Outdoor unit for air conditioner

Abstract

To provide an outdoor unit for an air conditioner capable of securely discriminating a type of a soundproof material through visual inspection when selecting the soundproof material in accordance with noise characteristics of a compressor.SOLUTION: An outdoor unit for an air conditioner according to one embodiment is an outdoor unit for an air conditioner including a casing and a compressor provided in the casing. A soundproof member for reducing noise generated from the compressor is disposed within the casing. A discrimination section capable of discriminating a type of the soundproof member is provided in the soundproof member. The discrimination section is formed by cutting out a part of the soundproof member.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to an outdoor unit of an air conditioner. [Background technology]

[0002] In the outdoor unit of an air conditioner, soundproofing measures are taken to prevent sounds from the compressor (such as vibration sounds and refrigerant discharge sounds; hereinafter, sometimes referred to as noise) from leaking outside. Soundproofing measures include wrapping sound-absorbing material around the compressor and placing sound-absorbing / insulating material on the inner walls of the machine room that houses the compressor (see, for example, Patent Document 1). Here, the sound-absorbing / insulating material is formed by combining a material with a higher density than the sound-absorbing material.

[0003] For example, sound-absorbing and insulating materials have a structure in which sound-insulating material is sandwiched between sound-absorbing materials. The high-frequency components of noise are absorbed by the sound-absorbing material, and the low-frequency components of noise are blocked by the sound-insulating material. As a result, the low-frequency components of noise that cannot be reduced by the sound-absorbing material alone are blocked, and both the high-frequency and low-frequency components of noise are reduced. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-100658 Summary of the Invention [Problem to be solved by the invention]

[0005] Here, different models of compressors are selected for installation in the outdoor unit depending on the required air conditioning capacity. The noise generated by the compressor may differ depending on the compressor model, and when placing sound-absorbing or sound-insulating material (hereinafter collectively referred to as soundproofing material) inside the outdoor unit housing, an appropriate soundproofing material is selected from among several types of soundproofing material depending on the noise characteristics of the compressor.

[0006] When selecting soundproofing materials according to the noise characteristics of a compressor, the size and shape of the soundproofing materials may remain the same, but the thickness or material of the soundproofing materials may be changed. In such cases, the thickness of the soundproofing materials may be changed by millimeters, which makes it difficult to distinguish visually, or the soundproofing materials may be similar in color even if the materials are different. Therefore, when selecting soundproofing materials according to the noise characteristics of a compressor, it is difficult to distinguish between types of soundproofing materials visually.

[0007] In view of the above circumstances, an object of the present invention is to provide an outdoor unit for an air conditioner that allows the type of soundproofing material to be visually distinguished with certainty when selecting soundproofing material according to the noise characteristics of the compressor. [Means for solving the problem]

[0008] In order to achieve the above object, an outdoor unit of an air conditioner according to one aspect of the present invention is an outdoor unit of an air conditioner having a housing and a compressor provided inside the housing. A soundproofing member for reducing noise emitted from the compressor is disposed inside the housing. The soundproofing member is provided with an identification portion that allows the type of the soundproofing member to be identified. The distinguishing portion is formed by cutting out a part of the soundproof member.

[0009] With such an outdoor unit of an air conditioner, when selecting a soundproofing material according to the noise characteristics of the compressor, the type of soundproofing material can be reliably distinguished by visual inspection.

[0010] In the outdoor unit of the air conditioner, the type of the soundproofing member may be a type in which the thickness of the soundproofing member or the material of the soundproofing member is changed.

[0011] With such an outdoor unit of an air conditioner, when selecting a soundproofing material according to the noise characteristics of the compressor, the type of soundproofing material can be more reliably distinguished by visual inspection.

[0012] In the outdoor unit of the air conditioner, the identification portion may be arranged inside the housing at a location where the soundproofing effect is not affected even if the identification portion is provided on the soundproofing member.

[0013] With such an outdoor unit of an air conditioner, when selecting a soundproofing material according to the noise characteristics of the compressor, the type of soundproofing material can be more reliably distinguished by visual inspection.

[0014] In the outdoor unit of the air conditioner described above, the housing is divided by a partition into a machine room in which the compressor is arranged and a heat exchange room in which a heat exchanger and a blower fan are arranged, the soundproofing member is arranged in the machine room, and the identification part may be arranged on the front of the housing or adjacent to the partition.

[0015] With such an outdoor unit of an air conditioner, when selecting a soundproofing material according to the noise characteristics of the compressor, the type of soundproofing material can be more reliably distinguished by visual inspection.

[0016] In the outdoor unit of the air conditioner, the soundproofing member has a first overlapping portion and a second overlapping portion where the soundproofing member is overlapped with each other, and the identification portion may be arranged in either the first overlapping portion or the second overlapping portion.

[0017] With such an outdoor unit of an air conditioner, when selecting a soundproofing material according to the noise characteristics of the compressor, the type of soundproofing material can be more reliably distinguished by visual inspection.

[0018] In the outdoor unit of the air conditioner, when the housing is installed, the identification portion may be provided on an upper portion of the soundproofing member.

[0019] With such an outdoor unit of an air conditioner, when selecting a soundproofing material according to the noise characteristics of the compressor, the type of soundproofing material can be more reliably distinguished by visual inspection.

[0020] In the outdoor unit of the air conditioner, the planar shape or position of the identification portion may be changed depending on the thickness or material of the soundproofing member.

[0021] With such an outdoor unit of an air conditioner, when selecting a soundproofing material according to the noise characteristics of the compressor, the type of soundproofing material can be more reliably distinguished by visual inspection.

