发明名称 |
Low profile d.c. brushless motor for an impeller mechanism or the like |
摘要 |
An impeller and at least a portion of a cooperating peripheral volute may be integrated are integrally injection molded with, concentric outer rotor and inner stator assemblies, respectively, to achieve a low profile precision impeller mechanism based on an improved brushless D.C. motor with low length to diameter ratio and suitable for use in a variety of other applications. A rotating cap has an inner circumference which is molded about an outer ferromagnetic back ring that in turn supports a rotor magnet having a number of poles of alternating polarity and separated by a relatively small cylindrical air gap from a fixed stator assembly. The fixed stator assembly is integrally molded into a base housing having a bearing support that extends upwardly through the center of the stator assembly and that is rotatably coupled to a rotating shaft that extends downwardly from the center of the rotating cap.
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申请公布号 |
US8129872(B2) |
申请公布日期 |
2012.03.06 |
申请号 |
US20100891067 |
申请日期 |
2010.09.27 |
申请人 |
HOFFMAN LESLIE C.;KENYON BARTON J.;SEARS DAVID B.;RESMED MOTOR TECHNOLOGIES INC. |
发明人 |
HOFFMAN LESLIE C.;KENYON BARTON J.;SEARS DAVID B. |
分类号 |
F04D13/06;F04D25/06;H02K5/08;H02K5/22;H02K7/08;H02K7/14 |
主分类号 |
F04D13/06 |
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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