US 10,538,157 B2Granted

Work vehicle

AssigneeKubota Corporation

InventorsYoshinori Oyama, Takeshi Satozono, Rei Tokuda, Kazuyuki Tashiro, Masatoshi Sakai, Yuki Nakaoka

Life of this patent

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Abstract

Provided is a work vehicle in which a seat support frame that supports a driver seat is equipped on a vehicle body frame, the vehicle body frame includes: a front portion vehicle frame at which a floor surface of a driving portion is provided; and a rear portion vehicle frame disposed at a position higher than the floor surface of the driving portion and rearward of the front portion vehicle frame. An engine is equipped below the rear portion vehicle frame, a battery that supplies power to an electric motor is equipped above the front portion vehicle frame and below the seat support frame, and a frame portion of the seat support frame that exists above the battery at a position opposing the battery is configured to be detachable from another frame portion that is fixed to the vehicle body frame.

Claims7

Dependent claims

A work vehicle, comprising:

a traveling apparatus;
an electric motor configured to drive the traveling apparatus;
a battery configured to supply power to the electric motor;
a cover member that supports a driver seat mounted thereon and includes a housing space in its interior;
a cooling fan configured to supply a cooling wind into the housing space to cool the battery;
a vehicle speed sensor configured to detect a vehicle speed;
and
a control device configured to control driving of the cooling fan,
wherein the control device is configured to drive the cooling fan based on a detection value of the vehicle speed sensor,
wherein the control device includes a traveling state determination unit configured to determine whether a vehicle is in a traveling state or a stopped state based on the detection value of the vehicle speed sensor, and a cooling fan driving unit configured to drive the cooling fan based on the determination result of the traveling state determination unit,
wherein, when in the stopped state, the vehicle is not driving, and the cooling fan driving unit is configured to drive the cooling fan only if the vehicle is in the stopped state, and
the cooling fan driving unit does not drive the cooling fan if the vehicle is in the traveling state,
wherein the battery and the cooling fan are arranged in the housing space,
wherein a ventilation opening is provided in a front wall portion of the cover member,
wherein the cooling fan is attached at the ventilation opening at a position adjacent the housing space,
wherein a recessed portion that is upwardly recessed is formed on a lower surface portion of the battery, and
wherein the battery and the electric motor are aligned to each other in a vertical direction, with an upper portion of the electric motor entering the recessed portion.

14 more elements

A work vehicle, comprising:

a traveling apparatus;
an electric motor configured to drive the traveling apparatus;
a battery configured to supply power to the electric motor;
and
a cover member that supports a driver seat mounted thereon and includes a housing space in its interior;
a cooling fan configured to supply a cooling wind into the housing space to cool the battery;
wherein the battery and the cooling fan are arranged in the housing space,
a ventilation opening is provided in a front wall portion of the cover member, and
the cooling fan is attached at the ventilation opening at a position adjacent the housing space,
wherein a recessed portion that is upwardly recessed is formed on a lower surface portion of the battery, and
wherein the battery and the electric motor are aligned to each other in a vertical direction, with an upper portion of the electric motor entering the recessed portion.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/845,580Filed 18 Dec 2017 · division
Priority: JP 2015-24852821 Dec 2015
Published: US 2018/0105032 A119 Apr 2018
Granted: 21 Jan 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification25 codes

B60K 1/04
Arrangement or mounting of electrical propulsion units: of the electric storage means for propulsion
B60K 6/24
Characterised by apparatus, components or means specially adapted for HEVs: characterised by the combustion engines
B60K 6/26
Characterised by apparatus, components or means specially adapted for HEVs: characterised by the motors or the generators
B60K 6/28
Characterised by apparatus, components or means specially adapted for HEVs: characterised by the electric energy storing means, e.g. batteries or…

Family

Application15/368,931Parent of this division · filed 5 Dec 2016
US 2018/0105032 A1Pre-grant publication · published 19 Apr 2018
US 10,232,699 B2Parent of this division
US 2017/0174069 A1Published application
US 10,538,157 B2This patent

From the US filing history. Foreign family members aren’t listed.