[0022] In the outdoor unit of the air conditioner, the identification portion may be arranged at a position spaced a predetermined distance from an end of the soundproofing member.

[0023] With such an outdoor unit of an air conditioner, when selecting a soundproofing material according to the noise characteristics of the compressor, the type of soundproofing material can be more reliably distinguished by visual inspection.

[0024] In the outdoor unit of the air conditioner, the soundproof member may include a sound-insulating material and a sound-absorbing material, and the identification portion may be provided on the sound-absorbing material.

[0025] With such an outdoor unit of an air conditioner, when selecting a soundproofing material according to the noise characteristics of the compressor, the type of soundproofing material can be more reliably distinguished by visual inspection.

[0026] In the outdoor unit of the air conditioner described above, the housing is divided by a partition into a machine room in which the compressor is arranged and a heat exchange room in which a heat exchanger and a blower fan are arranged, the soundproofing member is arranged in the machine room, and the identification part may face the inside of the machine room or the front of the housing.

[0027] With such an outdoor unit of an air conditioner, when selecting a soundproofing material according to the noise characteristics of the compressor, the type of soundproofing material can be more reliably distinguished by visual inspection. [Effects of the Invention]

[0028] According to the present invention, an outdoor unit for an air conditioner is provided that allows the types of soundproofing materials to be visually distinguished with certainty when selecting soundproofing materials according to the noise characteristics of a compressor. [Brief explanation of the drawings]

[0029] [Figure 1] 1 is a schematic perspective view showing an overview of an air conditioner of the present embodiment. [Figure 2] FIG. 2 is a schematic perspective view showing the appearance of the outdoor unit of the air conditioner. [Figure 3] FIG. 1 is a schematic plan view showing the arrangement of components provided in an outdoor unit of an air conditioner. [Figure 4] FIG. 2 is a schematic perspective view showing the interior of a machine chamber of the outdoor unit. [Figure 5] FIG. 2 is a schematic perspective view showing the interior of a machine chamber of the outdoor unit. [Figure 6] 3A and 3B are a schematic plan view and a schematic cross-sectional view of a first soundproofing member. [Figure 7] FIG. 2 is a schematic plan view of the planar shape of an identification unit. [Figure 8] FIG. 10 is a schematic plan view showing a first modified example of the present embodiment. [Figure 9] FIG. 10 is a schematic perspective view showing a modified example 2 of the present embodiment. [Figure 10] FIG. 10 is a schematic cross-sectional view showing a modified example 3 of the present embodiment. [Figure 11] FIG. 10 is a schematic cross-sectional view showing a fourth modified example of the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0030] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. XYZ axis coordinates may be introduced in each drawing. Furthermore, the same components or components having the same functions may be assigned the same reference numerals, and after describing the components, the description may be omitted as appropriate. Furthermore, the numerical values ​​shown below are examples and are not limited to these examples.

[0031] (Air conditioner) 1 is a schematic perspective view showing an overview of an air conditioner of the present embodiment. The drawing in this embodiment shows an example of an air conditioner, and the air conditioner is not limited to the one shown in the drawing.

[0032] As shown in Fig. 1, the air conditioner 1 includes an indoor unit 90 installed indoors and an outdoor unit 10 installed outdoors. The indoor unit 90 and the outdoor unit 10 are connected by refrigerant piping 91 and 92, and the outdoor unit 10 is provided with a connection valve 93 to which one end of the refrigerant piping 91 is connected and a connection valve 94 to which one end of the refrigerant piping 92 is connected. The other ends of the refrigerant piping 91 and the refrigerant piping 92 are connected to the indoor unit 90. The air conditioner 1 circulates refrigerant between the indoor unit 90 and the outdoor unit 10 via the refrigerant piping 91 and 92 described above, and performs cooling operation, heating operation, and dehumidifying operation in the room in which the indoor unit 90 is installed.

[0033] (Air conditioner outdoor unit) 2(a) and 2(b) are schematic perspective views showing the appearance of the outdoor unit of an air conditioner. FIG. 2(a) shows the outdoor unit 10 viewed obliquely from the front, and FIG. 2(b) shows the outdoor unit 10 viewed obliquely from the rear. FIG. 3 is a schematic plan view showing the arrangement (layout) of components provided in the outdoor unit of an air conditioner. FIG. 3 shows the top surface of the outdoor unit 10 with the top panel 101u of the outdoor unit removed.

[0034] 2(a) and 2(b), the Z-axis direction is the up-down direction of the outdoor unit 10, the X-axis direction is the left-right direction of the outdoor unit 10, and the Y-axis direction is the front-rear direction (depth direction) of the outdoor unit 10. In this embodiment, the side of the top plate 101u of the housing 101 is referred to as the top side or upper side, the side of the bottom plate 101d of the housing 101 is referred to as the bottom side or lower side, the side of the front portion 101af of the side panel 101a of the housing 101 is referred to as the front side or front, and the side of the left rear portion 101ab of the side panel 101a of the housing 101 or the side of the right rear portion 101bb of the side panel 101b of the housing 101 is referred to as the rear side or rear. When viewing the housing 101 from the front, the surface on the right side of the housing 101 that is connected to the front and rear sides is referred to as the right side surface of the housing 101, and the surface on the left side of the housing 101 that is connected to the front and rear sides is referred to as the left side surface of the housing 101.

