JP2005106423A - Outdoor unit for air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outdoor unit for an air conditioner capable of restricting temperature rise of a compressor installed in a freezer chamber. <P>SOLUTION: In this outdoor unit 1 for an air conditioner, a ventilation port 14 is provided in a partition plate 5 parting the inside of a housing into a condenser chamber 8 in which a condenser fan 6 is installed and the freezer chamber 11 in which the compressor 9 is installed. With the condenser fan 6 installed in the condenser chamber 8, air in the freezer chamber 11 is discharged through the ventilation port 14 in the partition plate 5 into the condenser chamber 8. Temperature rise in the freezer chamber 11 can thus be restricted, thereby temperature rise in the compressor 9 installed in the freezer chamber 11 can also be restricted. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an outdoor unit of an air conditioner (including a prefabricated refrigerator) having a refrigerator room in which a compressor is installed.

  2. Description of the Related Art Conventionally, commercial refrigerators in which a large amount of vegetables, fruits and other fresh foods such as meat and fish are used as refrigerators and freezers for a long period of time, for example, are constructed with a prefabricated building body. In this type of large refrigerator, a heat exchanging unit for operating a cooling unit disposed in the storage is disposed outside the storage body. Also, in an air conditioner that performs cooling / heating operations, the outdoor unit is provided with a heat exchange unit that is connected to an indoor cooling / heating unit. In this regard, the present invention relates to a heat exchange unit of a prefabricated refrigerator and a heat exchange unit of an air conditioner. For convenience of explanation, these heat exchange units are described as an outdoor unit of an air conditioner.

Conventionally, in an outdoor unit of an air conditioner, various devices have been made in order to efficiently cool equipment and parts. (For example, refer to Patent Document 1, Patent Document 2, and Patent Document 3).
JP-A-5-66028 JP-A-8-278042 JP-A-9-89312

  In this regard, for example, the method described below has been used to lower the temperature of the compressor. Here, in order to explain the method of lowering the temperature of the compressor, first, the refrigeration circuit of the outdoor unit of the air conditioner will be explained based on FIG. When cooling is performed by the air conditioner, as shown in FIG. 11, the refrigerant evaporated in the indoor cooler 102 by the indoor air from the indoor fan 101 becomes high-temperature and high-pressure gas by the compressor 103 of the outdoor unit. The refrigerant gas that has become high temperature and high pressure by the compressor 103 of the outdoor unit is cooled and condensed in the condenser 105 of the outdoor unit by the outside air from the outdoor fan 104. The refrigerant condensed by the condenser 105 of the outdoor unit expands by the expansion valve 106 of the indoor unit, and then evaporates by taking heat from the indoor air of the indoor fan 101 by the indoor cooler 102. At this time, the indoor air is cooled by the heat of evaporation of the refrigerant to become cool air, and a cooling effect is generated. The evaporated refrigerant is sent again to the compressor 103 of the outdoor unit, and the same cycle is repeated.

  At this time, in order to lower the temperature of the compressor 103 of the outdoor unit, the solenoid valve 107 of the outdoor unit is opened, and a part of the refrigerant condensed by the condenser 105 of the outdoor unit is removed from the outdoor unit via the liquid injection capillary 108. Returning to the compressor 103 of the machine, the refrigerant was evaporated by the compressor 103 of the outdoor unit.

  However, during the daytime in the summer when the ambient temperature is very high, the high pressure of the refrigerant increases, and the temperature of the compressor 103 of the outdoor unit becomes high. There is also a limit in suppressing the temperature rise of the compressor 103.

  Then, this invention is made | formed in view of the point mentioned above, and makes it a subject to provide the outdoor unit of the air conditioner which can suppress the temperature rise of the compressor installed in the refrigerator room. .

  In order to solve this problem, the invention according to claim 1 includes an outer casing formed of a plurality of panels, a condenser fan provided in the outer casing, and an inner casing provided in the outer casing. The interior of the outer casing is partitioned into a compressor, an accumulator installed in the outer casing, a condenser chamber in which the condenser fan is installed, and a refrigerator room in which the compressor and the accumulator are installed. In the outdoor unit of the air conditioner having a partition plate, a vent hole provided in the partition plate, and a refrigerator room provided in a base panel which is one of the panels of the outer casing and in the interior of the outer casing And an intake port that communicates with the vehicle.

