Refrigerator
US11885538B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2019 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Sep 28, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2600/06
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A refrigerator comprising a fan to operate for supplying cold air to a cooling chamber; an RF output device disposed in the cooling chamber, and for outputting an RF signal into a cavity in the cooling chamber; and a controller for controlling the RF output device, wherein the controller is configured to output the RF signal to goods in the cavity, and to operate in a first section in which temperature of the goods falls, and a second section in which the temperature of the increases after the first section and maintains, wherein when the RF output device operates, a temperature of the cavity is higher than a temperature of other area in the cooling chamber. Accordingly, the freshness of the goods in the refrigerator can be maintained by using the RF signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.