[0035] The housing 101 has, for example, a rectangular parallelepiped shape with a length in the left-right direction longer than that in the front-to-rear direction. The housing 101 is formed, for example, from a steel plate and has a top plate 101u, a bottom plate 101d facing the top plate 101u in the Z-axis direction, and side plates provided between the top plate 101u and the bottom plate 101d. The side plates will be described with reference to FIG. 3.

[0036] As shown in FIG. 3, the side panels include a side panel 101a and a side panel 101b.

[0037] The side panel 101a has a front surface 101af, a left surface 101al, a right surface 101ar, and a left rear surface 101ab. When the housing 101 is viewed from above, the side panel 101a has a structure in which it is bent in an L-shape at three points. For example, the front surface 101af and the left surface 101al of the side panel 101a form a corner on the left front side of the housing 101. The front surface 101af and the right surface 101ar of the side panel 101a form a corner on the right front side of the housing 101. The left surface 101al and the left rear surface 101ab of the side panel 101a form a corner on the left rear side of the housing 101.

[0038] A front surface portion 101af of the side panel 101a is aligned with a blower 190 (described later) in the Y-axis direction and forms the front surface of the housing 101. A left surface portion 101al of the side panel 101a is connected to the front surface portion 101af and forms the left side surface of the housing 101. The length of the front surface portion 101af in the X-axis direction is longer than the length of the left surface portion 101al in the Y-axis direction. A right surface portion 101ar of the side panel 101a is connected to the front surface portion 101af and forms part of the right side surface of the housing 101. The length of the front surface portion 101af in the X-axis direction is longer than the length of the right surface portion 101ar in the Y-axis direction. A left rear surface portion 101ab of the side panel 101a is connected to the left surface portion 101al and forms part of the rear surface of the housing 101. The length of the left surface portion 101al in the Y-axis direction is longer than the length of the left rear surface portion 101ab in the X-axis direction.

[0039] The side panel 101b has a right side surface portion 101br and a right rear surface portion 101bb. When the housing 101 is viewed from above, the side panel 101b has an L-shaped curved structure. For example, the right side surface portion 101br and the right rear surface portion 101bb of the side panel 101b form a corner of the right rear surface of the housing 101. The right side surface portion 101br of the side panel 101b is continuous with the right rear surface portion 101bb and forms part of the left side surface of the housing 101. The length of the right side surface portion 101br in the Y-axis direction is longer than the length of the right rear surface portion 101bb in the X-axis direction.

[0040] The front surface 101af of the side panel 101a faces the left rear surface 101ab of the side panel 101a and the right rear surface 101bb of the side panel 101b in the Y-axis direction. The left side surface 101al of the side panel 101a faces the right side surface 101ar of the side panel 101a and the right side surface 101br of the side panel 101b in the X-axis direction.

[0041] The front surface 101af of the side panel 101a has an air outlet 102, which serves as an air outlet for the outdoor unit 10 and is a circular opening that matches the outline of the propeller of the blower 190, and a bell mouth 101fm that extends from the air outlet 102 toward the inside of the housing 101 and is formed in a trumpet shape. The air outlet 102 is covered by a mesh-like fan guard 101g that is provided in front of the side panel 101a. The fan guard 101g is arranged along the front surface 101af.

[0042] On the rear side of the housing 101, the area between the left rear portion 101ab of the side panel 101a and the right rear portion 101bb of the side panel 101b serves as an air inlet 103b for the outdoor unit 10. As shown in FIG. 2(b), the outdoor heat exchanger 160 is exposed at the air inlet 103b of the housing 101. A protective mesh 101z is provided behind the outdoor heat exchanger 160 to protect the outdoor heat exchanger 160 from direct impact. Furthermore, on the left side of the housing 101, part of the left side portion 101al of the side panel 101a serves as an air inlet 103l for the outdoor unit 10.

[0043] As shown in FIG. 3, the interior of the housing 101 of the outdoor unit 10 is divided by a partition plate 20 into a heat exchange chamber 10H on the left side and a machine chamber 10M on the right side.

[0044] The partition plate 20 has a first portion 21, a second portion 22, and a third portion 23, and is fixed to the bottom plate 101d. A bent portion 25 is provided between the first portion 21 and the second portion 22 of the partition plate 20 so that the first portion 21 and the second portion 22 intersect. The third portion 23 of the partition plate 20 is provided so that the front end of the first portion 21 on the front side of the housing 101 is bent at a substantially right angle toward the machine chamber 10M. The bent portion of the partition plate 20 between the first portion 21 and the third portion 23 is defined as a bent portion 26. The first portion 21 is disposed along the front-rear direction. The second portion 22 is disposed along a direction intersecting the front-rear direction and is inclined toward the machine chamber 10M. The third portion 23 is disposed so as to intersect with the left-right direction. The angle formed by the first portion 21 and the second portion 22 is an obtuse angle. The second portion 22 is disposed closer to the outdoor heat exchanger 160 than the first portion 21. The width of the first portion 21 (the length of the first portion 21 in a direction substantially parallel to the XY-axis plane) is longer than the width of the second portion 22 (the length of the second portion 22 in a direction substantially parallel to the XY-axis plane) and the width of the third portion 23 (the length of the third portion 23 in a direction substantially parallel to the XY-axis plane). The width of the second portion 22 is longer than the width of the third portion 23.

[0045] The heat exchange chamber 10H is surrounded by the front surface 101af, left surface 101al, left rear surface 101ab of the side panel 101a, the partition plate 20, and the top plate 101u and bottom plate 101d shown in Figures 2(a) and 2(b). The machine chamber 10M is surrounded by the front surface 101af, right surface 101ar of the side panel 101a, the side panel 101b, the partition plate 20, and the top plate 101u and bottom plate 101d. The interior of the heat exchange chamber 10H is connected to the outside of the housing 101 by the air outlet 102, the air inlet 103b, and the air inlet 103l.