  The invention according to claim 2 is the outdoor unit of the air conditioner according to claim 1, wherein the vent of the partition plate is formed in a cut-and-raised shape and disposed at a lower portion of the partition plate. It has been characterized.

  The invention according to claim 3 is the outdoor unit of the air conditioner according to claim 1 or 2, characterized in that the air inlet of the base panel is arranged directly below the accumulator. Yes.

  That is, in the outdoor unit of the air conditioner of the present invention, vent holes are provided in the partition plate that partitions the interior of the outer casing into the condenser chamber in which the condenser fan is installed and the refrigerator room in which the compressor is installed. Since the condenser fan installed in the condenser room allows the air in the refrigerator room to be discharged into the condenser room through the vents in the partition plate, and the temperature rise in the refrigerator room can be suppressed. The temperature rise of the compressor installed in the room can also be suppressed.

  Here, in the outdoor unit of the air conditioner of the present invention, an air inlet that communicates with the refrigerator room inside the outer casing is provided in a base panel that is one of the panels of the outer casing, and a vent hole is provided in the partition plate. When the air in the refrigerator room is discharged into the condenser room, the outside air flows into the refrigerator room through the intake port of the base panel, so that the air in the refrigerator room is smoothly discharged, and the base It is also possible to prevent rainwater and the like from entering the refrigerator room through the intake port of the panel.

  Further, in the outdoor unit of the air conditioner of the present invention, if the vent of the partition plate is formed in a cut-and-raised shape and disposed at the lower part of the partition plate, rainwater or the like can be stored in the refrigerator via the vent of the partition plate Intrusion into the room can be prevented.

  In addition, in the outdoor unit for an air conditioner according to the present invention, if the air inlet of the base panel is arranged directly under the accumulator, the condensed water from the accumulator is efficiently discharged from the air inlet of the base panel to the outside of the apparatus. be able to.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The perspective view of the outdoor unit of the air conditioner of this Embodiment is shown in FIG. As shown in FIG. 2, a front panel 3, a rear panel 4, a wire looper 21, and the like are assembled to the base panel 2 in the outdoor unit 1 of the air conditioner of the present embodiment. A side panel is assembled between the front panel 3 and the rear panel 4, and an upper panel is assembled on the front panel 3, the rear panel 4, and the wire looper 21. And the upper panel is omitted. Therefore, a side panel and an upper panel (not shown) are added to the illustrated base panel 2, front panel 3, rear panel 4, and wire looper 21, and the housing of the outdoor unit 1 of the air conditioner of this embodiment is added. Is configured.

  Further, in the housing of the outdoor unit 1 of the air conditioner according to the present embodiment, a divider plate 5 is provided with a condenser chamber 8 in which a condenser fan 6 and a condenser 7 are installed, a compressor 9, an accumulator 10, and the like. Is partitioned into a refrigerator room 11 in which is installed. Reference numeral 12 denotes a solenoid valve for returning a part of the refrigerant condensed in the condenser 7 to the compressor 9. Reference numeral 13 denotes a liquid injection capillary serving as a path for returning a part of the refrigerant condensed in the condenser 7 to the compressor 9.

  As shown in FIG. 1, a plurality of vent holes 14 cut and raised so as to protrude toward the condenser chamber 8 are provided below the partition plate 5. Further, immediately below the accumulator 10, A plurality of intake ports 15 are provided in the base panel 2. In FIG. 1, for convenience of explanation, the front panel 3 and the wire looper 21 are omitted from the outdoor unit 1 of the air conditioner shown in FIG. 2.

  Therefore, in the outdoor unit 1 of the air conditioner according to the present embodiment, when the condenser fan 6 is driven, the inside of the condenser chamber 8 becomes slightly negative pressure, so that the refrigeration is performed via the vent hole 14 of the partition plate 5. The air in the machine room 11 is sucked into the condenser room 8, and the temperature in the refrigerator room 11 can be lowered. As a result, the solenoid valve 12 is opened, a part of the refrigerant condensed in the condenser 7 is returned to the compressor 9 via the liquid injection capillary 13, and the refrigerant is evaporated by the compressor 9. In addition, the temperature in the refrigerator room 11 can be lowered even in the daytime in the summer when the ambient temperature becomes so high that the temperature rise of the compressor 9 cannot be suppressed, and thus installed in the refrigerator room 11. The temperature of the compressor 9 can also be lowered.

