Silencer, compressor and refrigeration equipment

Abstract

The invention provides a silencer, a compressor and refrigeration equipment wherein the silencer comprises: a housing, in which a silencing cavity is arranged, a part of a bottom plate of the housing protrudes towards the interior of the silencing cavity; the first oil leakage hole is formed in the protrusion and used for discharging oil in the silencing cavity. According to the technical scheme, the oil discharge efficiency of the first oil leakage hole in the bottom of the silencer is effectively improved, and the oil spitting amount in the operation process of the compressor is reduced.

Description

[0001] This application is a divisional application of the Chinese patent application with the application date of December 9, 2019, application number "201911248249.3", and invention name "Silencer, compressor and refrigeration equipment". Technical Field

[0002] The present invention relates to the technical field of refrigeration equipment, and in particular to a muffler, a compressor and a refrigeration equipment. Background Art

[0003] Refrigerators are essential household appliances in daily life. In addition to their important freezing capacity, noise level is also one of the key indicators of refrigerators. The noise of refrigerators mainly comes from the compressor, which is generally equipped with a muffler to reduce noise. The bottom of the muffler is provided with an oil leakage hole connected to the inside of the muffler. When the refrigeration oil flows back along the outer wall of the muffler shell to the bottom of the compressor shell, the refrigeration oil near the oil leakage hole is easily sucked into the muffler under the drive of the refrigerant, and finally discharged from the compressor from the exhaust pipe with the flow of the refrigerant, causing the compressor to discharge a large amount of oil. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] In view of this, one object of the present invention is to provide a muffler.

[0006] Another object of the present invention is to provide a compressor.

[0007] Another object of the present invention is to provide a refrigeration device.

[0008] In order to achieve the above-mentioned purpose, the technical solution of the first aspect of the present invention provides a silencer, including: a shell, in which a silencer chamber is arranged, and a part of the bottom plate of the shell protrudes into the silencer chamber; a first oil leakage hole is arranged on the protrusion, and the first oil leakage hole is used to discharge the oil in the silencer chamber.

[0009] In this technical solution, by setting a part of the bottom plate of the shell to protrude into the silencer cavity, and setting the first oil leakage hole on the protrusion, the position of the first oil leakage hole can be raised, reducing the possibility of oil being sucked into the muffler from the first oil leakage hole, thereby reducing the amount of oil discharged during the operation of the compressor.

[0010] Specifically, after a part of the bottom plate protrudes into the silencer cavity, it is away from the bottom of the muffler, and the first oil leakage hole is arranged on the protrusion, so that the distance between the first oil leakage hole and the oil flowing to the bottom of the muffler is increased, thereby reducing the suction force on the oil. At the same time, since the direction of the protrusion is toward the silencer cavity, the position of the first oil leakage hole on the protrusion is higher than the bottom of the muffler. In order to enter the muffler, the oil has to continuously overcome its own weight over a long distance, thereby further increasing the difficulty of the oil being sucked into the muffler and reducing the amount of oil entering the muffler from the first oil leakage hole, thereby effectively reducing the oil discharge of the compressor; in addition, after the first oil leakage hole is raised, since there is a certain interval between the first oil leakage hole and the bottom of the muffler, the possibility of the oil at the bottom of the muffler clogging the first oil leakage hole is reduced, and it is also beneficial for the oil inside the muffler to flow out, thereby further reducing the oil discharge of the compressor.

[0011] In the above technical solution, the first oil leakage hole is arranged at the root of the protrusion.

[0012] In this technical solution, by setting the first oil leakage hole at the root of the protrusion, it is beneficial for the oil that flows along the top of the protrusion to the root of the protrusion to flow out from the first oil leakage hole; it is also beneficial for the oil on the non-protruding part of the bottom plate of the shell to flow out from the first oil leakage hole, reducing the accumulation of oil in the silencer cavity, thereby reducing the amount of oil in the silencer cavity, and then effectively reducing the oil discharge volume of the compressor.

