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1. 发明申请

US20230101634A1 STATOR ASSEMBLY, ELECTRICAL MOTOR, WIND POWER GENERATOR SET AND METHOD FOR COOLING STATOR ASSEMBLY 有权
公开(公告)号：US20230101634A1
公开(公告)日：2023-03-30
申请号：US18075861
申请日：2022-12-06
申请人： BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT CO., LTD.
发明人： Shengjun MA
IPC分类号： H02K1/20 , H02K1/18 , H02K9/10 , H02K9/22
摘要： A stator assembly, an electrical motor having the stator assembly, a wind power generator set and a method for cooling a stator assembly are provided. The stator assembly includes a stator support and a stator core mounted on the stator support, wherein the stator support includes a support enclosure plate, a first axial air flow channel is fonned between the support enclosure plate of the stator support and a radial side surface of the stator core, and the first axial air flow channel is used for receiving a first cold air flow, so that the cold air flow can flow in the axial direction. The stator assembly can introduce a cold air flow from the other side, opposite an air gap, of a stator during the operation of an electrical motor, so that two radial sides of the stator can be cooled at the same time.

2. 发明申请

US20220399767A1 GENERATOR, WIND TURBINE AND METHOD FOR COOLING A DIRECT DRIVE GENERATOR OF A WIND TURBINE 有权
公开(公告)号：US20220399767A1
公开(公告)日：2022-12-15
申请号：US17830451
申请日：2022-06-02
申请人： Siemens Gamesa Renewable Energy A/S
发明人： Stefano Bove , Jens Bomholt Jensen , Anders Vangsgaard Nielsen
IPC分类号： H02K1/20 , H02K9/10
摘要： A generator for a wind turbine has a rotor and a stator separated radially by an air gap, wherein the stator includes at least one stator segment, which includes a stack of lamination sheets and at least one stator winding, and a stator support structure supporting the at least one stator segment, wherein the generator further includes a cooling arrangement for providing cooling fluid at least to the air gap, wherein the cooling arrangement further includes a cooling fluid flow dividing element for dividing an incoming cooling fluid flow to the stator into a first partial cooling fluid flow directed to the air gap and a second partial cooling fluid flow directed to the stator support structure.

3. 发明申请

US20220393551A1 COOLING DEVICE FOR ROTARY ELECTRIC MACHINE 有权
公开(公告)号：US20220393551A1
公开(公告)日：2022-12-08
申请号：US17888459
申请日：2022-08-15
申请人： LC Advanced Motor Technology Corporation
发明人： Dylan BROOMFIELD , Russel Hugh MARVIN , Matthew HONICKMAN
IPC分类号： H02K9/19 , H02K1/16 , H02K9/10 , H02K3/12 , H02K3/48
摘要： A rotary electric machine includes a stator extending along an axis and having teeth arranged about the axis. The teeth are circumferentially spaced apart by slots. Conductors extend around the teeth and through the slots. The conductors are electrically connected to one another to form phases. A cooling device is provided in at least one winding slot. The cooling device includes an outer tube and an inner tube provided in the outer tube such that cooling fluid flows in a first axial direction within the inner tube and a second axial direction opposite the first axial direction within the outer tube.

4. 发明授权

US11355998B2 Method and equipment for cooling generators 有权
公开(公告)号：US11355998B2
公开(公告)日：2022-06-07
申请号：US17299066
申请日：2019-11-04
申请人： SVOBATECH AG
发明人： Thomas Bauer , Matthias Svoboda
IPC分类号： H02K9/10 , H02K9/24 , G01M3/28
摘要： According to the method, either CO2-free air or pure nitrogen N2 is pumped into the cooling circuit selectively depending on system parameters. To this end, the method ensures that the air injection rate is high enough that, under normal conditions, the hydrogen concentration in the tank and in the riser remains below 2% H2. On air injection, the oxygen O2 (>2 ppm) in the cooling water reacts with the copper in the cooling ducts and a layer of copper oxide forms on the inner walls of said ducts. No reaction is triggered by the injection of nitrogen N2. The CO2 content in the injection air and, at the same time, also the H2 content in the exhaust air are continuously measured and monitored, and an alarm is triggered if adjustable limit values are exceeded. The equipment for performing the method comprises an electronic control unit (65) with an input field and display as a control box, and a pump and a pipe circuit for drawing air in from the riser. The control unit (65) can evaluate all the measured data from the sensors and analysers connected to the pipe and can at least check the CO2 content in the supply air and the H2 content in the riser (13) and display the hydrogen leakage.

5. 发明申请

US20210199356A1 COOLING FAN FOR REFRIGERANT COOLED MOTOR 有权
公开(公告)号：US20210199356A1
公开(公告)日：2021-07-01
申请号：US17200083
申请日：2021-03-12
申请人： TRANE INTERNATIONAL INC.
发明人： Joseph M. HEGER
IPC分类号： F25B31/00 , H02K9/19 , H02K9/10 , H02K9/20
摘要： An electric motor for a vapor compression system is disclosed. The electric motor is provided with a working fluid. The electric motor includes a housing forming cavity therein. The housing includes a rotor, a stator, and a shaft. The rotor is secured to the shaft and the stator surrounds at least a portion of the rotor. An airgap is formed between the rotor and the stator. An inlet of the housing receives the working fluid and is in fluid communication with the airgap. An outlet of the housing is in fluid communication with the airgap and receives the working fluid from the airgap. The electric motor further includes an impeller that induces flow of the working fluid between the inlet and the outlet.

