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1. 发明申请

US20080100159A1 APPARATUS FOR COOLING STATOR LAMINATION STACKS OF ELECTIRCAL MACHINES 有权
标题翻译：用于冷却选择机器的定子分层的装置
公开(公告)号：US20080100159A1
公开(公告)日：2008-05-01
申请号：US11553028
申请日：2006-10-26
申请人： Robert T. Dawsey , Constantin C. Stancu , Eric R. Ostrom , Young Doo
发明人： Robert T. Dawsey , Constantin C. Stancu , Eric R. Ostrom , Young Doo
IPC分类号： H02K9/20 , H02K9/00
CPC分类号： H02K1/20 , B60L1/003 , B60L3/0061 , B60L2220/46 , B60L2220/50 , B60L2240/425 , H02K5/20 , H02K9/10 , H02K9/19 , Y02T10/641 , Y02T10/642
摘要： A coaxial stack of laminations for a stator of an electrical machine uses laminations that are substantially identical and in direct abutment with one another. Each of the laminations has an outer periphery and an inner periphery with the outer periphery being defined by an array of outwardly projecting pins and the inner periphery being defined by an array of inwardly projecting teeth. The outwardly projecting pins cooperate with a jacket surrounding the stack to provide a cooling space through which cooling liquid flows while the teeth provide spaces therebetween for receiving for receiving stator windings. The number of pins (npin) is proportional to the number of teeth (nth) according to the relationship (2K+1)/(2Kth) times the number of teeth (nth), where K is a selected integer number and Kth is the number of teeth past which each lamination is rotated with respect to adjacent laminations so that spaces between the teeth of adjacent laminations are aligned.
摘要翻译：用于电机的定子的同轴叠层叠片使用基本上相同并且彼此直接邻接的叠片。每个叠片具有外周边和内周边，其外围由向外突出的销的阵列限定，并且内周由内向突出的齿阵列限定。向外突出的销与围绕堆叠的护套配合以提供冷却空间，冷却液通过该空间流动，同时齿在其间提供空间用于接收定子绕组。根据关系式（2K + 1）/（2K + 1）/（2K + 1）/（2K + 1）/（2K + 1）/ / SUB>）乘以齿数（第n ），其中K是选定的整数，并且K 是每个层压被转动的齿数，相邻的叠片，使相邻叠片的齿之间的空间对齐。

2. 发明申请

US20080179980A1 Permanent magnet machine rotor 有权
公开(公告)号：US20080179980A1
公开(公告)日：2008-07-31
申请号：US11668910
申请日：2007-01-30
申请人： ROBERT T. DAWSEY , Constantin C. Stancu , Eric R. Ostrom , Young Doo
发明人： ROBERT T. DAWSEY , Constantin C. Stancu , Eric R. Ostrom , Young Doo
IPC分类号： H02K1/27
CPC分类号： H02K1/2766
摘要： A rotor for an interior permanent magnet machine has a rotor body having an output shaft and a first cavity filled with magnetic material. Second cavities are disposed inboard of the first cavities and are not filled with magnetic material. Non-magnetic rods extend through the second cavities and protrude beyond end faces of the rotor body. The rods are press-fit in blind bores formed in non-magnetic end plates disposed adjacent the end faces of the rotor body. Shrink disks are shrunk around projecting ends of the output shaft in abutting relation with the end plates. In order to prevent induced voltage from generating current in the cage formed by the rods and end plates, an oxide layer is disposed between the rods and blind bores in the end plates.

