WO2021001925A1

WO2021001925A1 - Outdoor unit of air conditioner

Info

Publication number: WO2021001925A1
Application number: PCT/JP2019/026302
Authority: WO
Inventors: 裕一穐山
Original assignee: 三菱電機株式会社
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2021-01-07
Also published as: JP7118273B2; JPWO2021001925A1; CN213841140U

Abstract

This outdoor unit of an air conditioner according to the present invention is provided with an outer shell part, a partition plate that partitions the inside of the outer shell part, a compressor, and a first soundproof member that surrounds an outer peripheral section of the compressor, wherein a machine compartment is formed by a portion of the outer shell part and the partition plate, and the compressor is contained in the machine compartment, the outdoor unit being further provided with a sheet-like second soundproof member that extends vertically in the machine compartment. The second soundproof member is provided with a non-woven fabric on the surface on the compressor side; and in the outer shell part, when a portion that configures the front surface section of the machine compartment is a first front surface section, a portion that configures the side surface section of the machine compartment is a first side surface section, and a portion that configures the rear surface section of the machine compartment is a first rear surface section, the second sound proof member is disposed in a space surrounded by the partition plate, the first soundproof member, the first front surface section, the first side surface section, and the first rear surface section so as not to be in contact with the first soundproof member, the first front surface section, the first side surface section, and the first rear surface section.

Description

Outdoor unit of air conditioner

The present invention relates to an outdoor unit of an air conditioner that reduces noise.

Conventionally, the outdoor unit of an air conditioner is provided with an outer shell portion and a partition plate for partitioning the inside of the outer shell portion. A machine room is formed by a part of the outer shell and a partition plate. A compressor is housed in this machine room. When the compressor is driven, noise is generated from the compressor. Therefore, the conventional outdoor unit is provided with a soundproofing material that surrounds the outer peripheral portion of the compressor. However, noise may leak from the soundproofing material that surrounds the outer periphery of the compressor. The noise leaking from the soundproofing material surrounding the outer peripheral portion of the compressor is, for example, the noise transmitted to the outside of the soundproofing material through the gap of the soundproofing material. Further, for example, the noise leaking from the soundproof material surrounding the outer peripheral portion of the compressor is generated when the compressor or the refrigerant pipe connected to the compressor comes into contact with the soundproof material and the vibration of the compressor is transmitted to the soundproof material. It's noise. For this reason, in the outdoor unit of a conventional air conditioner, a soundproofing material is provided at a portion constituting the machine room on the back surface of the outer shell, and noise leaked from the soundproofing material surrounding the outer peripheral portion of the compressor is emitted from the outdoor unit. A device that suppresses leakage to the outside has also been proposed (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2012-197997

The noise leaked from the soundproofing material that surrounds the outer periphery of the compressor is reflected by the partition plate that forms part of the machine room and propagates in a specific direction. In this case, the noise of the outdoor unit increases in the direction in which the noise reflected by the partition plate propagates. In order to suppress this noise, it is necessary to disperse the direction in which this noise propagates. However, in the conventional outdoor unit which aims to suppress the noise leaked from the soundproofing material surrounding the outer peripheral portion of the compressor from leaking to the outside of the outdoor unit, it is provided outside the soundproofing material surrounding the outer peripheral portion of the compressor. The soundproofing material is provided on the back surface of the outer shell. The position of the soundproofing material provided on the back surface of the outer shell portion is far from the position where the noise leaked from the soundproofing material surrounding the outer peripheral portion of the compressor is reflected by the partition plate. For this reason, the conventional outdoor unit, which is designed to prevent the noise leaked from the soundproofing material surrounding the outer peripheral portion of the compressor from leaking to the outside of the outdoor unit, transmits the noise reflected by the partition plate and propagated in a specific direction. It cannot be sufficiently dispersed by the soundproofing material provided on the back surface of the outer shell. Therefore, in the conventional outdoor unit, which is designed to prevent the noise leaked from the soundproofing material surrounding the outer peripheral portion of the compressor from leaking to the outside of the outdoor unit, when the noise leaks from the soundproofing material surrounding the outer peripheral portion of the compressor, There was a problem that the noise of the outdoor unit could not be sufficiently suppressed.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to obtain an outdoor unit of an air conditioner capable of suppressing noise of an outdoor unit more than before.

The outdoor unit of the air conditioner according to the present invention includes an outer shell portion, a partition plate for partitioning the inside of the outer shell portion, a compressor, and a first soundproofing material surrounding the outer peripheral portion of the compressor. A machine room is formed by a part of a portion and the partition plate, and the outdoor unit of an air conditioner in which the compressor is housed in the machine room, which is a plate-shaped second extending in the machine room in the vertical direction. A soundproofing material is further provided, and the second soundproofing material is provided with a non-woven fabric on the surface on the compressor side, and a portion of the outer shell portion constituting the front portion of the machine room is designated as the first front surface portion. When the portion constituting the side surface portion of the machine room is the first side surface portion and the portion constituting the back surface portion of the machine room is the first back surface portion, the second soundproofing material is the first soundproofing material, the said. In the partition plate, the first soundproofing material, the first front surface portion, the first side surface portion and the first back surface portion so as not to touch the first front surface portion, the first side surface portion and the first back surface portion. It is located in an enclosed space.

