发明申请
US20080309260A1 Shaft Type Linear Motor, Mounting Head and Component Mounting Device With the Linear Motor, and Position Detection Method for Shaft for Driving the Linear Motor
审中-公开
轴式直线电机，带线性电机的安装头和部件安装装置以及用于驱动线性电机的轴的位置检测方法
- 专利标题： Shaft Type Linear Motor, Mounting Head and Component Mounting Device With the Linear Motor, and Position Detection Method for Shaft for Driving the Linear Motor
- 专利标题（中）： 轴式直线电机，带线性电机的安装头和部件安装装置以及用于驱动线性电机的轴的位置检测方法
-
申请号： US11658447申请日： 2005-07-06
-
公开(公告)号： US20080309260A1公开(公告)日： 2008-12-18
- 发明人: Kazunori Kanai , Hidehiro Saho , Noboru Yamasaki , Chikara Takata , Seiichi Matsuo , Yoshikazu Higuchi
- 申请人： Kazunori Kanai , Hidehiro Saho , Noboru Yamasaki , Chikara Takata , Seiichi Matsuo , Yoshikazu Higuchi
- 优先权： JP2004-221482 20040729; JP2004-374075 20041224
- 国际申请： PCT/JP05/12491 WO 20050706
- 主分类号： H02K41/03
- IPC分类号： H02K41/03 ; H02P6/16 ; B23P19/04
摘要：
A shaft type linear motor including a stator in which plural hollow cylindrical coils are disposed so that the center through holes thereof are arranged linearly so as to form a shaft insertion hole; a driving shaft including permanent magnets, the same magnetic poles, the north or south magnetic poles, being disposed in the axial direction so as to be opposed to each other, and movably inserted into the stator; sensor units disposed in the axial direction of the stator so as to have a predetermined clearance therebetween and equipped with plural magnetic pole detection sensors that detect the magnetic field intensities of the permanent magnets and output magnetic field intensity signals; and a detection section for receiving the magnetic field intensity signals output from the magnetic pole detection sensors and for detecting the position of the driving shaft on the basis of the plural magnetic field intensity signals.