Gas regulating fresh-keeping device, fresh-keeping box and refrigerator

Abstract

This application provides a gas-conditioning preservation device, a food storage box, and a refrigerator. The gas-conditioning preservation device includes: a top cover, a one-way breathable membrane, a base, gas-conditioning material, and a preservation material fixing shell. The one-way breathable membrane is disposed in the cavity of the base, and the top cover is disposed on the base. Ventilation holes are provided on the top cover and the base. The preservation material fixing shell is located in the middle of the base, and the gas-conditioning material is disposed in the cavity of the preservation material fixing shell. A third ventilation hole is provided on the bottom surface of the preservation material fixing shell, and a fourth ventilation hole is provided on the side wall of the preservation material fixing shell. Utilizing the natural convection effect of the one-way breathable membrane, harmful gases are actively removed. The device boasts high gas-conditioning efficiency, replaceable materials, and the ability to replace different preservatives according to the type of food being stored. It has a long service life, does not produce harmful phenomena such as condensation, does not have a negative pressure device, and operates without noise. The device is easy to maintain and consumes no electricity.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerators, and in particular to a gas regulating and fresh-keeping device, a fresh-keeping box and a refrigerator. Background Art

[0002] With the continuous improvement of living standards and dietary structure, people have higher and higher requirements for the freshness of fruits and vegetables and the durability of food preservation. They not only require fruits and vegetables to remain fresh in terms of sensory perception, but also require that the nutrients in fruits and vegetables be retained to the maximum extent.

[0003] Refrigerators have become one of the most important appliances in people's daily lives because they can keep food fresh. Gas-regulated fresh-keeping has also become an increasingly common fresh-keeping technology. Gas-regulated fresh-keeping technology uses a negative pressure device to control the nitrogen, oxygen, carbon dioxide, ethylene and other gases in the refrigerator at a certain ratio for a long time, inhibiting the respiration of fruits and vegetables, making the fruit and vegetable cells dormant, and can significantly extend the shelf life of fruits and vegetables.

[0004] However, traditional gas regulation preservation technologies all have negative pressure devices, which produce great noise and consume a lot of electricity when working. In addition, the gas regulation efficiency is low, and the transpiration of fruits and vegetables in a small space is prone to serious condensation. Summary of the invention

[0005] The present application provides a gas regulating fresh-keeping device, a fresh-keeping box and a refrigerator to solve the problem that traditional gas regulating fresh-keeping technologies all have negative pressure devices, generate great noise and consume a lot of electricity when working, and the gas regulation efficiency is low, and the transpiration of fruits and vegetables in a small space is prone to serious condensation.

[0006] In the first aspect, the present application provides a gas regulating and fresh-keeping device, comprising: an upper cover, a one-way breathable membrane, a base, a gas regulating material and a fresh-keeping material fixing shell, wherein the base is provided with a cavity, the one-way breathable membrane is arranged in the cavity of the base, and the upper cover is arranged on the base; the fresh-keeping material fixing shell is provided in the middle part of the base, the fresh-keeping material fixing shell is provided with a cavity, the cavity of the fresh-keeping material fixing shell is connected with the cavity of the base, and the gas regulating material is arranged in the cavity of the fresh-keeping material fixing shell; the upper cover is provided with a first air hole, the bottom surface of the base is provided with a second air hole, the bottom surface of the fresh-keeping material fixing shell is provided with a third air hole, and the side wall of the fresh-keeping material fixing shell is provided with a fourth air hole.

[0007] Optionally, the first air holes are in the shape of long strips, and the first air holes are arranged in parallel, and the second air holes are in the shape of long strips, and the second air holes are arranged in parallel.

[0008] Optionally, the third air holes are in the shape of circular holes, and the third air holes are arranged in an array, and the fourth air holes are in the shape of long strips, and the fourth air holes are arranged in parallel.

[0009] Optionally, the gas regulating material is a preservative.

[0010] Optionally, the gas regulating material is placed in a breathable package.

[0011] Optionally, the upper cover is snap-connected to the base.

[0012] Optionally, the one-way breathable membrane is breathable in a direction from the bottom surface of the base toward the upper cover.

[0013] In a second aspect, the present application further provides a fresh-keeping box, comprising: a box body and a gas regulating fresh-keeping device as described in the first aspect, wherein the gas regulating fresh-keeping device is arranged on the box body.

[0014] Optionally, the gas regulating and fresh-keeping device and the box body form a closed space.

[0015] In a third aspect, the present application further provides a refrigerator, comprising: a fresh-keeping box as described in the second aspect.

