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.
Patent No.:
Date of Patent:
Dec. 29, 2020
Filed:
Sep. 21, 2017
Applicant:
Fanuc Corporation, Yamanashi, JP;
Inventors:
Takeshi Sawada, Yamanashi, JP;
Fuyuki Ueno, Yamanashi, JP;
Assignee:
FANUC CORPORATION, Yamanashi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 7/20 (2006.01); G06F 1/20 (2006.01); H02K 9/04 (2006.01); H02K 9/26 (2006.01); F21V 29/67 (2015.01); G03B 21/16 (2006.01);
U.S. Cl.
CPC ...
H05K 7/20909 (2013.01); F21V 29/677 (2015.01); G03B 21/16 (2013.01); G06F 1/20 (2013.01); H02K 9/04 (2013.01); H02K 9/26 (2013.01); H05K 7/202 (2013.01); H05K 7/2059 (2013.01); H05K 7/20136 (2013.01); H05K 7/20145 (2013.01); H05K 7/20154 (2013.01); H05K 7/20172 (2013.01); H05K 7/20718 (2013.01); H05K 7/20745 (2013.01); H05K 7/20827 (2013.01); H05K 7/206 (2013.01); H05K 7/20336 (2013.01);
Abstract
A cooling device includes a fan for blowing air to a control board arranged on the downstream side by rotation of a rotator. The cooling device further includes a bypass structure provided so as to avoid the rotator and configured to oil liquid to flow, at least, from the upstream side of the fan to the downstream side of the fan, and a gutter provided on the upstream side of the fan to lead the oil liquid to the bypass structure.