[0013] In any of the above technical solutions, the first oil leakage hole is arranged obliquely.

[0014] In this technical solution, the obliquely arranged first oil leakage hole is conducive to the oil flowing out along the inclined surface, thereby improving the smoothness of the oil flow; in addition, the obliquely arranged first oil leakage hole has a larger orifice area than the vertically arranged first oil leakage hole, which is conducive to reducing the possibility of forming an oil film at the orifice position to block the first oil leakage hole under the action of surface tension, thereby improving the oil discharge efficiency of the first oil leakage hole and reducing the amount of oil inside the muffler.

[0015] In any of the above technical solutions, the angle between the hole axis of the first oil leakage hole and the non-raised portion of the bottom plate is an acute angle.

[0016] In this technical solution, the angle between the hole axis of the first oil leakage hole and the non-raised part of the bottom plate is an acute angle, so that the first oil leakage hole is obliquely arranged on the protrusion, and the oil in the silencer cavity can flow out of the muffler along the inclined first oil leakage hole, thereby reducing the oil discharge amount of the compressor; relative to the first oil leakage hole arranged perpendicular to the bottom plate, the first oil leakage hole with an acute angle between the hole axis and the bottom plate has a larger opening on the bottom plate, and the opening is an inclined surface, so when the oil flows to the opening, it is easier to flow out because the change in flow direction is smaller; it can be understood that for the vertically arranged first oil leakage hole, when the oil flows to the opening, it needs to change direction by 90°, and the flow is more difficult; in addition, the first oil leakage hole with an acute angle hole axis has a larger opening area, which is conducive to reducing the situation where the oil blocks the first oil leakage hole under the action of surface tension.

[0017] In the above technical solution, the angle between the hole axis and the non-raised portion of the bottom plate is 0° to 30°.

[0018] In this technical solution, the angle between the hole axis and the non-raised portion of the bottom plate is set to be less than 30°, which is beneficial to ensure that the first oil leakage hole has a larger opening and improve the oil drainage efficiency.

[0019] In any of the above technical solutions, an oil blocking member is provided at the outer position of the bottom of the shell, and the oil blocking member is arranged opposite to the first oil leakage hole to prevent oil from being sucked into the first oil leakage hole from the outer side of the shell.

[0020] In this technical solution, an oil baffle is provided and arranged opposite to the first oil leakage hole, so that the oil flowing back from the outer wall of the muffler shell to the bottom of the compressor can be blocked by the oil baffle, which is beneficial to reduce the oil suction from the first oil leakage hole during the reciprocating operation of the compressor and better discharge the oil in the muffler.

[0021] In the above technical solution, the oil blocking member is spaced apart from the first oil leakage hole.

[0022] In this technical solution, the oil baffle is spaced apart from the first oil leakage hole. On the one hand, it can increase the distance between the oil returning from the outside of the muffler shell and the first oil leakage hole, reducing the suction of oil by the first oil leakage hole. On the other hand, it can also provide a certain flow space for the oil flowing out of the first oil leakage hole, reducing the situation where the oil gathers near the first oil leakage hole due to poor flow and blocks the first oil leakage hole, further improving the smoothness of oil discharge from the first oil leakage hole.

[0023] In any of the above technical solutions, the width of the protrusion along the radial sides of the first oil leakage hole is 6mm~10mm; and / or the height of the top of the protrusion relative to the root of the protrusion is 3mm~6mm; and / or the distance between the first oil leakage hole and the oil baffle is 5mm~8mm; and / or the thickness of the oil baffle is 1mm~2mm.

[0024] In this technical solution, by limiting the width range of the protrusion on both sides of the radial direction of the first oil leakage hole, the height range of the top of the protrusion relative to the root of the protrusion, and the distance range between the first oil leakage hole and the oil baffle, a larger space can be provided under the first oil leakage hole to facilitate the discharge of oil from the first oil leakage hole and improve the oil discharge efficiency, and the space under the first oil leakage hole can be prevented from being too large, thereby occupying the space of the compressor; by limiting the thickness range of the oil baffle, the oil baffle has sufficient thickness to ensure a certain strength, thereby preventing the suction force generated during the reciprocating operation of the compressor from causing damage to the oil baffle; at the same time, it will not be too thick to cause processing difficulties.