3. 发明授权

US07633194B2 Apparatus for cooling stator lamination stacks of electrical machines 有权
标题翻译：用于冷却电机定子叠片的装置
公开(公告)号：US07633194B2
公开(公告)日：2009-12-15
申请号：US11553028
申请日：2006-10-26
申请人： Robert T Dawsey , Constantin C. Stancu , Eric R. Ostrom , Young Doo
发明人： Robert T Dawsey , Constantin C. Stancu , Eric R. Ostrom , Young Doo
IPC分类号： H02K9/08
CPC分类号： H02K1/20 , B60L1/003 , B60L3/0061 , B60L2220/46 , B60L2220/50 , B60L2240/425 , H02K5/20 , H02K9/10 , H02K9/19 , Y02T10/641 , Y02T10/642
摘要： A coaxial stack of laminations for a stator of an electrical machine uses laminations that are substantially identical and in direct abutment with one another. Each of the laminations has an outer periphery and an inner periphery with the outer periphery being defined by an array of outwardly projecting pins and the inner periphery being defined by an array of inwardly projecting teeth. The outwardly projecting pins cooperate with a jacket surrounding the stack to provide a cooling space through which cooling liquid flows while the teeth provide spaces therebetween for receiving for receiving stator windings. The number of pins (npin) is proportional to the number of teeth (nth) according to the relationship (2K+1)/(2Kth) times the number of teeth (nth), where K is a selected integer number and Kth is the number of teeth past which each lamination is rotated with respect to adjacent laminations so that spaces between the teeth of adjacent laminations are aligned.
摘要翻译：用于电机的定子的同轴叠层叠片使用基本上相同并且彼此直接邻接的叠片。每个叠片具有外周边和内周边，其外围由向外突出的销的阵列限定，并且内周由内向突出的齿阵列限定。向外突出的销与围绕堆叠的护套配合以提供冷却空间，冷却液通过该空间流动，同时齿在其间提供空间用于接收定子绕组。根据与齿数（nth）的关系（2K + 1）/（2Kth）乘以（n）的关系（n），针数（npin）与齿数（nth）成比例，其中K是选定的整数，Kth是每个层叠相对于相邻叠片旋转的齿数，使得相邻叠片的齿之间的空间对准。

4. 发明授权

US07479723B2 Permanent magnet machine rotor 有权
标题翻译：永磁机转子
公开(公告)号：US07479723B2
公开(公告)日：2009-01-20
申请号：US11668910
申请日：2007-01-30
申请人： Robert T Dawsey , Constantin C. Stancu , Eric R. Ostrom , Young Doo
发明人： Robert T Dawsey , Constantin C. Stancu , Eric R. Ostrom , Young Doo
IPC分类号： H02K1/27
CPC分类号： H02K1/2766
摘要： A rotor for an interior permanent magnet machine has a rotor body having an output shaft and a first cavity filled with magnetic material. Second cavities are disposed inboard of the first cavities and are not filled with magnetic material. Non-magnetic rods extend through the second cavities and protrude beyond end faces of the rotor body. The rods are press-fit in blind bores formed in non-magnetic end plates disposed adjacent the end faces of the rotor body. Shrink disks are shrunk around projecting ends of the output shaft in abutting relation with the end plates. In order to prevent induced voltage from generating current in the cage formed by the rods and end plates, an oxide layer is disposed between the rods and blind bores in the end plates.
摘要翻译：用于内部永磁体机器的转子具有转子体，其具有输出轴和填充有磁性材料的第一腔体。第二空腔设置在第一空腔的内侧，并且不填充磁性材料。非磁性棒延伸穿过第二腔并突出超过转子体的端面。杆被压配合在形成在邻近转子体的端面设置的非磁性端板中的盲孔中。收缩盘在输出轴的突出端处与端板邻接而收缩。为了防止感应电压在由杆和端板形成的保持架中产生电流，在端板中的棒和盲孔之间设置氧化物层。

5. 发明申请

US20080100167A1 Permanent magnet machine rotor 审中-公开
标题翻译：永磁机转子
公开(公告)号：US20080100167A1
公开(公告)日：2008-05-01
申请号：US11552713
申请日：2006-10-25
申请人： Robert T. Dawsey , Constantin C. Stancu , Eric R. Ostrom , Young Doo
发明人： Robert T. Dawsey , Constantin C. Stancu , Eric R. Ostrom , Young Doo
IPC分类号： H02K21/14
CPC分类号： H02K1/20 , H02K9/19
摘要： A rotor for an interior permanent magnet machine has a rotor body having an output shaft and a first cavity filled with magnetic material. Second cavities are disposed inboard of the first cavities and are not filled with magnetic material. Non-magnetic rods extend through the second cavities and protrude beyond end faces of the rotor body. The rods are press-fit in blind bores formed in non-magnetic end plates disposed adjacent the end faces of the rotor body. Shrink disks are shrunk around projecting ends of the output shaft in abutting relation with the end plates. In order to prevent induced voltage from generating current in the cage formed by the rods and end plates, an oxide layer is disposed between the rods and blind bores in the end plates.
摘要翻译：用于内部永磁体机器的转子具有转子体，其具有输出轴和填充有磁性材料的第一腔体。第二空腔设置在第一空腔的内侧，并且不填充磁性材料。非磁性棒延伸穿过第二腔并突出超过转子体的端面。杆被压配合在形成在邻近转子体的端面设置的非磁性端板中的盲孔中。收缩盘在输出轴的突出端处与端板邻接而收缩。为了防止感应电压在由杆和端板形成的保持架中产生电流，在端板中的棒和盲孔之间设置氧化物层。