[0046] In the heat exchange chamber 10H, for example, an outdoor heat exchanger 160 and a blower 190 are disposed. The outdoor heat exchanger 160 is formed in an L-shape when viewed from above the housing 101. For example, the outdoor heat exchanger 160 has a first heat exchange portion 160a extending in the left-right direction, a second heat exchange portion 160b extending in the front-rear direction, and a curved third heat exchange portion 160c connecting the first heat exchange portion 160a and the second heat exchange portion 160b.

[0047] The blower 190 is disposed so as to face the first heat exchange section 160a of the outdoor heat exchanger 160 in the front-to-rear direction and so as to be close to the air outlet 102. As the blower 190 rotates, outside air flows into the heat exchange chamber 10H from the air inlets 103b and 103l, and the outside air passes through the outdoor heat exchanger 160, exchanging heat between the outside air and the refrigerant flowing through the outdoor heat exchanger 160. The outside air that has passed through the outdoor heat exchanger 160 is discharged from the heat exchange chamber 10H via the air outlet 102 as the blower 190 rotates.

[0048] A compressor 110 is disposed in the machine room 10M. In addition, an accumulator 170, a four-way valve 120, an expansion valve 150, etc. are disposed in the machine room. For example, the accumulator 170 is disposed adjacent to the compressor 110. The compressor 110, the accumulator 170, and the expansion valve 150 are fixed to the bottom plate 101d. In addition, the outdoor unit 10 is disposed with piping that connects the various components and constitutes the refrigerant circuit of the air conditioner, a control board that controls the various components, an electrical component box, etc. (not shown).

[0049] (soundproofing materials) A soundproofing member 30 that reduces noise emitted from the compressor 110 due to the operation of the compressor 110 is disposed inside the housing 101. By disposing the soundproofing member 30 inside the housing 101, the noise emitted from the compressor 110 is absorbed or blocked by the soundproofing member 30, thereby suppressing the noise from leaking outside the housing 101. The soundproofing member 30 is disposed in the machine room 10M. The soundproofing member 30 has a sheet-like first soundproofing member 31, a sheet-like second soundproofing member 32, and a sheet-like third soundproofing member 31.

[0050] For example, the first soundproofing member 31 is disposed along the third portion 23 of the partition plate 20, the front surface 101af and right surface 101ar of the side panel 101a, and the right surface 101br and right rear surface 101bb of the side panel 101b. The first soundproofing member 31 is bent at an obtuse angle between the third portion 23 of the partition plate 20 and the front surface 101af so as to fit inside the third portion 23 of the partition plate 20, bent at a substantially right angle between the front surface 101af and the right surface 101ar, and bent at a substantially right angle between the right surface 101br and the right rear surface 101bb. The second soundproofing member 32 is disposed along the partition plate 20. The second soundproofing member 32 is bent at an obtuse angle between the first portion 21 and the second portion 22 of the partition plate 20. The first soundproofing member 31 and the second soundproofing member 32 are arranged so that no gap is formed between the first soundproofing member 31 and the second soundproofing member 32 in the third portion 23 of the partition plate 20. The third soundproofing member 33 is arranged to surround the compressor 110 and the accumulator 170.

[0051] The soundproofing member 30 is provided with an identification portion that allows identification of the type of soundproofing member. The type of soundproofing member refers to, for example, soundproofing members that are the same in size and shape or slightly different in size and shape but have different thicknesses or materials. For example, the first soundproofing member 31 is provided with a first identification portion 310, the second soundproofing member 32 is provided with a second identification portion 320, and the third soundproofing member 33 is provided with a third identification portion 330. The first identification portion 310 is disposed adjacent to the front surface of the housing 101 (the side of the right side surface portion 101ar of the side panel 101a). The second identification portion 320 is disposed adjacent to the partition plate 20. The third identification portion 330 is disposed adjacent to the front surface of the housing 101. Here, the first identification portion 310 is disposed in a position facing the front surface of the housing 101. The second identification portion 320 is disposed in a position close to and facing the partition plate 20. For example, the first distinguishable portion 310 is provided at a position close to the air outlet 102 on the first soundproofing member 31. The second distinguishable portion 320 is provided at a position close to the front surface 101af on the second soundproofing member 32. The third distinguishable portion 330 is provided at a position facing the front surface of the housing 101 via the first soundproofing member 31. For example, the third distinguishable portion 330 faces the first soundproofing member 31 provided on the front surface of the housing 101, and is provided at a position close to the first soundproofing member 31 provided on the front surface of the housing 101.

[0052] 4 and 5 are schematic perspective views showing the interior of the machine room of the outdoor unit. Figures 4 and 5 show the machine room 10M of the outdoor unit 10 as viewed obliquely from the front. In Figure 4, the top panel 101u, side panels 101a and 101b, and fan guard 101g have been removed from the outdoor unit 10. In Figure 5, the first soundproofing member 31 has also been removed from the state shown in Figure 4.

[0053] When the housing 101 is placed on an installation surface (for example, the ground, a floor, etc.), with the installation surface of the housing 101 facing downward, the first distinguishable portion 310 is provided on the top of the first soundproofing member 31 (FIG. 4). The second distinguishable portion 320 is provided on the top of the second soundproofing member 32 (FIG. 5). The third distinguishable portion 330 is provided on the top of the third soundproofing member 33 (FIG. 5).

