公开(公告)号：US20190280567A1

公开(公告)日：2019-09-12

申请号：US16347605

申请日：2017-03-30

Applicant: Nidec Corporation

Inventor： Takashi HATTORI ,  Takahiro KIZU ,  Toshiya OKAMOTO ,  Yuichi NISHIKAWA ,  Yoshiaki YAMASHITA

IPC: H02K9/22 ,  H02K3/50 ,  H02K3/12 ,  H02K11/33 ,  B62D5/04 ,  H02K5/22

Abstract: A motor includes a rotor including a shaft that extends axially, a stator that surrounds the radial outer side of the rotor and includes coils defined by windings of coil wires, a holder with through-holes that is axially above the stator for insertion of the coil wires therethrough and extends axially, and a substrate that is axially above the holder and includes an electronic component mounted thereon. Only some of the coil wires with the same phase are inserted into each of the through-holes, and the through-holes are separate holes provided to different phases of the coil wires.

公开(公告)号：US20190280566A1

公开(公告)日：2019-09-12

申请号：US16347602

申请日：2017-03-30

Applicant: Nidec Corporation

Inventor： Takashi HATTORI ,  Takahiro KIZU ,  Toshiya OKAMOTO ,  Yuichi NISHIKAWA ,  Yoshiaki YAMASHITA

IPC: H02K9/22 ,  H02K3/38 ,  H02K3/50 ,  H02K5/16 ,  H02K5/22 ,  H02K7/08 ,  H02K11/33 ,  B62D5/04

Abstract: A motor includes a heat sink including an inner region, and an outer region located radially outward from the inner region. An axial thickness of the inner region is larger than an axial thickness of the outer region, the bottom surface of the outer region is located axially above the bottom surface of the inner region, and the inner region and the electronic component at least partially overlap in an axial direction. A bus bar holder is located axially below the outer region and overlaps the inner region in a radial direction.

公开(公告)号：US20190267862A1

公开(公告)日：2019-08-29

申请号：US16319553

申请日：2017-03-30

Applicant: Nidec Corporation

Inventor： Takashi HATTORI ,  Takahiro KIZU ,  Toshiya OKAMOTO ,  Yuichi NISHIKAWA ,  Yoshiaki YAMASHITA ,  Mitsuo KODAMA ,  Yuya SAITO ,  Shingo FUKUMOTO ,  Chiharu KOBAYASHI

IPC: H02K3/50 ,  H02K9/22 ,  H02K11/33

Abstract: A motor includes a rotor including a shaft extending axially, a stator surrounding a radial outside of the rotor and including a coil defined by a wound coil wire, a holder disposed on an axially upper side of the stator, the coil wire being inserted into the holder, the holder including through-holes extending axially, and a circuit board disposed on the axially upper side of the holder, an electronic component being mounted on the circuit board. When the holder is viewed from the axially upper side, the through-holes are located in a region where a center angle (α) centered on the shaft is less than or equal to 180 degrees.