JPS6011311B2 - Freezer refrigerator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a refrigerator-freezer, and more particularly, to a refrigerator-freezer equipped with a dedicated freezing compartment and a dedicated refrigerating compartment. This relates to a refrigerator-freezer that can

In conventional refrigerator-freezers, the volume of the dedicated freezing compartment was smaller than that of the refrigerating compartment because there were fewer frozen foods stored inside the refrigerator.

However, recently, large quantities of frozen foods have become available, and the proportion of dedicated freezer compartments in refrigerators has been increasing year by year. Therefore, when consumers purchase a refrigerator-freezer, they are concerned about how much more space the freezer compartment will require compared to the refrigerator compartment. The present invention was invented to eliminate this consumer concern, and consists of a dedicated freezer compartment, a dedicated refrigerated compartment, and a freezer/refrigeration compartment, and the indoor temperature of the frozen/refrigerated compartment can be changed via a rear mechanism. By making the indoor temperature of the freezer/refrigerator room variable via the variable temperature converter and switching the freezer/refrigerator compartment into a freezer compartment or a refrigerator compartment,
The capacity of the refrigerator compartment and freezer compartment can be increased or decreased as needed.

The details of the present invention will be explained below with reference to an embodiment shown in the drawings.The main body of the Kawama refrigerator has a freezing/refrigerating compartment in addition to a freezing compartment and a refrigerating compartment.

Reference numeral 2 denotes a door that closes the front closing portion of the freezer compartment, 3 a door that closes the front entrance of the refrigerator compartment, and 4 a door that closes the front opening □ of the freezer/refrigerator compartment that serves as a switching chamber.

5 indicates the previous freezer compartment, and 6 indicates the freezing/refrigerating compartment which is a switching compartment.

7 is a condenser, and 8 is a compressor, which are installed in the machine room.

This is a partition wall that partitions a freezing room 5 and a freezing/refrigerating room 6.

Reference numeral 11 denotes a cooler provided on the back side of the freezer/refrigerator compartment 6, and together with the condenser 7, compressor 8, etc., constitutes a refrigeration cycle.

Reference numeral 12 denotes a partition plate provided on the front side of the cooler 11, and its upper end is connected to a duct plate 13 that guides the cold air that has been cooled by the cooler 11 to the freezer compartment 5.

Reference numeral 14 indicates a cold air outlet provided at the upper part of the duct plate 13.

Reference numeral 15 denotes a blower provided at the cold air discharge hole 14, and is driven by a drive motor 6.

Reference numeral 17 indicates a cold air blowing hole to the freezer compartment 5.

Reference numeral 18 denotes an ice-making chamber provided immediately near the blow-off hole 17.

Reference numeral 19 denotes a partition duct plate that guides a portion of the cold air discharged from the discharge hole 14 by the blower 15 to the freezing/refrigerating chamber 6 or the pressure chamber.

This partition duct plate 19 forms the apparent back surface of the freezer compartment. This partition duct plate 19 is divided into a duct plate main body 19a and an auxiliary duct plate 19b having a suction port 20 (described later). As shown in the figure, this dividing position is where the lower end of the cooler is located behind the auxiliary duct plate. By doing this, when dealing with complaints such as frost clogging of the cooler, it is possible to easily remove only this auxiliary plate 19b without removing the entire duct plate 19, and the cooler can be removed from the suction port 20. It is possible to constantly monitor the frosting condition at the lower end. 2 rivers middle partition wall 1
This is the cold air inlet of the freezer compartment 5 provided with a stream.

A portion of the air is blown out into the refrigerator compartment 6 through a cold air passage 21 and a cold air passage 22 formed in the partition wall 10 between the two suction ports, and the remainder reaches the pressure chamber through a passage described later. 23 is a damper thermostat that adjusts the amount of cold air blown into the refrigerator compartment 6 through the cold air passage 22.

24 indicates a cold air blowing hole to the freezer/refrigerator compartment.

Therefore, one end of the cold air passage 22 having the damper thermostat 23 is connected to the cold air blowing hole 24 . Reference numeral 25 indicates a pressure chamber in which one end of a cold air passage 26 formed between the cold air passage 22 and the duct plate 13 and the partition duct plate 19 is closed.

27 is a partitioning thermal wall provided to form a return passage 28 between it and the switching plate 12 provided at the front of the cooling room 11, and also to form an apparent back wall of the freezing/refrigerating room 6. .

Further, the return passage 28 has an end open to the previous pressure chamber 25,
The pond end is closed to the cold air suction port 29 of the freezer/refrigerator room. 3
This is a switching damper provided within the pressure chamber 25.