[0016] Compared with the prior art, this application has the following beneficial effects:

[0017] The present application provides a gas regulating fresh-keeping device, a fresh-keeping box and a refrigerator, wherein the gas regulating fresh-keeping device comprises: an upper cover, a one-way breathable membrane, a base, a gas regulating material and a fresh-keeping material fixing shell, wherein the base is a rectangular parallelepiped, the base is provided with a cavity, the one-way breathable membrane is arranged in the cavity of the base, and the upper cover is arranged on the base. The upper cover is provided with a first air hole, and the bottom surface of the base is provided with a second air hole. The fresh-keeping material fixing shell is provided in the middle part of the base, the fresh-keeping material fixing shell is provided with a cavity, the cavity of the fresh-keeping material fixing shell is connected with the cavity of the base, and the gas regulating material is arranged in the cavity of the fresh-keeping material fixing shell; the bottom surface of the fresh-keeping material fixing shell is provided with a third air hole, and the side wall of the fresh-keeping material fixing shell is provided with a fourth air hole. The natural convection of the one-way breathable membrane is used to actively remove harmful gases. The gas regulation efficiency is high, the materials can be replaced at any time, and different preservatives can be replaced according to the different types of food stored. It has a long service life and will not produce harmful phenomena such as condensation. It does not have a negative pressure device and is noiseless. The device is easy to maintain in the later stage and does not consume electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 This is a schematic diagram of the structure of a gas regulating and fresh-keeping device described in this application;

[0020] Figure 2 This is a schematic diagram of the back side of a gas regulating and fresh-keeping device described in the present application;

[0021] Figure 3 A cross-sectional schematic diagram of a gas regulating and fresh-keeping device described in the present application;

[0022] Figure 4 This is a schematic diagram of the structure of the fresh-keeping material fixing shell described in this application;

[0023] Figure 5 This is a schematic structural diagram of a refrigerator described in this application.

[0024] Illustration Description:

[0025] Among them, 1-refrigerating chamber, 2-refrigerating chamber door, 3-box body, 4-gas regulating and fresh-keeping device, 41-upper cover, 411-first air hole, 42-one-way air permeable membrane, 43-base, 431-second air hole, 44-gas regulating material, 45-fresh-keeping material fixing shell, 451-third air hole, 452-fourth air hole. DETAILED DESCRIPTION

[0026] The following embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following embodiments do not represent all implementations consistent with the present application. They are only examples of systems and methods consistent with some aspects of the present application as detailed in the claims.

[0027] The present application provides a gas regulating fresh-keeping device, such as Figure 1 As shown, it includes: an upper cover 41, a one-way air permeable membrane 42, a base 43, a gas regulating material 44 and a fresh-keeping material fixing shell 45, wherein the base 43 is provided with a cavity, the one-way air permeable membrane 42 is arranged in the cavity of the base 43, and the upper cover 41 is arranged on the base 43. The upper cover 41 is provided with a first air permeable hole 411, and the bottom surface of the base 43 is provided with a second air permeable hole 431.

[0028] The base 43 may be a rectangular parallelepiped, and the upper cover 41 is used to cover the base 43. In an exemplary embodiment, the upper cover 41 is snap-fitted to the base 43, and the snap-fitting method allows the upper cover 41 and the base 43 to be easily disassembled. The upper cover 41 and the base 43 form a closed cavity, and the one-way air-permeable membrane 42 is disposed in the cavity, and the one-way air-permeable membrane 42 allows gas to pass only in one direction.

[0029] In an illustrative embodiment, the one-way air permeable film 42 is ventilated from the bottom surface of the base 43 to the upper cover 41. In this way, when the gas regulating and fresh-keeping device is installed on the box body 3, the one-way air permeable film 42 forms a unique passage inside the entire box body 3 that can ventilate from the inside of the box body 3 to the outside. When fruits and vegetables are stored inside the box body 3, gases such as ethylene, water vapor, and carbon dioxide generated by the respiration of fruits and vegetables will spontaneously move to the outside of the box body 3 due to the pressure difference.

[0030] The first air holes 411 and the second air holes 431 are used for gas to pass through. In an exemplary embodiment, the first air holes 411 are in the shape of long strips and arranged in parallel, and the second air holes 431 are in the shape of long strips and arranged in parallel. Gases such as ethylene, water vapor, and carbon dioxide generated by the respiration of fruits and vegetables will spontaneously enter from the second air holes 431 due to the pressure difference, pass through the one-way air permeable membrane 42, and be discharged from the first air holes 411. The first air holes 411 are arranged in parallel with the wide side direction of the rectangular parallelepiped of the base 43, and the second air holes 431 are arranged in parallel with the long side direction of the rectangular parallelepiped of the base 43, so that gases such as ethylene, water vapor, and carbon dioxide generated by the respiration of fruits and vegetables can pass through the one-way air permeable membrane 42 more easily.