[0054] The structure of the soundproofing member of this embodiment will be described in more detail using the first soundproofing member 31 as an example. Fig. 6(a) shows a schematic plan view of the first soundproofing member, and Fig. 6(b) shows a cross section taken along line A1-A2 in Fig. 6(a). The cross-sectional structure shown in Fig. 6(b) is the same for the second soundproofing member 32 and the third soundproofing member 33.

[0055] For example, the first soundproofing member 31 shown in Fig. 6(a) is formed of a flexible sheet. The first soundproofing member 31 can be bent at bending portion A to fit inside the third portion 23 of the partition plate 20 (Fig. 3), at bending portion B to bend between the front portion 101af and the right side portion 101ar of the side panel 101a (Fig. 3), and at bending portion C to bend between the right side portion 101br and the right rear portion 101bb of the side panel 101b (Fig. 3). The first soundproofing member 31 also has slits 318 to avoid components (e.g., piping connected to the connection valve 93 and the connection valve 94 shown in Fig. 1) that are placed in the machine room 10M.

[0056] As shown in FIG. 6(b), the first soundproofing member 31 has a sound-insulating material 311 and a sound-absorbing material 312. The sound-insulating material 311 insulates (reflects) low-frequency components of noise (for example, less than 1 kHz). The sound-absorbing material 312 absorbs high-frequency components of noise (for example, 1 kHz or higher). In the first soundproofing member 31, the sound-insulating material 311 is sandwiched between sound-absorbing materials 312. These three pieces of soundproofing material are bonded together. With this structure, high-frequency components of noise emitted from the compressor 110 are absorbed by the sound-absorbing material 312, and low-frequency components of noise that pass through the sound-absorbing material 312 without being absorbed by the sound-absorbing material 312 are insulated by the sound-insulating material 311, thereby effectively preventing noise from leaking from the machine room 10M to the outside of the housing 101.

[0057] The material used for sound insulation 311 is a material that is denser and harder than sound absorption materials, such as polyvinyl chloride (PVC) or rubber. The material used for sound absorption 312 is, for example, felt made of hardened fibers. The color of sound insulation 311 is blackish. The color of sound absorption 312 is grayish.

[0058] The first distinguishable portion 310 is formed by cutting out a portion of the first soundproofing member 31. For example, the first distinguishable portion 310 is not provided on the sound-insulating material 311 but on the sound-absorbing material 312. For example, a portion of each of the sound-absorbing materials 312 sandwiching the sound-insulating material 311 is cut out to form a hole 315 in the sound-absorbing material 312. The distinguishable portion of this embodiment is formed by the planar shape of this hole 315 and the color of the sound-insulating material 311 that can be seen at the back of the hole 315. Note that in FIG. 6( a ), an distinguishable portion with a circular planar shape is exemplified as the first distinguishable portion 310.

[0059] The first distinguishing portion 310 is disposed at a predetermined distance from the end of the first soundproofing member 31. For example, the first distinguishing portion 310 is disposed at a distance d1 or more from the upper end 31a of the first soundproofing member 31 and at a distance d2 or more from the side end 31b of the first soundproofing member 31. For example, d1 is set to 15 mm, and d2 is set to 15 mm. When the hole 315 is formed by punching, the inner diameter of the hole 315 is set so that the hole 315 is not filled with the fibers that form the sound-absorbing material 312 after punching and so that a decrease in soundproofing effect due to the removal of a portion of the first soundproofing member 31 in forming the hole 315 is minimized. For example, the inner diameter of the hole 315 is set to 20 mm or more.

[0060] When preparing multiple types of first soundproofing members 31 with different thicknesses or materials but the same size and shape, such as when the thickness of the soundproofing material 311 is changed in 1 mm increments or when PVC and rubber are used, the planar shape of the first distinguishable portion 310 or the position of the first distinguishable portion 310 can be changed depending on the thickness or material of the first soundproofing member, making it easier to distinguish between the multiple types of first soundproofing members 31. FIGS. 7(a) to 7(d) show schematic diagrams of the planar shapes of the distinguishable portion. For example, FIG. 7(a) illustrates a square as an example of the planar shape of the first distinguishable portion 310. FIG. 7(b) illustrates a triangle as an example of the planar shape of the first distinguishable portion 310. FIG. 7(c) illustrates a star as an example of the planar shape of the first distinguishable portion 310. FIG. 7(d) illustrates a diamond as an example of the planar shape of the first distinguishable portion 310.

[0061] By combining the planar shape and position of first distinguishable portion 310, the thickness or material of the first soundproofing member can be recognized by looking at first distinguishable portion 310.

[0062] (action) A model with different specifications may be selected for the compressor 110 to be installed in the outdoor unit 10 depending on the required air conditioning capacity. The noise generated by driving the compressor 110 may differ depending on the model of the compressor 110, and when a soundproofing material is arranged inside the housing 101 of the outdoor unit 10, an appropriate soundproofing material is selected from multiple types of soundproofing material according to the noise characteristics of the compressor 110.

[0063] When selecting soundproofing materials appropriate for the noise characteristics of the compressor 110, the size and shape of the soundproofing materials may remain the same, but the thickness or material of the soundproofing materials may be changed. For example, when different models of compressors or multiple types of compressors are installed in the same housing 101, soundproofing materials with thicknesses or materials appropriate for the noise characteristics of the compressors may be selected. In such cases, the thickness of the soundproofing materials may be changed by millimeters, making it difficult to distinguish visually, or even if the materials are different, the soundproofing materials may be similar in color, making it difficult to visually distinguish the difference in material. Furthermore, the planar shape of the soundproofing materials may be changed to avoid contact with the components depending on the layout of the components to be installed in the machine room 10M. The inability to distinguish such differences in soundproofing materials makes it difficult for an outdoor unit 10 assembly worker to determine whether the soundproofing materials to be installed in the machine room 10M are appropriate for the compressor 110 to be installed in the outdoor unit 10, for example.

