Brushless wiper motor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10442401
APP PUB NO 20180312138A1
SERIAL NO

16029989

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Since a shape of a stator 44 is made mirror symmetric with respect to a rotor 45 as a 4-pole/6-slot type, rotational deflection of the rotor 45 can be suppressed. As the minimum number of poles and the minimum number of slots, which can suppress the rotational deflection of the rotor 45, a frequency of magnetic noises approaches a frequency of mechanical noises. Thus, it is possible to integrate the whole noises generated by the DR-side wiper motor 21 into a low frequency range thereof, and to make the acoustic sensitivity (dB) of a vehicle interior smaller. Since the stator 44 is fixed inside a housing 40 and mounting legs fixed to a vehicle body fixed portion are provided in the housing 40, the stator 40, which is a source of the magnetic noises, can be fixed to a vehicle via only the housing 40. Therefore, a brushless wiper motor with quietness improved further can be designed.

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First Claim

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Patent Owner(s)

  • MITSUBA CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Annaka, Tomohiko Gunma, JP 10 22
Kimura, Masaaki Gunma, JP 63 710
Kimura, Toshiyuki Gunma, JP 72 1188

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