Patent ID: 8093779

Claim:
A concentrated winding coil, the coil having a rectangle shape having a long side as a coil slot section and a short side as a coil end section viewed from a coil axis direction of the coil, comprising: a plurality of coil layers each of which is composed of a plurality of wire turns wound in alignment winding; and a bobbin including an inner flange, an outer flange and a bobbin body on which the wire is wound and which has no guide grooves, the bobbin body having a rectangle shape having a long side for the coil slot section and a short side for the coil end section viewed from the coil axis direction, wherein: each of the coil layers includes a turn shift section where the wire is shifted from an n-th turn to an (n+1)-th turn by wire traverse which is a wire displacement along the coil axis direction and a non-traverse section where the wire traverse is not executed; the turn shift section is located only on a side of the coil end section; the non-traverse section is located on both sides of the coil slot section and the other side of the coil end section; each of the coil layers includes a layer shift section where the wire is shifted from an m-th coil layer to an (m+1)-th coil layer; the layer shift section is located only on the coil end side including the turn shift section, and wherein: on the coil end side including the turn shift section are located a start-of-winding wire of the coil, an end-of-winding wire of the coil, a terminal wire latch portion for the start-of-winding wire, and a terminal wire latch portion for the end-of-winding wire; the terminal wire latch portion for the start-of-winding wire is arranged on an extension line along the long side of the bobbin body such that the start-of-winding wire goes straight into a first turn in the coil slot section; and the end-of-winding wire is led directly to the terminal wire latch portion for the end-of-winding wire.