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:
Dec. 16, 2025

Filed:

Mar. 29, 2023
Applicant:

Sekisui House, Ltd., Osaka, JP;

Inventor:

Motoyoshi Karube, Osaka, JP;

Assignee:

SEKISUI HOUSE, LTD., Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 3/00 (2006.01); H02J 3/38 (2006.01);
U.S. Cl.
CPC ...
H02J 3/0075 (2020.01); H02J 3/001 (2020.01); H02J 3/38 (2013.01); H02J 2300/24 (2020.01); H02J 2300/30 (2020.01);
Abstract

An electric power supply system includes: a first electric power supply part that utilizes a commercial electric power supply source; a second electric power supply part that utilizes a vehicle battery or other supply source; a third electric power supply part that utilizes a fuel cell; a fourth electric power supply part that utilizes photovoltaic electric power generation; a first electric power supply line for supplying electric power to an important appliance group; a second electric power supply line for supplying electric power to a general appliance group; and a distribution board. The distribution board includes: a first switch to switch over the first electric power supply part and the second electric power supply part at an input; a second switch to switch over the third electric power supply part and an output of the first switch at an input, the second switch having an output connected to the first electric power supply line; and a third switch to switch over the fourth electric power supply part and the output of the first switch at an input, the third switch having an output connected to the second electric power supply line.


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