[0025] The technical solution of the second aspect of the present invention provides a compressor, comprising: a casing; and a muffler according to any one of the technical solutions of the first aspect, disposed in the casing.

[0026] In this technical solution, by adopting the silencer of any of the above technical solutions, all the beneficial effects of the above technical solutions are achieved, which will not be repeated here; by setting up a casing, it is convenient to accommodate the silencer and reduce the noise of other parts of the compressor in the casing.

[0027] The compressor in the above technical solution is a piston compressor, a screw compressor, a centrifugal compressor or a linear compressor.

[0028] The technical solution of the third aspect of the present invention provides a refrigeration device, comprising: a box body; the muffler of any one of the technical solutions in the first aspect, or the compressor in the second aspect, is arranged in the box body.

[0029] In this technical solution, by adopting the silencer of any one of the technical solutions in the first aspect, all the beneficial effects of the above technical solution are achieved, which will not be repeated here; by adopting the compressor in the second aspect, all the beneficial technical effects of the technical solution in the second aspect are achieved, which will not be repeated here; by setting up a box, it is convenient to accommodate the silencer or the compressor.

[0030] The refrigeration equipment is any one of a refrigerator, a freezer, a freezer, and an air conditioner.

[0031] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram of a transverse cross-sectional structure of a muffler according to an embodiment of the present invention;

[0033] Figure 2 is a schematic diagram of a three-dimensional exploded structure of a muffler according to an embodiment of the present invention;

[0034] Figure 3 is a schematic diagram of a top view of a muffler according to an embodiment of the present invention;

[0035] Figure 4 is a schematic longitudinal cross-sectional view of a muffler according to another embodiment of the present invention;

[0036] Figure 5 is a schematic cross-sectional structural diagram of a first oil leakage hole of a muffler according to an embodiment of the present invention;

[0037] Figure 6 is a schematic cross-sectional structural diagram of a muffler according to another embodiment of the present invention;

[0038] Figure 7 is a schematic block diagram of the structure of a compressor according to an embodiment of the present invention;

[0039] Figure 8 It is a schematic block diagram of the structure of a refrigeration device according to an embodiment of the present invention.

[0040] in, Figures 1 to 8 The corresponding relationship between the reference numerals and component names in the figure is:

[0041] 100 shell, 102 upper silencer cavity, 104 partition, 106 lower silencer cavity, 108 protrusion, 110 first oil leakage hole, 112 oil baffle, 114 air inlet, 116 air outlet, 118 connecting pipe, 120 second oil leakage hole, 122 bottom plate, 2 refrigeration equipment, 20 compressor, 200 muffler, 202 shell, 22 box. DETAILED DESCRIPTION

[0042] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0044] Refer to the following Figures 1 to 8 Some embodiments according to the invention are described.

[0045] like Figure 1 As shown, a muffler 200 according to an embodiment of the present invention comprises: a housing 100, a muffler cavity is provided in the housing 100, and a first oil leakage hole 110 for discharging oil is provided on the housing 100.

[0046] like Figure 2 As shown, specifically, a portion of the bottom plate 122 of the housing 100 protrudes 108 into the muffler cavity, and the first oil leakage hole 110 is provided on the protrusion 108 .

[0047] In this embodiment, by setting a portion of the bottom plate 122 of the shell 100 as a protrusion 108 into the silencer cavity, and setting the first oil leakage hole 110 on the protrusion 108, the position of the first oil leakage hole 110 can be raised, reducing the possibility of oil being sucked into the muffler 200 from the first oil leakage hole 110, thereby reducing the amount of oil discharged during the operation of the compressor 20.

