JPS6018778Y2 - Freezer refrigerator - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of a refrigerator-freezer in which a freezer compartment and a refrigerator compartment are arranged on the left and right sides.

Conventionally, in refrigerator-freezers that have a freezer compartment and a refrigerator compartment placed on the left and right, the cold air blown from the upper part of the back of the refrigerator compartment to cool the refrigerator compartment is highly humid because it contains moisture from the refrigerated food. When it circulates in the low-temperature freezer compartment, it is dehumidified within the freezer compartment, causing frost and icing inside the freezer compartment.

Therefore, it is necessary to provide an exhaust duct for the refrigerator compartment so that the cold air can be directly circulated to the lower part of the cooler compartment located deep inside the freezer compartment.

However, the location of the exhaust duct in this type of refrigerator compartment is limited, so when designing to ensure uniform temperature distribution within the refrigerator compartment, it is necessary to In the deep position, there is not enough cold air convection in the front part, resulting in a uniform temperature distribution, and since the exhaust duct is placed directly into the cooler room in the low temperature area, condensation and freezing may occur. To prevent this, a heater is required.

This not only increases the material and installation costs of the heater, but also impairs the essential function of the refrigerator, which is cooling, and has the drawback of increasing power consumption by inhibiting the cooling function. Ta.

Therefore, this idea was developed in a refrigerator-freezer that has a freezer compartment and a refrigerator compartment arranged on the left and right sides, by creating a new storage compartment for storing food at the bottom of the freezer compartment. To provide a refrigerator-freezer which eliminates the above-mentioned drawbacks of the conventional refrigerator by circulating the refrigerator in the order of storage room and cooler room.

Embodiments of this invention will be described below with reference to the drawings.

FIG. 1 shows an external view of the refrigerator-freezer according to this invention.
It consists of a refrigerator compartment 3 located on the side of the refrigerator compartment 2 and a storage compartment 4 located below the freezing compartment 2.

Additionally, there is a second
As shown in the figure, the freezer compartment 2 and the storage compartment 4 are divided into left and right sections by a partitioning thermal wall 5, and the freezer compartment 2 and storage compartment 4 are partitioned vertically by a partitioning thermal wall 6, as shown in FIG.

In FIG. 4, reference numeral 7 denotes a cooler chamber partitioned in the inner part of the freezer compartment 2. A cooler 8 is disposed inside the cooler chamber 7, and a cold air outlet 9 is connected to the upper part of the cooler chamber 7. The cold air circulation fan 11 is installed inside the cold air outlet 9. has been done.

Reference numeral 12 denotes a cold air blowing duct that communicates between the installation part of the cold air circulation fan 11 and the cold air blowing outlet 13 provided at the upper part of the refrigerator compartment 3, and a part of the cold air from the cooler chamber 7 is blown out by the operation of the fan 11. The cool air is introduced into the refrigerator compartment 3, and a damper thermo 14 is attached to the cold air outlet 13 to adjust the amount of cold air blown into the refrigerator compartment 3 so that the inside of the refrigerator compartment 3 is at an appropriate temperature.

Further, the refrigerator compartment 3 and the storage compartment 4 are communicated with each other by an exhaust duct 15 formed on the lower front side of the partitioning thermal wall 5, and the cold air sent to the refrigerator compartment 3 through the exhaust duct 15 is transferred into the storage compartment 4. It's like blowing out.

Furthermore, an exhaust duct 16 that communicates between the front side of the storage chamber 4 and the suction side of the cooler chamber 7 is formed in the partitioning thermal wall that partitions and separates the freezer compartment 2 and the storage compartment 4. The cold air used for cooling the chamber 4 is guided to the cooler chamber 7.

17 is a defrosting heater for removing frost adhering to the walls of the cooler 8 and the cooler chamber 7, and 18 is an electric compressor.

In the refrigerator-freezer having the above configuration, when the fan 11 is driven, the cold air cooled by the cooler 8 of the cooler chamber 7 is blown out from the outlet 9 into the freezer compartment 2, and the inside of the freezer compartment 2 is as shown in FIG. Convection occurs in the direction of the arrow, and the air is blown into the cooler chamber 7 from the air inlet 10 and circulated.

On the other hand, a part of the cold air accompanying the operation of the fan 11 is blown out into the refrigerator compartment 3 through the blow-off duct 12 and the blow-off port 13.
The cold air blown into the refrigerator compartment 3 flows as shown by the arrows in FIGS. 2 and 3 to cool the interior of the refrigerator compartment 3.

In addition, the cold air circulated in the refrigerator compartment 3, that is, the refrigerator compartment 3
The humid cold air containing moisture from the refrigerated food inside is sent into the storage compartment 4 through the exhaust duct 16 at the bottom, and as it circulates inside the storage compartment 3 as shown by the arrow in Fig. 4, the inside becomes the refrigerator compartment 3. It is cooled to an equivalent temperature of 0° C. or higher and circulated through an exhaust duct 16 to a cooler chamber 7 having a defrosting heater 17 .

As described above, according to the refrigerator-freezer of this invention, a new storage room is provided at the bottom of the freezer room, and the cold air sent from the cooler room to the refrigerator room is sent to the storage room 4 through the exhaust duct 15. Since the cold air introduced into the storage chamber 4 is circulated through the exhaust duct 16 to the cooler chamber 7, the exhaust duct 15 does not freeze, and a heater as in the conventional case is not required. Defrosting is possible only with the defrosting heater 17 installed for its original function, and furthermore, it is possible to prevent an increase in cost and power consumption caused by providing a heater in the duct 15 as in the conventional case.

Moreover, since the exhaust duct 15 is provided at the front part of the lowest part of the refrigerator compartment 3, the temperature distribution in the refrigerator compartment 3 can be made uniform.

Furthermore, in recent years, refrigerators and freezers have been made to have multiple compartments, with the aim of saving power and preserving food properly.In addition to contributing to the rationalization of these structures, this also contributes to energy savings, uniform temperature distribution, and cost savings. It has the effect of contributing sufficiently to the reduction and proper storage of food by separating it into separate rooms.

[Brief explanation of the drawing]

Figure 1 is an external view showing an example of a refrigerator-freezer according to this invention, Figure 2 is a cross-sectional plan view taken along the line ■-■ in Figure 1, and Figure 3 is a cross-sectional view taken along the line ■-■ in Figure 1. Vertical side view, FIG. 4 is a vertical side view taken along the line IV-IV in FIG. 1. 1... Freezer-refrigerator body, 2... Freezer compartment, 3... Refrigerator compartment, 4... Storage room, 5,
6... Partitioning thermal wall, 7... Cooler room,
Death: Cooler, 11: Cold air blow-off fan, 12: Blow-off duct, 14: Damper thermo, 15: Exhaust duct, 16...
...Exhaust duct, 17...Defrosting heater.

Claims (1)

[Scope of utility model registration request] In a refrigerator-freezer in which a freezer compartment and a refrigerator compartment are arranged on the left and right with an insulating wall as a partition, a food storage compartment is provided at the bottom of the freezer compartment, and an insulating wall is formed between the storage compartment and the refrigerator compartment. At the same time, the storage chamber and the cooler chamber are communicated through a duct formed in the insulation wall between the storage chamber and the freezing chamber, and a part of the cold air from the cooler chamber is transferred to the refrigerator chamber. A refrigerator-freezer characterized in that circulation is performed in the order of a refrigerator compartment, a storage compartment, and a cooler compartment.