JPS6315068A - Refrigerator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a refrigerator equipped with a vegetable container.

Conventional Technology A conventional example will be explained based on FIG. 8. 1 is a refrigerator main body, 2 is a compressor that compresses refrigerant, 3 is a condenser that condenses the refrigerant compressed by the compressor 2 at a predetermined temperature, 4 is a cooler in which the condensed refrigerant evaporates at a predetermined temperature; 5 is a fan that blows cold air cooled by the cooler 4 into the refrigerator; 6 is a freezer compartment provided in the upper part of the refrigerator body 1; 7 is a 8 is a lower storage compartment of the refrigerator compartment provided in the lower part of the refrigerator main body 1; 9 and 10 are a partition plate and a middle compartment that divide the refrigerator compartment into an upper storage compartment 7 and a lower storage compartment 8; It is a partition. 11 is a vegetable container with an open top for storing vegetables and the like in the lower storage chamber 8; 12 is a lower storage chamber door that can be pulled out from the front; 13
is a frame fixed to the lower storage chamber door 12 and holding the vegetable container 11. With the above configuration, a refrigeration cycle consisting of a compressor 2, a condenser 3, and a cooler 4 and a fan 1
5 cools the freezing chamber 6 and the upper and lower storage chambers 7 and 8 to a predetermined temperature. Now, if we pay attention to the lower storage chamber 8,
The vegetable container 11 is cooled by cold air sent from the upper storage chamber 7 through the rear, lower part, and front of the vegetable container 11, and is used to dry the vegetables stored in the vegetable container 11.
That is, in order to prevent moisture from evaporating, a shield plate 9a provided at the rear of the partition plate 9 prevents cold air from entering the vegetable container 11 so that the vegetables are not exposed to cold air directly.

Problems to be Solved by the Invention However, according to the above configuration, cooling of the vegetable container 11 is inefficient because cold air is passed around the vegetable container 11, and the inside of the vegetable container 11 is cooled. In order to cool to a predetermined temperature, usually 4°C to 5°C, a large amount of cold air sent from the upper storage chamber and a strong wind speed are required. Due to this, the rear part of the vegetable container 11 and the blocking plate 9 of the partition plate 9
There is a problem in that cold air enters from the gap between the vegetable container 11 and the vegetable container 11 and from both sides of the vegetable container 11 and carries away the moisture that evaporates from the vegetables stored in the vegetable container 11, causing the vegetables to dry in a short period of time. Ta. Furthermore, since the amount of cold air used to cool the vegetable container 11 increases, a problem arises in that the upper storage chamber 7 becomes too cold. In addition, since the area around the vegetable container 11, especially the back side, is extremely cooled, the vegetable container 11
This has the drawback that dew condensation occurs on the inner surface, and the water drops fall, stay on the bottom surface of the vegetable container 11, and come into contact with the vegetables, causing the stored items to rot.

SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks, an object of the present invention is to provide a refrigerator that prevents stored items such as vegetables from drying out and spoilage caused by condensation, and also maintains a predetermined temperature in an upper storage chamber and a lower storage chamber. That is.

Means for Solving the Problems In order to achieve the above object, the present invention includes a vegetable container that is movable back and forth, a lid that substantially seals the top surface of the vegetable container, a moisture permeable membrane held on the lid, A space is provided between the lid and the partition plate that divides the refrigerator compartment into upper and lower storage compartments, and a blocking plate is further provided that faces the back surface of the vegetable container and extends to the vicinity of the bottom of the vegetable container. be.

Function The present invention has the above-mentioned structure, and prevents the vegetables from drying out by sealing the top surface of the vegetable container with the lid and keeping the inside of the container at high humidity to prevent moisture evaporating from the vegetables, especially leafy vegetables. By introducing cold air between the body and the partition plate, the vegetable container can be cooled from the top surface of the vegetable container, so that the vegetable container can be maintained at a specified temperature with a small amount of air flow. In addition to preventing condensation inside the vegetable container due to local cooling, the moisture-permeable membrane keeps the humidity inside the container constant and moderately prevents vegetables from drying out, allowing vegetables to be stored for a long time. be.

EXAMPLE An example of the present invention will be described below with reference to the drawings. Incidentally, the same parts as those in the prior art are given the same reference numerals, and the description thereof will be omitted.

14 is a partition plate, and 15 is a lid body formed by the inner box 16 and held by the receiver part 16a, which is attached to the top surface of the vegetable container 17 while maintaining a space therebetween. ing. Reference numeral 18 denotes a blocking plate having a locking portion 18a fitted into and fixed to a protrusion 16b formed on the inner box 16, and extending to the vicinity of the lower portion facing the back surface of the vegetable container 17. This shielding plate 18 prevents the cold air sent from the upper storage chamber 7 from directly hitting the back surface of the vegetable container 17, thereby preventing extreme cooling of the vegetable container 17. The lid 15 is composed of a flat plate 19 made of resin and having a large number of through holes 19a, and a moisture permeable membrane 20 welded to one side of the flat plate 19. 21 is a bottom plate attached to the bottom inside the vegetable container 17.

