JPH03291484A - Freezer/refrigerator - Google Patents

Abstract

PURPOSE:To prevent uneven temperature of a freezer chamber from occurring by providing an exhaust fan in a partition wall as opposed to a cooling unit to supply a stable cool air to a cold storage chamber while preventing diffusion of the return cool air into a freezing chamber. CONSTITUTION:A cool air heat exchanged with a cooler 6 is blown off at a discharge port 9 with a freezing fan 7 and circulated forcibly through a freezing chamber 3 to cool the freezing chamber 3. The cool air from the freezing chamber 3 passes through a suction duct 14 at a cool air introduction port 12 of a partition wall 2 and supplied to the cold storage chamber 4 at a discharge port 13. The return cool air of the cold storage chamber 4 flows out at an inlet opening via a return duct and is mixed with a return cool air of the freezing chamber 7 near a suction port 10 to be sucked from the suction port 10 without being diffused into the freezing chamber 3. Again, the air is heat exchanged with the cooler 6 to repeat a cool air circulating operation.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a refrigerator-freezer, which has a freezer compartment and a refrigerator compartment partitioned into left and right sides by a partition wall, a mechanical compartment on the side of the freezer compartment, and a cooling unit disposed in the freezer compartment. It is related to.

BACKGROUND OF THE INVENTION Conventional refrigerators of this type include, for example, the Japanese Patent Application Laid-Open No. 63
There is one shown in Japanese Patent No.-129283. 5th below
An example of a conventional refrigerator-freezer will be described with reference to the drawings.

In the figure, a partition wall 18 partitions the left and right compartments, one of which is a freezing compartment 19 and the other is a refrigerator compartment 20. Above and below the rear end of the partition wall 18, there is an upper passage connecting the two compartments 19 and 20. A passage 21 and a lower communication passage 22 are formed. A cooling unit 23 is installed on the side of the freezer compartment 19 facing the partition wall 18, and this cooling unit 23 includes a cooler 24.
and a cold air circulation fan 26. A resin care 28 having a louvered cold air outlet 26 facing the upper communication passage 21 at the upper part and a louvered cold air suction opening 27 facing the lower communication passage 22 at the lower part, and a freezing chamber 19 A cooler 24 is provided through a through passage 31 in a side wall 30 of a machine room 29 and a freezer compartment 19 that are partitioned adjacent to each other.

In such a configuration, the cold air outlet 26 of the cooling unit 23
A cold air supply duct 33 is disposed between the upper communication passage 21 formed in the partition wall 18 and the cold air suction port 27 and the upper communication passage 21 formed in the partition wall 18.
A return duct 34 is disposed between the lower communication passages 22 formed in the lower communication passages 22 .

The operation of the refrigerator-freezer configured as above will be explained below. The cold air that has undergone heat exchange in the cooler 24 is blown from the cold air outlet 26 by the circulation fan 26, and is forcedly circulated to the freezing compartment 19 to cool the freezing compartment 19, while a part of the cold air is passed through the cold air supply duct 33, It is supplied to the refrigerator compartment 20 from the upper communication path 21. The return cold air from the refrigerator compartment 2Q flows from the lower communication passage 22 through the return duct 34, flows out from the outlet opening, and enters the cold air suction port 2.
The cold air is mixed with the return cold air of the freezing compartment 19 near the freezing compartment 7, is sucked in from the cold air suction port 27 without being diffused into the freezing compartment 19, and is again heat-exchanged in the cooler 24, repeating the cold air circulation operation.

Problems to be Solved by the Invention However, in the above-mentioned conventional refrigerator-freezer, the cold air discharged from the cooler 24 passes through the cold air supply duct 33, so the cold air discharged from the partition wall 18 to the refrigerator compartment 2o is weakened. 20 had the disadvantage that temperature unevenness occurred.

Also, inside the resin case 28 of the freezer compartment 19 is a cooler 24° cold air circulation fan 25. Cold air supply duct 33. Return duct 34
Because of this provision, the internal volume of the freezer compartment 19 is reduced.

The present invention solves the above-mentioned conventional problems, and provides a refrigerator-freezer that is easy to use by stabilizing the supply of cold air to the refrigerator compartment and making maximum use of the freezer compartment.

Means for Solving the Problems In order to achieve this object, the refrigerator-freezer of the present invention is provided with a cooler, a freezing fan, and a cooling cover in a recess provided in the upper part of the side of the freezer compartment, a discharge port in the upper part, and a cooling cover in the lower part. The cooling unit room has a cooling unit chamber with a suction port formed therein, and the cold air inlet is opened at the lower part of the side of the freezer compartment in the partition wall, and the cold air inlet is communicated with the discharge port opened at the upper part of the partition wall on the side of the refrigerator compartment. It has a duct, an exhaust fan disposed within the suction duct to introduce cold air from the freezer compartment and discharge it into the refrigerator compartment, and a return duct formed on the back surface of the resin case and communicating the refrigerator compartment and the cooling unit compartment.

