Rotating electric machine, wind power generation system and method of manufacturing rotating electric machine
AssigneeKabushiki Kaisha Yaskawa Denki
InventorHiroshi Tsumagari
Life of this patent
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Abstract
This rotating electric machine is so formed that the length from an end portion of a rotor core closer to a rotating shaft support portion to a portion first coming into contact with the rotating shaft support portion when a rotating shaft portion is inserted into the rotating shaft support portion is larger than the length from an end portion of the rotating shaft support portion closer to a stator to an end portion of a stator core opposite to the rotating shaft support portion.
Claims20
A rotating electric machine comprising:
- a rotating shaft portion;
- a rotor including a rotor core connected to said rotating shaft portion;
- a stator including a stator core arranged to be radially opposed to said rotor core;
- a housing provided with a recess portion storing said rotor and said stator;
- and
- a rotating shaft support portion provided on said housing for rotatably supporting said rotating shaft portion, and
- so formed that the length in the extensional direction of said rotating shaft portion from an end portion of said rotor core closer to said rotating shaft support portion to a portion first coming into contact with said rotating shaft support portion when said rotating shaft portion is inserted into said rotating shaft support portion is larger than the length in the extensional direction of said rotating shaft portion from an end portion of said rotating shaft support portion closer to said stator to a first end portion of said stator core of a side opposite to a second end portion of said stator core closer to said rotating shaft support portion.
A wind power generation system comprising:
- a power generator provided with a rotating shaft portion, a rotor including a rotor core connected to said rotating shaft portion, a stator including a stator core arranged to be radially opposed to said rotor core, a housing provided with a recess portion storing said rotor and said stator and a rotating shaft support portion provided on said housing for rotatably supporting said rotating shaft portion;
- and
- a blade connected to said rotating shaft portion, and
- so formed that the length in the extensional direction of said rotating shaft portion from an end portion of said rotor core closer to said rotating shaft support portion to a portion first coming into contact with said rotating shaft support portion when said rotating shaft portion is inserted into said rotating shaft support portion is larger than the length in the extensional direction of said rotating shaft portion from an end portion of said rotating shaft support portion closer to said stator to a first end portion of said stator core of a side opposite to a second end portion of said stator core closer to said rotating shaft support portion.
A method of manufacturing a rotating electric machine comprising a rotating shaft portion, a rotor including a rotor core connected to said rotating shaft portion, a stator including a stator core arranged to be radially opposed to said rotor core, a housing provided with a recess portion storing said rotor and said stator and a rotating shaft support portion provided on said housing for rotatably supporting said rotating shaft portion, comprising the steps of:
- bringing said rotating shaft portion and an end portion of said rotating shaft support portion closer to said stator into contact with each other in a state where said rotor core and said stator core are not radially opposed to each other by rendering the length in the extensional direction of said rotating shaft portion from an end portion of said rotor core closer to said rotating shaft support portion to a portion first coming into contact with said rotating shaft support portion when said rotating shaft portion is inserted into said rotating shaft support portion larger than the length in the extensional direction of said rotating shaft portion from said end portion of said rotating shaft support portion closer to said stator to a first end portion of said stator core of a side opposite to a second end portion of said stator core closer to said rotating shaft support portion;
- and
- inserting said rotating shaft portion into said rotating shaft support portion while keeping a state where said rotor core and said stator core are not in contact with each other.
Dependencies are inferred from the claim text.