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. 21, 2018

Filed:

Jun. 03, 2015
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Naoya Hashii, Tokyo, JP;

Naoki Honishi, Tokyo, JP;

Kohei Ando, Tokyo, JP;

Assignee:

Mitsubishi Electric Corporation, Chiyoda-ku, Tokyo, JP;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 5/06 (2006.01); H05K 5/02 (2006.01);
U.S. Cl.
CPC ...
H05K 5/069 (2013.01); H05K 5/0247 (2013.01);
Abstract

It is structured that plural service holes are provided on a surface of the casing, that a flange of a rubber plug for sealing the service hole has a lip seal that abuts against the casing of the power conversion equipment, that the rubber plug has a recessed section, that the surface of the casing is provided with a rib on an outer circumference side of the flange of the rubber plug, that an end surface of the rib is orthogonal to an axis of the service hole, and that a relationship of hhis established when a distance from an abutment surface of the lip seal to an end surface of the rubber plug on a side with the recessed section is set as hand a distance from the abutment surface of the lip seal to the end surface of the rib is set as h


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