US 12,451,747 B2
Insulator, electric motor, and applied equipment
Tomoyuki Hatakeyama, Saitama (JP); Ikuo Ozaki, Shiga (JP); and Satoshi Wada, Shiga (JP)
Assigned to PANASONIC HOLDINGS CORPORATION, Osaka (JP); and PANASONIC CORPORATION, Osaka (JP)
Appl. No. 18/259,379
Filed by PANASONIC HOLDINGS CORPORATION, Kadoma (JP); and PANASONIC APPLIANCES REFRIGERATION DEVICES SINGAPORE, Singapore (SG)
PCT Filed Dec. 15, 2021, PCT No. PCT/JP2021/046360
§ 371(c)(1), (2) Date Jun. 26, 2023,
PCT Pub. No. WO2022/145246, PCT Pub. Date Jul. 7, 2022.
Claims priority of application No. 2020-219449 (JP), filed on Dec. 28, 2020.
Prior Publication US 2024/0063675 A1, Feb. 22, 2024
Int. Cl. H02K 3/46 (2006.01); H02K 3/34 (2006.01)
CPC H02K 3/46 (2013.01) [H02K 3/34 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An insulator comprising:
an annular outer peripheral portion; and
a wound portion which extends in a first direction that is a direction from the outer peripheral portion toward a center of the outer peripheral portion and around which a wire is wound, wherein
the wound portion includes
an introduction portion to which the wire is introduced from the outer peripheral portion,
an extend-around portion around which the wire introduced from the introduction portion extends, and
an isolation wall which is located between the introduction portion and the extend-around portion in the first direction and by which an introduced portion of the wire which is introduced at the introduction portion and a first-turn portion of the wire which is wound around the extend-around portion are isolated from each other.