Outdoor unit of refrigeration cycle device and method for manufacturing outdoor unit of refrigeration cycle device

Abstract

Provided is an outdoor unit of a refrigeration cycle device, capable of reducing leakage of operation sound of a compressor.　The outdoor unit of the refrigeration cycle device according to the present disclosure comprises a cylindrical compressor that compresses a refrigerant, a first soundproofing material that is a sheet-like member and covers a side surface of the compressor, and a second soundproofing material that is a sheet-like member and covers the side surface of the compressor covered with the first soundproofing material, wherein the first soundproofing material has a first joining part that joins one end part and the other end part in a circumferential direction of the side surface of the compressor, the second soundproofing material has a second joining part that joins the one end part and the other end part in the circumferential direction of the side surface of the compressor, and the position of the first joining part is different from the position of the second joining part in the circumferential direction of the side surface of the compressor.

Description

Outdoor unit of refrigeration cycle device and method of manufacturing outdoor unit of refrigeration cycle device

[0001] The present disclosure relates to an outdoor unit of a refrigeration cycle device and a method for manufacturing an outdoor unit of a refrigeration cycle device.

[0002] Conventionally, as a measure against noise from a compressor in an outdoor unit of a refrigeration cycle apparatus, the compressor has been covered with a soundproofing material. Patent Document 1 discloses an outdoor unit of a refrigeration cycle apparatus (air conditioner) in which the soundproofing material is wrapped around the outer periphery of a cylindrical compressor so that one end of the soundproofing material overlaps the other end in the circumferential direction of the compressor.

[0003] JP 2017-180946 A

[0004] However, in the outdoor unit of the refrigeration cycle device disclosed in Patent Document 1, if a gap occurs where one end of the soundproofing material overlaps the other end, there is a problem in that the operating noise of the compressor leaks through the gap.

[0005] The present disclosure has been made to solve the above-mentioned problems, and aims to provide an outdoor unit for a refrigeration cycle device that reduces leakage of compressor operating noise compared to the outdoor unit of the refrigeration cycle device described in Patent Document 1, and a method for manufacturing an outdoor unit for a refrigeration cycle device.

[0006] The outdoor unit of the refrigeration cycle device of the present disclosure comprises a cylindrical compressor that compresses a refrigerant, a first soundproofing material that is a sheet-like member and covers the side of the compressor, and a second soundproofing material that is a sheet-like member and covers the side of the compressor that is covered by the first soundproofing material, wherein the first soundproofing material has a first joint where one end and the other end in the circumferential direction of the side of the compressor are joined, and the second soundproofing material has a second joint where one end and the other end in the circumferential direction of the side of the compressor are joined, and the positions of the first joint and the second joint are different in the circumferential direction of the side of the compressor.

[0007] In addition, the manufacturing method for the outdoor unit of the refrigeration cycle device disclosed herein includes a first step of attaching piping of the refrigeration cycle device to be connected to the suction pipe and discharge pipe of a cylindrical compressor that compresses a refrigerant, a second step of wrapping a sheet-like first sound-proofing material around the side of the compressor and forming a first joint where one end and the other end in the circumferential direction of the side of the compressor are joined, a third step of wrapping a sheet-like second sound-proofing material around the side of the compressor covered with the first sound-proofing material and forming a second joint where one end and the other end are joined in the circumferential direction of the side of the compressor at a position different from the first joint, and a fourth step of fixing the first sound-proofing material and the second sound-proofing material to the compressor.

[0008] The outdoor unit of a refrigeration cycle device and the manufacturing method of the outdoor unit of a refrigeration cycle device disclosed herein have the effect of reducing leakage of compressor operating noise compared to the outdoor unit of a refrigeration cycle device described in Patent Document 1.

