JPS603149B2 - Freezer refrigerator - Google Patents

Description

[Detailed description of the invention] The present invention relates to a refrigerator-freezer having a freezer compartment and a refrigerator compartment.

In recent years, in order to prevent condensation from forming in the closed portion of the refrigerator body, it has become popular to place a portion of the high temperature piping of the refrigeration system. However, this type heats the entrance part of the main body even during periods when there is little dew, such as in the winter, so there is heat leakage to the inside of the refrigerator, increasing power consumption. The present invention
As usual, the high-temperature piping of the cooling system is placed at the opening of the freezer compartment, a heat pipe that uses the high-temperature part of the cooling system as a heat source is installed at the entrance of the refrigerator compartment, and a thermoswitch is inserted in the heat pipe. The purpose of this is to stop heating the refrigerator compartment or reduce it to a very small amount when it is not needed, reducing heat leakage to the inside of the refrigerator and saving energy.

An embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes a refrigerator-freezer body, which has a freezing compartment 2 at the top and a refrigerator compartment 3 at the bottom, and each opening 2a, 33 has a door (
(not shown) is provided.

A high-temperature pipe 5 through which the high-temperature heat of the cooling system 4 flows is arranged at the entrance 2a of the freezing compartment 2, and heat pipes 6 are arranged on the left and right at the entrance 3a of the refrigerator compartment 3. On the other hand, the cooling system 4 includes a compressor 7, a defrost water evaporation condenser 8, a main condenser 9, a high-temperature pipe 5, a capillary tube 10, and a cooler 11 connected in an annular manner as is well known.
Reference numeral 12 denotes a thermoswitch, which has a cylindrical shape and consists of a space 14 surrounded by a heat insulating material 13 and a lid 15 at the upper end.

This space 14 houses a high-temperature section 15 that is a pipe between the compressor 7 and the defrost water evaporator 8, and also houses the heat source section 6a of the heat pipe 6. Further, the heat pipe 6 is arranged so that the heat source section 6a is at the lowest position. Reference numeral 16 denotes an operating member consisting of a bellows that expands and contracts to open and close the lid 15 in response to changes in outside air temperature.
5 is closed and opened when the outside temperature is low.

Next, the operation of this configuration will be explained.

When the outside temperature is high, such as in summer, the lid 15 of the thermoswitch 12 is closed by the actuating member 16, and when the overflow cold gas flows through the high temperature section 15 due to the operation of the compressor 7, it is possible to cool the inside of the space 14. It exchanges heat with the heat source part 6a of the heat pipe 6, and heats the opening part 3a of the refrigerator compartment 3.

On the other hand, the closed portion 2a of the freezer compartment 2 is heated by the high temperature cold soot liquid. In addition, when the outside temperature is low, such as in winter, the lid 15 of the thermoswitch 12 is open, and only a small amount of the heat in the high temperature section 15 is exchanged to the heat source section 6a by the rising air flowing from the bottom to the top inside the space 14. First, the closed portion 3a is heated only slightly.

On the other hand, the side portion 2a of the freezer compartment 2 is directly heated by the cold soot of the cooling system, as in the summer. Furthermore, in the case of spring or autumn, cover 1
The entrance portion 3a is heated according to the degree of function No.5.

Note that the lid 15 of the thermoswitch 12 may be opened and closed depending on the season using a manual lever or the like instead of using the bellows.

As described above, the present invention has a freezing compartment and a refrigerating compartment, and a high-temperature pipe through which high-temperature cold soot discharged by a compressor in the cooling system flows is arranged at the entrance of the freezing compartment, and A heat pipe connected to the high-temperature part of the cooling system via a thermoswitch is arranged in the section, and the entrance section of the freezer compartment is constantly heated by the cold soot in the cooling system in accordance with the operation of the compressor. In addition to preventing dew from forming, a thermoswitch can reduce or eliminate heating at the entrance of the refrigerator compartment when unnecessary, eliminating heat leakage to the inside of the refrigerator and reducing power consumption accordingly. In addition, if the thermoswitch stores the heat source part and the high temperature part of the heat pipe in a space surrounded by a heat insulating material, and is provided with a ventilation lid that can be opened and closed, when the lid is closed, , the amount of heat transferred to the heat source section increases, and when the lid is opened, the amount of heat transferred to the heat source section can be reduced, and switching can be performed without contact between the heat pipe and the high temperature section.

Further, by providing the lid with an operating member such as a bellows that opens and closes the lid depending on the outside temperature, the amount of heat transferred to the heat vip can be automatically changed.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a refrigerator showing one embodiment of the present invention;
The figure is a schematic diagram of the cooling system. Figure 1 Figure 2

Claims (1)

[Scope of Claims] 1. In a device comprising a freezer compartment and a refrigerator compartment, each having a freezer compartment door and a refrigerator compartment door, the opening of the freezer compartment contains high-temperature refrigerant discharged by a compressor in the cooling system. A refrigerator-freezer, wherein a flowing high-temperature pipe is arranged, and a heat pipe connected to a high-temperature part in the cooling system via a thermoswitch is arranged at the opening of the refrigerator compartment. 2. The thermoswitch according to claim 1, wherein the thermoswitch houses the heat source part and the high temperature part of the heat pipe in a space surrounded by a heat insulating material, and has a ventilation lid that can be opened and closed freely. Freezer refrigerator. 3. The refrigerator-freezer according to claim 2, wherein the lid has an operating member such as a bellows that opens when the outside temperature is high and closes when the outside temperature is low.