JPH0248786Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention provides a refrigerator that has a freezer compartment, a refrigerator compartment, and a freezing/refrigeration switching compartment, and each of these compartments is supplied with cool air from a cooler by a fan. Regarding.

[Technical background of the invention]

Recently, in refrigerators, a freezer compartment, a refrigerating compartment, and a freezing/refrigerating switching compartment are formed into partitions in the main body, and a cooler compartment is formed in one of the partitions, and a cooler compartment is formed in the rear side of the cooler compartment. A fan chamber is formed in communication with this, and a ventilation section is formed in the main body of the refrigerator that leads from this fan chamber to each of the above-mentioned freezing/refrigeration and freezing/refrigeration switching chambers, and a ventilation section that leads from each of these chambers to the cooler room. and supply cold air from a cooler disposed in the cooler chamber to each of the above-mentioned chambers by the blowing action of a fan disposed in the fan chamber;
In this case, by changing the amount of cold air flowing into the freezing/refrigerating switching chamber using a damper device, etc., the freezing/refrigerating switching chamber can be used as either a freezing storage room or a refrigerating storage room. It is provided.

[Problems with background technology]

By the way, in this type of refrigerator, it is necessary to set the temperature of the refrigerating compartment higher than that of the freezing compartment, so the amount of cold air supplied to the refrigerating compartment is kept low and set so that it remains approximately constant. ing. However, in such refrigerators, the amount of cold air supplied to the freezer/refrigeration switching compartment is changed to match the purpose, so the amount of cold air supplied to the freezer and refrigerator compartments also increases or decreases depending on the change in the amount of cold air supplied. However, in this case, since a large amount of cold air is originally supplied to the freezer compartment, the amount of increase or decrease in the amount is small overall and does not pose a problem, but the refrigerator compartment is originally cooled to the specified refrigeration temperature with a small amount of cold air. As a result, the rate of change in the amount of cold air supplied becomes extremely large, making it impossible to maintain a predetermined refrigeration temperature.

[Purpose of invention]

Therefore, the purpose of the present invention is to prevent fluctuations in the amount of cold air supplied to the refrigerator compartment, regardless of changes in the amount of cold air supplied to the freezer/refrigerator compartment, in a device that has a freezer compartment, a refrigerator compartment, and a freezer/refrigerator switching compartment. There is a refrigerator available.

[Summary of the idea]

The present invention forms a freezer compartment, a refrigerator compartment, a freezing/refrigeration switching compartment, and a cooler compartment and a circular fan compartment in the refrigerator main body, and cool air from a cooler installed in the cooler compartment is transferred to the fan compartment. The cooling, refrigerating, and freezing/refrigerating switching chambers are supplied with air by the blowing action of a fan provided concentrically with the fan chamber, wherein the peripheral wall of the fan chamber is
Along the rotational direction of the fan, a first air supply area having a large angular range having a first non-opening wall portion and a freezer compartment air supply port, and a second non-opening wall portion and a refrigerator compartment air supply port. a second air supply area having a small angular range, a third non-opening wall part longer than the second non-opening wall part, and an air supply port for a freezing/refrigeration switching room, and having a small angular range; On the other hand, if the amount of cold air supplied from the air supply port for the freezer/refrigerator switching room to the freezer/refrigerator switching room changes, the change The feature is that the amount can be absorbed by the freezer compartment air supply port located next to the freezing/refrigeration switching compartment air supply port in the direction of rotation of the fan.

