JPH02136676A - Refrigerator - Google Patents

Abstract

PURPOSE:To prevent the drying of stored articles such as vegetables or the like as well as the rotting of the same due to dewing by a method wherein the lid body of a box body, sealing by covering a large vessel, is provided and a small vessel, supported by rails provided on the lid body between the lid body and the large vessel and provided with a multitude of penetrating holes and the like, is provided while cold air is ventilated between a partitioning wall and the lid body through convection. CONSTITUTION:A small vessel 27 is supported in a lid body 32, having the shape of a box body substantially and covering a drawable large vessel 23, by rails 34a provided on the lid body 32 so as to be drawable independently at the upper part of the opening surface of the large vessel 23 while the inside of the large vessel 23 is sealed tightly by seal members 38, 39 provided on the peripheral rim of the end of the lid body 32. An air passage 35 for ventilating cold air actively through convection, is provided in a space between the upper surface of the lid body 32 and a partitioning wall 6, holding moisture permeating films 34 on the side surfaces thereof and partitioning an upper storage chamber 8 and the space. Accordingly, the inside of the large vessel is sealed by the lid body while interposing the small vessel while the inside of the large vessel and the small vessel is kept in the same sealed condition by penetrating holes provided on the small vessel.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a refrigerator equipped with independent large and small containers for preserving vegetables in a fresh state for a long period of time.

BACKGROUND OF THE INVENTION In recent years, as gourmet food has become more popular, there has been an increasing demand for long-term preservation of vegetables in refrigerators, compartmentalization of vegetables, and improvements in usability.

Here, a conventional example will be explained with reference to FIG. 1 is the refrigerator itself, and 2 is the outer box. It is composed of an inner box 3 and a heat insulating material 4 filled between the two boxes 2 and 3. A storage room opened at the front formed by the inner box 3 is divided into a freezer compartment 7°, an upper storage compartment 8 and a compartment member consisting of a heat insulating partition wall 5, a partition wall 6 configured in a plate shape, and a heat insulating base 6a. Sections are formed in the lower storage chamber 9, and each of these chambers? , 8.9 each have a front opening as the door body 10.
It is closed so that it can be opened and closed at 11.12 degrees. The partition wall 5 has a cold air passage 16 in which a cooler 16 forming a refrigeration cycle is disposed together with a compressor 13 disposed at the bottom of the refrigerator body and a condenser 14 disposed on the side of the heat insulating material 4 of the outer box 2. and suction ports 17 and 18 communicating with the upper and lower freezer compartments 7 and the upper storage compartment 8, respectively.

Reference numeral 19 sends the cold air cooled by the cooler 16 into the freezer compartment 7 and the upper storage compartment 8 through respective discharge ports 21 and 22 through a duct 20 provided on the back wall of the wooden body 1. It's a blower. 23 is a large container with an open top for storing vegetables and the like in the lower storage chamber 9, and is placed on a support frame 12a provided on a door that can be freely pulled out. The support frame 12a is provided with a roller 24 protruding laterally at the rear of the left and right sides, and a stopper 12b provided on the lower side. The support frame 12a is guided by rollers 26 protruding from the front end of the side wall of the inner box 3 on the lower surfaces of the left and right sides of the support frame 12a, so that it can be freely pulled out. Reference numeral 27 is an independent small container for separately storing vegetables, and the supporting guide rail (
(not shown).

Due to these configurations, the door body 12 is pulled out and the support frame 12a
With the stopper 12b in contact with the roller 26,
A gap 29 is provided with the bottom 27a of the small container 27 so that the small container does not come into contact with the upper edge 23a of the rear opening of the large container 23 when moving the small container back and forth or when taking it out of the refrigerator 1 from the supporting and guiding rails. At the same time, it was necessary to provide a gap to prevent the side surfaces from coming into contact with each other.

Problems to be Solved by the Invention According to the above configuration, when the cold air taken in from the storage chamber 8 through the cold air intake port 30 flows around the outer periphery of the containers 23 and 27, the gap between the large container 23 and the small container 27 Since the vegetables directly enter the large container 23, the moisture that evaporates from the vegetables, especially the leafy vegetables, is carried away and becomes dehydrated and dried, causing a problem that freshness can only be ensured for a short period of time.

For this reason, a method has been considered in which a lid (not shown) whose outer periphery is sealed with a sealing member is brought into contact with the opening of the large container, especially for the lower container 23, but it is difficult to remove the lid. In addition to being inconvenient, the inside of the container becomes highly humid due to the respiratory heat transpiration effect of vegetables, creating a humidity difference between the surface of the large container 23 and the lid, causing a large amount of condensation on the inner surface of the lid, and causing localized condensation. Condensation also forms on the inner surface of the large container 23 that is cooled. For this reason, there were quality issues such as the vegetables rotting on the inner side that came into contact with the vegetables and the area where water droplets fell from the lid, so it was not put into practical use.

