WO2013177928A1 - Crisper and refrigerator adopting same - Google Patents

Abstract

A crisper and a refrigerator adopting same. The crisper comprises a box body (1) and a box cover (2). The box body (1) and the box cover (2) form an enclosable space. Several air holes (2-1) are provided on the box cover (1). A permeable moisture adjustment film (3) is adhered below the air hole (2-1) and is used to form air channels inside and outside the crisper. The crisper is sealed, air resistive, and water and air permeable, and can extend the shelf life of fruit and vegetables in an air-cooling refrigerator with a simple structure and low cost.

Description

 Fruit and vegetable fresh-keeping box and refrigerator using the same

This application claims the priority of the Chinese patent application filed on May 28, 2012, the application number is 201210167450.0, and the invention is entitled "a fruit and vegetable crisper and a refrigerator using the fruit crisper", the entire contents of which are incorporated by reference. Combined in this application.

[Technical Field]

The invention belongs to the technical field of household appliances, and in particular to a fruit and vegetable fresh-keeping box applied in a refrigerator and a refrigerator using the same.

 【Background technique】

One aspect that is important for the preservation of vegetables and fruits is to maintain moisture and minimize water loss. In the environment with high humidity, it is conducive to the preservation of fruits and vegetables. Therefore, the preservation of fruits and vegetables in the refrigerator is to provide a low temperature environment with high humidity for the fruits and vegetables. However, if the fruit and vegetable box in the air-cooled refrigerator is not sealed, the moisture therein is easily taken away by the cooling air, thereby accelerating the dispersion of the water of the fruits and vegetables placed therein, causing air drying and water loss, shortening the fresh-keeping period; if the sealing is strict, The water emitted by the fruit and vegetables gathers in it, and in the low temperature environment, it condenses into water drops on the top cover and the side wall of the fruit and vegetable box, and drops onto the fruit and vegetables, causing the fruit vegetables to rot. At the same time, the fruits and vegetables in storage need to carry out the necessary respiration, maintain basic life activities, absorb oxygen to produce carbon dioxide, and produce gases such as ethylene during the storage of fruits and vegetables. Such gases have ripening effect on fruits and vegetables, which is not conducive to Fruit and vegetable storage. This requires that the fruit and vegetable box of the air-cooled refrigerator must have a certain degree of sealing and wind resistance, and allow a certain amount of water vapor and gas to pass through.

The existing fruit and vegetable box of the air-cooled refrigerator is not well sealed, and the fruit and vegetables are easy to lose water and dry; or the seal is tighter, causing excessive moisture in the fruit and vegetable box, condensing water drops, causing the fruit vegetables to rot. The existing solution is to open some holes in the lid or front end of the fruit box, and the water vapor can pass freely. Due to the poor sealing property, air flow is easily formed, which causes the fruit and vegetables to lose water quickly, which is not conducive to moisturizing and keeping fresh fruits and vegetables.

How to solve the above technical problems is a problem faced by the present invention.

 [Summary of the Invention]

The invention provides a fruit and vegetable fresh-keeping box and a refrigerator using the same, which can solve the problem that the fruit and vegetable box in the existing air-cooled refrigerator can not simultaneously consider the sealing property, the windproof property and the water vapor permeability.

In order to solve the above technical problem, the technical solution of the present invention is

A fruit and vegetable fresh-keeping box comprises a box body and a lid, the box body and the lid form a closable space, the box cover is provided with a plurality of venting holes, and the ventilating hole is affixed with a gas permeable and humidity-control film It is used to form an air flow passage inside and outside the crisper.

