JPH0248787Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] The invention has at least a freezer compartment in addition to a refrigerator compartment, and the air in each compartment is repeatedly circulated through a cooler and returned to each compartment. This invention relates to a refrigerator that cools a room.

[Technical background of the invention]

Conventional refrigerators have a refrigerator main body divided into a refrigerator compartment and a freezer compartment, a cooler compartment formed in the partition, a ventilable cooler and a fan installed in the cooler compartment. There is provided a device in which the air in each of the refrigerating and freezing compartments is repeatedly circulated through a cooler and returned to each compartment by the blowing action of the fan, thereby cooling each of these compartments.

[Problems with background technology]

However, in the above-mentioned conventional device, the opening for letting air from the refrigerator compartment flow into the cooler compartment and the opening for letting air from the freezing compartment flow into the cooler compartment are respectively placed in the cooler compartment. Since the wall is formed on the wall facing the ventilation inlet side of the cooler, both the air flowing into the cooler room from the refrigerator compartment and the air flowing into the cooler room from the freezing room can flow from the ventilation entrance side of the cooler. The moisture contained in the passing air is concentrated on the air inlet side of the cooler so as to cover them, and as a result, the amount of airflow in the cooler is reduced at the concentrated frosting area. There was a problem in that the amount of cold air supplied to the refrigerator and freezer compartments decreased, resulting in a decrease in cooling efficiency. In this case, the air flowing from the refrigerator compartment into the cooler room and the air flowing into the cooler compartment from the freezer compartment are relatively hot and humid, so the air from the refrigerator compartment is relatively hot and humid. The concentrated flow into the air inlet side of the cooler caused frost to concentrate there.

[Purpose of invention]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a refrigerator that can prevent concentrated frost formation on the ventilation inlet side of the cooler and prevent a decrease in cooling efficiency.

[Summary of the idea]

The present invention provides a cooling chamber formed in a partition that partitions the inside of the refrigerator body, and a wall portion facing the ventilation inlet side of the cooler that has a port through which air from a room other than the refrigerator compartment flows into the cooler chamber. and openings for allowing air from the refrigerator compartment to flow into the cooler compartment are formed in both side wall portions facing substantially the middle of the left and right side plates of the cooler, so that the air flow in the cooler is prevented. It is characterized by being able to diffuse frost and prevent a decrease in ventilation.

[Example of idea]

An embodiment of the present invention will be described below with reference to the drawings. First, in FIG. 1, reference numeral 1 denotes a refrigerator main body, and inside thereof, a freezing chamber 2, a freezing/refrigerating switching chamber 3, and a refrigerating chamber 4 are partitioned by partitions 5 and 6 in order from the top. A cooler chamber 7 is formed in the partition 5, and a cooler 8 is disposed in the cooler chamber 7. This cooler 8 is
As shown in FIG. 2, an evaporation pipe (not shown) and a large number of fins 10 extending in the front-rear direction are arranged between the left and right side plates 9, 9 to allow ventilation in the direction of arrow A. . Reference numeral 11 denotes a fan driven by a motor 12, which is disposed at the rear of the cooler chamber 7. 13 is a duct for the freezer compartment, 14 is a duct for the freezing/refrigeration switching compartment, and 15 is a duct for the refrigerator compartment. Freezer compartment 2, freezing/refrigeration switching compartment 3, and refrigerator compartment 4 from the side)
It is formed in such a way that it leads to. Reference numeral 16 denotes a mouth for the freezer compartment, which is formed in the wall of the cooler chamber 2 facing the front side, which is the ventilation inlet side of the cooler 8, that is, the upper wall of the front part. The freezer compartment 2, which is a compartment other than the refrigerator compartment 4, and the cooler compartment 7 are communicated with each other. Reference numeral 17 denotes an opening for the freezer/refrigerator compartment, which is formed on the lower wall of the front wall of the cooler chamber 7 facing the front side of the cooler 8;
It communicates with the freezing/refrigerating switching room 3, which is a room other than the refrigerator room 4, and the cooler room 7. Reference numeral 18 denotes a return duct formed on the left and right side walls of the refrigerator body 1 so as to communicate from the refrigerator compartment 4 to the cooler compartment 7, and the opening 19 of the return duct 18 that opens into the cooler compartment 7 is , are formed on the left and right side walls of the cooler 8 facing substantially the middle of the left and right side plates 9, 9, respectively. Here, the duct 14 for the freezing/refrigerating switching room is provided with a damper device (not shown) that changes and adjusts the ventilation amount, and the freezing/refrigering switching room 3 is used as a freezing storage room or a refrigerating storage room. Sho 20
is a damper whose opening and closing are controlled according to the temperature of the refrigerator compartment 4.

