WO2013046591A1

WO2013046591A1 - Outdoor unit

Info

Publication number: WO2013046591A1
Application number: PCT/JP2012/005912
Authority: WO
Inventors: 啓太郎星加; 瀬戸口　隆之; 宜伸津村; 晋一根來
Original assignee: ダイキン工業株式会社
Priority date: 2011-09-26
Filing date: 2012-09-14
Publication date: 2013-04-04
Also published as: JP2013068386A

Abstract

An outdoor unit (10) is provided with a compressor (22) which compresses a refrigerant within a refrigerant circuit, a sound-deadening material (3A) which includes a sound-absorbing material (41) having water-absorbing properties and which covers the side face of the compressor (22), and a bottom plate frame (16) on which the compressor (22) is installed. The bottom plate frame (16) has a sound-deadening material placement section (61) on which the sound-deadening material (3A) is placed and a water retaining recess (63) which is recessed downward on the inside of the sound-deadening material placement section (61).

Description

Outdoor unit

This invention relates to the outdoor unit provided with the soundproof material which covers the side surface of a compressor.

Conventionally, a refrigeration apparatus having a refrigerant circuit such as an air conditioner, a refrigerator, a refrigerator, a heat pump water heater and the like is known. The outdoor unit of this refrigeration apparatus includes a compressor, a cylindrical soundproof material that covers the compressor in order to reduce noise generated during operation of the compressor, and a casing that houses these. The sound insulating material has a structure in which a sound insulating material formed of a material having excellent sound insulating properties such as rubber and a sound absorbing material formed of a material having excellent sound absorbing properties are laminated (for example, Patent Document 1). reference).

As the material of the sound absorbing material, a material in which a continuous void is formed, such as felt, is used. When sound waves are incident on the sound absorbing material, the air present in the gaps vibrates. This vibration of air is converted into thermal energy by friction with the fiber. As a result, a sound absorption phenomenon occurs. Thus, the sound-absorbing material in which continuous voids are formed has high water absorption.

By the way, in the casing of the outdoor unit, for example, a heat exchanger, an accumulator, and the like are disposed, and condensed water generated on these surfaces may flow down along the surface and accumulate on the bottom plate of the casing. . When the water collected on the bottom plate comes into contact with the lower end of the sound absorbing material, it is sucked up by the sound absorbing material by a capillary phenomenon and held in the space of the sound absorbing material. In other words, the sound absorbing material has a water retention capacity. However, when water is held in the sound absorbing material in this way, the vibration of air as described above is hindered. As a result, the sound absorbing performance of the sound absorbing material is lowered.

JP 2009-8363 A

An object of the present invention is to prevent a decrease in sound absorption performance due to water absorption of a soundproofing material in an outdoor unit provided with a soundproofing material that covers the side surface of the compressor.

The outdoor unit of the present invention includes a compressor (22) that compresses the refrigerant in the refrigerant circuit, and a sound absorbing material (41) having water absorption, and a soundproof material (3A) that covers the side surface of the compressor (22), And a bottom plate (17a) on which the compressor (22) is installed. The bottom plate (17a) includes a soundproof material placement portion (61) on which the soundproof material (3A) is placed, and a water reservoir recess (63) that is recessed downward inside the soundproof material placement portion (61). ,have.

It is a piping system figure showing the composition of the air harmony device provided with the outdoor unit concerning a 1st embodiment of the present invention. It is a perspective view which shows the compressor in the outdoor unit which concerns on 1st Embodiment, and the soundproof material which covers this. It is sectional drawing which shows a part of outdoor unit which concerns on 1st Embodiment, and has shown the baseplate frame, the compressor installed in this, and the soundproof material. It is a top view which shows the said baseplate frame in the outdoor unit which concerns on 1st Embodiment. (A) is a cross-sectional view taken along the line VA-VA of FIG. 4, and (B) is a cross-sectional view taken along the line VB-VB. It is sectional drawing which shows the modification of the mounting state of the said soundproof material mounted on the said baseplate frame. (A) is a plan view showing a bottom plate frame in an outdoor unit according to a second embodiment of the present invention, (B) is a sectional view taken along the line VIIB-VIIB in (A), and (C) is the above-mentioned It is sectional drawing which shows the modification of a baseplate frame.

