| CPC H02K 15/12 (2013.01) [H02K 3/12 (2013.01); H02K 3/24 (2013.01); H02K 3/28 (2013.01); H02K 9/197 (2013.01)] | 8 Claims |
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7. A motor comprising a stator, and a rotor which is disposed with a gap from the stator, the motor being arranged in a housing, wherein:
the stator comprises a plurality of laminated plates forming an annular yoke and a plurality of teeth protruding from an inner peripheral portion or an outer peripheral portion of the yoke toward the rotor;
slots in which coils wound around the teeth are arranged are respectively formed between the teeth that are adjacent to each other;
the stator includes a mold resin portion in which the plurality of laminated plates and the coils are molded;
the mold resin portion includes a coil passage portion formed around the coils and a flow path that penetrates in the axial direction so as to pass through at least one slot among the plurality of slots, the flow path formed away from the coil passage portion; and
the flow path is disposed closer to the rotor than the coil within the slot,
the flow path is supplied with a cooling medium,
wherein the housing includes a cylindrical portion, and two cover members which close both sides of the cylindrical portion;
the mold resin portion includes
a plurality of flow paths which pass through every one of the slots, respectively, and
annular groove portions, which are formed on both end surfaces of the mold resin portion, respectively, and communicate with the plurality of flow paths; and
an outer peripheral portion of the mold resin portion is in contact with an inner peripheral surface of the cylindrical portion, and both end portions of the mold resin portion are disposed to be opposed to the two cover members, respectively,
wherein two annular seal members, which are disposed radially inside and radially outside the groove portion, respectively, are disposed in places between the both end surfaces of the mold resin portion and the two cover members.
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