This switching damper 30 is connected to the cold air passage 26 and the cold air passage 21.
This selects whether the cold air entering the pressure chamber 25 is sent to the cold air return passage 28 side or to the air outlet hole 24 side of the freezer/refrigerator compartment. It is done. 32 is a heating element attached to the upper surface of the partition duct plate, and this heating element 32 prevents dew from forming on the surface of the partition duct plate 19 due to temperature difference (temperature difference between the back and front of the partition duct plate), and Used to prevent overcooling of switching chambers, etc.

As shown in FIG. 3, 33 indicates a gutter passage formed by recessing one stage in the depth direction at both ends of the partition duct plate.

The mist adhering to the surface of the partition duct plate through this gutter 33 is guided to a reservoir 36 provided at the bottom of the inner box 6a forming a freezing/refrigerating room. Reference numeral 34 denotes a recess provided at the lower end of the duct plate main body 19a of the partition duct plate so as to be recessed toward the cooler 11 side.

The opening of this recess 34 is closed by the auxiliary duct plate 19b, but inside the recess 34 is the heating element 3.
The second class lead wire 35 and the connection portion of the lead wire are housed therein. By doing so, it is also possible to partially assemble the partition duct plate and the heating element in advance. Here, to explain how to use the freezer/refrigerator compartment, which is the operating room of the above-mentioned refrigerator, (first, an example in which the freezer/refrigerator compartment is used as a refrigerator compartment), at this time, the switching damper 30 is connected to the cold air passage as shown by the solid line in Figure 2. The 28 side communicates with the pressure chamber 25, so that the passage of the cold air blowing hole 24 is closed.

In this state, when the refrigerator starts operating, the cold air cooled by the cooler 11 passes through the duct plate and reaches the blower 1.
5, most of which flows from the cold air outlet 17 to the freezer compartment 5.
On the other hand, the remaining cold air reaches the pressure chamber 25 from the cold air passage 26, and then returns to the cooler 111 via the cold air passage 28.

In addition, the cold air blown into the freezer compartment 5 is sucked in through a cold air suction port 20 provided in the partition wall after cooling the interior of the freezer compartment 5, and then communicates with a cold air passage 22 in which a damper thermostat 23 is provided and a pressure chamber. It reaches the cold air passage 21 (at this time, the cold air is distributed by the damper thermometer 23).
. The cold air that has passed through the cold air passage 21 then returns to the cooler 11 via the pressure chamber 25 and the cold air passage 28. On the other hand, cold air passage 2
The cold air that has passed through 2 constitutes a cold air circulation path where it is returned to the middle of the cooler via the cold air suction port 29 after cooling the freezer/refrigerator compartment 6 to a temperature equal to the refrigerator compartment temperature.
8qo, and the refrigerator compartment 6 obtains a temperature of 12°C. In addition, a switching damper 30 is installed to use the inside of the freezer/refrigerator compartment 6 as a freezing compartment.
If the cold air is moved so as to close the cold air passage 28 side, the cold air is directly transferred to the pressure chamber 2 through the cold air passage 26 in the previous cold air circulation path.
5 and the cold air reaching the pressure chamber 25 through the cold air passage 21 in the partition wall are all blown out into the freezing/refrigerating room 6. Incidentally, at this time, the damper thermo in the cold air passage 22 is completely sealed. As explained above, the present invention has a freezing compartment in the upper part and a switching compartment in the lower part via a partition wall, and a cooler is installed at the back of the switching compartment, and the cold air cooled by this cooler is installed in the back of the freezing compartment. After the cold air is blown into the freezer compartment by a blower, part of the cold air is discharged into the switching room through a cold air passage with a damper thermometer installed in the partition wall, and the remaining cold air is sent into the partition wall. The amount of cold air blown out is distributed to the cold air blowing section to the freezer compartment to form a series of cold air roads configured to return the cold air to the cooler through the provided pressure chamber and return the cold air from the switching chamber to the previous cooler. A partition duct plate is provided to flow cold air into the pressure chamber within the partition wall, and a passageway is formed in the pressure chamber to lead the cold air to the switching chamber or the cooler. A damper is provided to selectively switch between the blowout hole and the inlet of the return passage to the cooler, and a passage returning from the pressure chamber to the cooler is provided between a partition plate provided at the front of the cooler and a partitioning thermal wall. In addition to forming a return port for the cold air discharged into the switching chamber, a return port for the cold air discharged into the switching chamber is provided below the partitioning thermal wall and in a portion located at the lower end of the cooler. It is equipped with a gutter section that guides the mist adhering to the duct plate itself to the reservoir section provided at the bottom of the inner box, so it goes without saying that the volume ratio between the freezer compartment and the refrigerator compartment can be easily increased or decreased as needed. In the case of the refrigerator of the invention, if the switching chamber is used as a refrigerator compartment, part of the cold air in the freezing compartment is circulated,
It can be used as a regular refrigerator.