(First embodiment)
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a piping system diagram illustrating a configuration of an air conditioner including an outdoor unit 10 according to the first embodiment. The air conditioner 1 shown in this figure includes an outdoor unit 10 installed outside and an indoor unit 12 installed indoors. In the air conditioner 1, the refrigerant circulates between the outdoor unit 10 and the indoor unit 12, and a cooling operation, a heating operation, and the like are performed.

The outdoor unit 10 includes a compressor 22, an accumulator 24, a four-way switching valve 26, an outdoor heat exchanger 28, an expansion valve 30, and a casing 11 in which these are accommodated. On the other hand, the indoor unit 12 includes an indoor heat exchanger 32 and a casing 13 in which the indoor heat exchanger 32 is accommodated.

The compressor 22, the accumulator 24, the four-way switching valve 26, the outdoor heat exchanger 28, the expansion valve 30, the indoor heat exchanger 32, and the pipes connecting them constitute a refrigerant circuit 20 for executing the refrigeration cycle. Yes. In the refrigerant circuit 20, the refrigerant circulates.

More specifically, the compressor 22 includes a refrigerant suction port and a discharge port. The discharge port is connected to the first port 27a of the four-way switching valve 26 via the discharge pipe 2a, and the suction port is connected to the third port 27c of the four-way switching valve 26 via the suction pipe 2b. The compressor 22 sucks the refrigerant through the suction pipe 2b. The refrigerant compressed in the compressor 22 is discharged to the discharge pipe 2a. As this compressor 22, for example, a hermetic high-pressure dome-type scroll compressor, a swing compressor, or the like can be used, but is not limited thereto.

The accumulator 24 is provided in the middle of the suction pipe 2b, and separates the liquid component from the refrigerant sucked into the compressor 22. The accumulator 24 is integrally assembled to the compressor 22 by being fixed to an attachment portion formed on the compressor 22 (see FIG. 2). The compressor 22 is provided with a soundproofing member 3 as a soundproofing measure. The soundproof member 3 will be described in detail later.

The outdoor heat exchanger 28 includes two input / output ports. The input / output port on one side is connected to the second port 27b of the four-way switching valve 26 via the gas pipe 2c. The other input / output port is connected to the expansion valve 30 via the liquid pipe 2d. The outdoor unit 10 includes an outdoor fan 29 that sends air to the outdoor heat exchanger 28. In the outdoor heat exchanger 28, heat exchange is performed between the refrigerant introduced from the input / output port and the outdoor air sent by the outdoor fan 29. Similar to the outdoor heat exchanger 28, the indoor heat exchanger 32 includes two input / output ports. One input / output port is connected to the fourth port 27d of the four-way switching valve 26 via the gas pipe 2e. The other input / output port is connected to the expansion valve 30 via the liquid pipe 2f. The indoor unit 12 includes an indoor fan 33 that sends air to the indoor heat exchanger 32. In the indoor heat exchanger 32, heat exchange is performed between the refrigerant introduced from the input / output port and the indoor air sent by the indoor fan 33. As the outdoor heat exchanger 28 and the indoor heat exchanger 32, for example, a cross fin type fin-and-tube heat exchanger can be used, but is not limited thereto.

The expansion valve 30 expands the refrigerant that flows in from the outdoor heat exchanger 28 through the liquid pipe 2d or the refrigerant that flows in from the indoor heat exchanger 32 through the liquid pipe 2f. Thereby, the refrigerant is depressurized to a predetermined pressure. As the expansion valve 30, for example, an electronic expansion valve with a variable opening is applied.

