公开(公告)号：US11606006B2

公开(公告)日：2023-03-14

申请号：US17346151

申请日：2021-06-11

Applicant: Hyundai Motor Company ,  Kia Corporation

Inventor： Byoung Hoon Choi ,  Sung Hyun Ahn ,  Hee Ra Lee ,  Jong Hyun Kim

IPC: H02K9/20 ,  H02K9/00 ,  H02P29/60

Abstract: A system for overcooling a drive motor and a method for controlling the same may include a first cooling loop in which a first coolant circulate, the first coolant being in a heat exchange with a power electronics (PE) part and a drive motor cooler mounted in the first cooling line and configured to cool cooling oil supplied to the drive motor fluidically connected to the drive motor cooler; a second cooling loop disposed independently from the first cooling loop, wherein a second coolant circulates in the second cooling loop, the second coolant being in a heat exchange with a battery module and a battery chiller mounted in the second cooling loop; and a switch unit configured to selectively shift a flow path of the second coolant such that the second coolant is in a heat exchange with the drive motor cooler.

公开(公告)号：US11563361B2

公开(公告)日：2023-01-24

申请号：US17584462

申请日：2022-01-26

Applicant: M-LINK CO., LTD.

Inventor： Manabu Shiraki ,  Shuichi Omomo

IPC: H02K3/47 ,  H02K9/20 ,  H02K11/25

Abstract: A coreless rotating electrical machine for being operated continuously comprises a stator including an energizable coreless cylindrical coil and a lid-type mount; and a rotor including a cup-type mount. The lid-type mount is equipped with a channel for supplying a refrigerant liquid to the air gap. The coreless rotating electrical machine is operated continuously by supplying the refrigerant liquid into the air gap, allowing the cylindrical coil, which generates heat, to vaporize the refrigerant liquid, cooling the cylindrical coil by latent heat of vaporization, and repeating an operation of supplying the refrigerant liquid to prevent a temperature of the cylindrical coil exceeding an allowable maximum temperature, and an operation of adjusting the supply of the refrigerant liquid to prevent the temperature of the cylindrical coil falling below a minimum temperature, so as to maintain the temperature in a range between the allowable maximum and minimum temperatures.

公开(公告)号：US20230015125A1

公开(公告)日：2023-01-19

申请号：US17810997

申请日：2022-07-06

Applicant: Honeywell International Inc.

Inventor： Benjamin Tang ,  Ami Bhavsar ,  Michael Leighty

IPC: H02K9/20

Abstract: An example system includes a housing configured to house a portion of an electric machine and a heat transfer material, the heat transfer material is configured to contact a conductor of the portion of the electric machine and to remove heat from the conductor and transfer heat to the housing. The system includes a coolant configured to remove heat from the housing. An inner surface of the housing comprises a plurality of structures configured to increase an inner surface area of the housing, wherein the plurality of structures are configured to contact the heat transfer material.

公开(公告)号：US11515757B2

公开(公告)日：2022-11-29

申请号：US16909989

申请日：2020-06-23

Applicant: Flux Drive LLC

Inventor： Philip Corbin, III ,  Richard Braun ,  Michael Troy Sparks

IPC: H02K9/19 ,  H02K49/10 ,  H02K49/06 ,  H02K9/20

Abstract: An improved liquid cooled apparatus for transferring large torques magnetically with a primary rotary member and a secondary rotary member as is set forth in U.S. Pat. No. 7,294,947. The primary rotary member has permanent magnets, the secondary rotary member with electro-conductive materials. Both of said rotors being encased in a liquid tight casing enclosure and said rotors both being liquid cooled to allow for power transfers in excess of 260 KW and 1000 ft.lb torque.

公开(公告)号：US20220368198A1

公开(公告)日：2022-11-17

申请号：US17742276

申请日：2022-05-11

Applicant: DRS Naval Power Systems, Inc.

Inventor： Calvin H. Corey, Ill ,  William R. Wink

IPC: H02K9/22 ,  H02K9/20

Abstract: The disclosed apparatus, system, and techniques described herein allow pole retention hardware of the electric motor to also function as a cooling manifold for removing heat generated by the electrical coils. A pole retainer apparatus can include a pole retainer for retaining a pole to a hub. The pole retainer can include a proximal end mounted on the hub and a distal end. The pole retainer can include a channel extending through the pole retainer from the proximal end of the pole retainer mounted on the hub to the distal end of the pole retainer. The apparatus can include a mount located at the distal end of the pole retainer and configured to retain the pole on the hub. The apparatus can include a fluid transfer duct connected to the mount. The cooling system can be employed on TORUS Axial Flux Permanent Magnet motors, and various other motor designs.