In view of the above-mentioned problems, the present invention is an attempt to solve the conventional problems.The present invention is designed to prevent stored vegetables and other stored items from drying out and spoilage due to dew condensation, regardless of the presence or absence of gaps between large and small containers, and to disperse the amount of cold air. The object of the present invention is to provide a refrigerator in which a lower storage chamber can maintain a predetermined humidity.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention covers a large container that can be pulled out freely, and a small container is placed inside a substantially box-shaped lid, and a lid that can be pulled out independently is placed above the opening surface of the large container. It is supported by a rail provided on the body, and the sealing member provided around the edge of the lid seals the inside of the large container, and a moisture permeable membrane is maintained on the top and side surfaces of the lid. An air passage for actively convecting cool air is provided in the space between the lid and the partition wall that partitions the storage compartment from the upper storage compartment.

According to the above-mentioned structure, the lid body and the inside of the large container are sealed through the small container, and the insides of the large and small containers are kept in the same sealed state by the through hole provided in the small container. Water vapor generated by evaporation or breathing of objects is cooled by cold air convection between the partition wall and the lid through the through holes of the small container, and permeates through the moisture permeable membrane to the surface of the lid, which is on the low humidity side. At the same time, it is also cooled from the top, allowing large and small containers to be maintained at a predetermined humidity level. In addition, when food is stored in a small container, the through hole provided in the small container is blocked and the inside of the large container becomes highly humid. To prevent.

Further, condensation inside the container due to local cooling of the back surface of the large container is prevented on the back surface side of the lid. In addition, the moisture permeable membrane keeps the humidity inside the large and small containers constant and moderately suppresses the dryness of vegetables, ensuring that there is no gap between the small container and the large container necessary for removing the small container. This allows for long-term storage regardless of the situation.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings of FIGS. 1 to 6. It should be noted that the same parts as those in the prior art are designated by the same reference numerals and the description thereof will be omitted.

Reference numeral 12 denotes a door body, and 120 a gasket with a built-in magnet provided on the door body, which is closely attached to the front surface of the refrigerator body 1 to maintain airtightness. Reference numeral 31 denotes a support rail, with a convex lip 31a on the upper end side and a groove 31 on the lower side for supporting and guiding the roller 24 of the support frame 12a.
b is provided in a substantially horizontal direction. Reference numeral 23 denotes a large container placed on a support frame and having an open top, with the front edge 23 of the opening extending from the front.
A, a side wall 23c of the opening peripheral portion 23b on the other side is formed with a flange 23d extending in the horizontal direction. Reference numeral 32 denotes a lid and a flat portion 33b having a large number of through holes 33a.

It has a substantially box-like shape composed of both sides 33c, a back surface 33d, the flat portion 33b, and a moisture-permeable membrane 34 held on the container-facing side of the both sides 33c (the lid body can also be divided into parts). good).

6 is a partition wall, 36 is a first cold air convection air passage above the lid body 32, and 35a is a cold air intake thereof. After this cold air convection, the cold air returns to the ventilation hole 6b. 6a is a heat insulating premise added in the lateral direction. 36 is a second cold air convection air passage, after which cold air convects between the back surface 33d of the lid 32 and the outer periphery of the large container 23, and then returns to the cold air return vent 6b of the premise 6a.

34a is a rail provided on the inner wall of the container above the lid 32. 39 is a seal member fixed to the portal edge 32a of the lid body 32 with a claw or the like; 38 is a side wall 33c and a back surface 33;
A sealing member is similarly attached to the end of the large container 2.
3 is in pressure contact with the inner surface of the front opening edge 23a of the large container 23 and the flange 23d extending horizontally on the side surface of the large container 23 in the vertical direction. Due to this configuration, the space between the lid body 32 and the large container 23 is sealed from the first cold air convection air path 35 and the second cold air convection air path 36, and cold air is directly supplied to the containers 23 and 27, respectively. There is no intrusion.

The small container 27 is supported by a flange 27a on the rail 34a of the lid body 32, has a large number of through holes 27b, has a front end on the inner surface 23a side, and a back surface with a bypass portion 27a on the inner surface side than the rear surface 23d of the large container. , and the side surface is the periphery 2 of the large container.
The large container 23 is housed at a position where the bypass portion 27d is provided on the inner side of the large container 23 so as to substantially close the opening, and can be operated back and forth independently of the large container 23.

