Patent · US Active

Converter-fed single strand short stroke linear motor

US8102085B2 · kind B2 · utility

4Cited by

3References

2Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Zeljko Jajtic · Birkenfeld, DE
Markus Knorr · Augsburg, DE

Key dates

Filing date	Dec 19, 2007
Grant date	Jan 24, 2012
Priority date	—
Expiry date	May 19, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH02K2213/03
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a short stroke linear motor. In order to improve the dynamics of such a short stroke linear motor, the primary part (12) of the motor is provided with a single-strand winding. The primary part (12) and the secondary part (1) have essentially the same pole pitch (tZ=tM). In this way, a very high motor torque is produced in a limited range of displacement. In order to be able to reach a plurality of working positions without an inactive intermediate position, a short stroke linear motor having a double-strand winding is additionally provided, both strands being operated at a phase difference of <90°. The pole pitch of the primary part and the secondary part are again essentially the same.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.