发明名称 |
PROVISION OF A NORMAL FORCE TO ELECTROMECHANICAL MOTOR |
摘要 |
An electromechanical motor assembly includes a stator, a body to be moved and a stator support. The stator has a plurality of electromechanical actuators for moving the body by repetition of steps ensuring that at least one of the electromechanical actuators is in non-sliding contact with the body at every time. The assembly further includes a force applying arrangement for supplying a normal force (N) between the stator and the stator support by at least one spring arrangement. The spring arrangement has a spring constant in the direction (Z) normal to the surface of the body that is lower than 5% of the ratio between the normal force and the average height uncertainty of the surface of the body. The force applying arrangement includes a lateral fixing plate attached between the stator and the support parallel to the main motion direction (X) and juxtaposed to the surface of the body. |
申请公布号 |
US2012212103(A1) |
申请公布日期 |
2012.08.23 |
申请号 |
US200913505313 |
申请日期 |
2009.11.11 |
申请人 |
BENKOWSKI PER;JOHANSSON STEFAN;PIEZOMOTOR UPPSALA AB |
发明人 |
BENKOWSKI PER;JOHANSSON STEFAN |
分类号 |
H01L41/09 |
主分类号 |
H01L41/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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