Abstract: A terminal connection structure for an electric wire end portion (12a) in which the electric wire end portion is soldered being exposed on a flat-plate terminal piece (11b) out from inside of a terminal main part (11a), the terminal piece being continuous with a front end of the terminal main part (11a). The electric wire end portion (12a) exposed on the terminal piece (11b) from the terminal main part (11a) includes a first end section (12a1) that is close to the terminal main part (11a) and a second end section (12a2) that is far from the terminal main part (11a). The electric wire end portion (12a) has a shape, in side view, such that the first end section (12a1) is compressed to have a gentle curved surface that approaches the terminal piece (11b) toward the second end section (12a2).

Abstract: A terminal connection structure for an electric wire end portion (12a) in which the electric wire end portion is soldered being exposed on a flat-plate terminal piece (11b) out from inside of a terminal main part (11a), the terminal piece being continuous with a front end of the terminal main part (11a). The electric wire end portion (12a) exposed on the terminal piece (11b) from the terminal main part (11a) includes a first end section (12a1) that is close to the terminal main part (11a) and a second end section (12a2) that is far from the terminal main part (11a). The electric wire end portion (12a) has a shape, in side view, such that the first end section (12a1) is compressed to have a gentle curved surface that approaches the terminal piece (11b) toward the second end section (12a2).

Abstract: A method of the present invention includes: electrically joining an electric wire 5 and a terminal (1) by crimping the electric wire 5 held by a first crimp piece (6) under a stress condition where external force is applied; and mechanically joining the terminal (1) and the electric wire (5) by soldering the electric wire (5) held by a second crimp piece (7) onto the terminal (1) while heating the electric wire (5) under a stress-free condition where no external force is applied by applying an electric current to heating electrodes (10, 12). The terminal (1) that is made of a different material from the electric wire (5) is surface-treated in order to avoid electric corrosion with the electric wire (5).

Abstract: A reactor is provided in which coil segments (5-1, 5-2) of each of first and second auxiliary winding elements (2-1, 2-2) is of a multilayered and aligned winding structure. The coil segments (5-1, 5-2) of the first auxiliary winding element (2-1) and the coil segments (5-1, 5-2) of the second auxiliary winding element (2-2) are disposed within respective space areas (6-1, 6-2) delimited between the coil segments of the second auxiliary winding element and an outside and between the outside and the coil segments of the first auxiliary winding element. The coil segments of each of those first and second auxiliary winding elements are so combined as to be adjacently alternately positioned in a line to thereby form a main winding body (3). The pair of the auxiliary winding elements are connected parallel to each other.

Abstract: A reactor is provided in which coil segments (5-1, 5-2) of each of first and second auxiliary winding elements (2-1, 2-2) is of a multilayered and aligned winding structure. The coil segments (5-1, 5-2) of the first auxiliary winding element (2-1) and the coil segments (5-1, 5-2) of the second auxiliary winding element (2-2) are disposed within respective space areas (6-1, 6-2) delimited between the coil segments of the second auxiliary winding element and an outside and between the outside and the coil segments of the first auxiliary winding element. The coil segments of each of those first and second auxiliary winding elements are so combined as to be adjacently alternately positioned in a line to thereby form a main winding body (3). The pair of the auxiliary winding elements are connected parallel to each other.