Brush assembly for a power tool motor

A power tool is provided including a tool housing in which an electric motor is disposed. The electric motor includes a stator and an armature rotatably received within the stator. The armature has an armature shaft on which a commutator is mounted. The power tool further includes at least one brush...

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Bibliographic Details
Main Authors Nace, Daniel F, Mattucci, Marco Alessandro
Format Patent
LanguageEnglish
French
German
Published 24.05.2017
Subjects
BASIC ELECTRIC ELEMENTS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
CURRENT COLLECTORS
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
LINE CONNECTORS
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Summary:A power tool is provided including a tool housing in which an electric motor is disposed. The electric motor includes a stator and an armature rotatably received within the stator. The armature has an armature shaft on which a commutator is mounted. The power tool further includes at least one brush assembly disposed around the commutator, the brush assembly including: a brush having two grooves on opposites surfaces therein; a brush holder comprising two support plates arranged defining guiderails that extend into the grooves of the brush to facilitate movement of the brush along a single axis; and a spring contacting the brush that urges the brush radially inwardly along the axis.
Bibliography:Application Number: EP20130168345