In the above configuration, during cooling operation, the air inside each of the freezer compartment 2, freezing/refrigeration switching compartment 3, and refrigerator compartment 4 is moved as shown by arrow B in FIGS. 1 to 3 by the blowing action of the fan 11. The circulation that returns to each chamber 2, 3, and 4 through the cooler 8 is repeated, whereby the freezing chamber 2 is cooled to a predetermined freezing temperature, and
The refrigerator compartment 4 is cooled to a predetermined refrigeration temperature, and the freezing/refrigeration switching chamber is cooled to a predetermined freezing temperature or refrigeration temperature. Here, the air from the freezer compartment 2 and the frozen
The air from the refrigerating switching chamber 3 flows through the openings 16 and 17.
The air flows into the ventilation inlet side (front side) of the cooler 8 in the cooler chamber 7 through the cooler chamber 7 and passes through the cooler 8 from the front side to the rear side, while the air from the refrigerator compartment 4 passes through the opening 19 of the return duct 18 and is cooled. It flows into the substantially intermediate portions of the left and right side plates 9, 9 of the cooler 8 in the container chamber 7, branches and diffuses upward and downward from the intermediate portion, and passes through the cooler 8 to the rear side. Therefore, the circulating air is dispersed without concentrating on the ventilation inlet side of the cooler 8, and especially the air from the refrigerator compartment 4, which is relatively hot and humid air, is distributed by the side plates 9, 9 of the cooler 8. The frost is diffused vertically, and the frost is generally not concentrated on the ventilation inlet side of the cooler 8, and the frost is diffused. As a result, the reduction in the amount of ventilation in the cooler 8 can be suppressed, and thus each room 2, It is possible to suppress the decrease in the amount of cold air supplied to the third and fourth embodiments, thereby preventing a decrease in cooling efficiency.
By the way, especially when the freezing/refrigerating switching chamber provided in the refrigerator of this embodiment is used as a refrigerating storage chamber, the absolute amount of hot and humid air increases; Cooler 8 in section 19
Since the air flows into the substantially central portion of both side plates 9, 9, concentrated frost will not form on the cooler 8 even if the amount of hot and humid air increases.

There is a concern that defrosting warm air will naturally flow into the return duct 18 when defrosting the cooler 8, but since the mouth 19 of the return duct 18 faces the side plate 9 of the cooler 8, The part takes the form of a trap to prevent the inflow of warm air as much as possible.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but can also be applied to, for example, a refrigerator having only a freezer compartment in addition to a refrigerator compartment.

[Effects of the Invention] As is clear from the above description, the present invention has the effect of preventing concentrated frost formation on the ventilation inlet side of the cooler and preventing a decrease in cooling efficiency.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Figure 1 is an overall vertical sectional side view, Figure 2 is a cross-sectional plan view of the main part, and Figure 3 is a cross-sectional side view of the main part.
The figure is also a longitudinal sectional front view of the main parts. In the figure, 1 is the refrigerator body, 2 is the freezer compartment, 3 is the freezing/refrigeration switching compartment, 4 is the refrigerator compartment, 7 is the cooler compartment, 8 is the cooler, 11 is the fan, and 16, 17, and 19 are the mouth parts. be.

Claims (1)

[Scope of utility model registration request] In addition to the refrigerating chamber, at least a freezing chamber is formed in the refrigerator main body by dividing it into upper and lower sections by a partition, and a cooler chamber is formed within the partition, and the air from each of the refrigerating and freezing chambers is arranged in the cooler chamber. In the cooling device, each chamber is cooled by repeating circulation through a ventilable cooler and returned to each chamber, wherein the refrigerator is provided on a wall portion of the cooler chamber facing the ventilation inlet side of the cooler. An opening is formed to allow air from a room other than the refrigerator compartment to flow into the cooler compartment, and the air from the refrigerator compartment is supplied to both side wall portions facing substantially the middle of the left and right side plates of the cooler. A refrigerator characterized in that a mouth is formed to allow flow into the refrigerator.