A method for manufacturing a stator for a rotary electric machine, capable of reducing a space on an end surface of a stator core on an inner diameter side to reduce a size in an axial direction to realize a compact size by maintaining an insulating distance corresponding to a potential difference. In the stator for the rotary electric machine a coil portion includes a coil main-body portion (21) and a second connecting wire (23). The second connecting wire (23) includes a first bent portion (24) and a second connecting-wire end portion (23A). The second connecting wire (23) is configured so that a differential value of a length z in the axial direction of the stator to a length r in the radial direction of the stator is z/r>0.

A predetermined part of one conductive wire is pressurized and plastically worked to form a slot portion having a desired cross section, a part separated from the slot portion by a predetermined dimension is pressed to form a top portion, and then a part separated from the top portion by a predetermined dimension is plastically worked to form the next slot portion. Through repetition of such steps, a conductive wire in which necessary numbers of slot portions and top portions are formed is manufactured. Using the top portion as a reference, the conductive wire is folded to form a coil end portion and is wound by a plurality of turns into a hexagonal shape, thereby forming a hexagonal coil in which the conductive wire is wound by a predetermined number of turns. In the hexagonal coil, bundles of the slot portions become two opposite sides and are inserted in the slots of the armature.

A stator unit for including a plurality of coils includes a stator core configured to have the coils wound around the stator core; and a routing member including a plurality of groove configured to have wires routed in the groove, the wires extending from the coils.

The motor of the invention includes the resin sealing member which covers a stator and a circuit board. The stator includes a stator core for winding a driving coil through an insulation member, and a terminal pin secured to the insulation member. The insulation member includes a press fitting portion for pressing and securing a portion of the terminal pin on a side of a second direction, whereas a portion of the terminal pin on a side of a first direction is soldered to the circuit board. A stopper portion is formed on a second direction end of the terminal pin. The stopper portion contacts a surface of the press fitting portion in the second direction to prevent the terminal pin from falling off in the first direction.

Provided is a stator for a rotary electric machine, capable of reducing a space on an end surface of a stator core on an inner diameter side to reduce a size in an axial direction to realize a compact size by maintaining an insulating distance corresponding to a potential difference. In the stator for a rotary electric machine according to the present invention, a coil portion includes a coil main-body portion (21) and a second connecting wire (23). The second connecting wire (23) includes a first bent portion (24) and a second connecting-wire end portion (23A). The second connecting wire (23) is configured so that a differential value of a length z in the axial direction of the stator to a length r in the radial direction of the stator is z/r0.

A disk motor including: a rotor; a stator; an output shaft concentrically fixed to the rotor; at least one coil disk which is provided to one of the rotor or the stator, a coil pattern which includes a plurality of radial patterns or radial pattern groups extending outwards in a radial direction from a center part of the coil disk being formed on at least one surface of the coil disk; an electric current supply portion which supplies electric current to the coil pattern; a magnetic flux generating portion which is provided to another of the rotor or the stator and faces the coil pattern; and an intermediate pattern which is formed between adjacent radial patterns or adjacent radial pattern groups on the coil disk.

A direct current machine comprises a stator and a rotor, wherein one of these two has a plurality of magnets which are alternatively magnetized north and south, and the respective other part has a plurality of coils which are formed by teeth around which insulated wire is wound, wherein between these coils there are formed respective slots and the coils are combined in coil groups; and a current controlled inverter for driving the machine; wherein each coil group has a front terminal and a rear terminal and the coil groups are connected such that a defined wiring concept is formed and wherein the front terminals and end terminals are connected via an interconnection element which is specifically designed for a defined wiring concept.

An aluminum wire, which is an electric wire of an electric motor of a compressor, is wound around a copper wire, which is another electric wire, at interval in the length direction. The portion around which the aluminum wire is wound is brazed with a brazing material containing a flux. Thus, the aluminum wire and the copper wire are joined together, and an electric wire joint section is formed. Insulating paper is mounted to the electric wire joint section. The inner surface of the insulating paper is brought into contact with the surface of the electric wire joint section to which a residue of the flux adheres.

A power tool (1) and a method of producing such power tool capable of improving dust proof performance with respect to a circuit board (33) and a stator coil (31B), and capable of securing cooling performance to the circuit board. The power tool includes a brushless motor (3) having a hollow stator (31), a rotor (32) positioned in an internal space of the stator, and a motor driver circuit connected to the stator. The stator includes a coil (31B) electrically connected to the motor driver circuit. The coil is coated with a coating agent (31D), and the motor driver circuit is covered with an insulation cover member (33D).

An electric generator phase ring handling tool, a phase ring loading tool, base loader, and a system and a method for servicing or installing one or more phase rings in an electric generator using the handling tool, the loading tool and the base loader. Phase rings can be picked up and transported to a generator, inserted into the generator, adjusted while inside the generator, and removed. Installation, removal and servicing of the rings in a generator avoids use of a crane and allows shorten generator outage duration. Without using a crane for installation, removal and servicing, the safety of workers performing these operations is enhanced. Also, increased precision in transporting, placing, installing, removing, and adjusting the rings is obtained, minimizing the risk of damage to the rings and the generator.