Operation According to the present invention, with the above-described configuration, cold air is stably supplied from the partition wall to the refrigerator compartment, and since the return duct portion of the freezer compartment has a concave portion in the resin case, the freezer compartment is easy to use.

EXAMPLE Hereinafter, a refrigerator-freezer according to an example of the present invention will be described with reference to the drawings.

In Fig. 1, the inside of a main body 1 of an under-counter type refrigerator-freezer with a heat-insulating structure is partitioned into two left and right compartments by a partition wall 2 with a heat-insulating structure inserted through the front opening, one of which is a freezing compartment 3 and the other a refrigerator compartment. Set it to 4. A cooling unit 5 is installed in the upper recess 3a of the side surface of the freezer compartment 3 facing the partition wall 2, and the cooling unit 5 includes a cooler 6. Refrigeration fan 7,
A cooling cover 8 is housed therein, and a cold air discharge port 9 is formed in the upper part.

This is a cooling room with a cold air suction port 1o at the bottom, and a condenser is installed in the machine room 11 which is partitioned adjacent to the freezing room 3.

It constitutes a refrigeration unit (not shown) made up of a compressor.

In such a configuration, the partition wall 2 facing the cooling unit 5
A cold air inlet 12 leading to the refrigerator compartment 4 and a suction duct 14 leading the cold air from the cold air inlet 12 to an upper discharge port 13 on the refrigerator compartment 4 side are provided at the lower side of the partition wall 2. On the side of the refrigerator compartment 4, there is an exhaust fan 1 for discharging cold air from the suction duct 14.
6 and a discharge port 13 are provided, and a return duct 16 leading from the refrigerator compartment 4 to the cooling unit 6 is provided in the recess 1 on the back surface of the resin cake 17.
It is formed by molding 7a.

The operation of the refrigerator-freezer configured as above will be explained below.

The cold air heat-exchanged by the cooler 6 is blown out from the discharge port 9 by the refrigeration fan 7 and forcedly circulated to the freezing compartment 3 to cool the freezing compartment 3. Cold air from the freezer compartment 3 passes through the cold air inlet 12 of the partition wall 2, the suction duct 14, and is supplied to the refrigerator compartment 4 through the exhaust port 13 by the exhaust fan 15. The return cold air from the refrigerator compartment 4 flows out from the outlet opening through the return duct 16 in the rear recess 17a of the resin case 17, mixes with the return cold air from the freezer compartment 3 near the suction port 1o, and is diffused into the freezer compartment 3. The cold air is sucked in from the suction port 1o without any heat exchange, and heat is exchanged again in the cooler 6, and the cold air circulation operation is repeated.

With this configuration, stable cold air can be supplied to the cold storage compartment 4, and since the return duct portion 16 is provided within the resin case 17, the insulation effect is also great.

Effects of the Invention As described above, the present invention provides stable cold air to the refrigerator compartment by providing an exhaust fan in the partition wall facing the cooling unit, and prevents return cold air from dispersing into the freezer compartment. Temperature unevenness can be prevented, and since the cooling unit and 7) return duct do not protrude inside the freezing chamber, it is easy to use and has great practical effects.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a refrigerator-freezer showing an embodiment of the present invention.
Fig. 2 is a cutaway view of Fig. 1, Fig. 3 is a perspective view of the main part of Fig. 2, Fig. 4 is a sectional view taken along line AA of Fig. 1, and Fig. 6 is a cross section of a conventional refrigerator-freezer. It is a diagram. 2...Partition wall, 3...Freezing room, 3a.
...Top recess, 4...Refrigerating compartment, 5...
...Cooling unit, 6...Cooler, 7...
... Refrigeration fan, 8... Cooling cover 9...
...Discharge port, 10...Suction port, 12...
...Cold air inlet, 13...Exhaust port, 14...
...Suction duct, 16...Exhaust fan, 1
6...Return duct, 17...Resin case.

Claims (1)

[Claims] A partition wall that divides the inside of the refrigerator into two left and right compartments, a freezer compartment and a refrigerator compartment, and a cooler, a freezing fan, and a cooling cover are installed in a recess provided in the upper side of the freezer compartment, with a discharge port in the upper part and a cooling cover in the lower part. The cooling unit has a cooling unit chamber having a suction port formed therein, a cold air inlet opening at the lower part of the side surface of the freezer compartment of the partition wall, a discharge port opening at the upper part of the partition wall on the side of the refrigerator compartment, and the cold air inlet. A resin case includes a suction duct that communicates with the air, an exhaust fan disposed within the suction duct that introduces cold air from the freezer compartment and discharges it into the refrigerator compartment, and a return duct that communicates between the refrigerator compartment and the cooling unit room. A refrigerator-freezer characterized by a formation on the back.