[0064] According to this embodiment, when assembling the outdoor unit 10, a worker can easily determine whether the soundproofing material to be placed in the machine room 10M matches the noise characteristics of the compressor to be installed in the outdoor unit 10 by visually checking the identification portion provided on the soundproofing material.

[0065] Furthermore, the identification portion of the soundproofing member 30 is positioned inside the housing 101 at a location where the soundproofing effect is not affected even if the identification portion is provided on the soundproofing member 30, i.e., at a location where the impact (reduction in soundproofing effect) is minimal even if the soundproofing effect is reduced by providing the identification portion on the soundproofing member 30.

[0066] 6(b), for example, the first identification portion 310 is formed by cutting out a portion of the sound-absorbing material 312, and therefore the sound absorption effect of the first identification portion 310 in the first soundproofing member 31 is reduced for high-frequency components of noise. In such a case, if the identification portion is provided on the back side of the housing 101, because the outdoor unit 10 is typically installed with the back side of the housing 101 facing the wall of the air-conditioned space (room) in which the indoor unit 90 is installed, there is a possibility that high-frequency components of noise leaking from the identification portion through the back of the housing 101, via the wall of the air-conditioned space (room), will enter the air-conditioned space and cause discomfort to the occupants. Furthermore, if the identification unit is provided on the right side of the housing 101, the right side of the housing 101 is normally formed from a single piece of steel material (right side portion 101ar of side panel 101a and right side portion 101br of side panel 101b), and therefore the only thing blocking the high-frequency components of the noise leaking from the identification unit is the single piece of steel material on the right side, which could increase the volume of the high-frequency components of the noise leaking from the right side of the housing 101.For example, if there is a window of a neighboring house near the right side of the housing 101, the noise from the right side of the housing 101 could cause discomfort to the residents of the neighboring house.

[0067] In contrast, in this embodiment, the first identification part 310 and the third identification part 330 are arranged so as to face the front surface of the housing 101. By arranging the first identification part 310 and the third identification part 330 in this manner, noise generated by driving the fan 190 is also radiated toward the front surface of the housing 101, so that noise leaking from the first identification part 310 and the third identification part 330 is not noticeable, and therefore there is not much adverse effect even if high-frequency components of noise leak from the first identification part 310. Furthermore, the second identification part 320 is arranged so as to face the interior of the machine room 10M. By positioning the second identification part 320 in this manner, the high-frequency components of the noise leaking from the second identification part 320 are significantly attenuated by the partition plate 20, the heat exchange chamber 10H (the air therein), and the left side surface of the housing 101 (the left side surface part 101al of the side panel 101a), and the high-frequency components of the noise leaking from the second identification part 320 become at a volume that is not bothersome to people.

[0068] The first distinguishable portion 310 of the first soundproofing member 31 is provided on the top of the first soundproofing member 31 (FIG. 4). The second distinguishable portion 320 of the second soundproofing member 32 is provided on the top of the second soundproofing member 32 (FIG. 5). The third distinguishable portion 330 of the third soundproofing member 33 is provided on the top of the third soundproofing member 33 (FIG. 5).

[0069] Such an arrangement improves visibility when workers involved in the production of the outdoor unit 10 or workers performing maintenance work on the outdoor unit 10 recognize the identification part. For example, when the soundproofing material is temporarily removed from the machine room 10M during the production of the outdoor unit 10, the workers performing each work can easily visually check that the soundproofing material to be installed is correct by visually checking the identification part.

[0070] Furthermore, when assembling the soundproofing members, the up-down direction and front-back direction of the soundproofing members can be easily confirmed by visually checking the identifiers. For example, as shown in FIG. 4 , if the first soundproofing member 31 and the second soundproofing member 32 are arranged so that the first identifier 310 of the first soundproofing member 31 and the second identifier 320 of the second soundproofing member 32 are above the respective soundproofing members and face the front side of the housing 101, it can be easily confirmed that the first soundproofing member 31 and the second soundproofing member 32 have been arranged correctly with the up-down direction or the front-back direction correct. Furthermore, by arranging the identifiers as described above, a worker can easily recognize the identifiers from above the machine room 10M immediately before closing the machine room 10M with the side panel 101a or the side panel 101b, which more reliably allows the first soundproofing member 31 and the second soundproofing member 32 to be arranged correctly with the up-down direction or the front-back direction correct.

[0071] 6(b), in the identification part, only the sound absorbing material 312 is cut out, and the sound insulating material 311 remains inside the hole 315. For example, if an identification part is formed to represent differences in thickness or material of the sound insulating material 311 by leaving or not leaving the sound insulating material 315 inside the hole 315, the worker can not only visually recognize the identification part, but also easily recognize the identification part by touch (if the sound insulating material 315 remains, the worker's finger will touch the sound insulating material 315, and if the sound insulating material 315 does not remain, the worker's finger will touch nothing or will touch the wall of the housing on which the sound insulating material is installed, and the difference in touch will be apparent).

