Oxygen-control freshness preservation refrigerator
US11274877B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2018 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Jun 2, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2317/061
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Disclosed is an oxygen-control freshness preservation refrigerator, comprising a cabinet with a refrigerating compartment and a freezing compartment. A partition plate for separating the refrigerating compartment from the freezing compartment is arranged in the cabinet. The refrigerator further has a freshness preservation compartment arranged inside the refrigerating compartment and an oxygen control device for reducing the oxygen content inside the freshness preservation compartment, the oxygen control device comprises a gas-regulating membrane assembly and a gas extraction assembly. The gas-regulating membrane assembly has at least one gas-regulating membrane for selective gas permeation. The gas extraction assembly has a gas extraction pump arranged in the partition plate; and the gas extraction pump is provided with a gas intake pipe in communication with a gas discharge side of the gas-regulating membrane, and a gas discharge pipe for discharging gas from the gas discharge side of the gas-regulating membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.