Tti (macao Commercial Offshore) Limited

Techtronic Industries Company Limited

Techtronic Power Tools Technology Limited

Yi Jia Chang

Denis Gaston Fauteux

Yong Min Li

Rafael Maynez

Zhao Jun Shi

Li Hua Xie

Hei Man Lee

A power tool which contains a casing, a brushless motor () mounted inside the casing, a user actuated switch () mounted on the casing, and a circuit board () mounted inside the casing. The brushless motor () is adapted to drive one or more movable parts in the power tool. The circuit board () is mechanically connected to the brushless motor () and the switch () at the same time. As only a single, integrated circuit board () is configured in the power tool, the manufacturing cost is reduced and greater reliance and electrical safety can be achieved.

Power tools with integrated circuit boards

An electric motor includes a stator operable to produce a magnetic field and defining an opening, and a rotor at least partially disposed within the opening. The rotor includes a shaft extending along a rotational axis, a plurality of first core portions each including a plurality of laminations stacked contiguously on the shaft, and a second core portion coupled between each of the first core portions. The first core portions and the second core portion cooperating to define a rotor magnetic core. A plurality of windings is coupled to the rotor magnetic core, and an air flow path is partially defined by the first core portions, the second core portion, and the shaft. The air flow path includes an axial portion that passes through the shaft axially along the rotational axis and a radial portion that extends radially outward through the second core portion.

Electric motor

Growing community of inventors

Dongguan, China

Yi Jia Chang