The four-way switching valve 26 has a first state (state indicated by a solid line in FIG. 1) in which the first port 27a and the second port 27b communicate with each other and the third port 27c and the fourth port 27d communicate with each other, and the first port 27a. The second port 27d communicates with the second port 27b and the third port 27c communicates with each other (a state indicated by a broken line in FIG. 1). The four-way switching valve 26 is controlled to be switched by a control device (not shown).

In the air conditioner 1 including the refrigerant circuit 20 as described above, during the cooling operation, the four-way switching valve 26 is controlled to the first state, whereby the refrigerant circulates in the direction indicated by the solid arrow in FIG. As a result, the outdoor heat exchanger 28 functions as a condenser (heat radiator), and the indoor heat exchanger 32 functions as an evaporator. That is, in the cooling operation, the high-temperature and high-pressure refrigerant discharged from the compressor 22 is condensed by releasing heat to the outdoor air in the outdoor heat exchanger 28. The condensed refrigerant is depressurized by the expansion valve 30, and then absorbs heat from the indoor air in the indoor heat exchanger 32 and evaporates. Then, the evaporated refrigerant is sucked into the compressor 22 through the accumulator 24.

On the other hand, during the heating operation, the four-way switching valve 26 is controlled to the second state, whereby the refrigerant circulates in the direction indicated by the broken line arrow in FIG. As a result, the outdoor heat exchanger 28 functions as an evaporator, and the indoor heat exchanger 32 functions as a condenser (heat radiator). That is, in the heating operation, the high-temperature and high-pressure refrigerant discharged from the compressor 22 is condensed by releasing heat to the indoor air in the indoor heat exchanger 32. The condensed refrigerant is decompressed by the expansion valve 30 and then evaporates by absorbing heat from the outdoor air in the outdoor heat exchanger 28. Then, the evaporated refrigerant is sucked into the compressor 22 through the accumulator 24.

Next, the compressor 22, the accumulator 24, and the soundproof member 3 attached to these will be described. As shown in FIG. 3, the compressor 22 includes a substantially columnar vertically long main body portion 22 a and a plurality of leg portions 22 b connected to the lower end portion thereof. The compressor 22 is accommodated in the outdoor unit 10 in a state of being disposed on the bottom plate frame 16.

The accumulator 24 has a substantially cylindrical shape that is smaller in diameter than the main body 22a of the compressor 22 and shorter in the vertical direction, and is fixed to the side surface of the main body 22a. The soundproof member 3 is attached to the compressor 22 and the accumulator 24.

As shown in FIGS. 2 and 3, the soundproofing member 3 covers the first soundproofing material 3 A that covers the side surfaces of the compressor 22 and the accumulator 24 that are integrally arranged, and the upper surfaces of the compressor 22 and the accumulator 24. 2nd soundproof material 3B is included.

The first soundproofing material 3A is for keeping the soundproofing material main body 40 having a rectangular sheet shape and the soundproofing material main body 40 wound around the compressor 22 and the accumulator 24 (hereinafter abbreviated as the compressor 22 etc.) in the wound state. The fixing tool 45 is included.

The length of the winding direction is set so that the soundproofing material main body 40 can be wound around the compressor 22 or the like with one end overlapped with the other end. As shown in FIG. 3, the soundproof material body 40 has a length in the vertical direction that can cover the entire side surface of the compressor 22 in the vertical direction. The lower end of the soundproof material body 40 is in contact with the upper surface of the bottom plate 17 a of the bottom plate frame 16. The soundproof material main body 40 covers an area from the leg portion 22b of the compressor 22 to substantially the upper end of the main body portion 22a.

The soundproof material main body 40 has a structure in which a sound absorbing material 41 and a sound insulating material 42 are laminated in the thickness direction and bonded together. As shown in FIGS. 2 and 3, in a state where the soundproof material main body 40 is wound around the compressor 22 or the like, the sound absorbing material 41 is in contact with the side surface of the compressor 22 or the like, and the lower end portion of the soundproof material main body 40 is In contact with the upper surface of the bottom plate 17a. And in this winding state, the soundproofing material main body 40 is attached to the compressor 22 etc. by the both ends of the soundproofing material main body 40 being fastened by the fixture 45.