[0031] like Figure 2 As shown, the center of the base 43 is provided with the fresh-keeping material fixing shell 45, and the fresh-keeping material fixing shell 45 is provided with a cavity, such as Figure 3 As shown, the cavity of the fresh-keeping material fixing shell 45 is connected to the cavity of the base 43, and the gas regulating material 44 is arranged in the cavity of the fresh-keeping material fixing shell 45; Figure 4 As shown, a third air hole 451 is provided on the bottom surface of the fresh-keeping material fixing shell 45 , and a fourth air hole 452 is provided on the side wall of the fresh-keeping material fixing shell 45 .

[0032] The fresh-keeping material fixing shell 45 can be a rectangular parallelepiped, and the base 43 and the fresh-keeping material fixing shell 45 can be manufactured in an integrally formed manner. The fresh-keeping material fixing shell 45 is used to store the gas regulating material 44. The gas regulating material 44 is a composite material composed of one or more components that can react chemically / physically with oxygen, carbon dioxide, and ethylene. In an illustrative embodiment, the gas regulating material 44 is a preservative. The gas regulating material 44 is placed in a breathable package. The preservative can absorb and decompose harmful gases through the third air hole 451 and the fourth air hole 452. The gas regulation efficiency is high, the material can be replaced at any time, and different preservatives can be replaced according to different types of stored food.

[0033] For example, the preservative can be tea polyphenols, which are polyolefin organic compounds extracted from tea leaves, and the main components are catechins and their derivatives. Its antibacterial mechanism is that the hydrogen donors unique to the phenolic olefins in the molecular structure can combine with the free radicals produced by fatty acids in the auto-oxidation process, interrupt the chain reaction of fatty acid oxidation, inhibit the formation of its oxides, and achieve the purpose of anti-oxidation and preservation. The antioxidant capacity of tea polyphenols is 10 times higher than that of VE, and it is safe and non-toxic, and can be widely used in the food preservation industry. Tea polyphenols can inhibit the bacterial reproduction of fruits and vegetables during storage and preservation, maintain color, and have oxygen supply activity due to the presence of multiple phenolic olefins. The preservative can also be propolis extract, which is a resin collected by bees from plant buds and trunks, and mixed with the secretion of the forehead gland and beeswax to make a colloidal solid with an aromatic smell. Propolis contains a large amount of active reducing factors and has strong antioxidant properties. Propolis can be used as a natural food additive to improve the taste and color of food. It can also be used as a food functional enhancer to enhance the health benefits of food. In addition, propolis can form an extremely thin film on the surface of the food being preserved, which plays a role in blocking oxygen, hindering microorganisms, reducing water evaporation and nutrient loss, thereby extending the shelf life of food and preventing corruption and deterioration. Preservatives can also use protamine, which is an alkaline protein present in mature sperm cells of many fish. It has a broad-spectrum inhibitory activity and can inhibit the growth of Bacillus subtilis, Bacillus megaterium, Bacillus licheniformis, etc. It also has a significant inhibitory effect on Gram-positive bacteria, yeasts, and molds. It can also effectively inhibit the development of Clostridium botulinum. It is widely used in foods such as milk, eggs, and pudding.

[0034] In an exemplary embodiment, the third air holes 451 are circular holes, arranged in an array, and the fourth air holes 452 are strips, arranged in parallel. This arrangement allows the gas regulating material 44 to better adsorb and decompose harmful gases.

[0035] Based on the gas regulating fresh-keeping device described in the above embodiment, some embodiments of the present application also provide a fresh-keeping box, such as Figure 5 As shown, it includes: a box body 3 and a gas regulating fresh-keeping device 4 as mentioned above, and the gas regulating fresh-keeping device 4 is arranged on the box body 3. The gas regulating fresh-keeping device and the box body 3 form a closed space. Fruits and vegetables can be stored in the box body 3. When the gas regulating fresh-keeping device 4 is installed on a certain vertical surface of the box body 3, since the one-way air permeable membrane 42 is designed to have one-way air permeability, it is the only one-way air permeable channel of the entire box body 3 from the inside to the outside. When fruits and vegetables are stored inside the box body 3, the gases such as ethylene, water vapor, and carbon dioxide generated by the respiration of fruits and vegetables will spontaneously move to the outside of the box body 3 due to the pressure difference. The gas is sucked in from the third air permeable hole 451 and the fourth air permeable hole 452, and after being adsorbed and decomposed by contacting the gas regulating material 44, it enters the position of the one-way air permeable membrane 42 from the second air permeable hole 431, and then is released into the refrigerating chamber 1 through the first air permeable hole 411 and taken away by wind circulation.

