JPH07270036A - Refrigerator - Google Patents

Abstract

PURPOSE:To raise an efficiency of a refrigerator by raising a cooling characteristic of a plate type condenser. CONSTITUTION:A duct 17 guiding and introducing an air executing an inflow from front air suction openings 27 of a refrigerator body 11 to an air suction side of a machine room where a compressor and a blower 13 are set in an inside, is set, and an inside of this duct 17 is partitioned to an upper side and a lower side by a plate type condenser 19, and a plurality of air holes 22 are formed through a plate 20 of the place type condenser 19. Besides, the suction holes 27 are positioned toward a front direction of the lower space 24 of duct 17, and further, a rear side of the upper space 23 of the duct 17 is made to communicate with an air inflow opening 15 of a machine room.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a household refrigerator equipped with a plate condenser.

[0002]

2. Description of the Related Art In recent household refrigerators, a machine room in which a compressor and a blower are installed is arranged in the lower rear part of the refrigerator body, and a condenser is provided in the intake passage of the blower. It was FIG. 4 shows a typical example thereof. A machine room 4 having air outlets 2 and 3 formed on front and rear walls is partitioned and provided at a lower rear portion of the refrigerator main body 1, and a compressor 5 and a blower 6 are provided. It is installed internally. An air inlet 7 is provided in front of the machine room 4,
The duct 8 is continuously provided.

A condenser 9 is housed in the duct 8 and cooling air is introduced from an intake port 10 in front of the condenser 9 (see Japanese Patent Laid-Open No. 4-260774).

By driving the blower 6, outside air is introduced from the intake port 10, and this air flows through the duct 8 and the machine chamber 4 and is discharged from the air outlets 2 and 3. . By the flow of this external air,
The compressor 5 and the condenser 9 are cooled.

[0005]

According to the conventional cooling structure for the condenser in the refrigerator, the cooling efficiency is poor because the external air is simply introduced and allowed to flow. The air discharged from the air outlet 2 in front of 4 may flow in a short circuit, which tends to further deteriorate the cooling efficiency.

The present invention solves the above-mentioned conventional problems and improves the efficiency of the refrigerator by improving the heat radiation of the condenser and the like.

[0007]

In order to achieve the above object, according to the present invention, a machine room is formed in the lower rear part of the refrigerator main body, in which a compressor and a blower are installed, and in front of the machine room. An air inlet and an air outlet formed in the upper rear portion, and a duct that guides the air flowing in from the front intake of the refrigerator body to the machine room via the air inlet,
A plate-type condenser is installed horizontally in the duct so as to partition the duct into upper and lower parts. The plate of the plate-type condenser is provided with a plurality of ventilation holes and is partitioned by the plate-type condenser. Further, the intake port is located in front of the lower space of the duct, and the rear of the upper space of the duct is communicated with the air inlet of the machine room.

Further, at least a part of the plurality of ventilation holes provided in the plate type condenser is formed by cutting and raising, and the cut and raised pieces are projected into the space in the duct.

Further, among the plurality of ventilation holes provided in the plate type condenser, the hole on the innermost side of the duct is in the shape of a horizontal hole orthogonal to the air flow direction, and the other holes are vertical holes parallel to the air flow direction. It is set to each shape.

[0010]

According to the present invention, since the plate of the plate type condenser has a plurality of vent holes, it flows into the front of the lower space of the duct partitioned by the plate type condenser through the intake port. The air also flows into the upper space through the vent holes, so that the air surrounds the condenser.

Further, the flow is complicated, and the chances of contact between the plate condenser and air are increased.

If at least a part of the plurality of ventilation holes is formed by cutting and raising, and the cut and raised pieces are projected into the space in the duct, the contact characteristics between the plate type condenser and the air are further improved. It

Further, among the plurality of vent holes provided in the plate type condenser, the hole on the innermost side of the duct is a lateral hole shape orthogonal to the flow direction of air, so that the duct is partitioned by the plate type condenser. It is possible to suppress the stagnation of air in the inner part of the lower space of the.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.

In the figure, a machine room 14 in which a compressor 12 and a blower 13 are installed is defined in the lower rear part of a refrigerator main body 11.

An air inlet 15 is provided in front of the machine room 14.
However, the air outlets 16 whose outflow directions are set obliquely upward are provided at the upper rear portions. A cooling chamber 18 is formed by covering a duct 17 at the bottom of the refrigerator body 11.

A plate-type condenser 19 is horizontally installed in the duct 17 so as to partition the inside of the cooling chamber 18 into upper and lower parts.
The plate-type condenser 19 is configured by fixing a pipe 21 to the plate 20 by means such as welding, and the plate 20 has a plurality of ventilation holes 22. Cooling chamber 18
The upper space 23 and the lower space 24 are communicated with each other.