In addition, in the case of the present invention, since the amount of cold air is adjusted in the pressure chamber provided within the partition wall, the air passage structure can be simplified and no dead space can be created inside the refrigerator. It's something that doesn't exist.

Furthermore, the dew that adheres to the partition wall or the partition duct plate itself is guided to the reservoir at the bottom of the inner box from the recessed part (gutter part) integrally formed on both sides of the partition duct in the depth direction. As a result, dew does not flow down the front of the partition duct plate and spoil the appearance, and since dew does not enter the cooler side through the suction port provided on the partition duct plate, there is no need to worry about the mist freezing. However, it is possible to obtain various useful effects.

[Brief explanation of the drawing]

FIG. 1 is a front view of a refrigerator-freezer equipped with the present invention, FIG. 2 is an enlarged cross-sectional view taken along line A-A in FIG. 1, FIG. 3 is a detailed perspective view of the partition duct plate, and FIG. It is a detailed cross-sectional view of the slope part of a similar partition duct. 1... Refrigerator body, 2, 3, 4... Door, 5... Freezer compartment, 6... Freezer/refrigerator compartment, 6a
...Inner box, 7...Condenser, 8...
...Compressor, 9... Machine room, 10...
Inner partition wall, 11... cooler, 12... partition plate, 13... duct plate, 14... cold air discharge hole, 15.... ...Blower, 16...Drive motor, 17...
・・Cold air outlet, 18・・Ice making room, 19・・・
・Partition duct plate, 19a...Duct plate main body, 1
9b... Auxiliary duct plate, 20... Cold air suction port, 21... Cold air passage, 22... Cold air passage, 23... Damper thermo, 24...Cold air outlet, 25...Pressure chamber, 26...Cold air passage, 27...Partitioning thermal wall, 28...Return passage, 2
9...Cold air intake port, 30...Switching damper, 31...
・Lever, 32... Heating element, 33...
Iso part of partition duct plate, 34... Recessed part, 35...
...Lead wire, 36...Reservoir. Many 1 drawing, 2 drawings, many 4 drawings.

Claims (1)

[Scope of Claims] 1. A freezing compartment is provided in the upper part and a switching compartment is provided in the lower part via a partition wall, a cooler is installed at the back of the switching compartment, and the cold air cooled in this cooling compartment is installed at the back of the freezing compartment. After blowing out the cold air into the freezer compartment with a blower, part of the cold air is discharged into the switching room through a cold air passage with a damper thermometer installed in the partition wall, and the remaining cold air is sent into the partition wall. The amount of cold air blown out is distributed to the cold air blowing section to the freezer compartment to form a series of cooling passages configured to return the cold air from the switching chamber to the cooler through the provided pressure chamber and return the cold air from the switching chamber to the previous cooler. A partition duct plate is provided to flow cold air into the pressure chamber within the partition wall, and a passageway is formed in the pressure chamber to lead the cold air to the switching chamber or the cooler. A damper is provided to selectively switch between the blowout hole and the inlet of the return passage to the cooler, and a passage returning from the pressure chamber to the cooler is provided between a partition plate provided at the front of the cooler and a partitioning thermal wall. In addition, a return port for the cooling discharged into the switching chamber is provided below the partitioning thermal wall and at the lower end of the cooler, and on both sides of the partition duct plate, the upper surface of the middle partition wall or the partition duct plate itself is provided. A refrigerator-freezer characterized by being provided with a gutter portion that guides dew adhering to the inner box to a reservoir provided at the bottom of the inner box. 2. A damper section that roughly divides the volume of the box into two is housed inside the box so that it can be externally operated via a lever, and one side faces the pressure chamber and the other side faces the return passage 28 to the cooler and the cold air discharge hole 24. A switching damper consisting of the box-shaped damper section and a lever is installed on the side, and the switching damper has two passages 28, 2 in the center of the switching damper on the side opposite to the pressure chamber.
4. The refrigerator-freezer according to claim 1, wherein the partitioning thermal walls are brought into contact with each other so as to form a partition wall. 3 Forming vertical gutter sections recessed in the depth direction on both sides of the partition duct plate, which is divided into two parts, the duct plate main body and the auxiliary duct plate,
2. The refrigerator-freezer according to claim 1, wherein dew is prevented from entering the cooler through a suction port formed in the auxiliary duct plate.