ELECTRIC WORK VEHICLE - HITACHI CONSTRUCTION MACHINERY

Title:

ELECTRIC WORK VEHICLE

Document Type and Number:

WIPO Patent Application WO/2012/011530

Kind Code:

A1

Abstract:

Provided is an electric work vehicle such that it is possible to shorten the length of a high-tension cable for connecting an electric motor included within a slewing motor to an inverter for controlling the electric motor. A region on a main frame (1) is divided into three regions consisting of a center region (S), a first side region (L), and a second side region (R), by means of a first vertical rib (1a) and a second vertical rib (1b). A slewing hydraulic motor (8) and a slew assist electric motor (21), which constitute the slewing motor, are disposed in the center region (S). An inverter (22) for controlling the slew assist electric motor (21) is positioned near the second vertical rib (1b) within a second tool chamber (13) provided in the second side region (R). In other words, the inverter (22) is provided at a position near the slew assist electric motor (21).

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Inventors:

OKUMURA SHINYA (JP)
OJIMA MITSUGU (JP)
OTA YASUNORI (JP)
ISHIDA TOSHIHIKO (JP)
HIROKI TAKENORI (JP)

Application Number:

PCT/JP2011/066588

Publication Date:

January 26, 2012

Filing Date:

July 21, 2011

Export Citation:

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Assignee:

HITACHI CONSTRUCTION MACHINERY (JP)
OKUMURA SHINYA (JP)
OJIMA MITSUGU (JP)
OTA YASUNORI (JP)
ISHIDA TOSHIHIKO (JP)
HIROKI TAKENORI (JP)

International Classes:

E02F9/08; E02F9/20

Domestic Patent References:

WO2008015798A1	2008-02-07
WO2008015798A1	2008-02-07

Foreign References:

JP2002227241A	2002-08-14
JP2004360216A	2004-12-24

Other References: