ELECTRONIC EXPANSION VALVE

摘要

The utility model provides a novel electronic expansion valve which is characterized in that a rotor core which is divided into two halves is sleeved inside a magnet to form an integral rotary rotor, so that a half threaded opening section which is paired with outer threads of a supporting rod, a rotor core movable cavity section which is wider than the half threaded opening section, a narrow valve needle shaft hole section and a valve needle tail groove section which is wider than the valve needle shaft hole section can be machined along the axis of a half rotor core, a half installation hole consisting of the half threaded opening section, the rotor core movable cavity section, the narrow valve needle shaft hole section and the valve needle tail groove section can be used for holding a supporting rod with an upper limiting platform and a lower limiting platform on the upper end and a valve needle with a shoulder, the lifting brake of the magnet and the rotor core is realized through the upper and lower limiting platforms in the rotor movable cavity section of the half rotor core and between the supporting rods, and the situation of the existing electronic expansion valve that up-down stop is realized by additionally providing multiple components can be avoided, so that the components of the expansion valve are few, the structure is simpler, and easiness in assembling can be realized. The novel electronic expansion valve is simple and reasonable in structure, high in production efficiency and low in production cost.