As the fixing tool 45, various fixing means capable of fixing both ends of the soundproof material main body 40 can be used, and the fixing tool 45 is not particularly limited. For example, the fixture 45 in the present embodiment shown in FIG. 2 includes a disk-shaped locking button 45a fixed to one end portion in the circumferential direction (winding direction) of the soundproof material body 40, and a locking provided at the other end portion. A string 45b. The both ends of the soundproof material main body 40 are mutually locked by winding the locking string 45b around the locking button 45a. In the present embodiment, the locking button 45 a and the locking string 45 b are provided on the outer surface of the sound insulating material 42.

The second soundproofing material 3B is a sheet-like member and has a shape capable of covering the upper surface of the compressor 22 and the like. In the present embodiment, the second soundproofing material 3 B has a shape (for example, an egg shape) that can cover the upper surface of the compressor 22 and the upper surface of the accumulator 24. As shown in FIG. 3, the second sound insulating material 3 B has a structure in which a sound absorbing material 47 and a sound insulating material 48 are laminated in the thickness direction, and these are bonded to each other.

The second soundproofing material 3B in this embodiment is covered on the upper surface of the compressor 22 and the like so that the sound absorbing material 47 is positioned on the lower side (compressor 22 side). As shown in FIGS. 2 and 3, the second soundproofing material 3 B includes a through-hole penetrating in the thickness direction and a slit-shaped cut portion extending from the through-hole to the periphery of the second soundproofing material 3 B. In the present embodiment, since the pair of pipes (the discharge pipe 2a and the suction pipe 2b) extend upward from the compressor 22 and the like, the second sound insulating material 3B includes the pair of through

holes

50 and 52 and the pair of cut portions. 51, 53. The discharge pipe 2a and the suction pipe 2b are inserted into the through

holes

50 and 52 through the

notches

51 and 53, and the second soundproof material 3B is covered on the upper surface of the compressor 22 and the like in this state.

By attaching the soundproofing member 3 as described above to the compressor 22 or the like, the side surfaces of the compressor 22 or the like are covered with the first soundproofing material 3A including the sound absorbing material 41 and the sound insulating material 42, and the upper surface of the compressor 22 or the like. Is covered with the second soundproofing material 3B including the sound absorbing material 47 and the sound insulating material 48. The effect of reducing noise generated in the compressor 22 is obtained by the sound insulation and sound absorption functions of the

soundproofing materials

3A and 3B.

The

sound absorbing materials

41 and 47 include a fibrous member having a large number of continuous voids inside. In this embodiment, a sheet-like sound absorbing material made of glass fiber in which glass fibers of about 0.4 to 3.5 μm are intertwined is used, but the present invention is not limited to this. The sound

insulating materials

42 and 48 include a member having sound insulating properties. In the present embodiment, the

sound insulating materials

42 and 48 are formed of a waterproof material in addition to the sound insulating properties, but are not limited thereto. As a specific example, in the present embodiment, a sheet-like sound insulating material made of rubber is used.

Next, the structure of the bottom plate frame 16 in the outdoor unit 10 according to the first embodiment will be described in detail. FIG. 4 is a plan view showing the bottom plate frame 16 in the outdoor unit 10 according to the first embodiment. 5A is a cross-sectional view taken along the line VA-VA of FIG. 4, and FIG. 5B is a cross-sectional view taken along the line VB-VB.

3 and 4, the bottom plate frame 16 has a bottom plate 17a and a side plate 17b extending upward from the peripheral edge thereof. In the present embodiment, the bottom plate 17a has a rectangular shape in plan view, but is not limited thereto. The

bottom plate legs

81 and 82 are attached to the lower surface of the bottom plate 17a on both sides in the longitudinal direction of the bottom plate 17a, but these can be omitted.

