| CPC H01F 27/29 (2013.01) [H01F 27/255 (2013.01); H01F 27/323 (2013.01); H01F 41/04 (2013.01)] | 14 Claims |
|
1. A coil structure comprising:
n metal plates that are laminated, where n is a natural number greater than or equal to two,
wherein each of the n metal plates includes a spiral conductor, and a row of terminals, aligned in a predetermined direction on an outer side of the conductor, and formed by n+1 or more plate portions thicker than the conductor,
wherein two ends of the conductor are connected to two adjacent plate portions for each of the n metal plates,
wherein the row of terminals of a first metal plate is bonded to the row of terminals of a second metal plate which is adjacent to the first metal plate, among the n metal plates that are laminated, and
wherein the two ends of the conductor of a lowermost metal plate among the n metal plates are connected to the two adjacent plate portions located at a first end of the lowermost metal plate, the two ends of the conductor of a second lowest metal plate among the n metal plates are connected to the two adjacent plate portions located at a position shifted one place toward a second end opposite to the first end of the second lowest metal plate, and the position where the two ends of the conductor connect to the two adjacent plate portions shifts one place toward the second end for each upward increase in level within a laminate along a laminated direction of the n metal plates, so that the conductors of each of the n metal plates are connected in series to form a spiral coil.
|