Brushed Direct Current Motor and Brake System for Vehicle Using The Same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20140042863A1
SERIAL NO

13940337

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In a brushed direct current motor including a stator that is provided with 2×P magnetic poles (P is odd and greater than or equal to three), an armature core rotatably held with respect to the stator and includes P×N±2 teeth (N is an even and greater than or equal to four) in a circumferential direction, a commutator held so as to integrally rotate with the armature core and includes commutator segments, the number of the commutator segments being the same as that of the teeth, a winding wound around the teeth in a double-wave form, and two anode brushes and two cathode brushes arranged in sliding contact with the commutator, a width angle WB of each of the brushes in sliding contact with the commutator is set so as to satisfy a relation of “WB>WP+WI”.

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Patent Owner(s)

Patent OwnerAddress
HITACHI AUTOMOTIVE SYSTEMS LTD2520 TAKABA HITACHINAKA-SHI IBARAKI 312-8503

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
MAKI, Kohji Hitachinaka, JP 44 223
OJIMA, Masayoshi Hitachi, JP 3 23

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