[0048] like Figure 2 and Figure 4 As shown, further, the first oil leakage hole 110 is arranged at the root of the protrusion 108, which is conducive to the oil flowing from the top of the protrusion 108 to the root of the protrusion 108 and then flowing out from the first oil leakage hole 110. In addition, the oil on a part of the bottom plate 122 of the shell 100 that is not protruded 108 can also flow out from the first oil leakage hole 110, reducing the accumulation of oil in the silencer cavity, thereby reducing the amount of oil in the silencer cavity, and then effectively reducing the oil discharge amount of the compressor 20.

[0049] like Figure 4 and Figure 6 As shown, in any of the above embodiments, the first oil leakage hole 110 is obliquely arranged, and the angle α between the hole axis of the first oil leakage hole 110 and the portion of the bottom plate 122 that is not raised 108 is an acute angle. Furthermore, the angle α is less than 30°, such as 10°, 15°, 18°, 20°, 22°, 25°, etc. The first oil leakage hole 110 that is obliquely arranged and has an angle less than 30° has a large orifice area, which is conducive to reducing the possibility of forming an oil film at the orifice position to block the first oil leakage hole 110 under the action of surface tension of the oil, and is also conducive to guiding the oil to flow thereto, thereby improving the oil discharge efficiency of the first oil leakage hole 110, reducing the amount of oil in the muffler 200, and thereby reducing the oil discharge amount of the compressor 20;

[0050] like Figure 4 and Figure 6As shown, in any of the above embodiments, an oil baffle 112 is provided at the outer position of the bottom of the shell 100, and the oil baffle 112 is arranged opposite to and spaced from the first oil leakage hole 110. Furthermore, the oil baffle 112 is in the shape of a plate, and the plate surface is arranged toward the first oil leakage hole 110, which is beneficial to expanding the oil baffle area and increasing the distance between the oil outside the oil baffle 112 and the first oil leakage hole 110, which is beneficial to reducing the oil being sucked into the first oil leakage hole 110, so that the oil flowing back from the outer wall of the muffler 200 shell 100 to the bottom of the compressor 20 is blocked by the oil baffle 112 and is difficult to be sucked into the first oil leakage hole 110, thereby reducing the amount of oil sucked from the first oil leakage hole 110 during the reciprocating operation of the compressor 20 and facilitating the discharge of the oil in the muffler 200.

[0051] like Figure 1 As shown, in any of the above embodiments, the width D of the protrusion 108 along the radial sides of the first oil leakage hole 110 is 6 mm to 10 mm, for example, D is any one of 7 mm, 8 mm, and 9 mm; Figure 6 As shown, and / or the height H of the top of the protrusion 108 relative to the root of the protrusion 108 is 3mm to 6mm, for example, H is any one of 3mm, 4mm, and 5mm; and / or the distance S between the first oil leakage hole 110 and the oil baffle 112 is 5mm to 8mm, for example, S is any one of 6mm, 7mm, and 7.5mm; and / or the thickness T of the oil baffle 112 is 1mm to 2mm, for example, T is any one of 1.2mm, 1.4mm, and 1.5mm.

[0052] In this embodiment, by limiting the range of the width D of the protrusion 108 on both sides of the radial direction of the first oil leakage hole 110, the range of the height H of the top of the protrusion 108 relative to the root of the protrusion 108, and the range of the distance S between the first oil leakage hole 110 and the oil baffle 112, a larger space can be provided under the first oil leakage hole 110 to facilitate the first oil leakage hole 110 to discharge oil and improve the oil discharge efficiency, and the space under the first oil leakage hole 110 can be prevented from being too large, thereby occupying the space of the compressor 20; by limiting the thickness range of the oil baffle 112, the oil baffle 112 has a sufficient thickness to ensure a certain strength, thereby preventing the suction force generated during the reciprocating operation of the compressor 20 from causing damage to the oil baffle 112; at the same time, it will not be too thick to cause processing difficulties.