[0036] Based on the fresh-keeping box described in the above embodiment, some embodiments of the present application also provide a refrigerator, such as Figure 5 As shown, it includes: a fresh-keeping box as mentioned above. The box body 3 is arranged in the refrigerator 1, and the refrigerator 1 is also provided with a refrigerator door 2. When the refrigerator door 2 is closed, the refrigerator 1 will have wind circulation to maintain constant temperature fluctuations and humidity fluctuations. Since the box body 3 is a closed space, there is no high-speed cold wind blowing inside, and constant temperature fluctuations and humidity fluctuations can always be maintained. The temperature fluctuation is less than ±0.8℃, and the humidity fluctuation is less than ±1%Rh. The average humidity can be between 90%Rh-95%RH, which is very suitable for storing fruits and vegetables. Under the action of the gas regulating fresh-keeping device 4, a comprehensive function of constant temperature and humidity and gas-conditioned fresh-keeping is formed.

[0037] The present application provides a gas regulating fresh-keeping device, a fresh-keeping box and a refrigerator, wherein the gas regulating fresh-keeping device comprises: an upper cover 41, a one-way air-permeable membrane 42, a base 43, a gas regulating material 44 and a fresh-keeping material fixing shell 45, wherein the base 43 is a rectangular parallelepiped, the base 43 is provided with a cavity, the one-way air-permeable membrane 42 is arranged in the cavity of the base 43, and the upper cover 41 is arranged on the base 43. The upper cover 41 is provided with a first air hole 411, and the bottom surface of the base 43 is provided with a second air hole 431. The fresh-keeping material fixing shell 45 is provided in the middle of the base 43. The fresh-keeping material fixing shell 45 is provided with a cavity. The cavity of the fresh-keeping material fixing shell 45 is connected with the cavity of the base 43. The gas regulating material 44 is arranged in the cavity of the fresh-keeping material fixing shell 45. The bottom surface of the fresh-keeping material fixing shell 45 is provided with a third air hole 451, and the side wall of the fresh-keeping material fixing shell 45 is provided with a fourth air hole 452. The natural convection effect of the one-way air permeable membrane 42 is used to actively remove harmful gases. The gas regulation efficiency is high, the material can be replaced at any time, and different preservatives can be replaced according to the different types of stored food; the service life is long; no harmful phenomena such as condensation will be generated; there is no negative pressure device, no noise; the device is easy to maintain in the later stage and does not consume electricity.

[0038] Similar parts between the embodiments provided in this application can be referenced to each other. The specific implementation methods provided above are only a few examples under the general concept of this application and do not constitute a limitation on the protection scope of this application. For those skilled in the art, any other implementation methods expanded based on the scheme of this application without creative work belong to the protection scope of this application.

Claims

1. A gas regulating fresh-keeping device, characterized in that: include: An upper cover (41), a one-way air permeable membrane (42), a base (43), a gas regulating material (44) and a fresh-keeping material fixing shell (45), wherein: The base (43) is provided with a cavity, the one-way air-permeable membrane (42) is arranged in the cavity of the base (43), and the upper cover (41) is arranged on the base (43); The fresh-keeping material fixing shell (45) is provided in the middle of the base (43), the fresh-keeping material fixing shell (45) is provided with a cavity, the cavity of the fresh-keeping material fixing shell (45) is connected with the cavity of the base (43), and the gas regulating material (44) is arranged in the cavity of the fresh-keeping material fixing shell (45); The upper cover (41) is provided with a first air hole (411), the bottom surface of the base (43) is provided with a second air hole (431), the bottom surface of the fresh-keeping material fixing shell (45) is provided with a third air hole (451), and the side wall of the fresh-keeping material fixing shell (45) is provided with a fourth air hole (452); The one-way air permeable membrane (42) is ventilated in a direction from the bottom surface of the base (43) towards the upper cover (41).

2. A gas regulating and fresh-keeping device according to claim 1, characterized in that: The first air holes (411) are in the shape of long strips, and the first air holes (411) are arranged in parallel; the second air holes (431) are in the shape of long strips, and the second air holes (431) are arranged in parallel.

3. The gas regulating and fresh-keeping device according to claim 1, characterized in that: The third air holes (451) are in the shape of circular holes and are arranged in an array. The fourth air holes (452) are in the shape of long strips and are arranged in parallel.

4. The gas regulating and fresh-keeping device according to claim 1, characterized in that: The gas regulating material (44) is a preservative.

5. A gas regulating and fresh-keeping device according to claim 4, characterized in that: The gas regulating material (44) is placed in a gas permeable package.

6. The gas regulating and fresh-keeping device according to claim 1, characterized in that: The upper cover (41) is snap-fitted onto the base (43).

7. A fresh-keeping box, characterized in that: include: A box body (3) and a gas regulating and fresh-keeping device according to any one of claims 1 to 6, wherein the gas regulating and fresh-keeping device is arranged on the box body (3).

8. A fresh-keeping box according to claim 7, characterized in that: The gas regulating and fresh-keeping device and the box body (3) form a closed space.

9. A refrigerator, characterized in that: include: A fresh-keeping box as described in any one of claims 7-8.

Images