[0009] 5 is a refrigerant circuit diagram showing an overview of a refrigeration cycle device according to an embodiment. FIG. 6 is a perspective view showing the appearance of an outdoor unit of a refrigeration cycle device according to an embodiment. FIG. 7 is a perspective view showing the internal structure of the outdoor unit of a refrigeration cycle device according to an embodiment. FIG. 8 is a perspective view of a covered compressor in the outdoor unit of a refrigeration cycle device according to an embodiment. FIG. 9 is an exploded perspective view of a covered compressor in the outdoor unit of a refrigeration cycle device according to an embodiment. FIG. 10 is a top view of a covered compressor in the outdoor unit of a refrigeration cycle device according to an embodiment. FIG. 11 is a cross-sectional view of the covered compressor in the outdoor unit of a refrigeration cycle device according to an embodiment, taken along line A-A in FIG. 5 . FIG. 12 is a development view of soundproofing material in the outdoor unit of a refrigeration cycle device according to an embodiment. FIG. 13 is a flowchart showing the procedure of a compressor installation work included in a manufacturing method for the outdoor unit of a refrigeration cycle device according to an embodiment.

[0010] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Note that the present disclosure is not limited to the following embodiments, and modifications or omissions are possible within the scope of the present disclosure.

[0011] 1 is a refrigerant circuit diagram showing an overview of a refrigeration cycle apparatus 100 according to an embodiment. The configuration of the refrigeration cycle apparatus 100 will be described with reference to FIG.

[0012] 1, the refrigeration cycle apparatus 100 includes an indoor unit 110 and an outdoor unit 120. In Fig. 1, the flow of refrigerant in the refrigeration cycle apparatus 100 during heating operation is indicated by dashed arrows, and the flow of refrigerant during cooling operation is indicated by solid arrows.

[0013] The indoor unit 110 has an indoor heat exchanger 111 that functions as an evaporator during cooling operation and as a condenser during heating operation, and an indoor blower 112 .

[0014] The outdoor unit 120 includes a four-way valve 121 that switches between a refrigerant circuit during heating operation and a refrigerant circuit during cooling operation, a compressor 42 that compresses the refrigerant, a pressure reducing device 123 that reduces the pressure of the refrigerant, an outdoor heat exchanger 124 that functions as a condenser during cooling operation and as an evaporator during heating operation, and an outdoor blower 125 that blows outdoor air to the outdoor heat exchanger 124. Specifically, the pressure reducing device 123 is an expansion valve.

[0015] The indoor heat exchanger 111, the four-way valve 121, the compressor 42, the pressure reducing device 123, and the outdoor heat exchanger 124 are connected by piping 200 to form a refrigeration cycle in which the refrigerant circulates.

[0016] Fig. 2 is a perspective view showing the appearance of the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment. Fig. 3 is a perspective view showing the internal structure of the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment. In Fig. 3, the front panel 23, the top panel 26, and the fan guard 27 shown in Fig. 2 are omitted. The configuration of the outdoor unit 120 will be described using Figs. 2 and 3.

[0017] 2 and 3 , the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment has a box-shaped housing 20. The housing 20 includes legs 21, a bottom panel 22, a front panel 23, side panels 24, a rear panel 25, a top panel 26, and a fan guard 27.

[0018] The legs 21 are provided on the surface on which the outdoor unit 120 is installed, and support the bottom panel 22. For example, two legs 21 are provided.

[0019] The bottom panel 22 is provided on the upper part of the legs 21. The front panel 23 is placed on the bottom panel 22 and covers the front surface of the housing 20. The front panel 23 has a housing opening 23a formed therein through which air is blown out. The side panels 24 are placed on the bottom panel 22 and cover the sides of the housing 20. The side panels include a right side panel 24a that covers the right side surface of the housing 20 and a left side panel 24b that covers the left side surface of the housing 20. The rear panel 25 is placed on the bottom panel 22 and covers the rear surface of the housing 20. The top panel 26 is placed on the upper ends of the front panel 23, the side panel 24, and the rear panel 25 and covers the top surface of the housing 20. The bottom panel 22, the front panel 23, the side panel 24, the rear panel 25, and the top panel 26 are made of, for example, sheet metal.

