part, characterized in that, at least one group of the first and second groups of pins are bent, and a distance between adjacent said first and second head portions is larger than that between adjacent said first and second root portions.