As shown in FIGS. 3 to 5A and 5B, the bottom plate 17a includes a soundproof material placement portion 61 on which the soundproof material 3A is placed, and an inner side (horizontal inner side) of the soundproof material placement portion 61. And a water reservoir recess 63 (first water reservoir recess 63). In the present embodiment, the bottom plate 17a further connects the second water reservoir recess 74, the first water reservoir recess 63, and the second water reservoir recess 74 provided along the lower end of the heat exchanger (not shown). Although it has the connection recessed part 83 and the several leg part arrangement | positioning recessed part 84, the recessed

parts

74, 83, 84 are omissible.

The first water reservoir recess 63, the second water reservoir recess 74, the connection recess 83, and the leg portion disposition recess 84 are recessed below the surrounding area. Specifically, for example, the first water reservoir recess 63 is recessed below the soundproof material placement portion 61 located on the outer side (horizontal direction outer side) thereof. In the present embodiment, these

recesses

63, 74, 83, and 84 form a single continuous recess, but the present invention is not limited to this. Each recess may be formed independently of other recesses. The bottom plate frame 16 including the side plate 17b, the soundproof material placement portion 61, and the

concave portions

63, 74, 83, and 84 is integrally formed by a molding method such as press working or injection molding. The bottom plate frame 16 is formed using a material such as a metal or a resin having water shielding properties.

The first water reservoir recess 63 is provided below the compressor 22 and the accumulator 24 in order to store condensed water generated on the surface of the accumulator 24 and the like. The second water reservoir recess 74 is provided below the heat exchanger to accommodate condensed water generated on the surface of the heat exchanger, and is a plan view that matches the shape of the lower end of the heat exchanger. It has an L shape.

The connecting recess 83 is provided with a drain port 76 that penetrates the bottom plate 17a in the vertical direction. The water stored in the first water reservoir recess 63 and the second water reservoir recess 74 is discharged to the outside of the outdoor unit 10 through the drain port 76. The position where the drain port 76 is provided is not limited to the connecting recess 83, and may be another position where at least water stored in the first water reservoir recess 63 can be discharged to the outside.

In the present embodiment, the leg portion 22b of the compressor 22 is disposed in the leg portion concave portion 84 via the vibration isolating member 85. The anti-vibration member 85 is formed using a material having anti-vibration properties such as synthetic rubber. Further, when the leg portion 22b is raised by the vibration isolation member 85, the water accumulated in the first water reservoir recess 63 is prevented from coming into contact with the leg portion 22b. Thereby, corrosion of the leg part 22b can be suppressed. Note that the vibration isolating member 85 can be omitted. Moreover, in this embodiment, although the leg part arrangement | positioning recessed part 84 employ | adopted the structure which protruded from the 1st water reservoir recessed part 63 to the horizontal direction outer side, it is not limited to this. It is also possible to omit the leg arrangement recess 84, in which case the leg 22 b is arranged in the first water reservoir recess 63.

The soundproof material placement portion 61 is an annular region located around the first water reservoir recess 63. As shown in FIGS. 5A and 5B, the soundproof material placement portion 61 has an upper surface 64. The soundproof material 3 A is placed on the upper surface 64 of the soundproof material placement portion 61. In the form shown in FIG. 3, the entire lower end portion (the entire lower end surface) of the sound insulating material 42 and the entire lower end portion (the entire lower end surface) of the sound absorbing material 41 are in contact with the upper surface 64 of the soundproof material placing portion 61. However, it is not limited to this.

The first water reservoir recess 63 is an area located inside the annular soundproof material placement portion 61. As shown in FIGS. 4 and 5A and 5B, the first water reservoir recess 63 has an upper surface 66. The upper surface 66 of the first water reservoir recess 63 is provided at a position lower than the upper surface 64 of the soundproof material placement portion 61. Thereby, for example, condensed water (condensation water) generated on the surfaces of the suction pipe 2b, the accumulator 24, and the like (not shown) of the compressor 22 enters the first water reservoir recess 63 at a position lower than the soundproof material placement portion 61. Since it is accommodated, contact with the soundproofing material 3A placed on the soundproofing material placement part 61 is suppressed.

