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Samsung patents dishwasher that heats water using air heat

Patent drawing
Patent drawing from the official filing.

Samsung describes a dishwasher that uses a thermoelectric module to warm water. This system pulls heat from the surrounding air to raise the water temperature for washing and drying.

Why it mattersThis design could make dishwashers more energy-efficient by using existing room heat instead of only electric resistance.

In the filing’s own words

A dishwasher includes a tub. The tub includes a sump and a sprayer. The dishwasher also includes a water supply coupled to the tub and configured to supply water into the tub, a circulation circuit coupled to the sump and the sprayer and configured to circulate the water from the sump to the sprayer, and a thermoelectric module system coupled to the circulation circuit. The thermoelectric module system includes a first side configured to draw heat from ambient air, and a second side configured to heat the water circulated in the circulation circuit with the heat from the ambient air.

What exactly they claim (claim 1)

1. A dishwasher comprising: a tub comprising a sump and a sprayer; a water supply coupled to the tub and configured to supply water into the tub; a circulation circuit coupled to the sump and the sprayer and configured to circulate the water from the sump to the sprayer; and a thermoelectric module system coupled to the circulation circuit, the thermoelectric module system comprising: a first side configured to draw heat from ambient air; and a second side configured to heat the water circulated in the circulation circuit with the heat from the ambient air.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
DISHWASHERS WITH HYBRID THERMOELECTRIC AND ELECTRIC HEATING SYSTEMS FOR WATER HEATING AND DISH DRYING
Publication number
US20260294205A1
Application number
19084547
Filed
Mar 19, 2025
Published
Oct 1, 2026
Inventors
4
Claims
20

Classified under

A47L 15/4285 Human necessitiesA47L 15/0047 Human necessitiesA47L 15/4219 Human necessitiesA47L 15/4287 Human necessitiesA47L 2501/06 Human necessitiesA47L 2501/34 Human necessities

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.