  The vent hole 14 of the partition plate 5 has a shape that is cut and raised so as to protrude toward the condenser chamber 8, and the opening on the condenser chamber 8 side is on the lower side. Therefore, the rainwater sucked into the condenser chamber 8 by the condenser fan 6 is supplied to the refrigerator room 11 through the vent hole 14 of the partition board 5. Intrusion can be prevented.

  Further, since the intake port 15 of the base panel 2 is provided immediately below the accumulator 10 installed in the refrigerator room 11, the accumulator 10 is not only sucked into the refrigerator room 11 but also cooled by a low-pressure refrigerant. It can also serve as a discharge port for discharging condensed water generated and dropped to the outside of the machine.

  Moreover, in the outdoor unit 1 of the air conditioner of this Embodiment, as shown in FIG. 3, the base panel 2 is drawn so that the inner side is high and the outer peripheral part is low. And in the outer peripheral part in the low position of the base panel 2, one drain port 31 is provided. Further, as shown in FIG. 4, both end side plates 7 a and 7 b of the condenser 7 bent into an L shape are screwed at the outer peripheral portion at the lower position of the base panel 2, and the bent portion 7 c of the condenser 7 is fixed. Are fixed on the inner side of the base panel 2 at a high position.

  Further, as shown in FIG. 5, in the housing of the outdoor unit 1 of the air conditioner of the present embodiment, a condenser fan 6, a condenser 7, and the like are installed by a partition plate 5 to perform heat exchange. 8 and a compressor 9, an accumulator 10, and the like are installed and is partitioned into a refrigerator room 11 in which a main part of the refrigeration circuit is accommodated. In this respect, in the partition plate 5 shown in FIG. 5, unlike the one shown in FIG. 1, a waterproof member 32 is attached to the lower part, and is transmitted over the base panel 2, from the condenser room 8 to the refrigerator room. 11 prevents water from entering. In FIG. 5, for convenience of explanation, the front panel 3, the wire looper 21, and the rear panel 4 are omitted from the outdoor unit 1 of the air conditioner shown in FIG.

  Further, as shown in FIG. 6, in the housing of the outdoor unit 1 of the air conditioner of the present embodiment, the condenser 7 is bent at a relatively large angle such that the cross section of the cooling pipe or the cooling fin is not greatly deformed. Therefore, a space A is formed between the bent portion 7 c of the condenser 7 and the wire looper 21. And in the lower part of space A, the drain port 31 formed in the outer peripheral part in the low position of the base panel 2 is located. Further, the cooling pipes and cooling fins of the condenser 7 are protected by a wire looper 21. In FIG. 6, for convenience of explanation, a side panel 33 is shown for the outdoor unit 1 of the air conditioner shown in FIG.

  Moreover, as shown in FIG.7 and FIG.8, in the outdoor unit 1 of the air conditioner of this Embodiment, what cut | disconnected the pipe is welded to the base panel 2, and the drain port 31 is provided. . This pipe has a diameter into which a commercially available water hose can be fitted, and is shorter than the height of the base legs 2a and 2b, and when the outdoor unit 1 of the air conditioner of the present embodiment is placed. Does not touch the ground. In FIG. 7, for convenience of explanation, an upper panel 34 is shown for the outdoor unit 1 of the air conditioner shown in FIG.

  Further, as shown in FIG. 9, when the outdoor unit 1 of the air conditioner of the present embodiment is placed, it is usually placed on the two lower bases 36. Therefore, a commercially available water hose 35 is provided. Can be easily connected to the drain port 31 for use. This point is the same even when the outdoor unit 1 of the air conditioner of the present embodiment is stacked in two stages by the dedicated frame 37, as shown in FIG. In FIG. 9, for convenience of explanation, an upper panel 34 is shown for the outdoor unit 1 of the air conditioner shown in FIG. Further, in FIG. 10, for convenience of explanation, a side panel 33 and an upper panel 34 are shown with respect to the outdoor unit 1 of the air conditioner shown in FIG. 2.

