Electric vehicle

Patent metadata

Field	Value
Publication number	US-10814711-B2
Application number	US-201816475930-A
Country	US
Kind code	B2
Filing date	Jan 9, 2018
Priority date	Jan 16, 2017
Publication date	Oct 27, 2020
Grant date	Oct 27, 2020

Abstract

At least one of a pair of right and left motor unit support systems for mounting and supporting a motor unit ( 71 ) on a cross member ( 80 ) is fastened and fixed to an upper part of the motor unit ( 71 ) by a first shaft-like fastening member (a first bolt ( 101 )). An axial direction of the first shaft-like fastening member (the first bolt ( 101 )) is the same as a vehicle longitudinal direction in a state in which the at least one of the motor unit support systems is fastened and fixed to the upper part of the motor unit ( 72 ).

First claim

The invention claimed is:

1. An electric motor vehicle comprising:
a motor unit which is disposed between a pair of right and left side frames such that a motor output shaft thereof extends along a width of the vehicle, and which serves as a power source for driving right and left wheels;
a cross member disposed above the motor unit, and fixed to the pair of right and left side frames to extend along the width of the vehicle; and
a pair of right and left motor unit support systems for mounting and supporting the motor unit on the cross member, wherein
each of the pair of right and left motor unit support systems includes:
a fixed part fixed to the motor unit; and
a mounting shaft connected to the fixed part via a mounting bracket integrally formed with the fixed part, and the mounting shaft being fixed to the cross member,

the fixed part of at least one of the pair of right and left motor unit support systems is fastened and fixed to an upper part of the motor unit by a first shaft-like fastening member, and
an axial direction of the first shaft-like fastening member is the same as a vehicle longitudinal direction in a state in which the fixed part of the at least one of the motor unit support systems is fastened and fixed to the upper part of the motor unit,
wherein
the mounting shaft of at least one of the motor unit support systems is fastened and fixed to the cross member by a second shaft-like fastening member, and
an axial direction of the second shaft-like fastening member is the same as the vehicle longitudinal direction in a state in which the mounting shaft of the at least one of the motor unit support systems is fastened and fixed to the cross member.

2. The electric motor vehicle of claim 1 , wherein
recesses are formed in portions of the cross member where the mounting shafts are provided, the recesses being recessed in an opposite direction to the motor unit.

3. The electric motor vehicle of claim 1 , wherein
the upper part of the motor unit serves as a mount where the fixed part of one of the motor unit support systems is fastened and fixed, and
the mount includes:
a first part fastened to the fixed part by the first shaft-like fastening member; and
a second part extending from a portion of the first part opposite to the fixed part, in the vehicle longitudinal direction.

Assignees

• Mazda Motor

Inventors

• Suumen Hiroaki
• Aoyama Masaki
• Noguchi Yoshiaki
• Oki Yusuke

Classifications

• B60K1/00

  Arrangement or mounting of electrical propulsion units (B60K7/00 takes precedence; arrangement or mounting of plural diverse prime-movers for mutual or common propulsion B60K6/00) · CPC title

• B60K1/04 Primary

  of the electric storage means for propulsion · CPC title

• B62D21/02

  comprising longitudinally or transversely arranged frame members · CPC title

• B62D25/20

  Floors or bottom sub-units {(sub-frames for mounting engine or suspensions B62D21/11; drip trays F16N31/006)} · CPC title

• B60K2001/001

  one motor mounted on a propulsion axle for rotating right and left wheels of this axle · CPC title