JPS6011307B2 - 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 dedicated refrigerating compartment because there were fewer frozen foods than the refrigerated 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 refrigeration compartment. Therefore, the present invention was invented in order to solve the above-mentioned problems of the secondary system, and consists of a dedicated freezer compartment, a dedicated refrigerated compartment, and a frozen/refrigerated compartment. By making the freezing and refrigerating compartment variable and switching between the freezing and refrigerating compartments, the volumes of the refrigerating compartment and the freezing 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. Reference numeral 1 denotes a refrigerator body, which has a freezing and refrigerating compartment in addition to a freezing compartment and a refrigerating compartment.

Reference numeral 2 denotes a door that closes the front opening of the freezer compartment, 3 a door that closes the front opening of the refrigerator compartment, and 4 a door that closes the front entrance of the freezer/refrigerator compartment, which is a switching compartment.

5 indicates the freezer compartment, 6 indicates the freezer/refrigerator compartment which is a switching compartment, 7 is a condenser, 8 is a compressor, which is installed in the machine room 9, and 10 is the freezer compartment 5 and the freezer/refrigerator compartment. This is a partition wall that separates 6 and 6.

The bottom of the partition wall 10 is provided with an uneven groove, the bottom is inclined rearward, and is connected to a partition thermal wall to be described later. Reference numeral 11 denotes a cooler provided on the back wall of the freezer/refrigerator compartment 6, which together with the condenser 7, compressor 8, etc., forms a refrigeration cycle.

Reference numeral 12 denotes a partition plate provided on the front surface of the cooler 11, the upper end of which is connected to a duct plate 13 that guides the cold air rejected by the cooler 11 to the freezer compartment 5.

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

Reference numeral 15 denotes a blower provided at the cold air discharge shaft 14, which is driven by a drive motor 16.

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 is a cold air inlet of the freezer compartment 5 provided in the partition wall 10 between the two rivers.

A portion of this suction port 20 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, and the remainder reaches the pressure chamber based on 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 Gumper thermometer 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 partition plate 12 provided at the front of the cooler 11, and also to form an apparent back wall of the freezer/refrigerator compartment 6. .

Further, the return passage 28 has one end connected to the pressure chamber 25,
The other end opens to a cold air suction port 29 of the freezer/refrigerator compartment. 3
0 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 to send the cold air entering the pressure chamber 25 to the cold air return passage 28 side or to the cold air blowing hole 24 side of the freezer/refrigerator compartment. This is done by the user. Here, we will explain how to properly use the refrigerator-freezer, which is the switching chamber of the refrigerator. (Example where the freezing/refrigerating room is first changed to the cold storage room) In this case, the switching damper 30 is moved to the cold air passage 2 as shown in FIG.
The 8th side communicates with the pressure chamber 25, and the cold air outlet 24 side is closed. When the refrigerator starts operating in such a state, the cold air cooled by the cooler 11 passes through the duct plate and reaches the blower 15, and most of it is blown out from the air outlet 17 into 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 11 via the cold air passage 28. The cold air blown into the freezer compartment 5 cools the inside of the freezer compartment 5, and then is sucked in through the air suction port 20 provided in the partition wall, and then passes through the cold air passage 22 in which the Dasovar thermometer 23 is installed and the cold air passage leading to the pressure chamber. It reaches 21. (In addition, the cold air distribution at this time is the damper thermometer 23 mentioned earlier.
It is done depending on. ) The cold air that has passed through the cold air passage 21 returns to the cooler 11 via the pressure chamber 25 and the cold air passage 28. On the other hand, the cold air passing through the cold air passage 22 cools the freezer/refrigerator compartment 6 to a temperature equal to the refrigerator compartment temperature, and then enters the cold air suction port 22.
It constitutes a cold air circulation system path through which the cold air is returned to the middle of the cooler.
The temperature of the freezer compartment is, for example, -18°C, and the temperature of the refrigerator compartment 6 is 12°C. In addition, when the switching damper 30 is moved to block the cold air passage 28 side as shown in FIG. 26 and directly reaches the pressure chamber 25,
All of the cold air that reaches the pressure chamber 25 via the cold air passage 21 in the partition wall is blown out into the freezing/refrigerating compartment 6.

At this time, the damper thermo in the cold air passage 22 is completely sealed. Here, the structure of the switching damper 30 that uses the freezer/refrigerator compartment 6 as a freezing compartment or a refrigerator compartment will be explained.This switching damper 30 has a structure in which the damper 30a portion slides by operating the lever 31. It's a place to move. That is, the lever 31 causes the damper 31a to always close one of the two passages provided in the switching damper 31 (the passage to the cooler 11 (cold air passage 28) and the passage leading to the cold air outlet 24). It moves around the center. Next, to describe the partitioning thermal wall 27 forming the cold air passage 28, this insulation wall 27 is connected to the temperature of the cold air returned through the cold air passage 28 when the freezer/refrigerator compartment 6 is used as a refrigerator compartment, and the temperature inside the freezer/refrigerator compartment 6. The wall thickness is sufficient to prevent fogging from occurring due to temperature differences between the 32 is a heating element attached to the surface of the partitioning thermal wall 27.

This heating element 32 is provided for the purpose of preventing fog from forming on the surface of the partitioning thermal wall 27 when the switching chamber 6 is used as a refrigerating room by operating the bar 31 described above. This prevents the temperature inside the chamber 6 from being cooled more than necessary. That is, on the back side of this partitioning thermal wall 27, there is a passage through which part of the cold air cooled by the cooler and the low-temperature cold air after cooling the freezer compartment pass, so a temperature difference is created and a heating element is placed on the surface of the partitioning thermal wall. If there is no water, there will be a lot of dew. The heating element above the tree also ensures the prevention of overcooling inside the warehouse. 3
3 is a dew reservoir provided at the bottom of the switching chamber 6.

