Air-cooled refrigerator and air duct shielding device thereof
US12130070B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 18, 2020 |
| Grant date | Oct 29, 2024 |
| Priority date | — |
| Expiry date | Aug 15, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2317/0683
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention discloses an air duct shielding device and an air-cooled refrigerator; the air duct shielding device includes: a fan base having a plurality of air outlets; a first adjusting part having a rotary disc portion and a plurality of first shielding sheets arranged at intervals, the first adjusting part being configured to controllably rotate around an axis of the rotary disc portion; and a second adjusting part provided between the first adjusting part and the fan base, the second adjusting part having a plurality of second shielding sheets arranged at intervals; wherein when the first adjusting part rotates around the axis of the rotary disc portion, the second adjusting part is driven to rotate, such that the first shielding sheet and/or the second shielding sheet completely shield(s), partially shield(s) or completely expose(s) each air outlet, thereby adjusting an air outlet area of each of the plural air outlets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.