JP2002081826A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator of simple structure capable of quick thawing and quick cooling and of which usability is excellent. SOLUTION: Slotted holes 26 are opened with a shutter 27 when the quick cooling of foods at a room temperature is required. Cool air inside a freezer compartment 15 contacts the back surface of a thawing plate 21 through the slotted holes 26 and the thawing plate is quickly cooled. Therefore, the foods mounted on the thawing plate 21 can be cooled quickly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cool air supply duct provided at the back of a refrigerator, a cool room to which cool air is supplied from the duct, and a food or the like placed on the upper surface provided in the cool room. The present invention relates to a refrigerator having a low-temperature storage room such as an ice greenhouse having an upper lid for performing storage.

[0002]

2. Description of the Related Art A refrigerator of this kind is disclosed in Japanese Patent Application Laid-Open No. H08-1596.
No. 36, for example. On the other hand, when eating food frozen and stored in a freezer, it is common to take it out of the refrigerator before eating and naturally thaw it, or put it in a plastic bag and put it in water and thaw it. . Further, when it is desired to rapidly cool food at a normal temperature, Japanese Patent Laid-Open No. 5-106 is disclosed.
Generally, the refrigerator is refrigerated in a specially provided quenching chamber as disclosed in Japanese Patent Application Laid-Open No. 958/958.

[0003]

However, in the above-described thawing, the temperature suddenly becomes too high or extremely troublesome work is required. On the other hand, providing a quenching chamber results in an expensive refrigerator.

[0004] Therefore, an object of the present invention is to provide a refrigerator which can be quickly thawed or refrigerated with a simple structure and which is very easy to use.

[0005]

According to the present invention, there is provided a cold air supply duct provided at a rear portion of a refrigerator, a refrigerator compartment to which cool air is supplied from the duct, and a food or the like provided in the refrigerator compartment on an upper surface. In a refrigerator provided with a low-temperature storage room such as an ice greenhouse having an upper cover for mounting, a metal heat-extracting plate having good heat conductivity is detachably mounted in a concave portion formed on the upper surface of the upper cover. In addition, a plurality of holes are formed on the surface on which the concave portion is formed.

The present invention also provides a cool air supply duct provided at the back of the refrigerator, a cool room to which cool air is supplied from the duct, and a cool room provided in the cool room for placing food or the like on the upper surface. In a refrigerator provided with a low-temperature storage room such as an ice greenhouse having an upper lid, a metal heat-extracting plate having good heat conductivity is detachably mounted in a concave portion formed on the upper surface of the upper lid, and the concave portion is placed in the concave portion. A plurality of holes that can be opened and closed by a shutter are provided on the formed surface.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, a refrigerator 1 has a box-shaped main body 2 having heat insulating walls on both sides except a front surface, a back surface, a ceiling surface, and a bottom surface. The main body 2 is formed by filling a heat insulating material 5 such as urethane foam between an outer box 3 made of a steel plate and an inner box 4 made of a hard resin material.

The interior of the main body 2 is divided into a refrigerator compartment 6, a vegetable compartment 7, and two freezing compartments 8, 9 by partition walls 10, respectively. The front opening of the uppermost refrigerator compartment 6 can be closed by a pivotable heat insulating door that can be opened and closed, and the vegetable compartment 7 and the freezer compartments 8 and 9 on the lower side of the refrigerator compartment 6 are drawn out by a heat insulating door. Each is closed.

The heat-insulating door is constructed by filling a heat-insulating material such as urethane foam between a door outer box made of a steel plate and a door inner box made of a hard resin material.

The refrigerator 1 is provided with a known refrigeration cycle unit. That is, the compressor provided at the bottom of the main body 2 sucks and compresses the refrigerant to a high temperature and high pressure, and the condenser condenses the high temperature and high pressure gaseous refrigerant from the compressor, and the low temperature and low pressure refrigerant is generated by the capillary tube. Is vaporized by the evaporator for the refrigerator compartment and the evaporator for the freezer compartment. The cool air cooled by the cool room evaporator provided in the cool air supply duct 11 is also cooled by the cool air circulating fan in the cool air supply duct 11 through the cool air blow-out port.
Will be introduced.

The refrigerator compartment 6 is provided with three shelves 12 on which food can be placed at predetermined intervals, and the food is placed on the partition wall 10 below the lowermost shelf 12. Once C
An ice greenhouse 15 to be stored nearby is formed. The ice greenhouse 15 has the bottom wall as the partition wall 10 and both side walls as the inner box 4 of the main body 2.
The upper side wall is made of a synthetic resin material which can be put in and out along the side walls of the inner box 4 of the main body 2, and an openable door is provided on the front surface of the ice temperature chamber 15. ,
The ice greenhouse 15 is provided with a known slide-type storage container 17 (for example, disclosed in Japanese Patent Application Laid-Open No. 10-103854).

That is, in the storage container 17, engagement portions projecting from both sides of the storage container 17 are guided along main guides provided on both sides of the inner box 4 of the main body 2. Auxiliary guides projecting from both sides of the storage container 17 slide on a support member provided in the storage container 17 so that the auxiliary guide can slide in and out of the ice temperature chamber 15.

As shown in FIG. 3 and FIG.
Has a substantially rectangular shape, and a recess 20 having a substantially rectangular shape in a plan view is formed at the center thereof.

A thawing plate 21 for placing a food made of a metal material having good thermal conductivity, for example, aluminum, is placed in the recess 20. Cold air from the cold air supply duct 11 is supplied to the refrigerator compartment 6 by the cold air supply duct 11. And the entire surface of the thawing plate 21 is directly cooled. The left and right ends of the thawing plate 21
Although the caps 22 and 22 made of a synthetic resin material are covered in order to make the end face treatment unnecessary, they may be provided on the entire peripheral end.