In the outdoor unit of the air conditioner according to the present invention, the second soundproofing material provided outside the first soundproofing material surrounding the outer peripheral portion of the compressor is provided outside the soundproofing material surrounding the outer peripheral portion of the compressor. Compared with the conventional soundproofing material, the noise leaked from the first soundproofing material is arranged at a position closer to the position where it is reflected on the partition plate. Therefore, in the outdoor unit of the air conditioner according to the present invention, the noise reflected by the partition plate and propagated in a specific direction can be dispersed by the second soundproofing material. Therefore, the outdoor unit according to the present invention can suppress the noise of the outdoor unit more than before.

It is a refrigerant circuit diagram of the air conditioner which used the outdoor unit which concerns on Embodiment 1. FIG. FIG. 5 is a perspective view of the outdoor unit according to the first embodiment as viewed from the front right side. It is a perspective view which looked at the outdoor unit which concerns on Embodiment 1 from the front right side, and is the figure which showed the state which the top surface part, the front part part, the left side side part part, the right side side part, and the back part of the outer shell part were removed. is there. It is a figure which observed the periphery of the compressor of the outdoor unit which concerns on Embodiment 1 from the side. It is a figure which observed the cross section of the machine room of the outdoor unit which concerns on Embodiment 1 from above. It is a figure which observed the cross section of the machine room of the outdoor unit which concerns on Embodiment 2 from above. It is a figure which looked at the 2nd soundproofing material which concerns on Embodiment 3 from the side. It is a vertical sectional view of the 2nd soundproofing material which concerns on Embodiment 4. FIG.

An example of the outdoor unit of the air conditioner according to the present invention will be described in each of the following embodiments with reference to drawings and the like. In each of the drawings below, the relationship between the sizes of the constituent members may differ from the actual product in which the present invention is carried out. Further, in each of the following drawings, the configurations with the same reference numerals are the same or equivalent configurations. In addition, the forms of each configuration described in the following embodiments are merely examples. The outdoor unit of the air conditioner according to the present invention is not limited to the configurations described in the following embodiments. For example, the outdoor unit of the air conditioner according to the present invention is not limited to the outdoor unit used in the air conditioner provided with the refrigerant circuit shown in FIG. 1 described later.

Embodiment 1.
FIG. 1 is a refrigerant circuit diagram of an air conditioner in which the outdoor unit according to the first embodiment is used.
The air conditioner 1 in which the outdoor unit 2 according to the first embodiment is used includes a refrigeration cycle circuit 10. The refrigeration cycle circuit 10 is configured by connecting a compressor 40, a four-way switching valve 11, an outdoor heat exchanger 12, an indoor heat exchanger 13, an expansion valve 14, and an expansion valve 15 with a refrigerant pipe. The type of refrigerant circulating in the refrigeration cycle circuit 10 is not limited. Various refrigerants such as R410A, R32, water and CO ₂ can be used as the refrigerant circulating in the refrigeration cycle circuit 10.

The compressor 40 compresses the refrigerant. The compressor 40 includes a main body 41 having a compression mechanism for compressing the refrigerant. Further, the main body 41 includes a container 42 which is a closed container. The compression mechanism unit is housed in the container 42. Further, the compressor 40 includes a suction muffler 43 which is a closed container. The suction muffler 43 separates the refrigerant flowing into the suction muffler 43 into a gaseous refrigerant and a liquid refrigerant. The refrigerant outlet of the suction muffler 43 is connected to the refrigerant inlet of the main body 41. Then, the gaseous refrigerant is supplied from the suction muffler 43 to the main body 41. This gaseous refrigerant is compressed by the compression mechanism of the main body 41 and then discharged from the main body 41. That is, the inflow port of the refrigerant of the suction muffler 43 is the suction port of the refrigerant of the compressor 40. Further, the outlet of the refrigerant of the main body 41, in other words, the outlet of the refrigerant of the container 42 is the discharge port of the refrigerant of the compressor 40.

In the following, the refrigerant pipe connected to the refrigerant suction port of the compressor 40 will be referred to as the suction pipe 18. In the first embodiment, the suction pipe 18 is connected to the upper part of the suction muffler 43. Further, in the following, the refrigerant pipe connected to the refrigerant discharge port of the compressor 40 will be referred to as a discharge pipe 19. In the first embodiment, the discharge pipe 19 is connected to the upper part of the container 42.

