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1. 发明授权

US10686351B2 Rotor manufacturing method and rotor 有权
公开(公告)号：US10686351B2
公开(公告)日：2020-06-16
申请号：US15745958
申请日：2016-06-03
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Yoshitaka Okuyama , Yoshiki Yasuda , Yoshinari Asano
IPC分类号： H02K15/03 , H02K1/27 , B29C45/00 , B29C45/14 , B29C45/27 , B29C45/58 , H02K29/03 , B29K81/00 , B29K103/06 , B29L31/34 , H02K1/02 , H02K15/12
摘要： Disclosed herein is a method for manufacturing a rotor, the method including an injection process of injecting a bonded magnet material into a cavity of a molding die generating a magnetic field in the cavity so that the bonded magnet material is poured into each of the magnet slots in the rotor core set in the cavity through one of openings of each magnet slot, wherein the molding die used in the injection process has gates which respectively open at positions corresponding to regions, each of which ensures a view from the one of openings to the other opening of the magnet slot along an axial center of the rotor core.

2. 发明申请

US20150171680A1 INTERIOR PERMANENT MAGNET ROTARY ELECTRIC MACHINE 审中-公开
标题翻译：内置永磁电机
公开(公告)号：US20150171680A1
公开(公告)日：2015-06-18
申请号：US14406970
申请日：2013-06-12
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Nobuyuki Kifuji , Yoshinari Asano , Shintarou Araki
IPC分类号： H02K1/27 , H02K3/04
摘要： A field element has permanent magnets embedded in a core and extending in the axial direction parallel to a rotation axis. Both a magnetic pole face of the permanent magnet close to an armature and a magnetic pole face away from the armature show arcs concaved toward an armature side. A radius of an arc shown by the magnetic pole face away from the armature is larger than a radius of an arc shown by the magnetic pole face close to the armature. Further, a focal point of the arc shown by the magnetic pole face away from the armature is further away from the permanent magnet than a focal point of the arc shown by the magnetic pole face close to the armature. Also, the focal points and the rotation axis are arranged on one straight line as viewed from the axial direction.
摘要翻译：场元件具有埋入芯中的永磁体，并且在轴向上平行于旋转轴线延伸。靠近电枢的永磁体的磁极面和远离电枢的磁极表面都朝向电枢侧凹陷。由磁极表面远离电枢的圆弧的半径大于靠近电枢的磁极面所示的圆弧的半径。此外，磁极表面远离电枢的焦点远离永磁体，而不是靠近靠近电枢的磁极面所示的圆弧的焦点。此外，焦点和旋转轴线从轴向观察时排列在一条直线上。

3. 发明授权

US11535781B2 Refrigeration cycle apparatus 有权
公开(公告)号：US11535781B2
公开(公告)日：2022-12-27
申请号：US16955565
申请日：2018-12-18
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Eiji Kumakura , Takuro Yamada , Atsushi Yoshimi , Ikuhiro Iwata , Mitsushi Itano , Daisuke Karube , Yuuki Yotsumoto , Kazuhiro Takahashi , Tatsuya Takakuwa , Yuzo Komatsu , Shun Ohkubo , Keisuke Ohtsuka , Yoshinari Asano , Keiji Aota , Yuuichi Yanagi , Yoshikazu Nakao , Takeo Abe , Yumi Toda , Tetsushi Tsuda
IPC分类号： C09K5/04 , F25B13/00 , F25B29/00 , F25B31/00 , F25B49/02 , F24H4/02 , F25B41/00 , F24F1/0059 , F24F1/24 , F24F13/30 , F24F1/0067 , F24F1/0063 , F24F3/052 , F25B7/00 , F25B39/00 , F25B39/02 , F24F1/14 , F24F1/32 , F24F1/34 , F24F1/38 , F25B9/00 , F25B1/00 , F25B31/02 , F24F5/00 , F24F11/88 , F25B1/04 , F24H1/00 , F25B21/00 , F25B41/34 , H02K7/14
摘要： A refrigeration cycle apparatus (1) is capable of performing a refrigeration cycle using a small-GWP refrigerant. The refrigeration cycle apparatus (1) includes a refrigerant circuit (10) and a refrigerant enclosed in the refrigerant circuit (10). The refrigerant circuit includes a compressor (21), a condenser (23), a decompressing section (24), and an evaporator (31). The refrigerant contains at least 1,2-difluoroethylene.

4. 发明授权

US10277100B2 Rotating electric machine 有权
公开(公告)号：US10277100B2
公开(公告)日：2019-04-30
申请号：US15761481
申请日：2016-08-29
申请人： DAIKIN INDUSTRIES, LTD. , NAGOYA INSTITUTE OF TECHNOLOGY
发明人： Yoshinari Asano , Takashi Kosaka
IPC分类号： H02K1/00 , H02K19/12 , H02K21/38 , H02K21/04 , H02K3/48
摘要： A stator core and a rotor core are provided. The stator core includes field windings receiving a direct current, and armature windings receiving an alternating current. Permanent magnets, each housed in one of the slots together with ones of the field windings, and in contact with the ones of the field windings, are provided. The field windings are provided on both of inner and outer circumferential sides of the permanent magnets.

