JPH02195181A - Refrigerator - Google Patents

Abstract

PURPOSE:To prevent vegetable from damaging by providing a small vessel supported by rails provided on a cover between the cover and a large vessel, oppositely feeding chilled gas between a partition wall and the cover, and forming a chilled gas convention passage on the front surface of the cover for holding a moisture permeable film. CONSTITUTION:Between a cover 32 and a large vessel 23 are sealed fro chilled gas convention passages 35, 36 to eliminate direct invasion of chilled gas to the vessels 23, 27. The small vessel 27 is supported to the rail 34a of the cover 32 via a flange 27a with many through holes 27b, the front end is contained at the inner face 23a side, the rear face is contained at the position provided with a bypass part 27c at the inner face side from the back face 23d of the large vessel to substantially enclose the opening of the large vessel 23 to be longitudinally operated independently from the large vessel 23. A moisture permeable film 34 is formed by laminating a porous resin film 34a having fine pores and a film protecting chemical fiber 34b, and has gas permeability. Accordingly, since temperature difference does not occur in the vessels due to the communication between the through hole 27b of the small vessel 27 and the large vessel 23 via the bypass passage 27c, the vessels are held uniformly at high moisture with moisture evaporated from vegetables 37 from the moisture permeable film 34 of the cover 32.

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 main body, outer box 2, inner box 3, and both boxes 2.3
It is composed of a heat insulating material 4 filled in between.

A storage compartment opened at the front formed by the inner box 3 is divided into a freezing compartment 7 and an upper storage compartment 8 by a partitioning member consisting of an insulating partition wall 5, a partition wall 6 configured in a plate shape, and an insulating front unit 6a. and a lower storage chamber 9, and each of these chambers 7, 8, 9 has a front opening through a door body 10, 11, respectively.

It is closed at 12 so that it can be opened and closed. The partition wall 5 includes a compressor 13 disposed at the bottom of the refrigerator body and a heat insulating material 4 of the outer box 2.
Together with a condenser 14 and the like disposed on the side, a cold air passage 16 is formed in which a cooler 16 forming a refrigeration cycle is disposed, and an inlet 17 communicates with the upper and lower freezer compartments 7 and the upper storage compartment 8, respectively. 18 is formed. Reference numeral 19 indicates a discharge port 21°2 through which the cold air cooled by the cooler 15 is sent to the freezer compartment 7 and the upper storage compartment 8 through a duct 20 provided on the back wall of the main body 1.
This is a blower that blows air into the warehouse from 2. 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 body 12 that can be freely pulled out. The support frame 12& 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, and this roller 24 is guided to a support seat/L/25 provided on the side wall of the inner box 3 in the front and back direction. On the other hand, 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. 27
is an independent small container for separately storing vegetables, and is supported by the support guide rails (not shown) of the front panel 6 and the partition wall 6.

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,
When moving the small container back and forth, or when taking it out of the refrigerator 1 from the rails that support and guide it, the bottom 27a of the small container 27 and the soft material 29 should be placed so that it does not come into contact with the upper edge 23a of the rear opening of the large container 23. In addition, 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 upper storage chamber 8 through the cold air intake port 30 convects around the outer periphery of the container 23°270, it is removed from the gap between the large container 23 and the small container 27. Because of the direct penetration, the moisture that evaporates from the vegetables, especially leafy vegetables, in the large container 23 is carried away and becomes dehydrated and dry, resulting in a problem that freshness can only be ensured for a short period of time.

For this reason, a method has been considered in particular for the lower container 23, 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 to seal it, 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 of the vegetables, creating a temperature difference between the large container 23 and the surface of the lid.
A large amount of dew condenses on the inner surface of the lid, and also condenses on the back opening of the large container 23, which is locally 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 solves the conventional problems, and it is possible to dry stored items such as vegetables regardless of the presence or absence of gaps in both large and small containers, and prevent stored items from spoiling due to dew condensation.
The object of the present invention is to provide a refrigerator that can maintain a predetermined temperature in a lower storage compartment by distributing the amount of cold air.

Means for Solving the Problems In order to solve the above problems, the present invention provides a structure in which a small container is placed inside a substantially box-shaped lid body that covers a large container that can be freely pulled out, and a lid body that can be pulled out independently from the top of the opening surface of the large container. The container is supported by a seam μ provided on the lid, and the inside of the large container is sealed and sealed by a sealing member provided around the end of the lid, and a moisture permeable membrane is held on the upper surface of the lid. An air passage for actively convecting cold air is provided in the space between the lid and the partition wall that partitions the upper storage chamber.

According to the above structure, the lid body and the inside of the large container are sealed via the small container, and the insides of the large and small containers are kept in the same airtight state by the through hole etc. provided in the small container. The water vapor generated by the evaporation or breathing of the stored material is cooled by cold air convection between the partition wall and the lid through the through holes of the small container, and permeates to the surface of the lid, which is on the lower humidity side. Moisture is permeable through the wet membrane, and it is also cooled from the top surface, allowing large and small containers to be maintained at a predetermined temperature. 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.

