Brush holder stay of rotary electric machine

Brush holder stay of rotary electric machine

In a rotary electric machine using a sintered oil-impregnated bearing, oil that oozes out from the sintered oil-impregnated bearing is prevented from attaching onto a brush. In a stay part providing a brush holder stay, there is formed a through hole into which the sintered oil-impregnated bearing i...

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Hauptverfasser: FUJITA YUSUKE, YAMAMOTO KEN, HAGIWARA SHINICHI, KIUCHI KEIJI, KUDO TOMIO
Format: Patent
Sprache:eng
Schlagworte:
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
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creator FUJITA YUSUKE
YAMAMOTO KEN
HAGIWARA SHINICHI
KIUCHI KEIJI
KUDO TOMIO
description In a rotary electric machine using a sintered oil-impregnated bearing, oil that oozes out from the sintered oil-impregnated bearing is prevented from attaching onto a brush. In a stay part providing a brush holder stay, there is formed a through hole into which the sintered oil-impregnated bearing is fitted. A pair of holder portions that each accommodate therein a brush are formed to diametrically face each other. A terminal-fixing portion is formed on one side of each holder portion. A prescribed gap exists between the one side position and the terminal-fixing portion. By closing the inner-radial end of the gap by an end wall, a first oil pool is formed. Thus, the first oil pool is structured as an oil pool on an oil path of any oozed oil flowing from the through hole toward the outer radial side of the holder portion to prevent the oil from entering the holder portion.
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subjects CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
title Brush holder stay of rotary electric machine
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