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Samsung patents fridge top with removable dust filter for cooling fan

Samsung describes a refrigerator design that uses a small fan and heat sink on the top to cool the interior using thermoelectric technology. The top cover holds a removable dust filter that cleans the air before it reaches the fan, featuring a specific frame shape to stop dust from falling into the system when the filter is taken out.

Why it mattersThis is a routine hardware improvement that helps keep the cooling system clean and efficient, which is standard practice for maintaining appliance performance.

In the filing’s own words

A refrigerator including a main body, a thermoelectric element, a heat sink, a heat dissipation fan, a heat dissipation duct, including an outside air inlet and an outside air outlet, to guide air flowing by the heat dissipation fan to exchange heat with the heat sink, a top cover including a filter receiving space, and a dust filter coupleable in and decoupleable from the filter receiving space. The dust filter includes a filter member configured to filter dust from the air and a filter frame configured to support the filter member. The filter frame includes a rear rib protruding upwardly from the filter frame to prevent the dust filtered by the filter member from entering the heat dissipation duct including while the dust filter is decoupled from the filter receiving space.

What exactly they claim (claim 1)

1. A refrigerator, comprising: a main body; a thermoelectric element, to be provided on an upper wall of the main body, including a heat generating portion and a heat absorbing portion; a heat sink in contact with the heat generating portion; a heat dissipation fan configured to generate air flow; a heat dissipation duct, including an outside air inlet and an outside air outlet, configured to be coupled to the upper wall of the main body such that while the heat dissipation duct is coupled to the upper wall of the main body, air guided by the heat dissipation fan flows through the heat dissipation duct to exchange heat with the heat sink; a top cover, including a filter receiving space, to be provided at a position corresponding to a position of the outside air inlet; and a dust filter coupleable in and decoupleable from the filter receiving space, wherein the dust filter comprises: a filter member configured to filter dust from the air, and a filter frame configured to support the filter member, wherein the filter frame comprises a rear rib protruding upwardly from the filter frame to prevent the dust filtered by the filter member from entering the heat dissipation duct based on the dust filter being decoupled from the filter receiving space.

Facts

Company
Samsung (SAMSUNG ELECTRONICS CO., LTD.)
Official title
REFRIGERATOR
Publication number
US20260328467A1
Application number
19707896
Filed
Jun 15, 2026
Published
Oct 22, 2026
Inventors
4
Claims
15

Classified under

F25D 17/065 Mechanical engineeringF25D 17/08 Mechanical engineeringF25D 2300/00 Mechanical engineeringF25D 2323/0024 Mechanical engineering
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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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.