[0020] The fan guard 27 is a lattice-shaped member provided to close the housing opening 23 a formed in the front panel 23 , and prevents foreign matter from entering the interior of the outdoor unit 120 .

[0021] As shown in Fig. 3, the interior of the housing 20 is divided by a partition plate 29 into a machine chamber 31 and a heat exchange chamber 32. A covered compressor 122 is disposed in the machine chamber 31. The covered compressor 122 is mounted on the bottom panel 22. An outdoor heat exchanger 124 and an outdoor blower 125 are disposed in the heat exchange chamber 32. The outdoor heat exchanger 124 is provided in an L-shape along the left side surface from the rear surface of the housing 20. The outdoor heat exchanger 124 includes a plurality of fins 124a disposed in parallel at equal intervals and piping 124b disposed perpendicular to the fins.

[0022] Fig. 4 is a perspective view of the covered compressor 122 in the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment. Fig. 5 is an exploded perspective view of the covered compressor 122 in the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment. The structure of the covered compressor 122 will be described with reference to Figs. 4 and 5 .

[0023] The covered compressor 122 has a top cover 41, a compressor 42, soundproofing material 6, and a terminal cover 44. The compressor 42 has a cylindrical portion 40, a terminal portion 43, a suction pipe 45, and a discharge pipe 46.

[0024] The top cover 41 is attached to the top of the compressor 42. The cylindrical portion 40 of the compressor 42 has a cylindrical shape and compresses the refrigerant. The suction pipe 45 is attached to the top of the compressor 42 and draws in the refrigerant before compression. The discharge pipe 46 is attached to the top of the compressor 42 and discharges the compressed refrigerant. The suction pipe 45 and the discharge pipe 46 are each connected to the piping 200.

[0025] The compressor 42 generates operating noise when compressing the refrigerant. The soundproofing material 6 is wrapped around the side surface of the compressor 42 to suppress the operating noise generated by the compressor 42. The structure of the soundproofing material 6 will be described later. The terminal cover 44 is attached to the soundproofing material 6 from the side so as to cover the terminal portion 43.

[0026] Fig. 6 is a top view of the covered compressor 122 in the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment. Fig. 7 is a cross-sectional view of the covered compressor 122 in the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment, taken along line A-A in Fig. 5. Fig. 8 is a development view of the soundproofing material 6 in the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment. The structure of the soundproofing material 6 will be described with reference to Figs. 6 to 8.

[0027] The soundproofing material 6 is composed of a first soundproofing material 60 and a second soundproofing material 61. As shown in Fig. 8, the first soundproofing material 60 is fixed to the second soundproofing material 61 by a stitching portion 615. The stitching portion 615 is formed by stitching the first soundproofing material 60 and the second soundproofing material 61 together with thread.

[0028] Furthermore, the seam 615 is sewn in a straight line along the height direction of the compressor 42 when the compressor 42 is covered, and is provided at only one location in the circumferential direction on the side surface of the compressor 42. This configuration makes it possible to prevent deformation of the first soundproofing material 60. This is because if seams were provided at multiple locations in the circumferential direction on the side surface of the compressor 42, the first soundproofing material 60 would deform and bulge toward the compressor when the soundproofing material 60 is wrapped around the compressor 42.

[0029] 8, the soundproofing material 6 has an opening 616. The opening 616 is provided to match the size and position of the terminal portion 43.

[0030] 7, the first sound-proofing material 60 is a sheet-like member having a structure in which a first sound-absorbing material 600 and a first sound-insulating material 601 are combined in the thickness direction. The first sound-insulating material 60 covers the side surface of the compressor 42. The first sound-absorbing material 600 attenuates the sound generated by the compressor 42 and is, for example, felt. The first sound-insulating material 601 blocks the sound absorbed by the first sound-absorbing material 600 and is, for example, rubber.

[0031] The first soundproofing material 60 has a first overlapping portion 602 where one end and the other end in the circumferential direction of the side surface of the compressor 42 overlap. In this specification, the end does not refer only to the strict end, but to an area having a certain width from the end.