Furthermore, the moisture permeable membrane keeps the humidity inside the large and small containers constant and moderately suppresses the dryness of the vegetables, ensuring that there is no gap between the large 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 e. 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 12c 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 seam μ, 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 flange 23d extending in the horizontal direction is formed on the side wall 23a of the opening peripheral portion 23b on the other surface. Reference numeral 32 denotes a lid, which includes a flat part 33b having a multi-wire through hole 33a, and a flat part 33b on both sides 3.
30, a back surface 33d, and a moisture-permeable membrane 34 held on the side of the flat portion 33b facing the container (the lid may have a divided structure).

6 is a partition wall, 35 is a first cold air convection air passage above the lid 32, and 35a is a cold air intake thereof. After this cold air convection, the cold air returns to the cold air return vent 6b. 6 is an adiabatic front added in the lateral direction. 36 is a second cold air convection air passage, which convects cold air between the back surface 33d of the lid body 32 and the outer periphery of the large container 23, and then passes through the cold air return vent 6b on the front side 6a.
Return to

34& is a rail provided on the inner wall of the container above the lid 32. 36 is a sealing member fixed to the portal edge 32a of the lid body 32 with a claw or the like; 38 is a sealing member fixed to the side wall 33c and the back surface 3;
3b is a sealing member similarly attached to the end of the large container 23, and when the large container 23 is stored, the seal member 36 is
38 is the inner surface of the opening edge 23a on the front side of the large container 2.
It is pressed against the horizontally extending flange 23d on the side surface of No. 3 in the vertical direction. Due to this configuration, the first cold air convection air passage 35 and the second cold air convection air passage 36 are sealed between the lid body 32 and the large container 23, so that cold air is not transmitted to the containers 23 and 27, respectively. There is no direct invasion. The small container 27 is supported by a flange 27a on the seam #34a of the lid body 32, and has a large number of through holes 27b, with the front end facing the inner surface 23a and the back surface bypassing the inner surface 23d of the large container. The opening of the large container 23 is housed in the position where the portion 27c is provided, so that the opening of the large container 23 is substantially closed, and the large container 23 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 1oA, 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 2 of the small container 27 described above
Since the 7b1 bypass air passage section 27c communicates with the large container 23 and there is no temperature difference within each container, the moisture permeable membrane 34 of the lid 32 allows each container to maintain high humidity due to moisture evaporated from the vegetables 37. kept uniform.

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 35.
The first cold air convection air passage 36 has a shorter passage 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 36 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 lid 32 to be cooled. Also, for this reason, moisture does not accumulate on the back side of the partition wall 6. On the other hand, the amount of convection in the second cold air convection air passage 36 decreases, and since the lid 32 covers the containers 23 and 27, the temperature at the back does not become very low, causing a temperature difference between the inside and outside of each container. This prevents condensation from forming on the inside of the container. Moisture permeable membrane 3
Regarding 4, 80 is said to be suitable for preserving vegetables.
Maintaining the humidity at ~96% RH can be achieved by combining the above-mentioned configuration.

Furthermore, 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 includes a box-like lid that covers and seals a large container, a small container supported by a rail provided on the lid between the lid and the large container, and a partition. Although it allows cold air to circulate between the wall and the lid, there is no direct intrusion of cold air into the container, and the moisture that evaporates from the vegetables stored inside the container prevents the small container from being connected between the lid and the large container. It is possible to maintain high humidity through the filter and maintain the freshness of vegetables for a long period of time. In addition, 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 surface of the moisture-permeable membrane has a lower temperature and humidity relative to the inside of the container, and the moisture that evaporates from vegetables is reduced. The excess moisture does not condense on other surfaces and is concentrated in the moisture permeable membrane. 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 gap size between the small and large containers, but the structure is simple and the effect can be achieved without using lids that hold moisture permeable membranes for each large and small container. This results in low cost.

Furthermore, after the lower storage chamber door and the respective containers have been quickly removed, the lid body can be easily removed and cleaning etc. can be easily performed.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional view of the main part of the 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. 3 is a cross-sectional view of the lower storage compartment of the refrigerator.
4 is a perspective view of the large container, FIG. 5 is a perspective view of the lid, and FIG. 6 is an explanation of the moisture permeability state of the lid in FIG. 6. FIG. 7 is an enlarged cross-sectional view of a conventional refrigerator. 6...Partition wall, 8...Upper storage room, 9
...Lower storage room, 23...Large container, 2
sd... Flange of large container, 27. Old... Small container, 32... Lid, 34... Moisture permeable membrane.
34a...Rail of lid body, 35, 38...
...Seal member. Name of agent: Patent attorney Shigetaka Awano 1 person 6-
Ji w sacrilege - small feudal vessel 12 Figure Figure Figure C tsu 4h q) O) Figure Figure Do J /3

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 to open the upper surface, and a large container located below the partition wall. A box-shaped lid that covers the large container and is equipped with a moisture-permeable membrane made of a laminated layer of porous resin and chemical fiber that forms an air path between the partition wall and a seal provided around the edge of the lid. The member and the flange on the outer edge of the large container contact and seal in the vertical direction, and are supported by a rail provided on the lid in the space between the lid and the large container. A refrigerator comprising a small container with an open top that moves independently of the container.