JPH0571850A - Freezing refrigerator - Google Patents

Abstract

PURPOSE:To obtain a freezing refrigerator having excellent volumetric efficiency and low temperature chamber temperature distribution by providing chilled gas discharge ports of a low temperature chamber provided at the front part of a temperature regulator in a lower part of a cold storage chamber at right and left parts of the front surface of a sidewall and suction ports at right and left parts of the back surface in the refrigerator having the cold storage chamber in an upper section and a freezing chamber in a lower section. CONSTITUTION:An automatic temperature regulator 31 is provided in the lower innermost part of a cold storage chamber 6, low temperature chamber chilled gas discharge ports 38 are provided at the right and left parts of the front surface in a low temperature chamber 29 of its front part, and low temperature chamber chilled gas return ports are provided at the right and left parts of the back surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold air forced circulation type refrigerator / freezer having a freezer compartment at the bottom of the main body and a refrigerating compartment at the top.

[0002]

2. Description of the Related Art A conventional refrigerator / freezer of this type is, for example, NR-435DV released by Matsushita Electric Industrial Co., Ltd. in 1984.
There was a freezer refrigerator.

The details are shown in FIGS. In the figure, 1 is a heat insulating box of a refrigerator main body, 2 is a first horizontal partition wall, 3 is a second horizontal partition wall, and 4 is a vertical partition wall. Reference numeral 5 is a freezing compartment, 6 is a refrigerating compartment, 7 is a low temperature compartment, and 8 is a vegetable compartment, which are partitioned and formed by a first horizontal partition wall 2, a second horizontal partition wall 3, and a vertical partition wall 5, respectively.

Reference numeral 9 denotes a cooling chamber provided at the back of the freezing chamber 5, in which a cooler 10 and a blower 11 for forced circulation of cold air are provided.

Reference numeral 12 denotes a freezer compartment cold air discharge cover, and a freezer compartment cold air discharge port 13 is provided in the front portion thereof. Reference numeral 14 is a cooling chamber cover, and a freezing chamber cold air return port 15 is provided in the front portion thereof. Reference numeral 16 is a refrigerating compartment cold air discharge air passage arranged in the heat insulating box 1, 17 is an automatic temperature control device 18 and a refrigerating compartment cold air discharge port 19 provided in the upper portion of the refrigerating compartment 6. Reference numeral 20 is a temperature controller, 21 is a refrigerating room cold air suction port, 21 is a low temperature room and a vegetable room cold air discharge air passage arranged in the vertical partition 4, 22 is a low temperature room cold air discharge port, and 23 is a vegetable room cold air discharge port. 24 is a cold room cold air suction port, 25 is a vegetable room cold air suction port, and 26 is a cold room cold air return air passage provided in the first horizontal partition wall 2.

With respect to the freezer-refrigerator constructed as above, the flow operation of cold air will be described below.

The cool air cooled by the cooler 10 is partly discharged to the freezer compartment 5 from the freezer compartment cool air discharge port 13 of the freezer compartment cold air discharge cover 12 by the cooler forced air circulation blower 11 and partly to the refrigerating compartment cool air. Passing through the air passage 16 and passing through the automatic temperature controller 17 from the refrigerating compartment cold air outlet 19 to the refrigerating compartment interior 6, the rest passes through the low temperature compartment and the vegetable compartment cold air ejecting air passage 21 and the low temperature compartment cold air outlet 22 and the vegetable compartment cold air. It is supplied to the low temperature room 7 and the vegetable room 8 from the discharge port 23, respectively.

The cold air supplied to the freezing compartment 5 is supplied to the refrigerating compartment 6, the low temperature compartment 7 and the vegetable compartment 8 through the freezing compartment cold air return port 15 provided in the front part of the cooling compartment cover 14. The cold air passes through the cold room cold air suction port 20, the low temperature room cold air suction port 24, the vegetable room cold air suction port 25, the cold room cold air return air passage 26, and returns to the cooler 10, respectively.

As described above, the cold air circulates through the compartments in the refrigerating compartment to cool each compartment to a predetermined temperature.

[0010]

However, in the above-mentioned conventional structure, since the low temperature chamber and the vegetable room cold air discharge air passage 21 are arranged in the vertical partition wall 4, the wall thickness of the vertical partition wall 4 is large. Therefore, it is difficult to secure the internal volume and provide a refrigerator with good volume efficiency.