[0032] The second soundproofing material 61 is a sheet-like member and has a structure in which a second sound-absorbing material 610 and a second sound-insulating material 611 are combined in the thickness direction. The second soundproofing material 61 covers the side surface of the compressor 42 covered with the first soundproofing material 60. The second sound-absorbing material 610 attenuates sound generated from the compressor 42 and is, for example, felt. The second sound-insulating material 611 blocks sound absorbed by the second sound-absorbing material 610 and is, for example, rubber. The second soundproofing material 61 has a second overlapping portion 612 where one end and the other end in the circumferential direction of the side surface of the compressor 42 overlap.

[0033] In this embodiment, the soundproofing materials 6 are arranged in the following order from the center in the radial direction of the compressor 42: first sound-absorbing material 600, first sound-insulating material 601, second sound-absorbing material 610, and second sound-insulating material 611. By alternately arranging the sound-absorbing materials and sound-insulating materials in this manner, it is possible to effectively suppress the noise generated by the compressor 42.

[0034] As shown in FIG. 6 , the first overlapping portion 602 and the second overlapping portion 612 are positioned at different positions in the circumferential direction of the side surface of the compressor 42. This two-layer structure with the overlapping portions positioned at different positions can reduce leakage of operating noise from the compressor compared to a compressor structure with only one layer of soundproofing material. Operating noise generated by the compressor 42 is blocked by the second soundproofing material 61 even if a gap occurs in the first overlapping portion 602. Furthermore, operating noise generated by the compressor 42 is blocked by the first soundproofing material 60 even if a gap occurs in the second overlapping portion 612. As a result, leakage of operating noise caused by gaps in the soundproofing material can be reduced.

[0035] The second soundproofing material 61 also has a hook-and-loop fastener 613. The hook-and-loop fastener 613 fastens the ends of the second soundproofing material 61 together. The hook-and-loop fastener 613 is also arranged to cover the compressor 42. Because the first soundproofing material 60 is fixed to the second soundproofing material 61 by stitching 615, it is not necessary to install a hook-and-loop fastener on the first soundproofing material 60. This configuration can reduce the number of work steps and parts.

[0036] Fig. 9 is a flowchart showing the procedure for installing the covered compressor 122, which is included in the manufacturing method of the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment. The procedure for installing the covered compressor 122 will be described using Fig. 9. The flowchart in Fig. 9 starts after the compressor 42 is manufactured. Steps S101 to S107 in Fig. 9 are performed by a person or a machine.

[0037] In step S101 , the piping 200 is attached to the intake pipe 45 and the discharge pipe 46 of the compressor 42 .

[0038] Step S102 is a procedure performed after step S101. In step S102, the first soundproofing material 60 and the second soundproofing material 61 are joined and fixed together. More specifically, in step S102, the first soundproofing material 60 and the second soundproofing material 61 are sewn together with thread to form a sewn portion 615.

[0039] Step S103 is a procedure performed after step S102. In step S103, an opening 616 is formed in the soundproofing material 6. The position and size of the opening 616 may be determined based on the position and size of the terminal portion 43.

[0040] Step S104 is a procedure performed after step S103. In step S104, the first soundproofing material 60 is wrapped around the side surface of the compressor 42 in the circumferential direction for at least one turn. In step S104, a first overlapping portion 602 is formed.

[0041] Step S105 is a procedure performed after step S104. In step S105, the second soundproofing material 61 is wrapped around the side surface of the compressor 42 in the circumferential direction for at least one turn. In step S105, a second overlapping portion 612 is formed.

[0042] Step S106 is a procedure performed after step S105. In step S106, the ends of the second soundproofing material 61 are fixed together by the hook-and-loop fasteners 613. Also in step S106, the second soundproofing material 61 is arranged to cover the compressor 42.

[0043] Step S107 is a procedure that is performed after step S106. In step S107, the terminal cover 44 is attached to the soundproofing material 6.

