公开(公告)号：US06317963B1

公开(公告)日：2001-11-20

申请号：US09368271

申请日：1999-08-03

申请人： Theodore Clifton Powers ,  Kris Harold Campbell

发明人： Theodore Clifton Powers ,  Kris Harold Campbell

IPC分类号： H02K1500

CPC分类号： H02K5/1732 ,  H02K5/18 ,  H02K5/20 ,  H02K15/14 ,  Y10T29/49009 ,  Y10T29/49012

摘要： A dynamoelectric machine (10) includes a stator (12), a rotor (14), a bearing (16) supporting the rotor (14) for rotation about an axis (20), and a housing (22). The housing (22) is manufactured by first forming a unitary metallic extrusion (24) including a radially innermost nominally cylindrical member (26), a radially outermost nominally cylindrical member (28), a central nominally cylindrical member (30) spaced radially between the innermost and outermost members (26, 28), a set of spokes (32) connecting the innermost and central cylindrical members (26, 30) together, a set of arcuate cooling passages (34), a set of spokes (36) connecting the central outermost cylindrical members (30, 28) together, and a set of arcuate cooling passages (38). A set of fins (40) are also formed during the extrusion process extending radially from the central cylindrical member (30) into the cooling passages (38). The spokes (32, 36), passages (34, 38), fins (40), and cylindrical members (26, 28, 30) extend parallel to the axis (20) from a first end (42) of the extrusion (24) to a second end (44) of the extrusion (24), with the cylindrical members (26, 28, 30) preferably being at least nominally concentric on the axis (20). After the extrusion (24) is formed, sufficient lengths of the innermost cylindrical member (26) and the spokes (32) are machined away to create a cavity (46) in the central cylindrical member (30) for receiving the stator (12) and rotor (14).

摘要翻译： 电动机（10）包括定子（12），转子（14），支撑用于围绕轴线（20）旋转的转子（14）的轴承（16）和壳体（22）。 壳体（22）通过首先形成包括径向最内部的标称圆柱形构件（26），径向最外面的标称圆柱形构件（28）的中心标称圆柱形构件（30），在第 最内侧和最外侧的构件（26,28），一组将最内圆柱形构件和中心圆柱形构件（26,30）连接在一起的辐条（32），一组弧形冷却通道（34），一组辐条（36） 中心最外面的圆柱形构件（30,28）在一起，以及一组弧形冷却通道（38）。 在从中心圆柱形构件（30）径向延伸到冷却通道（38）中的挤出过程中也形成一组翅片（40）。 从挤出件（24）的第一端部（42）将轮辐（32,36），通道（34,38），翅片（40）和圆柱形构件（26,28,30）平行于轴线（20）延伸， ）到挤出件（24）的第二端（44），其中圆柱形构件（26,28,30）优选地在轴线（20）上至少在名义上同心。 在形成挤出（24）之后，将最内圆柱形构件（26）和轮辐（32）的足够长度加工成在中心圆柱形构件（30）中形成用于接纳定子（12）的空腔（46） 和转子（14）。