6. 发明授权

US07061134B2 Method and system for improved thermal management of a voltage source inverter operating at low output frequency utilizing a zero vector modulation technique 有权
标题翻译：利用零向量调制技术改进以低输出频率工作的电压源逆变器的热管理方法和系统
公开(公告)号：US07061134B2
公开(公告)日：2006-06-13
申请号：US10632257
申请日：2003-08-01
申请人： Silva Hiti , Constantin C. Stancu , Khwaja Rahman , Scott D. Downer , James M. Nagashima , Eric R. Ostrom
发明人： Silva Hiti , Constantin C. Stancu , Khwaja Rahman , Scott D. Downer , James M. Nagashima , Eric R. Ostrom
IPC分类号： H02P9/04 , H02P5/34
CPC分类号： H02P27/12 , H02M7/5387 , H02M2001/0054 , H02M2007/53876 , Y02B70/1491
摘要： The present invention includes a method for thermal management in a voltage source inverter. The method includes sensing a low output frequency condition, determining a zero vector modulation responsive to the sensed low output frequency condition, and applying the determined zero vector modulation to reduce thermal stress in the voltage source inverter. The step of determining the zero vector modulation responsive to the sensed low output frequency condition includes mapping an output voltage requirement to a space vector structure and determining state switching space vectors based on the mapped output voltage requirement. The step of determining the state switching space vector includes determining active state switching space vectors associated with the state switching space vectors, determining duty cycles for the active state switching space vectors based on the active state switching space vectors, and determining a duty cycle for at least one zero state switching space vector based on the determined duty cycles of the active state switching space vectors and a switching period.
摘要翻译：本发明包括电压源逆变器中的热管理方法。该方法包括感测低输出频率条件，响应于感测的低输出频率条件确定零矢量调制，以及应用所确定的零矢量调制以减小电压源逆变器中的热应力。响应于感测的低输出频率条件来确定零矢量调制的步骤包括将输出电压需求映射到空间矢量结构，并且基于映射的输出电压要求来确定状态切换空间矢量。确定状态切换空间矢量的步骤包括确定与状态切换空间矢量相关联的活动状态切换空间矢量，基于活动状态切换空间矢量确定活动状态切换空间矢量的占空比，以及确定在基于确定的活动状态切换空间矢量的占空比和切换周期的至少一个零状态切换空间矢量。

7. 发明授权

US07481072B2 Arrangements for and methods of phase change cooling of power electronics 有权
标题翻译：电力电子设备相变冷却的安排和方法
公开(公告)号：US07481072B2
公开(公告)日：2009-01-27
申请号：US11374677
申请日：2006-03-14
申请人： Eric R. Ostrom , Karl D. Conroy , George John , Gregory S. Smith
发明人： Eric R. Ostrom , Karl D. Conroy , George John , Gregory S. Smith
IPC分类号： B60H1/32
CPC分类号： F28D15/00 , B60K6/26 , B60K2001/003 , F28D15/0266 , H02K9/19 , H02K11/33 , H05K7/20936
摘要： Power electronics for electric traction motors used to drive automotive vehicles are cooled in a closed system by spraying a dielectric liquid coolant directly onto inverter circuitry. The liquid coolant changes phase and vaporizes as it absorbs heat from power transistors in inverter circuitry comprising the power electronics. The resultant vapor is condensed back to a liquid in a heat exchange arrangement having pipes carrying a second coolant from a radiator used to cool an engine or fuel cell stack in the automotive vehicle. Overspray coolant, which remains liquid, can also be cooled by the heat exchange arrangement. By utilizing the latent heat of evaporation of the dielectric coolant and increasing the rate recycling of the coolant as power output increases, temperature increases in the power electronics are controlled.
摘要翻译：用于驱动汽车的电动牵引电动机的电力电子装置通过将介电液体冷却剂直接喷射到逆变器电路上而在封闭的系统中被冷却。液体冷却剂改变相位并在从包括电力电子器件的逆变器电路中的功率晶体管吸收热量时蒸发。所得到的蒸汽在具有从用于冷却机动车辆中的发动机或燃料电池堆的散热器的带有第二冷却剂的管道的热交换装置中冷凝回到液体中。仍然是液体的溢流冷却剂也可以通过热交换装置来冷却。通过利用电介质冷却剂的蒸发潜热并且随着功率输出的增加而增加冷却剂的再循环率，控制电力电子设备中的温度升高。

