BRUSHLESS WIPER MOTOR - MITSUBA CORP

Title:

BRUSHLESS WIPER MOTOR

Document Type and Number:

WIPO Patent Application WO/2016/167168

Kind Code:

A1

Abstract:

Provided is a 4-pole/6-slot design in which the stator 44 is of mirror-image symmetrical shape centered on the rotor 45, whereby axial runout of the rotor 45 can be minimized. The number of poles and the number of slots are set to the minimum necessary to minimize axial runout of the rotor 45, magnetic noise is brought into approximation with mechanical noise, and therefore the overall noise generated by the DR-side wiper motor 21 can be lowered in frequency, and low acoustic sensitivity [dB] in the vehicle cabin can be achieved. The stator 44 is affixed inside a housing 40, and the housing 40 is provided with attachment legs affixed to a vehicle-affixing part, whereby the stator 44, which is a source of magnetic noise, can be affixed to the vehicle exclusively via the housing 40. Therefore, it is possible to easily design a brushless wiper motor that is quieter.

Inventors:

KIMURA MASAAKI (JP)
ANNAKA TOMOHIKO (JP)
KIMURA TOSHIYUKI (JP)

Application Number:

PCT/JP2016/061295

Publication Date:

October 20, 2016

Filing Date:

April 06, 2016

Export Citation:

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Assignee:

MITSUBA CORP (JP)

International Classes:

H02K21/14; B60S1/08; H02K7/14

Foreign References:

JP2005041285A	2005-02-17
JP2014195389A	2014-10-09

Other References: