A bearingless motor utilizing a permanent magnet free structure for disposable centrifugal blood pumps
A bearingless motor utilizing a permanent magnet free structure for disposable centrifugal blood pumps
复制标题
一次性离心血泵采用无永磁结构的无轴承电机
DOI：
10.1299/jamdsm.2015jamdsm0046
复制
发表时间：
2015
影响因子：
0.9
通讯作者：
T. Shinshi
中科院分区：
文献类型：
--
作者：
Jun Rao;W. Hijikata;T. Shinshi
一次性离心血泵 (DCBP) 有许多问题需要解决。首先，一次性泵头由于使用稀土磁体，成本较高；其次，由于附加扭矩传递结构，可重复使用部分尺寸较大；第三，由于分配给磁力轴承和磁力耦合器的空间，二次流道的形状复杂。在本文中，我们提出了一种采用紧凑的无永磁结构的无轴承电机，该电机可应用于DCBP，并且还满足具有低成本一次性泵头和平滑的二次流道的要求。转子的径向运动和角速度是主动控制的，轴向和倾斜运动是通过磁阻力被动稳定的。在原型无轴承电机中，永磁自由转子可以以高达 3400 rpm 的角速度悬浮和旋转，旋转定位精度小于 ±27 μm，足以支持体外循环。实验结果证明了在 DCBP 中使用所提出的永磁无轴承电机的可行性。
There are a number of problems with disposable centrifugal blood pumps (DCBPs) that need to be addressed. First, there is the high cost of the disposable pump head due to the use of rare earth magnets; secondly, the large size of the reusable part due to the additional torque transmission structure; and thirdly, the complex shape of the secondary flow channel due to the space allocated to the magnetic bearing and the magnetic coupling. In this paper, we propose a bearingless motor utilizing a compact permanent magnet free structure, which can be applied to a DCBP and also satisfies the requirements of having a low cost disposable pump head and a smooth secondary flow channel. The radial motion and angular velocity of the rotor are actively controlled, and the axial and tilt motions are passively stabilized by a magnetic reluctance force. In a prototype bearingless motor, the permanent magnet free rotor could be levitated and rotated at angular velocities of up to 3400 rpm with a rotational positioning accuracy of less than ±27 μm which is sufficient for extracorporeal circulation support. The experimental results demonstrate the feasibility of using the proposed permanent magnet free bearingless motor in a DCBP.
DOI：
10.1109/ecce.2009.5316302
发表时间：
2009-11
期刊：
2009 IEEE Energy Conversion Congress and Exposition
影响因子：
--
作者：
J. Asama;T. Fukao;A. Chiba;Azizur Rahman;T. Oiwa
通讯作者：
J. Asama;T. Fukao;A. Chiba;Azizur Rahman;T. Oiwa
DOI：
10.1177/0954411911422842
发表时间：
2011-12
期刊：
Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
影响因子：
--
作者：
W. Hijikata;T. Mamiya;T. Shinshi;S. Takatani
通讯作者：
W. Hijikata;T. Mamiya;T. Shinshi;S. Takatani