Denso Corporation

Yuta Hashimoto

Ryota Tanabe

Tomohisa Sano

Yuki Takahashi

Mamoru Kuwahara

Wataru Funatsu

Norihiro Hayashi

Kazuya Takeuchi

Kazuma Fukushima

Naoki Hirasawa

Tomoyuki Shinkai

Hideaki Kuri

A rotating electric machine includes a housing member including a cylindrical portion. First and second electrical components are arranged in the circumferential direction along the cylindrical portion in a radial direction of the cylindrical portion. A coolant passage between an inlet portion and an outlet portion is formed in the cylindrical portion. The housing member includes a partition wall portion partitioning a portion of the coolant passage from the inlet portion to a specific position between the inlet portion and the outlet portion in the circumferential direction as an upstream-side path. The partition wall portion is separated in the radial direction from a wall portion of the cylindrical portion. The first electrical component is arranged on an inner side in the radial direction relative to the upstream-side path, and the second electrical component is arranged on the inner side in the radial direction relative to a downstream-side path.

Rotating electric machine and manufacturing method for rotating electric machine

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.

Rotating electric machine and vehicle wheel using rotating electric machine

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.

Capacitor module and power conversion apparatus

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.

Power module and electric power conversion device

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.

Rotary electric machine unit having rotary electric machine with cooling part and electric power conversion device

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.

Electric power conversion device

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.

Growing community of inventors

Kariya, Japan

Yuta Hashimoto