JPH0415477A - Refrigerator with thawing compartment - Google Patents

Abstract

PURPOSE:To maintain a first refrigerating compartment at a uniform temperature by a method wherein a thawing compartment side wall cold air return duct, which communicates with a second refrigerating compartment cold air return duct and discharges the return cold air into the first refrigerating compartment, is provided on the inner side wall of the thawing compartment in the first refrigerating compartment. CONSTITUTION:The water in a water supply tank 25 is supplied to an automatic ice making device 24 through a water supply pipe 27 by the action of a water supply pump motor 26, and ice making is automatically carried out. Then, a zone of return cold air having a high temperature, that passes along a thawing compartment side wall cold air return duct 23, is formed between a thawing compartment 5 and the side of the thawing compartment 5 in a first refrigerating compartment 2, so that the side part of the thawing compartment 5 in the first refrigerating compartment 2 is hardly affected by the thermal influence of the thawing compartment 5 in which the temperature is lower than the refrigerating temperature and the first refrigerating compartment 2 is maintained at a uniform and proper temperature. Therefore, the water in the water supply tank 25 located beside the thawing compartment 5 is prevented from being super-cooled and freezing due to the thermal influence of the thawing compartment 5.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a refrigerator with a thawing chamber for thawing frozen foods.

BACKGROUND OF THE INVENTION In recent years, refrigerators with a thawing chamber provided inside the refrigerating chamber have been put on the market. For example, the NR-F40VP1 refrigerator-freezer manufactured by Kishita Denki Co., Ltd., which was released in March 1000, is an example of this, and will be explained below with reference to FIGS. 3 and 4.

In the figure, 1 is a freezing room, 2 is a first refrigerating room, 3 is a cold room maintained in a third temperature range between the refrigerating temperature and the freezing temperature, 4 is a second refrigerating room, and 5 is a thawing room. , 6 are freezer compartments 1 and 1
8 is a first horizontal partition wall that partitions the cold room 2, γ is a second horizontal partition wall that partitions the first cold room 2 and the cold room 3, and 8 is a wall that partitions the cold room 3 and the second cold room 4. This is the third horizontal partition wall.

At the back of the freezer compartment 1, a cooler 10 and a blower 9 for forced circulation of cold air are provided.

In the refrigerator configured as above, Part 3 is as follows:
.

Explain the flow of cold air. First, the cold air that has passed through the cooler 10 is passed through the cold air discharge ducts 11 of the first and second refrigerator compartments provided at the back of the first refrigerator compartment 2 by the cold air forced circulation blower 9. To the cold room cold air return duct 12, which is also provided in the back of the first refrigerator compartment 2, to the cold room 3; to the thawing chamber 6, and to the second refrigerator compartment 4 through the first and second refrigerator compartment discharge ducts 11 and the second refrigerator compartment cool air discharge duct 14 provided at the back of the cold room 3, respectively. Supplied.

The cold air supplied to the first refrigerator compartment 2 passes through the first refrigerator cold air return duct 15 provided in the first horizontal partition wall 6 to the cooler 1Q, and the cold air supplied to the thawing compartment 5 passes through the first refrigerator compartment cold air return duct 15 provided in the first horizontal partition wall 6. Cooling through the thawing room cold air return duct 16 provided in the back of the refrigerator compartment 2 and within the first horizontal partition wall; The cold air supplied to the second refrigerator compartment 4 passes through the cold room cold air return duct 17 provided in the third horizontal partition wall 8, the deep part of the cold room 3, and the second refrigerator compartment 4. A second refrigerator provided at the back of the first refrigerator compartment 2
The cold air is discharged to the first refrigerator compartment 2 through the refrigerator compartment cold return duct 18, respectively. 19 is an automatic temperature controller that adjusts the amount of cold air supplied to the first refrigerator compartment 2 and the second refrigerator compartment 4 ~, 20 is the amount of cold air supplied to the cold room 3, and 21 is an automatic temperature controller that adjusts the amount of cold air supplied to the thawing chamber 5. It is a device.

Next, the operation of the defrosting chamber 5 will be explained. First, during thawing, the thawing heater 22 is energized, and cold air is supplied into the thawing chamber 5 through the air path composed of the thawing chamber cold air discharge duct 13 and the thawing chamber cold air discharge duct 16, and the cold air is dropped onto the food to be thawed. Because of the flow, the surface of the food to be disassembled is evenly cooled, furthermore, temperature rise is suppressed, and thawing with less uneven thawing can be achieved. After that, the inside of the thawing chamber 5 is moved to the third temperature range between the freezing temperature and the refrigeration temperature (for example, -3
℃ partial freezing temperature range), and the temperature of the food to be thawed does not rise further due to residual heat immediately after thawing. Even if you leave it for a while, it maintains its freshness at a temperature suitable for raw foods such as fish meat, and you can use the food at any time.

5 ＼-7 Problems to be Solved by the Invention However, in the dual configuration, after thawing is completed, the thawing chamber becomes colder than the refrigeration temperature, so it is affected by the heat, and the part next to the thawing chamber in the first refrigeration chamber However, there was a problem in that the refrigeration temperature tended to be too low, making it difficult to maintain an appropriate refrigeration temperature.

The present invention solves the above-mentioned problems of the conventional example, and prevents the portion next to the thawing chamber in the first refrigerator chamber in which the thawing chamber is provided from being properly cooled, and provides the first refrigerator with an appropriate and uniform temperature distribution. The present invention provides a refrigerator with a thawing chamber and a refrigerating chamber.