  In addition, in the outdoor unit 1 of the air conditioner of the present embodiment, the main drainage from the drainage port 31 is often due to intrusion of rainwater or the like by outdoor installation or cleaning of the condenser 7, both of which are base panels. 2 is guided to the drain port 31 by flowing from the high inner side to the lower outer peripheral part. Further, water that has entered the condenser chamber 8 is also guided to the drain port 31 through the gap at the bottom of the condenser 7.

  Therefore, in the outdoor unit 1 of the air conditioner according to the present embodiment, the space A formed between the bent portion 7c of the condenser 7 and the wire looper 21 can be effectively used. Moreover, since it drains from the one drain port 31 provided in the base panel 2, the lower part of the outdoor unit 1 of the air conditioner of this Embodiment does not become flooded. Moreover, since the drain port 31 is pipe-shaped and can be used by connecting a commercially available water hose 35 to the drain port 31, a predetermined place is provided via the commercially available water hose 35 connected to the drain port 31. It became possible to guide the drainage (see FIG. 9). Therefore, even if the outdoor units 1 of the air conditioner of the present embodiment are stacked in two stages, it is possible to prevent the one installed in the lower stage from getting wet with the drainage of the one installed in the upper stage, which is sanitary (FIG. 10). reference). In addition, if the wire looper 21 is removed, dust clogged in the drain port 31 provided in the base panel 2 can be easily removed.

  As described above in detail, the outdoor unit 1 of the air conditioner according to the present embodiment includes the side panel 33 and the upper panel 34 in addition to the base panel 2, the front panel 3, the rear panel 4, and the wire looper 21. The constructed housing, the condenser fan 6 installed in the housing, the compressor 9 installed in the housing, the accumulator 10 installed in the housing, and the condenser chamber in which the condenser fan 6 is installed. 8 and a refrigerator room 11 in which a compressor 9 and an accumulator 10 are installed, and a partition plate 5 that partitions the inside of the housing, and further, a vent hole 14 is provided in the partition plate 5.

  In this regard, in the outdoor unit 1 of the air conditioner of the present embodiment, a partition that partitions the interior of the housing into a condenser chamber 8 in which a condenser fan 6 is installed and a refrigerator room 11 in which a compressor 9 is installed. A vent hole 14 is provided in the plate 5, and the air in the refrigerator room 11 is discharged into the condenser chamber 8 through the vent hole 14 in the partition plate 5 by the condenser fan 6 installed in the condenser chamber 8. And since the temperature rise in the refrigerator room 11 can be suppressed, the temperature rise of the compressor 9 installed in the refrigerator 11 room can also be suppressed.

  However, if the solenoid valve 12 is opened, a part of the refrigerant condensed in the condenser 7 is returned to the compressor 9 via the liquid injection capillary 13, and the refrigerant is evaporated in the compressor 9. 9 can also be suppressed, but in this method, since the amount of refrigerant to the indoor cooler (not shown) is reduced by the amount returned to the compressor 9, the refrigeration capacity is lowered. In the outdoor unit 1 of this air conditioner, the amount of refrigerant to the indoor cooler (not shown) does not decrease, so the refrigeration capacity does not decrease.

  In addition, in the outdoor unit 1 of the air conditioner according to the present embodiment, as described above, in addition to suppressing the temperature rise of the compressor 9 installed in the refrigerator 11 room by the vent hole 14 in the partition plate 5. Then, the solenoid valve 12 is opened, a part of the refrigerant condensed in the condenser 7 is returned to the compressor 9 through the liquid injection capillary 13, and the refrigerant is evaporated by the compressor 9, whereby the compressor 9 If the temperature rise is suppressed, the temperature of the compressor 9 installed in the refrigerator room 11 can be more effectively lowered even in the daytime in summer when the ambient temperature becomes very high.

