Invention Grant
- Patent Title: Linear actuator
- Patent Title (中): 线性执行机构
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Application No.: US11911638Application Date: 2008-06-10
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Publication No.: US07989991B2Publication Date: 2011-08-02
- Inventor: Andreas Gruendl , Bernhard Hoffmann
- Applicant: Andreas Gruendl , Bernhard Hoffmann
- Applicant Address: DE Starnberg
- Assignee: Compact Dynamics, GmbH
- Current Assignee: Compact Dynamics, GmbH
- Current Assignee Address: DE Starnberg
- Agency: Hiscock & Barclay, LLP
- Agent Thomas R. FitzGerald, Esq.
- Priority: DE102005017481 20050415
- Main IPC: H02K1/12
- IPC: H02K1/12

Abstract:
A linear actuator is provided with an armature and a stator. The armature has at least two stacks of permanently magnetic rods one over another, the stacks being arranged at a predetermined distance from each other. The stator is at least partly produced from a soft magnetic material, and comprises at least two pairs of teeth with teeth opposite each other, each pair of teeth receiving one of the two stacks between them while forming an air gap. The stator has at least two magnetically conducting inner areas which are located between the two stacks and arranged at a predetermined distance from each other in the direction of motion of the armature. The inner areas are each at least partially surrounded by a substantially hollow cylindrical coil arrangement, the central longitudinal axis of which is oriented substantially transversely to the direction of motion of the armature.
Public/Granted literature
- US20080284259A1 Linear Actuator Public/Granted day:2008-11-20
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