A motor includes a housing and a metal shield plate. The housing includes a bearing holder. The shield plate includes a shield plate main body and a protrusion that protrudes upward from the shield plate main body. The protrusion has a tubular shape. In manufacturing the motor, the protrusion of the shield plate is inserted into a through-hole in the bearing holder. A working deformation portion is then formed such that an upper end of the protrusion is deformed to contact an upper surface of the bearing holder.

An electrical conductor for a rotating electrical machine wound component includes a body formed of an electrically conductive material and a coating layer formed of an electrically insulating material, the coating layer partially covering the body. The conductor is formed of a first portion, referred to as the main portion, in which the body is covered by the coating layer, a second portion, referred to as the intermediate portion, in which the body is covered with residue of the coating layer, and a third portion, referred to as the stripped portion, in which the body is bare. The intermediate portion is arranged between the main portion and the stripped portion.

The invention relates to an apparatus and a method for reshaping one or more conductor pieces arranged in a stator core, wherein a plurality of conductor pieces is arranged in the stator core, the conductor pieces being arranged on a plurality of circular paths running in a circumferential direction in rows which extend in a radial direction, and wherein the reshaping takes place in a free end of the conductor piece projecting out of the stator core.

The invention relates to an apparatus and a method for shaping one or more conductor pieces arranged in a stator core, wherein the conductor piece is a hairpin with two elongate legs and a connection portion connecting these two legs, wherein a large number of conductor pieces is arranged in the stator core, which conductor pieces are arranged in rows extending in a radial direction on a plurality of circular paths extending in a circumferential direction, and wherein the shaping takes place in a free end of the conductor piece that projects from the stator core.

An inspection device includes: a base; a linear motion mechanism which performs linear motion; a link mechanism which has a driven link connected to the base, and which extends/contracts by the linear motion performed by the linear motion mechanism; a connection mechanism for connecting between a driving link of the link mechanism and the linear motion mechanism; and a sensor. The connection mechanism has a link connection portion connected to the link mechanism, and a ball nut that moves in conjunction with the linear motion performed by the linear motion mechanism. When a force higher than or equal to a predetermined force is applied to the link mechanism, the link connection portion is separated from the ball nut so as to contract the link mechanism.

A widening apparatus for a hairpin-type stator coil is provided to extend a distance between welding portions of hairpin-type stator coils inserted into slots of a stator core, and the widening apparatus includes, a coil support unit installed on a base frame, a tool driving unit installed on the base frame to be vertically movable below the coil support unit, and including a first gear operation part and a second gear operation part, a plurality of lower widening tools operably connected to the first gear operation part, and reciprocally movable along a layer direction of the stator coils, and a plurality of upper widening tools operably connected to the second gear operation part, and configured to be reciprocally movable above the plurality of lower widening tools.

A method and an apparatus for compact insertion of thick wire multiphase pseudo helical wave winding into a ferromagnetic core of an electrical machine, achieving high fill factor of the core slots, resulting in better heat transfer between the winding and the core, low mass and volume, and overall higher efficiency of electrical machine. An apparatus being fully programmable and physically adaptable to wide range of electric machine dimensions, where process is automated, simple, accurate, reliable and quick, while being suitable for mass production.

A manufacturing method of an electric pump includes engaging and welding first and second extended portions with first and second hooks, respectively, and cutting a plurality of connecting portions after the engaging and welding.

The invention relates to a method for welding a plurality of strands (33) of one or more electrical conductors (22), comprising at least the following steps: (a) preparing the strands (33) to be welded such that at least the free ends (22a) of adjacent strands are axially offset by a non-zero distance d. (b) melting the free ends (22a) of the strands thus arranged in order to weld them without addition of material.

A method for magnetizing a soft magnet in a rotor of a variable-flux memory motor (VFMM) includes: generating a first pulse of electric current that has a duration of equal to or more than 0.1 millisecond (ms) and equal to or less than 2 ms; and applying the first pulse to a stator winding of the VFMM to set a magnetization state of the soft magnet to a first magnetization state.