Moisture permeable device, refrigerator and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-11614274-B2
Application number	US-202117166278-A
Country	US
Kind code	B2
Filing date	Feb 3, 2021
Priority date	Dec 26, 2014
Publication date	Mar 28, 2023
Grant date	Mar 28, 2023

Abstract

A manufacturing method for a moisture permeable device suitable for use in a refrigerator where the device includes a corresponding first surface (110) and second surface (111); at least parts of the first surface (110) and the second surface (111) of the moisture permeable device define a hollow cavity (301); through-holes are provided at regions of the first surface (110) and the second surface (111) of the moisture permeable device defining the cavity (301); and regenerated cellulose is accommodated in the cavity (301) includes the steps of pouring a regenerated cellulose slurry with a tackifier added thereto into the cavity (301) to form a moisture permeable film, thus allowing omission of an assembling procedure and a non-woven support.

First claim

What is claimed is:

1. A manufacturing method of a moisture permeable device, wherein said moisture permeable device comprises a first surface and a second surface corresponding to each other, at least parts of said first surface and said second surface define a hollow cavity, through-holes are provided at regions of said first surface and second surface defining the hollow cavity, and said first surface, said second surface and said hollow cavity of the moisture permeable device are integrally formed by injection moulding, said method comprising the steps of: adding a tackifier into a regenerated fibre slurry; pouring the regenerated fibre slurry into the hollow cavity; and squeezing, drying, and smoothing the first and the second surfaces.

2. The manufacturing method of the moisture permeable device according to claim 1 , wherein said tackifier is high-gluten starch.

3. The manufacturing method of the moisture permeable device according to claim 1 , wherein in the step of pouring the regenerated fibre slurry into the hollow cavity, the moisture permeable device is immersed in the regenerated fibre slurry to enable the regenerated fibre slurry to be naturally poured into the hollow cavity.

4. The manufacturing method of the moisture permeable device according to claim 1 , wherein in the step of pouring the regenerated fibre slurry into the hollow cavity, the regenerated fibre slurry is pressure-injected into the hollow cavity by a syringe.

Assignees

• Haier Smart Home Co Ltd

Inventors

• Wang Aimin
• Ding Enwei
• Li Min
• Zhang Weiying
• Sun Yongsheng
• Tao Ruitao
• Yu Guoxin

Classifications

• F25D2321/147

  characterised by capillary, wick, adsorbent, or evaporation elements · CPC title

• F25D25/02 Primary

  by shelves · CPC title

• B01J20/24

  Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives · CPC title

• B01J20/2805

  Sorbents inside a permeable or porous casing, e.g. inside a container, bag or membrane · CPC title

• B01D39/18

  the material being cellulose or derivatives thereof ({cork or peat B01D39/1646} ; making filter paper D21F11/14) · CPC title