公开(公告)号：US09847168B2

公开(公告)日：2017-12-19

申请号：US14389595

申请日：2013-03-27

申请人： NISSHIN STEEL CO., LTD.

发明人： Tomonaga Iwatsu ,  Yukio Katagiri ,  Susumu Fujiwara ,  Akito Kawamoto

IPC分类号： C21D8/02 ,  H01F41/02 ,  C21D8/12 ,  C22C38/00 ,  C22C38/06 ,  H01F1/16 ,  C22C38/02 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C21D6/00 ,  C22C38/20 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  H02K15/00 ,  C21D9/573 ,  C21D9/46

CPC分类号： H01F41/024 ,  C21D6/001 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/02 ,  C21D8/12 ,  C21D8/1233 ,  C21D8/1244 ,  C21D8/125 ,  C21D8/1283 ,  C21D9/46 ,  C21D9/573 ,  C21D2211/002 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/20 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  H01F1/16 ,  H02K15/00

摘要： The present invention manufactures a steel sheet for a rotor core for an IPM motor, wherein the steel sheet has a magnetic flux density B8000 of 1.65 T or more as measured when magnetic field strength is 8000 A/m, and a residual magnetic flux density Br of 0.5 T or more as measured at that time, and optionally, a coercivity Hc of 100 A/m or more as measured after magnetization reaches 8000 A/m. By using the steel sheet manufactured according to the present invention for a rotor core of an IPM motor, it is possible to increase further an output torque in a high-speed rotational range and raise further the maximum rotational speed.

公开(公告)号：US20150047757A1

公开(公告)日：2015-02-19

申请号：US14389602

申请日：2013-03-27

申请人： NISSHIN STEEL CO., LTD.

发明人： Tomonaga Iwatsu ,  Yukio Katagiri ,  Susumu Fujiwara ,  Akito Kawamoto

IPC分类号： H01F1/18 ,  C21D1/26 ,  C22C38/32 ,  C22C38/28 ,  C22C38/26 ,  C22C38/22 ,  C22C38/20 ,  C22C38/16 ,  C22C38/14 ,  C22C38/12 ,  C22C38/08 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  H01F1/147 ,  C21D8/12

CPC分类号： C21D9/46 ,  C21D1/26 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0252 ,  C21D8/1233 ,  C21D8/1238 ,  C21D8/1266 ,  C21D8/1288 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C21D2211/009 ,  C22C38/00 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/20 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  H01F1/14716 ,  H01F1/14725 ,  H01F1/14775 ,  H01F1/14783 ,  H01F1/14791 ,  H01F1/18 ,  H02K1/2706 ,  Y10T428/31678

摘要： The present invention provides a steel sheet for a rotor core for an IPM motor, wherein the steel sheet has a magnetic flux density B8000 of 1.65 T or more as measured when magnetic field strength is 8000 A/m, and a residual magnetic flux density Br of 0.5 T or more as measured at that time, and optionally, a coercivity Hc of 100 A/m or more as measured after magnetization reaches 8000 A/m. By using the steel sheet of the present, invention for a rotor core of an IPM motor, it is possible to increase further an output torque in a high-speed rotational range and raise further the maximum, rotational speed.

摘要翻译： 本发明提供一种用于IPM电动机的转子铁心用钢板，其特征在于，所述钢板的磁通密度B8000为1.65T以上，磁场强度为8000A / m时测定，剩余磁通密度Br 在此时测定为0.5T以上，任意地，磁化后测定的矫顽力Hc为100A / m以上，达到8000A / m。 通过使用本发明的用于IPM电动机的转子铁心的发明，可以进一步提高高速旋转范围的输出转矩，进一步提高最大转速。

公开(公告)号：US20150047746A1

公开(公告)日：2015-02-19

申请号：US14389595

申请日：2013-03-27

申请人： NISSHIN STEEL CO., LTD.

发明人： Tomonaga Iwatsu ,  Yukio Katagiri ,  Susumu Fujiwara ,  Akito Kawamoto

IPC分类号： H01F41/02 ,  C21D9/46 ,  C21D8/12 ,  C21D6/00 ,  C22C38/32 ,  C22C38/28 ,  C22C38/26 ,  C22C38/20 ,  C22C38/16 ,  C22C38/14 ,  C22C38/12 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  H02K15/00

CPC分类号： H01F41/024 ,  C21D6/001 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/02 ,  C21D8/12 ,  C21D8/1233 ,  C21D8/1244 ,  C21D8/125 ,  C21D8/1283 ,  C21D9/46 ,  C21D9/573 ,  C21D2211/002 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/20 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  H01F1/16 ,  H02K15/00

摘要： The present invention manufactures a steel sheet for a rotor core for an IPM motor, wherein the steel sheet has a magnetic flux density B8000 of 1.65 T or more as measured when magnetic field strength is 8000 A/m, and a residual magnetic flux density Br of 0.5 T or more as measured at that time, and optionally, a coercivity Hc of 100 A/m or more as measured after magnetization reaches 8000 A/m. By using the steel sheet manufactured according to the present invention for a rotor core of an IPM motor, it is possible to increase further an output torque in a high-speed rotational range and raise further the maximum rotational speed.

摘要翻译： 本发明制造用于IPM电动机的转子铁芯用钢板，其中，当磁场强度为8000A / m时，钢板的磁通密度B8000为1.65T以上，剩余磁通密度Br 在此时测定为0.5T以上，任意地，磁化后测定的矫顽力Hc为100A / m以上，达到8000A / m。 通过使用根据本发明制造的钢板用于IPM电动机的转子铁芯，可以进一步增加高速旋转范围内的输出转矩并进一步提高最大转速。