Further, the low temperature room cold air discharge port 22 is located only on the right side surface of the low temperature room 7, and the low temperature room cold air suction port 24 is located only in the lower central part of the low temperature room 7. There is a problem that the circulation of cold air in the low greenhouse 7 tends to be biased to the right, and the temperature distribution in the low temperature chamber 7 becomes poor.

The present invention solves the above-mentioned conventional problems, and provides a refrigerator / freezer having a good volume efficiency and a good temperature distribution in a low temperature room.

[0013]

In order to solve the above-mentioned problems, the refrigerator-freezer of the present invention comprises a heat-insulating box body whose front opening is divided by a partition wall into a freezer compartment at the top and a refrigerating compartment at the bottom. A cooling chamber provided with a cooler, a blower for forced circulation of cold air, and a second cold storage cold air return air passage in the freezer compartment, a low temperature room and a vegetable compartment in the lower part of the refrigerating compartment, and an automatic in the lower part of the refrigerating compartment A temperature controller, a refrigerator compartment automatic temperature controller inside the automatic temperature controller, a low temperature chamber automatic temperature controller, a cold room cool air discharge air passage, a first low temperature room cold air discharge air passage, a first A refrigerating room is provided with a cool air return air passage.

A second cold room cold air discharge air passage communicating with the first cold room cold air discharge air passage on the left and right side walls of the cold room, and a front opening of the cold room cold air discharge air passage of the second cold room cold air discharge air passage. A low temperature room cold air discharge port is provided on the side of the unit.

Further, the low temperature room cold air return ports are provided on the left and right of the rear surface of the low temperature room, and the low temperature room cold air return ports are communicated with the first cold room cold air return air passage in the automatic temperature controller. is there.

[0016]

With the above structure, the low temperature room and the vegetable room are provided in the refrigerating room, and the low temperature room cool air discharge air path and the refrigerating room cold air return air path are formed in the automatic temperature controller.
The vertical partition wall of the conventional example will be eliminated.

Further, since the low temperature room cold air discharge ports are provided at the left and right front parts of the low temperature room, the cold air is uniformly supplied to the low temperature room.

Further, since the low temperature room cold air return ports are provided at the left and right rear portions of the low temperature room, the cold air in the low temperature room circulates more evenly.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The same components as those of the related art are designated by the same reference numerals, and detailed description thereof will be omitted.

Reference numeral 27 is a horizontal partition wall which divides the freezer compartment 5 and the refrigerating compartment 6, and 28 is a second refrigerating compartment cool air return air passage.

A low temperature room 29 and a vegetable room 30 are provided below the refrigerating room 6. Reference numeral 31 is an automatic temperature controller, which is a refrigerating compartment automatic temperature regulating device 32, a low temperature compartment automatic temperature regulating device 33, a refrigerating compartment cold air discharge air passage 34, a first low temperature compartment cold air discharge air passage 35, and a first cold air chamber discharge air passage 35. A refrigerating room cold air return air passage 36 is provided.

Reference numeral 37 is a second low temperature room cold air discharge air passage provided on the left and right side walls of the low temperature chamber 29, and a resistance room cold air discharge port 38 is provided on the front opening side thereof.

Reference numeral 39 denotes cold room cold air return ports provided on the left and right of the rear surface of the cold room 29, which communicate with the first cold room cold air return air passage 36 in the automatic temperature controller 31.

Reference numeral 40 is a discharge duct provided with a cold air discharge port 41 of the cold room, which communicates with the cold air discharge path 34 of the cold room.

A refrigerating compartment cold air suction port 42 communicates with the first refrigerating compartment cold air return air passage 36.

With the above structure, the cold room 2 is provided in the refrigerating room 6.
9 and the vegetable compartment 30 are provided, and the first low-temperature room cool air discharge air passage 35 and the first refrigerating compartment cold air return air passage 36 are formed in the automatic temperature controller 31. The vertical partition wall is eliminated, the internal volume can be increased, and the volume efficiency is improved.

Next, the flow of cold air on the refrigerating compartment 6 side will be described. The cool air cooled by the cooler 10 is partially blown by the blower 11 for forced cold air circulation to the cold room 6 through the cold room cold air discharge air passage 34, the cold room automatic temperature control device 32 and the discharge duct 40. First low temperature room cold air discharge air passage 35, low temperature room automatic temperature control device 33, second low temperature room cold air discharge air passage 37
And is supplied to the low temperature chamber 29 through the low temperature chamber cold air discharge port 38.