The four-way switching valve 11 is connected to the refrigerant suction port of the compressor 40, the refrigerant discharge port of the compressor 40, the outdoor heat exchanger 12, and the indoor heat exchanger 13. The four-way switching valve 11 switches the connection destination of the refrigerant discharge port of the compressor 40 to the outdoor heat exchanger 12 or the indoor heat exchanger 13. In other words, the four-way switching valve 11 switches the connection destination of the refrigerant suction port of the compressor 40 to the outdoor heat exchanger 12 or the indoor heat exchanger 13.

The outdoor heat exchanger 12 functions as an evaporator during the heating operation and as a condenser during the cooling operation. In the first embodiment, the fan 21 is provided in the vicinity of the outdoor heat exchanger 12. The fan 21 supplies the outdoor heat exchanger 12 with outdoor air that is a heat exchange target of the refrigerant flowing through the outdoor heat exchanger 12. The fan 21 is driven by a motor 22. The indoor heat exchanger 13 functions as a condenser during the heating operation and as an evaporator during the cooling operation. The expansion valve 14 is provided in the refrigerant pipe connecting the outdoor heat exchanger 12 and the indoor heat exchanger 13, and regulates the flow rate of the refrigerant flowing through the outdoor heat exchanger 12. The expansion valve 15 is provided at a position closer to the indoor heat exchanger 13 than the expansion valve 14 in the refrigerant pipe connecting the outdoor heat exchanger 12 and the indoor heat exchanger 13, and flows through the indoor heat exchanger 13. Adjust the flow rate of the refrigerant.

Further, the air conditioner 1 is provided with various sensors and a control device 38. Specifically, the pressure sensor 31 detects the pressure of the refrigerant discharged from the compressor 40. The pressure sensor 32 detects the pressure of the refrigerant sucked into the compressor 40. The temperature sensor 33 detects the temperature of the outdoor air supplied to the outdoor heat exchanger 12. The temperature sensor 34 detects the temperature of the refrigerant flowing through the outdoor heat exchanger 12. The temperature sensor 35 detects the temperature of the refrigerant flowing between the expansion valve 15 and the indoor heat exchanger 13. The temperature sensor 36 detects the temperature of the refrigerant flowing through the indoor heat exchanger 13. The temperature sensor 37 detects the temperature of the indoor air supplied to the indoor heat exchanger 13. The control device 38 controls the drive frequency of the compression mechanism of the compressor 40, the rotation speed of the fan 21, the opening degree of the expansion valve 14, the opening degree of the expansion valve 15, and the like based on the detected values of these sensors. ..

Each of the above-mentioned configurations constituting the air conditioner 1 is housed in the outdoor unit 2 or the indoor unit 3. Specifically, the outdoor unit 2 includes a four-way switching valve 11, an outdoor heat exchanger 12, an expansion valve 14, a fan 21, a motor 22, a pressure sensor 31, a pressure sensor 32, a temperature sensor 33, a temperature sensor 34, and a control device. 38 and the compressor 40 are housed in it. The indoor unit 3 houses an indoor heat exchanger 13, an expansion valve 15, a temperature sensor 35, a temperature sensor 36, and a temperature sensor 37. Further, in the air conditioner 1 according to the first embodiment, the refrigerant pipe connecting the configuration of the refrigeration cycle circuit 10 provided in the outdoor unit 2 and the configuration of the refrigeration cycle circuit 10 provided in the indoor unit 3 is connected. An on-off valve 16 and an on-off valve 17 are provided. The on-off valve 16 and the on-off valve 17 are housed in the outdoor unit 2. The air conditioner 1 according to the first embodiment includes two indoor units 3. These indoor units 3 are connected to the outdoor unit 2 in parallel.

FIG. 2 is a perspective view of the outdoor unit according to the first embodiment as viewed from the front right side. FIG. 3 is a perspective view of the outdoor unit according to the first embodiment as viewed from the front right side, and shows the outdoor unit in a state where the top surface portion, the front surface portion, the left side surface portion, the right side surface portion, and the back surface portion of the outer shell portion are removed. It is a figure shown.
The outdoor unit 2 includes, for example, an outer shell portion 50 having a substantially rectangular parallelepiped shape. Further, the outer shell portion 50 is provided with a plurality of handles 59 that the operator grips when moving the outdoor unit 2. The method of configuring the outer shell portion 50 is not particularly limited, but in the first embodiment, the top panel 51, the base 52, the front panel 53, the service panel 54, the right side panel 55, the left side panel 56, the cover panel 57, and the like. The cover panel 58 constitutes the outer shell portion 50.

