Abstract: An induction motor stator encapsulate method, including arranging a stator of an induction motor in a case of the induction motor, wherein the stator comprises a stator core and a stator winding surrounding the stator core; filling a first encapsulating material into the case for forming a first insulation layer, wherein the first insulation layer directly covers the stator winding; and filling a second encapsulating material into the case for forming a second insulation layer, wherein the second insulation layer covers the first insulation layer; wherein a shrink rate of the first encapsulating material is smaller than a shrink rate of the second encapsulating material.

Abstract: An induction motor stator encapsulate method, including arranging a stator of an induction motor in a case of the induction motor, wherein the stator comprises a stator core and a stator winding surrounding the stator core; filling a first encapsulating material into the case for forming a first insulation layer, wherein the first insulation layer directly covers the stator winding; and filling a second encapsulating material into the case for forming a second insulation layer, wherein the second insulation layer covers the first insulation layer; wherein a shrink rate of the first encapsulating material is smaller than a shrink rate of the second encapsulating material.

Abstract: An installation system of inverter wires and motor wires includes a plurality of positioning modules, a driving device and a control unit. Each positioning module includes a positioning unit and a pressure sensor. The positioning unit corresponds to a fixing hole of a motor wire of a motor. The pressure sensor is arranged on the positioning unit and configured to sense a pressure applied from an inverter wire of an inverter. The driving device is configured to drive the positioning unit to penetrate through or away from the fixing hole of the motor wire according to whether a pressure applied from the inverter wire is greater than a predetermined value, such that a fixing hole of the inverter wire is able to be aligned with the fixing hole of the motor wire and the fixing hole of the junction block.

Abstract: A rotor of an induction motor includes a core assembly including a plurality of core discs formed with a plurality of slots; a plurality of conductive bars passing through the slots, each of the conductive bars having a first end and a second end respectively extended out of a first end surface and a second end surface of the core assembly; a first end ring assembly including a plurality of first conductive rings stacked on each other and penetrated by the first ends of the conductive bars; and a second end ring assembly including a plurality of second conductive rings stacked on each other and penetrated by the second ends of the conductive bars; wherein the first conductive rings and the second conductive rings are respectively welded to the first ends and the second ends of the conductive bars by electron beam welding or laser welding.