The present invention provides a direct current motor, comprising: a casing; m pairs of brushes fixed within the casing; a stator provided within the casing, including m main poles corresponding to the m pairs of brushes, and n field winding parts; and a rotor provided within the stator, including a plurality of armature windings in a predetermined connection, wherein each pair of main poles includes an S-polarity main pole and an N-polarity main pole; each pair of brushes includes an S-pole corresponding brush corresponding to the S-polarity main pole, and an N-pole corresponding brush corresponding to the N-polarity main pole, the field winding part includes k field winding units, each field winding unit is made up of field coils formed by winding an insulated conductor strip, which is made of a metal wire coated with an insulating layer, around the m pairs of main poles, and m is a positive integer not less than 2, n is 1 or 2, and k is a positive integer not less than 2.

A winding structure of motor stator includes a stator core, two insulation members, an upper cap, a lower cap, and a coil. The two insulation members are disposed on two winding grooves of the stator core respectively. The upper cap and the lower cap are disposed on a top end and a bottom end of the stator core respectively. The coil is wound on the upper cap, the two insulation members, and the lower cap. Stopping pieces facing each other are formed on two sides of each of the upper cap and the lower cap. Each of the stopping pieces is separated from the coil without contact.

The purpose of the present invention is to obtain a structure with which it is possible to improve the heat dissipation performance and efficiency of an axial gap dynamo-electric machine. Accordingly, the present invention is an axial gap dynamo-electric machine of such construction that a disc-shaped rotor in which permanent magnets are disposed is provided in the axial direction and a stator is disposed in the axial-direction center portion, wherein the outer circumferential side of a stator winding is in intimate contact with the inside diameter of a housing, embedding with a mold resin is used for the housing and a stator core and for a stator coil and the housing so that a connection is established with the housing, and the housing comprises a nonmagnetic, electrically nonconductive material.

A motor includes a rotor, a stator surrounding an outer side of the rotor in a radial direction and including a coil, and a bus bar of a wire electrically connected to the coil and having conductivity, wherein the stator is provided with a hole extending in an axial direction, the bus bar includes stretched portions extending in the axial direction, and each of the stretched portions is disposed in the hole.

To reduce a loss of a rotating electric machine by making it difficult for an eddy current to occur in a welding portion of the rotating electric machine. A rotating electric machine includes a rotor including a magnet on an outer circumferential portion, a stator core having plural teeth facing the outer circumferential portion of the rotor via a gap, an electric insulator covering a part of a surface of the stator core, and plural coils wound around the stator core via the electric insulator. The stator core has plural steel plates stacked in an axial direction. At least two plural steel plates [adjacent to each other in the axial direction, of the plural steel plates, are welded at a position on the surface of the stator core, the position being outside a closed magnetic circuit generated in the stator core. The plural steel plates are not welded at a position on the surface of the stator core where each tooth faces the rotor.

A slot liner for an electric machine, arranged to be located and removably retained in a slot of a machine to secure a winding in the slot. The slot liner includes a flexible electrically non-conductive material defining a first surface to be located against a wall of the slot and an opposing surface having one or more surface features extending into the slot, when in position, such that when a winding is formed across the slot liner, turns of the winding are spaced from other turns of the winding by the surface features.

In a motor, a wire terminal, to which an end at an end of winding of a wire is connected, is held by an insulator that is held by a stator core. The wire terminal comprises: a substrate connection section; plural legs held by a split insulator; a plate section, a thickness direction of which faces a radial direction, between the legs and the substrate connection section; and a wire connection section, a portion of which projected from the plate section is bent to hold the wire on an inner side. An elastic section is a meandering section meandering to turn back in a circumferential direction between the plate section and the substrate connection section, and extends from an end on another side in the circumferential direction of the plate section toward the substrate connection section.

Provided is a motor stator which includes: a ring-shaped stator core; a plurality of tooth portions protruding inward from the stator core; an insulator made of an insulating material and mounted on the plurality of tooth portions; a stator coil wound around each of the plurality of tooth portions via the insulator; a lead wire; and a connection portion connecting the stator coil and the lead wire, in which the insulator includes a connection housing portion housing the connection portion.

The present disclosure relates to a motor including: a stator including a plurality of split cores configured to collectively define a ring shape, and bobbins configured to respectively surround the plurality of split cores and each having a coil wound therearound; a busbar unit electrically connected to the coils; and support parts respectively disposed on the bobbins and configured to support the busbar unit, thereby improving durability, stability, and reliability.

A stator assembly including at least one pair of c-shaped stator cores, each c-shaped stator core having a bobbin, and a winding wound around each bobbin, wherein the windings on each adjacent pair of c-shaped stator cores are wound in opposite directions.