Straddle-type electric vehicle

Patent metadata

Field	Value
Publication number	US-2021001947-A1
Application number	US-202017029783-A
Country	US
Kind code	A1
Filing date	Sep 23, 2020
Priority date	Mar 29, 2018
Publication date	Jan 7, 2021
Grant date	—

Abstract

A straddle-type electric vehicle, comprising a pair of left and right main frames, a seat rail extending rearward from a rear portion of each of the main frames, a pivot frame extending downward from a rear portion of each of the main frames, a swing arm supported by the pivot frame, a battery arranged in a space between the main frames, a power unit arranged in the space, a wind guiding duct for guiding traveling wind to the space, and an air outlet port for emitting the traveling wind, the air outlet port being provided so as to be capable of emitting the traveling wind inside the wind guiding duct from a lower portion of a vehicle body to an area below the vehicle body.

First claim

1 . A straddle-type electric vehicle, comprising:
a pair of left and right main frames that is installed so as to extend in a longitudinal direction of a vehicle body; a seat rail that is installed so as to extend rearward from a rear portion of each of the pair of left and right main frames; a pivot frame that is installed so as to extend downward from a rear portion of each of the pair of left and right main frames; a swing arm that is supported by the pivot frame and by which a rear wheel is swingably supported; a battery that is arranged in a space between the pair of left and right main frames in a plan view; a power unit that is arranged in the space in a plan view and generates motive power based on electric power of the battery; a wind guiding duct for guiding traveling wind to the space; and an air outlet port for emitting the traveling wind, wherein the air outlet port is provided so as to be capable of emitting the traveling wind inside the wind guiding duct from a lower portion of the vehicle body to an area below the vehicle body.

2 . The straddle-type electric vehicle according to claim 1 , wherein
the power unit is supported in front of the pivot frame, and the air outlet port is provided between the power unit and the pivot frame.

3 . The straddle-type electric vehicle according to claim 1 , wherein the power unit is fixed with respect to the pivot frame in the space in a plan view.

4 . The straddle-type electric vehicle according to claim 3 , wherein the wind guiding duct includes a guide portion that is installed so as to extend in an up-and-down direction of the vehicle body so that the traveling wind is guided to the area below the vehicle body.

5 . The straddle-type electric vehicle according to claim 1 , further comprising
a control apparatus that controls the power unit by supplying electric power of the battery to the power unit, wherein the control apparatus is fixed with respect to the seat rail.

6 . The straddle-type electric vehicle according to claim 5 , wherein
the wind guiding duct includes a recess portion that is recessed toward a rear of the vehicle body so that at least a part of the traveling wind is guided to the control apparatus.

7 . The straddle-type electric vehicle according to claim 1 , wherein
the power unit is configured to be coolable by a cooling medium circulating therein, the straddle-type electric vehicle further includes a heat exchanger that is connected to the power unit via a pipe that forms a flow path for the cooling medium, and the heat exchanger is positioned on a path of the traveling wind to the air outlet port inside the wind guiding duct.

8 . The straddle-type electric vehicle according to claim 7 , wherein
the wind guiding duct includes an interior wall that is connected to the air outlet port and extends so as to guide the traveling wind to the area below the vehicle body, and the heat exchanger is positioned so as to overlap the air outlet port when viewed in a direction parallel to a direction in which the interior wall extends.

9 . The straddle-type electric vehicle according to claim 7 , wherein
the heat exchanger is a radiator, and the wind guiding duct includes an interior wall that is connected to the air outlet port and extends so as to guide the traveling wind to the area below the vehicle body, and the heat exchanger is fixed in orientation so as to intersect a direction in which the interior wall extends.

10 . The straddle-type electric vehicle according to claim 7 , wherein
the heat exchanger is an oil cooler, and the wind guiding duct includes an interior wall that is connected to the air outlet port and extends so as to guide the traveling wind to the area below the vehicle body, and the heat exchanger is fixed in orientation so as to intersect a direction in which the interior wall extends.

11 . The straddle-type electric vehicle according to claim 7 , wherein
the heat exchanger is a heat sink, and the wind guiding duct includes an interior wall that is connected to the air outlet port and extends so as to guide the traveling wind to the area below the vehicle body, and the heat exchanger is fixed in orientation so as to be parallel to a direction in which the interior wall extends.

12 . The straddle-type electric vehicle according to claim 1 , further comprising:
a second heat pipe that is installed so as to extend in an up-and-down direction of the vehicle body and is connected to the battery; and a second heat sink that is provided on an upper surface of the battery and is connected to the second heat pipe, wherein the wind guiding duct is provided so as to guide the traveling wind to the second heat sink.

Assignees

• Honda Motor Co Ltd

Inventors

• Fujikubo Makoto
• Sato Katsuhiko
• Ikeda Tsugio
• Kubota Ryo
• Hirose Yudai
• Ishimatsu Naoya
• Tamura Hiroshi

Classifications

• B62K11/04 Primary

  characterised by the engine being between front and rear wheels · CPC title

• B62J50/30

  Means for ventilation within devices provided on the cycle, e.g. ventilation means in a battery container · CPC title

• B62J43/16 Primary

  on motorcycles or the like · CPC title

• B62J11/16

  specially adapted for hoses or pipes, e.g. hydraulic, pneumatic, coolant or air filter hoses (air filter hoses B62J40/10) · CPC title

• B62J17/10

  Ventilation or air guiding devices forming part of fairings · CPC title