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Title:
ROTARY ELECTRIC MACHINE, AND, DUMP TRUCK WITH THE SAME
Document Type and Number:
Japanese Patent JP2020127257
Kind Code:
A
Abstract:
To provide a rotary electric machine capable of obtaining a stable ground effect even under a contamination environment.SOLUTION: The present invention relates to a rotary electric machine comprising a ground structure in contact with a rotary shaft. The ground structure comprises: a mount member including a pair of stationary portions; a cleaning device installed in an upstream-side stationary portion with respect to a rotation direction of the rotary shaft; and a ground device installed in a downstream-side stationary portion with respect to the rotation direction of the rotary shaft. The cleaning device includes a broom-shaped brush which is installed in such a manner that a length direction of a rectangular cross section is substantially coincident with an axial direction of the rotary shaft, and the ground device includes broom-shaped conductive fibers which are installed in such a manner that a length direction of the rectangular cross section is substantially coincident with the axial direction of the rotary shaft. The cleaning device and the ground device are installed in such a manner that tip ends of the broom-shaped conductive fibers pass in contact with the inside of a region of an outer peripheral surface of the rotary shaft where a tip end of the broom-shaped brush passes in contact therewith, during rotation of the rotary shaft.SELECTED DRAWING: Figure 1

Inventors:
TAKIZAWA HAYATO
FUJII KATSUHIKO
MASAOKA HIDEKI
WADA MAYU
Application Number:
JP2019017084A
Publication Date:
August 20, 2020
Filing Date:
February 01, 2019
Export Citation:
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Assignee:
HITACHI INDUSTRIAL PRODUCTS LTD
International Classes:
H02K11/40; B60P1/04; H01R39/56; H02K5/16
Attorney, Agent or Firm:
Polaire Patent Service Corporation