This mist reservoir part 33 reaches the rear partitioning thermal wall along the uneven grooves provided at the bottom of the inner partition wall 10 in conjunction with the rear slope of the partition wall 10, and the dew flowing on the surface thereof is shown by the arrow. This leads to the mist reservoir section 33 mentioned earlier. The details of the switching damper 31 described above will be explained with reference to FIG. 4. As shown in the figure, the switching damper 31 has a box body 31b, and the volume of the box body 30b is approximately 2.
It consists of a divided damper part 31a, a lever 31, etc., and one side faces the pressure chamber 25 side, and the other side faces the return passage 28 to the cooler and the cold air discharge hole 24 side. Therefore, the lever 31 is connected to the sliding portion 30 provided on the damper portion 31a.
When the lever is rotated in the direction of the arrow around the fulcrum 31a provided on the partition thermal wall 27, the lever's locking portion 31b moves along the sliding portion 30c, and the damper portion is moved from the position shown by the solid line to the position shown by the imaginary line.

Reference numeral 30b is a concave groove that absorbs changes in the length of the locking portion 31b of the lever in the height direction.

Reference numeral 30e denotes a guide portion for guiding cold air formed integrally with or separately from a portion of the damper, and the side on which this guide portion 30e is located faces the pressure chamber side.

Further, the partitioning thermal wall 27 is in contact with a substantially central portion of the switching damper, and depending on the position of the damper part 30a, the return passage 28 side to the cooler is opened or the cold air discharge hole 24 side is closed. It is something. As explained above, the present invention includes a freezer compartment in the upper part and a switching compartment in the lower part through a partition wall, a cooler installed at the back of the switching compartment, and the cooled air cooled by this cooler to be frozen. After blowing into the freezer compartment with a blower installed at the back of the room, some of the cold air is discharged into the switching room via a cold air passage with a damper thermometer installed in the partition wall, and the remaining cold air is sent through the partition wall. In order to form a series of cold air passages configured to return cold air to the cooler through a pressure chamber provided in the wall, and to return cold air from the zero switching chamber to the previous cooler, a cold air outlet to the freezer compartment is provided. In addition to providing a partition duct plate that divides the amount of cold air blown out and guides the cold air to the pressure chamber within the partition wall,
A switching damper that forms a passage in the pressure chamber to lead cold air to the switching chamber or the cooler, and selectively switches between an air outlet to the switching chamber and an inlet of the return passage to the cooler in the pressure chamber. Of course, the refrigerator of the present invention can easily increase or decrease the volume ratio between the freezer compartment and the refrigerator compartment as needed. It is possible to partially circulate the refrigerator and use it 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 configuration of the wind section can be simplified, and there is no need to create an invalid guest room inside the refrigerator. be. Furthermore, the switching damper used in the present invention can be operated externally and has a simple structure, which makes it cost effective, and it is equipped with a cold air guiding section, so it can improve the flow of cold air. It is something.

Furthermore, an air passage can be easily created by combining a switching damper and a partitioned thermal wall.

[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. FIG. 3 is a detailed view of a switching damper with a 1... Refrigerator body, 2, 3, 4... Door, 5...
...Freezer room, 6..Freezer-refrigerator, 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...
・Air outlet, 18...Ice making room, 19...Partition 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 hot wall, 28
...Return passage, 29...Cold air suction port, 30...
...Switching damper, 31...Lever, 32...
heating element. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[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 by this cooler is sent to the back of the freezing compartment. After blowing the cold air into the freezer compartment with a blower installed in the middle partition, a part of the cold air is discharged into the switching room through a cold air passage with a damper thermometer installed in the middle partition wall, and the remaining cold air is In order to form a series of cold air passages configured to return cold air to the cooler through a pressure chamber provided in the interior, and to return cold air from the switching chamber to the previous cooler, the cold air is blown out to the cold air outlet to the freezer compartment. In addition to providing a partition duct plate that separates the amount of air and guides the cold air to the pressure chamber within the partition wall,
A passage for guiding cold air to the switching chamber or the cooler is formed in the pressure chamber, and a switching damper is provided in the pressure chamber to selectively switch between the cold air outlet to the switching chamber and the inlet of the return passage to the cooler. A refrigerator-freezer characterized by: 2. A damper section that roughly divides the volume of the box into two is housed inside the box so that it can be operated externally 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 body, a damper part, a lever, etc. is installed so as to face the side, and the switching damper has two passages 28 at the center of the switching damper on the side opposite to the pressure chamber.
. 3 The lever that slides the damper section has its fulcrum located on the partitioning thermal wall section, and the operating section of the lever faces the switching chamber, and a recess that can absorb the movement of the lever in the rotational direction is installed in the damper section. The refrigerator-freezer according to claim 1, characterized in that the refrigerator-freezer is provided in a sliding portion. 4 The lever that slides the damper section has its fulcrum installed on the partitioning thermal wall section, and the operating section of the lever faces the switching chamber, and a recess that can absorb the movement of the lever in the rotational direction is installed in the damper section. 2. The refrigerator-freezer according to claim 1, further comprising a guide portion for guiding cold air provided on the sliding portion and further provided on the opposite side of the damper portion to the sliding portion.