The top panel 51 constitutes the top of the outer shell 50. The base 52 constitutes a bottom surface portion of the outer shell portion 50. The front panel 53 constitutes a left side portion of the front surface portion of the outer shell portion 50. The service panel 54 constitutes an upper portion on the right side of the front surface portion of the outer shell portion 50 and an upper portion on the front side of the right side surface portion of the outer shell portion 50. The right side panel 55 constitutes an upper portion on the rear side of the right side surface portion of the outer shell portion 50 and an upper portion on the right side of the back surface portion of the outer shell portion 50. The left side panel 56 constitutes the left side surface of the outer shell 50. The cover panel 57 constitutes a lower portion on the right side of the front surface portion of the outer shell portion 50 and a lower portion on the front side of the right side surface portion of the outer shell portion 50. The cover panel 58 constitutes a lower portion on the rear side of the right side surface portion of the outer shell portion 50 and a lower portion on the right side of the back surface portion of the outer shell portion 50.

The inside of the outer shell portion 50 is divided into a blower room 61 and a machine room 62 by a partition plate 60. That is, the machine room 62 is formed by a part of the outer shell portion 50 and the partition plate 60. The outdoor heat exchanger 12 is housed in the blower room 61. Although not shown in FIG. 3, the fan 21 and the motor 22 are also housed in the blower chamber 61. Further, the compressor 40 is housed in the machine room 62.

Conventionally, when the operation of the air conditioner is started and the compressor is driven, the compressor vibrates. Then, noise may be generated due to the vibration of this compressor. For this reason, some conventional air conditioners are provided with a soundproofing material that surrounds the outer peripheral portion of the compressor. The air conditioner 1 according to the first embodiment also includes a first soundproofing material 70 that surrounds the outer peripheral portion of the compressor 40. The first soundproofing material 70 has the same structure as the conventional soundproofing material. For example, the first soundproofing material 70 is configured as follows.

FIG. 4 is a side view of the periphery of the compressor of the outdoor unit according to the first embodiment. In FIG. 4, the first soundproofing material 70 is shown in cross section.
The side and the upper side of the compressor 40 are surrounded by the first soundproofing material 70. The first soundproofing material 70 includes a rubber portion 71 made of rubber, which constitutes an outer shell portion. That is, the rubber portion 71 has rigidity that can maintain the shape of the outer shell portion and has sound insulation. Further, the first soundproofing material 70 is provided with a non-woven fabric 72 on the inner peripheral surface of the rubber portion 71, in other words, on the surface of the rubber portion 71 facing the compressor 40. The non-woven fabric 72 has a sound absorbing effect.

By the way, conventionally, noise may leak from the soundproofing material that surrounds the outer peripheral part of the compressor. For example, the noise of the compressor leaks from the gap of the soundproofing material surrounding the outer peripheral portion of the compressor. Further, for example, the compressor or the refrigerant pipe connected to the compressor may come into contact with the soundproof material surrounding the outer peripheral portion of the compressor, and the vibration of the compressor may be transmitted to the soundproof material. In this case, noise is generated by the vibration of the soundproofing material surrounding the outer peripheral portion, and the noise leaks from the soundproofing material surrounding the outer peripheral portion of the compressor. For example, when the compressor or the refrigerant pipe connected to the compressor comes into contact with the soundproofing material surrounding the outer peripheral portion of the compressor due to an assembly error of the soundproofing material surrounding the outer peripheral portion of the compressor, an assembly error of the compressor, or the like. There is. Further, for example, the compressor or the refrigerant pipe connected to the compressor may come into contact with the soundproof material surrounding the outer peripheral portion of the compressor due to deformation due to aged deterioration of the soundproofing material surrounding the outer peripheral portion of the compressor. .. Further, for example, when the compressor is tilted by connecting the refrigerant pipe to the compressor, the compressor or the refrigerant pipe connected to the compressor may come into contact with the soundproofing material surrounding the outer peripheral portion of the compressor. ..

For this reason, in the outdoor unit of a conventional air conditioner, a soundproofing material is provided at a portion constituting the machine room on the back surface of the outer shell, and noise leaked from the soundproofing material surrounding the outer peripheral portion of the compressor is emitted from the outdoor unit. Some have been proposed to prevent leakage to the outside.

Here, the noise leaked from the soundproofing material surrounding the outer peripheral portion of the compressor is reflected by the partition plate that forms a part of the machine room and propagates in a specific direction. In this case, the noise of the outdoor unit increases in the direction in which the noise reflected by the partition plate propagates. In order to suppress this noise, it is necessary to disperse the direction in which this noise propagates. However, in the conventional outdoor unit which aims to suppress the noise leaked from the soundproofing material surrounding the outer peripheral portion of the compressor from leaking to the outside of the outdoor unit, it is provided outside the soundproofing material surrounding the outer peripheral portion of the compressor. The soundproofing material is provided on the back surface of the outer shell. The position of the soundproofing material provided on the back surface of the outer shell is far from the position where the noise leaked from the soundproofing material surrounding the outer peripheral portion of the compressor is reflected by the partition plate. For this reason, the conventional outdoor unit, which is designed to prevent the noise leaked from the soundproofing material surrounding the outer peripheral portion of the compressor from leaking to the outside of the outdoor unit, transmits the noise reflected by the partition plate and propagated in a specific direction. It cannot be sufficiently dispersed by the soundproofing material provided on the back surface of the outer shell. Therefore, in the conventional outdoor unit, which is designed to prevent the noise leaked from the soundproofing material surrounding the outer peripheral portion of the compressor from leaking to the outside of the outdoor unit, when the noise leaks from the soundproofing material surrounding the outer peripheral portion of the compressor, The noise of the outdoor unit could not be sufficiently suppressed.

