Christian NESSEL,René RICHTER,Robert WITT,Richard GUENTHER
申请号：
US15538729
公开号：
US20170368256A1
申请日:
2015.12.18
申请国别(地区):
US
年份:
2017
代理人:
摘要：
The disclosure relates to a drug delivery device having a drive unit includes a stator comprising a plurality of coils consecutively arranged in an axial direction, and an armature axially movable within the stator, the armature including a number of magnets and pole shoes consecutively arranged in the axial direction. A respective pole shoe is arranged between respectively neighbouring magnets. At least one axial end of the armature comprises a terminal pole shoe.