[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, in order from the top, a freezing chamber 2, a freezing/refrigerating switching chamber 3, and a refrigerating chamber 4 are partitioned by partitions 5 and 6. Reference numeral 7 denotes a cooler chamber, which is formed in the partition 5 that partitions between the freezing chamber 2 and the freezing/refrigerating switching chamber 3, and a cooler 8 is disposed in the cooler chamber 7. . Reference numeral 9 denotes a partition plate disposed at the rear of the cooler chamber 7, on which a bell mouth 10 is formed. Reference numeral 11 denotes a circular fan chamber, which is formed by the partition plate 9 and a concave portion 12 formed on the back wall of the refrigerator main body 1 behind the partition plate 9. 13 is a fan driven by a fan motor 13a, which is provided in the fan chamber 11 so as to be located concentrically with the fan chamber 11,
The fan 13 is adapted to be rotated in the direction of arrow A in FIG. Now, in FIG. 2, the peripheral wall portion of the fan chamber 11 (the peripheral wall portion of the concave portion 12) forms a first air supply area having a large angular range along the rotational direction (direction of arrow A) of the fan chamber 13. 14, a second air supply area 15 with a small angle range, and a third air supply area 16 with an intermediate angle range with respect to both air supply areas 14 and 15. The wind area 14 has a first non-opening wall 14a and a freezer compartment air supply port 14b, and the second air supply area 15 has a second non-opening wall 15a and a refrigerator compartment air supply port 15b. A third non-opening wall portion 16a is provided in the third air supply area 16.
and a freezing/refrigeration switching room air supply port 16b are formed, respectively. The length B of the third non-opening wall portion 16a is set to be longer than the length C of the second non-opening wall portion 15a, and in this case, the refrigerating room air supply port 1
The opening range D of 5b is set to be smaller than the length B of the third non-opening wall portion 16a. Therefore, the air supply port 14b for the freezer compartment is connected to the freezer compartment 2 via the duct 17.
The air supply port 15b for the refrigerator compartment communicates with the refrigerator compartment 4 via the duct 18, and the air supply port 16b for the freezer/refrigeration switching room communicates with the freezer/refrigeration switching compartment 3 via the duct 19. Further, in the front part of the partition part 5, there is a vent 20 that communicates from the freezer compartment 2 to the cooler compartment 7.
A vent 21 is formed to communicate from the freezing/refrigeration switching chamber 3 to the cooler chamber 7, and a duct 22 communicating from the refrigerator chamber 4 to the cooler chamber 7 is formed on the left and right side walls of the refrigerator body 1.
is formed. Here, the duct 19 is provided with a damper device (not shown) that changes and adjusts the amount of cold air supplied, and depending on the amount of cold air supplied by the damper device, the freezing/refrigerating switching chamber 3 is switched to the freezing mode. It is designed to be used as a storage room or refrigerated storage room. Note that 23 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 cooler 8
The cold air is blown into the fan chamber 11 by the blowing action of the fan 13, and the cold air is blown into the fan chamber 11 through the respective air supply ports 14b and 15.
b, 16b, each duct 17, 18,
19 to the freezer compartment 2, refrigerator compartment 4, and freezing/refrigeration switching compartment 3, and each of these compartments 2, 4, 3
The coolant is returned to the cooler chamber 7 through the vent 20, duct 22, and vent 21, is cooled again in the cooler 8, and goes to each chamber 2, 4, and 3, and the cycle is repeated. Room 2, Refrigerator room 4, Freezer/
The refrigerating switching chamber 3 is cooled.

