Stator core with stacked core and adhesion portion
AssigneeMitsubishi Electric Corporation
InventorsShinichiro Yoshida, Fumitaka Totsuka, Tatsuro Hino, Masaki Shinohara, Takafumi Ichida, Satoru Sodeoka, Ryosuke Kakuki
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Abstract
A stacked core is formed by stacking, in an axial direction, a plurality of core pieces each having a core-back portion and a tooth portion. An adhesion portion is formed on the core pieces continuously or intermittently in the axial direction at a recess formed to extend in the axial direction on the core pieces on at least one of an end surface of an outer periphery of the tooth portion and an end surface of an outer periphery of the core-back portion of the stacked core.
Claims20
A stator core of a rotating electric machine, comprising:
- a stacked core including a predetermined number of core pieces stacked, in an axial direction, each of the predetermined number of core pieces having a core-back portion and a tooth portion protruding toward an inner side in a radial direction from a core-inner-circumferential surface on the inner side in the radial direction of the core-back portion, wherein
- one or more projection is formed on only one of the predetermined number of core pieces,
- an adhesion portion is formed on all of the predetermined number of core pieces continuously or intermittently in the axial direction on at least one of an end surface of an outer periphery of the tooth portion or an end surface of an outer periphery of the core-back portion of the stacked core, and
- one end in the axial direction of the adhesion portion is cut at a position of the one or more projection in the axial direction.
Dependencies are inferred from the claim text.