FIG. 6 is a cross-sectional view showing a modified example of the mounting state of the soundproofing material 3A mounted on the bottom plate frame 16. As shown in FIG. 6, in this modification, the soundproofing material 3 A is soundproofed so that a part of the lower end portion (a part of the lower end surface) of the sound absorbing material 41 is located inside the soundproofing material placement portion 61. It is mounted on the material mounting portion 61. A part of the lower end portion of the sound absorbing material 41 (a part of the lower end surface) is located above the first water reservoir recess 63 and has a first water reservoir in a state where a gap is formed between the first water reservoir recess 63. Opposite the recess 63 in the vertical direction. Therefore, the soundproofing material 3 A has a non-contact area 41 a that is not in contact with the upper surface 64 of the soundproofing material placement portion 61.

Specifically, the entire lower end portion of the sound insulating material 42 is in contact with the upper surface 64 of the sound insulating material placing portion 61, while a part of the lower end portion of the sound absorbing material 41 is located inside the sound insulating material placing portion 61. positioned. The inner region (non-contact region 41 a) at the lower end portion of the sound absorbing material 41 is not in contact with the upper surface 64 of the soundproof material placement portion 61. In the present embodiment, an inclined inner surface of the first water reservoir recess 63 exists below the non-contact region 41a in the vertical direction. The inner side surface is inclined so as to be located inside as it goes downward. Therefore, the water dropped from the non-contact area 41 a flows through the inner surface of the first water reservoir recess 63.

In the modification shown in FIG. 6, the outer region at the lower end portion of the sound absorbing material 41 is in contact with the upper surface 64 of the soundproof material placing portion 61, and the inner region is not in contact with the upper surface 64 of the soundproof material placing portion 61. Although the case was illustrated, the lower end part of the sound-absorbing material 41 may not be in contact with the upper surface 64 of the sound-insulating material placing part 61.

(Second Embodiment)
FIG. 7A is a plan view showing the bottom plate frame 16 in the outdoor unit 10 according to the second embodiment of the present invention, and FIG. 7B is a cross-sectional view taken along the line VIIB-VIIB in FIG. 7A. FIG. 7C is a cross-sectional view showing a modified example of the bottom plate frame 16.

As shown in FIGS. 7A and 7B, the outdoor unit 10 according to the second embodiment is inclined such that the bottom of the first water reservoir recess 63 guides water accumulated in the first water reservoir recess 63 to the drain port 76. It has a structure. In the second embodiment, the upper surface 66 of the first water reservoir recess 63 is inclined so as to be positioned downward toward the drain port 76. Thereby, the water accumulated in the first water reservoir recess 63 smoothly flows in the direction of the arrow indicated by the two-dot chain line W in FIG.

FIG. 7C is a cross-sectional view showing a modified example of the bottom plate frame 16 in the second embodiment. In this modification, the bottom of the first water reservoir recess 63 has a step structure. In this modification, the upper surface 66 of the first water reservoir recess 63 includes a first upper surface 66a, a second upper surface 66b, and a third upper surface 66c that are arranged in a staircase pattern. The third upper surface 66 c closest to the drain port 76 is at substantially the same height as the drain port 76. The second upper surface 66b is higher than the third upper surface 66c, and the first upper surface 66a is higher than the second upper surface 66b.

In this modification, the step structure including the three

upper surfaces

66a, 66b, and 66c having different heights is illustrated, but the present invention is not limited to this. The step structure may be a form including a plurality of upper surfaces having different heights. Specifically, examples of the step structure include a form composed of two upper surfaces having different heights and a form composed of four or more upper surfaces having different heights.

