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US 2009/0212655 A1Published application
Airtight-type electric motor
AssigneeSanyo Denki Co., Ltd.
InventorsShigenori Miyairi, Ikuo Takeshita, Koji Nakatake, Hisayuki Miyajima
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Abstract
An airtight-type electric motor capable of reducing vibration is provided. Inside ribs of a pair of end brackets and are respectively fitted into core end portions of a stator core. Outside ribs of the pair of end brackets and are respectively brought into contact against end surfaces of the core end portions of a yoke of the stator core. With this arrangement, the pair of end brackets and are fixed to the stator core, and a housing and the stator core are arranged, without being coupled together.
Claims8
An airtight-type electric motor comprising:
- a rotor including a rotor member and a shaft with the rotor member fixed thereto;
- a stator including a stator core located radially outside of the shaft and a plurality of winding portions mounted on the stator core, the stator core including core end portions which oppose to each other in an axial direction of the shaft;
- a pair of bearings that rotatably support the shaft;
- a pair of end brackets with the pair of bearings respectively fixed thereto, the pair of end brackets being fixed to the core end portions of the stator core through fitting structures;
- a cylindrical housing that is located radially outside of the stator and surrounds the stator, the housing including housing end portions which oppose to each other in the axial direction;
- and
- a pair of airtight coupling structures which airtightly couple the end brackets to the housing end portions;
- wherein the housing and the stator core are not coupled.
5 more elements
Dependencies are inferred from the claim text.