8. 发明授权

US07723874B2 Cooling systems and methods for integration electric motor-inverters 有权
标题翻译：集成电动机逆变器的冷却系统和方法
公开(公告)号：US07723874B2
公开(公告)日：2010-05-25
申请号：US12032359
申请日：2008-02-15
申请人： George R. Woody , Karl D. Conroy , James M. Nagashima , David F. Nelson , Eric R. Ostrom , Gregory S. Smith
发明人： George R. Woody , Karl D. Conroy , James M. Nagashima , David F. Nelson , Eric R. Ostrom , Gregory S. Smith
IPC分类号： H02K9/00
CPC分类号： H02K9/20
摘要： Cooling systems and methods are provided for an integrated electric motor-inverter, where the integrated electric motor-inverter includes a housing, a motor, and an inverter, the motor and the inverter are disposed within the housing, and the motor includes a stator. The system includes a cooling jacket, a first coolant, a condenser, a spray head, and a second coolant. The cooling jacket is disposed concentric to the stator and includes an inner wall and an outer wall. The inner wall is in direct contact with the stator. The first coolant is disposed between the cooling jacket inner and outer walls. The condenser is disposed concentric to the cooling jacket. The spray head is disposed adjacent the inverter. The second coolant is in flow communication with the spray head.
摘要翻译：为集成电动机 - 逆变器提供冷却系统和方法，其中集成电动机 - 逆变器包括壳体，电动机和逆变器，电动机和逆变器设置在壳体内，并且电动机包括定子。该系统包括冷却套，第一冷却剂，冷凝器，喷头和第二冷却剂。冷却套与所述定子同心地设置，并且包括内壁和外壁。内壁与定子直接接触。第一冷却剂设置在冷却套内壁和外壁之间。冷凝器与冷却套筒同心设置。喷头靠近逆变器设置。第二冷却剂与喷头流体连通。

9. 发明授权

US07210304B2 Cooling arrangements for integrated electric motor-inverters 有权
标题翻译：集成电动机 - 逆变器的冷却装置
公开(公告)号：US07210304B2
公开(公告)日：2007-05-01
申请号：US11054483
申请日：2005-02-09
申请人： James M. Nagashima , Karl D. Conroy , Eric R. Ostrom , Gregory S. Smith , George John , David Tang , Terence G. Ward
发明人： James M. Nagashima , Karl D. Conroy , Eric R. Ostrom , Gregory S. Smith , George John , David Tang , Terence G. Ward
IPC分类号： F23D23/12
CPC分类号： F28D15/00 , B60K6/26 , B60K2001/003 , F28D15/0266 , H02K9/19 , H02K11/33 , H05K7/20936
摘要： In order to provide a modular arrangement, an inverter for an electric traction motor used to drive an automotive vehicle is positioned in proximity with the traction motor. The inverter is located within a compartment adjacent to one end of the electric traction motor and is cooled in a closed system by spraying a liquid coolant directly onto the inverter. The liquid coolant absorbs heat from the inverter and is cooled by a heat exchange arrangement comprising a reservoir with pipes carrying a second coolant from the radiator of the automotive vehicle. In a preferred embodiment, the coolant is collected from the inverter in an annular reservoir that is integral with the compartment containing the inverter. In accordance with one embodiment of the cooling arrangement, heat from the inverter vaporizes the liquid coolant by absorbing heat from the inverter during a phase change from a liquid to a vapor. The vaporized coolant is condensed by a circulating second coolant in pipes connected to the vehicle's radiator through a condenser that is preferably coaxial with the motor and the annular reservoir, which annular reservoir in the second embodiment collects overspray liquid coolant. In order to avoid degrading the inverter, the coolant is a dielectric fluid.
摘要翻译：为了提供模块化布置，用于驱动机动车辆的电动牵引电动机的逆变器位于牵引电动机附近。逆变器位于与电力牵引电动机的一端相邻的隔室内，并通过将液体冷却剂直接喷射到逆变器上而在封闭系统中冷却。液体冷却剂从逆变器吸收热量，并且通过热交换装置来冷却，所述热交换装置包括具有从机动车辆的散热器承载第二冷却剂的管道的储存器。在优选实施例中，冷却剂从与逆变器的隔室成一整体的环形容器中从逆变器收集。根据冷却装置的一个实施例，来自逆变器的热量在从液体到蒸汽的相变期间通过吸收来自逆变器的热量来蒸发液体冷却剂。蒸发的冷却剂通过连接到车辆散热器的管道中的循环第二冷却剂冷凝，该冷凝器优选地与电动机和环形储存器同轴，该第二实施例中的环形储存器收集过量喷射的液体冷却剂。为了避免降低变频器，冷却剂是介质流体。

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