Patent ID: 11859728
Assignee: ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CONTROLS CO., LTD.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. An electric valve, comprising a housing component, a valve body component, a control component and a gear reduction mechanism,
wherein the housing component is fixedly connected to the valve body component, a valve chamber of the electric valve comprises an inner chamber of the housing component and an inner chamber of the valve body component, and the inner chamber of the housing component is in communication with the inner chamber of the valve body component;
the control component and the gear reduction mechanism are arranged in the inner chamber of the housing component, the control component comprises a motor and an input gear, the motor is rotatably connected with the input gear, a stator and a rotor of the motor are located above the gear reduction mechanism, the gear reduction mechanism comprises a planetary gear and an output gear carrier, the input gear meshes with the planetary gear, and the planetary gear is configured to drive the output gear carrier to rotate; and
the valve body component comprises a valve body, a first valve seat, a valve core and a transmission shaft, the valve body is fixedly connected to the first valve seat, the valve core is arranged in the inner chamber of the valve body component, the output gear carrier is rotatably connected to the transmission shaft, and the transmission shaft is rotatably connected to the valve core,
one end of the transmission shaft extends into a hole portion of the output gear carrier, the output gear carrier is configured to drive the transmission shaft to rotate, another end of the transmission shaft extends into a groove of the valve core, and the transmission shaft is configured to drive the valve core to rotate,
the motor comprises a rotating shaft, the rotating shaft is fixedly connected to the input gear, a circumferential outer wall of the input gear comprises a sun gear, the gear reduction mechanism further comprises a gear ring and a partition plate, the gear ring is fixedly connected to the partition plate, the gear ring is substantially cylindrical, at least part of the sun gear is located in an inner chamber of the gear ring, the planetary gear is located in the inner chamber of the gear ring, the sun gear meshes with the planetary gear, the partition plate comprises a center hole, the motor comprises a lower bearing close to the input gear, at least part of the lower bearing is located in the center hole, and the lower bearing is in clearance fit with the center hole.