Here, the moisture permeable membrane 2o will be explained. The moisture permeable membrane 2
0 is silicon thin film 20 a and hydrophilic nylon fiber 20
b, and the silicon thin film 20a has a thickness of approximately 10 to 5
It is made up of mostly amorphous chain-like molecular aggregates with a film thickness of about 0μ, and these cotton-like molecules completely shut out liquids and provide gas permeability depending on the molecular spacing of 10 to 105 μm. It is something. In other words, water vapor, air, and carbon dioxide gas can permeate through the membrane if there is a difference in concentration between the inside and outside of the membrane. Further, the reason for using the hydrophilic nylon fiber 2ob is to prevent dew condensation.

With the above structure, the lid body 15 is in close contact with the upper surface of the vegetable container 17, and cold air does not directly enter into the vegetable container 17, and the vegetables are absorbed by the moisture evaporated from the vegetables stored in the vegetable container 17. The inside of the container 17 is kept at high humidity and the vegetables can be prevented from drying out. Furthermore, as shown in FIG. 6, the moisture above the saturation humidity is removed by the moisture permeable membrane 2o from the upper surface of the lid 15, which has a lower humidity, through the moisture permeable membrane 20 on the surface of the lid 15, which is most likely to be cooled by the cold air hitting the upper surface. The moisture permeates gradually as shown by the arrow.

According to experimental results, by selecting an appropriate moisture permeability of the moisture permeable membrane 2o, the inside of the vegetable container 17 can be maintained at a humidity of 80 to 95% RH, which is said to be suitable for preserving vegetables. . Therefore, it is possible to prevent an abnormal situation in which a large amount of vegetables are stored in the vegetable container 17 and the humidity inside the vegetable container 17 becomes abnormally high, causing dew condensation and water droplets of the condensation to adhere to the vegetables and promote rotting of the vegetables.

Furthermore, the cold air sent from the upper storage chamber 7 is passed through the upper surface of the vegetable container 17, that is, the upper surface of the lid 15 where no condensation occurs due to the action of the moisture permeable membrane 2o.
can be actively cooled from the top surface of the vegetable container 17, and the amount of cold air from the upper storage chamber 7 is smaller than in the past. There is no such problem, and the blocking plate 18 provided opposite to the back of the vegetable container 17 allows
The condensation on the inner surface of the vegetable container 17 that had been occurring due to the cooling of the extreme part on the back side of the vegetable container 17 also disappears. Further, the locking portion 18a of the blocking plate 18 allows the distance between the inner box 16 and the blocking plate 18 to be kept constant, and the air passage on the back side of the vegetable container 17 can be ensured.

Effects of the Invention As described above, the present invention provides a lid that is in close contact with the top surface of the vegetable container, and allows cold air coming from the upper storage compartment to be passed between the lid and the partition plate that divides the refrigerator compartment into upper and lower storage compartments. °Since it is a flow-through device, the vegetable container can be cooled by passing cold air around the container and through the top surface where no condensation occurs due to the moisture-permeable membrane, making it possible to maintain the inside of the vegetable container at a predetermined temperature with a small amount of airflow. In addition, a shielding plate that faces the back of the vegetable container and extends to the vicinity of the bottom of the vegetable container leads cold air to the bottom of the vegetable container, causing the extreme cooling of the back of the vegetable container to disappear. Prevents condensation on the inner surface.

In addition, the problem of excessive cooling in the upper storage compartment, which occurs due to a large amount of cold air, is also eliminated. Furthermore, the vegetable container can be sealed with a simple flat plate, preventing cold air from directly entering the container, and the moisture evaporating from the vegetables stored inside the container keeps the container high in humidity, preventing the vegetables from drying out. In addition, the freshness of vegetables can be maintained for a long period of time by keeping the optimal humidity constant using a moisture-permeable membrane.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a refrigerator showing one embodiment of the present invention;
The figure is a sectional view of the refrigerator with the vegetable container removed, Figure 3 is a sectional view of the main part of the lower storage compartment of the refrigerator, Figure 4 is a perspective view of the lid, and Figure 5 is the lid. 6 is an explanatory diagram of the moisture permeable state in FIG. 5, FIG. 7 is a perspective view of a blocking plate, FIG. 8 is a sectional view of a conventional refrigerator, and FIG. 9 is a vegetable container. FIG. 14... Partition plate, 16... Lid body, 17
...Vegetable container, 18...Break plate, 2o
...Moisture permeable membrane. Name of agent: Patent attorney Toshio Nakao and 1 other person14
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Claims (1)

[Claims] A space is provided between an upper storage chamber and a lower storage chamber in which the refrigerator compartment is divided by a partition plate, a vegetable container provided in the lower storage chamber that is movable back and forth with an open top surface, and the partition plate. A refrigerator comprising a lid that substantially seals the top surface of the container, a moisture-permeable membrane held by the lid, and a shielding plate that faces the back surface of the vegetable container and extends to the vicinity of the bottom of the vegetable container.