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Patent Searching and Data


Title:
ROTATING ELECTRIC MACHINE AND DUMP TRUCK EQUIPPED THEREWITH
Document Type and Number:
WIPO Patent Application WO/2020/158396
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a rotating electric machine that makes it possible to obtain a stable grounding effect even in a dirty environment. For this purpose, in a rotating electric machine having a grounding structure that comes into contact with a rotating shaft, the grounding structure has a mounting member equipped with a pair of fixing portions, a cleaning device installed at the fixing portion on the upstream side of the rotating shaft in the rotation direction, and a grounding device installed at the fixing portion on the downstream side of the rotating shaft in the rotation direction; the cleaning device has a broom-shaped brush installed so that the longitudinal direction of a rectangular cross section substantially coincides with the axial direction of the rotating shaft; the grounding device has a broom-shaped conductive fiber installed so that the longitudinal direction of the rectangular cross section substantially coincides with the axial direction of the rotating shaft; and the cleaning device and the grounding device are installed so that during the rotation of the rotating shaft, the tip of the broom-shaped conductive fiber passes in contact with the inside of the region of the outer peripheral surface of the rotary shaft where the tip of the broom-shaped brush has passed while being in contact.

Inventors:
TAKISAWA HAYATO (JP)
FUJII KATSUHIKO (JP)
MASAOKA EIKI (JP)
WADA MAYU (JP)
Application Number:
PCT/JP2020/001137
Publication Date:
August 06, 2020
Filing Date:
January 16, 2020
Export Citation:
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Assignee:
HITACHI INDUSTRIAL PRODUCTS LTD (JP)
International Classes:
H02K11/40; B60P1/04; H01R39/56; H02K5/16
Foreign References:
JPH0819207A1996-01-19
JPS5548355U1980-03-29
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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