Multi-phase transformer and transformation system
First Claim
Patent Images
1. A multi-phase transformer comprising:
- a plurality of coils; and
a pair of magnetic members disposed at respective opposite ends of the plural coils in axial directions thereof,whereineach of the plural coils includes a plurality of sub-coils, andsaid plurality of sub-coils are formed by winding three of strip-like conductor members that are successively overlaid with an insulating material interposed between the conductor members such that a widthwise direction of each of the conductor members is aligned with an axial direction of the corresponding coil, and the first strip-like conductor member serves as a primary coil, and the second and third strip-like conductor members serve as a secondary coil, andthe second and third strip-like conductor members are electrically connected to one another, andsaid plurality of sub-coils are disposed side by side such that respective axial directions of the sub-coils are parallel, andthe pair of magnetic members functions as a part of a magnetic circuit for returning the magnetic flux generated by the primary coil and coupling the primary coil and the secondary coil to each other with mutual inductance, andsaid insulating material is disposed on an inner lateral surface of the conductor member, andthe conductor member and the insulating material are wound together so as to be successively overlaid into a spiral shape.
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Accused Products
Abstract
Provided are a multi-phase transformer having an easier-producible structure, and a transformation system wherein a plurality of such transformers are serially connected. Disclosed is a three-phase transformer (Tra) provided with three coils (1u, 1v, 1w) and a pair of magnetic members (21, 22) respectively provided on opposite ends in the axial direction of the coils (1u, 1v, 1w), wherein the coils (1u, 1v, 1w) are respectively provided with first and second sub-coils (11u, 12u; 11v, 12v; 11w, 12w).
10 Citations
17 Claims
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1. A multi-phase transformer comprising:
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a plurality of coils; and a pair of magnetic members disposed at respective opposite ends of the plural coils in axial directions thereof, wherein each of the plural coils includes a plurality of sub-coils, and said plurality of sub-coils are formed by winding three of strip-like conductor members that are successively overlaid with an insulating material interposed between the conductor members such that a widthwise direction of each of the conductor members is aligned with an axial direction of the corresponding coil, and the first strip-like conductor member serves as a primary coil, and the second and third strip-like conductor members serve as a secondary coil, and the second and third strip-like conductor members are electrically connected to one another, and said plurality of sub-coils are disposed side by side such that respective axial directions of the sub-coils are parallel, and the pair of magnetic members functions as a part of a magnetic circuit for returning the magnetic flux generated by the primary coil and coupling the primary coil and the secondary coil to each other with mutual inductance, and said insulating material is disposed on an inner lateral surface of the conductor member, and the conductor member and the insulating material are wound together so as to be successively overlaid into a spiral shape. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A transformation system including a plurality of transformers connected in series, wherein at least one of the plurality of transformers is a multi-phase transformer comprising:
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a plurality of coils; and a pair of magnetic members disposed at respective opposite ends of the plural coils in axial directions thereof, wherein each of the plural coils includes a plurality of sub-coils, said plurality of sub-coils are formed by winding three of strip-like conductor members that are successively overlaid with an insulating material interposed between the conductor members such that a widthwise direction of each of the conductor members is aligned with an axial direction of the corresponding coil, and the first strip-like conductor member serves as a primary coil, and the second and third strip-like conductor members serve as a secondary coil, and the second and third strip-like conductor are electrically connected to each other, and said plurality of sub-coils are disposed side by side such that respective axial directions of the sub-coils are parallel, and the pair of magnetic members functions as a part of a magnetic circuit for returning the magnetic flux generated by the primary coil and coupling the primary coil and the secondary coil to each other with mutual inductance, said insulating material is disposed on an inner lateral surface of the conductor member, and the conductor member and the insulating material are wound together so as to be successively overlaid into a spiral shape. - View Dependent Claims (16, 17)
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Specification