Motor, especially motor for hand tool and machine

Application Number  00129492 Application Date  2000.12.29
Publication Number  1308402 Publication Date  2001.08.15
Priority Information   1999/12/30 DE 19964061.0  
Applicant(s) Name  Robert Bosch GmbH  
Inventor(s) Name  G. Bellger  
Patent Agency Code  72001 Patent Agent  su juan
AbstractAn electric motor, especially an electric motor for hand power tools, is provided with a metal plate flake pack formed by a punching and packing process, wherein said metal plate flake pack comprises a plurality of grooves which are spaced from one another in a peripheral direction and provided with a coating of insulating material and used for accommodating rotor windings, wherein the metal plate pack has an end plate composed of insulating material; a rotor shaft which is rotatablely supported and non rotatablely connected with the flake pack. In order to predigest the manufacture of the rotor and avoid a voltage delay in the case of an error, the groove inner lining and the end plates together with the rotor shaft as shaft ends axially projecting from the end plates are formed as synthetic plastic parts produced by an injection molding.