Therefore, the outdoor unit 2 according to the first embodiment includes a second soundproofing material 80 in the machine room 62.

FIG. 5 is a view of a cross section of the machine room of the outdoor unit according to the first embodiment observed from above. In FIG. 5, the lower side of the paper surface is the front side of the outdoor unit 2. In other words, FIG. 5 is a plan view of the inside of the machine room 62. In explaining the second soundproofing material 80, the first front surface portion 63, the first side surface portion 64, and the first back surface portion 65 are defined as follows. The portion of the outer shell portion 50 that constitutes the front surface portion of the machine room 62 is referred to as the first front surface portion 63. The portion of the outer shell portion 50 that constitutes the side surface portion of the machine room 62 is referred to as the first side surface portion 64. The portion of the outer shell portion 50 that constitutes the back surface portion of the machine room 62 is referred to as the first back surface portion 65.

The second soundproofing material 80 is a plate-shaped material extending in the vertical direction. Further, the second soundproofing material 80 is provided with a non-woven fabric 84 on the surface on the compressor 40 side. In other words, the second soundproofing material 80 is provided with the non-woven fabric 84 on the surface of the first soundproofing material 70 side. Then, the second soundproof material 80 does not touch the first soundproof material 70, the first front surface portion 63, the first side surface portion 64, and the first back surface portion 65, so that the partition plate 60, the first soundproof material 70, and the first soundproof material 80 are not touched. It is arranged in a space surrounded by a front surface portion 63, a first side surface portion 64, and a first back surface portion 65.

In the first embodiment, the second soundproofing material 80 includes a first soundproofing section 81 and a second soundproofing section 82. The first soundproofing portion 81 is arranged between the first soundproofing material 70 and the first back surface portion 65. The end of the first soundproofing portion 81 on the partition plate 60 side is arranged in the vicinity of the partition plate 60. At this time, the end of the first soundproofing portion 81 on the partition plate 60 side may or may not be in contact with the partition plate 60. However, if the end of the first soundproofing portion 81 on the partition plate 60 side and the partitioning plate 60 are in contact with each other, noise will pass between the first soundproofing portion 81 and the partition plate 60 and the noise will be generated by the first back surface portion 65. It is possible to suppress transmission to the side, and the soundproofing effect of the outdoor unit 2 is improved. The second soundproofing portion 82 is arranged between the first soundproofing material 70 and the first side surface portion 64. In the first embodiment, the end portion of the first soundproofing portion 81 on the second soundproofing portion 82 side and the end portion of the second soundproofing portion 82 on the first soundproofing portion 81 side are connected. That is, in the first embodiment, the second soundproofing material 80 has a substantially L-shape in a plan view. Further, in the compressor 40 according to the first embodiment, the main body 41 is arranged closer to the partition plate 60 than the suction muffler 43.

As shown in FIG. 5, it is assumed that the noise leaked from the first soundproofing material 70 surrounding the outer peripheral portion of the compressor 40 is reflected at the position A of the partition plate 60 and propagates in the specific direction indicated by the broken line arrow. This noise is dispersed between the first soundproofing material 70 and the first soundproofing portion 81 of the second soundproofing material 80 while being reflected by the first soundproofing material 70 and the first soundproofing portion 81. I will do it. Further, the noise is absorbed by the non-woven fabric 84 on the surface of the first soundproofing portion 81 while being reflected by the first soundproofing material 70 and the first soundproofing portion 81. Further, the noise is attenuated while being reflected by the first soundproofing material 70 and the first soundproofing material 70. As described above, since the outdoor unit 2 according to the first embodiment includes the first soundproofing portion 81 of the second soundproofing material 80, the noise leaked from the first soundproofing material 70 leaks to the outside of the outdoor unit 2. This can be suppressed, and the noise of the outdoor unit 2 can be suppressed more than before.

