Electric work machine
AssigneeYanmar Holdings Co., Ltd.
InventorsHiroyuki Muraoka, Mitsuyuki Hatanaka
Life of this patent
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Abstract
A hydraulic excavator as an electric work machine includes, in a machine body, a battery unit that stores electric power, an electric motor that is driven by the electric power supplied from the battery unit, a hydraulic pump that is driven by the electric motor, an oil cooler that cools hydraulic oil discharged from the hydraulic pump, and a fan that draws air into the machine body. The machine body has a first opening and a second opening, and the first opening is provided on a first lateral side of the machine body, and the second opening is provided on a second lateral side of the machine body. The fan is placed to face the first opening in the machine body, and the oil cooler is placed to face the second opening in the machine body.
Claims16
An electric work machine comprising:
- in a machine body,
- a battery unit that stores electric power;
- an electric motor that is driven by the electric power supplied from the battery unit;
- a hydraulic pump that is driven by the electric motor;
- an oil cooler that cools hydraulic oil discharged from the hydraulic pump;
- and
- a fan that draws air into the machine body, wherein
- the machine body has a first opening and a second opening,
- the first opening is provided on a first lateral side of the machine body,
- the second opening is provided on a second lateral side of the machine body,
- the fan is placed to face the first opening in the machine body,
- the oil cooler is placed to face the second opening in the machine body, and wherein the battery unit is placed between the fan and the oil cooler.
Dependencies are inferred from the claim text.