JPS5854619Y2 - refrigerator - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a refrigerator, and particularly relates to an improvement of a refrigerator equipped with a high-temperature storage chamber for storing foodstuffs such as vegetables and fruits that do not like evaporation of water.

The illustrated embodiment will be described in detail below.

Reference numeral 1 designates a refrigerator body consisting of an insulated box body divided into two upper and lower chambers by a heat insulating partition wall 1a, with the upper part serving as a refrigerating compartment 2 and the lower part serving as a high temperature storage compartment 3, each of which has an opening/closing door 4 at its front opening. and 5 are rotatably pivoted.

Reference numeral 6 denotes a cooler storage chamber formed within the heat insulating partition wall 1a and housing the cooler 7, and the cold air cooled here by the drive of the blower fan 8 is transferred to a cold air duct 9 and a cold air circulation duct 10.
Air is forcedly blown to the refrigerator compartment 2 and high humidity storage compartment 3 side through the.

The refrigerator compartment 2 is cooled by directly discharging cold air from the cold air duct 9, and the high humidity storage compartment 3 is indirectly cooled by having a cold air circulation duct 10 installed on the back thereof.

That is, a heat exchange plate 11 is provided on the upper surface of the high-humidity storage chamber 3 to thermally connect the inside of the high-humidity storage chamber 3 with the cold air circulation duct 10, and the inside of the high-temperature storage chamber 3 is indirectly cooled by the action of the heat exchange plate 11. are doing.

Therefore, when the door 5 is closed, the high-temperature storage chamber 3 becomes a substantially sealed isolation chamber, and cold air from the cooler storage chamber 6 does not directly flow into the high-temperature storage chamber 3.

12 is a moisture absorbing layer made of a material with good moisture absorption provided on the inner surface of the inner box 13, and a fibrous sheet such as polyester, nylon, acrylic, nonwoven fabric, or foam sheet is stored therein, and the mounting position is also cool air. It is provided below the Y point of the inner box 13, which does not touch the circulation duct 10, from the back surface to the bottom surface.

If it is also installed on the back of the inner box 13 in contact with the cold air circulation duct 10 above the point Y, when the cooling capacity is increased near the point H of the hygroscopic layer 12 that has absorbed water, freezing will occur and the heat exchange plate 11 will be defrosted. Water collects near point H and freezes and accumulates.

Then, as time passes, the moisture in the moisture absorption layer 12 below point Y evaporates and moves to the heat exchange plate 11, and finally becomes a dry moisture absorption layer, with all moisture largely freezing and condensing near point H. frost

Since there is a drawback that the atmosphere in the high temperature storage chamber 3 is no longer high temperature, in order to improve this problem, the moisture absorption layer 12 is set only on the back surface below the Y point.

The heat exchange plate 11 includes a defrost heater that operates at fixed time intervals using a timer, so it does not freeze.Although it would be better to install a defrost heater on the back of the point H, the present invention is simpler. .

Therefore, when the refrigeration cycle is operated with items stored in the high-temperature storage chamber 3, the temperature inside the high-temperature storage chamber 3 is indirectly cooled by the action of the heat exchange plate 11, and the temperature eventually decreases. The water vapor becomes saturated and partially condenses into water droplets that are temporarily stored inside the moisture absorption layer 12.

At this time, excess moisture flows down through the moisture absorbing layer 12 and flows through the drainage hole 15 provided on the bottom of the drainage tray 161.
While the temperature inside the high temperature storage room 3 is 85-95%
maintained at high relative humidity conditions.

Therefore, when freezing occurs on the back surface above point Y and on the heat exchange plate 11, the humidity inside the high humidity storage chamber 3 decreases. Maintained at high humidity.

Therefore, the amount of water evaporation from the stored material can be kept to a minimum.

In the present invention, the moisture absorption layer 12 is formed by molding a fibrous sheet, a nonwoven fabric, or a foamed sheet, and this is formed into the inner box 13.
Y is pasted on the inner surface of the inner box 13, but the inner surface of the inner box 13 is coated with a hygroscopic and water-insoluble paint made of a resin such as polyvinyl alcohol, vinyl acetate, nylon, cellulose nitrate, or cellophane. Of course, it is also possible to coat the inner surface of the inner box or to laminate a film or thin plate made of the resin on the inner surface of the inner box.

If the moisture absorption layer 12 is forcibly impregnated with about 200 cc of water at the beginning of operation of the refrigerator of the present invention, the high temperature can be maintained from the start of operation.

In the refrigerator of the embodiment shown in Figures 1 to 3 above, the height of the opening is 550 mm, and the depth (7) is 250 mm.
, horizontal dimension M 270 m, m, lower dimension N from point Y on the back is 270 mm, upper dimension O from point Y on the back is 240 to 25C1 mm, distance X from point Y to the tip of the lower moisture absorbing layer 12 is preferably 0 to 50 nm.

Reference numeral 17 is a board of a drainboard, which serves to fix the moisture absorption layer 12, to block the inner surface of the high temperature storage chamber 3 from the outside air, and to prevent stored materials from coming into contact with the moisture absorption layer 12.

14 is a storage basket.

The moisture absorbing layer 12 provided after point Y has a height Z from the bottom surface of about 200 mm, as shown in the embodiment shown in FIG. 1, and the moisture absorbing layer 12' shown in the embodiment shown in FIG. As shown in the front view of main parts, A and B are U-shaped from the front.

It is also possible to make a molded product of a moisture absorbent material having sides C and D and to fix it to the wall of the inner box 13.

Further, it is desirable that the moisture absorbing layers 12 and 12' shown in FIGS. 1 and 2 be molded in a size and strength that are removable and can be cleaned and washed.

The shape of the moisture absorption layer 12' is not shown in FIG. 3 other than the above-mentioned FIGS. 2 and 3.
It may be a square-shaped one, or a three-sided U-shape with A, B, and C sides, and A, C, and 0 sides.

Furthermore, a humidifying device such as an ultrasonic humidifying device may be added to the configuration of the present invention to finely adjust the humidity.

Since the refrigerator of the present invention has the above-mentioned configuration, even if water that has evaporated from stored items condenses, this condensed water is temporarily absorbed into the moisture absorption layer installed at a position below the inner box that does not affect the cooling capacity. When the humidity inside the storage room decreases, the moisture in the moisture absorption layer is evaporated to keep the inside of the storage room at high humidity without concentrating on freezing on the heat exchange plate and the upper back surface. The amount of water evaporation from stored items can be suppressed to a minimum, the freshness of fresh foods can be maintained for a long time when they are stored, and the structure can be manufactured extremely simply and at low cost.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of essential parts showing an embodiment of the refrigerator of the present invention.
FIG. 2 is a sectional view of a main part showing another embodiment of the refrigerator of the present invention, and FIG. 3 is a front view of the main part of FIG. 2. In the drawing, 3 is a high humidity storage room, 10 is a cold air circulation duct, and 12
, i2' is a moisture absorption layer, and 13 is an inner box.

Claims (1)

[Scope of utility model registration request] In a refrigerator equipped with a storage compartment that is indirectly cooled by cold air passing through a cold air circulation duct, a moisture absorption layer is provided in an appropriately sized area from the back to the bottom below the inner box in contact with the cold air circulation duct. A refrigerator characterized by being equipped with a high temperature storage chamber.