US 11,837,932 B2
Stator, motor, and compressor
Yasuhiko Ohsawa, Osaka (JP); Yoshihiro Kataoka, Osaka (JP); Satoshi Tsukamoto, Osaka (JP); Yoshitomo Tsuka, Osaka (JP); and Ryouta Nakai, Osaka (JP)
Assigned to Daikin Industries, Ltd., Osaka (JP)
Filed by DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed on Jan. 23, 2023, as Appl. No. 18/100,405.
Application 18/100,405 is a continuation of application No. PCT/JP2021/018660, filed on May 17, 2021.
Claims priority of application No. 2020-127325 (JP), filed on Jul. 28, 2020.
Prior Publication US 2023/0155442 A1, May 18, 2023
Int. Cl. H02K 3/52 (2006.01); H02K 3/50 (2006.01); H02K 3/34 (2006.01); F25B 31/02 (2006.01)
CPC H02K 3/345 (2013.01) [F25B 31/026 (2013.01); H02K 3/50 (2013.01); H02K 3/52 (2013.01); H02K 3/522 (2013.01); H02K 2203/12 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A stator for a motor installed within in a hermetic container of a compressor, the stator comprising:
a stator core having a plurality of teeth;
an insulator mounted to an axial end surface of the stator core;
a plurality of coils with each coil wound around a corresponding one of the plurality of teeth of the stator core;
a first region in which a distal end of a feeder line extending from a first end of one of the coils is connected to a distal end of a feeder line extending from a first end of an other one of the coils; and
a second region in which distal ends of neutral lines extending from second ends of the coils are connected to each other,
the insulator having an inner wall and an outer wall spaced from each other in a radial direction of the stator core,
both the first region and the second region being partially disposed axially above the stator core between the inner wall and the outer wall of the insulator,
in a cross section at a gap between at least two adjacent coils of the plurality of coils, taken along a plane including an axis of the stator core, a center of gravity of the first region is positioned above a center of gravity of the second region in an axial direction of the stator core, and
B<A and C<A, where
a radial length of the first region is B,
a radial length of the second region is C, and
a radial length between the inner wall and the outer wall of the insulator is A.