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:
Feb. 13, 2018

Filed:

Oct. 17, 2013
Applicant:

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

Inventors:

Yukio Nakashima, Tokyo, JP;

Takayoshi Miki, Tokyo, JP;

Hisanori Yamasaki, Tokyo, JP;

Assignee:

MITSUBISHI ELECTRIC CORPORATION, Chiyoda-Ku, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/44 (2007.01); H02M 7/00 (2006.01); H02M 7/42 (2006.01); H05K 7/20 (2006.01); H01F 17/06 (2006.01);
U.S. Cl.
CPC ...
H02M 1/44 (2013.01); H02M 7/003 (2013.01); H02M 7/42 (2013.01); H05K 7/209 (2013.01); H01F 2017/065 (2013.01);
Abstract

To reduce radiation noise generated when a semiconductor device in a power unit performs switching, a core is provided outside the power unit. The closer the core is disposed to the semiconductor device that is generating the radiation noise, the greater the effect of reducing the radiation noise is obtained. However, since there has been no space to provide the core inside the power unit, there has been a limitation in the reduction of radiation noise. The invention provides a power unit including a core in the interior thereof. In order to install a first core inside the power unit, a first output-side conductor bar, a second output-side conductor bar, and a third output-side conductor bar are connected to an output of an inverter include a first bundle portion. The first bundle portion passes through a first penetrating opening of the first core provided inside the power unit.


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