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US 10,873,232 B2Granted
Electric power unit
AssigneeHonda Motor Co., Ltd.
InventorsNobuyuki Kaneko, Masahiro Takahashi
Life of this patent
Estimating the term…
Abstract
An electric power unit includes a motor case accommodating a motor, a motor cover covering an opening of the motor case, a driver case attached to the motor case, and accommodating a driver for controlling the motor. A seal surface of the motor case is inclined, and a seal surface of the driver case is attached to the inclined seal surface.
Claims9
An electric power unit comprising:
- a motor case configured to include a motor storage part that accommodates a motor having an output shaft and a driver storage part that accommodates part of a driver;
- a motor cover configured to cover an opening of the motor case;
- a driver case attached to the motor case, and configured to cover part of the driver that controls the motor;
- a battery provided with respect to the motor case in an axial direction of the output shaft of the motor;
- a battery case configured to accommodate the battery;
- and
- a battery dock configured to support the battery case,
- wherein
- a seal surface of the motor case is inclined along the axial direction of the output shaft of the motor toward the motor cover, and a seal surface of the driver case is attached to the inclined seal surface,
- the motor cover is attached to the motor case in the axial direction of the output shaft of the motor,
- a cooling fan that is a centrifugal fan sending wind radially outward is provided at an end of the output shaft of the motor opposite to a side of the output shaft of the motor where the motor cover is provided,
- the motor case includes first and second wall portions located opposite to the opening that is covered by the motor cover, the first wall portion partially defines the driver storage part of the motor case and is continuous with the second wall portion that partially defines the motor storage part of the motor case, and
- a channel through which cooling wind from the cooling fan flows is provided between the first wall portion of the motor case and the battery dock.
10 more elements
An electric power unit comprising:
- a motor case configured to include a motor storage part that accommodates a motor having an output shaft and a driver storage part that accommodates part of a driver;
- a motor cover attached to the motor storage part of the motor case and configured to cover an opening of the motor case;
- a driver case attached to the driver storage part of the motor case and configured to cover part of the driver that controls the motor;
- a battery provided with respect to the motor case in an axial direction of the output shaft of the motor;
- a battery case configured to accommodate the battery;
- and
- a battery dock configured to support the battery case,
- wherein
- a seal surface of the motor case is inclined along the axial direction of the output shaft of the motor toward the motor cover, and a seal surface of the driver case is attached to the inclined seal surface,
- a cooling fan that is a centrifugal fan sending wind radially outward is provided at an end of the output shaft of the motor opposite to a side of the output shaft of the motor where the motor cover is provided, and
- a channel through which cooling wind from the cooling fan flows is provided between the driver storage part of the motor case and the battery dock, and the channel is separated by a partition wall into a suction channel and a discharge channel.
8 more elements
Dependencies are inferred from the claim text.