5. 发明授权

US09923424B2 Radial gap type rotating electrical machine, blower, compressor, and air conditioner 有权
公开(公告)号：US09923424B2
公开(公告)日：2018-03-20
申请号：US14430987
申请日：2013-07-12
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Shin Nakamasu , Yoshinari Asano
IPC分类号： H02K1/27 , F04D13/06 , F04B17/03 , H02K1/30
CPC分类号： H02K1/2786 , F04B17/03 , F04B35/04 , F04B39/00 , F04D13/06 , F04D25/0633 , F04D25/064 , H02K1/30 , H02K21/22 , H02K2213/03
摘要： A radial gap type rotating electrical machine includes a field and an armature. The field includes a permanent magnet and a magnetic ring which serves as a back yoke of the permanent magnet. The magnetic ring is provided at a position farther from the armature than the permanent magnet, and includes a recess at a magnetic pole center. The magnetic pole center is a center of a magnetic pole in a circumferential direction with respect to a rotation axis. A thickness of the recess in the radial direction around the rotation axis as a center comes to locally thin.

6. 发明授权

US11450465B2 Magnetic field application device 有权
公开(公告)号：US11450465B2
公开(公告)日：2022-09-20
申请号：US17185375
申请日：2021-02-25
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Akane Kayano , Yoshinari Asano
IPC分类号： H01F7/00 , H01F7/06 , H01F7/20 , F25B21/04
摘要： A magnetic field application device includes a magnetic field application unit provided with a magnetic working substance, a permanent magnet, a yoke and a coil. The magnetic field application unit applies a magnetic field to the magnetic working substance. The yoke forms at least two closed magnetic circuits, each being a closed circuit that magnetically connects both ends in a magnetization direction of the permanent magnet. The coil is capable of changing an intensity of the magnetic field applied to the magnetic working substance. The coil is provided in at least one of the closed magnetic circuits. The magnetic field application unit is disposed in at least one of the closed magnetic circuits. A magnetic flux of the permanent magnet is branched to flow through two or more of the closed magnetic circuits including the closed magnetic circuit provided with the magnetic field application unit when the coil is non-energized.

7. 发明授权

US10693334B2 Electric rotary machine 有权
公开(公告)号：US10693334B2
公开(公告)日：2020-06-23
申请号：US16604054
申请日：2018-04-12
申请人： DAIKIN INDUSTRIES, LTD. , NAGOYA INSTITUTE OF TECHNOLOGY
发明人： Yoshinari Asano , Toshinari Kondou , Yoshihito Sanga , Takashi Kosaka
IPC分类号： H02K1/16 , H02K1/17 , H02K3/12 , H02K3/04 , H02K19/12 , H02K21/04
摘要： A stator core including field slots housing field windings and armature slots housing armature windings is provided. Permanent magnets are housed in the respective armature slots. The armature windings are configured by a first winding and at least one second winding. The field winding passes over the permanent magnet. The second windings each have a part embedded between a coil end of the field winding and teeth around which the field winding is around.

8. 发明授权

US10348174B2 Electric motor 有权
公开(公告)号：US10348174B2
公开(公告)日：2019-07-09
申请号：US15500014
申请日：2015-06-19
申请人： DAIKIN INDUSTRIES, LTD. , Nagoya Institute of Technology
发明人： Yoshinari Asano , Takashi Kosaka
IPC分类号： H02K1/00 , H02K19/12 , H02K21/04 , H02K21/44 , H02K1/16 , H02K1/17 , H02K21/38
摘要： An electric motor includes a rotor and a stator including a stator core, a plurality of armature windings, a plurality of field windings, and a plurality of bonded magnets. The stator core has a plurality of teeth alternately defining field slots and armature slots along a circumferential direction, and a stator yoke magnetically coupling the plurality of teeth opposite the rotor. Each armature winding is wound around two of the teeth sandwiched between an adjacent pair of the armature slots. Each field winding is wound around two of the teeth sandwiched between an adjacent pair of the field slots. The magnets are individually located in the field slots while opposing the field windings in the radial direction. Each adjacent pair of the magnets along the circumferential direction respectively has an adjacent pair of pole surfaces, with the adjacent pair of pole surfaces having a same polarity.

9. 发明授权

US11201529B2 Rotary electric machine 有权
公开(公告)号：US11201529B2
公开(公告)日：2021-12-14
申请号：US16470318
申请日：2017-12-20
申请人： DAIKIN INDUSTRIES, LTD. , NAGOYA INSTITUTE OF TECHNOLOGY
发明人： Yoshinari Asano , Toshinari Kondou , Yoshihito Sanga , Yoshifumi Maeda , Takashi Kosaka
IPC分类号： H02K21/04 , H02K1/17 , H02K21/44 , H02K21/38 , H02K23/34 , H02K1/16 , H02K3/47 , H02K23/40
摘要： A stator core including field slots housing field windings and armature slots housing armature windings is provided. Permanent magnets are housed in the respective armature slots. Field windings face to the permanent magnets directly or via the stator core on the outer and inner circumferential sides. A coil end of one of the armature windings straddles the predetermined one of the field slots and passes over the axial end face of each of the permanent magnets in the corresponding one of the field slots over which the coil end straddles.

10. 发明授权

US10566859B2 Rotor 有权
公开(公告)号：US10566859B2
公开(公告)日：2020-02-18
申请号：US15759281
申请日：2016-09-27
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Yoshinari Asano , Yoshiki Yasuda , Masaki Hirano
IPC分类号： H02K1/27 , H02K21/14 , H02K15/03 , H02K29/03
摘要： A rotor includes a rotor core and a bond magnet. The rotor core has core blocks and a partition core sandwiched between the core blocks in an axial direction. Magnet holes pass through the core blocks and the partition core in the axial direction, respectively, and the magnet hole is communicated with the magnet holes. Positions of the magnet holes in a circumferential direction are deviated from each other. The bond magnet fills the magnet holes.

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