Stator core
AssigneesDenso Corporation, Denso Presstech Inc.
InventorsKeiji Kondo, Toshihiro Takei, Yuichi Kudose, Hiroshi Endo, Masaki Ohira
Life of this patent
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Abstract
A stator core includes a core body a having a cylindrical shape and a bolt fixing portion which includes a bolt insertion hole extending in an axial direction and into which a fixing bolt is inserted, and is capable of being fastened to a housing by a fixing bolt while the fixing bolt is inserted into the bolt insertion hole. The core body is a laminate in which core sheets made of steel plates having an insulating resin layer on a surface are laminated. The bolt fixing portion is provided as a separate member from the core body and is attached to an outside of an outer peripheral surface of the core body in a radial direction.
Claims8
A stator core comprising:
- a stator core fixed to a stator fixing member by a fixing bolt,
- a core body in a cylindrical shape;
- and
- a bolt fixing portion which includes an insertion portion extending in an axial direction of the core body and through which the fixing bolt is inserted and is able to be fixed to the stator fixing member by the fixing bolt while the fixing bolt is inserted into the insertion portion, wherein
- the core body is a laminated body in which a core sheet made of a steel plate having an insulating resin layer on surfaces are laminated, and wherein
- the bolt fixing portion is provided as a separate member from the core body, and is attached to an outside of an outer peripheral surface of the core body in a radial direction, wherein
- the bolt fixing portion, not the laminated body of the core body, includes:
- two end plate portions provided on both axial direction sides of the bolt fixing portion and fixed to the core body;
- and
- an insertion body which forms the insertion portion and is disposed to be sandwiched between the two end plate portions on both axial direction sides, wherein
- a head side end plate portion on a side of a head portion of the fixing bolt among the two end plate portions provided on the both axial direction sides of the bolt fixing portion is flush with an axial direction end surface of the core body and is arranged to be in contact with the outer peripheral surface of the core body, and wherein
- the head side end plate portion is joined to the core body by welding on a side opposite to the axial direction end surface of the core body among both axial direction surfaces of the head side end plate portion.
A stator core comprising:
- a stator core fixed to a stator fixing member by a fixing bolt,
- a core body in a cylindrical shape;
- and
- a bolt fixing portion which includes an insertion portion extending in an axial direction of the core body and through which the fixing bolt is inserted and is able to be fixed to the stator fixing member by the fixing bolt while the fixing bolt is inserted into the insertion portion, wherein
- the core body is a laminated body in which a core sheet made of a steel plate having an insulating resin layer on surfaces are laminated, and wherein
- the bolt fixing portion is provided as a separate member from the core body, and is attached to an outside of an outer peripheral surface of the core body in a radial direction, and wherein
- the bolt fixing portion has a length in the axial direction shorter than a length of the core body in the axial direction, and wherein
- the bolt fixing portion is attached to the core body such that at least one of axial direction end surfaces on both axial direction sides is located at a core middle position in the axial direction on the outer peripheral surface of the core body, and wherein
- the axial direction end surface of the bolt fixing portion at a core middle position is provided with an uneven portion having an uneven shape in the axial direction at least on a side facing the outer peripheral surface of the core body.
Dependencies are inferred from the claim text.