Further, when the noise leaked from the first soundproofing material 70 surrounding the outer peripheral portion of the compressor 40 is reflected by the partition plate 60 and heads toward the second soundproofing portion 82 of the second soundproofing material 80, the noise is generated. , The first soundproofing material 70 and the second soundproofing part 82 reflect between the first soundproofing material 70 and the second soundproofing part 82 of the second soundproofing material 80. Then, as the noise is reflected by the first soundproofing material 70 and the second soundproofing unit 82, the direction of the noise is dispersed. Further, the noise is absorbed by the non-woven fabric 84 on the surface of the second soundproofing portion 82 while being reflected by the first soundproofing material 70 and the second soundproofing portion 82. Further, the noise is attenuated while being reflected by the first soundproofing material 70 and the second soundproofing unit 82. As described above, since the outdoor unit 2 according to the first embodiment includes the second soundproofing portion 82 of the second soundproofing material 80, the noise leaked from the first soundproofing material 70 leaks to the outside of the outdoor unit 2. This can be suppressed, and the noise of the outdoor unit 2 can be suppressed more than before.

Further, the first soundproofing portion 81 arranged between the first soundproofing material 70 and the first back surface portion 65 absorbs and suppresses noise leaking from the first soundproofing material 70 toward the first back surface portion 65. You can also do it. At this time, when compared with the conventional soundproofing material provided on the back surface of the outer shell portion, the first soundproofing portion 81 is arranged at a position closer to the first soundproofing material 70 than the conventional soundproofing material. With a size smaller than that of the conventional soundproofing material, it is possible to obtain the same soundproofing effect as the conventional soundproofing material. That is, the first soundproofing unit 81 can obtain the same soundproofing effect as the conventional soundproofing material at a lower cost than the conventional soundproofing material.

Further, the second soundproofing portion 82 arranged between the first soundproofing material 70 and the first side surface portion 64 absorbs and suppresses the noise leaking from the first soundproofing material 70 toward the first side surface portion 64. You can also do it.

In a plan view, the length of the first soundproofing portion 81 in the longitudinal direction is preferably longer than the length of the first soundproofing portion 81 in the first soundproofing material 70 in the longitudinal direction. When the space between the first soundproofing material 70 and the first soundproofing portion 81 is longer in the longitudinal direction of the first soundproofing portion 81, the noise reflected by the first soundproofing material 70 and the first soundproofing portion 81 is further suppressed. Because it can be done. Further, it is possible to more reliably absorb the noise leaking from the first soundproofing material 70 toward the first back surface portion 65. Further, in a plan view, the length of the second soundproofing portion 82 in the longitudinal direction is preferably longer than the length of the second soundproofing portion 82 in the first soundproofing material 70 in the longitudinal direction. When the space between the first soundproof material 70 and the second soundproof portion 82 is longer in the longitudinal direction of the second soundproof portion 82, the noise reflected by the first soundproof material 70 and the second soundproof portion 82 is further suppressed. Because it can be done. Further, it is possible to more reliably absorb the noise leaking from the first soundproofing material 70 toward the first side surface portion 64.

Further, the second soundproof material 80 according to the first embodiment includes the first soundproof part 81 and the second soundproof part 82, but the second soundproof material 80 is the first soundproof part 81 or the second soundproof part 82. It may have only one. As described above, the noise of the outdoor unit 2 can be suppressed more than before by using only one of the first soundproofing unit 81 and the second soundproofing unit 82.

As described above, the outdoor unit 2 of the air conditioner 1 according to the first embodiment has the outer shell portion 50, the partition plate 60 for partitioning the inside of the outer shell portion 50, the compressor 40, and the outer peripheral portion of the compressor 40. 1 The soundproofing material 70 is provided. A machine room 62 is formed by a part of the outer shell portion 50 and the partition plate 60, and the compressor 40 is housed in the machine room 62. Further, the outdoor unit 2 according to the first embodiment further includes a plate-shaped second soundproofing material 80 extending in the vertical direction in the machine room 62. The second soundproofing material 80 is provided with a non-woven fabric 84 on the surface on the compressor 40 side. Then, the second soundproof material 80 does not touch the first soundproof material 70, the first front surface portion 63, the first side surface portion 64, and the first back surface portion 65, so that the partition plate 60, the first soundproof material 70, and the first soundproof material 80 are not touched. It is arranged in a space surrounded by a front surface portion 63, a first side surface portion 64, and a first back surface portion 65.

In the outdoor unit 2 according to the first embodiment, the second soundproofing material 80 provided outside the first soundproofing material 70 surrounding the outer peripheral portion of the compressor 40 is the outside of the soundproofing material surrounding the outer peripheral portion of the compressor. Compared with the conventional soundproofing material provided in the above, the noise leaking from the first soundproofing material 70 is arranged at a position closer to the position where the noise is reflected by the partition plate 60. Therefore, in the outdoor unit 2 according to the first embodiment, the noise reflected by the partition plate 60 and propagated in a specific direction can be dispersed by the second soundproofing material 80. Therefore, the outdoor unit 2 according to the first embodiment can suppress the noise of the outdoor unit 2 more than before.

