公开(公告)号：US10543742B2

公开(公告)日：2020-01-28

申请号：US16343449

申请日：2016-11-16

Applicant: NTN CORPORATION

Inventor： Shiro Tamura ,  Minoru Suzuki ,  Shinya Taikou

IPC: B60K7/00 ,  B60K17/04 ,  F16H1/06 ,  H02K7/08 ,  H02K7/116 ,  H02K21/12 ,  H02K7/00

Abstract: A large gear and a small gear are provided to an intermediate shaft of an in-wheel motor drive device, and a final output gear configured to mesh with the small gear of the intermediate shaft is provided to an output shaft. The output shaft is supported by bearings on in-board and out-board sides, respectively, and the large gear of the intermediate shaft is arranged between the bearing configured to support the output shaft on the in-board side and the final output gear of the output shaft. The bearing and the large gear are arranged so that, when viewed from the axial direction, a tooth top circle of the large gear of the intermediate shaft and a radially outer circle of the bearing configured to support the output shaft on the in-board side have an intersection point.

公开(公告)号：US09402336B2

公开(公告)日：2016-07-26

申请号：US14391095

申请日：2013-04-03

Applicant: NTN CORPORATION

Inventor： Minoru Suzuki ,  Tetsuya Yamamoto ,  Koichi Okada

IPC: H05K7/20 ,  H02M7/537 ,  B60L1/00 ,  B60L3/00 ,  B60L11/18 ,  B60L15/20 ,  B60K11/02 ,  B60K7/00 ,  B60K11/06 ,  B60K1/00 ,  B60K1/04

CPC classification number: H05K7/2089 ,  B60K7/0007 ,  B60K11/02 ,  B60K11/06 ,  B60K2001/003 ,  B60K2001/0416 ,  B60K2007/0038 ,  B60K2007/0092 ,  B60L1/003 ,  B60L3/003 ,  B60L3/0061 ,  B60L11/1803 ,  B60L11/1874 ,  B60L15/2009 ,  B60L15/2036 ,  B60L2220/14 ,  B60L2220/44 ,  B60L2240/36 ,  B60L2240/423 ,  B60L2240/525 ,  B60L2250/26 ,  H02M7/537 ,  H05K7/209 ,  H05K7/20927 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/705 ,  Y02T10/7275

Abstract: A cooling structure for an inverter (31) controls a motor (6) to drive an automobile. This inverter device (22) includes a power circuit section (28) having an inverter (31) to convert a DC power of a battery (19) to an AC power for the motor (6), and a casing (39) enclosing the power circuit section (28). A fin (41) is provided in an outer surface of the casing (39), a coolant path (42) for the flow of a cooling medium is provided within the casing (39) or in the outer surface thereof, and a pump (43) circulating the cooling medium in the coolant path (42) is disposed on or in the casing (39). With this structure, the flow resistance for cooling the inverter (31) is reduced to allow the pump (43) to be downsized and a proper cooling can be accomplished to the amount of heat by the inverter (31).

Abstract translation: 逆变器（31）的冷却结构控制电机（6）驱动汽车。 该逆变器装置（22）包括电源电路部（28），具有将电池（19）的直流电力转换为电动机（6）的交流电力的逆变器（31），以及包围 电源电路部分（28）。 在壳体（39）的外表面设置有翅片（41），在壳体（39）内部或其外表面设置用于冷却介质流动的冷却剂路径（42） 在冷却剂路径（42）中使冷却介质循环的循环装置（43）设置在壳体（39）上或壳体（39）中。 通过这种结构，减少用于冷却逆变器（31）的流动阻力，以使泵（43）小型化，并且可以通过逆变器（31）对热量进行适当的冷却。