Here, the amount of cold air supplied to each chamber 2, 4, and 3 will be described. That is, the cold air blown into the fan compartment 11 is sent from the freezer compartment air supply port 14b to the freezer compartment 2,
From the refrigerator compartment air supply port 15b to the refrigerator compartment 4,
The air is supplied from the refrigerating compartment air supply opening 16b to the freezing/refrigeration switching compartment 3, but in this case, the air supply opening 14b for the freezing compartment is supplied from the front stage in the rotation direction of the fan 13 (direction of arrow A) Cold air pressurized by the first non-opening wall portion 14a flows in an amount equivalent to the opening area of the freezer compartment air supply port 14b,
That is, an amount of cold air corresponding to approximately the angular range of the first air supply region 14 is supplied to the freezer compartment 2,
Similarly, the amount of cold air corresponding to the angular range of the second air supply area 15 is supplied to the refrigerator compartment 4, and the amount of cold air corresponding to the angular range of the third air supply area 16 is supplied to the freezer/refrigeration switching compartment 3. A corresponding amount of cold air is supplied to each room, and as a result, each room 2, 4, 3 receives a large amount of cold air, a small amount of cold air, or an intermediate amount of cold air commensurate with the air supply area 14, 15, 16. Quantities are supplied on a basis. By the way, the freezing/refrigerating switching room 3 is used as a freezing storage room or a refrigerating storage room by changing the cold air supply amount by adjusting a damper device (not shown). Naturally, the amount of ventilation at the air outlet 16b changes, but the amount of cold air supplied to the refrigerator compartment 4 does not change. That is, when the refrigerating room air supply port 15b is used as a reference, the second non-opening wall portion 15 is located at the front stage in the rotational direction of the fan 13.
In contrast to a, since the length of the third non-opening wall 16a which is the next stage is long, the air pressure in the third non-opening wall 16a becomes high, and therefore cold air flows into the refrigerator compartment air supply port 15b. As the influx began to flow steadily,
The amount of cold air supplied to the refrigerator compartment 4 is maintained approximately constant, and as a result, the amount of change in the amount of cold air supplied to the freezer/refrigeration switching compartment 3 is reduced by the amount of cold air supplied to the freezer/refrigeration switching compartment 1.
The cold air is absorbed by the freezer compartment air supply port 14b, which is the next stage in the direction of rotation of the fan 13 relative to the cooling air 6b, and therefore, fluctuations in the amount of cold air supplied to the refrigerator compartment 4 can be prevented. Particularly in this case, the opening range D of the refrigerator compartment air supply port 15b
On the other hand, since the length B of the third non-opening wall portion 16a, which is the next stage, is set to be long, fluctuations in the amount of cold air supplied to the refrigerator compartment 4 can be prevented more reliably.

[Effect of idea]

As is clear from the above description, this invention
To prevent variations in the amount of cold air supplied to the refrigerating compartment regardless of changes in the amount of cold air supplied to the refrigerating switching room, and thereby to have the excellent effect of constantly cooling the refrigerating compartment to a stable refrigerating temperature.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is an overall longitudinal sectional side view, and FIG. 2 is an enlarged sectional view of a fan chamber portion viewed from the back. In the figure, 1 is the refrigerator main body, 2 is the freezer compartment, 3 is the freezing/refrigeration switching room, 4 is the refrigerator compartment, 7 is the cooler compartment, 8 is the cooler, 11 is the fan compartment, 13 is the fan, and 14 is the first
14a is the first non-opening wall portion, 14b is the air supply area of
15 is the air supply port for the freezer compartment, 15 is the second air supply area, 15
a is a second non-opening wall portion, 15b is a refrigerating room air supply port, 16 is a third air supply area, 16a is a third non-opening wall portion, and 16b is a freezing/refrigeration switching room air supply port.

Claims (1)

[Scope of utility model registration request] A freezer compartment, a refrigerator compartment, and a freezing/refrigeration switching compartment are formed in the main body of the refrigerator, and a cooler compartment and a circular fan compartment are formed, and cold air from a cooler provided in the cooler compartment is transferred to the fan compartment. In a device in which air is supplied to each of the freezing, refrigerating, and freezing/refrigerating switching chambers by the blowing action of a concentrically provided fan, A first air supply area having a large angular range including a first non-opening wall portion and an air supply port for the freezer compartment, and a second air supply area having a small angular range including a second non-opening wall portion and an air supply port for the refrigerator compartment. a third non-opening wall section that is longer than the second non-opening wall section, and a third non-opening wall section having an air supply port for the freezing/refrigeration switching room, and having an angular range intermediate between the two angular ranges. A refrigerator characterized in that the refrigerator is divided into an air supply area and an air supply area.