Electric ball valve and manufacturing method therefor

An electric ball valve, comprising a control component, a gear reduction mechanism, a valve body component and a housing component, wherein

• the control component comprises a cover body and a rotor component arranged in the cover body;
• the gear reduction mechanism is arranged in an inner cavity of the housing component, the gear reduction mechanism comprises an input gear component and an output gear carrier, and a rotating shaft of the rotor component is configured to drive the input gear component to rotate in a circumferential direction;
• the valve body component comprises a valve body, a valve stem, a first valve seat, and a valve core;
• the first valve seat is fixedly connected with the valve body, and the valve core is arranged in an inner cavity of the valve body component;
• one end of the valve stem extends into a central hole of the output gear carrier, and the output gear carrier is configured to drive the valve stem to rotate in the circumferential direction;
• another end of the valve stem extends into a groove of the valve core, and the valve stem is configured to drive the valve core to rotate in the circumferential direction;
• and
• the housing component comprises an upper housing portion and a lower housing portion,
• the cover body, the upper housing portion and the lower housing portion are made of stainless steel material,
• the cover body is fixed to the upper housing portion by welding, the upper housing portion is fixed to the lower housing portion by welding, and the lower housing portion is fixed to the valve body by welding.