Here, the moisture permeable membrane 34 of the lid will be explained. The moisture permeable membrane 34 is a laminated layer of a porous resin membrane 34a having fine holes and a chemical fiber 34b such as polyester for membrane protection. Porous resin membranes generally have gas permeability due to the molecular spacing of 10 to 1♂A, and are permeable to water vapor, air,
It has the property of permeating carbon dioxide gas if there is a difference in its concentration. Moreover, the chemical fiber 34b is for protection against external stress. With the above configuration, the through hole 27b of the small container 27 and the bypass air passages 27c and 27d communicate with the large container, and no humidity difference occurs within the container, so the lid 3
Through the moisture-permeable membrane 34 of No. 2, the moisture evaporated from the vegetables 37 keeps the containers uniformly high and humid.

Moisture above the saturated humidity is permeated as shown in FIG.

In other words, the cold air from the upper storage chamber 8 is transferred to the cold air intake SS.
The first cold air convection air passage 36 has a shorter passageway and lower air passage resistance than the second cold air convection air passage 36 flowing around the outer periphery. Therefore, the amount of convection in the first cold air convection air passage 35 is large, and moisture is gradually permeated to the cold air return vent 6b having a low humidity through the moisture permeable film 34 on the surface of the cover 32 to be cooled. Furthermore, moisture does not accumulate on the back surface of the partition wall 6. - The amount of convection in the cold air convection air passage 36 of the power tube 2 decreases;
In addition, since the lids 32 cover the containers 23 and 27, the humidity at the back does not become too low, and no humidity difference is created between the inside and outside of the four containers, so no condensation occurs on the inner surfaces of the containers. The moisture permeable membrane 34 is said to be 80-96% suitable for preserving vegetables.
Maintaining the humidity level can be achieved by combining the above-mentioned configuration.

Moreover, because of this configuration, the small container 27 is not restricted by vertical gaps between it and the large container 23. Therefore, the ease of removing and using the small container 27 can be improved.

Effects of the Invention As described above, the present invention provides a box lid that covers and seals a large container, and has a large number of through holes supported by rails provided in the lid between the lid and the large container. Since it is equipped with a small container and allows cold air to circulate between the partition wall and the lid, there is no direct intrusion of cold air into each container, and the moisture that evaporates from the vegetables stored inside the lid can The space between the large containers is maintained at high humidity through the bypass air passages and small containers provided at the back and both sides, allowing the freshness of the vegetables to be maintained for a long period of time. In addition, even if the through hole of the small container is blocked by food, the specified humidity can be maintained by the bypass air passage provided at the back and both sides of the small container and the moisture permeable membrane provided on the top and both sides of the lid. I can do it. Since the first cold air convection air path for cooling is formed on the surface side of the lid that holds the moisture permeable membrane, the humidity and temperature of the moisture permeable membrane surface is low relative to the inside of the container, and excess moisture evaporates from the vegetables. The moisture permeates through the moisture-permeable membrane without condensing on other surfaces. In addition, since the locally cooled area directly below the cold air outlet on the back is covered with a lid, the difference in temperature between the inside and outside of the container is prevented, preventing condensation from forming on vegetables due to moisture adhering inside the container. Damage can be prevented.

Furthermore, not only is there no restriction on the size of the gap between the small and large containers, but the structure is also simple and effective, as there is no need to use lids that hold moisture permeable membranes for each large and small container. Low cost.

After removing the lower storage chamber door and each container, the lid can be easily removed and cleaning etc. can be easily performed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of a main part of a lower storage compartment of a refrigerator showing an embodiment of the present invention, FIG. 2 is a cross-sectional view of the same room, and FIG. A cross-sectional view taken along line A, Figure 4 is a perspective view of the large container,
FIG. 6 is a perspective view of the lid, FIG. 6 is an enlarged cross-sectional view of a main part that also serves to explain the moisture permeability state of the lid in FIG. 5, and FIG. 7 is a cross-sectional view of a conventional refrigerator. 6...Partition wall, 8...Upper storage room, 9
...Lower storage room, 23...Large container, 2
3d...Large container flange, 27...
Small container, 32... Lid, 34... Moisture permeable membrane, 34a... Lid rail, 38, 39.
... Seal member. Name of agent: Patent attorney Shigetaka Awano and one other person Figure 6

Claims (1)

[Claims] An upper storage chamber and a lower storage chamber separated by a partition wall, a large container provided in the lower storage chamber with a front and rear slidable front extending and an open top surface, and located below the partition wall, A box-shaped lid covering the large container is provided with porous resin held on the top and side surfaces and a moisture-permeable membrane made of a laminated layer of chemical fibers, and a sealing member provided around the edge of the lid. and a flange on the outer edge of the large container are vertically abutted and sealed, and the large container is supported by a rail provided on the lid in a space between the lid and the large container. A refrigerator with a small container with an open top that moves independently of the refrigerator.