[0044] Step S108 is a procedure performed after step S107. In step S108, the top cover 41 is attached to the top surface of the compressor 42. The covered compressor 122 is formed by step S108. When the procedure of step S108 is completed, the flowchart ends.

[0045] As described above, the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment includes the cylindrical compressor 42 that compresses a refrigerant, the first sound-insulating material 60 that is a sheet-like member and covers the side surface of the compressor 42, and the second sound-insulating material 61 that is a sheet-like member and covers the side surface of the compressor 42 that is covered with the first sound-insulating material 60, the first sound-insulating material 60 having a first joint (corresponding to the first overlapping portion 602) at which one end and the other end in the circumferential direction of the side surface of the compressor 42 are joined, and the second sound-insulating material 61 having a second joint (corresponding to the second overlapping portion 612) at which one end and the other end in the circumferential direction of the side surface of the compressor 42 overlap, the first joint and the second joint being positioned at different positions in the circumferential direction of the side surface of the compressor 42. With this configuration, the outdoor unit of the refrigeration cycle apparatus according to the embodiment has the effect of reducing leakage of compressor operating noise compared to outdoor units of conventional refrigeration cycle apparatuses.

[0046] The manufacturing method of the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment includes a first step (corresponding to step S101) of attaching the piping 200 of the refrigeration cycle apparatus 100 to be connected to the suction pipe 45 and the discharge pipe 46 of the cylindrical compressor 42 that compresses the refrigerant, and a second step (corresponding to step S102) of wrapping a sheet-like first soundproofing material 60 around the side surface of the compressor 42 to form a first joint portion (corresponding to a first overlap portion 602) that joins one end and the other end in the circumferential direction of the side surface of the compressor 42. The method includes a second step (corresponding to step S104) of wrapping a sheet-like second sound-proofing material 61 around the side surface of the compressor 42 covered with the first sound-proofing material 60 and forming a second joint (corresponding to second overlapping portion 612) that joins one end and the other end of the sheet-like second sound-proofing material 61 at a position different from the first joint in the circumferential direction of the side surface of the compressor 42, and a fourth step (corresponding to step S106) of fixing the one end and the other end of the second sound-proofing material 61. With this configuration, the outdoor unit manufactured by the manufacturing method for the outdoor unit of the refrigeration cycle apparatus according to the embodiment has the effect of reducing leakage of compressor operating noise compared to outdoor units of conventional refrigeration cycle apparatuses.

[0047] Furthermore, the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment has, as an additional configuration, a first joint portion which is a first overlapping portion 602 where one end portion overlaps the other end portion, and a second joint portion which is a second overlapping portion 612 where one end portion overlaps the other end portion. With this additional configuration, the outdoor unit of the refrigeration cycle apparatus according to the embodiment has the effect of suppressing the operating noise of the compressor.

[0048] Furthermore, the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment has, as an additional configuration, the first sound-proofing material 60 having a first sound-absorbing material 600 that attenuates sound generated from the compressor and a first sound-insulating material 601 that blocks sound absorbed by the first sound-absorbing material 600, and the second sound-insulating material 61 having a second sound-absorbing material 610 that attenuates sound generated from the compressor 42 and a second sound-insulating material 611 that blocks sound absorbed by the second sound-absorbing material 610. With this additional configuration, the outdoor unit of the refrigeration cycle apparatus according to the embodiment has the effect of effectively reducing leakage of the operating sound of the compressor.

[0049] Furthermore, as an additional configuration, the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment has the first sound-proofing material 60 and the second sound-proofing material 61 arranged in the following order from the center in the radial direction of the compressor 42: first sound-insulating material 601, first sound-absorbing material 600, second sound-insulating material 611, second sound-absorbing material 610, or in the following order from the center in the radial direction of the compressor 42: first sound-insulating material 601, second sound-absorbing material 610, second sound-insulating material 611. With this additional configuration, the outdoor unit of the refrigeration cycle apparatus according to the embodiment has the effect of being able to effectively suppress noise generated from the compressor.

