The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 23, 2016

Filed:

Jan. 24, 2013
Applicant:

Asmo Co., Ltd., Kosai, Shizuoka-pref., JP;

Inventors:

Yoshimichi Sahara, Kosai, JP;

Takuro Ota, Kosai, JP;

Akio Murase, Kosai, JP;

Akihiko Suzuki, Kosai, JP;

Assignee:

ASMO CO., LTD., Shizuoka-pref., JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 11/00 (2016.01); H02K 9/22 (2006.01); H02K 29/08 (2006.01);
U.S. Cl.
CPC ...
H02K 11/0021 (2013.01); H02K 9/22 (2013.01); H02K 11/33 (2016.01); H02K 29/08 (2013.01);
Abstract

A brushless motor is provided that is capable of suppressing water from contacting a magnetism detection sensor. A brushless motor includes a rotor section that includes a rotor magnet; a stator section that generates a rotational magnetic field with respect to the rotor magnet; a magnetism guide member that guides a portion of magnetism from the rotor magnet; a control unit that includes a circuit substrate and a circuit chamber which is sealed and houses the circuit substrate; and a magnetism detection sensor that is mounted on the circuit substrate inside the circuit chamber and that detects magnetism guided by the magnetism guide member.


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