Impact tool and electric motor
AssigneeMilwaukee Electric Tool Corporation
InventorGerald A. Zucca
Life of this patent
Estimating the term…
Abstract
An electric motor includes a rotor assembly and a stator assembly. The stator assembly includes a plurality of teeth, a plurality of coils supported about the plurality of teeth, and a conductive terminal electrically connected to at least one coil of the plurality of coils. The conductive terminal includes a lead portion. The electric motor also includes a printed circuit board coupled to the stator assembly and electrically connected to the lead portion. The electric motor further includes a solder cup supported on the lead portion between the printed circuit board and the stator assembly. The solder cup includes a wide end facing toward the printed circuit board, and a narrow end opposite the wide end.
Claims20
An electric motor comprising:
- a rotor assembly;
- a stator assembly including
- a plurality of teeth,
- a plurality of coils supported about the plurality of teeth, and
- a conductive terminal electrically connected to at least one coil of the plurality of coils, the conductive terminal including a lead portion;
- a printed circuit board coupled to the stator assembly and electrically connected to the lead portion;
- and
- a solder cup supported on the lead portion between the printed circuit board and the stator assembly, the solder cup having a wide end facing toward the printed circuit board, and a narrow end opposite the wide end.
A printed circuit board assembly coupled to a lead portion of a conductive terminal of an electric motor, the printed circuit board assembly comprising:
- a printed circuit board including a solder pad;
- and
- a solder cup supported on the lead portion adjacent the printed circuit board, the solder cup having a wide end facing toward the printed circuit board and a narrow end opposite the wide end.
A solder cup configured to reside on a lead portion of a conductive terminal of an electric motor, the conductive terminal further including a central plate and a pair of shoulders defined where the lead portion joins the central plate, the lead portion being soldered to a printed circuit board, the solder cup comprising:
- a wide end;
- and
- a narrow end opposite the wide end, the narrow end defining a cutout configured to receive at least one shoulder of the pair of shoulders;
- wherein the solder cup has a funnel shape;
- and
- wherein the solder cup defines a center aperture extending between the wide end and the narrow end and configured to receive the lead portion.
Dependencies are inferred from the claim text.