[0050] Furthermore, the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment has an additional configuration in which the first soundproofing material 60 is fixed to the second soundproofing material 61 by a first fixing portion (corresponding to the stitching portion 615), and the second soundproofing material 61 is fixed at one end and the other end by a second fixing portion (corresponding to the hook-and-loop fastener 613) and is arranged to cover the compressor 42. This additional configuration provides the outdoor unit of the refrigeration cycle apparatus according to the embodiment with the effect of reducing the number of work steps and parts.

[0051] Furthermore, the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment has, as an additional configuration, a first fixing portion (corresponding to the seam 615) provided at only one location in the circumferential direction on the side surface of the compressor 42. This additional configuration provides the outdoor unit of the refrigeration cycle apparatus according to the embodiment with the effect of preventing deformation of the soundproofing material due to the first fixing portion.

[0052] Furthermore, the manufacturing method for the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment has, as an additional configuration, the first sound-proofing material 60 having a first sound-absorbing material 600 that attenuates sound generated from the compressor and a first sound-insulating material 601 that blocks sound absorbed by the first sound-absorbing material 600, and the second sound-insulating material 61 having a second sound-absorbing material 610 that attenuates sound generated from the compressor 42 and a second sound-insulating material 611 that blocks sound absorbed by the second sound-absorbing material 610. With this additional configuration, the outdoor unit manufactured by the manufacturing method for the outdoor unit of the refrigeration cycle apparatus according to the embodiment has the effect of effectively reducing leakage of compressor operating sound.

[0053] Furthermore, the manufacturing method for the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment includes, as an additional configuration, a first joint portion which is a first overlapping portion 602 where one end portion overlaps the other end portion, and a second joint portion which is a second overlapping portion 612 where one end portion overlaps the other end portion. With this additional configuration, the outdoor unit manufactured by the manufacturing method for the outdoor unit of the refrigeration cycle apparatus according to the embodiment has the effect of suppressing the operating noise of the compressor.

[0054] Furthermore, the manufacturing method for the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment has an additional configuration in which the first sound-proofing material 60 and the second sound-proofing material 61 are arranged in the following order from the center in the radial direction of the compressor 42: first sound-insulating material 601, first sound-absorbing material 600, second sound-insulating material 611, second sound-absorbing material 610, or in the following order from the center in the radial direction of the compressor 42: first sound-insulating material 601, second sound-absorbing material 610, second sound-insulating material 611. This additional configuration enables the outdoor unit manufactured by the manufacturing method for the outdoor unit of the refrigeration cycle apparatus according to the embodiment to effectively suppress noise generated from the compressor.

[0055] Furthermore, the manufacturing method for the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment includes an additional configuration in which the first soundproofing material 60 is fixed to the second soundproofing material 61 by a first fixing portion (corresponding to the stitching portion 615), and the second soundproofing material 61 is fixed at one end and the other end by a second fixing portion (corresponding to the hook-and-loop fastener 613) and is arranged to cover the compressor 42. With this additional configuration, the manufacturing method for the outdoor unit of the refrigeration cycle apparatus according to the embodiment has the effect of reducing the number of work steps and parts.

[0056] Furthermore, in the manufacturing method for the outdoor unit 120 of the refrigeration cycle apparatus 100 according to the embodiment, as an additional configuration, the first fixing portion (corresponding to the stitching portion 615) is provided at only one location in the circumferential direction on the side surface of the compressor 42. With this additional configuration, the outdoor unit manufactured by the manufacturing method for the outdoor unit of the refrigeration cycle apparatus according to the embodiment has the advantage of being able to prevent deformation of the soundproofing material due to the first fixing portion.

[0057] In the embodiment, the refrigeration cycle device has a four-way valve and is configured to be able to switch between cooling operation and heating operation, but this is not limited thereto. The refrigeration cycle device may not have a four-way valve and may be configured to perform only cooling operation or heating operation.

