Elektrowerkzeug, Selbstfahrende Vorrichtung und Motor

Details

Veröffentlichungs-Nr.

EP4815260

Anmeldetag

5. März 2025

Veröffentlichung

18. September 2025

Rechtsraum

EP

IPC

H02K1/14

Abstract

A power tool includes: a functional part (20); an electric motor (10) that drives the functional part (20) to perform work; and a power supply device (30) that supplies power to at least the electric motor (10). The electric motor (10) includes a motor shaft (14), a stator assembly (11), a rotor assembly (12), and a control assembly (13). The stator assembly (11), the rotor assembly (12), and the control assembly (13) are coaxially disposed along the motor shaft (14), and the stator assembly (11) and the rotor assembly (12) are nested with each other. The rotor assembly (12) includes a rotor winding (121). The control assembly (13) includes a stationary portion (131) and a rotating portion (132). The stationary portion (131) remains fixed relative to the stator assembly (11) during operation of the power tool, and the rotating portion (132) rotates about the motor shaft (14) with the rotor winding (121) during the operation of the power tool. Through non-contact coupling between the stationary portion (131) and the rotating portion (132), the control assembly (13) transfers electrical energy from the power supply device (30) to the rotor winding (121) or detects parameters related to a rotor current of the rotor winding (121) and/or a rotor voltage of the rotor winding (121).

Anmelder

Firma

Nanjing Chervon Industry Co., Ltd.

Land

🇨🇳 China

Fachgebiete