The cold air supplied to the refrigerating compartment 6 passes through the refrigerating compartment cold air suction port 42, and the cold air supplied to the low temperature compartment 29 passes through the low temperature compartment cold air return port 39, respectively, and returns to the first refrigerating compartment cold air return. Air path 36 and second cold room cold air return air path 28
Return to the cooler 10 via.

Due to the flow of cold air as described above, the low temperature chamber 2
Since the low temperature room cold air discharge ports 38 are located at the left and right front portions of the cold room 9, the cold air is uniformly supplied to the low temperature room 29, and the low temperature room 2
The temperature distribution within 9 is improved.

Further, since the low temperature room cold air return ports 39 are provided at the left and right rear portions of the low temperature room 29, the cold air in the low temperature room 29 circulates more evenly, and the temperature distribution in the low temperature room 29 is further improved.

[0031]

As described above, in the refrigerator-freezer of the present invention, the front opening is partitioned by the partition wall so that the upper part is the freezer compartment and the lower part is the refrigerating compartment, and the cooler is provided in the freezer compartment. And a cooling chamber provided with a blower for cold air forced circulation and a second refrigerating chamber cold air return air passage, a low temperature chamber and a vegetable chamber at the lower part of the refrigerating chamber,
An automatic temperature controller at the lower part of the refrigerator compartment, an automatic temperature controller for the refrigerator compartment, an automatic temperature controller for the low temperature compartment, a cooling air outlet for the cooling compartment, and a first cold chamber outlet for the cold air inside the automatic refrigerator. By providing the air passage and the first refrigerating compartment cold air returning air passage, a low temperature room and a vegetable compartment are provided in the refrigerating compartment, and a partition wall that divides the conventional refrigerating compartment from the low temperature compartment and the vegetable compartment is provided. Since the inner volume is large, the volumetric efficiency can be improved.

A second cold room cold air discharge air passage communicating with the first cold room cold air discharge air passage on the left and right side walls of the cold room and a front opening of the cold room cold air discharge air passage of the second cold room cold air discharge air passage. By providing the low temperature room cold air discharge port on the side of the section, the cold air is uniformly supplied to the low temperature room, and the temperature distribution in the low temperature room is improved.

Further, the low temperature room cold air return ports are provided on the left and right of the rear surface of the low temperature room, and the low temperature room cold air return ports are communicated with the first cold room cold air return air passage in the automatic temperature controller. The cold air is circulated more evenly, and the temperature distribution in the low temperature chamber is further improved.

[Brief description of drawings]

FIG. 1 is a front view of a refrigerator-freezer according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB showing the low temperature chamber portion of FIG.

FIG. 4 is a front view of a conventional refrigerator-freezer.

5 is a central cross-sectional view of FIG.

[Explanation of symbols]

 1 Insulation Box 5 Freezing Room 6 Refrigerating Room 9 Cooling Room 10 Cooler 11 Blower for Forced Circulation of Cold Air 28 Second Cold Room Cooling Air Return Airway 29 Low Greenhouse 30 Vegetable Room 31 Automatic Temperature Controller 32 Cold Room Automatic Temperature Control Device 33 Low greenhouse automatic temperature control device 34 Cold room cold air discharge air path 35 First low temperature room cold air discharge air path 36 First cold room cold air return air path 37 Second low temperature room cold air discharge air path 38 Low greenhouse cold air discharge port 39 Low greenhouse cold air return port

Claims (3)

[Claims] 1. The front opening is a partition wall and the upper part is a freezer compartment,
A heat-insulating box whose lower part is divided into a refrigerating chamber, a cooling chamber provided with a cooler, a cool air forced circulation fan and a second refrigerating chamber cool air returning air passage in the freezing chamber, and a lower part of the refrigerating chamber. A low greenhouse and a vegetable compartment, an automatic temperature controller at the bottom of the refrigerator compartment, an automatic temperature controller for the refrigerator compartment inside the controller, an automatic temperature controller for the low temperature compartment, and a cooling air outlet for the refrigerator compartment, A freezer-refrigerator provided with a first cold room cold air discharge air path and a first cold room cold air return air path. 2. A second cold room cold air discharge air passage communicating with the first cold room cold air discharge air passage on the left and right side walls of the low greenhouse, and a cold room front opening of the second cold room cold air discharge air passage. The freezer-refrigerator according to claim 1, wherein a cold air discharge port is provided on the side. 3. The low temperature room cold air return port is provided on the left and right of the back surface of the low greenhouse, and the low temperature room cold air return port communicates with the first cold room cold air return air passage in the automatic temperature controller. Freezer refrigerator.