[0058] In the embodiment, the first soundproofing material is fixed to the second soundproofing material by sewing the seam, but the fixing method is not limited to this. Any method may be used as long as the first soundproofing material and the second soundproofing material are fixed at one location in the circumferential direction of the compressor. For example, the first soundproofing material and the second soundproofing material may be fixed with a stapler.

[0059] In the embodiment, the soundproofing material is fixed to the compressor using a hook-and-loop fastener, but this is not a limitation. Any method can be used as long as the soundproofing material can be fixed to the compressor. For example, it may be fixed using a threaded rivet or a hook.

[0060] In addition, in the embodiment, only the ends of the second soundproofing material are fixed together by the hook-and-loop fastener, but this is not limiting. The first soundproofing material may also have a hook-and-loop fastener together with the second soundproofing material, and the ends of the first soundproofing material may be fixed together.

[0061] Furthermore, in the embodiment, the soundproofing materials are arranged in the following order from the center in the circumferential direction of the compressor: first sound-absorbing material, first sound-insulating material, second sound-absorbing material, and second sound-insulating material. However, this is not limited to this order. The combination of sound-absorbing and sound-insulating materials is determined by the designer. For example, the order from the inside in the circumferential direction of the compressor may be: first sound-insulating material, first sound-absorbing material, second sound-insulating material, and second sound-absorbing material. The number of sound-absorbing and sound-insulating materials may also be different. For example, there may be two sound-absorbing materials and three sound-insulating materials, and the order from the inside in the circumferential direction of the compressor may be: first sound-insulating material, first sound-absorbing material, second sound-insulating material, third sound-insulating material, and second sound-absorbing material. Note that even in this order, the arrangement of the sound-insulating materials from the center in the radial direction of the compressor is also included in the case where the order is: first sound-insulating material, first sound-absorbing material, second sound-insulating material, and second sound-absorbing material.

[0062] In addition, in the embodiment, the first soundproofing material has a first overlapping portion, and the second soundproofing material has a second overlapping portion, but this is not limited to this. The first soundproofing material and the second soundproofing material do not need to have an overlapping portion, as long as they have a joint where their ends are joined. For example, one end of the soundproofing material and the other end of the soundproofing material may be butted together, and the ends may be joined so that no overlapping portion is created.

[0063] In addition, in the embodiment, the soundproofing material has a two-layer structure of a first soundproofing material and a second soundproofing material, but this is not limiting and the soundproofing material may have a two-layer or more structure.

[0064] In addition, although the terminals and the terminal cover are provided on the side of the compressor in the embodiment, this is not limiting. The terminals and the terminal cover may be provided on the top of the compressor. In this case, the top cover has openings corresponding to the terminals.

[0065] In addition, in the embodiment, the seam and the opening are formed after the pipe is attached, but this is not a limitation. The pipe may be attached after the seam and the opening are formed. Any configuration is possible as long as the soundproofing material is attached after the pipe is attached.

[0066] In addition, in the embodiment, the first soundproofing material is wrapped around the side surface of the compressor in the circumferential direction one or more times, and then the second soundproofing material is wrapped around the side surface of the compressor in the circumferential direction one or more times, but this is not limited to this. The first soundproofing material and the second soundproofing material may be wrapped around simultaneously. This is because the circumferential lengths of the first soundproofing material and the second soundproofing material are predetermined, and the positional relationship between the first overlapping portion and the second overlapping portion can be uniquely determined by the stitching.

[0067] Although the preferred embodiments have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications and substitutions can be made to the above-described embodiments without departing from the scope of the claims.

