JPH109616A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a condensing unit small in a refrigerator having a cleaning lunit and the condensing unit by providing a four-way valve, an accumulator and a part of a pipeline connected thereto in the heat exchanger of the condensing unit. SOLUTION: During the cooling operation of a refrigerator, a refrigerant discharged from the compressor 1 of a condensing unit 100 enters a condenser 3 via a four-way valve 2, radiates heat to outside air therein, and is condensed and liquefied. At this time, the casing of the condensing unit 100 is divided into a machine chamber 22 and a heat exchanging chamber 23 by a partition plate 21. In the heat exchanging chamber 23, the condenser 3, a fan 4, the four- way valve 2, an accumulator 10 and a part of a pipeline connected thereto are provided. Thus, outside air which is raised in temperature heats the four-way valve 2, the accumulator 10 and the pipeline connected thereto so that freezing-up of dew sticking to the surfaces thereof is prevented, the volume of the machine chamber is decreased and the casing of the condensing unit 100 can be made small.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner,
The present invention relates to a refrigerating device such as a refrigerator.

[0002]

2. Description of the Related Art FIG.
Is shown in During the cooling operation of the refrigeration system, the refrigerant discharged from the compressor 1 of the condensing unit 100
As shown by the solid arrow, it enters the condenser 3 via the four-way valve 2, where it is condensed and liquefied by radiating heat to the outside air blown by the condenser fan 4.

[0003] The liquid refrigerant passes through a receiver 5 and is then subjected to a throttle mechanism 8.
After adiabatic expansion by being squeezed here,
After entering the evaporator 9 of the cooling unit 200, the inside air blown by the evaporator fan 11 is cooled and vaporized and evaporated, and then the four-way valve 2, the accumulator 10
And returns to the compressor 1.

[0004] During the defrost operation, the refrigerant enters the evaporator 9 via the compressor 1 and the four-way valve 2 as shown by the dashed arrow,
Here, the temperature is lowered by melting the frost attached to the surface. This refrigerant is supplied to the throttle mechanism 8, the condenser 3, the four-way valve 2,
It returns to the compressor 1 via the accumulator 10.

[0005] As shown in FIG. 5, the condensing unit 100 divides a casing 20 into a machine room 22 and a heat exchange room 23 by a partition plate 21. , An accumulator 10, a four-way valve 2, and the like are disposed, an L-shaped condenser 3 is disposed inside the heat exchange chamber 23 so as to face the air suction port 24, and the fan 4 for the condenser is mounted on a fan bracket 29. It is attached so as to face the air outlet 25.

[0006]

In the conventional refrigeration system, not only the compressor 1 but also the receiver 5, the accumulator 10, the four-way valve 2 and the like are arranged in the machine room 22 of the condensing unit 100. Therefore, the machine room 22 becomes large,
Along with this, there is a problem that the size of the housing 20 is increased, and the cost and the installation space are increased.

[0007] Further, since the low-temperature refrigerant gas is always sucked into the compressor 1 from the four-way valve 2 through the suction pipe 26 and the accumulator 10 interposed therebetween, ice frozen on the surface of these gases grows, and There is a problem that the refrigerant pipe in the chamber 22 is deformed or broken.

[0008]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a first aspect of the present invention is to provide a cooling unit and a condensing unit, Device that partitions the interior of the housing of the cooling unit into a machine room and a heat exchange room by a partition plate, and installs at least a compressor in the machine room and at least a condenser and a fan in the heat exchange room. In the refrigerating apparatus, a four-way valve, an accumulator, and a part of piping connected to the four-way valve, which constitute a refrigerant circuit, are disposed in a heat exchange chamber of the condensing unit.

[0009] The accumulator can be installed on a base plate of the heat exchange chamber, and the fan can be mounted on a fan bracket installed on the accumulator.

According to a second aspect of the present invention, a cooling unit and a condensing unit are provided, and the inside of the housing of the condensing unit is partitioned into a machine room and a heat exchange room by a partition plate. In a refrigeration system in which a compressor is installed and at least a condenser and a fan are arranged in the heat exchange chamber, a receiver constituting a refrigerant circuit is installed on a base plate in the heat exchange chamber of the condensing unit. A refrigeration apparatus characterized in that the fan is attached to a fan bracket installed on a receiver.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention is shown in FIG. In the heat exchange chamber 23 of the housing 20 of the condensing unit 100, in addition to the condenser 3 and the fan 4, a four-way valve 2,
The accumulator 10 and a part of a pipe connected to the accumulator 10 are provided. The other configuration is the same as that of the conventional one shown in FIGS. 4 and 5, and the corresponding members are denoted by the same reference numerals and description thereof is omitted.

