Granted Patent B2

US 12,732,055 · App. 18/602,275 · Granted Sep 8, 2026

Inventors: Madhur M. Purohit (Ellicott City, MD); Alastair G. Valentine (Baltimore, MD); Anjali Garg (Gambrills, MD); John B. Fogle (White Hall, MD); Timothy A. Smith (Perry Hall, MD); William J. Lennon (Charlotte, NC)

Assignee: BLACK AND DECKER INC.

H02K3/522B25C1/06H02K7/145B25C1/008H02K2203/06

Abstract

Claims (17)

1 . A power tool comprising:

a housing including a motor case and a handle;

a motor disposed within the motor case, the motor including a rotor and a stator having a plurality of windings, wherein a plurality of motor lead wires extends from the plurality of windings;

a battery receiving portion provided on an end of the handle configured to receive a removable battery pack;

a control unit configured to receive electric power form the battery pack and output a plurality of power wires; and

a wire guide and retention unit disposed within the handle, the wire guide and retention unit including a main body and a plurality of ring terminals fastened to the main body, each ring terminal of the plurality of ring terminals being configured to couple with a respective motor lead wire of the plurality of motor lead wires on one end and with a respective power wire of the plurality of power wires on another end.

2 . The power tool of claim 1 , wherein main body includes a plurality of elongate walls forming a plurality of channels therebetween, wherein the plurality of ring terminals is disposed within the plurality of channels.

3 . The power tool of claim 1 , wherein the wire guide and retention unit includes a cover mounted on the main body.

4 . The power tool of claim 3 , wherein the cover includes at least one wire guide and retention feature that captures a plurality of control wires extending between the control unit and at least one other component of the power tool.

5 . The power tool of claim 3 , wherein the cover and the main body mate to form a plurality of discrete compartments, each compartment of the plurality of discrete compartments having a first opening for receiving a respective one of the plurality of motor lead wires and a second opening for receiving a respective one of the plurality of power wires.

6 . The power tool of claim 1 , wherein the plurality of ring terminals is oriented along an alignment axis that is less than 90 degrees relative to a longitudinal axis of the handle.

7 . The power tool of claim 6 , wherein an angle formed between the alignment axis and the longitudinal axis of the handle is between approximately 30 degrees to 60 degrees.

8 . The power tool of claim 6 , wherein main body includes a plurality of elongate walls forming a plurality of channels therebetween, wherein the plurality of ring terminals is disposed within the plurality of channels, and wherein each elongated wall includes a rounded portion formed around a respective one of the plurality of ring terminals.

9 . The power tool of claim 1 , wherein the control unit is located proximate the battery receiving portion at a foot portion of the handle.

10 . The power tool of claim 1 , wherein the wire guide and retention unit includes a cover mated together with the main body to at least partially form a plurality of compartments, each of the ring terminals being at least partially received in a respective compartment of the plurality of compartments formed by the cover and the main body.

11 . The power tool of claim 10 , wherein the cover includes a plurality of ribs on its outer surface, and wherein the plurality of ribs receive and guide a plurality of control wires extending from the control unit.

12 . The power tool of claim 11 , wherein the motor lead wires are coupled to the respective ring terminals in the respective compartments, and the power wires are coupled to the respective ring terminals in the respective compartments, and wherein the plurality of control wires are separated from the plurality of plurality of motor lead wires and the plurality of power wires by at least the cover.

Assignments (1)

Continuity (2)

References Cited (22)