JPS6011310B2 - 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 alleviate this consumer concern, and consists of a dedicated freezer compartment, a dedicated refrigerated compartment, and a freezing and refrigerating compartment, and the indoor temperature of the frozen/refrigerated compartment is variable via a conversion mechanism. By switching the freezing/refrigerating compartment into a freezing compartment or a refrigerating compartment, 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.
The refrigerator itself has a freezing and refrigerating compartment in addition to the freezing and refrigerating compartments.

Reference numeral 2 denotes a door that closes the front closing part of the freezer compartment, 3 a door that closes the front entrance part of the refrigerator compartment, and 4 a door that closes the front closing part of the freezing/refrigerating compartment serving as a switching chamber.

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

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

Reference numeral 10 denotes a partition plate that partitions the freezer compartment 5 and the freezer/refrigerator compartment 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 cooled 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 in the cold air discharge hole 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 partition duct plate 19 is divided into a partition duct plate 19a and an auxiliary duct plate 19b having a suction port 20 (described later). Further, 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. 20 is a cold air suction port of the freezer compartment 5 provided in the partition wall 10.

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. Reference numeral 23 denotes a Dasopar 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 22 and a cold air passage 26 formed between the duct plate 13 and the partition duct plate 19 is open.

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 its end closed to the pressure chamber 25, and its pond end opened to the cold air suction port 29 of the freezing/refrigerating room. 30
is a switching damper provided within the pressure chamber 25. This switching damper 30 directs the cold air entering the pressure chamber 25 through the cold air passage 26 and the cold air escape passage 21 to the cold air return passage 21.
The user selects whether to send the cold air to the 8 side or the cold air blowing hole 24 side of the freezer/refrigerator compartment, and this selection is made by the user using, for example, the lever 31 or the like. 32 is a heating element attached to the top surface of the partition duct plate, and this heating element 32 prevents fog from forming on the surface of the partition duct plate 19 due to a temperature difference (temperature difference between the back and front of the partition duct plate), and also serves to switch the partition duct plate 19. It is used to prevent overcooling of rooms.

As shown in FIG. 3, 33 indicates a gutter portion which is recessed in the depth direction at both ends of the partition duct plate.

The dew adhering to the surface of the partition duct plate through this gutter 33 is guided to a reservoir 36 provided at the bottom of an inner box 64 forming a freezing/refrigerating room. Reference numeral 34 denotes a recess provided at the lower end of the duct slope main body 19a of the partition duct plate further forward so as to be recessed toward the cooler 11 side.

The entrance 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 freezing/refrigerating compartment, which is the switching compartment of the refrigerator, (first, an example in which the freezing/refrigerating compartment is used as a refrigerator compartment), at this time, the switching damper 30 is connected to the cold air passage 28 as shown by the solid line in FIG. It communicates with the pressure chamber 25 on the side, so that the passage of the cold air blowing hole 24 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 is sent to the blower 15.
Most of the cold air is blown out from the cold air outlet 17 into the freezer compartment 5, while the remaining cold air is blown out from the cold air passage 26 into the pressure chamber 2.
5 and then returned to the cooler 11 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 thermometer 23 is provided and a pressure chamber. It reaches the cold air passage 21 (the distribution of the cold air at this time is performed by the damper thermometer 23). Therefore, the cold air that has passed through the cold air passage 21 is transferred to the pressure chamber 25 and the cold air passage 2.
8 and returns to the cooler 11. On the other hand, the cold air passing through the cold air passage 22 warms the freezer/refrigerator compartment 6 to a temperature suitable for the refrigerator compartment temperature.
After cooling, a cold air circulation path is configured in which the cold air is returned to the middle of the cooler through the cold air suction port 29, and the temperature of the freezer compartment is, for example, -18 qo,
The refrigerator compartment 6 obtains a temperature of 12°C. In addition, when the inside of the freezing/refrigerating room 6 is moved so as to close the switching damper 30 and the cold air passage 28 side in order to use it as a freezing room, the cold air circulates directly to the pressure chamber 25 through the cold air passage 26 in the previous cold air circulation path. The cold air 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. At this time, the damper thermo in the cold air passage 22 is completely sealed. As explained above, the present invention provides a freezing compartment in the upper part and a switching compartment 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 using a blower installed in The cold air is returned to the cooler through a pressure chamber provided in the cutting wall, and is returned to the cooler through a pressure chamber provided in the switching chamber, and the cold air in the switching chamber is returned to the cooler. In order to form a series of cold air passages, the amount of cold air blown out is divided into the cold air blowing section to the freezer compartment, and the cold air is guided to the pressure chamber within the partition wall. A damper is provided to form a passage for guiding cold air to the cooler, and to selectively switch the cold air outlet to the switching chamber and the inlet of the return passage to the cooler in the pressure chamber, and to connect the cold air from the pressure chamber to the cooler. In addition to forming a return passage between the partition plate provided at the front of the cooler and the partitioning thermal wall, a return port for the cold air discharged into the switching chamber is located below the partitioning thermal wall and at the lower end of the cooler. The partition duct plate is divided into a duct slope main body and an auxiliary duct plate having a suction port, and the lower end of the cooler is located behind the auxiliary duct plate. ,
Of course, the volume ratio between the freezer compartment and the refrigerator compartment can be easily increased or decreased as needed, and if the refrigerator of the present invention uses the switching compartment 6 as the refrigerator compartment, part of the cold air in the freezer compartment can be 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 a pressure chamber provided within the partition wall, no ineffective space is created in the upper warehouse, which can simplify the style structure.