[0072] As shown in FIG. 6( a), the first distinguishing portion 310 is provided at a distance d1 or more from the upper end 31a of the first soundproofing member 31 and at a distance d2 or more from the side end 31b of the first soundproofing member 31. The sound-absorbing material 312 forming the soundproofing member 30 is not very strong because it is made of a solidified fiber material, as described above. Therefore, if the distinguishing portion is provided close to the end of the soundproofing member 30, the soundproofing member 30 may be torn between the distinguishing portion and the end of the soundproofing member 30 due to the process of providing the distinguishing portion (punching out the distinguishing portion with a cutting die) or due to deterioration over time after installation of the outdoor unit 10, which may result in the soundproofing member 30 being torn between the distinguishing portion and the end of the soundproofing member 30, resulting in the soundproofing member 30 and part of the soundproofing member 30, including the distinguishing portion, falling off. In this embodiment, the distinguishing portion is provided at a predetermined distance from the end of the soundproofing member 30, thereby preventing the soundproofing member 30 from falling off.

[0073] In addition to the first soundproofing member 31 and the second soundproofing member 32, a third soundproofing member 33 is arranged around the compressor 110. As a result, noise generated by the compressor 11 is reduced by the third soundproofing member 33 and is further reduced by the first soundproofing member 31 and the second soundproofing member 32, so that the noise generated by the compressor 11 is significantly reduced.

[0074] (Variation 1) Fig. 8 is a schematic plan view showing Modification 1 of this embodiment. Fig. 8 shows Modification 1 of this embodiment using the third soundproofing member 33 as an example. Note that providing the third soundproofing member 33 together with the first soundproofing member 31 and the second soundproofing member 32 can reduce noise more effectively.

[0075] For example, the third soundproofing member 33 has a first overlapping portion 331 and a second overlapping portion 332 that are overlapped with each other. In such a case, the third distinguishing portion 330 is disposed in either the first overlapping portion 331 or the second overlapping portion 332. For example, the third distinguishing portion 330 is provided in the first overlapping portion 331, which is disposed outside the second overlapping portion 332.

[0076] With this arrangement, the visibility of the third identification portion 330 is ensured as in the above embodiment, while the reduction in soundproofing effect caused by providing the third identification portion 330 at the first overlapping portion 331 is suppressed by the second overlapping portion 332. In other words, noise emitted from the compressor 110 is damped by the second overlapping portion 332 in front of the third identification portion 330.

[0077] (Variation 2) FIG. 9 is a schematic perspective view showing a second modification of the present embodiment.

[0078] For example, a fourth soundproofing member 34 that serves as a lid for the third soundproofing member 33 may be provided on the third soundproofing member 33. The fourth soundproofing member 34 is provided with a fourth identification portion 340. The fourth soundproofing member 34 is provided with a through-hole 341 for avoiding contact with a pipe connected to the compressor 110 and a through-hole 342 for avoiding contact with the accumulator 170.

[0079] Providing such a soundproofing member further reduces the noise emitted from the compressor 110. Furthermore, when an operator selects the fourth soundproofing member 34 in accordance with the noise characteristics of the compressor 110, the operator can easily determine by visual inspection whether the fourth soundproofing member 34 is appropriate for the model of the compressor 110 to be installed in the outdoor unit 10.

[0080] (Variation 3) 10(a) and 10(b) are schematic cross-sectional views showing Modification 3 of this embodiment. In Fig. 10(a) and 10(b), Modification 3 of this embodiment is shown using a first soundproofing member 31 and a second soundproofing member 32 as examples.

[0081] 10(a), for example, the first distinguishable portion 310 of the first soundproofing member 31 may be provided on only one side of the first soundproofing member 31 (the sound-absorbing material 312 arranged on the front side). With such an arrangement, any reduction in soundproofing effect due to the provision of the first distinguishable portion 310 on the first soundproofing member 31 is suppressed by the sound-absorbing material 312 on the opposite side from the through-hole 315. In other words, noise emitted from the compressor 110 is blocked by the sound-absorbing material 312 and the sound-insulating material 311 in front of the first distinguishable portion 330. Furthermore, if the first distinguishable portion 310 is provided on only one side of the first soundproofing member 31, it is easy to distinguish between the front and back of the first soundproofing member 31 (for example, the side with the through-hole 315 can be distinguished as the front (front) side).

[0082] 10(b), the second soundproofing member 32 has a sound-insulating material 321 and a sound-absorbing material 322, and has a structure in which the sound-insulating material 321 is sandwiched between the sound-absorbing materials 322. The second identification portion 320 of the second soundproofing member 32 may be provided on only one side of the second soundproofing member 32 (the sound-absorbing material 322 arranged on the machine room 10M side). With such an arrangement, the reduction in soundproofing effect caused by providing the second identification portion 320 on the second soundproofing member 32 is further suppressed by the sound-absorbing material 322 on the opposite side from the hole 325. In other words, noise emitted from the compressor 110 is attenuated by the sound-absorbing material 322 and the sound-insulating material 321 before the second identification portion 330. Furthermore, if the second identification portion 320 is provided on one side of the second soundproofing member 32, it is possible to distinguish between the front and back of the second soundproofing member 32 (for example, the side on which the through hole 325 is provided can be distinguished as the front (machine room 10M) side).

[0083] (Variation 4) 11(a) and (b) are schematic cross-sectional views showing Modification 4 of this embodiment. In Fig. 11(a) and (b), Modification 3 of this embodiment is shown using the first soundproofing member 31 and the second soundproofing member 32 as examples.

