USPTO Patent Granted for Power Tool Battery Terminal Block Assembly

ChangeBridge: Patent Grants - Power Supply (H02J)

Published March 24th, 2026

Detected March 25th, 2026

Summary

The USPTO has granted a patent (US12587069B2) to Milwaukee Electric Tool Corporation for a power tool battery terminal block assembly. The patent describes an assembly that includes a heat sink to manage heat transfer away from the battery terminal, potentially improving tool performance and safety.

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What changed

The United States Patent and Trademark Office (USPTO) has granted patent US12587069B2 for a power tool battery terminal block assembly. The patent, assigned to Milwaukee Electric Tool Corporation, details an assembly featuring a heat sink in thermal communication with the tool-side battery terminal and terminal block. This design aims to transfer heat away from these components, addressing potential thermal management issues during power tool operation.

This patent grant signifies a new intellectual property asset for Milwaukee Electric Tool Corporation. While not a regulatory requirement for other manufacturers, it establishes a patented technology in the power tool industry. Companies developing similar battery terminal assemblies should be aware of this patent to avoid potential infringement issues.

Source document (simplified)

← USPTO Patent Grants

Power tool battery terminal block assembly

Grant US12587069B2 Kind: B2 Mar 24, 2026

Assignee

Milwaukee Electric Tool Corporation

Inventors

Spencer Stingl, Jonathan J. Christian, Alan J. Rehfeldt, Yong Zhang

Abstract

A power tool includes a motor configured to drive a working element and a battery receptacle. The battery receptacle is configured to receive a battery and includes a tool-side battery terminal, a tool-side terminal block, and a heat sink. The tool-side battery terminal is electrically coupled to the motor and configured to transfer electrical current from the battery to the motor. The tool-side terminal block is mounted to the tool-side battery terminal. The heat sink is in thermal communication with at least one of the tool-side terminal block or the tool-side battery terminal. The heat sink comprises a thermally conductive material configured to transfer heat away from the tool-side battery terminal.

CPC Classifications

H02K 9/227 H02K 5/225 H02K 9/14 H02K 13/10 H01M 19/613 H01M 19/6235 H01M 19/63 H01M 19/6551 H01M 19/6563 B25D 16/006 F04D 25/0673 F04D 25/06 H02J 7/0063