Embodiment 2.
The outdoor unit 2 may be provided with a third soundproofing material 90 as described later in the machine room. In the second embodiment, items not particularly described are the same as those in the first embodiment, and the same functions and configurations as those in the first embodiment are described by using the same reference numerals.

FIG. 6 is a view of a cross section of the machine room of the outdoor unit according to the second embodiment observed from above.
The outdoor unit 2 according to the second embodiment includes a third soundproofing material 90 in the machine room 62. The third soundproofing material 90 is a plate-shaped material extending in the vertical direction. Further, the third soundproofing material 90 is provided with a non-woven fabric 91 on the surface on the compressor 40 side. In other words, the third soundproofing material 90 is provided with the non-woven fabric 91 on the surface of the first soundproofing material 70 side.

As shown in FIG. 6, the third soundproofing material 90 is arranged between the partition plate 60 and the first soundproofing material 70. The third soundproofing material 90 is fixed to the partition plate 60 by, for example, adhesion or the like. By providing the third soundproofing material 90, it is possible to absorb noise toward the first front surface portion 63 through between the partition plate 60 and the first soundproofing material 70, and the outdoor unit shown in the first embodiment can be absorbed. More than 2, the noise of the outdoor unit 2 can be suppressed.

Further, in the outdoor unit 2 according to the second embodiment, the third soundproofing material 90 is also provided between the first soundproofing material 70, the second soundproofing portion 82 of the second soundproofing material 80, and the first front surface portion 63. It is provided. The third soundproofing material 90 is fixed to the second soundproofing portion 82 of the second soundproofing material 80, for example, by adhesion or the like. By providing the third soundproofing material 90, it is possible to absorb the noise that passes between the first soundproofing material 70 and the second soundproofing portion 82 and heads toward the first front surface portion 63, which is shown in the first embodiment. The noise of the outdoor unit 2 can be further suppressed as compared with the outdoor unit 2.

In the second embodiment, two third soundproofing materials 90 are provided in the machine room 62, but even if only one of the third soundproofing materials 90 is provided in the machine room 62, the outdoor area shown in the first embodiment is shown. The noise of the outdoor unit 2 can be further suppressed as compared with the machine 2.

Embodiment 3.
In the third embodiment, an example of a method for fixing the second soundproofing material 80 will be described. Further, in the third embodiment, an example of the shape of the second soundproofing material 80 will be described when there is a refrigerant pipe at the location where the second soundproofing material 80 is arranged. In the third embodiment, items not particularly described are the same as those of the first embodiment or the second embodiment, and the same reference numerals are used for the same functions and configurations as those of the first embodiment or the second embodiment. Will be described.

FIG. 7 is a side view of the second soundproofing material according to the third embodiment.
The second soundproofing material 80 according to the third embodiment includes at least one fixing portion 85 fixed to the partition plate 60 at the end portion on the partition plate 60 side. The method of fixing the fixing portion 85 and the partition plate 60 is not particularly limited. For example, the fixing portion 85 and the partition plate 60 may be fixed by screws. Further, for example, a convex portion is provided on one of the fixed portion 85 and the partition plate 60, a concave portion on which the convex portion is hooked is provided on the other side of the fixed portion 85 and the partition plate 60, and the convex portion is hooked on the concave portion to partition the fixed portion 85. The plate 60 may be fixed.

By providing the fixing portion 85 on the second soundproofing material 80 in this way, it becomes easy to arrange the second soundproofing material 80 at a desired position. Further, by providing the fixing portion 85, the end portion of the second soundproofing material 80 on the partition plate 60 side can be arranged in the vicinity of the partition plate 60. Therefore, it is possible to suppress the noise from being transmitted to the first back surface portion 65 side through between the first soundproofing portion 81 and the partition plate 60, and the soundproofing effect of the outdoor unit 2 is improved.

Further, in the machine room 62 of the outdoor unit 2 according to the third embodiment, a refrigerant pipe 20 is provided at a position where the second soundproofing material 80 is arranged. Therefore, the second soundproofing material 80 is formed with a notch 86 and a notch 87 which are opened downward and into which the refrigerant pipe 20 is inserted. Since the notch 86 and the notch 87 are open downward, the second soundproofing material 80 can be lowered even if the refrigerant pipe 20 is present by lowering the second soundproofing material 80 from above the refrigerant pipe 20 to the installation position. It can be installed easily.

Further, the width of the notch 87 at a position below the refrigerant pipe 20 is smaller than the width at the height of the refrigerant pipe 20. By forming the notch formed in the second soundproofing material 80 into a shape like the notch 87, the number of places where the second soundproofing material 80 is not installed can be reduced, and the deterioration of the soundproofing effect due to the formation of the notch can be suppressed. can do.

