公开(公告)号：US20240131940A1

公开(公告)日：2024-04-25

申请号：US17968979

申请日：2022-10-18

Applicant: GM Global Technology Operations LLC

Inventor： Peter Paul Andruskiewicz, IV ,  Chih-hung Yen ,  Satish P. Ketkar ,  SeungHwan Keum ,  Taeyoung Han ,  Vicente Domenech-Llopis ,  Orlando Saenz Fuentes

IPC: B60L53/302 ,  B60L53/16 ,  H05K7/20

CPC classification number: B60L53/302 ,  B60L53/16 ,  H05K7/20327 ,  H05K7/20409 ,  H05K7/20509

Abstract: A cooling system for an electric vehicle charge port includes a member having a base wall including an opening and a perimetrical wall extending from the base wall. The base wall and the perimetrical wall defining a volume. A heat spreader arranged in the volume. A terminal extends from the heat spreader through the opening in the base wall. An amount of phase change material (PCM) arranged in the volume, the amount of PCM is in contact with the terminal.

公开(公告)号：US20240025278A1

公开(公告)日：2024-01-25

申请号：US17872168

申请日：2022-07-25

Applicant: GM Global Technology Operations LLC

Inventor： Chih-hung Yen ,  Satish P. Ketkar ,  Peter Paul Andruskiewicz, IV ,  SeungHwan Keum ,  Taeyoung Han ,  Vicente Domenech-Llopis ,  Orlando Saenz Fuentes

IPC: B60L53/16 ,  B60L53/302

CPC classification number: B60L53/16 ,  B60L53/302 ,  H05K7/20936

Abstract: A charge port for an electric vehicle includes a first charging terminal, a second charging terminal spaced from the first charging terminal, and a phase change material (PCM) cartridge including a non-porous housing storing an amount of PCM. The non-porous housing is arranged in thermal contact with one of the first charging terminal and the second charging terminal.

公开(公告)号：US11722037B2

公开(公告)日：2023-08-08

申请号：US17315730

申请日：2021-05-10

Applicant: GM Global Technology Operations LLC

Inventor： SeungHwan Keum ,  Insu Chang ,  Jun-mo Kang ,  Young J. Kim

IPC: H02K9/19 ,  H02K3/28 ,  H02K5/20

CPC classification number: H02K9/19 ,  H02K3/28 ,  H02K5/203

Abstract: An interior permanent magnet motor having controllable coolant distribution is provided. The motor comprises a motor housing and a rotary shaft connected to a rotor rotatably disposed in the housing. The motor further comprises a stator unit disposed in the housing and comprising conductive windings arranged about the rotor. The windings have a straight portion radially extending to an end-turn portion. The motor further comprises an oil sump disposed on the housing above the stator unit. The oil sump comprises a reservoir having an inner side and an outer side. The reservoir has at least one aperture formed therethrough over the end-turn portion. The motor further comprises a movable nozzle having a first open end extending to a second open end. The first open end is connected to the at least one aperture such that the movable nozzle and reservoir are in fluid communication. The second open end extends from the at least one aperture and positioned adjacently above the end turn portion for coolant distribution. The motor further comprises a connector movably disposed in the housing proximate to the movable nozzle. The motor further comprises a cam connected to the connector and in contact with the nozzle. Upon movement of the connector, the cam is arranged with the connector to move the second open end of the nozzle over the end turn portion for distribution of coolant oil from the oil sump to the end turn portion.

公开(公告)号：US20230046826A1

公开(公告)日：2023-02-16

申请号：US17401452

申请日：2021-08-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： SeungHwan Keum ,  Mei Yang ,  Neal Parsons ,  Ruth Herrera Reed

IPC: H02K9/19 ,  H02K5/04 ,  H02K1/16 ,  H02K1/26 ,  H02K15/02

Abstract: Presented are oleophobic surface treatments for electric machines, methods for making/using such electric machines, and vehicles employing traction motors having oleophobic treatments on select “non-target” surfaces. An electric machine includes a direct-cooling thermal management system that circulates a coolant fluid to the electric machine's outer housing. A stator assembly, which is attached to the housing, includes a stator core with one or more electromagnetic windings mounted to the stator core. A rotor assembly is rotatably mounted to the hosing adjacent the stator assembly. The rotor assembly includes a rotor core with one or more magnets mounted to the rotor core and spaced across an air gap from the winding(s). Select components of the outer housing, rotor assembly, and/or stator assembly have a target surface with an oleophobic surface treatment that reduces the non-target surface's wetted area and decreases the mass of coolant fluid contacting the non-target surface.

公开(公告)号：US20230011641A1

公开(公告)日：2023-01-12

申请号：US17367853

申请日：2021-07-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： SeungHwan Keum ,  Mei Yang ,  Neal Parsons ,  Ruth Herrera Reed

IPC: H02K15/12 ,  H02K15/02

Abstract: Presented are oleophilic surface treatments for electric machines, methods for making/using such electric machines, and vehicles employing traction motors having stator windings with oleophilic treatments on select surfaces. An electric machine includes an outer housing with a direct-cooling thermal management system fluidly connected to the housing to circulate thereto a coolant fluid. A stator assembly, which is attached to the housing, includes a stator core with one or more electromagnetic windings mounted to the stator core. A rotor assembly is movably mounted to the hosing adjacent the stator assembly. The rotor assembly includes a rotor core with one or more magnets mounted to the rotor core spaced, e.g., across an air gap, from the winding(s). Select components of the stator assembly have a target surface with an oleophilic surface treatment that enlarges the target surface's wetted area and increases a coolant mass of the coolant fluid contacting the target surface.

公开(公告)号：US20230010156A1

公开(公告)日：2023-01-12

申请号：US17305639

申请日：2021-07-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： SeungHwan Keum ,  Jun-mo Kang ,  Insu Chang ,  Young J. Kim

IPC: H02K9/19 ,  B60L50/50 ,  B05B3/00

Abstract: In various embodiments, methods, systems, and vehicle apparatuses are provided. A system provides a gravity drive to distribute coolant oil flow including a nozzle for directing a flow of coolant oil over a surface of an electric motor wherein the flow of the coolant oil is caused by a gravity drive; a connector that is coupled to the nozzle that enables the nozzle to sway in response to external forces encountered by a vehicle operation and to distribute coolant oil over the exterior surface of the electric motor; and a counterweight that is coupled to the nozzle that provides a countermeasure to the external forces encountered by the vehicle operation to cause the nozzle to sway in a manner that enables the coolant oil distributed evenly across the exterior surface of the electric motor.