During the cooling operation of the refrigerating apparatus, the outside air heated by flowing through the condenser 3 is supplied to the four-way valve 2 and the accumulator.
After flowing around the part of the pipes 10 and the pipes connected to them and warming them, they are urged by the fan 4 and blown out from the air outlet 25 to the outside.

Thus, the four-way valve 2 through which the low-temperature refrigerant gas flows, the accumulator 10, and dew adhering to the surfaces of the pipes connected thereto can be prevented from freezing and the volume of the machine room 22 can be reduced. In addition, the size of the housing 20 of the condensing unit 100 can be reduced.

A second embodiment of the present invention is shown in FIG. In the second embodiment, the accumulator 10 is installed on a base plate 28 of the heat exchange chamber 23, and the fan 4 is attached to a fan bracket 29 installed on the accumulator 10. And Juan bracket 29
Is fixed to the top plate of the housing 20. In this way, the accumulator 10 can be firmly supported and the fan 4 can be easily arranged at a predetermined position.

As shown in FIG. 3, the receiver 5 is installed on the base plate 28 in the heat exchange chamber 23 in place of the accumulator 10, and the fan bracket 29 installed on the receiver 5 is installed.
The fan 4 can also be attached to.

[0016]

According to the first aspect of the present invention,
Since the four-way valve, accumulator, and part of the piping connected to these components are arranged in the heat exchange chamber of the condensing unit, the volume of the machine room can be reduced to reduce the size of the condensing unit and reduce the temperature. It is possible to prevent freezing on the surfaces of the four-way valve and the accumulator through which the gas refrigerant flows and the piping connected to these.

If the accumulator is installed on the base plate of the heat exchange chamber and the fan is attached to the fan bracket installed on the accumulator, the accumulator can be firmly supported and the fan can be easily installed at a predetermined position.

According to the second aspect of the present invention, a receiver constituting a refrigerant circuit is installed on a base plate in a heat exchange chamber of a condensing unit, and a fan is mounted on a fan bracket installed on the receiver. Because
The volume of the machine room can be reduced, and as a result, the condensing unit can be downsized.

[Brief description of the drawings]

1A and 1B show a first embodiment of the present invention, wherein FIG. 1A is a schematic sectional view taken along line AA of FIG. 1B, and FIG. 1B is a schematic sectional view taken along line BB of FIG. It is an illustrative sectional view.

FIG. 2 is a perspective view of a main part showing a second embodiment of the present invention.

FIG. 3 is a perspective view of a main part showing a third embodiment of the present invention.

FIG. 4 is a refrigerant circuit diagram of a conventional refrigeration apparatus.

FIG. 5 shows a condensing unit of a conventional refrigeration system, where (A) is a schematic cross-sectional view taken along line AA of (B) and (C),
(B) is a schematic sectional view taken along the line BB of (A), and (C) is (A)
It is a schematic sectional drawing which follows CC line of FIG.

[Explanation of symbols]

 100 Condensing unit 20 Housing 21 Partition plate 22 Machine room 23 Heat exchange room 1 Compressor 2 Four-way valve 3 Condenser 4 Fan 10 Accumulator 26 Suction pipe 29 Fan bracket

Claims (3)

[Claims] 1. A cooling unit and a condensing unit, wherein the inside of a housing of the condensing unit is divided into a machine room and a heat exchange room by a partition plate, and at least a compressor is installed in the machine room. In a refrigeration apparatus having at least a condenser and a fan disposed in a heat exchange chamber, a four-way valve, an accumulator, and a part of a pipe connected to the refrigerant circuit are disposed in a heat exchange chamber of the condensing unit. A refrigeration system characterized by the following. 2. The refrigerating apparatus according to claim 1, wherein the accumulator is installed on a base plate of the heat exchange chamber, and the fan is attached to a fan bracket installed on the accumulator. 3. A cooling unit and a condensing unit, wherein the inside of the housing of the condensing unit is partitioned into a machine room and a heat exchange room by a partition plate, and at least a compressor is installed in the machine room. In a refrigeration apparatus having at least a condenser and a fan disposed in a heat exchange chamber, a receiver constituting a refrigerant circuit is disposed on a base plate in the heat exchange chamber of the condensing unit, and the fan disposed on the receiver is provided. A refrigeration apparatus, wherein the fan is attached to a bracket.