公开(公告)号：US11967867B2

公开(公告)日：2024-04-23

申请号：US17156903

申请日：2021-01-25

Applicant: DENSO CORPORATION

Inventor： Tomohisa Sano ,  Yuki Takahashi ,  Ryota Tanabe ,  Yuta Hashimoto ,  Wataru Funatsu ,  Norihiro Hayashi

IPC: H02K5/20 ,  B60K7/00 ,  H02K1/2791 ,  H02K5/22 ,  H02K7/00 ,  H02K11/33 ,  H02K21/22

CPC classification number: H02K11/33 ,  B60K7/0007 ,  H02K1/2791 ,  H02K5/20 ,  H02K5/203 ,  H02K5/225 ,  H02K7/006 ,  H02K21/22 ,  B60K2007/0092

Abstract: A rotating electric machine includes: a field element that includes a magnet portion that includes a plurality of magnetic poles; an armature that includes an armature winding of multiple phases; and a power converter that is electrically connected to the armature winding.
The rotating electric machine also includes: a plurality of electrical components that configure the power converter; and a housing member that includes a cylindrical portion that is provided on a radially inner side of a magnetic circuit portion that includes the magnet portion and the armature winding, and to which the plurality of electrical components are disposed. The cylindrical portion is provided with a coolant passage through which a coolant flows. The plurality of electrical components are arranged in the housing member on a radially inner side of the cylindrical portion, in a circumferential direction along the cylindrical portion.

公开(公告)号：US20240215211A1

公开(公告)日：2024-06-27

申请号：US18594278

申请日：2024-03-04

Applicant: DENSO CORPORATION

Inventor： Tetsuya MATSUOKA ,  Yuta Hashimoto ,  Tomoki Kozawa ,  Kazuya Takeuchi ,  Shinji Takai ,  Takahiro Shimizu

IPC: H05K7/20 ,  H02M7/00 ,  H02M7/537

CPC classification number: H05K7/20927 ,  H02M7/003 ,  H02M7/537

Abstract: The power conversion device has a case, a semiconductor module, a first cooler that cools the semiconductor module from one side, a second cooler that cools the semiconductor module from the back side, and a coupling pipe that couples a flow path of the first cooler with a flow path of the second cooler. A flow rate of the refrigerant is made different between the flow paths, and the flow path having a larger flow rate is larger in cross-sectional area than the flow path having a smaller flow rate. The first cooler having a wider flow path is formed by a part of the case that houses the semiconductor module, and the second cooler having a narrower flow path is housed in the case together with the semiconductor module.

公开(公告)号：US11942869B2

公开(公告)日：2024-03-26

申请号：US17155174

申请日：2021-01-22

Applicant: DENSO CORPORATION

Inventor： Tomohisa Sano ,  Ryota Tanabe ,  Yuta Hashimoto ,  Kazuma Fukushima ,  Mamoru Kuwahara

IPC: H02M7/00 ,  H01L25/18 ,  H02M7/537

CPC classification number: H02M7/003 ,  H01L25/18 ,  H02M7/537

Abstract: A power module is applied to an electric power conversion device in which multiple upper-lower arm circuits are connected to an electric power line in parallel. The power module includes the multiple upper-lower arm circuits; a capacitor connected to each of the multiple upper-lower arm circuits in parallel; an upper wiring that connects an upper arm and a positive electrode terminal of the capacitor; a lower wiring that connects a lower arm and a negative electrode of the capacitor; an upper electric power wiring that is an electric power wiring connected to the electric power line and connects a high potential line of the electric power line and the upper wiring; and a lower electric power wiring that is an electric power wiring connected to the electric power line and connects a lower potential line of the electric power line and the lower wiring.

公开(公告)号：US11653481B2

公开(公告)日：2023-05-16

申请号：US17155729

申请日：2021-01-22

Applicant: DENSO CORPORATION

Inventor： Tomohisa Sano ,  Ryota Tanabe ,  Yuta Hashimoto ,  Wataru Funatsu

IPC: H05K7/20 ,  H02M7/00 ,  H02P27/06

CPC classification number: H05K7/20927 ,  H02M7/003 ,  H02P27/06

Abstract: An electric power conversion device includes: a cooler that includes a flow path through which a refrigerant flows, a first surface, and a second surface opposite to the first surface in a thickness direction; and multiple power modules that include a semiconductor device configuring an upper-lower arm circuit, and a capacitor connected to the upper-lower arm circuit in parallel. The capacitor and the semiconductor device are arranged in the thickness direction. The multiple power modules are placed on both of the first surface and the second surface of the cooler.

公开(公告)号：US11961677B2

公开(公告)日：2024-04-16

申请号：US17870189

申请日：2022-07-21

Applicant: DENSO CORPORATION

Inventor： Mamoru Kuwahara ,  Yuta Hashimoto ,  Kazuya Takeuchi

IPC: H01G4/228 ,  H01G2/08 ,  H01G4/224 ,  H02M7/48

CPC classification number: H01G4/228 ,  H01G2/08 ,  H01G4/224 ,  H02M7/48

Abstract: A capacitor module includes a capacitor element, a plurality of connection terminals for electrically connecting the capacitor element to a semiconductor module and a power supply that are another equipment, and an exterior coating that includes a resin film having electrical insulating property and wraps the capacitor element except the plurality of connection terminals.

公开(公告)号：US11888376B2

公开(公告)日：2024-01-30

申请号：US17154697

申请日：2021-01-21

Applicant: DENSO CORPORATION

Inventor： Ryota Tanabe ,  Yuta Hashimoto ,  Tomohisa Sano ,  Tomoyuki Shinkai

IPC: H02K5/20 ,  H02K11/33 ,  H02K5/22

CPC classification number: H02K5/203 ,  H02K5/20 ,  H02K5/225 ,  H02K11/33

Abstract: A rotary electric machine unit including a rotary electric machine, and an electric power conversion device having a plurality of power modules. The rotary electric machine includes a stator, a rotor, and a housing. The housing includes a housing flow path through which a refrigerant flows. The power modules of the electric power conversion device and the rotary electric machine are configured to be cooled by the refrigerant.

公开(公告)号：US11496017B2

公开(公告)日：2022-11-08

申请号：US16708570

申请日：2019-12-10

Applicant: DENSO CORPORATION

Inventor： Naoki Hirasawa ,  Ryota Tanabe ,  Yuta Hashimoto

IPC: H02K3/50 ,  H02K7/08 ,  H02K21/22 ,  H02K15/00 ,  H02K11/33

Abstract: A rotating electric machine includes a field that includes a magnet unit having a plurality of magnetic poles, an armature including a multi-phase armature coil, and an electric power conversion device that is configured to perform electric power conversion and supply electric power resulting from the electric power conversion to the armature. Moreover, one of the field and the armature is configured as a rotor while the other is configured as a stator. The electric power conversion device includes at least one band-shaped busbar through which electric current flows during the electric power conversion. The at least one busbar has a cross section where a thickness in a lateral direction of the cross section at one end of the cross section in a longitudinal direction of the cross section is smaller than a thickness in the lateral direction at the other end of the cross section in the longitudinal direction.