[0053] like Figure 7 As shown, an embodiment of the second aspect of the present invention provides a compressor 20 , comprising: a casing 202 ; and a muffler 200 according to any one of the embodiments of the first aspect, disposed in the casing 202 .

[0054] In this embodiment, by adopting the silencer 200 of any one of the above embodiments, all the beneficial effects of the above embodiments are achieved, which will not be repeated here; by setting the casing 202, it is convenient to accommodate the silencer 200 and reduce the noise of other components of the compressor 20 in the casing 202.

[0055] The compressor 20 in the above embodiment is a piston compressor, a screw compressor, a centrifugal compressor or a linear compressor.

[0056] like Figure 8 As shown, in another embodiment, the refrigeration device includes a box body 22 and the compressor 20 in the above second aspect, which is arranged in the box body 22.

[0057] In the above embodiments, by adopting the silencer 200 of any one of the embodiments in the above first aspect, all the beneficial effects of the above embodiments are achieved, which will not be repeated here; by adopting the compressor 20 in the above second aspect, all the beneficial technical effects of the embodiments in the above second aspect are achieved, which will not be repeated here; by setting the box body 22, it is convenient to accommodate the silencer 200 or the compressor 20.

[0058] The refrigeration device 2 is any one of a refrigerator, a freezer, and a freezer.

[0059] like Figure 1 and Figure 3 As shown, a muffler 200 of a compressor 20 according to a specific embodiment of the present application includes: a shell 100, the shell 100 has an air inlet 114, an air outlet 116 and a partition 104, and an air flow channel connecting the air inlet 114 and the air outlet 116 is provided on the partition 104 in the shell 100; the partition 104, the partition 104 and the shell 100 are integrated, and the inner cavity of the muffler 200 is divided into an upper and lower muffler cavity, namely, a lower muffler cavity 106 connected to the air inlet 114 and an upper muffler cavity 102 connected to the air outlet 116; a connecting pipe 118 is provided on the partition 104, which connects the upper muffler cavity 102 and the lower muffler cavity 106 respectively; a first oil leakage hole 110 and a second oil leakage hole 120, as shown Figure 1 and Figure 5As shown, a first oil leakage hole 110 is provided at the bottom of the shell 100 of the muffler 200, and a second oil leakage hole 120 is provided on the partition 104. The two oil leakage holes are respectively located at the bottom of the two muffler chambers, wherein the oil leakage portion at the bottom of the lower muffler chamber 106 in the shell 100 adopts an inward convex form, or in other words, a part of the bottom plate 122 of the shell 100 protrudes upward 108 to construct an oil leakage portion; the angle α between the hole axis of the first oil leakage hole 110 and the horizontal plane at the bottom of the shell 100 is 0° to 30°, and the oil leakage portion also includes an oil baffle 112, which is provided on the corresponding outer side of the shell 100. The setting of the oil baffle 112 is beneficial to reducing the suction of lubricating oil during the reciprocating operation of the compressor 20 and to well discharge the lubricating oil brought into the muffler 200.

[0060] According to some embodiments of the present invention, an oil leakage portion is provided at the bottom of the shell 100 of the muffler 200 , which is located at a horizontal position at the bottom of the lower muffler chamber 106 and is close to the outer side of the shell 100 .

[0061] According to some embodiments of the present invention, the bottom oil leakage portion of the lower muffler chamber 106 of the housing 100 is in an "inwardly convex" form.

[0062] According to some embodiments of the present invention, the width of the oil leakage portion on the housing 100, or the width D of the protrusion 108 on both sides along the radial direction of the first oil leakage hole 110, is 6 mm to 10 mm.

[0063] According to some embodiments of the present invention, the height of the oil leakage portion on the housing 100, that is, the height H of the top of the protrusion 108 relative to the root of the protrusion 108, is 3 mm to 6 mm.

[0064] According to some embodiments of the present invention, the length of the oil leakage portion on the housing 100 in the thickness direction of the outer arc surface of the housing 100, that is, the distance S between the first oil leakage hole 110 and the oil blocking member 112, is 5 mm to 8 mm.