The closed connection box and the lid ensure the sealing and windproofness of the fruit and vegetable storage box, because the air-proof and humidity-proof membrane has the characteristics of preventing moisture and water vapor, preventing a large amount of air flow inside and outside the box, preventing a large amount of water loss, and venting at the same time. The humidity control membrane allows the water vapor to pass through, maintains a certain humidity in the fruit and vegetable box, and prevents the water vapor in the fruit and vegetable box from condensing into liquid water, causing the fruit and vegetable to rot, taking into consideration the water vapor permeability, ensuring the moisturizing and preservation of fruits and vegetables; It can also carry out the necessary respiration, because oxygen, carbon dioxide and gases such as ethylene produced during the storage of fruits and vegetables can pass through the gas-permeable and humidity-control membrane, so that the oxygen required by the fruit and vegetables enters the box through the membrane to ensure the normal life of the fruit and vegetables. Activities, while carbon dioxide and ethylene exhaled from fruits and vegetables spread out through the membrane.

Further, the gas permeable and humidity-control membrane adopts a microporous polymer film, and the micropores have a diameter of 0.1 to 2 μm.

The polymer film is selected from the group consisting of polyethylene, polyethersulfone, and polytetrafluoroethylene.

The composite nonwoven fabric on both sides of the gas permeable and humidity-control membrane.

The vapor-permeable humidity-conditioning membrane is a high-molecular polymer film with a large number of micropores, and the size of the micropores is generally less than 2 μm. Since the water vapor molecules are typically about 0.0004 microns in diameter, water molecules can pass through the membrane. The film material may be one of polyethylene (PE) or polyether sulfone (PES) or polytetrafluoroethylene (PTFE); to protect the film, two layers of non-woven fabric may be composited on both sides thereof to improve Its strength and anti-aging properties.

According to the diffusion principle, the water vapor in the crisper can be slowly diffused outside the box through the micropores on the membrane, thereby avoiding the condensation of water vapor in the box to form condensed water; the membrane also has windproof performance, and can block the cooling wind of the air-cooled refrigerator from entering the fruit and vegetables. The box, so as to avoid the formation of direct airflow inside and outside the box, so as to avoid excessive moisture in the box to cause the fruit to dry.

Further, a sliding cover plate for covering the vent hole and adjusting a gas permeable area of the vent hole is provided above the cover, and a bracket for supporting the cover is provided on both sides of the cover The bracket is provided with a card slot, and the sliding cover is embedded in the slot of the bracket and can slide along the bracket.

If more fruit and vegetables are put in the crisper, the fruit will emit more water, and the humidity inside the box will be too high. When the water vapor in the low temperature environment of the refrigerator reaches saturation, it will condense into liquid water and drip onto the fruit and vegetables. Fruit and vegetable rot. The sliding cover can adjust the size of the vent hole according to the number of fruits and vegetables in the box to maintain the proper humidity inside the box and prolong the shelf life of the fruit and vegetables.

Further, the venting holes are arranged in a matrix, and the sliding cover plates are correspondingly arranged as a cover plate of several rectangular structures that are not connected.

Further, in order to protect the lid and enlarge the shelf space, a shelf having a gap with the lid is provided above the lid, and the shelf is made of a hard material.

Further, in order to ensure the sealing between the box body and the cover, the two sides of the opening of the box body and the rear side are provided with a card slot, and the two sides of the lower part of the box cover are provided with support blocks. The support block cooperates with the card slots on both sides and the rear of the opening portion of the casing to close the casing and the cover.

Further, the box body and the lid form a drawer structure, and a sealing strip is disposed at a joint between the front end of the box body and the lid, and a handle is disposed on an outer side of the front end of the box body.

A refrigerator adopting the above-mentioned fruit and vegetable fresh-keeping box.

The cover is embedded and fixed on a corresponding groove or support block on the inner tank of the refrigerator through the brackets on both sides thereof. During use, the box body is pulled out by pulling the handle on the box body, and the fruit and vegetables are taken, similar to the drawer. The structure is very convenient.

Compared with the prior art, the invention has the following advantages and positive effects:

1. The fruit and vegetable fresh-keeping box of the invention realizes the prolongation of the fresh-keeping period of the fruits and vegetables in the air-cooled refrigerator with a relatively simple structure and a low cost;

2. The fruit and vegetable storage box of the invention can not only maintain a certain humidity in the fruit and vegetable box, but also prevent the water vapor in the fruit and vegetable box from condensing into liquid water, causing the fruit vegetables to rot;

3. The size of the venting hole can be adjusted according to the number of fruits and vegetables in the box to maintain the proper humidity inside the box and prolong the fresh-keeping period of the fruit and vegetables;

4. It can not only allow the gas required by the fruit and vegetables to pass, ensure the normal life activities of the fruit vegetables, and allow the gas harmful to the fruit and vegetables to spread out.