[0084] For example, as illustrated in FIG. 11(a), when the noise generated by the operation of the compressor 110 is small, the first soundproofing member 31 may be formed of one sound-insulating material 311 and one sound-absorbing material 312. The first distinguishable portion 310 of the first soundproofing member 31 is provided on only one side of the first soundproofing member 31 (the sound-absorbing material 312 arranged on the front side). In this way, by reducing the amount of sound-insulating material 311 or sound-absorbing material 312 depending on the level of noise generated by the operation of the compressor 110, the cost of the soundproofing member can be reduced without sacrificing soundproofing performance. Furthermore, by providing the first distinguishable portion 310 on one side of the first soundproofing member 31, it is possible to distinguish between the front and back of the first soundproofing member 31 (for example, the side with the through hole 315 can be distinguished as the front (front) side).

[0085] Similarly, as illustrated in FIG. 11(b), when the noise generated by the operation of the compressor 110 is small, the second soundproofing member 32 may be formed of one sound-insulating material 321 and one sound-absorbing material 322. The second distinguishable portion 320 of the second soundproofing member 32 is provided on only one side of the second soundproofing member 32 (the sound-absorbing material 322 arranged on the machine room 10M side). In this way, by reducing the amount of sound-insulating material 311 or sound-absorbing material 312 depending on the level of noise generated by the operation of the compressor 110, the cost of the soundproofing member can be reduced without sacrificing soundproofing performance. Furthermore, by providing the second distinguishable portion 320 on one side of the second soundproofing member 32, it is possible to distinguish between the front and back of the second soundproofing member 32 (for example, the side with the through-hole 325 can be distinguished as the front (machine room 10M) side).

[0086] Although the embodiments of the present invention have been described above, it is needless to say that the present invention is not limited to the above-described embodiments and various modifications can be made. Each embodiment is not limited to an independent form, and can be combined as far as technically possible. [Explanation of symbols]

[0087] 1...Air conditioner 10...Outdoor unit 10M…Machine room 10H…Heat exchange room 20...Partition board 21…Part 1 22…Second part 23...Third part 25, 26...Bent section 30...Soundproofing material 31...First soundproofing member 32...Second soundproofing member 33...Third soundproofing member 34...Fourth soundproofing member 31a...Top end 31b…Side end 90…Indoor unit 91, 92...Refrigerant piping 93...Connection valve 94...Connection valve 101...Case 101a...Side panel 101af...front part 101al…Left side part 101ar…Right side part 101ab…Left back part 101b...Side panel 101br…Right side part 101bb…Right back part 101f...Bellmouth 101g...Fan guard 101z…protective net 101d…Bottom plate 101u…top board 102…Air outlet 103b, 103l... Intake port 110...Compressor 120...Four-way valve 150...Expansion valve 160...Outdoor heat exchanger 160a...1st heat exchange section 160b…Second heat exchange section 160c…Third heat exchange section 170...Accumulator 190...blower 310...First identification unit 311, 321...Sound insulation material 312, 322...sound absorbing material 315, 325...hole 318...Slit 320...Second identification section 330...Third identification section 331...First overlapping section 332...Second overlapping section 340...Fourth Identification Section 341...Through hole 342...Through hole

Claims

1. An outdoor unit of an air conditioner having a housing and a compressor provided inside the housing, a soundproofing member for reducing noise emitted from the compressor is disposed inside the housing; The soundproofing member is provided with an identification portion that can identify the type of the soundproofing member, The identification portion is formed by cutting out a part of the soundproofing member. Air conditioner outdoor unit.

2. 2. An outdoor unit for an air conditioner according to claim 1, The type of the soundproofing member is a type in which the thickness or the material of the soundproofing member is changed. Air conditioner outdoor unit.

3. 3. An outdoor unit for an air conditioner according to claim 1 or 2, The identification portion is disposed inside the housing at a position where the provision of the identification portion on the soundproof member does not affect the soundproofing effect. Air conditioner outdoor unit.

4. 3. An outdoor unit for an air conditioner according to claim 1 or 2, The housing is divided by a partition plate into a machine chamber in which the compressor is disposed and a heat exchange chamber in which a heat exchanger and a blower fan are disposed, the soundproofing member is disposed in the machine room, The identification portion is disposed on the front surface of the housing or adjacent to the partition plate. Air conditioner outdoor unit.

5. 3. An outdoor unit for an air conditioner according to claim 1 or 2, the soundproofing member has a first overlapping portion and a second overlapping portion where the soundproofing member is overlapped with each other, The identification portion is disposed in either the first overlapping portion or the second overlapping portion. Air conditioner outdoor unit.

6. 3. An outdoor unit for an air conditioner according to claim 1 or 2, When the housing is installed, the identification part is provided on the upper part of the soundproofing member. Air conditioner outdoor unit.

7. 3. An outdoor unit for an air conditioner according to claim 1 or 2, The planar shape or the position of the identification portion can be changed depending on the thickness or the material of the soundproofing member. Air conditioner outdoor unit.

8. 3. An outdoor unit for an air conditioner according to claim 1 or 2, The identification portion is disposed at a predetermined distance from the end of the soundproofing member. Air conditioner outdoor unit.

9. 3. An outdoor unit for an air conditioner according to claim 1 or 2, The soundproofing member includes a sound-insulating material and a sound-absorbing material, The identification portion is provided on the sound-absorbing material. Air conditioner outdoor unit.

10. 3. An outdoor unit for an air conditioner according to claim 1 or 2, The housing is divided by a partition plate into a machine chamber in which the compressor is disposed and a heat exchange chamber in which a heat exchanger and a blower fan are disposed, the soundproofing member is disposed in the machine room, The identification unit faces the inside of the machine room or faces the front surface of the housing. Air conditioner outdoor unit.

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