3-Layer-copper microcoils transformed into 3-D cylindrical stator windings for micromotors

Author

Biefeld, V. ; Springmann, S. ; Lang, Walter

Author_Institution

IMSAS, Univ. of Bremen, Bremen, Germany

fYear

2013

fDate

16-20 June 2013

Firstpage

1915

Lastpage

1918

Abstract

This paper presents the fabrication of a micro motor in order to realize a 2-pole brushless motor with an outer diameter of 4mm. The stator windings are made by microsystem technology and subsequently thermoforming into a cylindrical shape. Key improvements in the fabrication are the add-on of a third copper-layer and the launching of laser cutting technology in combination with a suitable sacrificial layer. Running prototypes of these motors were assembled and characterized.

Keywords

brushless machines; coils; laser beam cutting; microassembling; microfabrication; micromechanical devices; micromotors; stators; thermoforming; 2-pole brushless motor; 3-layer-copper microcoil; 3D cylindrical stator winding; assembling; cylindrical shape; laser cutting technology; microfabrication; micromotor; microsystem technology; sacrificial layer; size 4 mm; thermoforming; Brushless motors; Coils; Copper; Fabrication; Permanent magnet motors; Shape; Thermoforming; Micro motor; SU-8; cylindrical copper coil; laser ablation; thermoforming;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII), 2013 Transducers & Eurosensors XXVII: The 17th International Conference on

Conference_Location

Barcelona

Type

conf

DOI

10.1109/Transducers.2013.6627167

Filename

6627167