Furthermore, in the present invention, the duct plate is divided into two parts, so if there are complaints about the cooler, the auxiliary duct plate 19
Of course, you only need to remove this auxiliary duct plate 1.
Since frost clogging, etc. at the lower end of the cooler can be monitored each time the door is opened or closed through the suction port 20 provided in the section 9b, it has various effects such as being able to take prompt action.

[Brief explanation of drawings]

Fig. 1 is a front view of a freezer/refrigerator room 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. 4 is a third It is a detailed cross-sectional view of the slope part of the partition duct similar to the figure. 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, 19
a...Duct slope main body, 19b...Auxiliary duct plate, 20...Cold air intake port, 21...
Cold air passage, 22...Cold air passage, 23...
・Damper thermo, 24...Cold air outlet, 25
......Pressure chamber, 26...Cold air passage, 27
......Partition thermal wall, 28...Return passage, 29...
...・Air suction port, 301...Switching damper, 31
... Lever, 32 ... Heating element, 33.
・・・・・・Gutter part of partition duct plate, 34... Recessed part, 35...
...Lead wire, 36...Reservoir. A 1 drawing ticket 2 drawings matching 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 through a partition wall, a cooler is installed at the back of the switching compartment, and the cold air cooled by the cooler is sent to the back of the freezing compartment. After blowing into the freezer compartment with the installed blower, part of the cold air is discharged into the switching room through a cold air passage with a damper thermo installed in the partition wall, and the remaining cold air is pumped 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 passages 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 guide cool air to the pressure chamber within the partition wall, and a passage is formed in the pressure chamber to guide the cool air to the switching chamber or the cooler, and within the pressure chamber, a passageway is formed to guide the cold air to the switching chamber. A damper is provided to selectively switch between the cold air outlet hole and the inlet of the return passage to the cooler, and the passage returning from the pressure chamber to the cooler is separated by a partition plate and a partitioning hot wall provided at the front of the cooler. In addition, a return port for the cold air discharged into the switching chamber is provided below the partitioning thermal wall and at a lower end of the cooler, and the partition duct plate has a duct plate main body and a suction port. A refrigerator-freezer characterized in that the refrigerator is divided into an auxiliary duct plate and a lower end of the cooler is located behind the auxiliary duct plate. 2. The refrigerator-freezer according to claim 1, wherein the switching damper installed in the pressure chamber can be externally operated by a lever installed in the switching chamber or the like. 3. When the switching room is used as a freezing room, the outlet for the cold air blown from the pressure chamber into the switching room and the outlet for the cold air from which the cold air that has cooled the freezing room is blown out when the switching room is used as the refrigerator room are located in the same place. A refrigerator-freezer according to claim 1, characterized in that: