公开(公告)号：US20190309991A1

公开(公告)日：2019-10-10

申请号：US16372458

申请日：2019-04-02

Applicant: DENSO CORPORATION

Inventor： Takayuki FUKUDA

IPC: F24H9/20

Abstract: An electric heater device includes: a plurality of pipes stacked with each other through a predetermined clearance, a fluid flowing inside the plurality of pipes; a heating element that emits heat by being energized; and an electronic component module including an electronic component different from the heating element. The heating element and the electronic component module are disposed in the clearance between the plurality of pipes.

公开(公告)号：US20190313483A1

公开(公告)日：2019-10-10

申请号：US16372464

申请日：2019-04-02

Applicant: DENSO CORPORATION

Inventor： Takayuki FUKUDA

IPC: H05B3/40 ,  B60H1/03 ,  B60H1/22 ,  F24H1/10

Abstract: An electric heater device includes: a plurality of pipes stacked with each other through a predetermined clearance as a pipe stacked body, a fluid flowing inside the plurality of pipes; a heating element disposed in the clearance between the plurality of pipes; a housing that houses the plurality of pipes and the heating element, the housing being formed separately from the pipe stacked body; and a thermal resistance structure that increases a thermal resistance between the pipe stacked body and the housing.

公开(公告)号：US20190089228A1

公开(公告)日：2019-03-21

申请号：US16077898

申请日：2017-01-25

Applicant: DENSO CORPORATION

Inventor： Takayuki FUKUDA ,  Tsuyoshi TAKEMOTO

IPC: H02K11/02 ,  F04C15/00 ,  H02K5/10 ,  H02K11/33 ,  H02K5/20

Abstract: An electric compressor for a vehicle includes a compressor case, an inverter circuit, an inverter case, and a lid that closes an opening of the inverter case. The electric compressor further includes a seal component interposed between the inverter case and the lid to seal between the inverter case and the lid. The electric compressor further includes a conductive component. The conductive component transmits an electromagnetic wave noise from the inverter case to at least one of the compressor case and the lid, the electromagnetic wave noise propagating from the inverter circuit to the inverter case when the inverter circuit provides the electric current through the electric motor.

公开(公告)号：US20160043669A1

公开(公告)日：2016-02-11

申请号：US14781401

申请日：2014-03-27

Applicant: DENSO CORPORATION

Inventor： Takayuki FUKUDA ,  Tatsuhiro MATSUKI ,  Kazuaki TAKEMOTO

IPC: H02P5/68 ,  H02P3/08 ,  B60H1/00 ,  H02P21/00

CPC classification number: H02P5/68 ,  B60H1/00 ,  B60H1/00428 ,  B60H1/00857 ,  H02P3/08 ,  H02P21/0003 ,  H02P27/08 ,  Y02T10/88

Abstract: When a control device of a motor controller simultaneously rotates a first DC motor and a second DC motor by controlling a first circuit, a second circuit and a third circuit, the second circuit is shared. Further, the control device controls each of switch elements of the shared second circuit by using pulse-width modulation. Accordingly, the drive of the first DC motor and the second DC motor can be controlled with high accuracy by the change of a duty ratio of each of the switch elements of the shared second circuit.

Abstract translation: 当电动机控制器的控制装置通过控制第一电路，第二电路和第三电路同时旋转第一直流电动机和第二直流电动机时，共享第二电路。 此外，控制装置通过使用脉冲宽度调制来控制共享的第二电路的每个开关元件。 因此，可以通过改变共享的第二电路的每个开关元件的占空比来高精度地控制第一直流电动机和第二直流电动机的驱动。