Means for Solving the Problems In order to solve the above problems, the refrigerator with a defrosting chamber of the present invention has the following features:
A thawing chamber side cold air return duct that communicates with the second refrigerator compartment cold air return duct and discharges cold air back to the first refrigerator compartment is provided on the first refrigerator compartment inner side wall surface of the thawing compartment provided in the first refrigerator compartment. It was established.

Effects of the present invention Due to the charging configuration, a heat insulating layer is created between the thawing chamber provided in the first refrigerator compartment and the horizontal portions 6 and 7 of the thawing chamber in the first refrigerator compartment by return cold air with high temperature. This makes it difficult for the side portion of the thawing chamber in the first refrigeration chamber to be affected by the heat of the thawing chamber, which is lower than the refrigeration temperature, and the temperature in the first refrigeration chamber becomes appropriate and uniform.

Example Embodiments of the present invention will be described below with reference to FIGS. 1 and 2.

Note that the same components as those of the conventional example are given the same numbers and detailed explanations are omitted. In the figure, 23 is a thawing chamber side cold air return duct that communicates with the second refrigerator compartment cold air discharge duct 18 and is provided on the inner side wall surface of the first refrigerator compartment 2 of the thawing chamber 5.
A part of the return cold air from the refrigerator compartment 4 is discharged into the first refrigerator compartment 2 through the cold air return duct 23 on the side of the defrosting compartment. 24
25 is an automatic ice making device installed in the freezer compartment 1, and 25 is the first ice making device.
A water supply tank is installed next to the thawing chamber 5 in the refrigerator compartment 2, sandwiching the cold air return duct 23 on the side of the thawing chamber, 26 is a water supply motor, and 27 is a water supply pipe. The water in the water supply tank 25 is supplied to the automatic ice making device 7.\-7 24 through the water supply pipe 27 by the operation of the water supply motor 26, and ice is made automatically. With the above configuration, a heat insulating layer is created between the thawing chamber 6 and the horizontal portion of the thawing chamber 5 in the first refrigeration chamber 2 for the high-temperature return cold air passing through the thawing chamber side cold air return duct 23, which lowers the refrigeration temperature. The side portion of the thawing chamber 5 in the first refrigerator compartment 2 is less susceptible to the thermal influence of the vortex in the thawing chamber 5, and the temperature in the first refrigerator compartment 2 becomes appropriate and uniform. Therefore, the water in the water supply tank 25 installed on the side of the thawing chamber 6 will not be overcooled and frozen under the influence of the heat of the thawing chamber 5.

Effects of the Invention According to the present invention, as described in section 2, the first refrigerator compartment cold air return duct communicates with the second refrigerator compartment cold air return duct on the first refrigerator compartment inner side wall surface of the thawing compartment provided in the first refrigerator compartment. By providing a cold air return duct on the side of the thawing chamber that discharges cold air that returns to the refrigerator compartment, high-temperature return cold air passes through the cold air return duct on the side of the thawing chamber between the thawing chamber and the side portion of the thawing chamber in the first refrigerator compartment. A heat insulating layer is formed, and the lateral parts of the first refrigerator compartment are less susceptible to the thermal effects of the thawing chamber, which is lower than the refrigerator temperature, and the temperature in the first refrigerator compartment becomes appropriate and uniform. .

[Brief explanation of the drawing]

FIG. 1 is a front view of a refrigerator with a defrosting chamber according to an embodiment of the present invention, FIG. 2 is a sectional view of the same refrigerator with a defrosting chamber, FIG. 3 is a front view of a conventional refrigerator with a defrosting chamber, and FIG. The figure is a sectional view of the same refrigerator with a defrosting chamber. 1... Freezer compartment, 2... First refrigerator compartment,
3...Cold room, 4...Second cold room,
5... Thawing chamber, 6... First horizontal partition wall,
End...Second horizontal partition wall, 8...Third horizontal partition wall, 11...First and second refrigerator room cold air return ducts, 12... ...Cold room cold air discharge duct, 1
3... Defrosting chamber cold air discharge duct, 14...
・Second refrigerator compartment cold air discharge duct, 18...2nd
Refrigerator room cold air discharge duct, 23...Defrosting chamber side cold air return duct, 24...Automatic ice maker, 26...
...Water tank, 26...Water pump,
27... Water supply pipe.

Claims (1)

[Claims] (1) A freezing compartment above the main body, a first refrigeration compartment divided by this freezing compartment and a first horizontal partition wall, and a first refrigeration compartment divided by this refrigeration compartment and a second horizontal partition wall, which are divided by the refrigeration temperature and freezing temperature. A cold room maintained in a third temperature zone between temperatures, a second refrigerator compartment separated from the cold room by a third horizontal partition wall, and a lower part of the first refrigerator compartment containing a thawing room having the same temperature range as the cold room; a first and second cold room cold air discharge duct, a cold room cold air discharge duct, and a thawing room cold air discharge duct on the back side of the cold room; and the third horizontal partition wall. the second refrigerator compartment cold air return duct that passes through the interior and the back of the cold room and leads to the first refrigerator compartment; A refrigerator with a thawing chamber, characterized by being provided with a cold air return duct on the side of the thawing chamber that communicates with the first refrigeration chamber and discharges cold air back to the first refrigeration chamber.