公开(公告)号：US11431228B2

公开(公告)日：2022-08-30

申请号：US17191677

申请日：2021-03-03

Applicant: MANDO CORPORATION

Inventor： Mohammad Islam ,  Christian Ross ,  Christopher William Lutz ,  Tomy Sebastian ,  Md Sariful Islam

IPC: H02K9/20 ,  H02K7/00 ,  H02K7/102 ,  H02K7/08 ,  H02K9/22 ,  H02K11/21 ,  B60K7/00 ,  B60B27/00 ,  G01B7/30 ,  G01D5/14 ,  H02K1/2706 ,  H02K11/00

Abstract: A vehicle wheel assembly comprises a wheel for mounting a tire thereon and having an inner space; and an in-wheel motor mounted in the inner space of the wheel and comprising: a rotor connected to the wheel and configured to rotatable relative to a stator, the stator configured to drive the rotor, an electronic device comprising a circuit board and electronics mounted on the circuit board and configured to control the in-wheel motor, two-phase dielectric material, and covers coupled with the stator to form a hermetic enclosure. The electronic device and the two-phase dielectric material are contained in the hermetic enclosure formed by the wall of the stator and the covers coupled with stator, and the two-phase dielectric material is in contact with the wall of the stator and the electronic device to cool the stator and the electronic device by transitioning between a liquid phase and a gaseous phase, conduction, and convection.

公开(公告)号：US20220149703A1

公开(公告)日：2022-05-12

申请号：US17584462

申请日：2022-01-26

Applicant: M-LINK CO., LTD.

Inventor： Manabu SHIRAKI ,  Shuichi OMOMO

IPC: H02K9/20 ,  H02K11/25 ,  H02K3/47

Abstract: A coreless rotating electrical machine for being operated continuously comprises a stator including an energizable coreless cylindrical coil and a lid-type mount; and a rotor including a cup-type mount. The lid-type mount is equipped with a channel for supplying a refrigerant liquid to the air gap. The coreless rotating electrical machine is operated continuously by supplying the refrigerant liquid into the air gap, allowing the cylindrical coil, which generates heat, to vaporize the refrigerant liquid, cooling the cylindrical coil by latent heat of vaporization, and repeating an operation of supplying the refrigerant liquid to prevent a temperature of the cylindrical coil exceeding an allowable maximum temperature, and an operation of adjusting the supply of the refrigerant liquid to prevent the temperature of the cylindrical coil falling below a minimum temperature, so as to maintain the temperature in a range between the allowable maximum and minimum temperatures.

公开(公告)号：US11273925B1

公开(公告)日：2022-03-15

申请号：US17070006

申请日：2020-10-14

Applicant: Rolls-Royce North American Technologies Inc.

Inventor： Paul O'Meallie ,  Daniel G. Edwards ,  Douglas J. Snyder

IPC: F28D15/02 ,  F28D15/06 ,  B64D33/08 ,  F02C6/20 ,  F02C7/12 ,  H02K9/20 ,  H02K9/26 ,  H02K11/25 ,  H02K11/33 ,  B64D27/24 ,  B64D27/02

Abstract: A method for cooling a hybrid electric aircraft propulsion system comprises transporting a coolant through a two-phase pumped loop (TPPL) in thermal contact with an electrical machine and a plurality of power modules to be cooled, where the TPPL includes: a parallel arrangement of cold plates; an evaporator; a condenser; a first control valve; a liquid receiver; and a pump. A sensor positioned upstream of the cold plates, and in some cases upstream of the liquid receiver, measures pressure and/or temperature of a return stream of the coolant and transmits measurement data to a first controller electrically connected to the first control valve. The first controller regulates flow of a first liquid stream through the first control valve based on the pressure and/or temperature measured by the sensor, thereby keeping the return stream at a temperature within a predetermined temperature range.

公开(公告)号：US11264885B2

公开(公告)日：2022-03-01

申请号：US16333485

申请日：2017-07-20

Applicant: Siemens Aktiengesellschaft

Inventor： Michael Frank ,  Peter van Haßelt ,  Johannes Richter ,  Christian Weidermann

IPC: H02K55/04 ,  H02K9/20 ,  H02K11/028 ,  H02K9/197 ,  H02K1/30 ,  H02K3/47

Abstract: Various embodiments include a rotor for an electric machine comprising: an electric coil arrangement; and a winding carrier mechanically carrying the coil arrangement and at least partially enclosing the coil arrangement on a radially outer side of the coil arrangement. The rotor includes an inner cavity for circulating a fluid coolant such that the coil arrangement comes into contact with the liquid coolant on its radially inner side as the rotor rotates.

公开(公告)号：US11081937B2

公开(公告)日：2021-08-03

申请号：US16048656

申请日：2018-07-30

Applicant: CHICONY POWER TECHNOLOGY CO., LTD.

Inventor： Wang-Hsuang Huang ,  Chen-Shi Chou

IPC: H02K9/20 ,  H02K5/20 ,  H02K11/33 ,  H02K9/06 ,  H02K5/24

Abstract: An integrated motor drive includes a frame assembly, a motor, a motor driver and a heat dissipation assembly. The frame assembly includes a first frame and a second frame. The motor is installed on the first frame. The motor driver is installed on the second frame. The heat dissipation assembly includes a motor heat exchange pipe, a motor driver heat exchange pipe, and a heat dissipation pipe. The motor heat exchange pipe is embedded in the first frame, and located at one side portion of the motor for performing heat exchange with the motor. The motor driver heat exchange pipe is embedded in the second frame for performing heat exchange with the motor driver. The heat dissipation pipe is located at an end portion of the motor, and communicated with the motor heat exchange pipe and the motor driver heat exchange pipe.