Patent ID: 11867277
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B  Y | IPC B  F

Claim 0:
1. A vehicle transaxle in which a first housing case is fixed to a transaxle case at a predetermined interval, the first housing case being configured such that a first vibration element is accommodated in the first housing case, the transaxle case being configured such that a vehicle driving electric motor is accommodated in the transaxle case, the vehicle transaxle comprising a resonator having a cavity and an opening, the cavity being formed between the transaxle case and a first facing wall of the first housing case, the first facing wall facing the transaxle case, the opening being formed such that the cavity is partially opened to a lateral side through the opening, wherein:
a volume of the cavity and a volume of the opening are set such that a resonance frequency of the resonator is lower than a natural frequency of the first facing wall of the first housing case;
a second housing case in which a second vibration element is accommodated is fixed to the transaxle case such that the second housing case is disposed at a predetermined interval from the first facing wall of the first housing case;
the cavity is formed between the first facing wall and a second facing wall of the second housing case, the second facing wall facing the first facing wall; and
the volume of the cavity and the volume of the opening are set such that the resonance frequency of the resonator is lower than the natural frequency of the first facing wall and a natural frequency of the second facing wall.