As described above, in each embodiment, the bottom plate frame 16 includes the soundproofing material placing part 61 on which the soundproofing material 3A is placed and the water reservoir recessed part 63 that is recessed downward inside the soundproofing material placing part 61. Have. Therefore, for example, even when condensed water is generated on the surfaces of the suction pipe 2b and the accumulator 24 of the compressor 22 and the condensed water flows down onto the bottom plate frame 16 inside the soundproof material placement portion 61, this water Is accommodated in a water reservoir recess 63 located at a position lower than the soundproof material placement portion 61. Therefore, it is suppressed that this water contacts 3 A of soundproof materials mounted on the soundproof material mounting part 61. FIG. Thereby, it is suppressed that the sound absorption performance of the sound absorption material 41 falls.

In each embodiment, since the bottom plate frame 16 has the drain port 76 for draining the water accumulated in the water reservoir recess 63, the water accumulated in the water reservoir recess 63 is drained out of the water reservoir recess 63. Can do.

In the second embodiment, the bottom of the water reservoir recess 63 has an inclined structure or a step structure that guides the water stored in the water reservoir recess 63 to the drain port 76, so that the water stored in the water reservoir recess 63 Effectively led to 76.

In the modification of the first embodiment, the soundproofing material 3 A is soundproofed so that at least a part of the lower end portion of the sound absorbing material 41 is located on the inner side of the soundproofing material placement portion 61 and above the water reservoir recess 63. It is mounted on the material mounting portion 61. Therefore, even if the sound absorbing material 41 absorbs water, this water is located on the inner side of the soundproofing material placing portion 61 and above the water retaining recess 63 and enters the water retaining recess 63. Easily falls. Thereby, water retention in the sound absorbing material 41 is suppressed.

Further, in the soundproofing material 3A in each embodiment, the sound absorbing material 41 is made of glass fiber. Such a sound absorbing material made of glass fiber exhibits a high sound absorbing effect because a large number of continuous ultrafine voids exist inside. On the other hand, the sound absorbing material made of glass fiber has a property that it is easy to suck up water accumulated in the bottom plate frame 16 due to capillary action. However, as described above, water absorption of the sound absorbing material 41 is suppressed in the configuration of each embodiment. Therefore, it is possible to prevent the sound absorbing performance of the sound absorbing material 41 from being deteriorated due to the sound absorbing material 41 absorbing water. As a result, the high sound absorption effect of the sound absorbing material 41 made of glass fiber is maintained.

In addition, in the soundproofing material 3A, the sound absorbing material 41 is prevented from absorbing water on the bottom plate frame 16 as described above. For this reason, even if the sound absorbing material 41 is disposed in contact with or close to the main body portion 22a of the compressor 22, the water absorbed by the sound absorbing material 41 touches the main body portion 22a of the compressor 22 for a long time. There is also an advantage that it is possible to prevent inconveniences such as corroding the wall surface.

In addition, the outdoor unit 10 mentioned above is an illustration of embodiment of the outdoor unit which concerns on this invention, Comprising: The specific structure of the outdoor unit 10 and the specific structure of the soundproof member 3 attached to the compressor 22 are as follows. Modifications can be made as appropriate without departing from the scope of the present invention. For example, the following configurations are also applicable.

In the above embodiment, since the accumulator 24 is fixed to the side surface of the compressor 22 (main body portion 22a), the first soundproof material 3A is integrally wound around the compressor 22 and the accumulator 24. However, when the compressor 22 and the accumulator 24 are separated from each other, the first soundproofing material 3 A is wound only around the compressor 22.

In the above embodiment, the sound absorbing material 41 of the soundproof material main body 40 is made of glass fiber, but may be a sound absorbing material made of a material other than glass fiber such as felt.

In the above-described embodiment, an example in which the present invention is applied to an air conditioner has been described. However, the present invention is also applicable to a refrigeration apparatus other than an air conditioner such as a refrigerator, a refrigerator, a heat pump water heater, or the like. .

The specific embodiments described above mainly include inventions having the following configurations.

