JPH0250064A - Refrigerator - Google Patents

Abstract

PURPOSE:To utilize a portion of a dead space for laying a return duct, make the use of thick side walls unnecessary for the second cooling chamber, enlarge the effective content volume of the chamber, and improve the appearance of the refrigerator by passing a return duct at a position ranging with the damper. CONSTITUTION:The inside of a refrigerator 21 is divided, from the top downward, into a freezing chamber 22 as a first cooling chamber, a switching chamber 23 as a second cooling chamber, and a cold chamber 24 as a third cooling chamber with partitions 25a, 25b respectively for the separation. With use of a dead space at the sides of the damper taken into consideration a return duct 41 is passed at the position ranging with the damper 35. A dead space can thus be utilized effectively by forming a return duct therein. As a result, it becomes unnecessary for the side walls at the switching chamber 23 to be made thick and the effective content volume thereof becomes larger. The formation of the return duct 41 does not cause a decrease in the effective content volume of the switching chamber 23 but provides a large space, and moreover, resulting uniformity in wall thickness of the main body 21 lends itself to improvement in appearance of the refrigerator.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention is directed to supplying cold air from a cooler chamber to three cooling chambers vertically partitioned inside a storage body. The present invention relates to a refrigerator having a structure in which supply is circulated back to the post-reading cooler room.

(Prior Art) Refrigerators of this type include those having structures shown in FIGS. 4 to 6. That is, the inside of the refrigerator main body 1 includes, in order from the top, a freezer compartment 2 as a first cooling compartment. Switching chamber as second cooling chamber 3. A refrigerator compartment 4 is formed as a third cooling compartment, a cooler compartment 6 housing a cooler 5 is provided on the back wall of the freezing compartment 2, and a fan 7 is disposed above the cooler compartment 6. By operating a fan 7, cool air in the cooler chamber 6 is supplied to each chamber 2, 3.4 as shown by arrow A in FIG. The cold air supplied to each of the compartments 2, 3.4 is returned to the cooling compartment 6 as shown by arrow B, and in particular, the cold air from the refrigerator compartment 5, which is the third cooling compartment, is returned. A return duct 8 is provided. Since the switching chamber 3 exists between the refrigerating chamber 4 and the cooler chamber 6, the return duct 8 runs through the side wall 3a of the switching chamber 3, as shown in FIGS. 5 and 6. It is configured to pass. Note that damper devices 11.12 are provided on the back surfaces of the switching chamber 3 and the refrigerator compartment 4 to adjust the amount of cold air supplied from the cold air outlet 9.10, respectively.

(Problem to be Solved by the Invention) However, in the above conventional system, the return duct 8
is passed through the side wall of the switching chamber 3, so that the side wall 3
In order to prevent the insulation properties of the switching chamber 3 from decreasing, the thickness of the side wall 3a must be made thicker than other parts, as shown in FIG. 4, which reduces the effective internal volume of the switching chamber 3. In addition, the thickness of the side wall 3a of the main body 1 is thicker than other parts, resulting in a poor appearance.

The present invention has been made in view of the above circumstances, and its purpose is to make the thickness of the side wall of the second cooling chamber thinner than before, thereby increasing the effective internal volume of the second cooling chamber. To provide a refrigerator that can be made large and also have a good appearance.

[Structure of the Invention] (Means for Solving the Problems) The present invention partitions and forms a first cooling chamber, a second cooling chamber, and a third cooling chamber in order from top to bottom inside a storage body,
A cooler chamber is provided on a back wall or a lower wall of the first cooling chamber, and for adjusting the amount of cold air supplied from the cooler chamber to a cold air outlet opened at the back side of the second cooling chamber. A structure in which a damper device is attached and a return duct is provided for circulating cold air in a third cooler chamber to the cooler chamber, and the return duct is passed through a position in the second cooling chamber in line with the damper device. It is characterized by the following.

(Function) In the second cooling chamber, the damper device is located at the rear portion of the second cooling chamber, and the side portions of the damper device are so-called dead spaces that are ineffective for accommodating objects to be cooled. According to the above means, since the return duct is configured to pass through a position parallel to the damper device, the dead space can be used for arranging the return duct, and as a result, the side wall of the second cooling chamber can be There is no need to increase the thickness, and the effective internal volume of the chamber can be increased.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

First, in FIG. 3, 21 is a refrigerator main body, and inside this, from top to bottom, there are freezer compartments 22. Switching chamber 23 as a second cooling chamber. A refrigerating chamber 24 serving as a third cooling chamber is partitioned by partition walls 25a and 25b, respectively. Note that a vegetable compartment 26 (see FIG. 3) is formed as a partition in the lower part of the refrigerator compartment 24.

A cooler chamber 28 in which a cooler 27 is installed is formed on the back wall of the freezer compartment 22, and a fan 29 for circulating cold air is installed in the upper part of the cooler chamber 28. There is. The air cooled by the cooler 27 in the cooler chamber 28, that is, the cold air, is supplied into the freezer compartment 22 from the cold air outlet 30 as shown by arrow A in FIG. 2 by the operation of the fan 29. , the switching chamber 2 through the supply duct 31
3 and a refrigerator compartment 24. The cold air supplied to the freezer compartment 22 and the switching compartment 23 passes through the ventilation holes 32 and 33 formed in the partition wall 25a, respectively, as shown by arrow B, and into the collective duct 34 also formed in the partition 925a. The cold air in the refrigerator compartment 24 is returned to the cooler compartment 28 through the return duct 41 described later and the collection duct 34 described above, as shown by arrow C.