Embodiment 4.
In the fourth embodiment, an example of a specific structure of the second soundproofing material 80 will be described. In the fourth embodiment, the items not specifically described are the same as those of the first to third embodiments, and the same functions and configurations as those of the first to third embodiments are the same. It will be described using the code of.

FIG. 8 is a vertical sectional view of the second soundproofing material according to the fourth embodiment.
The second soundproofing material 80 according to the fourth embodiment includes a supporting material 88 having a higher rigidity than the non-woven fabric 84. The support member 88 is made of, for example, rubber. The non-woven fabric 84 is provided on the surface of the support member 88. In FIG. 8, the non-woven fabric 84 is provided on both sides of the support member 88, but the non-woven fabric 84 may be provided at least on the surface on the compressor 40 side.

By configuring the second soundproofing material 80 in this way, it is possible to prevent the second soundproofing material 80 from falling under its own weight.

1 air conditioner, 2 outdoor unit, 3 indoor unit, 10 refrigeration cycle circuit, 11 four-way switching valve, 12 outdoor heat exchanger, 13 indoor heat exchanger, 14 expansion valve, 15 expansion valve, 16 on-off valve, 17 on-off valve , 18 suction pipe, 19 discharge pipe, 20 refrigerant pipe, 21 fan, 22 motor, 31 pressure sensor, 32 pressure sensor, 33 temperature sensor, 34 temperature sensor, 35 temperature sensor, 36 temperature sensor, 37 temperature sensor, 38 control device , 40 compressor, 41 main body, 42 container, 43 suction muffler, 50 outer shell, 51 top panel, 52 base, 53 front panel, 54 service panel, 55 right side panel, 56 left side panel, 57 cover panel, 58 cover panel, 59 handle, 60 partition plate, 61 blower room, 62 machine room, 63 first front part, 64 first side surface part, 65 first back part, 70 first soundproof material, 71 rubber part, 72 non-woven fabric, 80 2nd soundproofing material, 81 1st soundproofing part, 82 2nd soundproofing part, 84 non-woven fabric, 85 fixed part, 86 notch, 87 notch, 88 support material, 90 3rd soundproofing material, 91 non-woven fabric.

Claims

Outer part and
A partition plate that partitions the inside of the outer shell,
With a compressor,
A first soundproofing material that surrounds the outer periphery of the compressor,
With
An outdoor unit of an air conditioner in which a machine room is formed by a part of the outer shell portion and the partition plate, and the compressor is housed in the machine room.
The machine room is further provided with a plate-shaped second soundproofing material extending in the vertical direction.
The second soundproofing material is provided with a non-woven fabric on the surface on the compressor side.
Of the outer shell, the portion constituting the front surface of the machine room is designated as the first front surface portion, the portion constituting the side surface portion of the machine room is designated as the first side surface portion, and the portion constituting the back surface portion of the machine room. When is the first back part,
The second soundproof material includes the partition plate, the first soundproof material, and the first front surface so as not to touch the first soundproof material, the first front surface portion, the first side surface portion, and the first back surface portion. An outdoor unit of an air conditioner arranged in a space surrounded by a unit, the first side surface portion, and the first back surface portion.
The outdoor unit of the air conditioner according to claim 1, wherein the second soundproofing material is arranged between the first soundproofing material and the first back surface portion.
The outdoor unit of the air conditioner according to claim 1 or 2, wherein the second soundproofing material is arranged between the first soundproofing material and the first side surface portion.
The machine room is further provided with a plate-shaped third soundproofing material extending in the vertical direction.
The third soundproofing material is provided with a non-woven fabric on the surface on the compressor side.
The outdoor unit of the air conditioner according to claim 3, wherein the third soundproofing material is arranged between the first soundproofing material, the second soundproofing material, and the first front surface portion.
The machine room is further provided with a plate-shaped third soundproofing material extending in the vertical direction.
The third soundproofing material is provided with a non-woven fabric on the surface on the compressor side.
The outdoor unit of the air conditioner according to any one of claims 1 to 4, wherein the third soundproofing material is arranged between the partition plate and the first soundproofing material.
The outdoor unit of the air conditioner according to any one of claims 1 to 5, wherein the second soundproofing material includes a fixing portion fixed to the partition plate.
The machine room is provided with a refrigerant pipe through which the refrigerant flows.
The outdoor unit of the air conditioner according to any one of claims 1 to 6, wherein the second soundproofing material is formed with a notch that opens downward and into which the refrigerant pipe is inserted.
The outdoor unit of the air conditioner according to claim 7, wherein the notch has a width at a position below the refrigerant pipe smaller than the width at the height of the refrigerant pipe.
The second soundproofing material includes a supporting material having a higher rigidity than the non-woven fabric.
The outdoor unit of the air conditioner according to any one of claims 1 to 8, wherein the non-woven fabric is provided on the surface of the support material.