(1) The outdoor unit includes a compressor (22) that compresses the refrigerant in the refrigerant circuit, and a sound absorbing material (41) having water absorption, and a soundproofing material (3A) that covers a side surface of the compressor (22). And a bottom plate (17a) on which the compressor (22) is installed. The bottom plate (17a) includes a soundproof material placement portion (61) on which the soundproof material (3A) is placed, and a water reservoir recess (63) that is recessed downward inside the soundproof material placement portion (61). ,have.

In this configuration, the bottom plate (17a) includes a soundproof material placement portion (61) on which the soundproof material (3A) is placed, and a water reservoir recess (63) that is recessed downward inside the soundproof material placement portion (61). And have. Therefore, for example, even when condensed water is generated on the surface of the suction pipe, the accumulator, etc. of the compressor (22), and this condensed water flows down on the bottom plate (17a) inside the soundproof material placement portion (61). This water is accommodated in the water reservoir recess (63) located at a position lower than the soundproof material placement part (61). Therefore, it is suppressed that this water contacts the soundproof material (3A) mounted on the soundproof material mounting part (61). Thereby, it is suppressed that the sound absorption performance of a sound-absorbing material (41) falls.

(2) In the outdoor unit, when the bottom plate (17a) has a drain port (76) for draining water accumulated in the water reservoir recess (63), the water reservoir recess (63) The water accumulated in the water can be drained out of the water reservoir recess (63).

(3) In the outdoor unit, the bottom of the water reservoir recess (63) has an inclined structure or a step structure that guides water accumulated in the water reservoir recess (63) to the drain port (76). preferable.

In this configuration, the bottom of the water reservoir recess (63) has an inclined structure or a step structure that guides the water stored in the water reservoir recess (63) to the drain port (76). The water collected in 63) is effectively guided to the drain port (76).

(4) In the outdoor unit, the soundproof material (3A) is configured such that at least a part of a lower end portion of the sound absorbing material (41) is located inside the soundproof material placing portion (61) and the water reservoir concave portion (63 ) Is preferably placed on the soundproof material placement portion (61).

In this configuration, even if the sound absorbing material (41) absorbs water, the water is located on the inner side of the soundproof material placement portion (61) and above the water reservoir recess (63). It easily falls from the material (41) to the water reservoir recess (63). Thereby, water retention in the sound absorbing material (41) is suppressed.

DESCRIPTION OF SYMBOLS 3 Sound insulation member 3A 1st sound insulation material 3B 2nd sound insulation material 16 Bottom plate frame

17a Bottom plate

17b Side plate 22 Compressor 22a Main body part 22b Leg part 40 Sound insulation material main body 41 Sound absorption material 42 Sound insulation material 61 Sound insulation material mounting part 63 1st water reservoir Concave portion 74 Second sump concave portion 76 Drain port

Claims

A compressor (22) for compressing the refrigerant in the refrigerant circuit;
A soundproof material (3A) including a sound absorbing material (41) having water absorbency and covering a side surface of the compressor (22);
A bottom plate (17a) on which the compressor (22) is installed,
The bottom plate (17a) includes a soundproof material placement portion (61) on which the soundproof material (3A) is placed, and a water reservoir recess (63) that is recessed downward inside the soundproof material placement portion (61). , Having an outdoor unit.
The outdoor unit according to claim 1, wherein the bottom plate (17a) has a drain port (76) for draining water accumulated in the water reservoir recess (63).
The outdoor unit according to claim 2, wherein the bottom of the water reservoir recess (63) has an inclined structure or a step structure that guides water accumulated in the water reservoir recess (63) to the drain port (76).
The soundproof material (3A) is positioned such that at least a part of the lower end portion of the sound absorbing material (41) is located inside the soundproof material placement portion (61) and above the water reservoir recess (63). The outdoor unit according to any one of claims 1 to 3, wherein the outdoor unit is placed on the soundproofing material placing part (61).