[0068] 6 Soundproofing material, 20 Housing, 21 Legs, 22 Bottom panel, 23 Front panel, 23a Housing opening, 24 Side panel, 24a Right side panel, 24b Left side panel, 25 Rear panel, 26 Top panel, 27 Fan guard, 29 Partition plate, 31 Machine room, 32 Heat exchanger room, 40 Cylindrical part, 41 Top cover, 42 Compressor, 43 Terminal part, 44 Terminal part cover, 45 Intake pipe, 46 Discharge pipe, 60 First soundproofing material, 61 Second soundproofing material, 100 Refrigeration cycle device, 110 Indoor unit, 111 Indoor heat exchanger, 112 Indoor blower, 120 Outdoor unit, 121 Four-way valve, 122 Covered compressor, 123 Pressure reducing device, 124 Outdoor heat exchanger, 124a Fin, 124b Piping, 125 Outdoor blower, 200 Piping, 600 First sound absorbing material, 601 First sound insulating material, 602 First overlapping portion, 610 Second sound absorbing material, 611 Second sound insulating material, 612 Second overlapping portion, 613 Hook-and-loop fastener, 615 Seam, 616 Opening

Claims

1. A cylindrical compressor that compresses a refrigerant; A first soundproofing material that is a sheet-like member and covers the entire side surface of the compressor; a second soundproofing material which is a sheet-like member and covers the entire side surface of the compressor covered with the first soundproofing material; the first soundproofing material has a first joint portion at which one end and the other end in a circumferential direction of a side surface of the compressor are joined, the second soundproofing material has a second joint portion at which one end and the other end in a circumferential direction of the side surface of the compressor are joined, In the circumferential direction of the side surface of the compressor, the position of the first joint portion and the position of the second joint portion are different. Outdoor unit of a refrigeration cycle device.

2. the first joint portion is a first overlapping portion where the one end portion and the other end portion overlap each other, The second joint portion is a second overlapping portion where the one end portion and the other end portion overlap each other. An outdoor unit for a refrigeration cycle apparatus according to claim 1.

3. The first joint has a configuration in which the one end and the other end are butted together, The second joint portion has a configuration in which the one end portion and the other end portion are butted against each other. An outdoor unit for a refrigeration cycle apparatus according to claim 1.

4. The first sound-proofing material includes a first sound-absorbing material that attenuates sound generated by the compressor, and a first sound-insulating material that blocks the sound absorbed by the first sound-absorbing material, The second soundproofing material has a second sound absorbing material that attenuates the sound generated by the compressor, and a second sound insulating material that blocks the sound absorbed by the second sound absorbing material. An outdoor unit for a refrigeration cycle apparatus according to any one of claims 1 to 3.

5. The first sound-proofing material and the second sound-proofing material are arranged in the order of the first sound-insulating material, the first sound-absorbing material, the second sound-insulating material, and the second sound-absorbing material from the center side in the radial direction of the compressor, or in the order of the first sound-absorbing material, the first sound-insulating material, the second sound-absorbing material, and the second sound-insulating material from the center side in the radial direction of the compressor. An outdoor unit for a refrigeration cycle apparatus according to claim 4.

6. the first soundproofing material is fixed to the second soundproofing material by a first fixing portion, The second soundproofing material is arranged to cover the compressor with the one end and the other end fixed by a second fixing portion. An outdoor unit for a refrigeration cycle apparatus according to claim 1.

7. The first fixing portion is provided at only one location in the circumferential direction of the side surface of the compressor. An outdoor unit for a refrigeration cycle apparatus according to claim 6.

8. A first step of installing pipes of a refrigeration cycle device to be connected to a suction pipe and a discharge pipe of a cylindrical compressor that compresses a refrigerant; a second step of wrapping a sheet-like first soundproofing material around the entire side surface of the compressor and forming a first joint portion that joins one end portion and the other end portion in the circumferential direction of the side surface of the compressor; a third step of wrapping a sheet-like second sound-proofing material around the entire side surface of the compressor covered with the first sound-proofing material, and forming a second joint portion joining one end portion and the other end portion of the sheet-like second sound-proofing material at a position different from the first joint portion in the circumferential direction of the side surface of the compressor; and a fourth step of fixing one end and the other end of the second soundproofing material. A method for manufacturing an outdoor unit of a refrigeration cycle device.