SYNCHRONOUS ELECTRIC MOTOR

WIPO Patent Application WO/2020/235611

A1

This synchronous electric motor is provided with a stator (12) comprising: a cylindrical core back (1); a plurality of teeth (2) protruding radially from the core back (1) and arranged side by side circumferentially; a slot cell (3) covering the teeth (2); winding portions (4) formed by winding wires on the teeth (2) with the slot cell (3) therebetween; and a mold portion (7) formed by filling a resin between adjacent teeth (2). The teeth (2) each include an extension portion (22) extending radially from the core back (1), and an enlarged portion (21) extending circumferentially from the tip of the extension portion (22). The slot cell (3) includes a first cell portion (31) covering a surface of the core back (1) facing radially inward and an outer peripheral surface of the extension portion (22), and a second cell portion (32) covering a surface of the enlarged portion (21) facing radially outward. A circumferential end of the second cell portion (32) coincides with a circumferential end of the enlarged portion (21), or covers at least a part of the opposing surfaces of the enlarged portions (21) of the adjacent teeth (2). The mold portion (7) forms a gap between the enlarged portions (21) of at least one adjacent teeth (2).

TAKAHASHI YUTA (JP)
KAWASAKI RYO (JP)
ITO HIDENOBU (JP)
SATO NAOYA (JP)
NAKAMURA YUICHIRO (JP)
KANAI HIROAKI (JP)
MURAKAMI TAKAHIKO (JP)
KOBAYASHI HIROKI (JP)

PCT/JP2020/020012

November 26, 2020

May 20, 2020

Click for automatic bibliography generation  

MITSUBISHI ELECTRIC CORP (JP)

H02K1/16; H02K1/18; H02K3/18; H02K21/16

JP2008022646A	2008-01-31
JP2012223068A	2012-11-12
JP2001128393A	2001-05-11

TAKAMURA, Jun (JP)

View/Download PDF      PDF Help

Previous Patent: LIGHT-ABSORBING COMPOSITION, LIGHT-ABSORBING FILM, AND OPTICAL FILTER

Next Patent: REFLECTIVE MASK BLANK FOR EUV LITHOGRAPHY