  Moreover, in the outdoor unit 1 of the air conditioner according to the present embodiment, as shown in FIGS. 1 and 2, the intake port 15 communicating with the refrigerator room 11 inside the housing is one of the panels constituting the housing. When the air in the refrigerator room 11 is discharged into the condenser chamber 8 through the vent hole 14 in the base panel 2 through the vent hole 14, it is refrigerated through the air inlet 15 of the base panel 2. Since the outside air flows into the machine room 11, the air in the refrigerator room 11 is smoothly discharged, and rainwater and the like are prevented from entering the refrigerator room 11 through the air inlet 15 of the base panel 2. it can.

  Moreover, in the outdoor unit 1 of the air conditioner according to the present embodiment, as shown in FIG. 1, the vent hole 14 of the partition plate 5 is formed in a cut-and-raised shape and disposed at the lower portion of the partition plate 5. Therefore, rainwater or the like can be prevented from entering the refrigerator room 11 through the vent hole 14 of the partition plate 5.

  Moreover, in the outdoor unit 1 of the air conditioner according to the present embodiment, the intake port 15 of the base panel 2 is disposed directly below the accumulator 10, so that dew condensation water from the accumulator 10 is efficiently removed from the base panel 2. The air can be discharged from the intake port 15 to the outside of the machine.

In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the meaning.
For example, since the intake port 15 of the base panel 2 is provided directly below the accumulator 10 installed in the refrigerator room 11 as described above, it has cooled down as well as intake air to the refrigerator room 11. It can also serve as a discharge port for discharging condensed water that is generated and dropped in the accumulator 10 by the low-pressure refrigerant. In this regard, when the air conditioner is used exclusively for the role of intake air, the intake port can be provided anywhere as long as the refrigerator room 11 is partitioned from the outside of the apparatus. However, if it is provided on the base panel 2 like the air inlet 15, it is possible to prevent rainwater from entering the refrigerator room 11 from outside the machine.

  The present invention can be applied to an outdoor unit having a partition plate that separates a compressor of a refrigeration circuit and a condenser fan.

It is a perspective view of the outdoor unit of the air conditioner by one Embodiment of this invention. It is a perspective view of the outdoor unit of the air conditioner by one Embodiment of this invention. It is a perspective view of the base panel of the outdoor unit of the air conditioner by one Embodiment of this invention. In the outdoor unit of the air conditioner by one Embodiment of this invention, it is a perspective view of the base panel of the state in which the condenser was assembled | attached. It is a perspective view of the outdoor unit of the air conditioner by one Embodiment of this invention. It is a top view of the outdoor unit of the air conditioner by one Embodiment of this invention. It is a rear view of the outdoor unit of the air conditioner by one Embodiment of this invention. It is a partial bottom view of the outdoor unit of the air conditioner by one Embodiment of this invention. It is the rear view of the outdoor unit of the air conditioner by one Embodiment of this invention, Comprising: It is the figure which showed an example of the state installed in the ground. It is the front view of the outdoor unit of the air conditioner by one Embodiment of this invention, Comprising: It is the figure which showed an example of the state installed in 2 steps | paragraphs. It is the figure which showed the freezing circuit in the outdoor unit of the air conditioner of background art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outdoor unit 2 of an air conditioner Base panel 3 Front panel 4 Rear panel 5 Partition plate 6 Condenser fan 7 Condenser 8 Condenser chamber 9 Compressor 10 Accumulator 11 Refrigerator chamber 12 Solenoid valve 13 Liquid injection capillary 14 Vent 15 Intake Mouth 21 Wire looper 33 Side panel 1 Upper panel

Claims (3)

An outer casing composed of a plurality of panels, a condenser fan installed in the outer casing, a compressor installed in the outer casing, an accumulator installed in the outer casing, and the condenser In an outdoor unit of an air conditioner having a condenser chamber in which a fan is installed and a partition plate that partitions the inside of the outer casing into a compressor room in which the compressor and the accumulator are installed,
A vent provided in the partition plate;
An air conditioner outdoor unit comprising: an air inlet provided in a base panel that is one of the panels of the outer casing and communicating with a refrigerator room inside the outer casing.   The outdoor unit for an air conditioner according to claim 1, wherein the vent of the partition plate is formed in a cut-and-raised shape and is disposed at a lower portion of the partition plate.   The outdoor unit for an air conditioner according to claim 1 or 2, wherein an air inlet of the base panel is disposed directly below the accumulator.

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