6. 发明授权

US11025108B2 Electrical machines with liquid cooling 有权
公开(公告)号：US11025108B2
公开(公告)日：2021-06-01
申请号：US16408051
申请日：2019-05-09
申请人： Hamilton Sundstrand Corporation
发明人： Thomas M. Yun , Jagadeesh Kumar Tangudu
IPC分类号： H02K1/20 , H02K5/20 , H02K9/10 , H02K9/16 , H02K9/14 , H02K9/00 , H02K5/00 , H02K9/12
摘要： A stator includes a core and a coolant jacket. The core has an outer surface extending about a rotation axis and defining one or more surface discontinuity within the outer surface. The coolant jacket is deposited on the outer surface of the core and has two or more layers conformally disposed on the outer surface of the core, the coolant jacket inhabiting the one or more surface discontinuity. Electrical machines, motor-type electrical machines, and methods of making stators are also described.

7. 发明申请

US20210143707A1 SUPERCRITICAL CO2 COOLED ELECTRICAL MACHINE 有权
公开(公告)号：US20210143707A1
公开(公告)日：2021-05-13
申请号：US17256732
申请日：2019-07-05
申请人： Siemens Energy, Inc.
发明人： Raul Ricardo Rico , Christopher Lowry , Patrick King Wah May
IPC分类号： H02K9/10 , H02K7/18 , F01K25/10
摘要： Systems and methods are provided to cool a heat producing component in an electrical machine system. The electrical machine includes a supercritical carbon dioxide (SCO2) wherein the SCO2 is a working medium of a heat exchanger that is arranged in the electrical machine system to cool a fluid that cools the heat producing component and/or wherein the SCO2 directly cools at the heat producing component.

8. 发明授权

US11005341B2 Sealing structure for peripheral area of generator fan 有权
公开(公告)号：US11005341B2
公开(公告)日：2021-05-11
申请号：US16412665
申请日：2019-05-15
申请人： DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.
发明人： Sung Ha Kim
IPC分类号： H02K9/10 , F04D29/08
摘要： Provided is a sealing structure for sealing a peripheral area of a fan of a generator. The sealing structure includes a rotor, a fan assembly including a ring-shaped fan body coupled to an axial end of the rotor, multiple fan blades radially arranged along a circumferential surface of the fan body, and an annulus groove recessed, in an axial direction of the rotor, from an axial outer end surface of the fan body, a stator surrounding the rotor with an air gap provided between the stator and the rotor, a cooler positioned a predetermined distance apart from the stator, and a cooling gas duct including an outlet connected with the cooler and an inlet configured to cover the axial outer end surface of the fan body and an axial end of the air gap between the stator and the rotor, wherein an inlet-side end of the cooling gas duct includes a first member and a second member that are coaxially arranged and are positioned close to the axial outer end surface of the fan body and the axial end of the air gap, respectively, and an inlet-side end of the first member is inserted into the groove with a clearance, and a sealing device is provided on the inlet-side end of the first member.

9. 发明授权

US10971973B2 Energy conversion apparatus 有权
公开(公告)号：US10971973B2
公开(公告)日：2021-04-06
申请号：US15399399
申请日：2017-01-05
申请人： ROLLS-ROYCE PLC
发明人： Kalyani G Menon , Richard Harwood
IPC分类号： H02K9/19 , H02K9/20 , H02K11/33 , F01D15/10 , H02K5/18 , H02K5/20 , H02K9/10
摘要： Energy conversion apparatus comprising: an electrical machine including a rotor arranged to rotate about an axis, the rotor defining a first cavity therein; power electronic circuitry arranged at least partially around the axis and defining a second cavity therein, the power electronic circuitry being positioned adjacent to the electrical machine; a heat pipe positioned within the first cavity of the rotor and within the second cavity defined by the power electronic circuitry, the heat pipe being arranged to receive thermal energy from the rotor; and a cooling arrangement positioned at least partially within the second cavity and arranged to receive thermal energy from the power electronic circuitry and from the heat pipe.

10. 发明申请

US20210021163A1 STATOR ASSEMBLY, ELECTRICAL MOTOR, WIND POWER GENERATOR SET AND METHOD FOR COOLING STATOR ASSEMBLY 有权
公开(公告)号：US20210021163A1
公开(公告)日：2021-01-21
申请号：US17043225
申请日：2019-09-03
申请人： BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT CO., LTD.
发明人： Shengjun MA
IPC分类号： H02K1/20 , H02K1/18 , H02K9/10 , H02K9/22
摘要： A stator assembly, an electrical motor having the stator assembly, a wind power generator set and a method for cooling a stator assembly are provided. The stator assembly includes a stator support and a stator core mounted on the stator support, wherein the stator support includes a support enclosure plate, a first axial air flow channel is formed between the support enclosure plate of the stator support and a radial side surface of the stator core, and the first axial air flow channel is used for receiving a first cold air flow, so that the cold air flow can flow in the axial direction. The stator assembly can introduce a cold air flow from the other side, opposite an air gap, of a stator during the operation of an electrical motor, so that two radial sides of the stator can be cooled at the same time.

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