 [Description of the Drawings]

Figure 1 is a schematic view showing the structure of the fruit and vegetable fresh-keeping box of the present invention (the box body is not pulled out);

Figure 2 is a schematic view showing the structure of the fruit and vegetable fresh-keeping box of the present invention (box is pulled out);

3 is a bottom view showing the structure of the fruit and vegetable fresh-keeping box of the present invention when it is pulled out;

Figure 4 is a schematic view showing the split structure of the fruit and vegetable fresh-keeping box of the present invention;

The symbols in the figure and their descriptions:

1, box; 1-1, card slot; 2, cover; 2-1, venting holes; 3, breathable humidity control film; 4, sliding cover; 5, bracket; 5-1, card slot; 2, support block; 6, shelf; 7, sealing strip; 8, handle.

 【detailed description】

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

In order to prolong the fresh-keeping period of the fruit and vegetable in the air-cooled refrigerator, the present invention provides a fruit and vegetable fresh-keeping box, which has a vent hole on the lid of the fresh-keeping box, and a breathable moisturizing film on the lower side of the vent hole, and the gas-permeable and humidity-control film is It can allow water vapor molecules to pass through, and allows oxygen molecules and carbon dioxide molecules to pass through. Through the control of the gas-permeable humidity-control membrane, a certain humidity in the crisper can be ensured, and at the same time, a large amount of airflow can be blocked from entering the fruit and vegetable box, thereby avoiding direct formation inside and outside the box. The air flow, so as to avoid the excessive release of moisture in the box, causes the fruit to be air-dried; of course, the micropores on the membrane also allow gas molecules to pass, which can also play a role in the atmosphere inside and outside the balance box. Specifically, as shown in Figure 1,

A fruit and vegetable fresh-keeping box comprises a box body 1 and a lid 2, the box body is similar to a drawer structure, and the box body 1 and the box cover 2 form a closable space;

As shown in FIGS. 3 and 4, the cover 2 is provided with a plurality of venting holes 2-1, and a ventilating and tempering film 3 is attached to the lower side of the venting holes 2-1 for forming an air flow passage inside and outside the crisper.

The gas permeable and humidity-control film 3 is a polymer film having micropores, and the diameter of the micropores is less than 2 μm.

The polymer film is selected from the group consisting of polyethylene, polyethersulfone, and polytetrafluoroethylene.

As shown in FIG. 4, a sliding cover 4 is disposed above the cover 2, and the sliding cover 4 is used to cover the vent hole 2-1, and adjust the ventilation, the venting area of the 2-1, in the cover 2 A bracket 5 for supporting the cover 2 is provided on the side, and the bracket 5 is provided with a slot 5-1, and the sliding cover 4 is embedded in the slot 5-1 of the bracket 5 and is slidable along the bracket 5.

The venting holes 2-1 are arranged in a matrix, and the sliding cover 4 is correspondingly arranged as a cover plate of several rectangular structures which are not connected. The width of the sliding cover 4 is larger than the size of the venting hole and can cover the venting hole, and the sliding sliding plate is moved to change the size of the permeable area of the venting hole, thereby adjusting the water vapor permeable speed. It can be reasonably adjusted according to the number of fruits and vegetables in the box to maintain the proper humidity inside the box and prolong the shelf life of the fruit and vegetables.

In order to protect the cover 2 and enlarge the storage space, a shelf 6 made of a hard material leaving a gap with the cover 2 is provided above the cover 2, and the shelf 6 supports the brackets on both sides of the cover 2 5 above.

The shelf can be tempered glass or other harder material, which can be used as a shelf to protect the translucent moisture-proof membrane on the lid of the fruit vegetable from being damaged. There is a certain gap between the shelf and the lid of the fruit and vegetable box to facilitate air circulation and moisture emission.

