FIELD OF THE INVENTION

The present invention relates to tools, such as power tools, and more particularly to power tools including an electric motor having windings wound on a stator.

BACKGROUND OF THE INVENTION

Tools, such as power tools, can include an electric motor having a stator to generate a magnetic field. The stator may include windings wound in slots to form coils, and terminals electrically connecting the coils to a power source.

SUMMARY OF THE INVENTION

In one construction, an electric motor includes a stator assembly including a lamination stack, a printed circuit board assembly (PCBA), and a plurality of windings. The PCBA is coupled to the lamination stack at a first axial end of the stator assembly. The windings are wrapped about the lamination stack to form coils. Each winding includes crossover portions extending about a portion of a circumference of the stator assembly to connect pairs of opposite coils. The crossover portions are located at a second axial end of the stator assembly opposite the first axial end.

In another construction, an electric motor includes a stator assembly including a lamination stack having an outer surface, a printed circuit board assembly (PCBA), a plurality of windings wrapped about the lamination stack to form coils, and terminals coupled to the outer surface of the lamination stack. The PCBA is coupled to the lamination stack at a first axial end of the stator assembly. Each winding includes crossover portions located at a second axial end of the stator assembly opposite the first axial end. The crossover portions extend about a portion of a circumference of the stator assembly to connect pairs of opposite coils. Each terminal extending longitudinally between the first axial end and the second axial end to electrically connect the crossover portions to the PCBA.

In another construction, an electric motor includes a stator assembly including a lamination stack having an outer surface, a plurality of windings wrapped about the stator assembly to form coils, and terminals coupled to the outer surface of the lamination stack. Each winding includes crossover portions extending about a portion of a circumference of the stator assembly to connect pairs of opposite coils. The terminals extend longitudinally between opposite first and second axial ends of the lamination stack, from a connection portion configured to electrically connect to a power source, to a tang configured to electrically connect to at least one of the crossover portions.

