Electromagnetic induction device with magnetic particles between core segments
AssigneeTabuchi Electric Co., Ltd.
InventorsSusumu Saitoh, Tetsurou Itoh, Naoki Kuroda
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Abstract
An electromagnetic induction device which comprises a split-type core assembly comprising at least one winding formed thereon and first and second core segments each having at least two joint faces spaced apart from each other, the first and second core segments are connected together with the joint faces of one of the first and second core segments held in contact with the joint faces of the other of the first and second core segments, and a finely divided ferromagnetic material is interposed between the joint faces of the respective first and second core segments. The ferromagnetic material used has an average particle size sufficient to form a magnetic fluid medium.
Claims25
An electromagnetic induction device which comprises a split-type core assembly comprising at least one winding formed thereon and first and second core segments, each of said first and second core segments having at least two joint faces spaced apart from each other, said first and second core segments being connected together with said joint faces of one of the first and second core segments held in contact with said joint faces of the other of the first and second core segments, and a finely divided ferromagnetic material interposed between the joint faces of the respective first and second core segments, said ferromagnetic material having an average particle size less than 1 .mu.m interposed to form a magnetic fluid medium.
An electromagnetic induction device which comprises a split-type core assembly comprising at least one winding formed thereon and first and second core segments, each of said first and second core segments having at least two joint faces spaced apart from each other, said first and second core segments having at least two joint faces spaced apart from each other, said first and second core segments being connected together with said joint faces of one of the first and second core segments held in contact with said joint faces of the other of the first and second core segments;
- a magnetic fluid medium including a ferromagnetic material having an average particle size less than 1 .mu.m interposed between the joint faces of the respective first and second core segments;
- and a sealing means for encompassing an outer perimeter of each of joints defined between the joint faces of the respective first and second core segments.
An electromagnetic induction device which comprises a split-type core assembly comprising at least one winding formed thereon and first and second core segments, each of said first and second core segments having at least two joint faces spaced apart from each other, said first and second core segments being connected together with said joint faces of one of the first and second core segments held in contact with said joint faces of the other of the first and second core segments, and hardened deposits of an adhesive filler material interposed between the joint faces of the respective first and second core segments, said adhesive filler material comprising resinous material mixed with finely divided ferromagnetic particles having an average particle size of less than 1 .mu.m to form a magnetic fluid medium.
An electromagnetic induction device comprising:
- an open-ended core having end portions opposite to each other;
- at least one winding formed on the open-ended core;
- a yoke having end portions opposite to each other, said yoke being mounted on the open-ended core with the opposite end portions of said yoke held parallel to and in abutting relationship with the opposite end portions of the open-ended core:
- and
- deposits of finely divided ferromagnetic material an average particle size of less than 1 .mu.m to form a magnetic fluid medium, said deposits being interposed between the opposite end portions of the open-ended core and the opposite end portions of the yoke, each of said deposit of the finely divided ferromagnetic material being formed so as to cover at least end faces of each of the open-ended core and the yoke.
An electromagnetic induction device, comprising:
- an electromagnetic assembly, including first and second segment means, each having a plurality of end faces, said first and second segment means being connected together at each of the plurality of end faces;
- winding means, mounted on said electromagnetic assembly for generating a magnetic field;
- and
- finely divided ferromagnetic particles applied between the plurality of end faces of the first and second segment means for electromagnetically bonding the first and second segment means together, said ferromagnetic particles having an average particle size less than 1 .mu.m to form a magnetic fluid medium.
Dependencies are inferred from the claim text.