{
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  "description": "[Problem] To provide an electric work machine that can maintain good balance of a machine body during work even when a large-capacity (large-size) battery unit is used. [0002] [Solution] A hydraulic excavator as an electric work machine comprises a lower traveling body, an upper swivel body located…",
  "path": "/patents/1400456",
  "publishedAt": "2026-02-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60K1/04",
    "YANMAR HOLDINGS CO LTD [JP]"
  ],
  "textContent": "[Problem] To provide an electric work machine that can maintain good balance of a machine body during work even when a large-capacity (large-size) battery unit is used. [0002] [Solution] A hydraulic excavator as an electric work machine comprises a lower traveling body, an upper swivel body located above the lower traveling body and provided to be swivelable with respect to the lower traveling body, an electric motor arranged in the upper swivel body, a hydraulic pump arranged in the upper swivel body and driven by the electric motor, a battery unit arranged in the upper swivel body and storing electric power to drive the electric motor, and a hydraulic actuator driven by hydraulic oil supplied from the hydraulic pump. The upper swivel body has a swivel frame at a bottom portion thereof. The battery unit is arranged on the swivel frame. The electric motor and the hydraulic pump are arranged on the swivel frame, side by side in a left-right direction of the upper swivel body.",
  "title": "ELECTRIC WORK MACHINE TECHINICAL FIELD"
}