公开(公告)号：US20200313479A1

公开(公告)日：2020-10-01

申请号：US16954638

申请日：2018-12-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Incheol HWANG ,  Dongbum LEE ,  Jonghyun CHOI

IPC: H02K1/27 ,  H02K21/14

Abstract: A BLDC motor server includes a stator configured in a hollow cylindrical shape and comprising a plurality of teeth around which a plurality of coils is wound to form an electromagnetic field, respectively; and a rotor configured in a cylindrical shape rotatable within the stator and comprising a plurality of permanent magnets, each having an arched section in which an outer circumference side is extended in both directions from a rotation center side, wherein the plurality of permanent magnets is disposed, so that facing outer surface portions of two permanent magnets neighboring each other are adjacent to each other, and wherein a width Wo of the outer circumference side of each permanent magnet is configured to be smaller than a width Wc of the rotation center side thereof. The BLDC motor may reduce a noise and a vibration as well as increasing an efficiency of the motor.

公开(公告)号：US20250132622A1

公开(公告)日：2025-04-24

申请号：US18828417

申请日：2024-09-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jonggun KIM ,  Incheol HWANG ,  Jungwoo PARK

IPC: H02K1/28 ,  F25B31/02 ,  H02K1/2791

Abstract: An outer rotor for a compressor is provided. The outer rotor includes a core formed in a hollow cylindrical shape, a plurality of permanent magnets disposed on an inner circumferential surface of the core, a roof disposed to cover one end of the core and including a bush hole formed at a center of the roof, and a bush disposed in the bush hole of the roof, wherein the core and the bush are made of a metal material, and the roof is made of a resin material, and wherein the roof includes at least one inner notch formed on an inner circumferential surface of the bush hole and at least one outer notch formed on an outer circumferential surface of the roof.

公开(公告)号：US20240426286A1

公开(公告)日：2024-12-26

申请号：US18750168

申请日：2024-06-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kihwan KIM ,  Minjin KIM ,  Kisun NAM ,  Hyunwoo RYU ,  Incheol HWANG

IPC: F04B35/04 ,  F04B53/22 ,  F25B31/02

Abstract: A reciprocating compressor is provided. The reciprocating compressor includes a bearing block, a fixed shaft extending vertically from a lower surface of the bearing block, formed in a cylindrical shape, and having a shaft hole formed therein, a stator disposed on the bearing block and including a coupling hole into which the fixed shaft is inserted, a holder disposed on an outer circumferential surface of the fixed shaft and configured to fix the stator to the bearing block, a rotating shaft inserted into the shaft hole of the fixed shaft, and a rotor disposed outside the stator and fixed to one end of the rotating shaft. The outer circumferential surface of the fixed shaft and the shaft hole may be formed concentrically.