Hand-held power tool having an electronically commutated electric motor and an integrated electronics system

US9662760B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Manfred Schuele · Gaildorf, DE
• Helmut Wanek · Lauffen am Neckar, DE
• Cornelius Boeck · Tauberbischofsheim, DE
• Daniel Barth · Echterdingen, DE
• Joachim Schadow · Stuttgart, DE
• Joerg Maute · Sindelfingen, DE
• Florian Esenwein · Echterdingen, DE
• Manfred Lutz · Schweinfurt, DE

Key dates

• Filing date: Dec 9, 2013
• Grant date: May 30, 2017
• Expiry date: Jun 13, 2034

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B25F5/00
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A hand-held power tool, in particular an angle grinder, having a drive unit, has an electronically commutated electric motor and has an electronics system which is integrated in an appliance housing. The ratio of a weight of the hand-held power tool MHWZM to a nominal power PN is selected in such a way that, in a power range of from 0 to 1200 W, the ratio of the weight of the hand-held power tool MHWXM to the nominal power PN is at most 0.75 g/W*PN+1200 g, and, at a value of the nominal power of greater than 1200 W, the ratio of the weight of the hand-held power tool to the nominal power is at most 2.2*PN−540 g.