Refrigerating and freezing device

Patent metadata

Field	Value
Publication number	US-11549739-B2
Application number	US-201816959019-A
Country	US
Kind code	B2
Filing date	Dec 12, 2018
Priority date	Dec 29, 2017
Publication date	Jan 10, 2023
Grant date	Jan 10, 2023

Abstract

A refrigerating and freezing device, the refrigerating and freezing device including: a casing, including an inner container, a housing, and a heat preservation layer, wherein a storage space is disposed in the inner container, a storage container is disposed in the storage space, and the storage container has a controlled atmosphere fresh-keeping space therein; and a controlled atmosphere membrane component, configured to allow more oxygen gas in an airflow in a space around the controlled atmosphere membrane component than nitrogen gas in the airflow in the space around the controlled atmosphere membrane component to pass through a controlled atmosphere membrane to enter an oxygen gas-enriched collecting cavity. The storage space is composed of a top cover and a bottom box, a lower surface of the top cover is provided with a concave cavity, and the controlled atmosphere membrane component is disposed in the concave cavity.

First claim

The invention claimed is:

1. A refrigerating and freezing device, comprising:
a casing, wherein a storage space is defined in the casing, a storage container is disposed in the storage space, and the storage container comprises a controlled atmosphere fresh-keeping space therein, the storage container comprising:
a top cover, wherein a lower surface of the top cover is provided with a concave cavity; and
a bottom box, disposed below the top cover, and forming the controlled atmosphere fresh-keeping space together with the top cover; and
a controlled atmosphere membrane component, disposed inside the concave cavity, wherein the controlled atmosphere membrane component comprises at least one controlled atmosphere membrane and an oxygen gas-enriched collecting cavity, a space inside the concave cavity and around the controlled atmosphere membrane component communicates with the controlled atmosphere fresh-keeping space, and the controlled atmosphere membrane component is configured to allow more oxygen gas in an airflow in the space around the controlled atmosphere membrane component than nitrogen gas in the airflow in the space around the controlled atmosphere membrane component to pass through the controlled atmosphere membrane to enter the oxygen gas-enriched collecting cavity.

2. The refrigerating and freezing device according to claim 1 , wherein
the top cover comprises a concave cavity top plate forming a top surface of the concave cavity, and the concave cavity top plate is made of a stainless steel plate.

3. The refrigerating and freezing device according to claim 1 , wherein
an edge of the top cover is provided with a plurality of buckles, an edge of the bottom box facing the top cover is correspondingly provided with a plurality of protrusions, and each of the protrusions is inserted into the corresponding buckle to achieve snap fit assembling of the top cover and the bottom box.

4. The refrigerating and freezing device according to claim 1 , wherein
the storage container is a storage drawer, and a front side surface of the bottom box is provided with a drawer opening, and the storage drawer further comprising:
a drawing portion, capable of being pushed into an inside of the bottom box or drawn out of the inside of the bottom box to open or close the controlled atmosphere fresh-keeping space.

5. The refrigerating and freezing device according to claim 1 , wherein the storage container further comprises:
a sealing strip, disposed between joint edges of the top cover and the bottom box to seal a gap between the top cover and the bottom box.

6. The refrigerating and freezing device according to claim 1 , wherein
the controlled atmosphere membrane component further comprises a support framework having a first surface and a second surface parallel to each other, a plurality of airflow passages respectively extending on the first surface, extending on the second surface, and penetrating through the support framework to communicate the first surface and the second surface are formed in the support framework, and the plurality of airflow passages together form the oxygen gas-enriched collecting cavity; and
the at least one controlled atmosphere membrane is two planar controlled atmosphere membranes respectively laid on the first surface and the second surface of the support framework.

7. The refrigerating and freezing device according to claim 1 , wherein the storage container further comprises:
a concave cavity bottom plate, detachably disposed at an opening of the concave cavity, and configured to partially close the concave cavity and support the controlled atmosphere membrane component.

8. The refrigerating and freezing device according to claim 7 , wherein
the concave cavity bottom plate is provided with a plurality of air holes such that the controlled atmosphere membrane component communicates with the controlled atmosphere fresh-keeping space.

9. The refrigerating and freezing device according to claim 1 , further comprising:
an air extracting device, wherein the air extracting device comprises an air extracting pump, and is configured to extract gas penetrating into the oxygen gas-enriched collecting cavity to an outside of the storage container, and enable gas flowing out of the oxygen gas-enriched collecting cavity to firstly perform heat exchange with a pump casing of the air extracting pump and then enter the air extracting pump, or enable the gas flowing out of the oxygen gas-enriched collecting cavity to firstly enter the air extracting pump and flow out of the air extracting pump and then perform heat exchange with the pump casing of the air extracting pump.

10. The refrigerating and freezing device according to claim 9 , wherein
the air extracting device further comprises a seal box to accommodate the air extracting pump; and
an air extracting opening of the air extracting pump communicates to a vent port of the oxygen gas-enriched collecting cavity via an air extracting pipeline, and a vent port of the air extracting pump communicates with an inner space of the seal box; and
a gas discharge pipeline communicating with the inner space of the seal box is disposed on the seal box.

11. The refrigerating and freezing device according to claim 10 , wherein
the casing comprises an inner container, a housing disposed on an outer side of the inner container, and a heat preservation layer located between the inner container and the housing; a storage space is defined in the inner container; and
the air extracting device is disposed in the heat preservation layer between the inner container and the housing.

Assignees

• Haier Smart Home Co Ltd

Inventors

• Wang Lei
• Jiang Bo
• Yang Chun
• Lou Xicai

Classifications

• F25D2317/04131

  Control means therefor · CPC title

• F25D17/042 Primary

  Air treating means within refrigerated spaces (air conditioning in general F24F) · CPC title

• F25D2317/04111

  Control means therefor · CPC title

• F25D2317/061

  through special compartments · CPC title

• F25D23/12

  Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove · CPC title