发明名称 |
Drive assembly, in particular for a lifting device and/or for a vehicle propulsion |
摘要 |
The arrangement has a switchable pole three-phase motor (2) with windings for at least two different drive speeds, with a pole changing element (5) connecting the motor to a voltage supply for changing between the motor drive speeds, whereby a power switching element (3) is connected before the pole changing element and the motor can be isolated from the voltage supply for the pole changing process. |
申请公布号 |
EP1492221(B1) |
申请公布日期 |
2011.08.17 |
申请号 |
EP20040013985 |
申请日期 |
2004.06.15 |
申请人 |
DEMAG CRANES & COMPONENTS GMBH |
发明人 |
FREITAG, HOLGER;MUENZEBROCK, ANTON;HASENACK, BURKHARD;PERSICO, GIULIANO;APPEL, ERIK |
分类号 |
H02P7/00;B66C13/26;B66C13/30;B66D1/46;B66D3/20;H02P1/38;H02P23/00;H02P25/20 |
主分类号 |
H02P7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|