The card body 1 is provided with a card slot 1-1 on both sides and the rear side of the opening, and the support block 5-2 is provided on both sides and the rear portion of the lower portion of the cover 2, and the support block 5-2 and the opening portion of the case 1 are provided on both sides. The rear card slot 1-1 cooperates to close the case 1 and the cover 2 to ensure a seal between the case 1 and the cover 2.

The support block 5-2 can be formed in a unitary structure with the bracket 5 on both sides of the cover 2.

A sealing strip 7 is provided at the inner side of the front end of the casing 1 in combination with the lid 2, and when the casing is pushed up and closed, air is prevented from flowing therethrough.

A handle 8 is provided on the outer side of the front end of the casing 1 to facilitate the sliding of the casing 1.

The two sides of the gas permeable and humidity-control membrane 3 can also be combined with a non-woven fabric to improve the strength and anti-aging property.

The gas permeable and humidity-control membrane is a novel polymer membrane, which has the characteristics of preventing wind and water vapor, and can prevent the air in the box from flowing rapidly under the driving of the cooling air to cause the fruit and vegetables to be air-dried, and allows the water vapor in the box to be properly exposed to avoid the inside of the box. Humidity is too large, excessive water vapor condenses into liquid water at low temperature; it can also pass oxygen and carbon dioxide to ensure the normal life activities of fruit vegetables, and allow the gas such as ethylene produced by fruits and vegetables to spread in time, and alleviate the ripening of fruits and vegetables. effect.

The brackets 5 on both sides of the cover can be embedded and fixed on the corresponding grooves or support blocks on the inner casing of the refrigerator. The box body is supported on the inner tank of the refrigerator, and the fruit and vegetables are taken and pulled by pushing and pulling the box body 1 during use.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art may use the above-disclosed technical contents to change or modify the equivalent equivalent. Example. However, any simple modifications, equivalent changes and modifications made to the above embodiments in accordance with the technical spirit of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims (10)

1. A fruit and vegetable fresh-keeping box comprises a box body and a lid, the box body and the lid form a closable space, wherein the lid is provided with a plurality of venting holes, and the venting holes are affixed on the lower side A breathable humidity control film for forming an air flow passage inside and outside the crisper.
2. The fruit and vegetable fresh-keeping container according to claim 1, wherein the gas permeable and humidity-control film is made of a microporous polymer film having a diameter of 0.1 to 2 μm.
3. The fruit and vegetable crisper according to claim 2, wherein the polymer film is one selected from the group consisting of polyethylene, polyethersulfone, and polytetrafluoroethylene.
4. The fruit and vegetable fresh-keeping case according to claim 2, wherein the gas permeable and humidity-control film has a composite nonwoven fabric on both sides.
5. The fruit and vegetable fresh-keeping case according to claim 1, wherein a sliding cover for covering the vent hole and adjusting a gas permeable area of the vent hole is provided above the lid, A bracket for supporting the cover is provided on both sides, and the bracket is provided with a card slot, and the sliding cover is embedded in the slot of the bracket and can slide along the bracket.
6. The fruit and vegetable crisper according to claim 5, wherein the venting holes are arranged in a matrix, and the sliding cover plates are correspondingly arranged in a plurality of rectangular structural cover plates that are not connected.
7. The fruit and vegetable crisper according to claim 1, wherein a shelf having a gap with the lid is disposed above the lid, and the shelf is made of a hard material.
8. The fruit and vegetable fresh-keeping case according to claim 1, wherein the two sides of the opening of the box body and the rear side are provided with a card slot, and the two sides of the lower part of the box cover are provided with support blocks, The support block cooperates with the card slots on both sides and the rear of the opening portion of the casing to close the casing and the cover.
9. The fruit and vegetable crisper according to claim 1, wherein the box body and the lid form a drawer structure, and a front end of the box body and the lid are provided with a sealing strip, and the front end of the box body A handle is provided on the outer side.
10. A refrigerator characterized by using the fruit and vegetable crisper according to any of the preceding claims.

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