Toyota Jidosha Kabushiki Kaisha

Aisin Corporation

Shigeki Ideue

Masashi Ikemura

Tatsuya Okishima

Kenji Dozono

Takeru Morita

Toshihiko Kamiya

Keita Inda

Yuta Watanabe

Koji Kato

Akinori Ozawa

Kenji Douzono

A rotary electric machine rotor includes a rotor core and a core support member that supports the rotor core. The core support member includes a tubular portion formed in a tubular shape and a support portion supported so as to be rotatable with respect to a non-rotary member to support the tubular portion from the inner side in a radial direction. The core support member is formed such that a diameter of a fitting surface portion in a specific region, which includes an overlapping region which overlaps a connection region as viewed in the radial direction, is smaller than a diameter of the fitting surface portion in a general region which is a region other than the specific region.

Manufacturing method for rotary electric machine rotor

A hybrid drive device includes: a rotor; a transmission; and a case, in which a rotor support member that supports a rotor of the rotary electric machine includes an annular member that faces an end wall portion of the case, the end wall portion includes a first tubular portion that protrudes in an axial direction from an inner periphery toward the transmission, and a second tubular portion that protrudes in the axial direction toward the transmission so as to surround the first tubular portion, the annular member includes a tubular portion that protrudes in the axial direction from an inner periphery toward an engine, an inner side radial bearing is disposed between the first transmitting shaft and an inner peripheral surface of the first tubular portion of the end wall portion, a clearance is formed between an outer peripheral surface of the first tubular portion of the end wall portion and an inner peripheral surface of the tubular portion of the annular member, and an outer side radial bearing is disposed between an outer peripheral surface of the tubular portion of the annular member and an inner peripheral surface of the second tubular portion of the end wall portion. As a result, the durability of the bearing for supporting the rotor of the rotary electric machine in the radial direction can be further improved.

Hybrid drive device

A vehicle drive apparatus includes: a first bearing disposed between a rotor support member and a case in a radial direction so as to restrict movement of the rotor support member to a first axial side relative to the case; and a second bearing disposed between a connecting shaft and the case in an axial direction so as to restrict movement of the connecting shaft to a second axial side relative to the case. A fluid transmission device is disposed on the first axial side relative to the connecting shaft. The rotor support member includes a tubular portion having a tubular shape extending in the axial direction and fitted to an outer peripheral surface of the connecting shaft. Movement of the connecting shaft to the first axial side relative to the tubular portion is restricted.

Vehicle drive apparatus

A hybrid drive device including a rotary electric machine having a stator and a rotor, a transmission coupled to the rotary electric machine, a clutch that couples an engine and the rotary electric machine and that releases a connection of the two, and a case for housing the rotary electric machine and the clutch, the hybrid drive device including: a first transmitting shaft coupled to an output shaft of the engine; and a second transmitting shaft that transmits power from the rotor of the rotary electric machine to the transmission.

A rotating electric machine includes a case, a stator, a first rotary member including a rotor core and a first shaft, a second rotary member including a second shaft, and a multiple disc clutch. A first oil passage and a second oil passage are provided inside the case. The first oil passage starts from an inside of the first shaft or an inside of the second shaft, passes through the multiple disc clutch from an inner side to an outer side in a radial direction with respect to a rotation center, and reaches an inner side of the rotor core in the radial direction. The second oil passage starts from the inside of the first shaft or the inside of the second shaft and reaches the inner side of the rotor core in the radial direction without passing through the multiple disc clutch.

Growing community of inventors

Anjo, Japan

Shigeki Ideue