On the surface on which the concave portion 20 is formed, a rib 25 having a rectangular shape in plan view is erected from the end of the concave portion 20 at a distance slightly inward. Then, a plurality of long holes 26 are formed at predetermined intervals in the upper lid 16 in a region surrounded by the ribs 25 of the concave portion 20. The ice hole 1
5 communicates with the lower side of the thawing plate 21.

Further, a shutter 2 for opening and closing the long hole 26 is provided.
7 is manually slidably provided along a guide 28 provided on the back surface of the upper lid 16. Then, the thawing plate 21 is placed on the rib 25. That is, when the long hole 26 is closed by the shutter 27, a heat insulating layer, which is a space, is formed between the upper lid 16 of the synthetic resin material and the thawing plate 21 formed of aluminum.

In the center of the front part of the concave part 20, a finger inserting concave part 30 is formed so as to extend forward. A finger is inserted into the finger inserting concave part 30, and the thawing plate 21 is lifted.
It becomes easy to remove the thawing plate 21 from the concave portion 20,
The recess 20 and the thawing plate 21 can be easily cleaned.

With the above-described configuration, cool air is supplied from the cool air supply duct 11 provided at the back of the refrigerator into the refrigerator compartment 6 to cool food on the shelf 12.

Here, when eating the food frozen and stored in the freezer compartments 8 and 9, it is necessary to quickly defrost the food. Therefore, the shutter 27 is moved along the guide 28 by putting a hand in the ice temperature chamber 15 in advance, and the slot 26 is closed. Then, a heat insulating layer (heat insulating space), which is a space, is formed between the upper lid 16 of the synthetic resin material and the thawing plate 21 formed of aluminum.

In this state, the frozen foods are taken out of the freezing compartments 8 and 9 and placed on the thawing plate 21 provided in the recess 20 of the upper lid 16 of the ice temperature compartment 15. Then, the temperature of the thawing plate 21 becomes a temperature close to the temperature of the refrigerator compartment 6. That is, the surface side of the thawing plate 21 is cooled by the cool air supplied into the refrigerator compartment 6, and
Is also cooled by the cool air in the ice warming chamber 15, but since the shutter 27 closes the long hole 26, the above-mentioned heat insulating layer (heat insulating space) between the upper lid 16 and the thawing plate 21 causes As described above, the temperature of the thawing plate 21 is close to the temperature of the refrigerator compartment 6. Therefore, the thawing plate 21
The food placed above will be slowly thawed.

Next, when it is desired to rapidly cool the food at normal temperature, the food can be cooled by placing it on the thawing plate 21. That is, in this case, the hand is put into the ice greenhouse 15 and the shutter 2 is moved.
7 is moved along the guide 28 to open the slot 26.

Then, cold air (-1 ° C.) in the ice temperature chamber 15 comes into contact with the back surface of the thawing plate 21 through the long hole 26, and the thawing plate 21 is cooled. Therefore, the food placed on the thawing plate 21 is quickly refrigerated.

[0023]

As described above, it is possible to provide a refrigerator that can be quickly thawed or refrigerated with a simple structure and that is truly easy to use.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view of a refrigerator.

FIG. 2 is a sectional view taken along the line II-II of FIG.

FIG. 3 is a plan view of an upper lid.

FIG. 4 is a sectional view taken along the line BB of FIG. 3;

[Explanation of symbols]

 6 Refrigeration room 11 Cold air supply duct 15 Ice temperature room 16 Top lid 20 Depression 21 Thaw plate 25 Rib 26 Slot 27 Shutter

Claims (6)

[Claims] 1. A refrigerator having a cool air supply duct provided at a rear part in a refrigerator, a refrigerator room to which cool air is supplied from the duct, and an upper lid provided in the refrigerator room for placing foods and the like on an upper surface. In a refrigerator including an ice greenhouse, a metal thawing plate is placed in a recess formed on the upper surface of the upper lid,
A refrigerator, wherein a hole is formed in a surface on which the concave portion is formed. 2. A cold air supply duct provided at a rear portion of the refrigerator, a refrigerator room to which cool air is supplied from the duct, and an upper lid provided in the refrigerator room for placing foods and the like on an upper surface. A refrigerator provided with an ice greenhouse, wherein a thawing plate is placed in a concave portion formed on an upper surface of the upper lid, and a hole which can be opened and closed by a shutter is opened on a surface on which the concave portion is formed. . 3. The refrigerator according to claim 2, wherein a rib is erected on the upper surface of the upper lid, and the thawing plate is placed on the rib. 4. A cold air supply duct provided at a rear part in the refrigerator, a refrigerator compartment to which cool air is supplied from the duct, and an upper lid provided in the refrigerator compartment for placing foods and the like on an upper surface. A refrigerator provided with a low-temperature storage room, wherein a metal thawing plate is placed in a concave portion formed on the upper surface of the upper lid, and a hole is formed in a surface on which the concave portion is formed. 5. A cold air supply duct provided at a rear portion of the refrigerator, a refrigerator compartment to which cool air is supplied from the duct, and an upper lid provided in the refrigerator compartment for placing foods and the like on an upper surface. In a refrigerator having a low-temperature storage room, a thaw plate is placed in a concave portion formed on the upper surface of the upper lid, and a hole that can be opened and closed by a shutter is opened on the surface on which the concave portion is formed. refrigerator. 6. The refrigerator according to claim 5, wherein a rib is provided upright on the upper surface of the upper lid, and the thawing plate is placed on the rib.