Aisin Seiki Kabushiki Kaisha

Yuki Maekawa

Hiroyuki Nagata

An electric motor and a vehicle drive device having the same are provided. The electric motor includes a core unit having plural core assemblies, each being wound with a coil; an bus ring; plural supporting members having terminal accommodating portions; and an attachment member which includes at least one of a first holding portion for holding a first sensor for measuring a temperature of an oil stored in the case and a second holding portion for holding a second sensor for measuring a temperature of the coils at a predetermined second position. The attachment member is fixed to one of the supporting members such that the first or the second sensor is positioned at a corresponding one of the first position and the second position between adjacent terminal accommodating portions.

Electric motor with oil temperature sensor and coil temperature sensor, and vehicle drive device using such electric motor

An electric motor and a vehicle drive device having the same are provided. The electric motor includes a core unit having plural core assemblies fixed to a case, an annular bus ring attached to the core unit, plural supporting members attached the plural core assemblies, respectively, an attachment member holding a first sensor and fixed to a portion of a terminal accommodating portion such that the first sensor is soaked in an oil stored in the case, and an attachment member holding a second sensor and fixed to a portion of a terminal accommodating portion such that the second sensor is positioned at a second position for measuring a temperature of the coils between adjacent terminal accommodating portions which are not soaked in the oil.

Growing community of inventors

Kariya, Japan

Yuki Maekawa