[0065] According to some embodiments of the present invention, the hole axis of the first oil leakage hole 110 and the bottom horizontal plane of the shell 100, or the non-raised portion of the plane, form an angle of 0° to 30°, specifically any one of 5°, 8°, 12°, 16° and the like.

[0066] According to some embodiments of the present invention, there is an oil baffle 112 on the corresponding outer side of the shell 100, and the thickness T of the oil baffle 112 is 1mm to 2mm, which is beneficial to reduce the suction of lubricating oil during the reciprocating operation of the compressor 20 and to discharge the lubricating oil brought into the muffler 200 well.

[0067] The compressor 20 according to the embodiment of the present invention includes the muffler 200 for the compressor 20 .

[0068] According to the silencer 200 for the compressor 20 according to the embodiment of the present invention, the oil leakage part is designed at the bottom, so that the aerodynamic noise caused by the suction of refrigerant and atomized lubricating oil during the operation of the compressor 20 can be effectively reduced, thereby achieving better suction efficiency and noise reduction effect, and ensuring the overall performance of the compressor 20; at the same time, the efficient oil leakage and anti-oil suction design adopted by the present invention can greatly reduce the oil discharge amount during the operation of the compressor 20.

[0069] The technical solution of the present invention is described in detail above in conjunction with the accompanying drawings. Through the technical solution of the present invention, the oil discharge efficiency of the first oil leakage hole at the bottom of the muffler is effectively improved, and the oil discharge amount during the operation of the compressor is reduced.

[0070] In the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "upper" and "lower" etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0072] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0073] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A muffler, characterized in that: For a compressor, the muffler comprises: A shell body having a sound-absorbing chamber therein, wherein a portion of a bottom plate of the shell body protrudes into the sound-absorbing chamber; A first oil leakage hole is provided on the protrusion, and the first oil leakage hole is used to discharge the oil in the muffler cavity; An oil baffle, disposed on the outer side of the bottom of the housing, the oil baffle being arranged opposite to the first oil leakage hole; The first oil leakage hole is arranged at the root of the protrusion, the first oil leakage hole is arranged obliquely, the angle between the hole axis of the first oil leakage hole and the non-protruding part of the bottom plate is an acute angle, and the opening of the first oil leakage hole is an inclined surface; The oil blocking member is in a plate shape, and the plate surface of the oil blocking member is arranged toward the first oil leakage hole.

2. The muffler according to claim 1, characterized in that: The oil blocking member is spaced apart from the first oil leakage hole.

3. The muffler according to claim 1, characterized in that: The angle between the hole axis and the non-raised portion of the bottom plate is 0° to 30°.

4. The muffler according to claim 1, characterized in that: The width of the protrusion along the radial sides of the first oil leakage hole is 6 mm to 10 mm; and / or The height of the top of the protrusion relative to the root of the protrusion is 3 mm to 6 mm; and / or The distance between the first oil leakage hole and the oil blocking member is 5 mm to 8 mm; and / or The thickness of the oil blocking member is 1 mm to 2 mm.

5. The silencer according to any one of claims 1 to 4, characterized in that: The shell has an air inlet, an air outlet and a partition, the partition is arranged in the shell, and is used to divide the shell into an upper muffler chamber and a lower muffler chamber, the air inlet is communicated with the lower muffler chamber, and the air outlet is communicated with the upper muffler chamber; The muffler further comprises a connecting pipe, which is arranged on the partition plate, and the connecting pipe connects the two muffler chambers.

6. The muffler according to claim 5, characterized in that: Also includes: The second oil leakage hole is arranged on the partition plate, and the second oil leakage hole is arranged at the bottom of the upper muffler cavity.

7. A compressor, characterized in that: include: chassis; The silencer according to any one of claims 1 to 6 is arranged in the casing.

8. A refrigeration device, characterized in that: include: Box; The silencer according to any one of claims 1 to 6, or The compressor according to claim 7 is arranged in the casing.

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