Of the plurality of ventilation holes 22, the innermost hole row is set in a horizontal hole shape orthogonal to the air flow direction, and the other hole row is set in a vertical hole shape parallel to the air flow direction.
Further, the vertical ventilation hole 22 is formed by a cut-and-raised process, and the cut-and-raised piece 22a is projected in the lower space 24 so as to be parallel to the air flow.

An exhaust port 25 corresponding to the air inflow port 15 of the machine room 14 is provided on one side of the back of the plate 20.
Is provided. Reference numerals 26 and 27 denote intake ports formed on the front surface of the duct 17 and on both sides of the front portion.

In the above structure, when the blower 13 is operated, external air is sucked through the intake ports 26 and 27 formed on the front front surface and both sides of the front side of the duct 17, and then this air is transferred to the upper portion of the cooling chamber 18. It flows through the space 23 and the lower space 24, enters the machine room 14 from the air inlet 15, and is finally discharged from the air outlet 16.

The plate condenser 19 and the compressor 12 are cooled during the flow of the external air.

The form of air flow in the cooling chamber 18 will be described in more detail. The air sucked from the intake port 27 into the lower space 24 partially reaches the upper space 23 through the horizontal vent hole 22 in the inner side, and exits from the exhaust port 25 into the machine room 14. This air is extremely effective in expelling the air that stagnates inside the cooling chamber 18.

The other part of the air is a ventilation hole 22 having a vertical hole shape.
To join the air flowing through the upper space 23. In this way, the outside air is allowed to pass through the ventilation holes 22 and the upper and lower spaces 23,
The plates 24 are connected to each other and flow so as to wrap around the plate condenser 19, so that the heat radiation from the plate 20 is surely performed.

Further, since the ventilation hole 22 having a vertical hole shape is formed by cutting and raising, and the cutting and raising piece 22a is projected in the lower space 24 in parallel with the air flow, the contact area with air is increased. Not only does this prevent air flow resistance, but it is also possible to prevent a reduction in the external air suction amount.

Since the air outlet 16 formed in the machine room 14 is located above the machine room 14 and the air outflow direction is set obliquely upward, the exhaust air is discharged from the refrigerator main body 11.
Toward the upper rear of the, so that this exhaust will
There is no short-circuit flow in 6 and 27, and even from this, the plate condenser 19 and the like can be reliably cooled.

[0026]

As described above, according to the present invention, the plate type condenser is provided with a plurality of ventilation holes, and the intake port is located in front of the lower space of the duct partitioned by the plate type condenser. Since the rear of the upper space of the duct is connected to the air inlet of the machine room, the external air flowing into the lower space also flows into the upper space through the ventilation holes so that the condenser is wrapped up. Take the form. As a result, the cooling effect of the plate type condenser is enhanced, and the efficiency of the refrigerator is improved.

Further, if at least a part of the plurality of ventilation holes is formed by cutting and raising, and the cut-and-raised pieces are projected into the space in the duct, the contact characteristics between the plate condenser and air are further improved. In addition, since the hole on the innermost side of the duct has a lateral hole shape orthogonal to the air flow direction, it is possible to suppress the stagnation of air in the deep part of the cooling space, and as a result, the cooling characteristics and efficiency are improved. Further improvement can be expected.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of essential parts of a refrigerator according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the main part of the refrigerator.

FIG. 3 is an enlarged sectional view of the main part of the refrigerator.

FIG. 4 is a sectional view of a conventional refrigerator.

[Explanation of symbols]

 11 Refrigerator Main Body 12 Compressor 13 Blower 14 Machine Room 15 Air Inlet 16 Air Outlet 17 Duct 19 Plate Condenser 20 Plate 22 Vent 23 Upper Space 24 Lower Space 27 Air Intake

Claims (3)

[Claims] 1. A machine room, which is partitioned and formed in the lower rear part of a refrigerator main body, in which a compressor and a blower are installed, an air inlet formed in the front of the machine room and an air outlet formed in the upper rear part, and a refrigerator. A duct that guides air that has flowed in from the front intake port of the main body to the machine room through the air inlet port, and a plate-type condenser that is laterally installed in the duct so as to partition the inside of the duct into the upper and lower sides, The plate of the plate condenser is provided with a plurality of ventilation holes, the intake port is located in front of the lower space of the duct partitioned by the plate condenser, and the rear of the upper space of the duct is located in the machine room. Refrigerator communicated with the air inlet of. 2. The refrigerator according to claim 1, wherein at least a part of the plurality of vent holes provided in the plate condenser is formed by cutting and raising, and the cut and raised pieces are projected into the space in the duct. 3. A plurality of vent holes provided in the plate condenser, the hole at the innermost side of the duct is a lateral hole orthogonal to the air flow direction, and the other holes are vertical holes parallel to the air flow direction. The refrigerator according to claim 1 or 2, wherein each refrigerator is set in a shape.