A coil component includes a core including a winding core portion, a first flange portion, and a second flange portion, and a first wire and a second wire that are wound around the winding core portion in the same direction and that form a winding portion. The winding portion includes a second intersecting portion along a third side surface of the winding core portion at a position on the winding portion nearest to the second flange portion.

A bobbin wound coil for an electromagnetic coupling includes a bobbin having a cylindrical body, end flanges disposed at opposite ends of the body and a terminal connector on an exterior side of one of the end flanges. A coil has a beginning portion extending through first openings in the terminal connector and an end flange and an end portion extending through second openings in the terminal connector an end flange. The second openings in the terminal connector and end flange are forward and rearward, respectively, of the corresponding first openings in a circumferential direction. A section of the beginning portion extends between the first openings in the terminal connector and end flange and a section of the end portion extends between the second openings in the terminal connector and end flange such that section of the end portion crosses over the section of the beginning portion.

A bobbin wound coil for an electromagnetic coupling includes a bobbin having a cylindrical body disposed about a central axis, end flanges disposed at each axial end of the body and a terminal connector on an exterior side of one of the end flanges. The terminal connector includes a body defining a central cavity and a post extending from an exterior surface of the body of the terminal connector. A coil includes a beginning portion extending through the body of the terminal connector and the end flange on which the terminal connector is located, an end portion extending through the body of the terminal connector and the end flange, and a center portion extending between the beginning portion and the end portion and wound about the cylindrical body of the bobbin. One of the beginning portion and the end portion of the coil is wound about the post.

A bobbin wound coil for an electromagnetic coupling includes a bobbin having a cylindrical body, end flanges disposed at opposite ends of the body and a terminal connector defining a central cavity bordered, in part, by inner and outer walls and a side wall extending between the inner and outer walls. A coil has a beginning portion extending through first openings in the inner and outer walls, an end portion extending through second openings in the inner and outer walls, and a center portion wound about the bobbin body. The first and second openings in the inner wall divide the inner wall into first and second circumferential end sections and a center section. A portion of one of the circumferential end sections and the center section is spaced from the side wall to define a recess configured to receive one of the beginning and end portions of the coil.

A bobbin wound coil for an electromagnetic coupling includes a bobbin having a cylindrical body, end flanges disposed at opposite ends of the body and a terminal connector defining a central cavity bordered, in part, by inner and outer walls and a side wall extending between the inner and outer walls. A coil has a beginning portion extending through first openings in the inner and outer walls, an end portion extending through second openings in the inner and outer walls, and a center portion wound about the bobbin body. The first and second openings in the inner wall divide the inner wall into first and second circumferential end sections and a center section. A portion of one of the circumferential end sections and the center section is spaced from the side wall to define a recess configured to receive one of the beginning and end portions of the coil.

A conductor shaping apparatus includes a driving device that relatively rotates an upper die and a lower die and integrally rotates the upper and lower dies with respect to a shaping member. The driving device rotates one of the upper and lower dies in a direction from an edgewise bent portion to a distal end of a conductor so as to separate the one of the upper and lower dies from the other. One of the upper and lower dies includes a supporting surface configured to support a side surface of an end portion of the conductor as the edgewise bent portion is formed in the end portion, and a guide surface that is formed to intersect the support surface. The guide surface extends away from the end portion of the conductor in a direction opposite to a bent direction of a flatwise bent portion closest to the edgewise bent portion as it extends away from the supporting surface on an opposite side of a rotational axis.

A conductor shaping apparatus includes a driving device that relatively rotates an upper die and a lower die and integrally rotates the upper and lower dies with respect to a shaping member. The driving device rotates one of the upper and lower dies in a direction from an edgewise bent portion to a distal end of a conductor so as to separate the one of the upper and lower dies from the other. One of the upper and lower dies includes a supporting surface configured to support a side surface of an end portion of the conductor as the edgewise bent portion is formed in the end portion, and a guide surface that is formed to intersect the support surface. The guide surface extends away from the end portion of the conductor in a direction opposite to a bent direction of a flatwise bent portion closest to the edgewise bent portion as it extends away from the supporting surface on an opposite side of a rotational axis.

A coil component includes a core including a winding core portion, a first flange portion, and a second flange portion, a first wire and a second wire that are wound around the winding core portion in the same direction and that form a winding portion, a first terminal electrode and a second terminal electrode that are disposed on the first flange portion, and a third terminal electrode and a fourth terminal electrode that are disposed on the second flange portion. A length of the winding portion along a bottom surface of the winding core portion is shorter than a length of the winding portion along an upper surface of the winding core portion.

An ignition coil has a ferromagnetic core with a primary coil surrounding a first portion of the ferromagnetic core and a secondary coil surrounding the second portion of the ferromagnetic core. The secondary coil is wrapped around a bobbin. The bobbin has an interior receiving the second portion of the ferromagnetic core. A form is interposed between the secondary coil and the second portion of the ferromagnetic core. The form extends longitudinally along the second portion of the ferromagnetic core. The form is of a non-ferrous metal material.

An ignition coil has a ferromagnetic core with a primary coil surrounding a first portion of the ferromagnetic core and a secondary coil surrounding the second portion of the ferromagnetic core. The secondary coil is wrapped around a bobbin. The bobbin has an interior receiving the second portion of the ferromagnetic core. A form is interposed between the secondary coil and the second portion of the ferromagnetic core. The form extends longitudinally along the second portion of the ferromagnetic core. The form is of a non-ferrous metal material.