At the cold air outlet 31a of the supply duct 3 on the back side of the switching chamber 23, there is a damper device 35 for adjusting the amount of cool air supplied by controlling the degree of opening or opening/closing of the outlet 31a.
The damper device 35 is comprised of a drive unit 36 that operates depending on the temperature, a damper plate 37 that operates thereby, and the like. The inner part of the switching chamber 23 where the damper device 35 is present is partitioned off by a temporary cover 38 that allows ventilation. In addition, a damper device 3 is also installed on the back of the refrigerator compartment 24 to limit the amount of cold air supplied for one week.
9 is provided.

Reference numeral 40 denotes an air collection duct having openings 40a, 40a that open toward the refrigerator compartment 24, and is formed on the partition wall 25b. Reference numeral 41 denotes a return duct, which is disposed vertically in the inner part of the switching chamber 23 in a position parallel to the damper device 35, one end of which communicates with the air collection duct 40, and the other end of which It communicates with the collection duct 34.

Note that 42 is a heat insulating material disposed around each damper device 35, 39.

Therefore, the cold air in the refrigerator compartment 24 is transferred to the air collection duct 40,
Return duct 41. Furthermore, the aforementioned collective duct 34
The air flows back into the cooler chamber 28 through the air.

In this embodiment with the above configuration, the side portions of the damper device 35 are so-called dead spaces that are not very effective for accommodating objects to be cooled even when the cover plate 38 is not provided. In consideration of this point, in this embodiment, the return duct 41 is configured to pass through a position parallel to the damper device 35, so that the above-mentioned dead space can be effectively used for arranging the return duct. As can be seen from a comparison between FIG. 3 of the embodiment and FIG. 4 of the conventional example, unlike the conventional configuration in which the return duct is passed through the side wall of the switching chamber,
There is no need to increase the thickness of the side wall of the switching chamber 24, thereby increasing the H-flow volume of the switching chamber 24, and since the space in which the return duct 41 is originally provided is a dead space, the return duct 41 is used for switching. The effective internal volume of the chamber 24 is not reduced, and as a whole, a large effective internal volume of the switching chamber 24 can be ensured, and the thickness of the wall of the storage body 21 can be made uniform, so that the external appearance is improved.

In the above embodiment, the cooler chamber 28 is provided on the back wall of the freezing chamber 22, which is the first cooling chamber, but it may be provided on the lower wall, that is, the partition wall 25a. In addition, in the above embodiment, the freezing room is used as the first cooling room, the switching room is used as the second cooling room, and the refrigerator room is used as the third cooling room, but each cooling room is limited to these. It's not a thing.

In addition, the present invention is not limited to the above embodiments, and can be implemented with various modifications within the scope of the gist.

[Effects of the Invention] As is clear from the above description, the present invention partitions and forms a first cooling chamber, a second cooling chamber, and a third cooling chamber in order from top to bottom inside a storage body, A cooler chamber is provided on the back wall or lower wall of the first cooling chamber, and the amount of cold air supplied from the cooler chamber to one cold air outlet opened at the back of the second cooling chamber is adjusted. A damper device is installed for the purpose of cooling, and a return duct is provided for circulating the cold air in the third cooler chamber to the cooler chamber, and the return duct is passed through the second cooling chamber at a position aligned with the damper device. With this, the thickness of the side wall of the second cooling chamber can be made thinner than before, and the reduction in effective space due to the return duct can also be avoided. Since the effective internal volume of the second cooling chamber can be increased and the thickness of the wall of the refrigerator main body can be made uniform, excellent effects such as improved appearance can be achieved.

[Brief explanation of the drawing]

1 to 3 show one embodiment of the present invention, in which FIG. 1 is a cross-sectional plan view taken along the line I-I in FIG. 2, FIG. 2 is an overall cutaway side view, and FIG. FIG. 3 is a front view of the main body. and,
4 to 6 show conventional examples, where FIG. 4 is a diagram equivalent to FIG. 3, FIG. 5 is a diagram equivalent to FIG. 2, and FIG. 6 is a diagram equivalent to FIG. 1. In the figure, 21 is the refrigerator main body, 22 is the freezer compartment (first cooling compartment),
23 is a switching room (second cooling room), 24 is a refrigerator room (third cooling room), 27 is a cooler, 28 is a cooler room, 31a is a cold air outlet, 35 is a damper device, 41 is a return duct It is.

Claims (1)

[Claims] 1. A first cooling chamber, a second cooling chamber, and a third cooling chamber are partitioned in order from top to bottom inside the storage body, and a cooler chamber is formed on the back wall or lower wall of the first cooling chamber. and a damper device for adjusting the amount of cold air supplied from the cooler chamber to the cold air outlet opened at the back side of the second cooling chamber, and the cold air in the third cooler chamber is In those equipped with a return duct for circulation to the cooler room,
A refrigerator characterized in that the return duct is configured to pass through a position of the second cooling chamber in line with the damper device.