Sanyo Denki Co., Ltd.

Masaaki Oohashi

Yasushi Yoda

Kouji Nakatake

Mitsuaki Shioiri

Takao Oshimori

Nobutoshi Nakamura

Yukio Miura

Shigenori Miyairi

Ikuo Takeshita

Akio Miyahara

Hong Zhang

Youichi Horiuchi

Electrical insulation properties of winding start ends or terminal ends of insulating coating electric wires of coils wound around polar teeth of a stator core are improved, and creeping and spatial distances for electrical insulation are secured. Wall portions which project toward an interior of a radial direction or an exterior of an axial direction of a stator core and which have electrical insulation properties are formed in an inner peripheral portion of the stator core of a motor, groove portions are formed in the wall portions and winding start ends or terminal ends of insulating coating electric wires of coils are arranged in the groove portions.

Wiring structure of stator coil

An electric apparatus with high performance and high rigidity is provided. Annular positioning stepped portions are formed at respective outer peripheral corner portions of both end portions of a stator core to extend entirely circumferentially of the stator core. An annular positioning projecting portion is formed at a first end bracket to be entirely fitted with one of the annular positioning stepped portions of the stator core. An annular positioning projecting portion is formed at a second end bracket to be entirely fitted with the other annular positioning stepped portion of the stator core.

Electric apparatus with stator core

A pair of connecting wire hooks are disposed on both sides of a nozzle receiving groove in an extended slot space (a first extended space) to sandwich an extended portion of an extended virtual space (a third extended space). In this configuration, the pair of connecting wire hooks are not located within the third extended space. Thus, in the stator for rotary electric machine, the space factor of the winding portion may be increased in a situation where the connecting wire hook is disposed within the first extended space.

Stator for rotary electric machine

A stator for rotary electric machines is provided, in which a volume occupied by winding portions may be increased and a connecting wire may readily be engaged to prevent from coming off. A plurality of connecting wire engaging hooks, with which the connecting wire extending from the winding portion is engaged, are respectively disposed in the vicinity of border portions between a plurality of magnetic pole sectionsand a yoke, corresponding to the magnetic pole sections. A mounting location of a connectoron a circuit substrateis determined so that all of ends of a plurality of terminal conductors of the connector may be located between adjoining two of the connecting wire engaging hooks. With this arrangement, all of the endsof the plurality of terminal conductorsmay be disposed between adjoining two of a plurality of the winding portions, and be spaced from the winding portions

Stator for rotary electric machines

Electric motor

The present invention provides a rotary electric machine, of which the occupied volume can be reduced and which allows a space in an electric apparatus equipped therewith to be utilized effectively. A slot insulatoris integrally formed with a holder mounting portion, a whole or major part of which is positioned on one of end faces of a yokeof a stator core. A lead wire holderincludes a connection holding portionfor disposing a plurality of connections, in which lead-out wires of windings are connected with corresponding core wiresof lead wires, at a predetermined interval so that the connections do not contact with each other. The lead wire holderis arranged so that the connection holding portionis positioned over a part of the windingsand the holder mounting portionwhen the lead wire holder is attached to the holder mounting portion. One end bracket, which faces to one of the end faces of the yoke, is formed with a recess which opens toward both sides in the axial direction thereof as well as opens outwardly in a radial direction of a shaft. The holder mounting portionand lead wire holderare received within the recess when the one end bracket is attached to the one end face of the yoke.

Growing community of inventors

Nagano, Japan

Masaaki Oohashi